JP2011121301A - Conveyor of tire constituent members - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a conveyor of tire constituent members, which upgrades tire performance by eliminating an opening in the joint part of a cut-to-size breaker on a molding drum and affixes the breaker to a tire highly precisely after conveying and winding the breaker. <P>SOLUTION: This conveyor of tire constituent members is used for a tire molding machine which cuts the breaker fed by a material feeder to the specified size and feeds the cut-to-size breaker to the molding drum for affixing/molding the breaker to the tire. In addition, the conveyor comprises (1) a carrying conveyor which carries the breaker and the cut-to-size breaker to the molding drum, (2) a cutting means which is installed halfway through the carrying conveyor and cuts the breaker to the specified size, (3) a bend correction means which corrects the bend at the cut end part of the breaker, (4) the carrying conveyor, and (5) a control means which controls the cutting means and the bend correction means. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a tire component transporting device used in a tire molding servicer that cuts a breaker (band-like rubber member), which is a tire component, into a predetermined dimension and supplies a fixed dimension breaker to a tire molding drum.

  The tire molding servicer includes a tire component conveying device for feeding a breaker to a tire molding drum, and a plurality of material feeders that supply the breaker to the tire component conveying device (Patent Literature). 1).

  FIG. 6 is a plan view showing a conventional tire component transporting device. As shown in FIG. 6, the conventional tire component transporter sends a breaker A fed from a material feeder onto a transport conveyor 601. Cut to a predetermined size on the anvil C located in the conveyor 601, sequentially feed the sizing breaker A1 to the forming drum B and wind it on the forming drum B, and cut ends A2 of the sizing breaker A1 together To form an annular tread ring. In addition, in order to increase the bonding strength at the joint portion A3, the cutting edge portion A2 of the sword breaker A1 having a sword tip shape is formed in a sword tip shape with a cutting edge inclined to one side.

  However, the cutting edge A2 of the sword breaker A1 is bent to one side of the conveyor 601 due to the cutting force when the breaker A is cut and the frictional resistance when the sizing breaker A1 is subsequently conveyed. The joint part A3 has a problem in that a gap between the sword-shaped cut ends A2 of the fixed-size breaker A1 is opened and defective products are generated.

  Therefore, conventionally, the guide roller groups 602 are arranged on both sides of the transport direction of the transport conveyor 601, and the breaker A is centered.

  However, even if the width of the breaker A is changed, the centering width (interval between the roller groups on both sides) is constant, and therefore when the width of the breaker A matches the centering width as shown in FIG. Although the problem does not occur, as shown in FIG. 7B, when the width of the breaker A is narrower than the centering width, the breaker A is meandered and conveyed, and the problem is not solved. When the width of the breaker A is wider than the centering width as shown in FIG. 7C, there is a problem that both sides of the breaker A are stretched by being pressed from the roller group 602.

JP-A-6-226880

  In view of solving the above-mentioned problems, the present invention can improve tire performance by eliminating the opening of the joint portion of the fixed-size breaker on the forming drum and transporting, winding and sticking the breaker with high accuracy. It is an object of the present invention to provide a conveying device for tire constituent members.

The transport device for a tire constituent member of the present invention,
A transport device for a tire constituent member used in a tire molding machine that cuts a breaker fed from a material supply machine into a predetermined size, sends a fixed size breaker to a molding drum, and paste-molds,
A transport conveyor for transporting the breaker and the fixed-size breaker to the forming drum;
Cutting means installed in the middle of the conveyor to cut the breaker into a predetermined size;
Bend correcting means for correcting the bend at the cut end of the breaker;
Control means for controlling the conveying conveyor, the cutting means, and the bending correcting means are provided.

In addition, the conveying device for the tire constituent member,
The bend correcting means is
Detecting means for the breaker;
A push-back mechanism that moves a locking body that locks the edge of the cutting end of the breaker from the outside in the width direction of the conveyor,
Of the portion corresponding to the predetermined cut position of the breaker, the edge position in the conveyance width direction is detected by the detection means,
The cutting end of the breaker is pushed back by the locking body based on the detected position information so that the edge of the cutting end of the breaker comes to the edge position.

  According to the present invention, it is possible to improve tire performance by eliminating the opening of the joint portion of the fixed-size breaker on the molding drum and transporting, winding, and pasting the breaker with high accuracy.

It is a perspective view which shows one Embodiment of the conveying apparatus of the tire structural member which concerns on this invention. It is a top view which shows one Embodiment of the conveying apparatus of the tire structural member which concerns on this invention. It is a perspective view which shows one Embodiment of the curvature correction means of the tire material conveying apparatus which concerns on this invention. It is a front view which shows one Embodiment of the curvature correction means of the tire material conveying apparatus which concerns on this invention. It is a top view which shows operation | movement of one Embodiment of the conveying apparatus of the tire structural member which concerns on this invention. It is a top view which shows the conveying apparatus of the conventional tire structural member. It is a top view which shows an outline | summary of the conveying apparatus of the other conventional tire structural member.

  Hereinafter, the present invention will be described based on the embodiments. Note that the present invention is not limited to the following embodiments. Various modifications can be made to the following embodiments within the same and equivalent scope as the present invention.

1. Configuration of Tire Conveying Device FIG. 1 and FIG. 2 are a perspective view and a plan view of a tire constituent member conveying device according to the present invention. As shown in FIG. 1 and FIG. 2, the tire component conveying apparatus cuts the breaker A fed from a material supply machine (not shown) into a predetermined length to form a fixed-size breaker A1 (see FIG. 6) as a forming drum. This is an apparatus for supplying to B, and includes a conveyor 1, cutting means 2, bending correction means 3, and control means (not shown) for automatically controlling the entire apparatus by program control.

(1) Conveyor Conveyor 1 is an apparatus that conveys breaker A and fixed-size breaker A1 to molding drum B, and is configured by arranging a pair of left and right divided conveyors 1a positioned on both sides in the conveying direction in the conveying direction. Yes. Each divided conveyor 1a includes a driving pulley 1c and a driven pulley 1d connected to the servo motor 1b, and an endless belt 1e wound around these pulleys 1c and 1d.

(2) Cutting means The cutting means 2 is arranged at the cutting position of the breaker A in the middle of the conveyor 1. The cutting means 2 includes a blade body (not shown), and when the blade body moves obliquely from one side to the other side of the breaker A, the breaker A is cut into a predetermined size and the cutting end A2 ( 5) is formed in the shape of a sword with a cutting edge inclined to one side.

  An anvil 2b having a blade groove 2a for running the blade is disposed in the moving range of the blade. Although not shown in the drawings, the moving mechanism of the blade body includes a drive pulley and a driven pulley of a servo motor, and the blade body is attached to an endless belt wound between these pulleys via a bracket. The blade is reciprocated.

(3) Bending Correction Unit FIGS. 3 and 4 are diagrams showing the bending correction unit. As shown in FIGS. 3 and 4, the bending correcting means 3 is a device that corrects the bending of the sword-shaped cutting end A <b> 2 (see FIG. 5) of the breaker A and returns the breaker A to the centering position. The bending correction means 3 includes a laser sensor 3a that is a detection means and a push-back mechanism 3b. The push-back mechanism 3 b has a locking body 3 c and moves the locking body 3 c in the width direction of the transport conveyor 1. The locking body 3c is configured by supporting the guide roller group 3d with the support body 3e, and the total length L of the guide roller group 3d is set to a length (for example, about 50 mm) that contacts only the tip of the breaker A. Yes.

