CN1951680A - Belt reinforcement strip supply apparatus of green tire - Google Patents

Abstract

The present invention provides a raw tire belt reinforcing tape supply device, wherein a belt reinforcing tape (2) wound on a coiler (1) passes through a plurality of guide rollers (3a, 3b , 3c) and the clamping part (4), and are supplied to the applicator (6) through the ring part (5), and attached to the belt layer reinforcement material of the belt layer forming drum (7), in the first guide Between the roller (3a) and the clamping part (4), a detection sensor (8) and a roll-out roller (9) are provided, and the annular part includes upper and lower rollers (10a, 10b), roller group (11) , a guide rail (12), and a position detection sensor (13), the head of the applicator includes: a clamping part, a tension maintaining part and a cutting part. Thereby, unwinding of the belt reinforcement material, maintenance of appropriate tension, winding and cutting operations are simplified, and the durability of the equipment can be improved.

Description

Supplying device for raw tire belt reinforcement tape

technical field

The present invention relates to a device for supplying a belt-shaped belt reinforcing material as a semi-finished product constituting a green tire or a non-vulcanized tire to a belt forming drum, and particularly relates to a device capable of unwinding the belt reinforcing material and maintaining an appropriate tension , The winding and cutting operations are simple, and the durability of the equipment is improved, and the improved raw tire belt layer reinforcement tape supply device is provided.

Background technique

Usually, the belt layer in the tire component is arranged between the tread and the carcass to reduce the impact on the road surface and strengthen the tire strength. In order to strengthen this belt layer, a belt-shaped belt layer is used. Reinforcement material in the form of rubber attached to textile cords.

In the prior art, many supply devices of a belt-shaped belt reinforcing material for reinforcing a belt have been proposed. Among them, as an example, there are devices shown in FIGS. 6 to 8 . Here, when the belt reinforcing tape 102 is wound to the belt forming drum 107 by the applicator 106, the belt reinforcing tape 102 supplied from the coiler 101 passes through each roller 103, and passes through the applicator 106. The clamping device 104 and the guide roller, and then through the pick-up device 141 and the last guide roller, so that the material is wound on the belt forming drum 107 .

Wherein, the belt reinforcing strip 102 is fixed by a plurality of needles 143 in the cutting part 142 of the applicator 106 and awaits processing. The head 114 has a splicing roller 144 that splices the belt reinforcing strip 102 . The head 114 is advanced by a cylinder 145 provided with guiding means. Thereafter, while keeping the cylinder 147 of the cutter 146 having the cutting portion 142 stopped, only the strip extrusion cylinder 148 is lowered to extrude the belt reinforcing strip 102 at a predetermined position. At this time, a plurality of needles 143 and cutters 146 are kept at the waiting position, whereby the belt reinforcing tape 102 leaves these needles 143, and the belt reinforcing tape 102 will be attached to the belt of the belt forming drum 107. The beam layer is reinforced on top of the material.

Then, the squeeze roller 149 is lowered by the air cylinder 150, and if the belt forming drum 107 rotates by a certain amount, the belt reinforcing strip 102 is pressed against the belt reinforcing material on the belt forming drum 107 with a certain pressure. superior.

At this time, when the cylinder 145 is in the forward state, the belt reinforcing strip is wound on the belt reinforcing material according to the set transfer pitch and moving distance, and the belt is cut off when the winding is completed. Layer reinforcement tape 102 .

When the belt forming drum 107 is stopped, the pick-up device 141 with a plurality of needles 143 and the head 114 with the splicing rollers 144 are advanced by the cylinder 145 and the cylinder 147 of the knife 146 is lowered by which the belt is reinforced The strip 102 is cut. After the cutting is completed, the pick-up device 141 and the cutter 146 are raised simultaneously, but the needles of the pick-up device 141 are in a state of clamping the belt reinforcing tape 102 .

