CN219859922U - Winding core, winding roller and device for film production - Google Patents
Winding core, winding roller and device for film production Download PDFInfo
- Publication number
- CN219859922U CN219859922U CN202320976007.1U CN202320976007U CN219859922U CN 219859922 U CN219859922 U CN 219859922U CN 202320976007 U CN202320976007 U CN 202320976007U CN 219859922 U CN219859922 U CN 219859922U
- Authority
- CN
- China
- Prior art keywords
- film
- core body
- winding
- conductive film
- winding core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004804 winding Methods 0.000 title claims abstract description 114
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 238000005096 rolling process Methods 0.000 claims abstract description 9
- 230000008602 contraction Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 7
- 230000009471 action Effects 0.000 abstract description 5
- 239000002184 metal Substances 0.000 description 10
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Abstract
The utility model discloses a winding core, a winding roller and a device for film production, which comprise a cylindrical winding core body, wherein the winding core body is used for winding a film, the length of the winding core body is smaller than the width of the film, and the edges of two sides of the film exceed the winding core body, so that the edges of two sides of the film can radially shrink. According to the utility model, the winding core body with the length smaller than the width of the conductive film is arranged, when the conductive film is wound on the winding core body, the edges at two sides of the conductive film radially shrink under the action of self tension, and the middle part of the conductive film is smoothly wound under the support of the winding core body, so that the middle part of the conductive film is smoothly wound, the edge warping condition at two sides of the conductive film is improved, the winding quality of the conductive film is improved, and the bad loss is reduced; through set up the extension cover at the both ends of rolling up the core body, form the protection to the conductive film roll up the terminal surface, avoid follow-up cutting in-process, the fixture of cutting equipment causes the damage to the conductive film roll up when tight core body is rolled up in the top.
Description
Technical Field
The utility model relates to the technical field of conductive film production, in particular to a winding core, a winding roller and a device for film production.
Background
The conductive metal film is a material with various good performances, and is widely applied to a battery as a positive electrode current collector or a negative electrode current collector.
Winding the conductive metal film into a roll after the production of the conductive metal film is completed, and then performing subsequent cutting and other working procedures, wherein the edge of the conductive metal film often has a local bulge phenomenon in the winding and rolling process, and the phenomenon is also called edge lifting; the raised edges can influence the flatness and quality consistency of the whole guiding metal film, and particularly the raised edges with larger heights can influence the product performance of the conductive metal film.
The main countermeasure in the industry at present is to measure the edge-curling area, if the edge-curling value exceeds the requirement, the cut part of the conductive metal film is discarded as an unqualified product, which undoubtedly causes waste, and the production cost is increased, so that how to effectively solve the problem of edge-curling of the conductive metal film is a difficult problem to be solved in the industry.
Disclosure of Invention
In order to solve the problem that edge curling phenomenon often occurs at the edge in the winding process of the conductive metal film, the edge curling phenomenon can affect the flatness and quality consistency of the whole conductive metal film and the problem that cutting edge curling causes great waste, the utility model provides a winding core, a winding roller and a device for film production.
The technical scheme of the utility model is as follows:
the utility model provides a film production is with rolling up core, includes the roll core body of tube-shape, it is used for winding the film to roll up the core body, roll up the length of core body and be less than the width of film, film both sides edge all surpasses roll up the core body, make film both sides edge can radial contraction.
According to the roll core for film production, the length of the roll core body beyond the edges of the two sides of the film is equal.
According to the roll core for film production, the two ends of the roll core body are detachably connected with the extension sleeves.
According to the winding core for film production, the length of the edges of the two sides of the film exceeding the winding core body is 2D, and the length of D is 2-15 mm.
Further, the length of the extension sleeve is greater than D.
Further, the length of the extension sleeve is 2D.
Further, the inner diameter of the extension sleeve is not smaller than the inner diameter of the winding core body, and the outer diameter of the extension sleeve is not larger than the outer diameter of the winding core.
Further, the difference between the outer diameter of the winding core and the outer diameter of the extension sleeve is not less than 2mm.
The roll core for producing the film is characterized in that the length of the roll core body is 300-2000 mm.
The roll core for film production is characterized in that the roll core body is made of a nonmetallic material.
A roll for film production, which is used for winding a film by using the roll core for film production.
The device for producing the film is applied to the winding core for producing the film or the winding roller for producing the film.
