JP2013159432A - Flow conveyor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a flow conveyor for preventing generation of a residue by passing a flight on powder and granular material on a bottom plate in a conveyor case.SOLUTION: A flow conveyor 100 includes a chain 140 wrapped around a driving sprocket and a driven sprocket in the conveyor case 110, and a plurality of elastic scraper plates 150 made of an elastic material respectively installed at a predetermined interval in the chain longitudinal direction on both right and left sides of this chain, and horizontally carries powder and granular material. In the flow conveyor 100, a lower end 151 of the elastic scraper plate 150 contacts with a bottom plate 111 of the conveyor case, and a front face 152 of the elastic scraper plate 150 is constituted of a vertical face 152a vertical to the advancing direction of the elastic scraper plate and an inclined face 152b formed by chamfering under the vertical face and contacting with the powder and granular material on the bottom plate.

Description

The present invention includes a chain wound around a drive sprocket and a driven sprocket in a conveyor case, and a plurality of elastic scraper plates made of an elastic material respectively attached to the left and right sides of the chain at predetermined intervals in the longitudinal direction of the chain. The present invention relates to a flow conveyor for horizontally conveying powder particles.
Here, “powder and granular material” refers to powder and granular materials such as cereal powder, granular material, pulverized coal, food, medicine, and resin.

  Conventionally, a chain wound around a drive sprocket and a driven sprocket in a conveyor case, a plurality of scrapers made of steel respectively attached to the left and right sides of the chain at predetermined intervals in the longitudinal direction of the chain, and the scrapers 2. Description of the Related Art There is known a flow conveyor that includes an elastic scraper plate made of an elastic material in a part thereof and horizontally conveys powder particles (for example, Patent Document 1).

As such a conventional flow conveyor, for example, there is a flow conveyor 500 shown in FIGS. 7 (A) and 7 (B).
7A is a side view of the inside of the flow conveyor 500 showing a state in which the scraper 560 is moving, and FIG. 7B is a scraper 560 from the state of FIG. 7A. It is a side view which shows the state which advanced to the advancing direction.

  A conventional flow conveyor 500 includes a chain 540 wound around a drive sprocket and a driven sprocket in a conveyor case 510 and a plurality of scrapers made of steel respectively attached to the left and right sides of the chain 540 at predetermined intervals in the chain longitudinal direction. Plate 560.

The scraper plate 560 is attached to an attachment 545 provided on the chain 540 with bolts and nuts in a posture in which the surface of the scraper plate 560 faces in the traveling direction of the scraper plate 560, and the granular material on the bottom plate 511 of the conveyor case 510. It was provided to transport M.
Note that the elastic scraper plate (not shown) for the purpose of scraping the residue M1 of the granular material M on the bottom plate 511 of the conveyor case 510 is similar to the scraper plate 560 so that the surface of the elastic scraper plate is directed in the traveling direction of the scraper plate 560. It was attached to the front surface of some scrapers 560 in the posture.

  In addition, a chain wound around the drive sprocket and the driven sprocket in the conveyor case, and a plurality of steel scrapers attached to the left and right sides of the chain at predetermined intervals in the longitudinal direction of the chain, respectively. The lower end of some scrapers of the scraper is separated from the bottom plate in the conveyor case, and the front of the scraper pushes the powder in the direction of travel. The lower end of the remaining scraping plate is in contact with the bottom plate in the conveyor case, and the front surface of the scraping plate is directed in the traveling direction and pushed downward as described above. 2. Description of the Related Art A flow conveyor that conveys powder particles on a bottom plate in a conveyor case while receiving pressure is known (for example, Patent Document 2).

JP 2008-143631 A JP 2009-143720 A

  However, the conventional flow conveyor 500 described above has a structure in which the entire front surface of the scraper plate 560 and the elastic scraper plate (not shown) is flat, and the entire front surface is directed in the direction of travel of the scraper plate 560. As shown in FIG. 7B, when the scraping plate 560 advances from the state of FIG. 7A in the traveling direction, it rides on the powder M on the bottom plate 511 in the conveyor case 510, and the powder M There was a problem that the residue M1 of the granular material M was generated through the top.

