CN111941825A - Thermal film coating mechanism and thermal film coating method for substrate surface - Google Patents
Thermal film coating mechanism and thermal film coating method for substrate surface Download PDFInfo
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- CN111941825A CN111941825A CN202010982787.1A CN202010982787A CN111941825A CN 111941825 A CN111941825 A CN 111941825A CN 202010982787 A CN202010982787 A CN 202010982787A CN 111941825 A CN111941825 A CN 111941825A
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- Prior art keywords
- roller
- film
- adhesive layer
- laminating
- substrate
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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
- B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
- B29C63/0065—Heat treatment
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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
- B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
- B29C63/02—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material
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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
- B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
- B29C63/02—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material
- B29C2063/021—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material characterized by the junction of material sections
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- 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
- B29L2007/00—Flat articles, e.g. films or sheets
- B29L2007/002—Panels; Plates; Sheets
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention belongs to the technical field of mechanical equipment, and particularly relates to a thermal film coating mechanism and a thermal film coating method for a substrate surface, wherein the thermal film coating mechanism comprises a rack, a support roller for supporting a substrate and a transition roller which is arranged at the rear section of the support roller and used for transporting the substrate are arranged on the rack, and a film coating roller which interacts with the support roller to attach a film to the substrate surface is arranged above the support roller; the front section of the laminating roller is provided with a preheating roller for preheating the laminating adhesive layer; and a heating device for directly heating the laminating adhesive layer is arranged between the laminating roller and the preheating roller. The invention changes the heating mode of the traditional hot laminating mechanism to the laminating film, directly heats the adhesive layer of the laminating film, and simultaneously cools the PET layer of the laminating film in time after laminating the film, thereby fully ensuring the firm adhesion of the adhesive layer. The coated substrate obtained by the hot coating method has a smooth, high-light and bright coated surface and is attractive and elegant.
Description
Technical Field
The invention belongs to the technical field of mechanical equipment, and particularly relates to a thermal film coating mechanism and a thermal film coating method for a substrate surface.
Background
It is known that coatings protect the surface of a substrate and provide the surface of the substrate with a high-gloss and clean beautifying effect, but because the coatings are mainly formed by mixing various compounds, the coatings generally have odor and even some toxic substances. It is contemplated that the substrate meter may be laminated with a card protective film to achieve the same protective and aesthetic benefits. One side of the card protecting film is a smooth PET layer, the other side of the card protecting film is an adhesive layer, and the whole card protecting film is directly coated on the surface of the base material by using the adhesive force of the adhesive layer, so that the surface of the base material is attractive, and is moisture-proof and damp-proof. The traditional laminating machine is used for laminating a card protecting film, the laminating roller is heated, heat on the surface of the roller is transmitted to the hot melt adhesive through the PET layer, the temperature of the surface of the roller is far higher than the melting point temperature of the hot melt adhesive, and if the temperature of the surface of the roller is too low, the hot melt adhesive is not completely melted and is not firmly bonded; the temperature on the surface of the roller must reach more than 150 ℃ to completely melt the hot melt adhesive, and at the moment, the PET is also deformed due to high-temperature softening, and the PET on the surface of the laminated plate generates orange peel lines and other adverse phenomena.
Disclosure of Invention
Aiming at the technical problems, the invention provides a thermal laminating mechanism and a thermal laminating method for the surface of a base material, which have good laminating effect.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: a hot laminating mechanism for the surface of a base material comprises a rack, wherein a supporting roller for supporting the base material and a transition roller which is arranged at the rear section of the supporting roller and used for transporting the base material are arranged on the rack; the front section of the laminating roller is provided with a preheating roller for preheating the laminating adhesive layer; a heating device for directly heating the laminating adhesive layer is arranged between the laminating roller and the preheating roller;
further: in the above thermal coating mechanism for a substrate surface, the heating device is a planar heating module. The rear section of the plane heating module is also provided with a cambered surface heating module. The plane heating module and the cambered surface heating module are formed by combining a group of heating lamp tubes or heating lamp belts. The heating surfaces of the plane heating module and the cambered surface heating module are parallel to the adhesive layer of the film as much as possible.
The plane heating module and the cambered surface heating module are both provided with lifting mechanisms for cutting off the heating source.
And a temperature measuring sensor for timely sensing the temperature of the film laminating adhesive layer is arranged on the side edge of the film laminating roller.
It also includes an emptying roller carrying a film-covered material roll.
And a cooling transition roller for cooling the film-coated PET surface layer in time is also arranged between the film-coated roller and the transition roller.
The invention also comprises a thermal laminating method of the thermal laminating mechanism for the surface of the base material, which comprises the following steps:
a: pretreating the surface of the substrate to be filmed: the surface of the substrate to be coated with the film is fully cleaned and then is heated, and the temperature of the surface of the substrate reaches 80-85 ℃;
b: preheating the adhesive layer of the film: the preheating roller is directly attached to the adhesive layer of the film, so that the temperature of the adhesive layer reaches 60-65 ℃;
c: and (3) performing heat treatment on the adhesive layer of the film: the plane heating module heats the adhesive layer of the film to enable the temperature of the adhesive layer to reach 80-110 ℃, and the cambered surface heating module continues to heat the adhesive layer of the film to enable the temperature of the adhesive layer to reach 120-130 ℃;
d: and D, directly attaching the adhesive layer in the step C to the surface to be filmed of the substrate in the step A by utilizing the interaction of the film coating roller and the supporting roller.
And D, cooling the PET surface of the substrate subjected to film pasting in the step D in time.
Compared with the prior art, the hot laminating mechanism for the surface of the base material comprises a rack, wherein a supporting roller for supporting the base material and a transition roller which is arranged at the rear section of the supporting roller and used for transporting the base material are arranged on the rack; the front section of the laminating roller is provided with a preheating roller for preheating the laminating adhesive layer; and a heating device for directly heating the laminating adhesive layer is arranged between the laminating roller and the preheating roller. Of course, the PLC controller is arranged in the rack, and the PLC controller plays an automatic control role in coordination of all mechanisms. The invention changes the heating mode that the traditional hot laminating mechanism heats the laminating roller, the heat on the surface of the roller is conducted to the hot melt adhesive through the PET layer, the invention directly heats the laminating adhesive layer, the adhesive melting temperature of the adhesive layer is generally 90-120 ℃, the melting temperature of the optical film PET layer of the card protection film is generally more than 130, and the temperature difference between the two is utilized. The coated substrate obtained by the hot coating method has a smooth, high-light and bright coated surface and is attractive and elegant.
Drawings
FIG. 1 is a schematic structural view of a thermal film coating mechanism for a substrate surface according to the present invention;
wherein, 1 backing roll, 2 transition rollers, 3 tectorial membrane rollers, 4 preheat the roller, 5 plane heating module, 6 cambered surface heating module, 7 lift from the mechanism, 8 blowing rollers, 9 cooling transition rollers, 10 protect the card membrane, 11 wooden base plate.
Detailed Description
For the understanding of those skilled in the art, the structural principles of the present invention will be described in further detail below with reference to specific embodiments and the attached drawings, wherein:
as shown in figure 1: a hot film coating mechanism for the surface of a base material comprises a rack, wherein a support roller 1 for supporting the base material and a transition roller 2 which is arranged at the rear section of the support roller and used for transporting the base material are arranged on the rack, and a film coating roller 3 which interacts with the support roller and is used for coating a film on the surface of the base material is arranged above the support roller; the front section of the laminating roller is provided with a preheating roller 4 for preheating the laminating adhesive layer; a heating device for directly heating the laminating adhesive layer is arranged between the laminating roller 3 and the preheating roller; the heating device is a plane heating module 5. The rear section of the plane heating module is also provided with a cambered surface heating module 6. The plane heating module and the cambered surface heating module are formed by combining a group of heating lamp tubes or heating lamp belts. The plane heating module and the cambered surface heating module are both provided with lifting mechanisms 7 for cutting off heating sources. And a temperature measuring sensor for timely sensing the temperature of the film coating adhesive layer is arranged on the side edge of the film coating roller 3. It also includes an unwind roller 8 that carries a roll of film-covering material. And a cooling transition roller 9 for cooling the film-coated PET surface layer in time is also arranged between the film-coated roller and the transition roller.
The heat coating method of the heat coating mechanism for the surface of the base material, namely the heat coating method of coating the card protecting film 10 on the wood substrate 11, comprises the following steps:
a: pretreating the surface of the wood substrate 11 to be filmed: the surface of the wood substrate 11 to be filmed is fully cleaned and then is heated, and the temperature of the surface of the wood substrate 11 is shown in table 1;
b: the adhesive layer of the card-protecting film 10 (covering film) is subjected to a preheating treatment: the preheating roller 4 is directly attached to the adhesive layer of the card-protecting film 10 (hot laminating film) to make the temperature of the adhesive layer reach the temperature shown in table 1;
c: the adhesive layer of the card-protecting film 10 (covering film) is subjected to heat treatment: the plane heating module 5 heats the adhesive layer of the card protecting film 10 (coated film) to enable the temperature of the adhesive layer of the card protecting film 10 (coated film) to reach the temperature shown in the table 1; the cambered surface heating module continues to heat the adhesive layer of the card protecting film 10 (coated film) to enable the temperature of the adhesive layer of the card protecting film 10 (coated film) to reach the temperature shown in the table 1;
d: and D, directly adhering the adhesive layer in the step C to the surface to be laminated of the wood substrate 11 in the step A by utilizing the interaction of the laminating roller 3 and the supporting roller 1.
And D, cooling the surface of the wood substrate 11 subjected to film pasting in the step D in time.
