Polarizer inspection workbench

Abstract

The utility model belongs to the technical field of polaroid inspection, and discloses a polaroid inspection workbench which comprises a conveying frame, a feeding frame is fixedly installed on the top of the conveying frame, a feeding assembly is movably installed in the feeding frame, the front side and the rear side of the feeding assembly are each provided with a guide sliding groove, and the front side and the rear side of the feeding assembly are each provided with a guide sliding groove. The two ends of the feeding assembly are slidably clamped into the front guide sliding groove and the rear guide sliding groove, the outer surfaces of the front end and the rear end of the feeding assembly are each movably sleeved with a linkage assembly, and the front side and the rear side of the feeding frame are each fixedly provided with a driving motor. Under the cooperation of the linkage assembly and the driving motor, the feeding assembly moves along the guide sliding groove, so that the lower end of the feeding assembly vertically moves downwards to the top of a polaroid stack or drives the adsorbed polaroid stack to horizontally move to the position above a conveying belt, the driving direction of the adsorption transfer mechanism is effectively reduced, a power system is simplified, and the production efficiency is improved. And the equipment cost and the daily maintenance difficulty are reduced.

Description

Technical Field

[0001] This utility model belongs to the field of polarizer inspection technology, and more specifically, it relates to a polarizer inspection workbench. Background Technology

[0002] The full name of a polarizer is polarizing film. The imaging of liquid crystal displays (LCDs) must rely on polarized light. All liquid crystals have two polarizers, one in front and one behind, closely attached to the liquid crystal glass to form a liquid crystal sheet with a total thickness of about 1 mm. The polarizer is frosted to dissipate surface reflections and scatter light to increase the viewing angle of the liquid crystal display. After the initial production is completed, the polarizer needs to be inspected on an inspection workbench to check for defects such as bumps, bubbles, and reverse orientation.

[0003] The existing inspection workbench is equipped with a suction cup assembly to transfer stacked polarizers one by one onto the conveyor belt. However, the existing suction cup mechanism requires a moving drive mechanism in at least two directions to ensure that the vertically moving suction cup can drive the polarizers it holds to move laterally onto the conveyor belt. This increases the structure of the suction cup transfer mechanism and the workload of daily maintenance and repair. Therefore, it is necessary to develop a polarizer inspection workbench to solve the shortcomings of the existing technology. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a polarizer inspection workbench.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a polarizer inspection workbench, including a conveyor frame, a loading rack fixedly installed on the top of the conveyor frame, a loading assembly movably installed inside the loading rack, a guide groove provided on both the front and rear sides of the loading assembly, both ends of the loading assembly slidably engaging with the interior of the two guide grooves, a linkage assembly movably sleeved on the outer surfaces of both the front and rear ends of the loading assembly, a drive motor fixedly installed on both the front and rear sides of the loading rack, the output shafts of the drive motors extending into the interior of the loading rack and respectively fixedly connected to the back sides of the lower ends of the two linkage assemblies;

[0006] The lower end of the guide slide is vertical, the upper end of the guide slide is horizontal, the middle part of the guide slide is arc-shaped, and the circular arc of the middle part of the guide slide is located on the extension line of the output shaft of the drive motor.

[0007] The top of the conveyor frame is provided with a feeding trough that runs through both ends. One end of the feeding trough is where a stack of polarizing film is placed, located directly below the vertical end of the guide chute. The other end of the feeding trough is movably installed with a conveyor belt, and the end of the conveyor belt near the stack of polarizing film extends to below the horizontal end of the guide chute.

[0008] As a preferred embodiment of the present invention, the feeding assembly includes a feeding plate movably installed inside the feeding rack. The bottom of the feeding plate is fixedly connected to a plurality of evenly distributed feeding suction cups. The feeding plate has a communicating cavity inside, and the bottom of the communicating cavity is interconnected with the plurality of feeding suction cups.

