Solder strip processing device

Abstract

The utility model discloses a solder strip processing device which comprises a traction mechanism, a flattening mechanism, a pressing mechanism and a slitting mechanism, the flattening mechanism, the pressing mechanism and the slitting mechanism are sequentially arranged in the solder strip transferring direction, the clamping end of the traction mechanism is configured to move to the position between the pressing mechanism and the slitting mechanism to clamp an ith group of solder strips, and an (i + 1) th group of solder strips and an (i + 2) th group of solder strips are sequentially connected behind the ith group of solder strips; the traction mechanism is further configured to pull the clamped ith group of welding strips forwards so that the ith group of welding strips can cross the slitting mechanism, the (i + 1) th group of welding strips can be moved to the pressing mechanism, and the (i + 2) th group of welding strips can be moved to the flattening mechanism. The pressing mechanism is configured to press a preset part of the (i + 1) th group of welding strips carried by the pressing mechanism, and the flattening mechanism is configured to flatten a preset part of the (i + 2) th group of welding strips carried by the flattening mechanism; the slitting mechanism is configured to cut off the ith group of welding strips and the (i + 1) th group of welding strips, and the welding strip processing device presses the (i + 1) th group of welding strips through the pressing mechanism, so that the welding strips cannot deflect when the traction mechanism clamps the (i + 1) th group of welding strips.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of photovoltaic cell production equipment, and particularly relates to a welding strip processing device. BACKGROUND

[0002] After the adjacent cell pieces are electrically connected through the welding strips, a cell string is formed, the front half of each welding strip is fixed on the upper surface of the previous cell piece, and the rear half of each welding strip is fixed on the lower surface of the next cell piece, so that the electrical connection of the adjacent two cell pieces is realized. Since the front and rear halves of each welding strip are pressed by two cell pieces respectively, in order to avoid the welding strip from pressing the cell piece, the middle part of the welding strip is generally flattened.

[0003] Referring to Figure 1 As shown in the figure, the welding strip processing device generally comprises a flattening mechanism 10 and a slitting mechanism 20 arranged in sequence, the flattening mechanism 10 flattens the predetermined part of the welding strips 30 sent out from the material roll, the traction mechanism 40 of the cell string welding device moves between the flattening mechanism 10 and the slitting mechanism 20, after the traction mechanism 40 clamps the end of the flattened welding strip 30, the flattening mechanism 10 releases the welding strip 30, the traction mechanism 40 pulls the welding strip 30 forward through the slitting mechanism 20 to obtain a welding strip 30 of a predetermined length, and the part of the welding strip beyond the slitting mechanism 20 is the first welding strip 31. The flattening mechanism 10 flattens and presses the part of the welding strip newly sent to the flattening mechanism 10, the slitting mechanism 20 cuts off the first welding strip 31 from the subsequent welding strip, and the traction mechanism 40 sends the first welding strip 31 to the cell string welding device for use. Subsequently, the traction mechanism 40 moves again between the flattening mechanism 10 and the slitting mechanism 20 to clamp the end of the flattened and pressed welding strip, the traction mechanism 40 pulls the second welding strip 32 of a predetermined length forward, and the above steps are repeated to continuously send the welding strip to the cell string welding device.

[0004] When the length of the welding strip is 200 mm, since the flattening mechanism 10 flattens the middle part of each welding strip 30, the distance between the flattening mechanism 10 and the slitting mechanism 20 is about 100 mm. When the length of the welding strip required by the cell string is shortened to 100 mm, the distance between the flattening mechanism 10 and the slitting mechanism 20 should be shortened to 50 mm, so that the traction mechanism 40 can reciprocatingly pull the welding strip 30, but at this time, there is not enough space between the flattening mechanism 10 and the slitting mechanism 20 for the traction mechanism 40 to move. If the distance between the flattening mechanism 10 and the slitting mechanism 20 is still about 100 mm, the flattening mechanism 10 will press the third welding strip 33, after the slitting mechanism 20 cuts off the first welding strip 31 and the second welding strip 32, when the traction mechanism 40 clamps the second welding strip 32, the second welding strip 32 will have the possibility of rotating relative to the third welding strip 33, which will cause the flattened part of the second welding strip 32 to rotate, and the deflected welding strip 30 cannot be closely attached to the cell piece during subsequent stringing, which will cause the risk of hidden cracks in the cell piece. Utility Model Content

[0005] The purpose of this application is to provide a solder strip processing apparatus to solve the aforementioned problems existing in existing solder strip processing apparatuses.

[0006] To achieve this objective, the following technical solution is adopted in this application:

[0007] This application discloses a welding strip processing device, which includes a traction mechanism and a flattening mechanism, a pressing mechanism, and a slitting mechanism arranged sequentially along the welding strip conveying direction, wherein:

[0008] The clamping end of the traction mechanism is configured to move between the pressing mechanism and the cutting mechanism to clamp the i-th group of welding strips. The i-th group of welding strips includes multiple welding strips arranged in parallel and spaced along a first direction, which is perpendicular to the welding strip conveying direction. The i-th group of welding strips is followed by the (i+1)-th group of welding strips and the (i+2)-th group of welding strips, where i is a natural number not less than 1.

[0009] The traction mechanism is also configured to pull the i-th group of welding strips held in the welding strip conveying direction forward, so that the i-th group of welding strips passes over the slitting mechanism, the (i+1)-th group of welding strips moves to the pressing mechanism, and the (i+2)-th group of welding strips moves to the flattening mechanism.

