JPS6220454Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a device for preventing roving from winding around a false twister in a roving frame equipped with an upper supported flyer.

Prior Art and Its Problems Recent roving machines equipped with an upper support type flyer are equipped with a false twister for false twisting made of synthetic rubber or the like on the flyer top 1a of the upper support type flyer 1 that rotates at high speed, as shown in Fig. 1. 2 is inserted into the drafting section 3 through the high-speed rotating false twister 2.
By adding false twist to the roving 5 between the front roller 4 and the flyer top 1a, the roving breakage increases between the front roller 4 of the drafting section 3 and the false twister 2 as the speed of the roving machine increases. This false twister 2 is designed to prevent
In order to rotate at high speed together with the upper support type fryer 1, a gap of about 1 mm to 4 mm is maintained between the top surface 7a of the top cover 7 attached to the top rail supporting the upper support type fryer 1 and the insertion hole 7b, respectively. It is fitted onto the top portion 1a of the flyer.

In addition, in the above-mentioned roving frame, if the roving breaks during its operation, it becomes impossible to wind the roving, and in this state, the fiber bundle continues to be sent out from the front roller 4 of the drafting section 3. roller 4
The roving 5 between the false twister 2 and the false twister 2 hangs down, and the hanging roving 5' blocks the light emitted from the phototube 8A or 8B of the roving breakage stop device to stop the machine. . However, most of the roving breakages in this roving frame occur between the presser 1b of the top support type flyer 1 and the bobbin 9, and when the roving breakage occurs between the top support type flyer 1 and the bobbin 9, the false twister 2 The roving 5 between the front roller 4 and the front roller 4 hangs down onto the top cover 7, and the hanging roving 5' is often caught and wound around the false twister 2 which is rotating at high speed. In this case, the operation of the roving breakage stop device is delayed, so the machine stops stopping after the roving breakage is delayed, and the cut roving ends are scattered by centrifugal force, and the scattered cotton is spread onto the surface of the neighboring bobbin 9. The rovings adhered to the fibers, causing new roving breakage and deteriorating the quality of the rovings. Further, when the roving 5' is wound around the false twister 2, a part of the wound roving 5' enters into the inside through the gap between the false twister 2 and the top cover 7, and forms the outer periphery of the lower part of the false twister 2. wrap around. In this way, when the roving yarn 5' is wound around the false twister 2 on the flyer top part 1a due to the roving yarn breakage, the false twister 2 is removed from the flyer top part 1a and the wrapped roving yarn 5' is removed. The roving splice will be performed, but the roving 5' wrapped around the false twister 2
When removed, the roving 5 is also cut between the false twister 2 and the front roller 4, and the roving with both ends cut remains in the upper supported flyer 1. For this reason, when performing roving splicing, first pull out the roving remaining in the upper supported flyer 1, then move the machine in an inch to pull out the fiber bundle from the front roller 4 of the drafting section 3. The pulled-out fiber bundle is manually twisted, and the roving is passed through the upper support type flyer 1 and connected to the roving end on the bobbin 9 side to perform roving splicing. This took more time than just starting the process, and was a factor in reducing the operating efficiency of the roving machine and increasing the amount of waste cotton.

Outline and Purpose In view of the drawbacks of the conventional technology, the present invention has been developed by fitting a false twister protruding from the top cover to the top of the flyer of an upper support type flyer installed on the top rail of a rover frame, and attaching the false twister to the outer periphery of the false twister. It is characterized by the provision of a stationary ring to prevent wrapping, which eliminates the roving from wrapping around the false twister when the roving breaks, and also allows the machine to stop quickly when the roving breaks, thereby preventing the roving end from being caught. It is an object of the present invention to provide a winding prevention device for a false twister in a roving frame, which can reduce scattering due to centrifugal force, and facilitate splicing of roving yarn when the roving yarn breaks, thereby improving the operating efficiency of the roving frame. be.

