Automatic gilding press

Abstract

The invention relates to an automatic gilding press which comprises a gilding press body, an unwinding mechanism, a winding mechanism, a rotating speed adjusting mechanism, a rolling diameter measuring mechanism, a gilding mechanism and a controller. The rotating speed adjusting mechanism comprises a supporting plate, a first motor and an adjusting assembly. The adjusting assembly is used for adjusting the rotating speed of the winding mechanism and the rotating speed of the unwinding mechanism. The adjusting assembly comprises a driving chain wheel in transmission connection with the first motor, a plurality of adjusting chain wheels with different diameters, a chain in meshing connection with the driving chain wheel and the adjusting chain wheels and a derailleur used for changing the position of the chain, and the derailleur is electrically connected with the controller; the adjusting chain wheel is used for driving the winding mechanism and the unwinding mechanism to rotate, the winding diameter measuring mechanism is in signal connection with the controller, and the controller drives the derailleur to adjust the position of the chain. By adjusting the rotating speed of the unwinding mechanism and the rotating speed of the winding mechanism, the difference between the unwinding speed and the winding speed of the alumite is reduced, and therefore the tension borne by the alumite is reduced, and the gold stamping machining quality is improved.

Description

Technical Field

[0001] The present application relates to the field of hot stamping machine technology, and in particular to an automatic hot stamping machine. Background Art

[0002] Hot stamping refers to the process of hot stamping anodized aluminum onto the surface of a substrate under a certain temperature and pressure. The hot stamping machine is the equipment that completes the hot stamping process. It mainly uses the principle of heat pressure transfer to make the anodized aluminum material contact with the hot stamping plate and the substrate under pressure. As the heating of the electric heating plate makes the hot stamping plate have a certain amount of heat, the anodized aluminum is heated, and the hot-melt dyeing resin layer and adhesive on the anodized aluminum are melted. The adhesion of the dyeing resin layer decreases, while the viscosity of the adhesive increases after melting. The aluminum layer is peeled off from the anodized aluminum base mold and transferred to the substrate at the same time. As the pressure is removed, the adhesive quickly cools and solidifies, and the aluminum layer firmly adheres to the substrate to complete the hot stamping process.

[0003] In the existing hot stamping machine, during the unwinding process of the anodized aluminum, the diameter of the anodized aluminum will gradually decrease, which will cause the unwinding line speed of the anodized aluminum to gradually decrease. During the rewinding process of the anodized aluminum, the diameter of the anodized aluminum will gradually increase, which will cause the rewinding line speed of the anodized aluminum to gradually increase. The difference between the unwinding line speed and the rewinding line speed of the anodized aluminum will cause the tension of the anodized aluminum to change, thereby affecting the quality of the hot stamping process.

[0004] With respect to the above-mentioned related technologies, the inventors believe that the tension of the electroplated aluminum will change during the hot stamping process, thereby affecting the quality of the hot stamping process. Summary of the invention

[0005] In order to solve the above technical problems, the present application provides an automatic hot stamping machine.

[0006] The present application provides an automatic hot stamping machine, which adopts the following technical solution: An automatic hot stamping machine comprises a hot stamping machine body, a reeling mechanism, a reeling mechanism, a speed regulating mechanism, a reel diameter measuring mechanism, a hot stamping mechanism and a controller; The unwinding mechanism comprises an unwinding disc, an unwinding rod and a first rotating shaft. The unwinding rod and the first rotating shaft are both coaxially arranged with the unwinding disc. The unwinding disc is rotatably connected to the hot stamping machine body through the first rotating shaft. The unwinding rod is used to install anodized aluminum. The winding mechanism comprises a winding disk, a winding rod and a second rotating shaft. The winding rod and the second rotating shaft are both coaxially arranged with the winding disk. The winding disk is rotatably connected to the hot stamping machine body through the second rotating shaft. The winding rod is used to wind up the electroplated aluminum. The speed adjustment mechanism comprises a support plate, a first motor disposed on the support plate, and an adjustment component drivingly connected to the first motor, wherein the number of the adjustment components is two, and the two adjustment components are used to adjust the speeds of the first rotating shaft and the second rotating shaft respectively; The coil diameter measuring mechanism transmits the diameter information of the anodized aluminum to the controller, and the controller controls the adjusting component to adjust the rotation speeds of the first rotating shaft and the second rotating shaft respectively; The hot stamping mechanism is arranged on the hot stamping machine body and is used for hot stamping processing.

