JP2013166631A - Label peeling mechanism and printer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a label peeling mechanism for surely peeling a label from a board of a label continuous body.SOLUTION: A peeling mechanism 20 is attached to a transporting roller 18 having a shaft 22 and a plurality of cylindrical body rollers 23 arranged at the shaft 22 at intervals, and peels a label from a board of a label continuous body transported by the transporting roller 18. The peeling mechanism 20 has a peeling plate arranged between the body rollers 23 and a supporting member 26 which fixes the peeling plate with respect to the rotation of the body rollers 23, and at least part of the peeling plate at a downstream side in a transporting direction of the label continuous body has a projecting portion 27a which projects to the outside in a radial direction of the body rollers 23.

Description

  The present invention relates to a label peeling mechanism and a printer, and more particularly to a label peeling mechanism and a printer for peeling a label from a mount of a label with a mount.

  A conventional label peeling mechanism in which a platen roller is provided on a cover of a printer main body, and a thermal head fixed in the main body and a platen roller are opposed to each other when the cover of the printer main body is in a closed position. The peeling mechanism will be described as an example.

  The label peeling portion of the printer described above will be described with reference to FIG.

  As shown in FIG. 6, the conventional label peeling unit 50 includes a platen roller 51 and a label peeling mechanism 52.

The platen roller 51 includes a main body roller 54 and a rotation shaft 53. The rotating shaft 53 is a rod-like metal such as stainless steel, and is rotatably supported on an inner wall of a cover (not shown) of the printer main body. The main body roller 54 is a cylindrical elastic body, and is inserted into and fixed to the rotating shaft 53. When the rotating shaft 53 rotates, the main body roller 54 also rotates.

  The label peeling mechanism 52 includes a support member 55 and a peeling bar 56. The pair of support members 55 is a plate-like metal or resin provided with a notch, and is fixed to a cover inner wall of a printer main body (not shown) in a state where both ends of the rotary shaft 53 are passed through the notch. Further, when the platen roller 51 is attached, the platen roller 51 has a portion projecting downstream from the radial length of the main body roller 54. The peeling bar 56 is a plate-like metal, and both ends thereof are attached to the protruding portions of the pair of support members 55.

  In the label peeling unit 50 described above, the printed label continuum L is transferred to the label peeling unit 50, and the mount is bent and pulled in the direction opposite to the transfer direction with the downstream end of the peeling bar 56 as a fulcrum. Thus, the label is peeled off from the mount.

  By the way, when a label having a width wider than a standard label or a label having a relatively strong adhesive force is used in the label continuous body, a stronger peeling force is required. When the above-described label peeling portion 50 is used, it is stronger. Tensile force is required. However, when a stronger pulling force is applied, the peeling bar 56 is bent by the force, and the entire label or a part thereof is not peeled off. In order to increase the strength of the peeling rod 56, countermeasures such as using a larger peeling rod and manufacturing with a high-strength material can be considered. Problems such as an increase in size arise.

JP 2006-272845 A

  The present invention has been made in view of such problems, and a continuous label that requires a stronger peeling force, such as a label continuous body having a larger label width than the standard or a label having a stronger adhesive strength than the standard. It is an object of the present invention to provide a label peeling mechanism and a printer that reliably peels a label from a mount and realizes space saving even when a body is used.

The present invention is attached to a transfer roller having a shaft and a plurality of cylindrical body rollers arranged with a gap in the shaft, and the label is peeled off from the mount of the label continuous body transferred by the transfer roller. It is a peeling mechanism, The said peeling mechanism has a peeling plate arrange | positioned between the said main body rollers, and a supporting member which fixes this peeling plate with respect to rotation of the said main body roller, The said peeling plate has the said At least a portion of the downstream side in the label continuous body transport direction has a protruding portion that protrudes radially outward of the main body roller.
The protrusion may have a contact point that contacts the back surface of the mount, and the mount may be turned around the contact point as a fulcrum.
The gist of the second invention is a printer that performs printing on a continuous label body in which a label is temporarily attached to a mount, and peels the label after printing from the mount. The printer includes a shaft that is rotatably supported, A platen roller having a plurality of cylindrical main body rollers arranged with a gap in the shaft, a thermal printing head disposed opposite to the platen roller, and a label printing unit having a peeling between the main body rollers. And a support member that fixes the release plate against the rotation of the main body roller, and at least a part of the release plate on the downstream side in the transport direction of the label continuous body is outside the radial direction of the main body roller. And a peeling mechanism having a protruding portion protruding in the direction.

The label peeling mechanism and the printer of the present invention make it possible to reliably peel the label from the mount. In particular, according to the label peeling mechanism of the first invention, stable label transfer can be realized. In particular, according to the printer of the second invention, a large space is not required, jamming or the like due to the label not being peeled from the mount can be prevented, and the label can be issued smoothly.

1 is a side view of a printer 1 according to Embodiment 1 of the present invention. 2 is a perspective view of the platen roller 18 of FIG. It is a perspective view of the label peeling mechanism 20 of FIG. 2 is a perspective view when the label peeling mechanism 20 is attached to the platen roller 18 of FIG. It is the II sectional view taken on the line of FIG. It is a perspective view for demonstrating the conventional label peeling part 50. FIG.

  A printer 1 according to a first embodiment of the present invention will be described with reference to FIGS.

  FIG. 1 is a side view of a printer 1 according to a first embodiment of the present invention. As illustrated, the printer 1 includes a label supply unit 2, a label detection unit 3, a label printing unit 4, and a label peeling unit. 5 and a control unit 6.

  The label continuum L as a printing medium of the printer 1 includes a mount 12 and a label 13, and a plurality of labels 13 having a predetermined length are temporarily attached to the mount 12 at predetermined intervals. Although a plurality of labels 13 are used here, a belt-like label 13 temporarily attached to the mount 12 may be used.

  The main body of the printer 1 includes a main housing 7, an opening / closing cover 8, and a hinge 9. The main housing 7 is constructed by assembling a plurality of resin plates into a box shape with the upper part opened, and houses each part such as the label supply unit 2 and the label detection unit 3 inside. The opening / closing cover 8 is a plate-shaped resin, and one end of the opening / closing cover 8 is connected to the main housing 7 by a hinge 9, and the opening / closing cover 8 can be opened and closed outwardly with the hinge 9 as a fulcrum. A label discharge port 10 is provided at the other end, and a mount discharge port 11 is provided between the label discharge port 10 and the hinge 9.

  The label supply unit 2 is configured to load the label supply shaft 14 with the roll-shaped label continuous body L and supply the label detection unit 3 with the label continuous body L in a strip shape.

  The label detection unit 3 includes a light emitter 15 and a light receiver 16. The light emitter 15 and the light receiver 16 are arranged on the upstream side of the label printing unit 4 and the downstream side of the label supply unit 2, the light emitter 15 is arranged on the front side of the label continuum L, and the light receiver 16 is arranged on the back side of the mount 12. Has been. The label detector 3 emits light from the light emitter 15 to the front side of the label continuum L, and the light receiver 16 receives the light to detect the position and the transfer amount of the label continuum L.

  The label printing unit 4 includes a thermal head 17, a platen roller 18, and a support member 19. The thermal head 17 is attached and fixed to the main housing 7, and the platen roller 18 is rotatably attached to a support member 19 fixed to the opening / closing cover 8. When the opening / closing cover 8 is in the closed state, the thermal head 17 and the platen roller 18 are fixed. Are arranged opposite to each other. The thermal head 17 and the platen roller 18 sandwich the label continuum L with a predetermined pressing force, print on the label continuum L, and transfer the label continuum L to the label peeling unit 5.

  The platen roller 18 will be described in more detail. FIG. 2 is a perspective view of the platen roller 18, and the platen roller 18 includes a rotation shaft 22 and a main body roller 23 as illustrated.

  The rotation shaft 22 is a metal such as a cylindrical stainless steel. The shape is not limited to a cylindrical shape, and may be, for example, a cylindrical shape. The material is not limited to metal but may be resin. Both ends of the shaft are rotatably supported by a pair of support members 19 fixed to the opening / closing cover 8. Further, one end of the rotary shaft 22 is connected to a drive source such as a motor (not shown) via a belt, and the force from the drive source is transmitted to rotate in the transfer direction and the opposite direction. Yes.

  The plurality of main body rollers 23 are elastic bodies made of, for example, urethane rubber or silicone rubber having a hollow central axis. The plurality of main body rollers 23 are fixed so that the rotation shaft 22 is inserted through the air hole with a gap therebetween, and when the rotation shaft 22 is driven to rotate, the main body roller 23 also rotates. ing.

  The label peeling unit 5 includes a label peeling mechanism 20 and a turning roller 21. The label peeling unit 5 is located on the downstream side of the label printing unit 4, and the label peeling mechanism 20 turns only the mount 12, sandwiches the mount between the platen roller 18 and the turning roller 21, and transfers it to the mount discharge port 11. The label 13 is peeled off from the mount 12 and only the label 13 is discharged from the label discharge port 10.

  The label peeling mechanism 20 will be described in more detail. FIG. 3 is a perspective view of the label peeling mechanism 20. As shown in the figure, the label peeling mechanism 20 includes an attachment member 24, a first support member 25, a second support member 26, and a peeling plate 27. ing.

  The pair of attachment members 24 is a resin having a curved portion 27 a that is notched in a U-shape and has one side extended in a curved shape, and is fixed to the pair of support members 19. . The shape is not limited to the U-shape, and may be any shape as long as it can be fixed to the support member 19 and the first support member 25 can be pivotally supported. The material is not limited to resin, and may be metal or the like.

  The first support member 25 is a rod-like metal such as stainless steel, and both ends thereof are supported by the curved portions 24 a of the pair of attachment members 24.

  The plurality of second support members 26 are made of rod-like metal such as stainless steel, and are fixed to the first support member 25 at one end, and a release plate 27 to be described later is fixed to the other end. It stands up so that it may be arranged in 18 gaps. Here, one end is fixed to the first support member 25, but it may be slid and fixed at different gap positions depending on the type of the platen roller 18. Further, the first support member 25 or the support member 19 may be integrally formed.

  The plurality of peeling plates 27 are rectangular, and are cut out from a substantially isosceles triangular portion having one corner as a vertex, and a metal plate having a protruding portion 27a on the opposite side of the cut-out portion. is there. The protruding portion 27a protrudes at an acute angle, and its tip is rounded. Further, it is desirable that the peeling plate 27 has such a thickness that the peeling plate 27 does not penetrate through the mount and printing omission due to the gap does not occur even if the mount is turned to give a pulling force. . In addition, the shape of the protrusion part 27a will not be specifically limited if the mount can be turned.

FIG. 4 is a perspective view when the label peeling mechanism 20 is attached to the platen roller 18. The rotating shaft 22 is rotatably attached to the notched portion of the attaching member 24. The peeling plate 27 is inserted into the gap between the plurality of main body rollers 23, and the rotating shaft 22 is rotatably disposed in the notch portion, and the protruding portion 27 a is downstream of the press contact portion of the thermal head 17 and the platen roller 18. The protruding portion 27 a is located on the side and protrudes radially outward of the main body roller 23.

  The printer 1 according to the first embodiment has the above-described configuration, and the label continuum L is supplied by the label supply unit 2. Is detected and then transferred to the label printing unit 4. In the label printing unit 4, the label continuum L is pressed by the thermal head 17 and the platen roller 18, the heating element of the thermal head 17 and the printing surface of the label continuum L come into contact with each other, and the position is set by receiving heat. Information is printed on the printing surface. After printing is performed, the label continuum L is transferred to the label peeling unit 5, the mount 12 is bent in the direction opposite to the transfer direction of the label continuum L via the label peeling mechanism 20, and the turning roller 21 and the platen The label 13 is peeled from the mount 12 and discharged from the mount discharge port 11 by being pressed and transferred to the label discharge port 10 by an appropriate pulling force to the roller 18.

  The operation of the label peeling unit 5 will be described in more detail. 5 is a cross-sectional view taken along the line II of FIG. In the label peeling unit 5, first, the label continuous body L printed by the label printing unit 4 is transferred to the peeling plate 27. Next, at a plurality of contact points A where the back surface of the mount 12 of the label continuum L comes into contact with the plurality of protrusions 27a, the mount is turned with the contact points A as fulcrums and pulled with an appropriate pulling force. The label is peeled off.

  As described above, according to Example 1, when a label is peeled from the mount, a stronger peeling force is required due to a larger label width and a larger adhesive force than a standard size label. Even if it exists, peeling performance will not be inferior by the bending etc. of the conventional peeling stick. Further, since the mount is supported and turned at a plurality of positions of the mount, rather than using the release rod to support and turn the mount on a straight line, the label can be peeled more stably. Further, since the mechanism is a mechanism for inserting the release plate into the gap between the platen rollers, it is sufficient that only the first and second support members and the protruding portion of the release plate have a space, and space can be saved as compared with the conventional release mechanism. .

DESCRIPTION OF SYMBOLS 1 Printer 2 Label supply part 3 Label detection part 4 Label printing part 5 Label peeling part 6 Control part 7 Main housing 8 Opening / closing cover 9 Hinge 10 Label discharge port 11 Mount discharge port 12 Band-shaped mount 13 Label 14 Label supply shaft 15 Light emitter 16 Light receiver 17 Thermal head 18 Platen roller 19 Support member 20 Label peeling mechanism 21 Turning roller 22 Rotating shaft 23 Main body roller 24 Mounting member 24a Bending portion 25 First support member 26 Second support member 27 Release plate 27a Protruding portion
L label continuum

Claims (3)

The axis,
A plurality of cylindrical body rollers arranged with a gap in the shaft,
A peeling mechanism that peels off the label from the mount of the label continuum transferred by the transfer roller,
The peeling mechanism is
A release plate disposed between the body rollers;
A support member for fixing the peeling plate against the rotation of the main body roller;
Have
At least a portion of the peeling plate on the downstream side in the transport direction of the label continuum has a protruding portion protruding outward in the radial direction of the main body roller. The peeling mechanism according to claim 1, wherein the protrusion has a plurality of contact points that come into contact with the back surface of the mount, and the mount is turned around the contact points. A printer that performs printing on a continuous label body in which a label is temporarily attached to a mount, and peels the printed label from the mount.
This printer
A platen roller having a shaft that is rotatably supported, and a plurality of cylindrical body rollers disposed with a gap in the shaft, and a thermal head disposed to face the platen roller;
A label printing section having
A peeling plate disposed between the main body rollers, and a support member that fixes the peeling plate against the rotation of the main body roller, and at least a part of the peeling plate on the downstream side in the transport direction of the label continuum Is a peeling mechanism having a protrusion protruding outward in the radial direction of the main body roller;
A printer comprising:

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