JP2008019055A - Case conveyor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To carry all the powder and granular materials to be conveyed by a case conveyor out of a conveyance case. <P>SOLUTION: An endless chain 2 having an attachment 8 for sweeping up powder and granular materials is provided with a scraping plate 7 and a scraping scraper 13. The scraping plate 7 is like a plate, brings its lower fringe into contact with a bottom plate 10 of the conveyance case 1, and brings its outer end fringe into contact with inner faces of both side walls 11 of the conveyance case 1 to convey the powder and granular materials left after sweeping-up by the attachment 8 while sweeping up the left powder and granular materials. The scraping scraper 13 has a brush 15, which is inserted into a clearance (d) formed between the side walls 11 and the bottom plate 10 by curved faces of the side walls 11 of the conveyance case 1 to scrape up the powder and granular materials intruded into the clearance (d) onto the bottom plate 10. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a case conveyor that mainly transports powder particles such as grains.

  Case conveyors run a chain in a casing with a square cross section, and use the frictional force between the object to be transported and the scraping plate attached to the chain to make the powder on the transport surface as if it were a fluid. Or it is a conveyor which conveys a granular material.

  According to the case conveyor, not only horizontal conveyance but also vertical or inclined conveyance is possible, and it is mainly used for conveyance of edible cereals such as corn, milo, soybean, rapeseed, barley and cereals for animal feed. . Case conveyors are considered to be the most suitable conveyors for transporting granular materials, and are widely used in various directions. However, according to Non-Patent Document 1, depending on the properties of the granular materials to be transported, the transport efficiency can be improved. Not only are there differences, but there are also cases where unexpected obstacles occur, so it is said that careful consideration is necessary when designing.

  For example, in Patent Document 1, since the case conveyor has a structure in which a chain with a scraping plate attached in the transport case is run, the scraping plate rubs against the transport case, which causes severe noise. As indicated, a resin rail is provided so that the scraping plate and the transport case do not touch each other, and a clearance is provided between the scraping plate and the transport case to reduce scraping resistance and prevent noise generation. It is stated that it has improved.

  However, the problem of the case conveyor is not only the generation of noise as pointed out by Patent Document 1. For example, there is a problem that the granular material that has entered the gap between the case and the attachment remains in the case as it is without being scraped off by the attachment. Usually, as described in Patent Documents 2 and 3 in the belt conveyor, the scraper or brush is brought into contact with the belt surface to scrape off or adhere to the belt surface. The remaining powder must be removed manually by the operator after the work is completed, but it is very troublesome for the case conveyor to remove the powder that has entered the gap between the bottom plate of the case and the side wall. It is.

Japanese Patent Publication No. 10-329929 Patent Publication No. 2003-312827 Japanese Utility Model Publication No. 5-40212 Hitachi Metals, Ltd. Hitachi Case Conveyor Catalog

  The problem to be solved is that when the granular material transported in the case conveyor remains in the case without being swept out to the attachment or scraping plate, it is troublesome to remove the residue. It is.

  In the present invention, in order not to leave a granular material that is a conveyed product in the conveying case, a brush for scraping is provided on both sides of the conveying case separately from the attachment and the scraping plate toward the side wall of the conveying case. Is the most important feature.

  According to the case conveyor of the present invention, the granular material carried into the case conveyor is transported inside the transport case while being swept by the attachment and the scraping plate by the drive of the endless chain, and at the same time, the scrap attached to the attachment. While the scraping brush moves integrally with the scraping plate in the same direction, the gap formed between the scraping plate and the inner wall of the case, particularly between the joint between the inner wall of the case and the inner bottom of the bottom plate, is wiped off. In order to scrape the granular material that has entered inside from the gap and sweep it into the range of the scraping plate, the granular material is between the scraping plate and the inner wall of the case, particularly between the joint between the inner wall and the bottom plate of the case. This eliminates the need to remove powder particles remaining in the transfer case after the transfer operation is completed, keeps the transfer case clean, and leaves the residue remaining in the transfer case. Things never mixed into the next conveyed.

  The object of the present invention is to leave the residue of the powder particles in the transport case by sticking the scraper brush over the attachment from the outer end in the extending direction.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows the configuration of a case conveyor to which the present invention is applied. The case conveyor incorporates an endless chain 2 in the transport case 1. The transfer case 1 has an input port 3 opened on the upper surface of one end in the longitudinal direction and a discharge port 4 opened on the lower surface of the other end. The endless chain 2 is a steel chain or a forged chain, and spans between sprockets 5 and 5 at both ends in the longitudinal direction of the transport case 1 and is shown in FIG. 3 along rails 6 installed in the transport case 1. Thus, the upper stroke and the lower stroke are circulated and moved. In FIG. 2, the endless chain 2 has an attachment 8 projecting to both sides at a critical point, and a scraping plate 7 is further attached to the specific attachment 8.

The endless chain 2 is installed in a space surrounded by the bottom plate 10, the side walls 11, and the upper lid 12 of the transport case 1. As shown in FIG. 3, the granular material P introduced into the transfer case 1 from the charging port 3 falls on the bottom plate 10, and the granular material P deposited on the bottom plate 10 is shown in FIGS. Thus, continuous feed is given toward the discharge port 4 while being scraped off by the attachment 8 and the scraping plate 7 in the feed direction of the endless chain 2.
The attachment 8 is a metal plate that is thrown into the inlet 3 and is swept out from the outlet 4 while sweeping most of the powder P deposited on the bottom plate 10. Since a gap is formed between the side wall 11 and the attachment 8, a sweeping residue is generated on the bottom plate 10 only by sweeping with the attachment 8.

  The scraping plate 7 is a felt or synthetic resin plate. As shown in FIG. 3, a specific attachment 8 projecting at right angles to both sides of the endless chain 2 is selected and applied to the plate surface. The outer surface of the plate 7 is held by the holding plate 9, the lower edge and the outer edge of the scraping plate 7 protrude from the attachment 8 and the holding plate 9, and the lower edge of the scraping plate 7 contacts the bottom plate 10 of the transport case 1. The outer end edge is bolted so that it can be attached to and detached from the attachment 8 by adjusting its protruding length so as to be in contact with the inner surface of the side wall 10 of the transport case 1. The scraping plate 7 transports the powder particles P stacked on the bottom plate 10 including the powder particles left on the bottom plate 10 left by the attachment 8 toward the discharge port 4 while sweeping.

  As shown in FIG. 3, tightening seats 11a and 11b are formed at the upper and lower end edges of the both side walls 11 and 11 of the transport case 1 in the horizontal direction toward the outer side. The upper lid 12 is overlaid, and the lower edge tightening seat 11b is overlaid on the bottom plate 10 and fixed with bolts and nuts.

  A gap is formed between the upper lid 12 and both side walls 11 and between the bottom plate 10 and both side walls 11 by a curved surface formed between the fastening seat 11 a or 11 b and the side wall 11. The gap is formed above and below the side wall, but the problem is the gap formed between the bottom plate 10 and the side walls 11. The granular material P that has entered the gap formed between the bottom plate 10 and both side walls 11 cannot be swept away even by the scraping plate 7.

  Therefore, in the present invention, a scraping scraper 13 is attached to the attachment 8 (see FIGS. 4 and 5). As shown in FIGS. 6A and 6B, the scraping scraper 13 has a brush 15 planted at the tip of the holder 14.

  6 (a) and 6 (b), the scraping scraper 13 fixes a receiving cylinder 16 having an opening directed toward the side wall to one side of the attachment 8 by welding or the like, and the scraping scraper 13 is placed in the receiving cylinder 16. The holder 14 is inserted with the brush 15 facing outward.

  The scraping scraper 13 further protrudes the brush 15 on the extension from the attachment 8, inserts the brush 15 into the gap formed by the curved surface of the side wall 11, and scrapes the powder particles that have entered the gap. As shown in FIG. 6A, the brush 15 is divided into two upper and lower brush bundles 15a and 15b, and the upper brush bundle 15a has a brush hair length that is smaller than the hair length of the lower brush 15b. The lower brush bundle 15b is long and tilted downward at a relatively steep angle, and the length of the bristles of the brush is shorter than the length of the bristles of the upper brush 15a and tilted downward at a relatively gentle angle. is there.

