A paper folding machine for folding filter paper

Abstract

The invention discloses a paper folding machine for folding filter paper, comprising: a base frame, a workbench is arranged on the base frame; a heating device is arranged on the base frame, and the heating device can heat the filter paper; a paper folding mechanism is arranged on the base frame and located on one side of the heating device, and the paper folding mechanism can fold the filter paper and drive the filter paper to move into the heating device. By arranging the heating device and the paper folding mechanism on the base frame, the paper folding mechanism can fold the filter paper placed on the workbench and push the folded filter paper into the heating device, and the heating device heats and shapes the filter paper, so that the filter paper maintains the folded shape, abandoning the traditional production method that relies on workers to fold paper manually, reducing the labor intensity of workers, improving the folding efficiency of the filter paper, and the folding quality of the filter paper is stable and reliable.

Description

Technical Field

[0001] The invention relates to the field of filter device production, in particular to a paper folding machine for folding filter paper. Background Art

[0002] As we all know, the filtration device mainly relies on the filter element to filter air or water. Some of the filter elements are paper filter elements. In order to make the paper filter element better filter air or water, when the company produces the paper filter element, it is generally necessary to fold a flat filter paper repeatedly to form a corrugated shape, thereby increasing the contact area between the filter paper and the air or water and enhancing the filtration performance of the paper filter element.

[0003] However, most of the existing enterprises still rely on workers to manually fold filter paper, which not only has high labor intensity and low efficiency, but also the workers' proficiency will affect the quality of filter paper folding. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a paper folding machine for folding filter paper, which can replace workers to fold filter paper, reduce the labor intensity of workers, and help improve the folding efficiency of filter paper.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] According to some embodiments of the present invention, a paper folding machine for folding filter paper comprises: a base frame, on which a workbench is arranged; a heating device, which is arranged on the base frame, and the heating device can heat the filter paper; a paper folding mechanism, which is arranged on the base frame and located on one side of the heating device, and the paper folding mechanism can fold the filter paper and drive the filter paper to move into the heating device; wherein the paper folding mechanism comprises a first rotating shaft and a second rotating shaft which are movably mounted on the base frame and can be lifted up and down, and the first rotating shaft and the second rotating shaft are arranged one by one above and below the workbench; a first folding knife is arranged on the first rotating shaft, a first rotating driving mechanism for driving the first folding knife to rotate around the first rotating shaft is arranged on the base frame, and a first lifting driving mechanism for driving the first rotating shaft to move up and down is arranged on the base frame; a second folding knife is arranged on the second rotating shaft, a second rotating driving mechanism for driving the second folding knife to rotate around the second rotating shaft is arranged on the base frame, and a second lifting driving mechanism for driving the second rotating shaft to move up and down is arranged on the base frame.

[0007] In some embodiments of the present invention, a first guide rail arranged in a vertical direction is provided on an upper portion of a side wall of the base frame, a first sliding seat is movably provided on the first guide rail, and the first rotating shaft is provided on the first sliding seat.

[0008] In certain embodiments of the present invention, the first lifting drive mechanism includes: a second servo motor, which is arranged on the base frame, and the output shaft of the second servo motor is connected to the second drive shaft; a second rocker arm, one end of the second rocker arm is fixedly connected to the second drive shaft; and a second connecting rod, one end of the second connecting rod is rotatably connected to the other end of the second rocker arm, and the other end of the second connecting rod is rotatably connected to the first rotating shaft.

[0009] In some embodiments of the present invention, a second through hole is formed at one end of the second connecting rod connected to the first rotating shaft, and the first rotating shaft is movably installed in the second through hole.

[0010] In certain embodiments of the present invention, the first rotation drive mechanism includes: a first servo motor, which is arranged on the base frame, and the output shaft of the first servo motor is connected to the first drive shaft; a first rocker arm, one end of which is fixedly connected to the first drive shaft; a first connecting rod, one end of which is rotatably connected to the other end of the first rocker arm, and a first driving rod, one end of which is rotatably connected to the other end of the first connecting rod, and the other end of the first driving rod is connected to the first folding knife or the first rotating shaft.

[0011] In some embodiments of the present invention, a second guide rail arranged in a vertical direction is provided on an upper portion of a side wall of the base frame, a second sliding seat is movably provided on the second guide rail, and the second rotating shaft is provided on the second sliding seat.

