Filtering device for optical glue

Abstract

The utility model discloses a kind of filtering devices for optical adhesive, including jar body, the top of jar body is provided with top cover, pump body is fixed on the lateral wall of jar body, the injection tube is fixedly connected in the discharge port of pump body, and the other end of injection tube extends to the inside of jar body by passing through the lateral wall of jar body, the bottom of the inner lateral wall of jar body is fixed with support ring, and the upper surface of support ring is attached with filter assembly.The utility model is provided with jar body, top cover, pump body, filter assembly, motor, air pump and electric telescopic rod, by pump body, the optical adhesive raw material to be filtered is injected into the inside of jar body, so as to filter optical adhesive using filter assembly, during this period, air is injected into the top end of the inside of jar body using air pump, increase the pressure in the inside of jar body, improve the efficiency of optical adhesive through filter screen, thereby improve the filtering efficiency of optical adhesive;By electric telescopic rod driving top cover to move upwards, the filter assembly in the inside can be taken out to clean or replace.

Description

Technical Field

[0001] This utility model relates to the field of optical adhesive production technology, and in particular to a filter device for optical adhesives. Background Technology

[0002] Optical adhesive filtration is a key process for purifying optical adhesives using specific techniques. It aims to remove impurities, bubbles, or unreacted monomers to ensure excellent optical performance and bonding reliability. This technology is widely used in display bonding, lens assembly, and touchscreen manufacturing, directly affecting the product's light transmittance, brightness, and long-term stability. Common filtration methods include mechanical filtration, vacuum degassing, centrifugal filtration, and molecular sieve adsorption. Highly efficient optical adhesive filtration not only improves the uniformity and flowability of the adhesive but also prevents bubbles and impurities from appearing in subsequent processes, thereby significantly improving the yield and durability of optical devices.

[0003] A search revealed a patent with publication number CN220736655U, which discloses a filtering device for optical adhesives. This device uses a filter screen to remove insoluble solid particles from the optical adhesive, improving its purity and stability. However, due to the high viscosity of the optical adhesive, the speed at which it passes through the filter screen is relatively slow. Furthermore, as filtration continues, microparticles in the adhesive clog the filter screen, further slowing the filtration speed and affecting processing efficiency. Therefore, further improvements are needed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a filter device for optical adhesives.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a filter device for optical adhesives, comprising a tank, a top cover at the top of the tank, a pump body fixed to the outer wall of the tank, a feeding pipe fixedly connected to the outlet of the pump body, and the other end of the feeding pipe extending through the side wall of the tank into the interior of the tank, a support ring fixed to the bottom of the inner side wall of the tank, a filter assembly fitted to the upper surface of the support ring, the filter assembly including a frame plate located on the upper surface of the support ring, a filter screen fixed inside the frame plate, a vertical shaft rotatably connected to the middle of the upper surface of the frame plate via a bearing, a scraper fixed to the bottom surface of the vertical shaft, the scraper being located on the upper surface of the filter screen, a motor for driving the vertical shaft to rotate installed on the upper surface of the top cover, an air pump, a pressure gauge and a controller also installed on the upper surface of the top cover, a discharge pipe fixedly connected to the bottom of the tank, an electric telescopic rod fixedly installed on the outer wall of the tank, and the top telescopic end of the electric telescopic rod fixedly connected to the lower surface of the top cover.

[0006] Furthermore, an annular groove is provided on the outer side of the frame plate, and a sealing ring is engaged inside the annular groove, the sealing ring being fitted to the inner wall of the tank.

[0007] Furthermore, a drive shaft is fixedly connected to the bottom output end of the motor, and a contact plate is fixedly connected to the bottom end of the drive shaft and the top end of the vertical shaft. The two contact plates are in contact with each other, and a rubber pad is fixedly connected to the side where the two contact plates are in contact.

[0008] Furthermore, a locking block is fixed on the upper surface of the support ring, and a locking groove is opened on the lower surface of the frame plate, into which the locking block is engaged.

[0009] Furthermore, a sealing strip is fixed to the top of the side wall of the tank.

[0010] Furthermore, the air pump outlet is fixedly connected to an air injection pipe, which extends through the top cover into the tank, and a one-way valve is fixed in the middle of the air injection pipe.

[0011] Furthermore, both the air pump and the pressure gauge are electrically connected to the controller.

[0012] The beneficial effects of this utility model are:

[0013] 1. In use, this utility model is a filter device for optical adhesives, comprising a tank, a top cover, a pump, a filter assembly, a motor, an air pump, and an electric telescopic rod. The optical adhesive raw material to be filtered is injected into the tank through the pump, and the filter assembly filters the optical adhesive. During this process, air is injected into the top of the tank through the air pump to increase the internal pressure of the tank and improve the efficiency of the optical adhesive passing through the filter screen, thereby improving the filtration efficiency of the optical adhesive. The top cover is moved upward by the electric telescopic rod, allowing the internal filter assembly to be removed for cleaning or replacement.

