JP3070322B2 - Sliver cutting method and sliver cutting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sliver cutting method and a sliver cutting apparatus for a spinning machine such as a roving machine or a drawing machine.

[0002]

2. Description of the Related Art In recent years, various kinds of automation have been performed in a spinning factory to save labor and improve productivity, and automation of sliver splicing work in spinning machines such as roving machines and drawing machines has also been proposed (for example, JP-A-2-91233, etc.). In a sliver splicing method disclosed in Japanese Patent Application Laid-Open No. 2-91233, an automatic machine is equipped with an arm having a sliver gripping device and a sliver piecing unit. Then, the sliver being spun from the spinning machine is introduced into the introduction portion of the sliver piecing unit, and is gripped by the sliver piecing unit. Next, the sliver gripping device grips the sliver on the upstream side (can side) of the sliver piecing unit, moves in a direction away from the sliver piecing unit, and cuts the sliver. Next, the sliver gripping device grips the end of the sliver contained in the spare can, and introduces the sliver into the introduction portion of the sliver piecing unit so as to overlap the sliver terminal held by the sliver piecing unit. Then, the sliver gripping device moves in a direction away from the sliver piecing unit while the overlapping portion of both slivers is gripped, and a new sliver is cut. Next, the sliver piecing unit is operated to perform sliver splicing.

That is, in the conventional sliver splicing method, a series of sliver splicing operations are performed in a state where a spare can containing a sliver to be newly supplied to the spinning machine is arranged adjacent to the sliver can being spun.

[0004]

The sliver splicing operation is performed while the operation of the spinning machine stand is stopped. In general, the size of the sliver cans is increased in order to increase the operation efficiency of the spinning machine stand by lengthening the cycle of the sliver splicing operation. As a result, the sliver cans being spun in the roving machine cannot be arranged in a row in a state corresponding to each weight.
The sliver cans are arranged in a plurality of rows behind the roving frame.

However, if the conventional sliver splicing method is adopted when sliver cans being spun are arranged in a plurality of rows, a plurality of spare cans are required corresponding to the sliver cans being spun. As a result, not only the machine base installation area is increased, but also the sliver spun from the can arranged in the last row is supplied to the roving machine over a long distance, and there is a possibility that illegal draft may occur on the way. .

In order to solve these disadvantages, the present inventor has invented a new sliver joining method. In the present invention, after cutting the sliver connected to the sliver ken row during spinning which is approaching the empty state, the sliver ken row is replaced with a full sliver ken row, and the sliver after cutting and the sliver with the full sliver ken are connected. In this sliver splicing method, prior to replacement of the sliver can, it is necessary to cut the sliver being spun into a length that facilitates the sliver splicing operation by the sliver splicing device.

However, as shown in FIG. 20, the sliver S being spun is drawn obliquely from the can 70 toward a separator 71 arranged at an upper position facing the center of the can 70. Then, from separator 71 to can 7
The position of the sliver S reaching 0 becomes indeterminate except for a portion extending right below due to the weight of the sliver S near the separator 71. Therefore, in order to surely cut the sliver S by the cutting device, it is conceivable that the sliver S is cut at a portion extending right below near the separator 71 where the position is always constant. However, when the sliver S is cut at that position, the sliver S after cutting is separated by the separator 71.
There is a problem that the slivers fall off from the feed roller 72 arranged at the position corresponding to the above and hinder the subsequent sliver joining operation. On the other hand, in order to prevent the cut sliver S from dropping off from the feed roller 72, when performing gripping cutting of the sliver S at a position close to the can 70, not only the position detection sensor of the sliver S is required, but also There is a problem that the mechanism and control for moving the gripping and cutting device to the position are complicated.

The present invention was made in view of the problems described above, without case purpose of performing the sliver piecing work in an automatic machine, which after disconnect sliver dropping from the feed roller, subsequent sliver it is to provide a sliver cutting method and sliver cutting device capable of disconnecting the sliver reliably during spinning the splicing operation with no predetermined length hinder.

[0009]

In order to achieve the above object, in the cutting method according to the first aspect, the sliver is trapped at a position below the feed roller by the catching means, and the catching means is placed upstream of the sliver. by a predetermined amount of movement, then in
Sliver after the cutting that Taresaga from off Idorora was made to cut the sliver at a position equal to or greater than a predetermined length.

