Adjustable slitting knife holder

Abstract

The utility model belongs to lithium ion battery technical field, concretely relates to an adjustable slitting cutter holder, including inside cutting amount screw rod adjusting digital display mechanism, outside cutting amount adjusting digital display mechanism, screw micrometer off -cut amount adjusting mechanism, off -cut amount laser ranging structure and upper knife horizontal measurement mechanism, inside cutting amount screw rod adjusting digital display mechanism and outside cutting amount adjusting digital display mechanism are arranged respectively in the inside and outside of the cutter holder, screw micrometer off -cut amount adjusting mechanism is installed in the main shaft position on the cutter holder, and off -cut amount laser ranging structure and upper knife horizontal measurement mechanism are all assembled in the corresponding detection position of the cutter holder. The utility model is through setting inside and outside cutting amount screw rod adjusting digital display mechanism, and the linkage plate and upper shaft positioning block are driven to move with the help of ball screw regulator, and cooperate digital display real -time display adjusting amount, realized the quantitative accurate adjustment of cutting amount, got rid of the dependence on the experience of operating personnel, and the debugging difficulty was reduced greatly.

Description

Technical Field

[0001] This utility model belongs to the field of lithium-ion battery technology, specifically relating to an adjustable slitting blade holder. Background Technology

[0002] In recent years, lithium-ion batteries, as an important representative of green new energy, have been widely used in power batteries, consumer electronics, and other fields. Their safety performance has become a core indicator for industry development and competition. In the production process of lithium-ion cells, electrode slitting is one of the key processes, and the slitting quality directly affects the safety of the battery. If excessive burrs are generated after electrode slitting, it may cause safety hazards such as internal short circuits in the battery.

[0003] Currently, the industry primarily uses fixed metal cutter holders for electrode slitting. However, with the development of battery technology, the thickness, material, and system of electrodes are becoming increasingly diverse, and fixed cutter holders have significant limitations: their depth of cut (the depth the cutter penetrates into the electrode) and clearance (the gap between the upper and lower cutters) cannot be adjusted according to the characteristics of the electrode, making it difficult to adapt to the processing needs of electrodes of different thicknesses and systems. This lack of adjustability leads to poor stability in electrode slitting results, a single method for burr control, and a lack of clear parameter adjustment standards. Over-reliance on operator experience not only increases the difficulty of adjustment but also makes it difficult to guarantee consistent slitting quality, severely restricting the safety and reliability of battery production.

[0004] In the existing technology, although there are some solutions for adjusting the slitting tool holder (such as the patent with publication number CN202410803103.5 which uses a linear guide rail in conjunction with a micrometer head for adjustment, the patent with CN202322313242.3 which uses a bearing screw cap to drive the overall movement of the tool shaft, the patent with CN202222944128.6 which relies on the rotational connection between the tool holder and the frame for adjustment, and the patent with CN202111383547.0 which uses an electrically controlled slide table and a lead screw motor for adjustment), none of these solutions have a lead screw adjustment digital display mechanism for the inner and outer cutting depths. They also lack a micrometer screw adjustment mechanism for the cutting depth, a laser distance measurement structure for the cutting depth, and a tool level measurement mechanism. They cannot achieve quantitative and precise adjustment of the cutting depth and cutting depth, nor can they intuitively detect the tool level. Therefore, it is still difficult to solve the problems of compatible slitting and quality stability of different electrodes.

[0005] Therefore, developing an adjustable slitting tool holder that can be flexibly adjusted according to the characteristics of the electrode, has quantitative parameter markings, and can ensure the stability of slitting quality has become an urgent need in the industry. Utility Model Content

[0006] The purpose of this invention is to provide an adjustable slitting blade holder, which aims to solve the problem that the existing technology cannot be compatible with electrodes of different thicknesses, materials and systems, and cannot quantitatively adjust the cutting depth and cutting distance, resulting in unstable electrode slitting effect.

[0007] To achieve the above objectives, this utility model provides the following technical solution: This utility model provides an adjustable slitting tool holder, including an inner depth-of-cut screw adjustment digital display mechanism, an outer depth-of-cut adjustment digital display mechanism, a micrometer-based tool-off-cutting distance adjustment mechanism, a tool-off-cutting distance laser ranging structure, and an upper tool level measuring mechanism. The inner depth-of-cut screw adjustment digital display mechanism and the outer depth-of-cut adjustment digital display mechanism are respectively disposed on the inner and outer sides of the tool holder. The micrometer-based tool-off-cutting distance adjustment mechanism is installed on the spindle position of the tool holder. The tool-off-cutting distance laser ranging structure and the upper tool level measuring mechanism are both assembled at the corresponding detection positions of the tool holder.

