CN114453643A

CN114453643A - Cutting mechanism for multi-group cam welding strip

Info

Publication number: CN114453643A
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: 2022-05-10
Anticipated expiration: 2042-02-28
Also published as: CN114453643B

Abstract

The invention discloses a cutting mechanism for a plurality of groups of cam welding strips, which relates to the technical field of photovoltaic automatic production equipment and comprises a cutter part, a power part, a supporting part and a transmission part, wherein the cutter part comprises a fixed cutter holder, remove the blade holder and cross the line sword, the both sides of fixed blade holder and removal blade holder all are equipped with cut-off knife and the inseparable laminating of cut-off knife, the cut-off knife with cross all be equipped with a plurality of recesses that are used for holding the welding strip that evenly distributed on the line sword, the contact position of the cut-off knife of fixed blade holder and removal blade holder, the contact position of the cut-off knife of line sword and removal blade holder is the edge of a knife, transmission part 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, it has the pendulum rod to remove blade holder below rigid coupling, the pendulum rod be equipped with the first driving wheel of thumb wheel complex, the moving direction that removes 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 unit is connected with the main shaft. The invention can improve the efficiency of cutting the welding strip without increasing the wire pulling speed.

Description

Cutting mechanism for multi-group cam welding strip

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 where the human beings rely on to live, and the human beings need to accelerate to form a green development mode and a life mode, build an ecological civilization and beautiful earth and deal with climate change. The sustainable green energy is urgently developed, clean energy represented by wind power, photoelectricity and hydropower becomes the main force of energy conservation and emission reduction, particularly, the photoelectricity is the main force, the technical route is relatively simple, the advantages of being free from regional limitation and wide in application are widely accepted by various industries, and therefore the photovoltaic industry is also confronted with the vigorous development, and a plurality of technologies are subversively changed. In the wave photovoltaic leather, TOPCON cells and heterojunction cells (HJT) become wind vanes for the development of the photovoltaic industry due to the characteristics of higher efficient cell conversion efficiency and low attenuation, and compared with conventional cells, although the TOPCON cells and the heterojunction cells (HJT) have outstanding advantages, the manufacturing cost of the cells is relatively higher and becomes the main resistance of the development, so that the manufacturing cost of the cells is important for adapting to the rapid development needs of the photovoltaic industry, the slurry accounts for about 24% in the manufacturing cost of the cells and is inferior to silicon wafers, the consumption of silver paste of the cells is important in the process of reducing the cost, and as the number of main grids of the cells is more and more, the consumption of the silver paste can be reduced by requiring the printing of the main grids of the cells to be thinner. The finished product of the photovoltaic module firstly needs to serially connect the positive and negative electrodes of a plurality of battery pieces into a string by using a welding strip, then serially connects the positive and negative electrodes of a plurality of battery strings into a module, and then packages the module to form the finished product module on the market. The photovoltaic series welding machine is a device for connecting the positive electrode and the negative electrode of a battery piece in series, a photovoltaic welding strip is thinner and thinner along with the fact that the main grid of the battery piece is thinner and thinner, the diameter of the photovoltaic welding strip is about 0.30mm at present, the precision of the device is higher and higher, the device needs to accurately place the welding strip at a fixed point, the battery piece is placed above the welding strip through vision, the required deviation of the central overlapping degree of the welding strip and the main grid of the battery piece cannot exceed 0.05mm, otherwise, the welding strip and the battery piece are easily subjected to false welding, the yield of the battery string is too low, and the photovoltaic series welding machine is not suitable for mass production.

Traditional solder strip cuts mechanism and generally opens and shuts great, extremely unfriendly to operating personnel, cuts the action stroke long, and is inefficient, can only carry out cutting of single-end solder strip moreover, and obviously the productivity is restricted by the solder strip quantity that cuts, wants the beat of improve equipment, firstly improves the speed of acting as go-between of link mechanism, and the speed of very obviously acting as go-between mechanism has been restricted by the speed of module, is difficult to improve again, secondly just cuts through when adopting multiunit solder strip and improves the productivity. But the structure of cutting equipment has provided new requirement when multiunit solder strip, need the solder strip to cut and level and more easily with the solder strip tool setting that cuts the mechanism during welding, the cutting edge needs very convenient with the counterpoint of solder strip to need compromise the security that cuts the mechanism.

