Segment stacking device

Abstract

To provide a stacking device capable of stacking resin moldings while automatically shifting positions at which the resin molding are stacked.SOLUTION: A stacking device 1 comprises a housing part 2 for housing rein moldings 100 in a stacked state, a transfer part 3 for transferring a plurality of resin moldings 100 one by one to the housing part 2, an elevation part 4 for laying a prescribed resin molding 100 on another resin molding 100 by relatively moving the prescribed resin molding 100 transferred to the housing part 2 by the transfer part 3 and the another resin molding 100 housed in the housing part 2 in advance in the stacking direction Z, and a position adjusting part 5 for adjusting a position of the prescribed resin molding with respect to the another resin molding 100 by moving the prescribed resin molding 100 parallel to the another resin molding 100 in the direction X orthogonal to the stacking direction Z.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a stacking device.

Background Art

[0002] When manufacturing a resin molded product made of a resin material such as a foamed material, the resin molded products may be dried in a state where a plurality of resin molded products formed in a predetermined mold are stacked. Patent Document 1 discloses a stacking device (molded product stacking device) that automatically shifts the position where resin molded products are stacked to stack the resin molded products. In the stacking device of Patent Document 1, the resin molded products transferred by the transfer member are sequentially stacked on a support that can be rotated about an axis extending in the stacking direction by a rotation mechanism, thereby stacking the resin molded products. Then, each time a resin molded product is stacked on the support, the support is rotated by a required angle to shift the position where the resin molded products are stacked. By stacking the resin molded products in a state where the stacking positions are shifted, the surface area of each exposed resin molded product increases, so that the resin molded products can be dried efficiently.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, when stacking resin molded products of various shapes and sizes in the stacking device of Patent Document 1 having a rotation mechanism, it is necessary to align the center of the resin molded product with respect to the rotation center of the support for each shape and size of the resin molded product, which is troublesome. For this reason, it is desired to automatically shift the position where the resin molded products are stacked without using a rotation mechanism.

[0005] The present invention has been made in view of the above-described circumstances, and an object thereof is to provide a stacking device capable of automatically shifting the position where resin molded products are stacked and stacking the resin molded products in layers.

Means for Solving the Problems

[0006] A stacking device according to an aspect of the present invention is a stacking device for stacking resin molded products, and includes a storage unit that stores the resin molded products in a stacked state, a transfer unit that transfers the plurality of resin molded products to the storage unit one by one, and a lifting unit that relatively moves a predetermined resin molded product transferred to the storage unit by the transfer unit and another resin molded product previously stored in the storage unit in the stacking direction to stack the predetermined resin molded product on the other resin molded product, and a position adjustment unit that translates the predetermined resin molded product in a direction orthogonal to the stacking direction with respect to the other resin molded product to adjust the position of the predetermined resin molded product with respect to the other resin molded product. The lifting / lowering part has a pair of gripping members that sandwich and grip the predetermined resin molded product or the other resin molded product from a direction orthogonal to the stacking direction, and the pair of gripping members are movable in the stacking direction. 。

Effects of the Invention

[0007] According to the present invention, it is possible to automatically shift the position where resin molded products are stacked and stack the resin molded products in layers.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Embodiment for Carrying out the Invention

[0009] Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 to 9. As shown in FIGS. 1 and 2, the stacking device 1 according to the present embodiment is a device for stacking a plurality of resin molded products 100.

[0010] The resin molded product 100 in the present embodiment is a foam molded product obtained by molding a foam material (foam particles) in a predetermined mold. Further, as shown in FIGS. 1 to 3, the resin molded product 100 is a container (foam container) that opens in one direction and has a rectangular parallelepiped appearance. Furthermore, the resin molded product 100 is formed in a rectangular shape (rectangular shape) when viewed from the opening 101 side. Note that the mode (shape and size) of the resin molded product 100 is not limited to this and may be arbitrary. The resin molded product 100 may be, for example, a plate-like lid that covers the opening of the container.

[0011] As shown in FIGS. 1 and 2, the stacking device 1 of the present embodiment includes a housing portion 2, a transfer portion 3, a lifting portion 4, and a position adjustment portion 5.

[0012] The housing portion 2 houses a plurality of resin molded products 100 in a stacked state. The housing portion 2 has a receiving region 21 for receiving one resin molded product 100 transferred to the housing portion 2 by the transfer portion 3 described later.

[0013] The transfer portion 3 transfers the resin molded products 100 to the housing portion 2 one by one. As shown in FIGS. 1 to 3, the transfer portion 3 of the present embodiment is a belt conveyor having an endless belt 31 and rollers 32. The transfer portion 3 transfers the resin molded product 100 in a state where it is placed on the endless belt 31 in a predetermined linear direction. A part of the region on the endless belt 31 corresponds to the receiving region 21 of the housing portion 2 described above. That is, the resin molded product 100 transferred by the transfer portion 3 is located on the endless belt 31 in the receiving region 21 of the housing portion 2.

[0014] In the following description, the stacking direction (stacking direction) of the resin molded product 100 is referred to as the vertical direction Z. In the drawings, the upper side in the vertical direction Z is indicated by "+Z", and the lower side is indicated by "-Z". Also, the direction corresponding to the transfer direction of the resin molded product 100 by the transfer unit 3 is referred to as the front-rear direction X. The front-rear direction X is orthogonal to the vertical direction Z. In the front-rear direction X, the transfer direction side of the resin molded product 100 is defined as the front, and is indicated by "+X" in the drawings. Also, the side opposite to the front is defined as the rear, and is indicated by "-X" in the drawings. Further, the direction orthogonal to both the vertical direction Z and the front-rear direction X is referred to as the left-right direction Y.

[0015] As shown in FIGS. 1 and 2, the housing portion 2 has frames 22 disposed on both sides in the left-right direction Y of the resin molded product 100 housed therein. The frame 22 extends above the transfer portion 3 which is a belt conveyor.

[0016] The transfer unit 3 transfers the resin molded product 100 in the front-rear direction X to the housing portion 2 with the long side direction of the resin molded product 100 as viewed from the vertical direction Z facing the front-rear direction X. Also, the transfer unit 3 transfers the resin molded product 100 to the housing portion 2 with the opening 101 of the resin molded product 100 facing upward.

[0017] The lifting unit 4 relatively moves a predetermined resin molded product 100 transferred to the housing portion 2 by the transfer unit 3 and another resin molded product 100 previously housed in the housing portion 2 in the vertical direction Z, and stacks the predetermined resin molded product 100 on the other resin molded product 100. The lifting unit 4 of the present embodiment raises and lowers the resin molded product 100 (the aforementioned "another resin molded product 100") previously housed in the housing portion 2 in the vertical direction Z.

[0018] Specifically, as illustrated in FIGS. 3 and 4, the lifting part 4 moves (lifts) upward the first resin molded product 100A (the aforementioned "another resin molded product 100") accommodated in the receiving area 21 of the accommodating part 2 by the transfer part 3. Further, as illustrated in FIGS. 4 to 6, after the transfer part 3 transfers the second resin molded product 100B (the aforementioned "predetermined resin molded product 100") to the receiving area 21, the lifting part 4 moves (lowers) the first resin molded product 100A downward to stack it on the second resin molded product 100B. That is, in the stacking device 1 of the present embodiment, a new resin molded product 100 is arranged below the resin molded product 100 previously accommodated in the accommodating part 2, so that the resin molded products 100 are stacked in the accommodating part 2.

[0019] As shown in FIGS. 1 and 2, the lifting part 4 of the present embodiment has a pair of gripping members 41 provided in the accommodating part 2. The pair of gripping members 41 are provided on both sides in the left-right direction Y of the resin molded product 100 accommodated in the accommodating part 2. The pair of gripping members 41 sandwich and grip the resin molded product 100 accommodated in the accommodating part 2 from the left-right direction Y. The pair of gripping members 41 are respectively attached to the frame 22 of the accommodating part 2 so as to be movable in the left-right direction Y so as to approach and separate from each other. Further, the pair of gripping members 41 are enabled to move in the vertical direction Z with respect to the frame 22 of the accommodating part 2. Specifically, as shown in FIGS. 3 and 4, the pair of gripping members 41 are movable in the vertical direction Z between the receiving area 21 of the accommodating part 2 and the area above it.

[0020] The position adjusting part 5 shown in FIGS. 1 and 2 is for shifting and positioning the resin molded products 100 overlapping in the vertical direction Z when stacking the resin molded products 100 in the accommodating part 2. Before the predetermined resin molded product 100 transferred to the accommodating part 2 by the transfer part 3 overlaps the another resin molded product 100 previously accommodated in the accommodating part 2, the position adjusting part 5 translates the predetermined resin molded product 100 in a direction perpendicular to the vertical direction Z to adjust the position of the predetermined resin molded product 100 with respect to the another resin molded product 100. The translation distances D1 and D2 (see FIGS. 5 to 9) of the predetermined resin molded product 100 with respect to the another resin molded product 100 are preset.

[0021] The position adjustment unit 5 of the present embodiment is constituted by the transfer unit 3. As described above, the transfer unit 3 is configured to translate the resin molded product 100 in the front-rear direction X orthogonal to the vertical direction Z. As shown in FIGS. 1 and 9, the transfer unit 3 as the position adjustment unit 5 translates a predetermined resin molded product 100 transferred to the storage unit 2 in the front-rear direction X by preset distances D1 and D2 with respect to another resin molded product 100 previously stored in the storage unit 2, thereby adjusting the position of the predetermined resin molded product 100 with respect to another resin molded product 100. Thereby, the predetermined resin molded product 100 can be displaced and positioned in the front-rear direction X with respect to another resin molded product 100. Here, since the front-rear direction X corresponds to the long side direction of the resin molded product 100 as viewed from the vertical direction Z, the resin molded products 100 overlapping in the vertical direction Z are displaced in the long side direction of the resin molded product 100. The distances D1 and D2 for translating the predetermined resin molded product 100 in the front-rear direction X with respect to another resin molded product 100 are smaller than the dimensions of the resin molded product 100 in the front-rear direction X, and are preferably, for example, half or less of the dimensions of the resin molded product 100 in the front-rear direction X.

[0022] Further, in the present embodiment, the transfer unit 3 as the position adjustment unit 5 adjusts the position of each resin molded product 100 in the front-rear direction X so that a plurality of resin molded products 100 stacked in the storage unit 2 are arranged in a staggered manner in the front-rear direction X. In the resin molded products 100 stacked in a staggered manner, the resin molded products 100 adjacent to each other in the vertical direction Z are displaced from each other in the front-rear direction X. Also, the resin molded products 100 located on both sides of a predetermined resin molded product 100 in the vertical direction Z are located on one side in the front-rear direction X with respect to the predetermined resin molded product 100. The resin molded products 100 located on both sides of a predetermined resin molded product 100 in the vertical direction Z may be arranged at the same position as each other in the front-rear direction X, for example. In this case, the resin molded products 100 can be stacked stably.

[0023] Further, as described above, the transfer unit 3 of the present embodiment transfers the resin molded product 100 to the storage unit 2 with the opening 101 of the resin molded product 100 facing upward. Therefore, a part of the openings 101 of the resin molded products 100 stacked in a staggered manner in the storage unit 2 is opened upward. As a result, the openings 101 of all the stacked resin molded products 100 can be exposed to the outside.

[0024] Next, with reference to FIGS. 3 to 9, an example of a stacking method for stacking the resin molded product 100 by the stacking device 1 of the present embodiment will be described.

[0025] When stacking the resin molded product 100 by the stacking device 1 of the present embodiment, first, as shown in FIG. 3, the transfer unit 3 transfers the first resin molded product 100A to the receiving area 21 of the storage unit 2. Next, as shown in FIG. 4, the lifting unit 4 moves the first resin molded product 100A upward from the receiving area 21. Then, as shown in FIG. 5, the transfer unit 3 transfers the second resin molded product 100B to the receiving area 21 of the storage unit 2.

[0026] Here, the transfer unit 3 as the position adjustment unit 5 moves the second resin molded product 100B forward toward the storage unit 2 so that the position of the second resin molded product 100B in the receiving area 21 is shifted by a predetermined distance D1 in the front-rear direction X with respect to the first resin molded product 100A. In the example shown in FIG. 5, the transfer unit 3 moves the second resin molded product 100B toward the storage unit 2 so that it is shifted forward by a predetermined distance D1 with respect to the first resin molded product 100A. After the movement of the second resin molded product 100B by the transfer unit 3, as shown in FIG. 6, the lifting unit 4 moves the first resin molded product 100A downward and stacks it on the second resin molded product 100B. As a result, the first resin molded product 100A and the second resin molded product 100B are stacked in a state where they are shifted in the front-rear direction X.

