JP2014105044A - Powder supply device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a powder supply device easy in maintenance, and having versatility suitable for handling various powders, by always smoothly and properly supplying the powder, with a simple constitution.SOLUTION: A bottom opening part 18 of a hopper 10 is connected with a funnel-shaped chute pipe 30 via an inclined porous plate 22 inclined at a predetermined angle to a horizontal plane, and the chute pipe is supported by a support frame body 44 having vibration imparting means 32, and is constituted so as to properly adjust dispersibility and fluidity of the powder of flowing down by imparting vibration together with the inclined porous plate by the vibration imparting means, and a lower end opening part 31b of the chute pipe 30 is also connected with a flexible elastic pipe 34, and gate means 50 is provided by oppositely arranging a pair of opening-closing plates 52 and 54 for mutually approaching-separating to an outside surface of the flexible elastic pipe, and is constituted so as to discharge the powder by making the powder flow down intermittently and quantitatively.

Description

  According to the present invention, powder is stored in a hopper, and the stored powder is allowed to flow smoothly by providing vibration imparting means capable of appropriately adjusting the dispersibility and fluidity of the powder at the bottom of the hopper. The present invention relates to a powder supply apparatus configured to dispose an intermittent quantitative discharge of powder by providing a flexible elastic pipe having an opening / closing means for properly opening and closing a powder passage at the lower part.

  Conventionally, as this type of powder supply device, for example, a cylindrical nozzle extending straight to the lower end of the hopper that stores powder is formed, and an opening of the hopper is formed at the lower end. A shutter mechanism is provided at the bottom of the hopper so as to cover the opening above the opening, and the shutter mechanism further includes a mesh for controlling the fall of powder from the hopper opening, There has been proposed a powder filling apparatus comprising a vibration applying means for applying vibration to the mesh and an ultrasonic vibrator for applying ultrasonic vibration to the mesh (see Patent Document 1).

  Since the powder filling device described in Patent Document 1 includes a shutter mechanism that allows the powder to pass through the mesh by the operation of the vibration applying means, the conventional powder filling device is used. This eliminates the need for the auger, and thus eliminates the inconvenience caused by the auger and simplifies the maintenance such as cleaning because the filling mechanism has a simple configuration.

  In addition, a shut-off valve housing provided with a shut-off valve is connected to the outlet of the powder supply cylinder, and a pair of mesh bodies that vibrate to disperse the powder granules are arranged above and below the outlet part of the supply pipe. An intermediate funnel for regulating the intermediate charging amount is arranged immediately below the lower mesh body, and the shut-off valve is opened to rapidly charge a large amount of powder particles in the shut-off valve housing, and then the intermediate funnel. Proposal of a granular material weighing-in device that has a configuration in which a medium amount of the granular material is charged and a small amount of the granular material between the pair of nets is gradually added until the written amount is reached. (See Patent Document 2).

  Further, in the conventional powder supply apparatus, as means for supplying powder from a mass supply machine to a small container, a pinch valve is constituted by a conduit made of an elastic body, forming a powder passage, and a nip means sandwiching the conduit. It is known that the powder is supplied by intermittently opening and closing the pinch valve (see Patent Document 3). Similarly, in the granular material charging system in which the granular material is dropped from the discharge portion through the induction tube made of a flexible cylindrical body and charged into a lower device, a plurality of pinch valves are arranged with respect to the induction tube. Thus, it is known to configure so as to control the fall of the granular material (see Patent Document 4).

JP 2002-234501 A Japanese Patent Publication No.53-002704 JP 2000-095213 A JP 2000-198548 A

  As disclosed in Patent Documents 1 to 4, the powder is stored in a hopper, and the stored powder is provided with a mesh (mesh) at the bottom of the hopper. It is known that the flow can be adjusted while the flow rate is adjusted, and that the powder is intermittently discharged using an opening / closing means comprising a pinch valve together with a conduit or flexible tube made of an elastic body in the lower part. It has been.

  However, in today's various industrial fields, there are changes in properties such as fluidity, cohesiveness, and wearability of the powders handled, so quantitative supply of powders having these various property changes. On the other hand, it is required to supply powder having versatility that can be handled smoothly and appropriately.

