JPS5850191B2 - tire manufacturing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a tire manufacturing apparatus that presses a breaker layer onto a carcass layer.

In general, a product tire must not only have its outer shape and dimensions, but also the distribution of the force acting on the internal cord, which is mechanically symmetrical with respect to the center cross section of the tire and uniform in the circumferential direction. This is important in terms of tire quality, and if these balances are disrupted, vibrations may occur during driving, and maneuverability may deteriorate, which is dangerous.

Particularly in radial tires, the breaker layer is an important strength member, but since the cord inside it does not reach the bead, the breaker layer is displaced during the process of assembling it to the curved carcass layer. It is extremely important to ensure that the code angles are not distorted.

Conventionally, when assembling, a method was used in which a breaker ply was wrapped around the outer circumference of the curved carcass layer and then pressed with a pressure roller to crimp it. From the viewpoint of improving the properties, the breaker ply is not wound on the curved carcass layer, but the breaker ply is formed into a cylindrical shape in advance on a forming drum exclusively for the breaker directly connected to the curved surface forming device. After being positioned at the center of the carcass layer after being made into a curved surface, the carcass layer is made into a curved surface and assembled with the breaker layer, and then a plurality of sheets are stitched from the outside of the breaker layer using a conventionally known stitcher roll. Some manufacturers have adopted a method of crimping the breaker ply and carcass ply at the same time.

In addition, some manufacturers have adopted a method in which a layer of elastomer, which will become the ground contact layer of the completed tire, is wrapped around the outside of the breaker layer, and then the elastomer layer is placed in the center of the carcass layer as described above, and the tire is assembled.

However, in these methods, since each breaker ply and the carcass are crimped with a rotating roller, the breaker ply in particular may be disturbed or the breaker ply may be displaced, so it cannot be said to be a sufficient improvement. Even if the breaker layer is prepared in advance, the breaker forming device is integrated with the carcass curved surface forming device, so only one set of breaker layers is prepared at a time between molding cycles. There is a slight time lag between the time required to assemble the layers and the time required to prepare the carcass layer to receive the breaker layer, and there may be downtime for assembly or preparation operations on either side. It is inevitable that it will happen.

In addition, from the perspective of improving the performance of product tires, radial tires have been proposed that use a special breaker ply with only one wide breaker ply, folded back at both ends, or a special breaker layer with different cord angles across the width. , the time required to assemble such a breaker layer is incomparably longer than the time required to simply assemble a known breaker layer on a laminate, and requires a long molding time. Methods and devices that are directly connected to the converting device are inconvenient because the above-mentioned downtime increases.

Therefore, the present applicants have devised a method for assembling a radial tire, in which the breaker layer is formed by firmly pressing the plies together without disturbing the angles, using a dedicated process and equipment independent of the equipment that turns the carcass layer into a curved surface. The present invention proposes a method and various devices for assembling the completed breaker layer on the carcass layer, but the present invention provides an apparatus for converting the breaker layer completed by a separate molding process and device into a curved carcass layer. The present invention provides an apparatus for efficiently manufacturing radial tires by assembling the receiver into the carcass layer with high precision.

The device according to the invention thus comprises a first, second, third and fourth device, which according to a preferred embodiment is mounted on a collapsible rigid drum with an outer diameter corresponding to the inner diameter of the breaker layer to be completed. After wrapping the breaker ply around the breaker ply, the first step is applied from the outside of the breaker ply to the entire surface at the same time, that is, during co-crimping, there is no relative movement between the crimping surface and the surface of the breaker layer, and the first layer is firmly crimped. After the breaker layer is completed with the first device, the breaker layer is gripped from the outside with a divided practical cylinder having an inner surface that matches the outer diameter of the breaker layer, and transported to a third device described later. a second device for holding the breaker layer conveyed by the second device, and a third device configured to be expandable and contractible in the inner portion of the breaker layer transported by the second device, and for changing the grip from the outside grip of the breaker layer to the inside grip by the second device; The breaker layer is gripped from the outside of the breaker layer held in a circular shape by a third device, and the breaker layer is transferred to a position corresponding to the center of the carcass layer after the breaker layer is gripped and formed into a curved surface. The fourth step is to curve the carcass layer inside the breaker layer.
A tire which is specially designed so that when the breaker layer is transferred from the first device to the fourth device, the center of the breaker layer when molded in the first device coincides with the center of the force residue layer. The present invention provides manufacturing equipment for.

