Cylindrical bottles generally require multi-color overprinting. In order to achieve accurate overprinting, positioning points or positioning holes are usually set at the bottom of the bottle. When printing, the pins on the fixture will be inserted into the positioning holes for positioning in the circumferential direction to complete the overprinting.
Manual positioning can be used when placing the bottle into the fixture, but it will take time. If a motor is installed at the end of the fixture to drive the bottle to rotate automatically for positioning, the work efficiency will be greatly improved, and the accuracy of overprinting will also increase.
This curved screen printer is suitable for bottles with positioning holes at the bottom. If there are no positioning holes at the bottom, a servo motor-controlled screen printer is still required for overprinting.
This is a pad printer designed for roll-to-roll materials:
Roll-to-roll printing
• This method is suitable for continuous material printing. Materials such as plastic film and paper labels can be fed in roll form and automatically transferred during the printing process, which improves printing efficiency and enables large-scale, continuous production operations.
Monochrome printing
• Although it is monochrome, it is very practical for some plastic film and paper label printing that do not require high color or specific monochrome designs (such as safety signs that only use a single eye-catching color), and monochrome printing is easier to control in terms of color accuracy and consistency.
Touch screen operation panel
• Intuitive and convenient, the operator can complete various parameter settings such as printing speed, temperature (if related to heating and drying), tension control parameters, etc. by touching the screen. It can display the operating status of the equipment, including fault alarm information, so that users can adjust and maintain the equipment in time.
IR tunnel oven
• IR (infrared) tunnel ovens are mainly used for drying after printing. It uses infrared radiation heating to quickly and effectively dry ink, and the heating is uniform, which helps to improve printing quality and reduce problems such as smudges and fading caused by ink not drying. It is an ideal drying method for materials such as plastic film and paper labels that require high drying speed and quality.
Automatic tension control
• It can accurately control the tension of the material during the transmission process, ensure the flatness and stability of plastic film and paper labels during feeding, printing and receiving, avoid material stretching or wrinkling, and ensure the accuracy and quality of the printed pattern.
Automatic positioning
• It can accurately determine the printing position, which is crucial for materials such as plastic film and paper labels that require precise pattern layout. It can ensure that the pattern position is consistent each time it is printed, which is conducive to improving the consistency and aesthetics of the product.
Working Principle
The pad dips the ink in the ink tray and transfers the ink to the designated product on the workbench through PLC instructions to achieve multi-directional, multi-color, and multi-angle complex pad printing. During operation, the 6-color ink tray ink supply system provides corresponding ink for different color requirements, and the automatic pad rotation system can adjust the pad angle of the pad that needs to be dipped in different colors of ink as needed. After the pad dips in the ink, the pattern is accurately transferred to the object placed on the high-precision adjustable workbench. The entire process is controlled by the touch screen PLC for parameter setting and process control. After printing is completed, the automatic pad cleaning device will clean the pad, and when the pad needs to be replaced, the automatic pad replacement system will play a role to ensure that the printing operation is carried out continuously and efficiently.
Structural Features
• High-precision adjustable workbench:
• The high-precision characteristics ensure that the objects to be printed placed on it are accurately positioned, and can meet the tasks with demanding requirements for printing position accuracy. Whether it is a small precision electronic component or a slightly larger craft, it can ensure that the pattern is accurately transferred to the designated position.
• The workbench is adjustable and can adapt to objects of different sizes and shapes. By flexibly changing parameters such as angle, height, and horizontal position, it is convenient to print various irregular or special-shaped objects, greatly broadening the scope of application of the machine.
• 6-color ink tray ink supply system:
• With 6 colors of ink tray ink supply, it ensures that the ink supply of each color is stable and accurate, so that the transferred pattern has full color and natural transition.
• Convenient ink replacement and mixing. Operators can quickly replace different tones and types of ink according to the color matching of specific printed patterns, improve work efficiency, and ensure the diversity of printing effects.
• Automatic rubber head rotation system:
• The automatic rubber head rotation function allows the rubber head to correspond to the specified color according to the angle of the printing plate pattern and the ink color, so as to achieve uniform and complete ink transfer.
• The rotation angle can be precisely controlled. When printing some patterns with special angle requirements, such as oblique patterns on curved surfaces, the patterns can be accurately printed, which improves the flexibility and accuracy of printing.
• Touch screen PLC control:
• The touch screen PLC control provides an intuitive and convenient operation interface. The operator can easily set many key data such as the movement trajectory of the rubber head, ink dipping time, transfer pressure, ink supply parameters of each ink tray, and workbench adjustment parameters.
• The PLC control system has powerful logical operation and program control capabilities. It can accurately coordinate the actions of each component according to the preset program to realize an automated and intelligent printing process. It can also store multiple printing modes, which is convenient for quickly switching operation modes for different products and improving production efficiency.
• Automatic rubber head cleaning device:
• The automatic rubber head cleaning device can promptly remove the ink remaining on the rubber head to prevent the ink from drying on the rubber head and affecting its elasticity and transfer effect. After each printing is completed or after a certain number of printings, the device will automatically start the cleaning process to ensure that the rubber head is always in good working condition.
• The cleaning number can be set during the cleaning process to extend the service life of the rubber head and reduce the maintenance cost of the equipment.
• Automatic replacement of rubber head system:
• The automatic replacement of rubber head system can automatically complete the removal and installation of the rubber head according to the set program without manual operation when replacing rubber heads of different specifications, materials or after wear, saving time and manpower and improving the continuous operation capacity of the equipment.
• The system can accurately identify different types of rubber heads, ensure that the replaced rubber heads are installed accurately and firmly, and ensure the stability and printing quality of the subsequent printing process.
High accurate rotating servo pad printer
The printing area of the pad printing machine is generally 90% of the size of the steel plate, and the pad printing opportunity of the oil cup is even smaller. Most pad printing machines use the stroke of the oil cup to move forward and backward to expand the printing area, but if the stroke is too large, it will The accuracy of the pad printing machine is reduced, and the adjustment is difficult, so there is a pad printing machine with the oil cup moving left and right. The oil cup moves left and right, which can greatly increase the size of the steel plate and the printing area will also increase significantly. The pad printing machine with the oil cup moving left and right is very suitable for pad printing products with a long length, such as infusion tubes, clubs, turnover boxes, rulers and other products.
Fully automatic screen printing machine specially designed for disposable cups such as milk tea cups, coffee cups, beverage cups, etc.
The width of the integrated synchronous feeding and feeding device of the whole machine can be adjusted flexibly, which is convenient to adjust according to the size of the cup; the speed can be adjusted steplessly to match the transportation speed with the printing speed;
Automatic manipulator push feeding;
Online flame treatment device or plasma treatment can improve the surface tension of PE material and increase the adhesion of ink;
Stable vertical turntable transmission system, stable operation and high precision;
Automatic screen printing device, the fixture can be changed according to the size of the cup; electronic sensors are installed in the printing area to realize the function of no part without printing; photoelectric switch tracking system can be installed to realize color printing.
High-performance UVLED drying device, instant drying of ink; energy saving, safe and environmentally friendly.
The whole machine realizes mechanical transmission and touch screen operation, which can easily realize man-machine dialogue and make the operation more handy;
The main parts are processed by CNC, the high-quality processing accuracy ensures the stability of high-speed operation, and the printing speed is up to 2000pcs/h;
The electrical components and control system of the whole machine use German and Japanese components to ensure stable printing quality.
Pad printing machines are suitable for printing products with complex appearance or products that cannot be realized by silk screen printing. In most cases, it is suitable for products with relatively small dimensions. However, with the development of printing technology and the exchange and integration of various industries, pad printing machines have also begun to set foot in other In some fields, such as the tableware industry of daily ceramics, some bowls, plates, dishes, spoons and other products.
Generally speaking, the shapes of these products are relatively complex, and it is difficult to print by conventional printing methods. Therefore, the early decoration method is to print the graphics and text on the decals first, and then transfer them to the surface of the tableware. The production of decals is a comparison Complicated craftsmanship, and most of the processes of decals need to be done by hand. With the rise in labor costs and the decline in the price of finished products, this traditional craftsmanship is becoming more and more unsuitable for reality.
