Low-cost manufacture method of high-quality diaphragm and filter plate

A manufacturing method and high-quality technology, applied in the direction of household components, household appliances, and other household appliances, can solve the problems of high clamping force of the press, high injection molding power, and high mold cost, so as to reduce injection molding costs and increase molding density. , stable and reliable quality

Inactive Publication Date: 2009-04-29
朱兴源
View PDF2 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The fly in the ointment of the above-mentioned background technology is: first, the production of the above-mentioned plastic diaphragm or filter plate needs to adopt the hot runner mold, in the large-scale mold, the heat flow guide nozzle needs more, and the mold cost is high; The higher the injection molding power is, the higher the clamping force of the press is, and the resource requirements are higher; the third is to make the plastic fluidity better, and the required material temperature is relatively high. Well, easy to cause plastic aging

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Low-cost manufacture method of high-quality diaphragm and filter plate
  • Low-cost manufacture method of high-quality diaphragm and filter plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Embodiment 1: with reference to attached figure 1 and 2 . A low-pressure manufacturing method for high-quality diaphragms and filter plates, (1) There is a large gap 3 between the cavity of the lower die 1 and the cavity of the upper die 5 for manufacturing the diaphragm or filter plate, and the surroundings of the gap 3 can be in a closed state, That is to say, between the mold cavity of the lower mold 1 and the upper mold 2, depending on the thickness and size of the product, there is a gap of more than 6-16mm, and the distance around the distance forms a sealed (or not completely sealed) mold with the lower mold 1 and the upper mold 5. Cavity 3, under the situation that can not leak molten plastic body to outside mold frame; (2) then the plastics of molten state in injection molding machine cylinder 6 is quantitatively low pressure ( far lower than the conventional injection pressure of 70MPa) into the cavity 3 formed by the lower mold 1 and the upper mold 5 (the i...

Embodiment 2

[0019] Example 2: A low-cost manufacturing method for high-quality diaphragms and filter plates. Quantitative injection of molten plastic into the mold cavity between the lower mold and the upper mold leaves a large distance and the surrounding distance can be in a closed or nearly closed state. Using the upper and lower The parallel surface accuracy of the mold is used as the precision of controlling the parallelism and thickness of the product or as the control precision of the parallelism and depth of the filter chamber, and then the upper mold and the lower mold are completely closed under the action of external force, and the diaphragm in the mold cavity or After the filter plate is cooled, open the mold and take out the diaphragm or filter plate. When the compactness of the manufactured diaphragm or filter plate does not meet the requirements, the cavity can be repaired by constant pressure plastic repair or pressurized plastic repair, and the plastic repair device can us...

Embodiment 3

[0020]Embodiment 3: On the basis of embodiment 2, utilize the press machine itself and mold and the melted plastic of precise quantity, control the precision of product parallelism and thickness or the precision of the parallelism of filter chamber and depth, that is to say, by controlling The working accuracy of the hydraulic press, the accuracy of the mold itself and the amount of injection molding are used to control the accuracy of the parallelism and thickness of the product or the accuracy of the parallelism and depth of the filter chamber.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a manufacture method of a diaphragm or a filter plate, with low cost and high precision. When a larger die cavity space is left between an upper die and a lower die used for manufacturing the diaphragm or the filter plate, plastics in molten state in an infection machine charging barrel is quantitatively injected into the large die cavity formed by the upper die and the lower die of the die cavity under low pressure through the flow passage in the upper die or the lower die. Then, the periphery of the upper die and the lower die are treated with complete die-closing in closed state under the action of external force, and after the diaphragm or the filter plate in the die cavity is cooled down, the die is opened and the diaphragm or the filter plate is taken out. The method has the advantages that not only the plasticized plastics in the plastic diaphragm cavity are homogeneously extruded to every part of the cavity to be shaped, but also the low-pressure injection molding of the plastics diaphragm is realized and the demand for the mold locking tonnage of a press is reduced, therefore, resource waste and energy consumption are avoided. The method can be suitable not only for thermoplastics and thermosetting plastics, but also for plastic alloy, blending material, recycled thermoplastics, and the like, therefore, the regeneration and reutilization of the resources can be realized.

Description

technical field [0001] The invention relates to a low-cost manufacturing method of a high-quality diaphragm and a filter plate capable of effectively saving resources and producing high-quality diaphragms or filter plates, belonging to the field of filter press diaphragm and filter plate manufacturing. Background technique [0002] The applicant owns CN100360296C, titled "A Method for Forming a Plastic Filter Plate". The filter plate forming mold is located in the hydraulic press and is clamped and opened by the hydraulic press. The hot runner opening of the hot runner plastic filter plate forming mold is located in the hot runner plastic filter plate. On the upper part or bottom or side of the mold, the discharge port of the injection molding mechanism is aligned with the hot runner port, and the hydraulic press is closed. After the plastic raw material is heated and plasticized by the injection molding mechanism, its discharge port passes through the hot runner in the hot r...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/56B29C45/26B29C45/27B29C45/77B29C45/14B29C45/76B29C45/40B29C45/54B29C45/17B29C43/02B29C43/54B29C43/58B29L31/14
Inventor 朱兴源
Owner 朱兴源
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap