Gold stamping seat and wide gold stamping machine

Abstract

The invention discloses a gold stamping seat and a wide-width gold stamping machine. The gold stamping seat comprises more than two servo hosts and a gold stamping mechanism, the gold stamping assembly is used for executing gold stamping action; the servo host is connected with the gold stamping assembly and used for driving the gold stamping assembly to execute gold stamping actions. The servo host comprises a first driving assembly which comprises a first motor and a first detection unit, and the first detection unit is used for detecting the first position of the first driving assembly; the second driving assembly comprises a second motor and a second detection unit, and the second detection unit is used for detecting the second position of the second driving assembly; the controller is connected with the first motor, the second motor, the first detection unit and the second detection unit; the controller is used for comparing the first position with the second position in real time, and when the difference value between the first position and the second position is larger than a preset safety threshold value, it is judged that the double servo hosts are abnormal. The gold stamping mechanism is driven by the double servo hosts to execute the gold stamping action, and the overall driving power and precision of the gold stamping base are improved.

Description

Technical Field

[0001] This invention belongs to the technical field of hot stamping equipment, and specifically relates to a hot stamping stand and a wide hot stamping machine. Background Technology

[0002] Hot stamping is a key surface finishing technology that enhances the appearance and added value of products, and is widely used in high-end packaging fields such as cigarette packs, wine boxes, and luxury brand labels. In mass production applications, there are extremely high requirements for the stability, production efficiency, and stamping precision of hot stamping equipment. For example, it needs to be able to support high-speed and stable production for 24 consecutive hours at speeds exceeding 8000 times per hour, while ensuring that the stamped patterns have sharp and clear lines.

[0003] Currently, most medium-narrow web hot stamping equipment with a width of less than 550mm uses a single camshaft drive mechanism to achieve vertical movement and pressure application of the hot stamping plate. Current technology, driven by a single high-precision camshaft, can effectively control pressure distribution within a certain width. However, with the increasing market demand for large packaging and wide-width decorative materials, the development of equipment with larger hot stamping widths, such as those greater than or equal to 1150mm, has become a trend. However, the inherent limitations of the single camshaft drive scheme are also becoming apparent. When the hot stamping width increases significantly, the single camshaft, due to its large structural span, experiences significant stress deformation and thermal expansion under high-speed continuous operation. This results in significantly lower pressure at both ends of the hot stamping surface compared to the middle area. Pressure fluctuations can exceed 10%, and this uneven pressure directly causes unclear edge pattern transfer and deterioration in the overall hot stamping quality, making it impossible to guarantee consistent hot stamping quality across the entire width. It is precisely this bottleneck of insufficient mechanical rigidity and uncontrolled pressure uniformity caused by increased width that makes it difficult for existing technology to achieve high-quality, high-stability wide-width hot stamping, thus hindering the development and application of wide-width hot stamping equipment.

[0004] Therefore, in order to fundamentally overcome the rigidity limitations of a single camshaft under wide operating conditions and ensure stable and uniform pressure output on ultra-wide surfaces to meet the needs of the high-end wide hot stamping market, there is an urgent need for a new type of hot stamping stand and wide hot stamping machine. Summary of the Invention

[0005] To address the aforementioned problems, the primary objective of this invention is to provide a hot stamping station and a wide hot stamping machine to solve the technical problem of uneven pressure distribution in wide hot stamping applications using a single camshaft.

[0006] To achieve the above objectives, the technical solution of the present invention is as follows:

[0007] This invention provides a hot stamping base, comprising:

[0008] Two or more server hosts;

[0009] Hot stamping components are used to perform the hot stamping action;

[0010] The servo host is connected to the hot stamping component and is used to drive the hot stamping component to perform the hot stamping action.

[0011] The present invention provides a hot stamping base that uses a dual servo host to drive the hot stamping mechanism to perform hot stamping actions, thereby improving the overall driving power and precision of the hot stamping base and making the hot stamping action more stable and faster in response.

[0012] Furthermore, the first driving component includes: a first encoder for detecting the rotational position of the first driving component;

[0013] The second drive component includes: a second encoder for detecting the rotational position of the second drive component;

[0014] 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.

