KR100274649B1 - Printer paper cutting devices of facsimile - Google Patents

Abstract

The present invention relates to a recording paper cutting device for a facsimile, and a main object of the present invention is to provide a recording paper cutting device configured such that a blade is cut across the recording paper in a direction perpendicular to the traveling direction of the recording paper.

The constituent means for achieving the present invention is that the recording paper on which data is printed is discharged through the upper surface 13 of the cutting frame provided in the transverse direction in the discharge port, and when the cutting signal is recognized by the embedded microcomputer (μ-COM), the microcomputer Silver drives the motor 20 to rotate the screw 30, the carrier 40 coupled to the spiral portion of the screw 30 and the cutter 50 coupled to the carrier 40 is the screw 30 It is characterized in that it is configured to cut the recording paper while being transported across the recording paper along the cutting) and to support the cutting aid is installed on one side of the cutter 50 so that the recording paper is not lifted or flow.

Description

Facsimile transverse recording paper cutting device

The present invention relates to a recording paper cutting device of a facsimile, and more particularly to a transverse feed type recording paper cutting device for cutting the recording paper while the cutter is transported in a direction perpendicular to the recording paper discharge direction.

In general, a copier or a printer outputs a laser or an inkjet, but most fax machines mainly employ a thermal recording method.

This thermal recording method uses specially processed thermal recording paper because the received data is printed by printing on the recording paper by the thermal transfer head.

However, since the thermal recording paper is rolled in a roll form, it must be cut to an appropriate length upon printing. Therefore, most fax machines have built-in recording paper cutting devices, and small paper cutting devices have been mainly used as such recording paper cutting devices.

As a representative example of such a small-sized recording paper cutting device, as shown in Figure 1, the lower fixed blade 70 is fixed in a direction perpendicular to the discharge direction of the recording paper, the upper movable to cut the recording paper in engagement with the fixed blade 70 Blade 72 and drive means for operating the movable blade 72.

At this time, arms 73 bent at right angles to the blade portion are formed on both side surfaces of the movable blade 72, and hinges 71 are coupled to brackets at both sides at the middle portion of the arm 73. . In addition, the drive means is eccentric to the drive motor 74, the worm 76 is provided on the shaft end 75, the worm gear 77 is rotated in engagement with the worm 76, and the worm gear 77 The cam pin 78 protrudes so that the one end of the member is fixed to the cam pin 78 and the other end is connected to the end of the arm 73 of the movable blade 72 so as to convert the rotary motion into a reciprocating motion. It is composed of

Accordingly, when the recording paper is discharged between the movable blade 72 and the fixed blade 70 and the cutting signal is detected by the built-in microcomputer, the driving motor 74 is operated to operate the worm 76 and the worm gear 77. The cam pin 78 eccentrically installed in the worm gear 77 is rotated to operate the link 79 while rotating in a constant track. Subsequently, the link 79 rotates the end of the arm 73 of the movable blade 72 up and down, and the movable blade 72 is engaged with the fixed blade 70 to move up and down about the hinge 71 axis. Will be

At this time, since the movable blade 72 is formed to be inclined at a predetermined angle, one end is first engaged when it is engaged with the fixed blade 70, and then is gradually engaged in the other end direction, thereby cutting the recording paper in the same form as small beans. Done.

However, such a cutting device has a problem that the blade (70) 72 is easily worn and the life of the cutting device is shortened because the movable blade 72 is to interlock with the fixed blade 70 to cut the recording paper.

In addition, as described above, since the fixed blade 70 and the movable blade 72 are interlocked with each other to cut the recording paper, there is a problem that the recording paper cutting noise is high.

Accordingly, the present invention has been devised to solve the above-described problems, and a main object of the present invention is to provide a recording paper cutting device configured to cut recording paper while the blade is conveyed in a direction perpendicular to the traveling direction of the recording paper. .

1 is a perspective view of the main portion showing a state of a conventional small-head recording paper cutting device,

Figure 2 is an exploded perspective view of the transverse feed-type recording paper cutting device according to the present invention,

Figure 3a is a plan view of a transverse feed recording paper cutting device according to the present invention,

Figure 3b is a front view of the transverse feed recording paper cutting device according to the present invention,

Figure 4a is a block diagram according to the present invention,

4B is a floor chart according to the present invention.

*** Explanation of symbols for the main parts of the drawing ***

10: cutting frame 11: bracket

12: support groove 13: the upper surface

14: guide jaw 15: fastening hole

16: bottom surface 17: through groove

18: first sensor 19: second sensor

20: drive motor 21: shaft end

23: drive gear 25: motor drive unit

30 screw 31 transfer part

32: shaft end 33: driven gear

40: carrier 41: spiral groove

42: front wall 43: protrusion

50: cutter 51: cutting surface

53: coupling groove 54: through hole

55: pin 56: spring washer

57: bush 58: idling roller

60: fixture 61: bracket

62: support groove 63: extension bracket

64: through groove 65: extension surface

66: foot 67: fixing piece

68: foot 70: fixed blade

71: hinge 72: movable blade

73: arm 74: drive motor

75: shaft 76: worm

77: Worm Gear 78: Campin

79: link

The construction means for achieving the object of the present invention, the recording paper discharge port is installed in the transverse direction, the recording paper is discharged through the upper surface of the member, both sides of the cutting frame is formed with a support groove;

Screws are installed in the support grooves of the bracket on both sides so as to be interlocked by a drive motor;

A carrier coupled to the screw, the carrier coupled to allow linear movement in a screw installation direction when the screw is rotated;

Guide means for guiding the carrier to perform a linear motion along the screw;

Control means for controlling a transfer limit of the carrier;

It is installed on one side of the cutter spaced apart, characterized in that it comprises an idling roller for supporting the recording paper of the upper surface of the cutting frame is not pushed or flow from the upper surface of the cutting frame.

According to the above configuration, the facsimile discharges the recording paper on which the data is printed through the upper surface of the cutting frame, and when the cutting signal is recognized by the built-in microcomputer, the microcomputer operates the driving motor to interlock the screw. At this time, the carrier coupled to the screw and the cutter coupled to the carrier are transported across the recording paper along the screw to cut the discharged recording paper. At this time, the idling roller is in close contact with the upper surface of the cutting frame so that the recording paper does not push or flow when the cutter cuts the recording paper.

On the other hand, when the carrier and the cutter is completely cut the recording paper while being transported, the carrier is pressed to the first sensor while being transported, the first sensor delivers an electrical signal to the built-in microcomputer, the reverse rotation of the drive motor The carrier and the cutter are then retracted to their original state. At this time, when the carrier operates the second sensor again, the second sensor sends an electrical signal to the built-in microcomputer to stop the driving motor, thereby putting the cutting device in a standby state.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is an exploded perspective view of the transverse transfer type recording paper cutting device according to the present invention, reference numeral 10 is a cutting frame in which the support groove 12 is formed on one side bracket 11, 30 is the cutting frame 10 Is installed inside the screw is interlocked by the drive motor 20, 40 is coupled to the screw 30 is a carrier for linear movement as the screw 30 rotates, 50 is coupled to the carrier 40 To cut the recording paper. Reference numeral 60 is a fixture for installing one side shaft end 32 and the drive motor 20 of the screw 30 is coupled to the opposite bracket 11 of the cutting frame (10).

The cutting frame 10 is a U-shaped frame provided in the transverse direction under the recording paper discharge port, and a longitudinal guide jaw 14 having a predetermined height is formed in the front opening portion. In addition, the one end of the cutting frame 10 is provided with a bracket 11 forming a through groove 12, the first sensor 18 and the second sensor to be described later on both sides of the bottom surface (16). Through-holes 17 to which the 19 is installed are formed, and both sides of the rear side are formed with fastening holes 15 for installing the fixture 60 and the fixing piece 67 to be described later.

The screw 30 is comprised from the feed part 31 in which the thread was formed, and the shaft end 32 of both sides for engaging a member by bearing. The screw 30 is coupled to the support groove 12 of the bracket and the support groove 62 of the fixture to be described later is installed in the cutting frame 10, wherein one side end 32 of the fixture It extends to the outside through the support groove 62 to install the driven gear 23.

The carrier 40 is a conveying member of a rectangular parallelepiped which is coupled to the screw 30 and moves linearly as the screw 30 rotates. The carrier 40 has a spiral groove 41 penetrating both sides of the member. Is formed, and is coupled to the screw thread of the screw 30, a square projection 43 is formed on the front wall surface 42 is configured to fix the cutter 50 to be described later.

The cutter 50 is a disc-shaped member which is coupled to the protrusion 43 of the carrier and cuts the recording paper while being transported along the top end 13 of the cutting frame 10. The carrier 50 is located below the cutter 50. Square coupling groove 53 is coupled to the projection 43 of the, the upper left side is formed with a recording paper cut surface 51 forming a V-shaped blade. Moreover, the through hole 54 is formed in the upper part of the cutting surface 51 of this cutter, and it is comprised so that the cutting auxiliary apparatus mentioned later may be provided.

The guide means is for guiding the carrier 40 coupled to the screw 30 to perform a linear movement without being rotated along the screw 30. The guide jaw 14 which extends in the longitudinal direction is employ | adopted and has a fixed height so that it may contact with the front wall surface of the carrier 40. As shown in FIG.

The cutting aid is a device for supporting the recording paper not to be pushed or flowed when the cutter 50 cuts the recording paper, and the device has a cylindrical pin 55 installed in the through hole 54 of the cutter. And a bushing 57 and an idling roller 58 are coupled to the side of the cutter 50 of the pin 55, and spring washers 56 are installed at both ends of the pin 55 to provide the parts. It will support you not to fall out. Therefore, the idling roller 58 is finally installed to be in close contact with the upper surface 13 of the cutting frame to support the side of the cut portion of the recording paper.

The fastener 60 is a member which extends the two brackets up and down constantly, and the support bracket 62 and the through groove 64 are respectively provided in the upper bracket 61 and the lower extension bracket 63 of the fixture. Is formed, it is provided to pass through the one end shaft end 32 of the screw and the shaft end 21 of the drive motor to be described later. In addition, such a fastener 60 is formed in the rear extending surface 65 is connected to the outer side of the rear surface of the cutting frame 10, the fastening hole 15 on the back of the cutting frame in the center of the extension surface (65) ) And overlapping through holes are formed and screwed to the cutting frame 10. The lower end of the extension surface 65 is formed with a foot 66 extending rearward a predetermined length to install the cutting device as described above in the facsimile.

On the other hand, the left fastening hole 15 on the back of the cutting frame 10 is provided with a fixing piece 67, which is the same as the shape of the extension surface 65 and the foot 66 of the fastener described above, the facsimile as described above Screw the cutting device inside.

As shown in FIG. 4A, the driving motor 20 is electrically connected to the motor driving unit 25 for applying the constant current and the reverse current to the driving motor 20 by the control signal of the embedded microcomputer. . Therefore, the composition motor 20 may use the step motor which can be rotated forward or reverse by the applied current of the motor driver 25 and driven relatively precisely. On the other hand, the drive motor 20 is screwed to the inner side of the extension bracket 63 is coupled to the shaft end 21 so as to integrally rotate the drive gear 23.

The control means is a device for controlling the conveying range of the carrier 40, the control means is protruded to the inside of the cutting frame 10 through the left through groove 17 of the cutting frame is the drive motor ( The first sensor 18 for reverse rotation of the 20, and protruding through the right through groove 17, the second sensor 19 and the microcomputer built in the facsimile for stopping the drive motor 20 described above. And the like. At this time, the first sensor 18 and the second sensor 19 are installed to be pressed by the bottom surface of the carrier 40 while the carrier 40 is being transferred.

An operation example of the recording paper cutting device according to the present invention having the above configuration will be described with reference to FIGS. 3A and 3B.

First, the facsimile discharges the recording paper on which data is printed through the upper surface 13 of the cutting frame 10 installed on the recording paper discharge path, and when the cutting signal is detected by the microcomputer embedded in the facsimile, the microcomputer of FIG. A constant current is applied to the drive motor 20 through the motor driver 25 to rotate the drive motor 20 forward. At this time, the power is transmitted to the screw 30 through the driving gear 23 and the driven gear 33, and then the carrier 40 coupled to the screw 30 and the cutter (coupled to the carrier 40) 50) is discharged while cutting the discharged recording paper.

For reference, the forward rotation refers to when the driving motor 20 is rotated so that the cutter 50 can cut the recording paper, and the reverse rotation refers to the cutter 50 being returned to its original state. The above-mentioned when the drive motor 20 is diffracted so that it can be returned.

As described above, when the cutter 50 cuts the recording paper, the idling roller 58 of the cutting aid installed at a predetermined distance from the cutter 50 is in close contact with the upper surface 13 of the cutting frame. By supporting it, it serves to hold the recording paper so that it does not be folded or pushed.

Subsequently, referring to the operation of controlling the transfer limit of the cutting device, the microcomputer operates the first sensor 18 installed at the left end while the carrier 40 is transferred, as shown in FIG. 4A. The first sensor 18 transmits an electrical signal to the built-in microcomputer, and the microcomputer sends a control signal to the motor driver 25 to reversely rotate the driving motor 20, thereby retracting the carrier 40 again. Let's go.

Subsequently, when the second sensor 19 on the right side is operated while the carrier 40 is retracted, the carrier 40 sends an electric signal to the built-in microcomputer, and the microcomputer sends a control signal to the motor driver 25 again. To stop the drive motor 20 and to put the cutting device in the standby state.

As can be seen from the above, the recording paper cutting device according to the present invention avoids a method of cutting the recording paper while the upper and lower pairs of blades 70 and 72 are engaged with each other as in the prior art, the cutter 50 described above. By cutting so that the recording paper can be directly transported in the transverse direction, the pair of blades 70 and 72 can be prevented from being easily worn while being in friction contact with each other as in the prior art, and also the blade 70 ( 72) provides a quiet cutting device that does not generate the cutting noise to mesh with each other.

Claims (4)

In the facsimile recording paper cutting device, a cutting frame is installed in the lower portion of the recording paper discharge port in the transverse direction, and the recording paper is discharged through the upper surface of the member, and the support grooves 12 and 62 are formed in both brackets 11 and 61. 10); A drive motor 20 which is rotated forward or reverse by the control of the motor driver 25; A screw 30 mounted on the support grooves 12 and 62 of both brackets so as to be interlocked by the driving motor 20; A carrier (40) coupled to the screw (30) so that the screw (30) rotates so as to linearly move in an installation direction of the screw (30); Geared means for guiding the carrier 40 to linearly move along the screw 30; Control means for controlling a transfer limit of the carrier 40; A disk-shaped cutter 50 coupled to the carrier 40 and having a V-shaped blade formed to cut the recording paper while being transported along the front end 13 of the cutting frame 10; It is installed on one side of the cutter 50 spaced apart by a certain distance to support the recording paper to be cut by the cutter 50 so as not to lift or flow on the cutting frame upper surface 13, characterized in that configured to include a Pixie's transverse feed recording paper cutting device. According to claim 1, The control means, is installed so as to project into the cutting frame 10 through the through groove 17 formed in the left end of the cutting frame 10, and electrically connected to the microcomputer embedded in the facsimile A first sensor 18 for reversely rotating the driving motor 20; It is installed to protrude into the cutting frame 10 through the through groove 17 formed at the right end of the cutting frame 10, is electrically connected to the microcomputer embedded in the facsimile, to stop the drive motor 20 Facsimile transverse recording paper cutting device, characterized in that comprises a second sensor (19) for. The method of claim 1, wherein the guide means is formed in a direction parallel to the screw 30 and connected to one side or several sides of the carrier 40, so that the carrier 40 is rotated when the screw 30 is rotated A facsimile transverse recording paper cutting device comprising a guide for supporting a linear motion without rotation. According to claim 1, wherein the cutting aid is installed on one side of the cutter 50 spaced apart, to support the recording paper of the upper surface of the cutting frame 13 so as not to be pushed or flow from the upper surface of the cutting frame (13) A transversal recording paper cutting device of a pilissimil, comprising an idling roller (58).

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