KR100858182B1 - Self-aligning apparatus and method for conveying belt - Google Patents

Abstract

Self-aligning apparatus and method for a conveyor belt are provided to prevent damage to the belt by preventing the meandering belt from being inserted between a guide roller and a roller bracket or folding due to pressing of the guide roller. A self-aligning apparatus includes a fixed frame(110), a rotation frame(120), and a rubber disk attached taper idler(130). The fixed frame is installed on a moving path of a belt. The rotation frame is rotatably installed at the fixed frame within a predetermined angle inclined to a width direction of the belt. The rubber disk attached taper idler is rotatably installed at the rotary frame by a frictional force with the belt and formed in a taper shape in which a diameter gets smaller toward both sides of the rotary frame from a rotation center thereof to obliquely rotate together with the rotary frame with respect to the width direction of the belt through a friction difference between both sides when the belt meanders.

Description

Self-aligning device and how to watch out for conveyor belts {SELF-ALIGNING APPARATUS AND METHOD FOR CONVEYING BELT}

1 is a front view showing a self-aligning device of the conveyor belt according to the prior art,

2 is an exploded perspective view illustrating main parts of a self-aligning device of a conveyor belt according to the related art;

3 is a view for explaining a problem in the automatic caution device of the conveyor belt according to the prior art,

4 is a perspective view showing the self-aligning device of the conveyor belt according to the first embodiment of the present invention,

5 is a front view showing the self-aligning device of the conveyor belt according to the first embodiment of the present invention,

FIG. 6 is a plan view showing a tapered idler with a first rubber disc of the self-aligning device of the conveyor belt according to the first embodiment of the present invention;

7 is a front view showing the self-aligning device of the conveyor belt according to the second embodiment of the present invention,

8 to 11 is a plan view for explaining the operation of the self-aligning device of the conveyor belt according to the present invention, Figure 8 is the normal operation, Figure 9 is the belt meandering, Figure 10 is the first rubber disk attached Tapered idler rotates, Fig. 11 is a view showing a rubber disk-mounted taper idler rotates.

<Description of Symbols for Main Parts of Drawings>

110,210: Fixed frame 111: Equipment frame

112: support 113,213: bearing unit

120,220: rotating frame 121: rotating shaft

122,123: Idler Bracket

130,230: Tapered idler with rubber disc

131,231: Tapered idler with first rubber disc

131a: rotating shaft 131b: cargo spill groove

132,232: taper idler with second rubber disk

132a: rotating shaft 132b: cargo outflow groove

140,240: rotation angle limiting means 141: first locking piece

142: second hook 214: bracket

215: support roller 224: support piece

225: bracket 250: horizontal idler

The present invention relates to a self-aligning device and a caution method for a conveyor belt, and more particularly, to a rubber disk attachment by generating a rotational force by the difference in friction with the belt between the left and right taper idler taper idler consisting of two sets when the belt meanders Self-aligning device of the conveyor belt which rotates the rotating frame provided with tapered idler to be inclined at a certain angle from the original position in the belt perpendicular direction so that a careful function of restoring the meandered belt is carried out by the component of the contact force between the belt and the idler; Watch out for how.

In general, a conveyor belt, a device for continuously transporting goods on a belt, is widely used for transporting parts and materials, sand, coal, ore in manufacturing plants, construction sites, mines, coal-fired power plants, and steel mills.

Such conveyor belts are provided with a self-aligning device on the carrying side belt or the return side belt to prevent excessive serpentine moving in the left and right directions when loaded.

Referring to the accompanying drawings, a self-aligning device for preventing meandering of a conventional conveyor belt is as follows.

1 is a front view showing a self-aligning device of the conveyor belt according to the prior art, Figure 2 is a perspective view showing the main part of the self-aligning device of the conveyor belt according to the prior art.

As shown, the self-aligning device for a conveyor belt according to the prior art is a "meandering self-aligning device for a conveyor belt" of Patent Application No. 2004-0018895, filed with the Korean Intellectual Property Office. Carrying roller 12 supporting 11a) is supported by a plurality of connecting bars 14 connecting the facility frames 13 on both sides, and both ends of the fixed frame 15 positioned below the connecting bar 14. The bracket 16 is screwed to the installation frame 13, by the bearing unit 19 to enable rotation in the state in which the variable frame 18 is inserted into the opening 17 of the lower fixed frame 15 Combined.

