WO2015007009A1

WO2015007009A1 - Tire blank pressing roller mechanism, as well as device and rolling method using same

Info

Publication number: WO2015007009A1
Application number: PCT/CN2013/082272
Authority: WO
Inventors: 袁仲雪; 武守涛; 张麟; 王永琴; 周鸿莹
Original assignee: Yuan Zhongxue
Priority date: 2013-07-16
Filing date: 2013-08-26
Publication date: 2015-01-22
Also published as: CN103395218A

Abstract

A tire blank pressing roller mechanism, as well as a device and rolling method using the mechanism of the present invention. The tire blank pressing roller mechanism comprises a connection frame, and a roller wheel, a radial driving mechanism, a swinging driving mechanism and a pivot connection piece arranged on the connection frame, wherein the swinging driving mechanism is controlled by a PLC system. The combined pressing roller device using the tire blank pressing roller mechanism is provided with an anti-package pressing roller mechanism, a tread pressing roller mechanism and a tire shoulder pressing roller mechanism used for rolling different regions of a tire blank respectively and executing the rolling operations at the same time. According to the present invention, the rollers do profiled rolling motion along the contour of the tire blank in a servo driving mode controlled by the PLC system, and the rolling quality is improved; furthermore, during the rolling, multiple groups of pressing roller mechanisms run synchronously, and the rolling efficiency is improved.

Description

Tire tire pressure roller mechanism and device using the same and rolling method

Technical field

The present invention relates to a press roll structure and a green tire rolling method used on a tire building machine, and belongs to the field of rubber machinery. Background technique

In the manufacturing process of the existing all-steel meridian and semi-steel car tires, the preform is pressed and formed on the forming drum by a combined rolling device to realize the multi-layer belt structure and the tread and the tire. The fitting of the barrel parts. The quality of the green tire rolling will directly affect the subsequent vulcanization process and tire performance.

1 is a cross-sectional view of a green tire. The currently used structure is a roll of A, B, and C regions of a green tire simultaneously rolled by a plurality of sets of press rolls. As disclosed in the prior patent 200910020251.5, the tire molding machine combined rolling device and the method thereof have a plurality of rolling roller mechanisms for rolling different regions of the green tire, and the specific scheme is: having a frame mounted on the base, The first roller device, the second roller device, the third roller device, and the fourth roller device are respectively coupled to the chassis through respective brackets. Wherein the first roller device rolls the intermediate portion of the tread (A region in FIG. 1), and the second roller device rolls the shoulder portions at both ends of the belt (B region in FIG. 1), and the third roller device is used for The side portion of the roll (the area c in Fig. 1) is rolled, and the fourth roll unit is used to roll the portion from the center of the tread to the shoulder (the left or right half of the A area in Fig. 1 + the C area).

The second roller device has a press roller, a cylinder for driving a press roller to perform a rolling operation, a ball spline, and a driving device for driving the press roller to perform horizontal displacement. The pressure roller adopts a flap structure, and when the pressure roller is pressed to roll the outer conical surface of the shoulder portion, the surface of the plurality of rollers is simultaneously pressed and the shoulder; the gap between the plurality of rollers has a gap-free section to ensure the shoulder along the shoulder. During the outer conical surface rolling process, the multiple rolls are independently and freely stretched.

In the above prior art, the movement of the pressure roller is driven by the cylinder, and when the cylinder is inflated, the intermediate process of the rolling motion is difficult to control. When rolling, especially in the B region where the curvature is large, the glue is easily lost. Or there are bubbles. On the other hand, the living piece structure can ensure that the surface of the roller can be pressed against the surface of the B region, but the full contouring is not performed, which affects the rolling quality; and the living piece structure is complicated to manufacture and has a high cost. Summary of the invention

The tire blank pressing roller mechanism and the device and the rolling method using the same according to the present invention are intended to solve the defects of the prior art mentioned above, and mainly adopt the servo driving method to control the contour of the green tire along the rolling region of the pressing roller. The line is shaped and rolled.

