阅读说明：本技术 耐磨皮带的生产工艺 (Production process of wear-resistant belt ) 是由 黄凯军 余佳政 裘浙锋 于 2020-06-18 设计创作，主要内容包括：本申请公开了一种耐磨皮带的生产工艺,包括以下步骤：将多层橡胶基层复合成环形带坯；在完成复合的环形带坯外表面涂覆胶水；在涂有胶水的环形带坯的外表面粘接一层耐磨布；将粘有耐磨布的环形带坯放入到硫化模具中,并在硫化过程中通过硫化的高温、高压在环形带坯的外表面形成若干环状凸齿,完成硫化后形成传动带筒；根据皮带宽度,对完成硫化的传动带筒进行裁切；S6、翻转,将完成裁切的皮带的内、外侧进行翻转,将耐磨布所在侧作为皮带的内侧。本申请的结构能够有效提高皮带的接触面积、降低打滑概率,而粘上一层耐磨布可以有效提高接触面的耐磨性。并且由于采用的是先粘接后硫化的设置,使得耐磨布的连接非常牢靠,不易发生脱落。(The application discloses production technology of wear-resistant belt, including following step: compounding multiple layers of rubber base layers into an annular belt blank; coating glue on the outer surface of the completed composite annular belt blank; bonding a layer of wear-resistant cloth on the outer surface of the annular belt blank coated with the glue; putting the annular belt blank adhered with the wear-resistant cloth into a vulcanization mould, forming a plurality of annular convex teeth on the outer surface of the annular belt blank through the high temperature and high pressure of vulcanization in the vulcanization process, and forming a transmission belt drum after the vulcanization is finished; cutting the vulcanized transmission belt drum according to the width of the belt; and S6, overturning the inner side and the outer side of the cut belt, and taking the side where the wear-resistant cloth is located as the inner side of the belt. The utility model provides a structure can effectively improve the area of contact of belt, reduce the probability of skidding, and glues the wearability that one deck wear-resisting cloth can effectively improve the contact surface. And because the adoption is the setting of gluing earlier the vulcanization afterwards for the connection of wear-resisting cloth is very firm, is difficult for taking place to drop.)

1. A production process of a wear-resistant belt is characterized by comprising the following steps:

s1, compounding, namely compounding the multiple layers of rubber substrates (120) into an annular belt blank;

s2, gluing, namely coating glue on the outer surface of the annular belt blank subjected to compounding;

s3, sticking cloth, namely sticking a layer of wear-resistant cloth (200) on the outer surface of the annular belt blank coated with glue;

s4, vulcanizing, namely putting the annular belt blank adhered with the wear-resistant cloth (200) into a vulcanizing mold, forming a plurality of annular convex teeth on the outer surface of the annular belt blank through high temperature and high pressure of vulcanization in the vulcanizing process, and forming a transmission belt drum after the vulcanization is finished;

s5, cutting, namely cutting the vulcanized transmission belt drum according to the width of the belt;

and S6, turning, namely turning the inner side and the outer side of the cut belt, and taking the side where the wear-resistant cloth (200) is located as the inner side of the belt.

2. A process for manufacturing a wear-resistant belt as claimed in claim 1, characterized in that: the wear-resistant cloth (200) is a cylindrical plain cloth.

3. A process for manufacturing a wear-resistant belt as claimed in claim 2, characterized in that: the plain cloth is integrally formed by cylindrical weaving.

4. A process for manufacturing a wear-resistant belt as claimed in claim 2, characterized in that: the plain cloth is formed by sewing and connecting two ends of a plane cloth.

5. A process for manufacturing a wear-resistant belt as claimed in claim 1, characterized in that: the weft stretching rate of the wear-resistant cloth (200) is more than or equal to 300%, and the radial stretching rate is more than or equal to 200%.

6. A process for manufacturing a wear resistant belt as claimed in claim 5, characterized in that: after vulcanization, 0.2-0.6 of the thickness of the wear-resistant cloth (200) is embedded into the outer side wall of the transmission belt cylinder.

7. The process for producing a wear resistant belt as claimed in claim 6 wherein: the wear-resistant cloth (200) is embedded into the outer side wall of the transmission belt cylinder in a grid shape, and the coverage rate of the wear-resistant cloth (200) on the outer side wall of the transmission belt cylinder is 50-80%.

