Unwinding waste collection device and unwinding apparatus

Abstract

Disclosed in the present application are an unwinding waste collection device and an unwinding apparatus. The unwinding waste collection device comprises a splicing support plate I and a splicing support plate II which are arranged sequentially along a conforming material conveying path; a cutting mechanism for separating non-conforming material from conforming material when the non-conforming material appears in unwound material; and a first conveying mechanism, which is mounted between the splicing support plate I and the splicing support plate II and used for conveying the conforming material from the splicing support plate I to the splicing support plate II, and conveying the non-conforming material from the splicing support plate I to a waste collection bin along a non-conforming material conveying path after the cutting mechanism separates the non-conforming material from the conforming material. In the present application, the non-conforming material can be directly removed during an unwinding process, thereby preventing the non-conforming material from flowing into the next process and reducing the rework problem caused by the non-conforming material; in addition, the labor intensity of workers is reduced, thereby improving the equipment utilization rate.

Description

A waste collection device and unwinding equipment for unwinding.

[0001] This application claims priority to the patent application filed on December 19, 2024, with application number 2024231370377 and entitled "An unwinding waste collection device and unwinding equipment". Technical Field

[0002] This application belongs to the technical field of unwinding equipment, specifically relating to an unwinding waste collection device and unwinding equipment. Background Technology

[0003] Lithium-ion batteries, as a high-energy-density power source, are widely used due to their advantages such as high operating voltage, light weight, large specific energy, low self-discharge rate, long cycle life, no memory effect, and no environmental pollution. As one of the key components of lithium-ion batteries, the electrode (especially the negative electrode) has a crucial impact on the electrical performance of lithium-ion batteries.

[0004] In existing technologies, coating machines generally do not stop to remove waste materials during normal production. Therefore, waste electrode sheets are usually wound into electrode rolls and flow into the rolling process, causing the rolling process to frequently stop for manual rewinding and waste material removal, which greatly consumes employee working time. At the same time, re-splitting the tape during the rolling process can easily cause poor splicing, which can lead to tape breakage problems in subsequent operation and generate a large amount of waste material. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this application provides an unwinding waste collection device and unwinding equipment that can directly remove unqualified materials during the unwinding process, preventing unqualified materials from flowing into the next process, reducing rework problems caused by unqualified materials, and at the same time reducing the labor intensity of employees and improving equipment utilization.

[0006] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0007] In a first aspect, an unwinding waste collection device is provided, comprising: a first receiving support plate and a second receiving support plate arranged sequentially along a qualified material conveying path; a cutting mechanism for separating unqualified material from qualified material when unqualified material appears in the unwinding material; and a first conveying mechanism installed between the first receiving support plate and the second receiving support plate for conveying qualified material from the first receiving support plate to the second receiving support plate, and after the cutting mechanism separates the unqualified material from the qualified material, conveying the unqualified material from the first receiving support plate to the waste collection box along the unqualified material conveying path.

[0008] The above technical solution, by setting up a first tape-connecting support plate, a second tape-connecting support plate, a cutting mechanism, and a first conveying mechanism, can directly remove unqualified materials during the unwinding process, preventing unqualified materials from flowing into the next process, reducing rework problems caused by unqualified materials, and at the same time reducing the labor intensity of employees and improving equipment utilization.

[0009] Furthermore, the cutting mechanism includes: a pressure rod three disposed on the first connecting support plate; a pressure rod one, a pressure rod two and a sliding cutter disposed on the second connecting support plate, wherein the sliding cutter is located between the pressure rod one and the pressure rod two.

[0010] The above technical solution, by setting up pressure bar one, pressure bar two, pressure bar three and sliding cutter, can ensure simple and quick operation and neat and standardized cuts when cutting unqualified materials, avoid material waste caused by non-standard cutting, and improve operating efficiency.

[0011] Furthermore, the first conveying mechanism includes: a driving roller and a driven roller mounted on the frame; a conveyor belt connected between the driving roller and the driven roller; and a first drive mechanism for driving the first conveying mechanism to switch between a qualified material conveying path and an unqualified material conveying path.

[0012] The above technical solution, by setting up an active roller, a driven roller, a conveyor belt, and a first drive mechanism, achieves effective switching between the conveying paths of qualified and unqualified materials while conveying materials. The conveying and switching process can be semi-automated or fully automated, effectively reducing the labor intensity of employees and improving switching efficiency.

[0013] Furthermore, the first conveying mechanism further includes a first gripping mechanism for gripping unqualified materials when the first conveying mechanism switches from a qualified material conveying path to an unqualified material conveying path, so that the unqualified materials move along with the conveyor belt.

