JPS5828365A - Green tire case transfer in tire manufacturing apparatus - Google Patents

Abstract

PURPOSE:To construct a green tire case transfer simply and lightly in weight by composing a holding mechanism for outwardly holding a green tire case of three holding pawls, elevationally movably disposing one of the pawls and rockably disposing the other two to be stretchable in cooperation with the elevational movements. CONSTITUTION:A holding device is composed of a post 50 having a leg secured to a bracket 20, an arm 51 and a boss 52 provided at the post 50, rods 53, 54 slidably provided, arm 55, cylinder 56, circular-arc-shaped segments 57, 58, and circular-arc-shaped segments 60-63 rockable by a pin 59. The device is further composed of bars 65, 65 which connects the lower and upper sections of the segments 60, 62 and 61, 63, die rods 66, 67 rotatably connected at one ends to the bar 65 and at the other ends to the suitably positions of the post 50, and a roller 68 rotatably mounted among the segments 60-63.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a green case transfer 1 in a tire manufacturing apparatus used in a two-stage molding method for radial tires.

Assemble green radial tires.

As a molding method, a two-stage molding method is widely adopted.

This is done by assembling a cylindrical green case in the first stage forming device, and transforming this green case from a cylindrical shape to a troigle shape in the second step forming device, and attaching a belt and tread to the outer periphery of the green case to create a green radial tire. This method involves completing the tire.

In the case of this method, conventionally, when transferring the above-mentioned cylindrical green case from the first stage molding device to the second stage molding device.

(1) Remove the assembled green case from the first stage molding device.

(2) Place the removed green case on the transportation trolley.

(3) Transport the green case using a trolley to the green case storage area between the first stage molding device and the second stage molding device.

(4) From the storage area to the desired green case transport platform. Place it in a car and soak it until it reaches the first stage molding equipment.

(5) Install the green case in the second stage molding device.

These tasks rely on humans, which not only requires a great deal of labor, but also requires time-limit management of green cases at the storage facility, which is cumbersome, requires a large storage space, and requires transportation. There were drawbacks such as the fact that the green case was contaminated or deformed during the production process, making it impossible to produce high-quality tires.

Therefore, in order to transfer the green case assembled in the first-stage molding device to the second-stage molding device, a series of operations were performed mechanically and automatically to eliminate the above-mentioned drawbacks and to eliminate redundancy with a simple configuration. As a green case transfer 1 in tire manufacturing equipment that does not require a large planar space, it is capable of reciprocating in parallel along the axis above the first stage molding equipment and the second stage molding equipment arranged on the same axis. A traveling device is installed in the traveling device, and the traveling device is in a lowered position for receiving the green case from the first stage molding device and in a lowered position for delivering the green case to the second stage molding device, and the green case is in a horizontal state. Keep it to
A lifting device that can be raised and lowered vertically.

We proposed a green case transfer equipped with an expandable and retractable gripping device that grips the green case from the outside.

What is important with green case transfers like this!
4. Not only can the green case be reliably centered and gripped, but it also has a single case.

The configuration is simple and economical.

The present invention has been proposed in view of the above points.

The object thereof is to provide a green case tray/spout 7 in a tire manufacturing apparatus that can satisfy the above points.

The present invention provides a green case in a green case transfer 7 in a tire manufacturing device that outwardly grips a cylindrical green case assembled in a first stage molding device and transfers it to a second stage molding device. The gripping mechanism for outward gripping is composed of three gripping claws, one of which is movable downward in -E, and the other two are movable downward in -F. The mechanism is characterized in that it is swingably mounted so that it expands and contracts in conjunction with the vertical movement of the gripping mechanism. Since the two gripping claws can be expanded and contracted in conjunction with each other, it is possible to securely center and grip the green case from the outside, and the expansion and contraction configuration of the gripping claws is simplified, making it lightweight, compact, and powerful. An economical green case tra/suf7 can be provided.

The present invention will be explained below based on two examples.

In FIG. 1, A is a device for forming a cylindrical carcass band on a carcass pad forming drum a that can be expanded and contracted;
In B, after the cylindrical carcass band is received on the expandable green case forming drum b, the bead core is wrapped at both ends of the carcass band, and the sidewall component of the tire is then attached to form the cylindrical carcass band. The device for forming a green case, C, is a band transfer device Dl that transfers the carcass band from the carcass band forming drum position a to the green case forming drum position b;
E is a device for forming an annular belt trend structure on a belt tread structure forming drum d that can be expanded and contracted.

