JP2000326419A - Apparatus for sticking tire-constituting belt-like rubber member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus for sticking a tire-constituting belt-like rubber member which surely sticks the tire-constituting belt-like rubber member. SOLUTION: An apparatus which spirally winds a tire-constituting belt-like rubber member 1 in which cords are embedded on a drum 2 is constituted in such a way that it is provided with a press roller 15 and delivery rollers 16 and 16 and the press roller 15 is brought into press-contact with the drum 2 under a condition where the belt-like rubber member 1 is pinched by making the press roller 15 cooperate with the delivery rollers 16 and 16 and the starting end for winding the belt-like rubber member 1 is stuck on the drum 2 by rotating the drum 2 and in addition, the press roller 15 has a built-in cutting blade for cutting the wound back end of the belt-like rubber member 1 after winding is finished.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for attaching a belt-shaped rubber member having a cord embedded therein in a spiral manner around a drum.

[0002]

2. Description of the Related Art As shown in FIG. 10A, a conventional sticking device includes a pressing portion j having a pressing roller a, tip rollers b and b, a cutting blade e, and a belt-shaped rubber member d constituting a tire. 10 and a delivery section c for sandwiching and sending out.
As shown in (b), the cylinder f of the feeding section c extends, the band-shaped rubber member d is pressed down in the direction of arrow l, and the cue cylinder g attached to the rear of the feeding section c extends in the direction of arrow m. , The delivery section c is a tip roller b,
b, and the tip of the belt-shaped rubber member d
It is guided between c and c.

Then, as shown in FIG. 11A, the cylinder f of the feeding section c contracts in the direction of the arrow n to release the belt-shaped rubber member d, and the belt-shaped rubber member d is caught on the belt drum h. As shown in (b), the cylinder i attached to the rear part of the holding part j extends in the direction of the arrow p, and the holding part j swings around the axis k in the direction of the arrow q. The attached pressing roller (a) cooperates with the belt drum (h) to hold down the belt-like rubber member (d), and affix the belt-shaped rubber member (d) to the belt drum (h). Then, the cueing cylinder g contracts in the direction of the arrow r, and the feeding portion c returns to its original position, and the belt drum h rotates in the direction of the arrow s, and the belt-like rubber member d to the belt drum h
Is performed.

[0004] Then, as shown in FIG. 12, after the application is completed, the cylinder f of the feeding portion c is extended, and the band-shaped rubber member d is pressed down in the direction of the arrow l. The belt-like rubber member d is moved in a direction perpendicular to the paper surface and cut.

[0005]

However, at the time of cueing in FIG. 10, the leading end of the belt-shaped rubber member d has the leading end rollers b,
b There is a risk of clogging before or between b. In addition, although the cue is performed, the belt-shaped rubber member d may not be pressed by the belt drum h by the pressing roller a at the time of pressing in FIG. Further, at the time of cutting shown in FIG. 12, the band-shaped rubber member d is cut while being pressed by the pressing roller a. However, there is a possibility that cutting cannot be performed and a cutting failure may occur.

Accordingly, an object of the present invention is to solve the above-mentioned conventional problems and to provide a tire-constituting band-shaped rubber member attaching apparatus configured to securely adhere a tire-constituting band-shaped rubber member.

[0007]

In order to achieve the above-mentioned object, a tire-constituting belt-shaped rubber member attaching apparatus according to the present invention is a device for spirally winding a tire-constituting belt-shaped rubber member having a cord embedded therein on a drum. A press roller and a feed roller, wherein the press roller cooperates with the feed roller and sandwiches the band-shaped rubber member, is pressed against a drum, and rotates the drum to form the band. The winding start end of the rubber member is configured to be affixed to the drum, and the pressing roller has a built-in cutting blade for cutting the winding rear end of the belt-shaped rubber member after the winding is completed.

Further, the feed roller is configured so as to be able to contact or separate from the press roller.

Further, a cutting mechanism is provided at or near the pressing roller, and the cutting mechanism senses the band-shaped rubber member and protrudes a tip of a built-in cutting blade from the pressing roller to thereby rotate the shaft of the pressing roller. The belt-shaped rubber member is cut by running in the center direction.

[0010]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 shows an embodiment of a tire-constituting band-shaped rubber member sticking apparatus in which a cord-embedded band-constituting rubber member 1 (jointless band) is wound around a drum 2. A sticking section 5 is provided at the front of the sticking device, and the sticking section 5 includes a tread sticking section 6 provided at an upper portion and a band-shaped rubber member sticking section 7 provided at a lower portion. The rubber member attaching section 7 has an attaching head 3 for winding the belt-shaped rubber member 1 on the drum 2 (in this embodiment, two attaching heads 3 and 3 are provided above and below). In the present invention, the drum 2 is viewed from the sticking device.
The side is defined as forward.

