JPH0866793A - Device for cutting and conveying metal plate and method therefor - Google Patents

Abstract

PURPOSE: To improve the efficiency of cutting and conveying workings and to eliminate the stock in respect to a cutting and conveying device. CONSTITUTION: A pallet is supported at a cutting working position A3, and this device is provided with a pallet supporting device 5 having a pallet conveying mechanism, a cutter 1 to cut a metal plate on the pallet of the cutting position A3, a supplying side conveying device 2 to convey the pallet from a loading position A1 to mount the metal plate on the pallet to the pallet supporting device 5, a discharging side conveying device 3 to convey the pallet together with an article from the pallet supporting device 5 to an article taking out position A7, and a returning conveying device 4 to convey the pallet from the article taking out position A7 to the loading device A1. By circulating the pallet from the loading position, through the cutting working position and the article taking out position to the loading position, the metal plate and the article after cutting or the waste are made to be conveyed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plate material cutting / conveying device having a cutting machine for cutting a product having a desired pattern from a plate material, such as a gas fusing machine, a plasma cutting machine, and a laser cutting machine. Regarding

[0002]

2. Description of the Related Art In a conventional cutting machine, a grid-shaped work stand is installed in the cutting machine, and only a plate material is supplied from the outside of the machine into the cutting machine, and is placed on a stationary grid-like work stand. The plate material is placed directly on it. In this state, cutting work such as gas fusing is carried out, and after the cutting work, only the product is taken out from the frame or the product and the waste material are taken out together. As a prior art of this type of cutting machine, there is, for example, Japanese Patent Laid-Open No. 5-50271.

Such a cutting machine may cut out only one product from one plate material, but in general, many products are cut out from one plate material as shown in FIG. 11, and after cutting out. To minimize the amount of waste material
The arrangement of these products on one plate, that is, the pattern for patterning is devised.

In order to improve the production efficiency of such cutting work, a plurality of cutting machines are installed in parallel so that each cutting machine can simultaneously perform the cutting work of the same shape, or a plurality of torch units, etc. A composite type cutting machine with a cutting mechanism is installed.

[0005]

A structure in which a stationary work platform is provided in the cutting machine, a plate material for the work is supplied to the platform from outside the machine, and after cutting, the product is taken out from the work platform in the cutting machine. In other words, in the method of moving only the plate material alone, it takes time and labor to supply and remove the plate material,
Continuous operation is impossible and the operating efficiency of the cutting machine does not improve.

Further, even if a plurality of cutting machines are provided to simultaneously cut a plurality of plate materials, or a plurality of plate materials are simultaneously cut using a composite cutting machine, the same pattern forming pattern is produced. Therefore, in order to effectively use all the cutting machines or torch units, it is unavoidable to make more products than necessary, which leads to an increase in inventory and is uneconomical. In particular, in the case of small-quantity production, the ratio of those in stock among the number of units produced increases.

For example, when the demand for one type of vehicle such as a construction vehicle is three, in a cutting and conveying device having five cutting machines, two cutting machines are produced, and those cutting machines are produced. Will be in stock.

In particular, in the case of products for which a large variety of products are required to be produced in small quantities, such as construction vehicles, there is a tendency for the stock of each model to become large as described above, resulting in a very large total stock. is there. Moreover, in construction vehicles and the like, the number of parts for one model is very large, and the inventory increases.

[0009]

According to the first aspect of the present invention, a pallet supporting device for supporting a pallet at a cutting work position and having a pallet transfer mechanism, and a plate material on the pallet at the cutting work position are formed into a predetermined shape. A cutting machine for cutting, a feeding side conveying device for conveying the pallet from the loading position where the plate material is placed on the pallet to the pallet supporting device, a discharging side conveying device for conveying the pallet together with the product from the pallet supporting device to the product unloading position, and the product Cutting of plate material, characterized in that it is provided with a returning transport device for transporting the pallet from the take-out position to the loading device, and the pallet is circulated from the loading position to the loading position through the cutting work position and the product take-out position. It is a carrier device.

