CN117621321A - Rubber mold and method for manufacturing sole or vamp by using same - Google Patents
Rubber mold and method for manufacturing sole or vamp by using same Download PDFInfo
- Publication number
- CN117621321A CN117621321A CN202311547997.8A CN202311547997A CN117621321A CN 117621321 A CN117621321 A CN 117621321A CN 202311547997 A CN202311547997 A CN 202311547997A CN 117621321 A CN117621321 A CN 117621321A
- Authority
- CN
- China
- Prior art keywords
- sole
- vamp
- rubber
- rubber mold
- mold
- Prior art date
- 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.)
- Pending
Links
- 229920001971 elastomer Polymers 0.000 title claims abstract description 78
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 55
- 238000000034 method Methods 0.000 title claims abstract description 7
- 238000001746 injection moulding Methods 0.000 claims abstract description 23
- 239000002994 raw material Substances 0.000 claims description 27
- 239000000463 material Substances 0.000 claims description 18
- 229920002725 thermoplastic elastomer Polymers 0.000 claims description 16
- 239000002245 particle Substances 0.000 claims description 12
- 239000004814 polyurethane Substances 0.000 claims description 10
- 239000004744 fabric Substances 0.000 claims description 9
- 238000007731 hot pressing Methods 0.000 claims description 8
- 229920002635 polyurethane Polymers 0.000 claims description 8
- 239000003292 glue Substances 0.000 claims description 7
- 239000003086 colorant Substances 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 4
- 239000002313 adhesive film Substances 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 239000000047 product Substances 0.000 description 7
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000006082 mold release agent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/3842—Manufacturing moulds, e.g. shaping the mould surface by machining
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/38—Cutting-out; Stamping-out
- B26F1/40—Cutting-out; Stamping-out using a press, e.g. of the ram type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/40—Plastics, e.g. foam or rubber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/48—Wearing apparel
- B29L2031/50—Footwear, e.g. shoes or parts thereof
- B29L2031/504—Soles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/48—Wearing apparel
- B29L2031/50—Footwear, e.g. shoes or parts thereof
- B29L2031/505—Uppers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
The invention provides a rubber mold easy to manufacture in a large scale and a method for manufacturing soles or vamps by using the rubber mold, which comprises an integrally formed rubber mold main body and a cavity which is integrally formed with the rubber mold main body and is matched with the shape of the soles or vamps, wherein the rubber mold is beneficial to mass production of molds, after the male molds with various sizes are manufactured, the soles and the vamps can be quickly poured by using an injection molding machine, the rubber mold is used as a production mold, and about 200 rubber molds can be produced by one injection molding machine for one day.
Description
Technical Field
The invention relates to the technical field of shoemaking, in particular to a rubber mold and a method for manufacturing soles or vamps by using the rubber mold.
Background
The soles (in a broad sense, soles can comprise all parts forming the bottoms such as outsoles, midsoles and heels) and uppers of shoes popular in the market at present are mainly made of Polyurethane (PU) materials, and the polyurethane has the characteristics of high density, high hardness, wear resistance, good elasticity, good oxidation resistance, easy corrosion, environmental protection, difficult buckling and the like.
At present, most of moulds adopted in the production of polyurethane soles or shoe uppers are metal moulds (such as iron moulds, steel moulds, aluminum moulds and the like), so that in order to adapt to shoes with various sizes to finish mass production, a plurality of sets of metal moulds are required to be produced, but the metal moulds are long in manufacturing time and high in manufacturing cost, and once the production is finished, great economic loss is easily caused to factories due to hot tides which are bought by consumers, and finally, a large number of metal moulds are idle, so that resources are wasted.
Disclosure of Invention
Accordingly, the present invention provides a plastic mold that is easy to mass-produce and a method for producing soles or uppers using the same.
In order to achieve the above purpose, the technical scheme of the invention is to provide a rubber mold, which comprises an integrally formed rubber mold main body and a cavity which is integrally formed with the rubber mold main body and is matched with the shape of a sole or a vamp.
The further improvement is that: the rubber mold is characterized in that a plurality of annular protrusions are further arranged in the cavity on the rubber mold body, and supporting columns are further arranged at the central parts of the annular protrusions and used for forming a positioning hole which is convenient for blanking and positioning after the sole or the vamp is demolded.
The further improvement is that: the rubber mold body is made of thermoplastic elastomer TPE/TPR.
A method of making a sole or upper using a rubber mold, comprising the steps of:
s1, manufacturing a male die with a convex shape of a sole or a vamp;
s2, mounting the male die on an injection molding machine, pouring material particles which repel the raw materials for manufacturing the sole or vamp into the injection molding machine, heating and melting by the injection molding machine, and then pouring the material particles into the male die under high pressure to manufacture a rubber die with a cavity matched with the convex shape of the male die;
s3, mass production of rubber moulds and application of the rubber moulds to the production of soles and uppers.
The further improvement is that: the adhesive film is applied to the production of soles and vamps, and comprises the following steps:
s1, pouring the raw materials of the sole or the vamp in a molten state into a rubber mold, and removing the redundant raw materials of the sole or the vamp in the molten state;
s2, placing the rubber mold filled with the sole or vamp raw material in a molten state into a vacuum machine, and vacuumizing to remove bubbles in the sole or vamp raw material in the molten state;
s3, placing the rubber mould filled with the raw material of the sole or the vamp in a molten state into a hot press table for hot press molding, so that the vamp or the sole is molded;
s4, taking out the rubber mold, taking out the formed shoe upper or the product of the shoe sole, putting the product into a blanking machine, and blanking the shoe sole or the part of the shoe upper.
The further improvement is that: the sole or vamp is made of polyurethane, and the material particles which are repulsive to the material for making the sole or vamp are thermoplastic elastomer TPE/TPR particles.
The further improvement is that: the rubber mold is taken down from the injection molding machine, redundant parts are removed by a cutting tool, the redundant parts can be put into the injection molding machine again after being crushed by the crusher, and the rubber mold can be put into the injection molding machine again after being crushed by the crusher after being used for many times.
The further improvement is that: when the raw materials of the soles or the vamps in the molten state are poured into the rubber mold, the three-axis rubber filling machine can be used.
The further improvement is that: the hot pressing temperature of the hot pressing table is 60 ℃.
The further improvement is that: the rubber mould filled with the raw materials of the sole or the vamp in the molten state can be covered with a piece of cloth with colors and patterns before being placed into the hot press table, so that the raw materials of the sole or the vamp in the molten state penetrate into the cloth to be connected with the cloth, and the sole or the vamp is provided with the colors and the patterns.
The further improvement is that: the male die can be a metal male die or an epoxy resin male die.
The invention has the advantages and beneficial effects that:
1. after the male mold with various sizes is manufactured, the sole and vamp rubber mold can be quickly poured by using the injection molding machine, the rubber mold is used as a production mold, about 200 rubber molds can be produced in one day by producing the rubber mold by using one injection molding machine, the production speed is far higher than that of the production metal mold, the production cost is low, mass production in a short time is facilitated, and after the shoe model is out of date, the rubber mold can be put into the injection molding machine again after being crushed by the crusher, other types of rubber molds are produced, materials can be recycled, and the shoe model is reduced in carbon and environment-friendly.
2. The rubber mold is made of thermoplastic elastomer TPE/TPR, the material is mutually exclusive with Polyurethane (PU) material which is a main stream material of the shoe, and adhesion cannot occur, so that the shoe can be naturally demolded under the condition that no release agent is sprayed (the release agent can help the product to demold and reduce adhesion, but the adhesive strength of the adhesive can be affected at the same time), the shoe can be adhered with a finished product after demolding and blanking through the adhesive, the release agent is not required to be cleaned, the production process is saved, the production speed is improved, and the production cost is reduced.
Drawings
FIG. 1 is a schematic top view of a mold and a method for making a sole or vamp using the same according to the present invention;
FIG. 2 is an enlarged schematic view of a portion A of a method of manufacturing a sole or vamp using the adhesive mold according to the present invention;
FIG. 3 is a flow chart of a method for manufacturing a sole or vamp by using the glue die;
in the figure: 1. a rubber mold main body; 2. a cavity; 3. an annular protrusion; 4. and (5) supporting the column.
Detailed Description
The following describes the embodiments of the present invention further with reference to the drawings and examples. The following examples are only for more clearly illustrating the technical aspects of the present invention, and are not intended to limit the scope of the present invention.
As shown in fig. 1-2, the rubber mold comprises an integrally formed rubber mold main body 1 and a cavity 2 which is integrally formed with the rubber mold main body 1 and is matched with the shape of a sole or an vamp.
In order to facilitate positioning during blanking, the rubber mold main body 1 is provided with a plurality of annular protrusions 3 in the cavity 2, and the central part of each annular protrusion 3 is also provided with a support column 4 for forming a positioning hole for facilitating blanking positioning after the sole or vamp is demoulded.
In order to facilitate the demolding without using a mold release agent, the rubber mold body 1 is made of a thermoplastic elastomer TPE/TPR.
A method of making a sole or upper using a rubber mold, comprising the steps of:
s1, manufacturing a male die with a convex shape of a sole or a vamp;
s2, mounting the male die on an injection molding machine, pouring material particles which repel the raw materials for manufacturing the sole or vamp into the injection molding machine, heating and melting by the injection molding machine, and then pouring the material particles into the male die under high pressure to manufacture a rubber die with a cavity matched with the convex shape of the male die;
s3, mass production of rubber moulds and application of the rubber moulds to the production of soles and uppers.
In order to facilitate mass production of soles and uppers, the adhesive film is applied to the production of soles and uppers, and comprises the following steps:
s1, pouring the raw materials of the sole or the vamp in a molten state into a rubber mold, and removing the redundant raw materials of the sole or the vamp in the molten state;
s2, placing the rubber mold filled with the sole or vamp raw material in a molten state into a vacuum machine, and vacuumizing to remove bubbles in the sole or vamp raw material in the molten state;
s3, placing the rubber mould filled with the raw material of the sole or the vamp in a molten state into a hot press table for hot press molding, so that the vamp or the sole is molded;
s4, taking out the rubber mold, taking out the formed shoe upper or the product of the shoe sole, putting the product into a blanking machine, and blanking the shoe sole or the part of the shoe upper.
In order to facilitate demolding and avoid damaging the rubber mold, the sole or vamp is made of polyurethane, the material particles which repel the material for making the sole or vamp are thermoplastic elastomer TPE/TPR particles, the melting point of the thermoplastic elastomer TPE/TPR material is about 160 ℃, and the temperature of polyurethane hot-press molding is 60 ℃, so that the rubber mold and a cavity in the rubber mold are not damaged.
In order to reduce the production cost and improve the resource utilization rate, the rubber mold is taken down from the injection molding machine and then is removed by a cutting tool, the redundant part can be put into the injection molding machine again after being crushed by the crusher, and the rubber mold can be put into the injection molding machine again after being crushed by the crusher after being used for many times.
In order to improve the glue filling efficiency of the glue mould and further improve the production speed, the raw materials of the sole or vamp in the molten state can be poured into the glue mould through a three-shaft glue filling machine.
In order to save electric quantity, further save manufacturing cost and protect the rubber mold from being damaged, hot pressing temperature of the hot pressing table is 60 ℃, when hot pressing forming is carried out by utilizing a metal mold, in order to improve the efficiency of hot pressing forming, thereby rapidly producing the next product, a higher temperature is often adopted, but because the rubber mold can rapidly produce and copy multiple sets of reasons, a lower temperature can be adopted, so that the effect of saving resources is achieved.
Because polyurethane has translucency, in order to make the sole or vamp made of polyurethane have color or pattern, the rubber mould containing the raw material of sole or vamp in molten state can be covered with a piece of cloth with color and pattern before being put into the hot press bench, thereby make sole or vamp raw material in molten state permeate into cloth and connect with cloth so that sole or vamp have color and pattern.
The male mold may be a metal male mold or an epoxy male mold for ease of manufacturing the male mold.
While the basic principles and main features of the present invention and advantages thereof have been shown and described, it will be understood by those skilled in the art that the present invention is not limited by the foregoing embodiments, which are described merely by way of illustration of the principles of the present invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a rubber mold which characterized in that: comprises an integrally formed rubber mold main body and a cavity which is integrally formed with the rubber mold main body and is matched with the shape of the sole or the vamp.
2. A glue die as defined in claim 1, wherein: the rubber mold is characterized in that a plurality of annular protrusions are further arranged in the cavity on the rubber mold body, and supporting columns are further arranged at the central parts of the annular protrusions and used for forming a positioning hole which is convenient for blanking and positioning after the sole or the vamp is demolded.
3. A glue die as defined in claim 1, wherein: the rubber mold body is made of thermoplastic elastomer TPE/TPR.
4. A method of making a sole or upper using a rubber mold, characterized by: the method comprises the following steps:
s1, manufacturing a male die with a convex shape of a sole or a vamp;
s2, mounting the male die on an injection molding machine, pouring material particles which repel the raw materials for manufacturing the sole or vamp into the injection molding machine, heating and melting by the injection molding machine, and then pouring the material particles into the male die under high pressure to manufacture a rubber die with a cavity matched with the convex shape of the male die;
s3, mass production of rubber moulds and application of the rubber moulds to the production of soles and uppers.
5. A method of making a sole or upper using a gel mold according to claim 4, wherein: the adhesive film is applied to the production of soles and vamps, and comprises the following steps:
s1, pouring the raw materials of the sole or the vamp in a molten state into a rubber mold, and removing the redundant raw materials of the sole or the vamp in the molten state;
s2, placing the rubber mold filled with the sole or vamp raw material in a molten state into a vacuum machine, and vacuumizing to remove bubbles in the sole or vamp raw material in the molten state;
s3, placing the rubber mould filled with the raw material of the sole or the vamp in a molten state into a hot press table for hot press molding, so that the vamp or the sole is molded;
s4, taking out the rubber mold, taking out the formed shoe upper or the product of the shoe sole, putting the product into a blanking machine, and blanking the shoe sole or the part of the shoe upper.
6. A method of making a sole or upper using a gel mold according to claim 5, wherein: the sole or vamp is made of polyurethane, and the material particles which are repulsive to the material for making the sole or vamp are thermoplastic elastomer TPE/TPR particles.
7. A method of making a sole or upper using a gel mold according to claim 5, wherein: the rubber mold is taken down from the injection molding machine, redundant parts are removed by a cutting tool, the redundant parts can be put into the injection molding machine again after being crushed by the crusher, and the rubber mold can be put into the injection molding machine again after being crushed by the crusher after being used for many times.
8. A method of making a sole or upper using a gel mold according to claim 5, wherein: when the raw materials of the soles or the vamps in the molten state are poured into the rubber mold, the three-axis rubber filling machine can be used.
9. A method of making a sole or upper using a gel mold according to claim 5, wherein: the hot pressing temperature of the hot pressing table is 60 ℃.
10. A method of making a sole or upper using a gel mold according to claim 5, wherein: the rubber mould filled with the raw materials of the sole or the vamp in the molten state can be covered with a piece of cloth with colors and patterns before being placed into the hot press table, so that the raw materials of the sole or the vamp in the molten state penetrate into the cloth to be connected with the cloth, and the sole or the vamp is provided with the colors and the patterns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311547997.8A CN117621321A (en) | 2023-11-20 | 2023-11-20 | Rubber mold and method for manufacturing sole or vamp by using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311547997.8A CN117621321A (en) | 2023-11-20 | 2023-11-20 | Rubber mold and method for manufacturing sole or vamp by using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117621321A true CN117621321A (en) | 2024-03-01 |
Family
ID=90024541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311547997.8A Pending CN117621321A (en) | 2023-11-20 | 2023-11-20 | Rubber mold and method for manufacturing sole or vamp by using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117621321A (en) |
-
2023
- 2023-11-20 CN CN202311547997.8A patent/CN117621321A/en active Pending
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