Paper shaft mechanism with adjustable outer diameter

Abstract

The utility model discloses a paper shaft mechanism with an adjustable outer diameter. The paper shaft mechanism comprises a paper shaft main body and an adjusting block, and the adjusting block can be clamped on the paper shaft main body and can be adjusted to different positions when being clamped on different teeth. When printing paper with the tube core diameter of 10 mm is installed, the adjusting block can be not installed, and at the moment, the maximum outer diameter of the paper shaft body is 10 mm. When printing paper with the tube core diameter of 12 mm is installed, the adjusting block can be installed and clamped in a clamping groove of the paper shaft body mark 12, and at the moment, the maximum outer diameter of the paper shaft assembly is 12 mm. When printing paper with the pipe core diameter of 14 mm is installed, the adjusting block can be installed and clamped in a clamping groove of the paper shaft body mark 14, and at the moment, the maximum outer diameter of the paper shaft assembly is 14 mm. The three gears of 10 mm, 12 mm and 14 mm of the outer diameter of the paper shaft can be adjusted, the structure is simple, and reliability is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of printer, especially to a paper shaft mechanism with adjustable outer diameter. BACKGROUND

[0002] In modern society, printers are used more and more widely. In the field of medical laboratories, printers are also widely used. The use of printers makes the recording of experimental data more convenient and accurate. The printing paper used by the printer needs to be placed on the printer with the tube core passing through the shaft. The diameters of the printing paper and the tube core on the market vary, usually 10mm, 12mm and 14mm. Most of the existing printers have a fixed size of the paper shaft, which results in that the paper shaft matched with the printer is not suitable for printing paper with different tube core diameters. SUMMARY

[0003] In order to solve the problems in the prior art, the utility model provides a paper shaft mechanism with adjustable outer diameter, which can adjust the outer diameter of the paper shaft according to the different tube core diameters of the purchased printing paper, so that it can adapt to most printing paper on the market.

[0004] To achieve the above purpose, the utility model provides the following technical scheme: when installing the printing paper, the adjusting block of the paper shaft can be adjusted according to the actual tube core diameter of the printing paper, so that it can adapt to the tube core of the printing paper.

[0005] Preferably, when installing the printing paper, the actual tube core diameter of the printing paper is measured first, and then the adjusting block is moved according to the tube core diameter, so that the outer diameter of the paper shaft matches the tube core diameter.

[0006] The utility model has the advantages that the adjusting block is fixed on the paper shaft by buckling, the paper shaft has corresponding numbers, when the adjusting block is buckled at 12 or 14, the maximum outer diameter of the corresponding paper shaft assembly is 12mm or 14mm. When installing the printing paper with a tube core diameter of 10mm, the adjusting block is not installed, and the outer diameter of the paper shaft is 10mm at this time. This structure is simple and reliable, and makes it more convenient for the operator to use. BRIEF DESCRIPTION OF DRAWINGS

[0007] Figure 1 is the front view of the utility model.

[0008] Figure 2 is the top view of the utility model.

[0009] Figure 3 is the left view of the utility model.

[0010] Figure 4 is the perspective view when the outer diameter of the utility model is 14mm.

[0011] Figure 5Is the utility model's outer diameter 12mm time's perspective drawing.

[0012] Figure 6 Is the utility model's explosion map.

[0013] In the drawing: 1, paper shaft main body; 2, adjusting block. DETAILED DESCRIPTION

[0014] The utility model will be further explained in detail in combination with the drawings and by examples, and the following examples are explanatory of the utility model, and the utility model is not limited to the following examples.

[0015] Please refer to Figures 1 to 6 The utility model provides an embodiment: a paper shaft mechanism that can adjust outer diameter, it is characterized by including paper shaft main body (1), adjusting block (2), paper shaft main body (1) is connected with adjusting block (2) through buckle, every fin on paper shaft main body (1) corresponds 2 adjusting blocks (2), adjusting block (2) can be adjusted and moved on paper shaft main body (1).

[0016] Working principle: adjusting block (2) can be selected and installed or adjusted and installed on paper shaft main body (1), according to adjusting block (2) limit pawl is clamped in paper shaft main body (1) corresponding different position, reaches the effect of adjusting paper shaft outer diameter.When installing tube core diameter 10mm printing paper, adjusting block (2) can not be installed, at this time, the maximum outer diameter of paper shaft main body (1) is 10mm.When installing tube core diameter 12mm printing paper, adjusting block (2) can be installed and clamped in the clamping groove of paper shaft main body (1) mark 12, at this time, the maximum outer diameter of paper shaft assembly is 12mm.When installing tube core diameter 14mm printing paper, adjusting block (2) can be installed and clamped in the clamping groove of paper shaft main body (1) mark 14, at this time, the maximum outer diameter of paper shaft assembly is 14mm.

[0017] For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the examples should be regarded as exemplary and non-limiting, and the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A paper shaft mechanism with adjustable outer diameter, characterized by: Including paper shaft body (1), adjusting block (2), the paper shaft body (1) with adjusting block (2) are connected through buckle, every fin on the paper shaft body (1) corresponds 2 adjusting blocks (2), the adjusting block (2) can be adjusted and moves on the paper shaft body (1).

2. A paper roll mechanism with adjustable outer diameter according to claim 1, characterized in that: When installing the printing paper with 10mm diameter tube core, the adjusting block (2) can not be installed, at this time the maximum outer diameter of paper shaft body (1) is 10mm, when installing the printing paper with 12mm diameter tube core, the adjusting block (2) can be installed and buckled in the card slot of paper shaft body (1) mark 12, at this time the maximum outer diameter of paper shaft assembly is 12mm, when installing the printing paper with 14mm diameter tube core, the adjusting block (2) can be installed and buckled in the card slot of paper shaft body (1) mark 14, at this time the maximum outer diameter of paper shaft assembly is 14mm.

3. A paper roll mechanism with adjustable outer diameter according to claim 1, characterized in that: The adjusting block (2) can be selected and installed or adjusted on the paper shaft body (1), according to the adjusting block (2) limiting pawl buckling in the corresponding different position of paper shaft body (1), the effect of adjusting the outer diameter of paper shaft is achieved.

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