JP2004262612A - Paper winding device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a paper winding device capable of improving operability by simplifying setting of a print medium and capable of preventing damage of a label caused by meandering. <P>SOLUTION: A swing roller 12 is a guide roller positioned just before a winding shaft 11 so as to guide the print medium, which is discharged from a printer, to the winding shaft 11. A pair of guide plates 19 constituted to adjust a space in the longitudinal direction is mounted on the swing roller 12 and the meandering of the print medium is restrained by a pair of the guide plates 19. Both end portions of the swing roller 12 are retained by one end portions of a pair of arms 20 respectively. The other end portions of a pair of the arms 20 are pivoted by a support shaft 22 retained by a pair of bearings 21 stood on a bottom plate 15, and the swing roller 12 can revolve by using the support shaft 22 as an axis. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a paper winding device that is mounted outside a printer that prints predetermined information on a print medium such as a label and winds a print medium discharged from the printer.
[0002]
[Prior art]
FIG. 4 is a schematic perspective view showing the configuration of a conventional paper winding device.
A conventional paper take-up device 1 is attached to the outside of a printer (not shown) such as a label printer, and is fixed and positioned by a fixing plate 2, and prints and discharges predetermined information by the printer. And a guide shaft 5 and guide rollers 5 and 6 (for example, see Patent Document 1).
[0003]
The take-up shaft 4 has one end protruding in a state of being cantilevered and the other end being an open end. The first guide plate 7 and the second guide plate 8 are fitted from the open end side. A first guide plate 7 and a second guide plate 8 are slidably mounted along the longitudinal direction of the winding shaft 4.
[0004]
When the printing medium 3 discharged from the printer is wound by the paper winding device 1, the first guide plate 7 is positioned and fixed to the winding shaft 4, and the second guide plate 8 is wound on the winding shaft 4. The core 9 for winding the printing medium 3 is pushed in from the open end side of the winding shaft 4 in a state where the core 3 is detached from the winding shaft 4, and is mounted on the first guide plate 7 such that one side end of the core 9 abuts. . Then, the print medium 3 is pulled out to the take-up shaft 4 via the guide rollers 5 and 6, and wound around the core 9. Further, the second guide plate 8 is mounted and fixed so as to be in contact with the other side end of the winding core 9 from the open end side of the winding shaft 4, and the winding shaft 4 is driven by a motor (not shown). The print medium 3 is wound around the winding core 9 while being rotated by the source, while preventing the first guide plate 7 and the second guide plate 8 from breaking.
[0005]
[Patent Document 1]
JP-A-11-139634 [0006]
[Problems to be solved by the invention]
However, in the related art, the second guide plate 8 needs to be attached and detached when attaching the core 9 and winding the print medium 3 or when removing the print medium 3 wound on the core 9. There is a problem that the work of setting the medium 3 becomes complicated and operability is not good.
[0007]
Furthermore, in the prior art, the first guide plate 7 and the second guide plate 8 are provided on the take-up shaft 4 to prevent the print medium 3 from being broken. The length of the plate 8 is formed to be equal to or larger than the winding diameter of the print medium 3 to be wound around the winding core 9, and when the print medium 3 has meandered, the first guide plate 7 and the second guide plate 8 This may damage the end of the print medium 3. In particular, when the print medium 3 is a label without a mount called a non-separable label, there is a problem that once it has meandered, it is difficult to return to its original state, and the end of the label is easily broken.
[0008]
The present invention has been made in view of such a problem, and an object of the present invention is to improve the operability by simplifying the work of setting a print medium, and furthermore, to improve the label quality caused by meandering. An object of the present invention is to provide a paper winding device capable of preventing breakage.
[0009]
[Means for Solving the Problems]
The present invention has the following configurations in order to solve the above problems.
The gist of the invention according to claim 1 is a paper winding device for winding a printing medium discharged from a printer around the winding shaft by rotating the winding shaft, wherein the printing medium is wound on the winding shaft. A pair of guide plates for restricting meandering of the print medium are provided on a guide roller that guides the print medium.
According to a second aspect of the present invention, there is provided the paper winding device according to the first aspect, wherein the guide roller is located immediately before the winding shaft.
According to a third aspect of the present invention, the guide roller is held by a pair of arms pivotally supported by a support shaft.
According to a fourth aspect of the present invention, there is provided the paper winding device according to any one of the first to third aspects, wherein the guide roller has a function of applying tension to the print medium.
The gist of the invention according to claim 5 is that the paper winding device according to any one of claims 1 to 4, further comprising an adjustment mechanism that adjusts a distance between the pair of guide plates by center distribution. Exist.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0011]
FIG. 1 is a schematic perspective view illustrating a configuration of an embodiment of a paper winding device according to the present invention, and FIG. 2 is a schematic side view illustrating a configuration of an embodiment of the paper winding device according to the present invention. is there. 3A and 3B are diagrams illustrating a configuration of the swing roller illustrated in FIG. 1, where FIG. 3A is a top view and FIG. 3B is an XY cross-sectional view illustrated in FIG.
[0012]
The paper take-up device 10 of the present embodiment is fixed and positioned outside the printer 30 such as a label printer by engaging the foot portion of the printer 30 and the engagement recess 25, and the printer 30 has a predetermined position. An apparatus for winding a printing medium 3 such as a label continuum on which information is printed and discharged. Referring to FIGS. 1 and 2, mainly a winding shaft 11, a swing roller 12, a guide And a roller 13.
[0013]
The take-up shaft 11 has one end projecting from the side surface of the main body case 14 in a state of being cantilevered, the other end being an open end, and a leaf spring 16 as a fitting member fixedly provided. A groove 17 for directly locking the print medium 3 to the winding shaft 11 is formed.
[0014]
The leaf spring 16 is used to wind the printing medium 3 around the winding core 9. When the winding core 9 around which the printing medium 3 is wound is mounted on the winding shaft 11, the winding core 9 is wound so as not to move. The winding core 9 is provided so as to be fitted to the shaft 11 and to be rotated by the rotation drive of the winding shaft 11 without idling.
[0015]
The groove 17 is used when the print medium 3 is directly wound around the take-up shaft 11, and is substantially perpendicular to the direction perpendicular to the side surface of the main body case 14, that is, the direction in which the print medium 3 discharged from the printer 30 is discharged. It is formed in a direction (hereinafter, referred to as a longitudinal direction), and clamps the end of the print medium 3 at the beginning of winding with the pin 18.
[0016]
The swing roller 12 is a guide roller located just before the take-up shaft 11 to guide the print medium 3 discharged from the printer 30 to the take-up shaft 11. The swing roller 12 has an adjustable longitudinal interval. Are provided, and both ends of the swing roller 12 are respectively held by one ends of a pair of arms 20 so as to be parallel to the winding shaft 11. The other ends of the pair of arms 20 are supported by a support shaft 22 held by a pair of bearings 21 erected on a bottom plate 15 extending from the bottom surface of the main body case 14. , About the support shaft 22.
[0017]
Referring to FIGS. 3A and 3B, a spur gear 27 is fixedly provided at the center of the swing roller 12 in the longitudinal direction, and a pair of guide plates 19 provided on the swing roller 12 are provided. The racks 28 that mesh with the spur gears 27 are fixedly provided. By the slide mechanism including the rack 28 and the spur gear 27, the pair of guide plates 19 can adjust the interval in the longitudinal direction by center distribution, and the print medium 3 is printed by the printer 30 by center distribution and carried out. Can be dealt with. Although not shown, the swing roller 12 is provided with a scale on which the width of the print medium 3 which is assumed to be wound is printed, so that the pair of guide plates 19 can be easily adjusted to the width of the print medium 3. Can be adjusted.
[0018]
The guide roller 13 is a guide roller that guides the print medium 3 discharged from the printer 30 to the swing roller 12, and is protruded from the side surface of the main body case 14 with one end being cantilevered. It is a free roller.
[0019]
The main body case 14 houses a drive source such as a motor for rotating the winding shaft 11 forward or backward, a control circuit for controlling the operation of the drive source, and the like. A lower limit position sensor 23 for detecting a lower limit position of the arm 20 indicated by a solid line in FIG. 2 and an upper limit position sensor 24 for detecting an upper limit position of the arm 20 indicated by a dotted line in FIG. When the lower limit position sensor 23 detects that the arm 20 has reached the lower limit position by the control circuit housed in the main body case 14, the rotation of the winding shaft 11 is started. When it is detected that 20 has reached the upper limit position, the rotation of the winding shaft 11 is stopped.
[0020]
When the printing medium 3 discharged from the printer 30 is wound by the paper winding device 10, the printing medium 3 is pulled out to the winding shaft 11 via the guide roller 13 and the swing roller 12, and the winding of the printing medium 3 is started. The end is wound around the winding core 9 mounted on the winding shaft 11, or the printing medium 3 is wound directly around the winding shaft 11 by sandwiching the end of the printing medium 3 between the groove 17 and the pin 18.
[0021]
Next, the interval between the pair of guide plates 19 provided on the swing roller 12 is adjusted according to the width of the print medium 3, and the winding start switch (not shown) is pressed to start winding the print medium 3.
[0022]
The winding speed of the printing medium 3 by the rotation of the winding shaft 11 is set to be higher than the discharging speed of the printing medium 3 from the printer 30, and the arm 20 (swinging) is moved to the lower limit position shown by the solid line in FIG. When the roller 12) is positioned and detected by the lower limit position sensor 23, the rotation of the take-up shaft 11, that is, the take-up of the print medium 3 starts, and the rotation of the take-up shaft 11 resists the weight of the swing roller 12. The arm 20 (swing roller 12) is pulled up to the upper limit position shown by the solid line in FIG. When the arm 20 (swing roller 12) is pulled up to the upper limit position, the rotation of the winding shaft 11 is stopped by being detected by the upper limit position sensor 24. When the print medium 3 is discharged from the printer 30 with the rotation of the winding shaft 11 stopped, the arm 20 (swing roller 12) is lowered to the lower limit position by the weight of the swing roller 12, and the rotation of the winding shaft 11 is stopped. Be started.
