KR102672785B1 - Edge Cutting Apparatus for Decorative Board Sheet - Google Patents

Abstract

The present invention is a cosmetic plywood sheet that significantly improves production efficiency and minimizes the burden of labor costs by automatically cutting the upper and lower limbs of the space between the surplus width of the upper and lower limbs of the decorative plywood and the space between the continuously supplied unit decorative plywood. Discloses a device for edge cutting.
To this end, the present invention is equipped with a width cutting device consisting of a sliding frame, a lifting frame, a cutting plate, a motor and a cutting disk installed on the lifting frame, and a length cutting device that cuts by lowering the cutting edge diagonally.
Accordingly, the present invention automatically cuts the excess portions on both sides of the plywood where the upper and lower limbs are bonded to the correct width and automatically cuts between the plywood, thereby automating the subsequent process, greatly reducing the burden of labor costs and greatly improving work efficiency. Of course, there is a useful effect that can contribute to quality improvement.

Description

Edge Cutting Apparatus for Decorative Board Sheet}

The present invention is for decorative plywood sheets to implement a smooth subsequent process by automatically cutting the edges of the sheets after adhering sheets such as melamine-impregnated paper and vinyl paper to the surface of various boards such as plywood, fiberboard, and particleboard as a base material. It relates to an edge cutting device.

Conventionally, in order to ensure a smooth follow-up process after attaching a sheet to decorative plywood, a worker cuts each sheet glued to the decorative plywood according to the width, inserts a blade between the decorative plywood, and cuts it to separate all the decorative plywood. It was done.

In this way, in the past, due to reliance on manual work, not only is work efficiency low, but there is a problem of increasing manufacturing costs due to increased labor costs. Also, since the position where the blade is inserted and cut is uneven, the bonded sheets that are laminated and transported through subsequent processes are problematic. The uneven width caused obstacles to subsequent press operations, surface processing operations, stacking transportation, and storage operations.

In addition, as the sheets harden in the winter and sag due to high humidity in the summer, cracks or tears occur due to blade work by workers, resulting in the frequent occurrence of defective products.

In addition, according to Republic of Korea Patent Registration No. 10-1366873 (title of the invention: Edge detection device of a film-attached substrate and laser cutting system including the same; hereinafter referred to as the 'cited invention'), as shown in Figures 1 to 3, the film A camera unit 100 that photographs the attached substrate; A camera driving unit 200 installed at one end of the camera unit 100 and adjusting the substrate capturing direction and substrate capturing tilt angle of the camera unit 100; a stage supporting the film-attached substrate; A lighting unit 300 installed below the stage and irradiating light to the film-attached substrate; and a control unit 900 for controlling the operation of the camera unit 100 and the camera drive unit 200. An edge detection device for a film-attached substrate and a laser cutting system including the same have been proposed.

According to this cited invention, a clearer edge area can be obtained by installing the camera unit 100 at an angle with respect to the film-attached substrate to photograph not only the upper surface but also the side surface of the film-attached substrate, and as a result, the edge can be precisely formed. can be detected.

Additionally, since each corner area of the substrate can be photographed using the four camera units 100 without the need to move the camera unit 100 to each corner area of the film-attached substrate, the edge detection time can be shortened.

Additionally, it is possible to set the line along which the film is scheduled to be cut based on more precisely detected edge information.

On the other hand, according to this cited invention, in addition to the four cameras, the camera driving unit 200, which controls the substrate shooting direction and substrate shooting tilt angle of the camera unit 100, is repetitive as long as it corresponds to the length of the side it is responsible for. The image transmitted by the light from the lighting unit 300 must be captured while moving on the rail 510, and the control unit 900 must read the image transmitted by the light to detect edge information. Rather, the scanner unit must be controlled so that the laser light emitted from the laser light source (not shown) is irradiated along the set cutting line according to the detected edge information, so many expensive devices are required and installation and maintenance are complicated. The cost is excessive, making it practically impossible to apply it for edge cutting of decorative plywood whose added value is not high enough.

In addition, since sophisticated optical work must be performed, the process environment must be clean, but cosmetic plywood manufacturing sites are polluted with various dusts scattered during various processing processes such as cutting, which makes application very difficult.

Republic of Korea Patent Registration No. 10-1366873 (Title of invention: Edge detection device for film-attached substrate and laser cutting system including the same)

The purpose of the present invention is to solve this problem by automatically cutting the upper and lower parts of the excess width where the upper and lower parts of the decorative plywood are glued and the space between the continuously supplied unit decorative plywood, thereby significantly improving production efficiency. We provide an edge cutting device for cosmetic plywood sheets that minimizes labor costs.

In addition, the present invention provides an edge cutting device for decorative plywood sheets that can minimize the defect occurrence rate by allowing the sheet to be cut without cracking or tearing regardless of seasonal changes.

In order to achieve this object, the present invention includes a lifting frame that slides in the direction of the plywood by a cutting plate having width-sensing protrusions that advance and retreat according to the width of the plywood on both sides of the plywood into which the upper and lower limbs are bonded to both sides of the plywood, and A width cutting device that allows a distance cutter, rotated by a motor, to move in the cutting space of the cutting plate by the width moved by the cutting plate;

The cutting angle is lowered and cut in the space between the inner layer plywood of the decorative plywood cut by the cutting means so that the width on both sides matches the width of the plywood,

The press bar is lowered before cutting, and the cutting edge that subsequently descends is inclinedly descended by the cutting cylinder, and the cutting edge that is inclinedly descending is provided with a length cutting device in which the height of one side and the other side are different and are sheared. will be.

In this way, the present invention is such that when the upper and lower limbs enter the plywood with adhesive applied to both sides of the plywood, the cutting means on both sides move and descend according to the position of the detection plate that detects the width of the plywood, and a width cutting device disposed on both sides of the plywood is used. The upper and lower limbs are cut, and the process continues in this state. When the space between the plywood reaches the lower part of the cutting frame of the length cutting device, the press bar is lowered by the press bar lifting cylinder and presses both sides of the area where the cutting blade will pass. , In this state, the cutting blade is inclined to descend by the cutting cylinder, but the cutting blade is manufactured with different heights at the bottom on both sides so that when the cutting blade is lowered, the upper and lower limbs are sheared from one side to the other, thereby forming a unit. Cutting to length is completed. In this way, the present invention automates the subsequent process by cutting the excess portions on both sides of the plywood where the upper and lower limbs are bonded to an accurate width, greatly reducing the burden of labor costs, greatly improving work efficiency, and contributing to quality improvement. .

In addition, in the present invention, the space between the continuously supplied plywood and the plywood is accurately cut using a cutting diagram, and automation is possible by controlling the cutting cylinder and the press bar lifting cylinder.

Moreover, the present invention allows cutting the width or the space between continuously supplied plywood in this way, making it possible to cut in a uniform state without cracking or tearing despite various changing conditions such as season or humidity, thereby reducing losses due to defects. This has the useful effect of preventing, enabling smooth process progress in overlapping loading conditions, and making transportation easier.

Figure 1 is a perspective view showing a conventional edge detection device for a film-attached substrate.
Figure 2 is a side view showing the configuration of a conventional imaging device for edge detection.
3 is a schematic diagram illustrating the electrical configuration of an edge detection device and a laser cutting system.
Figure 4 is a perspective view showing the overall configuration of the edge cutting device for decorative plywood sheets according to the present invention.
Figure 5 is a plan view showing the overall configuration of the edge cutting device for decorative plywood sheets according to the present invention.
Figure 6 is a side view showing the overall configuration of the edge cutting device for decorative plywood sheets according to the present invention.
Figure 7 is a perspective view showing the width cutting device according to the present invention.
Figure 8 is a front view showing the width cutting device according to the present invention.
Figure 9 is a side view showing the width cutting device according to the present invention.
Figure 10 is a plan view showing the width cutting device according to the present invention.
Figure 11 is an explanatory diagram showing a cutting state using a cutting disk and a cutting plate according to the present invention.
Figure 12 is a front view showing the length cutting device according to the present invention.
Figure 13 is a side view showing the length cutting device according to the present invention.
Figure 14 is a plan view showing the length cutting device according to the present invention.
Figure 15 is a diagram illustrating the state of cutting by downward shear force in the length cutting device according to the present invention.
Figure 16 is a front view showing a cutaway view according to the present invention.

With reference to the accompanying drawings, embodiments of the present invention will be described in detail so that those skilled in the art can easily carry out the present invention.

The overall configuration of a specific example of the edge cutting device for decorative plywood sheets according to the present invention is shown in Figures 4 to 6.

The width cutting device 200 of the edge cutting device for decorative plywood sheets according to the present invention is configured as shown in FIGS. 4 to 6 and 7 to 11, and will be described in more detail as follows.

As shown in FIGS. 7 to 10, the width cutting device 200 according to the present invention has a fixing bracket 212 for fixing the width cutting device 200 on both sides of the body with a fixing bracket ( 211) with the fixing bolt 213.

In addition, the fixed frame 210 is formed integrally with the fixed frame 212, and the sliding piston 224 of the sliding cylinder 221 fixed to the fixed frame 210 is connected to the sliding fastening plate of the sliding frame 220. Since it is fixed to (225), the sliding frame 220 slides longitudinally (plywood direction) when viewed with reference to FIG. 5 as the sliding piston 224 of the sliding cylinder 221 moves. In addition, as can be seen from the perspective view of FIG. 7, the lifting piston 234 of the lifting cylinder 231 fixed to the top of the sliding frame 220 is fastened to the lifting fastening plate 235 of the lifting frame 230. The lifting frame 230 is raised and lowered by the operation of the lifting cylinder 231 and the lifting piston 234.

A motor 236 is installed in the center of the lifting frame 230, and a cutting disk 238 is fixed to a rotating shaft protruding forward of the lifting frame 230, so that the cutting disk 238 moves according to the operation of the motor 237. It is rotated. In addition, the sliding frame 220 and the lifting frame 230 are operated forward and backward, and rise and fall, respectively, by the sliding cylinder 221 and the lifting piston 234 of the lifting cylinder 231, and these In order to stabilize the operation, a sliding guide 223 and a lifting guide 233 are installed, respectively, and a sliding shaft 222 and a lifting shaft 236 are installed at the center of them so that the sliding cylinder 221 and the lifting shaft 236 penetrate. When the cylinder 231 operates, accurate sliding and lifting operations are implemented repeatedly and stably.

In addition, the cutting plate 240 is fixed to the front of the sliding frame 220, and the cutting plate is raised and lowered by the lifting cylinder 231 on the cutting recess 241 provided in the center of the front of the cutting plate 240. The lower end of the disk 238 is accommodated, and the width sensing protrusions 242 arranged on both sides of the cutting disk 238 are positioned on both sides of the plywood 101 by pneumatic pressure from the sliding cylinder 221 and the sliding piston 224. They are in close contact, and the plywood 101 moves while maintaining small friction with the width-sensing protrusions 242.

In particular, in order to maintain this low friction state, the cutting plate 240 according to the present invention forms the width sensing protrusion 242 in an arc shape so that only the minimized area of the front portion is in contact with the plywood 101. This state can be confirmed in Figure 11.

In addition, as shown in FIGS. 4 to 6 and 12 to 14, the length cutting device 300 in the present invention has a press bar 306 integrally formed on both front and rear sides of the cutting frame 301. .

This press bar 306 is fixed to the lower end of the piston of the press bar elevating cylinder 231 fixed to both sides of the cutting frame 301 and is lifted, and the press bar 306 is integrated on both front and rear sides of the cutting frame 301. ) The cutting plate 305 is raised and lowered in the space between them, and in particular, a fixing plate 303 is fixed to the side of the cutting plate 305 and the upper side of the cutting frame 301, and the cutting cylinder 302 is placed between these fixing plates 303. ) and the lower end of the piston is fixed so that the cutting cylinder 302 and its piston descend and ascend diagonally, and on the inside of the cutting frame 301 is a display LED that illuminates the cutting line and a cutting device. A nozzle for spraying lubricant may be provided on the plate 305, and the press bar 306 operates when foreign matter is caught between the set distance to the decorative plywood 100 and the press bar 306 is not moved by the set distance. A jamming detection unit and a transparent side blocking plate to stop this may be included in the length cutting device 300.