[0008] Preferably, the inner depth-of-cut screw adjustment digital display mechanism includes an inner ball screw adjuster, an inner screw displacement digital display, an inner connecting plate, an inner forming guide post, an inner support set screw, an inner screw positioning plate, and an inner linear bearing; the inner ball screw adjuster passes through the inner screw positioning plate and is connected to the inner connecting plate, the inner screw displacement digital display is mounted on the inner screw positioning plate, the inner forming guide post is connected to the inner connecting plate through the inner linear bearing, and the inner support set screw is located on one side of the inner screw positioning plate and corresponds to the inner connecting plate.

[0009] Preferably, the outer depth of cut adjustment digital display mechanism includes an outer ball screw adjuster, an outer screw displacement digital display, an outer connecting plate, an outer pluggable forming guide post, an outer support set screw, an outer screw positioning plate, and an outer linear bushing; the outer ball screw adjuster passes through the outer screw positioning plate and is connected to the outer connecting plate, the outer screw displacement digital display is mounted on the outer screw positioning plate, the outer pluggable forming guide post is connected to the outer connecting plate through the outer linear bushing, and the outer support set screw is located on one side of the outer screw positioning plate and corresponds to the outer connecting plate.

[0010] Preferably, the micrometer displacement adjustment mechanism includes an upper spindle threaded structure, a threaded fixing top block, and a graduated threaded adjusting pad; the graduated threaded adjusting pad is threadedly connected to the upper spindle threaded structure, and the threaded fixing top block is disposed on one side of the graduated threaded adjusting pad and cooperates with the upper spindle threaded structure.

[0011] Preferably, the laser ranging structure for tool displacement includes a laser ranging sensor, a photometric laser sensor bracket, and a tool-avoiding pad; the laser ranging sensor is mounted on the photometric laser sensor bracket, the tool-avoiding pad is positioned below the laser ranging sensor at a corresponding location, and a strong magnet is provided on the photometric laser sensor bracket.

[0012] Preferably, the upper blade level measuring mechanism includes an upper blade plane step pad and a digital display level; the upper blade plane step pad is set at the corresponding position of the upper blade holder, and the digital display level is placed on the upper surface of the upper blade plane step pad.

[0013] Preferably, the inner connecting plate is connected to the inner upper shaft positioning block, and the rotation of the inner ball screw adjuster drives the inner connecting plate to move up and down, thereby driving the inner upper shaft positioning block to move synchronously.

[0014] Preferably, the outer connecting plate is connected to the outer upper shaft positioning block, and the rotation of the outer ball screw adjuster drives the outer connecting plate to move up and down, thereby driving the outer upper shaft positioning block to move synchronously.

[0015] Preferably, the laser sensor bracket is tightly fitted to the inner spindle positioning block and the base plate via a strong magnet, and the red light of the laser rangefinder is aligned with the upper and lower blade end faces.

[0016] Preferably, the micrometer displacement adjustment mechanism further includes a pad locking and positioning block, which is located on the other side of the graduated threaded adjustment pad and cooperates with the threaded fixing top block to fix the graduated threaded adjustment pad.

[0017] The beneficial effects of this utility model are as follows: This utility model sets up an inner and outer depth-of-cut screw adjustment digital display mechanism, which drives the connecting plate and the upper shaft positioning block to move with the help of the ball screw adjuster, and displays the adjustment amount in real time with the digital display, realizing the quantitative and precise adjustment of the depth of cut, eliminating the dependence on the operator's experience, and greatly reducing the difficulty of debugging. At the same time, the use of linear bearings, guide pillars and other structures ensures the stability of the adjustment process, ensuring that electrode sheets of different thicknesses and materials can obtain suitable depth-of-cut parameters.

[0018] In addition, the spiral micrometer blade removal amount adjustment mechanism achieves blade removal amount adjustment through the cooperation of the threaded structure and the scale pad. Combined with the precise detection of the laser ranging structure and the horizontal calibration of the upper blade level measuring mechanism, the adjustment accuracy and intuitiveness are further improved. This provides a clear numerical basis for blade removal amount adjustment and allows for intuitive judgment of the upper blade level, effectively ensuring the stability of the electrode sheet cutting effect, reducing burr generation, and improving the safety and product quality of battery production. Attached Figure Description

[0019] Figure 1 The figure shown is a schematic diagram of the overall structure of the tool holder provided in an embodiment of this application; Figure 2 The diagram shown is a schematic of the digital display mechanism for adjusting the depth of cut on the inner side of the tool holder according to an embodiment of this application; Figure 3 The diagram shown is a schematic diagram of the digital display mechanism for adjusting the depth of cut on the outer side of the tool holder according to an embodiment of this application; Figure 4The diagram shown is a schematic diagram of the tool holder spiral micrometer tool displacement adjustment mechanism provided in an embodiment of this application; Figure 5 The diagram shows a laser ranging structure for tool holder distance and a horizontal measuring mechanism for upper tool provided in an embodiment of this application.

[0020] The attached diagram is described below: In the diagram: 1. Inner depth of cut screw adjustment digital display mechanism; 2. Outer depth of cut adjustment digital display mechanism; 3. Micrometer screw displacement adjustment mechanism; 4. Displacement laser ranging structure; 5. Upper tool level measuring mechanism; 6. Inner ball screw adjuster; 7. Inner screw displacement digital display; 8. Inner connecting plate; 9. Inner forming guide post; 10. Inner support set screw; 11. Inner screw positioning plate; 12. Inner linear bearing; 13. Outer ball screw adjuster; 14. Outer screw displacement digital display; 15. Outer connecting plate; 16. Outer insertable... 17. Pull-out guide post; 18. Outer support top screw; 19. Outer lead screw positioning plate; 20. Outer linear bushing; 21. Upper spindle thread structure; 22. Threaded fixing top block; 23. Graduated threaded adjustment pad; 24. Laser rangefinder sensor; 25. Light metering laser sensor bracket; 26. Lower tool clearance pad; 27. Upper tool plane step pad; 28. Digital display level; 29. ​​Inner upper shaft positioning block; 30. Outer upper shaft positioning block; 31. Pad restraint positioning block; 32. Inner spindle positioning block; 33. Strong magnet; 44. Base plate. Detailed Implementation

[0021] It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0022] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixed connection," and "fixed connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings and preferred embodiments.

[0025] As shown in Figures 1 to 3, the adjustable slitting blade holder of this utility model achieves precise adjustment of the cutting depth and cutting depth during the slitting process of lithium-ion battery cell electrode sheets of different thicknesses, materials, and systems through the coordinated operation of the inner cutting depth screw adjustment digital display mechanism 1, the outer cutting depth adjustment digital display mechanism 2, the spiral micrometer cutting depth adjustment mechanism 3, the cutting depth laser ranging structure 4, and the upper blade horizontal measurement mechanism 5.

[0026] In the inner depth-of-cut screw adjustment digital display mechanism 1, the inner ball screw adjuster 6 passes through the inner screw positioning plate 11, and its lower end is fixedly connected to the inner connecting plate 8; inner linear bearings 12 are sleeved on both sides of the inner connecting plate 8, and inner guide posts 9 are inserted into the inner linear bearings 12, and the two ends of the inner guide posts 9 are fixed to the tool holder body and the inner screw positioning plate 11 respectively, forming a guide structure for inner adjustment; the inner support top screw 10 is threaded through the side of the inner screw positioning plate 11, and its end can abut against the inner connecting plate 8; the inner screw displacement digital display 7 is installed on the outside of the inner screw positioning plate 11, and its detection end is linked with the inner ball screw adjuster 6 to display the screw displacement; the lower end of the inner connecting plate 8 is fixed to the inner upper shaft positioning block 28, and the inner upper shaft positioning block 28 is engaged with the inner end of the upper tool shaft.

[0027] The outer depth of cut adjustment digital display mechanism 2 corresponds to the inner structure. The outer ball screw adjuster 13 passes through the outer screw positioning plate 18 and is fixed to the outer connecting plate 15. The outer linear bushings 19 are sleeved on both sides of the outer connecting plate 15. The outer pluggable guide post 16 is inserted into the outer linear bushing 19 and fixed at both ends to the tool holder body and the outer screw positioning plate 18. The outer support top screw 17 is threaded through the side of the outer screw positioning plate 18 and its end can abut against the outer connecting plate 15. The outer screw displacement digital display 14 is installed on the outside of the outer screw positioning plate 18 and its detection end is linked with the outer ball screw adjuster 13. The lower end of the outer connecting plate 15 is fixed to the outer upper shaft positioning block 29 and the outer upper shaft positioning block 29 is engaged with the outer end of the upper tool shaft.

[0028] In the upper blade level measuring mechanism 5, the upper blade plane step pad 26 can be placed on the top plane of the upper blade holder, and the digital level 27 is laid flat on the horizontal end face of the upper blade plane step pad 26.

[0029] In the micrometer tool displacement adjustment mechanism 3, the upper spindle thread structure 20 is the external thread section at the end of the upper tool shaft. The inner hole of the graduated threaded adjustment pad 22 is threadedly engaged with the upper spindle thread structure 20, and one side of the threaded adjustment pad 22 abuts against the positioning end face of the upper tool shaft. The threaded fixing top block 21 is threaded through the side bracket of the upper tool holder, and its end can abut against the outer end face of the graduated threaded adjustment pad 22. The pad locking positioning block 30 is fixed to the upper tool holder bracket by screws, and its inner end can fit against the other end face of the graduated threaded adjustment pad 22, forming a bidirectional fixation.

[0030] In the laser ranging structure 4 for tool distance measurement, the laser ranging sensor 23 is fixed to the photometric laser sensor bracket 24 by screws, and a strong magnet 32 ​​is embedded in the bottom of the photometric laser sensor bracket 24; the tool avoidance pad 25 is a block-shaped structure fixed to the top of the lower tool holder, and its position corresponds to the detection path of the laser ranging sensor 23, which is used to prevent the laser from directly hitting the lower tool body; the inner spindle positioning block 31 is a raised positioning structure on the inner side of the lower tool holder, and the base plate 33 is the bottom support plate of the tool holder. The photometric laser sensor bracket 24 can be attracted to the connection between the inner spindle positioning block 31 and the base plate 33 by the strong magnet 32, so that the detection end of the laser ranging sensor 23 is aligned with the gap between the end faces of the upper and lower tools.

[0031] After removing the tool holder as a whole, loosen the fastening screws and simultaneously rotate the inner ball screw adjuster 6 and the outer ball screw adjuster 13 to rotate and move them, causing the inner connecting plate 8 and the outer connecting plate 15 to move up and down, which in turn causes the inner upper shaft positioning block 28 and the outer upper shaft positioning block 29 to move up and down. During the adjustment process, the inner screw displacement digital display 7 and the outer screw displacement digital display 14 have a stroke digital display structure. Adjust the position offset according to the display structure. After adjusting to the required position, rotate the inner and outer set screws to support the inner upper shaft positioning block 28 and the outer upper shaft positioning block 29. Then adjust the upper tool level measuring mechanism 5 so that the upper tool plane step pad 26 is horizontal and facing upward. Then place the digital display level ruler 27 on it and observe whether the upper tool shaft is horizontal. After it is horizontal, tighten the fastening screws to complete the depth of cut adjustment.

[0032] After the tool holder is removed as a whole, loosen the threaded fixing top block 21 and the pad locking positioning block 30. Rotate the graduated threaded adjusting pad 22. Under the combined action of the upper spindle thread structure 20, the adjusting pad moves left and right, thereby causing the upper tool position to move left and right. During the adjustment process, the tool distance laser ranging structure 4 needs to be placed on one side of the inner spindle positioning block 31 of the tool holder. Use the strong magnet 32 ​​embedded in the tool distance laser ranging structure 4 to make it fit tightly with the inner spindle positioning block 31 and the base plate 33. The red light of the optical ranging sensor is aligned with the upper and lower tool end faces for testing. After rotating the graduated threaded adjusting pad 22 to the required position, first lock the threaded fixing top block 21 and then lock the pad locking positioning block 30 to complete the tool distance adjustment.

[0033] For those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. An adjustable slitting blade holder, characterized in that, It includes an inner depth of cut screw adjustment digital display mechanism (1), an outer depth of cut adjustment digital display mechanism (2), a micrometer screw displacement adjustment mechanism (3), a displacement laser ranging structure (4), and an upper tool level measuring mechanism (5); the inner depth of cut screw adjustment digital display mechanism (1) and the outer depth of cut adjustment digital display mechanism (2) are respectively set on the inner and outer sides of the tool holder, the micrometer screw displacement adjustment mechanism (3) is installed on the spindle position on the tool holder, and the displacement laser ranging structure (4) and the upper tool level measuring mechanism (5) are both assembled at the corresponding detection positions of the tool holder.

2. The adjustable slitting blade holder according to claim 1, characterized in that, The inner depth of cut screw adjustment digital display mechanism (1) includes an inner ball screw adjuster (6), an inner screw displacement digital display (7), an inner connecting plate (8), an inner forming guide post (9), an inner support top screw (10), an inner screw positioning plate (11), and an inner linear bearing (12). The inner ball screw adjuster (6) passes through the inner screw positioning plate (11) and is connected to the inner connecting plate (8). The inner screw displacement digital display (7) is installed on the inner screw positioning plate (11). The inner forming guide post (9) is connected to the inner connecting plate (8) through the inner linear bearing (12). The inner support top screw (10) is set on one side of the inner screw positioning plate (11) and corresponds to the inner connecting plate (8).

3. The adjustable slitting blade holder according to claim 1, characterized in that, The outer depth of cut adjustment digital display mechanism (2) includes an outer ball screw adjuster (13), an outer screw displacement digital display (14), an outer connecting plate (15), an outer pluggable forming guide post (16), an outer support top screw (17), an outer screw positioning plate (18), and an outer linear bushing (19). The outer ball screw adjuster (13) passes through the outer screw positioning plate (18) and is connected to the outer connecting plate (15). The outer screw displacement digital display (14) is installed on the outer screw positioning plate (18). The outer pluggable forming guide post (16) is connected to the outer connecting plate (15) through the outer linear bushing (19). The outer support top screw (17) is located on one side of the outer screw positioning plate (18) and corresponds to the outer connecting plate (15).

4. The adjustable slitting blade holder according to claim 1, characterized in that, The micrometer displacement adjustment mechanism (3) includes an upper spindle thread structure (20), a threaded fixing top block (21), and a graduated threaded adjusting pad (22); the graduated threaded adjusting pad (22) is threadedly connected to the upper spindle thread structure (20), and the threaded fixing top block (21) is located on one side of the graduated threaded adjusting pad (22) and cooperates with the upper spindle thread structure (20).

5. The adjustable slitting blade holder according to claim 1, characterized in that, The laser ranging structure (4) for measuring the distance between the blades includes a laser ranging sensor (23), a photometric laser sensor bracket (24), and a blade avoidance pad (25). The laser ranging sensor (23) is mounted on the photometric laser sensor bracket (24), and the blade avoidance pad (25) is located at the corresponding position below the laser ranging sensor (23). A strong magnet (32) is provided on the photometric laser sensor bracket (24).

6. The adjustable slitting blade holder according to claim 1, characterized in that, The upper blade level measuring mechanism (5) includes an upper blade plane step pad (26) and a digital display level (27); the upper blade plane step pad (26) is set at the corresponding position of the upper blade holder, and the digital display level (27) is placed on the upper surface of the upper blade plane step pad (26).

7. The adjustable slitting blade holder according to claim 2, characterized in that, The inner connecting plate (8) is connected to the inner upper shaft positioning block (28). The inner ball screw adjuster (6) rotates to drive the inner connecting plate (8) to move up and down, thereby driving the inner upper shaft positioning block (28) to move synchronously.

8. The adjustable slitting blade holder according to claim 3, characterized in that, The outer connecting plate (15) is connected to the outer upper shaft positioning block (29). The outer ball screw adjuster (13) rotates to drive the outer connecting plate (15) to move up and down, thereby driving the outer upper shaft positioning block (29) to move synchronously.

9. The adjustable slitting blade holder according to claim 5, characterized in that, The photometric laser sensor bracket (24) is tightly attached to the inner spindle positioning block (31) and the base plate (33) by a strong magnet (32), and the red light of the laser range sensor (23) is aligned with the upper and lower blade end faces.

10. The adjustable slitting blade holder according to claim 4, characterized in that, The micrometer displacement adjustment mechanism (3) further includes a pad locking positioning block (30), which is located on the other side of the graduated threaded adjustment pad (22) and cooperates with the threaded fixing top block (21) to fix the graduated threaded adjustment pad (22).

Images