[0015] The absolute rotational position of the first drive component is directly detected by the first encoder, and the absolute rotational position of the second drive component is directly detected by the second encoder, without the need for a reference point, which improves the accuracy and reliability of position detection. The controller controls the first and second drive components based on the feedback signals of the first and second encoders, ensuring that the first and second drive components are strictly synchronized, reducing the phase error between them, thereby improving the consistency and quality of the hot stamping pattern, thus avoiding cumulative errors, and is particularly suitable for high-speed continuous operation scenarios.

[0016] Furthermore, the hot stamping mechanism includes a hot stamping unit, which includes a cold hot stamping component or a hot hot stamping component.

[0017] When a hot stamping mechanism is provided with a hot stamping unit, the hot stamping unit can be a cold hot stamping component, or it can be a hot hot stamping component.

[0018] Furthermore, the hot stamping mechanism includes two hot stamping units spaced apart, one of which includes a cold hot stamping component and the other includes a hot hot stamping component, or both of the hot stamping components are either cold hot stamping components or both of the hot hot stamping components.

[0019] When a hot stamping mechanism includes two hot stamping units spaced apart from each other, both hot stamping units can be designed as hot stamping components, or both hot stamping units can be designed as cold stamping components; or one hot stamping unit can be designed as a hot stamping component and the other hot stamping unit can be designed as a cold stamping component.

[0020] Therefore, the flexible configuration of the hot stamping unit allows the hot stamping station to adapt to different process requirements, such as materials like paper and plastic film, thus improving the equipment's versatility and application range. When a hot stamping mechanism is equipped with two hot stamping units, cold and hot stamping can be performed simultaneously, achieving multiple process combinations and improving production efficiency; or the same hot stamping components can be used to achieve dual-station operation, accelerating the production pace.

[0021] Furthermore, the hot stamping components include a hot stamping machine frame, a hot stamping plate, and a pressure beam;

[0022] 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;

[0023] The second drive assembly includes a second camshaft, which includes a second eccentric shaft and a second eccentric cam disposed on the second eccentric shaft; the second camshaft is spaced apart from the first camshaft.

[0024] The first camshaft and the second camshaft are connected to the hot stamping plate via a top pin assembly; the first eccentric cam and the second eccentric cam jointly drive the hot stamping plate to perform up-and-down movement. By comparing the first position of the first camshaft with the second position of the second camshaft in real time through a controller, synchronous monitoring of the dual servo hosts is achieved, improving the reliability and safety of the system. When the difference between the first and second positions exceeds a preset safety threshold, the system can promptly detect abnormalities in the dual servo hosts and take shutdown or alarm measures to prevent equipment failure or product defects and reduce production losses. The spaced design of the first and second camshafts can distribute the load, reduce the risk of single-point failure, and enhance system redundancy.

[0025] The top pin assembly, serving as the connector between the dual servo host and the hot stamping mechanism, provides buffering and elastic compensation, absorbing shocks and vibrations to ensure smooth hot stamping operations, reduce wear on the equipment, and extend its service life. The overall structure of this hot stamping base is simplified, reducing mechanical complexity and facilitating maintenance and control.

[0026] The hot stamping plate is driven vertically by the first and second eccentric cams, and the pressure beam is driven by the first and second eccentric shafts, achieving uniform pressure distribution. The first and second motors operate synchronously, ensuring that the pressure peaks act synchronously on the full width of the hot stamping area, avoiding local pressure insufficiency or overload, and improving the uniformity of the hot stamping effect. This is especially suitable for wide materials. Through mechanical structure optimization, energy loss is reduced and operation is more efficient.

[0027] Furthermore, the hot stamping area of ​​the hot stamping station has a full width of 1150mm or more, and the pressure fluctuation within the full width range is less than or equal to 4%.

[0028] The temperature rise of the first camshaft and the second camshaft during continuous operation is less than 60°C, and the phase shift caused by thermal expansion is less than 0.02 mm.

[0029] By limiting the hot stamping area of ​​the hot stamping station to a full width of ≥1150mm, the equipment can handle large packaging or decorative materials, expanding its application areas. 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 and second camshafts 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.

[0030] Furthermore, the production speed of the hot stamping station is greater than or equal to 8000 times / hour, and the sharpness error of the hot stamping lines is -0.1mm to 0.1mm.

[0031] The high production speed of the hot stamping base 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.

