Improved hot melt adhesive filtering device

Abstract

The utility model relates to the technical field of hot melt adhesive production, and discloses an improved hot melt adhesive filtering device which comprises a filtering barrel, the upper end of the filtering barrel is connected with a cover plate through a fixing assembly, a motor is installed at the upper end of the cover plate, and the driving end of the motor is fixedly connected with a rotating shaft. The inner wall of the filter barrel is slidably connected with a coarse filter plate and a fine filter plate respectively, the middle parts of the coarse filter plate and the fine filter plate sleeve the outer wall of a rotating shaft, the outer wall of the rotating shaft is fixedly connected with two groups of flexible scrapers, and the lower ends of the two groups of flexible scrapers are in contact with the upper end of the coarse filter plate and the upper end of the fine filter plate respectively. According to the utility model, through the combination of the coarse filter plate and the fine filter plate and the dynamic cleaning of the scraper, impurities with different particle sizes can be effectively intercepted, and the blockage of the filter screen is reduced, so that the filtering efficiency and the filtering effect are improved, and the cover plate is opened and closed in an auxiliary manner through the hydraulic rod and the telescopic rod, so that internal filtering parts are convenient to clean and replace, and the maintenance difficulty is reduced.

Description

Technical Field

[0001] This utility model relates to the field of hot melt adhesive production technology, and in particular to an improved hot melt adhesive filtration device. Background Technology

[0002] Hot melt adhesives are widely used in many industries such as electronics, packaging, and furniture manufacturing. During the production process of hot melt adhesives, various impurities are often mixed into the hot melt adhesives due to impurities in the raw materials themselves and particles generated by wear and tear of production equipment. If these impurities are not filtered out, they will have many adverse effects on subsequent use.

[0003] Currently, most filtration devices on the market have relatively simple filtration structures, making it difficult to effectively remove impurities of different particle sizes. Furthermore, the filter screens are prone to clogging, resulting in low filtration efficiency. In terms of cleaning and maintenance, the disassembly and installation of the filter screens in many devices are complex, consuming a lot of time and manpower, which affects production efficiency. In response to this technical problem, this application proposes an improved hot melt adhesive filtration device. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an improved hot melt adhesive filtration device. Through the combination of coarse and fine filter plates and the dynamic cleaning of the scraper, it can effectively intercept impurities of different particle sizes, reduce filter screen clogging, and thus improve filtration efficiency and effect. Furthermore, the hydraulic rod and telescopic rod assist in opening and closing the cover plate, facilitating the cleaning and replacement of internal filter components, thereby reducing maintenance difficulty.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] An improved hot melt adhesive filtration device includes a filter barrel. A cover plate is connected to the upper end of the filter barrel via a fixing assembly. A motor is installed on the upper end of the cover plate. A rotating shaft is fixedly connected to the drive end of the motor. A coarse filter plate and a fine filter plate are slidably connected to the inner wall of the filter barrel. The middle parts of the coarse and fine filter plates are sleeved on the outer wall of the rotating shaft. Two sets of flexible scrapers are fixedly connected to the outer wall of the rotating shaft. The lower ends of the two sets of flexible scrapers contact the upper ends of the coarse filter plate and the upper ends of the fine filter plate, respectively. A magnetic scraper is fixedly connected to the lower side of the outer wall of the rotating shaft. The lower end of the magnetic scraper contacts the lower side of the inner wall of the filter barrel.

[0007] Furthermore, the fixing assembly includes multiple fixing ears 1 fixedly connected to the upper side of the outer wall of the filter barrel and multiple fixing ears 2 fixedly connected to the periphery of the fixing ring, wherein the middle parts of the fixing ears 1 and fixing ears 2 are connected together by fastening bolts.

[0008] Furthermore, a feed inlet is provided on the upper left side of the cover plate, and fixing plates are fixedly connected to both the left and right sides of the outer wall of the cover plate.

[0009] Furthermore, a fixing ring is fixedly connected to the lower side of the outer wall of the filter barrel, and fixing blocks are fixedly connected to both ends of the fixing ring. A hydraulic rod is installed on the upper end of the left fixing block, and the driving end of the hydraulic rod is fixedly connected to the lower end of the left fixing plate.

