JPS61160457A - Yarn storing and delivery apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention]: q Projection Field J This invention relates to a yarn storage/feeding device, and particularly relates to a haze for yarn storage/feeding, which is used to supply yarn while maintaining a constant tension, for example. .

[Prior Art 1] As is well known, in a loom, a yarn storage/feeding mechanism 1A is used in order to supply yarn while maintaining a constant tension. This type of storage/dispensing device is also used in winders, etc., regardless of the mw of thread supply.

By the way, the conventionally known yarn storage/feeding device is a rotating bobbin drum type so-called rusty! (3avi type)
There is a so-called sulzer type (3ulzer type) with a stationary peg drum. A rust-type yarn storage/feeding device keeps a yarn threading member stationary and rotates a thread winding drum to wind and store a predetermined amount of thread around the outer periphery of the thread winding drum. The loom is Fj!
When VJ is applied, the thread is unwound from the bobbin drum while maintaining a constant tension and is supplied to the loom. At the same time, the bobbin drum rotates to pick up the missing amount of unwound thread. ili light 1
do.

That is, the thread on the bobbin drum is drawn out and simultaneously wound and replenished. On the other hand, in the sluther type yarn storage/feeding system 4A, the thread winding drum is held stationary and the thread wrapping member is rotated to wind the thread a predetermined length of m around the thread winding drum. At the same time as the yarn begins to unwind, the yarn winding member starts to replenish the insufficient amount of yarn.

Next, we will discuss the characteristics and advantages and disadvantages of both.

The rust-type yarn storage/feeding device keeps the bobbin winding drum constantly rotating, so even when the yarn is being fed out intermittently, the yarn is constantly swung around, preventing snarling.It is suitable for highly twisted yarns. However, if the yarn speed exceeds 8001/min,
Since the tension ring is fitted onto a rotating bobbin drum, the fins of the tension ring spread out due to centrifugal force, reducing the tension and eventually resulting in no tension. For this reason, the rust-type yarn is limited to a practically usable yarn speed of 9001/min at most, and cannot be used at higher yarn speeds.

On the other hand, in the through-γ type yarn storage/feeding device, the bobbin drum is stationary, so when the yarn is being fed out intermittently, the yarn hangs down and rests, making it easy for snarls to form. is not suitable. However, the yarn speed is 800
Even when the speed is 1/min or more, the tension ring is stationary, so the tension does not fluctuate.

Further, when the yarn speed is 1.200 m/min or more, the yarn attaching speed becomes too high and the yarn is likely to break, which is dangerous.

Therefore, the rust type is suitable for yarn speeds as low as 8001/min or less, while the throughza type is suitable for high yarn speeds of 800+e or more.However, in any case, the yarn speed is 1.
There was a drawback that it could not be applied to high-speed feeding of 2001/min or higher.

Therefore, the applicant of the present application has solved the above-mentioned drawbacks of both, and has developed a yarn storage/feeding RA which can perform high-speed feeding. e
Mv4 [No. 57-172914 (Ijfl [59-64
No. 473) Smell r J! i! I was worried. Briefly explaining the invention related to this earlier application, the bobbin winding member is rotatably provided, the bobbin drum is rotatably supported, and the bobbin drum is rotationally driven in a direction opposite to the rotational direction of the bobbin winding member. By doing this, if the rotational speeds of the thread winding member and the thread winding drum are each set to the stable maximum speed, the speed of the thread wound around the outer periphery of the thread drum will be the sum of the two, so 80C)s/9+1.200m/min. -2,000
This makes it possible to significantly increase the winding speed.

[Problems to be Solved by the Invention] As mentioned above, the yarn storage/dispensing device proposed by the applicant takes advantage of the advantages of the rust-type and through-the-type types, and also overcomes the disadvantages of both, thereby increasing the speed of the system. Although it is a drawing-like outfit that can be drawn out, there is room for improvement as explained below Ix. In other words, the thread storage and
The feeding device rotates the bobbin winding member by inserting the bobbin winding member through the main shaft rotated by the motor, and rotatably supports the bobbin drum at the tip of the main shaft. to convert the direction in the opposite direction to the peg drum (
Chemical 1! By this, the thread winding drum is rotated in the opposite direction to the thread winding member.

Therefore, it is necessary to provide a reverse rotation transmission mechanism inside the bobbin drum (there are problems in that the structure becomes complicated and the heavy use causes rotational vibration). It is necessary to keep it stationary against the rotation of the thread, but this reverse transmission bridge is interfered with by the rotation of the bobbin winding member and cannot be mechanically fixed to any fixed part, so the rotation of the bobbin drum is stopped. When stopping the rotation of the motor, the inertia caused by the rotation of the bobbin drum sometimes caused the reverse rotation transmission mechanism to rotate undesirably.Therefore, the reverse transmission mechanism was fixed to both the reverse rotation transmission mechanism and the fixed part facing it. Attempts have been made to install a magnet for fixing the wire by magnetic force, but such a structure has the problem of making the groove structure more complicated and resulting in a large bond.

Among these, the main purpose of the present invention is to promote a yarn storage/feeding device that can solve the various problems of the earlier application as described above, which should be improved, and that can utilize the features of the earlier application as they are. It is a public market.

[Means for Solving the Problems] The thread storage/reeling bar according to the present invention includes a thread rib member,
It includes a bobbin drum, a main shaft, and rotational drive means.

The thread stealing member is rotatably supported by the main shaft, and the thread winding drum is integrally supported by the main shaft. Further, a hollow portion is formed inside the main shaft, through which the thread unwound from the thread winding drum is inserted. The rotation drive means rotates the thread winding member and the thread winding drum in opposite directions, and winds the thread around the thread winding drum at a speed corresponding to the sum of the rotational speeds of both members.

[Function] In this invention, the thread is not supplied from one side (it is temporarily stored and then fed out to the other side. In other words, the thread supplied from one side to the thread winding member is not connected to the thread winding member. By rotating the bobbin drum in the opposite direction, the thread is wound around the outer peripheral surface of the bobbin drum from the other side.The thread wound around the bobbin drum is then unwound to one side and fed out through the hollow part of the main shaft to the other side. be done.

[Embodiment] Fig. 1 shows M of a yarn storage/feeding device according to an embodiment of the present invention.
It is a diagram showing a four-structure structure, a part of which is shown in cross section. In the figure, a housing 1 serving as a fixed portion includes a housing main body 1a and a cover 1b.

A main shaft 2 is arranged in the center of the housing 1. This main shaft 2 has a bearing 3a fixedly attached to the housing 1.
~3C, and is rotatable with respect to the housing 1. Further, the main shaft 2 is hollow inside, and a cylindrical yarn feed-out vibrator 4 is installed in this hollow portion. One end 5 of the main phase 2 and the yarn payout pipe 4
protrudes from the cover 18 to the outside. In addition, the main shaft 2
A bobbin drum 7 is fixed near the other end 6 of the thread payout vibrator 4 . A first motor 8 for rotating the main shaft 2 is provided inside the cover 1a. This first motor 8 is a DC motor, and is called a print motor or flat motor.

This motor 8 has an armature 8a formed of a disc-shaped steel plate.
and a yoke 8b. The armature 8a is fixed to the main shaft 2. The joint a8b is fixed to the inner wall of the housing 1, and a bearing 9 is fixed thereto, and the INl bearing 9 pivotally supports the main shaft 3d. In addition, the armature 8a is attached to the yoke 8b.
Field poles (for example, permanent magnets) 8c TFI are mounted at fixed angles (for example, 900 degrees) on the surface facing the field. Further, a brush 8d is brought into contact with the armature 8a from the side thereof.

A rotating cylindrical member 10 is provided on the outer peripheral surface of the main shaft 2 between the bearing 3a and the bobbin drum 7. This rotating cylindrical member 1
Bearings 11a and 11b are fixed on the inner circumferential surface of the shaft 2, and these bearings 11a and 11b are in contact with the outer circumferential surface of the main shaft 2. Therefore, the rotating cylindrical member 10 is rotatable relative to the main body 2. A timing belt 12 is placed over a portion of the outer circumferential surface of the rotating cylindrical member 10 . This timing belt 12 is connected to the second motor (housing 1
The second motor 1
The rotary cylindrical member 1O is configured to be rotated by the drive of the rotary cylindrical member 10. Note that the rotating direction of the rotating cylindrical member 10 is the same as that of the main shaft 2.
are selected in the opposite direction. Further, a thread wrapping member 15 is fixed to another portion of the outer circumferential surface of the rotating cylindrical member 10. Therefore, this thread wrapping member 15 is attached to the rotating cylindrical member 10.
rotates integrally with. This thread wrapping member 15 extends in a direction perpendicular to the main shaft 2, and its tip is bent at a substantially right angle so that the tip is parallel to the main shaft 2. That is, the distal end portion of the thread winding member 15 is formed so that a portion thereof faces the outer peripheral portion of the thread winding drum 7.

A through hole is formed in the bent tip of the thread winding member 15, and the thread is inserted through this hole and guided to the outer circumference of the thread winding drum 7. Note that a ceramic guide 16 is provided in the through hole in order to prevent the thread wrapping member 15 from being worn out. In addition, the rotating cylindrical member 1
0, the fixed position of the thread wrapping member 15 and 18
A balance section vi17 is provided at a position facing 00. This balance member 17 is selected so that its overlapping position is approximately equal to ff1ffi of the bobbin winding member 15, and serves to prevent rotational contact caused by deviation of the center of gravity.

A ring-shaped tension finger 18 is provided on the outer periphery of the bobbin drum 7. The tensioner finger 18 is used to apply appropriate tension to the yarn unwound from the yarn drum 7. Further, the sensor S1 and the sensor S2 are arranged in a horizontal direction (
They are placed a predetermined distance apart. The sensor S1 is a photoelectric sensor for optically detecting that the length of the yarn wound around the bobbin drum 7, that is, the stored yarn, is less than a predetermined length. The sensor S2 is a photoelectric sensor for detecting that a predetermined amount or more of yarn is wound around the thread winding drum 7.

Furthermore, a plate spring friction tensor 20 is provided on a support base 19 fixed to the housing 1. This leaf spring friction tensioner 20 is used to apply a certain tension to the yarn supplied to the yarn winding member 15.

In the above configuration, the yarn 21 supplied from the yarn supply source (not shown) to the yarn storage/feeding device is first given a certain tension by the leaf spring friction tensioner 2o, and then is applied to the yarn winding member 15. The thread is guided to the inclined part 7a of the outer peripheral part of the bobbin drum 7 through the through hole in the tip la. Therefore, the thread 21 is wound around the outer circumference of the thread winding drum 7 in accordance with the rotation of the thread winding member 15. Incidentally, since the thread 21 is first wound around the inclined portion 7a of the outer circumferential surface of the thread winding drum 7, the thread sequentially slides down this inclined portion 7a and pushes out the preceding stored thread forward (toward the left in the figure). Therefore, thread 21
are wound regularly in a row without overlapping. Here, the thread winding drum 7 is rotated by the first motor 8 in a direction opposite to that of the thread winding member 15 . Therefore, thread 21
The speed at which the thread is wound around the outer circumference of the thread drum 7 is the sum of the rotation speed of the thread winding drum 7 and the rotation speed of the thread winding member 15. For example, if the speed at which the yarn is wound by the rotation of the bobbin drum 7 is 8001/min, and the speed at which the yarn is wound by the rotation of the bobbin winding member 15 is 1,200/min, the winding speed of the yarn 21 is 2,000/min. !1. /min, making the thread winding speed much faster than conventional rust-type and sloop-type yarn storage and payout devices. Moreover, since the rotational speed of the bobbin drum 7 and the rotational speed of the bobbin winding member 15 are selected to be below the speed at which the rust type and sloop type are disadvantageous, only the advantages of the rust type and sloop type can be utilized. I can do it. The thread 21 wound around the thread winding drum 7 is attached to the tensicon finger 18.
After applying appropriate tension, the thread is unwound from the thread winding drum 7 and guided to the other throat 6 of the thread reeling vibe 4. Then, the thread 21 passes through the inside of the thread reeling vibe 4 and is guided to the outside from one end of the thread reeling pipe 4. The yarn 21 guided to the outside is supplied to a loom as, for example, a weft.

Next, the beginning of the first month of the above embodiment will be explained. If there is not enough yarn wound around the system 5 drum 7 and stored, the sensor S
There is no output for 2. Therefore, based on the fact that there is no output from the sensor S2, drive current is supplied to the first and second motors 88 and 13, so that the bobbin drum 7 and the bobbin winding member 15 are rotated. Therefore, the yarn 21 is attached to the outer circumferential surface of the bobbin drum 7 at a rate that is in accordance with the rotational speed of the bobbin drum 7 and the rotational speed of the thread attaching member 15. Iζ is attached to the bobbin drum 7
When the thread 21 is detected, the power supply to the first and second motors 8 and 13 is stopped by the output thereof, and the rotation of each motor is stopped.

The system 21 wound around the peg drum 7 is, as described above,
The yarn is supplied to a loom or the like via the tension finger 18 and the yarn supply pipe 4. Therefore, when the thread 21 is pulled by the loom, the amount of the system 21 wound around and stored in the thread dome 7 gradually decreases, and eventually the sensor S2
The system of the part opposite to is drawn out. Then, sensor s2
detects that the thread 21 is running out, and the drive current is supplied to the first and second motors 8I3 and 13 again.

Therefore, the first and second motors 8 and 13 rotate to rotate the main shaft 2 and the bobbin winding member 15 in opposite directions, respectively. This operation causes the output of sensor S2 to be 15? It can be continued until it is completed.

Thereafter, in the same way, when the sensor S2 detects the thread 21, the first and second motors 8 and 13 are stopped, and when the sensor S2 no longer detects the thread 21, the first and second motors 8 and 13 are driven. be done. In this manner, the system is used to intermittently wind a certain amount of yarn around the drum 7 at very short intervals, and to unwind the yarn that has been wound and stored.

In addition, if the thread 21 is suddenly pulled for some reason,
The thread 21 wound around the thread winding drum 7 may run out. In order to prevent such a situation, when the sensor S1 detects that there is no thread 21, the first and second
The motors 8 and 13 are driven at increased rotational speeds.

Next, advantages of the above embodiment will be explained.

First, as mentioned above, it has the advantage of being able to pay out yarn at an extremely high speed compared to the conventional rust-type and sluther-type yarn storage and payout devices, and without the disadvantages associated with higher speeds. .

Next, the above embodiment does not require a reverse transmission mechanism such as the yarn storage/feeding device according to the earlier application proposed by the present applicant, so the structure is extremely simple and the weight can be reduced. Further, by providing the reverse transmission R structure, there is no need to provide a fixing magnet, which is necessary, and the structure can be further simplified and lightened. This advantage arises because, in the above embodiment, the bobbin drum 7 is fixed to the spindle 2 and rotated, and the yarn unwound from the bobbin drum 7 is fed out through the inside of the spindle 2 to the outside. This is because the rotating cylindrical member 10 can be pivotally supported on the outer circumferential surface of the main shaft 2, and the rotational force can now be transmitted to the bobbin wrapping member 15 using the outer circumferential surface of the rotating cylindrical member 10. . On the other hand, in the yarn storage/feeding device proposed by the applicant in the earlier application, the member (system winding member) through which the yarn passes is fixed to the main shaft and rotated, so that the outer periphery of the yarn is rotated. The member through which the thread passes (the thread-wound drum) cannot transmit rotation from the outer periphery due to the thread getting in the way, necessitating reverse transmission II.

Although two motors are used in the above embodiment,
The bobbin drum 7 and the bobbin winding member 1 are operated using one motor.
5 may be rotated.

The structure of such an embodiment is shown in FIG. In the figure,
This embodiment has the same construction as the embodiment shown in FIG. 1 except for the following points, and corresponding parts are given the same reference numerals and their explanations will be omitted. In this example, 1 in FIG.
The motor 8 in No. 1 is omitted.

The bobbin drum 7 is also rotated by a second motor (hereinafter simply referred to as a motor) 13. That is, the motor 13 has its rotating shaft 13a protruding in both left and right directions.
On the other hand, the pulley 14 is fixed to the protruding rotating shaft 13a as described above, and the rotating circle f11 member 10 and therefore the thread wrapping member 15 are rotated by a belt hook. Motor 13
A pulley 22 is attached to the rotating shaft 13a protruding to the other side of the
i! 1st place. A timing belt 23 is placed around this pulley 22. On the other hand, inside the housing 1, there are bearings 24aJ5 and 24b fixed to the cover 1b.
The rotating shaft 25 is rotatably supported by. A pulley 26 is fixed to this rotating shaft 25, and the above-mentioned timing belt 23 is hung thereon. Further, a gear 27 is fixed to the rotating shaft 25. 4! gear 27) meshes with a gear 28 fixed to the main shaft 2.

In the above configuration, when the motor 13 rotates,
Rotation of the rotating shaft 13a is transmitted to the rotating shaft 25 by the timing belt 23. This rotation of the rotating shaft 25 is reversed by the gears 27 and 28 and transmitted to the main shaft 2! be done. Therefore, the main shaft 24 is rotated in the opposite direction to the rotating cylindrical member 10. Note that by appropriately selecting the gear ratio of the gears 27 and 28, the rotational speed of the bobbin drum 7 can be set to a desired value.

