Gas filter paper folding device

By designing a gas filter paper folding device, and using a servo motor and hydraulic cylinder to control the folding and cutting of the filter paper, the problem of increased volume in the wavy collection of filter paper was solved, achieving efficient filter paper cutting and collection, and improving the adaptability of the device.

CN224172174UActive Publication Date: 2026-04-28SUZHOU LANTIAN FILTERS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU LANTIAN FILTERS CO LTD
Filing Date
2025-05-30
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

In existing technologies, the surface of gas filter paper is wavy after folding, which increases the volume when collected in rolls, affecting the collection length and thus having certain limitations.

Method used

A gas filter paper folding device was designed, including a conveying and cutting component. The folding roller is driven by a servo motor, pulleys and transmission belt to fold the filter paper. The piston push rod and linkage arm are controlled by hydraulic cylinder and air cylinder to realize the clamping, limiting and cutting of the filter paper. Finally, the filter paper falls into the collection hopper by gravity for collection.

Benefits of technology

It achieves efficient cutting and collection of filter paper, improves adaptability in use, solves the limitations in collection, and enhances the flexibility of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the field of filter paper folding, and particularly relates to a gas filter paper folding device which comprises a main body and a conveying and slitting assembly, the conveying and slitting assembly is provided with a base, and an air cylinder is hinged to the top of the base. When the filter paper is conveyed to a slitting position, a hydraulic cylinder on a mounting plate on the side of a base acts, a piston rod pushes a top plate and a protection bin to ascend and descend, placement and clamping limiting of the filter paper are achieved, a second servo motor on the side of the protection bin is started, a conveying roller is driven by a belt wheel and a transmission belt, the filter paper is moved between a slitting tool and a slitting plate, and an air cylinder works; a piston push rod is in linkage with a linkage arm, a movable rod and a movable arm, under the action of a limiting rod and a limiting sliding block, a slitting tool ascends and descends to complete slitting, the slit filter paper falls into a collecting hopper on a bearing table through gravity, a worker can move the collecting hopper to be transferred and stored, the slitting and collecting functions are achieved, and the problem that certain limitation exists in the collecting process is solved; and the adaptability in use is improved.
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Description

Technical Field

[0001] This utility model relates to the field of filter paper folding, specifically a gas filtration filter paper folding device. Background Technology

[0002] Gas filter paper typically has a porous structure with interconnected pores of varying sizes. Its filtration principle is primarily based on sieving, inertial impaction, diffusion, and electrostatic adsorption. When gas containing impurities passes through the filter paper, particles larger than the pore size are directly intercepted; smaller particles, due to inertia, deviate from the airflow direction and collide with the filter paper fibers, becoming trapped; and some tiny particles diffuse to the filter paper fiber surface through Brownian motion and are adsorbed. Furthermore, if the filter paper surface carries static electricity, it can also attract charged particles through electrostatic attraction, thus achieving gas purification and filtration.

[0003] Chinese Patent No. CN201921454215.5 discloses a filter paper indentation and folding device for a filter element, comprising two fixed plates, which are vertically arranged and connected by a horizontal support rod. Each fixed plate has a bearing slider inlet corresponding to its upper edge. A lead screw fixing plate is fixed at the opening of each bearing slider inlet. An adjusting lead screw is vertically arranged on the lead screw fixing plate. The upper and lower ends of the adjusting lead screw are respectively connected to the bottom of the lead screw fixing plate and the bearing slider inlet. A bearing slider is inserted into each bearing slider inlet. The bearing slider is embedded with a lead screw nut and connected to the adjusting lead screw through the lead screw nut.

[0004] As can be seen from the above, the width of the local creasing of the filter paper can be adjusted by appropriately setting the position of the creasing knife on the first and second creasing rollers according to the width of the filter paper, that is, the gap between the folds of the filter paper. However, this case still has the following shortcomings: In the process of creasing and folding the filter paper, since the surface of the filter paper is wavy after folding, the existing technology usually collects the paper or strip material in rolls. At this time, when collecting the creasing and folded filter paper in rolls, the volume of the roll of filter paper will increase due to the wavy undulation of the creasing and folding surface of the filter paper, which will directly affect the length of the filter paper collected, resulting in certain limitations in the collection process.

