Pressing device for ultra-thin tab copper strip

Abstract

The utility model belongs to the technical field of pole lug copper strip processing, and particularly relates to a pressing device of an ultra-thin pole lug copper strip, which comprises a lower die holder and an upper die holder which correspond to each other, copper strip passing grooves are formed in the two sides of the short edge of the lower die base, a pressing groove is formed between the copper strip passing grooves, and the pressing groove is sequentially provided with a heating chamber and an adjusting assembly from the front end copper strip passing groove to the rear end copper strip passing groove. The adjusting assembly comprises a supporting frame, a clamping block and a first air cylinder. A front pressing roller, a pressing strip and a rear pressing roller are sequentially arranged at the bottom of the upper die base corresponding to the pressing groove; according to the pole lug copper strip pressing device, the positions of the clamping blocks can be flexibly adjusted through driving of the first air cylinder, so that accurate adjustment of the width of the pressing groove is achieved, arc treatment at the front ends of the clamping blocks is matched, a copper strip is guided to the position between the clamping blocks, and the width is limited; by means of the design, the device can meet the effect of meeting the pressing requirements of tab copper strips of different width specifications.

Description

Technical Field

[0001] This utility model belongs to the field of electrode copper strip production technology, specifically relating to a pressing device for ultra-thin electrode copper strip. Background Technology

[0002] Copper tabs are typically used as the positive and negative terminals of batteries (such as lithium batteries) to connect to external circuits. The pressing process of copper tabs is an important step in the manufacturing or processing of copper tabs. Through pressing, the soft copper strip material can be formed into specific shapes and structures, such as increasing the thickness and width, to meet the needs of battery design.

[0003] In existing electrode tab copper strip pressing processes, the winding devices at both ends drive the copper strip to move, first heating the copper strip, then extruding it through a pressure device. The dimensions (thickness and width) of the electrode tab copper strip are controlled by the gaps between the pressure devices. However, the gaps cannot be adjusted simultaneously, requiring secondary processing. This leads to a decrease in the heat of the copper strip during subsequent processing, reducing the pressing effect, resulting in poor forming quality and low efficiency. Furthermore, the equipment integration is low, requiring multiple connected devices for pressing, thus occupying a large area. Therefore, we propose a pressing device for ultra-thin electrode tab copper strips. Utility Model Content

[0004] The purpose of this invention is to provide a pressing device for ultra-thin tab copper strips, in order to solve the problem that the current gap groove adjustment cannot meet the requirements at the same time, and secondary processing is required. This leads to a decrease in the heat of the copper strip during the subsequent processing, resulting in a reduced pressing effect, poor forming effect, and low efficiency. At the same time, the equipment integration is not high, and multiple connected devices are needed during pressing, which occupies a large area and presents technical problems.

[0005] To solve the above-mentioned technical problems, this utility model provides a pressing device for ultra-thin tab copper strip, including: a corresponding lower die base and an upper die base;

[0006] The lower mold base has copper strip passage grooves on both sides of the shorter side, and a pressing groove is formed between the copper strip passage grooves. The pressing groove is provided with a heating chamber and an adjustment component in sequence from the front copper strip passage groove to the rear copper strip passage groove.

[0007] The adjustment assembly includes a support frame, a clamping block, and a first cylinder. The support frame has a "T" shaped cross-section. The clamping block has two rectangular cross-sections with one open end. The open ends correspond to and are adapted to the two shorter sides of the support frame. The first cylinder is installed on the back of the clamping block away from the open end.

[0008] The bottom of the upper mold base is provided with a front pressure roller, a pressure strip and a rear pressure roller in sequence corresponding to the pressing groove. The front pressure roller and the rear pressure roller are located at the front end and rear end of the symmetrical clamping block, and the pressure strip is located at the clamping center point of the two clamping blocks.

[0009] Furthermore, the lower mold base is fixed on the worktable, while the upper mold base is installed on the lifting mechanism. The lifting mechanism drives the upper mold base to rise and fall, thereby docking with the lower mold base.

[0010] Furthermore, the copper strip has a mating groove at the top of the lower mold base around the periphery of the groove, and a matching mating block is provided at the bottom of the upper mold base corresponding to the mating groove.

[0011] Furthermore, both ends of the heating chamber are connected to the copper strip at the front end via grooves and support frames.

[0012] Furthermore, the clamping block has a rounded chamfered corner design facing the heating chamber end.

[0013] Furthermore, the front pressure roller, pressure strip, and rear pressure roller are all connected to the output end of the second cylinder installed at the top of the upper mold base.

[0014] Furthermore, the front pressure roller and the rear pressure roller are rotatably connected inside the rotating seat, and the rotating seat is fixed to the output end of the second cylinder.

