CN108790024B - In-mold film coating system - Google Patents
In-mold film coating system Download PDFInfo
- Publication number
- CN108790024B CN108790024B CN201810391307.7A CN201810391307A CN108790024B CN 108790024 B CN108790024 B CN 108790024B CN 201810391307 A CN201810391307 A CN 201810391307A CN 108790024 B CN108790024 B CN 108790024B
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- China
- Prior art keywords
- turnover
- mold
- die
- injection molding
- fixed
- 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.)
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- 239000007888 film coating Substances 0.000 title description 5
- 238000009501 film coating Methods 0.000 title description 5
- 230000007306 turnover Effects 0.000 claims abstract description 60
- 238000001746 injection moulding Methods 0.000 claims abstract description 35
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 238000001514 detection method Methods 0.000 claims description 13
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 239000010408 film Substances 0.000 abstract description 19
- 238000007667 floating Methods 0.000 abstract description 6
- 238000001125 extrusion Methods 0.000 abstract description 3
- 239000010409 thin film Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 8
- 239000004033 plastic Substances 0.000 description 8
- 229920003023 plastic Polymers 0.000 description 8
- 239000000758 substrate Substances 0.000 description 4
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 210000003128 head Anatomy 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 210000002489 tectorial membrane Anatomy 0.000 description 2
- 238000010023 transfer printing Methods 0.000 description 2
- 238000003854 Surface Print Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000007649 pad printing Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1615—The materials being injected at different moulding stations
-
- 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
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1615—The materials being injected at different moulding stations
- B29C45/1628—The materials being injected at different moulding stations using a mould carrier rotatable about an axis perpendicular to the opening and closing axis of the moulding stations
-
- 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
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1671—Making multilayered or multicoloured articles with an insert
Abstract
The invention discloses an in-mold film covering system, which comprises: the device comprises a turning die, a fixed die and a support frame. According to the in-mold film covering system, after the lower surface of the turnover mold is downwards matched with the fixed mold, the injection molding liquid is injected into the injection molding cavity through the injection molding opening, the base plate with the floating character on the upper surface is formed through the injection molding cavity, the injection molding liquid is cut off after the base plate is formed, the turnover mold is turned over and then is matched with the fixed mold in a mode that the upper surface of the turnover mold is downwards, and therefore a thin film can be covered on the upper surface of the base plate through extrusion of the turnover mold and the fixed mold, and the floating character is protected.
Description
Technical Field
The invention relates to the technical field of film coating, in particular to an in-mold film coating system.
Background
At present, the traditional processing methods for carrying out surface decoration on injection molding plastic components to form patterns or characters comprise the following steps: 1. printing is directly carried out on the surface of the plastic component, including silk-screen printing, pad printing or hot stamping; 2. the sticking method of the film panel, namely the curved film panel (decorative panel) printed with decorative pattern and text in advance is directly stuck on the outer surface of the plastic component by using pressure sensitive adhesive; 3. directly spraying paint on the outer surface of the plastic component to form a decorative surface; 4. directly carrying out laser carving and sealing on the outer surface of the material observing component to form a decorative surface; 5. the plastic component is made into a decorative surface by electroplating; 6. and 7, paving the decorative surface by utilizing water transfer printing and batch coating, and using an in-mold transfer printing method.
The decorative patterns and characters produced by the seven methods are on the surface of the expected material component, so that the product is easily scratched or abraded in the using process, and the long-time convenient normal use in the service life of the product is influenced to a certain extent. For example, in the film panel bonding method of the type 2, the pressure-sensitive adhesive used for bonding is a solvent-based volatile harmful chemical substance, which is not environment-friendly, and has the disadvantages of insecure bonding, easy adhesion of dust, insecure edge sealing and frequent cracking. In this case, in-mold coating is a preferred plastic member surface printing process.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides a structural diagram of an in-mold film covering system.
The invention provides an in-mold film coating system, which comprises: the device comprises a turning mold, a fixed mold and a support frame;
the turnover die is movably arranged on the support frame in the vertical direction in a turnover mode, a negative pressure cavity is arranged on one side, close to the upper surface, of the interior of the turnover die, and the negative pressure cavity is connected with an air pump input port arranged on the outer side of the turnover die; the upper surface of the turnover mould is distributed with air holes communicated with the negative pressure cavity; the upper surface of the turnover die is used for adsorbing the film through negative pressure provided by an air pump;
the lower surface of the turnover die is provided with a first groove, and the bottom of the first groove is provided with characters;
the fixed die is fixedly arranged on the support frame and positioned below the overturning die, and a second groove is formed in the upper surface of the fixed die; the second groove is matched with the first groove to form an injection molding cavity, and an injection molding opening communicated with the injection molding cavity is formed in the fixed mold.
Preferably, the device also comprises a control module, wherein an airflow sensor is arranged in the negative pressure cavity, and a hydraulic sensor is arranged at the injection molding opening; the control module is respectively connected with the air flow sensor and the hydraulic sensor and controls the turnover of the turnover die and the on-off of the incoming injection molding liquid according to the detection values of the air flow sensor and the hydraulic sensor.
