JPH0437912Y2 - - Google Patents

Description

[Detailed description of the invention] Purpose of the invention (industrial application field) This invention relates to a roller part cleaning device for spinning machines such as roving frames and spinning machines.

(Prior Art) In this type of spinning machine, fluff generated in the roller part due to the draft action is deposited on each member constituting the draft part. Since this accumulated fluff aggregates into clumps and is entrained in the passing sliver, it degrades the quality of the spun yarn, so various devices have been proposed for cleaning the roller part. For example, Japanese Utility Model Application Publication No. 49-7233 discloses a cleaning device in which a blowpipe for blowing off fluff is provided on the bottom roller side of a roller part, and a blowpipe for sucking the fluff blown away is provided on the top roller side. ing.
Further, Japanese Utility Model Publication No. 57-38383 discloses a cleaning device in which blow pipes for blowing off fluff are provided on both the bottom roller side and the top roller side of the roller part.

(Problem to be solved by the invention) However, in the conventional device, compressed gas is simultaneously injected from all the blow pipes installed on the spinning machine stand, so the amount of compressed gas blown out from each roller part is different. The strength is weak, and in order to improve the cleaning effect, the capacity of the compressed gas source must be increased or an air outlet must be provided very close to the area to be cleaned, resulting in a plurality of structures. In recent years, the above-mentioned problem has become more prominent due to the multiple spindles of spinning machines.

Structure of the invention (means for solving the problems) In order to solve the above problems, this invention includes a blow hole above the roller part of a spinning machine having multiple spindles, which injects gas toward the roller part. The blowpipe is divided into a plurality of parts and arranged along the longitudinal direction of the spinning machine frame, and is equipped with an input port connected to a compressed gas source, and multiple output ports are provided by rotation of a distribution board driven by a motor. Each output port of a rotary valve that can be sequentially switched into communication with the input port was connected to each blowpipe by a pipe.

(Function) In this invention, compressed gas is supplied to the blowpipe arranged above each roller part through a rotary valve. When the distribution board of the rotary valve rotates, the output ports connected to the blowpipes are sequentially brought into communication with the input ports connected to the compressed gas source, and compressed gas is sequentially injected from each blowpipe toward the roller part.

(Example) An example in which this invention is embodied in a roving frame will be described below with reference to the drawings. A known draft device 3 is disposed on the roller beam 2 of the roving frame frame 1, as shown in FIG. The roller part of the draft device 3 includes bottom rollers 4a to 4d and top rollers 5a to 5d.
On the other hand, top rollers 5a to 5d are disposed in a state where they are pressed and biased by a weighting arm 6. A clear lacross 8a of the bottom clear collar 7, a clear lacross 8a of the top clear collar 9, and a clear lacross 8b of the top clear collar 9 circulate in pressure contact with the surface of the fiber regulating portion of each of the rollers 4a to 4d, 5a to 5d, and clean each roller. I'm starting to do it.

Topkuriyara 9 is composed of 1 staff and 4 weights in 1 unit, and has a blowpipe 10 that also serves as a cross guide bar.
are arranged obliquely above the front top roller 5a along the longitudinal direction of the roving frame frame 1 at a ratio of one for each four spindles. A plurality of blowholes 10a are formed in each blowpipe 10 so as to inject a jet of air obliquely to the running surface of the sliver. A compressed gas inlet 11 is formed at an appropriate position in the blowhole 10, and a rotary valve 12 and a solenoid valve 13 are connected to a compressed gas source such as a compressor (not shown) in the inlet 11.
One end of a connecting pipe 14 connected via the connecting pipe 14 is connected.

As shown in FIGS. 3 and 4, the rotary valve 2 has a housing 15 formed of a bottomed cylindrical case 15a and a lid 15b, and a reducer with a reducer fixed to the outer surface of the case 15a. A distribution board 17 fitted to the output shaft 16 of the motor M so as to be integrally rotatable therein is slidably housed. A groove 19 forming a communication hole 18 together with the inner surface of the case 15a is formed on the outer peripheral surface of the distribution board 17, and a communication hole 20 extending toward the center of the distribution board 17 is formed in the bottom surface of the groove 19. Also,
O is installed on both sides of the distribution board 17 near the outer periphery to maintain airtightness.
The rings 21a and 21b are attached, and communication holes 22 and 23 communicating with the conduction hole 20 are formed on the lid 15b side. An input port 24 communicating with the communication hole 18 is formed on the outer peripheral wall of the case 15a of the housing 15.
One end is connected to a compressed gas source and a solenoid valve 1 is connected in the middle.
A connecting pipe 25 having three pipes is connected. The lid 15b of the housing 15 has the communication hole 22,
A large number of output ports 26 are formed in a staggered manner at positions where they can communicate with each output port 23, and each output port 26 is connected to the other end of a connecting pipe 14 whose one end is branched and connected to two adjacent blow pipes 10. has been done. Further, a proximity switch 27 is attached to the case 15a, and an iron piece 2 is mounted on the outer surface of the distribution panel 17 on the case 15a side at a position compatible with the proximity switch 27.
8 are buried. Furthermore, an air suction device 29 is disposed at the lower rear of the draft device 3.

