JPH08141980A - Paper sheet cutter device - Google Patents

Abstract

PURPOSE: To increase the distance by separating a long cutter from a cutter, so as to easily remove the pinched printed paper sheet when paper sheet jam is generated after the printed paper sheet is pinched between the long cutter and the cutter, by providing the long cutter so that it may be freely separated from a cutter device main body. CONSTITUTION: After a printing paper sheet P is conveyed by a paper sheet conveying mechanism 52, and printed by a printing part 53, and then supplied to a paper sheet cutter mechanism. When the paper sheet is conveyed to the position where a long cutter 4 is brought in contact with the cutting position of the printed paper sheet P, a driving motor 68 is stopped. A geared motor 14 is driven, and a cutter holder 10 is moved by tension of a wire 12 wound on the outer peripheries of gear pulleys 13. A cutter 6 rotatably locked on the cutter holder 10 is moved along the long cutter 4 and cuts the printed paper sheet 10. In this case, a rotating member 2 is made into the rotatable state in relation to a guide bracket 1 after removing a wing nut 8, the long cutter 4 is separated from the cutter 6, and the distance between both cutters 4, 6 is therefore increased, and a pinched paper slip can be easily removed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper cutter device, and more particularly to a paper cutter device used in a printing device such as a facsimile device for cutting roll-shaped recording paper or standard paper.

[0002]

2. Description of the Related Art FIG. 3 shows a conventional example. The paper cutter device 51 includes a paper feeding mechanism 5 inside the printing device.
It is arranged on the downstream side in the feeding direction of the printing paper P from the printing paper P through the printing unit 53.

This paper cutter device 51 is used for printing paper P.
Straight long blades 54 arranged in parallel with each other, and the paper guides 5 arranged at predetermined intervals on the long blades 54.
5, a cutting edge 56 that makes contact with the long blade 54, and the cutting edge 5
And a cutting edge moving mechanism 57 for guiding the movement of 6 along the long blade 54.

Inside the printer, there is provided a guide bracket 58 which is a plate-shaped cutter device body having a rectangular conduction hole 59 into which the printing paper P is inserted. A long blade 54, which is wider than the printing paper, is fixed to the upper portion of the conduction hole 59, and the long blade 54 has a sharp end opposite to the fixing portion. In the lower part of the conduction hole 59,
A paper guide 55 is provided facing the upstream side in the paper transport direction. The paper guide 55 is arranged in parallel with the long blade 54 at a predetermined interval, and is slanted downward from the conduction hole 59 so that the leading end of the conveyed printing paper P can be easily inserted into the conduction hole 59. It is arranged facing.

Further, a disc-shaped cutting blade 56 having a blade on the outer periphery is vertically rotatably attached to the long blade 54 from below by a cutting blade moving mechanism 57 so as to be rotatable along the long blade 54. . The cutting blade moving mechanism 57 includes a cutting blade holder 60 that rotatably locks the cutting blade 56, and a guide shaft 61 that penetrates the cutting blade holder 60 and guides it in parallel with the longitudinal direction of the long blade 54.
An annular wire 62, a part of which is fixed to the lower end of the cutting blade holder 60, a gear pulley 63 in which the wire 62 is wound around the outer peripheral surface and a gear is integrated, A driven pulley 65 that winds around 62, and a geared motor 64 that is connected to the gear pulley 63 via a gear (not shown) and has a reduction gear inside are configured.

The printing paper P is held in a roll shape as a paper roll 69, and at the time of printing, the paper roll 6 is held.
The sheet 9 is conveyed by the sheet feeding mechanism 52. The paper feed mechanism 52 is composed of a pinch roller 66, a conveyance roller 67, and a drive motor 68. The conveyance roller 67 is rotated by the drive motor 68 via a belt mechanism, and the conveyance roller 6
The printing paper P sandwiched between 7 and the pinch roller 66 is conveyed in the direction of arrow T.

The printing paper P conveyed in the direction of arrow T is
After printing is performed by the printing unit indicated by the chain double-dashed line, it is conveyed to the paper cutter device 51.

The printing paper P is guided by the paper guide 55 to the conduction hole 59, and the predetermined cutting position is conveyed to the cutting edge position of the long blade 54 and stopped. After the printing paper P is stopped, the cutting blade 56 moves along the long blade by the cutting blade moving mechanism 57 while contacting the cutting edge with the long blade. The cutting blade 56 moves while rotating due to sliding friction with the long blade 54, and the printing paper P is
It is cut so as to be sandwiched between the cutting blade 56 and the long blade 54.

Here, the guide bracket 5 shown in FIG.
8, the transport roller 67, the pinch roller 66, and the like are supported by an internal partition wall of a printing device (not shown).

[0010]

In the use of the above-mentioned conventional example, when the printing paper P goes out of the normal state for some reason, for example, the printing paper P has humidity, temperature, paper folding, and paper transportation in the conducting hole 59. If the printing paper P is broken due to scratches on its place, or if the cutting of the printing paper P due to an artificial cause is pushed back in the direction opposite to the conveying direction and a plurality of sheets are stacked, the paper is cut as it is. When cutting is performed by the blade 56, the cutting blade 56 may stop in the middle of cutting due to the heavy paper cutting load.

In such a case, the conventional paper cutter device is
Remove the jammed paper and eliminate the cause of the overload. However, when the printing paper P is biting, it is difficult to remove the printing paper P through the narrow conduction hole 59.
In particular, if the printing paper P is torn between the long blade 54 and the cutting blade 56 and a fine piece of paper remains, it is impossible to remove it by hand. In addition, there is a problem in that if a piece of paper is to be removed using a tool having a sharp tip, the long blade 54 and the cutting blade 56 may be damaged and the cutting function thereof may be impaired.

[0012]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a paper cutter device capable of improving the disadvantages of the conventional example and easily eliminating the jamming of printing paper.

[0013]

According to the present invention, a straight long blade arranged parallel to the surface of a printing sheet, a paper guide arranged at a predetermined interval from the long blade, and a long blade are provided. A cutting blade at a position where the cutting edge contacts, a cutting blade moving mechanism that guides the cutting blade to move along the long blade, and a cutter device body that supports the paper guide and the cutting blade moving mechanism. Is provided so as to be detachable from the main body of the cutter device.

It is also possible to equip the cutter device main body with a long blade so that the long blade can be rotatably and rotatably mounted, and the undulating rotation end of the long blade can be detachably fixed to the cutter device main body through a locking member.

Further, the locking member may be constituted by a screw mechanism using a thumbscrew which is a screw member provided with a butterfly-shaped handle.

The above structure is intended to achieve the above-mentioned object.

[0017]

When the printing paper is conveyed by the paper guide in parallel with the long blade at a predetermined interval, the cutting blade at the position where the long blade and the blade contact each other is moved by the cutting blade moving mechanism provided in the cutter device main body. By moving along the long blade, the printing paper is cut so as to be sandwiched between the blade edges of the long blade and the cutting blade.

On the other hand, when the printing paper is sandwiched between the long blade and the cutting blade and paper jam occurs, the long blade is removed from the cutting blade to widen the interval between the long blade and the cutting blade. Thus, the sandwiched printing paper can be removed.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. In this embodiment, as in the conventional example, it is located on the downstream side in the printing apparatus from the paper feeding mechanism through the printing unit in the conveyance direction of the printing paper, and the same reference numerals are used for the same portions as the conventional example. And the duplicate explanation is
It shall be omitted.

In this embodiment, a straight long blade 4 arranged in parallel with the surface of the printing paper P, a paper guide 5 arranged at a predetermined interval on the long blade 4, and a long blade 4 are provided. As a cutting blade 6 at a position where the cutting edge is in contact, a cutting blade moving mechanism 7 that guides the cutting blade 6 to move along the long blade 4, and a device body that supports the paper guide 5 and the cutting blade moving mechanism 7. The guide bracket 1 and the long blade 4 are attached to the guide bracket 1.
Equipped with a detachable to.

A guide bracket 1 is provided inside the printer.
And a rotating member 2 are provided. As shown in the figure, both the guide bracket 1 and the rotating member 2 are rectangular plate-shaped, and the rotating member 2 is mounted on the upper portion of the guide bracket 1, and these are configured as one flat plate. The printing paper P is conveyed to the conduction hole 9 formed by the notch provided at the lower end of the rotating member 2 and the upper end of the guide bracket 1.

The guide bracket 1 is provided with a turning member 2 so as to be capable of undulating and turning, while having a locking member for removably fixing the undulating turning end of the turning member 2. That is, the cylindrical member 2A, which is erected on the flat surface on the one end side of the rotating member 2 and serves as the center of rotation, is fitted and inserted into the circular hole 1B provided on the projecting portion 1A on the one end side of the guide bracket 1, and the cylindrical member By being locked by the E-ring 3 to prevent the member 2A from being disengaged, the rotating member 2 engages with the guide bracket 1 so as to be able to rotate up and down.

On the other hand, the guide bracket 1 and the rotating member 2
Has bent portions 1C and 2C formed such that the other ends in the longitudinal direction are bent and are opposed to each other. These bent portions 1C and 2C are detachably fixed by a thumbscrew 8. The thumbscrew 8 is a screw including a butterfly-shaped handle portion and a screw portion that are suitable for being manually turned, and a hole 2E into which the screw portion of the thumbscrew 8 is inserted is formed on the bent portion 2C. The bent portions 1C and 2C are fixed by being provided and screwed into the screw holes 1E provided on the bent portion 1C.

On the bent portion 1C, there is provided a positioning pin 1D whose tip is recessed, and this positioning pin 1D is provided.
The guide bracket 1 and the rotating member 2 are always fixed at a desired position by guiding the positioning hole 2D provided in the bent portion 2C at D.

A long blade 4 wider than the printing paper P is fixed to the upper portion of the conduction hole 9, that is, a notch at the lower end of the rotating member 2, and the long blade 4 is a surface contacting the printing paper P. The edges are sharply formed. A paper guide 5 is provided at the upper end of the guide bracket 1, which is the lower part of the conduction hole 9, facing the upstream side in the paper transport direction. This paper guide 5
They are arranged in parallel with the long blade 4 at a predetermined interval, and are arranged obliquely downward from the conduction hole 9 so that the leading end of the conveyed printing paper P can be easily guided to the conduction hole 9. Has been done.

Furthermore, a disc-shaped cutting blade 6 having a blade on its outer periphery, which vertically contacts the long blade 4 from below, is movable along the long blade 4 via a cutting blade moving mechanism 7. Equipped to 1.

The cutting blade moving mechanism 7 includes a cutting blade holder 10 for rotatably locking the cutting blade 6, a guide shaft 11 penetrating the cutting blade holder 10 and guiding the cutting blade 6 in parallel with the longitudinal direction of the long blade 4.
An annular wire 12 partially fixed to the lower end of the cutting blade holder 10, a gear pulley 13 wound around the outer peripheral surface and integrated with a gear for transmitting a rotational force,
The driven pulley 15 that winds the wire 12 from the other end of the gear pulley 13 and a geared motor 14 that has a reduction gear inside and is engaged with the gear pulley 13 via a gear (not shown) are all provided. The guide bracket 1 is arranged on the downstream side surface of the guide bracket 1 in the sheet conveying direction.

Next, the operation of this embodiment will be described with reference to FIGS. The printing paper P is conveyed to the paper cutter mechanism after being printed by the printing unit 53 by the paper feeding mechanism 52. Here, the drive motor 68 of the paper feed mechanism 52 and the geared motor 14 of the cutting blade moving mechanism 7 are driven by a control circuit of the printing apparatus via a control signal transmission means (not shown) so that a predetermined operation is performed.

When the printing paper P is conveyed to the position where the cutting edge and the long blade 4 come into contact with each other, the drive motor 68 stops driving. Then, the geared motor 14 is driven, the gear pulley 13 receives a rotational force via a gear (not shown) connected to the output shaft of the geared motor 14, and the gear pulley 13
The cutting blade holder 10 moves due to the tension of the wire 12 wound around the outer periphery of the cutting blade holder 10. The cutting blade 6 rotatably locked to the cutting blade holder 10 moves along the long blade 6 while rotating due to the sliding friction received from the contact portion with the long blade 4, and the printing paper P is It is cut so as to be sandwiched between the long blade 6 and the cutting blade 4.

On the other hand, the printing paper P folds in the conduction hole 9 due to humidity, temperature, paper folding, scratches at the paper transporting position, or the printing paper P cut by an artificial cause When the cutting blade 6 is stopped in the middle of cutting due to a large paper cutting load by pushing back in the direction opposite to the conveying direction and stacking multiple sheets, especially at that time, between the long blade 4 and the cutting blade 6 When a small piece of paper bites into the sheet, as shown in FIG. 2, the thumbscrew 8 is removed, and the rotating member 2 is made rotatable with respect to the guide bracket 1 so that the cutting blade 6 can be rotated. By separating the long blade 4, the distance between the long blade 4 and the cutting edge 6 is widened. As a result, the sandwiched paper piece can be removed.

In this embodiment, the required cutting time is about 1 second when the paper width is 210 mm. Therefore, by setting the rotation time of the geared motor 14 to be longer than the required cutting time in advance (1.5 to 2 seconds in this embodiment), the cutting blade holder 10 abuts against the fixed portion at either one end of the guide shaft 11, The drive is blocked and the disconnection is complete.

Here, a micro switch or a sensor for detecting the positions of the left and right ends of the cutting blade 6 may be provided to detect the completion or position of cutting.

Here, the guide bracket 1, the conveying roller 67, the pinch roller 66, the paper roller 69, etc. shown in FIG. 1 are assumed to be supported by an internal partition wall of a printing device (not shown).

Further, in the present embodiment, the long blade 4 is provided on the rotating member 2 so that the long blade 4 can be detached from the main body of the apparatus. However, the long blade 4 can be directly detached from the main body of the apparatus. It may be configured as a structure. Further, the cutting blade 6 may be detachable from the long blade 4.

Furthermore, in the present embodiment, the cutting blade 6 is formed in a disk shape and is rotatably locked, but it is also possible to use a flat cutting blade fixed to the cutting blade moving mechanism. good.

As described above, according to the present embodiment, when the printing paper P is caught between the long blade 4 and the cutting blade 6 and a piece of paper is caught, the thumbscrew 8 is removed and the guide bracket 1 The rotary member 2 is rotatably equipped with respect to and the long blade 4 is detached from the cutting blade 6,
The paper piece can be easily removed, and the unprintable state can be easily removed.

Since one end of the rotating member 2 is fixed to the guide bracket 1 by the thumbscrew 8,
By manually removing the thumbscrew 8 when a piece of paper is jammed, it is not necessary to prepare a tool or the like.

Further, since the long blade 4 is detachable from the cutting blade 6, if the cutting blade 6 or the long blade 4 is damaged,
The replacement and repair can be easily performed, and the maintainability of the device is improved.

Further, when fixing the rotating member 2 to the guide bracket 1, a positioning pin 1D is provided in the bent portion 1C,
Since the bent portion 2C is provided with the positioning hole 2D, it is possible to always fix it in a desired state.

[0040]

As described above, according to the present invention, when the printing paper is cut in the same manner as in the conventional case, and when the printing paper is difficultly inserted between the long blade and the cutting blade, the paper piece is caught. By removing the long blade from the device body,
It is possible to provide an unprecedented excellent paper cutter device capable of easily removing a paper piece and easily removing such a non-printable state.

Further, since the long blade can be detached from the main body of the apparatus, if the cutting blade or the long blade is damaged, replacement and repair can be easily performed, and the maintainability of the apparatus is improved. Be improved.

Further, when a long blade is provided on the main body of the apparatus so as to be capable of undulating rotation, and the undulating rotation end of the long blade is made detachable via a locking member, the long blade 4 is released by releasing the locking member. Since the can be rotated, the work of removing the jammed paper is simplified, and therefore the operability in the work is improved.

Furthermore, when the long blade is attached and detached by the thumbscrew, the attachment and detachment is performed manually, so that the labor for preparing tools and the like is not required, and the work can be performed quickly.

[Brief description of drawings]

FIG. 1 is a partially omitted perspective view showing an embodiment of the present invention.

FIG. 2 is a partially omitted perspective view showing an operating state of an embodiment of the present invention.

FIG. 3 is a partially omitted perspective view showing a conventional example of the present invention.

[Explanation of symbols]

 1 Guide bracket (device main body) 4 Long blade 5 Paper guide 6 Cutting blade 7 Cutting blade moving mechanism 8 Thumbscrew

Claims (3)

[Claims] 1. A straight long blade arranged parallel to the paper surface of the printing paper, a paper guide arranged at a predetermined interval on the long blade, and a cut at a position where the cutting edge contacts the long blade. In a paper cutter device including a blade, a cutting blade moving mechanism that guides the cutting blade to move along the long blade, and a cutter device body that supports the paper guide and the cutting blade moving mechanism, A paper cutter device, wherein a long blade is detachably provided to the cutter device body. 2. The long blade is mounted on the main body of the cutter device so as to be capable of undulating rotation, and the undulating rotation end of the long blade is detachably fixed via a locking member. 1. The paper cutter device according to 1. 3. The paper cutter device according to claim 2, wherein the locking member is constituted by a screw mechanism using a thumbscrew.