阅读说明：本技术 无级变速带胶套及其制造方法 (Rubber sleeve for stepless speed change belt and manufacturing method thereof ) 是由 闫军 王增宝 游秋琴 陈贤义 于 2020-06-03 设计创作，主要内容包括：本发明提供一种无级变速带胶套及其制造方法,包括背部层、底胶层,位于背部层和底胶层之间的粘结层及位于粘结层中的线绳,背部层为缝制的筒状结构,包括顶层粘结层、内胶层、位于顶层粘结层和内胶层之间的顶层织物及位于顶层粘结层外侧面的标签层,由于本发明顶层织物层的外侧面上贴有外粘结层,便于标签层粘附于外粘结层,易于对无级变速带生产中的缠绕工序进行分序,缩短缠绕工序时间,缩短工厂生产节拍,提高生产效率。(The invention provides a stepless speed change belt rubber sleeve and a manufacturing method thereof, and the stepless speed change belt rubber sleeve comprises a back layer, a bottom rubber layer, a bonding layer positioned between the back layer and the bottom rubber layer and a cotton rope positioned in the bonding layer, wherein the back layer is of a sewn cylindrical structure and comprises a top bonding layer, an inner rubber layer, a top fabric positioned between the top bonding layer and the inner rubber layer and a label layer positioned on the outer side surface of the top bonding layer.)

1. The utility model provides a infinitely variable speed takes gum cover, includes back layer, primer layer, is located the tie coat between back layer and the primer layer and is located the cotton rope in the tie coat, its characterized in that, the tubular structure of back layer for making up, includes top layer tie coat, interior adhesive layer, is located the top layer fabric between top layer tie coat and the interior adhesive layer and is located the label layer of top layer tie coat lateral surface.

2. The infinitely variable speed tapestry of claim 1, wherein the top fabric is a transversely disposed drape.

3. The infinitely variable speed tapestry of claim 2, wherein the cord fabric has warp threads of a blend of cotton and nylon.

4. The infinitely variable speed belt rubber cover of claim 1, wherein the top adhesive layer is the same adhesive layer as the rubber material of the adhesive layer.

5. The infinitely variable speed belt rubber sleeve of claim 1, wherein the rubber raw material of the bottom rubber layer is ethylene propylene diene monomer.

6. The infinitely variable speed belt sleeve of claim 5, wherein the primer layer is a primer layer comprising staple fibers.

7. The infinitely variable speed belt sleeve of claim 1, further comprising a ground fabric on an inner side of the ground layer.

8. The infinitely variable speed belt gum of claim 7, wherein the base fabric is a sewn tubular structure fabric.

9. A method for manufacturing a continuously variable belt rubber cover according to any one of claims 1 to 8, comprising:

a. a back layer manufacturing process of producing a cylindrical back layer;

b. a back layer placing step of sleeving the cylindrical back layer on the molding hub;

c. and a winding step, namely winding an outer bonding layer, a thread rope, an inner bonding layer and a bottom glue layer on the back layer in sequence.

10. The manufacturing method of a continuously variable-speed belt rubber cover according to claim 9, wherein the back layer manufacturing process includes:

a rubberizing procedure, namely attaching the top bonding layer and the inner adhesive layer to two sides of the top fabric;

a cutting step of cutting the long-strip back layer produced in the rubberizing step into a sheet-shaped back layer;

a label layer adhering step of adhering a label layer to the top adhesive layer;

and a sewing step of sewing the sheet-shaped back layer into a cylindrical back layer.

11. The method of manufacturing a continuously variable-speed belt sleeve according to claim 10, wherein the rubberizing process includes an inner rubberizing layer process of attaching an inner rubberizing layer to one face of the top fabric.

12. The method of manufacturing a continuously variable-speed belt rubber cover according to claim 11, wherein the rubberizing process includes an outer rubberizing process of attaching a top adhesive layer to the other side of the top fabric.

13. The method of manufacturing a continuously variable rubber belt cover according to claim 9, further comprising a step of placing a base fabric, and winding or fitting the base fabric around an inner side surface of the base fabric.

Technical Field

The present invention relates to a continuously variable rubber belt cover and a method for manufacturing the same, and more particularly, to an unvulcanized continuously variable rubber belt cover and a method for manufacturing the same.

Background

The stepless speed change belt is widely used in motorcycles, multifunctional vehicles, beach vehicles, sleigh vehicles and the like, and generally comprises: the top fabric, the gum layer, tie coat, be located the cotton rope in the tie coat, primer layer and bottom fabric, still have the label of the information such as date, trade mark of rendition on the top fabric. The label is obtained by transferring information on a label layer to the outer surface of a rubber sleeve after the label layer containing the information is vulcanized, and then tearing the label layer, as shown in fig. 1. The label layer is not adhesive, so that the stepless speed change belt rubber sleeve needs to be wound layer by layer, the manufacturing time of the stepless speed change belt rubber sleeve is long, the winding process is shown in the Chinese patent publication CN109505923A production process or the attached drawing 4, the label layer needs to be sequentially arranged on the forming hub, and then the top layer fabric, the back glue layer, the bonding layer, the thread rope, the bonding layer, the bottom glue layer and the bottom layer fabric are sequentially wound.

Because the label layer is non-adhesive, the top fabric is wrapped to compress the label when the label is placed, preventing slippage around. In the later stage, a plurality of modes such as laser engraving and the like are adopted for manufacturing the label, but the market advantage is obvious in view of low cost and high definition of the label layer adopting transfer printing. However, the adoption of the label leads the time required for manufacturing the rubber sleeve to be longer at present, which becomes a bottleneck station for the production of the stepless speed change belt, and seriously influences the production rhythm of the stepless speed change belt, and the longer the production rhythm for a factory, the smaller the number of the stepless speed change belts produced in every day, the higher the cost of the factory, and the lower the market competitiveness, so that a new rubber sleeve of the stepless speed change belt or a new production mode of the rubber sleeve of the stepless speed change belt is urgently needed to be provided to improve the situation, shorten the production rhythm of the factory, and improve the competitiveness of products.

Disclosure of Invention

The invention provides a stepless speed change belt rubber sleeve which comprises a back layer, a bottom rubber layer, a bonding layer and a rope, wherein the bonding layer is positioned between the back layer and the bottom rubber layer, the rope is positioned in the bonding layer, the back layer is of a sewn cylindrical structure and comprises a top bonding layer, an inner rubber layer, a top fabric and a label layer, the top fabric is positioned between the top bonding layer and the inner rubber layer, and the label layer is positioned on the outer side face of the top bonding layer.

The top fabric is a transversely placed cord fabric.

The cord fabric is provided with warp yarns blended by cotton and nylon.

The top bonding layer is the same as the rubber raw material of the bonding layer.

The rubber raw material of the bottom rubber layer is ethylene propylene diene monomer.

The bottom glue layer is a bottom glue layer containing short fibers.

And the bottom fabric is positioned on the inner side surface of the bottom glue layer.

The bottom fabric is a sewn tubular fabric.

A method for manufacturing a continuously variable rubber belt sleeve comprises the following steps:

a. a back layer manufacturing process of producing a cylindrical back layer;

b. a back layer placing step of sleeving the cylindrical back layer on the molding hub;

c. and a winding step, namely winding an outer bonding layer, a thread rope, an inner bonding layer and a bottom glue layer on the back layer in sequence.

The back layer manufacturing process includes:

a rubberizing procedure, namely attaching the top bonding layer and the inner adhesive layer to two sides of the top fabric;

a cutting step of cutting the long-strip back layer produced in the rubberizing step into a sheet-shaped back layer;

a label layer adhering step of adhering a label layer to the top adhesive layer;

and a sewing step of sewing the sheet-shaped back layer into a cylindrical back layer.

The rubberizing process comprises an inner rubberizing process, wherein the inner rubberizing process is attached to one surface of the top layer fabric.

The rubberizing procedure comprises an outer rubberizing procedure, and the top bonding layer is attached to the other surface of the top fabric.

The method also comprises a process of placing the bottom fabric, wherein the bottom fabric is wound or sleeved on the inner side surface of the bottom glue layer

According to the invention, the outer bonding layer is additionally arranged outside the top fabric layer, so that the label layer can be conveniently adhered to the outer bonding layer, although the gluing time of the outer bonding layer is increased, the problem that the original winding station cannot be divided is solved, the top fabric layer and the inner glue layer of the winding station are divided and sewn into a cylindrical structure, and the cylindrical structure can be moved to other stations with less time or integrally matched, so that the production time of the winding station is reduced, the time problem of a bottleneck station in workshop production is solved, the production beat of the whole stepless speed change belt is shortened, and the production efficiency of the stepless speed change belt is improved.