  From such a point of view, the present inventors, for example, in the above-described conventional powder supply apparatus, store powder in a hopper, and store the stored powder at the bottom of the hopper with a mesh (mesh). It is configured to flow down by applying vibration to this mesh, but as described above, in order to properly disperse and fluidize according to the properties of the powder, The use of a mesh (network body) with a simple configuration is inappropriate, and the configuration is adjusted appropriately in consideration of the dispersibility and fluidity according to the properties of the powder, and the configuration imparts vibration. It was confirmed that there was a need to improve or improve the arrangement.

  Similarly, in the above-described conventional powder supply apparatus, when the powder is intermittently discharged using an opening / closing means including a pinch valve together with a conduit formed of an elastic body or a flexible tube, As a means for opening and closing the conduit or flexible tube made of the elastic body according to the properties of the powder, it is inappropriate to use a conventional pinch valve having a simple configuration, and these points are also appropriate. It was confirmed that there was a need to improve or improve.

  Therefore, the present inventors have conducted various studies and trial productions based on the confirmation items of the conventional powder supply device described above, and as a result, stored the powder in the hopper, and stored the stored powder at the bottom of the hopper. Provided with a vibration imparting means capable of adjusting the dispersibility and fluidity of the powder and smoothly flowing down, and further provided with a flexible elastic pipe provided with an opening / closing means for opening and closing the powder passage at the outer periphery thereof. In the case of configuring a powder supply device that performs intermittent quantitative discharge of the body, (1) a funnel-shaped chute pipe in which an inclined perforated plate inclined at a predetermined angle with respect to a horizontal plane is connected to the bottom opening of the hopper The chute pipe is configured to be supported by a support frame having a vibration imparting electric motor, and (2) a flexible elastic pipe is connected to the lower part of the chute pipe so as to face and move away from the surrounding portion. A pair of opening and closing plates In order to supply and discharge the appropriate powder smoothly and constantly according to the properties of the powder It was ascertained that a powder supply apparatus capable of producing

  That is, in the present invention, as the inclined perforated plate arranged in the funnel-shaped chute pipe, according to the properties of the respective powders to be handled, the shape of the hole and the opening ratio can be appropriately selected and adjusted. In addition, the inclined perforated plate is inclined at a required angle with respect to a horizontal plane, and the funnel-shaped chute pipe is supported by a support frame body provided with a vibration-applying electric motor. It was found that the fluidity can be properly improved and the powder can flow smoothly.

  Further, in the present invention, when the flexible elastic pipe is connected to the lower part of the chute pipe, and the gate means comprising a pair of opening and closing plates facing and separating from each other is provided in the peripheral part, the flexible elastic pipe As for the arrangement of the opening and closing plates when sandwiching and closing with a pair of opening and closing plates approaching from both sides, the opposed tip shapes of the opening and closing plates are appropriately set and also for the flexible elastic piping to be sandwiched It has been found that a powder supply apparatus that can always set the open / closed state as the gate means stably and appropriately can be obtained by appropriately adding the reinforcing means.

  Accordingly, an object of the present invention is to store powder in a hopper, and to smoothly flow down the stored powder by providing vibration imparting means capable of appropriately adjusting the dispersibility and fluidity of the powder at the bottom of the hopper. In addition, a flexible elastic pipe provided with an opening / closing means for appropriately opening / closing the powder passage at the lower part thereof is provided at the lower part thereof so that intermittent quantitative discharge of powder can be performed constantly. It is an object of the present invention to provide a powder supply apparatus that achieves smooth and proper powder supply, is easy to maintain, and has versatility suitable for handling various powders.

In order to achieve the above object, a powder supply apparatus according to claim 1 of the present invention stores powder in a hopper, and the stored powder has the dispersibility and fluidity of the powder at the bottom of the hopper. A powder that disperses powders intermittently by providing a flexible elastic pipe with an opening and closing means that opens and closes the powder passage at the outer periphery at the lower part thereof by providing adjustable vibration imparting means. A body supply device,
A funnel-shaped chute pipe is connected to the bottom opening of the hopper via an inclined perforated plate inclined at a predetermined angle with respect to a horizontal plane,
The chute pipe is supported by a support frame provided with vibration imparting means, and is configured to appropriately adjust the dispersibility and fluidity of the powder flowing down by the vibration imparting means together with the inclined perforated plate. And
In addition, a flexible elastic pipe is connected to the lower end opening of the chute pipe, and gate means is provided in which a pair of opening and closing plates that are close to and away from each other with respect to the outer surface of the flexible elastic pipe. Is characterized in that it is discharged intermittently and quantitatively and discharged.

  In the powder supply apparatus according to claim 2 of the present invention, the inclined perforated plate is inclined at a predetermined angle with respect to a horizontal plane by an annular support member that engages with an upper end opening of the funnel-shaped chute pipe. It has a configuration in which a perforated plate having a plurality of through holes having an opening ratio is supported.

  In the powder supply apparatus according to claim 3 of the present invention, the funnel-shaped chute pipe in which the inclined perforated plate is disposed is supported by a support frame in which a vibration imparting electric motor is disposed, and an upper portion of the support frame is supported. It is characterized in that the upper end opening of the funnel-shaped chute pipe is engaged and arranged at the center of the cover plate.

  In the powder supply apparatus according to claim 4 of the present invention, the gate means has a side edge portion facing each of a pair of opposedly arranged opening and closing plates that are close to and away from the flexible elastic pipe. It is characterized in that it is arranged so as to intersect with each other or cross each other.

  The powder supply apparatus according to claim 5 of the present invention, wherein the flexible elastic pipe provided with the gate means is a side surface on which one side edge portions of a pair of opposingly arranged opening and closing plates that come close to and away from each other come into contact. On the other hand, the flexible elastic pipe has a reinforcing structure for appropriately bending and shaping.

  As is clear from the above-described embodiments, according to the powder supply apparatus of the first aspect of the present invention, the dispersibility and fluidity of the powder are appropriately adjusted according to the properties of the powder with a simple configuration. The powder can be allowed to flow down, and the powder can be intermittently and quantitatively discharged at a lower level.

  According to the powder supply apparatus of the second aspect of the present invention, the powder flowing down from the bottom of the hopper is made into the properties of the powder by the funnel-shaped chute pipe in which the inclined perforated plate having the above-described configuration is arranged. By adapting and appropriately adjusting the dispersibility and fluidity, intermittent quantitative discharge of the powder can be performed smoothly and efficiently.

  According to the powder supply apparatus of the third aspect of the present invention, the powder flowing down from the bottom of the hopper is suitable for the funnel-shaped chute pipe in which the inclined perforated plate is disposed by the vibration applying means having the above-described configuration. By applying vibration, the dispersibility and fluidity are appropriately adjusted so as to match the properties of the powder, and intermittent quantitative discharge of the powder can be performed smoothly and efficiently.

  According to the powder supply apparatus of the fourth aspect of the present invention, when the powder flowing down from the bottom of the hopper is brought into contact with the flexible elastic pipe by the gate means having the above structure, the pair of opening and closing plates By setting the side edges to slightly overlap each other so as to block and hold the flexible elastic pipe 34, there is no leakage of the powder flowing down the flexible elastic pipe. Intermittent quantitative discharge can always be performed smoothly and reliably.

  According to the powder supply apparatus of the fifth aspect of the present invention, the side surface of the flexible elastic pipe is reinforced with respect to the gate means for intermittently discharging the powder with respect to the powder flowing down from the bottom of the hopper. Thus, when the flexible elastic pipe 34 is closed and clamped by one side edge of a pair of opening and closing plates, the flexible elastic pipe can be appropriately bent and shaped, and the powder is always stable and intermittent. Constant discharge can always be performed smoothly and reliably.

It is a principal part cross-sectional side view which shows one Example of the powder supply apparatus which concerns on this invention. It is a principal part disassembled perspective view of the powder supply apparatus shown in FIG. 1 about the arrangement | positioning arrangement | positioning of the inclined perforated plate, chute | pipe piping, and gate means applied to the powder supply apparatus of this invention. It is a principal part perspective view of the support frame provided with the vibration provision electric motor shown in FIG. 2 about the structure arrangement | positioning of the gate means applied to the powder supply apparatus of this invention, and a hopper support stand. The inclined porous plate applied to the powder supply apparatus of this invention is shown, Comprising: (a) thru | or (c) is a perspective view which shows each modification of an inclined porous plate. FIG. 5A shows an open state of the gate means applied to the powder supply apparatus of the present invention, wherein (a) is a schematic perspective view, (b) is a front view thereof, and FIG. The closed state of the gate means applied to a powder supply apparatus is shown, (a) is a schematic perspective view, (b) is the front explanatory drawing. 6A to 6D show modifications of a pair of opening and closing plates of the gate means applied to the powder supply apparatus of the present invention, wherein (a) is a schematic perspective view and (b) is a front explanatory view thereof. It is. 1 shows a flexible elastic pipe applied to the powder supply apparatus of the present invention, in which (a) is a schematic perspective view of the flexible elastic pipe in an open state by a gate means, and (b) is a drawing of the flexible elastic pipe. It is a schematic front explanatory view in the closed state by the gate means. It is a reinforcement means of the flexible elastic piping which provided the gate means applied to the powder supply apparatus of this invention, Comprising: (a) thru | or (e) is explanatory drawing which shows each modification of a reinforcement means.

