阅读说明：本技术 一种辊压机构 (Rolling mechanism ) 是由 杨立华 于 2020-12-30 设计创作，主要内容包括：本发明的实施例提供了一种辊压机构,涉及极片生产技术领域。辊压机构包括第一压轮组件及第二压轮组件,第一压轮组件及第二压轮组件分别设置在极片的两侧,用于辊压极片,第一压轮组件包括多个第一压轮件,第二压轮组件包括多个第二压轮件,多个第一压轮件及多个第二压轮件交错设置。极片设置在第一压轮组件及第二压轮组件之间,当极片经过第一压轮组件及第二压轮组件时,第一压轮件及第二压轮件能够交替从极片的两侧反复对极片施加弯曲力,去除极片自身的拉应力,能够尽可能的减少极片自身打皱。同时,由于第一压轮件及第二压轮件分别从极片的两侧,使极片的两侧受力,能够减少极片在一侧受力时容易出现断裂的问题。(The embodiment of the invention provides a rolling mechanism, and relates to the technical field of pole piece production. The rolling mechanism comprises a first pressing wheel assembly and a second pressing wheel assembly, the first pressing wheel assembly and the second pressing wheel assembly are arranged on two sides of a pole piece respectively and used for rolling the pole piece, the first pressing wheel assembly comprises a plurality of first pressing wheel pieces, the second pressing wheel assembly comprises a plurality of second pressing wheel pieces, and the first pressing wheel pieces and the second pressing wheel pieces are arranged in a staggered mode. The pole piece sets up between first pinch roller subassembly and second pinch roller subassembly, and when the pole piece passed through first pinch roller subassembly and second pinch roller subassembly, first pinch roller spare and second pinch roller spare can be in turn from the both sides of pole piece repetition to exert the bending force to the pole piece, get rid of the tensile stress of pole piece self, can reduce pole piece self as far as and crumple. Meanwhile, the first pressure wheel piece and the second pressure wheel piece are respectively arranged on two sides of the pole piece, so that the two sides of the pole piece are stressed, and the problem that the pole piece is easy to break when stressed on one side can be solved.)

1. A rolling mechanism for rolling pole pieces, the rolling mechanism comprising: first pinch roller subassembly and second pinch roller subassembly, first pinch roller subassembly reaches second pinch roller subassembly sets up respectively the both sides of pole piece are used for the roll-in the pole piece, first pinch roller subassembly includes a plurality of first pinch roller spare, second pinch roller subassembly includes a plurality of second pinch roller spare, and is a plurality of first pinch roller spare and a plurality of second pinch roller spare is crisscross to be set up.

2. The rolling mechanism according to claim 1, wherein a plurality of the first pressing wheel members are arranged at intervals, and one second pressing wheel member is arranged between two adjacent first pressing wheel members.

3. The rolling mechanism according to claim 1, wherein a plurality of the second pressing wheel members are arranged at intervals, and one first pressing wheel member is arranged between two adjacent second pressing wheel members.

4. The roller pressing mechanism according to claim 1, wherein the first pressing wheel member and the second pressing wheel member are embedded into each other to a depth of 1mm to 5 mm.

5. The roller press mechanism according to claim 1, wherein the roller press mechanism has an inlet end and an outlet end, the pole piece enters between the first and second pinch roller assemblies from the inlet end and exits from the outlet end, and the inlet end is provided with heating elements for heating the pole piece.

6. The roll-in mechanism of claim 5, wherein the feed end is provided with an active drive for transporting the pole piece between the first and second pinch roller assemblies, and the discharge end is provided with an auxiliary drive for outputting the pole piece from between the first and second pinch roller assemblies.

7. The roller pressing mechanism according to claim 1, wherein the first pressing wheel assembly further comprises a first mounting plate, the first pressing wheel assembly comprises a first pressing wheel body, a first pressing wheel shaft and a first support, one end of the first support is connected with the first mounting plate, and the other end of the first support is connected with the first pressing wheel body through the first pressing wheel shaft.

8. The roller press mechanism of claim 7, wherein said first roller assembly further comprises a first driving member connected to said first mounting plate for driving said first roller member to move toward or away from said second roller assembly.

9. The roller pressing mechanism according to claim 1, wherein the second pressing wheel assembly further comprises a second mounting plate, the second pressing wheel assembly comprises a second pressing wheel body, a second pressing wheel shaft and a second support, one end of the second support is connected with the second mounting plate, and the other end of the second support is connected with the second pressing wheel body through the second pressing wheel shaft.

10. The roller press mechanism of claim 9, wherein the second roller assembly further comprises a second driving member connected to the second mounting plate for driving the second roller member to move toward or away from the first roller assembly.

Technical Field

The invention relates to the technical field of pole piece production, in particular to a rolling mechanism.

Background

When the pole piece is rolled, the pole piece is provided with a coating area and a foil area, and the coating area and the foil area have different tensions. Meanwhile, since most of the foils are cut into foils with the same width as the foil area, and then the foils are installed in the foil area, the foils are easily broken when increased tension is applied. Therefore, if the problem of wrinkling needs to be solved, the tension of the rolling mechanism on the whole pole piece needs to be increased, but the pole piece is easy to damage if the tension is too high.

Disclosure of Invention

The invention aims to provide a rolling mechanism which can solve the problem of wrinkling and reduce the frequency of broken strips of a pole piece.

Embodiments of the invention may be implemented as follows:

the embodiment of the invention provides a rolling mechanism for rolling pole pieces, which comprises: first pinch roller subassembly and second pinch roller subassembly, first pinch roller subassembly reaches second pinch roller subassembly sets up respectively the both sides of pole piece are used for the roll-in the pole piece, first pinch roller subassembly includes a plurality of first pinch roller spare, second pinch roller subassembly includes a plurality of second pinch roller spare, and is a plurality of first pinch roller spare and a plurality of second pinch roller spare is crisscross to be set up.

In an alternative embodiment of the invention, a plurality of the first pressure wheel elements are arranged at intervals, and one second pressure wheel element is arranged between two adjacent first pressure wheel elements.

In an alternative embodiment of the invention, a plurality of the second pressure wheel pieces are arranged at intervals, and one first pressure wheel piece is arranged between every two adjacent second pressure wheel pieces.

In an optional embodiment of the invention, the mutual embedding depth of the first pinch roller piece and the second pinch roller piece is 1 mm-5 mm.

In an optional embodiment of the present invention, the rolling mechanism has a feeding end and a discharging end, the pole piece enters between the first pinch roller assembly and the second pinch roller assembly from the feeding end, and is output from the discharging end, the feeding end is provided with a heating element, and the heating element is used for heating the pole piece.

In an optional embodiment of the present invention, an active driving element is disposed at the feeding end, the active driving element is configured to convey the pole piece between the first pinch roller assembly and the second pinch roller assembly, and an auxiliary driving element is disposed at the discharging end, and the auxiliary driving element is configured to output the pole piece between the first pinch roller assembly and the second pinch roller assembly.

In an optional embodiment of the present invention, the first pinch roller assembly further includes a first mounting plate, the first pinch roller assembly includes a first pinch roller body, a first pinch roller shaft, and a first support, one end of the first support is connected to the first mounting plate, and the other end of the first support is connected to the first pinch roller body through the first pinch roller shaft.

In an alternative embodiment of the present invention, the first pressure wheel assembly further includes a first driving member, and the first driving member is connected to the first mounting plate and is configured to drive the first pressure wheel member to move toward or away from the second pressure wheel assembly.

In an optional embodiment of the present invention, the second pressure wheel assembly further includes a second mounting plate, the second pressure wheel assembly includes a second pressure wheel body, a second pressure wheel shaft, and a second support, one end of the second support is connected to the second mounting plate, and the other end of the second support is connected to the second pressure wheel body through the second pressure wheel shaft.

In an alternative embodiment of the present invention, the second pressure wheel assembly further includes a second driving member, and the second driving member is connected to the second mounting plate and is configured to drive the second pressure wheel member to move toward or away from the first pressure wheel assembly.

The embodiment of the invention has the following beneficial effects: the rolling mechanism comprises a first pressing wheel assembly and a second pressing wheel assembly, the first pressing wheel assembly and the second pressing wheel assembly are arranged on two sides of a pole piece respectively and used for rolling the pole piece, the first pressing wheel assembly comprises a plurality of first pressing wheel pieces, the second pressing wheel assembly comprises a plurality of second pressing wheel pieces, and the first pressing wheel pieces and the second pressing wheel pieces are arranged in a staggered mode.

In the embodiment of the invention, the pole piece is arranged between the first pinch roller assembly and the second pinch roller assembly, the first pinch roller pieces and the second pinch roller pieces are arranged in a staggered manner, when the pole piece passes through the first pinch roller assembly and the second pinch roller assembly, the first pinch roller pieces and the second pinch roller pieces can alternately and repeatedly apply bending force to the pole piece from two sides of the pole piece, the tensile stress of the pole piece is removed, and the self-wrinkling of the pole piece can be reduced as much as possible. Meanwhile, the first pressure wheel piece and the second pressure wheel piece are respectively arranged on two sides of the pole piece, so that the two sides of the pole piece are stressed, and the problem that the pole piece is easy to break when stressed on one side can be solved. The roller pressing mechanism that this embodiment provided can reduce the frequency of pole piece broken tape when solving the problem of crumpling.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a rolling mechanism and a pole piece in cooperation according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a first pinch roller assembly of a rolling mechanism according to an embodiment of the present invention.

Figure 3 is a cross-sectional view of a first pinch roller member of a first pinch roller assembly of a stitching mechanism provided in accordance with an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a second pinch roller assembly of the rolling mechanism according to an embodiment of the present invention.

Figure 5 is a cross-sectional view of a second pinch roller member of a second pinch roller assembly of a stitching mechanism provided in accordance with an embodiment of the present invention.

Icon: 100-a rolling mechanism; 110-a first puck assembly; 112-a first pressure wheel member; 1121-first puck body; 1123-a first pinch roller shaft; 1125-a first support; 114-a first mounting plate; 116-a first drive member; 120-a second puck assembly; 122-a second pressure wheel member; 1221-a second puck body; 1223-a second pinch roller shaft; 1225-a second support; 124-a second mounting plate; 126-a second drive member; 130-a feed end; 140-a discharge end; 150-a heating element; 160-active drive; 170-auxiliary drive; 200-pole piece.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or a positional relationship based on that shown in the drawings or that the product of the present invention is used as it is, this is only for convenience of description and simplification of the description, and it does not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.

Examples

Referring to fig. 1, the present embodiment provides a rolling mechanism 100, and the rolling mechanism 100 provided in the present embodiment is mainly used for rolling a pole piece 200, and can reduce the frequency of breaking the pole piece 200 while solving the problem of wrinkling.

When the pole piece 200 is rolled, the pole piece 200 has a coating area and a foil area, and the coating area and the foil area have different tensions, so that when the pole piece 200 is rolled by the same force, the foil area has larger tensile stress, and the problem of wrinkling is easy to occur. Meanwhile, since most of the foils are cut into foils with the same width as the foil area, and then the foils are installed in the foil area, the foils are easily broken when increased tension is applied. It can be seen that if the problem of wrinkling needs to be solved, the tension of the entire pole piece 200 by the rolling mechanism 100 needs to be increased, but if the tension is too high, the pole piece 200 is easily damaged.

In the present embodiment, the rolling mechanism 100 includes: first pinch roller assembly 110 and second pinch roller assembly 120, first pinch roller assembly 110 and second pinch roller assembly 120 set up respectively in the both sides of pole piece 200 for roll-in pole piece 200, first pinch roller assembly 110 includes a plurality of first pinch roller spare 112, second pinch roller assembly 120 includes a plurality of second pinch roller spare 122, a plurality of first pinch roller spare 112 and a plurality of second pinch roller spare 122 staggered arrangement.

In this embodiment, the pole piece 200 is disposed between the first pressing wheel assembly 110 and the second pressing wheel assembly 120, the first pressing wheel members 112 and the second pressing wheel members 122 are disposed in a staggered manner, and when the pole piece 200 passes through the first pressing wheel assembly 110 and the second pressing wheel assembly 120, the first pressing wheel members 112 and the second pressing wheel members 122 can alternately apply bending force to the pole piece 200 from two sides of the pole piece 200, so as to remove the tensile stress of the pole piece 200, and reduce the self-wrinkling of the pole piece 200 as much as possible. Meanwhile, the first pressure wheel piece 112 and the second pressure wheel piece 122 are respectively arranged on two sides of the pole piece 200, so that the two sides of the pole piece 200 are stressed, and the problem that the pole piece 200 is easy to break when one side is stressed can be solved. The rolling mechanism 100 provided by the embodiment can reduce the frequency of strip breakage of the pole piece 200 while solving the problem of wrinkling.

In the present embodiment, a plurality of first pressure roller members 112 are arranged at intervals, and one second pressure roller member 122 is arranged between two adjacent first pressure roller members 112.

In the present embodiment, the plurality of first pressure roller members 112 are disposed at equal intervals, the second pressure roller member 122 is disposed between two adjacent first pressure roller members 112, and it can be considered that one second pressure roller member 122 is disposed between any two adjacent first pressure roller members 112.

In the present embodiment, a plurality of second pressure roller members 122 are disposed at intervals, and one first pressure roller member 112 is disposed between two adjacent second pressure roller members 122.

Similarly, the plurality of second pressure wheel members 122 are arranged at equal intervals, the first pressure wheel member 112 is arranged between two adjacent second pressure wheel members 122, and it can be considered that one first pressure wheel member 112 is arranged between any two adjacent second pressure wheel members 122.

It will be readily understood that a plurality of first pressure wheel members 112 and a plurality of second pressure wheel members 122 are arranged crosswise, that is, in order from left to right if the first is the first pressure wheel member 112, the second is the second pressure wheel member 122, in order, the third is the first pressure wheel member 112, the fourth is the second pressure wheel member 122, and so on. If the first is the second pressure wheel member 122, the second is the first pressure wheel member 112, the third is the second pressure wheel member 122, and the fourth is the first pressure wheel member 112. It is believed that any one of the first pressure wheel members 112 adjacent thereto is a second pressure wheel member 122. Similarly, adjacent to any one of the second pressure roller members 122 is the first pressure roller member 112.

In the present embodiment, the depth of the first pressing wheel 112 and the second pressing wheel 122 is 1mm to 5 mm.

In the present embodiment, the first pressure roller 112 and the second pressure roller 122 are respectively disposed on two sides of the pole piece 200, and the pole piece 200 is pressed from the two sides of the pole piece 200, so that the problem of wrinkling of the pole piece 200 is solved under the cooperation of the repeated bending forces of the first pressure roller 112 and the second pressure roller 122.

As for the first pressure roller members 112, one second pressure roller member 122 is disposed between two adjacent first pressure roller members 112, that is, the second pressure roller member 122 is disposed in the gap between two adjacent first pressure roller members 112. The depth of the gap between the second pressure roller 122 and the two adjacent first pressure roller 112 is the embedding depth. Similarly, for the second pressure roller members 122, one first pressure roller member 112 is disposed between two adjacent second pressure roller members 122, that is, the second pressure roller member 122 is disposed in the gap between two adjacent first pressure roller members 112. The depth of the gap between the first pressure wheel member 112 and the two adjacent second pressure wheel members 122 is the embedding depth.

The mutual embedding depth of the first pressure wheel piece 112 and the second pressure wheel piece 122 is 1mm to 5mm, which means that the gap depth of the first pressure wheel piece 112 extending into two adjacent second pressure wheel pieces 122 is 1mm to 5mm, and the gap depth of the second pressure wheel piece 122 extending into two adjacent first pressure wheel pieces 112 is 1mm to 5 mm.

In this embodiment, the rolling mechanism 100 has a feeding end 130 and a discharging end 140, the pole piece 200 enters between the first pinch roller assembly 110 and the second pinch roller assembly 120 from the feeding end 130, and is output from the discharging end 140 to the first pinch roller assembly 110 and the second pinch roller assembly 120, the feeding end 130 is provided with a heating element 150, and the heating element 150 is used for heating the pole piece 200.

In this embodiment, heating element 150 is disposed at feed end 130, and before pole piece 200 enters between first pinch roller assembly 110 and second pinch roller assembly 120, pole piece 200 is heated, and after the heating, a portion of tensile stress of pole piece 200 itself is removed, and after entering between first pinch roller assembly 110 and second pinch roller assembly 120, tensile stress of itself is further reduced under the cooperation of repeated bending force applied by first pinch roller assembly 110 and second pinch roller assembly 120.

Heating element 150 heats the two sides of pole piece 200, typically to 60-160 ℃.

In this embodiment, the feeding end 130 is provided with an active driving member 160, the active driving member 160 is used for conveying the pole piece 200 between the first pinch roller assembly 110 and the second pinch roller assembly 120, the discharging end 140 is provided with an auxiliary driving member 170, and the auxiliary driving member 170 is used for outputting the pole piece 200 between the first pinch roller assembly 110 and the second pinch roller assembly 120.

In the present embodiment, the active driving element 160 is mainly used for conveying the pole piece 200 between the first pressure wheel assembly 110 and the second pressure wheel assembly 120, and can move between the first pressure wheel assembly 110 and the second pressure wheel assembly 120, so that the plurality of first pressure wheel elements 112 and the plurality of second pressure wheel elements 122 alternately apply pressure to the pole piece 200. The auxiliary driving member 170 disposed at the discharge end 140 is mainly used to overcome the frictional resistance when the pole piece 200 passes through the first pinch roller assembly 110 and the second pinch roller assembly 120, so that the pole piece 200 can be smoothly output from the first pinch roller assembly 110 and the second pinch roller assembly 120.

