JP2007137590A - Curve conveyor device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a curve conveyor device capable of always smoothly performing desired curve conveying regardless of a kind and a shape of an article to be conveyed. <P>SOLUTION: In the curve conveyor device 20, rollers 31 are arranged at a plurality of positions in an arc direction B in circular frames 22, 23 in the state that the longitudinal direction C is directed to a center D of the arc to form a curve route 20A. The rollers 31 at the respective positions are divided to a short length roller part 31A and a long length roller part 31B in the longitudinal direction C. A position of a clearance part 31C generated between the short length roller part 31A and the long length roller part 31B is not aligned in a direction of the curve route 20A to arrange a group of the rollers 31. At conveying by the curve conveyor device, when a lower part of the article to be conveyed is opposed to the clearance part in the roller, the clearance part is not opposed to it in the other roller. Thereby, the lower part opposed to the clearance part can be prevented from being dropped off to the clearance part. The desired curve conveying can be always smoothly performed regardless of the kind and the shape of the article to be conveyed and generation of vibration and large sound (noise) can be prevented. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a curve conveyor device in which rollers are arranged at a plurality of locations in an arc direction in an arc-shaped frame so that the length direction is directed toward the center of the arc and a curve path is formed by a group of rollers.

Conventionally, the following configuration is provided as this type of apparatus. That is, an outer conveyance path and an inner conveyance path are provided in the curved portion by an outer roller and an inner roller constituted by straight rollers, and the outer roller and the inner roller are rotationally driven by a hexagonal belt that is driven by a motor. In this case, the outer roller and the inner roller are rotatably supported by a pair of conveyor frames and a partition frame disposed between the two conveyor frames (see, for example, Patent Document 1).
JP 11-139521 A (page 1-3, FIG. 2)

  However, according to the conventional configuration described above, since the outer roller and the inner roller are supported by the common partition frame, there is a gap between the inner end portion of the outer roller group and the outer end portion of the inner roller group. This gap is formed in a curved line shape. Therefore, depending on the type and shape of the object to be conveyed, the lower part of the object to be conveyed falls into the gap, and the desired curve conveyance cannot be performed smoothly. That is, for example, when a case-like container containing articles is transported in a curve, the rib on the bottom of the container falls into the gap and gets caught, and the intended curve transport cannot be performed smoothly. ) Will occur.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a curve conveyor device that can always smoothly carry a desired curve regardless of the type and shape of the object to be conveyed.

  In order to achieve the above-described object, the curve conveyor apparatus according to claim 1 of the present invention is provided with rollers at a plurality of locations in the arc direction in the arc-shaped frame so that the length direction is directed to the arc center. In the curve conveyor apparatus in which a curved path is formed by a group of rollers, each roller is divided into a short roller portion and a long roller portion in the length direction, and the short roller portion and the long roller portion The roller groups are arranged such that the positions of the gaps formed between the two are uneven in the direction of the curve path.

  Therefore, according to invention of Claim 1, conveyance of the to-be-conveyed object on a curve conveyor apparatus is performed rotating a roller, ie, a short roller part, and a long roller part. And when transporting on the curve conveyor device, depending on the type and shape of the transported object, when the lower part of the transported object faces the gap part of the roller, the gap part is not facing the other roller. Thus, the lower part facing the gap does not fall into this gap. Thereby, regardless of the type and shape of the object to be conveyed, the intended curve conveyance can always be performed smoothly.

  According to a second aspect of the present invention, in the configuration of the first aspect, the short roller portion and the long roller portion are alternately positioned in the direction of the curve path so that the position of the gap portion is determined. These are characterized in that a group of rollers is arranged in an irregular manner.

  Therefore, according to the invention of claim 2, when the lower part of the conveyed object is opposed to the gap part in the roller, the lower part of the roller adjacent to the roller is opposed to the middle part of the long roller part. In addition, the roller can be made to have the same size and the same shape for the short roller group and the long roller group only by considering the assembly arrangement of the short roller unit and the long roller unit. obtain.

  The curve conveyor device according to claim 3 of the present invention is characterized in that, in the configuration according to claim 1 or 2, an inner roller group having the same dimensions is disposed inside the divided roller group. It is a thing.

  Therefore, according to the third aspect of the present invention, the normal conveyance is performed while rotating the short roller portion and the long roller portion of the roller according to the width of the object to be conveyed, or inside the short roller portion and the long roller portion. This can be done while rotating the roller.

