A humidifying device for a screen printing machine based on cigarette case production
Patent Information
- Application Number
- CN202610802419.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-06-04
- Publication Date
- 2026-10-20
AI Technical Summary
[0007]本发明的目的在于提供一种基于烟盒生产的丝网印刷机加湿装置，以解决上述背景技术提出的加湿效率低、响应慢，难以在印刷机关键工位（如网版、印刷平台附近）形成稳定、均匀的局部高湿度微环境，且过度加湿可能影响车间其他设备或工序的问题
[0015]与现有技术相比，本发明的有益效果是：该一种基于烟盒生产的丝网印刷机加湿装置，通过转动电机带动转动管和加湿单元转动，以对准印刷网板与承印材料接触区域，同时启动低噪音风扇，能够将水雾颗粒均匀的吹到印刷网板区域，直接针对丝网印刷的核心区域进行加湿，创造稳定的最佳湿度微环境，效率高、响应速度快，避免了整体环境加湿的滞后与浪费，在升降气缸的作用下，能够实现升降支架、印刷刮板和涂料刷交替上下移动，从而实现烟盒的印刷，通过湿度传感与闭环控制，实现了加湿量的自动精准调节，减少了对操作人员经验的依赖，保证了不同批次生产质量的稳定性，其具体内容如下：
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Abstract
Description
Technical Field
[0001] This invention relates to the field of cigarette box packaging printing equipment technology, specifically a humidification device for a screen printing machine based on cigarette box production. Background Technology
[0002] In the production of cigarette packaging, screen printing is a crucial step, used to print brand logos, warnings, decorative patterns, etc. The quality of screen printing is significantly affected by environmental humidity. When the working environment is too dry, the following problems may occur: 1. Changes in ink properties: If the solvent or water in the ink evaporates too quickly, the ink viscosity will increase and the fluidity will decrease, affecting its smooth passage through the screen and easily causing broken lines, jagged edges, or screen blockage in the printed pattern.
[0003] 2. Deformation of printing substrate (cigarette box cardboard): Paper cigarette boxes are prone to slight curling or shrinkage due to water loss in dry environments, affecting their positioning accuracy at the printing station and resulting in misregistration.
[0004] 3. Static electricity generation: Dry environments are prone to static electricity, which attracts dust from the air onto the screen or substrate, causing printing defects; at the same time, static electricity may also cause thin paper substrates to adhere to the equipment, affecting normal paper feeding.
[0005] Currently, many screen printing workshops use central humidification systems or mobile humidifiers to regulate the overall humidity. However, these methods have shortcomings: low humidification efficiency, slow response, difficulty in creating a stable and uniform local high-humidity microenvironment at key workstations of the printing press (such as near the screen and printing platform), and excessive humidification may affect other equipment or processes in the workshop.
[0006] Therefore, a humidification device for a screen printing machine based on cigarette box production is proposed to solve the problems mentioned above. Summary of the Invention
[0007] The purpose of this invention is to provide a humidification device for a screen printing machine based on cigarette box production, in order to solve the problems mentioned in the background art, such as low humidification efficiency, slow response, difficulty in forming a stable and uniform local high humidity microenvironment at key work stations of the printing machine (such as near the screen and printing platform), and the possibility that excessive humidification may affect other equipment or processes in the workshop.
[0008] To achieve the above objectives, the present invention provides the following technical solution: a humidification device for a screen printing machine based on cigarette box production, comprising a uniform humidification mechanism and a printing worktable installed at the bottom of the uniform humidification mechanism; The top of the uniform humidification mechanism is provided with a reciprocating printing mechanism, and the top of the reciprocating printing mechanism is provided with a printing top plate. Also includes: The uniform humidification mechanism includes a conical protective cover, with fixed blocks symmetrically installed inside the conical protective cover, and a rotating motor fixedly installed on the outside of one side of the fixed block; The output end of the rotating motor is fixedly connected to a rotating tube, and a humidifying unit is installed on the outside of the rotating tube. A connecting water pipe is fixedly installed on the side of the rotating tube away from the rotating motor, and the connecting water pipe is rotatably connected to the fixed block.
[0009] Preferably, the bottom of the printing worktable is fixedly equipped with support legs, the top of the printing worktable is fixedly equipped with support blocks, the top of the support blocks is fixedly equipped with a printing screen, and the top of the printing screen is symmetrically equipped with humidity sensing units.
[0010] Preferably, mounting brackets are fixedly installed on both sides of the top of the printing workbench, the conical protective cover is fixedly connected to the mounting brackets, and an air supply and guiding unit is fixedly installed at the end of the mounting brackets. The air supply and guiding unit is fixedly installed inside the conical protective cover.
