Slitting machine for lithium battery processing

Abstract

The invention relates to the technical field of lithium battery processing equipment, in particular to a slitting machine for lithium battery processing, which solves the problems existing in the adjusting process of a slitting cutter and comprises a base, a mounting frame is arranged on the base, a mounting shaft is mounted on the mounting frame, and a mounting seat capable of moving in the axis direction of the mounting shaft is sleeved outside the mounting shaft. The outer wall of the mounting base is provided with a circle of slitting cutters protruding outwards, the slitting cutters conduct slitting machining on materials passing through the slitting cutters, the outer wall of the mounting shaft is provided with a threaded groove which is parallel to the axis of the mounting shaft and extends towards the two sides, and an opening of the threaded groove faces outwards to form an open structure. An adjusting bolt parallel to the threaded groove is rotatably mounted on the mounting seat, the adjusting bolt is matched with threads of the threaded groove, the adjusting bolt is mounted in the threaded groove, and during adjustment, the adjusting bolt is rotated to drive the mounting seat to linearly move along the mounting shaft so as to accurately adjust the position of the slitting cutter on the mounting seat on the mounting shaft.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery processing equipment, in particular to a slitting machine for lithium battery processing. Background Art

[0002] As an indispensable energy storage device in modern society, lithium batteries are widely used in portable electronic devices, electric vehicles, energy storage power stations and other fields. The manufacturing of lithium batteries involves many complex links, and the slitting process, as a key link, has a decisive influence on the performance and quality of lithium batteries. In the production process of lithium batteries, the pole pieces are made by evenly coating active substances, adhesives, etc. on metal current collectors, and these pole pieces need to be cut by a slitting machine according to specific size specifications to ensure the precise implementation of the subsequent battery cell winding or stacking process.

[0003] At present, the slitting machine for lithium battery processing plays a key role in the production of lithium batteries, but it has the following shortcomings in the spacing adjustment of the slitting knife:

[0004] On the one hand, some slitting machines have the slitting knives fixedly mounted on the mounting shaft, and the spacing between the slitting knives lacks the flexibility to adjust. Once the spacing of the slitting knives needs to be adjusted, the mounting shaft must be replaced as a whole. This not only leads to slow adjustment efficiency of the slitting knives, which seriously prolongs the equipment downtime and greatly affects production efficiency, but also requires the installation shafts to be equipped with a variety of slitting knife spacings with different values, increasing the cost of the equipment.

[0005] On the other hand, most slitting machines slide the slitting knife on the mounting shaft, and then use fixings (such as top screws or bolts) to fix the position of the slitting knife. Although this type of slitting machine can adjust the position of the slitting knife, it is easy to deviate during adjustment and the adjustment efficiency is low. The specific description is as follows: when the position of the slitting knife needs to be adjusted, the staff must first use a measuring tool to determine the target position of the slitting knife. After that, loosen the fixing and manually push the slitting knife to move. When the slitting knife moves to the specified position, the staff needs to support the slitting knife with one hand and tighten the fixing with the other hand to fix it. However, in this process, a large torque will be generated when the fixing is tightened, which will act directly or indirectly on the mounting shaft, which can easily cause the slitting knife to deviate from the position. In addition, when manually supporting the slitting knife, it is difficult to keep the hand completely stable, and slight shaking will also cause the slitting knife to deviate from the predetermined position. Once the slitting knife deviates, it means that the previous measurement and adjustment work will be wasted, and the staff will have to re-measure and adjust, and repeat the operation many times to achieve a relatively ideal position. This method is not only cumbersome to operate, but also has a great impact on human factors, making it difficult to achieve millimeter-level or even finer adjustments. For example, when processing high-precision power battery pole pieces, if the position deviation of the slitting knife exceeds 0.5mm, it may cause the pole piece to be misaligned during the subsequent winding and stacking process, reducing battery performance and even generating waste. Therefore, this adjustment method not only consumes a lot of manpower and time, but also due to the inaccurate adjustment, it is difficult to ensure the consistency of the slitting size of lithium battery pole pieces, and cannot meet the high-precision and high-efficiency requirements of lithium battery production. Summary of the invention

[0006] 1. Technical issues to be resolved

[0007] In view of the deficiencies in the prior art, the present invention provides a slitting machine for lithium battery processing, which solves the problems existing in the adjustment process of the slitting knife.

[0008] (II) Technical solution

[0009] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a slitting machine for lithium battery processing, comprising a base, a mounting frame is provided on the base, a mounting shaft is installed on the mounting frame, a mounting seat is mounted on the outside of the mounting shaft and can move along the axial direction of the mounting shaft, a slitting knife is provided on the outer wall of the mounting seat and protrudes outward in a circle, the slitting knife performs slitting processing on the material passing through the slitting knife, a thread groove is provided on the outer wall of the mounting shaft which is parallel to the axis of the mounting shaft and extends to both sides, and the opening of the thread groove is outward to form an open structure, an adjusting bolt parallel to the thread groove is rotatably installed on the mounting seat, and the adjusting bolt matches the thread of the thread groove, the adjusting bolt is installed in the thread groove, and during adjustment, the mounting seat is driven to move linearly along the mounting axis by rotating the adjusting bolt to accurately adjust the position of the slitting knife on the mounting seat on the mounting shaft.

[0010] Furthermore, a mounting groove for mounting an adjusting bolt is provided on the inner wall of the mounting seat, and the inner diameter of the mounting groove is larger than the outer diameter of the adjusting bolt.

[0011] Furthermore, a connecting block is fixedly connected to the mounting seat, a connecting shaft is provided on the connecting block, a slot for inserting the connecting shaft is provided inside the adjusting bolt, and the slot is coaxial with the adjusting bolt, a flange body is fixedly provided on the outer wall of the connecting shaft, an end cover is fixedly provided on the end of the adjusting bolt, a slot matching the flange body is provided inside the end cover, and the flange body and the slot cooperate to allow the adjusting bolt and the connecting shaft to rotate and prevent the two from undergoing axial relative displacement.