[0009] As a preferred technical solution of this utility model, a positioning magnetic block is fixedly installed on the top of the outer surface of the feeding plate. The center of gravity of the positioning magnetic block is located directly below the linkage rod. The upper end of the feeding plate is fixedly sleeved with the linkage rod. The front and rear ends of the linkage rod are slidably sleeved in the interior of the front and rear guide grooves through bearings.

[0010] As a preferred embodiment of this utility model, a first limiting baffle is fixedly installed at the end of the feeding rack near the polarizing film stack, and a positioning plate is fixedly installed at the end of the feeding rack away from the polarizing film stack. The first limiting baffle is parallel to the vertical end of the lower end of the guide slide, and the positioning plate is located on the extension line of the horizontal end of the upper end of the guide slide. The distance between the first limiting baffle and the lower end of the guide slide is adapted to the distance between the side of the positioning magnetic block and the middle of the feeding plate.

[0011] As a preferred embodiment of this utility model, a second limiting baffle is movably installed inside the feeding rack. The two ends of the second limiting baffle are slidably engaged with the interior of the front and rear guide grooves. A positioning spring is connected between the positioning plate and the second limiting baffle.

[0012] As a preferred technical solution of this utility model, an air pump is fixedly installed on the top of the positioning magnetic block, and a connecting pipe is fixedly connected to the output end of the air pump. The lower end of the connecting pipe is fixedly connected to the feeding plate and is connected to several feeding suction cups through the connecting cavity.

[0013] As a preferred technical solution of this utility model, the linkage component includes a drive sleeve fixedly connected to the output shaft of the drive motor, a linkage sleeve is provided above the drive sleeve, a linkage hole is provided at the upper end of the linkage sleeve, and the linkage sleeve is rotatably sleeved on the outer surface of the linkage rod through the linkage hole.

[0014] Both the linkage sleeve and the drive sleeve have a limiting cavity inside. A limiting block is slidably engaged inside each of the two limiting cavities. A connecting rod is fixedly connected between the two limiting blocks. The connecting rod is slidably connected to the opposite ends of the linkage sleeve and the drive sleeve.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] Due to the design of the guide chute, the feeding assembly can move along the guide chute in cooperation with the linkage component and the drive motor. This allows the lower end of the feeding assembly to move vertically down to the top of the polarizing film stack, while also driving the adsorbed polarizing film stack to move horizontally over the conveyor belt. This effectively reduces the driving direction of the adsorption and transfer mechanism, thereby simplifying the power system and reducing equipment costs and daily maintenance difficulties. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is the right view of the present invention;

[0019] Figure 3 This is a front sectional view of the feeding rack and its internal structure of this utility model;

[0020] Figure 4 This is a cross-sectional schematic diagram of the linkage component of this utility model.

[0021] In the diagram: 1. Conveyor frame; 2. Feeding frame; 3. Feeding assembly; 31. Feeding plate; 32. Positioning magnetic block; 33. Linkage rod; 34. Feeding suction cup; 35. Connecting cavity; 4. Guide chute; 5. Linkage assembly; 51. Linkage sleeve; 52. Drive sleeve; 53. Linkage hole; 54. Limiting cavity; 55. Connecting rod; 56. Limiting block; 6. Drive motor; 7. Feeding trough; 8. Polarizing film stack; 9. Conveyor belt; 10. First limiting baffle; 11. Positioning plate; 12. Second limiting baffle; 13. Positioning spring; 14. Air pump; 15. Connecting pipe. Detailed Implementation

[0022] 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.

[0023] like Figures 1 to 4As shown, this utility model provides a polarizer inspection workbench, including a conveyor frame 1, a loading frame 2 fixedly installed on the top of the conveyor frame 1, a loading assembly 3 movably installed inside the loading frame 2, a guide groove 4 opened on both the front and rear sides of the loading assembly 3, the two ends of the loading assembly 3 slidably engaged in the interior of the two guide grooves 4, a linkage assembly 5 movably sleeved on the outer surface of both the front and rear ends of the loading assembly 3, a drive motor 6 fixedly installed on both the front and rear sides of the loading frame 2, the output shaft of the drive motor 6 extending into the interior of the loading frame 2, and respectively fixedly connected to the back side of the lower end of the two linkage assemblies 5;

[0024] The lower end of the guide slide 4 is vertical, the upper end of the guide slide 4 is horizontal, the middle part of the guide slide 4 is arc-shaped, and the arc-shaped circle in the middle part of the guide slide 4 is located on the extension line of the output shaft of the drive motor 6.

[0025] The top of the conveyor frame 1 is provided with a feeding trough 7 that runs through both ends. One end of the feeding trough 7 is where a stack of polarizing film 8 is placed, located directly below the vertical end of the guide slide 4. The other end of the feeding trough 7 is movably mounted with a conveyor belt 9. The end of the conveyor belt 9 near the stack of polarizing film 8 extends to below the horizontal end of the guide slide 4. Due to the setting of the guide slide 4, the feeding component 3 can move along the guide slide 4 with the cooperation of the linkage component 5 and the drive motor 6, so that the lower end of the feeding component 3 can move vertically down to the top of the stack of polarizing film 8. At the same time, it can also drive the adsorbed stack of polarizing film 8 to move horizontally to the top of the conveyor belt 9, effectively reducing the driving direction of the adsorption and transfer mechanism, thereby simplifying the power system and reducing equipment costs and daily maintenance difficulties.

[0026] The feeding assembly 3 includes a feeding plate 31 movably installed inside the feeding rack 2. The bottom of the feeding plate 31 is fixedly connected to a plurality of evenly distributed feeding suction cups 34. The feeding plate 31 has a connecting cavity 35 inside, and the bottom of the connecting cavity 35 is connected to the plurality of feeding suction cups 34. Due to the setting of the connecting cavity 35, the plurality of feeding suction cups 34 can be connected to the connecting cavity 35 at the same time. Thus, with the cooperation of the air pump 14 and the connecting pipe 15, the plurality of air pumps 14 are simultaneously in a negative pressure state, while ensuring that the pressure in the plurality of air pumps 14 remains consistent.

[0027] The top of the outer surface of the feeding plate 31 is fixedly fitted with a positioning magnetic block 32. The center of gravity of the positioning magnetic block 32 is located directly below the linkage rod 33. The upper end of the feeding plate 31 is fixedly sleeved with the linkage rod 33. The front and rear ends of the linkage rod 33 are slidably sleeved inside the front and rear guide grooves 4 through bearings. Due to the setting of the positioning magnetic block 32, with the cooperation of the first limiting baffle 10 and the second limiting baffle 12, after moving to the vertical or horizontal end, the feeding plate 31 can be kept in a stable vertical state, thereby ensuring that its bottom feeding suction cup 34 can smoothly press the top of the polarizer stack 8, and at the same time smoothly release the adsorbed polarizer to the top of the conveyor belt 9.

[0028] The first limiting baffle 10 is fixedly installed at the end of the feeding rack 2 near the polarizer stack 8, and the positioning plate 11 is fixedly installed at the end of the feeding rack 2 away from the polarizer stack 8. The first limiting baffle 10 is parallel to the vertical end of the lower end of the guide slide 4, and the positioning plate 11 is located on the extension line of the horizontal end of the upper end of the guide slide 4. The distance between the first limiting baffle 10 and the lower end of the guide slide 4 is adapted to the distance between the side of the positioning magnetic block 32 and the middle of the feeding plate 31.

[0029] The loading rack 2 is equipped with a second limiting baffle 12, the two ends of which are slidably engaged with the interior of the front and rear guide grooves 4. A positioning spring 13 is connected between the positioning plate 11 and the second limiting baffle 12. Due to the setting of the positioning spring 13, under its elastic restoring force, it can ensure that the loading plate 31 can be kept vertical by the positioning magnetic block 32 through the second limiting baffle 12, while not blocking the loading component 3 from moving laterally along the horizontal end of the upper end of the guide groove 4 along with the linkage component 5 and the drive motor 6.

