JP2001315929A - Loop type belt conveyor device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a loop type belt conveyor device capable of conveying an object to be conveyed with efficiency at low cost by using a belt-shaped belt having the shortest length in the case there are a plurality of cargo conveying paths wherein the objects to be conveyed are needed to be conveyed. SOLUTION: An endless belt-shaped belt 1 is supported so as to circulate through a plurality of cargo conveying paths B1-B4 for linking different loading stations L1-L4 with different unloading stations D1-D4 and to rotate endlessly in a horizontal direction. A drive means for driving the belt-shaped-belt in the predetermined direction of travel is provided at a proper space of the circulating path in the belt-shaped belt 1, and a loading means 3 is provided in each loading station and unloading means 4 and 15 are provided in each unloading station.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a loop type belt conveyor device capable of simultaneously transporting a conveyed product from a plurality of different loading stations to an unloading station with a belt-like belt.

[0002]

2. Description of the Related Art A conventional belt conveyor device for transporting conveyed objects such as gravel, earth and sand, and powdery granules wraps a pair of pulleys spaced apart from each other so that the belt can be run endlessly. One of the pulleys is rotated by driving means such as a motor.

For example, as shown in FIG. 6, loading stations (L1) to (L4) and unloading stations (D1) to (D4)
Are scattered in four places, and each of the conveyed articles is conveyed in the direction of the arrow, each of the loading stations (D1) to (D1)
4) and the unloading stations (D1) to (D4), the belt conveyor device (A
It is customary to arrange 1) to (A4) individually.

[0004]

However, as described above, when the belt conveyor devices (A1) to (A4) are individually arranged in each load transport path, each of the belt conveyor devices (A1) to (A4) has ,
A belt-like belt twice as long as each load transport path, a motor for driving the belt-like belt, and the like are required, resulting in high costs.

The present invention has been made in view of the above-mentioned problems of the prior art, and when there are a plurality of load transport paths that need to transport a conveyed article, the conveyed article is transferred to a belt-shaped belt having the shortest length. It is an object of the present invention to provide a loop type belt conveyor device that can be efficiently used at a low cost by using the same.

[0006]

According to the present invention, the above-mentioned problem is solved as follows. (1) The endless belt belt is circulated through a plurality of load transport paths connecting different loading stations and unloading stations, and is supported so as to run endlessly in the horizontal direction. A driving means for driving the belt-shaped belt in a predetermined traveling direction is provided at an appropriate position, a loading means is provided at each of the loading stations, and an unloading means is provided at each of the unloading stations.

(2) In the above item (1), at any one of the unloading stations, the belt-like belt is wound around the pair of upper and lower return pulleys in a substantially S-shape, below and below the upper return pulley. Above the running part of the belt-like belt after being sent out from the folding pulley, the unloading means is disposed so as to receive the load falling when the belt-like belt runs around the upper folding pulley, Then, one of the return pulleys is turned by a driving unit to be a drive pulley.

(3) In the above item (2), the position of the lower folding pulley can be adjusted in the traveling direction of the belt-shaped belt.

(4) In any one of the above items (1) to (3), the belt-shaped belt is run in a pipe shape at an intermediate portion of any one of the load transport paths.

(5) In any one of the above items (1) to (4), most of the belt-shaped belt, except for the traveling portion of the unloading tent in the circulation path, is rolled into a pipe shape and traveled. In the running part of the loading station, the side edges of the strip rolled into a pipe are locally pushed open, from which the loading means supplies the load onto the strip.

(6) In any one of the above items (1) to (5), three or more load transport paths are provided along the circulating path of the belt-shaped belt.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. (1) is a belt-shaped belt used as a transport medium, which is made of a flexible material such as rubber or soft synthetic resin, and is formed by joining terminals in a horizontal loop so that the terminals are vertically connected. It forms an endless belt completely different from the conventional endless belt that forms a loop in the direction, and is supported so as to run endlessly clockwise in FIG.