Preferably, when the detection value of the air flow sensor is smaller than a preset air flow threshold value and the detection value of the hydraulic sensor is larger than a preset hydraulic value in a state that the lower surface of the turnover die faces downwards to be matched with the fixed die, the control module controls the injection molding liquid to feed and stop, and controls the turnover die to turn over to the upper surface to be matched with the fixed die downwards.
Preferably, when the turnover die is turned over, the control module firstly controls the turnover die to move upwards to be away from the fixed die, and then the turnover die moves downwards to be matched with the fixed die after being turned over.
According to the in-mold film covering system, after the lower surface of the turnover mold is downwards matched with the fixed mold, the injection molding liquid is injected into the injection molding cavity through the injection molding opening, the base plate with the floating character on the upper surface is formed through the injection molding cavity, the injection molding liquid is cut off after the base plate is formed, the turnover mold is turned over and then is matched with the fixed mold in a mode that the upper surface of the turnover mold is downwards, and therefore a thin film can be covered on the upper surface of the base plate through extrusion of the turnover mold and the fixed mold, and the floating character is protected.
So, through the setting of upset mould, mould plastics the base plate and unite two into one with the film absorption, adopt the mode that the two heads go and go forward and carry out tectorial membrane work in earlier stage, be favorable to improving work efficiency. In addition, the substrate forming and the film fixing work are finished on the same system, so that the occupied area of the working procedures is reduced, and the resources are saved.
Drawings
FIG. 1 is a schematic diagram of an in-mold coating system according to the present invention.
Detailed Description
Referring to fig. 1, the present invention provides an in-mold coating system, including: the overturning mold 1, the fixed mold 2 and the support frame also comprise a control module.
The turnover mould 1 is arranged on the support frame in a vertical turnover way, a negative pressure cavity 11 is arranged at one side of the interior of the turnover mould close to the upper surface, and the negative pressure cavity 11 is connected with an air pump input port arranged at the outer side of the turnover mould 1. And air holes 12 communicated with the negative pressure cavity 11 are distributed on the upper surface of the turnover mould 1. The upper surface of the turnover mould 1 is used for adsorbing the film through negative pressure provided by an air pump. Specifically, when the film is flatly laid on the upper surface of the turnover die 1, and after the air pump is started, the film is extruded on the upper surface of the turnover die 1 by the external air pressure because the air pressure in the negative pressure cavity 11 is lower than the external air pressure, so that the fixation of the upper surface of the turnover die 1 and the film is ensured.
The lower surface of the turnover die 1 is provided with a first groove 13, and the bottom of the first groove 13 is provided with characters.
The fixed die 2 is fixedly arranged on the supporting frame and is positioned below the overturning die 1, and the upper surface of the fixed die is provided with a second groove 21. The second groove 21 is matched with the first groove 13 to form an injection molding cavity, and an injection molding opening communicated with the injection molding cavity is formed in the fixed mold 2. After the lower surface of the turnover die 1 faces downwards and is matched with the fixed die 2, the injection molding liquid is injected into the injection molding cavity through an injection molding port, a base plate with floating characters on the upper surface is formed through the injection molding cavity, the injection molding liquid is cut off after the base plate is formed, the turnover die 1 is matched with the fixed die 2 in a mode that the upper surface faces downwards after being turned, and therefore a thin film can be covered on the upper surface of the base plate through extrusion of the turnover die and the fixed die 2 to protect the floating characters.
In this embodiment, the negative pressure cavity 11 is provided with the airflow sensor 3, and the injection port is provided with the hydraulic sensor 4. The control module is respectively connected with the airflow sensor 3 and the hydraulic sensor 4 and used for judging the film adsorption condition according to the detection result of the airflow sensor 3 and judging the filling condition in the injection molding cavity according to the detection result of the hydraulic sensor 4. When the detection value of the airflow sensor 3 is small, the film is indicated to completely cover the through hole on the upper surface of the turnover die 1, and the film is successfully tiled and fixed. When the detection value of the hydraulic sensor 4 is large, the injection molding cavity is indicated to be filled with the injection molding liquid, so that a gap can be prevented from being formed in the molded substrate, and the quality of the substrate is ensured.
Then, the control module controls the turnover of the turnover die 1 and the on-off of the incoming injection molding liquid according to the detection values of the air flow sensor 3 and the hydraulic sensor 4.
Specifically, when the lower surface of the turnover mold 1 faces downwards and is matched with the fixed mold 2, when the detection value of the airflow sensor 3 is smaller than a preset airflow threshold value and the detection value of the hydraulic sensor 4 is larger than a preset hydraulic value, the control module controls the feeding interruption of the injection molding liquid and controls the turnover mold 1 to turn over to the upper surface and match with the fixed mold 2. So, among this embodiment, through the setting of upset mould 1, mould plastics the base plate and unite two into one with the film absorption, adopt the mode that the two heads are gone on and carry out tectorial membrane earlier stage work, be favorable to improving work efficiency. In addition, in the embodiment, the substrate forming and the film fixing work are completed on the same system, so that the occupied area of the working procedure is reduced, and the resources are saved.
In the embodiment, when the turnover mould 1 is turned over, the control module firstly controls the turnover mould 1 to move upwards to be far away from the fixed mould 2, and then the turnover mould 1 is turned over and then moves downwards to be matched with the fixed mould 2. Thus, collision with the fixed mold 2 during the turning of the turning mold 1 can be avoided.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (1)
1. An in-mold coating system, comprising: the overturning device comprises an overturning die (1), a fixed die (2) and a supporting frame;
the turnover die (1) is arranged on the support frame in a vertically turnover mode, a negative pressure cavity (11) is arranged on one side, close to the upper surface, of the interior of the turnover die (1), and the negative pressure cavity (11) is connected with an air pump input port arranged on the outer side of the turnover die (1); the upper surface of the turnover mould (1) is distributed with air holes (12) communicated with the negative pressure cavity (11); the upper surface of the turnover die (1) is used for adsorbing the film through negative pressure provided by an air pump;
a first groove (13) is formed in the lower surface of the turnover die (1), and characters (14) are arranged at the bottom of the first groove (13);
the fixed die (2) is fixedly arranged on the support frame and is positioned below the overturning die (1), and the upper surface of the fixed die is provided with a second groove (21); the second groove (21) is matched with the first groove (13) to form an injection molding cavity, and an injection molding port communicated with the injection molding cavity is arranged on the fixed mold (2);
the device also comprises a control module, wherein an airflow sensor (3) is arranged in the negative pressure cavity (11), and a hydraulic sensor (4) is arranged at the injection port; the control module is respectively connected with the air flow sensor (3) and the hydraulic sensor (4), and controls the turnover of the turnover die (1) and the on-off of the incoming injection molding liquid according to the detection values of the air flow sensor (3) and the hydraulic sensor (4);
when the lower surface of the turnover mold (1) faces downwards and is matched with the fixed mold (2), when the detection value of the air flow sensor (3) is smaller than a preset air flow threshold value and the detection value of the hydraulic sensor (4) is larger than a preset hydraulic value, the control module controls the feeding interruption of injection molding liquid and controls the turnover mold (1) to turn over to the upper surface and match with the fixed mold (2);
when the turnover mold (1) is turned over, the control module firstly controls the turnover mold (1) to move upwards to be away from the fixed mold (2), and the turnover mold (1) is turned over and then moves downwards to be matched with the fixed mold (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810391307.7A CN108790024B (en) | 2018-04-27 | 2018-04-27 | In-mold film coating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810391307.7A CN108790024B (en) | 2018-04-27 | 2018-04-27 | In-mold film coating system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108790024A CN108790024A (en) | 2018-11-13 |
| CN108790024B true CN108790024B (en) | 2020-09-29 |
Family
ID=64093977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810391307.7A Active CN108790024B (en) | 2018-04-27 | 2018-04-27 | In-mold film coating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108790024B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5350553A (en) * | 1990-11-27 | 1994-09-27 | Mannesmann Aktiengesellschaft A Corp Of The Federal Republic Of Germany | Method for the manufacture of a decorated chip card |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011070608A1 (en) * | 2009-12-07 | 2011-06-16 | 三菱重工プラスチックテクノロジー株式会社 | Injection molding machine for two-material molding |
| JP5515894B2 (en) * | 2010-03-16 | 2014-06-11 | 宇部興産機械株式会社 | In-mold coating molding apparatus and in-mold coating molding method |
| CN102198721B (en) * | 2010-03-26 | 2013-11-06 | 康准电子科技（昆山）有限公司 | Injection-moulding mould for in-mould transfer printing |
| CN205058773U (en) * | 2015-10-16 | 2016-03-02 | 东旭科技集团有限公司 | Convertible film carrier platform that is suitable for in glass substrate's sticking film machine production line |
-
2018
- 2018-04-27 CN CN201810391307.7A patent/CN108790024B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5350553A (en) * | 1990-11-27 | 1994-09-27 | Mannesmann Aktiengesellschaft A Corp Of The Federal Republic Of Germany | Method for the manufacture of a decorated chip card |
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| Publication number | Publication date |
|---|---|
| CN108790024A (en) | 2018-11-13 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: An in mold laminating system Effective date of registration: 20201231 Granted publication date: 20200929 Pledgee: Chuzhou Wandong Rural Commercial Bank Co.,Ltd. Pledgor: CHUZHOU CHENRUN INDUSTRY AND TRADE Co.,Ltd. Registration number: Y2020980010432 |
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Date of cancellation: 20211124 Granted publication date: 20200929 Pledgee: Chuzhou Wandong Rural Commercial Bank Co.,Ltd. Pledgor: CHUZHOU CHENRUN INDUSTRY AND TRADE CO.,LTD. Registration number: Y2020980010432 |
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Denomination of invention: An in mold film coating system Effective date of registration: 20231106 Granted publication date: 20200929 Pledgee: Chuzhou Wandong Rural Commercial Bank Co.,Ltd. Pledgor: CHUZHOU CHENRUN INDUSTRY AND TRADE CO.,LTD. Registration number: Y2023980064335 |
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