A sliver cutting device according to a second aspect of the present invention is provided in an automatic machine that moves along a rail provided above a can for supplying the sliver, and includes a catching portion capable of catching the sliver sliver. A sliver catching means provided such that the catching section is movable between a position below the feed roller and a predetermined position below the position in a state where the automatic machine is located at the sliver cutting work position; and 2 holding the sliver in the vicinity
And a cutting means for cutting the sliver gripped by the two gripping means between the gripping positions by the two gripping means.

Further, in the sliver cutting device according to the third aspect, the catching portion also functions as a first gripping means, and the cutting means captures the sliver after the catching portion and the second gripping means grip the sliver. The moving means moves the portion to a position separated from the second gripping means.

[0012]

When the sliver splicing is required, the automatic machine moves along the rail to reach a position corresponding to the cans requiring the sliver splicing. In this state, the catching portion of the sliver catching means is arranged at a position near and below the feed roller, and the device sliver is captured by the catching portion. Capturing is a state in which the capturing unit is freely movable along the sliver unlike gripping. The sliver extends via a feed roller disposed at a position substantially opposite to the center of the can to connect an arbitrary position in the can, and its position is not specified. However, in the vicinity of the lower portion of the feed roller, the sliver is straightened by its own weight, so that the sliver is reliably captured by the capturing unit. Next, the capturing unit is moved to a predetermined position toward the upstream side (can side) of the sliver, and the sliver is disposed at a position connecting the feed roller and the capturing unit. Then, the sliver at a position where the length depending from feedroll after disconnect is equal to or greater than a predetermined length is disconnected.

In the apparatus according to the second aspect, the cutting of the sliver is performed in a state where the sliver is gripped by two gripping means near the predetermined position, and the sliver is cut between the gripping positions by the two gripping means. Is cut by

In the device according to the third aspect, the sliver is gripped by the capturing portion after the capturing portion is arranged at a predetermined position. Further, the sliver is gripped at another location by the second gripping means, so that the sliver is gripped at two locations. Next, the catcher is moved in a direction away from the sliver gripper by the second gripper, and the sliver is cut.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will now be described with reference to FIGS.
This will be described with reference to FIG. As shown in FIG. 1, behind the roving machine 1, cans 2 for supplying the sliver S to the roving machine 1 are arranged in a plurality of rows in parallel along the longitudinal direction of the roving machine 1 (a direction orthogonal to the plane of FIG. 1). Have been. A creel 3 is provided behind the roving machine 1 so as to extend in a direction perpendicular to the longitudinal direction of the roving machine 1, and the feed roller 4 is supported by the creel 3 in a state of extending along the longitudinal direction of the roving machine 1. . In addition, a support rod 5 is provided near the lower portion of the feed roller 4.
Extend in parallel with the feed roller 4. Kens 2
The separator 6 that restricts the movement of the sliver S in the lateral direction (the axial direction of the feed roller 4) is supported by the support rod 5 at the rising position of the sliver S.

The creel 3 is provided with a running rail 7
Are supported via brackets 8 so as to extend along the longitudinal direction of the roving machine 1 above the rows. An automatic machine 9 is supported on the traveling rail 7 so as to be able to travel. FIG.
As shown in FIG. 1, the automatic machine 9 has a box-shaped housing 10 suspended from a traveling rail 7 via a bracket 12 provided with a driving roller 11a and a driven roller 11b. The drive roller 11a is driven by a motor (not shown), and the automatic machine 9 moves along the traveling rail 7 by forward and reverse rotation of the motor. The automatic machine 9 is provided with a positioning means (not shown) which can be engaged with a positioning member (not shown) provided on the traveling rail 7, and can be stopped at a predetermined working position.

The housing 10 is provided with a sliver cutting device 13 on the side corresponding to the moving direction of the automatic machine 9 during the sliver cutting operation.
Are arranged. The sliver cutting device 13 is a sliver catching means 14 having a catching portion capable of catching a sliver.
And second gripping means 15 for gripping the sliver S captured by the capturing unit. The catching of the sliver S refers to a state in which the sliver S can freely move in the length direction although the sliver S is engaged with the sliver S unlike gripping.

