Battery pole belt winding drum and battery pole belt winding and unwinding equipment

Abstract

The utility model discloses a battery pole band winding drum and battery pole band winding and unwinding equipment, and belongs to the technical field of battery manufacturing, the battery pole band winding drum comprises a winding drum body, the winding drum body is provided with an outer drum surface used for winding and unwinding a battery pole band, the winding drum body is provided with a sinking groove, the sinking groove penetrates through the outer drum surface, and the sinking groove is used for containing part of the battery pole band; the suction part is arranged in the sinking groove and fixed to the winding drum body; the pressing piece is embedded in the sinking groove, and the suction piece can generate suction force on the pressing piece, so that the pressing piece abuts against the groove wall of the sinking groove, and the battery pole band is jointly clamped and fixed through the pressing piece and the winding drum body. The operation steps of disassembling and assembling the battery pole belt by the winding drum body are simplified, and the efficiency of winding and unwinding the battery pole belt is improved.

Description

Technical Field

[0001] The present application belongs to the field of battery manufacturing technology, and specifically relates to a battery strip reel and a battery strip winding and unwinding device. Background Art

[0002] During battery manufacturing, the positive and negative electrode ribbons must be unfolded, stacked, and cut separately. To facilitate this, a reel is typically used to quickly reel the ribbons. To secure one end of the ribbon to the reel for easy unwinding during its rotation, adhesive tape is typically applied to the reel in advance. This process is not only inconvenient but also prone to leaving adhesive residue on the reel, making it difficult to clean and potentially causing deformation. Utility Model Content

[0003] Purpose of the utility model: An embodiment of the present application provides a battery pole tape reel, aiming to solve the above-mentioned technical problems; another purpose of the present application is to provide a battery pole tape winding and unwinding device using the above-mentioned battery pole tape reel.

[0004] Technical solution: A battery strip reel according to an embodiment of the present application includes:

[0005] A reel body, the reel body having an outer cylindrical surface for reeling in and unreeling the battery electrode strip, the reel body being provided with a sunken groove, and the sunken groove penetrating the outer cylindrical surface, the sunken groove being used to accommodate a portion of the battery electrode strip;

[0006] A suction member, the suction member is arranged in the sink and fixed to the reel body;

[0007] A pressing piece is embedded in the sink, and the suction piece can generate suction on the pressing piece, so that the pressing piece abuts against the groove wall of the sink, so that the battery pole strip is clamped and fixed by the pressing piece and the reel body.

[0008] In some embodiments, the battery ribbon reel further comprises:

[0009] A hinged part is provided in the sink and connected to the reel body, and the pressing part is hinged to the hinged part, and the hinged part is configured to allow the pressing part to rotate and disengage from the sink to release the battery pole strip.

[0010] In some embodiments, the hinge is provided in plurality;

[0011] The pressing part includes a plurality of pressing sub-parts which are separately arranged. The plurality of pressing sub-parts are respectively embedded in the sinking groove, and each of the pressing sub-parts is hinged to at least one of the hinged parts.

[0012] In some embodiments, the plurality of hinges include a first hinge and a second hinge, the sink has a first end and a second end oppositely disposed in the axial direction of the reel body, the first hinge is disposed at the first end, and the second hinge is disposed at the second end;

[0013] The plurality of pressing sub-parts include a first pressing sub-part and a second pressing sub-part, wherein the first pressing sub-part and the second pressing sub-part are distributed along the axial direction of the reel body, and the first pressing sub-part is hinged to the first hinge, and the second pressing sub-part is hinged to the second hinge.

[0014] In some embodiments, there is one suction member, and the suction member respectively attracts a plurality of the pressing sub-parts;

[0015] Alternatively, there are a plurality of the suction members, and each of the pressing sub-parts is sucked by at least part of the suction members.

[0016] In some embodiments, there are multiple suction components, and the suction components are configured as magnetic components.

[0017] In some embodiments, the sink includes a bottom wall and a peripheral wall surrounding the bottom wall. The suction member is provided on the bottom wall, and the peripheral wall is provided with an abutting portion for abutting the pressing member.

