Method for making blowing balloon type multicolor blending EVA shooting foaming product

A production method and product technology, applied in the direction of coating, etc., to achieve the effect of special color and various patterns

Inactive Publication Date: 2008-08-27
广州祥弘塑胶有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing technology can only produce a single color product, because when EVA material is placed in the injection machine, only one color material can be placed, even if a mixture of multiple colors is placed, it will be difficult to melt and knead through

Method used

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  • Method for making blowing balloon type multicolor blending EVA shooting foaming product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Proceed as follows:

[0018] 1. Prepare the required mixture of various colors, whose weight accounts for 30% of the total weight of the required material;

[0019] 2. Bake the mixture in an oven at a temperature of 70 degrees Celsius and a baking time of 40 minutes;

[0020] 3. The obtained multi-color mixture is extruded by manual extrusion;

[0021] 4. Put the baked multi-color mixture into the cavity of the mold and cover the mouth of the feeder, and close the mold;

[0022] 4. The rest of the total required materials are injected into the mold by the injection machine, and the products are formed by heating and curing.

[0023] As shown in Figure 1 and Figure 2, the injection material of the injection machine is concentrated inside the product, and the mixed camouflage material is extended and distributed on the surface of the product to form a multi-color camouflage effect.

[0024] The multi-color mixture is put into the mold after being baked, which can great...

Embodiment 2

[0026] Proceed as follows:

[0027] 1. Prepare the required mixed materials of various colors, the amount of which accounts for 50% of the total required materials;

[0028] 2. Bake the mixture in an oven at a temperature of 95 degrees Celsius and a baking time of 30 minutes; press 6kg of the mixture to exhaust it by mechanical extrusion;

[0029] 3. Put the baked multi-color mixture into the cavity of the mold and cover the mouth of the feeder, and close the mold;

[0030] 4. The rest of the total required materials are injected into the mold by the injection machine, and the products are formed by heating and curing.

Embodiment 3

[0032] Proceed as follows:

[0033] 1. Prepare the required mixed materials of various colors, the amount of which accounts for 70% of the total required materials;

[0034] 2. Bake the mixture in an oven, the baking temperature range is 120 degrees Celsius, and the baking time is 20 minutes; the obtained mixture is extruded by mechanical extrusion according to 10kg;

[0035] 3. Put the baked multi-color mixture into the cavity of the mold and cover the mouth of the feeder, and close the mold;

[0036] 4. The rest of the total required materials are injected into the mold by the injection machine, and the products are formed by heating and curing.

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PUM

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Abstract

A method for producing a multicolor camouflage EVA bubble-ejecting product of balloon-blowing type comprises the following steps: 1. preparing a mixed material of multiple colors, the weight of which accounts for 30% to 70% of that of the total materials needed; 2. baking the mixed material in an oven at the temperature ranging from 70 DEG C to 120 DEG C for 20 to 40 minutes, and after baking, pressing the mixed material of multiple colors for gas exhausting under the pressure of 2 to 10kg; 3. putting the baked mixed material of multiple colors into the inner cavity of a mold and covering the matched molds of the feeder opening; 4. ejecting the rest of the total materials needed into the mold with an ejector, and curing for molding through heating. The method utilizes prior ejectors and molds to make products of various colors and patterns without the need to remold the molds.

Description

1. Technical field [0001] The invention relates to a method for making EVA products by using an EVA injection machine and an injection mold, especially a method for making multi-color camouflage EVA products. 2. Background technology [0002] The known EVA injection foaming technology is to utilize the injection machine to melt the raw materials, inject them into the mold, heat and ripen them, and then open the mold to produce EVA products. The existing technology can only produce a single color product, because when EVA material is placed in the injection machine, only one color material can be placed, even if a mixture of multiple colors is placed, it will be difficult to melt and knead through the material tube of the injection machine. It becomes one color. Therefore, if you want to make camouflage EVA products of various colors, it is impossible to realize the method of injecting material into the mold with the existing general injection machine. Many manufacturers wi...

Claims

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Application Information

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IPC IPC(8): B29C45/14B29C45/16B29B13/02B29B13/00B29K31/00
Inventor 陈鸿文
Owner 广州祥弘塑胶有限公司
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