Cutting depth adjusting structure for cutting device

Abstract

The invention discloses a cutting depth adjusting structure for a cutting device. The device comprises a bottom plate; the upper cutter shaft is fixedly arranged on the bottom plate through a fixing seat; the lower cutter shaft is fixedly arranged on the bottom plate through a fixing seat; the cutting depth adjusting base plate is located between the fixing base of the upper cutter shaft and the fixing base of the lower cutter shaft, and the cutting depth adjusting base plate is fixed to the fixing base of the lower cutter shaft through bolts. And the cutting depth between the upper cutter shaft and the lower cutter shaft is accurately adjusted by adjusting the thickness of the cutting depth adjusting base plate. The upper cutter shaft and the lower cutter shaft are arranged, and the cutting depth between the upper cutter shaft and the lower cutter shaft is adjusted. Therefore, the problems that the pole piece is damaged or burrs exist on the cutting edge in the cutting process due to the inaccurate adjusting mode in the prior art are solved.

Description

Technical Field

[0001] The invention relates to the technical field of lithium battery production devices, and in particular to a cutting depth adjustment structure for a cutting device. Background Art

[0002] During the development, trial production and production of lithium batteries, the electrode sheets need to be cut by a slitting knife. The slitting knife is installed in the roller slitting equipment. It is annular and divided into an upper knife and a lower knife. A large electrode sheet is cut into several electrode sheets between the upper and lower knife shafts. The upper knife is mounted on the inner ring and forms a knife rotation with the inner ring, tension spring, retaining spring, fixed seat and outer ring. The upper knife is located between the fixed seat and the outer ring. A spacer is placed between the upper knife rotation and installed on the transmission shaft. This shaft is called the upper knife shaft. The lower knife has no blade and plays a supporting role. It is fixed on the rotating shaft and its position cannot be adjusted. This shaft is called the lower knife shaft.

[0003] The knives are installed separately with spacers. The position of the slitting knives, i.e. the distance between the upper and lower knives, is adjusted by the knife rotation and the thread on the transmission shaft. The upper and lower knives are required to be very close, but they can only be observed by the naked eye and then measured by tools. If the upper and lower knives are not carefully observed during adjustment and collide with each other, it will cause damage and waste of the knives; the distance between each cutter on the knife shaft needs to be adjusted separately, and the consistency of the distance between the knife and the width of the cut pole piece is difficult to control; the distance between the knife and the pole piece affects the cutting effect of the pole piece, and improper adjustment will cause damage to the pole piece or burrs on the cutting edge. When replacing the upper and lower knives, the protective cover around the device needs to be removed, and the threaded knife seat needs to be adjusted to separate the upper and lower knives. Then the employees lift the upper knife shaft together, place it on the platform, support it with a block, and then remove the bearings at both ends of the knife shaft and the spacer that constrains the knife rotation. Only then can the knife rotation be removed, and all the parts on the knife rotation are removed and the upper knife is taken out for replacement, and then the knife holder can be reassembled in the opposite order of disassembly. The steps of replacing the cutter are cumbersome, time-consuming and labor-intensive. There is a risk of cuts from the cutter and heavy objects injuring employees during the process of carrying the cutter shaft and disassembling parts. Therefore, providing an efficient, labor-saving, safe, easy-to-operate, simple and long-life pole piece cutting knife device or technical solution has become the research direction of the present invention.

[0004] The shortcomings of the existing technology are that the amount of knife support of the upper and lower cutters in the current electrode slitting knife device can only be adjusted by naked eye observation and then measured with a film ruler to determine the amount of knife support. If the upper and lower knives are not carefully observed during adjustment and collide with each other, it will cause damage and waste of the cutter. The size of the knife support affects the cutting effect of the electrode. Improper adjustment will cause damage to the electrode and burrs on the cutting edge. Moreover, the amount of knife support of each cutter on the knife shaft needs to be adjusted separately, and the consistency of the knife support and the width of the cut electrode is difficult to control. Replacing the knife requires all the components on the knife holder to be removed. The steps are cumbersome, time-consuming and labor-intensive. There is a risk of cuts from the knife and heavy objects injuring employees during the process of moving the knife shaft and loading and unloading components. Summary of the invention

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art. To achieve the above purpose, a cutting depth adjustment structure for a cutting device is used to solve the problems raised in the above background technology.

[0006] A cutting amount adjustment structure for a cutting device, comprising:

[0007] Base plate;

[0008] An upper knife shaft, wherein the upper knife shaft is fixedly arranged on the bottom plate through a fixing seat;

[0009] A lower cutter shaft, wherein the lower cutter shaft is fixedly disposed on the bottom plate via a fixing seat; and

[0010] A cutting amount adjusting pad, the cutting amount adjusting pad is located between the fixing seats of the upper cutter shaft and the lower cutter shaft, and the cutting amount adjusting pad is fixed to the fixing seat of the lower cutter shaft by bolts;

[0011] The thickness of the backing plate is adjusted by adjusting the cutting depth, thereby accurately adjusting the cutting depth between the upper cutter shaft and the lower cutter shaft.

[0012] As a further solution of the present invention: the bottom plate is provided with a stepped U-shaped hole for installing the upper blade shaft fixing seat and a circular bolt hole for installing the lower blade shaft fixing seat. By optimizing the design of the bottom plate, the stability and flexibility of the device are enhanced, and the difficulty of installation and maintenance is reduced.

[0013] As a further solution of the present invention: the upper and lower blade shafts are both covered with spacers, and the cutters are installed at intervals according to actual needs, and dust shields and dust shield sponges are arranged in accordance with the cutter positions. By adding dust shields, dust shield sponges and other components, effective dust control is achieved, and cutting efficiency and equipment life are improved.

[0014] As a further solution of the present invention, the dust shield frame is provided with a dust removal duct connection port, which is connected to an external dust removal duct and is used to vacuum and remove dust from the space below the cutter. By connecting to the external dust removal duct, dust can be removed immediately, thereby improving the cleanliness and safety of the working environment.

[0015] As a further solution of the present invention: the cutting amount adjustment structure also includes a top structure, the top structure includes a top plate, a dust baffle is arranged in the middle of the top plate, and a long U-shaped hole and a baffle position adjustment bolt are arranged on the dust baffle, and the size and position of the gap between the two baffles are adjusted by adjusting the bolt. By adding components such as the top structure and the dust baffle, better control of dust is achieved, and the adaptability and flexibility of the equipment are improved.

[0016] As a further solution of the present invention: the top plate is fixedly arranged on the upper knife shaft fixing seat and the lower knife shaft fixing seat by bolts. By optimizing the fixing method of the top plate, the stability of the device is enhanced and the safety is improved.

[0017] As a further solution of the present invention: the upper cutter is composed of a spacer sleeve, an annular spring, a slitting knife, and a supporting sleeve, wherein the supporting sleeve is a boss-shaped structure, and the slitting knife is inserted into the boss-shaped structure of the supporting sleeve. By optimizing the structure of the upper cutter, the cutting efficiency and accuracy are improved, and the cost of maintenance and replacement is reduced.

[0018] As a further solution of the present invention: the dust shield frame is cut into a corresponding arc according to the shape of the slitting knife, and the interior is hollowed out to form a hollow cavity, which surrounds the dust shield sponge and the cutter cleaning sponge. The sponge is fixed to the cavity by a pressing plate and bolts; a strip groove is provided above the cavity, and the dust generated when cutting the pole piece falls into the cavity through the groove. By optimizing the structure of the dust shield frame, efficient dust collection and automatic cleaning of the cutter are achieved, thereby improving the cleanliness and service life of the equipment.

[0019] As a further solution of the present invention: a cleaning alcohol pipeline is installed on the pressure plate corresponding to the cutter cleaning sponge, and a valve can be opened to allow alcohol to wet the cleaning sponge when necessary. When cutting the electrode piece, the cutter rotates and rubs against the cleaning sponge. By adding components such as the cleaning alcohol pipeline and the cleaning sponge, the cutter can be cleaned and maintained in real time, and the service life of the equipment is extended.

[0020] The technical solution of the second aspect: a battery pole piece cutting device, comprising a cutting depth adjustment structure as described in any of the above items.

