JPH11208852A - Intermediate discharging port structure of pipe conveyor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an intermediate discharging port structure of a pipe conveyor, capable of easily sealing a part between an opening of a pipe and an opening and closing door, and having reliability of the operation. SOLUTION: In a pipe conveyor 1 in which a conveying means to be circulated and driven is mounted in a pipeline 2 provided with input ports 4A to 4C, and intermediate discharging ports 7 capable of being freely opened and closed are provided on the way of the pipeline 2, each intermediate discharging port 7 is composed of an opening and closing door having an opening formed on the bottom part of a pipe, having a seal part for covering the outside of the opening, and for blocking the opening, and an opening and closing means for displacing the opening and closing door in the position to block the opening and in the position to open the opening by opening the door to the outside of the pipe.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an intermediate discharge port of a pipe conveyor in which a conveying means circulating and driven inside a pipeline having an input port is provided, and an intermediate discharge port which can be opened and closed at a middle position of the pipeline is provided. Regarding the structure.

[0002]

2. Description of the Related Art As shown in FIG. 10, a conventional pipe conveyor 30 is connected endlessly to a pipeline 35 comprising a straight pipe 31 and a bent or bent pipe 32 and having an inlet 33. A pusher such as a circular blade pulled by a linked chain is provided so as to be able to be driven in a circulating manner, and the conveyed object put into the pipeline 35 is opened at the end of the pipeline 35 (in the illustrated example, this is one location. (There may be two places) and discharge is concentrated at the discharge port 34 formed at the same position. Reference numeral 38 denotes a case constituting a discharge port, 39 denotes a drive wheel such as a sprocket which is attached to the case 38 and drives the link chain to rotate, and M denotes a motor for rotating the drive wheel 39. Therefore, when it is desired to change the discharge position depending on the type of the transferred object, it is necessary to provide an opening at the bottom of the pipe at an intermediate position of the pipeline 35 to form an intermediate discharge port. Further, although not shown, when the above-described outlet is not formed and the pipeline is formed endlessly, it is necessary to provide an opening at the bottom of the pipe at an intermediate position of the pipeline and provide an intermediate outlet. . In this case, when a plurality of outlets are provided while the opening remains open, a predetermined outlet cannot be selected and used.
Even when only one outlet is provided, foreign matter may directly enter the pipe from outside if the opening is left open when not in use.

[0003]

When an opening is provided at the bottom of a pipe as a discharge port as described above, it is necessary to provide an opening / closing door for closing the opening. In this case, as the door, for example, a guide rail is provided along the longitudinal direction of the pipeline at the opening edge of the pipe, the door is slidably mounted on the guide rail, and the door is slid along the longitudinal direction of the pipeline. Can be conceived to be opened / closed by sliding. But,
In the above-described slide configuration, it is difficult to seal between the opening of the pipe and the opening / closing door, and there is a possibility that the transported object enters the slide portion and malfunctions occur.
This invention was created in view of the above circumstances,
The main problem is to provide an intermediate outlet structure of a pipe conveyor in which a seal between an opening of a pipe and an opening / closing door is easy and operation reliability is high.

[0004]

According to the present invention, in order to achieve the above object, according to the first aspect of the present invention, a conveying means for circulating and driving is installed inside a pipeline having an inlet, and the pipeline is provided in the middle of the pipeline. A pipe conveyor having an intermediate discharge port that can be opened and closed at a position, wherein the intermediate discharge port has an opening formed at the bottom of the pipe, and has a seal portion that covers the outside of the opening. Technical means is provided which includes a door and an opening / closing means for displacing the opening / closing door between a position for closing the opening and a position for opening the opening to the outside of the pipe to open the opening. Further, in the invention of claim 2, the opening / closing means includes an operating piece having a base end pivotally attached to a mounting portion projecting outward from the pipe and a distal end attached to the opening / closing door; Technical means are provided, comprising drive means for pivoting between a position and a closed position. Furthermore,
According to the third aspect of the present invention, the opening and closing door is formed to have the same curvature as the cross section of the pipe, and is fitted with a slight gap to the opening at the closed position that closes the opening of the intermediate outlet, so that the pipe has the same circle. Technical measures are taken to comprise a door body disposed on the periphery and a seal member covering the gap outside the door body. Further, according to the invention of claim 4, the pipeline of the pipe conveyor is formed endlessly or provided with an open end including an outward path and a return path in at least one place, and a plurality of intermediate drains are provided at an intermediate position of the pipeline. There is a technical means that an exit is provided.

