JP2574956B2 - Paper take-up device - Google Patents

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 a continuous paper sent through a process such as printing.

[0002]

2. Description of the Related Art Generally, a paper take-up device in which a number of labels are attached to a mount as long continuous paper, printed on these labels, peeled off, and then the mount is wound up.
And journal paper for POS terminals, ECR, etc.
A paper winding device or the like for winding the recorded long paper is configured as shown in FIGS. 7 to 10. First, a take-up core 1 connected to a drive motor provided in a processing section such as a printing section is provided.
The flange 3 which guides the side edge of this is attached. The winding core 1 is basically a shaft having a circular cross section, and a cutout portion 4 cut out along the axial direction is formed on an outer peripheral portion thereof.

[0003] The flange 3 is formed with a through groove 5 extending in a radial direction from the center of rotation of the winding core 1 to the cutout 4 side with a predetermined length. A paper retainer 6 having a cross-sectional shape that is formed along the axial direction of the take-up core 1 and fitted into the position of the cutout 4 so as to form a circular shape as a whole slides into the through groove 5. Mounted freely. That is, the paper presser 6 is held so as to always maintain a state parallel to the winding core 1.

[0004] In such a configuration, a state in which winding of the continuous paper 2 is started will be described with reference to FIG. First, FIG.
As shown in (a), the direction of the winding core 1 is determined so that the paper presser 6 is positioned below the winding core 1. Thus, the paper presser 6 is positioned on the outer peripheral side of the through groove 5 by its own weight, and the interval between the take-up core 1 and the paper presser 6 is the maximum dimension. In this state, the leading end of the continuous paper 2 is inserted between the take-up core 1 and the paper presser 6.

As shown in FIG. 10B, the winding core 1 is driven and rotated counterclockwise with the leading end of the continuous paper 2 inserted to some extent. By this rotation, the paper presser 6 scoops under the continuous paper 2 and reaches the position shown in FIG. 10C, and the paper presser 6 moves toward the center of the through groove 5 due to its own weight and the resistance force from the continuous paper 2. That is, it moves until it is located at the notch 4 of the winding core 1. By the movement of the paper press 6, the continuous paper 2 is pressed by the take-up core 1 and the paper press 6, and the continuous paper 2 is wound around the paper press 6. Further, when the rotation of the take-up core 1 progresses to reach the position shown in FIG. 10D, the continuous paper 2 is wound around the take-up core 1 as well. The continuous paper 2 is wound around the central shaft portion having a substantially circular shape as a whole.

[0006] In this manner, the continuous paper 2 is wound around the winding core 1. When the winding diameter approaches the outer diameter of the flange 3, the winding is completed and the wound continuous paper 2 is wound. Core 1
Remove it by pulling it out in the axial direction.

In order to automatically wind the continuous paper 2 as described above, the winding core 1 is continuously rotated, and the paper presser 6 is moved by the centrifugal force and its own weight as shown in FIG. a)
When the state shown in (1) is reached, a continuous paper 2 is fed in, and a detection unit for detecting that the continuous paper 2 has reached a predetermined position is provided. A signal from the detection unit drives a solenoid or the like to control the paper press. 6 is forcibly moved to the paper holding state and stopped.

[0008]

As described above, in the conventional structure, since the paper presser 6 moves along the through groove 5, the sliding surface thereof wears out when used for a long period of time, and the sliding property is increased. There is a problem that it becomes worse. Furthermore, since the paper presser has a structure that slides through the through groove, it is structurally difficult to ensure smooth slidability, and there is a possibility that the paper holder will stop during sliding or will not slide. Yes,
Failure to achieve the intended purpose.

[0009]

SUMMARY OF THE INVENTION A winding core is provided at least at one end and has a cutout along the axial direction on an outer peripheral surface thereof, and is provided with a winding core which is rotationally driven by a driving unit. And a paper press arm to which a paper press positioned in the cutout portion of the winding core is fixed on the free end side and is rotatably attached to a rotating shaft provided at a position deviated from the above.

[0010]

[Function] Since the paper presser is attached to the paper presser arm rotatably mounted on the rotating shaft, the movement of the paper presser arm close to and away from the winding shaft is smooth. This makes it possible to ensure that the continuous paper fed is wound around the winding core, and that the distance between the winding core and the paper presser when inserting continuous paper is increased. This can facilitate the operation of inserting continuous paper.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to FIGS. First, a take-up core 7 connected to a drive motor provided in a processing unit such as a printing unit is provided, and one end of the take-up core 7 has a flange 9 for guiding a side edge of the continuous paper 8.
Is attached. The winding core 7 is basically a shaft having a circular cross section, and a cutout portion 10 cut out along the axial direction is formed on the outer peripheral portion thereof.

