Polyurethane foaming device

A foaming device and polyurethane technology, applied in the field of polyurethane foaming devices, can solve the problems of inconsistent reaction of mixtures, increased rejection rate, easy delamination and cracking, etc., and achieve the effect of improving product quality and avoiding material leakage.

Inactive Publication Date: 2012-02-15
LIYANG SHANHU IND CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the general foaming process of automotive interior polyurethane (PU) substrates is to mix the raw materials through the injection system and then inject them into the foam box along the side wall of the foam box. The mixture flows and disperses at the bottom of the foam box, usually mixing The injection time of the material is about 20 seconds. Due to the fast reaction speed of the mixture, the reactions of the successively injected mixtures are inconsistent, and the mixtures with different reaction degrees are superimposed along the flow direction, and the superimposed parts are easy to delaminate and crack, and the scrap rate increases.

Method used

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  • Polyurethane foaming device
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Embodiment Construction

[0011] like figure 1 The polyurethane foaming device shown includes a foaming box 1 and an iron mixing tank 2 with openings at both ends. The diameter of the upper opening of the iron mixing tank 2 is greater than the diameter of the lower opening. There is a rubber gasket 7, and a handle 4 is provided on the barrel wall of the iron mixing bucket 2; the iron mixing bucket 2 is placed in the foam box 1, and the rubber gasket 7 is in close contact with the bottom of the foam box 1.

[0012] In addition, in order to prevent raw materials from splashing out of the iron mixing tank 2, the upper opening of the iron mixing tank 2 is equipped with a bucket cover, and the middle part of the bucket cover is provided with an injection hole; in order to facilitate the movement of the foaming box 1, the bottom of the foaming box 1 is installed There are 5 moving wheels.

[0013] The device is used in conjunction with the injection system 3, which is a commonly used device in the existing ...

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Abstract

The invention relates to a polyurethane foaming device which comprises a foaming box and a metal mixing barrel with two open ends; an edge is arranged on the opening on the lower end of the metal mixing barrel, a rubber washer is installed at the lower side of the edge, and a lifting handle is arranged on the wall of the metal mixing barrel; the metal mixing barrel is arranged in the foaming box, and the rubber washer is in firm contact with the bottom of the foaming box. A mixed material is injected to the metal mixing barrel, and the mixed material is mixed in the metal mixing barrel again by the impact of the injection, the metal mixing barrel is lifted up after the injection operation, and the mixed material naturally flows to the foaming box to be foamed. The polyurethane foaming device is used for solving the problems of layering, cracking and non-uniform distribution caused by overlapping mixed materials with different reaction times and improving the quality of the product; and due to the weight of the metal mixing barrel, the rubber washer can be in tight contact with the bottom of the foaming box to avoid the material leakage phenomenon in the injection process.

Description

technical field [0001] The invention relates to a polyurethane foaming device. Background technique [0002] At present, the general foaming process of automotive interior polyurethane (PU) substrates is to mix the raw materials through the injection system and then inject them into the foam box along the side wall of the foam box. The mixture flows and disperses at the bottom of the foam box, usually mixing The injection time of the material is about 20 seconds. Due to the fast reaction speed of the mixture, the reactions of the successively injected mixtures are inconsistent, and the mixtures with different reaction degrees are superimposed along the flow direction, and the superimposed parts are easy to delaminate and crack, and the reject rate increases. Contents of the invention [0003] The object of the present invention is to provide a polyurethane foaming device. [0004] The technical scheme of the present invention is: a polyurethane foaming device, including a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C44/40B29K75/00
Inventor 李田生
Owner LIYANG SHANHU IND CO LTD
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