As shown in FIG. 2 and FIG.
A support bracket 16 is fixed to the upper wall of the automatic bracket 9, and a rotating shaft 17 extends along the moving direction of the automatic machine 9, and one end of the rotation shaft 17 is supported so as to protrude to the side of the support bracket 16. I have. A base end of a support arm 18 is rotatably supported by the rotation shaft 17 at a position corresponding to the support bracket 16. A toothed pulley 19 (shown in FIG. 3) is supported at an intermediate portion of the rotating shaft 17 so as to be integrally rotatable. A motor 20 capable of normal and reverse rotation is fixed to the housing 10 via a bracket 21 behind the rotation shaft 17 (to the right in FIG. 2). A toothed pulley 22 is fixed to a drive shaft 20a of the motor 20 so as to be integrally rotatable. A toothed belt 23 is wound between the toothed pulleys 19 and 22. Then, the forward and reverse rotation of the motor 20 causes the support arm 18 to extend obliquely upward as shown in FIG. 1 and the like, and a position rotated about 140 ° counterclockwise in FIG. 1 from the capture start position. (The position in FIG. 15).

A detected member 20b is fixed to a drive shaft 20a of the motor 20 so as to be integrally rotatable. A sensor (not shown) for detecting the detection target member 20b when the support arm 18 is disposed at the capturing start position and the position shown in FIG. 15 is attached to the bracket 21.

At the tip of the support arm 18, a capturing piece 24 constituting a capturing portion is fixed. As shown in FIG. 3, the capturing piece 24 is provided with the engaging portion 2 having a diameter larger than the diameter of the sliver S.
4a and a substantially V-shaped guide portion 24b continuous with the engaging portion 24a, and the guide portion 24b is fixed so as to face the moving direction of the automatic machine 9 during the sliver cutting operation. Near the top end of the upper surface of the support arm 18, support shafts 25, 2
6 and 27 are erected. A driven gear 28 is supported on the support shaft 25, an intermediate gear 29 is supported on the support shaft 26, and a drive gear 30 is rotatably supported on the support shaft 27.
The driven gear 28 and the driving gear 30 are each an intermediate gear 29
Is engaged. The driven gear 28 has a first gripping lever 31
Are fixed so as to be integrally rotatable. The first grip lever 31 is disposed rotatably along the upper surface of the capturing piece 24 in a state of intersecting with the engaging portion 24a and the guide portion 24b. The upper surface when the support arm 18 is arranged at the horizontal position is defined as the upper surface of the support arm 18 and the capturing piece 24.

A photoelectric sensor 58 is provided on a part of the capturing piece 24 at a position where the sliver that has entered the guide portion 24b can be detected. When the automatic machine 9 moves, the sliver S is detected. Is configured to output a start command signal for the disconnection operation.

As shown in FIGS.
8 has a column 32 protruding therefrom.
A first cam lever 33 having a character shape is rotatably supported at the center thereof. A cam follower 34 is rotatably supported at a first end of the first cam lever 33, and a pin 35 is protrudingly provided at a second end. A pin 36 projects from the upper surface of the drive gear 30 near the outer periphery. The connecting rod 37 has a first end rotatably supported by the pin 35 and a second end rotatably supported by the pin 36 in a plane orthogonal to the drive gear 30.

As shown in FIGS.
6 is provided with a pair of columns 38, and a male thread is formed at the tip of the column 38. A first cam 39 for driving the first cam lever 33 has a nut 40
It is tightened and fixed. A tension spring 41 is stretched between the first cam lever 33 and the support arm 18. The tension spring 41 is stretched to bias the first cam lever 33 in a direction in which the cam follower 34 comes into pressure contact with the first cam 39. The cam surface of the first cam 39 has three circular arc surfaces 39a, 39b, 3 having the same center and different radii.
9c is smoothly connected.

