JP2001105507A - Tire constituting rubber member laminating apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tire constituting member laminating apparatus simplified in structure and enhanced in productivity to a large extent. SOLUTION: A conveyor 1 having a belt tensioning member 2 and the endless belt 3 provided to the belt tensioning member 2 and carrying a rubber member G is provided. A conveyor moving means 4 for allowing the conveyor 1 to advance to the position under a tire molding drum D and raising the same to bring the front end 37 of the rubber member G on the belt 3 into contact with the drum D under pressure is provided and the drum D having the rubber member G brought into contact therewith under pressure is rotated to transfer and laminate the rubber member G to the drum D from the belt 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sticking apparatus for sticking a belt-shaped rubber member constituting a tire to a drum for forming a tire.

[0002]

2. Description of the Related Art As shown in FIG. 9, a conventional laminating apparatus for laminating a belt-shaped rubber member a to a tire forming drum b is a roll-out rubber member a (not shown). And a servicer c for transferring the fed rubber member a; and an intermediate drum (transfer drum) d disposed between the servicer c and the drum b. The rubber member a is pasted and cut by a cutter (not shown). Then, the intermediate drum d on which the rubber member a is pasted approaches the drum b, and the intermediate drum d also rotates in synchronization with the rotation speed of the drum b. As a result, the rubber member a is transferred and attached from the intermediate drum d to the drum b.

[0003]

As described above, the rubber member a is pasted to the intermediate drum d by the servicer c before the rubber member a is pasted to the drum b, and then cut off. Since the three steps of transferring and affixing the rubber member a to b are required, the attaching step 1
The cycle time was long and there was a problem with productivity. Also, in this method, the rubber member a and the profiled drum b are grounded (compressed) to the rubber member a and the drum with the profile.
The area is small, meandering, peeling, etc. occur, making it difficult to transfer and paste. Also, since control is also required on the intermediate drum d side, the wiring and piping are complicated, and the normal rotation /
There is a problem that a trouble is liable to occur due to deterioration due to the reversal operation of the reverse rotation and a maintenance load is large.

[0004] By the way, a method of pre-cutting and sticking to the intermediate drum d from the servicer c is also conceivable, but there is a problem that the rubber member a with a profile meanders on the servicer c due to extrusion characteristics and material characteristics.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an apparatus for attaching a rubber component for a tire, the structure of which is simplified and the productivity is greatly improved.

[0006]

According to the present invention, there is provided an apparatus for applying a rubber member for a tire according to the present invention, which is an apparatus for attaching a belt-shaped rubber member to a tire forming drum. A belt stretcher and a conveyor having an endless belt stretched on the belt stretcher and on which a rubber member is placed; and a conveyor which is advanced and raised to a position below the drum to form a rubber member on the belt. Conveyor moving means for pressing the front end side against the drum,
By rotating the drum pressed against the rubber member, the rubber member is transferred and attached from the belt to the drum.

Further, there is provided a sticking apparatus for sticking a belt-shaped rubber member on a tire forming drum, wherein the feeding means intermittently feeds a roll-shaped rubber member, and a belt tension member having a plurality of rollers. A conveyor having an endless belt stretched on the belt stretched body and on which a rubber member fed from the feeding means is placed, and a cutter portion provided between the conveyor and the feeding means and fed out. Cutting means for cutting the rubber member to a predetermined length dimension, conveyor moving means for advancing the conveyor to a position below the drum and raising the front end side of the rubber member on the belt against the drum, The rubber member is transferred and adhered from the belt to the drum by rotating the drum pressed against the rubber member.

Further, the conveyor has a bending portion which can swing up and down at the front end of the belt stretched body, and has a swing means for swinging the bending portion. It swings and presses the front end of the rubber member on the belt against the drum.

[0009] The surface of the belt of the conveyor is processed with low adhesion. Further, a heating means for heating a portion of the rubber member to be cut is provided. Further, a driven gear for transmitting the rotational force to the roller on the side of the feeding means of the conveyor is provided on the conveyor side, and the driven gear meshes with the driven gear.
An engagement / disengagement switching mechanism having a detachable drive gear is provided on the feeding means side.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings showing embodiments.

As shown in the plan view of FIG. 1, the side view of FIG. 2, the simplified structural explanatory view of FIG. 3, and FIG. 6, the rubber member sticking apparatus E of the present invention has a drum installed at a front position thereof. A belt-shaped rubber member G is transferred and adhered to a tire or a former (hereinafter, these are collectively referred to as a tire forming drum D), and a feeding means for intermittently feeding a roll-shaped rubber member G. 5, a conveyor 1 having a belt stretcher 2 and an endless belt 3 stretched on the belt stretcher 2, and a conveyor moving means 4 for moving the conveyor 1
And a cutting unit 7 having a cutter unit 6 disposed between the conveyor 1 and the feeding unit 5. FIG.
In this embodiment, as shown in FIG.
An example is shown in which the units are arranged side by side.

More specifically, as shown in FIGS. 1 to 3, the feeding means 5 has a pair of front and rear rollers 8, 8 rotatably receiving a roll-shaped rubber member G provided on the rear end side. A base 9, a support frame 10 erected near the front-rear middle of the base 9, a feed roller 11 having a plurality of rollers provided on the upper rear wall side of the support frame 10, A support base 12 provided on the front side of the support frame 10 of the base 9;
A belt conveyor section 13 provided above the support base section 12,
It has. Reference numeral 14 denotes the support base 12 and the support frame.
It is a centering means provided between 10.

The conveyor moving means 4 is provided on the front side of the feeding means 5, and has a base portion 15 and a moving frame portion which runs along rails 16, 16 attached to the base portion 15 in the front-rear direction. 17, a first cylinder 18 for reciprocating the moving frame unit 17 back and forth, and a second cylinder 19 for supporting the conveyor 1 so as to be able to swing up and down, and configured to move the conveyor 1 forward and upward. ing.

As shown in FIGS. 1 to 4, in the conveyor 1, the endless belt 3 has a surface (the outer peripheral side in contact with the rubber member G) which is processed with low adhesion.
Further, the belt tension body 2 includes a main body 20 having a pair of left and right band plate members whose rear ends are pivotally connected to a moving frame 17 of the conveyor moving means 4 via a pivot shaft 21. A bending portion 23 having a pair of left and right band plate members pivotally connected to the front end of the main body portion 20 via a pivot shaft 22; and a rocking means 25 for rocking the bending portion 23. The lower surface side of the main body 20 is supported by the second cylinder 19 so that the belt tension body 2 has a substantially inverted shape when viewed from the side. Note that, specifically, the swinging means 25 is a cylinder whose base end is pivotally attached to the moving frame section 17 and whose distal end is pivotally attached to the lower surface side of the main body section 20.

Further, the belt tension member 2 is provided with a plurality of rollers 24... Rotatably on the main body portion 20 and the bending portion 23. At this time, the endless belt 3 is suspended in a substantially right-angled triangular shape (or a shape with the harp laid down) in a side view.
Or, the endless belt 3 is lifted up from the upper surface side of the belt tension body 2 and stretched like a bowstring so that each roller 24.
Are disposed on the main body 20 and the bending portion 23. The moving frame unit 17 is provided with a belt tension cylinder 26, and the tension of the belt 3 is adjusted via a roller 24 from the lower surface side of the main body unit 20.

The moving frame 17 of the conveyor moving means 4 is provided with a cutting means 7 for cutting the rubber member G to a predetermined length.
Measuring section 29 for measuring the length of
And a cutter unit 6 disposed between the feeding unit 5 and the belt conveyor unit 13. Specifically, the cutter unit 6
Is provided at the rear end of the moving frame section 17 and has an endless belt 3
Has a blade portion 6a protruding from obliquely below and capable of reciprocating left and right. The cutter unit 6 is configured to heat the blade unit 6a to a predetermined temperature. A receiving plate 38 is provided on the front end side of the belt conveyor portion 13 of the feeding means 5 along the left-right movement direction of the blade portion 6a. The measuring section 29 is provided at the front end of the moving frame section 17 and has a rotating body 29a that rotates in contact with the rubber member G transported by the endless belt 3.

The moving frame portion 17 of the conveyor moving means 4 has a portion to be cut of the rubber member G divided by the cutting means 7.
To be cut by the cutter section 6 or its vicinity.
A heating means 28 for heating the heat is provided. Specifically, the heating means 28 holds a spot heater section 30 disposed at a position above the blade section 6a of the cutter section 6 for blowing out hot air, and holds the spot heater section 30 so as to be movable in the vertical and horizontal directions. And a heater moving mechanism 31.

Incidentally, the conveyor 1 can be linked with the belt conveyor section 13 of the feeding means 5. That is, the driven gear 32 for transmitting the rotational force to the roller 24 (24a) on the feeding means 5 side (front end side) of the conveyor 1 is provided on the conveyor 1 side, and the driving gear 33 is capable of meshing with and disengaging from the driven gear 32. An engagement / disengagement switching mechanism 34 is provided on the feeding means 5 side.

More specifically, the driven gear 32 includes:
For example, the roller 24 (24a) on the feeding means 5 side of the conveyor 1
Is fixed to the shaft end. On the other hand, the engagement / disengagement switching mechanism 34 includes:
For example, a U-shaped swinging piece 35 that holds the drive gear 33 rotatably and swingably is disposed on the front end side of the belt conveyor unit 13 and a cylinder 36 that swings the swinging piece 35. Is provided, and the swinging piece 35 is swung by the cylinder 36 to drive the drive gear.
The drive gear 33 is configured to switch between a meshing state and a disengagement state with the driven gear 32 and to rotate in conjunction with the rotation of the rollers of the belt conveyor unit 13.

The sticking device E is constructed as described above. However, when two sticking devices E and E are arranged side by side (as shown in FIG. 1), for example, the first cylinder of the conveyor moving means 4 is used.
Components such as 18 and the moving frame unit 17 are shared.

Next, the operation and operation of the sticking device E will be described. FIG. 3 shows a standby state of the sticking device E. At this time, the starting end (front end 37) of the roll-shaped rubber member G is sent to the front end side of the belt conveyor section 13 through the roller section 11 of the feeding means 5. I have. Further, the driving gear 33 on the feeding means 5 side
Are engaged with the driven gear 32 on the conveyor 1 side.

By driving the feed roller unit 11 and the belt conveyor unit 13 of the feeding means 5 from this standby state, the driven gear 32 rotates together with the driving gear 33, and the driven gear 32
, The endless belt 3 rotates interlockingly with the rollers 24a of the conveyor 1 so that the starting end (front end 37) of the rubber member G fed out by the belt conveyor section 13 rides on the endless belt 3 and moves forward. Transferred to At this time, since the surface of the endless belt 3 which is in contact with the lower surface of the rubber member G is processed with low adhesion, it does not meander from the feeding means 5 to the endless belt 3 and the centering means 14 The rubber member G is guided and sent to the position.

Then, as shown in FIGS. 4 and 5, the rotating body 29a of the measuring portion 29 of the cutting means 7 rides on the rubber member G which moves forward on the endless belt 3, and rotates. The length of the rubber member G to be cut is measured, and when the rubber member G moves a predetermined distance from the rotating body 29a (or when the rotating body 29a rotates a predetermined number of times), the roller of the feeding means 5 is rotated. The unit 11 and the belt conveyor unit 13 stop.

The spot heater 30 of the heating means 28
Moves in the left-right direction while blowing out warm air, and heats the cut portion of the rubber member G. That is, in the rubber member G,
The receiving plate 38 provided near the cutter unit 6 of the cutting means 7
Is heated by the spot heater unit 30. As a result, the temperature of the portion to be cut of the rubber member G rises and the adhesiveness increases, so that the portion to be cut temporarily adheres to the receiving plate 38.

Thereafter, the blade 6a of the cutter 6 of the cutting means 7 moves in the left-right direction, and cuts the cut portion of the rubber member G. At this time, since the portion to be cut is temporarily adhered and fixed to the receiving plate 38, the rubber member G is not moved by the moving blade portion 6a, and the cutting can be performed smoothly and straightly.

