JPS607287Y2 - label printer - Google Patents

Description

[Detailed explanation of the idea] This invention relates to a label printer.

Conventionally, a long label paper with a heat-sensitive adhesive layer formed on the back side is intermittently pulled out, data is printed on its surface, heat is applied to the heat-sensitive adhesive layer to activate it, and the tip (printed There is a label printer that uses a cutter to cut the label (part) into individual labels using a cutter.

In this case, a heater is used to apply heat to the heat-sensitive adhesive layer in order to activate it, but the adhesive adheres to the passageway, which impairs the ability to pull out the label paper.

This invention was developed in view of the above-mentioned points, and the purpose is to provide a label printer that can prevent the trouble of adhesive melted from the heat-sensitive adhesive layer adhering to the path through which label paper is pulled out.

This idea activates the heat-sensitive adhesive layer by passing the leading edge of the printed label paper in the printer section through a tunnel-shaped heating path, and then cuts it into label units at the cutting section to perform label printing and adhesive work. By setting the entrance angle of the label paper so that it intersects with the top surface of the heating path at an acute angle, the top surface (print surface) of the label paper is brought into contact with the top surface of the heating path, and the effect is applied from the top surface. At the same time, the lower surface (heat-sensitive adhesive layer) is lifted from the lower surface of the heating path to prevent adhesive from adhering to the heating path, thus promoting activation of the heat-sensitive adhesive layer and smoothing out the label paper. It is designed so that it can be carried out.

An embodiment of this invention will be explained based on the drawings.

1 is a long label paper wound into a roll with the heat-sensitive adhesive layer facing inward.

The feed roller 2
A feeding section 4 consisting of a bush roller 3, a label guide 5 and a label presser 6 facing each other, a label detector 7, a label inside 8, a thermal label printer section 9 which is a printer section, and a cutter holder 10 to hold the label. A cutting section 13 consisting of a fixed blade 11 and a movable blade 12 held movably up and down.
are arranged in sequence.

The feed roller 2 is connected to a motor 15 by a timing belt 14.

A heater dome 17 forming a tunnel-shaped heating passage 16 is provided downstream of the cutting portion 13 and supported by a holder 18 .

Heaters 19 and 20 are embedded in the upper and lower surfaces of the heating passage 16, and the heating passage 16 is inclined so that the entrance side is higher and the exit side is lower.

That is, the upper surface of the cutter holder 10 slopes upward toward the heater dome 17, and the extension line A of the slope is bent at the upper surface of the heating passage 16 and slopes along the upper surface.

This extension line A becomes the approach path of the label paper 1.

Furthermore, with respect to the upper edge of the fixed blade 11, the edge on the entrance side of the upper surface of the heating passage 16 is located above, and the edge on the exit side is located below.

As a result, the entrance angle α of the label paper 1 into the heating path 16 is set to approximately 20'.

Further, a plurality of protrusions 21 are formed on the lower surface of the heating passage 16 along the direction in which the label paper 1 is pulled out, and the entire inner surface of the heating passage 16 is coated with fluororesin.

A heater cover 23 in which an opening 22 is formed and a front cover 24 are provided at the rear of the heater dome 17.

This front cover 24 also has an opening (not shown) through which the label paper 1 projects.

As shown in FIG. 2, the cutting portion 13 and the heating passage 1
6 is cut off by a heat insulating material 25, and a heat insulating material is also attached to the inner surface of the heater cover 23.

These heat insulating materials 25 and 26 are made of glass wool or the like.

In such a configuration, when an operation section (not shown) is operated, the product name mark 8 is lowered to stamp the product name on the label paper 1, and the thermal label printer section 9 prints predetermined data on the label paper 1.

Next, the motor 15 is driven, and the label paper 1 is pulled out by the feed roller 2 and bush roller 3.

Although not shown in the drawings, detection areas such as notches and marks are formed on the label paper 1 at equal pitches, and these detection areas are detected by a detector 7.
is photoelectrically detected and controls the drive time of the motor 15.

Thereby, the feed length of the label paper 1 is managed to be constant.

When a stepping motor is used in place of the motor 15, the detector 7 can be omitted and the formation of the detected portion on the label paper 1 can be omitted.

The leading edge of the label paper 1 pulled out in this manner is heated by heaters 19 and 20 in the heating passage 16, and the heat-sensitive adhesive layer on the back surface (lower surface) is melted and activated.
The movable blade 12 descends and cuts the label paper 1 into label units.

Labels are attached to items by hand.

At this time, since the heating passage 16 is inclined downward, the label paper 1 is moved through the heating passage 1 as shown in the approach path A.
6 and is bent and sent along the upper surface.

Therefore, the heat-sensitive adhesive layer is effectively heated at a close enough distance to be bonded to the upper heater 19, and is also heated by the lower heater 20, so that it is never insufficiently activated.

On the other hand, the lower surface on which the heat-sensitive adhesive layer is formed floats above the lower surface of the heating passage 16, so that the adhesive does not adhere to the heating passage 6 and impair the drawing-out action of the label paper 1.

Moreover, even if the label paper 1 comes into contact with the lower surface of the heating passage 16, the contact area is small because the protrusion 21 is formed on the lower surface, and the inner surface of the heating passage 6 is coated with fluororesin. By doing so, it is possible to more effectively prevent the adhesive from adhering to the heating passage 16.

Furthermore, the fixed blade 11 and the movable blade 12 do not receive heat from the heaters 19 and 20 due to the heat insulating material 25, and do not melt the heat-sensitive adhesive layer and adhere to the label paper 1 during cutting.

The other heat insulating material 26 prevents heating of the heater cover 23 and protects hands from burns when removing the label.

Note that when the heating path 16 is provided approximately horizontally, the approach angle α of the label sheet 1 into the heating path 16 can be set to an acute angle by tilting the label sheet 1 fed from the thermal label printer 9 backward and upward. You may.

As mentioned above, this device sets the angle at which the label paper enters the tunnel-shaped heating path with the heater, thereby bringing the label paper into contact with the top surface of the heating path, increasing heat conduction efficiency and fully activating the heat-sensitive adhesive layer. In addition, it is possible to raise the heat-sensitive adhesive layer side of the label paper from the bottom surface of the heating passage to prevent the adhesive from adhering to the heating passage and the accompanying trouble of impairing the pull-out function of the label paper. It has the effect that it can be done.

[Brief explanation of drawings]

The drawings show one embodiment of this invention, and FIG. 1 is a side view, FIG. 2 is an enlarged longitudinal sectional side view of the main part, and FIG. 3 is an enlarged perspective view of the heater dome. 1... Label paper, 4... Feeding section, 9
...Thermal label printer section (printer section), 1
3... Cutting section, 16... Heating passage, 1
9-20... Heater, α... Approach angle.

Claims (1)

[Scope of utility model registration request] A long label sheet is wound into a roll and has a heat-sensitive adhesive layer formed on its back surface, and is intermittently drawn out toward the printer section by a feeding section. at a position downstream from a cutting section that cuts the label paper passing through into individual labels,
A tunnel-shaped heating passage having a heater on at least an upper surface and through which the label paper passes is provided, and the approach angle of the label paper into the heating passage is such that the label paper intersects with the upper surface of the heating passage at an acute angle. A label printer characterized by being set at an angle.