JPH04178231A - Method and device for carrying in and away work - Google Patents

Abstract

PURPOSE:To bear a lengthwise work with a work supporting body to serve for an auxiliary table by carrying away the work mounted on a soft pad to a work table of a plate working machine in carrying away and in the work, then, positioning a work supporting body on the work table when the carrying away of the work is completed. CONSTITUTION:The plate work W carried in one by one from a stock accumulating device 3 is mounted on a soft pad fitted to a slat conveyor 47 and carried away to the work table 107a of a plate working machine 5, and when this carrying away is completed, the work supporting body mounted on the slat conveyor 47 is positioned in adjacent to the work table 107a of the plate working machine 5 to complete the function of an auxiliary table. Consequently, even when the work W is lengthwise a projecting part from the work table 107a of the plate working machine 5 is born and can serve for the auxiliary table.

Description

[Detailed Description of the Invention] [Objective of the Invention] (Industrial Application Field) This invention is a method for transporting a plate-shaped workpiece that has been picked up and carried in from a material accumulating device to a work table of a plate processing machine. The present invention relates to a method for carrying in and carrying out a work, and an apparatus therefor, which also serves as an auxiliary table for the work table to support the protruding portion when the work is long.

(Prior Art) Conventionally, a plate-shaped workpiece that has been picked up and carried in from a material accumulating device has been carried in by a pinch roller that is vertically movable using a drive roller and a fluid pressure cylinder.

Furthermore, after a long workpiece is loaded onto the worktable of a plate processing machine, there are some machines in which the free bearing that supports the protruding portion can move out from the workpiece conveyance surface.

(Problem to be Solved by the Invention) By the way, the conventional workpiece loading/unloading device was designed to hold the workpiece between a drive roller and a vertically movable pinch roller, so the workpiece could easily slip on the point contact surface with the workpiece. There was a problem in that if the tip of the material hit the free bearing, the material would become slanted. The problem with this problem is that when the workpiece is a thin plate, the probability that the material itself escapes and becomes slanted is small, but as the thickness of the workpiece increases, the probability that it becomes slanted increases.

Therefore, in some cases, the free bearing was initially retracted from the delivery surface, and then protruded when the tip of the workpiece passed through.

In order to solve the above-mentioned problems, an object of the present invention is to provide a workpiece loading/unloading method and an apparatus therefor, in which the workpiece support body does not need to be moved in and out from the conveyance surface, and the workpiece being conveyed is not caught and tilted. It's about doing.

[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above object, the present invention provides a system in which a plate-shaped workpiece, which has been picked up and carried in from a material accumulating device, is mounted on a slat conveyor. The work is placed on a soft pad and carried out to the work table of the plate processing machine, and at the end of this carrying out, the work support attached to the slat conveyor is placed adjacent to the work table of the plate processing machine and functions as an auxiliary table. This is a method for loading and unloading workpieces, which is characterized by positioning the workpieces as best as possible.

Further, the present invention provides a work loading and unloading device for loading plate workpieces from a material accumulating device and transporting them to a plate processing machine, in which the upper surface of a rotatable slat conveyor is
A first region portion consisting of a plurality of soft pads with a length corresponding to at least the length of the workpiece, and a workpiece of an appropriate length that is positioned adjacent to the worktable when the workpiece is carried out to the plate processing machine. A workpiece loading/unloading device was constructed by including a second area portion consisting of a plurality of supported workpiece supports.

(Function) By employing the workpiece loading and unloading method and device of the present invention, when a plate-shaped workpiece is first conveyed from the material accumulating device, the slat conveyor rotates and the plurality of slat conveyors attached to the upper surface Due to the cushioning properties and frictional force of the soft pad, the work is transported to the work table of the next plate processing machine in a normal posture without tilting diagonally.

At the end of the workpiece transfer described above, the rotation of the slat conveyor is stopped. Then, the pad on the slat conveyor is rotated and transferred from the conveying surface, and then the plurality of workpiece supports attached to the slat conveyor are placed adjacent to the worktable of the plate processing machine. It will be positioned and stopped on the conveyance surface. Therefore, when the workpiece is long, the workpiece that protrudes from the worktable is supported by the plurality of workpiece supports, so this workpiece loading and unloading device also functions as an auxiliary table for the worktable of the plate processing machine. I can accomplish it.