However, since more than 1,000 green tires are usually produced per day in field operations, durability of the needles for picking up the belt reinforcing tape like the prior art green tire belt reinforcing tape supply device may be problematic. problems, which can have a negative impact on equipment availability.

In addition, since the cutter for cutting the belt reinforcing strip is lowered by the cylinder and cut by extrusion, when cutting the belt reinforcing strip made of textile and rubber for a long time, not only the The life of the cutter is limited and some bending occurs at the front and rear ends where the belt reinforcing strip is cut. When attaching the start end and the end of the belt reinforcing tape, there was a problem that the degree of adhesion was frequently poor.

Contents of the invention

The present invention has been made in view of the above problems, and an object of the present invention is to provide a raw tire belt-reinforcing tape supply device capable of improving the durability of equipment and improving the degree of cutting of the belt-reinforcing tape.

In order to achieve the above objects, in the raw tire belt reinforcing tape supply device of the present invention, the belt reinforcing tape wound on the coiler passes through a plurality of guide rollers and a clamping portion and passes through an annular portion. It is supplied to the applicator and attached to the belt reinforcement material of the belt forming drum, wherein, between the first guide roller and the clamping part, there is a device for detecting the presence or absence of the belt reinforcement tape. The detection sensor, and the unwinding drum that successively unwinds the belt reinforcement strip wound on the coiler. The annular portion includes upper and lower rollers; a roller set including the lower roller; a guide rail guiding the roller set to move up and down; and a position detection sensor detecting the position of the roller set. The applicator includes a head and a driving part, the head includes: a clamping part, which squeezes and fixes the supplied belt reinforcement tape; a tension maintaining part, which is used to improve the cutting of the belt reinforcement tape Force; cutting part, to cut off the belt reinforcement tape.

According to the supply device of the raw tire belt reinforcing tape of the present invention, in order to supply the belt reinforcing tape constituting the green tire to the belt forming drum, the tape is wound from an endless loop of a certain shape. The body unwinds the web, passing the web through the annulus to maintain the desired tension and stably maintain the desired speed of the web for feeding to the applicator. The strip is then fed into the applicator. The applicator makes the tape provided according to the style of the raw tire to be manufactured and according to the pre-set position, transfer pitch and transfer distance close to the belt layer forming drum for initial attachment, and according to the controlled setting Winding is performed at a predetermined transfer pitch and transfer distance, and when the winding is completed, the cutting of the tape and the attachment of the end of the tape are completed. Afterwards, the applicator returns to the waiting position. Its attachment method, winding mechanism and cutting method are simple, and have the advantages of improving tire durability and achieving optimization.

Description of drawings

Fig. 1 is the overall structural diagram of the device of the present invention that will provide belt reinforcement strip material to the belt forming drum;

Fig. 2 and Fig. 3 are respectively the front view and the side view of the belt layer forming drum and the applicator of Fig. 1;

Fig. 4 and Fig. 5 are the enlarged front view and side view of the applicator shown in Fig. 2 and Fig. 3;

6 to 8 are schematic diagrams of a conventional device for supplying a belt reinforcing tape to a belt forming drum.

Detailed ways

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Fig. 1 is an overall structural view of a belt-reinforcing tape supply device for a green tire according to the present invention, and Figs. 2 and 3 are a front view and a side view of the applicator shown in Fig. 1, respectively.

As shown in the figure, the present invention relates to a belt reinforcing tape supply device for a green tire. A belt reinforcing tape 2 wound on a coiler 1 passes through a plurality of guide rollers 3a, 3b, 3c and nip The tight part 4 is supplied to the applicator 6 through the annular part 5 and attached to the belt reinforcing material of the belt forming drum 7 . Wherein, between the first guide roller 3a and the clamping part 4, a detection sensor 8 is provided to detect whether there is a belt reinforcing strip material 2, and the belt layer wound on the coiler 1 is successively released. Reinforces the unwinding drum 9 of the strip 2. The annular part 5 includes: upper and lower rollers 10a, 10b; a roller set 11 including the lower roller 10b; a guide rail 12 for guiding the roller set 11 to move up and down; and a position detection sensor 13 for detecting the position of the roller set 11. The head 14 of the applicator 6 includes: a clamping part 16, which squeezes and fixes the supplied belt reinforcement tape 2; a tension holding part 17, which is used to increase the cutting force of the belt reinforcement tape 2; The cutting section 18 cuts the belt reinforcing tape 2 .

