JPH0545076U - A device to prevent cotton clogging on the side of the rotating cylinder of the card - Google Patents

Abstract

(57) [Summary] [Structure] The cylinder shaft 16 is provided with a supply path 17 for supplying compressed air to the inside of the cylinder 3 by connecting one to the compressed air source P and the other opening to the inside of the cylinder 3. A communication passage 2 for communicating the inside of the cylinder 3 with the side plate 4 and a slight gap S between the cylinder side plate 4 and the cylinder bend 5.
0 was drilled. [Effect] The fibers are prevented from entering a slight gap between the cylinder side plate and the cylinder bend.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention relates to a device for preventing cotton clogging on the rotating cylinder side of a card.

[0002]

[Prior Art]

 As shown in FIGS. 1 and 2, in a known card 1, a cylinder bend 5 is mounted on a side frame 2 so as to face a side plate of a cylinder 3 with a slight gap S. The bend 6, the flexible bend 7, and the front concentric bend 8 are continuously attached in an arc shape. Further, a flat 9 supported by a flexible bend 7 is arranged above the cylinder 3, and an under casing 10 is arranged below the cylinder 3, and a cylinder between the flat 9 and the duffer 11 and between the flat 9 and the take-in 12 is provided. A front side seat and a back side seat are arranged around the periphery of the sheet metal 3, respectively.

[0003]

[Problems to be solved by the device]

 As described above, the cylinder 3 of the card is almost covered with the surroundings. Therefore, the airflow generated inside the cover by the rotation of the cylinder 3 flows toward both ends of the cylinder peripheral surface, and the airflow of the cylinder 3 is caused by this airflow. The fibers that have left the pinch between the flat cloth and the cloth of the flat 9 are blown out toward both ends of the cylinder, and these fibers enter between the outer peripheral projection 3a of the cylinder 3 and the flexible bend 7 and are retained by the long-term operation. A small gap S between the cylinder side plate 4 and the cylinder bend 5 or the upper side of the cylinder under casing 10 accumulates on the cylinder to prevent the cylinder 3 from rotating, or in the worst case, friction heat causes cotton to burn and cause a fire. However, there was a problem that regular cleaning was necessary.

[0004]

[Means for Solving the Problems]

 In order to solve the above-mentioned conventional problems, in the present invention, the closing plates are opposed to both side plates of a rotating cylinder such as a cylinder in a card with a slight gap, and compressed air is supplied to the rotating shaft of the rotating cylinder inside the rotating cylinder. Is provided, and a communication passage that connects the inside of the rotation cylinder and the gap is provided in the side plate of the rotation cylinder.

[0005]

[Action]

 During machine operation, compressed air is sent to the inside of the rotating cylinder through the supply path of the rotating shaft of the rotating cylinder, and this air is passed through the communication passage of the rotating cylinder side plate to a small gap between the rotating cylinder side plate and the closing plate. The flow is discharged radially outward from between the outer peripheral projection of the rotating cylinder and the closing plate, and the discharged airflow causes the fibers carried by the airflow flowing in both ends of the rotating cylinder to rotate with the rotating cylinder side plate. It is prevented from entering the slight gap between the closing plates.

[0006]

【Example】

 Next, referring to the drawings, an embodiment in which the rotation circle and the side cotton pad jam prevention device 15 of the present invention is used in the cylinder 3 will be described. The parts described in the prior art have the same configuration as this embodiment. Is omitted. As shown in FIG. 2, a cylinder shaft 16 of the cylinder 3 is rotatably supported at a substantially center of a cylinder bend 5 shown as a closing plate attached to the side frame 2. The cylinder shaft 16 is provided with a supply passage 17 formed of a passage 17a extending in the axial direction from its end surface and a passage 17b intersecting with the passage 17a and extending in the radial direction and opening inside the cylinder 3. Further, the end of the cylinder shaft 16 is rotatably and airtightly supported by a support member 18 integrated with the cylinder bend 5, and a compressed air source P is connected to a center hole 18a provided at the center of the support member 18. ing. The side plate 4 of the cylinder 3 is provided with a plurality of communication passages 20 for communicating the inside of the cylinder 3 with a slight gap S between the cylinder side plate 4 and the cylinder bend 5.

Next, the operation of the cotton-plugging preventing device 15 on the side portion of the rotating cylinder configured as described above will be described. During operation of the machine base, compressed air from the compressed air source P is supplied to the inside of the cylinder 3 via the center hole 18a of the support member 18 and the supply passage 17 of the cylinder shaft 16. Then, the compressed air inside the cylinder 3 flows into a slight gap S between the cylinder side plate 4 and the cylinder bend 5 through the communication passage 20, and the compressed air in the radial direction comes from between the cylinder outer peripheral projection 3 a and the cylinder bend 5. Blow out to the outside. Therefore, the fibers carried by the airflow flowing in both ends of the cylinder 3 generated by the rotation of the cylinder 3 whose periphery is covered by the airflow are prevented from entering the slight gap S between the cylinder side plate 4 and the cylinder bend 5, It is blown to the outside 4 and sucked and recovered by the suction air flow of a cleaning device (not shown), or returned to the circumferential surface of the cylinder 3 and again held between the wire of the cylinder 3 and the clothing of the flat 9. In this embodiment, the device 13 for preventing cotton clogging on the side of the rotating cylinder is used for the cylinder 3, but it may be used for the doffer 11, the take-in roller 12 and the doffing roller (not shown).

[0008]

[Effect of the device]

 As described above, in the device for preventing cotton clogging on the side of the rotating cylinder of the present invention, the closing plates are faced to each other on both side plates of the rotating cylinder such as the cylinder with a slight gap, and the rotating shaft of the rotating cylinder and the inside of the rotating cylinder are covered. Since a supply passage for supplying compressed air is bored and a communication passage that connects the inside of the rotation cylinder and a slight gap between the rotation cylinder side plate and the closing plate is provided in the rotation cylinder side plate, the rotation cylinder's It is possible to prevent the fibers carried by the air flow flowing on both sides of the rotating cylinder due to the rotation from entering the slight gap between the rotating cylinder side plate and the closing plate and accumulating on the rotating cylinder side part, and periodic cleaning of this part can be eliminated.

[Brief description of drawings]

FIG. 1 is a front view of a card.

FIG. 2 is a II-II sectional view in which a part of FIG. 1 is omitted.

FIG. 3 is a side view of a cylinder.

[Explanation of symbols]

3,11 rotating cylinder, 16 rotating shaft of rotating cylinder, S
Gap, 4 rotation cylinder side plates, 17 supply paths, 5 closing plates, 20 communication paths

Claims (1)

[Scope of utility model registration request] 1. A card is provided with a cover plate facing both side plates of a rotary cylinder such as a cylinder with a slight gap, and a rotary shaft of the rotary cylinder is provided with a supply passage for supplying compressed air into the rotary cylinder. A device for preventing cotton clogging on the side of a rotating cylinder of a card, characterized in that the cylindrical side plate is provided with a communication passage that connects the inside of the rotating cylinder and the gap.