In the embodiments shown in FIGS. 1 and 2, the rotating cylindrical member 10 is rotated by a belt, but the rotation may be transmitted by a gear or a combination of a gear and a belt.

Further, in the embodiment shown in FIG. 1, the first motor 8 is directly connected to the main shaft 2, but the rotation may be transmitted by a belt hook or a gear. According to the present invention, the thread winding member and the thread winding drum are reversed to wind and store the thread on the thread winding drum, so that the thread speed can be significantly increased compared to the conventional ripper type or sluther type. The yarn speed can be increased, and the yarn can be reliably fed out at high speed without causing any tension or yarn breakage even when the yarn speed is set to ^ speed.

Further, according to the present invention, there is no need to provide a conventional reverse rotation transmission mechanism inside the bobbin drum, so the structural ms
It is possible to reduce the cost by converting the structure into a small building and a light house.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the structure of a yarn storage and delivery device according to an embodiment of the present invention. FIG. 2 is a diagram illustrating the structure of a yarn storage and delivery device according to another embodiment of the present invention. In the figure, 1 is a housing, 2 is a main shaft, 3a to 3C,
9,1ia, 11bJ5 and 24,1 and b are bearings,
7 is a peg drum, and 8 is a first motor. 10 is a rotating cylindrical member, 12 and 23 are timing belts, 13 is a second motor, 14, 22 and 26 are pulleys, 15 is a thread wrapping member, 21 is a thread, 25 is a rotating shaft, 27
and 28 indicate gears. (2 others) Procedural amendment 1, case presentation Aino, A'l r) ,'(']
Patent application filed on December 28, 1982 (1) 2, Name of invention: Yarn storage/feeding device 3, Amendment 6 Relationship to case Patent applicant address: 2-13-6 Honjo Nishi, Oyodo-ku, Osaka City Name: Kasuga Denki Name: Kasuga Denki Co., Ltd. Representative Kakipoukaarao Tanaka Kai 4j4 4, Agent address: 6 Yachiyo Daiichi Building, 2-3-9 Tenjinbashi, Kita-ku, Osaka, Detailed description of the invention of the subject of the amendment^ In Column 7, the first line of page 20 of the details of the amendment shall be corrected to the following sentence. The rotation may be transmitted by a gear or the like. In addition, in the embodiments shown in FIGS. 1 and 2, a rod-shaped member is used as the thread-wrapping member, but the thread-wrapping member is not limited to the rod-shape, but may also be disc-shaped or conical (shade-shaped). You may also use one. In this case, the balance member becomes unnecessary. that's all

Claims (4)

[Claims] (1) A yarn storage/feeding device for temporarily storing yarn supplied from one side and feeding it out to the other side, comprising: a yarn wrapping member to which the yarn is supplied from the one side; and the yarn winding member. a thread winding drum which is arranged on the one side with respect to the attachment member, and in which the thread is wound from the other side by the rotation of the thread winding member and the rotation of the thread winding member itself, and the thread is unwound to the one side; , a main shaft that rotatably supports the bobbin winding member, integrally supports the bobbin drum, and has a hollow portion formed therein for guiding the yarn unwound from the bobbin drum to the other side; A yarn storage/feeding device, comprising: a rotational drive means for applying rotational force in opposite directions to the yarn winding member and the yarn winding drum, respectively. (2) The rotational drive means includes a first motor directly connected to the main shaft, a second motor, and a rotational force transmission mechanism for transmitting the rotational force of the second motor to the thread wrapping member. A yarn storage/feeding device according to claim 1, comprising: (3) The rotational drive means includes: a first motor; a first rotational force transmission mechanism for transmitting the rotational force of the first motor to the outer peripheral surface of the main shaft; and a second motor; The yarn storage/feeding device according to claim 1, further comprising a second rotational force transmission mechanism for transmitting the rotational force of the second motor to the yarn winding member. (4) The rotational drive means includes one motor, a first rotational force transmission mechanism for transmitting the rotational force of the motor to the outer peripheral surface of the main shaft, and the rotational force of the motor to the thread wrapping member. The yarn storage/feeding device according to claim 1, further comprising a second rotational force transmission mechanism for transmitting the rotational force.