JPH05238539A - Workpiece distributing device - Google Patents

Abstract

PURPOSE:To perform distribution of workpieces by using a plurality of workpiece storage parts in common relating to a plurality of work machines. CONSTITUTION:A guide rail 37 is provided over upward of the first conveying table 31 connected to the work machine 7 and the second conveying table 33 connected to the second work machine 9, of machining a workpiece, and workpiece storage parts 35A, 35B of storing a plurality of workpieces to be machined are provided in a plurality of parts in a position downward of this guide rail 37. Further, the first/second workpiece conveyers 41A, 41B, which can convey the workpiece of each workpiece storage part 35A, 35B respectively to the first/second conveying tables 31, 33, are individually and movably mounted to the guide rail 37.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a first transfer table connected to a first processing machine and a second transfer table connected to a second processing machine.
And a work distribution device for distributing the work to the transport table.

[0002]

2. Description of the Related Art Conventionally, as a device for distributing a work to each conveyance table connected to a plurality of processing machines, a processing machine is arranged corresponding to each processing machine to store a workpiece Generally, a work is supplied to the work.

[0003]

Conventionally, a work storage unit is generally arranged corresponding to a processing machine. Therefore, when a plurality of types of works are supplied to the processing machine, each processing machine is provided. Therefore, there is a problem that a plurality of work storage parts are required corresponding to the above and a large area is required.

[0004]

In view of the above-mentioned problems, the present invention provides a first transfer table connected to a first processing machine for processing a workpiece and a second transfer table connected to a second processing machine. A guide rail is provided over the transport table of
A plurality of work storage parts that store a plurality of works to be processed are provided at a position below the guide rail, and the first work transfer device and the first work transfer device that can transfer the works of the respective work storage parts to the first transfer table. A second work transfer device capable of being transferred to the second transfer table is separately movably mounted on the guide rail.

[0005]

With the above structure, each work transfer device movably mounted on the guide rail can be moved to a position corresponding to a plurality of work storage portions arranged below the guide rail. Then, the works in the respective work storage units can be carried to the respective carrying tables located below the guide rails by the respective work carrying devices.

That is, it is possible to commonly use a plurality of work storage parts for each work transfer device, and it is possible to save space in the overall structure.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following, the embodiments of the present invention will be described, and for the sake of easy understanding, the overall structure of the apparatus to which the present invention is applied and the related apparatus will be schematically described.

Referring to FIG. 1, a processing line device 1 for bending a plate material includes a first processing line 3 for bending a first bending part and a bending for a second bending part. A second processing line 5 for processing is provided in parallel. In the first and second processing lines 3 and 5, first and second bending processes are performed on two sides of the plate W, which are located on the processing line in a direction orthogonal to the transfer direction of the plate material W. Bending devices 7 and 9 are arranged.

As is apparent from FIG. 1, the first and second folding devices 7 and 9 are provided so as to be displaced in the transport direction of the plate material W. Therefore, since the first and second bending devices 7 and 9 do not interfere with each other, the first and second processing lines 3 and 5 can be arranged closer to each other.

Third and fourth processing lines 11 and 13 are connected to the first and second processing lines 3 and 5, respectively, and the third and fourth processing lines 11 and 13 are connected to Third and fourth bending devices 15, 17 for bending the other two sides of the plate material W are arranged. The third and fourth
The processing lines 11 and 13 are arranged parallel to each other, and the third and fourth folding processing devices 15 and 17 are arranged so as to be displaced in the transport direction of the plate material W.

Further, the third and fourth processing lines 11, 1
Fifth and sixth machining lines 19 and 21 are connected to 3 respectively, and the fifth and sixth machining lines 19 and 21 are joined at a joining position 23.

By the way, the first to fourth bending devices 7, 9, 15 and 17 simultaneously bend two sides located in a direction orthogonal to the transport direction of the plate material W sent in. For processing, a pair of suitable bending machines such as a tangent bender are arranged so as to face each other in a direction orthogonal to the transport direction of the plate material W. And
The pair of bending machines are provided with adjustable intervals so as to correspond to the width of the plate material W.