[0021] Compared with the prior art, the present invention has the following technical effects:

[0022] The above technical solution is adopted, by setting a bottom plate, fixing the upper cutter shaft and the lower cutter shaft thereon, and a cutting depth adjustment pad between the upper and lower cutter shafts. The cutting depth adjustment pad is fixed to the lower cutter shaft fixing seat by bolts, and the cutting depth between the upper cutter shaft and the lower cutter shaft can be precisely adjusted by adjusting the thickness of the pad. The beneficial effect is that a simple and effective adjustment means is provided, which ensures the precise control of the cutting depth between the cutter shafts and improves the processing accuracy and flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings:

[0024] Figure 1 This is a schematic diagram of the overall structure of the cutting depth adjustment structure of the embodiment disclosed in this application;

[0025] Figure 2A back view of a cutting device according to an embodiment of the present application;

[0026] Figure 3 A top view of a cutting device according to an embodiment of the present application;

[0027] Figure 4 A bottom view of a cutting device according to an embodiment disclosed in the present application;

[0028] Figure 5 A schematic diagram of a cutter structure of an embodiment disclosed in this application;

[0029] Figure 6 This is a schematic diagram of the dust shield structure of the embodiment disclosed in this application;

[0030] Figure 7 This is a schematic diagram of the cutter and dust shield structure of the embodiment disclosed in this application.

[0031] In the figure: 1. handle; 2. top plate; 3. cutting amount adjustment pad; 4. bottom plate; 5. upper cutter shaft fixing seat; 6. upper cutter shaft fixing seat bolt; 7. upper cutter shaft adjustment bolt; 8. handle; 9. viewing window; 10. viewing window pressure plate; 11. top block; 12. fixed bearing; 13. upper cutter; 14. dust shield; 15. dust removal pipe connection port; 16. dust shield sponge; 17. spacer; 18. coupling; 1 9. Foil cutter; 20. Dust baffle; 21. Dust shield frame; 22. Gap; 23. Lower cutter; 24. Dust shield frame fixing seat; 25. Spacer; 26. Baffle position adjustment bolt; 27. Stepped U-shaped hole; 28. Lower cutter shaft fixing seat; 29. ​​Spacer; 30. Annular spring; 31. Slitting knife; 32. Support sleeve; 33. Alcohol pipe; 34. Cleaning sponge; 35. Press plate; 36. Cavity. DETAILED DESCRIPTION

[0032] 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.

[0033] Please refer to Figure 1 In an embodiment of the present invention, a cutting amount adjustment structure for a cutting device includes:

[0034] Base plate;

[0035] An upper knife shaft, wherein the upper knife shaft is fixedly arranged on the bottom plate through a fixing seat;

[0036] A lower cutter shaft, wherein the lower cutter shaft is fixedly disposed on the bottom plate via a fixing seat; and

[0037] The cutting amount adjusting pad 3 is placed vertically between the fixing seats of the upper cutter shaft and the lower cutter shaft on the cutting amount adjusting pad 3 and is perpendicular to the horizontal plane. The cutting amount adjusting pad 3 is fixed to the fixing seat of the lower cutter shaft by bolts;

[0038] The thickness of the cutting depth adjusting pad 3 is adjusted, thereby accurately adjusting the cutting depth between the upper cutter shaft and the lower cutter shaft.

[0039] In this embodiment, a stepped U-shaped hole for installing the upper knife shaft fixing seat and a circular bolt hole for installing the lower knife shaft fixing seat are provided on the bottom plate.

[0040] In this embodiment, both the upper knife shaft and the lower knife shaft are covered with spacers, and the cutters are installed at intervals according to actual needs, and a dust shield frame and a dust shield sponge are arranged in coordination with the cutter positions.

[0041] In this embodiment, a dust removal duct connection port is provided on the dust shield frame, which is connected to an external dust removal duct and is used to vacuum and remove dust from the space below the cutter.

[0042] In this embodiment, the cutting amount adjustment structure also includes a top structure, which includes a top plate, a dust baffle is arranged in the middle of the top plate, and a long U-shaped hole and a baffle position adjustment bolt are arranged on the dust baffle. The size and position of the gap between the two baffles are adjusted by adjusting the bolt.

[0043] In this embodiment, the top plate is fixed on the upper knife shaft fixing seat and the lower knife shaft fixing seat by bolts.

[0044] In this embodiment, the upper cutter is composed of a spacer sleeve, an annular spring, a slitting knife, and a supporting sleeve, wherein the supporting sleeve is a boss-shaped structure, and the slitting knife is inserted into the boss-shaped structure of the supporting sleeve.

[0045] In this embodiment, the dust shield frame is cut into a corresponding arc according to the shape of the slitting knife, and the interior is hollowed out to form a hollow cavity, which is surrounded by a dust shield sponge and a cutter cleaning sponge. The sponge is fixed to the cavity using a pressure plate and bolts. A strip groove is provided above the cavity, and the dust generated when cutting the electrode piece falls into the cavity through the groove.

[0046] In this embodiment, a cleaning alcohol pipeline is installed on the pressure plate corresponding to the cutter cleaning sponge. When necessary, the valve can be opened to allow alcohol to wet the cleaning sponge. When cutting the electrode, the cutter rotates and rubs against the cleaning sponge.

[0047] like Figure 2 As shown, the figure shows a back view of the cutting device;

[0048] like Figure 3 As shown, the figure is a top view of the cutting device;

[0049] like Figure 4 As shown, the figure is a bottom view of the cutting device;

[0050] Based on the front view, the position where the upper cutter shaft fixing seat 5 is installed on the bottom plate 4 is punched through the stepped U-shaped hole 27. The bolts in this hole are used to fix the upper cutter shaft fixing seat 5. After loosening the bolts, the upper cutter shaft can be dragged out; the position where the lower cutter shaft fixing seat 28 is installed can be punched through the circular bolt hole normally. The top block 11 is installed on the right side.

[0051] A visual window 9 and a pressure plate 10 are arranged at intervals on the bottom plate 4 and fixed to the bottom plate 4 with bolts. The top of the pressure plate 10 is turned outward and the bottom is protruding outward, leaving space for loading and unloading the visual window 9. A hole is opened at the overlap position of the visual window 9 dust shield frame 14 as a dust removal duct connection port 15, which is connected to the external dust removal duct; handles 8 are installed on the left and right sides to facilitate employees to load and unload the visual window.

[0052] A dust shield frame fixing seat 24 is installed at the top of the bottom plate 4 near the front and rear sides. The position of the dust shield frame 14 can be adjusted through the bolt holes on the dust shield frame fixing seat 24.

[0053] Upper knife shaft structure:

[0054] Based on the front view, the upper knife shaft is located on the front side of the device. A coupling 18 is installed on the right side of the shaft, connected to the motor, responsible for power transmission; a fixed bearing 12 is installed on the left side of the knife shaft.

[0055] The spacer 17 is inserted into the knife shaft, and the pole piece cutter 13 and the foil cutter 19 are installed according to actual needs at a certain interval of the spacer 17. The dust shield frame 14 and the dust shield sponge 16 are located and installed according to the cutter position.

[0056] When installing the dust-proof sponge 16, the spacer sleeve 17 should be attached on the top and the dust-proof frame 14 should be attached on the bottom to completely wrap the position below each cutter 13, 19 on the cutter shaft.

[0057] The dust shield 14 has a circular hole formed therethrough to form a dust removal duct connection port 15. The space below the cutters 13 and 19 can be dusted by connecting the duct to the port.

[0058] The knife shaft is fixedly mounted on the bottom plate 4 through the fixing seat 5. A hole is punched near the bottom of the front center of the fixing seat 5, and an upper knife shaft adjusting bolt 7 is installed to push out the upper knife shaft with the bolt, so as to facilitate the replacement of the parts on the knife shaft.

[0059] Lower knife shaft structure:

[0060] Based on the front view, the lower knife shaft is located on the back side of the device. A coupling 18 is installed on the right side of the shaft, connected to the motor, responsible for power transmission; a fixed bearing 12 is installed on the left side of the knife shaft.

[0061] The knife shaft is sleeved with a spacer 25, and a certain number of spacers 25 are spaced apart to install the lower electrode cutter 23 according to actual needs, and the dust shield frame 21 and the dust shield sponge 16 are positioned and installed in accordance with the position of the cutter. A gap 22 is left at the position corresponding to the foil cutter 19, that is, the foil part is cut by the hanging cutting method.

[0062] When installing the dust-blocking sponge 16 , the spacer sleeve 25 should be attached on the top and the dust-blocking frame 21 should be attached on the bottom, so as to completely wrap each lower cutter 23 on the cutter shaft and the position below the gap 22 .

[0063] The dust shield frame 21 has a circular hole formed as a dust removal duct connection port 15. The duct is connected to the port to remove dust from the lower cutter 23 and the space below the slit 22.

