JPH07148533A - Work supplying and discharging device in sheet machine - Google Patents

Abstract

PURPOSE:To improve the producing test, to miniaturize the device and to automatize the work carrying in and out by preventing becoming sagging caused by work self-weight, surely changing to grip the work, feeding the work at a high speed, and rapidly discharge the work completed in the former process in synchronizing with carrying in. CONSTITUTION:A work receiving member 23 which supports the down surface of a work W sucked with a suction actuator 21 provided on a work supplying and discharging device 9, and together ascends until a work carrying height is installed, a work clamping device 75 which changes to grip the work W supported with the work receiving member 23 and is movable in the horizontal direction in installed on the front side of a sheet machine 1, and a kicker device 143 to discharge the work W completed in former machining is installed adjoining the work clamping device in parallel.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work supplying / discharging device for a plate material processing machine, and particularly, it has a function of preventing sagging of a short material work when it is conveyed, and having a function of discharging a work completed
The present invention relates to a work supply / discharge device in a plate material processing machine that makes it easy to grab a work.

[0002]

2. Description of the Related Art Conventionally, as a means for supplying a short material work supplied for pressing or bending, one or a plurality of actuators such as vacuum cups or electromagnetic magnets are provided on an arm which is vertically moved by being driven by a cylinder, a ball screw or the like. Individually arranged, the short material work loaded in the lower part is adsorbed by the actuator and lifted. Then, by a lateral moving means such as a cylinder or a ball screw, the short material work held by the actuator is conveyed while being held, or one end of the work that has been sucked and raised by the actuator is gripped by the gripping means to re-grip the plate material. The method of supplying the work to the processing machine was adopted. Further, in order to carry out the work completed in the previous process, it is general to provide another take-out device to discharge the work.

[0003]

By the way, in the above-mentioned conventional work supply / discharging device in the plate material processing machine, when a work is long in the conveying (longitudinal) direction, especially when the work is a thin plate, the work piece is bent due to its own weight. There is a problem that it is dropped during transportation. In addition, in order to prevent bending, the suction actuator must be placed over the entire length of the work, and if the work has piercing, the actuator must be placed away from the piercing, which is a troublesome adjustment work. Was needed. Therefore, there is a problem that the carry-in mechanism becomes large and complicated when it is not suitable for high-speed carry-in and the carry-in distance is long.

Further, when the front part of the work is gripped and conveyed, a receiving roller for supporting the rear drip of the work is provided. However, the amount of drip due to the weight of the work varies depending on the plate thickness and length of the work. There was a problem that the work danced during transportation and the transportation was not stable.

Furthermore, the unloading of the work that has been processed is
Since the take-out device is separately provided, the device becomes complicated and the production tact does not increase because it is difficult to synchronize the carry-in and carry-out.

In order to solve the above problems, the object of the present invention is to prevent sagging of the work due to its own weight, to reliably carry out the re-grasping of the work, and to carry it into a fixed position at a high speed. Another object of the present invention is to provide a work supply / discharging device for a plate material processing machine, in which the discharge of the work is carried out rapidly in synchronization with the carry-in, the production tact is improved, the device is downsized, and the carry-in / out of the work is automated.

[0007]

In order to achieve the above object, the present invention provides a work supply / discharge device for supplying or discharging a short work to a plate material processing machine, which is provided in the work supply / discharge device. The work holding device that supports the lower surface of the work adsorbed by the actuator and that is provided with a work receiving member that raises the work to the work conveying height, and that repositions the work supported by the work receiving member, is a horizontally movable work holding device. Provided on the front side of the plate processing machine,
A scratching device for discharging the work completed in the pre-processing is provided adjacent to and parallel to the work gripping device to configure a work supply / discharge device in the plate material processing machine.

In the work supplying / discharging device, as the work receiving member, a roller arm having a driving member that allows a plurality of receiving rollers to move in and out horizontally is provided so as to be vertically swingable. As a work gripping device, a work gripping member is provided so as to be able to move forward and backward by a driving member, and the work is gripped via a link member that constitutes the work gripping member, and the work gripping device is adjacent to the work gripping device. However, it is desirable that the skid members are provided in parallel, and the skid members are provided so as to be able to move forward and backward at double speed via the rack and pinion in conjunction with the forward and backward movement of the work gripping device.

[0009]

By adopting the work supply / discharge device in the plate material processing machine of the present invention, particularly when supplying a short work, the stock work is attracted by the actuator and provided to the roller arm which is the work receiving member. Also, a plurality of receiving rollers are inserted into the lower surface of the work to support it, and at the same time, the work is supported by raising it to the carrying height to prevent sagging when carrying the work. From this state, the gripping device is advanced to grip the work end. It should be noted that the gripping of the work end is performed by advancing and stopping the gripping part by advancing the work gripping member.
The clamp operation is performed sequentially, and the gripping force is increased by the link mechanism so that the work can be re-grip-transferred at high speed without dropping the work during transfer.

Further, the unloading of the work which has been processed is carried out by a scratching device which is provided adjacent to and in parallel with the work gripping device. The operation of the kicking device is performed by a driving member provided in the work holding device, and the work is moved forward and backward at a double speed through the rack and pinion, so that the structure is simple and high-speed discharge is possible.

[0011]

Embodiments of the present invention will be described in detail below with reference to the drawings. It should be noted that the plate material processing machine is intended for various presses and bending machines, and their mechanisms have already known structures, so detailed illustration and description thereof will be omitted.

Referring to FIG. 1, a plate material processing machine 1 is provided with a hydraulic cylinder 5 on an upper portion of a C-shaped frame 3, and an upper die 7 which is movable in the vertical direction by the operation of the hydraulic cylinder 5 is provided. ing. Although not shown, the work W is bent in cooperation with the lower mold.

A work supply / discharge device 9 is provided on the front side of the plate material processing machine 1. This work supply and discharge device 9
Is provided on a table 11 provided on the front surface of the plate material processing machine 1. That is, a stocker 13 is provided on one side surface (on the left side in FIG. 1) adjacent to the table 11, and a plurality of works W are loaded on the stocker 13 while being guided by the guide rods 15. A bracket 17 is erected on the upper surface of the stocker 13, and a fluid pressure-actuated cylinder 19 is vertically hung from an upper plate 17a of the bracket 17, and a plurality of suction actuators 21 that are vertically movable by the cylinder 19 are used. The vacuum pad is attached to the tip of the cylinder 19. An electromagnet may be used instead of the vacuum pad.

With the above structure, the uppermost work W of the works W loaded on the stocker 13 is sucked by the suction actuator 21 by the operation of the cylinder 19, and the cylinder 19 is moved.
And the work W is lifted to the transfer line.

A work receiving member 23 is provided on the side surface of the bracket 17. More specifically, referring to FIGS. 2 and 3, the work receiving member 23 includes a roller arm 29 in which a plurality of receiving rollers 27 are horizontally mounted on a hinge bracket 25 locked to the bracket 17.
Is attached via a hinge pin 31 so as to be vertically swingable. The receiving roller 27 is rotatably mounted on a piston rod 35 of a fluid pressure operated roller loading / unloading drive cylinder 33 mounted on a roller arm 29. Also,
A fluid pressure actuated roller arm swing drive cylinder 37 is rotatably provided on the hinge bracket 25, and a piston rod 39 of the roller arm swing drive cylinder 37 is provided.
The hawk end 41 provided at the tip of the roller arm 2 is
It is attached to 9 through a pin 43.

With the above construction, the operation is as shown in FIG.
As shown in FIG. 4, the work W sucked and raised by the suction actuator 21 is bent by its own weight as shown by a chain double-dashed line in FIG. At this time, the roller loading / unloading drive cylinder 33 is operated to move the receiving roller 27 forward so as to enter the lower part of the work W. Then, the roller arm rocking drive cylinder 37 is operated and the roller arm 29 is swung up around the hinge pin 31 so that the receiving roller 27 comes into contact with the lower surface of the work W and the transport height X-X line (pass line). Work W is increased to.

Since the sagging portion due to the weight of the work W is received by the rollers 27 and raised to the carrying height X-X line, the work W does not dance during carrying and stable carrying can be performed. .

Since it is not necessary to consider the sagging of the work W due to its own weight, the suction actuator 21 is set to the work W.
Since it is not necessary to dispose over the entire length and only the number necessary for lifting the suction is sufficient, the suction device can be simplified and the troublesome adjustment work can be reduced.

5 and 6, the work receiving member 23 is shown.
The second embodiment is different from that of the first embodiment in that the receiving roller 27 is provided integrally with the roller arm 29 without providing the roller loading / unloading drive cylinder 33 for moving the receiving roller 27 back and forth. The roller arm 29 is moved forward and backward. The same members as those in the first embodiment are designated by the same reference numerals and detailed description thereof will be omitted.

The work receiving member 23 is the bracket 1
7 is provided with a hinge bracket 45 that is integrally locked, and a plurality of guide rods 47 are attached to the hinge bracket 45. A roller arm holder 49 is attached to the guide rod 47 so as to be movable forward and backward. The roller arm 29 is attached to the holder 49 via a hinge pin 51.
Is swingable. The roller arm 29 is a piston rod 57 of a fluid-pressure-operated roller arm rocking drive cylinder 55 having one end engaged with the roller arm holder 49.
It is attached to a hawk end 59 provided at the tip of the pin via a pin 61.

