JPS5831404B2 - Carding machine waste removal device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention removes short fibers, contaminants, and other objects that have fallen under the machine stand of a carding machine by using the accompanying airflow generated by the high-speed rotation of the cylinder. This relates to a device for discharging fallen objects to the side.

In conventional carding machines, short fibers, foreign matter, and other debris that have fallen below the machine base are removed by a belt conveyor attached to the bottom of the machine base.
Or, it is carried out of the machine by an appropriate carrying means such as a fan, and the carrying out means is large because it is installed over the entire area under the machine base, and in some cases, the carrying out means is installed at the bottom of the machine base. Therefore, the height of the machine base must be increased, which may result in a lack of stability of the machine base.

In addition, a duct-like air flow convergence passage is provided at the bottom of the cylinder under casing to discharge the accompanying air flow and fallen cotton from the cylinder circumferential surface in a predetermined direction, thereby preventing the falling cotton from accumulating at the bottom of the under casing. However, in this discharge device, the accompanying airflow of the cylinder is discharged from all the gaps in a part of the grid bar, so the discharged airflow is weak and the fallen cotton etc. are collected from the bottom of the cylinder under casing. cannot be completely expelled.

For this reason, a system has also been proposed in which a suction fan is connected to the discharge port and the suction force is used to actively discharge the air. There is a risk of dropping the fibers, and if the suction force is weak, the suction fan cannot be as effective, making it impractical.

In view of the above, the present invention provides a method for discharging short fibers, foreign matter, and other debris that have fallen under the machine stand of a carding machine. Most of the generated accompanying airflow is prevented from advancing by an exhaust port formed between a part of the grid bar of the cylinder under casing and the front cover plate, and is discharged from the exhaust port toward the bottom of the machine, and further, The exhaust airflow is directed to the rear side through the bottom of the machine base, and is blown onto the fallen objects under the machine stand, and the fallen objects are discharged to the rear side of the machine stand. It provides a fallen object removal device,
C
A≦B, and the distance between the front cover plate 7 and the grid bar part 6 is set to B<D to form the exhaust port 9, and a gauge approximately equal to the gauge B is formed on the exhaust port wall surface 5a of the grid bar part 6. It is characterized in that a chamfer 10 is formed in the height, and a guide plate 11 is provided below the exhaust port 9 to direct the exhaust flow toward the rear of the machine.

Hereinafter, embodiments of the present invention will be explained in detail with reference to the drawings.

FIG. 1 shows a first embodiment of the present invention, in which 1 is Tekine;
2 is a cylinder, 3 is a doffer, and that cylinder 2
along the lower circumferential surface of the rear cover plate 4 on the side of the take-in 1;
The gauge of the grid bar part 6, which has a large number of grid pars 5 arranged side by side in the middle part, and the front cover plate 7 on the side of the doffer 3, can be set independently of the gauge of the cylinder 2. A cylinder under casing 8 configured as shown in FIG.

The gauge C (FIG. 4) between the grid bar part 6 and the cylinder 2 is set to be extremely narrow so that the fibers held on the cylinder 2 can pass through.

On the other hand, the gauge A between the front cover plate 7 and the cylinder 2
, B (FIG. 4) is at least 3 times, preferably 4 times, the gauge C of the grid bar part 6 so that air flows in from the tip 7a as the cylinder 2 rotates and a high-speed accompanying airflow is generated. It is set to a wide gauge.

Note that for the gauges A and B of this front cover plate 7, the tip 7a and the lower end 7b may be the same (A=B), but the lower end 7b may be set slightly wider (A<B) to allow air to flow in. It is preferable to facilitate

There is a gap between the front cover plate 7 and the grid bar part 6 whose gauges are set in such a relationship so that most of the high-speed accompanying airflow generated between the cylinder 2 and the front cover plate 7 is discharged downward. Gauge A on the front cover plate.

An exhaust port 9 having a width wider than B is formed.

Also, a grid par 5a forming one wall of this exhaust port 9
At the upper end, a chamfer 1 having a height substantially equal to the gauge B of the lower end 7b of the front cover plate 7 faces the direction of rotation of the cylinder 2.
0 is formed to prevent the fibers on the cylinder 2 from leaving the cylinder 2 and being discharged from the exhaust port 9 with the discharge of the entrainment airflow.

The exhaust port 9 is located below the exhaust port 9 on the side of the doffer 3.
A guide plate 11 having a curved surface is fixedly provided to direct the exhaust airflow discharged downward from the machine base through the lower part of the machine base to the rear side of the machine base (left side in FIG. 1).

On the other hand, a suction nozzle 13 with a suction port 13a opened so as to face the exhaust airflow diverted to the rear side of the machine by the guide plate 11 is installed on the floor surface 12 at the rear of the machine. It is connected to an appropriate dust collector (not shown) via a duct 14.

If the floor surface under the machine is not smooth, it is preferable to install an auxiliary guide plate (not shown) with a smooth surface on the floor surface 12 between the guide plate 11 and the suction nozzle 13.

In the carding machine configured as described above, when the cylinder 2 rotates at high speed in the direction of the arrow, air flows between the cylinder 2 and the front cover plate 7 from the tip 7a of the front cover plate γ, and the front cover plate 7
, and becomes a high-speed accompanying air current.

The high-speed accompanying airflow flows between the front cover plate 7 and the grid par 5a.
When reaching the upper part of the exhaust port 9 that is open between them, the gap between the grid par 6 and the cylinder 2 in front of it is set to an extremely narrow gauge, so most of the gas is blocked from moving forward by the grid par 58 and turns downward. The air is then discharged from the exhaust port 9 toward the bottom of the machine.

