Card leveling mechanism and method of re-transfer card printer

Abstract

The invention discloses a card leveling mechanism and method of a re-transfer card printer. The card leveling mechanism comprises a first leveling mechanism driving roller and a second leveling mechanism driving roller which are located below a transfer plane and are arranged at an interval along a card feeding direction, and further comprises a swing leveling assembly. The swing leveling assembly comprises a leveling mechanism support, a first leveling mechanism idle wheel, a second leveling mechanism idle wheel and a leveling idler wheel, wherein the first leveling mechanism idle wheel, the second leveling mechanism idle wheel and the leveling idler wheel are installed on the leveling mechanism support and located above the transfer plane, and the first leveling mechanism idle wheel and the second leveling mechanism idle wheel are each provided with a leveling spring. In the initial state, the bottoms of the first leveling mechanism idle wheel, the leveling roller and the second leveling mechanism idle wheel are arranged gradually higher in order. The leveling mechanism support is provided with a swing fulcrum towards a card inlet side. By arranging the leveling mechanism support capable of swinging up and down, the leveling rollers are driven to conduct bending correction on cards, so that the cards do not need to be stopped for correction, and the working efficiency is improved.

Description

technical field [0001] The invention relates to the technology in the field of retransfer card printers, in particular to a card leveling mechanism and a leveling method of a retransfer card printer. The retransfer card machine is mainly used to make credit cards, financial cards, membership cards card and other machines. Background technique [0002] The general principle of the retransfer card machine is to use the ribbon-shaped ribbon and the ribbon-shaped transfer film to be tightly pressed between the thermal print head and the rubber roller. The ribbon is a ribbon-shaped plastic base film with dye coated on one side. The dye can be printed on the receiving layer of the transfer film through heat and pressure. The transfer film is a belt-shaped plastic base film coated with a receiving layer that can receive dye. The receiving layer can be peeled off by heat and pressure. angle, away from the plastic base film and onto the card surface. The digitally controlled therma...

AI Technical Summary

Problems solved by technology

[0003] The retransfer card machine is usually equipped with a card leveling mechanism. After the card is heated by the heating roller, since only one side of the card is transferred, the two sides are heated unevenly, and the cooled card will tend to be overheated. This side of the card is bent, and the generally known technology is to use another set of heating rollers to heat the unheated side of the card to balance the deformation of the uneven heating on both sides. This method increases the production cost of the printer; or when the card still has residual heat , let the card stay in the leveling mechanism, and use the mechanism to correct the reverse bending of the card to straighten the card, so that the card will be flattened before being discharged and then transferred to the card machine. This method will reduce the printing efficiency of the printer

When the card may change the temperature of the heating roller of the transfer module due to different materials or other reasons, resulting in different degrees of bending of the card, the conventional technology is to change the temperature of the heating roller of the leveling module, which will repeatedly heat the card, resulting in deterioration of the card material or The surface image of the card in contact with the heating roller is damaged, or, change the time of reverse bending correction of the leveling module or the number of reverse bending corrections to cope with the processing, such as figure 1 As shown, when the card is sent to the leveling module, the card stays at the leveling module, and the pressing member or the pressing member presses down on the curved card to perform reverse bending correction, so that it is reversed The curved card is caused by the discontinuous inflection point of curvature caused by the clamping roller, which will cause the card to appear wavy after leveling

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