[0012] Furthermore, a screwing piece penetrating through the outer wall of the mounting seat is rotatably mounted on the mounting seat, and the screwing piece is connected to the adjusting bolt via a transmission assembly, which realizes force transmission between the screwing piece and the adjusting bolt and changes the transmission direction of the force.

[0013] Furthermore, the transmission assembly is a bevel gear, a bevel gear 1 is coaxially arranged on one end of the screwing member located inside the mounting seat, a bevel gear 2 is coaxially arranged on the adjusting bolt, and the bevel gear 1 and the bevel gear 2 are meshed with each other.

[0014] Furthermore, a protective cover is detachably mounted on one side of the exterior of the mounting seat, and the protective cover is used to protect the slitting knife.

[0015] Furthermore, the protective cover is arranged in an arc shape as a whole, the overall circumference arc C of the protective cover is ≤180°, and the overall circumference arc C of the protective cover is ≥60°, and a tool groove for inserting a tool into the interior of the protective cover is provided.

[0016] Furthermore, a card block is fixedly provided on the outer wall of the mounting seat, a slide groove is provided on the protective cover for the card block to be inserted into, a hollow mounting cavity is provided inside the card block, a "V"-shaped spring sheet is installed in the mounting cavity, a positioning bead is installed on the outer wall of the card block, the positioning bead passes through the outer wall of the card block, one end of the positioning bead is connected to the spring sheet, the spring sheet provides elastic force for the positioning bead to protrude outward, and the outward protruding end of the positioning bead is arranged in an arc shape, and a positioning groove is provided on the outer wall of the protective cover for the positioning bead to be inserted into.

[0017] Furthermore, an iron sheet is fixedly provided on the outer wall of the mounting seat, and a magnetic sheet is provided on the inner wall of the protective cover in contact with the mounting seat. The magnetic sheet cooperates with the iron sheet to mount the protective cover on the mounting seat by magnetic adsorption.

[0018] Further, scales are marked on the outer wall of the mounting shaft, an observation port penetrating through its outer wall is formed on the mounting seat, a marker is installed in the observation port, and the marker is aligned with the position of the screwing member. Through the observation port, the scales on the mounting shaft can be observed from the outside of the mounting seat, and the position of the slitting knife on the mounting seat can be adjusted with reference to the marker and the scales.

[0019] (III) Beneficial Effects

[0020] Compared with the prior art, the present invention provides a slitting machine for lithium battery processing, having the following beneficial effects:

[0021] In the slitting machine for lithium battery processing, through the arrangement of the threaded groove and the adjusting bolt, the threaded groove is parallel to the axis of the mounting shaft and extends towards both sides, and the opening of the threaded groove faces outwards to form an open structure; the adjusting bolt is rotatably installed on the mounting seat and is parallel to the threaded groove, and the thread of the adjusting bolt matches the thread of the threaded groove, and the adjusting bolt is installed in the threaded groove. When adjusting the slitting knife, the position of the slitting knife on the mounting seat on the mounting shaft can be accurately adjusted by rotating the adjusting bolt. According to the characteristics of the threaded structure, the threaded structure converts the rotational movement of the adjusting bolt into a linear movement of the mounting seat along the mounting shaft, and for each rotation of a certain angle, the moving distance of the mounting seat is fixed and can be accurately calculated. For example, if the thread pitch is 1 mm, when the adjusting bolt rotates one week, the mounting seat will move 1 mm along the mounting shaft. By accurately controlling the number of rotation turns and the angle of the adjusting bolt, the operator can control the adjustment accuracy of the slitting knife within ±0.1 mm or even higher. This accuracy far exceeds the traditional manual adjustment method, effectively reducing the defective rate caused by the position deviation of the slitting knife, improving the overall quality of lithium battery production, and at the same time improving the adjustment efficiency without repeated adjustments.

[0022] Moreover, by utilizing the thread fit between the adjusting bolt and the threaded groove, not only the position adjustment of the slitting knife is realized, but also the stability of fixing the position of the slitting knife is improved. When the slitting knife reaches the target position, the adjusting bolt, like a nut, tightly engages with the threaded groove. This tight threaded connection method can provide stable frictional force and locking force, effectively resisting various external forces received by the slitting knife during the working process, ensuring that the slitting knife always remains in the preset position. Even under the long-term and high-load operation of the slitting machine, the position stability of the slitting knife can still be reliably guaranteed, and the stability of the slitting knife is significantly improved, ensuring high-intensity and high-efficiency production. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0024] Figure 2 is the present invention Figure 1 is a partial enlarged structural schematic diagram of the part A shown in the present invention;

[0025] Figure 3 It is a schematic diagram of the three-dimensional structure of the mounting shaft and the supporting shaft of the present invention;

[0026] Figure 4 It is a schematic diagram of the first three-dimensional structure of the slitting knife and the mounting seat of the present invention;

[0027] Figure 5 For the present invention Figure 4 A schematic diagram of the structure of the local enlargement of point B shown in FIG.

[0028] Figure 6 It is a second three-dimensional structural schematic diagram of the slitting knife and the mounting seat of the present invention;

[0029] Figure 7 For the present invention Figure 6 A schematic diagram of the structure partially enlarged at C shown in FIG.

[0030] Figure 8 It is a schematic cross-sectional view of the slitting knife and the mounting seat of the present invention;

[0031] Fig. 9 For the present invention Figure 8 A schematic diagram of the structure partially enlarged at E shown in FIG.

[0032] Fig.10 For the present invention Figure 8 A schematic diagram of the structure partially enlarged at H shown in FIG.