A cylinder support plate 63 is provided on one side surface of the hinge bracket 45 so as to project therefrom.
A fluid pressure operated roller arm forward / backward drive cylinder 65 is engaged with the roller arm forward / backward drive cylinder 65, and a hawk end 69 fixed to the tip of a piston rod 67 of the roller arm forward / backward drive cylinder 65 is engaged with the roller arm holder 49 via a pin 71. is doing.

Further, on the roller arm 29, a receiving roller 27 is rotatably attached to the tips of a plurality of shafts 73 protruding in the horizontal direction.

With the above construction, when the roller arm front-back drive cylinder 65 is operated, the roller arm 29 becomes movable back and forth, and the receiving roller 27 provided on the roller arm 29 is inserted into the lower surface of the work W to support the work W. It is possible to position it at a position where it can. When the roller arm swing drive cylinder 55 is operated, the receiving roller 2
The work W can be supported at 7 and the work W can be raised to the conveyance height. Therefore, the effect can be the same as that of the first embodiment.

Next, referring again to FIG. 1, on the table 11 provided on the front side of the plate material processing machine 1, the work W constituting a part of the work supply / discharge device 9 is held, and the plate material processing machine 1 side is held. A work gripping device 75 is provided for supplying the work. The work gripping device 75 includes a work gripping member 77, and is provided so as to be movable in the horizontal direction with respect to the entire width of the plate material processing machine 1 by a clamp guide drive unit 79. Since this clamp guide drive unit 79 employs a mechanism having a known structure, a bracket 83 having a rail 81 extending in the left-right direction is provided on the table 11 and the rail 8 is provided.
The work gripping device 75 is mounted on the work piece 1, and the work gripping device 75 is movable in the left-right direction.

As the driving means, although not shown, for example, a timing belt stretched between pulleys (not shown) provided at the left and right ends of the bracket 83 via a rotation transmitting member by a driving source such as an electric motor. The work gripping device 75 is locked to 85.

With the above structure, the timing belt 85 runs by driving a drive source such as an electric motor, and the work gripping device 75 locked by the timing belt 85 becomes movable left and right, and the work W is placed at a predetermined position. Can be positioned.

The work gripping device 75 will be described in more detail. Referring to FIGS. 7, 8 and 9, as shown in FIG. 8, the work gripping device 75 is fixed to the base plate 87 locked to the timing belt 85 via the bracket 89.

The work holding device 75 includes a support body 91 fixed on a bracket 89 and a fluid pressure cylinder 93.
Clamp shaft 99 penetrating plate 97 is attached to the tip of piston rod 95 of cylinder 93.
Is installed. A flange portion 99a is integrally formed on the clamp shaft 99, and the flange portion 99a has a spring receiver 101 fitted at the tip of the piston rod 95 and the plate 97 so that the flange portion 99a is always in contact with the plate 97. A spring 103 is attached between them. The clamp shaft 99 is brought into contact with the surface of the plate 97 and positioned by the elastic force of the spring 103.

The support body 91 includes the cylinder 93.
A guide shaft 105 is mounted via a linear bearing 107 by being distributed to both sides around the center, the guide shaft 105 is fixed to the plate 97, and a stopper plate 109 is provided at the other end.

A U-shaped clamp receiver 111 is provided on the surface of the plate 97.
A link member 113 is provided inside 11. That is, in the link member 113, the first link 117 is rotatably provided on the clamp shaft 99 via the pin 115, and the L-shaped second link 121 is rotated on the first link 117 via the pin 119. The second link 121 is rotatably supported by the clamp receiver 111 via a shaft 123.

The clamp head 121a, which is the tip of the second link 121, is provided with a clamp piece 125, and a work W is held between the clamp head 121a and the work receiving portion 111a integrally projecting from the clamp receiving portion 111. It can be clamped and unclamped freely. Note that reference numeral 127
Is a ketobashi, and reference numeral 129 is a spring.

With the above structure, when the cylinder 93 is operated and the piston rod 95 is moved forward, the plate 97 is moved forward in the horizontal direction by the guide shaft 105 guided by the linear bearing 107 via the spring 103 to which the compression force is applied. . And the guide shaft 105
When the stopper plate 109 provided on the contact surface abuts on the rear surface of the support body 91, the advance of the plate 97 is stopped. When the cylinder 93 is further operated from this state and the piston rod 95 is moved forward, the spring 103 is compressed and only the clamp shaft 99 moves forward.
3, the clamp head 121a is swung, and the work receiving portion 111 provided at the lower end of the clamp receiving portion 111
The work W is gripped with a.

That is, the forward movement of the clamp shaft 99 activates the link member 113 to clamp the work W, and the reverse operation of the cylinder 93 first unclamps the work W and then the reverse work.

With the above-described structure and operation, the end portion of the work W sucked by the suction actuator 21 is carried into the gripping, gripping, and machining positions by the mechanical sequential operation of the work gripping member 77 including forward movement and clamp operation. To do.

Therefore, a reliable gripping force can be obtained, and the optimum gripping force can be obtained by changing the link length of the gripping portion and the thrust of the cylinder 93, and the work W is dropped during conveyance or misaligned. Since it does not occur, high-speed feeding and automation of work loading and unloading can be achieved.

The embodiment shown in FIG. 10 is a second embodiment of the work holding member 77. The difference from the first embodiment is that the mounting portion of the spring for pressing the link member 113 is different. Here is an example. The same members as those in the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

That is, the link member 113 is provided at the tip of the clamp shaft 99 mounted on the plate 97, and the spring locking shaft 131 is provided at the second link 121 of the link member 113. On the other hand, a spring locking shaft 133 is also provided on the plate 97, and the spring locking shaft 133 and the spring locking shaft 13 are provided.
1 and a spring 135 is stretched.

With the above structure, the clamp shaft 99 is moved forward by the operation of the cylinder 93, as in the first embodiment.
When the clamp shaft 99 is further advanced against the pulling force of the spring 135, the second member is moved through the link member 113.
The work W can be clamped by the clamp piece 125 provided on the link 121. Therefore, the effect can be the same as that of the first embodiment.

The embodiment shown in FIG. 11 is a third embodiment of the work holding member 77. The difference from the first embodiment is that the cylinder 93 for pressing the link member 113 is different.
In the embodiment in which a motor is used instead of the above, the same members as those in the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

That is, the support main body 91 is provided with a motor 137, and the output shaft of the motor 137 is provided with a screw shaft 139 which can be moved forward and backward. The screw shaft 139 is provided in the support main body 9.
It is screwed to the nut 141 provided on the No. 1. A link member 113 (not shown) is locked to the tip of the screw shaft 139. Moreover, the compression spring 143 is interposed between the plate 97 and the nut 141.

With the above configuration, the operation is as shown in FIG.
2 and FIG. 13, first the motor 13
7 is driven, the screw shaft 13 screwed into the nut 141
9 projects and the plate 97 moves forward until the stopper plate 109 of the guide shaft 105 provided on the plate 97 comes into contact with the support body 91 (see FIG. 12).
When the motor 137 is driven further, the screw shaft 1
The work piece 39 can be further advanced to hold the work W by the operation of the link member 113 (see FIG. 13). Therefore, the effect can be the same as that of the first embodiment.

Referring again to FIG. 1, the scratching device 143, which is one member of the work supply / discharge device 9, is provided in parallel with and adjacent to the work holding member 77 of the work holding device 75 described above.

More specifically, referring to FIGS. 7 and 9,
The kicker device 143 is provided on one side of the plate 97 (lower side in FIG. 7, left side in FIG. 9), and the pinion bracket 145 is integrally attached to the plate 97.
The pinion shaft 145 is attached to the pinion bracket 145.
7 is inserted and attached, and a pinion 149 is provided below the pinion shaft 147. The pinion 149 meshes with the rack 151 fixed to the support body 91, and
It also meshes with a rack 155 provided on a payout shaft 153 that penetrates the plate 97 and is movable in the front-rear direction. A kicking member 157 is attached to the tip of the payout shaft 153.

With the above structure, as the plate 97 moves forward by the operation of the cylinder 93, the payout shaft 153 moves forward by the racks 151, 155 and the pinion 149 by a length twice the forward moving length of the plate 97. As a result, the kicker member 157 can reach the center of the die of the plate material processing machine 1, and at the same time as the loading operation of the work gripping device 75, the work W that has been processed in the previous process can be discharged.

For this reason, since it is not necessary to separately provide a carry-out device, and the kicking device 143 is provided in association with the gripping operation of the work gripping device 75, the production tact can be improved and the structure can be simplified and the facility cost can be reduced. Can be achieved.

With the above-described structure, as a whole operation, the work W, which is a thin material loaded on the stocker 13 and is a thin plate, is adsorbed by the adsorption actuator 21 which is vertically driven by the cylinder 19 and stopped at the upper limit. To do. At this time, the receiving roller 27 is driven by the operation of the roller moving-in / out cylinder 33
Enters the lower part of the work W stopped at the upper limit and supports the work W from below.

