Synergistic gold stamping device and process

Abstract

The synergistic gold stamping device comprises a feeding mechanism, a gold stamping mechanism, a gold stamping mechanism, a gold stamping mechanism, a gold stamping mechanism, a gold stamping mechanism and a gold stamping mechanism, the synergistic mechanism is used for spraying gloss oil to the materials through a digital nozzle and curing the gloss oil to achieve synergistic processing; the flat plate hot gold stamping mechanism is used for performing flat plate hot gold stamping on the material; and the discharging mechanism is used for discharging the machined materials, and the feeding mechanism, the efficiency increasing mechanism, the flat plate hot gold stamping mechanism and the discharging mechanism are combined to form a machining path. The beneficial effects of the invention are that through the combination of the synergy mechanism and the flat plate hot-stamping mechanism, the flat plate hot-stamping digital synergy function integrating high precision, wide material adaptability, high flexibility and high stability is realized, and the blank in the prior art is filled; and the ever-increasing requirements of the market for high-quality, high-efficiency and personalized post-press processing are met.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of gilding, and particularly relates to a synergistic gilding device and process. BACKGROUND

[0002] In the printing and packaging industry, in order to improve the visual aesthetics and added value of products, post-printing synergistic treatments such as film lamination, glossing, gilding, etc. are usually performed on the surface of printed matter. Among them, the gilding process can impart a strong metallic texture and high-end appearance to the product, while digital synergistic effects (such as partial UV, 3D raised, etc.) can achieve rich personalized effects. At present, the equipment on the market that realizes the functions of gilding and synergistic effect mainly follows two technical paths, but both have obvious limitations.

[0003] The first technical path is a film lamination and gilding equipment based on a roll-to-roll (Roll-to-Roll) continuous production mode. For example, a Chinese invention patent with the authorization announcement number CN118181941B discloses a digital printing film lamination and post-printing synergistic equipment. This type of equipment usually includes multiple separate units such as paper lamination, gloss oil spraying and gilding, cutting and stacking, etc. The printing substrate is conveyed in the form of a roll between multiple roller groups and sequentially completes the film lamination, UV gloss oil spraying, curing and roll gilding processes. Although this technology is suitable for large-scale continuous production, it has inherent defects: first, due to the use of dynamic roll-to-roll conveying mode, the printing substrate is prone to deviation during operation, although this type of equipment is equipped with complex air hole adsorption and mechanical pushing type correction mechanisms, but it is a passive response correction, which cannot fundamentally eliminate dynamic errors, resulting in difficulty in further improving the register accuracy of gilding and digital spraying, and cannot meet the requirements of high-precision fine gilding. Secondly, its roll gilding structure and long-distance conveying path make it mainly suitable for flexible roll materials such as thin film, thin paper, etc., and it is difficult to handle rigid or heavy printing materials such as cardboard, leather, etc., and the application field is greatly limited. In addition, this type of equipment has many modules, large floor area, and when dealing with small batch orders, the version changing and debugging process is complex, the production preparation time is long, and the efficiency and economy are poor.

[0004] The second technological approach is also based on roll-to-roll printing, but focuses more on combining digital printing with hot stamping. For example, Chinese invention patent CN218020754U discloses a multi-functional UV digital hot stamping enhancement machine. This equipment, through the cooperation of unwinding and rewinding components, a web guiding mechanism, a coding box, and a laminating component, aims to achieve integrated digital coding and hot stamping operations. While this technology utilizes the flexibility of digital technology to some extent, it is essentially a specialized device for flexible roll materials such as labels. Its shortcomings include: First, its operating mode means it also faces the registration accuracy bottleneck caused by the dynamic movement of the roll material, requiring real-time correction by a web guiding mechanism, with the accuracy limit constrained by the response speed of the mechanical and control systems. Second, its application is specifically for roll labels; rigid or single-sheet materials cannot be processed on this equipment, greatly limiting its application in the broader markets of high-end packaging and commercial printing. Third, its process includes lamination and peeling steps specifically designed for roll labels, resulting in a complex structure that is unsuitable for non-roll substrates.

[0005] In summary, existing hot stamping enhancement equipment, whether focusing on traditional lamination hot stamping or digital hot stamping, has failed to effectively address the challenge of simultaneously achieving high-precision registration, broad material adaptability, and flexibility for small-batch production. Currently, there are no reported technical solutions that integrate the high precision and high pressure advantages of flatbed hot stamping with the plateless and flexible advantages of digital enhancement on a single rigid platform. Therefore, there is an urgent need in this field for a new type of equipment that can fundamentally overcome the limitations of existing roll-to-roll technology, meeting the modern market's pressing demands for high-quality, small-batch, and personalized post-press processing with higher precision, wider applicability, and higher efficiency. Summary of the Invention

[0006] To address the aforementioned problems, the primary objective of this invention is to provide a flatbed hot stamping digital enhancement equipment and process that integrates high precision, wide material adaptability, high flexibility, and high stability, thereby filling the gaps in the existing technology and meeting the growing market demand for high-quality, high-efficiency, and personalized post-printing processing.

[0007] To achieve the above objectives, the technical solution of the present invention is as follows:

[0008] This invention provides an enhanced hot stamping device, characterized in that it comprises:

[0009] The feeding mechanism is used for feeding materials.

[0010] The enhancement mechanism is used to apply varnish to materials using a digital printhead and then cure it to achieve enhanced processing.

