JPH0661852U - Tape winding device - Google Patents

Abstract

(57) [Summary] [Purpose] A tape winding device that winds a tape around a flangeless hub in a disk shape eliminates damage to the side edges of the tape and traps foreign matter between the tape layers. The winding side surface is flattened while preventing unevenness between layers. [Structure] The first arm 12 is fixed to a mounting frame 11 of a lifting mechanism. The arm 12 supports the second arm 13 so as to be vertically swingable. Between the two arms 12 and 13, the second arm 1
A spring 15 for canceling the weight of the third arm 13 and an air cylinder 16 for suppressing the vertical swing of the second arm 13 are provided. The roller arm 22 is swingably supported at the tip of the second arm 13. The roller arm 22 rotatably supports the correction roller 18 and the touch roller 19. An air cylinder 24 for tilting the roller arm 22 is provided on the second arm 13.
The straightening roller 18 has a crown-shaped roller peripheral surface 18b, and parallel flanges 18a are provided on both sides thereof.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a tape winding device for winding a tape in a disk shape on a flangeless hub.

[0002]

[Prior art]

 Examples of this type of tape winding device include Japanese Utility Model Publication No. 58-23809 and Japanese Patent Publication No. 62-31645. There, the rollers with flanges on both sides of the roller guide the tape in a transitional manner to mechanically correct the lateral deviation when the tape is wound into a disk shape. In the former publication, a pair of flanges are provided in parallel, and in the latter publication, a pair of flanges are provided in a tapered shape. The arm that supports the roller pair is moved in parallel by the elevating mechanism according to the increase in the diameter of the tape roll.An air bleeding roller is provided separately from the above flanged roller, and this is pressed against the tape roll to wind the tape. It is also known in each of the above-mentioned publications to avoid the entrapment of air when performing the removal.

[0003]

[Problems to be solved by the device]

 When manufacturing magnetic tape, a wide roll is cut into a predetermined width, then the tape of a fixed length is wound into a disc on a flangeless hub, and the tape roll in this state is finally assembled into a tape cartridge. Supply or ship to the process. In this tape winding process, the tape must not be damaged or foreign matter must be caught, and the disk-shaped tape roll has no unevenness between the winding layers because it causes dust to accumulate, and It is required to be sufficiently flat. However, conventional devices cannot sufficiently satisfy the above requirements.

Damage to the tape or the tape roll occurs when the flanged roller is pressed against the tape roll for winding. Since the tape is clamped between the tape roll and the flanged roller, the lateral movement of the tape is prevented even when the lateral deviation is corrected, and the side edges of the tape are easily damaged. In the case of a flanged roller having a tapered flange, the flange interval becomes wider as it gets closer to the outer peripheral edge, so that the deflection of the tape roll by the flange cannot be sufficiently controlled. When the roll diameter of the tape roll increases and the amount of lateral runout increases, the peripheral edge of the tape roll rubs the flange portion in line contact with each other and is easily damaged. This scratch remains as a circular friction mark on the winding side. Especially during high-speed winding, the outermost winding layer may be laterally displaced due to lateral runout of the tape roll. Therefore, in the conventional device, a flanged roller is provided 180 degrees out of phase with the pressing roller. Holds the peripheral side surface of.

Entrapment of foreign matter is likely to occur at the time when the winding of the tape is started. In many cases, the hub is formed wider than the tape width, so that the periphery of the flange portion of the flanged roller circumscribes the hub periphery at the beginning of winding the tape. Moreover, the peripheral speeds of the two do not always match. As a result, in many cases, the peripheral surface of the hub is scraped off, and the dust gets into the tape layers.

The unevenness between the layers of the tape roll is caused by the above-mentioned foreign matter being caught in, air being caught in, or variations in the winding force of the tape roll in the circumferential direction. In a conventional device that uses a pressure roller for removing air in addition to the flanged roller, air entrapment can be prevented to some extent, but it is still insufficient. Most of the air is pushed out by the pressure roller, but the tape between the rollers is forcibly pressed against the tape roll by the flanged roller and the pressure roller, so some of the air that has been entrapped remains between the layers. Because it will be caught. The entrainment of air becomes more remarkable as the winding speed increases. The variation in the winding force of the tape roll in the circumferential direction is caused by the rotational runout of the tape roll and the variation in the tension acting on the tape that moves, but in this respect, no consideration has been given to the conventional device.