A pair of bending machines are known, and the mechanism for adjusting the distance between the folding machines may be, for example, a known screw mechanism having right and left screws. Therefore, the detailed configuration and description of the bending apparatus will be omitted.

In the embodiment of FIG. 1, the first machining line 3, the third machining line 11 and the fifth machining line 19 are connected orthogonally to each other, and the second machining line 5 and the fourth machining line are connected. 13 and the sixth processing line 21 are connected orthogonally to each other. Therefore, the cross conveyors 25 for transferring the transferred plate material W in the orthogonal direction are arranged at the connection parts of the respective processing lines.

The cross conveyor 25 is provided with a plurality of rollers for transporting the plate material W in one direction rotatably, and a plurality of belts for transporting the plate material in a direction orthogonal to the one direction. It is something that can be freely appearing and appearing in the meantime. Therefore, the plate material can be transported in the orthogonal direction by transporting the plate material in one direction by the plurality of rollers and then projecting the belt from between the rollers to perform the material transporting action. The cross conveyor 25 may have a configuration in which a plurality of rollers in orthogonal directions are relatively retractable, and a publicly known configuration may be used as long as the plate material can be transferred in the orthogonal directions. A detailed description thereof will be omitted.

Further, each of the first to fourth folding devices 7,
On the front side in the loading direction of the plate material W with respect to 9, 15, and 17,
It is arranged from a positioning table device 27 having a reference positioning device for positioning the plate material W at the reference position.

The first and second processing lines 3 and 5 are connected to a work distribution device 29 in order to flow an appropriate plate material W to the first and second processing lines 3 and 5.

More specifically, the work distribution device 29 described above.
Comprises a first transport table 31 connected to the first processing line 3 and a second transport table 33 connected to the second processing line 5. Then, between the first and second transfer tables 31 and 33, the first and second work storage parts 35A and 35B that store the plate materials to be supplied to the first and second processing lines 3 and 5, respectively. Are placed, and the first and second
A guide rail 37 is provided over the work storage sections 35A, 35B and the upper positions of the first and second transport tables 31, 33.

Both ends of the guide rail 37 are provided with columns 39.
The guide rail 37 is supported by the first and second conveyance tables 31 and 33 that lifts the plate material from the first and second work storage sections 35A and 35B and conveys it to the first and second conveyance tables 31 and 33. The work transfer devices 41A and 41B are separately mounted so as to be movable.

Further, in front of the work distributing device 29, a pallet provided with a plurality of storage shelves in a plurality of rows and a plurality of storage shelves for storing a large number of pallets (not shown) loaded with plate materials of various materials and sizes. The storage shelf main body 43 is arranged, and the pallet storage shelf main body 43 and the work distribution device 29 are arranged.
In between, the pallets are taken out from the respective storage shelves of the pallet storage shelf main body 43, and the first and second work storage parts 3 are provided.
There is provided a pallet transfer device 45 that can transfer the empty pallets to the storage shelves from the first and second work storage sections 35A and 35B, and can transfer the pallets to the storage shelves 5A and 35B.

The pallet transfer device 45 includes a traveling frame body 47 that can travel on rails laid along the pallet housing main body 43, and a fork device 49 supported by the traveling frame body 47 so as to be vertically movable. It will be.

In the above construction, the traveling frame 47 in the pallet transfer device 45 is attached to the pallet storage shelf body 4.
By moving the fork device 49 appropriately along the traveling frame 3 and moving the fork device 49 up and down with respect to the traveling frame 47, the fork device 49 can be used as a storage rack at a proper position of the pallet storage rack main body 43. Position accordingly.

Then, the fork device 49 is moved from the storage rack to the fork device 49.
After the pallet is pulled up, the pallet is loaded and positioned in the first work storage section 35A in the work distribution device 29, and then a separate pallet is taken out from another storage rack and loaded and positioned in the second work storage section 35B. To do.

