JP2019031365A - Correction apparatus, and pipe conveyor provided with correction apparatus - Google Patents

Abstract

To properly correct twisting of a cylindrical portion.SOLUTION: There is provided a correction apparatus 18 attached to a pipe conveyor comprising a pair of rotation rollers arranged at an interval mutually, an endless belt body 13 wound between the pair of rotation rollers, a support device 14 made to be cylindrical by rounding at least a part of an intermediate portion located between the pair of rotation rollers in a belt width direction H of the belt body, and a frame 15 provided with the support device to correct twisting of a cylindrically round cylindrical portion 13b of the belt body. There are provided a string body 28 by which both end portions are attached to the frame in a longitudinal direction in such a manner that an intermediate portion in the longitudinal direction straddles the cylindrical portion in the belt width direction, and a plurality of correction rollers 29 connected to an intermediate portion of the string body and arranged in series. The correction rollers each are brought into contact with an outer peripheral surface of the cylindrical portion, and rotated around the string body 28 while moving in an axial direction of the cylindrical portion.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a straightening device and a pipe conveyor with a straightening device.

Conventionally, a pair of rotating rollers disposed at a distance from each other, an endless belt body wound between the pair of rotating rollers, and the belt body is positioned between the pair of rotating rollers. There is known a pipe conveyor that includes a support device in which at least a part of the intermediate portion is rounded in a belt width direction to form a cylinder, and a frame to which the support device is attached. In this type of pipe conveyor, a cylindrical portion of the belt body that is rounded into a cylindrical shape may be twisted around the central axis in the course of use.
As a straightening device for a pipe conveyor that corrects this twisting, for example, a configuration as shown in Patent Document 1 below is known.

Japanese Patent Laid-Open No. 9-110125

  However, the conventional correction device for a pipe conveyor has a problem that it is difficult to properly correct the twist of the cylindrical portion.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a straightening device that can properly correct twisting of a cylindrical portion, and a pipe conveyor with a straightening device.

  In order to solve the above-described problems and achieve such an object, the correction device of the present invention is wound between a pair of rotating rollers disposed at a distance from each other and the pair of rotating rollers. An endless belt main body, a support device for rounding in the belt width direction at least a part of an intermediate portion of the belt main body located between the pair of rotating rollers, and a support device are attached. A correction device that corrects twisting around a central axis of a cylindrical portion of the belt body that is rounded into a cylindrical shape. Both ends in the longitudinal direction are connected to the frame attached to the frame and an intermediate portion of the string so as to straddle the tubular portion in the belt width direction, and are arranged in series in the longitudinal direction of the string. Established A plurality of straightening rollers, and the straightening rollers abut on the outer peripheral surface of the cylindrical portion, and rotate around the string body as the cylindrical portion moves in the axial direction along the central axis. It is characterized by being able to.

  In addition, the pipe conveyor with a correction device of the present invention includes a pair of rotating rollers disposed at a distance from each other, an endless belt body wound between the pair of rotating rollers, and the belt body. A support device that rounds in the belt width direction at least a part of an intermediate portion located between the pair of rotating rollers, a frame to which the support device is attached, and a cylindrical shape among the belt main body. A pipe conveyor with a straightening device comprising a straightening device for straightening a twist around a central axis of a cylindrical part rounded into two, wherein the straightening device is the straightening device of the present invention.

According to these inventions, since the plurality of correction rollers and the string body are provided, the plurality of correction rollers are flexibly relative to each other by deforming the string body in accordance with the outer peripheral surface shape and the outer diameter of the cylindrical portion. Can be displaced. Therefore, a plurality of correction rollers can be brought into contact with each other over a wide range on the outer peripheral surface of the cylindrical part regardless of the outer peripheral surface shape and outer diameter of the cylindrical part. The twist of the cylindrical portion can be properly corrected by the plurality of correction rollers.
In addition, since a plurality of correction rollers can be brought into contact with each other over a wide range on the outer peripheral surface of the cylindrical portion, the cylindrical portion is caused in the axial direction of the pipe conveyor due to the brazing of the belt body. In the case of deformation when passing through a specific location, the corrective device is selectively disposed at this location, so that the outer peripheral surface shape of the cylindrical portion can be reliably restored.

  Here, as for the said correction apparatus, the connection part which can be attached or detached to the said frame may be separately arrange | positioned at the both ends of the longitudinal direction in the said string.

  In this case, since the connecting portions that can be attached to and detached from the frame are separately provided at both ends in the longitudinal direction of the string body, in the pipe conveyor, the cylindrical portion is twisted, and the specific axial direction is specified. A correction device can be installed at the location afterwards.

  Moreover, the said pipe conveyor with a correction | amendment apparatus may be arrange | positioned so that at least one of the both ends of the longitudinal direction in the said string body can adjust the position of the said axial direction relative to the other to the said flame | frame.

  In this case, since at least one of both ends in the longitudinal direction of the string body is disposed on the frame so that the axial position relative to the other can be adjusted, the amount and direction of twisting of the cylindrical portion Accordingly, it is possible to adjust the relative axial positions of both ends in the longitudinal direction of the string body, and it is possible to reliably correct the twist of the cylindrical portion. Since the string body is deformed during this adjustment, the plurality of correction rollers can be smoothly displaced along the outer peripheral surface of the cylindrical portion.

  According to this invention, the twist of a cylindrical part can be corrected appropriately.

1 is a schematic overall view of a pipe conveyor with a correction device shown as an embodiment according to the present invention. It is AA arrow sectional drawing of FIG. It is a BB arrow directional cross-sectional view of FIG. It is a disassembled perspective view which shows the outline of the principal part of the pipe conveyor with a correction apparatus shown in FIG.

Hereinafter, an embodiment of a pipe conveyor with a correction device according to the present invention will be described with reference to FIGS.
The pipe conveyor 1 with the straightening device includes a pair of rotating rollers 11 and 12 disposed at a distance from each other, an endless belt body 13 wound between the pair of rotating rollers 11 and 12, and the belt. Of the main body 13, at least a part of an intermediate portion 13a positioned between the pair of rotating rollers 11 and 12 is rounded in the belt width direction H to form a cylindrical shape, and a frame 15 to which the supporting device 14 is attached. And a correction device 18 that corrects the twist around the central axis O of the cylindrical portion 13b of the belt body 13 that is rounded into a cylindrical shape.

One of the pair of rotating rollers 11 and 12 is a driving roller 11 connected to a driving means (not shown), and the other is a driven roller 12.
As shown in FIG. 1, the intermediate portion 13a of the belt body 13 travels from the driven roller 12 toward the driving roller 11, and travels from the driving roller 11 toward the driven roller 12, and also in the vertical direction on the carrier side. Both sides of the return side located below are rounded into a cylindrical shape by the support device 14. Hereinafter, a portion of the intermediate portion 13a of the belt body 13 that is rounded into a cylindrical shape by the support device 14 is referred to as a cylindrical portion 13b. The central axes O of the carrier-side cylindrical portion 13b and the return-side cylindrical portion 13b are parallel to each other.
Hereinafter, a direction along the central axis O is referred to as an axial direction, and in a plan view viewed from the axial direction, a direction orthogonal to the central axis O is referred to as a radial direction, and a direction around the central axis O is defined as a circumferential direction. It is called direction.

A plurality of beam-like frames 15 extending in the axial direction are disposed between the pair of rotating rollers 11 and 12. In the illustrated example, four frames 15 are arranged, and two frames 15 are arranged at equal positions in the vertical direction at intervals in the belt width direction H, and at the same positions in the belt width direction H. Two are arranged at intervals.
Here, between the driven roller 12 and the frame 15, a portion through which the intermediate portion 13 a on the carrier side passes, and between the driving roller 11 and the frame 15, the intermediate portion 13 a on the return side passes. A belt rounding portion (not shown) that rounds the flatly developed belt main body 13 into a cylindrical shape is disposed in each of the portions. As the belt body 13 travels from the rotating rollers 11 and 12 toward the frame 15, the belt rounding portion gradually moves the belt body 13 so that both side ends thereof are directed inward in the belt width direction H. When the belt main body 13 arrives at the support device 14 attached to the frame 15, both end portions of the belt main body 13 are overlapped in the vertical direction.

