Double-layer planar gold stamping printing process and processing equipment thereof

Abstract

The present application relates to the technical field of gold stamping printing, and discloses a double-layer planar gold stamping printing process and a processing equipment thereof, which comprises a fixing table and a gold stamping plate, the top of the gold stamping plate is fixedly connected with a fixing column, the top of the fixing column is fixedly connected with a movable telescopic support frame, the gold stamping plate is arranged above the fixing table, a coiling structure is coaxially arranged above the gold stamping plate, a driving structure for rotating the coiling structure relative to the gold stamping plate is further connected to the coiling structure, a gold foil paper is installed on the coiling structure, and the surface of the gold foil paper is attached to the bottom surface of the gold stamping plate; the stable fixation of the paper is realized by generating a pressure difference on the surface of the processed paper, the pressure difference pushes the processed paper to tightly adhere to the adsorption surface, the need for a complex mechanical clamping device is avoided, the manufacturing and maintenance costs of the processing equipment are greatly reduced, the operation convenience is improved, and the suction force provided by the negative pressure system can be adjusted according to different paper types and thicknesses, thereby increasing the production flexibility.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of gold stamping printing, in particular to a double-layer flat gold stamping printing process and a processing equipment thereof. BACKGROUND

[0002] Gold stamping printing is a special printing technique that transfers metal or color foil to the surface of printed matter through certain pressure and heat, making it present a unique metallic luster and rich layers. This technique is often used on high-end packaging, trademark design, book covers, greeting cards, certificates, and various advertisements and promotional materials to enhance the visual effect of products and brand image. Gold stamping process mainly includes hot gold stamping and cold gold stamping. Hot gold stamping is to press metal foil or color foil onto materials through heating and pressing, suitable for various paper, leather and other materials; while cold gold stamping is to paste metal foil onto printed matter by using adhesive, suitable for heat-sensitive materials. Gold stamping printing not only enhances the visual effect and improves the product level, but also creates rich and varied decorative effects through different colors of metal foil, different gold stamping areas and diversified pattern designs. However, the complexity of gold stamping process is relatively high, and the requirements for technology and operators are also relatively high, so the cost is relatively high compared with general printing. However, gold stamping printing still occupies an irreplaceable position in various high-end printed matter due to its unique charm and effect.

[0003] The existing gold stamping printing equipment faces many problems when carrying out double-layer flat gold stamping processing. Since this technology requires secondary gold stamping, the precision requirement of the equipment is extremely high. During the entire printing process, the paper cannot move at all, otherwise it will lead to inaccurate gold stamping position, affecting the quality of the final product. Therefore, this high-precision operation requirement makes it difficult for the existing gold stamping printing equipment to complete the task of double-layer flat gold stamping. If a device capable of achieving such processing is used, the cost is usually high, which is not conducive to cost control. In addition, during the continuous processing of the gold stamping printing equipment, the surface temperature of the gold foil paper (electrochemical aluminum) after each printing is relatively high. If the winding is carried out immediately, the high temperature will accumulate in the winding structure, which not only may damage the winding mechanism and shorten its service life, but also will affect the subsequent production. At the same time, a large amount of gold foil paper (electrochemical aluminum) is wasted in this printing method, and the low utilization efficiency leads to increased production cost. SUMMARY

[0004] (I) The technical problems solved: In view of the deficiencies of the prior art, the present application provides a double-layer flat gold stamping printing process and its processing equipment, which can fix the processed paper when processing double-layer flat gold stamping, and the fixing structure is low in cost, and can also assist in heat dissipation of the fixed paper, and the equipment not only has high utilization efficiency of gold foil paper, but also can reduce the heat accumulation of gold foil paper in the winding structure, solves the problems of the existing equipment that cannot process double-layer flat gold stamping or the cost of the equipment that can process is too high, the utilization efficiency of gold foil paper is low, and the continuous winding of gold foil paper is easy to cause the winding structure to accumulate heat, which affects the processing and service life.

