Slitting and rolling all-in-one machine for composite current collector

Abstract

The utility model discloses a slitting and rolling all-in-one machine for a composite current collector. The all-in-one machine is sequentially provided with an unwinding mechanism, a slitting mechanism and a winding mechanism along the trend of a composite current collector film, the winding mechanism comprises a first winding mechanism and a second winding mechanism, a first rolling mechanism is arranged between the slitting mechanism and the first winding mechanism, and a second rolling mechanism is arranged between the slitting mechanism and the second winding mechanism. According to the slitting and rolling all-in-one machine for the composite current collector, after a composite current collector thin film is slit through the slitting mechanism, the slit thin film is rolled through the two rolling mechanisms, the wrinkled part can be rolled to be flat, and the flatness of the thin film is improved; before slitting, the film is rolled once through the rolling mechanism, so that salient points on the surface of the film can be improved or removed, the occurrence rate of wrinkles on the surface of the slit film is reduced, the flatness of the film is further improved, and the quality of the composite current collector film is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of composite current collector processing, and in particular relates to a composite current collector slitting and rolling integrated machine. Background Art

[0002] In the production process of composite current collectors, the composite current collector film material needs to be cut into multiple narrow materials. However, since the cutting position of the composite current collector film will be subject to a certain force when it is cut, this will cause wrinkles on the surface of the film after cutting; when there are many bumps on the surface of the cut composite current collector film, the wrinkles on the surface of the film after cutting are more obvious, resulting in a decrease in the quality of the composite current collector film after separation. Therefore, a composite current collector cutting and rolling machine is designed to solve the above problems.

[0003] It should be noted that the above introduction to the technical background is only for the convenience of providing a clear and complete description of the technical solutions of the utility model and for the convenience of understanding by those skilled in the art. It cannot be considered that the above technical solutions are well known to those skilled in the art simply because these solutions are described in the background technology section of the utility model. Utility Model Content

[0004] In order to overcome the above-mentioned deficiencies in the prior art, the purpose of the utility model is to provide a composite current collector slitting and rolling all-in-one machine.

[0005] In order to achieve the above purpose and other related purposes, the technical solution provided by the utility model is: a composite current collector slitting and rolling all-in-one machine, which is provided with an unwinding mechanism, a slitting mechanism and a winding mechanism in sequence along the direction of the composite current collector film; the winding mechanism includes a first winding mechanism and a second winding mechanism, a first rolling mechanism is provided between the slitting mechanism and the first winding mechanism, and a second rolling mechanism is provided between the slitting mechanism and the second winding mechanism. In this solution, after the composite current collector film is slid by the slitting mechanism, it is rolled by the first rolling mechanism and the second rolling mechanism respectively, so that the wrinkled part can be rolled flat, thereby improving the flatness of the film and ensuring the quality of the composite current collector film.

[0006] Furthermore, the first rolling mechanism includes a first upper rolling roller and a first lower rolling roller, at least one of which can be adjusted up and down; the second rolling mechanism includes a second upper rolling roller and a second lower rolling roller, at least one of which can be adjusted up and down. In this solution, by adjusting the distance between the upper rolling roller or the lower rolling roller, a better rolling force is obtained, so that the film passing through the rolling mechanism can obtain better flatness.

[0007] Furthermore, a third rolling mechanism is provided between the unwinding mechanism and the slitting mechanism, and the third rolling mechanism includes a left rolling roller and a right rolling roller, and at least one of the left rolling roller and the right rolling roller can be adjusted left and right. In this scheme, a rolling mechanism is provided between the unwinding mechanism and the slitting mechanism, that is, the film is rolled once before slitting, which can improve or remove the convex points on the surface of the film, thereby reducing the incidence of wrinkles on the surface of the film after slitting, further improving the flatness of the film, and ensuring the quality of the composite current collector film.

[0008] Furthermore, a plurality of guide rollers are arranged between the unwinding mechanism and the winding mechanism, and each of the guide rollers is arranged at intervals between the unwinding mechanism and the third rolling mechanism, between the third rolling mechanism and the slitting mechanism, and between the slitting mechanism and the winding mechanism. In this solution, a plurality of guide rollers are arranged and distributed at intervals between each mechanism, so that the film can be guided in multiple directions, and the arrangement of the overall structure is also convenient.

