CN216235386U

CN216235386U - Charging tray assembly, coiled material manufacturing mechanism, coiled material detection mechanism and winding equipment

Info

Publication number: CN216235386U
Application number: CN202120336548.9U
Authority: CN
Inventors: 马翠翠; 汪嘉伟; 刘宪尊; 刘志雄
Original assignee: Zhuhai Cosmx Battery Co Ltd
Current assignee: Zhuhai Cosmx Battery Co Ltd
Priority date: 2021-02-05
Filing date: 2021-02-05
Publication date: 2022-04-08
Anticipated expiration: 2031-02-05

Abstract

The application relates to a charging tray subassembly, coiled material preparation mechanism, coiled material detection mechanism and coiling equipment. A tray assembly, comprising: the first material tray comprises a pair of first material tray plates which are oppositely arranged and a first shaft sleeve connected with the first material tray plates, and the first shaft sleeve is provided with a first shaft hole which extends along the axial direction of the first shaft sleeve; the second charging tray comprises a pair of oppositely arranged second charging tray plates and a second shaft sleeve connected with the second charging tray plates, the second shaft sleeve is provided with a second shaft hole extending along the axial direction of the second shaft sleeve, and the cross sections of the first shaft hole and the second shaft hole are different in shape. The shaft holes of the material disc shaft sleeves of different material belts are set to be different in shape, so that the material discs can only be mounted on the support shafts corresponding to the shapes, the condition that the material discs of different material belts are mounted by mistake is effectively avoided through the foolproof design of the assembly structure, the material belts are prevented from being used by mistake, the quality of products is favorably ensured, and the material disc shaft sleeve type material disc assembly device can be used for a manufacturing mechanism, a detection mechanism and a lug manufacturing mechanism of winding equipment of coiled materials such as lug rolls.

Description

Charging tray assembly, coiled material manufacturing mechanism, coiled material detection mechanism and winding equipment

Technical Field

The utility model belongs to the technical field of automation equipment, and particularly relates to a material tray for coiled materials such as a tab coil and the like, a coiled material manufacturing mechanism, a detection mechanism and winding equipment.

Background

The tab is one of the essential components in the battery cell, and is a metal conductor that leads out the positive and negative plates from the battery cell, that is, a contact point when the battery cell is charged and discharged, and can lead out the current from the plates to the battery terminal. The two electrodes in the battery cell have different potentials, the positive electrode has a high potential, and the negative electrode has a low potential, so that the two tabs are made of different materials. The commonly used anode lug and cathode lug are respectively made of aluminum foil and copper foil, the oxidation layer of the aluminum foil is very compact, the current collector can be prevented from being oxidized, and the current collector is generally used on an electrode with high potential, namely the anode lug of the anode; the oxide layer of the nickel foil is relatively loose, and is generally used for an electrode with a low potential, namely a tab of a negative electrode, in order to prevent the oxidation. And the nickel foil is difficult to form lithium-embedded alloy with lithium at low potential, and the aluminum foil can be subjected to LiAl alloying with lithium at low potential, which can affect the performance of the battery core, so that the two tab materials cannot be used in a wrong way.

In the production and manufacturing process, the tab material is generally wound on a material disc, and winding and feeding are performed by using an unwinding device. The existing lug material disc is basically the same in shape and structure, the aluminum material and the nickel material only have slight difference in color and hardness, when the two materials are wound on the material disc, the two materials are difficult to accurately distinguish from the appearance, so that when the automatic batch production is carried out, the situation that the anode lug material and the cathode lug material are mixed due to negligence of personnel or carelessness of management can be caused, if the two materials cannot be found in time after being mixed, the quality defects such as performance failure and the like can be caused after the manufactured battery cell is used for a certain time, the use experience of consumers can be influenced, the production cost of manufacturers can be improved due to measures such as product recall, rework and the like, and even the reputation of the product quality is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a material tray assembly capable of preventing materials from being used wrongly, and a coiled material manufacturing mechanism, a coiled material detection mechanism and a winding device using the material tray assembly.

In order to achieve the purpose, the utility model adopts the following technical solutions:

a tray assembly, comprising: the first material tray comprises a pair of first material tray plates which are oppositely arranged and a first shaft sleeve connected with the first material tray plates, and the first shaft sleeve is provided with a first shaft hole which extends along the axial direction of the first shaft sleeve; the second charging tray comprises a pair of oppositely arranged second charging tray plates and a second shaft sleeve connected with the second charging tray plates, the second shaft sleeve is provided with a second shaft hole extending along the axial direction of the second shaft sleeve, and the cross sections of the first shaft hole and the second shaft hole are different in shape.

Further, the cross-sectional shapes of the first shaft hole and the second shaft hole are selected from circular, square, triangular, character or letter shapes, character-like or letter shapes.

Furthermore, the cross section of the first shaft hole is circular, the cross section of the second shaft hole is square, and four corners of the square are rounded.

Further, the axis of the first shaft sleeve passes through the center of the first material tray plate, and the axis of the second shaft sleeve passes through the center of the second material tray plate.

Further, a gasket is sleeved outside the first shaft sleeve and/or the second shaft sleeve.

Furthermore, the outer contour shape of the cross section of the first shaft sleeve corresponds to the cross section shape of the first shaft hole, and the outer contour shape of the cross section of the second shaft sleeve corresponds to the cross section shape of the second shaft hole.

The utility model also provides a coiled material manufacturing mechanism, which comprises: the automatic winding machine comprises a first machine table, a first feeding roller shaft, a second feeding roller shaft, a first winding roller shaft, a second winding roller shaft, a guide roller and a rubberizing assembly, wherein the first feeding roller shaft, the second feeding roller shaft, the first winding roller shaft, the second winding roller shaft, the guide roller and the rubberizing assembly are arranged on the first machine table; the outer contour shape of the cross section of the first winding roller shaft is different from the outer contour shape of the cross section of the second winding roller shaft.

The utility model also provides a coiled material detection mechanism, which comprises: the device comprises a second machine table, a third winding roller shaft, a fourth winding roller shaft and at least one CCD, wherein the third winding roller shaft, the fourth winding roller shaft and the at least one CCD are arranged on the second machine table; the outer contour shape of the cross section of the third winding roller shaft is different from the outer contour shape of the cross section of the fourth winding roller shaft.

The utility model also provides a winding device, which comprises a tab manufacturing mechanism, wherein the tab manufacturing mechanism comprises: the device comprises a third machine table, a third unwinding roller shaft, a fourth unwinding roller shaft, a first cutter, a second cutter, and passing rollers, wherein the third unwinding roller shaft, the fourth unwinding roller shaft, the first cutter, the second cutter and the passing rollers are arranged between the third unwinding roller shaft and the first cutter and between the fourth unwinding roller shaft and the second cutter; and the outer contour shape of the cross section of the third unwinding roller shaft is different from that of the cross section of the fourth unwinding roller shaft.

Further, the cutting machine also comprises a first magnetic switch and a second magnetic switch which are arranged on the third machine table, wherein the first magnetic switch is positioned in front of the first cutter, and the second magnetic switch is positioned in front of the second cutter.

According to the technical scheme, the shaft holes of the charging tray shaft sleeves of different material belts are set to be different in shape, so that the charging tray can only be installed on the supporting shaft corresponding to the shape, the situation that the charging trays of different material belts are installed by mistake is effectively avoided through the foolproof design of the assembling structure, the material belts are prevented from being used by mistake, and the product quality is guaranteed. The material tray with the fool-proof structure can be used for a manufacturing mechanism of coiled materials such as a pole lug coil and the like, a detection mechanism and a pole lug manufacturing mechanism of winding equipment, and supporting shafts corresponding to different shaft hole shapes are arranged on the mechanisms respectively, so that the problem of product quality caused by misloading and misloading of material trays made of different materials can be solved. The magnetic switch can be further arranged on the tab manufacturing mechanism of the winding equipment and used for identifying the magnetic material belt, so that the condition of wrong material use is effectively avoided, and the product quality is improved.