[0023]
By rotating the take-up shaft 11 intermittently and taking up the print medium 3 in this way, the print medium 3 is prevented from meandering by the pair of guide plates 19 provided on the swing roller 12, and the print medium 3 is swung. The print medium 3 can be wound up with a constant tension applied to the print medium 3 by the weight of the roller 12.
[0024]
In the present embodiment, the print medium 3 is configured to have a constant tension by its own weight. However, the swing roller 12 is biased by a biasing means such as a spring so that the print medium 3 is fixed to the print medium 3. You may comprise so that tension may be applied.
[0025]
As described above, according to the present embodiment, by providing the swing roller 12 with the pair of guide plates 19 that regulate the meandering of the print medium 3, it is not necessary to provide the guide plate on the winding shaft 11. Thus, the operation of setting the print medium can be simplified and the operability can be improved.
[0026]
Further, according to the present embodiment, by providing the swing roller 12 with the guide plate 19 for restricting the meandering of the print medium 3, the meandering of the print medium 3 can be efficiently prevented, and the pair of swing rollers 12 The guide plate 19 does not need to be unnecessarily large as long as it is equal to or greater than the thickness of the print medium 3, so that label damage due to the guide plate 19 can be prevented, and label breakage due to meandering of the print medium 3 can be prevented. The effect that it can prevent is produced.
[0027]
Further, according to the present embodiment, an example is described in which the adjustment mechanism for adjusting the interval between the pair of guide plates 19 provided on the swing roller 12 by center distribution is provided, but one of the widths of the print medium is used as a reference (fixed). ) Can also be applied to the case where the other is adjusted according to the width of the print medium. In this case, it is easy to remove and fix the rack of one guide plate and adjust the other guide plate. Can be set to
[0028]
It should be noted that the present invention is not limited to the above embodiments, and it is clear that each embodiment can be appropriately modified within the scope of the technical idea of the present invention. Further, the number, position, shape, and the like of the constituent members are not limited to the above-described embodiment, and can be set to numbers, positions, shapes, and the like suitable for carrying out the present invention. In the drawings, the same components are denoted by the same reference numerals.
The printing medium can be applied to a printable medium such as a label continuum in which a plurality of labels are temporarily attached to a band-shaped backing sheet, or a band-shaped label (a label without a backing sheet) that does not require a backing sheet.
[0029]
【The invention's effect】
The paper take-up device of the present invention provides a pair of guide plates for regulating the meandering of the print medium on the swing roller, which eliminates the necessity of providing a guide plate on the take-up shaft. And the operability can be improved.
[0030]
Further, the paper take-up device of the present invention can efficiently prevent the print medium from meandering by providing the swing roller with a pair of guide plates that regulate the meandering of the print medium. If the thickness is greater than the thickness of the print medium, it is not necessary to increase the thickness more than necessary, so that the label can be prevented from being damaged by the guide plate, and the label can be prevented from being damaged due to the meandering of the print medium. To play.
[0031]
Further, the paper take-up device of the present invention is provided with an adjusting mechanism for adjusting the interval between a pair of guide plates provided on the swing roller at the center distribution, so that the print medium is printed by the printer at the center distribution and discharged. This has the effect that it can be easily set.
[Brief description of the drawings]
FIG. 1 is a schematic perspective view showing a configuration of an embodiment of a paper winding device according to the present invention.
FIG. 2 is a schematic side view illustrating a configuration of an embodiment of a paper winding device according to the present invention.
3A and 3B are diagrams illustrating a configuration of a swing roller illustrated in FIG. 1, wherein FIG. 3A is a top view and FIG. 3B is an XY cross-sectional view illustrated in FIG.
FIG. 4 is a schematic perspective view showing a configuration of a conventional paper winding device.
[Explanation of symbols]
1 Paper take-up device (conventional)
2 Mounting and Fixing Plate 3 Printing Medium 4 Take-Up Shafts 5 and 6 Guide Roller 7 First Guide Plate 8 Second Guide Plate 9 Core 10 Paper Winding Device (Embodiment)
DESCRIPTION OF SYMBOLS 11 Winding shaft 12 Swing roller 13 Guide roller 14 Main case 15 Bottom plate 16 Leaf spring 17 Groove 18 Pin 19 Guide plate 20 Arm 21 Bearing 22 Support shaft 23 Lower limit position sensor 24 Upper limit position sensor 25 Engagement recess 27 Spur gear 28 Rack 30 Printer

Claims (5)

A paper winding device that winds a print medium discharged from a printer around the winding shaft by rotating the winding shaft,
A paper winding device, wherein a pair of guide plates for regulating meandering of the print medium is provided on a guide roller for guiding the print medium to the winding shaft. The paper winding device according to claim 1, wherein the guide roller is located immediately before the winding shaft. 3. The paper winding device according to claim 1, wherein the guide roller is held by a pair of arms supported by a support shaft. The paper winding device according to claim 1, wherein the guide roller has a function of applying tension to the print medium. The paper winding device according to any one of claims 1 to 4, further comprising an adjustment mechanism that adjusts a distance between the pair of guide plates by center distribution.

Images