Disclosure of Invention

1. Technical problem to be solved by the invention

Aiming at the technical problems of low cutting efficiency of the traditional welding strip and limitation of the wire pulling speed of the welded strip, the invention provides a multi-group cam welding strip cutting mechanism which improves the cutting efficiency of the welding strip without increasing the wire pulling speed.

2. Technical scheme

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

the multi-group cam welding strip cutting mechanism comprises a cutter component, a power component, a supporting component and a transmission component, wherein the cutter component comprises a fixed cutter holder, a movable cutter holder and a wire passing cutter, the two sides of the fixed cutter holder and the two sides of the movable cutter holder are both provided with the cutters, the cutters are tightly attached to each other, the cutters and the wire passing cutter are provided with a plurality of uniformly distributed grooves for accommodating welding strips, the contact positions of the fixed cutter holder and the cutters of the movable cutter holder and the contact positions of the wire passing cutter and the cutters of the movable cutter holder are cutter edges, the transmission component comprises a main shaft, a shifting wheel is arranged on the main shaft, salient points are arranged on the circumference of the shifting wheel, a swing rod is fixedly connected below the movable cutter holder, the swing rod is provided with a first bearing wheel matched with the shifting wheel, the moving direction of the movable cutter holder is vertical to the direction of the welding strips, and a reset mechanism is arranged on the side surface of the movable cutter holder, the power component is connected with the main shaft.

Optionally, the fixed tool apron is connected with a fixed cylinder, a guide rail is arranged below the fixed tool apron, and the output direction of the fixed cylinder and the direction of the guide rail are parallel to the direction of the welding strip.

Optionally, a line pressing component is arranged beside the line passing knife and comprises an anti-drop line cylinder, a floating pressure line group, a line pressing plate and a separating cylinder, the line passing knife is connected to the supporting plate in a sliding mode through a sliding rail structure, the sliding direction of the line passing knife is parallel to the direction of the welding strip, the separating cylinder is connected to the line passing knife, the anti-drop line cylinder is connected to the floating pressure line group, a plurality of uniformly arranged bulges used for pressing the welding strip downwards are arranged below the floating pressure line group, and the line pressing plate is matched with the bulges of the floating pressure line group.

Optionally, a cam is arranged on the main shaft, the cam is in matched contact with a second bearing wheel, the second bearing wheel is fixedly connected to the first base plate, a sliding rail structure is arranged on the first base plate and connected to the movable cutter holder and the fixed cutter holder, and the cam drives the second bearing wheel to move vertically up and down.

Optionally, the maximum eccentric distance point of the cam on the spindle and the contact time of the second bearing wheel occur simultaneously with the contact time of the salient point of the thumb wheel and the first bearing wheel.

Optionally, the support member includes a mounting plate, a second base plate and a mounting block, the mounting plate is connected to the power unit, the mounting block is connected to the spindle through a rolling bearing, and the second base plate is fixedly connected to the mounting plate and the mounting block.

Optionally, plate bodies vertically extend from two sides of the first bottom plate, the plate bodies are slidably connected to the mounting block, and the plate bodies are connected to the second bottom plate through elastic members.

Optionally, 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 used for elastically pushing the movable tool apron is arranged in the reset mechanism.

Optionally, the salient point is arc-shaped, and the salient point and the thumb wheel are in arc-shaped transition.

Optionally, the transmission component includes a coupling, and the coupling connects the power component and the main shaft.

3. Advantageous effects

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

according to the technical scheme, the mode of cutting a plurality of grooves and groups of welding strips is adopted, the efficiency of cutting the welding strips is improved under the condition that the wire pulling speed is not required to be improved, the matching structure of the fixed cutter holder and the movable cutter holder is arranged, the movable cutter holder is shifted by the dial wheel to quickly cut the welding strips, and the beat and the efficiency of cutting the welding strips are ensured; furthermore, a fixed cylinder is arranged at the fixed cutter holder and used for propping against the fixed cutter holder, so that the fixed cutter holder is tightly attached to the movable cutter holder, and the smoothness of the cut of the welding strip is improved; furthermore, a wire pressing component for pressing the welding strip downwards is arranged to prevent the welding strip from being dislocated; furthermore, a cam structure is arranged for adjusting the heights of the fixed cutter holder and the movable cutter holder 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 cutting mechanism for multiple groups of cam welding strips according to an embodiment of the present invention.

Fig. 3 is a cross-sectional view of a cutting mechanism for multiple groups of cam welding strips according to an embodiment of the present invention.

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

Fig. 5 is an axial schematic view of the cam direction of the multiple-group cam welding strip cutting mechanism according to the embodiment of the present invention.

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

Fig. 7 is a schematic structural diagram of the angles of the thumb wheels of the multiple-group cam welding strip cutting mechanism according to the embodiment of the present invention.

Fig. 8 is a schematic structural diagram of a soldering flux supply 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 pressure line group; 3. a wire pressing plate; 4. separating the cylinder; 5. a cylinder connecting plate; 6. a floating joint; 7. a support plate; 8. a wire passing knife; 9. a first movable 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. fixing the air cylinder; 16. a second follower wheel; 17. a first base plate; 18. A rolling bearing; 19. a coupling; 20. mounting a plate; 21. a servo motor; 22. a key; 23. a main shaft; 24. a second base plate; 25. mounting blocks; 26. a return spring assembly; 27. a cam; 28. a swing rod; 29. a first follower 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. line concentration chain.

Detailed Description

For a further understanding of the present invention, reference will now be made in detail to the embodiments illustrated in the drawings.

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings. The terms first, second, and the like in the present invention are provided for convenience of describing the technical solution of the present invention, and have no specific limiting effect, but are all generic terms, and do not limit the technical solution of the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular 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 expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. The technical solutions in the same embodiment and the technical solutions in different embodiments can be arranged and combined to form a new technical solution without contradiction or conflict, and the technical solutions are within the scope of the present invention.

Example 1

With reference to fig. 1-8, the cutting mechanism for multiple groups of cam welding strips comprises a cutter component, a power component, a supporting component and a transmission component, wherein the cutter component comprises a fixed cutter holder 14, a movable cutter holder 11 and a line-passing cutter 8, both sides of the fixed cutter holder 14 and the movable cutter holder 11 are provided with cutters, the cutters are tightly attached to the line-passing cutter 8, the cutters and the line-passing cutter 8 are provided with a plurality of grooves which are uniformly distributed and used for accommodating welding strips, the contact positions of the fixed cutter holder 14 and the cutters of the movable cutter holder 11 and the contact positions of the line-passing cutter 8 and the cutters of the movable cutter holder 11 are knife edges, the transmission component comprises a main shaft 23, a shifting wheel 30 is arranged on the main shaft 23, salient points are arranged on the circumference of the shifting wheel 30, a swing rod 28 is fixedly connected below the movable cutter holder 11, the swing rod 28 is provided with a first bearing wheel 29 matched with the shifting wheel 30, the moving direction of the movable tool apron 11 is perpendicular to the direction of the welding strip, a reset mechanism 32 is arranged on the side surface of the movable tool apron 11, and the power component is connected with the main shaft 23.

As shown in fig. 8, the multiple-group cam solder strip cutting mechanism 33 is one mechanism in the solder strip production apparatus, and associated therewith, there are a wire pulling mechanism 34 and a flux supplying mechanism 35, the wire pulling mechanism 34 is located at the end of the fixed tool apron 14, the flux supplying mechanism 35 is located at the end of the wire passing tool 8, and the direction in which the solder strip passes through is: the soldering flux feeding mechanism 35, the multiple groups of cam solder strip cutting mechanisms 33 and the wire drawing mechanism 34, wherein the soldering flux is stored in the soldering flux feeding mechanism 35, and when the solder strips pass through the soldering flux feeding mechanism 35, the soldering flux is coated on the surfaces of the solder strips, and then the solder strips reach the multiple groups of cam solder strip cutting mechanisms 33. The scaling powder supply mechanism 35, the multiple groups of cam welding strip cutting mechanisms 33 and the wire drawing mechanism 34 are all connected to a support, the support is connected with a servo module 36 and a slide rail, the wire drawing mechanism 34 is connected to the slide rail, and the movement of the wire drawing mechanism 34 is controlled by the servo module 36. Be equipped with a plurality of small-size cylinders on wire drawing mechanism 34, the output of small-size cylinder articulates there is swing lever structure, and the other end cooperation of swing lever structure is provided with the clamping jaw that is used for pressing from both sides to get the welding area, and is same, and the clamping jaw matches with the number of small-size cylinder, and the while welds the number that the cut-off knife of taking cutting mechanism 33 and cross the recess of line sword 8 with the multiunit cam and is the same. The guide rail below the moving blade holder 11 is a cutting guide rail 10. The fixed blade seat 14 and the movable blade seat 11 support the cutting blade, the cutting blade on the fixed blade seat 14 is a fixed cutting blade, the cutting blade on the movable blade seat 11 is a movable cutting blade, and as shown in fig. 1-3, the movable cutting blade is divided into a first movable cutting blade 9 and a second movable cutting blade 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 the welding strip can be cut when the movable cutter holder 11 moves along the direction perpendicular to the welding strip. The groove is slender, and the welding strip can be well positioned in the groove. The main shaft 23 is used for transmission, the thumb wheel 30 is matched with the first bearing wheel 29, the thumb wheel 30 is provided with a convex point, after the main shaft 23 drives the thumb wheel 30 to rotate, the convex point collides with the first bearing wheel 29 to enable the first bearing wheel 29 to move, the first bearing wheel 29 is fixedly connected to the movable tool apron 11, and therefore the movable tool apron 11 moves and cuts a welding strip simultaneously. When the protruding point collides with the first bearing wheel 29, the reset mechanism 32 controls the moving tool holder 11 to reset, so that the thumb wheel 30 is continuously attached to the first bearing wheel 29. The thumb wheel 30 is tightly connected with the main shaft 23 through a key 22, and the key 22 is used for circumferential limit. In this embodiment, the power components are connected to a controller for synchronously controlling the operation processes of the wire drawing mechanism 34, the multiple groups of cam solder strip cutting mechanisms 33 and the soldering flux supply mechanism 35. The power component is a servo motor 21. As shown in fig. 8, a line collecting chain 37 is arranged below the bracket to arrange the pipeline lines, so as to prevent the line pulling mechanism 34 from moving to break the lines, and to collect the lines orderly and neatly, so as to prevent the pipeline lines from being placed randomly.

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 direction of the welding strip. The fixed cutter holder 14 is provided with a fixed air cylinder 15 for propping against 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 cutting opening of the welding strip is improved. The output end of the fixed cylinder 15 is connected with the fixed tool apron 14 through a locking pin 13.

The other line pressing part that is equipped with of line sword 8 crosses, line pressing part includes anticreep line cylinder 1, floating dynamic pressure group 2, line ball board 3 and separation cylinder 4, cross line sword 8 through slide rail structure sliding connection in backup pad 7, the slip direction of crossing line sword 8 is parallel with the solder strip direction, separation cylinder 4 connect in cross line sword 8, anticreep line cylinder 1 connect in floating dynamic pressure group 2, the below of floating dynamic pressure group 2 is equipped with a plurality of align to grid's the arch that is used for down the pressure welding area, line ball board 3 with the protruding cooperation of floating dynamic pressure group 2 prevents to weld the area dislocation. The separation cylinder 4 is used for retreating the wire passing cutter 8 for a certain distance after the welding strip is cut, so that the situation that the smoothness of the cut is influenced by friction or collision generated after the cut of the welding strip is reset is avoided. The separating cylinder 4 is connected with the wire pressing plate 3 through a cylinder connecting plate 5 and a floating joint 6.

Be equipped with cam 27 on the main shaft 23, cam 27 cooperation contact has second to hold driving wheel 16, second holds driving wheel 16 rigid coupling in first bottom plate 17, be equipped with slide rail structure on first bottom plate 17 and connect in remove blade holder 11 with fixed blade holder 14, cam 27 drives the direction that second held driving wheel 16 moved is vertical from top to bottom, adjusts the height of fixed blade holder 14 and removal blade holder 11, lets out the space when coming for placing the welding strip, avoids interfering. The maximum eccentric distance point of the cam 27 on the main shaft 23 and the contact timing of the second follower 16 occur simultaneously with the contact timing of the salient point of the thumb wheel 30 and the first follower 29. In order to ensure the efficiency of cutting the welding strip, improve the degree of overall automation, shorten the time of cutting the beat, the power component moves all the time, main shaft 23 rotates all the time, cuts the welding strip when fixed blade holder 14 and movable blade holder 11 rise to the highest position, the salient point of thumb wheel 30 contacts with first bearing wheel 29 at this moment, and movable blade holder 11 moves along the direction perpendicular to the welding strip and cuts the welding strip. The main shaft 23 rotates all the time, the welding strip can be completely pulled and cut, 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, the mounting plate 20 is connected to the power component, the mounting block 25 is connected to the main shaft 23 through a rolling bearing 18, and the second bottom plate 24 is fixedly connected to the mounting plate 20 and the mounting block 25. The mounting plate 20, the second base plate 24 and the mounting block 25 all serve a supporting function.

The two sides of the first bottom plate 17 are vertically extended with plate bodies, the plate bodies are connected with the mounting block 25 in a sliding manner, and the plate bodies are connected with the second bottom plate 24 through elastic pieces. The elastic member is used to help the first bottom plate 17 to 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 knife holder 11 are respectively provided with a limiting mechanism 31, the reset mechanism 32 is in close contact with the movable knife holder 11, and an elastic element for elastically pushing the movable knife holder 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 bearing wheel 29, the elastic element is pressed by the movable tool apron 11 to generate an elastic force, after the collision, the salient point rotates through the first bearing wheel 29, the elastic element retracts the movable tool apron 11 to the original position, and at this time, the circular side surface of the thumb wheel 30 is attached to the first bearing wheel 29. The limiting mechanism 31 and the reset mechanism 32 are respectively located on two sides of the movable knife holder 11, as shown in fig. 6-7, the limiting mechanism 31 is a limiting screw, and it is ensured that the movable knife holder 11 does not fly out on the left side. Including the elastic piece, elastic reset mechanism 32 has the advantages of fast rebound reset speed, sensitivity and lower cost.

The salient points are arc-shaped, and the salient points and the thumb wheel 30 are in arc-shaped transition. Arc and arc transition are softer for the shape collision that has the edges and corners, have certain buffering, can not produce very big impact, have reduced the damage probability of mechanism to the noise has effectively been reduced.

The transmission part comprises a coupler 19, the coupler 19 is connected with the power part and the main shaft 23, the disassembly and the assembly are convenient, the transmission part can be adapted to different power parts and main shafts 23, and the application range is widened.

The working principle is as follows:

the welding strip enters a plurality of groups of cam welding strip cutting mechanisms 33 after being coated with the soldering flux by a soldering flux supply mechanism 35, the head of the welding strip is exposed, the welding strip is tightly pulled out by a wire pulling mechanism 34, a servo motor 21 is started, a main shaft 23 rotates, the welding strip is placed and pulled when a first bottom plate 17 is lowered to a low position by a cam 27, when the cam 27 pushes the first bottom plate 17 to a highest position, a salient point of a shifting wheel 30 collides with a first bearing wheel 29, a movable tool apron 11 transversely moves to cut the welding strip, a wire passing knife 8 is retreated by a separating cylinder 4 after cutting, the situation that the smoothness of a cut is influenced by friction or collision 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 to finish cutting.

The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.

Claims

1. The multi-group cam welding strip cutting mechanism is characterized by comprising a cutter part, a power part, a supporting part and a transmission part, wherein the cutter part comprises a fixed cutter holder, a movable cutter holder and a wire passing cutter, the two sides of the fixed cutter holder and the two sides of the movable cutter holder are respectively provided with the cutter and the cutter are tightly attached, the cutter and the wire passing cutter are respectively provided with a plurality of uniformly distributed grooves for accommodating welding strips, the contact positions of the cutter of the fixed cutter holder and the movable cutter holder and the contact positions of the wire passing cutter and the cutter of the movable cutter holder are cutter edges, the transmission part comprises a main shaft, a shifting wheel is arranged on the main shaft, salient points are arranged on the circumference of the shifting wheel, a swing rod is fixedly connected below the movable cutter holder and is provided with a first bearing wheel matched with the shifting wheel, and the moving direction of the movable cutter holder is vertical to the direction of the welding strips, and a reset mechanism is arranged on the side surface of the movable cutter holder, and the power part is connected with the main shaft.

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

3. The multi-group cam welding strip cutting mechanism according to claim 1, wherein a strip pressing component is arranged beside the strip passing knife, the strip pressing component comprises a strip falling prevention cylinder, a floating pressure strip group, a strip pressing plate and a separation cylinder, the strip passing knife is slidably connected to the supporting plate through a sliding rail structure, the sliding direction of the strip passing knife is parallel to the direction of the welding strip, the separation cylinder is connected to the strip passing knife, the strip falling prevention cylinder is connected to the floating pressure strip group, a plurality of uniformly arranged bulges used for pressing the welding strip downwards are arranged below the floating pressure strip group, and the strip pressing plate is matched with the bulges of the floating pressure strip group.

4. The cutting mechanism for multiple sets of cam welding belts as claimed in claim 1, wherein the main shaft is provided with a cam, the cam is in contact with a second driving wheel, the second driving wheel is fixedly connected to the first bottom plate, the first bottom plate is provided with a sliding rail structure and is connected to the movable tool apron and the fixed tool apron, and the direction of the cam driving the second driving wheel is vertical.

5. The multi-group cam welding belt cutting mechanism according to claim 4, wherein the eccentric distance maximum point of the cam on the main shaft and the contact time of the second bearing wheel occur simultaneously with the contact time of the salient point of the thumb wheel and the first bearing wheel.

6. The multi-group cam welding strip cutting mechanism according to claim 4, wherein the supporting component comprises a mounting plate, a second bottom plate and a mounting block, the mounting plate is connected to the power component, the mounting block is connected to the main shaft through a rolling bearing, and the second bottom plate is fixedly connected to the mounting plate and the mounting block.

7. The cutting mechanism for multiple cam welding belts as claimed in claim 6, wherein two sides of the first base plate are extended vertically with plate bodies, the plate bodies are slidably connected with the mounting block, and the plate bodies are connected with the second base plate through elastic members.

8. The cutting mechanism for multiple sets of cam welding strips as claimed in 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.

9. The multi-group cam welding strip cutting mechanism according to any one of claims 1 to 8, wherein the protruding points are arc-shaped, and the protruding points and the thumb wheel are in arc-shaped transition.

10. The multiple-unit cam weld string cutting mechanism according to any one of claims 1 to 8, wherein the transmission member includes a coupling connecting a power member and the main shaft.