Traction pressure wheel pressure regulating mechanism

Abstract

The present invention relates to a traction pressure wheel pressure regulating mechanism, comprising a wall panel, an active regulating mechanism and a driven regulating mechanism connected to the wall panel, and a connecting rod, wherein the active regulating mechanism comprises a clamping handle, an active shaft, an active swing arm shaft, an active swing arm assembly, an active material pulling traction roller shaft, an active material pulling traction wheel, an active material pulling traction guide wheel, and an active material pulling traction lower shaft, and the driven regulating mechanism comprises a driven shaft, a driven swing arm shaft, a driven swing arm assembly, a driven material pulling traction roller shaft, a driven material pulling traction wheel, a driven material pulling guide wheel, and a driven material pulling lower shaft, one end of the active swing arm shaft is connected to the active shaft, one end of the driven swing arm shaft is connected to the driven shaft, and two ends of the connecting rod are respectively hinged to the other end of the active swing arm shaft and the other end of the driven swing arm shaft, and the traction pressure regulating mechanism of the traction pressure wheel can be adjusted in linkage, has stable pressure, high adjustment accuracy, is easy to operate, and has strong versatility.

Description

Technical field:

[0001] The invention relates to the technical field of packaging bag processing equipment, and in particular to a traction pressure wheel pressure regulating mechanism. Background technology:

[0002] The traction pressure wheel pressure adjustment mechanism is a common mechanism in the packaging paper bag production line, which is mainly used to adjust the pressure of each pressure wheel assembly used to pull the paper bag.

[0003] In the prior art, each group of pressure wheel adjustment devices in the traction pressure wheel pressure adjustment mechanism is independent and controlled by two clamping handles respectively. When adjusting the pressure of each group of pressure wheels, this mechanism needs to separately adjust the adjustment devices corresponding to each group of pressure wheel assemblies, which is not only inconvenient to operate, but also easily causes inconsistent pressure of each group, resulting in inconsistent clamping force during traction, which directly affects the traction efficiency and conveying effect, has poor adjustment accuracy, and is cumbersome to operate. Summary of the invention:

[0004] In view of the above problems, the present invention proposes a traction pressure wheel pressure adjustment mechanism which can be adjusted in linkage, has stable pressure, high adjustment accuracy, is easy to operate, and has strong versatility.

[0005] The present invention is realized through the following technical scheme: a traction pressure wheel pressure regulating mechanism comprises a wall plate, an active regulating mechanism and a driven regulating mechanism connected to the wall plate, and a connecting rod.

[0006] The active adjustment mechanism comprises a clamping handle, an active shaft, an active swing arm shaft, an active swing arm assembly, an active material pulling traction roller shaft, an active material pulling traction pressure wheel, an active material pulling traction guide wheel, and an active material pulling traction lower shaft.

[0007] The two ends of the active shaft are arranged in the wall panels on both sides, the clamping handle is connected to one end of the active shaft and can drive the active shaft to rotate, the active material pulling traction pressure wheel is sleeved on the active material pulling traction pressure roller shaft, the two ends of the active material pulling traction lower shaft are arranged in the wall panels on both sides through bearings and are correspondingly arranged under the active material pulling traction pressure roller shaft, the active material pulling traction guide wheel is sleeved on the active material pulling traction lower shaft and corresponds to the active material pulling traction pressure wheel.

[0008] The active swing arm assembly is used to adjust the pressure between the active pulling and guiding pressure roller and the active pulling and guiding idler pulley in the active adjusting mechanism, and includes an active swing arm and an active adjusting screw. The active swing arm is connected to the wallboard through an active swing arm pin shaft. The active swing arm is L-shaped and has an active screw connection part and an active roller shaft connection part. The active pulling and guiding pressure roller shaft is sleeved in the active roller shaft connection part through a bearing. The active adjusting screw is connected to the active screw connection part. An active cam groove is formed in the active shaft corresponding to the position of the active adjusting screw. The active cam groove has a cam structure, and one end of the active adjusting screw abuts against the active cam groove. By rotating the active shaft, the active adjusting screw can move along the cam working surface of the active cam groove, thereby driving the active swing arm to drive the active pulling and guiding pressure roller shaft to move, and further adjusting the pressure between the driven pulling and guiding pressure roller and the driven pulling and guiding idler pulley connected to the active pulling and guiding pressure roller shaft.

