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Foamed plastic clearance molding mechanism

A molding mechanism and technology of foam plastics, applied in the field of plastic processing devices, can solve problems such as irregular pores

Active Publication Date: 2015-03-04
遵义市宝海农用物资研发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many pores in foamed plastics, but these pores are often irregular. When regular gaps are required in production and processing, it is difficult to obtain them directly, and secondary processing is required.

Method used

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  • Foamed plastic clearance molding mechanism

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Embodiment Construction

[0011] Such as figure 1 As shown, the foamed plastics gap forming mechanism of the present invention includes a base 1, and a vertical cavity is provided on the base 1, and the cavity includes a lower straight cavity 2, a circular cavity 3 and an upper cavity arranged sequentially from bottom to top. A punch 5 is slidably arranged in the straight chamber 4 and the lower straight chamber 2, and a punch seat is arranged below the punch on the base. A pressure rod 6 is provided in the circular cavity 3 and the upper straight cavity 4, and a pressure pin is provided in the middle part of the pressure rod 6; a roller 61 is hinged on the pressure pin, and a cam 7 is provided in the circular cavity 3, and the roller 61 and the The flanges of the cam 7 are in contact. This arrangement can change sliding friction into rolling friction through the roller 61, reducing damage. The middle section of the depression bar 6 is positioned at the below of the pressure pin and is provided with ...

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PUM

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Abstract

The invention discloses a foamed plastic clearance molding mechanism. A cam is driven to rotate by a driving device, so that a flange of the cam jacks a pressing pin, and a pressing rod provided with the pressing pin slides vertically in a cavity; because a rotation shaft of the cam passes through a groove hole in the pressing rod, the pressing rod cannot interfere with the cam when the pressing rod is in the up-down motion; moreover, because a lower straight cavity is internally provided with a punch in a sliding mode, when the pressing rod moves downward, the bottom of the pressing rod hits the punch by virtue of the gravity action of the pressing rod, and the punch is separated away from the inside of the lower straight cavity under the effect of the pressing rod, and is hit into foamed plastic below the lower straight cavity so as to form a clearance. In the subsequent processing course, a clearance is formed in the foamed plastic permanently so as to meet the requirements for processing and using.

Description

technical field [0001] The invention relates to a plastic processing device, in particular to a foam plastic gap forming mechanism. Background technique [0002] Foam plastic, foam molding. Foam molding is the process of creating a microcellular structure in plastics. Almost all thermosetting and thermoplastic plastics can be made into foam plastics. Commonly used resins are polystyrene, polyurethane, polyvinyl chloride, polyethylene, urea-formaldehyde, phenolic and so on. Foamed plastics have the advantages of less resin consumption in the monomer volume, low thermal conductivity, improved mechanical properties and sound insulation properties, and increased bending tension. Widely used in various fields. There are many pores in foamed plastics, but these pores are often irregular. When regular gaps are required in production and processing, it is difficult to obtain them directly, and secondary processing is required. Contents of the invention [0003] The object of t...

Claims

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Application Information

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IPC IPC(8): B29C44/34
Inventor 王强
Owner 遵义市宝海农用物资研发有限公司