A solder strip cutting apparatus and a solder strip cutting method

Abstract

The present application relates to photovoltaic module preparation technical field, disclose a kind of solder strip cutting equipment and solder strip cutting method.The solder strip cutting equipment includes belt feeding device, belt pulling device and cutting device;Belt feeding device includes two solder strip positioning mechanisms, two solder strip positioning mechanisms can move along the first direction, solder strip positioning mechanism includes positioning drive source, clamping part and several transmission force increasing units connected with lever principle, positioning drive source drives clamping part to move through transmission force increasing unit, to make solder strip positioning mechanism switch between the first state of making the solder strip to be cut through and the second state of fixing the solder strip to be cut;Belt pulling device is configured to clamp the solder strip to be cut and pull it out from solder strip positioning mechanism;Cutting device is configured to cut the solder strip to be cut fixed between belt feeding device and belt pulling device.The solder strip cutting equipment can realize the automatic cutting of solder strip group, the cutting efficiency is higher, and the conveying process is stable.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic module manufacturing technology, and in particular to a solder strip cutting device and a solder strip cutting method. Background Technology

[0002] With the increasing scarcity of fossil fuels, solar energy, as a clean, pollution-free, and inexhaustible new energy source, is gradually becoming a guarantee for human future development. The current photovoltaic market is typically dominated by crystalline silicon solar cell modules, which have advantages such as abundant raw materials, high conversion efficiency, high reliability, simple structure, and long lifespan. In the manufacturing process of photovoltaic modules, solar silicon cells are connected in pairs using solder ribbons to form cell strings of a certain scale. The main function of the solder ribbons is to connect multiple solar silicon cells into a battery pack, thereby generating a certain voltage and current output to realize the energy conversion and storage of the solar panels; in addition, the solder ribbons also serve a heat dissipation function.

[0003] Photovoltaic module production lines typically include ribbon cutting equipment. This equipment cuts the ribbon according to the specifications of the solar cells, supplying ribbon bundles of the corresponding lengths to the cell assembly station. However, in existing technologies, ribbon cutting equipment generally suffers from low cutting efficiency and unstable conveying.

[0004] Furthermore, the feeding device of a welding strip cutting machine typically needs to switch between a first state of pressing the welding strip and a second state of releasing the welding strip to allow it to pass through. To achieve this switching effect, the feeding device usually includes a cylinder and multiple clamping parts connected to the output end of the cylinder. The cylinder drives the multiple clamping parts to press or release the corresponding welding strip. However, using a single cylinder to drive multiple clamping parts simultaneously causes the output force of the cylinder to be evenly distributed among the clamping parts, resulting in a smaller pressing force from each individual clamping part and poor fixation of the welding strip.

[0005] Therefore, there is an urgent need to develop a welding strip cutting device to solve the above problems. Summary of the Invention

[0006] Based on the above, the purpose of this invention is to provide a welding strip cutting device and a welding strip cutting method, which can realize the automated cutting of welding strip groups, with high cutting efficiency and stable conveying process.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A welding strip cutting device, comprising a strip feeding device, a strip pulling device, and a cutting device, wherein the strip feeding device and the strip pulling device are respectively located on both sides of the cutting device;

[0009] The tape feeding device includes two tape positioning mechanisms, which are spaced apart along a first direction and can move along the first direction. Each tape positioning mechanism includes a positioning drive source, a clamping part, and several transmission amplification units interconnected by lever principle. The positioning drive source drives the clamping part to move through the transmission amplification units, so that the tape positioning mechanism switches between a first state in which the tape to be cut passes through and a second state in which the tape to be cut is fixed. The transmission amplification units are configured to increase the output force of the clamping part from the positioning drive source to achieve tape clamping.

[0010] The strip pulling device is configured to clamp the welding strip to be cut and pull it out from the welding strip positioning mechanism;

[0011] The cutting device is configured to cut the welding strip to be cut, which is fixed between the feeding device and the pulling device.

[0012] As a preferred embodiment of the welding strip cutting equipment provided by the present invention, the welding strip positioning mechanism includes:

[0013] Base;

[0014] A support groove frame is disposed on the base. The support groove frame is provided with a plurality of positioning grooves arranged at intervals along its length for the welding strip to be cut to pass through. Each positioning groove includes a first groove wall and a second groove wall opposite to each other. An avoidance space is provided on the first groove wall.

[0015] The pressure plate assembly includes multiple pressure plates movably disposed within the bearing groove frame. Each of the multiple pressure plates corresponds one-to-one with a multiple of the positioning grooves. When the welding strip positioning mechanism is in a first state, each pressure plate is located within the corresponding clearance space. When the welding strip positioning mechanism is in a second state, each pressure plate can press the corresponding welding strip to be cut onto the second groove wall. The end of each pressure plate forms the clamping part.

[0016] As a preferred embodiment of the welding strip cutting equipment provided by the present invention, the transmission force amplification unit is a force amplification link. Each of the force amplification links includes a force-bearing end, a connecting end, and a hinge end. The hinge ends are all hinged to the base. The force-bearing end of one of the two transmission force amplification units located at both ends is hinged to the output end of the positioning drive source, and the connecting end of the other is connected to the pressure plate assembly in a transmission manner.

[0017] The connecting end of the transmission power amplification unit located near the positioning drive source in two adjacent transmission power amplification units is hinged to the force-receiving end of the other transmission power amplification unit.

[0018] As a preferred embodiment of the welding strip cutting equipment provided by the present invention, a welding strip extension plate is further provided between the welding strip positioning mechanism located near the cutting device and the cutting device. The welding strip extension plate is provided with a plurality of guide grooves that correspond one-to-one with the positioning grooves on the bearing groove frame of the welding strip positioning mechanism, and a plurality of welding strips to be cut can pass through the corresponding guide grooves.

[0019] As a preferred embodiment of the welding strip cutting equipment provided by the present invention, the strip pulling device includes:

[0020] Mounting rack;

[0021] The clamping mechanism includes an upper mounting plate and a lower mounting plate that are slidably disposed on the mounting frame. The bottom of the upper mounting plate is provided with a plurality of upper clamping members that are spaced apart along its length. The lower mounting plate is provided with a plurality of lower clamping members that correspond one-to-one with the upper clamping members. A clamping space is formed between the corresponding upper clamping members and the lower clamping members.

[0022] The clamping drive mechanism is configured to simultaneously drive the upper mounting plate and the lower mounting plate to slide relative to the mounting bracket to adjust the width of the clamping space.