[0009] The driven adjusting mechanism includes a driven shaft, a driven swing arm shaft, a driven swing arm assembly, a driven pulling and guiding pressure roller shaft, a driven pulling and guiding pressure roller, a driven pulling and guiding idler pulley, and a driven pulling and guiding lower shaft.

[0010] Both ends of the driven shaft are arranged in the wallboards on both sides. The driven pulling and guiding pressure roller is sleeved on the driven pulling and guiding pressure roller shaft. Both ends of the driven pulling and guiding lower shaft are arranged in the wallboards on both sides through bearings and are correspondingly arranged below the driven pulling and guiding pressure roller shaft. The driven pulling and guiding idler pulley is sleeved on the driven pulling and guiding lower shaft and corresponds to the driven pulling and guiding pressure roller.

[0011] The driven swing arm assembly is used to adjust the pressure between the driven pulling and guiding pressure roller and the driven pulling and guiding idler pulley in the driven adjusting mechanism. The driven swing arm assembly includes a driven swing arm and a driven adjusting screw. The driven swing arm is connected to the wallboard through a driven swing arm pin shaft. The driven swing arm is L-shaped and has a driven screw connection part and a driven roller shaft connection part. The driven pulling and guiding pressure roller shaft is sleeved in the driven roller shaft connection part through a bearing. The driven adjusting screw is connected to the driven screw connection part. A driven cam groove is formed in the driven shaft corresponding to the position of the driven adjusting screw. The driven cam groove has a cam structure, and one end of the driven adjusting screw abuts against the driven cam groove. By rotating the driven shaft, the driven adjusting screw can move along the cam working surface of the driven cam groove, thereby driving the driven swing arm to drive the driven pulling and guiding pressure roller shaft to move, and further adjusting the pressure between the driven pulling and guiding pressure roller and the driven pulling and guiding idler pulley connected to the driven pulling and guiding pressure roller shaft.

[0012] In order to achieve the linkage adjustment of the pressure between the active pulling traction pressure wheel and the active pulling guiding wheel, as well as the pressure between the driven pulling traction pressure wheel and the driven pulling guiding wheel, and improve the consistency and convenience of the pressure adjustment between the traction pressure wheel and the guiding wheel in the active adjustment mechanism and the driven adjustment mechanism, one end of the active swing arm shaft is connected to the active shaft and can rotate with the active shaft. One end of the driven swing arm shaft is connected to the driven shaft and can drive the driven shaft to rotate. The two ends of the connecting rod are respectively hinged to the other ends of the active swing arm shaft and the driven swing arm shaft.

[0013] Furthermore, in order to ensure that the active pulling traction pressure wheel presses against the active pulling guiding wheel and the driven pulling traction pressure wheel presses against the driven pulling guiding wheel, the traction pressure wheel pressure adjustment mechanism further includes an active spring assembly and a driven spring assembly. The active spring assembly includes an active long spring rod, an active spring, and an active short spring rod. The active long spring rod is fixedly connected to the wall panel. The active short spring rod is connected to the end of the active screw connection part of the active swing arm. The two ends of the active spring are respectively connected to the active long spring rod and the active short spring rod. Under the action of the active spring, the active swing arm drives the active pulling traction roller shaft to have a tendency to rotate around the active swing arm pin shaft, thereby driving the active pulling traction pressure wheel arranged on the active pulling traction roller shaft to have a tendency to press down on the active pulling guiding wheel. The driven spring assembly includes a driven long spring rod, a driven spring, and a driven short spring rod. The driven long spring rod is fixedly connected to the wall panel. The driven short spring rod is connected to the end of the driven screw connection part of the driven swing arm. The two ends of the driven spring are respectively connected to the driven long spring rod and the driven short spring rod. Under the action of the driven spring, the driven swing arm drives the driven pulling traction roller shaft to have a tendency to rotate around the driven swing arm pin shaft, thereby driving the driven pulling traction pressure wheel arranged on the driven pulling traction roller shaft to have a tendency to press down on the driven pulling guiding wheel.

[0014] In order to improve the smoothness of the pressure adjustment, there are two groups of active swing arm assemblies which are respectively arranged at both ends of the active shaft, and two groups of driven swing arm assemblies which are respectively arranged at both ends of the driven shaft. According to the actual situation, more or fewer active swing arm assemblies and driven swing arm assemblies can be designed.

