CN114453643B

CN114453643B - Multi-group cam welding strip cutting mechanism

Info

Publication number: CN114453643B
Application number: CN202210188278.0A
Authority: CN
Inventors: 张建党; 揭小龙; 张治雨; 权微娟
Original assignee: Fengyang Zhaori Energy Technology Co ltd
Current assignee: Fengyang Zhaori Energy Technology Co ltd
Priority date: 2022-02-28
Filing date: 2022-02-28
Publication date: 2024-01-09
Anticipated expiration: 2042-02-28
Also published as: CN114453643A

Abstract

The invention discloses a multi-group cam welding strip cutting mechanism, which relates to the technical field of photovoltaic automatic production equipment and comprises a cutting knife part, a power part, a supporting part and a transmission part, wherein the cutting knife part comprises a fixed knife holder, a movable knife holder and a wire passing knife, the cutting knives are arranged on two sides of the fixed knife holder and the movable knife holder and are tightly attached, a plurality of grooves for accommodating welding strips are uniformly distributed on the cutting knives and the wire passing knife, the contact positions of the cutting knives of the fixed knife holder and the movable knife holder and the contact positions of the wire passing knife and the cutting knives of the movable knife holder are knife edges, the transmission part comprises a main shaft, a poking wheel is arranged on the main shaft, a convex point is arranged on the circumference of the poking wheel, a swinging rod is fixedly connected below the movable knife holder, the swinging rod is provided with a first bearing wheel matched with the poking wheel, the moving direction of the movable knife holder is perpendicular to the welding strip direction, a reset mechanism is arranged on the side surface of the movable knife holder, and the power part is connected with the main shaft. The invention can improve the cutting efficiency of the welding strip without improving the wire drawing speed.

Description

Multi-group cam welding strip cutting mechanism

Technical Field

The invention relates to the technical field of photovoltaic automatic production equipment, in particular to a multi-group cam welding strip cutting mechanism.

Background

The earth is the only home on which human beings depend to live, and the human beings need to accelerate the formation of green development modes and life styles, build ecological civilization and beautify the earth and cope with climate change. The development of sustainable green energy is urgent, clean energy represented by wind power, photoelectricity and water power becomes the dominant force of energy conservation and emission reduction, especially photoelectricity is dominant, the technical route is relatively simple, the advantages of being not limited by regions and being widely applied are widely recognized by various industries, and therefore the photovoltaic industry is also very beginning to develop, and a plurality of technologies are changed in a subversion way. In the wave photovoltaic revolution, the TOPCON battery and the heterojunction battery (HJT) become wind marks developed in the photovoltaic industry due to the characteristics of higher battery conversion efficiency and low attenuation, compared with a conventional battery, although the TOPCON battery and the heterojunction battery (HJT) have outstanding advantages, the manufacturing cost of the battery piece is relatively high, and the TOPCON battery and the heterojunction battery become main resistance for development, so in order to meet the requirements of rapid development in the photovoltaic industry, the manufacturing cost of the battery piece is very important, the slurry ratio in the manufacturing cost of the battery piece is about 24 percent, and only is inferior to a silicon wafer, so the consumption of silver paste of the battery piece is very important in the process of reducing, and as the number of main grids of the battery piece is increased, the main grid printing of the battery piece is required to be thinner and thinner, so the consumption of the silver paste can be reduced. The method comprises the steps of firstly connecting the positive electrodes and the negative electrodes of a plurality of battery pieces in series by using a welding belt, then connecting the positive electrodes and the negative electrodes of a plurality of battery strings in series to form a component, and then packaging to form the finished component in the market. The photovoltaic stringer is equipment for connecting the positive electrode and the negative electrode of the battery piece together in series, along with the thinner and thinner main grid of the battery piece, the diameter of a photovoltaic welding strip is also thinner and thinner, the precision of the equipment is required to be higher and higher, the welding strip is required to be placed at a fixed point, the battery piece is placed above the welding strip through vision, the center overlap ratio between the welding strip and the main grid of the battery piece is required to deviate by not more than 0.05mm, otherwise, the virtual welding is easy between the welding strip and the battery piece, the yield of the battery string is too low, and the battery string is produced in an uncomfortable amount.

The traditional welding strip cutting mechanism is generally large in opening and closing, is extremely unfriendly to operators, long in cutting action stroke and low in efficiency, can only cut single-end welding strips, obviously limits the productivity by the number of the cutting welding strips, wants to improve the beat of equipment, firstly improves the wire pulling speed of a wire connecting mechanism, obviously limits the speed of the wire pulling mechanism by the speed of a module, and is difficult to improve again, and secondly improves the productivity by cutting while adopting a plurality of groups of welding strips. But the simultaneous cutting of multiunit welding area has put forward new requirement to the structure of equipment, need the welding area cut and level and more easily with the welding area tool setting of cutting mechanism during the welding, the blade needs very convenient with the counterpoint of welding area to need to take into account the security of cutting mechanism.

Disclosure of Invention

1. Technical problem to be solved by the invention

Aiming at the technical problems that the traditional welding strip cutting efficiency is low and the stay wire speed of the welded strip is limited, the invention provides a multi-group cam welding strip cutting mechanism which improves the cutting efficiency of the welding strip under the condition that the stay wire speed is not required to be improved.

2. Technical proposal

In order to solve the problems, the technical scheme provided by the invention is as follows:

the utility model provides a multiunit cam welds area cutting mechanism, includes cutter part, power component, supporting part and drive unit, the cutter part includes fixed blade holder, removes blade holder and crosses the line sword, fixed blade holder with the both sides of removing the blade holder all are equipped with the cutter just the cutter closely laminates, the cutter with cross a plurality of recesses that are used for holding the welding strip that all are equipped with evenly distributed on the line sword, fixed blade holder and the contact position of the cutter of removing the blade holder cross the line sword with the contact position of the cutter of removing the blade holder is the edge of a knife, drive unit includes the main shaft, be equipped with the thumb wheel on the main shaft, be equipped with the bump on the circumference of thumb wheel, remove the blade holder below rigid coupling have the pendulum rod, the pendulum rod be equipped with thumb wheel complex first bearing wheel, the direction of movement of removing the blade holder is perpendicular with the welding strip direction, the side of removing the blade holder is equipped with canceling release mechanical system, power component with the main shaft is connected.

Optionally, the fixed blade holder is connected with fixed cylinder, fixed blade holder below is equipped with the guide rail, the output direction of fixed cylinder and the direction of guide rail are all parallel with the welding strip direction.

Optionally, the line pressing part is arranged beside the line passing knife, the line pressing part comprises an anti-off line cylinder, a floating line pressing group, a line pressing plate and a separation cylinder, the line passing knife is connected to the supporting plate in a sliding manner through a sliding rail structure, the sliding direction of the line passing knife is parallel to the direction of the welding strip, the separation cylinder is connected to the line passing knife, the anti-off line pressing cylinder is connected to the floating line pressing group, a plurality of protrusions which are uniformly arranged and used for pressing the welding strip downwards are arranged below the floating line pressing group, and the line pressing plate is matched with the protrusions of the floating line pressing group.

Optionally, a cam is arranged on the main shaft, the cam is contacted with a second bearing wheel in a matched manner, the second bearing wheel is fixedly connected with a first bottom plate, a sliding rail structure is arranged on the first bottom plate and connected with the movable tool apron and the fixed tool apron, and the cam drives the second bearing wheel to move vertically.

Alternatively, the contact time of the second bearing wheel and the salient point of the poking wheel and the contact time of the first bearing wheel and the salient point of the cam on the main shaft occur simultaneously.

Optionally, the supporting component comprises a mounting plate, a second bottom plate and a mounting block, wherein the mounting plate is connected with the power component, the mounting block is connected with the main shaft through a rolling bearing, and the second bottom plate is fixedly connected with the mounting plate and the mounting block.

Alternatively, the two sides of the first bottom plate vertically extend to form a plate body, the plate body is slidably connected with the mounting block, and the plate body is connected with the second bottom plate through an elastic piece.

Optionally, the side of the movable tool apron is respectively provided with a limiting mechanism, the reset mechanism is in close contact with the movable tool apron, and an elastic element for elastically pushing the movable tool apron is arranged in the reset mechanism.

Optionally, the protruding points are arc-shaped, and the protruding points and the thumb wheel are arc-shaped transition.

Alternatively, the transmission member includes a coupling connecting the power member and the main shaft.