[0009] Furthermore, the angle formed by the film around the first rolling mechanism and the film around the second rolling mechanism is greater than 30°. In this embodiment, the angle formed by the film on the first rolling mechanism and the film on the second rolling mechanism is an acute angle, which can make the composite current collector film fit more closely with the winding roller of the winding mechanism, further reducing the incidence of wrinkles on the film surface after slitting.

[0010] Furthermore, a first pressing knife is arranged on one side of the first winding roller of the first winding mechanism, one end of the first pressing knife is arranged to abut against the first winding roller, and the other end of the first pressing knife is rotatably arranged on the integrated machine; a second pressing knife is arranged on one side of the second winding roller of the second winding mechanism, one end of the second pressing knife is arranged to abut against the second winding roller, and the other end of the second pressing knife is rotatably arranged on the integrated machine. In this solution, by pressing down the winding roller of the winding mechanism, the composite current collector film can be more closely fitted to the winding roller, further reducing the incidence of wrinkles on the film surface after slitting.

[0011] Furthermore, the length of the first pressing blade is greater than or equal to the axial length of the first winding roller; the length of the second pressing blade is greater than or equal to the axial length of the second winding roller. In this solution, the length of the pressing blade is set to be not less than the length of the winding roller, which can ensure that the film on the winding roller is pressed in place and rolled in place.

[0012] Furthermore, the integrated machine also includes at least two CCD detection units, and one CCD detection unit is provided on each of the two surfaces of the film. In this solution, the CCD detection unit can detect defects such as pinholes, dust, dirt, etc. on both sides of the film, evaluate the product quality, and ensure the product quality.

[0013] Furthermore, a heating mechanism is provided between the third rolling mechanism and the unwinding mechanism, and the heating mechanism includes a first heating element and a second heating element for heating the two side surfaces of the film respectively. In this solution, before rolling the composite current collector film, the film is first heated by the heating mechanism, so that the convex points on the surface of the film can be rolled flat more easily.

[0014] Furthermore, the heating mechanism is provided with a temperature control system. In this solution, the temperature control system can monitor and control the heating temperature, control the heating problem within a suitable range, and avoid excessive temperature affecting the film quality.

[0015] Due to the application of the above technical solution, the utility model has the following beneficial effects compared with the prior art:

[0016] The utility model designs a composite current collector slitting and rolling integrated machine. After the composite current collector film is slit by the slitting mechanism, the slit film is rolled by two rolling mechanisms respectively, so that the wrinkled part can be rolled flat, thereby improving the flatness of the film; before slitting, the film is also rolled once by the rolling mechanism, which can improve or remove convex points on the surface of the film, thereby reducing the incidence of wrinkles on the surface of the film after slitting, further improving the flatness of the film, and ensuring the quality of the composite current collector film. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the slitting and rolling integrated machine of the utility model;

[0018] In the above drawings, 1, film; 2, unwinding mechanism; 3, slitting mechanism; 4, first winding mechanism; 5, second winding mechanism; 6, first upper roller; 7, first lower roller; 8, second upper roller; 9, second lower roller; 10, left roller; 11, right roller; 12, guide roller; 13, first pressing knife; 14, second pressing knife; 15, CCD detection unit; 16, heating mechanism. DETAILED DESCRIPTION

[0019] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0020] It should be noted that in the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. Terms such as "horizontal", "vertical", and "overhanging" do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0021] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0023] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0024] Embodiment 1: See attached Figure 1As shown, this embodiment provides a composite current collector slitting and rolling integrated machine, which is sequentially provided with an unwinding mechanism 2, a slitting mechanism 3 and a winding mechanism along the direction of the composite current collector film 1; the winding mechanism includes a first winding mechanism 4 and a second winding mechanism 5, a first rolling mechanism is provided between the slitting mechanism 3 and the first winding mechanism 4, and a second rolling mechanism is provided between the slitting mechanism 3 and the second winding mechanism 5. In this embodiment, after the composite current collector film 1 is slid by the slitting mechanism 3, it is rolled by the first rolling mechanism and the second rolling mechanism respectively, so that the wrinkled part can be rolled flat, thereby improving the flatness of the film 1 and ensuring the quality of the composite current collector film 1.

[0025] Embodiment 2: See attached Figure 1 As shown, this embodiment is a further improvement on the basis of the first embodiment, and its specific method is as follows: the first rolling mechanism includes a first upper rolling roller 6 and a first lower rolling roller 7, and at least one of the first upper rolling roller 6 and the first lower rolling roller 7 can be adjusted up and down; the second rolling mechanism includes a second upper rolling roller 8 and a second lower rolling roller 9, and at least one of the second upper rolling roller 8 and the second lower rolling roller 9 can be adjusted up and down. In this embodiment, by adjusting the distance between the upper rolling roller or the lower rolling roller, a better rolling pressure is obtained, so that the film 1 passing through the rolling mechanism can obtain a better flatness.