[0010] The clamping mechanism is configured to receive the (i+1)th group of welding strips and clamp the preset portion of the received (i+1)th group of welding strips; the flattening mechanism is configured to receive the (i+2)th group of welding strips and flatten the preset portion of the received (i+2)th group of welding strips.

[0011] The slitting mechanism is configured to cut the i-th group of welding strips and the (i+1)-th group of welding strips, and the traction mechanism is also configured to send the cut i-th group of welding strips to the next processing station.

[0012] The welding strip processing device proposed in this application adds a clamping mechanism between the flattening mechanism and the slitting mechanism. The clamping mechanism clamps and fixes the preset part of the i+1 group of welding strips, so that when the traction mechanism clamps the i+1 group of welding strips, the multiple welding strips of the i+1 group of welding strips will not deflect, ensuring that the multiple welding strips are always in a flat state and delivered to the stringing station.

[0013] Optionally, the clamping mechanism includes a support platform, a first driving component, a first lifting component, and several first clamping components, wherein:

[0014] The support platform is configured to support the (i+1)th group of welding strips;

[0015] The first lifting component is movably disposed above the support platform, and several first clamping components are spaced apart on the first lifting component along the first direction, with each first clamping component corresponding to one welding strip in the (i+1)th group of welding strips;

[0016] The driving end of the first driving member is connected to the first lifting member, and the first driving member is configured to drive the first lifting member to descend, so as to drive the plurality of first pressing members to press and fix the flattened portions of each of the solder strips in the i+1th group on the carrying table.

[0017] The first driving member is further configured to drive the first lifting member to ascend, so as to drive the plurality of first pressing members to release the solder strips in the i+1th group.

[0018] The first driving member drives the first lifting member to descend by a preset height, so as to drive the plurality of first pressing members to descend by the preset height, and then press and fix the flattened portions of each of the solder strips on the carrying table, thereby providing a pressing mechanism which is simple in structure and stable and reliable in pressing.

[0019] Optionally, the pressing mechanism further comprises an auxiliary pressing assembly configured to press and fix the portions of the solder strips in the i+1th group between the flattening mechanism and the plurality of first pressing members on the carrying table.

[0020] By arranging the auxiliary pressing assembly, the portions of the solder strips in the i+1th group between the flattening mechanism and the plurality of first pressing members are pressed and fixed on the carrying table, and the deflection of the plurality of solder strips in the i+1th group is further avoided.

[0021] Optionally, the auxiliary pressing assembly comprises a mounting plate and a plurality of second pressing members, wherein:

[0022] The mounting plate is mounted on the first lifting member, and the plurality of second pressing members are mounted on the mounting plate in the first direction, each second pressing member is used to press one solder strip, and the plurality of second pressing members are located between the plurality of first pressing members and the flattening mechanism.

[0023] The plurality of second pressing members are divided into two rows in the direction in which the solder strips are transferred, each row of second pressing members comprises a plurality of second pressing members arranged in the first direction, and the two rows of second pressing members are staggered in the first direction.

[0024] By mounting the mounting plate on the first lifting member and mounting the plurality of second pressing members on the mounting plate, the auxiliary pressing assembly and the pressing mechanism share one first driving member, and the overall structure is simplified; the first driving member drives the first lifting member to descend by a preset height, so as to drive the plurality of second pressing members to descend by the preset height, and then press and fix the portions of each of the solder strips between the flattening mechanism and the plurality of first pressing members on the carrying table, thereby providing an auxiliary pressing assembly which is simple in structure and stable and reliable in pressing; by dividing the plurality of second pressing members into two rows and arranging the two rows of second pressing members in the first direction, the space occupied by the plurality of second pressing members in the first direction is reduced, and the layout is reasonable.

[0025] Optionally, the pressing mechanism further comprises a guide assembly configured to define a path for the solder strip to move from the pressing mechanism to the slitting mechanism.

[0026] By providing the guide assembly, the solder strip is limited between the pressing mechanism and the slitting mechanism, further ensuring that the solder strip does not deviate when clamping or slitting the solder strip.

[0027] Optionally, the guide assembly comprises an auxiliary pressing plate which is detachably mounted on the bearing table, wherein:

[0028] The bottom surface of the auxiliary pressing plate is provided with a plurality of limiting protrusions spaced apart along the first direction, and the bearing table is provided with a plurality of accommodating grooves spaced apart along the first direction, each accommodating groove corresponding to a limiting protrusion, and the space between adjacent two accommodating grooves forming a bearing protrusion for carrying a solder strip;

[0029] The limiting protrusions of the auxiliary pressing plate are inserted into the corresponding accommodating grooves, and the space between adjacent two limiting protrusions cooperates with the bearing protrusion to form a space for a solder strip to pass through.

[0030] By providing a plurality of limiting protrusions on the bottom surface of the auxiliary pressing plate and a plurality of accommodating grooves on the bearing table, the limiting protrusions are inserted into the accommodating grooves, and the space between adjacent two limiting protrusions cooperates with the bearing protrusion to form a space for a solder strip to pass through, thereby limiting the solder strip, providing a guide assembly with simple structure and high guiding precision.