After the pallets loaded with the plate materials are loaded and positioned in the first and second work storage portions 35A and 35B of the work distribution device 29 as described above, the respective work storage portions 35 are placed.
By transporting the plate material W from A and 35B onto the first and second transport tables 31 and 33, the plate materials W on the first and second transport tables 31 and 33 are respectively processed into the first and second processing lines. It is transported to 3, 5 and the first and second processing lines 3,
After being positioned at the reference position by the positioning table 27 provided in 5, the sheet is carried into the first and second bending devices 7 and 9, and the two sides in the direction orthogonal to the transport direction are bent. To be done.

The first and second folding devices 7,
The plate material W bent by 9 is sent to the cross conveyor 25, and is carried into the 3rd and 4th processing lines 11 and 13 in the orthogonal direction by this cross conveyor 25, and these 3rd and 4th processing lines. The other remaining two sides are bent by the third and fourth bending devices 15 and 17 arranged at 11 and 13, respectively.

After that, the fifth and sixth processing lines 19, 21
The plate materials that have been sent to and are separately bent are merged and combined at the merge position 23 between the fifth processing line 19 and the sixth processing line 21.

In other words, in the processing line device 1, it is easy to combine the separate bending parts, which are separately bent through the first processing line 3 and the second processing line 5, at the confluence position 23. be able to.

By the way, in this embodiment, the first,
The third and fifth processing lines 3, 11, and 19 have a line configuration orthogonal to each other, and the second, fourth, and sixth processing lines 5, 1
Lines 3 and 21 are orthogonal to each other, and a cross conveyor 25 is arranged in the orthogonal portion. However, the third and fourth
If a rotary table that horizontally rotates the plate W by 90 ° is used instead of the cross conveyor 25 arranged in front of the folding devices 15 and 17, the first and third folding devices are provided. The processing devices 7, 15 and the second and fourth folding devices 9, 17 can be arranged linearly. That is,
It is possible to linearize the first and third processing lines 3 and 11 and the second and fourth processing lines 5 and 13.

Next, details of main parts constituting the processing line device 1 will be described.

As described above, the work distributing device 29 includes the side of the first transfer table 31 and the second transfer table 3.
The guide rails 3 are attached to the columns 39 arranged on the sides of the guide rails 3.
Both end portions of 7 are supported, and the first and second work transfer devices 4 are mounted on the guide rail 37.
1A and 41B are individually movably supported.

The first and second work transfer devices 41A,
Since 41B has a symmetrical configuration, one work transfer device 41B will be described in detail, and description of the other will be omitted.

Referring to FIGS. 2 and 3, rail members 51 are attached to the upper and lower surfaces of the guide rail 37 so as to extend in the longitudinal direction of the guide rail 37, and a rack 53 is mounted on the upper surface of the rail 53. It is mounted parallel to the member 51.

The first and second work transfer devices 41A,
41B includes a traveling frame 55 which is guided by the guide member 51 and is capable of traveling. This running frame 55
Is arranged above the guide rail 37, and a support plate 57 is vertically attached to one side of the traveling frame 55. A roller bracket 59 corresponding to the lower guide member 51 is attached to the lower end of the support plate 57.

A plurality of guide rollers 61 holding a lower guide member 51 are rotatably attached to the roller bracket 59, and a plurality of guide rollers holding the upper guide member 51 are attached to the traveling frame 55. 63 is rotatably mounted, and a rolling support roller 65 is rotatably mounted on the upper surface of the upper guide member 51.

A frame 55 is formed along the guide member 51.
A servomotor 67 is mounted on the traveling frame 55 for moving the vehicle, and a pinion 69 provided so as to interlock with the output shaft of the servomotor 67 is meshed with the rack 53.

Therefore, it will be understood that the traveling frame 55 is guided and moved by the guide member 51 by appropriately controlling and driving the servo motor 67.

The first and second work storage portions 35A, 3
A plurality of vertical guide blocks 69 are attached to the support plate 57 for adsorbing and lifting the plate material W on the pallet positioned in 5B.
An elevating rod 71 is vertically guided and supported by 9 via a rail member.