8. A process for manufacturing a wear-resistant belt as claimed in claim 1, characterized in that: the glue is sprayed on the outer surface of the annular strip blank, the annular strip blank rotates in the spraying process, and the glue forms an adhesive layer with the thickness smaller than 0.2mm on the surface of the annular strip blank.

9. A process for manufacturing a wear resistant belt as claimed in any one of claims 1 to 7, characterized in that: the weft yarns and the warp yarns of the wear-resistant cloth (200) are all core-spun yarns, the core-spun yarns comprise core yarns and covering yarns covering the core yarns, the core yarns are 10-40D spandex yarns, and the covering yarns are 40-80 count cotton yarns.

10. A process for manufacturing a wear-resistant belt as claimed in claim 1, characterized in that: in the compounding process, a thread rope is wound on the outer side wall of one rubber base layer (120), and the thread rope is wound to cover the rubber base layer (120) to form a tensile layer (110); wherein, the rubber base layers (120) and the tensile layer (110) are bonded through viscose glue.

Technical Field

The application relates to the technical field of transmission belt production, in particular to a production process of a wear-resistant belt.

Background

The present production process of rubber belt, as disclosed in chinese patent publication No. CN1887582A, discloses a process for preparing an elastic rubber transmission belt, which comprises mixing rubber material and other auxiliary materials, milling, thinly passing and cutting into rubber sheets, wrapping the cut rubber sheets on a cylindrical blank-making mold with certain elasticity, winding high-elasticity bone threads and wrapping the rubber sheets on the rubber sheets in sequence to obtain cylindrical rubber blanks, sleeving the cylindrical rubber blanks on a vulcanization inner mold, placing the cylindrical rubber blanks in a vulcanization outer mold for vulcanization, demolding, cutting and packaging the formed transmission belt blanks.

In the related scheme, although the performance of the rubber is greatly improved through vulcanization, the rubber has better wear resistance, but the transmission belt is a high-wear part, so that the use wear is larger, the replacement frequency is still higher, and a wear-resistant belt with better wear resistance needs to be designed.

Disclosure of Invention

Aiming at the problem of insufficient wear resistance of the produced belt in the related art, the application aims to provide a production process of a wear-resistant belt.

The technical purpose of the application is realized by the following technical scheme:

a production process of a wear-resistant belt comprises the following steps:

s1, compounding, namely compounding the multiple layers of rubber base layers into an annular belt blank;

s2, gluing, namely coating glue on the outer surface of the annular belt blank subjected to compounding;

s3, sticking cloth, namely sticking a layer of wear-resistant cloth on the outer surface of the annular belt blank coated with glue;

s4, vulcanizing, namely putting the annular belt blank adhered with the wear-resistant cloth into a vulcanizing mold, forming a plurality of annular convex teeth on the outer surface of the annular belt blank through high temperature and high pressure of vulcanization in the vulcanizing process, and forming a transmission belt drum after the vulcanization is finished;

s5, cutting, namely cutting the vulcanized transmission belt drum according to the width of the belt;

and S6, overturning the inner side and the outer side of the cut belt, and taking the side where the wear-resistant cloth is located as the inner side of the belt.

So set up, at first can produce the belt that has cyclic annular dogtooth, the area of contact of belt can effectively be improved to this structure to can reduce the probability of skidding, secondly, it can effectively improve the wearability of contact surface to glue one deck wear-resisting cloth. And because the adoption is the setting of gluing earlier the vulcanization afterwards for the connection of wear-resisting cloth is very firm, is difficult for taking place to drop.

More preferably: the wear-resistant cloth is a cylindrical plain cloth.

According to the arrangement, the plain cloth can provide better resistance in the belt, and the cylindrical cloth is integrally formed in the circumferential direction, so that the plain cloth is not easy to fall off and separate from the belt due to fracture in practical use.

More preferably: the plain cloth is integrally formed by cylindrical weaving.

So set up, directly adopt to weave exactly cylindric cloth, need not the sewing connection, consequently do not have the problem that the junction is thick, can form better overall connection structure in vulcanizing process together with the ring-shaped belt base.

More preferably: the plain cloth is formed by sewing and connecting two ends of a plane cloth.

So set up, form cylindric cloth through the sewing, the cost is lower, and the plain weave cloth parameter that can select is more.

More preferably: the weft stretching rate of the wear-resistant cloth is more than or equal to 300%, and the radial stretching rate of the wear-resistant cloth is more than or equal to 200%.

So set up, under the prerequisite of embedding, can effectually ensure the fastness of being connected of wear-resisting fabric layer and area body, consequently, the radial and latitudinal direction stretch rate of wear-resisting fabric layer all can set up higher for the belt has longer life.

More preferably: after vulcanization, 0.2-0.6 of the thickness of the wear-resistant cloth is embedded into the outer side wall of the transmission belt drum.

So set up, through vulcanizing, when forming the dogtooth, in the area body of impressing wear-resistant fabric layer, not only can strengthen wear-resistant fabric layer's intensity, can improve simultaneously and wear-resistantly put the effect under being connected between thing groove and the area body, ensure that wear-resistant fabric layer can not drop in the use, and the outstanding annular strip base internal surface of reserve part then can play the effect that increases the wearability.

More preferably: the wear-resistant cloth is embedded into the outer side wall of the transmission belt cylinder in a grid shape, and the coverage rate of the wear-resistant cloth on the outer side wall of the transmission belt cylinder is 50-80%.

By the arrangement, in the process of forming the convex teeth through vulcanization, the warp and weft densities of the wear-resistant cloth are combined, so that the wear-resistant cloth is propped open to form gaps, and therefore, when the wear-resistant cloth is used, the inner sides of the cloth and the annular belt blank are in contact with parts, and rubber is in contact with the parts to form better resistance; and, the damage to wear-resisting cloth can be reduced to the common contact for wear-resisting cloth has better life.

More preferably: the glue is sprayed on the outer surface of the annular strip blank, the annular strip blank rotates in the spraying process, and the glue forms an adhesive layer with the thickness smaller than 0.2mm on the surface of the annular strip blank.

So set up, adopt the mode processing viscose layer of spraying, the thickness on reduction viscose layer that can be better, and the thickness on viscose layer is lower, and the connection of vulcanize back wear-resisting cloth and annular belt base is more firm.

More preferably: the weft yarns and the warp yarns of the wear-resistant cloth both adopt core-spun yarns, the core-spun yarns comprise core yarns and covering yarns covering the core yarns, the core yarns are 10-40D spandex yarns, and the covering yarns are 40-80 count cotton yarns.

So set up, the structure of covering yarn makes warp and weft have better elasticity, and the core is made to spandex yarn in addition, can have better elasticity, and with the design of cotton yarn cladding spandex yarn, can ensure the wearability of warp and weft.

More preferably: in the compounding process, a cord is wound on the outer side wall of one of the rubber base layers, and the cord is wound and covered on the rubber base layer to form a tensile layer; wherein, the rubber base layer and the tensile layer are bonded through viscose glue.

So set up, set up the tensile layer that the one deck was walked by the cotton rope winding in multilayer rubber-based layer for the belt can have better structural strength.

Drawings

FIG. 1 is a schematic structural view of the present embodiment;

fig. 2 is a sectional view of the present embodiment, showing a cross-sectional structure of the belt.

In the figure, 100, the belt body; 110. a tensile layer; 120. a rubber base layer; 200. wear-resistant cloth.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

A wear-resistant belt, as shown in fig. 1, comprising a belt body 100 and a wear-resistant cloth 200, wherein the belt body 100 is in a circular ring structure, and the wear-resistant cloth 200 is attached to the inner side wall of the belt body 100.

Referring to fig. 2, the belt body 100 includes a tensile layer 110 and a plurality of rubber base layers 120, in this embodiment, the rubber base layers 120 are four layers as an example, the specific number of layers may be determined according to the requirements of the use parameters of the belt, and different thicknesses and different numbers of rubber base layers 120 may be selected.

The tensile layer 110 is located between the two rubber base layers 120, the two rubber base layers 120 are arranged outside the tensile layer 110, and the two rubber base layers 120 are arranged inside the tensile layer 110. The tensile layer 110 is formed by spirally winding a cord along the axial direction of the belt body 100, and the cord in this embodiment is a high modulus low shrinkage dip polyester hard cord.