[0010] Furthermore, a telescopic rod is fixedly connected to the upper end of the right-side fixing block, and the upper end of the telescopic rod is fixedly connected to the lower end of the right-side fixing plate.

[0011] Furthermore, the lower end of the fixing ring is fixedly connected to multiple support legs.

[0012] Furthermore, a heating chamber is provided on the inner wall of the filter barrel, and an electric heating ring is installed inside the heating chamber.

[0013] Furthermore, the lower end of the filter barrel is provided with a discharge port, the discharge port is equipped with a discharge pipe, and the discharge pipe is equipped with a discharge valve.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, the two-stage filtration structure of coarse filter plate and fine filter plate can effectively intercept impurities of different particle sizes. The flexible scraper can dynamically clean the filter screen to prevent clogging, greatly improving filtration efficiency and effect and ensuring the purity of hot melt adhesive. Furthermore, the magnetic scraper can adsorb ferromagnetic metal impurities in the hot melt adhesive, specifically solving the problem of the difficulty in removing ferromagnetic impurities. This meets the application scenarios with high requirements for the purity of hot melt adhesive, thereby improving product quality.

[0016] 2. In this utility model, the cover can be quickly opened and closed by using a lifting structure composed of a hydraulic rod and a telescopic rod. The design of the fixing components makes the disassembly and installation process simple and easy, thereby facilitating the operator to clean, replace and repair the internal filter components, reducing maintenance difficulty and time costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of an improved hot melt adhesive filtration device proposed in this utility model.

[0018] Figure 2 This is a cross-sectional view of the filter barrel of an improved hot melt adhesive filtration device proposed in this utility model;

[0019] Figure 3 This is a schematic diagram of the filter plate of an improved hot melt adhesive filtration device proposed in this utility model.

[0020] Legend:

[0021] 1. Filter barrel; 2. Fixing ring; 3. Support leg; 4. Cover plate; 5. Feed inlet; 6. Discharge outlet; 7. Discharge pipe; 8. Discharge valve; 9. Motor; 10. Rotating shaft; 11. Flexible scraper; 12. Magnetic scraper; 13. Coarse filter plate; 14. Fine filter plate; 15. Heating chamber; 16. Electric heating ring; 17. Fixing block; 18. Fixing plate; 19. Hydraulic rod; 20. Telescopic rod; 21. Fixing lug 1; 22. Fixing lug 2; 23. Fastening bolt. 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] Reference Figures 1-3 This utility model provides an embodiment of an improved hot melt adhesive filtration device, comprising a filter barrel 1. A cover plate 4 is connected to the upper end of the filter barrel 1 via a fixing assembly. The fixing assembly includes multiple fixing ears 21 fixedly connected to the upper side of the outer wall of the filter barrel 1 and multiple fixing ears 22 fixedly connected to the periphery of a fixing ring 2. The middle portions of the fixing ears 21 and 22 are connected together by fastening bolts 23. A motor 9 is mounted on the upper end of the cover plate 4, and a rotating shaft 10 is fixedly connected to the drive end of the motor 9. The inner wall of the filter barrel 1 is respectively... A coarse filter plate 13 and a fine filter plate 14 are slidably connected. The middle part of the coarse filter plate 13 and the fine filter plate 14 are sleeved on the outer wall of the rotating shaft 10. Two sets of flexible scrapers 11 are fixedly connected to the outer wall of the rotating shaft 10. The lower ends of the two sets of flexible scrapers 11 are in contact with the upper ends of the coarse filter plate 13 and the upper ends of the fine filter plate 14, respectively. A magnetic scraper 12 is fixedly connected to the lower side of the outer wall of the rotating shaft 10. The lower end of the magnetic scraper 12 is in contact with the lower side of the inner wall of the filter barrel 1. A heating chamber 15 is opened on the inner wall of the filter barrel 1. An electric heating ring 16 is installed inside the heating chamber 15.

[0024] Specifically, after the hot melt adhesive enters the filter tank 1, it first passes through the coarse filter plate 13 to intercept larger particles of impurities, and then passes through the fine filter plate 14 to further filter fine particles. Then, the motor 9 is started, and its drive end drives the rotating shaft 10 to rotate. The flexible scraper 11, fitted onto the rotating shaft 10, rotates with the shaft 10, continuously scraping off impurities adhering to the surfaces of the coarse filter plate 13 and the fine filter plate 14 to prevent filter clogging. Simultaneously, the rotating shaft 10 drives the magnetic scraper 12 to rotate. The magnetic scraper 12 can adsorb ferromagnetic metal impurities in the hot melt adhesive, further purifying it. During the filtration process, the electric heating chamber 15 on the inner wall of the filter tank 1... The heating ring 16 operates to heat the hot melt adhesive in the filter tank 1, keeping it in a molten state and preventing condensation. Through the two-stage filtration structure of the coarse filter plate 13 and the fine filter plate 14, impurities of different particle sizes can be effectively intercepted. Furthermore, the flexible scraper 11 can dynamically clean the filter screen to prevent clogging, thereby greatly improving filtration efficiency and effectiveness and ensuring the purity of the hot melt adhesive. In addition, the magnetic scraper 12 can use magnetism to adsorb ferromagnetic metal impurities in the hot melt adhesive, specifically solving the problem of the difficulty in removing ferromagnetic impurities. This meets the application scenarios with high requirements for the purity of hot melt adhesive and improves product quality.

[0025] Reference Figure 1 and Figure 2 A feed inlet 5 is provided on the upper left side of the cover plate 4. Fixing plates 18 are fixedly connected to both the left and right sides of the outer wall of the cover plate 4. A fixing ring 2 is fixedly connected to the lower side of the outer wall of the filter barrel 1. Fixing blocks 17 are fixedly connected to both the left and right ends of the fixing ring 2. A hydraulic rod 19 is installed on the upper end of the left fixing block 17. The driving end of the hydraulic rod 19 is fixedly connected to the lower end of the left fixing plate 18. A telescopic rod 20 is fixedly connected to the upper end of the right fixing block 17. The upper end of the telescopic rod 20 is fixedly connected to the lower end of the right fixing plate 18. Multiple support legs 3 are fixedly connected to the lower end of the fixing ring 2. A discharge port 6 is provided at the lower end of the filter barrel 1. A discharge pipe 7 is installed inside the discharge port 6. A discharge valve 8 is installed inside the discharge pipe 7.

[0026] Specifically, the feed inlet 5 on the upper left side of the cover plate 4 facilitates the entry of hot melt adhesive into the filter barrel 1, providing a material source for the subsequent filtration process. The discharge port 6 and discharge pipe 7 at the lower end of the filter barrel 1 facilitate the outflow of the filtered hot melt adhesive. The discharge valve 8 inside the discharge pipe 7 can be adjusted to control the outflow volume and speed of the hot melt adhesive according to actual production needs. After filtration, when maintenance, cleaning, or replacement of parts inside the filter device is required, the hydraulic rod 19 installed on the left fixed block 17 is activated. The drive end of the hydraulic rod 19 moves up or down, pushing the left fixed plate 18. Since the right fixed plate 18 is connected to the right fixed block 17 through the telescopic rod 20, the telescopic rod 20 plays an auxiliary support and guiding role, allowing the cover plate 4 to rise or fall smoothly, achieving the purpose of opening or closing the filter barrel 1. This facilitates the operator to clean, replace, and repair the internal filter components, reducing maintenance difficulty and time costs.

[0027] Working principle: In use, hot melt adhesive is first fed into the filter tank 1 through the feed inlet 5 located on the upper left side of the cover plate 4. Under its own gravity, the hot melt adhesive flows from top to bottom, first passing through the coarse filter plate 13 to intercept larger particles; then, the hot melt adhesive passes through the fine filter plate 14 to filter out fine particles. Then, the motor 9 is started, and the drive end of the motor 9 drives the rotating shaft 10 to rotate. The two sets of flexible scrapers 11 fixed to the outer wall of the rotating shaft 10 rotate accordingly, continuously scraping away impurities adhering to the upper surfaces of the coarse filter plate 13 and the fine filter plate 14, preventing filter clogging and ensuring smooth filtration. During this process, the magnetic scraper 12 fixed on the lower side of the outer wall of the rotating shaft 10 rotates with the rotating shaft 10. The magnetic scraper 12 can use magnetism to adsorb ferromagnetic metal impurities that may exist in the hot melt adhesive, thereby improving the purity of the hot melt adhesive. During the filtration process, the electric heating ring 16 in the heating chamber 15 opened on the inner wall of the filter barrel 1 works continuously to heat the hot melt adhesive in the filter barrel 1 and maintain the molten state of the hot melt adhesive. After multi-stage filtration and demagnetization, the hot melt adhesive reaches the bottom of the filter barrel 1 and flows out through the discharge pipe 7 in the discharge port 6 at the lower end under the control of the discharge valve 8 for use in subsequent processes.

[0028] When it is necessary to clean or replace parts inside the filter device, first loosen the fastening bolt 23 to separate the fixing ear 1 21 and the fixing ear 22. Then, activate the hydraulic rod 19 installed on the left fixing block 17. The driving end of the hydraulic rod 19 pushes the left fixing plate 18. The telescopic rod 20 on the right side provides auxiliary support and guidance, causing the cover plate 4 to rise and open the filter device. The operator can then easily remove parts such as the coarse filter plate 13 and the fine filter plate 14 for cleaning or replacement. After maintenance is completed, the hydraulic rod 19 retracts, causing the cover plate 4 to fall back to its original position. The cover plate 4 is then securely connected to the filter barrel 1 by the fixing assembly consisting of the fixing ear 1 21, the fixing ear 22 and the fastening bolt 23.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An improved hot melt adhesive filtering device, characterized in that, The filter includes a filter barrel (1), the upper end of which is connected to a cover plate (4) via a fixing assembly. A motor (9) is installed on the upper end of the cover plate (4), and a rotating shaft (10) is fixedly connected to the drive end of the motor (9). A coarse filter plate (13) and a fine filter plate (14) are slidably connected to the inner wall of the filter barrel (1). The middle parts of the coarse filter plate (13) and the fine filter plate (14) are sleeved on the outer wall of the rotating shaft (10). Two sets of flexible scrapers (11) are fixedly connected to the outer wall of the rotating shaft (10). The lower ends of the two sets of flexible scrapers (11) are in contact with the upper ends of the coarse filter plate (13) and the upper ends of the fine filter plate (14), respectively. A magnetic scraper (12) is fixedly connected to the lower side of the outer wall of the rotating shaft (10), and the lower end of the magnetic scraper (12) is in contact with the lower side of the inner wall of the filter barrel (1).

2. The improved hot melt adhesive filtering device according to claim 1, characterized in that: The fixing assembly includes multiple fixing ears 1 (21) fixedly connected to the upper side of the outer wall of the filter barrel (1) and multiple fixing ears 2 (22) fixedly connected to the four sides of the fixing ring (2). The middle parts of the fixing ears 1 (21) and fixing ears 2 (22) are connected together by fastening bolts (23).

3. The improved hot melt adhesive filtering device according to claim 1, characterized in that: The upper left side of the cover plate (4) is provided with a feed inlet (5), and the left and right sides of the outer wall of the cover plate (4) are fixedly connected with fixing plates (18).

4. An improved hot melt adhesive filtering device according to claim 1, characterized in that: A fixing ring (2) is fixedly connected to the lower side of the outer wall of the filter barrel (1). Fixing blocks (17) are fixedly connected to both the left and right ends of the fixing ring (2). A hydraulic rod (19) is installed on the upper end of the fixing block (17) on the left side. The driving end of the hydraulic rod (19) is fixedly connected to the lower end of the fixing plate (18) on the left side.

5. An improved hot melt adhesive filtering device according to claim 4, characterized in that: The upper end of the right-side fixing block (17) is fixedly connected to a telescopic rod (20), and the upper end of the telescopic rod (20) is fixedly connected to the lower end of the right-side fixing plate (18).

6. An improved hot melt adhesive filtering device according to claim 4, characterized in that: The lower end of the fixed ring (2) is fixedly connected to multiple support legs (3).

7. An improved hot melt adhesive filtering device according to claim 1, characterized in that: The filter barrel (1) has a heating chamber (15) on its inner wall, and an electric heating ring (16) is installed inside the heating chamber (15).

8. An improved hot melt adhesive filtering device according to claim 1, characterized in that: The filter barrel (1) is provided with a discharge port (6) at its lower end. A discharge pipe (7) is installed inside the discharge port (6), and a discharge valve (8) is installed inside the discharge pipe (7).

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