JPS63165090A - Laser beam machine - Google Patents

Abstract

PURPOSE:To automate classification work of parts cut on the irradiation surface by providing in parallel first and second ventilation means to send air in a straight line according to the belt width to an endless belt having an air permeable through hole with the rise surface as the irradiation surface. CONSTITUTION:A substrate 4 is supplied from a master roll 3 to the vertical surface 1b to the endless belt 1 supported rotatably by three rolls 2 and laser light 6 is projected thereon and the surface of the substrate 4 is scanned two- dimensionally, by which the substrate 4 is cut into the parts 4a with a prescribed shape. At this time, the air is supplied to only a nozzle 8a of a part corresponding to scraps 4b excepting the parts 4a of the substrate 4 by the first ventilation means 8 where many nozzles 8a are provided in the direction of the width of the substrate 4 and the scraps 4b are dropped to a downward scrap accumulator 10. On the other hand, the parts 4a reach the bottom 1c in a state being drawn by the endless belt 1 and mounted on a downstream side conveyor 11 and transferred to the next stage by the ventilation of the second ventilation means 9.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a laser processing device, and particularly to a laser processing device that cuts out a predetermined shape from a strip of fabric, leather, etc. by scanning a laser beam, and automatically separates this shape. The present invention relates to a laser processing device capable of processing.

[Conventional technology]

Conventional laser processing equipment continuously supplies the raw fabric roll from a fabric spreading device to a cutting conveyor placed horizontally on the downstream side, and irradiates the fabric spread on this cutting conveyor with a laser beam while cutting the fabric into a predetermined area. Cut it into parts in the shape of
The parts are separated manually and the remainder of the strip is collected as scrap in a scrap processing device located downstream.

In addition, the laser beam reaches the laser head from a laser oscillator placed on one side of the cutting conveyor via a light guiding means constituted by an optical system, and is condensed and irradiated onto the fabric on the conveyor. . This laser head is attached to a frame placed across the conveyor, and the laser beam from this laser head is scanned vertically and horizontally while irradiating the fabric to obtain parts of a predetermined shape from the fabric. There is.

[Problem that the invention seeks to solve]

Conventional laser processing equipment was configured as described above, so the system that combined the spreading device and the cutting conveyor was long, with a total length of about 10 m, and the parts cut on the cutting conveyor were manually removed from the conveyor. In addition to being taken out, sorted, and transported to the next process, scraps were collected from a cutting conveyor and collected in a scrap processing device. However, as the work of manually sorting parts in this way becomes more automated, the more automation such as other spreading equipment progresses, the higher the proportion of the total work involved in sorting. There will be a limit to how quickly the process can be accelerated.

This invention was made to solve the above problems, and proposes a laser processing device that automates the sorting of parts.

[Means for solving the problem] In addition to providing a belt, the first belt blows air in a straight line according to the belt width. A second ventilation means is arranged in parallel inside the belt, and the first ventilation means blows air only to the scrap located on the irradiation surface to separate it, and then the developed parts flowing down are transferred from the belt to the next process. The laser processing device is configured to do this.

[Effect]

According to this invention, after predetermined parts are cut from the fabric, air is blown onto the scraps, so that only the scraps are separated from the irradiated surface.

〔Example〕

The present invention will be explained below based on the embodiment shown in FIGS. 1 and 2. (1) is an endless belt rotatably supported by three rolls (2);
) has ventilation holes, such as the ventilation holes shown in the figure (
1a) is formed.

(3) is a raw fabric roll that supplies fabric (0) from above to the vertical surface (lb) of the endless belt (1) by a roll (not shown), and (5) is a raw material roll that is placed in front of the vertical surface (1b). This irradiation source (5) is equipped with a lens drive unit that focuses the laser beam (6) on a predetermined position, and a mirror that guides the laser beam (6) to the fabric (0). It consists of a head drive device, etc., and the fabric (
A laser beam (8) two-dimensionally scans the surface of 4) to cut a part (4a) of a predetermined shape.

Further, (7) is a partition plate arranged in parallel above the lower surface (IC) of the endless belt, and this partition plate (7) allows the belt (1
) is a suction chamber (
R1) and an outside air supply system (not shown), the air supply chamber (R
2) (this air supply chamber also communicates with the exhaust system). The first ventilation means (8) has a large number of nozzles (8a) arranged in series to blow air in a straight line in the width direction of the fabric (0) according to the dimensions of the fabric (0). The air flow was controlled by the switching valve (not shown) of each nozzle (8a) so that the air was sent only to the scrap (4b) excluding the parts, and the scrap (4b) was sorted from the parts and (4a), and the air was sorted in this way. Scrap (4
b) is collected in a scrap accumulator (10) arranged below the vertical plane (1b). Also, this scrap accumulator (
The scraps (4b) of 10) are transported by a conveyor (not shown). Second ventilation means (9)
is formed in the same manner as the first ventilation means (8), and its nozzle (9a) is arranged to face the lower surface (lc) of the endless belt, and by blowing air in a straight line, air is sucked to the lower surface (IC). The parts (4a) are transferred onto a downstream conveyor (11) which is arranged parallel to the lower surface (1c) with a gap between them. The transferred parts (4a) flow along the downstream conveyor (11) in the direction of the arrow in the figure, are collected in a parts collecting section (not shown), and are transferred to the next process. Note that (12) is a shielding plate that prevents the laser beam (6) from passing through the endless belt (1).

Next, the ventilation control system of the first ventilation means (8) will be explained with reference to the block diagram of the processing control device shown in FIG. The first ventilation means (8) is connected to a cutting control section that instructs the irradiation source (5) of the laser beam (8) to determine the shape of the part (4a), and the ventilation is controlled according to the instructions from this control section. In other words, the processing control device is the first processing bag that performs production management, pattern making, grading, or marking processing! (200) and a downstream processing bag 21 (300) that performs other direct processing. A data input means (101) such as a paper tape is connected to the processing device (20G).

The processing device (200) includes a production control section (201), a pattern making/grading section (hereinafter simply referred to as "rPG section") (202), and a marking section (203).
), and among these, the Production Management Department (20
1) has the function of commanding processing based on the data necessary for production control such as the production quantity and type of the entire processing work, and the PC section (202) uses the data input from the production control section (201). Based on this, pattern making and grading work is performed to calculate data regarding specific patterns. Here, pattern making is the creation of two specific processing patterns, and grading is the creation of variations of patterns according to each size from a standard pattern. This PC section (202
) is input to the marking section (203), and the marking section (203) generates a pattern based on the data i1! ! (4) The data of this marking section (203), which performs the process of arranging with a high yield on the top, is input to the subsequent processing bag Fa (300), and based on the data input from the marking section (203), the laser beam ( 6), and scan the fabric (0) to the specified part (4a).
) to perform cutting processing.

This processing device (300) is mainly composed of a cutting control section (301), which is connected to an oscillator operation panel (302), a head drive operation panel (303), and a servo controller (304). The laser oscillator (305) and head drive device (30B) are connected via these.
The irradiation source (5) is scanned by driving and controlling the irradiation source (5), and a predetermined part (
The drive is controlled to cut 4a). Furthermore, the cutting control section (301) is also connected to a roll drive device (307) that drives the rolls, a downstream conveyor (11), and a first ventilation means (8), which are connected to the cutting control section (301).
It will be driven under the control of 1). Among them, the first ventilation means (8) is adapted to operate in accordance with the head driving device (30111). In other words, the processing device (2
When the part (4a) formed based on the data of the marking part (203) of 00) is cut, the part (4a) is cut.
4a) and scrap (4b) are sucked and transferred downward. And these (4a) and (4b) are the first
When reaching the ventilation means (8), a command is issued from the cutting control section (301) to the first ventilation means (8), and the scrap (4b)
Only the nozzle (8a) corresponding to the section is communicated with the air supply system, and the scrap (4b) is first separated from the vertical surface (ib) of the endless belt, and the scrap accumulator (10) is separated from the vertical surface (ib) of the endless belt.
), while part (4a) is attached to an endless belt (
1) reaches the lower surface (IC), and is transferred to the downstream conveyor (11) by air blowing from the second ventilation means (9) at the downstream end. That is, unlike the first ventilation means (8), all the nozzles (9a) of the second ventilation means (9) are uniformly communicated with the air supply system.

As is clear from the above configuration, the fabric (0 is the part (0) fed from the raw fabric roll (3) on the vertical plane (1b)
4a) and sort the scraps (4b) by the first ventilation means (8) to a scrap accumulator (lO).
The parts (4a) are transferred to the downstream conveyor (1st stage) by the action of the second ventilation means (9) on the lower surface (1c), and transported to the next process.

It goes without saying that the endless belt (1) is not limited to being supported by three rolls (2), and may be supported by three or more rolls.

〔Effect of the invention〕

As described above, according to the present invention, the remaining band-shaped bodies are automatically sorted from the shaped bodies by blowing air in a straight line along the width direction of the band-shaped bodies only to the remaining band-shaped bodies excluding the cut shaped bodies at the irradiation surface. I can do it.

[Brief explanation of the drawing]

FIG. 1 is a schematic perspective view showing a device according to an embodiment of the present invention, and FIG. 2 is a block diagram showing a control system of the device according to the present invention. In the figure, (1) is an endless belt. (la) is a ventilation hole, (1b) is a vertical surface (irradiation surface),
(1c) is the lower surface, (8) and (9) are the first and second ventilation means, (300) is the processing device, and (301) is the cutting control section (air blowing control means). Agent Masuo Oiwa Figure 2 Figure 10

Claims (1)

[Claims] After two-dimensionally scanning the irradiated surface with a laser beam and cutting the strip developed on the irradiated surface into a predetermined shape, the rising surface is cut into a laser processing device that separates the shaped body from the remaining strip. An endless belt made of air permeable through holes that are continuously supplied as an irradiation surface, and linear first and second ventilation means arranged in parallel with each other on the lower inner side of this belt are sequentially provided, After separating and removing air from the first ventilation means through the through-holes to the remaining band-shaped body located on the irradiation surface of the endless belt, the second
A laser processing device characterized by comprising a blower control means for blowing air from a ventilation means to transfer a developed object.