JPH0620330U - Guide device for belt conveyor side edge of pipe conveyor - Google Patents

Abstract

(57) [Abstract] [Purpose] Even if the outer edge contacts the upper surface of the pressing roller that presses the inner edge of the pipe belt, the roller is allowed to rotate freely to prevent abrasion of the belt. Smooth belt running and side edge overlap. [Structure] The outward belt 11a, which runs around the driven roller to be flattened, is rounded, and both side edge portions 11 ', 1 thereof are rolled.
Place the holding frame 19 close to the crossing position where 1 ″ starts to overlap.
The vertical shaft 19a of the holding frame 19 and the central shaft 21
The two unit rollers 20a are rotatably attached to the two plate rollers 20a through bearings 22, respectively.
The position and angle of the belt 11a are adjustable with respect to the cross section of the belt 11a via 3, 24, and the inner side edge portion 11 ″ of the belt 11a is brought into contact with the lower surface of the unit roller 20a on the base end side to move the roller in one direction. Unit roller 20a on the tip side
When the outer side edge portion 11 'comes into contact with the upper surface of the roller, the roller rotates in the opposite direction to the roller on the base end side.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a guide device in which most of an endless belt is formed into a pipe shape and a pipe conveyor which encloses and conveys a conveyed object such as powdery particles or bulk matters so that both side edges of the belt can be smoothly overlapped.

[0002]

[Prior art]

 7 to 10 schematically show a pipe conveyor widely used for long-distance outdoor transport of powdery or loose materials, and the flexible endless belt 1 has both side edges overlapped with each other. Although it tends to be rolled into a pipe shape, the front driving roller 2 and the rear driven roller 3 are flatly developed and wound around each other, and the middle portion is spaced at regular intervals in the longitudinal direction. The support frames 4 are rounded and supported in a pipe shape by a large number of support frames 4 arranged in a vertical direction, and the support frames 4 are provided with circular belt insertion passages 4a and 4b at upper and lower portions as shown in FIG. Around the passages 4a and 4b, several holding rollers 5 are arranged via brackets 5a so that the inner edges thereof are adjacent to each other to form a polygonal shape.

Further, at the front side of the driven roller 3 and the rear side of the drive roller 2 (however, the drive roller 2 side is not shown), a deforming roller 6 a arranged in a pair in the shape of a paste is provided. As shown in FIGS. 9 and 10, the upper and lower deformation frames 6 are provided in a plurality of stages, and the outward belt 1a of the belt that spreads flat by rotating the driven roller 3 at the rear tends to be rounded and deformed. Rolls 6a are sequentially rolled, and the conveyed product m is supplied from the hopper 7 between them, and the forward path belt 1a wraps it up so that both side edge portions 1'and 1 "overlap each other to form a pipe shape on the support frame 4a. After passing through the insertion path 4a and the foremost support frame 4, the deforming roller on the drive side again spreads it into a flat plate shape. Be dropped on.

Next, the outward path belt 1a becomes a return path belt 1b, which is re-rounded by the driving-side deformation roller, passes through the lower insertion path 4b of each support frame 4, and is in front of the driven roller 3 on the driven side. It is spread flat by the deforming roller so that the driven roller 3 is rotated and circulated.

In the above-mentioned pipe conveyor, the forward belt 1a is positioned at a position A immediately before entering the driven-side rearmost support frame 4, or the return belt 1b is positioned at a position immediately before entering the drive-side frontmost support frame 4. Both side edges 1 ', 1 "will intersect, but at that time, due to changes in tension and weight applied to the belt, belt curl, etc., both side edges will hit each other and will not overlap smoothly. Therefore, as shown in Fig. 11, the holding roller 9a is provided horizontally at a position slightly before the crossing position of the belts so that the holding roller 9a can be adjusted in the extended state and the inclination by the two plates 9b and 9c. Installed, the outward side belt 1a and the return path belt 1b (the pressing roller is provided at the lower part of the frame in the return path) are bent inward to bend the side edge portion 1 ″ so that the side edge portions do not collide with each other. Like The following are proposed by Jitsuko Sho 61-43764 and Jitsuhei 2-21452.

[0006]

[Problems to be solved by the device]

 By arranging the pressing roller 9a close to the crossing position of the both side edge portions of the belt as described above, it is possible to avoid collision between the both side edge portions 1 ', 1 "of the belt, but they are rounded. The belt tends to reciprocate around the axis of the belt as shown by the arrow in FIG. 11 due to running motion, slippage of the contents, uneven distribution, etc., and the outer side edge 1 ′ that is free is There is a tendency to fall down as shown by the dotted line, and the outer side edge portion 1'abuts on the upper surface of the tip portion of the pressing roller 9a.

By the way, since the above-mentioned conventional pressing roller 9a is a single roller, for example, the roller 9a is rotated clockwise by the inner side edge portion 1 ″ of the belt which is in contact with the lower surface of the pressing roller 9a. Then, the roller 9a is contacted with the upper surface of the outer side edge 1 ', and a rotational force in the counterclockwise direction is applied to the roller 9a, so that the pressing roller 9a is braked. 1 ″ rubs against the roller surface, resulting in wear.

In order to prevent this, if the distance from the intersecting position of the side edge portions 1 ', 1 "is increased as shown by the dotted line in FIG. 8, the pressing roller 9a is pressed by the pressing roller 9a inward. The side edge rises up like a dotted line at the intersecting position, collides with the outer side edge, and the overlapping state is reversed, which hinders the smooth operation of the endless belt.

Therefore, in the present invention, even if the outer side edge of the pipe-shaped belt comes into contact with the upper surface of the pressing roller, the pressing roller is freely rotated to prevent the belt from being worn, and the belt travels and the belt side. The purpose is to smoothly overlap the edges.

[0010]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides a holding roller for a large number of supporting frames in which most of the forward and return belts of an endless belt that circulates between a driven roller and a driving roller at both ends are arranged at regular intervals. As a guide device for the belt side edge part of the pipe conveyor that rolls and supports in a pipe shape by wrapping and conveys powdered particles and the like, the first driven roller side and the drive roller side both sides of the forward path belt or the return path belt. Position and angle can be adjusted with respect to the belt cross section of the presser roller in which a plurality of unit rollers are separately mounted on the central axis at the position where the edge is rolled and intersects or is close to the rounded position. And is configured to press one side edge portion of the outward belt or the backward belt toward the inside, and secondly, it is composed of a plurality of rotatable unit rollers. The holding roller is inserted from above or below between the both side edges of the forward path belt or the backward path belt, and one side edge is pressed inward. Thirdly, the pressing roller is rotated separately. It is characterized by being composed of a large number of possible unit rollers.

[0011]

【Example】

 FIG. 1 shows a side view of an example of a pipe conveyor according to the present invention, and FIG. 2 shows a plane thereof, but a flexible endless belt 11 is formed into a pipe shape by overlapping both side edges 11 ′ and 11 ″. The front drive roller 12 and the rear driven roller 13 are developed into a flat plate shape and are wound around each other, and the middle portion thereof is provided with a large number of intervals arranged in the longitudinal direction at regular intervals. The support frame 14 is supported by being rolled into a pipe shape, and the support frames 14 have circular belt insertion passages in the upper and lower portions as described above, and several insertion passages are provided around each insertion passage. The holding rollers 15 are arranged so that their inner edges are adjacent to each other so as to have a polygonal shape.

In addition, a plurality of deformations arranged in pairs in the form of a paste are provided in the area between the driven roller 13 and the rearmost support frame 14 and the area between the frontmost support frame 14 and the drive roller 12. The deformation frames 16 having upper and lower use rollers 16a are arranged in a plurality of stages, and the endless belt 11 that spreads flatly by rotating the driven roller 13 on the rear side becomes the outward belt 11a, and is elastic so as to roll itself. As the rolls 16a and 16b are sequentially rolled by the deforming roller 16a, the hopper 17 feeds the conveyed product m onto the belt, and the outward belt 11a wraps the conveyed product m, and the position immediately before the last support frame 14 is reached. At A, both side edge portions 11 'and 11 "cross each other to form a pipe shape and enter the upper insertion passage of the support frame 14, pass through the following support frame 14 while being held by the surrounding holding rollers 15, and support the frontmost position. Through frame 14 By the way, the deformation roller 16a on the upper side of the drive side spreads it into a flat plate shape, and the conveyed product m is dropped into the load receiving cylinder 18 while traveling around the drive roller 12.

The forward path belt 11a becomes the return path belt 11b when the drive roller 12 is rotated, and is rounded again by the deformation roller on the lower side of the drive side, and immediately before entering the foremost support frame 14, both side edge portions 11 ', 11 ″ Crosses into a pipe shape and enters the lower insertion passage, passes through each support frame 14 while being held by the holding rollers 15 around it, and passes through the last support frame 14, and the lower side of the driven side is deformed. The roller 16a spreads the surface flat and the driven roller 13 is rotated and circulated.

Then, on the driven side, both side edges 11 ′, 11 ″ of the return belt 11b intersect at a position slightly before the position A where the both side edges 11 ′, 11 ″ of the outward belt 11a intersect and on the drive side. Pressing frames 19 each having a pressing roller 20 are provided at a position slightly before the position A ′ at which the pressing roller 20 presses the inner side edge portions 11 ″ of the outward belt 11 a and the backward belt 11 b. Has been done.

By the way, the pressing roller 20 as an example of the present invention is divided into two unit rollers 20 a as shown in FIG. 4, and each of the unit rollers 20 a has a central shaft 21 through a pair of bearings 22. An ear plate 23 having a plurality of horizontally elongated holes 13a is attached to the base end of the central shaft 21 by welding or the like.

On the other hand, as shown in FIG. 3, a holding plate 24 having a plurality of vertically long holes 24 a is fixed to one side vertical rod 19 a of the holding frame 19, and the holding roller 20 has a horizontally long hole 23 a of an ear plate 23. Are cross-overlapped with the vertically elongated holes 24a of the holding plate 24 and are horizontally and horizontally connected so that the inclination can be adjusted vertically, horizontally and horizontally, and the forward belt 11a or the backward belt (however, on the backward path side, the presser roller is provided below the presser frame. ) The inner side edge portion 11 ″ of () is pushed inward by the unit roller 20 a on the base end side.

Therefore, the endless belt 11 circulates, runs around the driven roller 13, and is flattened out. The outward belt 11a passes through the plurality of stages of deforming rollers 16a while receiving the conveyed object m from the hopper 17. It is sequentially rolled up and passes through the holding frame 19, in which case the outer side edge portion 11 'of the belt abuts against the upper surface of the tip end portion of the holding roller 20 due to the vertical swing of the portion or the rotation of the belt. When they come into contact with each other, they come into contact with the upper surface of the unit roller 20a on the front end side, and due to the contact phenomenon, the outer side edge portion 11 'is irrelevant to the unit roller 20a on the front end side regardless of the one on the base end side. It can move smoothly while rotating in the counterclockwise direction, while the inner side edge portion 11 ″ is in contact with the lower surface of the unit roller 20a on the base end side. Rotate in the opposite direction or clockwise You will drive with less resistance.

Therefore, both side edge portions 11 ′ and 11 ″ of the outward belt 11 a do not collide with each other and smoothly overlap each other to form a pipe shape and enter the upper insertion passage of the support frame 14. In 11b, the insertion passage is only on the lower side of the frame, and the function of promoting the rounding of the belt by the pressing roller 20 is the same as that of the forward belt.

As shown in FIG. 3, in the state in which the laterally-horizontal pressing roller 20 pushes and bends the inner side edge portion of the belt, when the amount or the specific gravity of the conveyed object m inside is large, the belt lower part is indicated by a dotted line. It is preferable to dispose a plurality of receiving rollers 25 on the side to support them.

FIG. 5 shows that the holding plate 24 having the vertically long hole 24a is fixed to the horizontal rod 19b of the holding frame 19, and the ear plate 23 having the horizontally long hole 23a is connected to the holding plate 24 so that the position and the angle can be adjusted. A modification is shown in which the presser roller 20 is obliquely inclined from above or below and is inserted between the both side edge portions 11 'and 11 "of the forward or return belt to press the inner side edge portion. In this case, the inner side edge portion 11 ″ comes into contact with the lower surface of the front end side unit roller 20a, while the outer side edge portion 11 ′ comes into contact with the upper surface of the base end side unit roller 20a. Therefore, it is suitable to dispose the pressing roller 20 at the crossing position of the belt itself or closer to the crossing position.

Further, FIG. 6 shows an example in which a large number of narrow unit rollers 20a are rotatably mounted on the central shaft 21 as the pressing roller 20 through the bearings 22, respectively. Even if the contact positions of the belt side edge portions 11 'and 11 "with respect to the roller are changed by lateral movement to some extent, it is possible to finely respond to this and the inner side edge portions 11" contact portions and the outer side. The portion where the side edge portion 11 'comes into contact surely rotates in the opposite direction, and the overlapping at the intersecting position is smoothly performed, which does not hinder the running of the belt.

[0022]

[Effect of device]

 As described above, the present invention is configured as described above as the guide device for the side edge portion of the endless belt in the pipe conveyor for transporting the conveyed goods such as powdery particles and bulks outdoors over a long distance. It is possible to reliably prevent the opposite side overlapping of the belt both side edges at the crossing position of the return path belt, and moreover, even if the other side edge is brought into contact with the pressing roller, the turning force in the opposite direction is applied. As before, the roller does not stop, the abutting part rotates freely in the direction of action to prevent belt wear, and does not hinder belt travel. If it is inserted between the presser rollers, the presser roller can be brought closer to the crossing position of the belt, and the overlapping of the both side edges of the belt at the crossing position becomes smoother. If configured with a number of rotatable unit roller, even after changing the contact position of the belt side edges, to be finely correspondingly roller which can be smoothly run a rotated belt.

[Brief description of drawings]

FIG. 1 is a side view of a belt conveyor according to the present invention.

FIG. 2 is a plan view thereof.

FIG. 3 is a front view of the upper half of the presser frame of the present invention.

FIG. 4 is a sectional view of a pressing roller according to the present invention.

FIG. 5 is a front view of an upper half portion of a presser frame in which a mounting state of a presser roller is changed.

FIG. 6 is a partially cut side view of a modified example of a presser roller.

FIG. 7 is a schematic side view of a conventional conveyor belt.

FIG. 8 is a front view of a support frame.

9 is an enlarged side view of a driven roller side portion of FIG. 7.

FIG. 10 is a plan view of FIG.

FIG. 11 is a front view of the upper half of a conventional presser frame.

[Explanation of symbols]

11 Endless belt 11a Forward belt 11
b Return belt 12 Drive roller 13 Driven roller 14
Support frame 15 Holding roller 16 Deformation frame 17
Hopper 18 Container 19 Presser frame 20
Presser roller 20a Unit roller 21 Center axis

Claims (3)

[Scope of utility model registration request] 1. A majority of the forward and backward belts of the endless belt that circulates between a driven roller and a driving roller at both ends is supported by a plurality of supporting frame holding rollers arranged at regular intervals so as to be rolled into a pipe shape. However, in a pipe conveyor that wraps and conveys powdered or granular material, both side edges of the forward path belt or the return path belt on the driven roller side and the drive roller side are rolled from the unfolded state or close to the intersecting position. At the position, a pressing roller with a plurality of unit rollers rotatably mounted on the central axis is arranged so that the position and angle can be adjusted with respect to the belt cross section, and one side edge of the forward or return belt is placed inside. A guide device for a belt side edge portion of a pipe conveyor characterized by being pressed. 2. The pressing roller composed of a plurality of rotatable unit rollers is inserted from above or below between both side edges of a forward path belt or a return path belt, and one side edge section is pressed inward. The guide device for the belt side edge portion of the pipe conveyor according to claim 1. 3. The guide device for a belt side edge portion of a pipe conveyor according to claim 1, wherein the pressing roller is composed of a large number of unit rollers each having a narrow width and rotatable individually.