[0005] As described above, the opening and closing operation of the opening and closing door is performed not by the slide method but by the swing method, so that there is no danger that the conveyed object enters and the opening and closing operation is stabilized. Further, since the seal portion is provided on the opening / closing door, the gap in the opening can be sealed with a simple structure.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of an intermediate outlet structure for a pipe conveyor according to the present invention will be described below with reference to the drawings.

A pipe conveyor 1 shown in FIG. 1 has a pipeline 2 composed of a series of pipes which meander appropriately by combining a straight pipe, a curved pipe, and a bent pipe as shown in the conventional structure of FIG.
However, the main discharge port 3 is circulated continuously with the end as an end.
A transport means 5 is provided inside the pipeline 2, and the transport means 5 connects a plurality of transport plates (blades) 5B in the longitudinal direction of the endless chain 5A as shown in FIG. Is wound around a drive wheel 6 provided in a case forming the main discharge port 3 of the pipeline 2, and is configured to circularly drive inside the pipeline 2.

M is a motor for rotating the driving wheels 6 by belt transmission. The pipeline 2
A plurality of inlets 4A, 4B, 4C
Are arranged. Further, a plurality of (three in the illustrated example) intermediate discharge ports 7, 7, 7 are formed near the main discharge port 3 of the pipeline.

FIG. 2 shows an embodiment of a different pipe conveyor 1 of the pipeline 2. The pipeline 2 is connected endlessly, a case is provided at a corner portion, a driving wheel 6 is built in, and a motor M for rotational driving is attached. Further, a plurality of intermediate discharge ports 7 are provided in the pipeline 2 on the front side toward the drive wheels 6. In addition, a plurality of input ports 4A, 4B,
4C is provided.

The pipe conveyor 1 shown in FIGS.
Have the same configuration, and only one of them will be described. As shown in FIGS. 3 to 6, the intermediate outlet 7 is provided with an opening 8 below the pipe 2a (in the illustrated example, at the bottom), and an opening / closing door 10 opens and closes the opening 8 by opening / closing means 20. It covers freely.

That is, as is clear from FIG. 5, the opening 8 of the pipe is formed to have a semicircular cross section. On the other hand, the opening / closing door 10 is formed to have the same curvature as the cross section of the pipe 2a, is fitted in the opening 8 at a closed position closing the opening 8 of the intermediate discharge port 7 with a slight gap S, and has the same circle as the pipe 2a. It comprises a door body 11 having a semicircular cross section arranged on the periphery, and a seal portion 12 extending outwardly outside the door body 11 and covering the vertical and horizontal gaps.

Here, the door body 11 and the seal portion 12 are made of the same material as the pipe 2a, but different materials can be used. The seal member 12 is made of an elastic material such as rubber and is attached to and detached from the door body 11. It may be freely attached.

Next, the opening / closing means 20 includes an operating piece 22 having a base end pivotally attached to a mounting portion 21 protruding outward from the pipe 2a and a distal end attached to the opening / closing door 10; And a drive unit 23 for pivoting between an open position and a closed position.

The operating piece 22 comprises an L-shaped arm in the illustrated example, and has a distal end fixed to the opening / closing door 10 and a base end pivotally attached to a mounting portion 21 by a pivot 24. Further, the driving device 23 has a configuration in which an output shaft of a motor is provided coaxially with the pivot 24 of the operation piece 22. Therefore,
By rotating the pivot 24 by the driving device 23 and tilting the operation piece 22, the opening and closing door 10 is displaced to a closed position for closing the opening of the pipe 2 a and an open position for separating from the outside of the pipe 2 a. The opening 8 can be opened and closed.

Although a motor is used as the driving device 23 in the above embodiment, a fluid pressure cylinder may be used as shown in FIG.
For example, a telescopic end of a hydraulic cylinder 23 'having a fixed end pivotally connected to the pipe 2a or the mounting portion 21 is pivotally connected to the operation piece 22, or a hydraulic cylinder 23' is pivotally connected to the operation piece 22 via a link (not shown). In the same manner as described above, the opening and closing door 10 may be displaced.

FIG. 7 shows an embodiment of the door 10 having a simple structure. The opening and closing door 10 is formed so as to be longer in the circumferential direction than the opening 8 of the pipe 2a, and has an edge serving as a seal portion 12 extending beyond the opening edge. Therefore, the opening 8 can be closed by stacking the door 10 so as to cover the opening 8 from the outside of the pipe 2a. Opening / closing means 20
Other configurations are the same as those of the above-described embodiment, and therefore, the same configurations are denoted by the same reference numerals and description thereof will be omitted.