Of the portion between the driving roller 11 and the frame 15, the portion through which the intermediate portion 13 a on the carrier side passes, and the portion between the driven roller 12 and the frame 15 through which the intermediate portion 13 a on the return side passes. Each is provided with a belt developing portion (not shown) that flatly develops the belt body 13 rolled into a cylindrical shape. Thereby, the belt main body 13 passes on the outer peripheral surface of the rotating rollers 11 and 12 in a state where the belt main body 13 is flatly developed.
A hopper 16 is provided above the driven roller 12 in the vertical direction to drop the object to be conveyed onto the surface of the intermediate portion 13a on the carrier side.
Below the drive roller 11 in the vertical direction, there is provided a receiving box 17 into which an object to be conveyed on the surface of the intermediate portion 13a on the carrier side is put.

  As shown in FIG. 1, a plurality of support devices 14 are arranged on the frame 15 at intervals in the axial direction. As shown in FIGS. 2 and 4, the support device 14 is attached to the surface of the support frame 22, the support frame 22 having a first passage hole 21 through which the tubular portion 13 b passes in the axial direction. A bracket 23 and a shape retaining means 24 attached to the bracket 23 and contacting the cylindrical portion 13b to hold the cylindrical portion 13b in a cylindrical shape are provided.

The support frame 22 is disposed in a state where the front and back surfaces are oriented in the axial direction. The planar view shape of the support frame 22 viewed from the axial direction is a rectangular shape that is long in the vertical direction, as shown in FIG. The support frame 22 is attached to the frame 15. Four corners of the support frame 22 are attached to the four frames 15.
Two first passage holes 21 are formed in the support frame 22 at intervals in the vertical direction. The upper first passage hole 21 passes the carrier-side tubular portion 13b in the axial direction, and the lower first passage hole 21 passes the return-side tubular portion 13b in the axial direction. The first passage hole 21 is located coaxially with the central axis O.

A plurality of the shape retaining means 24 and the bracket 23 are arranged on the surface of the support frame 22 at intervals in the circumferential direction.
The shape-retaining means 24 is a rotating body that abuts on the outer peripheral surface of the cylindrical portion 13b and is rotated in accordance with the movement of the cylindrical portion 13b in the axial direction. The axis of rotation of the shape retaining means 24 extends along a tangent line of a circle centered on the central axis O. The outer peripheral surface of the shape retaining means 24 protrudes radially inward from the inner peripheral edge of the first passage hole 21.

The bracket 23 includes an attachment plate 23a attached to the surface of the support frame 22, and a pair of support plates 23b that support the shape retaining means 24 so as to be rotatable about the rotation axis.
As shown in FIGS. 2 and 4, the support frame 22 and the bracket 23 are formed with a plurality of insertion holes 22 a through which the bolts 26 communicate with each other. The bolt 26 is inserted into the insertion hole 22 a from the front surface side of the support frame 22, and a nut 27 is screwed to a portion of the bolt 26 protruding from the back surface of the support frame 22.
In the illustrated example, the plurality of insertion holes 22 a formed in the support frame 22 are arranged at the opening peripheral edge portion of the first passage hole 21 in the support frame 22. The plurality of insertion holes 22a formed in the support frame 22 are arranged on the circumference centered on the central axis O at equal intervals (see FIG. 2). Two insertion holes formed in the bracket 23 are arranged in each mounting plate 23a.

