JPS6023055B2 - automatic paper feeder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic paper feeding device that includes a plurality of roll-shaped recording papers and selectively automatically feeds any of the recording papers.

In conventional facsimile receivers that use a roll of recording paper, it is necessary to stop the facsimile receiver when replacing the recording paper.

Therefore, when receiving a large amount of information continuously, it is necessary to always pay attention to the amount of recording paper remaining. The present invention provides a facsimile receiver that eliminates such drawbacks, and since a plurality of rolls of recording paper are fed alternately, replacing the recording paper requires the facsimile receiver to be stopped. This can be done even during reception without having to do so. Therefore, there is plenty of time when it is time to replace the recording paper, and it is not necessary to pay close attention to the remaining amount of the recording paper as in the past. The contents will be explained below according to the drawings.

FIG. 1 is a side view showing the inside of a facsimile receiver to which the present invention is applied. The inside of the body 1, which forms the outer shape of the facsimile receiver, can be divided into the following seven parts by function.

That is, an upper recording paper storage section 2 for loading and storing roll-shaped recording paper for recording, a lower recording paper storage section 3 having the same configuration as this, and a recording paper storage section 3 for loading and storing rolled recording paper for recording. A recording paper conveyance unit 4 for conveying recording paper, a recording unit 5 for recording on the recording paper conveyed from the recording paper conveyance unit and cutting the recording paper, and recording paper recorded by the recording paper. or a scarlet feeding section 6 for discharging unrecorded paper (slip paper) that has not been recorded, the upper part;
Control for sending signals for conveying, stopping, cutting, rewinding, and separating the recording paper to the lower recording paper storage units 2 and 3, the recording paper transport unit 4, the recording unit 5, and the scarlet feeding unit 6 circuit 7
, a recording circuit 8 for supplying a recording signal to the recording section 5. The transport path of the recording paper will be explained with reference to FIG.

When the recording paper 9 is stored in the upper recording paper storage section 2 and the recording paper 10 is stored in the lower recording paper storage section 3, the recording paper 9 in the upper recording paper storage section 2 is conveyed preferentially, and the recording paper 9 Alternatively, if only one of the recording papers 10 is stored, the stored recording paper is conveyed.

Now, the recording papers 9 and 10 are both in the upper and lower recording paper storage parts 2.
, 3, the upper recording paper storage section 2
The leading edge 9a (not shown) of the recording paper 9 in
(not shown) and a feed rotatably mounted thereon. - It passes through the inside of the guide Itadomi 3 while being held between the hoods 12. In the recording paper conveying section 4, ~ feed drum ~ pulley 15, 15a mother
Since the feed belt group 6 is suspended on the wing 5b, the tip ga of the recording paper 9 that has passed inside the guide plate frame 3 is placed between the feed drum turtle umbrella and the feed belt 16 by "feed pulley group '5? 1".
It passes between the capstan 20 and the pinch roller 2 and the cutting member 22023. A cutting material 248 for detecting the arrival of the recording paper 9 in the recording paper traveling direction of the cutting member 23
24a (2 turtle a is not shown) is mounted, and by detecting the arrival of the leading edge ga of the recording paper 9, the upper to lower recording paper storage sections 2, 3, 3, the recording paper transport section 4, and the respective recording section 5 The recording paper feeding mechanism of the unit is stopped. With the above steps, the recording paper is loaded and ready for reception. When a transmission signal is received, the following operation is performed. First, the upper recording paper storage section 2 Each magazine paper drive member in the recording paper conveyance section 4 to recording section 5
9 379 2 units 2 units L push plate 1 for driving the recording paper
Recording is performed on the portion of the recording paper where the recording needle holder 81 is pressed by 9 in accordance with the transmitted signal. The leading edge of the recording paper starts from the position of the cutting members 22 and 23, and recording starts from the position of the recording needle, so there is a non-recorded portion equal to the distance between the positions of the cutting members 22 and 23 and the recording needle 18. .
Therefore, when the recording paper is conveyed for a certain period of time, the control circuit 7
The movable blade 23 is actuated by a signal emitted from the holder, and cuts and separates the recorded portion from the non-recorded portion. On the other hand, the temporary sending section 6
In ``a discharge belt 26 is suspended between discharge pulleys 25 and 25a, and a discharge belt 28 is suspended between discharge belts 27 and 27a.

