JP6255159B2 - Powder and granular quantity supply equipment - Google Patents

Description

  The present invention relates to an apparatus for quantitatively supplying granular material for performing quantitative supply while preventing disintegration / defibration of the granular material to be supplied, such as a fibrous granular material.

  Conventionally, as an apparatus for quantitatively supplying powder particles, an outer cylinder is erected on the bottom plate, an inner cylinder is supported above the bottom plate via a powder particle discharge gap, a central rotary blade is provided on the bottom plate, A rotating body is formed by providing an outer peripheral rotating blade that extends from the cylindrical outer edge of the central rotating blade toward the inner circumferential direction, and the annular outer material between the inner and outer cylinders is located near the inner periphery of the outer cylinder. A passage is formed on the bottom plate, and the granular material diffused into the annular material passage from the granular material discharge gap is transferred to the annular material passage by rotation of the central rotary blade and the outer peripheral rotary blade. There has been proposed a powder supply device that discharges from a powder discharge port formed at a location (Patent Document 1).

  In addition, as an apparatus for quantitative supply of irregularly shaped powder particles such as waste plastic and wood material, the upper inner cylinder is supported on the upper part of an upright outer cylinder provided on the machine frame via an upper annular plate, and the upper inner cylinder A circular table is supported on the upper end of the lower small-diameter inner cylinder via a powder particle discharge gap at the lower end, and the lower end of the lower small-diameter inner cylinder and the lower end of the upright outer cylinder are connected by a lower annular bottom plate. An annular material passage is formed between the cylinder and the upright outer cylinder, and a granular material discharge port is opened at one position of the passage, and a plurality of upright rotating shafts provided at the center of the circular table are provided. A plurality of material scrapers located in the annular material passage are connected to the outer peripheral end of the rotating blades, and the powder particles diffused from the powder particle discharge gap to the circular table are When the circular blade is supplied to the annular material passage by the rotation of the rotary blade, , Powder or granular material feeding device for discharging from the powder or granular material discharge port supplied granular material in the annular material path by the rotation of the material the scraper is proposed (Patent Document 2).

JP-A-1-279085 JP 2003-335422 A 5-28536 JP2012-232813

  By the way, in the granular material supply apparatus of the above-mentioned patent documents 1 and 2, the granular material rotates in the annular material passage until it reaches a discharge port formed in one place in the annular passage. Since it moves with a blade | wing or a material scraper, the said granular material material will be in the state dragged by the rotary blade | wing or a material scraper over the comparatively long distance in the said channel | path.

  Therefore, there is no problem in conveying a granular material such as granular (small spherical) particles, such as a granular material itself, or a material that does not cause deformation, but in the case of a filamentous material such as a short fiber, It is desired to realize an apparatus capable of supplying a fixed amount in a state in which one unit of granular material is prevented from being crushed and defibrated (fiber fraying, etc.) and the shape of one unit of granular material is maintained.

  There has also been proposed a table feeder in which powder material is supplied onto a horizontal rotary table and dropped from the outer peripheral edge of the table by rotation of the horizontal rotary table (Patent Documents 3 and 4).

  By the way, in the case of a material in which particles (fibers) such as fibrous materials are easily entangled with each other, since the particles may be entangled on the rotary table, this is effectively eliminated, and the particles It is desired to achieve a highly accurate powder quantitative supply apparatus even if the powder is easily entangled, such as a fibrous material, by suppressing the pulsation at the time of discharging the powder accompanying the entanglement.

  The present invention has been made in view of the above-described conventional problems. For example, a granular material such as a fibrous material can be smoothly conveyed while preventing the material from being crushed, defibrated, and the like. An object of the present invention is to provide a powder and granular quantitative supply device capable of realizing accurate quantitative supply by preventing entanglement of easily entangled granular material such as fibrous materials.

  It is another object of the present invention to provide a granular material supply device that can suppress the pulsation of a granular material that is easily entangled, such as a fibrous material such as a fibrous material, and can realize a highly accurate quantitative supply. And

In order to achieve the above object, the present invention
First, a machine frame is fixed in a cylindrical casing, a circular fixed bottom plate centered on the upright central axis of the casing is fixed to the machine frame, and an outer peripheral edge of the circular fixed bottom plate and an inner surface of the casing are fixed. An annular gap for discharging the material is formed between them, an opening is provided on the upper surface of the casing, and an inverted conical charging hopper having the upright central axis in common is connected to the opening, and the lower end of the charging hopper An inner cylinder having the same central axis as the charging hopper and having a diameter smaller than the diameter of the circular fixed bottom plate is connected to the lower end of the inner cylinder. And a material discharge gap between the circular fixed bottom plate and the granular material charged into the inner cylinder flows out from the lower end portion of the inner cylinder onto the circular fixed bottom plate. Upright at the center of the circular fixed bottom A rotating shaft is erected, and a plurality of rotating blades centered on the upright rotating shaft are provided radially on the upright rotating shaft on the circular fixed bottom plate, and each rotating blade is arranged on the circular fixed bottom plate from the material discharge interval. It protrudes in the direction of the outer peripheral edge, and the tip end portion of each rotary blade is positioned outside the outer peripheral edge of the circular fixed bottom plate, and the rotary blade is rotated by an electric motor, thereby flowing out onto the circular fixed bottom plate. the was the granular material is moved in the outer peripheral edge direction of the fixed circular bottom plate state, and are not the granular material falls supplied to the lower housing through the annular gap from the outer peripheral edge of the circular fixed bottom plate Each rotary blade is composed of a linear round bar extending radially from the upright rotary shaft, and the axial center axis of each rotary blade is located approximately in the vertical direction of the material discharge interval. The It constituted by granular material dispensing device which is a shall.