In this invention, the upper limb 102 and the lower limb 103 made of various materials are supplied in a state in which the upper limb 102 and the lower limb 103 made of various materials are bonded to the upper and lower surfaces of the plywood 101 in the previous process, and the upper limb 102 is each wound on a supply roll. Since the and base 103 are supplied continuously, they are supplied continuously with a gap created between the plywood 101 and the plywood 101 supplied at regular intervals.

In this way, while the upper limb 102 and the lower limb 103 are adhered, the plywood 101 is transported by a transfer roller (not shown) and passes through the width cutting device 200 to reach the length cutting device 300, so that the overall The arrangement configuration is shown in a perspective view, plan view, and side view in Figures 4 to 6.

As can be seen from this, in the state where the upper and lower limbs 102 and lower limbs 103 are supplied by being glued to the upper and lower surfaces of the plywood 101, the present invention first passes through the width cutting device 200, and both sides are plywood ( 101), and the space between the transported plywood 101 and the plywood 101 is cut while passing through the length cutting device 300.

The operation implemented by this configuration of the present invention will be described in more detail with reference to the attached drawings as follows. The present invention is provided with a transport roller and a power device for transporting decorative plywood 100 laminated to a base not shown in the drawing, and a sliding cylinder 221 and a lifting cylinder 231 of the width cutting device 200 according to the present invention. ), the motor 237, the cutting cylinder 302 for longitudinal cutting, and the press bar lifting cylinder 304 are provided with a control device that sequentially supplies and blocks pneumatic pressure and power, and these elements are common in general control devices. Since this is a known technology that is designed, manufactured, and utilized using advanced technology, the description is omitted for convenience.

In the present invention, width cutting devices 200 are arranged on both sides of this body, and the fixed frame 210 of the width cutting device 200 has a sliding cylinder 221 installed and fixed to the rear thereof, and this sliding cylinder 221 ) is that the sliding piston 224 is fixed to the sliding fastening plate 225 of the sliding frame 220, so the sliding piston 224 is a plywood that continuously moves the sliding frame 220 by the pneumatic pressure applied to the sliding cylinder 221. (101) It is pushed to the side, and in the present invention, the cutting plate 240 is protruded and formed in front of the sliding frame 220, so there is no left or right vibration or plywood that is inevitably generated during the transfer process of the plywood 101. (101) Despite the deviation in width, the width sensing protrusion 242 of the cutting plate 240 is in contact with the width sensing protrusion 242 and is always in close contact with the side of the plywood 101 by the motor 237. The rotating cutting disk 238 is accommodated in the cutting recess of the cutting plate 240 and advances and retreats together with the advance and retreat of the sliding frame 220.

That is, a motor 237 is mounted at the center of the lifting frame 230, and the lower end of the cutting disk 238 rotated by the motor 237 is located at a predetermined cutting point of the cutting plate 240. As the plywood 101 moves in the direction of the arrow shown in FIGS. 4 to 6, the upper and lower limbs 102 and 103 of the plywood 101 are cut by the sharp end of the rotating lower end of the cutting disk 238, At this time, the width W becomes the width of the plywood 101 and is transferred to the length cutting device 300.

In this way, the cutting disks 238 on both sides of the plywood 101 cut the upper limbs 102 and the lower limbs 103 with the same width as the plywood 101, so that the upper limbs 102 and the lower limbs 103 are cut as shown in FIG. 11. ) The surplus 104 is cut and separated.

In this process, the present invention controls the pneumatic pressure of the lifting cylinder 231 to adjust the height of the cutting disk 238 rotated by the motor 237, so that the lifting piston 234 of the lifting cylinder 231 is moved to the lifting frame ( By raising and lowering the lifting fastening plate 235 of 230, the lifting frame 230 is raised and lowered, making it possible to adjust the height of the cutting disc 238 installed on the lifting frame 230, and the cutting recess 241 of the cutting plate 240. Of course, the height of the cutting disk 238 must be adjusted in consideration of the specifications and the thickness of the plywood 101.

In addition, since the present invention must ensure that the forward, backward, upward and downward movements of the sliding frame 220 and the lifting frame 230 are stable, a sliding guide 223 and a lifting guide 233 are installed, respectively, and their centers are A sliding shaft 222 and a lifting shaft 236 are installed to pass through each.

In addition, the length cutting device 300 in the present invention has a press bar 306 integrally disposed on both front and rear sides of the cutting frame 301, as shown in FIGS. 4 to 6 and 12 to 14, The press bar 306 is fixed to the lower end of the piston of the press bar elevating cylinder 231 fixed to both sides of the cutting frame 301 and is lifted, and the press bar 306 is integrated on both front and rear sides of the cutting frame 301. ) The cutting plate 305 is placed between the cutting plates 305 to be raised and lowered, and in particular, a fixing plate 303 is fixed to the side of the cutting plate 305 and the upper side of the cutting frame 301, and a cutting cylinder ( 302) and the piston are fixed so that the cutting cylinder 302 and the piston descend and ascend diagonally.

In addition, the cutting diagram 305 of the present invention is designed and manufactured with different heights on both sides of the bottom, as shown in Figure 16, and a lower extension 307 is formed at the bottom of one side in the piston extension direction of the cutting cylinder 302. , a lower shortened portion 308 is formed at the lower end of the other side so that the height is different. Accordingly, in the present invention, when the cutting angle 305 is lowered due to the extension of the piston of the cutting cylinder 302, as shown in Figure 15, when the cutting cylinder 302 is operated and the piston is lowered, the cutting cylinder 302 moves in an oblique direction. Since it is installed, the piston descends diagonally and moves to the lowering space 309 provided on the left side of the cutting frame 301. Accordingly, the lower extension portion 307 of the cutting diagram 305 first cuts the upper limb 102 and the lower limb 103, and then the lower limb 308 side is cut, resulting in normal cutting. Instead, downward shearing is implemented. Accordingly, it can be sheared without breaking during the cutting process, which may occur in the winter, or without tearing, which may occur in an environment with high humidity in the summer, thereby preventing loss due to defects and improving yield. Of course, at this time, the movement of the plywood 101 is stopped by the control device so that the position where the cutting diagram 305 descends is between the plywood 101, and in the stopped state, the cutting diagram 305 Of course, after shearing is performed and shearing is completed, the plywood 101 is transferred again by a transfer roller (not shown).

In addition, since the possibility of the upper limb 102 having a thickness of the plywood 101 being 9 mm or more is low, the intervention of the pressure roller 251 is unnecessary. Therefore, in order to raise the height of the pressure roller (251) to a height higher than the upper limb (102) and prevent interference (103), by rotating the nut of the pressure roller adjuster (250) to raise and lower the bolt, the elastic spring (252) As this pressure is applied, the pressure roller 251 rises, making it possible to stop the operation in a process that does not require the upper limb 102 to be pressed.

On the other hand, in the case of plywood (101) with a thickness of less than 9 mm, there is a high possibility that the upper limb (102) will be lifted, so in order to cut the upper limb (102) and lower limb (103), the nut of the pressure roller adjuster (250) must be tightened as before. When the bolt is lowered by rotating it in the opposite direction, the pressure on the elastic spring (252) is relieved and expanded, and the pressure roller (251) descends, thereby pressing the upper limb (102). By adjusting the rotation speed of the nut, the pressure roller (251) is lowered. ) By appropriately adjusting the pressing pressure of the upper limb 102, the cutting process using the cutting disk 238 can proceed smoothly while preventing the upper limb 102 from lifting.

In the above, the technical idea of the present invention has been described along with the accompanying drawings, but this is an illustrative description of the best embodiment of the present invention and does not limit the present invention, and any person skilled in the art will It is a clear fact that anyone can make various modifications and imitations of dimensions, shapes, and structures without departing from the scope of the technical idea of the present invention, and such modifications and imitations are included in the scope of the technical idea of the present invention.

100: Cosmetic plywood 101: Plywood 102: Upper limb
103: Lower body 104: Surplus 200: Width cutting device
210: fixing frame 211: fixing bracket 212: fixation
213: fixing bolt 220: sliding frame 221: sliding cylinder
222: sliding shaft 223: sliding guide 224: sliding piston
225: sliding fastening plate 230: lifting frame 231: lifting cylinder
233: Elevating guide 234: Elevating piston 235: Elevating fastening plate
236: Elevating shaft 237: Motor 238: Cutting disc
240: Cutting plate 241: Cutting recess 242: Width sensing protrusion
250: Pressure roller adjuster 251: Pressure roller 252: Elastic spring
300: Length cutting device 301: Cutting frame 302: Cutting cylinder
303: Fixing plate 304: Elevating cylinder 305: Cutting view
306: Press bar 307: Bottom extension 308: Bottom shortening portion
309: Descending space part

Claims (5)

The sliding piston of the sliding cylinder fixed to the fixed frame is fixed to the sliding fastening plate of the sliding frame, so that the sliding frame slides as the sliding piston of the sliding cylinder rises and falls, and the lifting piston of the lifting cylinder fixed to the top of the sliding frame moves the lifting frame. It is fastened to the lifting fastening plate and the lifting frame is raised and lowered by the operation of the lifting cylinder and lifting piston.
A motor is installed in the center of the lifting frame, and a cutting disk is fixed to a rotating shaft protruding in front of the lifting frame, so that the cutting disk rotates according to the operation of the motor,
A cutting plate is fixed to the front of the sliding frame, and the lower end of the cutting disc, which is raised and lowered by the lifting cylinder, is accommodated in the cutting recess provided in the center of the front of the cutting plate, and cutting is performed by pneumatic pressure by the sliding cylinder and sliding piston. The width-sensing protrusions arranged on both sides of the disk are in close contact with both sides of the plywood and are moved according to the width of the plywood.
The length cutting device has a press bar integrally disposed on both front and rear sides of the cutting frame, the press bar is fixed to the lower end of the piston of a press bar elevating cylinder fixed to both sides of the cutting frame, and is raised and lowered, and is integrally formed on both front and rear sides of the cutting frame. The cutting blade is raised and lowered in the space between the press bars, and a fixing plate is fixed to the side of the cutting blade and the upper side of the cutting frame, and the lower end of the cutting cylinder and piston are fixed between these fixing plates, so that the cutting cylinder and piston move the cutting blade. An edge cutting device for decorative plywood sheets, characterized in that the edges descend and rise in a diagonal line. According to claim 1,
The sliding frame and the lifting frame are operated forward, backward, and up and down by the sliding cylinder and the lifting piston of the lifting cylinder, respectively. A sliding guide and a lifting guide are installed at the centers of the sliding shaft and the lifting shaft, respectively. An edge cutting device for decorative plywood sheets, characterized in that it is installed so as to penetrate through the sliding cylinder and the lifting cylinder to ensure stable operation. According to claim 1,
In order to reduce friction between the width-sensing protrusions of the cutting plate and the moving plywood, the shape of the width-sensing protrusions is formed in an arc shape so that only a portion of the front portion is in contact with the plywood. An edge cutting device for decorative plywood sheets. . According to claim 1,
The cutting view is an edge cutting device for decorative plywood sheets, characterized in that it has a descending space portion for descending diagonally toward the left side of the cutting frame. According to claim 1,
The cutting edge is an edge cutting device for decorative plywood sheets, characterized in that a lower extension part is formed at the lower end of one side in the piston extension direction of the cutting cylinder, and a lower shortening part is formed at the lower end of the other side, so that the blade height of the cutting diagram is different.