The object of the invention is to improve the rolling quality of the green tire and make the pressing roller perform the contour movement along the contour of the embryo blank. In the one rolling process, the pressure roller can uniformly roll the green embryo to avoid rolling the blank area, The bubbles in the rolling area are completely discharged. The contouring movement of the pressure roller adopts the servo drive controlled by the PLC system, and each point in the motion trajectory curve can be accurately controlled.

Another object of the present invention is to improve the versatility of the apparatus, and to obtain different trajectory curves of the embossing rollers by changing the PLC program, so that it can be applied to the tire rolling operation of tires of different specifications.

It is still another object of the present invention to provide a combined press roll apparatus having a plurality of press roll mechanisms capable of simultaneously rolling different areas of a green tire to improve rolling efficiency.

In order to achieve the above invention, the tire press roll mechanism includes a connecting frame, a roller on the connecting frame, and a driving mechanism for driving the roller to complete the rolling action, which is different from the prior art in that:

The driving mechanism includes a radial driving mechanism for feeding the roller into the rolling station, and a swing driving mechanism for driving the roller to perform a profile rolling motion along the contour of the blank of the rolling region, the swinging Drive mechanism The PLC system controls and is connected to the roller through a pivotal connecting member, and the connecting frame is provided with a radial sliding rail for moving the roller and the swing driving mechanism into and out of the rolling station.

According to the above basic scheme, the driving force provided by the swinging drive mechanism directly acts on the pivotal connecting member, and is converted into the swinging motion of the roller by the pivotal connecting member, and the swinging trajectory of the roller is the same as the contour of the blank in the rolling region. Consistent. The driving force output by the swing drive mechanism is controlled in real time by the PLC system, and this driving force corresponds to the swinging trajectory of the roller. Therefore, the PLC program can be set according to the embryonic outline of the rolling area, thereby controlling the swinging trajectory of the roller and realizing the profile rolling motion.

Further optimizing the above scheme, the radial drive mechanism may employ a cylinder, and the swing drive mechanism may employ a servo electric cylinder.

The invention is directed to the structural improvement of the above-mentioned pressure roller mechanism, and at the same time realizes a new rolling method, which is as follows:

When the rolling operation is carried out, the roller is first fed into the rolling station by the radial driving mechanism, and then the swinging drive mechanism drives the roller to perform the profile rolling motion along the contour of the blank in the rolling area, and the prior art The difference is that: the pendulum drive mechanism is controlled by the PLC system, and the rolling curve can be made according to the contour of the rolling area, thereby controlling each point in the rolling motion.

The tire-studded composite press roller device of the present invention comprises a frame, a tread press roller mechanism provided with a middle portion for rolling a tread, a shoulder shoulder roller body for rolling the shoulder inner side and a sidewall, And a reverse wrapping roller mechanism for rolling both sides of the tread and the shoulder, wherein the reverse wrapping roller mechanism adopts the pressing roller mechanism of the foregoing structure.

Further, the technical solution of the above-mentioned combined press roller device is further optimized, and the reverse wrap roller mechanism, the tread press roller mechanism, and the shoulder press roller mechanism are arranged in space, upper, and lower.

The technical solution of the above combined pressure roller device is further optimized. The frame is provided with two sets of reverse-pressing roller mechanisms and adjusting means for adjusting the lateral spacing between the two sets of reverse-pressing roller mechanisms. The two sets of reverse-pressing roller mechanisms respectively press the corresponding areas on both sides of the green tire, and the lateral distance between the two corresponds to the axial width of the green tire. By adjusting this distance, the tires of different specifications can be adjusted.

The adjusting device can adopt the following structure: including a motor, the output end of the motor is connected with the screw, and two screws are arranged on the lead screw, and the nut is respectively connected with the two sets of reverse-pressing roller mechanisms. Two positions of opposite threads are arranged on the screw bar corresponding to the positions of the two silk cores. When the motor drives the screw to rotate, the two springs are oppositely or relatively displaced by the screw drive, and the lateral distances of the two sets of reverse-pressing roller mechanisms are adjusted. the goal of.

