JP2000309316A - Label release mechanism for label printer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a label release mechanism for a label printer for easily setting a label with a mounting paper on a label printer. SOLUTION: A press member substrate 20 is set rotatably around a supporting axis 21, and a press member 17 moving to a pressing position whereon the press member substrate 20 is rotated around the axis 21 to press a mounting paper 1 and the folding-back angle formed by a label release body 6 of the mounting paper 1 is formed into a sharp angle and also moving to an open position whereon the pressing to the mounting paper 1 is released to open widely a mounting paper carrying line 22 is set on the press member substrate 20. When a label 3 with the mounting paper is set on a label printer, the press member substrate 20 is rotated around the supporting axis 21 to move the press member 17 to the open position whereon the mounting paper carrying line 22 is widely opened and easily carry out the work of passing through the mounting paper 1 through the inside of the mounting paper carrying line 22.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a label peeling mechanism for a label printer that uses a label with a large number of labels attached to a long sheet of paper.

[0002]

2. Description of the Related Art An example of a conventional label peeling mechanism in a label printer will be described with reference to FIG. In this label printer, a label 3 with a mount is used in which a number of labels 2 are attached to a long mount 1, and the label 3 with a mount is conveyed between a platen 4 and a thermal head 5, and 5 prints on the label 2. After the printing on the label 2 is performed, the backing sheet 1 is brought into contact with the label peeling body 6 and is pulled in a direction to be turned back,
The label 2 is peeled from the backing paper 1.

[0003] A pair of pulling rollers 7 and 8 are provided as a mechanism for pulling the backing paper 1. One pulling roller 7 is rotatably driven by a motor (not shown) and is provided at a fixed position. The other pulling roller 8 is attached to a support 10 that is rotatable around a support shaft 9. Support 10
The tension roller 8 is rotatably provided so as to move to a contact position where the tension roller 8 contacts the tension roller 7 and a separation position where the tension roller 8 separates from the tension roller 7. When the mount 1 is passed between the tension rollers 7 and 8, the operation protrusion 11 formed on the support 10 is operated to rotate the support 10 to a position indicated by a two-dot chain line. 7,
8, the backing paper 1 is inserted between them.

A label peeling member 6 and a pair of tension rollers 7, 8
A pressing roller 12 that presses the backing sheet 1 in a direction to make the folding angle “θ” of the backing sheet 1 by the label peeling body 6 acute is provided, and the pressing roller 12 is provided at a fixed position. For this reason, the mount transfer path 13 for transferring the mount 1 formed on the outer periphery of the pressing roller 12 is
It is always in a narrow state.

[0005]

Since the pressing roller 12 is provided at a fixed position and the backing paper conveyance path 13 is always narrow, when the backing label 3 is set in the label printer, the backing paper 6 is attached to the label peeling member 6. The backed backing sheet 1 must be passed through the narrow backing sheet transport path 13, which is one of the reasons why the work of setting the backing label 3 on the label printer is troublesome.

When the mount 1 is passed between the tension rollers 7 and 8, the operation protrusion 11 is operated with one hand to rotate the support 10 to a position shown by a two-dot chain line. ,
The backing sheet 1 must be inserted between the tension rollers 7 and 8 with the other hand, which is one of the causes of the troublesome work of setting the backing label 3 on the label printer.

It is therefore an object of the present invention to provide a label peeling mechanism of a label printer which can easily set a label with a mount on the label printer.

[0008]

According to the first aspect of the present invention,
The label is transported by transporting a label with a number of labels attached to a long-sized sheet of paper, and after printing on the label is performed, the label is brought into contact with a label peeling body and pulled in a direction to fold the label. In a label peeling mechanism of a label printer that peels off from the backing paper, a pressing member support is attached rotatably around a support shaft,
The pressing member support rotates around the support shaft to press the backing sheet so that the backing angle of the backing sheet by the label peeling member becomes an acute angle. A pressing member that moves to an open position where the path is largely opened is attached to the pressing member support.

Therefore, when setting the label with the mount on the label printer, the pressing member support is rotated around the support shaft, and the pressing member is released to the open position where the pressing against the mount is released and the mount conveying path is largely opened. Move. This makes it easy to pass the backing paper through the backing paper conveyance path. After the mount is passed through the mount transport path, the pressing member support is rotated about the support shaft, and the pressing member is moved to the pressing position. Thereby, the folding angle of the backing sheet which is folded back in contact with the label peeling member becomes acute, and the label can be smoothly separated from the backing sheet.

According to a second aspect of the present invention, in the label peeling mechanism of the label printer according to the first aspect, at least one of the pair of pulling rollers is configured to rotate and drive at least one of the pair of pulling rollers to pinch and pull the mount. A roller is attached and rotated about a support shaft, so that one of the pulling rollers is brought into contact with the other pulling roller in a clamping position and one of the pulling rollers is moved away from the other pulling roller. A pulling roller support to be moved, and the pulling roller support so that one of the pulling rollers moves to a separating position when the pressing member support rotates so that the pressing member moves to an open position. A pressing portion for pressing and rotating the body is provided on the pressing member support.

Therefore, when the pressing member support rotates so that the pressing member moves to the open position, the pulling roller support pressed by the pressing portion of the pressing member support rotates, and the pulling roller support rotates. One of the attached pulling rollers moves to the separated position. For this reason, the operation | work which passes a mount in a mount conveyance path can be performed easily, and the operation | work which passes the mount between a pair of tension rollers can be performed easily. After the mount is passed between the pair of pulling rollers, the pulling roller support is rotated about a support shaft, and a clamping position at which one pulling roller attached to the pulling roller support contacts the other pulling roller. , And the base paper is pinched and pulled by a pair of pulling rollers.

According to a third aspect of the present invention, in the label peeling mechanism of the label printer according to the first aspect, a lock mechanism for locking the pressing member support at a position where the pressing member has moved to the open position is provided. .

Therefore, the pressing member is locked at the open position by locking the pressing member support by the lock mechanism, and the mounting sheet can be gripped with both hands when the operation of passing the mounting sheet through the mounting sheet conveying path is performed. Can be more easily passed through the board transfer path.

According to a fourth aspect of the present invention, in the label peeling mechanism of the label printer according to the second aspect, the pressing member support is locked at a position where the pressing member has moved to the open position, and the pulling roller is at the separated position. And a lock mechanism for locking the pulling roller support at the position where the pulling roller is moved.

Therefore, by locking the pressing member support and the tension roller support by the lock mechanism, the pressing member is locked at the open position and one of the tension rollers is locked at the separated position, so that the backing paper is transferred to the backing paper transport path. Can be gripped with both hands when performing the operation of passing the sheet through the inside of the sheet and the operation of passing the sheet between the pair of tension rollers, and the operation of passing the sheet through the sheet conveyance path and the sheet of the pair of tension rollers. The work of passing through can be performed more easily.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS. The same parts as those described in FIG. 6 are denoted by the same reference numerals, and description thereof will be omitted.
FIG. 1 shows the entire structure of a label printer. This label printer is composed of a printer main body 14 and a roll paper holder 15, and the roll paper holder 15 has a large number of sheets on the long backing paper 1. A label 3 with a backing on which a label 2 is attached is wound and held in a roll shape. A peeling unit 16 containing various members for peeling the label 2 from the backing sheet 1 is detachably attached to the printer body 14. The platen 4, the thermal head 5, and the label peeling body 6 are attached near the peeling unit 16 in the printer main body 14.

FIGS. 2 and 3 are longitudinal side views showing the internal structure of the peeling unit 16. In the peeling unit 16, the backing sheet 1, which is in contact with the label peeling member 6 and pulled in the direction of turning back, is pressed, and the turning angle “θ” of the backing sheet 1
A pressing roller 17, which is a pressing member for making the angle of the sheet 1 an acute angle, and a pair of pulling rollers 18, 19, etc., which pinch and pull the mount 1 by rotating one of them.

The pressing roller 17 is mounted on one end of a pressing roller support 20 which is a pressing member support, and a support shaft 21 is mounted on the other end of the pressing roller support 20. The pressing roller support 20 includes a pressing position (see FIG. 2) where the pressing roller 17 presses the backing sheet 1 to make the folding angle “θ” of the backing sheet 1 by the label peeling body 6 an acute angle (see FIG. 2). Is rotatably provided around the support shaft 21 so as to move to an open position (see FIG. 3) in which the pressing of the sheet 1 is released and the sheet conveying path 22 on which the sheet 1 is conveyed is largely opened. Further, the pressing roller support 20
When the pressing roller 17 is moved to the pressing position by rotating the pressing roller support 20, the hook plate 24 is hooked on the hook shaft 23 so that the pressing roller support 20 is locked. (See FIG. 2).

The hook plate 24 is rotatably mounted around the plate shaft 26 in the direction in which the biasing force of the spring 25 acts, and receives the biasing force of the spring 27 with respect to the axis of the plate shaft 26. It is attached rotatably in a tilting direction. Then, as shown in FIG. 2 and FIG.
The lock of the pressing roller support 20 can be released by pressing and rotating the pressing roller support 20 locked by being hooked on the support shaft 3 around the support shaft 21 in the clockwise direction. When unlocking,
When the pressing roller support 20 is rotated clockwise around the support shaft 21, the hook shaft 23 presses the inclined portion 24 a of the hook plate 24 so that the hook plate 24
Pivots to the inclined position shown in FIG. 5B, whereby the hook plate 24 is caught on the hook shaft 23, and the hook plate 24 is rotated counterclockwise around the plate shaft 26 by the urging force of the spring 25. It turns in the direction and is not caught on the hook shaft 23. Thereafter, by pulling the pressing roller support 20 in the counterclockwise direction, the pressing roller support 20 rotates to the position shown in FIGS. 3 and 4C.

One tension roller 18 has both ends attached to a tension roller support 28, and
Numeral 8 is attached rotatably around a support shaft 29.
The other pulling roller 19 is fixedly positioned, and the motor 3
0 and driven to rotate. Tension roller support 28
The pull roller 18 contacts the pull roller 19 and
Is rotated around the support shaft 29 so as to move to a holding position (see FIG. 2) for holding the pulling roller and a separating position (see FIG. 3) where the pulling roller 18 separates from the pulling roller 19. A spring 31 is attached to the support shaft 29.
Urges the pulling roller support 28 in a direction to rotate clockwise around the support shaft 29.

A pressing portion 32 is formed on the pressing roller support 20, and the pressing portion 32 is provided when the pressing roller support 20 is rotated so that the pressing roller 17 moves to the open position. 28 to press the pressure receiving surface portion 28a,
The pulling roller support 28 is rotated about a support shaft 29 so that the pulling roller 18 moves to the separated position. Further, a flat portion 32a is formed on the outer peripheral surface of the pressing portion 32, and when the pulling roller support 28 is rotated around the support shaft 29 to move the pulling roller 18 to the separating position, the flat portion 32a is formed. As shown in FIG. 3, the tension roller support 28 locks against the urging force of the spring 31 at the position where the tension roller 18 moves to the separated position by the contact of the tension roller 32 a with the pressure receiving surface portion 28 a of the tension roller support 28. At the same time, the pressing roller support 20 is locked at the position where the pressing roller 17 has moved to the open position. And these springs 3
1. The pressing portion 32 having the flat portion 32a and the pressure receiving surface portion 28a of the pulling roller support 28 against which the flat portion 32a abuts to lock the pressing roller support 20 at the position where the pressing roller 17 is moved to the open position. A lock mechanism 33 that locks the tension roller support 28 at a position where the tension roller 18 has moved to the separated position is formed.

In such a configuration, FIG. 2 shows a state in which the label 2 on which predetermined items are printed by the thermal head 5 is peeled off from the backing paper 1 and is issued. When the label 2 is peeled off, the tension roller 19 is driven to rotate by the motor 30, and the backing sheet 1 sandwiched between the tension rollers 18, 19 is pulled in the rotation direction of the tension rollers 18, 19 indicated by the arrow. The pressing roller 17 is pressed against the backing sheet 1 pulled by the pulling rollers 18 and 19, and the backing angle “θ” when the backing sheet 1 pressed by the pressing roller 17 is folded back in contact with the label peeling member 6 is an acute angle. , And the label 2 is smoothly separated from the backing sheet 1.

When the label 2 is peeled off, the backing paper 1
The pulling force from the pulling rollers 18 and 19 acting on the pressing roller 17 acts on the pressing roller support 20 via the pressing roller 17. The pulling force applied to the pressing roller support 20 is directed to rotate the pressing roller support 20 counterclockwise around the support shaft 21, that is, such that the pressing roller 17 moves from the pressing position to the open position. The pressing roller support 20 acts in a rotating direction. However, in order to rotate the pressing roller support 20 so that the pressing roller 17 moves from the pressing position to the opening position, as described above, the pressing roller support 20
The hook plate 24 is not released from being hooked on the hook shaft 23 unless it is once rotated clockwise (see FIGS. 4A and 4B). Therefore, there is no inconvenience that the hook plate 24 comes off the hook shaft 23 when the label 2 is peeled off and the pressing roller support 20 rotates so that the pressing roller 17 moves to the open position.

When setting the label 3 with the backing sheet in the label printer, as shown in FIG. 3, the pressing roller support 20 is rotated so that the pressing roller 17 moves to the open position. With this rotation, the pressing portion 32 is attached to the pulling roller support 2.
8, the tension roller support 20 rotates clockwise around the support shaft 29 so that the tension roller 18 moves to the separated position.

For this reason, when the pressing roller 17 moves to the open position, the board transfer path 22 is largely opened,
The work of passing the mount 1 into the mount transfer path 22 can be easily performed. Furthermore, a gap is formed between the tension rollers 18 and 19 by moving the tension roller 18 to the separating position, and the work of passing the mount 1 between the tension rollers 18 and 19 can be easily performed.

Moreover, the pressing roller support 20 and the pulling roller support 28 are locked by the lock mechanism 33 at the position where the pressing roller 17 has moved to the open position and the position where the pulling roller 18 has moved to the separating position. When the operation of passing the mount 1 through the mount transfer path 22 and between the tension rollers 18 and 19 is performed, the mount 1 can be gripped with both hands. Thus, the operation of passing the mount 1 through the mount transfer path 22 and the operation of passing the mount 1 between the pair of tension rollers 18 and 19 can be performed more easily.

Note that the peeling unit 16 of the present embodiment is detachably attached to the printer main body 14.
If necessary, for example, when the label 2 is to be issued with the label 2 attached to the mount 1, the peeling unit 16 is removed from the printer body 14. When the peeling unit 16 is attached to and detached from the printer body 14, the pressing roller support 20 is rotated to the position shown in FIG. 3, and the detaching unit 16 is attached to and detached from the printer body 14 in this state. Sometimes the pressing roller 17 is in the printer body 1
4 can be prevented from being hit, and the detachment unit 16 can be easily attached to and detached from the printer main body 14.

Further, in the present embodiment, the pressing roller 17 has been described as an example of the pressing member, but a rod-shaped member may be used as the pressing member.

[0029]

According to the label peeling mechanism of the label printer according to the first aspect of the present invention, when the label with the backing sheet is set on the label printer, the pressing member support on which the pressing member is attached is rotated to transfer the backing sheet. By moving the pressing member to the open position where the path is largely opened, the operation of passing the mount through the mount transport path can be easily performed.

According to the second aspect of the present invention, in the label peeling mechanism of the label printer according to the first aspect, when the pressing member support is rotated to move the pressing member to the open position, the pressing member support is rotated. The pulling roller support pressed by the pressing portion rotates and one of the pulling rollers attached to the pulling roller support moves to the separating position, thereby facilitating the operation of passing the backing sheet through the backing sheet conveyance path. In addition to this, the operation of passing the mount between the pair of tension rollers can be easily performed.

According to the third aspect of the present invention, in the label peeling mechanism of the label printer according to the first aspect, a lock mechanism for locking the pressing member support at a position where the pressing member has moved to the open position is provided. Therefore, the pressing member can be locked at the open position by locking the pressing member support with the locking mechanism, and the mounting sheet can be gripped with both hands when performing the work of passing the mounting sheet through the mounting sheet conveyance path,
Thereby, the work of passing the backing paper through the backing paper conveyance path can be performed even more easily.

According to the fourth aspect of the present invention, in the label peeling mechanism of the label printer according to the second aspect, the pressing member is locked at the position where the pressing member has moved to the open position, and the tension roller is moved to the separating position. Since a lock mechanism for locking the tension roller support at the moved position is provided, the pressing member is locked at the open position by locking the pressure member support and the tension roller support with the lock mechanism, and one of the tension members is pulled. The roller can be locked at the separated position, and the backing sheet can be gripped with both hands when performing the work of passing the backing sheet in the backing sheet conveyance path and the operation of passing the backing sheet between the pair of tension rollers, In addition, the operation of passing the backing sheet through the backing sheet conveyance path and the operation of passing the backing sheet between the pair of tension rollers can be performed more easily.

[Brief description of the drawings]

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

FIG. 2 is a vertical sectional side view showing an internal structure of a peeling unit.

FIG. 3 is a vertical sectional side view showing an internal structure of a peeling unit.

FIG. 4A is a side view showing a state in which the pressing roller support is locked by a hook plate and the pressing roller is located at a pressing position, and FIG. 4B is a clockwise direction from the locked state of the pressing roller support. FIG. 4C is a side view showing a state in which the locking by the hook plate is released by being pressed in the rotating direction, and FIG. 4C is a diagram illustrating a pressing roller in which the pressing roller support unlocked by the hook plate is rotated in the counterclockwise direction; It is a side view which shows the state which located the open position.

5A is a front view showing a state in which a pressing roller support is locked by a hook plate and a pressing roller is located at a pressing position, and FIG. 5B is a front view showing a state in which the pressing roller support is pressed from the locked state and a hook is shown. It is a front view showing the state where lock by a plate was released.

FIG. 6 is a side view showing an example of a conventional label peeling mechanism.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 backing paper 2 label 3 backing paper label 6 label peeling body 17 pressing member 18, 19 pulling roller 20 pressing member support 21 support shaft 22 mounting paper conveyance path 28 pulling roller support 29 support shaft 32 pressing portion 33 locking mechanism

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Yoshifumi Sakamoto 570, Ohi, Ohi-cho, Tata-gun, Shizuoka Prefecture F-term (reference) 2F060 AA09 3E095 BA03 CA01 CA02 DA22 DA42 FA07 3F108 JA03

Claims (4)

[Claims] 1. A method of transporting a label with a backing sheet on which a number of labels are stuck on a long backing sheet, and after printing on the label, bringing the backing sheet into contact with a label peeling body and turning it back. In a label peeling mechanism of a label printer, wherein the label is peeled from the backing paper by pulling, a pressing member support is attached rotatably around a spindle, and the pressing member support is rotated around the spindle. By rotating the paperboard, the paperboard is moved to a pressing position where the paperboard is pressed to make the folding angle by the label peeling member acute, and an open position where the paperboard is released by releasing the pressing against the paperboard. A label peeling mechanism for a label printer, wherein a pressing member is attached to the pressing member support. 2. A pair of pulling rollers for pinching and pulling the backing sheet by rotating at least one of them,
One of the pulling rollers is attached and pivots around a support shaft, so that one of the pulling rollers is separated from the other pulling roller by a clamping position at which one of the pulling rollers comes into contact with the other of the pulling rollers. A pulling roller support for moving to the separating position, wherein one of the pulling rollers moves to the separating position when the pressing member support rotates so that the pressing member moves to the open position. 2. The label peeling mechanism of a label printer according to claim 1, wherein a pressing portion for pressing and rotating the pulling roller support is provided on the pressing member support. 3. The label peeling mechanism of a label printer according to claim 1, further comprising a lock mechanism that locks the pressing member support at a position where the pressing member moves to an open position. 4. A lock mechanism is provided for locking the pressing member support at a position where the pressing member has moved to an open position and locking the tension roller support at a position where the pulling roller has moved to a separating position. The label peeling mechanism of a label printer according to claim 2, wherein