JPH0316406B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a device for removing residual roving from a roving bobbin that is wound on a roving frame and unwound on a spinning frame.

Prior Art The process of drawing and twisting a sliver using a roving frame to create a roving (so-called "shino"), winding it onto a roving bobbin via a flyer mechanism, and then transporting and feeding it to a spinning frame is , is an important process in a spinning factory.

On the other hand, recently, a so-called bobbin conveying device has been developed that continuously sends the roving bobbin, which has been unwound by the spinning frame and becomes an empty bobbin, to the roving frame while hanging in a line on a bobbin hanger. is being widely used and is contributing to labor savings in spinning factories.

However, the roving bobbin unwound by the spinning machine is so-called "shino-tsugi" with some roving remaining on the bobbin due to the need to reduce the chance of yarn breakage in the spinning machine. ,
The roving bobbin is not a completely empty bobbin, and therefore, such a roving bobbin cannot be reused in the roving frame as it is. For this reason, a device has been proposed that can efficiently remove residual roving remaining on the roving bobbin in the intermediate path of the bobbin conveying device (for example, Japanese Patent Laid-Open No. 60-94628).

This device has a support member and a suction member that can move forward and backward, sandwiching a roving bobbin that is suspended and transported in a row by a bobbin transport device, and a support member and a suction member that can move back and forth freely are arranged on both sides of the roving bobbin to move them forward. When the roving bobbin is clamped and the drive roller on the support member is rotated, the roving bobbin can be rotated and the remaining roving on the roving bobbin can be unwound. can be sucked into a suction member and disposed of as is.

Problems to be Solved by the Invention According to such prior art, the roving bobbin is
Since it is rotationally driven by a drive roller on a support member, if you try to process a large number of roving bobbins at the same time, you will need drive rollers depending on the number of rovings to be processed, and each of them will require a drive motor. However, the drawback was that the overall structure became extremely complicated. In addition, since the support member and the suction member move back and forth in the horizontal direction independently of each other, their drive sources are required independently, which also makes the overall structure complicated and large. It was inevitable that it would take shape.

Therefore, in view of the actual state of the prior art, an object of the present invention is to utilize a long-known flocked belt for rotating the roving bobbin, and to replace the support member with a swinging frame consisting of an L-shaped frame. By using this, the roving bobbin can be suspended from the bobbin hanger midway through the bobbin conveying device.
To provide a residual roving removal device for a roving bobbin that can efficiently remove residual roving yarn remaining on a roving bobbin in units of a predetermined number of roving yarns, and that can form a simple and compact overall configuration. It is about providing.

Means for Solving the Problems The configuration of the present invention for achieving the above object includes a flocking belt that is rotatably suspended from a bobbin hanger and runs parallel to a plurality of roving bobbins being conveyed, and a pressing wheel. The swinging frame is equipped with a swinging frame that presses the roving bobbin against the flocking belt via the swinging frame, and a comb wheel that rotates at a circumferential speed higher than the traveling speed of the flocking belt while the tip of the comb is in contact with the flocking belt. It is an L-shaped frame consisting of a horizontal piece and an upright piece, and a pulley installed at the tip of the horizontal piece rolls in a step cam that reciprocates horizontally, so that the upright piece rotates around the swing axis. Its gist is to swing back and forth.

Effect When using such a configuration, by swinging the upright piece of the swinging frame forward and pressing the roving bobbin against the flocking belt via the pressing wheel, the roving bobbin will be rotated by the running of the flocking belt. The remaining rovings on the roving bobbin are then continuously unwound and carried away by the flocking belt and can be easily removed. On the other hand, the comb wheel can quickly scrape off and remove the remaining rovings on the flocked belt and dispose of the rovings.

In the swing frame, the upright piece swings back and forth by a step cam that reciprocates horizontally and a pulley that is disposed at the tip of the horizontal piece and rolls inside the step cam. The drive source for the cam can easily be used as the drive source for the flocking belt or the comb wheel in the longitudinal direction, if necessary.

Example Examples will be described below with reference to the drawings.

