Adjustable clamping jaw device for tire bead supporting device of giant tire forming machine

Abstract

The utility model relates to an adjustable clamping jaw device for a tire bead supporting device of a giant tire forming machine, and belongs to the field of tire production equipment. A clamping jaw expansion and contraction hydraulic cylinder is installed on the presetter base, the two ends of the clamping jaw expansion and contraction hydraulic cylinder are hinged to a movable disc and a fixed disc respectively, the fixed disc is connected with the presetter base, six movable disc inclined guide grooves are evenly distributed in the movable disc, and tire bead clamping devices are installed on the movable disc. A tire bead clamping device is fixedly connected with a presetter cylinder connecting seat through a telescopic lever and a guide rod of a presetter cylinder and is in threaded connection with a presetter adjustable support, and the presetter adjustable support is provided with a long hole so that the relative height position of the presetter adjustable support and the presetter cylinder can be adjusted. The presetter guide rail pair and a base of the presetter air cylinder are installed on the fixing disc at the same time and connected with a guide sliding block of a vertical guide groove in the fixing disc through a support, and the presetter adjusting cushion block is installed on a linear bearing of the presetter guide rail pair and connected with a presetter claw piece.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of tire production equipment, in detail is a kind of tire forming machine tire ring support ware adjustable jaw device. BACKGROUND

[0002] It is known that in the field of tire production and manufacturing, the tire production process mainly includes four main links of mixing process, calendering and extruding process, forming process and vulcanization process, and the skeleton material mainly includes steel cord, fiber cord and bead wire, the main function of the bead is to support the carcass layer and strengthen the lower part of the sidewall to facilitate the cooperation of the wheel, to ensure that the tire is firmly fixed on the rim, which bears various interaction forces of the tire and the rim, and plays a crucial role in tire composition bearing. But due to the characteristics of large volume and heavy weight of large engineering radial giant tire products, there are great defects in the design of giant tire bead positioning, and the traditional method adopts fixed positioning method, and due to the weight of single ring reaching 150Kg or more, the bead sinks seriously under the fixed positioning method due to gravity, which leads to serious deviation of the concentricity of the bead and the main drum, resulting in poor positioning accuracy of the bead, poor symmetry of the two sides after the carcass is wrapped, etc. It causes early tire bead separation, bead emptying and other quality accidents caused by insufficient strength of tire body deflection. SUMMARY

[0003] In order to overcome the shortcomings of the prior art, the utility model provides a kind of tire forming machine tire ring support ware adjustable jaw device, guarantee the stability of the concentricity precision of bead and main drum, to solve the problem of poor symmetry of the two sides after the carcass is wrapped, etc. It causes early tire bead separation, bead emptying and other quality accidents caused by insufficient strength of tire body deflection.

[0004] The utility model discloses the technical scheme that solves its technical problem is as follows: a kind of tire forming machine tire ring support ware adjustable jaw device is equipped with preloader base, its characterized in that, preloader base is installed with jaw expansion and contraction hydraulic cylinder, the two ends of jaw expansion and contraction hydraulic cylinder are hinged together with movable disc and fixed disc respectively, fixed disc is connected with preloader base, 6 movable disc oblique guide grooves are evenly distributed on movable disc, and each is installed with 1 set of bead clamping device, bead clamping device is fixedly connected with the extension lever of preloader cylinder and guide rod and preloader cylinder connecting seat respectively and is silk-connected with preloader adjustable support, preloader adjustable support is equipped with long hole, which can adjust the relative height position of preloader adjustable support and preloader cylinder, preloader guide pair and the base of preloader cylinder are installed on fixed disc simultaneously, and are connected with the guide slider of vertical guide groove on fixed disc through support, preloader adjusting pad is installed on the linear bearing of preloader guide pair and is connected with preloader jaw piece, the end of preloader jaw piece is silk-connected with preloader adjustable support, and preloader cylinder position detection switch ab is additionally provided at the limit position of extension and retraction of preloader cylinder.

[0005] The presetter cylinder adopts a guide cylinder, and the extension and retraction of the cylinder rod is controlled by a PLC controller.

[0006] The presetter cylinder position detection switch ab is connected with the PLC controller through a signal line.

[0007] The beneficial effect of the utility model is that the concentricity detection data of the bead presetter and the main drum are combined with the sagging characteristics of the large tire bead size and weight, the bead presetter jaw piece position of the adjustable jaw device of the bead expander of the large tire forming machine is individually fine-tuned, the stability of the concentricity precision of the bead and the main drum is ensured, the problems such as poor symmetry of the two sides after the tire body is wrapped are solved, the early bead off, empty bead and insufficient strength of the tire body skewness of the tire are caused, and the quality accidents such as tire explosion are avoided. BRIEF DESCRIPTION OF DRAWINGS

[0008] The utility model is further described below in combination with the drawings and examples.

[0009] Figure 1 The structure schematic view of the utility model is also a non-working state schematic view.

[0010] Figure 2 It is the presetter extension eccentric state schematic view of the utility model.

[0011] Figure 3 It is the presetter extension concentric adjustment state schematic view of the utility model.

[0012] Figure 4 It is the presetter eccentric state left view of the utility model.

[0013] Figure 5 It is the presetter concentric adjustment state left view of the utility model.

[0014] Figure 6 It is the presetter eccentric state adjustment mechanism enlarged schematic view of the utility model.

[0015] In the drawing, 1 is a presetter base, 2 is a clamping jaw expansion and contraction hydraulic cylinder, 3 is a fixed disc, 4 is a movable disc, 5 is a movable disc inclined guide groove, 6 is a presetter cylinder, 7 is a presetter cylinder connecting seat, 8 is a presetter adjustable support, 9 is a presetter guide rail pair, 10 is a presetter adjustment pad, 11 is a presetter jaw piece, 12 is a presetter cylinder position detection switch ab, 13 is a bead composite part, and 14 is a bead composite part and main drum concentric position offset. DETAILED DESCRIPTION

[0016] In the figure, the utility model is equipped with prepositioner base 1, prepositioner base 1 is installed with clamping jaw expansion and contraction hydraulic cylinder 2, the both ends of clamping jaw expansion and contraction hydraulic cylinder 2 are hinged together with movable disc 4, fixed disc 3, fixed disc 3 is connected with prepositioner base 1, and six movable disc oblique guide grooves 5 are evenly distributed on movable disc 4, and each is installed with a set of tire bead clamping device, under the power action of clamping jaw expansion and contraction hydraulic cylinder 2, six groups of vertical guide grooves and guide sliding blocks are evenly distributed on fixed disc 3, and the guide sliding blocks in the six groups of movable disc oblique guide grooves 5 on movable disc 4 are connected through pin shaft, the fixed disc 3 is fulcrum, the movable disc oblique guide groove 5 is guide, the guide sliding blocks in the vertical guide groove of fixed disc 3 that the guide sliding blocks pin shaft connection of the six groups of movable disc oblique guide grooves 5 on movable disc 4 move under the inclination and diameter change of movable disc oblique guide groove 5, the guide sliding blocks are moved, and six sets of tire bead clamping devices are driven to carry out expansion and contraction action while the movable disc 4 moves in a circle.The tire bead clamping device is composed of prepositioner cylinder 6, prepositioner cylinder connecting seat 7, prepositioner adjustable support 8, prepositioner guide rail pair 9, prepositioner adjusting pad 10 and prepositioner jaw piece 11, the telescopic lever and guide rod of prepositioner cylinder 6 are connected with prepositioner cylinder connecting seat 7 and are fixed with prepositioner adjustable support 8 and carry out silk connection, prepositioner adjustable support 8 is equipped with long hole and can adjust the relative height position of prepositioner adjustable support 8 and prepositioner cylinder 6, prepositioner guide rail pair 9 is installed on fixed disc 3 with the base of prepositioner cylinder 6 simultaneously, and is connected with the guide sliding blocks of vertical guide groove on fixed disc 3 through support, prepositioner adjusting pad 10 is installed on the linear bearing of prepositioner guide rail pair 9 and is connected with prepositioner jaw piece 11, the tail end of prepositioner jaw piece 11 carries out silk connection with prepositioner adjustable support 8, prepositioner cylinder position detection switch ab 12 is additionally arranged at the front and back end extension and retraction limit position of prepositioner cylinder 6, prepositioner cylinder position detection switch ab is connected with PLC controller through signal line, the expansion and contraction of prepositioner cylinder 6 and the power driving effect of clamping jaw expansion and contraction hydraulic cylinder 2 complete the expansion and contraction of tire bead composite 13, and the concentric position offset of tire bead composite and main drum is formed 14.Six sets of tire bead clamping devices can be adjusted separately by increasing or reducing prepositioner adjusting pad and adjusting the position of prepositioner adjustable support and prepositioner jaw piece, by loosening the adjusting silk of prepositioner adjustable support, the thickness of prepositioner adjusting pad is adjusted, the position of prepositioner jaw piece is moved, to adjust to reach the concentric position offset of tire bead composite and main drum ≤ process standard parameter value.Prepositioner cylinder adopts guide cylinder, the telescopic of cylinder rod is controlled by PLC controller, and the cylinder rod drives prepositioner jaw piece to reciprocate along prepositioner guide rail pair.

