JPH0346926A - Small piece transferring device - Google Patents

Abstract

PURPOSE:To intend equal-amount transfer by inserting the end of a transfer tube into the center of a hopper for small pieces, etc. and facing a nozzle for blowing pressurized air to the center of the opening end thereof to suck the small pieces in the transfer tube through the pressurized air. CONSTITUTION:A transfer tube 3 has the end 3a vertically inserted into the center of a hopper 2 which contains small pieces 1. To the opening center of the end 3a, a nozzle 4 for blowing pressurized air is faced. The small pieces 1 are therefore sucked into the transfer tube 3 as the pressurized air is blown out, on account of which a constant blow amount of pressurized air allows the small pieces 1 to be carried into the transfer tube 3 smoothly on an equal- amount basis. The carried mixture of air and the small pieces 1 is separated with a cyclone 19 to collect the small pieces 1. Also, a vibrator installed on the side wall of the hopper 2 could prevent the bridge of the small pieces.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a small piece transfer device for the purpose of continuously transferring a fixed amount of sesame seeds, seaweed pieces, dried vegetables, etc. singly or as a mixture.

(Prior Art) Conventionally, screw conveyors have been mainly used for transporting small pieces or granular materials, and gravity or air transport has also been considered.

(Problem to be Solved by the Invention) However, homogeneous materials with relatively uniform particle size, such as grains, can be smoothly transported by air or screw conveyor, but for example, small pieces of seaweed or dried vegetables, etc. When using a scaly material or a mixture thereof, there are problems in that it tends to clog the transfer pipe when conveyed by a screw conveyor or by air, and the amount of feed tends to be uneven. The above-mentioned problem is caused by small pieces getting entangled with the blades of the screw conveyor, and in the case of air transfer, it is often caused by an imbalance between the amount of air and the amount of material to be transferred.

(Means for Solving the Problems) However, in this invention, the end of the transfer pipe is suspended into the hopper, and the pressurized air nozzle is exposed to the opening thereof. This made it possible to transfer large quantities.

That is, the present invention provides a small piece transfer method characterized in that an end of a transfer pipe is inserted into the center of a hopper for small pieces, etc., and a nozzle for blowing out pressurized air faces the center of an opening at the end of the transfer pipe. It is a device. In another aspect of the present invention, an end of a transfer pipe is inserted into the center of a hopper for small pieces, etc., a nozzle for blowing out pressurized air is faced at the center of an opening at the end of the transfer pipe, and at least The small piece transfer device is characterized in that a vibration means is provided near the same height as the end of the transfer tube.

An opening/closing means is provided at the end of the transfer pipe. The opening/closing means is a valve that moves together with the nozzle.

Further, another opening/closing means is one in which a cover tube fitted onto the end of the transfer tube is slid to close it.

If pressurized air is blown out from the nozzle while the transfer pipe is closed, there is no risk that the transferred material will remain in the transfer pipe when the operation is stopped. Since pressurized air nozzles are disposed opposite to each other in the opening, the object to be transferred is sucked in as the pressurized air is blown out, and the amount of the object to be transferred and the amount of air become constant by themselves.

(Example) Embodiments of the invention will be described with reference to the drawings.

The end 3a of the transfer pipe 3 is inserted downward into the center of the hopper 2 containing the small pieces 1 and the like. A nozzle 4 for blowing out pressurized air is placed in the center of the opening at the end of the transfer pipe. If necessary, as shown in the second figure, a vibration means 5 is provided on the side wall of the hopper 2 near the same height as the end of the transfer pipe.

As the vibration means 5, as shown in the second figure, the output shaft 7 of a vibrator 6 is brought into contact with or connected to the side wall of the hopper. Alternatively, various conventionally known means can be employed, such as installing the vibrator 6 on the side wall of the hopper, or fixing a ferromagnetic piece to the side wall of the hopper and making it face an electromagnet. In the above,
When the hopper side wall is a square pyramid, the vibration force is applied simultaneously or sequentially.