The invention is directed to the structural improvement of the above-mentioned combined pressure roller device, and at the same time realizes a new rolling method, which is as follows:

The tread rolling mechanism, the shoulder rolling mechanism, and the reverse wrapping roller mechanism respectively press different portions of the green tire, the tread rolling mechanism rolls the middle portion of the tread, the shoulder rolling mechanism rolls the inner side of the tire and The sidewall, the reverse wrapping roller mechanism rolls both sides of the tread and the shoulder, the difference from the prior art is:

When the rolling operation is performed, the tread rolling mechanism, the shoulder rolling mechanism, and the reverse wrapping roller mechanism simultaneously operate. In summary, the tire bead pressure roller mechanism and the apparatus and the rolling method using the same according to the present invention have the following advantages and advantageous effects:

1. During the rolling process, the pressure roller performs the profile rolling movement along the contour of the embryo blank, and can uniformly roll the green tire in a rolling process, avoid rolling the blank area, and completely discharge the bubbles in the rolling area, thereby improving Rolling quality.

2. The rolling motion track of the pressure roller can cover the entire rolling area, simplifying the structure of the pressure roller.

3. The contour movement path of the pressure roller is driven by the servo system controlled by the PLC system, and each point in the motion trajectory curve can be accurately controlled, which improves the uniformity of the rolling quality.

4. The contour control motion path of the pressure roller can be set by setting the PLC control program, which provides the versatility of the device.

5. The combined pressure roller device can simultaneously roll different areas of the green tire and improve the rolling efficiency. DRAWINGS

Figure 1 is a schematic cross-sectional view of a tire blank

Figure 2 is a perspective view of a tire blank assembly press roll device

Figure 3 is a side view of the tire and tire combination press roller device

Figure 4 is a schematic view showing the structure of a reverse-pressing roller mechanism in a tire-studded composite press roll device

As shown in Figures 1 to 4, 1-frame, 2-reverse pressure roller mechanism, 3- shoulder roller mechanism, 4-tread roller mechanism,

21-roller, 22-radial drive mechanism, 23-swing drive mechanism, 24-pivot connection, 25-connector, 26-adjustment, 27-adjustment drive,

221-radial cylinder, 222-radial slide, 241-pivot connection plate, 242-rotary shaft,

261-axial slide, 262-ball screw, 263-mother, 264-skateboard,

271-motor, 272-tensioner, 273-synchronous belt, 274-synchronous pulley

As shown in FIG. 1 to FIG. 3, the tire blank assembly roller mechanism device comprises a frame 1, and the frame 1 is provided with a reverse wrapping roller mechanism 2, a tread pressing roller mechanism 4, and a shoulder pressing roller mechanism 3, The rollers are vertically, vertically, and vertically distributed, and each has a roller disposed at the front end. The rear end of the roller is provided with a driving mechanism that feeds the rolling station in contact with the outer surface of the tire and performs a rolling operation. .

As shown in Fig. 1, the green tire combined pressing device comprises two sets of reverse-pressing roller mechanisms, which are respectively responsible for rolling both sides of the tread and the shoulder portion, that is, the B region on the left and right sides of the fetal embryo; The mechanism 2 is responsible for rolling the tread portion, that is, the A region; the two sets of shoulder pressing roller mechanisms 3 are respectively responsible for rolling the inner side of the shoulder and the side portion of the tire, that is, the C area on the left and right sides of the fetal embryo.

