A cutting blade dust removal device

Abstract

The utility model discloses a cutter dust removal device, which includes a cutter assembly, a cover assembly and a dust removal shell for collecting adsorbed materials generated by cutting action; the cover assembly is movably connected with the dust removal shell and covers the opening of the dust removal shell; the cutter assembly is installed in the dust removal shell, and is used to push open the cover assembly and perform the cutting action. The cutting action and reset are completed by rotating the cutter assembly between the initial position and the cutting position, and the cover assembly is linked to open and close, thereby reducing the opening and closing degree of the dust removal shell opening to increase the adsorption force on the residue and enhance the dust removal effect.

Description

Technical Field

[0001] The utility model relates to the field of cutter machinery, in particular to a cutter dust removal device. Background Art

[0002] With the continuous development of the lithium battery industry, its technical level is getting higher and higher, and the requirements for battery safety performance are also getting higher and higher. Among them, the quality of the pole piece of the molded battery has an important impact on the safety performance of the battery.

[0003] In the production process of lithium-ion batteries, positive electrode sheets, separators and negative electrode sheets are usually prepared by winding or stacking, and the cutting of material strips is used in different processes. For example, in the process of winding and changing the rolls in the coating process, the winding and changing of the separators and various material strips, the old material strips need to be cut by a cutter to replace the new ones. However, in the process of cutting the material strips with the cutter, the cutting of the material strips by the cutter is easy to produce powder, which causes pollution to the production process of the electrode sheets.

[0004] To this end, in the prior art, a dust suction component is usually added to the position of the cutter to reduce powder pollution. However, since the existing dust suction component is usually an open dust suction hood, the dust removal adsorption force is small, which will cause debris to splash and the dust removal effect is poor. Utility Model Content

[0005] The utility model discloses a cutter dust removal device, which is used to solve the technical problem that the existing dust collection assembly is usually an open dust collection cover with low dust collection adsorption force, which easily causes debris to splash and poor dust collection effect.

[0006] The utility model provides a cutter dust removal device, comprising a cutter assembly, a cover assembly and a dust removal shell for collecting adsorbed matter generated by cutting action;

[0007] The cover assembly is movably connected to the dust removal shell and covers the opening of the dust removal shell;

[0008] The cutter assembly is installed in the dust removal shell and is used to push open the cover assembly and perform the cutting action.

[0009] Optionally, a dust removal duct connected to the dust removal shell is further included to provide negative pressure to absorb the adsorbent.

[0010] Optionally, the dust removal housing is a box with a single-side opening;

[0011] At least one dust removal hole is formed on the first side wall of the dust removal housing and is connected to the dust removal pipeline through the dust removal hole.

[0012] Optionally, the cutter assembly includes a cutter mechanism and a rotating push assembly, and a connecting rod is further provided in the dust removal housing;

[0013] The rotating pushing components are respectively installed at both ends of the cutting mechanism;

[0014] The rotating pushing assembly is sleeved on the connecting rod, and the connecting rod is rotated to drive the cutting mechanism to rotate from the initial position to the cutting position to perform the cutting action.

[0015] Optionally, the cutter assembly further comprises at least one detection assembly;

[0016] The detection component is installed on the cutter mechanism and is used to detect the rotation position of the cutter mechanism.

[0017] Optionally, the cutter mechanism comprises a cutter and a cutter mounting plate;

[0018] The cutter is installed on one side of the cutter mounting plate, and the cutting edge is higher than the cutter mounting plate;

[0019] Each of the rotating pushing components is installed on the other side of the cutter mounting plate.

[0020] Optionally, the dust removal housing further includes a driving mechanism and a connecting piece;

[0021] One end of the connecting rod is mounted on one end of the dust removal housing through the connecting piece, and the connecting rod and the connecting piece are rotatable;

[0022] The driving mechanism is installed on the outside of the dust removal housing;

[0023] The output end of the driving mechanism is connected to the other end of the connecting rod and is used to drive the connecting rod to rotate.

[0024] Optionally, the rotating end of the cover assembly is rotatably connected to the dust removal shell via a rotating shaft.

[0025] Optionally, the cover assembly further comprises a movable end away from the rotating end, and the cutter assembly pushes the cover assembly open along the movable end;

[0026] The movable end is provided with a first fixing piece, the second side wall of the dust removal housing is provided with a second fixing piece, and the first fixing piece and the second fixing piece are connected via an elastic piece.

[0027] Optionally, the elastic member is a return spring.

[0028] It can be seen from the above technical solutions that the embodiments of the utility model have the following advantages:

[0029] The embodiment of the utility model provides a cutter dust removal device, which includes a cutter assembly, a cover assembly and a dust removal shell for collecting adsorbed materials generated by cutting action; the cover assembly is movably connected with the dust removal shell and covers the opening of the dust removal shell; the cutter assembly is installed in the dust removal shell, and is used to push open the cover assembly and perform the cutting action. The cutting action and reset are completed by rotating the cutter assembly between the initial position and the cutting position, and the cover assembly is linked to open and close, thereby reducing the opening and closing degree of the dust removal shell opening to increase the adsorption force on the residue and enhance the dust removal effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0031] Figure 1 It is a perspective schematic diagram of the structure of a cutter dust removal device provided in an embodiment of the utility model;

[0032] Figure 2 This is a schematic structural diagram of a cutter assembly 1 provided in an embodiment of the utility model;

[0033] Figure 3 A schematic diagram of the internal structure of a cutter dust removal device provided in an embodiment of the utility model;

[0034] Figure markings: 1-cutter assembly, 2-cover assembly, 3-dust removal shell, 4-dust removal duct, 11-cutter assembly, 12-rotation pushing assembly, 13-detection assembly, 21-rotation end, 22-movable end, 23-first fixing member, 31-connecting rod, 32-driving mechanism, 33-connecting member, 34-second fixing member, 111-cutter, 112-cutter mounting plate, elastic member 5. DETAILED DESCRIPTION

[0035] The battery cell is an important component of the lithium-ion battery. It is generally formed by winding four layers of material strips, namely, the diaphragm, the cathode electrode sheet, the diaphragm, and the anode electrode sheet. Traditionally, the winding machine includes a winding device and a feeding device, and the winding device is used to wind the diaphragm and the electrode sheet. The feeding device is used to cut the electrode sheet when the winding of the previous battery cell is completed, and to feed the starting end of the electrode sheet into the winding device before starting to wind the next battery cell. Since debris or impurities will be attached to the surface of the electrode sheet during the transportation and cutting process, it is necessary to set a dust removal mechanism on the feeding device to recover and adsorb the debris or residue generated by the cutting while cutting the electrode sheet, so as to prevent the debris from adversely affecting the production process. The existing dust removal mechanism is usually an open dust hood with low dust removal adsorption force, which causes debris to splash and poor dust removal effect.

[0036] To this end, the embodiment of the utility model discloses a cutter dust removal device, which solves the technical problem that the existing dust collection assembly is usually an open dust collection cover with low dust collection adsorption force, resulting in debris splashing and poor dust collection effect.

[0037] See also Figure 1 , a perspective schematic diagram of the structural part of a cutter dust removal device provided in an embodiment of the utility model.

[0038] The embodiment of the utility model provides a cutter dust removal device, comprising a cutter assembly 1, a cover assembly 2 and a dust removal housing 3 for collecting adsorbed matter generated by cutting action;

[0039] The cover assembly 2 is movably connected to the dust removal housing 3 and covers the opening of the dust removal housing 3;

[0040] The cutter assembly 1 is installed in the dust removal housing 3, and is used to push open the cover assembly 2 and perform the cutting action.

[0041] In this embodiment, the cutter dust removal device can be installed at any position on the material strip production line to improve the flexibility of material strip cutting. The cutter dust removal device includes a cutter assembly 1, a cover assembly 2 and a dust removal shell 3, wherein the cutter assembly 1 and the cover assembly 2 are linked during the execution of the cutting action, the dust removal shell 3 is a box structure with a single-side opening, the cutter assembly 1 is embedded in the dust removal shell 3 and can rotate, the cover assembly 2 covers the opening position of the dust removal shell 3 and is movably connected to the dust removal shell 3, completely covers the dust removal shell 3 in the non-cutting state, and is pushed open by the cutter assembly 1 when the cutter assembly 1 performs the cutting action to form another opening to collect adsorbents.

[0042] Specifically, when it is necessary to cut the material strip, the cutter assembly 1 in the driving device starts to rotate from the initial position, and after pushing open the cover assembly 2, it rotates to the cutting position to cut the material strip that needs to be cut; at the same time, when the cutter assembly 1 performs the cutting action, a small-sized opening is formed between the cover assembly 2 and the dust removal shell 3, and the dust removal shell 3 collects the adsorbed material generated by the cutting action through the opening; after the cutter assembly 1 completes the cutting action, it rotates back to the initial position to shrink its structure into the inside of the dust removal shell 3, and at this time the cover assembly 2 is immediately covered on the opening of the dust removal shell 3 to avoid missing the adsorbed material.

[0043] The adsorbed matter refers to debris, residue or particles generated by cutting the material strip, and the material strip may be a pole piece, a film or other material that can be cut by the cutter assembly 1 .

[0044] In one example of the present invention, the device further comprises a dust removal duct 4 connected to the dust removal housing 3, for providing negative pressure to absorb the adsorbent.

[0045] In order to further improve the dust removal effect and enhance the adsorption capacity of the adsorbent, a dust removal duct 4 can be connected to the first side wall of the dust removal shell 3. Negative pressure is provided through the dust removal duct 4 to absorb the adsorbent while the cutter assembly 1 performs the cutting action, so as to achieve simultaneous cutting and dust collection, and avoid the accumulation of adsorbent in the dust removal shell 3 affecting the action of the cutter assembly 1.

[0046] In addition, since the cover assembly 2 is pushed by the cutter assembly 1 to form a small-sized opening with the dust removal shell 3, the adsorption force provided by the dust removal duct 4 is increased, effectively enhancing the dust removal effect.

[0047] Furthermore, the dust removal housing 3 is a box with a single-side opening;

[0048] At least one dust removal hole is formed on the first side wall of the dust removal housing 3 , and is connected to the dust removal duct 4 through the dust removal hole.

[0049] To facilitate connection, at least one dust removal hole may be opened on the first side wall of the dust removal shell 3. After the dust removal shell 3 is connected to the dust removal duct 4 through each dust removal hole, the connection position is sealed to avoid leakage of adsorption force.

[0050] Among them, multiple dust removal pipes 4 can be connected to each dust removal hole respectively, or multiple dust removal holes can be connected via one dust removal pipe 4. Figure 1 shown.

[0051] In one example of the present invention, see Figure 2 The cutter assembly 1 includes a cutter mechanism 11 and a rotating push assembly 12, and a connecting rod 31 is also provided in the dust removal housing 3;

[0052] The rotating pushing components 12 are respectively installed at both ends of the cutting mechanism 11;

[0053] The rotating pushing assembly 12 is sleeved on the connecting rod 31 , and the connecting rod 31 is rotated to drive the cutting mechanism 11 to rotate from the initial position to the cutting position to perform the cutting action.

[0054] In order to install the cutter assembly 1 in the dust removal housing 3, a connecting rod 31 can be set in the dust removal housing 3, and the connecting rod 31 is parallel to the width of the material belt and can rotate. In order to facilitate the subsequent replacement of the cutter 111, the cutter assembly 1 can be formed by splicing multiple mechanism components. Specifically, the cutter assembly 1 may include a cutter mechanism 11 and a rotating push component 12. The rotating push components 12 are installed at both ends of the cutter mechanism 11 and fixed by bolts or screws, and each rotating push component 12 is sleeved on the connecting rod 31 and fixed. The connecting rod 31 is driven by an external mechanism to rotate clockwise or counterclockwise, so that the rotating push component 12 drives the cutter mechanism 11 to rotate from the initial position to the cutting position to perform the cutting action, and reset from the cutting position to the initial position.

[0055] Furthermore, the cutter mechanism 11 includes a cutter 111 and a cutter mounting plate 112;

[0056] The cutter 111 is installed on one side of the cutter mounting plate 112, and the cutting edge is higher than the cutter mounting plate 112;

[0057] Each of the rotating pushing components 12 is installed on the other side of the cutter mounting plate 112 .

[0058] In this embodiment, the cutter mechanism 11 may include a cutter 111 and a cutter mounting plate 112. The cutter 111 is mounted on one side of the cutter mounting plate 112, and the cutting edge of the cutter 111 is higher than the cutter mounting plate 112, while the rotary push component 12 is fixedly mounted on the other side of the cutter mounting plate 112. The rotary push component 12 is sleeved on the connecting rod 31, and when the connecting rod 31 rotates, the cutter 111 is driven to rotate with the connecting rod 31 as the axis, so that the cutter 111 is rotated from the initial position to the cutting position.

[0059] The initial position is the position where the cutter 111 is located as a whole inside the dust removal housing 3, and the cutting position refers to the position where the cutter 111 extends out of the dust removal housing 3 and performs a cutting action on the material strip.

[0060] See also Figure 3 , the dust removal housing 3 also includes a driving mechanism 32 and a connecting member 33;

[0061] One end of the connecting rod 31 is mounted on one end of the dust removal housing 3 through the connecting piece 33, and the connecting rod 31 and the connecting piece 33 are rotatable.

[0062] The driving mechanism 32 is installed on the outside of the dust removal housing 3;

[0063] The output end of the driving mechanism 32 is connected to the other end of the connecting rod 31 for driving the connecting rod 31 to rotate.

[0064] In one example of the present utility model, in order to improve the efficiency of the cutter assembly 1, a driving mechanism 32 can be fixedly installed on the outside of one end of the dust removal housing 3, and the output end of the driving mechanism 32 passes through the second side wall of the dust removal housing 3 and is fixedly connected to one end of the connecting rod 31 to drive the connecting rod 31 to rotate clockwise or counterclockwise. At the same time, the other end of the connecting rod 31 is fixed to the other end of the dust removal housing 3 through a connecting member 33, and the connecting member 33 can be located on the outside of the dust removal housing 3 and is rotatably connected to the connecting rod 31.

[0065] It should be noted that the connecting member 33 can be a flange, the driving mechanism 32 can be a motor, a solenoid valve assembly or other mechanism that can provide a rotational driving force. The second side wall in this embodiment is the two end side walls at the width position of the material strip, and the first side wall is the two side walls except the second side wall.

[0066] Optionally, the cutter assembly 1 further includes at least one detection assembly 13;

[0067] The detection component 13 is installed on the cutter mechanism 11 and is used to detect the rotation position of the cutter mechanism 11 .

[0068] To reduce resource consumption, different degrees of driving force can be applied to the cutter 111 according to the different materials of various types of strips. At the same time, in order to know whether the cutting action is performed in place, the extended length of the cutter 111 can be detected in real time through the detection component 13.

[0069] The detection component 13 can be specifically installed on the non-cutter side of the cutter mounting plate 112. The detection component 13 can be an infrared sensor, a photoelectric sensor or other distance measuring sensors.

[0070] In one example of the present invention, the rotating end 21 of the cover assembly 2 is rotatably connected to the dust removal housing 3 via a rotating shaft.

[0071] In this embodiment, the cover assembly 2 is provided with a rotating end 21 on one side parallel to the cutter assembly 1 in the initial position, and the other end is a movable end 22. The rotating end 21 of the cover assembly 2 is rotatably connected to the dust removal shell 3 via a rotating shaft. Under the action of the rotating push assembly 12, the cutter assembly 1 pushes the cover assembly 2 open along the movable end 22, and rotates to the cutting position to perform a cutting action on the material strip. At this time, the cover assembly 2 moves up to a certain position with the rotating end 21 as the center, and an opening of a certain size is formed between it and the dust removal shell 3, through which the adsorbed material generated by the cutting action can be sucked into the dust removal duct 4. Since the angle of the opening is usually an acute angle, after the cutter assembly 1 is reset to the initial position, the cover assembly 2 is affected by gravity and falls down to cover the dust removal shell 3 with the rotating end 21 as the center to prevent the adsorbed material from being missed.

[0072] In order to prevent the cover assembly 2 from being pushed open too far and unable to be closed due to the fast rotation of the cutter assembly 1, the cover assembly 2 may be made of a material with high density and weight, such as metal or high-density plastic.

[0073] Optionally, the cover assembly 2 further comprises a movable end 22 away from the rotating end 21, and the cutter assembly 1 pushes the cover assembly 2 along the movable end 22;

[0074] The movable end 22 is provided with a first fixing member 23 , and the second side wall of the dust removal housing 3 is provided with a second fixing member 34 . The first fixing member 23 and the second fixing member 34 are connected via an elastic member 5 .

[0075] In this embodiment, in order to further improve the covering efficiency of the cover assembly 2 and prevent residue from being missed, a first fixing member 23 and a second fixing member 34 may be respectively provided on the movable end 22 of the cover assembly 2 and the outer side of the second side wall of the dust removal shell 3, and the first fixing member 23 and the second fixing member 34 are connected by an elastic member 5. Through the setting of the elastic member 5, the dust removal shell 3 and the cover assembly 2 utilize the restoring force, and when the cutter assembly 1 is retracted into the dust removal shell 3, the cover assembly 2 is immediately closed.

