Epoxy resin coating mechanism

By designing a guiding and circulating mechanism, the problems of uneven epoxy resin coating and difficulty in eliminating bubbles are solved, thereby improving the uniformity and smoothness of the coating and ensuring the continuity and stability of the coating.

CN224237363UActive Publication Date: 2026-05-15DONGGUAN TANYING COMPOSITE MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN TANYING COMPOSITE MATERIALS CO LTD
Filing Date
2025-05-12
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Existing epoxy resin coating mechanisms suffer from problems such as uneven coating, hardening of material buildup at the tip of the scraper, and difficulty in eliminating air bubbles.

Method used

The epoxy resin is precisely guided to the front of the scraper by the guiding mechanism, the circulating mechanism agitates the material accumulated at the front of the scraper, and the ridges on the guide plate are added to increase the surface tension and promote the bursting of bubbles.

Benefits of technology

It improves the uniformity and smoothness of coating, avoids material hardening, ensures the continuity and stability of coating, and has a simple structure that is easy to maintain.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an epoxy resin coating mechanism, which relates to the technical field of coating machines and comprises a coating machine body, a conveying roll is arranged on the coating machine body, a hopper is arranged above the inlet end of the conveying roll and used for downwards conveying epoxy resin to the conveying roll, and a scraper is arranged at the lower end of the hopper. An epoxy resin coating mechanism; by arranging the guide mechanism, epoxy resin is accurately guided to the front of the scraper, blanking on the upper surface of the scraper is avoided, and the coating uniformity is improved; the circulating mechanism adopts a reciprocating lead screw to drive a scraper to move left and right, so that epoxy resin accumulated at the front end of the scraper is effectively stirred, hardening accumulation is prevented, and continuous and stable coating is ensured; the raised lines on the guide plate increase the surface tension of the resin, promote bubbles to float upwards and break, and improve the coating flatness; the scraper is stably installed through the fixing base and the supporting groove, loosening displacement is avoided, and structural reliability is enhanced; the overall structure is simple, maintenance is easy, and epoxy resin coating requirements are met.
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Description

Technical Field

[0001] This utility model relates to the field of coating machine technology, specifically to an epoxy resin coating mechanism. Background Technology

[0002] Existing epoxy resin coating mechanisms typically employ a doctor blade coating method, where epoxy resin is conveyed from the hopper to the conveyor roll and smoothed by a doctor blade. However, traditional structures suffer from the problem of epoxy resin easily dripping onto the upper surface of the doctor blade, resulting in uneven coating. At the same time, epoxy resin tends to accumulate at the tip of the doctor blade, and if not cleaned in time, the resin will harden and affect the coating quality. Furthermore, air bubbles in the epoxy resin are difficult to eliminate effectively, further reducing the smoothness of the coating.

[0003] Therefore, there is an urgent need for an improved coating mechanism to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides an epoxy resin coating mechanism that solves the problem of material accumulation and long-term material hardening during doctor blade coating, and uses raised strips to cause air bubbles in the epoxy resin to rise and burst.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an epoxy resin coating mechanism, comprising a coating machine body, a conveyor roll mounted on the coating machine body, a hopper above the inlet end of the conveyor roll for conveying epoxy resin downwards to the conveyor roll, a scraper at the lower end of the hopper, and a guiding mechanism at the lower end of the hopper for guiding the epoxy resin to the front of the scraper to prevent epoxy resin from falling onto the upper surface of the scraper; a circulation mechanism is provided on both sides inside the coating machine body, the circulation mechanism being located above the scraper and below the guiding mechanism for agitating the epoxy resin accumulated at the front end of the scraper to prevent hardening and accumulation.

[0006] Furthermore: the guiding mechanism includes a guide plate, which is fixed at the lower end of the hopper and is used to guide the epoxy resin to the front end of the scraper; a protrusion is fixed at the upper end of the guide plate, which increases the surface tension of the epoxy resin and causes the bubbles to rise and burst.