  Furthermore, the curve conveyor apparatus according to claim 4 of the present invention is the configuration according to any one of claims 1 to 3, wherein the curve path is inclined with the start end portion being higher than the end portion. It is characterized by the formation.

  Therefore, according to the fourth aspect of the present invention, the object to be conveyed on the curve conveyor device can be slid and conveyed on the curve path while the roller with which the object to be conveyed abuts is rotated freely.

  According to the first aspect of the present invention, the object to be conveyed on the curve conveyor device can be conveyed while rotating the rollers, that is, the short roller portion and the long roller portion. And when transporting on the curve conveyor device, depending on the type and shape of the transported object, when the lower part of the transported object faces the gap part of the roller, the gap part is not facing the other roller. Thus, it is possible to prevent the lower portion facing the gap from falling into the gap. Thereby, regardless of the type and shape of the object to be conveyed, the intended curve conveyance can always be performed smoothly, and the generation of vibrations and loud noise (noise) can be prevented.

  According to the second aspect of the present invention described above, when the lower part of the conveyed object is opposed to the gap in the roller, the lower part of the roller adjacent to the roller is opposed to the middle part of the long roller part. Thereby, it can prevent that the lower part facing the clearance gap falls. In addition, the roller can be configured to have the same size and shape for each of the short roller unit group and the long roller unit group only by considering the assembly arrangement of the short roller unit and the long roller unit. Therefore, the whole can be provided at a low cost.

  According to the third aspect of the present invention described above, the normal conveyance is performed by rotating the short roller portion and the long roller portion of the roller or according to the width of the object to be conveyed, or the short roller portion and the long roller. This can be done while rotating the part and the inner roller.

  According to the fourth aspect of the present invention described above, the object to be conveyed on the curve conveyor device can be slid and conveyed on the curve path while rotating the roller on which the object to be conveyed is in contact with the upper side. While the apparatus can be made into a non-drive type inexpensive configuration, sliding conveyance can always be performed reliably.

[Embodiment]
In the following, the embodiment of the present invention is used, for example, to move an object to be transported on the main transport path to a branch transport path provided outside the side of the main transport path. It demonstrates based on a figure as a state employ | adopted as conversion equipment.

  4 and 5, the conversion facility 1 circulates and moves the support 2 group, so that the case-like container (an example of the object to be transported) A supplied onto the support 2 group at the start end is transferred to the main transport path. 5 can be transported on each support body 2 and can be moved left and right on each support body 2 while moving in the transport direction while traversing the main transport path 5 so that the group of laterally-pressed bodies 3 is transferred to the container A. The container A is configured to branch and move to the left and right with respect to the main transport path 5 while causing the container A to act laterally.

  As a conveyor means for receiving the container A branched and moved in this way and transporting it on the branch transport path, the branch conveyor device 10, the curve conveyor device 20, and the straight conveyor device 12 are sequentially arranged from the main transport path 5 side. Is provided. The straight conveyor device 12 includes a carry-in conveyor 13, an inclined conveyer 14, a horizontal conveyer 15, and a carry-out conveyer 16.

  1 to 3, the frame main body 21 of the curve conveyor device 20 includes a pair of left and right arc-shaped frames 22 and 23 and a lower connection that connects the lower portions of the arc-shaped frames 22 and 23 at a plurality of locations in the arc direction B. The frame 24 and the arcuate frames 22 and 23 are constituted by arcuate intermediate frames 25, 26, and 27 disposed at three places (a plurality of places) in the conveyor width direction. At that time, the intermediate frames 25, 26, and 27 are plate-like, and the lower part is connected to a bracket 28 erected on the lower connection frame 24 by a connection tool (bolt / nut etc.) 29. It is fixed on the connecting frame 24.

  By disposing the rollers 31 with the length direction C facing the arc center D at a plurality of locations in the arc direction B in the arc-shaped frames 22 and 23, the curve path 20A is formed by the group of rollers 31. Yes. At that time, the roller 31 at each location is divided in a length direction C into a short roller portion 31A and a long roller portion 31B. Then, the short roller portion 31A and the long roller portion 31B are alternately positioned in the direction of the curve path 20A, that is, the roller 31 with the short roller portion 31A positioned on the outside and the long roller portion 31B on the outside. By alternately positioning the rollers 31 positioned in the positions of the short roller portions 31A and the long roller portions 31B, the positions of the gap portions 31C are uneven in the direction of the curve path 20A (staggered). A group of rollers 31 is provided.

  Further, an inner roller 32 group having the same dimensions is arranged inside the divided roller 31 group. The roller 31 and the inner roller 32 are disposed on the frame main body 21 side via a common roller shaft 33 so as to be freely rotatable. That is, the roller shaft 33 is inserted from the roller 31 to the inner roller 32, and both ends of the roller shaft 33 are formed at the corner shaft portions and supported by the arcuate frames 22 and 23. The roller 31 and the inner roller 32 are free to rotate with respect to the roller shaft 33, and the intermediate frame 25 positioned on the inner side is positioned in a gap 34 between the roller 31 and the inner roller 32. The roller shaft 33 is fitted into the recess 25a that is open upward.

  The intermediate frame 26 positioned at the center is positioned in a gap 31C between the short roller portion 31A positioned on the inner side and the long roller portion 31B positioned on the outer side. And the long roller portion 31B positioned on the inner side of the recess 26b that is open upward is freely slidable. The intermediate frame 27 positioned on the outer side is positioned in a gap 31C between the long roller portion 31B positioned on the inner side and the short roller unit 31A positioned on the outer side, and the roller shaft 33 is disposed in the concave portion 27a opened upward. In addition to the fitting, the long roller portion 31B located outside is positioned so as to be freely rotatable in the recess 27b that is open upward. That is, the intermediate frame 26 positioned at the center and the intermediate frame 27 positioned outside are formed by alternately positioning the recesses 26a and 27a and the recesses 27b and 27b.

  A guide plate 35 for slidably guiding the container A is provided on the upper surface of the outer arc-shaped frame 23 of the arc-shaped frames 22 and 23. In addition, in the roller 31 in which the long roller portion 31B is positioned on the outside, the surface of the inner portion of the long roller portion 31B is a lining portion 31b to improve the frictional force. An example of the curve conveyor device 20 is configured by the above 21 to 35 and the like.

  The curve path 20A, that is, the curve conveyor device 20, is formed so as to be inclined at a predetermined angle θ with its starting end as a higher position with respect to the terminal end. The said branch conveyor apparatus 10 is a drive roller form, Comprising: The curve conveyor apparatus 20 inclines at a predetermined angle and is formed in the state which continued. Further, the carry-in conveyor 13 of the straight conveyor device 12 is of a drive roller type, and is formed to be inclined at a predetermined angle in a state of being connected to the curve conveyor device 20. The inclined conveyor 14 is of a driving roller type or a driving belt type, and is inclined at a slightly steeper angle than the carry-in conveyor 13. Further, the horizontal conveyor 15 is a drive roller type or a drive belt type, and the carry-out conveyor 16 is a free-roller type, and is inclined at a gentler angle than the carry-in conveyor 13.

  The branch conveyor device 10, the curve conveyor device 20, and the straight conveyor device 12 (the carry-in conveyor 13, the inclined conveyor 14, the horizontal conveyor 15, and the carry-out conveyor 16) are placed on the floor 39 via the legs 38 and the like. Arranged in a posture (angle, etc.).

The operation in the above embodiment will be described below.
The container A that has been transported on the main transport path 5 can be moved to the branch conveyor device 10 by being branched and moved to the left and right with respect to the main transport path 5 while changing its direction. The container A can be driven and conveyed by the branch conveyor device 10 and transferred to the curve conveyor device 20, and can be slid and conveyed on the curve path 20 </ b> A by the curve conveyor device 20. The container A can then be transferred from the curve conveyor device 20 to the carry-in conveyor 13 of the straight conveyor device 12 and conveyed from the carry-in conveyor 13 to the inclined conveyor 14, the horizontal conveyor 15, and the carry-out conveyor 16.

  The sliding conveyance by the curve conveyor device 20 described above is performed while the roller 31 and the inner roller 32 with which the container A is in contact from above are rotated around the roller shaft 33, that is, the short roller portion 31A and the long roller portion. It is performed while 31B and the inner roller 32 are rotated freely. In this case, the sliding movement by the curve conveyor device 20 is ensured while the curve path 20A is formed with the start end portion inclined to the upper end with respect to the end portion, while being a non-driven type inexpensive structure. Can be done.

  Further, sliding conveyance by the curve conveyor device 20 can be performed while the container A is swung outward by centrifugal force, whereby the container A comes into contact with the guide plate 35 and is slidably guided. When it is moved to the carry-in conveyor 13, the surface on the guide plate 35 side can be aligned regardless of the shape. At that time, when the container A comes into contact with the lining portion 31b of the long roller portion 31B from above, the direction of the container A can be regulated by the frictional force, so that the container A is not reoriented more than necessary. Can be slid.