[0005] Therefore, a gas filter paper folding device is proposed to address the above problems. Utility Model Content

[0006] To overcome the shortcomings of existing technologies and the limitations in collection, this utility model proposes a gas filter paper folding device.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: The gas filter paper folding device of this utility model includes a main body and a conveying and cutting assembly; the conveying and cutting assembly is equipped with a base, a cylinder is hinged to the top of the base, a piston push rod is movably installed at the output end of the cylinder, a linkage arm is hinged to one end of the piston push rod, a connecting rod is movably installed through and on one side of the linkage arm, the back side of the connecting rod is fixedly installed to the base, a movable rod is hinged to the other end of the linkage arm, a limit arm is hinged to the other end of the movable rod, and the other end of the limit arm is hinged to the base.

[0008] Preferably, the main body is equipped with a fixed frame, and two first servo motors are fixedly installed on one side of the fixed frame. The output ends of the two first servo motors are respectively fixedly installed with first pulleys. One side of the two first pulleys is respectively connected to a first transmission belt. The other end of the two first transmission belts is respectively connected to a second pulley. Folding rollers are fixedly installed through and on the two second pulleys. The two folding rollers are movably installed on one side of the fixed frame, and the two folding rollers are clearance-fitted. A transmission belt is fixedly installed on one side of the top of the fixed frame, and two guide rods are fixedly installed on the top of the fixed frame.

[0009] Preferably, the bottom of the movable rod is hinged with two movable arms, the other end of the two movable arms is hinged with a slitting cutter, the base is fixedly installed with four limiting rods, each of the four limiting rods is movably installed with a limiting slider, the four limiting sliders are fixedly installed with the slitting cutter, and the top of the base is fixedly installed with a slitting plate.

[0010] Preferably, a support platform is fixedly installed on one side of the back of the base, and a collection hopper is placed on top of the support platform.

[0011] Preferably, a mounting plate is fixedly installed on one side of the base, a hydraulic cylinder is fixedly installed on the top of the mounting plate, a top plate is fixedly installed at the bottom of the output end of the hydraulic cylinder, and four springs are fixedly installed on the top of the top plate, with the tops of the four springs being fixedly connected to the bottom of the mounting plate.

[0012] Preferably, a protective chamber is fixedly installed at the bottom of the top plate, a second servo motor is fixedly installed on one side of the protective chamber, a third pulley is fixedly installed at the output end of the second servo motor, a second transmission belt is driven around the third pulley, a fourth pulley is driven on the other side of the second transmission belt, a conveying roller is fixedly installed through and on one side of the back of the fourth pulley, the conveying roller is movably installed through and in the inner cavity of the protective chamber, and a support roller is movably installed on the top of the base.

[0013] The advantages of this utility model are:

[0014] This utility model, through the structural design of the conveying and slitting assembly, allows the filter paper to be conveyed to the slitting position. When the filter paper is conveyed, the hydraulic cylinder on the mounting plate on the base side activates, causing the piston rod to push the top plate and protective chamber to rise and fall, thus achieving placement and clamping limits for the filter paper. The second servo motor on the protective chamber side is activated, using pulleys and a transmission belt to drive the conveying rollers, moving the filter paper between the slitting cutter and the slitting plate. The cylinder then operates, with the piston rod linking the linkage arm, movable rod, and movable arm. Under the action of the limiting rod and the limiting slider, the slitting cutter rises and falls to complete the slitting. The slitting filter paper falls into the collection hopper on the support platform by gravity. Workers can move the collection hopper to transfer and store the filter paper, thus realizing the function of slitting and collecting. This solves the problem of certain limitations in collection and improves adaptability in use. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is an exploded view of the overall structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the conveying and cutting assembly structure of this utility model;

[0019] Figure 4 This utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle;

[0020] Figure 5 This is a schematic diagram of the main structure of this utility model.

