Rubber pulling and cutting mechanism

Abstract

The utility model discloses a rubber pulling and cutting mechanism which comprises a rubber pulling device and a rubber cutting device, the rubber pulling device comprises a rubber clamping assembly and a first driving assembly, and the rubber clamping assembly is arranged close to a rubber outlet in the first direction and used for clamping the free end of a rubber belt. The driving assembly is connected with the adhesive clamping assembly and used for driving the adhesive clamping air cylinder to move relative to the adhesive outlet in the first direction so as to pull out the adhesive tape. The rubber cutting device is arranged below the rubber pulling device and comprises a fixed tool apron, a quick-change tool apron, a cutter and a second driving assembly, and the bottom of the fixed tool apron is connected with the second driving assembly. The quick-change tool apron is arranged on the top of the fixed tool apron in parallel, and the bottom is clamped with the fixed tool apron. The cutter is arranged on one side, in the first direction, of the quick-change tool apron and used for driving the cutter to move in the third direction through the second driving assembly so as to cut off the adhesive tape between the adhesive outlet and the adhesive clamping assembly. And the quick-change tool apron is connected with the fixed tool apron in a clamping manner, so that the cutter can be quickly replaced after being polluted, the downtime of equipment is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of adhesive application equipment technology, specifically to an adhesive pulling and cutting mechanism. Background Technology

[0002] In the field of battery cell manufacturing, adhesive application is a crucial step in the process. Adhesive application alarms and defects are persistent problems that cannot be ignored during battery cell production. The adhesive application mechanism typically includes a tape unwinding reel, a tape guide reel assembly, a tape pulling assembly, and a tape cutting assembly. The tape pulling assembly grips the free end of the tape with jaws, pulling the tape a certain distance from the unwinding reel. Then, the tape cutting assembly cuts the tape. In existing technologies, adhesive application alarms and defects often occur at the tape pulling and cutting assemblies. For example, the cutter in the tape cutting assembly, due to prolonged operation, requires removing residual adhesive. This necessitates manual shutdown and cleaning with adhesive remover, taking at least 15 minutes each time. This requires cleaning residual adhesive four times a day, accumulating to a wasted hour of production capacity and severely impacting the overall efficiency of the equipment. Utility Model Content

[0003] To overcome the above-mentioned shortcomings, the purpose of this utility model is to provide a solution to the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts a glue-pulling and cutting mechanism applied to a battery cell adhesive applicator. The battery cell adhesive applicator includes a glue-supplying reel, a glue-opening reel assembly, and a glue outlet. The free end of the adhesive tape passes from the glue-supplying reel, wraps around the glue-opening reel assembly, and is placed at the glue outlet. The glue-pulling and cutting mechanism includes:

[0005] A tape-pulling device includes a tape-clamping assembly and a first driving assembly. The tape-clamping assembly is disposed along a first direction near the tape outlet and is used to clamp the free end of the tape. The driving assembly is connected to the tape-clamping assembly and is used to drive the tape-clamping cylinder to move relative to the tape outlet along the first direction to pull out the tape.

[0006] A tape-cutting device, located below the tape-pulling device, includes a fixed blade holder, a quick-change blade holder, a cutter, and a second drive assembly. The fixed blade holder extends along the second direction and its bottom is connected to the second drive assembly. The quick-change blade holder is parallel to the top of the fixed blade holder and its bottom is snap-fitted to the fixed blade holder. The cutter extends along the third direction and is located on one side of the quick-change blade holder along the first direction, and is driven by the second drive assembly to move the cutter along the third direction to cut the tape between the tape outlet and the tape clamping assembly.

[0007] This utility model provides a tape pulling and cutting mechanism that, through the coordinated work of a tape clamping assembly, a drive assembly, and a cutting device, achieves automatic tape pulling and cutting. The tape clamping assembly is positioned close to the tape outlet along a first direction, enabling more precise clamping of the free end of the tape and preventing it from slipping off during the pulling process due to unstable clamping. The drive assembly is connected to the tape clamping assembly and can drive the tape clamping cylinder to move relative to the tape outlet along the first direction, achieving stable tape pulling. A quick-change blade holder is parallel to the top of the fixed blade holder and its bottom is snapped into the fixed blade holder, facilitating quick blade replacement after contamination. This design greatly improves blade replacement efficiency, reduces equipment downtime, and increases production efficiency.

