A filter device for an adhesive before filling

Abstract

The application provides a filter device before adhesive filling, which comprises a base frame, a filtering mechanism arranged on the base frame, and a buffer tank arranged on the filtering mechanism. The filtering mechanism comprises a filtering cylinder, a feeding port arranged at one end of the filtering cylinder, a discharging port arranged at the other end of the filtering cylinder, a filtering screen group arranged in the filtering cylinder and arranged above the discharging port, and a pressurizing assembly arranged at the end of the filtering cylinder close to the feeding port. The buffer tank contains the filtered adhesive. The pressurizing assembly can pressurize the adhesive in the filtering screen group. The filtering speed and the filtering efficiency of the adhesive can be improved by arranging the filtering screen group to be detachably arranged in the filtering cylinder and arranging the pressurizing assembly in the filtering cylinder. After the filtering of the adhesive is completed, the filtering screen group can be directly taken out of the filtering cylinder and cleaned, so that the dismounting and cleaning steps are obviously simplified and the operation is not interrupted. The filter device has the advantages of simple structure, low maintenance cost, high product quality stability, and convenience for popularization and implementation.

Description

Technical Field

[0001] This application belongs to the field of adhesive production technology, specifically relating to a filtration device before adhesive filling. Background Technology

[0002] In existing technologies, filtration devices before adhesive filling are crucial for ensuring product quality. During adhesive preparation, the raw materials are prone to agglomeration during mixing, forming undispersed particles. If these particles are directly filled, it will reduce the uniformity of adhesive application, clog the coating equipment, and reduce adhesion performance, thereby reducing the quality stability of downstream products. Therefore, filtration devices are essential for intercepting these particles.

[0003] However, existing filter components have significant drawbacks. Common filter components consist of a housing and a filter screen. Due to the high viscosity of the adhesive, flow resistance is high during filtration, resulting in low filtration efficiency and making them unsuitable for mass production. Furthermore, the high-viscosity adhesive easily adheres to solid particles, quickly clogging the filter pores, exacerbating the low filtration efficiency, and leading to low filtration rates and excessive filter screen residue, resulting in filtration losses and increased costs. In addition, the existing filter component structure is unreasonable. After adhesive filtration, solid impurities often adhere to the filter pores, requiring cleaning of the filter component before continued use. However, traditional filter component assembly structures are complex, and disassembly and assembly are time-consuming and complicated, leading to filtration interruptions and failing to meet the demands of continuous industrial production.

[0004] Therefore, improvements are urgently needed to enhance adhesive filling efficiency and meet the demands of continuous industrial production. Utility Model Content

[0005] This application addresses the technical problem in the prior art where solid particles easily clog the filter mesh during the use of adhesive filtration devices, but traditional filter components have complex structures, cumbersome disassembly and assembly steps, and long disassembly, cleaning, and maintenance times, which cannot meet the needs of continuous industrial production. The application proposes a filtration device for adhesives before filling.

[0006] This application adopts the following solution: a filtration device before adhesive filling, including a base frame, a filtration mechanism disposed on the base frame, and a buffer tank disposed on the filtration mechanism. The buffer tank is used to contain the adhesive filtered by the filtration mechanism. The filtration mechanism includes a filter cylinder, an inlet disposed at one end of the filter cylinder, an outlet disposed at the other end of the filter cylinder, a filter screen assembly detachably disposed inside the filter cylinder and mounted above the outlet, and a pressurizing component disposed at one end of the filter cylinder near the inlet. When the adhesive enters the filter screen assembly, the pressurizing component is used to apply pressure to the adhesive.

[0007] In some feasible embodiments, the filter cylinder is provided with a supporting flange at one end near the discharge port, and the filter screen assembly includes an outer screen cylinder mounted on the supporting flange and an inner screen body sleeved on the outer screen cylinder. The outer screen cylinder is made of metal, and the inner screen body is made of flexible material.

