JPH056267Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to the shaping of box-shaped pallets stacked in tiers, and in particular, involves shaping the rear and side surfaces of the pallets using their own weight, as well as shaping them using a forklift. This invention relates to a pallet shaping machine suitable for taking out pallets.

[Prior Art] There is a machine for shaping the pallets of multiple stacked boxes, which shapes the sides of the boxes by abutting a pressing part from two sides of the boxes due to their own weight. It was inconvenient to take it out because it was in contact with the pressing part of the shaping machine.

[Problem that the invention attempts to solve]

In the conventional method, since the shaping machine abuts the pressing part of the unshaped pallet of boxes from two sides, there was a problem that the shaping was broken or difficult to take out when taking it out with a forklift.

An object of the present invention is to provide a pallet shaping machine that can shape the rear and left and right sides of a stacked pallet of boxes using its own weight and that can be easily removed by a forklift.

[Means for solving problems]

To achieve the above object, the present invention includes a bottom plate that descends when loading pallets and rises when unloading;
a holding plate that operates in response to the elevation of the bottom plate and shaping the rear, left and right sides of the pallet; a support plate that engages with the holding plate and rotates from a bottom position to a side position; The stacked pallets are transported and stacked by a forklift, which includes a rack and a rotation mechanism that rotates the holding plate from the bottom position to the side position by shaft rotation transmitted by a pinion that engages with the rack as the bottom plate moves up and down. In a pallet shaping machine that shapes the pallet using its own weight, the support plate is equipped with a coil spring on the back surface, and when the rack and pinion are disengaged, it returns to the bottom position. The support plate is moved out of its operating position with the restoring movement, and the bottom plate is configured to rise to its original position after unloading the pallet.

[Effect]

According to the present invention, when box-shaped pallets stacked in tiers are loaded onto the bottom plate of a pallet shaping machine, the bottom plate descends and rotates a pinion that engages with a rack provided on the back surface of the bottom plate, thereby rotating its drive shaft and sprocket. power is transmitted to the driven shaft via the roller chain, and further rotates the operating shaft via the rotary arm. A support plate to which a presser plate is attached is attached to the operating shaft, and the presser plate is rotated from the bottom to the side to shape the rear, left and right sides of the pallet. The presser plate is then pulled by the force of a coil spring installed between its back and the frame, and when the bottom plate further descends, the rack and pinion disengage and power is no longer transmitted, so the presser plate is reversed to the bottom position. When the pallets are unloaded, the bottom plate is restored to its initial position by the reaction force of a spring provided between the bottom plate and the frame.

〔Example〕

An embodiment of the present invention will be described with reference to FIG.

As shown in Fig. 1, in a pallet shaping machine that reloads a pallet 1 consisting of stacked boxes stacked in tiers and is transported by a forklift (not shown), the side surface of the pallet 1 is shaped by its own weight. A rack 3 provided on the bottom plate 2 descends when one pallet 1 is loaded and rises when the other pallet 1 is loaded, and a pinion 5 that engages with the rack 3 rotates to drive its drive shaft 6.
and the sprocket 8, power is transmitted through the roller chain 9, and the support plate 26, which rotates from the bottom to the side due to the rotation of the operating shaft 16, is restored by the reaction force of the coil spring 21 provided on the back side. It consists of a moving mechanism and a holding plate 19 that engages with the support plate and returns to the bottom position after shaping the rear surface A, left and right side surfaces B of the pallet 1, and the bottom plate 2 is raised after the pallet 1 is unloaded. Configured to restore.

