An extrusion positioning jig for the production of automotive air conditioner filters and its usage method

Abstract

The present invention discloses an extrusion type positioning fixture for the production of automotive air conditioner filters and a usage method thereof, including a positioning mechanism. The positioning mechanism is provided with a first limiting component and a second limiting component. A lifting component is arranged between the first limiting component and the second limiting component, and an extrusion bar is arranged on the lifting component. Sliding mechanisms are arranged on both the first limiting component and the second limiting component. Each sliding mechanism is provided with a rotatable extrusion plate. The second limiting component displaces towards the second limiting component through the lifting component, so that the upper extrusion plate displaces towards the lower extrusion plate to position the air conditioner filter. Through the above two sets of upper and lower extrusion plates, when edging the air conditioner filter, the rotation of the extrusion plate facilitates the edge strip to wind around the periphery of the air conditioner filter, thereby quickly completing the edging operation around the air conditioner filter and improving production efficiency.

Description

Technical Field

[0001] The present invention relates to an extrusion positioning jig for the production of automotive air-conditioning filter elements and a usage method thereof. Background Art

[0002] In the prior art, the production of automotive air-conditioning filter elements requires pasting four edges. Pasting the four edges can keep the filter screen in shape, prevent it from deforming or being damaged, thereby ensuring its good usage effect. In addition, the four edges also help to prevent burrs on the filter element and provide a more comfortable usage experience.

[0003] For example, the Chinese patent with the publication number CN216733852U in the prior art discloses a two-way extrusion type intelligent positioning jig for automotive air-conditioning filter elements, belonging to the technical field of air-conditioning filter elements. It includes a fixing plate, and a positioning block is installed at the center of the top outer wall of the fixing plate through bolts. The edge-pasting assembly includes a main edge-pasting block, a secondary edge-pasting block, two mounting plates, two moving rods, two limiting sleeves, two pulling rods, two sliding sleeves, two limiting tubes and two bases. The main edge-pasting block and the secondary edge-pasting block are respectively slidably embedded on both sides of the top outer wall of the fixing plate. In this solution, through the edge-pasting assembly, preliminary positioning of the sealing strip can be achieved, and by using the pulling rod, the glue-coated sides of the two sealing strips can be stably adhered to the specified positions on the outer wall of the air-conditioning filter element. Using this bonding method can avoid problems such as bulging and depression of the sealing strip caused by uneven force, ensure the structural strength of the bonding, and improve work efficiency at the same time.

[0004] However, during the use of the above solution, it is inconvenient to perform edge-pasting treatment on the four sides of the air-conditioning filter element quickly. In view of this, the present invention provides an extrusion positioning jig for the production of automotive air-conditioning filter elements and a usage method thereof to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide an extrusion positioning jig for the production of automotive air-conditioning filter elements and a usage method thereof to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] An extrusion positioning jig for the production of automotive air-conditioning filter elements includes a positioning mechanism. The positioning mechanism is provided with a first limiting component and a second limiting component. An elevating component is arranged between the first limiting component and the second limiting component, and an extrusion strip is arranged on the elevating component;

[0008] Sliding mechanisms are arranged on both the first limiting component and the second limiting component. Each sliding mechanism is provided with a rotatable extrusion plate. The second limiting component displaces towards the first limiting component through the elevating component, so that the upper extrusion plate displaces towards the lower extrusion plate to position the air-conditioning filter element.

[0009] As an improvement of the above technical solution, the first limiting component includes a first limiting housing, a first limiting groove is arranged in the first limiting housing, and a first limiting spring is arranged in the first limiting groove;

[0010] The sliding mechanism on the first limiting component is slidably arranged in the first limiting groove, the sliding mechanism is also in contact with the first limiting spring, fixing plates are arranged at both ends of the first limiting housing, and multiple groups of fixing holes are formed in the fixing plates.

[0011] As an improvement of the above technical solution, the second limiting component includes a second limiting housing, a second limiting groove is arranged in the second limiting housing, and a second limiting spring is arranged in the second limiting groove;

[0012] The sliding mechanism on the second limiting component is slidably arranged in the second limiting groove, and the sliding mechanism is in contact with the second limiting spring.

