Device for improving extrusion width difference of two sidewalls

Abstract

The utility model discloses a double-sidewall extrusion width difference improving device which comprises a compression roller mechanism and a detection mechanism, the detection mechanism is used for detecting the extrusion width of double sidewalls, the compression roller mechanism is located above the sidewalls, and the distance between the compression roller mechanism and the sidewalls is adjustable. The width of the sidewall is adjusted according to the detection result of the width of the two sidewalls by the detection mechanism, so that the width difference of the two sidewalls is reduced; the compression roller mechanism and the detection mechanism are arranged, the detection mechanism is used for detecting the widths of the two tire sidewalls extruded from the extruder, and the compression roller mechanism is controlled to roll the tire sidewall with larger width according to the width difference between the two tire sidewalls so as to reduce the width, so that the extrusion width difference between the two tire sidewalls is effectively improved, the defective product return rate is reduced, and the production efficiency is improved. The purposes of improving the production efficiency and the quality of finished tires are achieved, and meanwhile the production cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to press out the side process and equipment technical field, concretely relates to a double strip side press out width difference improvement device. BACKGROUND

[0002] The side as important rubber part in load tire, extrudes and forms through press out production line. The current side production is in the form of double strip extrusion simultaneously, and the side double strip extrusion improves production efficiency, but the side width value often appears difference because of the influence of factors such as the width of rubber sheet supplied by extruder, thickness and rubber blocking, rubber shortage during extrusion process, and the width value cannot reach the requirement of technical standard.

[0003] The width value of single side of load tire is large, and the supply amount of rubber required by extruder during production process is large, so the stability of rubber supply is required higher. When the width or thickness of rubber supply by extruder is unstable or abnormal, the internal pressure of extruder will change, causing the width fluctuation of extruded side and the difference of width value of two sides. SUMMARY

[0004] In view of the defects of the prior art, the double strip side press out width difference improvement device is provided to solve the problem that the internal pressure of extruder changes when the width or thickness of rubber supply by extruder is unstable or abnormal, causing the width fluctuation of extruded side and the difference of width value of two sides.

[0005] To achieve the above purpose, the utility model provides the following technology to achieve:

[0006] A double strip side press out width difference improvement device, which comprises a pressure roller mechanism and a detection mechanism, the detection mechanism is used for detecting the press out width of the double strip side, and the pressure roller mechanism is located above the side and the distance between the pressure roller mechanism and the side is adjustable, so as to adjust the width of the side according to the detection result of the detection mechanism on the width of the double strip side, thereby reducing the width difference of the double strip side.

[0007] Further, the detection mechanism comprises a front width detection mechanism, the pressure roller mechanism is located on the side away from the extruder, and the front width detection mechanism and the pressure roller mechanism are respectively connected with the host signal.

[0008] Further, the pressure roller mechanism comprises pressure rollers located above the left and right sides respectively, and the left pressure roller or the right pressure roller presses down the side according to the detection result of the front width detection mechanism to reduce the width difference of the double strip side.

[0009] Further, the detection mechanism further comprises a rear width detection mechanism connected with the host signal, the pressure roller mechanism is located between the front width detection mechanism and the rear width detection mechanism, and the rear width detection mechanism detects the side adjusted by the pressure roller mechanism.

[0010] Further, the first driving mechanism driving the sidewall conveying linkage line is connected with the main machine signal, the main machine controls the first driving mechanism to adjust the linkage line speed according to the detection result of the front width measuring mechanism, so that at least one of the extruded double sidewalls is located in the standard width range.

[0011] Further, the second driving mechanism and the pressure sensor are arranged in the head of the extruder, and the second driving mechanism and the pressure sensor are respectively connected with the main machine signal, and the main machine controls the second driving mechanism to adjust the rotating speed of the extruder so that the pressure value detected by the pressure sensor is located in the standard pressure value range.

[0012] Further, the pressure roller mechanism further comprises a pneumatic cylinder, both ends of the pressure roller are respectively connected to the telescopic ends of the pneumatic cylinder, and the pneumatic cylinder is fixed on the support and connected with the main machine signal to drive the pressure roller to press down the sidewall.