The rubber base layers 120 and the tensile layer 110 and the rubber base layer 120 are bonded by adhesives, and the specific adhesives are conventional in the art and therefore are not specifically described in this embodiment.

An adhesive layer is disposed on the inner side of the innermost rubber base layer 120, and the wear-resistant cloth 200 is adhered to the belt body 100 through the adhesive layer. The warp of the wear-resistant cloth 200 is parallel to the axial lead of the belt body 100, the latitudinal stretch rate of the wear-resistant cloth 200 is greater than or equal to 250%, the radial stretch rate is greater than or equal to 150%, preferably, the latitudinal stretch rate of the wear-resistant cloth 200 is greater than or equal to 300%, and the radial stretch rate is greater than or equal to 200%.

Annular convex teeth are formed on the side wall of the inner ring of the belt body 100 through vulcanization, every two adjacent annular convex teeth are corrugated, the wear-resistant cloth 200 is attached to the annular convex teeth, and 0.2-0.6 of the thickness of the wear-resistant cloth 200 is embedded into the belt body 100 under the vulcanization effect, the thickness of the wear-resistant cloth 200 can be determined according to the thickness of the wear-resistant cloth 200, the embedded thickness is preferably 0.2-0.4 when the thickness is thin, the embedded thickness is preferably 0.3-0.6 when the thickness is thick, and the thickness is specifically determined according to the thickness of the wear-resistant cloth 200.

In addition, the wear-resistant cloth 200 is embedded into the outer side wall of the transmission belt cylinder in a grid shape, and the coverage rate of the wear-resistant cloth 200 on the outer side wall of the transmission belt cylinder is 50-80%.

The weave structure of the wear-resistant cloth 200 is plain weave fabric, the weft yarns and the warp yarns of the wear-resistant cloth 200 are all core-spun yarns, each core-spun yarn comprises a core yarn and a cladding yarn, the cladding yarns are wrapped outside the core yarns, the core yarns are 10-40D spandex yarns, and the cladding yarns are 40-80 cotton yarns.

A production process of a wear-resistant belt comprises the following steps:

s1, compounding multiple rubber base layers 120 into an annular belt blank, in the compounding process, a cord is wound on the outer side wall of one of the rubber base layers 120, the cord is wound on the rubber base layer 120 along the axial direction of the rubber base layer 120, and a tensile layer 110 is formed on the rubber base layer 120 by winding and covering.

The rubber base layers 120 and the tensile layers 110 are bonded by viscose glue, and the cord is wound on the rubber base layers 120 after passing through the viscose glue.

And S2, gluing, namely coating glue on the outer surface of the annular belt blank after compounding, spraying the glue on the outer surface of the annular belt blank, rotating the annular belt blank in the spraying process, and forming a glue layer with the thickness of less than 0.2mm on the surface of the annular belt blank by the glue.

And S3, cloth sticking, wherein a layer of wear-resistant cloth 200 is bonded on the outer surface of the annular belt blank coated with glue, the wear-resistant cloth 200 is a cylindrical plain cloth which can be integrally woven and formed in a cylindrical manner or formed by sewing and connecting two ends of a plane cloth, and the cloth sticking is specifically determined according to the parameter requirement of the wear-resistant cloth 200, the parameter of the belt and the cost requirement.

S4, vulcanizing, namely putting the annular belt blank adhered with the wear-resistant cloth 200 into a vulcanizing mold, forming a plurality of annular convex teeth on the outer surface of the annular belt blank through high temperature and high pressure of vulcanization in the vulcanizing process, controlling pressure in the vulcanizing process to enable 0.2-0.6 of the thickness of the wear-resistant cloth 200 to be embedded into the outer side wall of the transmission belt drum, stretching the wear-resistant cloth 200 in the convex tooth forming process to form a gap, and forming the transmission belt drum after vulcanization is completed.

S5, cutting, namely cutting the vulcanized transmission belt drum according to the width of the belt;

and S6, turning, namely turning the inner side and the outer side of the cut belt, wherein the side where the wear-resistant cloth 200 is located is used as the inner side of the belt.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.