JPH06238596A - Cutting device for roll-shaped recording paper sheet - Google Patents

Abstract

PURPOSE:To cut a roll paper sheet in a sewing machine perforation form by providing a plate shaped fixed cutter and a rotary cutter which has a cut part at least at one place and cuts the roll paper sheet through revolution and carrying out cut by shifting the rotary cutter in reciprocation by a holding member. CONSTITUTION:As for a facsimile device, when a recorded and discharged roll paper sheet 10 is cut, a control signal is sent from a control part, and a driving force is supplied to a motor, and then a rotary cutter part 1 at the waiting position A is shifted toward the B point by the circumfernetial operation of a belt 8 as holding member. When the rotary cutter part 1 reaches the B point, a projection 12 formed on the belt 8 is detected by a sensor 9, and the motor is brought into stop. Since a rotary cutter 101 having a cut part at a part is supported in a turnable manner on the rotary cutter part 1 when the rotary cutter part 1 shifts, the rotary cutter 101 is shifted through revolution by the friction with a fixed cutter 2, and the roll paper sheet 10 is cut in a sewing machine perforation form.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roll-shaped recording paper cutting device in a facsimile machine or the like.

[0002]

2. Description of the Related Art A conventional device having a perforated cutting mechanism is described in, for example, Japanese Patent Application Laid-Open No. 1-146688.

FIG. 9 and FIG. 10 are a side view and a detailed view of a rotary blade of an apparatus having a perforated cutting mechanism disclosed in JP-A-1-146688.

On the circumference of the rotary blade 19, two outer and inner cutting blades 20 and 21 are provided alternately in the circumferential direction. For continuous cutting, both outer and inner cutting blades are provided. Use the blade and use only the outer cutting edge 20 when inserting the sewing line.

When the guide shaft of the movable table supporting the cutting blade 19 is pushed down by the compression spring and comes into contact with the positioning stopper, the rotary blade 19 is set at a fixed lower position. Then, by receiving power from the left and right gears via the timing belt and moving in the left-right direction while rotating, the cutting blades 20 and 21 both outside and inside the rotary blade 19 mesh with the fixed blade 18 and roll paper 13 To cut continuously.
When the set position switching solenoid pushes the guide shaft 9 up to the position where the guide shaft 9 is turned to the right, and the fixed blade 18 is set at the fixed position of the information, the fixed blade 18 rotates in the left-right direction while rotating to rotate the rotary blade 19 Outer cutting edge 20
Only the fixed blade 18 engages with the fixed blade 18 so that the roll paper 13 can be provided with a sewing machine wire.

[0006]

In the conventional perforated cutting mechanism in such a facsimile machine, the cutting blade 2 is used.
Since the 0 and the cutting edge 21 are alternately positioned, there is a problem that the structure of the rotary blade 19 becomes very complicated and the cost for processing is high. Further, when cutting on the sewing machine line, it is conceivable that both sides of the roll paper 13 are connected. At this time, it is very difficult for the user to cut the roll paper 13 with the sewing line, and sometimes the user cuts a part other than the sewing line.

Further, since the timing of inserting the sewing machine line is set for each standard form, when the information to be recorded is slightly larger than the standard size paper, there is a large margin on the last page and the recording paper is wasted.

Further, conventionally, the roll paper 13 is cut by reciprocating the rotary blade 19 for cutting, and two sensors are provided for recognizing the position of the rotary blade. Therefore, there was a cost.

The object of the present invention is to solve the above problems.
A first object is to reduce the cost by simplifying the structure of the rotary blade.

A second object is to eliminate waste of the recording paper depending on the timing of cutting the recording paper.

A third object is to reduce the cost of the mechanism for detecting the position of the rotary blade for reciprocating motion.

[0012]

In order to achieve the above-mentioned first object, the present invention has a plate-shaped fixed blade and a partial cutout portion, and rotates and moves along the fixed blade. A rotary blade that cuts the roll-shaped recording paper, a pressing spring that presses the rotary blade against the fixed blade, and a holder that is rotatably provided by pressing the rotary blade against the fixed blade by the pressing spring. is there.

Further, in order to achieve the above-mentioned first object,
Roll paper width (γ) = 2π × rotary blade radius (β) × rotational speed (χ) is satisfied, and the size of the cutout portion is α, the radius is β, and the rotary blade has n cutout portions. The radius (β) range Δ is not in the range of (Equation 1), so that a cut can be made at either end of the roll-shaped recording paper.

In order to achieve the second object of the present invention, when the amount of information to be recorded on the roll-shaped recording paper is equal to or larger than the standard paper, information is cut into perforations for each standard size. When the recording is finished, a control unit for further cutting into perforations is provided.

In order to achieve the above-mentioned third object, the present invention further comprises a reciprocating recording paper cutting means, a detecting means for detecting the position of the recording paper cutting means, and a first means provided in the recording paper cutting means. And the second detected member provided separately from the first detected member.

[0016]

According to the present invention, the rotary blade having the above-described structure is provided with the notch portion, and the rotary blade is pressed against the fixed blade. By rotating the rotary blade left and right, the rotary blade is rotated along the fixed blade. It is possible to move and cut the roll-shaped recording paper into perforations.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an exploded view showing a mechanism for cutting perforated roll paper discharged by a facsimile machine according to the present invention.

Reference numeral 1 denotes a rotary blade portion for cutting the roll paper while rotating it, and reference numeral 101 denotes a rotary blade in the rotary blade portion 1, which is partially cut. 102 is a rotary blade 10
1 is a holder for rotatably fixing, 103 is a rotary blade 10
A pressing spring for pressing 1 and a holder 102
A holder for rotatably fixing the rotary blade 101 in combination with 2 is a fixed blade for cutting the roll paper into perforations by engaging with the rotary blade 1, and 3 is provided so that the rotary blade 1 can be moved left and right. A cutter base 4 for fixing the fixed blade 2 to the cutter base 4 is a paper guide for guiding the roll paper to be discharged to the cutting portion.

As shown in FIG. 1, the rotary blade 101 is rotatably fixed by a holder 12 and a holder 14, and a pressing spring 103 is inserted inside the rotary blade 101 to urge the rotary blade 101 toward the fixed blade 2. Thus, the rotary blade 10 of the rotary blade unit 1
Since 1 is pressed by the fixed blade 2 and has a frictional force, when the rotary blade part 1 is moved left and right along the cutter base 3, the rotary blade 101 rotates along the fixed blade 2 to roll paper. It is possible to cut into perforations.

FIG. 2 is an operation diagram showing an operation of cutting roll paper by the facsimile apparatus having the mechanism shown in FIG.

The same parts as those in FIG. 1 have the same drawing numbers.
In FIG. 2, 7 is a gear to which rotational driving force is given by a motor (not shown), 8 is a belt provided with the rotary blade 1 at a predetermined position and rotated by the gear 7, and 9 is a position of the rotary blade 1. Is a roll paper, 11 is a protrusion provided on the rotary blade 1, and 12 is a protrusion attached to the belt.

With such a drive structure, the rotary blade 1 will be described below.
The operation and movement control will be described. The rotary blade unit 1 is initially waiting at point A. At this time, the protrusion 11 provided on the rotary blade portion 1 is detected by the sensor 6, and the controller (not shown) recognizes that the position of the rotary blade portion 1 is on standby at point A. . When cutting the roll paper 10 that has been recorded and discharged, a control signal is sent from the control unit,
Driving force is applied to the motor. That is, the rotary blade 1 is B
When trying to move to the point, a driving force is applied to the gear 7 from the motor, and the rotary blade portion 1 installed on the belt 8 moves toward the point B. When the rotary blade portion 1 reaches the point B, the protrusion 12 attached to the belt 8 is detected by the sensor 6. When the sensor 6 detects the protrusion 12, the control unit controls the motor to stop driving, and the rotary blade unit 1 stands by at the point B. That is, when the rotary blade portion 1 is moving from the point A to the point B, the rotary blade 101 is rotatably fixed to the rotary blade portion 1, and therefore the rotary blade 101 is fixed.
While rotating due to the friction with, it will rotate from point A to point B. Therefore, when the rotary blade unit 1 is moved from the point A to the point B by the belt 8, the rotary blade 101 cuts the roll paper 10 into perforations along the rotary blade 2.

Next, when the roll paper 10 is ejected while the rotary blade unit 1 is on standby at the point B, a control signal for cutting the roll paper 10 is sent from the control unit. When the control signal is received, the gear 7 gives a reverse rotation drive to the motor, and the rotary blade 1 moves from the point B to the point A. At this time, due to the friction between the rotary blade 101 and the rotary blade 2, the rotary blade 10
1 rotates, and the rotary blade 101 cuts the roll paper 10 into perforations along the fixed blade 2.

In this way, the rotary blade 1 can reciprocate by reversing the drive to the motor each time the sensor 6 detects a protrusion. Further, the position of the rotary blade portion 1 can be detected by one sensor, and the structure can be economically constructed.

The roll paper 10 is cut into perforations by such a mechanism. At this time, if the roll paper 10 is cut at either one of both ends, it is very easy to cut along the perforations. . Below, rotary blade 10
A detailed view of No. 1 will be shown, and a configuration in which a break is surely made in either one will be described in detail.

FIG. 3A shows the rotary blade 101. FIG. 3B shows roll paper cut into perforations by the rotary blade 101 shown in FIG.

FIG. 3 is a view showing a rotary blade 101 and a pattern of roll paper cut into perforations by the rotary blade 101. In FIG. 3, α is the size of the cutout, β, β1, β
2 is the radius of the rotary blade 101, γ is the width of the roll paper, 2πβ is the circumference of the rotary blade 101, and χ is an integer representing the number of rotations of the rotary blade 101.

The diagrams shown in FIGS. 3A and 3B show that the circumference 2πβ of the rotary blade 101 has been rotated χ (three rotations in this embodiment).

When the roll paper width γ is represented by β, it can be represented as γ = 2πβχ ...

FIG. 3C is a diagram showing the rotary blade 101, and the radius of the rotary blade 101 is β1 (<β). Figure 3
(D) shows a state in which both sides of the roll paper are seamless.

In FIG. 3D, when the radius of the rotary blade 101 is smaller than β1, a state in which the cuts at both ends of the roll paper 10 are further formed is shown, and the rotary blade 101 shown in FIG. It is in the state of being

When the roll paper width γ is represented by β, it can be represented as γ = 2πβ1χ + α ...

FIG. 3E is a diagram showing the rotary blade 101, and the radius of the rotary blade 101 is β2 (> β). Figure 3
(F) shows a state in which there are cuts on both sides of the roll paper 10.

In FIG. 3 (f), when the radius of the rotary blade 101 is smaller than β2, a roll paper in which both sides of the roll paper 10 have breaks is connected to both sides is shown. That is, when the roll paper width γ is represented by β, γ = 2πβ2χ-α ...

As described above, the roll paper width can be represented by the three types of mathematical expressions as described above depending on the radius of the rotary blade 101. When the radius of the rotary blade 101 is β1 or more and β2 or less, the roll paper 10 It is the radius of the rotary blade 101 that may be connected at both ends. In other words, when the rotary blade 101 is not in any of these conditions (regardless of whether the cutout faces upward or downward) when the condition is not satisfied, the roll paper 10 is always cut on either side. You can

Next, the radius of the rotary blade 101 is obtained. First, β2 = β1 + Δ is set.

Then, the expression can be expressed as γ = 2π (β1 + Δ) χ-α ...

Now create the equation for = and let Δ be α,
Expressed as χ. 2πβ1χ + α = 2π (β1χ + Δ) χ-α ...

[0039]

[Equation 2]

Δ is calculated as follows. Therefore, FIG.
As shown in (d), the roll paper width γ is (2πβ1χ + α)
In β1 which can be shown by

[0041]

[Equation 3]

When the condition is satisfied, both ends of the roll paper 10 may be connected together.

Conversely, if this condition is not satisfied, a break will always appear in either one of the roll papers.

The case where the rotary blade 101 has one notch has been described above. Next, the conditions under which one of the roll papers 10 has a cut when there are two cutouts will be described. When the cutout portion of the rotary blade 101 is provided in contrast to the center as shown in FIG. 4A, when the roll paper 10 is actually cut into perforations, the length of the cut portion is (πβ− α). That is, it has the same length as the circumference in which the radius of the rotary blade 101 is halved. Then, every time the rotary blade 101 having two cutouts makes a half rotation, a sewing line is formed in which a part connected to the roll paper 10 is formed.

Therefore,

[0046]

[Equation 4]

When the condition is satisfied, both ends of the roll paper 10 may be connected to each other. When this condition is not satisfied, a cut line always appears on one of the roll papers 10.

Next, when there are three notches, the roll paper 10
The conditions for making a break are shown on one side. When the cutouts of the rotary blade 101 are even between the cutouts as shown in FIG. 4B, when the roll paper 10 is actually cut into perforations, the length of the cutout is ( 2 / 3πβ-α). That is, it has the same length as the circumference where the radius of the rotary blade 101 is ⅓. Then, every time the rotary blade 101 having three cutouts makes one-third rotation, a sewing line is formed in which a part connected to the roll paper 10 is formed.

Therefore,

[0050]

[Equation 5]

When the condition is satisfied, both ends of the roll paper 10 may be connected to each other. When this condition is not satisfied, a break is always formed on either one of the roll paper 10.

The condition that a cut is always formed at both ends of the roll paper 10 when the rotary blade 101 having n notches is rotated by the above-mentioned method is as follows.

[0053]

[Equation 6]

It is when the condition is not satisfied.

As shown in the figure, the number of notches provided on the rotary blade 101 is preferably limited to the range of 1 to 3.
That is, the processing of the rotary blade 101 can be made cheaper, and since the cut portion is long, it is considered to be very easy to separate it. Furthermore, when the number of notches is plural, it is desirable to make the intervals between the notches even. By making the intervals between the cutouts even, the roll paper cut into perforations looks good, and when the user cuts along the perforations, it becomes easy to separate them.

As described above, by processing the rotary blade 101 so that a cut is always formed on either one of the two ends of the roll paper 10, when the user cuts the roll paper 10 along the sewing line, there is no damage or the like. It is possible to eliminate the inconvenience.

Further, in the present invention, there are respective patterns for the timing of cutting in the perforated shape. Hereinafter, this pattern will be described with reference to FIG.

FIG. 5 is a diagram for explaining at which position on the roll paper the perforated cutter in the present invention cuts.

In FIG. 5A, each roll paper is cut into perforations. For example, if the roll paper has a B4 width, the rotary blade unit 1 is driven for each B4 size to cut the roll paper into perforations.

In FIG. 5B, the roll paper is cut into perforations, and if the information to be recorded is larger than the standard paper, the information is cut once with the standard paper size and recorded. When finished, further cut into perforations.
For example, if the information to be recorded is B
If 4 is one and half, the first one is cut into perforations for each B4 size, and the second one is cut into perforations at the time when the information is recorded. In this way, the user cuts the roll paper 10 along the perforation line into an arbitrary size by cutting the standard paper into perforations and further cutting the perforations when the information is recorded. be able to.

In FIG. 5C, the paper is cut into perforations when the information recorded on the roll paper is completed. In the embodiment, the case of being larger than the standard paper is shown, but even if it is smaller than the standard paper, it is cut into perforations at the time when the information recording is completed.

There are timings for cutting in such a perforated shape, and the operator may arbitrarily select these.

Next, the details will be described with reference to FIG. FIG. 6 and FIG. 7 are control flow charts for cutting per standard paper as shown in FIG. 5B into perforations and further cutting at the end of recording.

FIG. 6 is a control flow chart when the number of transmissions is known in advance, such as when the other party transmits to the memory.
FIG. 7 is a control flow chart when the number of received sheets is unknown. The disconnection control will be described below with reference to FIGS. 6 and 7.

In FIG. 6, reception is started in ST1. In ST2, the number of received sheets is recognized by the pre-procedure of facsimile communication. In ST3, the received information is recorded. In ST4, it is determined whether the information is plural or one. Here, if there is a plurality of pieces of information, the process proceeds to ST5, and if there is one piece of information, the process proceeds to ST6. In ST5, since it is determined that the number of sheets is plural, the standard paper (for example, B4 size) is cut into perforations. In ST6, when the recording of the information less than the final standard size paper is completed, the paper is further cut into perforations. In ST7, the recording of the facsimile is completed.

In FIG. 7, reception is started in ST1. In ST2, the sequentially received information is recorded. ST3
Then, it is judged whether or not the recording is completed. If the recording is completed, the process proceeds to ST7. If the recording is not finished, go to ST4. In ST4, it is determined whether or not the standard size paper (for example, B4 size) has been reached. If the standard size paper is not reached, ST
Proceed to step 2 to record more. If you reach the standard paper, S
Proceed to T5. In ST5, it is cut into perforations. ST
At 6, it is determined whether there is information to be recorded next. If there is information to be recorded next, the process proceeds to ST2. If there is no information to be recorded next, the process proceeds to ST8.

When it is determined in ST3 that the recording has been completed, the process proceeds to ST7 and the perforation is cut. After cutting in ST7, the process proceeds to ST8.

In ST8, the recording of the facsimile is completed. As described above, the flow chart shows both the case where the number of recorded sheets is known in advance and the case where the number of recorded sheets is unknown.

Next, main specific examples of the disconnection control shown in FIG. 6B will be described. FIG. 8 shows a questionnaire survey table sent from the outside. In the present embodiment, the receiver separates the questionnaire and the answer sheet along the perforation line by using Kiritorisen and sends only the answer sheet. This is an effective usage when the receiver wants to arbitrarily separate the information transmitted in this way. It should be noted that the effect of the sewing machine wire is further enhanced by changing the types of the sewing machine wire corresponding to kiritricene and the last sewing machine wire. In other words, it is advisable to make the sewing line corresponding to kiritricene a dense sewing line to distinguish it from the last sewing line.

[0070]

As is apparent from the above description, according to the present invention, a rotary blade having a partially cutout portion is used as the rotary blade, and the upper end of the rotary blade is pressed against the fixed blade. By moving the table on which the rotary blade is installed to the left and right, the rotary blade can move to the left and right along the fixed blade while rotating, so that the roll paper can be cut into perforations.

Further, by setting according to the radius of the rotary blade and the number of cutouts, a cut can be made on either one of the rolls to be cut, and the operator can cut the rolls along the sewing line. Even if you try to separate it, you can quickly separate it without damaging it.

Furthermore, if the number of notches provided in this rotary blade is set to 1 or 2, the rotary blade can be easily machined and one cut portion becomes long,
It is very convenient when separating.

[Brief description of drawings]

FIG. 1 is an exploded configuration diagram of a facsimile apparatus according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a cutting portion of the facsimile apparatus according to the embodiment of the present invention.

3A is a detailed view of the first rotary blade of the present invention. FIG. 3B is a view showing roll paper cut by the rotary blade shown in FIG. 3A. FIG. 3C is a rotation shown in FIG. 3A. Detailed view of a rotary blade having a radius smaller than that of the blade (d) A view showing roll paper cut by the rotary blade shown in FIG. 3 (c) (e) A rotary blade having a radius larger than that of the rotary blade shown in FIG. 3 (a) Detail view of (f) A view showing roll paper cut by the rotary blade shown in FIG. 3 (e)

FIG. 4A is a detailed view of a rotary blade having two cutouts. FIG. 4B is a detailed view of a rotary blade having three cutouts.

5A is a diagram showing that a sewing machine line is inserted for each standard paper; FIG. 5B is a diagram showing that it can correspond to image information for recording a sewing machine line; and FIG. 5C is an end of image information for recording a sewing machine line. Diagram showing what to do at the time

FIG. 6 is a control flow chart when cutting into perforations corresponding to image information as shown in FIG.

FIG. 7 is another control flow chart when cutting into perforations corresponding to image information as shown in FIG.

FIG. 8 is a diagram showing a questionnaire survey form cut into perforations.

FIG. 9 is a diagram showing a configuration of a conventional roll paper cutting unit.

FIG. 10 is a detailed view of a rotary blade in a conventional roll paper cutting unit.

[Explanation of symbols]

 1 Rotating Blade 2 Fixed Blade 3 Cutter Base 4 Paper Guide 5 Screw 6 Screw 7 Gear 8 Belt 9 Sensor 10 Roll Paper 11 Protrusion 12 Protrusion 101 Rotating Blade 102 Holder 103 Pressing Spring 104 Holder 105 Screw 106 Screw

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Koji Fukada 2-3-3 Shimomeguro, Meguro-ku, Tokyo Matsushita Dentsu Co., Ltd.

Claims (8)

[Claims] 1. A plate-shaped fixed blade, a rotary blade having at least one notch for cutting roll-shaped recording paper by rotationally moving along the fixed blade, and the rotary blade having the fixed blade. And a holding member that holds the roll-shaped recording paper so that the roll-shaped recording paper is cut by reciprocating the holding member. 2. The rolled recording paper width (γ) = 2π × radius of rotating blade (β) × rotational speed (χ) + size of cutout (α), and the cutout provided in the rotary blade is n In the radius β of the rotary blade that is unique, the range of the radius β ′ of the rotary blade is The roll-shaped recording paper cutting device according to claim 1, wherein the cutting device is not in the range. 3. The cutting device for roll-shaped recording paper according to claim 1, wherein the blade portion of the rotary blade is larger than the cutout portion. 4. The roll-shaped recording paper cutting device according to claim 1, wherein when the rotary blade has a plurality of cutouts, the cutouts are evenly spaced. 5. A control unit that cuts into perforations for each standard size when the amount of information to be recorded on the roll-shaped recording paper is equal to or larger than the standard paper, and further cuts into perforations at the end of recording the information. The roll-shaped recording paper cutting device according to claim 1, further comprising: 6. A reciprocating recording paper cutting means, a detection means for detecting the position of the recording paper cutting means, a first detection target member provided in the recording paper cutting means, and a second first detection target member. A second detection member provided separately from the detection member, wherein the detection unit alternately detects the first detection member and the second detection member to record by the detection unit. A roll recording paper cutting device, which is also used as a detection position of a paper cutting means. 7. The roll-shaped recording paper according to claim 6, wherein the moving direction of the recording paper cutting means is reversed every time the detecting means detects the first and second detected members. Cutting device. 8. The roll-shaped recording, wherein when the recording paper cutting means is located on the opposite side of the detection means, the second detection member is located at a position detectable by the detection means. Paper cutting device.