  Next, embodiments of the powder supply apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 shows an embodiment of a powder supply apparatus according to the present invention. That is, in FIG. 1, reference numeral 10 indicates a hopper for charging and storing powder, and the top cover plate 12 of the hopper 10 is provided with a powder charging port 14 and an air vent 16. A funnel chute pipe 30 is connected to the bottom opening 18 of the hopper 10 via a first flexible elastic pipe 20.

  An inclined perforated plate 22 is engaged and disposed at a connection portion between the first flexible elastic pipe 20 and the upper end opening 31 a of the funnel-shaped chute pipe 30. On the outer periphery of the funnel-shaped chute pipe 30, a pair of vibration imparting electric motors 32, 32 are provided as vibration imparting means configured to impart vibration to the chute pipe 30. The hopper 10 is supported by a support frame body 44 disposed via a vibration isolator 42 on a hopper support base 40 that supports the hopper 10 via a plurality of hopper columns 26.

  The funnel-shaped chute pipe 30 has an upper end opening 31a engaged and disposed at the center of the cover plate 46 covering the upper part of the support frame 44, and further a second flexible elastic pipe at the lower end opening 31b. 34 is connected. Note that a lower end portion of the second flexible elastic pipe 34 is connected to a discharge pipe 36 fixed to the hopper support frame 40.

  Further, a gate means 50 is provided in which a pair of opening and closing plates 52 and 54 that are close to and away from each other are arranged opposite to the outer surface of the second flexible elastic pipe 34.

  The powder supply apparatus in the present embodiment basically has the above-described configuration. Next, the features of the powder supply apparatus according to the present invention will be described in detail below with reference to FIGS.

  FIG. 2 is a characteristic component of the powder supply apparatus according to the present invention, and is connected to the first flexible elastic pipe 20, the inclined perforated plate 22, and the funnel connected below the bottom opening 18 of the hopper 10. FIG. 2 is an exploded perspective view of a main part corresponding to the configuration shown in FIG. 1 described above, showing the configuration and arrangement of the chute pipe 30, the second flexible elastic pipe 34 and the gate means 50.

  Therefore, in FIG. 2, the first flexible elastic pipe 20 is connected to the bottom opening 18 of the hopper 10 by a pipe fastener 21 a and is connected to the funnel-shaped chute pipe 30 via the inclined perforated plate 22. It is joined by a fastener 21a. The funnel-shaped chute pipe 30 includes a pair of vibration imparting electric motors 32 and 32 as vibration imparting means, and covers the upper portion of the support frame body 44 provided on the hopper support base 40 in a vibration-proof manner. The lid plate 46 is engaged with the central portion. The lid plate 46 is disposed on the upper portion of the support frame 44 and is fixed using a fixing bracket 48 as appropriate. Furthermore, the lower end opening 31b of the funnel-shaped chute pipe 30 is appropriately coupled to the second flexible elastic pipe 34 disposed on the support frame body 44 side by a pipe fastener.

  In FIG. 3, the second flexible elastic pipe 34 is provided with a gate means 50 in which a pair of opening and closing plates 52 and 54 that are close to and away from each other with respect to the outer surface of the second flexible elastic pipe 34. The pair of opening and closing plates 52 and 54 is supported by the pair of opening and closing plates 52 and 54 provided on the hopper support base 40 and gate driving means 56 having opening and closing drive arms 53 and 55 for performing opening and closing operations, respectively. Provided.