FIG. 1 shows an example of a layout of a load transfer path in an outdoor construction site or a factory where a large number of load transfer paths are required. In this example, four load stations (L1) to (L1) to ( L
4) and four unloading stations (D1) to (D4),
Four load transport paths for transporting the conveyed material (2) such as powders from each of the loading stations (L1) to (L4) to the unloading stations (D1) to (D4) as seen from the arrow. (B1) to (B4), and the belt-shaped belt (1)
1) to (B4) are arranged so as to sequentially circulate such that the loading stations (L1) to (L4) are on the upstream side.

Each of the loading stations (L1) to (L4) has a supply hopper for supplying a conveyed article (2) onto a belt-like belt (1).
Loading means such as (3), and unloading station (D1)
(D4) is provided with a loading / unloading means such as a load receiving hopper (4) for receiving the goods (2) supplied from the loading stations (L1) to (L4).

The belt belt (1) is connected to a loading station (L
Except for 1) to (L4) and the unloading stations (D1) to (D4), they are supported by a plurality of support frames (5) arranged at substantially constant intervals along the traveling path, And run round. Each support frame (5) is connected by a plurality of connecting rods (6) in the longitudinal direction.

The belt-like belt (1) is used for an unloading station.
The lower surface and both side surfaces are supported by a plurality of rounding rollers (7) provided immediately after passing through (D1) to (D4), and gradually rounded in a gutter shape in the running direction. As shown in the figure, the roller is guided by a plurality of shape-retaining rollers (8) axially mounted on a support frame (5), and is rounded into a pipe shape. The vehicle travels while maintaining the pipe shape while being supported by (8).

The endless belt (1) passing through the loading stations (L1) to (L4) is rolled into a pipe by a plurality of left and right pairs of opening rollers (9) suspended from above. The end is forcibly pushed open to form a carry-in port (10), and then rounded again and supported by a plurality of shape-retaining rollers (8) of a support frame (5) to maintain a pipe shape. To run.

The conveyed material (2) is fed into the carry-in port (10) from the supply hopper (3), wrapped by the endless belt (1) rounded in a pipe shape, and conveyed in the direction of the arrow. Are transported to the unloading stations (D1) to (D4).

In front of the unloading stations (D1) to (D4), the endless belt (1) rolled into a pipe shape is pushed and opened by a plurality of left and right opening rollers (11) suspended from above. It is developed into a flat plate.

The developed belt-like belt (1) is moved downward from above onto upper and lower folding pulleys (12) and (13) provided at the unloading stations (D1) to (D4) and rotatable around a horizontal axis. After being wrapped in an S-shape, the paper is sent out in the original traveling direction.

That is, the unloading stations (D1) to (D
4) When passing through the belt-like belt (1), the belt-like belt (1) is unfolded in a flat plate shape, from the upstream side before being wrapped around the upper folding pulley (12) and from the lower folding pulley (13). A step (14) in which the downstream side is lower than the upstream side is formed between the sheet and the downstream side after being sent out.

The upper turn-back pulley (12) is driven by driving means (not shown) such as a motor to form a belt-like belt.
(1) is a drive pulley for transmitting a driving force for circulating in a clockwise direction in FIG.

The lower folding pulley (13) acts as a driven pulley and is provided so as to be adjustable in the direction of the arrow along the running direction of the belt-like belt (1), as shown in FIGS. By adjusting the position, the degree of tension of the belt-shaped belt (1) can be adjusted.

The belt-shaped belt (1) sent out from the lower turn-back pulley (13) is rounded into a pipe shape as described above, and travels on the curved portions (R1) to (R5) to move downstream. Traveling toward the load transport path.

It is preferable that a twist preventing device for preventing the belt-like belt (1) from being twisted or a twist correcting device (not shown) be installed in the curved portions (R1) to (R5).

At the unloading stations (D1) to (D4), a discharge conveyor (15) serving as unloading means oriented in a direction substantially perpendicular to the traveling direction of the belt-shaped belt (1) is provided with an upper folding pulley ( 12) Below and below the return pulley (1
3) Above the running part of the belt belt after being sent out,
That is, it is disposed on the step (14).

The transported object (2) falls from the step (14),
It is conveyed in the direction of the arrow by the discharge conveyor (15) and is carried out to the load receiving hopper (4).

It is preferable that the interval between the two return pulleys (12) and (13) in the traveling direction of the belt-shaped belt is a necessary and sufficient interval for disposing the discharge conveyor (15).

The present invention is not limited to the above-described embodiment, and various modifications can be made as follows, for example.

(I) In the above-described embodiment, the belt-like belt (1) is rolled into a pipe shape in the load carrying paths (B1) to (B4) so as to wrap and carry the goods (2). Furthermore, in the curved portions (R1) to (R5), the pipe was rounded, but instead, the belt-like belt (1) was installed so as to run endlessly in the horizontal direction while keeping the belt-like belt (1) in a flat belt state. Is also good. In this case, a guide roller inclined to guide the belt-shaped belt (1) in a twisting direction is provided so as to absorb a difference in curvature between the curved portions (R1) to (R5).
It is preferable to provide a guide roller at the exits of the curved portions (R1) to (R5) for guiding the twist to return to the original state.

(II) The number of load transport paths is not limited to four, but may be at least two or more. Preferably, the number is three or more.
The cost can be significantly reduced as compared with the case where the belt conveyor devices are individually arranged as in the related art.

(III) All loading stations (L1) to
In (L4), either the upper or lower return pulley (12) (1
It is not necessary to drive 3) by the driving means, and only a part of the return pulleys (12) or (13) may be driven as necessary.

(IV) As shown in a modified example shown in FIG. 5, the conveyed object (2) dropped from the upstream side of the belt-like belt (1) to the step portion (14) of the belt-like belt (1) as it is. 1) A first discharge port (16a) leading up and a second discharge port leading to a discharge conveyor (15).
A tripper (16) having an outlet (16b) is provided.
By switching the switching damper (16c) provided in (16), the conveyed article (2) can be directly fed onto the belt belt (1) on the downstream side or discharged to the discharge conveyor (15). Alternatively, a part of the conveyed article (2) may be discharged to the discharge conveyor (15), and the remaining part may be directly fed to the downstream belt-like belt (1).

[0034]

According to the present invention, the following effects can be obtained. (a) According to the first aspect of the present invention, unlike the related art, there is no need to separately arrange a belt conveyor device for each load transport path, and a single belt-shaped belt is provided on all of those load transport paths. Since the same work can be performed by circulating the belt, most of the belt-shaped belt can be effectively used, and the driving energy of the belt can be reduced, and the equipment cost can be reduced.

In particular, in the conventional belt conveyor device, the return side of the belt is hardly used for conveying the load. However, according to the present invention, there is no concept of such a return side, and the running path length of the belt-shaped belt is not provided. The whole can be used effectively.

(B) According to the second aspect of the present invention, the belt-shaped belt is wound around the two return pulleys in an S-shape, thereby discharging the conveyed load and driving the belt-shaped belt. Can serve two purposes.

In particular, when the belt is rotated horizontally, it is not possible to apply a large driving force to the belt by simply rotating the rollers supporting the horizontal belt with a motor or the like. Since the folding pulley around which the belt-like belt is looped is rotated by the driving means to drive the belt-like belt in the traveling direction, the belt-like belt can be driven strongly.

(C) According to the third aspect of the present invention, the slack of the belt can be effectively removed, and the belt can be kept in an optimal tension state, whereby the driving force of the driving means can be applied to the belt. It can be transmitted reliably.

(D) According to the invention described in claim 4, the load is:
Since it is wrapped in a belt-shaped belt that is rolled into a pipe, scattering of the load is prevented, and rainwater and the like do not enter the load. In addition, the belt-like belt is difficult to bend to the side easily in the state of the flat belt, but can be easily bent to the side by rolling it into a pipe shape. It makes sense if you can't.

