An air filter cartridge bonding apparatus and bonding method

Abstract

The application discloses an air filter element bonding equipment, which comprises a base, wherein a driving mechanism and a pressing mechanism are sequentially arranged on the base from top to bottom; the pressing mechanism comprises a table plate fixed on the base, a clamping groove is formed on the table plate, and pressing plates are arranged on the two sides of the clamping groove, so that the two pressing plates can be close to or away from each other; a glue spraying assembly is connected to the driving mechanism, so that the driving mechanism can drive the glue spraying assembly to displace along the length direction of the clamping groove; the glue spraying assembly comprises a support, a motor is fixed on the support, a rotating plate is connected to the output shaft of the motor, supporting plates are formed on the two sides of the rotating plate, and glue spraying heads are fixed on the supporting plates. The bonding equipment can automatically open the butt joint end of filter paper, uniformly apply glue and accurately press.

Description

Technical Field

[0001] This invention relates to the field of filter element processing, and more specifically, to an air filter element bonding device and bonding method. Background Technology

[0002] Air filters are widely used in automotive engine intake systems, industrial dust removal equipment, and indoor air purification devices, with the filter element being their core component. A common filter element structure involves folding flat filter paper into shape, then joining and bonding the two ends together to form a cylindrical or elliptical filter body. End caps are then attached to both ends to complete the filter element. The strength and precision of the bonding at the filter paper joints directly affect the filter element's filtration efficiency, sealing performance, and lifespan.

[0003] Currently, the filter cartridge bonding process is traditionally completed manually or semi-automatically. Operators first butt the two ends of the filter paper, then manually apply adhesive, and finally use clamps to press and fix the butt joints, waiting for the adhesive to cure. Manual adhesive application makes it difficult to ensure uniform adhesive application and inconsistent application locations. Excessive adhesive application can lead to overflow, affecting the filter paper's permeability, while insufficient application results in insufficient bonding strength, severely impacting product quality stability and yield. Furthermore, the butt joints of the filter paper need to be opened outwards before bonding to facilitate adhesive application. In traditional processes, this opening action relies on manual operation, which is time-consuming, labor-intensive, and difficult to control, easily causing filter paper creases or misalignment. The entire bonding process involves multiple steps, including opening, applying adhesive, and pressing, with loose connections between these steps, low automation, and production efficiency that cannot meet the demands of large-scale industrial production.

[0004] In view of the shortcomings of the existing technology, there is an urgent need in the field for an integrated bonding equipment and corresponding bonding method that can automatically open the filter paper joint ends, apply glue evenly and press precisely, so as to improve the stability of filter element bonding quality and production efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide an air filter element bonding device and bonding method, which can realize automatic opening of the filter paper joint ends, uniform glue application and precise pressing.

[0006] To achieve the above objectives, the present invention provides an air filter element bonding device, comprising a base, wherein a driving mechanism and a pressing mechanism are sequentially arranged from top to bottom on the base; the pressing mechanism includes a platform fixed on the base, a slot formed on the platform, and pressure plates respectively arranged on both sides of the slot, allowing the two pressure plates to move closer or further apart; a glue spraying assembly is connected to the driving mechanism, enabling the driving mechanism to drive the glue spraying assembly to move along the length direction of the slot; the glue spraying assembly includes a bracket, a motor fixed on the bracket, a rotating plate connected to the output shaft of the motor, support plates formed on both sides of the rotating plate, and glue spraying heads fixed on the support plates.

[0007] Preferably, a cylinder is fixed on the platform, and the piston rod of the cylinder is connected to the pressure plate.

[0008] Preferably, a groove is formed on the platform, and a slider that mates with the groove is formed on the pressure plate.

[0009] Preferably, the drive mechanism includes a frame fixed on the base, a drive motor disposed in the frame, a lead lever connected to the drive motor, a lead screw nut sleeved on the lead lever, and a connector fixed on the lead screw nut; The lead screw nut can be slidably engaged within the frame body; The connector is connected to the bracket.

[0010] Preferably, a filter element support plate is provided below the pressing mechanism.

[0011] Preferably, the filter element support plate has an arc-shaped structure.

[0012] Preferably, each of the two pressure plates has an elastic buffer layer on one of its opposite surfaces, which is a rubber pad or a sponge pad.

[0013] The present invention also provides a filter element bonding method, wherein the filter element bonding method is performed by the above-mentioned air filter element bonding equipment; S1: Connect the two ends of the filter paper to form a cylindrical filter element, and insert the connected end of the filter element into the slot. At this time, the plate surface direction of the rotating plate is consistent with the length direction of the slot, and the rotating plate is located in the middle of the connected end of the filter paper. S2: Start the motor to drive the rotating plate to rotate, and push the filter paper docking ends outward respectively; S3: Start the drive mechanism to drive the glue spraying assembly to move along the length direction of the slot. As the rotating plate moves, it gradually opens the filter paper joint end completely along the length direction. At the same time, the glue spraying head sprays glue onto the bonding surface of the filter paper joint end. S4: After the glue spraying is completed, the drive mechanism moves the glue spraying assembly out of the slot area, controls the two pressure plates to move closer to each other, presses and bonds the two ends of the glued filter paper, and resets the two pressure plates after a predetermined pressure holding time.

[0014] This invention provides an air filter cartridge bonding device and method. After the filter cartridge is inserted into the slot, a rotating plate rotates to open the joint ends of the filter paper. Simultaneously, a drive mechanism moves the adhesive spraying assembly along the length of the slot, ensuring that the opening and pushing are synchronized with the adhesive spraying. This shortens the bonding cycle and ensures that the adhesive is applied as soon as the bonding surface is exposed, preventing the adhesive from curing or losing its adhesion. After the adhesive spraying is completed, a pressure plate presses the two ends of the glued filter paper tightly and maintains pressure for curing. The slot limit ensures the pressing accuracy, and the pressure-holding design prevents the adhesive layer from springing back and detaching. The compact top-down layout of the equipment allows each process to be completed automatically in sequence, eliminating the need for manual transfer and avoiding the accumulation of positioning errors and the risk of filter paper damage. This invention effectively overcomes the prominent problems of uneven manual adhesive application, easy damage from manual opening, and loose process connections in the prior art, significantly improving the production efficiency, product quality stability, and yield of filter cartridge bonding.

[0015] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the following detailed description to explain the invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a structural diagram of the air filter element bonding device provided by the present invention; Figure 2 This is a side view of the air filter element bonding device provided by the present invention; Figure 3 This is a structural diagram of the adhesive spraying assembly in the air filter element bonding equipment provided by the present invention.

[0017] Explanation of reference numerals in the attached figures 1-Base; 2-Frame; 4-Tablet; 5-Slot; 6-Pressure plate; 7-Cylinder; 8-Filter element support plate; 9-Drive motor; 10-Lead screw nut; 11-Lead lever; 12-Connector; 13-Motor; 14-Bracket; 15-Spray nozzle; 16-Support plate; 17-Rotating plate. Detailed Implementation

[0018] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0019] This invention provides an air filter element bonding device, which includes a base 1. A driving mechanism and a pressing mechanism are sequentially arranged on the base 1 from top to bottom. The pressing mechanism includes a platform 4 fixed to the base 1, with a groove 5 formed on the platform 4. Pressure plates 6 are respectively arranged on both sides of the groove 5, allowing the two pressure plates 6 to move closer or further apart. A glue spraying assembly is connected to the driving mechanism, enabling the driving mechanism to drive the glue spraying assembly to move along the length direction of the groove 5. The glue spraying assembly includes a bracket 14, with a motor 13 fixed on the bracket 14. A rotating plate 17 is connected to the output shaft of the motor 14, and support plates 16 are formed on both sides of the rotating plate 17. A glue spraying head 15 is fixed on the support plate 16. After the filter element is inserted into the slot, the rotating plate rotates to open the joint end of the filter paper. At the same time, the drive mechanism moves the glue spraying assembly along the length of the slot, so that the opening and pushing and the traveling glue spraying are synchronized and parallel. This shortens the bonding cycle and ensures that the glue is applied as soon as the bonding surface is exposed, avoiding glue curing or a decrease in adhesion. After the glue spraying is completed, the pressure plate presses the two ends of the glued filter paper tightly and holds the pressure to cure. The slot limit ensures the pressing accuracy, and the pressure holding design prevents the glue layer from springing back and detaching. The compact top-down layout of the equipment allows each process to be completed automatically in sequence without manual transfer, avoiding the accumulation of positioning errors and the risk of filter paper damage. This invention effectively overcomes the prominent problems of uneven glue application by manual application, easy damage from manual opening, and loose process connection in the prior art, significantly improving the production efficiency, product quality stability, and yield of filter element bonding.

[0020] In a preferred embodiment of the present invention, in order to drive the two pressure plates to open and close, a cylinder 7 is fixed on the platform 4, and the piston rod of the cylinder 4 is connected to the pressure plate 6.

[0021] In a preferred embodiment of the present invention, in order to further limit the displacement of the pressure plate, a groove is formed on the platform 4, and a slider that cooperates with the groove is formed on the pressure plate 6.

[0022] In a preferred embodiment of the present invention, in order to effectively drive the adhesive spraying assembly to reciprocate along the length of the slot, the driving mechanism includes a frame 2 fixed on the base 1, a drive motor 9 disposed in the frame 2, a lead lever 11 connected to the drive motor 9, a lead screw nut 10 sleeved on the lead lever 11, and a connector 12 fixed on the lead screw nut 10; the lead screw nut 10 is slidably engaged in the frame 2; and the connector 12 is connected to the bracket 14.

[0023] In a preferred embodiment of the present invention, in order to support the main body of the filter paper tube after docking, a filter element support plate 8 is provided below the pressing mechanism.

[0024] In a preferred embodiment of the present invention, in order to improve the support effect, the filter element support plate 8 is an arc-shaped structure.

[0025] In a preferred embodiment of the present invention, in order to ensure that the two pressure plates can be pressed tightly together while avoiding damage to the filter paper, an elastic buffer layer is provided on the opposite side surface of the two pressure plates 6, and the elastic buffer layer is a rubber pad or a sponge pad.

[0026] The present invention also provides a filter element bonding method, wherein the filter element bonding method is performed by the above-mentioned air filter element bonding equipment; S1: Connect the two ends of the filter paper to form a cylindrical filter element, and insert the connecting end of the filter element into the slot 5. At this time, the plate surface direction of the rotating plate 17 is consistent with the length direction of the slot 5, and the rotating plate 17 is located in the middle position of the connecting end of the filter paper. S2: Start the motor 13 to drive the rotating plate 17 to rotate, and push the filter paper docking ends outward respectively; S3: Start the drive mechanism to drive the glue spraying assembly to move along the length direction of the slot 5. As the rotating plate 17 moves to gradually fully open the filter paper joint end along the length direction, the glue spraying head 15 sprays glue onto the bonding surface of the filter paper joint end. S4: After the glue spraying is completed, the driving mechanism drives the glue spraying assembly to move out of the slot area, controls the two pressure plates 6 to move closer to each other, presses and bonds the two ends of the glued filter paper, and resets the two pressure plates 6 after a predetermined pressure holding time.

[0027] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0028] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not describe the various possible combinations separately.

[0029] Furthermore, various different embodiments of the present invention can be combined in any way, as long as they do not violate the spirit of the present invention, they should also be regarded as the content disclosed by the present invention.

Claims

1. An air filter cartridge bonding apparatus characterized by, The air filter element bonding device includes a base (1), and the base (1) is provided with a driving mechanism and a pressing mechanism from top to bottom; The pressing mechanism includes a platform (4) fixed on the base (1), a slot (5) is formed on the platform (4), and pressure plates (6) are respectively provided on both sides of the slot (5), so that the two pressure plates (6) can be close to or far apart; The drive mechanism is connected to a glue spraying component, which enables the drive mechanism to drive the glue spraying component to move along the length direction of the slot (5); The glue spraying assembly includes a bracket (14), on which a motor (13) is fixed. A rotating plate (17) is connected to the output shaft of the motor (14). Support plates (16) are formed on both sides of the rotating plate (17), and glue spraying heads (15) are fixed on the support plates (16).

2. The air filter element bonding equipment according to claim 1, characterized in that, A cylinder (7) is fixed on the platform (4), and the piston rod of the cylinder (4) is connected to the pressure plate (6).

3. The air filter element bonding equipment according to claim 2, characterized in that, A groove is formed on the platform (4), and a slider that cooperates with the groove is formed on the pressure plate (6).

4. The air filter element bonding equipment according to claim 1, characterized in that, The drive mechanism includes a frame (2) fixed on the base (1), a drive motor (9) installed in the frame (2), a lead lever (11) connected to the drive motor (9), a lead screw nut (10) sleeved on the lead lever (11), and a connector (12) fixed on the lead screw nut (10). The lead screw nut (10) is slidably engaged within the frame (2); The connector (12) is connected to the bracket (14).

5. The air filter element bonding equipment according to claim 1, characterized in that, A filter element support plate (8) is provided below the pressing mechanism.

6. The air filter element bonding equipment according to claim 5, characterized in that, The filter element support plate (8) has an arc-shaped structure.

7. The air filter element bonding equipment according to claim 1, characterized in that, Both pressure plates (6) have an elastic buffer layer on their opposite side surfaces, which is a rubber pad or a sponge pad.

8. A filter element bonding method, characterized in that, The filter element bonding method is performed by the air filter element bonding equipment according to any one of claims 1-7; S1: Connect the two ends of the filter paper to form a cylindrical filter element, and insert the connecting end of the filter element into the slot (5). At this time, the plate surface direction of the rotating plate (17) is consistent with the length direction of the slot (5), and the rotating plate (17) is located in the middle position of the connecting end of the filter paper. S2: Start the motor (13) to drive the rotating plate (17) to rotate, and push the filter paper docking ends outward respectively; S3: Start the drive mechanism to drive the glue spraying assembly to move along the length direction of the slot (5). As the rotating plate (17) moves to gradually open the filter paper joint end completely along the length direction, the glue spraying head (15) sprays glue onto the bonding surface of the filter paper joint end. S4: After the glue spraying is completed, the drive mechanism drives the glue spraying assembly to move out of the slot area, controls the two pressure plates (6) to move closer to each other, presses and bonds the two ends of the glued filter paper, and resets the two pressure plates (6) after a predetermined pressure holding time.

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