Equipment for quickly blanking copper-aluminum flexible connecting piece of power battery

Abstract

The utility model relates to the technical field of power battery processing, and discloses a device for quickly blanking a copper-aluminum flexible connecting piece of a power battery, which comprises an uncoiling mechanism, a feeding mechanism, a slitting actuating mechanism and a cutting actuating mechanism. According to the equipment for quickly blanking the copper-aluminum flexible connecting piece of the power battery, the uncoiling mechanism, the feeding mechanism, the slitting executing mechanism and the cutting executing mechanism are matched to act, so that the slitting width of a material strip, the slitting length on a material belt, the non-slitting length on the material belt and the length of a material section can be accurately controlled, and the forming requirements of workpieces with various sizes are met; and a plurality of material strips can be blanked at the same time by controlling the slitting execution mechanism to cut or not to form interval sections on the material strips, so that subsequent processing is facilitated, and the processing efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of power battery processing technology, and in particular to a device for rapid unloading of copper-aluminum flexible connectors for power batteries. Background Technology

[0002] Currently, mainstream new energy vehicles typically use batteries as their power source. To minimize battery vibration and fatigue during the vehicle's lifespan, flexible electrical connectors made of multiple layers of copper and aluminum foil are usually used between battery modules.

[0003] In the processing of flexible connectors, the existing process involves cutting one piece at a time, welding one piece, stamping one piece, and then cutting another piece. This process is inefficient and cannot meet customer production capacity requirements. Therefore, cutting multiple flexible connectors at once to complete multiple welding and stamping processes simultaneously is of great significance for improving efficiency.

[0004] However, to achieve simultaneous cutting of multiple flexible connectors from metal strips after punching, each connector must be accurately cut while retaining gaps (uncut). These gaps allow the cut strips to remain connected, facilitating simultaneous cutting. Existing punching equipment cannot meet these requirements, necessitating further optimization of the equipment and process. Utility Model Content

[0005] The purpose of this invention is to provide a device for rapid feeding of copper-aluminum flexible connectors for power batteries, so as to solve the problems mentioned in the background art and meet the requirements of high-efficiency production.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A device for rapid feeding of copper-aluminum flexible connectors for power batteries includes an uncoiling mechanism, a feeding mechanism, a slitting mechanism, and a cutting mechanism, wherein:

[0008] The unwinding mechanism is used to unwind uncut rolls into strips, which then pass through the feeding mechanism, the slitting mechanism, and the cutting mechanism in sequence.

[0009] The feeding mechanism is used to drive the material belt to feed;

[0010] The slitting actuator is used to slit the strip into several strips and form unslit intervals on the strip, with the intervals remaining connected to the ends of each strip.

[0011] The cutting actuator is used to cut the strip into several segments, and the cutting position is located on each interval segment, so that the two ends of the segments retain a portion of the interval segment.

[0012] As an alternative, the feeding mechanism includes vertically arranged upper and lower pressure rollers, with the material belt passing between the upper and lower pressure rollers;

[0013] The lower pressure roller is driven to rotate by the first driving component, and the rotation speed of the lower pressure roller is adjustable to control the feed speed of the material belt;

[0014] The upper pressure roller is driven by the second drive unit to move closer to or away from the lower pressure roller to control the feeding or stopping of the material belt.

[0015] As an alternative, the slitting actuator includes an upper slitting roller and a lower slitting roller arranged vertically, with the material strip passing between the upper slitting roller and the lower slitting roller;

[0016] The lower slitting roller is driven to rotate by a third drive component;

[0017] The upper slitting roller is driven by the fourth drive unit to move closer to or further away from the lower slitting roller to control whether the material strip is cut or not.

[0018] As an alternative, the upper slitting roller is provided with several first protrusions that are axially spaced apart, and the lower slitting roller is provided with second protrusions that are staggered with each of the first protrusions. The first protrusions and the second protrusions cooperate to achieve the slitting action.

[0019] As an alternative, rubber portions are provided between adjacent first protrusions and between adjacent second protrusions, and the rubber portions are used to cooperate with the corresponding first or second protrusions to press the material strip.

[0020] As an alternative, the upper slitting roller is provided with vertically movable support plates at both ends, and the upper surface of the support plates is provided with a pressing member that presses the support plates downward and a lifting member that pulls the support plates upward.

[0021] When the slitting actuator cuts the strip, the top pressing component overcomes the force of the lifting component and drives the pallet to move downward, so that the upper slitting roller moves closer to the lower slitting roller.

[0022] When the slitting actuator does not cut the strip, the force of the top pressing component fails, and the lifting component drives the pallet to move upward, causing the upper slitting roller to move away from the lower slitting roller.

[0023] As an alternative, the cutting actuator includes an upper cutting blade and a lower cutting blade arranged vertically. The slit strip passes between the upper and lower cutting blades. The upper cutting blade is driven by a fifth drive unit to move closer to or away from the lower cutting blade to control whether the strip is cut or not.

[0024] As an optional solution, a distance sensor is installed between the unwinding mechanism and the feeding mechanism. The distance sensor is used to measure the amount of sag of the material strip between the unwinding mechanism and the feeding mechanism.

[0025] As an optional solution, a guide assembly is provided between the slitting actuator and the cutting actuator to limit the material strip.

[0026] The beneficial effects of this utility model are:

[0027] This equipment for rapid unloading of copper-aluminum flexible connectors for power batteries uses an uncoiling mechanism, a feeding mechanism, a slitting mechanism, and a cutting mechanism to work together to achieve precise control over the slitting width of the strip, the slitting length on the strip, the unslitting length on the strip, and the length of the segment. This meets the forming requirements of workpieces of various sizes. Furthermore, by controlling whether the slitting mechanism cuts or not, and creating intervals on the strip, multiple strips can be unloaded simultaneously, facilitating subsequent processing and greatly improving processing efficiency. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of the device for rapid unloading of copper-aluminum flexible connectors for power batteries provided in this embodiment of the utility model;

[0029] Figure 2 This is a schematic diagram of the structure of the cutting execution mechanism involved in this utility model embodiment;

[0030] Figure 3 This is a schematic diagram of the material strip being cut and slit in an embodiment of this utility model.

[0031] In the attached image:

[0032] 1. Unblocking mechanism;

[0033] 2. Feeding mechanism; 21. Upper pressure roller; 22. Lower pressure roller; 23. Second drive component;

[0034] 3. Slitting actuator; 31. Upper slitting roller; 311. First protrusion; 32. Lower slitting roller; 321. Second protrusion; 33. Third drive component; 34. Fourth drive component; 35. Rubber part; 36. Support plate; 37. Pressing component; 38. Lifting component;

[0035] 4. Cut-off actuator; 41. Upper cut-off blade; 42. Lower cut-off blade;

[0036] 5. Distance sensor;

[0037] 6. Guiding components;

[0038] 7. PLC control panel;

[0039] 100. Material strip; 101. Material bar; 102. Interval section; 103. Material segment. Detailed Implementation

[0040] 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 present 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, not the entire structure.

[0041] In the description of this utility model, 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 utility model based on the specific circumstances.

[0042] 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.

[0043] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to 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 this utility model.

[0044] Furthermore, the terms "first" and "second" are merely used to distinguish between different terms in description and do not have any special meaning.

[0045] Please see Figures 1 to 3 As shown, this embodiment provides a device for rapid unloading of copper-aluminum flexible connectors for power batteries, including an uncoiling mechanism 1, a feeding mechanism 2, a slitting actuator 3, and a cutting actuator 4, wherein:

[0046] The unwinding mechanism 1 is used to unwind the uncut roll into a strip 100, and the strip 100 passes through the feeding mechanism 2, the slitting execution mechanism 3 and the cutting execution mechanism 4 in sequence.