  In the conventional flow conveyor described in Patent Document 2, the front of some scrapers faces upward in the traveling direction, but the lower ends of some scrapers are separated from the bottom plate in the conveyor case. Actually transporting the powder on the bottom plate is the remaining scraper that comes in contact with the bottom plate in the conveyor case and whose front face is in the direction of travel, and the entire front surface of this remaining scraper is Since the entire front surface is oriented in the direction of travel of the scraper, if the downward pressing force described above is not sufficient, the scraper is in the direction of travel as shown in FIG. When proceeding to the above, there is a problem that the powder particles get on the powder particles on the bottom plate in the conveyor case, pass over the powder particles, and the residue of the powder particles is generated.

  Therefore, the present invention solves the problems of the prior art as described above, that is, the object of the present invention is to make a residue as a result of the flight passing over the granular material on the bottom plate in the conveyor case. It is providing the flow conveyor which prevents that generate | occur | produces.

  The invention according to claim 1 is a plurality of elastic materials comprising a chain wound around a drive sprocket and a driven sprocket in a conveyor case and elastic materials attached to the left and right sides of the chain at predetermined intervals in the longitudinal direction of the chain. A flow conveyor having a scraper plate for horizontally conveying a granular material, a lower end of the elastic scraper plate is in contact with a bottom plate of the conveyor case, and a front surface of the elastic scraper plate is a traveling direction of the elastic scraper plate The above-mentioned problem is solved by comprising a vertical surface perpendicular to the vertical surface and an inclined surface formed by chamfering under the vertical surface and in contact with the powder on the bottom plate.

  The invention according to claim 2 includes a chain wound around the drive sprocket and the driven sprocket in the conveyor case, a plurality of scrapers attached to the left and right sides of the chain at predetermined intervals in the longitudinal direction of the chain, and the plurality of scrapers. An elastic scraper plate made of an elastic material attached to the front side in at least one of the scraping plates of the scraper plate, and horizontally conveying the granular material, the lower end of the elastic scraper plate being a bottom plate of the conveyor case And the front surface of the elastic scraper plate is a vertical surface perpendicular to the direction of travel of the scraping plate, and a slope that is formed by chamfering under the vertical surface and is in contact with the granular material on the bottom plate By solving this problem, the above-mentioned problems are solved.

  In the invention according to claim 3, in addition to the configuration of the flow conveyor according to claim 1 or 2, the length from the upper end of the inclined surface to the bottom plate of the conveyor case is the powder on the bottom plate. By establishing a relationship longer than the particle size of the granules, the above-described problem is further solved.

  The invention according to claim 4 is the size of the space closed by the inclined surface, the bottom plate, and the extension of the vertical surface in addition to the configuration of the flow conveyor according to any one of claims 1 to 3. However, the above-described problem is further solved by establishing a relationship larger than the size of the powder particles on the bottom plate.

The invention according to claim 1 is a plurality of elastic materials comprising a chain wound around a drive sprocket and a driven sprocket in a conveyor case, and elastic materials attached to the left and right sides of the chain at predetermined intervals in the longitudinal direction of the chain. In a flow conveyor that horizontally conveys granular materials with a scraper plate, the lower end of the elastic scraper plate contacts the bottom plate of the conveyor case, and the front surface of the elastic scraper plate is in the direction of travel of the elastic scraper plate. It consists of a vertical vertical surface and an inclined surface formed by chamfering under the vertical surface and in contact with the granular material on the bottom plate, so that the granular material is pushed forward in the traveling direction by the inclined surface. This is because the powder is collected by being pushed between the inclined surface and the bottom plate. While moving the traveling direction front side can be cleaned residue on the bottom plate.
That is, it is possible to prevent the elastic scraper plate from passing over the granular material (residue) on the bottom plate.

At this time, since the elastic scraper plate is elastically deformed moderately, it is possible to convey the granular material without crushing it by setting the magnitude of the force for pushing the granular material downward.
In addition, when the powder particles stacked upward are in contact with the inclined surface, a plurality of powder particles are collected and collected between the inclined surface and the bottom plate. The residue on the bottom plate can be cleaned while moving forward in the direction.
Furthermore, even if a gap is generated between the lower end of the elastic scraper plate and the bottom plate, a plurality of powder particles in contact with the inclined surface are in contact with the bottom plate in a lump. Smaller residues can be cleaned.

