JPH0312763Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Field of Application The present invention relates to a guide drum having an arcuate surface that bends a supply path for a strip-shaped release mount to which a label is attached.

2. Description of the Related Art A label printing machine using a guide drum is constructed as shown in FIGS. 8 to 14. 12th
As shown in the figure, the strip-shaped release paper 2 to which the label 1 is attached is rolled up to form a roll 3 as shown in FIG.
is installed on. The release paper 2 pulled out from the roll 3 attached to the label roll holder 4 is
It is hung on a take-up holder 9 via a guide drum 5 having a gently arcuate surface, a peeling piece 7 having an acute-angled side 6, and a roller 8. At a position A in front of the peeling piece 7, the peeling paper 2 with a label is held between the top and bottom by the platen roller 10 and a thermal head (not shown), the thermal head prints on the label 1, and the platen roller 10 is moved in the direction of the arrow. The release mount 2 is rotated in the direction B to be sent in the direction of the arrow C, and in conjunction with this feeding, the take-up holder 9 is rotated in the direction of the arrow D to position the release mount 2 between the platen roller 10 and the roller 8. Winding is performed with a certain tension applied to the label, and as a result of this winding, when the release liner 2 passes through the release piece 7, the printed label 1 is peeled off from the release liner 2, as shown in FIG. Issued as follows.

As shown in FIGS. 8 and 10, the guide drum 5 has guide projections 12 ₁ and 12 ₂ formed on its arcuate surface 11 on both sides of the release mount 2 in the width direction from the entrance side to the exit side. and the roller 8 is the first
As shown in FIG. 1, flanges 13 ₁ and 13 ₂ are formed at both ends. Distance L ₁ between both side protrusions 12 ₁ and 12 ₂
The distance L ₂ between the flange parts 13 ₁ and 13 ₂ is the width of the peelable mount 2
It is slightly larger than L ₀ and is formed such that L ₀ ≒ L ₁ = L ₂ , and the guide protrusions 12 ₁ and 12 ₂ and the flange 1
3 ₁ and 13 ₂ restrict movement of the release mount 2 in the width direction on the entrance side and the exit side of the release piece 7.

The conventional guide drum 5 is attached to a stationary chassis 14 with screws 15, as shown in FIG.

Problems to be Solved by the Invention In such a conventional configuration, when the width of the release mount 2 used becomes _L3 , which is narrower than the width _L0 , as shown in FIG. 12b, the following problems occur. occurs.

In other words, the widthwise movement of the release mount 2 on the entrance and exit sides of the release piece 7 cannot be regulated, causing the release mount 2 to meander, causing the release mount 2 to ride on the large diameter portion 16 of the release piece 7. If the label 1 is torn or the peel mount 2 is tilted by θ ₁ as shown in FIG. There is a problem that it becomes difficult to take out the issued label 1.

Here, in order to prevent the meandering, it may be possible to replace the guide drum 5 and roller 8 with ones suitable for the narrow release mount 2. Regarding the roller 8, as shown in FIG. 11, the E-ring 18 attached to the support shaft 17 is removed, and the roller 8 can be pulled out toward the front in FIG. 8 and replaced with another roller. However, in order to replace the guide drum 5, the troublesome work of inserting your hand inside the body of the label printing machine and loosening and tightening the screws with a tool such as a screwdriver in the direction shown by arrow E in Fig. 8 is required. Is required. Particularly when the label printing machine is miniaturized, the above-mentioned work is difficult and there is a problem that the guide drum 5 cannot be replaced.

An object of the present invention is to provide a guide drum that can restrict movement in the width direction regardless of whether the release mount is wide or narrow.

Means for Solving the Problems The guide drum of the present invention includes a guide drum body in which a notch is formed from one end face in the width direction to a position including the guide protrusion, and a guide drum body in which the notch is formed in the guide drum body. The tip is replenishable and removable, and the auxiliary guide protrusion is formed such that the rising surfaces are located at unequal distances from each end surface of the tip in the width direction.

Function According to this configuration, the auxiliary guide protrusions are formed on the tip so that the rising surfaces are located at unequal distances from each end face in the width direction, so that the mounting direction of the tip in the notch of the guide drum body is fixed. By simply selecting , you can obtain the first movement restriction state for a wide-width release mount and the second movement restriction state for a narrow-width release mount between the guide protrusion on the other side of the guide drum body. be able to.

Embodiment Hereinafter, an embodiment of the present invention will be described based on FIGS. 1 to 7. Components having the same functions as those in FIGS. 8 and 12 showing the conventional example will be described with the same reference numerals.

FIG. 1 shows an exploded perspective view of the guide drum 5 of the present invention. An example of the guide drum body 19 includes an end surface 2
A notch 21 is formed from 0 to a position including the guide protrusion 12 ₂ , and a chip 22 is attached to this notch 21 from the end surface 20 side with screws 23 . The arc surface 24 of the chip 22 has a position at a distance L ₄ from one end surface 25 and another end surface 26.
The auxiliary guide protrusion 27 is formed such that its rising surface is located at a distance L ₅ from the auxiliary guide protrusion 27 (L ₅ ≠L ₄ ).

