JPH03248791A - Cutting method for synthetic resin material - Google Patents

Abstract

PURPOSE:To prevent product material from sticking to material to be cut and to reduce the occurrence rate of defective by providing an air nozzle and an air suction port in a clamper and removing and sucking the product material on the upper surface of the material to be cut. CONSTITUTION:While moving a laser beam nozzle 7 by a driving unit 10, cutting is carried out and after cutting, the product material left on the upper surface of the material 1 to be cut is sucked and removed by air injection from the air nozzle 14 of the clamper 2 and air suction from the air suction port 13 thereof. The clamper 2 and a laser beam reflection plate 3 are then released and the product material stuck on the lowered laser beam reflection plate 3 is blown away by air blowing from a front side nozzle 4 and it is sucked by a dust collector 12 from a rear side duct 5. Consequently, the product material produced at the time of cutting can be sucked completely without being spread around.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for removing products and gases generated during cutting of synthetic resin materials in a laser processing machine.

[Conventional technology]

As described in Japanese Unexamined Patent Application Publication No. 62-45491, the conventional apparatus performs cutting while blowing away products and gas generated during laser irradiation by jetting assist gas from within a laser irradiation nozzle. Other Tokukai Showa 6
As described in Japanese Patent No. 2-45490, a suction mechanism is installed inside the nozzle or in a portion adjacent to the nozzle to perform cutting while removing products and gas by suction.

[Problem to be solved by the invention]

The former conventional technique has a problem in that the products and gas are scattered around and adhere to the object to be cut and the laser condensing mirror.

In the latter conventional technique, since the suction removal is performed only on the upper surface, the products between the workpiece and the reflector cannot be removed and adhere to the reflector, resulting in the diffused reflection effect of the laser during the next cutting. There was a problem in that the cutting speed was reduced by half, making it impossible to cut the workpiece.

In addition, it is necessary to bring the nozzle tip of the suction removal mechanism close to the workpiece, but when cutting with a fixed width using a reflector, it is necessary to physically bring the workpiece and reflector into close contact with each other using a clamp. Therefore, the above conditions become impossible and the suction removal effect is lost.

The present invention aims to solve the above problems and send a product with stable quality to the next process.

[Means to solve the problem]

In order to achieve the above purpose, an air outlet and a suction port were provided in the clamp to remove and suction products on the top surface of the workpiece, and air was blown from a nozzle on the front side of the clamp and a duct on the rear side of the clamp. The product remaining on the laser reflection plate is removed by suction using a dust collector. Additionally, air is ejected from within the laser nozzle to prevent products from adhering to the laser condenser lens.

[Effect]

The clamp for the object to be cut has a structure that opens only at the laser irradiation position, and the air outlet has a small area to increase the jet speed, and the suction port has a small area to increase suction efficiency. Since the area is large, the product on the top surface of the object to be cut can be removed. The products adhering to the laser reflecting plate after cutting are removed by blowing air from a nozzle on the front side at a specified angle, and are sucked by a dust collector having a duct on the rear side.

Furthermore, air jetting from within the laser nozzle prevents products from adhering to the laser condensing lens.

As a result of the above, since no products generated during cutting remain, stable cutting conditions can always be obtained, and products with cut quality of feldspar can be sent to the subsequent process.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a side view of the mechanism of the laser processing machine according to this method, and FIG. 2 is a detailed plan view of the clamper. The clamper 2 and the laser reflector 3 are driven by an air cylinder 11, Clamp. Thereafter, the laser beam from the laser oscillation tube 9 is reflected by the laser reflection plate 3, and the laser beam is condensed by the laser condenser lens 8 to irradiate the object 1 to be cut.

At this time, the laser nozzle air outlet 6 is inserted into the laser nozzle 7.
Air is ejected from the duct 5, and suction by the dust collector 12 is started from the duct 5. This operation continues until the end of one cycle.

Then, the drive unit 10 moves the laser nozzle 7 to perform cutting, and after cutting, the air outlet 1 of the clamper 2
The product remaining on the upper surface of the object to be cut 1 is suctioned and removed by the air jet from 4 and the suction from the air suction port 13. Then, the clamper 2 and the laser reflector 3 are released, and the product adhering to the lowered laser reflector 3 is transferred to the front nozzle 4.
The dust collector 12 sucks the air from the rear duct 5. This allows complete suction without scattering the products generated during cutting into the surrounding area. The products sucked in by the dust collector are collected by a filter, and the dust collector's exhaust port is connected to local exhaust equipment for gas, so it has no impact on the surrounding environment and is highly safe.

〔Effect of the invention〕

According to the present invention, since products and gas generated during cutting are removed, adhesion to the workpiece is prevented8, thereby reducing the incidence of defects in the next process. Furthermore, since the products remaining on the reflective plate after cutting are removed, deterioration in cutting quality and deterioration of the surrounding environment can be prevented.

[Brief explanation of drawings]

Fig. 1 is a side view of the mechanical part of a laser processing device according to an embodiment of the present invention, Fig. 2 is a plan view of the clamp part, Fig. 3 is a side sectional view of the cutting mechanism of the present invention, and Fig. 4 is a conventional cutting method. FIG. 3 is a side cross-sectional view of the mechanism section. DESCRIPTION OF SYMBOLS 1... Object to be cut, 2... Clamper, 3... Laser reflector, 4... Nozzle, 5... Duct, 6... Laser nozzle air outlet, 7... Laser nozzle , 8...
・Laser focusing lens, 9... Laser oscillation tube, 10...
・Drive unit, 11... Air cylinder, 12...
Dust collector, 13... Air suction port, 14... Air jet port, 15... Opening, 16... Suction nozzle, 17.
...Product.

Claims (1)

[Claims] 1. In a laser processing machine that cuts synthetic resin materials by irradiating a laser from above and diffusely reflecting the laser from a reflector plate installed on the bottom of the workpiece, the product and gas generated during cutting are removed by suction. A method for cutting a synthetic resin material, which comprises cutting the material and, after the cutting, removing the product adhering to a reflective plate by suction.