Positioning tool for light guide plate cutting process

Abstract

The utility model discloses a positioning tool for light guide plate cutting process relates to injection part cutting device technical field, specifically is a positioning tool for light guide plate cutting process, when using, the injection part of good stacking is placed on the frame body, the rear side of injection part is aligned with the back baffle, and then the inner end of injection part is aligned with the side block, and subsequently the cylinder rod of pneumatic cylinder contracts, drives the lower frame body to move along the slide rail to the steel band saw place, thereby accomplishing the first cutting, when the pneumatic cylinder rod ejects, the frame body moves to the rear side, at this moment, the back baffle and steel band saw leave enough gap, and the rotating motor drives the screw rod to rotate, and the nut seat converts the rotary motion of screw rod into linear motion, and the connecting arm drives injection part to move inboard through the push -over plate, until injection part is again reached on the side block, thereby the placement of injection part is completed, even if the last cutting, can guarantee the safe operation of equipment, greatly improves the safety factor of staff, avoids mechanical injury.

Description

Technical Field

[0001] This utility model specifically relates to the technical field of injection molding part cutting devices, and more specifically to a positioning fixture used in the cutting process of a light guide plate. Background Technology

[0002] Light guide plates are optical components manufactured using injection molding technology. They are widely used in display, lighting and other fields. The principle is as follows: dried plastic particles (such as polymethyl methacrylate PMMA or polycarbonate PC) are transported and heated by the rotation of the screw of the injection molding machine, turning from solid to melt. The melt is then injected into the mold cavity with microstructures (such as a structure complementary to the optical dots of the light guide plate) by the extrusion of the screw head. After the screw holds pressure and compensates for shrinkage and the mold water channel cools, the melt transforms into a solid shape in the mold cavity. The mold is opened and the semi-finished light guide plate is taken out. After cutting the gate and polishing the light-incident surface, the finished light guide plate is obtained.

[0003] Light guide plate injection molding parts are usually large injection molding sheets. After injection molding, they need to be cut. Traditionally, injection molding parts are manually pushed in one by one after each cut. The vertical cutting machine currently used uses a steel band saw as the main cutting component. It is very dangerous for workers when rotating at high speed, especially when the injection molding part is cut into the last group, its length becomes extremely short, which is very dangerous when pushing it. Utility Model Content

[0004] The purpose of this invention is to provide a positioning fixture for the light guide plate cutting process. We have added a positioning fixture for the light guide plate cutting process to the original vertical slitting machine. During use, the injection molded parts to be cut are placed on the frame. The motor drives the lead screw, enabling the injection molded parts to be automatically positioned and fed. Even in the final cutting stage, the safe operation of the equipment is guaranteed, greatly improving employee safety and reducing the occurrence of mechanical injuries. This solves the technical problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A positioning fixture for cutting a light guide plate includes a frame body, inside which a transmission roller is provided; multiple transmission rollers are provided and arranged in a row, and the two ends of the transmission rollers are movably connected to the frame body through bearings; a rear baffle is fixed to one side of the frame body by bolts, the rear baffle has a sliding groove, and a carriage is provided on the rear side of the rear baffle.

[0007] Two slides are provided, each slide being L-shaped and symmetrically arranged on both sides of the sliding groove; a sliding block is slidably connected inside each of the two slides, and a nut seat is welded to one side of the sliding block; the nut seat is threadedly connected to the lead screw; a connecting arm is bolted to the side of the sliding block away from the nut seat.

[0008] As a further technical solution of this utility model, the two ends of the lead screw are connected to the end plate through bearings with seats, and one end of the lead screw is connected to the output shaft of the rotary motor through a coupling; two end plates are provided, which are respectively fixed to the two ends of the slide.

[0009] As a further technical solution of this utility model, a push plate is provided on the inner side of the end of the connecting arm away from the sliding block, and the push plate is fixed to the connecting arm by bolts.

[0010] As a further technical solution of this utility model, the bottom of both ends of the frame body is slidably connected with slide rails, and a vertical slitting machine is provided at the bottom of the slide rails. A conveyor is installed on one side of the vertical slitting machine for conveying materials. The two slide rails are fixed to the frame of the vertical slitting machine by countersunk bolts.

[0011] As a further technical solution of this utility model, guide rods are provided on both sides of the frame body near the vertical slitting machine, and adjustment frames are slidably connected to the two guide rods, and side stops are fixed between the two adjustment frames.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. In use, the stacked injection molded parts are first placed on the frame, the rear side of the injection molded parts is aligned with the rear baffle, and then the inner end of the injection molded parts is aligned with the side baffle. Then, the cylinder rod retracts, driving the lower frame to move along the slide rail towards the steel band saw, thus completing the first cut. When the cylinder rod pushes out, the frame moves to the rear, leaving a sufficient gap between the rear baffle and the steel band saw. The rotary motor drives the lead screw to rotate, and the nut seat converts the rotational motion of the lead screw into linear motion. The connecting arm drives the injection molded parts to move inward through the push plate until the injection molded parts are again against the side baffle, thus completing the placement of the injection molded parts. This placement process does not require manual intervention. Even in the last cut, the safe operation of the equipment can be guaranteed, greatly improving the safety of employees and reducing the occurrence of mechanical injuries.

[0014] 2. In this utility model, the adjustment frame is slidably connected to the guide rod and fixed by bolts. After loosening the bolts, the position of the adjustment frame on the guide rod can be adjusted, thereby realizing the adjustment of the cutting width of the injection molded part. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This utility model Figure 1 Another perspective illustration.

[0017] Figure 3 This is a schematic diagram of the structure of this utility model in use.

[0018] Figure 4 This utility model Figure 1 A magnified view of a portion of the image.

[0019] Figure 5 This utility model Figure 2 A magnified view of a portion of the image.

[0020] In the diagram: 1-Frame body, 2-Transmission roller, 3-Guide rod, 4-Adjusting frame, 5-Slide rail, 6-Side guard, 7-Rear baffle, 8-Sliding groove, 9-Sliding block, 10-Connecting arm, 11-Push plate, 12-End plate, 13-Nut seat, 14-Lead screw, 15-Rotating motor, 16-Slide carriage. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-5 In this embodiment of the present invention, a positioning fixture for the cutting process of a light guide plate includes a frame body 1, inside which a transmission roller 2 is provided; multiple transmission rollers 2 are provided and arranged in a row, and the two ends of the transmission rollers 2 are movably connected to the frame body 1 through bearings; a rear baffle 7 is fixed to one side of the frame body 1 by bolts, the rear baffle 7 is provided with a sliding groove 8, and a slide 16 is provided on the rear side of the rear baffle 7;

[0023] Two slides 16 are provided, each slide 16 is L-shaped, and the two slides 16 are symmetrically arranged on both sides of the sliding groove 8; a sliding block 9 is slidably connected in the two slides 16, and a nut seat 13 is welded to one side of the sliding block 9; the nut seat 13 is threadedly connected to the lead screw 14; a connecting arm 10 is bolted to the side of the sliding block 9 away from the nut seat 13.

[0024] More specifically, the two ends of the lead screw 14 are connected to the end plate 12 via bearings with seats, and one end of the lead screw 14 is connected to the output shaft of the rotary motor 15 via a coupling; there are two end plates 12, which are fixed to the two ends of the slide 16 respectively; a push plate 11 is provided on the inner side of the end of the connecting arm 10 away from the sliding block 9, and the push plate 11 is fixed to the connecting arm 10 by bolts.

[0025] By adopting the above technical solution, during use, the stacked injection molded parts are first placed on the frame body 1, the rear side of the injection molded parts is aligned with the rear baffle 7, and then the inner end of the injection molded parts is aligned with the side baffle 6. Subsequently, the cylinder rod retracts, driving the lower frame body 1 to move along the slide rail 5 towards the steel band saw, thus completing the first cut. When the cylinder rod pushes out, the frame body 1 moves to the rear side. At this time, the rear baffle 7 and the steel band saw leave sufficient gap. The rotary motor 15 drives the lead screw 14 to rotate, and the nut seat 13 converts the rotational motion of the lead screw 14 into linear motion. The connecting arm 10 drives the injection molded parts to move inward through the push plate 11 until the injection molded parts are again pressed against the side baffle 6, thus completing the placement of the injection molded parts. This placement process does not require manual intervention. Even in the last cut, the safe operation of the equipment can be guaranteed, greatly improving the safety factor of employees and reducing the occurrence of mechanical injuries.

[0026] In this embodiment, slide rails 5 are slidably connected to the bottom of both ends of the frame body 1, and a vertical slitting machine is provided at the bottom of the slide rails 5. A conveyor is installed on one side of the vertical slitting machine for material conveying. The two slide rails 5 are fixed to the frame of the vertical slitting machine by countersunk bolts.

[0027] More specifically, guide rods 3 are provided on both sides of the frame body 1 near the vertical slitting machine. Adjustment frames 4 are slidably connected to both guide rods 3, and side blocks 6 are fixed between the two adjustment frames 4.

[0028] By adopting the above technical solution, the adjustment frame 4 is slidably connected to the guide rod 3 and fixed by bolts. After loosening the bolts, the position of the adjustment frame 4 on the guide rod 3 can be adjusted, thereby realizing the adjustment of the cutting width of the injection molded part.

[0029] As further explanation, in this embodiment, the cylinder is located at the middle position of the bottom of the frame body 1. The cylinder rod is fixedly connected to the frame body 1, and the cylinder body is fixedly connected to the vertical slitting machine. Then, the cylinder can drive the frame body 1 to slide.

[0030] The working principle of this utility model is as follows: When in use, the stacked injection molded parts are first placed on the frame body 1, the rear side of the injection molded parts is aligned with the rear baffle 7, and then the inner end of the injection molded parts is aligned with the side baffle 6. Then, the cylinder rod retracts, driving the lower frame body 1 to move along the slide rail 5 towards the steel band saw, thus completing the first cut. When the cylinder rod pushes out, the frame body 1 moves to the rear side. At this time, the rear baffle 7 and the steel band saw leave a sufficient gap. The rotary motor 15 drives the lead screw 14 to rotate, and the nut seat 13 converts the rotational motion of the lead screw 14 into linear motion. The connecting arm 10 drives the injection molded parts to move inward through the push plate 11 until the injection molded parts are again against the side baffle 6, thus completing the placement of the injection molded parts. This placement process does not require manual intervention. Even in the last cut, the safe operation of the equipment can be guaranteed, greatly improving the safety factor of employees and reducing the occurrence of mechanical injuries.

[0031] The adjusting bracket 4 is slidably connected to the guide rod 3 and fixed by bolts. After loosening the bolts, the position of the adjusting bracket 4 on the guide rod 3 can be adjusted, thereby realizing the adjustment of the cutting width of the injection molded part.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0033] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A positioning fixture for the light guide plate cutting process, characterized in that: The system includes a frame (1) with a transmission roller (2) inside. Multiple transmission rollers (2) are arranged in a row. The two ends of the transmission rollers (2) are movably connected to the frame (1) through bearings. A rear baffle (7) is fixed to one side of the frame (1) by bolts. A sliding groove (8) is provided on the rear baffle (7), and a slide (16) is provided on the rear side of the rear baffle (7). Two slides (16) are provided, and the slides (16) are L-shaped. The two slides (16) are symmetrically arranged on both sides of the sliding groove (8). Sliding blocks (9) are slidably connected in the two slides (16). A nut seat (13) is welded to one side of the sliding block (9). The nut seat (13) is threadedly connected to the lead screw (14). A connecting arm (10) is bolted to the side of the sliding block (9) away from the nut seat (13).

2. The positioning fixture for the light guide plate cutting process according to claim 1, characterized in that: The two ends of the lead screw (14) are connected to the end plate (12) through bearing seats, and one end of the lead screw (14) is connected to the output shaft of the rotary motor (15) through a coupling; there are two end plates (12), which are fixed at both ends of the slide (16).

3. The positioning fixture for the light guide plate cutting process according to claim 1, characterized in that: A push plate (11) is provided on the inner side of the end of the connecting arm (10) away from the sliding block (9), and the push plate (11) is fixed to the connecting arm (10) by bolts.

4. The positioning fixture for the light guide plate cutting process according to claim 1, characterized in that: The bottom of both ends of the frame (1) is slidably connected to slide rails (5), and a vertical slitting machine is provided at the bottom of the slide rails (5). A conveyor is installed on one side of the vertical slitting machine for conveying materials. The two slide rails (5) are fixed to the frame of the vertical slitting machine by countersunk bolts.

5. The positioning fixture for the light guide plate cutting process according to claim 1, characterized in that: The frame body (1) has guide rods (3) on both sides near the vertical slitting machine. Adjustment frames (4) are slidably connected to the two guide rods (3), and side blocks (6) are fixed between the two adjustment frames (4).

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