Heating drum of film laminating machine
A technology for heating rollers and laminating machines, applied to printing machines, general parts of printing machinery, printing, etc., can solve the problems of large axial temperature difference of rollers, affecting the quality of coating, and difficult temperature control, so as to reduce temperature difference and heat The effect of uniform effect and reduction of energy waste
Pending Publication Date: 2015-03-18
樊东生
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Problems solved by technology
The existing integrally heated heating drum is easy to cause heat waste, and the temperature difference in the axial direction of the drum is large, which affects the quality of the coating. At present, some existing technologies install multiple electric heaters on the inner wall of the heating drum. Although energy is saved, the heating The effect is point-like distribution, so temperature control is difficult
Method used
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Embodiment Construction
[0010] Such as figure 1 As shown, the present invention includes a heating roller 1, and an electric heater 2 is arranged inside the heating roller 1, and the electric heater 2 is strip-shaped, and is attached to the inner side of the cylinder wall of the heating roller 1 in a spiral shape. In order to increase the contact area, the surface of the electric heater 2 in contact with the heating roller 1 is coated with heat conduction oil.
[0011] In order to monitor and control the temperature of the heating roller, a temperature sensor 3 is provided on the right side of the heating roller 1 .
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The invention provides a heating drum of a film laminating machine. An electrical heater is arranged in the heating drum, is strip-shaped and is spirally attached to the inner side of the drum wall. The contact surface of the electrical heater and the heating drum is coated with heat-conducting oil; a temperature sensor is arranged on the left side or the right side of the heating drum. The spiral strip-shaped electrical heater is arranged on the inner side of the drum wall of the heating drum, so the heating effect of the heating drum is more uniform; compared with spot heating formed by a plurality of independent electrical heaters, the heating drum has the advantages that the temperature difference of each part of the drum is effectively reduced and prevented, the temperature adjustment is extremely simple, and the requirement on a temperature control system is low. Particularly, the heat loss is reduced, and the energy waste is reduced.
Description
technical field [0001] The invention relates to plastic film attaching equipment, in particular to a heating roller of a laminating machine. Background technique [0002] Lamination is to apply an adhesive to a plastic film, and then combine it with a printed matter that uses paper as a substrate, pressurized by a rubber cylinder and a heating roller, and form a product that combines paper and plastic. The coated printed matter has a smoother and brighter surface due to the addition of a thin and transparent plastic film on the surface, which not only improves the gloss and fastness of the printed matter, but also prolongs the service life of the printed matter. Antifouling, abrasion resistance, folding resistance, chemical corrosion resistance and other protective effects. There are two kinds of laminating machines: instant film laminating machine and pre-coating film laminating machine. Both laminating machines need heating rollers for pressing. The quality of the laminat...
Claims
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IPC IPC(8): B41F23/08
Inventor 樊东生
Owner 樊东生