Diaphragm cutter mechanism

Abstract

The utility model provides a diaphragm cutter mechanism which comprises a cutter holder structure, a blade structure and an outer protective cover which are arranged in a matched mode, the blade structure is fixedly connected with the surface of the outer protective cover and the surface of the cutter holder structure, and the blade structure is located between the outer protective cover and the cutter holder structure at the same time. A first installation position and a second installation position are arranged on the upper portion and the lower portion of the inner side of the outer protection cover, clamping strips are fixedly connected to the first installation position and the second installation position, and an installation outer hole and a positioning groove are formed in the surface of the outer protection cover. The effect that the whole guide rod assembly can be conveniently adjusted in a sliding mode along the corresponding guide groove structure is achieved through a guide ball, and the effect that the whole guide rod assembly can be conveniently fixed in the corresponding guide groove structure is achieved through a threaded rod; the effect of conveniently connecting and fixing the whole blade structure and the guide rod assembly is achieved through the first mounting hole and the second mounting hole, and the effect of conveniently rotating the blade on the surface of the tool apron body to adjust the angle is achieved through the adjusting screw rod.

Description

Technical Field

[0001] The utility model relates to the field of lithium battery diaphragms, and more specifically, to a diaphragm cutting mechanism. Background Art

[0002] In the process of lithium battery separator production, it is usually necessary to cut large rolls of semi-finished separators into small rolls, which are then used in battery production.

[0003] In the prior art, the slitting machine knife holder is usually a lower cutting knife mechanism located below the diaphragm. The blade of the lower slitting knife of the lower cutting knife mechanism is tilted so that when the lower slitting knife is slitting a single-coated PP diaphragm, the blade of the lower slitting knife is directly facing the ceramic surface of the diaphragm. During slitting, the blade of the lower slitting knife will first cut the ceramic layer of the diaphragm. Since the material property of the PP diaphragm is strong in longitudinal force, the wear rate of the lower slitting knife is particularly fast. Often, the blade is damaged before a roll is slit. Continuing to slitting will cause defects such as diaphragm wiredrawing, burrs on the end faces of small rolls, and misalignment, and qualified finished small rolls cannot be cut out. Therefore, an upper cutting knife mechanism is required to slitting the PP diaphragm from the other side of the PP diaphragm. The existing cutting knife mechanism consists of a blade and a knife seat for installation, wherein the blade is tiltedly installed on the inner surface of the knife seat by a blade screw, and the cutting edge of the blade protrudes from the bottom of the knife seat in an inclined state to complete the cutting.

[0004] The problem with the existing cutter mechanism is that after the knife seat and the blade are installed and fixed, when the cutting edge angle needs to be adjusted, the cutting angle of the blade can only be adjusted by adjusting the installation angle of the entire knife seat structure, and fine-tuning between the blade itself and the knife seat is not possible.

[0005] Therefore, the utility model proposes a diaphragm cutting mechanism. Utility Model Content

[0006] The utility model aims to solve the technical problems raised by the above background technology and provide a diaphragm cutting mechanism that can solve:

[0007] After the knife holder and the blade are installed and fixed, when the cutting edge angle needs to be adjusted, the cutting angle of the blade can only be adjusted by adjusting the installation angle of the entire knife holder structure, and the problem of fine-tuning between the blade itself and the knife holder cannot be solved.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a diaphragm cutting knife mechanism, comprising a matching knife seat structure, a blade structure and an outer protective cover, the blade structure and the outer protective cover and the knife seat structure surface are fixedly connected, the blade structure is located between the outer protective cover and the knife seat structure at the same time, a first mounting position and a second mounting position are arranged at the upper and lower positions on the inner side of the outer protective cover, the first mounting position and the second mounting position are fixedly connected with a clamping strip, an outer mounting hole and a positioning groove are provided on the surface of the outer protective cover, the knife seat structure comprises a knife seat body, a mounting hole is provided on the surface of the knife seat body, a guide rod assembly is arranged between the blade structure and the knife seat structure, the guide rod assembly is fixedly connected to the blade structure, and is movably connected to the knife seat structure.