[0047] Feeding mechanism 2 is used to drive the material belt 100 to feed;

[0048] The slitting actuator 3 is used to slit the strip 100 into several strips 101 and form unslit intervals 102 on the strip 100. The intervals 102 are connected to the ends of each strip 101.

[0049] The cutting actuator 4 is used to cut the material strip 100 into several material segments 103, and the cutting position is located on each interval segment 102, so that the two ends of the material segment 103 retain part of the interval segment 102.

[0050] Therefore, by coordinating the actions of the uncoiling mechanism 1, the feeding mechanism 2, the slitting execution mechanism 3, and the cutting execution mechanism 4, precise control can be achieved over the slitting width of the strip 101, the slitting length and the unslitting length on the strip 100, and the length of the segment 103, thus meeting the forming requirements of workpieces of various sizes. In addition, by controlling whether the slitting execution mechanism 3 cuts or not, and forming interval segments 102 on the strip 100, multiple strips 101 can be fed simultaneously, which facilitates subsequent processing and greatly improves processing efficiency.

[0051] Optionally, the feeding mechanism 2 includes an upper pressure roller 21 and a lower pressure roller 22 arranged vertically. The material belt 100 passes between the upper pressure roller 21 and the lower pressure roller 22. The lower pressure roller 22 is driven to rotate by a first driving member, and the rotation speed of the lower pressure roller 22 is adjustable to control the feeding speed of the material belt 100. The upper pressure roller 21 is driven by a second driving member 23 to move closer to or away from the lower pressure roller 22 to control the feeding or stopping of the material belt 100.

[0052] The first driving component here is preferably a servo motor, which converts the feed length of the material strip 100 into the rotation angle of the lower pressure roller 22, thereby accurately controlling the feed amount of the material strip 100.

[0053] The second driving component 23 here is preferably a cylinder, which drives the upper pressure roller 21 and the lower pressure roller 22 to cooperate and clamp the material belt 100, forming a static friction force to drive the material belt 100 to feed.

[0054] Optionally, the slitting actuator 3 includes an upper slitting roller 31 and a lower slitting roller 32 arranged vertically. The material strip 100 passes between the upper slitting roller 31 and the lower slitting roller 32. The lower slitting roller 32 is driven to rotate by a third drive member 33. The upper slitting roller 31 is driven by a fourth drive member 34 to move closer to or away from the lower slitting roller 32 to control whether the material strip 100 is cut or not.

[0055] The third drive unit 33 here is preferably a servo motor. Whether in the slitting or non-slitting state, the lower slitting roller 32 can feed the material belt 100°, and the feeding distance is controlled by the running angular velocity of the servo motor.

[0056] The fourth driving component 34 here is preferably a cylinder, which drives the upper slitting roller 31 and the lower slitting roller 32 to cooperate in squeezing the material strip 100 to realize the slitting action. Furthermore, by controlling the upper slitting roller 31 to move up and down, the unslitting length and the slitting length on the material strip 100 can be controlled.

[0057] Optionally, the upper slitting roller 31 is provided with a plurality of first protrusions 311 distributed axially at intervals, and the lower slitting roller 32 is provided with second protrusions 321 arranged in a staggered manner with each of the first protrusions 311. The first protrusions 311 and the second protrusions 321 cooperate to realize the slitting action.

[0058] The staggered arrangement of the first protrusion 311 and the second protrusion 321 forms multiple cutting sections, which meets the requirement of cutting the strip 100 into strips 101 of the target width.

[0059] Furthermore, rubber portions 35 are respectively provided between adjacent first protrusions 311 and between adjacent second protrusions 321. The rubber portions 35 are used to cooperate with the corresponding first protrusions 311 or second protrusions 321 to press the material strip 101.

[0060] The rubber part 35 is injection molded on the upper slitting roller 31 and the lower slitting roller 32. The diameter of the rubber part 35 is slightly smaller than the outer edge of the corresponding first protrusion 311 and second protrusion 321. The rubber part 35 and the corresponding first protrusion 311 and second protrusion 321 are in concave-convex fit to ensure the slitting effect.

[0061] Optionally, the upper slitting roller 31 is provided with vertically movable support plates 36 at both ends. The upper surface of the support plate 36 is provided with a pressing member 37 that presses the support plate 36 downward and a lifting member 38 that pulls the support plate 36 upward. When the slitting actuator 3 cuts the material strip 100, the pressing member 37 overcomes the force of the lifting member 38 and drives the support plate 36 downward, so that the upper slitting roller 31 moves closer to the lower slitting roller 32. When the slitting actuator 3 does not cut the material strip 100, the force of the pressing member 37 is ineffective, and the lifting member 38 drives the support plate 36 upward, so that the upper slitting roller 31 moves away from the lower slitting roller 32.

[0062] In this embodiment, the top pressing member 37 is exemplified by a cam assembly driven by a cylinder, and the lifting member 38 is exemplified by a tension spring, thereby realizing the up and down movement of the upper slitting roller 31.

[0063] Optionally, the cutting actuator 4 includes an upper cutting blade 41 and a lower cutting blade 42 arranged vertically. The slit strip 100 passes between the upper cutting blade 41 and the lower cutting blade 42. The upper cutting blade 41 is driven by a fifth driving member to move closer to or away from the lower cutting blade 42 to control whether the strip 100 is cut or not.

[0064] The fifth driving component here is preferably a motor that drives the crankshaft to move the cutting blade 41 up and down periodically to achieve the cutting function.

[0065] Optionally, a distance sensor 5 is provided between the unwinding mechanism 1 and the feeding mechanism 2. The distance sensor 5 is used to measure the sag of the strip 100 between the unwinding mechanism 1 and the feeding mechanism 2.

[0066] The distance sensor 5 works in conjunction with the unwinding motor of the unwinding mechanism 1 to feed the material strip 100 at a suitable speed, preventing the unwinding speed from being too slow and causing inaccurate slitting dimensions, and also preventing the unwinding speed from being too fast and causing the material strip 100 to entangle or accumulate.

[0067] Optionally, a guide component 6 is provided between the slitting actuator 3 and the cutting actuator 4. The guide component 6 is used to limit the material strip 100 to constrain the feeding posture of the material strip 100 after slitting, avoid skewing, and ensure that the material strip 100 is perpendicular to the upper cutting blade 41 and the lower cutting blade 42 of the cutting device, thereby ensuring the cutting effect.

[0068] In addition, the equipment for rapid unloading of copper-aluminum flexible connectors for power batteries also includes a PLC control panel 7, which can input the cutting length, non-cutting length, number of slices, cutting length, etc., and can control various cylinders, servo motors, etc., to meet the requirements of cutting and unloading.

[0069] The specific processing steps are as follows:

[0070] 1) Replace the upper slitting roller 31 and lower slitting roller 32 of the corresponding slitting actuator 3 according to the width of the target product;

[0071] 2) Place the material roll (here, copper and aluminum foil roll) onto the bracket of the unwinding mechanism 1 and secure it with a chuck;

[0072] 3) Input the following parameters on the PLC control panel 7: cutting length, increase length (piece length difference), interval length (non-cutting length), cutting quantity (number of pieces cut on the strip 100), and feeding length;

[0073] 4) Drive the upper pressure roller 21 and the upper slitting roller 31 to move upward, and pass the unwound material strip 100 through the distance sensor 5, the feeding mechanism 2, the slitting execution mechanism 3, the guide assembly 6 and the cutting execution mechanism 4 in sequence;

[0074] 5) Drive the upper pressure roller 21 and the upper slitting roller 31 downwards, so that the feeding mechanism 2 and the slitting execution mechanism 3 respectively press the material strip 100;

[0075] 6) Start the PLC control panel 7 by pressing the start button. The feeding mechanism 2 will start to convey the material belt 100 forward, and the slitting execution mechanism 3 will start to slit the material belt 100 into strips 101 of the target width. When the slitting length is reached, the upper slitting roller 31 will be raised to achieve no slitting. When the no-slitting length is reached, the upper slitting roller 31 will be lowered to continue slitting.