[0030] Among them, an air pump 14 is fixedly installed on the top of the positioning magnetic block 32, and a connecting pipe 15 is fixedly connected to the output end of the air pump 14. The lower end of the connecting pipe 15 is fixedly connected to the feeding plate 31 and is connected to several feeding suction cups 34 through the connecting cavity 35.

[0031] The linkage component 5 includes a drive sleeve 52 fixedly connected to the output shaft of the drive motor 6. A linkage sleeve 51 is provided above the drive sleeve 52. A linkage hole 53 is provided at the upper end of the linkage sleeve 51. The linkage sleeve 51 is rotatably sleeved on the outer surface of the linkage rod 33 through the linkage hole 53.

[0032] Both the linkage sleeve 51 and the drive sleeve 52 have a limiting cavity 54 inside. A limiting block 56 is slidably engaged inside each of the two limiting cavities 54. A connecting rod 55 is fixedly connected between the two limiting blocks 56. The connecting rod 55 is slidably connected to the opposite ends of the linkage sleeve 51 and the drive sleeve 52. Due to the setting of the limiting cavity 54, the connecting rod 55 and the limiting block 56, the linkage assembly 5 can extend and retract smoothly, so that it can swing with the drive motor 6, thereby driving the linkage rod 33 to move along the guide slide 4, thereby realizing the transfer of the polarizer in different directions.

[0033] Working principle and usage process of this utility model:

[0034] As shown in the figure, the polarizer stack 8 is placed in the feeding trough 7, directly below the vertical end of the guide slide 4. The equipment is turned on, and the drive motor 6 reciprocates. With the extension and retraction of the linkage component 5, the linkage rod 33 drives the feeding plate 31 to move along the path of the guide slide 4. This drives the positioning magnetic block 32 located outside the linkage rod 33 to follow it along the guide slide 4. When the bottom of the feeding plate 31 moves to the vertical end of the guide slide 4 with the linkage rod 33, it is first attracted to the first limit baffle 10 by the attraction of the positioning magnetic block 32. This ensures that the feeding plate 31 moves vertically downward smoothly with the linkage rod 33, so that the feeding suction cups 34 at the bottom of the feeding plate 31 are smoothly pressed against the top of the polarizer stack 8. At this time, the air pump 14 is triggered to suck out the air in the feeding suction cups 34 through the connecting pipe 15 and the connecting cavity 35, so that a negative pressure is formed in the feeding suction cups 34 to attract a polarizer at the top of the polarizer stack 8.

[0035] When the lower end of the feeding plate 31 moves to the horizontal end of the guide chute 4 following the linkage rod 33, it is firmly attracted to the surface of the second limiting baffle 12 under the magnetic attraction of the positioning magnetic block 32, so that the feeding plate 31 is in a stable vertical state. With the continuous drive of the drive motor 6 and the linkage component 5, the feeding component 3 can smoothly push the second limiting baffle 12 and, under the restriction of the positioning plate 11, compress the positioning spring 13 to increase its elastic restoring force. At the same time, the feeding component 3 drives the polarizer adsorbed at its bottom to move smoothly to the top of the conveyor belt 9. At this time, the air pump 14 discharges air, so that the negative pressure in the feeding suction cup 34 is reduced, thereby releasing the adsorbed polarizer to the top of the conveyor belt 9.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A polarizing sheet inspection worktable comprising a conveying rack (1), characterized in that: A feeding rack (2) is fixedly installed on the top of the conveyor frame (1). A feeding assembly (3) is movably installed inside the feeding rack (2). A guide groove (4) is opened on both the front and rear sides of the feeding assembly (3). The two ends of the feeding assembly (3) are slidably engaged with the interior of the two guide grooves (4). A linkage assembly (5) is movably sleeved on the outer surface of both the front and rear ends of the feeding assembly (3). A drive motor (6) is fixedly installed on both the front and rear sides of the feeding rack (2). The output shaft of the drive motor (6) extends into the interior of the feeding rack (2) and is fixedly connected to the opposite back of the two linkage assemblies (5) at the bottom. The lower end of the guide groove (4) is vertical, the upper end of the guide groove (4) is horizontal, the middle part of the guide groove (4) is arc-shaped, and the arc-shaped circle in the middle part of the guide groove (4) is located on the extension line of the output shaft of the drive motor (6). The top of the conveyor frame (1) is provided with a feeding trough (7) that runs through both ends. One end of the feeding trough (7) is where a stack of polarizing film (8) is placed, located directly below the vertical end of the guide slide (4). The other end of the feeding trough (7) is movably installed with a conveyor belt (9). The end of the conveyor belt (9) near the stack of polarizing film (8) extends to below the horizontal end of the guide slide (4).

2. The polarizing sheet inspection worktable according to claim 1, wherein: The feeding assembly (3) includes a feeding plate (31) movably installed inside the feeding rack (2). The bottom of the feeding plate (31) is fixedly connected to a plurality of evenly distributed feeding suction cups (34). The feeding plate (31) has a communicating cavity (35) inside, and the bottom of the communicating cavity (35) is interconnected with the plurality of feeding suction cups (34).

3. A polarizer inspection stage according to claim 2, wherein: The top of the outer surface of the feeding plate (31) is fixedly fitted with a positioning magnetic block (32). The center of gravity of the positioning magnetic block (32) is located directly below the linkage rod (33). The upper end of the feeding plate (31) is fixedly sleeved with the linkage rod (33). The front and rear ends of the linkage rod (33) are slidably sleeved in the interior of the front and rear guide grooves (4) through bearings.

4. The polarizer inspection stage of claim 1, wherein: A first limiting baffle (10) is fixedly installed at one end of the feeding rack (2) near the polarizer stack (8), and a positioning plate (11) is fixedly installed at the other end of the feeding rack (2) away from the polarizer stack (8). The first limiting baffle (10) is parallel to the vertical end of the lower end of the guide slide (4), and the positioning plate (11) is located on the extension line of the horizontal end of the upper end of the guide slide (4). The distance between the first limiting baffle (10) and the lower end of the guide slide (4) is adapted to the distance between the side of the positioning magnetic block (32) and the middle of the feeding plate (31).

5. A polarizer inspection stage according to claim 4, wherein: The loading rack (2) is movably installed with a second limiting baffle (12). The two ends of the second limiting baffle (12) are slidably engaged with the interior of the front and rear guide grooves (4). A positioning spring (13) is connected between the positioning plate (11) and the second limiting baffle (12).

6. The polarizer inspection stage of claim 3, wherein: An air pump (14) is fixedly installed on the top of the positioning magnetic block (32). The output end of the air pump (14) is fixedly connected to a connecting pipe (15). The lower end of the connecting pipe (15) is fixedly connected to the feeding plate (31) and is connected to several feeding suction cups (34) through the connecting cavity (35).

7. The polarizer inspection station of claim 1, wherein: The linkage component (5) includes a drive sleeve (52) fixedly connected to the output shaft of the drive motor (6). A linkage sleeve (51) is provided above the drive sleeve (52). A linkage hole (53) is provided at the upper end of the linkage sleeve (51). The linkage sleeve (51) is rotatably sleeved on the outer surface of the linkage rod (33) through the linkage hole (53). Both the linkage sleeve (51) and the drive sleeve (52) have a limiting cavity (54) inside. A limiting block (56) is slidably engaged inside each of the two limiting cavities (54). A connecting rod (55) is fixedly connected between the two limiting blocks (56). The connecting rod (55) is slidably connected to the opposite ends of the linkage sleeve (51) and the drive sleeve (52).

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