TW201435229A - Transmission belt structure and curing method thereof - Google Patents

Abstract

The present invention discloses a transmission belt structure and a curing method thereof. The transmission belt structure comprises a base of rubber and at least one tensile member. The base of rubber is a cyclic belt body, and comprises a silicon dioxide filler. The at least one tensile member is covered with the base of the rubber.

Description

Transmission belt structure and vulcanization method thereof

The present invention relates to a transmission belt structure and a vulcanization method thereof, and more particularly to a transmission belt structure made of a filler of ruthenium dioxide as a rubber base and a vulcanization method thereof.

At present, the world is facing the problem of depletion of oil reserves, which in turn leads to high international crude oil prices, and the prices of industrial raw materials related to its derivatives continue to rise.

For the rubber industry, the main raw material of synthetic rubber is butadiene, and butadiene is one of petrochemical-derived raw materials; however, the use of ethane in the Middle East and shale gas in the United States indicates that the amount of light crude oil is gradually increasing. Future trends, therefore, can be expected to significantly reduce butadiene production. As the production of raw materials is reduced, the supply of synthetic rubber is bound to face the problem of insufficient supply. Therefore, for the transmission belt whose main material is synthetic rubber, it is necessary to focus on the improvement of the use of synthetic rubber in the process to overcome the above problems.

In addition, in recent years, the global campaign to promote carbon reduction has been vigorously promoted. In the case of industrial products, in the case of transmission belts, 75% of the transmission belts will cause slack and slip during use, and invisibly cause a large amount of energy consumption during operation, and disguise. To increase carbon emissions; further to the vulcanization molding part of the transmission belt process, the current transmission belts are flat-plate vulcanized molding due to production technology limitations, and the advantages are simple process and low equipment cost. However, its shortcomings are that it is prone to uneven heating and repeated vulcanization or vulcanization in the segmented joint area, which in turn affects the quality of the product and the performance of the product in the future, and is also closely related to energy consumption.

In view of the above problems, the relevant industries of the transmission belt need to invest in research and development on the cost of raw materials and how to save energy, in order to cope with the development trend of the global industry.

In view of the above-mentioned problems of the prior art, the object of the present invention is to provide a transmission belt structure and a vulcanization method thereof to solve the problem of shortage of raw materials, and to obtain better product quality and energy saving and carbon reduction effects.

In accordance with the purpose of the present invention, a drive belt structure is provided that includes a rubber base and at least one core wire; the rubber base is an endless belt and includes a cerium oxide filler; at least one core is wrapped in the rubber base.

Preferably, the belt structure may further comprise a mesh braid covering the outer surface of the rubber base.

Preferably, the rubber base may be a natural rubber base, a synthetic rubber base or a rubber base of a natural rubber hybrid synthetic rubber.

Preferably, the core wire may be a glass fiber core wire.

Preferably, the glass fiber core wire can be a high rigidity glass fiber core wire subjected to a heat curing process.

Preferably, the mesh braid may have a plurality of loop structures, and the plurality of high elastic inlaid yarns are embedded in the plurality of loop structures.

Preferably, the mesh braid may be a warp knit fabric.

Preferably, when the number of the at least one core wire is plural, the annular band body which follows the rubber base penetrates inside and is arranged in parallel with each other in the rubber base.

According to another object of the present invention, a vulcanization method for a belt structure is provided, comprising the steps of: providing a vulcanization module, the vulcanization module comprising a vulcanization cylinder and a positioning cylinder corresponding to the vulcanization cylinder, and placing the transmission belt structure on the vulcanization cylinder and positioning a pressurizing module, the pressurizing module comprises a pressurizing cylinder and a pressure belt, the pressure belt sleeve is placed on the vulcanizing cylinder and the pressure cylinder, and the transmission belt structure is pressed; the heating module is provided, and the heating module is adjacent to the vulcanizing cylinder, And surrounding the vulcanization cylinder; driving the belt structure and the pressure belt by the vulcanization cylinder, the positioning cylinder and the pressure cylinder, and pressurizing the transmission belt structure by the pressure belt pressed on the belt structure, and the transmission belt is driven by the vulcanization cylinder and the heating module The structure is heated to vulcanize the belt structure.

Preferably, the shaft of the vulcanization cylinder further comprises an inlet and outlet, the inlet and outlet are for steam in and out, and the steam provides the heat of heating of the cylinder.