[0076] 7) The slit strip 100 is in a state of one section slit and one section unslit (interval section 102). The guide assembly 6 straightens the strip 100 and sends it to the cutting actuator 4.

[0077] 8) When the interval section 102 of the material strip 100 reaches the cutting actuator 4, the upper cutting blade 41 is controlled to move downward, and it cooperates with the lower cutting blade 42 to form a shearing force to cut the material strip 100. The cutting position is preferably the middle position of the interval section 102.

[0078] 9) The slit and cut material segment 103 is the target cutting length, see details. Figure 3 The material segment 103 retains a portion of the spacer segment 102 at both ends, and the middle part of the material segment 103 is the cut strip 101. The cut material segment 103 falls onto the worktable behind the cutting actuator 4.

[0079] 10) The feeding mechanism 2 continues to operate and performs the next cutting based on whether there is an increase (difference in piece length) between each material segment 103;

[0080] 11) Once the set number of cuts is reached, the PLC control panel 7 will issue a stop command, all mechanisms will pause their operation, and the material segment 103 will fall onto the worktable behind the cutting actuator 4 in the cutting sequence, waiting to be picked up and wrapped.

[0081] Based on the aforementioned equipment for rapid cutting of copper-aluminum flexible connectors for power batteries, this embodiment also provides a method for rapid cutting of copper-aluminum flexible connectors for power batteries, which includes the following steps:

[0082] Step 1: Cut the strip 100 into several strips 101, and form uncut intervals 102 on the strip 100. The intervals 102 are connected to the ends of each strip 101.

[0083] Step 2: Cut the strip 100 into several segments 103, with the cutting position located on each interval segment 102, so that the two ends of the segments 103 retain part of the interval segment 102, so that multiple strips 101 can be fed at the same time.

[0084] Therefore, the method for rapid cutting of copper-aluminum flexible connectors for power batteries can quickly complete the cutting process and allow multiple cut strips 101 to be cut simultaneously, thereby greatly improving the efficiency of subsequent welding and stamping processes.

[0085] In summary, the equipment for rapid feeding of copper-aluminum flexible connectors for power batteries has the following advantages:

[0086] ① Multiple mechanisms work together to achieve precise control of cutting width, length, and uncut length, and also enable the equipment to adapt to various sizes and materials of strips 100;

[0087] ② By forming a spacer segment 102 during slitting and retaining part of the spacer segment 102 during cutting, the formed material segment 103 enables multiple material strips 101 to be fed at the same time, changing the traditional process of feeding one piece at a time.

[0088] ③ The PLC control panel 7 can intelligently control the conveying speed, slitting or non-slitting, and cutting frequency of the material belt 100 according to the required size, ensuring that the material segment 103 meets the requirements, reducing manual input, increasing the degree of automation, and improving product consistency.

[0089] ④ It improves the versatility of equipment and processing efficiency, effectively addressing the issues of short R&D cycles and frequent demands for power batteries.

[0090] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A device for rapid feeding of copper-aluminum flexible connectors for power batteries, characterized in that, It includes an unwinding mechanism (1), a feeding mechanism (2), a slitting execution mechanism (3), and a cutting execution mechanism (4), wherein: The unwinding mechanism (1) is used to unwind the uncut roll into a strip (100), and the strip (100) passes through the feeding mechanism (2), the slitting execution mechanism (3) and the cutting execution mechanism (4) in sequence; The feeding mechanism (2) is used to drive the material belt (100) to feed; The cutting actuator (3) is used to cut the strip (100) into several strips (101) and form uncut intervals (102) on the strip (100), wherein the intervals (102) are connected to the ends of each strip (101). The cutting actuator (4) is used to cut the strip (100) into several segments (103), and the cutting position is located on each of the interval segments (102), so that the two ends of the segment (103) retain part of the interval segment (102).

