Imprint structure and imprint device

Abstract

The utility model relates to the technical field of pole piece production, and particularly discloses an imprinting structure and an imprinting device. The imprint structure comprises a pressing cylinder, a rolling part and an impressing part are arranged on the peripheral surface of the pressing cylinder; the rolling part comprises a rolling supporting surface which is continuously arranged in the circumferential direction of the pressing cylinder; and the impressing part is used for impressing materials. According to the scheme, the rolling supporting face is the continuous curved face, the supporting effect can be achieved in the rolling process of the pressing cylinder, jumping of the pressing cylinder is avoided, the stability and uniformity of the imprinting process are improved, then the rotating speed of the pressing cylinder can be increased, and the problems that an existing imprinting structure is poor in imprinting effect and low in efficiency are solved.

Description

Technical Field

[0001] This application relates to the field of electrode production technology, and in particular to an imprinting structure and imprinting device. Background Technology

[0002] Electrodes are one of the core components of a battery, used to provide channels for the transport of ions and electrons during the charging and discharging process; tabs are metallic conductors drawn from the electrodes inside the battery, used as connecting components between the electrodes and external circuits.

[0003] Embossing the tabs can improve their mechanical and electrical properties; therefore, in some processes, embossed structures need to be formed on the tabs. The embossed structure is generally formed by a pressure roller pressing an impression onto the surface of the tab. Correspondingly, such as... Figure 1 As shown, the surface of the pressure roller 1 needs to be provided with an uneven surface structure 2. However, during the embossing process, the uneven surface structure 2 of the existing pressure roller 1 causes the pressure roller 1 to jump relative to the plane of the tab, resulting in uneven embossing; at the same time, the uneven surface structure 2 limits the rolling speed of the pressure roller, resulting in low efficiency of the embossing process. Utility Model Content

[0004] In view of this, the purpose of this application is to provide an embossing structure and embossing apparatus to solve the problems of poor embossing effect and low efficiency of existing embossing structures.

[0005] To achieve the above-mentioned technical objectives, the first aspect of this application provides an embossing structure, including: an embossing cylinder;

[0006] The outer circumferential surface of the pressure cylinder is provided with a rolling part and an imprinting part;

[0007] The rolling part is arranged to form a rolling support surface along the circumference of the pressure cylinder;

[0008] The embossing section is used to emboss materials.

[0009] Furthermore, the embossing portion is provided with a protrusion;

[0010] The radius of the rolling part is greater than the radius of the protrusion on the embossing part.

[0011] Furthermore, the difference between the radius of the rolling part and the radius of the protrusion on the embossing part is greater than or equal to 0.01 mm.

[0012] Furthermore, the rolling part is disposed at one or both ends of the pressure cylinder.

[0013] Furthermore, the embossing portion includes alternating concave stripes and convex stripes;

[0014] The concave stripes and the convex stripes are arranged along the axial direction of the compression cylinder.

[0015] Further, the embossing part comprises a plurality of convex pieces.

[0016] The convex pieces are columnar or dome-shaped.

[0017] Further, the convex pieces are arranged in convex point lines along the axial direction of the compression cylinder.

[0018] The convex point lines are arranged in alignment or staggered.

[0019] Further, the embossing part comprises a plurality of strip-shaped grooves.

[0020] The strip-shaped grooves are arranged along the axial direction of the compression cylinder.

[0021] The convex pieces are arranged in the strip-shaped grooves.

[0022] Further, the embossing part is provided with a first concave-convex texture.

[0023] The rolling support surface is provided with a second concave-convex texture.

[0024] The first concave-convex texture and the second concave-convex texture are connected.

[0025] The second aspect of the present application provides a compression device, comprising a support, a power output and the compression structure according to any one of the above.

[0026] The support is used for supporting a material.

[0027] The compression cylinder in the compression structure is arranged beside the support, the compression cylinder is used for compressing the material, and the rolling part on the compression cylinder abuts against the support.

[0028] The power output is connected to the compression cylinder and used for driving the compression cylinder to rotate.

[0029] As can be seen from the above technical solutions, the present application provides a compression structure and a compression device; wherein the compression structure comprises a compression cylinder; the outer circumferential surface of the compression cylinder is provided with a rolling part and an embossing part; the rolling part comprises a rolling support surface arranged continuously along the circumferential direction of the compression cylinder; and the embossing part is used for compressing a material.

