Apparatus for manufacturing LED reflective sheet

An apparatus for manufacturing an LED reflective sheet, the apparatus comprising:

• a structural frame;
• a reflective sheet supply roll rotatably installed in the middle of the structural frame to supply a reflective sheet;
• a printing unit installed in the front of the structural frame to print a light-induced pattern and a release paper adhesive pattern on the supplied reflective sheet through an adhesive reflective liquid;
• a dryer installed on an upper portion of the structural frame to dry the reflective sheet on which the light-induced pattern and the release paper adhesive pattern are printed while passing therethrough;
• a winding roll rotatably installed in the rear of the structural frame to wind the reflective sheet dried while passing through the dryer in the form of a roll;
• a release paper supply unit configured to supply a release paper to a surface of the reflective sheet on which the light-induced pattern and the release paper adhesive pattern are printed before the reflective sheet is wound on the winding roll so that the release paper and the reflective sheet are wound together in a state where they are laminated;
• and
• a plurality of guide rollers installed between the reflective sheet supply roll, the printing unit, the dryer and the winding roll to guide the reflective sheet,
• wherein the printing unit includes a rubber roller and a printing roller which are arranged vertically to guide the reflective sheet therebetween while rotating in a direction where they are engaged with each other, and is configured so that:
• the printing roller includes pattern printing grooves into which an adhesive reflective liquid for printing the light-induced pattern is injected and release paper adhesive printing grooves into which the adhesive reflective liquid for printing the release paper adhesive pattern is injected, which are formed in an outer peripheral surface thereof;
• a tray for storing the adhesive reflective liquid is installed under the printing roller, thereby, when the printing roller rotates while a portion of a lower side of the printing roller is immersed in the adhesive reflective liquid, the adhesive reflective liquid is applied to an outer peripheral surface of the printing roller;
• a knife having an end in contact with the outer peripheral surface of the printing roller is installed on one side of the printing roller, thereby when the printing roller to which the adhesive reflective liquid is applied rotates, the adhesive reflective liquid applied to the outer peripheral surface of the printing roller is removed so that the adhesive reflective liquid remains only in the pattern printing grooves and the release paper adhesive printing grooves;
• and thus, when the reflective sheet passes between the rubber roller and the printing roller, the adhesive reflective liquid remaining in the pattern printing grooves and the release paper adhesive printing grooves of the printing roller is transferred to the reflective sheet to be printed thereon,
• wherein the release paper supply unit includes a release paper supply roll configured to supply a release paper, and a pair of lamination rollers configured to rotate in a direction where they are engaged with each other, thereby, the release paper is supplied between the pair of lamination rollers when the reflective sheet passes therethrough, so that the reflective sheet and the release paper are wound together on the winding roll in a state where they are laminated, and
• wherein the apparatus further comprising:
• a tension load cell installed in a portion of the structural frame where the reflective sheet supplied from the reflective sheet supply roll passes to constantly adjust a tension of the supplied reflective sheet;
• a printing roller mounting means configured to rotatably install the printing roller in the structural frame;
• a rubber roller position adjustment means configured to adjust a degree of adhesion with the printing roller by regulating the position of the rubber roller;
• a tray position adjustment means configured to adjust a height of the tray to control a gap between the tray and the printing roller;
• and
• a knife operating means configured to adjust the position of the knife so that the knife selectively comes into contact with the printing roller.