In the embodiments to be described later, a method for manufacturing a radial tire having a laminated breaker layer will be simply described, but it is also possible to use the first device as a device for forming a breaker layer with folded ends.

Also, when assembling a single layer of elastomer for the ground plane on the outside of the breaker layer completed in the first device, the outer gripping portion of the second device and the outer gripping portion of the fourth device are replaced with elastomer layers. It can be easily implemented.

According to this device, (1) each breaker ply can be firmly crimped without disturbing the angle.

(11) Even when a special breaker layer with folded edges that requires a long time and skill to form is assembled, the efficiency of the fourth device is not reduced.

(11D There is no distortion during storage of the prepared breaker layer.

Gv) The position of the center of the breaker layer in the first device matches the center of the carker layer in the fourth device, so that it can be assembled with high precision.

Therefore, it is possible to efficiently produce tires of good quality.

Next, the present invention will be specifically described based on embodiments shown in the drawings.

A is a first device that molds a breaker layer or a single layer of breaker layer and elastomer, and a second device C that grips and transfers the breaker layer formed by the first device a is a device that has already been transferred. The third device d transfers the breaker layer held inward by the third device C from the inside grip to the outside grip, and transfers it to the center position of the carcass layer. , the fourth device e for completing the green tire by converting the carcass layer into a curved surface is a track for guiding the breaker layer completed in the first device a to the third device or to another storage location by the second device, A closed loop is formed, and the empty second device is guided to the first device a position after the breaker layer has been supplied.

The first device a1, the third device c1, and the fourth device d are arranged at appropriate intervals along the trajectory e.

Next, each device will be explained in detail based on FIGS. 2 to 5.

CI) First device a (Fig. 3-a) The first device a is installed on the pedestal 1 (has an outer surface that matches the inner diameter of the breaker layer to be completed, and has a breaker layer to be completed). A known collapsible collapse drum 2 having a layer width, a drum shaft 3 rotatably supporting the drum 2, a shaft support of the drum shaft 3 (not shown), a rotary drive device, a stop device, It consists of a headstock 4 (with a built-in device for expanding and contracting the drum 2), and an external crimping device that is moved on a guide 5 installed on the pedestal 1 from a standby position to the drum position by a drive device (not shown).

The external crimping device includes a bracket 6 that moves on the guide 5.
Bladder gripping ring 1°8.9 and bladder 10 fixed to
The rings 1, 8 and 9 grip the bladder 10 as shown, and inflate and deflate the bladder 10 with pressure fluid sent from a pressure fluid supply device (not shown).

(If) Bogie device f that runs on the main track e1 fixed on the ceiling of the second device
is self-propelled and runs on a track with wheels 19 by rotating a drive shaft 12 by a motor 11 mounted on a truck.

The motor 11 is a current collector 13 protruding from the truck f, and receives power from an electric wire 14 installed on the ceiling.

As will be described later, the current collector 13a is used when the main line of the track e is running, and the current collector 13b is used when the main line is running from the track e to the first device and the third device.

Reference numeral 15 denotes a connection box, which is a push button control box (not shown) installed on an arm 16 suspended from the trolley f, and a limit switch 1γ of a rear-end collision prevention detector, a stop position detection IJ, and a stop position detection IJ Mitswitch 18. The motor 11 is controlled to drive and stop.

An arm 16 that moves on a guide 20 in a direction perpendicular to the traveling direction of the truck is suspended on the lower surface of the truck f.

The suspension part rotates a shaft 23 with a bevel gearbox 21 and a bundle 22 installed at appropriate positions on the arm 16, and a pinion gear 2 that meshes with a rack 24 fixed to a truck f.
5, the arm 16 and the gripping device mounted on the arm 16 can be moved by the operator's operation of the bundle 22 between the position shown by the solid line in FIG.

