JPS58152746A - Belt-shaped material feeder - Google Patents

Abstract

PURPOSE:To reliably perform feeding of a belt-shaped material without occurrence of any jam in such a way that a driving roller with narrower width than that of the belt-shaped material, and another roller or the like attachable/detachable to guide rollers and the driving roller which are arranged on its both sides, and the belt-shaped material is fed while being widthwise. CONSTITUTION:In case where a belt-shaped material F, such as a microfilm or the like is fed into a processing part, such as an image part or the like while it is being pulled out of a feeding reel 2 held in a cartridge 1, then, it is applied to a device which is taking it up around a take-up reel, a film feeding mechanism cntaining an endless belt 3 which is wound between a driving roller 6 and rollers 4, 5 is provided near the cartridge 1. Said driving roller 6 is contrived to be turned by a motor M, and guide rollers 82, 83 are arranged on the both sides of the roller 6 slightly apart from the roller 6. Furthermore, not merely outer diameter of the roller 6 is designed to be smaller than that of the guide rollers 82, 83, but also it is designed narrower than the width of the belt-shaped material F, and they are made to cooperate with a pinch roller 7 provided with two rubber rolls 115.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is directed to a web feeding device that automatically feeds web material wound on a spool along a predetermined path.

Long strip materials such as microfilm, magnetic tape, or motion picture film (hereinafter collectively referred to as "strip materials") are stored on reels in one cartridge for convenience in handling-1 storage, etc. It's rolled up. For devices that use this cartridge, such as microfilm readers, magnetic recording/playback devices, camera cameras, photocopiers, etc.
An automatic film feeder is required.

This type of strip material feeding device winds the strip material between a supply reel and automatically feeds out the tip of the strip material from this reel, and automatically sends the tip of the strip material through a predetermined path to the winding section. We are trying to send it to.

As this feeding device, @l drive belt is brought into contact with the roll of the strip material wound on the reel, and by rotationally driving this first pel F, the roll of the strip material is rotated in the unwinding direction. By bringing the second driving pel F into contact with the roll of the strip material at the foreshadowing line, and driving this second driving pel F to rotate in the opposite direction on the surface opposite to the rotational direction of the roll. A known type is known in which the free end (tip) is stripped off and the stripped tip of the strip is sent out of the thread by a second belt.

In this type of strip material feeding device, the strip material torn off by the second belt is held between a capstan roller and a pinch roller, and the strip material is wound through a predetermined path by rotating the capstan roller. When the strip material is fed to the reel and the leading end of the strip material is wound around the take-up reel, it is necessary to move the capstan roller and the pinch roller out of the strip material feeding path. This is because after the strip material is wound around the take-up reel, the strip material is fed from the supply reel to the take-up reel by the rotation of the take-up reel, so the capstan roller and pinch roller are moved out of the passage. If this is not done, there will be a problem in feeding the strip, and if the capstan roller is located in the passage, there is a risk that the strip will be damaged due to contact with one another.

Additionally, the strip material wound on the spool has a winding ridge, and the tip of the strip material tends to curl in the longitudinal direction, so the tip of the strip material is automatically fed from the supply reel to the take-up reel. When this is done, the tip of the strip material fed out from the supply reel becomes clogged in the middle of the passage, causing the problem that the strip material cannot be fed reliably. In particular, thin strip materials have the problem of easily clogging the passages.

The present invention solves the above problems and provides a strip material feeding device that can reliably feed the strip material without damaging the strip material while keeping the roller for feeding the strip material in a fixed position. It is something.

The present invention will be explained below using specific examples shown in the drawings. 1st
The figure shows a microfilm reader to which the present invention is applied,
1Vi cartridge, 2 is a supply reel housed in cartridge 1, 3 is an endless belt rotatably hung around rollers 4, 5-6, 7 is a pinch roller, 8, 9, and 10 guide rollers, 1IA, . , 111Vi guide plate, 12
14 is a take-up reel, 13 illumination lamps, 14 is a condenser lens, transparent glass plates placed opposite each other across the 15/16 Fi film feed path, 1F is a projection lens, and 1B is a screen. The miter film is wound into a roll on a spool 2A of the supply reel 2. Cartridge 1#'
It is removably arranged at a predetermined position while holding the i-reel 2.

The drive roller 6Fi is driven by a drive kK to be described later and rotates in the direction of the arrow, and the endless belt 3 is driven by the rotation of the roller 6, and the rollers 4 and 6 are rotated. The roller 4 is rotated in the direction of the arrow by the drive of the endless bell 3, and when it comes into contact with the outermost circumference of the miter 4 film wound around the spool 2, the leading edge of the film is ripped off from the film roll, and the roller 4 is rotated in the direction of the arrow by the endless bell 3. Send it out between belts 3.

The cartridge l is also fed by the film company pinch roller 7 and the braiding roller 6, and the guide plate 11B.
110, is sent between a pair of glass plates 15 and 16, and is sent between the guide plates LID and ilm and the guide roller O.
The film is guided and sent to the take-up reel 12. The take-up reel 11 is equipped with an automatic take-up device (not shown), and this automatic take-up device automatically winds the leading edge of the film onto the take-up reel. It is wound up.

The take-up reel 1g is connected to a motor (not shown), and is rotated by the motor in the direction of the arrow.

Microfilm 1 #1 Glass plates 15 and 16 are illuminated by a lamp 13, and the image on the illuminated microfilm is projected onto a screen 18 by a projection lens 17.
It is enlarged and projected onto the top.

Figure 2 shows the details of the film feeding mechanism. In the figure, it is an endless belt rotatably hung around a 50-layer film 51@5g, and is made of a material with a large umbrella friction coefficient such as rubber. . Roller 51/52 #i with pulley shape L10-L5
1 is fixed to a drive shaft 53, and rotatably supported by a shaft 55 fixed to the p-ra 5ge and movable arm 54.

The movable arm 54 is rotatable about the drive shaft 53 and is urged by a coil spring 56 to rotate counterclockwise. A shaft 55 provided on the movable arm 54 is connected to a wire 57, and when the wire 6 is pulled in the direction of the arrow XK, the movable arm 54 rotates clockwise and is placed in the position shown in the figure. It will be destroyed.

58 is a stopper that stops the movable arm 54 at the position shown in FIG. When the wire 67 is loosened, the action of the coil spring 56 causes the movable arm 64 to move around the rollers 61-62,
The belt 11 holding the endless belt 50 rotates counterclockwise, so that the endless belt 50 comes into contact with the outermost periphery of the film wound around the spool 2m. The drive shaft 53 is connected to a drive source (motor) to be described later, and when the drive shaft 53 is driven, the roller 51 rotates in the direction of the arrow M, and from this the endless bell 50 is driven in the direction of the arrow B. . The endless belt 50 contacts the outermost circumference of the film on the reel, and
In other words, the reel 2 rotates eight times in the direction of the arrow 0, which is the direction of the drive gap #1.

Before the leading edge of the film is fed out from the reel, and after the leading edge of the film is fed out from the reel and wound around the take-up reel, the movable arm 54 is placed in the position shown in FIG. 50 is located away from the film. Note that the reel 2Fi is rotatably held by a holding shaft 59 coupled to a drive source.

As shown in FIGS. 5 and 6, the roller 5 has a pulley shape, and gear-shaped portions 4A having concavities and convexities in the roller rotation direction are formed at both ends of the roller number for film stripping. A groove 4B is formed in the center, and the endless belt 3 is fitted into 1% of this groove. Gear part 4 of roller 4
The outermost surface of the belt is an endless belt 3 wound around a roller 4.
When the roller 4 moves toward the outermost periphery of the film on the reel, the gear portion 4A contacts the outermost periphery of the film.
jDo not touch the outermost periphery of the film. The roller 4 is made of a material with a small coefficient of friction, such as a plastic material. The uneven shape of the circumferential surface of the roller 4 is not limited to that of the embodiment.

In FIGS. 5 and 6, the roller 4 is rotatably supported by a shaft 62 fixed to a 17th member 61. As shown in FIGS. The roller holder 27 is rotatably supported by a shaft 64 fixed to the 27th arm 63. The tip of the first arm 61 is bent, and this bent portion 611 has an L-shape. Further, the second arm 63 has a long hole 63m in the center, and an L-shaped bent portion 63B is provided along this long hole 63m. Bending of the first arm 61! 1661mushajI! The elongated hole e3hVcf of the fil arm 63 is inserted into the elongated hole e3hVcf of the fil arm 61, and it is loosely fitted into a slit-like opening (not shown) provided in the shaft a2Fi of the first arm 61. It is held by the 27th arm 63 so that it can slide in the xyc directions. The bent portion 61A of the first arm and the bent portion 63B of the second arm are fitted with a coil spring link 65, and the coil spring 65 moves both bent portions in a direction that separates them, that is, a direction that moves the rollers 4 and 5 apart. have been given the power to Therefore, low 24
@5 can move in the direction of approaching and separating within a predetermined range.

2nd Arm 63 In FIG. 2, the movable arm 70 (FIG. 2) is fixedly supported by a shaft 71 fixed to the movable arm 70 (FIG. 2). It is rotatable about an Oij shaft 3, and is urged by a coil spring 4 to rotate counterclockwise. &I provided on the movable arm 70
71 is connected to a wire 57, and when the wire 57 is pulled upward, the movable arm 70 rotates clockwise.
The movable arm 70 is placed in the position shown in FIG. The second arm 63ij moves integrally with the movable arm 70, and the second arm 63ij moves integrally with the movable arm 70.
The intersection angle between arm 63 and movable arm 70 is kept constant. 75 is a stopper that stops the movable arm 0 at the position shown in FIG. When the wire 57 is loosened, the fill spring 4 rotates the movable arm 70 counterclockwise, and the first and 27th arms 61 and 63 move integrally with the movable arm 70, which causes the roller 4 to move. Spool 2
contact the outermost periphery of the film wound on the film. In this state, when the drive roller 6 rotates in the direction of arrow 1, the endless belt 3 is driven in the direction of arrow G, which causes the roller number to rotate clockwise and peel off the leading edge of the film wound around the two spools. to work.

Before the leading edge of the film is fed out from the reel, and after the leading edge of the film is fed out from the reel and wound around the take-up reel, the movable arm 70 is placed in the position shown in FIG. is located away from the film.

FIG. 7 shows the drive mechanism of the drive row 56 and the tension/relaxation mechanism of the wire 57. In the same figure, the drive roller 6F
It is fixedly supported by a drive shaft 80 connected to a forward/reverse rotation motor y, and rotates in one direction in FIG. 2 when the motor M rotates forward. At both ends of the drive roller 6, the drive roller 6
Guide rulers 82 and 83 are arranged at a distance from each other, and as shown in FIG. -, so that no driving force is transmitted from the drive shaft 80 and the drive roller 6. A coating layer 6 (FIG. 8) made of a material with a large friction coefficient, such as a rubber material, is provided on the surface of the drive roller 6, and a groove 6B for fitting the endless belt 3 is provided in the center of the coating layer 6. There is. Endless bell wound around the driving p-ra 6)
3 outer diameter and drive roller 6 outer diameter company guide roller 82 @
It is set smaller than the outer diameter of 83. Further, the drive roller 6Fi has a width smaller than the width of the film to be fed. 84ij is an auxiliary guide loaf for guiding a wide-width film (for example, 35mm film), and the drive shaft 80
is rotatably supported.

In FIG. 7, 90 is a friction disk, and this main disk 90
ij is connected to the drive shaft 80 via a one-way clutch g1.

When the motor M rotates forward, the drive shaft 80 rotates,
Since the one-way clutch 91 does not operate, the friction disc 90 does not rotate around the drive shaft 80. When y is driven in the reverse direction to the motor, the one-way clutch 91 is activated, and the rotation of the drive shaft 80 is transmitted to the friction disk 90, and the rotation of the drive shaft 80 is transmitted to the friction disk 90.
i It rotates integrally with the drive shaft 80. 92 is a friction disk 90
A wire winding drum 92 is rotatably held by a wire winding drum, and one end of a wire 57 is fixed to this drum 92, and the wire 57 is wound around the circumferential surface of this drum. Felt 93 is arranged on both end surfaces of the drum 92. In addition, the rear KFi spring holder of the main disc 90 is provided with plates 95 and 96, and the spring holder has a coil spring 9 between the plates 95 and 96.
Due to the action of this coil spring 97, the adhesive disc wo
K is pressed and φ. That is, it is connected to a friction disk 90 via a friction transmission mechanism consisting of drums 9, 2ij, etc., and the rotational force of the disk 90 is transmitted to the drum 92 via the friction transmission mechanism.

Therefore, when the motor is driven in reverse, the one-way clutch 9
1 rotates the friction disk 90, which causes the drum 9 to rotate.
2 rotates, the wire 57 is wound around the drum 92, and the movable arms 54, 70 move to the positions shown in FIG. Further, in the state shown in FIG. 2, when the motor M is driven in normal rotation, the wire δ is pulled by the action of the coil springs 56 and 74, and the drum 9j! is reversed, drum 92
The wire 6 wound around the wire 6 is pulled back in the opposite direction to the upward direction. As a result, the movable arms 54 and 70 rotate in the counterclockwise direction so that the L% film stripping roller 4 and the endless belt 50 come into contact with the outer periphery of the film on the reel 2.

In Fig. 7, -98 is a plane wheel fixedly supported by the drive shaft 80, and this gear 98 is connected to the drive shaft 53 shown in Fig. 2. When the motor M is driven, the gear 98 and the drive shaft The roller 51 rotates via the roller 53, and the endless belt 50 is driven. hi, #i rewind motor, this motor M
, is connected to a holding shaft 59 that holds the keel 2,
When the motor M3 is driven, the reel 2 rotates counterclockwise, and the film is wound onto the reel 2.

In FIG. 2, the vinyl rough is rotatably provided on the arm 110, and is rotatable around the arm 110 II axis All.
It is biased by K to rotate clockwise.

One end of the arm 110 is connected to a solenoid plunger 114 via a Klfi coil spring 113,
When the solenoid plunger 114 is actuated, the arm 110
rotates counterclockwise, and the pinch roller 7 is pressed against the drive roller 6. Pinch roller? As shown in FIG. 8, two rings 115 made of a material with a large friction coefficient such as rubber are wound around the circumferential surface, and these two rings 115 are driven when the pinch roller 7 is pressed against the drive roller 6. p-
It is provided at a position in contact with the coating layer 6 of the layer 6.

A pinch roller 7F1 with a width narrower than that of the drive roller 6 may be used, preferably one having a width or an uneven shape that presses only the central region of the film against the drive roller 6.

Next, the operation of the above device will be explained. Before the film is fed out from the supply reel 2, it is in the state shown in FIG.

In this state, press the start button (
(not shown) causes the motor M to rotate forward and the solenoid brassiere 14 to operate. The drive roller 6 and the roller 51 are rotated in the direction of the arrow by the normal rotation of the motor M, and the endless belts 3 and 50 are accordingly driven in the direction of the arrow. Furthermore, since the drive shaft 80 rotates in the same direction due to the forward rotation of the motor M, the wire winding drum 92 rotates in the direction of unwinding the wire 57, and the wire 57 becomes loose. As a result, the arms 54 and 7 degrees rotate counterclockwise, respectively.

The rotation of the arm 50 brings the endless belt 50 into contact with the outermost circumference of the film wound around the spool 25, and the roll of film rotates in the C direction (the direction in which the film is wound and unpacked). On the other hand, as the arm 7o rotates, the first and 27th arms 61 and 63 (Fig. 5) move integrally with the arm 7'0,
Along with this, the stripping roller number moves toward the film wound on the two spools.

While the arms 61 and 63 are moving, the drive roller 6 is at a constant position, so the tension of the endless belt 3 changes, but the 17th-
Since the arm 61 slides linearly with respect to the second arm 63, the distance between the rollers 4 and 5 changes according to the expansion and contraction of the endless belt 3, thereby preventing the endless belt 3 from loosening and causing a large There is no fear of being stretched. At the position where the roller 4 comes into contact with the outermost periphery of the film, the counterclockwise rotation of the finish member 7o is stopped, resulting in the state shown in FIG. 3. In this state, the roll of film rotates in a clockwise direction;
Since the roller 24 rotates in the opposite direction to the rotational direction of the roll on the surface facing the film, when the leading edge of the film comes into contact with the gear lane number of the roller number, the leading end of the film is stripped off from the roll.

Now, if the KO-roller 4 comes into contact with the film's outer periphery when the leading edge of the film has passed the contact point a (Fig. 3) between the roller 4 and the film's outer periphery, the unevenness of the roller surface Therefore, since the contact area between the film and the roller is small and the friction coefficient of the roller 4 is small, the leading edge of the film cannot be returned in the opposite direction toward aAK by the rotational force of the roller 4. Therefore, in this case, when the tip of the Ifi film rotates clockwise and reaches one point while being guided by the inner wall surface of the cartridge L, the gear portion 4 of the roller 4
It will engage A and be stripped from the roll.

In the conventional method, when the coefficient of friction is large ≠ the endless belt is brought into contact with the outer circumference of the film and the leading edge of the film is peeled off, when the leading edge of the film passes point a,
When the endless bell F comes into contact with the point, the leading edge of the film is returned in the opposite direction toward point a by the driving force of the endless belt, and a loop of the film is formed near the film feeding path of the supply reel. Although there has been a problem that the loop gets stuck in the passage, according to this embodiment, the above problem does not occur at all. Furthermore, even if the four rollers 4 come into relatively strong pressure contact with the outer periphery of the film, by reducing the friction coefficient of the roller, the leading edge of the film can be kicked off and separated without stopping the rotation of the roll. The film yFi stripped from the reel is fed between a drive roller 6 and a pinch roller 7 by an endless belt 3.

Solenoid plunger 11 is activated by operating the star) button.
4 is activated, which causes the pinch roller 7 to move to the drive roller 6.
, the film sent between rollers 6 and 7 is further fed by both rollers, and the film is pushed between the guide plate 11B.
・110K is guided and fed to the winding wheel 12.

When the film 1 is held between the drive roller 6, the guide rulers 82 and 83, and the pinch roller 7, the outer diameter of the drive roller 6 is smaller than the guide rollers 82 and 83, as shown in FIG. I'm sure it will be delivered in a curved state. As a result, the rollers 6, guide rollers 8, 2; 83, and vinyl rollers reduce the curling of the leading edge of the film, and the leading edge of the film is shaped to stretch straight, allowing the leading edge of the film to be guided along a predetermined path. It can be fed smoothly.

Even when a particularly thin and stiff film is used, the film can be reliably fed to the take-up reel without clogging the passage.

When the leading end of the film is wound around the take-up reel 12, a winding detector (not shown) detects the winding of the film, and this detection signal causes the solenoid plunger 114 to become inactive aK, and the motor M is driven in reverse. The friction disk 90 is rotated via the drive shaft 80 by the reverse rotation of the motor M, thereby the wire winding drum 92 is rotated, and the wire 5 is wound around the drum 92 . By winding the wire 57, the arm 5
4 and 70 rotate clockwise, the roller 4 and the endless belt 50 are separated from the outer periphery of the film on the reel and returned to the original position shown in FIG. Motor M stops when driven in reverse for a certain period of time.

The leading edge of the film is wrapped around the take-up reel (and the pinch roller 7
moves out of the film feeding path, and thereafter the film is fed from the supply reel to the take-up reel at high speed by the rotation of the take-up reel 1z. When the pinch roller 7 moves out of the path, the film 1 contacts the guide rollers 82 and 83 and does not contact the drive roller 6. Guide low 282.8
3 is rotatably supported by the drive 1d180, so
Rotates as the film moves. Therefore, even if the drive roller 6 remains in a fixed position after the pinch roller moves out of the path, there is no risk of scratching the film.

FIG. 4 shows the state in which the leading end of the film is fed out when the diameter of the film wound around the kineer 2 is small. Since the driving roller 6 on which the endless belt 3 is hung is at a fixed position, when the endless belt 3 is moved toward the film, the endless belt 3 expands and contracts according to the amount of film wound on the reel 2. - Since the interval between the bells 44I5 can be changed by a predetermined length, the endless bell 3 does not expand or contract significantly.

Therefore, there is no need to use a belt that can expand and contract significantly as the endless belt F, and the tension of the endless belt does not change significantly. As a result, the roller 4 is not strongly pressed against the outer periphery of the film, and the roller 4 can be pressed against the film VC with a substantially constant force regardless of the size of the film winding diameter.

In the above embodiment, the endless belt 50 is brought into contact with the film roll to rotate the roll, but it is also possible to bring a freely rotatable roller into contact with the film or reel and rotate this roller to rotate the film roll. It's okay.

Further, other cartridges may be used as the cartridge, and the reel may be attached to and detached from the holding shaft without using the cartridge. If a cartridge is not used, it is necessary to provide a film guide member around the reel.

As described above, according to the present invention, since the strip material is bent in the width direction, the tip of the strip material can be reliably fed along a predetermined path, and the jam of the strip material can be avoided. Occurrence can be prevented.

Further, even if the drive roller is not moved but is placed at a fixed position, there is no risk of damaging the strip material, and the strip material can be fed safely.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a MyF film reader showing one embodiment of the present invention, FIG. 2 is a block diagram of a film feeding device, and FIGS. 3 and 4 are diagrams explaining the operation of the film feeding device. Figure 5 is a perspective view of the film stripping section, and Figure 6 is a perspective view of the film stripping section.
Figure 7 is a cross-sectional view of the main parts of the drive roller drive mechanism and wire tension/relaxation mechanism, and Figure 8 is a cross-sectional view of the drive roller and pinch roller. 2.0. Supply reel 4-5/6. ,,roller 3/5
0,,,Endless belt 12. ,,, Take-up reel No. 7
Figure 8M

Claims (1)

[Claims] A device for automatically feeding a strip of material wound on a spool along a predetermined path, comprising: a drive roller having a width narrower than the strip and placed at a fixed position; at least two guide rollers rotatably provided on the axis of a roller and disposed on both sides of the drive roller; 1. A belt material feeding device comprising a freely movable roller, the drive roller having an outer diameter smaller than that of the two guide rollers.