JP2639716B2 - Green tire transport device in tire building equipment - Google Patents

Description

Description: BACKGROUND OF THE INVENTION The present invention relates to a green tire conveying device in a tire molding device, and more particularly, to a green tire without deforming a green tire corresponding to various tire sizes. The present invention relates to a green tire conveying device in a tire forming device capable of reliably conveying.

[Conventional technology]

Conventionally, as a method of forming a radial tire for a passenger car,
The first-stage first molding and the second-stage second molding are molded at different places by separate molding machines, and the first-stage green after the first molding is individually or as a lot and conveyed to the two-stage molding machine.
Two-stage molding was performed manually.

However, recently, the first-stage green tire has been installed between the first-stage molding machine main body and the second-stage molding machine main body due to the single-person operation of the first-stage first molding and the second-stage second molding. A system for transporting by a transport device called green transfer has also been considered.

[Problems to be solved by the invention]

By the way, when the first-stage green tire transport device is one set as described above, unless the first-stage green tire is transferred to the second-stage forming drum, the next first-stage green tire is received. Therefore, when the second-stage molding machine stops due to various factors such as material change of a servicer installed on the side of the second-stage molding machine body, the first-stage molding machine also stops. there were.

Also, as for the molding operation time, since the transport operation of the first-stage green tire transport device and the molding operation of the molding device form a series of series, the transport operation of the first-stage green tire takes time, and sometimes the first-stage green tire transport process takes place. In some cases, it takes longer than the molding operation time of a molding machine or a second-stage molding machine.

For this reason, there has been a problem that it is difficult to improve the productivity because the efficiency of the tire molding operation is not improved.

[Object of the invention]

The present invention has been devised in view of such a conventional problem. Between the winding stitcher device and the second-stage molding machine main body, while expanding and contracting according to the size of the green tire, it is ensured. An object of the present invention is to provide a green tire transfer device in a tire forming device that can grip and transfer a green tire to a next process without deforming the same, thereby performing an efficient transfer operation. Things.

[Means for solving the problem]

In order to achieve the above object, the present invention provides, between a winding stitcher device and a second-stage molding machine body, a first-stage green tire molded by the winding stitcher device on a second-stage molding machine body side. A second green tire transport device to be transported and transferred is movably installed, and the second green tire transport device includes a fixed frame surrounding the outer peripheral surface of the green tire at the tip of the main frame; A pivotable arm is mounted so as to surround the outer peripheral surface of the green tire via driving means, and a green that can advance and retreat toward the axis of the green tire at the tip of the fixed frame and at several points of the arm. The gist of the invention is to provide a tire gripping means.

[Function of the invention]

The present invention is configured as described above, and expands and contracts the green tire formed by the winding stitcher device in accordance with the size of the tire, securely grips the green tire, and deforms the green tire without fixing the green tire. This is a device that can be gripped by a gripping means of a green tire provided at several points on the distal end and an arm, and can be reliably transported to the next step, and can be retracted in a short time.

Embodiment FIG. 1 is a plan view of one embodiment of a tire molding apparatus according to the present invention, and 1 is a cylindrical first step in which a carcass ply or a bead is attached endlessly in a radial tire molding operation. 1 shows a first-stage molding machine main body for molding a green tire W. The first-stage molding machine main body 1 is provided with a first-stage molding drum 2 which can be freely expanded and contracted and rotated.

The tail stock 3 is installed corresponding to the first-stage molding machine main body 1, and the tail stock 3 is used in this embodiment in order to enable the first-stage green tire W to be taken out from the first-stage molding drum. It is retractable and movable in the axial direction of the molding machine.

Reference numeral 4 denotes a first-stage servicer that is installed on the side of the first-stage molding drum 2 of the first-stage molding machine main body 1 and supplies necessary materials to the first-stage molding machine 1 in a timely manner.

On the side of the tail stock 3, a winding stitcher device 5 for performing part of the work of the first-stage forming main body 1 is installed. No.-297130, the sheet-shaped tire component material around the bead of the first-stage green tire W formed by the first-stage molding body 1 is automatically wound, and at the same time, the tire The seam of the constituent material is crimped.

However, the winding stitcher device 5 according to the present invention includes:
As shown in FIG. 1, it is slidable in a direction perpendicular to the axis of the first-stage molding machine by an appropriate distance between the A position and the B position, and can be stopped at two positions.

The first-stage forming main body 1 of the winding stitcher device 5
A second-stage molding machine 6 that expands and deforms the first-stage green tire W in a toroidal shape and attaches a tire constituent material such as a belt and a cap tread to the outer periphery thereof is installed on the side opposite to the first side. The second molding machine 6 has a second function having a predetermined function of second-stage molding of the first-stage green tire W.
A step forming drum 7 is mounted.

Reference numeral 8 denotes a stitcher device for firmly attaching tire constituent materials such as belts and cap treads without mixing air, and 9 attaches belts and cap treads in advance to a rotatable belt drum 10 by expanding and contracting. It is a belt forming machine for forming and can be moved on a track at appropriate times.

