JPH0542245U - Work piece picking device - Google Patents

Abstract

(57) [Abstract] [Purpose] Even if one work is stacked on the work loading table with a fixed height and the number of loaded works decreases and the work height becomes low, the top layer is always Air is blown from the air blow nozzle between the work and the next work to ensure reliable separation. A work single-sheet picking device 7 for adsorbing the works W stacked on a work stacking table 25 having a fixed height one by one and lifting the work W upward.
5, a plate material separating device 29, a suction frame 37 provided above the work stacking table 25 and movable up and down, and a suction device provided below the suction frame 37 and connected to the work frame W to suck the work W. It is characterized in that it is provided with a pad 41 and an air blow nozzle 83 provided on the suction frame 37 via brackets 75 and 81 at substantially the same height as the suction pad 41.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a work single-piece picking device for adsorbing works loaded on a work loading table one by one and lifting them upward.

[0002]

[Prior Art]

 In order to automatically load the work to the conventional bender, a lifter table loaded with a work is provided near the bender, and a plate material separating device for separating the work is provided on one side of the lifter table. At the same time, an air blow nozzle, which blows air between the uppermost work and the next work to facilitate work separation, is fixedly provided on the plate separating device side.

In this single-workpiece picking device, the work pieces stacked on the lifter table are sequentially taken out one by one, and the lifter table rises each time even if the work pieces decrease, the upper surface of the stacked work pieces always has a constant height. Hold the position. Therefore, even if the attachment position of the air blow nozzle is fixed, it works to easily separate the work pieces.

[0004]

[Problems to be solved by the device]

 However, since the lifter table is used for this single-workpiece picking device, there is a problem that the cost is inevitably increased. In order to solve this problem, it is conceivable to use a single-piece picking device that uses a fixed work loading table without using a lifter table to pick up one work.

As a result, the number of stacked works decreases as the number of sheets picked up increases, and the stacking height of the works decreases. Therefore, if the air blow nozzle is fixed, it works normally at the initial height, but as the loading height of the work becomes lower, the air does not blow to the intended position, and the air blow nozzle functions. There was a problem that it did not make sense as an air blow nozzle.

The object of the present invention is to improve the above-mentioned problems. Even if the number of workpieces stacked on the workpiece stacking table is sequentially taken and the stacked workpieces are reduced, the uppermost workpiece and the next workpiece are always processed. An object of the present invention is to provide a work single-piece picking device in which air is blown between and to surely separate works.

[0007]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention is a work single-piece picking device for adsorbing works loaded on a work loading table having a fixed height one by one and lifting the work upwards. Side plate separating device, a suction frame provided above the work stacking table and movable up and down, a suction pad connected below the suction frame to suck a work, and the suction frame. An air blow nozzle provided on the frame at a position approximately the same height as the suction pad via a support member was used to form a single-workpiece picking device.

[0008]

[Action]

 By adopting the single-workpiece picking device of the present invention, when the suction frame is lowered to the work loaded on the work loading table, the work of the uppermost layer is sucked by the suction pad. When the suction pad is sucked onto the work, the air blow nozzle provided on the suction frame via the support member is always located at almost the same position as the suction pad. Works to separate the work of the uppermost layer from the next work, and the air blown from the air blow nozzle enters between the works, so that the work is surely separated. Moreover, even if the number of loaded works decreases and the height of the works decreases, the air blow nozzle always holds the suction pad at substantially the same height position, so that the works can be reliably separated.

[0009]

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

Referring to FIG. 3, for example, a press brake 1 as a bender is arranged, and the stocker 5 of the work loading device 3 is provided on the left side of the press brake 1, for example. Above the material stocker 5, a single-sheet loading device 7 is provided. On the front side of the press brake 1, there is provided a loading device 11 for moving the work clamp 9 in the work loading device 3 in the left-right direction. Further, on the right side of the press brake 1, a product stocker 13 for stocking the bent product G folded by the press brake 1 is provided.

The press brake 1 is provided with standing C-shaped side frames 15R and 15L, for example, and a lower table 17 is fixedly provided on the front side of the lower portion of the side frames 15R and 15L. ing. On the upper part of the lower table 17, there is provided a lower mold 19 for molding which has, for example, a concave shape via a lower mold holder. Further, an upper table (ram) 21 which is vertically moved by a fluid cylinder (not shown) is provided on the front side of the upper portions of the side frames 15R and 15L. A molding upper mold 23 having a convex shape, for example, is provided facing the mold 19 via an upper mold holder.