In the present embodiment, the correction device 18 includes a string body 28 and a plurality of correction rollers 29 as shown in FIGS. 3 and 4. As shown in FIGS. 1 and 4, the correction device 18 is attached to a portion of the frame 15 that is away from the support device 14 in the axial direction.
The string body 28 is attached to the frame 15 at both ends in the longitudinal direction so that the middle portion in the longitudinal direction straddles the tubular portion 13b of the belt body 13 in the belt width direction H. Both ends of the string body 28 in the longitudinal direction are individually attached to two frames 15 that are positioned on the upper side in the vertical direction of the four frames 15 and are spaced apart in the belt width direction H. The string body 28 extends gradually downward from the outside in the belt width direction H toward the inside. An intermediate portion in the longitudinal direction of the string body 28 is divided at a plurality of locations along the longitudinal direction, and one correction roller 29 is disposed at each divided portion. The string body 28 is formed of, for example, stainless steel, aramid, nylon, or the like and is freely deformable.

  The correction roller 29 is connected to an intermediate portion of the string body 28 and is disposed coaxially with the string body 28. A plurality of correction rollers 29 are arranged and connected to an intermediate portion of the string body 28 in a state of being serially arranged along the longitudinal direction of the string body 28. Three correction rollers 29 are provided. As shown in FIG. 3, the correction roller 29 includes a core body 29 a extending in the longitudinal direction of the string body 28, and an outer cylinder 29 b that is rotatably mounted on the core body 29 a. The outer cylinder 29b abuts on the outer peripheral surface of the cylindrical portion 13b, and is rotated around the string body 28 and the core body 29a as the cylindrical portion 13b moves in the axial direction. The rotation axis of the correction roller 29 extends along a tangent of a circle centered on the central axis O. The correction roller 29 is in contact with the lower portion of the outer peripheral surface of the carrier-side cylindrical portion 13b. The outer diameter of the correction roller 29 is smaller than the length of the correction roller 29 in the rotation axis direction.

  Both end portions of the core body 29a protrude outward from the outer cylinder 29b. The end of the core body 29 a and the dividing edge of the string body 28 are connected via a connecting body 30. The connecting body 30 is formed in a cylindrical shape whose one end is closed and the other end is open. Among these, the connecting body 30 projects inward from the opening of the other end, and the outer peripheral surface at the end of the core body 29a. An engagement protrusion is formed to engage with the engagement recess formed in the, and a through hole into which the dividing edge of the cord body 28 is inserted is formed in the closing plate at one end. In the closing plate, a first holding member 32 that holds the dividing edge of the string body 28 is disposed at the opening peripheral edge portion of the through hole in the inner surface facing the inside of the coupling body 30. The 1st holding member 32 hold | maintains the parting edge of the string 28 by fastening or joining, for example.

Connection portions 31 that can be attached to and detached from the frame 15 are disposed at both ends of the string body 28 in the longitudinal direction.
Here, the frame 15 is made of angle steel, and the first horizontal plate 15a whose front and back surfaces are directed upward and downward in the vertical direction, and the outer end portion in the belt width direction H of the first horizontal plate 15a toward the inner side in the vertical direction. And a first vertical plate 15b whose front and back faces in the belt width direction H.

  The connection part 31 is made of channel steel, and includes a second horizontal plate 31a whose front and back surfaces are directed upward and downward in the vertical direction, and a pair of second vertical plates 31b whose front and back surfaces are directed in the belt width direction H. The second vertical plate 31b extends upward from both end portions in the belt width direction H of the second horizontal plate 31a. A through hole into which the end portion of the cord body 28 is inserted is formed in the second horizontal plate 31a, and the end portion of the cord body 28 is held at the opening peripheral edge portion of the through hole on the upper surface of the second horizontal plate 31a. 2 A holding member 33 is provided. The second holding member 33 holds the end of the string body 28 by fastening or joining, for example.