[0015] Correspondingly, there are two active cam grooves on the active shaft, and two driven cam grooves on the driven shaft. There are two groups of active spring assemblies which are respectively arranged corresponding to the active swing arm assemblies, and two groups of driven spring assemblies which are respectively arranged corresponding to the driven swing arm assemblies.

[0016] To improve the reliability of the connection and the stability during pressure regulation, preferably, one end of the active swing arm shaft is in a hoop shape and is tightly connected to the outer circle of the active shaft, and one end of the driven swing arm shaft is in a hoop shape and is tightly connected to the outer circle of the driven shaft. According to the actual situation, the active swing arm shaft and the driven swing arm shaft with other shapes can also be designed.

[0017] To improve the versatility of the entire mechanism, the active pulling and traction pressure wheel is axially adjustably sleeved on the active pulling and traction roller shaft, the active pulling and traction guide wheel is axially adjustably sleeved on the lower active pulling and traction shaft, the driven pulling and traction pressure wheel is axially adjustably sleeved on the driven pulling and traction roller shaft, and the driven pulling and traction guide wheel is axially adjustably sleeved on the lower driven pulling and traction shaft.

[0018] To avoid the handle rope fixed on the handle paper, a first handle rope avoidance groove is formed on the active pulling and traction pressure wheel, and a second handle rope avoidance groove is formed on the driven pulling and traction pressure wheel.

[0019] The beneficial effects of the present invention are as follows: The traction pressure wheel pressure regulating mechanism realizes the linkage regulation of the active regulating mechanism and the driven regulating mechanism by designing a connecting rod structure, greatly improving the convenience and consistency of regulating the pressure between the active pulling and traction pressure wheel and the active pulling and traction guide wheel, and the pressure between the driven pulling and traction pressure wheel and the driven pulling and traction guide wheel; by respectively forming cam-shaped grooves on the active shaft and the driven shaft and cooperating with the adjusting screw, the regulation of the pressure between the active pulling and traction pressure wheel and the active pulling and traction guide wheel, and the pressure between the driven pulling and traction pressure wheel and the driven pulling and traction guide wheel is realized, and the regulation method is designed simply and ingeniously; by designing the axially adjustable active pulling and traction pressure wheel, active pulling and traction guide wheel, driven pulling and traction pressure wheel and driven pulling and traction guide wheel, the versatility of the regulating mechanism is improved; in addition, the traction pressure wheel pressure regulating mechanism has a compact structure, convenient operation and high automation degree. Description of the drawings:

[0020] Figure 1 It is a schematic structural diagram of the traction pressure wheel pressure regulating mechanism of the present invention with one side wall panel hidden.

[0021] Figure 2 is Figure 1 Left view with the driven regulating mechanism hidden.

[0022] Figure 3 is Figure 2 A-A view with the driven regulating mechanism retained.

[0023] Figure 4 It is a partial enlarged view of the active regulating mechanism of the traction pressure wheel pressure regulating mechanism of the present invention.

[0024] Figure 5 It is a partial enlarged view of the driven adjustment mechanism of the traction pressure wheel pressure adjustment mechanism of the present invention;

[0025] Figure 6 It is a schematic structural diagram of the driving shaft of the traction pressure wheel pressure adjustment mechanism of the present invention;

[0026] Figure 7 It is a schematic structural diagram of the driven shaft of the traction pressure wheel pressure adjustment mechanism of the present invention. Specific embodiments:

[0027] The following combines the drawings to elaborate on the preferred embodiments of the present invention, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0028] Such as Figures 1-3 A traction pressure wheel pressure adjustment mechanism shown, including a wall panel 1, a driving adjustment mechanism 2 and a driven adjustment mechanism 3 connected to the wall panel 1, and a connecting rod 4.

[0029] The driving adjustment mechanism includes a pressing handle 5, a driving shaft 21, a driving swing arm shaft 22, a driving swing arm assembly 23, a driving material pulling traction roller shaft 24, a driving material pulling traction wheel 25, a driving material pulling guide wheel 26, and a driving material pulling lower shaft 27. Both ends of the driving shaft 21 are arranged in the two side wall panels 1. The pressing handle 5 is connected to one end of the driving shaft 21 and can drive the driving shaft 21 to rotate. The driving material pulling traction wheel 25 is axially adjustably sleeved on the driving material pulling traction roller shaft 24. As Figure 4 shown, a first handle rope avoiding groove 251 is provided on the driving material pulling traction wheel 25. Both ends of the driving material pulling lower shaft 27 are arranged in the two side wall panels 1 through bearings and are correspondingly arranged below the driving material pulling traction roller shaft 24. The driving material pulling guide wheel 26 is axially adjustably sleeved on the driving material pulling lower shaft 27 and corresponds to the driving material pulling traction wheel 25.

