JPH0635233U - Pallet support equipment - Google Patents

Abstract

(57) [Summary] [Purpose] To enhance the utility value as a stacking device or a stage breaking device. [Structure] In the initial state of the step breaking work, the supporting device 1
0 and 20 are left and right supporting devices 20 in FIG.
In this state, the left and right claw members 11, 12 and 21, 22 are separated from each other. When the pallet loaded with the work is loaded, it is stopped at a predetermined position, and then the cylinders 13 and 23 are driven to horizontally rotate the claw members 11 and the like so that the left and right claw members approach each other, and the pallet is moved to the left and right. Support from both sides. As a result, the pallet can be separated into an upper stage and a lower stage. After that, when the claw members 11 and the like are reversely rotated by the cylinders 13 and 23 and the claw members 11 and the like are retracted from the pallet, the original standby state is restored.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a pallet support device that can be used as a stacking device or a stacking device.

[0002]

[Prior art and its problems]

 In printing factories and bookbinding factories, workpieces (products) are transported in units of pallets equipped with workpieces. At this time, in order to save space and improve work efficiency, the workpieces are placed on the workpieces that have been stacked to a specified height. The interleaving paper made of cardboard is sandwiched, and pallets with work pieces are stacked.

Conventionally, the stacking / disassembling work of the above pallets has been carried out by a forklift or the like, but it has been a heavy labor and a complicated work. With regard to automation of work, coupled with the demand for high level of safety, a satisfactory supporting device has not yet been commercialized.

[0004]

[The purpose of the device]

 The present invention has been made in view of the above problems, and an object thereof is to provide a support device for a pallet, which is highly useful as a stacking device or a step breaking device.

[0005]

[Constitution of device]

 The pallet supporting device according to the present invention comprises a pair of left and right claw members capable of supporting both sides of the pallet, and a rotation driving means for the claw members, wherein the claw members are fan-shaped, and the main part is centered horizontally. The pallet is rotatable, and the pallet is supported by horizontally rotating both the claw members and bringing them closer to each other.

[0006]

[Action]

 In the standby state of the pallet, the left and right claw members are separated and are in the retracted state. When a pallet loaded with works is brought in, it is stopped at a predetermined position, and then the driving means horizontally rotates the claw members to bring them closer to each other, thereby supporting the pallets from both left and right sides. As a result, the pallet can be separated into an upper stage and a lower stage. After that, if the claw member is rotated in the reverse direction by the driving means to retract the claw member from the pallet, the original standby state is restored.

[0007]

【Example】

 A preferred embodiment in which the pallet supporting device according to the present invention is used as a stepping device will be described in detail with reference to the drawings. FIG. 1 is a plan view of the step disassembly device. In a frame 5 framed in a rectangular shape, two types of pallets P are arranged.₁, P₂Can handle. Both pallets have the same horizontal width, but different vertical widths (lengths in the pallet advancing direction).₁, P₂Spacer S₁, S₂The positions are different. Therefore, conventionally, the pallet P is fixed at the position where the fork is fixed.₁, P₂Even if extended to both sides, both pallets P ₁ , P₂It was difficult to securely hold the.

Hereinafter, the description will be continued assuming that the traveling direction of the pallet (the upward direction in FIG. 1) is the front and the opposite direction is the rear. A pair of pallet supporting devices 10 and 20 are provided on the left and right frames 51 and 52, respectively. In FIG. 1, for convenience of explanation, the support device 10 on the right side is a pallet P. ₁ The supporting device 20 on the left side is a pallet P.₁Indicates a state of non-support.

The support device 10 is composed of claw members 11 and 12 arranged side by side on the right frame 51 and a driving means 13 for driving the claw members. The supporting device 20 is composed of claw members 21 and 22 arranged side by side on the left frame 52 and driving means 23 for the claw members. Therefore, in this embodiment, the pawl members 11, 12, 21, and 22 are arranged on the left and right sides of the pallet P ₁ at a predetermined interval so as to support the pallet P ₁ in a well-balanced manner.

The claw members 11 and 12 are fan-shaped, and are installed on the frame 51 so as to be horizontally rotatable about the center of the claw members 11, 12 as described later. The distance between the claw member 11 and the claw member 12, the angle of the fan shape, the length of the radius, etc. are determined in consideration of the shape of the pallet to be handled and the like so that they can be supported in a well-balanced manner.

Reference numeral 30 denotes a photoelectric tube, and a plurality of photoelectric tubes 30 are fixed below the right frame 51 via a bracket 31. Reference numeral 32 is a limit switch attached to the right frame 51.