[0031] Optionally, the auxiliary pressing plate is a metal plate made of ferromagnetic material, and the bearing table is provided with a magnet for attracting and fixing the auxiliary pressing plate.

[0032] By providing the auxiliary pressing plate as a metal plate and the magnet on the bearing table, a way of using the magnet to attract and fix the auxiliary pressing plate is provided, which is simple in structure and easy to disassemble and assemble.

[0033] Optionally, the end of the bearing table close to the slitting mechanism is provided with a plurality of guide grooves spaced apart along the first direction, each guide groove corresponding to a bearing protrusion, and each guide groove being configured to pass through a solder strip.

[0034] By providing a plurality of guide grooves on the end of the bearing table close to the slitting mechanism, each guide groove passing through a solder strip, the secondary guiding of the solder strip led out of the bearing table is realized, further avoiding the deviation of the solder strip.

[0035] Optionally, the flattening mechanism comprises a base, a second driving member, a flattening member and a pressing table, wherein:

[0036] The driving end of the second driving member is connected to the flattening member, and the second driving member is configured to drive the flattening member to move relative to the pressing table to flatten the i+2 group of solder strips between the flattening member and the pressing table.

[0037] The second driving member comprises a cylinder, a connecting rod and an adapter, the adapter has a first connecting part and a second connecting part, the connecting rod is rotatably installed on the base through a first rotating shaft, a first end of the connecting rod is hinged to a driving end of the cylinder, a second end of the connecting rod is rotatably connected with the first connecting part, and the second connecting part is rotatably connected with the flattening member, the cylinder drives the first end of the connecting rod to rotate the connecting rod relative to the base around the first rotating shaft, and drives the flattening member to move downward towards the pressing table.

[0038] The first connecting part of the adapter is rotatably connected with the connecting rod, and the second connecting part is rotatably connected with the flattening member, when the cylinder drives the first end of the connecting rod to swing, the connecting rod applies a downward force to the flattening member through the adapter, and the flattening member moves downward towards the pressing table to perform flattening treatment on the preset part of the welding strip on the pressing table, since the adapter is rotatably connected with the connecting rod and the flattening member, the adapter and the connecting rod and the flattening member do not move laterally relative to each other, which greatly reduces the wear between the adapter and the connecting rod and the flattening member, thereby prolonging the service life of the welding strip flattening mechanism.

[0039] Optionally, the flattening mechanism further comprises a reset spring for resetting the flattening member, the reset spring is sleeved on the flattening member, a first end of the reset spring is connected to or abuts against a first step surface on the flattening member, a second end of the reset spring abuts against a second step surface provided on the base, and the downward pressing surface of the flattening member is lower than the second step surface.

[0040] The reset spring can drive the flattening member to automatically reset through its elastic force after the cylinder drives the flattening member to perform flattening treatment on the welding strip. BRIEF DESCRIPTION OF DRAWINGS

[0041] Figure 1 is a structural schematic view of an existing welding strip processing device;

[0042] Figure 2 is a side view schematic view of a welding strip processing device provided by the embodiment of the application;

[0043] Figure 3 is a three-dimensional structural schematic view of a welding strip processing device provided by the embodiment of the application;

[0044] Figure 4 is a side view schematic view of a pressing mechanism of a welding strip processing device provided by the embodiment of the application;

[0045] Figure 5 is a three-dimensional structural schematic view of a pressing mechanism of a welding strip processing device provided by the embodiment of the application;

[0046] Figure 6is a perspective structural schematic view of an auxiliary pressing assembly of a solder strip processing device provided by an embodiment of the present application;

[0047] Figure 7 is a first perspective exploded schematic view of a guiding assembly of the solder strip processing device provided by an embodiment of the present application;

[0048] Figure 8 is a second perspective exploded schematic view of the guiding assembly of the solder strip processing device provided by an embodiment of the present application;

[0049] Figure 9 is a front schematic view of a flattening mechanism of the solder strip processing device provided by an embodiment of the present application;

[0050] Figure 10 is Figure 9 is a sectional view in A-A direction.

[0051] Figures 1 to 10 includes the following reference signs:

[0052] the flattening mechanism 10 includes a base 11, a second driving member 12, a cylinder 120, a connecting rod 121, an adapter 122, a first connecting part 1220, a second connecting part 1221, a flattening member 13, a pressing table 14, a first rotating shaft 15, a second rotating shaft 16, a third rotating shaft 17, and a return spring 18;

[0053] the slitting mechanism 20 includes a first rotating shaft 21, a second rotating shaft 22, a third rotating shaft 23, a fourth rotating shaft 24, a first driving member 25, a second driving member 26, a first connecting rod 27, a second connecting rod 28, a first connecting part 27a, a second connecting part 27b, a third connecting part 28a, a fourth connecting part 28b, a first cutting member 29, a second cutting member 29a, a third cutting member 29b, a fourth cutting member 29c, a first connecting rod 27, a second connecting rod 28, a first connecting part 27a, a second connecting part 27b, a third connecting part 28a, a fourth connecting part 28b, a first cutting member 29, a second cutting member 29a, a third cutting member 29b, and a fourth cutting member 29c;

[0054] the solder strip 30 includes a first section solder strip 31, a second section solder strip 32, and a third section solder strip 33;

[0055] the traction mechanism 40 includes a first rotating shaft 41, a second rotating shaft 42, a third rotating shaft 43, a fourth rotating shaft 44, a first driving member 45, a second driving member 46, a first connecting rod 47, a second connecting rod 48, a first connecting part 47a, a second connecting part 47b, a third connecting part 48a, a fourth connecting part 48b, a first traction member 49, a second traction member 49a, a third traction member 49b, and a fourth traction member 49c;

[0056] the pressing mechanism 50 includes a bearing table 51, a receiving groove 510, a bearing protrusion 511, a magnet 512, a guiding groove 513, a first driving member 52, a first lifting member 53, a first pressing member 54, a mounting base 55, an auxiliary pressing assembly 56, a mounting plate 560, a second pressing member 561, a guiding assembly 57, an auxiliary pressing plate 570, and a limiting protrusion 571. DETAILED DESCRIPTION

[0057] In order to make the above objectives, characteristics and advantages of the present application more apparent and comprehensible, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0058] After the adjacent battery pieces are electrically connected by the solder strips, the battery pieces are pressed by the two sections of each solder strip, in order to avoid the solder strip from pressing the battery pieces, the middle part of the solder strip is generally subjected to flattening processing.

[0059] Please refer to Figure 1As shown, the welding strip processing device generally comprises a flattening mechanism 10 and a slitting mechanism 20 arranged in sequence, the flattening mechanism 10 flattens a predetermined part of the welding strips 30 sent from the roll, the traction mechanism 40 of the battery string welding device moves to the position between the flattening mechanism 10 and the slitting mechanism 20, after the traction mechanism 40 clamps the end of the flattened welding strip 30, the flattening mechanism 10 releases the welding strip 30, and the traction mechanism 40 pulls the welding strip 30 forward through the slitting mechanism 20 to obtain a welding strip 30 of a predetermined length, and the part of the welding strip beyond the slitting mechanism 20 is the first welding strip 31. The flattening mechanism 10 flattens and compresses the part of the welding strip newly sent to the position of the flattening mechanism 10, the slitting mechanism 20 cuts off the first welding strip 31 and the subsequent welding strip, and the traction mechanism 40 sends the first welding strip 31 to the battery string welding device for use. Subsequently, the traction mechanism 40 moves to the position between the flattening mechanism 10 and the slitting mechanism 20 to clamp the end of the flattened and compressed welding strip, and the traction mechanism 40 pulls the second welding strip 32 of a predetermined length forward, and the above steps are repeated to continuously send the welding strip to the battery string welding device.

[0060] When the length of the welding strip is 200 mm, since the flattening mechanism 10 flattens the middle part of each welding strip 30, the distance between the flattening mechanism 10 and the slitting mechanism 20 is about 100 mm. When the length of the welding strip required by the battery string is shortened to 100 mm, the distance between the flattening mechanism 10 and the slitting mechanism 20 should be shortened to 50 mm so that the traction mechanism 40 can reciprocate to pull the welding strip 30, but at this time there is not enough space for the traction mechanism 40 to move between the flattening mechanism 10 and the slitting mechanism 20. If the distance between the flattening mechanism 10 and the slitting mechanism 20 is still about 100 mm, the flattening mechanism 10 compresses the third welding strip 33, after the slitting mechanism 20 cuts off the first welding strip 31 and the second welding strip 32, when the traction mechanism 40 clamps the second welding strip 32, the second welding strip 32 may rotate relative to the third welding strip 33, which causes the flattened part of the second welding strip 32 to rotate, and the deflected welding strip 30 cannot be closely attached to the battery sheet during subsequent stringing, which may cause the battery sheet to have a risk of hidden cracking.

[0061] Therefore, the present application provides a welding strip processing device, which refers to Figure 2 and Figure 3 As shown, the welding strip processing device provided by the embodiment of the present application comprises a traction mechanism 40 and a flattening mechanism 10, a compression mechanism 50 and a slitting mechanism 20 arranged in sequence along the conveying direction of the welding strip 30, the clamping end of the traction mechanism 40 is configured to move to the position between the compression mechanism 50 and the slitting mechanism 20 to clamp the i-th group of welding strips, the i-th group of welding strips comprises a plurality of welding strips 30 arranged along a first direction (X) and a second direction (Y) perpendicular to the first direction (X), the flattening mechanism 10 is configured to flatten and compress the welding strip 30 in the i-th group of welding strips, and the slitting mechanism 20 is configured to cut off the first welding strip 31 and the subsequent welding strip in the i-th group of welding strips. Figure 3The plurality of welding strips 30 are arranged in parallel and spaced apart in the first direction (X direction in the figure), the first direction is perpendicular to the welding strip conveying direction, the i-th group of welding strips is sequentially connected with the (i+1)-th group of welding strips and the (i+2)-th group of welding strips, i is a natural number not less than 1; the traction mechanism 40 is further configured to pull the clamped i-th group of welding strips forward along the welding strip conveying direction, so that the i-th group of welding strips passes through the cutting mechanism 20, the (i+1)-th group of welding strips moves to the pressing mechanism 50, and the (i+2)-th group of welding strips moves to the flattening mechanism 10; the pressing mechanism 50 is configured to receive the (i+1)-th group of welding strips and press the preset part of the received (i+1)-th group of welding strips; the flattening mechanism 10 is configured to receive the (i+2)-th group of welding strips and flatten the preset part of the received (i+2)-th group of welding strips; the cutting mechanism 20 is configured to cut the i-th group of welding strips and the (i+1)-th group of welding strips; the traction mechanism 40 is further configured to send the cut i-th group of welding strips to the next station.