[0012] Then, the attaching section 5 is provided for the attaching apparatus.
The cylinder 8 is configured to be able to move back and forth in the direction of the arrow, and the tread affixing section 6 is configured to be able to move back and forth in the direction of the arrow (with another cylinder not shown).

In operation, the cylinder 8 extends, the sticking section 5 moves forward, and the sticking head 3 comes into contact with the drum 2 to rotate the belt-shaped rubber member 1 around the axis D.
Attach it while wrapping it around, and then tread attaching part 6
Moves forward (with another cylinder not shown) to attach the tread 4 on the drum 2.

FIG. 2 shows a side view of the sticking head 3. The sticking head 3 is configured to be able to move the shaft 9 from the near side of the drawing to the back (relative to the band-like rubber member sticking portion 7 shown in FIG. 1). Have been. Therefore, the range where the belt-shaped rubber member 1 is attached to the drum 2 is expanded.

The attaching head 3 includes a fixed portion 12 movably attached to the shaft 9 and an operation swing portion 13 attached to the fixed portion 12. More specifically, the lower part of the operation swinging part 13 is attached to the fixed part 12 via the cylinder 14, and the upper part is attached to the fixed part 12 so as to be able to swing around the axis A. Thus, when the cylinder 14 contracts in the direction of the arrow, the operation swing portion 13
Swings around the axis A downward (in the direction of the drum 2) in the direction of the arrow. Conversely, when the cylinder 14 is extended, the operation swing portion 13 swings upward around the axis A.

The operation swing unit 13 includes a holding unit 10 and a feed unit 11. Presser section 10 has a presser roller at the front
15 is rotatably mounted around the axis B.
Has feed rollers 16, 16 rotatably mounted on its front. More specifically, the feed unit 11 is provided with a cylinder 17, and when the cylinder 17 extends in the direction of the arrow, the feed rollers 16, 16 abut against the holding roller 15, and conversely, when the cylinder 17 contracts, the feed roller The configuration is such that 16 and 16 are separated from the press roller 15. Therefore, the belt-shaped rubber member 1 sandwiched between the feed rollers 16, 16 is
I can definitely lead to 15. A plurality of guide rollers 18 are provided in the operation swinging portion 13 to further reliably guide the belt-shaped rubber member 1.

The holding roller 15 includes (commercially available)
A cutting blade 19 such as a cutter blade is built in, and is configured to cut the band-shaped rubber member 1. More specifically, as shown in the cross-sectional view of FIG. 3, an outer frame 20 having a rectangular cross section is fixedly mounted inside a pressing roller 15 having a circular cross section, and an inner frame 21 is further mounted inside the outer frame 20. And a cutting blade 19 is interposed in the inner frame 21, and a pin 22 (comprising a bolt and a nut or the like) is provided so as to penetrate the cutting blade 19, the inner frame 21 and the outer frame 20. Thus, the cutting blade 19, the inner frame 21 and the outer frame 20
Can rotate about the axis B integrally with the press roller 15.

As shown in the plan view of the operation swinging portion 13 in FIG. 4, a cutting mechanism 23 is provided on the pressing roller 15 or in the vicinity thereof. Specifically, the press roller 15
An arm 24 and a cylinder 25
Are arranged sequentially in the rearward direction. The arm 24 is rotatably mounted about a vertical axis C at an intermediate portion thereof.
One end of 24 is connected to the cylinder 25, and the other end of the arm 24 is in contact with the end of the push rod 26. The pushing shaft bar 26 is connected to the inner frame 21 (shown in FIG. 3), and is disposed in the direction of the rotation axis B of the pressing roller 15. Then, cylinder 25
When the arm extends in the direction of the arrow, the arm 24 swings in the direction of the arrow, and the pushing shaft 26 moves in the direction of the arrow toward the press roller 15 along the axis B.

Then, as shown in the operation explanatory diagram of FIG.
When the pushing shaft 26 moves in the direction of the press roller 15 along the axis B, the inner frame 21 connected to the pushing shaft 26 moves inside the outer frame 20 so as to be pushed out from the inside of the press roller 15. .