[0012] In certain embodiments of the present invention, the second lifting drive mechanism includes: a fourth servo motor, which is arranged on the base frame, and the output shaft of the fourth servo motor is connected to the fourth drive shaft; a fourth swing rod, one end of which is fixedly connected to the fourth drive shaft; and a fourth connecting rod, one end of which is rotatably connected to the other end of the fourth swing rod, and the other end of the fourth connecting rod is rotatably connected to the second rotating shaft.

[0013] In some embodiments of the present invention, a fourth through hole is formed at one end of the fourth connecting rod connected to the second rotating shaft, and the second rotating shaft is movably installed in the fourth through hole.

[0014] In certain embodiments of the present invention, the second rotation drive mechanism includes: a third servo motor, which is arranged on the base frame, and the output shaft of the third servo motor is connected to the third drive shaft; a third rocker arm, one end of which is fixedly connected to the third drive shaft; a third connecting rod, one end of which is rotatably connected to the other end of the third rocker arm, and a third drive rod, one end of which is rotatably connected to the other end of the third connecting rod, and the other end of the third drive rod is connected to the second folding knife or the second rotation shaft.

[0015] In some embodiments of the present invention, the heating device includes an upper heating plate and a lower heating plate which are arranged above and below the workbench in a one-to-one correspondence, and an accommodating space is arranged between the upper heating plate and the lower heating plate.

[0016] The beneficial effects of the paper folding machine of certain embodiments of the present invention are as follows: by providing a heating device and a paper folding mechanism on the base frame, the paper folding mechanism can fold the filter paper placed on the workbench and push the folded filter paper into the heating device, and the heating device heats and shapes the filter paper, so that the filter paper maintains the folded shape, abandoning the traditional production method that relies on workers to manually fold paper, reducing the labor intensity of workers, improving the folding efficiency of the filter paper, and the folding quality of the filter paper is stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] Figure 1 A schematic diagram of the structure of a paper folding machine according to some embodiments of the present invention;

[0019] Figure 2 for Figure 1 A schematic diagram of the structure of the paper folding machine when part of the frame is removed;

[0020] Figure 3 for Figure 1 A schematic diagram of the structure of a paper folding machine in which a paper folding mechanism is installed on a side plate of a base frame;

[0021] Figure 4 for Figure 1 A schematic structural diagram of another angle when the paper folding mechanism of the paper folding machine is installed on the side plate of the base frame;

[0022] Figure 5 for Figure 1 Parts diagram of the paper folding mechanism in the paper folding machine shown in FIG. DETAILED DESCRIPTION

[0023] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0024] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] In the description of the present invention, "several" means one or more, "more" means more than three, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first", "second", etc., it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0026] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0027] Reference Figures 1 to 5 According to some embodiments of the present invention, a paper folding machine for folding filter paper includes a base frame 100, on which a workbench 110 is provided. The workbench 110 can be used to carry and place a workpiece (not shown in the figure). Specifically, the workpiece can be filter paper. A heating device is provided on the base frame 100, and the filter paper can be heated when the heating device is working; the base frame 100 is provided with a paper folding mechanism located on one side of the heating device, and the paper folding mechanism can fold the filter paper and drive the filter paper to move into the heating device.

[0028] In this embodiment, the paper folding mechanism includes a first rotating shaft 200 and a second rotating shaft 300 which are movably mounted on the base frame 100 and can be lifted up and down. The first rotating shaft 200 and the second rotating shaft 300 are arranged one by one above and below the workbench 110; that is, the first rotating shaft 200 is located above the workbench 110, and the second rotating shaft 300 is located below the workbench 110. A first folding knife 210 is arranged on the first rotating shaft 200, a first rotating driving mechanism 220 for driving the first folding knife 210 to rotate around the first rotating shaft 200 is arranged on the base frame 100, and a first lifting driving mechanism 230 for driving the first rotating shaft 200 to move up and down is arranged on the base frame 100; a second folding knife 310 is arranged on the second rotating shaft 300, a second rotating driving mechanism 320 for driving the second folding knife 310 to rotate around the second rotating shaft 300 is arranged on the base frame 100, and a second lifting driving mechanism 330 for driving the second rotating shaft 300 to move up and down is arranged on the base frame 100.