[0014] The above technical solution, by setting a first gripping mechanism to attach unqualified materials to the first conveying mechanism, ensures that when the first conveying mechanism switches from the qualified material conveying path to the unqualified material conveying path, the unqualified materials can switch directions synchronously with the first conveying mechanism, preventing the unqualified materials from detaching from the first conveying mechanism and causing an accident.

[0015] Furthermore, the first driving mechanism includes a first reversing cylinder; the first gripping mechanism includes a plurality of first negative pressure adsorption holes disposed on the conveyor belt and connected to the negative pressure mechanism.

[0016] The above technical solution uses a first reversing cylinder to switch paths and a first negative pressure adsorption hole connected to a negative pressure mechanism to adsorb unqualified materials onto the conveyor belt. It provides a specific method for path switching and material following direction change, realizing semi-automatic control during the recycling and switching of unqualified materials, reducing the labor intensity of workers and improving work efficiency.

[0017] Furthermore, it also includes a second conveying mechanism installed on the non-conforming material conveying path. The first conveying mechanism conveys the non-conforming material from the receiving support plate to the second conveying mechanism along the non-conforming material conveying path; the second conveying mechanism conveys the non-conforming material to the waste collection box.

[0018] The above technical solution can accurately transport unqualified materials to the waste collection box by setting a second conveying mechanism, and evenly spread the unqualified materials in the waste collection box, thereby improving the utilization rate of the waste collection box.

[0019] Furthermore, the second conveying mechanism includes: a second driving roller and a second driven roller mounted on the frame; a second conveyor belt connected between the second driving roller and the second driven roller; and a second drive mechanism for driving the second conveying mechanism to swing within a set range so as to evenly spread the defective material in the waste collection box.

[0020] The above technical solution achieves semi-automatic control during the recycling of unqualified materials by setting up a second active roller, a second driven roller, a second conveyor belt, and a second drive mechanism, which reduces the labor intensity of workers and improves work efficiency.

[0021] Furthermore, the second conveying mechanism also includes a second gripping mechanism for gripping unqualified materials and causing the unqualified materials to move along the conveyor belt.

[0022] The above technical solution, by setting a second gripping mechanism, ensures that the unqualified materials can swing synchronously with the conveyor belt, realizing semi-automatic control during the recycling of unqualified materials, reducing the labor intensity of workers and improving work efficiency.

[0023] Furthermore, the second driving mechanism includes a second reversing cylinder; the second gripping mechanism includes a plurality of second negative pressure adsorption holes disposed on the second conveyor belt and connected to the negative pressure mechanism.

[0024] The above technical solution, by setting a second reversing cylinder to drive the second conveying mechanism, and by setting a second negative pressure adsorption hole connected to the negative pressure mechanism to adsorb unqualified materials onto the second conveyor belt, provides a specific method for collecting unqualified materials, realizes semi-automatic control during the recycling of unqualified materials, reduces the labor intensity of workers, and improves work efficiency.

[0025] In a second aspect, an unwinding device is provided, the unwinding device being equipped with the unwinding waste collection device described in the first aspect.

[0026] The above technical solution, by setting up an unwinding waste collection device on the unwinding equipment, can directly remove unqualified materials during the unwinding process, preventing unqualified materials from flowing into the next process, reducing rework problems caused by unqualified materials, and at the same time reducing the labor intensity of employees and improving equipment utilization.

[0027] Compared with the prior art, the beneficial effects achieved by this application are as follows: This application provides a first and a second connecting support plate arranged sequentially along the qualified material conveying path; a cutting mechanism for separating unqualified materials from qualified materials when unqualified materials appear in the unwound material; a first conveying mechanism installed between the first and second connecting support plates for conveying qualified materials from the first connecting support plate to the second connecting support plate, and after the cutting mechanism separates the unqualified materials from the qualified materials, the unqualified materials are conveyed from the first connecting support plate to the first conveying mechanism along the unqualified material conveying path; the second conveying mechanism is used to convey the unqualified materials to the waste collection box; this application can directly remove unqualified materials during the unwinding process, avoiding unqualified materials flowing into the next process, reducing rework problems caused by unqualified materials, and at the same time, reducing the labor intensity of employees and improving equipment utilization. Attached Figure Description

[0028] Figure 1 is a schematic diagram of the working principle of an unwinding waste collection device provided in an embodiment of this application;

[0029] Figure 2 is a magnified view of a portion of Figure 1;

[0030] In the diagram: 1. Unwinding material; 11. Qualified electrode sheet; 12. Waste electrode sheet; 21. Splicing support plate one; 22. Splicing support plate two; 31. Pressure bar one; 32. Sliding cutter; 33. Pressure bar two; 34. Pressure bar three; 41. Driven roller one; 42. Conveyor belt one; 43. Driven roller one; 51. Driven roller two; 52. Conveyor belt two; 53. Driven roller two; 6. Waste collection box. Detailed Implementation

[0031] The present application will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and should not be used to limit the scope of protection of the present application.

