The positioning hot stamping machine and the thermal transfer printing machine are packaging equipment for transferring the metal coating on the hot stamping paper and the printed graphic layer on the thermal transfer film to the substrate by using heat source and pressure. The positioning hot stamping machine refers to using a silica gel plate and bronzing. The version of the equipment, the thermal transfer printing machine uses a cylindrical silicone roller, in the printing thermal transfer industry, also mainly using a flat silicone plate.
First, the structure of the hot stamping machine and the thermal transfer printing machine
1.Workbench
The workbench is used to place the fixture and the substrate. The workbench mainly has a plane workbench, a shuttle workbench, and a turntable workbench. The flat workbench is used on a flat hot stamping machine and a flat thermal transfer machine, and the shuttle table is used on a curved hot stamping machine and a curved thermal transfer machine. In order to improve the hot stamping efficiency, the turntable table can also be installed on the flat stamping machine.
2. Hot pressing system
The hot stamping machine is a flat hot plate, which is equipped with a heating plate. The hot plate can move up and down. The hot transfer machine's hot head is a silicone roller that can move up and down and rotate. The silicone roller is heated by radiant heating. The upper and lower drive of the machine is driven by the cylinder, and the heat transfer machine is mostly hydraulic. In the hot pressing process, the hot head is pressed down and kept in contact with the ironing object for a period of time and then lifted up. Time has time relay control.
3. Paper feeding system
It is a device for installing bronzing paper and heat transfer film and performing automatic conveying control. The transfer of bronzing machine usually has time relay controlled according to time. In addition to time control, the thermal transfer film also has photoelectricity according to the node mark on the thermal transfer film. Switch controlled.
4. Control system
The control system is used to order the above-mentioned mechanical actions to make the printing process automatic. Now the bronzing machine and the heat transfer machine basically realize the microcomputer control, and the performance is relatively stable and reliable. The buttons on the control panel are divided into two functions: trial operation and automatic operation. The former is used for tuning and the latter is used for production.
Second, the positioning of hot stamping machine and thermal transfer printing machinery printing elements
Positioning hot stamping machine and heat transfer printing machine need to combine silica gel plate or silicone roller, hot stamping paper or heat transfer film, and the fixture can realize beautiful silk screen printing. In addition, temperature and pressure are the most important process elements for perfect hot stamping and thermal transfer.
1 silica gel plate and silicone roller
Silicone plates and silicone reliefs are mainly used in flat stamping machines, and silicone rollers are mainly used in thermal transfer machines. In addition, the silica gel plate and the silicone plate should be pasted onto the hot plate of the bronzing machine using high temperature glue and high temperature adhesive tape.
2. Gold foil and heat transfer film
The bronzing machine uses bronzing paper, and the heat transfer machine uses bronzing paper and thermal transfer film. Similar to the choice of ink, the adhesive layer of the hot stamping paper and the heat transfer film must match the material of the ironing material.
3. Temperature and pressure
The temperature is the minimum temperature at which the release layer of the hot stamping paper and the thermal transfer film is peeled off, and the hot melt layer is melted, and the pressure is derived from the elastic deformation of the silica gel plate and the silicone roller. Temperature control usually has thermocouple detection and a temperature controller for automatic control.
4. Fixture
It is necessary to make a fixture with good stability and good identity to ensure the accuracy of the overprint and the consistency of the position. The stamping pressure of the hot stamping machine and the heat transfer machine is much larger, so the manufacturing fixture has to withstand a large pressure, and the fixture has to withstand a certain temperature due to the presence of the heat source.
Classification of locating hot stamping machines and thermal transfer printing machines:
1. Flat hot stamping machine:
The hot stamping machine is flat, the table is stationary and the hot stamping machine can realize the hot stamping on the surface of the flat or nearly flat product. The plane hot stamping machine has a manual hot stamping machine and a pneumatic hot stamping machine. The manual hot stamping machine uses the hand to complete the up and down movement of the hot head, and other actions are still automatic. Common bronzing machines are pneumatically controlled. The turntable workbench hot stamping machine is the latest type of mounting the rotary table of the pad printing machine on the flat bronzing machine.
2. Surface hot stamping machine:
The bronzing machine that installs the shuttle table on the plane stamping machine and performs the modification of the program is a curved hot stamping machine, which can complete the surface bronzing of the cylindrical energy product.
3. Plane thermal transfer machine:
The hot head is a silicone roller, and the heat transfer machine that can reciprocate the worktable is a flat thermal transfer machine, and the planar thermal transfer machine can complete the transfer of a large area of the flat product.
4. Surface thermal transfer machinery:
If the workbench can only rotate, the heat transfer machine is a curved thermal transfer machine. Today's curved heat transfer machines are usually integrated with a planar thermal transfer machine, and a curved jig can be mounted on a flat table.
5. Copy type thermal transfer machine:
Some products have complex surface features, and must use a heat transfer machine that can float according to the surface fluctuations. The copy type thermal transfer machine can complete the thermal transfer of ellipsoidal and wave-shaped complex products.
The speed of locating hot stamping machines is generally slow, which seriously restricts the bronzing processing of some large-volume products. Therefore, the fully automatic bronzing machine begins to enter people's field of vision. Positioning hot stamping machines and thermal transfer printing machines have a wide range of applications in cosmetics, household goods, building materials industries. Like the pad printing machine and the screen printing machine, they constitute a unique landscape of the plastic product decoration market, adding brilliance to people's lives!