[0032] Furthermore, the hot stamping stand is used to process PET film or transfer electroplated aluminum with a thickness of less than 0.05 mm. The first motor has a phase fine-tuning accuracy of -0.03° to 0.03° for the first eccentric cam; the second motor has a phase fine-tuning accuracy of -0.03° to 0.03° for the second eccentric cam.

[0033] Hot stamping stations 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 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.

[0034] The present invention also provides a wide hot stamping machine, including a hot stamping station as described in any of the preceding claims, and further including: an unwinding mechanism, a correction mechanism, a swing roller mechanism, and a winding mechanism.

[0035] This invention provides a wide-width hot stamping machine in which an unwinding mechanism is located at the beginning of the machine to support large-diameter printing materials such as PET film or paper. This significantly improves the continuous operation efficiency of the equipment and provides a constant, low-tension material supply for subsequent processes, which is fundamental to ensuring hot stamping accuracy. It is also adaptable to rolls of different materials and widths. A deviation correction mechanism is located between the unwinding mechanism and the printing mechanism to detect and correct deviations in the width direction of the material during its movement in real time. This ensures that the material always enters the hot stamping station in the correct position. The deviation correction process is crucial for achieving high-precision hot stamping, especially avoiding errors in the sharpness of the stamped lines. It prevents hot stamping defects caused by deviation, eliminates the need for frequent manual adjustments, and improves the level of intelligent production. The oscillating roller mechanism serves as a tension control component. By floating, the oscillating roller absorbs tension fluctuations caused by instantaneous differences in unwinding and rewinding speeds or the periodic pressing and releasing actions of the hot stamping station. Especially when processing fragile materials such as PET film with a thickness less than 0.05mm, stable tension effectively prevents material stretching, deformation, or breakage, allowing the equipment to operate stably at production speeds up to 8000 times per hour. The rewinding mechanism, located at the end of the wide-width hot stamping machine, receives the finished material, neatly and tightly winding it into a roll for easy transport and subsequent processing.

[0036] Compared with the prior art, this application has the following advantages: The hot stamping base, driven by a dual servo host, performs the hot stamping action, improving the overall driving power and precision of the hot stamping base, making the hot stamping action more stable and responsive; the top pin assembly, as the connecting part between the dual servo host and the hot stamping mechanism, provides buffering and elastic compensation, absorbing impact and vibration, ensuring smooth hot stamping action, reducing wear on the equipment, and extending service life; the overall structure of the hot stamping base is simplified, reducing mechanical complexity and facilitating maintenance and control. Attached Figure Description

[0037] Figure 1 This is a three-dimensional schematic diagram of a hot stamping base provided by the present invention.

[0038] Figure 2 yes Figure 1 A partial structural diagram of the hot stamping base.

[0039] Figure 3 This is a schematic diagram of the structure of the first driving component.

[0040] Figure 4 This is a schematic diagram of the structure of the second drive component.

[0041] Figure 5This is a schematic diagram of a hot stamping mechanism with a hot stamping unit.

[0042] Figure 6 This is a schematic diagram of a hot stamping mechanism with two hot stamping units.

[0043] Figure 7 This is a three-dimensional schematic diagram of a wide hot stamping machine provided by the present invention.

[0044] In the diagram: 10. Dual servo main unit; 11. First drive assembly; 111. First camshaft; 1111. First eccentric shaft; 1112. First eccentric cam; 112. First motor; 113. First detection unit; 12. Second drive assembly; 121. Second camshaft; 1211. Second eccentric shaft; 1212. Second eccentric cam; 122. Second motor; 123. Second detection unit; 20. Hot stamping mechanism; 21. Frame; 22. Hot stamping plate; 23. Pressure beam; 30. Top pin assembly; 40. Swing roller mechanism; 50. Unwinding mechanism; 60. Web correction mechanism; 70. Rewinding mechanism. Detailed Implementation

[0045] 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.

[0046] It should be added that the current motors also have the following defects:

[0047] Currently, most hot stamping equipment utilizes a single high-precision cam and eccentric shaft composite mechanism as its core drive. A single cam controls the vertical movement trajectory of the hot stamping plate, while the eccentric shaft links with the pressure beam to achieve flat-pressing action. By precisely matching the eccentric shaft phase and cam profile, the pressure peak is ensured to act synchronously on the hot stamping surface within a certain width, keeping pressure fluctuations to a low level. For widths below 550mm, due to the relatively small force-bearing area, the rigidity of the mechanical structure is sufficient to support it, and the problem of edge pressure drop caused by cam shaft deformation under stress is not significant, meeting the process requirements of most application scenarios.

