JPH1086239A - Method and device for automatic winding of belt-shaped material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a winding device which can wind a belt-shaped material automatically without necessitating hands, on the occasion of winding the material, and which has simple equipment and is inexpensive. SOLUTION: A timing belt 9 driven to rotate synchronously with a carrying conveyor is provided at least on one side part in the direction of carriage of the carrying conveyor, while the fore end Wa of a belt-shaped material W is clamped on the carrying conveyor, and a clamping means being movable back and forth in the horizontal direction on a forming drum 3 is provided. A belt clamping device 25 which can grasp and release the timing belt 9 is provided for the clamping means, and a sucking and holding means 31 which sucks the fore end of the belt-shaped material W and makes it held on the surface of the forming drum 3 is provided on the forming drum 3 or in the vicinity thereof.

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 automatically winding a belt-shaped material, and more specifically, for example, automatically cuts a fixed-size carcass band used as a forming member of a bias tire onto a forming drum. The present invention relates to an automatic winding method and an apparatus therefor.

[0002]

2. Description of the Related Art Conventionally, a band-shaped material such as a carcass band used as a molding member of a bias tire is formed on a multi-stage servicer provided on a side portion of a forming drum at a set length and at front and rear ends. The part is cut to a fixed length with a bias,
Then, the leading end of the band-shaped material cut to the fixed length is pulled out to the forming drum side, and an operator holds the leading end of the band-shaped material and presses the same to the surface of the forming drum.

[0003] However, since a band-like material such as a carcass band is non-adhesive, it is difficult to apply pressure to the surface of a forming drum.
There is a problem that it is necessary to apply an auxiliary agent such as rosin or adhesive tape, which requires much labor and time, and cannot improve workability and productivity. In addition, the conventional winding device requires expensive equipment and control such as a servo motor and a return / return conveyor of the servicer.Furthermore, since the tip of the band-shaped material is manually pulled and attached to the surface of the forming drum, the band-shaped material is There were problems such as deformation.

The present invention has been devised in view of such a conventional problem. When a band-shaped material having its tip cut at a fixed bias angle and cut to a fixed size is wound around a forming drum, a manual operation is required. By automatically winding without the intermediary of the belt, it is possible to improve the workability and productivity in the winding work of the belt-shaped material, and it is possible to use a simple equipment and a cheap winding device. It is an object of the present invention to provide a method and an apparatus for automatically winding a material.

According to the present invention, to achieve the above object, a timing belt that is driven to rotate in synchronization with the transport conveyor is provided on at least one side in the transport direction of the transport conveyor, and the leading end of the belt-shaped material is placed on the transport conveyor. And a clamp means capable of moving forward and backward in the horizontal direction on the forming drum is provided. The clamp means is provided with a belt clamp device capable of gripping or releasing the timing belt. The gist of the invention is that suction holding means for sucking and holding the leading end of the belt-shaped material is provided on the surface of the drum.

Further, a second extension cylinder is provided as the clamping means, and a magnet which can be attached to and detached from the molding drum as a suction holding means, or a suction drum provided inside the molding drum is provided. Is configured to suck the tip of the band-shaped material from a through hole formed on the surface of the belt. The present invention is configured as described above,
The tip of the band-shaped material previously cut to a fixed size on the servicer is gripped by a clamp means, and the clamp means is transported to the axis of the forming drum, and the tip of the band-shaped material is positioned on the forming drum. In a state in which the belt is rotated in the winding direction, the gripping state of the band-shaped material is released in a state in which the clamp means and the band-shaped material are further advanced, and the leading end of the band-shaped material is brought into contact with the forming drum to be driven by its own weight. Then, the leading end of the band-shaped material is suction-held on the surface of the forming drum via the suction-holding means, and the band-shaped material cut to a fixed size is automatically wound together with the rotation driving of the forming drum. An inexpensive winding device can be obtained.

[0007]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a front view of an entire automatic winding device for a strip-shaped material embodying the present invention, FIG. 2 is a plan view excluding a forming drum, and 1 is a plurality of winding rolls 2.
A multi-stage (four in this embodiment) servicer configured to sequentially supply the band-shaped material W wound up to the forming drum 3 is shown.

The servicer 1 comprises a conveyor 5 for transporting the band-shaped material W installed in four rows and horizontally on a frame 4, and a transport conveyor 6 connected to the transport conveyor 5 at a predetermined inclination angle toward the forming drum 3. On the horizontal transfer conveyor 5, the band-shaped material W unwound from the winding roll 2 is of a fixed size, and the front and rear terminals are set at a predetermined angle (for example, 20 ° to 80 °). A cutting device 7 for performing bias cutting is provided.

This cutting device 7 is provided with a cutter guide 7 which is disposed so as to be able to turn horizontally in the width direction of the conveyor 6.
The cutter 7b travels through the drive motor 7a via the drive motor 7a to cut the leading and trailing ends of the band-shaped material W with a bias. The conveyor belts 8 and 9 of the transfer conveyor 5 and the conveyor 6 are wound around drive pulleys 10a and 11a and driven pulleys 10b and 11b, respectively.
11a is configured to be driven to rotate by gear motors 12a and 12b, respectively.

As shown in FIGS. 3 and 4, on both sides of the conveyor 6 in the conveying direction, there are provided timing belts 13 which are driven to rotate in synchronism with the conveyor belt 9 of the conveyor 6; 13 is a timing pulley 15 provided on a shaft 14 of the driven pulley 11b.
a and a timing pulley 15b provided on a shaft 13b in the middle of the transport conveyor 6.

As shown in FIGS. 3 and 4, the tip Wa of the band-shaped material W is clamped on the transport conveyor 6,
In addition, a clamp means 16 is provided which can move forward and backward in the horizontal direction on the forming drum 3. In the clamping means 16, a ball spline 19 is horizontally supported by a support plate 18 provided on a tip table 17, and a tip return cylinder 20 is attached to the support plate 18, and the tip return cylinder 20 is connected to the ball spline. A material clamping device 21 fixed to the tip of 19 is fixed.

This material clamping device 21 is shown in FIG.
(D), an L-shaped fixing plate 22 fixed to the tip return cylinder 20 and the ball spline 19, and a cylinder 23
And a movable plate 24 approaching and separating from the movable plate 24 via a movable plate 24. The distal end Wa of the conveyed belt-shaped material W is clamped or unclamped by the bottom surface of the fixed plate 22 and the upper surface of the movable plate 24 by the expansion and contraction operation of the cylinder 23. It is configured to be.

At the rear of the ball spline 19, a belt clamp device 25 for clamping the timing belt 13 is provided.
5 is provided with a slidable clamp cylinder 27 on an LM guide 26 disposed in the center of the conveyor 6 along the longitudinal direction, the clamp cylinder 27 having a vertically movable clamp plate 28, An L-shaped support plate 29 is provided opposite to the plate 28 and abuts on the rear portion of the ball spline 19.

Therefore, when the belt material W is conveyed to the forming drum 3 by clamping the front end Wa of the band material W by the clamping means 16, the belt clamp device 25 is rotated and driven in synchronization with the conveyor 6. Timing belt 1
When the clamp 3 is clamped, the belt clamp device 25 moves along the LM guide 26, and at the same time, moves the L-shaped support plate 29 while pushing the rear portion of the ball spline 19.

A second extension cylinder 30 is provided on the side of the tip table 17 of the clamping means 16. The second extension cylinder 30 places the tip Wa of the band-shaped material W on the forming drum 3. It is used when the clamp means 16 and the strip material W are further advanced after being positioned. In the vicinity of the forming drum 3, suction holding means 31 for holding the front end Wa of the band-shaped material W on the surface of the forming drum 3 is provided, as shown in FIGS. 3 and 5 (c).
As shown in (d), the suction holding means 31 includes a front-rear cylinder 32 and a lifting cylinder 33, and a mounting plate 34 provided at the tip of the lifting cylinder 33 has
A magnet 35 fixed to the front end Wa of the band-shaped material W is attached to the surface of the forming drum 3.

The suction holding means 31 is not limited to the front and rear cylinders 32, the lifting cylinder 33 and the magnet 35, and is formed inside the forming drum 3 on the surface of the forming drum 3 via a suction device (not shown). It is also possible to adopt a configuration in which the leading end of the band-shaped material W is sucked from the through hole (not shown). Next, an automatic winding method of the belt-shaped material W will be described with reference to FIGS.

First, the strip-shaped material W unwound from the take-up roll 2 shown in FIG. 1 is led out onto a transfer conveyor 5 located at the upper end of the servicer 1, and the front and rear ends thereof are cut on the transfer conveyor 5 by a cutting device 7. Cut to a predetermined length with a bias. The band-shaped material W cut to a fixed size on the transfer conveyor 5 of the servicer 1 in this manner is transferred onto the transfer conveyor 6 and clamped toward the forming drum 3 by the clamping means 16.
To the clamp position. Then, the drive of the conveyor 6 is stopped once, and the front end Wa of the strip-shaped material W is moved to the position shown in FIG.
As shown in (a), the material is clamped by the material clamping device 21 of the clamping means 16.

When the timing belt 13 is clamped by the belt clamp device 25 and the forming drum 3 is driven to rotate at a predetermined rotation speed and the conveyor 6 is driven in this state, the drum 3 rotates in synchronization with the conveyor 6. The driving timing belt 13 also rotates, whereby the belt clamping device 25 that clamps the timing belt 13 moves along the LM guide 26, and simultaneously moves the rear portion of the ball spline 19 with the L-shaped support plate 29. The belt-shaped material W, which is moved while being pressed, is clamped by the material clamping device 21 at the tip of the ball spline 19, and moves onto the forming drum 3 as shown in FIG.

At this time, since the internal pressure of the distal end return cylinder 20 is released, only the rod 20a extends while guiding the ball spline 19 and the distal end Wa of the band-shaped material W. Then, when the second extension cylinder 30 shown in FIG. 2 is extended from the state where the tip Wa of the band-shaped material W is positioned on the forming drum 3, the material clamp device 21 and the tip Wa of the band-shaped material W are Move to the front of the center of rotation.

In this state, the band-shaped material W clamped by the material clamping device 21 as shown in FIG.
When the gripping state of the front end Wa is released, the front end Wa of the strip-shaped material W comes into contact with the forming drum 3 which is driven to rotate by its own weight. The tip Wa of the belt-shaped material W is sucked and held. In the embodiment of the present invention, the front end Wa of the belt-shaped material W is fixed to the surface of the forming drum 3 via the magnet 35.

In this manner, the belt-shaped material W cut to the fixed size is automatically wound as shown in FIG. 5D together with the rotation of the forming drum 3, and after the winding of the belt-shaped material W is completed, the magnet W The work is completed when the worker removes 35. The winding operation as described above is sequentially performed on the band-shaped material W cut to a fixed size on the transfer conveyor 5 of the multi-stage servicer 1, and the transfer-conveyed belt 5 after the winding is completed. By performing the above setup, the winding operation can be performed efficiently.

As described above, the front end Wa of the strip-shaped material W previously cut to a fixed size on the servicer 1 is gripped by the clamp means 16, and the clamp means 16 is transported up to the axis of the forming drum 3. Forming drum 3
On top. Then, the gripping state of the band-shaped material W is released in a state in which the clamping means 16 and the band-shaped material W are further advanced while the molding drum 3 is driven to rotate in the winding direction, and the molding drum 3 is driven to rotate. When the front end Wa of the band-shaped material W comes into contact with its own weight, the suction holding means 3
1 and the front end Wa of the band-shaped material W on the surface of the forming drum 3
By automatically winding the band-shaped material W cut to a fixed size together with the rotational driving of the forming drum 3,
Inexpensive winding equipment can be obtained with simple equipment.

[0023]

As described above, the present invention can automatically wind a band-shaped material cut to a fixed length at a constant bias angle on the surface of a forming drum as described above. In addition, the winding can be performed automatically without manual operation, and there is an effect that an inexpensive winding device can be provided with simple equipment.

[Brief description of the drawings]

FIG. 1 is a front view of an entire apparatus for automatically winding a strip-shaped material embodying the present invention.

FIG. 2 is a plan view of FIG. 1 excluding a forming drum.

FIG. 3 is an enlarged front view of the tip side of the servicer.

FIG. 4 is a plan view of FIG. 3;

FIGS. 5A to 5D are explanatory views showing a step of winding a band-shaped material cut to a fixed size.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Servicer 2 Take-up roll 3 Forming drum 4 Frame 5 Transfer conveyor 6 Conveyor 7 Cutting device 8, 9 Conveyor belt 10a, 11a Drive pulley 10b, 11b Driven pulley 12a, 12b Gear motor 13 Timing belt 14 Shaft 15a, 15b Timing pulley 16 Clamping means 17 Tip table 18 Support plate 19 Ball spline 20 Tip return cylinder 21 Material clamp device 22 Fixed plate 23 Cylinder 24 Movable plate 25 Belt clamp device 26 LM guide 27 Clamp cylinder 28 Clamp plate 29 Support plate 30 Second extension cylinder 31 Suction Holding means 32 Front / rear cylinder 33 Elevating cylinder 34 Mounting plate 35 Magnet W Band material Wa Tip of band material

Claims (5)

[Claims] 1. A tip of a band-shaped material previously cut to a fixed size on a servicer is gripped by a clamp means, and the clamp means is transported to an axis of a forming drum, and the tip of the band-shaped material is positioned on the forming drum. In a state where the forming drum is driven to rotate in the winding direction, the gripping state of the band material is released in a state where the clamp means and the band material are further advanced, and the leading end of the band material is rotated on the forming drum that is driven to rotate. When the abutment is caused by its own weight, the tip of the band-shaped material is suction-held on the surface of the forming drum via the suction holding means, and the band-shaped material cut to a fixed size is automatically wound together with the rotation of the forming drum. Characteristic automatic winding method of strip material. 2. An automatic winding apparatus for a belt-shaped material for automatically supplying a band-shaped material cut in a predetermined size on a conveying conveyor of a servicer from a tangential direction on the molding drum and automatically winding the band-shaped material on the molding drum. A timing belt that is driven to rotate in synchronization with the conveyor is installed on at least one side of the conveyor in the conveyance direction, the tip of the band-shaped material is clamped on the conveyor, and the belt moves horizontally on the forming drum. A possible clamping means is provided, and the clamping means is provided with a belt clamp device capable of gripping or releasing the timing belt, and at the or near the forming drum, sucking and holding the tip of the band-shaped material on the surface of the forming drum An automatic winding device for a belt-shaped material, comprising a holding means. 3. The apparatus according to claim 2, wherein a second extension cylinder is provided on the belt clamp device. 4. The apparatus according to claim 2, wherein the suction holding means is a magnet detachable from a forming drum. 5. The belt-like material according to claim 2, wherein the suction holding means sucks the tip of the belt-like material from a through hole formed in the surface of the molding drum via a suction device provided inside the molding drum. Automatic winding device.