JP2015112719A - Device and method for production of rubber member for tire, and air-bleeding needle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the device and method for production of a rubber member for a tire capable of further surely removing bubbles generated during the production process of the rubber member for a tire, and to provide an air-bleeding needle.SOLUTION: There is provided a production device for a rubber member for a tire which produces the rubber member by pressure-bonding the rolling-molded film rubbers on both faces of a cord arrangement body having plural arranged cord materials and comprises means for forming the air-bleeding holes by thrusting the air-bleeding needles on the film rubber before pressure-bonding on the cord arrangement body. There are also provided a production method for the rubber member for a tire using the production device and the air-bleeding needle used in the production device for the rubber member for tire.

Description

  The present invention relates to a manufacturing apparatus, a manufacturing method, and an air vent needle for a tire rubber member formed into a sheet shape.

  In a tire manufacturing process, various types of rubber members for tires (hereinafter, also simply referred to as “rubber members”) such as plies and breakers are used.

  These rubber members are manufactured by pressure-bonding (topping) a rubber material (hereinafter referred to as “film rubber”) formed into a film shape by rolling on both surfaces of a cord material such as a steel cord.

  Specifically, for example, as shown in FIG. 5, a film rubber c rolled into a sheet by passing the bank rubber a between a calendar roll 11 and a calendar roll 12, and a bank rubber a with a calendar roll 13 and a calendar. Using the film rubber d rolled into a sheet by passing between the rolls 14, the cord arrangement body b in which the cord materials are arranged at a predetermined interval is sandwiched and pressed by the calendar roll 12 and the calendar roll 13. It is manufactured by. In addition, the code | symbol 4 in a figure is a press roll which guide | induces the code arrangement | sequence body b between the calendar roll 12 and the calendar roll 13. FIG.

  At this time, an air pool may be generated in the manufactured rubber member e, and the rubber member in which such an air pool is generated is likely to have problems such as undulation disturbance and open cord. And the tire manufactured using such a rubber member may cause a fall of durability or uniformity.

  Therefore, conventionally, air bleed is performed to pierce a rubber member after pressure bonding to remove an air reservoir (for example, Patent Document 1).

JP 2000-301625 A

  However, in the above-described conventional manufacturing method, it is difficult to sufficiently remove the generated air reservoir, and a technique that can remove the air reservoir more reliably is required.

  Then, this invention makes it a subject to provide the manufacturing apparatus of a rubber member for tires, a manufacturing method, and an air bleeding needle which can remove the air pocket which generate | occur | produced in the manufacturing process of the rubber member for tires more reliably.

The invention described in claim 1
A tire rubber member manufacturing apparatus for manufacturing a tire rubber member by pressure-bonding a roll-formed film rubber on both surfaces of a code array in which a plurality of code materials are arranged,
An apparatus for producing a rubber member for a tire, comprising air vent hole forming means for forming an air vent hole by piercing an air vent needle into the film rubber before being crimped to the cord array.

The invention described in claim 2
2. The tire rubber member manufacturing apparatus according to claim 1, wherein the air vent hole forming means is a roll with a needle formed by arranging a plurality of the air vent needles on the surface.

The invention according to claim 3
The tire rubber member manufacturing apparatus according to claim 1 or 2, wherein the air vent hole forming means includes a heating means for heating the air vent needle.

The invention according to claim 4
It is used for the manufacturing apparatus of the rubber member for tires of any one of Claims 1-3, The said air vent hole is formed in the said film rubber, It is an air vent needle characterized by the above-mentioned.

The invention described in claim 5
A method for producing a tire rubber member for producing a tire rubber member by press-bonding a roll-formed film rubber on both sides of a cord array in which a plurality of cord materials are arranged,
An air vent hole is formed by piercing an air vent needle into the film rubber before being crimped to the cord array body.

  ADVANTAGE OF THE INVENTION According to this invention, the manufacturing apparatus of a rubber member for tires, a manufacturing method, and an air bleeding needle which can remove the air pocket which generate | occur | produced in the manufacturing process of the rubber member for tires more reliably can be provided.

It is a front view which shows typically the manufacturing apparatus of the rubber member for tires which concerns on one embodiment of this invention. It is the figure which expand | deployed the surface of the roll with a needle | hook of the manufacturing apparatus of the rubber member for tires which concerns on one embodiment of this invention. It is a figure which shows typically the air bleeding needle of the manufacturing apparatus of the rubber member for tires which concerns on one embodiment of this invention. It is the figure which expand | deployed the surface of the roll with a needle | hook of the manufacturing apparatus of the rubber member for tires concerning other embodiment of this invention. It is a front view which shows typically the manufacturing apparatus of the conventional rubber member for tires.

  Hereinafter, the present invention will be described with reference to the drawings based on embodiments.

1. Tire Rubber Member Manufacturing Apparatus FIG. 1 is a front view schematically showing a tire rubber member manufacturing apparatus according to the present embodiment. As shown in FIG. 1, the tire rubber member manufacturing apparatus 1 according to the present embodiment includes four calender rolls 11 to 14 and a press roll 4. It is common with the conventional apparatus for manufacturing a rubber member for a tire in that the crimping to the array b is performed.

  The tire rubber member manufacturing apparatus 1 according to the present embodiment includes an air vent forming means for forming an air vent by inserting an air vent needle into the film rubbers c and d before being crimped to the cord array b. It differs from the manufacturing apparatus of the conventional rubber member for tires by the point provided with the roll 3 with a needle | hook as.

  The tire rubber member manufacturing apparatus 1 according to the present embodiment includes two rolls 3 with needles, and each roll 3 with needles is close to calendar rolls 12 and 13.

  FIG. 2 is a developed view of the surface of the needle-equipped roll 3 of the tire rubber member manufacturing apparatus 1 according to the present embodiment. As shown in FIG. 2, a plurality of air vent needles 33 are provided at equal intervals over the entire surface of the body portion 32 of the roll 3 with a needle. Although not shown, the manufacturing apparatus 1 is provided with heating means for heating the air vent needles 33.

  FIG. 3 is a diagram schematically showing the air vent needle 33 of the tire rubber member manufacturing apparatus 1 according to the present embodiment. As shown in FIG. 3, the air vent needle 33 protrudes from the surface of the body portion 32 of the roll 3 with the needle, and the tip of the air vent needle 33 is in contact with the surfaces of the calender rolls 12 and 13 shown in FIG. The roll 3 with a needle is arranged.

2. Method for Producing Tire Rubber Member A method for producing a tire rubber member using the tire rubber member producing apparatus 1 will be described with reference to FIG.

  First, the bank rubber a is supplied between the calender rolls 11 and 12, and the film rubber c is rolled by passing between the rotating calender rolls 11 and 12, and is attached to the surface of the calender roll 12 and conveyed. In the same manner, the calender rolls 13 and 14 are roll-molded with the film rubber d and attached to the calender roll 13 for conveyance.

  Next, an air vent hole is formed by piercing the air vent needle 33 of the roll 3 with needle into the film rubbers c and d adhered to the surfaces of the calendar rolls 12 and 13.

  Specifically, the air release needle 33 is preheated to a temperature of 80 ± 15 ° by heating means, and the roll 3 with needle is rotated while the hot air release needle 33 is pierced into the film rubbers c and d. A plurality of air vent holes are formed in the film rubbers c and d. At this time, since the air vent needle 33 is preheated, the film rubbers c and d can be easily penetrated.

  Then, after the code array b is guided by the press roll 4 so as to come into contact with the surface of the film rubber d, the code array b is sandwiched between the film rubbers c and d in which air vent holes are formed, and the calendar roll 12, The tire rubber member e is manufactured by pressure bonding between the film rubbers c and d on both sides of the cord array body b.

  Conventionally, holes have been formed in the rubber member e after pressure bonding with an air vent needle in order to remove the air reservoir in the tire rubber member e. However, the air reservoir generated in the film rubbers c and d during rolling molding, The air trapped in the tire rubber member e due to air being trapped when the film rubbers c and d were pressed together could not be removed reliably.

  On the other hand, according to the present embodiment, the film rubber c and d before press-bonding was pierced with the air vent needle 33 to form the air vent hole, thereby generating the film rubber c and d at the time of rolling. Air pool can be removed properly.

  Further, when the tire rubber member e is pressure-bonded using the film rubbers c and d with the air vent holes formed in this way, air is released from the air vent holes by being pressed at the time of pressure bonding. The air pool generated in c and d can be more appropriately removed.

  Further, by forming the air vent hole in advance, the air confined between the two film rubbers c and d when the tire rubber member e is pressure-bonded in the past is removed by the pressure at the time of press-bonding. Therefore, the air reservoir can be removed more appropriately.

  Therefore, according to the present embodiment, it is possible to reliably remove the air reservoir generated in the tire rubber member e and prevent the occurrence of undulation disturbance and the occurrence of open cords.

  In addition, the roll 3 with a needle | hook may have a structure in which the several air vent needle | hook 33 is provided in the whole surface of the trunk | drum 32 like said embodiment, and is shown in FIG. Thus, you may have a structure in which the some air vent needle 33 is provided in a part of trunk | drum 32. FIG.

  In addition, the width | variety of the roll 3 with a needle | hook is good in it being 1400 mm and a diameter being about 90 mm, and the height of the air bleeding needle 33 is good in 13 mm and a diameter being about 4 mm.

  While the present invention has been described based on the embodiments, the present invention is not limited to the above embodiments. Various modifications can be made to the above-described embodiments within the same and equivalent scope as the present invention.

DESCRIPTION OF SYMBOLS 1 Manufacturing apparatus of rubber member for tires 3 Roll with needle 4 Press roll 11, 12, 13, 14 Calender roll 32 Body part of roll with needle 33 Air bleeding needle a Bank rubber b Cord arrangement body c, d Film rubber e Tire rubber Element

Claims (5)

A tire rubber member manufacturing apparatus for manufacturing a tire rubber member by pressure-bonding a roll-formed film rubber on both surfaces of a code array in which a plurality of code materials are arranged,
An apparatus for producing a tire rubber member, comprising air vent hole forming means for forming an air vent hole by piercing an air vent needle into the film rubber before being crimped to the cord array.   The tire rubber member manufacturing apparatus according to claim 1, wherein the air vent hole forming means is a roll with a needle formed on the surface by arranging a plurality of the air vent needles.   The tire rubber member manufacturing apparatus according to claim 1 or 2, wherein the air vent hole forming means includes a heating means for heating the air vent needle.   An air vent needle used in the tire rubber member manufacturing apparatus according to any one of claims 1 to 3, wherein the air vent hole is formed in the film rubber. A method for producing a tire rubber member for producing a tire rubber member by press-bonding a roll-formed film rubber on both sides of a cord array in which a plurality of cord materials are arranged,
An air vent hole is formed by piercing an air vent needle into the film rubber before being crimped to the cord array body.

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