In the illustrated example, the endless chain 5A passes right beside the inner wall of the pipe, and in the above-described embodiment, the case where the endless chain 5A passes through the top of the inner wall of the pipe is shown. As described above, it is preferable that the endless chain 5A is arranged so as not to pass over the opening 8 provided in the pipe. Since the endless chain 5A is stretched so as to pass through the meandering conduit and pass through the shortest distance, the endless chain 5A is stretched.
It is preferable that the opening 8 is positioned at a position where the opening 8 slides at least immediately above the inner wall of the pipe so that A does not block the opening 8 serving as the outlet.

For example, the drive unit 23 opens and closes the door 10 by manual operation using a switch provided separately, or automatically by a sensor for detecting the loading of an object to be loaded or a signal from a host system. Can be operated. Thus, when a plurality of intermediate discharge ports are provided, only the necessary intermediate discharge ports can be opened to discharge the conveyed object from the intermediate discharge ports. Also, 1
Even when only one intermediate outlet is provided, for example, when not in use, the opening / closing door can be closed to prevent foreign matter from entering the pipe.

In the above-described embodiment, an endless chain having blades at equal intervals has been exemplified as a conveying means. However, in the present invention, any bucket, bar, or other pushing body other than the blade may be used. A wire or the like may be used as long as it is a flexible member connected to. The opening and closing door 10 is hinged to the pipe by a hinge H or the like.
The structure may be such that the operating piece or link R attached to the opening / closing door 10 is pulled and opened by the fluid pressure cylinder 23 (see FIG. 9). In other words, it goes without saying that various design changes can be made without departing from the scope of the present invention.

[0020]

According to the present invention, since the opening and closing door is of a swing type instead of a slide type, there is no danger that the transported object may enter the movable part and cause a malfunction, thereby improving the reliability of the operation. Further, the seal between the opening of the pipe and the opening / closing door can be performed with a simple configuration.

[Brief description of the drawings]

FIG. 1 is a schematic view showing an embodiment of a pipe conveyor.

FIG. 2 is a schematic view showing another embodiment of a pipe conveyor composed of an endless pipeline.

FIG. 3 is a front view of an intermediate discharge port.

FIGS. 4A and 4B are side views of FIG.

FIG. 5 is a sectional view showing an opening / closing door and opening / closing means.

FIG. 6 is a sectional view showing the inside of a pipe at an intermediate discharge port.

FIG. 7 is a sectional view showing a different opening / closing door.

FIG. 8 is a sectional view showing different opening / closing means.

FIG. 9 is a sectional view showing another opening / closing means.

FIG. 10 is a perspective view showing a conventional pipe conveyor.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pipe conveyor 2 Pipeline 2a Pipe 4A, 4B, 4C Input port 5 Conveying means 5A Endless chain 5B Conveying plate 6 Drive wheel 7 Intermediate discharge port 8 Opening 10 Opening / closing door 11 Door main body 12 Sealing part 20 Opening / closing means 21 Mounting part 22 Operation 23 drive

Claims (4)

[Claims] Claims: 1. A pipe conveyor having a conveying means internally circulatingly driven in a pipeline having an inlet, and having an intermediate outlet which can be opened and closed at an intermediate position of the pipeline, wherein the intermediate outlet is: An opening is formed at a lower portion of the pipe, and an opening / closing door having a seal portion covering the outside of the opening and closing the opening, a position for closing the opening and a position for opening the opening by opening the opening to the outside of the pipe. And an opening / closing means for displacing the intermediate discharge port of the pipe conveyor. 2. An opening / closing means comprising: an operating piece having a base end pivotally attached to a mounting portion projecting outward from a pipe and having a distal end attached to an opening / closing door; The intermediate discharge port structure of a pipe conveyor according to claim 1, further comprising a driving means for pivoting the pipe conveyor. 3. The opening / closing door is formed to have the same curvature as the cross section of the pipe, is fitted with a slight gap in the opening at a closed position closing the opening of the intermediate discharge port, and is formed on the same circumference of the pipe. The intermediate discharge port structure according to claim 1 or 2, comprising a door main body arranged and a seal member that covers the gap outside the door main body. 4. The pipeline of a pipe conveyor is formed endlessly or provided with an open end portion comprising at least one outgoing path and a return path, and a plurality of intermediate discharge ports provided at an intermediate position of the pipeline. The intermediate outlet structure of a pipe conveyor according to any one of claims 1, 2 and 3, wherein: