JPH05290U - Laser cutting machine - Google Patents

Abstract

(57) [Summary] [Purpose] In a laser cutting machine, fumes generated during cutting remove odors after cutting and cause discomfort to workers. [Structure] An exhaust air intake port 16 is installed below a honeycomb structure support base 3 at a sorting work site of a cutting part 8 of a laser cutting machine.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention relates to the deodorization of a laser cutting machine.

[0002]

[Prior Art]

 3 and 4 are a side view and a plan view of a conventional device, respectively. 1 is a conveyer device for conveyance, 2 is a conveyor drive shaft, 3 is a honeycomb-shaped support stand installed on the conveyor surface, and the honeycomb is movable by the conveyer device 1 so that the width is about 300 mm It is made up of a structure in which blocks are arranged side by side. Reference numeral 4 denotes an object to be cut (a cloth in the example of the present invention), and the object to be cut 4 is extended on the honeycomb. (Indicated by A part) 5 is a cutting chamber (indicated by B part) that covers a part of the conveyor to prevent laser beam from leaking to the outside for safety and at the same time collects fumes generated during cutting. Have a function. 6 is an exhaust port installed near the back surface of the honeycomb below the cutting chamber, and 7 is an exhaust duct installed both below the cutting chamber and below the honeycomb. Reference numeral 8 indicates a state in which the cloth 4 is cut into a predetermined shape in the cutting chamber and then carried out by the conveyor. (Shown in Part C). Reference numeral 9 is a laser oscillator, 10 is a laser optical path duct, 11 is a laser processing head, and the laser light transmitted through the laser path duct 10 (not shown) is focused on the bed.

Next, the operation will be described. In FIG. 3 and FIG. 4, an operator located near the spreading portion A of the conveyor 1 manually spreads the cloth on the conveyor 1 from a work table (not shown) installed outside the conveyor 1. .. When the spreading is completed, the honeycomb is moved in the direction of the arrow through the conveyor driving pulley by the switch of the operation panel (not shown), and the cloth 4 is conveyed into the cutting chamber 5. Laser cutting is started by the transportation completion command. Since laser cutting is a combustion process, fumes are generated during cutting. These fumes are continuously exhausted to the outside through the exhaust port 6 and the duct 7.

The cutting is completed in about 1 minute, the conveyor 1 is driven again, and the cut cloth portion is carried out to the pick-up C section. Here, the operator collects the cut parts and separates them from the residual fabric. In the meantime, the cloth spreading work of the cutting cloth 4 is carried out next time in the cloth spreading part, and the cloth 4 is successively carried into the cutting chamber. Practically, it is a system that balances the work time of the spreading section, the cutting section, and the sorting section to perform the cutting operation continuously and efficiently. Note that FIG. 5 is a perspective view of the cutting portion, and 12 is a gate type processing head support mechanism, which is movable in the longitudinal direction on the conveyor. Further, only the processing head 11 can be slid in the width direction. FIG. 6 shows a processing head portion, 13 is a laser beam, 14 is a reflection mirror, 15 is a condenser lens, 21 is a nozzle, and the laser beam 13 is condensed on the cloth through a reflection mirror 14 and a lens 15. Assist gas (air) is not ejected from the nozzle 21 so that the fumes in the cutting portion do not flow back into the lens 15. Below the honeycomb 2, the air is exhausted by a blower (not shown) in the direction of the arrow. 7 and 8 show a mirror swing type laser cutter. In this method, there is a mirror swinging part in the center of the cutting chamber, and the Heymen mirror is rotated in any direction, so that the laser cutting can be performed without moving the processing head 11 near the honeycomb 3 as shown in FIGS. It is possible.

[0005]

[Problems to be solved by the device]

 However, in this case, the exhaust gas is discharged from the upper part of the cutting chamber. The reason is that the processing head 11 is unnecessary in this method. For this reason, it is excellent for high-speed machining, but it is difficult to effectively use lower exhaust. In the conventional example of Fig. 3 and Fig. 4, due to the restriction from the cutting tact time, the air is exhausted downward only for more than 10 seconds until the cutting is completed, the cut object is carried out of the cutting chamber and is not exhausted sufficiently, and the residual humor is cut. It remains attached to the object. Therefore, it was difficult to use simultaneous downward exhaust in the cutting process. Further, in the mirror swing method of FIGS. 7 and 8, the air is exhausted only from the upper part of the cutting chamber, which is not sufficient. In each case, there was a problem that the odor remained in the sorting area after cutting, making the operator uncomfortable.

The present invention has been made to solve the above problems, and an object thereof is to obtain a laser cutter capable of obtaining a deodorizing effect by exhaust.

[0007]

[Means for Solving the Problems]

 The laser cutting machine according to the present invention is a mirror-oscillating laser cutting machine having a laser cutting section and a cut section, which are divided working sections, and has a honeycomb structure of the separating section separately from the exhaust device above the laser cutting section. This is a laser cutter equipped with an exhaust air inlet under the fabric support table, equipped with any of the following. (1) The exhaust air intake port should consist of at least one that is equal to or shorter than the length of the cutting chamber in the longitudinal direction. (2) The exhaust air intake will be configured to reduce the intake force as it moves away from the cutting chamber in distance. (3) The exhaust air intake port has multiple partitions or is composed of multiple independent intake ports.