[0023] As a preferred embodiment of the welding strip cutting equipment provided by the present invention, the clamping drive mechanism includes a clamping drive source, a connecting rod assembly, and a return bar. The connecting rod assembly includes a first force application point and a second force application point, as well as a first output point and a second output point. The first force application point is located at the output end of the clamping drive source, and the second force application point is connected to the fixed end of the clamping drive source through the return bar. The first output point and the second output point are used to move closer to or further away from each other under the interaction of the first force application point and the second force application point. The first output point and the second output point are rotatably connected to the upper mounting plate and the lower mounting plate, respectively, and the sliding directions of the upper mounting plate and the lower mounting plate are parallel.

[0024] As a preferred embodiment of the welding strip cutting equipment provided by the present invention, the cutting device includes:

[0025] Cutting and fixing frame;

[0026] The cutting mechanism includes an upper cutter and a lower cutter that are spaced apart vertically on the cutting fixture, at least one of the upper cutter and the lower cutter being movable toward the other to cut the welding strip.

[0027] As a preferred embodiment of the welding strip cutting device provided by the present invention, the cutting fixing frame includes two spaced-apart base columns, one end of the upper cutting blade is hinged to one of the base columns, and the other end of the upper cutting blade is detachably connected to the other base column. When the upper cutting blade is in the cutting position, its cutting surface is higher than the position of the extended welding strip to be cut.

[0028] The lower cutter is disposed between the two base columns. The cutting mechanism also includes a cutting drive source. The output end of the cutting drive source is connected to the lower cutter to drive the lower cutter to move upward, thereby cutting the welding strip to be cut between the upper cutter and the lower cutter.

[0029] As a preferred embodiment of the welding strip cutting device provided by the present invention, the cutting drive source includes two cylinders stacked in a vertical direction, the output end of one cylinder is fixedly connected to the lower cutter and located at the output end of the other cylinder, and the output shafts of the two cylinders move in the same direction.

[0030] The present invention also provides a method for cutting solder strip, comprising the following steps:

[0031] Step S1: Two welding strip positioning mechanisms respectively clamp two fixed points of the welding strip to be cut at intervals along the length direction, and drive the welding strip to be cut close to the cutting device so that its end extends out of the cutting position of the cutting device. The welding strip positioning mechanism located on the side closer to the cutting device moves a preset distance more than the other welding strip positioning mechanism.

[0032] Step S2: The pulling device clamps one end of the welding strip to be cut that extends out of the cutting position of the cutting device, the two welding strip positioning mechanisms release the welding strip to be cut, the pulling device drives the welding strip to be cut to move a preset length, and at the same time the two welding strip positioning mechanisms reset.

[0033] Step S3: At least one welding strip positioning mechanism clamps the welding strip to be cut, and the cutting device cuts off the portion of the welding strip to be cut at the cutting position.

[0034] The beneficial effects of this invention are as follows:

[0035] The welding strip cutting equipment and method provided by this invention, through the cooperation of the feeding device, the pulling device, and the cutting device, can achieve automated cutting of welding strip and improve cutting efficiency. During welding strip cutting, both welding strip positioning mechanisms are initially in a clamping position to fix the welding strip. Then, both welding strip positioning mechanisms simultaneously approach the cutting device along a first direction. The welding strip positioning mechanism on the side closer to the cutting device moves a preset distance further than the other. After the welding strip is conveyed out of the cutting position of the cutting device, the pulling device clamps the welding strip extending beyond the cutting position. At this time, the two welding strip positioning mechanisms switch to a clearance position, and the pulling device moves the welding strip a preset length. Then, the cutting device cuts the welding strip. During this process, the two welding strip positioning mechanisms approach the cutting device asynchronously along the first direction, which shortens the working cycle and allows the welding strip to extend appropriately during straightening, thereby avoiding the problem of unstable material supply after cutting due to loose welding strip. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of the present invention and these drawings without creative effort.

[0037] Figure 1 This is a schematic diagram of the welding strip cutting equipment provided in an embodiment of the present invention from one perspective;

[0038] Figure 2 This is a schematic diagram of the welding strip cutting equipment provided in an embodiment of the present invention from another perspective;

[0039] Figure 3 This is a schematic diagram of the welding strip positioning mechanism provided in an embodiment of the present invention;

[0040] Figure 4 yes Figure 3 A magnified view of a portion at point A;

[0041] Figure 5 This is a schematic diagram of the welding strip positioning mechanism provided in an embodiment of the present invention, with the bearing groove frame hidden.

[0042] Figure 6 This is a partial structural schematic diagram of the welding strip positioning mechanism provided in an embodiment of the present invention;

[0043] Figure 7 yes Figure 1 A magnified view of the area at point B;

[0044] Figure 8 This is a schematic diagram of the structure of the strap pulling device provided in an embodiment of the present invention;

[0045] Figure 9 yes Figure 8 A magnified view of the area at point C;

[0046] Figure 10 This is a schematic diagram of the pull strap device provided in an embodiment of the present invention, omitting the upper mounting plate and the upper clamping member;

[0047] Figure 11 This is a top view of the pull belt device provided in an embodiment of the present invention;

[0048] Figure 12 yes Figure 11 A magnified view of the area at point D;

[0049] Figure 13 This is a schematic diagram of the structure of the traction plate displayed by the traction device provided in an embodiment of the present invention;

[0050] Figure 14 yes Figure 11 A magnified view of the area at point E;

[0051] Figure 15 yes Figure 2 A magnified view of a section at point F.

[0052] In the picture:

[0053] 100 - Belt feeding device; 200 - Belt pulling device; 300 - Cutting device;

[0054] 1-Welding strip positioning mechanism; 11-Base; 12-Bearing groove frame; 121-Positioning groove; 122-Allowing space; 13-Pressure plate assembly; 131-Pressure plate; 132-Connecting plate; 14-Positioning drive assembly; 141-Positioning drive source; 1411-Cylinder; 1412-Connecting seat; 1413-Elastic element; 142-Transmission force amplification unit; 1421-Force-bearing end; 1422-Hinged end; 1423-Connecting end; 15-First sliding assembly; 151-First guide slide rail; 152-First guide slider; 16-Limiting ring; 17-Welding strip extension guide plate; 171-Guide groove;

[0055] 2- Belt feeding drive mechanism;

[0056] 3-Mounting bracket; 31-Second sliding assembly; 311-Second guide rail; 312-Second guide slider; 32-Third sliding assembly; 33-Allowing groove; 34-Sliding mounting base;

[0057] 4-Clamping mechanism; 41-Upper mounting plate; 42-Lower mounting plate; 43-Upper clamping component; 44-Lower clamping component; 45-Traction plate; 451-Traction hole;

[0058] 5-Clamping drive mechanism; 51-Clamping drive source; 52-Push block; 53-Linkage assembly; 531-First force application point; 532-Second force application point; 533-First output point; 534-Second output point; 54-Return bar; 541-Horizontal arm; 542-Vertical arm;