Referring to fig. 2 and 3, in the present embodiment, the first pressure wheel assembly 110 further includes a first mounting plate 114, the first pressure wheel piece 112 includes a first pressure wheel body 1121, a first pressure wheel shaft 1123, and a first support 1125, one end of the first support 1125 is connected to the first mounting plate 114, and the other end of the first support 1125 is connected to the first pressure wheel body 1121 through the first pressure wheel shaft 1123.

In this embodiment, the plurality of first pressure wheel members 112 are mounted on the first mounting plate 114 at intervals, the first supports 1125 of the plurality of first pressure wheel members 112 are mounted on the first mounting plate 114 at equal intervals, and the first pressure wheel shaft 1123 is connected to the first pressure wheel body 1121 and the first supports 1125, so that the first pressure wheel body 1121 can rotate relative to the first supports 1125. First pinch roller body 1121 applies pressure to pole piece 200 from one side of pole piece 200, and when pole piece 200 moves between first pinch roller assembly 110 and second pinch roller assembly 120, first pinch roller originally rotates along with pole piece 200 under the effect of friction force, so that pole piece 200 moves forward.

In this embodiment, the first pressure wheel assembly 110 further includes a first driving member 116, and the first driving member 116 is connected to the first mounting plate 114 for driving the first pressure wheel 112 to move toward or away from the second pressure wheel assembly 120.

In this embodiment, the first driving member 116 drives the first pressing wheel 112 to move toward or away from the second pressing wheel assembly 120, so as to adjust the insertion depth between the first pressing wheel 112 and the second pressing wheel 122.

Referring to fig. 4 and 5, in the present embodiment, the second pressure wheel assembly 120 further includes a second mounting plate 124, the second pressure wheel 122 includes a second pressure wheel body 1221, a second pressure wheel shaft 1223, and a second support 1225, one end of the second support 1225 is connected to the second mounting plate 124, and the other end of the second support 1225 is connected to the second pressure wheel body 1221 through the second pressure wheel shaft 1223.

In this embodiment, the plurality of second pressure roller members 122 are mounted on the second mounting plate 124 at intervals, the second supports 1225 of the plurality of second pressure roller members 122 are mounted on the second mounting plate 124 at equal intervals, and the second pressure roller shaft 1223 is connected to the second pressure roller body 1221 and the second supports 1225, so that the second pressure roller body 1221 can rotate relative to the second supports 1225. Second pinch roller body 1221 exerts pressure on pole piece 200 from one side of pole piece 200, and when pole piece 200 moved between first pinch roller assembly 110 and second pinch roller assembly 120, the second pinch roller originally followed pole piece 200 and rotated under the effect of frictional force to make pole piece 200 move forward.

In this embodiment, the second pressure wheel assembly 120 further includes a second driving member 126, and the second driving member 126 is connected to the second mounting plate 124 for driving the second pressure wheel 122 to move toward or away from the first pressure wheel assembly 110.

In this embodiment, the second driving member 126 drives the second pressing wheel 122 to move closer to or away from the first pressing wheel assembly 110, so as to adjust the insertion depth between the second pressing wheel 122 and the first pressing wheel 112.

In summary, in the rolling mechanism 100 provided in this embodiment, the pole piece 200 is disposed between the first pressing wheel assembly 110 and the second pressing wheel assembly 120, and the plurality of first pressing wheel members 112 and the plurality of second pressing wheel members 122 are disposed in a staggered manner, so that when the pole piece 200 passes through the first pressing wheel assembly 110 and the second pressing wheel assembly 120, the first pressing wheel members 112 and the second pressing wheel members 122 can alternately apply a bending force to the pole piece 200 from two sides of the pole piece 200, so as to remove the tensile stress of the pole piece 200, and reduce the wrinkles of the pole piece 200 as much as possible. Meanwhile, the first pressure wheel piece 112 and the second pressure wheel piece 122 are respectively arranged on two sides of the pole piece 200, so that the two sides of the pole piece 200 are stressed, and the problem that the pole piece 200 is easy to break when one side is stressed can be solved. The rolling mechanism 100 provided by the embodiment can reduce the frequency of strip breakage of the pole piece 200 while solving the problem of wrinkling.

The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.