Table 1: temperature (degree) of relevant step of each example
The laminated wood substrate obtained in the embodiment has a flat, high-light and bright laminated surface and is attractive and elegant. The wood grain on the wooden surface is clearly visible. The film strength was measured according to GB/T2791-test method for T peel strength of 1995 adhesive, and the obtained experimental data are shown in Table 2:
table 2: tension test data (N: Newton)
| Examples | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 |
| Peel strength (N: Newton) | 150 | 151 | 147 | 149 | 150 |
| Results of the experiment | Qualified | Qualified | Qualified | Qualified | Qualified |
According to the film coating mechanism for the surface of the base material and the film coating wood base plate obtained by the film coating method, the film coating surface is bright and clean, the appearance is attractive and elegant, and the wood grains on the wood surface are clear and visible. The adhesion between the coating and the surface of the base material is very good.
The present invention is not limited to the above-described embodiments. It will be understood by those skilled in the art that various changes may be made without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides a hot laminating mechanism for substrate surface, includes the frame, is equipped with backing roll (1) that support the substrate, sets up transition roller (2) at the backing roll back end and transportation substrate in the frame, its characterized in that:
a film coating roller (3) which interacts with the support roller to attach the film to the surface of the base material is arranged above the support roller;
the front section of the laminating roller is provided with a preheating roller (4) for preheating the laminating adhesive layer;
a heating device for directly heating the laminating adhesive layer is arranged between the laminating roller (3) and the preheating roller.
2. The thermal film coating mechanism for the surface of a substrate according to claim 1, wherein: the heating device is a plane heating module (5).
3. The thermal film coating mechanism for the surface of a substrate according to claim 2, wherein: the rear section of the plane heating module is also provided with a cambered surface heating module (6).
4. The thermal coating mechanism for the surface of a substrate according to claim 2 or 3, characterized in that: the plane heating module and the cambered surface heating module are formed by combining a group of heating lamp tubes or heating lamp belts.
5. The thermal film coating mechanism for the surface of a substrate according to claim 4, wherein: the plane heating module and the cambered surface heating module are both provided with lifting mechanisms (7) for cutting off the heating source.
6. The thermal film coating mechanism for the surface of a substrate according to claim 1, wherein: and a temperature measuring sensor for timely sensing the temperature of the film coating adhesive layer is arranged on the side edge of the film coating roller (3).
7. The thermal film coating mechanism for the surface of a substrate according to claim 1, wherein: it also comprises a discharging roller (8) for bearing the film-covered material roll.
8. The thermal film coating mechanism for the surface of a substrate according to claim 1, wherein: and a cooling transition roller (9) for cooling the film-coated PET surface layer in time is also arranged between the film-coated roller and the transition roller.
9. A thermal coating method for a thermal coating mechanism for a substrate surface according to any one of claims 1 to 5, comprising the steps of:
a: pretreating the surface of the substrate to be filmed: the surface of the substrate to be coated with the film is fully cleaned and then is heated, and the temperature of the surface of the substrate reaches 80-85 ℃;
b: preheating the adhesive layer of the film: the preheating roller is directly attached to the adhesive layer of the film, so that the temperature of the adhesive layer reaches 60-65 ℃;
c: and (3) performing heat treatment on the adhesive layer of the film: the plane heating module heats the adhesive layer of the film to enable the temperature of the adhesive layer to reach 80-110 ℃, and the cambered surface heating module continues to heat the adhesive layer of the film to enable the temperature of the adhesive layer to reach 120-130 ℃;
d: and D, directly attaching the adhesive layer in the step C to the surface to be filmed of the substrate in the step A by utilizing the interaction of the film coating roller and the supporting roller.
10. The thermal laminating method according to claim 9, wherein: and D, cooling the PET surface of the substrate subjected to film pasting in the step D in time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010982787.1A CN111941825A (en) | 2020-09-17 | 2020-09-17 | Thermal film coating mechanism and thermal film coating method for substrate surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010982787.1A CN111941825A (en) | 2020-09-17 | 2020-09-17 | Thermal film coating mechanism and thermal film coating method for substrate surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111941825A true CN111941825A (en) | 2020-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010982787.1A Pending CN111941825A (en) | 2020-09-17 | 2020-09-17 | Thermal film coating mechanism and thermal film coating method for substrate surface |
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| Country | Link |
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| CN (1) | CN111941825A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115337722A (en) * | 2022-06-22 | 2022-11-15 | 南京玻璃纤维研究设计院有限公司 | One-step method membrane-coated filter material forming process and membrane-coated filter material |
-
2020
- 2020-09-17 CN CN202010982787.1A patent/CN111941825A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115337722A (en) * | 2022-06-22 | 2022-11-15 | 南京玻璃纤维研究设计院有限公司 | One-step method membrane-coated filter material forming process and membrane-coated filter material |
| CN115337722B (en) * | 2022-06-22 | 2024-03-29 | 南京玻璃纤维研究设计院有限公司 | One-step method film-coated filter material forming process and film-coated filter material |
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