Accordingly, the granular material on the circular fixed bottom plate is conveyed in the direction of the outer peripheral edge of the circular fixed bottom plate while being unwound by the rotation of the rotary blade, and falls downward from the outer peripheral edge of the circular fixed bottom plate. Therefore, since the granular material is not dragged over a long distance in the annular material passage in the cylinder by the rotating blades or the scraper as in the conventional apparatus, when conveying the granular material, Crushing and defibration of the powder material can be prevented. In addition, when the granular material in the inner cylinder is entangled, it can be unwound by the rotation of the rotating blade, and can be conveyed while releasing the entangled granular material such as fibrous materials. Therefore, even if it is a granular material such as a fibrous material that is easily entangled, an accurate quantitative supply can be realized by itself. If comprised in this way, since the side surface of a rotary blade is cylindrical, even if it rotates in a granular material, even if it rotates in a granular material, the granular material material itself will be suppressed, suppressing disintegration and defibration. It can be moved in the direction of the outer peripheral edge of the circular fixed bottom plate. Further, for example, when a lump of granular material is located near the material discharge gap, the rotating blades pass through a substantially intermediate portion of the granular material, so that the lump can be effectively solved. it can.

  Second, a material discharge port having an inverted conical discharge hopper having the upright central axis in common at a position below the annular interval of the casing and having the upright central axis at the lower end of the discharge hopper. It is comprised by the granular material fixed_quantity | feed_rate supply apparatus of said 1 characterized by the above-mentioned.

  Accordingly, since the granular material dropped and supplied from the annular interval is dropped and supplied through the discharge hopper and the material discharge port having the same center as the upright central axis of the circular fixed bottom plate, the outer peripheral edge of the circular fixed bottom plate Therefore, it is possible to collect the particulate material evenly supplied from the outlet as it is from the outlet, and to realize an accurate quantitative supply with little pulsation.

  Third, a certain width interval through which the granular material to be conveyed can pass is formed between the lower end of each rotary blade and the upper surface of the circular fixed bottom plate. It is comprised by the granular material fixed_quantity | feed_rate apparatus of the said 1st or 2 to do.

  The interval can be constituted by an interval t4 having a constant width. If comprised in this way, even if the granular material which has moved to the material discharge gap is entangled and a lump is formed, the rotating blade is rotated so that the rotating blade comes into contact with the lump. Since the granular material constituting the lump can be separated and passed to the upper side and the lower side of the rotating blade, the lump can be easily unwound.

Fourth , a machine frame is provided at the material discharge port, and a plurality of flow rate adjusting rods orthogonal to the upright central axis are axially supported adjacent to each other between the opposing plates of the machine frame in the horizontal direction. The adjusting rod is positioned below the material discharge port, and each shaft of each flow rate adjusting rod is formed with a plurality of blades made of radial projections in the axial direction, and each flow rate adjusting rod is opposed to each other by an electric motor. It is comprised so that it can be rotationally driven to a direction, It is comprised by the granular material fixed_quantity | feed_rate apparatus of the said 2nd or 3 characterized by the above-mentioned.

  If comprised in this way, the granular material fall-supplied from a material discharge port will temporarily stop on a flow regulating rod, and will be fall-supplied downward while being unwound by rotation of these several flow regulating rods. Therefore, the pulsation of the particulate material supplied from the material discharge port can be suppressed, and more accurate quantitative supply can be realized.

Fifth , the flow rate adjustment rod is pivotally supported in two upper and lower stages, and the lower flow rate adjustment rod is halfway from the upper flow rate adjustment rod so that it is located between the adjacent upper flow rate adjustment rods. It is supported by a state shifted in pitch, and is constituted by the powder and granular constant supply device according to any one of the second to fourth aspects.

  With this configuration, since the lower flow rate adjusting rod is positioned between the upper flow rate adjusting rods, the granular material dropped and supplied onto the flow rate adjusting rod temporarily stops on the upper and lower flow rate adjusting rods. Thereafter, the powder material can be supplied downward while the flow rate adjusting rod is rotated. Therefore, the pulsation of the granular material supplied from the material discharge port can be reliably suppressed, and more accurate quantitative supply can be realized.

  In the present invention, as described above, since the granular material is not dragged in the annular material passage for a long distance by a rotary blade or a scraper as in the conventional apparatus, the granular material such as a fibrous material is used. Even when the granular material itself can be prevented from being crushed and defibrated, and the granular material is entangled with each other, the granular material is conveyed while the entanglement is released by the rotation of the rotary blade. Thus, accurate quantitative supply can be realized even with a granular material such as a fibrous material that is easily entangled.

  In addition, the granular material dropped and supplied from the annular interval is dropped and supplied through the discharge hopper and the material discharge port having the same center as the upright central axis of the circular fixed bottom plate, so that accurate quantitative supply with less pulsation is provided. Can be realized.

  In addition, even if the granular material that has moved to the material discharge gap is entangled with each other to form a lump, the rotating blades are rotated so that the rotating blade comes into contact with the lump, thereby forming the lump. The granular material passes separately on the upper side and the lower side of the rotating blades, whereby the lump can be easily unraveled.

  Moreover, since the side surface of the rotary blade is cylindrical, the granular material can be moved in the direction of the outer peripheral edge of the circular fixed bottom plate while suppressing the pulverization and defibration of the granular material itself (one unit). The powder material can be effectively solved by the rotating blades.

  In addition, the granular material dropped and supplied from the material discharge port temporarily stops on the flow rate adjusting rod, and can be dropped and supplied downward while being unwound by the rotation of the plurality of flow rate adjusting rods. It is possible to suppress the pulsation of the granular material, and to realize a more accurate quantitative supply.

  Also, the granular material dropped and supplied onto the flow rate adjusting rod can be temporarily stopped on the upper and lower flow rate adjusting rods, and then supplied downward while solving the granular material by rotation of the flow rate adjusting rod. Therefore, the pulsation of the granular material supplied from the material discharge port can be reliably suppressed, and more accurate quantitative supply can be realized.

It is side surface sectional drawing of the granular material fixed supply apparatus which concerns on this invention. It is a top view of a powder granular material supply apparatus same as the above. It is the X1-X1 sectional view taken on the line of FIG. It is the X2-X2 sectional view taken on the line of FIG. It is the X3-X3 sectional view taken on the line of FIG. It is side surface sectional drawing of the flow volume adjusting device vicinity of a granular material fixed supply apparatus same as the above. (A) is the X4-X4 sectional view taken on the line of FIG. 1, (b) is the X5-X5 line arrow directional view of FIG. It is an expanded sectional view of the outer periphery vicinity of the circular fixed bottom board of a granular material fixed supply apparatus same as the above. It is a top view of the flow volume adjustment apparatus used for a granular material fixed supply apparatus same as the above. FIG. 10 is a sectional view taken along line X6-X6 of FIG. FIG. 10 is a sectional view taken along line X6-X6 of FIG. It is a perspective view of the flow control rod of a flow control device same as the above. It is a top view of other embodiment of a flow regulating device same as the above. It is X7-X7 sectional view taken on the line of FIG.

  Hereinafter, the granular material fixed quantity supply apparatus which concerns on this invention is demonstrated in detail.

  FIG. 1 is a side sectional view showing the entire configuration of a powder and granular constant supply device 1 according to the present invention. In the figure, reference numeral 2 denotes a cylindrical casing having an upright central axis C as a common central axis, and a cylindrical upper casing 2a and a cylindrical intermediate casing 2b are connected by a bolt B1 at a flange F1, and the intermediate The lower casing 2b and the lower casing 2c are connected by a bolt B2 at a flange F2.

  The upper opening edge (opening) 2a "of the upper casing 2a is connected to the upper cylindrical portion 3a of the charging hopper 3, and the flange F3 of the upper cylindrical portion 3c and the upper flange F4 of the upper casing 2a are bolted. The charging hopper 3 has an inverted conical hopper portion 3a having a circular opening 3 ′ having the same opening area as the upper casing 2a, with the upright central axis C as a common central axis, It is continuously connected to the lower end portion of the hopper portion 3a, and is similarly composed of a cylindrical inner cylinder 3b having the upright central axis C as a common central axis, and the lower end of the inner cylinder 3b (Lower end portion) 3b 'is fixed at a position close to a circular fixed bottom plate 6 described later.

  A cylindrical upper extension casing 3d having the upright central axis C as a common central axis is connected to the charging hopper 3 above the circular opening 3 '.

  An inverted conical discharge hopper 4 having the upright central axis C as a common central axis is connected and fixed to the lower end of the lower casing 2c by a bolt B4 with a flange F5. The lower end of the discharge hopper 4 is formed with a circular material discharge port 4a having the upright central axis C as a common central axis.

  7 is a flow rate adjusting device fixed to the circular discharge port 4a by a bolt B5 with a flange F6, and has a function of unraveling the granular material by a plurality of upper and lower flow rate adjusting rods 15 and 16, and The particulate material dropped and supplied from the discharge port 4a is once received and then discharged, thereby suppressing the pulsation of the material.

  Inside the casing 2, an internal machine frame 5 for supporting an electric motor 13 and the like to be described later is provided by three fixing bases 5b, 5b, 5b each having an outer end fixed to the intermediate casing 2b. The intermediate casing 2b is supported and fixed substantially at the center (see FIGS. 2 and 4).

  In the casing 2, a circular fixed bottom plate 6 is fixed at a substantially lower end position of the upper casing 2 a at a position having the upright center axis C as the center of the circle. The circular fixed bottom plate 6 is horizontally fixed to a flange 5a provided at the upper end portion of the internal machine casing 5 with bolts B6. The circular fixed bottom plate 6 has a larger diameter than the outer shape of the inner cylinder 3b, and its outer peripheral edge 6a extends from the position corresponding to the lower end 3b ′ of the inner cylinder 3b by a distance t2 in the radial direction. It is in a state (see FIGS. 3 and 8).

  An annular material discharge gap t1 is formed between the lower end 3b ′ of the inner cylinder 3b and the upper surface 6b of the circular fixed bottom plate 6. The outer peripheral edge of the circular fixed bottom plate 6 is formed from the material discharge gap t1. The material flows out in the 6a direction at an angle of repose θ (see FIGS. 1, 3, and 8).

  Further, an annular interval S is formed between the outer peripheral edge 6a of the circular fixed bottom plate 6 and the inner surface 2a ′ of the upper casing 2a, and the granular material flowing out from the outer peripheral edge 6a of the circular fixed bottom plate 6 Is configured to fall and be supplied from the annular interval S downward in the casing 2 (see arrow B in FIGS. 1 and 8).

  At the center of the circular fixed bottom plate 6, an upright rotating shaft 8 having the upright central axis C as a common central axis protrudes (is erected), and the upright rotating shaft 8 rotates about the upright central axis C. The boss 9 is fixed, and eight round bar-shaped rotating blades 10 having a circular cross section are attached to the side surface of the boss 9 in a radial manner. Each of the rotary blades 10 has a base end portion 10a side screwed into a side surface of the boss 9 and fixed by a nut N, and is horizontally spaced from the central rotation axis C at an equal angle of 45 degrees. Each tip portion 10b is configured to protrude from the outer peripheral edge 6a of the circular fixed bottom plate 6 by a distance t3 in the outer peripheral direction (see FIG. 8). These rotary blades 10 are configured to push the powder material M located in the vicinity of the upper surface 6b of the circular fixed bottom plate 6 in the direction of the outer peripheral edge 6a by rotating in the arrow A direction.

  Here, since the granular material to be quantitatively supplied in the present invention is a material that is easily entangled, such as a fibrous material, it immediately falls from the outer peripheral edge 6a of the circular fixed bottom plate 6 even if it receives the rotational force of the rotary blade 10. It is difficult to do. Therefore, by causing the tip 10b of the rotary blade 10 to slightly protrude from the outer peripheral edge 6a of the circular fixed bottom plate 6, even if it is a fibrous material that is easily entangled, the material is placed outside the outer peripheral edge 6a of the fixed bottom plate 6. It guide | induces and is comprised so that it can be dropped smoothly from the front-end | tip part 10b.