[0007] By adopting the above technical solution, the first motor drives the adjustment component to rotate, the adjustment component drives the first rotating shaft and the second rotating shaft to rotate, the first rotating shaft drives the unwinding disk to rotate, thereby realizing the unwinding of the electroplated aluminum, and the second rotating shaft drives the winding disk to rotate, thereby realizing the winding of the electroplated aluminum. As the hot stamping process proceeds, the diameter of the electroplated aluminum on the unwinding disk gradually decreases, and the coil diameter measuring mechanism transmits information to the controller, and the controller increases the rotation speed of the first rotating shaft through the adjustment component, so that the unwinding line speed remains stable. As the hot stamping process proceeds, the diameter of the electroplated aluminum on the winding disk gradually increases, and the coil diameter measuring mechanism transmits information to the controller, and the controller reduces the rotation speed of the second rotating shaft through the adjustment component, so that the winding line speed remains stable. The difference between the winding line speed and the unwinding line speed is reduced, thereby reducing the influence of tension changes on the electroplated aluminum, thereby improving the quality of hot stamping processing.

[0008] Preferably, the adjustment assembly includes a driving sprocket fixedly mounted on the transmission shaft of the first motor, a plurality of adjustment sprockets of different diameters, chains meshingly connected to the driving sprocket and the adjustment sprocket, respectively, and a derailleur for changing the position of the chain, the derailleur being electrically connected to the controller, and the adjustment sprocket being used to drive the first rotating shaft and the second rotating shaft to rotate.

[0009] By adopting the above technical solution, the first motor drives the driving sprocket to rotate, and the driving sprocket drives the adjusting sprocket to rotate through the chain. The controller controls the derailleur to adjust the position of the chain so that the chain engages with the adjusting sprockets of different diameters, thereby changing the rotational speed of the first rotating shaft and the second rotating shaft, thereby keeping the unwinding line speed and the winding line speed stable.

[0010] Preferably, the roll diameter measuring mechanism further includes an ultrasonic distance measuring sensor arranged on the hot stamping machine body.

[0011] By adopting the above technical solution, the ultrasonic distance measuring sensor measures the diameter of the electroplated aluminum and transmits the diameter information to the controller, so that the rotation speed of the unwinding reel and the winding reel is adjusted by the controller.

[0012] Preferably, a tension adjustment mechanism is provided on the main body of the hot stamping machine, and the tension adjustment mechanism includes a mounting plate, an adjustment roller, fixed rollers arranged on both sides of the adjustment roller, and a lifting assembly for driving the adjustment roller to reciprocate in a vertical direction.

[0013] By adopting the above technical solution, the lifting component adjusts the tension of the electroplated aluminum by controlling the distance between the adjusting roller and the fixed roller, thereby further reducing the impact of tension changes on the electroplated aluminum and further improving the quality of the hot stamping process.

[0014] Preferably, the lifting assembly includes a reciprocating screw, a slider, a mounting groove arranged on the mounting plate in a vertical direction, and a second motor arranged in the mounting groove; one end of the reciprocating screw is fixedly connected to the transmission shaft of the second motor, and the other end is rotatably connected to the mounting plate, the slider is threadedly connected to the reciprocating screw, the slider is slidably connected to the mounting groove, and the slider is rotatably connected to the adjusting roller.

[0015] By adopting the above technical solution, the second motor drives the reciprocating screw to rotate, and the reciprocating screw drives the slider to slide in the installation slot, so that the slider adjusts the position of the adjusting roller, thereby changing the distance between the adjusting roller and the fixed roller.

[0016] Preferably, a measuring roller is rotatably connected to the hot stamping machine body, a pressure sensor is provided on the measuring roller, the pressure sensor is signal-connected to the controller, and the controller is electrically connected to the second motor.

[0017] By adopting the above technical solution, the measuring roller monitors the tension of the electroplated aluminum through the pressure sensor, and controls the start and stop of the second motor through the controller, thereby adjusting the tension of the electroplated aluminum, further improving the quality of the hot stamping process.

[0018] Preferably, a limiting assembly for limiting the chain is provided on the support plate, and the limiting assembly includes four limiting rollers provided on the support plate, the limiting rollers are rotatably connected to the support plate, and the chain passes through a gap between two of the limiting rollers. The limiting rollers are used to limit the chain, thereby reducing the separation of the chain from the driving sprocket.