[0062] The welding strip processing device provided in the present application adds a pressing mechanism 50 between the flattening mechanism 10 and the cutting mechanism 20, and the preset part of the (i+1)-th group of welding strips is pressed and fixed by the pressing mechanism 50, so that when the (i+1)-th group of welding strips is clamped by the traction mechanism 40, the plurality of welding strips in the (i+1)-th group of welding strips will not be deflected, ensuring that the plurality of welding strips are always in a flat state when sent to the string station.

[0063] Please refer to Figure 3 and Figure 4 As an embodiment, the pressing mechanism 50 includes a bearing table 51, a first driving member 52, a first lifting member 53, and a plurality of first pressing members 54. The bearing table 51 is configured to bear the (i+1)-th group of welding strips. The first lifting member 53 is arranged above the bearing table 51 in a lifting manner. The plurality of first pressing members 54 are installed on the first lifting member 53 in the first direction and correspond to one welding strip 30 in the (i+1)-th group of welding strips. The driving end of the first driving member 52 is connected to the first lifting member 53. The first driving member 52 is configured to drive the first lifting member 53 to descend, so as to drive the plurality of first pressing members 54 to press and fix the flattened part of each welding strip 30 in the (i+1)-th group of welding strips on the bearing table 51. The first driving member 52 is further configured to drive the first lifting member 53 to ascend, so as to drive the plurality of first pressing members 54 to release the (i+1)-th group of welding strips.

[0064] Specifically, the pressing mechanism 50 further includes a mounting seat 55, which is fixedly installed above the bearing table 51. The first lifting member 53 is installed on the mounting seat 55 in a lifting manner through a sliding guide pair composed of a linear guide rail and a sliding block.

[0065] Specifically, the first lifting member 53 is a lifting plate extending along the first direction, and the first driving member 52 is at least one air cylinder, a fixed end of the air cylinder is mounted on the base, and a driving rod of the air cylinder is connected to the first lifting member 53, and preferably, the first driving member 52 is two air cylinders arranged along the first direction.

[0066] Specifically, the first pressing member 54 is an elastic pressing needle installed on the first lifting member 53 and capable of floating up and down, so that the first pressing member 54 is in floating contact with the solder strip 30, thereby avoiding the solder strip from being pressed when the solder strip is pressed.

[0067] It can be seen that the first driving member 52 drives the first lifting member 53 to descend by a preset height, so as to drive the plurality of first pressing members 54 to descend by the preset height, and then the plurality of first pressing members 54 press and fix the flattened portions of each solder strip 30 on the carrying table 51, thereby providing a pressing mechanism 50 which is simple in structure and stable and reliable in pressing.

[0068] Please refer to Figures 3 to 6 As an embodiment, the pressing mechanism 50 further comprises an auxiliary pressing assembly 56, and the auxiliary pressing assembly 56 is configured to press and fix the portions of the i+1 group of solder strips between the flattening mechanism 10 and the plurality of first pressing members 54 on the carrying table 51.

[0069] It can be seen that by arranging the auxiliary pressing assembly 56, the portions of the i+1 group of solder strips between the flattening mechanism 10 and the plurality of first pressing members 54 are pressed and fixed on the carrying table 51, thereby further avoiding the deflection of the plurality of solder strips 30 of the i+1 group of solder strips.

[0070] As an embodiment, the auxiliary pressing assembly 56 comprises a mounting plate 560 and a plurality of second pressing members 561, the mounting plate 560 is mounted on the first lifting member 53, the plurality of second pressing members 561 are mounted on the mounting plate 560 along the first direction, each second pressing member 561 is used for pressing one solder strip 30, and the plurality of second pressing members 561 are located between the plurality of first pressing members 54 and the flattening mechanism 10; the plurality of second pressing members 561 are divided into two rows in the direction of the solder strip conveying, each row of second pressing members 561 comprises a plurality of second pressing members 561 arranged along the first direction, and the two rows of second pressing members 561 are staggered in the first direction.

[0071] Specifically, the second pressing member 561 is an elastic pressing column mounted on the mounting plate 560 and capable of floating up and down, compared with the elastic pressing needle, the elastic pressing column has a larger cross-sectional area, thereby improving the reliability of pressing the solder strip 30; meanwhile, in order to press each solder strip 30, the plurality of second pressing members 561 are arranged into two rows of second pressing members 561 staggered in the first direction.

[0072] It can be seen that by mounting the mounting plate 560 on the first lifting piece 53, and mounting the plurality of second pressing pieces 561 on the mounting plate 560, the second pressing piece 561 and the first pressing piece 54 share one first driving piece 52, simplifying the overall structure; the first driving piece 52 drives the first lifting piece 53 to descend by a preset height, to drive the plurality of second pressing pieces 561 to descend by a preset height, and then fix the part of each welding strip 30 between the flattening mechanism 10 and the plurality of first pressing pieces 54 on the bearing table 51, providing an auxiliary pressing assembly 56 which is simple in structure and stable and reliable in pressing; by dividing the plurality of second pressing pieces 561 into two rows, the two rows of second pressing pieces 561 are staggered in the first direction, reducing the space occupied by the plurality of second pressing pieces 561 in the first direction, and the layout is reasonable.

