JP4441107B2 - Cutting device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a disconnect device for particularly simple removal of swarf flammable.
[Prior art]
[0002]
Resin sheets such as polymethyl methacrylate plates used for optical materials and the like are manufactured by a continuous production line as shown in FIG. That is, the molded product extruded from the extruder 4 is passed through a polishing machine 8 composed of a plurality of finishing rolls 5, 6 and 7 (calendar rolls) to obtain a resin sheet 1 having a predetermined thickness to which gloss and smoothness are imparted. It is done. Next, after the surface protective films 2 and 2 are stuck on both sides by the masking machine 9, the resin sheet 1 is sent to the side cutter 11 through the take-up machine 10, and both sides are continuously sawed and further crossed. The sheet product 3 is obtained by being cut into a predetermined length by the cutter 12. The sheet products 3 are sequentially carried out of the line by the stacker crane 13 using a sucker and stacked.
[0003]
As the cross cutter 12, a laser type sheet cutting machine is used instead of a saw cutting machine such as a circular saw. This is because in a saw cutting machine, saw dust may enter between the resin sheet 1 and the surface protective films 2 and 2 during cutting, resulting in poor quality. However, since the cutting waste of the resin sheet 1 deposited below the laser type sheet cutting machine is flammable, the laser light irradiated downward from the head 14 of the laser type sheet cutting machine is cut as shown in FIG. There is a possibility that the cut scraps 15 may ignite upon hitting the scraps 15. For this reason, it is necessary to clean the inside of the cutting waste receptacle 16 every time the cutting waste 15 accumulates to some extent on the cutting waste receptacle 16.
[0004]
As a method for removing cutting waste, there is known a method in which water is flowed into the receptacle 16 for cleaning. However, in this method, since wastewater is generated, wastewater treatment is required, and since water is used, the equipment is Rust prevention measures are also required.
[0005]
[Problems to be solved by the invention]
An object of the present invention, dry without the use of water, yet is to provide a simple disconnect device that can remove the swarf.
[0006]
[Means for Solving the Problems]
Switching DanSo location according to the present invention for solving the aforementioned problems is located on the transport path direction of the resin sheet is a material to be cut, perpendicular to the resin sheet conveying direction to cut the resin sheet to a predetermined length A laser-type sheet cutting machine that moves horizontally in the direction, and a slit that is placed on the resin sheet below the head of the laser-type sheet cutting machine and that fixes the resin sheet and through which laser light passes is provided at the bottom. Grooved clamp, the head cover of the laser-type sheet cutting machine that closes the upper opening of the clamp, and the telescopic bellows-type cover attached to both ends, and the laser-type sheet cutting machine moves for cutting the sheet It provided over the entire length of the path beneath the path of the cuttings receptacle for receiving the cutting chips that have fallen from the resin sheet to be cut, the swarf Only vessels, characterized in that the and a removably retained holder so as to be taken out from the side of the sheet conveying path.
[0007]
That is, in the present invention, since the cutting waste receiver that receives the cutting waste generated when cutting the resin sheet with the laser type sheet cutting machine is detachably held by the holder, the cutting waste in the cutting waste receiver. When a certain amount of is accumulated, the receptacle can be removed from the holder to remove the cutting waste. Therefore, before a large amount of cutting waste accumulates in the cutting waste receptacle, the cutting waste receptacle can be easily removed by removing it from the side of the sheet conveyance path, and there is a danger that the cutting waste will be ignited by laser light. Can be greatly reduced.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 and 2. 1 and 2 show the cie over preparative cutting device written in this embodiment. That is, this cutting device includes a laser-type sheet cutting machine 20 that cuts the resin sheet 1, a cutting waste receiver 22 that receives cutting waste 21 that falls from the resin sheet 1 when cutting the resin sheet 1, and this cutting waste And a holder 23 detachably holding the receptacle 22.
[0009]
As shown in FIG. 1, the laser type sheet cutting machine 20 is provided with a head 24 at the lower portion, and laser light is irradiated downward from the head 24. The laser type sheet cutting machine 20 is held by a unit 25 and a horizontal movement motor 26 attached thereto to a frame 27 through a rack and pinion 28 so as to be horizontally movable.
[0010]
A clamp 29 for fixing the sheet 1 at the time of cutting is provided below the head 24. Laser light emitted from the head 24 reaches the lower resin sheet 1 through a slit 30 provided at the center of the bottom of the clamp 29. The resin sheet 1 is continuously conveyed in the direction of the arrow by the conveying roller 31, moved by a predetermined length from the cutting position, and then stopped. The sheet 1 is cut in a predetermined length by horizontally moving in a direction orthogonal to the conveying direction of the sheet 1.