The radius of each of the arc surfaces 39a, 39b, 39c is such that arc surface 39a> arc surface 39b> arc surface 39c. The first cam 39 is positioned such that the arc surface 39a when the support arm 18 is disposed at the capturing start position (the state shown in FIGS. 1 and 2) and the arc surface 39b when the support arm 18 is disposed at the horizontal position are vertically downward. The arc surfaces 39c are respectively formed so as to engage with the cam followers 34 when they are arranged. In a state where the cam follower 34 is engaged with the arc surface 39a, the arc surface 39b, and the arc surface 39c, respectively, the first gripping lever 31 does not intersect with the capturing piece 24, the retracted position, the capturing piece 24.
And a gripping position that intersects with the engaging portion 24a. And the first
With the rotation of the arm 18, the cam follower 34 sequentially engages with the arc surface 39a, the arc surface 39b, and the arc surface 39c. The first grip lever 31 constitutes a capturing section together with the capturing piece 24, and also functions as a first gripping means.

As shown in FIGS.
0, a guide plate 42 is fixed at a position substantially corresponding to the movement locus of the capturing piece 24.
A support bracket 43 is fixed above the head. A rotation shaft 44 is rotatably supported by the support bracket 43,
At the first end of the rotating shaft 44, a second
The grip lever 45 is fixed so as to be integrally rotatable. A driven gear 46 is fixed to a second end of the rotating shaft 44 so as to be integrally rotatable.

A bracket 47 is fixed to the housing 10 diagonally above the support bracket 43, and a bracket 48 is fixed above the support bracket 43, respectively. A drive gear 49 having a larger diameter than the driven gear 46 is rotatably supported on the bracket 47 via a support shaft 50 in a state of meshing with the driven gear 46. A support pin 51 is provided protruding from the outer periphery of the drive gear 49. On the other hand, on the bracket 48, a support post 52 is provided so as to protrude in a state extending in parallel with the rotation shaft 17, and on the support post 52, a second cam lever 5 constituting a second gripping means is provided.
3 is rotatably supported. The second cam lever 53 and the drive gear 49 are connected via a connecting rod 54 whose first end is bent at a right angle. The connecting rod 54 is the first
The end is rotatably connected to the first end of the second cam lever 53, and the second end is swingably supported by the support pin 51 in a plane orthogonal to the drive gear 49. A cam follower 55 is rotatably mounted at a second end of the second cam lever 53.

As shown in FIGS. 3 and 6, a second cam 56 is fixed to an end of the rotating shaft 17 to which the support arm 18 is fixed so as to be integrally rotatable. A tension spring 57 is stretched between the second cam lever 53 and the housing 10. The second cam lever 53 is rotationally urged by a tension spring 57 in a direction in which the cam follower 55 comes into pressure contact with the second cam 56. As shown in FIG. 5, the cam surface of the second cam 56 is formed in a shape in which two arc surfaces 56a and 56b having the same center and different radii are smoothly connected. Both arc surfaces 56
The radii of a and 56b are arc surface 56a <arc surface 56b.

The second cam 56 is formed so that the arc surface 56a engages with the cam follower 55 when the support arm 18 is located between the capturing start position and the position extending substantially parallel to the second grip lever 45. I have. The second cam 56 is formed such that the arc surface 56b engages with the cam follower 55 when the support arm 18 is further rotated counterclockwise in FIG. 2 from a position extending substantially parallel to the second grip lever 45. I have. The second gripping lever 45 is disposed at a standby position extending upward when the cam follower 55 is engaged with the arc surface 56a, and the cam follower 55 is
6b, it is arranged at a gripping position where it engages with the guide plate 42. And the support arm 18
With the rotation of the second cam 56 that rotates integrally with the cam follower 55, the cam follower 55 sequentially engages with the arc surfaces 56a and 56b.

A known sliver splicing device (for example, Japanese Unexamined Patent Application Publication No. 2-912) is provided in the housing 10 so that sliver splicing can be performed at a position where the sliver extends vertically.
No. 33 publication) (not shown). The housing 10 is provided with a control box (not shown) for transmitting and receiving signals to and from a control device (not shown) and for controlling the motor 20 and the sliver joint device.

Next, the operation of the above-configured apparatus will be described. The automatic machine 9 waits at a predetermined standby position that does not hinder the supply of the sliver S. Sliver S in Kens 2
Is approaching empty, the operation of the roving machine 1 is stopped, and a work command signal is output from the control device. Upon receiving the work command signal from the control device, the automatic machine 9 starts moving along the traveling rail 7. The automatic machine 9 reciprocates along the traveling rail 7, and performs only sliver cutting work while the automatic machine 9 travels in the forward movement, and when returning, the automatic machine 9 stops at the joining position and performs only the sliver joining work. Do.