Preferably, the pressing module further comprises a plurality of limiting cylinders, each of the limiting cylinders being pressed against one side of the pressure belt relative to the belt structure.

Preferably, the heating module further comprises a plurality of heating units, and the plurality of heating units are arranged around the vulcanization cylinder.

According to the above, the transmission belt structure and the vulcanization method thereof of the present invention form a transmission belt structure by a rubber base, a high-rigidity glass fiber core wire and a high-flexure mesh braid, so that the carbon emission caused by the invention is smaller than that of the conventional one. The transmission belt is more durable; in the manufacturing process, the transmission belt structure and the pressure belt are rotated by the vulcanization cylinder, the positioning cylinder and the pressure cylinder to vulcanize the transmission belt structure, thereby achieving uniform thickness and internal compactness to improve the operation of the transmission belt. The purpose of stability.

1. . . Transmission belt structure

11. . . Rubber base

12. . . Wire

13. . . Mesh braid

131. . . Loop structure

132. . . High elastic inlay

2. . . Vulcanizing unit

twenty one. . . Vulcanization module

211. . . Vulcanization cylinder

2111. . . import and export

212. . . Positioning cylinder

twenty two. . . Pressurized module

221. . . Pressure cylinder

222. . . Pressure belt

223. . . Limit cylinder

twenty three. . . Heating module

231. . . Heating unit

S21 to S24. . . step

Figure 1 is a schematic view showing the structure of the belt structure of the present invention.
Fig. 2 is a schematic view showing the structure of the mesh knitted fabric of the present invention.
Figure 3 is a schematic view of the vulcanization apparatus of the transmission belt structure of the present invention.
Figure 4 is a flow chart showing the vulcanization of the belt structure of the present invention.

1 and 2, FIG. 1 is a schematic structural view of a transmission belt structure of the present invention; and FIG. 2 is a schematic structural view of a mesh knitted fabric of the present invention. As shown, the belt structure 1 includes a rubber base 11 and at least one core 12, and may further comprise a mesh braid 13; the rubber base 1 is an endless belt and covers at least one core 12, and the core 12 may be made of glass fiber, In the present embodiment, the glass fiber is taken as an example, but not limited thereto, wherein when the number of at least one core wire 12 is plural, The annular belt body which follows the rubber base 11 penetrates inside and is arranged parallel to each other in the rubber base 11; the mesh braid 13 covers the outer surface of the rubber base 11 to play a surrounding function to maintain the transmission belt. Dimensional stability under stress.

More specifically, the rubber base 11 of the present invention is based on natural rubber as a main substrate, and may be blended with synthetic rubber or natural rubber and synthetic rubber, and natural rubber has more properties than synthetic rubber alone. Reduce the carbon emission rate and the advantages of petrochemical resources consumption; because the transmission belt will encounter high temperature, debris (water, mud, sand and gravel) erosion, oil, ozone and other harsh operating conditions in the application environment, these harsh conditions will The service life and performance of the transmission belt have an impact; in addition, in the process of actuation, the transmission belt must be subjected to tension, pressure, bending stress, and the rigidity and holding force must be maintained to maintain the transmission efficiency; therefore, in response to the above-mentioned severe Operating environment and conditions, the present invention uses a ruthenium-based reinforcing material - silica (SiO ₂ ‧ nH ₂ O), as a filler for the rubber base 11, the cerium oxide is also white soot, which has a high modulus, The low heat generation feature provides the low hysteresis necessary for the rubber to operate, thereby improving the transmission capacity and transmission efficiency; and further increasing the proportion of white soot to replace the heat generation. High-carbon soot, which reduces petrochemical resource consumption and carbon emissions to achieve energy-saving and carbon-saving effects; and in addition to maintaining material rigidity to avoid shape deformation, thereby reducing soot consumption and reducing energy consumption, Reduce the accumulated heat during the transmission to extend the service life of the belt structure 1. In the above, the use of ruthenium dioxide as a filler is also suitable for use in conveyor belts, laminating, paste, etc., in order to achieve the effect of reducing hysteresis and heat accumulation.

