Coil changing and belt connecting device

Abstract

The utility model provides a roll changing and tape splicing device which comprises a base, a tape splicing platform, a cutting mechanism and a feeding mechanism, wherein the tape splicing platform, the cutting mechanism and the feeding mechanism are arranged on the base. The tape splicing platform comprises a first platform and a second platform which can be close to or away from each other in the preset direction, the first platform is used for bearing a first material tape for unwinding a first roll material, the second platform is used for bearing a second material tape for unwinding a second roll material, and the first platform and the second platform each comprise a base plate. The pressing part and the driving part are arranged on the two sides, in the thickness direction, of the base plate correspondingly, and the pressing part can be driven by the driving part to be close to the base plate and press the first material belt or the second material belt; the cutting mechanism is used for trimming the receiving end of the compressed first material belt and the receiving end of the compressed second material belt; the feeding mechanism can supply an adhesive tape section to the tape splicing platform so as to splice and joint the splicing end of the first material tape and the splicing end of the second material tape which are subjected to slicing treatment. According to the roll changing and belt connecting device, the accuracy and the high efficiency of belt connecting can be improved, and the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery winding, in particular to a winding and splicing device. Background Art

[0002] Currently, the penetration of new energy vehicles (NEVs) in the market continues to increase, encompassing pure electric, hybrid, and extended-range models. These vehicles utilize different battery types, including soft-pack, cylindrical, and prismatic cells. The battery production process is complex, encompassing numerous steps, including slurrying, coating, rolling, die-cutting, lamination (or winding), assembly, injection, and formation. The coating, rolling, die-cutting, and lamination (or winding) steps involve the replacement of electrode coils.

[0003] Traditional electrode coil replacement methods include manual and automatic replacement. Manual replacement requires high employee skills, otherwise it can easily cause electrode overlap, resulting in broken material and causing abnormal battery voltage differences. Automatic replacement does not require manual operation and can avoid overlap problems, but its popularity is low, it carries the risk of tape breakage, and it also has high investment costs. Therefore, traditional electrode coil replacement methods carry the risks of tape overlap and breakage, and are costly, which is not conducive to improving production line capacity. Utility Model Content

[0004] In view of this, the present invention aims to provide a roll-changing and tape-splicing device, which can improve the accuracy and efficiency of tape splicing.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the utility model is achieved as follows:

[0006] A roll-changing and tape-splicing device comprises a base, a tape-splicing platform, a cutting mechanism and a feeding mechanism arranged on the base;

[0007] The tape splicing platform includes a first platform and a second platform that can move closer to or farther from each other along a preset direction, the first platform being used to receive a first tape unwound from a first roll of material, and the second platform being used to receive a second tape unwound from a second roll of material, and both the first platform and the second platform include a substrate, and a pressing portion and a driving portion respectively provided on both sides of the substrate in a thickness direction, the pressing portion being driven by the driving portion to approach the substrate and press the first tape or the second tape;

[0008] The cutting mechanism is used to perform trimming processing on the compressed splicing end of the first material strip and the splicing end of the second material strip;

[0009] The feeding mechanism can supply a tape segment to the tape splicing platform to adhere and join the splicing end of the first material tape and the splicing end of the second material tape after the slicing process.

[0010] Furthermore, the pressing portion includes a pressing block disposed above the base plate; the driving portion includes a first cylinder disposed below the base plate, a cylinder rod of the first cylinder passes through the base plate and is connected to the pressing block.

[0011] Furthermore, the number of the first cylinders is two and they are spaced apart and arranged on the base plate.

[0012] Furthermore, the cutting mechanism includes a first cutter assembly arranged corresponding to the first platform and a second cutter assembly arranged corresponding to the second platform; the first cutter assembly and the second cutter assembly both include a mounting seat provided on the base, a cutter rotatably provided on the mounting seat, and an elastic member provided between the mounting seat and the cutter.

[0013] Furthermore, the cutter is mounted on the mounting seat via a rotating shaft; and / or the elastic member is a torsion spring.

[0014] Furthermore, the base is provided with a slide rail arranged along the preset direction, and the first platform and the second platform are both slidably arranged on the slide rail.

[0015] Furthermore, a first sliding seat and a second sliding seat are provided on the slide rail, the first platform is provided on the first sliding seat, and the second platform is provided on the second sliding seat.

[0016] Furthermore, the tape splicing platform includes a first driving unit and a second driving unit, the base plate of the first platform is connected to the driving end of the first driving unit, and the base plate of the second platform is connected to the driving end of the second driving unit.

[0017] Furthermore, it also includes a first dust suction part arranged under the first platform, and a second dust suction part arranged under the second platform, the first dust suction part is used to remove dust during the trimming process of the first material strip, and the second dust suction part is used to remove dust during the trimming process of the second material strip; and / or, the feeding mechanism includes a tape roll for supplying the tape segment, and a guide roller for guiding the tape roll for unloading.

[0018] Furthermore, it also includes a first unwinding assembly and a second unwinding assembly arranged on both sides of the tape splicing platform along a preset direction, the first unwinding assembly is used to unwind the first roll material, and the second unwinding assembly is used to unwind the second roll material; and / or, it also includes a protective plate arranged under the base and the tape splicing platform.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] The reel-changing and tape-splicing device described in the present invention drives the corresponding pressing parts to press the first material tape and the second material tape through each driving part, and trims the splicing ends of the first material tape and the second material tape through the cutting mechanism. Subsequently, when the first platform and the second platform are close to each other, the splicing ends of the first material tape and the second material tape can have a good docking effect, which is beneficial for the tape segment to bond the first material tape and the second material tape. This can improve the accuracy and efficiency of splicing the first material tape and the second material tape, reduce the risk of splicing overlap and tape breakage problems, and reduce costs, thereby making the reel-changing and tape-splicing device have a good use effect.

[0021] In addition, the use of a first cylinder and a pressing block has a simple structure and is conducive to cost reduction. The first cylinder is two arranged at intervals on the base plate, which can improve the uniformity of the pressing block, thereby improving the pressing effect on the first material strip and the second material strip. The setting of the elastic member can store energy when using the cutter to cut the material strip, and release energy after the cutting operation is completed to assist the cutter to reset, which helps to reduce the difficulty of operation. The provision of a slide rail is conducive to improving the sliding stability of the first platform and the second platform. The coordinated use of the first dust suction part and the second dust suction part can avoid dust pollution that affects the safety of the finished battery product. The guide roller can guide the discharge of the tape roll to prevent the tape from skewing during the pulling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 This is a schematic diagram of the overall structure of the roll-changing and tape-splicing device according to an embodiment of the present utility model;

[0024] Figure 2 This is a structural diagram of the first material strip and the second material strip according to an embodiment of the present utility model when they are docked;

[0025] Figure 3 This is a structural diagram of the belt splicing platform according to an embodiment of the present utility model;

[0026] Figure 4 This is a structural diagram of the first cutter assembly according to an embodiment of the present utility model;

[0027] Description of reference numerals:

[0028] 11. Base;

[0029] 12a, first platform; 12b, second platform; 121, substrate; 122, pressing portion; 123, driving portion;

[0030] 13a, first cutter assembly; 13b, second cutter assembly; 131, mounting seat; 132, cutter; 133, elastic member; 134, rotating shaft;

[0031] 21. First material strip; 22. Second material strip;

[0032] 31. Slide rail; 32. First sliding seat; 33. Second sliding seat; 34. First drive unit; 35. Second drive unit;

[0033] 41. Adhesive tape roll; 42. Guide roller;

[0034] 51. First dust collection unit; 52. Second dust collection unit;

[0035] 61. Guard plate. DETAILED DESCRIPTION

[0036] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0037] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," and "outer" appear to indicate orientation or positional relationships, these are based on the orientation or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, if terms such as "first" and "second" appear, they are used solely for descriptive purposes and should not be construed as indicating or implying relative importance.

[0038] Furthermore, in the description of this utility model, unless otherwise explicitly defined, the terms "mounted," "connected," "connection," and "connector" should be interpreted broadly. For example, they can refer to fixed, removable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0039] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0040] The present embodiment relates to a roll-changing and tape-splicing device, which helps to solve the problems in traditional technologies of prone to tape overlap during manual operation and high cost and high risk of tape breakage when using an automatic tape-splicing device.

[0041] In terms of overall structure, Figures 1 to 4As shown, the roll-changing and tape-splicing device of this embodiment includes a base 11 , and a tape-splicing platform, a cutting mechanism, and a feeding mechanism arranged on the base 11 .

[0042] Among them, the tape splicing platform includes a first platform 12a and a second platform 12b that can approach or move away from each other along a preset direction. The first platform 12a is used to receive the first material tape 21 for unwinding the first roll of material, and the second platform 12b is used to receive the second material tape 22 for unwinding the second roll of material. The first platform 12a and the second platform 12b both include a substrate 121, and a clamping part 122 and a driving part 123 respectively arranged on both sides of the substrate 121 in the thickness direction. Driven by the driving part 123, the clamping part 122 can approach the substrate 121 and clamp the first material tape 21 or the second material tape 22.

[0043] Furthermore, the cutting mechanism is used to trim the compressed splice ends of the first material strip 21 and the second material strip 22. The feeding mechanism can supply tape segments to the splicing platform to bond and join the splice ends of the first material strip 21 and the second material strip 22 after the slicing process.

[0044] At this time, the above arrangement can ensure that the joint ends of the first material tape 21 and the second material tape 22 have a good docking effect, which is beneficial for the tape segment to bond the first material tape 21 and the second material tape 22, thereby improving the accuracy and efficiency of the joint between the first material tape 21 and the second material tape 22, reducing the risk of joint overlap and breakage problems, and reducing costs.

[0045] Based on the above overall introduction, specifically, in this embodiment, during specific implementation, the connecting end of the first material belt 21 and the connecting end of the second material belt 22 refer to the ends of the first material belt 21 and the second material belt 22 that are connected to each other.

[0046] At the same time, as a preferred embodiment, the roll-changing and splicing device also includes a first unwinding assembly and a second unwinding assembly arranged on both sides of the splicing platform along a preset direction. The first unwinding assembly is used to unwind the first roll of material, and the second unwinding assembly is used to unwind the second roll of material.

[0047] In this embodiment, as a preferred implementation form, see Figure 1 and Figure 2 As shown, the pressing portion 122 includes a pressing block disposed above the base plate 121. Meanwhile, the driving portion 123 includes a first cylinder disposed below the base plate 121, a cylinder rod of the first cylinder passing through the base plate 121 and connected to the pressing block.

[0048] Here, the first cylinder and the pressing block are used, which makes the structure simple and helps reduce costs. In specific implementation, the first cylinder can be a common cylinder device.

[0049] Moreover, in this embodiment, as a preferred implementation form, there are two first cylinders spaced apart and arranged on the base plate 121 , so as to improve the compaction uniformity of the compaction block, thereby improving the compaction effect on the first material strip 21 and the second material strip 22 .

[0050] In the specific structure, the length dimension of the above-mentioned pressing block is preferably set larger than the width dimension of the first material belt 21 or the second material belt 22, and the spacing dimension between the cylinder rods of the two first cylinders is also preferably larger than the width dimension of the first material belt 21 or the second material belt 22, so as to avoid damage to the first material belt 21 and the second material belt 22 due to insufficient width dimension.

[0051] In addition, in this embodiment, as a preferred implementation form, see Figure 1 and Figure 4 As shown, the cutting mechanism includes a first cutter assembly 13a arranged corresponding to the first platform 12a and a second cutter assembly 13b arranged corresponding to the second platform 12b. Furthermore, the first cutter assembly 13a and the second cutter assembly 13b each include a mounting base 131 disposed on the base 11, a cutter 132 rotatably mounted on the mounting base 131, and an elastic member 133 disposed between the mounting base 131 and the cutter 132.