(E) According to the fifth aspect of the present invention, since the belt-like belt is largely rounded into a pipe shape, the belt-like belt can be easily bent to the side, and the belt-like belt is endless in the horizontal direction. The run is practically possible.

That is, if the belt belt is run endlessly in the horizontal direction in the state of the flat belt, a large difference occurs between the inner edge and the outer edge of the belt, and the difference must be compensated for by the elasticity of the belt. Although it is practically difficult to do so, by rounding most of the belt-like belt into a pipe shape, the above difference is reduced, and the flexibility of the belt-like belt to the side is improved. Endless running in the horizontal direction is substantially enabled.

In the loading station, it is only necessary to locally expand the side edges of the belt-shaped belt which is rolled into a pipe, so that the loading station can be freely set and its position can be easily changed. .

Further, by rolling the belt-like belt into a pipe shape, effects similar to the above-mentioned effect (d) such as prevention of scattering of a load and prevention of rainwater or the like from entering the load can be achieved.

(F) By arranging three or more load conveying paths along the belt-shaped belt circulating path as in the invention according to claim 6, compared with the case where a conventional belt conveyor is used. The cost can be significantly reduced.

[Brief description of the drawings]

FIG. 1 is a plan view of an embodiment of the present invention.

FIG. 2 is a perspective view of a main part of the loop type belt conveyor device.

FIG. 3 is a view taken in the direction of the arrow III in FIG.

FIG. 4 is an enlarged sectional view taken along the line IV-IV of FIG. 1;

FIG. 5 is a side view of a main part in a modified example of the present invention.

FIG. 6 is a plan view when a plurality of conventional belt conveyor devices are arranged.

[Explanation of symbols]

 (1) Belt belt (2) Conveyed object (3) Supply hopper (loading means) (4) Unloading hopper (unloading means) (5) Support frame (6) Connecting rod (7) Rounding roller (8) ) Shape keeping roller (9) Opening roller (10) Transport entrance (11) Opening roller (12) Folding pulley (drive pulley) (13) Folding pulley (driven pulley) (14) Step section (15) Ejection conveyor (Unloading means) (16) Tripper (16a) First outlet (16b) Second outlet (16c) Switching damper (B1)-(B4) Load transfer path (L1)-(L4) Loading station (D1 )-(D4) Unloading station (R1)-(R5) Curve section

Claims (6)

[Claims] 1. An endless belt belt is circulated through a plurality of load transporting paths connecting different loading stations and unloading stations, and is supported so as to run endlessly in a horizontal direction. A driving means for driving the belt belt in a predetermined traveling direction is provided at an appropriate position on a road, a loading means is provided at each of the loading stations, and an unloading means is provided at each of the unloading stations. Loop type belt conveyor device. 2. In any one of the unloading stations, the belt-shaped belt is wound around a pair of upper and lower folding pulleys in a substantially S-shape, and is fed from the lower and lower folding pulleys below the upper folding pulley. Above the running portion of the later belt-shaped belt, unloading means is disposed so as to receive a load falling when the belt-shaped belt runs around the upper folding pulley, and further, any one of the folding pulleys is disposed. 2. The loop belt conveyor device according to claim 1, wherein the drive belt is rotated by a drive means to form a drive pulley. 3. The loop-type belt conveyor device according to claim 2, wherein the position of the lower folding pulley is adjustable in the traveling direction of the belt-shaped belt. 4. The loop type belt conveyor device according to claim 1, wherein a belt-shaped belt is run in a pipe shape at an intermediate portion of any one of the load conveying paths. 5. A belt-shaped belt, which is rolled in a pipe shape for most of the belt-shaped belt except for a running portion of the unloading station in a circulation path, and is rolled in a pipe-shaped portion in a running portion of a loading station. 2. Locally pushing open both side edges of the belt, from which the loading means supplies the load onto the belt-like belt.
5. The loop-type belt conveyor device according to any one of 4. 6. The loop-type belt conveyor device according to claim 1, wherein three or more load conveying paths are arranged along the circulating path of the belt-shaped belt.