JP2010222725A - Rectangular cloth piece-developing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem of a conventional developing apparatus whose total occupied floor area is wide (an excessive floor area in a factory is narrowed), because a roller for loading and hanging a cloth piece is set in a state extended from the final edge portion of an edging conveyer to the conveyer travel direction outside. <P>SOLUTION: In the rectangular cloth piece-developing apparatus for developing the cloth piece Y such as towel, a cloth piece-loading and hanging material 9 is set to an overlapping position just below the edging conveyer 8 to reduce the total occupied floor area of the developing apparatus. Even in the rectangular cloth piece-developing apparatus wherein the cloth piece-loading and hanging member 9 is set to the overlapping position just below the edging conveyer 8, a vertically reversing device 16 is set to the final edge portion of the edging conveyer 8. Thus, the cloth piece Y on the edging conveyer 8 can smoothly be transferred to the loading and hanging member 9 with the vertically reversing device 16. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a developing device for neatly developing a rounded rectangular cloth piece after washing / drying in a laundry factory or the like, and in particular, mainly developing a rectangular cloth piece of a relatively small area such as a face towel or bath towel. It is related with the expansion | deployment apparatus suitable for making it do.

  At laundry factories, face towels and bath towels (hereinafter referred to as rectangular cloth pieces) that are received are folded and shipped cleanly after washing and drying. Taken from.

  And conventionally, the rectangular cloth pieces in a state of being rounded are separated one by one from the group of rectangular cloth pieces in a piled state, and the rectangular cloth pieces are manually stretched out by searching for one short side edge, After the extended short side edge is placed on the feeding conveyor of the folding device, the trailing side of the rectangular cloth piece is fed to the folding device while being shaped in the short side direction.

  However, in a laundry factory, a large amount of rectangular cloth pieces must be processed every day. As described above, with the manual expansion method, the expansion work of the rectangular cloth pieces is troublesome and the amount per piece is one. There is a problem that the processing time is long and the work efficiency is poor.

  In view of this, an affiliated company of the present applicant has already proposed a device shown in FIGS. 22 to 23 as a developing device for automatically developing a rectangular cloth piece such as a towel. Note that the rectangular cloth piece unfolding device shown in FIGS. 22 to 23 is disclosed in Japanese Patent Application Laid-Open No. 2002-113300.

  The known rectangular cloth unfolding device shown in FIG. 22 includes a supply conveyor 1, a lifting device 2, a temporary holding device 3, a corner edge picking device 4, a corner edge picking device 5, a horizontal pulling device 6, and 2 The position holding device 7, the edging conveyor 8, the roller 9, the loading device 10, the hanging device 11, the advancing / retreating device 12, the centering device 13, and the transport conveyor 14 are the basic components. Details of the rectangular cloth piece unfolding apparatus shown in FIG. 22 are disclosed in detail in Japanese Patent Application Laid-Open No. 2002-113300, and the outline will be described below.

  The supply conveyor 1 sequentially conveys the rounded rectangular cloth pieces (towels) to directly below the hoisting device 2 (reservoir 1a). It should be noted that on the supply conveyor 1, it is only necessary for the worker to manually separate the washed and dried rectangular cloth pieces one by one and place them in a random manner.

  The lifting device 2 is for holding an arbitrary portion of a rounded rectangular cloth piece with a chuck 21 and lifting the cloth piece to a predetermined height.

  The temporary holding device 3 receives a piece of cloth lifted by the lifting device 2 and passes it to the next corner edge picking device 4.

  The corner edge sticking device 4 holds an arbitrary portion of the cloth piece suspended by the temporary holding device 3 with a chuck 41 and drags the cloth piece in the horizontal direction (front-rear direction) on the base plate 43. For this purpose, the corner end of the cloth, which is the end of the cloth, appears on 43.

  The corner trimming device 5 holds the vicinity of the corner of the cloth piece that has been exposed on the base plate 43 by the corner edge picking device 4 with the chuck 51 and holds the vicinity of the corner end of the cloth piece while hanging the cloth piece downward. It is something to support.

  The horizontal pulling device 6 is for horizontally pulling in the horizontal direction (front-rear direction) while holding the vicinity of the upper end corner of the cloth piece hanging down and supported by the chuck 51 of the corner trimming device 5 with the chuck 61. .

  The two-position holding device 7 has two positions, a corner end holding chuck 71 and an intermediate portion holding chuck 72, in the vicinity of the corner end of the cloth piece that has been laid down by the horizontal pulling device 6 and at an appropriate distance from it. It is what you hold. The two-position holding device 7 can move both chucks 71 and 72 up and down with a lifting cylinder 74 and can move both chucks 71 and 72 left and right with a forward and backward cylinder 75.

  The edging conveyor 8 runs continuously from left to right, and places one piece of cloth on the long side of the cloth piece (hanging side) on the cloth piece held by the two-position holding device 6 (each chuck 71, 72). Side edge). At the end portion (right end portion) of the edging conveyor 8, there is provided a platform 82 for stopping the side edge on the leading side of the cloth pieces transferred by the edging conveyor 8. The mounting table 82 is provided with two notches 83 and 83 for allowing two chucks 101 and 102, which will be described later, to enter, at a predetermined interval in the front-rear direction.

  The roller 9 is disposed on the terminal end side of the edging conveyor 8 and is directed toward the running direction (front-rear direction) of the edging conveyor 8. The roller 9 is reversibly rotated by a motor 91.

  The loading device 10 has chucks 101 and 102 that hold two positions with a gap in the long side portion of the cloth piece that appears on the edge conveyor 8 and is held by the chucks 101 and 102. The cloth piece is placed on the roller 9 while being dragged on the roller 9.

  The suspending device 11 has chucks 114 and 115 that hold two positions near the end of one short side edge of the cloth piece placed on the roller 9, and the cloth 114 and 115 hold the cloth. The cloth piece is suspended in the unfolded state while holding the short side edge.

  The advancing / retreating device 12 moves the chucks 114, 115 of the hanging device 11 back and forth.

  The centering device 13 finely adjusts the positions of both chucks 114 and 115 of the suspension device 11 to the left and right, and aligns the cloth pieces suspended by the chucks 114 and 115 with a predetermined position on the transport conveyor 14 (core To take out).

  The conveyor 14 is for receiving the cloth piece suspended by the suspension device 11 and transferring it to the next step (folding step) in a stretched state.

  And the rectangular cloth piece expansion | deployment apparatus of this well-known example (FIG. 22) operate | moves as follows.

  The cloth pieces conveyed by the supply conveyor 1 are sequentially held by the chuck 21 of the lifting device 2 in the storage unit 1a, lifted to a predetermined height, and temporarily held by the temporary holding device 3, the cloth pieces. Is held by the chuck 41 of the corner edge take-out device 4 and dragged in the horizontal direction to cause the cloth piece corner end, which is the end portion of the cloth piece, to appear on the base plate 43 and to appear on the base plate 43. The corner of the cloth piece that has been taken out is held by the chuck 51 of the corner trimming device 5 to support the cloth piece in a suspended state, and the vicinity of the upper end corner portion of the cloth piece that is hanging down is supported by the horizontal pulling device 6. Is held by the chuck 61 and pulled horizontally.

  Next, the chucks 71 and 72 of the two-position holding device 7 are moved downward by the elevating cylinder 74 to hold the two positions of the cloth pieces lying on the chuck, and then the advance / retreat cylinder 75 is reduced. The cloth pieces are moved onto the edge conveyor 8 while the two positions of the cloth pieces are held by both chucks 71 and 72. At this time, the lower side portion of the cloth piece held by both chucks 71 and 72 is in contact with the upper surface of the edging conveyor 8 and the edging conveyor 8 travels to the right side. One lower side is pulled and extended to the terminal end side (right side) of the edging conveyor.

  When both chucks 71 and 72 of the two-position holding device 7 are opened, the entire cloth piece is placed on the edging conveyor 8 and transferred to the conveyor end side, and the cloth piece is transferred from the conveyor end portion onto the platform 82. When it is loaded, it stops there.

  Before and after the leading side edge of the cloth piece is placed on the platform 82, both chucks 101, 102 of the placing device 10 enter into the notches 83, 83 of the platform 82, and both chucks 101 , 102 holds the two positions of the leading edge on the cloth leading side reaching the notches 83, 83.

  Thereafter, the chucks 101 and 102 of the placing device 10 are moved to the right while holding the two positions of the cloth leading side edge, and the cloth piece is dragged in the roller length direction so that the cloth piece straddles the roller 9. Place it in a folded state. At this time, the cloth piece is dragged in the short side direction while being in contact with the upper surface of the roller 9, and the short side direction of the cloth piece is neatly extended in a state where the cloth piece is placed on the roller.

  Next, after holding the two portions near the end of one short side edge of the cloth piece placed on the roller 9 with the chucks 114 and 115 of the suspension device 11, the chucks 114 and 115 are held. The cloth piece can be suspended in the unfolded state by moving the roller 9 back in the feeding direction at the same time it is moved backward by a predetermined distance (separated from the roller 9).

  Then, the chucks 114 and 115 of the suspending device 11 are further moved backward to bring the suspended cloth pieces into contact with the starting end portion of the transport conveyor 14, and then the chuck pieces 114 and 115 are opened to release the cloth pieces. It can be placed on the conveyor 14 in a stretched state. In addition, the rectangular cloth piece developed on the conveyor 14 can be placed on the input conveyor of the folding device as it is.

  In this way, when the rectangular cloth piece developing device shown in FIG. 22 is used, a large number of cloth pieces can be automatically and sequentially expanded into a rectangle.

JP 2002-113300 A

  By the way, in the rectangular cloth piece unfolding apparatus of the known example, the roller 9 on which the cloth piece Y is placed from the edging conveyor 8 is directed rightward from the end portion of the edging conveyor 8 as shown in FIGS. It has been extended. In the rectangular cloth piece unfolding device of this known example, the roller 9 extends rightward from the terminal portion of the edging conveyor 8, so that the loading device 10, the hanging device 11, and the advancing / retreating device 12. The centering device 13 and the conveyor 14 are also installed on the right side from the end of the edge conveyor 8.

  As described above, in the rectangular cloth unfolding device of the above known example, each device (roller 9, loading device 10, hanging device 11, advance / retreat device 12, centering device 13) installed on the right side of the edging conveyor 8. , The conveyor 14, etc.) protrudes to the right from the terminal end of the edging conveyor 8 as shown in FIG. 23, so that a wide width W (W = 80 to 100 cm) protrudes in the factory by the entire developing device. The occupied floor area was large (the surplus floor area was narrowed).

  In view of the problems of the known rectangular cloth unfolding device described above, the present invention can arrange the entire unfolding device compactly in a plan view, and can reduce the occupied floor area of the unfolding device (widen the surplus floor area). An object of the present invention is to provide a rectangular cloth piece unfolding device.

  The present invention has the following configuration as means for solving the above problems.

[Invention of Claim 1 of the Present Application]
The invention of claim 1 of the present application is directed to a developing device for developing a rectangular cloth piece after washing and drying.

  And the rectangular cloth piece expansion | deployment apparatus of this-application Claim 1 has a horizontal drawing apparatus, a 2 position holding | maintenance apparatus, an edge conveyor, an upside down apparatus, a mounting material, a mounting apparatus, and a hanging apparatus. Basic configuration.

  In claim 1 of the present application, as will be described later, one corner end of the cloth piece is held by the horizontal pulling device and the cloth piece lies in a substantially horizontal direction. For example, an operator may manually search for one corner end, or, similarly to the above-described known example, a lifting device, a temporary holding device, a corner end extracting device, and a corner end removing device are used. Thus, one corner end may be automatically made to appear from the rounded rectangular cloth piece.

  And each apparatus in the case of using the said lifting apparatus, a temporary holding apparatus, a corner | angular edge extraction apparatus, and a corner | angular edge removal apparatus functions as follows, respectively.

  The lifting device is for holding an arbitrary portion of a rounded rectangular cloth piece and lifting the cloth piece to a predetermined height.

  The corner edge sticking device holds an arbitrary part of the cloth piece lifted by the lifting device and drags the cloth piece horizontally, for example, on the base plate, to reveal the cloth piece corner end which is the terminal portion of the cloth piece. It is for making it happen.

  A corner trimming device is a device that holds, for example, the vicinity of a corner of a cloth piece that has been exposed on a base plate by a corner edge picking device, and supports the cloth piece in a suspended state while holding the vicinity of the corner end of the cloth piece. is there.

  The horizontal pulling device is for laying a piece of cloth supported by the corner trimming device in a substantially horizontal direction.

  The two-position holding device holds two positions, ie, near the corner end of the cloth piece laid down by the horizontal pulling device and at a position separated from it by an appropriate distance.

  The edging conveyor is for placing a piece of cloth held by a two-position holding device to reveal one side edge of the cloth piece long side.

  The upside down device includes a chuck that holds a predetermined length range at the trailing edge of the cloth piece that has appeared on the edging conveyor at the end of the edging conveyor, and a circuit that rotates the chuck up and down. A movement device is provided, and the cloth piece is displaced to a downward hanging position while holding a predetermined length range of the cloth piece leading side edge by the chuck. In addition, the chuck of this upside down device may be two chucks that respectively hold the vicinity of both ends of a predetermined length range with an interval at the cloth leading side edge, or one chuck that can hold the predetermined length range. It may be.

  The placing material is placed in a state where the cloth piece is straddled, and it is preferable to use, for example, a roller or a vertically running belt. This placing material is located in the polymerization position immediately below the edging conveyor and is installed in the running direction of the edging conveyor.

  The placing device has a chuck that receives a holding portion of the cloth piece held by the chuck of the upside down device and hangs downward, and receives the predetermined length range of the side edge of the cloth piece by the chuck. The piece is placed on the placing material while being dragged on the placing material. In addition, the chuck of this placing device may be two chucks that respectively hold the vicinity of both ends of the predetermined length range of the leading edge of the cloth piece held by the chuck of the upside down device, or the predetermined length. One chuck that can maintain the range may be used.

  The hanging device has a chuck for holding two positions closer to each end of one short side edge of the cloth piece placed on the placing material, and holds the cloth piece short side edge by the chuck. Then, the cloth piece is suspended in the unfolded state. In this case, the chuck of the hanging device may be two chucks that hold two places on the short side edge of the cloth piece, or may be one chuck that can hold almost the entire length of the short side edge.

  In the rectangular cloth piece developing device according to the first aspect, the cloth pieces can be automatically expanded into a square shape by the above-described devices. In the following steps, the case where the lifting device, the temporary holding device, the corner edge extracting device, and the corner edge removing device are used will be described.

  First, an arbitrary portion of a rectangular cloth piece rolled up by a lifting device is held and the cloth piece is lifted to a predetermined height.

  Next, an arbitrary portion of the lifted cloth piece is held by a corner edge sticking device and dragged horizontally, for example, on a base plate. At this time, the rectangular cloth piece dragged in the horizontal direction has one corner end appearing at the rear end thereof.

  Next, the vicinity of the corner of the cloth piece, which is the terminal portion of the cloth piece dragged in the horizontal direction, is held by a corner trimming device, and the cloth piece is hung down.

  Next, the vicinity of the upper corner end of the suspended cloth piece is held by the chuck of the horizontal pulling device, and the cloth piece is laid in a substantially horizontal direction. In this case, the cloth piece can be laid down by holding the upper end portion of the cloth piece from the suspended state with the chuck of the horizontal pulling device and dragging the cloth piece in a substantially horizontal direction, for example. When the cloth piece is laid down, the long side direction of the cloth piece is long.

  By the way, in this application, in order to make one corner end of the cloth piece appear, an operator can also search manually, but in that case, the lifting device, the temporary holding device, and the corner end device are provided. Omitted, the corner of the cloth piece searched for manually may be held by the chuck of the corner trimming device. In another method, the corner edge removing device may be omitted, and the corner edge of the cloth piece manually searched may be directly held by the chuck of the lateral drawing device.

  Next, on the edge conveyor on which the cloth piece in the lying state is lifted while being held by the two-position holding device in the vicinity of the corner end of the cloth piece and an appropriate distance away from it, and traveling on the hanging part of the cloth piece Put it on. At this time, the hanging part of the cloth piece held by the two-position holding device is brought into sliding contact with the running edging conveyor, and the hanging part of the cloth piece is expanded in a triangular shape on the edging conveyor. Thereafter, each chuck of the two-position holding device is opened, and the entire cloth piece is placed on the edging conveyor and fed later. At this time, the length range of a part of the cloth piece leading side edge is linear. Has been developed.

  Next, after holding the predetermined length range of the leading edge of the cloth piece by the chuck of the upside down device at the end portion of the edging conveyor, the chuck is rotated downward to chuck the predetermined length range of the cloth piece. The cloth piece is displaced to the downward hanging position while being held at.