[0008] In some embodiments, the top of the fixed tool holder is provided with a slot that extends along the second direction. The bottom of the quick-change tool holder is provided with a protrusion that extends along the second direction and is correspondingly arranged with the slot along the third direction for engaging and fixing with the slot.

[0009] By adopting the above technical solution, a slot is set on the top of the fixed tool holder, and a protrusion corresponding to the slot is set on the bottom of the quick-change tool holder, which realizes the quick installation and disassembly of the quick-change tool holder, reduces tool replacement time, and improves the overall efficiency of the equipment.

[0010] In some embodiments, the adhesive clamping assembly includes an adhesive clamping cylinder and a gripper assembly. The adhesive clamping cylinder is disposed along the first direction corresponding to the adhesive outlet. The gripper assembly is disposed on the side of the adhesive clamping cylinder near the adhesive outlet along the first direction, and includes an upper adhesive clamping gripper and a floating adhesive pulling gripper. The upper adhesive clamping gripper and the floating adhesive pulling gripper are disposed parallel to each other along the second direction. The floating adhesive pulling gripper is connected to the drive end of the adhesive pulling cylinder and is used to drive the floating adhesive pulling gripper to move relative to the upper adhesive clamping gripper along the third direction by the adhesive pulling cylinder to clamp the adhesive tape.

[0011] With the above technical solution, the gripper assembly is arranged parallel to the second direction. This design can ensure that the gripper is subjected to uniform force when gripping the tape, and avoid tape deformation or unstable gripping caused by uneven force on the gripper.

[0012] In some embodiments, the floating adhesive-pulling gripper includes a connecting block, a gripper portion, and a rotating floating pin. Both the connecting block and the gripper portion extend along the second direction. One end of the connecting block along the first direction is connected to the drive end of the adhesive-pulling cylinder, and the other end extends to the gripper portion. The connecting block and the gripper portion have corresponding mounting openings along the first direction. The rotating floating pin is disposed within the mounting opening and is used to drive the gripper portion to swing during the adhesive-pulling process for floating compensation, thereby ensuring that the adhesive-pulling plane remains horizontal.

[0013] Using the above technical solution, the floating adhesive gripper, through the design of a rotating floating pin, can drive the gripper to swing during the adhesive application process, achieving floating compensation. That is, it adjusts the position and posture of the gripper in real time, so that the gripper can automatically adapt to the slight offset and positional error of the tape, ensuring that the adhesive application plane always remains horizontal. This improves the accuracy and consistency of adhesive application, reduces adhesive application failures caused by inaccurate tape position, and avoids adhesive application alarms and poor adhesive application.

[0014] In some embodiments, the cutting device further includes a magnetic fixing assembly, which includes magnetic blocks and positioning grooves. The magnetic blocks are respectively disposed at both ends of the slot along the second direction. The positioning grooves are respectively disposed on both sides of the protrusion along the second direction and are correspondingly disposed with respect to the magnetic blocks along the third direction, for attracting and fixing the quick-change blade holder by the magnetic blocks.

[0015] By adopting the above technical solution, the corresponding setting of the positioning groove and the magnetic block can ensure the precise alignment of the quick-change tool holder during installation. At the same time, the cooperation between the magnetic block and the positioning groove not only provides a stable fixing force, but also maintains the firmness of the tool holder under vibration or impact environment.

[0016] In some embodiments, the projections of the slot and the protrusion along the second direction are both inverted T-shaped.

[0017] By adopting the above technical solution, the inverted T-shaped slot and protrusion enable more precise positioning and stronger tensile strength, ensuring that the quick-change tool holder can be quickly aligned and fixed during installation, reducing loosening or detachment caused by external forces, and improving the overall accuracy of the equipment. At the same time, the inverted T-shaped structure design makes the installation and disassembly of the quick-change tool holder more convenient, requiring no complicated tools or cumbersome operations.

[0018] In some embodiments, the second drive component is a cutting cylinder that extends along the third direction and has its top drive end connected to the fixed blade holder.

[0019] By employing the above technical solution, the linear drive characteristic of the cylinder ensures that the cutter moves precisely in the predetermined direction, thereby improving the accuracy and consistency of tape cutting. Furthermore, the cylinder's rapid response capability enables efficient tape cutting, reducing uneven tape cuts caused by unstable cutter movement.