[0027] Thereafter, as shown in FIG. 7, the elevating part 4 moves the second resin molded product 100B upward from the receiving area 21 of the accommodating part 2. At this time, the first resin molded product 100A overlapping the second resin molded product 100B also moves upward. Further, as shown in FIG. 8, the transfer part 3 transfers the third resin molded product 100C to the receiving area 21 of the accommodating part 2.

[0028] Here, the transfer part 3 as the position adjusting part 5 moves the third resin molded product 100C forward toward the accommodating part 2 so that the position of the third resin molded product 100C in the receiving area 21 is deviated by a predetermined distance D2 in the front-rear direction X with respect to the second resin molded product 100B. In the example shown in FIG. 8, the transfer part 3 moves the third resin molded product 100C toward the accommodating part 2 so that it is deviated by a predetermined distance D2 backward with respect to the second resin molded product 100B. In the present embodiment, the amount of deviation (distance D2) of the third resin molded product 100C backward with respect to the second resin molded product 100B is the same as the amount of deviation (distance D1) of the second resin molded product 100B forward with respect to the first resin molded product 100A. Note that these two amounts of deviation (distance D1, D2) may be different from each other, for example.

[0029] After the movement of the third resin molded product 100C by the transfer part 3, as shown in FIG. 9, the elevating part 4 moves the second resin molded product 100B downward and stacks it on the third resin molded product 100C. Thereby, the second resin molded product 100B and the third resin molded product 100C are stacked in a state where they are shifted from each other in the front-rear direction X. Similarly hereinafter, by alternately shifting the resin molded product 100 transferred to the receiving area 21 forward and backward with respect to the resin molded product 100 directly above it by the transfer part 3, a plurality of resin molded products 100 are stacked in a staggered manner in the front-rear direction X. Thus, the stacking method of the resin molded products 100 is completed.

[0030] As described above, in the stacking device 1 of the present embodiment, the position adjustment unit 5 translates a predetermined resin molded product 100 by preset distances D1 and D2 with respect to another resin molded product 100 that overlaps in the vertical direction Z. For this reason, the resin molded products 100 that overlap in the vertical direction Z can be automatically displaced and positioned relative to each other. By displacing and positioning the resin molded products 100 that overlap in the vertical direction Z relative to each other, the surface area of the exposed resin molded product 100 increases. Further, the opening 101 of the stacked resin molded product 100 can be exposed to the outside. Thereby, the resin molded product 100 after molding can be efficiently dried. From the above, in the stacking device 1 of the present embodiment, the resin molded products 100 can be automatically stacked by shifting the stacking position of the resin molded products 100 without using a conventional rotation mechanism.

[0031] Further, in the stacking device 1 of the present embodiment, regardless of the size and shape of the resin molded product 100, the resin molded product 100 can be stably stacked while shifting the stacking position of the resin molded product 100 by simply translating the resin molded product 100. Hereinafter, this point will be described. For example, when shifting the stacking position of the resin molded products 100 by using a rotation mechanism as in the prior art, if the center of the resin molded product 100 is displaced with respect to the rotation center of the rotation mechanism, the resin molded product 100 will be stacked in an unstable state. Therefore, in order to stably stack the resin molded products 100, it is necessary to set the device so that the center of the resin molded product 100 is aligned with the rotation center of the rotation mechanism every time the size and shape of the resin molded product 100 to be stacked change, which is troublesome.

[0032] On the other hand, in the stacking device 1 of the present embodiment, the stacking position of the resin molded products 100 is shifted by translating the resin molded product 100. For this reason, even if the size and shape of the resin molded product 100 to be stacked change, the resin molded product 100 can be stably stacked without changing the setting of the device (the translation distance of the resin molded product 100). Therefore, the stacking of resin molded products 100 of various shapes and sizes can be easily performed.

[0033] Further, in the stacking device 1 of the present embodiment, the position adjusting unit 5 for shifting the position of the resin molded product 100 to be stacked is constituted by the transfer unit 3. Therefore, it is not necessary to provide the position adjusting unit 5 separately from the transfer unit 3. That is, in an existing stacking device provided with the transfer unit 3, a function of shifting the position of the resin molded product 100 to be stacked can be added. Therefore, the stacking device 1 can be provided at a lower cost.

[0034] Further, since the position adjusting unit 5 is constituted by the transfer unit 3, the step of transferring the resin molded product 100 in the front-rear direction X toward the housing unit 2 and the step of translating and shifting the resin molded product 100 in the front-rear direction X with respect to another resin molded product 100 overlapping in the vertical direction Z can be performed in a single step. Thereby, a plurality of resin molded products 100 can be efficiently stacked while shifting the resin molded products 100 stacked in the vertical direction Z with respect to each other.

