JPH0791706B2 - A roving prevention device for roving bobbins - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roving drop preventing device for a roving bobbin.

[0002]

2. Description of the Related Art In a spinning machine, a roving is drawn from a shinomaki (a roving bobbin) suspended on a creel at a high position and supplied to a lower draft part. Then, when the supply of the roving to the draft part progresses and the shinomaki becomes empty or approaches the empty, it is necessary to replace it with a new shinomaki. However, Shino-maki is suspended above the height of the worker, and the weight of Shino-maki is about 3 kg in recent years, and around 400 spinning machines are needed. ) Work is hard work for workers. In order to solve this problem, Japanese Laid-Open Patent Publication No. 58-120826 published on July 18, 1983 or Japanese Laid-Open Patent Publication No. 60-71724 published on April 23, 1985 describes a spare Shinonaki rail. There has been proposed a Shino-changing machine that automatically replaces the suspended Shino-maki and the residual thread bobbin that supplies the rough thread to the draft part and is almost empty. These Shino-changing machines take out the residual thread bobbin by raising and lowering and operating the pair of exchange arms and suspend it on a spare Shino-maki rail. Instead, the spare Shino-maki suspended on the spare Shino-maki rail is creeled. It acts to hang it. Then, at the time of replacement, the roving yarn being spun is cut, and then the residual thread bobbin and the spare Shino-maki are replaced.

If the roving yarn hangs from the residual yarn bobbin after cutting the roving yarn at the time of replacement, the roving yarn will be unwound during the conveyance of the residual yarn bobbin and will be entangled with other parts. However, among the above-mentioned conventional devices, the device disclosed in Japanese Patent Laid-Open No. 58-120826 does not give special consideration to the cutting of roving yarns connected to the draft part when the residual yarn bobbin is taken out from the creel, and is also special. Kaisho 60-71724
In the device disclosed in the publication, the bobbin support mounted on the exchange arm is rotatable, and the bobbin support is rotated with the residual thread bobbin fitted on the bobbin support, and the draft is passed through the roving guide. The roving thread connected to the part is pulled and cut, and the cut roving thread is wound around the residual thread bobbin by rotating the bobbin.

[0004]

However, it is difficult to completely wind the roving around the bobbin circumferential surface only by rotating the bobbin in the state where the roving hangs down, and the roving can be unwound during the conveyance of the residual bobbin. There is an inconvenience.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a roving bobbin capable of preventing a phenomenon in which a roving wound on a roving bobbin hangs down from a bobbin (so-called roving sag). It is to provide a roving thread sag prevention device.

[0006]

In order to achieve the above object, in the invention according to claim 1, a bobbin around which a roving is wound (hereinafter referred to as a roving bobbin) is conveyed from one side to the other by a moving means. In the moving path of the moving roving bobbin, the roving bobbin rotatably supported on the moving means is displaced into an operation position for pressing the outer circumference of the roving and a standby position where the roving bobbin cannot contact the roving. A possible pressing member is provided.

Further, in the invention described in claim 2, a supporting member provided on the moving means, and a bobbin supporting member rotatably disposed on the supporting member and capable of being fitted into the bottom portion of the roving bobbin. Body, first driving means for positively rotating the bobbin support, an operating position for pressing the outer circumference of the roving thread wound on the roving bobbin fitted into the bobbin support, and the roving bobbin A pressing member that can be displaced to a standby position where it cannot contact the roving and a second driving unit that drives the pressing member to the working position and the standby position are provided.

[0008]

In the invention described in claim 1, when the pressing member provided on the moving path of the roving bobbin is arranged at the operating position, the pressing member presses the outer circumference of the roving wound on the roving bobbin. Held in a state. When the roving bobbin is rotated in this state, the outer circumference of the roving wound on the roving bobbin is pressed by the pressing member, and the roving end is securely attached to the roving wound below it. .

According to the second aspect of the invention, the supporting member provided with the bobbin supporting member is moved by the moving means. When the pressing member is placed in the operating position while the roving bobbin is fitted in the bobbin support, the pressing member is held in a state of pressing the outer circumference of the roving wound on the roving bobbin. When the roving bobbin is rotated in this state, the outer periphery of the roving is pressed by the pressing member, and the roving end is surely attached to the roving wound thereunder. Therefore, the roving is not loosened during the transportation of the residual bobbin.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is embodied in a coarse thread drooping prevention device of a shinning machine will be described below with reference to the drawings. As shown in FIG. 1, in the creel 1 of the spinning machine, the main rails 2 are arranged in two rows inside and outside (only one side is shown) parallel to the longitudinal direction of the machine stand (perpendicular to the plane of the drawing) on the left and right sides of the machine stand. It is arranged. The main rail 2 is equipped with a hanger 3 while maintaining a pitch twice the spindle pitch, and the roving R drawn from the sapphire suspended from the hanger 3 is supplied to the draft part 5 via the roving guide 4. It is supposed to be done. A support bracket 6 is further projected outward from the creel 1, and a conveying rail 7 is extended at the tip thereof in parallel with the main shinomaki rail 2. A magazine 9 provided with two rows of hangers 8 is movably suspended on the transport rail 7, and the two rows of hangers 8 constitute a preliminary winding row.

