JP2000044124A - Spinning device for belt molding - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the control of tension applied to a core wire without any fluctuation in the tension of the core wire during spinning in the process of spinning the core wire to a belt molding metallic mold. SOLUTION: This spinning device pulls out a core wire from a bobbin 4 where the core wire is wound, provides fixed tension and then wind the core wire on a belt molding metallic mold 14. In this case, the device is provided with an arm 6 for pulling out a core wire 10 by its tension while rotating the same around the bobbin 4, a core wire feeding means 2 having a braking device 8 for braking the rotation of the arm 6 for applying tension to the core wire 10, and a winding means 3 for spinning the core wire 10 fed by the core wire feeding means 2 to the rotating belt molding metallic mold 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for forming a belt, and more particularly to an apparatus for forming a belt in which a bobbin on which a core is wound is given a constant tension to feed the core and spinning is performed on a die.

[0002]

2. Description of the Related Art Conventionally, a belt forming spinning device for winding a core wire from a wound bobbin, applying a certain tension to the core wire, and then winding the core wire around a mold, as shown in FIG. The wire 10 was supplied to the drawing tension device 5 where tension was applied and the core wire was sent to the spinning device. Here, the bobbin 40 is shown in FIG.
And the bobbin 40 is fixed and integrated with the rotating shaft 47, and the torque of the rotating shaft 47 supported by the bearing 49 through the belt 38 and the pulley 44 is controlled by a braking device such as the powder brake 8 as shown in FIG. Was. As a result, the torque applied to the rotating shaft 47 becomes constant, and thus the torque applied to the bobbin 17 integrated with the rotating shaft 47 also becomes constant. The tension applied to the core wire 10 was different.

[0003] In order to keep the tension applied to the core wire constant, a device is used in which the core wire is drawn out by using deconveying and sent to a tension device as shown in FIG. In the figure, a deconveying 50 is a ring-shaped member 52 mounted on the bobbin 40 so as to be coaxial and rotatable with the bobbin 40, and is 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 40 and applies tension to the core 10 while applying a brake in accordance with the feeding of the core. The rotational torque of this device keeps the tension constant by the frictional force of the brake device 54.

FIG. 11 shows a conventional cord feeding device disclosed in Japanese Patent 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 40, the rotating ring 62 provided rotatably on the base 60, and the torque of the rotating ring 62 fixed to the base 60 using 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 6, 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. 10, since the deconveying 50 uses the frictional force of a felt or the like for its rotating torque, the felt changes over time and the felt is cut or reduced. Therefore, it is difficult to keep the friction force constant. Further, when replacing the bobbin 40 (at the time of a turn), a catch error (when all the core wires of a certain bobbin are sent out and the next bobbin is sent out, the kink is not correctly caught by the core wire 10 on the striated body feeding device, and the kink may be formed. Occurs frequently).

In the case of the conventional example shown in FIG. 11, a device for controlling the tension of the filament 64 is a perm torque 58,
Since it is installed in connection with the upper part of the bobbin, if the setting of the perm torque 58 is to be changed during the operation of the filament feeder, it is caught by the filament 64, so that the The setting 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 wire 10 is supplied to the spinning device 3 as shown in FIG. 1 or 2 using this device, when the tension of the set core wire is different from the tension applied to the actual core wire,
There is a great problem that the tension cannot be set to a desired value while the core wire 10 is wound around the belt molding die 14, that is, feedback control cannot be performed.

Further, since the perm torque 58 is connected on the bobbin 40, it is necessary to attach and detach the perm torque 58 when replacing the bobbin 40. 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 spinning apparatus which does not require any man-hour, easily controls the tension applied to the core wire during feeding of the core wire, and does not vary the tension of the core wire during spinning.

[0010]

Means for Solving the Problems In order to achieve the object,
In claim 1, the core wire is pulled out of the wound bobbin,
After giving a certain tension, it is wound around a belt molding die
This is a spinning device for belt forming.
An arm that pulls out while rotating around the bobbin with force
Brake arm rotation to apply tension to
Core feeding means having a braking device, and said core feeding
Belt rotating the core wire sent from the means
Winding means for spinning around the mold
And a spinning apparatus for forming a belt. Claim
According to Item 1, the core wire feeding means includes a core wire having a tension.
An arm that pulls out while rotating around the bobbin with force
Arm, and the rotation of the arm
To transmit a constant torque to the rotation axis of the arm
As a result, a constant braking force works on the arm
The tension for drawing the wire becomes constant, and the core wire is drawn from the bobbin.
Can be tensioned at the same time
Therefore, if the tension is small, apply
Eliminates the need for a tensioning device.

According to a second aspect of the present invention, there is provided a belt forming apparatus for forming a belt on which a predetermined tension is applied from a bobbin around which a core wire is wound, and then the core wire is wound around a mold. An arm which is pulled out while rotating around a bobbin by a pulling force, a core wire sending means having a braking device for braking the rotation of the arm in order to apply tension to the core wire, and a core wire sent from the core wire sending means And a winding means for spinning a core wire adjusted to a predetermined tension on a rotating belt-forming die. According to the second aspect of the present invention, there is provided an arm for pulling out the core wire while rotating around the bobbin by its pulling force, and a core wire feeding means having a braking device for braking the rotation of the arm to apply tension to the core wire. Is provided, spinning can be performed on the belt molding die with a constant tension, and the tension can be controlled in two steps, so that the dispersion of the tension is reduced. Further, by providing a tension device for further applying tension to the core wire sent from the core wire sending means, higher tension can be stably applied to the core wire.

According to a third aspect of the present invention, in the belt forming spinning device, the core wire sending means transmits the rotation of the arm to a braking device by a transmission member, and transmits a constant torque to the rotation shaft of the arm by the braking device. In the device. According to the third aspect, the rotation of the arm is transmitted to the braking device by the transmission member, and the braking device transmits a constant torque to the rotation shaft of the arm, so that a constant braking force is applied to the arm. The tension for drawing the working core wire is constant.

According to a fourth aspect of the present invention, the core wire feeding means includes: a bobbin around which the core wire is wound; a rotary shaft which is fitted along the shaft hole of the bobbin so as to be idle; For forming a belt, the braking device is provided so as to control the torque to be constant and provided on a side opposite to the outlet of the core wire, and the arm for extracting the core wire from the bobbin while interlocking with the rotating shaft. In the spinning device.

According to the fourth aspect of the present invention, since the braking device is provided on the side opposite to the outlet for taking out the cord, 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 arm can be used. And the torque can be changed without contacting the core wire. Further, since the braking device is located on the opposite side of the outlet for the core wire, the braking device is located below the bobbin, and the center of gravity is lowered, so that vibration of the device is less likely to occur. Further, since the braking device is provided on the opposite side from 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. In addition, since the rotation shaft is rotatably fitted along the shaft hole of the bobbin, the rotation can be transmitted to the braking device without transmitting the rotation of the arm to the bobbin.

According to a fifth aspect of the present invention, there is provided a belt forming spinning device in which 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. is there. According to the fifth aspect of the present invention, since the braking device is provided on the side opposite to the outlet of the cord, 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. Further, since the output shaft of the braking device is installed orthogonal to the rotation shaft of the arm, the belt forming spinning device can be made more compact.

According to a sixth aspect of the present invention, there is provided a spinning apparatus for forming a belt, 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, in the belt forming spinning device, 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. According to a seventh aspect of the present invention, the guide comprises at least one pulley and a core wire drop prevention roller, and the pulley is formed with a groove for passing the core wire, so that the core wire does not fall off. Can be sent out with stable tension.

An eighth aspect of the present invention is a tensioning device for applying tension to the core wire by the core wire tension applying means by a pulley through which the core wire passes, a dancer connected to the pulley, and a weight attached to an end of the dancer. In the spinning device for belt forming. According to the eighth aspect, since tension can be applied to the core wire by the weight attached to the end of the dancer, a considerably large tension can be applied to the core wire by making the dancer rigid. .

[0019]

Embodiments of the present invention will be described below. FIGS. 1 to 4 show an embodiment of a belt forming cord feeding device of the present invention. In FIG. 1, a belt forming spinning device 1 includes an aramid fiber, a glass fiber, a polyester fiber, a nylon fiber, and a steel as a belt forming core 15 used for a toothed belt, a V belt, a V-ribbed belt, a flat belt, and the like. From the bobbin 4 around which one of stainless steel is wound.
And an arm 6 for pulling out the core wire 10 while rotating around the bobbin 4 by the pulling force of the core wire 10, and the rotation of the arm 6 is braked by the braking device 8. The cord delivery device 2 and the cords 10 and 12 delivered from the cord delivery device 2
And a wrapping means 3 for spinning a belt-forming die 14 which is rotating the belt-forming die 14.

First, FIG. 1 will be described. FIG.
Is drawn from two bobbins 4 and 4, which are S-twisted and Z-twisted cores, respectively, and each core is alternately spun into a belt molding die. . When a molded product is used as a belt by alternately spinning the S-twisted and Z-twisted core wires,
The belt can run without meandering.

As the embodiment of the core wire feeding means 2, there are a case where the arm 6 is mounted above the bobbin 4 and a case where the arm 6 is mounted below the bobbin 4. In the embodiment of FIG.
This is a case where the arm 6 is attached to the lower side of the bobbin 4, and FIG. In FIG. 5, the arm 6 is attached to the rotating shaft 23. The arm 6 may be fixed to the rotating shaft 23 or may be formed integrally with the rotating shaft 23. In addition, the arm 6 has the rotating shaft 2
3 is mounted substantially perpendicularly, and its length is at least longer than the radius of the flange 19 of the bobbin. Further, it is more preferable that the arm 6 is formed in a V-shape and the tip of the arm 6 is set at a position substantially at the center of the bobbin 4 in the longitudinal direction.

The rotating shaft 23 of the arm 6 has a bearing 71
Therefore, the arm 6 attached to the rotating shaft 23 is also freely rotatable. Since the rotation shaft 23 is rotatable as described above, FIG.
When the winding means 3 is operated and the core wire 10 is wound around the belt forming die 14 while the belt forming die 14 is rotating, the winding speed is adjusted in accordance with the speed at which the core wire 10 is wound around the belt forming die. The arm 6 rotates freely and rotates around the bobbin 4. Then, the arm 6 pulls out the core wire 10 while rotating around the bobbin 4.

The bobbin 4 may be either integral with or separated from the rotating shaft 23 of the arm, but is at least stopped without rotating. The bobbin 4 can be stopped by being suspended while being separated from the rotation shaft 23 of the arm.
5, using the bobbin support shaft 41 and the bobbin support base 29,
The bobbin 4 is fixed to the bobbin mounting plate 25 with a pin or the like.
The bobbin mounting plate 25 is integrated with the bobbin support shaft 41 and the bobbin support base 29. The rotary shaft 23 to which the arm 6 is mounted is mounted on the bobbin support shaft 41 via a bearing 75.

The braking device 8 is mounted on the winding means 3
It has a function of applying a tension to the core wire 10 by braking the arm 6 that is rotating according to the number of rotations of the belt forming die 14. The braking device 8 of the embodiment shown in FIG. 5 is a driven side pulley 21 as a transmission member 18 which is attached to the rotation shaft 23 of the above-mentioned arm and rotates synchronously with the rotation shaft 23 and is driven by a toothed belt 38. The gear 9 connected to the shaft 75 of the toothed pulley 15 and the driven toothed pulley 15 and the gear 7 meshed with the gear 9 constitute a rotating shaft 23.
The rotation of is reported. Although there is no particular problem if the driven toothed pulley 15 and the braking device 8 are directly connected and installed,
It is more preferable to install the bobbin 4 perpendicular to the longitudinal direction because the device itself becomes compact. In the embodiment shown in FIG. 5, the toothed belt 38 stretched between the driving toothed pulley 21 and the driven toothed pulley 15 attached to the boss 23 and the shaft 75 of the driven toothed pulley 15 are attached. The output shaft 73 of the braking device 8 is connected to the bevel gear 9 and the bevel gear 7 meshing with the bevel gear 9.

The gears 9 and 7 used here include the shaft 75 of the driven toothed pulley 15 and the output shaft 7 of the braking device 8.
Any gear can be used as long as the gears can mesh with each other at right angles, and worm gears, bevel gears, screw gears, and hypoid gears can be used, but are not limited thereto. The braking device 8 is supported by a support plate 36.

As the braking device 8, a gap type or friction type brake is used, and the gap type is a powder type which transmits torque through magnetic powder (powder) in the 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 8.

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 9 and 7, the driven toothed pulley 15, the toothed belt 38, and the driving toothed pulley 21. And the rotation of the arm 6 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 10 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 10 is sent out. When a powder brake is used as the braking device 8, the axis of the braking device 8 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 11.

The guide 69 is mounted on the arm 6 so as to prevent the core wire 10 from falling off. The guide 69 is attached to at least the distal end of the arm 6 and connects the pulley 11 provided with a groove for passing the core wire 10 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 includes a spring and a roller, and the roller presses the pulley 11 by the force of the spring, thereby preventing the cord 10 from falling off.

The transmission member 18 connects the boss 23 and the braking device 8, and is used by meshing 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 the embodiment, a pair of the drive-side toothed pulley 21 and the driven-side toothed pulley 15 and the 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 10 by the braking device 8 without causing a slip.

In the embodiment, the rotary shaft 23 of the arm and the drive-side toothed pulley 21 are inserted into the shaft hole of the drive-side toothed pulley 21 and the drive-side toothed pulley 2 is formed by a hollow set or the like.
1 and the rotating shaft 23 are fixed. And the rotating shaft 23
Then, the torque output from the braking device 8 is applied to the bevel gears 7, 9 and the driven-side toothed pulley 15, the toothed belt 38, and the driving-side toothed pulley 21 to apply a brake to the rotation of the rotary shaft 23 to apply tension to the core wire 10. Has the effect of giving.

As shown in FIG. 1, the winding means 3 guides the core wires 10 and 12 sent from the core wire sending means 2 by the guide pulleys 26 and 24 to the belt forming die 14 via the touch roll 16. Spinned. At this time, the touch roll 16 is supported on a support table 31, and the motor 28 and the belt 29 function to relatively rotate the belt forming die 14 on the LM guide 30 as the belt forming die 14 rotates. It moves in the longitudinal and horizontal directions. The number of rotations of the belt-forming mold 14 and the moving speed of the touch roll 16 in the horizontal direction can be appropriately adjusted by the pitch of the core wire wound around the belt-forming mold 14.

In FIG. 2, the winding means 3 is of a vertical type, and the same core wire feeding means 2 as that of FIG. 1 is used. Here, the core wire 10 is SZ
Since a twisted core wire is used, even a single type of core wire does not meander when the formed belt runs. As the winding means 3, the touch pulley 16 passes through the guide pulley 24 from the core wire 10 pulled out from the core wire pullout means 2.
The core wire is spun with a constant tension into the belt molding die 14 while holding the core wire with the touch pulley 16. At this time, the tension applied to the core wire is a tension controlled by the braking device 8 of the core wire pulling means 2, and the core wire can be spun into the belt molding die 14 with a stable tension. The touch pulley 16 is supported by a support base 31. The support base 31 is screwed onto a ball screw 41, and the touch pulley 16 can be moved up and down by the action of a motor 44 and a ball screw 42. The number of rotations of the belt forming die 14 and the moving speed of the touch pulley 16 in the vertical direction can be appropriately adjusted by the pitch of the core wire wound around the belt forming die 14.

FIG. 3 shows a state in which a tension device 5 is inserted between the cord drawing means 2 and the winding means 3 in the belt forming spinning apparatus of FIG. By applying further tension to the wire 10, the present invention is applied to the case where the core wire requiring a high tension is spun into the belt molding die 14 with a stable high tension.

The core wire pulling means 2 and the winding means 3 are the same as those shown in FIG. As the tension device 5, the core 10 sent out from the core lead-out means 2 is used.
Is sent to the pulley 39 through the pulleys 35, 33 and 37. On the pulley 39, tension is applied to the core wire by the action of the dancer 32 connected to the pulley 39 and the weight attached to the tip thereof. Then, the cord 10 having a higher tension is sent to the winding means 3. Dancer 32
When the center wire is wound between the pulleys 37 and 39 and sent to the winding means 3 side, when the weight 41 is attached, the dancer 32 vibrates due to the rotation of the pulley and the weight of the weight 41. From this situation, it was named Danserver 32.

FIG. 4 shows a modification of FIG. 3, in which the tension device 5 and the winding means 3 are the same as in FIG. FIG.
When the core wire drawing means is described in detail, as shown in FIG.
A bobbin 4 around which one of glass fiber, polyester fiber, nylon fiber, steel, and stainless steel is wound; a rotating shaft 45 in which the bobbin 4 is idlely fitted along a shaft hole of the bobbin 4; In conjunction with the rotation shaft 45, the torque of the rotation shaft 45 is controlled to be constant, and the rotation braking device provided on the side opposite to the outlet of the core wire 10 is located outside the rotation shaft 45 and interlocks with the rotation shaft 45. An arm 6 for pulling out the core 10 from the bobbin 4 and a guide 69 including at least one or more rotating bodies attached to the arm 6 so as to prevent the core from falling off.

FIG. 7 is a cross-sectional view of the core wire feeding means shown in FIG. 6, in which the rotary shaft 45 is installed so as to penetrate through the shaft hole of the bobbin 4 and is provided between the rotary shaft 45 and the bobbin fixing shaft 61. A bearing 63 is provided, and the rotating shaft 45 can be idled by a rotating shaft fixing nut 27. At this time, the bobbin 4 is installed while inserting the shaft hole of the bobbin 4 into the bobbin fixing shaft 61 so that the bobbin 4 is guided by the bobbin fixing shaft 61. The bobbin 4 inserted into the bobbin fixing shaft 61 has its shaft hole fixed by the bobbin pressing plate 57, the detent pin 65 and the lock nut 55, and does not rotate.
The bottom of the bobbin fixing shaft 61 is fixed to a frame 67 of the case 23 in which the braking device 8 is built.

Since the rotating shaft 45 is rotatable as described above, the winding means 3 shown in FIG. 4 is operated, and the belt forming die 14 rotates while the belt forming die 14 rotates.
When the core wire 10 is wound around the arm 4, the arm 6 rotates freely in accordance with the speed at which the core wire 10 is wound around the mold.

The braking device 8 is mounted on the winding means 3
By braking the arm 6 rotating in accordance with the number of rotations of the belt molding die 14, the tension is applied to the core wire 10 and the lower portion of the rotary shaft 45 is meshed with a bevel gear or other gear. The axes are set perpendicular to each other by matching. There is no particular problem if the braking device 8 is installed coaxially except when the braking device 8 is a powder brake, but it is more preferable to install the braking device 8 orthogonally to the rotation shaft 45 because the device itself becomes compact. In the embodiment, the bevel gear 9 is connected to the lower end of the rotating shaft 45 via a coupling 46, and the bevel gear 7 is engaged with the bevel gear 9 so as to be orthogonal to the bevel gear 9, and the bevel gear 7 is connected to the bevel gear 7 via a coupling. The output shaft of the braking device 8 is connected. Gears and braking devices 8 used here
The same one as in the embodiment of FIG. 1 can be used.

The arm 6 is mounted substantially perpendicular to the rotating shaft 45, and its length is longer than the radius of the flange 19. Further, it is more preferable that the arm 6 is formed in a U-shape and the end of the arm is set at a position substantially at the center of the bobbin 4 in the longitudinal direction, because there is no danger that the core wire 10 comes into contact with the flange 19.

The guide 69 is attached to the tip of at least one arm 6 and holds the pulley 11 as a rotating body provided with a groove through which the core wire is formed and a core for preventing the core wire from coming off the pulley. It is composed of a line separation prevention device 13. The cord detachment preventing device 13 includes a spring and a roller, and the roller presses the pulley 11 with the force of the spring to prevent the cord 10 from falling off. The pulley 11 is arranged not only at the tip of the arm 6 but also at the midpoint of the arm 6 and at the base of the arm 6, and serves to guide the core wire to the next step.

[0042]

As described above, according to the present invention, according to the first aspect, the core wire feeding means has an arm for pulling out the core wire while rotating the bobbin around the bobbin by its pulling force. By transmitting a constant torque to the rotating shaft of the arm by braking the arm with a braking device, a constant braking force acts on the arm, the tension for drawing the core is constant, and the core is pulled from the bobbin. When the tension is small, a tension device for applying tension to the core wire is not required, and the number of steps can be reduced by one step, and the cost of equipment can be reduced. This has the effect.

According to the second aspect of the present invention, there is provided a core having an arm for pulling out a core wire while rotating around a bobbin by its pulling force and a braking device for braking the rotation of the arm to apply tension to the core wire. The provision of the line feeding means makes it possible to spin the belt molding die with a constant tension. Further, by providing a tension device for further applying tension to the core wire sent from the core wire sending means, a wire having a large diameter which can apply a higher tension to the core wire stably and which requires a high tension. Even when spinning a core wire or the like, there is an effect that it can be wound with sufficient tension. Further, since the tension of the core wire can be controlled in two steps of the core wire feeding means and the tension device, the variation in the tension becomes extremely small.

According to the third 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. There is an effect that the braking force acts and the tension for drawing the core wire is constant.

According to the fourth aspect, since the braking device is provided on the side opposite to the outlet for taking out the cord, even when it is necessary to adjust the setting of the torque such as the perm torque by the scale on the brake body, And the torque can be changed without contacting the core wire. In addition, since the braking device is located on the opposite side from the outlet of the core wire, the braking device is located below the bobbin, so that the center of gravity is lowered and the vibration of the device is less likely to be generated. Further, since the braking device is provided on the opposite side from 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. Also,
The fact that the rotation shaft is rotatably fitted along the shaft hole of the bobbin also has the effect of transmitting the rotation to the braking device without transmitting the rotation of the arm to the bobbin.

According to the fifth aspect of the present invention, since the braking device is provided on the side opposite to the outlet for the cord,
Even when it is necessary to adjust the setting of the torque such as the perm torque with the scale on the brake body, the torque can be changed without contacting the arm and the core wire. Further, 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, so that 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 spinning device for forming a belt can be made more compact.

According to the sixth aspect, since the arm is provided with the guide including at least one rotating body, the core wire is drawn out from the bobbin without falling off without adding the resistance by the guide to the core wire. be able to.

According to a seventh aspect of the present invention, the guide comprises at least one pulley and a core wire drop-preventing roller. There is an effect that it is possible to surely send out with a stable tension without performing.

According to the eighth aspect, since tension can be applied to the core by the weight attached to the end of the dancer, a considerably large tension can be applied to the core by making the dancer rigid. There is an effect that can be.

As an overall effect of the present invention, when spinning a narrow-diameter nylon rope or tetron rope or the like which does not require a large tension of the cord, only the above-mentioned cord feeding means and winding means are used. Can spin on the belt mold with stable tension
This has the effect of making the equipment compact and reducing costs.

When spinning a thick wire rope or aramid fiber rope which requires a large tension,
By installing a tension device between the core wire feeding means and the winding means, the tension can be applied to the core wire while controlling the tension with both the core wire feeding means and the tension device, and a core requiring a high tension can be provided. There is an effect that the wire can be fed and spun by the winding means with a stable tension without variation, and the formed belt can be a belt with high accuracy without variation in length.

[Brief description of the drawings]

FIG. 1 is a schematic view of an embodiment of a spinning apparatus for forming a belt according to the present invention.

FIG. 2 is a schematic view of one embodiment of a spinning apparatus for forming a belt of the present invention.

FIG. 3 is a schematic view of one embodiment of a spinning apparatus for forming a belt of the present invention.

FIG. 4 is a schematic view of one embodiment of a spinning apparatus for forming a belt of the present invention.

FIG. 5 is a schematic view of a core wire feeding means used in FIGS. 1 to 3;

FIG. 6 is a schematic view of a core wire feeding means used in FIG.

FIG. 7 is a sectional view of FIG. 6;

FIG. 8 is a schematic view showing a core wire feeding means and a tension device in a conventional belt forming spinning device.

FIG. 9 is an external perspective view of a conventional cord feeding means used in a conventional belt forming spinning device.

FIG. 10 is an external perspective view of a conventional core feeding means using deconveying in a conventional belt forming spinning apparatus.

FIG. 11 is a schematic view of a conventional core feeding device using a perm torque device in a conventional belt forming spinning device.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 spinning device for belt forming 2 core wire feeding means 3 winding means 4 bobbin 5 tension device 6 arm 7 gear 8 braking device 9 gear 10 core wire 11 guide pulley 12 core wire 13 core wire release prevention tool 14 belt forming die 16 Touch pulley 18 Transmission member 21 Drive pulley 23 Rotary shaft 24 Guide pulley 25 Bobbin mounting plate 28 Motor 29 Belt 30 LM guide 31 Support base 32 Pole screw 33 Pulley 35 Pulley

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Shinji Kotani 4-1-1-21 Hamazoedori, Nagata-ku, Kobe Mitsusei Belt Co., Ltd. (72) Inventor Mitsuru Nomiyama 4-1-1, Hamazodori, Nagata-ku, Kobe-shi Mitsuboshi Belting Co., Ltd. F term (reference) 3F111 AA01 AB01 AB07 AB10 AC00 BB02 BC12

Claims (8)

[Claims] 1. A core wire is pulled out from a bobbin around which the core wire is wound,
A belt forming spinning device that winds a belt forming die after giving a certain tension, and an arm that pulls out a core wire while rotating around a bobbin by its pulling force, and applies tension to the core wire. And a winding means for spinning the core wire fed from the core wire feeding means around the rotating belt forming die. A spinning device for forming a belt. 2. A belt forming device for applying a predetermined tension to a bobbin around which a core wire is wound and then winding the core wire around a bobbin by pulling the core wire around the bobbin by the pulling force. An arm, a core wire feeding means having a braking device for braking the rotation of the arm to apply tension to the core wire, a tension device for further applying tension to the core wire fed from the core wire feeding means, and a predetermined tension And a winding means for spinning the adjusted core wire around the rotating belt forming die. 3. The power transmission device according to claim 1, wherein the transmission means transmits the rotation of the arm to a braking device by a transmission member, and transmits a constant torque to the rotation shaft of the arm by the braking device. Or the spinning apparatus for forming a belt according to 2. 4. The core wire feeding means comprises: a bobbin around which a core wire is wound; a rotary shaft inserted in a bobbin along a shaft hole so as to be able to idle; and a torque of the rotary shaft interlocked with the rotary shaft. 3. A brake device which is controlled to be constant and is provided on a side opposite to an outlet of a core wire, and said arm which draws a core wire from a bobbin while interlocking with a rotating shaft. A spinning device for forming a belt according to item 1. 5. The brake device according to claim 1, wherein the braking device is provided on a side opposite to an outlet of a cord, and an output shaft of the braking device is installed orthogonal to a rotation axis of the arm. Spinning device for belt forming. 6. The belt forming spinning 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. apparatus. 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. Spinning equipment for belt forming. 8. A tension device in which the cord tension applying means applies tension to the cord by means of a pulley passing through the cord, a dancer connected to the pulley, and a weight attached to an end of the dancer. 8. The spinning apparatus for forming a belt according to any one of 2 to 7.