A device for receiving the cylindrical green case in a freely expandable drum device e to form a toroidal shape, and further assembling the annular belt/tread structure and press-molding it to complete a green tire.

F is a belt/tread transfer TG that transfers the bait annular belt/tread structure from the drum d position to the drum e position; TG is a cylindrical belt/tread structure from the green case forming drum b position to the drum e position 6L; Green case transfer 1
As described above, a two-stage radial tire manufacturing apparatus is constructed.

Next, the configuration of the green case transfer IG will be explained in detail.

The Gree-7 case transformer 77G is composed of a track G-1, a lifting and traveling device G-21, and a gripping device G-8.

The track 0-1 is a rail 1. which is arranged parallel to the X-X axis force in FIG. It consists of a cross beam 2 for supporting the rail 1 from the ceiling or from the ground by a support 8, and stoppers 4 and 5 provided at appropriate positions on the rail 1. The stopper 5 is used to determine the position (Y+Y+) at which the transfer starts descending to receive the green case, and is placed against the transfer cart.The stopper 5 is used to determine the stop position (Y+Y+) for transferring the transfer 1 to the drum e as a green case. Y4
This is for determining Y4), and is designed to be applied to the truck part of transfer 1.

In addition to the above-mentioned stoppers, there is also a fixed position stopper (Y2゜Y2) for receiving the green case on drum b, and a movable stopper that determines the position (Ya-Ya) from which it starts descending to deliver the green case to drum e. Although it is equipped with a stopper, these are not shown.

The lifting and traveling device G-2 includes a motor 6 fixed at a proper position on the rail 1, a wheel 7 mounted on the rail 1 so as to be able to rotate once, and a sprocket 8 provided on the output shaft of the motor 6. , a sprocket provided on the input shaft of the wheel 7.

A wire rope 12. which is driven by the wheel 7, has both ends of a chain 102 tied to the wheel 9 and is secured to a proper position on the truck frame 11. A wheel 1 rotatably mounted on the rail 1 to apply appropriate tension to the wire rope.
The truck frame 11 has a plurality of sets of wheels 14 that roll on rails l.

Therefore, when the motor 6 is rotated, the wire rope 12 is pulled and the bogie frame 11 can be run to the right or to the left. Predetermined position with Soto Suinochi・(Y+Y+.

Y2-Y2 + Ya Ya r Y4 ”< )
The cart can be stopped at a predetermined position by detecting that the motor 6 has come and stopping the motor 6.

In addition, the two-carriage frame 11 has wheels 1 rolling on the rail 1.
Support column 11-1 on which 4 is mounted. A guide rail tt-2 is fixed at a proper position on the support column 11-1 and is arranged parallel to the rail 1.
．． The arm 15. above is swingably suspended at a proper position on the arm 11-2 with a pin 81. Wheels 16-a, + 6-b+ 16-C, wheels + rolling on the rail 11-2
6 a - c placket 17. wheel 16
- An arm 18 suspended swingably about the axis a. A rod 19 is swingably suspended from a pin 32 at a proper position on the bracket 17. A bracket 2o+tjT is suspended from the other end of the arm 18 and rod 19 by a pin 29°80.
'A pin 21 rotatably connects the arm 15 to a proper position of the L arm 18. @Motor 22 with an excitation release type brake fixed at a suitable location on the trolley frame 11゜The motor 2
2, the winding drum 261 is driven by the sprocket 28° 24 and the chain 25; J-27. It has a lifting device comprised of a wire rope 28 which has one end secured to the winding drum 26 and the other end secured to the tip of the arm 18.

Here, when the distance between the axes of the pin 31 and the pin 21 is L, the distance between the axes of the wheel 16-a and the pin 21 and the distance between the axes of the pin 21 and the pin 29 are also L,
The axis of pin 21 is located on an imaginary straight line, and the axis of pin 31 is on an imaginary vertical line passing through the axis of pin 29.

Also, pin 81. Axle center of wheel 16a, wheel】6-c
The axis of the wheel 16-8 and each axis of the pin 29°80.112 are arranged to form a parallelogram.