The upper part of the discharge belt 26 and the lower part of the scarlet conveying belt 28 are in contact with each other, so that the recording paper can be carried and conveyed. Therefore, the leading end of the separated non-recorded portion in the feeding direction is held between the ejection pulleys 25 and 27, and the 9E feeding belt 2
6? 28, it passes between the discharge pulley 25-a and the base 2a, and the direction of movement is changed by the separation plate 29, and the upper side of the discharge belt 28 and the pulley 38 in contact with this are changed by the separating plate 29.
It will be held in autumn. Then, the camellias are delivered to the upper side of the delivery belt 28 and the lower side of the 8E transport belt 32 suspended by the scale transport pulley 31 and the third turtle a, and are thrown into the paper storage box 33. On the other hand, after the recorded portion where the transmission signal is recorded is cut by the cutting members 22 and 23,
Between the space and the delivery belt 26428 t delivery pulley 25
After being firmly conveyed between 27a and 27a, it passes through the inner surface of the guide plate 34, is held between scale feed rollers 35936, and is discharged onto the tray 87.

Next, FIG. 2 also shows the upper recording paper storage section 2 having the recording paper g in FIG. 1 and the lower recording paper storage section 3 having the recording paper turtle Q in FIG.
3 shows a perspective view of a recording paper conveying unit turtle having a feed drum 1. FIG. 3 shows a side view of the upper recording paper storage unit 2.

Loading and automatic paper feeding of the recording paper will be explained with reference to FIG. 8.The rail frame 3 shown in FIG. 2 is located above the roller frame 3 shown in FIG.

In order to support the recording paper 9 of the upper recording paper storage part mother of this rail frame 3, an outer frame register wing that supports the bearing mother 2 is fixed. Turtle 3
A recording paper shaft 44, which can be slid in the direction of FIG. When the lever 8 is moved in the direction of the arrow 3 against the spring 45,
When the lever turtle shaft is engaged with the recording paper roll holder, it moves in the direction of the arrow 43, and the core holder and ~
The recording paper 9 can be replaced. Here too, at the end of the recording paper 9, there is a core holder (not shown) and a ball holder that supports it.The end of the outer frame guard that constitutes the upper recording paper storage section 4 is also fixed to the other end of the outer frame. It has a rail frame 38 and a roller for moving it. Therefore, when installing the recording paper, 1) pull out the rail frame 38 in the direction of arrow 40, and 2) move the lever 46 in the direction of arrow 3. After moving the right end of the recording paper 9 in the direction shown in FIG. (2) Move the rail frame 38 in the direction opposite to the arrow 40.The leading edge ga of the recording paper 9 loaded in the above method is rotated by a belt 49 suspended between pulleys 48 and 48a as shown in FIG. The grip roller 11 is placed between the grip roller 11 to which the information is transmitted and the feed roller 12, but since the grip roller 11 is configured to be rotatable in the direction of the arrow 50 about the rotation axis of the pulley 48, the recording The leading edge 48 of the paper 9 can be easily held by moving the grip roller 1 in the direction of the arrow 50.

Further, the recording paper remaining amount detection lever 51 has one end connected to the rail frame 38.
It has a detection member 53 that is rotatably supported on the side surface of the recording paper 9 and has a light emitting and light receiving element at the other end, and a spring member (not shown) is installed so that the detection member 53 is always in contact with the recording paper 9. is energized by As a result of conveying the recording paper 9, the recording paper 9
When the outer diameter changes from the solid line 54 to 54a shown by the dotted line, the recording paper remaining amount detection lever 5 reaches the position 51a shown by the dotted line. Near the inner end of the roll of recording paper 9, a portion is provided where the reflectance or transparency of light changes due to the pasting of mark labels, application of ink, notches, etc. The state of the grip roller 1 is detected by the detection.
The rotational direction of the grip roller W is reversed, and the grip roller W pulls the recording paper back in the opposite direction to the conveyance direction. Along with this, when the leading edge ga of the recording paper 9 passes the detector 55, the detector 55 detects the absence of the recording paper 9, stops the rotation of the grip roller, and the lower recording paper in the Storage section 3
The recording paper 10 passes through the guide plate portion 3a of the recording paper conveyance section 4, is held between the feed drum 14 and the feed belt 16, and is conveyed to the recording section 5. The above description has been made regarding the case where the recording paper 9 in the upper recording paper storage section 2 has run out, but the same applies when the recording paper 10 in the lower recording paper storage section 3 has run out. The recording sheets 9 and 10 are automatically conveyed alternately. Next, FIG. 4 is a perspective view showing a part of the recording paper conveying section 4 and most of the recording section 5 in FIG.
The pressing force control of the press plate 19 against the recording needle 18 and the pressing force control of the pinch roller 21 against the capstan 201 will be explained.

The leading edge 9a of the recording paper 9, which has been conveyed by the feed drum 14, the feed belt 16, the boley 15, and the pulley 17, passes between the recording needle 18 and the push plate 19, and then reaches the capstan 20.
The fixed blade 22 of the cutting member is held between the pinch roller 21 and the pinch roller 21.
and the movable blade 23. The movable blade 23 of the cutting member includes:
A total of two paper detectors 24, 24a are disposed at a portion approximately 5 cm inside from both ends of the recording paper width in the direction of the blade to confirm the shape of the leading edge of the recording paper 9 (as explained in FIG. 5). do)
The leading edge 9a of the recording paper 9 stops at the paper detectors 24, 24a. This is the state in which the recording paper has been loaded and is ready for reception. However, when a recording signal is received, the push plate 19 presses the recording paper 9 against the recording needle 18 in response to a signal from the control circuit 7, and almost at the same time, the pinch roller 21 is activated. In order to press the recording paper 9 against the cab stan 20 which is being rotated by the step motor 59, the recording paper 9 starts to be conveyed. On the other hand, since the recording signal is applied from the recording circuit 8 to the recording paper 9 through the recording needle wing 8, the recording signal is recorded on the recording paper 9. Here, the tip of the recording stylus 8 has a flat tip due to manufacturing irregularities, wear, etc., both at the microscopic tip of each recording stylus and at the macroscopic tip of a large number of aligned recording styli. In addition, the surface of the recording paper itself is often not flat.In this way, the uneven recording needles and fins are also uneven, so when pressing the recording paper 9, using a hard press plate will result in good recording. is not obtained.

Therefore, in the present invention, a push plate 8 having high electrical insulation and elasticity is used, and the recording portion of the recording paper 9 is arranged along the tip of the recording needle 18 which is misaligned as described above. . FIG. 4 shows a resilient push plate 19 fixed to a cam plate 56, and a cam roller 57 is engaged with the cam portion 56a, and a pull rod 57a connected to the cam roller 57 is shown in FIG. When the cam plate 5 is moved in the direction of the arrow 58, the cam plate 5
A press plate 19 fixed to 6 presses the recording paper 9 against the recording needle hook 8, applying a contact pressure of about 3 grams. on the other hand,
The capstan 20 advances the recording paper 9 by 0.2 steps per step by the step motor 59, but the pinch roller 21, which is in pressure contact with the capstan 20, Since the recording paper 9, which has a relatively large load, is conveyed with ease, it is necessary to increase the contact pressure against the capstan 20 during recording.

The present invention provides a support frame 60 for the pinch roller 21 and a leaf spring 61.
A roller bearing 64 is constructed between the cams 62 provided in the cam 62, and has a cam roller 63 that contacts the cam 62, and rollers 63a and 63b that contacts the support frame 60. roller bearing 6
When the puller 64a provided at one end of the cam 64 is moved in the direction of the arrow 58, the cam roller 63 moves via the cam 62 in a direction that increases the biasing force of the leaf spring 61. The increased biasing force of the leaf spring 61 acts on the pinch roller 21 via the cam 62, cam roller 63, roller bearing 64, rollers 63a, 36b, and support frame 60, increasing the pressing force of the pinch roller 21 against the capstan 20'. It will be necessary to do so. The pull rod 64a is connected to a pull bar 57a for controlling the pressing force of the push plate 19, and the pressure force of the pinch rollers 21 and the bale pressing force of the push plate 19 are increased almost simultaneously.

Next, the fixed blade 22 and the movable blade 23 of the cutting section are disposed close to each other, almost directly above the pinch roller 21 and the capstan 20. When not cutting, there are approximately 7 to 8 gaps between the blade edges of the fixed blade 22 and the movable blade 23, allowing passage between the gaps.Both ends of the fixed blade 22 and the movable blade 23 are fixed by a pair of mutually parallel links so that they can be rotated freely, and the fixed blade 22 and the movable blade 23 form two opposing sides of a parallelogram.A link 65 is attached to one end of the movable blade 23.
An electromagnetic plunger 66 connected by
The recording paper 9 is cut between the fixed blade 22 and the movable blade 23 by the operation of the electromagnetic plunger 66. Figure 5B
1 and B2 indicate the initial stop position when the recording paper 9 is loaded.

Since the recording paper 9 is wound into a roll, curls remain at the leading edge of the recording paper. In this way, the leading edge of the recording paper with the curl remaining is inserted into the gap between the recording needle 18 and the push plate 19 in the recording section 5, the capstan 20 and the pinch roller 21, etc., so the shape of the leading edge of the recording paper Problems such as catching and jamming are less likely to occur when the paper is slanted as shown in FIG. 5 AI and A2 rather than flat. However, if one paper detector is used, recording will be started by detecting the tip of the recording paper 9, creating the possibility that recording will be performed on the notch of the recording paper 9. Therefore, two paper detectors 24 and 24a are arranged in the movable blade 23, and recording starts after both paper detectors 24 and 24a detect recording paper (indicated by diagonal lines) as shown in FIG. 5 B1 and B2. This prevents recording from being performed on the cutout portion of the recording paper 9 as described above. The shape of the paper in the recording area can always be kept rectangular or square. 6A to 6E are side views showing the main part of the recording paper conveying section 5 and a part of the discharging section 6 in FIG. 1, and the operating states of the cutting members 22 and 23 will be explained.

In FIG. 6A, the recording paper 9 is in contact with the recording needle 18, and has passed between the capstan 20 and the pinch roller 21, and between the fixed blade 22 and the movable blade 23, but there is still a gap between the discharge pulleys 25 and 27. This indicates that the recording signal is in a standby state.

When the recording signal is received, the recording paper 9 is moved to the capstan 20
The recording paper 9 is held and conveyed by the pinch roller 21, and recording is started by the recording needle 18, and the leading edge ga of the recording paper 9 is held by the feed pulleys 25 and 26 as shown at B.

When the recording starts, a counter (not shown) installed inside the control circuit 2 of FIG. 1 starts counting the number of steps of the capstan 20.

The recording paper 9 is moved by the electromagnetic plunger 66 to change the distance from the recording needle 18 to the cutting surface of the cutting members 2/2, 23 when the capstan 201 reaches the preset number of steps. Move the blade 23 to cut the recording paper 9 and cut the unrecorded portion 9b as shown in C.
Separate. The recording paper 9 is then conveyed, and the non-recorded portion 9b of D is conveyed by the 9E conveying belts 26 and 2 in the conveying section 6 in FIG.
8 and is discharged to the selvage paper storage box 33. When the recording signal stops, the counter (not shown) installed inside the control circuit 7 in FIG. 1 starts counting from the time when the last recording signal is received, and the number of steps of the capstan 20 reaches the preset number of steps. When the last recorded text on the recording paper 9 reaches the cutting surface of the cutting members 22 and 23, the movable blade 23 is moved to cut the recording paper 9.
, and disassemble the recorded portion gc as shown in E. Then, the recorded portion 9c is sandwiched between the ejection belts 26 and 28 in the first picture image feeding section 6 and ejected onto the tray 37. The above description of FIGS. 6A to 6E is based on the case where one sheet of paper is recorded for one reception, but when recording a large number of sheets for one reception, the cutting signal to the movable blade 23 is It can also be controlled by a received signal instead of a counter. FIG. 7 shows the cutting sections 22, 23 and the discharge section 6 in FIG.
FIG. 3 shows a perspective view of the recording paper 9, and the discharge state of the recording paper 9 will be explained.

The cutting member 22 is held between the discharge pulleys 25 and 27.
, 23, the leading edge of the recording paper (not shown) is
Discharge belt 2 suspended on 8E conveyance booleys 25, 25a
6 and the lower side of the delivery belt 28 suspended between the scale feeding pulleys 27 and 27a, the scale feeding pulley 2
It is discharged from 5a and 27a. the discharge pulley 25,
25a, 27, 27a are driven by the rotational force of the temporary feed motor 67, but the rotational force of the discharge motor 67 is transferred by the belt 68 to the pulley 69a of the auto slipper 69 (
The input section) is rotated and connected to the drive shaft 69b via the drive shaft 69b (output shaft). Pulley 27a
Rotate. Furthermore, at least one pulley connected to the drive shaft 69b transmits rotational force to the discharge roller 35 via the belt 35a. The auto slipper 69 is provided to absorb the difference in conveying speed of the recording paper 9 between the recording section 5 and the discharging section 6 shown in FIG.

That is, in the recording section 5, the recording paper 9 is inserted into the capstan (Fig. 4 2) connected to the step motor (Fig. 4 59).
0) at an irregular speed, and in the scarlet feeding section 6,
The recording paper 9 receives a driving force from the discharge motor 67 so as to be transported at a constant speed. However, the recording paper 9, which is a single piece,
It is undesirable to feed the recording paper 9 at two conveying speeds because it causes loosening or tensile force on the recording paper 9. Therefore, when the leading edge of the recording paper 9 is held by the recording section 5 and the discharging section 6 at the same time, an auto slipper 69 having a slip mechanism moves the cutting members 22 and 2 according to the conveying speed of the recording paper 5.
As a result of being cut by 3, if 9E is held only by the feeding section 6, it is quickly ejected at the original ejection speed of the ejecting section. FIG. 8 is a sectional view showing the internal structure of the auto slipper 69.

The rotational force transmitted from the discharge motor 67 in FIG. 7 via the belt 68 drives the pulley 69a (input section) in FIG. 8. The pulley 69a is rotatably attached to the drive shaft 69b, one side of the pulley 69a contacts the end of the drive shaft 69b, and the side surface of the pulley 69a contacts the end of the drive shaft 69b with a fixing member 70 fixed to the drive shaft 69b with a key. A friction material 71 and a washer 72 are sandwiched between them. Said washers 72
is pressed by a spring 73, pressing the friction material 71 against the pulley 69a. In this way, the discharging mechanism of the discharging section 6 has a slip mechanism to automatically follow the recording speed of the recording section 5, and furthermore, the discharging speed of the Enoki E feeding section 6 is adjusted to the maximum of the recording section 5. The setting is farther than the transport speed.

In other words, if the recording paper 9 is conveyed simultaneously by the recording section 5 and the transport section 6, the pulley 69 in FIG.
Since the load on the drive shaft 69b is greater than the frictional force between the friction material 71 and the friction material 71, the pulley 69a and the fixing member 70 slip via the friction material 71 and the washer 72, and the pulley 27
The ejection speed of a is reduced to the conveyance speed of the recording unit 5. Therefore, the scale feeding speed of the discharge section 6 follows the conveyance speed of the recording section 5. Also, the leading edge of the recording paper 9 is located at the cutting portions 22 and 23.
When only the leading edge of the cut recording paper is sent 9E by the discharging section 6, the drive shaft 69b is cut by the frictional force between the pulley 69a and the friction material 71 in FIG.
Since the load on the pulley 69a and the fixing member 7 is reduced,
0 rotates the drive shaft 69b together with the friction material 71 and washer 72. Therefore, the leading edge of the cut recording paper is quickly discharged at the discharge speed of the discharge section 6. Next, FIG. 9 shows the operating state of the separation plate 29. In the discharge section 6 of FIG. 1, the recording paper sandwiched between the pulleys 25a and 27a is separated by the separation plate 29, and the non-recorded portion is moved by the separation plate 29 as indicated by the arrow 7.
The recording portion is bent in the direction 5a and held between the discharge lo-fu 30 and the discharge belt 28, and the recorded portion advances toward the guide plate 34 along the arrow 76a.

Therefore, the non-recorded portion and the recorded portion are separated. The separation plate 29 in FIG. 9 can be rotated in the direction of an arrow 75A or 768 with a plunger (not shown) about a rotation shaft 74, and A indicates a non-recorded portion between the discharge pulley 30 and the discharge belt 28. B holds the recording part between the guide plate 34 and the discharge pulley 30 and the discharge belt 28.
This shows the state in which the data is being sent in the direction of.

In the recording section 5 of FIG.
23, but the "cut recording paper 9"
The tip of the movable blade 2 is a non-recording part, but whether it is a recording part or a recording part is determined by the movable blade 2 as described in the explanation of FIG.
They can be distinguished by 3 actuation signals. In other words, the non-recorded portion is processed by the timer signal of the control circuit activated by the transmission start signal, and the recording portion is processed by operating the movable blade 23 by the transmission signal or the control circuit timer signal activated by the transmission end signal. Therefore, the timer signal of the control circuit activated by the transmission start signal sets the separation plate to the state shown in Figure A and transfers the unrecorded portion to the scale feed pulley Shigeru and the scarlet belt force. Even when the honey is allowed to stand in the autumn, the separation plate cover scales are placed in the state shown in Figure B by the timer signal of the control circuit activated by the transmission end signal or the transmission signal, and the recorded portion is sent in the direction of the guide plate Hōkame. In this way, the recording paper, which is held and conveyed by the two pupil of the pseudo-feeding belt and the two pupil of the pseudo-feeding belt, is sent in a predetermined direction by the separation plate 2.

[Brief explanation of drawings]

Fig. 3 is a side view showing the inside of the facsimile receiver according to the present invention - Fig. 3 is a perspective view showing the inside of the recording paper storage section fake crab and the recording paper transport section in Fig. The side view is an enlarged detailed view of the recording paper storage section in the 1st army diagram, and the umbrella diagram is a perspective view showing the entire recording unit 5 and a part of the recording paper transport unit base in the 5th diagram. is a front view showing the positional relationship between the paper detector 24 disposed on the movable blade 23 of the recording paper cutting member in FIG.
The figure is a side view showing the operating state of the recording paper cutting part 823 in Figure 4, and the second figure shows the inside of the discharge part and the cutting member Maizuru 28 of the recording part in Figure 4. The perspective view, the crane figure, and the cross-sectional view showing the internal structure of the autos IJ per-Sg in the figure, and the @ figure show the separation plate installed in the scale feeding section SI in the mushroom figure. FIG. The relationship between the name of each member and the number written on the drawing is as follows. Silkworm... Aircraft Usa Misaki... Upper recording paper storage section War... Lower recording paper storage section General... The recording paper transport section is also a horse... The recording section is also a crab... The ejection section is small... The Misaki control circuit is also... Crab. ...Recording circuit t @Misaki...Recording paper (top) ~ Maisen...Tip of recording paper @Mother...Unrecorded part to Sardine q...Misaki recording part and Raiko...Recording paper (bottom) too Ryukake...Rainen mouse side to the record needle...The record paper press and the crab mouse capstan W capstan are both the cape pinch roller ~ The bay...the fixed blade is also the cover...the moving pair is also false Maizuru total 8... ...Paper detector~ 2 sen...Separation plate is also Sagi-o...Go to ear paper storage box.Recognition...tray~ Zeniho...Detection part village is also a horse mackerel false state.
〇The electromagnetic plunger is also stupid...The scale feeding motor is also stupid...
Auto slippers - Q *3 Figure 1 Figure 2 Illustrations 4 Figure 5 Figure 6 *Figure Grandchild 8

Claims (1)

[Claims] 1 comprising a driving means for conveying a roll of recording paper, a detection member for detecting the remaining amount of recording paper, and a plurality of recording paper storage units for storing recording paper, one of the recording paper storage units When the remaining amount of recording paper reaches a certain amount or less by feeding recording paper belonging to the An automatic paper feeding device characterized in that, after being reversely fed and rewound into one of the recording paper storage units, the recording paper belonging to the other recording paper storage unit is fed.