The remaining roving removal device for the roving bobbin removes the roving bobbins 1, 1 suspended in a line from the bobbin conveying device 10.
It is equipped with a flocking belt 21 running parallel to..., a comb wheel 31 provided on the back side of the flocking belt 21, and a swinging frame 40 facing the flocking belt 21 with the roving bobbins 1, 1... in between. (Fig. 1, 2
), the flocking belt 21 and the comb wheel 31 are integrally mounted on a slide base (not shown) driven by an air cylinder 44.

The roving bobbin 1 has collars 1a and 1b fitted to both ends of a bobbin tube 1c, and a states king cloth 2 is annularly attached to a part of the circumference of the bobbin tube 1c. States King Cross 2
are countless elastic hairs 2b, 2b on the base fabric 2a.
After planting ... (Fig. 6), these hairs 2b, 2b,
It is laid down in the circumferential direction of the roving bobbin 1, and is used to fix the winding start when winding the roving in a roving machine. Therefore, the remaining roving yarn S on the roving bobbin 1 is wound in the direction opposite to the direction in which the hairs 2b, 2b... of the states king cloth 2 are laid down, that is, in the direction of the arrow in FIG. It turns out.

The bobbin transfer device 10 includes wheels 12, 12 that roll within a rail 11 having a substantially gate-shaped cross section that is attached to the lower surface of the ceiling of a building, and a bobbin hanger 13 that hangs down from the axle 12a (FIG. 2). 13, the roving bobbin 1 can be hung rotatably. The bobbin conveying device 10 as a whole is constructed by connecting a large number of the above-mentioned units into a chain, and is capable of continuously conveying the roving bobbins 1, 1, . . . from a spinning frame to a roving frame. Further, the bobbin hanger 13 is assumed to be capable of freely attaching and detaching the suspended roving bobbin 1 and tilting the bobbin hanger 13 .

The flocked belt 21 has belt wheels 22, 22 at both ends.
It is an endless belt stretched by (the first
), one side of which is a roving bobbin 1 being suspended and being conveyed by a bobbin conveying device 10,
1 is running parallel to... The width of the flocking belt 21 is somewhat shorter than the entire length of the bobbin tube 1c of the roving bobbin 1, and its running position is between the collars 1a and 1.
It is in the middle of b. In addition, the belt wheels 22, 2
2 can be adjusted by an air cylinder (not shown), and the tension of the flocked belt 21 can be adjusted appropriately.

The flocked belt 21 has countless elastic hairs 21b, 21b... planted on the surface of a base fabric 21a (Figs. 5 and 6), and the hairs 21b, 21b... are placed in the running direction of the flocked belt 21. The base fabric 21a also serves as a flat belt that is stretched over the surfaces of the belt pulleys 22, 22.

A comb wheel 31 housed in a hood 32 is disposed on the back side of the flocking belt 21, that is, on the side opposite to the side in contact with the roving bobbins 1, 1, . . . (FIG. 1). The comb wheel 31 has a plurality of comb plates 31b, 31b, . . . erected in the generatrix direction of a rotating cylinder 31a (Fig. 3). The flocked belt 21 is combed so as to comb the hairs 21b, 21b... on the surface of the belt 21 from the back side thereof, and at a circumferential speed faster than the traveling speed of the flocked belt 21.
It rotates in the direction of travel (Fig. 1).

A hood 32 surrounding the comb wheel 31 is connected to a fiber opening duct 32a, and its interior is kept under negative pressure by a suction fan (not shown).
On the other hand, the fiber-spreading duct 32a includes a fiber-spreading duct 32a.
Providing light emitting/receiving devices 32b and 32c with optical axes that cross the
The presence or absence of a flow of residual roving waste passing through the opening duct 32a is detected.

A series of members such as the flocking belt 21 and its drive system including the belt wheels 22 and 22, the comb wheel 31 and its drive system, and the hood 32 are mounted on a slide base (not shown), and are mounted on an air cylinder 44. Therefore, the roving bobbins 1, 1... can be moved back and forth in a direction perpendicular to the traveling direction (the second
(double-dashed line in the figure).

Pressing wheels 41, 41... are arranged in a row at positions facing the flocking belt 21 across the roving bobbins 1, 1..., which are rotatably mounted on the swing frame 40. (Fig. 1, 2
figure).

The swing frame 40 includes an upright piece 40a and a horizontal piece 4.
It is an L-shaped frame consisting of 0b, and the whole can swing back and forth around a lower swing shaft 42. That is, a pulley 43 is pivotally attached to the tip of the horizontal piece 40b, and a step cam 45 is attached to a slide base (not shown) that is driven back and forth by an air cylinder 44. However, it is assumed that the pulley 43 rolls within the stepped cam 45. When the stepped cam 45 is horizontally reciprocated by the air cylinder 44, the height position of the pulley 43 changes (solid line and two-dot chain line in FIG. 2), so the tip of the horizontal piece 40b is supported by the pillow block 42a. Swing axis 4
2, whereby the upright piece 40
A swings back and forth.

The pressing wheels 41, 41, .
When the upright piece 40a is erected at a substantially vertical position, the pressing wheels 41, 41... push the flanges 1a, 1b, and therefore the roving bobbin 1 , 1... are pressed against the surface of the flocked belt 21.
At this time, for one roving bobbin 1, two
Each pressing wheel 41, 41, . . . is adapted to act (FIG. 1).

The roving bobbins 1, 1 facing the flocking belt 21...
The number is arbitrary and can be appropriately selected depending on the length of the flocked belt 21.

At the midpoint of each roving bobbin 1, 1..., at a height position substantially opposite to the lower collar 1b of the roving bobbin 1,
A stopper 4 that regulates the runout of the roving bobbins 1, 1...
6, 46... project from the swinging frame 40 (FIGS. 1 and 2), and on the back side of the flocked belt 21, there are belt supports 23, 23... having a length spanning the entire width of the flocked belt 21. It is arranged.

Air nozzles 47, 47, . . . are further provided diagonally and horizontally protruding from the upright piece 40a of the swing frame 40 (FIG. 1). Its position in the height direction corresponds to the States King cloth 2 attached to each roving bobbin 1 (Fig. 2), and its tip is
It is assumed that the roving is oriented in a direction that substantially coincides with the tangent to the roving bobbin 1 (FIG. 6). A nozzle hole 47a is bored at the tip of the air nozzle 47, and air guided from a compressed air source (not shown) flows through the nozzle hole 47a.
The water is ejected from behind the hairs 2b, 2b, . . . on the surface of the states king cloth 2.

At the upper part of the bobbin conveying device 10, a drive piece 14 is located approximately midway between the rail 11 and the bobbin hanger 13.
is attached (Figure 2). The drive piece 14 is
They are provided at each intermediate position of the roving bobbins 1, 1, . Wheel 1 in rail 11
2 and 12 roll, and the roving bobbins 1, 1, . . . can be conveyed all at once.

A spline shaft 53 is rotatably installed on a frame 52 provided on a fixed frame 51 above the swing frame 40 (FIG. 2).
3 is driven by an air cylinder 54 via link pieces 53a and 53b. On the other hand, an engaging piece 55 is provided on the spline shaft 53 and is fitted so as to be able to slide freely in the axial direction. It is possible to take it on and take it off. Furthermore, the engagement piece 55 is connected to the tip of the piston rod 56a of the air cylinder 56 fixed to one end of the frame 52 (the fourth
), it can slide on the spline shaft 53 and move left and right according to its expansion and contraction. The stroke of the air cylinder 56 is adjusted to the number of roving bobbins 1, 1... facing the flocked belt 21, and its movement brings a predetermined number of roving bobbins 1, 1... into a contact position with the flocked belt 21. It is ready to be transported.

The operation of the residual roving removing device having such a configuration is as follows.

The power to each motor (not shown) is turned on, and the flocking belt 21 and the comb wheel 31 are driven in the directions of the arrows in FIG. 1, respectively. With the rod in the shortened position, the air cylinder 44 moves back the flocking belt 21, comb wheel 31, etc. mounted on the slide base, tilts the swinging frame 40 backward, and moves the roving bobbins 1, 1... to the loading position. Ensure a wide space on both sides (double-dashed line in Figure 2).

When the rod of the air cylinder 54 is extended, the spline shaft 53 rotates via the link pieces 53a and 53b, and the engagement piece 55 engages with the drive piece 14 of the bobbin conveying device 10 (as shown by the solid line in FIG. 2). Figure 4),
In this state, when the rod 56a of the air cylinder 56 is extended and the bobbin conveying device 10 is advanced, the roving bobbins 1, 1... suspended from the bobbin hanger 13 are carried to the position of the flocking belt 21. . The stopping position is such that each roving bobbin 1, 1...
3. The position is located at each intermediate position.

Next, the air cylinder 44 is operated to move the flocking belt 21, comb wheel 31, etc. forward together, and to raise the swing frame 40 forward. As a result, the pressing wheels 41, 41... provided on the swinging frame 40 form a pair of upper and lower pressing wheels 41, 41, etc., and push the flanges 1a, 1b of each roving bobbin 1 in the direction of the flocked belt 21 (see Fig. 1). ), the flocked belt 21 moves forward at the same time, so the roving bobbins 1, 1, . . . become sandwiched between the swing frame 40 and the flocked belt 21. At this time, the relative positions of the respective roving bobbins 1 are finely adjusted by the pressing wheels 41, 41, . . . , and the peripheral wall of the bobbin tube 1c is pressed against the flocked belt 21. Since the flocking belt 21 is running, the roving bobbins 1, 1, . (in the direction of the arrow in Figure 5),
The remaining rovings S wound around the surface of the rovings are plucked off by the hairs 21b, 21b, . . . on the flocked belt 21 and carried away in the running direction of the flocked belt 21.

Here, the winding direction of the remaining roving yarn S on the roving bobbin 1 is the hairs 2b, 2b, . . . of the states king cloth 2.
Since the direction in which the roving yarn S is laid corresponds to the direction of the arrow in FIG. Therefore, even if the remaining rovings S are formed in multiple layers on the roving bobbin 1, the remaining rovings S can be removed extremely smoothly.

A multilayer of residual roving S remains on the roving bobbin 1, and when this is removed by unwinding,
The apparent outer diameter of the roving bobbin 1 decreases as the remaining roving yarn S decreases. At this time, the swing frame 4
As long as the pulley 43 of No. 0 is on the slope of the step cam 45 and the air cylinder 44 has not reached its forward end, the air cylinder 44 stands up the swing frame 40 and at the same time moves the flocked belt 21 forward. Even when the apparent outer diameter of the roving bobbin 1 decreases, the force continues to be applied to the roving bobbin 1.
There is no risk that the hair will separate from the flocked belt 21. This also applies when the apparent outer diameters of the roving bobbins 1, 1, etc. in contact with the flocking belt 21 are uneven.
As the removal of the remaining rovings S starts and the outer diameter thereof decreases, those with smaller diameters are sequentially removed from the flocked belt 21.
Finally, the removal of the remaining rovings S from all the roving bobbins 1, 1, . . . is completed.

In this way, when pressing the roving bobbins 1, 1, .
The pressing force applied to 1... is caused by the pulley 43
As long as it is on the slope 5, it can be optimally adjusted and set by adjusting the output of the air cylinder 44. Generally, if the pressing force against the roving bobbins 1, 1 is made strong, the rotation of the roving bobbins 1, 1 becomes stable, but the bristles 21b of the flocking belt 21,
21b... falls down, and there is a tendency for the ability to remove the remaining rovings S to deteriorate. Moreover, if the pressing force is insufficient, smooth rotation of the roving bobbins 1, 1, etc. cannot be obtained. Note that the step cam 45 moves forward greatly,
When the pulley 43 enters the lower parallel part of the stepped cam 45 (solid line in FIG. 2), the driven frame 40 does not swing any further, and therefore the roving bobbins 1, 1... are flocked. There is no risk of being excessively pressed against the belt 21.