[0048] However, this single camshaft drive scheme has a fundamental technical bottleneck: performance deteriorates significantly as the hot stamping width increases. Specifically, when the hot stamping width approaches the critical point of 550mm, the single camshaft, under long-term high-speed operation, will deform due to stress, causing a significant decrease in edge pressure around the hot stamping surface of approximately 12% to 15%. This uneven pressure directly leads to a deterioration in the uniformity of hot stamping, making it impossible to guarantee the consistency of pattern transfer across the entire surface. This reflects the technical challenge that the larger the width, the more difficult it is to control the processing and overall rigidity of the equipment. This has resulted in a near-blank market for hot stamping machines with widths greater than 1150mm, with few manufacturers successfully developing products that meet the demands of high-stability mass production.

[0049] On the other hand, with the diversification of application materials, especially the increasing demand for precision machining of ultra-thin materials such as PET film with a thickness of less than 0.05 mm or transfer electroplated aluminum, higher requirements are placed on the dynamic control precision of hot stamping pressure. When processing such materials, even minute pressure fluctuations or phase deviations can easily cause tensile deformation, leading to increased scrap rates. While existing technologies possess some capability in phase fine-tuning, their control precision and stability are insufficient to simultaneously guarantee the high yield required for ultra-thin material processing under wide-width operating conditions. Therefore, to overcome the rigidity limitations of single camshaft structures in wide-width applications, a new hot stamping station and a wide-width hot stamping machine are urgently needed.

[0050] To achieve the above objectives, the technical solution of the present invention is as follows:

[0051] See Figures 1-7 The present invention provides a hot stamping base, comprising: a dual servo host 10; a hot stamping mechanism 20 for performing hot stamping actions; and a top pin assembly 30, wherein the dual servo host 10 is connected to the hot stamping mechanism 20 through the top pin assembly 30 and is used to drive the hot stamping mechanism 20 to perform hot stamping actions. The dual-servo host 10 includes: a first drive assembly 11, including a first camshaft 111, a first motor 112 disposed on the first camshaft 111, and a first detection unit 113, wherein the first detection unit 113 is used to detect a first position of the first camshaft 111; a second drive assembly 12, including a second camshaft 121, a second motor 122 disposed on the second camshaft 121, and a second detection unit 123, wherein the second detection unit 123 is used to detect a second position of the second camshaft 121; the second camshaft 121 is spaced apart from the first camshaft 111; a controller is connected to the first motor 112, the second motor 122, the first detection unit 113, and the second detection unit 123 respectively; the controller is used to compare the first position and the second position in real time, and when the difference between the first position and the second position is greater than a preset safety threshold, the dual-servo host 10 is determined to be abnormal.

[0052] This invention provides a hot stamping base that uses a dual servo host 10 to drive a hot stamping mechanism 20 to perform hot stamping actions, improving the overall driving power and precision of the hot stamping base, making the hot stamping action more stable and responsive. The top pin assembly 30, serving as the connection between the dual servo host 10 and the hot stamping mechanism 20, provides buffering and elastic compensation, absorbing impacts and vibrations to ensure smooth hot stamping, reducing wear on the equipment and extending its service life. The overall structure of the hot stamping base is simplified, reducing mechanical complexity and facilitating maintenance and control. By comparing the first position of the first camshaft 111 with the second position of the second camshaft 121 in real time with the controller, synchronous monitoring of the dual servo host 10 is achieved, improving the system's reliability and safety. When the difference between the first and second positions exceeds a preset safety threshold, the system can promptly detect abnormalities in the dual servo host 10 and take shutdown or alarm measures to prevent equipment failure or product defects, reducing production losses. The spaced design of the first camshaft 111 and the second camshaft 121 distributes the load, reduces the risk of single-point failure, and enhances system redundancy.

[0053] Furthermore, the first drive assembly 11 also includes: a first encoder for detecting the absolute rotational position of the first camshaft 111; the second drive assembly 12 includes: a second encoder for detecting the absolute rotational position of the second camshaft 121; the controller is configured to control the first motor 112 and the second motor 122 based on the feedback signals of the first encoder and the second encoder, so as to achieve synchronization of the first camshaft 111 and the second camshaft 121.