Next, the processing of the plate material processing machine progresses and the workpiece is brought in.
When the pad is completely removed from the conveying surface of the unloading device, the slat conveyor rotates and is stopped just before the pad projects onto the conveying surface adjacent to the material accumulating device. This completes preparations for loading and unloading the next workpiece.

(Example) Hereinafter, an example of the present invention will be described in detail based on the drawings.

Referring to FIG. 3, the workpiece loading/unloading device 1 is placed between the material accumulating device 3 and the plate processing machine 5 and is used.

First, in the material accumulating device 31, a lifter 9 is installed at the bottom of a pedestal 7, and a large number of plate-shaped works W are stacked and accumulated on a pallet 11 placed on the lifter 9.

On the other hand, eight sprockets 13 with four axes are provided in the front, back, left and right from the bottom to the middle part of the pedestal 7, that is, to a position slightly higher than the top surface of the accumulated works W. A chain 15 is wound around each sprocket 13 on the left and right sides, and one of the four axes is rotated by a drive motor 17. Between the left and right chains 15, a slat roller 19 is connected and spanned approximately the length of the pedestal 7, thereby forming a slat conveyor 21.

On the other hand, a support plate 27 having a plurality of suction pads 25 suspended from the bottom thereof is connected to a fluid pressure cylinder 23 vertically installed from the upper part of the pedestal 7.

With the above configuration, when the material accumulating device 3 operates to pick up one workpiece W placed on the lifter 9, the slat roller device is used! ! The slat roller 19 connected to the chain 15 of 21 is kept on standby by rotating the drive motor 17 at a position where it does not interfere with suction and floating of the workpiece W. Then, the lifter 9 is raised to a predetermined position, the cylinder 23 is activated to lower the suction pad 25, the uppermost work W stacked on the lifter 9 is suctioned to the suction pad 25, and then the cylinder 23 is contracted. and lift the workpiece W.

Thereafter, the drive motor 17 is driven to position the slat roller 19 of the slat conveyor 21 to a position where the workpiece W can be placed. Then, the suction of the suction pad 25 is released and the workpiece W is placed on the slat roller 19, and then the drive motor 17 is driven to transfer the workpiece W placed on the slat roller 19 to the workpiece loading and unloading device 1. be transported to.

Next, the work loading/unloading device 1 will be explained in detail with reference to FIGS. 1 and 2.

A base frame 29 having a rectangular window shape in plan is horizontally installed on the ground, and conveyor mounts 31 having pistol-shaped sides are integrally provided on the left and right sides of the base frame 29. As shown in the figure, five pairs of sprockets 33 are rotatably attached to the inside of five corners of this conveyor frame 31, and a pair of chains 35 are wound around them.

The front lower sprocket 3
3 are connected by a tuning shaft 37. Furthermore, this tuning axis 3
7 also protrudes to the left outside of the base 29, and another sprocket 39 is attached thereto. And, it is designed to be chain driven by a drive motor 41.

Between the pair of chains 35, crushed tubular carrier pipes 43, 45 are connected and spanned, forming a slat conveyor 47.

The carrier pipe 43 spans the entire width of the outer surface corresponding to the outer surface of the slat conveyor 47, and has a plurality of pads 49 made of a soft material such as rubber attached at points. or,
The carrier pipe 45 has a plurality of free bearings 51, which serve as work supports, attached at points across the entire width so that balls protrude from the outer surface.

In the positional state shown in FIG. 1, the slat conveyor 47 is
The front ball hangs down from the excavation sprocket 33 (upper left of the figure),
A carrier pipe 43 is provided spanning the length of the lower rear, middle rear, and upper ejection sprockets 33 and the workpiece W. Following this carrier pipe 43, a carrier pipe 45 is provided extending horizontally from the lifting sprocket 33 forwardly in the figure for about half the length of the workpiece W.

In FIG. 1, the slat conveyor 47 moves between five pairs of sprockets 33 by rotating clockwise in the figure. The one at the end is designated as a carrier pipe 43h, and the last one is designated as a carrier pipe 43e. Similarly, the leading end of the carrier pipe 45 to which the free bearing 51 is attached is designated 45h, and the trailing end is designated 45e. Note that fixed free bearings 51 are also provided on the upper surfaces of the front and rear horizontal frames at the top of the conveyor frame 31.

Furthermore, the position of the slat conveyor 47 in FIG.
The workpiece loading and unloading device [1 is the position where the receiver receives one workpiece W brought in from the slat conveyor 21 of the material accumulating device 3, and is also the position of the auxiliary table of the work table (described later) of the plate processing machine 5. It is also a position where you play a role. Therefore, when the slat conveyor 47 is stopped, it will be at the position shown in FIG. A sensing piece 57 is attached to an appropriate location on the back surface of 43.

Next, struts 59a and 59b are integrally attached to the right side of the base frame 29 and the conveyor frame 31 in front and behind.

An arm frame 61 having a rectangular window shape in plan is provided at the top of these supports 59a and 59b, and the tip thereof extends to above the center of the slat conveyor 47. A member of the arm frame 61 located above the slat conveyor 47 and extending in the front-rear direction is referred to as a tip member 61a. An upper rail support member 63 extending in the front-rear direction by upper hanging members (not shown) provided before and after the tip member 61a.
The upper rail 65 is fixed in a hanging manner, and an upper rail 65 is attached to the right side of the upper rail support member 63.

Below the upper rail support member 63 is a lower hanging member 67.
A lower rail support member 69 extending in the front-rear direction is suspended and fixed by a lower rail support member 69, and a lower rail 73 and a chain guide 75 extending in the front-rear direction are attached below this lower rail support member 69 via an angle member 71. .

On the other hand, the vertical cage base plate 77 is supported by the upper rail 65 so as to be slidable in the front and back direction by an angle member 79 attached to the upper part, and is supported by the upper rail 65 so as not to come off.
It is hooked on the groove 65a. Also, cage base plate 7
7 is supported by a Z-shaped steel 81 attached near the bottom so as to be slidable in the longitudinal direction on the lower rail 73, and is also fixed to one of the chains described below.

On the other hand, a support plate 83 is fixed to the lower end of the cage base plate 77, and a plurality of suction pads 85 are provided at points in the left-right direction so as to be slidable in the vertical direction.

These suction pads 85 are operated in the vertical direction by a fluid pressure cylinder 87. The above-mentioned parts constitute a suction cage 89 that is movable in the front and back direction.

Further, the suction pad cage 89 is attached to the upper rail support member 6.
Drive motors 91 provided at the front and rear of the device 3 allow the device to be slid back and forth via chains 93 and 95. The chain 95 is wound around sprockets provided at the front and rear of the lower rail support member 69, and its top pieces are fixed to the Z-shaped steel 81 as described above, and its lower part is guided by the chain guide 75. ing. Note that a limit switch 97°9 is attached to the tip member 61a.
9 is attached to restrict the movement limit of the suction pad cage 89 in the front and back direction.

The operation of the work loading and unloading device W11 with the above configuration will be explained with reference to FIGS. 1 and 2.

First, the slat conveyor 21 of the material accumulating device 3 carries in a piece of work W, and the tip of the work W is brought in by the slat conveyor 21 of the material accumulating device 3.
When the workpiece W reaches the front end, the drive motor 41 rotates and the slat conveyor 47 starts carrying the workpiece W from the front to the rear (from the left to the right in FIG. 1). Since the starting position of the slat conveyor 47, that is, the stopped position is as shown in FIG. 43 will come into contact, so
The workpiece W is conveyed from the front to the rear in a good posture without slipping. Then, the tip of the workpiece W is connected to the upper sprocket 33.
When it reaches the top, the suction pad 85 attached to the suction pad cage 89, which had been moved to the frontmost position in advance, is lowered by the cylinder 87 to near the rear end of the workpiece W, as shown by the two-dot chain line in FIG. Adsorb the top surface of. Then, the drive motor 91 also starts rotating, and the suction pad cage 89 moves backward via the chains 93 and 95, so that the work W
Coupled with the action of the carrier vibe 43 with the pad 49, even if the tip collides with the free bearing 51 fixed to the horizontal frame of the conveyor frame 31 or the free bearing fixed to the work table of the plate processing machine 5, , it is transported in the correct posture without tilting to the left or right.

Then, since the slat conveyor 47 and the suction pad 85 continue to move rearward, the rear end of the workpiece W eventually passes over the upper rear sprocket 33. Then, the sensing piece 57 is sensed by the deceleration sensor 53, and the slat conveyor 47 is decelerated. Furthermore, when the stop sensor 55 also senses it, it stops at the position shown in FIG. At this time, the last bad 4
The carrier pipe 43e marked with 9 moves below the conveyance surface of the workpiece W, and instead, a free bearing 51 is attached to the conveyance surface from the rear end to the front near the center of the carrier pipe 45h, 45. 45 The column e is moving.