[0052] It is understood that the arrangement of the elastic member 133 allows for energy storage when the cutter 132 is used to cut the material strip, and releases the energy after the cutting operation to assist in resetting the cutter 132, thereby reducing operational difficulty. Furthermore, the cutter 132 in the first cutter assembly 13a is arranged parallel to the side edge of the substrate 121 in the first platform 12a that faces the second platform 12b, thereby enhancing the cutting effect. Similarly, the cutter 132 in the second cutter assembly 13b is also arranged parallel to the side edge of the substrate 121 in the second platform 12b that faces the first platform 12a.

[0053] In specific implementation, in this embodiment, as a preferred embodiment, the cutter 132 is mounted on the mounting seat 131 via a rotating shaft 134, and the elastic member 133 is a torsion spring. Moreover, the torsion spring can be sleeved on the rotating shaft 134, with one end of the torsion spring connected to the mounting seat 131 and the other end of the torsion spring connected to the rotating shaft 134 or the cutter 132. It should be noted that since the structures of the first cutter assembly 13a and the second cutter assembly 13b are basically the same, Figure 4 Only the specific structure of the first cutter assembly 13a is shown.

[0054] In addition, in this embodiment, as a preferred implementation form, see Figure 3As shown, the base 11 is provided with a slide rail 31 arranged along a preset direction, and the first platform 12a and the second platform 12b are both slidably arranged on the slide rail 31. Therefore, the sliding direction of the first platform 12a and the second platform 12b can be guided by the slide rail 31, which is conducive to improving the sliding stability of the first platform 12a and the second platform 12b.

[0055] Secondly, in this embodiment, as a preferred implementation form, a first sliding seat 32 and a second sliding seat 33 are provided on the slide rail 31, the first platform 12a is provided on the first sliding seat 32, and the second platform 12b is provided on the second sliding seat 33, so as to facilitate the overall preparation of the device.

[0056] In this embodiment, as a preferred implementation form, see Figure 3 As shown, the tape splicing platform includes a first driving unit 34 and a second driving unit 35 , the base plate 121 of the first platform 12 a is connected to the driving end of the first driving unit 34 , and the base plate 121 of the second platform 12 b is connected to the driving end of the second driving unit 35 .

[0057] The first driving unit 34 and the second driving unit 35 here can be selected from driving devices well known to those skilled in the art, such as a second cylinder that is the same as the first cylinder.

[0058] In addition, in this embodiment, as a preferred embodiment, as shown in the figure, the reel-changing and splicing device of this embodiment further includes a first dust collection unit 51 disposed below the first platform 12a, and a second dust collection unit 52 disposed below the second platform 12b. The first dust collection unit 51 is used to remove dust during the trimming process of the first material strip 21, and the second dust collection unit 52 is used to remove dust during the trimming process of the second material strip 22.

[0059] The coordinated use of the first and second suction units 51, 52 prevents dust contamination that could affect the safety of finished batteries. Specifically, each of the first and second suction units 51, 52 includes a collection box and a negative pressure adsorption element within the box. The negative pressure adsorption element, for example, can be a pipe with multiple adsorption holes. In addition to collecting dust adsorbed by the negative pressure adsorption element, the collection box also collects waste generated during trimming of the first or second strips 21, 22.

[0060] At the same time, in this embodiment, as a preferred implementation form, continue to refer to Figure 1 As shown, the feeding mechanism includes a tape roll 41 for supplying a tape segment, and a guide roller 42 for guiding the tape roll 41 to discharge the tape. The guide roller 42 can guide the discharge of the tape roll 41 to prevent the tape from tilting during the pulling process and avoid waste.

[0061] Furthermore, in this embodiment, as a preferred implementation form, the roll-changing and tape-splicing device of this embodiment further includes a guard plate 61 provided below the base 11 and the tape-splicing platform to protect the entire device.

[0062] It is worth mentioning that when this embodiment is implemented, the first roll of material can be a new electrode roll, and the second roll of material can be an old electrode roll. The preset direction specifically refers to the direction in which the first material tape 21 and the second material tape 22 are docked, and the relevant structural parts not mentioned in the roll-changing and splicing device of this embodiment can all refer to the various structures in the roll-changing and splicing equipment familiar to technical personnel in this field.

