Hot melt adhesive production filter

Abstract

The utility model discloses a hot melt adhesive production filtering machine, relates to the technical field of hot melt adhesive production equipment, and aims to provide a hot melt adhesive production filtering machine capable of improving the filtering efficiency of a hot melt adhesive melting solution by utilizing negative pressure adsorption, which is technically characterized by comprising a filtering cylinder, supporting legs are arranged below the filtering cylinder, a filtering plate is arranged in the filtering cylinder, and a filter screen is arranged in the filtering cylinder. A filter plate is arranged in the filter cartridge, a plurality of filter holes are formed in the filter plate, a discharge port is formed in the lower part of the filter cartridge, the discharge port is opened or closed through an electric control valve, a support frame is arranged on the side surface of the filter cartridge, and an exhaust pump is arranged on the support frame. According to the hot melt adhesive filtering device, negative pressure is generated in the filtering device, hot melt adhesive melt on the filtering plate is sucked into the filtering barrel through the negative pressure, the rapid filtering effect is achieved, and compared with the mode of pressurizing on the filtering plate, the negative pressure mode can prevent air from being mixed into the hot melt adhesive melt.

Description

Technical Field

[0001] The utility model relates to the technical field of hot melt adhesive production equipment, in particular to a hot melt adhesive production filter. Background Art

[0002] Hot melt adhesive is a plastic adhesive that is suitable for a variety of bonding needs and has high bonding strength. Hot melt adhesive has a large bonding strength and is suitable for a variety of occasions. It has a wide range of uses and stable chemical properties. In addition, hot melt adhesive is also water-resistant and has good storage stability. It can bond hydrophobic surfaces without the use of a wetting agent. Hot melt adhesive needs to be filtered during the production process. Due to the viscosity of the hot melt adhesive melt, the traditional self-weight filtration efficiency is very low, resulting in a longer filtration process. Utility Model Content

[0003] 1. Technical issues to be solved

[0004] In view of the deficiencies in the prior art, the utility model provides a hot melt adhesive production filter which utilizes negative pressure adsorption to improve the filtering efficiency of hot melt adhesive melt liquid.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hot melt adhesive production filter, comprising a filter cartridge, a support leg is provided under the filter cartridge, a filter plate is provided inside the filter cartridge, a plurality of filter holes are provided on the filter plate, a discharge port is provided under the filter cartridge, the discharge port is opened or closed by an electric control valve, a support frame is provided on the side of the filter cartridge, an exhaust pump is provided on the support frame, an exhaust pipe is provided at one end of the exhaust pump, the exhaust pipe is located under the filter plate, and the exhaust pipe opening faces downward.

[0007] Preferably, an external liquid level gauge is provided near the top of the filter cylinder, and the external liquid level gauge is used to detect the position of the hot melt adhesive above the filter plate.

[0008] Preferably, an internal liquid level gauge is provided in the filter cartridge below the exhaust pipe, and the internal liquid level gauge is used to detect the position of the hot melt adhesive below the filter plate.

[0009] Preferably, a disturbance component is provided in the filter cartridge at a position above the filter plate, and the disturbance component is used to prevent the filter plate from being blocked.

[0010] Preferably, the disturbance component includes a fixing frame, a motor and a rotating shaft, the fixing frame is arranged on the filter cartridge, the motor is arranged on the fixing frame, the rotating shaft is arranged under the motor, a brush plate is arranged on the side of the rotating shaft, and the brush plate is fitted with the filter plate.

[0011] Preferably, scrapers are provided on both sides of the brush plate, and the scrapers are in contact with the side walls of the filter cartridge.

[0012] Preferably, a heating tube is provided on the brush plate, and the heating tube is used to improve the fluidity of the hot melt adhesive.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides a hot melt adhesive production filter having the following

[0015] Beneficial effects:

[0016] 1. By setting up an exhaust pump and an exhaust pipe, when filtering, pour the hot melt adhesive melt onto the filter plate, and then the exhaust pump uses the exhaust pipe to exhaust the air in the filter cartridge, so that negative pressure is generated inside the filter cartridge. The negative pressure is used to suck the hot melt adhesive melt on the filter plate into the filter cartridge to achieve a rapid filtration effect. Compared with the method of pressurizing the filter plate, the use of negative pressure can prevent air from mixing into the hot melt adhesive melt.

[0017] 2. By setting a brush plate and a scraper, the brush plate can rotate on the filter plate driven by the rotating shaft. The brush plate will scrape the impurities on the filter plate when rotating to prevent the impurities from accumulating and clogging the filter plate, thereby preventing the filtering efficiency of the filter plate from being affected. When the brush plate rotates, it will drive the scrapers at both ends to move, and use the scrapers to scrape off the hot melt adhesive melt attached to the wall of the filter cylinder to prevent the melt from adhering to the wall of the filter cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the cross section of the filter cartridge of the utility model;

[0020] Figure 3 It is a three-dimensional schematic diagram of the disturbance component of the utility model;

[0021] Figure 4 It is a schematic diagram of the elevation of the utility model.

[0022] In the figure: 1. filter cartridge; 2. external liquid level gauge; 3. disturbance component; 301. fixing frame; 302. motor; 303. rotating shaft; 304. brush plate; 305. scraper; 306. heating tube; 4. filter plate; 5. exhaust pump; 6. support frame; 7. support leg; 8. exhaust pipe; 9. internal liquid level gauge; 10. discharge port. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4 A hot melt adhesive production filter comprises a filter cartridge 1, a support leg 7 is provided under the filter cartridge 1, a filter plate 4 is provided inside the filter cartridge 1, a plurality of filter holes are provided on the filter plate 4, a discharge port 10 is provided under the filter cartridge 1, and the discharge port 10 is opened or closed by an electric control valve, a support frame 6 is provided on the side of the filter cartridge 1, an exhaust pump 5 is provided on the support frame 6, an exhaust pipe 8 is provided at one end of the exhaust pump 5, the exhaust pipe 8 is located below the filter plate 4, and the exhaust pipe 8 opens downward;

[0025] In the present invention, an exhaust pump 5 and an exhaust pipe 8 are provided. The exhaust pump 5 can exhaust the air in the filter cartridge 1 through the exhaust pipe 8, so that negative pressure is generated in the filter cartridge 1. The hot melt adhesive on the filter plate 4 is sucked in by the negative pressure, so that the hot melt adhesive is quickly filtered by the negative pressure, and the air is prevented from being mixed into the hot melt adhesive. The exhaust pipe 8 is arranged with its opening facing downward, so that the hot melt adhesive can be prevented from falling into the exhaust pipe 8.

[0026] An external liquid level gauge 2 is provided near the top of the filter cartridge 1, and the external liquid level gauge 2 is used to detect the position of the hot melt adhesive above the filter plate 4. An internal liquid level gauge 9 is provided below the exhaust pipe 8 in the filter cartridge 1, and the internal liquid level gauge 9 is used to detect the position of the hot melt adhesive below the filter plate 4.

[0027] By setting up an external liquid level meter 2 and an internal liquid level meter 9, the external liquid level meter 2 can be used to detect the liquid level of the hot melt adhesive on the filter plate 4 to avoid the risk of overflow caused by excessive hot melt adhesive being added at one time, while the internal liquid level meter 9 can detect the height of the hot melt adhesive in the filter tube 1 to avoid the hot melt adhesive exceeding the position of the exhaust pipe 8 and preventing the hot melt adhesive from being discharged during exhaust.

[0028] A disturbance component 3 is provided at a position on the filter plate 4 in the filter cartridge 1, and the disturbance component 3 is used to prevent the filter plate 4 from being blocked. The disturbance component 3 includes a fixing frame 301, a motor 302, and a rotating shaft 303. The fixing frame 301 is provided on the filter cartridge 1, the motor 302 is provided on the fixing frame 301, the rotating shaft 303 is provided under the motor 302, and a brush plate 304 is provided on the side of the rotating shaft 303, and the brush plate 304 is in contact with the filter plate 4;

[0029] By providing the brush plate 304 , the brush plate 304 can disturb the hot melt adhesive melt on the filter plate 4 , thereby preventing impurities from accumulating and clogging the filter plate 4 , thereby avoiding affecting the filtering effect of the hot melt adhesive melt.