Next, the vehicle travels along the spinning machine base via the guide rollers 11 that engage with the guide rails 10 extending on the front surface of the spinning machine base, and the spare shinomaki F and the main shinomaki F of the spare shinko line are formed. A description will be given of the transfer machine 12 that replaces the residual thread bobbin U as the roving bobbin of the winding rail 2. The transfer machine 12 is equipped with a residual thread bobbin transfer device and a preliminary transfer device (not shown). The residual thread bobbin transfer device serves to take out the residual thread bobbin U from the main winding rail 2 and suspend it from the hanger 8 of the magazine 9. The spare Shino winding transfer device removes the spare Shino winding F from the spare Shino winding row, that is, the hanger 8 of the magazine 9, and the spare Shino winding F is attached to the hanger 2 from which the residual yarn bobbin U is removed.
The action of hanging.

A base plate of the shin-seiki machine 12 is connected to a piston rod 13a of a cylinder 13 fixed to the frame of the shin-seiki machine 12, and an elevating board 14 that moves up and down while maintaining a horizontal state by the operation of the cylinder 13 is provided. It is arranged. Then, the residual yarn bobbin transfer device and the preliminary shinomaki transfer device are arranged adjacent to each other on the elevating board 14. The residual thread bobbin transfer device serves as moving means for moving the pegs 15 and 16 as bobbin supports that can be fitted into the bottom portion of the residual thread bobbin U between the preliminary shinomare row and the main shinowaki rail 2. The link mechanisms 17 and 18 are provided. Both link mechanism 1
Reference numerals 7 and 18 are parallel four-bar links, respectively. Support brackets 19 and 20 corresponding to fixed links are fixed on the elevating board 14, and support members 21 having pegs 15 and 16 at the tips of the link mechanisms 17 and 18, 22 are pin-connected. Both link mechanisms 17 and 18 are connected by a connecting member 23, and a rotary lever 24 that rotates integrally with the link mechanism 17 is driven by a cylinder 25, so that both link mechanisms 17 and 18 are shown by solid lines in FIG. It is arranged to be moved between a standby position and a forward position indicated by a chain line.

As shown in FIG. 2, the pegs 15 and 16 have flanges 15a and 16a, and are integrally rotatably fixed to a support shaft 26 which is rotationally driven by a motor M as a first driving means. ing. A support bracket 27 is fixed on the support members 21 and 22. A support shaft 28 is horizontally projected from the support bracket 27, and a holding member 29 including a support portion 29a and a pressing plate 29b is provided on the support shaft 28.
Is rotatably supported at. A latch pin 30 is provided on the support portion 29 a so as to project, and the tension spring 3 is provided between the latch pin 30 and the latch piece 31 provided on the support bracket 27.
2 are stretched. The pressing member 29 is the tension spring 3
The direction in which the pressing plate 29b is pressed against the residual thread bobbin U mounted on the pegs 15 and 16 by 2 (clockwise direction in FIG. 2).
Is urged by.

The solenoid 33 is provided on the support members 21 and 22 with the plunger 33a thereof abutting the support portion 29a.
Is fixed. Then, when the solenoid 33 is in the ON state, the plunger 33a is pulled in and the pressing plate 29
By the action of the tension spring 32, b is arranged at the operating position shown by the chain line in FIG. 2, that is, at the position where it is pressed against the residual thread bobbin U fitted into the pegs 15 and 16. Plunger 33 when solenoid 33 is off
a is held at the protruding position, and the pressing plate 29b is arranged at a standby position shown by a solid line in FIG. 2, that is, at a position where it cannot contact the residual yarn bobbin U fitted into the pegs 15 and 16. . The tension spring 32 and the solenoid 33 constitute a second drive means.

The preliminary roving winding transfer device is also composed of a link mechanism which is moved back and forth by the same structure as the residual yarn bobbin transfer device, and a peg is arranged on the upper surface of a supporting member mounted on the upper part thereof. ing.

Next, the operation of the device configured as described above will be described. When the Shino-maki suspended from the creel 1 approaches the sky, the Shino-changing machine 12 runs from one end of the spinning machine stand and stops at a predetermined Shino-changing position. Then, the roving R connected to the draft part 5 from the residual yarn bobbin U is manually cut. Next, the cylinder 25 of the residual thread bobbin transfer device is actuated and the piston rod is pulled in, the link mechanisms 17 and 18 are tilted to the spinning machine base side via the turning lever 24,
The support members 21 and 22 advance toward the position directly below the residual yarn bobbin U. When the advancement of the support members 21 and 22 is completed, the pegs 15 and 16 face the bottom of the residual yarn bobbin U.

Next, the cylinder 13 is actuated to move the elevator board 1
4 is moved upward, and the pegs 15 of the residual thread bobbin transfer device,
16 is inserted into the bottom of the residual thread bobbin U, and the peg of the preliminary shinomaki transfer device is inserted into the bottom of the preliminary shinomaki F. After the insertion of the pegs 15 and 16 into the residual yarn bobbin U and the preliminary winding F, the cylinder 13 is actuated, the piston rod 13a is retracted, and the elevating board 14 is moved down.

The motor M is driven near the start of the descent to rotate the pegs 15 and 16, the residual yarn bobbin U fitted into the pegs 15 and 16 rotates integrally, and the roving R hangs down from the residual yarn bobbin U. Is wound on the residual thread bobbin U. Peg 1
Prior to the rotational driving of the motors 5 and 16, the solenoid 33 is held in the ON state, and the pressing member 29 is arranged at the operating position shown by the chain line in FIG. 2 where the pressing plate 29b is pressed against the residual thread bobbin U. Therefore, when the residual thread bobbin U rotates together with the pegs 15 and 16, the roving R that hangs from the residual thread bobbin U.
Is reliably wound around the residual yarn bobbin U while being pressed against the outer periphery of the residual yarn bobbin U by the pressing plate 29b. As a result, the end portion of the roving R is prevented from being loosened during the transportation of the residual yarn bobbin U.

The bottom of the bobbin B is formed to have a larger diameter than the portion around which the roving R is wound, and the outer diameter of the portion of the residual yarn bobbin U around which the roving R is wound is the outer diameter of the bottom. Smaller than Therefore, when the pressing plate 29b cannot retract from the position where the pressing plate 29b is pressed against the roving R of the residual yarn bobbin U, the peg 1
It interferes with the insertion or removal of the residual thread bobbin U to the Nos. 5 and 16. However, since the pressing plate 29b of the pressing member 29 can be moved between the standby position and the working position, such a problem does not occur.

After the lowering of the elevating board 14 is completed, the cylinder 25
Is activated, the piston rod is projected, and the link mechanism 17,
In 18, the residual yarn bobbin U is returned to a position corresponding to the hanger 8 additionally hung at the end of the spare Shino winding row. Next, the preliminary shinomaki transfer device is operated, and the peg supporting the preliminary shinomaki F moves to the position where the residual yarn bobbin U is removed. In this state, the cylinder 13 is actuated again, the elevating board 14 rises and immediately descends, and the preliminary shinomaki F and the residual yarn bobbin U are hung on the hangers 2 and 8. Next, the link mechanism of the preliminary Shino-maki transfer device is returned to the original position, and one cycle of Shino-maki replacement is completed. Thereafter, similarly, the shinshin changing machine 12 is intermittently moved along the machine frame of the spinning machine, and shinkin changing is performed.

As described above, in order to prevent the dripping of the roving yarn, the pressing member 29 provided with the pressing plate 29b which is pressed against the roving yarn R on the bobbin when the bobbin B is rotated is provided with the pegs 15 and 16. Are disposed on the supporting members 21 and 22. Then, the support members 21 and 22 move the bobbins B mounted on the pegs 15 and 16 to predetermined positions. That is, the pressing member 29 is arranged on the moving path of the roving bobbin, and when the pressing member 29 is arranged at the standby position, the bobbin B is inserted into or removed from the pegs 15 and 16. Does not interfere with.

The present invention is not limited to the above-mentioned embodiment, and for example, the roving guide 4 is provided on the support member 21.
A cutting device for the roving R connected to the draft part 5 may be provided.

[0023]

As described in detail above, according to the present invention, the end of the roving thread wound on the roving bobbin is surely attached to the roving thread wound thereunder, so that the roving thread is removed from the bobbin. It is possible to prevent the phenomenon of sagging, and it is possible to reliably prevent problems such as loosening of the roving and entanglement with other parts during transportation of the roving bobbin.

[Brief description of drawings]

FIG. 1 is a partially cutaway side view showing an embodiment of the present invention embodying the present invention, a transfer machine and a creel.

FIG. 2 is a side view of a roving machine.

[Explanation of symbols]

15, 16 ... Pegs as bobbin supports, 17, 18
... Link mechanism as moving means 21, 22 ... Supporting member, 29 ... Pressing member, 29b ... Pressing plate, 32 ... Extension spring constituting second driving means, 33 ... Similarly solenoid, B ... Bobbin, M ... A motor as a driving means of No. 1, R ... roving, U ... Residual bobbin as roving bobbin.

Claims (2)

[Claims] 1. An operating position for holding the outer circumference of a roving of a roving bobbin rotatably supported on the moving means in a movement path of the roving bobbin for moving and moving the roving bobbin from one side to the other by the moving means. And a roving control device for the roving bobbin, which is provided with a pressing member that can be displaced at a standby position where the roving of the roving bobbin cannot contact the roving. 2. A supporting member provided on the moving means, a bobbin supporting member rotatably arranged on the supporting member and capable of being fitted into the bottom portion of the roving bobbin, and the bobbin supporting member is positively rotated. The first driving means, a working position for pressing the outer circumference of the roving thread wound around the roving thread bobbin fitted in the bobbin support, and a standby position where the roving thread wound around the roving thread bobbin cannot contact. A roving control device for a roving bobbin, comprising: a displaceable pressing member; and a second drive means for driving the pressing member to the working position and the standby position.