[0063] The reel-changing and splicing device of this embodiment drives the corresponding pressing parts 122 to press the first material tape 21 and the second material tape 22 through each driving part 123, and trims the splicing ends of the first material tape 21 and the second material tape 22 through the cutting mechanism. Subsequently, when the first platform 12a and the second platform 12b are close to each other, the splicing ends of the first material tape 21 and the second material tape 22 can have a good docking effect, which is beneficial for the tape segment to bond the first material tape 21 and the second material tape 22. This can improve the accuracy and efficiency of the splicing of the first material tape 21 and the second material tape 22, reduce the risks of splicing overlap and tape breakage, and reduce costs, thereby making the reel-changing and splicing device have a good use effect.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A tape changing and splicing device, characterized in that: It includes a base, and a tape splicing platform, a cutting mechanism and a feeding mechanism arranged on the base; The tape splicing platform includes a first platform and a second platform that can move closer to or farther from each other along a preset direction, the first platform being used to receive a first tape unwound from a first roll of material, and the second platform being used to receive a second tape unwound from a second roll of material, and both the first platform and the second platform include a substrate, and a pressing portion and a driving portion respectively provided on both sides of the substrate in a thickness direction, the pressing portion being driven by the driving portion to approach the substrate and press the first tape or the second tape; The cutting mechanism is used to perform trimming processing on the compressed splicing end of the first material strip and the splicing end of the second material strip; The feeding mechanism can supply a tape segment to the tape splicing platform to adhere and join the splicing end of the first material tape and the splicing end of the second material tape after the slicing process.

2. The tape-changing and splicing device according to claim 1, characterized in that: The pressing portion includes a pressing block provided above the base plate; The driving part includes a first cylinder disposed below the base plate, wherein a cylinder rod of the first cylinder passes through the base plate and is connected to the pressing block.

3. The tape-changing and splicing device according to claim 2, characterized in that: The number of the first cylinders is two and they are spaced apart and arranged on the base plate.

4. The tape-changing and splicing device according to claim 1, characterized in that: The cutting mechanism includes a first cutter assembly arranged corresponding to the first platform and a second cutter assembly arranged corresponding to the second platform; The first cutter assembly and the second cutter assembly both include a mounting seat arranged on the base, a cutter rotatably arranged on the mounting seat, and an elastic member arranged between the mounting seat and the cutter.

5. The tape-changing and splicing device according to claim 4, characterized in that: The cutter is mounted on the mounting seat via a rotating shaft; and / or the elastic member is a torsion spring.

6. The tape-changing and splicing device according to claim 1, characterized in that: The base is provided with a slide rail arranged along the preset direction, and the first platform and the second platform are both slidably arranged on the slide rail.

7. The tape-changing and splicing device according to claim 6, characterized in that: A first sliding seat and a second sliding seat are provided on the slide rail, the first platform is provided on the first sliding seat, and the second platform is provided on the second sliding seat.

8. The tape-changing and splicing device according to claim 6, characterized in that: The tape splicing platform includes a first driving unit and a second driving unit. The base plate of the first platform is connected to the driving end of the first driving unit, and the base plate of the second platform is connected to the driving end of the second driving unit.

9. The tape-changing and splicing device according to claim 1, characterized in that: It also includes a first dust collection unit provided below the first platform, and a second dust collection unit provided below the second platform, wherein the first dust collection unit is used to remove dust generated during the trimming process of the first material strip, and the second dust collection unit is used to remove dust generated during the trimming process of the second material strip; and / or, The feeding mechanism includes a tape roll for supplying the tape segment and a guide roller for guiding the tape roll for unloading.

10. The roll-changing and splicing device according to any one of claims 1 to 9, characterized in that: It also includes a first unwinding assembly and a second unwinding assembly respectively arranged on both sides of the tape splicing platform along a preset direction, the first unwinding assembly is used to unwind the first coil, and the second unwinding assembly is used to unwind the second coil; and / or, It also includes a guard plate arranged below the base and the belt connecting platform.

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