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High-elastic double-density in-mold foamed rubber sole and production process thereof

A technology of foam rubber and double density, which is applied to shoe soles, footwear, footwear, etc., can solve the problems of insufficient elasticity, high cost, time-consuming, etc., and achieve the effect of increasing elasticity, high bonding strength, and good composite effect

Inactive Publication Date: 2019-03-19
ANHUI GVG NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In order to overcome the problems of insufficient elasticity of the rubber sole in the prior art, separate injection, foaming and vulcanization of the double-density sole, energy consumption, time-consuming and high cost, the present invention provides a high-elasticity double-density in-mold foamed rubber sole and its production process

Method used

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  • High-elastic double-density in-mold foamed rubber sole and production process thereof
  • High-elastic double-density in-mold foamed rubber sole and production process thereof
  • High-elastic double-density in-mold foamed rubber sole and production process thereof

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Comparison scheme
Effect test

Embodiment 1

[0055] The high-elasticity dual-density in-mold foamed rubber sole of this embodiment, such as figure 1 , 2As shown in the figure, it includes a high-density outer layer 61 and a low-density inner layer 62, and is an integrated structure that is ejected from the same mold; the high-density outer layer 61 and the low-density inner layer 62 are made of high-density rubber compound and low-density material respectively. The low-density inner layer 62 is also embedded with a vertical spring support 63 evenly.

[0056] The component formula of the low-density rubber compound and its respective parts by weight include: 40-50 of solution-polymerized styrene-butadiene rubber, 15-25 of natural rubber, 5-10 of fumed silica, 7-12 of isoprene rubber, and 7-12 of naphthenic oil. 11. Stearic acid 0.5-1.5, zinc oxide 1-5, 120 resin 3-8, dicumyl peroxide 0.1-0.3; high-density sizing material component formula and their respective weight parts include: compound rubber 35-45 , reclaimed rubbe...

Embodiment 2

[0060] The high-elasticity dual-density in-mold foamed rubber sole of the present embodiment has the same basic structure as that of Embodiment 1, and the improvements are as follows: image 3 , 4 As shown, the compression molding and foaming vulcanization device 3 includes a mold clamping cylinder 31, an upper mold half 33, a lower mold half 34, a mold inner core 35, a mold inner core 2 36 and a mold core rotating cylinder 39; the lower half mold The mold 34 is fixed on the die vulcanization table 5, and the upper mold half 33 is matched with the upper mold half 33 directly above the lower mold half 34. The upper mold half 33 is detachably connected to the mold clamping cylinder 31; the mold clamping cylinder 31 passes through the fixing frame Fixed; the mold inner core 1 35 and the mold inner core 2 36 have the same shape and different specifications, and the tail ends of the two are opposite to each other, and both are detachable and fixed with the mold core conversion brac...

Embodiment 3

[0079] The high-elasticity double-density in-mold foamed rubber sole of the present embodiment has the same basic structure as that of embodiment 2, and the improvement is as follows: figure 1 , 2 As shown, the end of the spring support 63 is fixed with a connecting plate 64, which is convenient for the presetting and fixing of the spring support 63 in the mold synchronously. Presetting the spring support 63 before the rubber is vulcanized can effectively improve the combination of the spring support 63 and the rubber. Strength, the rubber can be embedded in the gap of the spring, can fluctuate synchronously with the elasticity of the spring, and play the role of skeleton support. The same mold is produced, the bonding strength of the spring and the rubber is high, and the composite effect is good. The elasticity of the spring can be selected to be consistent with the elasticity of the low-density rubber layer. In order to strengthen the support strength of the low-density inn...

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Abstract

The invention discloses a high-elastic double-density in-mold foamed rubber sole and a production process thereof, and belongs to the technical field of rubber products. The rubber sole comprises a high-density outer layer and a low-density inner layer and is an integrated structure molded with a same mold; the high-density outer layer is made from high-density rubber, the low-density inner layeris made from low-density rubber, spring supports in a vertical state are buried in the low-density inner layer to achieve the functions of framework supporting, massage and healthcare, and the elasticity of springs can be selected to be consistent with that of the low-density rubber to strengthen the supporting strength of the low-density inner layer. The rubber sole is prepared by performing double-density rubber two-way injection, foaming and vulcanization in the mold by applying a double-density two-way injection in-mold foaming molding-vulcanization production system, and the problems aresolved that the elasticity of the rubber sole is insufficient, and separate operation of injection, foaming and vulcanization of the double-density sole consumes energy and time and is high in cost.

Description

technical field [0001] The invention belongs to the technical field of rubber products, and in particular relates to a high-elasticity double-density foamed rubber sole in a mold and a production process thereof. Background technique [0002] Shoes are an indispensable necessity in daily life. According to different functions and appearances, there are various types on the market. However, no matter how the appearance of shoes changes, the most important thing is to wear them comfortably and provide sufficient protection for the feet. important. Modern people often need to walk or stand for a long time, whether for work or leisure, and the feet support the entire weight of the human body. After a long time of use, the feet are prone to soreness and even plantar fasciitis. Therefore, a pair of Comfortable shoes are the best aid. [0003] Rubber soles are widely used in sports shoes and leather shoes, and have also been recognized. In order to reduce costs and weight, the in...

Claims

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Application Information

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IPC IPC(8): A43B13/12A43B13/04A43B13/18B29D35/14C08L9/06C08L7/00C08K13/02C08K3/36C08K5/09C08K3/22
CPCA43B13/04A43B13/12A43B13/182A43B13/187B29D35/142C08K2003/2296C08L9/06C08L7/00C08K13/02C08K3/36C08K5/09C08K3/22
Inventor 黎广叶孙勇葛九敢赵正唐帆蒋水金强金凤陶克军路丽珠徐梦
Owner ANHUI GVG NEW MATERIAL CO LTD
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