Printer label limiting structure and printer

Abstract

The invention provides a printer label limiting structure and a printer. The printer label limiting structure comprises a label frame shaft, a first positioning piece and a second positioning piece, wherein the first positioning piece and the second positioning piece are used for axially limiting a label roll. The second positioning piece is mounted on the label frame shaft through a connecting seat, the position of the connecting seat can be adjusted in the axial position of the label frame shaft, and the connecting seat is locked to the label frame shaft through a first locking structure. The second positioning piece is arranged on the connecting seat and can be switched between a standing state and a folded state, the second positioning piece blocks the outer side of the axial second end of the label roll when standing, the label roll can be taken out from the label frame shaft in the axial direction when the second positioning piece is folded, and the label frame shaft or the connecting seat is provided with a keeping structure used for keeping the second positioning piece in the standing state. The printer label limiting structure can adapt to limiting of label rolls with different axial sizes; and the second positioning piece can stay and be folded at any position, so that the label roll can be replaced at any position, the operation convenience and efficiency are greatly improved, and the universality is high.

Description

technical field [0001] The invention belongs to the technical field of printers, and in particular relates to a printer label limiting structure and a printer. Background technique [0002] For label printers, the labels are usually installed on the frame in the form of label rolls, usually supported by frame shafts, and the label rolls are coaxially sleeved on the frame shafts. [0003] In the prior art, there are two assembly methods for the label roll and the frame shaft: [0004] Method 1: There is an expansion structure on the frame shaft to radially compress and fix the label reel and the frame shaft together, and the frame shaft can rotate; the disadvantage is that the structure is complex and the cost is high; the diameter of the matched label reel is relatively single, Not compatible with label rolls of different diameters. [0005] Method 2: The label reel is covered on the frame shaft, and a limit mechanism is set to limit the outward movement of the label reel,...

AI Technical Summary

Problems solved by technology

[0004] Method 1: There is an expansion structure on the frame shaft to radially compress and fix the label reel and the frame shaft together, and the frame shaft can rotate; the disadvantage is that the structure is complex and the cost is high; the diameter of the matching label reel is relatively single, Not compatible with label reels of different diameters

[0005] Method 2: The label reel is covered on the frame shaft, and a limit mechanism is set to limit the outward movement of the label reel, which is compatible with most diameter label reels, but the current limit mechanism is either not adjustable in axial position, or only It can only be folded when it can be moved to the outermost end of the frame shaft, or it can only be loaded from the outer end of the frame shaft. When replacing the label roll, it is necessary to remove the limit mechanism before installing the label roll. The operation is inconvenient and the structure is relatively complicated.

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