The invention according to claim 2 includes a chain wound around the drive sprocket and the driven sprocket in the conveyor case, a plurality of scrapers attached to the left and right sides of the chain at predetermined intervals in the longitudinal direction of the chain, and the plurality of scrapers. The flow scraper plate is provided with an elastic scraper plate made of an elastic material attached to the front side of at least one of the scraping plates, and the lower end of the elastic scraper plate is in contact with the bottom plate of the conveyor case. In addition, the front surface of the elastic scraper plate is composed of a vertical surface perpendicular to the advancing direction of the scraper plate, and an inclined surface formed by chamfering under the vertical surface and in contact with the granular material on the bottom plate. As a result, the granular material is pushed forward in the traveling direction by the inclined surface and is also pushed downward so that the granular material is brought into contact with the inclined surface and the bottom plate. Since then accumulated in the as Kakaekoma, it is possible to clean the residue on the bottom plate while the accumulated granular material is moved in the direction of travel forward.
That is, it is possible to prevent the elastic scraper plate from passing over the granular material (residue) on the bottom plate.

At this time, since the elastic scraper plate is elastically deformed moderately, it is possible to convey the granular material without crushing it by setting the magnitude of the force for pushing the granular material downward.
In addition, when the powder particles stacked upward are in contact with the inclined surface, a plurality of powder particles are collected and collected between the inclined surface and the bottom plate. The residue on the bottom plate can be cleaned while moving forward in the direction.
Furthermore, even if a gap is generated between the lower end of the elastic scraper plate and the bottom plate, a plurality of powder particles that are in contact with the inclined surface come into contact with the bottom plate in a lump, and thus smaller than this gap. Residues can also be cleaned.

  In addition to the effect of the flow conveyor according to the first or second aspect, the flow conveyor according to the third aspect has a length from the upper end of the inclined surface to the bottom plate of the conveyor case. Since the relationship longer than the particle size of the body is established, the powder particles are more reliably retained between the inclined surface and the bottom plate, so that the cleaning effect can be further enhanced.

  The flow conveyor of the invention according to claim 4 is a space closed by an inclined surface, a bottom plate, and an extension line of a vertical surface in addition to the effect exhibited by the flow conveyor according to any one of claims 1 to 3. The elastic scraper plate is configured so that the granular material on the bottom plate is held in the space between the inclined surface and the bottom plate because the relationship between the size of the powder and the granular material on the bottom plate is established. Since it moves together, the held granular material can more reliably clean the residue on the bottom plate.

The schematic side view of the flow conveyor of 1st Example of this invention. The top view and side view of a chain which attached the elastic scraper board of 1st Example of this invention. The front view of the elastic scraper board of 1st Example of this invention. The perspective view of the elastic scraper board of 1st Example of this invention. The side view which shows the effect of the elastic scraper board of 1st Example of this invention. The top view and side view of a chain which attached the elastic scraper board of 2nd Example of this invention. The side view which shows the scraper of the flow conveyor of a prior art.

  The present invention includes a chain wound around a drive sprocket and a driven sprocket in a conveyor case, and a plurality of elastic scraper plates made of an elastic material respectively attached to the left and right sides of the chain at predetermined intervals in the longitudinal direction of the chain. In the flow conveyor that horizontally conveys the granular material, the lower end of the elastic scraper plate is in contact with the bottom plate of the conveyor case, and the front surface of the elastic scraper plate is perpendicular to the traveling direction of the elastic scraper plate. The slanted surface is formed by chamfering below the vertical surface and is in contact with the powder particles on the bottom plate, so that the powder particles are pushed forward by the slant surface and also pushed downward. As long as the powder is collected so as to be held between the inclined surface and the bottom plate, its specific embodiment is But it may be any of those.

For example, the elastic scraper plate only needs to be formed of an elastic material, and resin or the like may be used.
Moreover, an elastic scraper plate may be used in combination with a steel scraper, or only an elastic scraper plate may be used without using a steel scraper.
Furthermore, the location where the elastic scraper plate is attached may be either the inner plate or the outer plate of the chain.
In addition, the “formed by chamfering” may be formed by actually cutting the corner or may be formed by cutting the corner from the beginning, that is, the corner may be cut as a result. It is sufficient that the inclined surface is formed in a simple shape.
Further, the conveying direction of the granular material may be substantially horizontal, and the vertical surface of the front surface of the elastic scraper plate may be substantially perpendicular to the traveling direction of the elastic scraper plate.

Below, the flow conveyor 100 which is 1st Example of this invention is demonstrated based on FIG. 1 thru | or FIG.
Here, FIG. 1 is a schematic side view of the flow conveyor 100 of the first embodiment of the present invention, and FIG. 2A is a view of the chain 140 to which the elastic scraper plate 150 of the first embodiment of the present invention is attached. FIG. 2 (B) is a side view of the chain 140 to which the elastic scraper plate 150 of the first embodiment of the present invention is attached, and FIGS. 3 (A) to 3 (C) are FIGS. FIG. 4 is a front view of the elastic scraper plate 150 of the first embodiment of the present invention viewed from the position of the XX ′ cross section of FIG. 4, and FIG. 4 is a perspective view of the elastic scraper plate 150 of the first embodiment of the present invention; FIGS. 5A and 5B are side views showing the effect of the elastic scraper plate 150 of the first embodiment of the present invention.

  Among these, FIG. 3 (A) is a basic type of elastic scraper plate 150a shown in FIGS. 2 (A) and 2 (B), and FIG. 3 (B) is the same as FIG. 2 (A) and FIG. 3B is an elastic scraper plate 150b shown in FIGS. 2A and 2B. FIG.

  As shown in FIGS. 1 to 5, the flow conveyor 100 according to the first embodiment of the present invention includes a chain 140 wound around a drive sprocket 120 and a driven sprocket 130 in a conveyor case 110, and left and right sides of the chain 140. A plurality of elastic scraper plates 150 made of an elastic material attached at predetermined intervals in the longitudinal direction of the chain are provided so as to horizontally convey the granular material M.

Of these, the drive sprocket 120 is provided to be driven by the power of the motor.
On the other hand, the driven sprocket 130 is provided so as to be adjustable by a known take-up mechanism 180 in the chain tension direction.
The take-up mechanism 180 tends to decrease the tension of the chain 140 when the chain 140 is gradually extended by use. The take-up mechanism 180 moves the shaft portion of the driven sprocket 130 on the side where the tension of the chain 140 is increased, thereby predetermining the tension. It is a mechanism to keep the size of the.

In addition, a loading port 112 is provided on one end side of the long conveyor case 110, and a discharge port 113 is provided on the other end side.
When the drive sprocket 120 is driven, the elastic scraper plate 150 as a flight attached to the chain 140 is discharged while scraping the granular material M introduced from the insertion port 112 on the bottom plate 111 of the conveyor case 110. By conveying to the outlet 113, the granular material M is discharged from the outlet 113.

  The chain 140 and the elastic scraper plate 150 moved to the discharge port 113 side on the lower bottom plate 111 in the conveyor case 110 are reversed and supported by the upper rail support member 171 in the conveyor case 110. It moves to the inlet 112 side and is reversed again to move on the bottom plate 111 in the conveyor case 110 to the outlet 113 side.

  The specific structure of the chain 140 will be described. As shown in FIGS. 2 to 4, the chain 140 includes a pair of left and right inner plates 141 and a bushing in which a bushing end is press-fitted into a bushing hole of the inner plate 141. (Not shown), a pair of left and right outer plates 143 respectively disposed on both outer sides of the pair of left and right inner plates 141, and a bushing that is rotatably inserted into the bushes and press-fits the pin ends into the pin holes of the outer plate 143 And a roller 142 that is disposed between the pair of left and right inner plates 141 and is rotatably fitted on the outer periphery of the bush.

The elastic scraper plate 150 is pressed by a pressing plate 153 and attached by bolts B and nuts N to attachments 145 provided on the left and right sides of the inner plate 141 as an example.
As shown in FIG. 2 and FIG. 3, there are three types of elastic scraper plates 150a, 150b, 150c (150) as an example, and an elastic scraper in which many basic types of elastic scraper plates 150a are arranged. A plate 150b and an elastic scraper plate 150c are disposed at a predetermined interval.

As shown in FIG. 3A, a gap is provided between the elastic scraper plate 150a and the side wall plates 114a and 114b (114) in the conveyor case 110.
As shown in FIG. 3B, the elastic scraper plate 150b is formed so as to fit the corner formed by the side wall plate 114a and the bottom plate 111 in the conveyor case 110.
Similarly, as shown in FIG. 3C, the elastic scraper plate 150c is formed so as to fit the corner formed by the side wall plate 114b and the bottom plate 111 in the conveyor case 110.
Accordingly, it is possible to prevent the residue M1 from accumulating at corners formed by the side wall plates 114a and 114b (114) and the bottom plate 111 in the conveyor case 110.

Further, the lower end 151 of the elastic scraper plate 150 is in contact with the bottom plate 111 of the conveyor case 110, and the front surface 152 of the elastic scraper plate 150 is perpendicular to the traveling direction of the elastic scraper plate 150 and the vertical surface 152a. It comprises an inclined surface 152b formed by chamfering under the vertical surface 152a and in contact with the powder M on the bottom plate 111.
As a result, as shown in FIGS. 5 (A) and 5 (B), the granular material M is pushed forward by the inclined surface 152b and also pushed downward, so that the granular material M becomes inclined with the inclined surface 152b. It accumulates so as to be held between the bottom plate 111.

Further, when the powder particles M stacked upward contact with the inclined surface 152b, the plurality of powder particles M are gathered together and accumulated between the inclined surface 152b and the bottom plate 111.
Further, even if a gap is generated between the lower end 151 of the elastic scraper plate 150 and the bottom plate 111, the plurality of powder particles M that are in contact with the inclined surface 152b come into contact with the bottom plate 111 in a lump. .

Further, a relationship is established in which the length L from the upper end of the inclined surface 152 b to the bottom plate 111 of the conveyor case 110 is longer than the particle size R of the powder M on the bottom plate 111.
Thereby, the granular material M accumulates so as to be more securely held between the inclined surface 152b and the bottom plate 111.
Furthermore, a relationship is established in which the size A1 of the space closed by the inclined surface 152b, the bottom plate 111, and the extension line E of the vertical surface 152a is larger than the size A2 of the granular material M on the bottom plate 111.
Thereby, the granular material M on the bottom plate 111 moves together with the elastic scraper plate 150 so as to be held in the space between the inclined surface 152b and the bottom plate 111.

More specifically, as shown in FIG. 5A, when the elastic scraper plate 150 advances in the traveling direction, the granular material M on the bottom plate 111 comes into contact with the inclined surface 152b of the elastic scraper plate 150.
At this time, the powder M is pushed forward by the inclined surface 152b and pushed downward, and the elastic scraper plate 150 is elastically deformed moderately so that the powder M slightly bites into the inclined surface 152b. As a result, the granular material M accumulates so as to be held between the inclined surface 152b and the bottom plate 111.
That is, the granular material M is accumulated so as to be held between the inclined surface 152b and the bottom plate 111 without being crushed.

Then, as shown in FIG. 5B, when the elastic scraper plate 150 further advances from the position shown in FIG. 5A in the traveling direction, the elastic scraper plate 150 is held between the inclined surface 152b and the bottom plate 111. The granular material M scrapes and conveys the residue M1 of the granular material M on the bottom plate 111.
At this time, since the plurality of powder particles M accumulated so as to be held between the inclined surface 152b and the bottom plate 111 are made into one lump, the residue M1 of the powder particles M on the bottom plate 111 is scraped cleanly.
Further, even if a gap is generated between the lower end 151 of the elastic scraper plate 150 and the bottom plate 111, the plurality of powder particles M that are in contact with the inclined surface 152b are brought into contact with the bottom plate 111 as a lump. Therefore, the residue M1 of the powder M on the bottom plate 111 is scraped off cleanly.
In addition, since the angle of the inclined surface 152b hardly changes, the position of the granular material M accumulated so as to be held between the inclined surface 152b and the bottom plate 111 is within the space between the inclined surface 152b and the bottom plate 111. Stabilize.

