JP2001097524A - Chain conveyor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a chain conveyor such as a curved chain conveyor provided with a chain to be turned on a horizontal surface in the condition of axial direction of pins thereof arranged in the vertical direction and capable of maintaining the height position of the carrying surface at a height position for carrying in a range of a special turning passage and retreating at a position lower than the height position for carrying in a range of the residual passage. SOLUTION: The shaft 19 of a receiver 6 is inserted into each hollow pin 13 of a hollow pin chain 5 for holding. A group of the receivers 6 is supported by a guide surface 26 at a height position for carrying in a range 9 of a carrying passage, and displaced downward for retreating in a range 10 of the residual passage.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a chain conveyor.

[0002]

2. Description of the Related Art A chain conveyor provided such that a chain is driven to rotate in a horizontal plane with the axis of a pin thereof oriented in the vertical direction is, for example, a conveyor in which a conveying path is curved in a horizontal plane. It can be used very effectively as such.

[0003]

However, in this conveyor, since the height position of the conveying surface is constant at all positions of the circuit path of the chain, the height position at which the conveyance is performed is limited in a specific circuit path range. Cannot be accommodated when it is required to be retracted below the transport height position in the other remaining path ranges.

The present invention has been made in view of such a problem, and in a chain conveyor provided such that a chain is driven to rotate in a horizontal plane with an axis of a pin of the chain extending in a vertical direction, a height position of a conveying surface is determined. The object of the present invention is to provide a chain conveyor that can hold a transport position in a specific circuit path range, and can be retracted below the transport position in other remaining path ranges. I do.

[0005]

SUMMARY OF THE INVENTION The object of the present invention is to provide a hollow pin chain which is provided so as to be driven to orbit around a pin axis in a vertical direction, a receiving body body for directly or indirectly receiving a conveyed object. A group of a plurality of or a plurality of receiving bodies which are inserted into the hollow pins of the chain so as to be able to move up and down and are held by the hollow pin chain. And the hollow pin chain orbital route is composed of a transport route range and a remaining route range. In the transport route range, the receiving body is supported at a height position where the transport is performed. Guide means for moving the receiving body downward, and displacing the receiving body below the height position at which the conveyance is performed;
Is solved by a chain conveyor characterized in that a chain conveyor is provided.

In this chain conveyor, a hollow pin chain having a hollow cylindrical pin is used as a chain, and a receiving body is in a state where its shaft is inserted into a hollow pin of the chain so as to be movable up and down. By doing so, it is configured to be held in the chain,
The height of each receiver constituting the receiver group can be changed up and down. And each receiving body is guided by the guide means.
It is supported at the height position where transport is performed in the transport path range,
In the other remaining route range, it is displaced below this transport height position, so the height position of the transport surface is
In a specific orbiting route range, the height position for carrying is held,
In the other remaining route range, it can be in a state retracted below the transport height position. That is, in a chain conveyor provided such that the chain is driven to rotate in a horizontal plane with the axial direction of the pin directed vertically.
It is possible to realize a chain conveyor in which a transport path range is provided only in a part of the chain path.

Moreover, in the above-described chain conveyor, the receiving body is configured to be inserted into and held by the shaft hole of the very strong hollow pin for connecting the link plates of the chain. The chain can be held firmly in strength.

In the above-mentioned chain conveyor, when the receiving body is dropped by its own weight and is shifted from the conveying path range to the remaining path range, the receiving body is moved from the conveying height position to a lower position. Also in the lower evacuation position,
It can be moved instantaneously, and the position on the transport exit side in the transport path range can be clarified. In addition, each receiving body can be shifted from the transport route range to the remaining route range with a simple configuration using natural force.

In the case where a shock absorbing means is provided for absorbing the impact when the receiving body falls under its own weight and shifts from the transport path range to the remaining path area, the impact path shifts from the transport path area to the remaining path area. It is possible to alleviate the repeated impact of the operation, improve the durability of the receiving body and the like, and alleviate the generation of the impact noise from the chain conveyor.

