阅读说明：本技术 一种3d物理发泡鞋大底及其制造工艺 (3D physical foaming shoe outsole and manufacturing process thereof ) 是由 蓝世梁 于 2021-08-11 设计创作，主要内容包括：本发明涉及一种3D物理发泡鞋大底及其制造工艺,按照以下步骤进行,①将多种不同颜色的发泡原材料送入模具内成型出多层鞋底模胚；②物理发泡,将多个多层鞋底模胚放到置物架上,把置物架送入反应釜中,多层鞋底模胚受热快速膨胀发泡制得多层颜色的鞋大底；③逐级降温,烘干机对鞋大底进行第一级降温,冷却机对鞋大底进行第二级降温；④定型,将鞋大底放入定型盒内,往鞋大底表面放上鞋楦,工艺步骤设计合理,物理发泡制得鞋大底无需用到发泡剂保证鞋大底无毒,而逐级降温工序能有效避免从反应釜刚出来的鞋大底因温降太大导致大变形,而最后的定型保证鞋大底最终成型形状满足设计尺寸要求,实现快速生产多色3D物理发泡鞋大底的目的。(The invention relates to a 3D physical foaming shoe outsole and a manufacturing process thereof, which comprises the following steps of firstly, feeding foaming raw materials with various colors into a mould to form a multi-layer sole mould blank; secondly, physical foaming, namely putting a plurality of multi-layer sole mould blanks on a storage rack, conveying the storage rack into a reaction kettle, and heating the multi-layer sole mould blanks to rapidly expand and foam to obtain multi-layer color shoe outsoles; the temperature is reduced step by step, the dryer carries out primary temperature reduction on the outsole of the shoe, and the cooler carries out secondary temperature reduction on the outsole of the shoe; and fourthly, shaping, namely putting the outsole into a shaping box, putting the shoe tree on the surface of the outsole, wherein the process steps are reasonable in design, the outsole is prepared by physical foaming without using a foaming agent, so that the outsole is nontoxic, the step-by-step cooling process can effectively avoid the phenomenon that the outsole just coming out of the reaction kettle is greatly deformed due to too large temperature drop, and the final shaping ensures that the final shaping shape of the outsole meets the design size requirement, so that the aim of quickly producing the multicolor 3D physically foamed outsole is fulfilled.)

1. A3D physical foaming shoe outsole manufacturing process is characterized in that: the method comprises the following steps of (1),

firstly, manufacturing a multi-layer sole mould blank, and feeding foaming raw materials with various colors into a mould to form the multi-layer sole mould blank;

secondly, physical foaming, namely putting a plurality of multi-layer sole mould blanks on a storage rack, conveying the storage rack into a reaction kettle, and heating the multi-layer sole mould blanks to rapidly expand and foam to obtain shoe outsoles;

step-by-step cooling, after the storage rack is moved out of the reaction kettle, the outsole is quickly conveyed into a dryer, the dryer carries out first-stage cooling on the outsole, the outsole coming out of the dryer enters a cooler, and the cooler carries out second-stage cooling on the outsole;

and fourthly, shaping, namely putting the outsole into a shaping box, putting a shoe tree on the surface of the outsole, and pressing the shoe tree on the outsole for shaping.

2. The 3D physical foaming shoe outsole manufacturing process of claim 1, wherein: the foaming raw material is fed into the mold by means of placement or injection.

3. The 3D physical foaming shoe outsole manufacturing process of claim 1, wherein: the first-stage cooling temperature of the dryer is set to be 65-80 ℃, and the second-stage cooling temperature of the cooler is set to be 50-60 ℃.

4. The 3D physical foaming shoe outsole manufacturing process of claim 1, wherein: the mould comprises an upper mould, a middle mould and a lower mould, wherein the upper mould and the lower mould are respectively matched with the middle mould, foaming raw materials with one color are fed between the upper mould and the middle mould, foaming raw materials with the other color are fed between the middle mould and the lower mould, the upper part of a sole is formed between the upper mould and the middle mould, the lower part of the sole is formed between the lower mould and the middle mould, then the middle mould is moved out, the upper part of the sole is adhered in the upper mould, the lower part of the sole is adhered in the lower mould, the upper mould and the lower mould are matched, and the upper part of the sole and the lower part of the sole are adhered between the upper mould and the lower mould to form a sole mould blank.

5. The 3D physical foaming shoe outsole manufacturing process of claim 1, wherein: and (3) after the shelf is sent into the reaction kettle, introducing nitrogen and carbon dioxide into the reaction kettle, maintaining the pressure and heat for 1-2 hours, and quickly relieving the pressure to obtain the outsole.

6. The 3D physical foaming shoe outsole manufacturing process of claim 1, wherein: and a balancing weight is arranged above the shoe tree.

7. The utility model provides a 3D physics foaming big end of shoes which characterized in that: the 3D physical foaming shoe outsole is manufactured by the manufacturing process of the 3D physical foaming shoe outsole of any one of claims 1 to 7.

Technical Field

The invention relates to the field of soles, in particular to a 3D physical foaming outsole and a manufacturing process thereof.

Background

Shoes are indispensable articles for daily life of people, the common effect is used for protecting feet from being injured by the external environment and ensuring the safety of walking, along with the improvement of living standard, people have more and more functional requirements on the shoes, common living shoes, labor protection shoes, sports shoes, tourist shoes, heightening shoes, damping shoes and the like appear on the market, partial shops can make soles into two layers of different colors to obtain the effects of beauty, gorgeousness and rich layering in order to better increase the attractiveness of the shoes, the complicated manufacturing process of the existing double-layer soles leads to very long manufacturing time, and the shoe is not beneficial to rapid production.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a 3D physical foaming shoe outsole and a manufacturing process thereof, and the specific technical scheme is as follows:

A3D physical foaming shoe outsole manufacturing process is carried out according to the following steps,

firstly, manufacturing a multi-layer sole mould blank, and feeding foaming raw materials with various colors into a mould to form the multi-layer sole mould blank;

secondly, physical foaming, namely putting a plurality of multi-layer sole mould blanks on a storage rack, conveying the storage rack into a reaction kettle, and heating the multi-layer sole mould blanks to rapidly expand and foam to obtain multi-layer color shoe outsoles;

step-by-step cooling, after the storage rack is moved out of the reaction kettle, the outsole is quickly conveyed into a dryer, the dryer carries out first-stage cooling on the outsole, the outsole coming out of the dryer enters a cooler, and the cooler carries out second-stage cooling on the outsole;

and fourthly, shaping, namely putting the outsole into a shaping box, putting a shoe tree on the surface of the outsole, and pressing the shoe tree on the outsole for shaping.

In a preferred embodiment of the present invention, the foaming material is introduced into the mold by means of pouring or injection.

As a preferred scheme of the invention, the first-stage cooling temperature of the dryer is set to be 65-80 ℃, and the second-stage cooling temperature of the cooler is set to be 50-60 ℃.

As a preferred aspect of the present invention, the mold includes an upper mold, a middle mold, and a lower mold, wherein the upper mold and the lower mold are respectively assembled with the middle mold, a foaming material of one color is fed between the upper mold and the middle mold, a foaming material of another color is fed between the middle mold and the lower mold, a sole upper portion is formed between the upper mold and the middle mold, a sole lower portion is formed between the lower mold and the middle mold, the middle mold is removed, the sole upper portion is adhered to the upper mold, the sole lower portion is adhered to the lower mold, the upper mold and the lower mold are assembled, and the sole upper portion and the sole lower portion are adhered between the upper mold and the lower mold to form a sole mold blank.

As a preferred scheme of the invention, after the commodity shelf is sent into the reaction kettle, nitrogen and carbon dioxide are introduced into the reaction kettle, and after pressure and heat preservation are carried out for 1-2 hours, the sole is quickly decompressed to obtain the outsole.

As a preferable scheme of the present invention, a weight block is placed above the shoe tree.

A3D physical foaming shoe outsole is manufactured by adopting the manufacturing process of the 3D physical foaming shoe outsole.

The invention has the beneficial effects that: the process steps are reasonable in design, the large sole made by physical foaming does not need a foaming agent to ensure that the large sole is nontoxic, the step-by-step cooling process can effectively avoid the large sole just coming out of the reaction kettle from being greatly deformed due to too large temperature reduction, the overall approximate shape of the large sole is ensured, the final shaping ensures that the final forming shape of the large sole meets the design size requirement, and the purpose of rapidly producing the 3D physically foamed large sole is achieved.

Drawings

FIG. 1 is a process flow diagram of the present invention;

FIG. 2 is a schematic illustration of physical foaming according to the present invention;

FIG. 3 is a schematic representation of the operation of the inventive die;

FIG. 4 is a schematic structural view of the setting step of the present invention.

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:

in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the positions or elements referred to must have specific orientations, be constructed and operated in specific orientations, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.

As shown in figures 1-4, a 3D physical foaming shoe outsole manufacturing process is carried out according to the following steps of firstly, manufacturing a multi-layer sole mold blank, and feeding foaming raw materials with various colors into a mold to form the multi-layer sole mold blank; secondly, physical foaming, namely putting a plurality of multi-layer sole mould blanks 1 on a storage rack 2, conveying the storage rack 2 into a reaction kettle 3, and heating the multi-layer sole mould blanks to rapidly expand and foam to obtain shoe outsoles; the temperature is gradually reduced, the large soles are quickly conveyed into a dryer after the storage rack is moved out of the reaction kettle, the dryer is used for carrying out primary temperature reduction on the large soles, the large soles coming out of the dryer enter a cooler, the cooler is used for carrying out secondary temperature reduction on the large soles, and the step-by-step temperature reduction is to avoid large deformation, such as two sides upwarp, of the large soles just coming out of the reaction kettle due to too large temperature reduction; and fourthly, shaping, namely putting the outsole 4 into a shaping box 5, wherein the shaping box 5 is used for shaping the four sides of the outsole, putting a shoe tree 6 on the surface of the outsole 4, placing a balancing weight 7 above the shoe tree 6, preferably, the balancing weight 7 is an iron block to increase pressure, and the shoe tree presses the outsole to be placed for about 15 minutes to prevent the outsole from tilting, so that final shaping is realized.

Specifically, the foaming raw materials are manually placed into a mold or fed into the mold through a material injection gun, the first-stage cooling temperature of a dryer is set to be 65-80 ℃, the second-stage cooling temperature of a cooler is set to be 50-60 ℃, and the shoe outsole is made.

Specifically, the multilayer sole has two colors for the double-layer sole, the mould comprises an upper mould, a middle mould and a lower mould, as shown in figure 3, the upper mould moves down, the lower mould moves up to be respectively matched with the middle mould for the first time, foaming raw materials of one color are sent between the upper mould and the middle mould, foaming raw materials of the other color are sent between the middle mould and the lower mould, the upper part of the sole is formed between the upper mould and the middle mould, the lower part of the sole is formed between the lower mould and the middle mould, then the middle mould is moved out, the upper part of the sole is adhered in the upper mould, the lower part of the sole is adhered in the lower mould, then the upper mould moves down, the lower mould moves up to realize the second matching of the upper mould and the lower mould, and the upper part of the sole and the lower part of the sole are adhered between the upper mould and the lower mould to form a double-layer sole mould blank.

Specifically, after the shelf is sent into a reaction kettle, nitrogen and carbon dioxide are introduced into the reaction kettle, and after pressure maintaining and heat retaining are carried out for 1-2 hours, the sole is quickly decompressed to obtain the outsole.

3D physical foaming shoe outsole prepared by adopting the manufacturing process of the 3D physical foaming shoe outsole

The above description is for the purpose of describing the invention in more detail with reference to specific preferred embodiments, and it should not be construed that the embodiments of the invention are limited to those described herein, and it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention.