JP3418115B2 - Conveyor with scraping device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a conveyor having a scraping device, and more particularly, to an adhering substance adhered to a pusher member fixed to a conveying member circulating in a casing.
The present invention relates to an adhering matter scraping device that scrapes off automatically in the vicinity of a discharge port.

[0002]

2. Description of the Related Art Conventionally, in a pipe conveyor, an endless chain arranged in a pipeline is provided with a conveying means in which pushers of blades or buckets are arranged at predetermined intervals, and the conveying means is arranged in a suitable manner by a driving means. Driving the endless chain. When an object to be conveyed is thrown in from an input port provided in the middle of the pipeline, the object to be conveyed is pushed to the discharge port by the pusher and is discharged.

[0003]

There are various pipe conveyors, such as wood or metal chips, earth and sand, mineral raw materials, paper products, plastics, garbage, seafood, snow, and other granules. If these objects are not viscous, they will not easily adhere to the pusher, but if they are too viscous, they will adhere to the surface of the pusher and will not be dropped even at the discharge port. There is a problem that the conveyed objects are overlapped and adhered to each other, which not only reduces the conveying amount but also adversely affects the conveying efficiency. Japanese Patent Laid-Open No. 6-48538 discloses a device for removing a conveyed object. This device is effective for removing a conveyed object such as a metal chip entwined with a blade, but the conveyed object has a high viscosity. It is difficult to scrape off (for example, sludge soil). In addition, since the drop-off portion straddles the endless chain, the mounting position is limited. The present invention has been devised in view of the above circumstances, and its main problem is to provide a conveyor having an adhering substance scraping device for a pusher body capable of scraping off highly viscous adhering substances such as sludge soil. Especially.

[0004]

In order to solve the above-mentioned problems, the present invention is characterized in that, in the invention of claim 1, a pusher such as a blade for pushing an object to be conveyed is connected at a predetermined interval to move in the casing. When a support body provided with a scraping tool at its tip is pivotally attached to a case forming a discharge port of a conveyor in which a conveying member composed of a chain or a wire is installed, and the scraping device advances in a forward direction toward the discharge port. Is in contact with the front end side of the front wide surface of the pusher, and is arranged at a standby position where it can contact the rear wide surface of the pusher when moving in the reverse direction, and in the opposite direction to the forward direction of the pusher. The pusher body is biased and tilts the support body so as to move the scraping tool from the base end of the wide surface along the tip end against the biasing force of the scraping tool when proceeding in the forward direction, The scraping tool scrapes off the transported object adhering to the wide surface and advances past the scraping tool. In conveyor, the support, the first arm is set in a position not in contact with the pusher while being pivotally mounted via a spindle to the case of forming the discharge port, said first
The second arm is pivotally attached to the arm via an auxiliary shaft and has a scraping tool attached to the tip end side. The first arm is provided when the pusher moves in the forward direction. The first arm is constrained so as not to pivot when the pusher moves in the opposite direction, and the second arm is constrained so that it can pivot about the main shaft and return to the standby position. When the pusher moves in the forward direction, it is restrained so as to be interlocked with the first arm, and when the pusher moves in the reverse direction, only the second arm pivots about the auxiliary shaft as a fulcrum. ,
A technical measure is taken to return to the restraining position with the first arm after the pusher passes. In the invention of claim 2, the casing is composed of a pipeline which can be arranged in a meandering manner by combining pipes, and at one position of the pipeline, a discharge port attached to a drive unit of a chain having a pusher attached thereto. Has taken the technical measure of having a case that forms. Further, in the invention of claim 3, when the pusher moves in the forward direction toward the discharge port, the first arm is tiltably held at the standby position, and when the pusher moves in the reverse direction, the first arm is held. The technical measure is provided that a rotation stopping stopper for restraining the arm at the standby position is provided. In the invention of claim 4, the second arm pivotally attached to the first arm by an auxiliary shaft is attached to the auxiliary shaft at a position closer to the tip than the center of gravity of the second arm, and the second arm pivots. At that time, the technical measure is taken that it is possible to return to the original restrained position by its own weight.