  Next, by receiving the predetermined length range of the cloth side edge held by the chuck of the upside down device by the chuck of the placing device, and moving the chuck in the direction opposite to the running direction of the edging conveyor, The cloth piece is dragged in the length direction of the upper surface of the placing material, and the cloth piece is placed on the placing material. In this case, when a roller or a vertically traveling belt is used as the placing material, the cloth piece may be placed in a state where the cloth piece straddles the placing material.

  Next, the cloth piece placed on the placing material is held by a lifting device at two positions (may be almost the entire length of the short side edge) of one short side edge of the cloth piece. Suspend in the unfolded state. In this case, the cloth piece is detached from the placing material by pulling the holding portion on the short side away from the placing material. At this time, the cloth piece is placed on the placing material by rotating the placing material in the cloth piece feeding direction. Can be removed smoothly.

  As described above, when the rectangular cloth piece is hung in the state of being held by the lifting device at two positions near the short side, the cloth piece develops into a rectangle by its own weight. And the expanded rectangular cloth piece can be put on the conveyance conveyor to the folding apparatus side as it is.

  By the way, in the rectangular cloth piece unfolding device according to claim 1 of the present invention, a placing material (for example, a roller or a vertically running belt) for straddling the cloth piece is placed at the superposition position immediately below the edge conveyor. Although it is installed toward the running direction of the take-out conveyor, in this way, the loading material can be set on the floor surface at the same position as the edge conveyer, and the occupied floor area of the entire developing device is reduced. be able to.

  Further, in the rectangular cloth piece unfolding device according to claim 1 of the present invention, the predetermined length range of the cloth piece leading side edge can be hung downward by the upside down device at the end portion of the edging conveyor. Even when the material is installed at the polymerization position directly below the edging conveyor, the cloth piece can be smoothly transferred from the edging conveyor side to the hanging material side.

[Invention of claim 2 of the present application]
According to the second aspect of the present invention, in the rectangular cloth piece unfolding apparatus according to the first aspect, the upside down apparatus holds the predetermined length range of the cloth piece side edge with the chuck, and then the chuck is lowered at a high speed by the rotating device. The cloth is held by the chuck to generate a winding function.

  As described above, when the chuck holding the predetermined length range of the cloth piece side edge is rotated downward at a high speed by the rotating device, the cloth piece held by the chuck receives air resistance (the cloth piece is rolled up). The entangled portion and the heel portion of the cloth piece are easily stretched, and the cloth piece can then be placed on the placing material in a stretched state.

[Invention of claim 3 of the present application]
In the invention of claim 3 of the present application, in the rectangular cloth piece unfolding device according to claim 1 or 2, when the cloth piece is hung downward while holding the predetermined length range of the cloth piece side edge with the chuck of the upside down device, Air is blown by an air blowing device to the hanging portion of the cloth piece.

  As described above, when air is blown from the air blowing device to the cloth piece hanging portion when the cloth piece is suspended while holding the predetermined length range of the cloth piece side edge with the chuck of the upside down device, the entangled portion of the cloth piece It becomes easy to spread the heel and the heel portion, and then the cloth piece can be placed on the placing material in a stretched state.

[Effect of the invention of claim 1 of the present application]
In the rectangular cloth piece unfolding device according to the first aspect of the present invention, the rectangular cloth piece is suspended in the unfolded state from the step of holding one corner end of the rectangular cloth piece with the chuck of the horizontal pulling device and causing the cloth piece to lie down. Since the process up to the final process can be performed automatically, no manual work is required for the work for spreading the cloth piece.

  According to the first aspect of the present invention, a placing material (for example, a roller or a vertically traveling belt) for placing a piece of cloth is placed at a polymerization position directly below the edging conveyor and directed toward the running direction of the edging conveyor. Since it is installed, the loading material can be installed on the floor at the same position as the edging conveyor. Therefore, the entire developing device can be made compact in plan view, and the occupied floor area of the entire developing device can be reduced (the surplus floor area can be increased).

  Further, in the invention of claim 1, the cloth piece can be hung downward by holding the predetermined length range of the cloth leading side edge with the upside down device at the terminal portion of the edging conveyor. Even when the placing material is installed at the polymerization position immediately below the edging conveyor, the cloth piece can be smoothly transferred from the edging conveyor side to the placing material side.

[Effect of the invention of claim 2 of the present application]
According to the second aspect of the present invention, in the rectangular cloth piece unfolding device according to the first aspect, as a vertical reversing device, a predetermined length range of the cloth piece side edge is held by the chuck, and then the chuck is lowered at a high speed by the rotating device. Therefore, it is possible to generate a function of air resistance against the cloth piece held by the chuck.

  Therefore, in the invention of claim 2, in addition to the effect of claim 1, the entangled portion and the heel portion of the cloth piece are easily stretched, and the cloth piece can be placed on the placing material in a stretched state. There is an effect. In addition, when the cloth piece is placed on the placing material in a stretched state, it can be supported in a state where the cloth piece is neatly spread in the subsequent hanging process (hanging device) (the stretching accuracy is improved). .

[Effect of the invention of claim 3 of the present application]
In the invention of claim 3 of the present application, in the rectangular cloth piece unfolding device according to claim 1 or 2, when the cloth piece is hung downward while holding the predetermined length range of the cloth piece side edge with the chuck of the upside down device, Since air is blown to the hanging portion of the cloth piece by the air blowing device, the entangled portion and the heel portion of the cloth piece are easily stretched.

  Therefore, in the invention of claim 3, in addition to the effect of claim 1 or 2, the entangled portion and the heel portion of the cloth piece are more easily stretched, and the cloth piece is placed on the placing material in the stretched state. There is an effect that can be. In this case as well, it is possible to support the cloth piece in a state in which it is neatly stretched in the subsequent suspending step (suspending device) (the stretching accuracy is improved).

It is a whole perspective view of the rectangular cloth piece expansion | deployment apparatus of an Example of this application. It is an II arrow directional view in the rectangular cloth piece expansion | deployment apparatus of FIG. FIG. 3 is a view taken along arrow III in the rectangular cloth piece unfolding device of FIG. 1. It is an expansion perspective view of the supply conveyor of the expansion | deployment apparatus of FIG. 1, a lifting device, and a temporary holding apparatus part. FIG. 5 is a state change diagram from FIG. 4 including a corner end device. FIG. 6 is a state change diagram from FIG. 5. FIG. 7 is a state change diagram from FIG. 6 including a corner trimming device and an edge conveyor. FIG. 8 is a state change view from FIG. 7 including a horizontal pulling device and a two-position holding device. It is a state change figure from FIG. FIG. 10 is a state change diagram from FIG. 9. It is a state change figure from FIG. It is a state change figure from FIG. It is a state change figure from FIG. It is a state change figure from FIG. It is a state change figure from Drawing 14 containing a roller (mounting material) and a mounting device. It is a state change figure from FIG. It is a state change figure from FIG. It is a state change figure from FIG. It is a state change figure from FIG. FIG. 20 is a state change diagram from FIG. 19. It is the modification of the expansion | deployment apparatus of FIG. 1 which employ | adopted the traveling belt as a mounting material. It is a whole perspective view of a well-known rectangular cloth piece expansion | deployment apparatus. It is XXIII arrow line view of the expansion | deployment apparatus of FIG.

  The rectangular cloth piece unfolding device of the embodiment of the present application will be described with reference to FIGS. 1 to 22. FIG. 1 shows an overall view of the rectangular cloth piece unfolding device of this embodiment, and FIGS. FIG. 22 shows a modified example of FIG. 1. In the following description, the front, rear, left, and right directions indicate the respective directions in the state of FIG.

The rectangular cloth piece unfolding device in FIG.
A supply conveyor 1 for supplying the rectangular cloth pieces Y after washing and drying to predetermined positions to be sequentially processed (FIGS. 1 and 4);
A lifting device 2 for lifting the cloth piece Y supplied to a predetermined position by the supply conveyor 1 to a predetermined height (FIGS. 1 and 4);
A temporary holding device 3 that temporarily receives and temporarily holds the cloth piece Y lifted by the lifting device 2 in the lifted state (FIGS. 1, 4, and 5);
An arbitrary portion of the cloth piece Y suspended by the temporary holding device 3 is held, and the cloth piece Y is dragged in the horizontal direction on the base plate 43, so that the cloth piece corner end Ya which is a terminal portion of the cloth piece Y is obtained. A corner edge sticking device 4 (FIGS. 1, 5 to 7),
A corner edge picking device 5 that holds the vicinity of the cloth piece corner end Ya appearing on the base plate 43 and supports the cloth piece Y hanging down by holding the vicinity of the cloth piece corner end Ya (see FIGS. 3, FIG. 7, FIG. 8),
A horizontal pulling device 6 that lays the cloth piece Y supported by the corner trimming device 5 in a substantially horizontal direction (FIGS. 1 to 3, 8, and 9),
A two-position holding device 7 that holds two positions at the same height near the corner end Ya of the cloth piece Y in a lying state and at an appropriate distance from the corner end Ya (FIGS. 1 to 3 and FIGS. 8 to 14); ,
An edging conveyor 8 on which the cloth piece Y held by the two-position holding device 7 can be placed and one side edge Yb of the cloth piece long side is exposed (FIGS. 1 to 3 and FIGS. 8 to 15);
An air blowing device 15 installed in the edging conveyor 8 part (FIGS. 1-2, 8-15),
A roller 9 directly below the edging conveyor 8 and installed in the running direction of the edging conveyor 8 (FIGS. 1 to 3, 15 to 20),
Each end of the edge conveyor 8 has chucks 161 and 162 that hold the two positions of the cloth leading side edge Yb edged on the edge conveyor 8, and the chucks 161 and 162 are moved up and down. An upside down device 16 for rotating the arc (FIGS. 1 to 3 and FIGS. 12 to 15);
An air blowing device 17 that blows air B (FIG. 2) against the cloth Y that is arc-turned downward by the upside down device 16 (FIGS. 1 to 3, FIG. 15);
It has two chucks 101 and 102 that receive cloth pieces from the respective chucks 161 and 162 of the upside down device 15 and hold the two positions of the long piece side Yb of the cloth piece, and the rollers while dragging the cloth piece Y on the roller 9 9, a mounting device 10 for mounting on (FIGS. 1-3, 15-17),
Each piece of cloth Y placed on the roller 9 has chucks 114 and 115 for holding two positions near one end of the short side edge Yc, and the short side of the cloth piece is provided by the chucks 114 and 115. A hanging device 11 that holds the edge Yc and can hang the cloth piece Y in the unfolded state (FIGS. 1, 3, 16 to 20),
The forward movement position (FIGS. 16 to 17) for receiving the short side edge Yc of the cloth piece Y placed on the roller 9 and the cloth piece Y held by the suspension apparatus 11 on the next process side. An advancing / retreating device 12 for moving back and forth between the retreat position (FIGS. 3 and 19) to be transferred to (on the conveyor 14) (FIGS. 1, 3, and 16 to 20);
A centering device 13 for aligning the unfolded fabric piece Y suspended by the suspension device 11 with the center of the conveyor 14 (FIGS. 1, 13, and 20);
A transport conveyor 14 (FIGS. 1, 3, 15 to 20) for receiving the unfolded cloth piece Y from the suspension device 11 and transporting it to the next process side (folding device side);
And is configured. Each of these devices (devices 1 to 17) is installed in a frame frame (machine frame) (not shown).

  The supply conveyor 1 (FIGS. 1 and 4) continuously runs during operation, and a rectangular piece of cloth Y that has been rounded after being washed and dried is dropped onto the supply conveyor 1. At the end of the supply conveyor 1, there is a storage section 1a, and the cloth pieces Y conveyed by the supply conveyor 1 are temporarily stored in the storage section 1a sequentially.

  The lifting device 2 (FIGS. 1 and 4) includes a chuck 21 that holds an arbitrary portion of the cloth piece Y and a lifting device 22 that lifts and lowers the chuck 21. When the lifting device 22 moves the chuck 21 to the lowest position (shown by the solid line in FIG. 4), the lifting device 22 contacts the cloth piece Y stored in the storage portion 1a. The contact portion of the cloth piece Y is held by the chuck 21. In addition, the cloth piece holding part by the chuck 21 may be an arbitrary place. When the lifting device 22 is lifted, the chuck moves up to the height indicated by the chain line (reference numeral 21 ') in FIG. 4 while holding the cloth piece Y by the chuck 21, and the single cloth piece Y is suspended. It comes to support in. Note that the upward movement position of the chuck 21 (the height of the reference numeral 21 'shown by a chain line in FIG. 4) is set in advance at a fixed position.

  The temporary holding device 3 (FIGS. 1, 4 to 5) includes a chuck 31 and an advancing / retracting device (extensible cylinder) 32 that moves the chuck 31 back and forth in the front-rear direction. In the temporary holding device 3, when the chuck 21 of the lifting device 2 is moved up most (or when the cloth piece Y at the highest movement position is detected by the detector), the telescopic cylinder 32 is extended, and the chuck 31 is moved as shown in FIG. 2 is advanced to a position indicated by a chain line (reference numeral 31 '), and the vicinity of the upper end of the cloth piece Y lifted by the lifting device 2 can be received by the chuck 31 of the temporary holding device 3 (at that time, the lifting device 2 side) Thereafter, the telescopic cylinder 32 is contracted, and the cloth Y is suspended by the chuck 31 as shown in FIG. In most cases, one corner end of the cloth piece appears at the lowermost end (symbol Ya in FIG. 5) of the cloth piece Y suspended from the chuck 31.

  As shown in FIG. 5, the corner edge sticking device 4 (FIGS. 5 to 7) includes a chuck 41 that receives the cloth piece Y suspended and held at the retracted position by the chuck 31 of the temporary holding device 3, and the chuck 41. An advancing / retreating device (expandable cylinder) 42 for moving back and forth, a base plate 43 for receiving the cloth piece Y, and a detector (photoelectric tube) for detecting a terminal end (corner end Ya) of the cloth piece Y dragged on the base plate 43 44, 44, a pressing plate 48 for pressing the vicinity of the end portion (corner end Ya) of the cloth piece Y on the base plate 43, a telescopic cylinder 49 for moving the pressing plate 48 up and down, and a pair of upper and lower sandwiching rollers 45, 46 And an extendable cylinder 47 that opens and closes the upper roller 45 with respect to the lower roller 46. Between the rear end edge of the base plate 43 and the lower roller (fixed position roller) 46, there is a space where a chuck 51 of the corner trimming device 5 described later enters.

  And this corner | angular_edge extraction apparatus 4 operate | moves as follows. First, as shown in FIG. 5, when the chuck 31 of the temporary holding device 3 is operated to the retracted position in the cloth holding state, the telescopic cylinder 42 is extended and the chuck 41 is advanced, and the temporary holding device 3 is moved by the chuck 41. The cloth piece Y suspended from the chuck 31 is held (at this time, the chuck 31 on the temporary holding device 3 side is opened), and then the telescopic cylinder 42 is reduced to hold the cloth piece Y while holding the cloth piece Y. fall back. At that time, the cloth piece Y is dragged on the base plate 43, and the upper roller 45 is closed (reference numeral 45 'in FIG. 6) when the chuck 41 passes rearwardly through the sandwiching portions of the upper and lower sandwiching rollers 45 and 46. The chuck 41 is opened, the upper and lower rollers 45 and 46 are rotated in the direction of feeding the cloth piece, and the end portion (the corner end Ya) of the cloth piece Y dragged on the base plate 43 is detected by the detectors 44 and 44. Then, the rotation of both rollers 45 and 46 is stopped, the telescopic cylinder 47 is extended, and the vicinity of the cloth end portion Ya is pressed onto the base plate 43 by the presser plate 48 (state of reference numeral 48 'in FIG. 6). Thereafter, as shown in FIG. 7, the upper roller 45 moves up to the original open position. In the state of FIG. 7, the vicinity of the end portion of the cloth piece Y lies between the presser plate 48 (and the rear end edge of the base plate 43) and the lower roller 46.

  In this embodiment, the cloth piece Y lifted by the lifting device 2 is temporarily held by the temporary holding device 3 and then is held and changed by the chuck 41 of the corner edge extracting device 4. Then, the temporary holding device 3 may be omitted, and the cloth piece Y lifted by the lifting device 2 may be directly held by the chuck 41 of the corner edge sticking device 4.

