CN114953337A - In-mold decoration injection mold and in-mold decoration injection molding method - Google Patents
In-mold decoration injection mold and in-mold decoration injection molding method Download PDFInfo
- Publication number
- CN114953337A CN114953337A CN202111674521.1A CN202111674521A CN114953337A CN 114953337 A CN114953337 A CN 114953337A CN 202111674521 A CN202111674521 A CN 202111674521A CN 114953337 A CN114953337 A CN 114953337A
- Authority
- CN
- China
- Prior art keywords
- mold
- decoration injection
- mold decoration
- molding method
- injection molding
- 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
- 238000005034 decoration Methods 0.000 title claims abstract description 35
- 238000002347 injection Methods 0.000 title claims abstract description 23
- 239000007924 injection Substances 0.000 title claims abstract description 23
- 238000001746 injection moulding Methods 0.000 title claims abstract description 19
- 239000012528 membrane Substances 0.000 claims description 10
- 238000005336 cracking Methods 0.000 abstract description 5
- 238000012797 qualification Methods 0.000 abstract description 4
- 238000002474 experimental method Methods 0.000 abstract description 3
- 238000005086 pumping Methods 0.000 abstract description 3
- 230000008602 contraction Effects 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
Images
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
- B29C45/1418—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 the inserts being deformed or preformed, e.g. by the injection pressure
- B29C45/14221—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 the inserts being deformed or preformed, e.g. by the injection pressure by tools, e.g. cutting means
-
- 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
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/1701—Component parts, details or accessories; Auxiliary operations using a particular environment during moulding, e.g. moisture-free or dust-free
-
- 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
- B29C2791/00—Shaping characteristics in general
- B29C2791/004—Shaping under special conditions
- B29C2791/006—Using vacuum
-
- 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
- B29L2031/58—Upholstery or cushions, e.g. vehicle upholstery or interior padding
Abstract
The invention relates to an in-mold decoration injection mold and an in-mold decoration injection molding method. The in-mold decoration injection mold is characterized by comprising a movable mold and a fixed mold; the fixed die is provided with an inclined top; the oblique top is provided with a blade; the movable die comprises a movable die module, the movable die module is provided with a groove, and when the movable die and the fixed die are assembled, the blade is inserted into the groove. According to the in-mold decoration injection mold and the in-mold decoration injection molding method, the film is cut into a notch during mold closing, so that the stretching deformation of the film is reduced during vacuum pumping in the mold, and the problems of shrinking, cracking, wrinkling and the like can be solved. Experiments prove that the in-mold decoration injection mold and the in-mold decoration injection molding method can achieve 99% of product qualification rate.
Description
Technical Field
The invention relates to an in-mold decoration injection mold and an in-mold decoration injection molding method.
Background
And the in-mold decoration injection molding needs to arrange the membrane on the surface of an injection molding piece during injection molding. Before injection molding materials are injected, the mold needs to be vacuumized to enable the membrane to be attached to the surface of the cavity. After the mold is vacuumized, the membrane is stretched and enlarged, and the problems of cracking, wrinkling, contraction printing and the like can occur after injection molding, so that the product failure rate is higher. At present, cracking and wrinkling exist, and the qualification rate of products caused by the reduction printing is only 90%.
Disclosure of Invention
The invention provides an in-mold decoration injection mold and an in-mold decoration injection molding method for solving the technical problems.
In order to achieve the above purpose, the invention is realized by the following technical scheme:
the in-mold decoration injection mold is characterized by comprising a movable mold and a fixed mold;
the fixed die is provided with an inclined top; the oblique top is provided with a blade;
the movable die comprises a movable die module, the movable die module is provided with a groove, and when the movable die and the fixed die are assembled, the blade is inserted into the groove.
According to one embodiment of the invention, the number of the pitched roofs is plural, and a part of the pitched roofs is provided with the blade.
The in-mold decoration injection molding method is characterized in that the in-mold decoration injection mold is used, and comprises the following steps:
conveying the membrane from the membrane roll to an injection mold;
closing the die, wherein a blade cuts the diaphragm when the die is closed, and cuts a notch on the diaphragm; and vacuumizing the mold to enable the membrane to be adsorbed on the surface of the cavity.
According to the in-mold decoration injection mold and the in-mold decoration injection molding method, the film is cut into a notch during mold closing, so that the stretching deformation of the film is reduced during vacuum pumping in the mold, and the problems of shrinking, cracking, wrinkling and the like can be solved. Experiments prove that the in-mold decoration injection mold and the in-mold decoration injection molding method can achieve 99% of product qualification rate.
Drawings
FIG. 1 is a schematic structural view of an in-mold decoration injection mold according to the present invention.
Fig. 2 is a partial structural schematic view of the mold of the present invention.
Detailed Description
The invention is described in detail below with reference to the attached drawing figures:
as shown in fig. 1 to 2, an in-mold decoration injection mold 100 includes a movable mold and a stationary mold (not shown in the drawings;
the fixed die is provided with an inclined top 101; the inclined top 101 is provided with a blade 102;
the movable die comprises a movable die module 103, the movable die module 103 is provided with a groove 104, and when the movable die and the fixed die are assembled, the blade 102 is inserted into the groove 104.
According to an embodiment of the present invention, the number of the slanted ejecting portions 101 is plural, and a part of the slanted ejecting portions 101 is provided with the blade 102.
The in-mold decoration injection molding method uses the in-mold decoration injection mold and comprises the following steps:
transporting the film web 105 from the film roll to the in-mold decoration injection mold 100;
closing the die, wherein the blade 102 cuts the film 105 when the die is closed, and cuts a notch on the film 105; and vacuumizing the mould to ensure that the membrane 105 is adsorbed on the surface of the cavity.
According to the in-mold decoration injection mold and the in-mold decoration injection molding method, the film is cut into a notch during mold closing, so that the stretching deformation of the film is reduced during vacuum pumping in the mold, and the problems of shrinking, cracking, wrinkling and the like can be solved. Experiments prove that the in-mold decoration injection mold and the in-mold decoration injection molding method can achieve 99% of product qualification rate.
The embodiments of the present invention are merely illustrative, and not restrictive, of the scope of the claims, and other substantially equivalent alternatives may occur to those skilled in the art and are within the scope of the present invention.
Claims (3)
1. The in-mold decoration injection mold is characterized by comprising a movable mold and a fixed mold;
the fixed die is provided with an inclined top; the oblique top is provided with a blade;
the movable die comprises a movable die module, the movable die module is provided with a groove, and when the movable die and the fixed die are assembled, the blade is inserted into the groove.
2. The in-mold decorated injection mold according to claim 1, wherein the number of the lifter is plural, and part of the lifter is provided with the blade.
3. An in-mold decoration injection molding method characterized by using the in-mold decoration injection mold according to claim 1 or 2, comprising the steps of:
conveying the membrane from the membrane roll to an injection mold; (ii) a
Closing the die, wherein a blade cuts the diaphragm when the die is closed, and cuts a notch on the diaphragm; and vacuumizing the mold to enable the membrane to be adsorbed on the surface of the cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111674521.1A CN114953337A (en) | 2021-12-31 | 2021-12-31 | In-mold decoration injection mold and in-mold decoration injection molding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111674521.1A CN114953337A (en) | 2021-12-31 | 2021-12-31 | In-mold decoration injection mold and in-mold decoration injection molding method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114953337A true CN114953337A (en) | 2022-08-30 |
Family
ID=82975325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111674521.1A Pending CN114953337A (en) | 2021-12-31 | 2021-12-31 | In-mold decoration injection mold and in-mold decoration injection molding method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114953337A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005001205A (en) * | 2003-06-11 | 2005-01-06 | Towa Corp | Mold for molding resin and resin molding method |
| EP1941982A1 (en) * | 2007-01-05 | 2008-07-09 | Snyang Yu Enterprise Co., Ltd. | Film feeding machine |
| CN201889877U (en) * | 2010-11-26 | 2011-07-06 | 吴江友鑫高分子材料科技有限公司 | Injection moulding device for in-mold decoration |
| CN102672892A (en) * | 2012-05-23 | 2012-09-19 | 南京科晖印刷科技有限公司 | In-mold injection molding method and in-mold injection molding mold |
| CN205467048U (en) * | 2015-12-31 | 2016-08-17 | 上海通领汽车科技股份有限公司 | Production of automotive interior spare is with empiecement injection mold in mould |
| CN106042269A (en) * | 2016-07-29 | 2016-10-26 | 苏州高通机械科技有限公司 | Inter-mold film-adhering mold convenient in processing |
-
2021
- 2021-12-31 CN CN202111674521.1A patent/CN114953337A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005001205A (en) * | 2003-06-11 | 2005-01-06 | Towa Corp | Mold for molding resin and resin molding method |
| EP1941982A1 (en) * | 2007-01-05 | 2008-07-09 | Snyang Yu Enterprise Co., Ltd. | Film feeding machine |
| CN201889877U (en) * | 2010-11-26 | 2011-07-06 | 吴江友鑫高分子材料科技有限公司 | Injection moulding device for in-mold decoration |
| CN102672892A (en) * | 2012-05-23 | 2012-09-19 | 南京科晖印刷科技有限公司 | In-mold injection molding method and in-mold injection molding mold |
| CN205467048U (en) * | 2015-12-31 | 2016-08-17 | 上海通领汽车科技股份有限公司 | Production of automotive interior spare is with empiecement injection mold in mould |
| CN106042269A (en) * | 2016-07-29 | 2016-10-26 | 苏州高通机械科技有限公司 | Inter-mold film-adhering mold convenient in processing |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |