JPH10139120A - Conveyer belt capable of three-dimensional curved teaveling - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a conveyer belt capable of curved travel with an extremely small radius of curvature and being surely driven by forming ear parts consisting of a V-belt having a wire member embedded therein respectively along both side ends of a band body. SOLUTION: A band body 1 of a conveyer belt can be travelled vertically and horizontally freely by changing the position of a guide roller 4 since longitudinal threads 22 are thin threads having a large elongation percentage, for example polyamide resin fibers expansible in the lengthwise direction. Further, since reinforcing wire members 13, 13 are embedded in ear parts 12, 12 large antitension strength can be shown. In addition, ear parts 12, 12 consisting of V-belts provided along both ends of the band body 1 are fitted in belt hooking grooves provided in a drive pulley and a driven pulley to be trained over both pulleys, so that a sufficient driving force is surely transmitted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a conveyor belt, and more particularly to a conveyor belt which can be bent three-dimensionally.

[0002]

2. Description of the Related Art Conventionally known conveyor belts are wound around a cylindrical drive pulley and a driven pulley arranged at a predetermined interval and driven to circulate.
It not only bends easily along the pulley, but also has flexibility from the necessity of adapting to the idler,
Sufficient tensile strength is required due to the necessity of transporting the placed heavy object.

For this reason, a structure is generally used in which a rigid core material such as a canvas or a steel cord is built in the entire belt width and covered with a rubber material.

However, the conventional conveyor belt is difficult to bend vertically and horizontally due to the rigidity of the core material, and particularly difficult to bend horizontally. In the case of a trough-type conveyor belt, the radius of curvature is as large as about 800 times or more the belt width, which is large, and is exclusively for straight running, and is not suitable for curved running.

[0005] Therefore, as a conveyor belt used for a conveying path having a bent portion, a belt which is bent into a U-shaped cross section or rounded into a cylindrical shape is known.

[0006] In particular, it is known that a conveyer belt which is rolled into a cylindrical shape having a type such as a jointed type or a superposed type can be curved with a relatively small radius of curvature. For example, a conveyor having a canvas as a core material is known. Even in the case of a belt, the radius of curvature in the case of running in the horizontal direction is about 100 times or more the diameter of the circular cylinder, and thus the use is often limited by the conditions of the installation location.

In addition, the conventional conveyor belt has a problem that the guide rollers and the like must be arranged and the position adjusted according to the music feeding position, the structure is complicated, and the installation and maintenance are not easy. is there.

[0008]

SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and not only can it bend in a vertical and horizontal direction, that is, three-dimensionally, with a very small radius of curvature, but also can be driven in a three-dimensional manner. An object of the present invention is to provide a conveyor belt which is reliably performed, has sufficient tensile strength, has a simple structure, and requires a small volume for installation.

[0009]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems. A belt capable of three-dimensionally bending is provided with a belt which hardly expands and contracts in the width direction and easily expands and contracts in the length direction. The body is formed in an endless shape, and each of the strips is provided with an ear portion formed of a V-belt having a wire member embedded therein along both side ends thereof.

In the conveyor belt according to the present invention, the V-belt, which is both ears, is fitted and wound around a belt hooking groove provided on a driving pulley and a driven pulley disposed at both ends of an installation section, and a frame is provided. In a straight state, it may be run in a flat or trough state while being held by guide rollers arranged at appropriate intervals provided in Run the vehicle while holding it.

[0011] At this time, the conveyor belt is formed of a strip shape which can be extended and contracted in the length direction and a freely bendable ear portion, so that the position of the guide roller can be adjusted to freely bend in the vertical and horizontal directions. Can be.

Further, since the conveyor belt hardly expands and contracts in the width direction, the conveyed belt surely supports the conveyed object, and there is no fear that the conveyor belt hangs or expands between the guide rollers.

Further, since the reinforcing wire member is buried inside the ear, the tensile strength is improved.

In addition, since the lugs formed of V-belts provided along both ends are fitted and wound around the belt hooking grooves provided on the driving pulley and the driven pulley, a sufficient driving force is transmitted.

[0015]

Next, an embodiment of the present invention will be described.

FIGS. 1 and 2 show a preferred embodiment of the present invention. As shown in FIG. 1 and FIG. 2, a belt 1 in which the front and back surfaces of a core 2 are covered with cover rubbers 23 and 24 is similar to a conventional conveyor belt. It has a configuration formed endlessly, and in particular, the core 2
A weft 21 made of a fiber having a large tension and a small elongation such as a polyvinyl alcohol fiber or a polyester fiber as a thick yarn, and a warp 22 made of a fiber having a high elongation such as a polyamide fiber as a thin yarn are warped. The cover rubbers 23 and 24 are made of a synthetic fiber fabric formed by a weave method in which the expansion and contraction in the direction is increased. It is made of a rubber material such as butyl rubber having excellent properties such as resistance and ozone resistance, and expands and contracts within a predetermined range in the length direction while hardly expanding and contracting in the width direction.

Further, the band body 1 has both side ends 11,
Ear portions 12, 12 each formed of a V-belt are embedded along the length direction 11 along the length direction. As the wire member 13, a steel wire is generally used, and a synthetic rope can also be used, and it is used according to the use, the width and length of the belt, running conditions, and the like.

