Cutting method and cutting equipment
By employing a positioning and cutting method that aligns the cutting position with the cutting seam, along with dust removal, the complex control issues of existing electrode cutting equipment have been resolved, resulting in a simplified cutting process and reduced equipment costs.
Patent Information
- Application Number
- CN202511957662.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-23
- Publication Date
- 2026-02-27
AI Technical Summary
Existing electrode cutting equipment has complex control methods, is difficult to debug, and has high manufacturing and maintenance costs.
The cutting method is adopted, which positions and cuts the product by matching the cutting position with the cutting seam. During the cutting process, the product is conveyed at different speeds. Combined with dust removal, the cutting control logic and equipment structure are simplified.
It achieves stable and reliable cutting operations, reduces equipment manufacturing costs and maintenance difficulty, and simplifies the debugging process.
Smart Images
Figure CN121572380A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of battery manufacturing technology, and more particularly to cutting methods and cutting equipment. Background Technology
[0002] Electrode cutting is a key process in battery production, and its quality plays a decisive role in battery performance, safety, and lifespan.
[0003] In existing technologies, electrode cutting equipment mainly adopts a flying cut process. Its basic structure includes an unwinding mechanism, a flying cutter assembly, a traction mechanism, a winding mechanism, and a control system. The unwinding mechanism smoothly unwinds and controls the tension, the flying cutter assembly rotates at high speed to cut, the traction mechanism pulls the electrode at a constant speed, the winding mechanism separately winds up waste material and finished product, and the control system precisely coordinates the actions of each component, achieving stable and accurate cutting through complex programs and sensor feedback.
[0004] However, as product requirements increase, control methods become more complex due to the need for precise coordination of multiple parameters, increasing the difficulty of design and debugging; in order to achieve complex control functions, the structure of equipment becomes more and more complex, which not only increases manufacturing costs, but also increases the difficulty and cost of subsequent equipment maintenance. Summary of the Invention
[0005] The purpose of this invention is to provide a cutting method and cutting equipment, which solves the problems of complex cutting control methods, high debugging difficulty, increased manufacturing cost of equipment to implement the method, and high maintenance difficulty and cost of the equipment.
[0006] To achieve this objective, the present invention adopts the following technical solution:
[0007] In a first aspect, the present invention provides a cutting method, comprising:
[0008] Obtain the product's cutting position and transport the product to the cutting station at the highest speed;
[0009] When the cutting position corresponds to the cutting seam in the cutting station, the product movement is stopped and the product is cut.
[0010] The cut product is then conveyed away at a second speed, which is greater than the first speed.
[0011] The products are continuously dusted during the product transportation and cutting process.
[0012] Optionally, obtaining the cutting position of the product and conveying the product to the cutting station at a first speed specifically includes:
[0013] The conveying length of the product is obtained, the conveying distance between the product's cutting position and the cutting seam is determined based on the conveying length, and the first speed is adjusted based on the conveying distance.
[0014] Optionally, the cutting of the product specifically includes:
[0015] When the product's cutting position coincides with the cutting seam, the cutting blade is controlled to fall vertically and insert into the cutting seam to complete the cutting.
[0016] Optionally, after the product is shipped out, the cutting method further includes:
[0017] The cut product is sent to the next process at a third speed, which is less than the second speed.
[0018] Optionally, the dust removal process during product transportation specifically includes:
[0019] During the transport process, the product passes through multiple dust removal gaps. When the product blocks the dust removal gaps, the particles on the product surface are drawn into the dust removal gaps through a suction action.
[0020] Optionally, dust removal gaps are provided on both the upper and lower sides of the product during transportation.
[0021] Optionally, the dust removal slits are curved and extended.
[0022] Optionally, the dust removal process during product cutting specifically includes:
[0023] When the product's cutting position corresponds to the cutting seam, suction is continuously applied to the cutting position until the cutting is completed. Once the cutting is complete, suction is stopped to continue conveying the product.
[0024] Optionally, the conveyed product specifically includes:
[0025] Obtain the product thickness, and adjust the product inlet to a first width based on the product thickness, wherein the first width is greater than the product thickness;
[0026] After the product passes through the product inlet, the product inlet is adjusted to a second width, which is equal to the product thickness.
[0027] In a second aspect, the present invention provides a cutting device that cuts a product using the cutting method as described in any one of the first aspects, comprising:
[0028] A frame, wherein the frame is provided with a conveyor channel for conveying products and has a cutting slit;
[0029] A cutting blade is mounted on the frame and corresponds to the cutting seam;
[0030] A drive unit, connected to the cutting blade, drives the cutting blade to move and cut the product;
[0031] A feeding assembly is disposed at one end of the conveying channel and continuously conveys the product at a first speed;
[0032] A feeding assembly is located on the side of the cutting seam away from the feeding assembly and feeds the product away at a second speed;
[0033] A dust removal system is installed on the frame and connected to the conveying channel to remove dust from the product surface.
[0034] The beneficial effects of this invention are:
[0035] Firstly, through the aforementioned cutting method, during product cutting, the product is stably conveyed at a first speed to align the cutting position with the cutting seam. Stopping the product conveying simultaneously achieves the product's cutting positioning, allowing for cutting. After cutting, the cut product is quickly transported away at a second speed, while uncut products continue to be conveyed synchronously at the first speed. Continuous dust removal is performed on the products during conveying and cutting to ensure they are not affected by particulate matter, thus ensuring stable operation. Therefore, in this cutting method, product cutting positioning is achieved by aligning the product's cutting position with the cutting seam, eliminating the need for separate product positioning. Cutting can begin once the cutting position aligns with the cutting seam. Cut products are rapidly transported away, while uncut products continue to be conveyed, enabling high-speed, continuous cutting operations. The entire cutting method is simple, reliable, and easy to debug. Equipment implementing this method does not require complex structural components, effectively reducing manufacturing costs and subsequent maintenance difficulties and costs.
[0036] Secondly, when this cutting equipment is used to cut products, it utilizes the aforementioned cutting method for control. Specifically, the feeding component transports the product at a first speed. When the product's cutting position aligns with the cutting seam, the feeding component stops transporting the product, and the drive unit drives the cutting blade to cut the product. The cut product is then quickly fed away by the unloading component at a second speed. During the cutting process, the system continuously performs dust removal, thereby ensuring the stable and continuous operation of the cutting process. The entire cutting equipment can complete continuous product cutting operations without relying on high-precision control, resulting in lower overall manufacturing costs and lower subsequent maintenance difficulty and costs. Attached Figure Description
[0037] Figure 1 This is a flowchart illustrating the cutting method in an embodiment of the present invention;
[0038] Figure 2 This is a schematic diagram of the product input process in an embodiment of the present invention;
[0039] Figure 3 This is a schematic diagram of the cutting device in an embodiment of the present invention;
[0040] Figure 4 This is a structural cross-sectional view of the cutting device in an embodiment of the present invention.
[0041] In the picture:
[0042] 1. Frame; 2. Cutting blade; 3. Drive unit; 4. Feeding assembly; 5. Unloading assembly; 6. Dust removal system. Detailed Implementation
[0043] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.
[0044] In the description of this invention, 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 or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or 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 invention according to the specific circumstances.
[0045] In the description of this invention, unless otherwise expressly 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 being 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 being 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.
[0046] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0047] like Figures 1 to 4 As shown, the present invention provides a cutting method and a cutting device.
[0048] Reference Figure 1 The cutting method includes:
[0049] Step S1: Obtain the cutting position of the product and transport the product to the cutting station at the first speed.
[0050] The product can be an electrode sheet or other structures requiring cutting, such as membrane materials. After manufacturing, the product is elongated and transported using a specialized conveying structure. The dimensions of the cut product can be determined based on the final product requirements, allowing the cutting position to be established on the elongated product. This cutting position can be determined based on the product's conveying length or via a real-time camera module; this invention does not impose any limitations on this. Once the cutting position is determined, the product is continuously conveyed to the cutting station at a primary speed.
[0051] Step S2: When the cutting position corresponds to the cutting seam in the cutting station, stop the product movement and cut the product.
[0052] A cutting seam is set in the cutting station. The position of the cutting seam does not change. When the cutting position is aligned with the cutting seam, the product conveying can be stopped to fix the product. The cutting seam is used as a positioning reference to determine the product conveying distance. This positioning can be achieved by an infrared sensor. For example, the product can block the infrared sensor set at the cutting seam for a specified time. This time combined with the first speed can determine the product conveying distance, so that the product cutting position can be accurately stopped at the cutting seam. A cutting blade is set at the cutting seam to cut the product.
[0053] Step S3: The cut product is sent away at a second speed, which is greater than the first speed.
[0054] Once the product is cut, the cut product can be quickly conveyed away at a second speed, while the uncut product continues to be conveyed across the cutting seam at the first speed to ensure that the two do not interfere with each other.
[0055] Step S4: Continuously remove dust from the product during the product conveying and cutting process.
[0056] During product conveying and cutting, continuous suction can be applied to the product surface to remove dust. Suction can be achieved through a dedicated air duct or by creating gaps in the product's conveying path. In other embodiments, dust removal can also be achieved through other adsorption structures, which can be designed according to different product types.
[0057] Through steps S1 to S4, during product cutting, the product is stably conveyed at a first speed to align the cutting position with the cutting seam. Stopping the product conveying simultaneously achieves the product's cutting positioning, allowing for cutting. After cutting, the cut product is quickly transported away at a second speed, while uncut products continue to be conveyed synchronously at the first speed. Dust removal is continuously performed on the products during conveying and cutting to ensure they are not affected by particulate matter, thus ensuring stable operation. Therefore, in this cutting method, product positioning is achieved by aligning the product's cutting position with the cutting seam, eliminating the need for separate product positioning. Cutting can begin once the cutting position aligns with the cutting seam. Cut products are rapidly transported away, while uncut products continue to be conveyed, enabling high-speed, continuous cutting. The entire cutting method is simple, reliable, and easy to debug. Equipment implementing this method does not require complex structures, effectively reducing manufacturing costs and subsequent maintenance difficulties and costs.
[0058] Optionally, step S1 above specifically includes:
[0059] Obtain the product's conveying length, determine the product's cutting position and the conveying distance of the cutting seam based on the conveying length, and adjust the first speed according to the conveying distance.
[0060] Taking sheet-like products such as electrode sheets as an example, the conveying length of the product can be detected in real time by a measuring element. The measured length can be accumulated and recalculated each time a cut is made. This allows for obtaining the total length of the cut product and precise measurement of uncut products, preventing the accumulation of errors. The conveying length represents the distance the product crosses the cutting seam, which is the conveying distance between the next cutting position and the cutting seam. When the conveying distance approaches zero, the initial speed also approaches zero simultaneously, ensuring that the cutting position accurately corresponds to the cutting seam. The specific speed control method can be implemented by a corresponding program, which can refer to existing technologies; however, this is not the core of this invention and will not be explained here.
[0061] Optionally, the product is cut, specifically including: when the cutting position of the product coincides with the cutting seam, controlling the cutting blade to fall vertically and insert into the cutting seam to complete the cutting.
[0062] Specifically, once the product's cutting position corresponds to the cutting seam, it is only necessary to control the cutting blade to fall vertically. The cutting blade can then cut the product and insert it into the cutting seam to complete the cutting. Thus, the cutting blade does not require complex control logic. It is only necessary to set up a cylinder or motor as a driving element to drive the cutting blade to rise and fall vertically, thereby further simplifying the control logic of the cutting method.
[0063] Optionally, after the product is sent away, the cutting method further includes: sending the cut product to the next process at a third speed, where the third speed is less than the second speed.
[0064] Specifically, after the product is quickly conveyed away from the cutting seam, it continues to be conveyed at a lower third speed, ensuring that the product is stably conveyed away from the cutting equipment and sent to the next process. The specific values of the first, second, and third speeds can be designed according to the actual application scenario, and this invention does not limit them.
[0065] Optionally, dust removal treatment may be performed on the product during the product transportation process, specifically including:
[0066] The product passes through multiple dust-collecting gaps during transport. When the product blocks a gap, a suction process draws particles from the product's surface into the gap.
[0067] Specifically, dust removal gaps are set along the product's conveying path. These gaps can be curved, and a dust removal hood can be installed below them. The hood creates a suction space and is connected to a suction device, allowing for the suction of particulate matter from the product surface to achieve dust removal. To further enhance the dust removal effect, dust removal gaps are provided on both the upper and lower sides of the product during conveying, allowing for separate dust removal of the upper and lower surfaces.
[0068] Optionally, dust removal treatment may be performed on the product during the product cutting process, specifically including:
[0069] When the product's cutting position corresponds to the cutting seam, suction is continuously applied to the cutting position until the cutting is completed. Once the cutting is complete, suction is stopped to continue conveying the product.
[0070] Specifically, when the product is cut, particles will inevitably be generated at the cut. Therefore, the cutting seam is continuously suctioned during the cutting process to remove the particles generated during the cutting process. After the cutting is completed, in order to avoid the suction force generated by the suction pulling the product, the suction is stopped until the product's cutting position corresponds to the cutting seam again, and then the suction is resumed.
[0071] Reference Figure 2 Optionally, products may be transported, specifically including:
[0072] Step S11: Obtain the product thickness, and adjust the product inlet to the first width according to the product thickness. The first width is greater than the product thickness.
[0073] Different products have different thicknesses. Taking electrode sheets as an example, when conveying the product, it must be inserted into the product inlet. The product inlet can be composed of two vertically arranged transfer rollers. One transfer roller can move up and down, thereby adjusting the width of the product inlet, while the other transfer roller can be connected to a drive motor or other drive components to act as the drive roller. Before conveying the product, the two transfer rollers are separated to make the product inlet reach the first width, so that the product can easily be inserted into the product inlet.
