JPH07330179A - Device for picking one work only - Google Patents

Abstract

PURPOSE:To surely pick only one work by turning over and lifting a corner part of the work on the top of the loaded works. CONSTITUTION:In a one work picking device 1 to pick a work W one by one from the top of the loaded works, a plurality of sucking pads are provided at an appropriate interval on a vertically movable stretch 5 for the vertical movement are provided, and a turning-over unit 13 consisting of a holding suction pad 9 to hold the work W on the end part side of the work W out of these suction pads and a turning-over suction pad 1 1 to turn over and lift the corner part of the work W is provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a single-piece picking device for picking up works one by one from the upper surface of loaded works.

[0002]

2. Description of the Related Art Conventionally, for example, as is known in Japanese Utility Model Laid-Open No. 3-23132 as a single-sheet picking device for picking up works one by one from the upper surface of loaded works, for example, a vertically moving cylinder is used. A flexible stretch is provided, and a plurality of suction pads for sucking the work are provided at the lower end of the shaft attached to the stretch.
Each suction pad is provided with a peeling operation device (vibrator) for performing a peeling operation when two workpieces sucked by each suction pad are picked up.

[0003]

By the way, when a single work is picked up by the above-described conventional single picking device, in the case of a work having a strong adhesion between the loaded works, none of the work can be taken. Adsorption mistakes often occur. Also,
When two work pieces are taken, the peeling operation device is operated to peel the work pieces, but there are cases where the work pieces cannot be peeled off.

An object of the present invention is to provide a single-sheet picking device in which one corner of the work placed on the upper surface of the loaded work is flipped up and lifted so that only one work can be reliably taken out. .

[0005]

In order to achieve the above object, a single-piece picking device of the present invention is a single-piece picking device for picking up works one by one from the upper surface of loaded works.
For vertical movement, which can be moved up and down, multiple suction pads are provided at appropriate intervals, and among these multiple suction pads, the suction pad for holding the work on the end side of the work and the corner of the work are lifted up. It is characterized in that it is provided with a turning unit composed of a suction pad.

In the single-sheet picking device, a plurality of suction pads other than the turning unit among the plurality of suction pads are used as diagonal suction suction pads, and the turning suction pad is operated by a fluid cylinder. Is configured to turn over the corner portion, and further, the plurality of oblique suction suction pads are provided at the lower end of each shaft extending in the vertical direction, and the length of each shaft is sequentially set from the end face side of the work. It is desirable that the length is made longer and the sled is vertically slidably attached to the stretch.

[0007]

[Operation] By using the single-sheet picking device as described above,
The vertical movement stretch is lowered from above the loaded work, and the plurality of suction pads are suctioned to the top work. Then, of the plurality of suction pads, the pressing suction pad, which is a turning unit, holds the work and the turning pad acts to turn the corner of the work by the operation of the fluid cylinder. Next, when the vertical movement stretch is slid up and slid on the plurality of obliquely hanging suction pads, the sucked work is lifted obliquely and only one piece is reliably taken out.

[0008]

Embodiments of the present invention will be described in detail below with reference to the drawings.

Referring to FIGS. 1, 2 and 3, the single-sheet picking device 1 is provided with a loading unit 3 which is movable in the vertical direction and in the horizontal direction by, for example, a fluid cylinder in FIG. . At the bottom of the loading unit 3, an up-and-down moving stretch 5 extending in the left-right direction in FIGS. 1 and 2 is integrally attached.

A U-shaped bracket 7 is integrated on the end portion side (left end side in FIGS. 1 and 2) of the work in the up-and-down movement stretch 5, and this bracket 7 is a suction holder for holding the work. A turning unit 13 including a turning suction pad 11 for lifting the pad 9 and the corner of the work is provided. Further, in FIGS. 1 and 2 of the vertical movement stretch 5, shafts 15A to 15F are mounted so as to be relatively slidable from the right side to the left side at appropriate intervals in the left-right direction.

Oblique suspension suction pads 17A to 17F are attached to the lower ends of the shafts 15A to 15F. Shaft stoppers 19A to 19F are attached to the upper portions of the shafts 15A to 15F, and the shaft stoppers 19A to 19F prevent the vertical movement stretch 5 from further sliding upward. Moreover, the lengths of the shafts 17A to 17F are sequentially shorter as shown in FIG. 2 (longer from the left end side in FIG. 2, which is the end of the work) in order to suspend the work W obliquely. The work W is bent obliquely when lifted by the suction pads 17A to 17F.

As shown in FIGS. 1 and 3, the turning unit 13 is provided with a fixed block 21 on the right side of the bracket 7 in FIG. 3, and the fixed block 21 has the shaft 19F. A shaft 23 having a length substantially equal to that of the above is mounted and attached, and the lower end of the shaft 23 is provided with the holding suction pad 9.

A moving block 2 is provided in the bracket 7.
5, 27 are provided, and the moving blocks 25, 2
7, rods 29 and 31 projecting to the left and right in FIG. 3 are attached. The rods 29 and 3 protruding to the left and right
1 is projected to the outside from a long hole 33 formed on both sides of the bracket 7 in a diagonally upward right direction in FIG. Moreover, the left and right sides of the rods 29, 31 are mounted in holes 35, 37 formed in the plate 35. A fluid cylinder 41 is provided on the right side of the bracket 7 in FIG. 3, and the tip of a piston rod 43 mounted on the fluid cylinder 41 is attached to the moving block 27.

The moving block 27 includes the shaft 2
A shaft 45 having a length substantially equal to the length of 3 is mounted extending in the vertical direction, and the turning suction pad 11 is provided at the lower end of the shaft 45. Since a mechanism for adsorbing the suction pad 11 for turning, the suction pad 9 for pressing and the suction pads 17A to 17F for oblique suspension to the work W or releasing the suction is already known, the description thereof will be omitted. With the above configuration, when the cylinder 41 is operated to contract the piston rod 43 in FIG. 3, the moving block 27 moves to the right and the rod 31 moves.
Is moved diagonally upward to the right along the long hole 33. Since the rod 31 is mounted in the hole 39 of the plate 35, the plate 35 is moved diagonally upward to the right. Plate 35
Since the rod 29 is attached to the hole 37, the moving block 25 is also moved diagonally upward to the right. Therefore, the collecting pad 11 for scraping, which is provided on the lower end of the shaft 45 mounted on the moving block 25, is also moved diagonally upward to the right in FIG.

Next, the operation of taking out the uppermost works W one by one from the stacked works W will be described. First, in FIGS. 4A and 4B, the loading unit 3 is lowered. And suction pad 9 for holding, suction pad 11 for turning, and suction pad 17A for diagonally hanging
Work W on top of the work W loaded with ~ 17F
Is adsorbed on.

Next, as shown in FIGS. 5 (A) and 5 (B), the fluid cylinder 41 is actuated to contract the piston rod 43, so that the pressing suction pad 9 of the turning unit 13 is at the uppermost position. The work W is pressed to prevent the work W from being displaced, and the corners of the topmost work W of the turning suction pad 11 (the left part in FIG. 5A, FIG.
(B) (right part) is turned up as indicated by arrow A. In the state in which the corner portion of the work W is lifted up, as shown by an arrow B in FIG. 5 (A), air is jetted from an air nozzle (not shown) and lifted up by the suction pad 11 for turning up. Air is supplied between W and the next work W to facilitate separation.

Next, as shown in FIGS. 6 (A) and 6 (B), the fluid cylinder 41 is actuated to further contract the piston rod 43, whereby the top suction work of the turning suction pad 11 is performed. W is further flipped. When the loading unit 3 is raised accordingly, the vertical movement stretch 5 rises until the upper end of the vertical movement stretch 5 comes into contact with the shaft stoppers 19A to 19F attached to the upper portions of the shafts 15A to 15F. The work W rises diagonally. Moreover, by continuously supplying the air between the top work W and the next work W, it is possible to reliably lift only the top work W, that is, only one sheet. When the uppermost work W is lifted, the loading unit 3 is moved, for example, leftward or rightward in FIG. 2 and is conveyed to the next processing.

When there is a hindrance to transportation in the next process,
It is also possible to make the pulling material horizontal by using the shafts 15A to 15F with a cylinder or the like.

Therefore, by repeating the above-described operation, the stacked works W are taken out one by one and conveyed. The loaded works W are loaded on, for example, a work table, and the work table is moved up and down by a lifter. That is, the work table is lifted by the lifter as much as one work W is taken out from the loaded works W, and the height of the work W at the top is always kept constant, so that the loading unit 3 is lowered. The position can be made constant, and the vertical movement of the loading unit 3 is simplified.

This single-sheet picking device 1 is constructed as described above.
As the turning unit 13, the holding pad 9 and the turning suction pad 11 are provided, and the turning unit 13
By providing a plurality of oblique suction suction pads 17A to 17F on the vertical movement stretch 5, the uppermost works W can be reliably taken out one by one from the stacked works W. Moreover, the loaded work W
Even if the end face of is shifted about 10 mm, it can be taken out without any problem. The work W can be adsorbed and taken out regardless of whether the work W is made of iron or non-ferrous material, and the corner portion of the work W having the lowest rigidity is turned, so that the work W can be turned with a small force.

The present invention is not limited to the above-described embodiments, but can be implemented in other modes by making appropriate changes.

[0022]

As can be understood from the above description of the embodiments, according to the present invention, the uppermost work can be reliably taken out one by one from the stacked works.

[Brief description of drawings]

FIG. 1 is a plan view of a single-sheet picking device according to an embodiment of the present invention.

FIG. 2 is a front view of FIG.

FIG. 3 is an enlarged arrow view seen from an arrow III in FIG.

4A and 4B are explanatory views of an operation for picking one work from stacked works, FIG. 4A is a front view, and FIG. 4B is a left side view of FIG.

5A and 5B are explanatory views of an operation of taking one work from stacked works, FIG. 5A is a front view, and FIG. 5B is a left side view of FIG.

6A and 6B are explanatory views of an operation for picking one work from stacked works, FIG. 6A is a front view, and FIG. 6B is a left side view of FIG.

[Explanation of symbols]

 1 Single-Piece Picking Device 3 Loading 5 Vertical Stretch 7 Bracket 9 Holding Pad Suction Pad 11 Turning Suction Pad 13 Turning Unit 15A-15F Shaft 17A-17F Oblique Hanging Suction Pad 19A-19F Shaft Stopper 23 Shaft 25, 27 Moving Block 33 long hole 41 fluid cylinder 43 piston rod 45 shaft

Claims (4)

[Claims] 1. A single-piece picking device for picking up works one by one from the upper surface of a stacked work, wherein a plurality of suction pads are provided at appropriate intervals on a vertically movable stretch. A single-sheet picking device comprising a turning unit composed of a holding suction pad for pushing the work on the end side of the work and a turning suction pad for lifting the corner of the work. 2. The one-piece picking device according to claim 1, wherein a plurality of suction pads other than the turning unit among the plurality of suction pads are used as oblique suction suction pads. 3. The single-piece picking device according to claim 1, wherein the turning suction pad is configured to turn a corner portion of a work by operating a fluid cylinder. 4. The plurality of diagonal suction suction pads are provided at the lower end of each shaft extending in the vertical direction, and the length of each shaft is sequentially lengthened from the end face side of the work to form the vertical movement stretch. The single-sheet picking device according to claim 2, wherein the single-sheet picking device is slidably mounted on the device.