Guiding device for continuous production of ePTFE microporous membrane
A guiding device and microporous membrane technology, applied in the field of ePTFE membrane production, can solve the problems of easy volatilization of solvents and inability to adjust the guiding width, and achieve the effect of preventing volatilization
Pending Publication Date: 2022-03-11
中材科技膜材料(山东)有限公司 +1
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Problems solved by technology
[0005] Aiming at the technical problems in the prior art that the material guiding width cannot be adjusted after pushing and the solvent is easy to volatilize, the present invention provides a guiding device for continuous production of ePTFE microporous membrane, which can adjust the width when guiding the extruded paste material , at the same time, the material is closed during orientation to prevent solvent volatilization
Method used
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Embodiment 1
[0025] Such as Figure 1-3 , the guide device for the continuous production of ePTFE microporous membrane of the present invention, comprises pushing die head 1, guide plate 3, and the width of guide plate 3 increases gradually from one end to the other end, is provided with two ends in guide plate 3 The guide cavity 15 of the opening, the guide plate 3 is welded and fixed to the side of the push die 1, the guide cavity 15 is used to guide the extruded material of the push die 1, and the guide plate 3 is provided for adjusting the extruded material in An adjustment mechanism for guiding cavity 15 discharge width.
[0026] Described adjusting mechanism comprises first adjusting plate 4, second adjusting plate 9, screw mandrel 7, and first adjusting plate 4 is hinged with guide cavity 15 narrow mouth end side inner walls by first hinge point 2, and second adjusting plate 9 The second hinge point 10 is hinged with the inner wall on the other side of the narrow mouth end of the g...
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Abstract
The invention relates to the technical field of ePTFE membrane production, in particular to a guide device for continuous production of ePTFE microporous membranes, which comprises a pushing die head and a guide flat plate, the width of the guide flat plate is gradually increased from one end to the other end, a guide cavity with two open ends is arranged in the guide flat plate, the guide flat plate is fixed with the side surface of the pushing die head, and the guide flat plate is fixed with the guide cavity. The guiding cavity is used for guiding materials extruded by the pushing and extruding die head, and the guiding flat plate is provided with an adjusting mechanism used for adjusting the discharging width of the extruded materials in the guiding cavity. The width of pushed materials can be adjusted when the guiding flat plate is discharged, follow-up calendaring operation of entering calendaring equipment is facilitated, meanwhile, the guiding flat plate is guided in a closed cavity guiding mode, the guiding flat plate and the pushing die head are directly fixed, the materials directly enter the closed cavity to be guided out after being extruded, and therefore the material extrusion efficiency is improved. The volatilization of an organic solvent in the mixed material in the guiding process is prevented.
Description
technical field [0001] The invention relates to the technical field of ePTFE membrane production, in particular to a guide device for continuous production of ePTFE microporous membranes. Background technique [0002] Due to its chemical resistance, thermal stability, high porosity, waterproof and breathable properties, ePTFE microporous membranes have been widely used in space suits, aviation seals, atmospheric dust removal, outdoor clothing, automobiles, water filtration, Bacteria, medical treatment, water filtration, electronics, biomedicine, medical treatment and many other fields. The manufacturing process of ePTFE microporous membrane in the prior art is: ① mixing solvent oil and ePTFE powder, ② aging, ③ blanking, ④ pushing Extrusion, ⑤ Calendering, ⑥ Degreasing, ⑦ Longitudinal stretching, ⑧ Transverse stretching, ⑨ Heat setting, ⑩ Winding 10 processes, of which the paste-like fiber-shaped material pushed out through the pushing die in the fourth step needs to pass thr...
Claims
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IPC IPC(8): B29C48/355B29C48/30B29C43/24
CPCB29C48/355B29C48/0011B29C48/30
Inventor 项朝卫白亚飞赵绪忠徐正琦沈维海李卓钱明亮绪超
Owner 中材科技膜材料(山东)有限公司