Image-text thermoprinting machine system for surface of digital plane and curved surface dual-purpose cylindrical product

Abstract

The invention relates to the technical field of hot stamping equipment, and discloses a digital plane and curved surface dual-purpose image-text hot stamping machine system for the surface of a cylindrical product, which comprises a modular structural design, a dual-mode positioning system and a digital control unit, the self-adaptive hot stamping head adopts a flexible stamping module driven by air pressure and hydraulic pressure, and the dual-mode positioning system comprises a plane mode and a curved surface mode. According to the hot stamping machine system, a self-adaptive hot stamping head adopts a pneumatic / hydraulic driven flexible stamping module, a pressure sensor array is arranged in the self-adaptive hot stamping head to adjust local pressure in real time, a dual-mode positioning system is adopted, a vacuum adsorption platform is adopted in a plane mode, a curved-surface mode programmable rotary clamp is adopted, 0-300 rpm stepless speed regulation is supported, a dual-mode hot stamping mechanism is initiated, and the self-adaptive hot stamping head is applied to the hot stamping machine system. The plane / curved surface mode is switched within 10 seconds through the quick-change interface, the hot stamping track is adjusted in real time based on workpiece three-dimensional scanning data, and the waste film recovery rate is increased to 95% or above through the environment-friendly hot stamping film recovery system.

Description

Technical Field

[0001] The present invention relates to the technical field of hot stamping equipment, and specifically to a graphic hot stamping machine system for the surface of digital flat and curved dual-use cylindrical products. Background Art

[0002] Due to the limitations of traditional hot stamping technology and the development of digital, automated, and intelligent technologies, a graphic hot stamping machine system for the surface of digital flat and curved dual-use cylindrical products has emerged. This system combines key technologies such as a drum die driven by a high-precision servo motor, an intelligent pressure compensation mechanism, a digital temperature control system, and advanced image recognition and processing software, achieving precise and efficient hot stamping of graphics and texts on the surfaces of flat and curved cylindrical products. The present invention belongs to the technical field of hot stamping equipment, and specifically relates to a digital control device that can be simultaneously applied to the graphic hot stamping on the surfaces of flat and curved cylindrical products, especially suitable for industries such as packaging, decoration, and handicrafts. The problems existing in the prior art are as follows: Traditional hot stamping machines need to replace different dies to process flat / curved workpieces, with low efficiency and high costs; Uneven pressure during curved surface hot stamping results in blurred and peeling graphics and texts (specific data such as a good product rate < 70% can be cited); Low digitalization level, unable to meet the production requirements of small-batch customization; Therefore, the present application now proposes a graphic hot stamping machine system for the surface of digital flat and curved dual-use cylindrical products Summary of the Invention

[0003] (1) Technical Problems to be Solved In view of the deficiencies of the prior art, the present invention provides a graphic hot stamping machine system for the surface of digital flat and curved dual-use cylindrical products, which has the advantages of improving the good product rate and production efficiency, and solves the problems of low efficiency, high cost, low digitalization level, and inability to meet the production requirements of small-batch customization of traditional hot stamping machines.

[0004] (2) Technical Solutions To achieve the above object, the present invention provides the following technical solutions: A graphic hot stamping machine system for the surface of digital flat and curved dual-use cylindrical products, including a modular structure design, a dual-mode positioning system, and a digital control unit. The modular structure design includes an adaptive hot stamping head, and the adaptive hot stamping head adopts a flexible stamping module driven by air pressure and hydraulic pressure, with a built-in pressure sensor array for real-time adjustment of local pressure. The dual-mode positioning system includes a flat mode and a curved surface mode. The digital control unit includes integrated closed-loop control of temperature, pressure, and speed. The specific steps are as follows: S1. Preparation stage: According to the shape, size, and hot stamping requirements of the cylindrical product, select a suitable graphic module and install it on the drum die. At the same time, set a suitable hot stamping temperature through the digital temperature control system; S2. Identification and positioning: Use image recognition and processing software to obtain the image of the cylindrical product surface, and automatically adjust the position, size, and angle of the graphic hot stamping. S3. Hot stamping stage: Start the hot stamping machine. The drum die driven by a high-precision servo motor moves synchronously with the surface of the cylindrical product. The intelligent pressure compensation mechanism adjusts the pressure applied to the surface of the cylindrical product according to the real-time monitored pressure data. S4. The digital temperature control system keeps the heating element working within the set temperature range and adjusts the hot stamping trajectory in real time based on the three-dimensional scan data of the workpiece. S5. Completion and inspection: After hot stamping, the operator checks the hot stamping effect to ensure that the graphics are clear, uniform, and meet the expectations. S6. Environmentally friendly hot stamping film recycling system; collect, separate, clean, and reuse the waste film.

[0005] Preferably, the modular structure design is one of the core features of the system. It allows the system to be flexibly configured and adjusted according to specific application requirements. This design not only improves the versatility and adaptability of the system but also facilitates maintenance and upgrade. The adaptive hot stamping head is a key component of the system. It adopts a flexible stamping module driven by air pressure and hydraulic pressure. This design enables the hot stamping head to adaptively adjust according to workpieces of different shapes and materials. Through the synergistic effect of air pressure and hydraulic pressure, the flexible stamping module can apply uniform and stable pressure to the surface of the workpiece. This driving method not only has a fast response speed but also can precisely control the pressure magnitude to ensure the stability and consistency of the hot stamping quality. In order to monitor and adjust the local pressure in real time, the adaptive hot stamping head is built-in with a pressure sensor array. These sensors can precisely sense the pressure distribution during the hot stamping process and perform real-time adjustment through the digital control unit to ensure the uniformity and consistency of the hot stamping quality.

[0006] Preferably, the dual-mode positioning system can simultaneously meet the hot stamping requirements of flat and curved workpieces; Flat mode: In the flat mode, the system ensures the precise alignment and stable movement of the hot stamping head with the surface of the workpiece through a high-precision servo motor and guide rail system. In this mode, the system can achieve high-precision flat hot stamping; Curved mode: In the curved mode, the system can precisely identify the curvature change of the workpiece surface and automatically adjust the position and angle of the hot stamping head through the built-in curved surface recognition algorithm and adaptive adjustment mechanism. In this mode, the system can achieve high-quality curved surface hot stamping.

[0007] Preferably, the digital control unit includes a closed-loop control system for temperature, pressure, and speed to precisely control the hot stamping process. Through the built-in temperature sensor and heating element in the closed-loop control, the digital control unit can monitor and adjust the temperature of the hot stamping head in real time. This closed-loop control ensures the stability of the temperature during the hot stamping process, thereby improving the reliability and consistency of the hot stamping quality. The pressure closed-loop control combines with the pressure sensor array built in the adaptive hot stamping head, and the digital control unit can monitor and adjust the local pressure in real time. This closed-loop control ensures the uniformity and stability of the pressure during the hot stamping process, thereby improving the uniformity and consistency of the hot stamping quality. The speed closed-loop control is achieved through a high-precision servo motor and encoder, and the digital control unit can monitor and adjust the moving speed of the hot stamping head in real time. This closed-loop control ensures the accuracy and stability of the speed during the hot stamping process, thereby improving the accuracy and consistency of the hot stamping quality.

[0008] Preferably, the real-time adjustment of the hot stamping trajectory based on the three-dimensional scanning data of the workpiece includes an intelligent compensation algorithm, and the formula of the intelligent compensation algorithm is: compensation amount Δ = α × radius of curvature + β × material thickness; Where the compensation amount Δ: represents the adjustment amount required for the hot stamping trajectory due to the shape and material characteristics of the workpiece; α: radius of curvature coefficient, indicating the influence degree of the radius of curvature on the compensation amount. The radius of curvature coefficient is determined through experiments or experience, and it may vary for different materials and hot stamping processes; Radius of curvature: a parameter describing the degree of curvature of the workpiece surface. The smaller the radius of curvature, the more severely the surface is curved. β: material thickness coefficient, indicating the influence degree of the material thickness on the compensation amount. The material thickness coefficient is determined through experiments or experience.

[0009] Material thickness: the actual thickness of the workpiece material, which has a direct impact on the heat transfer and pressure distribution during the hot stamping process.

[0010] Preferably, the environmentally friendly hot stamping film recycling system in step S6 includes an efficient collection technology, an intelligent separation technology, an efficient cleaning technology, and a reuse technology; among them: Efficient collection technology: The system adopts an advanced waste film collection device, which can automatically and continuously collect the waste hot stamping film from the hot stamping production line, avoiding the inconvenience and low efficiency caused by manual collection. The collection device is reasonably designed to ensure the integrity and cleanliness of the waste film, providing a good foundation for subsequent processing.

[0011] Intelligent separation technology: The system is equipped with intelligent separation equipment that can effectively separate waste membranes from impurities, pollutants, etc. according to their composition and characteristics. The separation process uses non-destructive technology to ensure the integrity and quality of the reusable portion of the waste membranes.

[0012] Efficient cleaning technology: The recycled waste membrane needs to be cleaned to remove pollutants such as oil and dust attached to its surface. The system uses efficient cleaning equipment and processes to ensure that the waste membrane is not damaged during the cleaning process while achieving a high cleanliness standard.

[0013] Reuse technology: The cleaned waste film can be reused in the hot stamping process to replace part of the new film material. The system also has the function of performance testing and quality control of the reused film material to ensure that the quality of the reused film meets the production requirements; Through the application of the above-mentioned key technologies, the system can achieve a significant increase in the waste film recovery rate to more than 95%, which not only reduces the generation of waste, but also reduces the demand for raw materials and improves resource utilization efficiency. The application of environmentally friendly hot stamping film recovery system helps to reduce environmental pollution and reduce the risk of ecological damage. By reducing the landfill and incineration of waste, the system can reduce greenhouse gas emissions and the release of harmful substances. The recycling of waste films reduces the company's raw material costs and improves economic benefits. The application of the system also helps to enhance the company's environmental image and enhance its market competitiveness.

[0014] Compared with the prior art, the present invention provides a digital graphic hot stamping system for the surface of a flat and curved dual-purpose cylindrical product, which has the following beneficial effects: 1. This digital graphic hot stamping machine system for the surface of cylindrical products with both plane and curved surfaces has an adaptive hot stamping head: a flexible stamping module driven by air pressure / hydraulic pressure, a built-in pressure sensor array to adjust the local pressure in real time, a dual-mode positioning system, a vacuum adsorption platform for the plane mode, and a programmable rotary fixture for the curved surface mode, which supports stepless speed regulation of 0-300rpm. The digital control unit integrates temperature control at 0-400℃ with an error value of ±1℃, a pressure of 0-50N / cm², and a speed closed-loop control. It is the first dual-mode hot stamping mechanism, which can switch between plane and curved surface modes within 10 seconds through a quick-change interface, and adjusts the hot stamping trajectory in real time based on the three-dimensional scanning data of the workpiece. The recycling rate of waste film is increased to more than 95% through an environmentally friendly hot stamping film recycling system. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] Embodiment 1: A digital graphic hot stamping machine system for a flat and curved dual-purpose cylindrical product surface includes a modular structure design, a dual-mode positioning system, and a digital control unit. The modular structure design includes an adaptive hot stamping head, and the adaptive hot stamping head adopts a flexible stamping module driven by air pressure and hydraulic pressure, and a built-in pressure sensor array adjusts the local pressure in real time. The dual-mode positioning system includes a flat mode and a curved surface mode, and the digital control unit includes an integrated temperature, pressure, and speed closed-loop control. The specific steps are as follows: S1, preparation stage: according to the shape, size and hot stamping requirements of the cylindrical product, select the appropriate graphic module and install it on the roller mold. At the same time, set the appropriate hot stamping temperature through the digital temperature control system; S2. Identification and positioning: Use image recognition and processing software to obtain the image of the cylindrical product surface and automatically adjust the position, size and angle of the hot stamping; S3, hot stamping stage: start the hot stamping machine, the roller die driven by the high-precision servo motor moves synchronously with the surface of the cylindrical product, and the intelligent pressure compensation mechanism adjusts the pressure applied to the surface of the cylindrical product according to the real-time monitored pressure data; S4, digital temperature control system keeps the heating element working within the set temperature range and adjusts the hot stamping trajectory in real time based on the workpiece 3D scanning data; S5. Completion and inspection: After the hot stamping is completed, the operator checks the hot stamping effect to ensure that the graphics are clear, uniform and in line with expectations; S6, environmentally friendly hot stamping film recycling system; collect, separate, clean and reuse waste films.

[0018] Embodiment 2: The modular structure design is one of the core features of this system. It allows the system to be flexibly configured and adjusted according to specific application requirements. This design not only improves the versatility and adaptability of the system but also facilitates maintenance and upgrade. The adaptive stamping head is a key component of this system. It adopts a flexible stamping module driven by air pressure and hydraulic pressure. This design enables the stamping head to make adaptive adjustments according to workpieces of different shapes and materials. Through the coordinated action of air pressure and hydraulic pressure, the flexible stamping module can apply uniform and stable pressure to the surface of the workpiece. This driving method not only has a fast response speed but also can precisely control the pressure magnitude to ensure the stability and consistency of the stamping quality. In order to monitor and adjust the local pressure in real time, the adaptive stamping head is built-in with a pressure sensor array. These sensors can accurately sense the pressure distribution during the stamping process and make real-time adjustments through the digital control unit to ensure the uniformity and consistency of the stamping quality.

[0019] Embodiment Three: The dual-mode positioning system can simultaneously meet the stamping requirements of flat and curved workpieces; Flat Mode: In the flat mode, the system ensures the precise alignment and stable movement of the stamping head with the surface of the workpiece through a high-precision servo motor and guide rail system. In this mode, the system can achieve high-precision flat stamping; Curved Mode: In the curved mode, the system can accurately identify the curvature change of the workpiece surface and automatically adjust the position and angle of the stamping head through the built-in curved surface recognition algorithm and adaptive adjustment mechanism. In this mode, the system can achieve high-quality curved surface stamping. The digital control unit includes a closed-loop control system for temperature, pressure, and speed to precisely control the stamping process. Through the built-in temperature sensor and heating element in the closed-loop control, the digital control unit can monitor and adjust the temperature of the stamping head in real time. This closed-loop control ensures the stability of the temperature during the stamping process, thereby improving the reliability and consistency of the stamping quality. Combining the pressure closed-loop control with the pressure sensor array built in the adaptive stamping head, the digital control unit can monitor and adjust the local pressure in real time. This closed-loop control ensures the uniformity and stability of the pressure during the stamping process, thereby improving the uniformity and consistency of the stamping quality. Through the high-precision servo motor and encoder in the speed closed-loop control, the digital control unit can monitor and adjust the moving speed of the stamping head in real time. This closed-loop control ensures the accuracy and stability of the speed during the stamping process, thereby improving the accuracy and consistency of the stamping quality.

[0020] Embodiment Four: The environmentally friendly hot stamping film recycling system includes high-efficiency collection technology, intelligent separation technology, high-efficiency cleaning technology, and reuse technology; among which: High-efficiency collection technology: The system adopts an advanced waste film collection device, which can automatically and continuously collect the waste hot stamping film from the hot stamping production line, avoiding the inconvenience and low efficiency caused by manual collection. The collection device is reasonably designed to ensure the integrity and cleanliness of the waste film, providing a good foundation for subsequent processing.

[0021] Intelligent separation technology: The system is equipped with intelligent separation equipment, which can effectively separate the waste film from impurities, pollutants, etc. according to the composition and characteristics of the waste film. The separation process uses non-destructive technology to ensure the integrity and quality of the reusable part in the waste film.

[0022] High-efficiency cleaning technology: The recycled waste film needs to be cleaned to remove pollutants such as oil stains and dust attached to its surface. The system adopts high-efficiency cleaning equipment and processes to ensure that the waste film is not damaged during the cleaning process and meets relatively high cleanliness standards at the same time.

[0023] Reuse technology: The waste film after cleaning can be reused in the hot stamping process to replace part of the new film material. The system also has the functions of performance detection and quality control of the reused film material to ensure that the quality of the reused film meets the production requirements; Through the application of the above key technologies, the system can significantly improve the waste film recovery rate, reaching more than 95%. This not only reduces the generation of waste, but also reduces the demand for raw materials, improves the resource utilization efficiency. The application of the environmentally friendly hot stamping film recovery system helps to reduce environmental pollution and the risk of ecological damage. By reducing the landfill and incineration treatment of waste, the system can reduce greenhouse gas emissions and the release of harmful substances. The recycling and utilization of waste film reduces the raw material cost of enterprises and improves economic benefits. The application of the system also helps to enhance the environmental image of enterprises and strengthen market competitiveness.

[0024] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made in these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A graphic hot stamping machine system for the surface of digital cylindrical products that can be used for both flat and curved surfaces, characterized in that: It includes a modular structure design, a dual-mode positioning system, and a digital control unit. The modular structure design includes an adaptive hot stamping head. The adaptive hot stamping head adopts a flexible stamping module driven by air pressure and hydraulic pressure, and a built-in pressure sensor array adjusts the local pressure in real time. The dual-mode positioning system includes a plane mode and a curved surface mode. The digital control unit includes integrated temperature, pressure, and speed closed-loop control. The specific steps are as follows: S1, preparation stage: according to the shape, size and hot stamping requirements of the cylindrical product, select the appropriate graphic module and install it on the roller mold. At the same time, set the appropriate hot stamping temperature through the digital temperature control system; S2. Identification and positioning: Use image recognition and processing software to obtain the image of the cylindrical product surface and automatically adjust the position, size and angle of the hot stamping; S3, hot stamping stage: start the hot stamping machine, the roller die driven by the high-precision servo motor moves synchronously with the surface of the cylindrical product, and the intelligent pressure compensation mechanism adjusts the pressure applied to the surface of the cylindrical product according to the real-time monitored pressure data; S4, digital temperature control system keeps the heating element working within the set temperature range and adjusts the hot stamping trajectory in real time based on the workpiece 3D scanning data; S5. Completion and inspection: After the hot stamping is completed, the operator checks the hot stamping effect to ensure that the graphics are clear, uniform and in line with expectations; S6, environmentally friendly hot stamping film recycling system; collect, separate, clean and reuse waste films.

2. The graphic hot stamping machine system for the surface of a digital planar and curved dual-purpose cylindrical product according to claim 1, characterized in that: The adaptive hot stamping head adopts a flexible stamping module driven by air pressure and hydraulic pressure. The hot stamping head can be adaptively adjusted according to workpieces of different shapes and materials. Through the synergistic effect of air pressure and hydraulic pressure, the flexible stamping module can achieve uniform and stable pressure application on the surface of the workpiece.

3. A graphic hot stamping machine system for the surface of a digital flat and curved dual-use cylindrical product according to claim 1, characterized in that: The dual-mode positioning system can simultaneously meet the hot stamping requirements of flat and curved workpieces; in the flat mode, the system achieves high-precision flat hot stamping; and in the curved mode, the system achieves high-quality curved hot stamping.

4. A graphic hot stamping machine system for the surface of a digital planar and curved dual-use cylindrical product according to claim 1, characterized in that: The digital control unit includes a closed-loop control system of temperature, pressure and speed to precisely control the hot stamping process. The closed-loop control uses built-in temperature sensors and heating elements, and the digital control unit can monitor and adjust the temperature of the hot stamping head in real time.

5. A graphic hot stamping machine system for the surface of a digital flat-curved dual-use cylindrical product according to claim 1, characterized in that: The real-time adjustment of the hot stamping track based on the three-dimensional scanning data of the workpiece includes an intelligent compensation algorithm, and the formula of the intelligent compensation algorithm is: compensation amount Δ=α×curvature radius+β×material thickness; The compensation amount Δ: represents the amount of adjustment required for the hot stamping track due to the shape and material properties of the workpiece; α: Curvature radius coefficient, which indicates the influence of curvature radius on compensation amount. Curvature radius coefficient is determined by experiment or experience, and may be different for different materials and hot stamping processes. Curvature radius: a parameter that describes the degree of curvature of the workpiece surface. The smaller the curvature radius, the more severe the curvature of the surface. β: Material thickness coefficient, which indicates the influence of material thickness on the compensation amount. The material thickness coefficient is determined through experiments or experience; Material thickness: The actual thickness of the workpiece material has a direct impact on the heat transfer and pressure distribution during the hot stamping process.

6. A graphic hot stamping machine system for the surface of a digital flat and curved dual-use cylindrical product according to claim 1, characterized in that: In step S6, the environmentally friendly hot stamping film recycling system includes efficient collection technology, intelligent separation technology, efficient cleaning technology, and reuse technology; among which: Efficient collection technology: The system adopts an advanced waste film collection device, which can automatically and continuously collect waste hot stamping films from the hot stamping production line; Intelligent separation technology: The system is equipped with intelligent separation equipment, which can effectively separate waste films from impurities and pollutants according to the composition and characteristics of the waste films. The separation process adopts non-destructive technology to ensure the integrity and quality of the reusable parts in the waste films; Efficient cleaning technology: The recycled waste films need to be cleaned to remove pollutants such as oil stains and dust attached to their surfaces. The system adopts efficient cleaning equipment and processes; Reuse technology: The waste films after cleaning treatment can be reused in the hot stamping process to replace part of the new film materials. The system has functions of performance detection and quality control for the reused film materials.

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