[0074] Step S12: After the product passes through the product inlet, adjust the product inlet to the second width, which is equal to the product thickness.
[0075] Once the product is inserted, the structure forming the product inlet needs to be pressed tightly against the product in order to transport it. At this point, the width of the product inlet is adjusted to the second width, which is equal to the product thickness. This ensures that the structure forming the product inlet is in full contact with the product without damaging it, thus enabling the smooth transport of the product.
[0076] Reference Figure 3 and Figure 4 The cutting equipment uses the cutting method described above to cut products. It includes a frame 1, a cutting blade 2, a drive unit 3, a feeding assembly 4, a discharging assembly 5, and a dust removal system 6. The frame 1 is provided with a conveying channel for conveying products and has a cutting slit; the cutting blade 2 is located on the frame 1 and corresponds to the cutting slit; the drive unit 3 is connected to the cutting blade 2 to drive the cutting blade 2 to move and cut the product; the feeding assembly 4 is located at one end of the conveying channel and continuously conveys the product at a first speed; the discharging assembly 5 is located on the side of the cutting slit away from the feeding assembly 4 and discharges the product at a second speed; the dust removal system 6 is located on the frame 1 and communicates with the conveying channel to remove dust from the product surface.
[0077] When this cutting equipment is used to cut products, it utilizes the aforementioned cutting method for control. Specifically, the feeding assembly 4 conveys the product at a first speed. When the product's cutting position aligns with the cutting seam, the feeding assembly 4 stops conveying the product, and the drive component 3 drives the cutting blade 2 to cut the product. The cut product is then quickly conveyed away by the unloading assembly 5 at a second speed. During the cutting process, the system continuously performs dust removal to ensure stable and continuous cutting. The entire cutting equipment can complete continuous product cutting without relying on high-precision control, resulting in lower overall manufacturing costs and lower subsequent maintenance difficulty and costs.
[0078] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. 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 the present invention should be included within the scope of protection of the claims of the present invention.
Claims
1. A cutting method, characterized in that, include: Obtain the product's cutting position and transport the product to the cutting station at the highest speed; When the cutting position corresponds to the cutting seam in the cutting station, the product movement is stopped and the product is cut. The cut product is then conveyed away at a second speed, which is greater than the first speed. The products are continuously dusted during the product transportation and cutting process.
2. The cutting method according to claim 1, characterized in that, The step of obtaining the cutting position of the product and conveying the product to the cutting station at a first speed specifically includes: The conveying length of the product is obtained, the conveying distance between the product's cutting position and the cutting seam is determined based on the conveying length, and the first speed is adjusted based on the conveying distance.
3. The cutting method according to claim 1, characterized in that, The cutting of the product specifically includes: When the product's cutting position coincides with the cutting seam, the cutting blade is controlled to fall vertically and insert into the cutting seam to complete the cutting.
4. The cutting method according to claim 1, characterized in that, After the product is delivered, the cutting method further includes: The cut product is sent to the next process at a third speed, which is less than the second speed.
5. The cutting method according to claim 1, characterized in that, The dust removal process during product transportation specifically includes: During the transport process, the product passes through multiple dust removal gaps. When the product blocks the dust removal gaps, the particles on the product surface are drawn into the dust removal gaps through a suction action.
6. The cutting method according to claim 5, characterized in that, During the transportation process, dust removal gaps are provided on both the upper and lower sides of the product.
7. The cutting method according to claim 5, characterized in that, The dust removal gap is curved and extended.
8. The cutting method according to claim 1, characterized in that, The dust removal process during product cutting specifically includes: When the product's cutting position corresponds to the cutting seam, suction is continuously applied to the cutting position until the cutting is completed. Once the cutting is complete, suction is stopped to continue conveying the product.
9. The cutting method according to any one of claims 1 to 8, characterized in that, The conveyed products specifically include: Obtain the product thickness, and adjust the product inlet to a first width based on the product thickness, wherein the first width is greater than the product thickness; After the product passes through the product inlet, the product inlet is adjusted to a second width, which is equal to the product thickness.
10. A cutting device, characterized in that, The product is cut using the cutting method described in any one of claims 1 to 9, comprising: A frame (1) is provided with a conveying channel for conveying products and has a cutting slit; A cutting blade (2) is disposed on the frame (1) and corresponds to the cutting seam; A drive unit (3) is connected to the cutting blade (2) to drive the cutting blade (2) to move and cut the product; A feeding assembly (4) is disposed at one end of the conveying channel and continuously conveys the product at a first speed; The unloading assembly (5) is located on the side of the cutting seam away from the feeding assembly (4) and feeds the product away at a second speed; A dust removal system (6) is installed on the frame (1) and connected to the conveying channel to remove dust from the product surface.