JPH10279033A - Slant belt conveyer device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a slant belt conveyer device with a less noise, vibration, environmental polution and wear of a belt, and a low running cost and equipment cost, and no drop of a carrying goods which can carry a grat amount at a high speed. SOLUTION: Both carrier side belts are supported to the lower inner surface of an upper cylindrical pipe 10 out of a pair of upper/lower cylindrical pipes and an upper belt 1A out of return side belts is supported to an upper outer surface while contacting a belt end to a pair of right/left slide guide provided along an axial direction on the upper outer surface of the upper cylindrical pipe out of a pair of upper/lower cylindrical pipe and being guided and a lower belt 1B out of return side belts is supported to the lower inner surface of the lower cylindrical pipe 14 out of a pair of upper/lower cylindrical pipe and compressed air pipings 30, 40 extended along the belt running direction for communicating with a compressed air source and supplying the compressed air to the pouring hole are connected to the lower part of a pouring hole bored to the upper end center part of the upper cylindrical pipe and respective lowest part of both cylindrical pipes.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inclined belt conveyor device, and more particularly, to a method in which a conveyed material is sandwiched between two upper and lower double belts that run endlessly in the same direction at the same speed. The conveyor between the double belts does not fall off from the edge of the overlapped belt while the conveyed material between the double belts is steeply inclined. It relates to an inclined belt conveyor device that can be conveyed while floating by compressed air by being supported by three upper, lower, middle and three cylindrical pipes.
Moreover, it is intended to provide an inclined belt conveyor device that can be transported over a considerable long distance at a low running cost and at a low equipment cost.

[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. 14, 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 arranged on the same cross section as shown in FIG. 15, but also staggered by a predetermined distance 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, in such a conventional belt conveyor apparatus or vertical belt conveyor apparatus, a large amount of power is required to convey a large amount of articles over a long distance. In addition, there are the following problems due to restrictions on the rotation resistance and the number of rotations of various rollers. It was difficult to increase the speed due to the restriction of the belt conveyance speed. The work environment was degraded due to the noise generated by the rotation of the rollers. The equipment cost of a large number of rollers was large, and labor was required for maintenance. There was vibration of the equipment due to the rotation of the rollers. Life is short due to wear due to belt rolling and sliding.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems and to provide an inexpensive inclined belt conveyor device with a low facility cost,
According to the present invention, in the first invention, in the inclined belt conveyor device for sandwiching and transporting a conveyed object made of loose materials between two upper and lower belts that are superimposed on each other and run at the same speed in a steeply inclined direction, The upper and lower two belts each have an endless belt and a belt support trough provided with a plurality of compressed air injection holes in the belt running direction on both the carrier side and the return side of the belt in order to float the belt. Type inclined belt conveyor device,
The belt support trough is formed of a pair of upper and lower cylindrical pipes made of a resin pipe or a steel pipe, and both carrier-side belts are supported on the lower inner surface of the upper cylindrical pipe of the pair of upper and lower cylindrical pipes, and are formed of a return-side belt. The upper belt is supported on the upper outer surface while being guided by a pair of left and right sliding guides provided along the axial direction on the upper outer surface of the upper cylindrical tube of the pair of upper and lower cylindrical tubes while abutting the belt ends. The lower belt of the side belts is supported on the lower inner surface of the lower cylindrical tube of the pair of upper and lower cylindrical tubes, and is formed at the center of the upper end of the upper cylindrical tube and at the bottom of each of the two cylindrical tubes. A compressed air pipe connected to a pressure air source and supplying compressed air to the injection hole and extending along a belt running direction is connected to a lower portion of the injection hole, and the compressed air after the belt floating action is discharged to the cylindrical tube. Provided with an outlet port.

According to a second aspect of the present invention, in the first aspect, the upper and lower surfaces of the lower belt are inverted before and after the return belt is introduced into the lower cylindrical pipe after the lower belt is inverted at the edge of the apparatus. A belt reversing device to be operated was disposed before and after the lower cylindrical tube. Further, in the third invention, the belt reversing device includes a horizontal scissor roller disposed on the pulley side, a cylindrical support roller disposed on the lower cylindrical tube side, and an identical member provided at an intermediate portion between the two rollers. A rounding roller composed of a plurality of rounding rollers arranged in a cylindrical shape in cross section, or a pair of upper and lower inclined inner pressing rollers that support both ends of a bent belt and both ends of a bent belt from the inside in the same cross section. Alternatively, it is configured to be formed by an inclined roller which projects at a plurality of locations separated by a predetermined distance in the axial direction from the inclined support and which is projected and changed to abut and roll on the back surface of the belt.

According to a fourth aspect of the present invention, the belt reversing device includes a plurality of outlets for compressed air for floating the belt at a central portion in the belt width direction, which are in contact with the belt to be reversed. A plurality of curved plates, each of which is gradually and spirally curved in the reverse direction and provided with a compressed air pipe communicating with the jet port on the back side, are arranged in the belt running direction. In the fifth invention, the belt reversing device comprises a set of a plurality of circular cross sections each of which is extended in the belt running direction while the side surface abuts against the reversing belt and arranged in parallel at substantially equal intervals in the belt width direction. A plurality of sliding members each having a rectangular cross section are arranged in such a manner that the inclination direction is gradually changed little by little in the direction in which the belt is reversed in the belt running direction. Further, in the sixth invention, a pair of upper and lower pressing rollers abutting against the upper and lower surfaces of the cross-sectional central portion of the return side belt and the belt end portions of the return belt are provided between the belt reversing device and the lower cylindrical tube. It has a trough forming device which is composed of a pair of upper and lower scissor rollers which roll while sandwiching diagonally, and forming the cross section of the belt into a bowl shape.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present invention, there is provided an inclined belt conveyor device which sandwiches and transports a conveyed object made of loose materials between two upper and lower belts which are superimposed on each other and run at the same speed in a steeply inclined direction. The upper and lower two belts each have an endless belt and a belt support trough having a plurality of compressed air injection holes in the belt running direction for floating the belt on both the carrier side and the return side of the belt. A floating type inclined belt conveyor device, wherein each of the belt support troughs is formed by a pair of upper and lower cylindrical tubes made of a resin tube or a steel tube, and both carrier side belts are upper cylindrical tubes of the pair of upper and lower cylindrical tubes. The upper belt of the return side belt is axially provided on the upper outer surface of the upper cylindrical tube of the pair of upper and lower cylindrical tubes. The lower belt of the return side belt is supported by the lower inner surface of the lower cylindrical tube of the pair of upper and lower cylindrical tubes, while being guided while abutting the belt ends to the pair of right sliding guides, and The lower part of the injection hole formed at the center of the upper end of the upper cylindrical pipe and the lowermost part of each of the two cylindrical pipes communicates with a pressurized air source to supply compressed air to the injection hole along the belt running direction. An extended compressed air pipe is connected, and an exhaust port for discharging the compressed air after the belt floating action is provided in the cylindrical pipe. The levitation force allows the air to be moved while levitation occurs, and the conveyed object can be smoothly transported between two points having a considerable height difference with a small amount of power.

In a second aspect of the present invention, there is provided a belt reversing device for reversing the upper and lower surfaces of a return belt after the lower belt is reversed at an edge of the apparatus before and after the return belt is introduced into the lower cylindrical tube. Since the lower belt is disposed before and after the lower cylindrical tube, the return side belt of the lower belt is inverted by the belt reversing device and introduced into the lower cylindrical tube, so that the cross section is bent in a U-shape on the carrier side in the upper cylindrical tube. Since the belt also passes through the lower cylindrical tube while being bent in a U-shape on the return side, the wear phenomenon due to the sliding operation on the inner surface of the cylindrical tube at the end of the belt is reduced as compared with a belt which is not inverted on the return side. Is prolonged.

[0011] In the third invention, the belt reversing device is provided at a middle portion between the horizontal scissors roller provided on the pulley side, the cylindrical support roller provided on the lower cylindrical tube side, and the two rollers. A rounding roller composed of a plurality of rounding rollers arranged in a cylindrical shape on the same cross section, or a pair of upper and lower inclined inner pressing rollers for supporting both ends of a bent belt and both ends of a bent belt from the inside, respectively. The belt is made up of rollers or inclined rollers that protrude by changing the protruding angle sequentially at a plurality of locations separated by a fixed distance in the axial direction from the inclined support and project and abut and roll on the back of the belt. It is guided by each roller and smoothly inverted.
In the fourth invention, the belt reversing device comprises a plurality of compressed air jets for lifting the belt at the center in the width direction of the belt in contact with the belt to be reversed, each of which spirals in a direction in which the belt is reversed in the belt running direction. Curved little by little in order,
Since a plurality of curved plates provided with compressed air pipes communicating with the jet ports on the back side are arranged in the belt running direction, similarly, the belt is smoothly guided by the floating force of the compressed air. Inverted.

Further, in the fifth invention, the belt reversing device comprises a set of a plurality of belt reversing devices which extend in the belt running direction while the side surfaces abut against the reversing belt and are arranged in parallel at substantially equal intervals in the belt width direction. Since a plurality of sliding members having a circular cross section or a rectangular cross section are arranged in such a manner that the inclination direction is gradually changed little by little in the direction in which the belt is reversed in the belt running direction, the belt is slightly moved by each sliding member. The direction of inclination is changed by each step to smoothly reverse. And the sixth
In the invention of the above, a pair of upper and lower pressing rollers abutting on the upper and lower surfaces of the cross section central portion of the return side belt and the belt both end portions of the return belt are obliquely held between the belt reversing device and the lower cylindrical tube. It is composed of a pair of upper and lower scissors rollers that roll up and down, and has a trough forming device that forms a belt cross section in a bowl shape, so that the belt is smoothly introduced into the cylindrical tube without the edge end contacting the inner surface of the cylindrical tube. Therefore, unnecessary wear phenomenon is prevented.

[0013]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 13 relate to an embodiment of the present invention, and FIG. 1 is an overall side view of an inclined belt conveyor device.
FIG. 3 is a cross-sectional view taken along line AA of FIG. 1, FIG. 3 is a schematic side view showing a first embodiment of the belt reversing device, FIG. 4 is a schematic perspective view showing a second embodiment of the belt reversing device, and FIG. 6 is a schematic perspective view showing a third embodiment of the belt reversing device, FIG. 6 is a schematic perspective view showing a fourth embodiment of the belt reversing device, FIG. 7 is a perspective view of a sliding member of the belt reversing device, and FIG. FIG. 9 is a front view of the sliding body, FIG. 10 is a schematic perspective view showing a fifth embodiment of the belt reversing device, and FIG. 11 is a curved view of the belt reversing device of the fifth embodiment. FIG. 12 is a schematic perspective view of one of the face plates, FIG.
1 is a longitudinal sectional view of a trough forming apparatus according to an embodiment.

As shown in FIGS. 1 and 2, the inclined belt conveyor device 100 includes two upper and lower belts, namely, an endless smooth upper belt 1A and a lower belt 1B, which are superimposed on each other, and each of them is slanted vertically. It is wound between the head pulley 2A and the tail pulley 3A located between two points and between the head pulley 2B and the tail pulley 3B so as to be movable endlessly. The head pulley 2A and the tail pulley 3A, And head pulley 2
As shown in FIG. 2, a pair of upper and lower two cylindrical tubes, that is, an upper cylindrical tube 1 is provided at an intermediate portion between the upper cylindrical tube A and the tail pulley 3A.
0, passing through the belt support troughs (carrier-side belt support trough and return-side belt support trough) formed by the lower cylindrical tube 14;
Numeral 4 is a carrier-side belt support trough (which is formed of a cylindrical pipe made of a resin pipe or a steel pipe such as vinyl chloride or the like and is vertically connected by an air duct 32 to support the carrier-side belts of the upper belt 1A and the lower belt 1B. A carrier-side trough is hereinafter referred to as the lower inner surface of the upper cylindrical tube 10, and a return-side belt support trough (hereinafter, referred to as a return-side trough) for supporting the return-side belt of the upper belt 1 </ b> A is located at an upper portion of the upper cylindrical tube 10. A return-side belt support trough (hereinafter, referred to as a return-side trough), which corresponds to the outer surface and supports the return-side belt of the lower belt 1B,
It corresponds to the lower inner surface of the lower cylindrical tube 14.

