JPH0664893U - Turning member displacement mechanism for printer - Google Patents

Abstract

(57) [Abstract] [Purpose] Displace the turning member of the printer that turns the strip mount on the continuous label paper on which the desired information is printed and peels off the label temporarily attached to this strip mount. To provide a mechanism for doing so. A pair of support members 22 are provided at both ends of a turning member 21 for peeling off a label 3 provided at a front end portion of a printing device including a thermal head 14 and a platen roller 18.
The turning member 21 is loosely fitted in the slit 23 provided in the
Is the slit end a in the label issuing direction when the label is issued.
, The platen roller of the belt-shaped mount 2 is configured so that the continuous label paper 1 is back-fed by the reverse operation of the platen roller 18 at the time of label removal and is displaced to the slit end b in the label issuing reverse direction. The peeling property of the label is improved by increasing the contact area with 18 and absorbing the slack of the strip-shaped backing sheet 2 that is fed out.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a mechanism for displacing a strip-shaped base paper of continuous label paper in a printer and displacing a turning member for peeling a label temporarily attached on the base paper.

[0002]

[Prior art]

 Japanese Patent Publication No. 4-43797 (printer) is a conventional technique of this type. This technology prints on two types of paper, continuous paper and single-cut sheets, and has a first motor for feeding continuous paper and a second motor for feeding a predetermined amount of single-cut sheets. It is disclosed that after the completion of printing of a single-cut sheet moving in the vertical direction of the platen, the first motor, that is, the platen roller, is controlled to rotate in a reverse direction by a certain amount after the completion of printing of a single-cut sheet. Only the back feed technology of the platen roller is the prior art.

In a general printer that prints only continuous paper, after the predetermined information is printed on the label of continuous label paper, the label temporarily attached on the paper is peeled off by the turning action of the strip-shaped paper. After that, it is picked with a fingertip or the like, and this is manually attached to a desired article. On the other hand, the strip-shaped backing paper after peeling the label is often wound up by the backing paper winding device set in the machine. However, in the method of the present invention, when the winding device for the mount is set in the machine, the size of the device becomes large, and the cost increases due to the setting of the drive source, etc. It provides a cheap printer. Therefore, after removing the label, the unnecessary strip-shaped backing sheet is guided to the outside of the machine and cut into an appropriate length.

[0004]

[Problems to be solved by the device]

 In the external guide system for the strip-shaped mount as described above, the deflecting member at the time of peeling the label of the strip-shaped mount moves in the feeding direction by the feeding action of the label paper. Incidentally, in the system in which the mount winding device is provided in the machine, the surplus strip-shaped mount is wound by the winding device, so such a phenomenon does not occur.

For this reason, the strip-shaped mount is in a state of being separated from the platen roller, and the strip-shaped mount fed out of the machine has a slack.

[0006]

[Means for Solving the Problems]

 The turning member displacement mechanism of the present invention is provided with a pair of support members 22 having slits 23 in the vicinity of the printing device including the thermal head 14 and the platen roller 18, and the belt-shaped mount 2 is turned inside the slits 23. The turning member 21 for peeling off the temporarily attached label 3 is loosely fitted, and the platen roller 18 is further provided with a pressing roller 25 for elastically pressing the strip-shaped backing sheet 2 and feeding out the backing sheet. The member 21 is positioned at the slit end a in the label issuing direction at the time of issuing the label, and gives a reverse action to the platen roller 18 by the detection of the label presence / absence sensor 15 at the time of removing the issued label. The continuous label paper 1 is configured so as to be displaced to the slit end b in the label issuing reverse direction by the back feed action.

[0007]

[Action]

 The continuous label paper 1 sandwiched between the thermal head 14 and the platen roller 18 is peeled off by the turning action of the belt-shaped mount 2 after desired information is printed on the label 3 temporarily attached to the belt-shaped mount 2. To do. At this time, the deflecting member 21 moves to the slit end a in the issuing direction, and as shown in FIG. 3, the strip-shaped mount 2 is separated from the platen roller 8, and the strip-shaped mount 2 is attached to the platen roller 18. It is fed out of the machine by a pressing roller 25 that is elastically pressure-bonded. Only by the pressing force of the driven type pressing roller 25, a slip action occurs between the pressure-sensitive adhesive roller 25 and the strip-shaped mount which has been subjected to the silicon treatment, and bending occurs. Due to the pulling action of the belt-shaped backing sheet 2 in which the deflection has occurred in this way, the label peeling in the next stage is bad.

Next, the issued label 3 is picked off with a fingertip and attached to a desired article. Thus, the presence / absence sensor 15 of the label detects that the label has been removed, and gives the platen roller 18 a certain amount of reverse rotation. Then, the continuous label paper 1 is back-fed. Therefore, the diverting member 21 diverting the strip-shaped backing sheet 2 is displaced to the slit end b in the direction opposite to the labeling. Due to this displacement, as shown in FIG. 3, the slackened strip-shaped backing sheet 2 comes into contact with the platen roller 18 to increase the contact area, absorb the deflection, and improve the next label peeling.

[0009]

【Example】

 Hereinafter, the displacement mechanism of the turning member in the printer of the present invention will be described with reference to the accompanying drawings. As shown in the overall schematic view of FIG. 1, a printer main unit 10 is provided with a lid 11 which is opened and closed by a pivot 12, and a supply shaft 13 is formed on the lid 11 side. The continuous label paper 1 wound in a roll is set.

As shown in FIG. 5, the continuous label paper 1 is a label 3 having a prescribed shape in which an adhesive 4 is applied to the back surface of a strip-shaped mount 2 whose surface is applied with a release agent such as silicon. However, the label 3 has a structure in which the label 3 is temporarily attached at equal intervals in the longitudinal direction, and desired information is printed on the label 3.

Further, the thermal head 14 opposite to the platen roller 18 fixed to the machine 10 side is configured to be openable / closable with respect to the platen roller 18 by operating the opening / closing member 30. The label type sensor 15 is located in front of the thermal head 14 (downstream side of label feeding) and detects the presence or absence of the label 3 and behind the thermal head 14 (upstream side of label feeding). Transmissive sensors 16 for detecting the are respectively arranged.

Next, as shown in detail in the perspective view of the main part of FIG. 2, the operation diagram of the main part of FIG. 3 and the plane of the main part of FIG. 4, the label 3 is peeled from the strip-shaped mount 2 on the platen roller 18. A turning member 21 made of a pin member having a small diameter is arranged in close proximity. Both ends of the turning member 21 are loosely fitted in slits 23 which are slightly elongated in the feeding direction of the label paper, which is formed in a pair of supporting members 22 attached to the main body 10 side. Further, a label receiving plate 24 is attached so as to be connected to both the supporting members 22.

The platen roller 18 is pressed by a pressing roller 25 that presses the strip-shaped backing sheet 2 to guide it. The pressure roller 25 is press-fitted and held to the platen roller 18 by attaching portions 27 on both sides of the arm with a cutter 26 bent and attached to both ends of the pressure roller 25, and a stop member 29 on the side of the machine 10. This is the elastic action of the erected spring 28.

Next, the operation of this mechanism will be described. With reference to FIGS. 1 to 4, the continuous label paper 1 wound around the supply shaft portion 13 in a roll shape is set on the main unit 10 in a state in which the lid 11 is opened with the pivot 12 as the rotation center. The continuous label sheet 1 can be easily inserted between the thermal head 14 and the platen roller 18 with the opening / closing member 30 opened and the thermal head 14 separated from the platen roller 18. Next, at the leading end portion of the continuous label paper 1, the strip-shaped mount 2 is hung around the diverting member 21 and turned while the label 3 is peeled off from the strip-shaped mount 2 in a number of 2 to 3. Next, the arm 26 with a cutter is pulled toward the front against the spring 28, so that the pressing roller 25, which is elastically pressed against the platen roller 18, is separated from the platen roller 18, and the strip-shaped mount 2 is passed between these members. .

Next, the pressing roller 25 is returned to its original position to bring the strip-shaped backing sheet 2 into a pressure-bonded state to the platen roller 18, and then the opening / closing member 30 is closed to move the thermal head 14 to the platen roller 1 via the continuous label sheet 1. The continuous label paper 1 is set by pressing 18 and by closing the lid 11.

Next, when a desired data is input from a personal computer (not shown) connected to the machine 10, the stepping motor 19 is operated, the drive is transmitted to the platen roller 18, and the thermal head 14 is used to print the continuous label paper 1. A desired print is made on the label 3. Incidentally, in detail, before this operation, the continuous label paper 1 is moved to the beginning by the transmissive sensor 16. That is, the transmissive sensor 16 is set to detect the distance from the leading edge to the trailing edge of the first label 3 of the label sheet 1 and start printing from the leading edge of the label 3 in the next stage.

Thus, the turning action of the turning member 21 of the strip-shaped mount 2 causes the preprinted label 3 to be issued outside the machine. At the time of issuing the label, the position of the turning member 21 is the slit end (a) of the slit 22 formed in the support member 22 in the label feeding direction, as shown by the solid line in FIG. Next, when the issued label 3 is removed with a fingertip or the like, the reflection type sensor 15 detects the absence of the label, and this signal is transmitted to the stepping motor 19 to cause the motor to reverse a certain amount. Therefore, this reverse rotation operation is transmitted to the platen roller 18, and the continuous label paper 1 is back-fed in the upstream direction of the continuous paper 1 by a certain amount (accurately, a position where a margin of about 20 m / m is formed at the upper end of the label). .

Thus, by the back feed of the continuous label paper 1, the position of the turning member 21 is retracted to the slit end b in the label issuing reverse direction, as shown by the alternate long and short dash line in FIG. Therefore, as is apparent from FIG. 3, since the deflecting member 21 is displaced toward the platen 18, the strip-shaped mount 2 has a large contact area with the platen roller 18, and the rotation of the pressure roller 25 pressed against the platen roller 18 is driven. And the rotation of the platen roller, the sheet is fed out of the machine 10. As a result, the peelability of the label that is peeled off from the strip-shaped mount 2 becomes good.

When the above operation is repeated in sequence to issue a large number of labels and the strip-shaped mount 2 after the peeling of the label 3 becomes longer than necessary, this mount is attached to the end of the cutter arm 26. Cut appropriately with the provided cutter.

[0020]

【effect】

 As described above, in the present invention, the deflecting member 21 is positioned at the slit end a in the label issuing direction when the label is issued, and is reversed to the platen roller 18 by the detection of the label presence / absence sensor 15 when the issued label is removed. Since the continuous label paper 1 is configured to be displaced to the slit end b in the label reverse direction by the back field effect of the continuous label paper 1, the strip-shaped mount 2 after the label peeling has a large contact area with the platen roller 18. Become. Therefore, there is an advantage that the label peeling is good by absorbing the slack of the unwound strip-shaped mount.

[Submission date] June 24, 1993

[Procedure Amendment 2]

[Document name to be amended] Statement

[Name of item to be corrected] 0002

[Correction method] Change

[Correction content]

[0002]

[Prior art]

 As a conventional technique of this type, there is Japanese Patent Publication No. 4-43793 (printer). This technology prints on two types of paper, continuous paper and single-cut sheets, and has a first motor for feeding continuous paper and a second motor for feeding a predetermined amount of single-cut sheets. It is disclosed that after the completion of printing a single-cut sheet that moves in the vertical direction of the platen, the first motor, that is, the platen roller, is controlled to rotate in the reverse direction according to the information in the storage means. Only the back feed technology of the platen roller is the prior art.

[Brief description of drawings]

FIG. 1 is a schematic explanatory view of an entire printer including a turning member displacement mechanism of the printer of the present invention.

FIG. 2 is a perspective view of an essential part of the present invention.

FIG. 3 is an explanatory view of the operation of the main part of the same.

FIG. 4 is a plan view of an essential part of the same.

FIG. 5 is a perspective view of a continuous label sheet used in the mechanism of the present invention.

[Explanation of symbols]

 1 Continuous label paper 2 Belt-shaped backing paper 3 Label 10 This machine 11 Lid 14 Thermal head 15 Label presence sensor (reflection type) 16 Label cue sensor (transmissive type) 18 Platen roller 22 Support member 23 Slit a Slit edge in the label issuing direction b Label issuance Reverse slit end 25 Pressing roller

Claims (1)

[Scope of utility model registration request] 1. A pair of supporting members with slits are provided at the front end of a printing apparatus including a thermal head and a platen roller, and a turning member for turning a strip-shaped backing sheet and peeling off a temporarily attached label is provided. And a pressing roller which is loosely fitted in the slit and further elastically pressure-bonded to the platen roller to transfer the strip-shaped backing sheet, wherein the deflecting member is located at the slit end in the label issuing direction at the time of issuing the label. When removing the label,
Displacement of the turning member of the printer, characterized in that the platen roller is provided with a reverse action by the detection of the label presence / absence sensor, and is displaced to the slit end in the label issuing reverse direction by the backfeed action of the continuous label paper. mechanism.