2. The equipment for rapid unloading of copper-aluminum flexible connectors for power batteries according to claim 1, characterized in that, The feeding mechanism (2) includes an upper pressure roller (21) and a lower pressure roller (22) arranged vertically, and the material belt (100) passes between the upper pressure roller (21) and the lower pressure roller (22); The lower pressure roller (22) is driven to rotate by the first driving member, and the rotation speed of the lower pressure roller (22) is adjustable to control the feeding speed of the material belt (100); The upper pressure roller (21) is driven by the second drive member (23) to move closer to or away from the lower pressure roller (22) to control the feeding or stopping of the material belt (100).

3. The equipment for rapid unloading of copper-aluminum flexible connectors for power batteries according to claim 1, characterized in that, The slitting actuator (3) includes an upper slitting roller (31) and a lower slitting roller (32) arranged vertically, and the material strip (100) passes between the upper slitting roller (31) and the lower slitting roller (32); The lower slitting roller (32) is driven to rotate by the third driving member (33); The upper slitting roller (31) is driven by the fourth drive member (34) to move closer to or away from the lower slitting roller (32) to control whether the strip (100) is cut or not.

4. The equipment for rapid unloading of copper-aluminum flexible connectors for power batteries according to claim 3, characterized in that, The upper slitting roller (31) is provided with a plurality of first protrusions (311) spaced apart axially, and the lower slitting roller (32) is provided with second protrusions (321) arranged in a staggered manner with each of the first protrusions (311). The first protrusions (311) and the second protrusions (321) cooperate to realize the slitting action.

5. The equipment for rapid unloading of copper-aluminum flexible connectors for power batteries according to claim 4, characterized in that, A rubber portion (35) is provided between adjacent first protrusions (311) and between adjacent second protrusions (321), and the rubber portion (35) is used to cooperate with the corresponding first protrusion (311) or second protrusion (321) to press the material strip (101).

6. The equipment for rapid unloading of copper-aluminum flexible connectors for power batteries according to claim 3, characterized in that, The upper slitting roller (31) is provided with vertically movable support plates (36) at both ends. The upper surface of the support plate (36) is provided with a pressing member (37) that presses the support plate (36) downward and a lifting member (38) that pulls the support plate (36) upward. When the cutting actuator (3) cuts the strip (100), the top pressing member (37) overcomes the force of the lifting member (38) and drives the pallet (36) to move downward, so that the upper cutting roller (31) moves closer to the lower cutting roller (32); When the slitting actuator (3) performs non-cutting on the material strip (100), the force of the top pressing member (37) is ineffective, and the lifting member (38) drives the pallet (36) to move upward, so that the upper slitting roller (31) moves away from the lower slitting roller (32).

7. The equipment for rapid unloading of copper-aluminum flexible connectors for power batteries according to claim 1, characterized in that, The cutting actuator (4) includes an upper cutting blade (41) and a lower cutting blade (42) arranged vertically. The cut strip (100) passes between the upper cutting blade (41) and the lower cutting blade (42). The upper cutting blade (41) is driven by a fifth driving member to move closer to or away from the lower cutting blade (42) to control whether the strip (100) is cut or not.

8. The equipment for rapid unloading of copper-aluminum flexible connectors for power batteries according to claim 1, characterized in that, A distance sensor (5) is provided between the unwinding mechanism (1) and the feeding mechanism (2). The distance sensor (5) is used to measure the sag of the strip (100) between the unwinding mechanism (1) and the feeding mechanism (2).

9. The equipment for rapid unloading of copper-aluminum flexible connectors for power batteries according to claim 1, characterized in that, A guide component (6) is provided between the slitting actuator (3) and the cutting actuator (4), and the guide component (6) is used to limit the material strip (100).

Images