JP3108389U - Unvulcanized vulcanizer - Google Patents

Abstract

An object of the present invention is to provide a vulcanizing apparatus for unvulcanized materials such as a low-edge belt, a multi-rib belt, a toothed belt, etc., which can be uniformly vulcanized without using a mold even when using molds having different heights. For the purpose.
SOLUTION: A plurality of molds 4 having different heights, each having an unvulcanized product 5 mounted on the outer peripheral surface thereof, are placed on a support base 3 having the same surface in a vulcanizing can 2 to provide an outer periphery of the unvulcanized product 5. This is a vulcanizing apparatus 1 for placing a jacket on the surface side, placing an upper plate holding plate 7 thereon, and then heating and pressurizing the inside of the vulcanizing can 2 to vulcanize the unvulcanized product 5. Each upper lid 8 is installed on the plate 7 so as to be movable up and down, and when the upper plate holding plate 7 is installed on the molding die 4, each upper lid 8 presses the molding die with a constant pressure.
[Selection] Figure 1

Description

  The present invention relates to a vulcanizing device such as a transmission belt, and more specifically, a low-edge belt, a multi-rib belt, a toothed belt, etc. that can be uniformly vulcanized without using a mold even when using different molds. The present invention relates to an unvulcanized product vulcanizing apparatus.

  The conventional belt vulcanizing apparatus has a hollow inner mold having an unvulcanized belt sleeve mounted on the outer peripheral surface thereof, and a cylindrical jacket that can be elastically deformed is further concentrically fitted on the outer peripheral surface thereof. The assembled product is placed on a support base located in the lower part of the vulcanizing can via an elastic packing material, an upper lid is placed on the mold, high-pressure steam is placed outside the mold, and low-pressure steam is placed inside the mold. Are respectively press-fitted to vulcanize the unvulcanized belt sleeve. The high-pressure steam and the low-pressure steam both enter from the introduction port, and the internal moisture is discharged from the drain port.

  In the belt vulcanizing apparatus, the high pressure steam outside the jacket presses the jacket, and then presses the unvulcanized belt sleeve, thereby discharging the heating and pressurizing medium existing in the gap between the jacket and the mold, and a predetermined amount. The object is to obtain a belt sleeve of good quality by molding and solidifying rubber into a shape and making it dense without containing bubbles.

Further, Patent Document 1 discloses a belt vulcanizing apparatus for simultaneously vulcanizing a plurality of molds equipped with belt sleeves in one vulcanizing can.
Japanese Patent No. 293215

  However, since one upper plate that can cover a plurality of conventional molds is used and is fitted to the longest mold among the plurality of jackets, the upper part of the lower mold and the upper plate holding plate It was easy for steam leakage to occur.

  In view of the actual situation as described above, the present invention addresses this problem. Even when using molds having different heights, a low-edge belt, a multi-rib belt, a tooth that can be uniformly vulcanized without leaking from the mold. An object of the present invention is to provide a vulcanizing apparatus for unvulcanized materials such as a belt with a belt.

  The invention described in the claims of the present application is that an outer periphery of an unvulcanized molded product is formed by installing a plurality of molding dies having different heights on the outer peripheral surface on a support base having the same surface in a vulcanized can. In a vulcanizing apparatus in which a jacket is disposed on the surface side and an upper plate holding plate is installed thereon, and then the inside of the vulcanizing can is heated and pressurized to vulcanize the unvulcanized product, An unvulcanized product vulcanization device in which an upper lid is installed so as to be movable up and down, and each upper lid presses the mold at a constant pressure when the upper plate holding plate is installed in the mold. Each mold includes a case where an internal pressure intake / exhaust pipe and an exhaust / evacuation pipe are provided in which a heat and pressure medium such as steam is placed in the mold.

  In the unvulcanized product vulcanizing apparatus of the present invention, each upper lid is installed on the upper plate holding plate so as to be movable up and down, and when the upper plate holding plate is installed in the molding die, each upper lid is placed at a constant pressure. Because of the pressing, each mold is pressed at a constant pressure by a movable upper lid, and can be vulcanized without causing steam leakage. In addition, by closing the intake / exhaust pipe 9, there is no need to install the mold as a dummy as in the prior art, and further, the mold is evacuated during a time period when the internal pressure at the initial stage of vulcanization does not enter. This makes it easy to remove the heat and pressure medium of each constituent layer of the unvulcanized product.

The present embodiment will be described below with reference to the accompanying drawings. FIG. 1 is a schematic cross-sectional view of an unvulcanized product vulcanizing apparatus according to the present invention. An unvulcanized product vulcanizing apparatus 1 according to the present invention has a horizontal support base 3 provided in a vulcanizing can 2 that can be opened and closed. A plurality of (three in the drawing) molds 4 having different heights are provided. The vulcanizing can 2 is configured to be able to intake and exhaust external pressure. The mold 4 is provided with an unvulcanized material 5 made of a belt sleeve such as a low edge belt, a multi-rib belt, or a toothed belt, a jacket 6 is disposed on the outer peripheral surface side, and each upper lid 8 is provided on the upper side. The fixed rod 11 is inserted into a through-hole provided in the upper plate holding plate 7 so as to be movable up and down. When the upper plate holding plate 7 is set in the mold 4, each upper lid 8 is independently weighted. The mold 4 is pressed to prevent steam leakage.
The tip of the rod 11 has a locking portion (not shown) having a large diameter so as not to come off the upper plate holding plate 7.

  Each mold 4 is provided with an intake pipe 9 for injecting the internal pressure into the mold independently. When vulcanizing the first and second molds 4, the third intake pipe 9 is By closing, it is not necessary to install the mold as a dummy as in the prior art.

  Further, each mold 4 is provided with an exhaust / evacuation tube 10 for performing independent exhaust and evacuation. For this reason, the mold 4 is evacuated during the time period when the internal pressure at the initial stage of vulcanization does not enter, so that the sealing performance of the jacket is improved and the heated and pressurized medium of each component layer of the unvulcanized product 5 is easily removed. .

  The vulcanizing apparatus according to the present invention can be applied to an unvulcanized vulcanizing apparatus such as a low edge belt, a multi-rib belt, and a toothed belt.

It is a schematic sectional drawing of the vulcanization | cure apparatus of the unvulcanized material which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Unvulcanized product vulcanizer 2 Vulcanized can 3 Support base 4 Mold 5 Unvulcanized product 6 Jacket 7 Upper plate holding plate 8 Upper lid 9 Intake pipe 10 Exhaust / evacuation pipe 11 Rod

Claims (2)

  A plurality of molds with different heights with the unvulcanized molded product attached to the outer peripheral surface are placed on a support base consisting of the same surface in the vulcanized can, and a jacket is arranged on the outer peripheral surface side of the unvulcanized product, After installing the upper plate holding plate thereon, in the vulcanizing apparatus for vulcanizing the unvulcanized product by heating and pressurizing the inside of the vulcanizing can, each upper lid is installed on the upper plate holding plate so as to be movable up and down. An unvulcanized vulcanizing apparatus, wherein each upper lid presses the mold at a constant pressure when the upper plate holding plate is installed in the mold. 2. An unvulcanized vulcanizing apparatus according to claim 1, wherein each molding die is provided with an intake / exhaust pipe having an internal pressure for putting a heating / pressurizing medium in the mold and an exhaust / evacuation pipe.

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