Multi-head gold stamping integrated mechanism and technological method thereof

Abstract

The invention belongs to the technical field of gilding, and particularly relates to a multi-head gilding integrated mechanism which comprises a workbench, one or more trolleys, a cross beam, a synchronous belt and a servo motor, the trolleys are connected with the servo motor through the synchronous belt and controlled by the servo motor to move back and forth along the cross beam, the trolleys are multi-head gilding module trolleys, and the multi-head gilding module trolleys are connected with the workbench. The multi-head gilding module trolley comprises a frame and a plurality of gilding modules, the defects in the prior art are overcome, the gilding modules and one or more multi-head gilding module trolleys are arranged and combined at will according to actual requirements, multi-color gilding can be achieved, meanwhile, gilding heads are made into standard structures (gilding modules) and combined rapidly according to requirements, and the gilding efficiency is improved. Multi-head hot stamping is achieved, one-time finished products are obtained, the hot stamping quality is improved, and meanwhile the production efficiency is greatly improved.

Description

Technical Field

[0001] The invention belongs to the technical field of hot stamping, and in particular relates to a multi-head hot stamping integrated mechanism and a process 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 process methods. At the same time, the existing hot stamping technology is complex for multi-color hot stamping, the combination is troublesome, and the hot stamping efficiency is relatively low. Summary of the invention

[0007] The purpose of the present invention is to provide a multi-head hot stamping integrated mechanism and a process method thereof, which overcomes the shortcomings of the prior art, and provides a plurality of hot stamping modules and one or more multi-head hot stamping module trolleys, which can be arbitrarily combined according to actual needs to achieve hot stamping of various colors. At the same time, the hot stamping heads are made into standard structures (hot stamping modules), which can be quickly combined according to needs, and multi-head hot stamping can be completed in one time, which not only improves the hot stamping quality, but also greatly improves the production efficiency.

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

[0009] A multi-head hot stamping integrated mechanism comprises a workbench, a trolley, a beam, a synchronous belt and a servo motor. The trolley is connected to the servo motor through the synchronous belt and is controlled by the servo motor to move back and forth along the beam. There are one or more trolleys, and the trolley is a multi-head hot stamping module trolley, which comprises a frame and multiple hot stamping modules.

[0010] Furthermore, the plurality of hot stamping modules are two or more.

[0011] Furthermore, there are two of the plurality of hot stamping modules, and the two hot stamping modules are symmetrically mounted on the vehicle frame.

[0012] Furthermore, the hot stamping module includes a hot stamping head, a hot stamping 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 to 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 hot stamping head is installed on the voice coil motor and its guide mechanism through the hot stamping head frame and is controlled by the voice coil motor to move up and down. The hot stamping head is located between the two guide wheels below the frame, and the hot stamping 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.

[0013] Furthermore, one or two of the plurality of guide wheels are deviation-correcting wheels.

[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, and 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 steel thorn roller is connected to a stepping motor.

[0016] A multi-head hot stamping integrated mechanism process method, which controls the movement of gold foil by controlling the traction mechanism and the winding drum 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. Through precise matching of the program, the gold foil rolling speed is consistent with the trolley moving speed, thereby completing the hot stamping work.

[0017] Furthermore, 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 expand 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.

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

[0019] The multi-head hot stamping integrated mechanism and process method described in the present invention are provided with a plurality of hot stamping modules and one or more multi-head hot stamping module trolleys, which can be arbitrarily combined according to actual needs to realize hot stamping of various colors. At the same time, the hot stamping heads are made into standard structures (hot stamping modules), which can be quickly combined according to needs, and multi-head hot stamping can be completed in one time, which not only improves the hot stamping quality, but also greatly improves the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the front structure of a multi-head hot stamping integrated mechanism.

[0021] Figure 2 It is a schematic diagram of the back structure of a multi-head hot stamping integrated mechanism.

[0022] Figure 3 It is a schematic diagram of the back structure of the multi-head hot stamping integrated mechanism of multiple carriages.

[0023] Figure 4 This is a schematic diagram of the front structure of the multi-head hot stamping module trolley.

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the multi-head hot stamping module trolley.

[0025] Figure 6 Schematic diagram of the internal structure of the traction mechanism. DETAILED DESCRIPTION

[0026] 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.

[0027] like Figure 1 , 2As shown in Figure 3, the multi-head hot stamping integrated mechanism of the present invention comprises a workbench 1, a trolley 2, a beam 11, a synchronous belt 12 and a servo motor 13. 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 one or more (such as Figure 3 ), the trolley is a multi-head hot stamping module trolley, and the multi-head hot stamping module trolley includes a frame 21 and multiple hot stamping modules 3.