According to a second aspect of the present invention, in the plate material cutting and conveying apparatus according to the first aspect, a plurality of cutting machines are arranged in parallel, and each cutting machine is capable of cutting a different shape.
The feeding-side transfer device communicates with one loading position and the pallet support device of each cutting machine, and the discharge-side transfer device communicates with the pallet support device of each cutting machine and one product take-out position. It is a plate material cutting and conveying device characterized in that

According to a third aspect of the present invention, in the sheet material cutting and conveying device according to the first or second aspect, the next pallet is put on standby between the pallet supporting device and the supply side conveying device of each cutting machine to perform a cutting operation. A plate material cutting / conveying device is characterized in that a standby device for transferring to a position is provided.

According to a fourth aspect of the present invention, in the plate material cutting and conveying apparatus according to any one of the first, second and third aspects, a plate material supply section for supplying a standard size plate material and a standard size plate material are cut into sizes. A residual material storage and supply section for storing and supplying the residual material, and a plate material transfer device for connecting the both supply sections and selecting a material of either supply section to transfer the plate material to the loading position. It is a plate material cutting and conveying device characterized in that.

According to a fifth aspect of the present invention, the plate material is placed on the pallet at the loading position, the pallet is conveyed by the supply side conveying device, and is supplied to the pallet supporting device of the cutting machine, and the cutting work of the pallet supporting device is performed. At the position, it is cut into a predetermined shape by a cutting mechanism such as an arc of a cutting machine, the cut product and the waste material are taken out together with the pallet and conveyed to the product taking-out position by the discharging side carrying device, and the product is taken out at the position. After that, the pallet is returned to the loading position of the supply side transfer device again, and the plate material is cut and transferred.

[0014]

The required plate material or residual material from the residual material storage / supply section or the plate material supply section is sequentially transferred to the plate material transfer apparatus according to a predetermined production number, and the plate material transfer apparatus loads the pallet at the loading position of the supply side transfer apparatus. Reprinted to.

The sheet material is carried together with the pallet by the supply side carrier device to the vacant standby position of the cutting device and transferred to the standby position.

The pallet is transferred from the standby position to the cutting work position of the pallet support device, and the plate material at the cutting work position is cut into a predetermined pattern by a cutting machine.

After cutting, the product and the waste material are transferred together with the pallet to the discharge side transporting device, transported to the product unloading position, and the product is taken out at the position.

After the product is taken out, the pallet from which all the loads have been removed is returned to the pallet at the loading position, and the plate material is loaded again and conveyed.

When the cutting work of the parts corresponding to the planned production quantity of one model approaches the end, subsequently, the plate material for the next model starts to be supplied to the empty standby position.

[0020]

According to the first and fifth aspects of the present invention, (1) Circulation movement of the pallet is moved from the loading position to the product unloading position through the cutting operation position of the cutting machine and then back to the loading position. As a formula, since the plate material is conveyed together with the pallet and the product after cutting is conveyed together with the pallet, it is possible to supply the plate material into the cutting machine and take out the product from the cutting machine quickly and accurately. Therefore, the efficiency of cutting and conveying work is improved. Especially in the case of gas fusing, the product immediately after fusing is heated to a high temperature, and fusing debris accumulates on the pallet at the time of fusing. Hot products including pallets can be easily discharged from the cutting machine (fusing machine). Furthermore, the inside of the cutting machine can be received in a clear state even for the plate material supplied later.

(2) Since the product after cutting is taken out from the cutting machine together with the pallet, the product can be taken out from the pallet at a fixed position. In this respect as well, work efficiency can be improved. Especially, it is convenient in continuous operation.

(3) Since the pallet moving method is adopted, the feeding surface of the feeding side feeding device, the discharging side feeding device, and the feeding mechanism of the pallet supporting device in the cutting machine can be set to a low level, thereby carrying out the feeding work. Is stable.

According to the invention described in claim 2, the following effects are also obtained. (4) A plurality of cutting machines are arranged in parallel, each cutting machine can cut an independent patterning pattern, and each supply-side transfer device has one loading position and a transfer mechanism for each cutting machine. Since the discharge side transport device is configured so as to reach the transfer mechanism of each cutting machine and one product take-out position, when producing multiple parts of one model, It can be produced minute by minute. Therefore, compared to the conventional case where all cutting machines simultaneously cut the same parts to improve efficiency, it is possible to produce only the required number of parts, eliminate unnecessary parts inventory, and manage inventory. It will be easier.

(5) Among the plurality of cutting machines, the plate material is sequentially supplied to the vacant places to perform the cutting work with different patterning patterns, so that all the cutting machines can be continuously operated without interrupting any of them. The work can be performed, and the work efficiency can be improved also from this point. Especially, in the case of high-mix low-volume production, the effect is remarkable.

According to the invention described in claim 3, the following effects are also obtained. (6) A standby device for waiting the next pallet is provided on the pallet entrance side of the transfer mechanism of each cutting machine so that the pallet stands by. Therefore, for example, when a small controller is provided for each cutting machine. The data of the cutting work of the next plate material can be input to the controller during the standby, and the size of the control device can be reduced.

According to the invention described in claim 4, there is also the following effect. It is equipped with a plate material supply unit that supplies unused plate materials of a certain standard size, and a residual material storage supply unit that stores and supplies the residual material that is obtained by cutting the standard plate material, and either of them can be connected to both supply units. Since it is equipped with a plate material conveying device that selects the material of the supply section of the above and conveys the necessary plate material to the loading position, it is possible to effectively use the residual material, save parts cost and organize the material inventory. it can.

[0027]

1 to 10 show an embodiment of a pallet circulation type cutting and conveying apparatus to which the inventions described in claims 1 to 4 of the present application are applied. In FIG. 1 showing a plan view, a cutting and conveying device includes a plurality of cutting machines 1-1, ..., 1-5, and the cutting machines 1-1,
.., 1-5, a discharge-side transport device 3 disposed on the front side, and a return-use transport device 4 disposed on the right side, and each cutting machine 1 Each of them has a pallet support device 5 with a pallet transfer mechanism and a standby device 6 with a transfer mechanism. The pallet P is distributed from the supply side transfer device 2 to each standby device 6 and supplied to the pallet support device 5 with a transfer mechanism, and after the cutting operation, the discharge side transfer device 3 passes through the return transfer device 4 and the supply side transfer device 4. The device 2 is returned to the loading position A1.

Five cutting machines are provided as cutting machines, which are arranged in parallel. Temporarily, from the left side, the first, second, third, fourth and fifth cutting machines 1-
Although referred to as 1, 1-2, 1-3, 1-4, 1-5, when referring to the entire cutting machine, it is simply referred to as the cutting machine 1. Each cutting machine 1 is equipped with a gate-shaped traveling machine body 10 on a pair of left and right rails 8 so as to be movable in the rail direction (front-back direction). A slider 11 is provided. Each slider 11 is provided with several types of torches 12 having different crater diameters, and the torch 12 having a suitable crater diameter can be selected according to the detection of the plate thickness.

The torches 12 may have the same caliber, but the cutting machines 1 may all be the same. For example, the torches 12 of the first and second cutting machines 1-1 and 1-2 may be combined. As for the 3rd and 4th, we installed several types of fire caliber within the range corresponding to the relatively thin plate thickness.
And each torch 1 of the fifth cutting machine 1-3, 1-4, 1-5
It is also possible to provide several types of crater diameters within the range corresponding to the thick plate thickness.

The pallet support device 5 with a transfer mechanism is arranged between the rails 8 of the cutting machine 1, and the pallet support device 5
Standby devices 6 with a pallet transfer mechanism are respectively arranged on the rear side of the pallet transfer mechanism so as to be continuous therewith. As the pallet transfer mechanism of the pallet support device 5, as shown in FIG.
A conveyor having a pair of left and right chains 14 and a geared motor 15 with a brake for driving the conveyor are provided. Guides 16 for restricting the horizontal position of the pallet P are provided on both left and right sides of the pallet support device 5,
Further, a stopper 17 for locking the pallet P at the cutting work position A4 is arranged at the front end portion so as to be movable up and down.

The pallet standby device 6 of FIG. 1 has the same structure as the pallet support device 5 of FIG.

1 is an electric carriage type, and a pair of rails 20 extending in the left-right direction are laid along the rear end of the standby device 6, and an electric carriage 21 is mounted on the rails 20. Is mounted so that it can reciprocate. Electric trolley 21
Is equipped with an electric motor for traveling (not shown), and is equipped with a chain conveyor 23 for transferring pallets, which is driven in the forward direction. The electric carriage 21 is controlled to stop at the loading position A1 at the right end position of the rail and the transfer positions A2 corresponding to the standby devices 6 of the cutting machines 1, respectively.

Loading position A1 of the feeding side transport device 2
On the right side of, there is disposed a pair of left and right loading drive rollers 24 with a clutch mechanism for driving the front in the feeding direction. A front-rear-movable stopper 25 is provided at the front part of the drive roller 24, so that a cutting dimension by a cutter 62 described later is set.

The discharge side transfer device 3 is a pallet support device 5
The main chain conveyor 26 is disposed so as to extend in the left-right direction along the front end of the main chain conveyor 26 and is driven with the right direction as the feed direction. Main chain conveyor 26
Transfer position A5 corresponding to each pallet support device 5
And the transfer position A6 at the right end are provided with transferable chain conveyors 27 and 28 that can be moved up and down. The transfer chain conveyors 27 and 28 are moved up and down by a hydraulic cylinder or the like between an ascending position where the upper end conveying surface is higher than the upper end conveying surface of the main chain conveyor 26 and a lower position where the upper end conveying surface is lower. It is like this.

The transfer chain conveyor 27 corresponding to each pallet support device 5 is constructed so as to be driven with the front as the feed direction, and when in the raised position, the pallet support device 5 is moved.
The pallet P is taken over from the
Are transferred onto the main chain conveyor 26. On the other hand, the transfer chain conveyor 28 at the right end is driven in the backward direction as the feed direction, and the pallet P conveyed on the main chain conveyor 26 to the position A6 is taken up by the ascending operation and returned to the rear side. It is designed to be delivered to the carrier device 4.

The return transport device 4 is provided with two front and rear chain conveyors 30 and 31, the position of the front chain conveyor 30 being the product take-out position A7, and the position of the rear chain conveyor 31 being the scrap take-out position A8. Become.
The transfer chain conveyor 23 of the electric carriage 21 at the loading position A1 is adjacent to the rear end of the rear chain conveyor 31. Both the front and rear chain conveyors 31 and 32 are designed to rotate with the rear as the feed direction.

As a device for taking out the product and the waste material from the product taking-out position A7 and the scrap taking-out position A8, the magnet suspension cranes 37, 3 are provided at the corresponding positions.
8 are provided. Explaining the support structure of the cranes 37, 38, a pair of left and right crane mounts 33 are laid from the product take-out position A7 to the scrap take-out position A8 to the loading position A1.
Is arranged so as to be separated from the return transport device 4 by a certain distance, and thus a working space for loading products or the like on a luggage car or a product transport conveyor is secured between the right pedestal 33 and the return transport device 4. are doing.

On the pedestal 33, crane support arms 35 and 36 which can travel in the front-rear direction are respectively supported at positions corresponding to the product take-out position A7 and the scrap take-out position A8, and a magnetic suspension is provided on each of the support arms 35 and 36. The following suspension cranes 37 and 38 are suspended so as to be movable in the left and right directions.

At a position corresponding to the loading position A1, a pair of front and rear rails 4 for the plate material transfer crane 41 is provided.
0 is erected on the rail 40, and a magnet suspension type transfer crane 41 is hung from the rail 40 so as to be movable in the left and right directions as shown in FIG.

As shown in FIG. 4, the crane 41 includes a traveling device 44 mounted on a rail 40 and a drive motor 42 for driving the traveling device 44. The traveling device 44 has a lateral rail 47 and a support. The machine body 49 is supported via the wheels 48, whereby the machine body 49 can be moved in the front-rear direction and the left-right direction. A winch 45 and a drive motor 46 for driving the winch 45 are provided in the machine body 49, and a plurality of magnets 43 are suspended in the winch 45 so as to be vertically movable.

An electric carriage 21 of the supply side transfer device 2 of FIG.
Sensors 55 and 56 for detecting that the pallet P has been transferred to the corresponding position and that the pallet P has been taken out of the corresponding position are provided on the standby device 6, the pallet support device 5, and the return transport device 4. , 57, 58, 59 are provided.

On the rear side of the loading drive roller 24, a plate material transporting drive roller 60 is arranged as a plate material transporting device, and the drive roller 60 is adapted to rotate with the front as the feeding direction. Between the drive roller 60 and the loading drive roller 24, a size cutting cutter 62 for cutting the standard plate material into a predetermined size is provided. That is, the loading drive roller 24
The front end of the standard plate material is positioned by the movable stopper 25 and is cut into a predetermined size by the cutter 62. For example, a standard plate material having a size of 1500 × 6000 mm is cut into a required size of 1500 × 3000 mm.

Next, the plate material conveying drive roller 60 of FIG.
An apparatus for supplying standard plate materials or cut residual materials in a predetermined order will be described.

In FIG. 5, a return drive roller 63 whose rear is the feeding direction is arranged on the left side of the drive roller 60, and both drive rollers 60, 63 are provided with a rear drive roller 63 as shown in FIG.
A chain conveyor type conversion machine 65 as shown in FIG. Each chain portion of the chain conveyor type conversion machine 65 is arranged between the rolls of the drive roller 60, and is driven so that it can be switched forward and backward so that the feed direction can be either the left or right direction. The converter 65 is configured to be able to move up and down, and as shown by the solid line in FIG.
0, 63 ascending position that is higher than the upper transfer surface,
Although not shown, a hydraulic cylinder or the like moves up and down between the lower position and the lower position.

In FIG. 5, front and rear parts of both drive rollers 60 and 63 are also provided with chain conveyor type converters 66 that can move up and down similarly to the rear part, and the transfer direction is leftward. Drive roller 60 for transporting the right plate material
The residual material after the cutting of the cutter can be transferred to the return drive roller 63 on the left side.

On the right side of the rear portion of the plate material conveying drive roller 60, a plate material supply section 70 for supplying an unused standard plate material having a standard size is arranged, and the return drive roller 63 is provided.
On the left side of the rear part, a residual material storage / supply unit 71 including an electric carriage type residual material transportation device 74, a residual material storage rack 75, etc. is arranged, and an intermediate transfer is performed between the residual material transportation device 74 and the drive roller 63. A mounting chain conveyor 73 is interposed.

The plate material supplying section 70 is composed of two front and rear drive rollers 76 extending in the left-right direction and is configured to rotate with the left direction as the feeding direction.

The residual material conveying device 74 has a length 1 extending in the left-right direction.
A pair of rails 80 and an electric carriage 81 supported on the rails 80 are provided, and a vertically-installed residual material storage rack 75 is arranged along the rails 80. As shown in FIG. 8, the electric carriage 81 includes an electric motor 82 and a rotary work holder 84 having a “D” shape. The work holder 84 is rotatable between a fall position shown by a solid line and an upright position shown by a virtual line, and a guide roller 85 whose forward and backward feed directions are provided on the inner surface. Also,
A hydraulic clamp 86 movable in the front-rear direction is provided, and the residual material W can be grasped by the clamp 86 and moved in the front-rear direction.

Of the pair of arm portions of the holder 84, the arm portion which comes to the lower side in the lying position is, for example, a comb shape so that it can be inserted between the chains of the chain conveyor 73 for relay transfer. Are arranged, and with respect to the upper transfer surface of the intermediate transfer chain conveyor 73,
The height of the lower guide roller 85 is configured to be slightly lower. That is, by rotating the work holder 84 to the laid-down position, it is possible to transfer the remaining material supported by the work holder 84 to the supported state by the relay chain conveyor 73.

In FIG. 9, the remaining material storage rack 75 is divided into a large number of vertically long storage chambers, and each storage chamber is provided with a guide roller 87 at the lower end and both left and right sides, and one storage chamber is provided. One residual material is stored and stored, and the thickness and size of the residual material are input to the control device and recorded.

Regarding the cutting and conveying method, first, the outline of the production system will be described. For example, when cutting out a body member for one model of a construction vehicle, the number of vehicles produced is 5,
The material molding pattern for the table is H1, H as shown in FIG.
2, ... Hn, the parts H1 are not cut by the five cutting machines 1 at the same time, but the cutting machines 1 cut different parts H1, H2 ,.
Production is carried out so that the parts are completed one by one.

As the work, an unused iron plate having a standard size required on the day of work, for example, 1500 mm × 3000 mm or 1500 mm × 6000, which is commercially available, is used.
mm steel plate with various required plate thickness, eg 9 mm, 1
2mm, 16mm, ... 50mm, 70mm ... etc.
Precisely arranged on the drive roller 72 of the plate material supply unit 70 of FIG. 5 so as to correspond to the above-mentioned work order. These sequences, the thickness of each plate and the patterning have already been entered in the central control unit.

On the other hand, the size and thickness of the remaining material stored in the remaining material storage rack 75 is recorded in advance for each storage chamber, and any of the remaining materials of the storage rack 75 can be used for production of any part. If there is a usable size and thickness, the remaining material in the storage rack 75 is preferentially used instead of arranging a new plate material in the material supply unit 70. That is, the desired residual materials in the storage rack 75 are input to the control device so that they can be taken out in the desired order.

Reference plate materials W1 and W2 shown by phantom lines in FIG. 5 are those of 1500 × 6000 mm and 1500 × 3000 mm.

The plate material W transferred from the left end portion of the plate material supply unit 70 to the plate material conveying drive roller 60 through the elevating converter 65 is transferred to the front and is sent to the loading drive roller 24, The stopper 25 stops at a predetermined position. The stopper 25 operates so as to correspond to the required size of each plate material that is input in advance. Therefore, in the case of a plate material that needs to be dimensionally cut, it is cut into a predetermined size by the cutter 62. The surplus remaining material is transferred to the return drive roller 63 by the front converter 66, and transferred to the intermediate transfer chain conveyor 73 via the rear converter 65 at the rear end of the return drive roller. It From the intermediate transfer and transfer chain conveyor 73, the electric carriage 81 is transferred into the work holder 84 in the laid state, and after being placed in the upright posture, it is moved to the front of the empty storage chamber of the residual material storage rack 75, and then in the vertical posture. It is inserted into the storage rack 75 as it is.

In FIG. 1, the plate material after dimension cutting on the loading drive roller 24 is hoisted by a magnet hoisting crane 41, transferred to the left, and then the electric carriage 21 stopped at the loading position A1. It is positioned and placed on the pallet P. Electric cart 2 for loading plates
When it is detected by the sensor 55 above 1, the number of the pallet P on which the plate material is stacked is determined and input to the control device.

When the loading of the plate material is detected, the electric cart 21 is instructed by the controller to wait for the empty position A3 of the cutting machine 1.
It moves to the position A2 on the rear side and stops. At the beginning of the line work, the pallet support devices 5 and the standby devices 6 of all the cutting machines 1 are empty, so that, for example, the first cutting machine 1
It is possible to sequentially supply pallets from -1 to the fifth cutting machine 1-5 and their corresponding standby devices 6.
However, after the work is started, after the pallets have been supplied to the cutting work positions A4 and the standby positions A3, the location where the empty space is detected by the sensor 56 of the standby device 6 is selected to correspond to the empty standby position A3. An instruction is sent to the truck 21 to move to position A2. That is, it is distributed and supplied so that the standby position A3 is always full.

When the carriage 21 moves to a predetermined position A2 and then stops, the transfer chain conveyor 2 on the electric carriage 21
3 and the chain conveyor of the standby device 6 operate to transfer the pallet P in the plate material stacked state to the standby position A3. After the transfer, the electric carriage 21 returns to the loading position A1 again.

At the standby position A3, the number of pallets loaded on what pallet is transferred to the control device by the detection of the sensor 56. Existing data, that is, the selection of the torch and the patterning corresponding to the plate thickness are input to the controller of the corresponding cutting machine during the waiting time.

When the cutting work of the preceding work is finished and the cutting work position A4 is vacant, the pallet P at the corresponding waiting position A3 is transferred to the cutting work position A4, and the stopper 17 and the guide 17 in the raised state shown in FIG. It is locked by 16 at a substantially predetermined cutting work position A4.

The torch 1 having the caliber selected according to the above-mentioned data according to the instruction of the controller of the corresponding cutting machine 1.
2 (FIG. 1) moves in accordance with the instructed molding pattern to cut (fuse) the plate material into a predetermined molding pattern.

When the cutting operation is completed, the stopper 17 is released, and the chain conveyor 14 of the pallet supporting device 5 and the corresponding transfer chain conveyor 27 of the discharge side conveying device 3 of FIG. The waste material is transferred together with the pallet P to the discharge side transfer device 3, and is transferred to the transfer position A6 at the right end by the main chain conveyor 26. Then, the pallet P is transferred from the position A6 to the product unloading position A7.

When the sensor 58 detects that the product has been transferred to the product take-out position A7, the display device or the like displays which part of which model the product is. At the product take-out position A7, the worker uses the magnet suspension type suspension crane 37 to take out the product and transfer it to a device such as a wheelbarrow or a conveyor.

After the product is taken out, the front chain conveyor 30 moves from the scrap processing position A8 to the rear chain conveyor 31.
The pallet P is transferred to and the waste material (scrap) is taken out by the magnetic suspension type suspension crane 38.

The pallet from which all the loads have been removed at the scrap unloading position A8 is transferred onto the electric carriage 21 at the loading position A1 and waits for the next plate material to be loaded at the position A1. In this way, the pallet P is returned to the loading position A1 again via the loading position A1, the standby position 3, the cutting work position 4, the product unloading position 7 and the scrap discharging position 8.

In the plate material supply to the plate material conveying drive roller 60 of FIG. 5, when there is a suitable residual material in the storage rack 75, the clamp 86 of the electric carriage 81 of the residual material conveying device 74 (FIG. 8, According to FIG. 9), the remaining material is pulled out from the corresponding storage chamber, conveyed to the right end of the rail 80, and transferred to the intermediate transfer chain conveyor 73.
From the intermediate transfer chain conveyor 73, the return drive roller 63 is lifted by the rear elevating converter 65 in a raised state.
After passing over the sheet, the sheet is transferred to the plate material conveying drive roller 60. Then, the remaining material is sent forward on the drive roller 60.

When the cutting of the parts corresponding to the planned production quantity of one model approaches the end, subsequently, the plate material for molding the parts of the next model starts to be supplied to the vacant standby position A3.

[0068]

[Other Examples]

(1) As a cutting machine, a plasma cutting machine and a laser cutting machine can be provided in addition to the gas fusing machine.

(2) The inventions according to claims 1 and 5 can be applied to a cutting and conveying device having only one cutting machine.

(3) As the pallet P, a lattice pallet as shown in FIG. 10 is suitable for gas fusing, etc.
The present invention is not limited to this, and various structures such as a mesh-like, frame-like, or upwardly projecting protrusion uniformly arranged can be used.

[Brief description of drawings]

FIG. 1 is a plan view of a cutting and conveying device to which the inventions according to claims 1 to 5 of the present application are applied.

FIG. 2 is a front view of FIG.

FIG. 3 is a plan view of a pallet support device with a transfer mechanism.

FIG. 4 is a front view of a magnet suspension type crane.

FIG. 5 is a plan view of a plate material conveying device.

FIG. 6 is an enlarged plan view of a conversion machine portion of the plate material conveying device.

7 is a sectional view taken along line VII-VII of FIG.

FIG. 8 is a front view of an electric carriage of the residual material storage and supply device.

FIG. 9 is a front view of a storage rack of the residual material storage and supply device.

FIG. 10 is a perspective view of a pallet.