Drawings

FIG. 1, a vulcanized infinitely variable speed belt rubber sleeve;

FIG. 2 is a schematic cross-sectional view of an unvulcanized continuously variable transmission belt rubber sleeve (FIG. 3A-A, with the hub omitted);

FIG. 3 is a schematic view of the gum cover on the forming hub;

FIG. 4 is a schematic view showing a manufacturing process of a continuously variable transmission belt rubber cover according to the prior art;

FIG. 5 is a schematic view showing a manufacturing process of the infinitely variable speed belt rubber cover of the present invention;

fig. 6 is a schematic view of a rubberizing process.

In the figure: 1. a label layer; 2. a top fabric layer; 3. an inner glue layer; 4. a bonding layer; 5. a cord; 6. a primer layer; 7. a base fabric; 8. a back layer; 9. an outer tie layer; 10. vulcanizing the rubber sleeve;

Detailed Description

Fig. 1 is a schematic view of a vulcanized rubber sleeve 10 with label information after vulcanization, and fig. 2 is a cross-sectional view of an unvulcanized rubber sleeve. Infinitely variable takes gum cover includes in proper order that has certain width and can run through the label layer 1 of whole gum cover length, has production information on the label layer 1, like date of production, trade mark information etc, the lateral surface at outer tie coat 9 is hugged closely to the one side that label layer 1 has information, and label information can be renditioned to the lateral surface of outer tie coat 9 after the gum cover vulcanizes, then tears label layer 1, only leaves the lateral surface of label information at outer tie coat 9. A top fabric layer 2 clinging to the inner side surface (the side opposite to the label layer 1) of the outer bonding layer 9, and an inner glue layer 3 (a back glue layer in the prior art) positioned on the inner side surface (the side opposite to the outer bonding layer 9) of the top fabric layer 2, wherein the label layer 1, the outer bonding layer 9, the top fabric layer 2 and the inner glue layer 3 are sewn into a cylindrical structure in advance to form a back layer 8, and the preferred back layer 8 is a butt joint cylindrical structure without a lap joint; the gum cover also includes a make coat layer 6, a tie layer 4 between the make coat layer 6 and the inner coat layer 3 or the backing layer 8, the tie layer 4 generally including an inner tie layer and an outer tie layer, and the cord 5 is located between the inner tie layer and the outer tie layer. Part gum cover can also be provided with bottom fabric 7 at the medial surface of primer layer 6 one side that deviates from tie coat 4 promptly, and bottom fabric 7 can be twined to the back layer with the lamellar structure form, and the bottom fabric of preferred tubular structure directly overlaps on the back layer, and tubular structure can be butt joint's tubular structure, also can be overlap joint's tubular structure, and bottom fabric can be the twill cloth that can use wantonly among the prior art, wide angle cloth etc..

Because back layer 8 contains outer tie coat 9, top fabric 2 and interior glue film 3, and need make up tubular structure, the fabric that consequently adopts is comparatively loose tyre cord cloth, and the warp that the tyre cord cloth is thicker is perpendicular to be set up with the trend of cotton rope, and the tyre cord cloth is transversely placed promptly, and the tyre cord cloth is preferred that the warp adopts the material of high strength low shrinkage to make, like cotton and nylon blending, and the content of the utility model patent of publication number CN204025527U can introduce the adoption completely.

The outer bonding layer 9 and the bonding layer 4 can be completely the same in rubber raw materials, any bonding glue in the prior art can be adopted, the outer bonding layer 9 is convenient for the label layer 1 to be attached to the outer side surface of the outer bonding layer under the conditions of heating and pressurizing due to the fact that the outer bonding layer has adhesion, and the label layer 1 is not easy to fall off from the outer bonding layer 9 in the process of transferring the rubber sleeve.

The rubber component of the inner rubber layer 3 may be the same as the rubber material of the primer layer 6, and for example, natural rubber, isoprene rubber, butadiene rubber, styrene-butadiene rubber, chloroprene rubber, hydrogenated acrylonitrile, ethylene-propylene rubber or ethylene-propylene-diene rubber, preferably high temperature and high heat ethylene-propylene-diene rubber, may be used. In order to improve or meet different performances of the stepless speed change belt, 1-5mm short fibers can be mixed in the bottom rubber layer 6, the short fibers can be one or a mixture of aromatic polyamide, polyester, cotton and aramid fiber, and the like, preferably, the direction of the short fibers in the stepless speed change belt is the transverse direction, is the same as the direction of the cord fabric and is vertical to the direction of the cord fabric, and the transverse rigidity of the belt is increased.

The material of the thread rope 5 is selected according to the performance requirement, such as common rayon, polyester or aramid fiber, the thread rope 5 can be formed by twisting, and the thread rope can be arranged in a mode of arranging the thread ropes in the left twisting direction and the right twisting direction in parallel, so that the thread rope in the same twisting direction is prevented from generating twisting and winding phenomenon of a belt due to the stress action, and the use performance is prevented from being influenced.

The manufacturing method of the infinitely variable speed belt rubber sleeve can adopt the following modes:

as shown in fig. 3 and 5, the present invention includes:

a. and a back layer manufacturing procedure for producing a cylindrical back layer 8, wherein the back layer 8 comprises a top layer bonding layer, an inner adhesive layer, a top layer fabric positioned between the top layer bonding layer and the inner adhesive layer and a label layer positioned on the outer side surface of the top layer bonding layer. The process comprises the following steps:

firstly, the rubberizing process, namely the inner glue layer 3 and the outer bonding layer 9 are pasted on two sides of the top layer fabric 2, and the rubberizing process can adopt a rotary press roller to adhere the three together. To ensure the thickness and quality of the rubberizing, the rubberizing may be performed layer by first attaching the inner glue layer 3 to one surface of the top fabric 2 using the rubberizing process of fig. 6, and then attaching the outer adhesive layer 9 to the other surface of the top fabric 2 in the same manner.

A cutting procedure, wherein the rubberizing procedure is basically to rubberize the whole piece of cloth, the rubberizing procedure forms a strip-shaped back layer, and the cutting procedure cuts the strip-shaped back layer into a sheet-shaped back layer according to the required length;

and thirdly, a label layer adhering process, namely heating and pressurizing the label layer to enable the label layer to be adhered to the outer side surface of the top adhesive layer, and attaching the information-containing surface of the label layer 1 to the outer adhesive layer 9.

A sewing step, wherein two ends of the sheet back layer with the label layer are butted or overlapped for sewing, preferably in a butting mode, and the sheet back layer is sewn into a cylindrical back layer 8; because the rubberizing is the ripe technology of manufacturing the drive belt, and batch production efficiency is higher, can adopt current equipment and personnel to carry out rubberizing, shearing and make up work, disperses to each station, reducible winding station's total time solves bottleneck station problem.

b. A back layer placing step of sleeving the cylindrical back layer 8 on the molding hub; this process can place at the winding process, also can be at the shaping hub transfer process after the vulcanization, directly overlaps on the shaping hub that removes the vulcanization gum cover in the transportation process, hugs closely shaping hub to one side of label layer 1, transports the winding process.

c. And a winding step of fixing the formed hub and sequentially winding the outer adhesive layer, the cord 5, the inner adhesive layer and the primer layer 6 on the back layer 8.

The bottom fabric 7 can be wound on the bottom glue layer or the cylindrical bottom fabric can be directly placed on the bottom glue layer according to the requirement, and the manufacture of the infinitely variable speed belt rubber sleeve is completed. Then, vulcanization, demolding, cutting, grinding and the like are carried out according to the prior art to form the infinitely variable speed belt.

By adopting the infinitely variable speed belt and the manufacturing method thereof, 20 percent of rubber sleeves are produced in one shift at present.

The outer side surface and the inner side surface mentioned herein are described with respect to the wider top side of the continuously variable transmission belt as the outer side and the narrower bottom side as the inner side, so that the inner side surface and the outer side surface on the hub are the outer side surface on the side close to the hub and the inner side surface on the side away from the hub.

All schematic diagrams are not scaled to scale for easy understanding of the positions of the layers, such as label layer 1, with an actual thickness of less than 1mm, typically about 0.01 to 0.1mm, and are shown expanded to show the positions.