[0059] 6-Belt drive mechanism;

[0060] 7-Cutting and fixing bracket;

[0061] 8-Cutting mechanism; 81-Upper cutter; 82-Lower cutter; 83-Cutting drive source. Detailed Implementation

[0062] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0063] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0064] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0065] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0066] Figure 1 The diagram shows a schematic view of the welding strip cutting equipment provided in this embodiment from one perspective. Figure 2 A schematic diagram of the welding strip cutting equipment provided in this embodiment is shown from another perspective. For example... Figures 1-2 As shown, this embodiment provides a welding strip cutting device, which includes a feeding device 100, a pulling device 200, and a cutting device 300. The feeding device 100 and the pulling device 200 are located on both sides of the cutting device 300. The feeding device 100 includes two welding strip positioning mechanisms 1, which are spaced apart along a first direction and can move along the first direction. Each welding strip positioning mechanism 1 has a first state for allowing the welding strip to be cut to pass through and a second state for fixing the welding strip to be cut. The pulling device 200 is configured to clamp the welding strip to be cut and pull it out from the welding strip positioning mechanism 1. The cutting device 300 is configured to cut the welding strip fixed between the feeding device 100 and the pulling device 200. In this embodiment, the first direction refers to the conveying direction of the welding strip to be cut.

[0067] The welding strip cutting equipment provided in this embodiment can achieve automated cutting of welding strips and improve cutting efficiency through the cooperation between the feeding device 100, the pulling device 200 and the cutting device 300. When cutting the welding strip, both welding strip positioning mechanisms 1 are initially in the second state to fix the welding strip. Then, both welding strip positioning mechanisms 1 simultaneously approach the cutting device 300 along the first direction. The welding strip positioning mechanism 1 located on the side closer to the cutting device 300 moves a preset distance more than the other welding strip positioning mechanism 1. After the welding strip is conveyed out of the cutting position of the cutting device 300, the belt pulling device 200 can clamp the welding strip that extends out of the cutting position of the cutting device 300. At this time, the two welding strip positioning mechanisms 1 switch to the first state, and the belt pulling device 200 drives the welding strip to move a preset length. Then, the cutting device 300 cuts the welding strip. During this process, the two welding strip positioning mechanisms 1 simultaneously and asynchronously approach the cutting device 300 along the first direction, which can shorten the working cycle and allow the welding strip to be appropriately extended to a certain length during the straightening process, thereby avoiding the problem of unstable material supply after the cutting of the back end due to the looseness of the welding strip.

[0068] It should be noted that in this embodiment, the preset distance is 5mm-10mm. Of course, in other embodiments, the operator can adjust the preset distance according to the ductility of the solder strip and actual processing requirements, which is not limited here. In addition, this embodiment does not limit the preset length, and its specific value can be adjusted according to the specifications of the solar cell.

[0069] To enable the two welding strip positioning mechanisms 1 to move simultaneously but asynchronously along the first direction, in this embodiment, the feeding device 100 further includes a feeding drive mechanism 2. Each welding strip positioning mechanism 1 corresponds to one feeding drive mechanism 2, allowing for individual operation of the welding strip positioning mechanism 1. In this embodiment, the feeding drive mechanism 2 is a lead screw moving module, which offers high transmission accuracy, smooth transmission, and a simple structure. The lead screw moving module is a commonly used drive mechanism in the prior art, and the specific structure of the feeding drive mechanism 2 will not be described in detail in this embodiment. Of course, in other embodiments, the feeding drive mechanism 2 can also be a linear motor, cylinder, electric cylinder, or other drive mechanism with linear drive function, which is not limited here.

[0070] Figure 3 A schematic diagram of the structure of the welding strip positioning mechanism 1 provided in this embodiment is shown. Figure 4 It shows Figure 3 A magnified view of a portion at point A. Figure 5 A schematic diagram of the welding strip positioning mechanism 1 provided in this embodiment, excluding the bearing groove frame 12, is shown. Figures 3-5 As shown, each welding strip positioning mechanism 1 includes a base 11, a bearing groove frame 12, and a pressure plate assembly 13. The bearing groove frame 12 is disposed on the base 11 and has a positioning groove 121 for the welding strip to be cut to pass through. The positioning groove 121 includes a first groove wall and a second groove wall facing each other. A clearance space 122 is provided on the first groove wall. The pressure plate assembly 13 includes a pressure plate 131 movably disposed within the bearing groove frame 12. The pressure plate 131 has a clearance position located within the clearance space 122 and a pressing position that is disengaged from the clearance space 122 to press the welding strip to be cut onto the second groove wall of the positioning groove 121. By switching the pressure plate 131 between the clearance position and the pressing position, the welding strip positioning mechanism 1 can be switched between a first state and a second state. Specifically, when the welding strip positioning mechanism 1 is in the first state, the pressure plate 131 is in the clearance position; when the welding strip positioning mechanism 1 is in the second state, the pressure plate 131 is in the pressing position. It should be noted that...

[0071] It should be noted that the welding strip is transferred through the positioning groove 121 on the bearing groove frame 12. The end of the pressure plate 131 forms a clamping part. When the pressure plate 131 is in the pressing position, the clamping part of the pressure plate 131 can press the welding strip tightly on the second groove wall of the positioning groove 121. That is to say, the welding strip's threading position is also the welding strip's pressing position. This design can ensure that the welding strip does not deform when it is pressed.

[0072] like Figure 5 and combined Figure 4 As shown, the support frame 12 has multiple positioning slots 121, which are spaced apart along the length of the support frame 12. Each positioning slot 121 corresponds to a clearance space 122 and a pressure plate 131, so as to simultaneously transport multiple welding strips to be cut, thereby improving cutting efficiency. In this embodiment, the length of the support frame 12 is perpendicular to the first direction.

[0073] To enable synchronous switching between the clearance position and the pressing position of multiple pressure plates 131, the pressure plate assembly 13 further includes a connecting plate 132, which is movably disposed within the bearing groove frame 12. Multiple pressure plates 131 are spaced apart along the length of the connecting plate 132. The welding strip positioning mechanism 1 further includes a positioning drive assembly 14, which drives the connecting plate 132 to move along its length, thereby enabling synchronous switching between the clearance position and the pressing position of the multiple pressure plates 131. The length direction of the connecting plate 132 is parallel to the length direction of the bearing groove frame 12.

[0074] In related technologies, the positioning drive component 14 is typically a cylinder. It is understandable that when a single cylinder drives multiple pressure plates 131 simultaneously, the driving force of the cylinder is distributed among the pressure plates 131, resulting in a smaller clamping force of each pressure plate 131 on the welding strip and poor clamping effect. To increase the clamping force of a single pressure plate 131 on the welding strip, a cylinder with stronger output force needs to be selected for driving. On the one hand, increasing the output force of the cylinder will increase its purchase cost; on the other hand, the reaction force experienced by the cylinder during operation will also increase. This necessitates the manufacture of a stronger frame for its installation, leading to increased cost of the entire welding strip cutting equipment and making operation inconvenient.

