KR20200074959A - Molding drum, tire forming machine and tire forming method of tire forming machine - Google Patents

Abstract

The present invention discloses a forming drum. The forming drum includes a drum shaft, two side drums symmetrically installed on the drum shaft, and a center drum positioned between the side drums, wherein the center drum includes two half drums that can be inserted and matched to each other in the axial direction. Each of the half drums has a diameter changeable in a radial direction, and the side drum is connected to a half drum adjacent to one side of the side drum of the two half drums, and is movable relative to the half drum. The present invention further discloses a tire forming machine and a tire forming method of the tire forming machine.

Description

Molding drum, tire forming machine and tire forming method of tire forming machine

This application has priority over Chinese patent applications filed with the Chinese Intellectual Property Office on October 30, 2017 with the application number 201711042990.5 and Chinese patent applications filed with the Chinese Intellectual Property Office on December 29, 2017. And all the contents of the above application are incorporated into this application by way of citation.

The present invention relates to the technical field of tire molding, for example, to a molding drum, a tire molding machine and a tire molding method of the tire molding machine.

There are two types of tire molding technologies: secondary molding process secondary molding and primary molding process primary molding.

Secondary molding process Secondary molding realizes molding of the carcass assembly through the carcass drum, realizing the molding of the tread assembly through the tread drum, and then transmitting the tread assembly and the carcass assembly to the shaping drum to form the tire. Realize the operation. Because the carcass drum does not perform the shaping step for the carcass assembly, and the shaping step is completed by the shaping drum, the carcass assembly utilizes artificial or mechanical assistance during the transition from the carcass drum to the shaping drum. By removing the carcass assembly on the drum and moving it onto the shaping drum, the bead of the carcass assembly moves from the carcass drum onto the shaping drum to perform secondary positioning, resulting in bead position deviation and manufacturing of green tires Affects the precision of the tire and affects the tire quality.

In the first-stage forming process, the tread assembly realizes adhesion molding on the tread drum, and after the carcass assembly realizes adhesion molding on the molding drum, the tread assembly is transferred onto the forming drum to realize the tire forming operation, and the tire 1 Because the car is molded, there is no movement of the tire beads, so there is little artificial interference in the tire manufacturing process and high precision control, but this molding process does not satisfy the tire production of wide sidewalls.

Typically, wide sidewall tires are produced in the secondary method molding process equipment, but the accuracy of the secondary method molding equipment is not higher than that of the primary method molding equipment, thus affecting the tire quality.

The present invention forms a carcass assembly and simultaneously forms a molding drum having the function of performing air injection shaping on the carcass assembly, and a green tire having a wide sidewall, and forming a tire of a tire forming machine that can guarantee molding precision. You can provide a method.

In one embodiment, a forming drum is provided in the present invention, the forming drum comprising a drum shaft and two side drums symmetrically installed on the drum shaft and a center drum positioned between the side drums, The drums include two half drums that are matched to each other and can be inserted into each other in the axial direction, each of the half drums having a diameter changeable in the light direction, and the side drum is one of the two half drums. It is connected to a half drum close to one side of the side drum, and is movable relative to the half drum.

In one embodiment, the side drum includes a shaft drum sleeve mounted on the drum shaft and a side drum cylinder block assembly installed on an outer circumferential surface of the shaft housing, one end of the shaft drum being connected to the center drum , The other end of the shaft housing is connected to the side drum cylinder block assembly.

In one embodiment, the center drum includes a plurality of drum tiles installed in the main direction on each half drum, and each of the drum tiles is movable along a radial direction.

In one embodiment, the drum tile includes a first drum tile and a second drum tile, and both the first drum tile and the second drum tile have a plurality of set distances from each other extending in an axial direction from one side of the main body portion and the main body portion. It includes a finger portion spaced apart.

In one embodiment, the center drum is provided to be contracted or expanded, a plurality of finger portions of the two half drums are opposed to each other, and can be inserted and connected to each other in the axial direction, and the body portion of the two half drums is an extension of the center drum In a state they are spaced apart from one another and collectively form one closed ring.

In one embodiment, the side surface and the outer circumferential surface of the ring provided around the main body of the two half drums form a seamless state.

In one embodiment, the half drum further includes a drive assembly fixedly connected to the shaft housing, and the drive assembly can drive a plurality of first drum tiles and a plurality of second drum tiles to move in a radial direction. .

In one embodiment, the drive assembly includes a first support member, a second support member, a first slide member, a plurality of second slide members and a plurality of cone rods, the first support member and the second support member Is fixedly connected to the shaft housing of the drum shaft, the first slide member and the first support member are slidably connected, and the plurality of second slide members are all slidably connected to the second support member, respectively. Both ends of the cone rod are pivotally connected to one of the first slide member and the plurality of second slide members, respectively.

In one embodiment, the side drum is further provided with a turn-up unit and a bead support unit located at one end adjacent to the center drum of the side drum cylinder block assembly.

In one embodiment, a tire forming machine is provided in the present invention, wherein the tire forming machine includes a tread drum, the aforementioned forming drum, two material supply mechanisms, and a composite coupling device, wherein the tread drum is provided to form a tread assembly , The forming drum is provided to mold the carcass assembly, and the two material supply mechanisms are provided to supply materials to the tread drum and the forming drum, respectively, and the composite coupling device comprises the tread assembly and the carcass assembly. It is provided to combine the complex.

In one embodiment, a tire forming machine is provided in the present invention, and the tire forming machine includes a tread drum, a forming drum, an auxiliary forming unit, a composite coupling device, a tread drum driving box and a forming drum driving box, wherein the tread drum is tread It is provided to mold the assembly, the forming drum is provided to mold the carcass assembly, the tread drum driving box is provided to control the rotation or movement of the tread drum, and the forming drum driving box rotates the forming drum Or it is provided to control the movement, the composite coupling device is provided to form a green tire by rolling and compounding the tread assembly and the carcass assembly to assist the forming drum, and the auxiliary forming unit is configured to form the forming drum. It is provided to turn the bead into the carcass material by assisting and assisting the forming drum to turn down the side wall to the carcass material,

The forming drum includes two symmetrically installed side drums and a center drum positioned between the two side drums, and the center drum includes two half drums insertable to each other in the axial direction, and the side drum is Of the two half drums, connected to a half drum close to one side of the side drum and movable relative to the half drum, the center drum is provided to contract or expand in the radial direction, and the two drums are both beaded A support unit and a turn-up unit are installed, and the bead support unit is contractible or expandable in the radial direction.

In one embodiment, the tire forming machine further includes a bead positioning device capable of at least one axial movement.

In one embodiment, the auxiliary forming unit further comprises a turndown calender roll.

In one embodiment, the composite coupling device includes a center calender roll, a shoulder calender roll and a gripper.

In one embodiment, in the present invention, a tire forming method of a tire forming machine applied to the tire forming machine is provided, and when the center drum is in a contracted state, the forming drum rotates to wind up the carcass material, and the center drum expands When in the state, the auxiliary forming unit assists the forming drum to turn up the beads into the carcass material, and when the sidewalls are closely adhered to both sides of the bead-enclosed carcass material, the auxiliary forming unit is the forming drum To assist the turn-down of the side wall to the carcass material to form a carcass assembly, the bead support unit extends in the radial direction to lock the bead in the main direction, and the forming drum drive box is the car Air is injected into the curse assembly, and the two half drums are relatively moved in the axial direction to be inserted and matched, so that the inner circumferential surface of the tread assembly and the outer circumferential surface of the carcass assembly are in close contact, and the auxiliary molding unit and the complex coupling The device assists the forming drum so that the tread assembly and the carcass assembly are rolled and combined to form a green tire.

In one embodiment, the secondary forming unit loads and positions two beads through a bead positioning device in the step of turning up the beads into the carcass material by assisting the forming drum, and axially placing the two beads. And moving to the designated position of the forming drum.

In one embodiment, when the auxiliary forming unit assists the forming drum to turn up the beads into the carcass material, when the bead positioning device moves the two beads to the designated position of the forming drum, the The bead support unit further includes extending in the radial direction to lock the bead in the main direction.

In one embodiment, after adhering the sidewalls to both sides of the bead-wrapped carcass material, the auxiliary molding unit assists the forming drum to turn down the sidewalls to the carcass material to open the carcass assembly. In the forming step, the side drum is moved away from the center drum in the axial direction to give a first space, so that the calendar roll moves into the first space, and some side walls outside the edge of the carcass material And rolling it in close contact with the carcass material.

In one embodiment, before the bead support unit extends in the radial direction, the two side drums further include moving relatively in the axial direction until the bead support unit is located under the bead.

In one embodiment, while performing any one of the three steps described above, the tire forming method of the tire forming machine further comprises that the tread assembly installed on the tread drum is transmitted into the composite coupling device by the tread drum. Includes.

In one embodiment, before the tread assembly and the carcass assembly are combined into a green tire, the composite coupling device moves so that the tread assembly corresponds to the position of the carcass assembly on the forming drum or the forming drum moves to move the car. And further comprising allowing the cut assembly to correspond to the tread assembly on the composite coupling device.

In one embodiment, after the positions of the tread assembly on the forming drum and the position of the carcass assembly in the composite coupling device are matched, the two half drums are shafted until the distance between the two beads satisfies the ultra-standard value of the tire processing step. This includes moving relative to each other and inserting each other.

In one embodiment, the two half drums move relative to each other in the axial direction to insert and match the inner circumferential surface of the tread assembly and the outer circumferential surface of the carcass assembly, and the composite coupling device assists the forming drum In the step of rolling and compounding the tread assembly and the carcass assembly to form a green tire, after the inner circumferential surface of the tread assembly and the outer circumferential surface of the carcass assembly are in close contact, the forming drum rotates, The center calender roll and the shoulder calender roll include rolling the contact portions of the tread assembly and the carcass assembly so that the tread assembly and the carcass assembly are in close contact to form a green tire.

In one embodiment, the two half drums move relative to each other in the axial direction to insert and match the inner circumferential surface of the tread assembly and the outer circumferential surface of the carcass assembly, and the composite coupling device assists the forming drum In the step of rolling and compounding the tread assembly and the carcass assembly to form a green tire, after the shoulder calender roll rolls the shoulder of the green tire, the gripper fixes the green tire in the main direction, And, the center drum is contracted in the radial direction, the position is reset, and the molding drum driving box includes a vacuum extraction step for the carcass assembly in which air is injected.

1 is a structural diagram of a tire forming machine according to the present invention.
2 is a structural explanatory diagram according to the first time of the forming drum according to the present invention.
3 is a structural explanatory diagram according to the second time of the forming drum according to the present invention.
4 is a structural explanatory diagram according to the third time of the forming drum according to the present invention.
5 is a cross-sectional view of a forming drum according to the present invention.
FIG. 6 is an enlarged partial view of the sectional view illustrated in FIG. 5.
7 is an explanatory view of a local structure of a forming drum according to the present invention.
8 is a structural explanatory diagram of a drum tile of a forming drum according to the present invention.
9 is a side view in an expanded state of the first drum tile according to the present invention.
10 is a side view of the drum tile according to the present invention in a contracted state.
11 is a view showing a flat width when forming a carcass assembly of a forming drum according to the present invention.
12 is a view showing the shaping width when forming the carcass assembly of the forming drum according to the present invention.
13 is a three-dimensional assembly diagram of a tire building drum of the tire building machine according to the present invention.
14 is a sectional view of a tire building drum according to the present invention.
FIG. 15 is a local explanatory view after placing the carcass material on the outside of the forming drum shown in FIG. 14.
16 is an explanatory view of the positioning device and the bead placed on the outer periphery of the forming drum and carcass material of FIG. 3 together.
17 is an explanatory view after the center drum of the tire building drum shown in FIG. 16 is expanded.
18 is an explanatory view of the bead support unit of the tire building drum shown in FIG. 17 being extended and the positioning device contacting and/or supporting the center drum laterally.
19 is an explanatory view of the capsule of the tire forming drum shown in FIG. 18 after air injection turn-up.
20 is an explanatory view of the capsule shown in FIG. 19 in close contact with the tire forming drum after air discharge.
FIG. 21 is an explanatory view of some carcass materials for turning up the beads on the tire forming drum turn-up calender roll shown in FIG. 20 being rolled by the turn-up calender roll.
FIG. 22 is an explanatory view showing two sidewalls on both sides of the carcass material shown in FIG. 21;
23 is an explanatory view of the side wall on the turndown calender roll of the tire building drum shown in FIG. 22 being rolled by the turndown calender roll.
24 is an explanatory view in which the air injection shaping and tread assembly of the carcass assembly shown in FIG. 23 is located on the outer periphery of the carcass assembly.
Fig. 25 is an explanatory view of the center calender roll rolling the composite bonding portion of the tread assembly and the carcass assembly.
26 is an explanatory view of a first state in which the shoulder calender roll rolls a tire shoulder portion.
27 is an explanatory view of a second state in which the shoulder calender roll rolls the tire shoulder portion.
FIG. 28 is an explanatory view of a gripper of a composite coupling device gripping a green tire, extracting a vacuum in the green tire of the tire and shrinking the center drum.
29 is an explanatory view of the bead support unit being contracted.
Fig. 30 is a local explanatory diagram of a tire building drum after tire unloading is completed.

The embodiments of the present invention will be described below, but the embodiments described with reference to the drawings are for illustrative purposes only and should not be understood as limiting the scope of the invention.

Example 1

As shown in Figure 1, the present invention is a tread drum 40 provided to mold a tread assembly, a forming drum 2 provided to mold a carcass assembly, a tread drum 40 and a forming drum 2 It provides a tire forming machine 100 including two material supply mechanism (60) provided to supply materials to each and a composite coupling device (50) provided to combine the tread assembly and the carcass assembly.

The tread assembly includes a belt, a cap ply and a tread layer that are sequentially formed on the tread drum 40. The material supply mechanism 60 sequentially supplies the material to the tread drum 40 according to the forming order of the tread assembly, and the tread assembly is rolled and stitched, and then transmitted through the tread drum 40 into the composite coupling device 50. do.

The carcass assembly includes inner liners, plies, beads and side walls that are sequentially formed on the forming drum 2. The material supply mechanism 60 sequentially supplies materials to the forming drum 2 according to the forming order of the carcass assembly, and the carcass assembly is rolled and stitched, and then through the forming drum 2 to form a composite coupling device 50 Is sent to me. In one embodiment, in the forming process of the carcass assembly, before the step of adhering the sidewalls, the air injection turn-up step must be performed such that the beads are wrapped in the composite bonding layer of the inner liner and ply.

The composite coupling device 50 includes a transmission ring (not shown) and a rolling mechanism (not shown) installed on the transmission ring. The composite coupling process on the composite coupling device 50 of the tread assembly and the carcass assembly may refer to the description below.

The tread assembly is positioned in the transmission ring in the main direction. The shaping drum 2 performs air injection shaping by transmitting the carcass assembly into the tread assembly until the carcass assembly is in close contact with the inside of the tread assembly. The rolling mechanism rolls the tread assembly and the carcass assembly such that the carcass assembly and tread assembly are closely attached to form a complete green tire.

2 to 5, the forming drum 2 in the tire forming machine 100 provided according to the present invention includes a drum shaft 10, a molding assembly 20 installed on the drum shaft 10, and It includes a driving device (30). The forming drum 2 can complete the process steps of material winding, air injection turn-up, turn-down, and air injection shaping for the carcass assembly, and also match the composite coupling device 50 to form the green tire of the tire. Can. Therefore, the tire forming machine 100 according to the present invention can complete the process steps of the secondary method forming through only the tread drum 40 and the forming drum 2, and can automatically produce tires, through artificial or mechanical assistance. The carcass assembly on the forming drum 2 is removed, placed on the shaping drum, and there is no need to perform air injection shaping, thereby improving the tire quality.

Hereinafter, the structure of the forming drum 2 will be described.

4 to 5, one forming zone is provided on the drum shaft 10, and the molding assembly 20 is mounted in this forming zone. In one embodiment, the molding assembly 20 includes two side drums 21 installed symmetrically and a center drum 22 positioned between the two side drums 21. The center drum 22 includes two half drums 220 that can be inserted and matched with each other along the axial direction, and the two half drums 220 are symmetrically installed. Each side drum 21 is connected to a half drum 220 close to one side of the side drum 21 among the two half drums 220, and a portion of each side drum 21 is part of the half drum 220 ). The two side drums 21 are respectively fixedly connected to the driving device 30, and thus the side drums 21 are driven by the driving of the driving device 30 together with the half drums 220 to which they are connected. ) Along the axial direction. In one embodiment, the side drum 21 and half drum 220 located on one side of the drum shaft 10 and the side drum 21 and half drum 220 located on the other side of the drum shaft 10 are the same. Miracles can move in opposite directions or facing away from each other.). Since the molding assembly 20 can be inserted and matched between the two half drums 220 in the molding assembly 20, a larger range of standard width sizes can be realized, and thus tires of more size standards can be molded. have.

The present invention is a process of air injection shaping of the carcass assembly when the two half drums 220 move in the axial direction facing each other or in a direction opposite to each other, so that the half drums 220 move relatively in the axial direction. The steps can be realized, eliminating the need to remove the molded carcass assembly using artificial or mechanical assistance to perform air injection shaping on other drums, thus improving tire quality. In addition, when the side drum 21 and the half drum 220 are moved in the axial direction back to each other, the forming machine performs a turndown rolling operation between the side drum 21 and the half drum 220 You can give space.

In one embodiment, the axial direction can be understood as the axial direction of the drum shaft 10.

5, a turn-up unit 23 and a bead support unit 24 are provided on each side drum 21. As shown in FIG. When the carcass material advances and comes into close contact with the molding assembly 20, the drum shaft 10 is rotated, and the rotation of the molding assembly 20 is driven to connect the front and rear of the carcass material to form a ring shape. , Turning the bead material back to the carcass material through the turn-up unit 23 and the bead support unit 24 again.

The present invention performs the turn-up operation by the turn-up unit 23 and fixes the bead in the main direction through the bead support unit 24.

Each side drum 21 further includes a shaft housing 25 sleeved on the drum shaft 10 and a side drum cylinder block assembly 26 sleeved on the outer circumferential surface of the shaft housing 25. Both the turn-up unit 23 and the bead support unit 24 are installed at one end close to the center drum 22 of the side drum cylinder block assembly 26.

One end of the shaft housing 25 of the present invention is connected to the center drum 22, the other end of the shaft housing 25 is connected to the side drum cylinder block assembly 26, the side drum cylinder block assembly 26 Is slidable against the axial housing 25 by the drive of the gas path, so the side drum cylinder block assembly 26 can move axially and move closer or farther away from the center drum 22, the side drum cylinder block When the assembly 26 is far away from the center drum 22, a space is given, so that the molding machine performs a turndown rolling operation.

As shown in FIG. 5, the driving device 30 is a single screw rod, and the driving device 30 rotates under the control of an external control device (not shown). The driving device 30 is connected to the shaft housing 25 and the side drum cylinder block assembly 26 by one connection part (not shown), and one end of the connection part is screwed to the driving device 30, thereby driving The device 30 may allow the connection portion to move axially in a rotating state, and further drives the shaft housing 25 and the side drum cylinder block assembly 26 to move along the axial direction of the drum shaft 10. .

5, the principle of operation of the side drum cylinder block assembly 26 is similar to that of the cylinder, and the side drum cylinder block assembly 26 includes a side drum out cylinder block 261 and a side drum inner cylinder block 262. ) And a side drum piston 263 disposed between the side drum inner cylinder block 262 and the side drum out cylinder block 261. A lumen (not shown) is formed between the side drum inner cylinder block 262 and the side drum out cylinder block 261, and one end of the side drum piston 263 extends into the lumen. In addition, the side drum piston 263 is fixedly connected to the shaft housing 25 and the connecting portion, and the side drum inner cylinder block 262 is closely connected to the shaft housing 25 and fixedly connected to the side drum out cylinder block 261, , The side drum inner cylinder block 262 and the side drum out cylinder block 261 are slidable against the side drum piston 263 and the shaft housing 25. In one embodiment, as shown in Figure 5, the cross section along the axial direction of the side drum inner cylinder block 262 is approximately "T" shaped, the first part (262a) perpendicular to each other fixedly connected to each other and The second portion 262b is included. The first portion 262a extends axially and is sleeved outside the shaft housing 25, the second portion 262b extends radially and is perpendicular to the shaft housing 25, and the second portion 262b It is fixedly connected to the side drum-out cylinder block 261 by a silver screw (not shown). Therefore, when supplying air to the lumen of the side drum cylinder block assembly 26, the side drum inner cylinder block 262 and the side drum out cylinder block 261 simultaneously run on the shaft housing 25 along the drum shaft 10. Reciprocating movement is possible against the side drum piston 263, and at the same time, the turn-up unit 23 and the bead support unit 24 are moved together in the axial direction. Accordingly, a part of the side drum 21, that is, the side drum inner cylinder block 262 and the side drum out cylinder block 261 is corresponding to the side drum piston 263 and the shaft housing 25 of the side drum 21. It can move away from the half drum 220. When a part of the side drum 21 and the half drum 220 are separated, one space is formed between the two, thereby allowing the other worktable device to move into the space to perform the turn-down process step of the carcass material to perform the side wall. The carcass material is compounded to form a carcass assembly. After the turn-down of the carcass material is completed, a part of the side drum 21 moves to approach the half drum 220, and then, between the two half drums 220, both are driven by driving of the driving device 30. As they are close to each other and inserted, the air supply shaping step of the carcass assembly is completed.

5 to 7, the two half drums 220 of the center drum 22 are respectively connected to the shaft housing 25 of the two side drums 21, whereby each side drum ( 21) may be connected to the half drum 220 of one side adjacent to the side drum 21 of the two half drums (220).

As shown in FIG. 6 and FIG. 7 in combination with FIG. 5, each half drum 220 is in a contracted state, ie, an initializing state, when the material is wound, and the center drum 22 has a first outer diameter size. . When performing the bead turn-up, the half drum 220 expands to the outside and finally maintains the expanded state, wherein the center drum 22 has a second outer diameter size. The second outer diameter size is larger than the first outer diameter size. Each half drum 220 includes a plurality of drum tiles 222 and a drive assembly 223 fixedly connected to the axial housing 25 of the side drum 21. The drive assembly 223 can drive the radial movement of the drum tile 222 (away from or close to the drum shaft 10) such that the center drum 22 realizes two different outer diameter sizes.

In one embodiment, the driving assembly 223 includes a first support member 2232, a second support member 2235, a first slide member 2234, a plurality of second slide members 2233, and a plurality of cone rods ( 2236), the first support member 2232 and the second support member 2235 are fixedly connected to the shaft housing 25 of the side drum 21, respectively, the first slide member 2234 and the first support The member 2232 is slidably connected, and the plurality of second slide members 2233 are all slidably connected to the second support member 2235, and both ends of each cone rod 2236 are first slide members Each of the 2234 and one of the plurality of second slide members 2233 is pivotally connected. The first support member 2232 is horizontally extended to form a ring, and the sleeve is installed outside the drum shaft 10 and is connected to the shaft housing 25 in the axial direction. The second support member 2235 forms a ring shape, is sleeved on the outer circumference of the upper end of the shaft housing 25 and is connected to the shaft housing 25 in a radial direction. Both ends of each cone rod 2236 are pivotally connected to the first slide member 2234 and the second slide member 2233, respectively. Thus, the axial movement of the first slide member 2234 can drive the radial movement of the second slide member 2233, thereby further driving the radial movement of the drum tile 222.

The present invention can drive the radial movement of the second slide member 2233 through the axial movement of the first slide member 2234, and also the first slide member 2234 through the pivot connection of the cone rod 2236 ), the axial movement may drive the radial movement of the second slide member 2233.

The first support member 2232 and the second support member 2235 are both fixedly connected to the shaft housing 25, so that the axial housing 25 does not change the axial position relative to the drum shaft 10. Since the position of the support member 2232 and the second support member 2235 also does not change relative to the drum shaft 10, the second slide member 2233 that slides on the second support member 2235 in the radial direction is also a drum shaft. Axial position movement does not occur relative to (10).

5 to 8 and FIGS. 9 and 10, the first slide member 2234 moves in the axial direction inward, and the first slide member 2234 on a plurality of cone rods 2236 The pivot connected to the one end is also driven to move in the axial direction, and the plurality of cone rods 2236 are respectively driven to move the other end pivotally connected to the plurality of second slide members 2233 to move in the radially inward direction. The second slide member 2233 of the drum also moves along the radial direction to approach the drum shaft 10 and at the same time, the plurality of drum tiles 222 connected to the plurality of second slide members 2233 move along the radial direction to drum As the shaft 10 approaches, the diameter corresponding to the plurality of drum tiles 222 becomes smaller, and the shrinkage of the center drum 22 is completed as the diameter becomes smaller.

6 to 10, the plurality of drum tiles 222 further include a first drum tile 2221 and a second drum tile 2222 that are spaced apart, but the first drum tile 2221 is A drum tile of the first radial stroke, and a second drum tile 2222 is a drum tile of the second radial stroke. When the first drum tile 2221 and the second drum tile 2222 simultaneously expand or contract, the first radial stroke is smaller than the second radial stroke. The structures of the first drum tile 2221 and the second drum tile 2222 are similar, and the pings extending from one side of the main body portion 2223 and the main body portion 2223 are both fixedly connected to the second slide member 2223. Rejection 2224. The edges and outer circumferential surfaces of the main body portion 2223 of the plurality of first drum tiles 2221 and the plurality of second drum tiles 2222 form a ring in which the drum tiles 222 are spaced apart from each other and jointly closed. And, the side and outer peripheral surface of the ring form a seamless state. In one embodiment, the seamless state here is intimately connected between adjacent first drum tiles 2221 and second drum tiles 2222 to indicate that there is no gap.

The present invention completes the process steps such as winding the material of the tire forming process, turn-up, etc. by stretching in the radial direction of the plurality of first drum tiles 2221 and the plurality of second drum tiles 2222.

The present invention realizes the axial insertion of the two half drums 220 through the finger portion, and can further complete the air injection shaping step of the carcass assembly.

In one embodiment, since the finger portions 2224 of the two half drums 220 are opposed to each other and can be inserted and connected and intersected with each other, the two half drums 220 are inserted and connected to each other in the axial direction. Can be. In one embodiment, since the drum tile 222 is fixed indirectly on the shaft housing 25 through the second support member 2235, the shaft housing 25 is moved in the axial direction by the driving of the driving device 30 In this case, the shaft housing 25 causes the finger portion 2224 of the drum tile 222 to move in the axial direction, thereby realizing the axial insertion of the two half drums 220.

The present invention controls the radial elevation of the drum tile 222 through the drive assembly 223.

The finger portion 2224 of the two half drums 220 of the present invention can be inserted by the axial movement of the shaft housing 25, thereby changing the axial displacement between the two half drums 220, furthermore The air injection shaping step of the carcass assembly can be completed.

11 to 12, in one embodiment, the axial direction between two bead support units 24 each installed on two side drum cylinder block assemblies 26 prior to the air injection shaping step of the carcass assembly The distance is referred to as the flat width, and the axial width of the tire itself is referred to as the fixed width, but the flat width is greater than the defined width, and the air injection shaping step of the carcass assembly is a transition process from the flat width to the defined width through the forming drum 2 Is to realize. Hereinafter, a process in which the carcass assembly performs air injection shaping using the finger portion 2224 of the drum tile 222 will be described in detail.

As described above, the molding process of the carcass assembly may refer to the following description.

The side drum 21 of the forming drum 2 is driven through the side drum cylinder block assembly 26 to move relative to the half drum 220 to be close to the half drum 220, whereby the side drum 21 and The half drum 220 is integrally formed, and at this time, the half drum 220 forms a contracted state, and the molding assembly 20 performs a material winding process. The drum tiles 222 of the two half drums 220 are axially close together using the finger portion 2224 until the axial distance between the two bead support units 24 is smaller than the flat width but slightly larger than the regular width. Inserting each other, at the same time, the forming drum 2 performs air injection to the carcass material, and the turn-up unit 23 and the bead support unit 24 match to turn the bead into the carcass material, and equipped with beads The sidewalls are adhered to both sides of the carcass material to form a carcass assembly. The forming drum 2 carries the carcass assembly in the above-described state and moves it into the composite coupling device 50 so as to correspond to the tread assembly, and at the same time, the finger portion 2224 continues between the two bead support units 24 Approaching along the axial direction until the axial distance is equal to the shaping width, the carcass assembly is in close contact on the inner toroidal surface of the tread assembly, thereby completing the air injection shaping step of the carcass assembly.

The present invention realizes the automation of the second-order tire by simultaneously completing the molding of the carcass assembly, the air injection shaping, and the composite coupling on the forming drum through the forming drum, thereby reducing excessive artificial intervention and improving tire quality.

After the material winding and turn-up of the forming drum 2 according to the present invention is completed, the side drum 21 and the half drum 220 move in a direction opposite to each other, thereby making it between the side drum 21 and the half drum 220. A space is provided in the tire forming machine 100 to perform a turndown rolling operation, and the half drum 220 and the side drum 21 are connected to two half drums 220 and the side drum at the same time. By driving to move relatively in the axial direction of (21), the air injection shaping step is completed, and furthermore, material winding, turn-up, turn-down, and air injection shaping functions of the forming drum 2 are realized. Compared to related technologies, the tire forming machine 100 of the present invention can complete the process steps of the secondary method forming through only the tread drum 40 (band drum) and the forming drum 2, and is capable of automating tire production. As the carcass assembly on the carcass drum is removed, it is placed on the shaping drum and air injection shaping is not necessary, thereby improving tire quality.

Example 2

13 to 30, the present invention is provided for molding a green tire of a tire, a forming drum 1, a tread drum (not shown), a composite coupling device, and a forming drum driving box (not shown) , A tread drum driving box (not shown) and a tire forming machine (not shown) including an auxiliary forming unit. Here, the forming drum driving box drives rotation or movement of the forming drum 1, the tread drum driving box drives rotation or movement of the tread drum, and the auxiliary forming unit interlocks with the forming drum 1 to open the carcass assembly. It can be molded, and the tread assembly 7 can be molded in conjunction with the tread drum, and the composite coupling device is supplied with the tread assembly 7 on the tread drum, interlocked with the mold drum 1 to tread assembly 7 Combine the carcass assembly with the green tire of the tire. In one embodiment, a drum shaft 3 and a screw rod (not shown) are installed in the forming drum drive box, the screw rod is located in the drum shaft 3, and the forming drum 1 is a drum shaft 3 It is fixed on.

13 and 14, the forming drum 1 includes two symmetrically installed side drums 21 and a center drum 11 positioned between the two side drums 21, and the center drum (11) has two states of contraction or expansion in the radial direction. In one embodiment, the center drum 11 includes two half drums 110 that can be inserted and matched to each other in the axial direction, and each side drum 21 can be connected to the half drum 110 on one side and both The liver is relatively mobile. The turn-up unit 101 and the bead support unit 102 are installed at one end close to the center drum 11 of the side drum 21. The bead support unit 102 may be contracted or expanded in the radial direction, and in this embodiment, the turn-up unit 101 may be an air-injectable capsule. The forming drum driving box controls the rotation of the drum shaft 3, thereby causing the side drum 21 and the center drum 11 to rotate, and the forming drum driving box controls rotation of the screw rods to form two side drums 21. In this axial direction, it is possible to move in a direction facing each other or in a direction facing each other, so that the axial movement of the turn-up unit 101 and the bead support unit 102 on the side drum 21 is possible.

16 to 29, the auxiliary forming unit includes a bead positioning device 90 that is movable in the axial direction, a boosting plate 210 that matches the turn-up unit 101, a turn-up calender roll 231, and a turn And a down calendar roll 230. The bead positioning device 90 is capable of loading and positioning the bead 4 and can move along the axial direction of the forming drum 1, so that the bead 4 is formed by the bead positioning device 90 It is transmitted to the axial designated position on the drum 1. The boosting plate 210 pushes the turn-up unit 101 (air-injected capsule) to perform turn-up on the bead 4.

The composite coupling device includes a center calender roll 240, a shoulder calender roll 250, and a gripper 260. The center calender roll 240 can roll the tread section of the green tire of the tire so that the tread assembly 7 and the carcass assembly are basically joined. The shoulder calender roll 250 is two symmetrically installed rollers, and the two shoulder calender rolls 250 can be moved up and down, left and right, and rotated, respectively, so that the shoulder calender roll 250 and the shoulder area of the green tire of the tire are Since the sidewall section can be rolled, it ensures a complete composite bonding of the tread assembly 7 and the carcass assembly. The gripper 260 is capable of gripping the green tire of the tire in the main direction, thereby providing convenience for unloading the tire.

In the tire forming method of the tire forming machine according to the present invention, the following steps are included.

Step 1: The center drum 11 is in a contracted state, and the forming drum 1 is rotated to wind the carcass material 6. 15, the two half drums 110 of the center drum 11 are both in a contracted state, and the forming drum 1 is in a flat drum state, where the forming drum 1 is a carcass material The winding of the material in (6) has already been completed. In one embodiment, the carcass material 6 shown in FIG. 15 includes at least an innerliner and a first ply from inside to outside. In one embodiment, according to different needs of green tire shaping of the tire, the carcass material may further include a chafer fabric and a second ply, the second ply being wound up after the bead's turn-up process is completed You can do

Step 2: The bead positioning device 90 carrying the two beads 4 moves in the axial direction to move the beads 4 to the designated position in the axial direction of the forming drum 1. As shown in Fig. 4, the bead positioning device 90 has already moved the bead 4 to the radial outer periphery of the bead support unit 102, carcass material 6, at this time, the two beads 4 ) Is divided into a first carcass material 6a located on both sides and a second carcass material 6b located in the middle. In one embodiment, as shown in FIGS. 17 and 18, the center drum 11 extends radially to tightly tighten the carcass material 6, and the bead positioning device 90 is a bead 4 Carcass material 6 continues to be tightened by moving the bead 4 axially until it contacts and/or supports the drum shoulder portion of the center drum 11 in the axial direction.