Therefore, when the motor 22 is rotated to drive the winding drum 26, the wire rope 28 is wound up, the arm 15 swings counterclockwise in FIG. 2, and the bracket 17 moves rightward on the guide rail 11-2. The locus of the pin 29 is moved vertically upward from the initial position while keeping the bracket 2o in a horizontal state. And at the limit of increase,
The state shown by the dashed line in FIG. 2 is reached.

At the rising limit, when the bracket 17 hits a stopper 83 provided on the guide rails 11-2, a limit switch (not shown) is actuated to stop the rotation of the motor 22.

On the other hand, when the motor 22 reversely rotates and the winding drum 26 reversely rotates, the arm 15.18 descends due to its own weight and the weight of the gripping device, and is brought into the state shown by the solid line in FIG.
The bracket 17 is attached to the stopper 84 provided at the appropriate location of
At the same time as the rotation of the motor 22 is stopped by actuating a glue switch (not shown).

The above lifting and lowering operations are performed using the y, -y, and y positions shown in Figure 1.
,, -ya position, so the power source for the Kamaki motor 22 is to receive power from the outside only at the above two positions, by installing a power distribution shoe 85 fixed at a suitable location on the rail 1 side and a power distribution shoe 85 between the two bogie frames 11. A fixed power receiving shoe 86 is provided at a proper location.

Therefore, the motor 22 is not driven (that is, does not descend) while traveling on the rail 1 (YI YI-Yg YB) after reaching the ascent limit.

Also, after reaching the descending limit, while traveling on the rail l (Y
+Y+~Y2 Y2 r ≦-Y8~Y4Y4), the motor 22 is not driven, that is, it does not rise.

This prevents equipment from being erroneously raised or lowered while traveling, which prevents damage to the equipment and eliminates the need to drag thick power lines over long distances.

Further details of the two gripping devices 0-8 are shown in FIGS. 9 and 10. In FIGS. 9 and 10, a part of the bracket 20 for attaching the gripping device of the elevating and traveling device/G-2 is shown by a chain line.

The gripping device G-8 includes a support column 50. having legs fixed to the bracket 20. Arm 51. installed in place on post 5.0. Boss 52 provided on arm 51. Rods 58, 54 . are vertically slidably held on boss 52 . An arm 55. is fixed to the lower end of the rod 5B, 54. One end is connected to the arm 55, the other end is connected to the appropriate position of the support column 50, and the arcuate segment 57.5g is fixed to the arm 65. A pin 59 is attached to each end of the arcuate segment 57.5g fixed to the arm 65. arcuate segments 60 to 68 . arcuate segments 60 and 62. and 61
Bar 6 connecting the lower part and -E side of 68 and 68, respectively.
4.65° Tie rods 66° 67 rotatably connected at one end to the par 65 and at the other end to an appropriate position on the support column 50, respectively.
A roller 68 rotatably mounted between each arcuate segment
It is made up of.

In addition, the diameter expansion limit and diameter contraction limit of the arcuate segment are as follows.

It is detected by limit switches (not shown) placed at appropriate positions on the pillars 50, and by extending and contracting the cylinder 56 and moving the arms 55 up and down while being guided by the rods 5B and 54, the segments 57. j
8 moves up and down, and accordingly, the segments 60 to 68, one end of which is connected to the tie rod 6°67, swing and expand and contract between the solid line position and the two-dot chain line position, as shown in FIG. It looks like this.

Next, the effect will be explained.

Before the green case Go is completed on the drum b-E, the green case transfer IG is placed against the stopper 4 and stands by at a fixed position, and at this time the gripping bag eO-8 is at its upper limit.

This state is shown in FIG. 1 by a two-dot chain line.

When the green case GC is completed and it is detected that there is nothing that can prevent the second gripping device G-3 from descending.

The motor 22 is driven and the wire rope 28 that has been wound around the two-winding drum 26 is let out.

The gripping device maintains a horizontal state and descends vertically.

Let the trajectory of the grip center at this time be Y, -y.

When the gripping device Q-8 is lowered and the gripping center axis X'-X' is made coaxial with the axis X-X of the drum b, the gripping device Q-8 stops lowering.

This stopping is performed by a stopper 84 and a limit switch (not shown).

After reaching the descending limit and detecting that each arcuate segment of the second gripping device G-8 is at the expansion limit, the motor 6 is driven to pull the wire rope 12 and the trolley frame 11 and the gripping device G-8 reach Yl-y. , moves to position Y2-y, and stops.

This stop is carried out by stopping the motor 6 in response to a stop command from a movable stopper and a limit switch (not shown).

After stopping at the fixed position, each arcuate segment of one gripping device is reduced in diameter by the operation of the cylinder 56 and grips the green case Go from the outside.

When the limit switch for detecting the diameter reduction limit is activated, the drum b is folded.

After the drum b has been folded, the green case transfer yo is returned to the Y, -y position and stopped, and the second gripping device G-8 rises vertically upward.

The state at the ascent limit position is shown in FIG. 1 by a two-dot chain line.

When the gripping device 1G-8 is raised to a position where it cannot block the movement of the transfer C+, the carcass band of the next tire is supplied on the drum b, and assembly of the green case is started.

The green case transformer 71G, which has reached its rise limit, is moved to the second stage molding device in that state and is moved to the second stage molding device.
Stop at position ya and wait.

When the green tire is completed on the drum e and removed from the drum e, and it is detected that there is nothing that can prevent the gripping device G-8 from descending, the two gripping bags M, ()-8 start descending. It is stopped so that the x/x/ axis is coaxial with the x-x axis.

Center Y3- of the green case Go gripped 2 after stopping
Y3 is moved to the Y4-Y4 position and stopped.

At this time, the outer diameter of the drum e is made sufficiently smaller than the inner diameter of the bead portion of the green case GC.

Green case OC being gripped outward at the above stop position
The bead portion of the drum e is gripped by the bead gripping device of the drum e.

Next, each arcuate segment of the gripping device G-8 expands in diameter, and the gripping device G-8 moves up again to the position ys - y, and after stopping at the upper limit position, the green case transfer 7
Gl! It is transferred to a position above the Y+ position and is kept on standby until the secondary green case is completed.

As described above, the green case Go assembled on the drum b can be taken out from the drum b and mechanically and automatically transferred from the drum b position to the drum e position.

(1) Much less labor than the conventional method.

(11) The green case will not become dirty or deformed when it is handled by hand or placed on a two-wheeled vehicle (high-quality tires can be produced).

Since the green cases made in a+++ are processed one after another, the troublesome management of size identification tables and date management at intermediate storage locations, which was conventional, is eliminated.

In addition, since the space above the equipment is used for transfer and waiting, no special flat space is required.Furthermore, the gripping device moves vertically upward when taking out the green case and supplying it, so the length of each equipment can be minimized. In addition, since the gripping device can be raised and lowered only at two fixed positions, the power source for raising and lowering is supplied only at the above two positions, and during running, the upper a The vehicle can be separated from the power source so that the vehicle can run safely, and as a result, there is no need to drag the power line around while the vehicle is running, resulting in a simple device.

Further, the second gripping device moves the segments 57 and 58 up and down by the cylinder 56, and in conjunction with this, the segment 6
0, 61, 62, and 68 are configured to expand and contract, the green case can be reliably centered and gripped, and the configuration is simple, lightweight, and inexpensive.

[Brief explanation of drawings]

Fig. 1 is an overall side view of a radial tire manufacturing apparatus showing an embodiment of the present invention, Fig. 2 is a side view of a green case transfer, and Fig. 8 is a view taken from the first arrow in Fig. 2. Fig. 4 is the second
Figure 5 is a view taken from the direction of the arrow in Figure 2, Figure 6 is a view taken from the ■ arrow of Figure 2, Figure 7 is a view taken from the V arrow of Figure 2, and Figure 8 is a view taken from the direction of the V arrow in Figure 2. #I B... Green case molding device, E... Green tire molding device, G... Green case transfer r 0 1... Track, G-2... Running and lifting device , G-8... Gripping device, Go... Green case, 50... Support column, 51... Arm, 52...
・Boss, 58.54...mouth, de, 55...arm. 56... Cylinder, 57.58... Arc-shaped segment, 59... Pin, 60.61, 62.68... Arc-shaped segment, 64.65... Bar, 66.67...
・Tie rod, 68...roller. /6-θl62/6-6 8b figure

Claims (1)

[Claims] A green case is removed in a green case transfer in a tire manufacturing device in which a cylindrical green case assembled in a first-stage molding device is gripped outwardly and transferred to a second-stage molding device. The gripping mechanism that grips both sides is composed of eight gripping claws. One of the gripping claws can be moved up and down, and the other two can be pivoted on both sides of the gripping claw to expand and contract in conjunction with the vertical movement of the gripping claw. Features green case transfer in tire manufacturing equipment.