CN210233665U - Cloth clamping diaphragm die - Google Patents

Abstract

The utility model provides a press from both sides cloth diaphragm mould, includes terrace die I, terrace die II, die, terrace die II is located terrace die I top, be equipped with solid fixed ring on the terrace die II, there is fixed connection's handle on terrace die I, the die, there is interference fit's locating pin on the terrace die I, there is interference fit's position sleeve on the die. The beneficial effects of the utility model are that, reduce the operating time under the thermal environment, avoid influencing product quality because of the operating time overlength leads to the sizing material scorching. Meanwhile, time waste and energy waste caused by back-and-forth replacement of the preforming mold and the vulcanizing mold are avoided, and the working efficiency is improved.

Description

Cloth clamping diaphragm die

Technical Field

The utility model relates to a mould, especially a press from both sides cloth diaphragm mould.

Background

The cloth clamping membrane is widely applied to automobile brake devices and regulating valves, and mainly comprises warp and weft like cloth of a framework layer and sealing layer rubber. The current forming process for producing thicker cloth-sandwiched membranes mainly comprises 2 methods of cold pressing preforming and direct vulcanization forming of a die.

Cold-pressing preforming process: when the process is adopted to produce the cloth-sandwiched diaphragm, 2 pairs of dies, one pair of preforming dies and one pair of vulcanizing dies are needed. The main process comprises the following steps: firstly, placing a preforming mold on a flat vulcanizing machine, then opening the preforming mold, placing warp and weft like cloth and fixing, then laying a layer of rubber sheet on the warp and weft like cloth, and finally closing the mold and pressing a semi-finished product of an adhesive tape pasting membrane with glue on one side, which can be manufactured after a period of time; placing the vulcanizing mould on a flat vulcanizing machine, preheating to a required temperature, opening the mould, placing the preformed semi-finished product of the rubberized fabric membrane, placing a rubber sheet above the semi-finished product of the rubberized fabric membrane, and closing the mould, heating and pressurizing to vulcanize the finished product of the membrane. The process needs 2 pairs of pre-forming and vulcanizing moulds and comprises 2 steps of pre-forming and vulcanizing, the temperature is low or room temperature during pre-forming, the temperature is high during vulcanizing, the temperature needs to be raised and lowered again, the pre-forming and vulcanizing moulds are replaced, and time and energy consumption are wasted; or 2 flat vulcanizing machines are adopted for production, one flat vulcanizing machine is used for preforming, the other flat vulcanizing machine is used for vulcanizing, and larger equipment investment is needed.

Direct molding vulcanization process: the cloth-sandwiched diaphragm produced by the process mainly comprises the steps of placing a mould on a flat vulcanizing machine, preheating to a required temperature, opening the mould, laying a layer of rubber sheet, then placing warp and weft like cloth, fixing, placing a layer of rubber sheet, closing the mould, heating, pressurizing and vulcanizing. The temperature of the lower die is high, and after the first layer of rubber is placed, the rubber cannot be completely contacted and attached with the die, so that the rubber is not synchronous in thermal shrinkage, the thickness of a rubber sheet is uneven, and canvas deviation and cloth exposure phenomena can occur in a pressed cloth clamping membrane; the rubber scorch is caused by overlong operation time, and the appearance quality and the performance of the product are reduced.

SUMMERY OF THE UTILITY MODEL

In order to overcome the prior art problems, the utility model provides a double-layered cloth diaphragm mould.

The technical scheme of the utility model, a press from both sides cloth diaphragm mould, including terrace die I, terrace die II, die, terrace die II is located I top of terrace die, be equipped with solid fixed ring on the terrace die II, there is fixed connection's handle on terrace die I, the die, there is interference fit's locating pin on the terrace die I, there is interference fit's position sleeve on the die.

Furthermore, the male die I, the male die II and the female die are provided with exhaust holes and glue overflow holes at the same radial position.

Furthermore, the lower aperture of the glue overflow hole of the male die I is larger than the upper aperture.

Furthermore, the lower aperture of the glue overflow hole of the concave die is smaller than the upper aperture.

Furthermore, the positions of the positioning pin and the positioning sleeve can be interchanged, namely the positioning sleeve in interference fit is arranged on the male die I, and the positioning pin in interference fit is arranged on the female die.

The beneficial effects of the utility model are that, reduce the operating time under the thermal environment, avoid influencing product quality because of the operating time overlength leads to the sizing material scorching. The time waste and the energy waste caused by back and forth replacement of the preforming mold and the vulcanizing mold are avoided, and the working efficiency is improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1. a male die I; 2. a male die II; 3. a female die; 4. glue overflow holes; 5. an exhaust hole; 6. a fixing ring; 7. positioning pins; 8. a positioning sleeve; 9. a handle.

Detailed Description

As shown in figure 1, the cloth clamping membrane die comprises a male die I, a male die II and a female die, wherein the male die II is located above the male die I, a fixing ring is arranged on the male die II, handles fixedly connected with the male die I and the female die are arranged on the male die I, a positioning pin in interference fit is arranged on the male die I, a positioning sleeve in interference fit is arranged on the female die, an exhaust hole and a glue overflow hole are arranged at the same radial position of the male die I, the male die II and the female die, the lower aperture of the glue overflow hole on the male die I is larger than the upper aperture, and the lower aperture of the glue overflow hole on the female die is smaller than the upper aperture.

The positions of the positioning pin and the positioning sleeve can be interchanged, namely the male die I is provided with the positioning sleeve in interference fit, and the female die is provided with the positioning pin in interference fit.

Claims (5)

1. The utility model provides a press from both sides cloth diaphragm mould, includes terrace die I, terrace die II, die, its characterized in that, terrace die II is located terrace die I top, be equipped with solid fixed ring on the terrace die II, there is fixed connection's handle on terrace die I, the die, there is interference fit's locating pin on the terrace die I, there is interference fit's position sleeve on the die.

2. The cloth-sandwiched membrane mold as claimed in claim 1, wherein the male mold I, the male mold II and the female mold are provided with air vent holes and glue overflow holes at the same radial positions.

3. The cloth-sandwiched membrane mold as claimed in claim 2, wherein the lower aperture of the glue overflow hole of the male mold I is larger than the upper aperture.

4. A fabric sandwiched diaphragm mold as claimed in claim 3, wherein the lower aperture of the glue overflow hole of said female mold is smaller than the upper aperture.

5. A cloth sandwiched diaphragm mould as claimed in claim 1, wherein the positions of the locating pin and the locating sleeve are interchangeable, that is, the male mould i is provided with the locating sleeve in interference fit, and the female mould is provided with the locating pin in interference fit.

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