[0011] Preferably, a dustproof net is fixedly installed on one side of the air supply and guide unit, a fan bracket is fixedly installed at the center of the air supply and guide unit, and a low-noise fan is fixedly installed at the center of the fan bracket.
[0012] Preferably, the reciprocating printing mechanism includes a reciprocating support, which is fixedly installed on the top of the printing worktable. A reciprocating motor is fixedly installed on one side of the reciprocating support, and a reciprocating lead screw is fixedly connected to the output end of the reciprocating motor. A lead screw sleeve is provided on the outer side of the reciprocating lead screw.
[0013] Preferably, a first limiting plate is fixedly installed on the outer side of the lead screw sleeve, and translation sliding rods are symmetrically installed on the inner side of the reciprocating bracket. Translation sliding sleeves are slidably connected to the outer sides of the two translation sliding rods. A second limiting plate is fixedly installed on the outer side of the translation sliding sleeves, and an installation bracket is fixedly installed on the outer side of the first limiting plate and the second limiting plate.
[0014] Preferably, the printing top plate is fixedly installed on the outside of the mounting bracket, and lifting cylinders are symmetrically installed on the bottom of the printing top plate. Lifting brackets are fixedly installed on the bottom of each of the two lifting cylinders. A printing scraper and a paint brush are fixedly installed on the bottom of each of the two lifting brackets, and lifting limit rods are symmetrically installed on the top of each of the two lifting brackets. The lifting limit rods are slidably connected to the printing top plate.
[0015] Compared with existing technologies, the beneficial effects of this invention are as follows: This humidification device for a screen printing machine based on cigarette box production uses a rotating motor to drive the rotating tube and humidification unit to rotate, aligning them with the contact area between the printing screen and the substrate. Simultaneously, a low-noise fan is activated, evenly blowing water mist particles onto the printing screen area, directly humidifying the core area of screen printing, creating a stable and optimal humidity microenvironment. It is highly efficient and has a fast response speed, avoiding the lag and waste of overall environmental humidification. Under the action of a lifting cylinder, the lifting support, printing squeegee, and paint brush can move alternately up and down, thereby achieving cigarette box printing. Through humidity sensing and closed-loop control, automatic and precise adjustment of the humidification amount is achieved, reducing reliance on operator experience and ensuring the stability of production quality across different batches. The specific details are as follows: 1. By setting up a uniform humidification mechanism, a water pump can be connected via a water pipe, and humidification can be achieved through a humidification unit. The humidification unit preferably uses an ultrasonic atomization humidification module or a high-pressure micro-mist humidification module. Its core function is to generate micron-sized water mist particles. A rotating motor drives the rotating tube and humidification unit to rotate, aligning them with the contact area between the printing screen and the substrate. Simultaneously, a low-noise fan is activated, which can evenly blow the water mist particles onto the printing screen area, directly humidifying the core area of screen printing, creating a stable and optimal humidity microenvironment. This method is highly efficient and has a fast response time, avoiding the lag and waste of overall environmental humidification. The humidity sensing unit includes at least one high-precision digital humidity sensor, which is placed in the target humidification area (such as below the screen or above the printing platform) to monitor the humidity value of this local area in real time and transmit the data signal to the control unit. The control unit is a microprocessor controller (such as a PLC or dedicated control circuit), whose input is connected to the humidity sensing unit and whose output is connected to the humidification unit. The controller internally presets optimal humidity range parameters corresponding to different cigarette box paper types and ink types. The controller uses PID and other control algorithms to dynamically adjust the atomization output power (or atomization amount) and start / stop of the humidification unit based on the deviation between the real-time monitored humidity value and the set target value. By stabilizing the local humidity, it effectively maintains the optimal fluidity of the ink, reduces printing defects caused by drying (such as plate clogging and stringing), and suppresses the deformation of the printing substrate and the generation of static electricity, which significantly improves the clarity of the pattern, the sharpness of the edge and the registration accuracy of the cigarette box printing. 2. By setting up a reciprocating printing mechanism, not only can the reciprocating motor drive the reciprocating screw to rotate, causing the screw sleeve to drive the first limit plate, mounting bracket, and printing top plate to move back and forth, but under the action of the lifting cylinder, the lifting bracket, printing squeegee, and paint brush can also move up and down alternately to achieve the printing of cigarette boxes. Through humidity sensing and closed-loop control, the humidification amount can be automatically and accurately adjusted, reducing the reliance on operator experience and ensuring the stability of production quality for different batches. The device has a compact structure and is easy to integrate into existing or new screen printing machines. The control parameters are adjustable and can adapt to the production needs of different specifications of cigarette box paper and different seasonal climate conditions. Compared with large-area environmental humidification, local humidification significantly reduces water consumption and energy consumption, making it more energy-efficient and environmentally friendly. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a three-dimensional structural diagram of the uniform humidification mechanism in this invention; Figure 3 This is a three-dimensional structural diagram of the conical protective cover in this invention; Figure 4 This is a three-dimensional cross-sectional structural diagram of the air supply and guiding unit in this invention; Figure 5 This is a three-dimensional structural diagram of the reciprocating printing mechanism in this invention; Figure 6 This is a three-dimensional structural diagram of the first limiting plate and the second limiting plate in this invention.
[0017] In the diagram: 1. Uniform humidification mechanism; 101. Printing workbench; 102. Support leg; 103. Support block; 104. Printing screen; 105. Humidity sensing unit; 106. Mounting bracket; 107. Conical protective cover; 108. Fixing block; 109. Rotating motor; 110. Rotating tube; 111. Humidification unit; 112. Connecting water pipe; 113. Air supply and guide unit; 114. Dustproof net; 115. Fan bracket; 116. Low... 1. Noise-generating fan; 2. Reciprocating printing mechanism; 201. Reciprocating bracket; 202. Reciprocating motor; 203. Reciprocating lead screw; 204. Lead screw sleeve; 205. First limit plate; 206. Translation sliding rod; 207. Translation sliding sleeve; 208. Second limit plate; 209. Mounting bracket; 210. Printing top plate; 211. Lifting cylinder; 212. Lifting bracket; 213. Printing scraper; 214. Paint brush; 215. Lifting limit rod. Detailed Implementation
[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0019] Please see Figures 1-6This invention provides a technical solution: a humidification device for a screen printing machine based on cigarette box production, comprising a uniform humidification mechanism 1 and a printing worktable 101 installed at the bottom of the uniform humidification mechanism 1. A reciprocating printing mechanism 2 is provided on the top of the uniform humidification mechanism 1, and a printing top plate 210 is provided on the top of the reciprocating printing mechanism 2. The uniform humidification mechanism 1 includes a conical protective cover 107, with fixed blocks 108 symmetrically installed inside the conical protective cover 107. A rotating motor 109 is fixedly installed on the outer side of one of the fixed blocks 108. The output end of the rotating motor 109 is fixedly connected to a rotating tube 110, and a humidification unit 111 is installed on the outer side of the rotating tube 110. A connecting water pipe 112 is fixedly installed on the side of pipe 110 away from the rotating motor 109. The connecting water pipe 112 is rotatably connected to the fixing block 108. Support legs 102 are fixedly installed around the bottom of the printing workbench 101. Support blocks 103 are fixedly installed around the top of the printing workbench 101. A printing screen 104 is fixedly installed on the top of the support blocks 103. Humidity sensing units 105 are symmetrically installed on the top of the printing screen 104. Mounting brackets 106 are fixedly installed on both sides of the top of the printing workbench 101. A conical protective cover 107 is fixedly connected to the mounting bracket 106. An air supply and guide unit 113 is fixedly installed at the end of the mounting bracket 106. 3. A dustproof net 114 is fixedly installed inside the conical protective cover 107. A fan bracket 115 is fixedly installed on one side of the air supply and guide unit 113. A low-noise fan 116 is fixedly installed at the center of the air supply and guide unit 113. A water pump is connected via a water pipe 112, and humidification is achieved through a humidification unit 111. The humidification unit 111 preferably adopts an ultrasonic atomization humidification module or a high-pressure micro-mist humidification module. Its core function is to generate micron-sized water mist particles. The rotating tube 110 and the humidification unit 111 are rotated by the rotating motor 109 to align with the contact area between the printing screen 104 and the printing substrate. Simultaneously, the low-noise fan 116 is activated, which can evenly blow water mist particles onto the printing screen 104 area, directly humidifying the core area of screen printing and creating a stable, optimal humidity microenvironment. This method is highly efficient and has a fast response time, avoiding the lag and waste of overall environmental humidification. The humidity sensing unit 105 includes at least one high-precision digital humidity sensor, which is arranged in the humidification target area, such as below the screen or above the printing platform, to monitor the humidity value of this local area in real time and transmit the data signal to the control unit. The control unit is a microprocessor controller, such as a PLC or a dedicated control circuit, with its input connected to the humidity sensing unit 105 and its output connected to the humidification unit 111. The controller has preset optimal humidity range parameters corresponding to different cigarette box paper types and ink types.Based on the deviation between the real-time monitored humidity value and the set target value, the controller uses PID and other control algorithms to dynamically adjust the atomization output power or atomization amount and start / stop of the humidification unit 111. By stabilizing the local humidity, it effectively maintains the optimal fluidity of the ink, reduces printing defects caused by drying, such as plate clogging and stringing, and suppresses the deformation of the printing substrate and the generation of static electricity, significantly improving the clarity of the pattern, the sharpness of the edges, and the registration accuracy of the cigarette box printing.
[0020] The reciprocating printing mechanism 2 includes a reciprocating support 201, which is fixedly installed on the top of the printing worktable 101. A reciprocating motor 202 is fixedly installed on one side of the reciprocating support 201. A reciprocating lead screw 203 is fixedly connected to the output end of the reciprocating motor 202. A lead screw sleeve 204 is provided on the outside of the reciprocating lead screw 203. A first limiting plate 205 is fixedly installed on the outside of the lead screw sleeve 204. Translation sliding rods 206 are symmetrically installed vertically inside the reciprocating support 201. Translation sliding sleeves 207 are slidably connected to the outside of both translation sliding rods 206. A second limiting plate 208 is fixedly installed on the outside of the translation sliding sleeves 207. A mounting bracket 209 is fixedly installed on the outside of the first limiting plate 205 and the second limiting plate 208. A printing top plate 210 is fixedly installed on the outside of the mounting bracket 209. Lifting cylinders 211 are symmetrically installed at the bottom of the printing top plate 210. The bottom of each lifting cylinder 211 is fixedly equipped with a lifting bracket 212. The bottom of each lifting bracket 212 is fixedly equipped with a printing squeegee 213 and a paint brush 214. The top of each lifting bracket 212 is symmetrically equipped with a lifting limit rod 215. The lifting limit rod 215 is slidably connected to the printing top plate 210. The reciprocating motor 202 drives the reciprocating screw 203 to rotate, so that the screw sleeve 204 drives the first limit plate 205, the mounting bracket 209 and the printing top plate 210 to move back and forth. Under the action of the lifting cylinder 211, the lifting bracket 212, the printing squeegee 213 and the paint brush 214 can move up and down alternately, thereby realizing the printing of cigarette boxes. Through humidity sensing and closed-loop control, the humidification amount is automatically and accurately adjusted, reducing the dependence on the operator's experience and ensuring the stability of the production quality of different batches. The device has a compact structure and is easy to integrate into existing or new screen printing machines. The control parameters are adjustable, which can adapt to the production needs of different specifications of cigarette box paper and different seasonal climate conditions. Compared with large-area environmental humidification, local humidification significantly reduces water consumption and energy consumption, making it more energy-efficient and environmentally friendly. The screw rod and sliding rod are equipped with screw rod protective covers on the outside for dust prevention.
[0021] Working principle: Before using this humidification device for a screen printing machine based on cigarette box production, it is necessary to check the overall condition of the device to ensure it can operate normally. Figure 1 - Figure 6As shown, firstly, the cigarette box to be printed is placed at the bottom of the printing screen 104. A water pump is connected via a water pipe 112, and humidification is achieved through a humidification unit 111. The humidification unit 111 preferably uses an ultrasonic atomization humidification module or a high-pressure micro-mist humidification module. Its core function is to generate micron-sized water mist particles. A rotating motor 109 drives the rotating tube 110 and the humidification unit 111 to rotate, aligning them with the contact area between the printing screen 104 and the substrate. Simultaneously, a low-noise fan 116 is activated, which can evenly blow the water mist particles onto the printing screen 104 area. Humidification is applied to the core area of screen printing to create a stable, optimal humidity microenvironment. This method is highly efficient and has a fast response time, avoiding the lag and waste associated with overall environmental humidification. The humidity sensing unit 105 includes at least one high-precision digital humidity sensor, which is positioned in the target humidification area, such as below the screen or above the printing platform. This sensor monitors the humidity value of the local area in real time and transmits the data signal to the control unit. The control unit is a microprocessor controller, such as a PLC or a dedicated control circuit. Its input is connected to the humidity sensing unit 105, and its output is connected to the humidification unit 111. The controller has preset optimal humidity range parameters corresponding to different cigarette box paper types and ink types. The controller, based on the deviation between the real-time monitored humidity value and the set target value, uses PID and other control algorithms to dynamically adjust the atomization output power or atomization amount and start / stop of the humidification unit 111. By stabilizing local humidity, it effectively maintains the optimal fluidity of the ink, reduces printing defects caused by drying, such as plate clogging and stringing, and suppresses substrate deformation and static electricity generation. This significantly improves the clarity, edge sharpness, and registration accuracy of the printed cigarette box pattern. Secondly, the reciprocating motor 202 drives the reciprocating screw 203 to rotate, causing the screw sleeve 204 to drive the first limit plate 205, the mounting bracket 209, and the printing top plate 210 to move back and forth. Under the action of the lifting cylinder 211, the lifting bracket 212, the printing squeegee 213, and the paint brush 214 can move up and down alternately, thereby realizing the printing of the cigarette box. Through humidity sensing and closed-loop control, the automatic and precise adjustment of the humidification amount is achieved, reducing the dependence on operator experience and ensuring the stability of production quality for different batches. The device has a compact structure and is easy to integrate into existing or new screen printing machines. The control parameters are adjustable, which can adapt to the production needs of different specifications of cigarette box paper and different seasonal climate conditions. Compared with large-area environmental humidification, local humidification significantly reduces water consumption and energy consumption, making it more energy-efficient and environmentally friendly.
[0022] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A humidification device for a screen printing machine based on cigarette box production, comprising a uniform humidification mechanism (1) and a printing worktable (101) installed at the bottom of the uniform humidification mechanism (1). The top of the uniform humidification mechanism (1) is provided with a reciprocating printing mechanism (2), and the top of the reciprocating printing mechanism (2) is provided with a printing top plate (210). Its features are, Also includes: The uniform humidification mechanism (1) includes a conical protective cover (107), and fixed blocks (108) are symmetrically installed inside the conical protective cover (107). A rotating motor (109) is fixedly installed on the outside of one side of the fixed block (108). The output end of the rotating motor (109) is fixedly connected to a rotating tube (110), and a humidifying unit (111) is installed on the outside of the rotating tube (110). Among them, a connecting water pipe (112) is fixedly installed on the side of the rotating tube (110) away from the rotating motor (109), and the connecting water pipe (112) is rotatably connected to the fixed block (108).
2. The humidification device for a screen printing machine based on cigarette box production according to claim 1, characterized in that: Support legs (102) are fixedly installed around the bottom of the printing workbench (101), support blocks (103) are fixedly installed around the top of the printing workbench (101), a printing screen (104) is fixedly installed on the top of the support blocks (103), and humidity sensing units (105) are symmetrically installed on the top of the printing screen (104).
3. The humidification device for a screen printing machine based on cigarette box production according to claim 2, characterized in that: Mounting brackets (106) are fixedly installed on both sides of the top of the printing workbench (101). The conical protective cover (107) is fixedly connected to the mounting brackets (106). An air supply and guiding unit (113) is fixedly installed at the end of the mounting bracket (106). The air supply and guiding unit (113) is fixedly installed inside the conical protective cover (107).
4. The humidification device for a screen printing machine based on cigarette box production according to claim 3, characterized in that: A dustproof net (114) is fixedly installed on one side of the air supply and flow guiding unit (113). A fan bracket (115) is fixedly installed at the center of the air supply and flow guiding unit (113). A low-noise fan (116) is fixedly installed at the center of the fan bracket (115).
5. A humidification device for a screen printing machine based on cigarette box production according to claim 1, characterized in that: The reciprocating printing mechanism (2) includes a reciprocating support (201), which is fixedly installed on the top of the printing workbench (101). A reciprocating motor (202) is fixedly installed on one side of the reciprocating support (201), and a reciprocating lead screw (203) is fixedly connected to the output end of the reciprocating motor (202). A lead screw sleeve (204) is provided on the outside of the reciprocating lead screw (203).
6. A humidification device for a screen printing machine based on cigarette box production according to claim 5, characterized in that: A first limiting plate (205) is fixedly installed on the outer side of the lead screw sleeve (204). A translation sliding rod (206) is symmetrically installed inside the reciprocating bracket (201). A translation sliding sleeve (207) is slidably connected to the outer side of each of the two translation sliding rods (206). A second limiting plate (208) is fixedly installed on the outer side of the translation sliding sleeve (207). An installation bracket (209) is fixedly installed on the outer side of the first limiting plate (205) and the second limiting plate (208).
7. A humidification device for a screen printing machine based on cigarette box production according to claim 6, characterized in that: The printing top plate (210) is fixedly installed on the outside of the mounting bracket (209). The bottom of the printing top plate (210) is symmetrically equipped with lifting cylinders (211). The bottom of each of the two lifting cylinders (211) is fixedly equipped with a lifting bracket (212). The bottom of each of the two lifting brackets (212) is fixedly equipped with a printing scraper (213) and a paint brush (214). The top of each of the two lifting brackets (212) is symmetrically equipped with a lifting limit rod (215). The lifting limit rod (215) is slidably connected to the printing top plate (210).