JPH01266228A - Device for removing residual roving of roving bobbin - Google Patents

Abstract

PURPOSE:To obtain the subject small-sized device,capable of conveying a roving bobbin by a bobbin carrier along the peripheral side of a rotating drum brush and scraping off the residual roving from brush bristles while rotating a comb wheel at a higher peripheral speed of the rotating drum brush and excellent in residual roving removing effects. CONSTITUTION:A roving bobbin (B) is conveyed by a bobbin carrier 20 along the peripheral side of a rotating drum brush 11 to remove residual roving on the roving bobbin with brush bristles (11d). A comb wheel 12 is rotated at a higher peripheral speed than that of the rotating drum brush to scrape off the residual roving sticking to the brush bristles.

Description

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

Prior Art The roving is wound up in the roving frame, the roving is unwound in the spinning frame, and the roving bobbin is conveyed back and forth between the roving frame and the spinning frame. In this case, it is necessary to go through a step of removing the residual roving remaining on the bobbin. The reason for this is that in order to avoid interruptions in the supply of roving, in spinning machines, a so-called splicing operation is carried out before the roving on the roving bobbin is completely consumed, and the next roving is transferred to the next roving bobbin. The main reason for this is the changeover to the spinning machine, but there are also other reasons for this, such as the discontinuation of the use of roving due to a change in the type of spinning machine, or the inability to unwind the roving for some reason.

The most famous device for efficiently removing residual roving from a roving bobbin with residual roving is one in which the roving bobbin is brought into contact with a running flocked belt (1973- (No. 35150). In this method, a roving bobbin with residual roving is placed on a flocked belt that is wound around a pair of belt pulleys and runs in a substantially horizontal direction, and this roving bobbin is attached to the flocked belt. By forcing the roving bobbin to be conveyed in the opposite direction to the traveling direction of the flocking belt, the roving bobbin is brought into contact with the flocking belt and rotated at the same time.
Since the yarn ends of the remaining rovings are captured by the nap of the flocked belt, the remaining rovings can be continuously unwound and removed from the roving bobbin.

Problem to be Solved by the Invention According to the prior art, since the traveling path of the flocked belt is regulated by a pair of belt pulleys, a circular path around the belt pulleys at both ends,
It is a combination of a long straight path between belt pulleys. At this time, the unwinding action of the remaining roving from the roving bobbin (capturing the end of the remaining roving, hereinafter the same) and the subsequent unwinding action are extremely good in the circular path of the flocked belt. However, there are circumstances in which the situation is not necessarily good in a straight path. Therefore, even if a large machine frame is provided to take a long straight path, the overall residual roving removal effect is
The problem was that it was not necessarily sufficient.

Therefore, in view of the actual state of the prior art, an object of the present invention is to use a rotating drum brush in place of the flocked belt, thereby making it possible to significantly reduce the overall size.
Moreover, it is an object of the present invention to provide a novel residual roving removal device for a roving bobbin that can realize a sufficiently good residual roving removal effect.

Means for Solving the Problems The present invention has a rotating drum brush, a bobbin carrier, and a comb wheel.
The bobbin carrier conveys the roving bobbin along the circumferential side of the rotating drum brush, and the comb wheel rotates at a circumferential speed greater than the circumferential speed of the rotating drum brush while contacting the surface of the rotating drum brush. The gist is:

Note that the bobbin carrier has a part of its travel path consisting of a pair of endless roller chains that mesh with a sprocket coaxial with the rotating drum brush, and a plurality of bobbin carriers arranged in a ladder shape between the roller chains. Furthermore, the bobbin conveying body may have a positioning piece that regulates the position of the roving bobbin in the axial direction of the rotating drum brush.

With this configuration, when the roving bobbin is conveyed along the circumferential side of the rotating drum brush by the bobbin carrier, the brush bristles of the rotating drum brush remove the remaining coarse yarn on the roving bobbin. It is possible to exert an efficient winding and unwinding action on the thread. At this time,
In the section where the roving bobbin and the rotating drum brush come into contact, the conveyance path of the roving bobbin is a circular path in the circumferential direction of the rotating drum brush, so the remaining roving removal efficiency for the roving bobbin is extremely high. In good condition.

On the other hand, if the roller chain forming the bobbin carrier meshes with a sprocket coaxial with the rotating drum brush, the relative positional relationship between the bobbin carrier and the rotating drum brush can be easily maintained appropriately. be.

Further, by attaching a positioning piece to the bobbin carrier, the position of the roving bobbin in the axial direction of the rotating drum brush can also be maintained appropriately.

It works as described above.

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

The remaining roving removal device of the roving bobbin includes a rotating drum brush 11.
, a bobbin carrier 20, and a comb wheel 12 are assembled integrally on a frame F (FIGS. 1 and 2).

Frame F has an untreated roving bobbin BS on its front side.
A bobbin hopper F1 for charging the roving bobbins BSB is provided in a protruding manner, while a discharge shoe IF2 for discharging the processed roving bobbins BSB is formed on the rear side. In addition,
The bobbin hopper F1 is provided with a bottom plate Fla that slopes as low as the bobbin carrier 20.

The rotating drum brush 11 and the comb wheel 12 are horizontally pivoted so as to traverse the frame F, and both are connected to a drive belt lla.

12a, it is rotatably driven by dedicated drive motors 1.1b, 12b. The rotating drum brush 11 is made by planting stiff brush bristles lid on the circumferential side of a large-diameter rotating drum 11C. rotating drum llc
The length in the axial direction is somewhat shorter than the length of the roving bobbin B, and the brush bristle lid is the rotating drum brush 11.
The roving bobbin B should be flocked in a negative pattern or in an appropriate pattern on the circumferential side of the rotating drum LLC so that the roving bobbin B can be in contact with the roving bobbin B over almost the entire circumference. do.

The comb wheel 12 has a plurality of sawtooth combs 12d, 1.2d, . . . erected in the generatrix direction of the rotating drum 12c. The comb wheel 12 is arranged parallel to the rotating drum brush 11, and the tips of the former combs 12d112d...
It is assumed that the rotational speeds of both are set so that the latter rotates while contacting the tips of the bristles 11d on the surface, and the peripheral speed of the former is greater than that of the latter.

The bobbin carrier 20 includes a pair of endless roller chains 2
1.21, bobbin transport bodies 22, 22, formed by bending a plate material into a U-shape, are attached, and the entire body is formed into a ladder shape.

The bobbin carrier 20 includes a sprocket 20 a s 20 a coaxial with the rotating drum brush 11 and a pair of guide sprockets 20 b 120 c, 20 a, only one of which is shown in the figure.
0d and 20e, and travel in a predetermined travel route. However, the guide sprocket 20b is a drive sprocket that transmits the rotation of the drive motor 20g to the bobbin carrier 20 via the drive chain 2Of, and the guide sprockets 20c and 20d are arranged so that the bobbin carrier 20 is located at the innermost part of the bobbin hopper F1. The guide sprocket 20e is also provided so that the bobbin carrier 20 forms an overhang with respect to the discharge chute F2. The sprocket 20 a s 20 a is formed to have a somewhat larger diameter than the outer diameter of the rotating drum brush 11 so that the travel path of the bobbin carrier 20 is a circular path along the circumferential side of the rotating drum brush 11. , rotating drum brush 1
It is free with respect to the -shaft 11e of 1 and can rotate independently of the rotating drum brush 11.

The bobbin conveyors 22, 22... are roller chains 21
．． 21, with an installation interval larger than the maximum diameter of the roving bobbin B (FIGS. 3 to 5). Further, the bobbin carrier 22 has a pair of positioning pieces 22a, 22a protruding from both ends thereof, and screws 22b, 2
2b, it is screwed onto a mounting piece 21b formed by bending a part of the link 21H of the roller chain 21 upward.

Note that the bobbin transport body 22 has positioning pieces 22 .
The total length of the roving bobbin B is determined such that the mutual interval between the yarns 22 and 22 is somewhat longer than the total length of the roving bobbin B.

Of the traveling route of the bobbin carrier 20, the bobbin hopper F
The linear path between the guide sprockets 20C120d that crosses the rotary drum brush 11 and the circular path along the circumferential side of the rotating drum brush 11 include a bobbin guide 23.24a,
24b... are arranged (Fig. 1). However, while the bobbin guide 23 is arranged inside the travel path of the bobbin carrier 20, the bobbin guides 24a, 24b...
are disposed outside of the bobbin carrier 20 so that the roving bobbins B, B, etc. transported by the bobbin carrier 20 will not come off the bobbin transport body 22 due to the rotational force of the bristles 11d of the rotating drum brush 11. It is intended to do so.

A cover F3a is provided to surround approximately half of the comb wheel 12, and the cover F3a is paired with a partition plate F3b to surround the comb wheel 12, and is provided with a cotton collecting section that includes a suction duct F3. is formed. Suction duct F3
is connected to a suction blower (not shown) via a suitable cotton collecting device.

Now, the rotating drum brush 11, the comb wheel 12, and the bobbin carrier 20 are connected to the arrow Kll in FIG.
It is driven in the directions of K12 and K20, and the untreated roving bobbins B and B with the remaining roving are placed in the bobbin hopper F1 of the frame F.
When the roving bobbins BSB, .

In this way, the roving bobbin B taken out and conveyed by the bobbin carrier 20 is transferred to the guide sprocket 2.
When it passes the position 0d, it comes into contact with the rotating drum brush 11 rotating in the direction of the arrow K11, and is forcibly rotated in the direction of the arrow by the brush bristles lid. On the other hand, the brush bristles lid can be entangled with the remaining roving yarn on the roving bobbin B and capture the yarn end, so now the roving bobbin B
If the direction of the roving bobbins B, B, etc. when feeding into the bobbin hopper F1 is determined so that the rotation direction of the roving bobbin B is the same as the direction in which the remaining roving is wound, The yarn is continuously unwound by the brush bristle lid and can be removed from the roving bobbin B. Therefore, the rotational speed of the rotating drum brush 11 and the running speed of the bobbin carrier 20 are appropriately selected, and the roving After winding all of the remaining roving yarn on the yarn bobbin B (if the roving bobbin B and the rotating drum brush 11 are brought into contact with each other for a sufficient period of time, the roving shoe will be discharged to F2). BSB... can be in the state of a bare bobbin from which the entire amount of the remaining roving has been removed.

The remaining roving yarn unwound from the roving bobbin B is brush hair 1.
When the comb wheel 12 is conveyed by the comb wheel 1d to a position where it comes into contact with the comb wheel 12, the combs 12d, 12d, . . .
is scraped off from the brush bristles 11d to become spread cotton. This spread cotton is discharged to the outside by a suction blower through a suction duct F3, and can be collected in a cotton collection device (not shown).

DETAILED DESCRIPTION OF THE INVENTION As described above, the present invention includes a rotating drum brush, a bobbin carrier, and a comb wheel, the bobbin carrier conveying the roving bobbin along the circumferential side of the rotating drum brush, The comb wheel rotates at a higher speed than the circumferential speed of the rotating drum brush to scrape off residual roving attached to the bristles, so that the roving bobbin follows a circular path along the circumferential side of the rotating drum brush. While being conveyed along the path, the remaining rovings come into contact with the rotating drum brush and are subjected to the residual roving removal action by the brush bristles, which improves the remaining roving removal efficiency compared to the conventional technology, which mainly involves contact in a straight path. It has the excellent effect of being able to significantly improve performance.

In addition, unlike a flocked belt, which is wound around a pair of belt pulleys and runs sequentially, rotating drum brushes are not mechanically bent in any way, so the brush bristles do not fall out even after long-term use. It also has the practical effect that it does not get damaged and therefore its durability is significantly better than that of a flocked belt.

[Brief explanation of the drawing]

1 to 5 show an embodiment, FIG. 1 is an explanatory side view of the entire assembly, FIG. 2 is an explanatory front view showing the arrangement of the main parts, FIG. 3 is an explanatory view of the assembly of the main parts of the bobbin carrier, FIG. 4 is a sectional view taken along the line X--X in FIG. 3, and FIG. 5 is a perspective view of a main part of the bobbin conveyor. B... Roving bobbin 11... Rotating drum brush 12... Comb wheel 20... Bobbin carrier 20a... Sprocket 21... Roller chain 22... Bobbin carrier 22a... Positioning piece

Claims (1)

[Scope of Claims] 1) A rotating drum brush, a bobbin carrier that conveys a roving bobbin along the circumferential side of the rotating drum brush, and a bobbin carrier that is in contact with the surface of the rotating drum brush and that is lower than the circumferential speed of the rotating drum brush. A device for removing residual roving from a roving bobbin, comprising a comb wheel that rotates at a high circumferential speed. 2) The bobbin carrier includes a pair of endless roller chains whose running path partially meshes with a sprocket coaxial with the rotating drum brush, and a plurality of bobbin carriers arranged in a ladder shape between the roller chains. A residual roving removal device for a roving bobbin according to claim 1, characterized in that the device comprises: 3) Removing residual roving from a roving bobbin according to claim 2, wherein the bobbin conveyor includes a positioning piece that regulates the position of the roving bobbin in the axial direction of the rotating drum brush. Device.