[0005] (II) Technical scheme: In order to achieve the above-mentioned purpose of fixing the processed paper when processing double-layer flat gold stamping, and the fixing structure is low in cost, and can also assist in heat dissipation of the fixed paper, and the equipment not only has high utilization efficiency of gold foil paper, but also can reduce the heat accumulation of gold foil paper in the winding structure, the present application provides the following technical scheme: A double-layer flat gold stamping printing processing equipment, comprising a fixing table and a gold stamping plate, the top of the gold stamping plate is fixedly connected with a fixed column, the top of the fixed column is fixedly connected with a movable telescopic support frame, the gold stamping plate is arranged above the fixing table, a winding structure is coaxially arranged above the gold stamping plate, a driving structure is further connected to the winding structure to rotate relative to the gold stamping plate, a gold foil paper is installed on the winding structure, and the surface of the gold foil paper is attached to the bottom surface of the gold stamping plate.

[0006] Preferably, the winding structure comprises a winding roller, a winding motor, a connecting horizontal plate and a rotating plate, the winding roller is arranged on both sides of the gold stamping plate, the winding motor is connected to the winding roller, the connecting horizontal plate is connected between the winding rollers on both sides, the connecting horizontal plate is rotatably connected between the winding rollers on both sides, the connecting horizontal plates on both sides are connected through the rotating plate, the rotating plate is provided with a rotating hole in the center, the rotating hole is coaxially rotatably connected to the fixed column, a rotating ring is further arranged above the rotating hole, the rotating ring is fixedly connected between the rotating plate and the rotating hole, the rotating ring is connected to the driving structure, the winding motor is fixed to the connecting horizontal plate, and the gold foil paper is arranged on the winding rollers on both sides at both ends.

[0007] Preferably, the driving structure comprises a driving motor and a transmission belt, the driving motor is fixedly arranged on the support frame, one end of the transmission belt is connected to the bottom of the driving motor, and the other end of the transmission belt is connected to the rotating ring.

[0008] Preferably, the fixing table is provided with a gas passage, the gas passage is provided with a pressure lower than the pressure of the surrounding environment of the processing equipment, the surface of the fixing table is further provided with a plurality of negative pressure holes connected with the gas passage, the negative pressure holes are provided with a negative pressure baffle above, the negative pressure baffle and the surface of the fixing table are provided with a negative pressure cavity, the negative pressure holes are connected with the negative pressure cavity, the negative pressure baffle is further provided with an adsorption surface connected with the negative pressure cavity, and the processed paper is placed above the adsorption surface.

[0009] Preferably, the fixing table is provided with a gas passage, the gas passage is provided with a pressure lower than the pressure of the surrounding environment of the processing equipment, the surface of the fixing table is further provided with a plurality of negative pressure holes connected with the gas passage, the negative pressure holes are provided with a negative pressure baffle above, the negative pressure baffle and the surface of the fixing table are provided with a negative pressure cavity, the negative pressure holes are connected with the negative pressure cavity, the negative pressure baffle is further provided with an adsorption surface connected with the negative pressure cavity, and the processed paper is placed above the adsorption surface.

[0010] Preferably, the adsorption surface on the negative pressure baffle can be replaced according to the shape and size of the processed paper, and the area of the adsorption surface is smaller than the area of the processed paper.

[0011] Preferably, the surface of the fixing table is provided with a mounting groove, and the negative pressure baffle is mounted in the mounting groove.

[0012] Preferably, the support frame is fixedly installed on the side surface of the fixing table.

[0013] The double-layer plane gold stamping printing process comprises:

[0014] S1, placing the processed paper above the adsorption surface and starting the air pump to generate negative pressure in the negative pressure cavity, so that the processed paper is fixed on the adsorption surface by the pressure difference generated on the upper and lower surfaces of the processed paper;

[0015] S2, adjusting the position of the support frame to make the gold stamping plate above the processed paper;

[0016] S3, starting the gold stamping plate to heat the gold foil paper to a pre-set shape;

[0017] S4, driving the gold stamping plate to press the processed paper through the support frame, so that the gold foil paper matched with the pre-set shape is peeled off and transferred on the processed paper;

[0018] S5, the gold stamping plate is lifted, the winding structure is driven to rotate through the driving structure, the unpeeled gold foil paper is located below the pre-set shape of the gold stamping plate for heating, and then the gold stamping plate is pressed again to complete the second plane gold stamping.