As described above, in the vicinity of the outlet of the casing or the pipeline, the base end side of the wide surface of the pusher comes into contact with the scraping tool as the conveying member such as the chain rotates, and the scraping tool is pulled. Push in the direction. Since the length of the support that supports the scraping tool is constant and can be pivoted by the main shaft, the position of the scraping tool is pushed as the support tilts through the scraping tool as the pusher moves. It is possible to displace from the base end of the wide surface of the moving body to the tip side and scrape off the transported object adhering to the pushing body. If the second arm is pivotally attached to the first arm having the main shaft by the support shaft with the auxiliary shaft, the scraping tool can be tilted without obstruction and the pusher body can be passed through when the transport member is reversed. it can.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments in which a conveyor having a scraping device of the present invention is applied to a pipe conveyor will be described below with reference to the drawings. 1 to 5, the pipe conveyor can circulate an endless chain 11 having blades 14 at equal intervals in a pipeline 9 provided with an end opening serving as a discharge port on one side. It has a construction known in Japanese Patent Application Laid-Open No. 6-48538, and has a pair of open ends arranged on one side of the pipe conveyor, covers the open ends, and opens downward to form a discharge port 10A. An outlet case 10 is attached.

In the illustrated example, the lower pipe end 9A of the pipe conveyor 9 is set to the outward path and the upper pipe end 9B is set to the return path. However, in the present invention, even if the end opening of the pipe is upside down. Alternatively, a pair of end openings may be arranged side by side on the left and right. Further, according to the present invention, the conveyor is not limited to the pipe as long as the pusher is pulled by the conveyer member such as an endless chain and the pusher pushes the conveyed object to the discharge port.

Next, the scraping device 1 includes a pipe conveyor 9
The scraping tool 6 is disposed so close to the endless chain 11 in the vicinity of the discharge port 10A that the tip of the scraping tool 6 does not contact. Reference numeral 12 in the drawing is a sprocket driven by a motor (not shown). An endless chain 11 is hung on the sprocket 12 via an auxiliary guide roller 12A and circulates in the pipeline 9. At the end opening, the endless chain 11 is inverted from bottom to top and fed.

A plurality of pushers 14, 14, ... Are mounted at equal intervals on the endless chain 11, and push out an object to be conveyed (not shown) in the pipe end 9A on the outward path to the end opening. At that time, it is the scraping device 1 that scrapes off the adhered matter adhering to the pusher body 14.

In the scraping device 1, main shafts 3 provided on a supporting piece 4 are supported by bearings 2 and 2 in a case forming a discharge port of a conveyor. Support piece 4 here
Is a pair of the first arm 4A having a short length and the first arm 4A.
It is composed of a pair of second arms 4B having a long length extending in front of and behind A. The first arms 4A are provided in a pair on the left and right, and a pair of main shafts 3 projecting outward are arranged coaxially on the base ends of the first arms 4A and are integrally provided on the first arms 4A.

A pair of second arms 4B are pivotally mounted inside the first arms 4A via auxiliary shafts 5 and 5 near the tips of the pair of first arms 4A. The auxiliary shaft 5 is pivotally attached to the second arm 4B at a position closer to the front than the center of the second arm 4B. The pair of second arms 4B has a scraping tool 6 which is a blade and is integrally provided laterally between the tip ends of the pair of second arms 4B. There is.

In the above configuration, the pipeline 9
Of the endless chain 1 above the outlet case 10 of
As shown in FIG. 1, the tip of the scraping tool 6 is brought close to the lower area of the end 1 so as not to contact the endless chain 11, and the support piece 4
The scraping device 1 is arranged so as to maintain a posture in which the blade is substantially perpendicular to the endless chain 11 and is substantially parallel to the blade 14 as a standby posture.

That is, the rotation of the support piece 4 is restricted by the rotation stop stopper 7 at the standby position. The rotation stop stopper 7 is fixed to the outer peripheral wall of the outlet case 10 and an interlocking arm 7A which is integrally formed with the main shaft 3 protruding outward from the outlet case 10 and extends rearward in parallel with the first arm 4A. Also, the stopper shaft 7B is supported by the bracket so that its length can be adjusted, and can be abutted against the interlocking arm 7A.

The support piece urging means 8 has a first
The arm 4 is urged so as to return to the standby position. That is, one end of the support piece urging means 8 composed of a tension spring is hooked on the screw of the main shaft 3 and the other end is connected to the discharge port case 1.
The adjusting screw 8A is screwed to 0, and the spring force can be adjusted by moving the adjusting screw 8A back and forth.