[0020] In some embodiments, the bottom of the quick-change tool holder is further provided with a limiting part, which extends along the third direction and is located at one end of the quick-change tool holder along the first direction, for abutting and limiting the fixed tool holder.

[0021] By adopting the above technical solution, the abutment and limiting function of the limiting part ensures that the quick-change cutter holder abuts and limits with the fixed cutter holder during installation to achieve precise positioning, thereby avoiding instability of the cutter or inaccurate cutting of the glue due to positional deviation.

[0022] In some embodiments, the first driving assembly includes a glue-pulling cylinder and a connector. The glue-pulling cylinder is located below the glue-clamping cylinder, and the connector is connected to the driving ends of the glue-clamping cylinder and the glue-pulling cylinder at both ends along the third direction, respectively, for driving the glue-clamping cylinder to move along the first direction via the glue-pulling cylinder.

[0023] By adopting the above technical solution, the connecting component connects the drive ends of the glue-pulling cylinder and the glue-clamping cylinder, ensuring that the two can maintain synchronization during the movement, thereby improving the stability and reliability of the glue-clamping process.

[0024] In some embodiments, the cutter is a serrated blade.

[0025] By employing the above technical solution, the serrated blade can achieve a smoother and cleaner cutting effect, avoiding tape deformation or uneven cuts caused by excessive cutting force, and reducing tape tearing or pulling. Simultaneously, because the serrated blade has multiple pointed edges, it avoids excessive contact area with the tape, preventing residual adhesive from adhering to the blade. Attached Figure Description

[0026] Figure 1 A partial structural diagram of a battery cell adhesive applicator;

[0027] Figure 2 This is a perspective view of a glue-cutting device according to an embodiment of the glue-pulling and glue-cutting mechanism of this utility model;

[0028] Figure 3 This is an exploded view of the structure of a cutting device according to an embodiment of the adhesive pulling and cutting mechanism of this utility model;

[0029] Figure 4 This is a perspective view of a glue clamping assembly according to an embodiment of a glue pulling and cutting mechanism of the present invention;

[0030] Figure 5 This is a bottom view of a quick-change blade holder according to an embodiment of a glue-pulling and cutting mechanism of this utility model;

[0031] In the picture:

[0032] 1. Battery cell adhesive applicator; 10. Adhesive supply reel; 11. Adhesive reel unloading assembly; 12. Adhesive outlet;

[0033] 2. Glue pulling device; 20. Glue clamping cylinder; 21. Gripper assembly; 22. Upper glue clamping gripper; 23. Connecting block; 24. Gripper part; 25. Rotary floating pin; 26. First drive assembly;

[0034] 3. Glue cutting device; 30. Fixed blade holder; 31. Slot; 32. Quick-change blade holder; 33. Protrusion; 34. Limiting part; 35. Cutting blade; 36. Second drive assembly; 37. Magnetic block; 38. Positioning groove. Detailed Implementation

[0035] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, 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 scope of protection of the present invention.

[0036] refer to Figures 1 to 4 , Figure 1 A partial structural schematic diagram of the battery cell adhesive applicator 1 is shown; Figure 2 A perspective view of the glue-cutting device 3 in a glue-pulling and glue-cutting mechanism provided in an embodiment of the present invention is shown; Figure 3 An exploded view of the structure of the glue cutting device 3 in a glue pulling and cutting mechanism provided in an embodiment of the present invention is shown; Figure 4 This illustration shows a perspective view of a glue clamping component in a glue pulling and cutting mechanism provided by an embodiment of the present invention.

[0037] like Figures 1 to 4 As shown, the technical solution provided in this application is a glue-pulling and glue-cutting mechanism applied to a battery cell adhesive applicator 1. The battery cell adhesive applicator includes a glue-feeding reel 10, a glue-opening reel group 11, and a glue outlet 12. The free end of the adhesive tape passes from the glue-feeding reel 10, wraps around the glue-opening reel group 11, and is placed at the glue outlet 12. The glue-pulling and glue-cutting mechanism includes a glue-pulling device 2 and a glue-cutting device 3, wherein:

[0038] The adhesive pulling device 2 includes an adhesive clamping assembly and a first drive assembly 26, the adhesive clamping assembly being driven along a first direction ( Figure 1 (As shown in the X direction) It is located near the dispensing port 12 and is used to clamp the free end of the tape. The drive assembly is connected to the clamping assembly and is used to drive the clamping cylinder 20 to move relative to the dispensing port 12 in the first direction to pull out the tape.

[0039] The glue-cutting device 3 is located below the glue-pulling device 2 and includes a fixed blade holder 30, a quick-change blade holder 32, a cutter 35, and a second drive assembly 36. The fixed blade holder 30 is located along the second direction ( Figure 1 Extending in the Y direction (as shown), the bottom is connected to the second drive assembly 36. The quick-change tool holder 32 is parallel to the top of the fixed tool holder 30, and its bottom is snap-fitted to the fixed tool holder 30. The cutter 35 extends in the third direction and is located on one side of the quick-change tool holder 32 in the first direction, for driving the cutter 35 in the third direction (as shown in the Y direction) via the second drive assembly 36. Figure 1 Move in the Z direction (as shown) to cut the tape between the glue outlet 12 and the glue clamping assembly.

[0040] This utility model provides a tape pulling and cutting mechanism that, through the coordinated operation of a tape clamping assembly, a drive assembly, and a tape cutting device 3, achieves automatic tape pulling and cutting. The tape clamping assembly is positioned close to the tape outlet 12 along a first direction, enabling more precise clamping of the free end of the tape and preventing the tape from slipping off due to unstable clamping during the tape pulling process. The drive assembly is connected to the tape clamping assembly and can drive the tape clamping cylinder 20 to move relative to the tape outlet 12 along the first direction, achieving stable tape pulling. A quick-change blade holder 32 is parallel to the top of the fixed blade holder 30 and its bottom is snapped into the fixed blade holder 30, facilitating quick replacement of the cutter 35 after it becomes contaminated. This design greatly improves the replacement efficiency of the cutter 35, reduces equipment downtime, and increases production efficiency.

[0041] In some embodiments, reference Figures 1 to 4 The top of the fixed tool holder 30 is provided with a slot 31, which extends along the second direction. The bottom of the quick-change tool holder 32 is provided with a protrusion 33, which extends along the second direction and is correspondingly arranged with the slot 31 along the third direction for engaging and fixing with the slot 31.

[0042] For example, by providing a slot 31 on the top of the fixed tool holder 30 and a protrusion 33 corresponding to the slot 31 on the bottom of the quick-change tool holder 32, the quick-change tool holder 32 can be quickly installed and disassembled, reducing tool replacement time and improving the overall efficiency of the equipment.

[0043] In some embodiments, reference Figures 1 to 4 The adhesive clamping assembly includes an adhesive clamping cylinder 20 and a gripper assembly 21. The adhesive clamping cylinder 20 is arranged in a first direction corresponding to the adhesive outlet 12. The gripper assembly 21 is located on the side of the adhesive clamping cylinder 20 close to the adhesive outlet 12 in the first direction. It includes an upper adhesive clamping gripper 22 and a floating adhesive pulling gripper. The upper adhesive clamping gripper 22 and the floating adhesive pulling gripper are arranged parallel to each other in a second direction. The floating adhesive pulling gripper is connected to the drive end of the adhesive pulling cylinder and is used to drive the floating adhesive pulling gripper to move relative to the upper adhesive clamping gripper 22 in a third direction through the adhesive pulling cylinder in order to clamp the adhesive tape.

[0044] For example, the gripper assembly 21 is arranged parallel to the second direction. This design ensures that the grippers are subjected to uniform force when gripping the tape, avoiding tape deformation or unstable gripping caused by uneven force on the grippers.

[0045] In some embodiments, reference Figures 1 to 4The floating adhesive-pulling gripper includes a connecting block 23, a gripper portion 24, and a rotating floating pin 25. Both the connecting block 23 and the gripper portion 24 extend along a second direction. One end of the connecting block 23 along a first direction is connected to the drive end of the adhesive-pulling cylinder, and the other end extends to the gripper portion 24. The connecting block 23 and the gripper portion 24 have corresponding mounting openings along the first direction. The rotating floating pin 25 is located within the mounting opening and is used to drive the gripper portion 24 to swing during the adhesive-pulling process for floating compensation, ensuring that the adhesive-pulling plane remains horizontal.

[0046] For example, the floating adhesive-pulling jaws, through the design of the rotating floating pin 25, can drive the jaw part 24 to swing during the adhesive-pulling process, thereby achieving floating compensation. That is, the position and posture of the jaws are adjusted in real time, so that the jaws can automatically adapt to the slight offset and position error of the tape, ensuring that the adhesive-pulling plane always remains horizontal, thereby improving the accuracy and consistency of adhesive-pulling and reducing adhesive-pulling failures caused by inaccurate tape position.

[0047] refer to Figure 5 , Figure 5 The image shows a bottom view of the quick-change blade holder 32 in a glue-pulling and cutting mechanism provided in an embodiment of the present invention;

[0048] In some embodiments, reference Figure 5 and Figure 3 The cutting device 3 also includes a magnetic fixing assembly, which includes a magnetic block 37 and a positioning groove 38. The magnetic block 37 is respectively located at both ends of the slot 31 along the second direction. The positioning groove 38 is respectively located on both sides of the protrusion 33 along the second direction and is correspondingly arranged with the magnetic block 37 along the third direction. The quick-change blade holder 32 is made of steel and can be fixed by magnetic attraction through the magnetic block 37.

[0049] For example, the corresponding arrangement of the positioning groove 38 and the magnetic block 37 can ensure the precise alignment of the quick-change tool holder 32 during installation. At the same time, the cooperation between the magnetic block 37 and the positioning groove 38 not only provides a stable fixing force, but also maintains the firmness of the quick-change tool holder 32 under vibration or impact environment.

[0050] In some embodiments, reference Figures 1 to 4 The projections of the slot 31 and the protrusion 33 along the second direction are both inverted T-shaped.

[0051] For example, the inverted T-shaped slot 31 and protrusion 33 enable more precise positioning and stronger tensile strength, ensuring that the quick-change tool holder 32 can be quickly aligned and fixed during installation, reducing loosening or detachment caused by external forces, and improving the overall accuracy of the equipment. At the same time, the inverted T-shaped structure design makes the installation and disassembly of the quick-change tool holder 32 more convenient, without the need for complicated tools or cumbersome operations.

[0052] In some embodiments, reference Figures 1 to 4The second drive assembly 36 is a cutting cylinder that extends along a third direction, and the top drive end is connected to the fixed blade holder 30.

[0053] For example, the linear drive characteristic of the cylinder ensures that the cutter 35 moves precisely in a predetermined direction, thereby improving the accuracy and consistency of tape cutting. Furthermore, the cylinder's rapid response capability enables efficient tape cutting, reducing uneven tape cuts caused by unstable movement of the cutter 35.

[0054] In some embodiments, reference Figures 1 to 4 The bottom of the quick-change tool holder 32 is also provided with a limiting part 34. The limiting part 34 extends along a third direction and is located at one end of the quick-change tool holder 32 along the first direction, for abutting and limiting with the fixed tool holder 30.

[0055] For example, the abutting and limiting function of the limiting part 34 ensures that the quick-change blade holder 32 abuts and limits with the fixed blade holder 30 during installation to achieve precise positioning, thereby avoiding instability of the cutter 35 or inaccurate glue cutting due to positional deviation.

[0056] In some embodiments, reference Figures 1 to 4 The first drive assembly 26 includes a glue-pulling cylinder and a connector. The glue-pulling cylinder is located below the glue-clamping cylinder 20. The two ends of the connector along the third direction are respectively connected to the drive ends of the glue-clamping cylinder 20 and the glue-pulling cylinder, and are used to drive the glue-clamping cylinder 20 to move along the first direction through the glue-pulling cylinder.

[0057] For example, the connector connects the drive ends of the glue-pulling cylinder and the glue-clamping cylinder 20 to ensure that the two can remain synchronized during movement. The glue-pulling cylinder directly drives the glue-clamping cylinder 20 to move along the first direction, reducing intermediate transmission links (such as gears, connecting rods, etc.), reducing mechanical transmission errors and failure rates, and improving the stability and reliability of the glue-clamping process.

[0058] In some embodiments, reference Figure 2 and Figure 3 The 35-inch cutter is a serrated blade.

[0059] For example, a serrated blade can achieve a smoother and cleaner cut, avoiding tape deformation or uneven cuts caused by excessive cutting force, and reducing tape tearing or pulling. At the same time, because the serrated blade has multiple pointed edges, it can avoid excessive contact area with the tape, preventing residual adhesive from adhering to the blade.

