JP3397294B2 - Pipe conveyor - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a pipe conveyor in which the ends of the forward and return paths of a pipeline are vertically arranged.

[0002]

2. Description of the Related Art As a pipe conveyor, the present applicant has proposed the chip conveyor of Japanese Patent Publication No. 61-57249. In this chip conveyor, an endless link chain is internally circulated in a pipeline. In the link chain, a plurality of blades (pushing bodies) are arranged at regular intervals, and the chips (transported objects) loaded from the loading port of the pipeline are ejected by the pushing body as the endless chain rotates. It is configured to push out. The discharge port is set at the turning point of the reciprocating path of the pipeline, and a guide roller for rotating the endless chain is provided at the turning point, and the forward path is the lower pipe and the returning path is the upper pipe. It is configured to fold an endless chain from above to above.

[0003]

In the above-mentioned conventional structure, it is necessary to provide a guide roller for tensioning the endless chain before the drive roller so as to prevent the lower endless chain from being loosened. was there. Also, on the end side of the outward path (lower pipe), the endless chain is pulled along the inner upper wall of the pipe and the blade is hung, so that a large gap is created between the blade and the inner bottom surface of the pipeline. There is a risk that the transported object such as the above may leak from the gap and fall off. The present invention was devised in view of the above circumstances, it is not necessary to provide a guide roller for tension adjustment, and the transported object is less likely to leak from a pusher such as a blade during transportation, and the route can be easily set. To provide a pipe conveyor.

[0004]

According to the present invention, in order to achieve the above object, in the invention of claim 1, the forward and backward end openings of the pipeline are arranged vertically and passed through the pipeline. A link chain or other conveying member is connected endlessly so as to be able to circulate in the pipeline, and a sprocket or other guide roller for reversing and conveying the conveying member is provided between the end portions of the pipeline. In a pipe conveyor that conveys an object to be conveyed with a pushing member protruding from the discharge port formed in the end opening, a cover that covers the end opening of the pipeline is provided in front of the end.
The cover is attached to the cover so that it can be adjusted rearward, and
Sprocket and other guide wheels rotated by the drive unit
To prevent the link chain on the outward path from loosening.
Technical measures are taken such that the position of the cover is adjusted forward and backward, and the guide roller is rotationally driven so that the transport member moves from top to bottom. Further, in the invention of claim 2, the pipeline is formed in a series in which one of the conveying members is folded back by a sprocket or other guide roller between the end portions and the other is folded by a U-shaped pipe portion. It consists of a single pipe, and the end side of the upper outward path pipe is set to be substantially horizontal toward the discharge port, and the end side of the lower return side pipe is gradually moved toward the end opening. We have taken the technical measure of setting it in an inclined posture that goes upward.

Therefore, at the discharge port at the end of the pipeline, the endlessly connected conveying member is fed around by the guide rollers from top to bottom. As a result, the transport member advances along the inner bottom wall of the pipe in the outward path on the upper side, and the pusher stands upright on the transport member. Therefore, the object to be conveyed on the inner bottom wall of the pipe is pushed out to the discharge port by the pusher, but at that time, the gap between the pusher and the inner bottom wall of the pipe is small, so that the object to be conveyed does not leak. Is significantly less. Also,
Since the conveying member can be tensioned and does not loosen depending on the position of the guide roller, it can be smoothly circulated and can be stably driven.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the pipe conveyor of the present invention will be described below with reference to the drawings. The pipe conveyor 1 has a structure in which an endless link chain 6 having blades 7 at equal intervals is provided in a pipeline 2 so as to be able to circulate. That is, as shown in FIGS. 1 and 2, the pipeline 2 is formed by combining straight pipes, curved pipes, bent pipes, and the like to make a desired meandering, and one fold of the link chain 6 is opened at the end portion of the pipeline. And a series of pipes formed so that the other part is folded at the U-shaped pipe part.

In this pipeline 2, as shown in FIGS. 3 and 4, the end portion of the pipe arranged above the end opening is the outward path 2A, and the end portion of the pipe arranged below is the return path 2B. Has become. A discharge portion 3 is formed between the ends of the outward path 2A and the return path 2B, and a charging port 4 is formed in the middle of the outward path 2A and the return path 2B. The link chain is formed by alternately connecting egg-shaped links in a vertical direction and a horizontal direction.

The blade 7 is formed by fixing an end portion of a circular substrate to the lateral link and projecting in a direction orthogonal to each other.
In the case of the illustrated example, a large-diameter scraping plate is bolted to the circular substrate. The blade 7 may have a flat plate shape (see FIG. 5) or a curved bucket type (not shown) as long as the outer periphery has a substantially circular contour. Is stuck to.

Therefore, in the meandering pipeline, the link chain 6 is stretched so as to pass through the shortest distance, and the blade 7 is provided at the corner where the link chain is obliquely arranged.
Collides with the inner wall surface of the pipe and twists the link chain 6, and the blade 7 is rotated by the repulsive force of the twisted link chain 6 to move in the pipeline (see FIG. 6).

The discharge part 3 covers the end opening of the pipe and has a box-shaped case 3A having a discharge port 3D at the bottom.
It consists of That is, the case 3A includes the connecting portions 3B, 3 to which the pipe ends of the forward path 2A and the return path 2B are attached.
C is provided on the upper and lower sides of the rear surface, and the pipe end portion of the outward path 2A is connected to the upper pipe connecting portion 3B, and the pipe connecting portion 3C is obliquely downward.
The end of the pipe of the return path 2B is connected to.

Further, in the case 3A, a sprocket 8 shown as an example of the driving guide roller is rotatably supported between the forward path and the end opening. A drive motor 11 for driving the sprocket 8 is installed on the top surface of the case 3A, and a transmission means 13 such as a belt is provided between the output shaft 12 of the drive motor 11 and the rotation shaft 9 of the sprocket 8. It is arranged. The link chain 6 is hooked on the sprocket 8 so that it can be locked.

With the above construction, when the drive motor 11 is driven, the endless chain 6 advances through the rotary shaft 9 by the sprocket 8 in the pipe on the side of the outward path 2A toward the discharge portion 3 and the sprocket. 8 is reversed from top to bottom and is fed to the pipe on the return path 2B side.

Therefore, when an object to be conveyed is introduced from the inlet 4, the object to be conveyed is pushed inside the pipeline 2 by the pusher 7 such as a blade and reaches the end opening to be discharged. In this case, in the conveying means 5, the endless chain 6 moves along the inner bottom wall of the pipe at the end portion on the outward path 2A side, and accordingly, the blade 7
Similarly, since one end thereof is fixed to the link chain 6, the end portion on the outward path 2A side also moves upright along the inner bottom wall of the pipe.
Even in the case of granules or granules, the untransferred amount is remarkably reduced as compared with the conventional one.

Particularly in this embodiment, the posture of the pipe end portion on the outward path 2A side is not limited. Therefore, for example, since the end portion can be set to be substantially horizontal, there is no fear of leaking from the blade 7 and returning in the opposite direction by its own weight. Further, the inclination on the return path 2B side is also not particularly limited, and it can be set to a steeper gradient than in the past, and thus the degree of freedom in setting the route of the pipe is expanded.

Further, the endless chain needs to be tensioned and then towed, but since the outward path 2A becomes the upper end and the link chain 6 moves along the inner bottom wall of the pipe,
The sprocket 8 can be tensioned directly, and it is not necessary to provide a guide roller in front of the sprocket 8 to tension the sprocket 8 as in the conventional case.

Therefore, in the present embodiment, the sprockets may be arranged to position the case so that the link chain 6 on the outward path does not loosen when the case is attached. There is no danger of it coming off. In addition, if the link chain on the outward path becomes loose after mounting, if the mounting position of the case can be adjusted forward and backward, it can be adjusted by appropriately moving it forward.

In this embodiment, the pipeline uses a series of one pipe, but it may be composed of two parallel pipes. In this case, both ends are used as the discharge ports, and one side may be provided with a guide roller serving as a driving wheel, and the other may be provided with a guide roller serving as a driven wheel. When one end of one pipe is set to the upper side, one end of the other pipe is set to the lower side, the other end of the one pipe is set to the lower side, and the other end of the other pipe is set to the upper side. As long as the transport members are folded back from the top to the bottom at both ends, it is sufficient. The rest of the configuration is the same as that of the above-mentioned embodiment, so its explanation is omitted.

Further, in the above embodiment, the blade was illustrated as an example of the pushing member, but the shape of this blade is not limited to the above embodiment, and may be a bucket type or a claw type. . Further, instead of the link chain that pulls the pushing member, another chain or wire may be used. It goes without saying that various other design changes can be made without departing from the spirit of the invention.

[0019]

The present invention constructed as described above has the following excellent effects. In the discharge part, the end of the outward pipe that goes to the discharge port is arranged higher than the end of the return pipe, and an endless link chain that advances along the inner bottom wall of the outward pipe, etc. Since the transport member of No. 1 is configured to be fed backward from top to bottom, even if the transport member loosens, it does not come off from the guide roller, and it is necessary to provide a separate guide roller in order to tension the transport member before the guide roller. Easy to maintain. Since the transport member such as the link chain is configured to advance along the inner bottom wall of the pipe on the outward path, the end of the pushing member provided orthogonally to the transport member also follows the inner bottom wall of the pipe. Since it moves, the gap width between the pusher and the bottom wall of the pipe becomes small, the leakage of the conveyed object is significantly reduced as compared with the conventional case, and the conveying efficiency can be improved. Since the outward pipe end is located above the return pipe end, the outward and return pipe ends can be relatively freely arranged and designed. Can be improved. Furthermore, the existing pipe conveyor equipment can be easily modified, and the performance of the existing equipment can be easily improved.

[Brief description of drawings]

FIG. 1 is a side view of a pipe conveyor.

FIG. 2 is a plan view of a pipeline.

FIG. 3 is a front view of a discharge unit.

FIG. 4 is a side view of a discharging unit.

FIG. 5 is a perspective view showing a blade in a pipe.

FIG. 6 is a partial cross-sectional view showing the movement of the blade.

[Explanation of symbols]

1 Pipe conveyor 2 pipeline 2A outbound 2B Return 3 discharge part 3A case 3B Forward pipe connection 3C Return pipe connection 3D outlet 4 slot 6 Endless link chain 7 blade 9 rotation axis 11 Drive motor 12 Output shaft 13 Transmission means

─────────────────────────────────────────────────── ─── Continuation of front page (56) References JP-A-3-25189 (JP, A) JP-A-11-292241 (JP, A) JP-B-61-57249 (JP, B1) (58) Field (Int.Cl. ⁷ , DB name) B65G 19/14-19/18

Claims (2)

(57) [Claims] 1. A forward path and a return path of a pipeline are arranged at upper and lower ends, and a link chain and other conveying members passing through the pipeline are connected endlessly so as to be circulated in the pipeline. , A sprocket or other guide roller for reversing and feeding the conveying member is provided between the end portions of the pipeline, and the object to be conveyed is conveyed by a pushing member protruding from the conveying member and discharged from the discharge port formed at the end opening. In the pipe conveyor to be discharged , cover the end opening of the pipeline with the front and rear of the end.
And adjustably mounted on the cover, and the drive device and the drive
Sprocket and other guide rollers rotated by the device
To prevent the link chain on the outward path from loosening.
A pipe conveyor characterized in that the guide roller is rotationally driven so as to move the conveying member from the upper side to the lower side by adjusting the position in the front-rear direction. 2. A single pipe formed in a series in which a pipeline is configured such that one of the conveying members is folded back by a sprocket or other guide roller between end portions and the other is folded by a U-shaped pipe portion. The upper end of the outward pipe is set horizontally toward the discharge port, and the lower end of the return pipe is gradually inclined upward toward the end opening. The pipe conveyor according to claim 1, wherein the pipe conveyor is set in an attitude.