JPS6216447Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a sliver cutting device used in combination with a spinning machine, particularly a carding machine, a gill, a drawing machine, etc.

For example, in a drawing machine, when sliver is wound into a can to form a full can, this full can must be replaced with a new empty can. For this purpose, devices shown in FIGS. 1 and 2 have been proposed. Note that 1 is a full can and 2 is an empty can. The full can 1 has already been moved to the left from under the coiler wheel 4 by the can moving device 3, and the empty can 2 is placed directly under the coiler wheel 4. is being moved towards.

When replacing the can like this, use the sliver 5
The spinning of the pair of calendar rollers 6,
7 grips the spun sliver 5, while holding the spun sliver 5 at a predetermined position along the exchange movement path of the full can 1.
By holding the sliver 5 wound up in the full can 1 so that it does not move relative to the full can 1, a cutter roller 8 disposed in a direction transverse to the moving path is used to complete the full sliver can. Tension is applied to the sliver 5 connected between the can 1 and the coiler wheel 4 to cut it. The cutter roller 8 is supported to freely rotate around a roller shaft 9 held at a predetermined position, and the sliver group 13 wound into the full can 1 when the full can 1 is moved for replacement. The full can 1 is rotated in the direction 11 corresponding to the exchange movement direction 10 due to the frictional force caused by being pressed by the full can 1 . In order to increase the frictional force with the sliver, a large number of grooves 12 are formed in the circumferential surface of the cutter roller 8 in its axial direction.

According to this device, when the full can 1 moves in the exchanging movement direction 10, the cutter roller 8 moves the sliver group 13 wound onto the full can 1 and the sliver group 13 wound on the full can 1, as shown in FIG. The sliver 5 is rotated in the direction 11 corresponding to the exchange movement direction 10 of the full can 1 due to the contact friction between the sliver 5 and the sliver group 13, so that the sliver 5 wound last is a full sliver. Kens 1
It is expected that the sliver 5 will be moved in the exchange movement direction 10 while being held above, that is, on the sliver group 13, and the sliver 5 will be cut under tension. However, if the frictional resistance between the fibers of the spun sliver is large and the sliver 5 is difficult to break, the sliver 5 will not be held on the sliver group 13 when the full can 1 moves in the exchange movement direction 10. It may be pulled out in the direction of arrow 14, that is, toward the rear of the machine. In such a situation, the can replacement work is completed while the sliver 5 remains connected between the sliver group 13 and the coiler wheel 4.

The present invention was devised in view of the drawbacks of conventional devices, and the third embodiment will be explained below with reference to the drawings.
As shown in the figure, the replacement movement direction 10 of the full can 1
Brackets 16 supporting the shaft 15 are provided at both ends of the shaft 15, and rollers 17 rotating around the shaft 15 are provided. The outer periphery of the roller 17 is covered with a covering material 18 formed of an elastic material such as rubber and provided with a plurality of teeth 19 having a height relative to the tooth width. It is preferable that the covering material 18 and the teeth 19 are integrally molded, but they may also be constructed so that they can be attached and detached, or the teeth 19
may be attached directly to the roller 17 or the shaft 15.

When the full can 1 moves in the exchange movement direction 10 while being pressed upward by the elasticity of the sliver group 13, the teeth 19 are deflected by the pressure and follow in the direction of the arrow 20.

The sliver 5 on the sliver group 13 is pushed against the sliver group 13 in the direction of the arrow 20 by the elastic and bent teeth 19, and is sent by the tips 21 of the teeth 19 as if being pushed out, so the sliver group 13 It cannot be pulled out from above. Moreover, the amount of sliver stored in the full can 1 is relatively small, and the sliver group 1
Even if the upward pressure due to the elasticity of sliver 3 is weak, the deflection of the teeth 19 will only decrease, causing the sliver group 1 to
Since the sliver 5 is sent along with the sliver 3, it can be cut. Furthermore, if a plurality of rollers covered with the toothed elastic body are arranged substantially parallel to the upper surface of the full can 1, the effect will be even better. As shown in FIG. 4, if the tips 21 of the teeth are made uneven in the axial direction, the sliver 5 is prevented from moving in the axial direction, so that the sliver 5 can be cut reliably.

As another embodiment, as shown in FIG. 5, the belt 23 provided with the teeth 19 is hung between the rollers 22 and 22' which are installed in parallel, so that the linear moving part of the belt 23 is almost parallel to the upper surface of the full can 1. Set it up as desired. In the sliver cutting device 24 having this structure, when a full can is exchanged and moved, the belt 23 follows the sliver group 13 almost in parallel, and the sliver 5
Any sliver can be cut from the sliver extruded by the many deflected teeth 19. Note that if the sliver cutting device 24 becomes an obstacle to various operations, it may be configured to be rotatable in the direction of the arrow 25.

Figure 6 shows the embodiment shown in Figure 3 and the practical example shown in Figure 3.
This is an example used in combination with 12808. This embodiment is designed so that it does not obstruct the various operations and passages in the direction of exchange and movement of the full can 1 on the machine stand, so that the sliver can be cut more reliably. Of course, the embodiment shown in FIG. 5 may be combined with the above-mentioned Utility Model Publication No. 49-12808.

According to the present invention, since the sliver 5 is held between the sliver group 13 and sent out using the elasticity of the teeth, even slivers with strong frictional resistance can be reliably cut.

[Brief explanation of drawings]

Figure 1 is a side view of a conventional can exchanger;
The figure is an enlarged side view of the sliver cutting device in the can changing device of FIG. 1, and FIG. 3 is a side view showing an embodiment of the sliver cutting device in the present invention.
FIG. 4 is a partial perspective view showing an embodiment of the sliver cutting device according to the present invention, and FIGS. 5 and 6 are side views of other embodiments according to the present invention.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) Disposed in a direction transverse to the exchange movement path of a full can with sliver wound therein, and in contact with the sliver wound in a full can in a pressing relationship;
A sliver cutting method in which multiple teeth with a height relative to the tooth width are arranged in the axial direction on the circumference of a roller that is rotated in a direction corresponding to the replacement movement direction when a full can can is replaced due to frictional force. A sliver cutting device characterized in that at least the tooth portion is formed of an elastic body such as rubber. (2) The apparatus according to claim 1, wherein a plurality of the rollers are provided, an endless belt is wrapped around the rollers, and a plurality of teeth are arranged on the outer periphery of the belt in the axial direction of the rollers.