Next, it is modified with an elastomer such as Epoxidised Natural Rubber (ENR) to improve the affinity between the cerium oxide and the rubber substrate to change its surface properties and dispersibility, and to reduce rubber and filler. The effect of hysteresis loss, as well as reducing the hysteresis loss between rubber and rubber, and improving the bonding strength with glass fiber (or polyester fiber, nylon, aromatic polyamide, etc.), improving the transmission capacity and transmission of the belt The efficiency further improves the wet slip resistance and oil resistance of the rubber substrate. More specifically, in order to further increase the filling amount of the filler such as cerium oxide and the affinity with the rubber base 11, an epoxidized natural rubber may be added.

It is further explained that most of the reasons for the reduction of the transmission efficiency of the transmission belt can be attributed to the occurrence of slippage during the operation, which is mostly caused by the slack of the core wire; therefore, considering factors such as strength, deformation, cost, etc. Polyester fiber is the most acceptable core material, and HMLS polyester fiber is the most suitable, but the creep elongation of HMLS polyester fiber is too high (10~12%). Therefore, in order to effectively improve the problem and take into consideration the material cost, a glass fiber with a low deformation amount is selected as the core material, but not limited thereto. Among them, the glass fiber should be surface-treated, and the environmentally-friendly water-based carboxylated natural rubber latex is used as the main agent, and the water-based glyoxal-urea resin is used to replace the traditional phenolic resin as a hardener, and the interface between the rubber and the core wire is obtained. The strength is above 12 kgf; in addition, the glass fiber core wire must be subjected to a heat curing process to obtain a high-rigidity glass fiber core wire, thereby making the belt less slack.

The mesh braid 13 of the belt, in addition to integrating the components of the belt and providing material rigidity, also plays the role of reducing running noise. Since the mesh braid 13 will be in frictional contact with the pulley, it needs to have good wear resistance. Therefore, it will be mainly woven plain weave during weaving; however, during operation, the belt will bend and flex during operation. At this time, the mesh braid 13 corresponding to the back surface of the belt may cause the belt to be tight due to insufficient ductility, thereby generating a large bending stress, resulting in a loss of operating energy.

In view of the above problems, in order to reduce the bending stress caused by insufficient ductility, the mesh woven fabric 13 of the present invention may be a highly flexible woven fabric (such as an elastic cloth, a wide-angle cloth or a plain woven fabric), which may also be a warp knitting. a wear-resistant fabric of the structure; the high-flexible braid has a plurality of loop structures 131, the loop structure 131 allows the high-flex braid to have good bending ductility to reduce bending stress, and the high-flex braid has both The invention is characterized in that the wear-resistant is not easy to crack and the interlocking connection between the rubber and the fabric interface is enhanced; at the same time, the plurality of high-elastic mosaics 132 are embedded in the plurality of loop structures 131, thereby maintaining the size of the belt under stress. Stability, which in turn increases the service life of the belt.

In addition, the transmission belt of the present invention is in line with the goal of green production, and is produced by using raw materials such as natural rubber, cerium oxide and glass fiber, thereby reducing the carbon emissions of raw materials by more than 36% (refer to Table 1, Table 1 is Compared with the materials used in the present invention, the carbon emissions of the materials used in the present invention are reduced from the carbon emissions of conventional materials by 8.02 to 5.11 kg ‧ CO ₂ /kg.

Table 1

Please refer to Figures 3 and 4, Figure 3 is a schematic view of the vulcanization device of the transmission belt structure of the present invention; and Figure 4 is a vulcanization flow chart of the transmission belt structure of the present invention. As shown, the vulcanization device 2 includes a vulcanization module 21, a pressurizing module 22, and a heating module 23; the vulcanization module 21 includes a vulcanization cylinder 211 and a positioning cylinder 212; and the pressurizing module 22 includes a pressurizing cylinder 221 and a pressure. Belt 222.

The vulcanization method of the belt includes the following steps:

In step S21, a vulcanization module is provided. The vulcanization module includes a vulcanization cylinder and a positioning cylinder corresponding to the vulcanization cylinder, and the transmission belt structure including the rubber base, the at least one core wire and the mesh braid is placed on the vulcanization cylinder and the positioning cylinder.

In step S22, a pressurizing module is provided. The pressurizing module comprises a pressurizing cylinder and a pressure belt, and the pressure belt sleeve is placed on the vulcanizing cylinder and the pressure cylinder, and the transmission belt structure is pressed.

In step S23, a heating module is provided, and the heating module is adjacent to the vulcanization cylinder and surrounds the vulcanization cylinder.

In step S24, the transmission belt structure and the pressure belt are rotated by the vulcanization cylinder, the positioning cylinder and the pressure cylinder, and the transmission belt structure is pressurized by the pressure belt pressed onto the transmission belt structure, and the transmission belt is driven by the vulcanization cylinder and the heating module. The structure is heated to vulcanize the belt structure.

As described above, in the embodiment, the center of the vulcanization cylinder 211 further includes an inlet and outlet 2111. The inlet and outlet 2111 are provided for vapor in and out, and the steam provides heat energy of the vulcanizing cylinder 211 so that the vulcanizing cylinder 211 can heat the belt structure 1; The pressure module 22 can further include a plurality of limiting cylinders 223, each of the limiting cylinders 223 is pressed against one side of the pressure belt 222 relative to the cylinder 211, and the limiting cylinder 223 further increases the belt structure 1 and the pressure belt 222. The heating module 23 can be electrically heated, and can also include a plurality of heating units 231. The plurality of heating units 231 are arranged around the vulcanization cylinder 211, and the heating unit 231 can heat the belt structure 1; The transmission belt structure 1 of the invention can be pressurized by a pressure belt 222 and heated by a vulcanization cylinder 211 and a heating module 23 for vulcanization molding.

Conventional use of flat vulcanization molding, which may cause problems such as uneven heating and repeated vulcanization, the side of the transmission belt produced by the device is a continuous plane, and the bending stress increases as the radius of the rotating transmission belt becomes smaller during actual operation. , affecting the performance of the operation. However, the present invention has the advantages of relatively uniform vulcanization pressure and continuous vulcanization by pressurizing the pressure belt and heating by the vulcanization cylinder and the heating module, thereby avoiding the problems encountered in the conventional flat vulcanization molding.

The above is intended to be illustrative only and not limiting. Any equivalent modifications or alterations to the spirit and scope of the invention are intended to be included in the scope of the appended claims.

1. . . Transmission belt structure

11. . . Rubber base

12. . . Wire

13. . . Mesh braid

Claims (12)

A belt structure comprising:
a rubber base which is an endless belt and which comprises a cerium oxide filler; and at least one core wire is wrapped in the rubber base. The belt structure according to claim 1, further comprising a mesh braid covering the outer surface of the rubber base. The belt structure according to claim 1, wherein the rubber base is a natural rubber base, a synthetic rubber base or a rubber base of a natural rubber mixed synthetic rubber. The transmission belt structure of claim 1, wherein the core wire is a glass fiber core wire. The transmission belt structure of claim 4, wherein the glass fiber core is a high-rigidity glass fiber core wire subjected to a heat curing process. The transmission belt structure of claim 1, wherein the mesh braid has a plurality of loop structures, and a plurality of high elastic inlaid yarns are embedded in the plurality of loop structures. The belt structure according to claim 6, wherein the mesh braid is a warp knitted fabric. The transmission belt structure according to claim 1, wherein when the number of the at least one core wire is plural, the annular belt body following the rubber base penetrates inside and is arranged parallel to each other at the rubber base. in. A method of vulcanizing a belt structure comprising the following steps:
Providing a vulcanization module comprising a vulcanization cylinder and a positioning cylinder corresponding to the vulcanization cylinder, and placing the transmission belt structure as described in claim 1 of the patent application in the vulcanization cylinder and the positioning cylinder ;
Providing a pressurizing module, the pressurizing module comprising a pressurizing cylinder and a pressure belt, the pressure belt sleeve being disposed on the vulcanization cylinder and the pressure cylinder, and squeezing the belt structure;
Providing a heating module adjacent to the vulcanization cylinder and surrounding the vulcanization cylinder; and driving the belt structure and the pressure belt by the vulcanization cylinder, the positioning cylinder and the pressure cylinder, and pressing The pressure belt attached to the belt structure pressurizes the belt structure, and the belt structure is heated by the cylinder and the heating module to vulcanize the belt structure. The vulcanization method of the transmission belt structure according to claim 9, wherein the shaft of the vulcanization cylinder further comprises an inlet and outlet for supplying steam to and from the steam, and the steam is provided for heating heat of the cylinder. The method of vulcanizing a transmission belt structure according to claim 9, wherein the pressing module further comprises a plurality of limiting cylinders, each of the limiting cylinders being biased against a side of the pressure belt relative to the belt structure. The method of vulcanizing a transmission belt structure according to claim 9, wherein the heating module further comprises a plurality of heating units, the plurality of heating units being arranged around the vulcanization cylinder.