JPH07118934A - Apparatus to prevent clogging of cotton in card - Google Patents

Abstract

PURPOSE:To prevent the clogging of cotton between a cylinder side board and a cylinder bend. CONSTITUTION:A cylinder bend 2 is constructed as a disk having almost same diameter as the disc-shaped side board 6 of the cylinder 3. The cylinder bend 2, together with arc bends 12, 13, 15 and a cylinder under-casing 14, forms a closed space 17. The cylinder bend 2 is provided with an air intake hole 21 and a suction hole 22 connected to a suction tube 23 and the other end of the suction tube 23 is connected to a suction source.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for preventing cotton clogging on the cylinder side of a card.

[0002]

2. Description of the Related Art Generally, in a card, there is cotton that is blown out to the side by leaving an air flow toward the end of the cylinder by the rotation of the cylinder and leaving the clamp between the cylinder and the flat. Alternatively, if it accumulates on the portion between the frame and the side surface of the cylinder, strong friction is generated between the cylinder and the machine stand, or the cotton is ignited by frictional heat. As a conventional card aiming at solving such a problem, Jikken Sho 61-7
There is one disclosed in Japanese Laid-Open Patent Publication No. 255-255, in which cylinder bends are attached to the upper surfaces on both sides of the frame so as to rotatably support the cylinders and cover only substantially the upper half of the side surfaces of the cylinders.
On the frame, a window is formed in a portion corresponding to the lower portion of the outer peripheral projection of the cylinder and the cylinder under casing, and a suction box is connected to this window.
A suction port for connecting a pipe connected to the suction source is provided, and an airflow inlet is provided at a position facing the suction port, and the cotton blown to the side of the cylinder by the accompanying airflow generated by the rotation of the cylinder opens the window. The gas is discharged into the suction box via the suction source and is sucked and recovered by the suction airflow generated in the suction box by the action of the suction source. However, in the above-mentioned conventional card, the cylinder bend covers only approximately the upper half of the side surface of the cylinder, and the substantially lower portion of the side surface of the cylinder, in particular, the portion corresponding to the window formed in the frame is not covered at all. , The air flow in the direction of the cylinder end in this part becomes large, and there is a risk that even the good cotton of the cylinder may be blown out.
There was a problem that cotton dust and the like accumulated under the card stand entered from this part.

[0003]

Therefore, in the prior art, the cylinder bend is formed in a disk shape that covers almost the entire side surface of the cylinder, and the end of the cylinder under casing and a plurality of arcuate shapes are formed on the outer circumference of the cylinder bend. Bends are attached continuously, and a closed space is formed by these under-casing and arcuate bends, cylinder side faces and cylinder bends, and cotton blown to the cylinder side end and fly cotton accumulated under the card machine stand. It has been proposed that the cylinder is not fed between the side surface of the cylinder and the bend. However, in reality, a small amount of cotton enters the closed space between the cylinder side surface and the cylinder bend through the slight gap between the cylinder and the arcuate bend and the cylinder under-casing together with the accompanying air flow, and the cotton runs due to the long run of the machine base. There was a problem that clogging occurred.

From the above, the object of the present application is to provide a cylinder bend,
In a card that is formed in a disk shape that covers almost the entire side surface of the cylinder and forms a closed space between the cylinder side surface and the cylinder bend, a small amount of cotton that is blown into this closed space accumulates and causes cotton clogging. The purpose is to provide a card that prevents it from being lost.

[0005]

In order to achieve the above-mentioned problems, in the present application, a cylinder bend for rotatably supporting a cylinder is formed in a disk shape that covers substantially the entire side surface of the cylinder.
In a card designed to form a closed space between the cylinder side surface and the cylinder bend, this cylinder bend
An air intake hole that communicates the closed space with the outside air is formed, and a suction pipe, which has one end connected to a suction source and which generates a suction air flow, is connected to the closed space at a position corresponding to the lower portion of the cylinder. And

[0006]

[Function] Since the closed space is formed between the cylinder side surface and the cylinder bend, cotton blown out toward the cylinder end due to the rotation of the cylinder and dust fly under the card machine stand can enter the closed space. Almost prevented. Further, in the closed space, while the air is taken in through the air intake hole, the suction airflow is generated by the suction pipe. Therefore, the cotton slightly entering the closed space is sucked and collected by the suction pipe.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, referring to the drawings, an embodiment of a cotton jam prevention device for a card will be described. A cylinder 3 is rotatably supported between left and right cylinder bends 2 attached to the side frame 1. The cylinder 3 is constructed by closing the left and right sides of a cylindrical body 5 having a cylinder wire 4 attached to its peripheral surface with disc-shaped side plates 6. A flat group 7 connected in large numbers by chains is rotatably supported above the cylinder 3, and each flat 8 is supported.
The flat needle 9 and the cylinder wire 4 of the cylinder 3 cooperate to exert a carding action on the fiber.

The cylinder bend 2 is formed in a disk shape having substantially the same diameter as the disk side plate 6 of the cylinder 3, and is located inside the cylindrical protrusion 11 of the cylinder 3. At the outer peripheral edge of the cylinder bend 2, there are arcuate front and rear concentric bends 12, 13 and a flexible bend 15 for guiding the flat 8 and a cylinder under casing 14.
Are attached via an attaching device (not shown) so that the ends of the are continuous. Therefore, these arcuate bends 1
The outer circumference of the cylinder bend 2 and the protruding portion 11 of the cylinder 3 are made by 2, 13, 15 and the cylinder under casing 14.
A space between the cylinder-shaped side plate 6 of the cylinder 3 and the cylinder bend 2 is closed, and a closed space 17 is formed.

At a portion slightly above the center of the cylinder bend 2, an air intake hole 21 for communicating the closed space 17 with the outside air.
Are formed. A suction hole 22 is formed in the cylinder bend 2 at a position corresponding to the lower portion of the cylinder 3, and a suction pipe 23 is connected to the suction hole 22. The other end of the suction pipe 23 is a suction source (not shown)
When the card is operated, the suction pipe 23 is introduced into the closed space 17 while the air is taken in through the air intake hole 21.
Due to this, a suction airflow is generated.

Next, the operation of the cotton-jam prevention device in the card constructed as described above will be described. Cotton blown toward the end of the cylinder by the air current generated by the rotation of the cylinder 3 during card operation, and cotton dust accumulated under the machine base of the card are a disk-shaped cylinder bend 2, a substantially arc-shaped bend 12, The entry into the closed space 17 between the side of the cylinder 3 and the cylinder bend 2 is almost prevented by the cylinders 13, 15 and the cylinder under-casing 14. Also,
A small amount of cotton may enter through the arcuate bends 12, 13, 15 and the slight gap between the cylinder under casing 14 and the cylinder bend 2, but a suction airflow is generated in the closed space 17 by the suction pipe 23. As such, the small amount of fine cotton that comes in is sucked and collected. Therefore, cotton or the like does not accumulate between the side of the cylinder 3 and the cylinder bend 2, and it is possible to prevent the cotton clogging.

[0011]

As described above, in the device for preventing cotton clogging in the card of the present application, the cylinder bend is formed with the air intake hole for communicating the closed space with the outside air, and at the position corresponding to the lower portion of the cylinder. Since one end is connected to the suction source and a suction pipe that generates a suction airflow is connected to the closed space, the cotton blown toward the cylinder end due to the rotation of the cylinder and the cotton swab under the card machine stand and the cylinder side and the cylinder. It is almost possible to prevent the cotton from entering between the bends, and the cotton that slightly enters the closed space is sucked and collected by the suction pipe. Therefore, it is possible to prevent cotton clogging from occurring between the cylinder side and the cylinder bend, and the machine stand It is possible to prevent problems such as stoppage and fire.

[Brief description of drawings]

FIG. 1 is an overall view of a card.

FIG. 2 is a sectional view taken along the line II-II with a part of FIG. 1 omitted.

[Explanation of symbols]

2 cylinder bends, 3 cylinders, 17 closed spaces, 21 air intake holes, 23 suction pipes

Claims (1)

[Claims] 1. A card in which a cylinder bend for rotatably supporting a cylinder is formed in a disk shape covering substantially the entire side surface of the cylinder, and a closed space is formed between the cylinder side surface and the cylinder bend. The cylinder bend is formed with an air intake hole that communicates the closed space with the outside air, and a suction pipe whose one end is connected to a suction source at a position corresponding to the lower portion of the cylinder and which generates a suction airflow in the closed space. A device for preventing cotton jams in cards that are connected.