[0013] Compared with the prior art, the comprehensive effect brought by the utility model includes:

[0014] By arranging the pressure roller mechanism and the detection mechanism, the detection mechanism detects the width of the two sidewalls extruded from the extruder, and controls the pressure roller mechanism to roll the sidewall with larger width to reduce the width, thereby effectively improving the width difference of the two sidewalls, reducing the return rate of defective products, achieving the purpose of improving production efficiency and product quality, and reducing production cost. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is a whole structure layout schematic view of the utility model embodiment;

[0016] Fig. 2 It is a detection mechanism structure schematic view of the utility model embodiment;

[0017] Fig. 3 It is a pressure roller mechanism structure schematic view of the utility model embodiment.

[0018] Legend: 1, pneumatic cylinder; 2, support; 3, pressure roller; 4, rear width measuring mechanism; 5, pressure roller mechanism; 6, linkage line; 7, front width measuring mechanism. DETAILED DESCRIPTION

[0019] The technical scheme in the utility model embodiments will be clearly and completely described below with reference to the drawings, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor are within the protection scope of the utility model.

[0020] In this document, terms such as “up,” “down,” “left,” “right,” and “top” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] like Figs. 1 to 3 As shown, a device for improving the difference in the width of two tire sidewalls includes a pressure roller mechanism 5 and a detection mechanism. The detection mechanism is used to detect the width of the two tire sidewalls. The pressure roller mechanism 5 is located above the tire sidewall and the distance between it and the tire sidewall is adjustable, so as to adjust the width of the tire sidewall according to the detection result of the detection mechanism on the width of the two tire sidewalls, thereby reducing the difference in the width of the two tire sidewalls.

[0022] By setting up a pressure roller mechanism 5 and a detection mechanism, the detection mechanism detects the width of the two tire sidewalls extruded from the extruder, and controls the pressure roller mechanism 5 to roll the wider tire sidewall according to the width difference between the two tire sidewalls to reduce the width, thereby effectively improving the width difference between the two tire sidewalls, reducing the return rate of defective products, achieving the goal of improving production efficiency and the quality of finished tires, while reducing production costs.

[0023] Specifically, in this embodiment, the pressure roller mechanism 5 is controlled by the host program and can automatically adjust the tire sidewalls for different specifications and different width differences: the pressure roller mechanism 5 rolls the tire sidewalls to make them slightly stretched, thereby narrowing the tire sidewall width; the width of the rolled tire sidewall can be consistent with that of the other qualified tire sidewall, thus solving the problem of the difference in width between the two tire sidewalls.

[0024] In the dual-side extrusion width difference improvement device of this embodiment, the detection mechanism includes a front width measuring mechanism 7, and the pressure roller mechanism 5 is located on the side of the front width measuring mechanism 7 away from the extruder. The front width measuring mechanism 7 and the pressure roller mechanism 5 are respectively connected to the main unit signal.

[0025] The front width measuring mechanism 7 is set up to detect the tire sidewalls extruded from the extruder. When the difference between the two tire sidewalls is too large, the pressure roller mechanism 5 presses down on the single tire sidewall that exceeds the width standard, so that the width of the pressed tire sidewall is reduced and the difference between the two tire sidewalls meets the standard requirements.

[0026] Specifically, the step sequence of the pressing roller mechanism 5 is as follows: the extruder extrudes two strips of sidewalls and delivers them to below the front width measuring mechanism 7, the front width measuring mechanism 7 respectively measures the width of the single strip of sidewall in real time, and the measured width value is transmitted to the host system in real time; the host program is associated with the front width measuring mechanism 7 and the pressing roller mechanism 5, when the front width measuring mechanism 7 detects that the width values of the left and right strips of sidewall appear different during normal production process, the host program starts the pressing roller mechanism 5 to automatically mechanically intervene in the width of the sidewall, the host program automatically identifies the left and right sidewall width values measured by the width measuring instrument in the front width measuring mechanism 7 in real time, and takes the sidewall of one side A which is closest to the standard value of "sidewall width" set in the host program as the adjustment reference, and the host program starts the pressing roller mechanism 5 to adjust the sidewall of side B.

[0027] Preferably, the lower threshold value and the upper threshold value of the width difference between the two sides are set, when the width difference is between the lower threshold value and the upper threshold value, the host controls the pressing roller mechanism 5 to adjust the pressing roller, when the width difference is too large and greater than the upper threshold value, it is determined that an abnormal situation occurs, and the host stops adjusting.

[0028] In order to determine whether the roller pressing adjustment of the pressing roller mechanism 5 to the sidewall meets the requirements, in the double-strip sidewall extrusion width difference improvement device of the embodiment, the detection mechanism further comprises a rear width measuring mechanism 4 connected with the host signal, the pressing roller mechanism 5 is located between the front width measuring mechanism 7 and the rear width measuring mechanism 4, and the rear width measuring mechanism 4 detects the sidewall adjusted by the pressing roller mechanism 5.

[0029] The rear width measuring mechanism 4 located at the rear side of the pressing roller mechanism 5 detects the width of the sidewall pressed by the pressing roller mechanism 5 again: the rear width measuring mechanism 4 measures the width value of side B in real time and feeds back to the host program, the host program further adjusts the pressure of the pressing roller mechanism 5 according to the width difference change to form a closed loop control, and when the rear width measuring mechanism 4 detects that the width difference values of the left and right sidewalls are within the lower threshold value, the host program stops the pressing roller action.

[0030] In the double-strip sidewall extrusion width difference improvement device of the embodiment, the pressing roller mechanism 5 comprises pressing rollers 3 respectively located above the left and right strips of sidewall, and the left or right pressing roller 3 presses the sidewall according to the detection result of the front width measuring mechanism 7 to reduce the width difference between the two strips of sidewall.

[0031] Specifically, the pressing roller mechanism 5 further comprises a pneumatic cylinder 1, both ends of the pressing roller 3 are connected to the telescopic ends of the pneumatic cylinder 1 respectively, the pneumatic cylinder 1 is fixed on the support 2 and connected with the main machine signal to elongate and drive the pressing roller 3 to press down the sidewall, the left and right pressing rollers 3 in the pressing roller mechanism 5 are free rollers and are located above the sidewall respectively, the lower part of the left and right pressing rollers 3 corresponding to the sidewall is a certain length of suspension, when the main machine program determines that the difference value of the B-side width and the A-side width is between the upper and lower threshold values, the main machine program starts the pressing roller mechanism 5, the B-side pressing roller 3 falls to the upper surface of the sidewall, and the pressing roller 3 rolls to stretch the sidewall to reduce the width.

[0032] Preferably, the main machine program automatically adjusts the pressing force of the pressing roller 3 according to different width difference values, and realizes that the A-side and B-side sidewall widths have no difference value through pressing down the B-side sidewall.

[0033] In the double-sidewall width difference improvement device of the embodiment, the first driving mechanism driving the sidewall conveying linkage line 6 is connected with the main machine signal, and the main machine controls the first driving mechanism to adjust the speed of the linkage line 6 according to the detection result of the front width measuring mechanism 7 so that at least one of the pressed double sidewalls is within the standard width range.

[0034] The first driving mechanism is set to be linked with the front width measuring mechanism 7, the stretching degree of the sidewall is changed by adjusting the speed of the linkage line 6 to adjust the sidewall width, the width of the double sidewalls is preliminarily adjusted and corrected, and the width difference between the two sidewalls is adjusted subsequently.

[0035] Specifically, a single sidewall width value “sidewall standard width” is set in the main machine system, the width standard value that needs to be controlled after the production specification sidewall is extruded is set as the “sidewall standard width” in the program; during the normal production process of the sidewall, after the double sidewalls extruded by the pressing machine are detected by the front width measuring instrument, the front width measuring mechanism 7 feeds back the measured value to the main machine program in real time.

[0036] Further, a standard range corresponding to the “sidewall standard width” is set, when the widths of the double sidewalls both exceed the standard range, the main machine controls the first driving mechanism to adjust the speed of the linkage line 6 to adjust the sidewall width, so that the sidewall width meets the standard requirement, after the speed of the linkage line 6 is quickly adjusted by the main machine program, in cooperation with the front width measuring mechanism 7, at least one of the sidewall width values of the two sidewalls is within the standard range after the two sidewalls are continuously measured by the front width measuring mechanism 7, and the main machine program automatically closes the speed adjustment of the linkage line 6.

[0037] Preferably, the standard range is further refined, and multiple levels are divided according to the error size of the measured width value and the standard value, to form a tire side width unqualified level, and the corresponding speed adjustment level is set for the width unqualified level to form the speed adjustment level, and the adjustment efficiency is improved: when the double tire side width exceeds the standard range, the host program recognizes a single tire side and confirms the "width unqualified level" to which the single tire side width value belongs, and then the host determines the acceleration or deceleration value according to the "speed adjustment level" corresponding to the "width unqualified level", and adjusts the speed of the linkage line 6 through the first driving mechanism, so that the tire side width meets the standard requirements.

[0038] In the double-tire-side extrusion width difference improvement device of the embodiment, a second driving mechanism and a pressure sensor are arranged in the head of the extruder, and the second driving mechanism and the pressure sensor are respectively connected with the host signal, and the host controls the second driving mechanism to adjust the extruder speed so that the head pressure value detected by the pressure sensor is within the standard pressure value range.

[0039] The above arrangement realizes automatic adjustment of the extruder head pressure, so as to change the extruded tire side width during production, facilitate control of the tire side width, and improve the accuracy and efficiency of the tire side width adjustment in combination with the speed adjustment of the linkage line 6 and the adjustment of the compression roller mechanism 5.

[0040] Specifically, the extruder head has a pressure sensor for measuring the pressure of the rubber material, and the extruder speed value and the pressure sensor pressure value are connected with the host system and recorded and saved; during normal production of the tire side, when the tire side width value measured by the front width measuring structure 2 is within the standard range and the pressure value in the extruder head is also stable at a value, and the tire side width value and the head pressure value do not change within a certain time, the host system automatically records and saves the head pressure value and the extruder speed value, and at this time, the extruder speed and the head pressure value are stable within an interval.

[0041] When the head pressure changes during production, the host system automatically adjusts the extruder speed according to the actual pressure value and the stable state pressure value.

[0042] In the utility model, unless another definite provision and limitation, the terms "installation", "arrangement", "connection", "fix", "rotation" and so on terms should make broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electric connection;Can be direct connection, also can pass through intermediate medium indirectly connects, can be two element inside's intercommunication or two element's mutual action relation, unless another definite limitation, for the ordinary skilled in the art, can understand the concrete meaning of above-mentioned terms in the utility model according to specific circumstances.

[0043] Although the embodiments of the present application have been shown and described in detail, those skilled in the art can understand that various changes, modifications, replacements and transformations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A device for improving the difference in extrusion width of dual sidewalls, characterized by, The invention relates to a double-tread sidewall extruding device, which comprises a pressure roller mechanism and a detection mechanism for detecting the width of the double-tread sidewall, wherein the pressure roller mechanism is located above the sidewall and the distance between the pressure roller mechanism and the sidewall is adjustable, so that the width of the sidewall is adjusted according to the detection result of the detection mechanism to reduce the width difference of the double-tread sidewall. The detection mechanism comprises a front width detection mechanism, and the pressure roller mechanism is located on the side of the front width detection mechanism away from the extruder, wherein the front width detection mechanism and the pressure roller mechanism are connected to the host signal respectively. The detection mechanism further comprises a rear width detection mechanism connected to the host signal, and the pressure roller mechanism is located between the front width detection mechanism and the rear width detection mechanism, wherein the rear width detection mechanism detects the sidewall after being adjusted by the pressure roller mechanism. The first driving mechanism for driving the sidewall conveying linkage line is connected to the host signal, and the host controls the first driving mechanism to adjust the speed of the linkage line according to the detection result of the front width detection mechanism, so that at least one of the double-tread sidewalls is within the standard width range.

2. The device for improving difference in extrusion width of dual-furrow side, according to claim 1, wherein The pressure roller mechanism comprises pressure rollers located above the left and right sidewalls respectively, and the left pressure roller or the right pressure roller presses the sidewall according to the detection result of the front width detection mechanism to reduce the width difference of the double-tread sidewall.

3. The dual-fort tread width difference improvement apparatus according to claim 2, characterized by The second driving mechanism and the pressure sensor are arranged in the head of the extruder, and the second driving mechanism and the pressure sensor are connected to the host signal respectively, wherein the host controls the second driving mechanism to adjust the rotating speed of the extruder so that the pressure value detected by the pressure sensor is within the standard pressure value range.

4. The dual-fort tread width difference improvement apparatus according to claim 2, characterized by The pressure roller mechanism further comprises a pneumatic cylinder, and the two ends of the pressure roller are connected to the telescopic ends of the pneumatic cylinder respectively, wherein the pneumatic cylinder is fixed on a support and connected to the host signal to extend and drive the pressure roller to press the sidewall.

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