Digital gilding press

Abstract

The invention relates to a digital gilding press which comprises a press body, an unwinding device, a spraying device, a gilding assembly and a winding device are sequentially arranged on the press body according to the feeding and discharging direction of raw materials, a machining frame is arranged on the press body, and the spraying device and the gilding assembly are arranged on the machining frame. The gold stamping assembly comprises a supporting shell, a middle frame is arranged in the supporting shell, a guide rail is arranged in the outward direction of the middle frame, a gold stamping film unwinding device and a gold stamping film winding device are arranged on the two sides of the middle frame through the guide rail, and a gold stamping film overturning device is arranged in the middle frame. A gilding film adjusting device is arranged on one side of the gilding film overturning device, and a gilding pressing roller and a stripping device are further arranged on the machining frame body. The gold stamping film has the beneficial effects that the patterns can be more three-dimensional and layered, the texture of the patterns is improved, the gold stamping film can be effectively utilized, and waste of the gold stamping film is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of hot stamping, in particular to a digital hot stamping machine. Background Art

[0002] With the progress of society and the improvement of people's quality of life, the role of commodity packaging in marketing is becoming increasingly significant. Therefore, packaging design is becoming increasingly diversified, and packaging technology is constantly innovating to meet the market's multiple demands for beauty, texture and environmental protection. Among many packaging technologies, hot stamping is a commonly used surface decoration technology. Hot stamping is a process that uses the principle of heat transfer to transfer the aluminum layer in electroplated aluminum to the surface of the substrate to form a special metal effect, thereby increasing the texture and visual effect of the packaging. However, traditional hot stamping equipment has certain limitations. In the printing process, in order to improve production efficiency, A roll of printing film usually has two sets of patterns on the wide width and is printed at the same time. Correspondingly, in the hot stamping process, two sets of hot stamping films are also needed to match the two sets of patterns on the printing film. However, in actual production, when the order quantity of printing film is small, one roll of hot stamping film is sufficient to complete the hot stamping work. Nevertheless, due to the process requirements that two sets of hot stamping films must be used at the same time, this results in a roll of hot stamping film not being completely used up, resulting in waste. Since the hot stamping films used for each hot stamping may be different, the remaining hot stamping films are difficult to use again in the next order, further exacerbating the problem of material waste. Summary of the Invention

[0003] In order to overcome the above-mentioned shortcomings of the existing problems, the present invention provides a digital hot stamping machine, which can effectively use the hot stamping film in a one-roll-two-hot stamping manner, thereby reducing waste.

[0004] The technical solution adopted by the present invention to solve its technical problems is as follows: A digital hot stamping machine includes a machine body. On the machine body, according to the feeding and discharging directions of the raw materials, a unwinding device, a spraying device, a hot stamping assembly, and a winding device are sequentially arranged. A processing frame is arranged on the machine body, and the spraying device and the hot stamping assembly are arranged on the processing frame. The hot stamping assembly includes a support housing. A middle frame is arranged in the support housing. Guide rails are arranged in the outward direction of the middle frame. A hot stamping film unwinding device and a hot stamping film winding device are arranged on both sides of the middle frame through the guide rails. A hot stamping film turning device is arranged in the middle frame. The hot stamping film turning device includes a pair of inclined air rollers. Adjusting connection blocks are arranged at both ends of the air rollers, and the air rollers are arranged in the middle frame through the adjusting connection blocks. The air rollers include a first air roller and a second air roller, and the first air roller and the second air roller are arranged staggeredly in the middle frame. A hot stamping film adjusting device is arranged on one side of the hot stamping film turning device, and the position of the hot stamping film adjusting device is close to one side of the support housing. A hot stamping pressure roller and a peeling device are also arranged on the processing frame. The hot stamping pressure roller is arranged at the bottom position close to the hot stamping film turning device, and the peeling device is arranged at the bottom position of the hot stamping film winding device position.

[0005] Preferably, the hot stamping film unwinding device includes two side mounting plates. Sliders for connecting with the guide rails are arranged on the mounting plates. A driving lead screw is arranged through the top positions of the two side mounting plates. The driving lead screw passes through the support housing and is connected with a driving motor. A number of conveying rollers are arranged at the bottom position between the mounting plates. One of the conveying rollers is connected with a hot stamping film tension detector. A pair of hot stamping film unwinding rollers are arranged at the middle positions of the two side mounting plates. The hot stamping film unwinding rollers are respectively arranged on the two side mounting plates. A magnetic powder unwinding device connected with the hot stamping film unwinding rollers is also arranged on the mounting plates. The structure of the hot stamping film winding device is similar to that of the hot stamping film unwinding device. The hot stamping film unwinding rollers are set as hot stamping film winding rollers, and the magnetic powder unwinding device is set as a winding motor.

[0006] The hot stamping film adjusting device includes a vertical roller. Two sets of upper and lower cantilevers are arranged on the inner side of the support housing. Second guide rails are arranged on the cantilevers. A moving plate is arranged between the upper and lower second guide rails on the cantilevers. Adjusting connection blocks are arranged at both ends of the moving plate, and the vertical roller is arranged on the moving plate through the adjusting connection blocks. An adjusting lead screw is arranged through the bottom of the moving plate. One end of the adjusting lead screw passes through the support housing and is connected with an adjusting motor.

[0007] Preferably, the adjusting connection block includes a base. An L-shaped plate is fixedly arranged on the top of the base. A movable block is arranged in the base. An adjusting screw is arranged through the L-shaped plate. The adjusting screw passes through the L-shaped plate and the movable block at the same time. A locking device is also arranged on one side of the L-shaped plate.

[0008] Preferably, the unwinding device includes an unwinding frame body, on which an unwinding roller is arranged. Along the unwinding direction of the unwinding roller, an unwinding deviation rectifying device, an unwinding tension detector, a dust removing device and a corona treatment device are sequentially arranged on the unwinding frame body.

[0009] Preferably, two groups of spraying devices are arranged on the processing frame body, one in front and the other behind. The spraying device includes a digital nozzle, and a UV curing device is arranged on one side of the digital nozzle.

[0010] Preferably, the winding device includes a winding frame body, on which a winding roller is arranged. A winding deviation adjusting device is arranged on one side of the winding roller close to the hot stamping assembly, a winding tension detector is arranged above the winding deviation adjusting device, a winding pressure roller is arranged on one side of the winding tension detector, and the winding pressure roller is arranged above the winding roller.

[0011] The beneficial effects of the present invention are as follows: through the arrangement of the spraying device, the pattern can be made more three-dimensional and hierarchical, improving the texture of the pattern; through the hot stamping film flipping device, the position of the hot stamping film can be adjusted to realize double hot stamping with one roll, effectively utilizing the hot stamping film and avoiding waste of the hot stamping film; at the same time, with the settings of the hot stamping film unwinding device, the hot stamping film winding device, the hot stamping film adjusting device and the adjusting connecting block that can be adjusted, the hot stamping position of the hot stamping film can be flexibly adjusted from multiple aspects, improving the accuracy of hot stamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention will be further described below with reference to the drawings and embodiments.

[0013] Figure 1 It is a schematic diagram of the overall structure of the invention; Figure 2 It is a schematic diagram of the structure of the unwinding device; Figure 3 It is a schematic diagram of the structure of the processing frame body; Figure 4 It is a schematic diagram of the structure of the winding device; Figure 5 It is a schematic side view of the hot stamping assembly; Figure 6 It is a schematic three-dimensional structure of the hot stamping assembly; Figure 7 It is Figure 6 Schematic diagram of the structure at position A in Figure 8 It is Figure 6 Schematic diagram of the structure at position B in Figure 9 It is a schematic diagram of the structure of the adjusting connecting block; Figure 10 It is a top view of the wire-passing structure of the hot stamping film flipping device; Figure 11It is a schematic diagram of the overall processing flow.

[0014] In the figure, 1 is the machine body; 11 is the processing frame; 2 is the unwinding device; 21 is the unwinding frame; 22 is the unwinding roller; 23 is the unwinding deviation rectifying device; 24 is the unwinding tension detection; 25 is the dust removal device; 26 is the corona treatment device; 3 is the spraying device; 31 is the digital nozzle; 32 is the UV curing device; 4 is the hot stamping assembly; 41 is the support housing; 42 is the middle frame; 43 is the guide rail; 44 is the hot stamping film unwinding device; 441 is the mounting plate; 442 is the slider; 443 is the driving lead screw; 444 is the driving motor; 445 is the conveying roller; 446 is the hot stamping film tension detection; 447 is the hot stamping film unwinding roller; 448 is the magnetic powder unwinding device; 45 is the hot stamping film winding device; 457 is the hot stamping film winding roller; 458 is the winding motor; 46 is the hot stamping film flipping device; 461 is the first air roller; 462 is the second air roller; 47 is the adjusting connection block; 471 is the base; 472 is the movable block; 473 is the adjusting screw; 474 is the locking device; 475 is the L-shaped plate; 48 is the hot stamping film adjusting device; 481 is the vertical roller; 482 is the cantilever; 483 is the second guide rail; 484 is the moving plate; 485 is the adjusting lead screw; 486 is the adjusting motor; 49 is the hot stamping pressure roller; 410 is the peeling device; 5 is the winding device; 52 is the winding roller; 53 is the winding deviation rectifying device; 54 is the winding tension detection; 55 is the winding pressure roller; 61 is the first unwinding position; 62 is the second unwinding position; 63 is the first winding position; 64 is the second winding position; 65 is the first material passing roller; 66 is the second material passing roller; 67 is the synchronous plate. Detailed implementation manners

[0015] All features disclosed in this specification, or all steps in the disclosed methods or processes, except for mutually exclusive features and / or steps, can be combined in any way.

[0016] Any feature disclosed in this specification (including any additional claims, abstract, and drawings), unless specifically stated, can be replaced by other equivalent or similar-purpose alternative features. That is, unless specifically stated, each feature is only an example in a series of equivalent or similar features.

[0017] According to Figures 1 - 11As shown in the figure, a digital hot stamping machine includes a machine body 1. Along the feeding and discharging direction of the printing film, a unwinding device 2, a spraying device 3, a hot stamping assembly 4, and a winding device 5 are sequentially arranged on the machine body 1. A processing frame 11 is arranged on the machine body 1, and the spraying device 3 and the hot stamping assembly 4 are arranged on the processing frame 11. The hot stamping assembly 4 includes a support housing 41, and a middle frame 42 is arranged in the support housing 41. The middle frame 42 is a frame composed of a plurality of connecting rods with rectangular cross-sections arranged in a rectangular pattern. Guide rails 43 are arranged in the outer direction of the middle frame 42. A hot stamping film unwinding device 44 and a hot stamping film winding device 45 are arranged on both sides of the middle frame 42 through the guide rails 43. The hot stamping film unwinding device 44 and the hot stamping film winding device 45 are arranged according to the moving direction of the printing film. A hot stamping film turning device 46 is arranged in the middle frame 42. The hot stamping film turning device 46 includes a pair of inclined air rollers. Adjusting connection blocks 47 are arranged at both ends of the air rollers, and the air rollers are arranged in the middle frame 42 through the adjusting connection blocks 47. The air rollers include a first air roller 461 and a second air roller 462, and the first air roller 461 and the second air roller 462 are arranged staggeredly in the middle frame 42. A hot stamping film adjusting device 48 is arranged on one side of the hot stamping film turning device 46, and the position of the hot stamping film adjusting device 48 is close to the support housing 41 on one side. A hot stamping pressure roller 49 and a peeling device 410 are further arranged on the processing frame 11. The hot stamping pressure roller 49 is arranged at the bottom position close to the hot stamping film turning device 46, and the peeling device 410 is arranged at the bottom position of the hot stamping film winding device 45.

[0018] The gold stamping film unwinding device 44 includes mounting plates 441 on both sides. On the mounting plates 441, there are sliders 442 for connecting with the guide rail 43. At the top position between the two mounting plates 441, a driving lead screw 443 is passed through. The driving lead screw 443 passes through the support housing 41 and is connected with a driving motor 444. By driving the driving lead screw 443 to rotate through the driving motor 444, it is possible to control the gold stamping film unwinding device 44 or the gold stamping film winding device 45, and adjust the gold stamping position of the gold stamping film on the printing film as a whole in the horizontal position in the support housing 41. At the bottom position between the mounting plates 441, there are several conveying rollers 445. One of the conveying rollers 445 is connected with a gold stamping film tension detector 446. At the middle position between the two mounting plates 441, there is a pair of gold stamping film unwinding rollers 447. The gold stamping film unwinding rollers 447 are respectively arranged on the two mounting plates 441. On the mounting plates 441, there is also a magnetic powder unwinding device 448 connected with the gold stamping film unwinding rollers 447. The structure of the gold stamping film winding device 45 is similar to that of the gold stamping film unwinding device 44. The gold stamping film unwinding rollers 447 are replaced with gold stamping film winding rollers 457, and the magnetic powder unwinding device 448 is replaced with a winding motor 458. A synchronous plate 65 is arranged between the mounting plates 441 at the relative positions of the gold stamping film unwinding device 44 and the gold stamping film winding device 45 to ensure that the positions are synchronized during movement. By arranging a pair of gold stamping film unwinding rollers 447 and gold stamping film winding rollers 457 on the gold stamping film unwinding device 44 and the gold stamping film winding device 45, a first unwinding position 61 and a second unwinding position 62 for unwinding the gold stamping film and a first winding position 63 and a second winding position 64 for winding the gold stamping film are respectively formed. At the bottom positions of the gold stamping film unwinding device 44 and the gold stamping film winding device 45, there are also a first material passing roller 65 and a second material passing roller 66 respectively. The first material passing roller 65 is arranged on one side of the gold stamping pressure roller 49, and the second material passing roller 66 is arranged above the peeling device 410.

[0019] The hot stamping film adjustment device 48 includes a vertical roller 481, which is arranged at a position aligned between the first air roller 461 and the second air roller 462. The inner side of the support shell 41 is provided with two sets of upper and lower cantilevers 482, and the cantilevers 482 are provided with second guide rails 483. A movable plate 484 is provided between the cantilevers 482 through the upper and lower second guide rails 483. Adjustment connection blocks 47 are provided at both ends of the movable plate 484. The vertical roller 481 is set on the movable plate 484 through the adjustment connection blocks 47. An adjusting screw rod 485 is provided at the bottom of the movable plate 484, and one end of the adjusting screw rod 485 passes through the supporting shell 41 and is connected to an adjusting motor 486; the adjusting motor 486 drives the adjusting screw rod 485 to rotate, so that the movable plate 484 can move along the second guide rail 483, thereby adjusting the position of the vertical roller 481 and changing the distance between the vertical roller 481 and the air roller, thereby changing the landing point of the hot stamping film after it has circled the first air roller 461, adjusting the relative lateral position between the hot stamping film on one side and the printing film, and controlling the hot stamping position.

[0020] The adjusting connecting block 47 includes a base 471, an L-shaped plate 475 is fixedly provided on the top of the base 471, a movable block 472 is provided in the base 471, an adjusting screw 473 is passed through the L-shaped plate, the adjusting screw 473 passes through the L-shaped plate 475 and the movable block 472 at the same time, and a locking device 474 is further provided on one side of the L-shaped plate 475. The two ends of the vertical roller 481 are connected to the movable block 472, and the two ends of the air roller are rotatably provided on the movable block 472; by rotating the adjusting screw 473, the movable block 472 can be moved at the bottom The seat 471 is raised and lowered for fine-tuning. By adjusting the connecting blocks 47 at both ends simultaneously, the height of the air roller can be fine-tuned. By adjusting the connecting block 47 on one side alone, the angle of the air roller can be fine-tuned. The lateral position of the vertical roller 481 can be fine-tuned. The above-mentioned adjustments can change the falling position of the hot stamping film after it passes around the first air roller 461. The locking device 474 is configured as a bolt passed through the L-shaped plate 475, with one end supporting the adjusting screw 473 and the other end being provided with a handle. Rotating the locking device 474 can fix the movement of the adjusting screw 473.

[0021] The unwinding device 2 includes an unwinding frame 21, on which an unwinding roller 22 is provided. According to the unwinding direction of the unwinding roller 22, an unwinding correction device 23, an unwinding tension detection device 24, a dust removal device 25 and a corona treatment device 26 are also provided in sequence on the unwinding frame 21.

[0022] The processing frame 11 is provided with two groups of spraying devices 3, one in front and one in the back. The spraying devices 3 include a digital print head 31 , and a UV curing device 32 is provided on one side of the digital print head 31 .

[0023] The winding device 5 includes a winding frame body 51, a winding roller 52 is arranged on the winding frame body, a winding deviation adjusting device 53 is arranged on one side of the winding roller 52 close to the hot stamping assembly 4, a winding tension detector 54 is arranged above the winding deviation adjusting device 53, a winding pressure roller 55 is arranged on one side of the winding tension detector 54, and the winding pressure roller 55 is arranged above the winding roller 52.

[0024] The unwinding tension detector 24, the winding tension detector 54 and the hot stamping film tension detector 446 detect the tension on the passing printing film or hot stamping film, and then control the speed of winding or unwinding to control the tension.

[0025] During practical use, the overall process of the device is as follows: There are two groups of left and right patterns printed on a printing film. The printing film is arranged on the unwinding roller 22, and then unwound. Then, after being adjusted by the unwinding deviation adjusting device 23, the tension detected by the unwinding tension detector 24, and the cleaning and surface treatment of the dust removal device 25 and the corona treatment device 26, the printing film enters the bottom of the machine body 1 for conveying and moves to the position of the processing frame body 11; on the processing frame body 11, the printing film is sent into the spraying device 3. The first digital nozzle 31 sprays glue on the corresponding position of the pattern on the printing film for the first time. Immediately afterwards, the UV curing device 32 cures the sprayed glue area. Then, the printing film enters below the second digital nozzle 31, receives the second spraying treatment, and is cured by another UV curing device 32. This double spraying and curing process not only increases the thickness and brightness of the pattern, but also makes the pattern more three-dimensional with a sense of hierarchy. At the same time, the two-time curing can also ensure the curing effect; after spraying and curing are completed, the printing film enters the hot stamping assembly 4, where the hot stamping process is carried out to add a metallic texture to the pattern. Finally, the printing film enters the winding device 5. Through the winding deviation adjusting device 53, the winding tension detector 54 and the winding pressure roller 55, the smooth progress of the winding process is ensured, and winding is completed on the winding roller 52.

[0026] Hot stamping process: The hot stamping film unwinding device 44 unwinds the hot stamping film from the first unwinding position 61. The hot stamping film passes through the conveying roller 445 and the first material passing roller 65, and then enters the bottom of the hot stamping pressure roller 49 to perform hot stamping with the printing film. At this time, the metal foil on the hot stamping film is transferred to the designated pattern on the printing film. After the hot stamping is completed, the printing film is separated from the hot stamping film at the position of the peeling device 410. The separated printing film enters the winding device 5 for winding. The separated hot stamping film moves upward, passes through the second material passing roller 66, and reaches the position of the first air roller 461. The hot stamping film bypasses the first air roller 461 and is deflected, moving horizontally in the support housing 41. Then the hot stamping film passes through the hot stamping film adjusting device 48, bypasses the vertical roller 481, and then returns between the first air roller 461 and the second air roller 462. Then it bypasses the second air roller 462 and moves downward, returning to the position of the first material passing roller 65, ready for the second hot stamping. At this time, the hot stamping film has shifted from the first unwinding position 61 to the second unwinding position 62. The first hot stamping corresponds to the pattern on one side of the printing film, and the second hot stamping uses the remaining part of the hot stamping film to perform hot stamping on the pattern on the other side of the printing film, achieving the effect of two hot stampings on one roll. After the hot stamping of the hot stamping film is completed and separated by the peeling device 410, it enters the conveying roller at the bottom of the hot stamping film winding device 45 through the second material passing roller 66, and finally is wound on the hot stamping film winding roller 457. At this time, the hot stamping film is wound at the second winding position 64. In addition, it is also possible to unwind from the first unwinding position 61 and the second unwinding position 62 at the same time. After hot stamping, without passing through the hot stamping film flipping device 46, winding is directly performed at the first winding position 63 and the second winding position 64 at the same time, realizing the hot stamping process of two rolls and two hot stampings.

[0027] This design is ingenious. Through the setting of the spraying device, the pattern can be made more three-dimensional and hierarchical, improving the texture of the pattern. Through the hot stamping film flipping device, the position of the hot stamping film can be adjusted to achieve two hot stampings on one roll, allowing one roll of hot stamping film to perform hot stamping on the patterns on both sides, effectively utilizing the hot stamping film and avoiding waste of the hot stamping film. At the same time, the settings of the adjustable hot stamping film unwinding device, hot stamping film winding device, hot stamping film adjusting device and adjusting connection block can flexibly adjust the hot stamping position of the hot stamping film from multiple aspects, improving the accuracy of hot stamping.

[0028] The present invention is not limited to the foregoing specific embodiments. The present invention extends to any new feature or any new combination disclosed in this specification, as well as any new method or process step or any new combination disclosed.

Claims

1. A digital gilding machine, characterized in that: It includes a machine body (1). Along the feeding and discharging direction of the printing film, a film unwinding device (2), a spraying device (3), a hot stamping assembly (4), and a winding device (5) are sequentially arranged on the machine body (1). A processing frame body (11) is arranged on the machine body (1), and the spraying device (3) and the hot stamping assembly (4) are arranged on the processing frame body (11). The hot stamping assembly (4) includes a support housing (41). A middle frame (42) is arranged in the support housing (41). A guide rail (43) is arranged on the outer side of the middle frame (42). A hot stamping film unwinding device (44) and a hot stamping film winding device (45) are arranged on both sides of the middle frame (42) through the guide rail (43). A hot stamping film flipping device (46) is arranged in the middle frame (42). The hot stamping film flipping device (46) includes a pair of inclined air rollers. Adjusting connection blocks (47) are arranged at both ends of the air rollers. The air rollers are arranged in the middle frame (42) through the adjusting connection blocks (47). The air rollers include a first air roller (461) and a second air roller (462). The first air roller (461) and the second air roller (462) are staggeredly arranged in the middle frame (42). A hot stamping film adjusting device (48) is arranged on one side of the hot stamping film flipping device (46). The position of the hot stamping film adjusting device (48) is close to one side of the support housing (41). A hot stamping pressure roller (49) and a peeling device (410) are also arranged on the processing frame body (11). The hot stamping pressure roller (49) is arranged at the bottom position close to the hot stamping film flipping device (46), and the peeling device (410) is arranged at the bottom position of the hot stamping film winding device (45).

2. The digital gilding machine according to claim 1, characterized in that: The hot stamping film unwinding device (44) includes mounting plates (441) on both sides. Sliders (442) for connecting with the guide rail (43) are arranged on the mounting plates (441). A driving lead screw (443) passes through the top positions of the mounting plates (441) on both sides. The driving lead screw (443) passes through the support housing (41) and is connected with a driving motor (444). A number of conveying rollers (445) are arranged at the bottom positions between the mounting plates (441). One of the conveying rollers (445) is connected with a hot stamping film tension detector (446). A pair of hot stamping film unwinding rollers (447) are arranged at the middle positions of the mounting plates (441) on both sides. The unwinding rollers (447) are respectively arranged on the mounting plates (441) on both sides. A magnetic powder unwinding device (448) connected with the hot stamping film unwinding rollers (447) is also arranged on the mounting plates (441). The structure of the hot stamping film winding device (45) is similar to that of the hot stamping film unwinding device (44). The hot stamping film unwinding rollers (447) are replaced with hot stamping film winding rollers (457), and the magnetic powder unwinding device (448) is replaced with a winding motor (458).

3. A digital gilding machine according to claim 1, characterized in that: The hot stamping film adjusting device (48) includes a vertical roller (481). Inside the support housing (41), there are two sets of upper and lower cantilevers (482). A second guide rail (483) is provided on the cantilever (482). A moving plate (484) is arranged between the cantilevers (482) through the second guide rails (483) on the upper and lower sides. Adjusting connection blocks (47) are arranged at both ends of the moving plate (484). The vertical roller (481) is arranged on the moving plate (484) through the adjusting connection blocks (47). An adjusting screw rod (485) penetrates through the bottom of the moving plate (484). One end of the adjusting screw rod (485) passes through the support housing (41) and is connected to an adjusting motor (486).

4. A digital gilding machine according to claim 1, characterized in that: The adjusting connection block (47) includes a base (471). An L-shaped plate (475) is fixedly arranged on the top of the base (471). An active block (472) is arranged in the base (471). An adjusting screw rod (473) penetrates through the L-shaped plate. The adjusting screw rod (473) simultaneously penetrates through the L-shaped plate (475) and the active block (472). A locking device (475) is also arranged on one side of the L-shaped plate (475).

5. A digital hot stamping machine according to claim 1, characterized in that: The unwinding device (2) includes an unwinding frame body (21). An unwinding roller (22) is arranged on the unwinding frame body (21). According to the feeding direction of the unwinding roller (22), an unwinding deviation correcting device (23), an unwinding tension detection (24), a dust removal device (25), and a corona treatment device (26) are sequentially arranged on the unwinding frame body (21).

6. A digital gilding machine according to claim 1, characterized in that: Two sets of spraying devices (3) are arranged on the processing frame body (11) in a front-back manner. The spraying device (3) includes a digital nozzle (31). A UV curing device (32) is arranged on one side of the digital nozzle (31).

7. A digital gilding machine according to claim 1, characterized in that: The winding device (5) includes a winding frame body (51). A winding roller (52) is arranged on the winding frame body. A winding deviation adjusting device (53) is arranged on one side of the winding roller (52) close to the hot stamping assembly (4). A winding tension detection (54) is arranged above the winding deviation adjusting device (53). A winding pressure roller (55) is arranged on one side of the winding tension detection (54). The winding pressure roller (55) is arranged above the winding roller (52).

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