JPH10181823A - Vertical belt conveyor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vertical belt conveyor causing no fall of loads placed thereon. SOLUTION: A vertical belt conveyor conveys a load of small pieces held between its two belts 1 and 2 moving vertically or steeply at the same speed. A travel support mechanism 100A for the double belt constituted of the two belts 1 and 2 comprises a left and a right pair of rotatable pressure rollers 10L and 10R and a roller swing mechanism 20A for supporting rotary shafts projecting from both ends of the rollers. The inside ends of the rotary shafts of the rollers 10L and 10R are pined on one-side ends of links 12 to suspension mechanisms 24, such that their supporting points are situated at the centers of curvature of the deformation loci of the belts 1 and 2 which curvedly deform according to loads to be conveyed held in the double belt. A hydraulic cylinder 30 is pined at the tip of its piston rod on the other ends of one-side links 12 so as to press one-side rollers 10L and 10R against the double belt through the links 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vertical belt conveyor device, and more particularly, to a vertical belt conveyor which sandwiches and conveys a conveyed product between double belts which run in the same direction at the same speed and run endlessly. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vertical belt conveyor device which is configured to prevent a conveyed material between two belts from falling off and falling from an overlapping edge of a belt while moving vertically or steeply.

[0002]

2. Description of the Related Art In a conventional horizontally movable carrier type flat belt conveyor device, a belt for loading and transporting a conveyed product is provided with a pair of central support rollers arranged at a plurality of locations at substantially equal intervals in the belt traveling direction and a pair of left and right. The conveyed material is transferred while rolling and moving on the side rollers. Similarly, the return side belt is configured to roll and move on return rollers arranged at a plurality of locations. Then, a cross beam-shaped pedestal (conveyor frame) that supports these support rollers, side rollers, and return rollers at appropriate intervals in the belt running direction is supported on the ground via a plurality of pillars. I have.

On the other hand, when there is a vertical drop in the transfer direction, two overlapping belts are moved at the same speed in the same direction between two points including a vertical or steeply inclined state.
2. Description of the Related Art A vertical belt conveyor device that conveys a conveyed object between heavy belts is known. In this vertical belt conveyor device, in a vertical state or a steeply inclined state, a mechanism is required to press and urge the two belts with the goods interposed therebetween so that the goods do not overflow to the outside in a substantially close contact state. As an example, for example, as shown in FIG. 11, the overlapping both ends of the double belts 302a and 302b are
End press rollers 303a, 30 rotatably mounted on
3b, the center of the belt width is sandwiched by a pair of pressing rollers 304a, 304b on both sides, and pressing mechanisms 305, 305 (not shown) including compression coil springs 305a, 305b (not shown). Double belt 3 from both sides
02a and 302b are pressed and held so as to be polymerized. In this method, the pressing rollers 304a and 304b or the end pressing rollers 303a
The end pressing rollers 303b are not only disposed on the same cross section as shown in FIG. 12, but also staggered at predetermined intervals in the belt running direction (the depth direction of the paper). I was using.

Another method is to use a double belt 30.
2a and 302b are overlapped and both ends are overlapped by end pressing rollers 303a and 303b, and at a position separated from the end pressing rollers 303a and 303b by a predetermined distance in the belt running direction, as shown in FIG. Only one side is rotatable around pin joint 309, and
By a pressing mechanism 308 including a tension coil spring 308a, a pair of right and left pressing rollers 306 (right pressing roller 6R) is provided.
And the left pressing roller 306L, the right pressing roller 307R and the left pressing roller 307L).
A method of pressing and holding 02a and 302b so as to be polymerized has also been adopted.

[0005]

However, the following problems have been encountered in the vertical belt conveyor device provided with such conventional pressing mechanisms 305 and 308. In a vertical belt conveyor device having such a pressing mechanism 305, end pressing rollers 303a, 30 for overlapping and sealing the double belts 302a, 302b with each other.
3b are arranged in the same cross section, or are arranged in a staggered manner (alternately) at equal intervals along the belt running direction (conveying direction).
Since the pressing mechanism 04b is a pressing mechanism that advances and retreats at a right angle in the belt width direction at the center of the belt, there is a problem that when a conveyed material is interposed between the two belts, the running resistance due to the bending of the belt is large. In addition, as shown in FIG. 11, there is no problem when the goods interposed between both belts are conveyed in a substantially symmetrical distribution, but a large lump is mixed in the goods,
In addition, when this large block is interposed near one of the left and right edges, the pressing force by the pressing mechanism 305 is equal to the left and right, and there is a possibility that a gap may be generated on the opposite side.
There has been a problem that the loose cargo is dropped from the generated gap and falls. On the other hand, the pressing mechanism 308 in FIG. 12 has a pair of left and right pressing rollers 306R and 306L at the center of the belt, and has a structure that rotates with the pin joint 309 as a rotation fulcrum. In the interposed state, the falling-down from one side is slightly improved as compared with that of the pressing mechanism 305, but the left and right pressing rollers 306R and 306L (or the pressing rollers 307R and 307R,
07L) presses the belts 302a and 302b with the urging force of one tension coil spring, and therefore the pressing rollers 306R and 306L (or the pressing rollers 307R and 307L) are still given the same pressing force. It is difficult to completely adhere both ends of the belt to the load. In the pressing mechanism 5, the end rollers 302a, 30
2b, the both ends of the belt are superimposed, and a belt is pressed in the direction perpendicular to the surface of the belt with a conveyed material interposed therebetween, or the pressing mechanism 308 rotates around a rotation fulcrum provided at a position distant from the side of the belt surface. Since the belt is curved, the curved locus of the belt and the locus of the contact point of the press roller (the rotational locus of the center point of the contact surface between the press roller and the belt surface) become inconsistent.
There is a problem that an excessive force is applied to the belt bending deformation and the belt life is relatively short.

[0006]

[Means for Solving the Problems] By solving the above problems,
In order to supply a vertical belt conveyor device which is free of load spill and has a long belt life, the present invention employs the first belt conveyor device.
According to the invention, in a vertical belt conveyor device for sandwiching and transporting a conveyed product made of loose materials between two belts that are superimposed on each other and run at the same speed in a vertical direction or a steeply inclined direction, A traveling support mechanism for the double belt includes a pair of left and right pressing rollers disposed on both sides of the double belt and abutting against the outer surface of the double belt, and rotating shafts extending at both ends of the pressing roller. , And the roller oscillating mechanism pin-joins the outer end of the rotation shaft of each pressing roller to a frame extending in the running direction outside the double belt. At the same time, the position of the pin fulcrum to be pin-joined to the frame is set at the center of curvature of the deformation trajectory of the belt that bends and deforms according to the amount of the conveyed material sandwiched between the double belts. Pin-joined A fluid pressure cylinder is provided at the other end of the link, the tip end of a piston rod being pin-joined to press the pressing roller in the direction of the double belt via the link, and an edge of the double belt is provided. In this configuration, a pair of end pressing rollers on both sides that roll while gripping by superposing are arranged at appropriate intervals in the belt running direction.

According to a second aspect of the present invention, in the first aspect, the traveling support mechanism on one side and the traveling support mechanism on the other side of the double belt are appropriately separated from each other in the traveling direction of the double belt. And staggered alternately with each other.

According to a third aspect of the present invention, in the first and second aspects, a tip end portion of the piston rod of the hydraulic cylinder is provided.
The other end of each of the links pin-joined to the inner ends of the rotating shafts of the pair of right and left pressing rollers is pin-joined in a symmetrical shape so as to press and bias the pair of right and left pressing rollers integrally.

According to the fourth aspect of the present invention, the roller swing mechanism of the pair of right and left pressing rollers is separately provided, and the pressing rollers of the pair of right and left pressing rollers are separately and independently biased. I can do it.

According to a fifth aspect of the present invention, in the first to fourth aspects, the end pressing rollers are alternately arranged in a zigzag pattern so as to abut on the opposite belts in the belt running direction and roll. In addition, the belt contact position of the middle end pressing roller among the three end pressing rollers adjacent to the belt is located inside an imaginary straight line connecting the belt contact positions of the end pressing rollers at both ends (at both ends). (The pressing roller side), and the driven length was set to 2 to 5% of the distance between the belt contact points at both ends.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present invention, a vertical belt conveyor device for sandwiching and transporting a bulk material between two belts which are superimposed on each other and run at the same speed in a vertical direction or a steeply inclined direction. And a pair of left and right pressing rollers disposed on both sides of the double belt and abutting against the outer surface of the double belt, respectively, and the pressing roller, A roller swinging mechanism for bearing a rotating shaft projecting at both ends of the roller, wherein the roller swinging mechanism extends the outer end of the rotating shaft of each pressing roller in the running direction outside the double belt. And the pin fulcrum to be pinned to the frame is set to the center of curvature of the deformation locus of the belt that bends and deforms according to the amount of the conveyed material sandwiched between the double belts. , The rotation A tip end of the piston rod is pin-joined to the other end of the link pin-joined to the inner end of the pin, and a fluid pressure cylinder is provided through which the pressing roller is urged in the direction of the double belt. Since a pair of end pressing rollers on both sides which roll while gripping and overlapping the edges of the double belt are arranged at appropriate intervals in the belt running direction, both double belt edges are provided. Even if the degree of contact between the belts is improved and the amount of goods interposed between the two belts of the double belt changes, and the curved state of the belt changes greatly, the rotation fulcrum position of the roller swinging mechanism is changed by the belt deformation. Since the belt is set at the center of curvature of the locus, the belt edge is always kept in a state in which two belts are in close contact and overlapped with each other. And prevent changes in the conveyed product capacity. Since the belt bending deformation due is smoothly performed, a long belt life.

In the second invention, the traveling support mechanism on one side and the traveling support mechanism on the other side of the double belt are alternately staggered from each other at an appropriate distance in the traveling direction of the double belt. With this arrangement, even if the volume occupied by the conveyed material interposed between the double belts is particularly large, there is a margin for the belt to expand and deform, and the belt can absorb large bending deformations without difficulty, thus prolonging the life of the belt. There is.

According to the third aspect of the invention, the other ends of the links, which are respectively pin-connected to the inner ends of the rotating shafts of the pair of right and left pressing rollers, are pin-connected to the distal end of the piston rod of the fluid pressure cylinder in a symmetrical shape. Since the pair of right and left pressing rollers are pressed and urged integrally, there is no variation in the particle size distribution, and a relatively small particle size without large lumps is transported. The roller swinging mechanism of the left and right pressing rollers can be shared, compared to the case where the belt is symmetrically deformed in a curved manner, and the structure is simplified, the equipment cost is reduced, and the maintenance becomes easier. .

Conversely, in the fourth invention, the roller swing mechanism of the pair of left and right pressing rollers is separately provided, and the respective pressing rollers of the pair of left and right pressing rollers are separately and independently biased. When handling bulk materials with relatively large lumps as a conveyed material, the large lumps intervene near one edge of the double belt and cause the belt to be bent and deformed. The left and right roller swinging mechanisms swing (rotate) independently of each other even if the left and right are not symmetrical, so that no gap is generated at the opposite edge, and thus the transported article falls off. And fall can be prevented. That is, the third
It is desirable that the inventions of the fourth and fourth aspects be properly used depending on the properties (material type, particle size distribution, mixing ratio of large lumps, etc.) of the bulk material to be transported.

In the fifth invention, the end pressing rollers are arranged in a zigzag pattern so that the end pressing rollers alternately contact the opposite belts in the belt running direction and roll.
The belt contact position of the middle end pressing roller of the three adjacent end pressing rollers is located inside the imaginary straight line connecting the belt contact positions of the end pressing rollers at both ends (on both end pressing roller sides). ), And the length of the run-in is set to a length of 2 to 5% of the distance between the belt contact points at both ends, so that the degree of adhesion of the double belt is further improved. Hateful.

[0016]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 10 relate to an embodiment of the present invention. FIG. 1 is an overall schematic side view of a vertical belt conveyor device (first embodiment), and FIG. 2 is a vertical belt conveyor device (second embodiment) showing another embodiment. Example) is a schematic side view of the entirety, FIG. 3 is a belt travel diagram of a vertical belt conveyor device (first embodiment),
FIG. 4 is an overall longitudinal sectional view of the traveling support mechanism (first embodiment), FIG. 5 is an overall longitudinal sectional view of the traveling support mechanism (second embodiment), and FIG.
7 is a front view of the end pressing roller, FIG. 7 is a side view of a main part showing the arrangement of the pressing roller and the end pressing roller, FIG. 8 is a piping system diagram to a fluid pressure cylinder (pneumatic cylinder), and FIG. FIG. 10 is a cutaway perspective view of a main part of a chute of a conveyed object receiving section according to another embodiment.

The vertical belt conveyor device 200 of the present invention
Is a belt conveyor (for example, a vertical belt conveyor device 200 shown in FIG.
A) or a belt conveyor apparatus (vertical belt conveyor apparatus 200B shown in FIG. 2) for transporting in a steeply inclined direction which is almost vertical. FIG. 3 is a traveling diagram of the belt of the vertical belt conveyor device 200 (showing a belt traveling route and a main roller arrangement).

In FIGS. 1 and 2, the lower belt 1 is
The upper belt 2 is a driven belt that is driven by the lower belt 1 via the transported material M, which is a driving belt that greatly contributes to the transport of the transported material (transported material) M. Belts 1, 2
Are the drive pulley 3a and the head pulley 3b, respectively.
, And travels in accordance with the rolling of the tail pulleys 4a and 4b and the vent pulleys 5a and 5b on the way. In a region where the belts 1 and 2 are in contact with each other via the conveyed material M, as shown in the drawing, a traveling support mechanism 100 for the belts 1 and 2 is provided at predetermined intervals as needed. Numeral 7 is a supply chute for a conveyed object. Immediately below the supply chute 7, at the rising portion of the belt 2, and at the rising vent of the belt 1,
A normal support roller 6 with a close interval is provided.

These vertical belt conveyor devices 200A,
The traveling support mechanism 100 of the double belts 1 and 2 used in the 200B has the same structure. Hereinafter, the details will be described.

The traveling support mechanisms 100 for the double belts 1 and 2 for holding the conveyed object M are disposed on both sides of the double belts 1 and 2, respectively, and contact the outer surfaces of the double belts 1 and 2 to roll. A pair of moving right and left pressing rollers 10 (right pressing roller 10
R, left holding roller 10L) and a roller swinging mechanism 20 that supports a rotating shaft 10a protruding at both ends of the holding roller 10.
It consists of

The roller swing mechanism 20 can be roughly classified into two types. FIG. 4 shows a traveling support mechanism 1 having a roller swing mechanism 20A of a first type.
FIG. 5 shows a traveling support mechanism 100B provided with a roller swing mechanism 20B of the second type.

The roller supporting and swinging mechanism 20A shown in FIG. 4 is configured such that the outer end of the rotating shaft 10a of each of the pressing rollers 10 is pin-connected to a frame 22 which extends in the running direction outside the double belts 1 and 2. At the same time, the position of the pin fulcrum 22a that is pin-joined to the frame 22 is set to the center of curvature of the deformation locus of the belt that bends and deforms according to the amount of the conveyed material sandwiched between the double belts. Link 1 pinned to the end
The piston rod 30a of the fluid pressure cylinder 30 which presses and urges the inner end in the direction of the double belt via the second member 2 is moved forward and backward. The fluid pressure cylinder 30 is fixed to a frame 24 extending in the belt running direction. The fluid pressure cylinder 30
May be an air cylinder or a hydraulic cylinder. Further, a shock absorber 30A may be used instead of the fluid pressure cylinder 30. The roller support swing mechanism 20A of FIG.
A major difference from the roller supporting and swinging mechanism 20B of FIG. 5 described later is that a pair of right and left pressing rollers 10R and 10L are pressed by one fluid pressure cylinder 30. On the other hand, the roller support swing mechanism 20B includes independent fluid pressure cylinders 30, 30 that move independently of the pair of right and left pressing rollers 10R, 10L, and the rollers 10R, 10L are separately provided. It can swing freely.

FIG. 5 shows a roller swing mechanism 20B according to a second embodiment. The major difference from the roller swing mechanism 20A of the first embodiment is that the left and right pressing rollers 1
The structure is such that each of 0R and 10L is separately pressed and urged. Therefore, the fluid pressure cylinders 30, 30 are arranged in parallel on the left and right.

FIG. 6 shows the arrangement of the end pressing roller 40. As shown in FIG. 6, the side of the belt 1 which contacts the ends of the belts 1 and 2 and rolls as the belts 1 and 2 advances. The end rollers 40A, 40A and the four end rollers 40B, 40B on the side of the belt 2 may be arranged on the same cross section, but usually, as shown in FIG. The end rollers 40 are arranged in a staggered manner so that the end rollers 40 alternately abut on the opposite belts in the belt running direction and roll. Then, as shown in FIG. 7, an end pressing roller 40 is disposed on the opposite side where the pressing roller 10 is located, as much as possible. Note that the end pressing roller 40 and a housing 40 b that supports a rotation shaft 40 a of the end pressing roller 40.
May be fixed to the frame 28, but rather, the fluid pressure cylinder 30 and the shock absorber 30A are interposed between the housing 40b and the frame 28 to hold the end portion in the direction of the belt edge. It is better to press and bias the roller 40.

In order to enhance the adhesion between the double belts 1 and 2, three adjacent end pressing rollers 40B and 40B are provided.
A, 40B, the belt contact position of the middle end pressing roller 40A is positioned inside (a both ends pressing roller side) the imaginary straight line connecting the belt pressing positions of the both end pressing rollers 40B, 40B. It is set to the position where it is driven in, and the driven-in length is set to a length of 2 to 5% of the distance between the belt contact points at both ends. Thus, the belts 1 and 2 are not straight,
By moving the object M in a zigzag manner,
The degree of adhesion between the edges of the belts 1 and 2 holding the belt is increased so that the conveyed material M does not overflow from the belt ends. The reason for limiting the above-mentioned end roller drive length to a length of 2 to 5% of the distance between the belt contact points at both ends will be explained. The effect of increasing the degree of adhesion due to too small a drive amount when 2% or less is obtained. This is because even if the amount of run-in exceeds 5%, the degree of adhesion does not increase any more.
This is because the frequency of bending may increase and the life of the belt may be shortened, and the running resistance of the belt may increase, thereby increasing the load on the motor for driving the belt and increasing the running cost.

FIG. 8 is a piping diagram for supplying compressed air to the hydraulic cylinder (air cylinder) 30 for the press roller 10 and the hydraulic cylinder (air cylinder) 30 for the end press roller 40. The compressed air supplied by the air compressor 80 is sent to the hydraulic cylinder 30 by compressed air pipes 82 and 84. When a hydraulic cylinder is used as the fluid pressure cylinder 30, a hydraulic pipe is naturally provided. When the shock absorber 30A is used instead of the fluid pressure cylinder 30, these pipes are not required, which is simple. The shock absorber 30A is
An appropriate pressing force is selected from commercially available ones and used. Although the shock absorber is originally intended for absorbing the shock, an actuator developed for use as an “air spring” is employed.

FIG. 9 illustrates a large lump center guiding mechanism for a conveyed article disposed inside the chute 50 of the conveyed article receiving portion. In the chute 50, a pair of upper and lower inverted pyramid-shaped frame members 6 are provided.
A wire net 60a was stuck between 0 and 60. Thus, the large lump supplied into the chute 50 is
a to selectively drop to the central portion in the width direction of the belt and prevent uneven distribution to the edge of the belt. FIG.
Shows another embodiment of a large lump central guide mechanism for a conveyed object, and is formed by a plurality of grizzly bars 70 which are arranged in parallel at a slant in a Yatsuhashi shape (gutter shape) having a lower center portion and a higher end portion. . 9 and 10, the fine particles and the powder are
Although it passes through the mesh and the gap between the grizzly rivers and falls directly below, a large lump larger than the mesh and the gap between the bars is
Oa and the center of the belt are guided by the grizzly river 70 and fall intensively. Therefore, it is possible to prevent a conveyed object from being transported or dropping out of the belt end gap due to a decrease in the gripping force of the conveyed object on the opposite end of the belt caused by the large lump being pinched near the end of the belt.

The traveling support mechanism 10 constructed as described above
The vertical belt conveyor device 200A (first embodiment) and the vertical belt conveyor device 200B (second embodiment) shown in FIGS.
The operation of will be described. The transported material M is supplied onto one of the double belts 1 from the supply chute 7 on the side of the tail pulley, and is united by a belt driving device (not shown) and a drive pulley 3a that is rotated by the belt driving device, thereby forming the same in the same direction. As shown in FIG. 4 or FIG. 5, the horizontal portion, the vertical portion (or the steeply inclined portion), and the horizontal portion are interposed between the double belts 1 and 2, which advance while polymerizing at the same speed. It is transported, discharged from the upper edge, and transported to the next transporter or storage tank.

During this time, the conveyed object (transported object) M is transported by the double belts by the pressing force of the traveling support mechanisms 100A and 100B, that is, the pressing roller 10 and the fluid pressure cylinder 30 provided on the roller swinging mechanisms 20A and 20B. It is pinched by 1, 2 so that it does not overflow from the double belt, and 2
It is transferred integrally with the heavy belt.

In the case where the conveyed material M composed of loose bulk is of a uniform size having a fine particle size and a narrow particle size distribution, and there is almost no mixing of large lumps (cement powder,
The flour, synthetic resin, etc.) have a bilaterally symmetrical cross-sectional shape as shown in FIG. 4 when sandwiched between the double belts 1, 2. ,
Setting the pressing force of the pressing roller 10R and the pressing force of the pressing roller 10L to the same value does not impair the left-right symmetrical shape (if the left-right symmetrical shape is impaired, the conveyed object M is more likely to spill from one belt end). It is also important for. Therefore, for the transported material M having such properties, the traveling support mechanism 100A including the roller swing mechanism 20A of FIG. 4 is employed. At the same time, the roller swing mechanism of the right and left pressing rollers can be shared, the structure is simplified, the equipment cost is reduced, and the maintenance is facilitated.

On the other hand, in the case of a conveyed article M in which large lumps are frequently mixed in a bulk load (ore, limestone, etc.), the belt cross-sectional shape is often asymmetric as shown in FIG. When pressing is performed with the same pressing force of the left and right pressing rollers 10R and 10L as described above, a gap is generated at the edge of the belt where the conveyed material M is relatively small, from which the conveyed material M falls or There is a concern that the holding force between the belts of the conveyed object M may be reduced, causing a serious accident that the belt slides between the belts and falls downward due to the action of gravity. In particular, when a large lump is pinched near the edges of the double belts 1 and 2, this tendency is most pronounced, and a fatal situation is caused. Therefore, in the case of such a conveyed object M, the traveling support mechanism 100B having the roller swing mechanism 20B shown in FIG. 5 is employed to separately press the left and right pressing rollers 10R and 10L.・ By energizing, even for asymmetrical belt cross-sectional shapes, there is no gap at the belt edge,
In addition, it is possible to secure the integration of the transport object M and the belt, and to avoid the above-described unexpected situation.

The roller swing mechanism 20A, 20B of the present invention
Is, with the outer end of the rotating shaft of the press roller 10 as a rotation fulcrum,
Since the inner end of the rotating shaft is oscillated and urged in the double belt direction by the fluid pressure cylinder (or the shock absorber 30A) via the link, the oscillating movement of the pressing roller 10 is smoothly performed. In addition, the position of the center of rotation (pin fulcrum) of the swing of the press roller 10 is set at the center of curvature of the deformation trajectory of the belts 1 and 2 that bends and deforms according to the amount of the conveyed material sandwiched between the double belts. In addition, the expansion and contraction of the internal space of both belts 1 and 2 and the rotation (oscillation) movement of the pressing roller 10 substantially coincide with each other, and the belt bending deformation is performed smoothly and smoothly, so that the belt life is extended.

The pressing roller 10 can be arranged at the same cross-sectional position as shown in FIGS. 4 and 5, but particularly has a large transport capacity, a large cross-sectional area between the two belts, and a large belt cross-sectional deformation. In the vertical belt conveyor apparatus 200, the traveling support mechanism (pressing roller 10 and roller swing mechanism 20) 100 on the belt 1 side is separated from the traveling support mechanism 100 on the belt 2 side by a suitable distance in the double belt traveling direction. By alternately arranging the belts in a staggered manner (displaced in front of and in the depth of the plane of FIG. 4 and FIG. 5), the margin for belt bending deformation is increased and the life of the belt is extended. be able to.

As described above, in the vertical belt conveyor device 200 according to the present invention, the double belt 1,
2, the rotation fulcrum position of the roller oscillating mechanism 20 remains at the center of curvature of the belt deformation locus even if the amount of the goods M interposed between the two belts changes and the bending state of the belts 1 and 2 changes greatly. , The belt edge is always kept in a state where the two belts are closely adhered and superimposed, so that the load M of the conveyed material M from the belt edge can be almost completely prevented. In addition, since the belt is smoothly deformed due to the change in the capacity of the conveyed material, the life of the belt is long. In addition, the required number of end rollers 40 are arranged, and the belts 1 and 2 are advanced in a zigzag manner by giving a drive-in amount, so that the adhesion between the edges of both belts is improved.

[0035]

According to the belt conveyor device of the present invention described above, it is possible to operate safely and stably for a long period of time between two points, vertical or steep, without overflow. Since the service life of the belt can be maintained for a long time, the maintainability can be improved and the running cost can be reduced.

[Brief description of the drawings]

FIG. 1 is an overall schematic side view of a vertical belt conveyor device according to a first embodiment of the present invention.

FIG. 2 is an overall schematic side view of a vertical belt conveyor device according to a second embodiment of the present invention.

FIG. 3 is a belt travel diagram of the vertical belt conveyor device according to the embodiment of the present invention.

FIG. 4 is an overall vertical sectional view of a traveling support mechanism (first embodiment) according to the embodiment of the present invention.

FIG. 5 shows a traveling support mechanism (second embodiment) according to another embodiment of the present invention.
(Example) is an overall vertical cross-sectional view.

FIG. 6 is a front view of an end pressing roller according to the embodiment of the present invention.

FIG. 7 is a main part side view showing an arrangement of a pressing roller and an end pressing roller according to another embodiment of the present invention.

FIG. 8 is a diagram of a piping system to a hydraulic cylinder (pneumatic cylinder) according to an embodiment of the present invention.

FIG. 9 is a longitudinal sectional view of a chute of a conveyed object receiving section according to the embodiment of the present invention.

FIG. 10 is a cutaway perspective view of a main part of a chute of a conveyed object receiving section according to another embodiment of the present invention.

FIG. 11 is a sectional view of a conventional vertical belt conveyor device.

FIG. 12 is a sectional view of a conventional vertical belt conveyor device.

[Explanation of symbols]

 Reference Signs List 1 belt 2 belt 3a drive pulley 3b head pulley 4a tail pulley 4b tail pulley 5a vent pulley 5b vent pulley 6 support roller 7 supply chute 10, 10R, 10L holding roller 12 link 20, 20A, 20B roller swinging mechanism 22 frame 22a pin fulcrum 24 frame 28 Frame 30 Fluid pressure cylinder 30A Shock absorber 40 End pressing roller 40A End pressing roller 40B End pressing roller 40a Rotating shaft 40b Housing 40c Compression coil spring 50 Chute 50a Skirt rubber 60 Frame body 60a Wire mesh 70 Grizzle river 80 Air compressor 82 84 Compressed air piping 100, 100A, 100B Belt running support mechanism 200, 200A, 200B Vertical belt conveyor device 301 Belt 301a Carry Side belt 301b return side belt 302 head pulley 303 Terupuri 304 inlet 307 End cover 308 End cover 309 chutes M conveyed (transported object)

Claims (5)

[Claims] 1. A vertical belt conveyor device for sandwiching and transporting loose articles between two belts that are superimposed on each other and run at the same speed in a vertical direction or a steeply inclined direction. The traveling support mechanism of the double belt is
A pair of left and right pressing rollers disposed on both sides of the heavy belt and abutting against the outer surface of the double belt and rolling, and a roller swinging mechanism for bearing a rotating shaft protruding at both ends of the pressing roller, The roller swing mechanism is configured to connect the outer end of the rotation shaft of each pressing roller to a frame extending in the traveling direction outside the double belt, and to connect a pin fulcrum of the pin to the frame. The position is set at the center of curvature of the deformation trajectory of the belt that bends and deforms in accordance with the amount of the conveyed material sandwiched between the double belts, and the other end of the link pin-joined to the inner end of the rotation shaft is provided with a piston rod. A fluid pressure cylinder is provided, the leading end of which is pin-joined to press and urge the holding roller in the direction of the double belt via the link, and the edge of the double belt is overlapped and gripped. Rolling pair of end pushes on both sides A vertical belt conveyor device comprising a plurality of feed rollers arranged at appropriate intervals in the belt running direction. 2. The double-belt running support mechanism on one side and the running support mechanism on the other side are alternately arranged in a staggered manner with an appropriate spacing in the traveling direction of the double belt. Item 4. The vertical belt conveyor device according to Item 1. 3. A pair of left and right pins which are pin-joined to the inner ends of the rotation shafts of a pair of left and right holding rollers at the tip of the piston rod of the fluid pressure cylinder in a left-right symmetrical shape. 3. The vertical belt conveyor device according to claim 1, wherein the pressing roller is integrally pressed and urged. 4. A roller swing mechanism for a pair of left and right pressing rollers is separately provided, so that the pressing rollers of the pair of left and right pressing rollers can be separately and independently biased. The vertical belt conveyor device according to claim 1 or 2. 5. The end pressing rollers are arranged in a zigzag manner so that the end pressing rollers are alternately abutted on the opposite belts in the running direction of the belt so as to roll, and among three adjacent end pressing rollers. The belt contact position of the middle end pressing roller is set to a position that is driven inward (on both end pressing roller sides) from an imaginary straight line connecting the belt abutting positions of the end pressing rollers at both ends, and the run-in is performed. 5. The vertical belt conveyor device according to claim 1, wherein the length is set to 2 to 5% of the distance between the belt contact points at both ends.