  In the flow conveyor 100 according to the first embodiment thus obtained, the lower end 151 of the elastic scraper plate 150 is in contact with the bottom plate 111 of the conveyor case 110, and the front surface 152 of the elastic scraper plate 150 is the elastic scraper. This accumulation is made up of a vertical surface 152a perpendicular to the traveling direction of the plate 150 and an inclined surface 152b formed by chamfering under the vertical surface 152a and in contact with the powder M on the bottom plate 111. In addition to cleaning the residue M1 on the bottom plate 111 while the powder M is moving forward in the traveling direction, the powder M is set with an appropriate amount of force to push the powder M downward. In addition, a plurality of accumulated powder particles M move forward in the direction of travel while the residue M1 on the bottom plate 111 is removed. Can be leaning, even if a gap is formed between the lower end 151 and the bottom plate 111 of the elastic scraper plate 150 has occurred, it is possible to clean also the gap smaller residue M1.

Further, since the length L from the upper end of the inclined surface 152b to the bottom plate 111 of the conveyor case 110 is longer than the particle size R of the powder M on the bottom plate 111, the cleaning effect is further enhanced. Can do.
Furthermore, since the size A1 of the space closed by the inclined surface 152b, the bottom plate 111, and the extension line E of the vertical surface 152a is larger than the size A2 of the powder M on the bottom plate 111, a relationship is established. The effect is enormous, for example, the held powder M can clean the residue M1 on the bottom plate 111 more reliably.

Then, the flow conveyor 200 which is 2nd Example of this invention is demonstrated based on FIG.
Here, FIG. 6 (A) is a plan view of the chain 240 to which the elastic scraper plate 250 of the second embodiment of the present invention is attached, and FIG. 6 (B) is an elastic scraper of the second embodiment of the present invention. It is a side view of the chain 240 which attached the board 250. FIG.

The chain 240 to which the elastic scraper plate 250 of the flow conveyor 200 of the second embodiment is attached is an arrangement of the elastic scraper plate 150 of the chain 140 to which the elastic scraper plate 150 of the flow conveyor 100 of the first embodiment is attached. The arrangement is combined with the scraper plate 260, and many elements are common to the chain 140 to which the elastic scraper plate 150 of the flow conveyor 100 of the first embodiment is attached. Therefore, detailed descriptions of common items are omitted. In addition, it is assumed that only the codes in the 200 series are shared by the last two digits.
The driving sprocket and the driven sprocket of the second embodiment (not shown) are the same as the driving sprocket 120 and the driven sprocket 130 of the first embodiment, and therefore the same reference numerals are used.

  As shown in FIGS. 6A and 6B, the flow conveyor 200 according to the second embodiment of the present invention includes a chain 240 wound around the drive sprocket 120 and the driven sprocket 130 in the conveyor case 210, and this chain. A plurality of scrapers 260 attached to the left and right sides of 240 at predetermined intervals in the longitudinal direction of the chain, and an elastic scraper plate 250 made of an elastic material attached to the front side of at least one of the plurality of scrapers 260 in the traveling direction. It is comprised so that the granular material M may be conveyed horizontally.

  The chain 240 includes a pair of left and right inner plates 241, a bush (not shown) in which a bushing end is press-fitted into the bushing hole of the inner plate 241, and left and right sides disposed on both outer sides of the pair of left and right inner plates 241. A pair of outer plates 243, a pin 244 that is rotatably inserted into the bushing and press-fits a pin end into a pin hole of the outer plate 243, and a pair of left and right inner plates 241 are disposed between the bushing and the bushing. And a roller 242 that freely fits on the outer periphery.

  As an example, the steel scraper 260 is pressed by the pressing plate 253 and attached by bolts B and nuts N to the attachments 245 provided on the left and right sides of the inner plate 241, and the elastic scraper plate 250 is 260 and at least one of the scraping plates 260 are attached to the front side in the traveling direction.

Further, the lower end 251 of the elastic scraper plate 250 is in contact with the bottom plate 211 of the conveyor case 210, and the front surface 252 of the elastic scraper plate 250 is perpendicular to the traveling direction of the elastic scraper plate 250 and the vertical surface 252a. The inclined surface 252b is formed by chamfering under the vertical surface 252a and is in contact with the powder M on the bottom plate 211.
As a result, the granular material M is pushed forward by the inclined surface 252b and also pushed downward, and the granular material M accumulates between the inclined surface 252b and the bottom plate 211.

