KR20230032593A - Acrylic plate processing equipment using cnc function - Google Patents

Abstract

An objective of the present invention is to provide an acryl plate processing device using a CNC function which can identify gloss state by inspecting the transmittance of an acryl plate. According to the present invention, the acryl plate processing device using a CNC function comprises: a main body using a vacuum plate to fix an acryl plate; a scan part using processing information of the acryl plate to generate scan information of the acryl plate by scanning the acryl plate while moving in an upper portion of the main body; a driving part cutting, sanding, or polish the surface of the acryl plate while moving on an upper portion of the main body; a lighting part outputting a light from a lower portion of the acryl plate; and a control part driving at least one among a cutter, a sander, and a polisher of the driving part in accordance with the scan information of the acryl plate, and obtaining transmittance with which the light of the lighting part penetrates the acryl plate to determine whether the gloss of the acryl plate is defective. A sensor measuring the distance from the acryl plate is arranged on the driving part to start cutting the surface at a position of 1mm from the surface of the acryl plate toward the inside.

Description

Acrylic plate processing device using CNC function {ACRYLIC PLATE PROCESSING EQUIPMENT USING CNC FUNCTION}

The present invention relates to an acrylic plate processing apparatus using a CNC function.

In order to process acrylic, after cutting the acrylic plate, a product of the desired shape is made. At this time, the cut surface becomes opaque, and as a way to make it transparent again, it is polished under heating using oxygen and LPG, or the cut surface is processed using a mirror polishing machine with a diamond head.

However, when the surface of the acrylic plate is heated and polished, there are problems such as yellowing or cracking over time due to exposure of the acrylic to high temperatures. This has occurred and there is a need for improvement.

Among the prior art, Korean Utility Model Registration No. 20-0320336 (published on July 22, 2003) is about a "vertical electric polisher", and various types of polishing pads used in various polishing steps are installed on one drive shaft. It is installed collectively at one time, and the technical feature is to perform multi-step acrylic plate, bakelite plate, or processing material edge surface or outer surface gloss processing of square materials and rods.

However, the prior art has limitations in that time and cost increase in that a worker manually brings the processing surface of the acrylic plate into contact with the polishing pad, and that the processing quality varies depending on the skill level of the worker.

The technical problem to be solved by the present invention is that the surface of the acrylic plate can be automatically sanded and polished at the same time, and the damage of the acrylic plate can be minimized during work by fixing the acrylic plate using a vacuum plate, The working environment can be kept clean by inhaling the dust generated during processing, and the heat generated during sanding and polishing can be reduced by spraying air. It is to provide an acrylic plate processing apparatus using a CNC function capable of checking the transmittance of the acrylic plate to determine the gloss state.

The problems to be solved by the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below.

An acrylic plate processing apparatus using a CNC function of the present invention for solving the above problems includes a main body for fixing an acrylic plate using a vacuum plate; a scanning unit which scans the acrylic plate while moving an upper portion of the main body using processing information of the acrylic plate to generate scan information of the acrylic plate; a driving unit that cuts, sands, or polishes the surface of the acrylic plate while moving the upper part of the main body; a lighting unit outputting light from a lower portion of the acrylic plate; At least one of a cutter, a sander, and a polisher of the driver is driven according to the scan information of the acrylic plate, and the illumination of the lighting unit obtains light transmittance passing through the acrylic plate to determine whether the gloss of the acrylic plate is defective A controller may be included, and a sensor for measuring a distance to the acrylic plate may be disposed in the drive unit to start cutting the surface at a position 1 mm deeper than the surface of the acrylic plate.

The acrylic plate processing device using the CNC function of the present invention can automatically process sanding and polishing on the surface of the acrylic plate at the same time, thereby improving the work speed and reducing processing cost, and using a vacuum plate to process the acrylic plate. By fixing it, it is possible to minimize the damage of the acrylic plate during work, to keep the working environment clean by inhaling the dust generated during processing, and to reduce the heat generated during sanding and polishing by blowing air on the surface of the acrylic plate. In addition, it is possible to determine whether or not the intaglio pattern formed on the surface of the acrylic plate is defective through vision inspection, and there is an advantage in that the gloss state can be grasped by inspecting the transmittance of the acrylic plate.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description below.

1 is a block diagram of an acrylic plate processing apparatus using a CNC function according to an embodiment of the present invention.
FIG. 2 is an exemplary diagram for explaining a configuration mounted to a driving unit in an acrylic plate processing apparatus using a CNC function according to FIG. 1. Referring to FIG.
FIG. 3 is an exemplary view for explaining that the main body of the acrylic plate processing apparatus using the CNC function according to FIG. 1 fixes the acrylic plate with a vacuum plate.
FIG. 4 is an exemplary diagram for explaining that the acrylic plate processing apparatus using the CNC function according to FIG. 1 measures light transmittance using a lighting unit.
5 is an exemplary diagram for explaining that the acrylic plate processing apparatus using the CNC function according to FIG. 1 obtains a vision image of an intaglio pattern using a vision inspection unit.
FIG. 6 is an exemplary view illustrating determining whether an intaglio pattern is defective in a binary image through the vision inspection unit according to FIG. 5 .

Advantages and features of the present invention, and methods of achieving them, will become clear with reference to the detailed description of the following embodiments taken in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, only these embodiments are intended to complete the disclosure of the present invention, and are common in the art to which the present invention belongs. It is provided to fully inform the person skilled in the art of the scope of the invention, and the invention is only defined by the scope of the claims.

Terminology used herein is for describing the embodiments and is not intended to limit the present invention. In this specification, singular forms also include plural forms unless specifically stated otherwise in a phrase. As used herein, "comprises" and/or "comprising" does not exclude the presence or addition of one or more other elements other than the recited elements. Like reference numerals throughout the specification refer to like elements, and “and/or” includes each and every combination of one or more of the recited elements. Although "first", "second", etc. are used to describe various components, these components are not limited by these terms, of course. These terms are only used to distinguish one component from another. Accordingly, it goes without saying that the first element mentioned below may also be the second element within the technical spirit of the present invention.

Unless otherwise defined, all terms (including technical and scientific terms) used in this specification may be used with meanings commonly understood by those skilled in the art to which the present invention belongs. In addition, terms defined in commonly used dictionaries are not interpreted ideally or excessively unless explicitly specifically defined.

1 and 2, an acrylic plate processing apparatus 100 using a CNC function according to an embodiment of the present invention includes a main body 110, a scanning unit 120, a driving unit 130, and a control unit 140. include

The main body 110 fixes the acrylic plate 10 . A driving unit 130 is formed on the upper part of the body 110, and the driving unit 130 moves the upper part of the acrylic plate 10 in the x-axis, y-axis, and z-axis to move the cutter, the sander, and the polisher to a preset position. move The acrylic plate 10 may be seated on the vacuum plate 111 of the main body 110 . In this case, the processed shape of the acrylic plate 10 may be a flat plate, but is not necessarily limited thereto, and may also have a curved three-dimensional shape. The main body 110 may move the acrylic plate 10 in the x-axis, y-axis, and z-axis, and may move the acrylic plate 10 at a preset angle from the reference plane.

In addition, the main body 110 may fix the acrylic plate 10 by using the vacuum plate 111 and move the acrylic plate 10 in the x-axis, y-axis, and z-axis. This is to minimize impact on the surface of the acrylic plate 10 . In this case, a vacuum cup is formed in the main body 110 to compress the acrylic plate 10 so that it is not separated and separated. The body 110 may readjust the height of the acrylic plate 10 from the reference surface while fixing the acrylic plate 10 using the vacuum plate 111 . The main body 110 may minimize errors by aligning the surface of the acrylic plate 10 and the reference plane.

The scanning unit 120 scans the acrylic plate 10 while moving the upper part of the main body 110 using the processing information of the acrylic plate 10 to generate scan information of the acrylic plate 10 . The scanning unit 120 may determine the position of the acrylic plate 10 using a near-infrared ray sensor. The scan information generated by the scan unit 120 serves to set a reference position so that the driving unit 130 to be described later can process. The scan information may include coordinate information and vector information of the acrylic plate 10 . The scanning unit 120 may rescan the location as the acrylic plate 10 moves.

The driving unit 130 sands the surface of the acrylic plate 10 while moving the upper part of the main body 110 . For example, the drive unit 130 may cut the acrylic plate 10 by mounting the cutter 131-1 on the head 131. In addition, the sanding machine 131-2 may be mounted on the head 131 to sand the surface using sandpaper having a predetermined uniformity. In addition, it is also possible to perform a second sanding process using more uniform sandpaper after the first sanding process. In addition to sandpaper, the sanding machine 131-2 of the drive unit 130 may eject uniform sand particles through a nozzle in a blasting manner to form a preset pattern. This is to form a specific pattern on a part of the acrylic plate 10, and it is also possible to opaque the surface of the acrylic plate 10 by sandblasting along a predetermined pattern.

In addition, the driving unit 130 polishes the surface of the acrylic plate 10 while moving the upper part of the main body 110 . For example, the driver 130 may mount the polisher 131-3 on the head 131 to polish the surface of the acrylic plate 10 using a polishing agent and melt. The driver 130 may repeat the polishing process so that the acrylic plate 10 has a preset gloss level. The driving unit 130 may selectively perform a gloss treatment by distinguishing an intaglio pattern formed on the surface of the acrylic plate 10 or an opaque region from other regions. For example, it is also possible to apply gloss treatment only to other regions without applying gloss treatment to areas where intaglio patterns are formed on the surface of the acrylic plate 10 or to opaque processing.

The control unit 140 drives the driving unit 130 according to the scan information of the acrylic plate 10 . For example, by using the scan information of the acrylic plate 10 obtained from the scan unit 120 and the processing information of the acrylic plate 10, the area to be processed is set in a CNC (computer numerical control) method to obtain a cutting area, Sanding area and gloss area can be set. The control unit 140 obtains the coordinate information and vector information of the acrylic plate 10 according to the scan information of the acrylic plate 10 obtained from the scanning unit 120 of the acrylic plate 10, and the head 131 of the driving unit 130 ), the processing speed, processing direction, and processing time of the cutter 131-1, sander 131-2, and polisher 131-3 to be mounted can be set differently.

In addition, the controller 140 simultaneously operates two or more of the cutter 131-1, the sander 131-2, and the polisher 131-3 to be mounted on the head 131 of the drive unit 130, or It is also possible to control the timing to operate with a time difference.

Referring to FIG. 3 , a vacuum plate 111 is formed on the main body 110 of the acrylic plate processing apparatus 100 using a CNC function to fix the lower part of the acrylic plate 10 . The vacuum plate 111 may fix the acrylic plate 10 using the suction plate 112 . For example, the suction plate 112 may be made of an EPDM rubber material, and a coating layer formed by vacuum-depositing poly-para-xylylene on the surface may be used. This is to avoid leaving rubber marks on the acrylic plate.

In addition, the vacuum plate 111 can be driven by pneumatic or hydraulic pressure, and the height of the vacuum plate 111 can be varied. The main body 110 aligns the height of the reference surface in a state in which the acrylic plate 10 is fixed by the vacuum plate 111. In this case, the elevating unit 113 is connected to the lower part of the vacuum plate 111 so that its height can be adjusted differently in a motor driven manner.

Referring to FIG. 4 , the acrylic plate processing apparatus 100 using a CNC function according to an embodiment of the present invention may further include a lighting unit 150 . The lighting unit 150 is formed on the upper part of the main body 110 and outputs light from the lower part of the acrylic plate 10 . In this case, the intensity and brightness of the light output from the lighting unit 150 may vary according to user settings. The degree of gloss can be determined by obtaining light transmittance, which is the degree to which the light source output from the lighting unit 150 passes through the acrylic plate 10 . For example, it may be determined that the cutting, sanding, or polishing process is not completed in an area of the acrylic plate 10 having low transmittance, and a defect signal may be output.

Meanwhile, the acrylic plate processing apparatus 100 using a CNC function according to an embodiment of the present invention may further include an intake/exhaust unit 160 . The intake/exhaust unit 160 is formed on one side of the main body 110 to suck in dust generated from the surface of the acrylic plate 10 when the driving unit 130 is driven. The intake/exhaust unit 160 absorbs dust in a vacuum suction method and then stores it, thereby minimizing contamination due to fine dust or the like during operation.

In addition, the intake/exhaust unit 160 sprays wind of a preset wind power to the surface of the acrylic plate 10 to reduce heat generated during processing of the acrylic plate 10 . This is to prevent the acrylic plate 10 from being partially heated by cutting, sanding, and polishing to prevent shape deformation, and to prevent workers from being injured in the process of transporting the worked acrylic plate 10 .

Referring to FIGS. 5 and 6 , the acrylic plate processing apparatus 100 using a CNC function according to an embodiment of the present invention may further include a vision inspection unit 170 .

The vision inspection unit 170 takes an image of the surface of the acrylic plate 10 and binary-processes the captured image to inspect whether the intaglio pattern 11 formed on the surface of the acrylic plate 10 is defective. This is to determine whether the intaglio pattern 11 is formed on the surface of the acrylic plate 10 by sanding, whether or not it is defective. The vision inspection unit 170 generates a binary image 600 by processing the pixel values of the vision image for the intaglio pattern 11 as binary data based on a predetermined threshold value. Next, the vision inspection unit 170 sets an inspection target area for the generated binary image 600 and compares the set inspection target area with information on a preset reference area. In FIG. 5, (a) represents a normal binary image, and (b) represents a defective binary image. Through this process, it is possible to determine whether or not the intaglio pattern 11 is defective.

On the other hand, in the acrylic plate processing device using the CNC function of the modified example of the present invention, a sensor (not shown) for measuring the distance to the acrylic plate 10 is disposed in the drive unit 130 at a position 1 mm deeper than the surface of the acrylic plate. By initiating the surface cutting, malfunction of the drive unit can be prevented.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art to which the present invention pertains can be implemented in other specific forms without changing the technical spirit or essential features of the present invention. you will be able to understand Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

Claims (1)

A main body for fixing the acrylic plate using a vacuum plate;
a scanning unit for generating scan information of the acrylic plate by scanning the acrylic plate while moving an upper part of the main body using processing information of the acrylic plate;
a driving unit that cuts, sands, or polishes the surface of the acrylic plate while moving the upper part of the main body;
a lighting unit outputting light from a lower portion of the acrylic plate; and
Driving at least one of a cutter, a sander, and a polisher of the driver according to the scan information of the acrylic plate, and acquiring light transmittance through which the light of the lighting unit passes through the acrylic plate to determine whether the gloss of the acrylic plate is defective Including a control unit,
An acrylic plate processing apparatus using a CNC function, characterized in that a sensor for measuring the distance to the acrylic plate is disposed in the driving unit to start surface cutting at a position 1 mm deeper than the surface of the acrylic plate.

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