[0014] 2. When in use, this utility model is a filter device for optical adhesives, which is equipped with a filter assembly. The filter assembly includes a frame plate, a filter screen, a vertical shaft, and a scraper. During the filtration process, the vertical shaft and the scraper are rotated by a motor. The scraper scrapes away the particulate impurities stuck on the surface of the filter screen, thus preventing the particulate impurities from clogging the filter screen. Attached Figure Description

[0015] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 : Overall sectional view of this utility model;

[0017] Figure 2 Partial perspective view of this utility model;

[0018] Figure 3 The present utility model Figure 1 Enlarged view of point A in the middle;

[0019] Figure 4 The present utility model Figure 1 Enlarged view of section B in the middle.

[0020] The attached figures are labeled as follows:

[0021] 1. Tank body; 2. Top cover; 3. Pump body; 31. Injection pipe; 4. Support ring; 41. Clamping block; 5. Filter assembly; 51. Frame plate; 52. Filter screen; 53. Vertical shaft; 54. Scraper; 55. Contact plate; 56. Sealing ring; 57. Slot; 6. Motor; 7. Air pump; 8. Pressure gauge; 9. Controller; 10. Discharge pipe; 11. Electric telescopic rod; 12. Sealing strip. 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figures 1-4 As shown, a filtering device for optical adhesives is disclosed, comprising a tank 1, a top cover 2 at the top of the tank 1, a pump body 3 fixed to the outer wall of the tank 1, a filling pipe 31 fixedly connected to the outlet of the pump body 3, and the other end of the filling pipe 31 extending through the side wall of the tank 1 into the interior of the tank 1. A support ring 4 is fixed to the bottom of the inner side wall of the tank 1, and a filter assembly 5 is fitted onto the upper surface of the support ring 4. The filter assembly 5 includes a frame plate 51 located on the upper surface of the support ring 4, and a filter screen 52 fixed inside the frame plate 51. A vertical shaft 53 is rotatably connected to the middle of the upper surface of the frame plate 51 via a bearing. A scraper 54 is fixed to the bottom surface of the vertical shaft 53 and is located on the upper surface of the filter screen 52. A motor 6 that drives the vertical shaft 53 to rotate is installed on the upper surface of the top cover 2. An air pump 7, a pressure gauge 8 and a controller 9 are also installed on the upper surface of the top cover 2. A discharge pipe 10 is fixedly connected to the bottom of the tank body 1. An electric telescopic rod 11 is fixed to the outer wall of the tank body 1. The top telescopic end of the electric telescopic rod 11 is fixedly connected to the lower surface of the top cover 2.

[0024] An annular groove is provided on the outer side of the frame plate 51, and a sealing ring 56 is engaged inside the annular groove. The sealing ring 56 is in contact with the inner wall of the tank body 1.

[0025] In this embodiment, a support rod is provided inside the frame plate 51. The support rod supports the filter screen 52. The sealing ring 56 increases the sealing between the frame plate 51 and the inner wall of the tank 1, so that the optical adhesive will not flow down along the gap between the frame plate 51 and the tank 1. Therefore, the optical adhesive can only pass through the filter screen 52, thereby ensuring the filtration effect.

[0026] A drive shaft is fixedly connected to the bottom output end of the motor 6. A contact plate 55 is fixedly connected to the bottom end of the drive shaft and the top end of the vertical shaft 53. The two contact plates 55 are in contact with each other, and a rubber pad is fixedly connected to the side where the two contact plates 55 are in contact.

[0027] In this embodiment, the motor 6 is a geared motor. The rubber pad can increase the friction between the two contact plates 55. Under the action of friction, the motor 6 drives the vertical shaft 53 to rotate, thereby driving the scraper 54 at the bottom of the vertical shaft 53 to rotate. The scraper 54 scrapes the particulate impurities that remain on the upper surface of the filter screen 52, preventing the particulate impurities from always clogging the same position.

[0028] A locking block 41 is fixed on the upper surface of the support ring 4, and a locking groove 57 is opened on the lower surface of the frame plate 51, and the locking block 41 is inserted into the locking groove 57.

[0029] By engaging the locking block 41 into the locking slot 57, the frame plate 51 can be prevented from rotating on the upper surface of the support ring 4. When it is necessary to clean or replace the filter screen 52, the electric telescopic rod 11 is activated to move the top cover 2 upward. The contact plate 55 at the bottom of the motor 6 separates from the contact plate 55 at the top of the vertical shaft 53. After the top cover 2 is fully raised, the entire filter assembly 5 can be removed from the tank 1 through the vertical shaft 53. This facilitates the cleaning or replacement of the filter screen 52.

[0030] A sealing strip 12 is fixed to the top of the side wall of tank 1.

[0031] The sealing strip 12 can increase the sealing between the top cover 2 and the tank body 1.

[0032] An air pump 7 has an air injection pipe fixedly connected to its outlet, and the air injection pipe extends through the top cover 2 into the tank 1. A one-way valve is fixed in the middle of the air injection pipe.

[0033] The pump body 3 can inject air into the top of the tank 1, thereby increasing the pressure at the top of the tank 1. The pressure causes the optical adhesive to quickly pass through the filter screen 52, improving the filtration efficiency of the optical adhesive.

[0034] Both the air pump 7 and the pressure gauge 8 are electrically connected to the controller 9.

[0035] In this embodiment, the controller 9 is a Siemens SIMATIC S7-1200 programmable controller, the pump body 7 is a Bambi Air 50, the pressure gauge 8 is a WIKA A-10, the electric telescopic rod 11 is a LINAK LA40, and the models of the motor 6 and the pump body 3 are not limited. The pressure gauge 8 monitors the internal pressure of the tank 1 in real time and then feeds the pressure data back to the controller 9. The controller 9 controls the operation of the air pump 7. When the internal pressure of the tank 1 is lower than the preset value of the controller 9, the controller 9 controls the air pump 7 to start and uses the air pump 7 to replenish the inside of the tank 1 to ensure the pressure of the tank 1 is stable. Secondly, the controller 9 coordinates and controls the operation of the motor 6 and the pump body 3.

[0036] Working principle: The optical adhesive is drawn into the tank 1 by the pump body 3. The optical adhesive passes through the filter screen 52 and drains out through the discharge pipe 10. During this process, air is injected into the tank 1 by the air pump 7, thereby increasing the pressure at the top of the tank 1. The pressure forces the optical adhesive to quickly pass through the filter screen 52, improving the filtration efficiency of the optical adhesive. Furthermore, the motor 6 drives the vertical shaft 53 and the scraper 54 to rotate. The scraper 54 scrapes away particulate impurities that remain on the upper surface of the filter screen 52, preventing particulate impurities from clogging the same position and further ensuring the passing efficiency of the optical adhesive.

[0037] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A filter device for optical adhesives, comprising a tank (1), characterized in that: The top of the tank (1) is provided with a top cover (2). A pump body (3) is fixed to the outer wall of the tank (1). A material injection pipe (31) is fixedly connected to the outlet of the pump body (3), and the other end of the material injection pipe (31) extends through the side wall of the tank (1) into the interior of the tank (1). A support ring (4) is fixed to the bottom of the inner side wall of the tank (1). A filter assembly (5) is attached to the upper surface of the support ring (4). The filter assembly (5) includes a frame plate (51) located on the upper surface of the support ring (4). A filter screen (52) is fixed inside the frame plate (51). The upper surface of the frame plate (51) A vertical shaft (53) is rotatably connected to the middle part via a bearing. A scraper (54) is fixed to the bottom surface of the vertical shaft (53), and the scraper (54) is located on the upper surface of the filter screen (52). A motor (6) for driving the vertical shaft (53) to rotate is installed on the upper surface of the top cover (2). An air pump (7), a pressure gauge (8), and a controller (9) are also installed on the upper surface of the top cover (2). A discharge pipe (10) is fixedly connected to the bottom of the tank (1). An electric telescopic rod (11) is fixed to the outer wall of the tank (1). The top telescopic end of the electric telescopic rod (11) is fixedly connected to the lower surface of the top cover (2).

2. The optical adhesive filter device according to claim 1, characterized in that: The frame plate (51) has an annular groove on its outer side, and a sealing ring (56) is engaged inside the annular groove. The sealing ring (56) is in contact with the inner wall of the tank body (1).

3. The optical adhesive filter device according to claim 1, characterized in that: The motor (6) has a drive shaft fixedly connected to its bottom output end. The bottom end of the drive shaft and the top end of the vertical shaft (53) are both fixedly connected to contact plates (55), and the two contact plates (55) are in contact with each other. A rubber pad is fixedly connected to the side where the two contact plates (55) are in contact.

4. The optical adhesive filter device according to claim 1, characterized in that: The upper surface of the support ring (4) is fixed with a locking block (41), and the lower surface of the frame plate (51) is provided with a locking groove (57), and the locking block (41) is inserted into the locking groove (57).

5. The optical adhesive filter device according to claim 1, characterized in that: A sealing strip (12) is fixed to the top of the side wall of the tank (1).

6. The optical adhesive filter device according to claim 1, characterized in that: The air pump (7) has an air injection pipe fixedly connected to its outlet, and the air injection pipe extends through the top cover (2) into the tank (1). A one-way valve is fixed in the middle of the air injection pipe.

7. A filter device for optical adhesives according to claim 6, characterized in that: The air pump (7) and pressure gauge (8) are both electrically connected to the controller (9).

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