[0054] The absolute rotational position of the first camshaft 111 is directly detected by the first encoder, and the absolute rotational position of the second camshaft 121 is directly detected by the second encoder, without the need for a reference point, which improves the accuracy and reliability of position detection. The controller controls the first motor 112 and the second motor 122 based on the feedback signals of the first encoder and the second encoder, ensuring that the first camshaft 111 and the second camshaft 121 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 especially suitable for high-speed continuous operation scenarios.

[0055] Furthermore, the hot stamping mechanism 20 includes: a hot stamping unit 1, which includes a cold hot stamping component or a hot hot stamping component; or, the hot stamping mechanism 20 includes two hot stamping units 1 spaced apart, one of which includes a cold hot stamping component and the other includes a hot hot stamping component, or both of the hot stamping components are either cold hot stamping components or hot hot stamping components.

[0056] When the hot stamping mechanism 20 is provided with one hot stamping unit 1, the hot stamping unit 1 can be a cold hot stamping component, or the hot stamping unit 1 can be a hot hot stamping component. When the hot stamping mechanism 20 includes two hot stamping units 1 arranged at intervals, both hot stamping units 1 can be designed as hot hot stamping components, or both hot stamping units 1 can be designed as cold hot stamping components; or, one hot stamping unit 1 can be designed as a hot hot stamping component, and the other hot stamping unit 1 can be designed as a cold hot stamping component.

[0057] Therefore, the flexible configuration of the hot stamping unit 1 allows the hot stamping station to adapt to different process requirements, such as materials like paper and plastic film, thus improving the equipment's versatility and application range. When a hot stamping mechanism 20 is equipped with two hot stamping units 1, cold and hot stamping can be performed simultaneously, achieving multiple process combinations and improving production efficiency; or the same hot stamping components can be used to achieve dual-station operation, accelerating the production pace.

[0058] Furthermore, the hot stamping mechanism 20 includes a frame 21, a hot stamping plate 22, and a pressure beam 23; the first camshaft 111 includes a first eccentric shaft 1111 and a first eccentric cam 1112 disposed on the first eccentric shaft 1111; the second camshaft 121 includes a second eccentric shaft 1211 and a second eccentric cam 1212 disposed on the second eccentric shaft 1211; the first camshaft 111 and the second camshaft 121 are connected to the hot stamping plate 22 through a top pin assembly 30; the first eccentric cam 1112 and the second eccentric cam 1212 are used to jointly drive the hot stamping plate 22 to perform vertical movement; the first eccentric shaft 1111 and the second eccentric shaft 1211 are used to jointly drive the pressure beam 23 to perform a flattening action; the first motor 112 and the second motor 122 operate synchronously and are used to ensure that the pressure peak acts synchronously on the full width range of the hot stamping area.

[0059] The hot stamping plate 22 is driven vertically by the first eccentric cam 1112 and the second eccentric cam 1212, and the pressure beam 23 is driven by the first eccentric shaft 1111 and the second eccentric shaft 1211, thus achieving uniform pressure distribution. The first motor 112 and the second motor 122 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. This is especially suitable for wide materials. Thus, through mechanical structure optimization, energy loss is reduced and operation is more efficient.

[0060] Furthermore, the hot stamping area of ​​the hot stamping station has a full width of 1150mm or more, and the pressure fluctuation within the full width range is less than or equal to 4%.

[0061] By limiting the total width of the hot stamping area to at least 1150mm, the equipment can handle large packaging or decorative materials, expanding its application areas. By limiting pressure fluctuation to at least 4%, stable hot stamping pressure and consistent pattern transfer are ensured, avoiding issues like incomplete printing or smearing. Compared to the approximately 8% pressure fluctuation across the entire area with a single-axis solution using either the first camshaft 111 or the second camshaft 121, the dual-axis segmented pressure application with each camshaft 111 and 121 controlling a width of 575mm results in a total pressure fluctuation of less than or equal to 4%, completely eliminating edge defects.

[0062] Furthermore, compared to the approximately 20,000-hour lifespan of a single axis, the dual-axis load splitting using the first camshaft 111 and the second camshaft 121 reduces bearing load by 50% and extends bearing life to over 30,000 hours, effectively doubling bearing life. A damaged single axis can be replaced independently. While single-axis maintenance and replacement requires 20 hours, dual-axis maintenance and replacement requires only 8 hours, reducing downtime by 60% and thus optimizing maintenance costs. The mechanical efficiency of a single axis is approximately 90%, while the mechanical efficiency of the dual-servo collaborative drive exceeds 93%, resulting in a 15% reduction in energy consumption per ton of output, thereby improving energy efficiency.

