JP6720695B2 - Sticking device for band-shaped sponge body and sticking method - Google Patents

Description

The present invention relates to a band-shaped sponge body sticking device and a sticking method for sticking a band-shaped sponge body to a tire tread inner surface in the tire circumferential direction.

The following Patent Document 1 proposes a belt-shaped sponge body sticking device for sticking a belt-shaped sponge body to the inner surface of a tire tread in the tire circumferential direction.

As shown in FIG. 7, a patch a of the proposed device includes a sponge holding container b and a guide roller c. The sponge holding container b holds a strip-shaped sponge body S with release paper in a spirally wound state. The guide roller c guides the strip-shaped sponge body S pulled out from the take-out port b1 of the sponge holding container b to the inner surface of the tread. Further, the strip-shaped sponge body S is sequentially pulled out from the take-out port b1 together with the release paper B by the release paper winding roller e that collects and winds the release paper B.

In such a sticking tool a, the rear end of the band-shaped sponge body S is detached from the release paper B and is in a free state when the sticking is completed. Therefore, there is a problem in that the rear end portion is largely displaced in the width direction and the quality is deteriorated. In the device of Patent Document 1, since the frame f supporting the sticking tool a can function as a stopper to the one side surface in the width direction, only the positional deviation to the other side surface in the width direction becomes a problem.

JP, 2007-168243, A

Therefore, in the present invention, the first stopper is provided between the take-out port and the guide roller, and the rear end portion of the band-shaped sponge body is displaced toward the one side surface in the width direction at the end of attachment. It is an object of the present invention to provide a band-shaped sponge body sticking device and a sticking method capable of suppressing the above-mentioned problems and improving the quality.

The first invention of the present application is a device for sticking a belt-shaped sponge body in a tire circumferential direction on an inner surface of a tread of a tire that rotates around a horizontal axis,
Including a frame that can be lifted and lowered, and a sticking tool that is attached to this frame,
The applicator includes a sponge holding container in which a band-shaped sponge body having an adhesive surface covered with a release paper is held in a spirally wound state, and the band-shaped sponge drawn out from the sponge holding container. With a guide means for guiding the sponge body to the inner surface of the tread,
The sponge holding container is a ring-shaped sponge body that has an annular shape surrounding the outer circumference of the wound body and has a circular ring-shaped part with an outlet formed therein, and the peripheral frame part that is attached to the frame and has the band-shaped sponge body. Form a container having a side plate part that closes on one side in the direction,
Moreover, the guide means is arranged at least between the guide roller for guiding the strip-shaped sponge body drawn downward from the take-out port to the inner surface of the tread, and at least between the take-out port and the guide roller. It is characterized in that it is provided with a first stopper for preventing the displacement on the other side surface side.

In the band-shaped sponge body sticking device according to the present invention, the sticking tool drives a release paper winding roller that collects and winds the release paper from the band-shaped sponge body pulled out from the take-out port, and the release paper winding roller. It is preferable to include a drive motor composed of a servo motor, and a control means for controlling the number of revolutions of the drive motor so as to match the speed Vb of collecting the release paper with the speed Va of the inner surface of the tread.

In the strip-shaped sponge body sticking apparatus according to the present invention, a part of the frame is interposed at least between the take-out port and the guide roller, and the strip-shaped sponge body is displaced from one side surface in the width direction. It is preferable to construct a second stopper for preventing.

The second invention of the present application is a sticking method for sticking a band-shaped sponge body in a tire circumferential direction on an inner surface of a tread of a tire rotating around a horizontal axis, using the sticking device according to any one of claims 1 to 3. There
A mounting step of mounting the band-shaped sponge body in the sponge holding container in a state where one end in the length direction thereof protrudes downward from the outlet.
After inserting the applicator with the band-shaped sponge body mounted inside the tire cavity, lower and stop the applicator to a standby position where the height of the lower end of the guide roller from the inner surface of the tread is 30 mm or less. A sticking preparation process,
And after the sticking preparation step, start rotating the tire, and then start pulling out the band-shaped sponge body from the sponge holding container, and further lower the sticking tool from the standby position to rotate the tread. It is characterized by including a sticking start step of bringing one end of the band-shaped sponge body into contact with the inner surface to start sticking.

According to the present invention, as described above, since the first stopper is provided between the take-out port and the guide roller, the rear end of the band-shaped sponge body is displaced toward the one side surface in the width direction at the end of attachment. Can be suppressed and quality can be improved.

It is a side view which shows one Example of the sticking device of the strip-shaped sponge body of this invention. It is a front view which shows an attachment with a frame. It is a side view which shows an attachment with a frame. (A), (B) is the front view and side view which show a mounting process. (A) and (B) are the front views and side views which show a sticking preparation process. (A), (B) is a front view and a side view showing a step of showing a sticking start step. It is a front view which shows a prior art.

Hereinafter, embodiments of the present invention will be described in detail.
As shown in FIG. 1, a strip-shaped sponge body sticking apparatus 1 (hereinafter simply referred to as “sticking apparatus 1”) of the present embodiment includes a frame 2 that is supported so as to be able to move up and down, and a sticking tool 3 that is attached to the frame 2. including. The sticking apparatus 1 sticks a sound-suppressing band-shaped sponge body S in the tire circumferential direction on a tread inner surface Ts of a tire T that rotates around a horizontal tire axis.

The pasting device 1 of this example is configured to further include a traverse means 28, a lifting means 29, and a height adjusting means 31.

The traverse means 28 moves the sticking tool 3 in the tire axial direction via the frame 2. As a result, the patch 3 can be inserted into and removed from the tire lumen H. The elevating means 29 elevates and lowers the sticking tool 3 inserted into the tire inner cavity from the rising position P1 to the sticking position P3. The height adjusting means 31 adjusts the height of the patch 3 at the raised position P1 according to the tire size.

Specifically, the height adjusting means 31 includes a vertical guide guide portion 34 arranged on the support base 33 and a height adjusting base 35 that can be vertically moved by being guided by the vertical guide guide portion 34. Equipped. The height adjusting table 35 can be moved up and down by a driving unit having a ball screw mechanism or the like, so that the sticking tool 3 at the raised position P1 can be inserted/removed into/from the tire inner cavity H depending on the tire size. Adjust the height.

The traverse means 28 includes a lateral guide guide portion 36 arranged on the height adjusting base 35 and a lateral moving base 37 which is guided by the lateral guide guide portion 36 and can move forward and backward in the tire axial direction. Equipped. The lateral moving table 37 can be moved between two positions of a backward moving position Qr and a forward moving position Qf by a driving means 38 such as a cylinder. At the retracted position Qr, the sticking tool 3 is located outside the tire inner cavity H, and the tire T is loaded and unloaded, and the band-shaped sponge body S is mounted on the sticking tool 3. Further, at the forward position Qf, the sticking tool 3 is inserted into the tire inner cavity H.

The elevating means 29 includes a vertical guide guide portion 40 arranged on the horizontal moving table 37, and an elevating body 41 that can be vertically moved by being guided by the vertical guide guide portion 40. The sticking tool 3 is attached to the front end of the elevating body 41 via the plate-shaped frame 2, and the sticking tool 3 is moved up and down from the rising position P1 to the sticking position P3 by the driving means 42 such as a cylinder.

As shown in FIGS. 2 and 3, the sticking tool 3 includes a sponge holding container 4, a guiding means 5, and a release paper collecting means 6.

The sponge holding container 4 holds a long band-shaped sponge body S in the state of a spirally wound body SA. The band-shaped sponge body S has an adhesive surface covered and protected by a release paper B, and in this example, the release paper B is spirally wound outward in the radial direction. The sponge holding container 4 has an annular peripheral frame portion 7 that surrounds the outer periphery of the wound body SA, and a side plate portion 8 that closes the peripheral frame portion 7 on one side in the width direction of the band-shaped sponge body S. Make a container. The side plate portion 8 is fixed to the frame 2. Further, the peripheral frame portion 7 is provided with a take-out port 7A formed by cutting a part of the annular shape thereof.

The take-out port 7A of the present example faces a first guide piece 7a extending from one opening edge in the circumferential direction to the lower side in the tangential direction of the peripheral frame portion 7, and faces the first guide piece 7a from the other opening edge. Second guide pieces 7b extending parallel to each other are included.

The guide means 5 includes a guide roller 9 and a first stopper 10, and guides the band-shaped sponge body S pulled out from the take-out port 7A to the inner surface Ts of the tread. In FIG. 2, the first stopper 10 is shown by a chain line.

In this example, the guide roller 9 is arranged on the side of the second guide piece 7b. Then, the strip-shaped sponge body S that is pulled out downward from the take-out port 7A and the release paper B is peeled off is guided to the inner surface Ts of the tread by the outer peripheral surface of the guide roller 9. The guide roller 9 of this example is provided with flange portions 9a at both ends in the axial direction of the guide roller 9 for suppressing displacement of the band-shaped sponge body S in the width direction. The guide roller 9 is rotatably supported by the frame 2.