The cause of the unevenness of the flatness of the winding side surface of the tape roll is that the tape roll laterally shakes, the guide rollers such as the flanged roller, and the slight lateral shake of the arm that supports these roller pairs. Are considered to occur in combination. In this respect, in the case of a conventional device that responds to an increase in the winding diameter of the tape roll by swinging and displacing the arm that supports the roller pair in a cantilever-supported state, the amount of lateral shake at the tip of the arm is reduced. It was difficult to obtain sufficient flatness. When the flatness in the conventional device was evaluated as the surface roughness, the maximum height roughness (Rmax) reached 20 to 50 μm. The winding side surface was largely undulated, and the maximum undulation width reached 30 μm.

Therefore, an object of the present invention is to eliminate the damage of the side edge of the tape and the entrapment of foreign matter between the tape layers when winding the tape, and at the same time, there is no unevenness between the tape layers in the tape roll, and the winding side surface is flat The purpose of the present invention is to obtain a tape winding device that can sufficiently improve the degree.

[0009]

[Means for Solving the Problems]

 The tape winding device of the present invention comprises a driving mechanism for rotating the flangeless hub 2 and a tape feeding mechanism for guiding the tape 1 fed from the tape feeding source toward the periphery of the hub 2. , And an elevating mechanism that shifts the tape supply mechanism in parallel according to a change in the winding diameter of the tape roll 3 wound around the hub 2. The tape supply mechanism is arranged between the first arm 12 fixed to the mounting frame 11 of the elevating mechanism, the second arm 13 supported by the first arm 12 so as to be vertically swingable, and between the arms 12 and 13. It includes a spring 15 for canceling the weight on the side of the second arm 13, an air cylinder 16 for suppressing the swinging motion of the second arm 13, and a roller pair provided at the tip of the second arm 13. The roller pair includes a front roller 17 rotatably supported by the second arm 13, and a straightening roller 18 for guiding the tape 1 passing through the front roller 17 toward the peripheral surface of the hub 2 or the tape roll 3. And a touch roller 19 circumscribing the peripheral surface of the hub 2 or the tape roll 3. The straightening roller 18 is formed by a flanged roller having a roller peripheral surface 18b having a middle bulge and a pair of parallel flanges 18a. The straightening roller 18 and the touch roller 19 are rotatably supported by a roller arm 22 that is swingably supported at the tip of the second arm 13. An actuator 24 that swings the roller arm 22 to change the position of the correction roller 18 is provided between the second arm 13 and the roller arm 22.

Specifically, the swing center axis of the roller arm 22 is provided on a vertical line passing through the center of the drive shaft 4, and the roller arm 22 is an actuator 24 composed of an air cylinder. 2 and the avoidance position away from the peripheral surface of the tape roller 3 via a small gap E, the roller peripheral surface 18b of the correction roller 18 faces the peripheral surface of the tape roll 3, and the flange 18a of the correction roller 18 is the peripheral side surface of the tape roll 3. It is configured so that it can be switched between operating positions that face each other with a minute gap. The second arm 13 is swingably supported by the first arm 12 via a cross roller bearing 21. The hub 2 fixed to the drive shaft 4 is detachably attached to the hub 2. The hub holder includes an inner sleeve 5 fixed to the drive shaft 4, a combination bearing 6 externally fitted and fixed to the inner sleeve 5, an outer sleeve 7 externally fitted to the bearing 6, an outer peripheral surface of the inner sleeve 5, and an outer sleeve 7. A magnetic clutch 8 is provided between the inner sleeve 5 and the inner peripheral surface, and the outer sleeve 7 is rotatably supported by the inner sleeve 5 only through the combination bearing 6. The lifting mechanism includes a pair of linear guide blocks 28 fixed to the frame 27 in a vertical posture, a pair of movable blocks 29 vertically reciprocated by the guide blocks 28, and a feed screw having one end connected to the movable block 29. The shaft 30 and a lifting force transmission mechanism 32 that transmits the rotational power of the motor 31 to the feed screw shaft 30 to move the feed screw shaft 30 up and down. Then, the mounting frame 11 that supports the tape supply mechanism is fixed between the pair of movable blocks 29. A roll diameter sensor 37 that detects a change in the winding diameter of the tape roll 3 is provided outside the peripheral surface of the tape roll 3, and the operating state of the motor 31 of the lifting mechanism is controlled by the control device 36 based on the output signal of the roll diameter sensor 37. Configured to control.

