JPH06183531A - Pipe conveyer - Google Patents

Abstract

PURPOSE:To prevent a conveying belt from its damage and running inability by arranging a guide roller for guiding the conveying belt, so as to gradually round it, in a long space, and providing a pressing roller. CONSTITUTION:In a belt rounding region A, a space D between a guide roller 4 in the first guide frame 5-1 and the guide roller 4 in the second guide frame 5-2 and between the guide roller 4 and the guide roller 4 in the third guide frame 5-3 is lengthened. Each pair of right/left pressing rollers 20 for pressing both side parts of a forward path belt 1a toward the inward is arranged. A shaft 21 of each pressing roller 20 is placed so as to face upward and vertically provided in a frame 9. Spaces D, D2 between each paired right/left pressing rollers 20 are gradually decreased in accordance with advancing the forward path belt 1a. In this way, since a long object 8a contained in a conveyed object 8 is prevented from thrusting horizontally on the halfway of a conveying belt 1 tending to be rounded, the conveying belt 1 can be prevented from its damage and running inability.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe conveyor in which a part of an endless belt-shaped conveyor belt is rolled into a pipe shape, and an object to be conveyed is wrapped in the conveyor belt.

[0002]

2. Description of the Related Art FIGS. 8 to 11 show an example of a conventional pipe conveyor.

In this conventional pipe conveyor, an endless belt-shaped conveyor belt (1) is spread in a flat plate shape around a front roller (2) and a rear roller (3) and circulated around the conveyor belt (1). A large number of guide frames (5), (6), (7), which are formed by arranging a plurality of guide rollers (4) in a substantially annular or gutter shape, are provided at an intermediate portion between both rollers (2) and (3) in 1). By passing the material, the material is rolled into a pipe shape and the material to be conveyed (8) is wrapped in the material to be conveyed.

The intermediate guide frame (6) is, as shown in FIG.
A window hole (6a) through which the conveyor belt (1) is inserted in the center of each
Is divided into upper and lower chambers (6b) and lower chamber (6c) where
In each chamber (6b) (6c), the above-mentioned plurality of guide rollers (4) are annularly arranged so as to surround the window hole (6a).
In the window hole (6a) of the upper chamber (6b), the outward belt (1a) which is the outward path of the conveyor belt (1), and in the window hole (6a) of the lower chamber (6c) the conveyor belt (1). The return belts (1b) on the return side of () are inserted, and the belts (1a) and (1b) are held in a pipe shape.

Between the rear roller (3) and the guide frame (6) closest to the rear roller (3), the belt rounding area (from the flat belt-shaped portion of the outward belt (1a) to the pipe-shaped rolling ( In A), there are three guide frames (5) including a gutter-shaped first guide frame (5-1), a second guide frame (5-2) and an annular third guide frame (5-3). ) Is the forward belt with an appropriate interval in the front-back direction.
Frame (9) arranged between (1a) and return belt (1b)
It is erected on the top.

Each of the guide frames (5-1), (5-2), and (5-3) has a plurality of (three, three, and five in the embodiment) guide rollers (4) inscribed therein. Arranged in a gutter-shaped or annular shape in which the diameter of the circle becomes gradually smaller, the outward belt (1a) is flat plate-shaped while passing through each guide frame (5-1) (5-2) (5-3). From the unfolded state, it is gradually rolled into a pipe shape and fed into the guide frame (6).

The three guide frames (7) arranged between the front roller (2) and the guide frame (6) closest to the front roller (2) are the first guide frame (5-1) and the first guide frame (5-1) described above. 2nd guide frame (5-2) and 3rd guide frame (5-
The first guide frame (7-
1), the second guide frame (7-2) and the third guide frame (7-3), and the front end of the return belt (1b) is inserted therethrough to circulate the front roller (2). The flat return belt (1b) is gradually rolled up and fed to the lower chamber (6c) side of the guide frame (6). (10) is each guide frame (7-1) (7-2) (7-
A frame similar to frame (9) for supporting 3).

A hopper (11) for feeding the conveyed article (8) onto the outward belt (1a) is provided above the starting end portion of the outward belt (1a) near the rear roller (3), and the front roller is also provided. A cargo receiving hopper (12) is provided on the (2) side.

Thus, the front roller (2) and the rear roller
Any one or both of (3) is an appropriate driving means.
When rotated in the clockwise direction in FIG. 8 by (not shown), the conveyor belt (1) is endlessly rotated in the direction of the arrow in FIG. 8 and wraps the conveyed object (8) supplied from the hopper (11). In the state
When it passes through the guide frame (5), it is gradually rolled into a pipe shape.