[0033] Fig.11 It is a structural schematic diagram of the first opening position of the thread groove on the mounting shaft of the present invention;

[0034] Fig.12 It is a structural schematic diagram of the second opening position of the thread groove on the mounting shaft of the present invention;

[0035] Fig.13 It is a schematic diagram of the three-dimensional structure of the protective cover installed on the slitting knife of the present invention;

[0036] Fig.14 It is a cross-sectional structural schematic diagram of a protective cover installed on a slitting knife of the present invention;

[0037] Fig.15 For the present invention Fig.14 A schematic diagram of the structure partially enlarged at F shown in FIG.

[0038] Fig.16 A schematic diagram of the three-dimensional structure of the first embodiment of the protective cover of the present invention;

[0039] Fig.17 For the present invention Fig.15 A schematic diagram of the structure partially enlarged at H shown in FIG.

[0040] Fig.18 A schematic diagram of the three-dimensional structure of the second embodiment of the protective cover of the present invention;

[0041] Fig.19 It is a schematic cross-sectional view of the three-dimensional connection between the adjusting bolt and the connecting shaft of the present invention;

[0042] Fig. 20 It is a front view structural schematic diagram of the protective cover of the present invention.

[0043] In the figure: 1. base; 2. receiving platform; 3. mounting frame; 4. supporting shaft; 5. mounting shaft; 6. knife seat; 7. mounting seat; 8. slitting knife; 9. adjusting bolt; 10. threaded groove; 11. mounting groove; 12. connecting block; 13. connecting shaft; 14. slot; 15. flange body; 16. end cover; 17. slot; 18. screw; 19. bevel gear one; 20. bevel gear two; 21. protective cover; 22. knife groove; 23. block; 24. slide; 25. mounting cavity; 26. spring sheet; 27. positioning bead; 28. positioning groove; 29. ​​iron sheet; 30. magnetic sheet; 31. observation port; 32. marker; 33. scale; 34. slider; 35. lead screw; 36. handle; 37. reducer; 38. drive motor; 39. buffer plate; 40. gap; 41. top screw. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] The slitting machine in the prior art includes a base 1, on which a mounting frame 3 is provided. The mounting frame 3 plays a supporting and fixing role, and a support shaft 4 and a mounting shaft 5 are installed on the mounting frame 3. The support shaft 4 is mainly used to carry the material for lithium battery processing (hereinafter referred to as the material), and a slitting knife 8 is installed on the mounting shaft 5. The slitting knife 8 cooperates with the support shaft 4 to slitting the passing material for lithium battery processing. When pursuing higher slitting accuracy, some equipment will install a knife seat 6 on the outside of the support shaft 4, and the knife seat 6 can move along the axial direction of the support shaft 4. The slitting knife 8 cooperates with the knife seat 6 to more accurately cut the material for lithium battery processing and improve the slitting quality of the product.

[0046] In terms of fixing methods, in conventional slitting equipment, whether the slitting knife 8 is installed on the mounting shaft 5 or the knife holder 6 is installed on the supporting shaft 4, bolts, top screws 41 and other fixing parts are generally used for fixing. By tightening the bolts or top screws 41, the position of the slitting knife 8 and the knife holder 6 is fixed to maintain stability during the slitting operation. However, this type of fixing method exposes problems such as inconvenient adjustment and poor adjustment accuracy during actual use.

[0047] See also Figure 1-3 The lithium battery processing slitting machine of the present invention includes an adjustable spacing between the mounting shaft 5 and the support shaft 4, wherein the support shaft 4 is rotatably connected to the mounting frame 3 and the mounting position is fixed, a slider 34 connected to the mounting shaft 5 is slidably installed in the mounting frame 3, and the two are rotatably connected, a lead screw 35 is threadedly connected to the mounting frame 3, the lead screw 35 is threadedly connected to the mounting frame 3, and one end is rotatably connected to the slider 34, and the other end of the lead screw 35 is provided with a handle 36 for screwing the lead screw 35, and the position of the slider 34 is adjusted by screwing the handle 36 to drive the lead screw 35 to rotate, thereby adjusting the spacing between the mounting shaft 5 and the support shaft 4, thereby adjusting the position of the slitting knife 8 and the knife seat 6. The adjustment method of the spacing between the mounting shaft 5 and the support shaft 4 is not limited to the content described above, and the spacing between the two can also be adjusted by adjusting the position of the support shaft 4.

[0048] like Figure 1 As shown in FIG. 2 , the rotation of the installation shaft 5 is powered by a drive motor 38. When the drive motor 38 is running, its rotating end transmits power to the installation shaft 5 through the reducer 37, so as to realize the stable rotation of the installation shaft 5, thereby driving the slitting knife 8 to rotate to slit the material. The drive motor 38 is mounted on the reducer 37, and the reducer 37 is mounted on the slider 34, and the slider 34 keeps moving in coordination during the position adjustment process.

[0049] The power transmission between the drive motor 38 and the mounting shaft 5 is not limited to the transmission of the reducer 37. According to the actual working conditions and equipment requirements, other transmission devices such as belt transmission and chain transmission can also be used to efficiently and reliably transmit the power generated by the drive motor 38 to the mounting shaft 5 to drive the slitting knife 8 to operate.

[0050] The mounting shaft 5 is an important component for mounting the slitting knife 8 in the slitting machine, and a mounting seat 7 is mounted on the outside of the mounting shaft 5. The mounting seat 7 can be flexibly moved along the axial direction of the mounting shaft 5. This movable feature provides a basis for adjusting the position of the slitting knife 8. The slitting knife 8 is mounted on the mounting seat 7, specifically, it is fixed around the outer wall of the mounting seat 7, and the slitting knife 8 is in an outward protruding state. The slitting knife 8 can change its position on the mounting shaft 5 synchronously when the mounting seat 7 moves, so that in the lithium battery processing process, for the processing materials with different size requirements, the mounting seat 7 is adjusted to drive the slitting knife 8 to move to the appropriate position, so as to achieve precise slitting operation of the material.

[0051] like Figure 1-3 As shown in FIGS. 14 and 18, the outer wall of the mounting shaft 5 is provided with a thread groove 10 which is parallel to its own axis and extends to both sides. The thread groove 10 opens outward and presents an open structure. The adjusting bolt 9 is rotatably mounted on the mounting seat 7. The adjusting bolt 9 is not only parallel to the thread groove 10, but its thread also precisely matches the thread of the thread groove 10. The adjusting bolt 9 is installed in the thread groove 10. The opening of the thread groove 10 is to achieve the connection between the adjusting bolt 9 and the mounting seat 7 (the connection relationship and the connection device between the two will be described in detail below).

[0052] The principle of thread transmission is based on the characteristics of the screw pair. When the adjusting bolt 9 rotates in the thread groove 10, due to the mechanical constraint of the thread, the circular motion of the adjusting bolt 9 is converted into linear motion along the axial direction of the thread groove 10. For example, when an ordinary nut rotates on a bolt, the nut moves along the axial direction of the bolt. Here, the adjusting bolt 9 and the thread groove 10 are similar to the relationship between the nut and the bolt. Every time the adjusting bolt 9 rotates one circle, it moves along the thread groove 10 by a pitch. With the fixedness of the thread pitch, precise linear displacement is achieved.

[0053] During the adjustment of the slitting knife 8, the staff rotates the adjusting bolt 9 on the mounting seat 7, and with the help of the stable friction and mechanical force between the threads, drives the mounting seat 7 to move linearly along the mounting shaft 5. Because the pitch is precisely fixed, by controlling the number of rotations and angles of the adjusting bolt 9, the moving distance of the mounting seat 7 can be accurately controlled, and then the slitting knife 8 on the mounting seat 7 can be accurately adjusted to the target position on the mounting shaft 5, meeting the high-precision requirements for the position of the slitting knife 8 in lithium battery material processing.

[0054] like Figure 4-5As shown, a connecting block 12 is fixedly connected to the mounting seat 7, and the connecting block 12 can be installed on the inner wall of the mounting seat 7, or fixed on the end surface of one side of the mounting seat 7. The thread groove 10 mentioned above has an opening facing outward. The main purpose of this opening design is to enable the connecting block 12 on the mounting seat 7 to smoothly enter the thread groove 10. After the connecting block 12 enters the thread groove 10, it is connected to the adjusting bolt 9 in the thread groove 10.

[0055] In the first connection mode of the rotational connection between the adjusting bolt 9 and the mounting seat 7, one end of the adjusting bolt 9 is directly rotationally connected to the connecting block 12, and there is a certain damping force between the two, and no relative axial displacement occurs. When the adjusting bolt 9 rotates, it moves axially along the thread groove 10. Since the adjusting bolt 9 and the connecting block 12 do not have relative axial displacement, the connecting block 12 will move with the movement of the adjusting bolt 9. And because the connecting block 12 is fixedly connected to the mounting seat 7, the mounting seat 7 will also move synchronously, thereby driving the slitting knife 8 on the mounting seat 7 to move.

[0056] like Figure 4 , 5 , 8, 9, and 19 show a second connection method in which the adjusting bolt 9 is rotatably connected to the mounting seat 7. A connecting shaft 13 is provided on the connecting block 12, and a slot 14 with an open end is machined inside the adjusting bolt 9. The slot 14 is coaxial with the adjusting bolt 9, so that the connecting shaft 13 can be inserted into the slot 14. The outer diameter of the connecting shaft 13 matches the inner diameter of the slot 14, so that the outer wall of the connecting shaft 13 and the inner wall of the slot 14 are evenly stressed, and the adjusting bolt 9 and the connecting shaft 13 have a certain damping force. Compared with the first connection method in which only one end of the adjusting bolt 9 is connected to the connecting block 12, this design of inserting the connecting shaft 13 into the adjusting bolt 9 greatly enhances the stress stability of the adjusting bolt 9, and makes the rotating of the adjusting bolt 9 smoother.

[0057] A circle of flange body 15 is fixedly provided on the outer wall of the connecting shaft 13, and an end cover 16 is fixedly installed on the end of the adjusting bolt 9. A slot 17 that precisely matches the flange body 15 is provided inside the end cover 16. The flange body 15 rotates in the slot 17, so that the adjusting bolt 9 and the connecting shaft 13 can only rotate relative to each other around a common axis, and in the axial direction, the two cannot produce any relative displacement. Due to the restrictions of the flange body 15 and the slot 17, the rotational movement of the adjusting bolt 9 can be smoothly transmitted to the connecting shaft 13, thereby driving the connecting block 12 to move. Because the connecting block 12 is fixedly connected to the mounting seat 7, the mounting seat 7 will move accordingly, and finally realize the synchronous movement of the slitting knife 8 on the mounting seat 7, meeting the demand for precise adjustment of the position of the slitting knife 8 in the slitting process of the lithium battery material.

[0058] After the position of the slitting knife 8 is adjusted, the position of the tool holder 6 can also be adjusted by moving along the axis direction of the support shaft 4. For the adjustment of the position of the tool holder 6, the following two methods are provided in this design.

[0059] First, as Figure 3 shown, for the adjustment method of the tool holder 6, the adjustment method of the mounting seat 7 by using the adjusting bolt 9 and the thread groove 10 described above can be adopted. After the slitting knife 8 is adjusted to the appropriate position by the adjusting bolt 9, the precise fine-tuning of the position of the tool holder 6 can be realized by means of the adjusting bolt 9. Second, the traditional set screw 41 method is used for adjustment. Just loosen the set screw 41, the tool holder 6 is translated along the support shaft 4, move the tool holder 6 to closely abut against the side of the slitting knife 8 and then tighten the set screw 41 to fix the tool holder 6.