A fluid pressure cylinder 73 is mounted on the support plate 57 to move the elevating rod 7 up and down.
In this fluid pressure cylinder 73, a vertically movable piston rod (not shown) is connected to an elevating plate 75 connected to the lower end of the elevating rod 71. An appropriate number of adsorption devices 77 such as vacuum pads or electromagnets that adsorb the plate material W are attached to the lower surface of the lift plate 75.

With the above configuration, each work transfer device 41
By appropriately controlling the servo motors 67 of A and 41B, the work transfer devices 41A and 41B are controlled.
B can be run individually along the rail member 51, and the work transfer devices 41A and 41B can be moved to the work storage portions 35A and 35A, respectively.
It can be positioned in the upper position corresponding to 35B.

After that, the respective work transfer devices 41A, 41B
By operating the fluid pressure cylinder 73 and lowering the elevating plate 75, the plate material W can be adsorbed by the adsorption device 77 provided in the elevating plate 75.

Therefore, according to this embodiment, the first and second work storage portions 35A and 35B are connected to the first and second work storage portions 35A and 35B.
There is one in which the plate material W can be individually transported onto the second transport tables 31 and 33, and the plate material W can be individually supplied and carried into the first and second processing lines 3 and 5.

The transport tables 31 and 33 are, for example, roller tables and the like, and their constructions are well known. Therefore, the detailed construction and operation of the transport tables 31 and 33 will be omitted.

The positioning table 27 for positioning the plate material W at the reference position on the front side of the bending apparatus 7.
Are configured as shown in FIGS.

That is, the positioning table device 27
On the upper part of the base 79 of FIG.
In the figure, roller conveyors 81A and 81B are provided which are divided to the left and right when viewed in the left direction and the arrow A direction). In each of the roller conveyors 81A and 81B, a large number of transport rollers 8 are provided.
Belt conveyors 89A and 89B for carrying the plate material W in synchronization with the material feeding roller 83 are provided on the inner frame 87 in which the roller frames 85 rotatably supporting 3 are opposed to each other.
Is provided.

The belt conveyors 89A and 89B include a plurality of pulleys 9 rotatably attached to the inner frame 87.
It is supported by 1. A magnet 93 for pressing the plate material W onto the belt conveyors 89A and 89B is attached at an appropriate position of the inner frame 87.

The material feeding roller 83 and the belt conveyor 89
In order to drive A and 89B synchronously, a motor 95 is attached to the base 79, and a drive belt 97 rotated by the motor 95 is a drive shaft 99 rotatably supported by the base 79. It is hung around via a pulley. On the drive shaft 99, driven belts 101A and 101B wound around the end of the material feeding roller 83 are wound via pulleys, and a driven belt 101C is also wound around. The driven belt 101C is wound around a driven shaft 103, which is rotatably supported by the base 79, via a pulley. The driven shaft 103 has the belt conveyors 89A and 89B.
Is running around.

With the above structure, it will be understood that by driving the motor 95, the feeding rollers 83 of the roller conveyors 81A and 81B and the belt conveyors 89A and 89B simultaneously feed the plate material W in the same direction. ..

In order to control the drive of the motor 95,
The table device 27 is provided with sensors S1, S2, S3. The sensor S1 detects that the plate material W has been carried in and operates to start the motor 95. The sensor S2 decelerates the motor 95 when the plate material W is conveyed and the leading end of the plate material W is detected. It acts to do. Then, the sensor S3 functions to stop the driving of the motor 95 when the tip of the plate W is detected.

Therefore, from the previous process, the table device 27
When the plate material W is transferred to, the motor 95 is automatically started to convey the plate material W, and when the leading end of the plate material W reaches a predetermined position, the motor W is automatically stopped to move the plate material W in the transfer direction. Positioning is performed.

As described above, after the plate material W is transferred onto the table device 27 and the feeding is stopped, the reference positioning device 105 for positioning the plate material W at the reference position in the direction orthogonal to the material feeding direction is provided. ing.

More specifically, a base 107 (see FIG. 5) is attached to the base 79 in a direction orthogonal to the direction of transfer of the plate material W by the roller conveyors 81A and 81B, and the base 107 is attached to the base 107. Guide rail 10
A pair of sliders 111A and 111 movable along
B is provided.

The pair of sliders 111A and 111B
At the position below the material feeding roller 83 on the roller conveyors 81A and 81B (see FIG. 4,
5, a plurality of rigid rollers 113 protruding from between the material feeding rollers 83 are rotatably attached to the upper surfaces of the sliders 111A and 111B.

In order to move the sliders 111A and 111B toward and away from each other, the sliders 111A and 111B are moved.
A nut member 115 is attached to each B, and the right screw and the left screw of the screw bar 117 having a right screw and a left screw are separately screwed to each nut member 115. The screw bar 117 is rotatably supported by the base 107 (details of the supporting state are not shown),
A belt 121 driven by a motor 119 attached to the base 107 is wound around a pulley attached to the end of the screw rod 117.

Therefore, by appropriately driving the motor 119 and appropriately rotating the screw rod 117 in the forward and reverse directions via the belt 121, the right and left screws of the screw rod 117 are screwed with the nut member 115. , A pair of sliders 1
11A and 111B will approach and separate from each other in a central distribution manner.

Therefore, the sliders 111A and 111B are
The roller conveyor 81 by bringing the rollers closer to each other.
The plate material W on the material feeding roller 83 in A and 81B is held in the center of the table device 27 in such a manner that it is clamped from both sides by the hard roller 113.

That is, in the table device 27 of this embodiment, the central portion of the table device 27 is the reference position, and the center of the plate material W is aligned with the center of the table device 27. ..

The pair of sliders 111A and 111B
When one of them is fixed and the other is movable, the position of the rigid roller 113 provided on the fixed slider becomes the reference position, and one side of the plate W is positioned at the reference position. Becomes

As described above, the pair of sliders 111A, 1
When the plate material W is sandwiched by the hard roller 113 provided in 11B and positioned at the reference position, when the plate material W is carried into the folding device 7 by driving the material feeding roller 83 and the belt conveyors 89A and 89B. If even a slight amount of meandering occurs, it becomes difficult to accurately feed the sheet material W to the bending apparatus 7 although the sheet material W is positioned at the reference position.

Therefore, the bending device 7 is used with the plate material W being positioned at the reference position without any positional deviation.
A plate material transfer device 123 for transferring the plate material is provided.

More specifically, as schematically shown in FIG. 7 and FIG. 8, the bending from the table device 27 is located above the center of the table device 27 in the direction orthogonal to the transfer direction. A guide beam 125 extending across the processing device 7 is provided.

The guide beam 125 is supported by a gate-shaped compound column strut 127 that straddles the table device 27, and on a gate-type strut 129 erected at a lateral position of the folding device 7. It is supported.

A work clamp 131 on the front side and a work clamp 133 on the rear side capable of holding the front and rear portions of the plate W in the transfer direction are provided below the guide beam 125.
The table device 27 is movably supported between the folding device 7 and the front work clamp 131 and the rear work clamp 133.
Adjustable according to the length of the.

More specifically, as shown in FIGS. 9 and 10, the guide rail 1 is provided on the lower surface of the guide beam 125.
A bearing block 139 (see FIG. 9) rotatably supporting a front end portion of a hole screw 137 parallel to the guide rail 135 is movably supported by the guide rail 135 via a slider 141. ing. Further, the bearing block 14 in which the rear end portion of the ball screw 137 is rotatably supported on the guide rail 135.
3 is movably supported by a slider 145.

That is, the ball screw 137 is rotatably supported at both front and rear ends thereof and has sliders 141, 14
It is movably supported on the guide rail 135 via the guide rail 5.