  In short, the brush is inserted into the gap d formed between the side wall 11 and the bottom plate 10 by the curved surface of the side wall 11 of the transport case 1, and scrapes the granular material P entering the gap d onto the bottom plate 10. The shape of the upper brush 15a is not necessarily limited to the shape shown in the figure, but the bristles of the upper brush 15a are inclined at a relatively steep angle with the length of the brush bristles being longer than the length of the bristles of the lower brush 15b. Accordingly, as shown in FIG. 7, the upper brush tip is inserted deeply into the gap d between the bottom plate 10 and the side wall 11, which is advantageous for scraping out the granular material that has entered the gap d, and the lower brush 15b. The length of the hair of the upper brush 15a is shorter than the length of the hair of the upper brush 15a and is tilted downward at a relatively gentle angle so that the granular material scraped onto the bottom plate by the upper brush 15a can be removed without difficulty. For It is possible to Te sweep up.

  In the embodiment, an example in which the scraping scraper 13 is directly attached to the attachment 8 has been described. However, the scraping scraper 13 can be attached to the holding plate 9 that holds the outer surface of the scraping plate 7. The restraining plate 9 is a restraining plate for attaching the scraping plate 7 to the attachment 8. When the restraining plate 9 is attached to the restraining plate 9, it may be considered that the restraining plate 9 is indirectly attached to the attachment 8. In this embodiment, an example in which the scraping scraper 13 is further attached to the attachment 8 to which the scraping plate 7 is attached is shown, but the scraping scraper 13 may be attached to the attachment 8, The attachment 8 to which the scraping plate 7 is attached is not selected and the scraping scraper 13 is not attached.

  Furthermore, the example of attaching the scraping scraper 13 to the attachment 8 is not limited to the above example. FIG. 8 shows an example in which the scraping scraper 13 is attached to the attachment using the attachment plate 17. In FIG. 8A, a bolt 18 is projected on the other surface of the mounting plate 17 in which the receiving cylinder 16 of the scraping scraper 13 is fixed to one surface in advance by welding or the like, and the bolt 18 is laminated with the attachment 8 and the holding plate 9. The projecting end is tightened with a nut 19. 8B, an example in which the bolt 18 on the other surface of the mounting plate 17 on which the receiving cylinder 16 of the scraping scraper 13 is fixed on one surface is inserted into the attachment 8 and the protruding end thereof is tightened with a nut 19 is used. FIG. 8C is an example in which a scraping scraper 13 is mounted on the attachment 8 to which the scraping plate 7 is attached, and the receiving cylinder 16 of the scraping scraper 13 is fixed to one surface on the surface of the scraping plate 7. The plates 17 are stacked, bolts 18 are inserted into the stack of the scraping plate 7 and the attachment 8, and the protruding ends are fastened with nuts 19. As described above, in any example, the granular material P scraped from the gap by the brush 15 of the scraping scraper 13 as the endless chain 2 continuously moves is swept away by the subsequent attachment 8 or the scraping plate 7. go.

  With the movement of the scraping plate 7 receiving the driving force of the endless chain 2, the upper brush 15a, as described above, removes the granular material that has entered the gap d between the lower edge of the side wall 11 and the bottom plate 10 into the bottom plate. 10 and the lower brush 15 b sweeps the powder particles within the length of the scraping plate 7, and the powdery material deposited on the bottom plate 10 is pushed by the attachment 8 and the scraping plate 7. However, it is conveyed on the bottom plate 10 and sent out of the conveying case 1 from the discharge port 4 at the end of the feeding.

  In the present invention, most of the granular material deposited on the bottom plate 10 is substantially swept away by the attachment 8, and the scraping plate 7 sweeps away the granular material on the bottom plate 10 that has been left behind. Therefore, it is not necessary to attach the scraping plate 7 to all the attachments 8, and it is sufficient that every several attachments 8 are installed, for example, at intervals of 2 to 4 m. The scraping scraper 13 is a consumable item. If the brush 15 is worn, the screw 14 is loosened and the holder 14 is removed from the receiving cylinder 16 and replaced with a new scraping scraper.

  When the scraping plate 7 is worn, the screw of the holding plate 9 is loosened, and the worn scraping plate 7 is removed from between the holding plate 9 and the attachment 8 and replaced with a new one. It is not limited to screwing. As shown in FIG. 9, the spring clip 20 is screwed to the attachment 8 in advance, the holding edge 20a of the spring clip 20 is opened, the scraping plate 7 is applied to the plate surface of the attachment 8, and the spring action is used. If the outer surface is pressed by the holding edge 20a of the spring clip 20 to fix the scraping plate 7 to the fixed position of the attachment 8, the scraping plate 7 can be easily replaced. Further, the claw 20b is inclined to the spring clip 20 at the base of the restraining edge 20a that suppresses the outer surface of the scraping plate 7, and the claw 20b is bitten into the scraping plate 7 so that the scraping plate 7 7 can be supported stably.