[0060] When adjusting the positions of the slitting knife 8 and the tool holder 6, in order to meet the requirements of efficient adjustment, after comprehensive consideration, it is preferred to use the second method of using the set screw 41 to fix the position of the tool holder 6. When the slitting knife 8 is accurately adjusted to the appropriate position by the cooperation of the adjusting bolt 9 and the thread groove 10, the tool holder 6 only needs to be translated to the side of the slitting knife 8 and closely abut. At this time, by tightening the set screw 41, the tool holder 6 can be quickly fixed in the appropriate position.

[0061] If the first method of accurately matching the adjusting bolt 9 and the thread groove 10 is still adopted, although the adjustment can be more accurate, it will seriously reduce the overall adjustment efficiency. The traditional set screw 41 adjustment method has simple operation steps and can effectively improve the adjustment efficiency. Therefore, in the adjustment operation of the position of the tool holder 6, it is preferred to recommend the traditional set screw 41 adjustment method.

[0062] The position where the thread groove 10 is opened on the mounting shaft 5 has an important influence on the cooperation between the adjusting bolt 9 and the mounting seat 7. Therefore, the setting position of the thread groove 10 needs to be further explained, and there are the following two setting methods of the position.

[0063] As Fig.11 shown, when the sum of the distance L1 between the center of the thread groove 10 and the center of the mounting shaft 5 and the maximum diameter D of the thread groove 10 is greater than the radius R of the mounting shaft 5, the adjusting bolt 9 installed in the thread groove 10 will protrude from the outer wall of the mounting shaft 5. At this time, in order to ensure that the installation and normal operation of the adjusting bolt 9 are not affected, an installation groove 11 needs to be opened on the inner wall of the mounting seat 7 for specifically installing the adjusting bolt 9. The radius of the installation groove 11 is slightly larger than the diameter of the adjusting bolt 9. The opening of the thread groove 10 is for the top of the adjusting bolt 9 to pass through.

[0064] The position of the thread groove 10 makes the adjusting bolt 9 more inclined to the outside of the mounting shaft 5, so it is more convenient to adjust the adjusting bolt 9. After the mounting groove 11 is set on the inner wall of the mounting seat 7, the inner wall of the mounting seat 7 and the outer wall of the mounting shaft 5 are tightly fitted except for the area of ​​the mounting groove 11. The stability of the mounting seat 7 during the movement along the mounting shaft 5 is guaranteed, and the adjustment function of the slitting knife 8 is ensured to be stable and reliable.

[0065] like Fig.12 As shown, when the distance L2 between the center of the thread groove 10 and the center of the mounting shaft 5 and the sum of the maximum diameter D of the thread groove are less than the radius R of the mounting shaft, the adjusting bolt 9 installed in the thread groove 10 will not protrude from the outer wall of the mounting shaft 5. The position of this thread groove 10 does not require the installation groove 11 to be provided on the inner wall of the mounting seat 7, which reduces the processing steps and the complexity of the equipment. The opening of the thread groove 10 is for the connection block 12 to pass through.

[0066] The position of the thread groove 10 makes the adjusting bolt 9 closer to the inside of the mounting shaft 5 and closer to the center of the mounting shaft 5. When the adjusting bolt 9 is rotated, the mounting seat 7 and the slitting knife 8 move more stably.

[0067] like Fig.14 , 16 As shown in Figures 18 and 19, when operating the adjusting bolt 9, in order to facilitate the application of force, a polygonal groove recessed into the interior of the adjusting bolt 9 can be provided at the end of the adjusting bolt 9, or a polygonal protrusion protruding outward can be provided, or a polygonal force-bearing surface can be provided around the adjusting bolt 9.

[0068] The adjusting bolt 9 is installed in the mounting groove 11. Due to the spatial layout, the operator's hand movement space is limited when performing the adjustment operation. Therefore, this adjustment method is only suitable for small-range and small-amplitude adjustment operations. In actual operation, there are problems such as narrow operating space and difficulty in operation. Although the operation convenience is poor, with the help of an adapted tool, the adjusting bolt 9 can still be operated using the screw 18 to achieve small-range and precise adjustment of the position of the mounting seat 7 and the slitting knife 8.

[0069] Since the adjusting bolt 9 is parallel to the axis of the mounting shaft 5, the screwing structure is arranged at the end of the adjusting bolt 9, which is limited in space by the thread groove 10, making it inconvenient to operate the adjusting bolt 9. Figure 6-10As shown, a screwing piece 18 penetrating the outer wall of the mounting seat 7 is rotatably installed, and the installation position can be flexibly set according to the working direction of the operator, for example, the screwing piece 18 is parallel to the radial direction of the mounting seat 7, so that the screwing piece 18 can face the operator, which greatly improves the convenience of operation. Between the screwing piece 18 and the adjusting bolt 9, a bevel gear is used to realize the steering transmission. Specifically, the screwing piece 18 is located at one end inside the mounting seat 7, and a bevel gear 19 is coaxially installed; the adjusting bolt 9 is coaxially provided with a bevel gear 20, and the bevel gear 19 and the bevel gear 20 are meshed with each other. When the staff rotates the screwing piece 18, the screwing piece 18 drives the bevel gear 19 to rotate synchronously. Due to the unique tooth surface structure of the bevel gear, the meshing bevel gear 19 transmits the rotation to the bevel gear 20, thereby driving the adjusting bolt 9 to rotate. The effective transmission of force from the screwing piece 18 to the adjusting bolt 9 is realized, and the transmission direction of the force is also changed.

[0070] The rotation transmission between the screwing member 18 and the adjusting bolt 9 can also be realized by a transmission component such as a worm gear. A worm is arranged at the end of the screwing member 18 at the adjusting bolt 9, and a worm wheel is arranged correspondingly. When the operator rotates the screwing member 18, the worm connected thereto starts to rotate synchronously. The rotation of the worm will drive the worm wheel meshing therewith to rotate, and then transmit the force to the adjusting bolt 9. In this process, through the cooperation of the worm wheel and the worm, the effective transmission of force from the screwing member 18 to the adjusting bolt 9 is realized, and the transmission direction of the force is also changed.