[0030] In the present solution, the rolling support surface is a continuous curved surface, which can play a supporting role in the rolling process of the compression cylinder, avoid the jumping of the compression cylinder, improve the stability and uniformity of the compression process, and thus enable the compression cylinder to improve the rotation rate, thereby solving the problems of poor compression effect and low efficiency of the existing compression structure. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced. Obviously, the accompanying drawings in the following description only are some embodiments of the present application, and all other drawings obtained by those of ordinary skill in the art without creative effort based on these drawings belong to the scope of the present application.

[0032] Figure 1 A schematic view of an existing embossing structure provided for the present application;

[0033] Figure 2 A schematic view of an embossing structure provided for the embodiments of the present application;

[0034] Figure 3 A front view of an embossing structure provided for the embodiments of the present application during embossing on a support;

[0035] Figure 4 A schematic view of an embossing structure provided for the embodiments of the present application, in which the embossing part comprises a protruding element;

[0036] Figure 5 Another schematic view of an embossing structure provided for the embodiments of the present application, in which the embossing part comprises a protruding element;

[0037] Figure 6 A schematic view of an embossing structure provided for the embodiments of the present application, in which the embossing part comprises a first concave-convex texture;

[0038] In the drawings:

[0039] 1, embossing wheel; 2, surface structure;

[0040] 10, embossing cylinder; 11, rolling part; 101, concave stripe; 102, convex stripe; 103, protruding element; 104, stripe-shaped groove; 12, embossing part; 20, support; 30, tab. DETAILED DESCRIPTION

[0041] The technical solutions of the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of the present application.

[0042] In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", "third" are only for the purpose of description and cannot be understood as indicating or implying relative importance.

[0043] In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood in a broad sense, for example, it can be fixedly connected, or it can be replaceably connected, or it can be integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0044] Please refer to Figure 2 , the first aspect of the embodiments of the present application provides a stamping structure, comprising: a pressure cylinder 10. The pressure cylinder 10 can be connected to a driving member such as a rotary motor, and the pressure cylinder 10 is driven to rotate by the driving member; the pressure cylinder 10 can roll on the surface of the material, so as to stamp the material.

[0045] In the present embodiment, as Figure 2 shown, the outer circumferential surface of the pressure cylinder 10 is provided with a rolling part 11 and a stamping part 12. Among them, the outer circumferential surface of the pressure cylinder 10 refers to the outer circumferential surface in the radial direction of the pressure cylinder 10. The rolling part 11 is continuously arranged along the circumferential direction of the pressure cylinder 10 to form a rolling support surface; the rolling support surface can keep contact with the support surface during the rotation of the pressure cylinder 10 to play a supporting role; the stamping part 12 is used for stamping the material. In the present embodiment, the material can refer to the tab. In other embodiments, the material can also be, for example, a component such as a tab.

[0046] During the stamping process, the pressure cylinder 10 and the material move relatively. Taking the example of the pressure cylinder 10 rolling on the surface of the tab 30, please refer to Figure 3 , the stamping part 12 is provided with a concave-convex undulating stamping texture structure, which can stamp the tab 30 to form a embossing structure on the surface of the tab 30. And in the process of rolling of the pressure cylinder 10, the rolling part 11 can keep abutting against the support 20, avoiding the situation that the pressure cylinder 10 jumps relative to the support 20 and the tab 30 due to the concave-convex undulating stamping texture structure, which can effectively improve the stability and uniformity of the stamping process of the pressure cylinder 10, and improve the stamping effect and efficiency.

[0047] In the embodiment, the rolling support surface can be a curved surface, an arc surface or a curved surface with a texture structure, and specifically, the rolling support surface is continuous along the circumferential direction of the pressure cylinder 10, so that the pressure cylinder 10 can roll smoothly.

[0048] As an implementation, the rolling part 11 can be arranged at any position of the pressure cylinder 10 along the axial direction of the pressure cylinder 10, and specifically, the rolling part 11 can play a supporting role.

[0049] In one embodiment, the rolling part 11 is arranged at one end of the pressure cylinder 10, as shown in Figure 2 and Figure 3 .

[0050] In another embodiment, the rolling part 11 is arranged at both ends of the pressure cylinder 10.

[0051] The rolling part 11 arranged at the end can keep the end position of the pressure cylinder 10 in abutment with the support 20, ensuring the smooth rolling and not affecting the impression of the impression part 12 in the middle region.