[0017] The specific adjustment operation is as follows: the operator hoists the bead composite 13 to the bead prepositioner part of the machine table by using a special lifting appliance, operates the prepositioner cylinder 6 to extend the switch, the cylinder rod of the prepositioner cylinder 6 moves under the control of the PLC controller, drives the prepositioner cylinder connecting seat 7, the prepositioner adjustable support 8, the prepositioner adjusting pad 10 and the prepositioner claw piece 11 to move in a straight line in the radial direction of the prepositioner guide rail pair 9, the prepositioner cylinder 6 extends to the position detection switch ab 12 to detect the extension limit signal, and then the claw expansion and contraction hydraulic cylinder 2 moves under the control of the PLC controller, with the fixed disc 3 as the fulcrum and the movable disc inclined guide groove 5 as the guide, pushes the movable disc 4 to move in a circle and drives the six sets of bead clamping devices to expand, expands the bead composite 13, and forms the bead composite and the main drum concentric position offset 14, detects the position of the bead composite 13 with the main drum center, after the detection is completed, the claw expansion and contraction hydraulic cylinder 2 moves under the control of the PLC controller, with the fixed disc 3 as the fulcrum and the movable disc inclined guide groove 5 as the guide, pushes the movable disc 4 to move in a circle and drives the six sets of bead clamping devices to shrink, separates the bead composite 13 from the prepositioner claw piece 11, according to the offset data and the angle, adjusts the loosening of the prepositioner adjustable support 8 adjusting wire, increases or decreases the thickness of the prepositioner adjusting pad 10, drives the prepositioner claw piece 11 to move, when the bead composite and the main drum concentric position offset 14 is less than or equal to the process standard parameter value, tightens the prepositioner adjustable support 8 adjusting wire, and then the claw expansion and contraction hydraulic cylinder 2 moves under the control of the PLC controller, with the fixed disc 3 as the fulcrum and the movable disc inclined guide groove 5 as the guide, pushes the movable disc 4 to move in a circle and drives the six sets of bead clamping devices to expand, expands the bead composite 13, until the bead composite and the main drum concentric position offset 14 is less than or equal to the process standard parameter value, the adjustment is completed, and the normal production state can be converted. By individually fine-tuning the position of the bead prepositioner claw piece 11, the stability of the concentricity precision of the bead and the main drum is ensured, thereby solving the problems of poor symmetry of the two sides of the carcass after the carcass is wrapped, early tire bead separation, bead emptying, insufficient strength of the carcass and other quality accidents.

Claims

1. An adjustable clamping device for a tire bead supporter of a giant tire building machine, provided with a presetter base, characterized in that: A clamping jaw expansion and contraction hydraulic cylinder is installed on the presetter base. The two ends of the clamping jaw expansion and contraction hydraulic cylinder are hinged to the movable plate and the fixed plate respectively. The fixed plate is connected to the presetter base. Six movable plate oblique guide grooves are evenly distributed on the movable plate, and each is equipped with a tire bead clamping device. The tire bead clamping device is connected and fixed to the presetter cylinder connecting seat by the telescopic lever and guide rod of the presetter cylinder and is threaded with the presetter adjustable bracket. The presetter adjustable bracket is provided with a long hole to adjust the relative height position of the presetter adjustable bracket and the presetter cylinder. The presetter guide pair and the base of the presetter cylinder are simultaneously installed on the fixed plate and are connected to the guide slider of the vertical guide groove on the fixed plate through the bracket. The presetter adjustment pad is installed on the linear bearing of the presetter guide pair and connected to the presetter claw piece. The end of the presetter claw piece is threaded with the presetter adjustable bracket, and a presetter cylinder position detection switch ab is added at the extension and retraction limit position of the presetter cylinder.

2. The adjustable clamping device for the tire bead support of the giant tire building machine according to claim 1 is characterized in that The presetter cylinder adopts a guide cylinder, and the extension and contraction of the cylinder rod is controlled by a PLC controller. The cylinder rod pushes the presetter claw piece to reciprocate along the presetter guide rail pair.

3. The adjustable clamping device for the tire bead support of the giant tire building machine according to claim 1 is characterized in that The presetter cylinder position detection switch ab is connected to the PLC controller via a signal line.

Images