In particular, as shown in FIG. 2, in the present embodiment, reinforcing wire members 13, 13 are buried in the ear portions 12, 12 in the longitudinal direction, respectively.

FIGS. 3 to 5 show one example of use of the conveyor belt shown in the above embodiment.
The conveyor belt is wound around a pair of drive pulleys 31 and driven pulleys 32 each having a cylindrical shape and arranged at predetermined intervals in the front and rear, similarly to the conventional belt, and is arranged at an appropriate interval in the transport direction. The guide roller 4 disposed on the body 3 bends the forward path 51 located at the upper side into an end surface U-shape and rolls the return path 52 located at the lower side into a tube shape for traveling.

Particularly, as shown in FIG. 5, the drive pulley 31 and the driven pulley 32 have V-shaped grooves 62 on both sides of a support shaft 61 (71) in which the lugs 12, 12 made of the V-belt are fitted. (72) is formed in a cylindrical shape.

The conveyor belt according to the present embodiment is suitable for running in a state where the frame 3 having the guide rollers 4 is bent in the horizontal and vertical directions by changing the arrangement position.

That is, the conveyor belt of the present invention comprises:
Since the warp yarns 22 constituting the core body 2 are made of fibers having a high elongation rate and are formed to be stretchable in the length direction, by changing the position of the guide roller 4, it is possible to freely bend in the vertical and horizontal directions. it can. In this case, the minimum radius of curvature could be reduced to about 5 to 10 times the belt width.

At this time, the weft 21 constituting the core 2 is
Since the fibers are made of a fiber having a large tension and a small elongation, there is almost no expansion or contraction in the width direction, so that the loaded article is reliably supported, and there is no fear of drooping or expanding as a whole.

Further, in this embodiment, since the reinforcing wire members 13 are buried inside the ear portions 12, a large tensile strength can be exhibited.

In addition, ears 12 and 13 formed of V-belts provided along both ends of the band 1 are wound around belt-engaging grooves provided in the driving pulley 31 and the driven pulley 32. Therefore, a sufficient driving force is reliably transmitted.

In this embodiment, the case is shown in which the outward path 51 located above is bent into a U-shaped cross section and the return path 52 located below is rolled into a cylindrical shape. (Not shown), and in this case as well, it can freely bend in the vertical and horizontal directions as in the case of bending into a U-shaped cross section. In addition, it goes without saying that the forward path 51 can be made to run in a flat shape or a trough shape in a straight running portion.

In this embodiment, the belt 1 is made of a weft 21 made of a thick yarn having a high tension and a low elongation.
The warp yarn 22 made of a fiber having a high elongation and a thin yarn has a core 2 made of a synthetic fiber fabric formed by a weaving method in which the longitudinal expansion and contraction is increased.
For example, in the width direction, for example, a crosspiece member that can be bent in the axial direction formed of a rubber material having a small elongation rate is sequentially connected with a connecting material formed of a rubber material having a large elongation rate to form a bellows shape. If the endless belt is formed so that it hardly expands and contracts within a predetermined range in the length direction, it is possible to produce a conveyor belt having the specific operation and effect of the present invention.

Further, in the present embodiment, the ears 12 and 12 for driving and guiding are formed by a single V-belt, but each of the ears 12 and 12 has a plurality of V-shaped belts.
It is also possible to use a V-belt formed by a belt or a plurality of V-shaped ridges connected in series, and in these cases, further driving force and tensile strength can be expected.

[0029]

As described above, according to the present invention, since the belt body which expands and contracts within a predetermined range in the length direction is formed endless, it is easily bent along the pulley because it has flexibility. It goes without saying that it is not only familiar with idlers, but in particular, freely bends in the vertical and horizontal directions with a significantly smaller radius of curvature than conventional U-shaped or cylindrically rounded ones. be able to.

In addition, according to the present invention, since it hardly expands and contracts in the lateral direction, it is possible to reliably carry a heavy object placed without drooping or expanding.

Further, the arrangement of guide rollers and the like arranged in accordance with the music feeding position is free and no complicated adjustment is required, so that the structure is simple and the installation and maintenance are easy.

In particular, since the wire member is buried inside the ear, a sufficient tensile strength can be exhibited.

Further, since the ear portion for driving and guiding is formed by the V-belt, it can be driven reliably.

[Brief description of the drawings]

FIG. 1 is a partially enlarged cross-sectional view showing one of the preferred embodiments of the present invention.

FIG. 2 is an enlarged cross-sectional view in which a part along line II-II of FIG. 2 is omitted.

FIG. 3 is a partially omitted plan view showing one usage example of the embodiment of the present invention shown in FIG. 1;

FIG. 4 is an enlarged cross-sectional view taken along the line IV-IV in FIG. 3;

FIG. 5 is an explanatory view showing a pulley portion shown in FIG. 3;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Belt 11 Side end 12 Ear part 13 Wire member

Claims (1)

[Claims] 1. A band which hardly expands and contracts in the width direction and easily expands and contracts in the length direction is formed in an endless shape, and a wire member is embedded inside both sides of the band. A three-dimensionally bendable conveyor belt, characterized in that each of the conveyor belts is provided with an ear portion comprising a V-belt.