JP2009279815A - Continuous vulcanization apparatus for rubber hose - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a continuous vulcanization apparatus for a rubber hose which can continuously vulcanize an unvulcanized rubber hose irrespective of the timing of its supply from the previous process. <P>SOLUTION: An endless string-like member 6 is stretched over the moving route of the rubber hose in the continuous vulcanization apparatus 1 and revolved. The string-like member 6 is made to pass through the outside of the vulcanization chamber 2 at the inlet 4 and outlet 5 of the vulcanization chamber 2. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a continuous vulcanizing device for a rubber hose, and more particularly to a continuous vulcanizing device for a rubber hose capable of continuously vulcanizing an unvulcanized rubber hose regardless of the timing supplied from the previous step.

  For rubber hoses used in various applications such as air conditioners, a continuous vulcanization process for continuous vulcanization is being used in recent years in order to efficiently produce a single product in large quantities. The method of vulcanizing continuously is employed (for example, see Patent Document 1). Since the unvulcanized rubber hose is intermittently supplied for each production lot from the previous process of rubber extrusion, reinforcement layer coating, etc., to the vulcanizing tank that performs this continuous vulcanization, the path of movement of the rubber hose in the vulcanizing tank In addition, a heat-resistant dummy rope is preliminarily hung. In this way, when an unvulcanized rubber hose is supplied to the vulcanization tank from the previous step of the vulcanization step, the tip of the unvulcanized rubber hose is connected to one end of this dummy rope and the other end is vulcanized. By winding from the outlet side of the vulcanizing tank, the unvulcanized rubber hose can be immediately vulcanized while being drawn into the vulcanizing tank and moved. At the end of the unvulcanized rubber drawn into the vulcanizing tank, another dummy rope is attached, and after the continuous vulcanization is completed, the dummy rope seems to be over the moving path in the vulcanizing tank again. Thus, the system waits until the unvulcanized rubber hose of the next production lot is supplied.

  However, from the opposite viewpoint, in the procedure as described above, the unvulcanized rubber hose cannot be supplied from the previous process to the vulcanization process until the dummy rope is passed over the moving path of the rubber hose in the vulcanization tank. It turns out that. For this reason, when the vulcanization tank is enlarged and the movement path becomes longer, the period for stopping the previous process becomes longer, which causes a problem that the production efficiency of the rubber hose is lowered.

In order to solve such problems, it is only necessary to prepare dummy ropes of various lengths and use dummy ropes of appropriate lengths in accordance with the timing at which the unvulcanized rubber hose is supplied from the previous process. However, it is not realistic to do it at the production site.
Japanese Unexamined Patent Publication No. 7-195382

  An object of the present invention is to provide a continuous vulcanizing device for a rubber hose capable of continuously vulcanizing an unvulcanized rubber hose regardless of the timing supplied from the previous step.

  The rubber hose continuous vulcanizing apparatus of the present invention that achieves the above object is a rubber hose continuous vulcanizing apparatus that vulcanizes while moving an unvulcanized rubber hose along a moving path in a vulcanizing tank. An endless string-like member is looped over the path and rotated, and the string-like member passes through the outside of the vulcanizing tank at the inlet and outlet of the vulcanizing tank. .

  It is desirable to provide tension adjusting means for adjusting the tension of the string-like member in the middle of the movement path of the string-like member. Moreover, it is preferable to use a metal wire or chain for the string-like member.

  According to the continuous vulcanizing apparatus for a rubber hose of the present invention, an endless string-like member is looped over the moving path of the rubber hose in the vulcanizing tank and rotated, and the string-like member is at the inlet and outlet of the vulcanizing tank. Since it passes through the outside of the vulcanizing tank, the end of the unvulcanized rubber hose is fixed in the middle of the string-like member, so that the unvulcanized rubber hose can be pulled into the vulcanizing tank and vulcanized at any time. Therefore, the unvulcanized rubber hose can be continuously vulcanized regardless of the timing supplied from the previous step.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 shows the structure of a rubber hose continuous vulcanizing apparatus (hereinafter simply referred to as “continuous vulcanizing apparatus”) according to an embodiment of the present invention.

  This continuous vulcanizer 1 hangs an endless string-like member 6 from an inlet 4 to an outlet 5 along a moving path of a rubber hose formed by a plurality of large pulleys 3 installed inside a vulcanizing tank 2. It is what you gave. The string-like member 6 is wound around a plurality of small pulleys 7 outside the vulcanizing tank 2. At least one of the small pulleys 7 is rotationally driven by an electric motor (not shown) so as to rotate the string-like member 6 in a direction from the inlet 4 to the outlet 5 of the vulcanizing tank 2.

  A rubber hose vulcanization method using the continuous vulcanizer 1 will be described below with reference to FIG.

  As shown in FIG. 2A, the tip of the unvulcanized rubber hose 8 supplied from the previous step is detachably fixed to the middle of the string-like member 6 in front of the inlet 4 by an elastic member. . Since the string-like member 6 is rotating, the unvulcanized rubber hose 8 is drawn into the vulcanizing tank 2 from the inlet 4 together with the string-like member 6 as shown in FIG. It is vulcanized while moving along the formed movement path. When the unvulcanized rubber hose 8 is drawn into the vulcanizing tank 2, the middle of the unvulcanized rubber hose 8 may be appropriately fixed to the string-like member 6. And as shown in FIG.2 (c), the front-end | tip of the rubber hose 9 after the vulcanization which came out from the exit 5 is removed from the string-like member 6, and it supplies to a post process.

  Since the continuous vulcanizing apparatus 1 is configured as described above, the unvulcanized rubber hose 8 is always drawn into the vulcanizing tank 2 and moved by fixing the tip of the unvulcanized rubber hose 8 in the middle of the string-like member 6. Therefore, the unvulcanized rubber hose 8 can be continuously vulcanized regardless of the timing supplied from the previous step, and the production efficiency of the rubber hose can be improved.

  As for the string-like member 6, it is desirable to use a metal wire or chain excellent in heat resistance and durability so that it can withstand the temperature in the vulcanizing tank 2 for a long time.

  Further, in order to prevent the string-like member 6 from being elongated due to thermal expansion to cause slack and falling off from the large pulley 3 or the like, it is desirable to apply tension to the string-like member 6 to tension it. Therefore, for example, as shown in FIG. 3, tension adjusting means comprising an accumulator 10 is attached to at least one small pulley 7, and the position of the small pulley 7 is moved to give an appropriate tension to the string-like member 6. It is good to do.

It is sectional drawing which shows the structure of the continuous vulcanizer which consists of embodiment of this invention. It is sectional drawing explaining the method of vulcanizing a rubber hose with a continuous vulcanizer, (a) drawing in the rubber hose into the vulcanization tank, (b) continuous vulcanization of the rubber hose, and (c) vulcanizing. The drawing of the rubber hose from the sulfur tank is shown respectively. It is sectional drawing which shows the structure of the continuous vulcanizer which consists of another embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Continuous vulcanizer 2 Vulcanization tank 3 Large pulley 4 Inlet 5 Outlet 6 String member 7 Small pulley 8 Unvulcanized rubber hose 9 Rubber hose 10 after vulcanization Accumulator

Claims (3)

In the continuous vulcanization device for rubber hose that vulcanizes while moving the unvulcanized rubber hose along the moving path in the vulcanizing tank,
An endless string-like member is looped over the moving path of the rubber hose and rotated, and the string hose is passed through the outside of the vulcanizing tank at the inlet and outlet of the vulcanizing tank. Sulfur equipment.   The continuous vulcanizing device for a rubber hose according to claim 1, wherein tension adjusting means for adjusting the tension of the string-like member is provided in the middle of the movement path of the string-like member.   The continuous vulcanizing device for a rubber hose according to claim 1 or 2, wherein the string-like member is a metal wire or chain.