  The corner trimming device 5 (FIGS. 7 and 8) includes a chuck 51 and an advancing / retracting device (extensible cylinder) 52 for advancing and retracting the chuck 51 in the left-right direction. Then, the corner chamfering device 5 is provided when the vicinity of the end portion (corner end Ya) of the cloth piece Y is held between the base plate 43 and the lower roller 46 of the corner end ejecting device 4 as shown in FIG. The telescopic cylinder 52 extends and the chuck 51 advances to the left as indicated by the chain line (reference numeral 51 '), and the chuck 51' holds the vicinity of the cloth corner end Ya. Thereafter, the presser plate 48 of the corner edge take-out device 4 moves upward (releases the presser), the telescopic cylinder 52 contracts, and the cloth piece Y is held near the cloth piece corner end Ya by the chuck 51 as shown in FIG. Operates to retreat to the right while hanging down.

  A base plate 53 is provided at a position near the lower rear side of the chuck 51 in a state where the telescopic cylinder 52 of the corner trimming device 5 is contracted. This base plate 53 is used to support the end side of the cloth piece Y when it is moved to the rear side by receiving the vicinity of the upper end part (corner end Ya) of the cloth piece by the horizontal pulling device 6 described below. It is.

  The horizontal pulling device 6 (FIGS. 8 and 9) includes a chuck 61 and an advancing / retracting device (extensible cylinder) 62 for moving the chuck 61 back and forth in the front-rear direction. 8, when the chuck 51 of the corner trimming device 5 moves backward while holding the cloth piece Y as shown in FIG. Moves forward as indicated by the chain line (reference numeral 61 '), and the chuck 61' holds the vicinity of the upper end portion (corner end Ya) of the cloth piece. Thereafter, the chuck 51 of the corner trimming device 5 is opened, the telescopic cylinder 62 is contracted, and the cloth piece Y is held on the base plate 53 by holding the vicinity of the cloth piece corner end Ya with the chuck 61 as shown in FIG. Move backwards while dragging. At this time, the cloth piece Y lies in a substantially horizontal direction between the chuck 61 and the base plate 53 in the retracted position, as shown in FIG. 9, and the chuck 61 holds one corner end Ya of the cloth piece. Therefore, the side edge Yb on the long side hangs down in a triangular shape.

  In the vicinity of the right end portion of the base plate 53, an edging conveyor 8 driven by a motor 81 is installed. As shown in FIGS. 8 to 15, the edging conveyor 8 is formed by juxtaposing a plurality (seven in the illustrated example) of thin belts 8 a, 8 a... With narrow gaps 8 b, 8 b. is there. The edging conveyor 8 runs continuously in the right direction. The front edge (starting end) of the edging conveyor 8 is positioned slightly to the right of the cloth piece Y laid down by the horizontal drawing device 6.

  A narrow plate 84 is installed at the end of the edging conveyor 8. The plate 84 is provided with two detectors 85 and 85 for detecting the leading side edge Yb of the cloth piece Y transferred on the edge conveyor 8. Each of the detectors 85 and 85 detects the cloth leading side edge Yb and transmits a signal for closing each chuck 161 and 162 of the upside down device 16 described later to a controller (not shown). It is. The cloth piece Y transported on the edging conveyor 8 can easily get over the plate 84 due to the movement inertia.

  The two-position holding device 7 (FIGS. 8 to 13) includes two chucks (a corner end holding chuck 71 and an intermediate portion holding chuck 72) attached to the connecting plate 73 at a predetermined interval in the front-rear direction, and the chucks 71 and 72. And an advancing / retracting cylinder 75 for advancing and retracting the chucks 71 and 72 left and right together with the elevating cylinder 74.

  As shown in FIG. 9, the corner end holding chuck 71 is in a position capable of holding the rear end (corner end) Ya of the cloth piece Y laid down by the horizontal pulling device 6, and the intermediate portion holding chuck 72 is It is in a position where it can hold an appropriate position near the front side of the cloth piece Y that has been laid down. In this embodiment, the gripping piece of the intermediate part holding chuck 72 is longer than the gripping piece of the corner end holding chuck 71.

  In the contracted state, the elevating cylinder 74 stands by at a position above the cloth piece Y on which the chucks 71 and 72 are laid down (in the state shown by the solid line in FIG. 9), and in the extended state, the chucks 71 and 72 are in FIG. As shown by chain lines (reference numerals 71 'and 72'), the cloth Y is laid down to a position where the upper edge of the cloth piece Y can be held.

  The forward / backward cylinder 75 is divided into 3 in the most extended state shown in FIGS. 8 and 9, the most contracted state shown in FIG. 10, and the small extended state (FIGS. 11 to 14) slightly extended from the most contracted state. It is designed to expand and contract in one state. 8 and 9, the advancing / retreating cylinder 75 is located immediately above the cloth piece Y that is laid down by the horizontal pulling device 6 in the maximum extension state shown in FIGS. In the most contracted state and the small extended state shown in FIGS. 11 to 14, the chucks 71 and 72 are positioned on an edge conveyor 8 described later. The forward / backward cylinder 75 operates so as to immediately extend by a small length as shown in FIG. 11 after being rapidly reduced from the most extended state (FIGS. 8 and 9) to the most contracted state (FIG. 10). To do. That is, when the advancing / retreating cylinder 75 is in the fully extended state, the chucks 71 and 72 are in the positions indicated by the solid lines in FIG. 2, and the lifting cylinder 74 extends to hold the two positions of the cloth piece lying on both chucks 71 and 72. While the cylinder 74 is contracted, the advance / retreat cylinder 75 is contracted at a maximum speed to move each chuck at a high speed to the positions of 71 'and 72' in FIG. The positions are returned to the positions 71 "and 72".

  The following functions occur during the operation of the two-position holding device 7. That is, as shown by the chain line in FIG. 9, after the two positions of the upper side of the cloth piece are held by both chucks 71 'and 72', both chucks are moved to the position of FIG. As the air resistance is generated, a spreading action is exerted on the hanging part of the cloth piece, and the advancing / retreating cylinder 75 is slightly extended immediately after the advancing / retreating cylinder 75 is contracted as shown in FIG. appear. Therefore, even if there are entanglements or wrinkles in the sagging portion of the cloth piece, a function that the sagging portion can be neatly expanded in a triangular shape occurs (a curling effect occurs).

  Further, an air blow device 15 is installed between the upper and lower belts of the edging conveyor 8 at a position closer to the starting end. In the air blow device 15, nozzles 151, 151,... Are arranged at positions corresponding to the gaps 8Bb, 8b,. As shown by an arrow A in FIG. 2, air is blown from the nozzles 151, 151... Obliquely upward on the conveyor terminal side from the lower surface of the upper surface running portion of the edge conveyor 8.

  The air blow device 15 holds the cloth Y at the two positions by the chucks 71 'and 72' of the two-position holding device 7 as shown in FIG. Is moved to the edge conveyor 8 (or while each chuck 71, 72 is returned to the conveyor start side by a small length as shown in FIG. 11), the cloth pieces from the nozzles 151, 151,. Air A (FIG. 2) is blown out toward the sagging portion. In this way, when the air A (FIG. 2) from the air blowing device 15 is blown onto the cloth sag, the cloth sag hangs in addition to the function of extending the cloth sag by the operation of the two-position holding device 7. Can be further extended.

  By the way, the two-position holding device 7 holds the two positions of the cloth piece Y laid down by the horizontal pulling apparatus 6 with the chucks 71 and 72 (in the state shown by the chain line in FIG. 9). Although it is placed on the edging conveyor 8, as shown in FIG. 11, when the two positions of the cloth piece Y are held by both chucks 71 and 72 and moved onto the edging conveyor 8, the edging conveyor 8 The cloth piece lower side portion (side edge) Yb closer to the corner end holding chuck 71 that is in sliding contact is considerably inclined with respect to the width direction of the edging conveyor 8 (horizontal orthogonal direction to the conveyor running direction). If both chucks 71 and 72 are simultaneously opened as they are, the cloth piece leading side edge Yb is conveyed while being inclined on the edging conveyor 8, and in the next step, the cloth pieces are advanced by two chucks (161, 162). There arises a problem that the holding depths when holding the two positions of the side edge Yb are different.

  Therefore, in this embodiment, the opening timing of the chucks 71 and 72 of the two-position holding device 7 is set to a predetermined length on the side closer to the corner end holding chuck 71 at the leading side edge Yb of the cloth piece placed on the edging conveyor 8. The corner end holding chuck 71 is opened with a predetermined time delay from the intermediate holding chuck 72 so that a length range (for example, a length range of 25 to 35 cm) appears substantially parallel to the width direction of the edge conveyor 8. I am doing so. The opening timing (time difference) of the chucks 71 and 72 is set in relation to the traveling speed of the edging conveyor 8. If the traveling speed of the edging conveyor 8 is 20 m / min, for example, the intermediate timing The opening delay time of the corner end holding chuck 71 after the part holding chuck 72 is opened is set in a range of about 0.5 to 1.0 seconds, for example.

  The specific opening timing of both chucks 71 and 72 in the two-position holding device 7 will be described with reference to FIGS. 11 to 13. As shown in FIG. 11, the two positions of the cloth piece Y are held by both chucks 71 and 72. In the state of being moved onto the edging conveyor 8, the side edge Yb of the hanging portion that is in contact with the edging conveyor 8 is considerably inclined. In this state, since the two positions where the cloth piece Y is separated are held by the chucks 71 and 72, even if the lower part of the cloth piece hanging portion is in contact with the edge conveyor 8, the side edge Yb The tilt state (triangle state) does not change. Then, when only the intermediate portion holding chuck 72 is opened from the state of FIG. 11, the cloth piece non-holding portion is exposed while the cloth piece Y is held at one point of the corner end holding chuck 71 as shown in FIG. It falls on the conveyor 8. Then, since the edging conveyor 8 is running, the portion held by the corner end holding chuck 71 on the cloth leading side edge Yb is left as it is, and the other portion is transferred to the conveyor end side, as shown in FIG. There is a point in time when the leading edge Yb of the cloth piece Y held by the corner end holding chuck 71 becomes substantially parallel to the conveyor width direction as indicated by the symbol Yb (when the intermediate portion holding chuck 72 is released in time). 0.5 to 1.0 seconds after). When the corner end holding chuck 71 is opened when the cloth piece leading side edge Yb is substantially parallel to the conveyor width direction, the entire cloth piece is placed on the edge conveyor 8 as indicated by reference numeral Y 'in FIG. A predetermined length range (for example, 25 to 35 cm) closer to the rear side of the cloth leading side edge Yb is transferred to the conveyor end side in a state of being substantially parallel to the conveyor width direction. The cloth piece Y transferred on the edging conveyor 8 travels over the plate 84 provided at the end of the conveyor.

  As shown in FIGS. 1 to 3 and 12 to 15, the front edge Yb of the cloth piece Y transferred by the edging conveyor 8 is held at the terminal end of the edging conveyor 8 and inverted downward. An upside down device 16 is provided. The upside down device 16 is provided on the edge conveyor 8 because a placing material (roller) 9 on which the cloth piece Y is placed is installed at a polymerization position directly below the edge conveyor 8 as described later. Is used to transfer the cloth piece Y to the roller 9 side below the edging conveyor.

  The vertical reversing device 16 has two chucks 161 and 162 at two positions with a predetermined small interval (for example, an interval of 10 to 15 cm) in the front and rear, and the chucks 161 and 162 are pivoted up and down. A rotating cylinder 165 is provided. The chucks 161 and 162 each have a base end portion of a telescopic portion having an appropriate length (for example, 10 cm) fixed to a common shaft 166, and the shaft 166 is connected to a rotating cylinder 165 via a link 167. It can be turned upside down by turning. The rotating cylinder 165 is a rotating device in the claims.

  The upside down device 16 operates as follows. That is, until the cloth leading side edge Yb transferred on the edge conveyor 8 reaches the detectors 85 and 85 of the plate 84, the chucks 161 and 162 are moved as shown in FIGS. As shown in FIG. 2 (solid line), the front edge Yb of the cloth piece Y that is being transported on the edging conveyor 8 is waiting in a substantially laterally (slightly upwardly inclined) posture at a position immediately below the plate 84. 84, when the detectors 85 and 85 are reached, a signal from the detectors 85 and 85 is passed through a predetermined timer (after each of the chucks 161 and 162 in which the cloth leading edge Yb is in an open state as shown in FIG. The chucks 16 and 162 are closed (at the time of entering the gripping portion) (reference numerals 161 'and 162' in FIG. 14), and the respective cloth leading side edges Yb are held by the chucks 161 and 162, respectively. Immediately thereafter, the rotating cylinder 165 contracts, and the chucks 161 and 162 arc downward at high speed while holding the cloth edge Yb by the chucks 161 and 162, respectively. 2 in the downward posture shown by reference numerals 161 'and 162'). At this time, the cloth pieces Y held by the chucks 161 and 162 are rapidly swung down (the rolling action occurs in the short side direction of the cloth pieces) and hangs down as indicated by the symbol Y in FIG. It is done. And each chuck | zipper 161,162 (FIG. 15) holding the cloth piece side edge Yb in a downward attitude | position has passed each holding | maintenance part of the cloth piece side edge Yb to each chuck | zipper 101,102 of the mounting apparatus 10 mentioned later. And immediately after that, the arc is turned upward and returned to the original standby position.

  Air B (FIG. 2) is blown toward the cloth piece Y from the left side of the cloth piece Y swinged downward by the chucks 161 and 162 at positions below the chucks 161 and 162 of the upside down device 16. An air blowing device 17 (FIGS. 1 to 3 and FIG. 15) is provided. Then, the air blow device 17 is configured such that when the cloth piece Y is shaken down by the chucks 161 and 162 of the upside down device 16 as shown in FIG. By spraying 2), the entangled portion or wrinkles of the cloth piece Y can be removed.

  Immediately below the edging conveyor 8 are a roller (being a placing material in claims) 9 and a placing device 10 for placing the cloth piece Y on the roller 9. 10 is on the upper side and the roller 9 is on the lower side (see FIGS. 1 to 3 and FIGS. 15 to 18).

  The edging conveyor 8, the loading device 10, and the rollers 9 are arranged in a state where they overlap each other. Therefore, the installation space (installation floor area) of the edging conveyor 8, the roller 9, and the loading device 10 can be reduced.

  The roller 9 is installed with its rotation axis directed in the same direction as the running direction (left-right direction) of the edging conveyor 8. Further, the roller 9 is a roller in which the divided rollers 9a and 9b divided into the left and right parts are coaxially arranged. The divided rollers 9a and 9b are individually and reversibly driven by motors 91 and 92, respectively. It can be rotated.

  The placing device 10 has two chucks 101 and 102 that receive the two positions of the cloth side edge Yb from the chucks 161 and 162 of the upside down device 16. It can be moved in the length direction of the roller 9. The chucks 101 and 102 are installed at a predetermined interval (slightly wider than the interval between both chucks 161 and 162 of the vertical reversing device 16) at the right end of the advancing / retreating platform 100 that is moved back and forth by the advancing / retracting cylinder 103. . In this embodiment, a rodless cylinder is used as the advance / retreat cylinder 103.

  The chucks 101 and 102 of the placing device 10 are arranged so that the cloth side edges Yb are arranged with the chucks 161 and 162 of the upside-down reversing device 16 facing downward (positions 161 ′ and 162 ′ in FIG. 2 or FIG. 15). When holding, each holding part (two places) of the cloth piece side edge Yb is received. The chucks 101 and 102 of the mounting device 10 used in this embodiment have a structure in which the rod is projected and retracted so that the cloth piece side edge Yb can be sandwiched between the rod tip and the contact plate in front of the rod. Things are used.

  The placing device 10 operates as follows. That is, the chucks 101 and 102 of the loading device 10 are arranged so that the advancing and retreating cylinder 103 is not moved when the chucks 161 and 162 of the upside down device 16 are in the upward movement positions (positions 161 and 162 shown by solid lines in FIG. 2). It stands by at a position slightly to the left of the right stroke end position (positions 101 and 102 in FIGS. 2 and 15). When the chucks 161 and 162 of the vertical reversing device 16 hold the cloth piece side edge Yb and rotate downward, the advance / retreat platform 100 is advanced (moved right) by the advance / retreat cylinder 103 and the chucks 101, 102 are moved. 2 and FIG. 15 are moved forward to the positions indicated by reference numerals 101 ′ and 102 ′, and the two pieces of the cloth piece side edges Yb held by the chucks 161 and 162 of the upside down device 16 are placed on the chucks 101 of the loading device 10. , 102 (At this time, the chucks 161 and 162 of the upside down device 16 are immediately opened upward after being opened). Subsequently, the advancing / retreating platform 100 is retracted to the left stroke end position (the position indicated by reference numeral 100 ″ in FIG. 2 and the solid line illustrated in FIG. 16) by the advancing / retreating cylinder 103 while holding the cloth edge Yb by the chucks 101, 102 (left). At this time, the cloth piece Y held by the chucks 101 and 102 of the placing device 10 is rubbed on the roller 9 with the cloth 9 straddling the front and rear of the roller 9 as shown in FIG. As a result, the cloth piece Y is spread in the short side direction, and when the chucks 101 and 102 (advancing and retracting table 100) are retracted to the left stroke end position, the chucks 101 and 102 are opened. The cloth piece side edge Yb held there falls on the roller 9, and one short side portion of the cloth piece Y is placed on the roller 9 in an inverted U shape as shown in FIG.

