Power battery one-die multi-cavity blanking die

Abstract

The invention discloses a one-die multi-cavity sheet blanking die for a power battery, which is suitable for a sheet processing technology in power battery production. The die comprises an upper die and a lower die, a pin hole is formed in a blanking punch of the upper die, the pin hole is connected with an intelligent device through a pipeline, the intelligent device comprises an airflow control module, a detection sensor, an adjuster and a filter, and the intelligent device is used for removing aluminum powder and impurities in the die and preventing aluminum powder accumulation from causing scratches or flaws on the surface of a sheet stock. And the intelligent air blowing device can automatically adjust air flow, aluminum powder is removed in time, and continuous and efficient operation of the mold is guaranteed. According to the die, manual intervention is reduced, the rework rate and the defective product rate are reduced, the product quality and the production efficiency are improved, and the die is suitable for a large-scale automatic production line.

Description

Technical Field

[0001] The invention relates to the field of mold technology, and in particular to a single-mold multi-cavity blanking mold for power batteries. Background Art

[0002] Stamping is one of the common processing methods in industrial production. Especially in the sheet material processing in the field of power batteries, the rational use of stamping equipment, molds and raw materials is crucial to improving production efficiency and product quality. The traditional sheet material processing technology has the following significant disadvantages:

[0003] The traditional single-cavity mold design limits the improvement of production efficiency. The number of punches per minute (SPM) of a single device is low, usually only maintained at 12-17 times / min. This low efficiency not only affects the overall production capacity, but also leads to a waste of equipment resources, making it difficult to meet the requirements of modern automated production lines for high efficiency and high output.

[0004] In the traditional sheet processing process, the accumulation of aluminum powder in the mold is an important cause of product surface quality problems. Since aluminum powder is continuously generated during the stamping process, if there is no reasonable removal device in the mold structure, aluminum powder is easy to accumulate on the mold surface, resulting in defects such as grinding and scratches on the sheet surface, which seriously affects the consistency and qualification rate of the product. Such surface defects often need to be repaired through rework, which increases production costs and time.

[0005] During the stamping process, the mold may become stuck due to the accumulation of aluminum powder, which will affect the continuity of production. Long-term stuck or accumulated aluminum powder will also increase the wear of the mold and equipment, shorten the service life of the mold, and increase the maintenance cost of the equipment. In addition, due to the wear of the mold, the dimensional accuracy and surface quality of the product may gradually decrease, resulting in an increase in the defective rate.

[0006] Traditional molds usually rely on manual cleaning of aluminum powder on a regular basis, which not only increases labor costs, but also affects the continuous operation of the production line, and cannot fully tap the potential of the automated production line. At the same time, the automation level of sheet material connection and transmission is low, resulting in an unsmooth process connection and reduced overall production efficiency. In view of this, the existing problems are studied and improved, and a power battery single-mold multi-cavity sheet material mold is provided to solve the current problems, aiming to achieve the purpose of solving problems and improving practical value through this technology. Summary of the invention

[0007] The present invention relates to a one-mold multi-cavity sheet-dropping die for power batteries, which has the advantages of improving production efficiency, product quality and automation level. The upper and lower molds of the mold are respectively composed of multiple structures and combined with an intelligent blowing device. The one-mold multi-cavity design improves production efficiency, and the intelligent blowing device removes aluminum powder in the mold, thereby improving product consistency and qualified rate.