The conveyor belt (1) passes through the window hole (6a) in the upper part of each guide frame (6) and unfolds again when the front roller (2) runs downward from above, Conveyor (8) for receiving goods
It is dropped on (12), and when it passes through the guide frame (7), it is rolled into a pipe shape again, passes through the lower window hole (6a) of each guide frame (6), and returns to the rear roller (3). Circulate.

[0011]

In the pipe conveyor as described above, since the article to be conveyed (8) is wrapped in the pipe shape by the conveyor belt (1) and is conveyed, it is possible to convey, for example, when carrying earth and sand in a cultivated land. The conveyor belt in the article (8)
Long pieces such as wood chips longer than the inner diameter of the pipe-shaped part in (1) (8
a) (see FIG. 10) is included, when the long object (8a) is supplied in a direction orthogonal to the traveling direction of the conveyor belt (1), the conveyor belt (1) At the time of rolling, the long object (8a) is caught in the middle of the conveyor belt (1) which is about to be rolled,
There are problems that the conveyor belt (1) is damaged, or the conveyor belt (1) cannot run.

In view of the above-mentioned problems of the prior art, the present invention provides a method in which a long object contained in a conveyed material supplied on the conveyor belt is in the middle of the conveyor belt which is about to be rolled. It is an object of the present invention to provide a pipe conveyor capable of preventing damage to the transport belt and inability to run the transport belt due to lateral stretching.

[0013]

In order to achieve the above-mentioned object, the present invention is a pipe in which a part of a circulating endless belt-shaped conveyor belt is rolled into a pipe shape, and an object to be conveyed is wrapped in the pipe. In the conveyor, a guide roller that guides the conveyor belt to gradually roll in the belt rolling area from the flat belt-shaped portion of the conveyor belt that is fed to the pipe is rolled up to advance the conveyor belt. It is characterized in that it is arranged at a long interval such that the conveyor belt is slacked in the direction, and a pressure roller for pressing both sides of the conveyor belt inward is provided in the middle thereof.

For implementation, it is preferable to add the following configuration. (A) A vibrating device that vibrates the pressure roller in and out of the conveyor belt is provided. (B) The pressing roller has a substantially polygonal cross section. (C) A plurality of pairs of pressing rollers are arranged at required intervals along the traveling direction of the conveyor belt, and the interval between each pair of pressing rollers is gradually reduced as the conveyor belt advances. (D) An auxiliary roller for guiding the conveyor belt in a slack state is provided between the guide rollers in the belt rounding area. (E) Provide a vibration device that vibrates the auxiliary roller in the vertical direction.

[0015]

[Function] The interval between the guide rollers in the belt rounding area is set to be long enough to cause slack in the conveyor belt,
In addition, by providing a pressure roller that presses both sides of the conveyor belt inward in the middle, the long object contained in the conveyed product is fed in a direction orthogonal to the traveling direction of the conveyor belt. Even if it has been, the long object is moved up and down by the waving phenomenon based on the slack of the conveyor belt,
By passing through the narrowed portion of the conveyor belt which is narrowed by the pressing roller, the direction is changed so as to approach the traveling direction of the conveyor belt.

Therefore, the long object contained in the conveyed product is prevented from being stretched laterally in the middle of the conveyor belt which is about to be rolled, thereby preventing damage of the conveyor belt and failure of traveling of the conveyor belt. be able to.

[0017]

1 and 2 show a first embodiment of the present invention (an embodiment of the invention described in claims 1, 4 and 5). The same members as those of the above-described conventional one are designated by the same reference numerals,
Detailed description is omitted (the same applies to the second and subsequent embodiments described later).

In the first embodiment, the belt rounding area
Inside (A), the guide roller in the first guide frame (5-1)
(4) and the guide roller (4) in the second guide frame (5-2), and between the guide roller (4) in the second guide frame (5-2) and the annular third guide frame (5-3). The distance (D) between the guide roller (4) and the guide roller (4) is longer than that of the conventional one, that is, the forward belt (1a) is slightly bent between them, and between them, A pair of right and left pressing rollers (20) for pressing both sides of the outward belt (1a) inward are provided.

The shaft (21) of each pressing roller (20) is erected on the frame (9) so as to face substantially upward. As shown in FIG. 1, the distance between the left and right pressure rollers (20) of each pair (D
1) (D2) gradually becomes smaller (D1) as the outward belt (1a) progresses.
> D2).

(22) shown in FIG. 1 (b) is a belt rounding area.
An auxiliary roller arranged between the first guide frame (5-1) and the second guide frame (5-2) in (A) guides the bottom of the outward belt (1a) in a slack state. There is. The auxiliary roller (22) may be omitted.

With the structure of the first embodiment, the guide frames (5-1) (5-2) (5-3) in the belt rounding area (A) are formed.
The distance between the guide rollers (4) is long enough to cause slack in the outward belt (1a), and in the middle thereof, both side portions of the outward belt (1a) are pressed inward.
By providing (20), even if the long object (8a) contained in the conveyed object (8) is sent in the direction orthogonal to the traveling direction of the outward belt (1a), the long object (8a) is conveyed. Item (8a) is the outbound belt
The forward belt which is vertically moved by the wavy phenomenon based on the slack of (1a) and is narrowed by the pressing roller (20).
By passing through the narrowed portion (B) of (1a), the direction is changed so as to approach the traveling direction of the outward belt (1a).

Therefore, the long product (8a) contained in the conveyed product (8) is not laterally stretched in the middle of the conveyor belt (1) which is about to be rolled, and the conveyor belt is prevented.
It is possible to prevent the damage of (1) and the inability of the conveyor belt (1) to travel.

FIG. 3 shows a second embodiment of the present invention (claims 1 and 2).
In the present embodiment, a pair of left and right pressing rollers (20) are provided on the frame (9) so as to face each other.
Pair of inward hydraulic cylinder devices (or air cylinder devices)
(23) The piston rod (24) extending from (23) is pivotally supported on a bearing piece (25) whose front shape is fixed to the tip of the piston rod (24), and the piston rod (24) of the hydraulic cylinder device (23) is continuously connected. The reciprocating movement causes the pressing roller (20) to vibrate inward and outward of the rolling outward belt (1a).

The vibration cycle of the pressing roller (20) by the hydraulic cylinder device (23) is related to the traveling speed of the outward belt (1a). For example, the traveling speed of the belt is 120 (m / mi).
If less than n), about 30 (c / s), 120-200 (m / min)
In the case of above, about 60 (c / s), and in the case of exceeding 200 (m / min), about 90 (c / s), etc. are preferable. The other structure is the same as that of the first embodiment.

With the structure of the second embodiment, the same action and effect as those of the first embodiment can be obtained, and the pressing roller (2) is provided by the hydraulic cylinder device (23).
By vibrating (0) in the left and right direction, the long object (8a) contained in the conveyed object (8) is not only moved vertically due to the waving phenomenon based on the slack of the outward belt (1a), but also in the left and right direction. It is possible to vibrate also, and it is possible to increase the efficiency of varying the interval between the narrowed portions (B) and changing the direction of the long object (8a) so as to approach the forward belt (1a). There is.

FIG. 4 shows a third embodiment of the present invention (claims 1, 2).
In the present embodiment, the sectional shape of each of the pair of left and right pressing rollers (26) is such that the corners of a square are rounded and the central portions of the side surfaces are the same. It has a gently recessed shape, and the rounded corners are the outward belt.
By being brought into frictional contact with the outer surface of (1a) and being rotated, lateral vibration is applied to the side portion of the outward belt (1a), and the same action and effect as in the case of the second embodiment can be obtained. I can do it.

According to the third embodiment, there is an advantage that the same operation and effect as in the case of the second embodiment can be achieved with a remarkably simpler configuration than that of the second embodiment.

FIG. 5 shows a fourth embodiment of the present invention (claims 1 and 2).
2 of the present invention), in the present embodiment, as the vibrating device (27), the plane shape pivotally supported on the frame (9) by the shaft (28) directed in the up-down direction is substantially a cross shape. At each corner of the rotating body (29), a pressing roller (30) adapted to come into pressure contact with the outer surface of the outward belt (1a) is pivotally attached with a vertically oriented shaft (31) to the rotating body (29). The fixed pulley (32) and the rotation shaft of the motor (33) fixed to the frame (9) in the vertical direction.
The pulley (35) fixed to (34) and the belt (36) are wound around.

According to the fourth embodiment, the rotating body (29) is rotated by the operation of the motor (33), and the four pressing rollers are rotated.
By sequentially pressing (30) the outer surface of the outward belt (1a), both sides of the outward belt (1a) are vibrated in the inward and outward directions, and substantially the same actions and effects as those of the second embodiment are achieved. be able to.

FIG. 6 shows a fifth embodiment of the present invention (claims 1 and 2).
Embodiments 5 and 6 of the present invention) are shown, and in this embodiment, the front and rear 1 similar to the auxiliary roller (22) of the first embodiment.
An upward hydraulic cylinder device that forms a vibrating device in which each pair of auxiliary rollers (37) is fixed to both sides of the frame (9).
(38) (only one of which is shown) The horizontal plate (40) fixed to the upper end of the piston rod (39) extending upward through the frame (9) has a shaft (41) facing left and right. And the piston rod (39) of the hydraulic cylinder device (38) is continuously reciprocated in the up and down direction to vibrate the auxiliary roller (37) in the up and down direction to move the forward belt (1a) By virtue of both the waving phenomenon based on the slack and the vertical vibration of the auxiliary roller (37), the long object (8a) is strongly vibrated in the vertical direction, and the direction of the long object (8a) approaches the forward direction of the forward belt (1a). The efficiency of such changes can be increased.

The structure of the fifth embodiment can be implemented in combination with any structure of the first to fourth embodiments.

The present invention can be modified in many ways other than the above-mentioned embodiment. For example, the number of pressing rollers (30) in the fourth embodiment shown in FIG. 5 is set to 2, 3, or 5 or more, and they are evenly arranged on the outer circumference of the rotating body (29). Good.

In each of the above embodiments, the conveyor belt (1) is used.
In the case of a pipe conveyor in which the outer surface of one end and the inner surface of the other end are overlapped to be rolled into a pipe shape, as shown in FIG. 7, the inner surfaces of both ends of the conveyor belt (42) are aligned with each other. The present invention can be effectively applied to a pipe conveyor that is polymerized and rolled into a pipe shape, or a pipe conveyor in which both side edges are simply brought into contact with or brought into proximity.

[0034]

EFFECTS OF THE INVENTION According to the present invention, a long object contained in a conveyed object is less likely to be caught in the middle of a conveyor belt which is being rolled or has already been rolled, so that a long object can be caught. It is possible to solve the problems such as clogging of conveyed objects in the conveying belt, damage to the conveying belt, and impossibility of traveling.

[Brief description of drawings]

FIG. 1 shows a starting end portion of a forward path belt in a pipe conveyor according to a first embodiment of the present invention, in which (a) is a cross-sectional plan view,
(b) is a side view.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is a sectional view of a portion similar to FIG. 2 in the pipe conveyor according to the second embodiment of the present invention.

FIG. 4 is a cross-sectional plan view of a main part of a pipe conveyor according to a third embodiment of the present invention.

FIG. 5 is a cross-sectional plan view of essential parts of a pipe conveyor according to a fourth embodiment of the present invention.

FIG. 6 is a vertical cross-sectional side view of essential parts of a pipe conveyor according to a fifth embodiment of the present invention.

FIG. 7 is a vertical cross-sectional view showing another example of a conveyor belt of a pipe conveyor to which the present invention can be applied.

FIG. 8 is a schematic side view showing an example of a conventional pipe conveyor.

9 is an enlarged sectional view taken along line IX-IX in FIG.

10 is a cross-sectional plan view of a portion similar to FIG. 1 (a) in the conventional pipe conveyor shown in FIG.

11 is an enlarged cross-sectional view taken along the line XI-XI of FIG.

[Explanation of symbols]

(1) Conveyor belt (1a) Forward belt (1b) Return belt (2) Front roller (3) Rear roller (4) Guide roller (5) (6) (7) Guide frame (8) Conveyed object (8a) Long object (9) (10) Frame (11) Hopper (12) Load receiving hopper (20) Pressing roller (21) Shaft (22) Auxiliary roller (23) Hydraulic cylinder device (vibrating device) (24) Piston rod (25 ) Bearing piece (26) Pressing roller (27) Vibration device (28) Shaft (29) Rotating body (30) Pressing roller (31) Shaft (32) (35) Pulley (33) Motor (34) Rotating shaft (36) Belt (37) Auxiliary roller (38) Hydraulic cylinder device (vibrating device) (39) Piston rod (40) Horizontal plate (41) Shaft (42) Conveyor belt (A) Belt rounding area (B) Constriction (D) ( D1) (D2) interval

Claims (6)

[Claims] 1. A pipe conveyor in which a part of an endless belt-shaped conveyor belt that circulates is rolled into a pipe, and the conveyor is wrapped by the conveyor to convey the conveyor belt. A guide roller that guides the conveyor belt so that it gradually rolls in the belt rounding area from the part that has been deployed to the point where it is rolled into a pipe shape, at a long interval such that slack occurs in the conveyor belt in the traveling direction of the conveyor belt. A pipe conveyor characterized in that it is provided with a pressing roller that presses both sides of the conveyor belt inwardly in the middle thereof. 2. The pipe conveyor according to claim 1, further comprising a vibrating device for vibrating the pressing roller inward and outward of the conveyor belt. 3. The pipe conveyor according to claim 1, wherein the pressing roller has a substantially polygonal cross section. 4. A plurality of pairs of pressing rollers are arranged at required intervals along the traveling direction of the conveyor belt, and the interval between each pair of pressing rollers is gradually reduced as the conveyor belt advances. The pipe conveyor according to any one of 1 to 3. 5. The pipe conveyor according to claim 1, wherein an auxiliary roller for guiding the conveyor belt in a slack state is arranged between the guide rollers in the belt rounding area. 6. The pipe conveyor according to claim 5, further comprising a vibrating device for vibrating the auxiliary roller in a vertical direction.