When the automatic machine 9 does not perform the sliver cutting operation, the support arm 18 is located at a position where the catch pieces 24 and the like cannot be engaged with the sliver S (the position in FIG. 15). At the time of the sliver cutting operation, the automatic machine 9 moves toward the position corresponding to the sliver S to be cut in a state where the support arm 18 is arranged at the capturing start position, as shown in FIGS. In this state, the cam follower 34 engages with the arc surface 39a near the end of the arc surface 39a of the first cam 39,
The first grip lever 31 is disposed at the retracted position shown in FIG. Then, the capturing piece 24 is held in a state in which the guide portion 24b corresponds to a portion of the sliver S extending substantially directly below the feed roller 4. As shown in FIG. 8, the cam follower 55 is engaged with the arc surface 56a of the second cam 56, and the second gripping lever 45 is located at the standby position. In this state, the automatic machine 9 moves and the sensor 58 detects the sliver S to be cut, and issues a sliver cutting work start command. At this time, the sliver S is engaged with the engaging portion 24a as shown in FIG. The sliver S is
It may be present in the guide portion 24b of the capturing piece 24.

When the operation of the roving machine 1 is stopped for the sliver joining operation, the position of the sliver S connected from the can 2 to the feed roller 4 is not fixed. However, in the vicinity of the lower part of the separator, the sliver S is almost straight because of its own weight.
Is reliably captured by the capturing piece 24.

Next, the motor 20 is driven to rotate forward, and the rotating shaft 17 is rotated counterclockwise in FIG. 7 via the toothed pulley 19, the toothed belt 23 and the toothed pulley 22, and the support arm 18 and the second The cam 56 is also rotated in the same direction. The rotation of the support arm 18 causes the cam follower 34 to be immediately disengaged from the arc surface 39a, and the arc surface 39a and the arc surface 3 are disengaged.
9b. As shown in FIG. 10, the rotation shaft 1 is moved to a position where the support arm 18 becomes substantially horizontal.
When 7 rotates, the cam follower 34 comes into engagement with the arc surface 39b. The cam follower 34 has an arc surface 39a.
The drive gear 30 is rotated via the connecting rod 37 during the rotation of the first cam lever 33 from the state where the first cam lever 33 is engaged to the state where the first cam lever 33 is engaged with the circular arc surface 39b. Then, the driven gear 28 is rotated via the intermediate gear 29, and the first grip lever 31 is rotated together with the driven gear 28 from the retracted position to the capturing position shown in FIG. On the other hand, during this time, the second cam 56
Is rotated with the arc surface 56a engaged with the cam follower 55, the second cam lever 53 is held at the same position, and the second gripping lever 45 is held at the standby position as shown in FIG.

From this state, when the rotating shaft 17 further rotates in the same direction and the support arm 18 rotates to a position where the capturing piece 24 passes through the first end of the guide plate 42, the second cam 56 The engagement between the arc surface 56a and the cam follower 55 is released. And, further, the rotating shaft 1
7 rotates, as shown in FIG.
Are engaged with the arc surface 56b, and thereafter, the cam follower 55 is held in the state of engaging with the arc surface 56b. With the rotation of the support arm 18, the capturing piece 24 moves in a state of being engaged with the sliver S, and the sliver S is arranged at a position connecting the feed roller 4 and the capturing piece 24.

Since the position of the sliver S connected from the feed roller 4 to the can 2 is not fixed, the sliver S may move in a direction to come out of the guide portion 24b when the support arm 18 rotates, depending on the position of the sliver S. For example, even when the sliver S is located near the exit of the guide portion 24b of the capturing piece 24, the first grip lever 31
Is rotated to push the sliver S into the engaging portion 24a and to catch the sliver S.
The sliver S does not fall out of the support arm 18.
Is arranged at a predetermined position by the rotation of.