More specifically, the belt reinforcing strip 2 wound in the coiler 1 is reeled out by a well-known rotating device and a take-off drum 9 .

In order to prevent twisting or overlapping from occurring due to excessive rotation of the inertial belt reinforcement strip 2 when the coiler 1 rotates, a certain line cannot be formed, and a known braking device is provided.

In addition, the belt reinforcing strip 2 unwound from the coiler 1 will pass through material guide rollers 3 a , 3 b , 3 c and a detection sensor 8 . At this time, the first guide roller 3a prevents the belt reinforcement tape 2 from moving left and right, and the detection sensor 8 detects whether there is a belt reinforcement tape 2 that is unwound. If the detection sensor 8 detects the belt reinforcement strip 2 that has not been rolled out, then the belt reinforcement strip 2 is clamped by the clamping portion 4, while operating according to the existing programmed sequence, To stop the operation of all the action parts of supplying or unwinding the belt reinforcing strip 2.

Therefore, it is possible to carry out the following operations, that is, when there is no belt layer reinforcing strip 2 as a material on the coiler 1, a new coiler that has been completely wound can be replaced, or the front part of the unwinding section can be installed When the joint portion of the belt reinforcing tape 2 is cut or an abnormal material is unwound, the cut portion can be reconnected and replaced.

In the loop portion 5, a certain tension of the belt reinforcing strip 2 supplied from the coiler 1 is maintained and absorbed. That is, the tension of the belt reinforcing strip 2 is determined by the weight of the roller group 11 at the lower end and the number of the lower rollers 10b.

In addition, the roller set 11 rises along the guide rail 12 as the belt reinforcement strip 2 is wound up. When leaving a certain position, the unwinding drum 9 rotates through a known programmed sequence. The position of the roller set 11 Determined by the position sensor 13.

On the other hand, in FIGS. 2 and 3 , there is shown the driving means of the belt forming drum 7 , that is, the belt forming drum 7 is rotated using power transmission means such as a belt rotated by a motor 19 .

An applicator 6 for affixing the belt reinforcing tape 2 supplied from the coiler 1 to the belt forming drum 7 is shown enlarged in FIGS. 4 and 5 . First, the head 14 of the applicator 6 is moved to the starting position of the belt reinforcing strip 2 . At this time, when the conveyor belt 20 and the pulley 21 are rotated by the auxiliary motor driving part 15 not shown in the figure, the body 23 having the head 14 moves in the direction of the arrow by the rotation of the screw 22, and moves to the belt belt. Layer reinforcement tape 2 start position.

In addition, the height of the head 14 can be automatically adjusted, that is, when the diameter or circumference of the belt forming drum 7 of the specification to be produced is input into a known application program, the auxiliary motor 24 operates, and its power is passed through The pulley 25, the synchronous conveyor belt 26 and the driven pulley 27 rotate the screw rod 28, and the carcass 29 is moved by the height of the head 14 by the rotational force, thereby enabling the carcass 29 to move to a position of a desired height.

Next, when the head 14 of the applicator 6 is located at the starting point of the belt reinforcing strip 2 , the transfer table 30 advances along the guide rail 32 by the operation of the cylinder 31 .

At this time, the front end of the belt reinforcing strip 2 is located on the belt forming drum 7 and below the splicing roller 33 used to strengthen the initial attachment.