A bracket 26 is fixed to the lower end of the arm 16, and a boss 21 is fixed to the slide block 20. A guide fixed to the bracket 26 is guided on a slide block 28.
is connected by a link 31 to a rod 29 that is slidably guided by the bracket 26 .

Therefore, by reciprocating the rod 29, the slide blocks 30 approach and move away from each other synchronously.

The slide block 30 has a semi-circular gripping ring 32 having an inner diameter matching the outer diameter of the breaker layer to be gripped.
is removably fixed.

The upper and lower gripping rings 32 constitute a practical cylindrical surface, as shown in Figures 1-c, when the slide blocks 30 approach each other, and grip the breaker block from the outside.

Fig. 2-e shows the shape when gripping a breaker layer including one layer of elastomer.

As is clear from this figure, in this case, the shape of the inner surface of the gripping ring 32 is preferably matched to the shape of the elastomer for the contact surface.

The rod 29 is guided by the protrusion of the boss 21 and connected to both ends of an arm 35 rotatably mounting a nut 34 having a bundle 33 engaged with a screw at the tip of the protrusion.

Therefore, due to the rotation of the bundle 33, the nut 34 is moved axially by the screw action, the arm 35 is moved axially, the rods 29 at both ends of the arm 35 are also moved axially, and the slide block 30 is moved by the link 31. The grip ring 32 fixed thereto can be changed from the solid line state shown in FIG. 2-c to the two-dot chain line state.

It is also possible to replace the gripping ring 32 when the diameter and shape of the breaker layer to be gripped changes.

It is also possible to use a power drive instead of the bundle and operate it with a push button.

The aforementioned trajectory e consists of a main trajectory e1, a switching trajectory e2, and a branch trajectory e3.

The main line e1 forms a loop from the first device to the third device and back to the first device, and the branch line e2 is arranged with each part of the first device and the third device, and the switching line e21'i connects the second device to the main line. e
1 to branch line e3.

Since there is no fundamental difference between the first device and the third device, the explanation will be based on the first device.

The branch line e3 is arranged parallel to the main line e1, and the switching line e2 reciprocates between a part of the main line cut out and the branch line e3.

That is, the branch line e3 is fixed to the ceiling like the main line e1, and the switching line e2 is guided by a rail 36 fixed to the ceiling, and rotatable wheels 38 and a drive device are connected to a frame 31 to which the switching line e2 is connected. It is possible to freely reciprocate between the main line e1 and the branch line 03 at g.

When the switching line e2, which was in the main line position before switching, comes to the branch line position, a spare line parallel to the switching line is arranged in parallel with the switching line e2, and a frame 37 is attached so that the main line can pass through. connected.

The second device, which stopped in response to a stop signal on the switching line e2, moved parallel to the branch line by the switching line, when the main line side current collector 1
3a, the power supply from the main wire 14 is cut off, and the branch line side current collector 13b comes into contact with the branch line side electric wire 14', and the power supply is resumed.

Therefore, the movement of the second device on the branch line by the motor 11 can be performed at will by the operator using the aforementioned push button operation box (not shown).

The second empty section without a breaker layer that has traveled on the main line e□
The device is operated by an operator of the first device who uses an operation switch (not shown) to project a stop command cam plate (not shown) onto the main track, and a limit switch 1 installed on the bogie f of the second device.
It is easily understood by those skilled in the art that the motor 11 is stopped when the motor 8 touches this, so a detailed explanation thereof will be omitted.

When the second device stops on the switching line, the operator presses the switching line operation switch to switch from the main line to the branch line.

Of course, it is also possible to automatically switch the switching line at the same time as stopping.

By switching from the main line to the branch line, the power supply from the electric wire 14 will be cut off and power will be newly supplied from the electric wire 14', but by canceling the electric power from the electric line 14, all electricity commands on the main line will be canceled and the electric power will be supplied from the electric wire 14'. When power is resupplied, it is easy to give first priority to the command from the pushbutton operation switch (not shown) provided on the arm 16, so the stop command of the limit switch 18 is canceled on the branch line, and 2. The equipment can be used at the discretion of the operator.

Also, when the necessary work is completed and the breaker layer is grasped and returned from the branch line to the main line, it is necessary to leave the electric wire 14' once and then return it to the electric wire 14'.
It is also possible to give priority to the main line signal when it comes into contact with the main line.

In other words, even if the worker stops the second device on the switching line and then presses the switch on the switching line to return to work on the first device, the second device will automatically switch back to the main line as soon as it returns to the main line. You can also run on the line.

These electrical circuits are easily understood by those skilled in the art, so detailed descriptions thereof will be omitted.

Although the electrical circuit has been explained above as manual pushbutton operation, it is also possible to add an automatic control circuit for automatic operation.

(III, l The third device C and the fourth device d In Figure 5, X-X indicates the axis of the fourth device d, which is located at an appropriate height from the horizontal foundation and is parallel to the horizontal foundation. It is parallel to the orbit e1.e3.

Y-Y represents a plane perpendicular to the X-X axis, which coincides with the center of the tire to be molded in the fourth device d.

Z-Z indicates an axis perpendicular to the horizontal axis X-X axis and perpendicular to the horizontal foundation (perpendicular to the fifth factor surface diagram), Matches the center of rotation.

V-V is the X-X axis around the X-axis. corresponds to that rotated by 90′, and It coincides with the axis of the third device.

Wo-Wo A plane parallel to the Y-Y plane indicates the center of the fourth device for gripping, transporting, and assembling the breaker at its standby position.

W, -Wl Said W.

- Corresponds to the Wo plane rotated by 90 degrees around the Z axis.

W2-W2 corresponds to the Y-Y plane rotated by 90 degrees around the Z-axis.

(I[[-1) Third device C The third device C is a breaker layer that has been previously formed into a circular shape by the first device a and has been gripped outwardly by the second device, and is gripped inwardly by the fourth device d. This is a device that allows the grip to be held outward again, and has a hollow shaft 41 fixed to a stand 40a erected on a horizontal frame 40, and inside the hollow shaft 41 is a threaded rod rotatably connected to the shaft 41. Mount 42.

The threaded rod 42 has left and right reverse threads at the W2-W2 position, and a nut 43 is engaged with each threaded portion, and a guide pin 45 is fixed to a bub 44 that slides on the outer surface of the hollow shaft 41. It passes through the notch hole 41a of the hollow shaft 41 in the 1-2 axial direction and is fixed to the nut 43.

A plurality of fingers 4 parallel to the bub 44 and the V-■ axis
6 is connected with a pin by a lever 47 as shown.

Therefore, by the rotation of the threaded rod 42 connected to the motor 48 mounted on the stand 40a, the bubble 44 changes to W2.
-W2 position is approached and left periodically, and the fingers 46 are synchronously expanded and contracted around the axis (V).

The tip of the hollow shaft 41 has a tab 38, and the surface i of the knob 38 is 11 distances from the W2-W2 position, and when the boss 27 of the second device is connected, the second device Dimension 1
It is made to match 2.

(See Figures 4-C and 5-a). Therefore, the third-e
As shown in the figure, the center of the breaker layer formed on the first device a is gripped at a position 11 from the surface of the boss 27, and then the breaker layer is gripped with the bubble 38 by the third device as shown in FIG. 4-c. You can move it from the side to the position 11.

(■-2) Fourth device d The fourth device changes the breaker layer, which was gripped inwardly in a circular shape by the headstock device A that curves the carcass layer and the third device C, to be gripped outwardly, and the third device It consists of a tailstock device B which transports the carcass layer from the W2-W2 position of the device C to the center Y-Y position of the carcass layer of the headstock device A, and also includes and closes the carcass layer and the breaker layer with a mold member.

The headstock device A consists of a conventionally known device for forming a carcass layer into a curved surface, a side wall member on one side of a mold member, and a driving device thereof.

Since the device for forming a carcass layer into a curved surface is well known, it will be briefly described.

The shaft 49 is a main shaft rotatably mounted on a housing 51 installed on a base 50, and has a passage 52 for pressure fluid supplied from a pressure fluid supply source (not shown) inside. A known means is provided at the tip so that the tail stock shaft 53 can be freely connected and separated, and the shaft 53 does not block the rotation of the shaft 49 after being connected.

Further, on the outside of the main shaft 49, there is an outer shaft 54 that can slide on the main shaft in the X-X axis direction and that can rotate simultaneously with the main shaft 49 using a known method (not shown), and an X-X axis that extends on the outer shaft 54. Sleeve shaft 55 that is slidable in the direction and rotatable at the same time as the main shaft 49
The outer shaft 54 and sleeve shaft 55 are connected to YY by known means.
It slides on the X-X axis synchronously and symmetrically with respect to the axis.

A flexible bladder 56 is held at the tips of the outer shaft 54 and the sleeve shaft 55 by a known method, and a bead link 57 attached to the sleeve shaft 55 and a bead link 58 on the tail stock device B side are connected to each other. The bladder 56 and the green carcass are curved with the Y-Y plane as a plane of symmetry using the pressurized fluid supplied from the fluid passage 52 in the main shaft 49 as needed. The bladder 56 can be made into a cylindrical shape as shown by discharging pressure fluid from the toroid body.

The side wall type member 59 slides on the sleeve shaft 55 by expansion and contraction of a cylinder mounted on the housing 51, and the beet ring 57
They may be placed in different positions, or moved away from each other (as shown).

Tailstock device B A cylinder 616 is rotatably mounted around the Z-Z axis by a known method on a housing 60 fixed to the base 50.
2, and a breaker gripping device and a mold member driving device are attached to the tip of the cylinder 61 via a slide block 63 that slides on the rod when the rod of the cylinder 62 is extended.

Also, with the slide block 63 in the state shown in Figure 5-b, extend the rod of the cylinder 62 and connect the bead ring 58 to the tip of the outer shaft 54 of the headstock device A as shown by the two-point acute line. You can also do it.

Inside near the tip of the cylinder 63 is a tail stock shaft 53 which is only rotatable.

Therefore, the shaft 53 is rotatable at any position along with the forward and backward movement of the rond.

A bracket 39 is fixed to the table stock shaft 53 at the end of the tail stock shaft 53 protruding from the rond part of the cylinder 62, and a bead ring 58 is attached to the bracket 39.

Therefore, the bead ring 58 and the bracket 39 are rotatable together with the tailstock shaft 53.

Further, the tail stock device B is rotated around the Z axis by a rotary drive device (not shown).

-W. If the position is set to the Wl-W1 position and it moves further forward, it will be connected to the third device C as shown by the two-point dotted line in FIG. 5-b.

-The Wo position is the W2-W2 position.

(In the two-dot chain diagram shown at the position of the third device C, the left side of the ■-■ axis shows the state of the fourth device, and the right side shows the second device.

) At this time, the end faces j and W of the bracket 39.

-W. The positional distance 11 is the same as the distance between the end surface i of the pub 38 and the W2-W2 position in the third device.

Therefore, the breaker layer formed with its center at a distance of 11 from the end of the drum shaft of the first device a coincides with the center of the breaker gripping device i□ from the end face of the bracket 39 of the fourth device d, that is, the center of the carcass layer. It will be reproduced at the position you want.

The side wall type member 64 is mounted on a disc 66 attached to the tip of a guide rod 65 that can slide on the slide block 63 in the X-X axis direction, and is supported by the expansion and contraction of a cylinder 67 fixed to the slide block 63. It goes back and forth depending on the situation.

Each of the arcuate gripping rings 68 divided into a plurality of parts is attached to a bracket 69 installed on the slide block 63.
A guide rod γ0 is provided so as to be movable in the radial direction about the -X axis, and the guide rod 70 is slidable on the bracket 69.

Further, the grip ring 68 is driven by a cylinder 11 (not shown) fixed to the bracket 69.

The bracket 69 also has a locking device for closing and integrating the gripping ring 68 and the side wall type members 59 and 64.

The lock device consists of a lock block 72, a guide rod γ3, and a cylinder 14.

The cylinder 74 is mounted on the bracket 69, and the cylinder 74 is connected to the lock block γ2.
The lock block 12 is moved in the radial direction by a guide rod 73 slidably mounted on the lock block 9 .

As shown in the drawing, the grip ring 68 has a conical cross section at both outer peripheral edges thereof, and fits into the conical surfaces of the side wall members 59 and 64.

Further, the conical surface of the lock block 12 is connected to the side wall type members 59, 6.
It is adapted to fit into another conical surface other than the above-mentioned one of No. 4.

Therefore, if the cylinder γ1 makes the grip ring 68 into an annular shape, the side wall type members 59 and 64 are fitted to the grip ring 68, and the lock block 72 is fitted to the side wall type member using the cylinder 74, the grip ring 68 becomes as follows. Closed by side wall mold member 59°64, the side wall mold member is locked black 12
will be closed.

The relationship between the gripping ring, sidewall type member and locking block in the closed state is shown in Figure 5-c.

When closed, the gripping ring 68 is continuous all the way around, and the shape of the inner surface corresponds to the outer shape of the breaker layer or the outer shape of the elastomer layer.

Next, manufacturing of tires using this apparatus will be explained.

(1) Pulling the (empty) first device a without a breaker layer into the branch line.

The second device that supplied one layer of breaker to the third device C travels along the track C and returns to the vicinity of the first device a.

When the second device required by the first device a reaches the switching trajectory e2 shown in Fig. 3-b, the second device stops.

To stop the second device, the operator of the first device a pushes the stop button of the second device to project the cam plate onto the track e2, and detects the cam plate of the second device that has traveled. The limit switch senses this and stops the motor.

When the second device stops, the drive device g for the switching track e2 shown in Figures 3-a and 3-c operates to shift the switching track e2, where the second device is stopped, to the branch track e3 position.

Here, the subsequent second device, which has been traveling on the main line track e1 while being shifted, stops traveling on the main line track ( After the shift is completed, the switching track is temporarily stopped until the preliminary track arranged parallel to the switching track coincides with the main track e1.

A case where the second device that follows further catches up with the temporarily stopped second device is shown in FIG. 2-b.

It is sensed by the limit switch 11 for rear-end collision prevention detection and the vehicle stops running.

(2) The breaker layer is inserted and the second device is moved onto the branch line track e3 until the axes of the second device and the first device coincide with each other by operating a push button attached to the second device. You can run on it.

The above-mentioned collision prevention device may also be used as a stopping device.

Already, as shown by the two-dot chain line in Fig. 3-b, when the axes coincide, the IJ Mitswitch 11 may sense this and stop the second device.

The second device on the branch track whose axes are aligned and stopped is the third device.
- As shown in figure a, the rotation of the bundle 22 moves it from the two-dot chain line position to the solid line position.

The boss 25 of the second device comes into contact with the end surface of the drum shaft 39, and the center of the breaker-grip ring 32 of the second device matches the center of the drum 2, that is, the center of the completed breaker layer, and stops. do.

(See Figure 3-e) When the second device moves forward, the inner diameter of the grip ring 32 of the second device should be larger than the outer diameter of the breaker layer on the drum (Figure 2-c) Stop at a predetermined position. Then, the bundle 33 of the second device is rotated, and the expanded gripping ring 32 is contracted to firmly hold the breaker layer in a circular shape from the outside.

This situation is shown in the upper half of Figure 3-d.

Next, if you fold the drum folding device of the first device,
The breaker layer is held circularly in a second device and transferred from the drum of the first device to the gripping ring of the second device.

This state is shown in the lower half of Figure 3-d.

Next, by rotating the bundle 33 in the opposite direction, the third
- Moved from the solid line position in figure a to the two-dot chain line position.

Then, the second device on the branch track is returned to the main track by a reverse operation to that described above.

At the same time as the return, the second device travels on the main line track and is transported to the third device using power supplied from the power overhead line on the main line track.

3) Forming the breaker layer Prior to connecting the second device to the first device, the first device has formed the breaker layer.

With the drum 2 in a cylindrical shape, the shaft 3 is rotated to correctly wind the breaker ply on the drum surface to form a layer.

When a predetermined number of layers is reached, the first pressure bonding device is moved to the drum position, and the first layer of the breaker is strongly bonded from the outside with a Prader 10.

Since the crimping is carried out simultaneously on the entire surface, a good breaker layer is completed without any disturbance in the average strain angle as in conventional roller crimping.

After the crimping is completed, the crimping device returns to the solid line position shown in Figure 3-a and waits for the next molding operation.

After the crimping is completed, follow the procedure 2) from the previous week to connect with the second device and discharge the breaker layer.

4) The breaker layer is received by the third device, and the second device that grips the breaker layer completed by the first device is as described in (1) above.
It is pulled from the main line track to the branch track in the same way.

The state is shown in FIG. 4-a.

The reason that the direction of the second device in the first device is opposite to the direction of the second device in this figure is due to the arrangement of the device with respect to the track as shown in the first figure.

As in 2) of the previous week, stop the second device so that the axis of the third device and the axis of the second device coincide.

Next, the second device is moved from the position shown by the two-dot chain line in FIG. 4-a to the position shown by the solid line. Prior to the movement, the finger 46 of the third device is made to have a smaller diameter than the inner diameter of the breaker layer.

This state is shown in the lower half of Figure 4-b.

In this state, the bundle 22 is rotated to move it to the position indicated by the two-dot chain line.

The boss 27 of the second device is moved to one of the bubbles 38 of the third device.
Upon hitting the surface, the second device stops moving.

Next, the fingers 46 of the third device are expanded to firmly grasp the breaker layer from the inside, and the expansion of the fingers 46 is stopped.

Next, when the bundle 34 of the second device is rotated in the opposite direction to the above rotation (2) and the grip ring 32 is released, the breaker layer is transferred from the second device to the third device.

The center of the breaker layer at this time is 11 points from the end surface of the bubble 38.
is held in position.

(5) Returning the second device to the first device In the same manner as in step 2), the second device is returned from the branch track to the main track, travels to the first device position, and is returned.

(6) Incorporation of the breaker layer into the carcass layer by the fourth device After completing the incorporation work of the pre-cycle, the breaker gripping and conveying device of the fourth device rotates around the Z-axis in Figure 5-b and moves to the third device position. move to.

Of course, the gripping ring 68 of the fourth device has a larger diameter than the outer diameter of the breaker layer gripped circularly inwardly in the third device.

The gripping device of the fourth device moves forward, and the end surface J of the bracket 39
hits the i-plane of the bub 38 of the third device, and the forward movement of the fourth device ends.

After stopping, the gripping ring 68 of the fourth device is retracted to firmly grip the outer surface of the breaker layer gripped inwardly by the third device.

The breaker layer is then transferred from the third device to the fourth device by retracting the fingers 46 of the third device.

At this time, since the distance between the surface j of the fourth device and the center of the breaker grip ring 68 is 1□, that is, the center of the breaker layer is the center of the grip ring 68, and in turn, the center of the breaker layer can be rotated around the Z axis to The center of the breaker layer is aligned with the center Y-Y of the carcass layer when it is moved to the position and is received.

After folding the fingers 46, move the gripping device to W2-W2.
The two devices move from Wl to W11, then rotate around the Z-Z axis and turn W.

- Use Wo8 device.

During this time, the headstock device AgA! In 1, the green tire that has been molded in the previous cycle is discharged, and the carcass layer that is to be molded next is placed in the container.

Once the carcass layer and breaker layer have been inserted, the fourth
Extend the cylinder 62 of the device and attach the bead ring 58 at the tip.
is aligned with the headstock main shaft 54.

Next, due to the extension of the cylinder 61, the slide block 6
3 and the members mounted thereon are moved forward to the Y-Y position.

- Move forward until Wo matches.

It is easy to match the YY position at the forward limit of the cylinder 61.

Next, pressure fluid is continuously supplied to the cylinder 62 so that it moves forward, and while supplying pressure fluid into the bladder 56, the outer shaft 54 and the sleeve shaft 55 are moved symmetrically and synchronously with respect to Y-Y. bring them closer.

Immediately before the end of the synchronous approach of the left and right bead rings 57, 58, the supply of pressure fluid in the bladder 10 is temporarily stopped, and the bead rings 57, 58 and the side wall type members 59.64 are brought closer together. Then, both ends of the gripping ring 68 are met and closed.

Next, the lock block γ2 is fitted onto the side wall mold member 59°64, and as shown in FIG.

After the closure is completed, pressure fluid is again supplied into the bladder 10 at a pressure higher than the pressure supplied before closure, and is so great as to eliminate the need for conventional roll crimping.