3. Advantageous effects

Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:

the technical scheme provided by the invention adopts a mode of cutting a plurality of grooves and a plurality of groups of welding strips, improves the cutting efficiency of the welding strips under the condition of not improving the wire pulling speed, and is provided with a matched structure of a fixed cutter holder and a movable cutter holder, and the movable cutter holder is shifted by a shifting wheel to quickly cut the welding strips, so that the beat and the cutting efficiency of the welding strips are ensured; furthermore, a fixed cylinder is arranged at the fixed tool apron and used for supporting the fixed tool apron, so that the fixed tool apron is tightly attached to the movable tool apron, and the smoothness of the welding strip cutting opening is improved; further, a wire pressing part for pressing down the welding strip is arranged to prevent the welding strip from being out of position; furthermore, a cam structure is arranged for adjusting the heights of the fixed tool apron and the movable tool apron so as to make room for placing the welding strip and avoid interference.

Drawings

Fig. 1 is a schematic structural diagram of a multi-group cam welding strip cutting mechanism according to an embodiment of the present invention.

Fig. 2 is a top view of a multi-set cam solder strip cutting mechanism according to an embodiment of the present invention.

Fig. 3 is a cross-sectional view of a multi-set cam solder strip cutting mechanism according to an embodiment of the present invention.

Fig. 4 is a schematic view of a cam angle structure of a multi-group cam welding strip cutting mechanism according to an embodiment of the present invention.

Fig. 5 is an axial schematic diagram of cam directions of a multi-group cam welding strip cutting mechanism according to an embodiment of the present invention.

Fig. 6 is an axial schematic diagram of a thumb wheel direction of a multi-group cam welding strip cutting mechanism according to an embodiment of the present invention.

Fig. 7 is a schematic structural diagram of a dial wheel angle of a multi-group cam welding strip cutting mechanism according to an embodiment of the present invention.

Fig. 8 is a schematic structural diagram of a soldering flux feeding mechanism, a multi-group cam solder strip cutting mechanism and a wire pulling mechanism according to an embodiment of the present invention.

1. An anti-off-line cylinder; 2. a floating wire set; 3. a wire pressing plate; 4. separating the air cylinder; 5. a cylinder connecting plate; 6. a floating joint; 7. a support plate; 8. a wire cutter; 9. a first moving cutter; 10. cutting the guide rail; 11. moving the tool apron; 12. a second movable cutter; 13. a locking pin; 14. fixing the tool apron; 15. a fixed cylinder; 16. a second bearing wheel; 17. a first base plate; 18. A rolling bearing; 19. a coupling; 20. a mounting plate; 21. a servo motor; 22. a key; 23. a main shaft; 24. a second base plate; 25. a mounting block; 26. a return spring assembly; 27. a cam; 28. swing rod; 29. a first bearing wheel; 30. a thumb wheel; 31. A limiting mechanism; 32. a reset mechanism; 33. a cutting mechanism; 34. a wire pulling mechanism; 35. a flux supply mechanism; 36. a servo module; 37. a hub link.

Detailed Description

For a further understanding of the present invention, the present invention will be described in detail with reference to the drawings and examples.

The present application is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the invention are shown in the drawings. The first, second, etc. words are provided for convenience in describing the technical scheme of the present invention, and have no specific limitation, and are all generic terms, and do not constitute limitation to the technical scheme of the present invention. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art. The technical schemes in the same embodiment and the technical schemes in different embodiments can be arranged and combined to form a new technical scheme without contradiction or conflict, which is within the scope of the invention.

Example 1

With reference to fig. 1-8, the multi-group cam welding strip cutting mechanism comprises a cutting knife part, a power part, a supporting part and a transmission part, wherein the cutting knife part comprises a fixed knife holder 14, a movable knife holder 11 and a wire passing knife 8, the cutting knives are arranged on two sides of the fixed knife holder 14 and the movable knife holder 11 and are tightly attached, a plurality of evenly distributed grooves for accommodating welding strips are formed in the cutting knives and the wire passing knife 8, the contact positions of the cutting knives of the fixed knife holder 14 and the movable knife holder 11 and the contact positions of the wire passing knife 8 and the cutting knives of the movable knife holder 11 are knife edges, the transmission part comprises a main shaft 23, a deflector wheel 30 is arranged on the main shaft 23, bumps are arranged on the circumference of the deflector wheel 30, a swinging rod 28 is fixedly connected below the movable knife holder 11, a first bearing wheel 29 matched with the deflector wheel 30 is arranged on the swinging rod 28, the moving direction of the movable knife holder 11 is perpendicular to the welding strip direction, a reset mechanism 32 is arranged on the side surface of the movable knife holder 11, and the power part is connected with the main shaft 23.

As shown in fig. 8, the cam-type solder strip cutting mechanism 33 is one mechanism of the solder strip production device, and associated with the mechanism is a wire pulling mechanism 34 and a soldering flux feeding mechanism 35, wherein the wire pulling mechanism 34 is positioned at the end of the fixed cutter holder 14, the soldering flux feeding mechanism 35 is positioned at the end of the wire passing knife 8, and the solder strip passes through the following direction: the soldering flux supply mechanism 35, the plurality of sets of cam solder strip cutting mechanisms 33 and the wire pulling mechanism 34, the soldering flux is stored in the soldering flux supply mechanism 35, and when the solder strip passes through the soldering flux supply mechanism 35, the soldering flux is coated on the surface of the solder strip, and then reaches the plurality of sets of cam solder strip cutting mechanisms 33. The soldering flux supply mechanism 35, the cam welding strip cutting mechanism 33 and the stay wire mechanism 34 are all connected to a bracket, the bracket is connected with the servo module 36 and the slide rail, the stay wire mechanism 34 is connected to the slide rail, and the movement of the stay wire mechanism 34 is controlled by the servo module 36. The wire pulling mechanism 34 is provided with a plurality of small cylinders, the output ends of the small cylinders are hinged with a swinging lever structure, the other ends of the swinging lever structure are matched with clamping jaws for clamping welding strips, and likewise, the clamping jaws are matched with the small cylinders in number and are the same as the cutting knives of the multi-group cam welding strip cutting mechanism 33 and the grooves of the wire passing knife 8. The guide rail below the movable tool holder 11 is a cutting guide rail 10. The fixed cutter holder 14 and the movable cutter holder 11 play a role in supporting the cutter, the cutter positioned on the fixed cutter holder 14 is a fixed cutter, the cutter positioned on the movable cutter holder 11 is a movable cutter, and as shown in fig. 1-3, the movable cutter is divided into a first movable cutter 9 and a second movable cutter 12. When cutting, the first movable cutter 9 is attached to the wire passing cutter 8, the second movable cutter 12 is attached to the fixed cutter, and when the movable cutter holder 11 moves along the direction perpendicular to the welding strip, the welding strip can be cut. The groove is slender, and the welding strip can be well positioned in the groove. The main shaft 23 is used for driving, the thumb wheel 30 is matched with the first bearing wheel 29, the thumb wheel 30 is provided with protruding points, after the main shaft 23 drives the thumb wheel 30 to rotate, the protruding points collide with the first bearing wheel 29, so that the first bearing wheel 29 moves, the first bearing wheel 29 is fixedly connected with the movable tool apron 11, and therefore the movable tool apron 11 moves and cuts welding strips simultaneously. When the bump collides with the first bearing wheel 29, the reset mechanism 32 controls the movable tool apron 11 to reset, so that the thumb wheel 30 is continuously attached to the first bearing wheel 29. The thumb wheel 30 is fixedly connected with the main shaft 23 through a key 22, and the key 22 is used for circumferential limitation. In this embodiment, the power units are connected to a controller for synchronously controlling the action processes of the wire pulling mechanism 34, the cam strap cutting mechanism 33 and the flux feeding mechanism 35. The power component is a servo motor 21. As shown in fig. 8, a wire collecting chain 37 is arranged below the bracket, and pipeline lines are built in, so that the wire is prevented from being broken by movement of the wire pulling mechanism 34, and meanwhile, the wires are orderly and neatly collected, and the pipeline lines are prevented from being placed in disorder.

The fixed tool apron 14 is connected with a fixed cylinder 15, a guide rail is arranged below the fixed tool apron 14, and the output direction of the fixed cylinder 15 and the direction of the guide rail are parallel to the welding strip direction. A fixed cylinder 15 is arranged at the fixed cutter holder 14 and is used for supporting the fixed cutter holder 14, so that the fixed cutter holder 14 is tightly attached to the movable cutter holder 11, and the smoothness of the welding strip cutting opening is improved. The output end of the fixed cylinder 15 is connected with the fixed tool apron 14 through a locking pin 13.

The wire pressing device is characterized in that a wire pressing component is arranged beside the wire passing knife 8 and comprises an anti-off wire cylinder 1, a floating wire pressing group 2, a wire pressing plate 3 and a separation cylinder 4, the wire passing knife 8 is connected to the supporting plate 7 in a sliding mode through a sliding rail structure, the sliding direction of the wire passing knife 8 is parallel to the welding strip direction, the separation cylinder 4 is connected to the wire passing knife 8, the anti-off wire pressing cylinder 1 is connected to the floating wire pressing group 2, a plurality of protrusions which are uniformly arranged and used for pressing down welding strips are arranged below the floating wire pressing group 2, and the wire pressing plate 3 is matched with the protrusions of the floating wire pressing group 2 to prevent the welding strips from being out of position. The separating cylinder 4 is used for moving the wire passing knife 8 back for a certain distance after the welding strip is cut, so that the phenomenon that the smoothness of the cut is influenced due to friction or collision after the cut of the welding strip is reset is avoided. The separating cylinder 4 is connected with the line pressing plate 3 through a cylinder connecting plate 5 and a floating joint 6.

The main shaft 23 is provided with a cam 27, the cam 27 is matched with and contacted with a second bearing wheel 16, the second bearing wheel 16 is fixedly connected with a first bottom plate 17, the first bottom plate 17 is provided with a sliding rail structure and is connected with the movable tool apron 11 and the fixed tool apron 14, the cam 27 drives the second bearing wheel 16 to move vertically, and the heights of the fixed tool apron 14 and the movable tool apron 11 are adjusted to give up space for placing welding strips, so that interference is avoided. The contact time of the maximum eccentric distance point of the cam 27 on the main shaft 23 and the second bearing wheel 16 and the contact time of the protruding point of the thumb wheel 30 and the first bearing wheel 29 occur simultaneously. In order to ensure the cutting efficiency of the welding strip, improve the degree of the whole automation, shorten the time of cutting beat, the power component is operated all the time, the main shaft 23 is rotated all the time, the welding strip is cut when the fixed cutter holder 14 and the movable cutter holder 11 are lifted to the highest position, at the moment, the convex point of the shifting wheel 30 is contacted with the first bearing wheel 29, and the movable cutter holder 11 moves along the direction perpendicular to the welding strip to cut the welding strip. The spindle 23 always rotates, the whole process of drawing and cutting the welding strip can be performed, the beat time is short, and the cutting efficiency is high.

The support component comprises a mounting plate 20, a second bottom plate 24 and a mounting block 25, wherein the mounting plate 20 is connected with the power component, the mounting block 25 is connected with the main shaft 23 through a rolling bearing 18, and the second bottom plate 24 is fixedly connected with the mounting plate 20 and the mounting block 25. The mounting plate 20, the second base plate 24 and the mounting block 25 all function as support.

The two sides of the first bottom plate 17 are vertically extended with plate bodies, the plate bodies are slidably connected with the mounting blocks 25, and the plate bodies are connected with the second bottom plate 24 through elastic members. The elastic member is used to help the first bottom plate 17 return, the moving direction of the first bottom plate 17 is up and down, the cam 27 pushes the first bottom plate 17 up, and the elastic member pulls the first bottom plate 17 down to return, in this embodiment, the elastic member is a return spring assembly 26.

The side surfaces of the movable tool apron 11 are respectively provided with a limiting mechanism 31, the reset mechanism 32 is in close contact with the movable tool apron 11, and an elastic element for elastically pushing the movable tool apron 11 is arranged in the reset mechanism 32. In this embodiment, the elastic element is an elastic tubular object, after the thumb wheel 30 collides with the first supporting wheel 29, the elastic element is extruded by the movable tool holder 11 to generate elastic force, after the collision, the convex point rotates past the first supporting wheel 29, the elastic element returns the movable tool holder 11 to the original position, and at this time, the circular side surface of the thumb wheel 30 is attached to the first supporting wheel 29. The limiting mechanism 31 and the reset mechanism 32 are respectively located at two sides of the movable tool apron 11, as shown in fig. 6-7, the limiting mechanism 31 is a limiting screw, so that the movable tool apron 11 is prevented from flying out at the left side. The elastic piece is included, and the elastic reset mechanism 32 has the advantages of high rebound reset speed, sensitivity and low cost.

The protruding points are arc-shaped, and the protruding points and the poking wheel 30 are in arc-shaped transition. The arc-shaped transition and the arc-shaped transition are softer to collide with each other relative to the shape with the edges and corners, have certain buffering, can not generate great collision force, reduce the damage probability of the mechanism, and effectively reduce noise.

The transmission part comprises a coupler 19, the coupler 19 is connected with the power part and the main shaft 23, so that the power part and the main shaft 23 are convenient to detach and mount, different power parts and main shafts 23 can be adapted, and the application range is improved.

Working principle:

the welding strip is coated with soldering flux by a soldering flux supply mechanism 35 and then enters a plurality of groups of cam welding strip cutting mechanisms 33, the head of the welding strip is exposed, a wire pulling mechanism 34 clamps and pulls out the welding strip, a servo motor 21 is started, a main shaft 23 rotates, the welding strip is placed and pulled when a cam 27 lowers a first bottom plate 17 to the lower position, when the cam 27 pushes the first bottom plate 17 to the highest position, the protruding point of a deflector wheel 30 collides with a first bearing wheel 29, a cutter seat 11 is moved to transversely move, the welding strip is cut, a wire passing cutter 8 is moved back by a certain distance by a separating cylinder 4 after cutting, the phenomenon that the smoothness of the cut is influenced by friction or collision is avoided after the cut of the welding strip is reset is avoided, and finally the welding strip is taken out by matching with a welding strip clamping device, so that cutting is completed.

The invention and its embodiments have been described above by way of illustration and not limitation, and the invention is illustrated in the accompanying drawings and described in the drawings in which the actual structure is not limited thereto. Therefore, if one of ordinary skill in the art is informed by this disclosure, the structural mode and the embodiments similar to the technical scheme are not creatively designed without departing from the gist of the present invention.

Claims

1. The utility model provides a multiunit cam welding area cutting mechanism, its characterized in that, including cutter part, power component, supporting part and drive unit, cutter part includes fixed blade holder, removes blade holder and wire passing cutter, fixed blade holder with the both sides of removing the blade holder all are equipped with the cutter just the cutter closely laminates, the cutter with all be equipped with evenly distributed's a plurality of recesses that are used for holding the welding area on the wire passing cutter, fixed blade holder and the contact position of the cutter of removing the blade holder the wire passing cutter with the contact position of the cutter of removing the blade holder is the edge of a knife, the drive unit includes the main shaft, be equipped with the thumb wheel on the main shaft, be equipped with the bump on the circumference of thumb wheel, remove the blade holder below rigid coupling have the pendulum rod, the pendulum rod be equipped with thumb wheel complex first and hold the wheel, the direction of movement of removing the blade holder is perpendicular with the welding area direction, power component with the main shaft is connected, be equipped with the cam on the main shaft, the cam cooperation has the second to hold the wheel, the second holds the wheel and is equipped with in contact with the first bearing wheel and the second bearing wheel and the vertical direction of movement of the bottom plate and the second bearing wheel and the perpendicular side of the bottom plate take place the cam.

2. The multi-group cam welding strip cutting mechanism according to claim 1, wherein the fixed cutter holder is connected with a fixed cylinder, a guide rail is arranged below the fixed cutter holder, and the output direction of the fixed cylinder and the direction of the guide rail are parallel to the welding strip direction.

3. The multi-group cam welding strip cutting mechanism of claim 1, wherein a wire pressing part is arranged beside the wire passing cutter, the wire pressing part comprises an anti-falling wire cylinder, a floating wire pressing group, a wire pressing plate and a separation cylinder, the wire passing cutter is connected to the supporting plate in a sliding manner through a sliding rail structure, the sliding direction of the wire passing cutter is parallel to the direction of the welding strip, the separation cylinder is connected to the wire passing cutter, the anti-falling wire pressing cylinder is connected to the floating wire pressing group, a plurality of protrusions which are uniformly arranged and used for pressing the welding strip are arranged below the floating wire pressing group, and the wire pressing plate is matched with the protrusions of the floating wire pressing group.

4. The multiple set cam strap cutting mechanism of claim 1 wherein the support member comprises a mounting plate, a second base plate and a mounting block, the mounting plate being connected to the power member, the mounting block being connected to the spindle by a rolling bearing, the second base plate being fixedly secured to the mounting plate and the mounting block.

5. The multiple-unit cam strap cutting mechanism of claim 4 wherein the first base plate has two sides extending vertically with a plate body, the plate body being slidably coupled to the mounting block, the plate body and the second base plate being coupled by an elastic member.

6. The multi-group cam welding strip cutting mechanism according to claim 1, wherein the side surfaces of the movable tool apron are respectively provided with a limiting mechanism, the reset mechanism is in close contact with the movable tool apron, and an elastic element for elastically pushing the movable tool apron is arranged in the reset mechanism.

7. The multiple cam die cutting mechanism of any one of claims 1 to 6, wherein the bump is arcuate and the bump and the thumb wheel are arcuate transitions.

8. The multiple set cam weld tape cutting mechanism of any one of claims 1 to 6, wherein the transmission member comprises a coupling that connects the power member and the spindle.