Inspection device for diffusion plate

Abstract

The utility model discloses an inspection device for a diffusion plate, which comprises a pushing device, a pressing mechanism, a stock bin, an inspection mechanism and a conveying mechanism, through the cooperation of the pushing device and the pressing mechanism, the diffusion plate which does not need to be pushed out is lifted in the pushing process, the friction force in the pushing process is reduced, and the inspection efficiency is improved. The diffusion plates in the stock bin can be pushed out one by one to the detection mechanism to be detected, the diffusion plates detected by the detection mechanism are divided into qualified and unqualified parts, and the qualified and unqualified parts are conveyed to the outside by two conveying belts of the conveying mechanism respectively, so that manpower is saved, damage to the diffusion plates caused by workers taking is reduced, the yield and the detection efficiency are improved, and the production cost is reduced. And the production quality of products is improved.

Description

A testing device for diffusion plates Technical Field

[0001] This utility model relates to the field of diffusion plate testing technology, specifically to a testing device for diffusion plates. Background Technology

[0002] Diffuser plates are widely used in LCD displays, LED lighting and imaging display systems. Their main function is to fully scatter incident light to achieve a softer and more uniform illumination effect.

[0003] Traditional diffusion plate inspection requires a certain amount of manpower and resources to maximize the inspection effect and reduce defective products. The traditional inspection method requires workers to pick up the diffusion plate with both hands and then shine it through a preset light to inspect the diffusion effect. Relying on workers to handle the diffusion plate by hand can cause damage to the diffusion plate with fingernails or fingers, further reducing the production quality of the product. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides an inspection device for diffusion plates, which solves the aforementioned problems.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: an inspection device for a diffuser plate, comprising a pushing device, a pressing mechanism, a hopper, a detection mechanism, and a conveying mechanism. The right side of the pushing device is fixedly connected to the hopper. The pressing mechanism is installed inside the hopper, and the left side of the pressing mechanism extends out of the hopper. The right side of the hopper is provided with a detection mechanism, and the detection mechanism is provided with conveying mechanisms on both the front and rear sides inside.

[0008] Preferably, the pressing mechanism includes a cylinder seat, a pressing cylinder, a left pressing plate, a right pressing plate, a connecting plate, a push rod, a plate groove, and a right plate limiting block. The cylinder seat is installed in the middle left side of the hopper, and the pressing cylinder is installed in the middle left side of the cylinder seat. The movable end of the pressing cylinder passes through the cylinder seat and is fixedly connected to the middle left side of the left pressing plate. The left pressing plate and the right pressing plate are connected by a connecting plate, and a plate groove is provided on the rear side wall of the left and right pressing plates, into which the connecting plate can extend and move left and right. The left and right ends of the connecting plate are slidably connected to the inner wall of the plate groove of the left and right pressing plates, respectively. A right plate limiting block is provided on the right side wall of the right pressing plate, and the push rod is installed in the lower part of the cylinder seat.

[0009] Preferably, the pushing device includes a pushing device housing, a limiting groove, a pushing plate, a limiting shaft, a rack, and a gear. The inner front and rear side walls of the pushing device housing have limiting grooves. The inner left side of the pushing plate has a limiting shaft that passes through the pushing plate and extends into the limiting grooves at both ends. The bottom of the pushing plate has a rack, and the gear is installed on the bottom right side of the rack and meshes with it. The top right side of the pushing plate is inclined, and the top right side of the pushing plate contacts the bottom of the push rod.

[0010] Preferably, the hopper includes a hopper shell, a hopper bottom plate, a lifting groove, a first limiting post, a second limiting post, a hopper door, and a door hinge. The hopper shell is installed on the top of the hopper bottom plate. A lifting groove is provided in the middle of the left side wall of the hopper shell. A first limiting post is provided inside the lifting groove and is slidably connected to the cylinder seat. A second limiting post is provided in the middle of the right side wall of the hopper shell and is slidably connected to the right plate limiting block. A door hinge is provided at the front of the right side wall of the hopper shell, and the hopper door is rotatably connected to the hopper shell through the door hinge.

[0011] Preferably, the detection mechanism includes a detection mechanism housing, a detector, a detection platform, a supplementary light, a pulley assembly, a belt shaft, and a motor. The detector is installed on the top inner side of the detection mechanism housing, and the detection platform and supplementary light are installed on the bottom inner side of the detection mechanism housing. The supplementary light is installed in the middle inner side of the detection platform, and the supplementary light is vertically aligned with the detector. The pulley assembly is installed on the left and right sides of the top of the detection platform, and the pulley assembly is connected to the output shaft of the motor through the belt shaft.

[0012] Preferably, the bottom of the push rod is lower than the bottom of the left pressure plate and the right pressure plate, and the height difference is greater than the thickness of the push plate.

[0013] Preferably, the connecting plate is horizontally positioned and is always located within the plate groove.

[0014] Preferably, the bottom plate of the silo is provided with support rollers inside.

[0015] Preferably, the first limiting post and the second limiting post are arranged vertically.

[0016] (III) Beneficial Effects

[0017] This utility model provides an inspection device for diffuser plates. It has the following advantages: by incorporating a pushing device, a pressing mechanism, a hopper, an inspection mechanism, and a conveying mechanism, the pushing device and pressing mechanism work together to lift diffuser plates that do not need to be pushed out during the pushing process, reducing friction. This allows diffuser plates in the hopper to be pushed out one by one to the inspection mechanism for testing. The inspected diffuser plates are divided into qualified and unqualified categories, which are then transported to the outside by two conveyor belts of the conveying mechanism. This saves manpower, reduces damage to the diffuser plates caused by workers handling them, improves yield and inspection efficiency, and enhances product quality. Attached Figure Description

[0018] Figure 1 is a three-dimensional structural diagram of this utility model;

[0019] Figure 2 is a front view cross-sectional structural diagram of this utility model;

[0020] Figure 3 is a top view sectional view of the material pushing device in this utility model;

[0021] Figure 4 is a front view cross-sectional structural diagram of the material pushing device in this utility model;

[0022] Figure 5 is a cross-sectional structural diagram of the material pressing mechanism in this utility model;

[0023] Figure 6 is a schematic diagram of the material hopper structure of this utility model;

[0024] Figure 7 is a schematic diagram of the left-side structure of the material pressing mechanism in this utility model;

[0025] Figure 8 is a cross-sectional structural diagram of the detection mechanism in this utility model;

[0026] Figure 9 is a top view of the testing mechanism in this utility model.

[0027] In the diagram: Pushing device-1, Pressing mechanism-2, Hopper-3, Detection mechanism-4, Conveying mechanism-5, Material-6, Pushing device housing-11, Limiting groove-12, Pushing plate-13, Limiting shaft-14, Rack-15, Gear-16, Cylinder seat-21, Pressing cylinder-22, Left pressure plate-23, Right pressure plate-24, Connecting plate-25, Top rod-26, Plate groove-27, Right plate limiting block-28, Hopper housing-31, Hopper bottom plate-32, Lifting groove-33, Limiting post one-34, Limiting post two-35, Hopper door-36, Door hinge-37, Detection mechanism housing-41, Detector-42, Detection table-43, Supplementary light-44, Belt-45, Belt shaft-46, Motor-47, Motor-161, Roller-321. Detailed Implementation

[0028] 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.

[0029] Please refer to Figures 1-2. This utility model provides a technical solution for an inspection device for a diffuser plate: An inspection device for a diffuser plate includes a pushing device 1, a pressing mechanism 2, a hopper 3, a detection mechanism 4, and a conveying mechanism 5. The right side of the pushing device 1 is fixedly connected to the hopper 3. The pressing mechanism 2 is installed inside the hopper 3, and the left side of the pressing mechanism 2 extends out of the hopper 3. The detection mechanism 4 is provided on the right side of the hopper 3, and the conveying mechanism 5 is provided on both the front and rear sides inside the detection mechanism 4.

[0030] Please refer to Figures 3-4. This utility model provides a technical solution for an inspection device for a diffusion plate: An inspection device for a diffusion plate includes a pusher housing 11, a limiting groove 12, a pusher plate 13, a limiting shaft 14, a rack 15, and a gear 16. The pusher housing 11 has a limiting groove 12 on its inner front and rear side walls. The pusher plate 13 has a limiting shaft 14 on its inner left side. The limiting shaft 14 passes through the pusher plate 12, and both ends of the limiting shaft 14 extend into the limiting groove 12. The bottom of the pusher plate 13 has a rack 15. The gear 16 is installed on the bottom right side of the rack 15 and meshes with the rack 15. The top right side of the pusher plate 13 is inclined, and the top right side of the pusher plate 13 contacts the bottom of the pusher rod 26.

[0031] Gear 16 is driven to rotate by motor 161.

[0032] Please refer to Figures 5-6. This utility model provides a technical solution for an inspection device for a diffuser plate: An inspection device for a diffuser plate includes a hopper shell 31, a hopper bottom plate 32, a lifting groove 33, a first limiting post 34, a second limiting post 35, a hopper door 36, and a door hinge 37. The hopper shell 31 is installed on the top of the hopper bottom plate 32. The lifting groove 33 is provided in the middle of the left side wall of the hopper shell 31. The first limiting post 34 is provided inside the lifting groove 33. The first limiting post 34 is slidably connected to the cylinder seat 21. The second limiting post 35 is provided in the middle of the right side wall of the hopper shell 31. The second limiting post 35 is slidably connected to the right plate limiting block 28. The door hinge 37 is provided at the front of the right side wall of the hopper shell 31. The hopper door 36 is rotatably connected to the hopper shell 31 through the door hinge 37.