[0015] The beneficial effects of this utility model are:

[0016] 1. The adjustment component includes a support frame, a clamping block, and a first cylinder. Driven by the first cylinder, the clamping block can be flexibly adjusted to achieve precise adjustment of the pressing groove width. With the arc treatment at the front end of the clamping block, the copper strip is guided between the clamping blocks and the width is limited. This design enables the device to adapt to the pressing requirements of copper strips with different width specifications.

[0017] 2. The front pressure roller, pressure bar, and rear pressure roller on the upper die base, driven by the second cylinder, uniformly press the heated copper strip. The thickness of the pressing is controlled by adjusting the height of the front pressure roller. Then, the copper strip is thinned by the pressure bar. The copper strip material that extends outward during the extrusion process is flattened by the rear pressure roller, realizing thin pressing operation and ensuring the uniformity and consistency of the pressing effect. The rotating connection design of the front and rear pressure rollers, together with the copper strip conveying and winding devices at both ends, allows the copper strip to pass smoothly during the pressing process, avoiding problems such as jamming or damage.

[0018] 3. By setting a heating chamber and adjustment components on the lower die base, the copper strip can be heated before pressing. The adjustment components can adjust the size of the pressing groove (such as thickness and width) as needed, realizing one-time pressing and forming of the copper strip. This avoids the problem of secondary processing required in traditional methods and improves the pressing effect and forming efficiency.

[0019] 4. The pressing device of this utility model integrates multiple functions such as heating, pressing and size adjustment into one unit. Compared with the traditional method which requires multiple connected devices, it greatly reduces the footprint of the equipment and improves the integration and production efficiency of the equipment.

[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the lower mold base structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the upper mold base structure of this utility model;

[0025] Figure 4 This is a schematic diagram of the adjustment component structure of this utility model.

[0026] In the diagram: 1. Lower mold base; 11. Copper strip passage groove; 12. Pressing groove; 13. Heating chamber; 14. Butt joint groove; 15. Butt joint block;

[0027] 2. Upper mold base; 21. Front pressure roller; 22. Pressure strip; 23. Rear pressure roller; 24. Second cylinder; 25. Rotating seat;

[0028] 3. Adjustment component; 31. Support frame; 32. Clamping block; 33. First cylinder. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0030] Example:

[0031] like Figures 1 to 4 As shown, a pressing device for ultra-thin tab copper strip includes: a corresponding lower die holder 1 and an upper die holder 2;

[0032] Copper strip passage grooves 11 are provided on both sides of the shorter side of the lower mold base 1, and pressing grooves 12 are provided between the copper strip passage grooves 11. A heating chamber 13 and an adjustment component 3 are provided sequentially from the front end copper strip passage groove 11 to the rear end copper strip passage groove 11 in the pressing groove 12.

[0033] The adjustment assembly 3 includes a support frame 31, a clamping block 32, and a first cylinder 33. The support frame 31 has a "T" shaped cross-section. The clamping block 32 has two rectangular cross-sections with one open end, and the open ends correspond to and fit the two shorter sides of the support frame 31. The first cylinder 33 is installed on the back of the clamping block 32 away from the open end. The driving of the first cylinder 33 enables the clamping block 32 to move flexibly on the support frame 31, thereby accurately adjusting the width of the pressing groove 12, improving the adaptability of the device, enabling it to handle copper strips of different widths, and ensuring the stability and accuracy of the copper strip during the pressing process.

[0034] The upper mold base 2 has a front pressure roller 21, a pressure strip 22 and a rear pressure roller 23 arranged in sequence at the bottom of the corresponding pressing groove 12. The front pressure roller 21 and the rear pressure roller 23 are located at the front and rear ends of the symmetrical clamping blocks 32, and the pressure strip 22 is located at the clamping center point of the two clamping blocks 32. Driven by the second cylinder 24, these components can uniformly press the heated copper strip. The initial rolling of the front pressure roller 21 rolls the copper strip open and sends it into the pressing area. The pressure strip 22 further thins the copper strip, while the rear pressure roller 23 is responsible for flattening the pressed copper strip to ensure the uniformity and consistency of the pressing effect.

[0035] like Figure 1-3 As shown, the lower mold base 1 is fixed on the worktable, while the upper mold base 2 is installed on the lifting mechanism. The lifting mechanism drives the upper mold base 2 to rise and fall, thereby docking with the lower mold base 1. The copper strip passes through the outer periphery of the groove 11. The top of the lower mold base 1 has a docking groove 14. Corresponding to the docking groove 14, the bottom of the upper mold base 2 has a matching docking block 15. The docking groove 14 and the docking block 15 are docked to ensure the stability of the docking.

[0036] like Figure 2 As shown, the two ends of the heating chamber 13 are connected to the front copper strip through the groove 11 and the support frame 31, respectively.

[0037] like Figure 2 As shown, the clamping block 32 has a rounded chamfer at the end facing the heating chamber 13. The rounded treatment at the front end of the clamping block 32 not only helps to guide the copper strip smoothly into the clamping blocks 32 and control the thickness of the copper strip (which is still in a softened state after heating), but also reduces the friction and damage of the copper strip when it passes through, thus improving the pressing quality.

[0038] like Figure 1 and 3 As shown, the front pressure roller 21, pressure strip 22 and rear pressure roller 23 are all connected to the output end of the second cylinder 24 installed at the top of the upper mold base 2.

[0039] like Figure 3 As shown, the front pressure roller 21 and the rear pressure roller 23 are rotatably connected in the rotating seat 25, so that they can rotate smoothly during the pressing process. The rotating seat 25 is fixed to the output end of the second cylinder 24.

[0040] In summary, the workflow is as follows: the copper strip is fed into the heating chamber 13 through the front copper strip groove 11 for preheating;

[0041] Then adjust the width of the pressing groove 12 by adjusting component 3;

[0042] Next, the lifting mechanism drives the upper mold base 2 to descend, so that the front pressure roller 21, pressure bar 22 and rear pressure roller 23 come into contact with the copper strip and apply pressure. With the help of the copper strip conveying and winding devices at both ends, the softened copper strip comes into contact with the space between the front pressure roller 21, pressure bar 22 and rear pressure roller 23 and the support frame 31 in sequence. The front pressure roller 21 initially rolls the strip. After entering the clamping block 32, it is restricted on both sides and further rolled by the pressure bar 22. Since the pressure bar 22 cannot completely press the copper strip, it is finally rolled flat with the help of the rear pressure roller 23.

[0043] It should be noted that, since the rear pressure roller 23 is at the very end (towards the outside), the temperature of the copper strip drops (which can be achieved with the help of external cooling equipment), so the rolling action of the rear pressure roller 23 will not cause deformation of the copper strip.

[0044] The copper strip conveying and winding devices at both ends are conventional technologies in the field, such as feeders / winders.

[0045] All the devices selected in this application are general standard parts or components known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0046] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of 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.

[0047] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0048] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A pressing device for ultra-thin tab copper strips, characterized in that, include: The corresponding lower mold base (1) and upper mold base (2); The lower mold base (1) has copper strip passage grooves (11) on both sides of its shorter side, and a pressing groove (12) is provided between the copper strip passage grooves (11). The pressing groove (12) is provided with a heating chamber (13) and an adjustment component (3) in sequence from the front copper strip passage groove (11) to the rear copper strip passage groove (11). The adjustment component (3) includes a support frame (31), a clamping block (32) and a first cylinder (33). The support frame (31) has a "T" shaped cross-section. The clamping block (32) has two rectangular cross-sections with one end open. The open end corresponds to the two shorter sides of the support frame (31) and is adapted to it. The first cylinder (33) is installed on the back of the clamping block (32) away from the open end. The upper mold base (2) is provided with a front pressure roller (21), a pressure strip (22) and a rear pressure roller (23) in sequence on the corresponding pressing groove (12). The front pressure roller (21) and the rear pressure roller (23) are located at the front end and rear end of the symmetrical clamping block (32), and the pressure strip (22) is located at the clamping center point of the two clamping blocks (32).

2. The pressing device for ultra-thin tab copper strip as described in claim 1, characterized in that, The lower mold base (1) is fixed on the workbench, while the upper mold base (2) is installed on the lifting mechanism. The upper mold base (2) is lifted and lowered by the lifting mechanism to connect with the lower mold base (1).

3. The pressing device for ultra-thin electrode copper strip as described in claim 1, characterized in that, The copper strip passes through the outer periphery of the lower mold base (1) with a mating groove (14) at the top, and a matching mating block (15) is provided at the bottom of the upper mold base (2) corresponding to the mating groove (14).

4. The pressing device for ultra-thin electrode copper strip as described in claim 1, characterized in that, The two ends of the heating chamber (13) are respectively connected to the copper strip at the front end through the groove (11) and the support frame (31).

5. The pressing device for ultra-thin tab copper strip as described in claim 1, characterized in that, The clamping block (32) has a rounded chamfered end facing the heating chamber (13).

6. The pressing device for ultra-thin tab copper strip as described in claim 1, characterized in that, The front pressure roller (21), pressure bar (22) and rear pressure roller (23) are all connected to the output end of the second cylinder (24) installed at the top of the upper mold base (2).

7. The pressing device for ultra-thin tab copper strip as described in claim 6, characterized in that, The front pressure roller (21) and the rear pressure roller (23) are rotatably connected in the rotating seat (25), and the rotating seat (25) is fixed to the output end of the second cylinder (24).

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