CN108544839B - Double-sided continuous vacuum thermal transfer printing system - Google Patents
Double-sided continuous vacuum thermal transfer printing system Download PDFInfo
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- CN108544839B CN108544839B CN201810425923.XA CN201810425923A CN108544839B CN 108544839 B CN108544839 B CN 108544839B CN 201810425923 A CN201810425923 A CN 201810425923A CN 108544839 B CN108544839 B CN 108544839B
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- transfer printing
- heat transfer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F16/00—Transfer printing apparatus
- B41F16/0006—Transfer printing apparatus for printing from an inked or preprinted foil or band
- B41F16/002—Presses of the rotary type
- B41F16/0026—Presses of the rotary type with means for applying print under heat and pressure, e.g. using heat activable adhesive
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F16/00—Transfer printing apparatus
- B41F16/0006—Transfer printing apparatus for printing from an inked or preprinted foil or band
- B41F16/006—Arrangements for moving, supporting or positioning the printing foil or band
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F16/00—Transfer printing apparatus
- B41F16/0006—Transfer printing apparatus for printing from an inked or preprinted foil or band
- B41F16/0073—Transfer printing apparatus for printing from an inked or preprinted foil or band with means for printing on specific materials or products
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F16/00—Transfer printing apparatus
- B41F16/0006—Transfer printing apparatus for printing from an inked or preprinted foil or band
- B41F16/0093—Attachments or auxiliary devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2219/00—Printing presses using a heated printing foil
- B41P2219/40—Material or products to be decorated or printed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2219/00—Printing presses using a heated printing foil
- B41P2219/60—Using more than one printing foil
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Labeling Devices (AREA)
- Decoration By Transfer Pictures (AREA)
Abstract
The invention discloses a double-sided continuous vacuum heat transfer printing system, which comprises a frame, wherein two heat transfer printing mechanisms are arranged on the frame, each heat transfer printing mechanism comprises two rotating wheels and a heat conducting film wound between the two rotating wheels, after the heat conducting films in the heat transfer printing mechanisms are wound on the corresponding rotating wheels, a first space is formed inside the heat conducting films, after the two heat transfer printing mechanisms are laminated, a double-sided heat transfer printing channel is formed between the heat conducting films in the two heat transfer printing mechanisms, a vacuum extraction mechanism for extracting air in the double-sided heat transfer printing channel is arranged beside the double-sided heat transfer printing channel, and the continuous rotary heat conducting films are designed, so that the processing process of heat transfer printing is continuous and uninterrupted, and the product replaces single processing in the vacuum heat transfer printing, realizes continuous online production of heat transfer printing processing, and can greatly improve the productivity.
Description
Technical Field
The invention relates to a transfer printing mechanism in the technical field of thermal transfer printing, in particular to a double-sided continuous vacuum thermal transfer printing system.
Background
The vacuum thermal transfer printing process is an extension of the powder electrostatic spraying treatment process, namely, a layer of organic paper printed with a certain pattern is stuck on the surface of an aluminum section or an aluminum plate qualified by the powder electrostatic spraying treatment, namely, the thermal transfer printing paper is vacuumized to ensure that the paper is completely covered on the surface of the aluminum material, and then the aluminum material is heated to ensure that the organic solvent on the paper is transferred and permeated into the bottom powder, so that the surface of the aluminum material obtains any rich color and pattern. The prior art has the following problems:
① The existing thermal transfer printing technology adopts a reciprocating type conveying mechanism to convey the workpiece into a thermal transfer printing chamber for vacuum thermal transfer printing, and each time of work only can carry out thermal transfer printing processing on a single workpiece, the subsequent processing of other workpieces can be carried out only after the whole processing technology of the workpiece is completed completely, and the single workpiece batch processing can only be realized, so that the processing speed is low, the efficiency is low, and the continuous, high-speed and large-batch production of products can not be realized;
② In the existing vacuum heat transfer printing process, a single processing mode is adopted, so that a large-volume heating chamber needs to be established to accommodate as many products as possible for word vacuum heat transfer printing in order to improve the production speed, so that not only is great energy consumed for heating the air of the heating chamber needed, but also a high-power vacuum source is needed for carrying out vacuum pumping work on the heating chamber, the energy consumption loss is great, and the corresponding cost is high;
③ The existing vacuum heat transfer printing process adopts a method of single-sided heat transfer printing processing of a workpiece, only one surface of the workpiece can be subjected to heat transfer printing at a time, and if double-sided transfer printing is needed, the workpiece is required to be overturned for secondary processing, so that heat transfer printing processing of the back surface of the workpiece is realized, the production efficiency is low, and the speed is low.
Disclosure of Invention
The invention aims to provide a double-sided continuous vacuum thermal transfer printing system, which ensures that the processing process of thermal transfer printing is continuous and uninterrupted, replaces single processing in vacuum thermal transfer printing, realizes continuous on-line production of thermal transfer printing processing, and can greatly improve the productivity.
The invention solves the technical problems as follows: the utility model provides a two-sided continuous vacuum heat transfer system, includes the frame, two heat transfer mechanisms have been arranged in the frame, each heat transfer mechanism includes two rotation wheels and twines the heat conduction membrane between two rotation wheels, the heat conduction membrane winding in the heat transfer mechanism is on corresponding rotation wheel after, and the inside first space that forms of heat conduction membrane, two after the heat transfer mechanism stacks, forms two-sided heat transfer passageway between the heat conduction membrane in two heat transfer mechanisms, two-sided heat transfer passageway is by arranging the vacuum extraction mechanism that will take out the air in the two-sided heat transfer passageway.
As a further improvement of the technical scheme, each first space is internally provided with a pilot gas mechanism, each pilot gas mechanism comprises two pilot gas wheels and a flexible pressure belt wound between the two pilot gas wheels, and after one side of each flexible pressure belt, which is close to the double-sided thermal transfer printing channel, clings to the corresponding heat conducting film, the double-sided thermal transfer printing channel is divided into an inlet channel, a pilot gas channel and a vacuum thermal transfer printing channel.
As a further improvement of the technical scheme, the flexible pressing belt is a waist drum-shaped flexible pressing belt with the middle high and the two sides low.
As a further improvement of the above technical solution, the vacuum extraction mechanism includes two vacuum units located at two sides of the double-sided thermal transfer printing channel, each vacuum unit includes two vacuum wheels and an air extraction adhesive tape wound between the two vacuum wheels, the air extraction adhesive tape is provided with an air extraction channel and an air extraction hole communicated with the air extraction channel, the air extraction channel is provided with a rotary exhaust pipe connected with a vacuum source, each air extraction hole is internally provided with an air extraction valve, and one side of each air extraction adhesive tape is inserted from the side of the corresponding double-sided thermal transfer printing channel.
As a further improvement of the technical scheme, two edge pressing units are arranged in the first space, one edge pressing unit corresponds to one vacuumizing unit, each edge pressing unit comprises two edge pressing wheels and an edge pressing belt wound between the two edge pressing wheels, and the edge pressing belt is in press contact with the air suction adhesive tape inserted into the double-sided thermal transfer printing channel through a heat conducting film.
As a further improvement of the technical scheme, the extraction valve comprises a control hole arranged in the extraction hole and a piston arranged in the control hole, wherein the center line of the control hole is vertical to the center line of the extraction hole, a spring is arranged between one end of the piston and the bottom end of the control hole, the other end of the piston penetrates out of the control hole, the piston is arranged behind the control hole and divides the extraction hole into a first hole and a second hole, and a third hole is arranged on the piston and is communicated with the first hole and the second hole after the spring is compressed.
As a further improvement of the technical scheme, a heat preservation cover is arranged in the first space, one side, close to the double-sided heat transfer printing channel, of the heat preservation cover is open, and a plurality of electric heating pipes are uniformly arranged in the heat preservation cover.
As a further improvement of the technical scheme, the heat insulation cover is internally provided with the heat insulation asbestos.
The beneficial effects of the invention are as follows:
1. The continuous rotary heat conducting film is innovatively designed, so that the processing process of heat transfer printing is continuous and uninterrupted, single processing of products in vacuum heat transfer printing is replaced, continuous on-line production of heat transfer printing processing is realized, and the production rate can be greatly improved;
2. the novel heat transfer printing device is characterized in that a pilot gas mechanism is innovatively designed, air between a transfer printing film and a coiled material is firstly moved away by a waist drum-shaped flexible pressing belt in heat transfer printing production, and then an upper heat conducting film and a lower heat conducting film are tightly pressed by the pressing belt and an air suction adhesive tape, so that a vacuumizing action in a transfer printing process can be rapidly and efficiently completed;
3. The vacuum extraction mechanism is innovatively designed, so that the vacuum heat transfer printing work can be completed by only pumping air of a small amount of double-sided heat transfer printing channels, the defect that most heat is taken away by pumping heating air when the vacuum heat transfer printing is vacuumized is overcome, the transfer printing effect can be greatly improved, the use efficiency of the heat is improved, and the cost is reduced;
4. two stacked heat transfer mechanisms are innovatively designed, and the electric heating pipes are arranged up and down to heat and transfer the two sides simultaneously in the transfer process, so that the defect that the traditional process can only perform single-sided heat transfer at each time is overcome, and the production efficiency can be greatly improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings that are required to be used in the description of the embodiments will be briefly described below. It is evident that the drawings described are only some embodiments of the invention, but not all embodiments, and that other designs and drawings can be obtained from these drawings by a person skilled in the art without inventive effort.
FIG. 1 is a schematic diagram of the structure of the present invention;
fig. 2 is a schematic view of the structure of the present invention with the upper heat conductive film removed;
FIG. 3 is a layout of an electric heating tube in the present invention;
FIG. 4 is a layout of an air-bleed tape of the present invention;
FIG. 5 is a cross-sectional view of a pilot gas mechanism of the present invention;
FIG. 6 is a schematic view of the structure of the invention when pumping;
Fig. 7, 8 and 9 are enlarged partial views of the respective operations of the extraction valve in the circled portion of fig. 6A.
Detailed Description
The conception, specific structure, and technical effects produced by the present invention will be clearly and completely described below with reference to the embodiments and the drawings to fully understand the objects, features, and effects of the present invention. It is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and that other embodiments obtained by those skilled in the art without inventive effort are within the scope of the present invention based on the embodiments of the present invention. In addition, all coupling/connection relationships mentioned herein do not refer to direct connection of the components, but rather, refer to the fact that a more optimal coupling structure may be formed by adding or subtracting coupling aids depending on the particular implementation.
Referring to fig. 1 to 9, a double-sided continuous vacuum thermal transfer system comprises a frame 1, two thermal transfer mechanisms are arranged on the frame 1, each thermal transfer mechanism comprises two rotating wheels 20 and a heat conducting film 2 wound between the two rotating wheels 20, after the heat conducting film 2 in the thermal transfer mechanism is wound on the corresponding rotating wheel 20, a first space is formed inside the heat conducting film 2, after the two thermal transfer mechanisms are laminated, a double-sided thermal transfer channel is formed between the heat conducting films 2 in the two thermal transfer mechanisms, and a vacuum extraction mechanism for extracting air in the double-sided thermal transfer channel is arranged beside the double-sided thermal transfer channel. A first unreeling frame 7 for mounting the upper transfer film, a second unreeling frame 8 for mounting the lower transfer film, and a third unreeling frame 9 for mounting the package sheet are mounted on the frame 1.
Further as a preferred embodiment, a pilot air mechanism is installed in each first space, each pilot air mechanism includes two pilot air wheels 40 and a flexible pressing belt 4 wound between the two pilot air wheels 40, and after one side of each flexible pressing belt 4, which is close to the double-sided thermal transfer printing channel, clings to the corresponding heat conducting film 2, the double-sided thermal transfer printing channel is divided into an inlet channel, a pilot air channel and a vacuum thermal transfer printing channel.
Further as a preferred embodiment, the flexible pressing belt 4 is a waist drum-shaped flexible pressing belt with a middle part higher and two sides lower.
Further as a preferred embodiment, the vacuum extraction mechanism comprises two vacuum units located at two sides of the double-sided thermal transfer printing channel, each vacuum unit comprises two vacuum wheels 30 and an air extraction adhesive tape 3 wound between the two vacuum wheels 30, the air extraction adhesive tape 3 is provided with an air extraction channel 31 and an air extraction hole 32 communicated with the air extraction channel 31, the air extraction channel 31 is provided with a rotary exhaust pipe 36 connected with a vacuum source, each air extraction hole 32 is internally provided with an air extraction valve, and one side of each air extraction adhesive tape 3 is inserted from the side face of the corresponding double-sided thermal transfer printing channel.
Further as a preferred embodiment, two edge pressing units are disposed in the first space, one edge pressing unit corresponds to one vacuumizing unit, each edge pressing unit includes two edge pressing wheels 50 and a pressing belt 5 wound between the two edge pressing wheels 50, and the pressing belt 5 is pressed and contacted with the air suction adhesive tape 3 inserted into the double-sided thermal transfer printing channel through the heat conducting film 2. Preferably, the air-extracting tape 3 is inserted from the side of the pilot gas passage and the vacuum thermal transfer passage, and extracts air from the pilot gas passage and the vacuum thermal transfer passage, respectively. The working range of the pressure side belt 5 is a pilot gas channel and a vacuum heat transfer printing channel. Corresponding two edge pressing wheels 50 in the two edge pressing units are connected through a rotating shaft.
Further as a preferred embodiment, the extraction valve comprises a control hole arranged in the extraction hole 32 and a piston 33 arranged in the control hole, wherein the center line of the control hole is perpendicular to the center line of the extraction hole 32, a spring 34 is arranged between one end of the piston 33 and the bottom end of the control hole, the other end of the piston 33 penetrates out of the control hole, the piston 33 is arranged in the control hole to divide the extraction hole 32 into a first hole and a second hole, a third hole 35 is arranged on the piston 33, and when the spring 34 is compressed, the third hole 35 is communicated with the first hole and the second hole.
Further as a preferred embodiment, a heat-insulating cover 6 is installed in the first space, one side, close to the double-sided heat transfer printing channel, of the heat-insulating cover 6 is open, and a plurality of electric heating tubes 60 are uniformly arranged in the heat-insulating cover 6.
Further, as a preferred embodiment, a thermal insulation asbestos is disposed in the thermal insulation cover 6 to prevent heat dissipation.
The following is a specific description of the present invention.
When the thermal transfer printing device works, the rotating wheel 20 acts to drive the heat conducting film 2 in the upper thermal transfer printing mechanism and the lower thermal transfer printing mechanism to rotate, and the upper transfer printing film, the lower transfer printing film and the wound sheet 5 are clamped and conveyed forwards. In the conveying process, air clamped among the heat conducting film 2, the upper transfer film, the lower transfer film and the rolled sheet is extruded and discharged by the flexible pressing belt 4, and then the heat conducting film 2 and the air exhausting adhesive tape 3 are clamped by the pressing belt 5, so that the sealing effect between the heat conducting film 2 and the air exhausting adhesive tape 3 is achieved when the air exhausting adhesive tape 3 is vacuumized. While the suction tape 3 is clamped, the vacuum suction mechanism is operated to start the vacuum suction. The heat conductive film 2 is heated by the electric heating pipes 60 arranged up and down, and the heat is transferred to the upper and lower heat transfer films through the heat conductive film 2, thereby performing the heat transfer work. The above actions are all accurate control speed of the corresponding servo motor so as to ensure synchronization. After the thermal transfer is finished, the residual materials of the thermal transfer film which are finished in the transfer work are automatically rolled and recovered, and the rolled sheet which is successfully transferred is driven to be sent out of the equipment through a guide device so as to be convenient for the next processing.
The invention is mainly used for carrying out thermal transfer printing on the rolled sheet, and can be suitable for thermal transfer printing processing of parts with various shapes through adaptation, and has strong adaptability and wide application.
The heat conducting films 2 are all made of high-temperature resistant silica gel, have the thickness of about 3 mm, ensure the heat transfer effect, ensure the compression and exhaust effects on the heat transfer film due to the soft texture, and ensure the sealing performance during vacuumizing; the upper transfer film and the lower transfer film are thermal transfer films, and patterns on the films are transferred onto the package sheet mainly through high temperature; the rotation of the rotating wheel 20 is driven by a servo motor to ensure all synchronous forward movement.
In the pilot exhaust mechanism, the flexible pressure belt 4 is made of high-temperature-resistant soft foaming silica gel, and is driven by a servo motor to synchronously move together with the heat conducting film 2 during working. The flexible pressing belt 4 is in a waist drum shape, and the middle part is high and the two sides are low, so that air among the heat conducting film 2, the transfer printing film and the wound sheet can be discharged from the middle to the two sides during movement. Then, the upper heat conducting film 2, the lower heat conducting film 2 and the air exhaust adhesive tape 3 are clamped by the pressure side tape 5 made of soft foaming silica gel, and vacuumizing operation is carried out.
The air extraction adhesive tape 3 is made of high-temperature-resistant silica gel material embedded reinforced fibers, a special air extraction valve is arranged in the air extraction adhesive tape 3, when the heat conduction film 2 clamps the air extraction adhesive tape 3, the air extraction valve in the air extraction adhesive tape 3 is opened, and a vacuum source extracts air among the heat conduction film 2, the transfer printing film and the wound sheet through a rotary exhaust pipe 36.
The operating principle of the extraction valve is as follows:
in the initial state, the piston 33 extends upwards under the action of the spring 34, the third hole 35 on the piston 33 is blocked, and external air cannot enter the space among the heat conducting film 2, the transfer printing film and the wound sheet through the third hole 35. The air suction channel 31 is communicated with the rotary exhaust pipe 36, and the vacuum source can suck the air of the air suction channel 31 through the rotary exhaust pipe 36. After the suction tape 3 is rotationally pressed in the gap between the two heat conductive films 2, the piston 33 moves downward under the pressure of the two pressing bands 5. When the piston 33 is completely compressed, air between the heat conductive film 2, the transfer film, and the wound sheet flows through the first hole, the third hole 35, and the second hole, and is then drawn from the rotary exhaust pipe 36 by the vacuum source through the air suction passage 31. The vacuum source is preferably a vacuum machine.
While the preferred embodiments of the present application have been illustrated and described, the present application is not limited to the embodiments, and various equivalent modifications and substitutions can be made by one skilled in the art without departing from the spirit of the present application, and these equivalent modifications and substitutions are intended to be included in the scope of the present application as defined in the appended claims.