With the above configuration, the work W carried in by the work carry-in device 3 whose details will be described later is placed and positioned on the lower mold 19. In this state, a fluid cylinder (not shown) is operated to move the upper table 21 up and down, whereby the work W is bent by the cooperation of the lower mold 19 and the upper mold 23.

A work loading table 25 as the material stocker 5 in the work loading device 3 is fixed to, for example, the side wall of the lower table 17 in the press brake 1. The work stacking table 25 may be provided near the side of the lower table 17.

A plurality of guide poles 27 are set up on the work loading table 25, and a plurality of works W are loaded between the guide poles 27. By this guide pole 27, the sheets are aligned and stacked without shifting in the front-rear direction. A plate material separating device 29 is provided on the lower table 17 side of the work stacking table 25 to easily separate the work W from the stacked work W when the work W is lifted. Since the specific configuration of the plate material separating device 29 is already known, detailed description thereof will be omitted.

The single-sheet picking device 7 is provided above the work stacking table 25. More specifically, for example, a U-shaped support frame 31 extending vertically is attached to the rear portion of the work stacking table 25. An upper and lower fluid cylinder 33 is provided on the upper frame 31U of the support frame 31.

A piston rod 35 is attached to the tip (lower end) of the vertical fluid cylinder 33, and a vertically movable suction frame 37 is integrated with the lower end of the piston rod 33. A plurality of suction rods 39 extending downward are attached to the suction frame 37. A suction pad 41 is provided at the lower end of each suction rod 39.

The suction pad 41 is for sucking the work W by sucking air by means of a vacuum device. Since the specific structure has already been known, detailed description thereof will be omitted. The suction pad 41 may be made to attract the work W by a magnet.

With the above configuration, when the up-down fluid cylinder 33 is operated and the suction frame 37 is lowered via the piston rod 35, the suction pad 41 contacts the upper surface of the work W stacked on the work stacking table 25. The uppermost work W comes into contact with the suction pad 41 and is sucked. Then, by raising the suction frame 37, only the work W sucked by the suction pad 41 is lifted on the pass line. At this time, by operating the plate material separating device 29, the second and subsequent works W are well separated and only one piece is lifted without lifting.

A loading device 11 in the work loading device 3 is provided in front of the press brake 1. More specifically, a support plate 43 is provided on the front portion of the lower table 17 of the press brake 1. A driven pulley 45 and a drive pulley 47 are provided on the left and right of the support plate 43, and a timing belt 49 is wound around the driven pulley 45 and the drive pulley 47.

A work clamp device 51 is attached to a part of the timing belt 49, and a work clamp 9 that is movable back and forth is provided at the tip of the work clamp device 51. One end of a rotary shaft 53 is attached to the shaft center of the drive pulley 47, and a pulley 55 is fitted to the other end of the rotary shaft 53.

A drive motor 57 is attached to the side frame 15R via a bracket or the like, and another pulley 61 is fitted to an output shaft 59 of the drive motor 57. A belt 63 is wound around the pulley 61 and the pulley 55.

With the above configuration, when the drive motor 57 is driven, the pulley 61 is rotated via the output shaft 59. The rotation of the pulley 61 is transmitted to the drive pulley 47 via the belt 63, the pulley 55, and the rotating shaft 53. Therefore, when the drive pulley 47 is rotated, the timing belt 49 is driven to rotate, so that the work clamp device 51 attached to a part of the timing belt 49 is moved in the left-right direction. Will also be moved in the same direction.

The work clamp device 51 is provided with, for example, a shaft-shaped payout pusher 65 for paying out the bent product G to the press brake 1. A stopper 67 is provided at the rear part of the lower mold 19, and a work pusher device 69 is provided at the front part of the lower mold 19.

A product stocker 13 is provided on the right side of the press brake 1, and the product stocker 13 has a tilt table 71 for dropping the product G carried out from the press brake 1 downward. Below the tilting table 71, a stacking box 73 for stacking the products G is configured.

The work W loaded on the work loading table 25 is carried into the press brake 1, the work W is bent by the press brake 1, and then the product G is stacked in the stacking box 73. The operation of will be described. First, the suction pad 41 of the single-sheet picking device 7 is lowered to suck the top work W loaded on the work loading table 25. When the suction pad 41 is raised and the plate material separating device 29 is operated in this state, the top work W is easily separated from the second and subsequent works W and only one piece is lifted on the pass line.

