JPH106413A - Method for supplying strip like material and apparatus therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To supply a strip like material capable of reducing the number of laminating processes and the apparatus therefor, capable of enhancing productivity and capable of being enhanced in laminating accuracy and quality. SOLUTION: An embossing apparatus 11 capable of rising and falling and embossing the laminated strip like material Wx unwound by predetermined length from a thick wound roll 10a to a recessed part having an almost V-shaped cross section at the position of the length D corresponding to the width of a molding drum over the total width of the laminated strip like material Wx and a cutting device 12 equipped with a disc-shaped cutter 12a cutting the recessed part of the embossed strip like material Wx over the total width of the laminated strip like material Wx are arranged on a standard length conveyor 7a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for feeding a band-shaped material, and more particularly, to a plurality of sheet-shaped band-shaped materials (carcass, carcass, etc.) each having a width corresponding to the winding length of a forming drum. When a green tire is formed by sequentially laminating a butyl liner, an intermediate sheet, etc.) on a forming drum, a plurality of sheet-like band-like materials [butyl liner (also referred to as butyl rubber), intermediate sheet (also referred to as tie rubber)] are prepared in advance. By laminating and feeding this laminating strip material by embossing and cutting to a fixed size, the number of laminating steps and the number of devices can be reduced, productivity can be improved, and laminating accuracy can be improved. The present invention relates to a method and an apparatus for feeding a strip-shaped material, which can improve the quality of the material and further improve the quality.

[0002]

2. Description of the Related Art In general, when a member to be bonded is composed of a plurality of layers in forming a tire, steps at both ends of each layer are dispersed from the viewpoint of failure of the formed tire and durability. So different materials are used. That is, in the conventional tire molding method, as shown in FIGS. 5A and 5B, a butyl liner X and an intermediate rubber sheet Y (also referred to as a tie rubber) are separated from each other by a dimensional difference in the drum width direction. And the sheet materials X and Y are stuck on both sides so that the steps are dispersed.

[0003] Therefore, when a plurality of rubber sheets constituting a tubeless liner are laminated and pasted on a tire building drum, individual stock rolls each having a band-shaped material wound thereon to a predetermined width are supplied to a servicer of a forming machine. Unwind and used.

[0004]

Therefore, it is necessary to increase the size of the equipment and increase the required space.
It takes time and effort to supply and wind the band-shaped material, the cycle time becomes substantially longer, and the present application is also applied to the case where a band-shaped material having a width corresponding to the winding length on the forming drum is to be bonded. As disclosed in Japanese Patent Application No. 6-2977000 proposed by a person, a thin rubber sheet material has to be stuck alone, and there is a problem that a trouble is likely to occur.

The present invention has been devised in view of such a conventional problem, and a sheet-like band-shaped material of the same width formed in a width substantially corresponding to the peripheral length of a forming drum is bonded in advance. A laminating strip material is formed, and the laminating strip material is unwound from a thick roll by a predetermined length, and is positioned at a length corresponding to the width of the forming drum, and at the entire width of the laminating strip material (drum width in the circumferential direction of the drum). ), The center of the concave portion is cut after embossing into a substantially V-shaped cross section, and the cut strip-shaped laminated material is laminated in a direction perpendicular to the unwinding direction of the strip-shaped material. By transferring the material to the conveyor and supplying it sequentially to the forming drum side, the process of pasting the respective band-shaped materials can be omitted, the equipment of the apparatus can be simplified, and the required space is reduced. Can be reduced, and the cycle time is shortened. In addition, by embossing the cutting position of the lamination material, the step on both sides in the width direction of the lamination material is minimized, and the occurrence of air accumulation can be effectively prevented, and the lamination accuracy can be improved. It is an object of the present invention to provide a method and an apparatus for feeding a belt-shaped material capable of improving the quality by improving the quality.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention is an apparatus for feeding and winding a belt-like material laminated on a forming drum via a conveyor, wherein the conveyor comprises an adhering conveyor and an adhering belt. Laminating conveyors are arranged in series, and on at least one side in the longitudinal direction of the laminating conveyor, a take-up conveyor and a fixed-length conveyor are installed linearly in a direction orthogonal to the laminating conveyor, On the conveyor, the laminating band material unwound from the thick roll,
An embossing device for embossing a concave portion having a substantially V-shaped cross section at a length position corresponding to the forming drum width and over the width of the laminated belt-shaped material in the circumferential direction of the drum; and cutting the embossed concave portion. A gist of the invention is that a cutting device is provided, and a transfer device for transferring the cut-to-size bonded laminating material on the lamination conveyor is provided on the take-off conveyor.

[0007] The present invention is configured as described above,
A sheet-like band-like material formed in the same width with a width substantially corresponding to the circumference of the forming drum is laminated and wound on a thick roll, and the laminated band-like material unwound from the thick roll is placed on a fixed-size conveyor. To the specified length. Then, at the length position corresponding to the width of the forming drum and over the entire width (width in the circumferential direction of the drum) of the laminated band-shaped material, the embossing device is embossed into a substantially V-shaped cross section, and then the embossed concave portion is formed. Cut along the center with a cutting device.

[0008] Thereafter, the lamination strip material cut to a fixed length is transferred by a transfer device to a lamination conveyor arranged in a direction orthogonal to the unwinding direction of the strip material, and is sequentially supplied to the forming drum side. It is to be wound. In addition, a sheet-shaped band-shaped material that has been cut to a fixed size in advance, from one of the take-up conveyors arranged in series across the laminating conveyor,
It is transferred to a predetermined position on the laminating conveyor, and on the laminating material on the laminating conveyor, the laminating belt-like material is transferred from the other take-up conveyor and laminated. It is also possible to sequentially supply the laminated lamination material to the forming drum side by a lamination conveyor or through a lamination conveyor.

By sequentially supplying the band-shaped material to the forming drum side by the above-described method, the operation of pasting a plurality of rubber sheets each having a different width corresponding to the width of the drum in the previous process is simplified. Or the step of laminating the respective band-shaped materials on the forming drum can be omitted, the apparatus can be simplified, the required space can be reduced, and the productivity can be further improved. By embossing the cutting position of the bonded band material, the step on the both sides in the drum circumferential direction of the band material is minimized, the occurrence of air accumulation can be effectively prevented, and the bonding accuracy is improved to improve the quality. Can do that.

[0010]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is an overall perspective view of a feeding device 1 for a strip-shaped material according to the present invention, and FIG. 2 is a plan view of the feeding device 1. The feeding device 1 is provided with a plurality of forming drums 2 (or band drums). Multi-stage bonding conveyors 3a, 3b and laminating a sheet-like material W (carcass Wa, intermediate rubber (referred to as tie rubber) Wb, butyl liner Wc) which is laminated and laminated and supplied and laminated. A conveyor 4 is arranged on a gantry 5 in series.

On both sides of the laminating conveyor 4 in the longitudinal direction, take-off conveyors 6a and 6b and fixed-length conveyors 7a and 7b are mounted on a stand 8 in a direction orthogonal to the laminating conveyor 4.
a, 8b so as to be connected linearly. Thick rolls 10a, 10b rotatably supported on movable carts 9a, 9b are arranged on the supply side of the belt-shaped material W of the fixed-size conveyors 7a, 7b. As shown in FIGS. 3A and 3B, the thick winding roll 10a located on the supply side has a sheet-like belt shape of the same width formed in advance with a width L substantially corresponding to the circumferential length of the forming drum 2. Material, butyl liner W in an embodiment of the present invention
The laminated band-shaped material Wx formed by laminating the intermediate rubber sheet W with the intermediate rubber sheet Wb in a separate step is wound up.

A thick band roll 10b located on the supply side of the other fixed-size conveyor 7b has a sheet-like band-like material formed with a width L substantially corresponding to the circumferential length of the forming drum 2. In the embodiment, the carcass Wa is wound. On one of the fixed-size conveyors 7a, a lamination strip material Wx unwound from the thick roll 10a by a predetermined length is placed at a length D corresponding to the width of the forming drum, and a lamination lamination material is formed. The cross-section is approximately V over the entire width of Wx (the width in the drum circumferential direction).
A vertically movable embossing device 11 for embossing in the shape of a letter, and a laminating band-shaped material Wx
And a cutting device 12 having a disk-shaped cutter 12a for cutting over the entire width of the cutting machine.

On the take-off conveyor 6a, a CCD line sensor 13 for measuring the width (length in the drum circumferential direction) of the cut and bonded laminating strip material Wx is provided. A transfer device 15 for transferring the band-shaped material Wx to the surface of the transfer roll 14 and transferring it to the bonding conveyor 4 and bonding the same is provided. Also, on the other fixed-size conveyor 7b, a pre-packing device 16 (air bleeding device) that pierces a carcass Wa unwound from the thick roll 10b by a predetermined length to form a large number of holes to bleed air, Cutting device 12 provided with disk-shaped cutter 12a
And a length measuring sensor 13 such as a CCD line sensor for measuring the width (length in the drum circumferential direction) of the cut-to-size carcass Wa, and moving the cut-to-size carcass Wa in the horizontal direction by suction and holding. In addition, a known flat carcass transfer device 17 for transferring to the laminating conveyor 4 is provided.

The embossing device 11 and the cutting device 12
An apparatus similar to that described in Japanese Patent Application No. 5-140842 filed on Jun. 11, 1993 filed by the present applicant is used. That is, the stamping device 11 is a stamping die 1 provided with a mountain-shaped projection at the lower end of a plate-like stamping member 11a that can be moved up and down via a not-shown elevating cylinder.
1b is mounted horizontally, and has a projection 1 having a mountain-shaped projection via the die 11a by the lifting cylinder.
1b, the bonded band-shaped material Wx is lowered.
Is embossed into a concave portion having an inclined surface Ws having a substantially V-shaped cross section along the cut portion.

The cutting device 12 includes a support member slidably mounted along a guide rail (not shown), and a rotatably supported disk-shaped cutter 12a disposed below the support member. The cutter 12a is connected to a lift cylinder (not shown) fixed to a support member so as to be able to move up and down. The support member is connected to a piston rod of a travel cylinder (not shown), and Material Wx
Is configured to be able to reciprocate in the width direction.

The cutter 12a is driven along the center of the concave portion having a substantially V-shaped cross section pressed by the stamping device 11 to cut the sheet into a predetermined length. Further, the transfer device 15 is the same as that of Heisei 6
An apparatus similar to the one described in Japanese Patent Application No. 6-297000 filed on Nov. 30, 2011 is used.

That is, the transfer roll 14 of the transfer device 15 is
On the take-up conveyor 6a, the laminating band-shaped material Wx conveyed while rotating along the width direction is wound and held on the outer peripheral surface, and is raised while being wound and held. To the bonded strip material W
x is pasted on the carcass Wa previously transferred. Next, a method for supplying the belt-shaped material will be described.

First, a butyl liner Wc of the same width and a middle rubber sheet (tie rubber) formed in advance with a width L substantially corresponding to the peripheral length of the forming drum 2 are provided on the supply side of the belt-shaped material W of the fixed-size conveyors 7a and 7b. A roll 9a is formed by laminating a thick roll 10a wound with a Wb and a thick roll 10b wound with a carcass Wa formed with a width L substantially corresponding to the circumference of the forming drum 2. , 9b at a predetermined position.

In the embodiment of the present invention, when the butyl liner Wc is bonded to the one-layer carcass Wa via the intermediate rubber sheet Wb and supplied, the carcass Wa is first supplied from the thick roll 10b to a predetermined position. Length conveyor 7
b, and a number of holes for bleeding air are formed in the surface of the carcass Wa by the precking device 16 (air bleeding device).

Thereafter, the carcass Wa is fed out by a predetermined length. At this time, the width of the carcass Wa (the length in the drum circumferential direction) is measured by the length measuring sensor 13. Next, the disc is cut into a length corresponding to the width of the forming drum by the disc-shaped cutter 12a of the cutting device 12, and the carcass Wa cut to the fixed size is sucked and held by the known flat disc-shaped carcass transfer device 17. It is moved in the horizontal direction and is transferred to a predetermined position on the bonding conveyor 4.

Next, from the above-described state, a lamination strip-shaped material Wx obtained by laminating the intermediate rubber sheet Wb and the butyl liner Wc wound on the thick roll 10a in advance is placed on a fixed-size conveyor 7a. , And the cutting position is stamped by the stamping device 11 at a length D position corresponding to the width of the forming drum and over the entire width of the laminating band material Wx into a substantially V-shaped cross section.

Then, the embossed lamination material W
The center of the concave portion at the cutting position of x is cut by the disk-shaped cutter 12a of the cutting device 12 over the entire width (in the circumferential direction of the drum), and the bonded strip-shaped material Wx cut into the fixed length is conveyed onto the take-up conveyor 6a. I do. The laminating band material Wx conveyed on the take-up conveyor 6a is transferred onto the surface of the rotatable transfer roll 14 of the transfer device 15, and then the transfer roll 14 is raised, and the transfer belt 14 is moved onto the bonding conveyor 4. The laminating belt-shaped material Wx is laminated on the carcass Wa previously transferred to a predetermined position on the laminating conveyor 4 while rotating the transfer roll 14.

The band-shaped material W thus bonded is
The carcass Wa and the laminating band material Wx are transported by the laminating conveyor 4 onto the laminating conveyor 3a positioned on the forming drum 2 side, and the laminating conveyor 3a is advanced to the laminating drum 2 side and then swung upward. Is adhered to the surface of the forming drum 2. in this case,
Since the butyl liner Wc is laminated on the carcass Wa via the intermediate rubber sheet Wb, in order to stick the butyl liner Wc on the surface side of the forming drum 2, a sticking conveyor is provided from below the forming drum 2. It is necessary to move and paste 3a.

It should be noted that the pasting conveyor 3a is formed of the forming drum 2
, The order of attachment is reversed, so that the order of lamination of the carcass Wa and the laminated band material Wx needs to be reversed. Here the carcass Wa
And the intermediate rubber sheet Wb and the butyl liner Wc, which have been bonded in advance, are not necessarily bonded before being wound around the forming drum 2, and as another embodiment, Japanese Patent Application No. 6-306507 filed by the present applicant. As proposed in the above, they may be separately arranged at intervals on a long sticking conveyor.

As shown in FIGS. 1 and 4 (a) to 4 (f), a sorting conveyor 4a is used instead of the laminating conveyor 4, and the laminating conveyors 3a and 3b are arranged in two stages.
The bonded body (Wb + Wc) of the intermediate rubber sheet Wb and the butyl liner Wc may be separately arranged on the one attaching conveyor 3a and the carcass Wa on the other attaching conveyor 3b. Reference numeral 20 denotes a retraction holding device for the carcass Wa, 2
Reference numeral 1 denotes a rear end detection sensor.

Then, a bonded body (Wb + W) of the intermediate rubber sheet Wb and the butyl liner Wc is placed on the bonding conveyor 3a.
c) is transferred, moved to the forming drum 2 side, and a bonded body (Wb + Wc) is attached from below the forming drum 2 (see FIGS. 4A to 4C), and then, FIG. As shown in ()), after the pasting conveyor 3a is retracted, the pasting conveyor 3b is advanced, and the carcass Wa on the pasting conveyor 3b is pasted on the laminated body (Wb + Wc) of the forming drum 2.

In the meantime, the sticking conveyor 3 which has retreated
As shown in FIG. 4 (e), the next bonded body (Wb + Wc) is supplied from the sorting conveyor 4a, and the original position is completed when the carcass Wa on the bonding conveyor 3b has been bonded. And the sorting conveyor 4a is swung to supply the next carcass Wa onto the pasting conveyor 3b.

By repeating the above steps, the bonded body (Wb + Wc) and the carcass Wa are sequentially bonded to the forming drum 2. In this case, the bonded body (Wb
The transfer device of + Wc) may be a flat plate-like device like the carcass Wa. With such a configuration, when the width (the length in the drum circumferential direction) of the carcass Wa changes by incorporating the carcass length correction mechanism disclosed in Japanese Patent Application No. 6-306507 proposed by the present applicant, the measurement is performed. Based on the length measurement result of the length sensor 13, it is possible to correct the length in the drum circumferential direction when winding around the forming drum 2, and it is possible to obtain an appropriate overlapping amount between the end portions. Further, it will be easily understood that a plurality of carcass materials may be used.

By sequentially supplying the band-shaped material W to the forming drum 2 by the above-described method, the operation of pasting a plurality of rubber sheets each having a different width corresponding to the drum width in the previous process can be simplified. Alternatively, it is possible to prepare a band-shaped material of each width for each size on the forming drum 2, and to omit the steps of unwinding and laminating and to simplify the apparatus.

Further, the required space can be reduced, and the productivity can be further improved. Further, by embossing the cutting position of the bonded band material, the steps on both sides in the width direction of the band material can be minimized. In addition, it is possible to effectively prevent the occurrence of air pockets, improve the bonding accuracy, and improve the quality. Here, the forming drum 2 is a band drum,
It may be either a forming drum of a first-stage molding machine or a drum of a single-stage molding machine.

[0031]

According to the present invention, an intermediate rubber sheet having a width substantially corresponding to the peripheral length of the forming drum and a butyl liner are previously laminated to form a laminated band-like material. The laminating band-shaped material is unwound from the thick roll by a predetermined length, and has a substantially V-shaped cross section at a position corresponding to the width of the forming drum and in the drum circumferential direction (full width) of the laminating band-shaped material. After embossing into the concave portion, cut and cut, and transfer this laminated strip material to a laminating conveyor or sorting conveyor arranged in a direction perpendicular to the unwinding direction of the strip material, and mold. Since the supply is sequentially performed to the drum side, the following excellent effects can be obtained. . The process of pasting the band-shaped materials having the respective widths for each size can be simplified. . The molding apparatus can be simplified and the required space can be reduced. . Productivity can be improved. . By embossing the cutting position of the bonded band material, the level difference on both sides in the circumferential direction of the drum of the band material is minimized, the occurrence of air accumulation can be effectively prevented, and the bonding accuracy is improved and the quality is improved. I can plan.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a belt-shaped material supply device according to the present invention.

FIG. 2 is a plan view of a supply device.

FIG. 3A is a plan view of a laminated band-shaped material according to an embodiment of the present invention, and FIG. 3B is a cross-sectional view of FIG.

4 (a) to 4 (f) are explanatory views showing a process of attaching a carcass and a bonded body of an intermediate rubber sheet and a butyl liner to a forming drum using a two-stage attaching conveyor.

FIG. 5A is a plan view of a conventional band-shaped material, and FIG. 5B is a cross-sectional view of FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Supply apparatus 2 Forming drum (band drum) 3a, 3b Laminating conveyor 4 Laminating conveyor 5 Stand 6a, 6b Pick-up conveyor 7a, 7b Standard conveyor 8a, 8b Stand 9a, 9b Trolley 10a, 10b Thick roll 11 Pressing device Reference Signs List 12 cutting device 12a disk-shaped cutter 13 length measuring sensor 14 transfer roll 15 transfer device 16 precking device 17 carcass transfer device L length corresponding to the peripheral length of forming drum D length corresponding to the width of forming drum W band Material Wx Laminated band material (Wb + Wc) Wa Carcass Wb Intermediate rubber Wc Butyl liner

Claims (8)

[Claims] 1. A sheet-shaped band-shaped material formed to have a width substantially corresponding to the circumference of a forming drum is unwound from a thick roll, and the band-shaped material is cut into a length corresponding to the width of the forming drum. After transferring a plurality of strip-shaped materials cut in this way to a conveyor arranged in a direction perpendicular to the unwinding direction, the strip-shaped material is sequentially supplied to the forming drum side via the conveyor and wound. A method of supplying a material, in which a plurality of sheet-like band-shaped materials having the same width formed in advance and having a width substantially corresponding to the peripheral length of a forming drum are pasted together and wound on a thick roll, and wound from the thick roll. The discharged laminating band-shaped material is fed out onto the fixed-size conveyor by a predetermined length, and a concave portion having a substantially V-shaped cross section is provided at a position corresponding to the width of the forming drum and over the drum circumferential width of the laminating band-shaped material. After embossing, then cutting along the embossed recess The laminated strip material cut to a fixed size is transferred to a conveyor arranged in a direction perpendicular to the unwinding direction of the strip material, and sequentially supplied to the forming drum side and wound. Material supply method. 2. The method according to claim 1, wherein the conveyor comprises a laminating conveyor and a laminating conveyor. 3. The method according to claim 1, wherein the conveyor is a pasting conveyor. 4. The method according to claim 1, wherein the conveyor is a distribution conveyor and a plurality of pasting conveyors. 5. A sheet-shaped band-shaped material, which has been cut in a predetermined length to a width substantially corresponding to the peripheral length of the forming drum and has a length corresponding to the width of the forming drum, is arranged in series across the laminating conveyor. From one of the provided take-up conveyors, it is transferred to a predetermined position on the laminating conveyor, and the band-like material on the laminating conveyor is transferred from the other take-up conveyor. The laminating band-like material laminated in this manner is laminated by a laminating conveyor.
2. The method according to claim 1, wherein the material is sequentially supplied to the forming drum via a pasting conveyor. 6. An apparatus for feeding and winding a laminated belt-like material onto a forming drum via a conveyor, wherein the conveyor comprises a lamination conveyor and a lamination conveyor arranged in series, and the lamination conveyor comprises: On at least one side in the longitudinal direction, a take-up conveyor and a fixed-length conveyor are installed linearly in a direction perpendicular to the laminating conveyor, and the lamination unwound from a thick roll on the fixed-length conveyor. An embossing device for embossing a band-shaped material into a recess having a substantially V-shaped cross section at a length position corresponding to the width of the forming drum, and over the width in the circumferential direction of the drum of the laminated band-shaped material; A cutting device for cutting the recess is installed, and on the take-off conveyor,
An apparatus for supplying a strip-shaped material, comprising a transfer device for transferring the cut strip-shaped material to a fixed size on the bonding conveyor. 7. The apparatus according to claim 6, wherein the conveyor comprises only a sticking conveyor. 8. The apparatus according to claim 6, wherein the conveyor includes a sorting conveyor and a plurality of pasting conveyors.