JPH0544323Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a steeply inclined conveyor device for sandwiching a bulk material between a pair of belts and conveying the object upward.

``Prior Art'' Conveyor devices transport objects by placing them on a belt stretched between a pair of pulleys, and are generally used in a horizontal state, but can also be used in an inclined state. To prevent objects from sliding or rolling, the angle of inclination is limited to approximately 20°.

Therefore, when conveying loose objects such as sand or stones in a steeply inclined state such as vertically, the objects are sandwiched between a pair of belts 1A and 1B, for example, as shown in Figures 2 and 3. We are trying to transport it as it is. This conveyor device has drive pulley 2
and the driven pulley 3
Two bending pulleys 4A and 4B are placed in the middle of A and 1B.
The belts 1A and 1B are bent in a crank shape as a whole, and the objects to be transported are fed from the chute 6 into the supply conveyance section 5 in a horizontal state and sent to the steeply inclined conveyance section 7. He is trying to send it out from the steeply inclined conveyance part 7 via the carrying-out part 8.

In addition, in the steeply inclined conveying section 7, as shown in FIG. A plurality of end rollers 10 that press the outer surfaces of both side edges are arranged at intervals in the length direction of the belts 1A, 1B.
This prevents the transported object A from protruding from between 1B. Note that the reference numeral 11 in FIG. 2 indicates an idle roller.

``Problem to be solved by the invention'' By the way, by sandwiching the conveyed object A, a bulge B is generated in the belts 1A and 1B, and in the bulge B, the gripping force of the belts 1A and 1B causes a bulge B. Since the object A is transported while being supported by the bending pulleys 4A and 4B, even if a large clamping force can be obtained near the bending pulleys 4A and 4B, both pulleys 4
The clamping force tends to decrease in the middle part between A and 4B. This tendency becomes more pronounced as the steeply inclined conveying portion 7 becomes longer, and if the conveyed object A is heavy, there is a risk of it slipping down.

The present invention effectively solves the above problems, and aims to strengthen the gripping force of the belt, prevent the conveyed object from slipping, and improve the conveying capacity.

``Means for Solving the Problems'' The steeply inclined conveyor device of the present invention has a pair of left and right parts on the inside of the frame placed on both sides of the belt to press down on the outer surface of the bulge of the belt due to the pinching of the bulk material. A plurality of presser rollers are arranged so as to be able to freely swing in a direction perpendicular to the surface direction of the belt around a single swing pin, and are arranged at intervals in the length direction of the belt. A common elastic member is connected to the pressing roller and urges the pressing roller in a direction to press the belt.

"Function" In the steep inclined conveyor of this invention, the pressure rollers biased by the elastic members press the bulging portion of the belt from the outside, supplementing the clamping force of the belt and firmly clamping the transported objects. Also, because they are supported to be freely oscillated, they can oscillate according to the amount of bulging of the belt, in other words, the amount of transported objects being clamped, and can effectively follow the fluctuations. Furthermore, because the pair of left and right pressure rollers are pressed by a common elastic member, the left and right pressure rollers can be pressed against the belt with the same biasing force in a balanced manner without special adjustment.

"Embodiment" Hereinafter, one embodiment of the steeply inclined conveyor device of the present invention will be described based on FIG. 1.

This FIG. 1 shows a part corresponding to FIG. 3 of the conventional example, and in this embodiment, it shows the vicinity of the steeply inclined conveyance section 7 where the conveyed object A is held between both belts 1A and 1B. has a special structure,
Since the configuration corresponding to the overall front view shown in FIG. 2 is almost the same, drawings and explanations will be omitted.

This steeply inclined conveyor device has a frame 9 disposed on both sides of the belts 1A and 1B in the steeply inclined conveyance section, and a frame 9, which is provided on the inside of the frame 9, is provided with a , a plurality of pressing rollers 15 that press the outer surface of the bulging portion B of the belts 1A, 1B are spaced apart in the length direction of the belts 1A, 1B, similarly to the end rollers 10, and are arranged in a staggered manner via the belts 1A, 1B. It is located in

The pressing roller 15 is attached to both frames 9 so as to contact each half of the belts 1A and 1B in the width direction.
A pair of swing pins 18 are provided facing each other between the two, and only one support bracket 16 is provided for the swing pins 18.
It is attached to the frame 9 so as to be swingable in a direction perpendicular to the surface direction of the belts 1A and 1B.

The bracket 16 has belts 1A, 1 attached to the tip of a mounting arm 17 protruding from the inner surface of the frame 9.
It is swingably supported by a pin 18 along the length direction of B, and an end portion of a cover 20 having an L-shaped cross section is fixed to the surface of the support plate 19, and the cover 20 and the support plate 19, the support plate 19
The presser roller 15 is perpendicular to the surface of the
is supported, and a vertical plate 21 fixed to the back side of the support plate 19 is connected to the mounting arm 17 by a pin 18. In this case, the support shaft 15a of the presser roller 15 is provided on the support plate 19 at a position closer to the belts 1A, 1B than the pin 18 of the bracket 16, and the support plate 19 is positioned closer to the frame as shown in FIG. 9, the surface of the presser roller 15 is spaced from the center of the width direction of the frame 9, that is, the mating surface of both belts 1A, 1B, by one thickness of the belts 1A, 1B. It is now arranged in a central location. In other words,
It is designed to come into contact with belts 1A and 1B that are in a flat state with no conveyed object A interposed therebetween.

Further, a common elastic member 22 such as a coil spring that connects the brackets 16 of the pair of pressing rollers 15 facing each other between both frames 9 is connected to the belt 1.
It is provided along the width direction of belts A and 1B, and urges both pressing rollers 15 in a direction to press them toward belts 1A and 1B. The elastic member 22 is supported by an eye bolt 23 inserted into the support plate 19.
The eye bolt 23 is connected to the support shaft 1 of the presser roller 15 on the support plate 19.
It is provided on the opposite side of the bracket 16 with respect to the pin 18 of the bracket 5a.

In the steeply inclined conveyor device configured in this way, the press roller 15 is always urged in the direction of pressing the belts 1A, 1B by the elastic member 22, so that the conveyed object A is not placed between the belts 1A, 1B. In the state where there is no intervening belt, as shown in FIG.
When the carriers are holding the conveyed object A, they swing around the pins 18 so as to be pushed back by the bulges B, and as shown in FIG. Belt 1 is tilted along the
Touched by A and 1B. In this case, the elastic member 22
is stretched as the pressing roller 15 is raised, and its restoring force increases. In other words, the conveyed object A held between the belts 1A and 1B
As the amount of bulge increases and the amount of bulge increases, the belts 1A and 1B are pressed down with a stronger restoring force, and an appropriate pressing force can be applied depending on the amount of the transported object A.

Further, elastic members 22 are provided between the pressing rollers 15 facing each other in a pair, and the pressing rollers 15 adjacent to each other in the length direction of the belts 1A, 1B are independent, so that the belts 1A, 1B are independent of each other. 1
Even if the amount of bulge changes locally in the length direction of B, it can partially swing and follow the change quickly and reliably.

Note that it is also possible to change the spring constant of the elastic member 22 for each pressing roller 15 as necessary.
The spring constant may be set in accordance with specific usage conditions, such as by increasing the spring constant near the middle part of the steeply inclined conveyance section 7 relative to the vicinity of the bending pulleys 4A and 4B shown in FIG.

"Effects of the Invention" As is clear from the above explanation, according to the steeply inclined conveyor device of the present invention, the pressing roller urged by the elastic member presses the bulging portion of the belt from the outside. The belt's gripping force is strengthened by the rollers, and the conveyed object is firmly gripped.
This can be reliably prevented from slipping. Moreover, since the pressing roller is swingably supported, it can quickly follow fluctuations in the amount of transported objects and constantly apply a pressing force to the belt. Therefore, it is possible to improve the conveyance ability and effectively convey heavy objects to high positions.
Since the pair of left and right presser rollers are swingable around a single swing pin, the inclination of the presser rollers when an object is sandwiched between the belts can be controlled by adjusting the inclination of the presser rollers to the side edges of the belt. The conveying portion formed between the pair of belts pressed by the pressing rollers can have a rhombic cross-sectional shape. As a result, it is possible to simultaneously secure a large carrying volume and to avoid applying a large force to the joint portion of the pair of belt side edges to push them apart. Furthermore, since the pair of left and right press rollers are pressed by a common elastic member, the number of parts can be reduced, and the left and right press rollers can always be pressed with the same urging force without special adjustments. can. This effect is achieved.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view of the vicinity of the frame of an embodiment of the steeply inclined conveyor device of the present invention, in which A shows a state in which a conveyed object is clamped, and B shows a state in which a conveyed object is not interposed. Further, FIG. 2 is an overall front view showing a conventional example of a steeply inclined conveyor device, and FIG. 3 is a cross-sectional view taken along the line - in FIG. 2. 1A, 1B... Belt, 4A, 4B... Bending pulley, 5... Supply conveyance section, 7... Steeply inclined conveyance section, 8... Unloading section, 9... Frame, 10... End roller, 15 ... Pressing roller, 15a ... Support shaft, 16 ... Bracket, 17 ... Mounting arm,
18... Pin, 19... Support plate, 20... Cover, 21... Vertical plate, 22... Elastic member, 23...
...Eye bolt, A...Bulk carrier, B...Bulge.

Claims (1)

[Scope of utility model registration request] A pair of belts that sandwich and convey bulk goods are provided with a steep slope upward, and a bulge of the belt due to the sandwiching of the bulk goods is provided on the inner side of a frame placed on both sides of the belts. A pair of left and right presser rollers that press the outer surface are swingable in a direction perpendicular to the surface direction of the belt around a single swing pin, and are arranged in plural sets at intervals in the length direction of the belt. A steeply inclined conveyor device characterized in that the pair of left and right press rollers are connected to a common elastic member that urges the press rollers in a direction to press the belt.