With this configuration, the wide release mount 2
When using the end face 2 as shown in Figure 3,
5 on the outside and insert the tip 22 into the guide drum body 1.
9, the auxiliary guide protrusion 2 of the tip 22
7 is connected to the guide protrusion 12 ₂ of the guide drum main body 19, and the guide protrusion 12 of the guide drum main body 19
₁ , a peeling paper path with an interval L ₁ is formed from the inlet side to the outlet side of the guide drum 5.

When using a narrow release mount 2, the fourth
Tip 22 with end face 26 outside as shown in the figure.
When attached to the guide drum body 19, the guide drum body 19 is attached to the outlet side of the guide drum 5.
A peel-off mount path is formed between the guide protrusion 12 ₁ of the chip 22 and the auxiliary guide protrusion 27 of the chip 22 with a distance L ₆ ≈L ₃ that is slightly larger than the width L ₃ of the peel-off mount 2 .

FIG. 2 shows a label printing machine using the guide drum 5 shown in FIG. The guide drum 5 is the third
As shown in FIGS. 5 and 4, the mounting direction of the chip 22 is selected depending on the width of the release mount, and the rollers 8 are also adjusted as shown in FIGS. 5 to 7.

In other words, the roller 8 includes a roller body 28 having a flange 13 ₁ formed at its base end, and a roller body 28 .
The tip 30 is attached to the shaft 17 with a screw 29 at the tip thereof, and a flange 13 ₂ is formed on one end surface of the tip 30 . Further, the diameter of the tip of the roller body 28 and the diameter of the other end surface of the tip 30 are the same. Guide drum 5
When the width of the roller 8 is set to be wide as shown in _FIG.
Screw the screw 29 onto the shaft portion 17 with the side facing outward.
When the guide drum 5 is set to have a narrow width as shown in FIG. 4, the roller 8 is mounted with the flange ₁₃₂ facing inside as shown in FIG.

As described above, the guide drum 5 and the roller 8 can be used to attach or remove the screws 23, 29 from the side of the label printing machine to change the mounting state of the chips 22, 30, thereby making it possible to print either a wide or a narrow peeling mount. 2
It can also be used with smaller label printing machines and has good operability.

Effects of the Invention As described above, according to the present invention, there is provided a guide drum body in which a notch is formed from one end face in the width direction to a position including the guide protrusion, and the notch in the guide drum body is refilled. Since the auxiliary guide protrusions are formed so that the rising surfaces are located at unequal distances from each end face of the tip in the width direction, the mounting direction of the tip in the notch of the guide drum body is By simply selecting , the first movement restriction state for a wide-width release mount and the second movement restriction state for a narrow-width release mount can be set between the guide protrusion on the other side of the guide drum main body. The guide drum body can be moved in a normal state corresponding to the width of the peelable mount without having to remove or attach the screws that attach the guide drum body.

[Brief explanation of the drawing]

Figures 1 to 7 show an embodiment of the present invention. Figure 1 is an exploded perspective view of a guide drum, Figure 2 is a side view of a label printing machine using the same guide drum, and Figure 3 is a width The second one in the state of use of the wide release mount
Figure 4 is a view from the -' arrow in Figure 2 when a narrow release mount is in use, Figure 5 is an exploded perspective view of the roller, and Figure 6 is a wide release mount. Perspective view of the roller in use condition, No. 7
The figure is a perspective view of the roller in use with a narrow release liner, Figures 8 to 12 show conventional examples, Figure 8 is a side view of the label issuing machine, and Figure 9 is the Fig. 10 is a view from Y-Y' in Fig. 8, Fig. 11 is a view from Z-Z' in Fig. 8, and Fig. 12 shows a wide release mount and a narrow one. FIG. 13 is an exploded perspective view of the guide drum in FIG. 8, and FIG. 14 is an explanatory diagram of the meandering state. 2...Peelable mount, 4...Label roll holder,
5... Guide drum, 7... Peeling piece, 12 ₁ , 1
2 ₂ ... Guide protrusion, 19... Guide drum body,
20... End face on one side in the width direction of the guide drum main body, 21... Notch, 22... Chip, 27...
...Auxiliary guide protrusion.

Claims (1)

[Scope of utility model registration request] A guide drum having an arcuate surface that bends a supply path of a strip-shaped release mount to which a label is attached, and guide protrusions are formed on both sides of the arc surface in the width direction of the release mount, It consists of a guide drum body in which a notch is formed from one end face to a position including the guide protrusion, and a removable tip that replenishes the notch in the guide drum body, and A guide drum for a label printing machine in which auxiliary guide projections are formed so that the rising surfaces are located at unequal distances from each end surface.