JP2018024149A - Transporting and attaching device for ply material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate the need of synchronizing transportation velocity with drum peripheral velocity and thereby suppress a cost increase required for the synchronization, while restricting attachment failure of ply materials.SOLUTION: A transport conveyor 2 for transporting a ply material G includes: a plurality of rotationally driven transport rollers 4; free bearing tables 5 arranged therebetween; and a plurality of positioning rollers 6 rising vertically on a straight line along a transport direction F. The transport rollers 4 are composed of magnet rollers and are arranged horizontally at intervals in the transport direction. The free bearing tables 5 are composed of a plurality of free ball bearings 5b, and include a receiving surface S for receiving the ply material G between the transport rollers 4. The positioning rollers 6 are composed of magnet rollers, and position one side surface of the ply material G by adsorbing it in a width direction.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an apparatus for conveying and sticking a vertically long ply material in which a metal cord is embedded in rubber.

  Generally, a belt ply of a pneumatic tire is formed by sticking a vertically long ply material in which a metal cord is embedded in rubber on a tire forming drum in the circumferential direction. Specifically, by cutting a long band-shaped material in which metal cords (belt cords) are inclined and arranged at an angle of, for example, 10 to 35 ° with respect to the length direction, the longitudinally long materials A ply material is formed.

  On the other hand, in order to convey such ply material to the drum, a belt conveyor is used, and at the time of application, the belt conveyor is operated so as to synchronize with the drum peripheral speed.

  However, it is difficult to completely match the conveyor speed of the belt conveyor with the drum peripheral speed. For example, when the drum peripheral speed is higher than the conveyor speed, the ply material is stretched. Conversely, if the drum peripheral speed is slower than the transport speed, the ply material will sag, and the ply material will not stick straight to the drum, or wrinkles will occur and production will occur. It causes loss and quality trouble. In addition, the design cost and equipment cost for the tuning control, and the correction cost for correcting the sticking failure are increased, resulting in an increase in cost.

  In addition, as a technique related to the conveying and sticking device for the ply material, there is Patent Document 1 below.

JP 2012-111078 A

  SUMMARY OF THE INVENTION An object of the present invention is to provide a ply material conveying and sticking device that does not require synchronization between a conveying speed and a drum peripheral speed, and can suppress an increase in cost for synchronization while suppressing poor bonding of a ply material. Yes.

The present invention comprises a conveyor for conveying a vertically long ply material in which a metal cord is embedded in rubber in the length direction thereof, and an affixing tool for pressing the conveyed ply material against a tire-forming drum and affixing it. A ply material conveying and pasting device,
The conveyor is
A plurality of transport rollers composed of magnet rollers that are arranged horizontally in the transport direction and spaced while being rotated and transported while adsorbing the ply material;
A free bear table portion that is arranged between the conveying rollers and forms a receiving surface for receiving the ply material between the conveying rollers, and the receiving surface is composed of a plurality of free ball bearings,
A plurality of positioning rollers comprising a rotatable magnet roller that is vertically aligned in a conveying direction and rises vertically and adsorbs one side surface of the ply material to be conveyed to position the ply material in the width direction. It is characterized by that.

  In the ply material conveying and sticking apparatus according to the present invention, it is preferable that the receiving surface is inclined at an angle θ with respect to a horizontal plane in a direction in which the positioning roller side is a low place.

  In the ply material conveying and sticking apparatus according to the present invention, the angle θ is preferably 10 ° or less.

  In the transporting and sticking device for ply material according to the present invention, the carry-in belt conveyor is arranged on the upstream side in the transport direction of the transport conveyor so as to be able to transit, and the transport roller is driven from the carry-in belt conveyor via the clutch means. It is preferred that

  In the transporting and sticking device for ply material according to the present invention, it is preferable that the transporting conveyor includes a position changing means that can position the positioning roller in the width direction.

  In the transport conveyor according to the present invention, most of the ply material is on the free bear table portion having low resistance during transport. Therefore, the ply material can be transported to the drum even when a transport roller (magnet roller) having a small transport force is used.

  Further, since the conveying force of the conveying conveyor is small and the resistance is small, the ply material can be dragged by the drum after the tip end portion of the ply material is attached to the drum and can slide on the conveying conveyor. That is, the ply material can be pulled out of the conveyor by following the drum. For this reason, it is possible to suppress the poor bonding of the ply material due to the mismatch between the drum peripheral speed and the conveyance speed. Furthermore, since it is not necessary to synchronize the conveyor with the drum peripheral speed, it is possible to suppress an increase in cost for the synchronization.

  In addition, since the receiving surface is composed of a plurality of free ball bearings, the ply material is easy to move in all directions, which causes a disadvantage that the moving direction of the ply material is unstable and fluctuates. However, in the present invention, a magnet roller is used as the positioning roller. Therefore, when the positioning roller comes into contact with one side surface of the ply material during conveyance, the positioning roller can adsorb the one side surface and continue the conveyance of the ply material while maintaining the adsorbed state. That is, the ply material can be transported while positioning in the width direction and suppressing wobbling.

(A) is a top view which shows conceptually a part of tire manufacturing line using the conveyance sticking apparatus of this invention, (B) is a top view which shows an example of the ply formed on the drum with the ply material. It is a top view which shows the conveyance sticking apparatus of FIG. It is a top view which expands and shows the principal part of a conveyance conveyor. It is sectional drawing which expands and shows the principal part of a conveyance conveyor. It is a side view which shows a clutch means schematically. (A) is sectional drawing which looked at the position change means from the upper part, (B) is sectional drawing which looked at the position change means from the conveyance direction downstream. It is a perspective view which shows a sticking tool.

  Hereinafter, embodiments of the present invention will be described in detail. FIG. 1 (A) is a plan view conceptually showing a part of a tire production line using the conveying and sticking apparatus 1 of the present invention. In this example, the ply material G is cut from the long belt-shaped material G0 and the ply material G is wound around the drum 100 for tire formation. Thereby, the case where the belt ply 101 (shown in FIG. 1B) of the tire is formed is shown.

  The code | symbol 102 in a figure is supply conveyors, such as a belt conveyor etc. which convey the elongate strip-shaped material G0 unwound from a roll intermittently to the cutting device 103, for example. The long belt-like material G0 has a metal cord (belt cord) embedded in rubber and arranged at an angle of, for example, 10 to 35 ° with respect to the length direction. The cutting device 103 cuts the long belt-like material G0 sent from the supply conveyor 102 at the same angle α as the angle with respect to the length direction, thereby forming the vertically long ply material G. . Reference numeral 104 denotes a carry-in belt conveyor for placing and holding the cut ply material G. Reference numeral 1 denotes a transport sticking apparatus according to the present invention, which receives the ply material G from the carry-in belt conveyor 104 and then sticks it on the drum 100 in the circumferential direction to form the belt ply 101.

  As shown in FIG. 2, the conveying and sticking apparatus 1 of the present embodiment presses the conveyed ply material G against the drum 100 (shown in FIG. 1) and the conveying conveyor 2 that conveys the ply material G in its length direction. And a pasting tool 3 to be pasted.

  The transport conveyor 2 includes a plurality of (four in this example) transport rollers 4 disposed horizontally in the transport direction F, and a free bear table section 5 disposed between the transport rollers 4 and 4. And a plurality of (four in this example) positioning rollers 6 standing vertically.

  Each conveyance roller 4 is a magnet roller, and is rotatably spanned between the side plates 2E and 2E of the conveyance conveyor 2, for example, as shown in FIG. The transport roller 4 can be transported while adsorbing the ply material G by being driven to rotate. The metal cord in the ply material G is formed of a magnetic material that can be attracted by a magnet, such as iron or nickel.

  A chain wheel 7 such as a sprocket is attached to one end of each conveyance roller 4, and the conveyance rollers 4 adjacent in the conveyance direction F are connected to an endless string 8 such as a chain that circulates between the chain wheels 7 and 7. Are sequentially connected. Of the transport rollers 4, the transport roller 4 a disposed on the most upstream side in the transport direction F is driven by the carry-in belt conveyor 104 via the clutch means 10.

The carry-in belt conveyor 104 is a so-called belt conveyor in which a belt 104b is wound between a pair of rollers 104a (only the downstream roller 104a is shown in FIG. 3 ) arranged at both ends in the conveyance direction. It is arranged so as to be able to connect to the conveyor 2. A drive motor (not shown) is connected to one of the pair of rollers 104a.

  As shown in FIGS. 3 and 5, gears 11 and 12 are attached to the respective ends of the downstream roller 104 a of the pair of rollers 104 a and the uppermost transport roller 4 a in the transport conveyor 2, The gears 11 and 12 are connected via the clutch means 10. In this example, the clutch means 10 includes a tiltable link 10a whose one end is pivotally supported by a fulcrum P, a connecting gear 10b pivotally supported by the other end of the link 10a, and a cylinder 10c for tilting the link. With. The connecting gear 10b can connect the gears 11 and 12 by extension of the cylinder 10c, and can transmit the drive of the carry-in belt conveyor 104 to the transport conveyor 2. Conversely, the drive of the carry-in belt conveyor 104 is cut off due to the shortening of the cylinder 10c.

  As shown in FIGS. 3 and 4, the free bear table portion 5 forms a receiving surface S that receives the ply material G between the transport rollers 4 and 4. The receiving surface S is formed by, for example, a plurality of free ball bearings 5b laid on the table base 5a, and the ply material G is placed so as to be movable in a free direction with a small resistance. The receiving surface S is defined as a surface connecting the upper ends of the free ball bearings 5b.

  As shown in FIG. 2, the positioning rollers 6 are arranged side by side on a straight line extending in the transport direction F when viewed from above. The positioning roller 6 is composed of a magnet roller like the transport roller 4 and is rotatably supported to guide one side Gs of the transported ply material G along the straight line while adsorbing. sell. Thereby, disadvantages such as destabilization of the moving direction of the ply material G caused by the receiving surface S consisting of a plurality of free ball bearings 5b can be overcome, and while positioning the ply material G in the width direction, Moreover, it can be conveyed while suppressing wobbling. The positioning roller 6 is disposed only on one side in the width direction.

  In this example, as shown in FIG. 6B, the receiving surface S is positioned with respect to the horizontal surface so that the one side Gs of the ply material G to be conveyed is reliably adsorbed to the positioning roller 6. Inclined at an angle θ in a direction in which the 6 side is a low place. Thereby, during conveyance, the ply material G slides down to the positioning roller 6 side along the inclination, and the one side surface Gs can be reliably adsorbed to the positioning roller 6.

  The angle θ is preferably 10 ° or less. If the angle θ exceeds 10 °, the one side Gs strongly hits the positioning roller 6 and the one side Gs tends to be deformed. The lower limit value of the angle θ is preferably 1 ° or more, and more preferably 2 ° or more.

  In this example, the position change means 15 which can position the positioning roller 6 in the width direction is provided. As shown in FIGS. 6A and 6B, the position changing means 15 of this example includes a roller holder 16 that pivotally supports the positioning roller 6 and a moving means 17 that moves the roller holder 16 in the width direction. With. The moving means 17 of this example includes, for example, a rail 17a disposed on the bottom 2B of the conveyor 2 and extending in the width direction, and a screw shaft 17b parallel to the rail 17a. The roller holder 16 is provided with a bearing portion (not shown) guided by the rail 17a and a nut portion 17c that is screwed onto the screw shaft 17b. In this example, a handle (not shown) is detachably disposed at one end of the screw shaft 17b, and the screw shaft 17b is rotated by operating the handle. Thereby, the positioning roller 6 can be displaced in the width direction, and can correspond to various ply materials G having different width dimensions. It is preferable that the roller holders 16 are connected to each other, and the positioning rollers 6 are simultaneously displaced in the width direction by one handle operation.

  As shown in FIG. 1, the affixing tool 3 presses and affixes the ply material G conveyed by the conveying conveyor 2 to the drum 100. As shown in FIG. 7, the attaching tool 3 of this example includes a cylinder 32 with a built-in guide supported by a portal frame 31 straddling between the side plates 2 </ b> E and 2 </ b> E, and a lower end of the rod of the cylinder 32 via a holder 33. And a pressing roller 34 pivotally supported. The ply material G can be pressed against the drum 100 by the extension of the cylinder 32.

  As mentioned above, although especially preferable embodiment of this invention was explained in full detail, this invention is not limited to embodiment of illustration, It can deform | transform and implement in a various aspect.

DESCRIPTION OF SYMBOLS 1 Conveying sticking apparatus 2 Conveying conveyor 3 Pasting tool 4 Feeding roller 5 Free bear table part 5b Free ball bearing 6 Positioning roller 10 Clutch means 15 Position changing means 100 Drum 104 Loading belt conveyor F Conveying direction G Ply material Gs One side S Receiving surface

Claims (5)

A ply material comprising a conveying conveyor for conveying a longitudinal ply material in which a metal cord is embedded in rubber in the length direction thereof, and an affixing tool for pressing the conveyed ply material against a tire-forming drum and attaching it. A transfer sticking device,
The conveyor is
A plurality of transport rollers composed of magnet rollers that are arranged horizontally in the transport direction and spaced while being rotated and transported while adsorbing the ply material;
A free bear table portion that is arranged between the conveying rollers and forms a receiving surface for receiving the ply material between the conveying rollers, and the receiving surface is composed of a plurality of free ball bearings,
A plurality of positioning rollers comprising a rotatable magnet roller that is vertically aligned in a conveying direction and rises vertically and adsorbs one side surface of the ply material to be conveyed to position the ply material in the width direction. A ply material conveying and sticking device characterized by that.   2. The ply material conveying and sticking apparatus according to claim 1, wherein the receiving surface is inclined at an angle [theta] with respect to a horizontal plane in a direction in which the positioning roller side is at a low position.   The ply material conveying and sticking apparatus according to claim 2, wherein the angle θ is 10 ° or less.   The carry-in belt conveyor is arranged on the upstream side in the carrying direction of the carry conveyor so as to be able to transit, and the carry roller is driven from the carry-in belt conveyor via a clutch means. The ply material conveying and sticking apparatus according to any one of the above.   The transporting and sticking device for ply material according to any one of claims 1 to 4, wherein the transporting conveyor includes a position changing means capable of shifting the positioning roller in the width direction.

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