[0063] Furthermore, the temperature rise of the first camshaft 111 and the second camshaft 121 during continuous operation is less than 60°C, and the phase shift caused by thermal expansion is less than 0.02 mm.

[0064] By limiting the temperature rise of the first camshaft 111 and the second camshaft 121 to less than 60℃ during continuous operation and controlling the phase shift of thermal expansion to less than 0.02mm, the accuracy and stability of the equipment under long-term high-speed operation are ensured, and failures caused by thermal deformation are reduced. Compared with a single-axis thermal expansion shift greater than or equal to 0.05mm and a single-axis body temperature rise greater than 80℃, by distributing heat to the first camshaft 111 and the second camshaft 121, the temperature rise of the dual-axis body is less than 60℃, and the dual-axis thermal expansion phase shift is controlled within 0.02mm. By limiting the dual-axis thermal expansion phase shift of the first camshaft 111 and the second camshaft 121 to less than or equal to 0.02mm, the thermal stability of the equipment under long-term continuous 24-hour high-intensity production is ensured, avoiding accuracy degradation or precise suppression of thermal deformation caused by temperature rise.

[0065] Furthermore, the hot stamping station's production speed is greater than or equal to 8000 times / hour, with a hot stamping line sharpness error of -0.1mm to 0.1mm. Compared to the single-axis limit of 5000 times, the dual-axis centrifugal force balance achieved through the first camshaft 111 and the second camshaft 121 (i.e., the centrifugal forces cancel each other out) allows for high-speed operation exceeding 6000 times / hour, achieving a breakthrough in speed limits and increasing production capacity by 20%. The high production speed of the hot stamping station significantly improves efficiency and meets the needs of mass production. The small hot stamping line sharpness error ensures clear and fine edges of the pattern, making it suitable for high-precision hot stamping such as anti-counterfeiting labels or fine graphics, thus improving product quality.

[0066] Furthermore, the hot stamping station is used to process PET film with a thickness of less than 0.05mm or to transfer electroplated aluminum. The phase fine adjustment accuracy of the first motor 112 to the first eccentric cam 1112 is -0.03°~0.03°; the phase fine adjustment accuracy of the second motor 122 to the second eccentric cam 1212 is -0.03°~0.03°.

[0067] Hot stamping stations 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 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.

[0068] The present invention also provides a wide hot stamping machine, including the hot stamping base as described in any of the above, and further including: an unwinding mechanism 50, a correction mechanism 60, a swing roller mechanism 40, and a winding mechanism 70.

[0069] In the wide-width hot stamping machine provided by the present invention, the unwinding mechanism 50 is set at the starting end of the entire wide-width hot stamping machine to support large-diameter printing materials such as PET film or paper, which greatly improves the continuous operation efficiency of the equipment and provides a constant, low-tension material supply for subsequent processes. This is the basis for ensuring the accuracy of hot stamping and can be adapted to rolls of different materials and widths.

[0070] The correction mechanism 60 is located between the unwinding mechanism 50 and the hot stamping mechanism 20. It is used to detect and correct the deviation in the width direction of the material in real time, ensuring that the material always enters the hot stamping station in the correct position. The correction process is the key to achieving high-precision hot stamping, especially avoiding errors in the sharpness of the hot stamping lines. It prevents hot stamping waste caused by deviation, eliminates the need for frequent manual adjustments, and improves the level of intelligent production.

[0071] The swing roller mechanism 40 serves as a tension control component. By floating the swing roller, it absorbs tension fluctuations caused by instantaneous differences in unwinding and rewinding speeds or the periodic pressing or releasing actions of the hot stamping station. Especially when processing fragile materials such as PET film with a thickness less than 0.05mm, stable tension effectively prevents material stretching, deformation, or breakage, allowing the equipment to operate stably at production speeds up to 8000 times / hour. Preferably, the swing roller mechanism 40 includes a floating roller 41, a swing arm 42, a detection device, and a cylinder 43. The floating roller 41 is a roller that can swing freely up and down or left and right, and it is used to directly contact the material. The swing arm 42 connects the floating roller 41 and the rotating shaft. The detection device is a potentiometer or encoder used to detect the swing angle or position of the swing roller in real time, which directly reflects the real-time tension magnitude. The cylinder 43 provides an initial and stable tension reference for the system.