Next, the operation of the apparatus configured as described above will be explained. The solenoid valve 13 disposed between each rotary valve 12 and the compressed gas source is always kept closed as shown in FIG. The solenoid valve 13 is activated when the machine stops full or at a predetermined setting and is held in the open state as shown in FIG.
4. The compressed gas is supplied to some of the blowholes 10 through the communication holes 18, the conduction holes 20, the communication holes 22, the output ports 26, and the connection pipes 14, and is injected from the blowholes 10a of the blowholes 10. The compressed gas injected from the blowhole 10a is sent to a condenser, a sliver guide,
Blow away the fluff adhering to the collector, roller neck, etc. The blown fluff is removed by air suction device 2.
It is removed by suction by the suction action of 9. In addition, a part of the compressed gas blown out from the blowhole 10a hits a roller or the like and heads upward, scattering and falling the fluff accumulated on the upper surface of the weighting arm 6 and inside the top clear collar 9. The air is removed by suction by the air suction device 29. Solenoid valve 13
Similarly to the activation signal, the motor M of the rotary valve 12 is started and the distribution board 17 is rotationally driven. As a result, each output port 26 is sequentially connected to the communication holes 22 and 23.
The air is compressed through the connecting pipe 14 connected to the output port 26 which is in communication with the communication holes 22 and 23, and then to another part of the blower pipe 10 connected to the connecting pipe 14 in the same manner as described above. Gas is supplied. When each distribution board 17 rotates once and the iron piece 28 becomes in a state corresponding to the proximity switch 27, the detection signal causes the motor M to stop and the solenoid valve 1
3 is activated and held in the closed state.

The time during which each output port 26 is in communication with the communication holes 22 and 23 when the distribution board 17 is rotated by the drive of the motor M, that is, the time during which compressed air is supplied to the blowpipe 10, varies depending on the rotational speed of the motor M.
In this embodiment, each output port 26 is set to be in communication with the communication holes 22 and 23 for 5 to 10 seconds. In addition, there is one Rovering machine with multiple machines attached.
Instead of stopping all machines at the same time, the full pipes are stopped sequentially at predetermined time intervals, and the solenoid valves 13 and rotary valves 12 provided in each roving frame frame 1 are also sequentially operated.

Note that this invention is not limited to the above-mentioned embodiments, and for example, instead of using the cross guide bar of the top clear rear 9 as a blow pipe, a blow pipe independent of the cross guide bar may be provided.
Instead of using two blowpipes 10 as a set, they may be connected to the output port 26 either individually or in multiple sets. Further, the rotary valve 12 may be directly connected to the compressed gas source without providing the electromagnetic valve 13 between the rotary valve 12 and the compressed gas source. In this case, when the motor M is stopped, the starting point which is in communication with the input port 24 is blinded, and leakage of compressed gas can be prevented even when the rotary valve 12 is stopped. Furthermore, it may be applied to a spinning frame instead of a roving frame.

Effects of the invention As detailed above, according to this invention, compressed gas is injected sequentially toward the roller part from the blowpipe divided into multiple parts, so that the compressed gas injected from each blowpipe is the compressed gas source. Even if the capacity of the blower is small, it has enough power to blow away the fluff accumulated on the roller part, and the roller part can be reliably cleaned, and the injection of compressed gas from each blowpipe can be switched by a rotary valve. This eliminates the need for a sequencer or the like compared to control using a solenoid valve, resulting in an excellent effect of simpler structure and lower cost.

[Brief explanation of the drawing]

Figures 1 to 5 show an embodiment embodying this invention; Figure 1 is a schematic diagram, Figure 2 is a side sectional view of the draft device, Figure 3 is a front view of the rotary valve, and Figure 3 is a front view of the rotary valve. Figure 4 is a sectional view taken along line A-A in Figure 3, and Figure 5
Figures a and b are schematic diagrams showing the effect. Rover frame 1, draft device 3, top clearer 9, blowpipe 10, rotary valve 12, distribution board 16, input port 24, output port 26, connecting pipes 14, 25, motor M.

Claims (1)

[Scope of utility model registration request] Above the roller part of a spinning machine with multiple spindles,
A blowpipe with blowholes that inject gas toward the roller part is divided into multiple parts and arranged along the longitudinal direction of the spinning machine table, equipped with an input port connected to a compressed gas source, and driven by a motor. A roller part cleaning device for a spinning machine, in which each output port of a rotary valve is connected to each of the blow pipes by a pipe, and a plurality of output ports can be sequentially switched to a communication state with the input port by rotation of a distribution board.