While the second cam 56 rotates from the state in which the cam follower 55 engages with the arc surface 56a to the position in which it engages with the arc surface 56b, the second cam lever 53 is moved as shown in FIG.
1 is rotated counterclockwise. The rotation of the second cam lever 53 rotates the drive gear 49 via the connecting rod 54, and the rotation of the drive gear 49 causes the second grip lever 45 to rotate together with the driven gear 46. 13 and 14
As a result, the second grip lever 45 is in a state of being pivotally disposed at the grip position. The second grip lever 45 is rotated by 180 ° from the standby position, and the feed roller 4 is rotated during the rotation.
When the sliver S is engaged with the guide plate 42 and is held at the gripping position, the sliver S is gripped in cooperation with the guide plate 42.

When the rotating shaft 17 further rotates from the state shown in FIG. 13, the cam follower 34 is brought into a state of engaging with the arc surface 39c. The first position from which the cam follower 34 engages with the arc surface 39b to the position where the cam follower 34 engages with the arc surface 39c.
While the cam lever 33 rotates, the drive gear 30 is again rotated in the same direction via the connecting rod 37. Then, the first grip lever 31 is rotated together with the driven gear 28 from the capture position to the grip position shown in FIG. On the other hand, the second cam 5
6 is rotated with the arc surface 56b engaged with the cam follower 55, the second cam lever 53 is held at the same position, and the second grip lever 45 is also held at the grip position as shown in FIG. The distance between the second gripping lever 45 and the first gripping lever 31 when the first gripping lever 31 is disposed at the gripping position is set to a value larger than the fiber length of the sliver S.

After the rotation shaft 17 continues to rotate even after the first grip lever 31 is placed at the grip position, the distance between the first grip lever 31 and the second grip lever 45 is reduced as shown in FIG. Stop in a state where the capturing piece 24 is arranged at a position sufficiently longer than the fiber length. During this time, the sliver S is pulled and cut so as to widen the interval between the two gripping positions while being held by the first gripping lever 31 and the second gripping lever 45 at two locations. In the state where the rotating shaft 17 is stopped, that is, the state where the support arm 18 is stopped, FIG.
As shown in FIG. 5, the cam follower 34 is engaged with the arc surface 39c, and the first grip lever 31 grips the cut end of the sliver S.

When gripping the sliver S, it is conceivable to first grip the sliver S with the first grip lever 31 and then grip it with the second grip lever 45. However, when the sliver S is gripped by the first gripping lever 31 before the sliver S is gripped by the second gripping lever 45, the sliver S is pulled while the sliver S is gripped by the first gripping lever 31. as a result,
The sliver S on the feed roller 4 side, that is, the sliver S used as a product after sliver joining is pulled by the first grip lever 31, and the sliver S may be elongated. Further, when the second gripping lever 45 moves to the gripping position with the first gripping lever 31 gripping the sliver S, the second gripping lever 45 pulls the sliver S. Since the sliver S is gripped on the can 2 side by the second grip lever 45, the sliver S on the feed roller 4 side is extended. When the sliver S used as a product is elongated, the quality of the product is reduced. However, in this embodiment, since the second gripping lever 45 first grips the sliver S, even when the sliver S is pulled when the second gripping lever 45 moves to the gripping position, the sliver S on the can 2 side can be freely moved. The sliver S on the feed roller 4 side is not stretched.

Next, the motor 20 is driven in the reverse direction to rotate the rotating shaft 1.
7 is rotated clockwise in FIG. 15, and the support arm 18 and the second cam 56 are also rotated clockwise in FIG. The drive of the motor 20 is continued until the support arm 18 is located at the capturing start position. Support arm 18
Is located at a position substantially parallel to the second gripping lever 45 (the state of FIG. 18).
The engagement with 9c ends. When the support arm 18 reaches the position shown in FIG. 18, the cam follower 34 is engaged with the arc surface 39b. As a result, the first grip lever 31 is disposed at the capturing position shown in FIG.
The cut end of the sliver S gripped by the grip lever 31 and the capturing piece 24 is released, and the cut end of the sliver S falls into the can 2 by its own weight.