Next, to explain the operation of the present invention while supplementing the structure, when the pallet 1 is loaded on the bottom plate 2, the bottom plate 2 starts to descend. Three guide rods 4 are attached to the rack 3 parallel to the direction B on the left and right sides and around the rear surface, and a circular tube-shaped lifting guide 2 is mounted on the pedestal 10 facing the guide rods 4.
2 is provided to guide the inserted guide rod 4 via a built-in compression coil spring (not shown).
The rack 3 meshes with a pinion 5 having a drive shaft 6 parallel to three directions: the rear surface A, and the left and right sides B, and the pinion 5 is rotated by lowering the bottom plate 2. When the pinion 5 rotates, the drive shaft 6 rotates,
The cam clutch 7 attached to the drive shaft 6 is connected to the bottom plate 2.
Transmits power only in the downward direction. Further, a sprocket 8 for transmitting power to the roller chain 9 is attached to the drive shaft 6, and the entire drive shaft 6 is supported at both ends by bearings 11 fixed to a frame 10. The power transmitted by the roller chain 9 rotates the sprocket 13 attached to the driven shaft 12 provided outside and parallel to the holding plate 19 in three directions, and also rotates the driven shaft 12. A rotary arm 14 is further attached to the driven shaft 12 at the center of the holding plate 19, and both ends of the shaft are supported by bearings 15 fixed to the frame 10. One end of the rotary arm 14 is pin-jointed with one end of a tie plate 18, and the other end of the tie plate 18 is pin-jointed with one end of a rotary arm 17, and an operating shaft 16 passes through the other end of the rotary arm 17 and is freely connected thereto. ing.
The operating shaft 16 is located parallel to and outside the driven shaft 12, and is connected to the lower end of a support plate 26 that is joined to both sides of the presser plate 19 in the width direction. As the rotating arm 14 rotates, the rotating arm 17 connected to the operating shaft 16 is pulled by the tie plate 18 and rotates. The rotation of the rotating arm 17 causes the operating shaft 16 to rotate, and the operating shaft 16 rotates the presser plates 19 in three directions via the support plate 26 to stand upright, and the rear surface A, left and right side surfaces B of the pallet 1 are rotated. Shape it. The operating shaft 16 has a rotating arm 17 and a support plate 26.
In addition to being connected, both ends thereof are supported by bearings 15 fixed on the frame 10. On the other hand, when the presser plate 19 stands upright, it is fixed to the back side of the presser plate 19 and the pedestal 1
Stretch the tension coil spring 21 connecting between the two ends. When the bottom plate 2 is further lowered after the pallet 1 has been shaped, the upper part of the rack 3 has no tooth pattern and is disengaged from the pinion 5, causing the power to be lost. 19 to the original bottom position, the operating shaft 16, rotating arm 17, rotating arm 14, driven shaft 12, sprocket 13, sprocket 8, and drive shaft 6 are rotated in the opposite direction, and the holding plate 19 is in the bottom position. It will turn over and open. By lifting the shaped pallet 1 with a forklift and unloading it, the load due to its own weight on the bottom plate 2 is released, and the bottom plate 2 is released from the compression coil spring built in the lifting guide 22 via the guide rod 4. It is pushed up by the reaction force. As the bottom plate 2 rises, the rack 3 and pinion 5 engage again, and the pinion 5 rotates, but the sprocket 8 does not rotate because the cam clutch 7 does not transmit power in the reverse direction, and the bottom plate 2 remains as it was before shaping. Restore to position.

Due to the above operation, the presser plate 19 in three directions other than the forklift approach direction is moved to the rear surface A, left and right side surfaces B.
It is possible to perform plastic surgery on three sides.

[Effect of idea]

According to the present invention, the rear, left, and right sides of the stacked pallets transported by a forklift are shaped by the respective holding plates of the pallet shaping machine, which rotates under its own weight, and the holding plates are reversed to the bottom position. Since the pallet is in an open state, it is possible to easily remove the pallet after shaping using a forklift.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of the present invention. 1... Palette, 2... Bottom plate, 3... Rack,
5...Pinion, 19...Press plate, 21...Coil spring, A...Rear surface, B...Left and right side surfaces.

Claims (1)

[Scope of utility model registration request] A bottom plate that descends when a pallet is loaded and rises when it is unloaded; a holding plate that operates as the bottom plate moves up and down to shape the rear, left and right sides of the pallet; and a holding plate that engages with the holding plate and adjusts the position of the bottom surface. A support plate that rotates from the bottom to a side position, and a rack provided on the bottom plate, and a rotation that rotates the holding plate from the bottom position to the side position by shaft rotation transmitted by a pinion that meshes with the rack as the bottom plate moves up and down. In a pallet shaping machine that uses its own weight to shape pallets that have been transported and stacked by a forklift that includes a moving mechanism, the support plate is equipped with a coil spring on the back, and when the rack and pinion are disengaged, the support plate returns to the bottom position. The pallet shaping machine is characterized in that, after shaping the pallet, the holding plate is removed from the operating position with the restoring movement of the supporting plate, and the bottom plate is raised to its original position after the pallet is unloaded.