The splicing roller 33 presses the beginning part of the belt reinforcing strip 2 by the lowering of another cylinder 34, thereby to the belt reinforcing strip 2 and the belt reinforcing material located on the belt forming drum 7. Adhesion is strengthened.

Next, when the cylinder 34 is lowered, the clamping part 16 that clamps the belt reinforcement strip 2 is lifted by the cylinder 35, and the belt that is pressed against the fixing plate 36 and the clamping link 37 is finished. Preparation for winding the reinforcement tape 2 onto the belt reinforcement material of the belt forming drum 7 .

Then, while the belt forming drum 7 is rotated by a certain amount and the splicing roller 33 is raised, the belt forming drum 7 is continuously rotated. The head 14 of the applicator 6 automatically calculates the transfer speed and take-up pitch according to the existing programmed sequence pattern and the rotation amount of the belt forming drum 7, and directs the belt reinforcement strip 2 toward and starts The opposite direction of the position is wound on the belt reinforcing material of the belt forming drum 7 .

As described above, the winding of the belt reinforcing tape 2 on the belt forming drum 7 ends, and the rotation of the belt forming drum 7 and the transfer of the head 14 of the applicator 6 are stopped.

Next, the transfer table 30 moves backward by the operation of the air cylinder 31 , and the belt reinforcing strip 2 is fixed by the clamping portion 16 .

Then, before the cutter is operated, the tension holding unit 17 operates to hold the tension of the belt reinforcing tape 2 for cutting. The roller 39 of the tension holding unit 17 is provided at the front end of the link 38 , and the roller 39 moves forward by the air cylinder 40 and rises by a certain amount as the link 38 rotates.

After the belt reinforcing strip 2 is cut by the cutting part 18 , the roller 39 of the tension holding part 17 returns to the waiting position in the reverse order of the cylinder 40 and the link 38 .

Next, cutting is performed by the cutting part 18 , that is, the air cylinder 42 provided on the support body 41 fixed in the moving body 29 at the height of the head 14 operates. Thereby, another cylinder 43 and the blade group 44 connected by a joint pin (link pin) on the supporting body 41 enter the position where the belt reinforcement strip 2 is to be cut off. By the operation of the cylinder 43, the blade set 44 descends, and the pair of blades perform cutting.

Claims (4)

1. the feedway of a green tire belt reinforcement strip material, wherein, be wound on belt reinforcing band material (2) the process a plurality of guide reels (3a, 3b, 3c) and clamping section (4) on the coiling machine (1), and be provided for dressing machine (6) through ring part (5), and be attached on the belt reinforcement material of belt forming cylinder (7), it is characterized in that

Between first guide reel (3a) and clamping section (4), be provided with and roll out cylinder (9) what whether have the detecting sensor (8) that belt reinforcing band material (2) detects and emit the belt reinforcing band material (2) that is wound on the coiling machine (1) successively;

Described ring part (5) comprising: upper and lower roll (10a, 10b); Roller group (11), it contains described lower roll (10b); Guide guide rail (12) that described roller group (11) moves up and down and the position-detection sensor (13) that detects described roller group (11) position;

The head (14) of described dressing machine (6) comprising: clamping section (16), push fixing to the belt reinforcing band material (2) that is supplied to; Tension force maintaining part (17), the cut-out power of raising belt reinforcing band material (2); Cut-out portion (18) cuts off belt reinforcing band material (2).

2. the feedway of green tire belt reinforcement strip material according to claim 1 is characterized in that, the clamping section (16) of described head (14) comprises cylinder (35), fixed head (36) and clamps chain link (37).

3. the feedway of green tire belt reinforcement strip material according to claim 1 is characterized in that, the tension force maintaining part (17) of described head (14) comprises the roller (39) that is connected chain link (38) front end.

4. the feedway of green tire belt reinforcement strip material according to claim 1 is characterized in that, the cut-out portion (18) of described head (14) comprises cylinder (42) that is connected on the supporting mass (41) and the set of blades (44) that is made of a blade.

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