Furthermore, when the granular material M piled up contacts with the inclined surface 252b, the several granular material M collects as a lump and accumulates between the inclined surface 252b and the baseplate 211. FIG.
Further, even if a gap is generated between the lower end 251 and the bottom plate 211 of the elastic scraper plate 250, the plurality of powder particles M that are in contact with the inclined surface 252b come into contact with the bottom plate 211 in a lump. .
The thickness of the elastic scraper plate 250 is preferably larger than the thickness of the steel scraper plate 260 and more than twice the particle size R of the granular material M.
This is because the strength of the elastic scraper plate 250 can be increased and the residue M1 can be scraped cleanly.

  In the flow conveyor 200 according to the second embodiment thus obtained, the lower end 251 of the elastic scraper plate 250 is in contact with the bottom plate 211 of the conveyor case 210, and the front surface 252 of the elastic scraper plate 250 is the scraping plate 260. The accumulated powder is composed of a vertical surface 252a that is perpendicular to the traveling direction of the material and an inclined surface 252b that is formed by chamfering below the vertical surface 252a and that contacts the powder M on the bottom plate 211. While the granular material M moves forward in the traveling direction, the residue M1 on the bottom plate 211 can be cleaned, and the granular material M is crushed with an appropriate amount of force to push the granular material M downward. In addition, the residue M1 on the bottom plate 211 is cleaned while the collected plurality of powder particles M move forward in the traveling direction. Even if a gap is generated between the lower end 251 and the bottom plate 211 of the elastic scraper plate 250, the residual M1 smaller than the gap can be cleaned, and the effect is enormous. is there.

100, 200, 500 ... Flow conveyors 110, 210, 510 ... Conveyor cases 111, 211, 511 ... Bottom plate 112 ... Input port 113 ... Discharge port 114 ... Side wall plate 120 ... Drive sprocket 130 ... driven sprockets 140, 240, 540 ... chain 141, 241 ... inner plate 142, 242 ... rollers 143, 243 ... outer plates 144, 244 ... pins 145, 245, 545 ... attachments 150, 250 ... elastic scraper plates 151, 251 ... lower end 152, 252 ... front face 152a, 252a ... vertical faces 152b, 252b ... inclined faces 153, 253 .. Holding plate
260, 560 ... (steel) scraper 170 ... rail material 171 ... rail support member 180 ... take-up mechanism B ... bolt M ... powder M1 ... ( Residue N of powder (Nut) Nut

Claims (4)

A granular material comprising a chain wound around a drive sprocket and a driven sprocket in a conveyor case, and a plurality of elastic scraper plates made of an elastic material respectively attached to the left and right sides of the chain at predetermined intervals in the longitudinal direction of the chain. In the flow conveyor that horizontally conveys
While the lower end of the elastic scraper plate is in contact with the bottom plate of the conveyor case,
The front surface of the elastic scraper plate is composed of a vertical surface perpendicular to the traveling direction of the elastic scraper plate, and an inclined surface formed by chamfering under the vertical surface and in contact with the granular material on the bottom plate. A flow conveyor characterized by that. At least one of the chain wound around the drive sprocket and the driven sprocket in the conveyor case, a plurality of scrapers attached to the left and right sides of the chain at predetermined intervals in the longitudinal direction of the chain, and at least one of the plurality of scrapers In the flow conveyor that horizontally conveys the granular material with an elastic scraper plate made of an elastic material attached to the front side in the traveling direction,
While the lower end of the elastic scraper plate is in contact with the bottom plate of the conveyor case,
The front surface of the elastic scraper plate is composed of a vertical surface perpendicular to the advancing direction of the scraper plate, and an inclined surface formed by chamfering under the vertical surface and in contact with the granular material on the bottom plate. Flow conveyor characterized by.   The length from the upper end of the inclined surface to the bottom plate of the conveyor case is longer than the particle size of the granular material on the bottom plate, and the relationship is established. Flow conveyor.   The relationship between the size of the space closed by the inclined surface, the bottom plate, and the extended line of the vertical surface is larger than the size of the granular material on the bottom plate. The flow conveyor according to any one of the above.

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