On the other hand, the cam follower 55 is engaged with the arc surface 56b from the state engaged with the arc surface 56b. During this time, the second cam lever 53 is rotated clockwise in FIG. 16, the second grip lever 45 is arranged at the standby position, and the grip of the sliver S is released. If the sliver cutting position is a position close to the feed roller 4, the gravity acting on the portion of the sliver S extending from the feed roller 4 toward the roving machine 1 becomes larger than the gravity acting on the sliver end after cutting. The sliver end slips off the feed roller 4. However, since the cutting position of the device sliver is a position separated from the feed roller 4 by a predetermined length or more,
The sliver S hangs straight down from the feed roller 4 by its own weight. Thereafter, the support arm 18 is further rotated clockwise to return to the capturing start position.

Thus, one cycle of the sliver cutting operation is completed. Then, the automatic machine 9 is connected to the next sliver S.
Move to the position corresponding to. Hereinafter, the automatic machine 9 moves along the traveling rail 7 and performs sliver cutting work at a position corresponding to the sliver S to be cut in the same manner as described above. Then, after the cutting of all the device slivers S in the can row corresponding to the traveling rail 7 is completed, when the automatic machine 9 reaches a predetermined position on the traveling rail, the automatic machine 9 stops at that position.
Further, the motor 20 is stopped in a state where the support arm 18 is located at the position shown in FIG. 15, that is, the position where the capturing piece 24 and the like cannot be engaged with the sliver S.

Next, the empty sliver can is replaced with an empty sliver can and the full sliver can is replaced, and the full sliver can is placed at a position corresponding to the sliver S hanging down from the feed roller 4. Thereafter, the automatic machine 9 starts moving in the direction opposite to the sliver cutting operation, intermittently stops at a predetermined position, and sequentially performs the sliver joining operation. Then, after all the sliver joining work of the cans 2 corresponding to the traveling rail 7 is completed, the operation of the roving machine 1 is restarted.

In the apparatus of this embodiment, since the catching piece 24 and the first gripping lever 31 constituting the catching part also serve as the first sliver gripping means, the number of parts is reduced and the size is easily reduced. . Further, since the first grip lever 31 and the second grip lever 45 are driven by the same drive source by the cam mechanism, the operation of each grip lever 31, 45 is fast,
In addition, it can be driven reliably with high timing accuracy.
The sliver cutting time of the cycle can be shortened, and the control is simplified.

The present invention is not limited to the above-described embodiment. For example, the stop position of the support arm 18 at the end of one cycle of the sliver cutting operation is changed to the release position of the sliver cutting end (FIG. 18). Position). In this case, after the automatic machine 9 starts running, the motor 20 is driven to rotate in the reverse direction, and the support arm 18 is moved from this position to the capture start position shown in FIG. In the case of this configuration, the capture piece 24 and the like do not contact the sliver S hanging from the feed roller 4 after cutting, and there is no possibility that the sliver S is damaged.

Further, the cutting operation of the sliver S is not limited to be performed during the movement of the automatic machine 9 as in the above-described embodiment, but may be performed while stopping the automatic machine 9 at the sliver position each time. .

The support arm 18 and the first grip lever 31
And the second grip lever 45 is driven by one motor 20, but may be driven by different motors. Further, instead of the configuration in which the first grip lever 31 and the second grip lever 45 are driven by the cam mechanism, a configuration in which each of the first grip lever 31 and the second grip lever 45 is driven by another driving means such as a cylinder or a solenoid may be employed.

Further, the cutting of the sliver S is not necessarily limited to the method of moving only one of the two parts holding the sliver S, but the two parts are relatively moved in a direction in which the two parts are separated from each other, or the two parts are separated. In a fixed state, the sliver S may be pulled by a member that hooks on the sliver S between the two gripping portions, or may be cut by a blade. When scissors are used as the blade, it is not necessary to hold the sliver S at two places.

Further, instead of a configuration in which the catching portion and the first gripping means are shared, first holding means independent of the capturing portion may be provided on the support arm 18. Further, the sliver splicing device may not be provided in the automatic machine 9 and only the sliver cutting device 13 may be provided. When the sliver cutting device 13 is shared by a plurality of can rows, a carrier is provided which moves to the side of the traveling rail 7 erected for each can row, and the automatic machine 9 is mounted on the carrier. May be moved to the traveling rail 7. Alternatively, the traveling rails 7 installed corresponding to the respective can rows may be connected to each other by connecting rails, so that the automatic machine 9 can move on the other traveling rails 7 through the connecting rails.