[0019] By adopting the above technical solution, the limiting roller limits the chain, which increases the connection stability between the chain and the driving sprocket when switching between adjustment sprockets of different diameters, thereby improving the operating stability of the adjustment component.

[0020] Preferably, the plurality of adjusting sprockets disposed on the first rotating shaft are arranged in a stepped structure along the axial direction of the first rotating shaft, and the plurality of adjusting sprockets disposed on the second rotating shaft are arranged in a stepped structure along the axial direction of the second rotating shaft.

[0021] By adopting the above technical solution, the adjustment sprocket arranged in a stepped structure improves the stability and smoothness of the chain switching position, thereby improving the smoothness of the rotational speed adjustment of the first rotating shaft and the second rotating shaft.

[0022] Preferably, the hot stamping mechanism includes a hot stamping plate roller and a hot stamping pressure roller arranged on the hot stamping machine body, and the electroplated aluminum and the substrate pass through the hot stamping plate roller and the hot stamping pressure roller to complete the hot stamping.

[0023] By adopting the above technical solution, the hot stamping plate roller and the hot stamping pressure roller transfer the pattern on the electrochemical aluminum to the substrate, thereby completing the hot stamping process.

[0024] In summary, this application has the following beneficial technical effects: 1. The present application transmits the diameter information of the anodized aluminum to the controller through the coil diameter measuring mechanism. The controller adjusts the chain position through the chain derailleur so that the chain meshes with the adjustment sprockets of different diameters, thereby changing the rotation speed of the unwinding disk and the winding disk, so that the unwinding line speed and the winding line speed are both kept stable, thereby reducing the influence of the tension change on the anodized aluminum and improving the quality of the hot stamping process; 2. The present application monitors the tension of the anodized aluminum by means of a pressure sensor on the measuring roller, and controls the start and stop of the second motor by means of a controller, so that the reciprocating screw drives the slider to rise and fall, thereby adjusting the distance between the adjusting roller and the fixed roller, further reducing the influence of the tension change on the anodized aluminum, and further improving the quality of the hot stamping process; 3. The present application limits the position of the chain by means of a limiting roller, thereby improving the connection stability between the chain and the driving sprocket, and further improving the operating stability of the adjustment component. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the automatic hot stamping machine provided in an embodiment of the present application; Figure 2 is a structural schematic diagram of the automatic hot stamping machine provided in an embodiment of the present application from another angle; Figure 3 It is a structural schematic diagram of the adjustment assembly, the first rotating shaft, the limit assembly and the second motor provided in an embodiment of the present application; Figure 4 It is a structural schematic diagram of the tension adjustment mechanism provided in an embodiment of the present application.

[0026] Description of the accompanying drawings: 1. Hot stamping machine body; 11. Electroplated aluminum; 2. Unwinding mechanism; 21. Unwinding reel; 22. Unwinding rod; 23. First rotating shaft; 3. Rewinding mechanism; 31. Rewinding reel; 32. Rewinding rod; 33. Second rotating shaft; 4. Speed ​​regulating mechanism; 41. Support plate; 42. First motor; 43. Adjusting assembly; 431. Driving sprocket; 432. Adjusting sprocket; 433. Chain; 434. Derailleur ; 5. Roll diameter measuring mechanism; 51. Ultrasonic distance measuring sensor; 6. Hot stamping mechanism; 61. Hot stamping plate roller; 62. Hot stamping pressure roller; 7. Tension adjusting mechanism; 71. Mounting plate; 72. Adjusting roller; 73. Fixed roller; 74. Lifting assembly; 741. Reciprocating screw; 742. Slider; 743. Mounting slide; 744. Second motor; 8. Measuring roller; 81. Pressure sensor; 9. Limiting assembly; 91. Limiting roller. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-4 This application is described in further detail.

[0028] The embodiment of the present application discloses an automatic hot stamping machine.

[0029] Reference Figure 1 , Figure 2 and Figure 3 An automatic hot stamping machine includes a hot stamping machine body 1, a reeling mechanism 2, a reeling mechanism 3, a speed regulating mechanism 4, a reel diameter measuring mechanism 5, a hot stamping mechanism 6 and a controller.

[0030] The unwinding mechanism 2 includes an unwinding disc 21, an unwinding rod 22 and a first rotating shaft 23. The unwinding rod 22 and the first rotating shaft 23 are both coaxially arranged with the unwinding disc 21. The unwinding disc 21 is rotatably connected to the hot stamping machine body 1 through the first rotating shaft 23. The first rotating shaft 23 is fixedly connected to the unwinding disc 21. The first rotating shaft 23 penetrates the hot stamping machine body 1 and is rotatably connected thereto. The first rotating shaft 23 is respectively perpendicular to the unwinding disc 21 and the hot stamping machine body 1. The unwinding rod 22 is used to install the electroplated aluminum 11. The unwinding rod 22 is fixedly arranged on the side of the unwinding disc 21 away from the first rotating shaft 23.

[0031] The winding mechanism 3 includes a winding disk 31, a winding rod 32 and a second rotating shaft 33. The winding rod 32 and the second rotating shaft 33 are both coaxially arranged with the winding disk 31. The winding disk 31 is rotatably connected to the hot stamping machine body 1 through the second rotating shaft 33. The second rotating shaft 33 is fixedly connected to the winding disk 31. The second rotating shaft 33 penetrates the hot stamping machine body 1 and is rotatably connected thereto. The second rotating shaft 33 is respectively perpendicular to the winding disk 31 and the hot stamping machine body 1. The winding rod 32 is used to wind up the electroplated aluminum 11. The winding rod 32 is fixedly arranged on the side of the winding disk 31 away from the second rotating shaft 33.

[0032] The speed adjustment mechanism 4 includes a support plate 41, a first motor 42 fixedly arranged on the support plate 41, and an adjustment component 43 drivingly connected to the first motor 42. There are two adjustment components 43, and the two adjustment components 43 are respectively used to adjust the speeds of the first rotating shaft 23 and the second rotating shaft 33. The support plate 41 is fixedly connected to the hot stamping machine body 1.

[0033] The adjusting assembly 43 includes a driving sprocket 431 fixedly arranged on the transmission shaft of the first motor 42, a plurality of adjusting sprockets 432 of different diameters, a chain 433 respectively meshed with the driving sprocket 431 and the adjusting sprocket 432, and a derailleur 434 for changing the position of the chain 433, the derailleur 434 being electrically connected to the controller. The derailleur 434 is fixedly arranged on the supporting plate 41.

[0034] The adjusting sprocket 432 is used to drive the first rotating shaft 23 and the second rotating shaft 33 to rotate. The multiple adjusting sprockets 432 fixedly arranged on the first rotating shaft 23 are arranged in a stepped structure along the axial direction of the first rotating shaft 23, and the multiple adjusting sprockets 432 fixedly arranged on the second rotating shaft 33 are arranged in a stepped structure along the axial direction of the second rotating shaft 33.

[0035] The support plate 41 is provided with a limiting assembly 9 for limiting the chain 433. The limiting assembly 9 includes four limiting rollers 91 provided on the support plate 41. The limiting rollers 91 are rotatably connected to the support plate 41. The chain 433 passes through the gap between the two limiting rollers 91. The limiting rollers 91 are used to limit the chain 433, thereby reducing the phenomenon of the chain 433 being separated from the driving sprocket 431. The axis direction of the limiting rollers 91 is perpendicular to the axis direction of the unwinding reel 21 and the winding reel 31, and the axis direction of the limiting rollers 91 is parallel to the hot stamping machine body 1.

[0036] The coil diameter measuring mechanism 5 transmits the diameter information of the anodized aluminum 11 to the controller, and the controller drives the chain derailleur 434 to adjust the position of the chain 433, so that the chain 433 is engaged with the adjustment sprocket 432 of different diameters. The coil diameter measuring mechanism 5 also includes an ultrasonic distance sensor 51 fixedly arranged on the hot stamping machine body 1, and the ultrasonic distance sensor 51 is connected to the controller signal.

[0037] The hot stamping mechanism 6 is arranged on the hot stamping machine body 1 and is used for hot stamping. The hot stamping mechanism 6 includes a hot stamping plate roller 61 and a hot stamping pressure roller 62 arranged on the hot stamping machine body 1. The hot stamping plate roller 61 and the hot stamping pressure roller 62 are both rotatably connected to the hot stamping machine body 1. The anodized aluminum 11 and the substrate pass through the hot stamping plate roller 61 and the hot stamping pressure roller 62 to complete the hot stamping.

[0038] A measuring roller 8 is rotatably connected to the hot stamping machine body 1, and a pressure sensor 81 is fixedly arranged on the measuring roller 8. The pressure sensor 81 is connected to the controller signal, and the controller is electrically connected to the second motor 744. The axial direction of the measuring roller 8 is parallel to the axial direction of the unwinding reel 21 and the winding reel 31 and is perpendicular to the hot stamping machine body 1.

[0039] Reference Figure 1 and Figure 4 The hot stamping machine body 1 is provided with a tension adjustment mechanism 7, which includes a mounting plate 71, an adjustment roller 72, two fixed rollers 73 respectively arranged on both sides of the adjustment roller 72, and a lifting assembly 74 for driving the adjustment roller 72 to reciprocate in the vertical direction. The fixed roller 73 is rotatably connected to the mounting plate 71.

[0040] The lifting assembly 74 includes a reciprocating screw 741, a slider 742, a mounting slot 743 arranged on the mounting plate 71 in the vertical direction, and a second motor 744 fixedly arranged in the mounting slot 743. One end of the reciprocating screw 741 is fixedly connected to the transmission shaft of the second motor 744, and the other end is rotatably connected to the mounting plate 71. The slider 742 is threadedly connected to the reciprocating screw 741, and the slider 742 is slidably connected to the mounting slot 743. The adjusting roller 72 is arranged on a side of the slider 742 away from the mounting slot 743, and the slider 742 is rotatably connected to the adjusting roller 72. The axial directions of the fixed roller 73 and the adjusting roller 72 are parallel to the axial directions of the unwinding reel 21 and the winding reel 31 and are perpendicular to the hot stamping machine body 1.

[0041] The implementation principle of an automatic hot stamping machine in the embodiment of the present application is as follows: the anodized aluminum 11 is arranged on the unwinding rod 22, and the anodized aluminum 11 passes through the fixed roller 73, the adjusting roller 72, the fixed roller 73, the measuring roller 8, the hot stamping mechanism 6 and the rewinding rod 32 in sequence, the unwinding disk 21 rotates to unwind the anodized aluminum 11, and the rewinding disk 31 rotates to rewind the anodized aluminum 11. The first motor 42 drives the driving sprocket 431 to rotate, the driving sprocket 431 drives the adjusting sprocket 432 to rotate through the chain 433, the adjusting sprocket 432 drives the first rotating shaft 23 and the second rotating shaft 33 to rotate respectively, the first rotating shaft 23 drives the unwinding disk 21 to rotate, and the second rotating shaft 33 drives the rewinding disk 31 to rotate. As the hot stamping process proceeds, the diameter of the electroplated aluminum 11 roll on the unwinding reel 21 gradually decreases, and the diameter of the electroplated aluminum 11 roll on the winding reel 31 gradually increases. The ultrasonic ranging sensor 51 transmits the diameter information of the electroplated aluminum 11 to the controller. The controller drives the chain derailleur 434 to adjust the position of the chain 433. The chain derailleur 434 under the first rotating shaft 23 drives the chain 433 to move to the adjustment sprocket 432 with a smaller diameter, thereby increasing the rotation speed of the first rotating shaft 23, thereby reducing the change in the unwinding line speed. The chain derailleur 434 under the second rotating shaft 33 drives the chain 433 to move to the adjustment sprocket 432 with a larger diameter, thereby reducing the rotation speed of the second rotating shaft 33, thereby reducing the change in the winding line speed. By adjusting the unwinding line speed and the winding line speed, the line speed difference between the unwinding and winding processes is reduced, thereby reducing the influence of tension changes on the electroplated aluminum 11, thereby improving the hot stamping quality. The pressure sensor 81 on the measuring roller 8 measures the tension of the electroplated aluminum 11 and transmits the information to the controller. The controller adjusts the distance between the adjusting roller 72 and the fixed roller 73 through the second motor 744, further reducing the influence of the tension change on the electroplated aluminum 11, thereby further improving the hot stamping quality.

[0042] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An automatic hot stamping machine, characterized in that: It comprises a hot stamping machine body (1), a reeling mechanism (2), a reeling mechanism (3), a speed regulating mechanism (4), a reel diameter measuring mechanism (5), a hot stamping mechanism (6) and a controller; The unwinding mechanism (2) comprises an unwinding disc (21), an unwinding rod (22) and a first rotating shaft (23); the unwinding rod (22) and the first rotating shaft (23) are both coaxially arranged with the unwinding disc (21); the unwinding disc (21) is rotatably connected to the hot stamping machine body (1) via the first rotating shaft (23); and the unwinding rod (22) is used for mounting the electroplated aluminum (11); The winding mechanism (3) comprises a winding disk (31), a winding rod (32) and a second rotating shaft (33); the winding rod (32) and the second rotating shaft (33) are both coaxially arranged with the winding disk (31); the winding disk (31) is rotatably connected to the hot stamping machine body (1) via the second rotating shaft (33); and the winding rod (32) is used for winding the electroplated aluminum (11); The speed regulating mechanism (4) comprises a support plate (41), a first motor (42) arranged on the support plate (41), and an regulating assembly (43) drivingly connected to the first motor (42), wherein the number of the regulating assemblies (43) is two, and the two regulating assemblies (43) are used to regulate the speed of the first rotating shaft (23) and the second rotating shaft (33), respectively; The coil diameter measuring mechanism (5) transmits diameter information of the electroplated aluminum (11) to the controller, and the controller controls the adjustment component (43) to adjust the rotation speeds of the first rotating shaft (23) and the second rotating shaft (33) respectively; The hot stamping mechanism (6) is arranged on the hot stamping machine body (1) and is used for performing hot stamping processing.

2. The automatic hot stamping machine according to claim 1, characterized in that: The adjustment assembly (43) comprises a driving sprocket (431) fixedly arranged on the transmission shaft of the first motor (42), a plurality of adjustment sprockets (432) of different diameters, a chain (433) respectively meshingly connected to the driving sprocket (431) and the adjustment sprocket (432), and a derailleur (434) for changing the position of the chain (433), the derailleur (434) being electrically connected to the controller, and the adjustment sprocket (432) being used to drive the first rotating shaft (23) and the second rotating shaft (33) to rotate.

3. The automatic hot stamping machine according to claim 1, characterized in that: The roll diameter measuring mechanism (5) further comprises an ultrasonic distance measuring sensor (51) arranged on the hot stamping machine body (1).

4. The automatic hot stamping machine according to claim 1, characterized in that: The hot stamping machine body (1) is provided with a tension adjustment mechanism (7), the tension adjustment mechanism (7) comprising a mounting plate (71), an adjustment roller (72), fixed rollers (73) arranged on both sides of the adjustment roller (72), and a lifting assembly (74) for driving the adjustment roller (72) to reciprocate in a vertical direction.

5. The automatic hot stamping machine according to claim 4, characterized in that: The lifting assembly (74) comprises a reciprocating screw (741), a slider (742), a mounting groove (743) arranged on the mounting plate (71) along the vertical direction, and a second motor (744) arranged in the mounting groove (743); one end of the reciprocating screw (741) is fixedly connected to the transmission shaft of the second motor (744), and the other end is rotationally connected to the mounting plate (71); the slider (742) is threadedly connected to the reciprocating screw (741); the slider (742) is slidably connected to the mounting groove (743); and the slider (742) is rotationally connected to the adjusting roller (72).

6. The automatic hot stamping machine according to claim 5, characterized in that: A measuring roller (8) is rotatably connected to the hot stamping machine body (1), a pressure sensor (81) is provided on the measuring roller (8), the pressure sensor (81) is signal-connected to the controller, and the controller is electrically connected to the second motor (744).

7. The automatic hot stamping machine according to claim 2, characterized in that: A limiting assembly (9) for limiting the position of the chain (433) is arranged on the support plate (41), and the limiting assembly (9) comprises four limiting rollers (91) arranged on the support plate (41), the limiting rollers (91) being rotatably connected to the support plate (41), the chain (433) passing through a gap between two limiting rollers (91), and the limiting rollers (91) being used to limit the position of the chain (433), thereby reducing the separation of the chain (433) from the driving sprocket (431).

8. The automatic hot stamping machine according to claim 2, characterized in that: The plurality of adjusting sprockets (432) arranged on the first rotating shaft (23) are arranged in a stepped structure along the axial direction of the first rotating shaft (23), and the plurality of adjusting sprockets (432) arranged on the second rotating shaft (33) are arranged in a stepped structure along the axial direction of the second rotating shaft (33).

9. The automatic hot stamping machine according to claim 1, characterized in that: The hot stamping mechanism (6) comprises a hot stamping plate roller (61) and a hot stamping pressure roller (62) arranged on the hot stamping machine body (1); the electroplated aluminum (11) and the substrate pass through between the hot stamping plate roller (61) and the hot stamping pressure roller (62) to complete the hot stamping.

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