CN113103504A - Injection molding method of TPU (thermoplastic polyurethane) shoe material - Google Patents
Injection molding method of TPU (thermoplastic polyurethane) shoe material Download PDFInfo
- Publication number
- CN113103504A CN113103504A CN202110369733.2A CN202110369733A CN113103504A CN 113103504 A CN113103504 A CN 113103504A CN 202110369733 A CN202110369733 A CN 202110369733A CN 113103504 A CN113103504 A CN 113103504A
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- China
- Prior art keywords
- tpu
- film
- injection molding
- inner layer
- shoe material
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Classifications
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- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14008—Inserting articles into the mould
-
- 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
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to the technical field of sole processing, in particular to an injection molding method of TPU (thermoplastic polyurethane) shoe materials, which comprises the following steps: A. arranging a label groove in the mould; B. placing the whole TPU electroplated film in a die, and forming a TPU inner layer film on the TPU electroplated film; C. cutting the TPU electroplated film to obtain a TPU semi-formed film; D. arranging a forming groove in the die; E. and placing the TPU semi-formed film in a forming groove of a die, so as to form a TPU outer layer film on the TPU inner layer film. The TPU electroplating film is placed in the mould for the first injection moulding, so that the TPU electroplating film is combined with the TPU inner layer film, then the TPU semi-film is placed in the mould for the second injection moulding, so that the TPU electroplating film, the TPU inner layer film and the TPU outer layer film are combined to form the arc-shaped shoe material with radian, the structure is firm, and the damage to the TPU electroplating film can be prevented.
Description
Technical Field
The invention relates to the technical field of sole processing, in particular to an injection molding method of TPU (thermoplastic polyurethane) shoe materials.
Background
In the manufacturing process of shoes, sometimes a colored TPU (thermoplastic polyurethane) electroplated film needs to be combined into a shoe material at the joint of a sole and a heel, so that LOGO is formed at the rear part of the shoe.
Disclosure of Invention
The invention aims to provide an injection molding method of TPU (thermoplastic polyurethane) shoe materials, aiming at the defects in the prior art.
The purpose of the invention is realized by the following technical scheme: a TPU shoe material injection molding method comprises the following steps:
A. arranging a label groove in the mould;
B. placing the whole TPU electroplated film in a label groove of a mold, and performing injection molding on the surface of the TPU electroplated film so as to form a TPU inner layer film on the surface of the TPU electroplated film;
C. cutting the TPU electroplated film along the shape of the TPU inner layer film to obtain a TPU semi-formed film;
D. arranging a forming groove in the die;
E. and placing the TPU semi-formed film in a forming groove of a die, and performing injection molding on the TPU inner layer film of the TPU semi-formed film, so that a TPU outer layer film is formed on one side of the TPU inner layer film, which is far away from the TPU semi-formed film.
The invention further provides that the TPU electroplated film is a colored film.
The invention is further arranged that in the step B, the injection molding temperature is 40-100 ℃, and the injection molding time is 1-5 min.
The invention is further arranged that in the step B, the injection molding temperature is 50-90 ℃, and the injection molding time is 1-3 min.
The invention is further arranged that in the step E, the injection molding temperature is 40-100 ℃, and the injection molding time is 1-5 min.
The invention is further arranged that in the step E, the injection molding temperature is 50-90 ℃, and the injection molding time is 1-3 min.
The invention is further arranged that in the step C, a high-frequency cutting machine is adopted to cut the TPU inner layer film and the TPU electroplating film for film cutting treatment.
The invention has the beneficial effects that: the TPU electroplating film is placed in the mould for the first injection moulding, so that the TPU electroplating film is combined with the TPU inner layer film, then the TPU semi-film is placed in the mould for the second injection moulding, so that the TPU electroplating film, the TPU inner layer film and the TPU outer layer film are combined to form the arc-shaped shoe material with radian, the structure is firm, and the damage to the TPU electroplating film can be prevented.
Detailed Description
The invention is further described with reference to the following examples.
Embodiment 1, the method for injection molding of the TPU shoe material of this embodiment includes the following steps:
A. arranging a label groove in the mould;
B. placing the whole TPU electroplated film in a label groove of a mold, and performing injection molding on the surface of the TPU electroplated film so as to form a TPU inner layer film on the surface of the TPU electroplated film;
C. cutting the TPU electroplated film along the shape of the TPU inner layer film to obtain a TPU semi-formed film;
D. arranging a forming groove in the die;
E. and placing the TPU semi-formed film in a forming groove of a die, and performing injection molding on the TPU inner layer film of the TPU semi-formed film, so that a TPU outer layer film is formed on one side of the TPU inner layer film, which is far away from the TPU semi-formed film.
Specifically, in the injection molding method of the TPU shoe material in this embodiment, the TPU plating film is first placed in the mold for the first injection molding, so that the TPU plating film is combined with the TPU inner layer film, and then the TPU semi-film is placed in the mold for the second injection molding, so that the TPU plating film, the TPU inner layer film and the TPU outer layer film are combined to form the arc-shaped shoe material with a radian, the structure is firm, and the damage to the TPU plating film can be prevented.
In the injection molding method of the TPU shoe material, the TPU electroplating film is a color film.
In the method for injection molding of the TPU shoe material, the injection molding temperature is 40-100 ℃, and the injection molding time is 1-5 min. The temperature and the time can effectively prevent the TPU electroplated film from being damaged, and the TPU shoe material has a firm structure.
In the injection molding method of the TPU shoe material in this embodiment, in step C, a high-frequency cutting machine is used to cut the TPU inner layer film and the TPU plating film for film cutting.
Embodiment 2, the method for injection molding of the TPU shoe material of this embodiment includes the following steps:
A. arranging a label groove in the mould;
B. placing the whole TPU electroplated film in a label groove of a mold, and performing injection molding on the surface of the TPU electroplated film so as to form a TPU inner layer film on the surface of the TPU electroplated film;
C. cutting the TPU electroplated film along the shape of the TPU inner layer film to obtain a TPU semi-formed film;
D. arranging a forming groove in the die;
E. and placing the TPU semi-formed film in a forming groove of a die, and performing injection molding on the TPU inner layer film of the TPU semi-formed film, so that a TPU outer layer film is formed on one side of the TPU inner layer film, which is far away from the TPU semi-formed film.
In the injection molding method of the TPU shoe material, the TPU electroplating film is a color film.
In the method for injection molding of the TPU shoe material, in the step B, the injection molding temperature is 50-90 ℃, and the injection molding time is 1-3 min. The temperature and the time can further prevent the TPU electroplated film from being damaged and enable the TPU shoe material to be firm in structure.
In the injection molding method of the TPU shoe material in this embodiment, in step C, a high-frequency cutting machine is used to cut the TPU inner layer film and the TPU plating film for film cutting.
Embodiment 3, the method for injection molding of the TPU shoe material of this embodiment includes the following steps:
A. arranging a label groove in the mould;
B. placing the whole TPU electroplated film in a label groove of a mold, and performing injection molding on the surface of the TPU electroplated film so as to form a TPU inner layer film on the surface of the TPU electroplated film;
C. cutting the TPU electroplated film along the shape of the TPU inner layer film to obtain a TPU semi-formed film;
D. arranging a forming groove in the die;
E. and placing the TPU semi-formed film in a forming groove of a die, and performing injection molding on the TPU inner layer film of the TPU semi-formed film, so that a TPU outer layer film is formed on one side of the TPU inner layer film, which is far away from the TPU semi-formed film.
In the injection molding method of the TPU shoe material, the TPU electroplating film is a color film.
In the method for injection molding of the TPU shoe material, in the step E, the injection molding temperature is 40-100 ℃, and the injection molding time is 1-5 min. The temperature and the time can effectively prevent the TPU electroplated film from being damaged, and the TPU shoe material has a firm structure.
In the injection molding method of the TPU shoe material in this embodiment, in step C, a high-frequency cutting machine is used to cut the TPU inner layer film and the TPU plating film for film cutting.
Embodiment 4, the method for injection molding of the TPU shoe material of this embodiment includes the following steps:
A. arranging a label groove in the mould;
B. placing the whole TPU electroplated film in a label groove of a mold, and performing injection molding on the surface of the TPU electroplated film so as to form a TPU inner layer film on the surface of the TPU electroplated film;
C. cutting the TPU electroplated film along the shape of the TPU inner layer film to obtain a TPU semi-formed film;
D. arranging a forming groove in the die;
E. and placing the TPU semi-formed film in a forming groove of a die, and performing injection molding on the TPU inner layer film of the TPU semi-formed film, so that a TPU outer layer film is formed on one side of the TPU inner layer film, which is far away from the TPU semi-formed film.
In the injection molding method of the TPU shoe material, the TPU electroplating film is a color film.
In the method for injection molding of the TPU shoe material, in the step E, the injection molding temperature is 50-90 ℃, and the injection molding time is 1-3 min. The temperature and the time can further prevent the TPU electroplated film from being damaged, and the TPU shoe material is firm in structure.
In the injection molding method of the TPU shoe material in this embodiment, in step C, a high-frequency cutting machine is used to cut the TPU inner layer film and the TPU plating film for film cutting.
Embodiment 5, the method for injection molding of the TPU shoe material of this embodiment includes the following steps:
A. arranging a label groove in the mould;
B. placing the whole TPU electroplated film in a label groove of a mold, and performing injection molding on the surface of the TPU electroplated film so as to form a TPU inner layer film on the surface of the TPU electroplated film;
C. cutting the TPU electroplated film along the shape of the TPU inner layer film to obtain a TPU semi-formed film;
D. arranging a forming groove in the die;
E. and placing the TPU semi-formed film in a forming groove of a die, and performing injection molding on the TPU inner layer film of the TPU semi-formed film, so that a TPU outer layer film is formed on one side of the TPU inner layer film, which is far away from the TPU semi-formed film.
In the method for injection molding of the TPU shoe material, in the step B, the injection molding temperature is 50-90 ℃, and the injection molding time is 1-3 min.
In the method for injection molding of the TPU shoe material, in the step E, the injection molding temperature is 50-90 ℃, and the injection molding time is 1-3 min.
As the shoe material at the joint between the heel and the sole has a certain radian, the TPU electroplated film is easily damaged or is not firmly combined in the injection molding process; and D, obtaining that when the injection molding temperature is 50-90 ℃ in the step B, the injection molding time is 1-3min, and the injection molding temperature is 50-90 ℃ in the step E, and the injection molding time is 1-3min, the TPU electroplated film can be perfectly combined into the TPU material subjected to secondary injection molding, so that the TPU shoe material is firmly combined, and the TPU electroplated film cannot be damaged.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (7)
1. A TPU shoe material injection molding method is characterized in that: the method comprises the following steps:
A. arranging a label groove in the mould;
B. placing the whole TPU electroplated film in a label groove of a mold, and performing injection molding on the surface of the TPU electroplated film so as to form a TPU inner layer film on the surface of the TPU electroplated film;
C. cutting the TPU electroplated film along the shape of the TPU inner layer film to obtain a TPU semi-formed film;
D. arranging a forming groove in the die;
E. and placing the TPU semi-formed film in a forming groove of a die, and performing injection molding on the TPU inner layer film of the TPU semi-formed film, so that a TPU outer layer film is formed on one side of the TPU inner layer film, which is far away from the TPU semi-formed film.
2. The method for injection molding of TPU shoe material as set forth in claim 1, wherein: the TPU electroplated film is a colored film.
3. The method for injection molding of TPU shoe material as set forth in claim 1, wherein: in the step B, the injection molding temperature is 40-100 ℃, and the injection molding time is 1-5 min.
4. The method for injection molding of TPU shoe material as claimed in claim 3, wherein: in the step B, the injection molding temperature is 50-90 ℃, and the injection molding time is 1-3 min.
5. The method for injection molding of TPU shoe material as set forth in claim 1, wherein: in the step E, the injection molding temperature is 40-100 ℃, and the injection molding time is 1-5 min.
6. The method for injection molding of TPU shoe material as claimed in claim 5, wherein: in the step E, the injection molding temperature is 50-90 ℃, and the injection molding time is 1-3 min.
7. The method for injection molding of TPU shoe material as set forth in claim 1, wherein: and C, cutting the TPU inner layer film and the TPU electroplated film by a high-frequency cutting machine to carry out film cutting treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110369733.2A CN113103504A (en) | 2021-04-07 | 2021-04-07 | Injection molding method of TPU (thermoplastic polyurethane) shoe material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110369733.2A CN113103504A (en) | 2021-04-07 | 2021-04-07 | Injection molding method of TPU (thermoplastic polyurethane) shoe material |
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| Publication Number | Publication Date |
|---|---|
| CN113103504A true CN113103504A (en) | 2021-07-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110369733.2A Pending CN113103504A (en) | 2021-04-07 | 2021-04-07 | Injection molding method of TPU (thermoplastic polyurethane) shoe material |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101537688A (en) * | 2009-04-20 | 2009-09-23 | 东莞兴泰鞋材有限公司 | Shoe material processing method |
| CN112519096A (en) * | 2020-11-17 | 2021-03-19 | 高华文 | Process for manufacturing plastic products containing decorative metal, products and shoes using the process |
-
2021
- 2021-04-07 CN CN202110369733.2A patent/CN113103504A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101537688A (en) * | 2009-04-20 | 2009-09-23 | 东莞兴泰鞋材有限公司 | Shoe material processing method |
| CN112519096A (en) * | 2020-11-17 | 2021-03-19 | 高华文 | Process for manufacturing plastic products containing decorative metal, products and shoes using the process |
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Application publication date: 20210713 |
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