[0029] By providing a heating device and a paper folding mechanism on the base frame 100, the paper folding mechanism can fold the filter paper placed on the workbench 110 and push the folded filter paper into the heating device. The heating device heats and shapes the filter paper, so that the filter paper maintains the folded shape. The traditional production method that relies on workers to manually fold paper is abandoned, the labor intensity of workers is reduced, the folding efficiency of the filter paper is improved, and the folding quality of the filter paper is stable and reliable.

[0030] The working principle of the paper folding machine of this embodiment is as follows: first, place the filter paper to be folded on the workbench and make the filter paper partly located between the first folding knife 210 and the second folding knife 310. At this time, the first lifting drive mechanism 230 drives the first folding knife 210 to move vertically downward to squeeze the filter paper, and the second lifting drive mechanism 330 drives the second folding knife 310 to move upward to squeeze the filter paper. After that, the first lifting drive mechanism 230 drives the first folding knife 210 to move upward to rise, and the second lifting drive mechanism 330 drives the second folding knife 310 to move downward to fall. In this process, the first lifting drive mechanism 230 drives the first folding knife 210 to move upward to rise, and the second lifting drive mechanism 330 drives the second folding knife 310 to move downward to fall. A rotating drive mechanism 220 drives the first folding knife 210 to rotate toward the heating device, and the second rotating drive mechanism 320 drives the second folding knife 310 to rotate toward the heating device, so that the first folding knife 210 and the second folding knife 310 can cooperate to push the filter paper toward the heating device, thereby moving the filter paper closer to the heating device; then the first lifting drive mechanism 230 drives the first folding knife 210 to move vertically downward to squeeze the filter paper, and the second lifting drive mechanism 330 drives the second folding knife 310 to move upward to squeeze the filter paper, so as to fold the filter paper next time, and the filter paper is folded continuously in this cycle.

[0031] It should be noted that, in the process where the first lifting drive mechanism 230 drives the first folding knife 210 to move vertically downward to squeeze the filter paper, and the second lifting drive mechanism 330 drives the second folding knife 310 to move upward to squeeze the filter paper, the first rotating drive mechanism 220 and the second rotating drive mechanism 320 can synchronously drive the first folding knife 210 and the second folding knife 310 to rotate toward the heating device, so that the folding mechanism synchronously drives the filter paper to move toward the heating device when folding the filter paper, and then the heating device can heat and shape the filter paper after folding.

[0032] Reference Figure 1 and Figure 3In order to enable the first rotating shaft 200 to better drive the first folding knife 210 to move up and down, in this embodiment, a first guide rail 120 arranged in a vertical direction is provided on the upper part of the side wall of the base frame 100, and the first guide rail 120 is movably provided with a first sliding seat 121, and the first rotating shaft 200 is arranged on the first sliding seat 121. Specifically, a first mounting hole is opened on the first sliding seat 121, and the first rotating shaft 200 is rotatably installed in the first mounting hole, so the first sliding seat 121 can drive the first rotating shaft 200 and the first folding knife 210 to move up and down along the first guide rail 120, which is simple and convenient.

[0033] In order to make the second rotating shaft 300 and the second folding knife 310 move up and down better, in some embodiments of the present invention, a second guide rail (not shown) arranged in a vertical direction is provided on the upper part of the side wall of the base frame 100, and the second guide rail is movably provided with a second sliding seat 130, and the second rotating shaft 300 is arranged on the second sliding seat 130. Specifically, a second mounting hole is provided on the second sliding seat 130, and the second rotating shaft 300 is rotatably mounted in the second mounting hole, so the second sliding seat 130 can drive the second rotating shaft 300 and the second folding knife 310 to move up and down along the second guide rail. The structure is simple, and the lifting and lowering of the second rotating shaft 300 and the second folding knife 310 is smoother.