However, the suction pad 85 continues to move backward, and the workpiece W
The work W is carried out until the rear end completely reaches the work table of the next plate processing machine 5. That is, the suction pad 85 is moved to the rearmost position as shown by the solid line in FIG. At this point, the suction pad 85 releases the workpiece W and is pulled up by the cylinder 87. and,
Since the drive motor 91 is reversed, the suction pad cage 8
9 is returned to the frontmost position again, and preparations for carrying out the next workpiece W are completed.

By the way, the loading and unloading of the workpiece W has now been completed, but if the workpiece W is long and the plate processing machine 5
If it protrudes from the work table of conveyor stand 3.
Since a row of carrier pipes 45 to which free bearings 51 of a slat conveyor 47 are attached are lined up above the workpiece loading/unloading device 1, the workpiece loading/unloading device 1 can also serve as an auxiliary table for the worktable of the plate processing machine 5. However, after the work W enters the plate processing machine 5, it also moves downward perpendicular to the plane of the paper in FIG. 3, that is, to the right in FIG. As shown on the right side of the figure, a fixed side table 10 has a free bearing 51 fixed to its upper surface.
1 is provided.

Now, the plate processing machine 5 will be explained with reference to FIG.

The above-mentioned material accumulation bag W3 and workpiece loading/unloading device 1 have different definitions in the front, back, left and right directions, so they will be defined again. The left and right sides in FIG. 3 are the left and right, and the front side perpendicular to the plane of the paper is the front, and the back side is the rear direction.

A base 105 is provided at the bottom of the frame 103, and left and right work tables 107a and 107b are provided on this base 105, supported by pillars provided at the left and right ends. Further, a central work table 107c supported by a support column is provided on the base 105. These left and right work tables 107a', 107b
A plurality of free bearings 10'9 are embedded in the upper surface of the central work table 107c.

Further, on the left and right sides of the base 105, there are 1 extending in the front and back direction.
A pair of rails 111 is provided, and the carriage base 11 is guided by the rails 111 and is connected to the carriage base 11 via the rollers and supports.
3 is provided so as to be slidable in the front-back direction by a servo motor and a feed screw (none of which are shown).

A carriage 115 is provided inside and on the front surface of the carriage base 113 and is slidable left and right, and is similarly driven by a servo motor and a feed screw (none of which are shown). A plurality of clamp devices 117 are attached to the front surface of the carriage 115 at appropriate positions using tightening screws with handles. Furthermore, a Y-axis positioning member 119 is embedded in this clamping device 117, which contacts the workpiece W and senses its position.

A vertically protruding and retractable left X-axis positioning member 121a is provided at the left end of the left work table 107a, and a right X-axis positioning member 121b is also provided at the right end of the right work table 107b.

Further, a mounting arm 125 projecting rearward is fixed onto a support post 123 mounted on the front surface of the carriage base 113, and an origin positioning device 127 is mounted on the tip of the mounting arm 125. This origin positioning device 127
29 is provided so that it can be raised and lowered freely by a lifting cylinder,
A base member 131 is rotatably provided below this. Furthermore, from the base member 131, the guide member 13 is horizontally inserted.
3 is horizontally extendable and retractable by a cylinder (not shown). Further, a pad 135 using an electromagnet or vacuum suction is hung from the tip of the pad 135.

Next, at the rear of the base 105, a lower turret 137 housing a plurality of dies (not shown) is rotatably supported.

Further, a plurality of punches 13 are provided at the rear of the upper part of the frame 10B.
The upper turret 141 housing the turret 9 is rotatably supported by a shaft, and is rotated by a servo motor (not shown) or the like in synchronization with the lower turret 137.

On the other hand, a crank device 14 is located in the upper center of the frame 103.
3, and a striker 145 is provided so as to be vertically movable via a ram.

From the above configuration, the operation of the plate processing machine 5 is as follows:
With the shaft positioning member 121a retracted, the work W carried into the left work table 107a from the left side is
After being attracted to the pad 135 that has been lowered by the elevating member 129 of the origin positioning device 127, it is lifted a little to make it easier to move. The origin positioning device f [12
7 is a base member] Due to the rotation of the base member 31 and the horizontal movement of the guide member 133, the mounting arm 125 is attached to the carriage base 1.
Even if the pad 135 is not moved by the pad 33, it is possible to easily horizontally move the pad 135 in the X-axis 2Y-axis directions (left and right 1 front-rear directions) within a small range. As a result of this operation, the workpiece W hits the protruding left X-axis positioning member 121a and the Y-axis positioning member 1]9 to be positioned at its origin, and then is clamped by the clamping device [17].

If the work W is long, a part of it protrudes to the left of the left work table 107a, so the left X-axis positioning member 1
21a cannot be used due to interference, so right X-axis positioning member 1
21b is used. In this case, the origin positioning device W11
27 can be attached to the right side of the Y-axis moving body 113 to easily determine the origin position. Furthermore, it is necessary to install a sufficient number of clamp devices W117 over the entire width of the carriage 115.

Now, the workpiece W clamped by the clamp device 117 is moved by the carriage 115 and the carriage base 1]3 to
, and are moved along the Y axis to a processing position directly below the punch 139 at the rear. At this time, even if the workpiece W is long, the part that protrudes to the left is the workpiece loading and unloading equipment W1.
Since it is supported by the fixed side table 101, there is no problem.

When the workpiece W is positioned at the processing position, the striker 1
45 is lowered by the crank device 143 and punch 139
Punch 139 hits lower turret 137 because it hits 0 head.
The workpiece W is punched in cooperation with a goo provided in the punching machine.

According to the above explanation, the effect of the workpiece loading/unloading device 1 is that when the workpiece W is being conveyed, the slat conveyor 4
In addition to the pad 49 having a large frictional force of 7 being in surface contact,
Even if the tip of the work W collides with the free bearing 51 fixed to the horizontal bar at the rear end of the conveyor frame 31 or the free bearing 109 embedded in the left work table 107a of the plate processing machine 1, it will not be tilted left or right. The workpiece W is surely carried out without slipping in the correct posture.

Further, the protruding portion of the long work W is also supported by the free bearing 51 of the slat conveyor 47, and serves as an auxiliary table for the left work table 107a. For example, even when a long work W is moved to the processing position on the work tables 107a, 107C, and 107b, the fixed side table 101 can sufficiently serve as an auxiliary table for the left work table 107a. .

Note that this invention is not limited to the embodiments described above, but can be implemented in other forms by making appropriate changes.

[Effects of the Invention] As can be understood from the above description of the embodiments, according to the present invention, when a work is carried in and out, the back surface of the work is brought into surface contact with a soft pad provided on the upper surface of the slat conveyor. Since the workpiece is conveyed in this manner, even if some impact is applied to the workpiece, the workpiece can be accurately conveyed in the correct posture without being tilted.

In addition, after the work is carried out to the plate processing machine, the work support is rotated on the top surface of the stopped slat conveyor near the plate processing machine, so even if the work is long, the plate It can also serve as an auxiliary table by supporting the part that protrudes from the work table of the processing machine.

[Brief explanation of the drawing]

FIG. 1 is a right side view of the work loading and unloading device of the present invention,
FIG. 2 is a schematic drawing, and FIG. 3 is a side explanatory view showing the relationship between the material accumulating device at the front stage and the plate material processing machine at the rear stage. 1... Work loading and unloading device 3... Material accumulating device 5... Plate material processing machine 47...
Slat conveyor 49...Pad 51...Free bearing W...Work 107a...Left work table Agent Patent attorney Hidekazu Miyoshi

Claims (2)

[Claims] (1) A plate-shaped work piece is picked up and carried in from the material accumulating device, is placed on a soft pad attached to a slat conveyor, and carried out to the work table of the plate processing machine, and at the end of this carrying out. A workpiece loading and unloading method, characterized in that a workpiece support mounted on the slat conveyor is positioned adjacent to a worktable of the plate processing machine so as to function as an auxiliary table. (2) A workpiece loading/unloading device for loading plate workpieces from a material accumulating device and conveying them to a plate processing machine, wherein a plurality of workpieces with a length corresponding to at least the length of the workpieces are installed on the upper surface of a rotatable slat conveyor. a first area consisting of a soft pad; and a second area consisting of a plurality of work supports that support workpieces of appropriate length that are positioned adjacent to the work table when the workpiece is carried out to the plate processing machine. A workpiece loading and unloading device comprising: a region section;