FIG. 2 is an enlarged view of the support device 10 on the right side of FIG. 1, and FIG. 3 is a sectional side view taken along line III-II I of FIG. The fan-shaped claw member 11 is rotatably attached to the support shaft 11a fixed to the front of the frame 51 via a bearing 11b. The claw member 12 is also rotatably attached to a support shaft 12a fixed to the rear of the frame 51 via a bearing 12b. For this purpose, the gear 14 coaxial with the pawl member 12 is connected via the gear 15 having the same number of teeth as the gear 14.

In this embodiment, the rotation directions of the claw members 11 and 12 are reversed in accordance with the positions of the spacers S ₁ and S ₂ of the pallets P ₁ and P ₂ , but depending on the position of the spacers. Alternatively, when only one type of pallet is used, the claw members 11 and 12 may be in the same rotation direction without using the gears 14 and 15.

Reference numeral 41 is a link fixed to the claw member 11, and reference numeral 42 is a link fixed to the gear 15. The links 41 and 42 are connected to the rod 43 parallel to the frame 51 at the support shaft 41a and the support shaft 42a to form the parallel four-sided link mechanism 40, and the claw members 11 and 12 are interlocked. It can be rotated horizontally.

As the driving means 13, a two-stage serial cylinder capable of adjusting the expansion / contraction motion of the cylinder rod 16 in multiple stages is used. That is, the two-stage in-line cylinder 13 is configured by connecting a cylinder 13a having a long expansion / contraction stroke and a cylinder 13b having a short expansion / contraction stroke in series. The cylinder 13a alone, the cylinder 13b alone, or both cylinders. The expansion / contraction stroke can be adjusted by switching to three stages of 13a and 13b, and the claw members 11 and 12 can be horizontally rotated to an optimum angle according to the positions of the spacers S ₁ and S ₂ .

One end (cylinder 13b side) of the two-stage serial cylinder 13 is horizontally rotatably fixed to a base point 13c of a frame 51, and the other end (cylinder 13a side) is connected to the link mechanism 40 via a support shaft 41a. ing.

Next, the operation of this stage dispersal device will be described. In the initial state of the step breaking work, the supporting devices 10 and 20 are in the state of the supporting device 20 on the left side in FIG. When a rectangular pallet P ₁ loaded with works by a conveyer or the like is loaded into the frame 5 of the stage disassembly device, the phototube 30 detects the forward position of the pallet P ₁ and stops it at a predetermined position. . Further, the vertical level position of the palette P ₁ is detected by the limit switch 32 and stopped at the set position.

Next, the cylinders 13 and 23 are driven so that the rods 16 and 26 extend as in the state shown in the supporting device 10 in FIG. 1, and the claw members 11, 12, 21, and 22 are horizontally rotated, and The claw members 11 and 12 and the left claw members 21 and 22 approach each other, and the pallet P ₁ Is supported at 4 points from both the left and right sides. As a result, pallet P₁Is separated into an upper stage and a lower stage, and the stage breaking work is performed by a lifter (not shown).

After that, if the rods 16 and 26 are shortened and the claw members 11, 12, 21, and 22 are retracted from the pallet P ₁ , the original support device 20 is restored. Thereafter, by repeating this work, the work of separating the pallet P ₁ is automatically performed. When the pallet P ₂ is replaced by the pallet P ₁ , the extension lengths of the rods 16 and 26 by the cylinders 13 and 23 are shortened, so that the claw members 11 and 12 can be removed at one point in FIG. Within the range shown by the chain line, it may be horizontally rotated so as not to interfere with the position of the spacer S ₂ of the pallet P ₂ .

Although the example in which the pallet supporting device is applied to the stacking device has been described above, it can be similarly applied to the stacking device. If only one type of pallet is used in the above embodiment, the driving means 13 may be a single stage cylinder.

[0021]

【effect】

 According to the present invention, since a pallet loaded with works is gripped by a fan-shaped claw member having a large supporting area, it is possible to support a heavy pallet in a well-balanced manner, which is useful as a stacking device or a stage breaking device. Extremely high. Further, by devising the fan shape of the claw member, it is possible to safely and reliably handle a plurality of pallets having different shapes, and automation of work can be achieved.

[Brief description of drawings]

FIG. 1 is a plan view of a stage deburring device using a pallet supporting device according to the present invention.

2 is an enlarged view of the supporting device 10. FIG.

FIG. 3 is a sectional side view taken along line III-III in FIG.

[Explanation of symbols]

10, 20 Support device 11, 12, 21, 22 Claw member 13, 23 Drive means (two-stage serial cylinder) 40 Parallel four-sided link mechanism 5, 51, 52, 53 Frame P ₁ , P ₂ pallet S ₁ , S ₂ spacer

Claims (1)

[Scope of utility model registration request] 1. A pair of left and right claw members capable of supporting both sides of a pallet, and a rotation driving means for the claw members, wherein the claw members are fan-shaped and horizontally rotatable around a main part.
A support device for a pallet, which supports the pallet by horizontally rotating both claw members to bring them closer to each other.