Film hot stamping mechanism

Abstract

The invention discloses a film hot stamping mechanism, comprising a base and a lifting seat, a power rod fixed to the lifting seat passes through a through hole of the base, a plurality of printing molds are arranged between the base and the lifting seat, an aluminum foil driving mechanism is arranged above the printing mold, the aluminum foil driving mechanism comprises a connecting plate, the connecting plate is provided with an aluminum foil release roller, a storage roller and a plurality of guide rollers, the aluminum foil release roller is connected with a magnetic powder brake, the storage roller is connected with a servo motor, a monitoring device is installed on one side of the connecting plate, the monitoring device comprises a photoelectric switch, the photoelectric switch is movably installed on a guide rod through a sliding sleeve, the guide rod is fixedly connected to the lifting block through a connecting block, the lifting block is sleeved on the sliding rod, the two ends of the sliding rod are fixedly connected to the mounting block, the mounting block is fixedly connected to the connecting plate, and a vertical screw for adjusting the lifting of the lifting block is arranged on the mounting block. The invention can ensure that the pattern on the electrochemical aluminum foil is accurately hot stamped to the corresponding position on the film roll.

Description

Technical Field

[0001] The present invention relates to a hot stamping mechanism, in particular to a web film hot stamping mechanism. Background Art

[0002] The hot stamping process is a special printing process without using ink, which refers to the process of hot stamping an aluminized foil onto the surface of a printing substrate under a certain pressure and temperature. The patterns hot stamped with aluminized foil present a strong metallic luster, with bright and vivid colors that never fade. Especially for gold and silver aluminized foils, with their magnificent, delicate and elegant decoration on the surface of printed matter, it enhances the artistry of the printed matter, plays a role in highlighting the theme for publicity, and gives the product a high-class feeling and a beautiful enjoyment. The hot stamping process has been widely applied to high-grade and delicate packaging, trademarks, wall calendars, book covers and other printed matters. In order to make the packaging appearance of products attract more consumers, the hot stamping process is also used on plastic bags, paper bags, woolen cloth bags and other packaging materials.

[0003] As described in the Chinese utility model patent with the publication number CN208216266U, there is a prior film hot stamping machine for bags, which includes a film feeding mechanism, a hot stamping mechanism and a winding mechanism, and the hot stamping mechanism is located between the film feeding mechanism and the winding mechanism; the film feeding mechanism includes a feeding roller and a number of conveying rollers, and the feeding roller is connected with a magnetic powder brake; the hot stamping mechanism includes a base and a lifting seat, the power rod fixed on the lifting seat passes through the through hole of the base, and a number of groups of printing dies are arranged between the base and the lifting seat. A film guiding roller is arranged in front of the printing die, and an aluminized foil moving mechanism is arranged above the printing die. The aluminized foil driving mechanism includes an aluminized foil releasing roller and a receiving roller, the aluminized foil releasing roller is connected with a magnetic powder brake, and the receiving roller is connected with a servo motor; the winding mechanism includes a winding roller connected with a motor. The film web is sleeved on the feeding roller of the film feeding mechanism, the film is pulled through the conveying rollers, the printing die, etc., and then fixed on the sleeve of the receiving roller of the winding mechanism. Then the roll of aluminized foil is tightly sleeved on the aluminized foil releasing roller, and then the sheet of aluminized foil is passed through the printing die of the hot stamping mechanism and fixed on the receiving roller. Then the film is passed through the printing die from the guiding roller. When the servo motor connected with the receiving roller and the motor connected with the winding roller work, the aluminized foil and the film will slowly pass through the printing die. As the film and the aluminized foil move, the printing die will fix the aluminized layer on the aluminized foil on the film, so as to print various patterns or characters on the film. Its printing process is fully automatic control, without manual participation, and has high production efficiency.

[0004] However, it is very difficult to accurately hot stamp a specific pattern on the aluminized foil onto the corresponding position on the film web with the above hot stamping machine, because the above hot stamping machine will generate a certain displacement tolerance during the working process. As the work continues, this displacement tolerance will become larger and larger, and the position of the pattern printed on the film web will deviate more and more seriously, and it is very difficult to detect and adjust in time, which affects the quality of the hot stamped products. Summary of the invention

[0005] The purpose of the present invention is to provide a film hot stamping mechanism which can accurately hot stamp a pattern on an electrochemical aluminum foil onto a corresponding position on a film roll.

