Sleeve labeling machine

A sleeve labeling machine comprising at least a shrink film synchronous transmission device equipped with label feeding rollers and label pulling rollers, which can produce a synchronous guide and conveyance by feeding and pulling action against a shrink film on a center column;

• wherein the center column includes a first column and a second column aligned with the first column and cutter through is formed between the first column and the second column, said label feeding rollers are set at the side of the first column of the center column, and at the top of a cutter device;
• said label pulling rollers are set at the side of the second column of the center column, and below said cutter device;
• said label feeding rollers can convey the shrink film on the center column down, and after the label pulling rollers pulling synchronously, said shrink film can be cut by the cutter device, forming a single shrink film sheet at the second column of said center column, and then said label pulling rollers synchronously continue pulling each shrink film down, so that the shrink film can accurately cover a surface of cans or bottles as a shrink packaging;
• wherein said shrink film synchronous transmission device is provided with a linkage gear module and a support frame, the linkage gear module is of a left and right symmetrical structure, which from top to bottom is provided with two symmetrical first rotating arms, two symmetrical second rotating arms, two symmetrical third rotating arms, two symmetrical fourth rotating arms, two symmetrical first gears, two symmetrical second gears, two symmetrical third gears, two symmetrical fourth gears and two symmetrical fifth gears;
• wherein said two first gears are connected to each other and are fixed on said support frame, one of the first gear is connected to a power equipment, so that the two first gears can be rotated in opposite direction;
• the two first gears are set on a top end of the two first rotating arms respectively, the two second gears are set between the two first rotating arms and the two second rotating arms respectively, the two third gears are set between the two second rotating arms and the two third rotating arms, the two fourth gears are set between the two third rotating arms and the two fourth rotating arms, and the two fifth gears are set on a lower end of the two first rotating arms respectively;
• the two third gears are connected to the label feeding rollers to simultaneous rotation, and the two fifth gears are connected to the label pulling rollers to simultaneous rotation.