[0009] A further preferred solution: the knife seat structure further comprises a first card slot, a second card slot, a positioning wing plate, a first guide slot and a second guide slot, the first card slot and the second card slot are respectively arranged at the upper and lower positions of the surface of the knife seat body, the positioning wing plate is located at the outer side of the bottom of the mounting hole, the first guide slot and the second guide slot are located below the surface of the knife seat body, and a protective strip is embedded on the surface of the positioning wing plate;

[0010] The first card slot and the second card slot are respectively provided in an arc-shaped card slot and a rectangular card slot, and the positioning wing plate is provided in an arc-shaped protrusion along the outer side of the bottom of the mounting hole, and the positioning wing plate is embedded in the positioning slot at the same time.

[0011] A further preferred solution: two groups of card strips are provided, corresponding to the first installation position and the second installation position. The card strip located at the first installation position is provided as an arc-shaped protrusion, while the card strip located at the second installation position is provided as a rectangular protrusion, and the positioning groove is opened in an arc shape along the bottom edge of the outer installation hole.

[0012] A further preferred solution is that the card strip is correspondingly embedded in the first card slot and the second card slot.

[0013] A further preferred solution is that threaded mounting holes are provided on both sides of the surface and the bottom of the outer protective cover and the knife seat body in the same position and in a corresponding manner.

[0014] A further preferred solution is that the first guide groove and the second guide groove are both arranged in an arc shape, are arranged side by side, and have inner sides that are both arranged to be arc-shaped and convex.

[0015] A further preferred solution is that the protection strip is configured as a rubber arc strip, the outer end of which extends to the outside of the bottom of the positioning wing plate.

[0016] A further preferred solution is that two groups of guide rod assemblies are provided corresponding to the first guide groove and the second guide groove, and the guide rod assembly is composed of a guide rod body, a guide ball and a threaded rod which are fixedly connected in sequence, the outer end of the guide rod body is fixedly connected by an external screw and a blade structure, and the threaded rod and the guide ball are movably embedded in the first guide groove and the second guide groove;

[0017] The guide rod body passes through the first mounting hole and the second mounting hole at the same time and is fixedly connected to the blade.

[0018] A further preferred solution is that the guide ball is arranged in a spherical protrusion and is located between the guide rod body and the threaded rod, and the threaded rod is simultaneously protruded outside the corresponding two groups of guide groove structures.

[0019] A further preferred solution: the blade structure comprises a blade and an adjusting screw embedded in the surface of the blade, the surface of the blade is provided with a first mounting hole and a second mounting hole, and the adjusting screw, the first mounting hole and the second mounting hole are arranged side by side at equal distances on the surface of the blade;

[0020] A threaded hole is provided at the surface end angle position of the tool holder body corresponding to the adjusting screw.

[0021] Beneficial effects:

[0022] 1. The card strip cooperates with the first card slot and the second card slot to facilitate the adaptation and installation of the outer protective cover and the knife holder structure as a whole, and the positioning wing plate and the positioning slot ensure the connection and positioning of the knife holder body and the outer protective cover.

[0023] 2. The first guide groove and the second guide groove provide a guiding and positioning effect for the guide rod assembly.

[0024] 3. The protective strip provides buffer protection for the blade structure.

[0025] 4. The guide ball can be used to facilitate the sliding adjustment of the guide rod assembly as a whole along the corresponding guide groove structure, and the threaded rod can be used to facilitate the fixing of the guide rod assembly as a whole inside the corresponding guide groove structure.

[0026] 5. The first mounting hole and the second mounting hole are used to facilitate the connection and fixation of the blade structure as a whole and the guide rod assembly, and the adjusting screw is used to facilitate the rotation and angle adjustment of the blade on the surface of the blade holder body. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is an exploded view of the overall structure of the utility model;

[0028] Figure 2 This is an exploded view of the connection between the knife seat structure and the blade structure of the utility model;

[0029] Figure 3 For the utility model Figure 2 A magnified view of the structure at center;

[0030] Figure 4 For the utility model Figure 2 Enlarged view of the structure at point B in the middle.