Next, various structures can be considered for opening and closing the lower end of the transfer tube. For example, as shown in FIG. 3, there is a structure in which the nozzle 4 is raised and lowered by a cam 8 and a cam lever 9, and a valve 10 provided on the outer periphery of the nozzle 4 is fitted into the transfer pipe end 3a. Furthermore, the end of the transfer tube can be closed by fitting the cover tube 11 to the end of the transfer tube so as to be able to move up and down and lowering the cover tube 11 (FIG. 4). In the figure, 12 is a rack, 13 is a pinion, and 14 is a pinion shaft.

By vibrating the hopper wall in the above, it is possible to prevent the transferred material from forming crosslinks within the hopper. Furthermore, by closing the end of the transfer pipe and operating only the pressurized air from the nozzle, it is possible to prevent the object to be transferred from remaining in the transfer pipe when the work is stopped.

In the above embodiment, when pressurized air is blown out from the nozzle 4 as shown by the arrow 15, the small pieces 1 at the bottom of the hopper 2 are carried into the transfer pipe 3 as shown by the arrow 16, and are transferred as shown by the arrow 17. It passes through the transfer pipe 3 and is discharged into the cyclone 19 as shown by the arrow 18.

Inside one cyclone, centrifugal force is applied as shown by the arrow 25, and the small pieces are discharged along the inner wall of the cyclone 19 as shown by the arrow 20, and the air is exhausted from the exhaust pipe 22 as shown by the arrow 21. be done.

Further, when the vibrator 6 vibrates, the side wall of the hopper 2 vibrates via the output shaft 7 as shown by the chain line in the figure. For example, four vibrators 6 are installed at equal intervals, but the vibrators 6 can be vibrated simultaneously or sequentially. or,
When the cam 8 is rotated, the cam lever 9 moves up or down around the central shaft 23. When the nozzle 4 rises, the nozzle 4 also rises as shown by the arrow 24 and closes the end of the transfer pipe.

Further, when the pinion shaft 14 is rotated, the covering tube 11 is raised and lowered by the operation of the rack 12 and the pinion 13, so that the end of the transfer tube can be opened and closed.

(Effect of the invention) 4゜That is, according to this invention, the transfer pipe is suspended in the hopper,
Since the nozzle is placed opposite to the end of the transfer pipe, by blowing out pressurized air from the nozzle, the amount of pressurized air and the amount of the object to be transferred are automatically adjusted, and the same amount can be transferred smoothly. Further, by applying vibration to the hopper wall, bridging within the hopper can be prevented. Furthermore, by providing a means for closing the transfer pipe, there is an effect that the objects to be transferred in the transfer pipe can be cleaned out at the end of the work.

[Brief explanation of drawings]

Fig. 1 is a partially cutaway front layout view of an implementation device of the present invention, Fig. 2 is a partially sectional view of another embodiment, and Fig. 3 is a partially enlarged sectional view of an embodiment for blocking a transfer pipe. FIG. 4 is a partially enlarged view of another embodiment of the transfer tube blockage. 1...Small piece 2...Hopper 3...Transfer pipe 4
... Nozzle 5 ... Vibration means

Claims (1)

[Claims] 1. An end of a transfer pipe is inserted into the center of a hopper for small pieces, etc., and a nozzle for blowing out pressurized air faces the center of the opening of the end of the transfer pipe. Small piece transfer device 2 An end of a transfer pipe is inserted into the center of a hopper for small pieces, etc., and a nozzle for blowing out pressurized air faces the center of the opening at the end of the transfer pipe, and at least the transfer pipe on the hopper wall is A small piece transfer device 3 characterized in that a vibrating means is provided near the same height as the pipe end. A small piece transfer device 4 according to claim 1 or 2, wherein an opening/closing means is provided at the transfer pipe end. The opening/closing means is a valve that moves together with the nozzle. Claim 3
The small piece transfer device 5 according to claim 3.The small piece transfer device according to claim 3, wherein the opening/closing means is a sliding cover fitted to the end of the transfer pipe.