JP2002362796A - Label printing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a label printing device capable of easily replacing a label roll. SOLUTION: This label printing device is provided with a paper setting part 20 drawably mounted on a body frame 10. The paper setting part 20 is provided with an unwinding part 22 where the label roll Lr is mounted, and a taking-up part 27 for taking up the printing paper L1 unwound from the label roll Lr, a printing roller 15 is mounted at the body frame 10 side, and the printing paper L1 unwound from the label roll Lr is abutted on the printing roller Lr to be set by pressing the paper setting part 20 to the body frame 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a label printing apparatus provided with a paper set portion that can be pulled out of a main body frame.

[0002]

2. Description of the Related Art This type of label printing apparatus is provided in a stretch wrapping machine or other product processing apparatus, and it becomes necessary to replace a label roll when printing paper becomes empty.

[0003]

However, when exchanging labels, not only is the label roll attached to the unwinding section, but also
It is necessary to route the printing paper drawn from the label roll along a complicated path, so that it takes time to change the label. For unskilled operators,
At present, it is not easy to exchange labels.

Accordingly, it is an object of the present invention to provide a label printing apparatus in which the replacement of a label roll is simple and easy.

[0005]

In order to achieve the above object, the present invention relates to a label printing apparatus provided with a paper set portion capable of being pulled out from a main body frame, wherein a label roll is mounted on the paper set portion. And a take-up unit that takes up the print paper unwound from the label roll. A print roller is provided on the main body frame side.
In the present invention, when the paper setting unit is pushed into the main body frame, the printing paper unwound from the label roll is set in contact with the printing roller.
Therefore, it is not necessary to route the printing paper on a narrow path or a complicated path.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a side view in which a part of the label printing apparatus is cut away. As shown in FIG. 1, the label printing apparatus winds up the printing paper L1 from the label roll Lr attached to the unwinding section 22 along the printing roller 15 at the lower left of the drawing, and winds the printing paper L1 on the winding section 27. like,
The label L is issued.

The printing paper L1 unwound from the label roll Lr is supplied to first and second guide rollers 23 and 24.
Is guided toward the printing roller 15. The drive roller 14 is provided below the second guide roller 24, and the printing paper L 1 is sandwiched between the drive roller 14 and the second guide roller 24 and sent to the print roller 15. The second guide roller 24 is driven by a lower driving roller 14 by a spring force of a coil spring (not shown).
It is always biased toward. A rotational force from a drive source is applied to the print roller 15.

Above the print roller 15, a print head 25 for performing predetermined printing on the print paper L1 is provided. The print head 25 is urged toward the print roller 15 by a spring (coil spring) not shown. After the printing, the label L on the upper surface is peeled off from the backing sheet L2 by the printing paper L1 being bent sharply to the lower right by the front peeling shaft 16, and the label L is issued. On the other hand, the backing sheet L2 from which the label L has been peeled off is taken up by the take-up section 27 via the third guide roller 26.

As shown in FIG. 2, the apparatus comprises a main body frame 10 and a paper setting section 20. A guide rail 11 is provided on an upper portion of the main body frame 10. A sliding portion 21 that engages with the guide rail 11 is provided on the upper portion of the paper setting portion 20, and the paper setting portion 20 can be pulled out from the main body frame 10 as shown in FIG.

The unwinding section 2 is provided in the sheet setting section 20.
2, each guide roller 23, 24, 26, print head 25
And a winding unit 27. The print head 25 is disposed closer to the drawing side X1 than the print paper L1. On the other hand, the main body frame 10 is provided with the driving roller 14, the printing roller 15, and the peeling shaft 16.

In order to replace the label roll Lr, FIG.
As shown in FIG. 5, the paper setting unit 20 is mounted on the main body with the label roll Lr attached to the unwinding unit 22 and the leading end of the printing paper L1 pulled out from the label roll Lr attached to the winding unit 27. Push in the closing direction X on the frame 10 side. By the pushing, the printing paper L1 moves toward the drive roller 14, the printing roller 15, and the peeling shaft 16, and as shown in FIG.
5 comes into contact with the back surface of the printing paper L1.

Further, when the paper setting section 20 is pushed in the closing direction X, the second guide roller 24 escapes upward due to the elasticity of the coil spring and rides over the printing roller 15 and the driving roller 14, and when the pushing is completed, FIG. As shown in FIG. 7, the printing paper L1 is sandwiched between the second guide roller 24 and the driving roller 14 by the spring force of the coil spring, and the printing head 25 is moved by the spring force of the another coil spring. Is pressed into contact with the print roller 15 through the contact.

When the paper set unit 20 is pushed into the main body frame 10 as described above, the print paper L1 unwound from the label roll Lr is sandwiched between the print head 25 and the print roller 15, and , And the printing paper L1 is set in the label printing device, so that the replacement of the label roll Lr is significantly facilitated.

Note that, as shown in FIG.
By pressing the 0 into the main body frame 10, the winding unit 27A rotates upward and moves, so that the device becomes compact. When the print head 25 is pulled out, the print head 25 may be released upward as shown by a virtual line, and after completion of the pushing, the posture may be changed to a press-contact posture pressed against the print roller 15 as shown by a solid line. . Further, for example, the print head 25 is connected to the main body frame 10 via a hinge.
The print head 25 can be flipped up around the hinge at the time of pulling out, and can be retracted to the retracted position on the side with respect to the moving path of the paper setting unit (for details, see FIG. See Japanese Patent Application No. 2000-202118).

As described above, the preferred embodiments have been described with reference to the drawings. However, those skilled in the art can easily envisage various changes and modifications within the obvious scope by referring to the present specification. Would. For example, the present invention only needs to be provided with a label printing device. For example, the present invention is also applied to a system having an automatic label sticking device and a system having a weighing device. Accordingly, such changes and modifications are to be construed as being within the scope of the invention as defined by the appended claims.

[0016]

As described above, according to the present invention,
When the paper set section is provided so that it can be pulled out with respect to the main body frame and the paper set section is pushed into the main body frame,
The printing paper unwound from the label roll comes into contact with the printing roller, and the printing paper is set in the label printing device.
Not only can the label roll be exchanged in a short time, but also the exchange of the label roll becomes extremely easy.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing a label printing apparatus according to an embodiment of the present invention.

FIG. 2 is a side view showing the label printing device in a pulled-out state.

FIG. 3 is a side cross-sectional view showing the label printing apparatus during pressing.

FIG. 4 is a side sectional view showing a label printing device according to a modification.

[Explanation of symbols]

 10: body frame 20: paper setting section Lr: label roll 22: unwinding section L1: printing paper 27: winding section 15: printing roller 25: printing head

Claims (3)

[Claims] 1. A label printing apparatus provided with a paper setting portion capable of being pulled out from a main body frame, wherein the paper setting portion has an unwinding portion for mounting a label roll, and a printing paper unwound from the label roll. And a print roller on the main body frame side. When the paper setting section is pushed into the main body frame, the print paper unwound from the label roll hits the print roller. Label printing device that can be set in contact. 2. The paper setting unit according to claim 1, wherein the paper setting unit has a print head, a label roll is mounted on the unwinding unit, and the leading end of the printing paper unwound from the label roll is wound up. A label printing device in which the print head is arranged closer to a drawer side than the print paper in a state where the print head is mounted on the printing paper. 3. The label printing apparatus according to claim 1, wherein the printing head is pressed against the printing roller via the printing paper when the pressing of the paper setting unit is completed.