Next, the work gripping device 75 waiting at the origin position advances, the work gripping member 77 securely grips the end of the work W at the forward end, and the suction of the suction actuator 21 is released. The work W is handed over. Then, the work gripping device 75 carries the work W into a predetermined processing position at high speed, and at the same time, the scratching device 143 discharges the work completed in the previous process. This completes the supply and discharge of the work W, unclamps the work W,
With the work W left at that position, the work gripping device 75 is retracted so as not to interfere with machining, returns to the original position, and waits.

During this time, the receiving roller 27 is moved back to the standby state so that the work gripping device 75 completes the loading of the work and, at the same time, does not support the suction of the next work. Thereafter, the above operation is repeated to supply and discharge the work W.

Therefore, the sagging of the work W can be prevented, the work W can be automatically set and the work can be automatically discharged at high speed, the work can be carried in and out automatically, and the production tact can be improved and the equipment can be simplified. The cost can be reduced.

The present invention is not limited to the above-described embodiments, but can be implemented in other modes by making appropriate changes. For example, the clamp piece 125 used in this embodiment has the same effect regardless of whether metal, plastic, rubber or the like is used, and the link lengths of the first link 117 and the second link 121 can be freely changed. The clamping force can be set freely.

[0051]

As can be understood from the above description of the embodiments, according to the present invention, since the construction is as described in the claims, the support of the short thin plate work by the receiving roller allows The work is prevented from sagging, and the work is grasped and replaced by the work holding device, and the work can be carried into a fixed position at a high speed for automation. Furthermore, by interlocking the kicking device with the operation of the work gripping device, it is possible to discharge quickly, speed up and automate the discharge of the work, improve the production tact, and reduce the equipment cost by downsizing the device. Can be achieved.

[Brief description of drawings]

FIG. 1 is a perspective view of a work supply / discharge device in a plate material processing machine according to an embodiment of the present invention.

FIG. 2 is a plan view of a work receiving member which is a main part of the present invention.

FIG. 3 is a side view of FIG.

FIG. 4 is an explanatory view of the action of the work receiving member.

FIG. 5 is a plan view showing a second embodiment of the work receiving member.

FIG. 6 is a side view of FIG.

FIG. 7 is a plan view of a work gripping device and a scratching device, which are main parts of the present invention.

8 is a cross-sectional view taken along the line VIII-VIII in FIG.

FIG. 9 is a side view seen from the right side in FIG.

FIG. 10 is a partial side view showing a second embodiment of the work holding device.

FIG. 11 is a partial plan view showing a third embodiment of the work holding device.

FIG. 12 is an operation explanatory view of the work gripping device in the third embodiment.

FIG. 13 is an operation explanatory view of the work gripping device in the third embodiment.

[Explanation of symbols]

 1 Plate Material Processing Machine 9 Work Supply / Discharge Device 21 Adsorption Actuator 23 Work Receiving Member 27 Receiving Roller 29 Roller Arm 33 Roller In / Out Drive Cylinder (Drive Member) 75 Work Gripping Device 77 Work Gripping Member 93 Cylinder (Drive Member) 113 Link Member 143 Kitsuka Equipment 149 Pinion 151 Rack 155 Rack 157 Kitka member

Claims (4)

[Claims] 1. A work supplying / discharging device for supplying or discharging a short work to a plate processing machine, supporting a work lower surface adsorbed by an actuator provided in the work supplying / discharging device and up to a work conveying height. Provided with a workpiece receiving member to be raised, and provided with a horizontally movable workpiece grasping device on the front side of the plate material processing machine for re-grabbing the workpiece supported by the workpiece receiving member, so that the workpiece completed in the pre-processing can be processed. A work supply and discharge device in a plate material processing machine, wherein a discharging device is provided adjacent to and parallel to the work holding device. 2. A roller arm provided with a drive member that allows a plurality of receiving rollers to move in and out in the horizontal direction is provided as the work receiving member so as to be vertically swingable. A work supply and discharge device in the plate material processing machine according to. 3. The work gripping device, wherein the work gripping member is provided by a driving member so as to be able to move forward and backward, and the work is gripped via a link member constituting the work gripping member. A work supply and discharge device in the plate material processing machine according to. 4. A skid member is provided as a skid device adjacent to and in parallel with the work gripping device, and the skid member can be moved forward and backward at a double speed via a rack and pinion in conjunction with forward and backward movement of the work gripping device. The work supply / discharging device in the plate material processing machine according to claim 1, wherein the work supply / discharging device is provided.