Light guide plate cutting device
By using a water jet cold cutting device and a precision positioning system, the problems of melting and uneven cut surfaces during the cutting process of light guide plates have been solved, achieving efficient and precise light guide plate cutting, ensuring cutting quality and saving resources.
Patent Information
- Application Number
- CN202423286039.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing light guide plate cutting tools are prone to melting the light guide plate during the cutting process, resulting in uneven cut surfaces and molten edges, which affects subsequent processing steps.
The water jet assembly is used for cold cutting, combined with a positioning system of lead screw guide rail and universal ball head damping shaft, and limited and fixed with side baffles and backing plates. A scale is used to ensure cutting accuracy and to recycle cutting water resources.
This method achieves a smooth cut surface after the light guide plate is cut, avoids edge melting, improves cutting quality and precision, and saves water resources.
Smart Images
Figure CN223812168U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of light guide plate cutting, especially to a light guide plate cutting device. BACKGROUND
[0002] Light guide plates are widely used in liquid crystal display backlights, medical X-ray film viewers, flat panel lighting, etc., and need to be cut into different sizes for different purposes during production and manufacturing.
[0003] The existing cutting tools for light guide plates mainly include milling cutter cutting and laser cutting, but light guide plates melt at 70 DEG C as a kind of plastic, and the existing technology brings high heat accumulation after continuous cutting, so the milling cutter cutting needs to be sprayed constantly during cutting, and the laser cutting needs to use air blowing to prevent burning, but both methods cannot avoid the problems of uneven cutting surface, strong concave-convex feeling, cutting edge whitening and edge melting of light guide plates, which need further processing, and this will bring inconvenience to subsequent engraving and other steps of light guide plates. INVENTION CONTENTS
[0004] The utility model discloses a kind of light guide plate cutting devices, to solve the problems of the prior art, when cutting light guide plate, avoid melting light guide plate, make light guide plate after cutting work is completed, cutting surface is flat, without edge melting phenomenon, improve light guide plate cutting quality.
[0005] To achieve the above object, the technical scheme provided by the utility model includes: a light guide plate cutting device, including table body and the working platform being set on the surface of table body, the guide rail is fixedly arranged on the opposite sides of table body, the guide rail is slidably connected with moving frame, the moving frame is provided with water jet assembly, the water jet assembly includes water jet opposite the working platform, and the working platform is in grid structure.
[0006] To realize the positioning cutting of light guide plate, the technical scheme provided by the utility model includes: side baffle is arranged around working platform, fixed column is arranged at one corner of side baffle, fixed column is connected to telescopic rod by first universal ball head damping pivot, telescopic rod is connected to backrest by second universal ball head damping pivot, and the lower side of backrest is attached to the upper surface of working platform.
[0007] Preferably, the backrest is L-shaped right-angle backrest.
[0008] To make moving frame keep relatively fixed station during working process, the technical scheme provided by the utility model includes: one of the guide rails on two sides is screw rod guide rail, the screw rod guide rail is connected with rotating handle, and the other guide rail can be the same screw rod guide rail, or it can be conventional straight guide rail.
[0009] Preferably, a rotating hole is arranged at one end of the housing of the screw rod guide, and a rotating handle is arranged and connected to the screw rod guide through the rotating hole.
[0010] Preferably, the rotating handle further extends a rotating wheel outward, and the rotating wheel has a large outer diameter to provide a large torque for an operator to facilitate manual rotation of the screw rod guide.
[0011] To facilitate observation of the cutting size and determination of the cutting position of the light guide plate, the utility model provides a technical scheme further comprising a scale fixedly arranged on the surface of the side baffle.
[0012] To realize recycling of the water used for low-pressure water jet cutting and save resources, the utility model provides a technical scheme further comprising a box arranged below the table body, a filter screen arranged on the top of the box to filter water and PMMA waste, and a drain pipe arranged at the bottom of the box.
[0013] The utility model has the advantages and beneficial effects that:
[0014] 1. The water jet device is used to cut the light guide plate, and as a cold cutting device, the device effectively avoids the problems of uneven cutting surface and edge melting caused by excessively high temperature during cutting.
[0015] 2. The side baffle and the backrest are used to limit and fix the light guide plate, and the screw rod is used as a guide rail to control the relative position of the water jet, thereby improving the cutting precision of the light guide plate. DRAWINGS
[0016] Figure 1 is a structural schematic diagram of an embodiment of the utility model;
[0017] Figure 2 is a sectional view of the embodiment of the utility model along A-A;
[0018] Figure 3 is a local enlarged view of the scale of the embodiment of the utility model;
[0019] Figure 4 is a local enlarged view of the fixed column of the embodiment of the utility model;
[0020] Figure 5 is a local enlarged view of the rotating wheel of the embodiment of the utility model;
[0021] REFERENCE SIGNS
[0022] 1-table body, 2-working platform, 3-guide rail, 31-screw rod guide, 32-linear guide rail,
[0023] 4-moving frame, 5-water jet, 6-side baffle, 7-fixed column, 8-first universal ball head damping pivot, 9-telescopic rod, 10-second universal ball head damping pivot, 11-back plate, 12-rotary hole, 13-rotary handle, 14-rotary wheel, 15-scale, 16-box, 17-filter screen, 18-drain pipe, 19-light guide plate. DETAILED DESCRIPTION
[0024] The specific embodiments of the utility model will be further described below in combination with the drawings and examples. The following examples are only used to more clearly illustrate the technical scheme of the utility model, and cannot be used to limit the protection scope of the utility model.
[0025] Embodiment
[0026] As Figures 1-5 shown: a light guide plate cutting device, including table body 1, the upper surface of table body 1 is provided with work platform 2, the work platform 2 is grating type, the opposite sides of table body 1 are provided with guide rail 3, one of guide rail 3 is screw guide rail 31, the other is linear guide rail 32, and the mobile frame 4 is slidably connected to guide rail 3, the water jet assembly is slidably arranged on the mobile frame 4, and the water jet assembly includes water jet 5, it can be understood that the water jet assembly should also include the connecting water pipe and pressure pump (not shown in the figure) known in the prior art, in order to prevent the mobile frame 4 and water jet 5 from swinging left and right, one of the guide rails 3 is a screw guide rail 31, and the other is a linear guide rail 32, which avoids unnecessary resistance and does not need to adjust the movement of the two guide rails 3 at the same time, but the screw guide rail 31 drives the mobile frame 4, and the linear guide rail 32 only has the effect of sliding connection.
[0027] The side baffle 6 is designed around the work platform 2 of the light guide plate cutting device, the fixed column 7 is arranged at one corner of the side baffle 6, the fixed column 7 is connected to the telescopic rod 9 through the first universal ball head damping pivot 8, the telescopic rod 9 is connected to the back plate 11 through the second universal ball head damping pivot 10, and the back plate 11 is an L-shaped right-angle back plate. The setting of the side baffle 6 can effectively avoid the splashing of water jet, and can also cooperate with the back plate 11 to limit the two corners of the light guide plate 19, so as to avoid the swing of the light guide plate 19 under the action of the water jet 5, thereby affecting the cutting precision. By setting two universal ball head damping pivots and telescopic rods 9, the back plate has a larger range of movement, and the position of the back plate 11 is convenient to adjust.
[0028] A rotating hole 12 is arranged at the outer shell of the screw rod guide rail 31, the screw rod guide rail 31 extends outwards from the rotating hole 12 to a rotating handle 13, and the rotating handle 13 further extends outwards to a rotating wheel 14. Through the arrangement of the rotating handle 13, the operator can directly operate the rotating handle 13 to rotate, so as to rotate the screw rod guide rail 31 and adjust the position of the moving frame 4 and the water jet 5. Further, the rotating handle 13 extends outwards to the rotating wheel 14, and the outer diameter of the rotating wheel 14 is relatively large, which can provide a larger torque for the operator to more easily rotate the screw rod guide rail.
[0029] A scale 15 is further arranged on the surface of the side baffle 6. When cutting the light guide plate 19, the operator can directly read the scale 15 to determine the adjustment accuracy of the screw rod guide rail 31, so as to realize the accurate cutting of the light guide plate 19.
[0030] A box body 16 is further arranged below the table body 1, and the box body 16 is used to receive the water droplets of the working platform 2. A filter screen 17 is further arranged on the upper surface of the box body 16, and the filter screen 17 is mainly used to separate the PMMA waste generated during the cutting of the light guide plate 19. In addition, the filter screen 17 can also avoid the water flow of the water jet 5 from directly impacting the box body 16 through the grid type working platform 2, thereby preventing the damage of the box body 16. A drain pipe 18 is further arranged at the bottom of the box body 16, and the drain pipe 18 is used to collect and transfer the water flow released by the water jet 5.
[0031] Working principle: place the light guide plate 19 on the surface of the working platform 2 and align one corner of the light guide plate with one corner of the side baffle, adjust the telescopic rod 9, the first universal ball head damping rotating shaft 8 and the second universal ball head damping rotating shaft 10, so that the lower surface of the backrest 11 is tightly attached to the working platform 2, and the side of the L-shaped side is tightly attached to one corner of the light guide plate to limit the degree of freedom of the light guide plate 19; rotate the rotating wheel 14, so that the rotating wheel 14 drives the screw rod guide rail 31 to rotate, and the screw rod guide rail 31 drives the moving frame 4 to move in the left and right directions; according to the cutting length of the light guide plate 19, the relevant cutting position is confirmed by reading the scale 15, and after the moving frame is moved to the relevant cutting position, the water gun assembly is moved forward and backward along the moving frame, and the water jet 5 is started to cut the light guide plate 19; when the water flow of the water jet 5 penetrates the light guide plate 19, the water flow with large impact force and the PMMA waste generated during cutting fall onto the filter screen 17, the filter screen 17 separates the PMMA waste, relieves the water flow impact, and the water flow falls into the box body 16 through the filter screen, and the temporarily collected water in the box body 16 can be discharged through the drain pipe 18 for collection and reuse.
[0032] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled persons in the technical field, some improvements and refinements can be made without departing from the technical principles of the present application, and these improvements and refinements should also be regarded as the protection scope of the present application.
Claims
1. A light guide plate cutting device, comprising a table body and a work platform disposed on the surface of the table body, wherein guide rails are fixedly disposed on opposite sides of the table body, and a movable frame is slidably connected to the guide rails, characterized in that: The mobile frame slides to connect the waterjet assembly, which includes a waterjet facing the grid-format work platform.
2. The light guide plate cutting device according to claim 1, characterized in that: Side baffles are installed around the work platform, and a fixed column is installed at one corner of the side baffle. The fixed column is connected to the telescopic rod through the first universal ball joint damping shaft, and the telescopic rod is connected to the back plate through the second universal ball joint damping shaft. The lower side of the back plate is in contact with the upper surface of the work platform.
3. The light guide plate cutting device according to claim 2, characterized in that: The backrest has an L-shaped form.
4. The light guide plate cutting device according to claim 1, characterized in that: One of the guide rails on both sides is a lead screw guide rail, which is connected to the rotating handle.
5. The light guide plate cutting device according to claim 4, characterized in that: A rotating wheel is also provided outside the rotating handle.
6. The light guide plate cutting device according to claim 2, characterized in that: A scale is fixedly installed on the surface of the side baffle.
7. The light guide plate cutting device according to claim 1, characterized in that: A box is installed below the table, a filter screen is installed on the top of the box, and a drain pipe extends from one side of the box.