  In the second vertical plate 31b, through holes penetrating in the belt width direction H are formed separately. The first vertical plate 15b of the frame 15 is inserted between the pair of second vertical plates 31b. Bolts 34 are integrally inserted through the mounting holes 15c formed in the first vertical plate 15b and the through holes of the second vertical plate 31b. The bolt 34 is inserted from a through hole of the second vertical plate 31b located outside the belt width direction H of the pair of second vertical plates 31b, and the second vertical plate 31b located inside the belt width direction H. It protrudes inward in the belt width direction H from the through hole. A connecting portion 31 is attached to the frame 15 by screwing a nut 35 into the protruding portion of the bolt 34. The connection portion 31 can be detached from the frame 15 by releasing the screwing of the bolt 34 and the nut 35. In the illustrated example, spacers are arranged separately between the first vertical plate 15b and the pair of second vertical plates 31b.

At least one of both ends in the longitudinal direction of the string body 28 is disposed on the frame 15 so that the position in the axial direction relative to the other can be adjusted.
The mounting hole 15c formed in the frame 15 is a long hole that is long in the axial direction. By moving the bolt 34 together with the connecting portion 31 in the axial direction within the elongated hole, the relative axial position of both ends of the string body 28 in the longitudinal direction can be adjusted. In the illustrated example, both the mounting holes 15c formed in the two frames 15 positioned on the upper side in the vertical direction are long holes. The lengths in the axial direction and the positions in the axial direction of the mounting holes 15c are equal to each other. The mounting hole 15c is formed in each part of the frame 15 located between the support devices 14 adjacent to each other in the axial direction.

  As described above, according to the pipe conveyor 1 with the straightening device according to the present embodiment, since the plurality of straightening rollers 29 and the string body 28 are provided, corresponding to the outer peripheral surface shape and the outer diameter of the cylindrical portion 13b, By deforming the string body 28, the plurality of correction rollers 29 can be flexibly displaced relative to each other. Therefore, it becomes possible to make the some correction | amendment roller 29 contact | abut over the wide range in the outer peripheral surface of the cylindrical part 13b irrespective of the outer peripheral surface shape and outer diameter of the cylindrical part 13b, and the said axial direction of the cylindrical part 13b With the movement, twisting of the tubular portion 13b can be properly corrected by the plurality of correction rollers 29.

Further, since the plurality of correction rollers 29 can be brought into contact with each other over a wide range on the outer peripheral surface of the cylindrical portion 13b, the cylindrical portion 13b is caused to become a pipe conveyor due to the brazing of the belt body 13 or the like. In the case of deformation when passing through a specific location in the axial direction, the corrective device 18 is selectively disposed at this location, so that the outer peripheral surface shape of the cylindrical portion 13b can be reliably restored. .
Moreover, since the connection part 31 which can be attached or detached to the flame | frame 15 is each arrange | positioned in the both ends of the longitudinal direction in the string body 28, in the pipe conveyor, the twist has generate | occur | produced in the cylindrical part 13b. The correction device 18 can be disposed afterwards at a specific location in the direction.

  In addition, since at least one of the longitudinal ends of the string body 28 is disposed on the frame 15 so that the position in the axial direction relative to the other can be adjusted, the amount of twisting of the cylindrical portion 13b. Depending on the orientation, the relative axial positions of the longitudinal ends of the string 28 can be adjusted, and the twist of the tubular portion 13b can be reliably corrected. Since the string body 28 is deformed during this adjustment, the plurality of correction rollers 29 can be smoothly displaced along the outer peripheral surface of the cylindrical portion 13b.

  The technical scope of the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention.

For example, in the above-described embodiment, a configuration in which the string body 28 is divided in the longitudinal direction is shown, but a string body that is integrally formed over the entire length in the longitudinal direction and penetrates a plurality of correction rollers may be employed. . Moreover, the connection body 30 does not need to be arrange | positioned.
In the said embodiment, the intermediate part of the string 28 straddled the belt width direction H under the cylindrical part 13b, and the correction | amendment roller 29 showed the structure contact | abutted to the outer peripheral surface in the lower part of the cylindrical part 13b. However, instead of this, for example, the intermediate portion of the cord body 28 straddles the upper portion of the tubular portion 13b in the belt width direction H, and the correction roller 29 is in contact with the outer peripheral surface of the upper portion of the tubular portion 13b. It may be adopted. In this configuration, both end portions in the longitudinal direction of the cord body 28 are attached to two frames 15 which are positioned on the lower side in the vertical direction of the four frames 15 and spaced apart in the belt width direction H. May be. And in the cylindrical part 13b, you may make the correction | amendment roller 29 contact | abut on both the upper part and lower part in the outer peripheral surface of the same location of the said axial direction.