[0011] Flatbed hot stamping mechanism, used for hot stamping materials on a flatbed surface;

[0012] The feeding mechanism is used to unload processed materials.

[0013] The flat plate hot stamping mechanism is one or more, and the flat plate hot stamping mechanism is located between the feeding mechanism and the efficiency-enhancing mechanism, or

[0014] The flat plate hot stamping mechanism is one or more, and the flat plate hot stamping mechanism is located between the feeding mechanism and the efficiency-enhancing mechanism, or

[0015] There are two or more flat hot stamping mechanisms, with at least one flat hot stamping mechanism located between the feeding mechanism and the efficiency-enhancing mechanism, and at least one flat hot stamping mechanism located between the unloading mechanism and the efficiency-enhancing mechanism.

[0016] The feeding mechanism, efficiency enhancement mechanism, flat hot stamping mechanism, and unloading mechanism are combined to form a processing path.

[0017] Furthermore, the feeding mechanism includes a feeding roller, a correction component, and a feed roller arranged in sequence.

[0018] Furthermore, the feeding mechanism also includes a feeding frame, and the correction assembly includes a first correction assembly and a second correction assembly. Both the first and second correction assemblies are mounted on the feeding frame, with the first correction assembly located at one end of the feeding frame and the second correction assembly located at the other end. Preferably, the material is mounted in a roll on the feeding roller. After being guided and corrected by the first correction assembly, it enters the feeding deflector roller assembly. After at least one deflection, it enters the second correction assembly for guidance and correction, and finally, after being guided by the feed roller, it enters the enhancement mechanism or the flat hot stamping mechanism. The first and second correction assemblies are conventional correction structures in the prior art and will not be described in detail here.

[0019] Furthermore, the feeding steering roller assembly includes a first feeding steering roller, a second feeding steering roller, and a third feeding steering roller arranged sequentially. The steering angle from the first feeding steering roller to the second feeding steering roller is greater than or equal to 90 degrees, the steering angle from the second feeding steering roller to the third feeding steering roller is greater than or equal to 90 degrees, and the steering angle from the third feeding steering roller to the second correction assembly is greater than or equal to 90 degrees.

[0020] Furthermore, the feeding mechanism also includes a feeding frame and an angle adjustment component. The feeding roller, the first correction component, the feeding steering roller component, the second correction component, and the feeding roller are all mounted on the feeding frame. The feeding roller is rotatably connected to the feeding frame via a mounting plate. One end of the angle adjustment component is mounted on the feeding frame, and the other end of the angle adjustment component is connected to the mounting plate to drive the mounting plate to rotate, thereby driving the feeding roller to move to adjust the feeding angle.

[0021] Furthermore, the flat hot stamping mechanism includes:

[0022] Two or more server hosts;

[0023] Flat hot stamping assembly, used to perform flat hot stamping operations;

[0024] The dual servo host is connected to the flat hot foil stamping assembly and is used to drive the flat hot foil stamping assembly to perform the hot foil stamping action; wherein,

[0025] The two or more servo hosts are preferably dual servo hosts, and the dual servo hosts include:

[0026] The first driving component is used to drive the flat hot stamping component to perform the flat hot stamping action.

[0027] The second driving component is used to drive the flat hot stamping component to perform the flat hot stamping action.

[0028] The controller is electrically connected to the first drive component and the second drive component and is used to control the operation of the first drive component and the second drive component.

[0029] Furthermore, the first encoder is used to detect the rotational position of the first drive component;

[0030] The second drive component includes: a second encoder for detecting the rotational position of the second drive component;

[0031] The controller is configured to control the first drive component and the second drive component based on the feedback signals of the first encoder and the second encoder, so as to achieve synchronization of the first drive component and the second drive component. When the difference between the rotation position detected by the first encoder and the rotation position detected by the second encoder is greater than a preset safety value, the servo host is determined to be abnormal.

[0032] Furthermore, the flat hot stamping assembly includes a hot stamping machine frame, a hot stamping plate, and a pressure beam;

[0033] The first drive assembly includes a first camshaft, and the first camshaft includes a first eccentric shaft and a first eccentric cam disposed on the first eccentric shaft;

[0034] The second drive assembly includes a second camshaft, the second camshaft including a second eccentric shaft and a second eccentric cam disposed on the second eccentric shaft;

[0035] The first camshaft and the second camshaft are connected to the hot stamping plate via the top pin assembly; the first eccentric cam and the second eccentric cam are used together to drive the hot stamping plate to perform up and down movement.

[0036] Furthermore, the flat hot stamping mechanism also includes a material storage swing structure, which includes:

[0037] The first drive axis is connected to the first servo motor;

[0038] The second drive shaft is connected to the second servo motor; the second drive shaft is spaced apart from the first drive shaft and is used to jointly transport the material, i.e. the material to be hot-stamped.

[0039] The material handling controller is used to calculate and dynamically distribute drive torque to the first servo motor and the second servo motor, so that the first drive shaft and the second drive shaft can work together. This fundamentally solves all the inherent defects of the traditional single drive shaft dragging driven shaft mode, and achieves load balancing, high-precision control and high-speed operation.

[0040] Furthermore, the first drive shaft and the second drive shaft are arranged in parallel.

[0041] The first and second drive shafts are arranged parallel to each other; the first and second drive shafts work together to maintain the preset material tension. This ensures that the hot stamping material is subjected to uniform force and has a stable running trajectory during transmission, preventing material deviation or wrinkling, and providing a key mechanical prerequisite for the high-precision and high-stability operation of the entire structure.

[0042] Furthermore, the storage swing structure also includes:

[0043] A first conveyor belt is wound around the first end of the first drive shaft and the first end of the second drive shaft;

[0044] The second conveyor belt is wound around the second end of the first drive shaft and the second end of the second drive shaft.

[0045] Furthermore, the first conveyor belt and the second conveyor belt are arranged in parallel.

[0046] This is equivalent to constructing a rigid transmission frame connecting the first and second drive shafts. The first and second drive shafts are linked at both ends by the first and second conveyor belts, making the first and second drive shafts a highly coordinated whole. This greatly enhances the rigidity and synchronization of the structure, ensuring that the hot stamping material has consistent tension in the width direction, thus laying the foundation for processing wide materials.

[0047] Furthermore, the storage swing structure also includes:

[0048] The first driven shaft is connected to the first driving shaft via the first conveyor belt and the second conveyor belt;

[0049] The second driven shaft is connected to the second driving shaft via the first conveyor belt and the second conveyor belt.

[0050] Furthermore, the first driven shaft is arranged parallel to the first driving shaft; the second driven shaft is arranged parallel to the second driving shaft.

[0051] By introducing the first driven shaft and the second driven shaft, together with the first conveyor belt, the second conveyor belt, the first drive shaft, and the second drive shaft, a complete swing storage circuit is formed. This is the key mechanical structure for realizing the cyclic action of material storage, static hot stamping, and material feeding in the hot stamping process. This material storage swing structure can store and release materials to match the intermittent action requirements of subsequent processes.

[0052] Furthermore, the storage swing structure also includes:

[0053] A first mounting bracket is disposed on the first conveyor belt; the first end of the first driven shaft and the first end of the second driven shaft are respectively connected to the first mounting bracket;

[0054] A second mounting bracket is disposed on the second conveyor belt; the second end of the first driven shaft and the second end of the second driven shaft are respectively connected to the second mounting bracket.

[0055] The first end of the first driven shaft and the first end of the second driven shaft are fixed by the first mounting bracket, and the second end of the first driven shaft and the second end of the second driven shaft are fixed by the second mounting bracket. This makes the entire swing component, namely the first mounting bracket, the second mounting bracket, the first driven shaft, the second driven shaft and the material between them, a rigid and integrated motion unit. This ensures the high stability and consistency of the material storage swing action, completely eliminates the interference and shaking that may be caused by the independent swing of multiple components, and achieves high-speed and stable operation without producing material wrinkles.

[0056] Furthermore, the efficiency-enhancing mechanism includes:

[0057] Varnish assembly, storing and supplying varnish;

[0058] Several digital printheads are connected to the varnish assembly and are used to spray varnish onto the material surface;

[0059] The first curing component is used to pre-cure the varnish;

[0060] The second curing component is used for the final curing of the pre-cured varnish;

[0061] The feed roller assembly is used to transport the material being processed and to pass the material sequentially under the nozzle, through the first curing assembly, and through the second curing assembly.

[0062] The varnish assembly can be a conventional varnishing machine. The first curing assembly is a first curing lamp, and the second curing assembly can be a second curing lamp. The first and second curing lamps are preferably UV lamps. Preferably, several nozzles are arranged in an array. The feed roller assembly includes multiple feed rollers.

[0063] Furthermore, the enhancement mechanism also includes an enhancement frame, on which the varnish assembly, the first curing assembly, the second curing assembly, and the feed roller assembly are all mounted.

[0064] Furthermore, the feeding mechanism includes a feeding roller, a feeding frame, and an angle adjusting component. The feeding roller is mounted on the feeding frame and is rotatably connected to the feeding frame via a mounting plate. One end of the angle adjusting component is mounted on the feeding frame, and the other end of the angle adjusting component is connected to the mounting plate to drive the mounting plate to rotate, thereby driving the feeding roller to move and adjust the feeding angle.

[0065] The present invention also provides an enhanced hot stamping process, characterized in that the process includes: feeding materials;

[0066] Flat hot stamping: applying hot stamping to materials on a flat surface.

[0067] Enhanced processing involves spraying and curing a clear coat onto the material before and / or after hot stamping on a flat panel.

[0068] Material cutting: cutting the processed materials into smaller pieces.

[0069] Compared with the prior art, the beneficial effects of the present invention are: by combining the enhancement mechanism and the flat hot foil stamping mechanism, a digital enhancement function of flat hot foil stamping that integrates high precision, wide material adaptability, high flexibility and high stability is realized, filling the gap in the prior art and meeting the growing market demand for high-quality, high-efficiency and personalized post-printing processing. Attached Figure Description

[0070] Figure 1 This is a schematic diagram of the overall structure of the enhanced hot stamping device of the present invention.

[0071] Figure 2 This is a structural schematic diagram of the feeding mechanism of the present invention from the first angle.

[0072] Figure 3 This is a schematic diagram of the feeding mechanism of the present invention from the second angle.

[0073] Figure 4 This is a schematic diagram illustrating the material path of the feeding mechanism of the present invention.

[0074] Figure 5 This is a schematic diagram of the first angle of the flat hot stamping mechanism of the present invention.

[0075] Figure 6 This is a schematic diagram of the second angle of the flat hot stamping mechanism of the present invention.

[0076] Figure 7 yes Figure 6 A structural diagram of the hot stamping machine frame, partially concealed.

[0077] Figure 8 This is a schematic diagram of the hot stamping base of the present invention.

[0078] Figure 9 yes Figure 8 A partial structural diagram.

[0079] Figure 10 This is a schematic diagram of the structure of the first driving component and the second driving component of the present invention.

[0080] Figure 11 This is a schematic diagram illustrating the material path of the flat hot stamping mechanism of the present invention.

[0081] Figure 12 This is a schematic diagram of the material storage swing structure of the present invention.

[0082] Figure 13 This is a schematic diagram of the enhancement mechanism of the present invention.

[0083] Figure 14 This is the present invention. Figure 13 The structural diagram of the enhancement rack is partially hidden.

[0084] Figure 15 This is a schematic diagram illustrating the material path of the enhancement mechanism of the present invention.

[0085] Figure 16 This is a structural schematic diagram of the feeding mechanism of the present invention from the first angle.

[0086] Figure 17 This is a schematic diagram of the material feeding mechanism of the present invention from a second angle.

[0087] Figure 18 This is a schematic diagram illustrating the material path of the feeding mechanism of the present invention.

[0088] In the picture:

[0089] A. Materials;

[0090] 1. Feeding mechanism; 11. Feeding roller; 12. First correction assembly; 13. Feeding guide roller assembly; 14. Second correction assembly; 15. Feeding roller; 16. Feeding frame; 17. Angle adjustment component; 18. Mounting plate; 131. First feeding guide roller; 132. Second feeding guide roller; 133. Third feeding guide roller;

[0091] 2. Enhancement mechanism; 21. Varnish assembly; 22. Spray nozzle; 23. First curing assembly; 24. Second curing assembly; 25. Feed roller assembly; 26. Enhancement frame;

[0092] 3. Flatbed hot stamping mechanism; 31. Dual servo main unit; 32. Hot stamping assembly; 33. Top pin assembly; 34. Material storage swing structure; 35. Receiving roller; 36. Waste material winding table; 37. Material sorting roller group; 38. Discharge roller; 311. First drive assembly; 312. Second drive assembly; 321. Hot stamping frame; 322. Hot stamping plate table; 341. First drive shaft; 342. First servo motor; 343. Second drive shaft; 344. Second servo motor; 345. First conveyor belt; 346. Second conveyor belt; 347. First driven shaft; 348. Second driven shaft; 349. First mounting bracket; 340. Second mounting bracket; 3111. First camshaft; 3112. First motor; 3113. First detection unit; 3121. Second camshaft; 3122, Second motor; 3123, Second detection unit; 3221, Flat hot stamping mold; 31111, First eccentric shaft; 31112, First eccentric cam; 31211, Second eccentric shaft; 31212, Second eccentric cam;

[0093] 4. Feeding mechanism; 41. Feeding roller; 42. Feeding frame; 43. Angle adjustment component; 44. Mounting plate. Detailed Implementation

[0094] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0095] To achieve the above objectives, the technical solution of the present invention is as follows:

[0096] See Figures 1-18 As shown, the present invention provides an enhanced hot stamping device, comprising:

[0097] Feeding mechanism 1 is used for feeding material A;

[0098] Enhancement mechanism 2 is used to spray varnish onto material A using a digital printhead and then cure it to achieve enhanced processing.

[0099] Flat hot stamping mechanism 3 is used to perform flat hot stamping on material A;

[0100] The feeding mechanism 4 is used for feeding the processed material A;

[0101] There is one or more hot stamping mechanisms 3 for flat plates, and these mechanisms are located between the feeding mechanism 1 and the efficiency-enhancing mechanism 2.

[0102] There is one or more hot stamping mechanisms 3 for flat plates, and these mechanisms are located between the feeding mechanism 4 and the efficiency-enhancing mechanism 2.

[0103] There are two or more flat hot stamping mechanisms 3, with at least one flat hot stamping mechanism 3 located between the feeding mechanism 1 and the efficiency-enhancing mechanism 2, and at least one flat hot stamping mechanism 3 located between the unloading mechanism 4 and the efficiency-enhancing mechanism 2.

[0104] The feeding mechanism 1, efficiency enhancement mechanism 2, flat hot stamping mechanism 3, and unloading mechanism 4 are combined to form the processing path.

[0105] In this embodiment, the feeding mechanism 1 includes a feeding roller 11, a first correction component 12, a feeding guide roller assembly 13, a second correction component 14, and a feed roller 15 arranged sequentially. Material A is mounted on the feeding roller 11 in a roll form. After being guided and corrected by the first correction component 12, it enters the feeding guide roller assembly 13. After at least one deflection, it enters the second correction component 14 for guidance and correction, and finally enters the enhancement mechanism 2 or the flat hot stamping mechanism 3 after being guided by the feed roller 15. The first correction component 12 and the second correction component 13 are conventional correction structures in the prior art, and will not be described in detail here.

[0106] In this embodiment, the feeding guide roller assembly 13 includes a first feeding guide roller 131, a second feeding guide roller 132, and a third feeding guide roller 133 arranged sequentially. The turning angle of material A from the first feeding guide roller 131 to the second feeding guide roller 132 is greater than or equal to 90 degrees, the turning angle of material A from the second feeding guide roller 132 to the third feeding guide roller 133 is greater than or equal to 90 degrees, and the turning angle of material A from the third feeding guide roller 133 to the second correction assembly 14 is greater than or equal to 90 degrees.

[0107] In this embodiment, the feeding mechanism 1 further includes a feeding frame 16 and an angle adjustment component 17. The feeding roller 11, the first correction component 12, the feeding guide roller component 13, the second correction component 14, and the feed roller 15 are all mounted on the feeding frame 16. The feeding roller 11 is rotatably connected to the feeding frame 16 through the mounting plate 18. One end of the angle adjustment component 17 is mounted on the feeding frame 16, and the other end of the angle adjustment component 17 is connected to the mounting plate 18 to drive the mounting plate 18 to rotate, thereby driving the feeding roller 11 to move to adjust the feeding angle. In this embodiment, the angle adjustment component 17 is a telescopic cylinder.

[0108] In this embodiment, the flat hot stamping mechanism 3 includes:

[0109] Dual-servo host 31;

[0110] Flat hot stamping component 32 is used to perform flat hot stamping operations;

[0111] The top pin assembly 33 and the dual servo host 31 are connected to the hot stamping assembly 32 through the top pin assembly 33 and are used to drive the hot stamping assembly 32 to perform hot stamping actions.

[0112] The front end of the flat hot stamping mechanism also includes a receiving roller 35 for receiving material A, and the top end of the flat hot stamping mechanism is also provided with a waste material take-up table 36. Two waste material take-up tables 36 are arranged opposite each other, and each waste material take-up table 36 is equipped with at least one waste material take-up roller. Each waste material take-up table 36 is connected to a material feeding roller group 37, and each material feeding roller group 37 can form a processing path with the receiving roller 35. The material feeding roller group 37 is a structure formed by combining multiple rollers. This arrangement of two material feeding roller groups 37 allows the device to simultaneously perform hot stamping processing on two materials, doubling the efficiency and making efficient use of space. The sum of the widths of the two material feeding roller groups 37 is less than the width of the hot stamping assembly 32, thus giving the hot stamping assembly 32 sufficient space to process two materials simultaneously. The rear end of the flat hot stamping mechanism also includes a receiving and discharging roller 38 for feeding material A out of the flat hot stamping mechanism.

[0113] Dual-server host 31 includes:

[0114] The first drive assembly 311 includes a first camshaft 3111, a first motor 3112 disposed on the first camshaft 3111, and a first detection unit 3113, wherein the first detection unit 3113 is used to detect the first position of the first camshaft 3111.

[0115] The second drive assembly 312 includes a second camshaft 3121, a second motor 3122 disposed on the second camshaft 3121, and a second detection unit 3123. The second detection unit 3123 is used to detect the second position of the second camshaft 3121. The second camshaft 3121 is spaced apart from the first camshaft 3111.

[0116] The controller is connected to the first motor 3112, the second motor 3122, the first detection unit 3113, and the second detection unit 3123 respectively. The controller is used to compare the first position and the second position in real time. When the difference between the first position and the second position is greater than a preset safety threshold, it determines that the dual servo host 31 is abnormal. The dual servo host 31 drives the hot stamping component 32 to perform hot stamping action, improving the overall driving power and accuracy of the hot stamping station, making the hot stamping action more stable and faster in response. The top pin component 33, as the connecting part between the dual servo host 31 and the hot stamping component 32, provides buffering and elastic compensation, can absorb impact and vibration, ensure smooth hot stamping action, reduce wear on the equipment, and extend service life. The overall structure of the hot stamping station is simplified, reducing mechanical complexity and facilitating maintenance and control. By comparing the first position of the first camshaft 3111 with the second position of the second camshaft 3121 in real time by the controller, synchronous monitoring of the dual servo hosts 31 is achieved, improving the reliability and safety of the system. When the difference between the first position and the second position is greater than the preset safety threshold, the dual servo hosts 31 can be identified as abnormal in a timely manner and shutdown or alarm measures can be taken to prevent equipment failure or product defects and reduce production losses. The spaced design of the first camshaft 3111 and the second camshaft 3121 can distribute the load, reduce the risk of single point of failure, and enhance system redundancy.

[0117] In this embodiment, the first drive component 311 further includes: a first absolute encoder, used to detect the absolute rotational position of the first camshaft 3111;

[0118] The second drive assembly 312 further includes: a second absolute encoder for detecting the absolute rotational position of the second camshaft 3121;

[0119] The controller is configured to control the first motor 3112 and the second motor 3122 based on the feedback signals of the first absolute encoder and the second absolute encoder, so as to achieve synchronization of the first camshaft 3111 and the second camshaft 3121.

[0120] The absolute rotational position of the first camshaft 3111 is directly detected by the first absolute encoder, and the absolute rotational position of the second camshaft 3121 is directly detected by the second absolute encoder, without the need for a reference point, thus improving the accuracy and reliability of position detection. The controller controls the first motor 3112 and the second motor 3122 based on the feedback signals from the first and second absolute encoders, ensuring that the first camshaft 3111 and the second camshaft 3121 are strictly synchronized, reducing the phase error between them, thereby improving the consistency and quality of the hot stamping pattern and avoiding cumulative errors. This is particularly suitable for high-speed continuous operation scenarios.

[0121] In this embodiment, the hot stamping assembly 32 includes a hot stamping frame 321, a hot stamping plate 322, and at least a portion of a feed roller assembly 37; the first camshaft 3111 includes a first eccentric shaft 31111 and a first eccentric cam 31112 disposed on the first eccentric shaft 31111; the second camshaft 3121 includes a second eccentric shaft 31211 and a second eccentric cam 31212 disposed on the second eccentric shaft 31211; the hot stamping plate 322 is provided with two sets of flat hot stamping dies 3221 for realizing flat hot stamping.

[0122] The first camshaft 3111 and the second camshaft 3121 are connected to the hot stamping plate 322 via the top pin assembly 33; the first eccentric cam 31112 and the second eccentric cam 31212 are used to jointly drive the hot stamping plate 322 to perform vertical movement; the first eccentric shaft 31111 and the second eccentric shaft 31112 are used to work together with the material roller group 37 to achieve the flattening action; the first motor 3112 and the second motor 3122 operate synchronously and are used to ensure that the pressure peak acts synchronously on the full width range of the hot stamping area.

[0123] The hot stamping plate 322 is driven vertically by the first eccentric cam 31112 and the second eccentric cam 31212. The pressure is evenly distributed by the first eccentric shaft 31111 and the second eccentric shaft 31112 working together with the material roller group 37. The first motor 3112 and the second motor 3122 operate synchronously to ensure that the pressure peak acts synchronously on the full width of the hot stamping area, avoiding local pressure deficiency or overload, and improving the uniformity of the hot stamping effect. It is especially suitable for wide materials. Thus, through mechanical structure optimization, energy loss is reduced and operation is more efficient.

[0124] In this embodiment, the hot stamping plate 322 has a hot stamping area with a full width greater than or equal to 1150mm, and the pressure fluctuation within the full width range is less than or equal to 4%.

[0125] The temperature rise of the first camshaft 3111 and the second camshaft 3121 during continuous operation is less than 60°C, and the phase shift caused by thermal expansion is less than 0.02 mm.

[0126] By limiting the hot stamping area of ​​the hot stamping plate 322 to a full width of ≥1150mm, the equipment can handle large packaging or decorative materials, thus broadening its application scope. By limiting pressure fluctuation to ≤4%, stable hot stamping pressure and consistent pattern transfer are ensured, avoiding problems such as incomplete printing or smearing. The temperature rise of the first camshaft 3111 and the second camshaft 3121 during continuous operation is less than 60℃, and the phase shift of thermal expansion control is less than 0.02mm, ensuring the accuracy and stability of the equipment under long-term high-speed operation and reducing failures caused by thermal deformation.

[0127] In this embodiment, the production speed of the hot stamping component 32 is greater than or equal to 8000 times / hour, and the sharpness error of the hot stamping lines is -0.1mm to 0.1mm.

[0128] The high production speed of the hot stamping component 32 significantly improves efficiency and meets the needs of mass production. The sharpness of the stamped lines has minimal error, ensuring clear and precise edges for the design, making it suitable for high-precision hot stamping such as anti-counterfeiting labels or fine graphics, thus improving product quality.

[0129] In this embodiment, the hot stamping component 32 is used to process PET film with a thickness of less than 0.05 mm or to transfer electroplated aluminum. The first motor 3112 has a phase fine-tuning accuracy of -0.03° to 0.03° for the first eccentric cam 31112; the second motor 3122 has a phase fine-tuning accuracy of -0.03° to 0.03° for the second eccentric cam 31212.

[0130] The hot stamping component 32 can efficiently process ultra-thin materials such as PET film, avoiding material damage or deformation and expanding the applicability of the equipment; the high-precision phase fine adjustment accuracy is limited to -0.03°~0.03°, making the hot stamping position control more accurate, reducing registration errors, and is especially suitable for multi-layer composite or transfer hot stamping processes, improving the yield.

[0131] In this embodiment, the flat hot stamping mechanism 3 further includes a material storage swing structure 34, which includes:

[0132] The first drive shaft 341 is connected to the first servo motor 342;

[0133] The second drive shaft 343 is connected to the second servo motor 344; the second drive shaft 343 and the first drive shaft 341 are spaced apart and used to jointly transport material A, i.e. hot stamping material.

[0134] The material pulling controller is used to calculate and dynamically distribute the drive torque to the first servo motor 342 and the second servo motor 344 based on the tension obtained by the tension detection structure, so that the first drive shaft 341 and the second drive shaft 343 can work together.

[0135] The material storage swing structure 34 dynamically distributes torque to the first servo motor 342 and the second servo motor 344 based on the real-time tension obtained by the tension detection structure through the material pulling controller. This fundamentally solves all the inherent defects of the traditional single-drive shaft dragging driven shaft mode, and achieves load balance, high-precision control and high-speed operation.

[0136] In this embodiment, the first drive shaft 341 and the second drive shaft 343 are arranged in parallel.

[0137] The first drive shaft 341 and the second drive shaft 343 are arranged in parallel; the first drive shaft 341 and the second drive shaft 343 work together to maintain the preset material tension. This ensures that the hot stamping material is subjected to uniform force and has a stable running trajectory during transmission, preventing the material from deviating or wrinkling, and providing a key mechanical prerequisite for the high-precision and high-stability operation of the entire structure.

[0138] In this embodiment, the ratio of the driving torque dynamically allocated by the material pulling controller to the first servo motor 342 and the second servo motor 344 is 5:5 or 6:4.

[0139] The optimal load distribution strategy is clearly defined. The ratio of the driving torque of the first servo motor 342 and the second servo motor 344 is 5:5 or 6:4. This distribution ratio can maximize the balance of the load of the first servo motor 342, the second servo motor 344 and the transmission components while ensuring sufficient driving force. This effectively avoids single-point overload and maximizes the system reliability and the lifespan of core components.

[0140] In this embodiment, the storage swing structure 34 further includes:

[0141] A first conveyor belt 345 is wound around the first end of the first drive shaft 341 and the first end of the second drive shaft 343;

[0142] The second conveyor belt 346 is wound around the second end of the first drive shaft 341 and the second end of the second drive shaft 343.

[0143] In this embodiment, the first conveyor belt 345 and the second conveyor belt 346 are arranged in parallel.

[0144] This is equivalent to constructing a rigid transmission frame connecting the first drive shaft 341 and the second drive shaft 343. Through the first conveyor belt 345 and the second conveyor belt 346, the first drive shaft 341 and the second drive shaft 343 are linked at both ends, making the first drive shaft 341 and the second drive shaft 343 a highly coordinated whole. This greatly enhances the rigidity and synchronization of the structure, ensures that the hot stamping material has consistent tension in the width direction, and lays the foundation for processing wide materials.

[0145] In this embodiment, the storage swing structure 34 further includes:

[0146] The first driven shaft 347 is connected to the first driving shaft 341 via the first conveyor belt 345 and the second conveyor belt 346.

[0147] The second driven shaft 348 is connected to the second driving shaft 343 via the first conveyor belt 345 and the second conveyor belt 346.

[0148] In this embodiment, the first driven shaft 347 is arranged in parallel with the first driving shaft 341; the second driven shaft 348 is arranged in parallel with the second driving shaft 343.

[0149] By introducing the first driven shaft 347 and the second driven shaft 348, together with the first conveyor belt 345, the second conveyor belt 346, the first drive shaft 341, and the second drive shaft 343, a complete swing storage circuit is formed. This is the key mechanical structure for realizing the cyclic action of material storage, static hot stamping, and material feeding in the hot stamping process. This enables the material storage swing structure 34 to store and release materials to match the intermittent action requirements of subsequent processes.

[0150] In this embodiment, the storage swing structure 34 further includes:

[0151] A first mounting bracket 349 is disposed on a first conveyor belt 345; the first end of a first driven shaft 347 and the first end of a second driven shaft 348 are respectively connected to the first mounting bracket 349;

[0152] The second mounting bracket 340 is disposed on the second conveyor belt 346; the second end of the first driven shaft 347 and the second end of the second driven shaft 348 are respectively connected to the second mounting bracket 340.

[0153] The first end of the first driven shaft 347 and the first end of the second driven shaft 348 are fixed by the first mounting bracket 349, and the second end of the first driven shaft 347 and the second end of the second driven shaft 348 are fixed by the second mounting bracket 340. This makes the entire swing component, namely the first mounting bracket 349, the second mounting bracket 340, the first driven shaft 347, the second driven shaft 348 and the materials between them, a rigid, integrated motion unit. This ensures the high stability and consistency of the material storage swing action, completely eliminates the interference and shaking that may be caused by the independent swing of multiple components, and achieves high-speed stable operation without producing material wrinkles.

[0154] In this embodiment, the operating speed of the storage swing structure 34 is greater than or equal to 500 times / minute.

[0155] By quantifying the breakthrough speed improvement brought about by the material storage swing structure 34 of this invention, and on the basis of ensuring a stable mechanical structure, the dual main shaft drive of the first drive shaft 341 and the second drive shaft 343 increases the equipment operating speed from 300 times / minute in the traditional structure to greater than or equal to 500 times / minute, thereby significantly improving production efficiency.

[0156] In this embodiment, the accuracy range of the dynamic distribution of drive torque by the first drive shaft 341 and the second drive shaft 343 is -1% to 1%.

[0157] By quantifying the breakthrough control precision brought about by the material storage swing structure 34 of this invention, the material tension control precision is greatly improved from the traditional -5%~5% to the range of -1%~1% under the complete system coordination, which significantly improves the adaptability to material thickness and the accuracy of hot stamping position, and greatly reduces the scrap rate.

[0158] In this embodiment, the first conveyor belt 345 and the second conveyor belt 346 are used to transport cardboard materials with a weight greater than 500g and a width greater than 300mm.

[0159] By clarifying that the material storage swing structure 34 of the present invention has strong material adaptability and load-bearing capacity, based on the aforementioned synergistic effect, the material storage swing structure 34 can stably handle heavy and wide materials weighing more than 500g and 300mm or more, which greatly expands the application range and market competitiveness of the equipment.

[0160] In this embodiment, the enhancement mechanism 2 includes:

[0161] Varnish assembly 21 stores and provides varnish;

[0162] Several nozzles 22 are connected to the varnish assembly 21 for spraying varnish;

[0163] The first curing component 23 is used to pre-cure the varnish;

[0164] The second curing component 24 is used for the final curing of the pre-cured varnish;

[0165] The feed roller assembly 25 is used to transport the material A being processed and to make the material A pass sequentially below the nozzle 22, the first curing assembly 23, and the second curing assembly 24.

[0166] The varnish assembly 21 can be a conventional varnishing machine. The first curing assembly 23 is a first curing lamp, and the second curing assembly 24 is a second curing lamp. The first and second curing lamps are preferably UV lamps. Preferably, the plurality of nozzles 22 are arranged in an array. The feed roller assembly 24 includes multiple feed rollers. The feed rollers are used to transfer material A by the friction between the material A and the feed rollers after the material A is turned, or by the multiple feed rollers clamping the material A.

[0167] In this embodiment, the enhancement mechanism 2 also includes an enhancement frame 26, on which the varnish assembly 21, the first curing assembly 23, the second curing assembly 24 and the feed roller assembly 25 are all mounted.

[0168] In this embodiment, the feeding mechanism 4 includes a feeding roller 41, a feeding frame 42, and an angle adjusting member 43. The feeding roller 41 is mounted on the feeding frame 42 and is rotatably connected to the feeding frame 42 via a mounting plate 44. One end of the angle adjusting member 43 is mounted on the feeding frame 42, and the other end of the angle adjusting member 43 is connected to the mounting plate 44 to drive the mounting plate 44 to rotate, thereby driving the feeding roller 41 to move to adjust the feeding angle.

[0169] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An efficiency-enhancing hot stamping device, characterized in that, include: The feeding mechanism is used for feeding materials. The enhancement mechanism is used to apply varnish to materials using a digital printhead and then cure it to achieve enhanced processing. Flatbed hot stamping mechanism, used for hot stamping materials on a flatbed surface; The feeding mechanism is used to unload processed materials. The flat plate hot stamping mechanism is one or more, and the flat plate hot stamping mechanism is located between the feeding mechanism and the efficiency-enhancing mechanism, or The flat plate hot stamping mechanism is one or more, and the flat plate hot stamping mechanism is located between the feeding mechanism and the efficiency-enhancing mechanism, or There are two or more flat hot stamping mechanisms, with at least one flat hot stamping mechanism located between the feeding mechanism and the efficiency-enhancing mechanism, and at least one flat hot stamping mechanism located between the unloading mechanism and the efficiency-enhancing mechanism. The feeding mechanism, efficiency enhancement mechanism, flat hot stamping mechanism, and unloading mechanism are combined to form a processing path.

2. The enhanced hot stamping device as described in claim 1, characterized in that, The feeding mechanism includes a feeding roller, a correction component, and a feed roller arranged in sequence.

3. The enhanced hot stamping device as described in claim 1, characterized in that, The flat hot stamping mechanism includes: Two or more server hosts; Flat hot stamping assembly, used to perform flat hot stamping operations; The servo host is connected to the flat hot foil stamping component and is used to drive the flat hot foil stamping component to perform the hot foil stamping action.

4. The enhanced hot stamping device as described in claim 3, characterized in that, The two or more server hosts include: The first driving component is used to drive the flat hot stamping component to perform the flat hot stamping action. The second driving component is used to drive the flat hot stamping component to perform the flat hot stamping action. The controller is electrically connected to the first drive component and the second drive component and is used to control the operation of the first drive component and the second drive component.

5. The enhanced hot stamping device as described in claim 3, characterized in that, The first driving component includes: a first encoder for detecting the rotational position of the first driving component; The second drive component includes: a second encoder for detecting the rotational position of the second drive component; The controller is configured to control the first drive component and the second drive component based on the feedback signals of the first encoder and the second encoder, so as to achieve synchronization of the first drive component and the second drive component. When the difference between the rotation position detected by the first encoder and the rotation position detected by the second encoder is greater than a preset safety value, the servo host is determined to be abnormal.

6. The enhanced hot stamping apparatus as described in claim 3, characterized in that, The flat hot stamping assembly includes a hot stamping machine frame, a hot stamping plate, and a pressure beam; The first drive assembly includes a first camshaft, and the first camshaft includes a first eccentric shaft and a first eccentric cam disposed on the first eccentric shaft; The second drive assembly includes a second camshaft, the second camshaft including a second eccentric shaft and a second eccentric cam disposed on the second eccentric shaft; The first camshaft and the second camshaft are connected to the hot stamping plate via the top pin assembly; the first eccentric cam and the second eccentric cam are used together to drive the hot stamping plate to perform up and down movement.

7. The enhanced hot stamping apparatus as described in claim 1, characterized in that, The flat hot stamping mechanism further includes a material storage and oscillating structure, which includes: The first drive axis is connected to the first servo motor; The second drive shaft is connected to the second servo motor; the second drive shaft is spaced apart from the first drive shaft and is used to jointly transport materials. The material handling controller is used to calculate and dynamically allocate drive torque to the first servo motor and the second servo motor, so that the first drive shaft and the second drive shaft can work together.

8. The enhanced hot stamping apparatus as described in claim 7, characterized in that, The storage swing structure also includes: A first conveyor belt is wound around the first end of the first drive shaft and the first end of the second drive shaft; A second conveyor belt is wound around the second end of the first drive shaft and the second end of the second drive shaft; The first conveyor belt is arranged parallel to the second conveyor belt.

9. The enhanced hot stamping apparatus as described in claim 8, characterized in that, The storage swing structure also includes: The first driven shaft is connected to the first driving shaft via the first conveyor belt and the second conveyor belt; The second driven shaft is connected to the second driving shaft via the first conveyor belt and the second conveyor belt; The first driven shaft is arranged parallel to the first driving shaft; the second driven shaft is arranged parallel to the second driving shaft.

10. The enhanced hot stamping apparatus as described in claim 1, characterized in that, The efficiency enhancement mechanism includes: Varnish assembly, storage and supply of varnish; Several digital printheads are connected to the varnish assembly and are used to spray varnish onto the material surface; The first curing component is used to pre-cure the varnish; The second curing component is used for the final curing of the pre-cured varnish.

11. An enhanced hot stamping process, characterized in that, The process includes: Loading materials; Flat hot stamping: applying hot stamping to materials on a flat surface. Enhanced processing involves spraying and curing a clear coat onto the material before and / or after hot stamping on a flat panel. Material cutting: cutting the processed materials into smaller pieces.

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