[0035] Further, in the stacking device 1 of the present embodiment, the direction in which the resin molded product 100 is translated by the position adjusting unit 5 is the long side direction of the resin molded product 100 as viewed from the vertical direction Z. Therefore, the resin molded products 100 overlapping in the vertical direction Z are displaced in the long side direction of the resin molded product 100. Thereby, the area of contact between the overlapping resin molded products 100 can be increased as compared with the case where the overlapping resin molded products 100 are displaced in the short side direction of the resin molded product 100. Therefore, the resin molded products 100 can be stacked more stably.

[0036] As described above, the embodiment of the stacking device according to the present invention has been described. However, the present invention is not limited to the above embodiment, and can be appropriately changed without departing from the gist thereof.

[0037] In the present invention, the position adjustment unit 5 may be configured to, for example, translate the resin molded product 100 in the left - right direction Y orthogonal to the up - down direction Z. In this case, the position adjustment unit 5 may be constituted by, for example, a pair of gripping members 41 of the lifting unit 4. For example, with the resin molded product 100 transferred to the accommodating unit 2 by the transfer unit 3 being sandwiched from the left - right direction Y by the pair of gripping members 41, the predetermined resin molded product 100 may be translated in the left - right direction Y by the pair of gripping members 41. In this case, the resin molded product 100 previously accommodated in the accommodating unit 2 can be shifted in the left - right direction Y with respect to the resin molded product 100 to be transferred to the accommodating unit 2 later and positioned.

[0038] In the present invention, the transfer unit 3 may transfer the resin molded product 100 to the accommodating unit 2 with the opening 101 of the resin molded product 100 facing downward. In this case, in the state where the resin molded products 100 arranged in the up - down direction Z are stacked with each other shifted, since a part of the opening 101 of the resin molded product 100 is opened downward, the water droplets accumulated inside the resin molded product 100 can be dropped downward from the opening 101. That is, the moisture inside the resin molded product 100 can be efficiently discharged to the outside. Also, in the present invention, the transfer unit 3 may transfer the resin molded product 100 in the front - rear direction X to the accommodating unit 2 with the short - side direction of the resin molded product 100 as viewed from the up - down direction Z facing the front - rear direction X.

[0039] The present invention is also applicable to, for example, a stacking device in which the resin molded products 100 are stacked in the accommodating unit by arranging a new resin molded product 100 above the resin molded product 100 previously accommodated in the accommodating unit. For example, the transfer unit may transfer a predetermined resin molded product 100 to above another resin molded product 100 previously accommodated in the accommodating unit, and the lifting unit may move the predetermined resin molded product 100 downward and stack it on another resin molded product 100. Even with such a configuration, as described above, it is possible to make the transfer unit and the lifting unit function as the position adjustment unit.

Explanation of reference numerals

[0040] 1... Stacking device, 2... Storage section, 3... Transfer section, 4... Lifting section, 5... Position adjustment section, 100... Resin molded product, Z... Vertical direction (stacking direction)

Claims

1. A stacking device for stacking resin molded products, comprising: a storage unit for storing the resin molded products in a stacked state; a transfer unit for transferring a plurality of the resin molded products to the storage unit one by one; a lifting unit for overlapping a predetermined resin molded product transferred to the storage unit by the transfer unit with another resin molded product previously stored in the storage unit by relatively moving the predetermined resin molded product and the other resin molded product in the stacking direction; a position adjusting unit for adjusting the position of the predetermined resin molded product with respect to the other resin molded product by translating the predetermined resin molded product in a direction perpendicular to the stacking direction with respect to the other resin molded product; characterized by comprising: the lifting unit having a pair of gripping members for gripping the predetermined resin molded product or the other resin molded product by sandwiching them from a direction perpendicular to the stacking direction; the pair of gripping members being movable in the stacking direction.

2. The stacking device according to claim 1, wherein the position adjusting unit is constituted by the transfer unit for transferring the predetermined resin molded product in a direction perpendicular to the stacking direction to the storage unit.

3. The resin molded product is formed in a rectangular shape when viewed from the stacking direction, and the direction in which the position adjusting unit translates the predetermined resin molded product is the long side direction of the resin molded product when viewed from the stacking direction.

Images