[0019] Compared with the prior art, the double-layer plane gold stamping printing process and the processing equipment provided by the application have the following beneficial effects:

[0020] 1. The double-layer flat gold stamping printing process and its processing equipment, through the cooperation of the fixed table structure, negative pressure baffle structure and adsorption surface structure, compared with the traditional technical structure, it cannot process double-layer flat gold stamping or the cost of the equipment that can process is too high, and the equipment realizes the stable fixation of the paper by generating a pressure difference on the surface of the processed paper, the pressure difference pushes the processed paper to tightly adhere to the adsorption surface, the structure uses negative pressure to fix the paper, avoiding the need for complex mechanical clamping devices, greatly reducing the manufacturing and maintenance cost of the equipment, and this structure can realize the rapid fixation and release of the paper, improving the convenience of operation and the overall efficiency of the production line, and the suction force provided by the negative pressure system can be adjusted according to different types and thicknesses of paper, making the equipment more widely applicable and increasing the flexibility of production.

[0021] 2. The double-layer flat gold stamping printing process and its processing equipment, through the cooperation of the fixed table structure, negative pressure baffle structure, adsorption surface structure, negative pressure cavity structure and air pump structure, compared with the traditional technical structure, it cannot cool the processed paper in the processing area, and when the processed paper is fixed on the fixed table in the equipment, due to the gas flowing between the processed paper and the negative pressure baffle, this gas flow will absorb part of the heat on the surface of the paper and take away these heat with the airflow, this mechanism is equivalent to providing a natural cooling system for the processed paper, this cooling effect can reduce the surface temperature of the paper, prevent overheating from damaging the paper and the gold foil paper, thereby improving the overall quality and effect of gold stamping, at the same time, this also helps to improve the efficiency and repeatability of the processing process, maintains the consistency and high quality standard of the product.

[0022] 3. The double-layer flat gold stamping printing process and its processing equipment, through the cooperation of the rotating plate structure, drive motor structure and gold stamping plate structure, compared with the traditional technical structure, when continuously winding the gold foil paper, it is easy to cause the winding structure to accumulate heat, affecting the processing and its service life, and the utilization efficiency of the gold foil paper is low, and the equipment can effectively utilize the unused area of the gold foil paper by rotating the gold foil paper after each printing, thereby improving the utilization area of the gold foil paper, and by maximizing the use area of the gold foil paper, the material cost per unit product is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a three-dimensional structure schematic diagram of the double-layer flat gold stamping printing processing equipment of the present application.

[0024] Figure 2Structure front view of double-layer plane gilding printing processing equipment of the present application;

[0025] Figure 3 Structure side view of double-layer plane gilding printing processing equipment of the present application;

[0026] Figure 4 Structure top view of double-layer plane gilding printing processing equipment of the present application;

[0027] Figure 5 Structure A-A sectional view of double-layer plane gilding printing processing equipment of the present application;

[0028] Figure 6 Structure partial sectional view of double-layer plane gilding printing processing equipment of the present application;

[0029] Figure 7 Three-dimensional schematic view of double-layer plane gilding printing processing equipment winding structure after rotation of the present application;

[0030] Figure 8 Side view of double-layer plane gilding printing processing equipment winding structure after rotation of the present application;

[0031] Figure 9 Three-dimensional structure exploded view of double-layer plane gilding printing processing equipment of the present application.

[0032] In the figure: 1-fixed table, 2-gilding plate, 3-fixed column, 4-support frame, 5-gold foil paper, 6-winding roller, 7-winding motor, 8-connection cross plate, 9-rotating plate, 10-rotating ring, 11-driving motor, 12-transmission belt, 13-gas passage, 14-negative pressure hole, 15-negative pressure baffle, 16-negative pressure cavity, 17-suction surface, 18-air pump, 19-mounting groove. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0034] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4, double-layer plane gold stamping printing processing equipment, including fixed platform 1, gold stamping plate 2, support frame 4 is fixedly installed on the side of fixed platform 1, and the support frame 4 allows the adjustability of the height and position of the gold stamping plate 2. By adjusting the position of the gold stamping plate 2 relative to the paper, accurate alignment and uniform pressure distribution during the gold stamping process can be ensured. And the support frame 4 provides stable support for the gold stamping plate 2, ensuring that the gold stamping plate 2 does not move or deviate from the preset position due to external factors such as vibration during operation during the gold stamping process. The main function of the gold stamping plate 2 is to heat and stamp the gold foil paper 5, accurately transferring the preset pattern or text onto the paper. The top of the gold stamping plate 2 is fixedly connected with a fixed column 3, and the top of the fixed column 3 is fixedly connected with a movable telescopic support frame 4. The gold stamping plate 2 is arranged above the fixed platform 1, and a coiling structure is coaxially arranged above the gold stamping plate 2. The coiling structure is also connected with a driving structure that allows it to rotate relative to the gold stamping plate 2. The coiling structure is installed with gold foil paper 5, and the surface of the gold foil paper 5 is attached to the bottom surface of the gold stamping plate 2. Figure 1 、 Figure 2 When the coiling structure rotates, the gold foil paper 5 rotates relative to the surface of the gold stamping plate 2, as shown in Figure 7 and Figure 8 .