[0030] Scrapers 305 are provided on both sides of the brush plate 304, and the scrapers 305 are in contact with the side walls of the filter cartridge 1;

[0031] By providing the scraper 305 , the scraper 305 can scrape off the hot melt adhesive on the wall of the filter cartridge 1 to prevent the hot melt adhesive from adhering to the wall of the filter cartridge 1 .

[0032] A heating tube 306 is provided on the brush plate 304, and the heating tube 306 is used to improve the fluidity of the hot melt adhesive;

[0033] By providing the heating tube 306 , the heating tube 306 can heat the hot melt adhesive on the filter plate 4 , thereby preventing the problem of reduced fluidity due to reduced temperature of the hot melt adhesive during filtering.

[0034] Working principle:

[0035] During filtering, the hot melt adhesive is poured onto the filter plate 4, and then the exhaust pump 5 exhausts the air in the filter tube 1 through the exhaust pipe 8, so that negative pressure is generated inside the filter tube 1. The hot melt adhesive on the filter plate 4 is absorbed by the negative pressure. At the same time, the motor 302 drives the brush plate 304 and the scraper 305 to rotate through the rotating shaft 303. The brush plate 304 disturbs the impurities on the filter plate 4 to avoid impurity accumulation. The scraper 305 scrapes off the hot melt adhesive attached to the inner wall of the filter tube 1. After filtering is completed, the exhaust pump 5 is closed, the discharge port 10 is opened, and the filtered hot melt adhesive is discharged.

[0036] The above are only specific embodiments of the utility model, but the technical features of the utility model are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the utility model to solve basically the same technical problems and achieve basically the same technical effects are all included in the protection scope of the utility model.

Claims

1. A hot melt adhesive production filter, comprising a filter cartridge (1), characterized in that: A support leg (7) is provided under the filter cartridge (1), a filter plate (4) is provided inside the filter cartridge (1), a plurality of filter holes are provided on the filter plate (4), a discharge port (10) is provided under the filter cartridge (1), the discharge port (10) is opened or closed by an electric control valve, a support frame (6) is provided on the side of the filter cartridge (1), an exhaust pump (5) is provided on the support frame (6), an exhaust pipe (8) is provided at one end of the exhaust pump (5), the exhaust pipe (8) is located below the filter plate (4), and the exhaust pipe (8) opens downward.

2. A hot melt adhesive production filter according to claim 1, characterized in that: An external liquid level gauge (2) is provided near the top of the filter cylinder (1), and the external liquid level gauge (2) is used to detect the position of the hot melt adhesive above the filter plate (4).

3. A hot melt adhesive production filter according to claim 1, characterized in that: An internal liquid level gauge (9) is provided in the filter cartridge (1) at a position below the exhaust pipe (8), and the internal liquid level gauge (9) is used to detect the position of the hot melt adhesive below the filter plate (4).

4. A hot melt adhesive production filter according to claim 1, characterized in that: A disturbance component (3) is provided in the filter cartridge (1) at a position on the filter plate (4), and the disturbance component (3) is used to prevent the filter plate (4) from being blocked.

5. A hot melt adhesive production filter according to claim 4, characterized in that: The disturbance component (3) comprises a fixed frame (301), a motor (302) and a rotating shaft (303); the fixed frame (301) is arranged on the filter cartridge (1); the motor (302) is arranged on the fixed frame (301); the rotating shaft (303) is arranged under the motor (302); a brush plate (304) is arranged on the side of the rotating shaft (303); and the brush plate (304) is in contact with the filter plate (4).

6. A hot melt adhesive production filter according to claim 5, characterized in that: Scrapers (305) are provided on both sides of the brush plate (304), and the scrapers (305) are in contact with the side walls of the filter cartridge (1).

7. A hot melt adhesive production filter according to claim 5, characterized in that: The brush plate (304) is provided with a heating tube (306), and the heating tube (306) is used to improve the fluidity of the hot melt adhesive.

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