Step 2 further includes step 2-1, but the bead support unit 102 extends in the radial direction to lock the bead 4 in the main direction. In one embodiment, the bead support unit 102 expands in the radial direction to prepare to realize that the bead 4 is turned up into the carcass material 6 by locking the bead 4. As shown in FIG. 18, the bead 4 has a cross-section in contact with and/or supported by the center drum 11, and the radially inner side of the bead 4 is locked by the bead support unit 102, so that the bead (4) does not move relative to the forming drum 1 in the axial direction and the radial direction, so the bead 4 can be positioned on the forming drum 1.

Step 3: The auxiliary forming unit assists the forming drum 1 to turn the beads 4 into the carcass material 6. In one embodiment, as shown in FIGS. 18-20, the first carcass material 6a is in close contact with the radially outer side of the turn-up unit 101 (no air injection), and the bead 4 is already a bead. Since it is locked by the support unit 102, when the turn-up unit 101 on the two side drums 21 simultaneously injects air, the first carcass material 6a is upward as the turn-up unit 101 swells. Will be supported. In one embodiment, the boosting plate 210 moves toward the center drum 11 to pressurize the two turn-up units 101, and the two air-injected turn-up units 101 are on both sides of the center drum 11 ( Each of the center drum 11 and the circumferential surfaces of both sides of the center drum 11), so that the first carcass material 6a is turned upside down and the second carcass material 6b Laminated on top, and further the beads 4 are tightly turned up in the carcass material 6.

After completing the turn-up step of step 3, the carcass material 6 has a cylindrical shape, is in close contact with the outer circumferential surface of the center drum 11, the boosting plate 210 is recovered, and the bead support unit 102 is The state of locking the bead 4 is maintained, and the two half drums 110 of the center drum 11 are always in an extended state. The boosting plate 210 of the tire forming machine according to the present invention is movable relative to the forming drum 1 and applies axial thrust to the air-injected turn-up unit 101 to be located on the turn-up unit 101 Turn-up is performed on the first carcass material 6a.

Step 4: The turn-up calender roll 231 rolls both sides of the cylindrical carcass material 6 in step 3, so that the first carcass material 6a is in close contact with the second carcass material 6b. Thus, the beads 4 are tightly wrapped in the carcass material 6. In one embodiment, as shown in FIG. 21, the turn-up calender roll 231 moves toward the drum shoulder portion of the center drum 11, and after turn-up, the first stacked on the second carcass material 6b The carcass material 6a is pressed and stitched. At this stage, the bead support unit 102 maintains the locked state of the bead 4, and the two half drums 110 of the center drum 11 are always expanded.

Step 5: The second ply, the third ply, and the side wall 5 are continuously adhered to the cylindrical carcass material 6 completed in step 4, or the third ply and the side wall 5 are continued. Close. In one embodiment, as shown in Figure 22, the third ply, the side wall 5 is already in close contact. The side walls 5 are located on both sides of the carcass material 6 and off the edge part of the cylindrical carcass material 6. At this stage, the bead support unit 102 maintains a state of locking the bead 4, and both half drums 110 of the center drum 11 are in an extended state. The tire forming machine according to the present invention completes the step of automatically adhering the side wall 5 by controlling the rotation of the forming drum 1 through the forming drum driving box.

Step 6: The turn-down calender roll 230 rolls the part off the edge of the cylindrical carcass material 6 of the side wall 5 into close contact with the cylindrical carcass material 6. In one embodiment, further comprising a step 6-1, the bead support unit 102 is contracted in the radial direction, the side drum 21 and the bead support unit 102 along the direction away from the center drum 11 By moving in the axial direction, one space (that is, the first space) is provided, so that the turn-down calender roll 230 can perform the rolling step in this space. 23, the turn-down calender roll 230 acts on both sides of the cylindrical carcass material 6, and the arc portion of the turn-down calender roll 23 has an edge of the side wall 5 at the edge of the carcass. It ensures that the material 6 can be completely adhered to the arc structure. After the turn-down rolling is completed, the side drum 21 and the bead support unit 102 are axially moved in the direction close to the center drum 11 to reset the position, and the bead support unit 102 of the bead 4 It is reset to the lower position. At this stage, the two half drums 110 of the center drum 11 are always in an extended state. The side drum 21 according to the present invention can be moved in the axial direction relative to the half drum 110, whereby a single space can be formed.

Step 7: The forming drum driving box injects air into the carcass assembly, and the two half drums 110 are moved and matched relative to each other in the axial direction, thereby matching the inner circumferential surface of the tread assembly 7 and the outer circumferential surface of the carcass assembly. To ensure this close contact, the composite coupling device assists the forming drum 1 to roll and compositely combine the tread assembly 7 and the carcass assembly to form a green tire. As shown in Fig. 24, the bead support unit 102 extends in the radial direction to lock the bead 4, and the two half drums 110 are always in an extended state, one end of the bead 4 being a half drum By being contacted and/or supported on one side of (110), the tread assembly (7) and the carcass assembly ensure that the beads (4) do not move in the radial and axial directions when rolling and compounding, and guarantee the production quality of the tire. do.

24 to 25, the forming drum driving box continuously injects air into the carcass assembly, and the composite coupling device already supplied with the tread assembly 7 moves to the corresponding zone of the forming drum 1 (Of course, in other alternative embodiments, the carcass assembly may be automatically matched to the tread assembly 7 on the composite coupling device through the forming drum 1), and the distance between the beads 4 may be reduced during the tire processing step. Until the superstructure value is satisfied, the two half drums 110 are relatively moved in the axial direction and are inserted into each other, where the inner circumferential surface of the tread assembly 7 and the outer circumferential surface of the carcass assembly are in close contact. When the forming drum 1 is rotated by the driving of the forming drum driving box, the center calender roll 240 can roll the contact portion between the tread assembly 7 and the carcass assembly, so that the inside of the tread assembly 7 The main surface and the outer circumferential surface of the carcass assembly are closely attached to form a green tire model.

Step 7 further includes step 7-1, wherein the shoulder calender roll 250 rolls the shoulder and side wall of the green tire, so that both sides of the tread assembly 7 closely contact the carcass assembly. 26 to 27, when the forming drum 1 rotates, the two rollers of the shoulder calender roll 250 move in a direction facing away from each other, thereby rolling the shoulder region area of the green tire model, and the two rollers. Is rotated at the same time as it moves downward so that the rolling load applied by the roller is perpendicular to the sidewall surface, so that both sides of the tread assembly 7 are completely in close contact with the carcass assembly to form a green tire. In the step of step 7, the bead support unit 102 always locks the bead 4, the center drum 11 is always in an extended state and always remains in the air injection state in the carcass assembly.

Since the present invention automatically completes the shaping step of the carcass assembly through step 7, the complex coupling step of the tread assembly 7 and the carcass assembly, the carcass assembly needs to be removed and placed on other shaping drums for shaping. There is no secondary movement of the bead, and the molding precision of the green tire of the tire is improved.

Step 8: The center drum 11 and the bead support unit 102 contract in the radial direction, and the tire forming machine unloads the tire. 28 and 29, after the production of the green tire is completed, the forming drum driving box performs air bleeding on the carcass assembly, and the center drum 11 contracts in the radial direction. The position is reset, and the bead support unit 102 is contracted to reset the position, so that the bead 4 is not locked. Since the gripper of the composite coupling device fixes the green tire in the main direction, after the green tire leaves the forming drum 1, the forming drum 1 moves or the composite coupling device moves up to the tire unloading table, thereby The green tire is gripped and the green tire is placed in a storage area.

Step 8 further includes step 8-1. The two center drums 110 move in a direction facing each other, and the forming drum 1 recovers to the standby state of winding the material of the flat drum. As shown in Fig. 18, after the tire unloading is completed, the side drum 21 and the half drum 110 of the center drum 11 are moved in the axially opposite direction to each other to reset the position, and the forming drum 1 By recovering the flat drum condition), the tire forming machine can continuously produce green tires of the tire.

After the forming drum 1 provided by the present invention completes the material winding, the positioning function of the bead 4 can be satisfied in the turn-up step through contraction expansion in the radial direction of the center drum 11, and Through the opposite movement of the side drum 21 and the half drum 110, a space is provided between the side drum 21 and the half drum 110 to perform a turn-down rolling operation of the molding machine, and the half drum 110 And the side drum 21 are connected, so that the two half drums 110 and the side drums 21 are simultaneously driven so that they can move relatively in the axial direction. Complete the steps. In one embodiment, the composite coupling device can be matched with the forming drum 1, and by completing the composite coupling of the tread assembly 7 and the carcass assembly, green tire primary molding of the tire is realized. Compared to the related technology, the molding method of the present invention enables the primary molding of the green tire of the tire automatically, and removes the carcass assembly on the carcass drum through artificial or mechanical assistance and places it on the shaping drum to perform air injection shaping. There is no need to carry out the movement of the bead 4 of the carcass assembly, thus improving the tire quality.

In the description of the embodiments, the descriptions of the terminology "in this embodiment", "in one embodiment", "in one embodiment", etc. are at least one embodiment of the present invention in which features or features described in that embodiment are described To express that it is included in. In addition, in the embodiment, the description for the description of the term does not limit only the same embodiment. In addition, the depicted features or features may be combined in a manner suitable for any one or several embodiments.

1,2: forming drum 3,10: drum shaft
4: Bead 5: Side Wall
6: Carcass material 6a: First carcass material
6b: second carcass material 7: tread assembly
11, 22: center drum 20: forming assembly
21: side drum 23,101: turn-up unit
24,102: bead support unit 25: shaft housing
26: side drum cylinder block assembly
261: Side drum out cylinder block
262: side drum inner cylinder block
262a: Part 1 262b: Part 2
263: side drum piston 222: drum tiles
2221: 1st drum tile 2222: 2nd drum tile
2223: body portion 2224: finger portion
223: drive assembly 2232: first support member
2233: 2nd slide member 2234: 1st slide member
2235: 2nd support member 2236: cone rod
210: boosting plate
230: Turn-down calendar roll 231: Turn-up calendar roll
240: center calendar roll 250: shoulder calendar roll
260: gripper 30: drive
40: tread drum 50: complex coupling device
60: material supply mechanism 90: bead positioning device
100: tire forming machine 110,220: half drum.

Claims (24)