[0034] Reference Figures 3 to 5 In order to make the first lifting drive mechanism 230 better drive the first rotating shaft 200 and the first folding knife 210 to move up and down, in some embodiments of the present invention, the first lifting drive mechanism 230 includes a second servo motor 231 disposed on the base frame 100, the output shaft of the second servo motor 231 is connected to the second driving shaft 2310, the second driving shaft 2310 is pivoted to the base frame 100, the second driving shaft 2310 is fixedly connected to the second swing rod 232 that can rotate synchronously with it, the other end of the second swing rod 232 is rotatably connected to the second connecting rod 233, and the other end of the second connecting rod 233 is rotatably connected to the first rotating shaft 200. A second through hole 2330 is opened at one end of the second connecting rod 233 connected to the first rotating shaft 200, and the first rotating shaft 200 is movably installed in the second through hole 2330. By adopting the above structure, when the second servo motor 231 drives the second drive shaft 2310 to rotate forward or reverse, the second drive shaft 2310 can drive the first rotating shaft 200 and the first folding knife 210 to move up and down through the second swing rod 232 and the second connecting rod 233, and the structure is simple and convenient.

[0035] It should be noted that, in addition to the above-mentioned structure, the first lifting drive mechanism 230 may also adopt other structures. For example, the first lifting drive mechanism 230 is a cylinder (not shown in the figure) or a hydraulic cylinder (not shown in the figure), and the cylinder or hydraulic cylinder is fixedly arranged on the base frame 100. The piston rod of the cylinder or hydraulic cylinder is connected to the first sliding seat 121. When in use, the cylinder or hydraulic cylinder can drive the first sliding seat 121 to drive the first rotating shaft 200 and the first folding knife 210 to move up and down.

[0036] In order to enable the first rotation drive mechanism 220 to better drive the first folding knife 210 to rotate, in certain embodiments of the present invention, the first rotation drive mechanism 220 includes a first servo motor 221 arranged on the base frame 100, and the output shaft of the first servo motor 221 is connected to the first drive shaft 2210, and the first drive shaft 2210 is pivotally connected to the base frame 100; the first drive shaft 2210 is fixedly connected to the first rocker arm 222 that can rotate synchronously with it, and the other end of the first rocker arm 222 is rotatably connected to the first connecting rod 223, and the other end of the first connecting rod 223 is rotatably connected to the first driving rod 224, and the other end of the first driving rod 224 is connected to the first folding knife 210 or the first rotation shaft 200. By adopting the above-mentioned structure, when the first servo motor 221 drives the first drive shaft 2210 to rotate forward or reversely, the first drive shaft 2210 can drive the first folding knife 210 to rotate forward or reversely through the cooperation of the first rocker arm 222, the first connecting rod 223 and the first driving rod 224, or the first drive shaft 2210 can drive the first rotating shaft 200 to drive the first folding knife 210 to rotate forward or reversely through the cooperation of the first rocker arm 222, the first connecting rod 223 and the first driving rod 224. The structure is simple and compact.

[0037] It can be understood that, in addition to the above-mentioned structure, the first rotating drive mechanism 220 may also adopt other structures. For example, the first rotating drive mechanism 220 includes a first servo motor 221, and the first servo motor 221 is fixedly mounted on the first sliding seat 121, and the output shaft of the first servo motor 221 is fixedly connected to the first rotating shaft 200. At this time, the first servo motor 221 can directly drive the first rotating shaft 200 to drive the first folding knife 210 to rotate forward or reverse, and the structure is simple and compact.

[0038] Reference Figure 4 and Figure 5In order to enable the second lifting drive mechanism 330 to better drive the second rotating shaft 300 and the second folding knife 310 to move up and down, in some embodiments of the present invention, the second lifting drive mechanism 330 includes a fourth servo motor 331 disposed on the base frame 100, and the output shaft of the fourth servo motor 331 is connected to the fourth driving shaft 3310; the fourth driving shaft 3310 is fixedly connected to the fourth swing rod 332 that can rotate synchronously with it, and the other end of the fourth swing rod 332 is rotatably connected to the fourth connecting rod 333, and the other end of the fourth connecting rod 333 is rotatably connected to the second rotating shaft 300. A fourth through hole 3330 is opened at one end of the fourth connecting rod 333 connected to the second rotating shaft 300, and the second rotating shaft 300 is movably installed in the fourth through hole 3330.

[0039] By adopting the above structure, when the fourth servo motor 331 drives the fourth drive shaft 3310 to rotate forward or reverse, the fourth drive shaft 3310 can drive the second rotating shaft 300 and the second folding knife 310 to move up and down through the fourth swing rod 332 and the fourth connecting rod 333, and the structure is simple and convenient.

[0040] It should be noted that, in addition to the above-mentioned structure, the second lifting drive mechanism 330 may also adopt other structures. For example, the second lifting drive mechanism 330 is a cylinder (not shown in the figure) or a hydraulic cylinder (not shown in the figure), the cylinder or the hydraulic cylinder is fixedly arranged on the base frame 100, and the piston rod of the cylinder or the hydraulic cylinder is connected to the second sliding seat 130. When in use, the cylinder or the hydraulic cylinder can drive the second sliding seat 130 to drive the second rotating shaft 300 and the second folding knife 310 to move up and down.

[0041] In order to enable the second rotation drive mechanism 320 to better drive the second folding knife 310 to rotate forward or reverse, in certain embodiments of the present invention, the second rotation drive mechanism 320 includes a third servo motor 321 arranged on the base frame 100, and the output shaft of the third servo motor 321 is connected to the third drive shaft 3210; the third drive shaft 3210 is fixedly provided with a third rocker arm 322 which can rotate synchronously with it, and the other end of the third rocker arm 322 is rotatably connected to the third connecting rod 323, and the other end of the third connecting rod 323 is rotatably connected to the third driving rod 324, and the other end of the third driving rod 324 is connected to the second folding knife 310 or the second rotation shaft 300.

[0042] By adopting the above-mentioned structure, when the third servo motor 321 drives the third drive shaft 3210 to rotate forward or reverse, the third drive shaft 3210 can drive the second folding knife 310 to rotate forward or reverse through the cooperation of the third rocker arm 322, the third connecting rod 323 and the third driving rod 324, or the third drive shaft 3210 can drive the second rotating shaft 300 to drive the second folding knife 310 to rotate forward or reverse through the cooperation of the third rocker arm 322, the third connecting rod 323 and the third driving rod 324. The structure is simple and compact.

[0043] It can be understood that in addition to the above-mentioned structure, the second rotation drive mechanism 320 can also adopt other structures. For example, the second rotation drive mechanism 320 includes a third servo motor 321, and the third servo motor 321 is fixedly mounted on the second sliding seat 130, and the output shaft of the third servo motor 321 is fixedly connected to the second rotating shaft 300. At this time, the third servo motor 321 can directly drive the second rotating shaft 300 to drive the second folding knife 310 to rotate forward or reverse, and the structure is simple and compact.

[0044] Reference Figure 2 In order to make the heating device heat the filter paper better, in some embodiments of the present invention, the heating device includes an upper heating plate 410 and a lower heating plate 420 which are arranged one by one above and below the workbench 110, and a receiving space 430 is arranged between the upper heating plate 410 and the lower heating plate 420. Specifically, the upper heating plate 410 and the lower heating plate 420 each include a plate body and a resistance heating sheet that can generate heat when powered on. When working, the upper heating plate 410 and the lower heating plate 420 are powered on to generate heat, so that the temperature inside the receiving space 430 between the upper heating plate 410 and the lower heating plate 420 rises to a set temperature. At this time, the filter paper folded by the paper folding mechanism is transported into the receiving space 430 and heated. At this time, the folded filter element can be heated and shaped to meet the needs of users.

[0045] It should be noted that, in addition to the above-mentioned structure, the heating device may also adopt other structures, such as a heating device including a box body (not shown in the figure), a cavity with two open ends (not shown in the figure) is provided in the box body, and a resistance heating wire (not shown in the figure) is provided in the cavity. When in use, the resistance heating wire can heat the cavity to a set temperature, and then the filter paper folded by the paper folding mechanism is transported into the cavity and heated, and the folded filter element can be heated and shaped to meet the needs of the user.