Furthermore, since belt supports 23, 23... are arranged on the back side of the flocked belt 21, the roving bobbin 1 pressed against the flocked belt 21 is made between the adjacent belt supports 23, 23. It rotates in the depression caused by the deflection of the flocked belt 21, contributing to maintaining stable contact between the flocked belt 21 and the roving bobbin 1. The amount of deflection of the flocking belt 21 at that time can be optimally adjusted by the elasticity of the flocking belt 21 and the tension adjustment function by an air cylinder (not shown).

Through this process, the remaining roving yarn S on the roving bobbin 1
Even if almost all of the rovings have been unwound and removed, fiber waste separated from the remaining rovings S is usually attached to the surface of the States King cloth 2, and this is caused by the States King cloth 2. This is because the hairs 2b, 2b, . Therefore, when air is ejected from the air nozzles 47, 47... from behind the bristles 2b, 2b... laid down in the circumferential direction of the bobbin tube 1c, the air jets blow the fibers adhering thereto. 2b, 2b... (Fig. 6).
This fiber waste can be blown away very easily. The blown fiber waste flies in the air, adheres to the flocking belt 21, and is carried away.

A mixture of residual rovings S and fiber waste (hereinafter referred to as spread waste) that adheres to the surface of the flocked belt 21 and is carried away is caused by the running of the flocked belt 21.
When it is carried to a position where it contacts the comb wheel 31 on the back side (FIG. 1), it is scraped off by the comb plates 31b, 31b, . . . . Since the circumferential speed of the comb wheel 31 is faster than the running speed of the flocking belt 21, the comb plate 31
The sawtooth 31c of b is the hair 2 on the surface of the flocked belt 21.
1b, 21b... from behind, and therefore the spread debris adhering thereto can be scraped off very smoothly.

The opening waste scraped off by the comb wheel 31 is transferred to the opening duct 3 by a suction fan (not shown).
2a, it is conveyed to a fiber opening box (not shown) and stored there. Here, the opening duct 32
In a, a light emitter/receiver 32 that detects the flow of opening waste is provided.
Since the roving bobbins 1 and 32c are arranged, the roving bobbin 1,
1... It is possible to know that the removal of the upper remaining roving S has been completed.

Once the remaining rovings S of all the roving bobbins 1, 1... have been removed, the air cylinder 44 is operated to move the flocking belt 21 etc. backward, the swinging frame 40 is tilted backward, and the pressing wheels 41, 41... and the flocking belt 21 are released from the roving bobbins 1, 1....

Next, the engagement piece 55 is moved by the air cylinder 54.
The engaging piece 55 is moved to the upstream side of the bobbin conveying device 10 by disengaging the rod 56a of the air cylinder 56, and then the air cylinder 54 moves the engaging piece 55 to the upstream side of the bobbin conveying device 10. The engagement piece 55 is engaged with the drive piece 14 again. Here, the drive piece 14 that newly engages with the engagement piece 55 is stronger than the drive piece 14 that was previously engaged with the roving bobbin 1, 1.
Since it is upstream by a predetermined number of...
When the rod 56a of the air cylinder 56 is extended in this state, the bobbin conveying device 10 is driven, and the roving bobbins 1, 1...
At the same time that the roving bobbins 1, 1,...
The operation for removing the remaining rovings S can be repeated and continued.

In the above explanation, the air nozzles 47, 47...
is provided to blow away the opening waste adhering to the States King cloth 2 in the final stage of the removal work of the remaining roving S, so the States King cloth 2 is used as a method for fixing the beginning of winding of the roving. If not used, it does not necessarily have to be provided.

Further, although the flocking belt 21, the comb wheel 31, etc. are mounted on a slide base that is moved back and forth by the air cylinder 44, it is also possible to install them on a fixed frame instead. In other words, when the amount of the remaining roving threads S on the roving bobbins 1, 1... is regulated in advance so as not to exceed a certain level, the amount of the remaining roving threads S on the roving bobbins 1, 1... comes into contact with the outer surface of the remaining roving threads S on the roving bobbins 1, 1... Even if the flocking belt 21 is fixedly disposed in a position where the flocking belt 21 is not fixed, the roving bobbins 1, 1, etc. suspended from the bobbin hanger 13 are pressed against the flocking belt 21 by the swinging of the swinging frame 40. In this case, since the slide base can be omitted, the overall structure can be further simplified. However, even in this case, the swing frame 4 is made up of the air cylinder 44 and the step cam 45.
Operation 0 cannot be omitted.