[0030] There are two groups of the driving swing arm assemblies 23 and are respectively arranged at both ends of the driving shaft 21. As Figure 4As shown, the active swing arm assembly 23 includes an active swing arm 231 and an active adjustment screw 232. The active swing arm 231 is connected to the wall panel 1 through an active swing arm pin shaft 233. The active swing arm 231 is L-shaped and has an active screw connection portion 2311 and an active roller shaft connection portion 2312. The active material pulling and traction roller shaft 24 is sleeved in the active roller shaft connection portion 2312 through a bearing. The active adjustment screw 232 is connected to the active screw connection portion 2311. Two active cam grooves 211 are provided on the active shaft 21 corresponding to the positions of the two active adjustment screws 232. The active cam grooves 211 are in a cam structure, and one end of the active adjustment screw 232 abuts against the active cam groove 211.

[0031] The driven adjustment mechanism 3 includes a driven shaft 31, a driven swing arm shaft 32, a driven swing arm assembly 33, a driven material pulling and traction roller shaft 34, a driven material pulling and traction roller 35, a driven material pulling and guiding pulley 36, and a driven material pulling and traction lower shaft 37. Both ends of the driven shaft 31 are arranged in the two side wall panels 1. The driven material pulling and traction roller 35 is axially adjustably sleeved on the driven material pulling and traction roller shaft 34, as Figure 5 shown. A second handgrip rope avoidance groove 351 is provided on the driven material pulling and traction roller 35. Both ends of the driven material pulling and traction lower shaft 37 are arranged in the two side wall panels 1 through bearings and are correspondingly arranged below the driven material pulling and traction roller shaft 34. The driven material pulling and guiding pulley 36 is axially adjustably sleeved on the driven material pulling and traction lower shaft 37 and corresponds to the driven material pulling and traction roller 35.

[0032] There are two groups of the driven swing arm assemblies 33, which are respectively arranged at both ends of the driven shaft 31. As Figure 5 shown, the driven swing arm assembly 33 includes a driven swing arm 331 and a driven adjustment screw 332. The driven swing arm 331 is connected to the wall panel 1 through a driven swing arm pin shaft 333. The driven swing arm 331 is L-shaped and has a driven screw connection portion 3311 and a driven roller shaft connection portion 3312. The driven material pulling and traction roller shaft 34 is sleeved in the driven roller shaft connection portion 3312 through a bearing. The driven adjustment screw 332 is connected to the driven screw connection portion 3311. Two driven cam grooves 311 are provided on the driven shaft 31 corresponding to the positions of the two driven adjustment screws 332. The driven cam grooves 311 are in a cam structure, and one end of the driven adjustment screw 332 abuts against the driven cam groove 311.

[0033] One end of the active swing arm shaft 22 is in a hoop shape, tightly holding and connecting to the outer circle of the active shaft 21 and capable of rotating together with the active shaft 21. One end of the driven swing arm shaft 32 is in a hoop shape, tightly holding and connecting to the outer circle of the driven shaft 31 and capable of driving the driven shaft 31 to rotate. Two ends of the connecting rod 4 are respectively hinged to the other end of the active swing arm shaft 22 and the other end of the driven swing arm shaft 23.

[0034] As Figures 4-5 shown, the traction pressure regulating mechanism of the pressure roller further includes two groups of active tension spring assemblies 6 and two groups of driven tension spring assemblies 7. The active tension spring assembly 6 includes an active long tension spring rod 61, an active tension spring 62, and an active short tension spring rod 63. The active long tension spring rod 61 is fixedly connected to the wall panel 1. The active short tension spring rod 63 is connected to the end of the active screw connection part 2311 of the active swing arm 231. Two ends of the active tension spring 62 are respectively connected to the active long tension spring rod 61 and the active short tension spring rod 63. The driven tension spring assembly 7 includes a driven long tension spring rod 71, a driven tension spring 72, and a driven short tension spring rod 73. The driven long tension spring rod 71 is fixedly connected to the wall panel 1. The driven short tension spring rod 73 is connected to the end of the driven screw connection part 3311 of the driven swing arm 331. Two ends of the driven tension spring 72 are respectively connected to the driven long tension spring rod 61 and the driven short tension spring rod 63.