[0064] The knife shaft is fixedly mounted on the base plate 4 via a fixing seat 28 .

[0065] The cutting depth adjustment pad 3 between the upper and lower cutter shafts is fixed on the lower cutter shaft fixing seat 28 by bolts.

[0066] Top structure:

[0067] Based on the front view, the middle of the top plate 2 and the part overlapping with the knife shaft are hollowed out according to the size of the upper and lower knife shafts, and the dust baffle 20 is installed in the hollowed out position. Long U-shaped holes are punched at a certain interval on the dust baffle 20, and the baffle position adjustment bolts 26 are installed to cooperate. The gap size and position between the two baffles 20 are adjusted by adjusting the bolts 26.

[0068] A handle 1 is installed on the left side of the top plate 2, and employees can use the handle to push and pull the device for easy loading and unloading.

[0069] The top plate 2 is fixedly mounted on the upper cutter shaft fixing seat 5 and the lower cutter shaft fixing seat 28 by means of bolts.

[0070] Upper cutter structure:

[0071] like Figure 5 As shown, the figure is a schematic diagram of the cutter structure;

[0072] Based on the direction shown in the figure, the upper cutter 13 is composed of a spacer sleeve 29, an annular spring 30, a slitting knife 31, and a supporting sleeve 32. The supporting sleeve 32 is a boss-shaped structure, and the slitting knife 31 is inserted into the boss of the supporting sleeve 32.

[0073] Dust shield structure:

[0074] like Figure 6 As shown, the figure is a schematic diagram of the dust shield structure;

[0075] like Figure 7 As shown, the figure is a schematic diagram of the cutter and dust shield structure.

[0076] Based on the direction shown in the figure, the dust shield frames 14 and 21 are cut into corresponding arcs according to the shape of the slitting knife 31, and the inside is hollowed out to form a hollow cavity 36, which is surrounded by the dust shield sponge 16 and the cutter cleaning sponge 34. The sponge 1634 is fixed to the cavity 36 using a pressure plate 35 and bolts; a strip groove is opened above the cavity 36, and the dust generated when cutting the pole piece falls into the cavity 36 through the groove.

[0077] The slitting knife 31 should be embedded in the slitting knife cleaning sponge 34, and a cleaning alcohol pipeline 33 is installed on the pressure plate 35 corresponding to the slitting knife cleaning sponge 34. When necessary, the valve can be opened to allow alcohol to wet the cleaning sponge 34. When cutting the electrode, the slitting knife 31 rotates and rubs against the cleaning sponge 34 to achieve the effect of cleaning the slitting knife 31.

[0078] The technical solution of the second aspect: a battery pole piece cutting device, comprising a cutting depth adjustment structure as described in any of the above items.

[0079] In this embodiment, the specific setting steps are:

[0080] The entire device must be removed from the roller slitting equipment before the following operations are performed.

[0081] ①Separation of upper and lower knife shafts

[0082] Method 1: Pull out the viewing window 9, remove the viewing window pressure plate 10, the top plate 2, the dust baffle 20, and the dust shield frame 14, adjust the upper knife shaft adjusting bolt 7, push out the upper knife shaft, and then separate the upper and lower knife shafts.

[0083] Method 2: Pull out the viewing window 9, remove the viewing window pressure plate 10, top plate 2, dust baffle 20, and dust shield frame 14, loosen the bolts of the stepped U-shaped hole 27, and the employee holds the fixed bearings 12 and coupling 18 on both sides of the upper knife shaft, and drags the upper knife shaft outward to separate the upper and lower knife shafts.

[0084] ②Replace the upper and lower cutters

[0085] Refer to the method in ①, after the upper and lower cutter shafts are separated, the fixing seat 528, the coupling 18, and the spacer 1725 on the right side of the cutter shaft are removed in sequence, and the upper and lower cutters can be replaced. When replacing the lower cutter, the dust shield 21 needs to be removed.

[0086] ③Replace the dust sponge

[0087] Pull out the visual window 9, remove the visual window pressure plate 10, and directly replace the dust sponge 16. When installing the dust sponge 16, the spacer sleeves 17 and 25 should be attached to the dust shield frames 14 and 21, and each cutter 13 and 19 on the knife shaft and the position below the gap 22 should be completely wrapped.

[0088] ④Adjust the cutting depth

[0089] The cutting amount adjusting pad 3 is fixed to the lower cutter shaft fixing seat 28. After removing the visual window pressure plate 10, the top plate 2 and the dust baffle 20, and then removing the bolts on the lower cutter shaft fixing seat 28, the cutting amount adjusting pad 3 can be pulled out for replacement. You can also refer to the method in ① to slightly separate the upper and lower cutter shafts, and then pull out the cutting amount adjusting pad 3 for replacement.

[0090] ⑤ Adjust the amount of knife

[0091] Loosen the bolts of the upper cutter shaft fixing seat 5 and the stepped U-shaped hole 27, rotate the fixed bearing 12 to make the upper cutter shaft close to the lower cutter shaft, visually observe the distance between the upper and lower cutter shafts, and then use tools to measure and further adjust the amount of cutting. After the adjustment is completed, tighten the bolts of the upper cutter shaft fixing seat 5 and the stepped U-shaped hole 27 to fix the upper cutter shaft.

[0092] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any reference numerals in the claims should not be regarded as limiting the claims involved.

[0093] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A cutting depth adjustment structure for a cutting device, characterized in that: include: Base plate; An upper knife shaft, wherein the upper knife shaft is fixedly arranged on the bottom plate through a fixing seat; A lower knife shaft, wherein the lower knife shaft is fixedly arranged on the bottom plate through a fixing seat; as well as A cutting amount adjusting pad, the cutting amount adjusting pad is located between the fixing seats of the upper cutter shaft and the lower cutter shaft, and the cutting amount adjusting pad is fixed to the fixing seat of the lower cutter shaft by bolts; The thickness of the backing plate is adjusted by adjusting the cutting depth, thereby accurately adjusting the cutting depth between the upper cutter shaft and the lower cutter shaft.

2. According to claim 1, a cutting depth adjustment structure for a cutting device is characterized in that: The bottom plate is provided with a stepped U-shaped hole for installing the upper knife shaft fixing seat and a circular bolt hole for installing the lower knife shaft fixing seat.

3. The cutting depth adjustment structure for a cutting device according to claim 2, characterized in that: The upper knife shaft and the lower knife shaft are both covered with spacers, and the cutters are installed at intervals according to actual needs, and a dust shield frame and a dust shield sponge are arranged in coordination with the cutter positions.

4. The cutting depth adjustment structure for a cutting device according to claim 3, characterized in that: The dust shield frame is provided with a dust removal duct connection port which is connected with an external dust removal duct and is used for vacuuming and removing dust from the space below the cutter.

5. The cutting depth adjustment structure for a cutting device according to claim 1, characterized in that: The cutting amount adjustment structure also includes a top structure, which includes a top plate, a dust baffle is arranged in the middle of the top plate, and a long U-shaped hole and a baffle position adjustment bolt are arranged on the dust baffle. The size and position of the gap between the two baffles are adjusted by adjusting the bolt.

6. The cutting depth adjustment structure for a cutting device according to claim 5, characterized in that: The top plate is fixed on the upper knife shaft fixing seat and the lower knife shaft fixing seat by bolts.

7. The cutting depth adjustment structure for a cutting device according to claim 3, characterized in that: The upper cutter is composed of a spacer sleeve, an annular spring, a slitting knife, and a supporting sleeve, wherein the supporting sleeve is a boss-shaped structure, and the slitting knife is sleeved into the boss-shaped structure of the supporting sleeve.

8. The cutting depth adjustment structure for a cutting device according to claim 3, characterized in that: The dust shield frame is cut into a corresponding arc according to the shape of the slitting knife, and the inside is hollowed out to form a hollow cavity, which is surrounded by a dust shield sponge and a cutter cleaning sponge. The sponge is fixed to the cavity using a pressure plate and bolts; a strip groove is provided above the cavity, and the dust generated when cutting the pole piece falls into the cavity through the groove.

9. The cutting depth adjustment structure for a cutting device according to claim 8, characterized in that: A cleaning alcohol pipeline is installed on the pressing plate corresponding to the cutter cleaning sponge. If necessary, the valve can be opened to let alcohol wet the cleaning sponge. When cutting the electrode piece, the cutter rotates and rubs against the cleaning sponge.

10. A battery pole piece cutting device, characterized in that: It comprises a cutting depth adjustment structure as claimed in any one of claims 1 to 9.

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