Filter press assembly equipment

Abstract

The present application relates to the technical field of workpiece pressing assembly equipment, and provides a filter pressing assembly equipment, which comprises a rack, a supporting assembly is arranged on the rack and is used for supporting a shell and driving the shell to move up and down, a one-way limiting piece for limiting one-way rotation of the shell is arranged on the supporting assembly; an outer flange mold is swingably arranged on the rack and located at the side of the supporting assembly; a pressing frame is arranged on the rack and located above the supporting assembly, a rotating shaft extending downward is rotatably arranged on the pressing frame, the rotating shaft is used for hoisting a top cover and driving the top cover to rotate; and an inner flange mold is hoisted on the rack and located above the outer flange mold. Through integration of the preliminary assembly and the edge sealing function in the same equipment, the problems of large equipment space occupation, high transfer cost and process connection in the existing step-by-step operation mode are solved.

Description

Technical Field

[0001] This invention relates to the field of workpiece pressing and assembly equipment technology, and more specifically, to a filter pressing and assembly equipment. Background Technology

[0002] In the filter manufacturing process, the cap assembly process has a significant impact on the product's sealing performance, structural strength, and service life. It is a key step in ensuring filtration effectiveness and the normal operation of related equipment.

[0003] Currently, the industry generally adopts a step-by-step operation mode for filter cap assembly and edge sealing: First, a special pressing device is used to rotate and press the cap to initially fit the top cover into the upper opening of the outer shell, achieving a preliminary connection between the shell and the cap; then, the operator removes the initially fitted workpiece from the pressing device and transfers it to another independent edge sealing and joining device; finally, the edge sealing and joining device bends and seals the upper edge of the outer shell to complete the enhanced seal.

[0004] In actual production, the aforementioned step-by-step operation mode increases equipment purchase costs and site planning complexity due to the separate production areas occupied by two sets of independent equipment, resulting in a high production space occupancy rate. Secondly, the transfer of workpieces between the two sets of equipment requires additional manpower, and operators need to frequently move workpieces between the two sets of equipment, increasing labor input costs. Moreover, the transfer process prolongs the production cycle, hindering the improvement of batch production efficiency. At the same time, under the step-by-step operation mode, the processing quality of the pre-pressing and capping process directly affects the subsequent edge sealing process. If the cap is skewed or not properly fitted in the pre-pressing process, it will lead to problems such as misalignment and cracking in the subsequent edge sealing process, which not only increases the scrap rate but may also cause mold jamming or equipment damage.

[0005] To address the problems of large equipment space occupation, high workpiece transfer costs, and high edge sealing defect rate caused by poor process connection in the existing step-by-step operation mode, a technical solution is needed that can integrate the fitting assembly and edge sealing processing into the same equipment. Summary of the Invention

[0006] To overcome the above-mentioned defects, embodiments of the present invention provide a filter pressing and assembly device, which solves the technical problems of low work efficiency and high failure rate of subsequent edge sealing in the existing step-by-step mode of filter cap assembly and edge sealing in the prior art.

[0007] According to one aspect, at least one embodiment of the present invention provides a filter pressing and assembly apparatus for assembling a top cover onto a housing to form a filter, comprising: A frame, on which a support assembly is raised and lowered, the support assembly being used to support the outer shell and drive the outer shell to move up and down, and the support assembly being provided with a one-way limiting component for limiting the one-way rotation of the outer shell; The outer folding mold is oscillatingly mounted on the frame and located on the side of the supporting assembly; A top pressure frame is flexibly mounted on the frame and located above the support assembly. A downwardly extending rotating shaft is rotatably mounted on the top pressure frame. The rotating shaft is used to suspend the top cover and drive the top cover to rotate. The inner folding mold is suspended on the frame and is located above the outer folding mold. The top pressure frame and the supporting assembly can drive the top cover and the outer shell to move closer together, and drive the top cover to rotate relative to the outer shell with the help of the rotating shaft, so that the top cover gradually embeds into the upper end of the outer shell; after the outer shell and the top cover are embedded, the supporting assembly can drive the outer shell to move upward to the inner folding mold entering the upper opening of the outer shell, the outer folding mold can swing vertically to the outside of the upper opening of the outer shell, and the rotating shaft can drive the outer shell and the top cover to rotate in opposite directions, so that the inner folding mold and the outer folding mold respectively press against the inner and outer sides of the outer shell to form an opening seal.

[0008] As a further technical solution, the support component includes: A lifting base frame, on which a rotating disk is rotatably mounted, and a one-way limiting member is disposed between the rotating disk and the lifting base frame; A plurality of side wall clamps are provided and arranged circumferentially on the rotating disk. The side wall clamps are slidably disposed along the radial direction of the rotating disk. The plurality of side wall clamps form a receiving space for accommodating the outer shell. The side wall clamps are configured to slide close to each other to clamp the outer shell.

[0009] As a further technical solution, the outer folding mold has an outer guide forming groove on the side wall near the rotating shaft, and the inner folding mold has an inner forming pressing arc surface on the side wall away from the rotating shaft. The outer folding mold is also provided with a mold closing clearance groove for avoiding the inner folding mold. The inner folding mold can enter the mold closing clearance groove when the outer folding mold swings close to the outer shell.

[0010] As a further technical solution, it also includes: A pre-compression top member is radially slidably disposed on the side wall block. The pre-compression top member is also provided with a third elastic member. The other end of the third elastic member acts on the side wall block. The third elastic member is used to elastically push the pre-compression top member in the direction of the receiving space. The pre-compression top member is configured to always extend into the receiving space and abut against the outer wall of the filter housing. After the side wall block retracts, it compresses the third elastic member to increase the compressive force between the pre-compression top member and the filter housing.

[0011] As a further technical solution, the outer side of the sidewall block is provided with an outwardly and downwardly inclined outer abutment surface, and also includes: The bottom support block is slidably mounted on the rotating disk and located at the bottom of the receiving space. The bottom support block is used to support the bottom of the filter housing. The rotating disk is provided with a limiting platform that extends upward to limit the lifting and lowering movement of the bottom support block. A lifting ring is slidably sleeved on the outer periphery of several side wall clamping blocks. The supporting bottom block is connected to the lifting ring through a connecting arm, which passes through the limiting platform. The inner side of the lifting ring is provided with an inner abutting slope extending outward and downward. The supporting bottom block drives the lifting ring to move downward synchronously under the downward movement of the outer shell, and the sliding cooperation between the inner and outer abutting slopes drives several side wall clamping blocks to move closer synchronously to clamp the outer shell.

[0012] As a further technical solution, the limiting platform is provided with an upward-opening and radially extending guide groove, and the side wall block is provided with a sliding part that is slidably disposed in the guide groove. A first elastic member is provided between the sliding part and the guide groove. One end of the first elastic member acts on the sliding part and the other end acts on the side wall of the guide groove, for elastically pushing the sliding part to slide away from the center of the rotating disk.

[0013] As a further technical solution, the frame is provided with two sets of upwardly extending uprights. The two sets of uprights are symmetrically arranged on both sides of the lifting base. Each set of uprights is provided with a swing plate for installing the outer folding mold. The swing plate is also provided with abutting wheels for abutting and rolling with the peripheral wall of the outer shell. The swing plate can swing vertically relative to the uprights to drive the outer folding mold and the abutting wheels closer to or away from the outer shell.

[0014] As a further technical solution, it also includes: Guide rods are vertically arranged on the top of the frame. There are two guide rods, which are respectively located above the two sets of uprights. There are two inner folding molds, which are respectively connected to the bottom ends of the two guide rods. A linear drive unit is disposed on the top of the frame. The output end of the linear drive unit is downward and connected to a synchronization plate. Two guide rods pass through the synchronization plate and are slidably engaged with the synchronization plate. The top pressure frame is slidably disposed on the two guide rods. The second elastic element is connected between the synchronous plate and the top pressure frame. Under the driving action of the linear drive, the second elastic element can drive the top pressure frame and the top cover to move down synchronously. After the top cover is embedded in the housing, the lifting base can drive the filter housing to move up and push the top pressure frame up with the help of the top cover, and compress the second elastic element to keep the top cover and housing embedded.

[0015] As a further technical solution, the lifting base is provided with two push frames that correspond one-to-one with the upright frame, and the push frames are vertically slidably mounted on the upright frame; a horizontal through slot is opened on the swing plate, the through slot is parallel to the swing axis of the swing plate, and a horizontally extending sliding rod is provided at the top of the push frame, the sliding rod is slidably mounted in the through slot; The pusher is configured such that, after being driven to rise or fall by the lifting base, it slides against the sliding rod through the strip groove, pushing the swing plate to swing vertically, thereby causing the outer folding mold to move closer to or away from the outer shell.

[0016] As a further technical solution, the one-way limiting component is a one-way bearing.

[0017] The beneficial effects of this invention are as follows: In this invention, by integrating the fitting and edge-sealing functions into the frame, the workpiece transfer link between two independent sets of equipment in the prior art is eliminated, reducing equipment space occupation and labor input costs. By utilizing the characteristics of the unidirectional limiting component to restrict the rotation of the outer shell in the fitting condition and allow synchronous rotation in the edge-sealing condition, it is ensured that only the top cover rotates during the fitting process to achieve precise fitting, and the outer shell and the top cover rotate synchronously during the edge-sealing process to ensure uniform folding. The arc-shaped folding part of the outer folding mold is adapted to the target forming shape of the outer side wall of the upper opening of the outer shell, and in combination with the conical surface structure of the inner folding mold, the edge-sealing process is formed in one step, avoiding faults such as folding misalignment and cracking caused by transfer or process connection problems in the step-by-step operation, reducing scrap rate and production costs, while shortening the production cycle and improving batch production efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of the present invention and these drawings without any creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a filter pressing and assembly device according to one embodiment of the present invention; Figure 2 for Figure 1 A partially enlarged structural diagram of section A in the middle; Figure 3 for Figure 1 A partially enlarged structural diagram of section B in the middle; Figure 4 for Figure 1 A partially enlarged structural diagram of section C in the middle; Figure 5 for Figure 1 A schematic diagram of the structure at the support component in the embodiment; Figure 6 for Figure 5 Internal structure diagram; Figure 7 for Figure 6 A partially enlarged structural diagram of section D in the middle; Figure 8 for Figure 1 A structural diagram of another state in the embodiment (fully compressed edge sealing state). Figure 9 for Figure 8 A partially enlarged structural diagram of section E in the middle; Figure 10 for Figure 1 A schematic diagram of the filter structure in the embodiment (left after assembly, right before assembly). In the diagram: Outer shell - 20, Top cover - 21, Frame - 1, Support assembly - 200, Lifting base - 210, Rotating disc - 220, Guide slide - 221, Side wall latch - 230, Accommodation space - 231, Outer abutment slope - 232, Sliding part - 233, Outer folding mold - 3, Outer guide forming groove - 301, Inner forming pressing arc surface - 302, Mold closing clearance groove - 303, Top pressure frame - 4, Rotating shaft - 40 1. Inner folding mold - 5. Supporting base block - 6. Lifting ring - 7. Inner abutment slope - 8. First elastic element - 81. Stand - 9. Swing plate - 10. Strip through groove - 1001. Abutment wheel - 11. Guide rod - 12. Linear drive element - 13. Synchronous plate - 14. Second elastic element - 15. Push frame - 16. Sliding rod - 1601. Pre-pressing top element - 17. Third elastic element - 18. Limiting platform - 222. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it.

[0021] To keep the drawings concise, each drawing only schematically shows the parts relevant to the invention; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0022] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0023] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0024] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0025] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] like Figures 1-10 As shown, it illustrates a filter pressing and assembly apparatus according to an embodiment of the present invention for assembling a top cover 21 onto a housing 20 to form a filter.

[0027] The frame 1 serves as the basic structure of the equipment and includes an operating platform for placing the support assembly 200, with a crossbeam at the top. The support assembly 200 is vertically mounted in the middle of the frame 1 and includes a lifting drive and a support platform. The lifting drive is a vertical cylinder, with the cylinder body fixed to the inner wall of the frame 1 and the top of the piston rod fixed to the lower surface of the support platform, driving the support platform to rise and fall along the vertical guide rail of the frame 1. The upper surface of the support platform has a positioning groove that matches the bottom of the outer shell 20 for vertical positioning of the outer shell 20. A one-way limiting component is located at the edge of the support platform. The one-way limiting component can be a check bearing, an elastic block, or a one-way slot, etc. Its function is to restrict the rotation of the outer shell 20 in the fitting condition so that the top cover 21 can rotate and fit into the opening of the outer shell 20, and to allow the outer shell 20 to rotate synchronously with the top cover 21 in the sealing condition. The outer folding mold 3 is oscillating on the side support of the frame 1 via a hinge shaft. The hinge shaft passes laterally through the side support and the middle of the outer folding mold 3. The lower end of the outer folding mold 3 is provided with an arc-shaped folding part, the curvature of which is adapted to the target forming shape of the outer side wall of the upper opening of the outer shell 20. The top pressure frame 4 is located below the horizontal support at the top of the frame 1. Its rotating shaft 401 is rotatably inserted through the middle of the top pressure frame 4 via a bearing. The top end is connected to a rotary drive component, which is a servo motor and fixed to the top pressure frame 4. The output shaft is connected to the top end of the rotating shaft 401 for transmission. The lower end of the rotating shaft 401 is provided with a hoisting part, which can be a screw that matches the pre-set screw hole of the top cover 21 or a positioning head with elastic claws, for detachably hoisting the top cover 21 and driving it to rotate. The inner folding mold 5 is suspended under the top crossbeam of the frame 1 by a suspension bracket. The other end of the suspension bracket extends downward and connects to the inner folding mold 5, so that the inner folding mold 5 is located above the outer folding mold 3. The inner folding mold 5 is annular, and the outer side wall is a conical surface that slopes outward from top to bottom, which is used to press against the inner side wall of the upper opening of the outer shell 20.

[0028] The workflow is as follows: First loading stage: The outer shell 20 is placed in the positioning groove of the support component 200. The support component 200 also clamps and fixes the outer shell 20 through the shape of the positioning groove or the setting of additional clamps. The bottom of the support component 200 cooperates with the one-way limiting component. The top cover 21 is fixed by the hoisting part of the rotating shaft 401 so that the top cover 21 is located directly above the outer shell 20.

[0029] Second fitting condition: Start the lifting drive of the support component 200 to drive the support platform to rise, while the top pressure frame 4 drives the rotating shaft 401 to fall, so that the top cover 21 contacts the upper opening of the outer shell 20; start the rotation drive to drive the rotating shaft 401 to drive the top cover 21 to rotate along the fitting direction. During the rotation, the top cover 21 gradually fits into the opening of the outer shell 20. The one-way limiting component restricts the outer shell 20 to rotate synchronously with the top cover 21 to ensure the stability of the fitting process. Three-sided edge preparation stage: After the top cover 21 and the outer shell 20 are fitted together, the top pressure frame 4 remains in the same position, and the lifting drive of the supporting component 200 continues to drive the outer shell 20 to move upward, so that the inner side wall of the upper opening of the outer shell 20 is fitted onto the outer side of the inner folding mold 5; at the same time, the outer folding mold 3 swings upward around the hinge axis, so that the arc-shaped folding part moves to the outer side of the upper opening of the outer shell 20 and makes contact. Four-sided sealing condition: Start the rotary drive component to drive the rotating shaft 401 to rotate in the opposite direction. The top cover 21 drives the outer shell 20 to rotate in the opposite direction synchronously through the fitting structure. The one-way limiting component does not restrict the rotation of the outer shell 20. During the reverse rotation, the upper opening edge of the outer shell 20 is gradually formed into a sealing edge that matches the target molding shape under the joint pressing action of the arc-shaped folding part of the outer folding mold 3 and the conical surface of the inner folding mold 5, thus completing the sealing and fixing of the outer shell 20 and the top cover 21. Fifth stage of material unloading: After the edge sealing is completed, the outer folding mold 3 swings down and resets around the hinge axis. The support component 200 drives the assembled filter to descend. The lifting part of the rotating shaft 401 releases the top cover 21, or it can be manually grasped to reverse the thread between the top cover 21 and the rotating shaft 401 to achieve disassembly. The top pressure frame 4 drives the rotating shaft 401 to rise and reset, and the assembled filter can be removed.

[0030] By integrating the fitting and edge-sealing functions into the frame 1, the workpiece transfer link between two independent sets of equipment in the prior art is eliminated, reducing the space occupied by the equipment and the cost of manpower. With the help of the unidirectional limiting component, which restricts the rotation of the outer shell 20 in the fitting condition and allows synchronous rotation in the edge-sealing condition, it is ensured that only the top cover 21 rotates during the fitting process to achieve precise fitting, and the outer shell 20 and the top cover 21 rotate synchronously during the edge-sealing process to ensure uniform folding. The arc-shaped folding part of the outer folding mold 3 is adapted to the target forming shape of the outer side wall of the upper opening of the outer shell 20. With the conical structure of the inner folding mold 5, the edge-sealing process is formed in one step, avoiding the faults such as folding misalignment and cracking caused by transfer or process connection problems in the step-by-step operation, reducing the scrap rate and production cost, while shortening the production cycle and improving the efficiency of mass production.

[0031] Furthermore, the supporting assembly 200 includes a lifting base 210, a rotating disk 220, and a side wall locking block 230. The lifting base 210 serves as the lifting foundation for the supporting assembly, and its bottom is fixedly connected to the piston rod of the vertical cylinder of the lifting drive component of the frame 1, allowing it to rise and fall along the vertical guide rail of the frame 1. The upper surface of the lifting base 210 is provided with an annular groove, and the rotating disk 220 is rotatably mounted in the annular groove via a thrust bearing. The lower ring of the thrust bearing is fixed to the lifting base 210, and the upper ring is fixed to the lower surface of the rotating disk 220, allowing the rotating disk 220 to rotate relative to the lifting base 210 around its own axis. A one-way limiting component is provided between the rotating disk 220 and the lifting base 210. If a check bearing is used, its outer ring is fixed to the inner side wall of the annular groove of the lifting base 210, and its inner ring is fixed to the outer side wall of the rotating disk 220, ensuring that the rotating disk 220 can only rotate in the direction required for the edge sealing condition, and restricting its rotation during the fitting condition. Several sidewall clamping blocks 230 are provided, evenly arranged along the circumferential direction of the upper surface of the rotating disk 220. Each sidewall clamping block 230 has a radially extending guide groove on the rotating disk 220, and a slider adapted to the guide groove is provided at the bottom of the sidewall clamping block 230, allowing the sidewall clamping block 230 to slide radially along the rotating disk 220. The inner sidewalls of the several sidewall clamping blocks 230 enclose a receiving space 231. Initially, the diameter of the receiving space 231 is larger than the outer diameter of the outer shell 20. As the sidewall clamping blocks 230 slide along the guide groove towards the center, the diameter of the receiving space 231 decreases until the inner sidewall of the sidewall clamping block 230 contacts and clamps the outer sidewall of the outer shell 20.

[0032] Add a new workflow: In the first feeding stage: the lifting base 210 drives the rotating disk 220 to descend to the material picking position, and the side wall clamping block 230 slides outward along the guide groove to expand the diameter of the accommodating space 231; the outer shell 20 is placed in the accommodating space 231, and the bottom of the outer shell 20 contacts the upper surface of the rotating disk 220; the side wall clamping block 230 slides inward along the guide groove, and moves closer to each other until it clamps the outer wall of the outer shell 20, thus completing the radial positioning of the outer shell 20. Second fitting condition: The lifting base 210 drives the rotating disk 220 and the outer shell 20 to rise, while the top pressing frame 4 drives the top cover 21 to fall. When the top cover 21 rotates and fits, the rotating disk 220 cannot rotate with the outer shell 20 because the one-way limiting component is set between the rotating disk and the lifting base. The side wall locking block 230 keeps the outer shell 20 in a clamping state to prevent the outer shell 20 from radially shifting during the fitting process. Three-sided sealing condition: After the outer shell 20 and the top cover 21 are fitted together, they rotate in the opposite direction synchronously with the rotating disk 220. The one-way limiting component allows the rotating disk 220 to rotate relative to the lifting base 210. The side wall clamping block 230 rotates together with the rotating disk 220 to continuously clamp the outer shell 20 to ensure its concentricity during the sealing process.

