JP2000203711A - Conveying chain and pipe conveyer using divided type blade - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pipe conveyer using a divided type blade formed so that a residue can be removed by improving scraping efficiency without generating floating-up of the blade even in a meandering place, by forming an edge part in the bottom part side of the blade into a circular arc shape approximated to a diameter of an inner wall of a pipeline. SOLUTION: A slide edge part 17 on the bottom part side of a blade 7 of a conveying chain 5 provided in a pipe conveyer 1 is formed into a circular arc shape having almost an equal diameter to the internal peripheral surface of a pipeline 10 of the pipe conveyer 1 abutting to this slide edge part 17. A connection position of a link chain is set to a position where a vertical directional line 6a is prevented from protruding to the lower side from the slide edge part 17 of the blade 7. A position of the center of gravity of the blade 7 is set to a position resetting the slide edge part 17 to the downward of an inner wall of the pipeline 10, and the blade 7 comprises a plurality of removably connected divided constitution parts 7A, 7B.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transport chain using divided blades used for a pipe conveyor and a structure of a pipe conveyor using the same.

[0002]

2. Description of the Related Art Conventionally, there has been known a configuration in which an endless transport chain is stretched through a meandering pipe conveyor so as to pass through a shortest distance in the conveyor, and the transport chain is circulated. Here, as shown in FIG. 7 and FIG. 8, the transport chain is an egg-shaped link 6a, 6b that alternates vertically and horizontally.
A configuration is known in which an end of a blade 7 ′ having a circular outer circumference is connected to a link chain connecting the two. In this transport chain, the blade 7 'can be advanced while rotating the blade 7' about the link chain in the meandering pipeline, and the guide by the auxiliary roller is not required. However, in the conventional transport chain, since the vertical link 6b protrudes outward from the blade 7 'in the straight course, the vertical link 6b is always used when the transport chain slides in the pipeline 10. The lower side of the pipe is rubbed, so that the wear of the pipe 10 is fast.
There was a defect that the hole was easily damaged, such as a hole in 0. Further, at the meandering point, the vertical link 6b is used as a fulcrum, and the blade 7 'is inclined to one of the right and left and advances while abutting against the inner wall of the pipeline 10, so that the lower side of the vertical link 6b is 'Will travel in the pipeline while being supported at the two abutment points. If the object to be transported is strongly attached in the pipeline 10, the blade rises over the blade and cannot be sufficiently scraped. In addition, when it is desired to change the material of the blade depending on the type and use of the transferred object, it is necessary to replace the entire transfer chain, so that there is a disadvantage that the versatility is poor.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and its main problems are as follows.
By making the edge on the bottom side of the blade an arc shape approximating the diameter of the inner wall of the conduit, the blade can be lifted even at a meandering position without raising the blade, thereby eliminating the residue and eliminating the residue. It is another object of the present invention to provide a transport chain in which the bottom edge of the blade is always returned to the lower surface of the pipe, and a pipe conveyor using the same. Another object of the present invention is to provide a transport chain and a pipe conveyor using the same, in which the blades are divided and the divided pieces can be appropriately replaced.

[0004]

According to the present invention, in order to solve the above-mentioned problems, according to the first aspect of the present invention, the link is connected to an endless chain in which vertical links and horizontal links are alternately connected, and the outer periphery is connected. A transfer chain circulating in a pipe conveyor provided with a divided blade formed in a substantially circular shape, wherein a sliding edge on the bottom side of the blade has an inner periphery of a pipe line of the pipe conveyor contacting the sliding edge. It is formed in an arc shape having substantially the same diameter as the surface, and the connecting position of the link chain is set to a position where the vertical link does not project below the sliding edge of the blade, A technique in which the position of the center of gravity of the blade is set at a position where the sliding edge is returned below the inner wall of the conduit, and the blade is composed of a plurality of divided components that are detachably connected. Take appropriate measures That.

Further, in the invention of claim 2, the blade is formed by connecting a plate made of copper or a copper alloy at least on the sliding edge portion, and the blade is worn down by sliding with the inner wall surface of the pipeline. A technical measure is taken that a small amount of copper powder can adhere to the sliding surface of the member constituting the other sliding edge and slide the inner wall surface.

Further, according to the third aspect of the present invention, the pipe conveyor includes a split type blade which is connected to an endless chain in which vertical links and horizontal links are alternately connected, and has a substantially circular outer periphery. A sliding edge on the bottom side of the blade is formed in an arc shape having substantially the same diameter as the inner peripheral surface of the pipe line of the pipe conveyor in contact with the sliding edge. The connecting position of the link chain is set to a position where the vertical link does not project below the sliding edge of the blade, and the center of gravity of the blade moves the sliding edge to the line. The blade is set at a position to be returned below the inner wall, and the blade has one sliding component having a sliding edge and a lateral link fixed thereto, and the other is detachably attached to the dividing component and the other is provided. The other forming the edge Is made up of a split configuration part, have taken the technical means that.

According to the fourth aspect of the present invention, there is provided an endless transport chain which is connected to an endless chain in which a vertical link and a horizontal link are alternately connected and has a blade whose outer periphery is formed in a substantially circular shape. A pipe conveyor to be driven to circulate, wherein a sliding edge on the bottom side of the blade is formed in an arc shape having substantially the same diameter as an inner peripheral surface of a pipe of the pipe conveyor in contact with the sliding edge, The other edge is formed in an arc shape set to a diameter that can maintain a space that does not impede the degree of freedom of rotation of the blade in the hollow portion of the pipe path of the pipe conveyor, and the connecting position of the link chain,
The vertical link is set at a position where it does not protrude below the sliding edge of the blade, and the position of the center of gravity of the blade is set at a position where the sliding edge is returned below the inner wall of the pipeline. In this case, the blade has a technical means that the blade includes a plurality of divided components that are detachably connected.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a conveyor chain and a pipe conveyor using a split type blade according to the present invention will be described below with reference to the drawings. As shown in FIG. 1, the pipe conveyor 1 includes a pipeline 2 having a meandering pipeline 10 formed by a combination of a straight pipe and an elbow pipe bent substantially in an L shape or a U shape. Is provided. The pipeline 2 is provided with an inlet 3 for an object to be transported at an appropriate location, and a disposal port 4 for discarding or transporting the object to be transported is provided at a predetermined location.

An endless transport chain 5 is built in the pipe conveyor 1 and is provided near a disposal port 4 and is wound around a driving wheel 9 driven by a motor (not shown) to be connected to the pipe. It is stretched so as to connect the shortest distance in the line and circulates.
Here, in the pipe conveyor 1, the direction in which the transport chain 5 is folded back by the drive wheels 9 is not particularly limited.
The vertical direction or the horizontal direction in the illustrated example may be used. Further, the pipeline may be laid out one-way without any turn.

[0010] Next, the transport chain 5 includes an oval link 6.
An endless chain is formed by connecting a large number of pieces at right angles to each other so as to be vertical (6a) and horizontal (6b), and an endless chain is fixed. , The transported object A is pushed. The blade 7 has a two-part configuration. In the case of the illustrated example, the blade 7 has a sliding edge part 17 which will be described later, and a lower part 7A to which the lateral link 6b is fixed, and a lower part 7A. And an upper divided component 7B detachably attached to form the other edge.

That is, as shown in FIGS. 2 to 4, the lower divided component portion 7A has a substantially arcuate shape, and has a notch at its center to form a concave portion 7a for fixing a link. The screw holes 12 are provided in a pair on the left and right. The lateral link 6b is integrally welded to the recess 7a.
The upper divided component 7B has a substantially semicircular shape, and has an L-shaped notch 7b formed on the lower side, and the protruding piece 7c is hung on the lateral link 6b and positioned. You. Here, in the illustrated example, the protruding piece 7c overlaps with a piece adjacent to one of the concave portions 7a of the lower divided component 7A so as to form the same edge and to constitute a part of the sliding edge 17. Has become.

The L-shaped notch 7b is set to a size that overlaps with the recess 7a, protrudes the lateral link 6b in the front-rear direction, and closes the upper part thereof.
A pair of screw holes 13 is formed on the left and right sides of the halfway position in correspondence with the screw holes 12 of the lower divided component 7A. Therefore, the upper divided component 7B can be superimposed on the lower divided component 7A, the bolts 14 can be passed through the screw holes 12 and 13, and both can be fixedly assembled.

The blade 7 thus formed is
As shown in FIG. 6, the bottom sliding edge 17 formed in the lower divided component 7A is substantially the same as the inner peripheral surface of the pipe 10 of the pipe conveyor in contact with the sliding edge 17. It is formed in an arc shape having an approximate radius R1. In the illustrated example, the sliding edge portion 17 is formed in an arc of about 90 degrees, in other words, is set so as to abut about 1/4 of the inner peripheral surface of the pipeline 10. In this invention

The other edges 18 except for the sliding edge 17 formed on the upper divided component 7B are formed in a substantially arc shape so that a gap can be formed without blocking the inside of the pipeline 10. However, in this embodiment, the sliding edge portion 17 is formed in an arc shape having a radius R2 shorter than the sliding edge portion 17, and the radius R2 does not hinder the rotational freedom of the blade in the hollow portion of the pipe 10 of the pipe conveyor. It is formed in a length that can keep the space. In the illustrated example, from the relationship with the size of the blade, the edge 18 is
Although it is formed in an arc shape with a radius R2 set so that a space of approximately 20% to 30% of the hollow portion of the conduit 10 can be maintained, it may be in a range that does not hinder rotation as described above.
The center of gravity of the blade 7 is set at a low position such that the sliding edge 17 returns to the bottom of the inner wall of the pipeline 10. In the case of the illustrated example, the position of the center of gravity only needs to be set within a fan-shaped (about 1/4 circle) region G formed along the sliding edge portion 17 and having substantially the same radius R1. . In the present invention, the above numerical values are merely examples, and the present invention is not limited thereto.

The blade 7 is also characterized by a connecting position with the endless chain. That is, in the case of the illustrated example, the horizontal link 6a is fixed to the concave portion 7a of the lower division component 7A, and the lower end of the vertical link 6b connected to the horizontal link 6a is attached to the lower portion. It is set at a position where it does not protrude below the sliding edge 17 of the component 7A (see FIGS. 4 and 5). Blade 7 is in its middle position,
The center of the predetermined horizontal link 6a in the longitudinal direction is fixed, but the mounting position is such that the lowermost end of the vertical link 6b connected to the horizontal link 6a is below the sliding edge 17 of the blade 7. Is set at a position where it does not protrude (Fig. 2,
(See FIG. 4).

Here, in the illustrated example, the lowermost end of the vertical link 6b is set at the same position as the sliding edge portion 17 of the blade 7, but may be slightly upward, and a position where the blade 7 can turn at a corner. Should be fine. In this embodiment, an example is shown in which the horizontal link 6a is fixed to the blade 7, but in the present invention, the blade 7 is attached to a predetermined vertical link 6b.
May be fixed. As a result, the sliding edge 17 of the blade 7 abuts on the inner wall of the conduit 10 in a wide range, so that the posture of the blade 7 is stabilized when the transport chain is pushed and the inner edge of the conduit 10 is Is changed from a linear shape by the conventional vertical link to a planar shape by the sliding edge 17, so that the contact area is widened and the stress is dispersed, so that local wear of the inner wall of the pipeline can be prevented.

The transport chain 5 thus formed is
In the straight pipe 10, the sliding edge 1 of the blade 7
7 moves in contact with the inner wall of the conduit 10, so that even if the vertical link is in contact with the inner wall of the conduit 10, a large load is not applied and no local wear or damage occurs on the inner wall. . Further, in the Z-shaped corner portion of the conduit 10, the center of gravity of the blade 7 is set to the bottom side, so that the blade 7 is always in combination with the arc-shaped contour of the sliding edge 17. A force for returning to the lower surface of the pipeline 10 is acting, and the corner portion can be pushed in a stable posture. Therefore, even if the transported object adheres to the inner wall of the pipeline 10, the blade 7 can be efficiently scraped off without being lifted.

In the above embodiment, the case where a plate-shaped blade is used is shown. However, as long as the outer peripheral shape is the same, it is needless to say that the blade may have a bowl shape or a bucket shape with a concave center. Also, since the blade 7 has a split configuration,
The upper division component can be appropriately changed according to the type and use of the transferred object such as a synthetic resin or rubber. The blade may be used by connecting a brush or other accessories.

Further, as shown in FIG. 5, a plate 20 made of copper or a copper alloy may be integrated with the blade 7 by overlapping. That is, as shown in the drawing, the lower divided component 7A is formed into a three-divided structure in which a copper or copper alloy plate is sandwiched between steel materials, and the lower divided component 7A and the upper divided component 7B are jointly connected together by screws together, or It may be integrally formed as a three-layer structure. In addition, the copper or copper alloy plate 20 may be laminated as long as it has a multi-layer structure, and may have two or three or more layers. As a result, when the blade 7 slides on the inner wall surface of the conduit 10, the fine powder of copper or copper alloy scraped off the plate 20 of copper or copper alloy forms the other sliding edge of the steel material. A thin protective layer is formed on the sliding surface, so that the inner wall surface can be slid on the subsequent pushing of the blade 7. Thereby, the durability of the pipeline 10 can be further enhanced.

In the above embodiment, the protruding pieces are provided on one of the cutouts of the upper divided component, but the protruding pieces may be provided on both sides. Further, the edge of the protruding piece may be set short without also serving as the sliding edge. Furthermore, although the example in which the divided structure is vertically separated is shown, a large-diameter divided component may be overlapped with a small-diameter divided component to which a horizontal link is fixed. The fixing point is not limited to the embodiment, and one fixing point may be provided at the center. In other words, various design changes can be made without departing from the spirit of the present invention.

[0021]

According to the present invention, since the blades are divided, the divided components can be changed according to the application, or only the worn or damaged divided components can be replaced. Further, by interposing copper or a copper alloy, the frictional force between the pipe and the blade can be reduced. In addition, by providing the sliding edge, the lifting of the blade can be suppressed, the scraping efficiency can be improved, and the residue in the pipeline can be reduced. In addition, since the stress can be dispersed at the time of pushing the transport chain, the entire conveyor can be formed of not only metal but also synthetic resin, and can be applied to various uses such as a food field and has excellent versatility.

[Brief description of the drawings]

FIG. 1 is a perspective view of a pipe conveyor.

FIG. 2 is an exploded perspective view of a blade.

FIG. 3 is a front view of the same.

FIG. 4 is a front view showing an assembled state of the blade.

FIG. 5 is a partial side view of a transport chain having a blade with a copper or copper alloy plate interposed therebetween.

FIG. 6 is a front view illustrating the shape of a blade.

FIG. 7 is an explanatory view showing a turning state at a corner portion of a conventional blade.

FIG. 8 is a front view illustrating movement of a conventional blade.

[Description of Signs] 1 Pipe conveyor 2 Pipeline 3 Input port 4 Waste port 5 Transport chain 6 Oval link 6a Vertical link 6b Horizontal link 7 Blade 7A Lower split component 7a Recess 7B Upper split component 7b Notch 7c Projection piece 9 Drive wheel 10 Pipe line 12 Screw hole 13 Screw hole 14 Bolt 17 Sliding edge 18 Other edge 20 Plate made of copper or copper alloy

Claims (4)

[Claims] 1. A transport chain which is connected to an endless chain in which vertical links and horizontal links are alternately connected, and has divided blades whose outer periphery is formed in a substantially circular shape and circulates in a pipe conveyor. The sliding edge on the bottom side of the blade is formed in an arc shape having substantially the same diameter as the inner peripheral surface of the pipe line of the pipe conveyor in contact with the sliding edge, and the connecting position of the link chain Is set at a position where the vertical link does not protrude below the sliding edge of the blade, and the position of the center of gravity of the blade returns the sliding edge below the inner wall of the pipeline. Wherein the blade comprises a plurality of divided components that are detachably connected. 2. A blade comprising a plate made of copper or a copper alloy overlapped and connected to at least a sliding edge, and a small amount of copper powder abraded by sliding with an inner wall surface of a pipe is used for another sliding. The transport chain according to claim 1, wherein the inner surface is slidable by being attached to a sliding surface of a member constituting a moving edge portion. 3. A transport chain which is connected to an endless chain in which vertical links and horizontal links are alternately connected, and has a divided blade having a substantially circular outer periphery and circulates in a pipe conveyor. The sliding edge on the bottom side of the blade is formed in an arc shape having substantially the same diameter as the inner peripheral surface of the pipe line of the pipe conveyor in contact with the sliding edge, and the connecting position of the link chain Is set at a position where the vertical link does not protrude below the sliding edge of the blade, and the position of the center of gravity of the blade returns the sliding edge below the inner wall of the pipeline. The blade has a sliding edge and has a lateral link secured thereto, and the other of the blades is detachably attached to the divided component to form the other edge. Consisting of a split component Transport chain characterized by Rukoto. 4. A pipe conveyor which is connected to an endless chain in which vertical links and horizontal links are alternately connected, and circulates and drives an endless transport chain having blades having a substantially circular outer periphery. The sliding edge on the bottom side of the blade is formed in an arc shape having substantially the same diameter as the inner peripheral surface of the pipe line of the pipe conveyor in contact with the sliding edge, and the other edge is a pipe. It is formed in an arc shape having a diameter that can maintain a space that does not impede the degree of freedom of rotation of the blade in the hollow portion of the conduit of the conveyor. Wherein the position of the center of gravity of the blade is set at a position where the sliding edge is returned below the inner wall of the pipeline, and the blade is attached and detached. Freely Pipe conveyor characterized by comprising a plurality of divided components to be sintered.