Solder strip control mechanism and solder strip preparation device

Abstract

The utility model discloses a solder strip control mechanism and a solder strip preparation device, and relates to the technical field of battery string production, the solder strip control mechanism comprises a left baffle plate and a right baffle plate which are attached to each other, and a driving part which is in driving connection with the left baffle plate and the right baffle plate, the left baffle plate is provided with a plurality of first blocking pieces, and the right baffle plate is provided with a plurality of second blocking pieces; grooves with opposite openings are formed in the first blocking piece and the second blocking piece correspondingly, a welding strip containing cavity is formed between the two oppositely-arranged grooves, and the driving component is used for driving the left baffle and the right baffle to move horizontally so that the groove in the first blocking piece and the groove in the second blocking piece can get close to each other or get away from each other. The width of the solder strip contained in the solder strip containing cavity can be adjusted through the driving component so as to adapt to solder strips of different specifications, meanwhile, a small gap between the solder strip containing cavity and the solder strip can be controlled to be kept, the position of the solder strip in the solder strip containing cavity is accurately controlled, the welding position of a battery string is correctly in butt joint, and the welding quality of the battery string is improved.

Description

Technical Field

[0001] This utility model relates to the field of battery string production technology, and in particular to a control mechanism for welding strips and a welding strip preparation device. Background Technology

[0002] In the battery string fabrication process, the solder ribbon is pulled from the solder ribbon roll and cut into segments of matching length to the battery cells. These segments are then transferred to the battery cells for precise bonding before being connected in series to form a battery string. It is crucial that the solder ribbon segments do not shift position during the process of overlapping with the battery cell surface. Existing technologies typically use guide grooves to control the lateral movement of the solder ribbon. A movable, openable baffle is installed at the top of the guide groove to control the solder ribbon within the groove. However, to accommodate solder ribbons of different diameters, the guide groove is usually quite wide, leaving a large gap between it and the sides of the solder ribbon. This causes the controlled solder ribbon to easily wobble within the groove, affecting the precise positioning of the solder ribbon segments relative to the battery cells and impacting the welding quality of the battery string. Furthermore, pushing the solder ribbon to one side with the baffle can cause the solder ribbon to deviate and bend, veering out of its preset position. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a control mechanism for welding strips and a welding strip preparation device.

[0004] In a first aspect, a control mechanism for welding strip includes: a left baffle and a right baffle that are fitted together, and a drive component that is motively connected to the left baffle and the right baffle. The left baffle is provided with a plurality of first abutments, and the right baffle is provided with a plurality of second abutments. The first abutments and the second abutments are respectively provided with grooves with opposite openings, and a welding strip receiving cavity is formed between the two oppositely arranged grooves. The drive component is used to drive the left baffle and the right baffle to translate so that the grooves on the first abutments and the grooves on the second abutments move closer to each other or further away from each other.

[0005] Optionally, the driving component includes a drive motor and a cam mounted on the output end of the drive motor. The first abutment is connected to the first rotating shaft of the cam via a first connecting plate, and the second abutment is connected to the second rotating shaft of the cam via a second connecting plate. The central axes of the first rotating shaft and the second rotating shaft are arranged parallel to each other.

[0006] Optionally, it also includes a mounting base, wherein the left baffle and the right baffle are limited to the mounting base by a pin, and the driving component is fixedly mounted on the mounting base.

[0007] Optionally, the mounting base is further provided with a welding strip guide plate, which is located on one side of the left baffle or the right baffle. The top of the welding strip guide plate is provided with a plurality of guide grooves extending along the length of the welding strip, and the ends of the guide grooves are connected to the welding strip receiving cavity.

[0008] Optionally, it also includes a drive plate connected to the mounting base, one end of the drive plate being connected to a lifting assembly, the lifting assembly being used to drive the mounting base connected to the drive plate to rise and fall.

[0009] Optionally, the center of the welding strip receiving cavity is directly opposite the center of the guide groove.

[0010] Optionally, along the length of the welding strip, the top opening of the guide groove gradually increases from the side closer to the left or right baffle towards the side away.

[0011] In a second aspect, a solder strip preparation apparatus includes any of the aforementioned solder strip control mechanisms, and further includes a solder strip transfer mechanism movably disposed above the control mechanism, a solder strip fixing mechanism disposed on one side of the control mechanism, and a cutter assembly disposed on one side of the fixing mechanism. The fixing mechanism is used to fix the front end of the solder strip supply, the solder strip transfer mechanism is used to grab the front end of the solder strip from the fixing mechanism and pull out a predetermined length of solder strip, and the cutter assembly is used to cut the solder strip on one side of the fixing mechanism. The cut solder strip falls into a solder strip receiving cavity between a first stop and a second stop on the control mechanism.

[0012] Optionally, the front side of the tape fixing mechanism is further provided with a tape pulling mechanism. The tape pulling mechanism includes a tape pressing assembly for fixing the welding strip and a translational drive connected to one end of the tape pressing assembly. The translational drive is used to drive the tape pressing assembly to move closer to or away from the tape fixing mechanism along the length direction of the welding strip.

[0013] Compared with the prior art, the advantages of the control strip mechanism proposed in this utility model are as follows: by utilizing the grooves set on the first stop and the second stop respectively, the size of the strip receiving cavity can be precisely adjusted, the sides of the strip falling into the strip receiving cavity are precisely controlled, and the gap of the strip in the strip receiving cavity can be arbitrarily adjusted to precisely control the position of the strip, so that the finished strip does not deviate, improving the accuracy of the position when it is transferred to the battery cell, and further improving the welding quality of the battery string.

[0014] The present invention proposes a welding strip preparation device that utilizes the aforementioned welding strip control mechanism. When the welding strip is moved through the welding strip transfer mechanism, the welding strip control mechanism adjusts the size of the welding strip receiving cavity according to the diameter of the welding strip. The rear end of the precisely controlled welding strip is then connected to the structure on which the battery cell is laid, together with the welding strip transfer mechanism. This ensures that the welding position of the welding strip laid on the battery cell is accurately aligned with the welding position on the surface of the battery cell, ensuring that the welding strip does not shift during the welding process, thereby significantly improving the welding efficiency and stability of the battery cell. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of a control strip welding mechanism proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the left and right baffles and the driving component in this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the first and second blocking members when they are close together in this utility model;

[0019] Figure 4 This is a right view of the control strip welding mechanism in this utility model;

[0020] Figure 5 This is a schematic diagram of the cam structure in the drive component of this utility model;

[0021] Figure 6 This is a schematic diagram of the structure of a welding strip preparation device proposed in this utility model.

[0022] The attached figures are labeled as follows:

[0023] 1. Left baffle; 11. First stop; 2. Right baffle; 21. Second stop; 3. Drive component; 31. Cam; 311. Second rotating shaft; 312. First rotating shaft; 32. First connecting plate; 33. Second connecting plate; 34. Drive motor; 4. Welding strip receiving cavity; 5. Mounting base; 6. Pin; 7. Welding strip guide plate; 71. Guide groove; 8. Drive plate; 9. Lifting assembly; 10. Welding strip transfer mechanism; 20. Strip fixing mechanism; 30. Cutting assembly; 40. Strip pulling mechanism; 41. Strip pressing assembly; 42. Translation drive component; 50. Welding strip control mechanism. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] In the existing technology, a guide groove with a larger diameter than the welding strip is used before the welding strip and the battery cell are joined. This results in one end of the welding strip not being precisely controlled during the transfer process, which leads to the welding strip end being transferred to the battery cell not being accurately overlapped with the welding position on the battery cell, resulting in poor battery string welding.

[0027] The shortcomings of existing technologies have not been addressed, such as Figures 1-4 As shown, the present application proposes a control mechanism 50 for welding strips, comprising: a left baffle 1 and a right baffle 2 fitted together, and a drive component 3 drivenly connected to the left baffle 1 and the right baffle 2. The left baffle 1 is provided with a first abutment 11, and the right baffle 2 is provided with a second abutment 21. Both the first abutment 11 and the second abutment 21 have grooves, forming a welding strip receiving cavity 4 between the two opposing grooves. Each welding strip receiving cavity 4 accommodates one welding strip. The two opposing grooves respectively limit the diameter of the welding strip on both sides. The drive component 3, connected to the left baffle 1 and the right baffle 2, drives the left baffle 1 and the right baffle 2 to translate, thereby causing the grooves on the first abutment 11 to... The grooves on the first and second stoppers 21 are close to or far apart from each other. When the grooves are close to each other, they abut against the two sides of the diameter of the welding strip, precisely limiting the two sides of the welding strip. When the grooves are far apart, they move the tops of the first stoppers 11 and the second stoppers 21 away from each other, so that the upper part of the welding strip receiving cavity 4 is open, so that the welding strip can be put into the welding strip receiving cavity 4. The width of the welding strip that the welding strip receiving cavity 4 can accommodate can be adjusted by the drive component 3 to accommodate welding strips of different specifications. The first stoppers 11 and the second stoppers 21 are close to the two sides of the diameter of the welding strip, and can maintain a small gap with the diameter of the welding strip, so as to accurately control the position of the welding strip in the welding strip receiving cavity 4 and correctly connect the battery string welding position.