[0031] Figure 1-4 In: 1. Tool holder structure; 2. Blade structure; 3. Mounting hole; 4. External protective cover; 5. Clip-on strip; 6. First mounting position; 7. Second mounting position; 8. External mounting hole; 9. Positioning slot; 10. Tool holder body; 11. First clip-on slot; 12. Second clip-on slot; 13. Positioning wing plate; 14. Protective strip; 15. First guide slot; 16. Second guide slot; 17. Guide rod assembly; 18. Guide rod body; 19. Guide ball; 20. Threaded rod; 21. Blade; 22. First mounting hole; 23. Second mounting hole; 24. Adjusting screw. DETAILED DESCRIPTION

[0032] The following will be combined with the attached embodiment of the present utility model Figure 1-Figure 4 , clearly and completely describe the technical solutions in the embodiments of the utility model.

[0033] See also Figure 1-4 In the embodiment of the utility model, a diaphragm cutting knife mechanism includes a matching knife seat structure 1 and a blade structure 2 and an outer protective cover 4. The blade structure 2, the outer protective cover 4 and the knife seat structure 1 are fixedly connected on the surface. The blade structure 2 is located between the outer protective cover 4 and the knife seat structure 1. The inner side of the outer protective cover 4 is provided with a first mounting position 6 and a second mounting position 7 at the upper and lower positions. The first mounting position 6 and the second mounting position 7 are fixedly connected with a card strip 5. The surface of the outer protective cover 4 is provided with an outer mounting hole 8 and a positioning groove 9. The knife seat structure 1 includes a knife seat body 10. The knife A mounting hole 3 is provided on the surface of the seat body 10, and a guide rod assembly 17 is provided between the blade structure 2 and the knife seat structure 1. The guide rod assembly 17 is fixedly connected to the blade structure 2 and movably connected to the knife seat structure 1. When the device is in use, the blade structure 2 as a whole is rotated and adjusted on the surface of the knife seat structure 1 to adjust the inclination angle of the cutting edge position of the end corner of the blade 21. After the adjustment is completed, it is fixed, and finally the outer protective cover 4 and the knife seat structure 1 are adapted and connected. The outer protective cover 4 can protect the blade structure 2 as a whole and the corresponding structure from the outside.

[0034] In the embodiment of the utility model, the knife seat structure 1 also includes a first card slot 11, a second card slot 12, a positioning wing plate 13, a first guide slot 15 and a second guide slot 16. The first card slot 11 and the second card slot 12 are respectively opened at the upper and lower positions of the surface of the knife seat body 10, the positioning wing plate 13 is located at the bottom outside of the mounting hole 3, the first guide slot 15 and the second guide slot 16 are located below the surface of the knife seat body 10, and the surface of the positioning wing plate 13 is embedded with a protective strip 14. The card strip 5 is provided with two groups, corresponding to the first mounting position 6 and the second mounting position 7. The card strip 5 located at the first mounting position 6 is arranged in an arc-shaped convex configuration, and the card strip 5 located at the second mounting position 7 is arranged in an arc-shaped convex configuration. The card strip 5 of position 7 is arranged in a rectangular protrusion, the positioning groove 9 is opened in an arc shape along the bottom edge of the mounting outer hole 8, the first card slot 11 and the second card slot 12 are opened in an arc-shaped card slot and a rectangular card slot respectively, the positioning wing plate 13 is arranged in an arc-shaped protrusion along the bottom outer side of the mounting hole 3, the positioning wing plate 13 is embedded in the positioning groove 9 at the same time, and the card strip 5 is correspondingly embedded in the first card slot 11 and the second card slot 12. The card strip 5 cooperates with the first card slot 11 and the second card slot 12 to achieve the effect of facilitating the adaptation and installation of the outer protective cover 4 and the knife seat structure 1 as a whole, and the positioning wing plate 13 and the positioning groove 9 are used to ensure the connection and positioning of the knife seat body 10 and the outer protective cover 4.

[0035] Threaded mounting holes are provided on both sides and the bottom of the outer protective cover 4 and the tool holder body 10. When installing the outer protective cover 4 and the tool holder body 10, the clamping strips 5 located at the first mounting position 6 and the second mounting position 7 are correspondingly embedded in the first clamping groove 11 and the second clamping groove 12 on the surface of the tool holder body 10, so that the outer protective cover 4 and the tool holder body 10 are clamped and fixed, and the positioning wing plate 13 is correspondingly embedded in the positioning groove 9, so that the mounting hole 3 and the outer mounting hole 8 coincide with each other.