The movement of the cutting blade 19 at this time will be described in detail (because the cutting blade 19, the inner frame 21 and the outer frame 20 can rotate around the axis B integrally with the pressing roller 15, FIG. 5 will be described in detail), and as shown in FIG. 3 and FIG.
Since the hole 27 provided in the inner frame 21 can be moved up and down, the cutting blade 19 can be moved up and down with respect to the inner frame 21. In addition, since the pin 22 can move up and down the hole 28 provided in the outer frame 20 in the direction of the axis B, the cutting blade 19
20 can be moved up and down with respect to the axis B direction.

Then, from the state shown in FIG.
Is pushed in the direction of the arrow, the inner frame 21, the cutting blade 19 and the pin 22 move in the direction of the arrow, and the pin 22 slides into the hole 28 of the outer frame 20 in the direction of the arrow as shown in FIG. As shown in FIG. 5C, the cutting blade 19 moves with respect to the inner frame 21.
And the pin 22 has moved downward. That is, FIG.
In the state shown in (b) to FIG. 5 (c), the cutting blade 19 is in a cuttable state in which the tip of the cutting blade 19 projects from the press roller 15.

As shown in FIGS. 4 and 5, the cutting blade 19 is determined by the positional relationship between the pressing roller 15 and the band-shaped rubber member 1.
Cuts the width direction of the belt-shaped rubber member 1. Note that the cuttable width of the cutting blade 19 is larger than the width of the band-shaped rubber member 1, and the protrusion of the cutting blade 19 from the pressing roller 15 is larger than the thickness of the band-shaped rubber member 1.

Conversely, as shown in FIG. 5A, the leading end of the cutting blade 19 is set in the holding state by the pressing roller 15 in the protruding state shown in FIG. The cylinder 25 (see FIG. 4) is contracted to move the end of the arm 24 away from the end of the push rod 26. Then, the push rod 26 is moved by receiving a force in a direction away from the press roller 15 by the spring 29 in a resiliently biased state in which the push rod 26 is fitted outside.
After the intermediate state (b), the state shown in FIG.

Since the press roller 15 is rotatable,
It is attached to the operation swing part 13 via a bearing. Further, the inner frame 21 is also attached to the extrusion shaft 26 so as to be rotatable. Thus, the pressing roller 15, the cutting blade 19, the inner frame 21, and the outer frame 20 can be independently rotated integrally.

Next, the operation of the attaching head 3 for attaching the belt-shaped rubber member 1 onto the drum 2 will be described. As shown in FIG. 6, with the belt-shaped rubber member 1 sandwiched between the feed rollers 16, 16, the cylinder 17 of the feed section 11 extends in the direction of the arrow, and the feed rollers 16, 16 move toward the press roller 15. And
With one (lower) feed roller 16 and presser roller 15,
The belt-like rubber member 1 is sandwiched.

Thereafter, as shown in FIG.
The cylinder 14 attached to the lower part of the cylinder 2 contracts in the direction of the arrow, the operating swinging part 13 swings toward the drum 2 in the direction of the arrow, and the pressing roller 15 is pressed against the drum 2.

Then, as shown in FIG. 8A, the drum 2 rotates around the axis D in the forward arrow direction.
The pressing roller 15 that is in contact with the shaft also rotates around the axis B,
The feed rollers 16, 16 contacting the press roller 15 also rotate. Then, the belt-shaped rubber member 1 is sent forward, and the tip of the belt-shaped rubber member 1 is
And the winding start end of the band-shaped rubber member 1 is attached to the drum 2. Therefore, guidance up to the attachment of the belt-shaped rubber member 1 is reliably performed.

Then, as shown in FIG.
11 cylinder 17 contracts in the direction of the arrow, and feed rollers 16
The belt 16 is separated from the pressing roller 15, and the belt-shaped rubber member 1 is attached to the rotating drum 2.

After that, as shown in FIG. 8C, when the band-shaped rubber member 1 has been wound by winding it an appropriate number of times, the feed rollers 16, 16 are again moved toward the holding roller 15, and
The band-shaped rubber member 1 is sandwiched. The pressing roller 15 rotates together with the drum 2 until the sensor (not shown) for detecting the band-shaped rubber member 1 attached to the cutting mechanism 23 comes to a position for detecting the band-shaped rubber member 1, and the sensor is moved to the band-shaped rubber member. When the member 1 is detected, as shown in FIG. 8D, the tip of the built-in cutting blade 19 is protruded from the press roller 15 by the cutting mechanism 23, and the axial center B direction of the press roller 15 (a belt-shaped rubber member). 1 in the width direction) to cut the band-shaped rubber member 1. After the cutting, the winding rear end of the band-shaped rubber member 1 is attached to the drum 2.