Reference numeral 11 denotes a transfer device that receives these belt and cap tread molded products from the belt drum 10 and conveys them to the second-stage molding machine 6.

On the sides of the belt drum 10 and the transfer device 11, second-stage servicers 12, 13, and 14 for supplying necessary tire constituent materials to the belt drum 10 in a timely manner are installed.

Reference numeral 15 denotes a second-stage green tire (completed green tire) molded by the second-stage molding machine 6.
3 shows a transport device for taking out the paper.

On the side of the winding stitcher device 5 installed between the first-stage molding machine 1 and the second-stage molding machine 6, X, The first-stage green tire W is moved to the first position via a moving mechanism (not shown) in the Y direction.
A first first-stage green tire transfer device 21 that takes out from the step forming drum 2 and transfers it to the winding stitcher device 5 at the A position is installed. In the meantime, as above,
A second first green tire W is taken out from the winding stitcher device 5 at the B position by a moving mechanism (not shown) in the X and Y directions provided above or on the floor, and is conveyed to the second forming drum 7. Step green tire conveyor 22
Is installed.

FIG. 2 shows the second first-stage green tire transport device.
FIG. 22 shows the structure of FIG. 22. In the present invention, the description will be made on the assumption that the moving mechanism in the X and Y directions is provided above the apparatus.

On one side of the lower end of the main frame 31 of the second first-stage green tire W transfer device 22, there is a fixed frame 32, one end of which is provided so as to surround the outer periphery of the tire. A shoe unit 51a, which is referred to as a gripping means for gripping the first-stage green tire W, is attached. The fixed frame 32 has a third
As shown in the figure, a boss 33 is fixed, and a shaft 34 is rotatably assembled to the boss 33.

Bosses 35a and 35b are assembled to both ends of the shaft 34, and arms 36a and 36b project from the bosses 35a and 35b.

A bracket 39 is mounted at an appropriate position above the main frame 31, and a base end of a cylinder 40, which is referred to as a driving means, is swingably mounted on the bracket 39. A metal fitting 42 is attached to the tip of the output rod 41 of the cylinder 40. The metal fitting 42 is swingably connected to the arm 36a.

Further, shoe units 51b, 51c, which are referred to as gripping means for gripping the first-stage green tire W, are attached to appropriate intermediate positions and ends of the arms 36a, 36b. , 51c, the arms 36a, 36b can be pivoted about a shaft 34 by a cylinder 40.

Also, at the lower end of the fixed frame 32 on the arm 36a, 36b side,
The frame 37 is fixed and comes into contact with a stopper bolt 38 provided at an appropriate position of the arms 36a and 36b. When the arms 36a and 36b are lowered, the frame 37 is in the correct position, that is, three sets of shoe units. 51a, 51B, 51C is the axis 52
And the axis 52 is parallel to the center of the main shaft of the winding stitcher 5.

FIG. 4 shows a partial assembly view of the shoe unit 51a. The basic structure of the shoe units 51b and 51c is the same, and the description is omitted.

That is, bosses 44 are provided at both ends of the base plate 43,
A slide metal (not shown) is assembled to 44, and a guide shaft 45 is slidably inserted into the boss 44.

One end of the guide shaft 45 is fixed to a boss 47 of a shoe plate 46 for holding the first-stage green tire W.

At the center of the base plate 43, a cylinder 48 referred to as a driving means is fixed, and its output rod 48a is connected to the shoe plate 46.

Thus, the shoe plate 46 can be moved by the cylinder 48 in parallel to the axis 52 by a predetermined stroke.

As shown in the side views of the shoe unit 51a in FIGS. 2 and 5, the shoe plate 46 has a shape having an appropriate radius R so as to grip the first-stage green tire W without deformation.

A boss having a screw portion provided on the fixed frame 32
A screw shaft 50, which is rotatable with the base plate 43 but cannot move in the axial direction, is meshed with 49, and an outer end of the base plate 43 of the screw shaft 50 has a chance proket. 53 are assembled and connected by a chain 54. Thus, when one of the screw shafts 50 is rotated by a rotation driving device (not shown), the other screw shaft 50 is also rotated, so that the base plate 43 moves parallel to the shaft center 52.

As described above, when the diameter of the first-stage green tire W changes, the shoe plate 46 moves only a fixed stroke by adjusting the position of the base plate 43, so that the first-stage green tire W can be appropriately deformed without being deformed. It is possible to hold and transport, without moving the base plate 43, it is very compact compared to the case where the stroke of the cylinder 48 is lengthened so that the first stage green tire W can be gripped from the maximum diameter to the minimum diameter. In addition, there is no need for a stopper device or the like, and the operation time is short and the structure is reasonable.

Next, the molding operation of the tire molding apparatus according to the present invention will be sequentially described.

First, when the first-stage green tire W is formed on the first-stage molding drum 2 of the first-stage molding machine main body 1, the tail stock 3 is used to enable the first-stage green tire W to be taken out from the first-stage molding drum 2. Retreats and moves in the axial direction of the molding machine.

