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Preforming process of rubber sheet for vulcanization of shock insulation support

A technology of pre-forming and vibration-isolating rubber, applied in the field of vibration-isolating rubber products, can solve the problems of shortening the pre-forming time of the film of the vibration-isolating rubber bearing, bonding of isolation pads, etc., and achieve automatic reverse opening and fixed-length cutting. , Reduce the degree of adhesion, avoid the effect of pulling and curling deformation

Pending Publication Date: 2022-05-27
ZHEJIANG TIANTIE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an optimized process for the pre-forming of rubber sheets used in the vulcanization of shock-absorbing rubber bearings, to unify the pre-forming production equipment and processes for inner rubber and outer rubber with different shapes and specifications, and to be flexible according to fluctuations in calendering thickness Adjust the slice size to solve the problem of serious adhesion between the film and the isolation pad when it is rolled up, shorten the pre-forming time of the film for the vibration-isolation rubber bearing to the greatest extent, reduce production costs, and improve production efficiency

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Example 1: After the mixed rubber is discharged from the internal mixer, it is first unloaded through an open mill. The thickness of the film is adjusted by the roll distance of the open mill, and the width of the film is adjusted by the distance between the baffles of the open mill, so as to be continuous and smooth. The form of the film is neatly stored on the plastic tray, and then sent to the cold feed extruder through the automatic glue supply conveyor belt. After calendering, the film is pressed out for thickness and width monitoring, and then forced air cooling in the form of continuous flat belt transmission. After cooling, the temperature of the film is controlled at 45±10°C, and then sliced ​​by an intelligent digital vibration cutting system. Finally, the film is weighed and processed. According to the weight of each vibration-isolating rubber bearing, the glue is collected and stacked on the louver. The cut film is isolated with 0.1mm PTFE soft board. The num...

Embodiment 2

[0025]Example 2: After the mixed rubber is discharged from the internal mixer, it is first unloaded through an extruder. The thickness and width of the film are adjusted by the size of the extrusion die, and it is neatly stored in the plastic in the form of a continuous and smooth film. On the tray, it is then sent to the cold feed extruder through the automatic glue supply conveyor belt. After extrusion, the temperature is controlled at 90±10℃, and the automatic continuous glue supply conveyor belt enters the four-roll calender for calendering. The film is extruded for thickness and After the width is monitored, forced air cooling is carried out in the form of continuous rollers. After cooling, the temperature of the film is controlled at 40±10°C, and then sliced ​​by an intelligent digital vibration cutting system. The weight of the glue is collected and stacked on the louver. The cut film is isolated with a 0.1mm PTFE soft board. The number of layers of film on each louver i...

Embodiment 3

[0026] Example 3: After the mixed rubber is discharged from the internal mixer, it is first unloaded through an extruder. The thickness and width of the film are adjusted by the size of the extrusion die, and it is neatly stored in the plastic in the form of a continuous and smooth film. On the tray, it is then sent to the cold feed extruder through the automatic glue supply conveyor belt. After extrusion, the temperature is controlled at 90±10℃, and the automatic continuous glue supply conveyor belt enters the four-roll calender for calendering. The film is extruded for thickness and After the width is monitored, forced air cooling is carried out in the form of continuous rollers. Cooling water is connected to the inside of the rollers. After cooling, the temperature of the film is controlled at 30±10°C, and then sliced ​​by an intelligent digital vibration cutting system. The glued weight of each shock-isolating rubber bearing is collected and stacked on the louver. The cut f...

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Abstract

The invention relates to a preforming process of a rubber sheet for vulcanization of a shock insulation rubber support, which comprises the following steps: extruding a rubber compound through a cold feed extruder, controlling the temperature at 90 + / -5 DEG C, feeding the extruded rubber compound into a multi-roller calender through an automatic continuous rubber supply conveyor belt for calendering, cooling the extruded rubber sheet, controlling the temperature of the cooled rubber sheet at 30 + / -10 DEG C, and carrying out preforming; and then slicing by means of an intelligent digital vibration cutting system, or selecting a 0.1-0.5 mm PTFE soft plate to isolate the rolled and cooled rubber sheet and storing the whole roll of rubber sheet, and finally weighing the rubber sheet and collecting the rubber sheet according to the rubber feeding weight of each shock insulation rubber support. By the adoption of the process, preforming production equipment for inner-layer rubber and outer-coating rubber of different shapes and specifications is unified, the slicing size can be flexibly adjusted according to fluctuation of the rolling thickness, the rubber sheet preforming time of the shock insulation rubber support can be shortened to the maximum extent, and the production benefit is improved.

Description

technical field [0001] The invention relates to the field of vibration-isolating rubber products, in particular to an optimized process for pre-forming a film for vulcanization of a vibration-isolating rubber bearing. Background technique [0002] In recent years, with the increasing maturity of basic seismic isolation technology, the types and specifications of seismic isolation rubber bearings have become more and more abundant. The typical model is 0.4m-1.6m), the height and the size of the center hole are also different according to the design needs. The shock-isolating rubber bearing is a thick rubber product made of alternately stacking rubber and steel plates, and the side is wrapped with outer rubber. In order to ensure the product's type, size and performance stability, the uniformity of film thickness and weight is very high. Therefore, products of different types and specifications need to be pre-formed with different specifications of round or square inner film ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C48/00B29C48/07B29C48/28B29C48/885B29C48/92
CPCB29C48/0011B29C48/0022B29C48/07B29C48/28B29C48/885B29C48/9135B29C48/92B29C2948/92133B29C2948/92152
Inventor 姜永恒晏苗漆鹏易霞
Owner ZHEJIANG TIANTIE IND
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