[0006] The present invention achieves the above object by:

[0007] The film hot stamping mechanism comprises a base and a lifting seat, a power rod fixed on the lifting seat passes through the through hole of the base, a plurality of printing molds are arranged between the base and the lifting seat, an aluminum foil driving mechanism is arranged above the printing mold, the aluminum foil driving mechanism comprises a connecting plate, an aluminum foil releasing roller, a storage roller and a plurality of guide rollers are installed on the connecting plate, the aluminum foil releasing roller is connected to a magnetic powder brake, the storage roller is connected to a servo motor, a monitoring device is installed on one side of the connecting plate, the monitoring device comprises a photoelectric switch, the photoelectric switch is movably installed on the guide rod through a sliding sleeve, the guide rod is fixedly connected to the lifting block through a connecting block, the lifting block is sleeved on the sliding rod, both ends of the sliding rod are fixedly connected to the mounting block, the mounting block is fixedly connected to the connecting plate, and a vertical screw for adjusting the lifting of the lifting block is provided on the mounting block.

[0008] Wherein, a light blocking plate and a round rod are installed in front of the photoelectric switch and on the connecting block. There are two round rods, which are respectively located on the upper and lower sides of the light blocking plate.

[0009] Among them, three guide rollers are provided on the upper and lower sides of the round rod. The lower guide roller is located in front of the printing mold and is one, one end of which is installed on the connecting plate through a strip groove, and the other end is installed on the square bar. The other end of the square bar is also fixed to the connecting plate through another strip groove; there are two upper guide rollers, and the planes where the two are located form a certain angle with the horizontal plane. One end of them is installed on the connecting plate, and the other end is installed on the connecting plate through a protrusion extending outward.

[0010] Among them, an aluminum foil tension adjustment device is installed on the connecting plate, and the aluminum foil tension adjustment device includes a limit cylinder and a swing roller. The free end of the limit cylinder is movably connected to the swing arm, and the other end of the limit cylinder is movably connected to the connecting plate; the swing roller is installed at one end of the swing arm, and the other end of the swing arm is movably installed on the extension block of the connecting plate. A fork block is also fixed to the other end of the swing arm, and a bearing is installed in the fork of the fork block. The bearing is fixedly connected to the telescopic rod of the potentiometer through a connecting arm, and the potentiometer is fixed on the platform above the connecting plate.

[0011] Wherein, the aluminum foil releasing roller and the receiving roller are both sleeved with two opposite bevel gears, and the bevel gears are fixed on the aluminum foil releasing roller or the receiving roller by screws passing through the screw holes.

[0012] Among them, vertical plates are connected to both sides of the upper part of the printing die. The vertical plates pass through the through holes of the upper slide plate and are fixedly connected to the hanging bars. A sliding seat is provided at the bottom of the upper slide plate. The sliding seat is sleeved on the slide rail of the lifting seat. A hot stamping plate lock is installed on the upper surface of the upper slide plate. The hot stamping plate lock is provided with a through hole for the screw rod to pass through. Threads matching the threads of the screw rod are provided in the through hole. One end of the screw rod is installed with a rotating handle or a handwheel.

[0013] Among them, the hot stamping plate lock is mainly composed of two lock blocks hinged together. The lower lock block is fixed on the surface of the upper slide plate. Semi-circular grooves are respectively provided at the opposite positions of the upper and lower lock blocks. The upper and lower semi-circular grooves form the through hole. The threads matching the threads of the screw rod are provided on the inner wall of the groove of the upper lock block. Magnets for attracting each other are provided at the free ends of the upper and lower lock blocks.

[0014] Among them, a heat-resistant rubber block is installed between the heating plate of the printing die and the lifting seat.

[0015] Among them, a scale is provided on the surface of the lifting seat, and a pointer pointing to the scale is installed on the upper slide plate.

[0016] Among them, receiving blocks are fixed on both sides of the heating plate of the printing die. Convex strips are provided on the inner sides of the receiving blocks. The convex strips are recessed into the grooves of the hot stamping template to connect the heating plate and the hot stamping template together.

[0017] The beneficial effects of the present invention are as follows: First, adjust the photoelectric switch of the monitoring device to align with the pattern on the aluminum foil. When the pattern on the aluminum foil passes in front of the photoelectric switch of the monitoring device, the monitoring device can accurately measure the distance between two adjacent patterns, and then control the advancing length of the film web according to this distance. The advancing lengths of both the aluminum foil web and the film web are determined by the distance between two adjacent patterns on the aluminum foil, so that the printing die can accurately hot stamp the pattern on the aluminum foil onto the film web, and there will be no displacement tolerance in its working process, which is practical and reliable. Among them, by loosening the connection between the sliding sleeve and the guide rod, the photoelectric switch can move left and right; by rotating the vertical screw rod, the position of the photoelectric switch up and down can be adjusted to adapt to the patterns at different positions on the hot stamping aluminum foil. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the drawings and embodiments: Figure 1 is a three-dimensional structure diagram of the first embodiment of the present invention; Figure 2 is Figure 1 the enlarged view of part A of Figure 3 is a three-dimensional structure diagram of the first embodiment of the present invention from another angle; Figure 4 is a three-dimensional structure diagram of the first embodiment of the present invention after removing some components; Figure 5 is a three-dimensional structure diagram of the second embodiment of the present invention; Figure 6 is Figure 5 the enlarged view of part B ofFigure 7 Yes Figure 5 Enlarged view at position C of Specific implementation mode

[0019] Refer to Figures 1 to 4 , a thin-film hot stamping mechanism, including a base 1 and a lifting seat 2. The power rod 3 fixed to the lifting seat 2 passes through the through hole of the base 1. A number of printing dies 4 are provided between the base 1 and the lifting seat 2. Above the printing die 4, there is an aluminum foil driving mechanism 5. The aluminum foil driving mechanism 5 includes a connecting plate 6. The connecting plate 6 is equipped with an aluminum foil release roller 7, a storage roller 8 and a number of guide rollers 9. The aluminum foil release roller 7 is connected with a magnetic powder brake 10. The storage roller 8 is connected with a servo motor 11. On one side of the connecting plate 6, there is a monitoring device 12. The monitoring device 12 includes a photoelectric switch 13. The photoelectric switch 13 is movably installed on the guide rod 15 through a sliding sleeve 14. The guide rod 15 is fixedly connected with a lifting block 17 through a connecting block 16. The lifting block 17 is sleeved on the sliding rod 18. Both ends of the sliding rod 18 are fixedly connected with mounting blocks 19. The mounting blocks 19 are fixedly connected with the connecting plate 6. On the mounting blocks 19, there is a vertical screw rod 20 for adjusting the lifting of the lifting block 17. First, adjust the photoelectric switch 13 of the monitoring device 12 to align with the pattern on the aluminum foil. When the pattern on the aluminum foil passes in front of the photoelectric switch 13 of the monitoring device, the monitoring device can accurately measure the distance between two adjacent patterns, and then control the advancing length of the thin-film coil according to this distance. The advancing lengths of both the aluminum foil coil and the thin-film coil are determined by the distance between two adjacent patterns on the aluminum foil, so that the printing die can accurately hot stamp the pattern on the aluminum foil onto the thin-film coil, and its working process will not generate displacement tolerance, which is practical and reliable. Among them, loosen the connection between the sliding sleeve 14 and the guide rod 15, and the photoelectric switch 13 can move left and right; rotate the vertical screw rod 20, and the position of the photoelectric switch 13 up and down can be adjusted to adapt to the patterns at different positions on the hot-stamped aluminum foil. Among them, the connecting plate 6 is fixed on a support plate 54. The lower part of the support plate 54 is fixedly connected with a sliding seat 55. The sliding seat 55 is sleeved on the guide rail 56 and is to slide relative to the guide rail 56. The guide rail 56 is fixed on a support plate 57. The support plate 57 is fixedly connected with the base 1 through the vertical plates 58 at both ends. There are two guide rails 56. The same guide rail 56 is connected with the support plate 54 by two sliding seats 55. The connecting plate 6 is connected with a transmission screw rod 67. Rotate the handwheel of the transmission screw rod 67, and the transmission screw rod 67 will drive the connecting plate 6 to move along the guide rail 56 to adapt to the requirements of hot stamping different thin films. The servo motor 11 is connected with a driving gear 60. The driving gear 60 is connected with two driven gears 61 through a transmission belt.

[0020] In order to enable the photoelectric switch to more accurately monitor the patterns on the aluminum foil, a light shielding plate 21 and two round bars 22 are installed on the connecting block 16 in front of the photoelectric switch 13. The two round bars 22 are respectively located on the upper and lower sides of the light shielding plate 21. When the aluminum foil passes between the photoelectric switch 13 and the light shielding plate 21, the light shielding plate 21 can effectively reduce the influence of external light on the photoelectric switch 13, ensuring that the photoelectric switch 13 can more accurately monitor the patterns on the aluminum foil and measure the distance between adjacent patterns. The two round bars above and below the light shielding plate can make the patterns on the aluminum foil face the photoelectric switch directly, which is more convenient for the measurement of the photoelectric switch.

[0021] In order to further facilitate the photoelectric switch to measure the distance between adjacent patterns on the aluminum foil and then accurately feed the patterns into the printing die to hot stamp the patterns on the film web, three guide rollers 9 are provided on the upper and lower sides of the round bar 22. The lower guide roller is located in front of the printing die 4 and is one. One end of it is installed on the connecting piece 23 through a strip-shaped groove, and the other end is installed on the square bar 24. The other end of the square bar 24 is also fixed on the connecting plate 6 through another strip-shaped groove; the upper guide rollers 9 are two, and the plane where they are located forms a certain angle with the horizontal plane. One end of them is installed on the connecting piece 23, and the other end is installed on the connecting plate 6 through the outward-extending convex block 25, so as to ensure that the aluminum foil passes in front of the photoelectric switch smoothly and accurately.

[0022] In order to further ensure that the aluminum foil runs more smoothly and accurately and facilitate the photoelectric switch to monitor the patterns on the aluminum foil, an aluminum foil tension adjusting device 26 is installed on the connecting plate 6. The aluminum foil tension adjusting device 26 includes a limit air cylinder 27 and a swing roller 28. The free end of the limit air cylinder 27 is movably connected to the swing arm 29, and the other end of the limit air cylinder 27 is movably connected to the connecting plate 6; the swing roller 28 is installed at one end of the swing arm 29, and the other end of the swing arm 29 is movably installed on the extension block 30 of the connecting plate 6. A fork joint block 31 is also fixed at the other end of the swing arm 29. A bearing 32 is installed in the fork of the fork joint block 31. The bearing 32 is fixedly connected to the telescopic rod of the potentiometer 34 through a connecting arm 33. The potentiometer 34 is fixed on the platform 35 above the connecting plate 6. When the tension of the running aluminum foil is lower than a certain value or in a loose state, the telescopic rod of the potentiometer 34 will extend, and at this time, the braking resistance of the magnetic powder brake 10 will also increase accordingly, so as to tension the running aluminum foil; otherwise, vice versa.

[0023] Refer to Figures 5 to 6, in order to firmly fix the aluminum foil unwinding roll and the aluminum foil waste roll on the aluminum foil releasing roller 7 and the receiving roller 8 respectively, two opposite bevel gears 36 are sleeved on both the aluminum foil releasing roller 7 and the receiving roller 8. The bevel gears 36 are fixed on the aluminum foil releasing roller 7 or the receiving roller 8 through screws passing through their screw holes. When installing the roll, first loosen the outer gear 36, remove the outer gear 36 from the aluminum foil releasing roller 7 and the receiving roller 8, and then reinstall the outer gear 36. Force the two opposite gears 36 on the same roller to press the roll while tightening the screws on the gears, and the roll can be firmly fixed on the aluminum foil releasing roller 7 or the receiving roller 8.

[0024] Wherein, both sides of the upper part of the printing die 4 are connected with vertical plates 37. The vertical plates 37 pass through the through holes of the upper slide plate 38 and are fixedly connected with the hanging bars 39. A slide seat 40 is arranged at the bottom of the upper slide plate 38. The slide seat 40 is sleeved on the slide rail 68 of the lifting seat 2. A hot stamping plate lock 41 is installed on the upper surface of the upper slide plate 38. The hot stamping plate lock 41 is provided with a through hole for the screw rod 42 to pass through. Threads matching the threads of the screw rod 42 are arranged in the through hole. One end of the screw rod 42 is installed with a rotating handle or a hand wheel 43. Rotate the rotating handle or the hand wheel 43, and the screw rod 42 will drive the hot stamping plate lock 41 to move; since the hot stamping plate lock 41 is installed on the surface of the upper slide plate 38, the movement of the hot stamping plate lock 41 will drive the upper slide plate 38 to slide along the slide rail on the lifting seat 2; while the upper slide plate 38 slides, it will drive the printing die 4 below the lifting seat 2 to move through the vertical plates 37. The printing die 4 includes a heating plate 46, a hot stamping template 53 and a backing plate 59. In short, as long as the rotating handle or the hand wheel 43 is rotated in the present invention, the printing die 4 will be adjusted and moved to an appropriate position to accurately hot stamp the gold film on the packaging film.

[0025] Wherein, the hot stamping plate lock 41 is mainly composed of two lock blocks 44 hinged together up and down. The lower lock block is fixed on the surface of the upper slide plate 38. Semi-circular grooves are respectively arranged at the opposite positions of the two lock blocks up and down. The two semi-circular grooves up and down form the through hole. The threads matching the threads of the screw rod are arranged on the inner wall of the groove of the upper lock block. Magnetic attractions 45 for attracting each other are arranged at the free ends of the two lock blocks up and down. When the magnetic attractions 45 make the two lock blocks 44 buckle together, the hot stamping plate lock 41, the upper slide plate 38, the hanging bars 39, the vertical plates 37, the heating plate 46, the hot stamping template 53, etc. will move along with the rotation of the screw rod 42. Open the magnetic attractions 45 to separate the threads on the inner wall of the groove of the upper lock block from the screw rod 42, and the above-mentioned components will not move along with the rotation of the screw rod 42, but the above-mentioned components can be directly pushed together by hand for long-distance movement without fine-tuning with the screw rod, which can further facilitate the position adjustment of the printing die.

[0026] In addition, the hanging bar 39 is provided with a screw hole, and a screw is installed on the screw hole, and the screw can pass through the screw hole to contact the upper slide plate 38. The screw is rotated so that the screw is tightly pressed on the upper slide plate 38, and the heating plate 46 will be close to the bottom of the lifting seat 2 at this time, thereby effectively preventing the hot stamping template 53 from moving during the working process, ensuring that the pattern on the aluminum foil is accurately hot stamped on the packaging film. At the same time, it can also effectively prevent the worker from turning the handle or hand wheel by mistake to drive the hot stamping template. Even if the screw is rotated, since the screw is tightly pressed on the upper slide plate 38 and the heating plate 46 is close to the bottom of the lifting seat 2, the hot stamping template 53 will not move at this time. Under the action of the screw, the locking block will get rid of the magnetic suction force and jump up, so that the texture in the groove of the locking block is separated from the thread of the screw, so that the hot stamping template 53 can be prevented from unnecessary movement, ensuring accurate hot stamping, and preventing the screw from being damaged.

[0027] In order to allow the heating plate to be more effectively attached to the bottom of the lifting seat and prevent heat from being transferred to the lifting seat, a heat-resistant rubber block 47 is installed between the heating plate 46 of the printing mold 4 and the lifting seat 2.

[0028] In addition, the lifting seat 2 is provided with a scale 48 on its surface, and the upper slide plate 38 is provided with a pointer 50 pointing to the scale 49. When the hot stamping template 53 is moving, the pointer 50 on the upper slide plate 38 will also move on the scale 49, so that the worker can intuitively grasp the distance moved by the hot stamping template, further facilitating the precise operation of the work and preventing misoperation.

[0029] In addition, receiving blocks 51 are fixed on both sides of the heating plate 46 of the receiving mold 4, and convex strips 52 are provided on the inner side of the receiving blocks 51. The convex strips 52 are sunk into the grooves of the hot stamping template to connect the heating plate 46 and the hot stamping template 53 together. The groove of the hot stamping template 53 is aligned with the convex strip of the receiving block 51, and the groove and the convex strip 52 are matched and connected, so that the heating plate 46 and the hot stamping template 53 can be easily and conveniently connected; when they need to be removed, they can be pulled out. Of course, in order to connect the two more firmly, the two can be connected again with screws or other connecting parts.

Claims

1. Film hot stamping mechanism, including a base (1) and a lifting seat (2). The power rod (3) fixed to the lifting seat (2) passes through the through hole of the base (1). A number of printing dies (4) are provided between the base (1) and the lifting seat (2). Above the printing die (4), there is an aluminum foil driving mechanism (5). The aluminum foil driving mechanism (5) includes a connecting plate (6). The connecting plate (6) is equipped with an aluminum foil release roller (7), a storage roller (8) and a number of guide rollers (9). The aluminum foil release roller (7) is connected with a magnetic powder brake (10), and the storage roller (8) is connected with a servo motor (11). It is characterized in that: A monitoring device (12) is installed on one side of the connecting plate (6). The monitoring device (12) includes a photoelectric switch (13). The photoelectric switch (13) is movably installed on a guide rod (15) through a sliding sleeve (14). The guide rod (15) is fixedly connected to a lifting block (17) through a connecting block (16). The lifting block (17) is sleeved on a sliding rod (18). Both ends of the sliding rod (18) are fixedly connected to a mounting block (19). The mounting block (19) is fixedly connected to the connecting plate (6). A vertical screw rod (20) for adjusting the lifting of the lifting block (17) is provided on the mounting block (19). An aluminum foil tension adjusting device (26) is installed on the connecting plate (6). The aluminum foil tension adjusting device (26) includes a limit cylinder (27) and a swing roller (28). The free end of the limit cylinder (27) is movably connected to a swing arm (29). The other end of the limit cylinder (27) is movably connected to the connecting plate (6). The swing roller (28) is installed at one end of the swing arm (29). The other end of the swing arm (29) is movably installed on an extension block (30) of the connecting plate (6). A fork joint block (31) is also fixed at the other end of the swing arm (29). A bearing (32) is installed in the fork opening of the fork joint block (31). The bearing (32) is fixedly connected to the telescopic rod of a potentiometer (34) through a connecting arm (33). The potentiometer (34) is fixed on a platform (35) above the connecting plate (6). A light blocking plate (21) and a round rod (22) are installed on the connecting block (16) in front of the photoelectric switch (13). There are two round rods (22), which are respectively located on the upper and lower sides of the light blocking plate (21). Three guide rollers (9) are provided on the upper and lower sides of the round rod (22). The lower guide roller is located in front of the printing die (4) and is one. One end of it is installed on a connecting piece (23) through a strip-shaped groove, and the other end is installed on a square strip (24). The other end of the square strip (24) is also fixed on the connecting plate (6) through another strip-shaped groove. There are two upper guide rollers (9). The plane where they are located forms a certain angle with the horizontal plane. One end of them is installed on the connecting piece (23), and the other end is installed on the connecting plate (6) through an outward extending convex block (25).

2. The film hot stamping mechanism according to claim 1, characterized in that: Relatively two bevel gears (36) are sleeved on both the aluminum foil release roller (7) and the storage roller (8). The bevel gears (36) are fixed on the aluminum foil release roller (7) or the storage roller (8) through screws passing through their screw holes.

3. The film hot stamping mechanism according to claim 1, wherein: Vertical plates (37) are connected to both sides of the upper part of the printing die (4). The vertical plates (37) pass through through holes of an upper sliding plate (38) and are fixedly connected to hanging strips (39). A sliding seat (40) is provided at the bottom of the upper sliding plate (38). The sliding seat (40) is sleeved on the sliding rail of a lifting seat (2). A hot stamping plate lock (41) is installed on the upper surface of the upper sliding plate (38). The hot stamping plate lock (41) is provided with a through hole for a screw rod (42) to pass through. Threads matching the threads of the screw rod (42) are provided in the through hole. A rotating handle or a hand wheel (43) is installed at one end of the screw rod (42).

4. The thin film hot stamping mechanism according to claim 3, characterized in that: The hot stamping plate lock (41) is mainly composed of two lock blocks (44) hinged together, with the lower lock block fixed on the surface of the upper slide plate (38). Semi-circular grooves are respectively provided at the relative positions of the upper and lower lock blocks. The upper and lower semi-circular grooves form the through hole. Threads matching the threads of the screw are provided on the inner wall of the groove of the upper lock block. Magnets (45) for attracting each other are provided at the free ends of the upper and lower lock blocks.

5. The thin-film hot stamping mechanism according to claim 3, wherein: A heat-resistant rubber block (47) is installed between the heating plate (46) of the printing die (4) and the lifting seat (2).

6. The thin film hot stamping mechanism according to claim 3, characterized in that: A scale (48) is provided on the surface of the lifting seat (2), and a pointer (50) pointing to the scale (49) is installed on the upper slide plate (38).

7. The thin film hot stamping mechanism according to claim 3, characterized in that: Receiving blocks (51) are fixed on both sides of the heating plate (46) of the printing die (4). Convex strips (52) are provided inside the receiving blocks (51). The convex strips (52) are inserted into the grooves of the hot stamping template to connect the heating plate (46) and the hot stamping template (53) together.

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