A belt-type edge grinding device for a polarizing plate

Abstract

The utility model discloses a kind of edge grinding devices of polarizing plate, belong to polarizing plate processing technical field;Including workbench, the placing assembly and two polishing components of being set at the top end of workbench, and the drive component of driving two polishing components to move towards or away from each other;Drive component includes the two fixed plates of being set at the top end of workbench, rotates and is set between the screw rod of two fixed plates, is fixedly set between two fixed plates and with the slide pole of screw rod each parallel, and the first motor of being set in one fixed plate outer wall and with one end of screw rod fixed connection;Two polishing components are respectively commonly set on screw rod and slide pole;Placing assembly includes the placing table of being set at the top end of workbench and being located between two fixed plates, and the limiting device for being used to limit polarizing plate of being set at the top end of workbench is limited.This utility model can realize the purpose that both side edges of polarizing plate are polished simultaneously, and then improve polishing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of polarizer processing technology, and in particular to a belt-type edge grinding device for polarizers. Background Technology

[0002] Polarizers are composed of a thin film made of a highly oriented polymer with linear molecules that are naturally parallel to the film surface. Their fabrication typically involves stretching and fixing the molecules along a single axis, ensuring they are parallel to each other and perpendicular to the surface. Films made in this way exhibit unique light-receptive properties, allowing light to oscillate only within a specific plane in a particular direction. Polarizers are now used in virtually every display module, widely applied in mobile phones, tablets, laptops, monitors, televisions, CNC displays, 3C products, beauty and medical devices, industrial applications, entertainment applications, and automotive displays.

[0003] After production, the edges of the polarizer need to be polished to remove burrs and irregularities, enhance its mechanical strength, and make it more durable during installation and use. At the same time, the polished edges of the polarizer are smoother, which can reduce friction and damage during installation and make it easier to attach the polarizer to LCD or other display devices.

[0004] In existing technologies, edge grinding devices can generally only grind one edge of the polarizer at a time. Only after that edge is ground can the remaining edges be ground, which takes a long time and has low grinding efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a belt-type edge grinding device for polarizers, which can grind both sides of the polarizer at the same time, effectively improving grinding efficiency.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] A belt-type edge-grinding device for polarizing film includes a worktable, a placement assembly and two grinding assemblies disposed at the top of the worktable, and a drive assembly for driving the two grinding assemblies to move towards or away from each other. The drive assembly includes two fixed plates disposed at the top of the worktable, a lead screw rotatably disposed between the two fixed plates, a slide rod fixedly disposed between the two fixed plates and parallel to the lead screw, and a first motor disposed on the outer wall of one of the fixed plates and fixedly connected to one end of the lead screw. The two grinding assemblies are respectively sleeved on the lead screw and the slide rod, the grinding assemblies and the lead screw are threadedly connected, and the grinding assemblies and the slide rod are slidably connected. The placement assembly includes a placement platform disposed at the top of the worktable and located between the two fixed plates, and a limiting device disposed at the top of the worktable for limiting the polarizing film.

[0008] Preferably, the grinding assembly includes a movable base, a gantry frame mounted on the movable base, two rotating rollers rotatably mounted between the gantry frame and the movable base, a grinding belt commonly fitted onto the outer walls of the two rotating rollers, and a second motor mounted on the top of the gantry frame and rotatably connected to one of the rotating rollers; the movable base is commonly fitted onto the lead screw and the slide rod; the movable base and the lead screw are threadedly connected, and the movable base and the slide rod are slidably connected.

[0009] Preferably, each of the rotating rollers is provided with a limiting groove, and the abrasive belt is disposed within the limiting groove.

[0010] Preferably, the extrusion device includes an L-shaped rod disposed at the top of the worktable, a first hydraulic rod disposed at the bottom end of the L-shaped rod, and a first limiting plate disposed at the bottom end of the first hydraulic rod; the first limiting plate is disposed directly above the placement table.

[0011] Preferably, the belt grinding device further includes strip blocks disposed at the top of the worktable and located on both sides of the placement table, a U-shaped plate disposed at the top of each strip block, a second hydraulic rod disposed at the bottom of each U-shaped plate, and a second limiting plate disposed at the bottom of each second hydraulic rod; the top of the strip blocks is flush with the top of the placement table; the length direction of the two strip blocks is perpendicular to the length direction of the lead screw, and both can move along the length direction of the lead screw.

[0012] Preferably, each of the strip blocks has a slider at both ends of its bottom, and the top of the worktable has two horizontal grooves that slide in cooperation with the sliders.

[0013] Preferably, a positioning plate is provided at the top of the worktable and within the two horizontal slide grooves, and a limiting screw adapted to the positioning plate is provided on the slider.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] By setting two grinding components, the opposite two edges of the polarizer can be ground simultaneously. By setting a driving component that drives the two grinding components to move towards or away from each other, the two grinding components can be moved towards each other under the action of the driving component before grinding, until the two grinding components abut against the two sides of the polarizer. After that, the two sides of the polarizer can be ground simultaneously.

[0016] Specifically, by defining the drive assembly as including two fixed plates, a lead screw rotatably disposed between the two fixed plates, a slide rod fixedly disposed between the two fixed plates and parallel to the lead screw, and a first motor disposed on the outer wall of one of the fixed plates and fixedly connected to one end of the lead screw, the lead screw can be rotated under the action of the first motor, thereby causing the two grinding components threadedly connected to the lead screw to move towards or away from each other. Attached Figure Description

[0017] Figure 1 This is a top view of the structure of Example 1;

[0018] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure viewed from above;

[0019] Figure 3 for Figure 1 A schematic diagram of the structure of the middle limiting component from the left view.

[0020] Figure 4 This is a top view of the structure of Example 2;

[0021] Figure 5 for Figure 4 A schematic diagram of the structure of the grinding component from the left view.

[0022] Figure 6 for Figure 5 A schematic diagram of the structure of the middle limiting bolt viewed from the left.

[0023] In the diagram: 1-Workbench, 2-Fixed plate, 3-Screw rod, 4-Sliding rod, 5-First motor, 15-Placement platform, 6-Moving seat, 7-Gantry frame, 8-Rotating roller, 9-Grinding belt, 10-Second motor, 12-L-shaped rod, 13-First hydraulic rod, 14-First limiting plate, 16-Strip block, 17-U-shaped plate, 18-Second hydraulic rod, 19-Second limiting plate, 20-Slider, 21-Horizontal slide groove, 22-Positioning plate, 23-Limiting screw. Detailed Implementation

[0024] Example 1

[0025] A belt-type edge grinding device for polarizing film, such as Figure 1-2 As shown, it includes a worktable 1, a placement assembly and two grinding assemblies disposed at the top of the worktable 1, and a drive assembly for driving the two grinding assemblies to move towards or away from each other. Figure 1-2 As shown, the driving assembly includes two fixed plates 2 disposed at the top of the worktable 1, a lead screw 3 rotatably disposed between the two fixed plates 2, a slide rod 4 fixedly disposed between the two fixed plates 2 and parallel to the lead screw 3, and a first motor 5 disposed on the outer wall of one of the fixed plates 2 and fixedly connected to one end of the lead screw 3; the two grinding assemblies are respectively sleeved on the lead screw 3 and the slide rod 4, the grinding assembly and the lead screw 3 are threadedly connected, and the grinding assembly and the slide rod 4 are slidably connected; the placement assembly includes a placement platform 15 disposed at the top of the worktable 1 and located between the two fixed plates 2, and a limiting device disposed at the top of the worktable 1 for limiting the polarizer.

[0026] Furthermore, such as Figure 1-2 and Figure 5 As shown, the grinding assembly includes a movable base 6, a gantry frame 7 mounted on the movable base 6, two rotating rollers 8 rotatably mounted between the gantry frame 7 and the movable base 6, a grinding belt 9 commonly fitted onto the outer walls of the two rotating rollers 8, and a second motor 10 mounted at the top of the gantry frame 7 and rotatably connected to one of the rotating rollers 8; the movable base 6 is commonly fitted onto the lead screw 3 and the slide rod 4; the movable base 6 and the lead screw 3 are threadedly connected, and the movable base 6 and the slide rod 4 are slidably connected. Further, as... Figure 3 As shown, the extrusion device includes an L-shaped rod 12 disposed at the top of the worktable 1, a first hydraulic rod 13 disposed at the bottom of the L-shaped rod 12, and a first limiting plate 14 disposed at the bottom of the first hydraulic rod 13; the first limiting plate 14 is disposed directly above the placement table 15.

[0027] Working principle: The rectangular polarizer to be ground is placed in the center of the placement table 15, with the vertical planes containing the two edges to be ground perpendicular to the length direction of the lead screw 3. In practice, the size of the placement table 15 is relatively small so that the edges of the polarizer to be ground can be exposed (i.e., located outside the placement table 15). Then, the first hydraulic rod 13 is activated, causing the first limiting plate 14 to move downwards until it exerts a certain amount of pressure on the polarizer, thereby limiting the polarizer to the placement table 15. Then, the first motor 5 is activated, causing the two moving seats 6 to move towards each other on the lead screw 3 until they contact the edges of the polarizer to be ground. Then, the second motor 10 is turned on, causing the rotating roller 8 to rotate, which in turn causes the grinding belt 9 to rotate, thereby grinding the edges of the polarizer.

[0028] Through the synergistic effect of the above devices, the two edges of the polarizer can be polished simultaneously, thereby improving polishing efficiency.

[0029] Example 2

[0030] In Example 1, the polarizer is suitable for a size slightly larger than the placement stage 15. If the polarizer is significantly larger, a larger portion of it will protrude from the placement stage 15. This exposed portion is prone to bending, resulting in the polarizer not being horizontal. Consequently, the polished edge will not be perpendicular to the horizontal plane, leading to a misalignment between the polished sidewall and the upper and lower surfaces of the polarizer, resulting in serious polishing errors. Therefore, based on Example 1, if... Figure 4 and Figure 6 As shown, the belt grinding device further includes strip blocks 16 disposed at the top of the worktable 1 and located on both sides of the placement table 15, a U-shaped plate 17 disposed at the top of each strip block 16, a second hydraulic rod 18 disposed at the bottom of each U-shaped plate 17, and a second limiting plate 19 disposed at the bottom of each second hydraulic rod 18; the top of the strip blocks 16 is flush with the top of the placement table 15; the length direction of the two strip blocks 16 is perpendicular to the length direction of the lead screw 3, and both can move along the length direction of the lead screw 3. Further, as... Figure 4-6 As shown, each of the strip blocks 16 has a slider 20 at both ends at its bottom, and the top of the worktable 1 has two horizontal grooves 21 that slide in cooperation with the sliders 20. Further, as... Figure 4-6 As shown, a positioning plate 23 is provided at the top of the workbench 1 and located in the two horizontal slide grooves 21, and a limiting screw 23 adapted to the positioning plate 23 is provided on the slider 20.

[0031] In practice, first, move the two strip blocks 16 to contact the placement table 15. Then, place the polarizer in the center of the placement table 15 as described in Example 1, and use the limiting component to limit the polarizer to the placement table 15. Next, move the two strip blocks 16 back to back until they are almost close to the edges of the polarizer to be polished (even if the polishing edge of the polarizer is slightly exposed on the strip block 16). Then, rotate the limiting screw 23 to lock its end onto the positioning plate 23, thus preventing the two strip blocks 16 from moving back to back towards each other. Then, activate the second hydraulic rod 18 to move the second limiting plate 19 down until it exerts a certain amount of pressure on the polarizer. After that, polishing can be performed as described in Example 1.

[0032] When the two strip blocks 16 move toward each other or away from each other, the slider 20 slides within the horizontal groove 21.

[0033] Through the function described in Example 2, when the polarizer is placed in the center of the placement stage 15 and a large portion of the edge of the placement stage 15 is exposed, it can be ensured that the grinding part of the polarizer is always parallel to the horizontal plane, thereby ensuring that the grinding operation is carried out smoothly.

[0034] Furthermore, based on Embodiment 1 or Embodiment 2, each of the rotating rollers 8 is provided with a limiting groove (existing technology, not shown in the figure), and the abrasive belt 9 is disposed in the limiting groove to limit the abrasive belt 9.

Claims

1. A belt grinding device for a polarizer, comprising a worktable (1), a placement component and two grinding components disposed on the top of the worktable (1), and a driving component for driving the two grinding components to move toward each other or in opposite directions. Its features are, The drive assembly includes two fixed plates (2) disposed at the top of the worktable (1), a lead screw (3) rotatably disposed between the two fixed plates (2), a slide rod (4) fixedly disposed between the two fixed plates (2) and parallel to the lead screw (3), and a first motor (5) disposed on the outer wall of one of the fixed plates (2) and fixedly connected to one end of the lead screw (3); the two grinding assemblies are respectively sleeved on the lead screw (3) and the slide rod (4), the grinding assembly and the lead screw (3) are threadedly connected, and the grinding assembly and the slide rod (4) are slidably connected; The placement assembly includes a placement platform (15) disposed at the top of the worktable (1) and located between the two fixed plates (2), and a limiting device disposed at the top of the worktable (1) for limiting the polarizer.

2. The belt-type edge grinding device for polarizing film according to claim 1, characterized in that, The grinding assembly includes a movable seat (6), a gantry frame (7) mounted on the movable seat (6), two rotating rollers (8) rotatably mounted between the gantry frame (7) and the movable seat (6), a grinding belt (9) sleeved on the outer wall of the two rotating rollers (8), and a second motor (10) mounted on the top of the gantry frame (7) and rotatably connected to one of the rotating rollers (8); the movable seat (6) is sleeved on the lead screw (3) and the slide rod (4); the movable seat (6) and the lead screw (3) are threadedly connected, and the movable seat (6) and the slide rod (4) are slidably connected.

3. The belt-type edge grinding device for polarizing film according to claim 2, characterized in that, Each of the rotating rollers (8) is provided with a limiting groove (11), and the grinding belt (9) is disposed in the limiting groove.

4. The belt-type edge-grinding device for polarizing film according to claim 1, characterized in that, The extrusion device includes an L-shaped rod (12) disposed at the top of the workbench (1), a first hydraulic rod (13) disposed at the bottom of the L-shaped rod (12), and a first limiting plate (14) disposed at the bottom of the first hydraulic rod (13); the first limiting plate (14) is disposed directly above the placement platform (15).

5. The belt-type edge-grinding device for polarizing films according to claim 1, characterized in that, It also includes strip blocks (16) disposed at the top of the workbench (1) and located on both sides of the placement platform (15), a U-shaped plate (17) disposed at the top of each strip block (16), a second hydraulic rod (18) disposed at the bottom of each U-shaped plate (17), and a second limiting plate (19) disposed at the bottom of each second hydraulic rod (18); the top of the strip blocks (16) is flush with the top of the placement platform (15); the length direction of the two strip blocks (16) is perpendicular to the length direction of the lead screw (3), and both can move along the length direction of the lead screw (3).

6. The belt-type edge-grinding device for polarizing film according to claim 5, characterized in that, Each of the strip blocks (16) has a slider (20) at both ends of its bottom, and the top of the workbench (1) has two horizontal grooves (21) that slide in cooperation with the sliders (20).

7. The belt-type edge grinding device for polarizing film according to claim 6, characterized in that, A positioning plate (22) is provided at the top of the workbench (1) and within the two horizontal slides (21), and a limiting screw (23) adapted to the positioning plate (22) is provided on the slider (20).

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