JP2002284131A - Printer for label without base sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a printer for labels without base sheet that is capable of having a continuous body of labels without a base sheet drawn out from a supply roll of the continuous body of labels without base sheet, with the labels not being stuck again to the supply roll, that is, capable of keeping a tension constant between a platen roller and the supply roll of the continuous body of labels without base sheet. SOLUTION: In the printer for labels without base sheet equipped with a supply roll 12 of a continuous body of labels without base sheet wound with a continuous body 11 of labels without base sheet, and a printing portion 13 for printing on the continuous body of labels without base sheet while drawing out the continuous body of labels without base sheet from the supply roll of the continuous body of labels, a separating roll 15 is characteristically installed around the periphery of the supply roll 12 of the continuous body of labels without base sheet, at a position higher than a winding core 12a, thus guiding the continuous body of labels without base sheet to the printing portion by way of the separating roll.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a label printer without a backing paper.

[0002]

2. Description of the Related Art As shown in FIG. 3, a labelless printer (hereinafter referred to as a label printer) 1 is provided with a labelless continuous label (hereinafter referred to as a labelless label) 2 wound around a labelless printer. Using a body supply roll (hereinafter referred to as a label continuous body supply roll) 3, the label continuous body 2 is pulled out from the label continuous body supply roll 3 by the platen roller 4a of the printing unit 4, and printed on the label continuous body 2 by the print head 4b. Is performed, the printed label continuous body 2 is cut into an appropriate length by the cutter 5 and discharged to the outside of the printer housing 6.

In such a label printer 1, the label continuous body 2 pulled out from the label continuous body supply roll 3 is stretched by the tension roller 7 between the label continuous body supply roll 3 and the platen roller 4a. .

[0004]

By the way, in the continuous label supply roll 3 without the backing paper, the surface of the continuous label 2 is coated with a release agent, but the adhesive applied on the back side is under the adhesive. It is stuck to the surface of the label continuous body 2 with some adhesive strength.

[0005] Normally, the label is easily peeled off by the platen roller 4a. However, when the adhesive force is strong, the label continuous body 2 to be pulled out is not peeled off from the label continuous body supply roll 3 and is indicated by a two-dot chain line in FIG. As shown in
It will be in the state wound around the label continuous body supply roll 3. The printed label continuum 2 is conveyed by a fixed amount in the direction of the cutter 5 after printing, and cut by the cutter 5. Then, before printing is performed on the leading end of the next label continuous body 2, the leading end of the label continuous body 2 is returned by a predetermined amount by reversing the platen roller 4a. At that time, the drawn label continuum 2 may be bent and adhered again to the label continuity supply roll 3.

In the above state, that is, when the label continuum 2 is 2
As shown by the dashed line, when a printing operation is performed in a state where the label continuity is wrapped around the label continuity supply roll 3, the label continuity 2 is suddenly peeled off from the label continuity supply roll 3, and the platen roller 4 a And the tension between the continuous label supply roll 3 and the label continuous supply roll 3 is temporarily reduced, which causes elongation or contraction of printing.

[0007] The present invention has been made in view of such circumstances, and the label-free label continuous body pulled out from the label-free label continuous paper supply roll will not be attached to the label-free label continuous paper supply roll again. That is, an object of the present invention is to provide a label printer without a mount that can maintain a constant tension between a platen roller and a continuous roll of a continuous label without a mount.

[0008]

According to the present invention, there is provided a labelless printer according to the first aspect of the present invention, wherein the labelless continuous label is formed by winding the labelless continuous label. In a labelless label printer comprising a supply roll and a printing unit for drawing the labelless labelless continuous body from the paperless labelless label continuous supply roll and performing printing on the labelless labelless continuous body, the labelless labelless continuous body A peeling roller is installed at a position higher than the winding core around the supply roll, and the labelless continuous body is guided to the printing unit via the peeling roller.

According to the present invention, since the labelless continuous body is pulled out from the labelless continuous paper supply roll via the peeling roller, the continuous paperless labelless body supply roll is reliably peeled off by the peeling roller. In addition, even when the labelless continuous label body is once pulled back during printing, the labelless continuous label sheet is maintained at an interval from the labelless continuous label supply roll by the peeling roller.

According to a second aspect of the present invention, in the label printer according to the first aspect, ring-shaped ribs are formed at a plurality of positions in the axial direction of the peripheral surface of the peeling roller, and the peripheral surface of the rib is formed on the peripheral surface of the rib. The present invention is characterized in that the labelless continuous label body is brought into contact with the label continuous sheet body.

According to this invention, since the contact of the continuous body without label with the peeling roller is only on the peripheral surface of the plurality of ring-shaped ribs, the contact area is small and the continuous body without label is adhered to the peeling roller. There is no danger of being worn.

According to a third aspect of the present invention, in the label printer according to the second aspect, the ring-shaped rib is formed by a small-diameter ring-shaped rib and a large-diameter ring-shaped rib. A ring-shaped rib having a diameter is arranged for each of the plurality of small-diameter ring-shaped ribs.

According to the present invention, the label-free label continuous body that has passed through the peeling roller is deformed in a wave-like manner in the width direction by the large-diameter ring-shaped rib, whereby the rigidity increases, and the direction of the label-free label continuous body supply roll is increased. Is prevented from bending.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a labelless printer according to the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1 is a conceptual configuration diagram of a labelless printer according to the present invention, and FIG. 2 is a partial perspective view of a peeling roller installed in the labelless printer.

The label-less label printer (hereinafter referred to as a label printer) 10 is a label-less label-continuous supply roll (hereinafter referred to as a label-continuous supply) on which a label-free label continuous body (hereinafter referred to as a label continuous body) 11 is wound. roll)
12, a printing unit 13 that draws out the label continuum 11 from the label continuity supply roll 12, prints the surface of the label continuity 11, and a cutter 14 that cuts the printed label continuity 11, Further, a separation roller 15 and a tension roller 16 are provided between the continuous label supply roll 12 and the printing unit 13.

The label continuous body 11 has a release layer formed on the front surface and an adhesive applied on the back surface.
To form a continuous label supply roll 12. The printing unit 13 includes a platen roller 13a and a print head 13b.

The peeling roller 15 is longer than the width of the label continuous body 11, and has a small-diameter ring-shaped rib 15a and a large-diameter ring-shaped rib 15b on the peripheral surface at substantially equal intervals as shown in FIG.
Are formed, and the large-diameter ring-shaped ribs 15b are arranged every several small-diameter ring-shaped ribs 15a.

As shown in FIG. 1, the peeling roller 15 is installed at a position higher than the core 12a around the continuous label supply roll 12, and has a small-diameter ring-shaped rib 15a and a large-diameter ring-shaped rib 15a. The label continuous body 11 is guided by the ring-shaped rib 15b having a diameter.

The label printer 10 constructed as described above
Then, the label continuum supply roll 12 sends the label continuity 1
1 is drawn out, guided to the printing unit 13 via the peeling roller 15 and the tension roller 16, and the leading end is
a and the print head 13b.

When the platen roller 13a is rotationally driven, the label continuous body 11 is pulled out from the label continuous body supply roll 12 by the platen roller 13a, and a bar code, date, The price is printed. When printing is completed, the label continuous body 11 is further transported by a predetermined amount by the platen roller 13a, and is cut into a predetermined length by the cutter 14. Next, the platen roller 13a is rotated in the reverse direction, and the leading end of the label
Move back to b.

During this series of operations, the label continuous body 11 pulled out from the label continuous body supply roll 12 is guided by the peeling roller 15, and the label continuous body supply roll 12
From the substrate. At that time, the label continuum 1
1 is guided by the ring-shaped ribs 15a and 15b, so that the contact area with the peeling roller 15 is extremely small, and furthermore, the large-diameter ring-shaped rib 15b is deformed into a corrugated shape in the width direction, thereby increasing the rigidity. It will be guided without sticking on 15.

When the leading end of the label continuous body 11 is retracted to the print head 13b, the label continuous body 11 is bent, but the peeling roller 15 prevents the contact with the label continuous body supply roll 12. Can be.

[0024]

As described above, according to the labelless printer according to the first aspect of the present invention, the labelless continuous body is pulled out from the labelless continuous label supply roll via the peeling roller. The peeling roller ensures that the label-free continuous body supply roll is peeled off from the roll. In addition, even when the labelless continuous label body is once pulled back during printing, the labelless continuous label sheet is maintained at an interval from the labelless continuous label supply roll by the peeling roller.

Therefore, the label-free label continuous body between the label-free label continuous paper supply roll and the printing unit is always maintained at a constant tension, and stable printing can be obtained without causing extension or contraction of printing.

According to the labelless printer according to the second aspect of the present invention, the contact of the continuous labelless body with the peeling roller is only on the peripheral surface of the plurality of ring-shaped ribs. There is little possibility that the labelless continuous body is stuck to the peeling roller, and the labelless continuous body can be stably conveyed.

According to the label printer according to the third aspect of the present invention, the labelless continuous body passing through the peeling roller is formed in a wavy shape in the width direction by the large-diameter ring-shaped rib, thereby providing rigidity. Increase. Therefore, the labelless label continuous body is prevented from bending in the direction of the labelless continuous label supply roll.

[Brief description of the drawings]

FIG. 1 is a configuration diagram conceptually showing a label printer without a mount according to the present invention.

FIG. 2 is a perspective view partially showing a peeling roller used in the label printer without a mount according to the present invention.

FIG. 3 is a configuration diagram conceptually showing a conventional label printer without mount.

[Explanation of symbols]

10: label printer without mount, 11: continuous label without mount, 12: continuous roll of label without mount,
12a: winding core, 13: printing unit, 13a: platen roller, 13b: printing head, 14: cutter, 15
... Striping roller, 15a ... Small diameter ring-shaped rib, 15b
... Large-diameter ring-shaped rib, 16 ... Tension roller

Claims (3)

[Claims] 1. A continuous label-free label continuous supply roll wound with a continuous label-free continuous sheet, and a continuous label-free label continuous sheet is drawn from the continuous label-free continuous label-supply roll, and printing is performed on the continuous label-free label continuous sheet. In the labelless printer having a printing unit to be applied, a peeling roller is installed at a position higher than a winding core around the labelless continuous label supply roll, and the labelless continuous label is passed through the peeling roller. A label printer without a backing sheet, wherein the label printer is guided to the printing unit. 2. The method according to claim 1, wherein a ring-shaped rib is formed at a plurality of positions on the peripheral surface of the peeling roller in the axial direction, and the label-free continuous body is brought into contact with the peripheral surface of the rib. Label printer without backing as described in. 3. The method according to claim 1, wherein the ring-shaped rib is formed by a small-diameter ring-shaped rib and a large-diameter ring-shaped rib, and the large-diameter ring-shaped rib is arranged for each of the small-diameter ring-shaped ribs. The label printer without a mount according to claim 2, wherein