Torsion limiting device and film stripping and slag squeezing equipment

Abstract

The utility model discloses a torsion limiting device and film stripping and slag squeezing equipment, and relates to the technical field of torsion limiting devices.The torsion limiting device comprises a rack, a first transmission assembly and a second transmission assembly, and the first transmission assembly and the second transmission assembly are arranged on the rack; the first transmission assembly comprises a connecting seat, a limiting assembly and a friction piece, the limiting assembly is movably arranged on the connecting seat, and the second transmission assembly is in transmission connection with the connecting seat; the friction piece is movably arranged on the connecting base and located between the limiting assembly and the second transmission assembly, and the limiting assembly is used for providing pressure for the friction piece. The friction piece is provided with a first position abutting against the second transmission assembly and a second position separated from the second transmission assembly; the technical scheme provided by the utility model has the technical effects that a user can adjust the resistance moment according to the maximum bearing capacity of the driving piece, so that the application range of the utility model is widened.

Description

Technical Field

[0001] This utility model relates to the technical field of torque limiting devices, and in particular to a torque limiting device and a film removal and slag extrusion device. Background Technology

[0002] In circuit board production, delamination and sludge removal equipment is mainly used in waste liquid and residue treatment processes, especially those involving chemical solution recovery, delamination residue separation, or wastewater purification. After a period of operation, excessive foreign matter or film residue can cause excessive load on the screw shaft, damaging components such as the screw blades, gears, and motor. While torque limiting devices are used to protect the screw shaft and motor, existing torque limiting devices have limited applicability and cannot meet the needs of different motor models. Utility Model Content

[0003] The main purpose of this invention is to provide a torque limiting device and a film removal and slag extrusion device, aiming to improve the applicability of the torque limiting device.

[0004] To achieve the above objectives, the present invention proposes a torque limiting device, comprising a frame and a first transmission assembly and a second transmission assembly mounted on the frame. The first transmission assembly includes a connecting seat, a limiting assembly, and a friction element. The connecting seat is used to connect to the output end of a driving member, and the limiting assembly is movably mounted on the connecting seat. The second transmission assembly is used to connect to a driven member and is mounted on the connecting seat, and is drively connected to the connecting seat. The friction element is movably mounted on the connecting seat and is located between the limiting assembly and the second transmission assembly. The limiting assembly is used to move the friction element towards the connecting seat. Pressure is applied to give the friction member a first position abutting against the second transmission assembly and a second position separating it from the second transmission assembly. Under the action of the limiting assembly, an adjustable resistance torque is formed between the friction member and the second transmission assembly. In the first position, the force exerted by the driving member on the connecting seat is less than the resistance torque, and the first transmission assembly rotates under the drive of the driving member, thereby driving the second transmission assembly to rotate. In the second position, the force exerted by the driving member on the connecting seat is greater than the resistance torque, and the first transmission assembly rotates under the drive of the driving member, while the first transmission assembly stops driving the second transmission assembly to rotate.

[0005] In one embodiment, the limiting component includes an elastic element and a first fastener. The first fastener is disposed on the connecting seat, and the elastic element is movably disposed on the connecting seat. The two ends of the elastic element elastically abut against the first fastener and the friction element, respectively, so that the limiting component and the friction element form the resistance torque.

[0006] In one embodiment, the friction element includes a first friction element and a second friction element. The first friction element is disposed on the connecting seat, and the second friction element is movably disposed on the connecting seat. A portion of the second transmission assembly is located between the first friction element and the second friction element, and the second transmission assembly is transmissionally connected to the first friction element and the second friction element.

[0007] In one embodiment, the limiting component further includes a pressure plate, and the end of the connecting seat away from the first fastener is provided with a first mounting portion. The pressure plate is in limiting contact with the second friction member, and the two ends of the elastic member are in elastic contact with the first fastener and the pressure plate, respectively. The first friction member is disposed on the first mounting portion.

[0008] In one embodiment, the first friction member and the second friction member are spaced apart along the axial direction of the connecting seat, and an adjustable clamping space is formed between the first friction member and the second friction member. A portion of the second transmission assembly is disposed within the clamping space. The two ends of the elastic member elastically abut against the first fastener and the second friction member, respectively. The elastic member is used to drive the second friction member to reset from the second position to the first position.

[0009] In one embodiment, the second transmission assembly includes a first flange and a second flange. The first flange is provided with a second mounting portion. The first flange is inserted into the clamping space through the second mounting portion so that the first flange is driven to be connected to the connecting seat, and the second flange is driven to be connected to the first flange.

[0010] In one embodiment, the second transmission assembly further includes a rotating shaft and a gear, the rotating shaft being drivenly connected to the second flange, and the gear being drivenly connected to the rotating shaft, the gear being used for mounting a driven component.

[0011] In one embodiment, the torque limiting device further includes a drive shaft disposed within the connecting seat and drivenly connected to the connecting seat. The drive shaft is used to drively connect the output end of the driving component.

[0012] In one embodiment, the torque limiting device further includes a second fastener, and the end of the connecting seat away from the limiting component has a first mounting hole, through which the second fastener passes to abut against the drive shaft.

[0013] This utility model also proposes a film removal and slag extrusion device, including a driving member, a driven member, and a torque limiting device as described in any of the above embodiments. The output end of the driving member is drivenly connected to the connecting seat, and the output end of the driven member is drivenly connected to the second transmission assembly.

[0014] The technical solution of this utility model employs a method where, under the pressure exerted by the limiting component on the friction element to press against the second transmission component, an adjustable resistance torque is formed between the friction element and the second transmission component. During operation, the force exerted by the driving component on the connecting seat is less than the resistance torque, the friction element is in the first position and abuts against the second transmission component, and the driven component operates normally; or, during operation, the force exerted by the driving component on the connecting seat is greater than the resistance torque, the friction element is in the second position and separates from the second transmission component, thereby stopping the driven component from rotating. The user can adjust the resistance torque according to the maximum load capacity of the driving component, thereby avoiding overload of the driving component and damage to other components, thus meeting the maximum load capacity of different motor models and improving the applicability of this application. 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 the structures shown in these drawings without creative effort.

[0016] Figure 1 A schematic diagram of an embodiment of the torque limiting device provided by this utility model;

[0017] Figure 2 A cross-sectional view of an embodiment of the torque limiting device provided by this utility model.

[0018] Explanation of icon numbers:

[0019] 1. Frame; 2. First transmission assembly; 21. Connecting seat; 211. First mounting part; 212. First mounting hole; 22. Limiting assembly; 221. Elastic element; 222. First fastener; 223. Pressure plate; 23. Friction element; 231. First friction element; 232. Second friction element; 24. Clamping space; 3. Second transmission assembly; 31. First flange; 311. Second mounting part; 32. Second flange; 33. Rotating shaft; 34. Gear; 4. Transmission shaft; 5. Third fastener; 10. Driving element; 20. Driven element.

[0020] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0021] 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.

[0022] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0023] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0024] This utility model proposes a torque limiting device.

[0025] Please see Figure 1 and Figure 2In one embodiment of this utility model, the torque limiting device includes a frame 1 and a first transmission assembly 2 and a second transmission assembly 3 disposed on the frame 1. The first transmission assembly 2 includes a connecting seat 21, a limiting assembly 22, and a friction member 23. The connecting seat 21 is used to connect to the output end of the driving member 10, and the limiting assembly 22 is movably disposed on the connecting seat 21. The second transmission assembly 3 is used to connect to the driven member 20, and the second transmission assembly 3 is disposed on the connecting seat 21, and the second transmission assembly 3 is drively connected to the connecting seat 21. The friction member 23 is movably disposed on the connecting seat 21 along a first direction, and the friction member 23 is located between the limiting assembly 22 and the second transmission assembly 3. The limiting assembly 22 is used to... The friction element 23 provides pressure to give it a first position abutting against the second transmission assembly 3 and a second position separating it from the second transmission assembly 3. Under the action of the limiting assembly 22, an adjustable resistance torque is formed between the friction element 23 and the second transmission assembly 3. In the first position, the force exerted by the driving member 10 on the connecting seat 21 is less than the resistance torque, and the first transmission assembly 2 rotates under the drive of the driving member 10, thereby driving the second transmission assembly 3 to rotate. In the second position, the force exerted by the driving member 10 on the connecting seat 21 is greater than the resistance torque, and the first transmission assembly 2 rotates under the drive of the driving member 10, but stops driving the second transmission assembly 3 to rotate.

[0026] The technical solution of this utility model employs a pressure exerted by the limiting component 22 on the friction element 23 to press against the second transmission component 3, resulting in an adjustable resistance torque between the friction element 23 and the second transmission component 3. During operation, the force exerted by the driving component 10 on the connecting seat 21 is less than the resistance torque, and the friction element 23 is in the first position and abuts against the second transmission component 3, allowing the driven component 20 to operate normally. Alternatively, during operation, the force exerted by the driving component 10 on the connecting seat 21 is greater than the resistance torque, and the friction element 23 is in the second position and separates from the second transmission component 3, causing the driven component 20 to stop rotating. The user can adjust the resistance torque according to the maximum load capacity of the driving component 10, thereby avoiding overload of the driving component 10 and damage to other components, thus meeting the maximum load capacity requirements of different motor models and improving the applicability of this application.

[0027] In this embodiment, the frame 1 can be used to install components such as the driving component 10, the first transmission assembly 2, the second transmission assembly 3, and the driven component 20. The driving component 10 drives the first transmission assembly 2 and the second transmission assembly 3 to rotate, thereby driving the driven component 20 to rotate. The driving component 10 can be a driving device such as a motor or electric motor, and the driven component 20 can be other mechanical components that operate by rotation. The first transmission assembly 2 may include a connecting seat 21, a limiting assembly 22, and a friction member 23. The first transmission assembly 2 can transmit the power of the driving component 10 to the driven component 20 through the second transmission assembly 3, thereby making the driven component 20 rotate more stably. The connecting seat 21 may have a second mounting hole, and the output end of the driving component 10 is mounted in the second mounting hole by a key connection, which facilitates the driving component 10 to drive the connecting seat 21 to rotate and improves the stability of the transmission connection between the connecting seat 21 and the driving component 10. The first direction may be consistent with the axial direction of the connecting seat 21. The limiting assembly 22 is limited and abuts against one end of the friction member 23, and the other end of the friction member 23 is connected to the second transmission assembly 3. In one embodiment, the friction element 23 can be used to abut against the second transmission assembly 3, so that the first transmission assembly 2 can drive the second transmission assembly 3 to rotate. When the operating load of the driving element 10 is greater than the resistance torque, that is, when the force exerted by the driving element 10 on the connecting seat 21 and the friction element 23 is greater than the pressure provided by the limiting assembly 22 on the friction element 23, the friction element 23 moves to the second position under the drive of the connecting seat 21 to compress the limiting assembly 22, so that the friction element 23 separates from the second transmission assembly 3, thereby cutting off the path of the first transmission assembly 2 to transmit power to the second transmission assembly 3, thereby preventing the driving element 10 from being in an overloaded state for a long time and causing damage to other components, thus protecting the driving element 10 and the whole machine. When the operating load of the driving element 10 is less than the resistance torque, that is, when the force exerted by the driving element 10 on the connecting seat 21 and the friction element 23 is less than the pressure provided by the limiting assembly 22 on the friction element 23, the friction element 23 remains in contact with the second transmission assembly 3, so that the first transmission assembly 2 drives the second transmission assembly 3 to rotate, thereby driving the driven element 20 to rotate.

[0028] like Figure 2 As shown, in one embodiment, the limiting component 22 includes an elastic element 221 and a first fastener 222. The first fastener 222 is disposed on the connecting seat 21, and the elastic element 221 is movably disposed on the connecting seat 21. The two ends of the elastic element 221 elastically abut against the first fastener 222 and the friction element 23, respectively, so that the resistance torque is formed between the limiting component 22 and the friction element 23.