  Further, the bending correcting means 3 includes a mechanism portion 3h and a servo motor 3f for moving the locking body 3c via the mechanism portion 3h. The mechanism 3h includes a support frame 3i, a pair of guide rails 3j to which the support frame 3i is fixed, and a movable support 3k that reciprocates along the guide rails 3j. A bearing 3m is fixed to the support frame 3i, and the bearing 3m supports a ball screw 3n. The ball screw 3n is connected to the servomotor 3f, and a screw nut 3p that is screw-engaged with the ball screw 3n is fixed to the moving support 3k. A laser sensor 3a is attached to an attachment frame 3r extending from the support frame 3i to the upstream side of conveyance. The support frame 3i is fixed to a support base (not shown) located on the side of the transport conveyor 1.

  The moving support 3k reciprocates horizontally in the width direction of the conveyor 1 by the forward and reverse rotation of the ball screw 3n by the servo motor 3f. Thereby, when the edge position of the breaker A is detected by the laser sensor 3a, the laser sensor 3a can be advanced into the transport conveyor 1.

  During the correction operation, the guide roller group 3d is advanced into the conveyor 1 and pressed against the edge of the breaker A to push the breaker A back to the centering position, while the guide roller group 3d is moved outside the conveyor 1 during the standby operation. Can be evacuated. This evacuation is performed after detection of the edge position of the breaker A.

  Further, the bending correction means 3 includes a rotary encoder 3s for confirmation. The rotary encoder 3s is for confirming that the guide roller group 3d has moved to the edge position in the width direction of the conveyor 1 at the planned cutting position of the breaker A from the rotational speed of the drive shaft 3v of the servo motor 3f. The rotary disk 3t of the rotary encoder 3s is used in conjunction with the drive shaft 3v of the servo motor 3f by the transmission belt 3u.

(4) Control means The control means includes storage means. This storage means stores the position information in the conveyance width direction of the edge of the breaker A detected by the laser sensor 3a when the breaker A before cutting (the breaker A before cutting is at the centering position) stops for cutting. To do.

2. Description of Operation of Conveying Device for Tire Components (1) Carrying in from Material Feeder First, the breaker A wound in a roll shape is fed out to the material feeding machine and carried into the conveyor 1.

(2) Stop of conveyance When the planned cutting position of the breaker A reaches the cutting means 2, the conveyance of the breaker A is stopped.

(3) Detection of edge position The edge position in the conveyance width direction of the planned cutting position of the breaker A is detected by the laser sensor 3a, and the detected position information is stored in the storage unit of the control means.

  After detecting the edge position of the breaker A, the guide roller group 3d is temporarily retracted to the outside of the transport conveyor 1. The reason for this is to prevent the protruding end A4 (see FIG. 5) of the sword-shaped cutting end A2 bent by the breaker A from colliding with the guide roller group 3d.

(4) Cutting breaker A
After the edge position of the breaker A is detected, the cutting section of the breaker A is cut by the cutting means 2.

(5) Resuming and Stopping Transfer of Breaker A Next, the breaker A on which the sword-shaped cutting end A2 is formed is transported toward the forming drum B, and the sword-shaped cutting end A2 passes through the anvil 2b. For example, the control means 21 temporarily stops the conveyor 1 from the current value of the servo motor 1b.

(6) Correction of bending The servo motor 3f of the bending correction means 3 is driven to correct the bending of the sword-shaped cutting end A2 of the breaker A. That is, based on the position information of the edge of the breaker A by the laser sensor 3a, the breaker until the edge in the conveyance width direction of the cutting end A2 of the breaker A reaches a predetermined edge position, that is, until the breaker A reaches the centering position. The cut end A2 of A is pushed back to correct the bending. Further, the moving distance to the edge position of the guide roller group 3d is confirmed by the rotary encoder 3s. In addition, after correcting the curvature of the cutting edge A2 of the sword tip of the breaker A, the guide roller group 3d is retracted to the standby position.

(7) Winding around the forming drum B After a predetermined time has elapsed, the conveyance of the breaker A whose bend is corrected is resumed, and after the fixed-size cutting, the fixed-size breaker A1 is wound around the forming drum B and formed.

3. Advantages of the present embodiment (1) According to the present embodiment, the curvature of the cutting edge A2 of the sword tip of the breaker A is corrected and the breaker A is returned to the centering position, whereby the constant on the forming drum B is determined. The opening of the joint part A3 of the short breaker A1 can be prevented.

(2) The laser sensor 3a detects the edge position in the width direction of the transfer conveyor 1 at the planned cutting position of the breaker A, and based on the detected position information, the guide roller group 3d uses the blade tip-shaped cutting edge of the fixed-size breaker A1. Since the edge of the portion A2 is moved to the edge position in the width direction of the conveyance conveyor 1 at the planned cutting location, regardless of the positional deviation in the width direction of the conveyance conveyor 1 of the sword-shaped cutting end A2 of the breaker A The breaker A can be accurately pushed back to the centering position.

(3) Moreover, regardless of the width dimension of the breaker A, the breaker A can be accurately pushed back to the centering position.

(4) Since the bending correcting means 3 is disposed only on the side where the sword-shaped cutting end A2 of the breaker A is bent, it is possible to prevent the breaker A from being sandwiched and extended by the guide roller group 3d.

  In addition, the breaker A bends to the side where the projecting end portion A4 is present in the sword-shaped cut end portion A2. This is because the ground contact area is larger on the left and right sides of the sword-shaped cutting end A2 on the side where the protruding end A4 is present than on the side where the protruding end A4 is not present. This is because the sword-shaped cutting end A2 bends toward the side where the protruding end A4 of the sword-shaped cutting end A2 is present.

(5) The guide roller group 3d is a case where the guide roller group 3d guides the breaker A after the correction by arranging the tangent direction of each guide roller along the conveyance direction of the breaker A. However, since the guide roller rotates and can guide the breaker A, the edge of the breaker A can be prevented from being rubbed and damaged by the guide roller group 3d.

(6) The configuration of the apparatus is simple, and the manufacturing cost can be reduced and the maintenance can be facilitated.

DESCRIPTION OF SYMBOLS 1 Conveyor 1a Dividing conveyor 1b Servo motor 1c Drive pulley 1d Driven pulley 1e Endless belt 2 Cutting means 2a Blade groove 2b Anvil 3 Bending correction means 3a Laser sensor 3b Push-back mechanism 3c Locking body 3d Guide roller group 3e Support body 3f Servo motor 3h Mechanism 3i Support frame 3j Guide rail 3k Moving support 3m Bearing 3n Ball screw 3p Screw nut 3r Moving support 3s Rotary encoder 3t Rotary disk 3u Transmission belt 3v Drive shaft 601 Conveyor 602 Roller group A Breaker A1 Fixed size Breaker A2 Cut end A3 Joint A4 Projection end B Forming drum C Anvil L Total length of guide rollers

Claims (2)

A transport device for a tire constituent member used in a tire molding machine that cuts a breaker fed from a material supply machine into a predetermined size, sends a fixed size breaker to a molding drum, and paste-molds,
A transport conveyor for transporting the breaker and the fixed-size breaker to the forming drum;
Cutting means installed in the middle of the conveyor to cut the breaker into a predetermined size;
Bend correcting means for correcting the bend at the cut end of the breaker;
A conveying device for a tire constituent member, comprising: a conveying means, a control means for controlling the cutting means and the bending correcting means. The bend correcting means is
Detecting means for the breaker;
A push-back mechanism that moves a locking body that locks the edge of the cutting end of the breaker from the outside in the width direction of the conveyor,
Of the portion corresponding to the predetermined cut position of the breaker, the edge position in the conveyance width direction is detected by the detection means,
The cutting end portion of the breaker is pushed back by the locking body based on the detected position information so that the edge of the cutting end portion of the breaker comes to the edge position. 2. The tire component conveying apparatus according to 1.

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