  Further, each rotary blade 10 has an axial center axis p positioned at an intermediate position in the vertical direction of the material discharge gap t1, that is, the lower end 3b ′ of the inner cylinder 3b and the upper surface 6b of the circular fixed bottom plate 6. Is provided so as to be positioned approximately at the center of the gap (t1) in the vertical direction (see FIG. 8). Accordingly, a constant distance (distance) t4 (for example, 10 mm) is provided between the lower end of the rotary blade 10 and the upper surface 6a of the circular fixed bottom plate 6, and the upper end of the rotary blade 10 and the lower end 3b of the inner cylinder 3b. A constant interval (for example, an interval (distance) t5 that is substantially the same as the interval t4) is also formed between.

  Thus, since each said rotary blade 10 is located in the middle of the said material discharge | emission gap | interval t1, the granular material material located in the lower part 3b 'lower part of the said inner cylinder 3b becomes intertwined, and the said material discharge | emission gap | interval t1 vicinity. Even if the lump is formed, the rotation blade 10 is configured to be able to come into contact with the central portion of the lump by the rotation of the rotary blade 10 in the direction of arrow A to eliminate the entanglement of the powder material. doing.

  The position of the lower end 3b 'of the inner cylinder 3 can be changed in the vertical direction depending on the properties of the granular material. The distance t4 between the rotary blade 10 and the upper surface 6b of the fixed bottom plate 6 is preferably relatively large (10 mm in this embodiment). This is a granular material that is easily entangled like a fibrous material, and even when a relatively large lump is formed, the granular material (for example, a fibrous material having a length of 5 mm to 10 mm) is This is because, by passing between the rotary blade 10 and the upper surface 6b, a relatively large lump formed by entanglement of the powder particles can be solved. That is, the distance t4 is a distance through which a granular material such as a fibrous material can pass.

  Furthermore, since each said rotary blade 10 is comprised with the round bar, even if it contact | abuts to granular material materials, such as a fibrous material, one unit itself of the said granular material may be crushed (namely, crushed) or The fiber of the granular material is configured not to be separated (that is, not defibrated). That is, the granular material such as glass fiber or resin fiber is a short fibrous granular material having a length of about 5 mm to 10 mm and a diameter of about 0.1 mm to 1 mm, for example. As such, it is formed as an aggregate of extremely thin fibers. When quantitatively supplying these materials, it is necessary to transport and quantitatively supply the fibers of one material without unraveling the shape (length) as a short fiber of one material. Become. Therefore, by making the rotary blade 10 into a round bar shape, since the side surface thereof is an arc surface, even if the granular material comes into contact with the side surface of the rotary blade 10, the granular material itself (one piece) is cut. Or the fiber of the granular material itself (one piece) is not scattered.

  A conical cone 11 centering on the upright central axis C is provided on the upper surface of the boss 9. The cone 11 covers the upper surface of the boss 9 and prevents segregation or cross-linking of the granular material charged into the charging hopper 3.

  The upright rotating shaft 8 is connected to an output shaft of an electric motor 13 fixed in the internal machine frame 5 via a reduction gear 12 fixed in the internal machine frame 5 below the circular fixed bottom plate 6. It is connected. Thus, the rotary blade 10 is configured to be driven to rotate at a constant speed in the direction of arrow A. Moreover, it can comprise so that the rotation speed of the said rotary blade 10 can be adjusted according to the property of the granular material to supply by controlling the rotation speed of the said electric motor 13 with an inverter.

  The flow rate adjusting device 7 is composed of a cylindrical machine casing 7a having a rectangular cross section, and six flow rate adjusting rods are arranged on the upper stage between the vertically opposed plates 14, 14 'in the front-rear direction of the cylindrical machine casing 7a. 15. Five flow rate adjusting rods 16 are pivotally supported at both lower ends 15a, 15a ′, 16a, 16a ′ at the lower stage (see FIGS. 6 and 10), and the circular material described above. The particulate material falling from the discharge port 4a is temporarily retained on the flow rate adjusting rods 15 and 16, and the flow rate adjusting rods 15 and 16 are rotated to solve these materials. 15 and 16 are gradually dispersed to the lower side to flow out, so as to eliminate the pulsation of the granular material. Below the flow rate adjusting device 7, a rectangular discharge port 7b for the granular material is formed.

  Whether or not the flow rate adjusting device 7 is used depends on the properties of the granular material or the required quantitative supply accuracy. Therefore, the flow rate adjusting device 7 is not necessary when the granular material is sufficiently solved by the rotary blade 10 or the like to achieve the desired quantitative supply accuracy. On the other hand, when a higher quantitative supply accuracy is required, or when pulsation occurs in the granular material falling from the annular interval S, and a higher quantitative supply accuracy is required by suppressing the pulsation, etc. By connecting the flow rate adjusting device 7 to the discharge port 4a, the quantitative supply accuracy can be further increased.

  In the following description, in FIG. 5, the front side in FIG. 1 is “front” in the discharge port 4 a, and the direction of the diameter line D including the upright central axis C of the circular discharge port 4 a is “front-rear direction”. In the following description, the left and right when facing from the front to the rear is defined as the “left and right direction”.

  As shown in FIGS. 9 and 10, six flow rate adjustment rods 15A to 15F from the front side to the rear side are arranged at a constant interval T1 in the left-right direction at the upper position between the opposed vertical opposing plates 14, 14 ′. And provided in parallel at the same height. These flow rate adjusting rods 15 are pivotally supported on the machine casings 14 and 14 'by both end portions 15a and 15a'. Both end portions 15a and 15a 'of these flow rate adjusting rods 15 protrude to the outside of the both machine frames 14 and 14', and can be rotated by bearings (bearings) 26 provided on the both machine frames 14 and 14 '. Is pivotally supported. In addition, about the said flow rate adjustment rod 15, the code | symbol 15A-15F is used when showing separately, and the code | symbol 15 is used when showing the rod which does not specify the whole rod or a position (it is the same also about the flow rate adjustment rod 16 of the lower stage). .

  Moreover, it is a lower stage of the flow rate adjusting rods 15A to 15F between the opposing plates 14 and 14 ', and is located in the middle of the upper flow rate adjusting rods 15 and 15 adjacent in the left-right direction. The five lower flow rate adjusting rods 16A to 16E heading from the rear side to the rear side are provided in parallel to the upper rod 15 in the left-right direction at a constant interval T1 and in parallel at the same height. (See FIGS. 10 and 12).

  As shown in FIG. 10, the lower flow rate adjusting rods 16A to 16E are half pitch from the upper flow rate adjusting rod 15 so that the rods are positioned between the upper rods 15A to 15F. In a shifted state, it is provided at a constant interval in the left-right direction. That is, as shown in FIG. 10, for example, the lower flow rate adjusting rod 16A has an intermediate position between the upper flow rate adjusting rods 15A and 15B, and the lower rod 16B has an intermediate position between the upper rods 15B and 15C (the other rods 16 also The same).

  The lower flow rate adjusting rods 16 are pivotally supported on the machine casings 14 and 14 'by means of both end portions 16a and 16a' (see FIG. 6). Both end portions 16a and 16a 'of these flow rate adjusting rods 16 protrude to the outside of the machine casings 14 and 14', and can be rotated by bearings (bearings) 26 provided on the machine casings 14 and 14 '. It is pivotally supported.

  Of the upper flow rate adjusting rod 15, the end portion of the right end flow rate adjusting rod 15 </ b> F extends to the rear side, and a driving pulley 20 is connected to the end portion, and is rotated by an electric motor 17 described later. (See FIG. 9).

  Spur gears 21 for lateral connection are respectively connected to the end portions 15a of the upper flow rate adjusting rods 15A to 15F. The flow rate adjusting rods 15A to 15F are meshed with each other by the spur gear 21. (See FIG. 9). Accordingly, by driving the flow rate adjusting rod 15F connected to the drive pulley 20 in the direction of arrow a, the flow rate adjusting rods 15A to 15F can be rotationally driven in opposite directions as shown in FIG. ing.

  Of the upper flow rate adjusting rods 15A to 15F, the end portion 15a of the third flow rate adjusting rod 15C from the left end is extended to the front side, and a spur gear 22 for vertical connection is fixed to the extended end portion. (See FIG. 9).

  Spur gears 23 for lateral connection are respectively connected to the end portions 16a of the lower flow rate adjusting rods 16A to 16E (see FIG. 11), and the flow rate adjusting rods 16A to 16E are driven by the spur gear 23. They are meshed with each other.

  Further, as shown in FIG. 11, the end of the central flow rate adjusting rod 16C of the lower flow rate adjusting rod 16 is extended to the front side, and a spur gear 24 for connecting in the vertical direction is connected to the extended end portion. The spur gear 24 meshes with the upper spur gear 22 for upper and lower connection.

  Accordingly, the spur gear 24 for vertical connection rotates in the direction of the arrow a in FIG. 11 (the direction opposite to the arrow b) by the rotation of the spur gear 22 in the direction of the arrow b, whereby the lower flow rate adjusting rods 16A to 16A. 16E is configured to be rotationally driven in the direction of the arrow shown in FIG. 11 by the spur gear 23 for lateral connection, that is, in the opposite directions.

  A motor support machine frame 30 is fixed to the outside of the vertical opposing plate 14 ′, and a rod driving motor (drive means, for example, a geared motor) 17 is fixed to the machine frame 30. A driving pulley 19 is connected to the output shaft of the electric motor 17 via a speed reducer 18, and a driving timing belt 31 is provided between the driving pulley 20 and the driving pulley 19 of the upper flow rate adjusting rod 15 </ b> F. Is stretched. Therefore, by driving the electric motor 17 and driving the upper flow rate adjusting rod 15F, all the upper and lower flow rate adjusting rods 15 and 16 can be simultaneously rotated in the direction of the arrow shown in FIG. Yes.

  Moreover, it can comprise so that the rotation speed of the said flow volume adjustment rods 15 and 16 can be adjusted according to the property of the granular material to supply by controlling the rotation speed of the said electric motor 17 with an inverter.

  As shown in FIGS. 10 to 12, the upper and lower flow rate adjusting rods 15 and 16 comprise round bars 15′16 ′, and four protrusions 25a are rounded on the outer peripheral surfaces of the round bars 15 ′ and 16 ′. The rods 15 ′ and 16 ′ are formed so as to protrude radially with an angular difference of 90 ° C. in the circumferential direction, thereby forming a cross-shaped blade 25. The flow rate adjusting rods 15 and 16 are formed with a plurality of blades 25 at the same angle in the axial direction and at regular intervals. As shown in FIG. 10, the left and right of the upper and lower flow rate adjusting rods 15 and 16 are pivotally supported at both ends 15a, 15a ′, 16a and 16a ′ by an angular difference of 45 degrees. The flow rate adjusting rods 15 and 16 are configured to be able to rotate in opposite directions to each other in the arrow direction shown in FIG. 11 while maintaining the 45-degree angle difference in the left-right direction.

  The length of the protrusion 25a of the blade 25 is slightly shorter than the inter-rod distance T1 of the adjacent flow rate adjusting rod 15, and the tip of the protrusion 25a is a circle of the flow rate adjusting rod 15 adjacent in the left-right direction. It is comprised so that it may adjoin to the side surface of rod 15 '. Furthermore, since the installation positions in the axial direction of the blades 25 of the flow rate adjusting rods 15 adjacent in the left-right direction are staggered as shown in FIG. 9, the protrusions 25a of the rods 15 adjacent in the left-right direction are It is configured not to touch.

  The relationship between the blades 25 of the flow rate adjusting rod 15 adjacent in the left-right direction is the same in the lower flow rate adjusting rod 16. That is, the length of the protrusion 25a of the blade 25 is slightly shorter than the interval (distance) T1 between the rods of adjacent flow rate adjusting rods 16, and the tip of the protrusion 25a is adjacent in the left-right direction. The installation positions in the axial direction of the blades 25 of the flow rate adjusting rods 16 which are configured to be close to the side surface of the round bar 16 ′ of the flow rate adjusting rod 16 and which are adjacent in the left-right direction are staggered as shown in FIG. Therefore, the protrusions 25a of the rods 16 adjacent in the left-right direction are configured not to contact each other.

  The distance T2 between the upper flow rate adjusting rod 15 and the lower flow rate adjusting rod 16 in the vertical direction (see FIG. 10) is determined by the distance between the tip of the protrusion 25a of the upper flow rate adjusting rod 15 and the lower flow rate adjusting rod 16 above. It is comprised so that it may have some space between the front-end | tip parts of the processus | protrusion 25a.

  Since this invention is comprised as mentioned above, operation | movement of the granular material fixed_quantity | feed_rate supply apparatus which concerns on the following this invention is demonstrated.

  Here, in this embodiment, the granular material is a short fibrous granular material (eg, glass fiber, resin fiber, etc.) having a length of about 5 mm to 10 mm and a diameter of about 0.1 mm to 1 mm. It shall be used as a reinforcing material for cement.

  First, the case where the flow rate adjusting device 7 is not used, and therefore the case where the flow rate adjusting device 7 is not connected to the discharge port 4a of the discharge hopper 4 will be described.

  The powder material M is charged into the charging hopper 3 up to the vicinity of the upper surface opening of the hopper 3. Then, the granular material M is closely packed in the inner cylinder 3b and on the circular fixed bottom plate 6, and the vertical pressure of the granular material M acts on the circular fixed bottom plate 6, and the inner cylinder 3b. A pressure in the outer horizontal direction acts on the inner surface. Therefore, the granular material M in the inner cylinder 3b is directed outward (in the direction of the arrow fa in FIG. 3) from the material discharge gap t1 between the lower end 3b ′ of the inner cylinder 3b, which is an opening at the lower end, and the circular bottom plate 6. Slightly pushed out and discharged from the lower end 3b ′ over the entire circumference of the lower end 3b ′ of the inner cylinder 3b at a repose angle θ degrees from the material discharge gap t1 within a distance t2 on the circular bottom plate 6. (See FIG. 1, FIG. 3M ′, FIG. 8.)

  In this state, the electric motor 13 is driven to rotate the rotary blade 10 in the arrow A direction at a constant speed. Then, although the granular material M on the circular fixed bottom plate 6 also tries to rotate in the direction of arrow A, since there is wall resistance between the granular material M and the inner wall of the inner cylinder 3b, The powder material M is not rotated, but the rotation of the rotary blade 10 causes the powder material M in the vicinity of the circular fixed bottom plate 6 near the lower end 3b ′ of the inner cylinder 3b to move to the circular fixed bottom plate. 6 receives the force (arrow fb) in the tangential direction of the outer circumferential circle 6 (see FIG. 3).

  Then, the powder material M in the vicinity of the lower end 3b ′ of the inner cylinder 3b has a force to move outward of the material M based on the vertical pressure, that is, a force fa in the outer direction (radial direction), The combined force of the tangential force fb acts, and the granular material M is in the direction of the outer peripheral edge 6a of the circular fixed bottom plate 6 slightly inclined in the traveling direction of the rotary blade 10 from the radial direction (arrow fa direction) ( As a result, it moves downward from the entire circumference of the outer peripheral edge 6a of the circular fixed bottom plate 6 through the annular interval S.

  Thus, the granular material M that has flowed radially from the lower end 3b ′ of the inner cylinder 3b moves in the arrow fc direction, moves a short distance to the nearest outer peripheral edge 6a, and falls from the outer peripheral edge 6a. To go. Therefore, in the granular material fixed supply device 1 of the present invention, since the granular material is not dragged for a long distance by the scraper or the rotary blade in the annular passage unlike the conventional granular material supplying device, it is being conveyed. The fibrous granular material can be prevented from being crushed or defibrated without being crushed or defibrated.

  Since the rotary blade 10 is located at a substantially middle position of the material discharge gap t1, that is, a substantially middle position between the lower end 3b ′ of the inner cylinder 3b and the upper surface 6b of the circular fixed bottom plate 6, the material discharge gap Even if the fibrous granular material M is entangled and formed into a lump at t1, the rotation of the rotary blade 10 in the direction of arrow A causes the rotation to occur at the substantially central portion of the lump located at the material discharge interval t1. When the blades 10 come into contact with each other, the lump-like powder material can be efficiently unraveled. Therefore, although the granular material in the inner cylinder 3b is appropriately unwound by the rotation of the rotary blade 10, the circular fixed bottom plate 6 can be smoothly smoothed in a state where the material itself is prevented from being crushed or defibrated. Is supplied downward from the outer peripheral edge 6a.

  That is, even if the granular material that has moved to the material discharge gap t1 is entangled with each other to form a lump, the rotating blade 10 rotates, so that the rotating blade 10 contacts the lump, thereby The granular material constituting the material passes separately on the upper side and the lower side of the rotary blade 10, whereby the lump can be easily unraveled.

  Further, since the rotary blade 10 rotates at a position spaced apart (distance) t4 upward from the upper surface 6b of the circular fixed bottom plate 6, not only the powder material located in the vicinity of the material discharge gap t1, Also in the inner cylinder 3b internal position, by contacting the granular material near the upper surface 6b of the circular fixed bottom plate 6, the granular material can be appropriately solved. Further, since the rotary blade 10 has a round bar shape, even if the side surface (cylindrical shape) of the rotary blade 10 abuts on the fibrous granular material, the granular material itself is crushed or defibrated. It will never be done.

  Moreover, since the front-end | tip part 10b of the said rotary blade 10 protrudes a little outward from the outer periphery 6a of the said circular fixed bottom plate 6, even if it is a granular material which is easy to get entangled, the said granular material is the said outer periphery. It is guided to the tip 10b of the rotary blade 10 outside 6a, and falls smoothly downward from the tip 10b. Therefore, even if it is a granular material which is easy to get entangled, it can fall smoothly downward from the front-end | tip part 10b of the rotary blade 10. FIG.

  And the granular material material which fell from the said cyclic | annular space | interval S descend | falls the said casing 2, descend | falls the discharge hopper 4, and falls and is supplied downward from the circular discharge port 4a of the lower end of the said hopper 4 concerned. .

  As described above, the granular material M is prevented from being broken and defibrated by the granular material itself (one unit) without being dragged over a long distance by a scraper or the like, and the rotation of the rotary blade 10. Therefore, even if it is a granular material such as a fibrous material that is easily entangled, it can be supplied with high accuracy.

  Next, the operation when the flow rate adjusting device 7 is used will be described. The operation from the annular interval S until the granular material falls is the same as described above. In the case where a highly accurate quantitative supply is required or a material that is very easily entangled, the flow rate adjusting device 7 is connected to the flange F6 of the material discharge port 4a with a bolt B5 as shown in FIG. Then, the electric motor 17 is rotationally driven at a constant speed.

  Then, the upper flow rate adjusting rod 15 and the lower flow rate adjusting rod 16 rotate in the directions opposite to each other in the arrow direction shown in FIG. The particulate material falling from the material discharge port 4a is dropped and supplied onto the upper flow rate adjusting rod 15. Then, the granular material temporarily stops on the upper flow rate adjusting rod 15, but is sent downward while being unwound by the rotation of the blade 25 formed of the cross-shaped protrusion 25 a of the flow rate adjusting rod 15. While being subsequently unwound by the rotation of the blades 25 of the flow rate adjusting rod 16, it is dropped and supplied downward.

  At this time, since the lower flow rate adjusting rod 16 is positioned between the adjacent upper flow rate adjusting rods 15, the granular material sent downward from the upper flow rate adjusting rod 15 has a lower flow rate. It falls on the adjustment rod 16 and then is dropped and supplied by rotation of the blades 25 of the lower flow rate adjustment rod 16. Therefore, it is not directly dropped and supplied downward from the upper flow rate adjusting rod 15, and the pulsation of the granular material M can be reliably suppressed.

  Accordingly, the granular material dropped and supplied from the annular space S is re-dissolved by the flow rate adjusting device 7, and some pulsation (dropped) occurs in the granular material falling from the annular space S. Even if there is a wave of increase or decrease in the amount of the supplied granular material, the granular material temporarily stops on the flow rate adjusting rods 15 and 16, and then the flow rate adjusting rods 15 and 16 rotate. Therefore, the pulsation can be smoothed, and an accurate quantitative supply of the granular material without pulsation can be realized.

  Also, for some reason, the massive powder material is temporarily dropped from the annular space S, and a large pulsation occurs in the material supplied from the discharge port 4a onto the upper flow rate adjusting rod 15. In addition, the lump-like granular material is temporarily stopped on the upper flow rate adjusting rod 15 and supplied downward while being gradually unwound by the plurality of rotary blades 25, and further the lower flow rate adjusting rod. After being further solved by the 16 plural rotating blades 25, it is supplied downward.

  Therefore, the granular material dropped and supplied below the lower flow rate adjusting rod 16 can supply the granular material in which the pulsation is smoothed and sufficiently solved without entanglement. Therefore, accurate quantitative supply can be performed.

  By connecting the flow rate adjusting device 7 in this way, it is possible to realize higher quantitative supply accuracy.

  FIGS. 13 and 14 show a flow rate adjusting device 7 ′ according to another embodiment of the flow rate adjusting device 7. Since the basic configuration of the flow rate adjusting apparatus of this embodiment is the same as that of the flow rate adjusting apparatus 7 shown in FIG. 9, the same reference numerals are given to the same parts and corresponding parts as the apparatus 7, and the description thereof is omitted. In the flow rate adjusting device 7 ′, four flow rate adjusting rods 27 </ b> A to 27 </ b> D are provided on the upper stage, and three flow rate adjusting rods 28 </ b> A to 28 </ b> C are provided on the lower stage so as to be shifted from the upper rod 27 by a half pitch.

  In addition, blades 29 are formed on the outer peripheral surfaces of the flow rate adjusting rods 27 and 28 by means of cross-shaped protrusions 29a. These blades 29 are provided on the left and right adjacent rods, unlike the blades 25 of FIG. 9, in the axial direction and are provided at the same position in the left and right directions. Therefore, the protrusions 29a of the left and right adjacent rods 15 and 16 are provided. , 29a have a short length so as not to contact each other due to the rotation of the rod.

  The flow rate adjusting rods 27 and 28 are rotated in the direction of the arrow shown in FIG. 14 (adjacent rods are opposite to each other) by the same drive mechanism as the flow rate adjusting device 7.

  Also in the flow rate adjusting device 7 ′ of the present embodiment, after the powder material falling from the annular interval S is unraveled and temporarily retained on the upper flow rate adjusting rod 27, as in the flow rate adjusting device 7. It has the effect which suppresses the pulsation of a granular material material by sending out below.

  Further, the protrusions 29a constituting the blades 29 of the flow rate adjusting rods 27 and 28 have a circular cross section and do not overlap each other in the left-right direction when viewed from the axial direction of the rods. Even if the body material comes into contact, the contact resistance to the fibrous material is small, so that the fibrous material can be prevented from being crushed or defibrated, while maintaining the shape of the fibrous material itself (one unit), When the powder particles are entangled with each other, they can be sent downward while effectively solving them.

  As described above, in the present invention, since the granular material is not dragged in the annular material passage for a long distance by a rotary blade or a scraper unlike the conventional apparatus, for example, the granular material is a granular material such as a fibrous material. Even if the powder material can be prevented from being crushed and defibrated, and the powder materials are intertwined with each other, the powder material is obtained by effectively resolving the entanglement by the rotation of the rotary blade 10. Thus, accurate quantitative supply can be realized even if it is a granular material such as a fibrous material that is easily entangled.

  Moreover, since the granular material dropped and supplied from the annular interval S is dropped and supplied through the discharge hopper 4 and the material discharge port 4a having the same center as the upright central axis C of the circular fixed bottom plate 6, the pulsation is caused. Less accurate quantitative supply can be realized.