[0029] In this embodiment, the limiting component 22 may include an elastic element 221 and a first fastener 222. The first fastener 222 can be in limiting contact with the elastic element 221. The user can control the tightness of the first fastener 222 on the connecting seat 21, thereby adjusting the pressure of the first fastener 222 on the elastic element 221 and the friction plate, and thus adjusting the magnitude of the resistance torque exerted by the limiting component 22 on the friction element 23 and the second transmission component 3. The first fastener 222 may be a fastener such as an adjusting nut, and the elastic element 221 may be a spring such as a disc spring. When the friction element 23 is in the second position, since the driving component 10 drives the first transmission component 2 to rotate idling, the operating load of the driving component 10 will gradually decrease and recover to less than the resistance torque provided by the limiting component 22. The elastic element 221 is used to elastically recover and drive the friction element 23 to re-abut against the second transmission component 3, so that the driven component 20 rotates again, which facilitates the long-term operation of the equipment.

[0030] like Figure 2 As shown, in one embodiment, the friction member 23 includes a first friction member 231 and a second friction member 232. The first friction member 231 is disposed on the connecting seat 21, and the second friction member 232 is movably disposed on the connecting seat 21. A portion of the second transmission assembly 3 is located between the first friction member 231 and the second friction member 232, and the second transmission assembly 3 is transmissionally connected to the first friction member 231 and the second friction member 232.

[0031] In this embodiment, in order to improve the stability of the transmission connection between the friction element 23 and the second transmission assembly 3, the present application uses the first friction element 231 and the second friction element 232 respectively to clamp on both sides of the second transmission assembly 3 along the first direction, thereby increasing the contact area between the first friction element 231 and the second friction element 232 and the second transmission assembly 3, increasing the friction force between the first friction element 231 and the second friction element 232 and the second transmission assembly 3, and thus making the first transmission assembly 2 drive the second transmission assembly 3 to rotate more stably.

[0032] like Figure 2 As shown, in one embodiment, the limiting component 22 further includes a pressure plate 223, and the end of the connecting seat 21 away from the first fastener 222 is provided with a first mounting portion 211. The pressure plate 223 is limited and abuts against the second friction member 232, and the two ends of the elastic member 221 are elastically abutting against the first fastener 222 and the pressure plate 223 respectively. The first friction member 231 is disposed on the first mounting portion 211.

[0033] In this embodiment, the present application employs a first mounting portion 211 and a pressure plate 223 respectively disposed on both sides of the first friction member 231 and the second friction member 232. The outer shape of the first mounting portion 211 and the outer shape of the pressure plate 223 can be configured to match the outer shapes of the first friction member 231 and the second friction member 232. To further improve the stability of the transmission connection between the friction member 23 and the second transmission assembly 3, the present application employs the first friction member 231 mounted on the first mounting portion 211 of the connecting seat 21, thereby improving the stability of the connection between the first friction member 231 and the connecting seat 21. The first fastener 222, the elastic member 221, the pressure plate 223, and the second friction member 232 are connected in sequence, thereby improving the stability of the connection between the limiting assembly 22 and the second friction member 232. The first fastener 222 and the elastic element 221 press the second friction element 232 together through the pressure plate 223, thereby increasing the contact area between the first fastener 222 and the elastic element 221 and the second friction element 232, so that the first fastener 222 and the elastic element 221 can better apply a pressing force to the second friction element 232.

[0034] like Figure 2 As shown, in one embodiment, the first friction member 231 and the second friction member 232 are spaced apart along the axial direction of the connecting seat 21, and an adjustable clamping space 24 is formed between the first friction member 231 and the second friction member 232. A part of the second transmission assembly 3 is disposed in the clamping space 24. The two ends of the elastic member 221 elastically abut against the first fastener 222 and the second friction member 232 respectively. The elastic member 221 is used to drive the second friction member 232 to reset from the second position to the first position.

[0035] In this embodiment, to facilitate the clamping of the friction member 23 onto the second transmission assembly 3, an adjustable clamping space 24 is formed between the first friction member 231 and the second friction member 232, with a portion of the second transmission assembly 3 disposed within the clamping space 24. The application uses an elastic member 221 to drive the second friction member 232 back from the second position to the first position, so that the friction member 23 re-engages with the second transmission assembly 3, causing the driven member 20 to rotate again, facilitating long-term operation of the equipment. The implementation method of the elastic member 221 driving the second friction member 232 back from the second position to the first position can refer to the above embodiment and will not be repeated here.

[0036] like Figure 2 As shown, in one embodiment, the second transmission assembly 3 includes a first flange 31 and a second flange 32. The first flange 31 is provided with a second mounting portion 311. The first flange 31 is inserted into the clamping space 24 through the second mounting portion 311 so that the first flange 31 is connected to the connecting seat 21 in a transmission manner, and the second flange 32 is connected to the first flange 31 in a transmission manner.

[0037] In this embodiment, to facilitate the transmission of power from the driving member 10 to the driven member 20 by the second transmission assembly 3, the second transmission assembly 3 may include a first flange 31 and a second flange 32. The first flange 31 may be disposed on the side of the second flange 32 near the connecting seat 21. The first flange 31 is inserted into the clamping space 24 through the second mounting part 311, so that the first flange 31 is clamped between the first friction member 231 and the second friction member 232, thereby enabling the first transmission assembly 2 to drive the first flange 31 to rotate more stably. The second flange 32 is drive-connected to the first flange 31. The second flange 32 can be used for drive-connection of the driven member 20, so that the first flange 31 drives the second flange 32 to rotate, thereby enabling the second flange 32 to drive the driven member 20 to rotate.

[0038] like Figure 1 and Figure 2 As shown, in one embodiment, the second transmission assembly 3 further includes a rotating shaft 33 and a gear 34. The rotating shaft 33 is connected to the second flange 32 in a transmission connection, and the gear 34 is connected to the rotating shaft 33 in a transmission connection. The gear 34 is used for mounting the driven member 20.

[0039] In this embodiment, to further facilitate the second transmission assembly 3 in transmitting power from the driving member 10 to the driven member 20, the second transmission assembly 3 may include a rotating shaft 33 and a gear 34. The rotating shaft 33 is rotatably disposed within the second flange 32, and the gear 34 is disposed at the end of the rotating shaft 33 away from the second flange 32, so that the second flange 32 is connected to the driven member 20 via the rotating shaft 33 and the gear 34. The gear 34 can mesh with the driven gear 34 of the driven member 20, so that the second flange 32 drives the rotating shaft 33 and the gear 34 to rotate, and the driven member 20 rotates under the rotation of the driven gear 34.

[0040] like Figure 1 and Figure 2 As shown, in one embodiment, the torque limiting device further includes a drive shaft 4, which is disposed in the connecting seat 21 and is connected to the connecting seat 21 in a driving manner. The drive shaft 4 is used to drive the output end of the drive member 10 in a driving manner.

[0041] In this embodiment, the torque limiting device further includes a third fastener 5, which can be a bolt or screw or other fastener. To facilitate the transmission of the driving force of the drive member 10 to the first transmission assembly 2, the connecting seat 21 may have a second mounting hole. The output shaft of the drive member 10 is mounted in the second mounting hole by a key connection, and the transmission shaft 4 is mounted in the second mounting hole by a key connection. The third fastener 5 locks the transmission shaft 4 and the output shaft of the drive member 10 respectively, which facilitates the drive member 10 to drive the connecting seat 21 to rotate and improves the stability of the transmission connection between the connecting seat 21 and the drive member 10.

[0042] like Figure 2 As shown, in one embodiment, the torque limiting device further includes a second fastener. The end of the connecting seat 21 away from the limiting component 22 has a first mounting hole 212. The second fastener passes through the first mounting hole 212 so that the second fastener abuts against the drive shaft 4.

[0043] In this embodiment, the torque limiting device further includes a second fastener (not shown), which can be a bolt or screw. To improve the stability of the connection between the drive shaft 4 and the output shaft of the drive member 10 and the connecting seat 21, the end of the connecting seat 21 away from the drive member 10 has a first mounting hole 212. The second fastener passes through the first mounting hole 212 and is used to lock the drive shaft 4 and the output shaft of the drive member 10 into the second mounting hole.

[0044] This utility model also proposes a film stripping and slag extrusion device, which includes a driving component 10, a driven component 20, and a torque limiting device. The specific structure of the torque limiting device is as described in the above embodiments. Since this film stripping and slag extrusion device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here. The output end of the driving component 10 is drivenly connected to the connecting seat 21, and the output end of the driven component 20 is drivenly connected to the second transmission assembly 3.

[0045] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A torque limiting device, characterized by, The rack and the first and second transmission assemblies arranged on the rack; The first transmission assembly comprises a connecting seat, a limiting assembly and a friction member, the connecting seat is used for connecting with the output end of the driving member, the limiting assembly is movably arranged on the connecting seat, the second transmission assembly is used for connecting with the driven member, the second transmission assembly is arranged on the connecting seat, and the second transmission assembly is in transmission connection with the connecting seat; The friction member is movably arranged on the connecting seat, and the friction member is located between the limiting assembly and the second transmission assembly, the limiting assembly is used for providing pressure to the friction member, so that the friction member has a first position abutting on the second transmission assembly and a second position separated from the second transmission assembly; Under the action of the limiting assembly, a variable resistance torque is formed between the friction member and the second transmission assembly, in the first position, the acting force of the driving member on the connecting seat is smaller than the resistance torque, the first transmission assembly is driven to rotate by the driving member, and the second transmission assembly is driven to rotate by the first transmission assembly; in the second position, the acting force of the driving member on the connecting seat is greater than the resistance torque, the first transmission assembly is driven to rotate by the driving member, and the first transmission assembly stops driving the second transmission assembly to rotate.

2. The torsion limiting device of claim 1, wherein The limiting assembly comprises an elastic member and a first fastener, the first fastener is arranged on the connecting seat, the elastic member is movably arranged on the connecting seat, and the two ends of the elastic member are in elastic abutment with the first fastener and the friction member respectively, so that the resistance torque is formed between the limiting assembly and the friction member.

3. The torsion limiting device of claim 2, wherein The friction member comprises a first friction member and a second friction member, the first friction member is arranged on the connecting seat, the second friction member is movably arranged on the connecting seat, a part of the second transmission assembly is located between the first friction member and the second friction member, and the second transmission assembly is in transmission connection with the first friction member and the second friction member.

4. The torsion limiting device of claim 3, wherein The limiting assembly further comprises a pressing plate, one end of the connecting seat away from the first fastener is provided with a first mounting portion, the pressing plate is in limiting abutment with the second friction member, the two ends of the elastic member are in elastic abutment with the first fastener and the pressing plate respectively, and the first friction member is arranged on the first mounting portion.

5. The torsion limiting device of claim 3, wherein The first friction member and the second friction member are arranged in the axial direction of the connecting seat, an adjustable clamping space is formed between the first friction member and the second friction member, a part of the second transmission assembly is arranged in the clamping space, the two ends of the elastic member are in elastic abutment with the first fastener and the second friction member respectively, and the elastic member is used for driving the second friction member to reset from the second position to the first position.

6. The torsion limiting device of claim 5, wherein The second transmission assembly comprises a first flange and a second flange, the first flange is provided with a second mounting portion, the first flange is inserted into the clamping space through the second mounting portion, so that the first flange is in transmission connection with the connecting seat, and the second flange is in transmission connection with the first flange.

7. The torsion limiting device of claim 6, wherein The second transmission assembly further comprises a rotating shaft and a gear, the rotating shaft is in transmission connection with the second flange, and the gear is in transmission connection with the rotating shaft, and the gear is used for mounting a driven part.

8. The torsion limiting device of claim 1, wherein The torsion limiting device further comprises a transmission shaft, the transmission shaft is arranged in the connecting seat, the transmission shaft is in transmission connection with the connecting seat, and the transmission shaft is used for transmission connection of an output end of a driving part.

9. The torsion limiting device of claim 8, wherein The torsion limiting device further comprises a second fastener, one end of the connecting seat away from the limiting assembly is provided with a first mounting hole, and the second fastener is arranged in the first mounting hole, so that the second fastener is in abutment with the transmission shaft.

10. A film withdrawal and slagging device, characterized in that The torsion limiting device comprises a driving part, a driven part and the torsion limiting device as claimed in any one of claims 1 to 9, an output end of the driving part is in driving connection with the connecting seat, and an output end of the driven part is in transmission connection with the second transmission assembly.

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