Drawings

In order to illustrate the embodiments of the present invention more clearly, the drawings that are needed in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained by those skilled in the art without inventive effort.

FIG. 1 is a schematic structural diagram of a first tray according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a schematic structural diagram of a second tray according to the embodiment of the present invention;

FIG. 4 is a cross-sectional view taken along line B-B of FIG. 3;

FIG. 5 is a schematic structural view of a tab roll manufacturing mechanism using the tray assembly of the present invention;

FIG. 6 is a schematic structural view of a tab coil detection mechanism using the tray assembly of the present invention;

fig. 7 is a schematic structural diagram of a cell winding tab unwinding mechanism using the charging tray assembly of the present invention.

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Detailed Description

The utility model will be described in detail below with reference to the accompanying drawings, wherein for the purpose of illustrating embodiments of the utility model, the drawings showing the structure of the device are not to scale but are partly enlarged, and the schematic drawings are only examples, and should not be construed as limiting the scope of the utility model. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is provided solely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.

Referring to fig. 1, 2, 3 and 4, the tray assembly of the present embodiment includes a first tray 1 and a second tray 2, and the first tray 1 and the second tray 2 are respectively wound with material tapes of different materials, for example, the first tray 1 can be used for winding an aluminum foil as a positive tab, and the second tray 2 can be used for winding a nickel foil as a negative tab. The first material tray 1 comprises a pair of first material tray plates 1-1 which are arranged in parallel to the line A-A in an opposite mode and a first shaft sleeve 1-2 which connects the two first material tray plates 1-1, the two first material tray plates 1-1 can be circular in shape, the first shaft sleeve 1-2 is arranged between the two material tray plates 1-1 and perpendicular to the line A-A, two ends of the first shaft sleeve are respectively connected with the two first material tray plates 1-1, and the axis of the first shaft sleeve 1-2 passes through the center (circle center) of the first material tray plate 1-1. The first shaft sleeve 1-2 is provided with a first shaft hole 1-2a extending along the axial direction, the cross section of the first shaft hole 1-2a is circular, the inner diameter of the first shaft hole 1-2a is 100mm, the material belt is wound on the shaft sleeve and is positioned between the two first material disc plates 1-1, and the distance between the two first material disc plates 1-1 is determined by the width of the material belt. In order to avoid the wear of the material belt, as a preferred embodiment of the present invention, a washer 3 is sleeved outside the first shaft sleeve 1-2, the washer 3 of the present embodiment has an outer diameter of 150mm, and an inner diameter corresponding to the outer diameter of the first shaft sleeve 1-2.

The second material tray 2 comprises a pair of second material tray plates 2-1 which are arranged in parallel with the line B-B in an opposite mode and a second shaft sleeve 2-2 which connects the two second material tray plates 2-1, the second material tray plate 2-1 of the embodiment is also in a circular ring shape, the second shaft sleeve 2-2 is arranged between the two second material tray plates 2-1 and is perpendicular to the line B-B, two ends of the second shaft sleeve 2-2 are respectively connected with the two second material tray plates 2-1, and the axis of the second shaft sleeve 2-2 passes through the center of the second material tray plate 2-1. The second shaft sleeve 2-2 is provided with a second shaft hole 2-2a extending along the axial direction, the cross section shape of the second shaft hole 2-2a is different from that of the first shaft hole 1-2a, the cross section shape of the second shaft hole 2-2a of the embodiment is square, and the side length of the square is 90 mm. The outer contour shape of the shaft sleeve section can be the same as or different from the cross-sectional shape of the shaft hole, and in order to facilitate processing and save cost, the outer contour shape of the shaft sleeve section of the embodiment corresponds to the cross-sectional shape of the shaft hole, for example, the first shaft hole 1-2a of the first shaft sleeve 1-2 is a circular hole, the first shaft sleeve 1-2 is a hollow cylinder, the second shaft hole 2-2a of the second shaft sleeve 2-2 is a square hole, and the second shaft sleeve 2-2 is a hollow square column. The first tray plate and the second tray plate can be made of resin materials, and the outer diameter can be 300-500 mm. The periphery of the second shaft sleeve 2-2 is also sleeved with a gasket 3. In addition, in order to avoid the abrasion of the sleeve and the washer, the second sleeve 2-2 of the present embodiment is provided with rounded corners at the four corners of the square.

