Light guide plate water gap die cutting machine

Abstract

This utility model relates to the field of sprue removal technology, and in particular to a sprue die-cutting machine for light guide plates. It includes a worktable, on which a lower die is fixedly mounted. A placement groove is formed on the upper surface of the lower die, with an opening on one side of the groove and a movable positioning plate on the other side. A horizontal displacement mechanism on the lower die drives the movable positioning plate closer to or further from the opening. A mounting frame is mounted on the worktable, and a hydraulic cylinder is mounted on the mounting frame. A lifting seat is fixedly connected to the driving end of the hydraulic cylinder. An upper die is fixedly connected to the bottom of the lifting seat via a connecting rod. The upper die corresponds to the placement groove, and a side connecting block is fixedly connected to the side of the upper die closest to the opening. A through groove is formed on the side connecting block. A cylinder is mounted on the lifting seat, and a mounting base is fixedly connected to the driving end of the cylinder. A punching block is fixedly connected to the bottom of the mounting base, and the punching block is slidably connected to the through groove. This utility model reduces problems such as cut cracking and unevenness caused by manual operation, ensuring the quality of the light guide plate.

Description

Technical Field

[0001] This utility model relates to the field of sprue removal technology, and more specifically to a sprue die-cutting machine for light guide plates. Background Technology

[0002] Light guide plates originated from the LCD screens of laptops. They are high-tech products that transform line light sources into surface light sources. They are made of optical-grade acrylic / PC as the base material, injection molded, and have a wide range of applications.

[0003] During the injection molding process of the light guide plate, sprue marks are formed. After the light guide plate is formed, the sprue marks need to be cut off to ensure that the finished light guide plate has a neat and aesthetically pleasing external shape.

[0004] Currently, the main method for cutting the sprue marks on light guide plates is manually using a pen knife. After cutting, the cut area is selectively sanded smooth to ensure aesthetics. However, this manual method of processing light guide plate sprue marks is relatively inefficient, the product is relatively hard, and the cut is prone to cracking or unevenness, affecting quality. Utility Model Content

[0005] The purpose of this invention is to provide a light guide plate sprue die-cutting machine that reduces problems such as cut cracks and unevenness caused by manual operation, thereby ensuring the quality of the light guide plate.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A light guide plate sprue die-cutting machine includes a worktable, on which a lower die is fixedly mounted. A placement groove is formed on the upper surface of the lower die, with an opening on one side of the placement groove and a movable positioning plate on the other side. A horizontal displacement mechanism is provided on the lower die to drive the movable positioning plate closer to or further away from the opening. A mounting frame is provided on the worktable, and a hydraulic cylinder is mounted on the mounting frame. A lifting seat is fixedly connected to the driving end of the hydraulic cylinder. An upper die is fixedly connected to the bottom of the lifting seat via a connecting rod. The upper die corresponds to the placement groove. A side connecting block is fixedly connected to the side of the upper die near the opening, and a through groove is formed on the side connecting block. A cylinder is mounted on the lifting seat, and a mounting base is fixedly connected to the driving end of the cylinder. A punching block is fixedly connected to the bottom of the mounting base, and the punching block is slidably connected to the through groove.

[0008] Furthermore, a groove is provided on the upper surface of the lower mold; the horizontal displacement mechanism includes a lead screw rotatably disposed in the groove, a slide block is threadedly connected to the lead screw, the movable positioning plate is fixedly connected to the slide block, and a lead screw motor for driving the lead screw to rotate is installed on one side of the lower mold.

[0009] Furthermore, the punching block has a cutting edge on the side near the opening.

[0010] Furthermore, the mounting base is slidably connected to the connecting rod.

[0011] Furthermore, a waste collection box is provided on the workbench near the opening.

[0012] Furthermore, the upper surface of the lower mold is provided with a vacuum adsorption hole that connects to the bottom of the worktable, and the vacuum adsorption hole is connected to a vacuum pump through a vacuum tube.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This application places the light guide plate on the placement groove of the lower die. The movable positioning plate, in conjunction with the horizontal displacement mechanism, can adjust the position according to different specifications of light guide plates, improving the equipment's versatility. A hydraulic cylinder drives the upper die to press down and fix the light guide plate, ensuring stability and preventing shaking during cutting. A cylinder drives the punching block to slide within the through groove, achieving precise punching of the light guide plate's sprue. Compared to traditional manual pen knife cutting, this die-cutting machine significantly improves the efficiency and precision of sprue removal, reduces problems such as cut chipping and unevenness caused by manual operation, and ensures the quality of the light guide plate. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0016] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0017] Figure 3 This is a schematic diagram of the structure of the present invention. Figure 3 .

[0018] 1. Workbench; 2. Lower die; 201. Placement slot; 202. Opening; 203. Slide groove; 204. Vacuum adsorption hole; 3. Moving positioning plate; 4. Mounting bracket; 5. Hydraulic cylinder; 6. Lifting seat; 7. Connecting rod; 8. Upper die; 9. Side connecting block; 901. Through groove; 10. Cylinder; 11. Mounting seat; 12. Punching block; 13. Lead screw; 14. Slide seat; 15. Lead screw motor; 16. Waste collection box. Detailed Implementation

[0019] like Figures 1 to 3As shown, a light guide plate sprue die-cutting machine includes a worktable 1, on which a lower die 2 is fixedly mounted. A placement groove 201 is formed on the upper surface of the lower die 2. An opening 202 is formed on one side of the placement groove 201, and a movable positioning plate 3 is provided on the other side of the placement groove 201. A horizontal displacement mechanism is provided on the lower die 2 to drive the movable positioning plate 3 closer to or further away from the opening 202. A mounting frame 4 is provided on the worktable 1, and a hydraulic cylinder 5 is mounted on the mounting frame 4. The hydraulic cylinder 5 drives... A lifting seat 6 is fixedly connected to the moving end. An upper mold 8 is fixedly connected to the bottom of the lifting seat 6 via a connecting rod 7. The upper mold 8 is set corresponding to the placement groove 201. A side connecting block 9 is fixedly connected to the side of the upper mold 8 near the opening 202. A through groove 901 is opened on the side connecting block 9. A cylinder 10 is installed on the lifting seat 6. A mounting base 11 is fixedly connected to the driving end of the cylinder 10. A punching block 12 is fixedly connected to the bottom of the mounting base 11. The punching block 12 is slidably connected to the through groove 901.

[0020] The upper surface of the lower mold 2 is provided with a sliding groove 203; the horizontal displacement mechanism includes a lead screw 13 rotatably disposed in the sliding groove 203, a slide block 14 threadedly connected to the lead screw 13, the movable positioning plate 3 being fixedly connected to the slide block 14, and a lead screw motor 15 for driving the lead screw 13 to rotate is installed on one side of the lower mold 2.

[0021] The punching block 12 has a cutting edge on the side near the opening 202.

[0022] The mounting base 11 is slidably connected to the connecting rod 7.

[0023] A waste collection box 16 is provided on the workbench 1 near the opening 202.

[0024] The upper surface of the lower mold 2 is provided with a vacuum adsorption hole 204 that connects to the bottom of the worktable 1. The vacuum adsorption hole 204 is connected to a vacuum pump through a vacuum tube.

[0025] Working principle:

[0026] First, the light guide plate is placed in the placement groove 201 of the lower mold 2. According to the size of the light guide plate, the lead screw motor 15 is started, and the slide block 14 and the moving positioning plate 3 are moved through the lead screw 13 to accurately position the light guide plate. Then, the vacuum pump is started, and the light guide plate is adsorbed and fixed on the lower mold 2 through the vacuum adsorption hole 204. Next, the hydraulic cylinder 5 drives the lifting seat 6 and the upper mold 2 to move downward, further pressing the light guide plate. At this time, the cylinder 10 drives the mounting seat 11 and the punching block 12 to slide in the through groove 901 of the side connecting block 9. The cutting edge of the punching block 12 is used to punch the sprue of the light guide plate. The punched waste falls into the waste collection box 16 through the opening. After the punching is completed, the hydraulic cylinder 5 drives the upper mold 8 to rise, and the cylinder 10 drives the punching block 12 to reset. The processed light guide plate is taken out, thus completing one sprue die-cutting operation.

[0027] This invention significantly improves the processing efficiency of light guide plate nozzles by replacing manual operation with a mechanical automation structure. Compared with manual cutting, it can greatly shorten the processing time of a single light guide plate and meet the needs of mass production. The design of horizontal displacement mechanism and vacuum adsorption holes enhances the adaptability of the equipment to light guide plates of different specifications and reduces the limitations of equipment use.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A light guide plate sprue die-cutting machine, characterized in that: The system includes a workbench (1), on which a lower mold (2) is fixedly mounted. The upper surface of the lower mold (2) has a placement groove (201). One side of the placement groove (201) has an opening (202), and the other side of the placement groove (201) has a movable positioning plate (3). The lower mold (2) has a horizontal displacement mechanism that drives the movable positioning plate (3) to move closer to or away from the opening (202). The workbench (1) has a mounting frame (4), on which a hydraulic cylinder (5) is mounted. The driving end of the hydraulic cylinder (5) is fixedly connected to a lifting mechanism. The lifting seat (6) has an upper mold (8) fixedly connected to its bottom via a connecting rod (7). The upper mold (8) is set in relation to the placement groove (201). A side connecting block (9) is fixedly connected to the side of the upper mold (8) near the opening (202). A through groove (901) is provided on the side connecting block (9). A cylinder (10) is installed on the lifting seat (6). A mounting seat (11) is fixedly connected to the driving end of the cylinder (10). A punching block (12) is fixedly connected to the bottom of the mounting seat (11). The punching block (12) is slidably connected to the through groove (901).

2. The light guide plate sprue die-cutting machine as described in claim 1, characterized in that: The upper surface of the lower mold (2) is provided with a slide groove (203); the horizontal displacement mechanism includes a lead screw (13) rotatably disposed in the slide groove (203), a slide block (14) is threadedly connected to the lead screw (13), the movable positioning plate (3) is fixedly connected to the slide block (14), and a lead screw motor (15) for driving the lead screw (13) to rotate is installed on one side of the lower mold (2).

3. The light guide plate sprue die-cutting machine as described in claim 1, characterized in that: The punching block (12) has a cutting edge on the side near the opening (202).

4. The light guide plate sprue die-cutting machine as described in claim 1, characterized in that: The mounting base (11) is slidably connected to the connecting rod (7).

5. The light guide plate sprue die-cutting machine as described in claim 1, characterized in that: A waste collection box (16) is provided on the workbench (1) near the opening (202).

6. The light guide plate sprue die-cutting machine as described in claim 1, characterized in that: The upper surface of the lower mold (2) is provided with a vacuum adsorption hole (204) that connects to the bottom of the worktable (1). The vacuum adsorption hole (204) is connected to the vacuum pump through a vacuum tube.

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