[0028] Specifically, refer to Figure 4 , Figure 5As shown, the driving component 3 includes a driving motor 34 and a cam 31 mounted on the output end of the driving motor 34. The first stop 11 is connected to the first rotating shaft 312 of the cam 31 through the first connecting plate 32. The second stop 21 is connected to the second rotating shaft 311 of the cam 31. The central axes of the first rotating shaft 312 and the second rotating shaft 311 of the cam 31 are parallel and do not overlap. When the driving motor 34 drives the cam 31 to rotate, it can synchronously drive the first connecting plate 32 connected to the first rotating shaft 312 and the second connecting plate 33 connected to the second rotating shaft 311 to move in opposite directions to control the size of the welding strip receiving cavity 4.

[0029] In some embodiments, the control welding strip mechanism 50 further includes a mounting base 5. The left baffle 1 and the right baffle 2 are movably connected to the mounting base 5 via a pin 6. The pin 6 is connected to the left baffle 1 and the right baffle 2 via strip holes that are in the same direction as the movement of the left baffle 1 and the right baffle 2. The driving component 3 is mounted on the mounting base 5 and drives the left baffle 1 and the right baffle 2, causing the left baffle 1 and the right baffle 2 to move in opposite directions along the length of the strip holes under the limiting action of the pin 6. The first abutment 11 and the second abutment 21 provided on the left baffle 1 and the right baffle 2 also move in the same direction. When the first stop 11 and the second stop 21 approach each other, the space of the welding strip receiving cavity 4 between the grooves on the first stop 11 and the second stop 21 gradually decreases, so that the welding strip placed in the welding strip receiving cavity 4 gets closer to the predetermined position. When the first stop 11 and the second stop 21 move away from each other, the welding strip receiving cavity 4 between the first stop 11 and the second stop 21 gradually increases, and the top is opened for the welding strip to be placed into the welding strip receiving cavity 4. The welding strip that is restricted to the predetermined position can accurately overlap with the welding position of the welding strip on the battery cell, thereby improving the welding accuracy of the welding strip and the battery cell.

[0030] In some embodiments, refer to Figure 1 As shown, the mounting base 5 is also provided with a welding strip guide plate 7. The welding strip guide plate 7 is located on one side of the left baffle 1 or the right baffle 2, and the top of the welding strip guide plate 7 is provided with several guide grooves 71 extending along the length of the welding strip. The ends of the guide grooves 71 are connected to the welding strip receiving cavity 4. Several guide grooves 71 correspond to multiple welding strip receiving cavities 4, which respectively accommodate each welding strip. The depth of the guide grooves 71 matches the position of the welding strip receiving cavity. The welding strip placed in the welding strip receiving cavity 4 can also be placed in the guide grooves 71. The guide grooves 71 simultaneously control other parts of the welding strip, so that the position of the welding strip after controlling the welding strip mechanism 50 is accurate.

[0031] In some embodiments, the control strip welding mechanism 50 may further include a lifting component 9 mounted on the mounting base 5. The lifting component 9 is used to drive the mounting base 5 to rise and fall, and simultaneously drive the welding strip guide plate 7, left baffle 1, right baffle 2, and driving component 3 fixed on the mounting base 5 to rise and fall synchronously, so as to connect with the produced welding strip at the top of the control strip welding mechanism 50. The control strip welding mechanism 50 rises to the strip production position and puts the welding strip into the guide groove 71 and the welding strip receiving cavity. After the welding strip on the control strip welding mechanism 50 is transferred to the battery cell laying position, the lifting component 9 controls the mounting base 5 to fall to a low position to avoid the preparation of the next set of welding strips above the control strip welding mechanism 50. The prepared welding strips continuously enter the welding strip receiving cavity 4 and are stacked with the battery cells in sequence to form a battery string, thereby improving the quality of battery string laying and welding quality.

