CN112339310A - Bonding process for compression molding of rubber outsole and EVA midsole by net film - Google Patents
Bonding process for compression molding of rubber outsole and EVA midsole by net film Download PDFInfo
- Publication number
- CN112339310A CN112339310A CN202011163162.9A CN202011163162A CN112339310A CN 112339310 A CN112339310 A CN 112339310A CN 202011163162 A CN202011163162 A CN 202011163162A CN 112339310 A CN112339310 A CN 112339310A
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- China
- Prior art keywords
- rubber outsole
- bonding
- eva
- net film
- compression molding
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000008569 process Effects 0.000 title claims abstract description 20
- 238000000748 compression moulding Methods 0.000 title claims abstract description 16
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 27
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000009987 spinning Methods 0.000 claims abstract description 16
- 238000004140 cleaning Methods 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000001035 drying Methods 0.000 claims abstract description 10
- 229910000389 calcium phosphate Inorganic materials 0.000 claims abstract description 9
- 239000001506 calcium phosphate Substances 0.000 claims abstract description 9
- 235000011010 calcium phosphates Nutrition 0.000 claims abstract description 9
- 239000008367 deionised water Substances 0.000 claims abstract description 9
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 9
- 238000005488 sandblasting Methods 0.000 claims abstract description 9
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 claims abstract description 9
- 239000000428 dust Substances 0.000 claims abstract description 7
- 239000004519 grease Substances 0.000 claims abstract description 7
- 238000005238 degreasing Methods 0.000 claims abstract description 6
- 238000007788 roughening Methods 0.000 claims abstract description 6
- 238000002156 mixing Methods 0.000 claims abstract description 5
- 238000007723 die pressing method Methods 0.000 claims abstract description 4
- 238000007493 shaping process Methods 0.000 claims abstract description 4
- 238000009966 trimming Methods 0.000 claims abstract description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 9
- 239000004576 sand Substances 0.000 claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 238000005422 blasting Methods 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 6
- 238000004506 ultrasonic cleaning Methods 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000006004 Quartz sand Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 230000007547 defect Effects 0.000 claims description 3
- 238000005098 hot rolling Methods 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000000155 melt Substances 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 230000010355 oscillation Effects 0.000 claims description 3
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 abstract description 12
- 239000000853 adhesive Substances 0.000 abstract description 8
- 230000009471 action Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 239000004831 Hot glue Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D35/00—Producing footwear
- B29D35/12—Producing parts thereof, e.g. soles, heels, uppers, by a moulding technique
- B29D35/14—Multilayered parts
- B29D35/142—Soles
Abstract
The invention discloses a bonding process for compression molding of a net film used for a rubber outsole and an EVA midsole, which comprises the following steps: firstly, slicing and drying; step two, spinning and net making; step three, roughening the surface; step four, cleaning and degreasing; step five, die pressing and bonding; step six, shaping and trimming; the invention carries out sand blasting roughening treatment on the bonding surface of the rubber outsole and the EVA insole, improves the surface adhesive force and the adhesive property of the rubber outsole and the EVA insole, reduces the risk of falling of the net film, avoids the problems of rubber stripping, water leakage and falling of the sole, prolongs the service life of the sole, carries out degreasing treatment by using the cleaning solution prepared by mixing deionized water, ethylene glycol, calcium phosphate and acetone, thoroughly removes dirt such as dust, grease and the like attached to the surfaces of the rubber outsole and the EVA insole, increases the contact area of the net film, improves the adhesive force of the net film, ensures the bonding firmness between the rubber outsole and the EVA insole, and improves the quality of the sole.
Description
Technical Field
The invention relates to the technical field of sole manufacturing, in particular to a bonding process for compression molding of a net film used for a rubber outsole and an EVA midsole.
Background
Shoes are essential in daily life, and are a garment worn on feet to protect the feet and facilitate walking. As the sole with the supporting and protecting functions on the shoe, the process level also determines the overall quality of the shoe to a certain extent. At present, a reticular hot melt adhesive film is mainly used for carrying out mould pressing bonding on a rubber outsole and an EVA midsole in the manufacturing process of a sole to form the sole.
However, the most traditional nethike embrane bonding technology is not to carry out the alligatoring to the adhesive surface of rubber outsole and EVA insole, surface adhesion is low, the adhesion performance is poor, the problem that the nethike embrane drops appears very easily in the use, lead to taking place local or whole separation between rubber outsole and the EVA insole, cause the rubber of sole, leak and drop, the life of sole has been shortened, and the dynamics of washing to rubber outsole and EVA insole is not enough, the contact area of nethike embrane has inevitably been reduced to dirt such as its dirt such as dust and grease that adhere to the surface, the adhesive force of nethike embrane has been weakened, the adhesive effect between rubber outsole and the EVA insole has been influenced, the quality of sole has been reduced.
Disclosure of Invention
The invention aims to provide a bonding process for compression molding of a net film used for a rubber outsole and an EVA midsole, so as to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: a bonding process for compression molding of a net film used for a rubber outsole and an EVA midsole comprises the following steps: firstly, slicing and drying; step two, spinning and net making; step three, roughening the surface; step four, cleaning and degreasing; step five, die pressing and bonding; step six, shaping and trimming;
in the first step, the raw materials are placed on a slicing machine, the raw materials are cut into pieces with uniform sizes, the pieces are poured into a drum dryer, high-speed hot air flow is introduced to impact and stir the pieces, and redundant moisture on the pieces is evaporated;
pouring the dried material sheet in the step one into a screw extruder, heating at high temperature, melting into a melt, quantitatively injecting into a spinning machine through a metering pump, and preparing into a net film in a prefabricated shape after spinning, cooling, drafting, dividing, swinging, lapping, hot rolling, winding and slitting;
in the third step, the prefabricated rubber outsole and the EVA midsole are placed in a sand blasting machine, and the blasting material impacts the bonding surface of the rubber outsole and the EVA midsole at a high speed through jet air flow to prepare a roughened rubber outsole and a roughened EVA midsole with rough bonding surfaces;
in the fourth step, the coarsened rubber outsole and the coarsened EVA insole which are coarsened in the third step are put into an ultrasonic cleaning machine, and a proper amount of cleaning fluid is added, dirt such as dust, grease and the like attached to the surfaces of the coarsened rubber outsole and the coarsened EVA insole is thoroughly removed through ultrasonic oscillation, and a clean rubber outsole and a clean EVA insole are prepared;
placing the clean rubber outsole cleaned in the fourth step into a lower die of a die press, laying the net film prepared in the second step on the bonding surface of the clean rubber outsole, then placing an upper die of a clean EVA insole die press into an upper die of the die press, and bonding the clean rubber outsole and the clean EVA insole into a whole through the net film after die assembly, heating, cooling and die opening to obtain a sole blank;
and step six, placing the sole blank prepared in the step five on an edge trimmer, removing the defects such as burrs, flashes and the like, and then preparing a finished sole product in a prefabricated shape.
According to the technical scheme, in the first step, the drying temperature of the rotary drum dryer is 120-150 ℃, and the drying time is 12-20 hours.
According to the technical scheme, in the second step, the screw extruder is a double-screw extruder, and the operating temperature is 185-235 ℃.
According to the technical scheme, in the second step, the spinning diameter of the spinning machine is 0.8-1.4 mm, and the cooling temperature is 13-16 ℃.
According to the technical scheme, in the third step, the blasting material of the sand blasting machine is any one of quartz sand, carborundum, Hainan sand, copper ore sand and iron sand.
According to the technical scheme, in the fourth step, the operating frequency of the ultrasonic cleaning machine is 5-13 kHz, and the cleaning time is 10-20 min.
According to the technical scheme, in the fourth step, the cleaning solution is prepared by mixing deionized water, ethylene glycol, calcium phosphate and acetone, and the weight ratio of the deionized water to the ethylene glycol to the calcium phosphate to the acetone is 98: 3: 1: 2.
According to the technical scheme, in the fifth step, the heating temperature of the molding press is 190-210 ℃, and the cooling temperature is 15-20 ℃.
Compared with the prior art, the invention has the following beneficial effects: the net film is used for a bonding process for compression molding of the rubber outsole and the EVA insole, and the bonding surface of the rubber outsole and the EVA insole is roughened by sand blasting, so that the surface adhesive force and the adhesive property of the rubber outsole and the EVA insole are improved, the risk of falling of the net film is reduced, the problems of rubber stripping, water leakage and falling of the sole are avoided, and the service life of the sole is prolonged; through preparing into the washing liquid with deionized water, ethylene glycol, calcium phosphate and acetone to cooperate ultrasonic cleaner to carry out the degrease processing to rubber outsole and EVA insole, thereby thoroughly clear away dirt such as the adnexed dust in rubber outsole and EVA insole surface and grease, increased the area of contact of nethike embrane, improved the adhesive force of nethike embrane, ensured the fastness of bonding between rubber outsole and the EVA insole, promoted the quality of sole.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a process flow diagram of the present invention.
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.