[0028] Furthermore, the number of the plurality of hot stamping modules 3 is two or more, the number of the plurality of hot stamping modules is two, and the two hot stamping modules are symmetrically mounted on the vehicle frame.

[0029] Specifically, several hot stamping modules 3 and a trolley can be combined arbitrarily according to actual needs to achieve hot stamping in various colors. At the same time, the hot stamping head is made into a standard structure (hot stamping module), which can be quickly combined according to needs, and multiple heads can be hot stamped at one time, which not only improves the hot stamping quality, but also greatly improves the production efficiency.

[0030] Embodiment 2

[0031] Furthermore, the hot stamping module 3 includes a hot stamping head 31, a hot stamping head frame 32, a voice coil motor and its guide mechanism 33, a stepping motor 34, a winding drum 36, a gold foil roll, a discharge drum 37, a plurality of guide wheels 38, a traction mechanism 35 and an identification camera. The winding drum 36, the traction mechanism 35, the plurality of guide wheels 38 and the discharge drum 37 are fixed on the front of the frame 21, the gold foil roll is fixed on the discharge drum, the gold foil on the gold foil roll passes through a plurality of guide wheels 38 and the traction mechanism 35 in sequence, and is finally fixed on the winding drum, the stepping motor 34 is installed on the back of the frame 21 and is connected to the traction mechanism 35 and the winding drum 36, driving the traction mechanism 35 and the winding drum 36 to rotate and pull the gold foil. Two of the several guide wheels are located under the frame. The hot stamping head 31 is installed on the voice coil motor and its guide mechanism 33 through the hot stamping head frame 32 and is controlled by the voice coil motor to move up and down. The hot stamping head is located between the two guide wheels under the frame, and the hot stamping 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.

[0032] Furthermore, one or two of the plurality of guide wheels are deviation-correcting wheels.

[0033] Furthermore, the traction mechanism includes a steel thorn roller 351, a rubber roller 352 and a traction mechanism fixing frame 353. 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 clamping mechanism 354 and is driven by the constant force clamping mechanism to move toward or away from the steel thorn roller.

[0034] Furthermore, the steel thorn roller is connected to a stepping motor.

[0035] Embodiment 3

[0036] A multi-head hot stamping integrated mechanism process method, which controls the movement of gold foil by driving the traction mechanism and the 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 matching of the program, the gold foil rolling speed is consistent with the trolley moving speed, thereby completing the hot stamping work. The hot stamping moving speed, the trolley moving speed, and the hot stamping gold foil reel receiving speed are consistent. 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. According to the size of the 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.

[0037] 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.

[0038] 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.

[0039] 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).

[0040] 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;

[0041] 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.

[0042] 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.

[0043] 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;

[0044] 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.

[0045] 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 integration 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. Because the hot stamping load increases, the heating amount is bound to increase, and the increase in the amount added is bound to 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.

[0046] 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 multi-head hot stamping integrated mechanism, comprising a workbench, a trolley, a beam, a synchronous belt and a servo motor, wherein 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: There are one or more trolleys, and the trolley is a multi-head hot stamping module trolley, and the multi-head hot stamping module trolley includes a frame and multiple hot stamping modules.

2. A multi-head hot stamping integrated mechanism according to claim 1, characterized in that: The number of the plurality of hot stamping modules is two or more.

3. A multi-head hot stamping integrated mechanism according to claim 2, characterized in that: There are two of the plurality of hot stamping modules, and the two hot stamping modules are symmetrically mounted on the vehicle frame.

4. A multi-head hot stamping integrated mechanism according to any one of claims 1 to 3, characterized in that: The hot stamping module includes a hot stamping head, a hot stamping 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 hot stamping drum to drive the traction mechanism and the hot stamping drum to rotate and pull the gold foil. Two of the plurality of guide wheels are located below the frame. The hot stamping head is installed on the voice coil motor and its guide mechanism through the hot stamping head frame and is controlled by the voice coil motor to move up and down. The hot stamping head is located between the two guide wheels below the frame, and the hot stamping head is pressed against the gold foil from top to bottom with the hot stamping head facing downward. The identification camera is fixed below the frame to identify the pattern and provide data for subsequent positioning and identification.

5. The multi-head hot stamping integrated mechanism according to claim 4, characterized in that: One or two of the plurality of guide wheels are deviation correcting wheels.

6. The multi-head hot stamping integrated mechanism according to claim 4, 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. The multi-head hot stamping integrated mechanism according to claim 6, characterized in that: The steel thorn roller is connected with the stepping motor.

8. A multi-head hot stamping integrated mechanism process method, 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.

9. A multi-head hot stamping integrated mechanism process 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.

Images