As a result, the carcass layer is protected by the side wall member and can be firmly crimped to the breaker layer without disturbing the angle as seen in the conventional crimping roll method.

After the crimping is completed, the closed mold member is released and retracted to an appropriate position, leaving only the bead rings 57 and 58 in the same position, and the necessary layer of elastomer is wrapped from the outside to complete the molding operation.

After the forming operation is completed, the gripping and conveying device retreats and rotates to receive the next breaker layer, while the headstock device takes out the completed green tire and receives the carbonated carcass layer.

Of course, the third device has already received the next breaker layer as described in (4) above.

As described above, the first device can effectively produce the breaker layer independently of the third and fourth devices according to its own molding cycle in cooperation with the second device, and the fourth device can effectively produce the breaker layer according to its own molding cycle, and the fourth device In cooperation with the device, the breaker layer can be effectively incorporated into the carcass layer independently of the first device.

In addition, if the first device incorporates up to one layer of elastomer outside the breaker layer, the grip ring 32 of the second device, the grip ring 68 of the fourth device, and in some cases the side wall type member 5
A similar effect can be achieved by replacing 9.64.

It is also possible to produce a special breaker layer with both ends folded back using the first device.

Further, even if the first device, third device, and fourth device having different production sizes are arranged along the track, many second devices can run.

In this example, multiple sets of first, third, and fourth devices are arranged on a common track, and one set of first, third, and fourth devices are communicated with each other by a closed track. Multiple sets of second units in orbit
The device may be placed.

By using this device, when molding a breaker layer, you can prepare a breaker layer with a special structure such as eliminating angle irregularity, eccentricity, and average pressure rotation of each breaker ply, or with folded ends. Therefore, even if it is produced using an independent, dedicated molding device, (a) it will be held in a circular shape while being incorporated into the carcass layer, and no distortion will occur.

(D) The center of the breaker layer can be aligned with the center of the carcass layer.

(c) Since the molding operations of the first device and the fourth device are independent, their capabilities can be fully demonstrated.

Therefore, high quality tires can be produced efficiently.

[Brief explanation of drawings]

Fig. 1 is a diagram showing means for manufacturing a tire using a tire manufacturing apparatus based on the present invention, Fig. 1-a is a front view of the second device, and Fig. 2-b is a diagram showing B-8 in Fig. 2-a. Arrow view, 2nd-
Figure C is a view from the C-C arrow in Figure 2-a, and Figure 2-d is a view from ''.
Fig. 2-e is a diagram showing another shape of the gripping link 32, and Fig. 3-a is an enlarged view of part D in Fig. 1-a. Fig. 3-b is a view of Fig. 3-a viewed from the left side, Fig. 3-c is a view of Fig. 3-a viewed from above, and Fig. 3-d is a view showing the state at the time.
The figure is an E-E arrow view of figure 3-a, and figure 3-e is a view of figure 3-
This is a partial sectional view of the lower part of Figure 4-a, and the second
It is a diagram showing the state when the device has moved to the third device, and FIG. 4-b is a GG arrow view in FIG. 4-a, and FIG.
Figure c is a partial sectional view of part H in Figure 4-a, and
Fig. 5-a is a diagram showing the arrangement positions of the third device and the fourth device, with a part thereof shown in cross section, and Fig. 5-b is an enlarged view of the first part in Fig. 5-a. a...First device, b...Second device, C
...Third device, d...Fourth device.

Claims (1)

[Claims] 1 Parallel installation in which a single layer of annular breaker is formed in a separate molding process in a tire manufacturing device in which a single layer of annular breaker pre-formed in a separate molding process or a single layer of a breaker having a single layer of elastomer for the contact surface is incorporated into the carcass layer. a plurality of first devices that grip and convey the outer periphery of a single layer of annular breaker molded by the first device; A plurality of third devices installed in parallel to grip and receive the receiver, a plurality of third devices installed in correspondence with the third device that receives the annular breaker layer placed in the third device and incorporates it into the carcass layer. a fourth device, wherein the second device is configured to travel on a track installed in a loop between the first device and the third device. manufacturing equipment.