[0008] In some feasible embodiments, the mesh size of the outer mesh cylinder is defined as X, and the mesh size of the inner mesh body is defined as Y. X and Y satisfy the following relationship: 8mm≤X≤20mm, 0.5mm≤Y≤2mm.

[0009] In some feasible embodiments, the outer mesh cylinder is made of stainless steel or titanium alloy, and the inner mesh body is made of any one of polytetrafluoroethylene, nylon, polypropylene, and glass fiber.

[0010] In some feasible embodiments, the inner mesh body includes a filter body and a fastening part disposed at the opening of the filter body. When the inner mesh body is sleeved on the outer mesh cylinder, the filter body is fixed to the outer mesh cylinder by the fastening part.

[0011] In some feasible embodiments, a hook is also provided at the opening of the outer mesh cylinder. When the inner mesh body is fitted onto the outer mesh cylinder, the inner mesh body can be hooked onto the hook to restrict the inner mesh body from moving away from the outer mesh cylinder.

[0012] In some feasible embodiments, the pressurizing assembly includes a drive assembly disposed on the base frame, and a pressurizing piston with one end disposed on the drive assembly and the other end disposed inside the filter cartridge, the drive assembly being used to drive the pressurizing piston to move along the height direction of the filter cartridge.

[0013] In some feasible embodiments, the drive assembly includes telescopic rods disposed on both sides of the base frame, a linkage frame disposed between the two telescopic rods, and a connection hole disposed on the linkage frame.

[0014] In some feasible embodiments, the pressurizing piston includes a piston body and a piston rod disposed on the piston body, the outer wall of the piston body is in contact with the inner wall of the filter cartridge, and the end of the piston rod away from the piston body is matched and disposed in the connecting hole.

[0015] In some feasible embodiments, the pressurizing piston further includes a pressure relief hole on the piston body and a sealing plug matched in the pressure relief hole, the sealing plug being interference-fitted with the pressure relief hole.

[0016] Compared with the prior art, this application has the following beneficial effects:

[0017] This application provides a filtration device for adhesives before filling, comprising a base frame, a filtration mechanism mounted on the base frame, and a buffer tank mounted on the filtration mechanism. The filtration mechanism includes a filter cylinder, an inlet at one end of the filter cylinder, an outlet at the other end, a filter screen assembly disposed inside the cylinder and mounted above the outlet, and a pressurizing component disposed at the end of the filter cylinder near the inlet. The buffer tank contains the filtered adhesive, and the pressurizing component can apply pressure to the adhesive within the filter screen assembly. By detachably mounting the filter screen assembly inside the filter cylinder and installing the pressurizing component inside the filter cylinder, this application can improve the filtration speed and efficiency of the adhesive. After the adhesive is filtered, the filter screen assembly can be directly extracted from the filter cylinder for cleaning, significantly simplifying the disassembly and cleaning steps and avoiding operational interruptions. It has the advantages of simple structure, low maintenance cost, high product quality stability, and ease of promotion and implementation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a filtration device before adhesive filling according to this application;

[0019] Figure 2 This is a top view of a filtration device for adhesive filling according to this application;

[0020] Figure 3 This application Figure 2 Sectional view at point AA;

[0021] Figure 4 This application Figure 3 A magnified view of a section at point A in the middle;

[0022] Figure 5 This is a schematic diagram of the internal network structure of this application;

[0023] Figure 6 This application is for the removal of the internal network structure after Figure 3 A magnified view of a section at point A in the middle;

[0024] Figure 7 This application Figure 2 Sectional view at point BB;

[0025] Figure 8 This application Figure 7 A magnified view of a section at point B in the middle;

[0026] Figure 9 This is a schematic diagram of the assembly structure of the filtering mechanism in this application;

[0027] Figure 10 This is a schematic diagram of the structure of a filtration device for adhesive filling under the present application in its operational state. Detailed Implementation

[0028] Combination Figures 1 to 10 The following content further illustrates the technical solution proposed in this application. This application adopts the following technical solution: a filtration device before adhesive filling, comprising a base frame 1, a filtration mechanism 2 disposed on the base frame 1, and a buffer tank 3 disposed on the filtration mechanism 2. The buffer tank 3 is used to contain the adhesive filtered by the filtration mechanism 2. The filtration mechanism 2 includes a filter cylinder 20, an inlet 21 disposed at one end of the filter cylinder 20, an outlet 22 disposed at the other end of the filter cylinder 20, a filter screen assembly 23 detachably disposed inside the filter cylinder 20 and mounted above the outlet 22, and a pressurizing component 24 disposed at one end of the filter cylinder 20 near the inlet 21. When the adhesive enters the filter screen assembly 23, the pressurizing component 24 applies pressure to the adhesive.

[0029] This application provides a filtration device for adhesives before filling, comprising a base frame, a filtration mechanism mounted on the base frame, and a buffer tank mounted on the filtration mechanism. The filtration mechanism includes a filter cylinder, an inlet at one end of the filter cylinder, an outlet at the other end, a filter screen assembly disposed inside the cylinder and mounted above the outlet, and a pressurizing component disposed at the end of the filter cylinder near the inlet. The buffer tank contains the filtered adhesive, and the pressurizing component can apply pressure to the adhesive within the filter screen assembly. By detachably mounting the filter screen assembly inside the filter cylinder and installing the pressurizing component inside the filter cylinder, this application can improve the filtration speed and efficiency of the adhesive. After the adhesive is filtered, the filter screen assembly can be directly extracted from the filter cylinder for cleaning, significantly simplifying the disassembly and cleaning steps and avoiding operational interruptions. It has the advantages of simple structure, low maintenance cost, high product quality stability, and ease of promotion and implementation.

[0030] In actual implementation, the adhesive to be filtered is transported to the inlet 21 of the filter mechanism 2 through a pipeline. When the adhesive enters the filter cylinder 20 and contacts the filter screen assembly 23, the pressurizing component 24 located at the end of the filter cylinder 20 near the inlet 21 is activated. The pressurizing component can apply a stable pressure to the adhesive in the filter cylinder 20 (the pressure value can be adjusted according to the viscosity of the adhesive, generally controlled between 0.2MPa and 0.5MPa). Under pressure, the adhesive will accelerate its penetration into the filter pores of the filter screen assembly 23. The finished adhesive that meets the filling requirements can pass through the filter pores, while impurities in the adhesive (such as agglomerates, solidified particles, dust, fibers, etc.) are trapped inside the filter screen assembly 23. The finished adhesive that has passed through the filter screen assembly 23 will flow out from the outlet 22 at the other end of the filter cylinder 20. The outlet 22 is connected to the inlet end of the buffer tank 3 through a pipeline, and the finished adhesive directly enters the interior of the buffer tank 3.

[0031] In actual implementation, a sealing gasket is provided between the outer mesh cylinder and the supporting flange to seal the gap between the outer mesh cylinder and the supporting flange.

[0032] Furthermore, the volume of the buffer tank 3 is matched with the conveying flow rate of the filling pump in the subsequent section (usually the filling volume of 10-15 minutes at the maximum conveying flow rate of the filling pump); when the filter mechanism 2 experiences a discharge interruption due to short-term maintenance, the finished adhesive in the buffer tank 3 can continue to supply material to the filling equipment to avoid interruption of the filling operation and ensure continuous large-volume filling operations.

[0033] Furthermore, when cleaning the filter assembly 23 is required, maintenance personnel can first remove the pressurizing component from the top of the filter cylinder, then pull the filter assembly 23 out of the filter cylinder 20 and clean it. During the cleaning process, spare filter assemblies can be reassembled into the filter cylinder to ensure continuous mass production. Compared to traditional welded or flange-connected filter assemblies (which require disassembling multiple bolts and resealing after cleaning), this solution significantly shortens the disassembly and maintenance time, avoiding production interruptions due to maintenance.

[0034] In this embodiment, the filter cylinder 20 is provided with a support flange 25 at one end near the discharge port 22. The filter screen group 23 includes an outer screen cylinder 26 mounted on the support flange 25 and an inner screen body 27 sleeved on the outer screen cylinder 26. The outer screen cylinder 26 is made of metal and the inner screen body 27 is made of flexible material.

[0035] In this embodiment, the mesh size of the outer mesh cylinder 26 is defined as X, and the mesh size of the inner mesh body 27 is defined as Y. X and Y satisfy the following relationship: 8mm≤X≤20mm, 0.5mm≤Y≤2mm.

[0036] In actual implementation, the mesh size of the outer mesh cylinder and the mesh size of the inner mesh body can be selected according to the type of adhesive actually produced;

[0037] For example, the values ​​of X are 8mm, 9mm, 10mm, 11mm, 12mm, 15mm, 16mm, 17mm, 19mm, and 20mm; and the values ​​of Y are 0.5mm, 0.9mm, 1.2mm, 1.5mm, and 2mm.

[0038] In this embodiment, the outer mesh cylinder 26 is made of stainless steel or titanium alloy, and the inner mesh body 27 is made of any one of polytetrafluoroethylene, nylon, polypropylene, or glass fiber.

[0039] In actual implementation, the outer mesh cylinder 26 is made of stainless steel, and the inner mesh body 27 is made of nylon.

[0040] In actual implementation, the inner wall of the filter cylinder 20 near the discharge port 22 has an integrally formed support flange 25, which forms a ring-shaped support platform. When the outer mesh cylinder 26 is placed into the filter cylinder 20, the bottom edge of the outer mesh cylinder 26 can be directly mounted on the support flange 25, achieving initial positioning without additional fixing components. When the filter assembly 23 needs cleaning, maintenance personnel can remove the pressurizing component and directly lift the outer mesh cylinder 26 upwards. This process allows for easy removal of the outer mesh cylinder 26 without disassembling bolts or clips. After removal, the flexible inner mesh body 27 fitted onto the outer mesh cylinder 26 can be directly peeled off, and both can be cleaned separately. After cleaning the filter assembly, simply put the inner mesh body 27 back onto the outer mesh cylinder 26, align the bottom of the outer mesh cylinder with the support flange 25, and place it into the filter cylinder 20 to complete the assembly. The entire process is convenient and requires no professional tools.

[0041] In this embodiment, the inner mesh body 27 includes a filter body 270 and a fastening part 271 provided at the opening of the filter body 270. When the inner mesh body 27 is sleeved on the outer mesh cylinder 26, the filter body 270 is fixed to the outer mesh cylinder 26 by the fastening part 271.

[0042] In this embodiment, a hook 28 is provided at the opening of the outer mesh cylinder 26. When the inner mesh body 27 is sleeved on the outer mesh cylinder 26, the inner mesh body 27 can be hooked onto the hook 28 to restrict the inner mesh body 27 from moving away from the outer mesh cylinder 26.

[0043] In actual implementation, the filter body 270 of the inner mesh body 27 is a cylindrical structure. The tightening part 271 at its opening is made of elastic material (such as silicone elastic rope), and the height of the inner mesh body is greater than the height of the outer mesh cylinder. After the filter body 270 is completely fitted inside the inner wall of the outer mesh cylinder 26, the operator folds the inner mesh body towards the outer wall of the outer mesh cylinder so that the tightening part 271 is tightened along the outer wall of the opening end of the outer mesh cylinder 26, thereby tightly fixing the opening end of the filter body 270 to the outer mesh cylinder 26. Since the tightening part 271 is made of elastic material, when it is tightened to the outer wall of the outer mesh cylinder 26, the tightening part 271 can be locked in the hook part to achieve secondary fixation of the inner mesh body. When it is necessary to remove the inner mesh body from the outer mesh cylinder, the operator can first pull the tightening part 271 down away from the hook part, and after opening the tightening part 271, the inner mesh body can be pulled out from the outer mesh cylinder.

[0044] In this embodiment, the pressurizing component 24 includes a driving component 240 disposed on the base frame 1, and a pressurizing piston 241 with one end disposed on the driving component 240 and the other end disposed in the filter cylinder 20. The driving component 240 is used to drive the pressurizing piston 241 to move along the height direction of the filter cylinder 20.

[0045] In this embodiment, the drive assembly 240 includes telescopic rods 242 disposed on both sides of the base frame 1, a linkage frame 243 mounted between the two telescopic rods 242, and a connection hole 244 disposed on the linkage frame 243.

[0046] In this embodiment, the pressurizing piston 241 includes a piston body 245 and a piston rod 246 disposed on the piston body 245. The outer wall of the piston body 245 is in contact with the inner wall of the filter cartridge 20, and the end of the piston rod 246 away from the piston body 245 is matched and disposed in the connecting hole 244.

[0047] In actual implementation, the telescopic rod 242 is usually a pneumatic, hydraulic, or electric telescopic rod. The linkage frame 243, installed between the two telescopic rods 242, integrates and synchronously transmits the power of the two telescopic rods. When the two telescopic rods extend or retract synchronously, the linkage frame 243 will move smoothly along the height direction (vertical direction) of the filter cylinder 20 with the movement of the telescopic rods, avoiding tilting caused by uneven driving force on one side.

[0048] In actual implementation, the piston body 245 of the pressurizing piston 241 is made of rubber or polyurethane, and the outer wall of the piston body 245 is provided with an annular sealing groove. An O-ring is embedded in the sealing groove. The outer wall of the piston body 245 is tightly fitted with the inner wall of the filter cylinder 20 to form a sealed space (the area from below the piston body to above the filter screen group inside the filter cylinder is the sealed pressurizing zone). When the linkage frame 243 drives the piston rod 246 to move downward, the piston body 245 moves downward along the inner wall of the filter cylinder 20 synchronously with the piston rod, squeezing the adhesive in the sealed pressurizing zone, so that the adhesive can penetrate into the filter screen group more quickly, thereby achieving pressurized filtration.

[0049] In this embodiment, the pressurizing piston 241 further includes a pressure relief hole 247 provided on the piston body 245, and a sealing plug 248 matched and provided in the pressure relief hole 247, wherein the sealing plug 248 is interference-fitted with the pressure relief hole 247.

[0050] In actual implementation, when the sealing plug is inserted into the pressure relief hole, the elastic sealing plug will deform due to compression, tightly fitting the inner wall of the pressure relief hole to form a completely sealed structure. This prevents the high-pressure adhesive inside the filter cartridge from leaking out of the pressure relief hole, ensuring that the pressure generated when the piston body 245 moves downward can be fully applied to the adhesive, thus guaranteeing filtration efficiency.

[0051] Furthermore, when continuous large-scale pressurized filtration is required, the sealing plug can be removed from the pressure relief hole, and the feeding pipeline can be directly inserted into the pressure relief hole for feeding. This eliminates the need to repeatedly remove the pressurization components, thus enabling continuous large-scale production.

[0052] This application provides a filtration device for adhesives before filling, comprising a base frame, a filtration mechanism mounted on the base frame, and a buffer tank mounted on the filtration mechanism. The filtration mechanism includes a filter cylinder, an inlet at one end of the filter cylinder, an outlet at the other end, a filter screen assembly disposed inside the cylinder and mounted above the outlet, and a pressurizing component disposed at the end of the filter cylinder near the inlet. The buffer tank contains the filtered adhesive, and the pressurizing component can apply pressure to the adhesive within the filter screen assembly. By detachably mounting the filter screen assembly inside the filter cylinder and installing the pressurizing component inside the filter cylinder, this application can improve the filtration speed and efficiency of the adhesive. After the adhesive is filtered, the filter screen assembly can be directly extracted from the filter cylinder for cleaning, significantly simplifying the disassembly and cleaning steps and avoiding operational interruptions. It has the advantages of simple structure, low maintenance cost, high product quality stability, and ease of promotion and implementation.

[0053] The embodiments provided by this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A filtration device for adhesives before filling, characterized in that, The device includes a base frame (1), a filter mechanism (2) disposed on the base frame (1), and a buffer tank (3) disposed on the filter mechanism (2). The buffer tank (3) is used to contain the adhesive filtered by the filter mechanism (2). The filter mechanism (2) includes a filter cylinder (20), an inlet (21) disposed at one end of the filter cylinder (20), an outlet (22) disposed at the other end of the filter cylinder (20), a filter screen assembly (23) detachably disposed inside the filter cylinder (20) and mounted above the outlet (22), and a pressurizing assembly (24) disposed at one end of the filter cylinder (20) near the inlet (21). When the adhesive enters the filter screen assembly (23), the pressurizing assembly (24) is used to apply pressure to the adhesive.

2. The filtration device before adhesive filling according to claim 1, characterized in that, The filter cylinder (20) has a support flange (25) at one end near the discharge port (22). The filter screen assembly (23) includes an outer screen cylinder (26) mounted on the support flange (25) and an inner screen body (27) sleeved on the outer screen cylinder (26). The outer screen cylinder (26) is made of metal, and the inner screen body (27) is made of flexible material.

3. The filtration device before adhesive filling according to claim 2, characterized in that, The mesh size of the outer mesh cylinder (26) is defined as X, and the mesh size of the inner mesh body (27) is defined as Y. X and Y satisfy the following relationship: 8mm≤X≤20mm, 0.5mm≤Y≤2mm.

4. The filtration device before adhesive filling according to claim 2, characterized in that, The outer mesh cylinder (26) is made of stainless steel or titanium alloy, and the inner mesh body (27) is made of any one of polytetrafluoroethylene, nylon, polypropylene, or glass fiber.

5. A filtration device for adhesive filling according to claim 2, characterized in that, The inner mesh body (27) includes a filter body (270) and a fastening part (271) provided at the opening of the filter body (270). When the inner mesh body (27) is sleeved on the outer mesh cylinder (26), the filter body (270) is fixed to the outer mesh cylinder (26) by the fastening part (271).

6. A filtration device for adhesive filling according to claim 2, characterized in that, It also includes a hook (28) provided at the opening of the outer mesh cylinder (26). When the inner mesh body (27) is fitted onto the outer mesh cylinder (26), the inner mesh body (27) can be hooked onto the hook (28) to restrict the inner mesh body (27) from moving away from the outer mesh cylinder (26).

7. The filtration device before adhesive filling according to claim 1, characterized in that, The pressurizing assembly (24) includes a drive assembly (240) disposed on the base frame (1) and a pressurizing piston (241) with one end disposed on the drive assembly (240) and the other end disposed in the filter cylinder (20). The drive assembly (240) is used to drive the pressurizing piston (241) to move along the height direction of the filter cylinder (20).

8. A filtration device for adhesive filling according to claim 7, characterized in that, The drive assembly (240) includes telescopic rods (242) on both sides of the base frame (1), a linkage frame (243) between the two telescopic rods (242), and a connection hole (244) on the linkage frame (243).

9. A filtration device for adhesive filling according to claim 8, characterized in that, The pressurizing piston (241) includes a piston body (245) and a piston rod (246) disposed on the piston body (245). The outer wall of the piston body (245) is in contact with the inner wall of the filter cartridge (20), and one end of the piston rod (246) away from the piston body (245) is matched and disposed in the connecting hole (244).

10. A filtration device for adhesive filling according to claim 9, characterized in that, The pressurized piston (241) also includes a pressure relief hole (247) provided on the piston body (245) and a sealing plug (248) matched and provided in the pressure relief hole (247), the sealing plug (248) and the pressure relief hole (247) being interference fit.

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