At this time, the work clamp device 51 stands by at the position of the left stroke end, and the work clamp 9 clamps one end side of the work W lifted on the pass line by the suction pad 41. When the work W is clamped by the work clamp 9, the holding of the suction pad 41 is released and the work clamp device 51 is moved to the stroke end in the right direction.

Next, when the work clamp 9 is unclamped, the work W is placed on the lower mold 19 and the work clamp device 51 is returned to the stroke end on the left side. While the work clamp device 51 is returned, the work W is bent by the cooperation of the lower mold 19 and the upper mold 23.

After the work W is carried into the press brake 1 by the work clamp 9 of the work clamp device 51, the suction pad 41 descends to adsorb the next work W and lifts it up onto the path line. Let me wait.

Therefore, at the same time when the bending work is completed by the press brake 1, the work clamp 9 clamps the next work W and carries it into the press brake 1. When the next work W is carried in and the product G processed by the payout pusher 65 provided with the work clamp device 51 is pushed to the right side, the product G is carried out to the tilt table 71 and is moved from the tilt table 71. It falls and is accumulated in the accumulation box 73. By repeating this series of operations, a plurality of works W are automatically bent.

As shown in FIGS. 1 and 2, a bracket 75 as a supporting member is provided on the suction frame 37, and the bracket 75 is vertically moved in FIG. The long hole 77 is formed. The bracket 75 is fixed to the suction frame 37 by inserting and tightening a plurality of bolts 79 into the long holes 77.

Another bracket 81 is integrated with the bracket 75, and on the right side of the bracket 81 in FIGS. 1 and 2, a shaft 85 having an air blow nozzle 83 at the bottom is mounted. The shaft 85 is fixed to the bracket 81 by tightening the bolt 87.

With the above-described configuration, by loosening the bolt 87, the shaft 85 having the air blow nozzle 83 at the lower portion is vertically moved and rotated by the operator, and the air blowing position is adjusted from the air blow nozzle 83. Further, when the bolt 79 is loosened, the bracket 75 moves horizontally, so that the horizontal position of the air blow nozzle 83 provided on the shaft 85 is adjusted via the bracket 81. Therefore, it is possible to deal with the case where the width of the work W changes.

Therefore, the suction frame 37 descends and the suction pads 41 suck the uppermost work W of the works W stacked on the work stacking table 25. Next, when the suction frame 37 is raised and the suction pad 41 is lifted, the plate material separating device 29 is operated to separate the work W attracted to the suction pad 41 from the next work W. At that time, since the air blow nozzle 83 is at substantially the same height as the suction pad 41, air is blown from the air blow nozzle 83 between the work W adsorbed to the suction pad 41 and the next work W. Therefore, the work W can be reliably separated.

Even if the height of the stacked works W decreases, the air blow nozzle 83 provided on the shaft 85 is attached to the vertically movable suction frame 37 via the brackets 79 and 81. Since the suction pad 41 is always held at substantially the same height as the suction pad 41, air can be constantly blown between the uppermost work W and the next work W. It is needless to say that the work loading table 25 is provided with an escape hole 25H in order to avoid the interference when the shaft 85 descends.

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

[0036]

[Effect of the device]

 As can be understood from the above description of the embodiments, according to the present invention, the construction is as described in the scope of claims for utility model registration. Even if the number of workpieces loaded on the stack decreases and the stacking height of the workpieces decreases, the air from the air blow nozzle is always blown between the workpiece on the top layer and the next work. Workpieces can be reliably separated.

[Brief description of drawings]

FIG. 1 is an enlarged front view showing a main part of the present invention in a state where an air blow nozzle is attached to a suction frame.

FIG. 2 is a plan view of FIG.

FIG. 3 is a perspective view of a press brake including a single-sheet picking device according to an embodiment of the present invention.

[Explanation of symbols]

 3 Work loading device 5 Material stocker 7 Single sheet picking device 25 Work loading table 29 Plate separating device 33 Vertical fluid cylinder 37 Adsorption frame 41 Adsorption pad 75 Bracket (supporting member) 77 Long hole 79 Bolt 81 Bracket (supporting member) 83 Air blow Nozzle 85 Shaft 87 Bolt

Claims (1)

[Scope of utility model registration request] 1. A single-workpiece picking device for adsorbing works loaded on a work loading table having a fixed height one by one and lifting the works upward, the plate material separating device being provided on one side of the work loading table. A suction frame provided above the work stacking table and movable up and down, a suction pad connected below the suction frame for sucking a work, and the suction pad via a support member to the suction frame. A single-workpiece picking device comprising: an air blow nozzle provided at substantially the same height as the above.