The utility model according to the scheme has the beneficial effects that:
1. according to the utility model, the winding core body with the length smaller than the width of the conductive film is arranged, when the conductive film is wound on the winding core body, the edges at two sides of the conductive film radially shrink under the action of self tension, and the middle part of the conductive film is smoothly wound under the support of the winding core body, so that the middle part of the conductive film is smoothly wound, the edge warping condition at two sides of the conductive film is improved, the winding quality of the conductive film is improved, and the bad loss is reduced;
2. according to the utility model, the extension sleeves are arranged at the two ends of the winding core body to protect the end face of the conductive film winding, so that the damage to the conductive film winding caused by the clamping mechanism of the cutting equipment when the winding core body is propped up in the subsequent cutting process is avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the structure of the present utility model when wound;
FIG. 2 is a schematic view of the structure of the present utility model when cut;
FIG. 3 is a schematic view of the structure of the winding core body of the present utility model assembled with the extension;
FIG. 4 is an enlarged view of the structure of FIG. 3 at A;
fig. 5 is an enlarged view of the structure at B in fig. 3.
Wherein, each reference sign in the figure: 1. a winding core body; 101. inserting a female connector; 2. an extension sleeve; 201. inserting a male connector; 3. a film; 4. a first magnetic attraction member; 5. and the second magnetic attraction piece.
Description of the embodiments
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
It will be understood that when an element is referred to as being "mounted" or "disposed" or "connected" to another element, it can be directly or indirectly on the other element. The directions or positions indicated by the terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are directions or positions based on the drawings, and are merely for convenience of description and are not to be construed as limiting the present technical solution. The terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "multiple" is two or more, unless explicitly defined otherwise. The meaning of "a number" is one or more than one, unless specifically defined otherwise.
Examples
As shown in fig. 1, a winding core for producing a film according to an embodiment of the present utility model includes a cylindrical winding core body 1, the winding core body 1 is used for winding a film 3, the length of the winding core body 1 is smaller than the width of the film 3, and edges of two sides of the film 3 extend beyond the winding core body 1, so that edges of two sides of the film 3 can be radially contracted.
When the conductive film winding device is used, the winding core body 1 is sleeved and arranged on the winding roller, the winding roller rotates to drive the winding core body 1 to synchronously rotate, the winding core body 1 rotates to wind the conductive film 3 onto the winding core body 1, the outer diameters of all sections of the winding core body 1 are the same, the conductive film 3 wound onto the winding core body 1 is smooth, the conductive film wound onto the winding core body 1 is smooth, the length of the winding core body 1 is smaller than the width of the conductive film 3, both side edges of the conductive film 3 exceed the winding core body 1, the both side edges of the conductive film 3 are suspended, and under the action of the tension of the conductive film 3, the radial shrinkage trend of the both side edges of the conductive film 3 is formed during winding, so that the edge warping of both side edges of the conductive film 3 is overcome or lightened, the whole flatness and quality of the conductive film 3 are improved, and the winding quality of the conductive film 3 is ensured.
In this embodiment, through setting up the book core body 1 that length is less than conductive film 3 width, when winding conductive film 3 to book core body 1, conductive film 3 both sides edge radially contracts under the effect of self tension, and conductive film 3 mid portion is level winding under the support of book core body 1 to can guarantee middle part level winding, improve conductive film 3 both sides edge and stick up the condition of limit simultaneously, improve conductive film 3's lapping quality, reduce the bad loss.
When the utility model is practically applied, the length of the winding core body 1 is generally 300mm to 2000mm, the length of the winding core body 1 can be any value in the intervals of 300mm, 500mm, 1000mm, 1050mm, 1075mm, 1100mm, 1500mm, 2000mm and the like, and the winding core body can correspondingly wind the conductive film 3 with the width of 300mm to 2000mm, and the conductive film 3 with the width has wide application scene and high processing efficiency. The winding core body 1 is made of non-metal materials such as paper, resin, plastic and the like, and has light weight, high structural strength and convenient manufacture and use.
As shown in fig. 1, in a preferred embodiment, the lengths of the winding core body 1 beyond the edges of the two sides of the film 3 are equivalent, so that the suspended lengths of the edges of the two sides of the conductive film 3 are equivalent, the radial contracted lengths of the edges of the two sides are similar, the stress of the edges of the two sides of the conductive film 3 is balanced, and the winding quality is further improved. The length of the two side edges of the film 3 exceeding the winding core body 1 is 2D, the length of D is 2mm to 15mm, and the length of D is generally any value in the interval of 2mm, 3mm, 5mm, 8mm, 10mm, 15mm and the like. On one hand, the length of the conductive film 3 exceeding the winding core body 1 is prevented from being too small, the radial shrinkage length of the edges of the two sides of the conductive film 3 is smaller, and the improvement of the edge warping phenomenon is ineffective or poor; on the other hand, the length of the conductive film 3 exceeding the winding core body 1 is prevented from being too large, so that the radial shrinkage length of the edges on two sides of the conductive film 3 is too large, the radial shrinkage of the edges on two sides of the conductive film 3 is easy to cause, the flatness is influenced, and the loss is increased. The length of the conductive film 3 exceeding the winding core body 1 is controlled, so that the length of the conductive film 3 exceeding the winding core body 1 is in a proper range, the contraction length of the edges of the two sides of the conductive film 3 is ensured to be in a proper range, and the winding quality of the conductive film 3 is ensured.
As shown in fig. 2, in a preferred example, the winding core body 1 is provided with extension sleeves 2 at both ends, and the length of the extension sleeves 2 is greater than D. Preferably, the length of the extension sleeve 2 is 2D. Through set up extension cover 2 at the both ends of rolling up core body 1, form the protection to conductive film roll up the terminal surface, avoid follow-up cutting in-process, cutting equipment's fixture causes the damage to conductive film roll up when tight roll up core body 1 in the top. The inner diameter of the extension sleeve 2 is not smaller than the inner diameter of the winding core body 1, the outer diameter of the extension sleeve 2 is not larger than the outer diameter of the winding core, and the difference between the outer diameter of the winding core and the outer diameter of the extension sleeve 2 is not smaller than 2mm. The extension sleeve 2 is inserted into the two ends of the conductive film roll for convenience in the setting process, so that the operation is convenient.
As shown in fig. 3 to 5, in a preferred embodiment, the winding core body 1 is connected to the extension sleeve 2 in a plug-in manner, the first end of the extension sleeve 2 is provided with a plug-in male connector 201, and the winding core body 1 is provided with a plug-in female connector 101 engaged with the plug-in male connector 201 at one end of the extension sleeve 2. The male plug 201 is provided with a first magnetic attraction piece 4, the female plug 101 is provided with a second magnetic attraction piece 5 which is in magnetic attraction connection with the first magnetic attraction piece 4, and the first magnetic attraction piece 4 is opposite to the second magnetic attraction piece 5 in terms of different-name magnetic poles. When the winding core body 1 and the extension sleeve 2 are connected, the plug male connector 201 is inserted into the plug female connector 101, and at the moment, the first magnetic attraction piece 4 and the second magnetic attraction piece 5 are magnetically attracted, so that the winding core body 1 and the extension sleeve 2 are connected. When the plug male connector 201 is separated, the plug female connector 101 is pulled out, the first magnetic attraction piece 4 and the second magnetic attraction piece 5 are separated, and the winding core body 1 and the extension sleeve 2 are disconnected. Therefore, the extension sleeve 2 and the winding core body 1 are convenient to assemble and disassemble, and the two parts are convenient to replace, so that the winding machine can adapt to winding of conductive films with different widths and different types.
In practical application, the winding core body 1 and the extension sleeve 2 can be connected by adopting screw threads besides the connection mode, for example, the connection ends of the winding core body 1 and the extension sleeve 2 are respectively provided with internal screw threads and external screw threads which are matched with each other, so that the winding core body 1 and the extension sleeve 2 are connected. Or by fastening means, such as screws, for connecting the winding core body 1 and the extension sleeve 2. The winding core body 1 is detachably connected to the extension sleeve 2, including but not limited to the connection modes listed above, which are not listed here.
Examples
A roll for producing a film 3 according to an example of the present utility model employs a roll core for producing a film 3 as described above for winding a film. By adopting the winding core body 1 with the length smaller than the width of the conductive film 3, the edges at the two sides of the conductive film 3 radially shrink under the action of self tension, the edge warping condition of the edges at the two sides of the conductive film 3 is improved, the winding quality of the conductive film 3 is improved, and the bad loss is reduced. Through set up extension cover 2 at the both ends of rolling up core body 1, form the protection to the conductive film roll up the terminal surface, avoid follow-up cutting in-process, cutting equipment's fixture causes the damage to conductive film roll up when tightly rolling up core body 1, in actual production, if this extension cover 2 does not have, fixture is the physiosis axle, can tightly prop up in rolling up core body 1 department, collide with easily, crush film roll up the edge, through setting up extension cover 2 protection film roll up the edge, avoided this kind of condition to take place.
