Printing device for offset printing
A technology of offset printing and film, which is applied in the direction of photolithography exposure device, microlithography exposure equipment, etc., which can solve the problems of inaccurate positioning and installation of photosensitive plates, inflexible adjustment of strong light up and down, and low efficiency of graphic film control, etc.
Active Publication Date: 2021-11-09
CHONGQING HUAFENG DIJIETE PRINTING MATERIAL
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Problems solved by technology
The existing printing machine is inaccurate in the positioning and installation of the photosensitive plate, and the vertical adjustment and control efficiency of the graphic film is low. The lifting adjustment of the strong light is not flexible, and the printing efficiency is low.
Method used
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Embodiment Construction
[0019] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings to be more readily understood by those skilled in the art, so that the scope of the invention will be more clearly defined.
[0020] like Figure 1 to 5 Shown, offset printing copy apparatus, comprising a frame 1, the bottom position of the rack 1 is provided with a base 2, a top surface of the base plate 2 is provided with a locking means 3, a lock plate provided with the film lifting mechanism 3 above means 4, the lifting mechanism is mounted on the film 4 with a graphic film 5, the top chassis 1 is mounted copy light means; Edition lock mechanism 3 includes a positioning plate 16, the positioning plate 16 is mounted on the top surface of the base 2, positioning positioning cavity 16 is provided on the plate 17, the positioning plate 16 on both sides are provided with side plates 18, top plate 18 is provided with a top plate 19, top plate 19 is p...
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The invention discloses a plate exposure device for offset printing, which comprises a frame, a base is provided at the inner bottom of the frame, a plate locking mechanism is provided on the top surface of the base, a film elevating mechanism is provided above the plate locking mechanism, and a film elevating mechanism Graphic film is installed on the top of the frame, and a strong light printing mechanism is installed on the top of the frame; the locking mechanism includes a positioning plate, which is installed on the top surface of the base, and a positioning cavity is provided on the positioning plate, and both sides of the positioning plate are There is a side plate, the top of the side plate is provided with a top plate, the top plate is provided with a third hydraulic cylinder, the lower part of the third hydraulic cylinder is provided with a third piston rod, the lower end of the third piston rod is provided with a lock seat, and the lock seat is installed on Above the positioning plate; the film lifting mechanism includes a lifting frame, and a number of fourth hydraulic cylinders are arranged on both sides of the frame. , the lower end of the lifting shaft is provided with a lifting seat, and the graphic film is installed between the lifting seats. The invention greatly improves the printing efficiency.
Description
Technical field [0001] The present invention relates to a copy device, a copy particularly relates to an offset printing apparatus. Background technique [0002] Shai Banji for producing a printing plate forming a contact exposure apparatus, with a pressure, so that the photosensitive printing plate precursor with a close fit, by a photochemical reaction so that the image on the original plate accurately on the photosensitive proofing plate. Shai Banji mainly by the light source apparatus, the exposure chamber, the vacuum chamber, electrical parts, base and other components. Due to the particularity of the plate-making process, so that the plate has a relatively high environmental requirements, requiring good sealing plate shop, to avoid direct irradiation of strong light. Doing so may function as a dust, to avoid the PS plate may be two or copy storage and light leakage during exposure. When the air filled in the copy process with a lot of dust, larger particles of dust may fall...
Claims
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IPC IPC(8): G03F7/20
CPCG03F7/20
Inventor 朱苗红孙责
Owner CHONGQING HUAFENG DIJIETE PRINTING MATERIAL