JPH054764A - Paper take-up device - Google Patents

Abstract

(57) [Summary] [Purpose] Allows paper to be set on the take-up reel quickly and without error. A take-up reel (11) has a hollow part (13) inside, and a paper winding surface (12) of the take-up reel (11) has a large number of holes penetrating the hollow part (13). (1
4) is provided, air suction means (21) for making the hollow portion (13) of the take-up reel (11) a negative pressure is provided, and further, conveying means (31) capable of sending the paper to the take-up reel (11).
To provide.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper winding device for winding paper (roll paper).

[0002]

2. Description of the Related Art For example, a printer using roll paper is generally equipped with a paper winding device for winding the roll paper.

FIG. 3 shows a schematic structure of a conventional paper winding device. In the figure, 1 is a printer main body, and 11A is a take-up reel. The take-up reel 11A is detachably attached to the engaging portion 2 of the printer body 1. A gear 17 is attached to the take-up reel 11A, and the gear 17 meshes with a drive gear (not shown) when the take-up reel 11A is attached to the printer body 1 to transmit rotational power. ing.

However, when the paper (roll paper) P is set on the take-up reel 11A, the worker takes the take-up reel 1
1A is removed from the printer body 1, the leading end of the paper P is inserted into the insertion portion 19 of the reel 11A, and then the paper winding surface 12 is slightly wound, and in that state, the take-up reel 1
1A is attached to the printer body 1.

[0005]

By the way, in the above-described conventional paper take-up device, since the operator manually sets the paper P on the take-up reel 11A, the paper P is wound around the take-up reel 11A, for example. The reel 11A may be set in the opposite direction or may be set diagonally, so that the reel 11A may not be correctly set at a predetermined position, and a paper jam may occur.

Further, it takes time and effort to remove and attach the reel 11A every time the paper P is set on the take-up reel 11A.

In view of the above circumstances, an object of the present invention is to provide a sheet winding device which can set a sheet on a take-up reel quickly and without error.

[0008]

According to the present invention, there is provided a paper winding device having a take-up reel which can be rotationally driven in a predetermined direction while a paper is wound around a paper winding surface, wherein the take-up reel is hollow inside. A plurality of holes penetrating into the hollow portion on the paper winding surface of the take-up reel, and air suction means for applying a negative pressure to the hollow portion of the take-up reel. Is provided with a transporting means capable of feeding the tape to the take-up reel.

[0009]

In the present invention, when the paper (roll paper) is set on the take-up reel, the air suction means is driven to make the hollow portion of the take-up reel a negative pressure. Then, the external air is sucked into the hollow portion through the holes formed in the paper winding surface of the take-up reel. Then, in that state, when the sheet is sent to the take-up reel by using the conveying means, the leading end of the sheet is sucked to the sheet take-up surface of the take-up reel by the air suction action through the holes.

The paper is automatically set by rotating the reel in a predetermined direction while the front end of the paper is attached to the paper winding surface of the take-up reel.

This makes it possible to set the paper on the take-up reel quickly and without error.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings.
The paper take-up device according to the present embodiment is applied to a printer, and includes a take-up reel 11, an air suction means 21, and a conveying means 31, as shown in FIGS. The same components as those shown in FIG. 3 are designated by the same reference numerals, and the description thereof will be omitted or simplified.

The take-up reel 11 has a paper take-up surface 12 formed on the outer peripheral surface thereof and a hollow portion 13 formed therein. On the paper winding surface 12 of the winding reel 11,
A large number of holes 14 penetrating the hollow portion 13 are provided.

The air suction means 21 is used for the take-up reel 1.
It is a means for making the hollow portion 13 of No. 1 have a negative pressure. In the present embodiment, the air suction means 21 is composed of a guide member 23 provided on the open end 15 side of the take-up reel 11 and a suction fan 22 arranged close to the guide member 23.

Further, the conveying means 31 is means for feeding the paper (roll paper) P to the take-up reel 11.
In the present embodiment, the conveying means 31 is configured to include a feed roller 32, a pinch roller 33 pressed against the feed roller 32, and a drive motor (not shown) for rotating the feed roller 32 in the arrow direction. .. Then, when the drive motor is driven to rotate the feed roller 32, the paper P nipped between the feed roller 32 and the pinch roller 33 is taken up by the take-up reel 1
It is sent toward 1.

At the other end 16 of the take-up reel 11,
A gear 17 for transmitting rotational power is attached.

Next, the operation will be described. Take-up reel 1
When setting the paper (roll paper) P on the sheet No. 1, the suction fan 22 of the air suction means 21 is driven to make the hollow portion 13 of the take-up reel 11 a negative pressure. Then, the external air AR is supplied from the holes 14 provided in the paper winding surface 12 of the take-up reel 11 in large numbers.
Are sucked into the hollow portion 12.

Next, in this state, the sheet P is sent to the take-up reel 11 by using the conveying means 31, and the leading end of the sheet is sucked by the air through the holes 14 to take-up reel 1.
It sticks to the paper winding surface 12 of 1.

The paper P is automatically set by rotating the reel 11 in the direction of the arrow while the front end of the paper is attached to the paper winding surface 12 of the take-up reel 11.

According to this embodiment, however, the take-up reel 11 has a hollow portion 13 therein, and the paper take-up surface 12 of the take-up reel 11 has a large number of holes 14 penetrating the hollow portion 13. Is provided, the air suction means 21 for making the hollow portion 13 of the take-up reel 11 a negative pressure is provided, and the transport means 31 capable of feeding the paper P to the take-up reel 11 is provided. It is possible to set the take-up reel 11 quickly and without error.

According to the above embodiment, the air suction means 21 is composed of the suction fan 22 and the like, but any structure may be adopted as long as the hollow portion 13 of the take-up reel can be made negative pressure.

Further, although the paper winding device is applied to the printer, it may be applied to other industrial equipment (register, for example). Also, it can be used alone.

[0023]

According to the present invention, the take-up reel has a hollow portion inside, and the winding surface of the take-up reel is provided with a large number of holes penetrating the hollow portion. Since the air suction means for making the hollow portion a negative pressure is provided and further the conveying means capable of feeding the paper to the take-up reel is provided, the paper can be set on the take-up reel quickly and without error. ..

[Brief description of drawings]

FIG. 1 is a diagram showing a main part of an embodiment of the present invention.

FIG. 2 is a sectional view taken along line aa of FIG.

FIG. 3 is a diagram showing a schematic configuration of a conventional paper winding device.

[Explanation of symbols]

 11 take-up reel 12 paper take-up surface 13 hollow portion 14 hole 21 air suction means 31 conveying means

Claims (1)

Claim: What is claimed is: 1. A paper take-up device having a take-up reel capable of being rotationally driven in a predetermined direction while a paper is wound on a paper take-up surface, wherein the take-up reel is internally provided with a hollow portion. According to the above configuration, a large number of holes penetrating the hollow portion are provided on the paper winding surface of the take-up reel, air suction means for providing a negative pressure in the hollow portion of the take-up reel is provided, and the paper is A sheet winding device, characterized in that it is provided with a conveying means capable of being fed to a winding reel.