Embodiment In FIG. 2, 1 is an upper supported fryer;
Bearing 10 whose upper part is fixed in top rail 6
A gear 11 fixed to the upper part of the gear 11 meshes with a gear 13 on a drive shaft 12 horizontally supported in the top rail 6, and is driven at a predetermined high speed rotation. Further, a false twister 2 for false twisting made of synthetic rubber or the like is fitted onto the outer periphery of the flyer top portion 1a of the upper support flyer 1 through the insertion hole 7b of the top cover 7. 2a is top cover 7
The upper part 2a of the false twister 2 which protrudes from the upper surface 7a and which protrudes from the upper surface 7a of the top cover 7
On the outer periphery of the false twister 2, there is a stationary ring 14 whose inner diameter is slightly larger than the outer diameter of the false twister 2.
is placed or fixed on the upper surface 7a of the top cover 7. This stationary ring 14 is for preventing the roving 5' hanging down to the top cover 7 side from being caught up and wrapped around the high speed rotating false twister 2 when the roving breaks. If the outer shape of the upper part 2a consists of a straight part and a tapered part as shown in FIG. 3, the height may be such that only the lower straight part is bent as shown in the figure. As shown in FIG. 4, when the outer shape of the false twister 2A is straight, the stationary ring 14A is made to have a height comparable to the height of the upper part 2Aa of the false twister 2A as shown. On the other hand, a bobbin guide leg 1c is provided in the center of the upper support type flyer 1, which is inserted into the upper hole of the bobbin 9 and supports the upper part of the bobbin at all times during the entire movement of bobbin forming. Further, a bobbin rail 15 is provided below the top rail 6 that supports the top support type fryer 1, and a bobbin rail 15 that moves up and down for bobbin forming is provided. 16 is arranged, the bobbin wheel 16 meshes with the gear 18 on the drive shaft 17 and is driven at a predetermined high speed rotation, and the lower hole of the bobbin 9 is fitted into the upper part of the bobbin wheel 16,
As a result, the bobbin 9 is supported vertically, and
The roving 5, which is integrated with the bobbin wheel 16 and rotates at a predetermined high speed and is twisted by the upper support type flyer 1 as the bobbin rail 15 moves up and down, is wound in layers and placed on a predetermined bobbin. Shape.
In FIG. 2, 3 is a drafting section, 4 is a front roller of the drafting section 3, and 8A and 8 are
B is the phototube of the roving breakage stopping device.

In this way, the top support type flyer 1 is arranged on the top rail 6, the false twister 2 for false twisting is fitted on the flyer top part 1a of the top support type flyer 1, and the upper part 2 of the false twister 2 is fitted.
In the roving machine of this embodiment, which is provided with a stationary ring 14 for preventing winding around the outer circumference of the roving frame a, if a roving breakage occurs between the bobbin 9 and the presser 1b of the upper supported flyer 1 during operation, the roving will be unwound. The roving 5 between the front roller 4 and the false twister 2 hangs down toward the top cover 7, but since a stationary ring 14 is provided around the outer periphery of the false twister 2 at the top of the flyer, the hanging roving 5 can no longer be removed. The roving thread 5' does not get caught up in the high-speed rotating false twister 2, and while the roving thread 5' hangs down, the light emitted from the phototube 8A or 8B of the roving breakage stop device is blocked and the machine is stopped immediately. do. Therefore, the time for the cut roving ends to fly away due to centrifugal force is shortened, and the amount of flying cotton is reduced. Also, the hanging roving 5' is a false twister 2.
Since the roving thread stays on the top cover 7 without getting caught in the roving thread, the roving thread can be spliced simply by pulling out the cut roving end on the flyer side and connecting it with the roving end on the bobbin side. Operation will resume.

Effects As described above, the present invention has a false twister protruding from the top cover fitted to the top of the flyer of an upper support type flyer installed on the top rail of a roving machine, and a static ring for preventing winding around the outer circumference of the false twister. This eliminates the roving wrapping around the false twister when the roving breaks.
The machine stops quickly when the roving breaks, which reduces the scattering of the roving end due to centrifugal force, and prevents new roving breaks and deterioration of roving quality due to adhesion of scattered cotton. , roving splicing when roving breaks,
Compared to the roving splicing of conventional roving machines, it is extremely simple and the operating efficiency of the roving machine is greatly improved.Furthermore, the amount of waste cotton during the roving splicing is reduced, and the flow of fluff into the top rail is reduced. In addition, the present invention can be implemented by simply installing a simple stationary ring around the outer circumference of the false twister fitted to the top of the flyer of an upper-support type flyer, so it can be applied to existing roving machines. However, it can be easily implemented at a small cost.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing the main parts of a conventional roving frame, Fig. 2 is a sectional view showing the main parts of a roving frame to which the present invention is applied, Fig. 3 is an enlarged view of the top of the flyer, and Fig. 4 is a sectional view of the flyer. It is an enlarged view showing another example of a top part. 1... Upper supported flyer, 2, 2A... False twister, 3... Drafting section, 4... Front roller, 5... Roving, 6... Top rail, 7...
Top cover, 9... Bobbin, 14, 14A...
stationary ring.

Claims (1)

[Scope of utility model registration request] A false twister protruding from the top cover is fitted onto the top of the flyer of an upper support type flyer installed on the top rail of a rolling machine, and a stationary ring for preventing winding is provided around the outer circumference of the false twister. An anti-wrapping device for false twisters in spinning machines.