Referring to fig. 1, the present invention provides a technical solution: a bonding process for compression molding of a net film used for a rubber outsole and an EVA midsole comprises the following steps: firstly, slicing and drying; step two, spinning and net making; step three, roughening the surface; step four, cleaning and degreasing; step five, die pressing and bonding; step six, shaping and trimming;
in the first step, the raw materials are placed on a slicing machine, the raw materials are cut into pieces with uniform sizes, the pieces are poured into a drum dryer, high-speed hot air flow is introduced to impact and stir the pieces, redundant moisture on the pieces is evaporated, the drying temperature of the drum dryer is 120-150 ℃, and the drying time is 12-20 hours;
pouring the dried material sheet in the step one into a screw extruder, heating at high temperature and melting to form a melt, wherein the screw extruder is a double-screw extruder, the operation temperature is 185-235 ℃, then quantitatively injecting the material sheet into a spinning machine through a metering pump, and preparing a net film in a prefabricated shape after spinning, cooling, drafting, splitting, swinging, laying, hot rolling, winding and slitting, the spinning diameter of the spinning machine is 0.8-1.4 mm, and the cooling temperature is 13-16 ℃;
in the third step, the prefabricated rubber outsole and the EVA midsole are placed into a sand blasting machine, the blasting material impacts the bonding surface of the rubber outsole and the EVA midsole at a high speed by jetting airflow, and the blasting material of the sand blasting machine selects any one of quartz sand, carborundum, Hainan sand, copper ore sand and iron sand to prepare a roughened rubber outsole and a roughened EVA midsole with rough bonding surfaces;
placing the roughened rubber outsole and the roughened EVA insole which are roughened in the step three into an ultrasonic cleaning machine, adding a proper amount of cleaning liquid, wherein the cleaning liquid is prepared by mixing deionized water, ethylene glycol, calcium phosphate and acetone, the weight ratio of the deionized water, the ethylene glycol, the calcium phosphate and the acetone is 98: 3: 1: 2, thoroughly removing dirt such as dust, grease and the like attached to the surfaces of the roughened rubber outsole and the roughened EVA insole through ultrasonic oscillation, the operating frequency of the ultrasonic cleaning machine is 5-13 kHz, and the cleaning time is 10-20 min, so that a clean rubber outsole and a clean EVA insole are prepared;
placing the clean rubber outsole cleaned in the fourth step into a lower die of a die press, laying the net film prepared in the second step on the bonding surface of the clean rubber outsole, then placing an upper die of a clean EVA insole die press into an upper die of the die press, closing the die, heating, cooling and opening the die, wherein the heating temperature of the die press is 190-210 ℃, the cooling temperature is 15-20 ℃, and the clean rubber outsole and the clean EVA insole are bonded into a whole through the net film to prepare a sole blank;
and step six, placing the sole blank prepared in the step five on an edge trimmer, removing the defects such as burrs, flashes and the like, and then preparing a finished sole product in a prefabricated shape.
Based on the above, the cleaning solution prepared by mixing deionized water, ethylene glycol, calcium phosphate and acetone is used for degreasing the rubber outsole and the EVA midsole, so that dirt such as dust, grease and the like attached to the surfaces of the rubber outsole and the EVA midsole is thoroughly removed, the contact area of the net film is increased, the adhesive force of the net film is improved, the bonding firmness between the rubber outsole and the EVA midsole is ensured, the quality of the sole is improved, the bonding surface of the rubber outsole and the EVA midsole is subjected to sand blasting roughening treatment, the surface adhesive force and the adhesive property of the rubber outsole and the EVA midsole are improved, the risk of falling of the net film is reduced, the problems of rubber cracking, water leakage and falling of the sole are avoided, and the service life of the sole is prolonged.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A bonding process for compression molding of a net film used for a rubber outsole and an EVA midsole comprises the following steps: firstly, slicing and drying; step two, spinning and net making; step three, roughening the surface; step four, cleaning and degreasing; step five, die pressing and bonding; step six, shaping and trimming; the method is characterized in that:
in the first step, the raw materials are placed on a slicing machine, the raw materials are cut into pieces with uniform sizes, the pieces are poured into a drum dryer, high-speed hot air flow is introduced to impact and stir the pieces, and redundant moisture on the pieces is evaporated;
pouring the dried material sheet in the step one into a screw extruder, heating at high temperature, melting into a melt, quantitatively injecting into a spinning machine through a metering pump, and preparing into a net film in a prefabricated shape after spinning, cooling, drafting, dividing, swinging, lapping, hot rolling, winding and slitting;
in the third step, the prefabricated rubber outsole and the EVA midsole are placed in a sand blasting machine, and the blasting material impacts the bonding surface of the rubber outsole and the EVA midsole at a high speed through jet air flow to prepare a roughened rubber outsole and a roughened EVA midsole with rough bonding surfaces;
in the fourth step, the coarsened rubber outsole and the coarsened EVA insole which are coarsened in the third step are put into an ultrasonic cleaning machine, and a proper amount of cleaning fluid is added, dirt such as dust, grease and the like attached to the surfaces of the coarsened rubber outsole and the coarsened EVA insole is thoroughly removed through ultrasonic oscillation, and a clean rubber outsole and a clean EVA insole are prepared;
placing the clean rubber outsole cleaned in the fourth step into a lower die of a die press, laying the net film prepared in the second step on the bonding surface of the clean rubber outsole, then placing an upper die of a clean EVA insole die press into an upper die of the die press, and bonding the clean rubber outsole and the clean EVA insole into a whole through the net film after die assembly, heating, cooling and die opening to obtain a sole blank;
and step six, placing the sole blank prepared in the step five on an edge trimmer, removing the defects such as burrs, flashes and the like, and then preparing a finished sole product in a prefabricated shape.
2. The process of claim 1, wherein the net film is used for bonding the rubber outsole and the EVA midsole in a compression molding manner, and is characterized in that: in the first step, the drying temperature of the drum dryer is 120-150 ℃, and the drying time is 12-20 hours.
3. The process of claim 1, wherein the net film is used for bonding the rubber outsole and the EVA midsole in a compression molding manner, and is characterized in that: in the second step, the screw extruder is a double-screw extruder, and the operating temperature is 185-235 ℃.
4. The process of claim 1, wherein the net film is used for bonding the rubber outsole and the EVA midsole in a compression molding manner, and is characterized in that: in the second step, the spinning diameter of the spinning machine is 0.8-1.4 mm, and the cooling temperature is 13-16 ℃.
5. The process of claim 1, wherein the net film is used for bonding the rubber outsole and the EVA midsole in a compression molding manner, and is characterized in that: in the third step, the blasting material of the sand blasting machine is any one of quartz sand, carborundum, Hainan sand, copper ore sand and iron sand.
6. The process of claim 1, wherein the net film is used for bonding the rubber outsole and the EVA midsole in a compression molding manner, and is characterized in that: in the fourth step, the operating frequency of the ultrasonic cleaning machine is 5-13 kHz, and the cleaning time is 10-20 min.
7. The process of claim 1, wherein the net film is used for bonding the rubber outsole and the EVA midsole in a compression molding manner, and is characterized in that: in the fourth step, the cleaning solution is prepared by mixing deionized water, ethylene glycol, calcium phosphate and acetone, and the weight ratio of the deionized water to the ethylene glycol to the calcium phosphate to the acetone is 98: 3: 1: 2.
8. The process of claim 1, wherein the net film is used for bonding the rubber outsole and the EVA midsole in a compression molding manner, and is characterized in that: in the fifth step, the heating temperature of the molding press is 190-210 ℃, and the cooling temperature is 15-20 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011163162.9A CN112339310A (en) | 2020-10-27 | 2020-10-27 | Bonding process for compression molding of rubber outsole and EVA midsole by net film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011163162.9A CN112339310A (en) | 2020-10-27 | 2020-10-27 | Bonding process for compression molding of rubber outsole and EVA midsole by net film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112339310A true CN112339310A (en) | 2021-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011163162.9A Pending CN112339310A (en) | 2020-10-27 | 2020-10-27 | Bonding process for compression molding of rubber outsole and EVA midsole by net film |
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| CN (1) | CN112339310A (en) |
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|---|---|---|---|---|
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| CN110733194A (en) * | 2019-10-24 | 2020-01-31 | 东莞市五世昌新材料有限公司 | kinds of net films used for adhering rubber outsole and EVA midsole in compression molding mode |
| CN111716603A (en) * | 2020-06-23 | 2020-09-29 | 青岛科技大学 | Preparation method of powdered fluororesin anti-sticking coating rubber mold |
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2020
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| CN1125385A (en) * | 1993-05-03 | 1996-06-26 | 里塔马技术公司 | Shoe sole component and shoe sole component construction method |
| JP2006124696A (en) * | 2004-10-01 | 2006-05-18 | Kao Corp | Detergent composition |
| CN102511965A (en) * | 2012-01-05 | 2012-06-27 | 意帝皮毛科技(上海)有限公司 | Novel integrated sole and processing technology thereof |
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| CN111716603A (en) * | 2020-06-23 | 2020-09-29 | 青岛科技大学 | Preparation method of powdered fluororesin anti-sticking coating rubber mold |
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Application publication date: 20210209 |