Integral paper frame structure, vertical type and horizontal type printers comprising same

Abstract

The invention discloses an integral paper frame structure comprising a paper roll supporting shaft for sleeving a paper roll, wherein a paper roll pre-tightening mechanism arranged on one end of the paper roll supporting shaft comprises a fastening part fixedly connected with the end part of the paper roll supporting shaft, and a pre-tightening part pressed on one side of the paper roll, an elastic part is arranged between the fastening part and the pre-tightening part, and the pre-tightening part is movably connected with the paper roll supporting shaft in axial direction. By utilizing a unilateral supporting structure, large sized paper roll can be installed or demounted conveniently, by adopting the paper roll pre-tightening mechanism, the paper roll can be pre-tightened, and the paper roll can be quickly installed or dismounted by adopting a snap-in type connection between the paper roll pre-tightening mechanism and the paper roll supporting shaft, wherein the snap-in type connection is capable of being quickly installed or dismounted. A locating plate is mounted on the other end of the paper roll supporting shaft and located by a connecting block, the connecting block is located by adopting a simple slotted hole, so that printing paper with various widths and the same dimension can be located. The invention further discloses a vertical type printer and a horizontal type printer comprising the integral paper frame structure.

Description

technical field [0001] The invention relates to a paper holder structure used in a receipt printer, in particular to an integrated paper holder structure and a printer made of it. Background technique [0002] In the existing receipt printers, paper holders must be installed to support the printing paper rolls, and most of the existing paper holder structures are located on both sides of the paper rolls with two support plates, and the middle of the support plates is placed A paper roll support shaft, in consideration of the insertion of the paper roll, the paper roll support shaft and the two support plates are of a split structure, and the inner side of the two support plates is provided with a groove for placing the paper roll support shaft, and the groove is an opening As a result, during use, the opening of the groove must be upward, and other orientations cannot be used. Simultaneously, because the distance between the two support plates is relatively close, there is ...

AI Technical Summary

Problems solved by technology

[0002] In the existing receipt printers, paper holders must be installed to support the printing paper rolls, and most of the existing paper holder structures are located on both sides of the paper rolls with two support plates, and the middle of the support plates is placed A paper roll support shaft, in consideration of the insertion of the paper roll, the paper roll support shaft and the two support plates are of a split structure, the inner side of the two support plates is provided with a groove for placing the paper roll support shaft, and the groove is an opening Upward, resulting in the opening of the groove must be upward during use, and cannot be used in other orientations

At the same time, due to the relatively close distance between the two support plates, there is less movable space when the paper roll is loaded, and when the paper roll is large, it is difficult to load it, which limits the half-entry of large-size paper rolls.

At the same time, when the paper roll is being pulled, the problem of pre-tightening force needs to be considered, which leads to further complexity of the paper frame structure

[0003] At the same time, due to the unreasonable design of the traditional receipt printer, too many cables, it is not conducive to installation and maintenance, and because the structure of the traditional vertical printer is too rigid, it is not easy to troubleshoot when there is a paper jam, so it is very uncomfortable for users to use. convenient

The main reason is that compared with office printers, bill printers are used in a single object, and many manufacturers lack humanized design in terms of product structure.

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