阅读说明：本技术 用压延机覆胶的覆胶纤维帘布制造方法 (Method for manufacturing rubber-coated fiber cord fabric coated with rubber by calender ) 是由 丁木 韦进明 尚文艺 李琦 黄艳军 赵亚元 李博宁 于 2020-07-10 设计创作，主要内容包括：本发明涉及一种用压延机覆胶的覆胶纤维帘布制造方法,属于轮胎生产领域。导开的单根纤维帘线分别穿过锭子架前端的小排线窗,再收拢并穿过一个总排线窗,水平地穿过两根导辊,经过整经辊将帘线均匀、平行地排列,通过压力辊均匀、平行地进入四辊压延机的2号辊与3号辊之间的间隙。由四辊压延机的1号辊和2号辊压延的混炼胶片包在2号辊上,由4号辊和3号辊压延的混炼胶片包在3号辊上,包在2号辊和3号辊上的混炼胶片在上述间隙处对全部平行排列的单根纤维帘线进行压延覆胶,形成覆胶纤维帘布。覆胶纤维帘布经过牵引冷却系统牵引并冷却,进入储料系统,从储料系统出来的覆胶纤维帘布通过传送皮带进入卷取系统用垫布卷取。(The invention relates to a method for manufacturing a rubber-coated fiber cord fabric coated with rubber by a calender, belonging to the field of tire production. The single fiber cord led out respectively penetrates through a small winding displacement window at the front end of the spindle frame, then is folded and penetrates through a main winding displacement window, horizontally penetrates through two guide rollers, is uniformly and parallelly arranged through a warping roller, and uniformly and parallelly enters a gap between a No.2 roller and a No.3 roller of a four-roller calender through a pressure roller. The rubber compound rolled by the No.1 roller and the No.2 roller of the four-roller calender is wrapped on the No.2 roller, the rubber compound rolled by the No.4 roller and the No.3 roller is wrapped on the No.3 roller, and the rubber compound wrapped on the No.2 roller and the No.3 roller carries out calendering and rubber coating on all the single fiber cords which are arranged in parallel at the gap to form the rubber coated fiber cord fabric. The rubber-coated fiber cord fabric is drawn by the drawing and cooling system, cooled and enters the storage system, and the rubber-coated fiber cord fabric coming out of the storage system enters the coiling system through the conveying belt and is coiled by the cloth liner.)

1. A method for manufacturing a rubber-coated fiber cord fabric by using a calender is characterized in that a group of spindles rolled by single fiber cords are guided out on a spindle frame with a tension control system, the guided-out single fiber cords respectively pass through a small winding displacement window at the front end of the spindle frame, then are gathered and pass through a main winding displacement window, then all the single fiber cords horizontally pass through two guide rollers, the cords are uniformly and parallelly arranged through a warping roller, then enter a gap between a No.2 roller and a No.3 roller of a four-roller calender through a pressure roller, rubber compound rolled by the No.1 roller and the No.2 roller of the four-roller calender is wrapped on the No.2 roller, rubber compound rolled by the No.4 roller and the No.3 roller is wrapped on the No.3 roller, and the rubber compound wrapped on the No.2 roller and the No.3 roller is used for calendering all the single fiber cords arranged in parallel at the gap to form rubber coating, wherein the single fiber cords have a certain thickness, The rubber-coated fiber cord fabric with the width and the cord density is drawn by a drawing and cooling system, cooled and fed into a storage system, and the rubber-coated fiber cord fabric discharged from the storage system is fed into a coiling system through a conveying belt and coiled by a cloth liner, so that the single fiber cord fabric is coated with rubber by a calender to prepare the rubber-coated fiber cord fabric.

2. The method of claim 1 wherein the cord density of the rubberized fabric is in the range of 4-14 cords/cm, the cord density being determined by the groove density of the warping and pressure rolls.

3. The method for manufacturing the rubberized fiber cord fabric covered by the calender according to claim 1, wherein the thickness of the rubberized fiber cord fabric is 0.8mm-2mm, the thickness of the rubberized fiber cord fabric is determined by a gap between a No.2 roller and a No.3 roller of a four-roller calender, the width of the rubberized fiber cord fabric is 800mm-1500mm, and the width of the rubberized fiber cord fabric is determined by the slotting width of a warping roller and a pressure roller.

4. A method for producing a rubberized fiber cord fabric rubberized by a calender according to claim 1, wherein said single fiber cord is formed by twisting or compositely twisting filaments of aliphatic polyamide, aromatic polyamide or polyester, respectively, and then dipping.

5. A method of manufacturing rubberized fabric according to claim 1, wherein a tension control system is provided between said spindles and the number 3 roll of the four-roll calender, the tension control range being 300 g/root to 2000 g/root.

6. The method for manufacturing rubberized fiber cord fabric covered with calender according to claim 1, wherein a tension control system is provided between the No.3 roller of the four-roller calender and the traction cooling system, and the tension control range is 300 g/root-2000 g/root.

7. The method for manufacturing rubberized fiber cord fabric covered with calender according to claim 1, wherein said drawing cooling system is cooled by cooling water, and the temperature after cooling is not higher than 40 ℃.

8. A method for manufacturing rubberized fiber cord fabric covered with calender according to claim 1, wherein a tension control system is provided between said stock system and said take-up system, and the tension control range is 80 g/cord to 500 g/cord.

9. The method of claim 1 wherein the spindle is located in a spindle house, the temperature and humidity control system is installed in the spindle house, the temperature in the spindle house is at least 3 ℃ higher than the ambient temperature outside the spindle house, and the humidity is less than or equal to 50%.

Technical Field

The invention relates to the field of tire production, in particular to a method for manufacturing a rubber-coated fiber cord fabric coated with rubber by a calender.

Background

As is well known, a rubberized fiber cord fabric refers to a semi-finished product used for manufacturing rubber products such as tires, conveyor belts, and the like, is made of a fiber cord fabric covering compound, and has a certain thickness, width, and cord density. The rubber compound is a mixture with good ductility, which is prepared by mixing and refining natural rubber or synthetic rubber and reinforcing materials, such as carbon black, white carbon black, a vulcanizing agent, a vulcanization accelerator, an anti-aging agent and other raw materials by using rubber mixing equipment such as an internal mixer and the like. The existing manufacturing method of the tire rubber-coated fiber cord fabric comprises the following steps: 1. the equipment adopts a four-roller calender; 2. the material adopts fiber cord fabric with weft yarn and rubber compound; 3. the manufacturing main process comprises the following steps: a fiber cord fabric with weft yarns is guided to be opened on a reel guide-opening station, enters a material storage mechanism, is dried through a group of drying rollers, then enters a position between a No.2 roller and a No.3 roller of a calendering host machine, rubber compound conveyed by rubber supply equipment is rolled through the No.1 roller and the No.2 roller and is supplied with rubber sheets, the No.3 roller and the No.4 roller are used for calendering and supplying lower rubber sheets, the upper rubber sheets and the lower rubber sheets are pressed and covered in gaps and upper and lower surfaces of the fiber cord fabric when the fiber cord fabric passes through a gap between the No.2 roller and the No.3 roller, the rubber-coated fiber cord fabric is drawn by a cooling and drawing system, is cooled through a group of cooling rollers, and the cooled rubber-coated fiber cord fabric is isolated by a backing fabric for reeling. The cord fabric manufactured by the method can meet the manufacturing requirements of common tires. However, the rubber-coated fiber cord fabric manufactured by the method has the problems of high cord density at both ends and low intermediate density in the case of an ultra-high performance tire.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides a method for manufacturing a rubberized fiber cord fabric by using a calender to coat the rubber, which improves the cord density uniformity of the rubberized fiber cord fabric and meets the manufacturing requirement of an ultrahigh-performance tire.