[0036] The first guide groove 15 and the second guide groove 16 are both arc-shaped, arranged side by side, and the inner sides of both are arc-shaped and convex. The first guide groove 15 and the second guide groove 16 provide guiding and positioning effects for the guide rod assembly 17 .

[0037] The protection strip 14 is configured as a rubber arc strip, the outer end of which extends to the outside of the bottom of the positioning wing plate 13 , so that the protection strip 14 provides a buffering protection effect for the blade structure 2 .

[0038] When the blade structure 2 is adjusted upward in angle, the protective strip 14 is used to reduce the hard contact between the blade structure 2 and the positioning wing plate 13, thereby achieving a protective effect and ensuring the cutting stability of the blade structure 2 during the subsequent cutting process.

[0039] Two groups of guide rod assemblies 17 are provided corresponding to the first guide groove 15 and the second guide groove 16. The guide rod assembly 17 consists of a guide rod body 18, a guide ball 19 and a threaded rod 20 that are fixedly connected in sequence. The outer end of the guide rod body 18 is fixedly connected to the blade structure 2 by an external screw, and the threaded rod 20 and the guide ball 19 are movably embedded in the first guide groove 15 and the second guide groove 16. The guide ball 19 is provided in a spherical protrusion and is located between the guide rod body 18 and the threaded rod 20. The threaded rod 20 is also protruded outside the corresponding two groups of guide groove structures. The guide ball 19 is used to facilitate the sliding adjustment of the guide rod assembly 17 as a whole along the corresponding guide groove structure. The threaded rod 20 is used to facilitate the fixing of the guide rod assembly 17 as a whole inside the corresponding guide groove structure.

[0040] When the blade structure 2 needs to be fixed, the user inserts the threaded rod 20 from the back of the knife seat body 10 through the external nut, and fixes the position of the guide rod assembly 17 in the corresponding guide groove structure from the back of the knife seat body 10, thereby completing the angle fixation of the blade structure 2. When adjusting, remove the external nut adjusted on the threaded rod 20, rotate the guide rod assembly 17 along the corresponding guide groove structure, and the guide ball 19 slides along the corresponding guide groove structure to complete the adjustment of the guide rod assembly 17 and the angle adjustment of the blade structure 2 at the same time.

[0041] The blade structure 2 includes a blade 21 and an adjusting screw 24 embedded in the surface of the blade 21. The surface of the blade 21 is provided with a first mounting hole 22 and a second mounting hole 23. The adjusting screw 24, the first mounting hole 22 and the second mounting hole 23 are arranged side by side at equal distances on the surface of the blade 21. The guide rod body 18 passes through the first mounting hole 22 and the second mounting hole 23 and is fixedly connected to the blade 21. The surface end angle position of the blade holder body 10 is provided with a threaded hole corresponding to the adjusting screw 24.

[0042] The first mounting hole 22 and the second mounting hole 23 facilitate the connection and fixation of the blade structure 2 as a whole and the guide rod assembly 17 , and the adjusting screw 24 facilitates the rotation and angle adjustment of the blade 21 on the surface of the blade holder body 10 .

[0043] When adjusting the angle of the blade 21, the user rotates the adjusting screw 24 to make the outer end angle position of the blade 21 rotate about this point. After the rotation is completed, the user rotates the adjusting screw 24 to fix the blade 21 on the surface of the blade holder body 10. During the rotation and adjustment process of the blade 21, the guide rod assembly 17 is also driven to rotate along the corresponding guide groove structure.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims

1. A diaphragm cutting mechanism, characterized in that: The invention comprises a knife seat structure (1), a blade structure (2) and an outer protective cover (4) which are arranged in a matching manner. The blade structure (2), the outer protective cover (4) and the surfaces of the knife seat structure (1) are all fixedly connected. The blade structure (2) is located between the outer protective cover (4) and the knife seat structure (1). A first mounting position (6) and a second mounting position (7) are arranged at the upper and lower positions on the inner side of the outer protective cover (4). The first mounting position (6) and the second mounting position (7) are both fixedly connected with a clamping strip (5). The surface of the outer protective cover (4) is provided with a mounting outer hole (8) and a positioning groove (9). The knife seat structure (1) comprises a knife seat body (10). The surface of the knife seat body (10) is provided with a mounting hole (3). A guide rod assembly (17) is arranged between the blade structure (2) and the knife seat structure (1). The guide rod assembly (17) is fixedly connected to the blade structure (2) and is movably connected to the knife seat structure (1).

2. A diaphragm cutting mechanism according to claim 1, characterized in that: The knife seat structure (1) also includes a first card slot (11), a second card slot (12), a positioning wing plate (13), a first guide slot (15) and a second guide slot (16); the first card slot (11) and the second card slot (12) are respectively arranged at the upper and lower positions of the surface of the knife seat body (10); the positioning wing plate (13) is located at the outside of the bottom of the mounting hole (3); the first guide slot (15) and the second guide slot (16) are located below the surface of the knife seat body (10); and a protective strip (14) is embedded in the surface of the positioning wing plate (13); The first card slot (11) and the second card slot (12) are respectively provided in the form of an arc-shaped card slot and a rectangular card slot, and the positioning wing plate (13) is provided in the form of an arc-shaped protrusion along the outer side of the bottom of the mounting hole (3), and the positioning wing plate (13) is simultaneously embedded in the positioning slot (9).

3. A diaphragm cutting mechanism according to claim 1, characterized in that: The clamping strips (5) are provided in two groups, corresponding to the first installation position (6) and the second installation position (7); the clamping strips (5) located at the first installation position (6) are provided in the form of arc-shaped protrusions, while the clamping strips (5) located at the second installation position (7) are provided in the form of rectangular protrusions; the positioning grooves (9) are provided in the form of arcs along the bottom edge of the installation outer hole (8).

4. A diaphragm cutting mechanism according to claim 3, characterized in that: The card strip (5) is correspondingly embedded in the first card slot (11) and the second card slot (12).

5. A diaphragm cutting mechanism according to claim 1, characterized in that: The outer protective cover (4) and the knife seat body (10) are provided with threaded mounting holes at both sides of the surface and at the bottom thereof, correspondingly.

6. A diaphragm cutting mechanism according to claim 2, characterized in that: The first guide groove (15) and the second guide groove (16) are both opened in an arc shape, are opened side by side, and the inner sides of both are arranged to be arc-shaped and convex.

7. A diaphragm cutting mechanism according to claim 2, characterized in that: The protection strip (14) is configured as a rubber arc strip, the outer end of which extends to the outside of the bottom of the positioning wing plate (13).

8. A diaphragm cutting mechanism according to claim 1, characterized in that: The guide rod assembly (17) is provided with two groups corresponding to the first guide groove (15) and the second guide groove (16), and the guide rod assembly (17) is composed of a guide rod body (18), a guide ball (19) and a threaded rod (20) which are fixedly connected in sequence, the outer end of the guide rod body (18) is fixedly connected to the blade structure (2) by an external screw, and the threaded rod (20) and the guide ball (19) are movably embedded in the first guide groove (15) and the second guide groove (16); The guide rod body (18) passes through the first mounting hole (22) and the second mounting hole (23) at the same time and is fixedly connected to the blade (21).

9. A diaphragm cutting mechanism according to claim 8, characterized in that: The guide ball (19) is arranged in a spherical protrusion and is located between the guide rod body (18) and the threaded rod (20). The threaded rod (20) is also arranged protrudingly outside the corresponding two groups of guide groove structures.

10. A diaphragm cutting mechanism according to claim 1, characterized in that: The blade structure (2) comprises a blade (21) and an adjusting screw (24) embedded in the surface of the blade (21); a first mounting hole (22) and a second mounting hole (23) are simultaneously provided on the surface of the blade (21); the adjusting screw (24), the first mounting hole (22) and the second mounting hole (23) are arranged side by side at equal distances on the surface of the blade (21); A threaded hole is provided at the surface end angle position of the knife seat body (10) corresponding to the adjusting screw rod (24).

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