In the forming drum,
It comprises a drum shaft (3, 10) and two side drums (21) installed symmetrically on the drum shaft (3, 10) and the center drum (11, 22) located between the side drum (21), , The center drum (11, 22) includes two half drums (110, 220) that can be inserted and matched to each other in the axial direction, and each of the half drums (110, 220) has a diameter changeable in the radial direction, The side drum 21 is connected to the half drums 110 and 220 close to one side of the side drum 21 among the two half drums 110 and 220, and moves relative to the half drums 110 and 220. Possible forming drum. According to claim 1,
The side drum 21 includes a shaft housing 25 sleeved on the drum shafts 3 and 10 and a side drum cylinder block assembly 26 installed on an outer circumferential surface of the shaft housing 25, The forming drum is connected to one end of the shaft housing 25 to the center drums 11 and 22, and the other end of the shaft housing 25 to the side drum cylinder block assembly 26. According to claim 1,
The center drum (11, 22) includes a plurality of drum tiles 222 installed in the main direction on each of the half drum (110, 220), each of the drum tiles (222) along the radial direction Removable forming drum. The method of claim 3,
The drum tile 222 includes a first drum tile 2221 and a second drum tile 2222,
The first drum tile 2221 and the second drum tile 2222 are both a body part 2223 and a finger part 2224 that is spaced apart from each other by a plurality of set distances extending from one side of the body part 2223. Molding drum containing. The method of claim 4,
The center drums 11 and 12 are provided to be contracted or expanded, and a plurality of finger portions 2224 of the two half drums 220 are opposed to each other and can be inserted and connected to each other in the axial direction, and the two half drums The main body part 2223 of 220 is spaced apart from each other in the definite state of the center drums 11 and 22 and forms a closed ring jointly. The method of claim 5,
A forming drum in which the side surface and the outer circumferential surface of the ring provided around the body parts 2223 of the two half drums 110 and 220 form a seamless state. The method of claim 5,
The half drums 110 and 220 further include a drive assembly 223 fixedly connected to the shaft housing 25, and the drive assembly 223 includes a plurality of the first drum tiles 2221 and a plurality of the A forming drum capable of driving the second drum tile 2222 to move in the radial direction. The method of claim 7,
The drive assembly 223 includes a first support member 2232, a second support member 2235, a first slide member 2234, a plurality of second slide members 2233, and a plurality of cone rods 2236 and,
The first support member 2232 and the second support member 2235 are fixedly connected to the shaft housing 25 of the drum shaft 10, respectively, and the first slide member 2234 and the first support member 2232 ) Are slidably connected, and the plurality of second slide members 2233 are all slidably connected to the second support member 2235, and both ends of each of the cone rods 2236 are the first slide. The forming drum is pivotally connected to one of the member 2234 and the plurality of second slide members 2233, respectively. The method of claim 8,
The side drum 21 is further provided with turn-up units 23, 101 and bead support units 24, 102 located at one end proximate to the center drums 11, 22 of the side drum cylinder block assembly 26. Molded drum. In the tire forming machine,
It includes a tread drum 40, a forming drum (1, 2) according to any one of claims 1 to 9, two material supply mechanism (60) and a composite coupling device (50),
The tread drum 40 is provided to mold the tread assembly, the forming drums 1 and 2 are provided to mold the carcass assembly, and the two material supply mechanisms 60 are provided with the tread drum 40. Tire forming machine is provided to supply the material to the forming drum (1, 2), respectively, the composite coupling device 50 is provided to combine the tread assembly and the carcass assembly. In the tire forming machine,
Including tread drum, forming drums (1, 2), auxiliary forming unit, composite coupling device, tread drum driving box and forming drum driving box,
The tread drum is provided to mold the tread assembly 7, the forming drums 1 and 2 are provided to mold the carcass assembly, and the tread drum driving box is provided to control rotation or movement of the tread drum. The forming drum driving box is provided to control rotation or movement of the forming drums 1 and 2, and the composite coupling device assists the forming drums 1 and 2 to form the tread assembly 7 and the It is provided to form a green tire by rolling and compounding the carcass assembly, and the auxiliary forming unit assists the forming drums 1 and 2 to turn the bead 4 into the carcass material 6 and form the forming drum. It is provided to turn the side wall (5) to the carcass material (6) by assisting (1, 2),
The forming drums 1 and 2 include two symmetrically installed side drums 21 and center drums 11 and 22 positioned between the two side drums 21, and the center drums 11 and 22 ) Includes two half drums 110 and 220 insertable and matchable in the axial direction, and the side drum 21 is close to one side of the side drum 21 among the two half drums 110 and 220. It is connected to the half drum (110, 220) and is movable relative to the half drum (110, 220), the center drum (11, 22) is provided to contract or expand in the radial direction, the two side drum ( 21) are both bead support units (102, 24) and turn-up units (101, 23) are installed, and the bead support units (102, 24) are tire-forming machines that can contract or expand in the radial direction. The method of claim 11,
Tire forming machine further comprises a bead positioning device 90 capable of at least one axial movement. The method of claim 11,
The auxiliary forming unit further comprises a turn-down calender roll (230). The method of claim 11,
The composite coupling device is a tire forming machine including a center calender roll 240, a shoulder calender roll 250 and a gripper 260. In the tire forming method of the tire forming machine applied to the tire forming machine according to any one of claims 11 to 14,
When the center drums 11 and 22 are in a contracted state, the forming drums 1 and 2 rotate to wind the carcass material 6,
When the center drums 11 and 22 are in an extended state, an auxiliary forming unit assists the forming drums 1 and 2 to turn the beads 4 into the carcass material 6,
When the side walls 5 are closely adhered to both sides of the bead-wrapped carcass material 6, the auxiliary molding unit assists the forming drums 1 and 2 to support the side walls 5 to the carcass. Turning down the material (6) to form a carcass assembly,
The bead support unit 102 extends in the radial direction to lock the bead 4 in the main direction, the forming drum driving box injects air into the carcass assembly, and the two half drums 110 and 220 It is relatively moved in the axial direction to be inserted and matched so that the inner circumferential surface of the tread assembly 7 and the outer circumferential surface of the carcass assembly are in close contact, and the complex coupling device assists the forming drums 1 and 2 to provide 7) The tire forming method of the tire forming machine to form a green tire by combining the carcass assembly with the rolling. The method of claim 15,
In the step of the auxiliary molding unit to turn the bead 4 into the carcass material 6 by assisting the forming drums 1 and 2,
Loading and positioning the two beads (4) through the bead positioning device 90, and moving the two beads (4) in the axial direction to the designated position of the forming drum (1, 2) Tire forming method of tire forming machine. The method of claim 16,
In the step of the auxiliary molding unit to turn the bead 4 into the carcass material 6 by assisting the forming drums 1 and 2,
When the bead positioning device 90 moves the two beads 4 to the designated positions of the forming drums 1 and 2, the bead support unit 102 extends in the radial direction to the beads 4 ) The tire forming method of the tire forming machine further comprising locking in the main direction. The method of claim 15,
When the sidewalls 5 are closely adhered to both sides of the bead-wrapped carcass material 6, the auxiliary molding unit assists the forming drums 1 and 2 to bring the sidewalls 5 into the carcass. In this step of turning down on material 6 to form a carcass assembly,
The side drum 21 moves away from the center drums 11 and 22 in the axial direction to give a first space, so that the turndown calender roll 230 moves into the first space, and the carcass material (6) Tire forming method of a tire forming machine comprising rolling a part of the side wall (5) off the edge of the carcass material (6). The method of claim 18,
Before the bead support unit 102 extends in the radial direction,
Two of the side drum 21 is a tire forming method of a tire building machine further comprising the bead support unit 102 is relatively moved in the axial direction until it is located under the bead (4). The method of claim 15,
The tire forming method of the tire building machine further comprising the tread assembly (7) installed on the tread drum by the tread drum is transmitted into the composite coupling device. The method of claim 20,
Before the tread assembly 7 and the carcass assembly are combined into a green tire,
The composite coupling device moves so that the tread assembly 7 corresponds to the position of the carcass assembly on the forming drums 1 and 2, or the forming drums 1 and 2 move so that the carcass assembly moves on the composite coupling device. Tire forming method of a tire forming machine further comprising to correspond to the tread assembly (7). The method of claim 21,
After the tread assembly (7) on the forming drum (1, 2) and the position of the carcass assembly in the composite coupling device correspond,
Tire forming method of a tire building machine comprising two half drums 110 and 220 that are relatively moved in the axial direction and inserted into each other until the distance between the two beads 4 satisfies the ultra-fixed value of the tire processing step. . The method of claim 22,
The two half drums 110 and 220 are relatively moved in the axial direction to insert and match, so that the inner circumferential surface of the tread assembly 7 and the outer circumferential surface of the carcass assembly are in close contact, and the composite coupling device is formed. In the step of assisting the drums (1, 2) to form a green tire by rolling and compounding the tread assembly (7) and the carcass assembly,
After the inner circumferential surface of the tread assembly 7 and the outer circumferential surface of the carcass assembly are in close contact, the forming drums 1 and 2 rotate, and the center calender roll 240 and the shoulder calender roll 250 are the tread. A method of forming a tire of a tire building machine comprising rolling the close contact portion between the assembly (7) and the carcass assembly so that the tread assembly (7) and the carcass assembly are in close contact to form a green tire. The method of claim 23,
The two half drums 110 and 220 are relatively moved in the axial direction to insert and match, so that the inner circumferential surface of the tread assembly 7 and the outer circumferential surface of the carcass assembly are in close contact, and the composite coupling device is formed. In the step of assisting the drums (1, 2) to form a green tire by rolling and compounding the tread assembly (7) and the carcass assembly,
After the shoulder calender roll 250 rolls the shoulder of the green tire, the gripper 260 fixes the green tire in the main direction, and the center drums 11 and 22 contract in the radial direction to reset the position. , The tire forming method of the tire forming machine comprising a vacuum extraction step for the carcass assembly in which the forming drum driving box is air-injected.

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