As shown in FIG. 2, the upper cylindrical tube 10 and the lower cylindrical tube 14 are connected by an air duct 32 disposed along the belt running direction, and the belt running Inlets 22 drilled at approximately equal intervals in the direction
Compressed air supplied through the air supply pipe 20 through a is ejected to the outside from the uppermost part of the upper cylindrical pipe 10 to float the return side belt of the upper belt 1A. In this case, the return side belt of the upper belt 1A is placed on the upper outer surface of the upper cylindrical tube 10 in a convex shape instead of a concave shape and floats on the air. In order to prevent this, a pair of right and left sliding guides 26 each having a rectangular cross section extending in the belt running direction are disposed at both ends of the return side belt.

At the time of return of the upper belt 1A, both end surfaces of the belt move while sliding on the side surfaces of the slide guide 26. Therefore, in order to prevent abrasion of the both end surfaces of the upper belt 1A due to friction, the sliding guide 26 is provided. The material is made of synthetic rubber, and a surface layer made of ultra-high-molecular-weight polyethylene having a low friction coefficient of 0.07 to 0.22 and excellent in lubricity is attached to a side surface of the main body which is in contact with the upper belt 1A. Care is taken to reduce the wear of the belt and extend the life of the belt. Note that it is desirable to provide the protective cover 28 above the upper cylindrical tube 10 in order to prevent wind and rain from being applied to the upper belt 1A when the return-side belt of the upper belt 1A runs.

At the lowermost part of the upper cylindrical pipe 10, compressed air supplied through the air supply pipe 30 and the air duct 32 through the inlets 32 a formed at substantially equal intervals in the belt running direction is supplied. Inside, lower belt 1B
The upper belt 1A and the conveyed material M sandwiched between the two belts 1A and 1B are caused to float. The air after the floating action is discharged from the exhaust pipe 24.

Also, just like this, the lower cylindrical tube 14
An inlet 42a formed at substantially the same interval in the belt running direction is also provided at the lowermost part of the air supply pipe 40 through the inlet 42a.
In addition, the compressed air supplied via the air duct 42 enters the lower cylindrical tube 14 and floats the return side belt of the lower belt 1B. The air after the floating action is discharged from the exhaust pipe 43.

At one end of the lower belt 1B on the side of the tail pulley 3B, an inlet 4 for the conveyed material M is provided, and end covers (not shown) for covering the tail pulleys 3B, 3A and the head pulleys 2B, 2A are provided, respectively.
A chute (not shown) for discharging the transported material M is connected to a lower portion of the end cover. As shown in FIG. 2, a plurality of column bases 44 are fixed to the lower cylindrical tube 14 in the belt traveling direction, and a check walkway 45 is
a, a stand 46, a handrail 48, and the like.

Belt reversing devices 50 are provided between the head pulley 2B of the lower belt 1B and the lower cylindrical tube 14, and between the tail pulley 3B and the lower cylindrical tube 14.
Various types of the belt reversing device 50 can be adopted as shown in FIGS.

FIGS. 3, 4, and 5 show a belt reversing device 50 of the first embodiment, a belt reversing device 50A of the second embodiment, and a belt reversing device 50B of the third embodiment, respectively. As shown in FIGS. 3 to 5, a horizontal scissor roller 52 is provided on one pulley side, and a cylindrical support roller 52a is provided on the other lower cylindrical tube side. A rounding roller 54 (FIG. 3) or a cylindrical holding roller 59 (FIG. 4)
Alternatively, the inclined rollers 58 (FIG. 5) are respectively arranged.

That is, the horizontal scissor roller 52 sandwiches a flat belt horizontally from above and below.
Reference numeral 2a denotes a lower belt 1 in which a plurality of rollers are arranged in a semicircular shape, and a cross-section of the lower belt 1 having a semicircular shape with the lower cylindrical tube 14 protruding.
The return belt of B is maintained in the same shape, or the return belt is formed into a semicircular shape immediately before entering the lower cylindrical tube 14.

On the other hand, the rounding roller 54 rounds the return belt into a cylindrical shape, and is formed by arranging a plurality of (five to eight) rollers in the same cross section in a polygonal shape. The cylindrical holding roller 59 includes a vertical pressing roller 59a and a pair of upper and lower inclined inner pressing rollers 59b, 59b for supporting both ends of the bent return belt from the inside.

Further, as shown in FIG. 5, the inclined roller 58 protrudes from the inclined support 56 (generally, a pipe is used) at a plurality of locations axially separated from the inclined support 56 by sequentially changing the overhang angle. , And is configured to abut and roll on the back surface of the belt.

The belt reversing device 5 configured as described above
0 (shown in FIG. 3), 50A (shown in FIG. 4), 5
OB (shown in FIG. 5) turns the front and back surfaces of the return belt upside down when the return belt of the lower belt 1B passes from left to right in the drawing or from right to left in the drawing. .

FIGS. 6 to 9 show a belt reversing device 50C showing a fourth embodiment. For example, a plurality of belt reversing devices having a circular or rectangular cross section with the side surface in contact with the lower belt 1B are shown. A set (in the example of FIGS. 6 to 8, three sets) of sliding bodies 52A are arranged in parallel at substantially equal intervals so as to extend in the belt traveling direction. A plurality of sets of the sliding bodies 52A are arranged by gradually changing the inclination direction in the belt running direction along the reversing direction of the lower belt 1B. That is, in the belt reversing device 50C, the lower belt 1B is guided by the plural sets of sliding members 52A and transported while the upper and lower surfaces are reversed in a spiral shape. Therefore, the belt surface is the sliding body 52A.
Of the lower belt 1B to prevent wear due to friction on the sliding surface of the lower belt 1B.
Is made of a synthetic rubber body and a surface layer made of ultra-high-molecular-weight polyethylene having a low friction coefficient μ of 0.07 to 0.22 and excellent in lubricity, as in the case of the sliding guide 26 described above. In order to reduce the wear of the lower belt 1B and extend the life of the belt, care is taken to cover the surface in contact with the belt.

FIG. 8 shows an example of an arrangement of a group of sliding members. A belt reversing device 50 for reversing a return side belt that exits the lower cylindrical tube 14 and moves toward the tail pulley 3B.
In C, as shown in FIG. 8, (a), (b),.
The sliding bodies 52A are arranged as shown in FIG. On the other hand, in the belt reversing device 50C for reversing the lower belt 1B that exits the head pulley 2B and enters the lower cylindrical tube 14, the sliding bodies 52A are arranged in the order from (e) to (a). Usually, three to nine sliding bodies 52A are arranged at the same position (three are arranged in the example of FIGS. 6 to 8).
FIG. 9 shows an example of a detailed structure of the sliding body 52A,
A coating made of ultra-high-molecular-weight polyethylene having a low friction coefficient μ of 0.07 to 0.22 and excellent lubricity on the upper surface of a synthetic rubber main body 52Aa attached to a metal (aluminum or the like) rail 52Ac. Layer 52Ab was coated. Then, a T-shaped bolt 52A is attached to a support structure (not shown).
Fastened through d. In addition, since the coating layer 52Ab is worn by wear because the belt surface slides, it is preferable that the coating layer 52Ab be detachable from the main body 52Aa so that it can be replaced with a new one.

FIGS. 10 to 12 show a belt reversing device 50D according to a fifth embodiment. Belt reversing device 50D
As shown in FIGS. 10 to 12, the upper surface and the lower surface of the lower belt 1B are turned upside down, and are constituted by a plurality of curved plates 52B. The curved plate 52B is a curved surface that follows the shape of the reversing belt, that is, a curved surface that is slightly curved spirally in the direction in which the belt is reversed in the belt running direction. For example, as shown in FIG. A plurality of curved plates 52B, each having a slightly different curved surface due to the transfer of the belt, are arranged in the belt running direction. As shown in FIG. 11, the curved plate 52B has a plurality of compressed air outlets 52Ba arranged in the belt running direction at a central portion in the belt width direction of a surface in contact with the lower belt 1B, and is provided on the back surface of the curved plate 52B. The compressed air supplied by the compressed air pipe 52Bb is blown out to reduce sliding friction between the lower belt 1B, which is transported while being inverted, and the belt contact surface of the curved plate 52B.

FIG. 12 shows an example of a curved plate arrangement. As shown in FIG. 12, in a belt reversing device 50D (installed on the right side in FIG. 1) for reversing the return side belt that goes out of the lower cylindrical tube 14 and goes to the tail pulley 3B, FIG.
2, curved plates 52B are arranged as shown in (a), (b),..., (E). On the other hand, a belt reversing device 50D that reverses the lower belt 1B that exits the head pulley 2B and enters the lower cylindrical tube 14 (installed on the left side in FIG. 1)
Then, conversely, the curved plates 52B are arranged in the order from (e) to (a). Normally, one curved plate 52B is arranged at the same position, but two or more curved plates 52B may be arranged at the same position as shown in FIGS.

The belt reversing device 5 configured as described above
0, 50A, 50B, 50C, and 50D, for example, when the return belt of the lower belt 1B passes from left to right in the drawing of FIG. . That is, the return belt is successively guided while being inverted by a plurality of sets of the rounding roller 54, the cylindrical holding roller 59, the inclined roller 58, or the sliding body 52A or the curved plate 52B, the inclination direction of which is gradually changed, and is transported while being reversed. Finally, it is flattened by the flat roller 58A and then heads toward the tail pulley 3B.

In the inclined belt conveyor device 100, the reason that the return side belt of the lower belt 1B entering the lower cylindrical tube 14 is reversed by the belt reversing device 50 or the like is that the carrier side belt 1a is U-shaped by the upper cylindrical tube 10. Since the transported material M moves over a long distance while being loaded while being held in the cross section, the return side belt is not flat but rather inverted U when the return side belt is passed through the lower cylindrical tube 14 as it is. This is to prevent the belt end from sliding on the inner side wall of the lower cylindrical tube 14 and promoting frictional wear.

On the other hand, the one shown in FIG. 13 is called a trough forming device 60, and the trough forming device 60
In order to smoothly introduce the flat lower belt 1B (actually, the return side belt) having passed through the belt reversing devices 50, 50A,... In this case, the return side belt near the entrance of the lower cylindrical tube 14 becomes flat due to the effect of the reversing action of the belt reversing device 50 and the like, and the belt end portion is strongly rubbed against the inner wall of the lower cylindrical tube to be worn. In order to prevent this, the belt is installed for the purpose of keeping the belt cross section in a U-shape.
Specifically, it is composed of a pair of upper and lower pressing rollers 61 and 62 at the center of the belt cross section, and a pair of upper and lower scissors rollers 63, 63 and 64 and 64 which sandwich the belt end obliquely.

The operation of the inclined belt conveyor device 100 configured as described above and shown in FIG. 1 will be described.
The conveyed material M is supplied to the lower belt 1 from the input port 4 on the tail pulley side.
B, and is transported by being sandwiched between a lower belt 1B driven by a belt driving device (not shown) and a head pulley 2B and an upper belt 1A superimposed thereon and moving at the same speed as the lower belt 1B. From the head pulley side and is discharged. During operation of the inclined belt conveyor device 100, the carrier side belt moves while slightly floating due to the film layer of compressed air formed between the carrier side belt and the carrier side support trough formed on the lower surface of the upper cylindrical tube 10. The abrasion between the trough and the belt surface is greatly reduced as compared with the conventional model, and power consumption is reduced. FIG. 2 shows a cross section of the upper and lower belts 1A and 1B on the carrier side and the return side.

On the other hand, the return side belt of the lower belt 1B inverted by the head pulley 2B enters the belt reversing device 50 and the like, and the upper and lower surfaces are replaced with the top and bottom as described above, and then the lower cylindrical tube of the inclined belt conveyor device 100 14
It moves while slightly floating due to the floating action of the compressed air introduced and injected into the air. Then, after passing through the lower cylindrical tube 14, the belt is turned upside down again by the belt reversing device 50 or the like, and the original state is returned. The tail pulley 3B is reversed, and the return side belt of the lower belt 1B becomes the carrier side belt and the input port. Reaches four. On the other hand, the upper belt 1A
After being reversed at A to become the return-side belt, the belt is introduced into the upper cylindrical tube 12 as it is, and moves while slightly floating due to the floating action of the injected compressed air. After passing through the upper cylindrical tube 10, it is inverted by the tail pulley 3 </ b> A, the return side belt of the upper belt 1 </ b> A becomes the carrier side belt, and moves again while overlapping with the lower belt 1 </ b> B.

After the return belt of the upper belt 1A is inverted by the head pulley 2A, the upper cylindrical tube 10A is turned upside down.
A plurality of inlets arranged in the axial direction provided at the center of the upper portion of the cylindrical tube via the air supply tube 20 while being guided by the sliding guides 26 arranged on both sides on the upper outer surface in the axial direction. 22
It moves while slightly floating from the upper cylindrical tube 10 due to the compressed air ejected from a.

The inclination angle α of the inclined belt conveyor device 100 is set appropriately so that the conveyed material M sandwiched between the upper and lower belts 1A and 1B does not move downwardly due to relative movement with the belt surface during the inclined movement. Select. That is, the transported object M
If the angle of repose θ is 45 ° or less, the inclination angle α is selected from 75% to 150% of the angle of repose θ, and if the angle of repose θ is 45 ° or more, the inclination angle α is It is desirable to select between 75% and 100%.

[0037]

According to the inclined belt conveyor device of the present invention described above, a large amount of conveyed articles can be transferred at high speed between two long distances having a difference in height, and the noise is reduced due to the closed structure. There is no pollution of the work environment and loss of transported goods due to the occurrence of debris and falling minerals, the work environment is clean and good, the conventional problems are solved, the maintenance is easy, the maintainability is improved, and the power consumption is reduced. Running costs and initial costs can be significantly reduced.
In particular, in the present invention, the lower inner surface is used as a support trough for the carrier-side belt and the return-side belt by skillfully utilizing the cylindrical tube.
In addition, by providing the belt reversing device and the trough forming device on the return side, the wear of the belt is remarkably reduced, so that the maintainability is improved, and the operation can be performed safely and stably for a long period of time.

[Brief description of the drawings]

FIG. 1 is an overall side view of an inclined belt conveyor device according to an embodiment of the present invention.

FIG. 2 is a transverse sectional view taken along line AA of FIG.

FIG. 3 is a schematic perspective view of the belt reversing device according to the first embodiment of the present invention.

FIG. 4 is a schematic perspective view of a belt reversing device according to a second embodiment of the present invention.

FIG. 5 is a schematic perspective view of a belt reversing device according to a third embodiment of the present invention.

FIG. 6 is a schematic perspective view of a belt reversing device according to a fourth embodiment of the present invention.

FIG. 7 is a perspective view of a sliding body of the belt conveyor device according to the embodiment of the present invention.

FIG. 8 is an explanatory diagram showing a change transition of a sliding body of the belt reversing device according to the embodiment of the present invention.

FIG. 9 is a front view of the sliding body according to the embodiment of the present invention.

FIG. 10 is a schematic perspective view of a belt reversing device according to a fifth embodiment of the present invention.

FIG. 11 is a schematic perspective view of one of the curved plates of the belt reversing device according to the embodiment of the present invention.

FIG. 12 is an explanatory diagram showing a change transition of a curved plate according to the embodiment of the present invention.

FIG. 13 is a longitudinal sectional view of the belt forming apparatus according to the embodiment of the present invention.

FIG. 14 is a cross-sectional view of a conventional vertical belt conveyor device.

FIG. 15 is a cross-sectional view of a conventional vertical belt conveyor device.

[Explanation of symbols]

 Reference Signs List 1A Upper belt 1B Lower belt 2A Head pulley 2B Head pulley 3A Tail pulley 3B Tail pulley 4 Input port 10 Upper cylindrical pipe 14 Lower cylindrical pipe 20 Air supply pipe 22a Inlet 24 Exhaust pipe 26 Slide guide 28 Protective cover 30 Intake pipe 32 Air duct 32a Inlet 34 Exhaust pipe 40 Air supply pipe 42 Air duct 42a Inlet 43 Exhaust pipe 44 Pillar 45 Support 45a Inspection corridor 46 Stand 48 Handrail 50 Belt reversing device (first embodiment) 50A Belt reversing device (Second embodiment) 50B Belt reversing device (Third embodiment) 50C Belt reversing device (Fourth embodiment) 50D Belt reversing device (Fifth embodiment) 52 Horizontal scissors roller 52a Cylindrical support roller 52A Sliding body 52Aa Main body 52Ab Coating layer 52Ac Rail 52Ad T-type Bolt 52B song Face plate 54 Rounding roller 58 Inclined roller 58A Flat roller 59 Cylindrical holding roller 59a Vertical press roller 59b Inner press roller 60 Trough forming device 61, 62 Press roller 63, 64 Scissors roller 100 Inclined belt conveyor device 305 Press mechanism 305a Compression coil spring 308 Press Mechanism 308a Extension coil spring M Transported object (conveyed object)

Claims (6)

[Claims] 1. An inclined belt conveyor device which sandwiches and transports an article made of loose material between two upper and lower belts which are superimposed on each other and run at the same speed in a steeply inclined direction, wherein the upper and lower two belts are An air-floating inclined belt conveyor device having an endless belt and a belt-supporting trough having a plurality of compressed air injection holes for floating the belt on both the carrier side and the return side of the belt in the belt running direction. Wherein the belt supporting trough is formed of a pair of upper and lower cylindrical pipes made of a resin pipe or a steel pipe, and both carrier side belts are supported on the lower inner surface of the upper cylindrical pipe of the pair of upper and lower cylindrical pipes, The upper belt of the return side belt is attached to a pair of left and right sliding guides axially arranged on the upper outer surface of the upper cylindrical tube of the pair of upper and lower cylindrical tubes. The lower belt of the return side belt is supported on the lower inner surface of the lower cylindrical tube of the pair of upper and lower cylindrical tubes, and the upper end of the upper cylindrical tube. A compressed air pipe extending along a belt running direction that communicates with a pressure air source and supplies compressed air to the injection hole is provided below the injection hole formed at the center and at the bottom of each of the two cylindrical tubes. An inclined belt conveyor device, wherein an exhaust port is provided for discharging the compressed air after the belt floating action is connected to the cylindrical tube. 2. A belt reversing device for reversing the upper and lower surfaces of the lower belt before and after passing the return belt after the lower belt has been inverted at the edge of the device into the lower cylindrical tube. The inclined belt conveyor device according to claim 1 provided. 3. A belt reversing device comprising: a horizontal scissor roller provided on a pulley side; a cylindrical support roller provided on a lower cylindrical tube side; and a cylinder having the same cross section provided at an intermediate portion between the two rollers. A plurality of rounding rollers arranged in a circle, or a rounding roller composed of a pair of vertical pressing rollers and a pair of upper and lower inclined inner pressing rollers that support both ends of a bent belt from the inside, respectively, 3. The inclined belt conveyor device according to claim 2, wherein the inclined belt conveyor device is formed by a plurality of inclined rollers which project from a plurality of portions which are separated by a predetermined distance in the axial direction from the support so as to protrude by changing the protruding angle sequentially and abut and roll on the back surface of the belt. 4. A belt reversing device comprising a plurality of compressed air jets for floating a belt at a central portion in a belt width direction in contact with a reversing belt, each of which has a spiral shape in a direction in which the belt is reversed in a belt running direction. 3. The inclined belt conveyor device according to claim 2, wherein a plurality of curved plates, each of which is curved little by little and has a compressed air pipe communicating with the jet port on the back side, are arranged in the belt traveling direction. 5. A belt reversing device, comprising: a set of a plurality of circular or rectangular cross-sections extending in the belt running direction while the side surfaces abut against the reversing belt and arranged in parallel at substantially equal intervals in the belt width direction. 3. The inclined belt conveyor device according to claim 2, wherein a plurality of the sliding members are arranged by gradually changing the inclination direction in a direction in which the belt is reversed in the belt running direction. 6. Between the belt reversing device and the lower cylindrical tube,
The return belt is composed of a pair of upper and lower pressing rollers that roll by contacting the upper and lower surfaces of the cross-section central part and a pair of upper and lower scissors rollers that roll while holding both ends of the return belt at an angle. The inclined belt conveyor device according to claim 2, further comprising a trough forming device that forms the plate in a bowl shape.