Next, the flange 9 is expanded at an angle of about 45 degrees with respect to the rotation center of the winding core 7 and has a recess 13 having a straight edge 11 and an arc-shaped edge 12.
Are formed. A rotating shaft 14 is provided at one end on the outer peripheral side of the concave portion 13, that is, at a position deviated from the rotation center of the winding core 7, and one end of a paper pressing arm 15 is rotatably attached to the rotating shaft 14. ing. At the free end side of the paper holding arm 15, an end of a paper holding member 16 which is parallel to the winding core 7 and located in the cutout portion 10 and has a substantially circular cross section together with the winding core 7 is fixed. ing.

In such a configuration, when winding the continuous paper 8, the continuous paper 8 is inserted into a processing unit such as a printing unit and the paper is fed. Thereby, the continuous paper 8 passes through the printing unit and is discharged in the direction of the winding core 7. When the operator determines that the continuous paper 8 has been discharged to the extent that it can be wound on the winding core 7, as shown in FIG. 4A, the position where the paper presser 16 is separated from the winding core 7 by its own weight, that is, Then, one end of the continuous paper 8 is inserted between the take-up core 7 and the paper presser 16 in a state where the distance between them is widened. Then, when the leading end of the continuous paper 8 has been fed by an amount sufficient to wind around the paper presser 16, the paper feeding is started again. Now
It is assumed that the paper feed mechanism and the rotation operation of the winding shaft 7 are continuous. Thereby, the take-up shaft 7 also rotates, and the paper presser 16 scoops the continuous paper 8 from below in the state of FIG.
Further, in the state of FIG.
And the paper presser 16. In this state, when the rotation of the take-up core 7 further proceeds, the state shown in FIG. 4D is reached, and the continuous paper 8 is wound from the outer periphery of the paper presser 16 to the outer periphery of the take-up core 7. By continuing this, the continuous paper 8 is wound around the winding core 7 and the paper presser 16.

In the embodiment, a mechanism for driving and stopping the paper holding arm 15 is added, and a position detecting mechanism for the continuous paper 8 is provided to provide the continuous paper 8.
May be automatically performed.

Further, when receiving the continuous paper 8,
When the rotating shaft 14 of the paper press arm 15 is located at the lowermost position, the interval between the paper press 16 and the take-up core 7 is large, and it is possible to set the timing for inserting the continuous paper 8 to this position. It is desirable. Further, even if the take-up core 7 is continuously rotated, the paper pressing arm 15 abuts on the linear edge portion 11 of the concave portion 13, so that the portion serves as a stopper and does not rotate excessively.

Next, a second embodiment of the present invention will be described with reference to FIGS. The same parts as those in the above embodiment are denoted by the same reference numerals, and the description is omitted. The paper retainer 16 of the present embodiment is a small-diameter wire-shaped one, and the cutout portion 10 formed in the winding core 7 is formed in a groove shape enough to fit the wire-shaped paper retainer 16. It is. Therefore, almost the entire circumference of the winding core 7 becomes a contact portion of the continuous paper 8, and the center portion of the winding can be maintained in a circular shape.

[0017]

As described above, according to the present invention, a winding core is provided which is rotatably driven by a driving unit, having a flange provided on at least one end and a cutout along the axial direction on the outer peripheral surface. Since the paper press arm, which is rotatably attached to the rotation shaft provided at a position deviated from the center of rotation of the core and is provided at the free end side, the paper press positioned at the cutout portion of the winding core is provided. Since the paper presser is attached to the paper presser arm that is rotatably mounted on the rotating shaft, the movement of the paper presser arm close to and away from the winding shaft is smooth, and the motion of the paper presser arm is poor even after long use. This makes it possible to reliably wind the continuous paper fed onto the take-up core, and to measure the distance between the take-up core and the paper presser for introducing the continuous paper. The greatly it is possible to have an effect referred to can facilitate the insertion operation continuous paper.

[Brief description of the drawings]

FIG. 1 is a front view showing a first embodiment of the present invention.

FIG. 2 is a side view thereof.

FIG. 3 is a perspective view thereof.

FIG. 4 is a front view showing a process of winding the continuous paper.

FIG. 5 is a front view of the second embodiment of the present invention during standby for paper winding.

FIG. 6 is a front view of a state in which the paper is wound.

FIG. 7 is a front view showing an example of the related art.

FIG. 8 is a side view thereof.

FIG. 9 is a perspective view thereof.

FIG. 10 is a front view illustrating a process of a continuous sheet winding operation.

[Explanation of symbols]

 7 Take-up core 9 Flange 10 Notch 14 Rotation axis 15 Paper press arm 16 Paper press

Claims (1)

(57) [Claims] 1. A winding core driven by a drive unit having a notch formed in at least one end and having a notch along an axial direction on an outer peripheral surface thereof, and a position deviated from a rotation center of the winding core. And a paper press arm fixed to a free end side of the take-up core in the cutout portion, the paper press arm being rotatably attached to a rotating shaft provided in the paper take-up core.