  Then, during sliding conveyance by the curve conveyor device 20, depending on the type and shape of the container A, the lower portion of the container A, that is, the rib a on the bottom surface, as shown in FIG. When facing the roller 31C, the roller 31 adjacent to the roller 31 faces the gap 31C because the rib a faces the middle portion of the long roller portion 31B as shown in FIG. 2 (b). The rib a is not dropped into the gap 31C. As a result, regardless of the type and shape of the container A, the intended curve conveyance can always be carried out smoothly, and thus generation of vibrations and loud noise (noise) can be prevented.

  In the case of a narrow container A, normal sliding conveyance is performed while the short roller portion 31A and the long roller portion 31B of the roller 31 are rotated freely. In the case of the wide container A, the short roller portion 31A, the long roller portion 31B, and the inner roller 32 are idled separately. Further, the roller 31 can have the same size and shape as long as the short roller portion 31A and the long roller portion 31B are assembled, and the short roller portion 31A group can have the same size and shape. Therefore, the entire configuration can be provided at low cost by being configured with two types.

  In the above-described embodiment, the short roller portion 31A and the long roller portion 31B are alternately positioned in the direction of the curve path 20A, whereby the roller 31 group is arranged with the positions of the gap portions 31C being uneven. However, this is because the short roller portion 31A and the long roller portion 31B are placed in two (multiple places) positions in the direction of the curve path 20A so that the positions of the gap portions 31C are not uniform. There may be.

  In the above-described embodiment, the inner roller 32 group having the same dimensions is disposed inside the divided roller 31 group. However, this is the case where the inner roller 32 group is omitted and the divided roller is divided. A format in which only 31 groups are arranged may be used.

  In the above-described embodiment, the curve path 20A is formed so as to be inclined with the start end portion being higher than the end portion, so that a non-drive type (sliding transfer type) curve conveyor device 20 is shown. However, this may be a form in which the curve path 20A is horizontal and is a drive type (drive conveyance type) curve conveyor device.

  In the embodiment described above, in the roller 31 in which the long roller portion 31B is positioned on the outer side, the inner portion of the long roller portion 31B is the lining portion 31b, but this is a long length without the lining portion 31b. The roller part 31B may be sufficient. In this case, the common use of the long roller portion 31B can be promoted.

  In the above-described embodiment, the container A is shown as the conveyed object, but this can correspond to various conveyed objects.

1 is a plan view of a curve conveyor device according to an embodiment of the present invention. It is a vertical front view of the curve conveyor apparatus, (a) is a portion where the long roller portion is located outside, (b) is a portion where the short roller portion is located outside. It is the vertical side view of the principal part of the curve conveyor apparatus, (a) is a part where the outer intermediate frame is located, (b) is a part where the inner intermediate frame is located. It is a schematic plan view of the equipment incorporating the curve conveyor device. It is a schematic side view of the installation incorporating the curve conveyor device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Conversion equipment 2 Support body 3 Side pushing body 5 Main conveyance path 10 Branch conveyor apparatus 12 Straight conveyor apparatus 20 Curve conveyor apparatus 20A Curve path 21 Frame main body 22 Arc-shaped frame 23 Arc-shaped frame 25 Intermediate frame 26 Intermediate frame 26a Recessed part 26b Recess 27 Intermediate frame 27a Recess 27b Recess 31 Roller 31A Short roller portion 31B Long roller portion 31b Lining portion 31C Clearance portion 32 Inner roller 33 Roller shaft 35 Guide plate A Container (conveyed object)
a Rib B Arc direction C Length direction D Arc center θ Inclination angle

Claims (4)

  A curve conveyor device in which rollers are arranged at a plurality of locations in an arc direction in an arc-shaped frame so that a length direction thereof is directed toward the center of the arc, and a curved path is formed by a group of rollers. The roller group is divided into a short roller portion and a long roller portion in the length direction, and the position of the gap portion formed between the short roller portion and the long roller portion is uneven in the direction of the curve path. A curve conveyor device characterized by that.   2. The curve conveyor device according to claim 1, wherein the short roller portions and the long roller portions are alternately positioned in the direction of the curve path so that the roller groups are arranged with the gap portions being unevenly positioned.   The curve conveyor device according to claim 1 or 2, wherein an inner roller group having the same size is disposed inside the divided roller group. The curve conveyor apparatus according to any one of claims 1 to 3, wherein the curve path is formed with its start end portion inclined with respect to the end portion as a higher rank.

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