  According to the present invention, the combined use of the scraping plate 7 using synthetic resin or felt and the scraping scraper 13 using the brush 15 leaves the granular material charged as an object to be transported in the transport case 1. Therefore, after the transfer operation is completed, the cleaning operation in the transfer case 1 can be simplified, and the work efficiency of the transfer operation can be improved.

  In the present invention, since the scraping plate and the scraper having the brush are attached to the attachment attached to the chain, the scraping action of the granular material that has entered the gap between the bottom plate and the side wall of the case by the scraper is followed. It is possible to transport and unload edible cereals such as milo, soybeans, rapeseed, barley, etc. and cereals for animal feed, which are carried into the transport case by the two-stage scraping action of the scraping plate. .

It is a side view of a case conveyor to which the present invention is applied. It is a schematic diagram of an endless chain built in a conveyance case. It is the sectional view on the AA line of FIG. FIG. 4 is an enlarged cross-sectional view taken along line BB in FIG. 3. It is a perspective view which shows the attachment state of a scraping plate and a scraping scraper. The point which attaches a scraping scraper to an attachment is shown, (a) is a side view, (b) is a front view. It is a figure which shows the point which scrapes off the granular material in the clearance gap formed between a side wall and a baseplate with a brush. (A)-(c) is a figure which shows the other example of attachment of a scraping scraper. It is a figure which shows the other example of attachment of a scraping plate.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Transfer case 2 Endless chain 3 Input port 4 Discharge port 5 Sprocket 6 Rail 7 Scraping plate 8 Attachment 9 Holding plate 10 Side plate 11 Side wall 11a, 11b Clamping seat 12 Upper lid 13 Scraping scraper 14 Holder 15 Brush 15a Upper brush bundle 15b Lower brush bundle 16 Receiving cylinder 17 Mounting plate 18 Bolt 19 Nut 20 Spring clip 20a Holding edge 20b Claw

Claims (6)

A case conveyor having a scraping plate and a scraping scraper;
The scraping plate and scraping scraper are integrally attached to the endless chain in the transport case.
The scraping plate is plate-shaped and transports while scraping powder particles on the bottom plate by bringing the lower edge into contact with the bottom plate of the transport case and the outer edge contacting the inner surfaces of both side walls of the transport case. And
The scraping scraper has a brush, and the brush is inserted into the gap formed between the side wall and the bottom plate by the curved surface of the side wall of the transport case, and scrapes the granular material that has entered the gap onto the bottom plate. Case conveyor characterized by. The endless chain is spanned between the sprockets at both ends inside the transport case, has an attachment,
The attachment is extended to both sides and attached to the endless chain, and transports while scraping off some of the powder in the transport case.
The case conveyor according to claim 1, wherein the scraping plate and the scraping scraper are attached to an attachment.   The case conveyor according to claim 1, wherein the scraping scraper is attached only to a specific attachment selected as appropriate. On one side plate surface of the attachment, a receiving cylinder with the opening facing the side wall is attached,
The scraping scraper is a holder with a brush planted at the tip of the holder. The holder is inserted into the receiving cylinder with the brush facing outward, and a bolt screwed from one side of the receiving cylinder is inserted into the receiving cylinder. The case conveyor according to claim 1, wherein the case conveyor is fixed to the receiving cylinder so as to be detachable. The brush is divided into a bunch of upper and lower brushes, and the bristles of the upper brush are longer than the lower brush and tilted at a relatively steep angle. It is inserted into the gap formed between them, and the powder particles that have entered the gap are scraped out from the gap onto the bottom plate,
The bundle of the lower brush is inclined downward at a relatively gentle angle compared to the upper brush, and sweeps the powder particles scraped onto the bottom plate with the upper brush toward the scraping plate. The case conveyor according to claim 1.   The case conveyor according to claim 1, wherein the scraping plate is detachably attached to a fixed position of the attachment using a spring action of a spring clip.

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