Then, the first first-stage green tire transporting device 21 moves to → in FIG. 1, grips the first-stage green tire W, removes it from the forming drum 2 and moves to →, and then moves to the first stage. Molding device 5 for green tire W at position A
And immediately ready to pick up the next first stage green tire W.

The molding device 5 receiving the first-stage green tire W
While performing the molding operation, move from the A position to the B position.
The first-stage green tire W to the second-stage green tire transfer device 22
give.

When the second first-stage green tire transport device 22 receives an insertion command from the second-stage molding machine 6 side, as shown in FIG.
a → b, the first-stage green tire W is transferred to the second-stage forming drum 7, and the arms 36a and 36b including the shoe units 51b and 51c are moved to the first stage by the cylinder 40 as shown in FIG.
The vehicle turns and rises to a position where it does not contact the step green tire W, and then moves in the direction c.

Thus, the second first-stage green tire transport device
22 can return to the predetermined standby position within a short distance c in a short time without returning to b → a, and receives the molded product of the belt and the cap tread from the belt drum 10 and conveys it to the second-stage molding machine 6. The conveying device 11 can be brought close to the side of the forming drum 7 so that the forming time can be greatly reduced.

In the case where the conventional first-stage green tire conveying device is one set with respect to the tire forming device of the present invention, the following first-stage green tire W must be transferred to the second-stage forming drum 7 unless the first-stage green tire W is transferred. Since the first-stage green tire W cannot be received, when the second-stage molding machine main body 6 side stops due to various factors such as material change of the servicers 12 to 14, the first-stage molding machine main body 1 also stops. Also, as for the molding operation time, the transport operation of the first-stage green tire transport device 21 and the molding operation of the winding stitcher device 5 form a series of series, which takes a long time. 2
In some cases, it takes longer than the molding operation time of the step molding machine body 6. With respect to these problems, in the case of the tire molding apparatus of the present invention, the first-stage molding machine main body 1 can continue the molding operation even if the second-stage molding machine main body 6 stops due to various factors. Thus, the stock of the first stage green tire W can be held.

Also, regarding the forming operation time, the transfer operation of the two first-stage green tire transfer devices 21 and 22 and the forming operation of the winding stitcher device 5 do not form a series, but the forming operation of the winding stitcher device 5 is performed. Since the operation is performed in parallel with the molding operation time of the first-stage molding machine main body 1 and the second-stage molding machine main body 6, the cycle is shortened, and each first-stage green tire transport device is moved in the X-Y direction. Since the way of movement is a short distance and simple operation, the moving device in the XY directions can be controlled by a simple device and control.

〔The invention's effect〕

The present invention conveys the first-stage green tire molded by the winding stitcher device to the second-stage molding machine body side between the winding stitcher device and the second-stage molding machine body as described above. A second green tire transport device to be transferred and mounted is movably installed. The second green tire transport device has a fixed frame surrounding the outer peripheral surface of the green tire at the tip of the main frame, A pivotable arm is attached so as to surround the outer peripheral surface of the green tire via driving means, and a tip end of the fixed frame and, at several places of the arm, a green tire capable of moving back and forth toward the axis of the green tire. Since the gripping means is provided, the first-stage green tire can be transported appropriately and reliably without deformation, and can be gripped according to the size of the tire. It is versatile because it can be used, and it can be made inexpensively because it can be made compact with a simple structure. In addition, the first-stage green tire molded by the winding stitcher device can be attached to the second-stage molding machine body. Since it can be transported reliably and quickly and efficiently, there is an effect that the productivity of the tire can be improved.

[Brief description of the drawings]

FIG. 1 is a schematic plan view of a tire forming apparatus embodying the present invention, FIG. 2 is an enlarged front view of a second green tire transporting apparatus, FIG. 3 is a left side view of FIG. 2, and FIG. FIG. 5 is a partial assembly view of the shoe unit, FIG. 5 is a side view of the shoe unit,
FIG. 6 is an operation explanatory view of the second green tire transport device. DESCRIPTION OF SYMBOLS 1 ... 1st molding machine main body, 5 ... Wound stitcher apparatus, 6 ... 2nd molding machine main body, 22 ... 2nd green tire conveyance apparatus, 31 ... Main frame, 32 ... Fixed frame , 40,48…
... Cylinder (drive means), 51a, 51b, 51c ... Shoe unit (gripping means) W ... Green tire.

Claims (1)

(57) [Claims] 1. A tire forming apparatus comprising a first stage molding machine main body and a second stage molding machine main body having a winding stitcher device, wherein the winding stitcher device and the second stage molding machine are provided. A second green tire transfer device for transferring and transferring the first-stage green tire formed by the winding stitcher device to the second-stage molding machine main body side between the main body and the main body is movably installed. The second green tire transport device includes a fixed frame surrounding the outer peripheral surface of the green tire at the tip of the main frame, and an arm which can pivot with respect to the fixed frame via a driving unit so as to surround the outer peripheral surface of the green tire. And a gripping means for a green tire capable of moving back and forth toward the axis of the green tire is provided at a tip portion of the fixed frame and at several places of the arm. Green Tire Conveyor in Forming Equipment