WO2023109933A1

WO2023109933A1 - Tire forming machine and forming method therefor

Info

Publication number: WO2023109933A1
Application number: PCT/CN2022/139468
Authority: WO
Inventors: 刘春来
Original assignee: 萨驰智能装备股份有限公司
Priority date: 2021-12-17
Filing date: 2022-12-16
Publication date: 2023-06-22
Also published as: CN114311782A

Abstract

The present application relates to the technical field of tire production. Disclosed are a tire forming machine and a forming method therefor. The tire forming machine comprises a belt drum, a forming drum, a first conveying rail, a first transition conveying device, a rear pressure roller device, a second conveying rail and a first feeding device, wherein the rear pressure roller device and the first transition conveying device are movably mounted on the second conveying rail; the first feeding device can provide first rubber to the forming drum by means of the first transition conveying device; the first transition conveying device has, on the second conveying rail, a first feeding position in butt joint with the first feeding device, and a first butt-joint position in butt joint with the forming drum; and the rear pressure roller device has, on the second conveying rail, a rolling position in butt joint with the forming drum, and a first avoiding position for avoiding the first transition conveying device.

Description

A kind of tire building machine and its forming method

This application claims priority to a Chinese patent application with application number 2021115619550 filed with the China Patent Office on December 17, 2021, the entire contents of which are incorporated herein by reference.

technical field

The present application relates to the technical field of tire building, for example, to a tire building machine and a forming method thereof.

Background technique

Automobile tires in the related art have been able to meet basic driving needs, but as people pay more and more attention to driving safety, run-flat tires have been gradually applied to some vehicles. Run-flat tires ensure that vehicles can continue to drive after a puncture or flat.

Therefore, the structure of the tire building machine in the related art needs to be improved adaptively.

Contents of the invention

The present application provides a tire building machine, so that the tire building machine has the function of producing run-flat tire blanks.

This application adopts the following technical solutions:

A tire building machine, comprising:

a belt drum configured to form a tread assembly;

a building drum configured to form a carcass assembly;

a first conveyor track positioned vertically below the belt drum and the building drum;

the first transition conveying device;

The rear pressure roller device is arranged on the radially outer side of the forming drum, and the rear pressure roller device is configured to roll and compound the tread assembly and the carcass assembly;

The second conveying track is arranged in parallel with the first conveying track, and the rear pressure roller device and the first transition conveying device are movably installed on the second conveying track; and

a first feeding device configured to provide a first rubber material to the forming drum through the first transition conveying device;

The first transition conveying device has a first feeding position docked with the first feeding device and a first docking position docked with the forming drum on the second conveying track;

The rear pressing roller device has a rolling position on the second conveying track that is in contact with the forming drum and a first avoidance position that avoids the first transitional conveying device.

This application adopts the following technical solutions:

A tire building method based on the above tire building machine, comprising:

The tire material supply frame provides tread components to the belt drum, and the tread assembly is formed through the cooperation of the tire material supply frame and the belt drum;

The carcass material supply rack provides the building drum with part of the carcass components for forming into carcass components;

The first transition conveying device moves to the first feeding position along the second conveying track, and receives the first rubber material provided by the first feeding device;

The rear pressing roller device moves to the first avoidance position along the second conveying track;

The first transition conveying device moves to a first docking position along the second conveying track, and supplies the first rubber material to the forming drum;

The carcass material supply rack continues to provide the carcass components for forming the remainder of the carcass assembly to the building drum to form the carcass assembly on the building drum;

The transfer ring transfers the tread assembly to the surface of the carcass assembly on the building drum;

The rear pressing roller device moves to a rolling position along the second conveying track, and rolls the tread component on the building drum to compound the tread component and the carcass component to obtain a tire blank.

Description of drawings

Fig. 1 is a structural schematic diagram of a top view angle of a tire building machine in an embodiment of the present application;

Fig. 2A is a partial structural schematic view of the tire building machine in the embodiment of the present application at step S1;

Fig. 2B is a partial structural schematic view of the tire building machine in the embodiment of the present application at step S2;

Fig. 2C is a schematic diagram of the partial structure of the tire building machine in the embodiment of the present application at step S3;

Fig. 2D is a partial structural schematic view of the tire building machine in the embodiment of the present application at step S4;

Fig. 2E is a partial structural schematic view of the tire building machine in the embodiment of the present application at step S5;

Fig. 2F is a partial structural schematic view of the tire building machine in the embodiment of the present application at step S6;

Fig. 3A is a top view of the first transition conveying device in the embodiment of the present application when it is in the first feeding position;

Fig. 3B is a top view of the first transition conveying device in the first docking position in the embodiment of the present application;

Fig. 3C is a top view of the first transition conveying device in the embodiment of the present application when it is docked with the forming drum;

Fig. 4A is a side view of the first transition conveying device in the embodiment of the present application when it is in the first feeding position;

Fig. 4B is a side view of the first transition conveying device in the embodiment of the present application when docking with the forming drum;

Fig. 5 is a schematic diagram of the transmission structure of the transition drum in the embodiment of the present application.

In the picture:

100. Belt drum; 200. Tire fabric feeding frame; 300. Building drum; 400. Carcass material feeding frame; 500. Transfer ring; 600. Bead positioning device; 700. Bead presetting device; 800. Rear pressure roller device; 900, the first feeding system; 910, the second feeding system;

110, the first delivery track; 210, the second delivery track;

1A, the first transition conveying device; 1B, the second transition conveying device;

11. Transition drum; 111. Drum body; 112. Accepting surface; 113. Needle; 114. Adsorption part;

12. Rotary drive mechanism; 121. Spline shaft; 122. Rotary drive unit;

13. Docking drive mechanism; 131. Slide block; 132. Slide rail; 133. Docking drive unit;

14. Travel drive mechanism;

15. Sliding seat;

16. Opening and closing drive mechanism; 161. Lead screw; 162. Opening and closing drive unit;

3A, the first feeding device; 3B, the second feeding device.

Detailed ways

In the description of this application, unless otherwise clearly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the meanings of the above terms in this application according to the situation.

In this application, unless otherwise expressly specified and limited, a first feature being "on" or "under" a second feature may include direct contact between the first and second features, and may also include the first and second features Not in direct contact but through another characteristic contact between them. Moreover, "above", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. "Below", "beneath" and "under" the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

In the description of this embodiment, the terms "up", "down", "right", and other orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operations, rather than indicating Or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the application. In addition, the terms "first" and "second" are only used to distinguish in description, and have no special meaning.

The embodiment of the present application provides a tire building machine. The tire building machine is a one-step tire building machine, which is configured to form semi-steel radial tire blanks, for example, can be set to form run-flat tire blanks.

Fig. 1 is a structural schematic view of a tire building machine in an embodiment of the present application in a top view. As shown in Figure 1, the tire building machine provided by the embodiment of the present application includes a belt drum 100, a tire material supply frame 200, a building drum 300, a carcass material supply frame 400, a transfer ring 500, a bead positioning device 600, The bead preformer 700 and the rear pressure roller device 800 . Exemplarily, the tire building machine also includes a first conveying track 110, the first conveying track 110 is located below the belt drum 100 and the forming drum 300 in the vertical direction, and the belt drum 100 and the transfer ring 500 can be placed in the first Move laterally on the conveyor track 110.

The process of forming the tire blank by the tire building machine is as follows.

The tread material supply rack 200 sequentially provides the belt drum 100 with tread components such as the belt layer, the cap band and the tread layer. The outer surface of the belt drum 100 and compound each other to form a tread assembly. The carcass material feeder 400 sequentially provides the building drum 300 with a pre-compound layer (Pre-assembly, PA) (spliced by the inner liner and the sidewall layer) and carcass components such as ply, so that the above carcass components are sequentially Attached to the outer surface of the forming drum 300 and combined with each other to form a carcass assembly. The PA composite layer may be referred to as a first carcass layer, and the ply may be referred to as a second carcass layer.

