JP2006205636A - Take-up apparatus of unvulcanized rubber sheet material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inexpensive lightweight and easy-to-handle take-up apparatus of an unvulcanized rubber sheet material capable of efficiently cooling an unvulcanized strip-like rubber member kneaded by a mixer to keep it. <P>SOLUTION: A truck 15 has running wheels 18 provided to its bottom part at a plurality of places, and the take-up roll 19a of a take-up liner 17 comprising an aluminum alloy and the unwinding roll 19b of the take-up liner 17 are arranged on a truck frame 19 in a rotationally drivable manner. The take-up roll 19a and the unwinding roll 19b are rotationally driven by the rotary drive motor not shown in Fig. arranged to the outside of the truck 15 to control the take-up speed and unwinding speed of the unvulcanized rubber sheet material Wa and the take-up liner 17. A temperature adjusting thermostatic tank 20 which houses the truck 15 has a temperature adjusting mechanism 21 provided to the outside of its hermetically closed chamber to control the temperature in the chamber. In this embodiment, the take-up liner 17 is formed especially using an aluminum alloy (A3000 type, A5000 type or A6000 type alloy) sheet high in heat conductivity. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a winder for unvulcanized rubber sheet material, and more specifically, uses an unvulcanized belt-shaped rubber member kneaded by a mixer using cooling means such as water, adhesion prevention material such as talc, and the like. The present invention relates to an unvulcanized rubber sheet material winding device that can be efficiently cooled and stored without any trouble.

  Conventionally, in a tire molding process, etc., a mixed material in which a rubber material and a predetermined compounding agent are mixed with a mixer (molded with no vulcanizing agent is called a master) is formed into a sheet-like material. Then, after applying an anti-adhesion material such as talc on the front and back surfaces of the sheet-like material, hang it in a meandering manner on a hanger called a festoon, cool it, then meander it on a pallet and store it Generally done.

  Further, as shown in FIG. 3, an unvulcanized belt-like rubber member W, which is a tire constituent member such as a tire tread or a side rubber member, which is extruded and molded by an extruder 1 connected to a mixer, is predetermined by a cutting device 2. Is cut to a predetermined length, and the unvulcanized belt-like rubber member Wa thus cut is placed and stored in multiple stages on a carriage 3 such as a kelly truck for the purpose of maintaining the shape until the tire is formed. The way is done.

  However, the unvulcanized belt-shaped rubber member Wa such as the unvulcanized tire tread and the side rubber member cut into the standard length is shaped by cooling or the like while it is left to be used at the time of subsequent tire molding. As a result, the dimensional accuracy of the material becomes unstable at the time of molding the tire, which deteriorates the tire uniformity after the molding of the tire.

  Therefore, in recent years, as shown in FIG. 4, the unvulcanized belt-like rubber member W extruded and molded by the extruder 1 is not cut in advance, but in a long state with the winding liner R interposed therebetween. It has been practiced to roll up in a roll shape, unwind immediately before use during molding, and cut at a fixed length to suppress shrinkage of the material shape and guarantee dimensional accuracy (see, for example, Patent Document 1).

However, conventional winding liners are often made of resin or using a metal material with poor thermal conductivity, and are difficult to store while efficiently cooling the unvulcanized belt-like rubber member Wa, In the case of liners such as steel and iron, there is a problem that the weight is large and the handling is inconvenient and the cooling time is required.
Japanese Patent Laid-Open No. 5-301300 (pages 2 to 3 and FIG. 1)

  This invention pays attention to such conventional problems, and is a lightweight, easy-to-handle unvulcanized rubber sheet material that can efficiently cool and store an unvulcanized belt-shaped rubber member kneaded by a mixer. An object of the present invention is to provide a winding device.

  In order to achieve the above object, the present invention forms an unvulcanized belt-shaped rubber member kneaded by a mixer into a sheet shape, and winds and unwinds the sheet-like material in a roll shape via a winding liner. A winding device for a vulcanized rubber sheet material, wherein the winding liner is made of a non-stretchable aluminum alloy plate having a lateral width equal to or larger than the width of the unvulcanized rubber sheet material and continuous in the longitudinal direction. The gist is that it has been formed.

  Here, the surface of the winding liner is anodized, and the winding liner is formed of an aluminum alloy plate having a thickness of 0.6 mm to 1.0 mm. Furthermore, it is possible to provide a temperature-controlled thermostatic bath for heating the unvulcanized rubber sheet material wound around the winding liner to a constant temperature.

  As described above, the unvulcanized belt-like rubber member kneaded by the mixer can be efficiently cooled and stored without using a cooling means such as water or an adhesion preventing material such as talc.

This invention forms an unvulcanized belt-like rubber member kneaded by a mixer as described above into a sheet shape, and unwinds and unwinds the sheet-like material in a roll shape via a winding liner. A rubber sheet material winding device, wherein the winding liner is formed of a non-stretchable aluminum alloy plate having a lateral width equal to or greater than the width of the unvulcanized rubber sheet material and continuous in the longitudinal direction. Therefore, the following excellent effects are achieved.
(a) There is an effect that the unvulcanized belt-shaped rubber member kneaded by the mixer can be efficiently cooled and stored, and it is inexpensive, lightweight, and easy to handle.
(b) The unvulcanized rubber sheet material is housed in a temperature-controlled thermostat equipped with a temperature adjustment mechanism by placing a carriage on which a winding liner obtained by winding the unvulcanized rubber sheet material in a roll shape is placed. Therefore, the production process in the next process can be efficiently performed. (c) Since the thermal conductivity of the aluminum alloy is good, the unvulcanized rubber sheet material can be heated and cooled in a short time.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
In the following description, the same components as those in the conventional example are denoted by the same reference numerals, and description thereof is omitted.

  FIG. 1 shows a schematic configuration diagram of an unvulcanized rubber sheet material winding device embodying the present invention, wherein 11 is a mixer for mixing a rubber material and a compounding agent (excluding a vulcanizing agent), and 12 is a mixing device. A conveyor for conveying the unvulcanized belt-like rubber member W mixed in the machine 11, 13 a calender roll for forming the unvulcanized belt-like rubber member W into a sheet shape, and 14 a supply conveyor, from the supply conveyor 14 to the carriage The unvulcanized rubber sheet material Wa formed in the sheet shape is supplied to a liner winding device 16 installed on the belt 15 and wound in a roll shape by a belt-shaped winding liner 17.

  The carriage 15 is provided with traveling wheels 18 at a plurality of locations at the bottom, and the carriage frame 19 is provided with a winding roll 19a and an unwinding roll 19b of a winding liner 17 made of aluminum alloy so as to be rotationally driven. Has been. The winding roll 19a and the unwinding roll 19b are rotationally driven by a rotation driving motor (not shown) installed outside the carriage 15, and the unvulcanized rubber sheet material Wa and the winding liner 17 are wound and unwinded. Can be controlled.

  Moreover, the temperature-controlled thermostat 20 that accommodates the carriage 15 includes a temperature-adjusting mechanism 21 that controls the temperature of the room outside the sealed room.

  In this embodiment, the take-up liner 17 uses an aluminum alloy (A3000 series, A5000 series, A6000 series alloy, etc.) plate having a particularly high thermal conductivity. Specifically, a plate-like surface made of an aluminum alloy (A5052P) plate having a thickness of 0.6 mm to 1.0 mm is anodized, and this winding liner 17 is made of unvulcanized rubber sheet material Wa to be wound and stored. It has at least a width greater than the width.

  FIG. 2 is a graph explanatory view of a cooling curve when the plate-like unvulcanized rubber sheet material Wa is naturally cooled, when cooled by the winding liner 17 made of an aluminum alloy plate, and further cooled by water cooling. ing.

[Experimental conditions]
(a). Temperature of unvulcanized rubber band: 110 ° C Thickness x width x length: 20mm x 100mm x 100mm
(b). Water: 13 ° C, 15 liters (c). Aluminum alloy: 15 ° C, Thickness x Width x Length: 15mm x 200mm x 300mm
(d). Temperature: 17.5 ° C, humidity 45%

  As is apparent from the graph of FIG. 2, when an aluminum alloy was used as the winding liner 17, the unvulcanized rubber sheet material Wa could be cooled more efficiently and equally than natural cooling.

  By configuring the present invention as described above, the unvulcanized belt-shaped rubber member kneaded by the mixer can be efficiently cooled without using a cooling means such as water or an adhesion preventing material such as talc. It can be stored.

  In addition, by accommodating the carriage 15 in the temperature-controlled thermostat 20 provided with the temperature adjustment mechanism 21, the temperature of the unvulcanized rubber sheet material Wa can be always kept at a constant temperature, and production in the next process is possible. The work can be performed efficiently.

It is a schematic block diagram of the winding apparatus of the unvulcanized rubber sheet material which implemented this invention. It is a graph explanatory drawing of the cooling curve which compared the case where it cools by the case where it cools by the case where it cools by the case where the unvulcanized belt-like rubber member is cooled naturally, the belt-like mounting material which consists of an aluminum alloy plate. It is explanatory drawing of the storage method of the conventional unvulcanized belt-shaped rubber member. It is explanatory drawing of the storage method of the other conventional unvulcanized belt-like rubber member.

Explanation of symbols

1 Extruder 2 Cutting device 3 Cart
R Winding liner 11 Mixer 12 Conveyor 13 Calender roll 14 Feeding conveyor 15 Cart 16 Liner winding device 17 Winding liner 18 Traveling wheel 19 Bogie frame 19a Winding roll 19b Unwinding roll 20 Temperature adjusting thermostatic chamber 21 Temperature adjusting mechanism W Unvulcanized rubber band material Wa Unvulcanized rubber sheet material

Claims (4)

An unvulcanized rubber sheet material take-up device that forms an unvulcanized belt-like rubber member kneaded by a mixer into a sheet shape, winds the sheet-like material into a roll form via a take-up liner, and rewinds it. There,
The unvulcanized rubber sheet material, wherein the winding liner is formed of a non-stretchable aluminum alloy plate having a lateral width equal to or larger than the width of the unvulcanized rubber sheet material and continuous in the longitudinal direction. Winding device. The winding device for unvulcanized rubber sheet material according to claim 1, wherein the surface of the winding liner is anodized. The winding device for unvulcanized rubber sheet material according to claim 1 or 2, wherein the winding liner is formed of an aluminum alloy plate having a thickness of 0.6 mm to 1.0 mm. The unvulcanized rubber sheet material winding device according to claim 1, 2 or 3, further comprising a temperature-controlled thermostatic chamber for heating the unvulcanized rubber sheet material wound around the winding liner to a constant temperature.

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