[0033] By rotating the lifting base 210 and the rotating disk 220 together, and combining the one-way limiting component set between them, the one-way limiting effect is more directly applied to the rotational constraint of the outer shell 20, improving the reliability of the limiting. The side wall blocks 230 slide radially and are arranged circumferentially. The sliding distance can be adjusted to accommodate outer shells 20 with different outer diameters, expanding the applicability of the equipment. The accommodating space 231 formed by several side wall blocks 230 can limit the radial displacement of the outer shell 20 after clamping. Combined with the rotational coaxiality of the rotating disk 220, it ensures that the top cover 21 and the center of the outer shell 20 are aligned during fitting, reducing fitting deviation. During the edge sealing process, the side wall blocks 230 rotate synchronously with the rotating disk 220 to prevent the outer shell 20 from shifting due to centrifugal force. This ensures that the force exerted by the inner and outer folding molds on the upper opening of the outer shell 20 is evenly distributed, further reducing the probability of folding misalignment and cracking.

[0034] Furthermore, an outer guide forming groove 301 is provided on the side wall of the outer folding mold 3 near the rotating shaft 401, i.e., on the inner side wall facing the outer shell 20. This groove extends along the arc-shaped folding portion of the outer folding mold 3, and its cross-sectional shape matches the target folding contour of the outer side wall of the upper opening of the outer shell 20. The bottom of the groove is an arc-shaped curved surface, which is used to guide the edge of the outer shell 20 to bend along a preset path during the sealing process. A mold closing clearance groove 303 is provided on the upper end face of the outer folding mold 3. The mold closing clearance groove 303 extends along the swing trajectory direction of the outer folding mold 3, and the groove opening faces the inner folding mold 5. Its depth and width match the lower end contour of the inner folding mold 5, so that the inner folding mold 5 can be partially embedded in the mold closing clearance groove 303 after the outer shell 20 moves upward and the outer folding mold 3 swings closer. The inner folding mold 5 has an inner forming abutment arc surface 302 on its side wall away from the rotation axis 401, i.e., the outer side wall. This arc surface smoothly transitions with the original conical surface of the inner folding mold 5 and extends outward from the lower end of the conical surface. Its curvature is consistent with the target folding curvature of the inner side wall of the upper opening of the outer shell 20. It is used to press against the inner side of the edge of the outer shell 20 during sealing and cooperates with the outer guide forming groove 301 to form a symmetrical bending constraint. Further workflow: During the edge sealing preparation stage, when the outer edge folding mold 3 swings upward around the hinge axis and approaches the outer shell 20, the lower end of the inner edge folding mold 5 gradually enters the mold closing clearance groove 303 of the outer edge folding mold 3 as the outer shell 20 moves upward. The two partially overlap in the vertical direction but do not interfere with each other structurally. At this time, the groove of the outer guide forming groove 301 is aligned with the outer edge of the upper opening of the outer shell 20, and the inner forming pressing arc surface 302 is attached to the inner edge of the upper opening of the outer shell 20. During the edge sealing process, when the outer shell 20 and the top cover 21 rotate synchronously in opposite directions, the outer edge of the upper opening of the outer shell 20 bends along the bottom curved surface of the outer guide forming groove 301 under the action of rotational force, and the inner edge bends synchronously under the pushing of the inner forming pressing arc surface 302. The two work together to form an edge sealing structure that matches the contour of the outer guide forming groove 301 and the inner forming pressing arc surface 302. The outer guide forming groove 301 constrains the outer edge folding path of the outer shell 20 through a preset contour, ensuring a uniform folding shape. The inner forming pressure arc surface 302 is correspondingly set with the outer guide forming groove 301, so that the inner and outer edges of the outer shell 20 are subjected to balanced forces, avoiding cracking or deformation caused by excessive force on one side. The mold closing clearance groove 303 provides space clearance for the inner folding mold 5 and the outer folding mold 3, allowing them to cooperate closely during edge sealing, shortening the distance difference between the inner and outer folds, and improving the sealing performance. At the same time, it avoids rigid collisions between molds, reduces equipment wear, and lowers the probability of failure caused by structural interference. In addition, the synergistic effect of the forming groove and the pressure arc surface enables the upper edge of the outer shell 20 to achieve continuous and uniform plastic deformation during rotation, further improving the sealing accuracy and consistency.

[0035] Furthermore, the pre-compression top member 17 is shaped like a top rod with a top block at one end, and is radially slidably disposed on the inner sidewall of the sidewall locking block 230 facing the receiving space 231. A radially penetrating sliding hole is provided on the sidewall locking block 230 corresponding to the pre-compression top member 17. The diameter of the sliding hole is adapted to the outer diameter of the pre-compression top member 17, allowing the pre-compression top member 17 to slide axially along the hole wall. The end of the pre-compression top member 17 near the receiving space 231 has an arc-shaped end face, and the end away from it has a limiting flange to prevent the pre-compression top member 17 from dislodging from the sliding hole. The third elastic element 18 is embedded in the sliding hole, with one end abutting against the bottom of the sliding hole and the other end abutting against the limiting flange of the pre-compression top element 17. The third elastic element 18 is a helical spring, which pushes the pre-compression top element 17 to extend towards the receiving space 231 in its natural state, so that the arc end face of the pre-compression top element 17 always extends into the receiving space 231. Further improvements to the workflow: During the feeding stage, when the side wall block 230 slides outward along the guide groove, the diameter of the accommodating space 231 expands, and the pre-pressing top member 17 remains extended under the action of the third elastic member 18; after the outer shell 20 is placed into the accommodating space 231, the arc end face of the pre-pressing top member 17 initially abuts against the outer wall of the outer shell 20, and the third elastic member 18 is in a slightly compressed state. When the side wall locking block 230 slides and retracts inward along the guide groove, the reaction force of the outer shell 20 on the pre-compression top member 17 increases, pushing the pre-compression top member 17 back into the sliding hole and compressing the third elastic member 18. As the side wall locking block 230 continues to retract, the compression of the third elastic member 18 increases, and its elastic restoring force is transmitted to the outer wall of the outer shell 20 through the pre-compression top member 17, so that the compressive force between the pre-compression top member 17 and the outer shell 20 increases synchronously. In both the fitting and sealing conditions, the pre-pressed top member 17 is always in close contact with the outer wall of the outer shell 20 under the action of the third elastic member 18. Even if the outer shell 20 undergoes a slight radial displacement due to rotation, the expansion and contraction of the third elastic member 18 can compensate in real time to maintain a stable clamping force. By cooperating with the pre-pressing top member 17 and the third elastic member 18, the immediate fixed positioning of the outer shell 21 is achieved when it is first inserted. On the other hand, the side wall clamping block 230 can adaptively clamp the outer shell 20 with different dimensional tolerances, avoiding damage or deformation of the outer wall of the outer shell 20 caused by rigid clamping. The elastic force of the third elastic member 18 increases as the side wall clamping block 230 contracts, which not only ensures flexible positioning at the initial contact, but also provides sufficient extrusion force during the edge sealing rotation to prevent the outer shell 20 from sliding relative to the side wall clamping block 230, ensuring the coaxiality of the outer shell 20 and the top cover 21. The arc end face of the pre-pressing top member 17 contacts the outer wall of the outer shell 20, reducing the contact area and stress concentration. Combined with the elastic buffering effect, it further reduces the risk of breakage of the outer shell 20 during the clamping process and improves the compatibility of the equipment with outer shells 20 of different specifications.

[0036] Furthermore, the outer wall of the side wall block 230 is provided with an outer abutting slope 232 in the middle of the outer wall, which extends outward and downward from the outer side of the side wall block 230, and the inclination angle of the outer abutting slope 232 of each side wall block 230 is the same. The supporting base 6 is disc-shaped and is slidably and vertically positioned in the central area of ​​the rotating disk 220, at the bottom of the receiving space 231. Several upwardly extending limiting platforms 222 are provided on the upper surface of the rotating disk 220 corresponding to the outer periphery of the supporting base 6. The limiting platforms 222 are arranged in a ring, with gaps between adjacent limiting platforms 222 for connecting arms to pass through. The inner sidewall of the limiting platform 222 slides against the outer sidewall of the supporting base 6, restricting the supporting base 6 to vertical movement only. The lifting ring 7 is a ring structure that slides around the outer periphery of several side wall blocks 230, with its inner side wall slidingly engaging with the outer side wall of the side wall blocks 230. A connecting arm extends radially from the edge of the supporting base block 6, passing through the gap in the limiting platform 222, and its end is fixed to the inner side wall of the lifting ring 7, forming a synchronous lifting and linkage structure. The inner side wall of the lifting ring 7 has an inner abutting slope 8, which extends outward and downward from the inner side of the lifting ring 7, with the slope angle consistent with the outer abutting slope 232, forming a wedge-shaped fit. Work process improvement: During the loading stage, the initial state is such that the supporting base block 6 is in a high position, and the lifting ring 7 is also in a high position. The inner abutting slope 8 and the upper end of the outer abutting slope 232 are in contact, the side wall blocks 230 are far apart, and the diameter of the accommodating space 231 is at its maximum. The outer shell 20 is placed on the upper surface of the supporting base block 6, and the gravity of the outer shell 20 causes the supporting base block 6 to move downward, which drives the lifting ring 7 to move downward synchronously through the connecting arm. In the initial stage of the downward movement of the lifting ring 7, the radial component force generated by the sliding of the inner abutting inclined surface 8 along the outer abutting inclined surface 232 is relatively small. The side wall clamping block 230, which is closest to the outer wall of the outer shell 20, first contacts the outer shell 20 and applies an initial clamping force. As the lifting ring 7 continues to move downward, the radial component force increases, and the remaining side wall clamping blocks 230 contact the outer wall of the outer shell 20 in sequence. The clamping force of each side wall clamping block 230 gradually increases as the lifting ring 7 moves downward until all side wall clamping blocks 230 abut against the outer shell 20 and the clamping force is balanced. At this time, the limiting platform 222 restricts the supporting bottom block 6 from continuing to move downward, completing the sequential clamping process. During the fitting and sealing process, the pressure of the outer shell 20 on the supporting block 6 keeps the lifting ring 7 in a low position, and the side wall clamping block 230 maintains a balanced clamping force to prevent the outer shell 20 from deforming due to excessive local force. The lifting ring 7 moves downward by supporting the bottom block 6. Utilizing the wedge-shaped engagement of the inner abutting inclined surface 8 and the outer abutting inclined surface 232, the side wall clamping blocks 230 sequentially contact and apply clamping force along the outer periphery of the outer shell 20. This avoids localized stress concentration caused by simultaneous clamping of all blocks, achieving a balanced distribution of clamping pressure. The sequential clamping process can accommodate minor dimensional deviations in the outer wall of the outer shell 20. The adaptive displacement compensation of each side wall clamping block 230 ensures the center positioning accuracy of the outer shell 20 within the accommodating space 231. The balanced clamping pressure prevents radial movement of the outer shell 20 during rotation. Combined with the rotational constraint of the unidirectional limiting component, this further enhances the stability of the fitting and sealing processes, reducing the incidence of processing defects caused by uneven force. Simultaneously, the clamping is driven by the gravity of the outer shell 20 itself, eliminating the need for an additional drive structure, simplifying equipment layout, and reducing energy consumption. Furthermore, the limiting platform 222 has a guide groove 221 on its side wall facing the receiving space 231. The guide groove 221 opens upward and extends radially along the rotating disk 220. Its cross-section is T-shaped or rectangular, and the bottom of the groove is a smooth plane. The middle of the outer side wall of the side wall block 230 extends outward to form a sliding part 233. The shape of the sliding part 233 is adapted to the guide groove 221, is embedded in the groove, and slides along the length of the groove. The fit gap between the two is less than 0.1 mm to limit the vertical displacement of the side wall block 230. The first elastic element 81 is embedded in the guide groove 221, with one end abutting against the end face of the sliding part 233 away from the receiving space 231, and the other end abutting against the side wall of the guide groove 221 away from the center. The first elastic element 81 is a helical spring, which is in a slightly compressed state in its natural state, and continuously applies a pushing force to the sliding part 233 outward along the guide groove 221, causing the side wall block 230 to slide away from the center of the rotating disk 220. Work process improvement: In the initial state, the first elastic element 81 pushes the sliding part 233 to slide outward along the guide groove 221, causing the side wall blocks 230 to move away from each other, and the accommodating space 231 maintains its maximum diameter; at this time, the lifting ring 7 and the supporting bottom block 6 are in a high position under the action of gravity or the associated reset element, and the inner abutting slope 8 and the upper end of the outer abutting slope 232 are in contact. During the loading stage, after the outer shell 20 is placed on the supporting base block 6, the supporting base block 6 drives the lifting ring 7 to move down. The inner abutting inclined surface 8 slides along the outer abutting inclined surface 232 to generate a radial component force. This component force overcomes the thrust of the first elastic element 81 and pushes the side wall clamping block 230 to slide towards the center. The sliding part 233 moves inward along the guide groove 221 and compresses the first elastic element 81. During this process, each side wall clamping block 230 can only slide radially under the constraint of the guide groove 221. With the compensation of the elasticity difference of the first elastic element 81, the clamping is clamped in sequence and the pressure is kept balanced. During the unloading stage, after the outer shell 20 is removed, the supporting base block 6 and the lifting ring 7 move upward, the radial thrust of the inner abutting inclined surface 8 on the side wall block 230 disappears, the first elastic element 81 pushes the sliding part 233 to reset outward along the guide groove 221, causing the side wall blocks 230 to move away from each other, and the accommodating space 231 returns to its maximum diameter. The cooperation between the guide groove 221 and the sliding part 233 limits the movement trajectory of the side wall clamping block 230 to a strict radial direction, preventing it from swaying during clamping or resetting, and ensuring the synchronicity and stability of the movement of each side wall clamping block 230. The first elastic element 81 provides a continuous outward resetting force for the side wall clamping block 230, keeping the accommodating space 231 at its maximum in the initial state, which facilitates the rapid loading of the outer shell 20. During the sequential clamping process, the elastic force of the first elastic element 81 can buffer the sudden change of the radial component force, so that the clamping force of each side wall clamping block 230 gradually increases, further optimizing the pressure balance. When the outer shell 20 is removed, the elastic resetting function ensures that the side wall clamping block 230 automatically resets without additional drive, simplifying the operation process and improving the efficiency of equipment cycle operation.

[0037] Furthermore, the upper surface of the operating platform of the frame 1 is provided with two sets of uprights 9, which are symmetrically distributed about the central axis of the lifting base 210 and located on both sides of the rotating disk 220. The uprights 9 are vertically extending plate-like structures, with their bottom ends fixedly connected to the operating platform of the frame 1 and their top ends extending horizontally towards the lifting base 210 to form hinge seats. The hinge seats of each set of uprights 9 are hinged to the middle of the swing plate 10 through a horizontally set hinge shaft. The swing plate 10 is a long strip-shaped plate, with one end extending towards the lifting base 210 and the end fixedly connected to the side of the outer folding mold 3 away from the arc-shaped folding edge; the other end extends away from the lifting base 210 to form a drive end for connecting the drive component. The swing plate 10 can swing vertically relative to the uprights 9 around the hinge shaft, and the swing range covers from the initial position to the position where the outer folding mold 3 contacts the outer side of the upper opening of the outer shell 20.

[0038] A contact wheel 11 is provided on the side of the swing plate 10 near the lifting base frame 210 and between the outer folding mold 3 and the hinge shaft. The contact wheel 11 is rotatably mounted on the swing plate 10 via a wheel axle. The axis of the wheel axle is parallel to the central axis of the rotating disk 220. The contact position of the outer peripheral surface of the contact wheel 11 corresponds to the position of the outer wall of the outer shell 20 at the fitting point between the outer shell 20 and the top cover 21.

[0039] Work process improvement: During the edge sealing preparation stage, after the supporting component 200 moves the outer shell 20 to the preset position, the driving ends of the two sets of swing plates 10 swing upward synchronously under the action of the driving component, causing the swing plates 10 to rotate around the hinge axis of the upright frame 9. The outer edge folding mold 3 and the abutting wheel 11 move synchronously towards the outer shell 20. The abutting wheel 11 first contacts the peripheral wall of the outer shell 20 and applies a preset pressure. As the swing plate 10 continues to swing, the arc-shaped folding part of the outer edge folding mold 3 gradually contacts the outer wall of the upper opening of the outer shell 20.

[0040] During the edge sealing process, the outer shell 20 and the top cover 21 rotate synchronously in opposite directions. The outer folding mold 3 and the inner folding mold 5 apply bending force to the upper edge of the outer shell 20, generating a combined radial and circumferential traction force. Under this condition, the abutting wheel 11 always abuts against the peripheral wall below the fitting part of the outer shell 20 with a preset pressure and rolls synchronously with the outer shell 20, forming a radial constraint on the area below the fitting part through friction.

[0041] Specifically, the preset pressure originates from the swing driving force of the swing plate 10, which is transmitted through the lever of the swing plate to the contact surface between the abutment wheel 11 and the outer shell 20, forming a normal positive pressure at the contact surface. Due to the static friction coefficient between the outer circumferential surface of the abutment wheel 11 and the peripheral wall of the outer shell 20, this normal positive pressure generates a static friction force along the tangential direction of the peripheral wall of the outer shell 20. The direction of the static friction force is opposite to the direction of the radial traction component generated by the bending force during the edge sealing process, and as a radial constraint force, it is transmitted upward through the wall of the outer shell 20 to the fitting point and the edge sealing processing area, limiting the radial misalignment of the outer shell 20 at the fitting point. At the same time, two sets of abutment wheels 11 symmetrically arranged on both sides apply radial constraint forces from both sides of the outer shell 20, forming a symmetrical constraint couple, which effectively counteracts the radial eccentric force that may be generated during the edge sealing process, so that the outer shell 20 maintains coaxiality with the top cover 21 during rotation.

[0042] When the traction force attempts to cause relative sliding between the mating point of the outer shell 20 and the top cover 21, the static friction force applied by the abutment wheel 11 restricts the displacement of the outer shell 20 at the mating point, keeping the outer shell 20 and the top cover 21 at both ends of the mating point relatively stationary and preventing misalignment.

[0043] After the edge sealing is completed, the drive end of the swing plate 10 swings downward, causing the outer folding mold 3 and the abutment wheel 11 to move away from the outer shell 20 in sync and return to the initial position.

[0044] The abutment roller 11, in response to the multi-directional traction force generated during the edge sealing process, forms a rigid constraint by abutting the area below the fitting point of the outer shell 20, directly preventing the relative sliding of the outer shell 20 and the top cover 21 at the fitting point, ensuring that the two maintain a precise fitting position relationship during the folding process; the two sets of symmetrically distributed abutment rollers 11 apply balanced pressure from both sides, which can counteract the radial eccentric force generated during edge sealing, preventing the outer shell 20 from tilting due to unilateral force, and further enhancing the stability of the fitting point; the rolling cooperation between the abutment roller 11 and the outer shell 20 provides constraint while not hindering the normal rotation of the outer shell 20, ensuring the continuity of the edge sealing, and maintaining sufficient static friction through preset pressure to effectively resist traction force; its linkage structure with the outer folding mold 3 enables the constraint effect to start synchronously with the edge sealing action, ensuring that the fitting point remains stable throughout the entire edge sealing process, reducing defects such as edge cracking and poor sealing caused by misalignment, and improving the product qualification rate.

[0045] Furthermore, the guide rods 12 are two cylindrical rods, arranged vertically parallel below the top crossbeam of the frame 1, respectively located directly above the two sets of uprights 9. The top ends of the guide rods 12 are fixedly connected to the top crossbeam of the frame 1, and the bottom ends extend towards the lifting base 210. The two inner folding molds 5 are fixedly connected to the bottom ends of the two guide rods 12 through suspension brackets, symmetrically distributed on both sides of the central axis of the rotating disk 220. The linear drive component 13 is a vertically arranged cylinder or electric actuator. The cylinder body is fixed at the center position of the top crossbeam of the frame 1, and the output end extends downward and connects to the center of the upper surface of the synchronization plate 14. The synchronization plate 14 is a horizontal plate structure with sliding holes at both ends that are adapted to the guide rods 12. The two guide rods 12 are arranged through the sliding holes, allowing the synchronization plate 14 to slide vertically along the guide rods 12. The top pressure frame 4 is also slidably sleeved on the two guide rods 12, located below the synchronization plate 14.

[0046] The second elastic element 15 consists of two helical springs, which are respectively sleeved on the outside of the two guide rods 12. The top end of the spring abuts against the lower surface of the synchronization plate 14, and the bottom end abuts against the upper surface of the top pressure frame 4. In its natural state, the second elastic element 15 is in a slightly compressed state, so that the top pressure frame 4 and the synchronization plate 14 maintain a preset distance.

[0047] Work process improvement: During the fitting preparation stage, the output end of the linear drive 13 extends out, pushing the synchronous plate 14 to slide downward along the guide rod 12. The second elastic element 15 moves down accordingly and pushes the top pressure frame 4 to move down synchronously along the guide rod 12, causing the top cover 21 at the lower end of the rotating shaft 401 to move closer to the outer shell 20.

[0048] During the fitting process, after the top cover 21 contacts the opening of the outer shell 20, the linear drive 13 continues to push the synchronous plate 14 downward. The second elastic element 15 is further compressed and applies a downward fitting force to the top cover 21 through the top pressure frame 4, completing the fitting in conjunction with the rotation of the top cover 21. After the fitting is completed, the linear drive 13 remains in the output state, and the lifting base 210 drives the outer shell 20 and the top cover 21 to move upward synchronously. The top cover 21 pushes the top pressure frame 4 to slide upward along the guide rod 12 through the rotating shaft 401. The second elastic element 15 is compressed by the top pressure frame 4 and the synchronous plate 14, and its elastic restoring force continues to act on the top pressure frame 4, keeping the top cover 21 and the outer shell 20 in a stable embedded state. During the edge sealing process, the elastic force of the second elastic element 15 always maintains the fitting pressure between the top cover 21 and the outer shell 20, offsetting the traction force generated during the edge sealing process, and further preventing misalignment at the fitting point in conjunction with the abutment wheel 11.

[0049] Two guide rods 12 provide precise vertical guidance for the top pressure frame 4 and the synchronous plate 14, ensuring that the top cover 21 and the outer shell 20 are aligned and avoiding misalignment during fitting. The second elastic element 15 transmits the fitting force through elastic force, which can buffer the impact force during the fitting process and prevent damage to the top cover 21 or the outer shell 20 caused by rigid contact. During the upward movement of the outer shell 20, the compression of the second elastic element 15 is automatically adjusted with the displacement to maintain a stable fitting pressure and ensure that the top cover 21 and the outer shell 20 do not slide relative to each other throughout the sealing process. The cooperation between the linear drive element 13 and the synchronous plate 14 realizes the balanced transmission of force on both sides of the two guide rods 12. With the symmetrically distributed inner folding mold 5, the overall force of the equipment is more uniform, improving the stability of operation. The elastic buffer structure allows the equipment to adapt to the processing requirements of filters with different fitting depths, enhancing its versatility.

[0050] Furthermore, each of the two side walls of the lifting base 210 is provided with a pusher frame 16. The pusher frame 16 has an L-shaped plate structure, and its vertical plate is slidably engaged with the inner side wall of the upright frame 9. The upright frame 9 is provided with a corresponding vertical slide rail, so that the pusher frame 16 can be stably raised and lowered along the upright frame 9. The horizontal plate of the pusher frame 16 is fixedly connected to the outer side wall of the lifting base 210 and rises and falls synchronously with the lifting base 210.

[0051] A strip-shaped through groove 1001 is formed in the middle of the swing plate 10. The strip-shaped through groove 1001 extends horizontally through the swing plate 10 in a direction perpendicular to the swing axis, and the width of the groove is adapted to the diameter of the sliding rod 1601. A sliding rod 1601 extending horizontally towards the swing plate 10 is provided at the top of the vertical plate of the push frame 16. The sliding rod 1601 is cylindrical, and its end passes through the strip-shaped through groove 1001 and is provided with a limiting cap to prevent it from disengaging from the through groove. The sliding rod 1601 can slide along the length of the strip-shaped through groove 1001 and rotate relative to the groove wall.

[0052] Workflow Supplement: After the fitting condition is completed, the lifting base 210 drives the push frame 16 to slide upward. The sliding rod 1601 rises with the push frame 16 and slides along the strip through groove 1001. It abuts against the groove wall on the side away from the lifting base 210, pushing the swing plate 10 to swing upward around the hinge axis of the upright frame 9. The outer folding mold 3 and the abutting wheel 11 move synchronously towards the direction close to the outer shell 20 until the abutting wheel 11 contacts the peripheral wall of the outer shell 20 and the outer folding mold 3 reaches the working position.

[0053] After the edge sealing is completed, the lifting base 210 drives the push frame 16 to slide downward, and the sliding rod 1601 moves down and abuts against the groove wall of the strip groove 1001 on the side close to the lifting base 210. This pulls the swing plate 10 to swing downward, and the outer folding mold 3 and the abutting wheel 11 move away from the outer shell 20 in sync, returning to the initial position.

[0054] Beneficial effects: By sliding the pusher 16 and the swing plate 10 together, the lifting action of the lifting base 210 is directly converted into the swing action of the swing plate 10, realizing the linkage control between the outer folding mold 3 and the supporting component 200. No additional drive components are required, simplifying the equipment structure and reducing energy consumption. The cooperation between the strip groove 1001 and the sliding rod 1601 allows the swing plate 10 to generate relative displacement compensation during the swinging process, ensuring smooth connection between the lifting and swinging actions. The pushers 16 arranged symmetrically on both sides make the swing plate 10 bear force evenly, avoiding the swinging deviation caused by unilateral drive, and ensuring the alignment accuracy between the outer folding mold 3 and the outer shell 20. The linkage structure makes the approaching or moving away action of the outer folding mold 3 strictly synchronized with the lifting action of the outer shell 20, reducing the waiting time between processes and improving production efficiency. The linkage of actions through mechanical structure is faster than electrical control and avoids the action misalignment caused by the delay of the control system, improving the stability of equipment operation.

[0055] Furthermore, a one-way bearing, acting as a one-way limiting component, is fitted between the rotating disk 220 and the lifting base 210. Its outer ring is fixed to the inner wall of the annular groove of the lifting base 210 by an interference fit, and its inner ring is rigidly connected to the outer wall of the rotating disk 220, so that the rotating disk 220 can only rotate freely relative to the lifting base 210 in the opposite direction of rotation required for the sealing operation, while forming a lock in the forward rotation direction of the fitting operation.

[0056] The model of the one-way bearing is selected to match the load requirements of the equipment. Its rated static torque is not less than the maximum rotational resistance torque generated during the sealing process, ensuring that slippage does not occur when the outer shell 20 and the top cover 21 rotate synchronously. The bearing is equipped with a pawl-type or wedge-type locking structure. When the rotating disk 220 has a forward rotation tendency, the internal structure automatically locks, restricting the rotation of the rotating disk 220 by the fixed relationship between the outer ring and the lifting base 210; when the rotating disk 220 rotates in the opposite direction, the internal structure releases the lock, allowing free rotation.

[0057] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A filter press assembly apparatus for assembling a top cover (21) to a housing (20) to form a filter, characterized in that, include: A frame (1) is provided with a support assembly (200) that is raised and lowered on the frame (1). The support assembly (200) is used to support the outer shell (20) and drive the outer shell (20) to move up and down. The support assembly (200) is provided with a one-way limiting member for limiting the one-way rotation of the outer shell (20). The outer folding mold (3) is oscillatingly mounted on the frame and located on the side of the support assembly (200); Top pressure frame (4), the top pressure frame (4) is lifted and installed on the frame (1) and located above the support assembly (200). The top pressure frame (4) is rotatably provided with a downwardly extending rotating shaft (401). The rotating shaft (401) is used to hoist the top cover (21) and drive the top cover (21) to rotate. The inner folding mold (5) is suspended on the frame (1) and is located above the outer folding mold (3); The top pressure frame (4) and the support assembly (200) can drive the top cover (21) and the outer shell (20) to move closer to each other, and drive the top cover (21) to rotate relative to the outer shell (20) by means of the rotating shaft (401), so that the top cover (21) gradually embeds into the upper end of the outer shell (20); after the outer shell (20) and the top cover (21) are embedded, the support assembly (200) can drive the outer shell (20) to move up to the inner folding mold (5) to enter the upper opening of the outer shell (20), the outer folding mold (3) can swing vertically to the outside of the upper opening of the outer shell (20), and the rotating shaft (401) can drive the outer shell (20) and the top cover (21) to rotate in opposite directions, so that the inner folding mold (5) and the outer folding mold (3) respectively press against the inner and outer sides of the outer shell (20) to form an opening seal.

2. The filter press assembly apparatus of claim 1, wherein, The support component (200) includes: A lifting base (210) is provided, on which a rotating disk (220) is rotatably mounted, and a one-way limiting member is provided between the rotating disk (220) and the lifting base (210); A plurality of side wall clamps (230) are provided and arranged circumferentially on the rotating disk (220). The side wall clamps (230) are slidably arranged along the radial direction of the rotating disk (220). The plurality of side wall clamps (230) form a receiving space (231) for accommodating the outer shell (20). The side wall clamps (230) are configured to slide close to each other to clamp the outer shell (20).

3. The filter pressing and assembly equipment according to claim 2, characterized in that, The outer folding mold (3) has an outer guide forming groove (301) on the side wall near the rotating shaft (401), and the inner folding mold (5) has an inner forming pressing arc surface (302) on the side wall away from the rotating shaft (401). The outer folding mold (3) is also provided with a mold closing clearance groove (303) for avoiding the inner folding mold (5). The inner folding mold (5) can enter the mold closing clearance groove (303) when the outer folding mold (3) swings close to the outer shell.

4. The filter pressing and assembly equipment according to claim 2, characterized in that, Also includes: A pre-compression top member (17) is radially slidably disposed on the side wall block (230). The pre-compression top member (17) is also provided with a third elastic member (18). The other end of the third elastic member (18) acts on the side wall block (230). The third elastic member (18) is used to elastically push the pre-compression top member (17) towards the receiving space (231). The pre-compression top member (17) is configured to always extend into the receiving space (231) and abut against the outer wall of the filter housing (20). After the side wall block (230) contracts, it compresses the third elastic member (18) to increase the squeezing force between the pre-compression top member (17) and the filter housing (20).

5. The filter pressing and assembly equipment according to claim 2, characterized in that, The sidewall locking block (230) has an outwardly and downwardly extending outwardly and downwardly inclined outer abutment surface (232), and also includes: The supporting base block (6) is slidably mounted on the rotating disk (220) and located at the bottom of the accommodating space (231). The supporting base block (6) is used to support the bottom of the filter housing (20). The rotating disk (220) is provided with a limiting platform (222) that extends upward to limit the lifting and lowering movement of the supporting base block (6). The lifting ring (7) is slidably sleeved on the outer periphery of several side wall clamps (230). The supporting bottom block (6) is connected to the lifting ring (7) through a connecting arm. The connecting arm passes through the limiting platform (222). The inner side of the lifting ring (7) is provided with an inner abutting slope (8) that extends outward and downward. The supporting bottom block (6) drives the lifting ring (7) to move down synchronously under the downward movement of the outer shell (20). With the sliding cooperation of the inner abutting slope (8) and the outer abutting slope (232), the several side wall clamps (230) move closer to each other to clamp the outer shell (20).

6. The filter pressing and assembly equipment according to claim 5, characterized in that, The limiting platform (222) is provided with an upward-opening and radially extending guide groove (221). The side wall block (230) is provided with a sliding part (233) that is slidably disposed in the guide groove (221). A first elastic member (81) is provided between the sliding part (233) and the guide groove (221). One end of the first elastic member (81) acts on the sliding part (233) and the other end acts on the side wall of the guide groove (221) to elastically push the sliding part (233) to slide away from the center of the rotating disk (220).

7. The filter pressing and assembly equipment according to claim 2, characterized in that, The frame (1) is provided with two sets of upwardly extending uprights (9). The two sets of uprights (9) are symmetrically arranged on both sides of the lifting base (210). Each set of uprights (9) is provided with a swing plate (10) for installing the outer edge folding mold (3). The swing plate (10) is also provided with abutting wheel (11) for abutting and rolling with the periphery of the outer shell (20). The swing plate (10) can swing vertically relative to the uprights (9) to drive the outer edge folding mold (3) and the abutting wheel (11) to move closer to or away from the outer shell (20).

8. The filter pressing and assembly equipment according to claim 7, characterized in that, Also includes: Guide rod (12), the guide rod (12) is vertically arranged on the top of the frame (1), there are two guide rods (12) and they are respectively located above the two sets of the uprights (9), and there are two inner folding molds (5) and they are respectively connected to the bottom ends of the two guide rods (12); A linear drive unit (13) is disposed on the top of the frame (1). The output end of the linear drive unit (13) is disposed downward and connected to a synchronization plate (14). Two guide rods (12) are disposed through the synchronization plate (14) and are slidably engaged with the synchronization plate (14). The top pressure frame (4) is slidably disposed on the two guide rods (12). The second elastic element (15) is connected between the synchronous plate (14) and the top pressure frame (4). The second elastic element (15) can drive the top pressure frame (4) and the top cover (21) to move down synchronously under the driving action of the linear drive (13). After the top cover (21) is embedded in the outer shell (20), the lifting base frame (210) can drive the filter shell (20) to move up and push the top pressure frame (4) up with the help of the top cover (21), and compress the second elastic element (15) to keep the top cover (21) and the outer shell (20) embedded.

9. A filter pressing and assembly device according to claim 7, characterized in that, The lifting base (210) is provided with two push frames (16) that correspond one-to-one with the upright frame (9). The push frames (16) are vertically slidably arranged on the upright frame (9). A horizontal through slot (1001) is opened on the swing plate (10). The through slot (1001) is parallel to the swing axis of the swing plate (10). A horizontally extending sliding rod (1601) is provided at the top of the push frame (16). The sliding rod (1601) is slidably arranged in the through slot (1001). The pusher (16) is configured such that after being driven up or down by the lifting base (210), it pushes the swing plate (10) to swing vertically through the sliding contact between the strip groove (1001) and the sliding rod (1601), so as to drive the outer folding mold (3) to move closer to or away from the outer shell (20).

10. A filter pressing and assembly device according to any one of claims 1-9, characterized in that, The one-way limiting component is a one-way bearing.

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