[0011]

The tape 1 fed from the tape supply source is moved and guided toward the peripheral surface of the hub 2 or the tape roll 3 via the front roller 17 and the straightening roller 18, and the hub 2 or the touch roller 19 is used to guide the tape 1. The tape roll 3 is pressed and wound up. At this time, the tape 1 passing through the straightening roller 18 is only in contact with the straightening roller 18 and can freely move laterally. Therefore, when the lateral deviation of the tape 1 is corrected by the correction roller 18, the side edge of the tape 1 is not damaged. The fact that the roller peripheral surface 18b of the straightening roller 18 is formed in a bulge shape so that the tape 1 itself can be provided with a self-centering function is also useful for preventing the side edge of the tape from being damaged.

The straightening roller 18 can change its vertical position with respect to the second arm 13 at the start of winding the tape 1 and thereafter. More specifically, the roller arm 22 is tilted by the actuator 24 at the start of winding to prevent the flange edge of the correction roller 18 from coming into contact with the peripheral surface of the hub 2. As a result, it is possible to prevent generation of dust due to the contact between the hub 2 and the straightening roller 18.

After the winding amount of the tape roll 3 reaches a predetermined value, the roller arm 22 is tilted in the opposite direction by the actuator 24 and the peripheral side surface of the tape roll 3 is tilted by the pair of flanges 18 a of the straightening roller 18. Hold through a small gap. That is, the correction roller 18 simultaneously corrects the lateral deviation of the tape 1 and the lateral deviation of the tape roll 3. At this time, since the pair of flanges 18a are provided in parallel, even if the tape roll 3 may come into contact with the flange 18a, the contact form is surface contact, so that the peripheral edge thereof is not damaged.

When the roller peripheral surface 18 b of the straightening roller 18 is formed to have a center bulge, the tape 1 comes into contact with the tape roll 3 at the center in the width direction thereof, and then the tape roll 3 is moved by the touch roller 19 in this state. It is pressed against the circumference of 3. In other words, even if air is caught between the peripheral surface of the tape roll 3 and the tape 1, the contact surface pressure at the center of the tape 1 in the width direction is high, so the air that has been caught is pushed out to both sides of the tape 1 in the width direction. When it passes through the touch roller 19, it is completely removed from the tape layer. This means that the unevenness of the tape winding layer can be eliminated and the lateral deviation of the outermost winding layer can be prevented during high-speed winding.

The second arm 13 of the tape supply mechanism is supported so as to be vertically swingable with respect to the first arm 12, and a spring 15 for canceling the weight and an air cylinder 16 are provided between the arms 12 and 13. This is to cope with the rotational runout of the tape roll 3 and the tension fluctuation of the tape 1. Since the weight of the second arm 13 that supports the roller pair is offset by the spring 15, when the tape roll 3 has a rotational shake, the tape force acting on the front roller 17 is reduced by the amount of the fluctuation. As a result, the second arm 13 slightly oscillates up and down to absorb the fluctuation, thereby making the winding force of the tape 1 substantially constant. At this time, in order to prevent the second arm 13 from making an excessive swing response, the air cylinder 16 is used as a shock absorber. Fluctuations in tension on the side of the tape 1 that is transferred are also absorbed in the same manner. In the steady state, the second arm 13 is held and fixed by the spring 15 and the air cylinder 16, and moreover, the entire tape supply mechanism is moved in parallel by the elevating mechanism. The swinging support by the arm 12 does not immediately adversely affect the winding state of the tape roll 3. In particular, when the second arm 13 is supported via the cross roller bearing 21 having a centering function, the lateral shake at the tip of the second arm 13 can be sufficiently reduced.

[0016]

[Effect of device]

 In the present invention, when the tape 1 is wound up, when the tape 1 passes the straightening roller 18, only the straightening roller 18 comes into contact with the straightening roller 18 so that the tape 1 can freely move laterally. Further, the roller peripheral surface 18b of the straightening roller 18 is formed in a bulge shape so that the tape itself can correct lateral deviation by exerting an aligning force on the tape surface. As a result, it is possible to prevent the side edge of the tape 1 from being damaged when the lateral deviation is corrected. The posture of the roller arm 22 is changed by the actuator 24 so that the peripheral edge of the flange portion of the straightening roller 18 is prevented from coming into contact with the peripheral surface of the hub 2 when the winding of the tape 1 is started. It is possible to eliminate the generation of dust due to scraping of the tape, and it is possible to eliminate tape defects due to the dust being caught between the tape layers.

Since the roller peripheral surface 18 b of the straightening roller 18 is formed in a bulge shape so that the air trapped between the tape 1 and the tape roll 3 can be easily discharged, air entrapment between the tape layers can be prevented. It is possible to prevent entrapment and entrapment of suspended dust. It is also possible to prevent the winding layer on the outermost surface of the tape roll 3 from being laterally displaced. Further, the second arm 13 is supported by the spring 15 and the air cylinder 16 to absorb the rotational runout of the tape roll 3 and the fluctuation of the tension of the tape 1 and maintain the winding force of the tape 1 substantially constant. A tape roll 3 having no crack is obtained. The parallel brim 18a of the straightening roll 18 constantly straightens the lateral runout of the peripheral side surface of the tape roll 3 to wind the tape, and the entire tape supply mechanism including the straightening roll 18 increases the winding diameter of the tape roll 3. In accordance with this, the lifting mechanism moves in parallel to improve the flatness of the winding side surface of the tape roll 3 in the wound-up state, and as a whole, a tape winding device that eliminates defective tape shape, defective winding shape, etc. Obtainable.

[0018]

【Example】

 In FIG. 5, the tape 1 is formed by cutting a wide sheet fed from an original roll (not shown) with a slitter, and each of the cut group of tapes 1 is disc-shaped by a tape winding device. To be wound up. The tape winding device includes a drive mechanism that rotationally drives the flangeless hub 2, a tape feeding mechanism that guides the tape 1 toward the peripheral surface of the hub 2, and a tape feeding mechanism that winds the tape roll 3 around the winding diameter. It is equipped with an elevating mechanism that raises and lowers in parallel according to changes.

The drive mechanism has a drive shaft 4 rotatably driven by a power mechanism (not shown), a group of hub holders is mounted on the drive shaft 4, and the hub 2 is mounted on each hub holder. In FIG. 6, the hub holder includes an inner sleeve 5 fixed to the drive shaft 4, a combined bearing 6 externally fitted and fixed to the inner sleeve 5, an outer sleeve 7 externally fitted and mounted on the bearing 6, and an outer peripheral surface of the inner sleeve 5. A magnetic clutch 8 is arranged between the outer sleeve 7 and the inner peripheral surface of the outer sleeve 7, and the outer sleeve 7 is rotatably supported by the inner sleeve 5 only through a combination bearing 6. The outer sleeve 7 is composed of a first sleeve 7a made of copper and a second sleeve 7b made of magnetic stainless steel. In order to prevent the lateral runout of the tape roll 3, both the inner and outer sleeves 5 and 7 are ground and precisely finished. The magnetic force clutch 8 is composed of steel blocks 8b fixed at regular intervals along the outer peripheral surface of the inner sleeve 5 and a permanent magnet 8a fixed to the outer surface thereof, and the permanent magnet 8a is magnetically attracted by the eddy current effect. The outer sleeve 7 is rotated together. Reference numeral 9 is a ring made of a coil spring that holds and holds the hub 2.

In FIG. 5, the tape supply mechanism includes a first arm 12 fixed to a mounting frame 11 of an elevating mechanism, a second arm 13 supported by the first arm 12 so as to be vertically swingable, and both arms 12 and 13. A tension coil type ridge 15 that is hung between the upper brackets 14 and 14, a double-acting air cylinder 16 that is placed between both brackets 14 and 14, and a front end that is placed on one side of the second arm 13. The roller 17, the straightening roller 18, the touch roller 19 and the like are used.

In FIG. 7, the second arm 13 is supported by the first arm 12 via a cross roller bearing 21. This is for avoiding lateral vibration of the rollers 17, 18 and 19 at the tip of the second arm 13 and minute lateral movement of the arm itself. A spring 15 is provided to offset the total weight acting on the second arm 13, and the touch roller 19 contacts the outer circumference of the tape roll with a relentless contact pressure by allowing only a slight swing of the second arm 13. An air cylinder 16 is provided in order to apply the pressing force. At the time of full winding, the air cylinder 16 is retracted and operated to retract the second arm 13 to the side away from the tape roll 3.

The front roller 17 of the three rollers 17, 18, and 19 is composed of a pair of parallel rollers with a flange, and is rotatably supported by the second arm 13 via a bearing. As shown in FIGS. 1 and 2, the straightening roller 18 and the touch roller 19 are rotatably supported by a roller arm 22 via a bearing, and the roller arm 22 is supported by the second arm 13 with a bearing. It is pivotally supported via the left and right. In order to tilt the roller arm 22 and change the position of the correction roller 18, a single-acting air cylinder (actuator) 24 is attached to the bracket 23 at the tip of the second arm 13, and the outer surface of the bracket 23 is further attached. A stopper 25 is provided which defines the tilt limit of the roller arm 22.

Like the front roller 17, the straightening roller 18 is also formed as a flanged roller having a pair of parallel flanges 18a, but the roller peripheral surface 18b is crowned as shown in FIG. There is. When the roller peripheral surface 18b is inflated in this way, even if the center of the tape 1 deviates slightly from the center of the roller peripheral surface 18b in the width direction, a moment in a direction in which both centers coincide with each other acts on the tape 1. It is possible for the tape 1 to correct lateral deviation by itself without needing to be corrected by the collar 18a. As will be described later, the brim 18a is provided mainly for controlling the lateral shake of the tape roll 3.

In FIG. 5, the lifting mechanism includes a pair of linear guide blocks 28 fixed to the frame 27 in a vertical posture, a pair of movable blocks 29 vertically guided by the guide blocks 28, and movable blocks 29. The feed screw shaft 30 is rotatably connected to the feed screw shaft 30, a servomotor 31, and a lifting force transmission mechanism 32 for transmitting the rotational force of the motor 31 to the feed screw shaft 30. The lifting force transmission mechanism 32 has a worm wheel 33 having a screw hole that meshes with the feed screw shaft 30, and a worm shaft 34 that rotationally drives the worm wheel 33, and connects the worm shaft 34 to the output shaft of the motor 31. . The worm wheel 33 is rotatably supported by a bearing 35 fixed to the frame 27. When the worm wheel 33 is rotationally driven by the motor 31, the feed screw shaft 30 moves up or down, and accordingly, the mounting frame 11 fixed between the movable blocks 29 moves in parallel in the same direction.

FIG. 8 shows a control device 36 for controlling the operating state of the motor 31. There, a roll diameter sensor 37 for detecting a change in the winding diameter of the tape roll 3 is provided outside the peripheral surface of the tape roll 3, and the control device 36 controls the motor 31 based on the output signal of the sensor 37. The roll diameter sensor 37 is composed of a rotary potentiometer, and its output signal is taken into the control device 36 via an amplifier 38.

Next, the operating state of each mechanism will be described. As shown in FIG. 6, the hub 2 is wider than the width of the tape 1 (tape roll 3). Therefore, when the touch roller 19 is circumscribed on the peripheral surface of the hub 2 at the start of winding the tape 1, the peripheral edge of the collar portion of the correction roller 18 is circumscribed on the peripheral surface of the hub 2. In order to avoid such a situation and to circumscribe only the touch roller 19 on the peripheral surface of the hub 2, the air cylinder 24 is operated as shown in FIG. 2, and the tip of the piston rod is pressed against the upper front end of the roller arm 22. , The entire roller arm 22 is tilted counterclockwise to position the correction roller 18 at the avoidance position. In this state, the flange peripheral edge of the straightening roller 18 and the peripheral surface of the hub 2 face each other with a small gap E of about 0.5 mm. The tilting limit of the roller arm 22 is defined by the stopper 25, and the operating force of the air cylinder 24 does not act on the touch roller 19.

As the winding diameter of the tape roll 3 increases, the entire tape supply mechanism is lifted by the lifting mechanism. When the roll diameter reaches a certain value, the operation of the air cylinder 24 is stopped. Since only the touch roller 19 is in contact with the tape roll 3 at this time, the roller arm 22 tilts by receiving a clockwise moment, and switches the correction roller 18 to the operating position as shown in FIG. The roller arm 22 is received by the retracted piston rod and cannot be further tilted. In this state, the roller peripheral surface 18b of the straightening roller 18 is separated from the peripheral surface of the tape roll 3, and the flange 18a faces the peripheral side surface of the tape roll 3 with a minute gap. The overlapping dimension D with the winding side surface of the collar 18a was set to about 2 mm.

After that, while maintaining the above state, the tape feeding mechanism is moved up by the elevating mechanism according to the increase of the roll winding diameter. During the winding, the tension of the tape 1 may fluctuate due to the rotational runout of the tape roll 3 or the fluctuation of the tape supply source side. The second arm 13 whose weight has been offset by this fluctuation in tension tends to swing up and down. For example, when the tension decreases, the biasing force of the spring 15 increases accordingly, so that the second arm 13 swings upward to compensate for the decrease in the winding force of the tape 1. When the tension increases, the second arm 13 conversely swings downward to prevent the winding force from increasing.

However, if the second arm 13 swings up and down excessively, it becomes rather difficult to make the winding force uniform. Therefore, the response operation of the second arm 13 is suppressed by the double-acting air cylinder 16. The air cylinder 16 uses air as a working medium, and allows a slight displacement of the piston rod, but after that, it quickly returns to a state where the pressure is balanced, so that excessive swing of the second arm 13 can be prevented. The time required for convergence is also short.

As described above, the straightening roll 18 moves upward while maintaining the state in which the brim 18a faces the peripheral side surface of the tape roll 3 with a minute gap therebetween. Therefore, even if the tape roll 3 laterally shakes, the peripheral side surface of the tape roll 3 can be received in face contact with the flange 18a, so that the peripheral edge of the tape roll 3 can be prevented from being damaged. In addition to ensuring the elimination of air on the crown-shaped tape peripheral surface 18b, even when the roll diameter becomes large, winding slip does not occur due to side slip of the outermost tape layer, The flatness of the winding side surface when winding up can be improved. The flatness of the tape roll 3 wound by the tape winding device of the present invention, when evaluated by the surface roughness, was able to reduce the maximum height roughness (Rmax) to 5 μm, and the waviness was almost eliminated. However, at the start of winding the tape 1, since the straightening action of the brim 18a of the straightening roller 18 cannot be obtained, the swell occurs only at the winding start end and can be ignored thereafter. The maximum width of the waviness was 10 μm.

As a control method of the motor 31, a thickness sensor for detecting the tape thickness and a feed amount sensor for detecting the feed amount of the tape 1 are provided in the transfer path of the tape 1 in addition to the above embodiment. Alternatively, the output signals from these sensors may be calculated by a calculator, and the motor may be controlled by the controller based on the calculation result.

As the actuator 24 for operating the roller arm 22, a solenoid, an operating mechanism using a motor as a power source, or the like can be applied. The spring 15 can be changed to a compression coil type spring.

[Brief description of drawings]

FIG. 1 is a front view showing a main part of a tape supply mechanism.

FIG. 2 is a front view showing a main part of a tape supply mechanism at the start of tape winding.

FIG. 3 is a vertical cross-sectional side view showing a relationship between a straightening roller and a tape roll.

FIG. 4 is a vertical sectional side view showing a relationship between a straightening roller and a hub.

FIG. 5 is an overall front view.

FIG. 6 is a vertical sectional side view showing the structure of a hub holder.

FIG. 7 is a vertical sectional side view showing a connection structure of a first arm and a second arm.

FIG. 8 is a conceptual diagram illustrating a motor control method.

[Explanation of symbols]

 1 Tape 2 Hub 3 Tape Roll 4 Drive Shaft 11 Mounting Frame 12 First Arm 13 Second Arm 15 Spring 16 Air Cylinder 17 Front Roller 18 Straightening Roller 18a Collar 18b Roller Circumferential Surface 19 Touch Roller 22 Roller Arm 24 Actuator

Claims (6)

[Scope of utility model registration request] 1. A drive mechanism that rotationally drives a flangeless hub 2, a tape supply mechanism that guides the tape 1 fed from a tape supply source toward the periphery of the hub 2, and a tape that is wound around the hub 2. The tape feeding mechanism includes a lifting mechanism that moves the tape feeding mechanism in parallel according to a change in the winding diameter of the tape roll 3. The tape feeding mechanism includes a first arm 12 fixed to a mounting frame 11 of the lifting mechanism, A second arm 13 supported by one arm 12 so as to be swingable up and down, and a spring 1 disposed between both arms 12 and 13 to cancel the weight of the second arm 13 side.
5 and an air cylinder 16 that suppresses the swinging motion of the second arm 13, and a roller pair provided at the tip of the second arm 13. The roller pair is rotatably supported by the second arm 13. The pre-positioning roller 17 and the straightening roller 18 that guides the tape 1 passing through the pre-positioning roller 17 toward the peripheral surface of the hub 2 or the tape roll 3 are circumscribed on the peripheral surface of the hub 2 or the tape roll 3. The correction roller 18 includes a touch roller 19, and the correction roller 18 has a roller peripheral surface 18b having a middle bulge shape.
The straightening roller 18 and the touch roller 19 are rotatably supported by a roller arm 22 that is swingably supported at the tip of the second arm 13, respectively. The tape winding device is provided with an actuator 24 for swinging the roller arm 22 to change the position of the correction roller 18 between the second arm 13 and the roller arm 22. 2. A swing center axis of the roller arm 22 is provided on a vertical line passing through the center of the drive shaft 4. The roller arm 22 is an actuator 24 formed of an air cylinder, and the periphery of the collar portion of the straightening roller 18 is a hub. 2 and the avoidance position away from the peripheral surface via the small clearance E, and the correction roller 18
Roller peripheral surface 18b of the tape roll 3 faces the peripheral surface of the tape roll 3,
The tape winding device according to claim 1, wherein the flange 18a of the straightening roller is configured to be switchable between an operating position facing the peripheral side surface of the tape roll 3 with a minute gap therebetween. 3. The tape winding device according to claim 1, wherein the second arm 13 is swingably supported on the first arm 12 via a cross roller bearing 21. 4. A hub 2 is removably mounted on a hub holder fixed to a drive shaft 4. The hub holder includes an inner sleeve 5 fixed to the drive shaft 4 and a combination bearing 6 externally fitted and fixed to the inner sleeve 5. ,
The bearing 6 has an outer sleeve 7 fitted onto the bearing 6, and a magnetic clutch 8 arranged between the outer peripheral surface of the inner sleeve 5 and the inner peripheral surface of the outer sleeve 7. 4. The tape winding device according to claim 1, wherein the tape winding device is rotatably supported only through the combination bearing 6. 5. The lifting mechanism has a pair of linear guide blocks 28 fixed to the frame 27 in a vertical posture, a pair of movable blocks 29 vertically reciprocally guided by the guide blocks 28, and one end of which is connected to the movable block 29. And a lifting force transmission mechanism 32 for moving the rotation power of the motor 31 to the feed screw shaft 30 to move the feed screw shaft 30 up and down, and between the pair of movable blocks 29, 29. The mounting frame 11 for supporting the tape supply mechanism is fixed.
Or the tape winding device described in 4. 6. A roll diameter sensor 37 for detecting a change in winding diameter of the tape roll 3 is provided outside the peripheral surface of the tape roll 3, and the control device 36 rolls the operation state of the motor 31 of the lifting mechanism. The tape winding device according to claim 5, wherein the tape winding device is configured to be controlled based on an output signal of the diameter sensor 37.