[0008]

[Action]

 The exhaust air intake port in this invention is installed under the honeycomb structure fabric support table of the sorting and cutting section and is exhausted.

[0009]

【Example】

 Example 1. An embodiment of the present invention will be described below with reference to the drawings. 1 and 2, 16 is a funnel-shaped intake port according to the present invention, 17 is a damper installed at the outlet of each intake port, and 18 is an exhaust duct connected to a blower installed outdoors. Here, the outer dimensions of the funnel-shaped intake port 16 are substantially equal to the width of the cutting chamber 5, and the longitudinal direction is equal to the length of the cutting chamber 5. 19 is a spacer made of a flexible material (eg, a rubber plate) installed around the upper part of the funnel-shaped intake port 16, and 20 is a gap between the spacer and the back surface of the honeycomb, which is set so as not to hinder the movement of the honeycomb. To be done. 1 (d) shows an example in which one funnel-shaped intake port 16 is set, and FIG. 2 (a) shows an example in which three funnel-shaped intake ports 16 are set. FIG. 2B shows the relational position between the honeycomb 3 and the spacer 20. The funnel-shaped intake port 16 is installed as shown in the drawing from immediately below the cutting chamber 5 on the side where the material to be cut out is carried out.

While the objects to be cut 4 are carried out from the cutting chamber by the conveyor and sorting work is performed, fumes adhering to the objects to be cut are exhausted from the funnel-shaped intake port 16 below the honeycomb. The object to be cut out at one time is the longest cutting room manager. Cutting time is about 20 seconds at 1-2 m. Therefore, the exhaust must be effective within this time. The sorting work is performed continuously. Therefore, the object to be cut out is about 5 m at the longest. As a problem when exhausting air below the honeycomb, for example, pieces of cutting material cut into layers of 1 to 2 are pulled downward with a slight suction force and stick to the honeycomb, and the cutting material is manually cut during the sorting operation. It takes a lot of time to pick up a piece. In order to improve this problem, a plurality of (three in this case) intake ports are installed as in the embodiment of FIG. The action is as follows: The suction force of the three intake ports is reduced as it moves away from the cutting side, and the cutting chamber side exhausts as much as possible and the sorting work is performed by exhausting loosely from the center to the rear. Made it effective. Adjust the intake air volume with the damper 17. Further, since the cut objects that have been cut are sequentially carried out from the cutting chamber 5, the fumes adhering to the cut objects decrease as the distance from the cutting chamber increases. As for the deodorizing effect of exhaust gas, it is effective to strengthen the exhaust gas downward so that it does not hinder the sorting work, and at the same time, it is effective to carry out stepwise exhaust in a wide range of the sorting work space as mentioned above. In FIG. 2B, a flexible plate material such as rubber is inserted in the gap between the intake port 16 and the honeycomb 3 to prevent the intake of air from the outside as much as possible.

[0011]

[Effect of the device]

 As described above, according to the present invention, by installing the deodorizing device by exhaust gas in the sorting work place outside the cutting chamber, the sorting work environment is significantly improved and the production capacity of the laser cutting machine is fully demonstrated. The effect that came to come is big. Note that, as described above, it is clear that the same effect can be obtained even if the laser processing machine is installed in a laser processing machine having a processing head. With the present invention, the effect of being able to deodorize by exhaust gas in the next step, which has nothing to do with the cutting step, is remarkable.

[Brief description of drawings]

FIG. 1 is a view showing a laser cutting machine according to an embodiment of the present invention.

FIG. 2 is a view showing a laser cutting machine according to an embodiment of the present invention.

FIG. 3 is a diagram showing a conventional device.

FIG. 4 is a diagram showing a conventional device.

FIG. 5 is a perspective view of a conventional cutting portion.

FIG. 6 is a view showing a conventional processing head portion.

FIG. 7 is a diagram showing a conventional device.

FIG. 8 is a diagram showing a conventional device.

[Explanation of symbols]

 1 Conveyor Device for Transport 2 Conveyor Drive Shaft 3 Honeycomb Support 4 Object to be Cut (Cloth) 5 Cutting Chamber 6 Exhaust Port 7 Exhaust Duct 8 Cutting Parts 9 Laser Oscillator 10 Laser Optical Path Duct 11 Laser Processing Head 12 Gate-type Processing Head Support Mechanism 13 Laser Light 14 Reflecting Mirror 15 Condensing Lens 16 Funnel-shaped Inlet 17 Damper 18 Exhaust Duct 19 Spacer 20 Gap 21 Nozzle

Claims (1)

[Claims for utility model registration] [Claim 1] A mirror oscillating laser cutting machine having a laser cutting section and an operation section for sorting objects to be cut, which are sorted separately from the exhaust device above the laser cutting section. What is claimed is: 1. A laser cutting machine in which an exhaust air inlet is installed below a honeycomb structure fabric support of a cutting section, the laser cutting machine comprising any one of the following. (1) At least one exhaust air intake port is equal to or shorter than the length of the cutting chamber in the longitudinal direction. (2) The exhaust air intake port is configured to reduce the intake force as the distance from the cutting chamber increases. (3) The exhaust air intake port has a plurality of partitions or is composed of a plurality of independent intake ports.