[0018] In some embodiments, the pressing member has a mating surface facing away from the bottom wall of the groove, and the mating surface extends around the axis of the reel body and coincides with the outer cylinder surface.

[0019] In some embodiments, the drum body is provided with an avoidance groove, which passes through the outer drum surface and is connected to the sinking groove.

[0020] Correspondingly, a battery electrode tape winding and unwinding device described in an embodiment of the present application includes the above-mentioned battery electrode tape reel.

[0021] Beneficial effects: The battery strip reel of the embodiment of the present application includes a reel body, a suction member, and a pressing member. The reel body has an outer cylindrical surface for reeling and unreeling the battery strip, and the reel body is provided with a recessed groove, which runs through the outer cylindrical surface and is used to accommodate part of the battery strip; the suction member is provided in the recessed groove and fixed to the reel body; the pressing member is embedded in the recessed groove, and the suction member can generate suction on the pressing member, so that the pressing member abuts against the groove wall of the recessed groove, so as to clamp and fix the battery strip together through the pressing member and the reel body. The recessed groove serves as a clamping area for the pressing member to be embedded and for the battery strip to be partially extended. Before reeling the battery strip, one end of the battery strip is pre-extended into the recessed groove, and then the pressing member is embedded in the recessed groove. The suction generated by the suction member makes the pressing member abut against the groove wall of the recessed groove, so that the pressing member can clamp and fix the battery strip relative to the reel body, facilitating driving the reel body to reel the battery strip. After unwinding the battery strip, if the remaining end needs to be removed, the pressing piece is removed from the trough to remove the remaining end of the battery strip, making it easier to rewind another battery strip. The combination of the pressing piece, trough, and suction piece simplifies the steps for removing and installing the battery strip on the reel body, improving the efficiency of unwinding and rewinding the battery strip. Compared to fixing the battery strip with adhesive methods such as tape, this avoids problems such as residual colloid on the reel body and reduces the need for post-use maintenance of the reel body. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 This is a schematic structural diagram of a battery strip reel according to an embodiment of the present application;

[0024] Figure 2 This is a schematic structural diagram of a battery strip reel according to another embodiment of the present application;

[0025] Figure 3 This is a structural diagram of an attraction member and an avoidance groove in another embodiment of the present application;

[0026] Figure 4 This is a schematic structural diagram of an attractive member according to another embodiment of the present application;

[0027] Figure 5 This is a schematic structural diagram of a battery strip reel according to another embodiment of the present application;

[0028] Figure markings: 1. Reel body; 10. Outer cylinder surface; 11. Sink; 110. First end; 111. Second end; 112. Groove bottom wall; 113. Groove peripheral wall; 12. Avoidance groove; 2. Suction part; 3. Pressing part; 30. First pressing sub-part; 31. Second pressing sub-part; 32. Mating surface; 4. Hinge; 40. First hinge; 41. Second hinge; 5. Battery pole strip. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0030] In the description of the present application, it should be understood that the terms "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application 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 application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, "multiple" means two or more, and at least one means one, two or more, unless otherwise clearly and specifically defined.

[0031] At present, in the battery manufacturing process, it is necessary to unfold, stack, and cut the positive and negative electrode strips in the battery strips separately. In order to facilitate the operation, a reel is usually used to quickly reel in and unreel the battery strips.

[0032] In order to fix one end of the pole tape to the reel so that the pole tape can be pulled during the rotation of the reel, a tape is usually attached to the reel in advance or the pole tape is bonded using glue or the like.

[0033] However, applying tape or glue is inconvenient, requiring manual positioning and application. The tape or glue itself is an additional consumable, requiring significant consumption, increasing consumable costs. Furthermore, the use of tape or glue can easily leave residual adhesive on the roll, making it difficult to clean. To maintain the roll's surface flatness, the roll is regularly milled to remove the adhesive, which can easily cause deformation and increase maintenance costs.

[0034] In view of this, combined with Figures 1 to 5 , an embodiment of the present application provides a battery pole tape reel, aiming to overcome at least one of the above-mentioned technical problems.

[0035] Example 1:

[0036] Reference Figure 1 A battery strip reel includes a reel body 1, an attraction component 2 and a pressing component 3.

[0037] The reel body 1 has an outer surface 10, which is provided with a recessed groove 11 extending through the outer surface 10. The outer surface 10 is used to wind the battery strip 5, and before winding, a portion of the battery strip 5 is received within the recessed groove 11. The suction element 2 is disposed within the recessed groove 11 and fixed to the reel body 1. The pressing element 3 is embedded in the recessed groove 11. The suction element 2 can generate suction on the pressing element 3, causing it to abut against the wall of the recessed groove 11, thereby clamping and securing the battery strip 5 together with the pressing element 3 and the reel body 1.

[0038] The sink 11 serves as a clamping area for the pressing piece 3 to be embedded and for the battery electrode strip 5 to partially extend into. Before winding the battery electrode strip 5, one end of the battery electrode strip 5 is pre-extended into the sink 11, and then the pressing piece 3 is embedded in the sink 11. The suction force generated by the suction piece 2 is used to make the pressing piece 3 abut against the groove wall of the sink 11, so that the pressing piece 3 can clamp and fix the battery electrode strip 5 relative to the reel body 1, making it convenient to drive the reel body 1 to wind up the battery electrode strip 5.

[0039] After unwinding the battery electrode strip 5 , when the remaining end of the battery electrode strip 5 needs to be removed, the pressing piece 3 can be removed from the sink 11 to remove the remaining end of the battery electrode strip 5, making it convenient to rewind another battery electrode strip 5.

[0040] The cooperation of the pressing part 3, the sinking groove 11 and the suction part 2 is helpful to simplify the operation steps of disassembling and assembling the battery pole strip 5 of the reel body 1, improve the efficiency of winding and unwinding the battery pole strip 5, and compared with fixing the battery pole strip 5 by adhesive methods such as attaching tape, avoid problems such as residual colloid in the reel body 1, and reduce the maintenance requirements of the reel body 1 after use.

[0041] Specifically, in this embodiment, the engaging member 2 can be a magnetic member pre-set within the sink 11, and the magnetic member can be a magnet. The sink 11 includes a bottom wall 112 and a peripheral wall 113 surrounding the bottom wall 112. By embedding the magnetic member within the bottom wall 112, so that it faces the side of the pressing member 3 facing the bottom wall 112, the effective area of the pressing member 3 pressing down on the battery pole strip 5 is increased. Accordingly, the pressing member 3 can be made of ferromagnetic material or similarly provided with a magnet capable of attracting the magnetic member.

[0042] It is understandable that in other embodiments, the suction member 2 may also be embedded in the groove peripheral wall 113 , which will not be described in detail here.

[0043] It should be noted that in this embodiment, the suction member 2 is a magnetic suction member. Thanks to the suction member 2 using magnetic force to attract the pressing member 3, the battery pole strip 5 can be directly laid between the pressing member 3 and the suction member 2, that is, the battery pole strip 5 can completely cover the bottom wall 112 of the groove. In addition, the battery pole strip 5 can also only partially cover or not cover the bottom wall 112 of the groove. When the force of the suction member 2 attracting the pressing member 3 is sufficient, it is sufficient to fix the battery pole strip 5.

[0044] In other embodiments, the suction member 2 may also be in the form of a vacuum nozzle, etc. The difference from the suction member 2 being a magnetic suction member is that when the battery strip 5 is placed in the sink 11, the battery strip 5 needs to not cover the suction member 2 to ensure that there is no obstruction between the suction member 2 and the pressing member 3, ensuring that the suction member 2 can stably attract the pressing member 3.

[0045] In some embodiments, reference Figure 1 , multiple engaging members 2 are provided. The multiple engaging members 2 can be evenly distributed along the length of the reel body 1. It is understandable that in order to improve the stability of the pressing member 3 embedded in the sink 11, increasing the number of engaging members 2 is beneficial to increasing the number of force points. At the same time, the uniform distribution of multiple engaging members 2 along the width of the battery strip 5 is beneficial to further optimize the uniform distribution of force points and improve the stability of the fixed battery strip 5.

[0046] In other embodiments, the suction member 2 may also be one, such as Figure 4 , when the force exerted by the suction part 2 to attract the pressing part 3 is sufficient, it is sufficient to fix the battery pole strip 5.

[0047] In addition, in some embodiments, the drum body 1 is provided with an escape groove 12, which passes through the outer cylinder surface 10 and is connected to the sink 11. The escape groove 12 can be similar to Figure 3 The avoidance groove 12 is shown.

[0048] Furthermore, in some embodiments, reference Figure 1 The pressing member 3 has a mating surface 32 facing away from the groove bottom wall 112. The mating surface 32 can be configured as a curved surface to match the curvature of the outer cylindrical surface 10. Specifically, after the pressing member 3 is inserted into the recessed groove 11, the mating surface 32 can improve the integrity of the outer cylindrical surface 10, substantially maintaining the outer cylindrical surface 10 as a complete cylindrical side surface, thereby reducing the impact on the winding accuracy of the battery electrode strip 5.

[0049] When it is necessary to manually remove the pressing piece 3 and place the battery pole strip 5, the avoidance groove 12 allows a person to reach into the sink 11 to pull the pressing piece 3, so as to manually overcome the suction force of the suction piece 2 and remove the pressing piece 3.

[0050] Furthermore, in some embodiments, the groove peripheral wall 113 may be provided with an abutting portion for abutting the pressing member 3. The abutting portion may be a structure such as a ridge or a rubber strip to increase friction, thereby improving the stability of the pressing member 3 embedded in the sink 11.

[0051] Example 2:

[0052] Reference Figure 2 and Figure 3 The difference between this embodiment and embodiment 1 is that the battery strip reel further includes a hinge 4. The hinge 4 is disposed in the sink 11 and connected to the reel body 1. The pressing member 3 is hingedly connected to the hinge 4. The hinge 4 is configured to allow the pressing member 3 to rotate and disengage from the sink 11 to release the battery strip 5.

[0053] Specifically, refer to Figure 2 In this embodiment, the hinge 4 can be provided on one side of the press-fitting part 3 in the width direction. One or more hinges 4 can be provided. In this embodiment, two hinges 4 are used as an example. The two hinges 4 are distributed along the length of the press-fitting part 3 at both ends of the press-fitting part 3. In other embodiments, the number of hinges 4 can be flexibly increased or decreased as long as the press-fitting part 3 can be stably hinged.

[0054] By setting the hinge 4, the pressing part 3 remains connected to the reel body 1. Compared with Example 1, no additional placement area is required to place the pressing part 3, which improves the convenience of using the pressing part 3 and further improves the stability of the pressing part 3 embedded in the sink 11.

[0055] Example 3:

[0056] Reference Figure 5 The difference between this embodiment and embodiment 2 is that the pressing part 3 includes a plurality of pressing sub-parts arranged separately, the plurality of pressing sub-parts are respectively embedded in the sink 11, and each pressing sub-part is hinged to at least one hinge part 4.

[0057] Specifically, in this embodiment, two pressed sub-sections are used as an example. Accordingly, the plurality of hinges 4 include a first hinge 40 and a second hinge 41. The sink 11 has a first end 110 and a second end 111 oppositely disposed in the axial direction of the reel body 1. The first hinge 40 is disposed at the first end 110, and the second hinge 41 is disposed at the second end 111.

[0058] The two pressing sub-parts include a first pressing sub-part 30 and a second pressing sub-part 31 . The first pressing sub-part 30 and the second pressing sub-part 31 are distributed along the length direction of the reel body 1 , and the first pressing sub-part 30 is hinged to the first hinge 40 , and the second pressing sub-part 31 is hinged to the second hinge 41 .

[0059] Structurally, the first pressing sub-portion 30 and the second pressing sub-portion 31 can move away from each other and release the battery pole strip 5 or move relative to each other until they are embedded in the recess 11 .

[0060] In other embodiments, the first hinge 40 and the second hinge 41 may also be provided on one side of the width direction of the first pressing sub-portion 30 and the second pressing sub-portion 31 as in Embodiment 2, which will not be described in detail here.