[0026] Embodiment 3: See attached Figure 1 As shown, this embodiment is a further improvement on the basis of the second embodiment, and its specific method is: a third rolling mechanism is arranged between the unwinding mechanism 2 and the slitting mechanism 3, and the third rolling mechanism includes a left rolling roller 10 and a right rolling roller 11, and at least one of the left rolling roller 10 and the right rolling roller 11 can be adjusted left and right. In this embodiment, a rolling mechanism is arranged between the unwinding mechanism 2 and the slitting mechanism 3, that is, the film 1 is rolled once before slitting, which can improve or remove the convex points on the surface of the film 1, thereby reducing the incidence of wrinkles on the surface of the film 1 after slitting, further improving the flatness of the film 1, and ensuring the quality of the composite current collector film 1.

[0027] Embodiment 4: See attached Figure 1 As shown, this embodiment is a further improvement on the basis of the third embodiment, and its specific method is: a plurality of guide rollers 12 are arranged between the unwinding mechanism 2 and the winding mechanism, and each guide roller 12 is arranged at intervals between the unwinding mechanism 2 and the third rolling mechanism, the third rolling mechanism and the slitting mechanism 3, and the slitting mechanism 3 and the winding mechanism. In this embodiment, a plurality of guide rollers 12 are arranged and distributed at intervals between each mechanism, so that the film 1 can be guided in multiple directions, and the arrangement of the overall structure is also convenient.

[0028] Embodiment 5: See attached Figure 1As shown, this embodiment is a further improvement on the basis of the first embodiment, and its specific method is: the angle a formed by the film 1 around the first rolling mechanism and the film 1 around the second rolling mechanism is greater than 30°. In this embodiment, the angle formed by the film 1 on the first rolling mechanism and the film 1 on the second rolling mechanism is an acute angle a, which can make the composite current collector film 1 more closely attached to the winding roller of the winding mechanism, and further reduce the incidence of wrinkles on the surface of the film 1 after slitting; the angle a can be 35°, 40°, 45°, 50°, 60°, 70°, 80°.

[0029] Embodiment 6: See attached Figure 1 As shown, this embodiment is a further improvement on the basis of the first embodiment, and its specific method is as follows: a first pressing knife 13 is arranged on one side of the first winding roller of the first winding mechanism 4, one end of the first pressing knife 13 is set against the first winding roller, and the other end of the first pressing knife 13 is rotatably set on the integrated machine; a second pressing knife 14 is arranged on one side of the second winding roller of the second winding mechanism 5, one end of the second pressing knife 14 is set against the second winding roller, and the other end of the second pressing knife 14 is rotatably set on the integrated machine. In this embodiment, the winding roller that presses down against the winding mechanism can make the composite current collector film 1 fit more closely with the winding roller, and further reduce the incidence of wrinkles on the surface of the film 1 after slitting.

[0030] Embodiment 7: Not shown in the drawings, this embodiment is a further improvement on the basis of Embodiment 6, and its specific method is as follows: the length of the first pressing blade 13 is greater than or equal to the axial length of the first winding roller; the length of the second pressing blade 14 is greater than or equal to the axial length of the second winding roller. In this embodiment, the length of the pressing blade is set to be not less than the length of the winding roller, which can ensure that the film 1 on the winding roller is pressed in place and rolled in place.

[0031] Embodiment 8: See attached Figure 1 As shown, this embodiment is a further improvement on the basis of the first embodiment, and its specific method is as follows: the all-in-one machine further includes at least two CCD detection units 15, and a CCD detection unit 15 is respectively provided on the two surfaces of the film 1. In this embodiment, the CCD detection unit 15 can detect defects such as pinholes, dust, and dirt on the two sides of the film 1, evaluate the product quality, and ensure the product quality.

[0032] Embodiment 9: See attached Figure 1As shown, this embodiment is a further improvement on the basis of the third embodiment, and its specific method is as follows: a heating mechanism 16 is provided between the third rolling mechanism and the unwinding mechanism 2, and the heating mechanism 16 includes a first heating element and a second heating element for respectively heating the two side surfaces of the film 1. In this embodiment, before rolling the composite current collector film 1, it is first heated by the heating mechanism 16, so that the convex points on the surface of the film 1 can be rolled flat more easily.

[0033] Embodiment 10: Although not shown in the drawings, this embodiment is a further improvement on the basis of embodiment 9, and its specific method is as follows: the heating mechanism 16 is provided with a temperature control system. In this embodiment, the temperature control system is provided to monitor and control the heating temperature, control the heating problem within a suitable range, and avoid excessive temperature affecting the quality of the film 1.

[0034] The utility model designs a composite current collector slitting and rolling integrated machine. After the composite current collector film is slit by the slitting mechanism, the slit film is rolled by two rolling mechanisms respectively, so that the wrinkled part can be rolled flat, thereby improving the flatness of the film; before slitting, the film is also rolled once by the rolling mechanism, which can improve or remove convex points on the surface of the film, thereby reducing the incidence of wrinkles on the surface of the film after slitting, further improving the flatness of the film, and ensuring the quality of the composite current collector film.

[0035] The above implementation modes are only for illustrating the technical concept and features of the utility model, and their purpose is to allow people familiar with this technology to understand the content of the utility model and implement it. It cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A composite current collector slitting and rolling integrated machine, wherein the integrated machine is provided with an unwinding mechanism (2), a slitting mechanism (3) and a winding mechanism in sequence along the direction of the composite current collector film (1); characterized in that: The winding mechanism comprises a first winding mechanism (4) and a second winding mechanism (5); a first rolling mechanism is arranged between the slitting mechanism (3) and the first winding mechanism (4); and a second rolling mechanism is arranged between the slitting mechanism (3) and the second winding mechanism (5).

2. The composite current collector slitting and rolling integrated machine according to claim 1, characterized in that: The first rolling mechanism comprises a first upper rolling roller (6) and a first lower rolling roller (7), and at least one of the first upper rolling roller (6) and the first lower rolling roller (7) is adjustable up and down; the second rolling mechanism comprises a second upper rolling roller (8) and a second lower rolling roller (9), and at least one of the second upper rolling roller (8) and the second lower rolling roller (9) is adjustable up and down.

3. The composite current collector slitting and rolling integrated machine according to claim 2, characterized in that: A third rolling mechanism is arranged between the unwinding mechanism (2) and the slitting mechanism (3), and the third rolling mechanism comprises a left rolling roller (10) and a right rolling roller (11), and at least one of the left rolling roller (10) and the right rolling roller (11) can be adjusted leftward and rightward.

4. The composite current collector slitting and rolling integrated machine according to claim 3, characterized in that: A plurality of guide rollers (12) are arranged between the unwinding mechanism (2) and the winding mechanism, and each of the guide rollers (12) is arranged at intervals between the unwinding mechanism (2) and the third rolling mechanism, between the third rolling mechanism and the slitting mechanism (3), and between the slitting mechanism (3) and the winding mechanism.

5. The composite current collector slitting and rolling integrated machine according to claim 1, characterized in that: The angle formed by the film (1) passing through the first rolling mechanism and the film (1) passing through the second rolling mechanism is greater than 30°.

6. The composite current collector slitting and rolling integrated machine according to claim 1, characterized in that: A first pressing knife (13) is arranged on one side of the first winding roller of the first winding mechanism (4), one end of the first pressing knife (13) is arranged to abut against the first winding roller, and the other end of the first pressing knife (13) is rotatably arranged on the integrated machine; a second pressing knife (14) is arranged on one side of the second winding roller of the second winding mechanism (5), one end of the second pressing knife (14) is arranged to abut against the second winding roller, and the other end of the second pressing knife (14) is rotatably arranged on the integrated machine.

7. The composite current collector slitting and rolling integrated machine according to claim 6, characterized in that: The length of the first pressing knife (13) is greater than or equal to the axial length of the first winding roller; the length of the second pressing knife (14) is greater than or equal to the axial length of the second winding roller.

8. The composite current collector slitting and rolling integrated machine according to claim 1, characterized in that: The integrated machine also comprises at least two CCD detection units (15), and one CCD detection unit (15) is provided on each of the two surfaces of the film (1).

9. The composite current collector slitting and rolling integrated machine according to claim 3, characterized in that: A heating mechanism (16) is provided between the third rolling mechanism and the unwinding mechanism (2), and the heating mechanism (16) comprises a first heating element and a second heating element for respectively heating the two side surfaces of the film (1).

10. The composite current collector slitting and rolling integrated machine according to claim 9, characterized in that: The heating mechanism (16) is provided with a temperature control system.

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