Examples
An apparatus for producing a film 3 according to an example of the present utility model employs the above-described one of a winding core for producing a film 3 or the above-described one of a winding roller for producing a film 3 for winding a film. By adopting the winding core body 1 with the length smaller than the width of the conductive film 3, the edges at the two sides of the conductive film 3 radially shrink under the action of self tension, the edge warping condition of the edges at the two sides of the conductive film 3 is improved, the winding quality of the conductive film 3 is improved, and the bad loss is reduced. Through set up extension cover 2 at the both ends of rolling up core body 1, form the protection to conductive film roll up the terminal surface, avoid follow-up cutting in-process, cutting equipment's fixture causes the damage to conductive film roll up when tight roll up core body 1 in the top.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (10)
1. The utility model provides a film production is with rolling up core, its characterized in that includes the roll core body of tube-shape, it is used for winding the film to roll up the core body, roll up the length of core body and be less than the width of film, film both sides edge all surpasses roll up the core body, make film both sides edge can radial contraction.
2. A winding core for producing a film according to claim 1, wherein the winding core body is detachably connected with extension sleeves at both ends.
3. A roll core for producing a film according to claim 2, wherein the edges of both sides of the film are 2d and the length of d is 2mm to 15mm.
4. A film-producing winding core according to claim 3, wherein the length of the extension sleeve is greater than D.
5. A film forming core as recited in claim 4, wherein said extension sleeve has a length of 2D.
6. A winding core for producing a film according to claim 2, wherein the inner diameter of the extension sleeve is not smaller than the inner diameter of the winding core body, and the outer diameter of the extension sleeve is not larger than the outer diameter of the winding core.
7. A core for producing a film according to claim 1, wherein the length of the core body is 300mm to 2000mm.
8. A winding core for producing a film according to claim 1, wherein the winding core body is made of a nonmetallic material.
9. A roll for producing a film, characterized in that a roll core for producing a film according to any one of claims 1 to 8 is applied for winding a film.
10. An apparatus for producing a film, characterized in that a winding core for producing a film according to any one of claims 1 to 8 or a winding roller for producing a film according to claim 9 is applied for winding a film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320976007.1U CN219859922U (en) | 2023-04-26 | 2023-04-26 | Winding core, winding roller and device for film production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320976007.1U CN219859922U (en) | 2023-04-26 | 2023-04-26 | Winding core, winding roller and device for film production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219859922U true CN219859922U (en) | 2023-10-20 |
Family
ID=88343777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320976007.1U Active CN219859922U (en) | 2023-04-26 | 2023-04-26 | Winding core, winding roller and device for film production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219859922U (en) |
-
2023
- 2023-04-26 CN CN202320976007.1U patent/CN219859922U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204384531U (en) | A kind of film splitter | |
| CN219859922U (en) | Winding core, winding roller and device for film production | |
| CN109599589A (en) | Battery core method for making and battery | |
| CN204310593U (en) | Easy-to-dismount packaging bag trimming material reel | |
| CN210577440U (en) | Peeling device for wire harness | |
| CN219620597U (en) | Prevent that film sticks up limit and roll up core, roller and film apparatus for producing | |
| CN215797415U (en) | Automatic roll changing device of film blowing machine | |
| CN105855325A (en) | Lithium ion battery tab bending correction device | |
| CN206200227U (en) | Battery pole piece cutting machine | |
| CN212077207U (en) | Electrostatic spinning receiving device for preparing oriented nanofiber membrane | |
| CN210489764U (en) | Winding mechanism for reducing scrapping of pole pieces | |
| CN211363462U (en) | Level and smooth setting device of sticky tape machine-shaping equipment | |
| CN204905370U (en) | Cylinder electricity core pole piece divides strip rolling machine | |
| CN208631017U (en) | A kind of package silk-screen coat peeling unit | |
| CN210516918U (en) | Pole piece head deviation correcting device of lithium ion battery sheet-making winder | |
| CN208272054U (en) | A kind of battery roll squeezer retractable volume clamp driving device | |
| CN220148755U (en) | Double-shaft rewinding machine for protective film | |
| CN209906027U (en) | Roll paper rewinding device | |
| CN207656858U (en) | Semi-automatic wood skin drop set | |
| CN207834103U (en) | A kind of winding former clamping plate | |
| CN207656857U (en) | A kind of semi-automatic wood skin drop set | |
| CN104444584A (en) | Packaging bag edge cut material winding drum convenient to detach | |
| CN218707645U (en) | Gumming canvas production coiling mechanism | |
| CN205367240U (en) | Full -automatic winding machine | |
| CN104590932A (en) | Elastic paper smoothing and rolling device for motor stator insulation paper |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |