KR20130033134A - Pallet changing apparatus for automatic warehouse - Google Patents

Abstract

PURPOSE: A pallet switching device for an automatic warehouse is provided to improve productivity by rapidly and stably replacing a circulating pallet with a delivery pallet when products are loaded. CONSTITUTION: A pallet switching device for an automatic warehouse comprises a body frame(30), a clamping part(40), and a switching part(60). The body frame has a rotating plate(31). The clamping part has pressing rods(41,51) and movable roads(42,52) on the top and the bottom of the rotating plate, and firmly supports products placed between a circulating pallet and a delivery pallet. The switching part rotates the rotating plate to change the position of the circulating pallet and the delivery pallet in a state of being supported by the clamping part. Racks are arranged in the movable rods.

Description

Pallet changing apparatus for automatic warehouse

The present invention relates to a pallet switching device for an automatic warehouse, and more particularly, a safety accident while helping to improve productivity by quickly and reliably replacing a circulating pallet inside a manufacturing site and an external leaving pallet in a state of loading a product. The present invention relates to a pallet switching device for an automatic warehouse that can be prevented.

In general, the utilization of automated warehouses from production to storage or shipment is gradually increasing, and the use of pallets to support and transport products onto conveyors is essential. However, depending on the characteristics of the product or the situation of the site, a process for automatically replacing the pallet is required.

For example, the "Pallet reversing device" of Korean Laid-Open Patent Publication No. 2000-0059646 is a palletizer for supplying the dedicated pallets supplied from the pallet input unit individually, and the dedicated pallet is connected to the palletizer and supplied with the pallet. A transversal unit which is located in the side-shifted conveying unit and is supplied with a temporary pallet supplied from the conveying unit to position / convert the dedicated pallet and the temporary pallet by 180 degrees; It proposes a configuration consisting of a discharge portion to be supplied and discharged pallet. Accordingly, the operator expects the effect of improving the work efficiency and production efficiency by automating the simple / repeated operation of placing the material on the dedicated pallet by hand.

As another example, "Palette bogie type reversal" of the Korean Utility Model Publication No. 0387468 is a main body movable with a wheel mounted; and a pair of first fork movable in the vertical direction; and away from the first fork A pair of second forks movable up and down so as to be closer to each other; and the first fork and the second fork are mounted at the front part, and the rear part is hinged to the main body to pivot in the vertical direction, and the front part is And a rear lifting unit rotatable relative to each other, and a hydraulic system having one end mounted on the main body and the other end mounted on the elevator to expand and contract the elevator. Accordingly, it is possible to turn over in a small area, the space required for the flip is narrow, easy to work and anticipate the effect of preventing safety accidents.

However, the former patent is suitable for application to a relatively light product that can be manually operated by the worker, so the use range is very limited. The latter patent uses a hydraulic system, but if the pressing force of the upper and lower forks is slightly different, it will not be horizontal, so there is a risk of safety accidents due to the change of position or deviation during rotation, especially in the automatic warehouse. After finishing, it may not run smoothly to the next process, causing the whole system to stop.

Korean Laid-Open Patent Publication No. 2000-0059646 "Pallet Inverter" Korean Utility Model Registration No. 0387468 "Palette Balanced Type Inverter"

An object of the present invention for improving the conventional problems as described above, to prevent the safety accident while helping to improve productivity by quickly and reliably replacing the circulation pallet inside the manufacturing site and the exterior pallet in the manufacturing site in the state of loading the product. The present invention provides a pallet switching device for automatic warehouse.

In order to achieve the above object, the present invention provides a device for converting a pallet for circulation to the shipping pallet loaded with a product: a main body frame having a rotation drive plate; A clamping part provided with a pressure bar and a flow bed so as to be capable of vertically moving at positions facing each other up and down of the rotation driving plate, and tightly supporting the product between the circulation pallet and the delivery pallet; And a switching unit for rotating the rotation driving plate to reverse the positions of the circulation pallet and the shipping pallet in the supported state of the clamping part.

In addition, according to the present invention, the clamping portion is provided with a rack on the opposing upper and lower flow channels, respectively, interposing the pinion on the mutually opposing surfaces of the rack, it is characterized in that the interlocking operation cylinder connected to each pressing table do.

At this time, the upper pressing portion and the lower pressing portion of the clamping portion is characterized in that the upper fork and the lower fork is provided with a space adjustable.