The bead pre-setter 700 supplies two beads to the bead positioning device 600 which places the two beads radially outward of the ply on the building drum 300 . When the inside of the carcass part located inside the bead is inflated by the building drum 300, the carcass part located outside the bead is turned up against the outer surface of the carcass part attached to the inside of the bead, thereby obtaining a tire body components.

The transfer ring 500 grabs the tread assembly on the belt drum 100 and transfers it to the radially outer side of the carcass assembly on the building drum 300, so that the tread assembly is attached to the radially outer surface of the carcass assembly;

The rear pressing roller device 800 performs rolling compound processing on the tread assembly and the carcass assembly to obtain a tire blank.

Compared with the molding process of ordinary tire blanks, the molding process of run-flat tire blanks also needs to attach two support glues to the designated positions of the PA composite layer before the ply is attached to the PA composite layer. The radial outer side is used to increase the thickness and rigidity of the sidewall of the tire by means of the support rubber, so that the support rubber can carry the weight of the vehicle body in the radial direction of the tire, so that the tire has the function of running flat and avoiding being damaged when the tire is flat. The body was completely flattened and the vehicle could not be driven. That is to say, after the building drum 300 receives part of the carcass parts provided by the carcass material supply rack 400 ie the PA composite layer, it also needs to receive the support glue, and only after receiving the support glue can it receive the rest of the carcass parts ie the cord.

For this reason, the tire building machine provided by the embodiment of the present application further includes a first feeding system 900 capable of providing support rubber to the building drum 300 and a second conveying track 210 arranged in parallel with the first conveying track 110 at intervals. Wherein, the rear pressing roller device 800 is arranged on the second conveying track 210 and can move laterally along the second conveying track 210 . The first feeding system 900 includes a first transitional conveying device 1A and a first feeding device 3A for supplying the first rubber material to the first transitional conveying device 1A. Wherein, the first transition conveying device 1A is arranged on the second conveying track 210 and is configured to move laterally along the second conveying track 210 to be aligned with the forming drum 300 front and rear and docked to provide the first rubber material to the forming drum 300 . In this way, when the above-mentioned molding machine is manufacturing run-flat tires, the first rubber material is the support rubber. , the belt-shaped support rubber can be transferred to the PA composite layer on the drum surface of the forming drum 300 through the first transfer device 1A. As the forming drum 300 rotates, the strip-shaped backing glue can be rolled up by the building drum 300 on the outer periphery of the PA composite layer to form a ring-shaped closed backing glue.

It should be noted that the first transition conveying device 1A needs to move laterally to dock with the first feeding device 3A, so that the first transition conveying device 1A receives the first rubber material provided by the first feeding device 3A. Taking the support glue as an example, the first transition conveying device 1A can move to a predetermined position facing the forming drum 300 after receiving the support glue. After the first transition conveying device 1A moves to a predetermined position and docks with the forming drum 300 , the forming drum 300 rotates to receive the support glue. After the support glue on the first transition conveying device 1A is completely transferred to the forming drum 300 , the first transition conveying device 1A can move laterally to the feeding device 3 again to receive the next support glue.

In order to transfer the support rubber to the drum surface of the forming drum 300, the first transition conveying device 1A needs to be arranged on the rear side of the forming drum 300 and is facing the drum surface of the forming drum 300, and the rear pressure roller device 800 also needs to be at the same position Carry out compound rolling treatment to the carcass assembly on the building drum 300, or carry out compound rolling treatment to the carcass assembly and the tread assembly on the building drum 300 at the same position, in order to avoid the first transition conveying device 1A and the subsequent The positional interference of the pressing roller device 800 needs to allow the first transition conveying device 1A and the rear pressing roller device 800 to face the drum surface of the forming drum 300 successively, so as to carry out the transition conveying operation and rolling treatment operation of the supporting rubber respectively.

Optionally, as shown in Figure 1, in the case of special needs, in order to slow down the friction between the tire and the rim, it is also necessary to increase the spigot reinforcement structure in the tire. Therefore, in the molding process of the tire blank, it is necessary to increase the spigot rubber. In this way, the tire building machine provided in the embodiment of the present application further includes a second feeding system 910 . Exemplarily, the second feeding system 910 includes a second transition conveying device 1B and a second feeding device 3B. Wherein, the second transitional conveying device 1B is configured to provide the second rubber material to the forming drum 300 , for example, the mouth rubber. The second feeding device 3B is configured to provide the mouth glue to the second transition conveying device 1B. The second transition conveying device 1B is disposed on the second conveying track 210 and can move laterally along the second conveying track 210 . Both the second transitional conveying device 1B and the first transitional conveying device 1A are arranged on the second conveying track 210 and arranged laterally at intervals.

In one embodiment, one end of the second conveying track 210 extends beyond the first conveying track 110 , and the first feeding device 3A can be disposed on any side of the second conveying track 210 .

In one embodiment, the first feeding device 3A and the second feeding device 3B are both located on the same side of the second conveying track 210 and arranged at intervals. In another alternative embodiment, the first feeding device 3A and the second feeding device 3B can be respectively disposed on both sides of the second conveying track 210 .

2A to 2F show the process of the first feeding system 900 and the second feeding system 910 sequentially supplying support glue and rim glue to the building drum 300, and the process of rolling the carcass assembly by the rear pressing roller device 800. Among them, the method of rubber feeding is as follows:

The first transition conveying device 1A receives the support glue;

As shown in FIG. 2A , the first transitional conveying device 1A is in the first feeding position 2101 aligned with the first feeding device 3A, so that the first transitional conveying device 1A receives the support glue output by the first feeding device 3A.

The first transition conveying device 1A moves laterally to the first docking position 2102 aligned with the forming drum 300;

As shown in FIG. 2B , the first transition conveying device 1A bearing the support rubber moves laterally to the first docking position 2102 aligned with the forming drum 300 . Move to the first avoidance position 2104 and the second avoidance position 2107 to make way for the first transition conveying device 1A.

The first transition conveying device 1A moves back and forth to dock with the forming drum 300;

As shown in FIG. 2C , when it is necessary to provide support rubber to the building drum 300 , the first transitional conveying device 1A docks with the building drum 300 back and forth to transfer the support rubber to the drum surface of the building drum 300 .

When the spigot reinforcement structure needs to be added to the tire, the method of feeding the rubber material also includes:

The second transition conveying device 1B receives the mouth glue;

As shown in Figure 2A, when the first transition conveying device 1A is in the first feeding position 2101, the second transition conveying device 1B can be in the second feeding position 2105 aligned with the second feeding device 3B at the same time, so that The second transition conveying device 1B receives the spigot glue output by the second feeding device 3B. Before the first transitional conveying device 1A moves to the first docking position 2102, the second transitional conveying device 1B can move first to give way.

The second transition conveying device 1B moves laterally to the working station aligned with the forming drum 300;

As shown in Figure 2D, after the support glue is transferred to the drum surface of the building drum 300, and the first transition conveying device 1A is reset to the first feeding position 2101, the second transition conveying device 1B can move from the second avoidance position 2107 Laterally moved to a second docking position aligned with the building drum 300 . At this time, the rear pressing roller device 800 is still in the first escape position 2104 .

The second transition conveying device 1B moves back and forth to dock with the forming drum 300;

As shown in Figure 2E, when it is necessary to provide slit glue to the forming drum 300, the second transition conveying device 1B is docked with the forming drum 300 back and forth, so as to transfer the slit glue to the drum surface of the forming drum 300. At this time, the second transition The delivery device 1B is located in a second docking position 2106 for docking with the building drum 300 . That is to say, the first transition conveying device 1A resets to the first loading position 2101, and the second transition conveying device 1B moves to the second docking position 2106 along the second conveying track 210, so as to transfer the rim glue to the forming Drumhead for Drum 300.

The second transition conveying device 1B is reset to the second loading position 2105 .

As shown in FIG. 2F , the second transition conveying device 1B is reset to the second loading position 2105 . The rear pressing roller device 800 can move laterally from the first avoidance position 2104 to the rolling position 2103 at the rear side of the forming drum 300, and is used for composite rolling treatment of the tread assembly and the carcass assembly.

It can be understood that, in the embodiment of producing a slit-reinforced tire blank that only needs to add a slit-reinforcing structure on an ordinary tire blank, and in the production of a run-flat tire blank without a slit-reinforcing structure In an embodiment, the tire building machine only needs to be equipped with the first feeding system 900 or the second feeding system 910 . Of course, under the condition that the first feeding system 900 and the second feeding system 910 are configured at the same time, only one of the first feeding system 900 and the second feeding system 910 can be used to transfer the supporting rubber or the spout Glue, for example, only the second feeding system 910 is used to deliver the sub-mouth glue.

The structures of the first transitional conveying device 1A and the second transitional conveying device 1B will be described in detail below. The first transitional conveying device 1A and the second transitional conveying device 1B may adopt the same or similar structure, therefore, the following only takes the first transitional conveying device 1A as an example for detailed description.

As shown in Figures 3A, 3B and 3C, in conjunction with Figures 4A and 4B. The first transition conveying device 1A includes a transition drum 11 , a rotary drive mechanism 12 and a docking drive mechanism 13 . Wherein, the drum body 111 of the transition drum 11 has a circular or arc-shaped receiving surface 112 (that is, the drum surface of the drum body 111), the receiving surface 112 is configured to accept the strip-shaped support glue, and the rotary drive mechanism 12 is configured as Driving the transition drum 11 to rotate, the docking drive mechanism 13 is configured to drive the transition drum 11 to move along the radial direction of the forming drum 300 , so that the transition drum 11 is docked with the forming drum 300 . The first transition conveying device 1A also includes a travel driving mechanism 14 and a sliding seat 15 . Wherein the travel driving mechanism 14 is configured to drive the transition drum 11 to move laterally. The sliding seat 15 is arranged on the second conveying track 210 to support the transition drum 11 , and the sliding seat 15 can move along the second conveying track 210 driven by the travel driving mechanism 14 .

Exemplarily, FIG. 3A, FIG. 3B and FIG. 3C show from a top view that the first transition conveying device 1A communicates with the first feeding device 3A, the second conveying track 210 and the forming Drum 300 Fitting Process. Exemplarily, Fig. 4A and Fig. 4B show the docking process of the transition drum 11 and the building drum 300 from a side view.

As shown in FIG. 3A , the first transition conveying device 1A moves to a loading station docked with the first feeding device 3A. At this time, the rotation driving mechanism 12 drives the transition drum 11 to rotate forward, so that the receiving surface 112 of the transition drum 11 winds up the strip-shaped support glue provided by the first feeding device 3A.

As shown in FIG. 3B , the first transition conveying device 1A moves to a work station aligned with the forming drum 300 .

As shown in FIGS. 3C and 4B , the first transition conveying device 1A moves back and forth to dock with the forming drum 300 . The docking drive mechanism 13 drives the transition drum 11 to move toward the forming drum 300 to the docking position with the forming drum 300 shown in FIGS. The PA composite layer is pasted. Subsequently, the rotary drive mechanism 12 can reversely drive the transition drum 11 to rotate and output the support glue, while the forward rotating forming drum 300 will synchronously wind the support glue.

After the supporting rubber completes the transfer from the transition drum 11 to the forming drum 300, the docking drive mechanism 13 can drive the transition drum 11 to move away from the forming drum 300 to reset to the state shown in Figure 3B. Next, the traveling drive mechanism 14 drives the transition drum 11 Move laterally to the support rubber feeding station.

As shown in Figure 5, in the embodiment of the present application, optionally, the receiving surface 112 of the transition drum 11 is provided with needles 113 extending in the radial direction of the transition drum 11, and the transition drum 11 accepts the material provided by the first feeding device. When supporting the rubber, the needles 113 can partially penetrate into the supporting rubber, so as to fix the supporting rubber and prevent the supporting rubber from falling off when the transition drum 11 rotates. Exemplarily, the above-mentioned receiving surface 112 is also optionally provided with an adsorption part 114 capable of absorbing the support glue (such as an adsorption hole connected to an external vacuum air source). Based on production experience, the end of the support glue is the most suitable The part that is easy to detach from the transition drum 11 , therefore, the above-mentioned adsorption part 114 is correspondingly provided at least at the part of the receiving surface 112 for receiving the end of the support glue.

Since the laminating position of the support glue on the forming drum 300 is left-right symmetrical with respect to the center of the forming drum, in this embodiment, there are two transition drums 11, and the two transition drums 11 are arranged parallel and coaxially at intervals. Each of the transition drums 11 is provided with a receiving surface 112, so that the two transition drums 11 can each receive a support glue from the first feeding device 3A, so that the first transition conveying device 1A can transfer two supports to the forming drum 300 at the same time. glue.

In order to adapt to the production of tire blanks of different specifications, the first transition conveying device 1A also includes an opening and closing drive mechanism 16, which is configured to drive the opening and closing movement of the two transition drums 11, and adjust the distance between the two transition drums 11 so that the transition drums 11 can be matched with the supporting glue bonding position of the tire blank of corresponding specification on the building drum 300 .

Exemplarily, as shown in FIG. 3A and FIG. 5 , the rotary drive mechanism 12 includes a spline shaft 121 and a rotary drive portion 122, and the drum bodies 111 of the two transition drums 11 are slidably mounted on the spline shaft by a spline structure. 121 , so that when the rotation driving part 122 drives the spline shaft 121 to rotate, the two drums 111 can rotate together with the spline shaft 121 . The opening and closing drive mechanism 16 includes a lead screw 161 and an opening and closing drive part 162. The spline shaft 121 is a hollow structure, and the lead screw 161 is coaxially built in the spline shaft 121. The first threaded section and the second threaded section, the spline structure of the two drums 111 passes through the through groove provided in the axial direction of the spline shaft 121 and extends into the inner cavity of the spline shaft 121, and is respectively screwed to the first threaded section and the second thread segment, when the opening and closing driving part 162 drives the screw 161 to rotate, the two drums 111 are driven by the first thread segment and the second thread segment with opposite helical directions, along the axial direction of the spline shaft 121 The through groove slides and separates to obtain different spacings.

On the basis of the structure of the above-mentioned rotary drive mechanism 12 and the opening and closing drive mechanism 16, when the two drums 111 receive or output the supporting glue, the two drums 111 rotate synchronously and the distance must remain unchanged. When the driving part 122 drives the spline shaft 121 to rotate, the opening and closing driving part 162 must simultaneously drive the lead screw 161 to rotate at a specific adapted speed. When it is only necessary to adjust the distance between the two drums 111, stop the rotary drive mechanism 12 and make the opening and closing drive mechanism 16 work, that is, the opening and closing drive part 162 drives the screw 161 to rotate to the distance between the two drums 111. Just the desired size.

When the transition drum 11 needs to rotate to receive or output the supporting rubber, the first servo motor drives the two drums 111 to rotate through the first reducer, and at the same time, the opening and closing driving part 162 needs to cooperate to rotate together so that the spline shaft 121 Rotate in the same direction and at the same speed as the leading screw 161.

Exemplarily, the rotary drive part 122 includes a first servo motor, a first reducer connected to the output end of the first servo motor, and a synchronous pulley set connected between the output end of the first reducer and the spline shaft 121, The speed N1 of the first servo motor is set as 2000r/min, the reduction ratio i1 of the first reducer is 10, and the reduction ratio i2 of the synchronous pulley set is 2. The opening and closing drive portion 162 includes a second servo motor and a second speed reducer coaxially connected between the second servo motor and the leading screw 161, the second servo motor is set to rotate at N2, and the second speed reduction gear has a reduction ratio i3 for 5.

When the first servo motor works to drive the spline shaft 121 to rotate, the speed of the spline shaft 121 is N1/i1/i2=100r/min. At this time, the second servo motor needs to drive the screw 161 at the same speed of 100r/min. rotation, so the rotational speed of the second servo motor should be N2=100*i3=500r/min.

As shown in FIG. 4A and FIG. 4B , the sliding seat 15 is slidably installed on the second conveying track 210 , and the docking driving mechanism 13 includes a sliding block 131 , a sliding rail 132 and a docking driving part 133 . The slide block 131 is fixed on the slide seat 15 , the slide rail 132 is slidably installed on the slide block 131 along the radial direction of the forming drum 300 , and the docking drive part 133 is configured to drive the slide rail 132 to slide on the slide block 131 . The transition drum 11 is rotatably installed on the slide rail 132, and the axial direction of the transition drum 11 is parallel to the axial direction of the forming drum 300. Drum 11 is docked with building drum 300 .

Exemplarily, the docking drive part 133 may include a cylinder whose cylinder body is fixed to the slide block 131 or the slide seat 15, the piston rod of the cylinder is in transmission connection with the slide rail 132, and the slide rail 132 can be driven to drive the transition drum 11 when the cylinder piston expands and contracts. Slide along the radial direction of the transition drum 11. Exemplarily, the docking drive part 133 may also include a mechanism capable of fine-tuning the stroke, such as a lead screw and a nut pair, to assist the cylinder to drive the slide rail 132, thereby compensating for the deficiency and deviation of the cylinder stroke, so that the transition drum 11 can be precisely aligned with the forming drum 300. butt. The above-mentioned cylinder and lead screw nut sub-mechanism can adopt related technologies, and will not be repeated here.

In the related art, there are mature solutions for the carrier (such as the sliding seat 15) to move along the conveying track (such as the second conveying track 210). The worm gear of the motor meshes with the worm, so that when the worm gear motor rotates, it can drive the carrier to slide or roll along the conveying track. Therefore, in this embodiment, the structure of the travel driving mechanism 14 is not described and limited.

There are rubber material feeding devices maturely used in tire building machines in related technologies. In this embodiment, both the first feeding device 3A and the second feeding device 3B can use related technologies. Therefore, the structures of the two Also do not repeat and limit.

The tire building machine provided by this application is not only suitable for forming ordinary tire blanks, but also suitable for forming slit-reinforced tire blanks with slit rubber added on the basis of ordinary tires, and is also suitable for forming on the basis of ordinary tires. A run-flat tire blank with additional support rubber. In the process of forming the above two kinds of tire blanks which are different from ordinary tire blanks, the first transition conveying device, the second transition conveying device and the rear pressure roller device can slide along the second conveying track and avoid each other, so as to respectively dock with the forming drum in due time Complete the feeding process of support rubber and spigot rubber and the tread rolling process. In addition, the tire building machine can be improved on the basis of the common one-step tire building machine to have the ability to produce run-flat tire blanks.

Claims

A tire building machine, comprising:

belt drum (100), configured as a molded tread assembly;

A forming drum (300), configured as a forming carcass component;

a first conveying track (110), positioned vertically below the belt drum (100) and the forming drum (300);

The tire building machine also includes:

The first transition conveying device (1A);

The rear pressure roller device (800) is arranged on the radially outer side of the forming drum (300), and the rear pressure roller device (800) is configured to carry out rolling compounding of the tread component and the carcass component;

The second conveying track (210) is arranged in parallel with the first conveying track (110), and the rear pressing roller device (800) and the first transition conveying device (1A) are movably installed on the first conveying track (110). On the second conveying track (210); and

The first feeding device (3A) is configured to provide the first rubber material to the forming drum (300) through the first transition conveying device (1A);

The first transition conveying device (1A) has a first feeding position (2101) docked with the first feeding device (3A) on the second conveying track (210) and connected to the forming drum ( 300) a first docked position for docking (2102);

The rear pressing roller device (800) has a rolling position (2103) that docks with the forming drum (300) on the second conveying track (210) and a position that avoids the first transitional conveying device (1A) A first avoidance position (2104).
The tire building machine according to claim 1, wherein the first transition conveying device (1A) comprises:

The transition drum (11) has a circular or arc-shaped receiving surface (112), and the receiving surface (112) is configured to receive the first rubber compound;

a rotary drive mechanism (12) configured to drive the transition drum (11) in rotation; and

The docking drive mechanism (13) is configured to drive the transition drum (11) to move along the radial direction of the forming drum 300, so that the transition drum (11) docks with the forming drum (300).
The tire building machine according to claim 2, wherein the first transition conveying device (1A) further comprises:

a sliding seat (15), the sliding seat (15) is arranged on the second conveying track (210), and the sliding seat (15) is arranged to support the transition drum (11);

A travel driving mechanism (14), the travel driving mechanism (14) is configured to drive the sliding seat (15) to move along the second conveying track (210).
The tire building machine according to claim 2, wherein two transition drums (11) are provided, and the two transition drums (11) are arranged in parallel at intervals, and the corresponding first feeding device (3A) Said first compound can be supplied to both said transition drums (11) simultaneously.
The tire building machine according to claim 4, wherein the first transition conveying device (1A) further comprises an opening and closing driving mechanism (16), and the opening and closing driving mechanism (16) is configured to drive two transitions Drum (11) opening and closing motion.
The tire building machine according to claim 1, further comprising: a second transition conveying device (1B) and a second feeding device (3B), the second feeding device (3B) is configured to pass through the second The transition conveying device (1B) supplies the second rubber material to the forming drum (300).
The tire building machine according to claim 6, wherein the second transition conveying device (1B) is movably installed on the second conveying track (210), and the second transition conveying device (1B) has The second feeding position (2105) docking with the second feeding device (3B), the second docking position (2106) docking with the forming drum (300) and avoiding the first transition conveying device (1A ) in the second avoidance position (2107).
The tire building machine according to claim 1, wherein the second conveying track (210) extends beyond the first conveying track (110) at one end, and the first feeding device (3A) is arranged on the first conveying track (110). Either side of the two conveying tracks (210).
The tire building machine according to claim 7, further comprising: a tire material supply frame (200), a carcass material supply frame (400) and a transfer ring (500);

The tread material supply rack (200) is configured to provide tread components to the belt drum (100) to form a tread assembly;

The carcass material supply rack (400) is configured to provide carcass components to the building drum (300) to form a carcass assembly;

The transfer ring (500) is configured to transfer the tread assembly to the surface of the carcass assembly.
A tire building method based on the tire building machine according to claim 9, comprising:

The tread material supply frame (200) provides the tread components to the belt drum (100), and the tire material supply frame (200) and the belt drum (100) cooperate with each other to form the tread assembly;

The carcass material feeding rack (400) provides part of the carcass parts for molding to the carcass assembly to the building drum (300);

The first transition conveying device (1A) moves along the second conveying track (210) to the first feeding position (2101), receiving the first rubber material provided by the first feeding device (3A);

The rear pressing roller device (800) moves to the first avoidance position (2104) along the second conveying track (210);

The first transition conveying device (1A) moves along the second conveying track (210) to a first docking position (2102), and supplies the first rubber material to the forming drum (300);

The carcass material feeding rack (400) continues to provide the carcass components for forming the remainder of the carcass assembly to the building drum (300), so as to form the carcass assembly on the building drum (300);

The transfer ring (500) transfers the tread assembly to the surface of the carcass assembly on the building drum (300);

The rear pressing roller device (800) moves to the rolling position (2103) along the second conveying track (210), and rolls the tread assembly on the forming drum (300), so that the tread assembly and the carcass The components are compounded to obtain a tire blank.
The tire building method of the tire building machine according to claim 10, further comprising:

When the first transition conveying device (1A) is in the first feeding position (2101), the second transition conveying device (1B) moves along the second conveying track (210) to the second feeding position ( 2105), receiving the second rubber material provided by the second feeding device (3B);

Before the first transition conveying device (1A) moves to the first docking position (2102) along the second conveying track (210), the second transition conveying device (1B) moves along the second conveying track ( 210) moving to a second avoidance position (2107);

After the first transition conveying device (1A) provides the first rubber material to the forming drum (300), the first transition conveying device (1A) resets to the first feeding position (2101) , the second transition conveying device (1B) moves to a second docking position (2106) along the second conveying track (210), and provides the second rubber material to the forming drum (300);

Before the rear pressing roller device (800) moves to the rolling position (2103) along the second conveying track (210), the second transition conveying device (1B) resets to the second feeding position ( 2105).