[0008] The present invention includes an upper die and a lower die, wherein the upper die includes an upper support plate, an upper die seat, an upper clamping plate, a stop plate, a stripping plate, a blanking punch, a guide column, a guide sleeve, an upper die fixing pin, an upper die fixing screw, a height screw, a quick connector, a waste cutting punch, and a stripping spring, and the lower die includes a lower template, a lower pad, a lower die seat, a lower pad, a lower support plate, a material receiving cylinder, a cylinder pad, a cylinder connecting block, a fixing screw, and a waste cutting lower die blade. A pin hole is provided on the blanking punch of the upper die, and the pin hole is connected to an intelligent device through a pipeline. The intelligent device includes an airflow control module, a detection sensor, a regulator, and a filter. The airflow control module is mounted on the upper support plate and connected to an air source through a pipeline. The detection sensor is mounted near the blanking punch and connected to the upper die seat through a bracket, and is used to detect aluminum powder accumulation in the mold. The regulator is connected to the airflow control module and controls the pressure and direction of the airflow. The filter is located in the air path and is used to filter impurities in the air. The aluminum powder accumulated on the mold surface is removed through the intelligent blowing device to ensure that the mold remains clean during the production process and avoid scratches or defects on the sheet surface caused by aluminum powder accumulation, thereby improving the consistency and quality of the product.

[0009] In a preferred example, the present invention can be further configured as follows: wherein the lower template is fastened to the lower pad by bolts, the lower pad is connected to the lower die base, the lower support plate is fixed to the material receiving cylinder by screws, the material receiving cylinder is connected to the lower die base through the cylinder pad, and is connected to the transmission system through the cylinder connection block for automatic material receiving and transmission. Through the automated sheet receiving and transmission system, manual intervention is reduced, automatic sheet handling and stacking are achieved, the automation level of the production line is further improved, and human and equipment resources are saved.

[0010] In a preferred example, the present invention can be further configured as follows: wherein the airflow control module is connected to the regulator through a pipeline, the regulator is connected to the pin hole installed on the blanking punch through a pipeline, the pin hole is evenly distributed along the axial direction of the blanking punch, the airflow control module provides airflow, the regulator adjusts the size and direction of the airflow, and the filter is located in the air path to filter impurities in the air. The pin hole is arranged on the surface of the upper mold, combined with the airflow system, it can effectively remove the aluminum powder inside the mold, and ensure the clean airflow through the filter, reduce impurities entering the mold, and maintain the surface finish of the product.

[0011] In a preferred example, the present invention can be further configured as follows: wherein the detection sensor is fixed to the side of the upper die seat, the detection end is located near the working area of ​​the blanking punch, and the detection sensor is connected to the airflow control module through a signal line, and the signal line is arranged along the side of the upper die seat. The aluminum powder accumulation in the mold is monitored in real time by the detection sensor to ensure that the airflow system is automatically started when the aluminum powder accumulates to a certain extent, thereby preventing mold jamming and product quality problems caused by aluminum powder accumulation.

[0012] In a preferred example, the present invention can be further configured as follows: wherein the lower support plate is fastened to the receiving cylinder by bolts, the receiving cylinder is mounted on the lower die base and contacts the lower pad through the support block, and the receiving cylinder transmits the object to other equipment through the cylinder connection block. Through the combination of the cylinder device and the transmission system, automatic sheet material transmission is realized, manual operation is reduced, the efficiency of the production line is improved, and the continuity of production is ensured.

[0013] In a preferred example, the present invention can be further configured as follows: wherein the regulator includes a valve connected to the pin hole through a hose, the valve is controlled by a detection sensor, the pin holes are evenly arranged in the transverse direction on the blanking punch, and the filter is installed on the pipe between the regulator and the pin hole. Through the design of the valve and the regulator, the pressure and direction of the airflow can be accurately controlled to ensure that the aluminum powder inside the mold can be effectively removed, avoiding poor cleaning effect caused by excessive or insufficient airflow.

[0014] In a preferred example, the present invention can be further configured as follows: wherein the stripping spring is an elastic element installed between the stripping plate and the blanking punch, the stripping spring is guided by a guide post, the guide post passes through the upper support plate, and cooperates with the guide sleeve to achieve guidance. The elastic element is used to provide a reset force after the mold works, ensuring that the mold can be reset smoothly after each stamping, reducing wear and extending the service life of the mold.

[0015] In a preferred example, the present invention can be further configured as follows: wherein the quick connector is a connector, which is arranged between the upper support plate and the lower die base for connection, and the quick connector includes a screw and a pin, wherein the screw is fixed between the upper support plate and the lower die base by threading, and the pin is used for positioning. Through the design of the quick connector, it is ensured that the upper and lower dies of the mold can be quickly installed and disassembled, which improves the convenience of mold maintenance and reduces downtime.

[0016] In a preferred example, the present invention can be further configured as follows: wherein the waste cutting punch is used in conjunction with a waste cutting lower die blade, the waste cutting lower die blade is fixed on the lower die base, and the waste cutting punch moves in the axial direction. Through the design of the waste cutting device, waste generated during the production process is effectively removed, the cleanliness and normal operation of the mold are ensured, and waste accumulation is prevented from affecting the working performance of the mold.

[0017] In a preferred example, the present invention can be further configured as follows: wherein the detection sensor is connected to the airflow control module via a signal line, the airflow control module adjusts the air pressure after receiving the signal from the detection sensor, the pin holes are arranged along the transverse direction of the blanking punch, and the filter is arranged in the air path to filter impurities in the air. Ensure that the signal connection between the detection sensor and the airflow control module can dynamically adjust the strength and direction of the airflow to ensure that the airflow removes the aluminum powder through the pin holes and maintains the normal working state of the mold.

[0018] Through the specific description of the above claims, the present invention has significant advantages in improving production efficiency, improving product quality, reducing aluminum powder accumulation, and increasing mold life.

[0019] The beneficial effects achieved by the present invention are:

[0020] 1. In the present invention, the mold design adopts a one-mold multi-cavity solution, which greatly improves the working speed of the punch press and significantly improves the production efficiency, which can reach a minimum of 50 punches / minute. One sheet feeder can support the normal production of 5-6 stretching machines, greatly improving the automation level and production capacity of production.

[0021] 2. In the present invention, the intelligent blowing component in the mold structure can timely and effectively remove aluminum powder and impurities in the mold, prevent the accumulation of aluminum powder from causing pollution or surface damage to the sheet material, ensure that the product surface is smooth and flawless, thereby ensuring product consistency and improving product quality and pass rate.

[0022] 3. In the present invention, the blowing device in the mold can remove impurities generated in the production process in real time, reduce problems such as mold sticking and aluminum powder accumulation, thereby reducing rework caused by surface flaws or defects and significantly reducing the defective product rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the surface structure of an upper support plate according to an embodiment of the present invention;

[0024] Figure 2 A schematic diagram of the mold closing state structure of an embodiment of the present invention;

[0025] Figure 3 For one embodiment of the present invention Figure 1 A schematic diagram of the structure at A;

[0026] Figure 4 This is a schematic diagram of the structure of an intelligent blowing component according to an embodiment of the present invention;

[0027] Figure 5 The figure is a schematic diagram of the surface structure of the lower support plate according to an embodiment of the present invention.

[0028] Reference numerals:

[0029] 1. Upper support plate; 2. Upper die seat; 3. Upper clamping plate; 4. Stop plate; 5. Stripper plate; 6. Blanking punch; 7. Guide column; 8. Guide sleeve; 9. Upper die fixing pin; 10. Upper die fixing screw; 11. Equal height screw; 12. Quick connector; 13. Waste cutting punch; 14. Stripper spring; 15. Lower die plate; 16. Lower pad; 17. Lower die seat; 18. Lower pad; 19. Lower support plate; 20. Material receiving cylinder; 21. Cylinder pad; 22. Cylinder connecting block; 23. Fixing screw; 24. Waste cutting lower die blade; 25. Air flow control module; 26. Detection sensor; 27. Regulator; 28. Filter. DETAILED DESCRIPTION

[0030] To make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below in combination with specific implementations and with reference to the accompanying drawings. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0031] It is to be understood that these descriptions are exemplary only and are not intended to limit the scope of the invention.

[0032] The following is combined with Figure 1-Figure 5 A single-mold multi-cavity blanking die for a power battery provided by some embodiments of the present invention is described.

[0033] Example 1

[0034] Embodiment 1 of the present invention relates to a one-mold multi-cavity blanking die for power batteries, as shown in the figure, including an upper die and a lower die. The upper die includes an upper support plate 1, an upper die seat 2, an upper clamping plate 3, a stop plate 4, a stripping plate 5, a blanking punch 6, a guide column 7, a guide sleeve 8, an upper die fixing pin 9, an upper die fixing screw 10, a height screw 11, a quick connector 12, a waste cutting punch 13, and a stripping spring 14; the lower die includes a lower template 15, a lower pad 16, a lower die seat 17, a lower pad 18, a lower support plate 19, a material receiving cylinder 20, a cylinder pad 21, a cylinder connecting block 22, a fixing screw 23, and a waste cutting lower die blade 24.

[0035] Among them, the blanking punch 6 is provided with a plurality of pin holes, which are evenly distributed in the axial direction, and are used to remove aluminum powder through airflow during the working process of the mold. The airflow is generated by an intelligent device, which includes an airflow control module 25, a detection sensor 26, a regulator 27 and a filter 28. The airflow control module 25 is installed on the top of the upper support plate 1, connected to the air source, and is responsible for providing airflow. The airflow passes through the filter 28, which is used to filter impurities in the air to prevent impurities from entering the inside of the mold. The airflow control module airflow control module 25 is connected to the regulator 27 through a pipeline, and the regulator 27 controls the direction and pressure of the airflow, and guides the airflow to the pin holes, which is used to blow away the aluminum powder in the mold.

[0036] The detection sensor 26 is installed near the blanking punch 6 and is connected to the upper die holder 2 through a bracket to detect the aluminum powder accumulation inside the die. When aluminum powder accumulation is detected, the detection sensor 26 sends a signal to the airflow control module 25 to adjust the intensity of the airflow so as to increase or decrease the air pressure in the airflow control module. The detection sensor 26 is connected to the airflow control module 25 through a signal line, and the signal line is arranged on the side of the upper die holder 2.

[0037] The receiving cylinder 20 is a cylinder device, which is installed between the lower die base 17 and the lower support plate 19, and is connected to the transmission device through the cylinder connecting block 22, and is used to automatically receive the material when the mold is working. When the set number of sheets is reached, the receiving cylinder 20 opens and transmits the sheets to the conveyor belt, automatically completing the sheet handling process.

[0038] Through the mold structure design in this embodiment, especially the one-mold-multiple-cavity solution, the working speed of the punch press is significantly increased to 50 punches / minute, greatly improving production efficiency. At the same time, the intelligent device can timely and effectively remove aluminum powder in the mold, prevent surface defects of the product caused by aluminum powder accumulation, and ensure product consistency and qualified rate.

[0039] Example 2

[0040] In Example 2, the intelligent blowing assembly in the mold is further improved to adapt to the airflow requirements in different production environments. This embodiment also includes an upper mold and a lower mold, and the structure of the upper mold and the lower mold is the same as that of Example 1, including an upper support plate 1, an upper mold base 2, an upper clamping plate 3, a stop plate 4, a stripping plate 5, a blanking punch 6, a guide column 7, a guide sleeve 8, an upper mold fixing pin 9, an upper mold fixing screw 10, an equal height screw 11, a quick connector 12, a waste cutting punch 13, and a stripping spring 14; the lower mold includes a lower mold plate 15, a lower pad 16, a lower mold base 17, a lower pad 18, a lower support plate 19, a material receiving cylinder 20, a cylinder pad 21, a cylinder connecting block 22, a fixing screw 23, and a waste cutting lower mold blade 24.

[0041] The regulator 27 in this embodiment can not only adjust the pressure of the airflow, but also has an automatic switching function. Through the control module setting, the regulator 27 can automatically switch different airflow modes according to the changes in the mold workload. For example, when the mold workload is large, the regulator 27 will automatically increase the airflow pressure to ensure more efficient removal of aluminum powder in the mold. On the contrary, when the load is small, the airflow pressure is automatically reduced to avoid unnecessary energy waste.

[0042] In addition, the detection sensor 26 in this embodiment has been improved to add more detection nodes to cover more areas of the mold, so as to more accurately detect the accumulation of aluminum powder. By adding detection nodes, the sensor can monitor multiple working areas of the mold in real time to ensure that the airflow cleanly covers every corner and avoids missing any aluminum powder accumulation area.

[0043] The design of the filter 28 has also been optimized, with a multi-stage filtering function added to ensure that the airflow is thoroughly filtered before entering the mold, further reducing the probability of impurities entering and ensuring the smoothness of the product surface.

[0044] Compared with Example 1, the improvement of Example 2 makes the intelligent blowing component of the mold more flexible and adaptable, and can be dynamically adjusted according to different production needs, thereby further improving production efficiency and product quality.

[0045] The working principle and use process of the present invention:

[0046] The power battery one-mold multi-cavity blanking die of the present invention adopts a one-mold multi-cavity design and is combined with an intelligent blowing component for automatic cleaning. Its working principle can be divided into two main parts: the mold working part and the intelligent blowing component part.

[0047] Working part of the mold: The upper mold and the lower mold cooperate with each other to perform stamping work. The upper mold includes an upper supporting plate 1, an upper mold base 2, an upper clamping plate 3, a stop plate 4, a stripping plate 5, a blanking punch 6, a guide column 7, a guide sleeve 8, an upper mold fixing pin 9, an upper mold fixing screw 10, a height screw 11, a quick connector 12, a waste cutting punch 13, and a stripping spring 14. The lower mold includes a lower mold plate 15, a lower pad 16, a lower mold base 17, a lower pad 18, a lower supporting plate 19, a material receiving cylinder 20, a cylinder pad 21, a cylinder connecting block 22, fixing screws 23, and a waste cutting lower mold blade 24.

[0048] The sheet material is punched by the blanking punch 6 of the upper die, and the sheet material is cut and formed into a specific shape.

[0049] Due to the one-mold multi-cavity design, the punching rate of the mold can reach 50 times / minute, which greatly improves the work efficiency. One sheet feeder can support the simultaneous production of 5-6 stretching machines, improving the production capacity of the entire production line.

[0050] Intelligent blowing component part:

[0051] During the working process of the mold, a large amount of aluminum powder will be generated, which is easy to accumulate in the mold and affect the surface quality of the sheet. To this end, the present invention designs an intelligent blowing component, which includes an airflow control module 25, a detection sensor 26, a regulator 27 and a filter 28.

[0052] When the mold starts working, the detection sensor 26 monitors the accumulation of aluminum powder inside the mold in real time. Once the accumulation of aluminum powder is detected, the sensor will send a signal to the airflow control module 25 to start the airflow.

[0053] Airflow control module The airflow control module 25 filters the air through the filter 28, and the filtered air enters the regulator 27. The regulator controls the pressure and direction of the airflow according to the feedback of the sensor, and guides the airflow to the inner surface of the mold through the pin hole blanking punch 6 to remove the accumulated aluminum powder and ensure the continuous and efficient operation of the mold.

[0054] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0055] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A power battery single-mold multi-cavity blanking die, characterized in that: The upper die comprises an upper support plate (1), an upper die seat (2), an upper clamping plate (3), a stop plate (4), a stripping plate (5), a blanking punch (6), a guide column (7), a guide sleeve (8), an upper die fixing pin (9), an upper die fixing screw (10), an equal height screw (11), a quick connector (12), a waste cutting punch (13), and a stripping spring (14); the blanking punch (6) is provided with a pin hole, and the pin hole is connected to an intelligent air blowing component. The intelligent air blowing component comprises an air flow control module (25), a detection sensor (26), a regulator (27), and a filter (28). The air flow control module (25) is mounted on the upper support plate (1) and connected to an air source through a pipeline. The detection sensor (26) is mounted near the blanking punch (6) and is used to detect substances inside the die. The regulator (27) is connected to the pin hole through a pipeline and is used to adjust the size and direction of the air flow. The filter (28) is arranged on the air path between the air flow control module (25) and the pin hole and is used to filter impurities in the air.

2. A power battery single-mold multi-cavity blanking die according to claim 1, characterized in that: The lower die comprises a lower die plate (15), a lower pad (16), a lower die seat (17), a lower pad block (18), a lower supporting plate (19), a material receiving cylinder (20), a cylinder pad (21), a cylinder connecting block (22), fixing screws (23), and a waste material cutting lower die blade (24). The lower die plate (15) is connected to the lower pad (16) by bolts, the lower pad (16) is connected to the lower die seat (17), the lower supporting plate (19) is fixed to the material receiving cylinder (20) by screws, the material receiving cylinder (20) is connected to the cylinder pad (21), the cylinder pad (21) is connected to the lower die seat (17) by a cylinder connecting block (22), and the material receiving cylinder (20) is used to control the transmission of an object.

3. A power battery single-mold multi-cavity blanking die according to claim 1 or 2, characterized in that: The airflow control module (25) is connected to the regulator (27) via a pipeline, and the regulator (27) is connected to a pin hole installed on the blanking punch (6) via a pipeline, and the pin hole is arranged along the axial direction of the blanking punch (6). The airflow control module (25) provides airflow, and the regulator (27) adjusts the size and direction of the airflow. The filter (28) is arranged in the air path and is used to filter impurities in the air.

4. A power battery single-mold multi-cavity blanking die according to claim 3, characterized in that: The detection sensor (26) is fixed to the side of the upper die base (2) and connected to the upper support plate (1) via a bracket. The detection end of the detection sensor (26) is located in the working area of ​​the blanking punch (6). The detection sensor (26) is connected to the airflow control module (25) via a signal line, and the signal line is arranged along the side of the upper die base (2).

5. A power battery single-mold multi-cavity blanking die according to claim 1 or 2, characterized in that: The lower support plate (19) is fastened to a material receiving cylinder (20) by bolts. The material receiving cylinder (20) is mounted on a lower die base (17) and is in contact with a lower pad (16) via a support block. The material receiving cylinder (20) transfers the object to other equipment via a cylinder connecting block (22).

6. A power battery single-mold multi-cavity blanking die according to claim 1 or 2, characterized in that: The regulator (27) includes a valve connected to the pin hole via a hose, the valve being controlled by a detection sensor (26), the pin holes being evenly arranged in the transverse direction on the blanking punch (6), and the filter (28) being mounted on the pipeline between the regulator (27) and the pin hole.

7. A power battery single-mold multi-cavity blanking die according to claim 1 or 2, characterized in that: The stripping spring (14) is an elastic element installed between the stripping plate (5) and the blanking punch (6). The stripping spring (14) is guided by a guide column (7). The guide column (7) passes through the upper support plate (1) and cooperates with the guide sleeve (8) to achieve guidance.

8. A power battery single-mold multi-cavity blanking die according to claim 1 or 2, characterized in that: The quick connector (12) is a connecting piece, which is arranged between the upper support plate (1) and the lower die base (17) for connection. The quick connector (12) comprises a screw and a pin. The screw is fixed between the upper support plate (1) and the lower die base (17) by means of a thread, and the pin is used for positioning.

9. A power battery single-mold multi-cavity blanking die according to claim 1 or 2, characterized in that: The waste cutting punch (13) is used in conjunction with a waste cutting lower die blade (24); the waste cutting lower die blade (24) is fixed on a lower die seat (17); and the waste cutting punch (13) moves in an axial direction.

10. A power battery single-mold multi-cavity blanking die according to claim 1 or 2, characterized in that: The detection sensor (26) is connected to the airflow control module (25) via a signal line. After receiving the signal from the detection sensor (26), the airflow control module (25) adjusts the air pressure. The pin holes are arranged in the transverse direction of the blanking punch (6). The filter (28) is arranged in the air path to filter impurities in the air and prevent the impurities from entering the mold.

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