[0032] Example 1

[0033] As shown in Figures 1 and 2, an unwinding waste collection device includes: a first connecting support plate 21 and a second connecting support plate 22 arranged sequentially along a qualified material conveying path; a cutting mechanism for separating unqualified material from qualified material when unqualified material appears in the unwinding material; a first conveying mechanism installed between the first connecting support plate 21 and the second connecting support plate 22 for conveying qualified material from the first connecting support plate 21 to the second connecting support plate 22, and after the cutting mechanism separates the unqualified material from the qualified material, conveying the unqualified material from the first connecting support plate 21 to the second conveying mechanism along the unqualified material conveying path; and a second conveying mechanism for conveying the unqualified material to a waste collection box 6.

[0034] The cutting mechanism includes: a pressure rod 34 disposed on the first tape support plate 21; a pressure rod 31, a pressure rod 33 and a sliding cutter 32 disposed on the second tape support plate 22, the sliding cutter 32 being located between the pressure rod 31 and the pressure rod 33.

[0035] The first conveying mechanism includes: a driving roller 41 and a driven roller 43 mounted on a frame; a conveyor belt 42 connected between the driving roller 41 and the driven roller 43; and a first drive mechanism for switching the first conveying mechanism between a qualified material conveying path and an unqualified material conveying path.

[0036] The first conveying mechanism further includes a first gripping mechanism for gripping unqualified materials when the first conveying mechanism switches from a qualified material conveying path to an unqualified material conveying path, so that the unqualified materials move along with the conveyor belt 42.

[0037] The first driving mechanism includes a first reversing cylinder; the first gripping mechanism includes a plurality of first negative pressure adsorption holes disposed on the conveyor belt 42 and connected to the negative pressure mechanism.

[0038] The second conveying mechanism includes: a second active roller 51 and a second driven roller 53 mounted on the frame; a second conveyor belt 52 connected between the second active roller 51 and the second driven roller 53; and a second drive mechanism for driving the second conveying mechanism to swing within a set range so as to evenly spread the non-conforming material in the waste collection box 6.

[0039] The second conveying mechanism also includes a second gripping mechanism for gripping non-conforming materials and causing the non-conforming materials to move along with the conveyor belt 252.

[0040] The second drive mechanism includes a second reversing cylinder; the second gripping mechanism includes a plurality of second negative pressure adsorption holes disposed on the conveyor belt 52 and connected to the negative pressure mechanism.

[0041] The following section uses the process of collecting waste electrode sheets (unqualified materials) when unwound material 1 appears in lithium battery production to further explain the working principle of this application.

[0042] When waste electrode sheets appear in the unwound material 1, the pressure rod 1 31 and pressure rod 2 33 press the electrode sheets downwards onto the tape-connecting support plate 2 22, and the pressure rod 3 34 presses the electrode sheets downwards onto the tape-connecting support plate 1 21. The sliding cutter 32 is activated to separate the waste electrode sheets 12 (unqualified material) from the qualified electrode sheets 11 (qualified material). Then, the pressure rod 1 31, pressure rod 2 33 and pressure rod 3 34 are raised upwards. At the same time, the negative pressure system is activated to adsorb the waste electrode sheets 12 onto the conveyor belt 1 42. Driven by the first reversing cylinder, the first conveying mechanism rotates downward by 30° around the active roller 41, realizing the docking of the driven roller 43 with the active roller 51 (i.e., the first conveying mechanism switches from the qualified material conveying path to the unqualified material conveying path). At the same time, the active roller 41 starts and conveys the waste electrode 12 to the conveyor belt 52 through the conveyor belt 42. Under the action of negative pressure, the waste electrode 12 is adsorbed on the surface of the conveyor belt 52. The active roller 51 starts and drives the conveyor belt 52 and the driven roller 53 to continue to convey the waste electrode 12 forward. Subsequently, driven by the second reversing cylinder, the second conveying mechanism swings around the active roller 51 as the swing center with a swing amplitude of 60°, thereby evenly spreading the waste electrode 12 in the waste collection box 6, completing the waste collection process.

[0043] After the waste material is collected, the first conveying mechanism rotates upward by 30° under the drive of the first reversing cylinder to connect the driven roller 43 with the tape-connecting support plate 22. The electrode path returns to the qualified material conveying path. After manually pulling the qualified electrode 11 to the pressure bar 33, the pressure bar 34 is pressed first, the negative pressure is disconnected, and the electrode is released from the conveyor belt 42. After the electrode is pulled in at the sliding cutter 32, the pressure bar 33 is pressed down, and then the tape is applied and the belt is manually spliced. After the belt splicing is completed, the pressure bars 31, 33, and 34 are released, and the roller press starts to operate normally.

[0044] In this application, the first active roller 41 and the second active roller 51 are fixed on the machine base and connected to the servo motor, so that they can run at the same speed as the roller press and provide power for electrode conveying.

[0045] Compared to the original manual waste removal method (where the electrode sheets are rewinding to the unwinding turret before manual waste removal can be performed), this application enables rapid switching between qualified and scrapped electrode sheets, and completes waste collection on the rolling equipment. This simplifies employee operation steps, greatly reduces waste removal time, electrode sheet cutting and splicing time, and the risk of electrode sheet breakage. At the same time, it reduces the labor intensity of employees and improves equipment uptime.

[0046] Example 2

[0047] The only difference between this embodiment and Embodiment 1 is that this embodiment does not include a second conveying mechanism. The first conveying mechanism directly conveys the unqualified material from the connecting support plate 21 to the waste collection box 6 along the unqualified material conveying path.

[0048] Example 3

[0049] Based on the unwinding waste collection device described in Embodiment 1 and Embodiment 2, this embodiment provides an unwinding device or a rolling device, wherein the unwinding device or rolling device is equipped with the unwinding waste collection device described in Embodiment 1 or Embodiment 2.

[0050] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A device for collecting unwinding waste, characterized in that, include: Connecting support plate one (21) and connecting support plate two (22) are installed sequentially along the qualified material conveying path; A cutting mechanism used to separate non-conforming materials from conforming materials when non-conforming materials are found in the unwound material; Installed between the first receiving support plate (21) and the second receiving support plate (22), it is used to transport qualified materials from the first receiving support plate (21) to the second receiving support plate (22), and after the cutting mechanism separates the unqualified materials from the qualified materials, it transports the unqualified materials from the first receiving support plate (21) to the waste collection box (6) along the unqualified material conveying path.

2. The unwinding waste collection device according to claim 1, characterized in that, The cutting mechanism includes: The pressure bar three (34) is set on the tape support plate one (21); A pressure bar first (31), a pressure bar second (33), and a sliding cutter (32) are provided on the second (22) of the tape support plate, wherein the sliding cutter (32) is located between the pressure bar first (31) and the pressure bar second (33).

3. The unwinding waste collection device according to claim 1, characterized in that, The first conveying mechanism includes: The driving roller 1 (41) and the driven roller 1 (43) are mounted on the frame; A conveyor belt (42) connecting the drive roller (41) and the driven roller (43); A first drive mechanism for switching the first conveying mechanism between a qualified material conveying path and an unqualified material conveying path.

4. The unwinding waste collection device according to claim 3, characterized in that, The first conveying mechanism further includes: a first gripping mechanism for gripping unqualified materials when the first conveying mechanism switches from a qualified material conveying path to an unqualified material conveying path, so that the unqualified materials follow the conveyor belt (42) to move.

5. The unwinding waste collection device according to claim 4, characterized in that, The first driving mechanism includes a first reversing cylinder; the first gripping mechanism includes a plurality of first negative pressure adsorption holes disposed on the conveyor belt (42) and connected to the negative pressure mechanism.

6. The unwinding waste collection device according to claim 1, characterized in that, It also includes a second conveying mechanism installed on the path for conveying non-conforming materials. The first conveying mechanism conveys the non-conforming material from the connecting support plate (21) to the second conveying mechanism along the non-conforming material conveying path; The second conveying mechanism transports the defective materials to the waste collection box (6).

7. The unwinding waste collection device according to claim 6, characterized in that, The second conveying mechanism includes: The driving roller 2 (51) and the driven roller 2 (53) are mounted on the frame; Conveyor belt 2 (52) is connected between drive roller 2 (51) and driven roller 2 (53); The second drive mechanism is used to drive the second conveying mechanism to swing within a set range so as to evenly spread the non-conforming material in the waste collection box (6).

8. The unwinding waste collection device according to claim 7, characterized in that, The second conveying mechanism further includes a second gripping mechanism for gripping non-conforming materials and causing the non-conforming materials to move along the conveyor belt (52).

9. The unwinding waste collection device according to claim 8, characterized in that, The second drive mechanism includes a second reversing cylinder; the second gripping mechanism includes a plurality of second negative pressure adsorption holes disposed on the second conveyor belt (52) and connected to the negative pressure mechanism.

10. An unwinding device, characterized in that, The unwinding equipment is equipped with an unwinding waste collection device as described in any one of claims 1 to 9.

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