Accordingly, the band-shaped rubber member 1 is sandwiched between the pressing roller 15 and the drum 2, and the band-shaped rubber member 1 is sandwiched between the pressing roller 15 and the feed rollers 16, 16. Since the cutting is performed, there is no play of the belt-shaped rubber member 1, so that the cutting failure does not occur. Further, the cycle time is shortened because the number of bonding or cutting steps is small.

FIG. 9 shows another embodiment of the device for attaching a belt-shaped rubber member for a tire. FIG.
Is attached so that the band-shaped rubber member 1 is attached from below the drum 2. Further, the band-shaped rubber member attaching section 7 is attached to the attaching device so as to be movable up and down.
(At this time, the height position is adjusted by the stopper 30.) Then, while the drum 2 rotates clockwise in FIG. 1, the drum 2 rotates counterclockwise in FIG.
The belt-shaped rubber member 1 is stuck.

The present invention is not limited to the above-described embodiment. For example, the number of the pasting heads 3 may be increased and the band-shaped rubber members 1... The belt-shaped rubber members 1 may be simultaneously attached to the same number of the drums 2 as the number of the attaching heads 3 in such a manner that the belt 2 and the drum 2 correspond to each other, so that the working time can be shortened. The design can be changed without departing from the range.

[0033]

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

According to the first aspect of the present invention, the belt-shaped rubber member 1 is sandwiched between the pressing roller 15 and the feed rollers 16 and 16 and is attached to the drum 2. Until the start end is affixed to the drum 2, the belt-like rubber member 1 is reliably guided. Further, since the cutting blade 19 is built in the pressing roller 15, there is no play of the band-shaped rubber member 1 at the time of cutting, so that cutting can be reliably performed without causing a cutting defect. Thus, secure attachment is performed.
In addition, the structure is simple, the number of attaching and cutting steps is small, and the cycle time is short.

According to the second aspect of the present invention, the guiding of the belt-shaped rubber member 1 can be more reliably performed not only during the time when the winding start end of the belt-shaped rubber member 1 is attached to the drum 2 but also during the application. .

According to the third aspect, the belt-shaped rubber member 1 having a predetermined length can be cut if the belt-shaped rubber member 1 is sensed, automatically cut, and recognized in advance. In addition, cutting can be performed more reliably without causing cutting defects.

[Brief description of the drawings]

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

FIG. 2 is a side view for explaining the operation of the pasting head.

FIG. 3 is a sectional view of a main part.

FIG. 4 is a plan view illustrating the operation of the cutting mechanism.

FIG. 5 is an operation explanatory view of a cutting blade.

FIG. 6 is an operation explanatory view showing an attached state.

FIG. 7 is an operation explanatory view showing an attached state.

FIG. 8 is an operation explanatory view showing an attached state and a cut state.

FIG. 9 is a side view showing another embodiment.

FIG. 10 is a first explanatory diagram showing a conventional example.

FIG. 11 is a second explanatory diagram showing a conventional example.

FIG. 12 is a third explanatory diagram showing a conventional example.

[Explanation of symbols]

 1 band-shaped rubber member 2 drum 15 holding roller 16 feed roller 19 cutting blade 23 cutting mechanism B axis

Claims (3)

[Claims] An apparatus for spirally winding a tire-constituting belt-shaped rubber member (1) having a cord embedded therein on a drum (2), comprising a pressing roller (15) and feed rollers (16, 16). The belt-like rubber member 1 is pressed in cooperation with the rollers 16 and 16 on the drum 2 with the belt-like rubber member 1 sandwiched therebetween. By rotating the drum 2, the winding start end of the belt-like rubber member 1 is attached to the drum 2. Further, the pressing roller 15 has a built-in cutting blade 19 for cutting the trailing end of the belt-shaped rubber member 1 after the winding is completed. . 2. The apparatus according to claim 1, wherein the feed rollers 16, 16 are configured to be able to abut or separate from the pressing roller 15. 3. A cutting mechanism 23 is provided on the pressing roller 15 or in the vicinity thereof. The cutting mechanism 23 senses the band-shaped rubber member 1 and causes the tip of the built-in cutting blade 19 to protrude from the pressing roller 15. The tire-shaped band-shaped rubber member sticking device according to claim 1 or 2, wherein the band-shaped rubber member 1 is cut by moving the pressing roller 15 in the axial center B direction.