FIG. 11 is a plan view showing an example of a patterning pattern of a plate material.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cutting machine 2 Supply side conveyance device 3 Discharge side conveyance device 4 Return conveyance device 5 Pallet support device with pallet transfer mechanism 6 Standby device with pallet transfer mechanism 12 Torch (cutting mechanism) 60 Plate material conveyance drive roller (plate material conveyance device) 70 Plate Material Supply Section 71 Residual Material Storage Supply Section

Continuation of the front page (51) Int.Cl. ⁶ Identification number Reference number in the agency FI Technical indication location B65H 5/04 29/46 (72) Inventor Tamio Nishikawa 1-1 Kawasaki-cho, Akashi-shi, Hyogo Kawasaki Heavy Industries Ltd. Inside the Akashi Factory (72) Inventor Satoshi Sanyanu 1-1 Kawasaki-cho, Akashi-shi, Hyogo Prefecture Kawasaki Heavy Industries Ltd. Akashi Factory (72) Inventor Taichi Tanaka 2680 Oka, Inami-cho, Kako-gun, Hyogo Kawasaki Heavy Industries Co., Ltd. Banshu Factory (72) One inventor Motooka 2680 Oka, Inami-machi, Kako-gun, Hyogo Prefecture Kawasaki Heavy Industries Co., Ltd. in Banshu Plant (72) Inventor, Tai Tanaka 2680 Oka, Inami-cho, Kako-gun, Hyogo Prefecture Banshu Plant, Kawasaki Heavy Industries Co., Ltd. 72) Inventor Yoshiki Yamada 2680 Oka, Inami-cho, Kako-gun, Hyogo Prefecture Banshu Plant, Kawasaki Heavy Industries, Ltd. (72) Masaaki Asano 1-1 Kawasaki-cho, Akashi City, Hyogo Prefecture Akashi Plant, Kawasaki Heavy Industries Co., Ltd. (72 ) Inventor Takao Sakamoto 1-1 Kawasaki-cho, Akashi-shi, Hyogo Kawasaki Heavy Industries Ltd. Akashi Hall (72) inventor Kubo, Hyogo Prefecture Noriyuki Kako District Inamichooka 2680 address Kawasaki Heavy Industry Co., Ltd. Banshu in the factory

Claims (5)

[Claims] 1. A pallet supporting device that supports a pallet at a cutting work position and has a pallet transfer mechanism, a cutting machine that cuts a plate material on the pallet at the cutting work position into a predetermined shape, and a loading position that places the plate material on the pallet. From the pallet support device to the pallet support device, the delivery side transport device that transports the pallet together with the product from the pallet support device to the product unloading position, and the return transport that transports the pallet from the product unloading position to the loading device. And a device for circulating a pallet from a loading position to a loading position through a cutting work position and a product unloading position. 2. The plate material cutting and conveying device according to claim 1, wherein a plurality of cutting machines are arranged in parallel, each cutting machine is capable of cutting a different shape, and the supply side conveying device is
A plate material characterized in that the loading position of each location and the pallet support device of each cutting machine are connected to each other, and the discharge-side transport device communicates the pallet support apparatus of each cutting machine and one product unloading position. Cutting and conveying device. 3. The plate material cutting and conveying apparatus according to claim 1, wherein the next pallet is made to stand by between the pallet supporting device of each cutting machine and the supply side conveying device and is transferred to the cutting work position. An apparatus for cutting and conveying a plate material, which is provided with a device. 4. The plate material cutting and conveying apparatus according to claim 1, 2 or 3, wherein a plate material supply unit for supplying a standard size plate material and a residual material obtained by cutting the standard size plate material are stored. A residual material storage and supply unit for supplying, and a plate material conveying device that is connected to both supply units and selects a material from one of the supply units and conveys the plate material to the loading position. Plate material cutting and conveying device. 5. A plate material is placed on a pallet at a loading position, the pallet is conveyed by a supply side conveying device and supplied to a pallet supporting device of a cutting machine, and the pallet supporting device of the cutting machine is operated at a cutting work position of the cutting machine. Cut into a predetermined shape by a cutting mechanism such as arc, take out the cut product and waste material together with the pallet, convey it to the product take-out position by the discharge side conveyance device, take out the product at that position, and then supply the pallet again A method of cutting and transporting a plate material, which comprises returning to a loading position of a side transport device.