[0071] Placing the screwing member 18 at a position convenient for the operator to operate not only ensures the precise control of the adjusting bolt 9, but also greatly improves the convenience of equipment operation.

[0072] Similarly, a polygonal groove sunken into the screw member 18 may be provided at the end of the screw member 18 , or a polygonal protrusion protruding outward may be provided, or a polygonal force-bearing surface may be provided around the screw member 18 .

[0073] like Figure 1-3 As shown, in order to achieve accurate adjustment of the position of the slitting knife 8 on the mounting seat 7, the outer wall of the mounting shaft 5 is provided with a scale 33. The scale 33 is accurately marked with a standard spacing according to the adjustment accuracy requirements of the equipment, providing a quantitative reference for the position adjustment of the slitting knife 8.

[0074] like Figure 6 , 16As shown in Figures 1 and 18, the mounting seat 7 of the present invention is provided with an observation port 31 that runs through its outer wall. A marker 32 is installed in the observation port 31, and the marker 32 is precisely aligned with the position of the screw 18. Different from the traditional method of using the end face of the mounting seat 7 or the position of the slitting knife 8 as a position reference, the traditional method requires the operator to frequently switch his sights and shift his attention between the adjustment device and the reference position during adjustment, resulting in poor operation continuity and low efficiency. In the present invention, when the operator rotates the screw 18 to adjust the position of the slitting knife 8, the mounting seat 7 will move along the mounting shaft 5. At this time, the operator only needs to keep his sight focused on the observation port 31, and he can rotate the screw 18 while observing the marker 32 synchronously. Through the observation port 31, the operator can clearly see the scale 33 on the mounting shaft 5 from the outside of the mounting seat 7. By comparing the relative positions of the marker 32 and the scale 33, the current position and position change of the slitting knife 8 can be intuitively and accurately determined, so as to accurately adjust the position of the slitting knife 8 on the mounting seat 7 according to the processing requirements. This design greatly improves the accuracy and efficiency of the position adjustment of the slitting knife 8, significantly improves the convenience and continuity of operation, and meets the requirements of high-precision production scenarios such as lithium battery processing.

[0075] In the existing position adjustment operation of the slitting knife 8, the top screw and bolt of the mounting seat 7 or the slitting knife 8 must be loosened first before the position of the slitting knife 8 can be adjusted. The blade of the slitting knife 8 is distributed in a circle and faces outward. During the position adjustment process of the slitting knife 8, since the slitting knife 8 is in a loosened state, the slitting knife 8 can rotate freely along the mounting shaft 5, and the operator is very likely to be scratched by the sharp blade due to accidental touch.

[0076] If a protective device is used to reduce this risk, since the slitting knife 8 can rotate along the installation axis 5, the entire periphery of the slitting knife 8 needs to be fully wrapped to achieve effective protection. However, this type of protective placement is not only complex for the slitting knife 8, but also the installation and removal process is relatively cumbersome, which greatly affects the maintenance convenience and work efficiency of the equipment. For example, two semicircular protective devices are usually used to wrap the slitting knife 8 on both sides for protection, which is troublesome to install and remove.

[0077] In the traditional slitting knife 8 adjustment scenario, the slitting knife 8 is in a loose state during adjustment and can rotate arbitrarily, posing a serious safety hazard, and the slitting knife 8 as a whole often needs to be protected in all directions. In contrast, the present invention adjusts the slitting knife 8 through the adjusting bolt 9, and the slitting knife 8 will not rotate arbitrarily during the adjustment process. Due to the deadweight of the reducer 37 and the mounting shaft 5, the mounting shaft 5 is also not likely to rotate arbitrarily during the adjustment process. The force driving the mounting shaft 5 to rotate is much greater than the force driving the traditional slitting knife 8 to rotate. The slitting knife 8 in this patent rotates synchronously with the mounting shaft 5, so the slitting knife 8 is not likely to rotate during the adjustment process. Based on this feature, Fig.13 ,14 As shown in FIGS. 16, 18 and 20, the present invention provides a detachable protective cover 21 outside the mounting seat 7. The protective cover 21 is designed in an arc shape, and the overall circumference arc C is ≤ 180°. A special knife groove 22 is provided inside the protective cover, and the slitting knife 8 can be smoothly inserted. When the operator turns the adjusting bolt 9, the protective cover 21 only needs to be installed on the side of the slitting knife 8 close to the operating adjusting bolt 9 for protection, so as to prevent the slitting knife from scratching the operator's hand during the adjustment process.

[0078] The protective cover 21 adopts an arc design, and the overall circumference arc C ≤ 180° not only reduces the material cost of the protective cover 21, but also greatly improves the convenience of installation and removal. The operator can easily complete the installation and removal operations from one side. Further explanation: For the safety of protection, the angle of the protective cover 21 is not too small. The overall circumference arc C of the protective cover 21 is ≥ 60°.

[0079] In order to further improve the convenience of installation and removal of the protective cover 21, this patent provides two specific implementation methods. It should be emphasized that this patent is not limited to these two methods. Any device that can realize the convenient disassembly and assembly of the protective cover 21 is applicable to this technical solution. These two implementation methods are intended to more intuitively explain the structure of the convenient disassembly and assembly of the protective cover 21.

[0080] The first embodiment of the installation of the protective cover 21 is as follows Figure 14-17 As shown, a block 23 is fixedly provided on the outer wall of the mounting seat 7, and correspondingly, a slide groove 24 is provided on the protective cover 21 for the insertion of the block 23 on the mounting seat 7, so as to guide and limit the positioning bead 27 in the following text so that it can accurately enter the positioning groove 28. A hollow mounting cavity 25 is provided inside the block 23, and a "V"-shaped spring sheet 26 is installed in the mounting cavity 25. A movable positioning bead 27 is installed on the outer wall of the block 23, and the positioning bead 27 passes through the outer wall of the block 23, and one end is connected to the "V"-shaped spring sheet 26. The "V"-shaped spring sheet 26 relies on its structure and elastic force to provide the positioning bead 27 with an elastic force to protrude outward, so that the positioning bead 27 can remain in a protruding state stably. The end of the positioning bead 27 protruding outward is designed to be arc-shaped to ensure smooth movement of the positioning bead 27.

[0081] The outer wall of the protective cover 21 is provided with a positioning groove 28, and the positioning groove 28 and the positioning bead 27 are precisely matched in size and position. When installing the protective cover 21, after the block 23 is inserted into the slide groove 24, the positioning bead 27 is quickly embedded in the positioning groove 28 under the elastic force of the spring sheet 26, and the protective cover 21 is firmly fixed on the mounting seat 7. When the protective cover 21 needs to be removed, it is only necessary to apply a certain external force to the positioning bead 27 to overcome the elastic force of the spring sheet 26, so that the positioning bead 27 is separated from the positioning groove 28, and the protective cover 21 can be easily removed.

[0082] The second embodiment of the installation of the protective cover 21 is as follows Fig.18As shown, in the present embodiment, in order to realize the quick and convenient installation and removal of the protective cover 21, the connection structure between the protective cover 21 and the mounting seat 7 is designed by using the principle of magnetic adsorption. An iron sheet 29 is arranged on the outer wall of the mounting seat 7, and correspondingly, a magnetic sheet 30 is arranged on the inner wall where the protective cover 21 and the mounting seat 7 are in contact. By virtue of the magnetic force between the iron sheet 29 and the magnetic sheet 30, the two attract each other to complete the installation of the protective cover 21; when disassembling, a certain external force is applied to overcome the magnetic force, so that the protective cover 21 can be easily removed. It is worth mentioning that the installation positions of the iron sheet 29 and the magnetic sheet 30 are not fixed, and the iron sheet 29 can also be arranged on the inner wall of the protective cover 21, and the magnetic sheet 30 can be arranged on the outer wall of the mounting seat 7, and the installation of the protective cover 21 can also be realized by means of magnetic adsorption.

[0083] In addition, the protection of the installation structure of the protective cover 21 by this patent is not limited to the above-mentioned embodiments. Any device that can realize convenient installation and removal of the protective cover 21 is within the scope of the technical solution of this patent.

[0084] like Figure 1 As shown, a receiving platform 2 is provided on the base 1 and downstream of the slitting knife 8. After the material is slitting by the slitting knife 8, it will naturally fall onto the receiving platform 2. The receiving platform 2 can support and transition the slitting material to prevent the slitting material from being deformed and damaged due to direct falling. At the same time, the orderly transition of the slitting material on the receiving platform 2 ensures the smooth connection between the slitting process and the subsequent processing links, and improves the stability of lithium battery processing to a certain extent.

[0085] like Figure 1 As shown, in order to further enhance the protection effect of the material used for processing the lithium battery after slitting, an upwardly arched arc-shaped elastic buffer plate 39 is provided on the receiving platform 2.

[0086] The buffer plate 39 includes a variety of elastic materials. Metal materials with excellent elasticity can be selected, such as metals used to process springs, which can quickly restore their original shape while bearing impact force, providing stable and reliable buffer protection for the cut materials; plastic materials have the advantages of light weight, low cost and simple molding process, and the shape and structure of the buffer plate 39 can be flexibly designed according to actual needs; rubber materials are known for their high elasticity, high wear resistance and good sound insulation and shock absorption performance, and can effectively absorb the impact force generated when the material falls.

[0087] The buffer plate 39 has a unique arched shape, and a certain gap 40 is deliberately reserved between it and the inside of the receiving platform 2. An efficient buffer space is constructed. When the cut lithium battery material falls onto the arc-shaped elastic buffer plate 39 at high speed, the buffer plate 39 first relies on its own elastic properties and structural characteristics to preliminarily eliminate the impact force of the material. At the same time, the gap 40 between the buffer plate 39 and the receiving platform 2 provides sufficient deformation space for the buffer plate 39 when it is impacted. Therefore, the buffer plate 39 can avoid the hard collision between the expensive lithium battery processing material and the receiving platform 2 in an all-round and multi-level manner, prevent the surface of the material from being scratched and the internal structure from being damaged, and enhance the protection of the material in all directions. It not only reduces the defective rate in the lithium battery processing process, but also reduces the cost waste caused by material damage, significantly improves the reliability of the equipment in the lithium battery processing process, and provides a strong guarantee for the high-quality development of lithium battery production.

[0088] To sum up, when using this slitting machine for lithium battery processing, the handle 36 on the screw 35 is turned to increase the distance between the mounting shaft 5 and the support shaft 4, so that there is a certain distance between the slitting knife 8 and the knife seat 6, ensuring that the slitting knife 8 can move freely along the mounting shaft 5 and the knife seat 6 will not block the slitting knife 8.

[0089] The adjusting bolt 9 is rotated to rotate in the thread groove 10, driving the mounting seat 7 to move along the mounting axis 5. At the same time, the staff observes the marker 32 and the scale 33 through the observation port 31 to adjust the slitting knife 8 to a suitable position.

[0090] After the position of the slitting knife 8 is determined, the knife seat 6 corresponding to the slitting knife 8 is moved to correspond to the slitting knife 8 one by one and misplaced. In this way, when the screw 35 is screwed to make the mounting shaft 5 and the support shaft 4 close, the knife seat 6 will not hinder the slitting knife 8 from approaching.

[0091] After the mounting shaft 5 is adjusted to a suitable position, the knife holder 6 is translated on the support shaft 4 so that it fits on one side of the slitting knife 8, and the knife holder 6 is fixed with the top screw 41. After completing the above steps, the material to be processed can be fed between the slitting knife 8 and the knife holder 6 for slitting processing. The slitting material then falls on the buffer plate 39, which not only provides support and buffering for the slitting material, but also helps it to smoothly transition, ensuring the connection between the subsequent processing and collection links.

[0092] Before screwing the adjusting bolt 9, the staff must install the protective cover 21 to the side of the protective knife and ensure that the protective cover 21 is close to the screwing position. During the screwing process, the protective cover 21 can effectively block the slitting knife 8 to prevent it from scratching and straining the operator's hands, providing safety protection for the staff's operation.

[0093] Although 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 appended claims and their equivalents.

Claims

1. A slitting machine for processing lithium batteries, comprising a base (1), a mounting frame (3) being arranged on the base (1), a mounting shaft (5) being arranged on the mounting frame (3), a mounting seat (7) being arranged on the outside of the mounting shaft (5) and being movable along the axial direction of the mounting shaft (5), a slitting knife (8) protruding outwardly being arranged on the outer wall of the mounting seat (7), the slitting knife (8) performing slitting processing on the material passing through the slitting knife (8), characterized in that: The outer wall of the installation shaft (5) is provided with a thread groove (10) which is parallel to the axis of the installation shaft (5) and extends to both sides, and the opening of the thread groove (10) faces outward to form an open structure. An adjusting bolt (9) which is parallel to the thread groove (10) is rotatably mounted on the installation seat (7), and the adjusting bolt (9) matches the thread of the thread groove (10). The adjusting bolt (9) is installed in the thread groove (10). When adjusting, the installation seat (7) is driven to move linearly along the installation shaft (5) by rotating the adjusting bolt (9), so as to accurately adjust the position of the slitting knife (8) on the installation seat (7) on the installation shaft (5).

2. The lithium battery processing slitting machine according to claim 1, characterized in that: The inner wall of the mounting seat (7) is provided with a mounting groove (11) for mounting the adjusting bolt (9), and the inner diameter of the mounting groove (11) is larger than the outer diameter of the adjusting bolt (9).

3. The lithium battery processing slitting machine according to claim 1 or 2, characterized in that: A connecting block (12) is fixedly connected to the mounting seat (7), a connecting shaft (13) is arranged on the connecting block (12), a slot (14) for inserting the connecting shaft (13) is provided inside the adjusting bolt (9), and the slot (14) is coaxial with the adjusting bolt (9), a flange body (15) is fixedly provided on the outer wall of the connecting shaft (13), an end cover (16) is fixedly provided at the end of the adjusting bolt (9), a slot (17) matching with the flange body (15) is provided inside the end cover (16), and the flange body (15) and the slot (17) cooperate to enable the adjusting bolt (9) and the connecting shaft (13) to rotate and prevent the two from having axial relative displacement.

4. The lithium battery processing slitting machine according to claim 1, characterized in that: A screwing piece (18) penetrating the outer wall of the mounting seat (7) is rotatably mounted thereon. The screwing piece (18) is connected to the adjusting bolt (9) via a transmission assembly. The transmission assembly enables force transmission between the screwing piece (18) and the adjusting bolt (9) and changes the transmission direction of the force.

5. The lithium battery processing slitting machine according to claim 4, characterized in that: The transmission assembly is a bevel gear, and a bevel gear 1 (19) is coaxially arranged on one end of the screwing member (18) located inside the mounting seat (7), and a bevel gear 2 (20) is coaxially arranged on the adjusting bolt (9), and the bevel gear 1 (19) and the bevel gear 2 (20) are meshed with each other.

6. The lithium battery processing slitting machine according to claim 1, characterized in that: A protective cover (21) is detachably mounted on one side of the outside of the mounting seat (7), and the protective cover (21) is used to protect the slitting knife (8).

7. The lithium battery processing slitting machine according to claim 6, characterized in that: The protective cover (21) is arranged in an arc shape as a whole, the overall circumference arc (C) of the protective cover (21) is ≤180°, and the overall circumference arc (C) of the protective cover (21) is ≥60°, and a knife groove (22) is provided inside the protective cover (21) for inserting a knife.

8. The lithium battery processing slitting machine according to claim 6 or 7, characterized in that: A block (23) is fixedly arranged on the outer wall of the mounting seat (7); a slide groove (24) is provided on the protective cover (21) for the block (23) to be inserted into; a hollow mounting cavity (25) is provided inside the block (23); a "V"-shaped spring sheet (26) is installed in the mounting cavity (25); a positioning bead (27) is installed on the outer wall of the block (23); the positioning bead (27) passes through the outer wall of the block (23); one end of the positioning bead (27) is connected to the spring sheet (26); the spring sheet (26) provides elastic force for the positioning bead (27) to protrude outwards; and the outward protruding end of the positioning bead (27) is arranged in an arc shape; a positioning groove (28) is provided on the outer wall of the protective cover (21) for the positioning bead (27) to be inserted into.

9. The lithium battery processing slitting machine according to claim 6 or 7, characterized in that: An iron sheet (29) is fixedly provided on the outer wall of the mounting seat (7), and a magnetic sheet (30) is provided on the inner wall of the protective cover (21) which is in contact with the mounting seat (7). The magnetic sheet (30) cooperates with the iron sheet (29) to mount the protective cover (21) on the mounting seat (7) by means of magnetic adsorption.

10. The lithium battery processing slitting machine according to claim 4, characterized in that: The outer wall of the mounting shaft (5) is marked with a scale (33); the mounting seat (7) is provided with an observation port (31) penetrating the outer wall thereof; a marker (32) is installed in the observation port (31); the marker (32) is aligned with the position of the screw member (18); the scale (33) on the mounting shaft (5) can be observed from the outside of the mounting seat (7) through the observation port (31); and the position of the slitting knife (8) on the mounting seat (7) can be adjusted with reference to the marker (32) and the scale (33).

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