[0011]
As shown in FIG. 2, the clamp 29 is formed in a groove shape, and the upper opening is closed by a head cover 33 of the laser type sheet cutting machine 20 and telescopic bellows type covers 34 and 35 attached to both sides thereof. Yes. The bellows type covers 34 and 35 are for allowing the head cover 33 to move horizontally together with the cutting machine 20. The clamp 29 and the head cover 33 are respectively provided with air suction pipes 36 and 37 for sucking and removing combustion gas and cutting waste generated by cutting.
[0012]
On the other hand, the cutting waste 21 generated by cutting falls to the lower cutting waste receptacle 22 and accumulates. As shown in FIG. 2, the cutting waste receptacle 22 is a vertically long container housed in a groove-shaped holder 23 whose both ends are open, and can be easily inserted and removed from the holder 23. An air suction port 38a of an air suction pipe 38 for sucking and removing combustion gas and cutting waste is disposed at the other end of the holder 23, and the combustion gas and cutting waste generated by cutting is sucked and removed. Although FIG. 2 shows a state in which a part of the cutting waste receptacle 22 is pulled out from the holder 23, the cutting waste receptacle 22 is accommodated in the holder 23 at the time of cutting.
[0013]
When the cutting operation of the resin sheet 1 is continuously performed by the laser type sheet cutting machine 20 and the cutting waste 21 is accumulated in the cutting waste receptacle 22 to some extent, the cutting waste receptacle 22 is pulled out from the holder 23 and cut. The scrap 21 is removed, the receptacle 22 is accommodated in the holder 23 again, and the cutting operation is resumed. At this time, since the cutting waste receptacle 22 can be pulled out to the side of the conveyance path of the resin sheet 1 and the internal cutting waste 21 can be removed, the removal work of the cutting waste 21 is easy.
[0014]
The timing for pulling out the cutting waste receptacle 22 from the holder 23 is not particularly limited because it is determined by the amount of accumulated cutting waste 21 or the risk of ignition, but generally the inner volume of the cutting waste receptacle 22 is not limited. On the other hand, it is preferable to remove the cutting waste 21 with a deposition amount of about 2/3 or less, preferably about 1/2 or less. In addition, the accumulation degree of the cutting waste 21 is detected by a sensor, and when a predetermined amount is accumulated, an alarm or the like may be notified or the cutting device may be stopped.
[0015]
【The invention's effect】
According to the switching DanSo location of the present invention, since detachably is held by the holder the swarf receptacle for receiving the swarf generated when cutting the resin sheet in a laser type sheet cutting machine, using water Without being dry, the cutting debris can be easily removed, and the risk that the cutting debris is ignited by the laser beam can be greatly reduced.
[Brief description of the drawings]
FIG. 1 is a schematic explanatory view showing a cutting device according to an embodiment of the present invention.
2 is a schematic exploded perspective view showing a cutting waste removing mechanism in the cutting apparatus of FIG. 1; FIG.
FIG. 3 is a schematic explanatory view showing a normal continuous production line for producing a sheet product.
FIG. 4 is a schematic explanatory view showing a normal sheet cutting state using a laser type sheet cutting machine.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Resin sheet 20 Laser type sheet cutting machine 21 Cutting waste 22 Cutting waste receptacle 23 Holder 31 Conveying roller

Claims (2)

A laser type sheet cutting machine that is positioned above the conveyance path of the resin sheet that is a material to be cut and horizontally moves in a direction orthogonal to the resin sheet conveyance direction in order to cut the resin sheet to a predetermined length;
A groove-shaped clamp that is placed on the resin sheet below the head of the laser-type sheet cutting machine , fixes the resin sheet, and is provided with a slit through which laser light passes, and
A head cover of a laser type sheet cutting machine that closes the upper opening of the clamp, and a telescopic bellows type cover attached to both ends thereof;
A cutting waste receptacle that is provided over the entire length of the path below the path in which the laser-type sheet cutting machine moves for sheet cutting, and receives cutting waste dropped from the resin sheet to be cut,
A cutting device comprising: a holding tool detachably held so that the cutting waste receptacle can be taken out from the side of the sheet conveying path. The cutting apparatus according to claim 1, wherein the head cover, the clamp and the holder of the laser type sheet cutting machine are each provided with an air suction pipe for sucking and removing combustion gas and cutting waste.

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