JPH036602Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a yarn winding device for winding yarn after processing such as false twisting. The present invention relates to a bobbin pressing device in a thread winding device for properly mounting the bobbin.

[Prior Art] The present applicant previously proposed Japanese Patent Application No. 1983-227476 (title of the invention: method and device for doffing package in yarn false twisting machine).

This will be explained with reference to FIGS. 10 and 11.

10 and 11 both show side views of the yarn false twister.

A long first heater 2 is located on one side of the work space 1.
is set upright, and a plurality of thread winding devices 3 are provided on the other side. Further, a creel 4 supporting a large number of yarn supply packages P ₁ is arranged at the back of the first heater 2.
A second heater 5 is installed at the back of the yarn winding device 3. A yarn cooling plate 6, a yarn guide device 7, and a false twisting device 8 are arranged in this order above the work space 1, and feed rollers 9, 10, 11 are provided below the first heater 2 and above and below the second heater 5, respectively. will be placed.

The yarn Y pulled out from the yarn supply package P ₁ passes through the first feed roller 9 and inside the first heater 2 from bottom to top, is bent by guide pins 12 and 13, and then diagonally along the yarn cooling plate 6. The yarn travels downward and is further introduced into a false twisting device 8 via a yarn guide device 7 .

The yarn Y leaving the false twisting device 8 is bent downward by the guide pin 14, passes through the second feed roller 10, descends inside the second heater 5, passes through the third feed roller 11 and the yarn guide 15, and then is transferred to the yarn winding device 3. is wound up to form a wound package _P2 .

The yarn winding device 3 is provided with a total of 12 units, 3 stages up and down and 4 rows in the front- _rear direction in the plane of the drawing.
It is composed of a friction roller 17 that rotationally drives _P2 , a yarn guide 18 that guides the yarn Y, and other members. A suction pipe 19 is provided below the yarn winding device 3 and communicates with a blower (not shown).

In the work space 1, in front of the first heater 2,
A flat peg stand 20 is arranged. The stand 20 is configured to be able to run in the front and back direction of the paper in FIG. 10 by having rollers 21 provided on its lower surface slide on rails 22 laid on the ground, and is normally equipped with a stopper (not shown). The thread winding device 3 is fixed at a position facing the thread winding device 3. Further, on the surface of the stand 20 facing the yarn winding device 3,
A total of 12 pegs 23 are planted in three rows vertically and in four rows in the front and back direction of the paper, with equal intervals in the top and bottom and front and back, respectively, and an empty bobbin B is inserted into each peg 23. has been done. Another rail 24 is laid on the ground between the peg stand 20 and the line winding device 3, and the doffing cart 2
5 is run by rollers 26 in the front-rear direction on the paper.

When the winding package P ₂ in the yarn winding device 3 is fully wound, the doffing cart 25 cuts the thread Y and removes the winding package P ₂ from the cradle arm 16, and at the same time removes the bobbin B from the peg stand 20. The bobbin B is removed and the bobbin B is mounted on the cradle arm 16, and the winding package _P2 is mounted on the peg 23.

This will be explained in more detail with reference to FIGS. 10-12.

A guide bar 27 and a screw rod 28 extending in the direction of the yarn winding device 3 and the peg stand 20 are provided on the upper part of the doffing truck 25.
The yarn winding device 3 is fitted into and guided by the screw rod 28, and is threaded into the thread winding device 3 by rotation of the screw rod 28.
A slide frame 29 that reciprocates between the peg stand 20 and the peg stand 20 is provided.

On the other hand, a guide rail 3 is installed at the bottom of the doffing truck 25.
0, a support block 31 that slides back and forth on the guide rail 30 is provided, and a guide rod 32 is connected between the support block 31 and the slide frame 29.

As shown in FIG.
A base 34 of a package support arm 33 that receives P ₂ and a lifting block 36 of a bobbin chucker 35 that holds a bobbin B shown in FIG. 11 are provided to be vertically movable. package support arm 33
The base 34 of the bobbin chuck 35 and the lifting block 36 of the bobbin chuck 35 are screwed together with a vertical screw rod 37 provided on the slide frame 29, so that the bobbin chuck 35 can be raised and lowered by rotation of the screw rod 37.

The package support arm 33 and the bobbin chucker 35 are designed to be able to pivot horizontally with respect to their base 34 and the lifting block 36, and the bobbin chucker 35 is also pivotable in the vertical direction as shown in FIG. It's getting old.

In order to replace the fully wound package P ₂ of the thread winding device 3 with the bobbin B of the peg stand 20 using this doffing cart 25, first the bobbin chucker 35 is equipped with the bobbin B, and then the lifting block 3 is replaced as shown in FIG.
When the bobbin B is held above the first
As shown in FIG. 12, the slide frame 29 moves toward the thread winding device 3, and the receiving portion 38 of the package support arm 33 moves toward the thread winding device 3 as shown in FIG.
package supported by the cradle arm 16 of
Move _P2 so that it is located at the bottom of both ends of bobbin B.

Next, the cradle operating arm 39 engages one arm 16a of the cradle arm 16 and rotates it in the direction shown in the figure to open the fully wound package _P2.
is removed from the bobbin holder 40 of the cradle arm 16 and held by the receiving portion 38 of the package support arm 33 below.

Thereafter, with the package support arm 33 holding the fully wound package P ₂ and retreating to the position shown in FIG. 10, the package support arm 33 moves back to the position shown in FIG. It is pivoted to coincide with peg 23 of 20.

Next, as shown in FIG. 11, the bobbin chucker 35 holding the bobbin B rotates downward, and in this state moves forward toward the cradle arm 16. Then, the bobbin chucker 35 is slightly rotated upward to attach the bobbin holder of the cradle arm 16. Bobbin B between 40
Attach. After mounting, the bobbin chucker 35 is returned to a position on the lifting block 36 shown in FIG.

In this state, the slide frame 29 is moved back toward the peg stand 20 as shown in FIG.
Insert P ₂ into peg 23. At this time, although not shown in the figure, the bobbin chucker 35 is located above the package support arm 33 and on the bobbin Ba inserted into the peg 23a in front of the package support arm 33, and is fully wound by the package support arm 33. After inserting the package P ₂ into the peg 23, the support arm 33 and the bobbin chucker 35 are lowered, so that the support arm 33 is fully loaded with the package P2.
Release P ₂ , and the bobbin chucker 35 removes the bobbin.
Hold Ba. After holding the bobbin Ba, the bobbin chucker 35 is moved to the bobbin chucker _35.The package support arm 33, which has finished mounting the package P2, is returned to the thread winding device 3 side and rotated.
The thread winding device 3 travels to perform the next doffing operation, and the above-described operation is repeated.

In this doffing operation, the package support arm 33 is moved from the cradle arm 16 to its receiving portion 38.
The bobbin end of the fully wound package P ₂ is received, and this is turned horizontally and inserted into the peg 23 of the peg stand 20.

[Problem that the invention attempts to solve] By the way, when bobbin B is
is installed between the bobbin holders 40 of the cradle arm 16, the above-mentioned cradle operating arm 3
At 9, the movable side arm 16a of the cradle arm 16
is opened and the bobbin B is held in the supporting position of the bobbin holder 40 by the bobbin chucker 35, and then the movable arm 16a is closed to hold both ends of the bobbin B.

However, when this bobbin B is held by the bobbin holder 40 of the cradle arm 16, the bobbin holder 0 is held by the closing force of the movable arm 16a due to the spring provided on the movable arm 16a, so there is a problem that the force for fitting the bobbin holder 0 into the bobbin end is weak. There is.

That is, the bobbin B is formed into a cylindrical shape using a paper tube or the like, and the dimensions of both ends are often irregular.
Therefore, it is difficult to reliably fit the bobbin B with the fitting force of the bobbin holder 40 due to the spring force of the movable arm 16a.

The present invention was devised in consideration of the above circumstances, and an object of the present invention is to provide a bobbin pressing device for a thread winding device that can reliably attach an empty bobbin to the cradle arm of the thread winding device. shall be.

[Means and effects for solving the problem] In order to achieve the above object, the present invention provides bobbin holders that support both ends of the bobbin at the tips of two arms facing each other, and also provides a bobbin holder on the movable side of one of the arms. The cradle arm has a cradle arm that can be opened to attach or detach a bobbin, and a roller that engages with the arm to open the movable arm of the cradle arm, and the roller moves the arm in the opening direction to open the arm. In a thread winding device equipped with a freely movable cradle operating arm, a pressing tool is provided on the cradle operating arm to press the movable side arm of the cradle arm, and the cradle operating arm is moved in a direction opposite to the opening direction of the cradle arm. The device is equipped with a driving means for moving the movable side arm of the cradle arm and pressing the movable side arm with a pressing tool. By moving the cradle operating arm and pressing the movable arm in the closing direction with its pressing tool, the bobbin held between the bobbin holders of the arm can be more reliably fitted.

[Embodiment] Hereinafter, a preferred embodiment of the bobbin pressing device in the thread winding device of the present invention will be described based on the accompanying drawings.

First, the structure of the yarn false twisting machine and its doffing truck is as explained in FIGS. 10 to 12.

1 to 9 show a bobbin pressing device in the thread winding device of the present invention.

In Fig. 3, 3 is a thread winding device, and bobbin B
a cradle arm 16 that rotatably holds the
Friction rollers 17 (second, seventh, ninth) for rotating the bobbin B (or yarn feeding package P ₂ )
It mainly consists of (Fig.).

The cradle arm 16 has a shaft 42 at both ends of its base 41, and the shaft 42 is pivoted to a support frame (not shown) of the thread winding device 3, and the two arms 16a provided on both sides of the base 41 , 16b are vertically movable.

Each arm 16a, 16b is provided with a bobbin holder 40 for rotatably holding the bobbin B, one arm 16a is movably connected to a base 41 with a pin 43, and the other arm 16
b is integrally connected to the base 41. The movable arm 16a is always urged in the closing direction by a spring or the like (not shown).

On the other hand, the frame 44 of the doffing truck 25 is provided with a cradle operating arm 45 that rotates the movable arm 16a of the cradle arm 16 in the vertical direction and moves it in the opening/closing direction. Drive means 46 are provided for movement in the opening and closing directions.

The cradle operating arm 45 includes an operating arm section 47 that rotates in the vertical direction and moves in the opening/closing direction to operate the movable arm 16a of the cradle arm 16.
a, and a mounting portion 47b that supports the operating arm portion 47a on the frame 44 so as to be rotatable and movable in opening and closing.

First, the mounting portion 47b includes a fixed bearing sleeve 48 attached to the frame 44, a rotating shaft sleeve 49 rotatably fitted into the fixed bearing sleeve 48, and an end of the rotating shaft sleeve 49 on the cradle arm 16 side. 49a
The pivot support arm 50 is attached to the pivot support arm 50.

The operating arm portion 47a includes a swing arm 52 connected to the tip of the swing support arm 50 with a pin 51.
and a movable base 53 that is integrally attached to the swing arm 52 and extends in the direction of the movable arm 16a.
and a slide arm 54 slidably provided on the movable base 53.

At the tip of the slide arm 54, there is provided an operating roller 55 that engages with the movable arm 16a, and a pressing tool 56 that includes a roller for pressing the movable arm 16a.

On the other hand, the driving means 46 includes an opening/closing cylinder 57 for moving the operating arm portion 47a of the cradle operating arm 45 in the opening/closing direction around the pin 51.
and a rotating cylinder 58 for vertically moving the operating arm portion 47a via the rotating shaft cylinder 49.

The opening/closing cylinder 57 has a rod tip 59.
is pin-coupled to one end 62 of an L-shaped lever 61 attached to the frame 44 and rotatable about a shaft 60, and the other end 63 of the lever 61 is loosely fitted into the rotating shaft cylinder 49. An operating rod 64 is pin-coupled. The other end of the operating rod 64 is connected to the movable base 53 of the operating arm portion 47a via a ball joint 65.

Also, the rod tip 66 of the rotation cylinder 58
is pin-coupled to a rotating lever 67 provided at the end 49b of the rotating shaft cylinder 49.

A slide arm 54 that can slide freely on the movable base 53
is provided for reciprocating sliding on a ball bearing 68 as shown in FIG. 5, and a support pin 69 is provided at the tip of the movable base 53 as shown in FIG. 70 are provided,
A tension spring 71 is attached between the pins 69 and 70, and is constantly urged in the direction of expansion by the force of the tension spring 71.

Next, the operation of this embodiment will be explained with reference to FIGS. 1 to 9.

First, the basic operation of the operating arm section 47a of the cradle operating arm 45 will be explained.

When the rod tip 59 of the opening/closing cylinder 57 of the drive means 46 contracts, the lever 61 is rotated counterclockwise about the shaft 60, and the operating rod 64 is pushed in through the lever 61, so that the lever 64 is pushed in through the ball joint 65. 6 As shown in Figure 6, the operating arm section 4
7a has a pin 51 at its center and its tip is connected to the frame 4.
Rotate in the direction closer to 4.

Further, when the rod end 59 of the opening/closing cylinder 57 is extended, the lever 61 rotates clockwise around the shaft 60, and the operating rod 64 is retracted. The tip of the pin 51 rotates in a direction away from the frame 44.

Next, when the rotation cylinder 58 of the drive means 46 expands and contracts, the rotation lever 67 pin-coupled to the rod tip 66 rotates, and the rotation shaft cylinder 49 is rotated. The rotation of the rotary shaft cylinder 49 causes the swing support arm 50 to rotate, and the operating arm portion 47a connected to the swing support arm 50 with a pin 51 to rotate up and down. In this case, the operating arm section 47
The ball joint 65 provided at the center of rotation of a is
Since it rotates freely as it rotates, the rotation is not transmitted to the operating rod 64.

Next, the cradle operating arm 4 during doffing work.
The operation of No. 5 will be explained.

First, when the yarn wound on the bobbin B by the yarn winding device 3 is fully wound, the yarn supply is cut, and the cradle operating arm 45 moves its operating roller 55 to the cradle arm 16 as shown in FIG. is in contact with the lower surface of the movable arm 16a, and in that state rotates upward to separate the fully wound package _P2 from the friction roller 17. In this state, as explained in FIGS. 10 to 12, the package support arm 33 is moved to the receiving position below both ends of the bobbin B of the fully wound package _P2 , and then the cradle operating arm 45 is moved as shown in FIG. is rotated toward the frame 44 side, and the movable arm 16a is rotated by its operation roller 55.
When opened, the bobbin holder 40 of the arm 16a
The fully wound package P ₂ is removed from the bobbin end, and the fully wound package P ₂ is attached to the package support arm 33.
handed over to.

After moving the fully wound package P ₂ , the 10th
When the empty bobbin B is held between the cradle arms 16 by the bobbin chucker 35 described in FIGS. As a result, the operating roller 55 of the cradle operating arm 45 is disengaged from the movable arm 16a, and the movable arm 16a is closed by the spring force to hold the bobbin B.

The cradle arm 16 is designed to maintain its rotational position even if the cradle operating arm 45 rotates downward and moves away, and the cradle operating arm 45 has a tip end as shown in FIG. When rotated upward while being rotated toward the frame 44 side, the operating roller 55 at the tip intersects the movable arm 16a of the cradle arm 16 and is positioned above the cradle arm 16.

Thereafter, the cradle operating arm 45 is made parallel to the frame 44, and the operating roller 55 is rotated downward so as to contact the upper surface of the movable arm 16a of the cradle arm 16, as shown in FIG.

At this time, the pressing tool 5 of the cradle operating arm 45
6 is in contact with the side surface of the movable arm 16a, and in this state, as shown in FIG. By retracting the operating rod 64 through the ball joint 65 and rotating the tip of the operating arm portion 47a in a direction away from the frame 44, the pressing tool 56 presses the movable arm 16a in the closing direction.

As a result, even if the dimensions of the bobbin B are uneven, the bobbin B will be firmly held by the bobbin holders 40 at both ends of the cradle arm 16.

Thereafter, the cradle operating arm 45 is returned to be parallel to the frame 44, and the cradle arm 16 is rotated downward by rotating the operating arm 45 downward as shown in FIG. The bobbin B is rotated in contact with the thread roller 17, and the thread is threaded onto the bobbin B at approximately the same time, so that the thread is wound onto the bobbin B.

At the start of winding of the bobbin B, since the contact pressure between the bobbin B and the friction roller 17 is low, the cradle operating arm 45 moves the bobbin B to the friction roller 17 via the cradle arm 16 with its operating roller 55. Press the bobbin B so that they are in contact with each other to maintain good rotation of the bobbin B.

When the bobbin B is wound and the cradle operating arm 45 further rotates downward, the slide arm 54, which is slidable on the movable base 53 of the cradle operating arm 45, resists the force of the spring 71 as shown in FIG. When the cradle operating arm 45 further rotates downward, the operating roller 55 comes off the tip of the movable arm 16a and rotates to the vertical position shown by the two-dot chain line in the figure. will be stopped.

In this state, the thread is wound onto the bobbin B, and when the bobbin B is fully wound, the above-mentioned operation is performed again.

[Effects of the invention] As explained above, the invention provides the following excellent effects.

(1) A pressing tool is provided on the cradle operating arm, and after the bobbin is attached to the cradle arm, the driving means moves the tip of the cradle operating arm and the pressing tool presses the movable arm of the cradle arm to close. The bobbin can be securely held between the bobbin holders.

(2) By pressing the movable arm with a pressing tool, the bobbin can always be held accurately even if the dimensions of the bobbin are uneven.

[Brief explanation of drawings]

Figures 1 to 9 show an embodiment of the present invention, Figure 1 is a plan cross-sectional view of the cradle arm being pressed by the cradle operating arm, Figure 2 is a front view of Figure 1, and Figure 3 is the cradle. A cross-sectional plan view of the cradle arm being lifted up by the operating arm, FIG. 4 is a view taken along the - arrow in FIG. 3, and FIG.
Line sectional view, Figure 6 is a plan sectional view of the movable side arm opened with the cradle operating arm, Figure 7 is a front view of the fully wrapped package cage lifted with the cradle operating arm, and Figure 8 is the cradle arm. Fig. 9 is a front view of the state in which the cradle operating arm is pressed against the bobbin at the start of thread winding, and Figs. 10 and 11 are of the earlier application. An overall view of the yarn false twisting machine, and FIG. 12 is a plan view of the doffing cart in FIG. 10. In the figure, 3 is a thread winding device, 16 is a cradle arm, 16a is a movable side arm, 40 is a bobbin holder, 45 is a cradle operating arm, 46 is a driving means, and 56 is a pressing tool.

Claims (1)

[Scope of utility model registration request] A cradle arm is provided with bobbin holders that support both ends of the bobbin at the tips of two arms facing each other, and one of the movable arms is provided so that it can be opened to attach or remove the bobbin, and the movable arm of the cradle arm is opened. In the thread winding device, the cradle operating arm has a roller that engages with the arm and is movable in the opening direction so as to open the arm using the roller. A yarn winding device comprising a pressing tool for pressing the movable arm, and a driving means for moving the cradle operating arm in a direction opposite to the opening direction of the cradle arm and pressing the movable arm with the pressing tool. Bobbin pressing device.