In order to move the sliders 141 and 145 and the ball screw 137 along the guide rail 135, sprockets 147 and 149 (see FIG. 8) are rotatable at the front and rear ends of the guide beam 125, respectively. Attached to both sprockets 147, 1
A part of the endless chain 151 hung around 49 and a part of the slider 145 are properly connected. Further, one sprocket 147 is interlocked with a servo motor 153 (see FIG. 7) mounted on the guide beam 125.

Therefore, by properly rotating the servo motor 153 forward and backward, the ball screw 137 and the like are guided by the guide rail 135 to reciprocate.

In order to rotate the ball screw 137,
A support bracket 155 is integrally attached to the bearing block 139 that supports the front end portion of the ball screw 137, and the servo motor 15 is attached to the support bracket 155.
A motor bracket 159 that supports 7 is integrally attached. The timing belt 16 is attached to the drive pulley 161 attached to the output shaft of the servomotor 157 and the driven pulley 163 attached to the front end portion of the bulge 137.
5 is running around.

Therefore, the ball screw 137 can be rotated forward and backward by the servo motor 157.

Further, a guide block 167 is integrally attached to the bearing block 139 on the front side, and the vertical movement cylinder 1 attached to the lower part of the guide block 167.
A connecting member 171 is integrally attached to the lower end of the piston rod 169R which is vertically movable in 69. The connecting member 171 includes a pair of facing lift plates 173.
A and 173B are integrally connected.

More specifically, the pair of lifting plates 1
73A and 173B are arranged on both sides of the guide block 167, and vertical guide members 173G integrally provided on the inner side surfaces of the elevating plates 173A and 173B are provided with guide grooves (illustrated in the figure) provided on both sides of the guide block 167. (Omitted) is vertically supported by a guide.

With the above structure, the pair of lifting plates 17
3A and 173B are vertically moved by the operation of the vertically moving cylinder 169.

The pair of lifting plates 173A, 17A
As shown in FIGS. 9 and 11, a guide member 175 parallel to the ball screw 137 is horizontally attached to the inner surface of 3B, and a slide member 177 having a channel-shaped cross section is attached to the guide member 175. Slide block 1
It is movably supported via 79.

In order to construct the front side work clamp 131 for holding the front end portion of the plate material W, an L-shaped clamp jaw 181 is integrally attached to the slide member 177 and a clamp cylinder 183 is attached. is there. The jaw 185U facing the lower jaw 185L of the clamp jaw 181 is integrally attached to the lower end of the vertically movable piston rod 183R of the clamp cylinder 183.

In order to move the work clamp 131 on the front side back and forth along the guide member 175, a connecting bracket 187 having both sides connected to the pair of elevating plates 173A and 173B is provided. The front end portion of the pis rod 189R in the horizontally moving cylinder 189 has the clamp jaw 1
81 is appropriately connected.

Therefore, the cylinder 189 for forward and backward movements is used.
The work clamp 131 is moved back and forth along the guide member 175 by operating.

With the above structure, when the work clamp 131 is made to correspond to the front end of the plate W and the vertical movement cylinder 169 is operated to lower the elevating plates 173A and 173B, the clamp jaws 181 are moved to the roller conveyors 81A and 81B. The roller conveyor 81 is lowered between the belt conveyors 89A and 89B provided.
The height corresponds to the plate material W supported by A and 81B.

Therefore, in the state where the upper jaw 185U is lifted to open the space between the upper jaw 185U and the jaw 185L described below, the cylinder 189 for forward and backward movement is actuated to move the work clamp 131 in the direction of the plate material W, and
The front end of the upper jaw 185U and the lower jaw 1
It will enter between 85L. Therefore, the front end of the plate material W can be held by the upper jaw 185U and the lower jaw 185L, and the vertical movement cylinder 169 can be held.
The front side of the plate material W can be lifted by operating.

The work clamp 133 on the rear side, which holds the rear end of the plate W, is constructed as shown in FIGS.

That is, the rear work clamp 133
Is the work clamp 13 on the front side corresponding to the dimension of the plate material W.
It is configured to be able to approach and separate from 1.

