Casing film standard part for increasing supporting force of foil blank position on back roller and double-sided coating back roller

Abstract

The utility model relates to a sleeve film standard component for increasing the supporting force of the blank position of a foil on a back roller and a double-sided coating back roller, which comprises a standard component sleeve film, and the standard component sleeve film comprises a first sleeve film component and a second sleeve film component which divide the integral standard component sleeve film into two parts, the first sleeve membrane assembly and the second sleeve membrane assembly are both of a semicircular structure. The standard part sleeve film is connected with the second sleeve film assembly provided with the connecting wedge head in the mode that the first sleeve film assembly provided with the connecting open groove is tightly attached to the second sleeve film assembly provided with the connecting wedge head. The device has the advantages of being reasonable in structure, convenient and simple to operate, low in cost and good in using effect.

Description

Technical Field

[0001] The utility model belongs to the technical field of folding coating equipment, and particularly relates to a sleeve standard part for increasing the supporting force of a blank position of a foil material on a back roller and a double-sided coating back roller. Background Art

[0002] In the existing fold-back coating method, the ceramic coating thickness in the middle of the banner and the blank positions of the two tabs after single-sided coating is the same as the slurry coating thickness when passing through the double-sided coating backing roller, and the two are well blended. However, the ceramic coating thickness is too thick, and it is very easy to fall off when dried in the oven, affecting the quality of the electrode and also causing a certain degree of safety risk to the electrical performance of the battery. At present, high-temperature glue is mainly used to stick on the blank positions of the tabs to control the thickness of the ceramic coating. However, after a certain period of use, the high-temperature glue is severely worn and needs to be regularly observed and replaced in real time. At the same time, when replacing, each operator has different techniques and experience, resulting in different effects after gluing, thereby affecting the overall double-sided coating quality. Therefore, it is very necessary to provide a standard film part and a double-sided coating backing roller that increase the support force of the blank position of the foil on the backing roller with a reasonable structure, simple and convenient operation, low cost and good use effect. Summary of the Invention

[0003] The purpose of the utility model is to overcome the shortcomings of the existing technology and provide a standard film part and a double-sided coating backing roller that increase the support force of the blank position of the foil on the backing roller with reasonable structure, simple and convenient operation, low cost and good use effect.

[0004] The purpose of the utility model is achieved by providing a standard film sleeve component for increasing the support force of the blank area of a foil material on a backing roller, comprising a standard film sleeve component, the standard film sleeve comprising a first film sleeve component and a second film sleeve component that divide the standard film sleeve into two parts, the first film sleeve component and the second film sleeve component both having a semicircular structure. The standard film sleeve component is tightly connected by the first film sleeve component having a connecting groove and the second film sleeve component having a connecting wedge.

[0005] Wedge heads are provided on the outside of the left and right sides of the second membrane assembly, and slots for accommodating the wedge heads are provided on the inside of the left and right sides of the first membrane assembly.

[0006] The slots and wedge heads are both polygonal structures that fit together.

[0007] The slots and wedge heads are both pentagonal structures.

[0008] The standard part cover film is made of high molecular polymer.

[0009] The thickness of the standard cover film is calculated as follows: thickness after single-sided coating and drying - foil thickness - 15 μm.

[0010] A double-sided coating back roller comprises a coating back roller, wherein the standard part film is sleeved on the coating back roller; a ceramic coating area is provided on the upper side of the coating back roller, a coating dressing area is provided outside the ceramic coating area, and a blank area for coating the tab is provided outside the coating dressing area; a coating die head is provided on the lower side of the coating back roller.

[0011] The inner radius of the standard cover film is equal to or slightly larger than the radius of the coating back roller, so that the coating back roller can be fixed by friction when the standard cover film is covered on the coating back roller.

[0012] The width of the blank area of the coated tab specifically refers to the linear gap between the edges of the dressing areas on the left and right sides of the foil.

[0013] The beneficial effects of the present invention are as follows: the present invention is a standard film part and a double-sided coating back roller for increasing the support force of the blank position of the foil on the back roller, which is suitable for the standard film part on the double-sided coating back roller of the folding coating equipment with a folding coating method. In use, the present invention mainly aims at the difficulty of manually pasting high-temperature glue and the large difference in the use effect after pasting high-temperature glue, and improves this defect. The present invention adds a standard film part to the double-sided coating back roller of the folding coating equipment, so that the ceramic coating is within the thickness range desired by the process and the operation is convenient and simple; the present invention adopts a standard film part made of high molecular polymer material, which will not cause pollution to the electrode; the standard film part of the present invention adopts two semicircular films that are tightly connected and its thickness is limited. The structure is simple, but it can achieve the desired effect of the electrode manufacturing process, and the cost is low; the present invention has the advantages of reasonable structure, convenient and simple operation, low cost and good use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the double-sided coating backing roller structure of the utility model.

[0015] Figure 2 This is a structural diagram of the standard piece membrane composition of this utility model.

[0016] In the figure: 1, ceramic coating area 2, coating dressing area 3, coating tab blank area 4, standard part film 41, first film assembly 411, slot 42, second film assembly 421, wedge head 5, coating back roller 6, coating die head. DETAILED DESCRIPTION

[0017] The present invention will be further described below with reference to the accompanying drawings. Example 1

[0018] like Figure 1-2 As shown, a standard film sleeve component for increasing the support strength of the blank area of foil on a backing roller includes a standard film sleeve 4. The standard film sleeve 4 is divided into a first film sleeve component 41 and a second film sleeve component 42, each of which has a semicircular structure. The standard film sleeve 4 is tightly connected by the first film sleeve component 41 having a connecting groove and the second film sleeve component 42 having a connecting wedge.

[0019] Wedge heads 421 are provided on the outside of both left and right sides of the second membrane assembly 42 , and slots 411 for accommodating the wedge heads 421 are provided on the inside of both left and right sides of the first membrane assembly 41 .

[0020] The slot 411 and the wedge head 421 are both polygonal structures that fit together.

[0021] The slot 411 and the wedge head 421 are both pentagonal structures.

[0022] The standard part film 4 is made of high molecular polymer to avoid inappropriate material selection affecting the quality of the electrode.

[0023] The thickness of the standard cover film 4 is calculated as follows: thickness after single-sided coating and drying - foil thickness - 15 μm.

[0024] In this embodiment, the utility model mainly adds a standard part film to the existing double-sided coating back roller of the folding coating equipment. The specifications of the standard part film are: its circumference can refer to the circumference of the coating back roller of the coating machine (its calculation formula is: circumference = 2πr); the width of the standard part film is based on the width of the blank area of the coated tab in the middle of the coating process. In fact, the width of the blank area of the tabs on both sides of the coating banner can be reduced, but in order to standardize the specifications of the standard part film, the increase in the width of the blank area of the tabs on both sides of the coating banner will not affect the ceramic coating effect, so the width of the blank area of the coated tab in the middle after single-sided coating is referenced (Note: the width of the blank area of the tab in the middle of the banner after single-sided coating specifically refers to the straight line gap between the edges of the dressing area on the left and right sides of the foil).

[0025] The present invention relates to a standard film part and a double-sided coating back roller for increasing the supporting force of the blank position of the foil on the back roller, which is suitable for the standard film part on the double-sided coating back roller of the return coating equipment with a return coating method. During use, the present invention mainly aims at the difficulty of manually pasting high-temperature glue and the large difference in the use effect after pasting the high-temperature glue, and improves this defect. The present invention adds a standard film part 4 to the double-sided coating back roller of the return coating equipment, so that the ceramic coating is within the thickness range desired by the process and the operation is convenient and simple; the present invention adopts a standard film part 4 made of a high molecular polymer material, which will not cause pollution to the electrode; the standard film part 4 of the present invention adopts two semicircular films that are tightly fitted to be connected, and its thickness is limited. The structure is simple, but it can achieve the desired effect of the electrode manufacturing process, and the cost is low; the present invention has the advantages of reasonable structure, convenient and simple operation, low cost and good use effect. Example 2

[0026] like Figure 1-2 As shown, a double-sided coating back roller includes a coating back roller 5, and the standard film sleeve 4 is arranged on the coating back roller 5; a ceramic coating area 1 is provided on the upper side of the coating back roller 5, a coating dressing area 2 is provided on the outside of the ceramic coating area 1, and a coating tab blank area 3 is provided on the outside of the coating dressing area 2; a coating die head 6 is provided on the lower side of the coating back roller 5.

[0027] The inner radius of the standard cover film 4 is equal to or slightly larger than the radius of the coating back roller 5, so that the coating back roller 5 can be fixed by friction when the standard cover film 4 is covered on the coating back roller 5.

[0028] The width of the blank area 3 for coating the tab specifically refers to the linear gap between the edges of the dressing areas on the left and right sides of the foil.

[0029] In this embodiment, the use and production method of the standard cover film is to cover the film on the original double-sided coating backing roller. Its specific structure is that an integral standard cover film is divided into two parts, namely two semicircles, which are covered on the coating backing roller to form a whole and can be connected with a tight fit standard (Note: In order to ensure that the two semicircles can fit tightly, when making the assembly of the two semicircles, it is necessary to achieve precision in size. At the same time, one of the semicircular structures has a wedge head, and the other semicircular structure has a groove to accommodate the wedge head. When putting it on the coating backing roller, the two pentagonal wedge heads are stacked and placed in the two pentagonal grooves). In addition, it is necessary to ensure that the standard cover film and the coating backing roller are also tightly fitted, that is, the inner circle radius of the standard cover film is equal to or slightly larger than the radius of the coating backing roller, so that when the standard cover film is put on, it can be fixed by friction;

[0030] Instructions for use of standard parts film. The specifications of the standard parts film are formulated according to the coating process of 60130-46.5Ah cylindrical iron lithium battery. At the same time, the position of the film on the coating back roller can be adjusted appropriately. When the battery model changes, the specifications of the standard parts film can be re-formulated according to the actual situation of the coating process. The main factors affecting its specifications are the surface density of the coating slurry on the electrode required by the process and the blank size of the ear.

[0031] The present invention relates to a standard film part and a double-sided coating back roller for increasing the supporting force of the blank position of the foil on the back roller, which is suitable for the standard film part on the double-sided coating back roller of the return coating equipment with a return coating method. During use, the present invention mainly aims at the difficulty of manually pasting high-temperature glue and the large difference in the use effect after pasting the high-temperature glue, and improves this defect. The present invention adds a standard film part 4 to the double-sided coating back roller of the return coating equipment, so that the ceramic coating is within the thickness range desired by the process and the operation is convenient and simple; the present invention adopts a standard film part 4 made of a high molecular polymer material, which will not cause pollution to the electrode; the standard film part 4 of the present invention adopts two semicircular films that are tightly fitted to be connected, and its thickness is limited. The structure is simple, but it can achieve the desired effect of the electrode manufacturing process, and the cost is low; the present invention has the advantages of reasonable structure, convenient and simple operation, low cost and good use effect.

Claims

1. A standard cover part for increasing the support force of the blank area of the foil on the backing roller, characterized by: It includes a standard part film, which includes a first film assembly and a second film assembly that divide an integral standard part film into two parts. The first film assembly and the second film assembly are both semicircular structures; the standard part film is tightly connected by the first film assembly provided with a connecting groove and the second film assembly provided with a connecting wedge.

2. The standard sleeve component for increasing the support force of the blank area of the foil on the backing roller according to claim 1, characterized in that: Wedge heads are provided on the outside of the left and right sides of the second membrane assembly, and slots for accommodating the wedge heads are provided on the inside of the left and right sides of the first membrane assembly.

3. The standard sleeve component for increasing the support force of the blank area of the foil on the backing roller according to claim 2, characterized in that: The slots and wedge heads are both polygonal structures that fit together.

4. The standard sleeve component for increasing the support force of the blank area of the foil on the backing roller according to claim 3, characterized in that: The slots and wedge heads are both pentagonal structures.

5. The standard sleeve component for increasing the support force of the blank area of the foil on the backing roller according to claim 2, characterized in that: The standard part cover film is made of high molecular polymer.

6. The standard cover component for increasing the support force of the blank area of the foil on the backing roller according to claim 5, characterized in that: The thickness of the standard cover film is calculated as follows: thickness after single-sided coating and drying - foil thickness - 15 μm.

7. A double-sided coating backing roller, comprising the standard cover element for increasing the support force of the blank area of the foil on the backing roller according to any one of claims 1 to 6, characterized in that: It also includes a coating back roller, on which the standard part film is sleeved; a ceramic coating area is provided on the upper side of the coating back roller, a coating dressing area is provided outside the ceramic coating area, and a blank area for coating the tab is provided outside the coating dressing area; a coating die head is provided on the lower side of the coating back roller.

8. The double-sided coating backing roller according to claim 7, characterized in that: The inner radius of the standard cover film is equal to or slightly larger than the radius of the coating back roller, so that the coating back roller can be fixed by friction when the standard cover film is covered on the coating back roller.

9. The double-sided coating backing roller according to claim 7, characterized in that: The width of the blank area of the coated tab specifically refers to the linear gap between the edges of the dressing areas on the left and right sides of the foil.

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