[0061] Accordingly, an embodiment of the present application provides a battery tape reeling and unwinding device, which includes the aforementioned battery tape reel. It is understood that the battery tape reeling and unwinding device can have all the technical features and corresponding beneficial effects of the aforementioned battery tape reel, which will not be repeated here.

[0062] The above is a detailed introduction to a battery electrode tape reel and a battery electrode tape winding and unwinding device provided in the embodiments of the present application, and specific examples are used to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solution and core idea of the present application; ordinary technicians in this field should understand that: they can still modify the technical solutions recorded in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not cause the essence of the corresponding technical solution to deviate from the scope of the technical solution of the embodiments of the present application.

Claims

1. A battery strip reel, characterized in that: include: A reel body (1), the reel body (1) having an outer cylindrical surface (10) for reeling in and unreeling a battery electrode strip (5), the reel body (1) being provided with a sink groove (11), and the sink groove (11) penetrating the outer cylindrical surface (10), the sink groove (11) being used to accommodate a portion of the battery electrode strip (5); An attraction member (2), the attraction member (2) being arranged in the sink (11) and fixed to the reel body (1); A pressing piece (3) is embedded in the sink (11), and the suction piece (2) can generate suction on the pressing piece (3), so that the pressing piece (3) abuts against the groove wall of the sink (11), so that the battery pole strip (5) is clamped and fixed by the pressing piece (3) and the reel body (1).

2. The battery tape reel according to claim 1, characterized in that: Also includes: A hinge (4), the hinge (4) being arranged in the sink (11) and connected to the reel body (1), and the pressing member (3) being hinged to the hinge (4), the hinge (4) being configured to allow the pressing member (3) to rotate and disengage from the sink (11) to release the battery strip (5).

3. The battery tape reel according to claim 2, characterized in that: The hinge (4) is provided with a plurality of hinges; The pressing part (3) comprises a plurality of separately arranged pressing sub-parts, the plurality of pressing sub-parts being respectively embedded in the sink (11), and each of the pressing sub-parts being hinged to at least one of the hinged parts (4).

4. The battery tape reel according to claim 3, characterized in that: The plurality of hinges (4) include a first hinge (40) and a second hinge (41); the sink (11) has a first end (110) and a second end (111) that are oppositely arranged in the axial direction of the reel body (1); the first hinge (40) is arranged at the first end (110), and the second hinge (41) is arranged at the second end (111); The plurality of pressing sub-sections include a first pressing sub-section (30) and a second pressing sub-section (31), wherein the first pressing sub-section (30) and the second pressing sub-section (31) are distributed along the axial direction of the reel body (1), and the first pressing sub-section (30) is hinged to the first hinge (40), and the second pressing sub-section (31) is hinged to the second hinge (41).

5. The battery tape reel according to claim 3, characterized in that: The suction member (2) is provided with one, and the suction member (2) respectively attracts a plurality of the pressing sub-parts; Alternatively, the suction member (2) is provided in plurality, and each of the pressing sub-parts is sucked by at least part of the suction member (2).

6. The battery tape reel according to claim 1, characterized in that: The attraction components (2) are provided in plurality, and the attraction components (2) are configured as magnetic attraction components.

7. The battery tape reel according to any one of claims 1 to 6, characterized in that: The sink trough (11) comprises a trough bottom wall (112) and a trough peripheral wall (113) surrounding the trough bottom wall (112); the suction member (2) is arranged on the trough bottom wall (112); and the trough peripheral wall (113) is provided with an abutting portion for abutting the pressing member (3).

8. The battery tape reel according to claim 7, characterized in that: The pressing piece (3) has a matching surface (32) facing away from the groove bottom wall (112), and the matching surface (32) extends around the axis of the reel body (1) and coincides with the outer cylinder surface (10).

9. The battery tape reel according to claim 1, characterized in that: The drum body (1) is provided with an avoidance groove (12), and the avoidance groove (12) passes through the outer drum surface (10) and is connected to the sinking groove (11).

10. A battery strip winding and unwinding device, characterized in that: Comprising the battery tape reel according to any one of claims 1 to 9.

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