Further, the present invention may be applied to a method in which a sliver splicing operation is performed in a state in which a spare full sliver can is arranged in parallel with a device sliver can approaching the sky.

[0051]

As described above in detail, according to the present invention, the sliver after cutting does not fall off the feed roller, and the sliver has a predetermined length that does not hinder the subsequent sliver joining operation.
In can be securely cut sliver in the spinning.

Further, the catching part also functions as the first holding means, and after the catching part and the second holding means hold the sliver, the catching part is moved to a position separated from the second holding means. In the apparatus, the number of parts is reduced.

[Brief description of the drawings]

FIG. 1 is a schematic side view showing a relationship between a roving machine, a running rail, a sliver cutting device, and the like according to an embodiment of the present invention.

FIG. 2 is a partially cutaway side view of the sliver cutting device.

FIG. 3 is a partially cutaway front view of a support arm.

FIG. 4 is a partially cutaway side view of a support arm.

FIG. 5 is a partially cutaway side view of the second gripping means.

FIG. 6 is a front view of a second gripping means.

FIG. 7 is a schematic side view showing the operation of the sliver cutting device.

FIG. 8 is a schematic side view of the second gripping means corresponding to FIG.

FIG. 9 is a schematic front view showing a relationship between a first grip lever and a capturing piece corresponding to FIG. 7;

FIG. 10 is a schematic side view showing the operation of the sliver cutting device.

11 is a schematic side view of a second gripping means corresponding to FIG.

FIG. 12 is a schematic front view illustrating a relationship between a first grip lever and a capturing piece corresponding to FIG. 10;

FIG. 13 is a schematic side view showing the operation of the sliver cutting device.

FIG. 14 is a schematic side view of the second gripping means corresponding to FIG.

FIG. 15 is a schematic side view showing the operation of the sliver cutting device.

FIG. 16 is a schematic side view of the second gripping means corresponding to FIG.

FIG. 17 is a schematic front view showing a relationship between a first grip lever and a capturing piece corresponding to FIG. 15;

FIG. 18 is a schematic side view showing the operation of the sliver cutting device.

19 is a schematic side view of the second gripping means corresponding to FIG.

FIG. 20 is a schematic diagram showing a relationship among a device sliver, a feed roller, and a can.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Roughing machine, 2 ... Kens, 4 ... Feed roller, 6 ... Separator, 7 ... Running rail, 9 ... Automatic machine, 14 ... Sliver-capturing means, 15 ... Second gripping means, 18 ... Capturing means and moving means , Sliver sliver, a support arm, 24, a capture piece, a capture part, 31, a first gripping lever, 42, a guide plate, also a second gripping means, 45, a second gripping lever, S, and a sliver.

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-2-91233 (JP, A) JP-A-63-92737 (JP, A) JP-A-4-217562 (JP, A) JP-A-4-1992 308232 (JP, A) JP-A-50-29835 (JP, A) JP-A-4-92574 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) D01H 15/00 D01H 9 / 18

Claims (3)

(57) [Claims] The method according to claim 1] gimmicks sliver captured by the capture means at a position below the feed rollers, the catching means is moved by a predetermined amount on the upstream side of the sliver, and then is later cut that Taresaga <br/> from off Idorora sliver cutting method sliver cuts the sliver at a position equal to or greater than a predetermined length. 2. An automatic machine, which moves along a rail provided above a can that supplies sliver, is provided with a catching unit capable of catching a device sliver,
A sliver catching means provided such that the catching portion is movable between a position below the feed roller and a predetermined position below the position in a state where the automatic machine is located at the sliver cutting work position; 2. A sliver cutting device comprising: two gripping means for gripping a sliver; and a cutting means for cutting the sliver gripped by the two gripping means between gripping positions of the two gripping means. 3. The capturing unit also serves as a first gripping unit, and the cutting unit separates the capturing unit from the second gripping unit after the capturing unit and the second gripping unit grip the sliver. 3. The sliver cutting device according to claim 2, wherein the sliver cutting device is moving means for moving the sliver.