[0076] Wherein, the elastic member 5 is a return spring.

[0077] The return spring can usually be made of steel wire, and its structure mainly includes two parts: a spiral spring body and fixed rings at both ends. The spiral spring body can be composed of multiple spiral coils, and its diameter and wire diameter can be determined according to different needs. The fixed ends at both ends are respectively connected to the first fixing member 23 and the second fixing member 34 to improve its return resilience performance.

[0078] In the embodiment of the utility model, a cutter dust removal device is provided, which includes a cutter assembly, a cover assembly and a dust removal shell for collecting adsorbed materials generated by cutting action; the cover assembly is movably connected with the dust removal shell and covers the opening of the dust removal shell; the cutter assembly is installed in the dust removal shell, and is used to push open the cover assembly and perform the cutting action. The cutting action and reset are completed by rotating the cutter assembly between the initial position and the cutting position, and the cover assembly is opened and closed by linkage, thereby reducing the opening and closing degree of the dust removal shell opening to increase the adsorption force on the residue and enhance the dust removal effect.

[0079] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0080] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The various embodiments can be combined as needed, and the same or similar parts can refer to each other.

[0081] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cutter dust removal device, characterized in that: It comprises a cutting blade assembly (1), a cover assembly (2) and a dust removal shell (3) for collecting adsorbed matter generated by the cutting action; The cover assembly (2) is movably connected to the dust removal shell (3) and covers the opening of the dust removal shell (3); The cutter assembly (1) is installed in the dust removal shell (3) and is used to push open the cover assembly (2) and perform the cutting action.

2. The cutter dust removal device according to claim 1, characterized in that: It also includes a dust removal duct (4) connected to the dust removal housing (3) and used for providing negative pressure to absorb the adsorbent.

3. The cutter dust removal device according to claim 2, characterized in that: The dust removal housing (3) is a box body with an opening on one side; At least one dust removal hole is provided on the first side wall of the dust removal housing (3), and is connected to the dust removal duct (4) through the dust removal hole.

4. The cutter dust removal device according to claim 1, characterized in that: The cutter assembly (1) comprises a cutter mechanism (11) and a rotating push assembly (12), and a connecting rod (31) is also provided in the dust removal housing (3); The rotating pushing components (12) are respectively installed at both ends of the cutting mechanism (11); The rotating pushing assembly (12) is sleeved on the connecting rod (31), and the connecting rod (31) is rotated to drive the cutting mechanism (11) to rotate from an initial position to a cutting position, so as to perform the cutting action.

5. The cutter dust removal device according to claim 4, characterized in that: The cutter assembly (1) further comprises at least one detection assembly (13); The detection component (13) is mounted on the cutter mechanism (11) and is used to detect the rotation position of the cutter mechanism (11).

6. The cutter dust removal device according to claim 4, characterized in that: The cutter mechanism (11) comprises a cutter (111) and a cutter mounting plate (112); The cutter (111) is installed on one side of the cutter mounting plate (112), and the cutting edge is higher than the cutter mounting plate (112); Each of the rotating pushing components (12) is mounted on the other side of the cutter mounting plate (112).

7. The cutter dust removal device according to claim 4, characterized in that: The dust removal housing (3) further comprises a driving mechanism (32) and a connecting member (33); One end of the connecting rod (31) is mounted on one end of the dust removal housing (3) via the connecting piece (33), and the connecting rod (31) and the connecting piece (33) are rotatable. The driving mechanism (32) is installed on the outside of the dust removal housing (3); The output end of the driving mechanism (32) is connected to the other end of the connecting rod (31) and is used to drive the connecting rod (31) to rotate.

8. The cutter dust removal device according to claim 1, characterized in that: The rotating end (21) of the cover assembly (2) is rotatably connected to the dust removal housing (3) via a rotating shaft.

9. The cutter dust removal device according to claim 8, characterized in that: The cover assembly (2) further comprises a movable end (22) away from the rotating end (21), and the cutter assembly (1) pushes the cover assembly (2) open along the movable end (22); The movable end (22) is provided with a first fixing member (23), the second side wall of the dust removal housing (3) is provided with a second fixing member (34), and the first fixing member (23) and the second fixing member (34) are connected via an elastic member (5).

10. The cutter dust removal device according to claim 9, characterized in that: The elastic member (5) is a return spring.

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