[0013] As an improvement of the above technical solution, the lifting component includes a lifting cylinder, a lifting rod is slidably arranged in the lifting cylinder, the lifting rod is also rotatably arranged in the lifting cylinder, and an extrusion strip is arranged on the lifting cylinder;

[0014] The lifting cylinder is connected to the first limiting housing, and the lifting rod is connected to the second limiting housing.

[0015] As an improvement of the above technical solution, a through vertical through groove is formed in the lifting cylinder, and a communicating placement through groove is arranged on the vertical through groove;

[0016] An activity rod is arranged on the lifting rod, the activity rod moves up and down in the vertical through groove to lift the second limiting component, and the activity rod rotates in the placement through groove to rotate the second limiting component.

[0017] As an improvement of the above technical solution, the sliding mechanism includes a connecting sleeve, the connecting sleeve is connected to an extrusion plate, sliding blocks are rotatably arranged on the connecting sleeve, and two groups of sliding blocks slide in the first limiting groove and the second limiting groove respectively.

[0018] Multiple groups of balls are arranged on the sliding block, and a positioning rod is also arranged on the sliding block, and the positioning rod is arranged towards the direction of the extrusion strip.

[0019] As an improvement of the above technical solution, a connecting column is arranged on the extrusion plate;

[0020] Multiple groups of first connecting holes are formed in the connecting sleeve, multiple groups of second connecting holes are formed in the connecting column, and the first connecting holes and the second connecting holes are connected by bolts.

[0021] As an improvement of the above technical solution, a plurality of positioning plates are arranged on the extrusion plate;

[0022] The positioning plates on the two extrusion plates are arranged staggeredly. Each group of positioning plates on the upper extrusion plate is arranged between every two groups of positioning plates on the lower extrusion plate, so that the upper positioning plate does not contact the lower positioning plate when it descends.

[0023] A usage method of an extrusion type positioning jig for producing an automotive air filter element includes the following steps:

[0024] S1: Lifting and separating:

[0025] Lift the second limiting component, so that the movable rod displaces in the vertical through groove and rotates in the placing through groove, so that the upper extrusion plate and the lower extrusion plate are staggered;

[0026] S2: Filter element placement:

[0027] Open the filter element and place it on the lower extrusion plate. At the same time, make the multiple groups of positioning plates on the lower extrusion plate extend into the folding gaps of the filter element;

[0028] S3: Descending and extruding:

[0029] Make the movable rod rotate in the placing through groove until the movable rod extends into the vertical through groove and descends in the vertical through groove, so that the upper extrusion plate displaces towards the lower extrusion plate, and make the upper extrusion plate and the lower extrusion plate align. At the same time, after the displacement is completed, the multiple groups of positioning plates on the upper extrusion plate extend into the folding gaps of the filter element;

[0030] S4: Rotating and edging:

[0031] Dial the two extrusion plates to rotate, and during the rotation process, apply glue to the four sides of the filter element, and sequentially wind the edge strips around the four sides of the filter element for the edging process;

[0032] S5: Sliding extrusion:

[0033] Push the two extrusion plates so that the extrusion plates displace towards the extrusion strip, so that the filter element with the edging completed in S4: Rotating and edging contacts the extrusion strip, and repeat this step until all four sides of the filter element contact the extrusion strip, improving the connection stability between the edge strip and the filter element;

[0034] S6: Lifting and discharging:

[0035] After all four sides of the filter element contact the extrusion strip in S5: Sliding extrusion, the first limiting spring and the second limiting spring reset the two extrusion plates, and repeat S1: Lifting and separating, and manually remove the filter element with the edging completed on the lower extrusion plate.

[0036] Compared with the prior art, the beneficial effects of the present invention are:

[0037] When limiting the air-conditioning filter element, the second limiting component is lifted by the lifting component, and the second limiting component is rotated by the lifting component, so that the upper pressing plate and the lower pressing plate are staggered. Then, the air-conditioning filter element is opened and placed on the lower pressing plate, and the upper pressing plate is reset. After the reset of the upper pressing plate is completed, the upper pressing plate presses the filter element on the lower pressing plate; then, the pressing plate is rotated to apply glue to the four sides of the air-conditioning filter element, and after the glue application is completed, edging is carried out. Then, the four end faces of the air-conditioning filter element are sequentially contacted with the extrusion strip to complete the edging process;

[0038] Through the above-mentioned upper and lower sets of pressing plates, when edging the air-conditioning filter element, the rotation of the pressing plate facilitates the edge strip to wind around the four sides of the air-conditioning filter element, so that the edging operation around the air-conditioning filter element can be quickly completed, improving production efficiency;

[0039] Through the above-mentioned upper and lower sets of pressing plates, when edging the air-conditioning filter element, the stability of the air-conditioning filter element can be ensured, preventing the air-conditioning filter element from shifting during the edging process and affecting the edging quality. Brief Description of the Drawings

[0040] Figure 1 It is a schematic structural diagram of the present invention;

[0041] Figure 2 It is a schematic structural diagram of the first limiting component of the present invention;

[0042] Figure 3 It is a schematic structural diagram of the second limiting component of the present invention;

[0043] Figure 4 It is a schematic structural diagram of the sliding mechanism of the present invention;

[0044] Figure 5 It is a schematic structural diagram of the pressing plate of the present invention;

[0045] Figure 6 It is a schematic diagram of the positions of the two sets of pressing plates of the present invention.

[0046] In the figure: 10, fixing plate; 11, fixing hole; 20, positioning mechanism; 21, first limiting assembly; 211, first limiting shell; 212, first limiting slot; 213, first limiting spring; 22, lifting assembly; 221, lifting cylinder; 222, vertical through slot; 223, placement through slot; 224, lifting rod; 225, movable rod; 23, second limiting assembly; 231, second limiting shell; 232, second limiting spring; 233, second limiting slot; 30, sliding mechanism; 31, connecting sleeve; 32, first connecting hole; 33, sliding block; 34, ball; 35, positioning rod; 40, extrusion plate; 41, positioning plate; 42, connecting column; 43, second connecting hole; 50, extrusion strip. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0048] Example:

[0049] like Figures 1-6 As shown, this embodiment proposes an extrusion type positioning fixture for automobile air conditioning filter production, including a positioning mechanism 20, wherein the positioning mechanism 20 is provided with a first limiting component 21 and a second limiting component 23, a lifting component 22 is provided between the first limiting component 21 and the second limiting component 23, and an extrusion strip 50 is provided on the lifting component 22;

[0050] The first limiting assembly 21 and the second limiting assembly 23 are both provided with a sliding mechanism 30, and each set of the sliding mechanism 30 is provided with a rotatable extrusion plate 40. The second limiting assembly 23 is displaced toward the first limiting assembly 21 through the lifting assembly 22, so that the upper extrusion plate 40 is displaced toward the lower extrusion plate 40 to position the air conditioning filter.

[0051] In this embodiment, when the air conditioning filter element is limited, the second limiting assembly 23 is lifted by the lifting assembly 22, and the second limiting assembly 23 is rotated by the lifting assembly 22, so that the upper extrusion plate 40 is staggered with the lower extrusion plate 40, and then the air conditioning filter element is opened and placed on the lower extrusion plate 40, and the upper extrusion plate 40 is reset. After the upper extrusion plate 40 is reset, the upper extrusion plate 40 squeezes the filter element on the lower extrusion plate 40;

[0052] After that, the rotating extrusion plate 40 applies glue to the four sides of the air conditioner filter element, and after the glue application is completed, edge pasting is carried out. Then, the four end faces of the air conditioner filter element are successively brought into contact with the extrusion strip 50 to complete the edge pasting process;

[0053] Through the upper and lower sets of extrusion plates 40 arranged as described above, when edge pasting the air conditioner filter element, the rotation of the extrusion plate 40 facilitates the winding of the edge strip around the four sides of the air conditioner filter element, so that the edge pasting operation around the air conditioner filter element can be quickly completed, improving production efficiency;

[0054] Through the upper and lower sets of extrusion plates 40 arranged as described above, when edge pasting the air conditioner filter element, the stability of the air conditioner filter element can be ensured, preventing the air conditioner filter element from shifting during the edge pasting process and affecting the quality of edge pasting.

[0055] Specifically, the first limiting component 21 includes a first limiting housing 211, a first limiting groove 212 is arranged inside the first limiting housing 211, and a first limiting spring 213 is arranged in the first limiting groove 212;

[0056] The sliding mechanism 30 on the first limiting component 21 is slidably arranged in the first limiting groove 212, and the sliding mechanism 30 is also in contact with the first limiting spring 213. Fixing plates 10 are arranged at both ends of the first limiting housing 211, and multiple groups of fixing holes 11 are formed in the fixing plates 10.

[0057] In this embodiment, the fixing holes 11 are used to install bolts to ensure the overall stability;

[0058] The sliding mechanism 30 is arranged in the first limiting groove 212, which facilitates the displacement of the lower extrusion plate 40 towards the extrusion strip 50. At the same time, the first limiting spring 213 can ensure the reset of the sliding mechanism 30.

[0059] Specifically, the second limiting component 23 includes a second limiting housing 231, a second limiting groove 233 is arranged inside the second limiting housing 231, and a second limiting spring 232 is arranged in the second limiting groove 233;

[0060] The sliding mechanism 30 on the second limiting component 23 is slidably arranged in the second limiting groove 233, and the sliding mechanism 30 is in contact with the second limiting spring 232.

[0061] In this embodiment, the sliding mechanism 30 is arranged in the second limiting groove 233, which facilitates the displacement of the upper extrusion plate 40 towards the extrusion strip 50. At the same time, the second limiting spring 232 can ensure the reset of the sliding mechanism 30.

[0062] Specifically, the lifting assembly 22 includes a lifting cylinder 221, a lifting rod 224 is slidably disposed in the lifting cylinder 221, and the lifting rod 224 is also rotatably disposed in the lifting cylinder 221, and the extrusion strip 50 is disposed on the lifting cylinder 221;

[0063] The lifting cylinder 221 is connected to the first limiting housing 211 , and the lifting rod 224 is connected to the second limiting housing 231 .

[0064] In this embodiment, the second limit assembly 23 can be lifted and rotated by lifting and rotating the lifting rod 224 in the lifting cylinder 221, so as to facilitate the staggered position of the upper extrusion plate 40 and the lower extrusion plate 40, thereby facilitating the placement of the air conditioning filter.

[0065] Specifically, the lifting cylinder 221 is provided with a vertical through slot 222, and the vertical through slot 222 is provided with a communicating placement through slot 223;

[0066] The lifting rod 224 is provided with a movable rod 225, and the movable rod 225 moves up and down in the vertical through slot 222 to make the second limit assembly 23 move up and down, and the movable rod 225 rotates in the placement through slot 223 to make the second limit assembly 23 rotate.

[0067] In this embodiment, the vertical through slot 222 can facilitate the vertical lifting and lowering of the second limit assembly 23, so that the upper extrusion plate 40 is aligned with the lower extrusion plate 40. At the same time, the placement of the through slot 223 can facilitate the rotation of the movable rod 225, thereby allowing the second limit assembly 23 to rotate.

[0068] Specifically, the sliding mechanism 30 includes a connecting sleeve 31, the connecting sleeve 31 is connected to the extrusion plate 40, and a sliding block 33 is rotatably provided on the connecting sleeve 31. Two groups of sliding blocks 33 slide in the first limiting groove 212 and the second limiting groove 233 respectively.

[0069] Specifically, a plurality of groups of balls 34 are disposed on the sliding block 33 , and a positioning rod 35 is also disposed on the sliding block 33 . The positioning rod 35 is disposed toward the extrusion bar 50 .

[0070] In this case, the two sets of positioning rods 35 extend into the first limiting spring 213 and the second limiting spring 232 respectively, thereby ensuring that the sliding block 33 can be reset.

[0071] In this embodiment, the ball bearings 34 are used to reduce friction, so as to facilitate the sliding block 33 to move in the first limiting groove 212 and the second limiting groove 233 .

[0072] Specifically, the extrusion plate 40 is provided with a connecting column 42;

[0073] A plurality of first connection holes 32 are formed in the connection sleeve 31, and a plurality of second connection holes 43 are formed in the connection column 42. The first connection holes 32 and the second connection holes 43 are connected by bolts.

[0074] In this case, when the air-conditioning filter element is opened and placed on the lower pressing plate 40, the air-conditioning filter element does not exceed the surface area of the pressing plate 40. Therefore, when pasting the edge, the edge strip can be quickly positioned according to the depression between the two pressing plates 40.

[0075] In this embodiment, through the cooperation between the first connection holes 32 and the second connection holes 43, it is convenient to replace the pressing plate 40 so as to perform extrusion positioning on air-conditioning filter elements of different specifications.

[0076] Specifically, a plurality of positioning plates 41 are arranged on the pressing plate 40.

[0077] The positioning plates 41 on the two pressing plates 40 are arranged staggeredly. Each group of positioning plates 41 on the upper pressing plate 40 is arranged between every two groups of positioning plates 41 on the lower pressing plate 40, so that when the upper positioning plate 41 descends, it does not contact the lower positioning plate 41.

[0078] In this case, the width of the extrusion strip 50 is smaller than the minimum distance between the two pressing plates 40.

[0079] In this embodiment, when positioning the air-conditioning filter element, the upper pressing plate 40 rotates to the same position as the lower pressing plate 40. Therefore, when the upper pressing plate 40 descends, each group of positioning plates 41 on the upper pressing plate 40 can extend into the folds of the air-conditioning filter element, and at the same time, each group of positioning plates 41 on the lower pressing plate 40 can extend into the folds of the air-conditioning filter element, so as to ensure that the spacing between the through-hole filter element folds is the same when pasting the edge, and improve the quality of the air-conditioning filter element.

[0080] A use method of an extrusion type positioning jig for producing an automotive air-conditioning filter element includes the following steps:

[0081] S1: Lifting and separating:

[0082] Lift the second limiting component 23, so that the movable rod 225 displaces in the vertical through groove 222 and rotates in the placing through groove 223, so that the upper pressing plate 40 and the lower pressing plate 40 are staggered.

[0083] S2: Filter element placing:

[0084] Open the filter element and place it on the lower pressing plate 40, and at the same time, make a plurality of positioning plates 41 on the lower pressing plate 40 extend into the fold gaps of the filter element.

[0085] S3: Descending and extruding:

[0086] Rotate the movable rod 225 in the placement through slot 223 until the movable rod 225 extends into the vertical through slot 222 and descends in the vertical through slot 222, causing the upper pressing plate 40 to displace towards the lower pressing plate 40 and aligning the upper pressing plate 40 with the lower pressing plate 40. At the same time, after the displacement is completed, multiple sets of positioning plates 41 on the upper pressing plate 40 extend into the folding gaps of the filter element.

[0087] S4: Rotational edge pasting:

[0088] Toggle the two sets of pressing plates 40 to rotate. During the rotation process, apply glue to the four sides of the filter element and sequentially wind the edge strip around the four sides of the filter element for the edge pasting process.

[0089] S5: Sliding extrusion:

[0090] Push the two sets of pressing plates 40 so that the pressing plates 40 displace towards the extrusion strip 50, causing the filter element with the edge pasted in S4: Rotational edge pasting to contact the extrusion strip 50, and repeat this step until the entire four sides of the filter element contact the extrusion strip 50, improving the stability of the connection between the edge strip and the filter element.

[0091] S6: Lifting and discharging:

[0092] After the entire four sides of the filter element contact the extrusion strip 50 in S5: Sliding extrusion, the first limit spring 213 and the second limit spring 232 reset the two sets of pressing plates 40, and repeat S1: Lifting and separating. Manually remove the filter element with the edge pasted on the lower pressing plate 40.

[0093] In this embodiment, through the above positioning method, the edge pasting treatment can be performed on the four sides of the filter element simultaneously, which is convenient for improving the edge pasting efficiency. At the same time, when performing edge pasting, the filter element is squeezed and positioned, which can ensure that the filter element is fully opened, ensure that the spacing between the filter element folds is the same, and prevent excessive differences from affecting the filtering effect.

[0094] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for using an extrusion positioning fixture in the production of automotive air conditioner filters, characterized in that: The positioning fixture includes a positioning mechanism (20), the positioning mechanism (20) is provided with a first limiting component (21) and a second limiting component (23), a lifting component (22) is arranged between the first limiting component (21) and the second limiting component (23), and an extrusion strip (50) is arranged on the lifting component (22); Sliding mechanisms (30) are arranged on both the first limiting component (21) and the second limiting component (23), a rotatable extrusion plate (40) is arranged on each sliding mechanism (30), and the second limiting component (23) displaces towards the first limiting component (21) through the lifting component (22), so that the upper extrusion plate (40) displaces towards the lower extrusion plate (40) to position the air-conditioning filter element; The first limiting component (21) includes a first limiting housing (211), a first limiting groove (212) is arranged inside the first limiting housing (211), and a first limiting spring (213) is arranged in the first limiting groove (212); The sliding mechanism (30) on the first limiting component (21) is slidably arranged in the first limiting groove (212), the sliding mechanism (30) is also in contact with the first limiting spring (213), fixing plates (10) are arranged at both ends of the first limiting housing (211), and a plurality of groups of fixing holes (11) are formed in the fixing plates (10); The second limiting component (23) includes a second limiting housing (231), a second limiting groove (233) is arranged inside the second limiting housing (231), and a second limiting spring (232) is arranged in the second limiting groove (233); The sliding mechanism (30) on the second limiting component (23) is slidably arranged in the second limiting groove (233), and the sliding mechanism (30) is in contact with the second limiting spring (232); The lifting component (22) includes a lifting cylinder (221), a lifting rod (224) is slidably arranged in the lifting cylinder (221), the lifting rod (224) is also rotatably arranged in the lifting cylinder (221), and the extrusion strip (50) is arranged on the lifting cylinder (221); The lifting cylinder (221) is connected to the first limiting housing (211), and the lifting rod (224) is connected to the second limiting housing (231); A through vertical through groove (222) is formed in the lifting cylinder (221), and a communicating placement through groove (223) is arranged on the vertical through groove (222); A movable rod (225) is arranged on the lifting rod (224), the movable rod (225) moves up and down in the vertical through groove (222) to lift the second limiting component (23), and the movable rod (225) rotates in the placement through groove (223) to rotate the second limiting component (23); The sliding mechanism (30) includes a connecting sleeve (31), the connecting sleeve (31) is connected to the extrusion plate (40), a sliding block (33) is rotatably arranged on the connecting sleeve (31), and the two sliding blocks (33) slide in the first limiting groove (212) and the second limiting groove (233) respectively; The sliding block (33) is provided with a plurality of groups of rolling balls (34), and the sliding block (33) is also provided with a positioning rod (35), wherein the positioning rod (35) is arranged in the direction of the extrusion strip (50); The extrusion plate (40) is provided with a connecting column (42); The connecting sleeve (31) is provided with a plurality of first connecting holes (32), the connecting column (42) is provided with a plurality of second connecting holes (43), and the first connecting holes (32) and the second connecting holes (43) are connected by bolts; The extrusion plate (40) is provided with a plurality of groups of positioning plates (41); The positioning plates (41) on the two groups of the extrusion plates (40) are arranged in a staggered manner, and each group of positioning plates (41) on the upper extrusion plate (40) is arranged between each two groups of positioning plates (41) on the lower extrusion plate (40), so that the upper positioning plate (41) does not contact the lower positioning plate (41) when descending; The method of use comprises the following steps: S1: Lifting and separation: Lifting the second limiting assembly (23) causes the movable rod (225) to move in the vertical through slot (222) and rotate in the placement through slot (223) so that the upper extrusion plate (40) is staggered with the lower extrusion plate (40); S2: Filter element placement: The filter element is opened and placed on the lower extrusion plate (40), and at the same time, the plurality of positioning plates (41) on the lower extrusion plate (40) are extended into the folding gap of the filter element; S3: Drop Squeeze: The movable rod (225) is rotated in the placement slot (223) until the movable rod (225) extends into the vertical slot (222) and descends in the vertical slot (222), so that the upper extrusion plate (40) is displaced toward the lower extrusion plate (40) and the upper extrusion plate (40) is aligned with the lower extrusion plate (40). After the displacement is completed, the plurality of positioning plates (41) on the upper extrusion plate (40) extend into the folding gap of the filter element; S4: Rotational Welt: The two sets of extrusion plates (40) are moved to rotate, and during the rotation, glue is applied to the periphery of the filter element, and the edge strips are sequentially wrapped around the periphery of the filter element to perform an edge bonding process; S5: Slide Squeeze: Pushing the two groups of extrusion plates (40) so that the extrusion plates (40) are displaced toward the extrusion strips (50), so that the filter element that has completed the edge wedging in S4: rotating the edge wedging contacts the extrusion strips (50), and repeating this step until all sides of the filter element are in contact with the extrusion strips (50), thereby improving the stability of the connection between the edge strips and the filter element; S6: Lifting and discharging: In S5: after all four sides of the filter element are in contact with the extrusion strips (50) during sliding extrusion, the first limit spring (213) and the second limit spring (232) reset the two sets of extrusion plates (40), and repeat S1: lifting and separating, and manually remove the filter element that has been attached to the lower end extrusion plate (40).

Images