More specifically, as shown in FIG. 10, the guide rail 13 provided below the guide beam 125 is provided.
5, a slider 191 movably supported on the ball nut 19 has a ball nut 19 movably screwed onto the ball screw 137.
A guide block 195 supporting 3 is integrally attached. The work clamp 133 is supported by the guide block 195 so as to be vertically movable.

The work clamp 133 on the rear side has a vertical guide member 197G on the guide block 195.
A pair of lifting plates 1 movably supported vertically
97A and 197B. That is, the elevating plates 197A and 197B are the guide blocks 19
5 is moved up and down through a connecting member 201 connected to a piston rod 199R of a vertical movement cylinder 199 attached to the vertical movement cylinder 199.
A clamp jaw 205 is attached to the connecting bracket 203 attached to 7B. Then, the lifting plate 19
7A and 197B, the upper jaw 209U is attached to the lower end portion of the piston rod 207R of the clamp cylinder 207.
Is attached, and the lower jaw 209L is attached to the clamp jaw 205.

With the above structure, the rear side work clamp 1
Reference numeral 33 is a member that can be adjusted in position in a direction in which it approaches and separates from the work clamp 131 on the front side by appropriately rotating the ball screw 137 by the servo motor 157, and corresponds to the size of the plate material W. The distance between the front and rear work clamps 131, 133 can be adjusted.

Further, the work clamp 133 on the rear side is operated by the clamp cylinder 207 so that the upper jaw 209 is moved.
The rear side of the plate can be held by U and the lower jaw 209L. In addition, the operation of the vertical movement cylinder 199 causes the plate material W
It is possible to lift the rear side of.

As already understood, the plate material transfer device 12
3 is a bending device 7 in which both sides of the front and rear portions of the plate material W positioned at the reference position on the table device 27 are fixed and held by front and rear work clamps 131 and 133.
Can be transported to. That is, the table device 27
It can be conveyed without causing a positional deviation with respect to the reference position.

As described above, when the conveying device 123 conveys from the table device 27 to the folding device 7, the roller conveyor 81 in the table device 27.
It is desirable that the plate material W is conveyed by synchronously driving the A and 81B and the belt conveyors 89A and 89B.

By the way, the folding apparatus 7 is, as described above, a pair of first and second folding machines 7A and 7B (see FIG. 7) arranged so as to face each other. Between the second bending machines 7A and 7B, the plate material transfer device 1
A conveyor device 211 for supporting and transferring the plate material W transferred by 23 is arranged.

More specifically, as shown in FIGS. 14 and 15, the conveyor device 211 has a horizontal beam member 215 supported at both ends by columns 213, and both end portions of the beam member 215 are supported. Is provided with a guide rail 217 in a direction orthogonal to the beam member 215. The guide rails 217 movably support slide brackets 221 at both ends of the plurality of belt conveyors 219A and 219B.

In order to adjust the distance between the belt conveyors 219A and 219B corresponding to the distance between the pair of bending machines 7A and 7B in the folding device 7, one end is pivotally connected to each slide bracket 221. The other end of the link 223 is pivotally connected to a slide block 225 movably supported in the longitudinal direction on the beam member 215. The slide block 225 includes an actuator 2 such as a fluid pressure cylinder.
27 are connected.

Therefore, by moving the slide block 225 by the actuator 227,
Each belt conveyor 219A, 21 via the link 223
9B are moved toward and away from each other, and are capable of adjusting the distance between the pair of bending machines 7A and 7B in the bending apparatus 7.

As described above, when adjusting the distance between the pair of bending machines 7A and 7B in the bending machine 7, in order to fix the plate material W on the conveyor machine 211 in an immovable state, the conveyor machine 211 has A plate material fixing device 229 is provided.

More specifically, an elevating beam 233 supported by an elevating guide 231 so as to be vertically movable is provided above the beam member 215, and the elevating beam 233 is provided.
A vacuum device or an electromagnet 235 protruding from and retracting to the belt conveyors 219A and 219B is attached to the upper surface of the.

Therefore, the ascending / descending beam 23 is mounted on the ascending / descending cylinder 237 mounted on the upper surface of the beam member 215.
3 is raised, and belt conveyors 219A and 219B
By firmly magnetizing the upper plate material W with the electromagnet 235, the plate material W is fixed in a stationary state. Further, the electromagnet 235 is demagnetized, and the lifting beam 233 is
The belt conveyor 219 by lowering
The plate material W can be conveyed by A and 219B.

As a structure for adjusting the interval between the plurality of belt conveyors 219A and 219B in the conveyor device 211, for example, a structure as shown in FIG. 16 can be adopted. That is, in the configuration of FIG. 16, the support brackets 241A to 241D that support the plurality of belt conveyors 239A to 239D are movably supported on the guide rail 243. And each said support bracket 241A-2
A pin 247 of each connecting portion of a cross link mechanism 245 such as a pantograph is slidably engaged with each vertical slit 241S provided in 41D, and a connecting pin 247P at one end of the cross link mechanism 245 is bent. It engages with the vertical slit 7S provided on the machine 7A. Further, the pin 249 at the center of the cross link mechanism 245 is attached to the fixing member 251.

In the above structure, the intervals between the belt conveyors 239A to 239D are adjusted in association with the movement of the folding machine 7A.

That is, various structures can be adopted as the structure for adjusting the interval between the belt conveyors.

[0096]

As will be understood from the above description of the embodiments, in short, the present invention is connected to the first transport table connected to the first processing machine for processing a workpiece and the second processing machine. A guide rail is provided over the above-described second transport table, and a plurality of work storage parts that store a plurality of works to be processed are provided below the guide rail. A first work transfer device that can transfer to a first transfer table and a second work transfer device that can transfer to a second transfer table are individually movably mounted on the guide rails.

With the above structure, according to the present invention, each work transfer device movably mounted on the guide rail can be moved to a position corresponding to a plurality of work storage portions arranged below the guide rail. .. Then, the works in the respective work storage units can be carried to the respective carrying tables located below the guide rails by the respective work carrying devices.

That is, it is possible to commonly use a plurality of work storage parts for each work transfer device, and it is possible to save space in the overall structure.

[Brief description of drawings]

FIG. 1 is an explanatory view schematically showing an entire processing line.

FIG. 2 is an enlarged cross-sectional view taken along the line II-II in FIG.

FIG. 3 is a plan view of FIG.

FIG. 4 is an enlarged detailed plan view of an arrow IV portion in FIG.

FIG. 5 is a front view of FIG. 4 as viewed from below.

FIG. 6 is a left side view of FIG.

FIG. 7 is a schematic plan view of a main part.

FIG. 8 is a front explanatory view of FIG. 7 as seen from below.

9 is an enlarged detailed front sectional view of a portion indicated by an arrow IX in FIG.

10 is an enlarged detailed front sectional view of a portion indicated by an arrow X in FIG.

11 is a left side view of FIG. 9 viewed from the left side.

FIG. 12 is a right side view of FIG. 9 viewed from the right, showing a partial cross section.

13 is a right side view of FIG. 10 viewed from the right side.

FIG. 14 is a front view showing a belt conveyor device.

FIG. 15 is a plan view of FIG.

FIG. 16 is an explanatory view showing another embodiment of the belt conveyor device.

[Explanation of symbols]

 7, 9 1st, 2nd processing machine 31, 33 1st, 2nd conveyance table 37 Guide rail 35A, 35B Work storage part 41A, 41B 1st, 2nd work conveyance apparatus

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Toshio Ikeda 795 Tode Kasuga, Takaoka City, Toyama Prefecture Kyowa Machine Co., Ltd.

Claims (1)

[Claims] 1. A guide rail is provided above a first transfer table connected to a first processing machine for processing a work and a second transfer table connected to a second processing machine.
A plurality of work storage parts that store a plurality of works to be processed are provided at a position below the guide rail, and the first work transfer device and the first work transfer device that can transfer the works of the respective work storage parts to the first transfer table. A second work transfer device capable of being transferred to the second transfer table and a second work transfer device that are individually movably mounted on the guide rails.