[0060] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They cannot be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A pulling and cutting mechanism for an electrode taping machine, the electrode taping machine comprising a tape supply wheel, a tape opening wheel set, and a tape outlet, a free end of a tape being wound from the tape supply wheel, through the tape opening wheel set, and to the tape outlet, characterized in that, The pulling and cutting mechanism comprises: A first direction, which is the X direction; A second direction, which is the Y direction; A third direction, which is the Z direction; A pulling device, comprising a clamping assembly and a first driving assembly, the clamping assembly is arranged along the first direction close to the glue outlet for clamping the free end of the adhesive tape; the driving assembly is connected with the clamping assembly for driving the clamping cylinder to move along the first direction relative to the glue outlet to pull out the adhesive tape; A cutting device is arranged below the pulling device, comprising a fixed knife holder, a quick-change knife holder, a cutting knife and a second driving assembly, the fixed knife holder extends along the second direction, the bottom is connected with the second driving assembly; the quick-change knife holder is arranged in parallel on the top of the fixed knife holder, the bottom is connected with the fixed knife holder by clamping; the cutting knife extends along the third direction and is arranged on one side of the quick-change knife holder along the first direction, for driving the cutting knife to move along the third direction by the second driving assembly to cut off the adhesive tape between the glue outlet and the clamping assembly.

2. The drag cutting mechanism of claim 1, wherein, The top of the fixed knife holder is provided with a clamping groove, which extends along the second direction; the bottom of the quick-change knife holder is provided with a protrusion, which extends along the second direction and is arranged corresponding to the clamping groove along the third direction, for clamping and fixing with the clamping groove.

3. The drag cutting mechanism of claim 1, wherein, The clamping assembly comprises a clamping cylinder and a clamping jaw group, the clamping cylinder is arranged corresponding to the glue outlet along the first direction, the clamping jaw group is arranged on one side of the clamping cylinder close to the glue outlet along the first direction, comprising an upper clamping jaw and a floating pulling clamping jaw, the upper clamping jaw and the floating pulling clamping jaw are arranged in parallel along the second direction, the first driving assembly comprises a pulling cylinder, the floating pulling clamping jaw is connected with the driving end of the pulling cylinder, for driving the floating pulling clamping jaw to move relative to the upper clamping jaw along the third direction by the pulling cylinder to clamp the adhesive tape.

4. The drag cutting mechanism of claim 3, wherein, The floating pulling clamping jaw comprises a connecting block, a clamping jaw part and a rotating floating pin, the connecting block and the clamping jaw part both extend along the second direction, one end of the connecting block is connected with the driving end of the pulling cylinder along the first direction, the other end extends with the clamping jaw part; the connecting block and the clamping jaw part are provided with corresponding mounting holes along the first direction, the rotating floating pin is arranged in the mounting hole, for driving the clamping jaw part to swing for floating compensation in the pulling process through the rotating floating pin, to ensure that the pulling plane is in a horizontal state.

5. The drag cutting mechanism of claim 2, wherein, The cutting device further comprises a magnetic attraction fixing assembly, the magnetic attraction fixing assembly comprises a magnetic block and a positioning groove, the magnetic block is arranged at both ends of the clamping groove along the second direction respectively; the positioning groove is arranged at both sides of the protrusion along the second direction respectively, and is arranged corresponding to the magnetic block along the third direction, for fixing the quick-change knife holder by the magnetic block.

6. The drag cutting mechanism of claim 2, wherein, The projection of the clamping groove and the protrusion along the second direction is inverted T-shaped.

7. The drag cutting mechanism of claim 1, wherein, The second driving assembly is a cutting cylinder, which extends along the third direction, and the driving end of the top is connected with the fixed knife holder.

8. The drag cutting mechanism of claim 1, wherein, The bottom of the quick-change tool holder is further provided with a limiting part extending along the third direction and arranged at one end of the quick-change tool holder along the first direction, for abutting against the fixed tool holder for limiting.

9. The drag cutting mechanism of claim 3, wherein, The first driving assembly comprises a connecting piece, the rubber pulling cylinder is arranged below the rubber clamping cylinder, and the connecting piece is connected with the driving end of the rubber clamping cylinder and the rubber pulling cylinder respectively at two ends along the third direction, for driving the rubber clamping cylinder to move along the first direction through the rubber pulling cylinder.

10. The drag cutting mechanism of claim 1, wherein, The cutter is a sawtooth cutter.

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