JP2007284820A - Fabric extending and conveying machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fabric extending and conveying machine with which both sides of fabric are cleanly extended even if the fabric having a round hole part like a bedding covering cloth is applied. <P>SOLUTION: In the fabric extending and conveying machine with which a fabric S of large area having a round hole part T at the center is extended in a lifted state and the extended lifted fabric S is conveyed to the following process side, a pair of right and left fabric back extending devices 6 and 6 each having an extension belt 61 are provided on the back side of the extended lifted fabric S. A pair of right and left front pushing devices 7 and 7 for pushing front faces Sc and Sc near right and left outside parts of the extended lifted fabric S to the extension belts 61 and 61 sides, respectively, are provided at positions facing the extension belts 61 and 61 so that both sides of the fabric for extension are cleanly extended. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The invention of the present application is a cloth-extended conveyance for causing a large-area cloth made of a futon wrapping cloth having a rounded portion at the center to be stretched in a lifted state and transporting the stretched and lifted cloth to the next process side. Related to the machine. In the following description, the fabric in the stretched lifting state may be simply referred to as the stretched lifting fabric. In the following description, the cloth to be processed by the cloth spreading and conveying machine of the present application may be referred to as a futon wrap.

  In laundry factories, large-area cloths such as sheets and futon wrapping are washed and dried and then pressed with a press or folded with a folding machine. The next process equipment (hereinafter referred to as a press) is used. When supplying the fabric to (explain), it is necessary to spread the fabric neatly in advance.

  By the way, as a cloth spreading / conveying machine capable of spreading a large-area cloth such as a sheet or a futon wrap and transporting the spreading cloth to the next process side, for example, JP-A-7-54262. There is what is shown by (patent document 1). As shown in FIGS. 12 to 15, the cloth spreading and conveying machine of this known example grips both end corners Sa and Sa on one side of the cloth S with the left and right lifting chucks 110 and 110, and a predetermined high position. The fabric S can be held in the stretched and lifted state by moving the lifting chucks 110 and 110 in the left and right separation directions. In addition, in the well-known example of FIG. 12, the cloth wrap which has the rounded part T in the center as the cloth S which should be extended is employ | adopted.

  Further, in this known example of the fabric spreading and conveying machine, the fabric S in the stretched and lifted state shown in FIG. 12 is transferred from each lifting chuck 110 to the receiving chuck 140 (reference numeral 140 ′) of the delivery device 104 as shown in FIG. As shown in FIG. 14, the receiving chuck 140 is retracted. In this state, the vicinity of the upper and lower intermediate portions of the cloth S2 contacts the feeding roller 134. Then, the intake box 131 is sucked, and the feeding roller 134 rotates in the cloth feeding direction, and the lower half portion of the cloth S2 passes through the state indicated by the numeral S3, and then the intake box as indicated by the numeral S4. The air is sucked into 131 (after a predetermined timer, the intake in the intake box 131 stops). Thereafter, the conveyor (adsorption conveyor) 151 runs and the receiving chuck 140 is opened, and the upper edge portion of the cloth is transferred onto the start end portion (horizontal portion) of the conveyor 151 as indicated by reference numeral S4b. Then, as the conveyor 151 travels, the lower side of the cloth S4 is pulled up sequentially, and the cloth is conveyed to the next process (press process) side by the conveyor 151.

  By the way, when the fabric is stretched and lifted, and the lower side of the fabric S4 is sucked into the intake box 131 as shown in FIG. 14 (tension is applied to the lower side of the fabric), the fabric S4 is considerably stretched. However, a small wrinkle or a wavy portion (symbol Y in FIG. 12) may remain on the cloth Y. In view of this, in the known fabric spreading and conveying machine, a pair of right and left fabric rear surface expansion devices 106 and 106 are provided on the back side of the stretched lifting fabric S4 in the vicinity of the bottom of the conveyor 151. As shown in FIG. 12, each of the cloth rear surface expansion devices 106 and 106 has expansion belts 161 and 161 in a lateral orientation on the left and right. Each of the expansion belts 161 and 161 is configured such that the front side thereof travels left and right outward. In addition, each of the expansion belts 161 and 161 uses a breathable one having a large number of small holes. By sucking air in the intake box 163 provided on the back side of each of the expansion belts 161 and 161, The front surface of each of the expansion belts 161 and 161 has a function of sucking the back surface of the cloth.

  And each cloth back expansion device 106, 106 takes in the inside of the air intake box 163 and the front surfaces of the respective expansion belts 161, 161 run respectively leftward and rightward. At that time, the back surface of the cloth S4 is expanded to each side. The belts 161 and 161 are pulled up while being in contact with the front surfaces of the belts 161 and 161 and function to expand the cloths sequentially to the left and right.

JP-A-7-54262

  By the way, in the cloth (duvet wrapping cloth) S in which the cloth to be stretched has the rounded portion T in the center part, the cloth has two overlapping parts. When the cloth S having the two-sided fabrics is stretched by the cloth spreading / conveying machine of the known example (FIGS. 12 to 14), the back side of the stretched lifting cloth S is the back of each cloth. Although it can be expanded left and right by the expansion devices 106, 106, there is almost no function of expanding (stretching) the front side of the stretched lifting cloth (duvet wrapping) S. Therefore, a small wrinkle or a wavy portion (reference numeral Y in FIG. 12) tends to remain on the front surface of the cloth outside the rounded portion T.

  Further, in the case of a cloth (duvet wrapping) S having a double-sided fabric on the front and back sides, air remains between the two-layered fabric (especially the lower side of the rounded portion T), and the fabric may remain swollen. As shown by the chain line, the lower edge Ta of the rounded portion T may hang downward due to the weight (reference Ta ′), and it is easy to form a wavy part in the bulge or sag of the double-layered fabric portion (reference Ta ′). Become. Note that the downward hanging of the lower end edge Ta of the rounded portion illustrated in the chain line in FIG. 15 also occurs when the lower portion of the stretched lifting cloth S is sucked into the intake box 131.

  As described above, in the known fabric spreading and conveying machine shown in FIGS. 12 to 15, the fabric rear surface is a fabric rear surface expansion device for spreading the fabric (duvet wrapping) S having the rounded portion T. 106, 106 can be relatively neatly stretched, but slack such as a small wrinkle, a corrugated portion (symbol Y in FIG. 12), a bulge or a hanging portion (symbol Ta ′ in FIG. 15) or the like tends to remain on the front surface side of the two-layer overlapping portion. Become. Then, when the stretch fabric is fed later and pressed with a press while the slack remains on the front surface of the fabric, there is a problem that the slack portion is crushed in a folded state and a clear crease occurs. In such a fabric with creases, the appearance of the cloth becomes worse and a complaint from the customer comes out.

  In the middle of feeding the stretched lifting cloth S, the hanging part Ta ′ of the lower end edge Ta of the rounded part shown in FIG. 15 passes through the parts of the extension belts 161 and 161. The expansion function by the expansion belt 161 does not work in the hanging portion Ta ′.

  In view of the above-mentioned known problems, the present invention provides a cloth spreading and conveying machine capable of neatly spreading both the front and back surfaces of a cloth having a rounded portion such as a futon wrapping cloth. It is an object.

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

Invention of Claim 1 of the Present Invention The invention of claim 1 of the present application is to reach a predetermined height position in a state where both end corners of one side of a large area cloth having a rounded portion at the center are gripped. For cloth spreading and transporting machines that can lift and lift the cloth in the lifted state by separating the gripping parts of the cloth to the left and right and then transporting the stretched lifting cloth to the next process side I have to.

  And the cloth extension conveyance machine of Claim 1 of this application has a pair of right and left cloths which has an extension belt which is in sliding contact with the cloth back and expands the cloth back side to the left and right outside on the back side of the stretch lifting cloth. A pair of left and right front pressing devices for pressing the front surfaces near the left and right outer sides of the stretched lifting fabrics against the respective expansion belts at positions facing the respective expansion belts of the respective fabric rear surface expansion devices while providing the rear surface expansion devices. Is arranged.

  The left and right expansion belts of the cloth back surface expansion device are arranged at positions near the top of the stretch lifting cloth on the back side of the cloth in the stretch lifting state, and are distributed to the left and right from the center of the width of the stretch lifting cloth. is set up. Each of the expansion belts is installed in a laterally long posture with the front surface being a substantially vertical surface, and the front surface travels in the laterally outward direction. In addition, this cloth back surface expansion device is preferably provided with an intake function capable of sucking the cloth back surface on the front surface of each expansion belt.

  Each front pressing device is a member that can come into contact with the front surface near the left and right outer portions of the stretched lifting cloth on the front surface of each expansion belt, and faces the front surface near the left and right outer portions of the stretched lifting cloth when viewed from the front. A contact member installed in a state in which it can turn up and down between the retracted position outside the left and right outer ends of the stretched lifting cloth, and an arc turning device for turning the contact member up and down, A contact / separation moving device is provided for moving the contact member back and forth between a separation position spaced from the front surface of the extended lifting cloth on the front surface of the expansion belt and a contact position contacting the front surface of the expansion lifting cloth.

  The left and right contact members are not particularly limited, but the front view shape in the use posture is a horizontally long rectangle (for example, the width is about 30 to 40 cm and the vertical width is about 5 to 10 cm). it can. In addition, it is good to use a flexible material like a brush or sponge for the part which contacts the cloth front surface in each contact member.

  Each contact member is pivotally supported by an axis at a position close to the outer end in the horizontal posture, and is installed so that the vertical arc can be rotated between the horizontal posture and the downward posture around the pivot portion. Yes. The position of each contact member is determined according to the size of the cloth to be processed (duvet wrap). At the facing position, the contact member is positioned on the front side near the left and right outer portions of the stretched lifting cloth. In the retracted position, the contact member is positioned outside the left and right outer ends of the stretched lifting cloths.

  Each of the contact members is vertically arc-turned between the facing position and the retracted position by an arc turning device, and for example, a telescopic cylinder can be used for the arc turning device.

  The left and right contact / separation devices move the respective contact members back and forth. For each contact / separation device, for example, a telescopic cylinder can be used. Each contact / separation moving device may move each contact member back and forth together with the arc rotation device.

  Each contact / separation moving device moves the contact member forward while moving the contact member away from the front surface of the stretched lifting cloth on the front surface of the expansion belt when the contact member is moved backward (moved toward the front side). In the state of being moved (moved to the back side), the contact member functions to contact the front surface of the stretched lifting cloth on the front surface of the expansion belt. In the state where the contact member is separated from the front surface of the stretched lifting cloth, even if the contact member is pivoted up and down, the contact member does not contact the stretched lifting cloth.

  The cloth spreading and conveying machine according to claim 1 of the present application operates in the following order. Note that before the supply of the cloth, the left and right contact members are respectively in the downward retracted position and in the retracted position on the near side with respect to the expansion belt. Further, each expansion belt of the cloth rear surface expansion device is operated (the front surface side of the expansion belt travels outward in the left and right directions).

  In this state, first, in the working position, search for both corners of one side of the cloth (a duvet wrap having a rounded part in the center), and the both corners in a state where the rounded part is located on the front surface (front side). Are held by the input chuck. After that, each feeding chuck moves up to a predetermined height while holding both corners of the cloth, and passes the corners of the cloth to each receiving chuck waiting on the upper side. Move in the direction and stretch the fabric left and right in the lifted state. At this time, the left and right contact members are at the retracted positions outside the left and right outer ends of the stretched lifting cloth, and when the cloth is stretched left and right, the left and right outer ends of the cloth are There is no contact (entanglement) with each contact member.

  In this state, the upper parts of the stretched lifting cloths are stretched in a considerable tension state by the tensile force of the left and right receiving chucks, so that the fabrics on the front and back sides are almost joined together (air flows between the fabrics on the front and back sides). There are many cases where the fabric on the left and right sides and the lower part of the stretched lifting fabric is filled with air between the front and back fabrics, and the front fabric is often swollen. Often hangs under its own weight).

  Subsequently, the upper edge of the stretched lifting cloth is transferred onto the conveyor. At this time, the stretched lifting cloth moves to the rear (back side) while being in the stretched state, and the back of the cloth is extended to the left and right. Touch the front of the car (running left and right outside). Immediately thereafter, the left and right contact members are each arc-turned from the downward retracted position to the inside (lateral facing position) by the respective arc turning devices, and then the respective contact members are expanded by the respective contact / separation moving devices. The left and right outer side portions of the lifting cloth are brought into contact with each other. At this time, the left and right outer side portions of the stretched lifting cloth are lightly pressed between the contact member and the expansion belt.

  In this state, the upper edge of the stretched lifting cloth is taken up by the conveyor (the cloth is pulled up in the stretched state). On the other hand, the front surfaces near the left and right outer portions slide on the contact members, respectively, and the air on the left and right sides of the cloth (between the front and back fabrics) is excluded. Moreover, when the lower edge of the rounded part of the stretched lifting cloth reaches the height of the extension belt, the lower edge part of the rounded part is changed to the left and right by the right and left extension function by each extension belt and the pressing function by each contact member. Under the action of being pulled outward, even if the lower edge portion of the rounded portion hangs down under its own weight, the lower edge portion of the rounded portion also extends into a tension state.

  Therefore, even a cloth having a rounded portion (duvet wrapping) can be conveyed to the pressing process side in a state where the entire front and back surfaces are neatly spread.

  In addition, each front pressing device used in the cloth spreading and conveying machine according to claim 1 is configured so that the left and right contact members arc up and down between a downward retracted position and a lateral facing position, respectively. Therefore, the movement range of each contact member in the left-right direction can be small. In this way, when the lateral movement range width of each contact member is reduced, the installation space in the left-right direction of each front pressing device is reduced, and even if each contact member is moved left and right, this cloth The horizontal width of the entire stretcher does not increase. In order to move each contact member between the retracted position and the facing position, it may be possible to linearly move each contact member left and right, but when moving each contact member left and right, As a result, the lateral movement width becomes larger, and as a result, the installation space in the left-right direction of each front pressing device becomes larger, and the left and right width of the entire fabric spreading and conveying machine becomes larger (or each front pressing device becomes a cloth spreading and conveying machine). Squeeze out from the side).

  This cloth spreading and conveying machine can also spread and convey a single piece of cloth such as a sheet. In this case, the entire front pressing device can be retracted to a lower position that does not interfere with the work. It is good to do so.

In the invention of claim 2 of the present application , the futon wrapping is available in a plurality of sizes according to the size of the futon body, and in the laundry factory, the futon wrapping is handled in a mixture of a large size and a small size. There is. The large and small size futon wraps have different widths in the stretched state, so that the contact members are aligned with the facing positions of the front surfaces of the stretched and lifted fabrics near the left and right outer sides. Therefore, it is necessary to adjust the position of the front pressing device (contact member) according to the size of the futon wrapping.

  Accordingly, the invention according to claim 2 of the present application is the cloth extending and conveying machine according to claim 1, wherein the positions of the left and right front pressing devices are respectively adjusted to move left and right in accordance with the size of the cloth to be processed. An adjustment device is provided.

  Each of the position adjusting devices can use an expansion / contraction cylinder, and the entire front pressing device (including the contact member, the arc rotation device, and the contact / separation moving device) can be moved and adjusted by the expansion / contraction cylinder. Note that the position adjustment of the front pressing device by the position adjustment device may be performed by a position adjustment switch provided on the operation panel (installed at the work position).

  If the size of the cloth to be processed (duvet wrapping) is known in advance, the position adjustment of the front pressing device by each position adjusting device may be performed before the cloth is processed (before being put in). If the size of the fabric cannot be determined before processing (before feeding), the positions of the left and right ends of the stretched lifting fabric in the state where the fabric is lifted and stretched in front of each contact member The position adjustment device can be operated so as to adapt the position of the contact member in the downward retracted position.

Advantageous Effects of the Invention of Claim 1 According to the cloth extending and conveying machine of the present invention , the cloth back surface can be extended to the left and right by the cloth back surface expanding device in the process of feeding the stretched lifting cloth to the conveyor side. At the same time, since the front surface of the fabric can be neatly spread with the front pressing device, both the front and back surfaces of the fabric with a rounded portion at the center are clean (small wrinkles, wavy portions and swollen portions). In the state where there is not, there is an effect that it can be stretched and processed into stretch fabrics with good finishing accuracy.

  In addition, the contact member of each front pressing device is configured to be capable of arcing up and down between the downward retracted position and the lateral facing position with respect to the front surface near the left and right outer portions of the stretched lifting cloths. Therefore, the lateral movement range of each contact member can be made smaller than that in which the contact member moves linearly to the left and right, thereby reducing the installation space in the left-right direction of the entire front pressing device. Therefore, even if the contact member is moved left and right, there is an effect that it is not necessary to increase the lateral width of the entire fabric spreading and conveying machine.

Advantages of the Invention of Claim 2 In the invention of claim 2 of the present application, in the cloth spreading and conveying machine of claim 1, the positions of the left and right front pressing devices are respectively left and right according to the size of the cloth to be processed. Is provided with a position adjusting device for moving and adjusting.

  Therefore, in the cloth spreading and conveying machine of claim 2, in addition to the effect of claim 1, the right and left contact members are placed at appropriate positions (stretching) even in the case of cloths of different sizes (duvet wrapping). There is an effect that it can be aligned with the left and right outer portions of the lifting cloth.

  Hereinafter, with reference to FIGS. 1 to 11, the fabric spreading and conveying machine of the present embodiment will be described. The cloth spreading and conveying machine of this embodiment can spread a single piece of cloth such as a sheet without any problem, but especially cloth such as a futon wrapping having a rounded portion at the center. It is suitable for spreading.

  First, the basic configuration of the fabric spreading and conveying machine of this embodiment will be described with reference to FIGS. The cloth spreading and conveying machine includes a loading device 1, a left and right spreading device 2, a suction device 3, a delivery device 4, a conveying device 5, a cloth rear surface expanding device 6, and a front pressing for cloth front surface stretching. Devices 7 and 7.

  The feeding device 1 has a pair of feeding chucks 11 and 11 for holding both end corners Sa and Sa of one side of the cloth S to be stretched, and each of the feeding chucks 11 and 11 is moved up and down (FIG. 3). It can be moved up and down. A rodless cylinder is used for the lifting device 12.

  The input chucks 11 and 11 are juxtaposed to the left and right at intervals of about the shoulder width of a person. Each of the feeding chucks 11 and 11 has a low position (height in FIGS. 1 and 3) which is the height of the feeding operation by the lifting device 12 and a high position (a cloth holding portion of the cloth) where the entire cloth can be suspended. And a height that can be transferred to a receiving chuck 21 described later). Then, at the low position, after the both end corners Sa, Sa on one side of the cloth are gripped by the respective input chucks 11, 11 (the cloth is in a state of S ′ in FIG. 1), the lifting device 12 It can be raised to the delivery height.

  In this embodiment, two feeding devices 1 are provided on the left and right sides so that cloths can be fed from any of the feeding devices 1 and 1. In addition, in the standby state, each of the loading devices 1 and 1 is located at each position distributed left and right from the center of the width of the machine body as shown in FIG. It moves to the center position of the width of the aircraft.

  The left and right extension device 2 has a pair of receiving chucks 21 and 21 that receive both end corners Sa and Sa of the cloth from the respective input chucks 11 and 11 of the input device 1 at a predetermined height position. 21 can be moved in the left-right direction by left and right motion devices (using a reversible servo motor) 22 and 22, respectively. As shown in FIG. 1, the receiving chucks 21 and 21 are waiting at the same interval as the intervals between the input chucks 11 and 11 of the input device 1 in the center of the width of the machine body in the standby state. After receiving Sa and Sa (the state of S ″ in FIG. 1), the left and right moving devices 22 and 22 are moved left and right outwards until the upper side of the fabric is tensioned (the fabric S is lifted and extended in FIG. 1). State).

  As the suction device 3 (FIG. 3), an intake box 31 is provided at a position below the portion where the receiving chucks 21 and 21 move left and right, and the suction fan 33 can suck the air in the intake box 31 with the intake fan 33. Yes. A switching damper 36 is provided in the intake passage 32 that connects the intake box 31 and the intake fan 33. When the switching damper 36 is located on the side of the reference numeral 36 'shown in FIG. The inside of the box 31 is sucked by the intake fan 33. In addition, at the upper end of the front wall of the intake box 31, two left and right feeding rollers 34, 34 are provided. The feeding rollers 34 and 34 are rotated in the feeding direction at predetermined timings by motors 35 and 35, respectively.

  The suction device 3 rotates the feeding roller 34 in the feeding direction and sucks the inside of the intake box 31 when the fabric S is in the stretched and lifted state, thereby lowering the lower side of the fabric S in the stretched and lifted state. Over the feed roller 34 and sucked into the air intake box 31. At that time, a tension action acts on the lower side of the cloth, and the function of causing the cloth S in the stretched and lifted state to stretch downward is generated.

  The delivery device 4 includes a suction box 41 that receives an upper edge portion of the cloth S supported by the receiving chucks 21 and 21 in a stretched and lifted state, an intake fan 42 that sucks the inside of the suction box 41, and a suction box 41. And a telescopic cylinder 43 that advances and retracts forward and backward. A large number of small holes are formed in the upper surface (cloth receiving surface) of the tip of the suction box 41. By suctioning the inside of the suction box 41 with an intake fan 42, the upper edge of the cloth is placed on the cloth receiving surface. Can be adsorbed (held). In the delivery device 4, the upper edge portion of the cloth is sucked on the cloth receiving surface while the suction box 41 is in the front position, and the suction box 41 is indicated by a chain line (reference numeral 41 ′) in FIG. 3. During the backward movement to the position, the upper edge portion of the cloth is operated so as to be transferred onto the starting end portion of the transport device 5 (suction conveyor 51).

  The conveying device 5 has a suction conveyor 51 provided with a large number of small holes on the front side, and a carry-out conveyor 52 continuous to the rear end portion. The starting end portion of the suction conveyor 51 is located in the vicinity of a position just below the rear side slightly from the front end portion (cloth receiving surface) of the suction box 41 at the front position. An air intake box 53 is installed on the lower surface of the upper surface running portion of the suction conveyor 51, and the upper edge of the cloth can be adsorbed on the upper surface of the suction conveyor 51 by sucking the inside of the air intake box 53. ing.

  In the suction box 53 on the suction conveyor 51 side, the suction fan 33 of the suction device 3 is shared, and the suction box 31 of the suction device 3 is alternatively sucked. That is, in FIG. 3, when the switching damper 36 is shown by a solid line, the intake air in the intake box 31 on the suction device 3 side stops, while the intake box 53 on the suction conveyor 51 side is sucked through the duct 54 and is switched. Is switched to the side indicated by a chain line 36 ', the intake air in the intake box 53 on the suction conveyor 51 side is stopped, while the intake box 31 on the suction device 3 side is inhaled.

  The cloth back surface expansion device 6 extends the back surface of the stretched lifting cloth S to the left and right, and has a pair of left and right. The cloth back surface expansion devices 6 and 6 have expansion belts 61 and 61, respectively. Each of the extension belts 61 and 61 is installed at each position distributed right and left from the center of the width of the machine body at a position in the immediate vicinity immediately below the start end of the suction conveyor 51. Each of the expansion belts 61, 61 is installed in a laterally long posture with the front surface being substantially vertical, and is driven by motors 62, 62 so that the front surface travels in the laterally outward direction. The outer end portions of the respective extension belts 61, 61 are extended to the positions protruding outward from the left and right end portions Sd, Sd of the cloth S at the extended lifting position.

  As shown in FIGS. 4 and 6, each of the expansion belts 61, 61 uses a breathable belt provided with a large number of small holes. And suction boxes 63 and 63 are respectively arranged on the back side of the front running portions of the respective expansion belts 61 and 61, and by sucking the inside of the suction boxes 63 and 63, cloths are placed on the front surface of the expansion belt 61. The back of the can be adsorbed. Each intake box 63, 63 is connected to an intake port of the intake fan 65 via ducts 64, 64, respectively, and the intake box 65 sucks the intake box 63, 63 by the intake air. Accordingly, ambient air can be sucked from each small hole of the front running portion of each expansion belt 61, 61. In this embodiment, one intake fan 65 is used to intake air in both intake boxes 63, 63. However, in another embodiment, one intake fan 65 is provided for each intake box 63, 63. You may use them one by one.

  By the way, in the cloth spreading and conveying machine of this embodiment, a futon wrapping having a rounded portion T at the center is adopted as the cloth S to be processed. In this futon wrapping S, the cloth around the rounded portion T is in a two-layered state. Then, when the fabric S having the rounded portion T is stretched, the stretched fabric T is lifted and stretched in a posture in which the rounded portion T faces the front side as shown in FIG. Air may enter the two overlapping portions of the rounded portion T and the front portion of the cloth may swell. In particular, in the fabric S in the stretched and lifted state, the lower end edge Ta of the rounded portion T may hang down due to its own weight (state indicated by reference numeral Ta ′ in FIG. 15).

  In view of this, a pair of left and right front surface pressing devices 7 and 7 for neatly expanding the front surface of the stretched lifting cloth S is provided in the cloth extending and conveying machine of this embodiment. The pair of left and right front pressing devices 7 and 7 are arranged symmetrically as shown in FIGS. 1 to 2, but the configuration of the front pressing device 7 is shown in FIGS. The right front pressing device 7 shown in FIG.

  The front surface pressing device 7 shown in FIG. 4 to FIG. 6 includes a contact member 71 that makes contact with the front surfaces Sc, Sc near the left and right outer sides of the stretched lifting cloth (state S in FIG. 1), and the contact member 71 up and down. An arc rotating device 72 for rotating the arc to the front, a separation position where the contact member 71 is separated from the front surface Sc of the extension lifting cloth S on the front surface of the expansion belt 61, and a contact position where the contact member 71 contacts the front surface Sc of the extension lifting cloth. A contact / separation moving device 73 that moves back and forth between them and a position adjusting device 74 that adjusts the position of the front pressing device 7 (contact member 71) according to the size of the cloth S to be processed are provided.

  The contact member 71 has a horizontally long rectangular shape (for example, a horizontal length of about 30 to 40 cm and a vertical width of about 5 to 10 cm) in a use posture, and a sponge (or a brush) on the inward surface. Such a flexible material is used. A bracket 75 is attached to one end side of the contact member 71 so as to protrude outward.

  The arc rotating device 72, the contact / separation moving device 73, and the position adjusting device 74 are each provided with a telescopic cylinder. Note that the telescopic cylinder of the contact / separation moving device 73 may be relatively short.

  On the other hand, the front surface pressing device 7 (contact member 71, arc turning device 72, contact / separation moving device 73, position adjusting device 74) can guide guide frame 81 having an appropriate length and guide frame 81 to swing up and down. The telescopic cylinder 9, the slide frame 83 that slides with respect to the guide frame 81, and a support member such as a support base 85 that supports the arc rotation device 72 are assembled.

  The guide frame 81 has an appropriate length (for example, about 1 m). One end of the guide frame 81 is pivotally supported on the inner surface of the side machine frame 10 by a shaft 82, while the extension frame 9 (base end) is positioned at an appropriate position near the guide frame base end. Is pivotally supported by the shaft 9a at the tip of the side machine frame 10 and supported by two points (the shaft 82 and the shaft 9a). When the telescopic cylinder 9 is extended, the guide frame 81 is maintained in a horizontal posture facing left and right, while when the telescopic cylinder 9 is contracted, the entire front pressing device 7 including the guide frame 81 is turned to the downward storage position. It has become possible to let you.

  As the slide frame 83, a plate material bent into an L shape in a side view shown in FIG. 6 is used. The slide frame 83 is provided with two upper and lower rollers 84 and 84 that sandwich the guide frame 81 from above and below, so that the slide frame 83 can slide to the left and right with respect to the guide frame 81.

  The support base 85 is for attaching an arc turning device (extension cylinder) 72, and a plate material bent into a substantially L shape in the side view shown in FIG. 6 is used. The support base 85 is disposed in a disengaged state with respect to the guide frame 81 and the slide frame 83 and is fixed to the distal end of a telescopic rod of a contact / separation moving device (extension cylinder) 73 described later.

  These support members (guide frame 81, slide frame 83, support base 85) and front pressing device 7 (contact member 71, arc rotation device 72, contact / separation moving device 73, position adjustment device 74) are shown in FIGS. It is assembled as shown in FIG.

  The telescopic cylinder serving as the position adjusting device 74 is interposed between the guide frame 81 and the slide frame 83, and the slide frame 83 can be moved left and right along the guide frame 81 by the position adjusting device (extensible cylinder) 74. It is like that.

  The telescopic cylinder serving as the contact / separation moving device 73 is mounted on the bottom plate of the slide frame 83 in such a posture that the telescopic portion faces the back side.

  The support base 85 is fixed in the left-right orientation at the distal end of the telescopic rod of the contact / separation moving device (extension cylinder) 73. The support base 85 is provided with appropriate posture stabilizing means for preventing the support base 85 from swinging around the fixed portion at the distal end of the telescopic rod. On the support base 85, a telescopic cylinder serving as the arc turning device 72 is attached in a left-right orientation.

  The contact member 71 pivotally supports the base end portion of the bracket 75 at one end portion thereof on the inner end portion of the support base 85 with a shaft 76, while the tip end portion of the bracket 75 and the arc rotation device (extension cylinder). The distal end portion of the telescopic rod 72 is pivotally supported by a shaft 72a.

  The front pressing device 7 (contact member 71, arc rotation device 72, contact / separation moving device 73, position adjustment device 74) functions as follows.

  When the telescopic cylinder 72 is in a contracted state, the arc rotating device (extension cylinder) 72 maintains the contact member 71 in a lateral posture facing the left and right inward sides as shown by a solid line in FIG. As a result, the contact member 71 is maintained in a downward posture as indicated by a chain line (reference numeral 71 ') in FIG. When the contact member 71 is in the horizontal posture state (the state shown by the solid line in FIG. 4), the contact member 71 faces the front surface Sc of the stretched lifting cloth S on the front surface of the expansion belt 61 (facing position). In the downward posture state (the state indicated by the chain line in FIG. 4), the entire contact member 71 ′ is located outside the outer end Sd of the stretched lifting cloth S (retracted position).

  The position adjustment device (extension cylinder) 74 adjusts the contact member 71 to an appropriate position according to the size of the cloth S to be processed. When the cloth S is a large size, the position adjustment is performed as shown in FIG. The expansion / contraction cylinder 74 serving as a device is reduced (the contact member 71 moves outward). On the other hand, if the fabric S is a small size, the expansion / contraction cylinder 74 is extended as shown in FIG. Moving). The position adjustment device 74 adjusts the position of the contact member 71 regardless of whether it is large or small in size. When the contact member 71 is in the horizontal orientation, the contact member 71 is closer to the outer side of the stretched lifting cloth S. 1 (for example, in the state shown by the solid line in FIG. 4), the contact member 71 ′ is positioned outside the outer end Sd of the stretched lifting cloth S in the downward posture state (reference numeral 71 ′) of the contact member 71. Adjusted. The position adjustment device 74 can be operated with a position adjustment switch provided on the operation panel. For example, when the “small” position adjustment switch is pressed, the position adjustment device 74 moves the contact member 71 to a position corresponding to the small size cloth, and when the “large” position adjustment switch is pressed, the position adjustment device 74 is moved to the contact member. It is preferable to move 71 to a position corresponding to the large-sized cloth.

  As shown in FIG. 5 (and the solid line shown in FIG. 6), the contact / separation moving device (extension cylinder) 73 moves the support base 85 backward to retract the contact member 71 to the extension belt 61 when the extension cylinder 73 is in the contracted state. While being spaced apart from the front surface Sc of the stretched lifting cloth S on the front surface, the support base 85 is advanced to the back side in the extended state of the telescopic cylinder 73 as shown in FIG. 7 (and the state shown by the chain line in FIG. 6). The member 71 functions to contact the front surface Sc of the stretched lifting cloth S on the front surface of the expansion belt 61. Note that the distance at which the contact member 71 is separated from the front surface Sc of the stretched lifting cloth at the separated position shown in FIG. 5 (and the solid line shown in FIG. 6) is the position at which the contact member 71 is shown by the chain line in FIG. Is set to such an extent that the contact member 71 does not come into contact with the stretched lifting cloth S (for example, the separation distance is set to 15 to 20 mm).

  Next, an operation method of the cloth spreading and conveying machine of this embodiment will be described with reference to FIGS. In the initial state during operation, the intake fan 33 of the suction device 3, the intake fan 65 of the cloth back surface expansion device 6, the motors 62 of the expansion belts 61 and 61, the suction conveyor 51 and the carry-out conveyor 52 of the transfer device 5, etc. Each is operating. Further, the contact members 71 and 71 of the front surface pressing devices 7 and 7 are at the retracted position facing downward and the retracted position on the near side with respect to the expansion belt 61 as indicated by reference numeral 71 ′. In addition, when the size of the cloth to be processed is known, each contact member 71 can be previously positioned at an appropriate position by the position adjusting device 74, but the size of the cloth is unknown. In some cases, the position of the contact member 71 can be adjusted later.

  Then, in order to supply the cloth to the cloth spreading and conveying machine, the both end corners of one side of the cloth are searched at the working position, and the both end corners Sa and Sa are respectively input to the input device 1 as shown in FIG. The chucks 11 and 11 are respectively held (states of respective symbols S ′ in FIGS. 1 and 9). Next, the input chucks 11 and 11 are moved up to a predetermined height while holding the cloth both end corners Sa and Sa, and the cloth both end corners are transferred to the receiving chucks 21 and 21 waiting on the upper side. (The state indicated by reference sign S ″ in FIGS. 1 and 9), the receiving chucks 21 and 21 are then moved in the left-right separation direction, and the cloths are lifted to the left and right. At this time, the left and right contact members 71 , 71 at the positions near the outer sides of the left and right outer ends Sd, Sd of the stretched and lifted cloth as shown by reference numeral 71 'in FIG. However, when each contact member 71 and 71 has shifted | deviated from the appropriate position with respect to the cloth size, the right and left position adjusting devices 74 and 74 are operated to match the cloth size of each contact member 71 and 71. Move to an appropriate position.

  Next, from the state where the stretched lifting cloth is designated by S ″ in FIG. 9, the feeding roller 34 rotates at a high speed in the feeding direction, and the switching damper 36 is switched to the chain line (36) side to draw in the intake box. Air is sucked into 31 and the lower end side of the cloth is sucked into the intake box 31 (the extended lifting cloth is in the state of S1 in Fig. 9). Due to the suction action of the fan 33, a downward tension is applied, and the cloths are stretched in a square shape.

  In this state, the upper portions of the stretched lifting cloths are stretched in a considerable tension state by the tensile force of the left and right receiving chucks 21 and 21, so that the front and back fabrics are almost joined (between the front and back fabrics). However, there are many cases where the front fabric is swollen due to air entering between the front and back fabrics (especially, the bottom edge of the rounded portion T). The Ta part often hangs down due to its own weight).

  Thereafter, the switching damper 36 ′ is switched to the side indicated by the solid line (the suction box 53 of the suction conveyor 51 is sucked), the receiving chucks 21 and 21 are opened, and the upper side portion of the cloth is the tip of the suction box 41. Adsorbed and held on the side upper surface. At this time, the upper side portion of the cloth may be pressed toward the top surface of the suction box 41 with air from a blower (not shown). Subsequently, the suction box 41 moves back to the position indicated by the chain line (reference numeral 41 ') through the position indicated by the solid line in FIG. 10, while the upper side portion of the cloth is transferred onto the suction conveyor 51 (reference numeral in FIG. 11). S3 state).

  By the way, while the upper side of the stretched lifting cloth is transferred from the receiving chuck 21 through the suction box 41 to the start end of the suction conveyor 51, the upper portion of the stretched lifting cloth is left and right contact members 71 in a side view. ′ And 71 ′ cross from the front to the rear. As shown in FIG. 1, the left and right contact members 71 ′ and 71 ′ are positioned outside the left and right outer ends Sd and Sd of the stretched lifting cloths, respectively. Therefore, the outer end portions Sd, Sd of the cloth are not caught by the contact members 71 ′, 71 ′.

  Further, the suction box 41 that sucks the upper side portion of the cloth starts to move backward from the forward projecting position shown in FIG. 9, and the upper portion of the stretched lifting cloth makes the distance between the left and right contact members 71 'and 71' back. Immediately after traversing (for example, when the suction box 41 is retracted to the position indicated by the solid line in FIG. 10), the left and right arc rotating devices (extension cylinders) 72 are contracted and the contact members that are in the downward retracted position 71 'and 71' are arc-rotated to the lateral facing position shown by the solid line in FIG. 1 (state of reference numeral 71 in FIG. 11). Subsequently, when the left and right contact / separation moving devices (extension cylinders) 73 are extended, the support base moves to the position indicated by reference numeral 85 'as shown by the chain line in FIG. 6, and the contact members 71, 71 (sponges 71a) The front end surface) is brought into contact with the front and rear surfaces Sc, Sc near the left and right outer portions of the stretched lifting cloth (state of reference numeral 71 ″ in FIGS. 6 and 11).

  In this state, the front surfaces of the left and right expansion belts 61 and 61 are respectively running outward in the left and right directions, and the contact members 71 and 71 (tip surfaces of the sponge 71a) are respectively left and right outer portions of the stretched lifting cloths. The left and right outer side portions of the cloth come into contact with the front surfaces Sc and Sc and are lightly clamped between the front surface of the expansion belt 61 and the rear surface of the contact member 71.

  Then, since the suction conveyor 51 is still running, the lower side of the stretched lifting cloth is pulled up sequentially, but the back side of the stretched lifting cloth is successively stretched left and right by the respective expansion belts 61 and 61. On the other hand, the front surfaces Sc, Sc near the left and right outer portions slide on the contact members 71, 71, respectively, and air on the left and right side portions of the cloth (between the front and back fabrics) is excluded. Further, when the lower edge of the rounded portion of the stretched lifting cloth reaches the height of the extension belts 61, 61, the right and left extension function by the extension belts 61, 61 and the pressing function by the contact members 71, 71, The lower edge portion of the rounded portion T is pulled to the left and right outer sides, and even if the lower edge portion of the rounded portion hangs down by its own weight, the lower edge portion of the rounded portion also extends in a tension state. .

  In this way, if this cloth spreading and conveying machine is used, even in the case of the cloth (duvet wrapping) S having the rounded portion T, the front and back surfaces of each cloth are neatly spread in the press process side. And can be processed without creases.

  Further, the front pressing devices 7 and 7 used in the cloth spreading and conveying machine of this embodiment are such that the left and right contact members 71 and 71 respectively arc upward and downward between a downward retracted position and a laterally facing position. Since it rotates, the movement range of the left-right direction of each contact member 71 and 71 may be small. Thus, when the lateral movement range width of each contact member 71, 71 is reduced, the installation space in the left-right direction of each front pressing device 7, 7 is reduced, and the front pressing devices 7, 7 are provided on the left and right. However, the width of the entire fabric spreading and conveying machine does not increase, and the floor occupation area of the cloth spreading and conveying machine does not increase.

Further, in the cloth spreading and conveying machine of this embodiment, the positions of the left and right front pressing devices 7 and 7 can be moved and adjusted by the position adjusting devices 7 and 74 respectively in accordance with the size of the cloth to be processed. Therefore, even if it is cloth (duvet wrapping) of different sizes, the left and right contact members 71, 71 are positioned at appropriate positions (front surfaces Sc, Sc near the left and right outer portions of the stretched lifting cloth), respectively. Can be combined.
When processing a single piece of cloth such as a sheet with this cloth spreading and conveying machine, the entire left and right front pressing devices are positioned in the lower position that does not interfere with the work as shown by arrows in FIG. It is good to evacuate.

It is a front view of the cloth extension conveyance machine of an example of this application. It is an II-II arrow line view of FIG. It is the III-III arrow line view of FIG. It is an enlarged view of the right side front pressing apparatus part of FIG. FIG. 5 is a plan view of FIG. 4. It is VI-VI expanded sectional drawing of FIG. It is a change figure of the state where the contact member contacted the cloth front surface from the state of FIG. It is a change figure of the state which the contact member moved to the left-right inner side from the state of FIG. It is operation | movement explanatory drawing (corresponding to FIG. 3) of the cloth spreading and conveying machine of FIG. FIG. 10 is a state change diagram from FIG. 9. It is a state change figure from FIG. It is a front view of the cloth spreading and conveying machine of a well-known example. It is operation | movement explanatory drawing of the cloth extension conveyance machine of FIG. It is a state change figure from FIG. It is explanatory drawing of the cloth of a state where it is stretched and suspended.

Explanation of symbols

  1 is a loading device, 2 is a left / right spreading device, 3 is a suction device, 4 is a delivery device, 5 is a conveying device, 6 is a cloth rear surface expansion device, 7 is a front pressing device, 11 is a loading chuck, 21 is a receiving chuck, 22 is a lateral movement device, 61 is an expansion belt, 71 is a contact member, 72 is an arc rotation device, 73 is a contact / separation movement device, 74 is a position adjustment device, S is cloth, Sa is cloth corner, and Sc is The front side near the cloth outer side, Sd is the cloth outer end.

Claims (2)

Suspended to a predetermined height in a state where both end corners (Sa, Sa) of one side of a large area cloth (S) made of a futon wrapping having a rounded part (T) at the center are gripped, The gripping portions (Sa, Sa) of the cloths are separated from each other left and right so that the cloths (S) are stretched in a lifted state, and then the stretched lifting cloths (S) can be transported to the next process side. A cloth spreading and transporting machine,
A pair of left and right cloth rear surface expansion devices (6, 6) having expansion belts (61) slidingly contacting the rear surface of the cloth and extending the rear surface side of the cloth to the left and right outer sides on the rear surface side of the stretched lifting cloth (S). )
The front surfaces (Sc, Sc) closer to the left and right outer sides of the stretched lifting fabric (S) are respectively positioned at positions facing the respective expansion belts (61, 61) of the respective fabric rear surface expansion devices (6, 6). A pair of left and right front pressing devices (7, 7) to be pressed against the expansion belt (61, 61) side are arranged,
Each of the front surface pressing devices (7, 7) is a member that can come into contact with the front surface (Sc) closer to the left and right outer portions of the stretched lifting cloth (S) on the front surface of each of the expansion belts (61, 61). As viewed, between the facing position facing the front surface (Sc) near the left and right outer portions of the stretched lifting cloth (S) and the retracted position outside the left and right outer ends (Sd, Sd) of the extending lifting cloth (S). A contact member (71) installed in a state in which the arc can be turned up and down, an arc turning device (72) for turning the contact member (71) up and down, and the contact member (71) as an expansion belt (61) A contact / separation moving device (73) that moves back and forth between a separation position separated from the front surface of the stretched lifting cloth (S) on the front surface and a contact position contacting the front surface of the stretched lifting cloth (S). )
This is a fabric stretcher. In claim 1,
Position adjustment devices (74, 74) are provided for moving the left and right front pressing devices (7, 7) to the left and right according to the size of the cloth (S) to be processed.
This is a fabric stretcher.

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