In the case where the receiver moves from the remaining path range to the transport path range by ascending the inclined surface against its own weight, the receiver rotates the chain around the chain. Can be used to move from the remaining route range to the transport route range, no special lifting drive is required, and the receiver can be raised smoothly and without applying a large load to the chain drive source. .

When the hollow pin chain is guided to curve in a horizontal plane in the range of the transport path, a non-circular drive transport path extending in a curved manner in the horizontal plane is formed. be able to.

[0012] Further, the receiving body is located within the transport path range.
When supported by the guide means via the idler roller, even if the receiving body receives a load due to the conveyed material, the frictional force between the receiving body and the guide means can be reduced, and the chain It can be driven smoothly with a small driving force.

The hollow pin chain is composed of an R-roller type chain having rollers protruding out of a link. If the chain is guided along a circulating path via the rollers, the hollow pin chain is moved horizontally and horizontally. The friction between the chain and the chain guide means due to this force can be reduced, and the chain can be smoothly driven with a small driving force. In addition, there is no need to separately provide a special device for reducing the frictional force between the chain and the chain guide means.
Since it is only necessary to use a roller-type chain, the friction can be reduced advantageously with a simplified configuration and cost.

In the hollow pin chain, a roller is attached to a lower link plate of the hollow pin chain. When the hollow pin chain is supported from below through the roller, the chain and the chain guide means are caused by a vertically downward force of the chain. Friction with the chain can be reduced, and the chain can be smoothly driven with a small driving force.

Further, when the hollow pin chain is made of a steel or stainless steel chain, the chain does not break even when a large driving force is applied to the chain, so that a long machine conveyor can be realized. Become.

[0016]

Next, embodiments of the present invention will be described with reference to the drawings.

As shown in FIG. 6, the chain conveyor 3 of the present embodiment has first and second
The first straight conveyor (1) is interposed between the straight conveyors (1) and (2), and the conveyed material is conveyed by being curved in a horizontal plane into a ４ arc curve. It is configured as a curved chain conveyor to be sent to a two straight conveyor (2).

In this curved chain conveyor (3), (4) and (4) are sprockets, and the sprockets (4) and (4) have their rotation axes oriented in the up-down direction and the first straight conveyor (1). Side and the second straight conveyor (2) side.

A chain (5) is hung on the sprockets (4) and (4) with its pin axis line extending in the vertical direction. (6) are held.

(7) and (8) are inner and outer guide devices as guide means, and these inner and outer guide devices (7).
According to (8), the chain (5) moves on the inner and outer orbital paths between the sprockets (4) and (4), and curves between the sprockets (4) and (4) into a １ ／ arc curve. It is made to go around. Since the chain (5) is arranged so that its pin axis is oriented in the up-down direction, the chain (5) can be curved around the horizontal plane in this way.

Then, the receiving body (6) moving on the outer peripheral path by the outer peripheral side guide device (7).
The row of... Receives the conveyed material from the first straight conveyor (1) and sends it to the second straight conveyor (2), while the sprockets (4) and (4) and the inner peripheral side return orbit. In the path, the rows of the receivers (6) are retracted below the height of the transfer surface so as not to hinder the transfer. That is, in the orbiting path of the chain (5), the portion (9) along the guide device (7) on the outer peripheral side is the range of the conveying route for carrying, and the other portion (10) is the remaining portion that does not carry. Route range.
It is needless to say that the chain conveyor (3) may be provided in a plurality of rows when stable conveyance is required.

The above structure will be described in further detail. As shown in FIGS. 1 to 5, the chain (5) is a hollow pin chain made of steel or stainless steel, and has an outer link plate ( The pin (13) for connecting the inner link plate (12) to the inner link plate (11) is formed of a hollow cylindrical hollow pin.

The hollow pin chain (5)
Is composed of an R roller type chain, and a roller (14) is mounted on an outer peripheral portion of a hollow pin (13) between upper and lower link plates.
However, as an R roller, a link plate (11) (1
It is provided so as to protrude outward from 2).

The link plates (11) and (12) on the lower side of the hollow pin chain (5) are provided with plate portions (15) and (15) that bend downward, and these plate portions (15) and (15). Guide roller (1
6) is provided rotatably. Note that the guide roller (16) may be omitted.

Each receiving member (6) is attached to the hollow pin chain (5) in units of one pitch, and includes a receiving member main body (18) and a shaft body (19). . By holding the receivers (6)... On the chain (5) in units of one pitch, the rows of the receivers (6)...

The receiver main body (18) receives a conveyed object and is made of, for example, a molded article such as a resin. In the receiving body (18), one edge in the front-rear direction is formed in a concave arc shape (20), and the other edge in the front-rear direction is formed in a convex arc shape (21). Accordingly, the receiver body portions (18) adjacent in the front-rear direction are in a state of being close to each other or in a contact state with each other to keep the gap therebetween small and follow the movement of the curving chain. In order to form an array of rows.

The shaft part (19) is connected to the receiving body part (1).
8) It is attached in a hanging state from the center of the lower surface. The shaft part (19) and the receiving body part (18) are integrally connected. Each of the receiving bodies (6)... Is formed by inserting the shaft portion (19) into the hollow pin 13 of the hollow pin chain (5) from above, as shown in FIGS. Combined with the chain (5), it is held on the hollow pin chain (5).

In each of the receiving members (6), idle rollers (22) and (22) are attached to both sides of the receiving member body (18) so as to protrude sideways. Receiver (6) via rollers (22) and (22)
Is supported by a guide device (7) on the outer peripheral side, and is held at a predetermined transport height position.

The guide devices (7) and (8) are installed between the sprockets (4) and (4) on the inner peripheral side and the outer peripheral side of the circuit path of the chain (5), and connect the chain (5) to the sprocket. (4) Between (4), the guide is performed so as to draw a curved curve of a 1/4 arc.

FIG. 5 (a) shows a cross section of the outer guide device (7), and FIG. 5 (b) shows a cross section of the inner guide device (8).

Each of the inner and outer guide devices (7) and (8) has a guide surface (24) which supports a guide roller (16) attached to an outer ring plate (11) below the hollow pin chain (5) from below. ) Is provided.

Further, these inner and outer guide devices (7) and (8)
The R roller (14) attached to the hollow pin 13
And left and right guide surfaces (25) and (25) for receiving and supporting the R roller (14) at one of the sides when the chain (5) curves.

The guide device (7) on the outer peripheral side includes:
A guide surface (26) is provided as guide means for supporting the left and right idler rollers (22) (22) provided on the receiver body (18) from below, and the guide surface (26) is provided.
In the state where the receiving body part (18) is supported by the above, the receiving body part (18) is separated from the chain (5) upward and floats. This range is the transport route range (9). In addition, in a circuit path other than the outer guide device (7), the main body (18) of the receiving body (6) is supported by the chain (5). A guide surface is not provided as guide means for supporting the left and right idle rollers (22) and (22) of the receiver body (18) from below. This range and the orbital area of the sprockets (4) and (4) are the remaining route range (10) where no conveyance is performed.

In the above outer peripheral side guide device (7),
As shown in FIG. 3, the front end of the chain (5) in the traveling direction, that is, from the transport path range (9) to the remaining path range (1).
0), the receiver supporting guide surface (2)
6) is interrupted in a step shape (27), whereby the receiving body (6) naturally falls by its own weight at the moment of passing the step (27) around the chain (5). Thus, the lower surface of the receiver body (18) is supported by the chain (5). For the purpose of preventing the receiver (6) from colliding with the chain (5) and emitting a sound during the drop, for example, the receiver body (18)
The shock absorbing layer (2) made of urethane rubber
8) may be provided. Note that this shock absorbing layer may be provided on the chain (5) side.

Further, in the outer peripheral side guide device (7), as shown in FIG. 4, the rear end portion of the chain (5) in the traveling direction, that is, the remaining route range (10) to the transport route range (9). In the transition section to the receiver support guide surface (26)
Is formed on a gentle climbing slope (29), and the idler roller (22) of the main body (18) of the receiving body (6).
(22) is guided by the climbing inclined surface (29), rises, and is sent to the receiver supporting guide surface (26).

The guide devices (7) and (8) on the outer peripheral side and the inner peripheral side are open at the top, and the chains (5) and the receiving members (6) to the guide devices (7) and (8) are opened. ) ...
Can be mounted and removed without disassembling the guide devices (7) and (8), so that the production, maintenance, repair and the like of the conveyor can be easily performed. This is due to the combination with the use of the R roller type chain as the chain (5).

In the above curved chain conveyor (3), as shown in FIG. 6, the first straight conveyor (1)
Are transported from the chain (5) by a guide device (7) on the outer peripheral side in a floating state.
And is sent on the curved chain conveyor (3) so as to draw a curved curve of a 1/4 arc, and is passed to the second straight conveyor (2). Since the chain (5) is arranged with its pin axis oriented in the vertical direction, the link plate can bend laterally in the horizontal plane at each pin position and draw a curved curve. In the curved chain conveyor (3), the rows of the receivers (6)... Are arranged in a revolving part of the sprockets (4) and (4) and in the return revolving path on the inner peripheral side from the conveying surface height position described above. Is also retracted downward, and does not hinder the transport in the forward direction. That is, in the curved chain conveyor (3) provided so that the chain (5) is driven to rotate in a horizontal plane with the axial direction of the pin 13 in the vertical direction, only a part of the path of the rotation of the chain (5) is provided. A chain conveyor with a transport path range (9) is thus realized.

During this transport driving, the chain (5) is guided by contacting the inner and outer guide devices (7) and (8) via the R roller (14) and the guide roller (16). It is possible to reduce the load acting on the drive source for driving the circuit (5) to rotate. Moreover, since the receiving body (6) is supported and guided by the guide device (7) on the outer peripheral side via the idler roller (22), even if the conveyed object is heavy, the receiving body (6) can be used. The friction between (6) and the outer guide device (7) is small,
The load on the drive source for driving the chain (5) around can be further reduced.

Further, since the chain (5) is made of steel or stainless steel, the chain does not break even when a large driving force is applied to the chain, and a curved chain conveyor having a long machine length can be realized.

Although the embodiments of the present invention have been described above, the present invention is not limited to these embodiments, and various changes can be made without departing from the spirit of the invention. For example, in the above embodiment, the case where the R-roller type chain (5) is used as the hollow pin chain is shown, but a so-called S-roller type hollow pin chain in which the roller fits in the plane of the link plate is used. Is also good. The receiver (6) may be configured such that the receiver main body directly supports and conveys the conveyed object, or the receiver main body may be indirectly connected to the receiver via the receiver for receiving the conveyed object. It may be configured to receive the transported object. Further, the receiving body may be configured to be supported by the guide surface in the remaining route range in addition to the transport route range. That is, the height position of the guide surface in the remaining path range is set lower than the height position of the transport path range. There is no particular limitation on the form of the receiver main body, and various forms may be employed. Further, in the above-described embodiment, the transfer of the receiver (6) from the transport path range (9) to the remaining path range (10) is configured by natural fall, but may be performed by a gentle transition by inclination. Further, in the present invention, as the guide means for supporting the receiving body (6), the guide surface (26) for supporting the receiving body (6) only from below is employed. It may be configured to guide. By doing so, it is possible to make the transition from the transport route range (9) to the remaining route range (10) and the transition from the remaining route range (10) to the transport route range (9) operationally reliable. The receiving body may be configured to be held on the hollow pin of the chain in a plurality of pitch units such as a two-pitch unit. Further, the chain of the present invention is not limited to the application to a curved chain conveyor, but the point is that the chain is provided so that the chain is driven to rotate in a horizontal plane with the axial direction of its pins being directed vertically. It is needless to say that the present invention can be widely applied to various chain conveyors that need to provide a transport path range only in a part of the circuit path of the chain.

[0041]

As described above, since the chain conveyor of the present invention is as described above, the chain is provided so that the axial direction of its pins is turned up and down and circulates in a horizontal plane. In the chain conveyor, the height position of the transfer surface must be such that the transfer position is maintained in the specific circuit path range and retracted below the transfer position in the other remaining path ranges. Can be. In other words, in a chain conveyor provided such that the chain is driven to rotate in a horizontal plane with the axial direction of the pin directed in the vertical direction, a chain conveyor is provided in which only a part of the circuit path of the chain has a transport path range. It is possible to

[Brief description of the drawings]

FIG. 1 is a perspective view showing a chain conveyor according to an embodiment, showing a receiving body, a chain, and a guide device in a separated state.

FIG. 2 is a perspective view of a state where a receiving body, a chain, and a guide device are combined.

FIG. 3 is a side view of a transition portion from a transport route range to a remaining route range.

FIG. 4 is a side view of a transition portion from a remaining route range to a transport route range.

5A shows a portion of the outer guide device, and FIG. 5B is a sectional view taken along line II of FIG. 6, and FIG. 5B shows a portion of the inner guide device. 6-II-
FIG. 2 is a sectional view taken along line II.

FIG. 6 is an overall plan view of the chain conveyor.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 3 ... Curved chain conveyor 5 ... Chain 6 ... Receiving body 7 ... Outer peripheral side guide device 9 ... Conveyance path range 10 ... Remaining path range 13 ... Pin 14 ... R roller 16 ... Guide roller 18 ... Receiving body main part 19 ... Shaft part Reference numeral 22: idle roller 24: guide surface 25: guide surface 26: guide surface (guide means) 27: step 28: shock absorbing layer 29: climbing slope

Claims (9)

[Claims] 1. A hollow pin chain arranged so as to be driven to rotate around a pin axis direction in a vertical direction, a receiver main body for directly or indirectly receiving a conveyed product, and a hanging state on the receiver main body. A group of a plurality or a large number of receiving bodies held in the hollow pin chain by being inserted into the hollow pins of the chain so as to be able to move up and down, It consists of a path range and a remaining path range.In the transport path range, the receiving body is supported at a height position for carrying, while in the remaining path range, the shaft body is lowered in the hollow pin of the chain, and the receiving body is moved. And a guide means for displacing the conveying means below a height position at which the conveyance is performed. 2. The chain conveyor according to claim 1, wherein the receiving body is dropped by its own weight and is shifted from a transport path range to a remaining path range. 3. The chain conveyor according to claim 2, further comprising: shock absorbing means for absorbing a shock when the receiving body falls by its own weight and is shifted from the transport path range to the remaining path range. 4. The receiver according to claim 1, wherein the receiver moves from the remaining path range to the transport path range by rising on an inclined surface against its own weight. The described chain conveyor. 5. The chain conveyor according to claim 1, wherein the hollow pin chain is guided so as to be curved in a horizontal plane in the transport path range. 6. The receiver according to claim 1, wherein:
The chain conveyor according to any one of claims 1 to 5, wherein the chain conveyor is supported by guide means via idle rollers. 7. The hollow pin chain according to claim 1, wherein the hollow pin chain comprises an R-roller type chain having rollers protruding out of a link, and is guided along a circulating path via the rollers. The chain conveyor according to claim 1. 8. The chain conveyor according to claim 1, wherein the hollow pin chain has a roller attached to a lower link plate thereof, and is supported from below via the roller. 9. The chain conveyor according to claim 1, wherein the hollow pin chain is made of a steel or stainless steel chain.