The shaft holes of the shaft sleeves on the two material trays are set to be different in section shapes (such as circular shapes, square shapes, triangular shapes, polygonal shapes, characters or letter shapes, similar characters or letter shapes), so that the material trays can only be matched with the supporting shafts corresponding to the shapes for use, the supporting shafts not corresponding to the shapes cannot be inserted into the shaft holes, the material trays are prevented from being mounted on wrong supporting shafts, foolproof is achieved, and the use errors of different material belts are effectively prevented. The supporting shaft (not shown) is matched with the material tray for use, the shape of the supporting shaft corresponds to that of the shaft hole in the material tray, for example, the first material tray and the first supporting shaft (not shown) are matched for use, the outer contour shape of the section of the first supporting shaft corresponds to that of the first shaft hole, the second material tray and the second supporting shaft (not shown) are matched for use, the outer contour shape of the section of the second supporting shaft corresponds to that of the shaft hole, if the circular shaft hole and the cylindrical supporting shaft are matched for use, the square shaft hole and the square cylindrical supporting shaft are matched for use, the supporting shaft and the shaft hole which do not correspond in shape can not be installed, and the two material trays can be effectively prevented from being used wrongly. The supporting shaft is in clearance fit with the shaft hole, and the clearance between the supporting shaft and the shaft hole is 0-5 mm. In a specific application, the outer contour of the cross section of the first support shaft is circular, the outer diameter of the first support shaft is 95mm, the outer contour of the cross section of the second support shaft is square, the side length of the second support shaft is 85mm, and the fillet is 13 mm.

The use of the tray assembly of the present invention in various mechanisms of tab and cell production equipment will be further described with reference to fig. 5 to 7.

As shown in fig. 5, the tray assembly of the present invention is applied to a coil manufacturing mechanism such as a tab coil, the coil manufacturing mechanism of this embodiment is a first machine 100, the first machine 100 includes a first feeding roller 101, a second feeding roller 102, a first winding roller 103, a second winding roller 104, a guide roller 105 and a glue pasting assembly 106 disposed on the first machine 100, the first machine 100 of this embodiment includes a first work table 100a and a second work table 100b, the first and second work tables may be separately disposed machine tables or an integrated machine table, the first feeding roller 101 and the first winding roller 103 are disposed correspondingly on the first work table 100a, and the guide roller 105 and the glue pasting assembly 106 are disposed between the first feeding roller 101 and the first winding roller 103. The second feeding roller 102 and the second winding roller 104 are correspondingly disposed on the second worktable 100b, and a guide roller 105 and a rubberizing assembly 106 are disposed between the second feeding roller 102 and the second winding roller 104. The number and positions of the guide rollers 105 and the rubberizing assemblies 106 can be set according to requirements, and the structure of the guide rollers and the rubberizing assemblies is the same as that of the guide rollers and the rubberizing assemblies in the conventional tab roll manufacturing mechanism. First, the second material loading roller is the material loading roller of conventional utmost point ear book preparation mechanism, the material roll coil of different materials, if aluminium strip raw materials book, nickel strip raw materials book is placed respectively on first material loading roller 101 and second material loading roller 102, the charging tray is installed on the winding roller, if the axle sleeve of first charging tray and second charging tray sets up respectively on first winding roller 103 and second winding roller 104, first winding roller 103 of this embodiment is the first back shaft corresponding with first shaft hole shape, be cylindrical roller, second winding roller 104 is the second back shaft corresponding with the second shaft hole shape, be the square column shape roller, because axle sleeve (charging tray) can only be installed with the back shaft cooperation that the shape corresponds, thereby can avoid the material area of different materials to obscure. When the tab coil is manufactured, the first feeding roller and the second feeding roller are respectively unreeled, the aluminum strip and the nickel strip respectively bypass the guide roller 105, pass through the rubberizing assembly 106 and then are wound on the first winding roller shaft and the second winding roller shaft, the rubberizing assembly finishes the tab glue laminating process, and after the first winding roller shaft and the second winding roller shaft are respectively wound, the manufacture of the anode tab and the cathode tab is finished.

As shown in fig. 6, the tray assembly of the present invention is applied to a coil detection mechanism such as a tab coil, wherein a Charge-coupled Device (CCD) is disposed in the coil detection mechanism, and the CCD mainly functions to detect whether the sizes (including glue width, glue height, shoulder width, etc.) of tab glue and metal strip meet the standard requirements after the tab is formed. The CCD detection is to replace human eyes with a machine for measurement and judgment, the working principle of the CCD detection is that an object captured by the CCD is converted into an image signal, the image signal is sent to a background image processing system, the image processing system converts the image signal into a digital signal according to information such as pixel distribution, brightness, color and the like, the characteristics of a target such as area, quantity, position, length and the like are extracted from the digital signal, then the automatic identification function of whether a material is qualified or not is realized according to preset threshold conditions such as size, angle, quantity, qualified/unqualified surface, existence/nonexistence and the like, then the judgment result is sent to a control system, and the control system controls the operation of equipment on site according to the judgment result. The CCD can be directly purchased from the existing products on the market, the image recognition principle and the discrimination process are conventional technologies, are not innovation points of the utility model, and are not described in detail here.

The coil detection mechanism of this embodiment is a second machine 200, the second machine 200 includes a first unwinding roller 201, a second unwinding roller 202, a third winding roller 203, a fourth winding roller 204, a first CCD205, a second CCD206, a third CCD207 and a fourth CCD208, which are disposed on the second machine 200, and the trays are respectively mounted on the unwinding roller and the winding roller. The second machine table 200 of this embodiment includes a third workbench 200a and a fourth workbench 200b, the third and fourth workbench may be separately arranged machine tables or an integrated machine table, the first unwinding roller shaft 201 and the third winding roller shaft 203 are correspondingly arranged and arranged on the third workbench 200a, the first unwinding roller shaft 201 and the third winding roller shaft 203 are first support shafts having shapes corresponding to the shapes of the first shaft holes, and are cylindrical rollers, and the shaft sleeves of the first tray can only be assembled on the first unwinding roller shaft 201 and the third unwinding roller shaft 203; the second unreels the roller 202 and the fourth winding roller 204 corresponds the setting and sets up on fourth workstation 200b, and the second unreels the roller 202 and the fourth winding roller 204 is the corresponding second back shaft of shape and second shaft hole shape, for the square column roller, and the axle sleeve of second charging tray can only be assembled on the second unreels the roller 202 and the fourth unreels the roller 204, has just so avoided the material area charging tray of two kinds of different materials to load in mistake, has confused. During detection, the first unwinding roller shaft 201 and the second unwinding roller shaft 202 are respectively unwound, the third winding roller shaft 203 and the fourth winding roller shaft 204 are respectively wound, the first CCD205 and the second CCD206 are arranged between the first unwinding roller shaft 201 and the third winding roller shaft 203, and CCD detection is respectively carried out on the two side surfaces of the tab material belt wound between the first unwinding roller shaft 201 and the third winding roller shaft 203; the third CCD207 and the fourth CCD208 are disposed between the second unwinding roller shaft 202 and the fourth winding roller shaft 204, and CCD inspection is performed on both side surfaces of the tab material tape wound between the second unwinding roller shaft 202 and the fourth winding roller shaft 204, respectively. After the tab roll is inspected, the tab roll can be packaged into a final finished product for shipment.

In other embodiments, the setting position and the setting number of the CCDs may also be changed according to the requirement, for example, one or more CCDs may be disposed in front of the first winding roller shaft 103 and/or the second winding roller shaft 104 of the coil manufacturing mechanism, so that all structures shown in fig. 6 are omitted, and the CCDs and the winding roller shafts form a detection mechanism for detecting the material strip in the material tray, so that the manufacturing equipment has a higher streamlined degree, and the cost is saved.

As shown in fig. 7, the tray assembly of the present invention is applied to a tab making mechanism of a cell winding apparatus, the winding apparatus includes a tab making mechanism and other mechanisms of the winding apparatus, and the other mechanisms are the structures of the existing winding apparatus, which is not described herein again. The tab manufacturing mechanism of this embodiment is a third machine 300, the third machine 300 includes a third unwinding roller shaft 301, a fourth unwinding roller shaft 302, a first magnetic switch 303, a second magnetic switch 304, a first cutter 305, a second cutter 306 and a roller 307, which are disposed on the third machine 300, the third machine 300 of this embodiment includes a fifth workbench 300a and a sixth workbench 300b, and the fifth workbench and the sixth workbench may be separately disposed machines or may be an integrated machine. Charging trays (positive lug rolls and negative lug rolls) made of different material belts are respectively arranged on a third unwinding roller shaft 301 and a fourth unwinding roller shaft 302, the third unwinding roller shaft 301 is a first supporting shaft with a shape corresponding to that of a first shaft hole and is a cylindrical roller, and the fourth unwinding roller shaft 302 is a second supporting shaft with a shape corresponding to that of a second shaft hole and is a square cylindrical roller. A first cutter 305 and a second cutter 306 are correspondingly arranged behind the third unwinding roller shaft 301 and the fourth unwinding roller shaft 302 respectively, the third unwinding roller shaft 301 and the first cutter 305 are arranged on the fifth workbench 300a, the fourth unwinding roller shaft 302 and the second cutter 306 are arranged on the sixth workbench 300b, a plurality of rollers 307 are arranged between the third unwinding roller shaft 301 and the first cutter 305, a material belt (aluminum tab) on the first tray 1 bypasses the rollers 307 and is pulled to the first cutter 305 for cutting, a positive tab of one sheet is obtained, a material belt (nickel tab) on the second tray 2 bypasses the rollers 307 and is pulled to the second cutter 306 for cutting, and a negative tab of one sheet is obtained. Since the positive tab is generally an aluminum foil, the negative tab is generally a nickel foil, and nickel is a magnetic material, the two materials can be identified by magnetic switches such as a hall switch, in this embodiment, the first magnetic switch 303 is arranged before the first cutter 305, the second magnetic switch 304 is arranged before the second cutter 306, and both the first magnetic switch 303 and the second magnetic switch 304 are in communication connection with a console of the winding device. For the positive lug (aluminum lug), no signal is output when the first magnetic switch 303 does not detect a magnetic object, if a wrong nickel lug is used, the first magnetic switch 303 detects the magnetic object and outputs a signal to the console, and the console receives the signal of the first magnetic switch 303, alarms and stops to wait for the checking and processing of an operator; for the negative electrode tab (nickel tab), no signal is output when the second magnetic switch 304 does not detect the magnetic object, and if the console does not receive the signal of the second magnetic switch 304, the console alarms and stops to wait for the checking processing of the operator. Through setting up magnetic switch, can further improve the mistake proofing function of coiling equipment, combine the design of charging tray, can effectively solve just, the negative pole ear problem of using by mistake to guarantee product quality.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. Charging tray subassembly, its characterized in that includes:

the first material tray comprises a pair of first material tray plates which are oppositely arranged and a first shaft sleeve connected with the first material tray plates, and the first shaft sleeve is provided with a first shaft hole which extends along the axial direction of the first shaft sleeve;

the second charging tray comprises a pair of oppositely arranged second charging tray plates and a second shaft sleeve connected with the second charging tray plates, the second shaft sleeve is provided with a second shaft hole extending along the axial direction of the second shaft sleeve, and the cross sections of the first shaft hole and the second shaft hole are different in shape.

2. The tray assembly of claim 1, wherein: the cross-sectional shapes of the first shaft hole and the second shaft hole are selected from circular, square, triangular, character or letter shapes, character-like or letter shapes.

3. The tray assembly of claim 1 or 2, wherein: the cross-sectional shape in first shaft hole is circular, the cross-sectional shape in second shaft hole is square, square four angular position radius angles.

4. The tray assembly of claim 1, wherein: the axis of the first shaft sleeve passes through the center of the first material tray plate, and the axis of the second shaft sleeve passes through the center of the second material tray plate.

5. The tray assembly of claim 1, wherein: and a gasket is sleeved outside the first shaft sleeve and/or the second shaft sleeve.

6. The tray assembly of claim 1, wherein: the outer contour shape of the cross section of the first shaft sleeve corresponds to the cross section shape of the first shaft hole, and the outer contour shape of the cross section of the second shaft sleeve corresponds to the cross section shape of the second shaft hole.

7. A web making mechanism comprising: the automatic winding machine comprises a first machine table, a first feeding roller shaft, a second feeding roller shaft, a first winding roller shaft, a second winding roller shaft, a guide roller and a rubberizing assembly, wherein the first feeding roller shaft, the second feeding roller shaft, the first winding roller shaft, the second winding roller shaft, the guide roller and the rubberizing assembly are arranged on the first machine table; the method is characterized in that: the outer contour shape of the cross section of the first winding roller shaft is different from the outer contour shape of the cross section of the second winding roller shaft, the material tray is the material tray assembly in claim 1, and the first shaft sleeve and the second shaft sleeve are respectively arranged on the first winding roller shaft and the second winding roller shaft.

8. A web detection mechanism comprising: the device comprises a second machine table, a third winding roller shaft, a fourth winding roller shaft and at least one CCD, wherein the third winding roller shaft, the fourth winding roller shaft and the at least one CCD are arranged on the second machine table; the method is characterized in that: the outer contour shape of the cross section of the third winding roller shaft is different from the outer contour shape of the cross section of the fourth winding roller shaft, the charging tray is the charging tray assembly in claim 1, and the first shaft sleeve and the second shaft sleeve are respectively arranged on the third winding roller shaft and the fourth winding roller shaft.

9. A winding apparatus comprising a tab making mechanism, the tab making mechanism comprising: the device comprises a third machine table, a third unwinding roller shaft, a fourth unwinding roller shaft, a first cutter, a second cutter, and passing rollers, wherein the third unwinding roller shaft, the fourth unwinding roller shaft, the first cutter, the second cutter and the passing rollers are arranged between the third unwinding roller shaft and the first cutter and between the fourth unwinding roller shaft and the second cutter; the material tray assembly is characterized in that the outer contour shape of the cross section of the third unwinding roller shaft is different from the outer contour shape of the cross section of the fourth unwinding roller shaft, the material tray assembly is the material tray assembly in claim 1, and the first shaft sleeve and the second shaft sleeve are respectively arranged on the third unwinding roller shaft and the fourth unwinding roller shaft.

10. The winding apparatus according to claim 9, characterized in that: the first magnetic switch is arranged in front of the first cutter, and the second magnetic switch is arranged in front of the second cutter.