JP2660220B2 - Foam resin product cutting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention is directed to producing a foamed resin product such as a foamed styrofoam product by cutting and separating or dividing a pre-produced styrofoam block into a plate-like product. And a foamed resin product cutting device used as other products.

[Conventional technology]

Conventionally, when a styrofoam molded product, for example, a plate-shaped product is manufactured, it is possible to form a styrofoam block into a styrofoam by cutting it into a styrofoam block to a predetermined thickness in order to improve productivity. Is being done. For this work, a cutter is used, which is stretched and set between the electrodes at intervals of a plurality of heat-fusing wires of nichrome wire, and the worker manually determines the wire width and lowers it from the top of the Styrofoam block. And the fusing cut operation was performed.

[Problems to be solved by the invention]

However, in this cutter, when cutting the block with the heat fusing wire, two workers from both sides respectively decide the width of the cutting wire, for example, a large number of up to about 50 by hand, from both sides to stretch the wire. Therefore, there is a problem that the preparation before the molding operation is troublesome, and the selection of the number and the position adjustment are complicated. Further, when the continuous operation is performed by resetting several times a day, severe processing conditions are required, work efficiency is poor, and reliability is not satisfactory.

The present invention is intended to eliminate the above-mentioned drawbacks properly, and can automatically perform the work of selecting the number of cutting wires and adjusting the position thereof, and can easily prepare and adjust the Styrofoam molding work, and can easily perform the adjustment. It is an object of the present invention to provide a foamed resin product cutting apparatus which can greatly reduce the time, improve the work efficiency and save labor, and has high safety.

[Means for solving the problem]

In the present invention, in order to achieve the above object, a plurality of cutters comprising a pair of slide holders for mounting a heating wire capable of fusing the styrofoam block are movably arranged on a support rod, and each of the slide holders A frame having a brake mechanism for fixing to the support rod, an operating mechanism for engaging and disengaging the brake mechanism, and selectively moving on the support rod, and a traveling drive mechanism for causing the operation mechanism to travel on rails; Is mounted on a pole erected on a mounting table of a styrofoam block so as to be movable up and down by a lifting mechanism.

The slide holder is slidably fitted to a frame support rod and an electrode / guide support rod which are provided on both sides of the frame at a distance from each other with a pair of spaces therebetween. It is preferable that the brake lever is provided with a portion and a brake piece that comes into contact with and separates from the electrode / guide support rod, and a return spring and an operating element are provided on the brake piece.

Further, the operating mechanism is provided with a lock piece that can be inserted into and disengaged from an engaging hole provided in the slide holder with a driving unit, and includes a traveling roller and a slide unit that is fitted on a rail. It is preferable that the traveling drive mechanism be provided on a traveling vehicle provided with a driving unit, a rack provided on a frame, and a pinion meshing with the rack.

Further, it is preferable that the elevating mechanism has a frame connected and suspended by a chain mounted on a chain wheel rotated by a driving unit, and a balance weight is provided in the chain.

(Operation)

According to the foamed resin product cutting device of the present invention, in order to cut the styrofoam block to a predetermined thickness and form it into a plate-like body, the styrofoam block is set on the mounting table and the device is operated. That is, first, the traveling drive mechanism and the operating mechanism are respectively operated to make the slide holders stand by on the side where the styrofoam block is not set, and then the slide holders are sequentially arranged at predetermined intervals. Next, the traveling drive mechanism travels and stops above the cutter, and the drive unit lowers the lock piece, which penetrates the engagement hole of the slide holder to operate the brake mechanism, and operates as an electrode and guide. The brake member that has been in contact with the support rod rotates to release the fixing of the slide holder to the electrode / guide support rod.

Next, when the traveling drive mechanism is re-driven and moves to a predetermined position, and stops at this predetermined position, the drive unit raises the lock piece, and the brake member separated from the electrode and guide rod restores the spring. It rotates by action and presses against the electrode / guide support rod. Next, the traveling drive mechanism re-drives and travels, stops above any other cutter, and the above operation is sequentially repeated until the arrangement of the plurality of cutters is completed. When the arrangement of the plurality of cutters is completed in this way, the heating wire is heated, and the elevating mechanism is driven. Then, the frame descends while being guided by the pole, and the heating wires of the plurality of cutters blow the styrofoam block to a predetermined thickness, and a plurality of plate-like products having a predetermined thickness are manufactured.

〔Example〕

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 and FIG.
As shown in the figure, a styrofoam block A disposed on a mounting table B and a frame 9 which is brought into contact with and separated from the styrofoam block A while being guided by a pole 11 by driving of an elevating mechanism 10.
A plurality of cutters movable between both ends of the frame 9, an operation mechanism 6 for moving an arbitrary one of the plurality of cutters, and a traveling drive mechanism 65 for traveling the operation mechanism 6 on the rail 7. , The frame 9 is connected to the lifting mechanism 10.

As shown in FIG. 2, the mounting table B includes a support C for horizontally mounting the Styrofoam block A, and a cooling fan for the Styrofoam block attached to the support C.
And a C _1, is supported horizontally by a plurality of legs 22. The guide rods 12 are vertically attached to the legs 22 on both sides of the mounting table B, respectively.
Support frames 21 are respectively horizontally installed between the upper portions of the 12. In addition, poles 11 are erected at the four corners of the mounting table B, and a support frame 21 is screwed over the plurality of poles 11 via fasteners.

The lifting mechanism 10 functions to raise and lower the frame 9 by rotating a plurality of chain wheels 102, as shown in FIGS. A chain 103 is wound around each chain wheel 102. One end of the chain 103 has an end of the frame 9 and the other end of the chain 103 has a balance weight 1
04 are connected, and this balance weight 10
4 is accommodated in the guide rod 12 so as to be able to move up and down. The chain wheel 102 is fitted to both ends of a shaft 19, and the shaft 19 is rotatably mounted between both ends of the support frame 21 via a plurality of bearings 20. Each shaft 19
At the end of the drive unit 10 composed of a motor located on the support frame 21
One drive shaft is connected via a clutch mechanism 105.
Each clutch mechanism 105 is composed of a slip motor, a slip wheel, or another mechanism, and has a balance weight 10
It functions to contribute to labor saving by utilizing the self-weight descent action of 4.

As shown in FIGS. 4, 7, and 9, the frame 9 has four corners slidably fitted to the plurality of poles 11 and contacts the poles 11 on both sides at both ends. The rolling roller 13 is rotatably supported by a shaft. Both sides of the frame 9 are formed of an inner channel steel and an outer channel steel having different widths, and the pair of the inner channel steel and the outer channel steel oppose each other with a gap therebetween. Each inner grooved steel is screwed on its upper part with a rail 7 oriented in the left-right direction in FIG. 2 and on its upper part with a rack 83 via fasteners or brackets. Further, a mounting piece 14 is hung below the inner grooved steel via a stator 15, and a support rod 4 having a circular cross section which is oriented in the left-right direction in FIG. It is screwed horizontally.
Further, each electrode and guide support rod 41 is formed in a cylindrical shape,
It is erected between both ends of the frame 9 respectively,
It is provided below and parallel to the support rod 4 below the outer grooved steel.

Further, as shown in FIGS. 4, 6, 7, 8, and 9, each cutter slides on the support rod 4 suspended on the frame 9 and the support rod 41 for electrode and guide. The slide holder 3 includes a slide holder 3 movably fitted thereto, a brake mechanism 5 provided on the slide holder 3, and a heating wire 1 provided between a pair of opposed slide holders 3. Each slide holder 3 is slidably fitted to the support rod 4 via the upper inner side, and slidably fitted to the electrode / guide support rod 41 via the inner outer side. I have. The slide holder 3 has a support hole 31 for the brake mechanism 5 formed at the upper center thereof, and the guide roll 2 is rotatably supported at the lower portion thereof.

The brake mechanism 5 includes a brake piece 33. One end of the brake piece 33 is pivotally connected to the pivot 35, and the other end thereof comes into contact with and separates from the electrode / guide support rod 41. An operator 32 is attached to the upper part of the brake piece 33, and this operator
32 is adapted to protrude into the support hole 31. Also,
The pivot 35 is supported by a pair of bearing plates 37 and a plurality of mounting screws 38. A spring 36 for pressing the brake piece 33 against the electrode / guide support rod 41 is built in a lower outer side of the slide holder 3 via a fastener.

The heating wire 1 is made of a nichrome wire or the like, and is stretched between lower portions of the opposed slide holders 3. The end of the heating wire 1 is wound around the lower part of the guide roll 2,
Is connected to a spring 18 for adjusting tension, and a heating wire mounting portion 34 for supporting the spring 18 is attached to the lower outside of the slide holder 3 so as to be adjustable.

The traveling drive mechanism 8 is provided on a rail 7 installed on one side upper surface of the frame 9 via a fastener, a slide portion 64 fitted on the rail 7, and disposed on the other upper surface of the frame 9. Traveling rails 63, these rails 7,
A slide portion 64 and a traveling roller 63 support the traveling carriage 65 so as to be able to travel. The traveling carriage 65 includes a drive unit 81 including a motor installed via the mounting screw 17, a pinion 82 that is rotated by the drive of the drive unit 81 via a connection shaft 84, and a frame 9.
And a rack 83 that meshes with the pinion 82.

Further, as shown in FIG. 10, the operation mechanism 6 includes a drive unit 61 such as a fluid cylinder provided on the traveling carriage 65, and a lock piece 62 slidably inserted inside the sleeve 66. The drive section 61 and the lock piece 62 are connected by the joint 16. The lock piece 62 has its tip end facing the operator 32 in the support hole 31 of the slide holder, and functions to move up and down to operate the brake piece 33.

D shown in FIG. 2 is a computer. The computer D is a data processing unit (not shown) to which setting data of the elevating mechanism 10 and the operating mechanism 6 are inputted,
And a comparison processing unit for comparing the setting data of the operation mechanism 6 with the input internal fixed data.
The computer D may control the raising and lowering operation of the raising and lowering mechanism 10, the traveling arrangement of a plurality of cutters, the stopping of the raising and lowering mechanism 10 and the cutter, and the energization of the heating wire 1 of the cutter in accordance with a program.

In the above configuration, in order to cut the Styrofoam block A to a predetermined thickness and form it into a plate-like body, first, the Styrofoam block A is set on the plurality of supports C, and the apparatus is operated.

Then, the driving unit 81 of the traveling drive mechanism 8 is driven to rotate the pinion 82, and the traveling carriage 65 travels in the direction of the arrow in FIG. 2 while being guided by the rail 7, and is collected on the end side of the frame 9. The user stops above any one of the plurality of cutters (the cutter in the front row at the right end in FIG. 7). Traveling trolley 65
Is stopped, each drive unit 61 is driven to lower the lock piece 62, and this lock piece 62 passes through the support hole 31 of the slide holder 3 in an arbitrary cutter, and the operator of the brake mechanism 5
32 is pressed, and the brake piece 33, which has been in contact with the electrode / guide support rod 41, rotates downward while compressing the spring 36, thereby releasing the fixing of the slide holder 3 to the electrode / guide support rod 41.

Next, while the above-mentioned fixed state is being released, the driving unit 81 of the traveling drive mechanism 8 is driven again to rotate the pinion 82,
65 travels in the direction of the arrow in FIG. 2 with an arbitrary cutter and moves to a predetermined position. When the traveling carriage 65 moves to a predetermined position and stops, each drive unit 61 is driven to lock the lock piece.
The lock piece 62 releases the pressing operation of the operating element 32, and the brake piece 33, which has been separated from the electrode and guide support rod 41, is rotated upward by the restoring action of the spring 36 to rotate upward. It comes into pressure contact with the guide rod 41. By the pressing action of the brake piece 33, an arbitrary cutter is fixed to the electrode / guide supporting rod 41.

Next, the driving unit 81 of the traveling drive mechanism 8 is driven again to rotate the pinion 82, and the traveling carriage 65 is guided by the rail 7 while being guided.
Travels in the direction of the arrow in FIG. 2 and stops above any other cutter (the left cutter of the front row cutter), and thereafter the above operation is repeated until a plurality of cutter arrangements are completed.

When the arrangement of the plurality of cutters is completed, the heating wire 1
Is energized and heated, and the drive unit 10 of the lifting mechanism 10 is
1 drives. Then, the frame 9 descends while being guided by the plurality of poles 11, the plurality of cutter heating wires 1 blow the styrofoam block A to a predetermined thickness, and a plurality of plate-like products having a predetermined thickness are manufactured. Becomes

〔The invention's effect〕

As described above, according to the present invention, it is possible to automatically select and arrange a cutter for cutting foamed resin,
There is an effect that the setting change and adjustment time can be greatly reduced. Further, the working efficiency can be remarkably improved to contribute to labor saving, and the cutting preparation work can be simplified, the cutting error can be reduced, and the reliability can be improved. Further, the work associated with the change of the setting conditions is easy, and it is possible to perform the processing safely and quickly without troublesome response to each processing condition, and it is possible to increase the productivity. .

[Brief description of the drawings]

The drawings show an embodiment of a foamed resin product cutting apparatus according to the present invention. FIG. 1 is a plan view, FIG. 2 is a front view, FIG. 3 is a side view, and FIG. FIG. 5 is an enlarged longitudinal sectional view taken along the line II-II in FIG. 1, FIG. 6 is an enlarged longitudinal sectional view taken along the line III-III in FIG. 4, FIG. 8 is a partially cutaway side view, FIG. 9 is an enlarged sectional detail view thereof, and FIG. 10 is an enlarged vertical sectional view taken along line IV-IV of FIG. A: Styrofoam block, B: Mounting table, C:
Supporting tool D Computer 1 Heating wire 2 Guide roll 3 Slide holder 4 Support rods 4 and 5
…… Brake mechanism, 6 …… Operation mechanism, 7 …… Rail, 8
... travel drive mechanism, 9 ... frame, 10 ... elevating mechanism,
11 ... pole, 31 ... engaging hole, 32 ... operator, 33 ... brake piece, 44 ... electrode / guide support rod, 61 ... drive unit,
62 …… Lock piece, 63 …… Roller, 65 …… Truck, 81…
… Drive unit, 82… Pinion, 83… Rack, 101… Drive unit.

Claims (4)

(57) [Claims] 1. A plurality of cutters, each comprising a pair of slide holders for mounting a heating wire capable of fusing a styrofoam block, are movably arranged on a support rod, and each slide holder has a brake mechanism for fixing the support rod to the support rod. A frame having an operation mechanism for engaging and disengaging the brake mechanism and selectively moving on the support rod, and a traveling drive mechanism for traveling the operation mechanism on a rail, on a mounting table of the styrofoam block. A foamed resin product cutting device, which is arranged on a pole standing upright by a lifting mechanism so as to be movable up and down. 2. The apparatus according to claim 2, wherein said slide holder is slidably fitted to a support rod and an electrode / guide support rod provided on opposite sides of said frame with a pair of spaces therebetween. 2. The foamed resin product cutting device according to claim 1, further comprising a wire attachment portion and a brake piece pivotally attached to and separated from the electrode / guide support rod, and a return spring and an operation element are provided on the brake piece. 3. The operating mechanism has a lock piece that is fitted into and disengaged from an engaging hole provided in the slide holder by a driving unit, and is protruding and retractable, and is fitted on a traveling roller and a rail. 3. The vehicle according to claim 1, wherein the traveling drive mechanism is provided on a traveling vehicle provided with a slide portion, and the traveling drive mechanism includes a driving portion on the traveling vehicle, a rack provided on a frame, and a pinion meshed with the rack. An apparatus for cutting a foamed resin product according to the above. 4. The lifting mechanism wherein the frame is connected and suspended by a chain mounted on a chain wheel rotated by a drive unit, and a balance weight is provided on the chain. Or the foamed resin product cutting device according to 3.