The technical scheme adopted by the invention for solving the technical problems is as follows: a method for manufacturing a rubber-coated fiber cord fabric by using a calender is characterized in that a group of spindles rolled by single fiber cords are guided out on a spindle frame with a tension control system, the guided-out single fiber cords respectively pass through a small winding displacement window at the front end of the spindle frame, then are gathered and pass through a main winding displacement window, then all the single fiber cords horizontally pass through two guide rollers, the cords are uniformly and parallelly arranged through a warping roller, then enter a gap between a No.2 roller and a No.3 roller of a four-roller calender through a pressure roller, rubber compound rolled by the No.1 roller and the No.2 roller of the four-roller calender is wrapped on the No.2 roller, rubber compound rolled by the No.4 roller and the No.3 roller is wrapped on the No.3 roller, and the rubber compound wrapped on the No.2 roller and the No.3 roller is used for calendering all the single fiber cords arranged in parallel at the gap to form rubber coating, wherein the single fiber cords have a certain thickness, The rubber-coated fiber cord fabric with the width and the cord density is drawn by a drawing and cooling system, cooled and fed into a storage system, and the rubber-coated fiber cord fabric discharged from the storage system is fed into a coiling system through a conveying belt and coiled by a cloth liner, so that the single fiber cord fabric is coated with rubber by a calender to prepare the rubber-coated fiber cord fabric.

The invention can also be realized by the following measures:

the cord density range of the rubberized fiber cord fabric is 4-14 cord densities, and the cord density is determined by the winding displacement groove density of a warping roller and a pressure roller.

The thickness range of the rubber-coated fiber cord fabric is 0.8mm-2mm, the thickness of the rubber-coated fiber cord fabric is determined by a gap between a No.2 roller and a No.3 roller of a four-roller calender, the width range of the rubber-coated fiber cord fabric is 800mm-1500mm, and the width of the rubber-coated fiber cord fabric is determined by the slotting width of a warping roller and a pressure roller.

The single fiber cord is formed by respectively twisting or compositely twisting and then dipping the filaments of aliphatic polyamide or aromatic polyamide or polyester.

A tension control system is arranged between the spindle and the No.3 roller of the four-roller calender, and the tension control range is 300 g/roller-2000 g/roller.

A tension control system is arranged between the No.3 roller of the four-roller calender and the traction cooling system, and the tension control range is 300-2000 g/roller.

The traction cooling system is cooled by cooling water, and the temperature after cooling is not higher than 40 ℃.

And a tension control system is arranged between the material storage system and the coiling system, and the tension control range is 80-500 g/root.

The spindle is positioned in the spindle room, a temperature and humidity control system is arranged in the spindle room, the temperature in the spindle room is at least 3 ℃ higher than the ambient temperature outside the spindle room, and the humidity is less than or equal to 50%.

The invention has the advantages of solving the problem of uneven density of the tire fiber cord fabric manufactured by the existing method, improving the density uniformity of the tire fiber cord fabric, meeting the manufacturing requirement of the ultrahigh-performance tire and laying a solid foundation for the performance upgrade of the tire.

Drawings

The invention is further illustrated by the following examples in conjunction with the accompanying drawings

FIG. 1 is a schematic view of the manufacturing method of the rubberized fabric of the invention

FIG. 2 is a schematic view of a spindle for winding a single fiber cord onto a paper tube according to the present invention

In the figure, 1, a single fiber cord, 2, a spindle, 3, a spindle frame, 4, a small winding displacement window, 5, a pneumatic brake device, 6, a main winding displacement window, 7, a guide roller, 8, a warping roller, 9, a pressure roller, 10, a glue-coated fiber cord, 11, a traction cooling system, 12, a storage system and 13, a reeling system are arranged.

Detailed Description

The spindle 2, the four-roll calender, the winding system 13 and the like used in the invention are all common equipment in the field, the single fiber cord 1 used is a dipped nylon 66 cord with the specification of 1400dtex/2, the cord is made of nylon 66 fiber filaments through twisting and dipping, and each cord is independently and continuously wound on a cylindrical paper tube to form the spindle 2, and the cord can not have a joint. The rubber compound is prepared by mixing and refining natural rubber, carbon black, an accelerator, a vulcanizing agent, an anti-aging agent and the like through an internal mixer.

The spindle 2 is positioned in a spindle room, the spindle room is provided with a temperature and humidity control system, the temperature is at least 3 ℃ higher than the ambient temperature outside the spindle room, and the humidity is less than or equal to 50%. In the spindle room, 1400 spindles 2 are arranged on two sides of a spindle rack 3, 700 spindles are arranged on each side, and the spindles on each side are arranged in 140 rows of 5 rows. All the single fiber cords 1 are led out from each spindle 2 and collected to a small winding displacement window 4 at the front end of a spindle frame 3 through a guide roller, and each window of the small winding displacement window 4 is provided with a stainless steel roller column in the horizontal direction and the vertical direction. Each spindle 2 is provided with a pneumatic brake device 5, and the braking force is controlled by the same air source. A tension control system is arranged between the spindle 2 and a No.3 roller (NO.3) of the four-roller calender, and the tension control range is 500 g/roller to 700 g/roller. The single fiber cord 1 of the small winding displacement window 4 sequentially passes through a bus winding displacement window 6 for gathering the cord, and each window of the bus winding displacement window 6 is provided with stainless steel rollers in the horizontal direction and the vertical direction. The collected cord threads pass through a window of a spindle house wall, then all the cord threads horizontally pass through two guide rollers 7, are uniformly and parallelly arranged through a warping roller 8, and then downwards bypass a pressure roller 9 to uniformly and parallelly enter a gap between a No.2 roller (NO.2) and a No.3 roller (NO.3) of a four-roller calender. The rubber compound is heated and refined by two open mills and is respectively conveyed to the position between a No.1 roller (NO.1) and a No.2 roller (NO.2) and the position between a No.4 roller (NO.4) and a No.3 roller (NO.3) through two conveyer belts. The rubber compound rolled by the No.1 roller (NO.1) and the No.2 roller (NO.2) is wrapped on the No.2 roller (NO.2), the rubber compound rolled by the No.4 roller (NO.4) and the No.3 roller (NO.3) is wrapped on the No.3 roller (NO.3), the rubber compound wrapped on the No.2 roller (NO.2) and the No.3 roller (NO.3) is used for coating the two sides of all the single fiber cord threads 1 at the gap, and simultaneously, the gap between all the single fiber cord threads 1 is filled to form the rubber-coated fiber cord fabric 10 with the width of 1400mm, the thickness of 1mm and the cord thread density of 10 threads/cm. The rubber-coated fiber cord fabric 10 is drawn and cooled by a drawing and cooling system 11, and a tension control system is arranged between the drawing and cooling system 11 and a calendering roller, wherein the tension control range is 500 g/root-700 g/root; the cooling system adopts 10 cooling rollers, and circulating softened water with the temperature not higher than 30 ℃ is introduced for cooling, so that the rubber-coated fiber cord fabric 10 is cooled to below 40 ℃. The rubberized fiber cord fabric 10 enters a storage system 12 after being cooled for storage before being coiled. The rubberized fabric plies 10 coming out of the stock system 12 are fed to the take-up system 13 by means of a conveyor belt. The polypropylene fiber laying cloth is guided by the guide opening station, enters the cord fabric coiling station and is coiled into a reel together with the rubberized fiber cord fabric 10. A tension control system is arranged between the coiling system and the storage system, the tension control system ensures that the cord fabric is coiled smoothly without folding, and the tension control range is 100 g/root-150 g/root. The curtain cloth coiling adopts an E + L deviation rectifying system to rectify deviation, the deviation rectifying range is less than or equal to 50mm, and the deviation rectifying precision is +/-5 mm.