[0073] Please refer to Figure 3 , Figure 5 , Figure 7 and Figure 8 , as an embodiment, the pressing mechanism 50 further comprises a guide assembly 57, which is configured to define the path of the welding strip 30 moving from the pressing mechanism 50 to the slitting mechanism 20.

[0074] It can be seen that by providing the guide assembly 57, the welding strip 30 is limited between the pressing mechanism 50 and the slitting mechanism 20, further ensuring that the welding strip 30 does not shift when clamping or slitting the welding strip 30.

[0075] As an embodiment, the guide assembly 57 comprises an auxiliary pressing plate 570, which is detachably mounted on the bearing table 51, and a plurality of limiting protrusions 571 are arranged on the bottom surface of the auxiliary pressing plate 570 along the first direction, a plurality of accommodating grooves 510 are provided on the bearing table 51 along the first direction, each accommodating groove 510 corresponds to one limiting protrusion 571, and a bearing protrusion 511 for bearing one welding strip is formed between adjacent two accommodating grooves 510; the limiting protrusion 571 of the auxiliary pressing plate 570 is inserted into the corresponding accommodating groove 510, and the gap between adjacent two limiting protrusions 571 cooperates with the bearing protrusion 511 to form a space for one welding strip 30 to pass through.

[0076] It can be seen that by providing a plurality of limiting protrusions 571 on the bottom surface of the auxiliary pressing plate 570, and providing a plurality of accommodating grooves 510 on the bearing table 51, and inserting the limiting protrusion 571 into the accommodating groove 510 so that the gap between adjacent two limiting protrusions 571 cooperates with the bearing protrusion 511 to form a space for one welding strip 30 to pass through, the welding strip 30 is limited, providing a guide assembly 57 which is simple in structure and high in guiding precision.

[0077] As an implementation form, the auxiliary pressing plate 570 is a metal plate made of ferromagnetic material, and the magnetic body 512 is arranged on the bearing table 51 to adsorb and fix the auxiliary pressing plate 570 on the bearing table 51.

[0078] Specifically, the bearing table 51 is provided with two magnetic bodies 512 spaced apart along the first direction, and the two ends of the auxiliary pressing plate 570 along the first direction are adsorbed and fixed on the bearing table 51 by the two magnetic bodies 512.

[0079] It can be seen that by setting the auxiliary pressing plate 570 as a metal plate and arranging the magnetic body 512 on the bearing table 51, a way of using magnetic adsorption to fix the auxiliary pressing plate 570 is provided, which is simple in structure and convenient to disassemble and assemble.

[0080] As an implementation form, the bearing table 51 is provided with a plurality of guide grooves 513 spaced apart along the first direction near one end of the cutting mechanism 20, and each guide groove 513 corresponds to one bearing protrusion 511, and each guide groove 513 is configured to pass through one welding strip 30.

[0081] It can be seen that by arranging a plurality of guide grooves 513 spaced apart along the first direction near one end of the bearing table 51, and each guide groove 513 is configured to pass through one welding strip 30, the secondary guidance of the welding strip 30 led out of the bearing table 51 is realized, and the deflection of the welding strip 30 is further avoided.

[0082] Please refer to Figure 3 , Figure 4 , Figure 9 and Figure 10 As an implementation form, the flattening mechanism 10 includes a base 11, a second driving member 12, a flattening member 13, and a pressing table 14. The driving end of the second driving member 12 is connected to the flattening member 13, and the second driving member 12 is configured to drive the flattening member 13 to move relative to the pressing table 14 to flatten the i+2th group of welding strips between the flattening member 13 and the pressing table 14. The second driving member 12 includes a pneumatic cylinder 120, a connecting rod 121, and an adapter 122. The adapter 122 has a first connecting part 1220 and a second connecting part 1221. The connecting rod 121 is rotatably mounted on the base 11 through a first rotating shaft 15. The first end of the connecting rod 121 is hinged to the driving end of the pneumatic cylinder 120. The second end of the connecting rod 121 is rotatably connected to the first connecting part 1220. The second connecting part 1221 is rotatably connected to the flattening member 13. The pneumatic cylinder 120 drives the first end of the connecting rod 121 to rotate the connecting rod 121 relative to the base 11 about the first rotating shaft 15, thereby driving the flattening member 13 to move downward and towards the pressing table 14.

[0083] Specifically, the second end of the connecting rod 121 is rotatably connected to the first connecting part 1220 through a second rotating shaft 16, and the second connecting part 1221 is rotatably connected to the flattening member 13 through a third rotating shaft 17.

[0084] It can be seen that, by arranging the adapter 122 between the connecting rod 121 and the flattening piece 13, the first connecting portion 1220 of the adapter 122 is rotationally connected with the connecting rod 121, and the second connecting portion 1221 is rotationally connected with the flattening piece 13. When the cylinder 120 drives the first end of the connecting rod 121 to swing the connecting rod 121, the connecting rod 121 applies a downward force to the flattening piece 13 through the adapter 122, and the flattening piece 13 moves downward toward the pressing table 14 to perform flattening processing on the predetermined part of the solder strip 30 on the pressing table 14. Since the adapter 122 is rotationally connected with the connecting rod 121 and the flattening piece 13, the adapter 122 and the connecting rod 121, and the adapter 122 and the flattening piece 13 do not move laterally relative to each other, which greatly reduces the wear between the adapter 122 and the connecting rod 121 and the flattening piece 13, thereby prolonging the service life of the solder strip flattening mechanism.

[0085] As an embodiment, the flattening mechanism 10 further comprises a reset spring 18 for resetting the flattening piece 13. The reset spring 18 is sleeved on the flattening piece 13. The first end of the reset spring 18 is connected to or abuts against the first step surface on the flattening piece 13. The second end of the reset spring 18 abuts against the second step surface provided on the base 11. The lower pressing surface of the flattening piece 13 is lower than the second step surface.

[0086] It can be seen that, by arranging the reset spring 18, after the cylinder 120 drives the flattening piece 13 to perform flattening processing on the solder strip 30, the reset spring 18 can drive the flattening piece 13 to automatically reset by its elastic force.

[0087] Please refer to Figure 2 and Figure 3 In order to facilitate the clamping of the solder strip by the traction mechanism 40, the multiple solder strips sent out from the roll in the initial state pass over the flattening mechanism 10 and have a reserved portion extending out of the pressing mechanism 50. The working principle of the solder strip processing device according to the embodiment of the present application is illustrated by taking i=1 as an example.

[0088] S1, the flattening mechanism 10 flattens the predetermined part of the first group of solder strips sent out from the roll;

[0089] S2, the clamping end of the traction mechanism 40 moves to clamp the reserved portion of the multiple solder strips between the pressing mechanism 50 and the cutting mechanism 20;

[0090] S3, the flattening mechanism 10 releases the first group of solder strips, and the traction mechanism 40 pulls the clamped multiple solder strips forward, so that the reserved portion of the multiple solder strips passes over the cutting mechanism 20, the first group of solder strips moves to the pressing mechanism 50, the second group of solder strips moves to the flattening mechanism 10, the pressing mechanism 50 presses and fixes the predetermined part of the first group of solder strips, and the flattening mechanism 10 flattens the predetermined part of the second group of solder strips;

[0091] S4, the cutting mechanism 20 cuts the reserved part of the plurality of welding strips from the first group of welding strips, the clamping end of the traction mechanism 40 moves to clamp the first group of welding strips between the pressing mechanism 50 and the cutting mechanism 20, the pressing mechanism 50 releases the first group of welding strips, the flattening mechanism 10 releases the flattened second group of welding strips, the traction mechanism 40 pulls the clamped first group of welding strips forward along the conveying direction so that the first group of welding strips passes the cutting mechanism 20, the second group of welding strips moves to the pressing mechanism 50, the third group of welding strips moves to the flattening mechanism 10, the pressing mechanism 50 presses and fixes the preset part of the second group of welding strips, and the flattening mechanism 10 flattens the preset part of the third group of welding strips;

[0092] S5, the cutting mechanism 20 cuts the first group of welding strips from the second group of welding strips, and the traction mechanism 40 sends the first group of welding strips to the battery string welding equipment for use.

[0093] S6, the clamping end of the traction mechanism 40 returns to clamp the second group of welding strips between the pressing mechanism 50 and the cutting mechanism 20, the pressing mechanism 50 releases the second group of welding strips, the flattening mechanism 10 releases the flattened third group of welding strips, the traction mechanism 40 pulls the clamped second group of welding strips forward along the conveying direction so that the second group of welding strips passes the cutting mechanism 20, the third group of welding strips moves to the pressing mechanism 50, the pressing mechanism 50 presses and fixes the preset part of the third group of welding strips, and the flattening mechanism 10 flattens the preset part of the fourth group of welding strips.

[0094] S7, the cutting mechanism 20 cuts the second group of welding strips from the third group of welding strips, and the traction mechanism 40 sends the second group of welding strips to the battery string welding equipment for use.

[0095] After that, the previous steps are repeatedly performed to process each group of welding strips in turn and send them to the battery string welding equipment for use.

[0096] The welding strip processing device provided by the embodiment has the following advantages:

[0097] 1) When clamping the i+1 group of welding strips, the traction mechanism realizes the pressing and fixing of the preset part of the i+1 group of welding strips through the pressing mechanism, so that the plurality of welding strips of the i+1 group of welding strips does not deflect, and the plurality of welding strips is always in a flat state when being sent to the group string station.

[0098] 2) The overall structure of the pressing mechanism is simple, and the welding strip can be stably and reliably pressed.

[0099] 3) The auxiliary pressing assembly is arranged, which can press and fix the part of the i+1 group of welding strips between the flattening mechanism and the plurality of first pressing pieces on the carrying table, further avoiding the deflection of the plurality of welding strips of the i+1 group of welding strips.

[0100] 4) The guiding assembly and the guiding groove are arranged, the path of the self-pressing mechanism of the welding strip to the slitting mechanism is limited, and the welding strip is prevented from being skewed when moving towards the slitting mechanism.

[0101] 5) The service life of the flattening mechanism is long.

[0102] The above examples only illustrate the basic principles and characteristics of the application, and the application is not limited to the above examples. Various changes and modifications can be made to the application without departing from the spirit and scope of the application, and these changes and modifications all fall within the scope of the application. The scope of protection of the application is defined by the appended claims and their equivalents.