[0021] In the diagram: 1. Main body; 2. Conveying and slitting assembly; 11. Fixing frame; 12. First servo motor; 13. First pulley; 14. First transmission belt; 15. Second pulley; 16. Folding roller; 17. Transmission belt; 18. Guide rod; 21. Base; 22. Cylinder; 23. Piston push rod; 24. Linkage arm; 25. Movable rod; 26. Limiting arm; 27. Movable arm; 28. Slitting cutter; 29. ​​Slitting plate; 31. Limiting rod; 32. Limiting slider; 33. Mounting plate; 34. Hydraulic cylinder; 35. Top plate; 36. Spring; 37. Protective chamber; 38. Second servo motor; 39. Third pulley; 41. Second transmission belt; 42. Fourth pulley; 43. Conveying roller; 44. Support roller; 45. Collection hopper; 46. Bearing platform; 47. Connecting rod. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0023] Please see Figures 1-5 As shown, a gas filter paper folding device includes a main body 1 and a conveying and slitting assembly 2. The conveying and slitting assembly 2 is equipped with a base 21. A cylinder 22 is hinged to the top of the base 21. A piston push rod 23 is movably installed at the output end of the cylinder 22. A linkage arm 24 is hinged to one end of the piston push rod 23. A connecting rod 47 is movably installed through one side of the linkage arm 24. The back side of the connecting rod 47 is fixedly installed to the base 21. A movable rod 25 is hinged to the other end of the linkage arm 24. A limit arm 26 is hinged to the other end of the movable rod 25. The other end of the limit arm 26 is hinged to the base 21.

[0024] During operation, the top components are fixed by the installation of the base 21. When the drive cylinder 22 works, the piston rod 23 at the output end will extend and retract. One side of the linkage arm 24 is limited by the connecting rod 47. When the piston rod 23 moves, it will link the linkage arm 24, causing the linkage arm 24 to move in a circle around the connection point of the connecting rod 47. The other end of the linkage arm 24 will link the movable rod 25, and the other end of the movable rod 25 will be limited by the limiting arm 26. Thus, one end of the linkage arm 24 will drive the movable rod 25 to make corresponding displacement.

[0025] Furthermore, the main body 1 is equipped with a fixed frame 11. Two first servo motors 12 are fixedly installed on one side of the fixed frame 11. First pulleys 13 are fixedly installed at the output ends of the two first servo motors 12 respectively. First transmission belts 14 are respectively connected to one side of the two first transmission belts 13. Second pulleys 15 are respectively connected to the other end of the two first transmission belts 14. Folding rollers 16 are fixedly installed through the two second pulleys 15. The two folding rollers 16 are movably installed on one side of the fixed frame 11, and the two folding rollers 16 are clearance-fitted. A transmission belt 17 is fixedly installed on one side of the top of the fixed frame 11. Two guide rods 18 are fixedly installed on the top of the fixed frame 11.

[0026] During operation, the gas filter paper is inserted through the gap between the two folding rollers 16 via the guide rod 18. At the same time, the first servo motor 12 drives the first pulley 13 at the output end to rotate. With the cooperation of the first pulley 13, the first transmission belt 14 and the second pulley 15, the rotational power is transmitted to the folding rollers 16. The gas filter paper is folded by the opposite rotation of the two folding rollers 16. At the same time, the folded gas filter paper is transported by the conveyor belt 17.

[0027] Furthermore, two movable arms 27 are hinged to the bottom of the movable rod 25, and a slitting cutter 28 is hinged to the other end of the two movable arms 27. Four limiting rods 31 are fixedly installed on the base 21. Limiting sliders 32 are movably installed on the four limiting rods 31 respectively. The four limiting sliders 32 are fixedly installed with the slitting cutter 28. A slitting plate 29 is fixedly installed on the top of the base 21.

[0028] During operation, when the movable rod 25 moves, the movable arm 27 hinged to the movable rod 25 moves in a circular motion at the hinge of the slitting cutter 28. Since the slitting cutter 28 is limited by the combination of the limiting rod 31 and the limiting slider 32, the slitting cutter 28 will rise and fall accordingly with the movement of the movable rod 25. The slitting cutter 28 moves up and down in coordination with the slitting plate 29 to slitting the folded gas filter paper.

[0029] Furthermore, a support platform 46 is fixedly installed on one side of the back of the base 21, and a collection hopper 45 is placed on top of the support platform 46.

[0030] During operation, the top of the support platform 46 supports the collection hopper 45. With the collection hopper 45 in place, the gas filter paper that has been cut will fall with its own weight until it falls into the collection hopper 45 for collection. Personnel can transfer and store the cut gas filter paper through the movable collection hopper 45.

[0031] Furthermore, a mounting plate 33 is fixedly installed on one side of the base 21, a hydraulic cylinder 34 is fixedly installed on the top of the mounting plate 33, a top plate 35 is fixedly installed at the bottom of the output end of the hydraulic cylinder 34, and four springs 36 are fixedly installed on the top of the top plate 35. The tops of the four springs 36 are fixedly connected to the bottom of the mounting plate 33.

[0032] During operation, the hydraulic cylinder 34 is driven to convert hydraulic energy into mechanical energy, which drives the piston rod of the actuator at the output end to push the top plate 35 to move linearly. With the installation of the spring 36, the stability of the top plate 35 during the movement is guaranteed.

[0033] Furthermore, a protective chamber 37 is fixedly installed at the bottom of the top plate 35, a second servo motor 38 is fixedly installed on one side of the protective chamber 37, a third pulley 39 is fixedly installed at the output end of the second servo motor 38, a second transmission belt 41 is connected around the third pulley 39, a fourth pulley 42 is connected to the other side of the second transmission belt 41, a conveying roller 43 is fixedly installed through one side of the back of the fourth pulley 42, the conveying roller 43 is installed through and movably installed in the inner cavity of the protective chamber 37, and a support roller 44 is movably installed on the top of the base 21.

[0034] During operation, when the top plate 35 is linearly raised and lowered, it drives the protective chamber 37 and the components installed on the protective chamber 37 to rise and fall synchronously. When the protective chamber 37 is raised, the gas filter paper is placed between the conveying roller 43 and the support roller 44. At this time, the hydraulic cylinder 34 is driven to lower the protective chamber 37, clamping and limiting the gas filter paper between the conveying roller 43 and the support roller 44. The second servo motor 38 is driven to make the conveying roller 43 rotate in the inner cavity of the protective chamber 37. The gas filter paper is moved by one side of the conveying roller 43, thereby moving the gas filter paper between the slitting cutter 28 and the slitting plate 29.

[0035] Working principle: The gas filter paper is threaded through the gap between two folding rollers 16. The two first servo motors 12 on one side of the fixed frame 11 are started. The first pulley 13 at the output end of the first servo motor 12 begins to rotate. With the cooperation of the first pulley 13, the first transmission belt 14, and the second pulley 15, the rotational power is transmitted to the folding rollers 16. The opposite rotation directions of the two folding rollers 16 apply force to the gas filter paper, thereby folding the filter paper. The folded filter paper is then conveyed by the conveyor belt 17. During the process of conveying the filter paper to the slitting position, the hydraulic cylinder 34 fixedly mounted on the top of the mounting plate 33 on one side of the base 21 begins to work. The hydraulic cylinder 34 converts hydraulic energy into mechanical energy, driving the actuator at the output end. The stopcock pushes the top plate 35 to move linearly. The protective chamber 37 fixedly installed at the bottom of the top plate 35 and the components inside the protective chamber 37 will rise and fall synchronously with the top plate 35. When the protective chamber 37 rises, the gas filter paper is placed between the conveying roller 43 and the support roller 44. Then, the hydraulic cylinder 34 is driven to lower the protective chamber 37, thereby clamping and limiting the gas filter paper between the conveying roller 43 and the support roller 44. Next, the second servo motor 38 on one side of the protective chamber 37 is started. The third pulley 39 at the output end of the second servo motor 38 drives the fourth pulley 42 to rotate through the second transmission belt 41. This causes the conveying roller 43 fixed on the fourth pulley 42 to rotate inside the protective chamber 37. The rotation of the conveying roller 43 drives the gas filter paper to move. The filter paper is accurately moved between the slitting blade 28 and the slitting plate 29 for slitting. The drive cylinder 22 starts working, and the piston rod 23 at the output end of the cylinder 22 extends and retracts. Because one side of the linkage arm 24 is limited by the connecting rod 47, the movement of the piston rod 23 will have a linkage effect on the linkage arm 24, causing the linkage arm 24 to move in a circular motion around the connection point with the connecting rod 47. The other end of the linkage arm 24 is hinged to a movable rod 25, the other end of which is limited by a limiting arm 26. Thus, the circular motion of the linkage arm 24 will cause the movable rod 25 to move accordingly. Two movable arms 27 are hinged to the bottom of the movable rod 25. As the movable rod 25 moves, the movable arms 27 will... The hinge joint with the slitting cutter 28 allows for circular movement. Simultaneously, four limiting rods 31 fixedly mounted on the base 21 and four limiting sliders 32 movably mounted on the limiting rods 31, along with the limiting sliders 32, are fixedly installed with the slitting cutter 28, thus limiting its movement. Therefore, the slitting cutter 28 rises and falls accordingly with the movement of the movable rod 25. When the slitting cutter 28 descends, it cooperates with the slitting plate 29 to slit the folded gas filter paper. After slitting, the support platform 46 fixedly mounted on one side of the back of the base 21, with its collection hopper 45 on top, begins to function. The slitted gas filter paper falls due to its own weight until it enters the collection hopper 45 for collection.Staff can use the movable collection hopper 45 to transfer and store the slit filter paper.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are only illustrative of the principles of this utility model. Various changes and modifications may be made to this utility model without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of this utility model as claimed.

Claims

1. A gas filter paper folding device, characterized in that: The system includes a main body (1) and a conveying and cutting assembly (2). The conveying and cutting assembly (2) is equipped with a base (21). A cylinder (22) is hinged to the top of the base (21). A piston push rod (23) is movably installed at the output end of the cylinder (22). A linkage arm (24) is hinged to one end of the piston push rod (23). A connecting rod (47) is movably installed through one side of the linkage arm (24). The back side of the connecting rod (47) is fixedly installed to the base (21). A movable rod (25) is hinged to the other end of the linkage arm (24). A limit arm (26) is hinged to the other end of the movable rod (25). The other end of the limit arm (26) is hinged to the base (21).

2. The gas filter paper folding device according to claim 1, characterized in that: The main body (1) is equipped with a fixed frame (11). Two first servo motors (12) are fixedly installed on one side of the fixed frame (11). The output ends of the two first servo motors (12) are respectively fixedly installed with first pulleys (13). One side of the two first pulleys (13) is respectively connected to a first transmission belt (14). The other end of the two first transmission belts (14) is respectively connected to a second pulley (15). The two second pulleys (15) are connected through and fixedly installed with folding rollers (16). The two folding rollers (16) are movably installed on one side of the fixed frame (11), and the two folding rollers (16) are clearance-fitted. A transmission belt (17) is fixedly installed on one side of the top of the fixed frame (11). Two guide rods (18) are fixedly installed on the top of the fixed frame (11).

3. The gas filter paper folding device according to claim 1, characterized in that: The bottom of the movable rod (25) is hinged with two movable arms (27), and the other end of the two movable arms (27) is hinged with a slitting cutter (28). The base (21) is fixedly installed with four limiting rods (31). Each of the four limiting rods (31) is movably installed with a limiting slider (32). The four limiting sliders (32) are fixedly installed with the slitting cutter (28). The top of the base (21) is fixedly installed with a slitting plate (29).

4. The gas filter paper folding device according to claim 3, characterized in that: A support platform (46) is fixedly installed on one side of the back of the base (21), and a collection hopper (45) is placed on the top of the support platform (46).

5. A gas filter paper folding device according to claim 4, characterized in that: A mounting plate (33) is fixedly installed on one side of the base (21). A hydraulic cylinder (34) is fixedly installed on the top of the mounting plate (33). A top plate (35) is fixedly installed at the bottom of the output end of the hydraulic cylinder (34). Four springs (36) are fixedly installed on the top of the top plate (35). The tops of the four springs (36) are fixedly connected to the bottom of the mounting plate (33).

6. The gas filter paper folding device according to claim 5, characterized in that: A protective chamber (37) is fixedly installed at the bottom of the top plate (35). A second servo motor (38) is fixedly installed on one side of the protective chamber (37). A third pulley (39) is fixedly installed at the output end of the second servo motor (38). A second transmission belt (41) is connected around the third pulley (39). A fourth pulley (42) is connected on the other side of the second transmission belt (41). A conveying roller (43) is fixedly installed through one side of the back of the fourth pulley (42). The conveying roller (43) is installed through and movably in the inner cavity of the protective chamber (37). A support roller (44) is movably installed on the top of the base (21).

Citation Information

Patent Citations

  • Filter paper indentation folding device of filter element

    CN210733445U