Thereafter, the cylinder 36 of the engagement / disengagement switching mechanism 34
Is extended and the swinging piece 35 swings downward, whereby the drive gear 33 is separated from the driven gear 32, and the conveyor 1 is in a free state. Then, as shown in FIG. 6, the first cylinder 18 of the conveyor moving means 4 is driven to extend and the moving frame portion 17 is driven.
Advance, the front end of the conveyor 1 (the bending portion 23
7) advances to a position below the tire forming drum D, and as shown in FIG. 7, the second cylinder 19 extends (as indicated by arrow A), whereby the front end of the conveyor 1 swings and rises,
The front end 37 side of the fixed-size cut rubber member G on the endless belt 3 is pressed against the lower outer peripheral surface of the tire forming drum D. At this time, the rubber member G is pressed against the tire forming drum D along an arc shape by the bending of the endless belt 3. Further, at this time, the bending portion 23 of the belt tension body 2 is in a state of being separated from the tire building drum D (as indicated by a virtual line).

Thereafter, when the cylinder serving as the rocking means 25 is shortened (as indicated by arrow B), the bending portion 23 rocks toward the tire forming drum D, thereby being attached to the front end of the bending portion 23. The front end 37 of the rubber member G is pressed against the tire forming drum D via the roller 24 and the endless belt 3. At this time, the rubber member G is held by the endless belt 3 that has been subjected to the low-adhesion processing and is pressed against the tire forming drum D with a uniform force without moving.

Then, as shown in FIG. 8, the rubber member G is pressed from the endless belt 3 to the tire forming drum 3 by rotating the tire forming drum D pressed against the rubber member G in the attaching direction (the direction of arrow C). D is transferred and pasted. At this time, since the endless belt 3 is in a free state and the rubber member G has low adhesion to the surface of the endless belt 3, the endless belt 3 rotates with the rotation of the drum D for tire building. The rubber member G is peeled off from the endless belt 3 due to the difference between the degree of adhesion between the rubber member G and the tire forming drum D and the degree of adhesion between the rubber member G and the endless belt 3. It is accurately transferred and affixed to the forming drum D.

Thereafter, the conveyor 1 is retreated by the conveyor moving means 4 to the feeding means 5 side, and the meshing / separating switching mechanism is provided.
34 is activated, the drive gear 33 meshes with the driven gear 32, a rubber member G having a predetermined length is sent from the feeding means 5 to the conveyor 1, and the rubber member G is cut to a fixed size by the cutting means. The above operation is repeated, and the rubber member G is continuously transferred and affixed to the tire building drum D.

According to the sticking apparatus E of the present invention, it is possible to transfer with high accuracy even a large profile {it is difficult to fit the entire surface mechanically} even with the rubber rubber member G or the tire forming drum D with a profile. Can be pasted. Note that the profile means that the thickness of the cross section of the member in the vertical direction is not uniform but changes in a curved shape.

The present invention is not limited to the above-described embodiment. For example, the shape of the conveyor 1 can be any shape such as a half-moon shape or a bow shape in a side view. An endless belt 3 may be stretched on the belt stretcher 2 so that it can follow the lower outer peripheral surface of D.

[0032]

Since the present invention is configured as described above, the following effects can be obtained.

According to the first or second aspect of the present invention, it is possible to omit the step of pasting the rubber member on the intermediate drum once as in the prior art, so that the cycle time of the transfer pasting step can be shortened and the productivity of the tire can be reduced. Significantly improved. Further, even in the case of a rubber rubber member G having a large profile or a tire forming drum D having a profile, the rubber member G can be transferred and adhered from the conveyor 1 to the tire forming drum D with high accuracy. At this time, if the tire building drum D rotates, the endless belt 3 of the conveyor 1 can rotate along with the rubber member G, so that a driving unit and a tuning mechanism are not required on the conveyor 1 side, and the structure is reduced. It can be simplified and manufactured at low cost, and the maintenance load is greatly reduced.

According to the second aspect, the process of feeding the roll-shaped rubber member G from the feeding means 5 to the conveyor 1 and cutting it into a predetermined length is automated.
According to the third aspect of the present invention, the initial end (front end 37) of the easily peelable rubber member G is pressed against the tire forming drum D by the conveyor 1 before the transfer and bonding. If the drum D is rotated, the rubber member G can be reliably and smoothly transferred and pasted by sequentially winding the rubber member G from the beginning of the pasting end.

When the roll-shaped rubber member G is fed out and fed to the conveyor 1, the rubber member G can be put on the endless belt 3 without meandering. (According to claim 5) The cutting means of the rubber member G is heated by the heating means.
By heating at 28, the adhesiveness between the member (e.g., a metal plate) that receives the portion to be cut and the rubber member G increases, so that the rubber member G does not move during cutting by the cutter unit 6 of the cutting means 7 and is smooth and straight. Can be cut into

According to the sixth aspect, a driving unit for rotating the endless belt 3 when the rubber member G fed from the feeding means 5 is received by the conveyor 1 is unnecessary. That is, a structure in which the drive source for rotating the endless belt 3 is completely eliminated from the conveyor 1 can be provided.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of the present invention.

FIG. 2 is a side view.

FIG. 3 is an explanatory diagram of a simplified configuration.

FIG. 4 is an explanatory diagram showing a configuration and a positional relationship of a cutting unit and a heating unit.

FIG. 5 is an explanatory view showing a state where a rubber member is cut to a fixed size.

FIG. 6 is an explanatory diagram showing a state where the conveyor has advanced.

FIG. 7 is an operation explanatory view showing a state where the conveyor is raised and the rubber member is pressed against the tire building drum.

FIG. 8 is an operation explanatory view showing a transfer and pasting state.

FIG. 9 is a simplified explanatory diagram showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Conveyor 2 Belt stretched body 3 Endless belt 4 Conveyor moving means 5 Feeding device 6 Cutter part 7 Cutting means 23 Refraction part 24 Roller 25 Swing means 28 Heating means 32 Follower gear 33 Drive gear 34 Mesh separation switching mechanism 37 Front end D Tire building drum G Tire component rubber member

Claims (6)

[Claims] 1. An attaching device for attaching a belt-shaped rubber member G to a tire forming drum D, wherein the rubber member G is mounted on the belt tension member 2 and the belt tension member 2. A conveyor 1 having an endless belt 3; and a conveyor moving means 4 for moving the conveyor 1 to a position below the drum D and raising the same to press the front end 37 of the rubber member G on the belt 3 against the drum D. And a rubber member G is attached to the drum D by transferring the rubber member G from the belt 3 by rotating a drum D pressed against the rubber member G. 2. A sticking device for sticking a belt-shaped rubber member G on a tire forming drum D, comprising: a feeding means 5 for intermittently feeding a roll-shaped rubber member G; A conveyor 1 having a belt stretched body 2 having an endless belt 3 mounted on the belt stretched body 2 and carrying the rubber member G fed out from the feed-out means 5; and the conveyor 1 and the feed-out means 5 Cutting means 7 having a cutter portion 6 disposed therebetween and cutting the fed rubber member G to a predetermined length, and moving the conveyor 1 to a position below the drum D and raising it. Belt 3
And a conveyor moving means 4 for pressing the front end 37 side of the upper rubber member G against the drum D, and transferring the rubber member G from the belt 3 to the drum D by rotating the drum D pressed against the rubber member G. An apparatus for attaching a rubber member for a tire, wherein the apparatus is configured as described above. 3. The conveyor 1 has a bending portion 23 which can swing up and down at the front end of the belt tension member 2 and swing means 25 for swinging the bending portion 23. 3. The apparatus according to claim 1, wherein the bending portion is swung at 25 to press the front end 37 of the rubber member G on the belt 3 against the drum D. 4. The tire member bonding apparatus according to claim 1, wherein the surface of the belt 3 of the conveyor 1 is processed with low adhesion. 5. The apparatus according to claim 2, further comprising heating means for heating a portion of the rubber member G to be cut. 6. A driven gear 32 for transmitting a rotational force to the roller 24 on the feeding means 5 side of the conveyor 1 is provided on the conveyor 1 side, and a meshing / separating having a driving gear 33 meshable / separable with the driven gear 32. 6. The apparatus according to claim 2, wherein the switching mechanism is provided on the feeding means.