When this accompanying airflow is discharged, the fibers on the cylinder 2 passing between the exhaust ports 9 will be lifted up momentarily.
0 is formed, the lifted fibers are guided by this chamfer 10 and immediately returned to the cylinder 2 side, and are not discharged from the discharge port 9.

Furthermore, the high-speed exhaust airflow discharged downward from the exhaust port 9 as described above flows along the inside of the curved surface of the guide plate 11 as shown by the arrow in the figure, and passes through the lower part of the machine base below the cylinder 2. The direction of the flow is changed so that it flows towards the rear of the machine.
It is sprayed onto fallen objects (not shown) such as short fibers and foreign objects that have fallen onto the floor 12 (or an auxiliary guide plate (not shown)) under the machine stand.

Therefore, the fallen objects under the machine base that are blown by the high-speed exhaust airflow are continuously discharged toward the rear side of the machine base as shown by the arrow in the figure, and are sucked by the suction nozzle 13 that opens in front of the machine base. It is housed in a dust collector (not shown) via a duct 14.

Incidentally, in Fig. 4, the rotational speed of the cylinder is 36 Or, p.
, m,, C0,76 demons, B=A=3 pallets, D=13 pallets,
When the chamfer was set to 10 = 3 x 10% and tested with cotton fiber, very good results were obtained.

In the second embodiment shown in FIG. 2, an auxiliary guide plate 15 is located below the cylinder 2 and gently slopes forward between the guide plate 11 and the suction nozzle 23 arranged on the floor 12 at the rear of the machine. This shows a case in which a conveyor 16 with an endless belt stretched below the take-in 1 is continuously provided. ) A suction port 23d of the suction nozzle 23 is opened at the top, and is connected to a dust collector (not shown) via a duct 24.

Therefore, in this case, the objects that have fallen from the take-in 1 are actively conveyed to the suction bow nozzle 23 side by the conveyor 16, so that they are discharged to the left in the figure by the blowing of the exhaust airflow discharged from the discharge port 9. The fallen objects on the auxiliary guide plate 15 are not prevented from moving forward by the fallen objects in front, and are quickly discharged to the rear side of the machine and are brought to fruition by the suction nozzle 23 in the front.

In the third embodiment shown in FIG. 3, instead of the suction nozzle 23 in the second embodiment, a winding roller 19 is placed above the forward end of the conveyor 16, and both ends of the winding roller 19 are fixed on a bracket 17. It is supported vertically by a stand 18 provided and rotates in the direction of the arrow as the conveyor 16 goes around.

Note that 20 is a press roller placed on the conveyor 16.

In this third embodiment, the fallen objects discharged on the auxiliary guide plate 15 and on the conveyor 16 in the direction of the arrow are compressed between the press roller 20 and the conveyor 16, and then sequentially wound up by the winding roller 19. It will be done.

In the present invention, as described above, the gauges between the front cover plate, a part of the grid bar, and the cylinder are set to C<Ai-, B, and the gauge between the front cover plate and a part of the grid bar is set to B<D. Since the exhaust ports are formed at wide intervals and a guide plate is provided below them, most of the accompanying airflow that is generated between the cylinder under casing and the front cover plate as the carding machine cylinder rotates is diverted to the exhaust port. The exhaust port formed between a part of the grid bar of the cylinder under casing and the front cover plate prevents the air from moving forward and discharges the air from the exhaust port toward the bottom of the machine. It passes through the bottom and directs it to the rear side, and sprays on the short fibers and foreign matter that have fallen under the machine stand of the carding machine, and discharges the fallen items to the rear side of the machine stand.

By simply installing a simple guide plate below the exhaust port formed in the cylinder under casing, most of the debris under the machine base will be continuously discharged to one side without accumulating, and the material will be removed from the bottom of the carding machine base. can be kept constantly clean.

Incidentally, the fallen objects discharged to one side of the machine base can be appropriately disposed of by attaching a suitable dust collection means to the discharge end as shown in the embodiment.

[Brief explanation of drawings]

Fig. 1 is a sectional view showing the first embodiment of the present invention, Fig. 2 is a sectional view of the second embodiment, Fig. 3 is a partial sectional view showing only the main parts of the third embodiment, and Fig. 4 is a sectional view of the second embodiment. FIG. 3 is an explanatory diagram of main parts. Explanation of the symbols of the main parts, 1...Tekine, 2
・・・・・・Cylinder, 3・・・・・・Dotsfa-1
5, 5a...Grid bar 6...Grid bar part, 7...Front cover plate, 8...
- Cylinder under casing, 9... Exhaust port, 11... Guide plate.

Claims (1)

[Claims] 1. In a carding machine in which a rear cover plate 4, a grid bar part 6, and an undercasing 8 of a front cover plate 7 are provided along the lower side of the cylinder 2, the grid bar part 6 and the cylinder 2 are provided.
The gauges A and B at the upper and lower ends of the front cover plate 7 and the cylinder are set to C<A≦B, and the distance between the front cover plate 7 and the grid bar part 6 is set to B<D. A chamfer 10 having a height substantially equal to the gauge B is formed on the exhaust port wall surface 5a of the grid bar part 6, and the exhaust flow is directed below the exhaust port 9 toward the rear of the machine. A waste discharge device for a carding machine, which is provided with a guide plate 11. 2 Gauges A at the upper and lower ends of the front cover plate 7 and the cylinder,
The falling material discharging device for a carding machine according to claim 1, wherein B is set to be at least three times the gauge C of the gripper part 6 and cylinder 2.