Digital gold stamping mechanism and working method thereof

Abstract

The invention belongs to the technical field of gold stamping, and particularly relates to a digital gold stamping mechanism and a working method thereof. A stepping motor controls and drives a traction mechanism and a winding drum to control gold foil to move, the stepping motor drives the traction mechanism to accurately control the speed of the gold foil, then a trolley controlled by a servo motor is matched to move along a cross beam, and through precise matching of a program, the speed of the gold foil is accurately controlled. The gold foil rolling speed is consistent with the moving speed of the trolley, so that the gold stamping work is completed; wherein the gilding moving speed, the trolley moving speed and the gilding gold foil winding drum receiving speed are consistent, gilding gold foil may extend due to heating due to gilding heating, a receiving servo motor increases a compensation coefficient, and the compensation coefficient is automatically added according to the starting heating amount so as to ensure that the gilding effect of the gilding head position is consistent with the actual height; the defects in the prior art are overcome, and a brand-new gold stamping technology is achieved from the technological means and the working method, so that the production efficiency is greatly improved, and the production cost is greatly reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of hot stamping, and in particular relates to a digital hot stamping mechanism and a working method thereof. Background Art

[0002] The digital plateless traction hot stamping machine mainly digitizes the design pattern based on hot pressing technology, converts the designed pattern into a digital file through a program, and applies a certain pressure and heats to a certain temperature through the digital hot stamping head to stamp the gold foil onto the surface of the substrate, so that the substrate presents a strong metallic luster and achieves a hot stamping effect.

[0003] The perfect hot stamping effect mainly depends on the level of coordination between temperature, pressure and hot stamping speed. Therefore, to control the quality of hot stamping, we should master the reasonable hot stamping temperature, hot stamping pressure and hot stamping speed. Temperature has a very important influence on hot stamping. The temperature must be controlled within the corresponding range. If the temperature is too high, the melting is excessive, and the gold foil base around the hot stamping image will also melt and fall off, resulting in a paste plate. However, if the temperature is too low, the melting is insufficient, which will also cause the hot stamping to fail or be not firm, the imprint is not firm, easy to fall off, or the pen is missing or the imprint is broken, and the imprint is blurred.

[0004] The hot stamping pressure affects the adhesion of the gold foil. If the pressure is insufficient, the gold foil cannot be transferred to the substrate well, resulting in problems such as weak imprints and patterned printing. On the contrary, if the pressure is too high, the compression deformation of the pad and the substrate is too large, the imprint will be rough, or even sticky and fuzzy.

[0005] The hot stamping speed actually reflects the contact time between the substrate and the hot stamping foil during hot stamping, which directly affects the fastness of hot stamping. If the hot stamping speed is too fast, it will cause the hot stamping to fail or the imprint to be blurred; if the hot stamping speed is too slow, it will affect both the hot stamping quality and the production efficiency.

[0006] The traditional hot stamping process first involves plate making, making the hot stamping content into a hot stamping plate mold, and using a heated hot mold to transfer the hot stamping foil to the hot stamping material. Therefore, the traditional hot stamping process is complicated, difficult to control, and has backward technological means. Summary of the invention

[0007] The purpose of the present invention is to provide a digital hot stamping mechanism and a working method thereof, which overcomes the shortcomings of the prior art and becomes a brand-new hot stamping technology from the perspective of process means and working methods, greatly improving production efficiency while significantly reducing production costs.

[0008] To solve the above problems, the technical solutions adopted by the present invention are as follows:

[0009] A digital hot stamping mechanism comprises a workbench, a trolley, a beam, a synchronous belt and a servo motor. The trolley is installed on the beam through a guide rail, and the trolley is connected to the servo motor through a synchronous belt and is controlled by the servo motor to move back and forth along the beam. The trolley is a hot stamping head trolley, and the hot stamping head trolley comprises a frame, a hot stamping head, a hot stamping head frame, a voice coil motor and its guide mechanism, a stepping motor, a winding drum, a gold foil roll, an unwinding drum, a plurality of guide wheels, a traction mechanism and an identification camera. The winding drum, the traction mechanism, a plurality of guide wheels and the unwinding drum are fixed on the front of the frame, the gold foil roll is fixed on the unwinding drum, and the gold foil roll is fixed on the unwinding drum. The gold foil on the foil roll passes through several guide wheels and traction mechanisms in turn, and is finally fixed on the winding drum. The stepper motor is installed on the back of the frame and connected to the traction mechanism and the winding drum, driving the traction mechanism and the winding drum to rotate and pull the gold foil. Two of the several guide wheels are located under the frame. The gilding head is installed on the voice coil motor and its guide mechanism through the gilding head frame and is controlled by the voice coil motor to move up and down. The gilding head is located between the two guide wheels under the frame, and the gilding head is facing down and pressing on the gold foil from top to bottom. The recognition camera is fixed under the frame to recognize the pattern and provide data for subsequent positioning and recognition.

[0010] Furthermore, the hot stamping head frame is a 7-shaped structure, which is connected to the guide mechanism of the voice coil motor. A horizontal hole is provided at the lower end. The hot stamping head is installed on the hole through a screw shaft. The hot stamping head can rotate along the screw shaft. When the hot stamping head frame applies downward pressure, the hot stamping head adapts around the mounting screw shaft.

[0011] Furthermore, an L-shaped connecting plate is provided on the back of the frame, and linear bearings are provided in the vertical and horizontal directions of the L-shaped connecting plate, and the L-shaped connecting plate is fixed on the guide rail of the crossbeam through the linear bearings.

[0012] Furthermore, one or two of the plurality of guide wheels are deviation-correcting wheels.

[0013] Furthermore, the deviation correcting wheel is a dumbbell-shaped roller.

[0014] Furthermore, the traction mechanism includes a steel thorn roller, a rubber roller and a traction mechanism fixing frame. The traction mechanism fixing frame is a rectangular frame. The steel thorn roller and the rubber roller are both arranged inside the rectangular frame. The steel thorn roller is fixedly installed. The rubber roller is fixed by a constant force pressing mechanism and is driven by the constant force pressing mechanism to move toward or away from the steel thorn roller.

[0015] Furthermore, the constant force clamping mechanism includes a C-frame, a pressure spring and a constant force clamping switching handle. The two ends of the rubber roller are fixed to the inner side of the C-frame through bearings, and the outer side of the C-frame is fixed to the inner side of the traction mechanism fixed frame through a pressure spring. A guide column and a guide sleeve are also provided in the middle position of the outer side of the C-frame. The guide sleeve is fixed on the traction mechanism fixed frame. The guide column is mounted on the guide sleeve and a constant force clamping switching handle is provided at the free end.

[0016] Further, the steel thorn roller is connected with the stepping motor.

[0017] A working method of a digital hot stamping mechanism, characterized in that: the movement of gold foil is controlled by a stepper motor to drive a traction mechanism and a winding drum, the gold foil speed is accurately controlled by the stepper motor driving the traction mechanism, and then the trolley controlled by the servo motor moves along the crossbeam, and the gold foil rolling speed is made consistent with the trolley moving speed through program precise matching, thereby completing the hot stamping work; wherein the hot stamping moving speed, the trolley moving speed, and the hot stamping gold foil reel receiving speed are consistent, and due to the hot stamping heating, the hot stamping gold foil may be extended due to heating, and the receiving servo motor will increase the compensation coefficient, and the compensation coefficient will be automatically added according to the amount of heating started, so as to ensure that the hot stamping effect of the hot stamping head position is consistent with the actual height.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. Plateless hot stamping: No need to make hot stamping plates, saving plate making costs and time. Plateless hot stamping has the advantages of immediate arrangement and printing, which overturns the shortcomings of traditional plate making and hot stamping, such as complicated processes and long cycles.

[0020] 2. The working pressure of the hot stamping head is controlled by a voice coil motor, which moves up and down along the linear guide (Z direction), and the pressure is adjustable and controllable. The voice coil motor has a simple structure and fast dynamic response speed, which improves work efficiency.

[0021] 3. Roll-type hot stamping gold foil: The gold foil is rolled by the traction-type hot stamping machine. The traction mechanism driven by the hybrid stepper motor accurately controls the speed of the gold foil, and then cooperates with the trolley controlled by the servo motor to move along the beam (Y direction). Through precise program matching, the gold foil rolling speed is consistent with the trolley movement speed, thereby improving the hot stamping quality and speed. (The traction mechanism consists of steel thorns, rubber rods and a clamping mechanism. The gold foil is between the steel thorns and the rubber rods. The clamping mechanism pushes the rubber rod to press the gold foil on the steel thorns. The stepper motor drives the steel thorns to rotate, and the friction between the gold foil and the steel thorns drives the gold foil to move, and then the waste is collected by the reel).

[0022] 4. The hot stamping head has a built-in directional positioning heating mechanism. According to the set hot stamping content, it scans the current hot stamping area in sequence and starts the corresponding hot stamping head heating to realize the hot stamping operation controlled by the digital dynamic heating of the hot stamping head. The hot stamping head is matrix heating. According to the hot stamping data, the corresponding heating point is automatically turned on. The hot stamping head itself is a mature process.

[0023] 5. The hot stamping speed is CNC adjustable. The hot stamping moving speed is consistent with the moving speed of the trolley, and is also consistent with the hot stamping gold foil reel reel reel speed. Due to the hot stamping heating, the hot stamping gold foil may extend due to heating, and the reeling servo motor will increase the compensation coefficient. According to the amount of heating started, the compensation coefficient is automatically added to ensure that the hot stamping effect of the hot stamping head position is consistent with the actual height.

[0024] 6. The clamping mechanism provides a highly synchronized clamping force between the gold foil reel reel and the servo motor to reduce the risk of slipping. The clamping force can be customized with a stable compression spring as required.

[0025] 7. The video recognition system uses a pre-made algorithm to identify the position marking points on the cardboard or other hot stamping objects through the camera, and then calculate the entire placement of the cardboard or other hot stamping objects, and then virtually place the hot stamping content image at the corresponding position, so as to obtain a hot stamping effect consistent with the cardboard or other hot stamping objects.

[0026] 8. The hot stamping head has two adaptive capabilities: one is the adaptive process of the hot stamping head around the mounting screw axis, and the other is the adaptive process of the hot stamping head in the Z direction. The advantage of the adaptive capability is that it can automatically adapt to the deviation caused by the slight tilt of the work surface, cardboard, workpiece, etc., without affecting the hot stamping quality.

[0027] 9. The two dumbbell-shaped deflection correction wheels utilize the elastic deformation characteristics of the hot stamping gold foil tape. In the working state, under the action of the winding tension of the hot stamping gold foil tape, a certain tension difference is formed in the middle and both sides of the dumbbell-shaped deflection correction wheel, so that the hot stamping gold foil tape will not slip sideways on the dumbbell-shaped deflection correction wheel and fail.

[0028] 10. The working method is mainly reflected in the algorithm prefabricated in the video recognition system. It uses scanning calculations on the identification points to obtain the fusion of the hot stamping process with the hot stamping object. On the other hand, the hot stamping head uses the load of the hot stamping amount as an information parameter and adds it to the hot stamping foil roll reel reel speed. As the hot stamping load increases, the heating amount will inevitably increase. The increase in the amount added will inevitably cause the hot stamping foil roll to expand and elongate. Although the amount is small, it accumulates to a large amount, which may cause material accumulation. By using the real-time load information of the hot stamping head and adding it to the hot stamping foil roll reel reel speed, an automatic feedback system can be formed to automatically adjust the hot stamping foil roll reel reel speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 The figure is a structural diagram of a digital hot stamping mechanism.

[0030] Figure 2 This is a schematic diagram of the structure of the front side of the hot stamping head trolley.

[0031] Figure 3 This is a schematic diagram of the internal structure of the front of the hot stamping head trolley.

[0032] Figure 4 This is a schematic diagram of the structure on the back of the hot stamping head trolley.

[0033] Figure 5 It is a top view structural diagram of the hot stamping head trolley.

[0034] Figure 6 It is a schematic diagram of the structure of the hot stamping head and the hot stamping head frame. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Embodiment 1

[0037] As shown in the figure, a digital hot stamping mechanism described in the present invention includes a workbench 1, a trolley 2, a beam 11, a synchronous belt 12 and a servo motor 13. The trolley 2 is installed on the beam 11 through a guide rail 14. The trolley 2 is connected to the servo motor 13 through the synchronous belt 12 and is controlled by the servo motor 13 to move back and forth along the beam 11. The trolley 2 is a hot stamping head trolley, which includes a frame 21, a hot stamping head 4, a hot stamping head frame 22, a voice coil motor and its guide mechanism 23, a stepping motor 3, a winding drum 24, a gold foil roll 25, an unwinding drum 26, a plurality of guide wheels 27, a traction mechanism 28 and an identification camera 29. The winding drum 24, the traction mechanism 28, the plurality of guide wheels 27 and the unwinding drum 26 are fixed on the front of the frame 21. The gold foil roll 25 is fixed on the unwinding drum 26, and the gold foil on the gold foil roll passes through several guide wheels 27 and traction mechanism 28 in sequence, and is finally fixed on the winding drum 24. The stepper motor 3 is installed on the back of the frame and is connected with the traction mechanism 28 and the winding drum 24, driving the traction mechanism 28 and the winding drum 24 to rotate and pull the gold foil. Two of the several guide wheels 27 are located under the frame. The gilding head 4 is installed on the voice coil motor and its guide mechanism 23 through the gilding head frame 22 and is controlled by the voice coil motor to move up and down. The gilding head 4 is located between the two guide wheels under the frame 21, and the gilding head 4 is facing downward and pressing on the gold foil from top to bottom. The recognition camera 28 is fixed under the frame 21 to recognize the pattern and provide data for subsequent positioning and recognition.

[0038] Furthermore, the hot stamping head frame 22 is a 7-shaped structure, the upper end of the 7-shaped structure is connected to the guide mechanism of the voice coil motor, and the lower end is provided with a horizontal hole. The hot stamping head 4 is installed on the hole through the screw shaft 41. The hot stamping head can rotate along the screw shaft. When the hot stamping head frame applies downward pressure, the hot stamping head adapts around the mounting screw shaft.

[0039] Furthermore, an L-shaped connecting plate 5 is provided on the back side 21 of the frame. Linear bearings 51 are provided on the vertical and horizontal directions of the L-shaped connecting plate, and the L-shaped connecting plate is fixed on the guide rail of the crossbeam through the linear bearings.

[0040] Further, one or two of the plurality of guide wheels are deviation-correcting wheels 271. The deviation-correcting wheels 271 are dumbbell-shaped rollers.

[0041] Furthermore, the traction mechanism 28 includes a steel thorn roller 281, a rubber roller 282 and a traction mechanism fixing frame 283. The traction mechanism fixing frame is a rectangular frame. The steel thorn roller 281 and the rubber roller 282 are both arranged inside the rectangular frame. The steel thorn roller 281 is fixedly installed, and the rubber roller 282 is fixed by a constant force clamping mechanism 6, and is driven by the constant force clamping mechanism to move toward or away from the steel thorn roller.

[0042] Furthermore, the constant force clamping mechanism 6 includes a C-frame 61, a pressure spring 62 and a constant force clamping switching handle 64. The two ends of the rubber roller are fixed to the inner side of the C-frame through bearings, and the outer side of the C-frame is fixed to the inner side of the traction mechanism fixed frame through a pressure spring. A guide column 63 and a guide sleeve are also provided in the middle position of the outer side of the C-frame. The guide sleeve is fixed on the traction mechanism fixed frame. The guide column is arranged on the guide sleeve and a constant force clamping switching handle is provided at the free end.

[0043] Further, the steel thorn roller is connected with the stepping motor.

[0044] Embodiment 2

[0045] A working method of a digital hot stamping mechanism, which controls the movement of gold foil by driving a traction mechanism and a reel through a stepper motor, and the traction mechanism driven by the stepper motor accurately controls the speed of the gold foil, and then cooperates with the trolley controlled by the servo motor to move along the beam, and through accurate program matching, the gold foil rolling speed is consistent with the trolley moving speed, thereby completing the hot stamping work; wherein the hot stamping moving speed, the trolley moving speed, and the hot stamping gold foil reel receiving speed are consistent, and due to the hot stamping heating, the hot stamping gold foil may be extended due to heating, and the receiving servo motor will increase the compensation coefficient, and automatically add the compensation coefficient according to the amount of heating started, so as to ensure that the hot stamping effect of the hot stamping head position is consistent with the actual height. .

[0046] Working principle: Plateless hot stamping: no need to make hot stamping plates, saving plate making costs and time. Plateless hot stamping has the advantages of immediate arrangement and printing, which overturns the shortcomings of traditional plate making and hot stamping, which has complicated procedures and long cycles.

[0047] The working pressure of the hot stamping head is controlled by a voice coil motor, which moves up and down (Z direction) along the linear guide rail, and the pressure is adjustable and controllable. The voice coil motor has a simple structure and fast dynamic response speed, which improves work efficiency.

[0048] Roll-type hot stamping gold foil: The gold foil is rolled by the traction-type hot stamping machine, and the traction mechanism driven by the hybrid stepper motor accurately controls the speed of the gold foil, and then cooperates with the trolley controlled by the servo motor to move along the beam (Y direction). Through precise program matching, the gold foil rolling speed is consistent with the trolley movement speed, thereby improving the hot stamping quality and speed. (The traction mechanism consists of steel thorns, rubber rods and a clamping mechanism. The gold foil is between the steel thorns and the rubber rods. The clamping mechanism pushes the rubber rod to press the gold foil on the steel thorns. The stepper motor drives the steel thorns to rotate, and the friction between the gold foil and the steel thorns drives the gold foil to move, and then the waste is collected by the reel).

[0049] The hot stamping head has a built-in directional positioning heating mechanism. According to the set hot stamping content, it scans the current hot stamping area in sequence and starts the corresponding hot stamping head heating to realize the hot stamping operation of the hot stamping head with digital dynamic heating control. The hot stamping head is an existing technology;

[0050] The hot stamping speed is CNC adjustable. The hot stamping moving speed is consistent with the moving speed of the trolley and the reeling speed of the hot stamping foil. Due to the hot stamping heating, the hot stamping foil may be extended due to heating. The reeling servo motor will increase the compensation coefficient. According to the amount of heating, the compensation coefficient is automatically added to ensure that the hot stamping effect of the hot stamping head position is consistent with the actual height.

[0051] The clamping mechanism provides a highly synchronized clamping force between the hot stamping gold foil roll reel and the servo motor to reduce the risk of slipping. The clamping force can be customized with a stable compression spring according to needs.

[0052] The video recognition system uses a pre-made algorithm to identify the position mark points on the cardboard or other objects to be stamped through the camera, and then calculate the entire placement of the cardboard or other objects to be stamped, and then virtually place the desired stamping content image at the corresponding position, thereby obtaining a stamping effect consistent with the cardboard or other objects to be stamped. The stamping head has two adaptive capabilities: one is the adaptive process of the stamping head around the mounting screw axis, and the other is the adaptive process of the stamping head in the Z direction; the advantage of adaptability is that it automatically adapts to deviations caused by slight tilts on the work surface, cardboard, workpieces, etc., and does not affect the quality of stamping;

[0053] The two dumbbell-shaped deflection-correcting wheels utilize the elastic deformation characteristics of the hot stamping gold foil tape. Under the action of the winding tension of the hot stamping gold foil tape in the working state, the hot stamping gold foil tape forms a certain tension difference in the middle and two sides of the dumbbell-shaped deflection-correcting wheel, so that the hot stamping gold foil tape will not slip sideways on the dumbbell-shaped deflection-correcting wheel and fail.

[0054] The working method is mainly reflected in the algorithm prefabricated in the video recognition system, which uses scanning and calculation of the identification points to obtain the fusion of the hot stamping process with the hot stamping object; on the other hand, the hot stamping head uses the load of the hot stamping amount as an information parameter and attaches it to the hot stamping gold foil roll reeling speed. As the hot stamping load increases, the heating amount will inevitably increase, and the increase in the added amount will inevitably cause the hot stamping gold foil roll to expand and elongate. Although the amount is small, it will accumulate and become more, which may cause material accumulation. By using the real-time load information of the hot stamping head and attaching it to the hot stamping gold foil roll reeling speed, an automatic feedback system can be formed to automatically adjust the hot stamping gold foil roll reeling speed.

[0055] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A digital hot stamping mechanism, comprising a workbench, a trolley, a beam, a synchronous belt and a servo motor, wherein the trolley is mounted on the beam through a guide rail, the trolley is connected to the servo motor through a synchronous belt and is controlled by the servo motor to move back and forth along the beam, characterized in that: The trolley is a gilding head trolley, which includes a frame, a gilding head, a gilding head frame, a voice coil motor and its guide mechanism, a stepper motor, a take-up drum, a gold foil roll, an unwinding drum, a plurality of guide wheels, a traction mechanism and an identification camera. The take-up drum, the traction mechanism, the plurality of guide wheels and the unwinding drum are fixed on the front of the frame. The gold foil roll is fixed on the unwinding drum. The gold foil on the gold foil roll passes through a plurality of guide wheels and the traction mechanism in sequence and is finally fixed on the take-up drum. The stepper motor is installed on the back of the frame and is connected with the traction mechanism and the take-up drum to drive the traction mechanism and the take-up drum to rotate and pull the gold foil. Two of the plurality of guide wheels are located below the frame. The gilding head is installed on the voice coil motor and its guide mechanism through the gilding head frame and is controlled by the voice coil motor to move up and down. The gilding head is located between the two guide wheels below the frame, and the gilding head is facing downward and pressing on the gold foil from top to bottom. The identification camera is fixed below the frame to identify the pattern and provide data for subsequent positioning and identification.

2. A digital hot stamping mechanism according to claim 1, characterized in that: The gilding head frame is a 7-shaped structure, the top of the 7-shaped structure is connected to the guide mechanism of the voice coil motor, and a horizontal hole is provided at the bottom. The gilding head is installed on the hole through a screw shaft. The gilding head can rotate along the screw shaft. When the gilding head frame applies downward pressure, the gilding head adapts around the mounting screw shaft.

3. A digital hot stamping mechanism according to claim 1, characterized in that: An L-shaped connecting plate is arranged at the back of the frame, and linear bearings are arranged at the vertical direction and the horizontal direction of the L-shaped connecting plate, and the L-shaped connecting plate is fixed on the guide rail of the crossbeam through the linear bearings.

4. A digital hot stamping mechanism according to claim 1, characterized in that: One or two of the plurality of guide wheels are deviation correcting wheels.

5. A digital hot stamping mechanism according to claim 4, characterized in that: The deviation correcting wheel is a dumbbell-shaped roller.

6. A digital hot stamping mechanism according to claim 1, characterized in that: The traction mechanism includes a steel thorn roller, a rubber roller and a traction mechanism fixing frame. The traction mechanism fixing frame is a rectangular frame. The steel thorn roller and the rubber roller are both arranged inside the rectangular frame. The steel thorn roller is fixedly installed. The rubber roller is fixed by a constant force pressing mechanism and is driven by the constant force pressing mechanism to move toward or away from the steel thorn roller.

7. A digital hot stamping mechanism according to claim 6, characterized in that: The constant force clamping mechanism includes a C-frame, a pressure spring and a constant force clamping switching handle. The two ends of the rubber roller are fixed to the inner side of the C-frame through bearings, and the outer side of the C-frame is fixed to the inner side of the traction mechanism fixing frame through a pressure spring. A guide column and a guide sleeve are also provided at the middle position of the outer side of the C-frame. The guide sleeve is fixed on the traction mechanism fixing frame. The guide column is arranged on the guide sleeve and a constant force clamping switching handle is provided at the free end.

8. A digital hot stamping mechanism according to claim 6, characterized in that: The steel thorn roller is connected with the stepping motor.

9. A working method of a digital hot stamping mechanism, characterized in that: The movement of the gold foil is controlled by a stepper motor that drives the traction mechanism and the take-up drum. The speed of the gold foil is precisely controlled by the stepper motor that drives the traction mechanism. The trolley controlled by the servo motor moves along the beam. Through precise program matching, the gold foil rolling speed is consistent with the trolley moving speed, thus completing the hot stamping work.

10. A digital hot stamping mechanism working method according to claim 9, characterized in that: The hot stamping moving speed, the trolley moving speed, and the hot stamping gold foil roll receiving speed are all the same. Due to the hot stamping heating, the hot stamping gold foil may extend due to heating, and the receiving servo motor will increase the compensation coefficient. According to the amount of heating started, the compensation coefficient will be automatically added to ensure that the hot stamping effect of the hot stamping head position is consistent with the actual height.

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