  Further, even if the granular material that has moved to the material discharge gap t1 is entangled and a lump is formed, the rotating blade 10 rotates, so that the rotating blade 10 abuts on the lump so that the lump is formed. The granular material constituting the material passes separately on the upper side and the lower side of the rotary blade 10, whereby the lump can be easily unraveled.

  Moreover, since the side surface of the rotary blade 10 is cylindrical, the granular material is moved in the direction of the outer peripheral edge 6 a of the circular fixed bottom plate 6 while suppressing crushing and defibration of the granular material itself (one unit). In addition, the rotary blade 10 can effectively solve the powder material.

  In addition, when the flow rate adjusting device 7 (or 7 ′) is used, the particulate material dropped and supplied from the discharge port 4a is temporarily stopped on the flow rate adjusting rod 15 (27) of the flow rate adjusting device 7 (7 ′). The pulsation of the granular material supplied from the material discharge port 4a can be suppressed, and the pulsation of the granular material supplied from the material discharge port 4a can be suppressed. Accurate quantitative supply can be realized.

  The granular material dropped and supplied onto the flow rate adjusting rod is temporarily stopped on the upper and lower flow rate adjusting rods 15 and 16 (27, 28), and then the granular material is removed by rotation of the upper and lower flow rate adjusting rods. Since it can supply below, it can suppress reliably the pulsation of the granular material material supplied from the material discharge port 4a, and can implement | achieve more highly accurate quantitative supply.

  In the said embodiment, although the granular material like a fibrous material was demonstrated, in the granular material fixed amount supply apparatus of this invention, it is like a vegetable, a seaweed ingredient, a dried shrimp, for example. It is a foodstuff, and can be used even when a constant supply is required while preventing the material from being crushed and maintaining the shape of the material itself. In FIG. 1, reference numeral 32 denotes an inspection port.

  The granular material quantitative supply device according to the present invention can be widely used for quantitative supply of easily entangled granular material such as a fibrous material. In addition to fibrous materials, for example, various food materials such as side dishes, pet food, etc., which are widely used in cases where quantitative supply is required while maintaining the shape of the granular material itself. Can be used.

DESCRIPTION OF SYMBOLS 1 Powder granular-quantity supply apparatus 2 Casing 2a 'Inner surface 2a "Upper opening edge (opening part)
DESCRIPTION OF SYMBOLS 3 Input hopper 3b Inner cylinder 3b 'Lower end 4 Discharge hopper 4a Material discharge port 5 Machine frame 6 Circular fixed bottom plate 6a Outer peripheral edge 6b Upper surface 7 Flow control device 7a Machine frame 8 Upright rotating shaft 10 Rotary blade 10b Tip part 13 Electric motors 14, 14 'Opposite plates 15, 27 Upper flow rate adjustment rods 16, 28 Lower flow rate adjustment rods 17 Electric motors 25, 29 Blades 25a, 29a Protrusion p Center axis S Annular interval t1 Material discharge gap t4 Constant width interval C Upright center axis

Claims (5)

A machine frame is fixed in a cylindrical casing, a circular fixed bottom plate centered on the upright central axis of the casing is fixed to the machine frame, and material is discharged between the outer peripheral edge of the circular fixed bottom plate and the casing inner surface. Forming an annular spacing for
An opening is provided on the upper surface of the casing, and an inverted conical charging hopper having the upright central axis in common is connected to the opening, and the charging hopper and the central axis are in common at the lower end of the charging hopper Connecting an inner cylinder having a diameter smaller than the diameter of the circular fixed bottom plate,
The inner cylinder is arranged above the circular fixed bottom plate, a material discharge gap is formed between the lower end portion of the inner cylinder and the circular fixed bottom plate, and the granular material charged into the inner cylinder is Configured to flow out from the lower end of the inner cylinder onto the circular fixed bottom plate,
An upright rotating shaft is erected at the center of the circular fixed bottom plate, and a plurality of rotating blades centered on the upright rotating shaft are provided radially on the upright rotating shaft on the circular fixed bottom plate, and each rotating blade is made of the material Projecting in the direction of the outer peripheral edge of the circular fixed bottom plate from the discharge interval, the tip of each rotary blade is positioned outside the outer peripheral edge of the circular fixed bottom plate,
By rotating the rotating blades by an electric motor, the powder material flowing out on the circular fixed bottom plate is moved in the outer peripheral direction of the circular fixed bottom plate,
The granular material through the annular gap from the outer peripheral edge of the circular fixed bottom plate all SANYO falling supplied to the lower housing,
Each of the rotating blades is composed of a linear round bar extending radially from the upright rotating shaft, and the axial center axis of each rotating blade is located approximately in the vertical direction of the material discharge interval. An apparatus for quantitatively supplying powder particles , characterized in that   An inverted conical discharge hopper having a common upright central axis is connected to a position below the annular interval of the casing, and a material discharge port having the upright central axis in common is provided at the lower end of the discharge hopper. The granular material quantitative supply device according to claim 1, wherein:   The space | interval of the fixed width | variety through which the granular material which should be conveyed can pass between the lower end part of each said rotary blade and the upper surface of the said circular fixed bottom board is formed. Or the granular material fixed_quantity | feed_rate supply apparatus of 2 description. A machine frame is provided at the material discharge port, and a plurality of flow rate adjusting rods orthogonal to the upright central axis line are axially supported adjacent to each other between the opposing plates of the machine frame in the horizontal direction. Located below the material outlet,
A plurality of blades made of radial projections are formed in the axial direction on each axis of each flow rate adjusting rod,
4. The granular material quantitative supply device according to claim 2, wherein each of the flow rate adjusting rods is configured to be driven to rotate in opposite directions by an electric motor . The flow rate adjustment rod is pivotally supported in two stages, upper and lower, and the lower flow rate adjustment rod is located between the adjacent upper flow rate adjustment rods so that the upper flow rate adjustment rod is shifted by a half pitch. The granular material quantitative supply device according to any one of claims 2 to 4 , wherein the device is supported by a shaft .

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