The latest market trend is the use of pad printing machines. The biggest advantage of pad printing machines is that they can use a soft rubber head to wrap the product to the maximum extent, and then transfer the pattern to the surface of the product, and the graphics and text on the steel plate are transferred to the deformation of the product surface. It can be corrected by continuously modifying the pre-deformation of the pad printing plate.
Ceramic pad printing machines currently have single-color, double-color, three-color, and four-color. Due to the very large size of the steel plate, at present, an open structure is basically used for ink supply. The control system also has pneumatic drive steering servo motor drive.
The most difficult thing in the pad printing of ceramic tableware is not the manufacture of the machine, but the production of steel plates according to the pattern of the product, and the multiple printing tests after customizing the pad printing head. Once the test is completed, the formal production of subsequent products becomes simple.
Extra-large ink tray design
It can accommodate more ink and improve the continuity and efficiency of pad printing. For products with complex shapes, large pattern sizes, and large ink consumption, such as ceramic tableware, it can ensure sufficient ink supply.
High-precision sliding workbench
It is usually composed of high-precision guide rails and sliders, with the characteristics of high precision, low friction resistance, and smooth operation. During the pad printing process, the ink tray, steel plate, and workbench are located on the same mobile platform, which makes it convenient for the scraper to remove the ink on the steel plate and simplifies the structure of the machine.
Self-balancing scraper
The self-balancing structure ensures that the scraper always maintains good contact with the ink tray during the scraping process, and scrapes the ink on the steel plate under the action of sufficiently small friction.
Four-color ink tray ink supply structure
It can provide four colors of ink at the same time to meet the needs of multi-color patterns in ceramic tableware pad printing, achieve colorful, bright and accurate four-color pad printing effects, and make the patterns on ceramic tableware more vivid and realistic.
Touch screen operation panel
As a human-machine interaction interface, operators can intuitively set various parameters of pad printing through the touch screen, which is convenient for operators to adjust and maintain equipment in time, improve the convenience of operation and the intelligence of equipment.
Four-color pad printing
Using the four-color ink tray ink supply structure and corresponding pad printing technology, the four colors of ink are transferred to the ceramic tableware in turn. Through the superposition and mixing of colors, various complex patterns and color effects are formed to meet the personalized needs of different customers for ceramic tableware decoration and enhance the added value of products.
The thermal sublimation process in the clothing industry is the most common process for clothing printing. First, the thermal transfer film is printed by silk screen, and then the pattern on the thermal transfer film is transferred to the garment with a heat transfer machine. This process is particularly suitable for cotton Quality fabric. The production of thermal transfer film by silk screen printing is a complicated process. The video shows one of them. It requires printing water-based glue on the paper, curing the glue on the surface, sprinkling hot melt adhesive powder, and doing it again After drying, the graphic area will be covered with white hot melt adhesive powder. The machines involved in the video are flat screen printers, IR ovens, dusters and infrared tunnel ovens. The first section of the tunnel furnace is used for the drying of glue, and the second section of the tunnel furnace is used for the drying of hot melt powder.
The curved hot stamping machine can stamp cylindrical products. When the diameter of the cylinder exceeds 250 mm, the manufacturing difficulty of the hot stamping machine will be greatly increased.
It is very important to keep the pressure balanced during the contact between the plastic bucket and the hot plate. The latest curved hot stamping machine uses the following main technologies:
1) Pneumatic pressurization of hot stamping plate to ensure stable pressure;
2) The hydraulic cylinder is used to push the fixture to ensure the continuous and stable rotation of the plastic bucket.
The bronzing machine is a very important equipment in the post-press processing of the packaging printing industry. When the shopping bag needs to be bronzing, the special design of the bronzing machine with the cantilever structure will make the bronzing perfect. The cantilever structure of the bronzing machine can conveniently put the shopping bag on the cantilever workbench. At the same time, the bronzing machine adopts a hydraulic system, which can realize concave and convex embossing and three-dimensional bronzing for the shopping bags of high-grade brand goods.
When you are shopping in a shopping mall, merchants often put the goods in their shopping bags and sell them together. The shopping bag is a free gift, in addition to the goods, so that you can carry it, the merchant will always use it to promote their brand. It is very common to print text or LOGO on top of shopping bags.
Brands that sell a lot of money may need offset printing, but a large number of small and medium-sized brands may prefer silkscreen and hot stamping. Silk screen printing and hot stamping are very suitable for decoration on the formed shopping bag. Although it is slow, it is adaptable and easy to change, so it is widely welcomed.
Packaging industry, Die cutting, Embossing, high precision stamping, Decorative painting wood products branded paste painting process requires a lot of pressure. Usually the pressure of the pneumatic hot stamping machine is difficult to more than 15 tons, more than 15 tons stamping pressure hydraulic drive could be considered.
Pneumatic bronzing machine to pass the gas pressure as a medium, there are a lot of uncertainty, because there is more room for the gas molecules, can easily be compressed, so the pressure delivered to the product surface, there would be a process of change. The distance between the liquid molecules is much smaller than gas molecules, once the pressure delivered to the product surface, the pressure will remain for a long time stability.
Hydraulic drive, the machine itself to be equipped with a complete hydraulic system, compared to the pneumatic hot stamping machine, the structure is more complex, some of which will be expensive.
For up to 800mm carbon fiber shaft, the heat transfer more difficult, but we have overcome many difficulties, and finally completed a set of automatic transfer machine.
1) carbon fiber material: Carbon fiber is made from organic fibers by carbonization and graphitization treatment obtained microcrystalline graphite materials. Similar to the microstructure of carbon fiber artificial graphite is turbostratic graphite structure. A mechanical performance of new materials, steel accounted for less than 1 / 4, the tensile strength of carbon fiber resin composite materials are generally in 3500Mpa above, is 7-9 times that of steel, tensile elastic modulus of 230 ~ 430Gpa also high in steel. Therefore, the specific strength of CFRP material intensity and the ratio of the density can be achieved 2000Mpa / (g/cm3) above, the specific strength of A3 steel only 59Mpa / (g/cm3) about a specific modulus than steel. Higher than the strength of the material, the smaller the component weight, higher than the modulus, the greater is the stiffness, in this sense indicates that the carbon fiber has broad application prospects in engineering. Carbon fiber is a carbon content higher than 90% of the inorganic polymer fibers. In which the carbon content higher than 99% of said graphite fibers. Carbon fiber axial strength and high modulus, non-creep, fatigue resistance, good heat and electrical conductivity between the metallic and metal between the thermal expansion coefficient, good corrosion resistance, low density of fibers, X-ray transparent too good. But its poor impact resistance, easy to damage, under the action of the acid oxidation, and metal composite occurs when the metal carbide, cementite and electrochemical corrosion. Therefore, before use of carbon fiber surface treatment. Carbon fiber shaft with the use of its excellent fatigue resistance. Through the experiment, as long as the transfer film adhesive layer to make the necessary improvements, the transfer of carbon fiber can achieve good results.
2) transportation; trough the use of the usual storage device can be placed about 150 shaft. As the inherent speed of thermal transfer, automatic transfer machine speed can reach 1200 per hour, higher speed depends on the overall structure of the machine, but given the long shaft, high speed could mean the loss of stability .
3) fixtures; double-stick-type structure, which is slender cylinder for the structure of commonly used products.
Working Principle
• Four-station turntable: The four-station turntable rotates to drive the fixture and product to the next station, and then performs surface treatment, flat screen printing machine, and robot unloading. Then it enters the IR tunnel drying furnace, realizing automated assembly line operation and improving production efficiency.
• Touch screen operation panel: It is a human-computer interaction interface. The operator controls the operation of the screen printing machine and drying furnace by touching the corresponding icons on the screen or inputting instructions.
• Electric up and down of the screen: During the screen printing process, the up and down movement of the screen is accurately controlled by an electric device. When printing is required, the screen is lowered to a position that fits the surface of the product, and then the ink is printed on the product through the screen through a scraper and other devices. After printing, the screen rises and prepares for the next printing.
• Unloading robot: After the work is completed, the unloading robot accurately grabs the processed product under the command of the control system and places it in the designated unloading area to complete the unloading action. Its action is accurate and efficient.
• IR tunnel furnace: Using the principle of infrared radiation heating, when the product enters the IR tunnel furnace, the infrared rays emitted by the infrared radiation source can penetrate the surface of the product, intensify the molecular vibration inside the product, thereby quickly raising the temperature and accelerating the drying and curing process of the ink.
Composition structure
• Four-station turntable: mainly composed of turntable body, drive motor, indexing mechanism and positioning device. The turntable body carries the product, the drive motor provides rotational power, the indexing mechanism ensures that the turntable rotates accurately to each station, and the positioning device ensures that the turntable can stop accurately at each station for corresponding operations.
• Touch screen operation panel: including touch screen display, controller and related electronic components. The touch screen display is used to display the operating status of the equipment, parameter setting interface and other information. The controller receives touch instructions and converts them into control signals for the production line equipment, and the electronic components ensure the normal operation of the entire operation panel.
• Electric up and down device for screen: composed of lifting motor, screen mounting frame, linear guide rail and limit sensor. The lifting motor drives the screen mounting frame to move up and down along the guide rail, and the limit sensor limits the up and down travel of the screen to ensure that it moves within a safe range.
• Unloading robot: generally composed of a robot arm, pneumatic or electric gripper, drive system and control system. The robot arm is responsible for moving the gripper to the appropriate position to grab the product, the drive system provides power for the robot arm and gripper, and the control system controls the action sequence and position accuracy of the robot.
• IR tunnel furnace: mainly composed of furnace body, infrared heating tube, temperature sensor, conveyor belt and ventilation system. The furnace body plays a role in heat preservation, the infrared heating tube is the core component of heating, the temperature sensor monitors the temperature in the furnace, the conveyor belt transports the product through the tunnel furnace, and the ventilation system helps to evenly distribute heat and discharge exhaust gas.
Working Principle
• The servo shuttle workbench works according to the principle of servo system. The servo driver receives control instructions to drive the servo motor, driving the workbench to shuttle accurately between different printing stations. The encoder feeds back the motor position and speed information to the driver in real time, realizing closed-loop control to ensure shuttle accuracy.
• The touch screen is used as a human-machine interaction interface, and the operator sets and adjusts the printing parameters through touch operation.
• Independent printing of the rubber head means that each rubber head can control its up and down stroke, speed and printing action individually.
Composition Structure
• Servo shuttle workbench: It consists of a workbench, a servo motor, a servo driver, an encoder, a transmission mechanism and a guide rail. The workbench carries the substrate, the servo motor provides power, and the transmission mechanism drives the workbench to shuttle on the guide rail. The encoder feeds back the position and speed information, and the servo driver controls the motor movement.
• Touch screen: It includes a touch screen display, a controller and related electronic components. The touch screen display shows the device status and parameter setting interface, and the controller receives touch commands and converts them into control signals and sends them to the device control system.
• Independent printing device for rubber head: mainly includes rubber head, rubber head fixing frame, cylinder or electric push rod, adjustment mechanism, etc. The rubber head is installed on the fixing frame, and the cylinder or electric push rod controls the rubber head to move up and down. The adjustment mechanism can adjust the parameters such as rubber head position, angle, stroke and speed.
Under normal circumstances, a bronzing machine will only install a set of hot stamping foil feeding device and winding device, only hot stamping one color bronzing film, if you want to hot stamp another color bronzing film, you must use another set hot stamping machine, some users may find the cost too high. To this end, we have developed a two-color hot stamping machine (H2-TC4060LPT), which adds a feeding and winding device to the original hot stamping machine, which can stamp two colors of bronzing film at one time. However, this bronzing machine can only be used if the two hot stamping patterns are far apart and parallel to each other.
Large size for 500*800mm paper;
Super pressure, suitable for large area bronzing, die cutting and indentation, paste;
Double-volume receiving device, suitable for two-color hot stamping;
Upgraded operation panel for easier operation;
High strength steel plate for excellent stability.