[0035] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 9, the winding structure includes winding rollers 6, winding motors 7, connecting cross plates 8, rotating plates 9, the winding rollers 6 are arranged on both sides of the gilding plate 2, the winding rollers 6 are mainly used for storing gold foil paper 5, so that the gold foil paper 5 can be properly managed before and after use. During the gilding process, it is very important to maintain the smoothness and correct tension of the gold foil paper 5, the winding roller 6 helps to maintain the tension of the gold foil paper 5 through its structural design, avoiding wrinkles or breaks during printing. At the same time, during the gilding printing process, the gold foil paper 5 needs to be supplied from one end to the gilding position and recycled to the other end after use. The winding roller 6 ensures that the gold foil paper 5 can smoothly perform this supply and recycling process, supporting continuous production operations. The winding roller 6 is connected with the winding motor 7, the winding motor 7 is the power source, which is responsible for driving the rotation of the winding roller 6. By controlling the speed and direction of the winding motor 7, the conveying speed and direction of the gold foil paper 5 can be accurately controlled, so as to adapt to different gilding needs and production rhythm. The two winding rollers 6 are connected through the connecting cross plates 8, the connecting cross plates 8 are arranged on both sides of the winding roller 6 and are rotatably connected between the winding roller 6, the main function of the connecting cross plates 8 is to connect the winding rollers 6 on both sides to form a stable structure. This connection ensures the stability and symmetry of the winding roller 6 during operation, which helps to evenly wind and unwind the gold foil paper 5, avoiding paper tearing or uneven winding caused by imbalance. The two connecting cross plates 8 are connected through the rotating plates 9, the rotating plates 9 are provided with rotating holes in the center, the rotating holes are coaxially rotatably connected to the fixed column 3, and the rotating plates 9 are designed with rotating holes, which allows it to rotate on the fixed column 3. This rotating function allows the entire winding structure to adjust the position as needed to adapt to different operation needs, such as adjusting the alignment of the gold foil paper 5 or changing the position in multiple gilding operations. The rotating hole is also provided with a rotating ring 10 above, the rotating ring 10 is a key part of connecting the driving structure and the winding structure. It receives power from the driving motor 11 and effectively converts this power into rotational motion of the winding structure. The rotating ring 10 is fixedly connected between the rotating plate 9, the rotating ring 10 is connected to the driving structure, the winding motor 7 is fixed on the connecting cross plate 8, and the gold foil paper 5 is arranged on both ends of the winding roller 6.

[0036] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 9, the driving structure includes a driving motor 11, a transmission belt 12, the driving motor 11 is fixedly arranged on the support frame 4, the bottom of the driving motor 11 is connected with one end of the transmission belt 12, and the other end of the transmission belt 12 is connected with the rotating ring 10. During processing, the gilding plate 2 is located above the processed paper by adjusting the position of the support frame 4, and the gilding plate 2 is started to heat the gold foil paper 5 to a pre-set shape, then the support frame 4 drives the gilding plate 2 to press the processed paper, so that the gold foil paper 5 matched with the pre-set shape is peeled off and transferred on the processed paper. After the first gilding printing is completed, the gilding plate 2 is lifted by the support frame 4, and the winding structure and the gold foil paper 5 are driven to rotate by the driving structure, so that the unpeeled gold foil paper 5 is located below the pre-set shape of the gilding plate 2 for heating, then the gilding plate 2 presses the processed paper again to complete the second plane gilding, please refer to Figure 1 、 Figure 2 and Figure 7 、 Figure 8 between the motion state. Because in the first gilding printing process, the specific part of the gold foil paper 5 is heated by contacting the heated gilding plate 2. And in the process of the second gilding printing, the part of the gold foil paper 5 is rotated out of the heating area, so that it is exposed to a lower temperature environment, and the gold foil paper 5 is cooled.

[0037] Please refer to Figure 1 、 Figure 5 、 Figure 6 and Figure 9The fixed table 1 is provided with a gas passage 13. The gas passage 13 is a passage designed inside the fixed table 1 for managing and guiding air flow. It is connected to an external air pump 18, which can extract or press air to adjust the pressure in the negative pressure cavity 16. The pressure in the gas passage 13 is lower than the pressure of the environment surrounding the device. The surface of the fixed table 1 is also provided with a plurality of negative pressure holes 14 connected to the gas passage 13. The negative pressure holes 14 are the connection points between the gas passage 13 and the outside world. They are located on the surface of the fixed table 1 and are directly connected to the gas passage 13. Through these holes, air in the gas passage 13 can be extracted, thereby forming a negative pressure cavity 16 between the negative pressure baffle 15 and the fixed table 1. The negative pressure baffle 15 is a component set on the surface of the fixed table 1, directly covering the negative pressure holes 14. It forms the negative pressure cavity 16 with the fixed table 1 and provides stable fixation for the paper being processed through the adsorption surface 17 on its surface. The design of the negative pressure baffle 15 can be adjusted according to different paper sizes and shapes to adapt to different printing needs. The negative pressure baffle 15 is provided with the negative pressure cavity 16 between its surface and the fixed table 1. The negative pressure cavity 16 is formed by the space between the negative pressure baffle 15 and the surface of the fixed table 1. When the air in the gas passage 13 is extracted, the air pressure in the negative pressure cavity 16 decreases, forming a low-pressure area. This low-pressure area can firmly adsorb the paper placed on the adsorption surface 17 due to the pressure difference, thereby maintaining stability during the printing process. The negative pressure holes 14 are connected to the negative pressure cavity 16. The negative pressure baffle 15 is also provided with an adsorption surface 17 connected to the negative pressure cavity 16. The adsorption surface 17 is a specific area designed on the negative pressure baffle 15 to directly contact the paper being processed. The adsorption surface 17 is usually smaller than the area of the paper being processed, ensuring that the edges of the paper are not limited by the adsorption area, while the central processing part can be effectively fixed. Through the pressure difference formed by the negative pressure cavity 16, the adsorption surface 17 can help the paper maintain its position during the printing process.

[0038] Please refer to Figure 3 , Figure 5 , Figure 6 and Figure 9The fixed table 1 is provided with a gas pump 18 on the side, which is connected with the gas channel 13. The main function of the gas pump 18 is to control the air pressure in the gas channel 13. By sucking or pressing air, the gas pump 18 can adjust the pressure in the negative pressure cavity 16, so as to generate negative pressure, i.e. lower pressure than the surrounding environment. This negative pressure is used to adsorb and fix the paper to be processed placed on the adsorption surface 17, ensuring the stability of the position of the paper during the gilding printing process. Before printing, the gas pump 18 sucks air so that the paper is adsorbed on the adsorption surface 17. After printing, the air pressure needs to be adjusted so that the paper can be easily removed. The shape of the adsorption surface 17 on the negative pressure baffle 15 can be changed according to the shape and size of the paper to be processed. The area of the adsorption surface 17 is smaller than that of the paper to be processed. The fixed table 1 is provided with mounting grooves 19, and the negative pressure baffle 15 is mounted in the mounting grooves 19. The mounting grooves 19 are mainly used to fix and support the negative pressure baffle 15. These grooves are designed on the surface of the fixed table 1 to ensure the accurate position of the negative pressure baffle 15, which is aligned with the negative pressure hole 14 and other key components, so as to ensure the normal operation of the system. At the same time, the mounting grooves 19 can maintain the sealing of the negative pressure cavity 16 and the stability of the overall mechanical structure, so as to form an effective low-pressure environment between the paper to be processed placed on the adsorption surface 17 and the negative pressure cavity 16. In addition, the design of the mounting grooves 19 usually allows quick replacement of the negative pressure baffle 15, which is convenient for maintenance of the equipment and adaptation to different sizes or shapes of paper.

[0039] The double-layer flat gilding printing process comprises the following steps:

[0040] S1, placing the paper to be processed on the adsorption surface 17 of the equipment. Start the gas pump 18 on the side of the equipment to suck the air below the adsorption surface 17 to form the negative pressure cavity 16. Because the pressure in the negative pressure cavity 16 is lower than the surrounding environment, the paper is tightly adsorbed and fixed on the adsorption surface 17, which ensures the stability of the position of the paper during the entire gilding process and avoids printing errors caused by movement or sliding;

[0041] S2, adjusting the supporting frame 4 according to the position of the paper to accurately align the gilding plate 2 above the paper. The supporting frame 4 can move and accurately adjust the position of the gilding plate 2 to ensure the alignment between the gilding plate 2 and the paper;

[0042] S3, starting the gilding plate 2 to heat the gold foil paper 5 to the pre-set shape;

[0043] S4, pressing the heated gold foil paper 5 to the paper to be processed by moving the supporting frame 4. Under appropriate pressure and temperature, part of the preheated gold foil paper 5 will be peeled off from the carrier film and transferred to the paper to form a gilding pattern;

[0044] S5, the gilding plate 2 is lifted, and the winding structure is driven to rotate by the driving structure, so that the unpeeled gold foil paper 5 is located below the pre-set shape of the gilding plate 2 for heating, and then the gilding plate 2 is pressed again to complete the second plane gilding of the processed paper.

[0045] Working principle: When fixed, the processed paper is placed above the adsorption surface 17 and the air pump 18 is started to exhaust air from the gas channel 13. At this time, the gas volume in the gas channel 13 and the negative pressure cavity 16 connected therewith is reduced, and the processed paper is placed on the adsorption surface 17, so that the negative pressure cavity 16 forms a sealed space, so that the pressure in the negative pressure cavity 16 is gradually less than the ambient pressure, and the processed paper is affected by the external pressure, the external pressure is higher than the pressure in the negative pressure cavity 16, the pressure difference pushes the processed paper to tightly adhere to the adsorption surface 17, so as to realize the stable fixation of the paper. At the same time, due to the fact that the processed paper and the negative pressure baffle 15 are not completely sealed, part of the gas will flow between the processed paper and the negative pressure baffle 15, so that the gas in the negative pressure cavity 16 and the gas channel 13 flows. When the processed paper is printed, this gas flow will absorb part of the heat on the surface of the paper, and take away these heat with the airflow. This mechanism is equivalent to providing a natural cooling system for the processed paper. This cooling effect can reduce the surface temperature of the paper, prevent overheating from damaging the paper and the gold foil paper 5, thereby improving the overall quality and effect of gilding. At the same time, this also helps to improve the efficiency and repeatability of the processing process, and maintains the consistency and high quality standard of the product.

[0046] In the process of processing, the gilding plate 2 is located above the paper to be processed by adjusting the position of the support frame 4, and the gilding plate 2 is started to heat the gold foil paper 5 to the pre-set shape, then the gilding plate 2 is pressed tightly to the paper to be processed by the support frame 4, so that the gold foil paper 5 matched with the pre-set shape is peeled off and transferred to the paper to be processed. After the first gilding printing is completed, the gilding plate 2 is lifted by the support frame 4, and the winding structure and the gold foil paper 5 are rotated by the driving structure, so that the unpeeled gold foil paper 5 is located below the pre-set shape of the gilding plate 2 for heating, and then the gilding plate 2 is pressed tightly to the paper to be processed again to complete the second plane gilding. During the first gilding printing process, the specific part of the gold foil paper 5 is heated by contacting the gilding plate 2. During the second gilding printing process, the part of the gold foil paper 5 is rotated out of the heating area, so that it is exposed to a lower temperature environment, and the gold foil paper 5 is cooled. This cooling process helps to maintain the structural stability and functionality of the gold foil paper 5, avoiding damage or deformation of the gold foil due to overheating. At the same time, by rotating the gold foil paper 5, the unused area of the gold foil paper 5 can be effectively utilized, thereby increasing the utilization area of the gold foil paper 5, and by maximizing the use area of the gold foil paper 5, the material cost per unit product is reduced. The gold foil paper 5 is one of the materials with higher cost in gilding printing, so increasing its use efficiency directly affects the production cost.

[0047] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0048] While embodiments of the application have been shown and described, it is to be understood that the application is not limited to the details of the embodiments described, since numerous modifications and changes can be made to the embodiments without departing from the spirit and scope of the application as defined by the appended claims and their equivalents.

Claims

1. Double-layer plane gilding printing processing equipment, including fixed platform (1), gilding plate (2), the top of gilding plate (2) is fixedly connected with fixed column (3), the top of fixed column (3) is fixedly connected with movable telescopic support frame (4), gilding plate (2) is arranged above fixed platform (1), characterized in that: The gilding plate (2) is coaxially provided with a winding structure above, the winding structure is further connected with a driving structure for rotating relative to the gilding plate (2), the winding structure is installed with a gold foil paper (5), the surface of the gold foil paper (5) is attached to the bottom surface of the gilding plate (2); when the winding structure rotates, the gold foil paper (5) rotates relative to the surface of the gilding plate (2). The winding structure comprises a rotating plate (9), the rotating plate (9) is provided with a rotating hole in the center, the rotating hole is coaxially connected with the fixed column (3), the rotating hole is further provided with a rotating ring (10) above, the rotating ring (10) is fixedly connected between the rotating plate (9), and the rotating ring (10) is connected with the driving structure.

2. The double layer flat stamping and printing processing apparatus according to claim 1, characterized in that: The winding structure further comprises a winding roller (6), a winding motor (7) and a connecting horizontal plate (8), the winding roller (6) is arranged on both sides of the gilding plate (2), the winding roller (6) is connected with the winding motor (7) for driving the rotation, the winding roller (6) on both sides is connected through the connecting horizontal plate (8), the connecting horizontal plate (8) is arranged on both sides of the winding roller (6) and is rotatably connected with the winding roller (6), both sides of the connecting horizontal plate (8) are connected through the rotating plate (9), the winding motor (7) is fixed on the connecting horizontal plate (8), and both ends of the gold foil paper (5) are arranged on the winding roller (6) on both sides.

3. The double layer flat stamping and printing processing apparatus according to claim 1, characterized in that: The driving structure comprises a driving motor (11) and a transmission belt (12), the driving motor (11) is fixedly arranged on the support frame (4), one end of the driving motor (11) is connected with the transmission belt (12), and the other end of the transmission belt (12) is connected with the rotating ring (10).

4. The double layer flat stamping and printing processing apparatus according to claim 1, characterized in that: The fixed table (1) is provided with a gas passage (13) inside, the pressure in the gas passage (13) is less than the pressure of the surrounding environment of the processing equipment, and a plurality of negative pressure holes (14) in communication with the gas passage (13) are formed in the surface of the fixed table (1). The negative pressure baffle (15) is arranged above the negative pressure hole (14), the negative pressure cavity (16) is arranged between the negative pressure baffle (15) and the surface of the fixed table (1), the negative pressure hole (14) is in communication with the negative pressure cavity (16), the adsorption surface (17) in communication with the negative pressure cavity (16) is further formed in the negative pressure baffle (15), and the processed paper is placed above the adsorption surface (17).

5. The double layer flat stamping and printing processing apparatus according to claim 4, characterized in that: The fixed table (1) is provided with a gas pump (18) in communication with the gas passage (13).

6. The double layer flat stamping and printing processing apparatus according to claim 4, characterized by: The shape of the adsorption surface (17) on the negative pressure baffle (15) can be replaced according to the shape and size of the processed paper, and the area of the adsorption surface (17) is less than the area of the processed paper.

7. The double layer flat stamping and printing processing apparatus according to claim 4, characterized by: The surface of the fixed table (1) is provided with a mounting groove (19), and the negative pressure baffle (15) is mounted in the mounting groove (19).

8. The double layer flat stamping and printing processing apparatus according to claim 1, characterized by: The support frame (4) is fixedly mounted on the side surface of the fixed table (1).

9. A double-layered flat gold stamping printing process, which is performed by using the double-layered flat gold stamping printing apparatus according to any one of claims 1 to 8, characterized in that: The processing process comprises the following steps: S1, the paper to be processed is placed above the adsorption surface (17), and the air pump (18) is started to generate negative pressure in the negative pressure cavity (16), so that the paper to be processed is fixed on the adsorption surface (17) by the pressure difference generated by the upper and lower surfaces of the paper to be processed; S2, the gilding plate (2) is located above the paper to be processed by adjusting the position of the supporting frame (4); S3, the gilding plate (2) is started to heat the gold foil paper (5) to a pre-set shape; S4, the gilding plate (2) is pressed tightly by the supporting frame (4) to make the gold foil paper (5) which matches the pre-set shape be stripped and transferred to the paper to be processed; S5, the gilding plate (2) is lifted, and the winding structure is driven to rotate by the driving structure, so that the gold foil paper (5) which has not been stripped is located below the pre-set shape of the gilding plate (2) for heating, and then the gilding plate (2) is pressed tightly again to complete the second plane gilding.

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