Claims (3)
1. A double-sided continuous vacuum thermal transfer system, characterized in that: the device comprises a frame, wherein two heat transfer mechanisms are arranged on the frame, each heat transfer mechanism comprises two rotating wheels and a heat conducting film wound between the two rotating wheels, a first space is formed inside the heat conducting film after the heat conducting film in the heat transfer mechanism is wound on the corresponding rotating wheel, a double-sided heat transfer channel is formed between the heat conducting films in the two heat transfer mechanisms after the two heat transfer mechanisms are laminated, and a vacuum extraction mechanism for extracting air in the double-sided heat transfer channel is arranged beside the double-sided heat transfer channel;
a pilot gas mechanism is arranged in each first space, each pilot gas mechanism comprises two pilot gas wheels and a flexible pressure belt wound between the two pilot gas wheels, and after one side of each flexible pressure belt, which is close to the double-sided heat transfer printing channel, clings to the corresponding heat conducting film, the double-sided heat transfer printing channel is divided into an inlet channel, a pilot gas channel and a vacuum heat transfer printing channel;
The flexible pressing belt is a waist drum-shaped flexible pressing belt with the middle high and the two sides low;
the vacuum extraction mechanism comprises two vacuumizing units positioned at two sides of the double-sided thermal transfer printing channel, each vacuumizing unit comprises two vacuum wheels and an air extraction adhesive tape wound between the two vacuum wheels, the air extraction adhesive tape is provided with an air extraction channel and an air extraction hole communicated with the air extraction channel, the air extraction channel is provided with a rotary exhaust pipe connected with a vacuum source, an air extraction valve is arranged in each air extraction hole, and one side of each air extraction adhesive tape is inserted from the side face of the corresponding double-sided thermal transfer printing channel;
Two edge pressing units are arranged in the first space, one edge pressing unit corresponds to one vacuumizing unit, each edge pressing unit comprises two edge pressing wheels and an edge pressing belt wound between the two edge pressing wheels, and the edge pressing belt is in pressure contact with an air suction adhesive tape inserted into the double-sided thermal transfer printing channel through a heat conducting film;
The air extraction valve comprises a control hole arranged in the air extraction hole and a piston arranged in the control hole, wherein the center line of the control hole is vertical to the center line of the air extraction hole, a spring is arranged between one end of the piston and the bottom end of the control hole, the other end of the piston penetrates out of the control hole, the piston is arranged behind the control hole and divides the air extraction hole into a first hole and a second hole, and a third hole is arranged on the piston and is communicated with the first hole and the second hole after the spring is compressed.
2. The double-sided continuous vacuum thermal transfer system of claim 1, wherein: the heat-insulating cover is arranged in the first space, one side, close to the double-sided heat transfer printing channel, of the heat-insulating cover is open, and a plurality of electric heating pipes are uniformly arranged in the heat-insulating cover.
3. The double-sided continuous vacuum thermal transfer system of claim 2, wherein: the heat insulation cover is internally provided with heat insulation asbestos.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810425923.XA CN108544839B (en) | 2018-05-07 | 2018-05-07 | Double-sided continuous vacuum thermal transfer printing system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810425923.XA CN108544839B (en) | 2018-05-07 | 2018-05-07 | Double-sided continuous vacuum thermal transfer printing system |
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| Publication Number | Publication Date |
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| CN108544839A CN108544839A (en) | 2018-09-18 |
| CN108544839B true CN108544839B (en) | 2024-07-16 |
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| CN201810425923.XA Active CN108544839B (en) | 2018-05-07 | 2018-05-07 | Double-sided continuous vacuum thermal transfer printing system |
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| CN112297599A (en) * | 2019-07-25 | 2021-02-02 | 天津市升发科技股份有限公司 | Automatic rendition aluminium alloy equipment of evacuation |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208324509U (en) * | 2018-05-07 | 2019-01-04 | 广东水利电力职业技术学院（广东省水利电力技工学校） | A kind of two-sided continuous vacuum thermal transfer printing system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2555998Y (en) * | 2002-07-02 | 2003-06-18 | 刘云哲 | Multifunction slide double side curved face film coating machine |
| CN203317870U (en) * | 2012-08-16 | 2013-12-04 | 东莞市华立实业股份有限公司 | A thermal transfer film machine with improved structure |
| TW201607785A (en) * | 2014-08-22 | 2016-03-01 | 仁寶電腦工業股份有限公司 | Manufacturing process for vacuum heat transfer printing and jig thereof |
| CN204249528U (en) * | 2014-11-18 | 2015-04-08 | 李冠华 | One vacuumizes automatic transfer printing aluminium section bar equipment |
| CN204936452U (en) * | 2015-07-17 | 2016-01-06 | 深圳市集美新材料股份有限公司 | A kind of vacuum thermal transfer printing equipment |
| CN107175897A (en) * | 2017-05-15 | 2017-09-19 | 苏州福安瑞自动化科技有限公司 | The thermal transfer gold stamping device of light guide plate side and its technological process |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN208324509U (en) * | 2018-05-07 | 2019-01-04 | 广东水利电力职业技术学院（广东省水利电力技工学校） | A kind of two-sided continuous vacuum thermal transfer printing system |
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