[0046] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A paper folding machine for folding filter paper, characterized in that: include: A base frame (100), wherein a workbench (110) is arranged on the base frame (100); A heating device, arranged on the base frame (100), wherein the heating device can heat the filter paper; A paper folding mechanism, arranged on the base frame (100) and located on one side of the heating device, the paper folding mechanism being capable of folding filter paper and driving the filter paper to move into the heating device; The paper folding mechanism comprises a first rotating shaft (200) and a second rotating shaft (300) which are movably mounted on the base frame (100) and can be lifted up and down, and the first rotating shaft (200) and the second rotating shaft (300) are arranged above and below the workbench (110) in a one-to-one correspondence; A first folding knife (210) is arranged on the first rotating shaft (200), a first rotating drive mechanism (220) for driving the first folding knife (210) to rotate around the first rotating shaft (200) is arranged on the base frame (100), and a first lifting drive mechanism (230) for driving the first rotating shaft (200) to move up and down is arranged on the base frame (100); A second folding knife (310) is arranged on the second rotating shaft (300), a second rotating drive mechanism (320) for driving the second folding knife (310) to rotate around the second rotating shaft (300) is arranged on the base frame (100), and a second lifting drive mechanism (330) for driving the second rotating shaft (300) to move up and down is arranged on the base frame (100); The first rotation drive mechanism (220) comprises a first servo motor (221), a first swing rod (222), a first connecting rod (223) and a first driving rod (224); the first servo motor (221) is arranged on the base frame (100); the output shaft of the first servo motor (221) is connected to the first driving shaft (2210); one end of the first swing rod (222) is fixedly connected to the first driving shaft (2210); one end of the first connecting rod (223) is rotationally connected to the other end of the first swing rod (222); one end of the first driving rod (224) is rotationally connected to the other end of the first connecting rod (223); and the other end of the first driving rod (224) is connected to the first folding knife (210) or the first rotating shaft (200); The second rotation drive mechanism (320) comprises a third servo motor (321), a third swing rod (322), a third connecting rod (323) and a third driving rod (324); the third servo motor (321) is arranged on the base frame (100); the output shaft of the third servo motor (321) is connected to the third driving shaft (3210); one end of the third swing rod (322) is fixedly connected to the third driving shaft (3210); one end of the third connecting rod (323) is rotationally connected to the other end of the third swing rod (322); one end of the third driving rod (324) is rotationally connected to the other end of the third connecting rod (323); and the other end of the third driving rod (324) is connected to the second folding knife (310) or the second rotation shaft (300).

2. A paper folding machine for folding filter paper according to claim 1, characterized in that : A first guide rail (120) arranged in a vertical direction is provided on the upper part of the side wall of the base frame (100); a first sliding seat (121) is movably provided on the first guide rail (120); and the first rotating shaft (200) is provided on the first sliding seat (121).

3. A paper folding machine for folding filter paper according to claim 2, characterized in that : The first lifting drive mechanism (230) comprises: A second servo motor (231) is arranged on the base frame (100), wherein an output shaft of the second servo motor (231) is connected to a second drive shaft (2310); a second swing rod (232), one end of the second swing rod (232) being fixedly connected to the second drive shaft (2310); A second connecting rod (233), one end of the second connecting rod (233) being rotatably connected to the other end of the second swing rod (232), and the other end of the second connecting rod (233) being rotatably connected to the first rotating shaft (200).

4. A paper folding machine for folding filter paper according to claim 3, characterized in that : A second through hole (2330) is provided at one end of the second connecting rod (233) connected to the first rotating shaft (200), and the first rotating shaft (200) is movably mounted in the second through hole (2330).

5. A paper folding machine for folding filter paper according to claim 1, characterized in that: A second guide rail arranged in a vertical direction is provided on the upper part of the side wall of the base frame (100); a second sliding seat (130) is movably provided on the second guide rail; and the second rotating shaft (300) is provided on the second sliding seat (130).

6. A paper folding machine for folding filter paper according to claim 5, characterized in that: The second lifting drive mechanism (330) comprises: A fourth servo motor (331) is arranged on the base frame (100), and an output shaft of the fourth servo motor (331) is connected to a fourth drive shaft (3310); a fourth swing rod (332), one end of the fourth swing rod (332) being fixedly connected to the fourth driving shaft (3310); A fourth connecting rod (333), one end of the fourth connecting rod (333) being rotationally connected to the other end of the fourth swing rod (332), and the other end of the fourth connecting rod (333) being rotationally connected to the second rotating shaft (300).

7. A paper folding machine for folding filter paper according to claim 6, characterized in that : A fourth through hole (3330) is provided at one end of the fourth connecting rod (333) connected to the second rotating shaft (300), and the second rotating shaft (300) is movably mounted in the fourth through hole (3330).

8. A paper folding machine for folding filter paper according to claim 1, characterized in that: The heating device comprises an upper heating plate (410) and a lower heating plate (420) which are arranged one-to-one above and below the workbench (110), and an accommodation space (430) is arranged between the upper heating plate (410) and the lower heating plate (420).

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