Further, a locking means capable of interlocking with the second arm 4B is provided at an intermediate position of the first arm 4A.
That is, in the case of the illustrated example, a locking concave portion 42 having an opening facing downward in the drawing is provided at a middle position of the second arm 4B, and the first arm 4A is engageable with and disengageable from the locking concave portion 42 and inward. A protruding locking shaft 41 is provided. Although the rotation stop stopper 7 and the support piece urging means 8 are attached to the discharge port case 10 in this embodiment, they are exemplified.
The bearing portion 2 or a fixing member such as a pipe may be provided.

This scraping device 1 constructed as described above
The operation of will be described with reference to FIGS. 2 and 3. First, in FIGS. 1 and 2, while being pulled by the endless chain 11, the blade 14 advances while moving the transported object toward the end opening on the discharge port 10 side. Then, the blade advances from the position of 14A to the position of 14B, and at this position, the scraping tool 6 held in the standby posture moves to the blade 14
Contact with.

The blade 14 moves from the position 14B to the position 14C.
Blade 14 moves the scraping tool 6 to a position indicated by an imaginary line in the process of moving to the position of the first arm 4A and the second arm 4A.
The arm 4B makes an angular movement in the clockwise direction in the drawing around the main shaft 3 via the scraping tool 6. As a result, the scraping tool 6 is displaced while making contact with the wide end surface of the pusher 14 from the base end position to the tip end position.

Here, the scraping tool 6 is urged in the returning direction by the support piece urging means 8, and the blade 14 is moved to 14B.
Since the scraping tool 6 is moved from the position 61 to the position 62 while resisting the biasing force while moving from the position 14C to the position 14C, the viscous mud or the like adhering to the front surface of the blade 14 The deposit can be scraped off. This urging force can change the pressing force of the scraping tool 6 against the blade 14 by expanding and contracting the spring by adjusting the adjusting screw 8A.

When the scraping tool 62 is at the position 14C, the blade 14
When it is separated from, the scraping tool 6 rotates counterclockwise in the figure by the restoring force of the support piece urging means 8, but its return rotation is restricted by the rotation stop stopper 7, so that the scraping tool 6 is stopped at the standby position. The next blade 14 moves there, and the same operation as described above is repeated. Therefore, it is preferable to set the interval between the blades 14 adjacent to each other in the front-rear direction to be slightly longer than the length from the position 14B to the position 14C.

The case where the endless chain 11 rotates in the reverse direction will be described with reference to FIG. The blade 14 comes to a position 14D where it comes into contact with the scraping tool 6 from the rear side and collides with the scraping tool 6.
Then, when the endless chain 11 further advances in the reverse direction, the first arm 4A causes the rotation stop stopper 7 to move as described above.
Counterclockwise movement is regulated by the
Since the engaging recess 42 of the arm 4B is disengaged from the engaging shaft 41 of the first arm 4A, the arm 4B can rotate counterclockwise about the auxiliary shaft 5 and, as shown by the phantom line as the blade 14 advances. The scraping tool 6 tilts to the position 62.

While the blade moves to the position 14E, the scraping tool 6 tilts and escapes to the position 63 in the opposite direction, and the advance of the pusher is not impaired. When the scraping tool 6 is separated from the pusher body 14 at the position 63 (position 14E), the second
The arm 4B rotates in the returning direction by its own weight on the rear end side extending longer than the auxiliary shaft 5. At this time, a weight may be provided on the rear end side. Further, the locking shaft 41 engages with the locking recess 42 at the return position.

At this time, if the biasing means for biasing the scraping tool 6 in the returning direction is provided, the back surface of the pusher 14 can be scraped off. The support piece urging means for the second arm 4B may be configured, for example, in such a manner that a vortex spring is wound around the auxiliary shaft 5 and the ends are engaged with the first arm 4A and the second arm 4B.

FIG. 6 illustrates an embodiment in which the scraping tool 6 of the scraping device 1 is detachably formed. Here, the same components as those in the above-described embodiment are designated by the same reference numerals and the description thereof will be omitted.
This scraping tool 6 has engaging portions 6B,
6B is provided so as to project, and it can be detachably fixed by fixing means 6C, 6C such as screws by engaging with engaging portions 4C, 4C formed at the tip ends of the support pieces 4, 4.

Further, a brush-like scraping material 6 is provided on the base material 6A.
D is installed. The scraping material 6D can be made of an appropriate material depending on the type of the transported object. For example, plastic, rubber, metal, ceramic, mesh, brush,
A knitted fabric, a hard material covered with rubber or the like can be arbitrarily selected. By this, for example, when carrying wood chips, objects such as plastic, rubber, and brush are used, and when carrying mud, etc., by using materials of hard material such as metal and ceramic,
It is possible to scrape off adhered substances efficiently.

The supporting piece urging means 8 and 8 are formed by winding a spiral spring around the main shaft 3 and locking the ends thereof to the bearing 2 and the supporting piece 4 side. It is set. Therefore, it is normally set to the standby position, and the support piece 4 can be tilted in any direction and returned to the original position when the endless chain 11 rotates forward and backward. In addition, it goes without saying that the present invention is not limited to the above embodiment, and various design changes can be made.

[0026]

According to the present invention, when a highly viscous object is conveyed in the conveyor and even if a highly viscous deposit is attached to the pusher, the force for advancing the pusher and By the urging force of the scraping tool facing each other, it is possible to easily scrape off the adhered matter on almost the entire wide surface of the pusher. When the pusher moves in the opposite direction, the scraper can be tilted in the opposite direction so that the scraper does not get in the way, and the pusher can pass through.

[Brief description of drawings]

FIG. 1 is a side view of a scraping device.

FIG. 2 is a side view showing the action of the scraping device when the blade advances in the forward direction.

FIG. 3 is a side view showing the operation of the scraping device when the blade moves in the opposite direction.

FIG. 4 is a front view of a scraping device.

5 is a view taken along line AA in FIG.

FIG. 6 is a front view of the scraping device according to the second embodiment.

[Explanation of symbols]

1 scraping device 3 spindles 4 support pieces 4A 1st arm 4B second arm 5 auxiliary axis 6 scraping tool 7 Rotation stop stopper 7A locking arm 8 Support piece biasing means 8A adjustment screw

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) B65G 19/18 B65G 45/12-45/16

Claims (4)

(57) [Claims] 1. A case which forms a discharge port of a conveyor in which a pusher such as a blade for pushing an object to be conveyed is connected at a predetermined interval and which has a conveying member made of a chain or a wire moving in a casing is formed at a tip of the case. A support provided with a scraping tool is pivotally attached, and when the scraping tool moves in the forward direction toward the discharge port, it comes into contact with the base end side of the front wide surface of the pusher, and when moving in the reverse direction. It is placed in a standby position where it can come into contact with a wide surface behind the pusher, and is biased in the direction opposite to the forward direction of the pusher, and the pusher biases the scraping tool when it moves in the forward direction. The support is tilted so as to move the scraping tool from the base end of the wide surface along the distal end against the object, and the transported object adhering to the wide surface is scraped off by the scraping tool to cross the scraping tool. In the traveling conveyor, the support is pivotally attached to the case forming the outlet via a spindle. And a second arm that is pivotally attached to the first arm via an auxiliary shaft and has a scraper attached to the tip side thereof. When the pusher moves in the forward direction, the first arm can pivot about the main shaft as a fulcrum and is urged so as to be able to return to the standby position. When the pusher moves in the reverse direction, The first arm is constrained so as not to pivot, and the second arm is constrained to be interlockable with the first arm when the pusher moves in the forward direction, and the pusher is reversely engaged. A conveyor having a scraping device, characterized in that, when moving in the direction, only the second arm pivots about the auxiliary shaft as a fulcrum and can return to the restraining position with the first arm after the pusher passes. 2. A casing is composed of a pipeline which can be arranged in a zigzag manner by combining pipes, and at one portion of the pipeline is formed a discharge port attached to a drive unit of a chain having a pusher. Conveyor with scraping device according to claim 1, characterized in that it has a case. 3. When the pusher moves in the forward direction toward the discharge port, the first arm is tiltably held at the standby position, and when the pusher moves in the reverse direction, the first arm moves to the standby position. A conveyor having a scraping device according to claim 12, further comprising a stopper for stopping rotation for restraining the rotation of the scraper. 4. A second arm pivotally attached to the first arm by an auxiliary shaft is attached to the auxiliary shaft at a position closer to the tip than the center of gravity of the second arm, and when the second arm pivots, its own weight. The conveyor having the scraping device according to claim 1, wherein the conveyor can be returned to the original restraining position by the.