CN-119369690-B - Control method for extrusion dimensional stability of tire rubber component

CN119369690BCN 119369690 BCN119369690 BCN 119369690BCN-119369690-B

Abstract

The invention provides a control method for the extrusion dimensional stability of a tire rubber component, which comprises the steps that rubber materials enter a four-section shrinkage roller way after being extruded from an extruder, the running speed of the four-section shrinkage roller way is gradually reduced, the width and the weight of the rubber component are measured and monitored through a front end measuring section, the rubber component meeting the range enters a cooling water blowing section through an ascending conveyor belt section, then enters a descending water blowing section and a rear end measuring section through a descending conveyor belt section in sequence, the rubber component meeting the range is cut and coiled after being conveyed through a coiling conveyor belt section, floating rollers are arranged between the front end measuring section and the ascending conveyor belt section, between the ascending conveyor belt section and the cooling water blowing section and between the cooling water blowing section and the descending conveyor belt section, and the floating rollers are used for controlling the speed difference of the rubber component passing through the front section and the rear section, so that the dimensional stability of the rubber component is improved, the yield is improved, and the material waste and the production cost are reduced.

Inventors

QU XIAOFENG
ZHANG YANJUN
ZHU JINXIAN
JIANG WENFENG
YANG LIU
LIU XINXIN
Song xingda

Assignees

浦林成山（山东）轮胎有限公司

Dates

Publication Date: 20260512
Application Date: 20241212

Claims (4)

1. The method for controlling the extrusion dimensional stability of the tire rubber component is characterized by comprising the following steps: s1, automatically acquiring process parameters according to a production plan and a history adjustment record, and transmitting the process parameters to a main control console, wherein the main control console adjusts related parameters according to the types of the sizing materials; S2, extruding the sizing material from an extruder, and then entering a four-section shrinkage roller way, wherein the running speed of the four-section shrinkage roller way is gradually reduced; S3, measuring and monitoring the width and the weight of the glue parts through a front end measuring section of the glue parts after the four sections of the shrinkage roller tables shrink; s4, the glue parts conforming to the set range enter a cooling water blowing section through an ascending conveyor belt section, then enter a lower water blowing section and a rear end measuring section through a descending conveyor belt section in sequence, the rear end measuring section carries out secondary measurement on the cooled and shaped glue parts, and feeds back measurement results to a main control console to judge whether the extrusion size of the glue parts exceeds a standard tolerance; If the fine adjustment still cannot meet the standard tolerance, automatically recording manual intervention parameters after the main control console feeds back; s5, cutting and coiling the glue parts which accord with a set range after being conveyed by a coiling conveyor belt section; The device comprises a front end measuring section, an ascending conveyor belt section, a cooling water blowing section, a coiling conveyor belt section, a main control console, a glue component and a coiling conveyor belt section, wherein floating rollers are arranged between the front end measuring section and the ascending conveyor belt section, between the ascending conveyor belt section and the cooling water blowing section, between the cooling water blowing section and the descending conveyor belt section, and between the rear end measuring section and the coiling conveyor belt section, the floating rollers are in signal connection with the main control console through an angular displacement sensor and are used for controlling the speed difference of the glue component passing through the front section and the rear section; The method comprises the steps of making a fixed-length mark on a glue component, measuring the contraction length of the glue component after the glue component passes through S1 to S3, and determining the contraction speed proportion of a contraction roller way according to the contraction length, wherein the contraction speed proportion is 8% -10%, the side edge of a floating roller is provided with an angular displacement sensor, the angular displacement sensor transmits a monitored signal of the position change of the floating roller to a main control console, and the main control console adjusts the speed of each section of the floating roller according to the signal to ensure the speed synchronization of each section of the floating roller; After the extrusion size of the rubber component exceeds the standard tolerance, the main control console finely adjusts the screw rotating speed and the linear speed of the extruder and the shrinkage speed proportion, the fine adjustment amplitude of the screw rotating speed is +/-1 r/min, the fine adjustment amplitude of the linear speed is +/-3 m/min, and the fine adjustment amplitude of the shrinkage speed proportion is +/-0.5%.
2. A method for controlling the dimensional stability of the extrusion of tyre components according to claim 1, wherein each segment of said shrink roller way is composed of a plurality of rollers, the diameters of which decrease progressively from front to back.
3. A method of controlling the extrusion dimensional stability of a tire rubber component according to claim 1, wherein said standard tolerance is 0.3mm thickness, 3mm width, 3% weight of said rubber component.
4. The method for controlling the extrusion dimensional stability of a tire rubber component according to claim 1, wherein the front end measuring section and the rear end measuring section respectively measure and monitor the weight and the width of the rubber component by using a continuous scale and a width measuring camera, the continuous scale and the width measuring camera are in signal connection with the main control console, and the main control console adjusts the extrusion weight and the width of the rubber component according to signals transmitted by the continuous scale and the measuring camera.

