JPS6215251Y2 - - Google Patents

Description

[Detailed description of the invention] This invention mainly relates to a cotton feeding tower feeding device for pneumatic transportation of raw cotton in a spinning factory or a felt manufacturing factory.

Conventionally, in this type of cotton feeding tower (reserve tank) supply device, raw cotton is first air-fed into the inside of the tower through a single input port at the center of the upper surface of the tower through a plurality of air guide plates pivotally mounted on the upper surface of the reserve tank. The raw cotton that is scattered, settled, and deposited by the continuous left and right rotation swing of the cotton feeding box (reserve tank), and the raw cotton that is blown by the duct from the upper end of the cotton feeding box (reservation tank) are transported by the lower feeding roller, feeder, feed roller, and cylinder. A common method is known in which the material is deposited on a downward conveyor.

However, in the former method, the raw cotton is blown from one place in the center, so although the raw cotton is scattered from side to side by the air guide plate, due to the unevenness of air pressure, for example, the raw cotton that has been deposited is blown to both the left and right sides. The thickness becomes higher, but the center band becomes lower, resulting in a so-called mortar-like noticeable thickness unevenness, and in particular, the center band becomes extremely dense compared to both side bands, that is, density unevenness occurs.
This has the disadvantage of causing local thickness unevenness in the felt. In the latter case, on the other hand, the center part is bulky and has a low density, while the side parts are low bulky and have a high density, which also results in uneven thickness of the felt.

This invention solves the above-mentioned drawbacks of the conventional cotton feeding tower by providing a cotton feeding tower feeding device with a multi-branch feeding system that can feed raw cotton obliquely downward from both sides to the bottom without air pressure, as described below. be.

This invented device will be described in detail with reference to the embodiments shown in the drawings. 1 is a reserve tank with an opening at the top; 2, 3;
The raw cotton 7 is fed through air ducts (round pipe ducts are used in the embodiment shown, but any cross-sectional shape can be used) arranged horizontally and parallelly on both the left and right sides above the reserve tank 1. It allows air flow to be transported. Therefore, in this idea,
Two (plural) communication input parts 5, 5 branched from the above-mentioned air ducts 2, 3, respectively, are distributed to the upper end opening of the reserve tank 1, and the upper end opening is divided into two (multiple divisions) in the front and back direction. A plurality of supply cotton input ports are formed, which are connected to each other, and are arranged diagonally downward from both sides. Further, each of the communication input portions 5 has upper front and back wall surfaces each serving as an upwardly sloped wall portion 5a, and each upper end communicates with the left and right ventilation ducts 2 and 3 through a branch port 6, respectively.

In the first embodiment shown in FIGS. 1 to 3, one end of each of the left and right air ducts 2 and 3 has an air outlet 2 connected to a blower unit that is a source of raw cotton air.
and a return port 3' for returning surplus raw cotton 7 to the chute of the blower unit, and the other ends of the left and right air ducts 2 and 3 are connected to each other by a bent pipe section 4, Air duct 3
is configured as a so-called U-turn duct, which is a return air duct.

Further, in the second embodiment shown in FIGS. 4 and 5, the left and right blower ducts 2 and 3 may be configured as U-turn ducts that connect to return air ducts 2a and 3a via bent pipe portions 2b and 3b. In this case, 2' and 3'' are air blowing ports, and 2'' and 3 are air return ports, respectively.

In this devised device, when the raw cotton 7 is air-transported to the left and right ventilation ducts 2 and 3, when it passes through each branch port 6 provided in each, the airflow pressure is attenuated, so that the raw cotton 7 enters the communication input portions 5 and 5. As shown by the arrow in Fig. 1, the upper surface of the cotton gradually increases in volume from the front end to the rear end, and sinks at a speed of 2 to 3 m/sec. They are deposited and settled into the reserve tank 1 from the inlet.

This invention has the above-mentioned configuration, and is a multi-branch supply system in which the raw material can be supplied into the reserve tank 1 from both sides diagonally downward without air pressure. Uniform supply is corrected, bulk thickness and density are uniformly deposited, and felts of uniform thickness are obtained, which is an outstanding effect.

In addition, the communication input section 5, which is a plurality of supply cotton input ports, is distributed from the left and right sides instead of directly above, so that stable supply can be performed without uneven settling of raw cotton in the reserve tank 1. This has excellent effects such as preventing the thickness of the supplied cotton from becoming unbalanced.
Note that the surplus raw cotton 7 that has passed through the branch port 6 can be easily reduced and recovered.

[Brief explanation of drawings]

The drawings show an embodiment of this invented device, and FIG. 1 is a side view of a part of the first embodiment, and
The figure is a plan view of the same as above, Figure 3 is a vertical front view of the same as above, and Figure 4 is a front view of the same as above.
The figure is a plan view of the second embodiment, and FIG. 5 is a longitudinal sectional front view of the same. 1... Reserve tank, 2, 3... Air duct, 2a, 3a... Return air duct, 2b, 3b...
Bent pipe section, 2', 3''...Blower port, 2'', 3'', 3...
...Return air port, 4...Communication section, 5...Communication input section, 5
a... Upper slope wall portion, 6... Branch mouth, 7... Raw cotton.

Claims (1)

[Scope of utility model registration request] Blowing ducts 2 and 3 for airflow transporting the raw cotton 7 are arranged on both left and right sides above the reserve tank 1, respectively.
A plurality of communication input portions 5 branched from the left and right ventilation ducts 2 and 3 are communicated with the upper end opening of the reserve tank 1 in a state in which it is divided into a plurality of sections in the front and back direction, and the supply cotton input ports are connected from both sides. A cotton feeding tower feeding device consisting of a plurality of units facing diagonally downward.