[0033] Please refer to Figures 5-7. This utility model provides a technical solution for an inspection device for a diffuser plate: An inspection device for a diffuser plate includes a cylinder seat 21, a pressing cylinder 22, a left pressing plate 23, a right pressing plate 24, a connecting plate 25, a push rod 26, a plate groove 27, and a right plate limiting block 28. The cylinder seat 21 is installed in the middle left side of the hopper 3, and the pressing cylinder 22 is installed in the middle left side of the cylinder seat 21. The movable end of the pressing cylinder 22 passes through the cylinder seat and the left pressing plate. The left side of the plate 23 is fixedly connected to the middle part. The left pressure plate 23 and the right pressure plate 24 are connected by a connecting plate 25. The left pressure plate 23 and the right pressure plate 24 are provided with a plate groove 27 on the rear side wall, into which the connecting plate 25 can extend and move left and right. The left and right ends of the connecting plate 25 are slidably connected to the inner wall of the plate groove 27 of the left pressure plate 23 and the right pressure plate 24, respectively. The right side wall of the right pressure plate 24 is provided with a right plate limiting block 28. The push rod 26 is installed at the bottom of the cylinder seat 21.

[0034] Please refer to Figures 8-9. This utility model provides a technical solution for an inspection device for diffuser plates: An inspection device for diffuser plates includes a detection mechanism housing 41, a detector 42, a detection platform 43, a supplementary light 44, a pulley assembly 45, a belt shaft 46, and a motor 47. The detector 42 is installed on the top inner side of the detection mechanism housing 41. The detector can identify defects on the diffuser plate and perform screening. The detection platform 43 and the supplementary light 44 are installed on the bottom inner side of the detection mechanism housing 41. The supplementary light 44 is installed in the middle inner side of the detection platform 43, and the supplementary light 44 is vertically aligned with the detector 42. The pulley assembly 45 is installed on the left and right sides of the top of the detection platform 43. The pulley assembly 45 is connected to the output shaft of the motor 47 through the belt shaft 46.

[0035] The detector 42 is a visual inspection system, which is a mature existing technology. This system, in conjunction with the supplementary light 44, performs image comparison to inspect the diffuser plate and identify and screen out defects on the diffuser plate.

[0036] During operation, the worker opens the hopper door 36, loads the diffuser plate to be tested into the hopper 3, closes the door 36, starts the machine, and the pressing cylinder 22 pushes the left pressing plate 23 to the right until the diffuser plate is pressed between the left pressing plate 23 and the right pressing plate 24. Then, the gear 16 starts, and the rotation of the gear 16, through meshing with the rack 15, drives the rack 15 and the pusher plate 13 to the right, causing the pusher plate 13 to move to the right. The limiting shaft 14 moves to the right along the limiting groove 12, and the inclined surface at the top right side of the pusher plate 13 pushes the top rod 26 upward, causing the cylinder seat 21 to move upward along the first limiting post 34 in the lifting groove 33, thereby causing the left pressing plate 23 to move upward. The connecting plate 25 in the plate groove 27 drives the right pressing plate 24 to move upward, and the right plate limiting block 28 moves upward along the second limiting post 35, pushing the bottom plate 32 of the hopper upward. The second and subsequent diffuser plates rise away from the top of the first diffuser plate, reducing the friction when pushing the first diffuser plate. The pusher plate 13 moves into the hopper 3 and pushes the first diffuser plate at the top of the support roller 321 in the hopper bottom plate 32 onto the detection table 43 in the detection mechanism 4. The support roller 321 rolls to reduce the friction when pushing out, reducing the wear on the diffuser plate. Then, the gear 16 drives the pusher plate 13 to move to the left and retract. When the pusher plate 13 retracts to the point where the top rod 26 descends, the cylinder seat 21 moves downward along the limit post 34 in the lifting groove 33, causing the diffuser plate in the hopper 3 to descend. When the pusher plate 13 retracts to the position, the pressing cylinder 22 resets. The diffuser plate in the hopper 3 falls to the top of the support roller 321 in the hopper bottom plate 32 due to gravity, and waits for the detection mechanism 4 to detect it before pushing it again.

[0037] The diffuser plate arrives at the testing table 43 of the testing mechanism 4. The detector 42, together with the supplementary light 44, tests the diffuser plate. The tested diffuser plates are divided into qualified and unqualified. The qualified diffuser plates are conveyed to the conveyor belt at the rear of the conveying mechanism 5 by the motor 47 driving the belts 45 at both ends of the belt shaft 46. The unqualified diffuser plates are conveyed to the conveyor belt at the front of the conveying mechanism 5. The conveyor belt conveys the tested diffuser plates to the outside.

