JP2000313554A - Roll paper winding mechanism, roll paper winding device having the winding mechanism, and printing device using the roll paper winding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a roll paper winding mechanism capable of maintaining a proper wound shape without tilting a winding shaft, and carrying out a fine setting in a consideration of the type of paper to be used and the behavior of paper on a platen, and to provide a roll paper winding device having the winding mechanism, and a printing device using the roll paper winding device. SOLUTION: This roll paper winding mechanism is constituted such that roll paper 10 supplied continuously to a platen 31 at a prescribed wrapping angle is wound by a winding shaft placed behind the platen. A winding guide 39 with a width narrower than the width of the roll paper protruding in a thickness direction of the roll paper to press the surface of the roll paper is provided between the platen and the winding shaft.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roll paper winding mechanism for winding a roll paper continuously supplied to a platen around a winding shaft disposed behind the platen, and more particularly, to stacking a plurality of sheets. When transporting copied paper rolls,
The present invention relates to a roll paper winding mechanism for winding a part of a recording paper around a winding shaft after information recording on a platen, a roll paper winding apparatus having the winding mechanism, and a printing apparatus using the roll paper winding apparatus.

[0002]

2. Description of the Related Art Conventionally, for example, in a bill, a delivery note, and other various information items, it is required that information described in a delivery note on a delivery side and a customer side completely match. . In this way, it is essential to eliminate any discrepancies in the contents of extremely important information records other than invoices and delivery notes.

[0003] In response to such a demand,
For example, a plurality of recording papers are superimposed, printing is performed by impact printing, pressure printing is performed using a so-called impact printing type printer, and the same information is simultaneously recorded on the plurality of superimposed recording papers. That is being done.
As a recording paper for copying used in this type of printer, there is a copy roll paper which is configured to be long and wound in a roll shape.

In order to supply the copy roll paper to the printer, the copy roll paper is rotatably held, and the recording paper drawn from the copy roll paper is conveyed by being pulled by a platen of the printer. A roll paper winding device having a winding mechanism for winding a part of the recording paper is used. This roll paper take-up device cuts out a part of the recording paper and sends it out as recording paper so that it can be used as individual information details, while winding other recording paper into a roll for storing information. It is configured to store.

[0005] In this roll paper winding device, in order to wind the storage roll paper, for example, the roll paper is taken up in a roll shape using a detachable take-up shaft, and the wound roll paper is removed from the take-up shaft. Store as appropriate.

[0006]

As described above, the roll paper wound around the winding shaft is pulled out from the winding shaft and stored. For this reason, the winding shaft having a one-sided flange structure is convenient and employed. In the winding shaft of the one-sided flange, the "rolled form" of the roll paper is wound up toward the flange side in order to wind it up well. To this end, the winding shaft is arranged to be inclined. Further, appropriate tension is applied by a torque limiter in order to prevent “roll-up” in the winding state.

As described above, in order to maintain a good "winding shape" by tilting the winding shaft, the range of the appropriate value of the tilt amount is narrow, and it is difficult to set the range. In particular, at present, it is almost impossible to make fine settings in consideration of the type of paper to be used and the behavior of the paper on the platen. Further, when the amount of inclination of the take-up shaft is increased, for example, when the tension is increased in the tension adjustment by the torque limiter, there is a problem that the paper is shifted laterally on the platen.

[0008] The present invention has been made in view of the above problems, and can maintain a good "winding shape" without tilting the winding shaft, the type of paper used, the behavior of paper on a platen, and the like. A roll paper take-up mechanism that can be set finely in consideration and does not induce lateral displacement of the paper on the platen even if the tension is increased in tension adjustment by the torque limiter, and a roll paper take-up mechanism having the take-up mechanism It is an object of the present invention to provide an apparatus and a printing apparatus using the roll paper winding apparatus.

[0009]

According to the roll paper winding mechanism of the present invention, a roll paper continuously supplied to a platen at a predetermined wrap angle is wound around a winding shaft disposed behind the platen. A roll paper take-up mechanism configured to be projected between the platen and the take-up shaft with a width smaller than the width of the roll paper in a roll paper thickness direction to press the roll paper surface. A guide is provided (claim 1), whereby the object can be achieved.

In the above-mentioned roll paper winding mechanism according to the present invention, it is preferable that the winding guide is provided with a flange for forming a winding roll on one side of the winding shaft. It is characterized in that it is arranged near the side where the flange is provided (Claim 2), and that the winding guide is configured to be movable in the roll paper width direction (Claim 3).

[0011] In the roll paper winding device having the roll paper winding mechanism according to the present invention, the roll paper is a copy roll paper in which a plurality of recording papers are overlapped so that the same information can be recorded simultaneously. A roll paper take-up device that holds rotatably in a roll state, draws out and supplies the platen to a platen, and after recording information on the platen, winds a part of the recording paper around a take-up shaft. A separator provided with a delivery unit that conveys a part of the recording paper to a side opposite to a winding side is provided, and the separator protrudes in a roll paper thickness direction with a width smaller than the width of the roll paper. Further, a winding guide for pressing the surface of the roll paper is provided (claim 4), whereby the object can be achieved.

In the roll paper winding device having the above-mentioned roll paper winding mechanism according to the present invention, it is characterized in that the separator is rotatably provided with a rotation support shaft.

[0013] A printing apparatus using the roll paper winding device according to the present invention is provided with a separator provided with a delivery portion for transporting a part of the recording paper after information recording to a side opposite to a winding side. The separator is provided with a winding guide that projects in the roll paper thickness direction with a width smaller than the width of the roll paper and presses the roll paper surface (Claim 6). The above object can be achieved.

(Operation) According to the roll paper winding mechanism according to the present invention, the roll paper continuously supplied to the platen with a predetermined wrap angle is wound on a winding shaft disposed behind the platen. In the roll paper winding mechanism configured as described above, a winding guide that projects between the platen and the winding shaft in a roll paper thickness direction with a width smaller than the width of the roll paper, and presses the roll paper surface. According to the configuration provided with, the contact of the winding guide with the roll paper makes it possible to appropriately bias the roll paper in the width direction (specific direction). It is possible to keep the "winding shape" by holding it down. Further, since the urging of the roll paper in the width direction can be accurately performed, the lateral displacement of the paper on the platen caused by the excessive urging can be suppressed. (Claim 1)

Further, in the above-mentioned roll paper winding mechanism according to the present invention, according to the configuration in which the winding shaft is provided with a flange for forming a winding roll on one side of the shaft, the winding guide is formed by the flange. , The roll paper to be wound can be urged to contact the flange side. (Claim 2)

In the roll paper winding mechanism according to the present invention, according to the configuration in which the winding guide is movable in the width direction of the roll paper, the bias of the roll paper in the width direction is adjusted by moving the winding guide. Can be adjusted.
(Claim 3)

According to the roll paper winding device having the roll paper winding mechanism according to the present invention, the roll paper is a copy roll paper in which a plurality of recording papers are overlapped so that the same information can be recorded simultaneously. A roll paper take-up device that rotatably holds and pulls out the recording paper on a take-up shaft after the information is recorded on the platen. A part of the recording paper, a separator provided with a delivery unit that conveys the opposite side to the take-up side, the separator has a width smaller than the width of the roll paper in the roll paper thickness direction. By providing a winding guide that protrudes and presses the surface of the roll paper, it is possible to simultaneously operate the contact of the winding guide with the roll paper by operating the separator. Operability is not only good, it is possible to prevent the complication of the apparatus structure. (Claim 4)

In the roll paper winding device having the roll paper winding mechanism according to the present invention, according to the configuration in which the separator is rotatably provided with the rotation support shaft, the roll paper is opened by opening the separator. Easy to set,
By closing the separator, the winding guide can be pressed against the roll paper. (Claim 5)

According to the printing apparatus using the roll paper winding device according to the present invention, a part of the recording paper after recording the information is
A separator provided with a delivery unit that conveys to the side opposite to the winding side is provided, and the separator projects in the roll paper thickness direction with a width smaller than the width of the roll paper,
Since the winding guide that presses the surface of the roll paper is provided, the roll paper can be urged in the width direction by contact of the winding guide with the roll paper. (Claim 6)

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a printing apparatus using a roll paper winding device according to the present invention will be described below in detail with reference to the drawings. FIG. 1 is a schematic view showing a first embodiment of a printing apparatus using a roll paper winding device according to the present invention. FIG. 2 is a main part perspective view showing a part of a winding shaft and a separator used in the roll paper winding device. FIG. 3 is a main part perspective view showing a part of a winding shaft and a separator in a second embodiment of a printing apparatus using the roll paper winding apparatus according to the present invention.

(First Embodiment) An outline of the configuration of a printing apparatus using a roll paper winding device in the present embodiment will be described. As shown in FIG. 1, the roll paper winding device 1 used in the printing device 3 of the present embodiment includes a plurality of recording papers (copy roll paper 10 wound in a superposed state) so that the same information can be recorded simultaneously. Is continuously drawn out to the printing apparatus 3 side. The roll paper winding device 1 according to the present embodiment has a base frame 1a.
One end 2a (the lower left end in FIG. 1) of the printer 3 is attached to a mounting port 3a opened along the platen 31 of the printer 3.
It is suitably fixed so that it can be inserted and put on, and is detachably mounted.

The roll paper winding device 1 has a winding shaft 35 rotatably supported by the base frame 1a (see FIG. 2).
The first gear 61 meshing with the first gear 51 and the first gear 6
1 and a first pulley 6 supported by one end 2a of the base frame 1a.
Pulley 66 connected to the second pulley 66 by a belt 70 and a second gear 65 provided integrally with the second pulley 66
And

On the other hand, in the printing apparatus 3, the second
A connection gear 31b meshable with the gear 65 is provided, and a pinion 31a for connecting the connection gear 31b to a drive system of the platen 31 is provided. Therefore, the operation (rotation) of the platen 31 of the printing device 3 and the operation of the winding shaft 35 of the roll paper winding device 1 are linked by attaching the roll paper winding device 1 to the mounting opening 3a.

Further, the roll paper winding device 1 according to the present embodiment comprises, for example, three recording papers 10A, 10B,
A roll paper holding unit 11 for rotatably holding the copy roll paper 10 wound in a state in which C is superimposed, and a pressing unit 13 for appropriately applying pressure to the drawn recording papers 10A, 10B, and 10C. It has. The roll paper holding unit 11 rotatably holds the copy roll paper 10 and applies, for example, a back tension of appropriate strength to the axis 15 of the copy roll paper 10 by the brake unit 14. The pressing unit 13 is, for example, the recording paper 10A, 10B, 10
C, the uppermost pressing portion 17 held by the upper support plate 21 so as to press the uppermost recording paper 10A from above.
And the lowermost recording paper 1 of the recording papers 10A, 10B, and 10C
And a lowermost pressing portion 19 held by a base plate 22 so as to press 0C from below.

The upper support plate 21 is a plate-like member provided on the side of the L-shaped rotary lever 20 and is configured to be movable with respect to the base frame 22. That is, the rotary lever 20 is positioned on the side of the apparatus, and has an L-shaped bent portion supported by the rotary shaft 23, and a vertical portion thereof serves as a handle 24.
The upper support plate 21 is attached to the tip of the side portion.
Extend so as to be able to face the base plate 22. In the base frame 1a, a hole 25, which is located just below the copy roll paper 10, and is a receiving portion of an appropriate size for receiving the slack portion of the recording paper 10A, 10B, 10C.
Is provided.

As shown in FIG. 1, a guide section 33 for guiding the recording papers 10A, 10B and 10C to a platen 31 serving as a printing area of the printing apparatus 3 is provided downstream of the pressing section 13 described above.
And so on. In the roll paper winding device 1 in the present embodiment, a separator for separating the recording paper 10A on the winding side and the recording papers 10B and 10C on the non-winding side among the three recording papers 10A, 10B and 10C. 34 are provided. At the rear side of the separator 34, a take-up shaft 35 for taking up the separated take-up recording paper 10A is provided.

As shown in FIG. 1, the take-up shaft 35 is detachably and rotatably mounted on the rear side of the separator 34. The winding shaft core 36 of the winding shaft 35 in the present embodiment is arranged parallel to the platen 31 without being inclined. As described above, the take-up shaft 35 is rotated by the driving system of the printing apparatus 3 so that the gear 51 is rotated, and the constricted portion 55 on the other end side is opened upward.
(Shown by imaginary lines in FIG. 1), and can take up the continuous paper.

As shown in FIG. 2, the winding shaft 35 has a flange 50 on the side close to the gear 51, and is configured to be able to wind the roll paper along the flange 50. Then, the rolled roll paper 10A is
It is configured such that it can be pulled out along the winding axis to the side opposite to the flange 50.

The winding shaft 35 is provided on the outer peripheral surface 36a of the winding shaft core 36 with a plurality of ridges 37, 38, 39 extending in the axial direction so as to partially contact the inner surface of the roll paper 10A. ing. In addition, as shown in FIG. 3, the reduced diameter ridge 38 can insert the leading end 11 of the roll paper 10A (can be received).
It has a slit 38c.

The roll paper take-up mechanism according to the present embodiment is configured such that, of the roll papers 10A, 10B and 10C continuously supplied to the platen 31 at a predetermined wrap angle, the roll paper 10A separated at the leading end of the separator 34 is used. ,
While being guided by the winding guide 39, the winding shaft 3
5. That is, the winding guide 39 is provided between the platen 31 and the winding shaft 35.
It is configured to protrude in the roll paper thickness direction with a width smaller than the width of the roll paper 10A, and press the roll paper surface.

According to the configuration in which the winding guide 39 is provided closer to the flange than the center of the paper width, the contact of the winding guide 39 with the roll paper 10A causes the width direction of the roll paper 10A (toward the flange 50). Direction). This biasing can be performed more appropriately than the configuration in which the winding shaft core 36 is provided in an inclined manner, and the "rolling appearance" can be satisfactorily adjusted by suppressing the winding deviation of the roll paper 10A. Furthermore,
Since the urging of the roll paper 10A in the width direction can be properly performed, the paper (10) on the platen 31 caused by excessive urging can be obtained.
A, 10B, 10C) can be suppressed.
Therefore, the roll paper 10 </ b> A that is being wound can be urged to contact the flange 50 side.

In the present embodiment, after information is recorded on the platen 31, a part (10A) of the roll paper 10 is wound around the winding shaft 35 and, at the same time, is sent out to the side opposite to the winding side. A separator 34 having a portion 38 is provided, and a winding guide 39 is provided on the separator 34. With such a configuration, the closing operation of the rotating operation of the separator 34 (the operation in the direction of the arrow B) and the operation of abutting the winding guide 39 on the roll paper 10A can be performed by one operation. Good operability when setting.

The separator 34 is supported rotatably about a rotation shaft 45. Then, the non-winding-side recording papers 10B and 10C discharged from the recording area are sent to the front of the printing apparatus 3 through the curved lower surface of the return portion 38, and provided near the separator 34 so as to be opened and closed. It can be appropriately cut by the sharp tip of the cover 7.

The platen 31 is connected to the recording paper 10A,
The rotation is controlled by appropriate driving means (not shown) in accordance with the recorded contents for 0B and 10C. The rotating rollers 36 and 37 are arranged in contact with the platen 31, and the recording papers 10A, 10B and 10C are passed between the platen 31 and the rotating rollers 36 and 37. The recording paper 10A, 10B, and 10C are pulled by the rotation of the platen 31 in the clockwise direction in the drawing, and the copy roll paper 10 is pulled.
Drawn from.

(Second Embodiment) FIG. 3 shows a winding shaft and a part of a separator according to another embodiment of the present invention. Note that, in FIG. 3, the same components as those in the configuration shown in FIG. The characteristic feature of the second embodiment is that the winding guide 69 is movable in the roll paper width direction. That is, in the winding guide 69 in the present embodiment, the locking shaft 70 is provided on the side opposite to the contact surface side with the roll paper 10 </ b> A. Penetrate,
It is provided movably in the horizontal direction (arrow C) and can be fixed in place by screwing a nut 80 or the like. According to such a configuration that the winding guide 69 is movable, the urging of the roll paper 10A in the width direction can be finely adjusted by adjusting the movement of the winding guide 69.

In the above embodiment, the winding guide is
Although the shape is substantially triangular with a relatively small width, in the present invention, the shape is not limited to such a shape. Various shapes can be changed. Further, the movable structure as in the second embodiment is not limited to the above embodiment, but may be variously changed. Further, in the present invention, in addition to the configuration of the winding guide in each of the above-described embodiments, a configuration in which the axis of the winding shaft is slightly inclined may be used.

[0037]

As described in detail above, the roll paper winding mechanism according to the present invention is a roll paper winding mechanism in which a roll paper continuously supplied to a platen with a predetermined wrap angle is provided behind the platen. In the roll paper winding mechanism configured to be wound up, the roll paper is projected between the platen and the winding shaft with a width smaller than the width of the roll paper in the roll paper thickness direction to press the roll paper surface. According to the configuration in which the take-up guide is provided, the contact of the take-up guide with the roll paper can urge the roll paper in the width direction (a specific direction), for example, to increase the back tension. Even without doing so, it is possible to adjust the roll appearance while suppressing the roll paper from slipping. Further, since the urging of the roll paper in the width direction can be accurately performed, it is possible to provide a roll paper winding mechanism capable of effectively suppressing the lateral displacement of the paper on the platen caused by excessive urging. (Claim 1)

In the above-described roll paper winding mechanism according to the present invention, in the configuration in which the winding shaft is provided with a flange for forming a winding roll on one side of the shaft, the winding guide is provided with the flange. The roll paper winding mechanism that can be urged so that the roll paper to be wound is in contact with the flange side by being disposed near the set side. (Claim 2)

In the above-described roll paper winding mechanism according to the present invention, when the winding guide is configured to be movable in the width direction of the roll paper, the movement of the winding guide urges the roll paper in the width direction. Can be adjusted, so that it is possible to provide a roll paper winding mechanism capable of adjusting the way of winding on the winding shaft. (Claim 3)

In the roll paper winding apparatus having the roll paper winding mechanism according to the present invention, the roll paper is a copy roll paper in which a plurality of recording papers are overlapped so that the same information can be recorded simultaneously. A roll paper take-up device that holds rotatably in a roll state, draws out and supplies the platen to a platen, and after recording information on the platen, winds a part of the recording paper around a take-up shaft. A separator provided with a delivery unit that conveys a part of the recording paper to a side opposite to a winding side is provided, and the separator protrudes in a roll paper thickness direction with a width smaller than the width of the roll paper. With the provision of the winding guide for pressing the roll paper surface, the operation of the separator allows the winding guide to abut on the roll paper at the same time. Not only a good work property, it is possible to provide a roll paper winding device that can prevent the complication of the apparatus structure. (Claim 4)

In the roll paper winding device having the above-described roll paper winding mechanism according to the present invention, the separator is rotatably provided with a rotation support shaft. The roll paper winding device can easily provide a roll paper winding device that can press the winding guide against the roll paper by closing the separator. (Claim 5)

The printing apparatus using the roll paper winding device according to the present invention is provided with a separator provided with a delivery section for transporting a part of the recording paper after information recording to a side opposite to a winding side. The separator is provided with a winding guide that projects in the roll paper thickness direction with a width smaller than the width of the roll paper, and presses the roll paper surface. By the contact, the roll paper can be urged in the width direction, and a printing device that can be easily wound and adjusted can be provided. (Claim 6)

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a first embodiment of a printing apparatus using a roll paper winding device according to the present invention.

FIG. 2 is a perspective view of a main part showing a part of a winding shaft and a separator used in the roll paper winding device shown in FIG.

FIG. 3 is a schematic perspective view of a main part showing a second embodiment according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Copy roll paper supply apparatus 1a Base frame 7 Printer cover 10 Copy roll paper 10A, 10B, 10C Recording paper 34 Separator 38 Sending out part 39, 69 Winding guide 70 Locking shaft 80 Nut

Continued on the front page F term (reference) 2C060 BA05 CA02 CA03 CB12 3F055 AA01 CA11 CA28 DA01 DA26 EA17 FA05 3F104 AA01 BA19 CA21 FA09 FA10 FA11 FA14 KA16

Claims (6)

[Claims] 1. A roll paper winding mechanism configured to wind a roll paper continuously supplied to a platen with a predetermined wrap angle onto a winding shaft disposed behind the platen, A take-up guide for projecting in the roll paper thickness direction with a width smaller than the width of the roll paper and pressing the surface of the roll paper is provided between the take-up shaft and the take-up shaft. . 2. When the winding shaft is provided with a winding roll forming flange on one side of the shaft, the winding guide is disposed closer to the side on which the flange is provided. The roll paper winding mechanism according to claim 1, wherein: 3. The roll paper winding mechanism according to claim 1, wherein the winding guide is configured to be movable in a roll paper width direction. 4. The roll paper is a copy roll paper in which a plurality of recording papers are superimposed so that the same information can be simultaneously recorded. The roll paper is held rotatably in a roll state and pulled out to a platen. A roll paper take-up device for supplying and recording a part of the recording paper on a take-up shaft after recording information on the platen, wherein the recording paper is partly opposite to a winding side after the information recording. A separator provided with a delivery unit for conveying the roll paper to the side is provided, and the separator is provided with a winding guide that projects in the roll paper thickness direction with a width smaller than the width of the roll paper and presses the roll paper surface. A roll paper winding device having a roll paper winding mechanism. 5. A roll paper winding device having a roll paper winding mechanism according to claim 4, wherein said separator is rotatably provided with a rotation support shaft. 6. A printing apparatus using the roll paper winding device according to claim 4.