[0032] In addition, preferably, the center of the welding strip receiving cavity 4 is directly opposite the center of the guide groove 71. The welding strip receiving cavity 4 is located at one end of the guide groove 71, close to the station where the battery cells are laid. The center of the welding strip receiving cavity 4 is consistent with the center of the preset position where the welding strip is positioned, so that the welding strip placed in the welding strip receiving cavity is at the same height and the height does not change, thus preventing the welding strip from bending and deforming.

[0033] Preferably, along the length of the welding strip, the top opening of the guide groove gradually increases from the side closer to the left or right baffle to the side away. In accordance with the direction in which the welding strip is moved, the opening is smaller the closer to the left or right baffle. During the movement of the welding strip, it first passes through the side with the larger opening and gradually moves to the side with the smaller opening. This allows for precise control of the position of the welding strip entering the welding strip receiving cavity after passing through the side with the smaller opening, ensuring that one end of the welding strip can fall into the welding strip receiving cavity. The welding strip is never out of control during the transfer process, thus improving the positional accuracy of the welding strip transfer.

[0034] In some embodiments, the first abutment 11 and the second abutment 21 are integrally connected to or detachably connected to the left baffle 1 and the right baffle 2. The integral connection includes processing the first abutment 11 and the second abutment 21, the left baffle 1, and the right baffle 2 into the same processing part. The first abutment 11 has a groove on one side, and the groove has an opening on one side. The left baffle 1 serves as a connecting part for a plurality of first abutment 11s. Similarly, the second abutment 21 is integrally connected to the right baffle 2. The second abutment 21 has a groove on the side opposite to the groove opening on the first abutment 11. The first abutment 11 and the second abutment 21 are alternately arranged, and the grooves of each group of first abutment 11 and second abutment 21 are arranged opposite to each other, corresponding to the control of one welding strip. The detachable connection includes a first stop 11 and a second stop 21, both of which are detachably connected via connecting components. The detachable first stop 11 and second stop 21 can be detachably adjusted relative to the left baffle 1 and the right baffle 2 according to the distribution spacing of each welding strip, flexibly cooperating with different welding strip spacing distributions, compatible with more battery string types, and when changing the welding strip distribution pattern, there is no need to replace the whole system, saving equipment costs.

[0035] On the other hand, such as Figure 6 As shown, this application also proposes a solder ribbon preparation apparatus, which includes any of the aforementioned solder ribbon control mechanisms 50, a solder ribbon transfer mechanism 10 movably disposed above the control mechanism 50, a ribbon fixing mechanism 20 disposed on one side of the control mechanism 50, and a cutter assembly 30 disposed on one side of the fixing mechanism 20. The fixing mechanism 20 is used to fix the front end of the solder ribbon supply, the solder ribbon transfer mechanism 10 is used to grab the front end of the solder ribbon from the fixing mechanism 20 and pull out a predetermined length of solder ribbon, and the cutter assembly 30 is used to cut the front end of the solder ribbon from the fixing mechanism 20. The tail end of the welding strip is cut from the side. The fixing mechanism 20 fixes the front end of the next set of welding strips. The first end of the cut welding strip is fixed by the pulling mechanism 40, and the other end falls into the welding strip receiving cavity 4 between the groove on the first stop 11 and the groove on the second stop 21 on the welding strip control mechanism 50. The left baffle 1 and the right baffle 2 are controlled to move towards each other by the driving component 3, pushing the welding strip in the welding strip receiving cavity 4 towards the middle of the welding strip receiving cavity 4, positioning the welding strip at the predetermined position for bonding with the battery cell, and then bonding the welding strip and the battery cell to improve the welding accuracy and welding quality of the battery string.

[0036] In some embodiments, this application further includes a tape pulling mechanism 40 located in front of the tape fixing mechanism 20. The tape pulling mechanism 40 includes a tape pressing assembly 41 for fixing the welding strip and a translational drive 42 connected to one end of the tape pressing assembly 41. The translational drive 42 is used to drive the tape pressing assembly 41 to move closer to or away from the tape fixing mechanism 20 along the length direction of the welding strip. The tape pulling mechanism 40 is used to cooperate with the tape fixing mechanism 20 to stretch a portion of the welding strip wound from the coil. The stretched welding strip is linear and does not bend, so that the welding strip and the battery cell do not curl when overlapping, and the overlap is precise.

[0037] The present application discloses a welding strip preparation device that precisely aligns with the battery string laying position. The same group of welding strips is jointly managed by a welding strip migration mechanism 10 and a welding strip control mechanism 50. The welding strip migration mechanism 10 grasps the front end of the welding strip, while the welding strip control mechanism 50 controls the tail end of the welding strip. Both the beginning and end of the same group of welding strips are bidirectionally positioned and controlled. The welding strips are precisely controlled before being laid with the battery cells. During the welding strip migration process, the welding strips do not shift in position, thereby improving the overlap accuracy between the welding strips and the battery cells and improving the welding quality of the battery string.

[0038] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A control strip mechanism, characterized in that, The utility model relates to a welding strip conveying device, including: The left baffle (1) and right baffle (2) of fit arrangement are driven to the driving part (3) of connection with left baffle (1) and right baffle (2), be equipped with a plurality of first resistance piece (11) on left baffle (1), be equipped with a plurality of second resistance piece (21) on right baffle (2), the recess of opening opposite is equipped with respectively on first resistance piece (11) and second resistance piece (21), the welding strip accommodating cavity (4) is formed between the two recesses of opposite arrangement, the driving part (3) is used to drive left baffle (1) and right baffle (2) translation, to make the recess on first resistance piece (11) and the recess on second resistance piece (21) each other close or far away.

2. The control strip mechanism of claim 1, wherein, The driving part (3) includes drive motor (34) and the cam (31) of installation in drive motor (34) output, first resistance piece (11) is connected with the first rotary shaft (312) of cam (31) through first connecting plate (32), second resistance piece (21) is connected with the second rotary shaft (311) of cam (31) through second connecting plate (33), the center axis of first rotary shaft (312) and second rotary shaft (311) parallel arrangement.

3. The control strip mechanism of claim 1, wherein, Still including mounting seat (5), left baffle (1) and right baffle (2) are limited to cooperate with mounting seat (5) through pin shaft (6), and driving part (3) is fixedly installed on mounting seat (5).

4. The control strip mechanism of claim 3, wherein, The mounting seat (5) is also provided with a welding strip guide plate (7), which is located on one side of the left baffle (1) or the right baffle (2). The top of the welding strip guide plate (7) is provided with a plurality of guide grooves (71) extending along the length direction of the welding strip. The end of the guide groove (71) is in communication with the welding strip accommodating cavity.

5. The control strip mechanism of claim 4, wherein, It also includes a lifting assembly (9) connected to the mounting seat (5), which is used to drive the mounting seat (5) to rise and fall.

6. The control strip mechanism of claim 4, wherein, The center of the welding strip accommodating cavity (4) is opposite to the center of the guide groove (71).

7. The control strip mechanism of claim 4, wherein, Along the length direction of the welding strip, the top opening of the guide groove (71) gradually increases from the side close to the left baffle (1) or the right baffle (2) to the side away from it.

8. The control strip mechanism of claim 1, wherein, The first resistance piece (11) and the second resistance piece (21) are integrally connected or detachably connected with the left baffle (1) and the right baffle (2).

9. A strip preparation device, characterized in that The control strip mechanism (50) as claimed in any one of claims 1-8, further comprising a strip migration mechanism (10) movably arranged above the control strip mechanism (50), a strip fixing mechanism (20) arranged at one side of the control strip mechanism (50), and a cutter assembly (30) arranged at one side of the strip fixing mechanism (20), the strip fixing mechanism (20) being configured to fix a leading end of a supply of solder strip, the strip migration mechanism (10) being configured to grab the leading end of the solder strip from the strip fixing mechanism (20) and pull out a predetermined length of the solder strip, and the cutter assembly (30) being configured to cut the solder strip at one side of the strip fixing mechanism (20), the cut solder strip falling into a strip receiving cavity between a first stopper (11) and a second stopper (21) of the control strip mechanism (50).

10. The apparatus of claim 9, wherein, The strip fixing mechanism (20) further comprises a strip pulling mechanism (40) arranged at a front side of the strip fixing mechanism (20), the strip pulling mechanism (40) comprising a strip pressing assembly (41) configured to fix the solder strip, and a translation drive (42) connected to one end of the strip pressing assembly (41), the translation drive (42) being configured to drive the strip pressing assembly (41) to move towards or away from the strip fixing mechanism (20) along a length direction of the solder strip.

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