Description

Control method for extrusion dimensional stability of tire rubber component Technical Field The invention relates to the technical field of tire production, in particular to a method for controlling the extrusion dimensional stability of a tire rubber component. Background In the current tire production process, the extrusion dimensional stability of the rubber component is mainly realized by manually adjusting the extrusion line speed of the rubber component. Although these methods can ensure dimensional stability of the extruded product to some extent, the following problems remain: First, shrinkage is uneven, namely, the shrinkage of the adhesive part is uneven in the extrusion process due to inaccurate process control, so that the sizes of products are inconsistent. Secondly, the size fluctuation is large, and the prior art is difficult to ensure that the size of each glue part is consistent with the design size, so that the fluctuation of the product size is large. Thirdly, the proportion of waste products is high, a large amount of waste products are caused by dimensional instability, the production cost is increased, and the production efficiency is influenced. Disclosure of Invention The invention aims to solve the defects of the technology and provides a method for controlling the extrusion dimensional stability of a tire rubber component. To this end, the invention provides a method for controlling the dimensional stability of the extrusion of a tyre rubber component, comprising the following steps: s1, extruding sizing materials from an extruder, and then entering a four-section shrinkage roller way, wherein the running speed of the four-section shrinkage roller way is gradually reduced; s2, measuring and monitoring the width and the weight of the glue parts through a front end measuring section of the glue parts after the four sections of the shrinkage roller tables shrink; s3, the glue parts conforming to the set range enter a cooling water blowing section through an ascending conveyor belt section, then enter a lower water blowing section and a rear end measuring section through a descending conveyor belt section in sequence, and are cut and coiled after being conveyed through a coiling conveyor belt section; and floating rollers are arranged between the front end measuring section and the ascending conveyor belt section, between the ascending conveyor belt section and the cooling water blowing section, between the cooling water blowing section and the descending conveyor belt section, and are used for controlling the speed difference of the glue part passing through the front section and the rear section. Preferably, a fixed length mark is made on the glue component, the shrinkage length of the glue component after passing through the S1 to the S3 is measured, and the shrinkage speed proportion of the shrinkage roller way is determined according to the shrinkage length. Preferably, the shrinkage speed ratio is 8% -10%. Preferably, an angular displacement sensor is arranged on the side edge of the floating roller, the angular displacement sensor transmits the monitored signal of the position change of the floating roller to a main control console, and the main control console adjusts the speed of each section of the floating roller according to the signal to ensure the speed synchronization of each section of the floating roller. Preferably, each section of the shrinkage roller way consists of a plurality of rollers, and the diameters of the rollers gradually decrease from front to back. Preferably, after the extrusion size of the glue component exceeds a standard tolerance, the main control console finely adjusts the screw rotating speed and the linear speed of the extruder and the shrinkage speed proportion, the fine adjustment amplitude of the screw rotating speed is +/-1 r/min, the fine adjustment amplitude of the linear speed is +/-3 m/min, and the fine adjustment amplitude of the shrinkage speed proportion is +/-0.5%. Preferably, the standard tolerance is 0.3mm thick, 3mm wide, 3% by weight of the glue part. Preferably, the front end measuring section and the rear end measuring section respectively measure and monitor the weight and the width of the glue component by using a continuous scale and a width measuring camera, the continuous scale and the width measuring camera are connected with the main control console through signals, and the main control console adjusts the pressed weight and the pressed width of the glue component according to the signals transmitted by the continuous scale and the measuring camera. The invention has the beneficial effects that the control method for the extrusion dimensional stability of the tire rubber part has the following beneficial effects. ⑴ The method has the advantages that the stability of the size of the rubber component is improved, the speed of each section before and after the rubber component is kept consistent by the roller diameter propor