Paper conveying roller of printing machine

• Main Author: YANG WEIPENG
• Format: Patent
• Language: Chinese; English
• Published: 22.12.2020
• Subjects: LINING MACHINES; PERFORMING OPERATIONS; PRINTING; PRINTING MACHINES OR PRESSES; STAMPS; TRANSPORTING; TYPEWRITERS

The utility model discloses a paper conveying roller of a printing machine, which comprises an inner roller, a refrigerating pipe and an outer roller, the inner roller and the outer roller are both ofa hollow structure, the outer roller is coaxially sleeved on the outer side of the inner roller, and a gap is formed between the inner wall of the outer roller and the outer wall of the inner roller;the refrigeration pipes are distributed on the inner wall of the inner roller in a spiral coiling structure along the axis of the inner roller, one end of each refrigeration pipe extends out of one end of the inner roller, and the other end of each refrigeration pipe extends out of the other end of the inner roller. The problem that in the prior art, when a paper conveying roller rotates at a high speed, heat dissipation is not in time is solved. 本实用新型公开了一种印刷机传纸辊，包括内辊、制冷管和外辊，所述内辊和外辊均为中空结构，所述外辊同轴套设在内辊外侧，外辊的内壁与内辊的外壁之间具有间隙；所述制冷管沿内辊的轴线呈螺旋状盘绕结构满布在内辊的内壁上，且制冷管的一端从内辊的一端伸出，制冷管的另一端从内辊的另一端伸出。本实用新型以解决现有技术中传纸辊高转速时，散热不及时的问题。