[0075] Figure 6 A partial structural schematic diagram of the welding strip positioning mechanism 1 provided in this embodiment is shown. For example... Figure 6 and combined Figure 4 and Figure 5As shown, to solve the above problems, in this embodiment, the positioning drive assembly 14 includes a positioning drive source 141 and several transmission amplification units 142 interconnected by lever principle. The positioning drive source 141 drives the pressure plate assembly 13 to move within the bearing groove frame 12 through the several transmission amplification units 142, thereby increasing the driving force on the pressure plate 131 and switching the pressure plate 131 between the avoidance position and the pressing position. By setting the transmission amplification units 142, the positioning drive source 141 only needs a small output force to apply a large force on the pressure plate 131, so that the multiple pressure plates 131 can stably hold the welding strip in the corresponding positioning groove 121. Therefore, the positioning drive source 141 can be a smaller cylinder, thereby reducing the purchase cost of the positioning drive source 141.

[0076] Specifically, the transmission force amplification unit 142 is a force amplification link. Each force amplification link includes a force-receiving end 1421, a connecting end 1423, and a hinge end 1422. The hinge ends 1422 are all hinged to the base 11. The force-receiving end 1421 of one of the two transmission force amplification units 142 located at both ends is hinged to the output end of the positioning drive source 141, and the connecting end 1423 of the other is connected to the pressure plate assembly 13. The connecting end 1423 of the transmission force amplification unit 142 located closer to the positioning drive source 141 in two adjacent transmission force amplification units 142 is hinged to the force-receiving end 1421 of the other transmission force amplification unit 142. It should be noted that the force-saving effect of the force-enhancing linkage is achieved by changing the magnitude of the input torque and the output torque. Therefore, in actual use, designers can adjust the distance between the force-bearing end 1421 and the connecting end 1423, as well as the distance between the hinge end 1422 and the connecting end 1423, according to the specifications of the selected positioning drive source 141, in order to achieve the best force-saving effect.

[0077] Optionally, in this embodiment, the positioning drive source 141 is a cylinder. Of course, in other embodiments, the positioning drive source 141 can also be an electric cylinder, a hydraulic cylinder, a linear motor, a motor with a lead screw and nut, or other drive sources with linear drive function.

[0078] Optionally, in this embodiment, the number of transmission force amplification units 142 is two. While achieving a better force amplification effect, the number of transmission force amplification units 142 is reduced, thereby simplifying the structure of the welding strip positioning mechanism 1 and reducing manufacturing costs. Of course, in other embodiments, the number of transmission force amplification units 142 can also be three, four, or even more. Designers can adjust the number of transmission force amplification units 142 according to the specifications of the positioning drive source 141 and the layout space of the positioning drive assembly 14, which is not limited here.

[0079] Continue as Figures 3-5As shown, the support frame 12 is a hollow cuboid structure. Multiple positioning grooves 121 are provided on the upper surface of the support frame 12. All positioning grooves 121 communicate with the hollow inner cavity of the support frame 12. The connecting plate 132 is movably disposed within the hollow inner cavity of the support frame 12. Optionally, the bottoms of the multiple positioning grooves 121 are all at the same horizontal level to ensure a stable supply height of the welding strip.

[0080] To ensure the stability of the connecting plate 132 during its movement relative to the supporting groove frame 12, in this embodiment, a first sliding assembly 15 is further provided between the bottom of the hollow inner cavity of the supporting groove frame 12 and the connecting plate 132. The first sliding assembly 15 includes a first guide rail 151 and a first guide slider 152 that slide in cooperation with each other. The first guide rail 151 is located at the bottom of the hollow inner cavity of the supporting groove frame 12, and the first guide slider 152 is located at the bottom of the connecting plate 132. By providing the first sliding assembly 15, guidance can be provided for the sliding of the connecting plate 132 relative to the supporting groove frame 12, and the smoothness of its sliding process can be ensured. Optionally, there are multiple first guide sliders 152, which are spaced apart along the length of the connecting plate 132 and all slide in cooperation with the first guide rail 151 to further ensure the stability of the sliding process of the connecting plate 132 relative to the supporting groove frame 12.

[0081] To ensure effective securing of the welding strip when the pressure plate 131 is in the clamping position, the holding part of the pressure plate 131 is made of steel plate with a thickness of 2mm to 3mm. This design allows the holding part of the pressure plate 131 to have a certain degree of elasticity, securing the welding strip using its own elasticity when the pressure plate 131 is in the clamping position. Furthermore, the elasticity of the pressure plate 131 can compensate for its own machining errors, ensuring that each pressure plate 131 in the clamping position can effectively secure the corresponding welding strip.

[0082] Optionally, the overall thickness of the pressure plate 131 gradually decreases from bottom to top. With this arrangement, the upper part of the pressure plate 131 is relatively thin, providing a certain degree of elasticity to effectively fix the corresponding welding strip; the lower part of the pressure plate 131 is relatively thick, which allows the pressure plate 131 to maintain a certain strength, preventing breakage at the connection between the pressure plate 131 and the connecting plate 132, thereby extending the service life of the pressure plate assembly 13.

[0083] To facilitate the processing of the pressure plate assembly 13, in this embodiment, the connecting plate 132 and the multiple pressure plates 131 are integrally formed, which can save the step of assembling multiple parts together and improve processing efficiency.

[0084] Continue as Figure 3As shown, the positioning drive source 141 is a dual-axis cylinder, which includes a cylinder body 1411, a connecting seat 1412, a piston, a first piston rod, a second piston rod, and an elastic element 1413. The cylinder body 1411 has a piston chamber. The connecting seat 1412 is connected to one side of the cylinder body 1411. The piston is slidably disposed within the piston chamber. The first piston rod and the second piston rod are respectively connected to both sides of the piston. The end of the first piston rod furthest from the piston extends out of the piston chamber from the side opposite to the connecting seat 1412, forming the output end of the positioning drive source 141. The end of the second piston rod furthest from the piston extends out of the piston chamber from the side closest to the connecting seat 1412. The two ends of the elastic element 1413 are respectively connected to the connecting seat 1412 and the second piston rod. By providing the elastic element 1413, the elastic force of the elastic element 1413 can act on the first piston rod through the second piston rod and the piston, thus preventing the cylinder from losing its driving force on the two piston rods after power failure, which would prevent the pressure plate 131 from applying effective clamping force to the corresponding welding strip. In this embodiment, the elastic element 1413 is a spring, which is readily available and can reduce material costs.