In addition, according to the present invention, the switching unit is characterized in that it comprises a ring gear fixed to the rotary drive plate, a pinion meshing with the ring gear to transmit the rotational force of the motor, a shock absorber for applying a gentle stopping force to the rotary drive plate. .

It should be understood, however, that the terminology or words of the present specification and claims should not be construed in an ordinary sense or in a dictionary, and that the inventors shall not be limited to the concept of a term It should be construed in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be properly defined. Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention, and not all of the technical ideas of the present invention are described. Therefore, It is to be understood that equivalents and modifications are possible.

According to the present invention as described above, there is an effect that can prevent the safety accident while contributing to the productivity improvement by quickly and stably replacing the pallet for circulation inside the manufacturing site and the pallet for shipment outside the manufacturing site in the state of loading the product.

1 is a configuration diagram of a manufacturing site showing the installation state of the device according to the invention
2 and 3 are front and side views showing the main parts of the device according to the invention.
4 shows a perspective view of the main part of the device according to the invention.
5 is an enlarged schematic view of the main part of the apparatus according to the present invention;
6 to 8 are diagrams showing the operating states of the device according to the invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The present invention relates to an apparatus for converting a circulating pallet 22 on which a product 26 is loaded into a shipping pallet 24. Automated warehouse is a general arrangement of the pallet sorter 12, the pallet feeder 14, the pallet recovery machine 16 on a series of conveyors 10 installed inside and outside. The circulation pallet 22 is used to load the product 26 or parts while circulating the process line on the inner conveyor 10, and the shipping pallet 24 is completed on the outer conveyor 10. It is for leaving the desired place with 26) loaded. As such, the part where the internal conveyor 10 and the external conveyor 10 meet is required to replace the pallet 22 for circulation of the product 26 with the pallet 24 for shipping. By arranging the diverter 20, an automatic operation is performed according to the size, weight and type of the product 26.

According to the present invention, the main body frame 30 having the rotary driving plate 31 is installed. The body frame 30 is fixed to one side of the pallet converter 20, and is provided with a rotation driving plate 31 in a rotatable front.

In addition, according to the present invention, the clamping portion 40 is provided with the pressing table 41, 51 and the flow table 42, 52 in the position facing up and down of the rotary drive plate 31 so as to be able to move up and down, respectively. The product 26 is tightly supported between the circulation pallet 22 and the shipping pallet 24. The clamping part 40 stably rotates at the same time in a state in which the circulation pallet 22, the product 26, and the shipping pallet 24 are pressed and supported between the plurality of upper forks 43 and the lower forks 53. Perform the function.

Referring to FIGS. 3 to 5, the upper slider 42 and the lower slider 52 are fixed to the front surface of the rotary driving plate 31 so as to linearly move, and the ends of the upper slider 42 and the lower slider 52 are fixed. The upper presser bar 41 and the lower presser bar 51 are fixed to each other, and the upper fork 43 and the lower fork 53 are respectively fixed on the upper presser bar 41 and the lower presser bar 51. In FIG. 4, the upper presser rod 41 has three upper forks 43 forward and two upper floats 42 downward. The lower presser 51 also has the same structure as the upper presser 41 and the installation direction is opposite.

At this time, the clamping part 40 is provided with a rack 45 on the upper upper and lower opposing (42) and the lower and the upper (52), respectively, and through the pinion 46 on the opposite surface of the rack 45, It is interlocked with the operation cylinders 48 and 58 connected to the respective pressurizing rods 41 and 51. In FIG. 4, the two upper floats 42 supporting the upper presser 41 and the two lower floats 52 supporting the lower presser 51 face each other, and each of the racks 45 on the opposing surface thereof. ) Is fixed to face each other, and each pinion 46 is interposed between the opposing racks 45. The upper operation cylinder 48 and the lower operation cylinder 58 are connected to the upper and lower movements of the upper and lower movements 42 and 52, respectively.

In this way, even if the operating force of the upper actuating cylinder 48 and the lower actuating cylinder 58 is different, the upper and lower pressurizing rods 41, 51, the flow table 42, 52, the fork 43, 53 are It is connected to the rack 45 and the pinion 46 and operated simultaneously. Even if the operating force of the upper operation cylinder 48 and the lower operation cylinder 58 is significantly different or one does not operate, the operation of the forks 43 and 53 is possible. Of course, when the weight of the product 26 is small, only one of the working cylinders 48 and 58 may be used.

On the other hand, the upper pressing portion 41 and the lower pressing portion 51 of the clamping portion 40 is preferably provided with an upper fork 43 and the lower fork 53 so as to adjust the interval. The fork 43, 53 may be adjusted to a sliding engagement structure, but it is preferable to use a bolt for safety. If the interval of the upper fork 43 or the lower fork 53 is adjusted it can be applied to the pallet (22, 24) of various specifications.

In addition, according to the present invention, the switching unit 60 rotates the rotary drive plate 31 so as to reverse the positions of the circulation pallet 22 and the shipping pallet 24 in the supported state of the clamping unit 40. to be. In FIG. 1, the pallet sorter 12 aligns the pallets for delivery, and the pallet feeder 14 aligns the pallets 24 for shipment on the upper surface of the product 26. Supplies). The switching unit 60 of the pallet converter 20 inverts the circulation pallet 22, the product 26, and the shipping pallet 24 closely contacted by the clamping unit 40 to 180 ° at a time. The reversal of the pallets 22 and 24 is for the rapid recovery of the pallet 22 for circulation.

At this time, the switching unit 60 is a ring gear 64 fixed to the rotary drive plate 31, the pinion 66 to be engaged with the ring gear 64 to transmit the rotational force of the motor 68, the rotary drive plate ( 31) is provided with a shock absorber 62 that exerts a gentle stopping force. The ring gear 64 is fixed to the rear surface of the rotation driving plate 31, the motor 68 is fixed on the main body frame 30, and the pinion 66 is fixed to the rotation shaft of the motor 68. 64). One side of the ring gear 64 is provided with a shock absorber 62 to reduce the impact and noise generated during the reversal of the heavy product 26. The shock absorber 62 may take at least one of an air damper method, a buffer spring method, and a brake method.

In operation, when the product 26 loaded and transported on the circulating pallet 22 at the conveyor 10 inside reaches the pallet converter 20, the pallet 24 for delivery from the pallet feeder 14 is the product. The lower fork 53 is inserted into the circulating pallet 22 with the fork 43 and the 53 of the pallet changer 20 opened up and down on the upper surface of FIG. 26 (FIG. 1) (FIG. 6). ), The clamping portion 40 of the pallet changer 20 is operated to simultaneously press the forks 43 and 53 to a constant pressure to maintain a close support state (Fig. 7), and then the switch portion of the pallet changer 20 When the 60 is operated and inverted to 180 °, the circulation pallet 22 is positioned at the top (Fig. 8), and the pallet recoverer 16 recovers the pallet 22 for circulation, and the pallet sorter of the internal conveyor 10 is operated. To 12 (FIG. 1).

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined by the appended claims. It is therefore intended that such variations and modifications fall within the scope of the appended claims.

10: conveyor 20: pallet converter
22: Recycling Pallet 24: Shipping Pallet
30: main frame 31: rotary drive plate
40: clamping part 41, 51: pressurizing table
42, 52: fluid table 43, 54: fork
45: rack 46: pinion
48, 58: working cylinder 60: switching section
62: shock absorber 64: ring gear
66: pinion 68: motor

Claims (4)

In the apparatus for converting the circulation pallet 22 on which the product 26 is loaded into the shipping pallet 24:
Body frame 30 having a rotation drive plate 31;
The pressing table 41, 51 and the flow table 42, 52 are provided in the position facing up and down of the rotary driving plate 31 so as to be able to move up and down, respectively, the circulation pallet 22 and the shipping pallet ( A clamping portion 40 for tightly supporting the product 26 between the 24; And
And a switching unit 60 for rotating the rotation driving plate 31 to invert the positions of the circulation pallet 22 and the shipping pallet 24 in the supported state of the clamping unit 40. Pallet switching device for automatic warehouse. The method of claim 1,
The clamping portion 40 is provided with a rack 45 on each of the upper and lower flow table 42 and the lower flow table 52 facing each other, and through the pinion 46 on the mutually opposing surfaces of the rack 45, Pallet switching device for an automatic warehouse, characterized in that the interlocking operation cylinders (48) (58) connected to the pressure bar (41) (51). The method of claim 2,
The upper presser bar 41 and the lower presser bar 51 of the clamping part 40 are respectively provided with an upper fork 43 and a lower fork 53 so as to be adjustable at intervals for the automatic warehouse pallet switching device. . The method of claim 1,
The switching unit 60 is a ring gear 64 fixed to the rotary drive plate 31, the pinion 66 to be engaged with the ring gear 64 to transmit the rotational force of the motor 68, the rotary drive plate 31 Pallet switching device for an automatic warehouse, characterized in that it comprises a shock absorber 62 for exerting a gentle stopping force.

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