Furthermore, in this embodiment, the bobbin conveying device 10
As a mechanism for driving the roving bobbins 1, 1, .
5 and a driving air cylinder 56,
Instead of these, for example, the bobbin conveying device 10
Of course, the entire device may be driven by pulling it at the front end of the device.

In addition, the roving bobbin 1 by the air cylinder 56,
After carrying in the roving bobbins 1, 1, . Release the air cylinder 56
Shorten the rod 56a of the next roving bobbin 1,
At the engagement position for carrying in the drive piece 1...
The operating order of the air cylinders 44, 54, and 56 may be determined so that the engagement operation between the air cylinders 4 and the engagement piece 55 is completed. By doing this,
Since the loss time when driving the bobbin conveying device 10 can be minimized, and at least one of the roving bobbins 1, 1... and the bobbin conveying device 10 is always restrained, There is no risk of inconvenience caused by positional deviation due to vibration or the like.

Effects of the Invention As explained above, according to the present invention, the flocking belt running parallel to the bobbin conveying device and the pressing wheel attached to the swinging frame are connected to the bobbin hanger of the bobbin conveying device. By sandwiching a plurality of roving bobbins that remain lowered, the roving bobbins are rotated by the running of the flocking belt, so that the remaining roving on the roving bobbins can be efficiently unwound and removed. In addition, the opening waste that adheres to the flocking belt and is carried away can be continuously scraped off by the comb wheel.
By installing it in the middle of the bobbin conveying device, it is possible to efficiently remove the remaining roving from the roving bobbin.Furthermore, there is no need for a drive roller or a drive motor to rotate the roving bobbin, and the back and forth movement of the flocking belt is Since it can be easily used as a drive source for driving the swinging frame, there is an extremely excellent effect that the entire structure can be significantly simplified and downsized.

[Brief explanation of the drawing]

Figures 1 to 6 show an embodiment, where Figure 1 is a plan view of the main part, Figure 2 is a side view of the main part, and Figure 3A is an enlarged view taken along the line X--X of Figure 1. Diagram B is Y in diagram A
-Y line arrow sectional view, Figure 4 is an arrow Z enlarged view of Figure 2, Figures 5 and 6 are respectively Z ₁ - Z ₁ of Figure 2
It is an enlarged sectional view taken along the line _Z2 - _Z2 . 1...Roughing bobbin, 2...States King cloth, 13...Bobbin hanger, 21...Flocked belt, 21a...Base fabric, 21b...Hair, 31...Comb wheel, 31c...Comb, 40... Swing frame, 40a... Standing piece, 40b... Horizontal piece, 41
... Pressing wheel, 42 ... Swing shaft, 43 ... Pulley,
45... Stage cam, 47... Air nozzle.

Claims (1)

[Scope of Claims] 1. A flocking belt that is rotatably suspended from a bobbin hanger and runs parallel to a plurality of roving bobbins being conveyed, and a rocker that presses the roving bobbins against the flocking belt via a pressing wheel. a comb wheel that rotates at a circumferential speed greater than the running speed of the flocking belt while the tip of the comb is in contact with the flocking belt; A pulley provided at the tip of the horizontal piece rolls in a stepped cam that reciprocates horizontally, thereby causing the upright piece to swing back and forth around a swing axis. Features: Remaining roving removal device for roving bobbin. 2. A patent characterized in that the flocking belt and the comb wheel move forward together in synchronization with the upright movement of the swinging frame so that the roving bobbin is sandwiched between the swinging frame and the flocking belt. A residual roving removal device for a roving bobbin according to claim 1. 3. The remaining roving of the roving bobbin according to claim 1 or 2, wherein the swing frame is provided with an air nozzle that faces in the tangential direction of the states king cloth attached to the roving bobbin. removal device.