[0052] In application, the impression texture structure on the circumferential surface of the impression part 12 includes protrusions and depressions. The radii of the protrusions and the depressions are inconsistent; specifically, the radius of the protrusion on the impression part 12 is greater than the radius of the depression. The rolling part 11 has a curved rolling support surface, so in the axial side view of the pressure cylinder 10, the rolling part 11 is circular.

[0053] As an implementation, the rolling part 11 is flush with the protrusion of the impression part 12, and specifically, the rolling part 11 can play a supporting role.

[0054] In one embodiment, the radius of the rolling part 11 is greater than the radius of the protrusion on the impression part 12.

[0055] Specifically, in the embodiment, the rolling part 11 and the impression part 12 form a fault in the radial direction of the pressure cylinder 10. Since the material itself has a thickness, the material may pass between the support 20 and the impression part 12 during the impression process, so it is inevitable that there is a gap between the impression part 12 and the support 20. In the embodiment, the radius of the rolling part 11 is greater than the radius of the protrusion on the impression part 12, which can ensure that the rolling part 11 can abut the support 20 without the support 20 needing to be provided with a protrusion.

[0056] In practical application, the inventor finds that the difference between the radius of the rolling part 11 and the radius of the protrusion on the impression part 12 is greater than or equal to 0.01 mm, which can ensure the impression effect of the pressure cylinder 10 on the tab 30 and the stability during the impression process.

[0057] In one embodiment, please refer to Figure 2The embossing portion 12 comprises concave grooves 101 and convex ridges 102 arranged alternately, and the concave grooves 101 and the convex ridges 102 are arranged along the axial direction of the cylinder 10.

[0058] In the embodiment, the concave grooves 101 are in the form of grooves, and the convex ridges 102 are in the form of protrusions. The concave grooves 101 and the convex ridges 102 each comprise a plurality of grooves and protrusions, and the concave grooves 101 and the convex ridges 102 form the concave-convex embossing texture structure on the embossing portion 12.

[0059] Correspondingly, in the above embodiment, the radius of the protrusion on the embossing portion 12 refers to the radius of the position of the convex ridges 102.

[0060] In one embodiment, referring to Figure 4 or Figure 5 the embossing portion 12 comprises a plurality of protrusions 103, and the protrusions 103 are in the form of columns or domes.

[0061] In the embodiment, the plurality of protrusions 103 protrude outward relative to the outer circumferential surface of the cylinder 10, and the protrusions 103 form the concave-convex embossing texture structure on the embossing portion 12. In application, the protrusions 103 can be in the form of cylinders, square columns or domes, and correspondingly, the radius of the protrusion on the embossing portion 12 is the distance between the outer end of the protrusion 103 and the axial center of the cylinder 10.

[0062] As an implementation, referring to Figure 5 the protrusions 103 are arranged in the form of protrusion lines along the axial direction of the cylinder 10, and in Figure 5 the embodiment shown, the plurality of protrusion lines are arranged in a staggered manner. In other embodiments, the plurality of protrusion lines can also be arranged in an aligned manner.

[0063] As an implementation, referring to Figure 4 the embossing portion 12 comprises a plurality of strip-shaped grooves 104, the strip-shaped grooves 104 are arranged along the axial direction of the cylinder 10, and the protrusions 103 are arranged in the strip-shaped grooves 104.

[0064] In another embodiment, referring to Figure 6 the embossing portion 12 is provided with a first concave-convex texture, the rolling support surface is provided with a second concave-convex texture, and the first concave-convex texture and the second concave-convex texture are connected.

[0065] The first concave-convex texture can be in the form of a diamond pattern structure, and the second concave-convex texture is also in the form of a diamond pattern structure or a partial structure of the diamond pattern structure, as long as it can be connected with the first concave-convex texture. In the embodiment, the second concave-convex texture and the first concave-convex texture form a seamless transition connection structure.

[0066] Referring to Figure 3In the second aspect, the embossing device comprises a support 20, a power output and the embossing structure of any of the above embodiments. The support 20 is used to support the material. The cylinder 10 in the embossing structure is arranged beside the support 20. The cylinder 10 is used to emboss the material, and the rolling part 11 on the cylinder 10 abuts against the support 20. The power output is connected to the cylinder 10 to drive the cylinder 10 to rotate.

[0067] In the embodiment, the material can be a tab, a pole piece or the like. The support 20 can be a plane, such as a support table or a conveying belt used to convey the material. The power output can be a rotary motor, for example, and is in transmission connection with the rolling shaft of the axis of the cylinder 10.

[0068] The embossing device provided by the embodiment can drive the cylinder 10 in the embossing structure to roll through the power output, so that the cylinder 10 can emboss the material. During the embossing process, the rolling part 11 on the cylinder 10 can abut against the support 20 to support the cylinder 10, thereby solving the problems of poor embossing effect and low efficiency in the prior art, and improving the uniformity and stability of the cylinder 10 during the embossing process. The cylinder 10 can improve the rolling speed to improve the production efficiency.

[0069] The above is the preferred embodiment of the present application and is not intended to limit the present application. Although the present application is described in detail with reference to the examples, those skilled in the art can modify the technical solutions described in the above examples or replace some of the technical features with equivalent ones, but any modification, equivalent replacement, improvement or the like within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An embossed structure, characterized by The application relates to a cylinder (10) for pressing materials, and belongs to the technical field of pressing machines. The outer circumferential surface of the cylinder (10) is provided with a rolling part (11) and a pressing part (12). The rolling part (11) is arranged along the circumferential direction of the cylinder (10) to form a rolling support surface. The pressing part (12) is used for pressing materials. The pressing part (12) is provided with a convex part.

2. The embossed structure according to claim 1, characterized in that The radius of the rolling part (11) is greater than that of the convex part on the pressing part (12). The difference between the radius of the rolling part (11) and that of the convex part on the pressing part (12) is greater than or equal to 0.01 mm.

3. The embossed structure according to claim 2, characterized in that The rolling part (11) is arranged at one end or both ends of the cylinder (10).

4. The embossed structure of claim 1, wherein, The pressing part (12) comprises staggered concave stripes (101) and convex stripes (102).

5. The embossed structure according to any one of claims 1 to 4, characterized in that, The concave stripes (101) and the convex stripes (102) are arranged along the axial direction of the cylinder (10). The pressing part (12) comprises a plurality of convex pieces (103).

6. The embossed structure according to any one of claims 1 to 4, wherein The convex pieces (103) are columnar or dome-shaped. The convex pieces (103) are arranged into convex point lines along the axial direction of the cylinder (10) at intervals.

7. The embossed structure according to claim 6, characterized in that A plurality of the convex point lines are arranged in alignment or staggered. The pressing part (12) comprises a plurality of strip-shaped grooves (104).

8. The embossed structure of claim 6, wherein The strip-shaped grooves (104) are arranged along the axial direction of the cylinder (10). The convex pieces (103) are arranged in the strip-shaped grooves (104). The pressing part (12) is provided with first concave-convex textures.

9. The embossed structure according to any one of claims 1 to 4, wherein The rolling support surface is provided with second concave-convex textures. The first concave-convex textures and the second concave-convex textures are connected. The application relates to a cylinder (10) for pressing materials, and belongs to the technical field of pressing machines.

10. An embossing device, characterized by The outer circumferential surface of the cylinder (10) is provided with a rolling part (11) and a pressing part (12). The rolling part (11) is arranged along the circumferential direction of the cylinder (10) to form a rolling support surface. The pressing part (12) is used for pressing materials. The pressing part (12) is provided with a convex part. The radius of the rolling part (11) is greater than that of the convex part on the pressing part (12). The difference between the radius of the rolling part (11) and that of the convex part on the pressing part (12) is greater than or equal to 0.01 mm. The rolling part (11) is arranged at one end or both ends of the cylinder (10). The pressing part (12) comprises staggered concave stripes (101) and convex stripes (102). The concave stripes (101) and the convex stripes (102) are arranged along the axial direction of the cylinder (10). The pressing part (12) comprises a plurality of convex pieces (103). The convex pieces (103) are columnar or dome-shaped. The convex pieces (103) are arranged into convex point lines along the axial direction of the cylinder (10) at intervals. A plurality of the convex point lines are arranged in alignment or staggered. The pressing part (12) comprises a plurality of strip-shaped grooves (104). The strip-shaped grooves (104) are arranged along the axial direction of the cylinder (10). The convex pieces (103) are arranged in the strip-shaped grooves (104). The pressing part (12) is provided with first concave-convex textures. The rolling support surface is provided with second concave-convex textures. The first concave-convex textures and the second concave-convex textures are connected. The application relates to a cylinder (10) for pressing materials, and belongs to the technical field of pressing machines. The outer circumferential surface of the cylinder (10) is provided with a rolling part (11) and a pressing part (12). The rolling part (11) is arranged along the circumferential direction of the cylinder (10) to form a rolling support surface. The pressing part (12) is used for pressing materials. The pressing part (12) is provided with a convex part. The radius of the rolling part (11) is greater than that of the convex part on the pressing part (12). The difference between the radius of the rolling part (11) and that of the convex part on the pressing part (12) is greater than or equal to 0.01 mm. The rolling part (11) is arranged at one end or both ends of the cylinder (10). The pressing part (12) comprises staggered concave stripes (101) and convex stripes (102). The concave stripes (101) and the convex stripes (102) are arranged along the axial direction of the cylinder (10). The pressing part (12) comprises a plurality of convex pieces (103). The convex pieces (103) are columnar or dome-shaped. The convex pieces (103) are arranged into convex point lines along the axial direction of the cylinder (10) at intervals. A plurality of the convex point lines are arranged in alignment or staggered. The pressing part (12) comprises a plurality of strip-shaped grooves (104). The strip-shaped grooves (104) are arranged along the axial direction of the cylinder (10). The convex pieces (103) are arranged in the strip-shaped grooves (104). The pressing part (12) is provided with first concave-convex textures. The rolling support surface is provided with second concave-convex textures. The first concave-convex textures and the second concave-convex textures are connected. The application relates to a cylinder (10) for pressing materials, and belongs to the technical field of pressing machines. The outer circumferential surface of the cylinder (10) is provided with a rolling part (11) and a pressing part (12). The rolling part (11) is arranged along the circumferential direction of the cylinder (10) to form a rolling support surface. The pressing part (12) is used for pressing materials. The pressing part (12) is provided with a convex part. The radius of the rolling part (11) is greater than that of the convex part on the pressing part (12). The difference between the radius of the rolling part (11) and that of the convex part on the pressing part (12) is greater than or equal to 0.01 mm. The rolling part (11) is arranged at one end or both ends of the cylinder (10). The pressing part (12) comprises staggered concave stripes (101) and convex stripes (102). The concave stripes (101) and the convex stripes (102) are arranged along the axial direction of the cylinder (10). The pressing part (12) comprises a plurality of convex pieces (103). The convex pieces (103) are columnar or dome-shaped. The convex pieces (103) are arranged into convex point lines along the axial direction of the cylinder (10) at intervals. A plurality of the convex point lines are arranged in alignment or staggered. The pressing part (12) comprises a plurality of strip-shaped grooves (104). The strip-shaped grooves (104) are arranged along the axial direction of the cylinder (10). The convex pieces (103) are arranged in the strip-shaped grooves (104). The pressing part (12) is provided with first concave-convex textures. The rolling support surface is provided with second concave-convex textures. The first concave-convex textures and the second concave-convex textures are connected. The application relates to a cylinder (10) for pressing materials, and belongs to the technical field of pressing machines. The outer circumferential surface of the cylinder (10) is provided with a rolling part (11) and a pressing part (12). The rolling part (11) is arranged along the circumferential direction of the cylinder (10) to form a rolling support surface. The pressing part (12) is used for pressing materials. The pressing part (12) is provided with a convex part. The radius of the rolling part (11) is greater than that of the convex part on the pressing part (12). The difference between the radius of the rolling part (11) and that of the convex part on the pressing part (12) is greater than or equal to 0.01 mm. The rolling part (11) is arranged at one end or both ends of the cylinder (10). The pressing part (12) comprises staggered concave stripes (101) and convex stripes (102). The concave stripes (101) and the convex stripes (102) are arranged along the axial direction of the cylinder (10). The pressing part (12) comprises a plurality of convex pieces (103). The convex pieces (103) are columnar or dome-shaped. The convex pieces (103) are arranged into convex point lines along the axial direction of the cylinder (10) at intervals. A plurality of the convex point lines are arranged in alignment or staggered. The pressing part (12) comprises a plurality of strip-shaped grooves (104). The strip-shaped grooves (104) are arranged along the axial direction of the cylinder (10). The convex pieces (103) are arranged in the strip-shaped grooves (104). The pressing part (12) is provided with first concave-convex textures. The rolling support surface is provided with second concave-convex textures. The first concave-convex textures and the second concave-convex textures are connected. The application relates to a cylinder (10) for pressing materials, and belongs to the technical field of pressing machines.

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