[0085] Figure 7 It shows Figure 1 A magnified view of point B. (See image below.) Figure 7 and combined Figure 3 As shown, a limiting ring 16 is provided on the outer sleeve of the support groove frame 12. The limiting ring 16 is used to limit the welding strip to be cut to the bottom of the positioning groove 121, thereby preventing the welding strip from falling out of the positioning groove 121 and ensuring that multiple welding strips have the same supply height. It can be understood that the limiting ring 16 can be made of elastic material to facilitate its fitting onto or removal from the support groove frame 12, and the limiting ring 16 can also achieve good limiting of the welding strip through its own elastic force.

[0086] In related technologies, the strip feeding device 200 typically includes multiple clamping mechanisms, each driven by a clamping cylinder to clamp or release the welding strip. After the strip feeding device 100 delivers the end of the welding strip from the cutting position of the cutting device 300, multiple clamping cylinders drive the corresponding clamping mechanisms to clamp the welding strip at the corresponding position and pull it out to a preset length. However, this design requires a large number of clamping cylinders, resulting in a complex structure and high operating costs. Using a single clamping cylinder to simultaneously drive multiple clamping mechanisms leads to a large output force from the clamping cylinder. This increases the cylinder's purchase cost and, more importantly, the output force exerted by the clamping cylinder on multiple clamping mechanisms during operation reacts back onto the clamping cylinder, requiring the mounting frame to bear a significant load. This necessitates higher requirements for the thickness and strength of the mounting frame, which is detrimental to reducing the manufacturing cost of the welding strip cutting equipment.

[0087] Figure 8 A schematic diagram of the structure of the belt pulling device 200 provided in this embodiment is shown. Figure 9 It shows Figure 8 A magnified view of a section at point C. Figure 10 This diagram shows a simplified view of the pull strap device 200 provided in this embodiment, omitting the upper mounting plate 41 and the upper clamping member 43. Figures 8-10 As shown, the welding strip pulling device 200 includes a mounting frame 3, a clamping mechanism 4, and a clamping drive mechanism 5. The clamping mechanism 4 includes an upper mounting plate 41 and a lower mounting plate 42, both slidably mounted on the mounting frame 3. The bottom of the upper mounting plate 41 has multiple upper clamping members 43 spaced apart along its length. The lower mounting plate 42 has multiple lower clamping members 44 corresponding to the upper clamping members 43, forming a clamping space between the corresponding upper clamping members 43 and lower clamping members 44. The clamping drive mechanism 5 is configured to simultaneously drive the upper mounting plate 41 and the lower mounting plate 42 to slide along the mounting frame 3, moving them closer or further apart to adjust the width of the clamping space. This allows for changes in the size of the clamping space formed between the upper clamping members 43 and the lower clamping members 44, thereby achieving the clamping and releasing of the welding strip. The length direction of the upper mounting plate 41 is perpendicular to a first direction, and the sliding direction of the upper mounting plate 41 relative to the mounting frame 3 and the sliding direction of the lower mounting plate 42 relative to the mounting frame 3 are parallel.

[0088] In this embodiment, the upper clamping member 43 is a first protrusion structure disposed at the bottom of the upper mounting plate 41 and extending downward, and the lower clamping member 44 is a second protrusion structure disposed on the lower mounting plate 42 and extending outward. The second protrusion structure can be inserted between two adjacent first protrusion structures. This design is simple and convenient to manufacture. Optionally, the upper mounting plate 41 and the upper clamping member 43 are integrally formed, and the lower mounting plate 42 and the lower clamping member 44 are integrally formed. This design can simplify the processing steps, save the assembly steps between multiple parts, and improve processing efficiency.

[0089] Optionally, a second sliding assembly 31 is further provided between the upper mounting plate 41 and the mounting bracket 3. The second sliding assembly 31 includes a second guide rail 311 and a second guide slider 312 that are slidably engaged. The second guide rail 311 is disposed on the mounting bracket 3, and the second guide slider 312 is disposed on the bottom of the upper mounting plate 41. By providing the second sliding assembly 31, guidance can be provided for the sliding of the upper mounting plate 41 relative to the mounting bracket 3, and the smoothness of its sliding process can be ensured. Optionally, there are multiple second guide sliders 312, which are spaced apart along the length direction of the upper mounting plate 41 and are all slidably engaged with the second guide rail 311 to further ensure the stability of the sliding process of the upper mounting plate 41 relative to the mounting bracket 3.

[0090] Optionally, a third sliding assembly 32 is further provided between the lower mounting plate 42 and the mounting bracket 3. The third sliding assembly 32 includes a third guide rail and a third guide slider that slide in cooperation with each other. The third guide rail is disposed on the mounting bracket 3, and the third guide slider is disposed on the top of the lower mounting plate 42. By providing the third sliding assembly 32, guidance can be provided for the sliding of the lower mounting plate 42 relative to the mounting bracket 3, and the smoothness of its sliding process can be ensured. Optionally, there are multiple third guide sliders, which are spaced apart along the length direction of the lower mounting plate 42 and all slide in cooperation with the third guide rail, so as to further ensure the stability of the sliding process of the lower mounting plate 42 relative to the mounting bracket 3.

[0091] Figure 11 A top view of the pull belt device 200 provided in this embodiment is shown. Figure 12 It shows Figure 11 A magnified view of a portion at point D. (See image below.) Figures 11-12 and combined Figure 10 As shown, the clamping drive mechanism 5 includes a clamping drive source 51, a linkage assembly 53, and a return bar 54. The linkage assembly 53 includes a first force application point 531 and a second force application point 532, as well as a first output point 533 and a second output point 534. The first force application point 531 is located at the output end of the clamping drive source 51. The second force application point 532 is connected to the fixed end of the clamping drive source 51 through the return bar 54. The first output point 533 and the second output point 534 are used to move closer to or further away from each other under the interaction of the first force application point 531 and the second force application point 532. The first output point 533 and the second output point 534 are rotatably connected to the upper mounting plate 41 and the lower mounting plate 42, respectively. When the clamping drive source 51 is activated, its output end applies a force to the first force application point 531, causing it to move closer to the second force application point 532. Simultaneously, the first force application point 531 also applies a reaction force to the fixed end of the clamping drive source 51. This reaction force is transmitted through the return bar 54 to the second force application point 532, effectively causing both the first and second force application points 531 and 532 to move closer to each other. This, in turn, causes the first output point 533 and the second output point 534 to move further away from each other, thereby adjusting the size of the clamping space formed by the upper clamping member 43 and the lower clamping member 44. Due to the function of the return bar 54 and the connecting rod assembly 53, the output force of the clamping drive source 51 is reduced while the clamping force on the welding strip is increased, thus reducing the strength requirements of the mounting bracket 3 and ensuring good clamping of the welding strip.

[0092] In this embodiment, the linkage assembly 53 includes four clamping links that are hinged end to end. The hinge points between two adjacent clamping links sequentially form a first force application point 531, a first force output point 533, a second force application point 532, and a second force output point 534. The structure is simple, easy to manufacture, and easy to adjust.

[0093] Optionally, the return bar 54 has a U-shaped structure, including a horizontal arm 541 and vertical arms 542 connected vertically to both ends of the horizontal arm 541. Both vertical arms 542 are connected to the fixed end of the clamping drive source 51, and the horizontal arm 541 is hinged to the second force application point 532. By setting the return bar 54 to a U-shaped structure, the stable transmission of the output force of the clamping drive source 51 can be ensured. Further, the clamping drive mechanism 5 also includes a push block 52, through which the clamping drive source 51 is connected to the first force application point 531. The push block 52 is slidably disposed between the two vertical arms 542.

[0094] Optionally, in this embodiment, the clamping drive source 51 is a clamping cylinder. Of course, in other embodiments, the clamping drive source 51 can also be a linear motor, electric cylinder, or other drive mechanism with linear drive function.

[0095] The mounting bracket 3 is provided with a clearance groove 33, in which the clamping drive source 51 is located. The mounting bracket 3 is also provided with a sliding mounting seat 34, in which both vertical arms 542 are slidably mounted. By providing the sliding mounting seat 34 and positioning the clamping drive mechanism 5 in the clearance groove 33 of the mounting bracket 3, the clamping drive source 51 will not exert any force on the mounting bracket 3 itself during operation, thereby reducing the design requirements of the mounting bracket 3 and saving processing costs. By providing the sliding mounting seat 34, the stability of the entire clamping drive mechanism 5 can be ensured, and the return bar 54 can stably transmit the output force of the clamping drive source 51.

[0096] Figure 13 A schematic diagram of the structure of the traction plate 45 of the strap device 200 provided in this embodiment is shown. Figure 14 It shows Figure 11 A magnified view of a section at point E. (See attached image.) Figures 13-14 As shown, a traction plate 45 is also connected to the outer side of the upper mounting plate 41. The traction plate 45 is provided with traction holes 451 that correspond one-to-one with the clamping space, so as to guide the welding strip sent out of the cutting position of the cutting device 300 by the feeding device 100, so that it accurately enters the clamping space formed between the upper clamping member 43 and the lower clamping member 44.

[0097] Optionally, the width of the traction hole 451 gradually increases in the direction away from the upper mounting plate 41. The welding strip can enter from the wider opening of the traction hole 451 and accurately enter the clamping space through the gradually narrowing traction channel of the traction hole 451. In this embodiment, the cross-sectional shape of the traction hole 451 is trapezoidal.

[0098] Continue as Figures 1-2 and combined Figure 8 As shown, the tape pulling device 200 also includes a tape pulling drive mechanism 6. The output end of the tape pulling drive mechanism 6 is connected to the mounting frame 3 to drive the welding tape held by the clamping mechanism 4 to move a preset length via the mounting frame 3. After the tape feeding device 100 sends the end of the welding tape out of the cutting position of the cutting device 300, the tape pulling drive mechanism 6 drives the clamping mechanism 4 and the clamping drive mechanism 5 to move towards the side closer to the cutting device 300 via the mounting frame 3, so that the welding tape exposed at the cutting position of the cutting device 300 extends through the traction hole 451 on the traction plate 45 into the clamping space formed between the upper clamping member 43 and the lower clamping member 44; then the clamping drive mechanism 5 drives the clamping mechanism 4 to clamp the welding tape; the tape pulling drive mechanism 6 then drives the welding tape held by the clamping mechanism 4 to move a preset length away from the cutting device 300 via the mounting frame 3.

[0099] Optionally, in this embodiment, the belt drive mechanism 6 is a linear motor. Of course, in other embodiments, the belt drive mechanism 6 can also be a cylinder, hydraulic cylinder, motor with lead screw and nut pair, or motor with gear and rack, etc., which are drive mechanisms with linear drive functions.

[0100] It should be noted that before the first cut of the welding strip, the operator needs to manually pull the welding strip from the feeding device 100, pass it through the cutting position of the cutting device 300, and ensure that the end of the welding strip extends through the traction hole 451 into the clamping space formed between the upper clamping member 43 and the lower clamping member 44. After each subsequent cut, the feeding device 100 can automatically feed the strip, and the pulling device 200 can automatically pull the strip.

[0101] Figure 15 It shows Figure 2 A magnified view of a portion at point F. (See image below.) Figure 15 and combined Figures 1-2 As shown, the cutting device 300 includes a cutting fixture 7 and a cutting mechanism 8. The cutting fixture 7 is located between the feeding device 100 and the pulling device 200. The cutting mechanism 8 includes an upper cutter 81 and a lower cutter 82 that are vertically spaced on the cutting fixture 7. At least one of the upper cutter 81 and the lower cutter 82 can move towards the other to cut the welding strip to be cut between the upper cutter 81 and the lower cutter 82. The cutting position of the cutting device 300 is the gap between the upper cutter 81 and the lower cutter 82.

[0102] It is understandable that after the welding strip is cut, the cut point may droop downwards. To prevent the cut point on the welding strip from colliding with the lower cutter 82 when the feeding device 100 feeds the strip, in this embodiment, the upper cutter 81 remains stationary while the lower cutter 82 moves upwards during the cutting of the welding strip. This design allows the lower cutter 82 to move downwards to a safe position after one cutting operation, enabling the welding strip to pass smoothly between the upper cutter 81 and the lower cutter 82. Of course, in other embodiments, it can also be configured that the upper cutter 81 moves downwards and the lower cutter 82 moves upwards during the cutting of the welding strip.

[0103] To achieve vertical movement of the lower cutter 82, the cutting mechanism 8 also includes a cutting drive source 83. The output end of the cutting drive source 83 is connected to the lower cutter 82 to drive the lower cutter 82 upwards towards the upper cutter 81, thereby achieving the cutting operation of the welding strip. In this embodiment, the cutting drive source 83 includes two cylinders stacked vertically. The output end of one cylinder is fixedly connected to the lower cutter 82 and located at the output end of the other cylinder. The output shafts of the two cylinders move in the same direction. During cutting, a faster cutting speed with a large stroke can be achieved by controlling the two cutting cylinders to move synchronously.

[0104] In this embodiment, the cutting and fixing frame 7 includes two spaced-apart base columns, with the two ends of the lower cutter 82 slidably mounted on the two base columns. For ease of maintenance of the cutting device 300, one end of the upper cutter 81 is hinged to one of the base columns, and the other end is detachably connected to the other base column. When the upper cutter 81 is in the cutting position, its cutting surface is higher than the extended weld strip to be cut. In this embodiment, the other end of the upper cutter 81 is fixed to the other base column by a retaining ring. When the cutting device 300 malfunctions, the retaining ring can be rotated off, and then the upper cutter 81 can be rotated and raised around its hinge point, which is simple, convenient, and quick.

[0105] Continue as Figure 15 As shown, to prevent the weld strip from drooping excessively downwards after being cut, thus preventing it from accurately passing through the gap between the upper cutter 81 and the lower cutter 82, a weld strip extension plate 17 is provided between the weld strip positioning mechanism 1 and the cutting device 300, located near the side of the cutting device 300. The weld strip extension plate 17 has multiple guide grooves 171 that correspond one-to-one with the positioning grooves 121 on the bearing frame 12 of the weld strip positioning mechanism 1. The weld strip extension plate 17 provides guidance for the feeding process of the feeding device 100, ensuring that multiple weld strips accurately enter their corresponding traction holes 451 after passing through the gap between the upper cutter 81 and the lower cutter 82.

[0106] This embodiment also provides a method for cutting solder strips, which includes the following steps:

[0107] Step S1: The two welding strip positioning mechanisms 1 respectively clamp two fixed points that are spaced apart along the length of the welding strip to be cut, and drive the welding strip to be cut close to the cutting device 300 so that its end extends out of the cutting position of the cutting device 300. The welding strip positioning mechanism 1 located on the side closer to the cutting device 300 moves a preset distance more than the other welding strip positioning mechanism 1.

[0108] Step S2: The two welding strip positioning mechanisms 1 release the welding strip to be cut, and the pulling device 200 clamps one end of the welding strip to be cut that extends out of the cutting position of the cutting device 300 and drives it to move a preset length.

[0109] Step S3: At least one welding strip positioning mechanism 1 clamps the welding strip to be cut, and the cutting device 300 cuts off the portion of the welding strip to be cut at the cutting position.

[0110] It should be noted that the welding strip cutting method provided in this embodiment can be implemented using the above-mentioned welding strip cutting equipment. In step S1, the feeding process of the two welding strip positioning mechanisms 1 approaching the cutting device 300 at different times can shorten the working cycle and allow the welding strip to be appropriately extended to a certain length during the straightening process, thereby avoiding the problem of unstable material supply after the rear cutting due to the looseness of the welding strip.

[0111] Furthermore, in step S1, after the two welding strip positioning mechanisms 1 move the welding strip to be cut to a preset position, the welding strip positioning mechanism 1 located near the cutting device 300 relaxes, while the other welding strip positioning mechanism 1 continues to move the welding strip to be cut until the end of the welding strip to be cut extends beyond the cutting position of the cutting device 300. This operation can prevent the welding strip positioning mechanism 1 located near the cutting device 300 from colliding with the welding strip extension plate 17 during the feeding process when the feeding length is too long. Of course, in other embodiments, the two welding strip positioning mechanisms 1 can also simultaneously clamp the welding strip to be cut and move it until the end of the welding strip to be cut extends beyond the cutting position of the cutting device 300.

[0112] The steps for switching the welding strip positioning mechanism 1 between the first and second states are as follows: The positioning drive source 141 is activated to drive the nearby transmission amplification unit 142 to rotate around the hinge end 1422 as the rotation center. When the transmission amplification unit 142 rotates, its connecting end 1423 can apply a force to the force-receiving end 1421 of the next-level transmission amplification unit 142, and so on, until the output force of the positioning drive source 141 is transmitted to the transmission amplification unit 142 near the pressure plate assembly 13; the transmission amplification unit near the pressure plate assembly 13 The connecting end 1423 of 142 can drive multiple pressure plates 131 to move within the bearing groove frame 12 via the connecting plate 132, thereby switching the pressure plates 131 between a clearance position within the clearance space 122 of the bearing groove frame 12 and a pressing position where they are disengaged from the clearance space 122 to press the welding strip to be cut onto the second groove wall of the positioning groove 121 of the bearing groove frame 12. Specifically, when the welding strip positioning mechanism 1 is in the first state, the pressure plate 131 is in the clearance position; when the welding strip positioning mechanism 1 is in the second state, the pressure plate 131 is in the pressing position. Using this switching method, the positioning drive source 141 only needs a small output force to apply a large force to the pressure plates 131, so that the multiple pressure plates 131 stably press the welding strip in the corresponding positioning groove 121. Therefore, the positioning drive source 141 can use a smaller cylinder, reducing the purchase cost of the positioning drive source 141.

[0113] Step S2 specifically includes: Step S21, both welding strip positioning mechanisms 1 switch from the second state to the first state to loosen the welding strip to be cut; Step S22, the pulling drive mechanism 6 drives the clamping mechanism 4 and the clamping drive mechanism 5 to move towards the side closer to the cutting device 300 through the mounting bracket 3, so that the welding strip to be cut extending from the cutting position of the cutting device 300 extends into the clamping space formed by the upper clamping member 43 and the lower clamping member 44; Step S23, the clamping drive source 51 is activated to drive the first force application point 531 to move towards the direction closer to the second force application point 532, and at the same time, the first force application point 531... The reaction force applied to the clamping drive source 51 acts on the second force application point 532 through the return bar 54, causing the second force application point 532 to move closer to the first force application point 531. When the first force application point 531 and the second force application point 532 approach each other, the first output point 533 and the second output point 534 move away from each other, thereby causing the upper clamping member 43 and the lower clamping member 44 to clamp the corresponding welding strip to be cut. In step S24, the strip pulling drive mechanism 6 drives the clamping mechanism 4 and the clamping drive mechanism 5 to move away from the cutting device 300 through the mounting frame 3, so as to pull the welding strip to be cut out a preset length. Due to the effect of the return bar 54, the output force of the clamping drive source 51 can be reduced while the clamping force on the welding strip can be increased, thereby reducing the strength requirement of the mounting frame 3 and ensuring a good clamping effect on the welding strip.

[0114] Step S3 specifically includes: Step S31, at least one welding strip positioning mechanism 1 switches from the first state to the second state to fix the welding strip to be cut; Step S32, the cutting drive source 83 is started to drive the lower cutter 82 to move upward and cooperate with the upper cutter 81 to cut the welding strip to be cut.

[0115] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A welding strip cutting device, characterized in that, The welding strip cutting equipment includes a strip feeding device (100), a strip pulling device (200), and a cutting device (300), wherein the strip feeding device (100) and the strip pulling device (200) are located on both sides of the cutting device (300); The tape feeding device (100) includes two tape positioning mechanisms (1), which are spaced apart along a first direction and can move along the first direction. Each tape positioning mechanism (1) includes a positioning drive source (141), a clamping part, and several transmission amplification units (142) connected to each other using the lever principle. The positioning drive source (141) drives the clamping part to move through the transmission amplification units (142) so that the tape positioning mechanism (1) switches between a first state in which the tape to be cut passes through and a second state in which the tape to be cut is fixed. The transmission amplification units (142) are configured to increase the output force of the clamping part from the positioning drive source (141) to achieve the clamping of the tape. The strip pulling device (200) is configured to clamp the welding strip to be cut and pull it out from the welding strip positioning mechanism (1); The cutting device (300) is configured to cut the welding strip to be cut, which is fixed between the feeding device (100) and the pulling device (200); The welding strip positioning mechanism (1) includes: Base (11); A support groove frame (12) is provided on the base (11). The support groove frame (12) is provided with a plurality of positioning grooves (121) arranged at intervals along its length direction for the welding strip to be cut to pass through. Each positioning groove (121) includes a first groove wall and a second groove wall opposite to each other. An avoidance space (122) is provided on the first groove wall. The pressure plate assembly (13) includes multiple pressure plates (131) movably disposed within the bearing groove frame (12). The multiple pressure plates (131) correspond one-to-one with the multiple positioning grooves (121). When the welding strip positioning mechanism (1) is in the first state, each pressure plate (131) is located within the corresponding clearance space (122). When the welding strip positioning mechanism (1) is in the second state, each pressure plate (131) can press the corresponding welding strip to be cut onto the second groove wall. The end of the pressure plate (131) forms the clamping part.

2. The welding strip cutting equipment according to claim 1, characterized in that, The transmission force amplification unit (142) is a force amplification link. Each of the force amplification links includes a force-receiving end (1421), a connecting end (1423), and a hinge end (1422). The hinge end (1422) is hinged to the base (11). The force-receiving end (1421) of one of the two transmission force amplification units (142) located at both ends is hinged to the output end of the positioning drive source (141), and the connecting end (1423) of the other is connected to the pressure plate assembly (13) in a transmission connection. The connecting end (1423) of the transmission amplification unit (142) located near the positioning drive source (141) of the two adjacent transmission amplification units (142) is hinged to the force-receiving end (1421) of the other transmission amplification unit (142).

3. The welding strip cutting equipment according to claim 1, characterized in that, A welding strip extension plate (17) is also provided between the welding strip positioning mechanism (1) located near the cutting device (300) and the cutting device (300). The welding strip extension plate (17) is provided with a plurality of guide grooves (171) that correspond one-to-one with the positioning grooves (121) on the bearing groove frame (12) of the welding strip positioning mechanism (1). A plurality of welding strips to be cut can pass through the corresponding guide grooves (171).

4. The welding strip cutting equipment according to claim 1, characterized in that, The belt-pulling device (200) includes: Mounting bracket (3); The clamping mechanism (4) includes an upper mounting plate (41) and a lower mounting plate (42) that are slidably disposed on the mounting frame (3). The bottom of the upper mounting plate (41) is provided with a plurality of upper clamping members (43) arranged at intervals along its length direction. The lower mounting plate (42) is provided with a plurality of lower clamping members (44) that correspond one-to-one with the upper clamping members (43). A clamping space is formed between the corresponding upper clamping members (43) and lower clamping members (44). The clamping drive mechanism (5) is configured to simultaneously drive the upper mounting plate (41) and the lower mounting plate (42) to slide relative to the mounting frame (3) to adjust the width of the clamping space.

5. The welding strip cutting equipment according to claim 4, characterized in that, The clamping drive mechanism (5) includes a clamping drive source (51), a linkage assembly (53), and a return bar (54). The linkage assembly (53) includes a first force application point (531) and a second force application point (532) and a first force output point (533) and a second force output point (534) respectively. The first force application point (531) is located at the output end of the clamping drive source (51), and the second force application point (532) is connected to the clamping drive source (51) through the return bar (54). The fixed end of the power source (51) is connected, the first output point (533) and the second output point (534) are used to move closer or further away from each other under the interaction of the first force application point (531) and the second force application point (532), the first output point (533) and the second output point (534) are rotatably connected to the upper mounting plate (41) and the lower mounting plate (42) respectively, and the sliding directions of the upper mounting plate (41) and the lower mounting plate (42) are parallel.

6. The welding strip cutting equipment according to any one of claims 1-5, characterized in that, The cutting device (300) includes: Cutting and fixing frame (7); The cutting mechanism (8) includes an upper cutter (81) and a lower cutter (82) arranged vertically on the cutting fixture (7), at least one of the upper cutter (81) and the lower cutter (82) being able to move toward the other to cut the welding strip.

7. The welding strip cutting equipment according to claim 6, characterized in that, The cutting and fixing frame (7) includes two spaced-apart base columns. One end of the upper cutter (81) is hinged to one of the base columns, and the other end of the upper cutter (81) is detachably connected to the other base column. When the upper cutter (81) is in the cutting position, its cutting surface is higher than the position of the extended weld strip to be cut. The lower cutter (82) is disposed between the two base columns. The cutting mechanism (8) further includes a cutting drive source (83). The output end of the cutting drive source (83) is connected to the lower cutter (82) to drive the lower cutter (82) to move upward, thereby cutting the welding strip to be cut between the upper cutter (81) and the lower cutter (82).

8. The welding strip cutting equipment according to claim 7, characterized in that, The cutting drive source (83) includes two cylinders stacked vertically. The output end of one cylinder is fixedly connected to the lower cutter (82) and located at the output end of the other cylinder. The output shafts of the two cylinders move in the same direction.

9. A method for cutting welding strip, based on the welding strip cutting equipment according to any one of claims 1-8, characterized in that, Includes the following steps: Step S1: Two welding strip positioning mechanisms (1) respectively clamp two fixed points of the welding strip to be cut along the length direction, and drive the welding strip to be cut close to the cutting device (300) so that its end extends out of the cutting position of the cutting device (300), and the welding strip positioning mechanism (1) located on the side closer to the cutting device (300) moves a preset distance more than the other welding strip positioning mechanism (1); Step S2: The pulling device (200) clamps one end of the welding strip to be cut that extends out of the cutting position of the cutting device (300), the two welding strip positioning mechanisms (1) release the welding strip to be cut, the pulling device (200) drives the welding strip to be cut to move a preset length, and at the same time the two welding strip positioning mechanisms (1) reset. Step S3: At least one welding strip positioning mechanism (1) clamps the welding strip to be cut, and the cutting device (300) cuts off the portion of the welding strip to be cut at the cutting position.

Images