阅读说明：本技术 一种橡胶鞋底的制造工艺 (Manufacturing process of rubber sole ) 是由 章晓达 于 2019-10-31 设计创作，主要内容包括：本发明公开了一种橡胶鞋底的制造工艺,涉及橡胶鞋底相关技术领域,包括以下步骤：步骤一：备料、步骤二：塑炼、步骤三：二次塑炼、步骤四：原料密炼、步骤五：入模、步骤六：成型、步骤七：成品。本发明还公开了一种橡胶鞋底模具用顶出装置,包括上模具,上模具的下表面设置有下模具,的下模具的上表面中部开设有型腔,下模具的上表面一侧边缘处中部开设有回力槽,回力槽的内部设置有压板。本发明通过将制胶原料进行反复薄通,能够有效提高胶料的可塑度,从而提高胶料的回弹性,大大提高了制得成品的柔韧性,也会使舒适度提高一个层次,通过在下模具上设置回力槽,为压板提供了有利的活动空间。(The invention discloses a manufacturing process of a rubber sole, which relates to the related technical field of rubber soles and comprises the following steps: the method comprises the following steps: preparing materials and step two: plasticating, and step three: secondary plastication, step four: banburying raw materials, and step five: entering a mold, and a sixth step: forming and a seventh step: and (5) finishing. The invention also discloses an ejection device for the rubber sole mold, which comprises an upper mold, wherein a lower mold is arranged on the lower surface of the upper mold, a cavity is formed in the middle of the upper surface of the lower mold, a return groove is formed in the middle of the edge of one side of the upper surface of the lower mold, and a pressing plate is arranged inside the return groove. According to the invention, the rubber material is repeatedly thinned, so that the plasticity of the rubber material can be effectively improved, the resilience of the rubber material is improved, the flexibility of the finished product is greatly improved, the comfort level is also improved by one level, and a favorable movement space is provided for the pressing plate by arranging the return groove on the lower die.)

1. The manufacturing process of the rubber sole is characterized by comprising the following steps:

the method comprises the following steps: preparing materials (in parts by weight): 45-55 parts of butadiene rubber, 20-25 parts of ethylene propylene diene monomer, 6-12 parts of nitrile rubber, 5-10 parts of methyl methacrylate, 3-4 parts of zinc oxide, 3-6 parts of stearic acid, 3-6 parts of graphene, 1.2-1.4 parts of an accelerator, 40-50 parts of white carbon black, 10-20 parts of paraffin oil and 1-3 parts of sulfur;

step two: plasticating: placing butadiene rubber, ethylene propylene diene monomer rubber and nitrile rubber into an open mill for plastication, ensuring the roll spacing of the open mill to be below 1mm, plasticating for 3-5min, and thinly passing for 2-3 times;

step three: secondary plastication: placing the plasticated rubber material into an open mill again for plastication, ensuring the roll spacing of the open mill to be below 1mm, plasticating for 8-10min, and performing thin passing for 4-6 times to obtain a semi-finished mixed rubber material;

step four: banburying of raw materials: adding the mixed rubber material, methyl methacrylate, zinc oxide, stearic acid, graphene, an accelerator, white carbon black, paraffin oil and sulfur into an internal mixer together, wherein the internal mixing time is 15-20min, so as to prepare a finished product mixed rubber material;

step five: entering a mold: filling the prepared mixed rubber material into an injector, then injecting the mixed rubber material into a lower die through the injector, and closing the die;

step six: molding: placing the mold into a pressure table for vulcanization for 4-6 minutes at the vulcanization temperature of 140-155 ℃;

step seven: and (3) finished product: and taking out the mold, then opening the mold, and taking out the finished product sole.

2. The process for manufacturing a rubber sole according to claim 1, wherein:

preparing materials in the step one: 45 parts of butadiene rubber, 20 parts of ethylene propylene diene monomer, 6 parts of nitrile rubber, 5 parts of methyl methacrylate, 3 parts of zinc oxide, 3 parts of stearic acid, 3 parts of graphene, 1.2 parts of an accelerator, 40 parts of white carbon black, 10 parts of paraffin oil and 1 part of sulfur.

3. The process for manufacturing a rubber sole according to claim 1, wherein:

preparing materials in the step one: 55 parts of butadiene rubber, 25 parts of ethylene propylene diene monomer, 12 parts of nitrile rubber, 10 parts of methyl methacrylate, 4 parts of zinc oxide, 6 parts of stearic acid, 6 parts of graphene, 1.4 parts of an accelerator, 50 parts of white carbon black, 20 parts of paraffin oil and 3 parts of sulfur.

4. The utility model provides a rubber sole is ejecting device for mould, includes mould (1), its characterized in that: the lower surface of the upper die (1) is provided with a lower die (2), the middle of the upper surface of the lower die (2) is provided with a cavity (3), the middle of the edge of one side of the upper surface of the lower die (2) is provided with a return groove (4), a pressing plate (5) is arranged inside the return groove (4), and the middle of the lower surface of the pressing plate (5) is fixedly connected with a pressing rod (6).

5. The ejector device for the rubber shoe sole mold according to claim 4, wherein:

the lower end of one side of the pressure lever (6) is fixedly connected with a first filing tooth (7);

the outer side of the top of the pressure lever (6) is sleeved with a return spring (8).

6. The ejector device for the rubber shoe sole mold according to claim 4, wherein:

one side of the compression bar (6) is connected with a power gear (9) through a first filing tooth (7) in a meshing manner;

one side of the power gear (9) is connected with a mandril (11) through a second filing tooth (10) in a meshing way.

7. The ejector device for the rubber shoe sole mold according to claim 6, wherein:

the top end of the ejector rod (11) is fixedly connected with an ejector plate (12);

the lower end of one side of the ejector rod (11) is fixedly connected with one end of the second filing tooth (10).

8. The ejector device for the rubber shoe sole mold according to claim 4, wherein:

two sides of the interior of the lower die (2) are both provided with movable cavities (13);

the inner walls of two sides of the movable cavity (13) are respectively attached to one side of the pressure lever (6) and one side of the ejector rod (11) far away from the power gear (9).

9. The ejector device for the rubber shoe sole mold according to claim 4, wherein:

a handle (14) is fixedly connected to the middle part of one side of the upper die (1);

a connecting rod (16) is movably connected between the upper die (1) and the lower die (2).

10. The ejector device for rubber shoe sole molds according to claim 9, wherein:

both ends of the connecting rod (16) are movably connected with fixing pieces (15) through pin shafts;

and the two fixing pieces (15) are respectively and fixedly connected with the upper die (1) and the lower die (2).

Technical Field

The invention relates to the technical field of rubber soles, in particular to a manufacturing process of a rubber sole.

Background

The rubber sole is made of rubber, the rubber sole material can be roughly divided into natural rubber or artificial synthetic rubber, the natural rubber has the advantages that the rubber sole is very soft, the elasticity is excellent, the rubber sole can be suitable for various sports and plays a role in shock absorption, but the rubber sole has the obvious defect that the rubber sole is not wear-resistant. The indoor sports shoes are made of natural rubber.

At present, the flexibility of the existing rubber sole is not strong enough, and the sole can crack after long-term use, so that the damage speed of the sole is accelerated, the existing rubber sole rubber material needs to be manually taken out of a mold after being vulcanized, the labor intensity of workers is increased by long-time repeated operation, and the work efficiency is reduced.

Therefore, it is necessary to provide a manufacturing process of rubber soles to solve the above problems.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a manufacturing process of a rubber sole, which solves the problems that the existing rubber sole is not strong enough in flexibility and can crack the sole after being used for a long time, so that the damage speed of the sole is increased, and the existing rubber sole needs to be manually taken out from a mold after rubber materials of the existing rubber sole are vulcanized, so that the labor intensity of workers is increased through long-time repeated operation, and the working efficiency is reduced.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: a manufacturing process of a rubber sole comprises the following steps:

the method comprises the following steps: preparing materials (in parts by weight): 45-55 parts of butadiene rubber, 20-25 parts of ethylene propylene diene monomer, 6-12 parts of nitrile rubber, 5-10 parts of methyl methacrylate, 3-4 parts of zinc oxide, 3-6 parts of stearic acid, 3-6 parts of graphene, 1.2-1.4 parts of an accelerator, 40-50 parts of white carbon black, 10-20 parts of paraffin oil and 1-3 parts of sulfur;

step two: plasticating: placing butadiene rubber, ethylene propylene diene monomer rubber and nitrile rubber into an open mill for plastication, ensuring the roll spacing of the open mill to be below 1mm, plasticating for 3-5min, and thinly passing for 2-3 times;

step three: secondary plastication: placing the plasticated rubber material into an open mill again for plastication, ensuring the roll spacing of the open mill to be below 1mm, plasticating for 8-10min, and performing thin passing for 4-6 times to obtain a semi-finished mixed rubber material;

step four: banburying of raw materials: adding the mixed rubber material, methyl methacrylate, zinc oxide, stearic acid, graphene, an accelerator, white carbon black, paraffin oil and sulfur into an internal mixer together, wherein the internal mixing time is 15-20min, so as to prepare a finished product mixed rubber material;

step five: entering a mold: filling the prepared mixed rubber material into an injector, then injecting the mixed rubber material into a lower die through the injector, and closing the die;

step six: molding: placing the mold into a pressure table for vulcanization for 4-6 minutes at the vulcanization temperature of 140-155 ℃;

step seven: and (3) finished product: and taking out the mold, then opening the mold, and taking out the finished product sole.

Optionally, preparing materials in the step one: 45 parts of butadiene rubber, 20 parts of ethylene propylene diene monomer, 6 parts of nitrile rubber, 5 parts of methyl methacrylate, 3 parts of zinc oxide, 3 parts of stearic acid, 3 parts of graphene, 1.2 parts of an accelerator, 40 parts of white carbon black, 10 parts of paraffin oil and 1 part of sulfur.

Optionally, preparing materials in the step one: 55 parts of butadiene rubber, 25 parts of ethylene propylene diene monomer, 12 parts of nitrile rubber, 10 parts of methyl methacrylate, 4 parts of zinc oxide, 6 parts of stearic acid, 6 parts of graphene, 1.4 parts of an accelerator, 50 parts of white carbon black, 20 parts of paraffin oil and 3 parts of sulfur.

The utility model provides a rubber sole ejecting device for mould, includes the mould, the lower surface of going up the mould is provided with the bed die, the upper surface middle part of bed die seted up the die cavity, return force groove has been seted up at upper surface one side edge middle part of bed die, the inside in return force groove is provided with the clamp plate, the lower surface middle part fixedly connected with depression bar of clamp plate.

Optionally, the lower end of one side of the pressure lever is fixedly connected with a first filing tooth;

the outer side of the top of the pressure lever is sleeved with a return spring.

Optionally, one side of the pressure lever is connected with a power gear through a first filing tooth in a meshing manner;

one side of the power gear is connected with a mandril through the meshing of second filing teeth.

Optionally, the top end of the ejector rod is fixedly connected with an ejector plate;

the lower end of one side of the ejector rod is fixedly connected with one end of the second filing tooth.

Optionally, two sides of the interior of the lower die are both provided with movable cavities;

the inner walls of the two sides of the movable cavity are respectively attached to one side, away from the power gear, of the pressing rod and the ejector rod.

Optionally, a handle is fixedly connected to the middle part of one side of the upper die;

a connecting rod is movably connected between the upper die and the lower die;

optionally, both ends of the connecting rod are movably connected with fixing pieces through pin shafts;

and the two fixing pieces are respectively and fixedly connected with the upper die and the lower die.

(III) advantageous effects

The invention provides a manufacturing process of a rubber sole, which has the following beneficial effects:

(1) according to the invention, the rubber material is repeatedly thinned, so that the plasticity of the rubber material can be effectively improved, the resilience of the rubber material is improved, the flexibility of the prepared finished product is greatly improved, and the comfort level is also improved by one level.

(2) The lower die is provided with the return force groove, so that a favorable moving space is provided for the pressing plate, the pressing plate can be automatically reset by arranging the return force spring in the return force groove, the power gear can be rotated by pressing the pressing plate under the action of the first file tooth, the ejector rod and the ejector plate can be driven to ascend by matching the power gear and the second file tooth, the sole is ejected out of the cavity through the ejector plate, and the mechanism can effectively reduce the labor intensity of workers and obviously improve the working efficiency.

Drawings

FIG. 1 is a partial cross-sectional view of the structure of the present invention.

FIG. 2 is a schematic side view of the structure of the present invention.

Fig. 3 is a perspective view of the structure of the lower mold of the present invention.

In the figure: 1. an upper die; 2. a lower die; 3. a cavity; 4. a force returning groove; 5. pressing a plate; 6. a pressure lever; 7. a first filing tooth; 8. a return spring; 9. a power gear; 10. a second filing tooth; 11. a top rod; 12. ejecting the plate; 13. a movable cavity; 14. a handle; 15. a fixing member; 16. a connecting rod; 17. a through groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

In the present invention, unless otherwise expressly specified or limited, the terms "disposed," "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected or detachably connected; may be a mechanical connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.