  On the rear side of the roller 9, a transport conveyor 14 is installed at a position appropriately spaced from the roller 9 to the rear side (FIGS. 3, 15 to 20). As will be described later, the transport conveyor 14 is for transferring the cloth piece Y in the unfolded state to the next process (for example, the folding process). Note that the upper surface of the conveyor 14 is positioned considerably lower than the lower surface of the roller 9.

  The hanging device 11 (FIGS. 3 and 14 to 20) is configured by attaching two left and right chucks 114 and 115 to a bowl-shaped receiving base 111 having a front wall and a rear wall. In this embodiment, the left and right chucks 114 and 115 employ telescopic cylinders. The chucks 114 and 115 are attached to the rear surface of the rear wall of the bowl-shaped cradle 111 at a predetermined interval (slightly shorter than the short side length of the cloth piece Y to be processed). 115 rods advance and retreat from the front surface of the rear wall toward the rear surface of the front wall. Each of the chucks 114 and 115 is configured to be able to hold two portions of the cloth piece short side edge between the tip of each rod and the rear surface of the front wall.

  Detectors (photoelectric tubes) 116 and 117 for detecting the short side edge of the cloth piece are attached to the front surface of the rear wall of the bowl-shaped cradle 111 at positions immediately above the chucks 114 and 115. Then, each chuck 114, 115, when each detector 116, 117 detects the short side edge, the corresponding chuck 114, 115 is individually operated, and the cloth piece short side edge is detected. Two places are held.

  The detectors 116 and 117 provided on the bowl-shaped cradle 111 have the following functions. That is, as shown in FIG. 17, when the cloth piece Y straddled over the roller 9 is inclined to the left and right, the short edge of the cloth piece side is also inclined, When the side edge is fed into the bowl-shaped cradle 111, each detector 116.117 detects the short edge on the short side of the cloth piece with a time difference. Therefore, when one of the detectors (116 or 117) detects the short edge of the cloth piece, the divided roller (9a or 9b) on the detected side is stopped with a slight time delay (the cloth short side edge). The edge reaches the position where the edge can be held by the chuck), the short edge on the short side of the cloth is fed only to the other split roller side, and the other detector detects a short time delay after detecting the short edge on the short side of the cloth. The other split roller is stopped. In this manner, even if the cloth piece Y placed on the roller 9 is inclined, the detection of the cloth piece short side edge by the detectors 116 and 117 and the divided rollers 9a and 9b (motors 91 and 92). ), The short side edge of the cloth piece Y can be held at the same height at the hook-shaped cradle 111 portion.

  The suspension device 11 is moved back and forth behind the roller 9 by the advance / retreat device 12. An expansion / contraction cylinder is employed in the advance / retreat apparatus 12 for the suspension apparatus 11. The suspension device 11 (the bowl-shaped cradle 111) can be moved back and forth by the expansion and contraction operation of the expansion / contraction cylinder (advance / retraction device) 12. The expansion / contraction cylinder (advance / retreat device) 12 employs a two-stage expansion / contraction type, and when the expansion / contraction cylinder 12 is extended to the maximum, the bowl-shaped receiving base 111 is positioned immediately below the roller 9 (FIGS. 16 and 17). ) In the intermediate reduced state, the bowl-shaped pedestal 111 is positioned immediately before the start end of the conveyor 14 (FIG. 18), and when it is reduced to the minimum, the bowl-shaped pedestal 111 is retracted to a predetermined depth position on the conveyor 14 (FIG. 19). It is supposed to be. Then, as shown in FIG. 17, when the bowl-shaped cradle 111 advances to just below the roller 9, the roller 9 slowly rotates in the feeding direction (right rotation), and the piece of cloth placed on the roller 9. After the rear short side of Y is dropped into the bowl-shaped cradle 111 and the detectors 116 and 117 detect the short side edge, the chucks 114 and 115 are closed with a predetermined timer delay, and 2 Hold the short edge of the fabric piece at the point. The suspension device 11 is retracted in two stages by the telescopic cylinder 12, but when the bowl-shaped receiving base 111 is retracted by the first stage behind the roller 9 as shown in FIG. The cloth piece Y placed on the roller 9 is dropped to the rear side of the roller, and the cloth piece Y can be suspended in the unfolded state by the suspension device 11.

  The telescopic cylinder 12 for advancing and retracting the suspension device is supported by a mounting base 122 (FIGS. 18 to 20). Wheels 123 and 123 (FIG. 20) are attached to the front and rear of the mounting base 122, respectively, and the front and rear wheels 123 and 123 are supported by rails 124 and 124 that face in the left and right directions, respectively. The telescopic cylinder 12 and the mounting base 122 can move left and right along the rails 124, 124. The reason why the suspension device 11 and the like are supported so as to be movable left and right is to make the centering device 13 described below function.

  The centering device 13 (FIGS. 16, 17, and 20) is used for always placing the cloth pieces Y that are sequentially suspended by the suspension device 11 on a fixed position (center) in the width direction on the conveyor 14. It is. The centering device 13 has detectors (two on the left and right sides) 131 to 134 arranged on the left and right sides with a width slightly wider than the short side width of the cloth piece Y to be processed immediately below the roller 9 (FIG. 16). 17) and an adjustment cylinder 135 (FIG. 20) for moving and adjusting the mounting base 122 (including the suspension device 11) to the left and right by signals from the detectors 131 to 134. Of the detectors on the left and right sides shown in FIGS. 16 and 17 (outside right detector 131, inside right detector 132, inside left detector 133, outside left detector 134), the inside right detector 132 and the inside left detector The interval between the detectors 133 is set to be slightly wider than the short side length of the cloth piece Y, and the outer detectors 131 and 134 are, for example, about 10 to 20 mm outward from the inner detectors 132 and 133, respectively. It is located. The center between the inner detectors 132 and 133 corresponds to the center in the width direction of the conveyor 14. On the other hand, the adjusting cylinder 135 is constituted by two two-stage telescopic cylinders 136 and 137 that are continuously connected in opposite directions.

  As shown in FIG. 17, when the right and left side edges of the cloth piece Y placed on the roller 9 are between the inner detectors 132 and 133, the centering device 13 is configured so that all the detectors 131 to 134 are not in contact with each other. Detection is performed to maintain the adjustment cylinder 135 in a neutral state (at this time, the hook-shaped cradle 111 normally corresponds to the cloth piece Y). When the cloth piece Y is displaced left or right on the roller 9, one or two of the left and right detectors (131 to 134) are in a detection state, and the detector in the detection state The adjustment cylinder 135 is adjusted by the corresponding width to adjust the position of the hook-shaped cradle 111 to the left and right (that is, the hook-shaped cradle 111 is made to correspond to the position of the cloth piece Y being displaced). Then, the side edge of the short side of the cloth piece Y is received by the hook-shaped cradle 111, and then the hanging device 11 is retracted to the intermediate position as shown in FIG. In this state, the adjustment cylinder 135 is operated by the amount previously adjusted so that the position of the bowl-shaped cradle 111 corresponds to the center of the conveyor 14, and then the suspension device 11 is further retracted, and immediately before the suspension device 11 reaches the rearmost position, the chucks 114 and 115 are opened, and the fabric piece short side edge held by the chucks 114 and 115 is conveyed. It drops on the conveyor 14. Therefore, even when the cloth piece Y is placed on the roller 9 and the cloth piece Y is displaced to the left or right of the predetermined position, the cloth piece Y is always centered on the conveyor 14 by the centering device 13. Can be placed. In this way, when the unfolded cloth pieces Y are sequentially placed on the fixed position (center) of the transport conveyor 14, each cloth piece can always be folded at the fixed position in the folding step, and each folded cloth piece can be folded. It can be laminated sequentially in a neat and tidy state.

  Since the rectangular cloth piece unfolding apparatus of the present embodiment has the above-described devices (1 to 17), simply by putting the cloth piece Y after washing and drying onto the supply conveyor 1, the lifting device 2, Temporary holding device 3, corner edge picking device 4, corner edge picking device, lateral pulling device 6, two position holding device 7, edge conveyor 8, air blow device 15, upside down device 16, roller 9, loading device 10, suspension By the lowering device 11, the advance / retreat device 12, the centering device 13, and the like, the cloth pieces Y can be placed on the conveyor 14 sequentially in a state of being automatically and neatly developed.

  Further, in the developing device of the present embodiment, as shown in FIGS. 11 to 13, when the two positions of the cloth piece Y are held by the chucks 71 and 72 of the two-position holding device 7 and placed on the edging conveyor 8. The opening timing of the chucks 71 and 72 is set so that the intermediate portion holding chuck 72 is opened first, and the corner end holding chuck 71 is opened after a predetermined time. Therefore, when the hanging portion of the cloth piece is placed on the edging conveyor 8 with the chucks 71 and 72 holding the two positions of the cloth piece Y, the cloth piece long side edge Yb that contacts the edging conveyor 8 is used. Even when the predetermined length range is inclined on the edging conveyor 8, the predetermined length range (at least the vertical inversion device 16) of the cloth piece leading side edge Yb is set when the entire cloth piece is placed on the edging conveyor 8. The portions held by the chucks 161 and 162 appear substantially parallel to the width direction of the edge conveyor 8. As described above, when the cloth piece Y is transferred in a state where the predetermined length range of the cloth piece leading side edge Yb is substantially parallel to the width direction of the edging conveyor 8, the cloth piece leading side edge is next moved. When the two positions of Yb are held by the chucks 161 and 162 of the upside down device 16, the holding depths at the chucks are substantially equal. Therefore, the holding of the cloth piece side edge Yb by the chucks 161 and 162 does not fail, and when the cloth piece Y is placed on the roller 9 in the next step, the cloth piece assumes a normal posture without inclination.

  Further, in this embodiment, when the two positions of the cloth piece Y are held by the chucks 71 and 72 of the two-position holding device 7 and placed on the edge conveyor 8, the chucks 71 and 72 are placed on the edge conveyor 8. After moving from the start side to the end side, each chuck is operated so as to return to the start side of the edging conveyor 8 by a predetermined small length (so-called sucking operation). Before dropping onto the edging conveyor 8, the entanglement of the hanging part of the cloth piece can be loosened (the hanging part can be expanded in a triangular shape). Therefore, when the chucks 71 and 72 of the two-position holding device 7 are opened, the predetermined length range of the cloth leading side edge Yb can be dropped on the edging conveyor in a state where the predetermined length range is linearly extended. When the two positions of the cloth leading side edge Yb are held by the 16 chucks 161 and 162, the two positions can be held at a more uniform depth.

  Further, in this embodiment, when the two positions of the cloth pieces are held by the chucks 71 and 72 of the two-position holding device 7 and the cloth pieces are placed on the edging conveyor 8, the cloth pieces are suspended. If air is blown by the air blow device 15, even if there are entanglements and wrinkles in the hanging part of the cloth piece, they can be loosened (spread) with the blown air, and the chucks 71 and 72 of the two-position holding device 7 can be opened. At this time, the predetermined length range of the cloth piece leading side edge Yb can be dropped on the edging conveyor 8 in a state where the predetermined length range is further linearly extended.

  FIG. 22 shows a modified example of the mounting material 9 portion in FIG. 1, but in the structure shown in FIG. 22, a vertical traveling belt is used instead of the roller as the mounting material 9. The traveling belt 9 is also installed in a posture in which the rotation axis is directed in the traveling direction of the edging conveyor 8 at a position directly below the edging conveyor 8. The traveling belt 9 also uses two divided belts 9c and 9d divided into left and right. The running belt 9 (divided belts 9c and 9d) used in the embodiment of FIG. 22 functions in the same manner as the roller 9 (divided rollers 9a and 9b) of FIG.

  In the rectangular cloth piece unfolding apparatus shown in FIG. 22, the same reference numerals as those in FIG. 1 are the same as those in FIG.

  Further, in the rectangular cloth piece unfolding device of the embodiment of the present application, the placing material (roller or vertically traveling belt) 9 for straddling the cloth piece as described above is placed directly below the edge conveyor 8. Since the loading material 9 can be installed on the floor surface at the same position as the edging conveyor 8, the occupied floor area of the entire developing device is reduced (the surplus floor area is increased). Can do.

  Further, in the rectangular cloth piece unfolding device according to the embodiment of the present invention, as the upside down device 16, the two positions of the cloth piece side edge Yb are held by the chucks 161 and 162, and then the chucks 161 and 162 are fastened by the rotating device 165. Therefore, it is possible to generate a function of rolling by air resistance on the cloth pieces Y held by each chuck (such as the entangled portions of the cloth pieces Y and the wrinkles). The part becomes easy to expand).

  Furthermore, in the rectangular cloth piece unfolding device according to the embodiment of the present invention, when the two pieces of the cloth piece side edge Yb are held by the chucks 161 and 162 of the upside down device 16, the cloth piece Y is hung downward (reference Y in FIG. 15). In this state, air B (FIG. 2) is blown by the air blowing device 17 against the hanging portion of the cloth piece Y, so that the entangled part and the heel part of the cloth piece Y are more easily expanded ( The cloth stretch accuracy in the subsequent process will be good).

  1 is a supply conveyor, 2 is a lifting device, 3 is a temporary holding device, 4 is a corner edge picking device, 5 is a corner edge picking device, 6 is a horizontal pulling device, 7 is a two-position holding device, 8 is an edge conveyor, 9 Is a roller, 10 is a hanging device, 11 is a suspension device, 12 is an advance / retreat device, 13 is a centering device, 14 is a conveyor, 15 is an air blow device, 16 is an upside down device, 21 is a chuck of a lifting device, 31 Is a chuck of a temporary holding device, 41 is a chuck of a corner end device, 43 is a base plate, 51 is a chuck of a corner end device, 61 is a chuck of a horizontal pulling device, 71 and 72 are chucks of a two-position holding device, 101 and 102 are chucks of the loading device, 111 is a bowl-shaped pedestal, 114 and 115 are chucks of the hanging device, 161 and 162 are chucks of the upside down device, Y is a cloth piece, Ya is a cloth piece corner End, Yb is the long side of the cloth It is a side edge.

Claims (3)

A horizontal pulling device (6) for holding one corner end (Ya) of the rectangular cloth piece (Y) and causing the cloth piece (Y) to lie horizontally;
A two-position holding device (7) that holds two positions at the same height in the vicinity of the corner end (Ya) of the cloth piece (Y) in the lying state and at a distance from the corner end (Ya).
An edge conveyor (8) on which the cloth piece (Y) held by the two-position holding device (7) can be placed to reveal one side edge (Yb) on the cloth piece long side;
A chuck for holding a predetermined length range at the end of the leading edge conveyor (8) at the end of the leading edge conveyor (8b) and the chuck vertically A rotating device (165) for rotating, and holding the predetermined length range of the cloth piece leading side edge (Yb) with the chuck to displace the cloth piece (Y) to a downward hanging position A reversing device (16);
A loading material (9) installed at the polymerization position immediately below the edging conveyor (8) and facing the running direction of the edging conveyor (8);
The above-mentioned predetermined length range of the cloth piece side edge (Yb) having a chuck for receiving a holding portion by the chuck in the cloth piece (Y) held down by the chuck of the upside down device (16) and hung downward. And a placing device (10) for placing the cloth piece (Y) on the placing material (9) while dragging the cloth piece (Y) on the placing material (9),
It has a chuck which holds two places near each end of one short side edge (Yc) of the cloth piece (Y) placed on the placing material (9), and the cloth piece short side by the chuck A suspension device (11) capable of holding the edge (Yc) and suspending the cloth piece (Y) in a deployed state;
And a rectangular cloth piece unfolding device. In claim 1,
The upside down device (16) holds a predetermined length range of the cloth side edge (Yb) with a chuck, and then rotates the chuck downward at a high speed by a rotating device (165) and holds it with each chuck. It is configured to generate a rolling function for the cloth piece (Y)
A rectangular cloth piece unfolding device. In claim 1 or 2,
When the cloth piece (Y) hangs downward while holding the predetermined length range of the cloth piece side edge (Yb) with the chuck of the upside down device (16), air blow is applied to the hanging part of the cloth piece (Y). Air (B) is blown by the device (17).
A rectangular cloth piece unfolding device.

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