JPH0314444A - Label printing apparatus - Google Patents

Abstract

PURPOSE:To exert a constant tension and torque on a backing paper, independently of the number of printed labels, in order to stabilize a printing position by providing downstream with respect to a separating plate a pair of feed rolls which has on the outer periphery a projection longer than the width of the backing paper. CONSTITUTION:Each time a label is printed by driving a step motor 10 and a DC motor 11 with a label backing paper held between feed rolls 14, and 142 provided downstream with respect to a guide roll 13 for a separating plate 7, the backing paper is cut off by a projection 15 formed on the outer periphery of the feed roll 141. The projection 15 is extended widthwise of the peripheral surface of the feed roll 14, and longer than the width of the backing paper 2. Therefore, each time the feed rolls 14, and 142 roll through one revolution, the backing paper 2 is cut off by the edge of the projection 15 which presses the backing paper into contact with the feed roll 142. The backing paper 2 is cut into paper pieces 16 which are dropped into a box 19 from an opening formed in an outer case 17. As an alternative, the projection 15 may be split into sections 151 - 15n to form perforation 20 in the backing paper 2.

Description

[Detailed description of the invention] Industrial application field The present invention prints on a label attached to a strip-shaped release mount,
The present invention relates to a label printing device that transports a release liner via an acute-angled side of a release plate, and issues a printed label by peeling it off from the release liner using the release plate.

2. Description of the Related Art This type of label printing apparatus is constructed as shown in FIG. 6(a). As shown in FIG. 6(b), on the wrapping body l, labels 3, 3, .
A printing paper 4 with a pasted on it is wound. This wrapping body 1
The peeling paper 2 with the label pulled out from the head 5
and the platen roll 6, and is stretched over a take-up reel 8 via a peeling plate 7. An ink ribbon 9 may be interposed between the head 5 and the release mount 2.

IO is a step motor 1 that drives the platen roll 6;
1 is a DC motor that drives the take-up reel 8.

The platen roll 6 is rotationally driven to transfer the label-attached release mount 2 toward the release plate 6, and the take-up reel 8 winds up the release mount 2 and transports it in the winding direction A. The label is peeled off from the release mount 2 by the tension acting on the release mount 2 as it passes through the sides and is issued.

The label issued at this time is label 3 shown in FIG. 6(b). The trailing edge is stuck to the release mount 2 as shown in the figure. The user should check the label 3 issued in this way.
. The front edge of the label 3o is picked up by hand, and the trailing edge portion of the label 3o is peeled off from the release mount 2 by lifting diagonally upward and taken out.

Problems to be Solved by the Invention In such a conventional configuration, the winding torque of the release liner 2 differs depending on whether the diameter of the take-up reel 8 is small or large, and the torque of the release liner 2 changes, causing printing problems. Misalignment occurs.

Furthermore, when removing the rolled-up release mount 2 from the take-up reel 8, it is necessary to pull out the U-shaped pin l2 that locks the starting end of the release mount 2 to the take-up reel 8. However, since the U-shaped pin l2 is pressed against the circumferential surface of the take-up reel 7 by the rolled-up peeling paper 2,
A large operating force is required to pull out the U-shaped pin l2, and the operation is sometimes difficult.

SUMMARY OF THE INVENTION An object of the present invention is to provide a label printing machine with good operability and without deviation of printing position even when a large number of labels are issued.

Means for Solving the Problems The label printing device of the present invention sequentially prints printing paper, on which labels are pasted at predetermined intervals on a strip-shaped release mount, between a head and a platen roll, a release plate, and a pair of feed rolls. The platen roll and the feed roll are rotated to transport the label-attached release liner toward a release plate, and when passing through the release plate, the label is peeled from the release liner, and the feed roll A protrusion extending in the width direction and having a length longer than the width of the release mount is formed on the outer periphery of the release mount. be a sign.

Further, the present invention is characterized in that protrusions are formed on the circumferential surface of the feed roll and arranged in the width direction thereof, so that paper pieces of the release liner are stored in a lined state.

Effect: According to this configuration, when the release paper sent in the direction of recovery by the feed roll passes through the feed roll, the projections formed on the outer periphery of the feed roll bite into the release paper, causing cuts or intermittent cuts. enters. The collected release paper is stored in this state.

Embodiments Hereinafter, embodiments of the present invention will be explained based on FIGS. 1 to 5. Components having the same functions as those in FIG. 6 showing the conventional example will be described with the same reference numerals.

FIG. 1 shows a label printing device of the present invention. The release mount 2 is sandwiched between the release plate 7, the guide roll 13, and the feed rolls 14s and 14■. Drive step motor lO and DC motor l1 to label? The protrusion l5 formed on the outer periphery of the feed roll 141 cuts the release mount 2 every time it is issued.

As shown in FIG. 2, the protrusion 15 is formed on the circumferential surface of the feed roll 141, extending in the width direction of the feed roll 14, and having a length equal to or longer than the width of the release mount 2.

Therefore, the feed roll 141. 14■ Peel off mount 2
When transporting with support, the feed rolls 14, , 14
Each time 2 rotates once, the peeling mount 2 is pressed against the feed roll 14 by the protrusion 15, and the tip thereof is cut off.

The cut release mount 2 becomes paper pieces 16 and falls into the box l9 through an opening 18 formed in the outer case l7. The box 19 is configured so that it can be pulled out to the imaginary line position by engaging the back side of the outer case l7, and when the number of labels issued increases and the accumulated paper pieces l6 increase,
The box l9 is pulled out and the pieces of paper l6 accumulated therein are removed.

The peeling paper 2 is wound up using a pair of feed rolls l4■, 14.
Since the paper is sandwiched by the rollers 2 and transported in the winding direction A, which is the same as before, the tensilon and torque acting on the release liner 2 are constant regardless of the number of labels issued. Therefore, the printing position is stable.

In the above embodiment, the platen roll 6 and the feed roll 141
, 14. Although these are specifically driven by the step motor lO and the DC motor 11, the same applies even if they are driven by a single power source.

Furthermore, although the protrusion l5 shown in FIG. 2 is constructed without any inclination, it can also be constructed with an angle α as shown in FIG.

In the above embodiment, the protrusion 15 was continuous in the width direction of the feed roll 141, but instead of the protrusion 15, divided protrusions 15, to 15, as shown in FIG. 2 is configured such that cuts 20 are made at predetermined intervals in the feed roll 141. The same effect can be obtained by arranging that the peeling mount 2 having the cut 20 made after passing through the line 14 is stored in the box 13 while being folded in a zigzag shape as shown in FIG.

Effects of the Invention As described above, according to the present invention, since the printing paper is conveyed by sandwiching the release liner with a pair of feed rolls provided after the release plate, even if the number of labels to be issued increases, the release liner will not be affected. The tension a and torque do not fluctuate, and the printing position is stable.

When the feed roll passes through the release liner, the protrusions formed on the circumferential surface of the feed roll bite into the release liner and cut it into a predetermined length, so the paper pieces of the release liner cut to a predetermined length are stacked and stored. This eliminates the space occupied by the roll-shaped release mount, which is required in the conventional case where the release mount is wound into a roll, making it possible to downsize the device. . In addition, since the only operation required is to remove the paper pieces of the cut release mount, the conventional work of pulling out the U-shaped pins can be eliminated, and operability is improved.

Furthermore, if protrusions arranged in the width direction are formed on the circumferential surface of the feed roll, cuts can be made in the release liner in the width direction when passing through the feed roll, and these cuts can You can also save space by folding and stacking them.

[Brief explanation of drawings]

? 1 is a longitudinal sectional view of one embodiment of the label printing device of the present invention, FIG. 2 is a plan view of the main part of FIG. 1, FIGS. 3 and 4 are plan views of different embodiments, and FIG. This figure is a perspective view of a main part of the embodiment shown in FIG. 4, and FIG. 6 is a general configuration diagram of a conventional label printing apparatus. 2...Peelable mount, 3o, 3t, 3■...Label, 5
... head, 6 ... platen roll, 7 ... peeling plate, 13 ... guide roll, 141. 14 ■...
・Feed roll, 15... protrusion, 1B... piece of paper, l7
...Exterior case, l8...opening, l9...box.

Claims (1)

[Scope of Claims] 1. A printing paper with labels pasted at predetermined intervals on a strip-shaped release mount is passed between the head and a platen roll, a release plate, and a pair of feed rolls in order, and then The platen roll and the feed roll are rotated to transport the label-attached release liner toward the release plate, and as it passes through the release plate, the label is peeled off from the release liner, and the label is transferred to the circumferential surface of the feed roll in its width direction. A label printing device that extends to form a protrusion that is longer than the width of the release liner. 2. The printing paper with labels pasted at predetermined intervals on a strip-shaped release mount is passed between the head and the platen roll, the release plate, and a pair of feed rolls in order, and the platen roll and the feed roll are The label-attached release liner is rotated and transferred toward a release plate, and when passing through the release plate, the label is peeled off from the release liner, and protrusions arranged in the width direction are formed on the circumferential surface of the feed roll. Formed label printing device.