[0035] When using the traction pressure regulating mechanism of the pressure roller to adjust the pressure, if it is necessary to reduce the traction pressure, then press the pressing handle 5. The pressing handle 5 drives the active shaft 21 to rotate. The active shaft 21 drives the active swing arm shaft 22 to rotate. At this time, the cam structure of the active cam groove 211 on the active shaft 21 pushes the active adjusting screw 232 that is in close contact and cooperation with it. The active adjusting screw 232 drives the active swing arm 231 to rotate around the active swing arm pin shaft 233 fixed on the wall panel 1, thereby driving the active material pulling traction pressure roller shaft 24 to move with the active material pulling traction pressure wheel 25, so that the active material pulling traction pressure wheel 25 rotates clockwise away from the active material pulling guide wheel 26, thereby reducing the traction pressure between the active material pulling traction pressure wheel 25 and the active material pulling guide wheel 26.

[0036] At the same time, the driven swing arm shaft 32 connected to the active swing arm shaft 22 through the connecting rod 4 rotates synchronously, thereby driving the driven shaft 31 to rotate. The cam structure of the driven cam groove 311 on the driven shaft 31 pushes the driven adjusting screw 332 that is in close contact and cooperation with it. The driven adjusting screw 332 drives the driven swing arm 331 to rotate around the driven swing arm pin shaft 333 fixed on the wall panel 1, thereby driving the driven material pulling traction pressure roller shaft 34 to move with the driven material pulling traction pressure wheel 35, so that the driven material pulling traction pressure wheel 35 rotates clockwise away from the driven material pulling guide wheel 36, thereby reducing the traction pressure between the driven material pulling traction pressure wheel 35 and the driven material pulling guide wheel 36.

[0037] When the machine is working properly, the active long spring rod 61 fixed on the wall panel 1, the active short spring rod 63 fixed on the active swing arm 231, and the active spring 62 connecting the two can ensure that the active material pulling traction pressure wheel 25 and the active material pulling guide wheel 26 are in contact; the driven long spring rod 71 fixed on the wall panel 1, the driven short spring rod 73 fixed on the driven swing arm 331, and the driven spring 72 connecting the two can ensure that the driven material pulling traction pressure wheel 35 and the driven material pulling guide wheel 36 are in contact.

[0038] If it is necessary to increase the traction pressure, just rotate the pressing handle 5 in the reverse direction.

[0039] The above process realizes the synchronous adjustment of the pressure of the two groups of traction pressure wheels and guide wheels, which is convenient for operation when the machine is repaired and the paper is disassembled and assembled.

[0040] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "top", "bottom", "side", "end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0041] In addition, in the description of the embodiments of the present invention, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected", "set", "provided", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0042] Finally, it should be noted that the above embodiments are only specific embodiments of the present invention, used to illustrate the technical solutions of the present invention, rather than limiting it. The protection scope of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that any person skilled in the art within the technical scope disclosed by the present invention can still modify the technical solutions recorded in the foregoing embodiments or easily think of changes, or perform equivalent replacements for some of the technical features; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A traction pressure wheel pressure regulating mechanism, characterized in that: It includes wall panels, an active adjustment mechanism and a driven adjustment mechanism connected to the wall panels, and a connecting rod. The active adjustment mechanism includes a pressing handle, an active shaft, an active swing arm shaft, an active swing arm assembly, an active material pulling and traction pressure roller shaft, an active material pulling and traction pressure wheel, an active material pulling and traction guide wheel, and an active material pulling and traction lower shaft. Both ends of the active shaft are arranged in the wall panels on both sides. The pressing handle is connected to one end of the active shaft and can drive the active shaft to rotate. The active material pulling and traction pressure wheel is sleeved on the active material pulling and traction pressure roller shaft. Both ends of the active material pulling and traction lower shaft are arranged in the wall panels on both sides through bearings and are correspondingly arranged below the active material pulling and traction pressure roller shaft. The active material pulling and traction guide wheel is sleeved on the active material pulling and traction lower shaft and corresponds to the active material pulling and traction pressure wheel. The active swing arm assembly includes an active swing arm and an active adjustment screw. The active swing arm is connected to the wall panel through an active swing arm pin shaft. The active swing arm is L-shaped and has an active screw connection part and an active pressure roller shaft connection part. The active material pulling and traction pressure roller shaft is sleeved in the active pressure roller shaft connection part through a bearing. The active adjustment screw is connected to the active screw connection part. An active cam groove is provided on the active shaft corresponding to the position of the active adjustment screw. The active cam groove has a cam structure. One end of the active adjustment screw abuts against the active cam groove. The driven adjustment mechanism includes a driven shaft, a driven swing arm shaft, a driven swing arm assembly, a driven material pulling and traction pressure roller shaft, a driven material pulling and traction pressure wheel, a driven material pulling and traction guide wheel, and a driven material pulling and traction lower shaft. Both ends of the driven shaft are arranged in the wall panels on both sides. The driven material pulling and traction pressure wheel is sleeved on the driven material pulling and traction pressure roller shaft. Both ends of the driven material pulling and traction lower shaft are arranged in the wall panels on both sides through bearings and are correspondingly arranged below the driven material pulling and traction pressure roller shaft. The driven material pulling and traction guide wheel is sleeved on the driven material pulling and traction lower shaft and corresponds to the driven material pulling and traction pressure wheel. The driven swing arm assembly includes a driven swing arm and a driven adjustment screw. The driven swing arm is connected to the wall panel through a driven swing arm pin shaft. The driven swing arm is L-shaped and has a driven screw connection part and a driven pressure roller shaft connection part. The driven material pulling and traction pressure roller shaft is sleeved in the driven pressure roller shaft connection part through a bearing. The driven adjustment screw is connected to the driven screw connection part. A driven cam groove is provided on the driven shaft corresponding to the position of the driven adjustment screw. The driven cam groove has a cam structure. One end of the driven adjustment screw abuts against the driven cam groove. A first handle rope avoidance groove is provided on the active material pulling and traction pressure wheel, and a second handle rope avoidance groove is provided on the driven material pulling and traction pressure wheel. One end of the active swing arm shaft is connected to the active shaft and can rotate with the active shaft. One end of the active swing arm shaft is in a hoop shape and is tightly connected to the outer circle of the active shaft. One end of the driven swing arm shaft is connected to the driven shaft and can drive the driven shaft to rotate. One end of the driven swing arm shaft is in a hoop shape and is tightly connected to the outer circle of the driven shaft. Both ends of the connecting rod are respectively hinged to the other ends of the active swing arm shaft and the driven swing arm shaft. It further includes an active tension spring assembly and a driven tension spring assembly.

2. The traction pressure wheel pressure regulating mechanism according to claim 1, characterized in that: The active tension spring assembly includes an active long tension spring rod, an active tension spring, and an active short tension spring rod. The active long tension spring rod is fixedly connected to the wall panel. The active short tension spring rod is connected to the end of the active screw connection part of the active swing arm. Both ends of the active tension spring are respectively connected to the active long tension spring rod and the active short tension spring rod. The driven tension spring assembly includes a driven long tension spring rod, a driven tension spring, and a driven short tension spring rod. The driven long tension spring rod is fixedly connected to the wall panel. The driven short tension spring rod is connected to the end of the driven screw connection part of the driven swing arm. Both ends of the driven tension spring are respectively connected to the driven long tension spring rod and the driven short tension spring rod.

3. The traction pressure wheel pressure regulating mechanism according to claim 1, wherein: There are two groups of the active swing arm assemblies which are respectively arranged at both ends of the active shaft. There are two groups of the driven swing arm assemblies which are respectively arranged at both ends of the driven shaft.

4. The traction pressure regulating mechanism according to claim 3, characterized in that: There are two active cam grooves on the active shaft. There are two driven cam grooves on the driven shaft.

5. The traction pressure regulating mechanism according to claim 3, wherein: There are two groups of the active tension spring assemblies which are respectively arranged corresponding to the active swing arm assemblies. There are two groups of the driven tension spring assemblies which are respectively arranged corresponding to the driven swing arm assemblies.

6. The traction pressure wheel pressure regulating mechanism according to claim 1, wherein: The active material pulling traction pressure wheel is axially adjustably sleeved on the active material pulling traction roller shaft. The active material pulling guide wheel is axially adjustably sleeved on the active material pulling lower shaft. The driven material pulling traction pressure wheel is axially adjustably sleeved on the driven material pulling traction roller shaft. The driven material pulling guide wheel is axially adjustably sleeved on the driven material pulling lower shaft.

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