[0072] Furthermore, this invention also provides a wide-format hot stamping machine, comprising: a printing mechanism for completing printing and hot stamping, achieving high-efficiency decorative processing; and a precise mechanical synchronization and control system to ensure accurate positioning of the printed pattern and the subsequent hot stamping pattern. Different process combinations can be selected, such as printing before hot stamping or hot stamping before printing, depending on product requirements. Depending on the process sequence, the printing mechanism can be positioned before the hot stamping station to achieve a print-then-stamping process, or it can be positioned after the hot stamping station to achieve a hot stamping-then-printing process. Preferably, the printing mechanism is equipped with an array of inkjet printheads for digital printing on wide-format materials, eliminating the need for plate making and offering flexibility and efficiency. The printing mechanism also includes a curing structure, such as a UV-LED lamp, for instant curing of UV ink.

[0073] In the wide hot stamping machine provided by the present invention, the winding mechanism 70 is located at the end of the entire wide hot stamping machine and is used to receive the finished material, thereby neatly and tightly winding the finished material into a roll, which is convenient for transportation and subsequent processing.

[0074] In this embodiment, the unwinding mechanism 50 is used to unwind the printing material; the rewinding mechanism 70 is used to rewind the printing material; and the swing roller mechanism 40 is used to automatically adjust the tension of materials such as film or paper to ensure that the material is transported smoothly during the hot stamping process and to prevent wrinkling, deviation or stretching deformation. The swing roller mechanism 40 can improve the accuracy of the hot stamping position and reduce the scrap rate, and is particularly suitable for processing wide or thin and brittle materials.

[0075] Therefore, the hot stamping stand and wide hot stamping machine provided by the present invention can achieve stable and uniform pressure output across the entire width, while possessing extremely high dynamic control precision, to meet the dual needs of high-end mass production and precision hot stamping of ultra-thin materials.

[0076] 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. A hot stamping base, characterized in that, include: Two or more server hosts; Hot stamping components are used to perform the hot stamping action; The servo host is connected to the hot stamping component and is used to drive the hot stamping component to perform the hot stamping action; The servo host includes: a first drive component, including a first motor and a first detection unit, the first detection unit being used to detect a first position of the first drive component; and a second drive component, including a second motor and a second detection unit, the second detection unit being used to detect a second position of the second drive component. The controller is connected to the first motor, the second motor, the first detection unit, and the second detection unit 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 the preset safety threshold, the dual servo host is judged to be abnormal.

2. A hot stamping base as described in claim 1, 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.

3. A hot stamping base as described in claim 2, characterized in that, The hot stamping mechanism includes a hot stamping unit, which includes a cold hot stamping component or a hot hot stamping component.

4. A hot stamping base as described in claim 2, characterized in that, The hot stamping mechanism includes two hot stamping units spaced apart, one of which includes a cold hot stamping component and the other includes a hot hot stamping component; or, both hot stamping components are either cold hot stamping components or hot hot stamping components.

5. A hot stamping base as described in claim 2, characterized in that, Hot stamping components include 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 a 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.

6. A hot stamping base as described in claim 1, characterized in that, The hot stamping plate 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%.

7. A hot stamping base as described in claim 5, characterized in that, The temperature rise of the first camshaft and the second camshaft during continuous operation is less than 60°C, and the phase shift caused by thermal expansion is less than 0.02 mm.

8. A hot stamping base as described in claim 1, characterized in that, The hot stamping station has a production speed of ≥8000 times / hour and a hot stamping line sharpness error of -0.1mm~0.1mm.

9. A hot stamping base as described in claim 5, characterized in that, The hot stamping stand is used to process PET film or transfer electroplated aluminum with a thickness of less than 0.05 mm. The first motor has a phase fine adjustment accuracy of -0.03° to 0.03° for the first eccentric cam; the second motor has a phase fine adjustment accuracy of -0.03° to 0.03° for the second eccentric cam.

10. A wide-width hot stamping machine, characterized in that, The hot stamping base as described in any one of claims 1 to 9 further includes: an unwinding mechanism, a web guiding mechanism, a swing roller mechanism, and a winding mechanism.

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