Since the variable frame 18 has a width smaller than the width of the fixed frame 15, the variable frame 18 can be limitedly rotated within the range of the width of the fixed frame 15, and the side brackets 21 are welded at both ends. Are combined by. At this time, the side bracket 21 is formed with a coupling portion 23 perpendicular to the lower end for easy screwing with the bent and formed roller bracket 22.

The roller bracket 22 is screwed with the variable frame 18 and has a vertical mating portion 24 to be mated with the mating portion 23 of the side bracket 21, and is connected to the mating mating portion 24. The shaft hole into which the lower side of the guide roller 26 is inserted in the horizontal portion 25 is formed, and the shaft 28 of the guide roller 26 is fitted into the lower side of the roll insertion hole 27 ( 29 is formed a blocking cap 31 is coupled.

The roller bracket 22 is formed therein with a shaft coupling slot 34 for fitting the shaft 33 of the return roller 32 supporting the return side belt 11b of the conveyor belt 11 from the upper side, and the shaft The sliding pin 35 is installed to be slidable along the coupling slot 34 so that the shaft end of the roller bracket 22 is seated to be elastically supported by the elastic member 36.

Such a self-aligning device for a conveyor belt according to the related art is a pivot (pivot) consisting of a bearing unit 19 in a fixed frame 15 so that the variable frame 18 is installed with one return roller 32 is rotatable. When the conveyor belt 11 meanders while the conveyor belt 11 is running while being installed horizontally and the guide rollers 26 are installed at both ends, the return side belt 11b of the conveyor belt 11 moves the guide roller 26 outward by the magnitude of the meandering force. As a result, the rotation moment is generated by multiplying the distance between the guide roller 26 and the variable frame 18 by the meandering force, thereby causing the variable frame 18 to rotate about the bearing unit 19.

As the variable frame 18 is rotated, the return roller 32 is placed obliquely with respect to the width direction of the return side belt 11b. At this time, the return roller 32 is generated between the return side belt 11b and the return roller 32. The component of tension is generated in the axial direction of the return roller 32, and the return side belt 11b is pushed in the direction opposite to the meandering force. By this careful function, the return side belt 11b causes the center of the conveyor, that is, meandering. It will return to the previous position.

However, the self-aligning device of the conveyor belt according to the related art has the following problems.

First, the meandering return side belt 11b pushes the guide roller 26 to exert a cautious function. However, as shown in FIG. 3, the return side belt 11b moves over the guide roller 26 or pushes the guide roller 26. If it is dried before, the rotation of the variable frame 18 is not caused to be prevented from performing a careful function. This problem is difficult to solve as long as the guide roller 26 is provided with a cover such as a blocking cap as long as the guide roller 26 for the rotation of the variable frame 18 is expected.

Second, the meandering return side belt 11b is caught between the guide roller 26 and the roller bracket 22, or is damaged by folding or the like when the guide roller 26 is pressurized, thereby significantly improving the durability of the belt 11. Is degraded.

Third, when the magnitude of the meandering force applied to the return side belt 11b is excessive, that is, when the meandering force is greater than the restoring force by the frictional force, the return side belt 11b does not return even if the return roller 32 causes rotation. And the meandering remains intact, which prevents it from functioning.

Fourth, when the article is fixed to the return roller 32, it becomes difficult to secure the friction force between the return roller 32 and the return side belt 11b, and thus it is impossible to exhibit a careful function.

Fifth, since the guide roller 26 is installed at a position for causing the return roller 32 to rotate (the opposite side of the return roller reference belt running direction) in the state in which the return side belt 11b is set in one direction, the guide roller 26 performs both directions. It is not applicable to the reversible conveyor, and the plate-type guide roller applied by modifying the shape of the guide roller to be applied in the reversible direction is frequently incapable of rotating due to the lack of contact rotational force. There is a limit. Sixth, since the guide roller 26 is exerted by a careful function, it requires not only the guide roller 26 but also various components including the roller bracket 22 for fixing it, which not only complicates the structure but also the production cost. It causes the increase.

The present invention is to solve the above-mentioned conventional problems, an object of the present invention is the self-aligning device of the conveyor belt is made precisely the watch function for restoring the meandering belt even when the belt meandering or having an excessive meandering force; To provide a careful method.

The present invention for realizing the above object, the self-aligning device for automatically restoring the meandering of the conveyor belt, the fixing frame provided on the movement path of the belt, and the inclined frame with respect to the width direction of the belt. The rotating frame rotatably installed within a predetermined angle, and the rotating frame is installed to rotate by the frictional force with the belt, the belt is rotated inclined with respect to the width direction of the belt with the rotating frame due to the friction amount difference between both sides when the belt is meandering. It characterized in that it comprises a tapered idler with a rubber disk attached to the tapered shape having a tapered shape that decreases in diameter toward both sides from the center of rotation of the rotating frame.

In addition, the present invention is a self-aligning method for automatically restoring the meandering of the conveyor belt, the tapered idler with a rubber disk formed so as to support the rotation of the belt and decrease in diameter from both sides from the center to the friction between the two sides when meandering the belt. Due to the difference in amount, the belt is rotated so as to be inclined with respect to the width direction of the belt so that the restoring force is generated in the opposite direction to the meandering force with respect to the belt.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention.

4 is a perspective view showing the self-aligning device of the conveyor belt according to the first embodiment of the present invention, Figure 5 is a front view showing the self-aligning device of the conveyor belt according to the first embodiment of the present invention. As shown, the self-aligning device 100 of the conveyor belt according to the first embodiment of the present invention is an embodiment that is installed on the return side belt 1 of the conveyor belt fixed frame 110 and the fixed frame 110 Rotation frame (120) rotatably installed in the), and a tapered idler (taper idler) 130 with a rubber disk is installed to support the rotation of the return side belt (1) on the rotation frame (120).

The fixed frame 110 is fixedly installed on the installation frame 111 so as to lie horizontally on the movement path of the return side belt 1, and the rotation frame 120 is rotatably installed on the upper side via the bearing unit 113. .

The rotating frame 120 is rotated within a predetermined angle so as to be inclined with respect to the width direction of the return side belt 1 on the fixed frame 110 by the rotary shaft 121 is provided in the lower portion in the center coupled to the bearing unit 113. It is installed as possible, and two sets of tapered idlers with rubber discs 130 are installed to rotate by friction with the return side belt 1.

The rotation frame 120 further includes a rotation angle limiting unit 140 for limiting the rotation of the fixed frame 110 within a predetermined angle.

The rotation angle limiting unit 140 is composed of a pair of first locking pieces 141 and a second locking piece 142 located between the first locking pieces 141 in the present embodiment. 110 and installed on both sides of the rotating frame 120, respectively.

The first locking pieces 141 are positioned at the lower side of the rotating frame 120 by being provided at a distance along the moving direction of the return side belt 1 on the fixed frame 110.

The second locking piece 142 is provided on the lower side of the rotating frame 120 to be located between the first locking piece 141, and limited between the first locking piece 141 when rotating with the rotating frame 120. By moving to limit the rotation range of the rotation frame 120, the rotation range (β; shown in Figure 11) of this rotation frame 120 depends on the interval between the first engaging piece 141, 5 ° It is preferable that it is-10 degrees.

The tapered idler 130 with rubber disc returns by having one or more rubber discs 131c and 132c attached to the outer side thereof to have a frictional force, and installed to contact the lower side of the return side belt 1. The side belt (1) is rotated and supported, and the return side belt (1) rotates inclined with respect to the width direction of the return side belt (1) together with the rotating frame (120) due to the difference in friction amount between the two sides when meandering. It has a tapered shape in which the diameter decreases toward both sides from the center of rotation of the frame 120.

The tapered shape of the tapered idler 130 with rubber discs differs from the outer diameter of several rubber discs 131c and 132c with constant inner diameters, and the tapered idler 130 is arranged at a predetermined position on the outer circumferential surface of the tapered idler 130 with rubber discs, thereby inclining the appearance. Adopt a process to achieve the structure to increase the productivity.

The cargo outflow grooves 131b and 132b between the rubber discs 131c and 132c and the rubber discs 131c and 132c have a difference in the contact area between the belt 1 and the tapered idler 130 with the rubber disc according to the meandering belt position. By making it larger, the left and right imbalance force is generated reliably, and also the function which prevents the fall of the contact force by fixing of goods.

That is, the cargo outflow grooves 131b and 132b are formed along the outer circumferential surface on one side of the tapered idlers 131 and 132 with the first and second rubber disks to flow out the cargo located between the return side belt 1 and the single. It may be made, but is preferably formed to be arranged in a plurality along the longitudinal direction, by rotating the reaction by increasing the difference in the contact area between the left and right belt (1) and the tapered idler 130 with a rubber disk according to the position of the meandering belt. It is a quick function.

The tapered idler 130 with the rubber disk may be a single member placed along the width direction of the return side belt 1, but due to the difference in frictional force between the two sides, the tapered idler 130 may be rotated to be inclined with the rotation frame 120 more accurately. The first and second rubber disks are provided with tapered idlers 131 and 132 which are installed to rotate on the rotation frame 120 by being bisected based on the rotation center of the 120.

The tapered idlers 131 and 132 with the first and second rubber disks have a tapered shape, the diameter of which decreases toward the end toward the outside from the center of rotation of the rotation frame 120, and each of the rotation shafts 131a and 132a provided on both sides. ) Is supported by the idler brackets 122 and 123 respectively provided on both sides of the rotating frame 120 in a rotation restraint state, and rotates through a bearing unit (not shown) installed on the rotating shafts 131a and 132a.

The tapered angles of the tapered idlers 131 and 132 with the first and second rubber disks are determined by various factors such as the speed and the weight of the return side belt 1, the weight of the article, and the return side belt 1. In order to exert a smooth and accurate careful function by rotating together with the rotating frame 120 at the time of meandering, the tapered angle α is preferably 2 ° to 4.5 ° as shown in FIG. 6.

The tapered idlers 131 and 132 with the first and second rubber discs are positioned above the ends toward the center of rotation so that the ends facing the rotation centers 131a and 132a are smoothly in contact with the return side belt 1. It is installed to be inclined on the rotating frame 120 so as to. In addition, the height of the support 112 of the fixing frame 110 is determined so that the return side belt 1 is about 1/3 of the vertical height of the tapered idlers 131 and 132 with the inclined first and second rubber disks.

7 is a front view showing a self-aligning device of the conveyor belt according to the second embodiment of the present invention. As shown, the self-aligning device 200 of the conveyor belt according to the second embodiment of the present invention is installed on the carrying side belt 2 in the conveyor belt differently from the first embodiment, but is carried in the same manner as in the first embodiment. Fixed frame 210 fixed on the movement path of the side belt 2 and the fixed frame 210 is rotatably installed within a predetermined angle so as to be inclined with respect to the width direction of the carrying side belt (2). The rotating frame 220 and the rotating frame 220 is installed to rotate by the frictional force between the carrying belt 2, the carrying belt 2 when the meandering belt 2 meandering due to the difference in the amount of friction between the rotating frame 220 and In addition, the tapering idler 230 having a rubber disk having a tapered shape is reduced in diameter toward both sides from the center of rotation of the rotation frame 220 so as to rotate inclined with respect to the width direction of the carrying side belt (2).

Since the same parts as those in the first embodiment of the conveyor belt self-aligning device 200 according to the present embodiment have already been described in detail, the parts different from the first embodiment will be described.

The tapered idler 230 with rubber disks is installed so as to be inclined on the rotating frame 220 having a "V" shape so that the end facing outward is positioned above the end facing the rotation center as described in the previous embodiment. The first and second rubber disk-mounted taper idler (231,232), which is located between the first and second rubber disk-mounted taper idler (231,232), the horizontal idler 250 for rotationally supporting the carrying side belt (2) Is installed horizontally in the center of the rotating frame 220.

The horizontal idler 250 is rotatable by the bracket 225 on the rotating frame 220 via the bearing (not shown) with both ends positioned in line with the tapered idlers 231 and 232 with the first and second rubber disks. And the load of the article placed on the carrying side belt 2 together with the tapered idlers 231 and 232 with the first and second rubber disks.

The rotation angle limiter 240 restricts the rotation frame 220 to rotate within a predetermined angle about the bearing unit 213 from the fixed frame 210. In this embodiment, the rotation angle limiter 240 is perpendicular to the fixed frame 210. The stopper is provided to protrude so as to contact the side of the rotating frame 220, the rotation frame 220 is in contact with the stopper when the rotation at a predetermined angle to further suppress the rotation.

The fixed frame 210 is supported by the support rollers 215 rotatably installed by brackets 214 on both sides of the upper side to rotate and support the lower side of the rotating frame 220, thereby to the carrying belt 2 Rotating frame 220 is enough to withstand the weight of the load placed. On the other hand, the support frame 224 is installed in the rotation frame 220 to provide a surface in contact with the support roller 215 in a position in contact with the support roller 215 in the lower side.

In the self-aligning method of the conveyor belt according to the present invention, the tapered idler (130,230) with rubber disks formed to support the belt (1,2) while reducing the diameter toward both sides from the center (O), the belt (1, 2) Rotation to be inclined with respect to the width direction of the belt (1,2) due to the difference in friction between the two sides during meandering so that restoring force is generated in the opposite direction to the meandering force with respect to the belt (1,2). ) Is returned.

The tapered idlers 130 and 230 with rubber discs are first and second rubber discs installed so as to be divided into two parts with respect to the center O rotating obliquely, as in the self-aligning device 100 and 200 of the conveyor belt according to the present invention. The belts 1 and 2 are returned using the attachment taper idlers 131, 132, 231 and 232.

Such a self-aligning method of the conveyor belt according to the present invention will be described in detail with the action of the self-aligning device of the conveyor belt according to the present invention described above.

When the conveyor system is driven while a load is loaded on the carrying side belt 2, as shown in FIG. 8, when the belts 1 and 2 move, the taper idlers 130 and 230 with rubber disks are moved. In the normal operation state supported without being eccentric to each other, the frictional amounts due to sliding acting on the tapered idlers 131 and 231 and the tapered idlers 132 and 232 with the second rubber disk, respectively, located on the right and left sides thereof are equal to each other. The tapered idlers 131, 132, 231, 232 with the first and second rubber discs are positioned so as to cross at right angles to the width direction of the belts 1, 2.

In this case, when the meandering force acts on the belts 1 and 2, for example, when the meandering force acts in the right direction, as shown in FIG. 9, the first belts 1 and 2 are located on the right side. The area in contact with the tapered idlers 131 and 231 with the rubber disks is larger than the area in contact with the taper idlers 132 and 232 with the left rubber disk, so that an eccentric force F is generated by the difference in friction between them. As the rotation moment M of the magnitude multiplied by the moment arm R by the core force F is generated, the tapered idlers 131, 132, 231, and 232 with the first and second rubber disks rotate in a counterclockwise direction. do. At this time, the permissible rotation angle beta of the tapered idlers 131, 132, 231 and 232 with the first and second rubber disks is determined by the rotation limiting means 140 and 240, and preferably 5 ° to 10 °.

In addition, the tapered idlers 131 and 231 with rubber discs having a contact area with the belts 1 and 2 as the belts 1 and 2 are meandered may have a gap between the belts 1 and 2 if the diameters of both ends are the same. The sliding force does not occur and the frictional force with the belts 1 and 2 acts only as a force to rotate about the rotation shafts 131a and 231a, so that resistance against the traveling direction of the belts 1 and 2 is not generated. As shown in FIG. 1, the tapered idlers 131 and 231 having the first rubber disk have both diameters (a) of the ends facing the center of rotation (O) larger than the diameters (b) of the ends facing outward, so that both ends (a, b) Belt (1,2) located at the end facing outward with a smaller speed than the part located at the diameter (a) of the end facing the rotation center (O) because a difference occurs in the movement speed of the belt (1,2) Drag on the part causes the belt (1, 2) in the direction of travel It acts as a resistance.

This resistance is relatively small compared to the tension of the belt (1, 2), the resistance value of the bearing units 113, 213 of the rotary frame (120, 220) is smaller, and furthermore, the belt (on the tapered idler (131,231) with the first rubber disk ( Due to the friction amount deviation of 1,2), the tapered idlers 131 and 231 with the first rubber disk cause rotation in the counterclockwise direction with respect to the rotation center (O).

Thus, when the belts 1 and 2 meander, the taper idlers with tapered idlers 131 and 231 and the taper idlers 132 and 232 with tapered rubber discs as well as the tapered first and second tapers with tapered rubber taper are formed. As shown in FIG. 11, the tapered idler 130 and 230 with the rubber disk cause the rotation together with the rotation frames 120 and 220 to be accurate due to the difference in friction between both ends of the idlers 131, 132, 231 and 232.

When the tapered idlers 130 and 230 with rubber discs rotate together with the rotary frames 120 and 220 from the fixed frames 110 and 210 by the meandering force of the belts 1 and 2, the thrust F1 by the tension of the belts 1 and 2 The force F2 in the direction perpendicular to the axes of the tapered idlers 132 and 232 with the second rubber disk and the force F3 in the direction corresponding to the axial direction of the taper idlers 132 and 232 with the second rubber disk act as the component force. At this time, the force (F3) in the axial direction of the tapered idler (132,232) with the second rubber disk acts as a restoring force so that the meandered belts (1,2) are returned to the center of travel, and this restoring force is the belt (1,2). ) It is also caused by the difference in the amount of friction, that is, due to the difference in the weight of the belt between the left and right sides and the vertical component of the belt tension.

As described above, the self-aligning device and the careful method of the conveyor belt according to the present invention has the following effects.

First, the taper shape of the taper idler with rubber disk and the amount of friction between the left and right sides due to the groove between the rubber disk and the rubber disk during the meandering of the belt can be surely generated so that the taper idler with the rubber disk can react quickly even if the belt meanders slightly. To ensure the correct function of restoring the meandering belt.

Second, by preventing the belt from being pinched or damaged by folding or the like, the durability of the belt is increased.

Third, the tapered idler with rubber disk is tapered and has a groove for outflowing the cargo, thereby minimizing the fixation of the cargo to the tapered idler with rubber disk, preventing the loss of frictional force due to sticking of the cargo. The restoring force of the finished belt can be secured accurately.

Fourth, even if the direction of movement of the belt is changed from the forward direction to the reverse direction so that the rotation of the tapered idler with the rubber disk for the watch function is made precisely so that the watch function as well as the forward movement of the belt is made accurate.

Fifth, since the structure does not require a separate guide roller and a roller bracket for the rotation of the tapered idler with a rubber disk, not only the structure is simplified but also the manufacturing cost is reduced.

What has been described above is only embodiments for carrying out the self-aligning device and the method of aligning the conveyor belt according to the present invention, the present invention is not limited to the above embodiment, as claimed in the following claims Without departing from the gist of the present invention, anyone of ordinary skill in the art will have the technical spirit of the present invention to the extent that various modifications can be made.

Claims (11)

In the self-aligning device to automatically restore the meander of the conveyor belt, A fixed frame installed on a movement path of the belt, A rotating frame rotatably installed within the fixed frame to be inclined with respect to the width direction of the belt; The rotating frame is installed to rotate by frictional force with the belt, and the belt is rotated at both sides from the center of rotation of the rotating frame such that the belt rotates inclined with respect to the width direction of the belt due to the difference in friction between both sides when the belt meanders. Tapered idler with rubber disc with taper shape with decreasing diameter toward the end Self-aligning device of the conveyor belt comprising a. The method of claim 1, Rotation angle limiting means for limiting the rotation frame to rotate within a predetermined angle from the fixed frame, The rotation angle limiting means, A pair of first engaging pieces provided on the fixed frame at a distance along the moving direction of the belt; A second locking piece provided on the rotating frame so as to be located between the first locking pieces; Self-aligning device of the conveyor belt comprising a. The method of claim 1, Rotation angle limiting means for limiting the rotation frame to rotate within a predetermined angle from the fixed frame, The rotation angle limiting means, A stopper provided to protrude on the fixed frame and in contact with the rotating frame Self-aligning device of the conveyor belt. The method of claim 1, The tapered idler with rubber disk, It is a tapered idler with first and second rubber disks installed to rotate on the rotating frame by dividing on the basis of the center of rotation of the rotating frame. Self-aligning device of the conveyor belt, characterized in that. The method according to claim 1 or 4, The tapered idler with rubber disk, With tapered angles ranging from 2 ° to 4.5 ° Self-aligning device of the conveyor belt, characterized in that. The method of claim 4, wherein The taper idler with the first and second rubber disks, It is installed to support the carrying side belt or the return side belt in the belt, it is installed to be inclined so that the end facing outward is located above the end toward the rotation center. Self-aligning device of the conveyor belt, characterized in that. The method of claim 6, When the taper idler with the first and second rubber disks rotationally supports the carrying side belt of the belts, The horizontal idler being horizontally installed on the rotating frame so as to rotationally support the carrying side belt between the first and second rubber disk-mounted taper idlers Self-aligning device of the conveyor belt, characterized in that. The method of claim 1, Support rollers are installed on the fixed frame to support the lower side of the rotating frame on both sides Self-aligning device of the conveyor belt, characterized in that. The method according to claim 1 or 4, The tapered idler with rubber disk, The cargo outflow groove is formed along the outer circumferential surface on both sides to allow the cargo located between the belt and the cargo to flow out Self-aligning device of the conveyor belt, characterized in that. In the self-care method to automatically restore the meander of the conveyor belt, A tapered idler with a rubber disk formed to reduce the diameter from the center to both sides while supporting the belt is rotated so as to be inclined with respect to the width direction of the belt due to the difference in friction between the two sides when the belt meanders. Restoring the belt such that restoring forces are produced in the opposite direction to the meandering force with respect to Self-care method of the conveyor belt, characterized in that. The method of claim 10, Returning the belt by using a taper idler with first and second rubber disks respectively installed to bidirectionally rotate the tapered idler with the rubber disk attached thereto. Self-care method of the conveyor belt, characterized in that.

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