Claims

1. A welding strip handling device, characterized in that, The welding strip processing device comprises a traction mechanism and a flattening mechanism, a pressing mechanism and a slitting mechanism arranged in sequence along a welding strip conveying direction. The clamping end of the traction mechanism is configured to move to between the pressing mechanism and the slitting mechanism to clamp the ith group of welding strips, the ith group of welding strips comprising a plurality of welding strips arranged in parallel and spaced apart along a first direction, the first direction being perpendicular to the welding strip conveying direction, the ith group of welding strips being sequentially connected with an ith+1 group of welding strips and an ith+2 group of welding strips in sequence, i being a natural number not less than 1; The traction mechanism is further configured to pull the clamped ith group of welding strips forward along the welding strip conveying direction to make the ith group of welding strips pass over the slitting mechanism, the ith+1 group of welding strips moving to the pressing mechanism and the ith+2 group of welding strips moving to the flattening mechanism; The pressing mechanism is configured to receive the ith+1 group of welding strips and press a preset part of the received ith+1 group of welding strips, and the flattening mechanism is configured to receive the ith+2 group of welding strips and flatten a preset part of the received ith+2 group of welding strips; The slitting mechanism is configured to cut the ith group of welding strips and the ith+1 group of welding strips, and the traction mechanism is further configured to convey the cut ith group of welding strips to a subsequent station.

2. The solder strip handling device of claim 1, wherein, The pressing mechanism comprises a bearing table, a first driving member, a first lifting member and a plurality of first pressing members. The bearing table is configured to bear the ith+1 group of welding strips; The first lifting member is arranged above the bearing table in a liftable manner, and the plurality of first pressing members are mounted on the first lifting member in the first direction and correspond to the welding strips in the ith+1 group of welding strips; The driving end of the first driving member is connected to the first lifting member, and the first driving member is configured to drive the first lifting member to descend to drive the plurality of first pressing members to press and fix the flattened part of each welding strip in the ith+1 group of welding strips on the bearing table; The first driving member is further configured to drive the first lifting member to ascend to drive the plurality of first pressing members to release the ith+1 group of welding strips.

3. The solder strip handling device of claim 2, wherein, The pressing mechanism further comprises an auxiliary pressing assembly configured to press and fix the part of the ith+1 group of welding strips between the flattening mechanism and the plurality of first pressing members on the bearing table.

4. The solder strip handling device of claim 3, wherein, The auxiliary pressing assembly comprises a mounting plate and a plurality of second pressing members. The mounting plate is mounted on the first lifting member, and the plurality of second pressing members are mounted on the mounting plate in the first direction and correspond to the welding strips, and the plurality of second pressing members are located between the plurality of first pressing members and the flattening mechanism; The plurality of second pressing members are divided into two rows in the welding strip conveying direction, each row of second pressing members comprising a plurality of second pressing members arranged in the first direction, and the two rows of second pressing members are arranged in the first direction.

5. The solder strip handling device of claim 2, wherein, The pressing mechanism further comprises a guide assembly configured to define a path for the solder strip to move from the pressing mechanism to the slitting mechanism.

6. The solder strip handling device of claim 5, wherein, The guide assembly comprises an auxiliary pressing plate detachably mounted on the bearing table, wherein: A plurality of limiting protrusions are arranged on the bottom surface of the auxiliary pressing plate along the first direction, and a plurality of accommodating grooves are arranged on the bearing table along the first direction, each accommodating groove corresponding to one limiting protrusion, and a bearing protrusion for bearing one solder strip being formed between two adjacent accommodating grooves. The limiting protrusions of the auxiliary pressing plate are inserted into the corresponding accommodating grooves, and the gap between two adjacent limiting protrusions cooperates with the bearing protrusion to form a space for one solder strip to pass through.

7. The solder strip handling device of claim 6, wherein, The auxiliary pressing plate is a metal plate made of ferromagnetic material, and a magnet is arranged on the bearing table to attract and fix the auxiliary pressing plate on the bearing table.

8. The solder strip handling device of claim 6, wherein, A plurality of guide grooves are arranged on one end of the bearing table close to the slitting mechanism along the first direction, each guide groove corresponding to one bearing protrusion, and each guide groove being configured to allow one solder strip to pass through.

9. The solder strip handling device of claim 1, wherein, The flattening mechanism comprises a base, a second driving member, a flattening member, and a pressing table, wherein: The driving end of the second driving member is connected to the flattening member, and the second driving member is configured to drive the flattening member to move relative to the pressing table to flatten the (i+2)th group of solder strips between the flattening member and the pressing table. The second driving member comprises a cylinder, a connecting rod, and an adapter, the adapter having a first connecting portion and a second connecting portion, the connecting rod being rotatably mounted on the base via a first rotating shaft, a first end of the connecting rod being hingedly connected to the driving end of the cylinder, a second end of the connecting rod being rotatably connected to the first connecting portion, the second connecting portion being rotatably connected to the flattening member, and the cylinder driving the first end of the connecting rod to rotate the connecting rod relative to the base about the first rotating shaft to drive the flattening member to move downward toward the pressing table.

10. The solder strip handling device of claim 9, wherein, The flattening mechanism further comprises a reset spring for resetting the flattening member, the reset spring being sleeved on the flattening member, a first end of the reset spring being connected to the flattening member or abutting against a first step surface on the flattening member, a second end of the reset spring abutting against a second step surface arranged on the base, and a lower surface of the flattening member being lower than the second step surface.

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