In the above-described embodiment, the configuration in which the carrier-side tubular portion 13b is straightened by the straightening device 18 is shown, but the return-side tubular portion 13b may be straightened, or both the carrier side and the return side may be straightened. The cylindrical portion 13b may be corrected.
In the above-described embodiment, the configuration in which the correction device 18 includes the three correction rollers 29 is shown. However, the configuration in which the correction device 18 includes two or four or more correction rollers 29 according to the outer diameter or the like of the cylindrical portion 13b is employed. May be.
Further, the connection part 31 is not limited to the above-described embodiment, and may be appropriately changed as long as the connection part 31 is detachable from the frame 15. Further, the connection portion 31 and the frame 15 are not limited to the above-described embodiment, and may be appropriately changed as long as the position of the connection portion 31 in the axial direction can be adjusted.

In the above-described embodiment, the frame 15 is formed in a beam shape extending in the axial direction and has four configurations. However, for example, a frame shape continuously extending over the entire circumference, or in the axial direction. You may change suitably, such as forming in the cylinder shape extended.
In the above-described embodiment, both the carrier side and the return side of the intermediate portion 13a of the belt body 13 are rounded into a cylindrical shape by the support device 14, but the present invention is limited to only one of the carrier side and the return side. The present invention can also be applied to a configuration in which the cylinder is rounded.

  In addition, it is possible to appropriately replace the constituent elements in the above-described embodiments with well-known constituent elements without departing from the spirit of the present invention, and the above-described modified examples may be appropriately combined.

DESCRIPTION OF SYMBOLS 1 Pipe conveyor with correction apparatus 11, 12 Rotating roller 13 Belt main body 13a Middle part 14 Support apparatus 15 Frame 18 Correction apparatus 21 First passage hole 22 Support frame 28 String body 29 Correction roller 31 Connection part H Belt width direction O Center axis

Claims (4)

A pair of rotating rollers arranged spaced apart from each other;
An endless belt body wound between the pair of rotating rollers;
Among the belt main body, a support device that rounds at least a part of an intermediate portion located between the pair of rotating rollers in a belt width direction to form a cylinder,
A correction device that corrects torsion around a central axis of a cylindrical portion of the belt body that is rounded into a cylindrical shape, and is attached to a pipe conveyor that includes the frame to which the support device is attached,
A string body in which both end portions in the longitudinal direction are attached to the frame such that an intermediate portion in the longitudinal direction straddles the tubular portion in the belt width direction;
A plurality of correction rollers connected to the middle portion of the string body and arranged in series in the longitudinal direction of the string body,
The straightening roller is in contact with the outer peripheral surface of the cylindrical portion, and is rotated around the string body as the cylindrical portion moves in the axial direction along the central axis.   The straightening device according to claim 1, wherein connection portions that can be attached to and detached from the frame are disposed at both ends in the longitudinal direction of the string body. A pair of rotating rollers arranged spaced apart from each other;
An endless belt body wound between the pair of rotating rollers;
Among the belt main body, a support device that rounds at least a part of an intermediate portion located between the pair of rotating rollers in a belt width direction to form a cylinder,
A frame to which the support device is attached;
Of the belt body, a pipe conveyor with a straightening device comprising a straightening device that corrects twisting around a central axis of a tubular portion rounded into a tubular shape,
The said straightening apparatus is a straightening apparatus of Claim 1 or 2, The pipe conveyor with a straightening apparatus characterized by the above-mentioned.   4. The correction according to claim 3, wherein at least one of both ends of the string body in the longitudinal direction is disposed on the frame such that the position in the axial direction relative to the other is adjustable. Pipe conveyor with equipment.

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