JP2000016701A - Core wire feeding device for forming belt - Google Patents

Abstract

PROBLEM TO BE SOLVED: To maintain a core wire feeding tension constant in a core wire feeding process without a change with time, easily replace a bobbin without a turn failure, reduce the number of processes, and control a tension applied to the core wire while feeding the core wire. SOLUTION: A core wire feeding device for forming a belt 1, wherein a core wire 15 is pulled out from a bobbin 17 around which the core wire 15 is wound, is provided with an arm 5 for pulling out the core wire by swinging around the periphery of the bobbin 17 fixed by a tensile force of the core wire 15. A transmission member 16 transmits the swing of the arm 5 to a restriction device 3, and the restriction device 3 transmits a constant torque to a rotation shaft 23 of the arm 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for feeding a core wire for forming a belt, and more particularly to an apparatus for feeding a core wire for forming a belt from a bobbin around which the core wire is wound with a constant tension.

[0002]

2. Description of the Related Art Conventionally, a belt forming core feeding device for feeding a core for forming a belt wound around a bobbin into a spinning process of spirally winding a core around a belt forming die is shown in FIG. The bobbin 17 is fixed and integrated with the rotating shaft 47, and the belt 38 and the pulley 4 are
4, the rotational force of the rotary shaft 47 supported by the bearing 49 is controlled. As a result, the torque applied to the rotating shaft 47 is constant, and therefore the torque applied to the bobbin 17 integrated with the rotating shaft 47 is also constant.
The tension applied to the core wire 15 was different.

In order to keep the tension applied to the core wire constant, a belt forming core wire feeding device using deconveying has been used as shown in FIG. In the figure, a deconveying 50 is a ring-shaped member 52 mounted on the bobbin 17 coaxially and rotatably with the bobbin 17.
And a brake device 54 provided on a shaft portion of the ring-shaped member 52 to brake the rotational movement of the ring-shaped member 52.
The entire device rotates on the outer periphery of the bobbin 17 while applying a brake in accordance with the feeding of the core wire, and applies tension to the core wire 15. The rotational torque of this device keeps the tension constant by the frictional force of the brake device 54.

FIG. 6 shows a conventional filament delivery device disclosed in Japanese Patent Application Laid-Open No. 6-7841. JP-A-6-784
In Japanese Patent Publication No. 1 (1993), the base 60 provided coaxially on the upper part of the bobbin 17, the rotating ring 62 provided rotatably on the base 60, and the torque of the rotating ring 62 fixed to the base 60 using the lines of magnetic force. And a holding tool 56 provided at the tip of the arm 5 protruding and attached to the outside of the rotating ring 62 for detachably holding and sending out the striated body 64. It is described that the ring 62, the arm 5, and the holder 56 are formed of lightweight members such as aluminum and plastic.

[0005] According to the above configuration, since the torque control is performed by using the perm torque device, the tension applied to the striated body can be controlled without changing over time, and the rotating ring, the arm and the holding member can be controlled. The rotating parts such as tools are made of lightweight material such as aluminum and plastic, so the inertia force of the arm is reduced, preventing unnecessary rotation at the time of turn, and holding the core wire detachably and sending it out Since the tool is used, the core wire is not caught by the striatum delivery device at the time of turning, and a turn mistake can be prevented.

[0006]

By the way, in the case of the conventional example shown in FIG. 5, since the deconveying 50 uses the frictional force of a felt or the like, the felt changes over time and the felt is cut or reduced. Therefore, it is difficult to keep the friction force constant. Further, when the bobbin 17 is replaced (at the time of turn), a catch mistake (when all the core wires of a certain bobbin are sent out and the next bobbin is sent out, the kink is not properly caught by the core wire 15 in the striated body feeding device and a kink is generated. Occurs frequently).

In the case of the prior art shown in FIG.
Since the device for controlling the tension of 4 is the perm torque 58, which is connected to the upper part of the bobbin, if the setting of the perm torque 58 is attempted to be changed while the striatum delivery device is operating, the line To get stuck on the strip 64
The setting of the mat torque 58 cannot be changed, and the tension applied to the filament 64 cannot be changed during operation of the filament delivery device. Therefore, when the core 15 is supplied to the spinning device 46 as shown in FIG. 3 using this device, if the tension of the set core is different from the tension applied to the actual core, the core 39 is There is a great problem that the desired tension cannot be set while winding the wire 15, that is, feedback control cannot be performed.

Further, since the perm torque 58 is connected on the bobbin 17, it is necessary to detach the perm torque 58 when replacing the bobbin 17, and to use the perm torque 58 having a large capacity when replacing the bobbin 17. The torque itself becomes heavy, and replacement requires a great deal of labor and man-hours. In addition, when a large-capacity permanent magnet is connected to the upper part of the bobbin as described above, the position of the center of gravity rises, the balance is deteriorated, and vibration is apt to occur.

Therefore, an object of the present invention is to solve the above-mentioned problems, to keep the feeding tension of the core wire constant without changing over time in the feeding process of the core wire, to make no turn mistakes and to easily replace the bobbin, It is an object of the present invention to provide a belt forming cord feeding device which requires no man-hours and can control the tension applied to the cord while feeding the cord.

[0010]

Means for Solving the Problems In order to achieve the object,
Claim 1 is a belt-forming core wire feeding device for drawing the core wire from a bobbin around which the core wire is wound, comprising an arm for pulling the core wire while rotating around the bobbin fixed by the tensile force of the core wire. A belt forming core feeding device, wherein the rotation of the arm is transmitted to a braking device by a transmission member, and the braking device transmits a constant torque to a rotation shaft of the arm. According to the first aspect, the rotation of the arm is transmitted to the braking device by the transmission member, and a constant torque is transmitted to the rotation shaft of the arm by the braking device. The tension for drawing the working core wire is constant.

According to a second aspect of the present invention, the braking device is provided on the side opposite to the wire outlet, and the output shaft of the braking device is installed orthogonal to the rotation axis of the arm. It was done. According to the second aspect of the present invention, since the braking device is provided on the side opposite to the outlet of the core wire, even when it is necessary to adjust the setting change of the torque such as the perm torque on the scale on the brake body. The torque can be changed without contacting the arm and the cord. Further, since the braking device is located on the opposite side of the outlet for taking out the cord, it is not necessary to move the braking device every time the bobbin is replaced, and the bobbin can be easily replaced. Furthermore, since the output shaft of the braking device is installed orthogonal to the rotation shaft of the arm, the above-described core forming device for forming a belt can be made more compact.

According to a third aspect of the present invention, there is provided a cord feeding device, wherein the braking device is one selected from a perma torque, a powder brake, and a hysteresis brake. According to the third aspect, the braking device is one selected from a perm torque, a powder brake, and a hysteresis brake, so that the braking device is suitable for continuous slip use and can maintain a constant torque.

According to a fourth aspect of the present invention, there is provided a belt forming cord feeding device in which the transmission member comprises a pair of meshed gears or a pair of toothed pulleys on which a toothed belt is stretched. According to the fourth aspect, since the transmission member is a pair of meshed gears or a pair of toothed pulleys with a toothed belt stretched over, the transmission member does not slip and applies torque from the braking device to the arm. It can be transmitted to the rotation axis.

According to a fifth aspect of the present invention, there is provided a belt forming cord feeding device in which the braking device and the arm are provided below the bobbin. The provision of the braking device and the arm below the bobbin lowers the center of gravity of the entire device, thereby stabilizing the device and making it difficult for vibration to occur.

According to a sixth aspect of the present invention, there is provided a belt forming core wire feeding device, wherein the arm is provided with a guide including at least one or more rotating bodies mounted so as to prevent the core wire from falling off. According to the sixth aspect, since the arm is provided with the guide including at least one rotating body, the core wire can be pulled out from the bobbin without falling off without adding resistance by the guide to the core wire. .

According to a seventh aspect of the present invention, the guide comprises at least one pulley and a core wire fall prevention roller,
The pulley is provided with a belt forming cord feeding device in which a groove through which a cord is passed is formed. According to the present invention, the guide comprises at least one pulley and a core drop prevention roller, and the pulley is provided with a groove for passing the core, so that the core falls off. It can be sent out with stable tension without any trouble.

[0017]

Embodiments of the present invention will be described below. FIG. 1 is a conceptual view of an embodiment of the belt forming cord feeding device of the present invention, and FIG. 2 is a sectional view thereof. In FIG. 1, a belt forming cord feeding device 1 includes aramid fibers, glass fibers, polyester fibers, nylon fibers, and the like as belt forming cords 15 used for a toothed belt, a V belt, a V-ribbed belt, a flat belt, and the like. A belt forming cord feeding device 1 for pulling out a cord 15 from a bobbin 17 on which one kind of steel or stainless steel is wound, and rotates around the bobbin 17 fixed by the tensile force of the cord 15. An arm 5 for pulling out the core wire 15 while transmitting the rotation of the arm 5 to the braking device 3 by a transmission member 14;
Thus, a constant torque is transmitted to the rotation shaft 23 of the arm 5.

The arm 5 is attached to the rotation shaft 23. The arm 5 may be fixed to the rotating shaft 23 or may be formed integrally with the rotating shaft 23. Further, the arm 5 is attached substantially vertically to the rotating shaft 23,
Its length is longer than at least the radius of the flange 19 of the bobbin. Further, it is more preferable that the arm 5 is formed in a V-shape and the end of the arm 5 is set at a position substantially at the center of the bobbin 17 in the longitudinal direction, since there is no danger that the core wire 15 will contact the flange 19 of the bobbin.

The rotating shaft 23 of the arm 5 has a bearing 35
Therefore, the arm 5 attached to the rotating shaft 23 is also rotatable. Since the rotation shaft 23 is rotatable as described above, FIG.
When the spinning machine 46 is operated and the core 39 is wound around the die 39 while the die 39 is rotating, the core 1
The arm 5 freely rotates in accordance with the speed at which the 5 winds around the mold, and rotates around the bobbin 17. Then, the arm 5 pulls out the core wire 15 while rotating around the bobbin 17.

The bobbin 17 may be either integral with or separated from the rotary shaft 23 of the arm, but is at least stopped without rotating. The bobbin 17 can be stopped by being suspended while being separated from the rotation shaft 23 of the arm. In the embodiment, the bobbin 17 is used by using the bobbin mounting plate 25, the bobbin support shaft 40, and the bobbin support base 29. The pin 27 is fixed to the bobbin mounting plate 25. The bobbin mounting plate 25 and the bobbin support shaft 4
The rotary shaft 23 to which the arm 5 is mounted is mounted on the bobbin support shaft 40 via a bearing 35.

The braking device 3 includes the spinning machine 46 described above.
Above, the arm 5 rotating according to the rotation speed of the mold 39
Has a function of exerting an action of applying tension to the core wire 15 by braking the core wire 15. The braking device 3 of the embodiment is a drive-side toothed pulley 21 as a transmission member 14 which is attached to the rotation shaft 23 of the arm and rotates synchronously with the rotation shaft 23.
The rotation of the rotating shaft 23 is transmitted by the driven toothed pulley 9, which is wound around the toothed belt 38, the gear 6 connected to the shaft 10 of the driven toothed pulley 9, and the gear 7 meshed with the gear 6. ing. Although there is no particular problem if the driven toothed pulley 9 and the braking device 3 are directly connected and installed, it is more preferable to install the driven device in a direction perpendicular to the longitudinal direction of the bobbin 17 because the device itself becomes compact. In the embodiment, the toothed belt 38 and the shaft 1 of the driven-side toothed pulley 9 which are stretched between the driving-side toothed pulley 21 and the driven-side toothed pulley 9 attached to the boss 23.
The output shaft 12 of the braking device 3 is connected to a bevel gear 6 attached to the bevel gear 0 and a bevel gear 7 meshing with the bevel gear 6.

The gears 6 and 7 used here are a shaft 10 of the driven toothed pulley 9 and an output shaft 12 of the braking device 3.
Any gear can be used as long as the gears can mesh with each other at right angles, and a worm gear, a bevel gear, a screw gear, and a hypoid gear can be used, but are not limited thereto. The braking device 3 is supported by a support plate 36.

As the braking device 3, an air gap type or friction type brake is used, and the air gap type is a powder type that transmits torque through magnetic powder (powder) in the air gap.
There is a hysteresis type in which torque is transmitted via magnetism in a completely non-contact manner. A powder brake uses a powder brake, and a hysteresis type uses a permanent torque or a hysteresis brake. As the friction type brake, a band brake or a disc brake can be used, but it is preferable to use a gap type for use in continuous slip. In the present invention, a perma torque or a powder brake is mainly used as the braking device 3.

As the braking device 3 of the embodiment, a permanent torque is used, and the braking device 3 is interlocked with the boss 23 via the gears 6 and 7, the driven toothed pulley 9, the toothed belt 38, and the driving toothed pulley 21. And the rotation of the arm 5 is braked. The permanent torque is, for example, a plurality of sector-shaped permanent magnets,
A pair of permanent magnet plates formed by disposing N-poles and S-poles alternately and in a disk shape; and a disk-shaped hysteresis plate coaxially disposed between the permanent magnet plates. When either the magnet plate or the hysteresis plate is fixed and the other is rotated, when a pair of permanent magnet plates are arranged so that the same poles face each other, they can rotate with low torque, so that different poles face each other. When it is arranged, it can rotate with high torque. By using this permanent torque, a constant tension can be applied when the core wire 15 is sent out.

The powder brake is mainly composed of a stationary portion and a rotating portion, which are roughly divided into a stationary portion and a rotating portion. The stationary portion is constituted by an electromagnet portion having a built-in coil, and the rotating portion is constituted by a driving side cylinder and a driven side rotor. You. Magnetic powder, so-called powder, is inserted into the gap between the cylinder and the rotor. In operation, when the coil is energized and excited, the magnetic flux generated causes the powder to be connected in a chain along the magnetic path and solidifies, and the coupling force connects the rotor and cylinder, and a braking force acts on the rotor. . By using the powder brake, a constant tension can be applied when the core wire 15 is sent out. When a powder brake is used as the braking device 3, the axis of the braking device 3 needs to be used horizontally so that the powder is not affected by gravity. Therefore, it is necessary to install the powder brake perpendicular to the rotating shaft 9.

The guide 14 is mounted on the arm 5 so as to prevent the core wire 15 from falling off. The guide 14 is attached to at least the tip of the arm 5 and connects the pulley 11 with a groove for passing the core wire 15 to the core wire. It is provided with a cord detachment preventing device 13 for preventing the presser and the cord from coming off the pulley. The cord detachment preventing device 13 is composed of a spring and a roller, and the roller presses the pulley 11 by the force of the spring to prevent the cord 15 from falling off.

The transmission member 14 connects the boss 23 and the braking device 3, and is used by engaging a pair of gears or a pair of toothed pulleys and a toothed belt stretched between the toothed pulleys. And can be used. Here, a general gear can be used as the gear, and a spur gear, a helical gear, a Yamaba gear, or the like can be used. In this embodiment, a pair of drive-side toothed pulleys 21 and driven-side toothed pulleys 9 and a toothed belt 38 stretched over the pair are used. As the belt, a V-belt, a V-ribbed belt or the like can be considered, but it is preferable to use a toothed belt in order to accurately control the tension of the core wire 15 by the braking device 3 without causing a slip.

In the embodiment, the rotating shaft 23 of the arm and the driving-side toothed pulley 21 are inserted into the shaft hole of the driving-side toothed pulley 21 and the driving-side toothed pulley 21 and the rotating shaft are inserted by a hollow set 31 or the like. 23. And the rotating shaft 2
The torque output from the braking device 3 is transmitted to the bevel gears 7 and 6.
The rotation of the boss 23 is braked through the driven toothed pulley 9, the toothed belt 38, and the driving toothed pulley 21 to apply tension to the core wire 15.

[0029]

As described above, according to the present invention, according to the first aspect, the rotation of the arm is transmitted to the braking device by the transmission member, and a constant torque is transmitted to the rotating shaft of the arm by the braking device. This has the effect that a constant braking force acts on the arm and the tension for drawing out the core wire is constant.

According to the second aspect of the present invention, since the braking device is provided on the side opposite to the outlet from which the cord is taken out, the setting change of the torque such as the perm torque is adjusted by the scale on the main body of the braking device 3. If necessary, the torque can be changed without contacting the arm and the cord. Also, since the braking device is located on the opposite side of the outlet for taking out the core wire, it is not necessary to move the braking device every time the bobbin is replaced, and the bobbin can be easily replaced. Further, since the output shaft of the braking device is installed orthogonal to the rotation shaft of the arm, there is an effect that the above-described core forming device for forming a belt can be made more compact.

According to the third aspect of the present invention, since the braking device is one selected from a perm torque, a powder brake, and a hysteresis brake, the braking device is suitable for continuous slip use and has a constant torque. Can be kept.

According to the fourth aspect of the present invention, the transmission member is a pair of meshed gears or a pair of toothed pulleys with a toothed belt stretched thereon, so that the connecting device can be braked without slipping. There is an effect that torque from the device can be transmitted to the boss.

According to the fifth aspect of the present invention, since the braking device and the arm are provided below the bobbin, the center of gravity of the entire device is lowered, so that the device is stabilized and vibration is hardly generated. .

According to the sixth aspect of the present invention, since the arm is provided with the guide including at least one or more rotating bodies, the resistance by the guide does not fall off without being added to the core wire. The core can be pulled out of the bobbin.

According to the seventh aspect of the present invention, the guide includes at least one pulley and a core wire drop prevention roller, and the pulley is formed with a groove through which the core wire passes. As a result, there is an effect that the core wire is reliably sent out with a stable tension without falling off.

[Brief description of the drawings]

FIG. 1 is a conceptual view of an embodiment of a belt forming cord feeding device of the present invention.

FIG. 2 is a cross-sectional view of an embodiment of a belt forming cord feeding device of the present invention.

FIG. 3 is a conceptual diagram of supplying a core wire to a spinning device by using a conventional belt forming core wire feeding device.

FIG. 4 is an external perspective view of a conventional belt forming cord feeding device.

FIG. 5 is an external perspective view of a conventional striated body feeding device using deconveying.

FIG. 6 is a conceptual diagram of a conventional filament delivery device using a perma torque device.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 belt forming core wire feeding device 3 braking device 5 arm 6 gear 7 gear 9 driven side toothed pulley 11 guide pulley 13 core wire slippage prevention device 14 transmission member 15 core wire 16 guide 17 bobbin 19 flange 21 drive side toothed pulley 23 Rotating shaft 25 Bobbin mounting plate 29 Bobbin support 35 Bearing 39 Mold 46 Spinning machine

Claims (7)

[Claims] 1. A belt forming core wire feeding device for drawing a core wire from a bobbin around which a core wire is wound, comprising: an arm that draws a core wire while rotating around a bobbin fixed by a tensile force of the core wire. And a transmission member for transmitting rotation of the arm to a braking device, and transmitting a constant torque to a rotation shaft of the arm by the braking device. 2. The belt-forming cord feeding device according to claim 1, wherein the braking device is provided on a side opposite to a wire outlet, and an output shaft of the braking device is installed orthogonal to a rotation axis of the arm. . 3. The cord feeding device according to claim 1, wherein the braking device is one selected from a perma torque, a powder brake, and a hysteresis brake. 4. The cord forming device according to claim 1, wherein the transmission member comprises a pair of meshed gears or a pair of toothed pulleys with a toothed belt stretched over the transmission member. 5. The belt forming cord feeding device according to claim 1, wherein the braking device and the arm are provided below the bobbin. 6. The belt forming core wire according to claim 1, wherein the arm includes a guide including at least one or more rotating bodies mounted so as to prevent the core wire from falling off. Delivery device. 7. The guide according to claim 1, wherein the guide comprises at least one pulley and a core wire drop prevention roller, and the pulley is provided with a groove through which the core wire passes. Core forming device for belt forming.