The press roller of the shoulder press roller mechanism 3 has a wide axial length, and its length and outer surface contour match the outer contour of the A region, ensuring that the entire A region can be evenly distributed by the roller during the rolling process. Pressing force. The roller of the shoulder press roller mechanism 3 moves along the outer contour of the C region during the rolling process, and the entire C region is subjected to a relatively uniform pressing force of the pressing roller during the moving process, wherein the roller is along the contour of the C region. The movement is achieved by means of a cylinder drive. For the reverse wrapping roller mechanism 2, since the curvature of the B region is large, the movement of the roller is difficult to match with the outer contour of the B region by using the cylinder driving, so when the roller rolls the outer surface of the B region, the B region Uneven force affects tire quality. In order to overcome this shortcoming, the reverse wrapping roller mechanism 2 adopts a servo drive controlled by a PLC system, and controls the driving force of the servo driving mechanism in real time by setting a PLC program, that is, the movement track of the roller during the rolling process, realizing the contour rolling Pressure. The servo drive mechanism is preferably an electric cylinder, and the reverse wrap roller mechanism 2 is preferably of the structure shown in FIG. 4, as follows: There are two sets of reverse-pressing roller mechanisms 2, left and right, and each set of reverse-pressing roller mechanism 2 includes The roller 21, the swing drive mechanism 23, and the swing drive mechanism 23 are preferably servo electric cylinders, and the linear motion of the servo cylinder is converted into the swing motion of the roller 21 by the pivot joint 24. The pivotal connection member 24 includes a pivotal connection plate 241 and a rotating shaft 242. One end of the pivotal connection plate 241 is connected to the output end of the servo electric cylinder, and the other end is connected to the roller 21, when the cylinder rod of the servo electric cylinder is extended or retracted. At this time, the roller 21 swings around the rotation shaft 242. The swing drive mechanism 23, the pivot link 24 is disposed on a connecting bracket 25 that is coupled to a radial drive mechanism 22 that includes a radial cylinder 221. The radial cylinder 221 and the connecting frame 25 are disposed on the sliding plate 264. The sliding plate 264 is provided with a radial sliding rail 222. Under the action of the radial cylinder 221, the connecting plate 25 can slide back and forth along the radial sliding rail 222.

When the rolling operation is performed, the cylinder rod of the radial cylinder 221 projects forward, and the driving connecting plate 25 slides on the radial rail to the direction of the blank until the roller 21 reaches the position in contact with the tire blank; The cylinder rod of the driving mechanism protrudes and performs a swinging motion under the action of the pivotal connecting member 24, and its swinging trajectory is the same as B The outlines of the areas are basically the same. At the same time, the tire blank is rotated on the forming drum so that the entire B region of the green tire can be subjected to a very uniform compression of the roller 21.

The reverse wrapping roller mechanism 2 can also adopt the following structure: The sliding plate 264 is removed, only the connecting plate 25 is used, and the radial cylinder 221, the swing driving mechanism 23, and the pivotal connecting member 24 are all disposed on the connecting plate 25 to drive the cylinder radially. The 221 is connected to the swing drive mechanism 23, and the swing drive cylinder 23 and the pivot joint 24 are slidably coupled to the connecting plate 25, and slide on the connecting plate 25 to drive the cylinder 221 to realize the entry and exit rolling station.

Since the left and right reverse wrapping roller mechanisms 2 are respectively used to roll the B regions on the left and right sides of the green tire, the lateral (axial) distances of the left and right B regions are different for different tire sizes. In order to improve the versatility of the combined roller device, the device is provided with an adjustment device 26 and an adjustment drive mechanism 27, both of which are disposed on the frame 1. The adjusting device 26 includes an axial slide 261, a ball screw 262, and a nut 263. The adjustment drive mechanism 27 includes a motor 271, a tension pulley 272, a timing belt 273, and a timing pulley 274. The output end of the motor 271 is connected to the timing pulley 274 via the timing belt 273 to drive the timing pulley 274 to perform a rotary motion, and the frame 1 is further provided with a tension pulley 272 for adjusting the tension of the timing belt 273. The timing pulley 274 is fixedly connected with the ball screw 262. The ball screw 262 is provided with two left and right threads in opposite directions, and the left and right threads are provided with left and right two wires 263, and the left and right wires 263 are respectively It is connected with the sliding plate 264 on the left and right reverse wrapping roller mechanism 2. The frame 1 is provided with two sets of axial slides 261. The slides 264 straddle the two sets of axial slides 261 and are slidably coupled to the axial slides 261.

When the tire size increases, the lateral distance between the left and right B zones increases. At this time, the distance between the left and right reverse wrapping roller mechanisms 2 needs to be adjusted to make the axial distance between the two rollers 21 The increase can be realized by the following method: The motor 271 drives the drive timing pulley 274 to rotate, the ball screw 262 is rotated, and the left and right springs are moved relative to each other on the ball screw 262 by the screw drive, thereby driving the left and right opposites. The wrapping roller mechanism slides in the opposite direction along the axial slide rail 261, and the motor 271 stops rotating when the distance between the two reaches a preset value. When the tire size is reduced, the motor 271 is reversed.

When the combined pressing device is used to perform the rolling operation, the reverse wrapping roller mechanism 2, the shoulder pressing roller mechanism 3, and the tread pressing roller mechanism 4 simultaneously project forward to the rolling station, and simultaneously to different regions of the green tire. Rolling is implemented. According to the different requirements of the rolling area for the rolling time, the three can exit the rolling station at different times and stop rolling.

Claims

Claim

A tire bead pressure roller mechanism comprising a connecting frame (25), a roller (21) on the connecting frame (25), and a driving mechanism for driving the roller (21) to perform a rolling action, characterized in that: The driving mechanism comprises a radial driving mechanism (22) for feeding the roller (21) into the rolling station, and a pendulum rolling motion of the driving roller (21) along the contour of the blank of the rolling region. A rotary drive mechanism (23), the swing drive mechanism (23) is controlled by a PLC system and connected to the roller (21) via a pivotal connection (24).

A tire blank press roller mechanism according to claim 1, wherein said radial drive mechanism (22) is a cylinder.

A tire blank press roller mechanism according to claim 1, wherein said swing drive mechanism (23) is a servo electric cylinder.

4. The connecting frame (25) is provided with a radial rail (222) for moving the roller (21) into and out of the rolling station.

5. A tire-studded combination press roll device comprising a frame (1), a tread press roller mechanism (4) provided on the frame (1) with a rolling tread intermediate portion, a rolled shoulder inner side and a tire a side shoulder pressing roller mechanism (3), and a reverse wrapping roller mechanism (2) for rolling both sides of the tread and the shoulder, characterized in that the reverse wrapping roller mechanism (2) is according to claims 1-4 A green tire press roller mechanism according to any of the preceding claims.

The tire blank assembly roller apparatus according to claim 5, wherein said reverse wrapping roller mechanism (2), tread pressing roller mechanism (4), and shoulder pressing roller mechanism (3) are Vertically arranged in the upper, middle and lower.

The tire-studded composite roller apparatus according to claim 5, wherein two sets of reverse-pressure roller mechanisms (2) are disposed on the frame (1), and the two sets of reverse-pressure roller mechanisms are adjusted. (2) A lateral spacing adjustment device (26).

The tire-studded composite roller apparatus according to claim 7, wherein said adjusting device (26) comprises a motor (271), and an output end of the motor (271) is connected to the lead screw (262), and the lead screw ( 262) Two silk cores (263) are arranged on the two sides, and are respectively connected to the connecting frames (25) of the two sets of reverse-pressing roller mechanisms (2).

A rolling method for applying a tire blank press roller mechanism according to any one of claims 1 to 4, wherein the roller drive (21) is first fed by a radial drive mechanism (22) during the rolling operation Into the rolling station, and then the swinging drive mechanism (23) drives the roller (21) to perform a profile rolling motion along the contour of the green tire in the rolling area, characterized in that the swing driving mechanism is controlled by a PLC system. Control, a rolling curve can be made according to the contour of the rolling area, thereby controlling each point in the rolling motion.

The rolling method according to claim 9, wherein the servo motor is driven by the servo motor (21) to perform a profile rolling motion.

A rolling method for applying a tire blank assembly press roll device according to any one of claims 5-8, a tread press roller mechanism (4), a shoulder press roller mechanism (3), and a counter The pressing roller mechanism (2) respectively presses different parts of the green tire, and is characterized in that the tread pressing roller mechanism (4), the shoulder pressing roller mechanism (3), and the reverse wrapping roller mechanism (2) simultaneously implement the green tire Rolling work.