[0007] Furthermore: the circulation mechanism includes a drive motor, a reciprocating screw, a slider, a limiting strip, a scraper, and scraper teeth; the drive motor is fixed to the side of the coating machine body, the reciprocating screw is connected to the motor output end, and the slider rotates in match with the reciprocating screw; the limiting strip is fixed to the lower end of the guide plate, and the upper end of the slider slides within the limiting strip; the scraper is fixed to the lower end of the slider and is used to stir the epoxy resin accumulated at the front end of the scraper from left to right; the scraper teeth are fixed to the lower end of the scraper to improve the stirring efficiency.

[0008] Furthermore: a fixed base is fixed to the lower end of the discharge port of the hopper, and the scraper is fixed to the fixed base by multiple screws; a support groove is provided at the lower end of the fixed base, and the lower end of the scraper matches and abuts against the support groove to ensure stable installation of the scraper.

[0009] Furthermore, the scraper teeth are multiple and evenly distributed at the lower end of the scraper to enhance the stirring effect on the epoxy resin.

[0010] Furthermore, the upper end of the convex strip is designed in an arc shape.

[0011] This invention provides an epoxy resin coating mechanism. Compared with the prior art, it has the following advantages:

[0012] This epoxy resin coating mechanism features a guiding mechanism that precisely directs the epoxy resin towards the front of the scraper, preventing material from dripping onto the scraper's surface and improving coating uniformity. A circulation mechanism uses a reciprocating screw to drive the scraper left and right, effectively agitating the epoxy resin accumulated at the scraper's front end, preventing hardening and ensuring continuous and stable coating. Raised strips on the guide plate increase the resin's surface tension, causing air bubbles to rise and burst, improving coating smoothness. The scraper is stably installed via a fixed base and support groove, preventing loosening and displacement, and enhancing structural reliability. The overall structure is simple, easy to maintain, and suitable for epoxy resin coating applications. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the hopper and drive motor of this utility model;

[0015] Figure 3 This is a plan view of the guiding mechanism and the circulation mechanism of this utility model;

[0016] Figure 4 for Figure 2 Enlarged structural diagram at point A in the middle.

[0017] In the diagram: 1. Coating machine body; 2. Conveyor roll; 3. Hopper; 4. Guide plate; 5. Scraper; 6. Fixed base; 7. Support groove; 8. Limiting strip; 9. Sliding block; 10. Scraper; 11. Scraper teeth; 12. Reciprocating screw; 13. Drive motor; 14. Raised bar. Detailed Implementation

[0018] 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.

[0019] Please see Figure 1-4 This utility model provides a technical solution: an epoxy resin coating mechanism; specifically, it consists of a coating machine body 1, on which a conveyor roll 2 is provided. A hopper 3 is provided above the inlet end of the conveyor roll 2, and epoxy resin is fed into the hopper 3 from above. The epoxy resin is conveyed downward through the hopper 3 onto the conveyor roll 2. A scraper 5 is provided at the lower end of the hopper 3, which scrapes the epoxy resin on the conveyor roll 2 to flatten it. This is existing technology and will not be described in detail here. A guiding mechanism is provided at the lower end of the hopper 3, which guides the epoxy resin to the front of the scraper 5 to prevent the epoxy resin from falling onto the upper surface of the scraper 5. At the same time, a circulation mechanism is provided on both sides inside the coating machine body 1. The circulation mechanism is located above the scraper 5 and below the guiding mechanism. The circulation mechanism agitates the epoxy resin accumulated at the front end of the scraper 5, preventing the epoxy resin from hardening at the front end of the scraper 5, thus preventing the epoxy resin from accumulating too much and affecting the coating process.

[0020] The guiding mechanism includes a guide plate 4, which is located at the lower end of the hopper 3. The epoxy resin material in the hopper 3 is guided to the front end of the scraper 5 through the guide plate 4 to prevent the material from falling onto the blade surface of the scraper 5. A protrusion 14 is fixed at the upper end of the guide plate 4. The protrusion 14 can increase the surface tension of the epoxy resin material, thereby causing the air bubbles in the epoxy resin material to float up and break, thus preventing the air bubbles in the epoxy resin material from affecting the smoothness of the coating.

[0021] The circulation mechanism includes a drive motor 13 fixed to the side of the coating machine body 1, a reciprocating screw 12 fixed to the output end of the drive motor 13, a slider 9 rotating on the reciprocating screw 12, a limit strip 8 fixed to the lower end of the guide plate 4, the upper end of the slider 9 slidingly disposed within the limit strip 8, and a scraper 10 fixed to the lower end of the slider 9. The scraper 10 circulates and agitates the accumulated material on the upper end of the scraper 5 to prevent the material from hardening. At the same time, scraper teeth 11 are fixed to the lower end of the scraper 10. The scraper teeth 11 can improve the agitation efficiency and further prevent the material from hardening.

[0022] A fixed base 6 is fixed at the lower end of the discharge port of the hopper 3. The scraper 5 is fixed to the fixed base 6 by multiple screws. A support groove 7 is provided at the lower end of the fixed base 6. The lower end of the scraper 5 is matched with the support groove 7. The support groove 7 enables the scraper 5 to be placed stably on the fixed base 6, forming a stable installation effect and preventing the scraper 5 from loosening or shifting.

Claims

1. An epoxy resin coating mechanism, comprising a coating machine body (1), wherein a conveyor roll (2) is provided on the coating machine body (1), a hopper (3) is provided above the inlet end of the conveyor roll (2), the hopper (3) is used to convey epoxy resin downward to the conveyor roll (2), and a scraper (5) is provided at the lower end of the hopper (3), characterized in that: The lower end of the hopper (3) is provided with a guiding mechanism, which guides the epoxy resin to the front of the scraper (5) to prevent the epoxy resin from falling onto the upper surface of the scraper (5); the coating machine body (1) is provided with a circulation mechanism on both sides inside, which is located above the scraper (5) and below the guiding mechanism, and is used to stir the epoxy resin accumulated at the front end of the scraper (5) to prevent hardening accumulation.

2. The epoxy resin coating mechanism according to claim 1, characterized in that: The guiding mechanism includes a guide plate (4), which is fixed at the lower end of the hopper (3) and is used to guide the epoxy resin to the front end of the scraper (5); a protrusion (14) is fixed at the upper end of the guide plate (4), which increases the surface tension of the epoxy resin and causes the bubbles to rise and break.

3. The epoxy resin coating mechanism according to claim 2, characterized in that: The circulation mechanism includes a drive motor (13), a reciprocating screw (12), a slider (9), a limiting strip (8), a scraper (10), and scraper teeth (11). The drive motor (13) is fixed on the side of the coating machine body (1). The reciprocating screw (12) is connected to the output end of the motor (13). The slider (9) rotates in match with the reciprocating screw (12). The limiting strip (8) is fixed at the lower end of the guide plate (4). The upper end of the slider (9) slides within the limiting strip (8). The scraper (10) is fixed at the lower end of the slider (9) and is used to stir the epoxy resin accumulated at the front end of the scraper (5) left and right. The scraper teeth (11) are fixed at the lower end of the scraper (10) to improve the stirring efficiency.

4. The epoxy resin coating mechanism according to claim 2, characterized in that: The lower end of the discharge port of the hopper (3) is fixed with a fixed base (6), and the scraper (5) is fixed on the fixed base (6) by multiple screws; the lower end of the fixed base (6) is provided with a support groove (7), and the lower end of the scraper (5) matches and abuts against the support groove (7) to ensure that the scraper (5) is installed stably.

5. An epoxy resin coating mechanism according to claim 3, characterized in that: The scraper teeth (11) are multiple and evenly distributed at the lower end of the scraper (10) to enhance the stirring effect on the epoxy resin.

6. An epoxy resin coating mechanism according to claim 2, characterized in that: The upper end of the protrusion (14) is arc-shaped.