The first stopper 10 includes a guide plate portion 10a extending at least between the take-out port 7A and the guide roller 9 in parallel with the frame 2. Then, the band-shaped sponge body S is sandwiched between the guide plate portion 10a and the frame 2 and guided from the take-out port 7A to the guide roller 9. Therefore, when the rear end of the belt-shaped sponge body S is free from the release paper B when the belt-shaped sponge body S has been attached, the rear end of the belt-shaped sponge body S moves to the other side surface in the width direction. The displacement to the side can be prevented by the guide plate portion 10a.

Further, the frame 2 can prevent the displacement to one side in the width direction. That is, in this example, a part of the frame 2 is interposed at least between the take-out port 7A and the guide roller 9 to prevent the band-shaped sponge body S from being displaced to one side surface in the width direction. It constitutes the stopper 11.

The first stopper 10 has a bent portion 10b, which is screwed to the peripheral frame portion 7, for example, at the upper end of the guide plate portion 10a. Further, in order to prevent the displacement of the band-shaped sponge body S, the lower end of the guide plate portion 10a is preferably located below the axis of the guide roller 9, and particularly, the axis of the guide roller 9 and the guide It is preferably located between the lower end of the roller 9.

The release paper collecting means 6 includes a release paper take-up roller 12 that sequentially collects and winds the release paper B from the band-shaped sponge body S drawn out from the take-out port 7A, and a drive motor 13 that drives the release paper take-up roller 12. , And its control means 14. In FIG. 3, the release paper collecting means 6 is shown by a chain line.

In this example, a case is shown in which a peeling roller 15 is further provided between the peeling paper take-up roller 12 and the take-out port 7A. The peeling roller 15 is arranged on the side of the first guide piece 7a, contacts the release paper B of the band-shaped sponge body S, and changes the direction of the release paper B, so that the release paper B is removed from the band-shaped sponge body S. Can be peeled off.

The release paper take-up roller 12 takes up and collects the release paper B from the release roller 15. In addition, a slit 12a is formed on the outer peripheral surface of the release paper take-up roller 12 to hold the front end of the release paper B in between.

A servo motor is used as the drive motor 13. Here, since the release paper B is sequentially wound and laminated on the outer periphery of the release paper take-up roller 12, the outer diameter of the rolled release paper B that has been wound is sequentially increased. Therefore, if the rotation speed of the drive motor 13 is constant, the pulling speed (corresponding to the collecting speed) of the strip-shaped sponge body S drawn from the sponge holding container 4 by the peeling paper take-up roller 12 is equivalent to that of the peeling paper B. Increases with progress. On the other hand, the speed of the tread inner surface Ts to which the band-shaped sponge body S is attached is constant. Therefore, the band-shaped sponge body S cannot be attached with a constant tensile force, and the density and height of the band-shaped sponge body S become uneven in the circumferential direction, which adversely affects the sound absorbing performance.

Therefore, in this example, a servomotor is used as the drive motor 13, and the control unit 14 controls the number of rotations of the drive motor 13 to match the recovery speed Vb of the release paper B with the speed Va of the tread inner surface Ts. .. The control means 14 includes a sensor (not shown) that detects the collection speed Vb of the release paper B. In the present example, as the sensor, for example, a roller encoder that comes into contact with the outer periphery of the roll-shaped release paper B wound by the release paper take-up roller 12 is used, and the recovery speed Vb of the release paper B is detected by the pulse signal thereof. doing. Further, the control means 14 controls the recovery speed Vb based on this detected value.

Reference numeral 20 in the drawing denotes a pressure roller, which presses the band-shaped sponge body S guided by the inner surface Ts of the tread against the inner surface Ts of the tread to increase the attachment strength. The pressure roller 20 is rotatably supported on the lower end of a rod of a cylinder 21 supported by the frame 2.

Next, a method of sticking the band-shaped sponge body S using the sticking device 1 will be described.
As shown in FIGS. 4 to 6, the sticking method includes a mounting step K1, a sticking preparation step K2, and a sticking start step K3.

As shown in FIGS. 4(A) and 4(B), in the mounting step K1, at the retracted position Qr where the sticking tool 3 is located outside the tire lumen H, the spiral band-shaped sponge body S is moved in the longitudinal direction. One end Se is attached in a state Y1 protruding downward from the outlet 7A. The release paper B is manually peeled from the protruding strip-shaped sponge body S, and the tip of the peeled release paper B is locked in the slit 12 a of the release paper winding roller 12. In the state Y1, the one end Se of the band-shaped sponge body S is located above the lower end of the guide roller 9.

In the sticking preparation step K2, as shown in FIGS. 5(A) and 5(B), after the sticking tool 3 to which the band-shaped sponge body S is attached is inserted into the tire inner cavity, the sticking tool 3 is moved to the standby position. Lower to P2 and stop. The standby position P2 means a height position where the height h from the inner surface Ts of the tread to the lower end of the guide roller 9 is 30 mm or less.

In the sticking start step K3, as shown in FIGS. 6A and 6B, the tire T starts rotating after the sticking preparation step K2. Then, the withdrawal of the band-shaped sponge body S is started, and the sticking tool 3 is further lowered from the standby position P2 to the sticking position P3. As a result, one end Se of the band-shaped sponge body S is brought into contact with the rotating tread inner surface Ts, and the attachment is started.

If one end Se of the band-shaped sponge body S is lowered and brought into contact with the stopped inner surface Ts of the tread before the tire T starts to rotate, one end Se of the band-shaped sponge body S is bent due to the impact or the like. As a result, the adhesive surfaces tend to be deformed such that the adhesive surfaces adhere to each other. If the standby position P2 is too high, the strip-shaped sponge body S will come into contact with the tread inner surface Ts in an unstable state in which it is pulled out for a long time. Therefore, the pulled-out portion is likely to shake or deform, and it becomes difficult to cleanly attach the accurate portion without causing wrinkles or distortion.

Although the particularly preferred embodiments of the present invention have been described above in detail, the present invention is not limited to the illustrated embodiments and can be modified into various modes.

1 Band-shaped sponge sticking device 2 Frame 3 Sticking tool 4 Sponge holding container 5 Guide means 6 Release paper collecting means 7A Ejection port 7 Surrounding frame 8 Side plate 9 Guide roller 10 First stopper 11 Second stopper 12 Release paper winding Taking roller 13 Drive motor 14 Control means h Height B Release paper H Tire inner cavity K1 Mounting step K2 Pasting preparation step K3 Pasting starting step P2 Standby position Se One end SA Rolled body S Band-shaped sponge body Ts Tread inner surface T Tire

Claims (4)

A device for sticking a belt-shaped sponge body in the tire circumferential direction on the inner surface of a tread that rotates around a horizontal axis,
Including a frame that can be lifted and lowered, and a sticking tool that is attached to this frame,
The applicator is a sponge holding container in which a band-shaped sponge body having an adhesive surface coated with a release paper is held in a spirally wound body.
The strip-shaped sponge body pulled out from the sponge holding container is provided with guide means for guiding the inner surface of the tread,
The sponge holding container is a ring-shaped sponge body that has an annular shape surrounding the outer circumference of the wound body and has a circular ring-shaped part with an outlet formed therein, and the peripheral frame part that is attached to the frame and has the band-shaped sponge body. Form a container having a side plate part that closes on one side in the direction,
Moreover, the guide means is arranged at least between the guide roller for guiding the strip-shaped sponge body drawn downward from the take-out port to the inner surface of the tread, and at least between the take-out port and the guide roller. An applicator for a band-shaped sponge body, comprising a first stopper that prevents the side surface from shifting to the other side. The applicator includes a release paper take-up roller that collects and winds the release paper from a strip-shaped sponge body drawn out from the take-out port, a drive motor that is a servo motor that drives the release paper take-up roller, and a drive motor of the drive motor. The strip-shaped sponge body sticking device according to claim 1, further comprising: a control unit that controls the number of rotations to match the speed Vb of collecting the release paper with the speed Va of the inner surface of the tread. Part of the frame is provided at least between the take-out port and the guide roller, and constitutes a second stopper for preventing the band-shaped sponge body from being displaced to one side surface in the width direction. The device for attaching a band-shaped sponge body according to claim 1 or 2. A sticking method for sticking a belt-shaped sponge body in the tire circumferential direction on the tread inner surface of a tire rotating around a horizontal axis, using the sticking device according to claim 1.
A mounting step of mounting the band-shaped sponge body in the sponge holding container in a state where one end portion in the length direction thereof protrudes downward from the outlet.
After inserting the patch having the band-shaped sponge body inserted into the inner cavity of the tire, lower and stop the patch to a standby position where the height of the lower end of the guide roller from the inner surface of the tread is 30 mm or less. A sticking preparation process,
And after the sticking preparation step, start rotating the tire, and then start pulling out the band-shaped sponge body from the sponge holding container, and further lower the sticking tool from the standby position to rotate the tread. A method for sticking a band-shaped sponge body, comprising a sticking start step of bringing one end of the band-shaped sponge body into contact with the inner surface to start sticking.

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