[0038] The control method of this utility model is to control the device by manually starting and stopping the switch. The wiring diagram of the power element and the supply of power are common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail.

[0039] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0040] 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 testing device for a diffusion plate, characterized in that: The device includes a pushing device (1), a pressing mechanism (2), a hopper (3), a detection mechanism (4), and a conveying mechanism (5). The right side of the pushing device (1) is fixedly connected to the hopper (3). The pressing mechanism (2) is installed inside the hopper (3), and the left side of the pressing mechanism (2) extends out of the hopper (3). The right side of the hopper (3) is provided with a detection mechanism (4), and both the front and rear sides of the detection mechanism (4) are provided with conveying mechanisms (5). The pressing mechanism (2) includes a cylinder seat (21), a pressing cylinder (22), a left pressing plate (23), a right pressing plate (24), a connecting plate (25), a top rod (26), a plate groove (27), and a right plate limiting block (28). The cylinder seat (21) is installed in the hopper (3). The pressing cylinder (22) is installed on the left side of the cylinder seat (21). The movable end of the pressing cylinder (22) passes through the cylinder seat and is fixedly connected to the left side of the left pressure plate (23). The left pressure plate (23) and the right pressure plate (24) are connected by a connecting plate (25). The rear side walls of the left pressure plate (23) and the right pressure plate (24) are provided with a plate groove (27) into which the connecting plate (25) can extend and move left and right. The left and right ends of the connecting plate (25) are slidably connected to the inner walls of the plate groove (27) of the left pressure plate (23) and the right pressure plate (24) respectively. The right side wall of the right pressure plate (24) is provided with a right plate limiting block (28). The top rod (26) is installed at the bottom of the cylinder seat (21).

2. The inspection device for a diffusion plate according to claim 1, characterized in that: The pushing device (1) includes a pushing device housing (11), a limiting groove (12), a pushing plate (13), a limiting shaft (14), a rack (15), and a gear (16). The pushing device housing (11) has a limiting groove (12) on its inner front and rear side walls. The pushing plate (13) has a limiting shaft (14) on its inner left side. The limiting shaft (14) passes through the pushing plate (13), and both ends of the limiting shaft (14) extend into the limiting groove (12). The bottom of the pushing plate (13) has a rack (15). The gear (16) is installed on the bottom right side of the rack (15) and meshes with the rack (15). The top right side of the pushing plate (13) is inclined, and the top right side of the pushing plate (13) contacts the bottom of the push rod (26).

3. The inspection device for a diffusion plate according to claim 1, characterized in that: The hopper (3) includes a hopper shell (31), a hopper bottom plate (32), a lifting groove (33), a first limiting post (34), a second limiting post (35), a hopper door (36), and a door hinge (37). The hopper shell (31) is installed on the top of the hopper bottom plate (32). The lifting groove (33) is provided in the middle of the left side wall of the hopper shell (31). The first limiting post (34) is provided inside the lifting groove (33). The first limiting post (34) is slidably connected to the cylinder seat (21). The second limiting post (35) is provided in the middle of the right side wall of the hopper shell (31). The second limiting post (35) is slidably connected to the right plate limiting block (28). The door hinge (37) is provided at the front of the right side wall of the hopper shell (31). The hopper door (36) is rotatably connected to the hopper shell (31) through the door hinge (37).

4. The inspection device for a diffusion plate according to claim 1, characterized in that: The detection mechanism (4) includes a detection mechanism housing (41), a detector (42), a detection platform (43), a supplementary light (44), a pulley assembly (45), a belt shaft (46), and a motor (47). The detector (42) is installed on the top inner side of the detection mechanism housing (41), and the detection platform (43) and the supplementary light (44) are installed on the bottom inner side of the detection mechanism housing (41). The supplementary light (44) is installed in the middle inner side of the detection platform (43), and the supplementary light (44) is vertically aligned with the detector (42). The pulley assembly (45) is installed on the left and right sides of the top of the detection platform (43), and the pulley assembly (45) is connected to the output shaft of the motor (47) through the belt shaft (46).

5. The inspection device for a diffusion plate according to claim 1, characterized in that: The bottom of the push rod (26) is lower than the bottom of the left pressure plate (23) and the right pressure plate (24), and the height difference is greater than the thickness of the push plate (13).

6. The inspection device for a diffusion plate according to claim 1, characterized in that: The connecting plate (25) is horizontally positioned and is always located within the plate groove (27).

7. The inspection device for a diffusion plate according to claim 3, characterized in that: The bottom plate (32) of the silo is provided with a support roller (321).

8. The inspection device for a diffusion plate according to claim 3, characterized in that: The first limiting post (34) and the second limiting post (35) are arranged vertically.

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