JPH0546970U - Nozzle cover in pneumatic spinning device - Google Patents

Abstract

(57) [Abstract] [Purpose] Removing the air spinning nozzle for each spindle without removing the cover that covers the front side of the machine frame of the air spinning device.
An object is to obtain a nozzle cover for a pneumatic spinning device that can be attached. [Constitution] In a cover covering a plurality of weights on the front side of the machine base of an air spinning device, a cover portion covering an immediately upper portion of each weight of an air spinning nozzle is an openable type.
When the trouble that occurs in the air spinning nozzle is solved or when cleaning is performed, the door provided above the air spinning nozzle is opened and closed without removing the entire cover to remove and install the air spinning nozzle.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a nozzle cover in a pneumatic spinning device.

[0002]

[Prior Art]

 As shown in FIG. 3, the current pneumatic spinning device includes a back roller 1, a middle roller 2 mounted with an apron band, a draft device 4 including a front roller 3, and a downstream side of the draft device 4. An air spinning nozzle 5, a delivery roller 6 that sends out the yarn Y spun from the air spinning nozzle 5, a slab catcher 7, and a winding device 8 are provided, and a sliver drawn from a can (not shown) is provided. After passing through the trumpet guide 9, S is drafted by the draft device 4, then twisted by the air spinning nozzle 5, and then traversed by the traverse guide 10 of the winding device 8 via the delivery roller 6 while being packaged. It is wound while forming P. The front side of the machine stand of such an air spinning device is covered with a cover 11 over the entire surface of a plurality of weights, but the cut yarn end on the draft device 4 side is suction-held by a suction nozzle (not shown) to draw the yarn. Due to the introduction into the delivery roller 6, the cover 11 is usually cut out in the yarn running path portion between the yarn outlet 12 of the air spinning nozzle 5 and the delivery roller 6. However, when such a conventional spinning device is used, dust, fiber dust, and other powdery substances in the sliver S are secondarily accumulated in the air spinning nozzle 5 covered by the cover 11 during operation or its peripheral portion. As a result, it causes nozzle clogging, which greatly affects the physical properties of the spun yarn and the efficiency of the machine base.

Therefore, after a plurality of weights covered by one cover 1 are stopped and the cover 1 is removed at regular intervals, the air spinning nozzle 5 is attached, and the air spinning nozzle 5 and its surroundings are attached. I had to clean the dust.

[0004]

SUMMARY OF THE INVENTION The present invention provides a nozzle cover for a spinning device in which the air spinning nozzle can be removed and attached for each spindle without removing the cover that covers the front side of the machine base. To aim.

[0005]

[Means for Solving the Problems]

 In the cover that covers the front side of the machine frame of the air spinning device over multiple weights, the cover portion that covers the portion directly above each weight of the air spinning nozzle is openable.

[0006]

[Action]

 When resolving troubles that occur in the air spinning nozzle, the door installed directly above the air spinning nozzle is opened and closed without removing the entire cover to remove and install the air spinning nozzle.

[0007]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, the pneumatic spinning device to which the cover of the present invention is applied includes a back roller 1, a middle roller 2 mounted with an apron band, and a front roller 3 as in the conventional pneumatic spinning device. Draft device 4, an air spinning nozzle 5 adjacently arranged on the downstream side of the draft device 4, a delivery roller 6 and a slab catcher 7 for delivering the yarn Y spun from the air spinning nozzle 5, and a winding device. 8 and are provided.

As shown in FIG. 2, the air spinning nozzle 5 has a pair of air spinning nozzles 5 a and 5 b which are fitted in the recesses 14 and 15 of the nozzle holder 13 and are arranged side by side with respect to the front roller 3. . Further, concave grooves 16 and 17 are formed in the circumferential direction in the central portions of the air spinning nozzles 5a and 5b.

Reference numeral 18 is a positioning plate disposed between the air spinning nozzles 5a and 5b on the nozzle holder 13 and has a slit 19 extending in the longitudinal direction at the center thereof at both side edges at central symmetrical positions. Is provided with a convex portion that fits into the concave grooves 16 and 17, and the positioning plate 18 is fixed to the nozzle holder 13 by tightening a screw 20 through a slit 19.

Reference numeral 21 denotes a holding plate placed on the upper surfaces of the air-spinning nozzles 5 a and 5 b. The tip of the screw 22 on the holding plate 21 is passed through the slit 19 of the positioning plate 18 and screwed on the nozzle holder 13. By screwing into the holes, the air spinning nozzles 5a, 5b are fixed by pressure from above.

When either or both of the air spinning nozzles 5a and 5b are to be replaced or maintained, the screws 22 are once loosened to remove the holding plate 21, and then the air to be replaced or maintained as it is. Remove the spinning nozzle, insert the convex part of the positioning plate 18 into the concave groove of the new or maintenance air spinning nozzle, place it on the concave part of the nozzle holder 13, and tighten the screw 22 to fix the holding plate 21. The air spinning nozzle can always be positioned at the same distance as before replacement, without having to readjust the distance between the yarn introducing port 23 of the air spinning nozzle and the front roller 3.

The sliver S pulled out from the can (not shown) is passed through the trumpet guide 9, drafted by the drafting device 4, then twisted by the air spinning nozzle 5, and then wound through the delivery roller 6. The package P is wound while being traversed by the traverse guide 10 of the take-up device 8. The front side of the machine stand of such an air spinning device is covered by the entire surface cover 11 over a plurality of weights, and the cutting yarn end on the draft device 5 side is sucked and grasped by a suction nozzle (not shown). Since the yarn is introduced into the delivery roller 6, the cover 11 is cut out at the yarn running portion between the yarn outlet 12 of the air spinning nozzle 5 and the delivery roller 6, and this point is also different from the conventional cover. There is no difference.

In the cover of the present invention, in the cover 11, the portion immediately above the position of the air spinning nozzle 5 for each weight is cut out by a size such that the removal and installation of the air spinning nozzle can be easily carried out, and the portion is closed by the door. The door 24 is covered with 24 so that the door 24 can be freely opened and closed.

The door 24 may be opened and closed by a hinge 25 as shown in the figure, or may be opened and closed by sliding the cover 11 right or left, and the door 24 may be made of transparent plastic. With the above, it is possible to always monitor the state of the air spinning nozzle.

Further, the cutout portion covered with the door 24 is formed as a separate piece even if it is formed continuously with the cutout portion of the cover 11 provided between the yarn outlet 12 and the delivery roller 6. Of course, you can do that.

[0017]

[Effect of the device]

 As described in detail above, the nozzle cover in the pneumatic spinning device of the present invention is a cover that covers the front side of the machine stand of the pneumatic spinning device over a plurality of weights, and covers the portion directly above each weight of the pneumatic spinning nozzle. Since the part is openable, when removing or installing the air spinning nozzle, the door provided on the cover can be opened by removing the cover without removing the entire cover as in the past. Through this, it is possible to easily and quickly remove and attach each of the weights.

[Brief description of drawings]

FIG. 1 is a perspective view of a pneumatic spinning device having a nozzle cover of the present invention.

FIG. 2 is a perspective view showing a mounting structure of a pneumatic spinning nozzle.

FIG. 3 is a perspective view of a pneumatic spinning device including a conventional nozzle cover.

[Explanation of symbols]

 5 Air spinning nozzle 11 Cover 12 Thread outlet 24 Door

Claims (1)

[Scope of utility model registration request] 1. A cover for covering a plurality of weights on a front surface side of a machine base of an air spinning device, wherein a cover portion covering a portion directly above each weight of the air spinning nozzle is openable. Nozzle cover.