  (A) thru | or (c) of FIG. 4 show the Example which can each deform | transform the inclination porous plate 22 applied to the powder supply apparatus of a present Example. As the inclined perforated plate 22 of the present embodiment, an annular support member 23 having a size that can basically engage with the upper end opening of the funnel-shaped chute pipe 30 and a predetermined angle with respect to the horizontal plane with respect to the annular support member 23. And a perforated plate 25 provided with a plurality of through holes 24 having a required aperture ratio.

  In this case, the inclined angle of the inclined perforated plate 22 with respect to the horizontal plane is preferably set to 5 ° to 30 °, and the shape and dimensions of the through holes 24 can be variously modified as shown in the figure.

  By configuring as described above, the powder flowing down from the bottom of the hopper 10 is applied to the funnel-shaped chute pipe 30 in which the inclined perforated plate 22 is arranged by the electric motors 32 and 32 as vibration applying means having the above-described configuration. Appropriate vibration can be applied to adjust the dispersibility and fluidity appropriately so as to match the properties of the powder, and intermittent quantitative discharge of the powder can be performed smoothly and efficiently. In the present embodiment, the first flexible elastic pipe 20 coupled between the bottom opening 18 of the hopper 10 and the funnel-type chute pipe 30 causes vibration applied to the funnel-type chute pipe 30 to the hopper 10. It has an anti-vibration function that prevents transmission.

  5A and 5B show the arrangement of a pair of opening and closing plates 52 and 54 supported by a pair of opening and closing drive arms 53 and 55, respectively, which are driven by the gate driving means 56 as the gate means 50. FIG. That is, in this embodiment, as shown in the drawing, the respective one side edge portions 52a and 54a of the pair of opposed opening and closing plates 52 and 54 that are close to and away from the flexible elastic pipe 34 are respectively It is constructed so as to intersect in steps.

  By configuring as described above, when the one side edge portions 52a and 54a facing each other of the pair of opening and closing plates 52 and 54 opposed to each other come into contact with the flexible elastic pipe 34, the pair of One side edge portions 52a and 54a of the opening / closing plate slightly overlap each other to close and clamp the flexible elastic pipe 34, so that the powder flowing down the flexible elastic pipe 34 does not leak at all. Intermittent quantitative discharge of the body can always be performed smoothly and reliably.

  Therefore, in the present invention, as shown in FIGS. 6A, 6B, 6C, and 6D, various modifications can be made to the configuration of the pair of opening and closing plates 52 and 54 and the one side edge portions 52a and 54a facing each other. Implementation is possible.

  That is, as shown in FIG. 6A, the opposite side edges 52a and 54a of the opening and closing plates 52 and 54 are formed in a wedge shape that is upside down (see (a) of FIG. 6A), At the time of closing and sandwiching, the wedge-shaped portions of the opposing one side edge portions 52a and 54a can be engaged with each other vertically (see FIG. 6A (b)).

  Moreover, as shown to FIG. 6B, the one side edge parts 52a and 54a which the opening-and-closing plates 52 and 54 oppose are formed in the step-like shape of an upside down direction (refer (a) of FIG. 6B), and flexible elastic piping When the 34 is closed and clamped, the stepped portions of the one side edge portions 52a and 54a facing each other can be engaged with each other vertically (see FIG. 6B (b)).

  Further, as shown in FIG. 6C, the opposing side edges 52a, 54a of the opening / closing plates 52, 54 are arranged with the front end surfaces having a quadrangular section in the upper and lower steps (see FIG. 6C (a)), and flexible. When the elastic pipe 34 is closed and clamped, the opposite end surfaces 52a and 54a of the opposing side edges 52a and 54a may intersect vertically (see FIG. 6C (b)).

  Furthermore, as shown in FIG. 6D, the opposing side edges 52a, 54a of the open / close plates 52, 54 are arranged with circular cross-sectional tips on the top and bottom (see FIG. 6D (a)), and flexible. When the elastic pipe 34 is closed and sandwiched, the ends of the opposing one side edge portions 52a and 54a may intersect vertically (see FIG. 6D (b)).

  Further, in the present invention, FIG. 7 shows a case where the flexible elastic pipe 34 is closed and sandwiched by the pair of opening and closing plates 52 and 54 having the above-described configuration by the opening and closing drive arms 53 and 54 as gate driving means. It is. In this case, on the side surface of the flexible elastic pipe 34 where the opposing one side edges 52a, 54a of the open / close plates 52, 54 contact each other, the flexible elastic pipe 34 is simultaneously with the contact of the one side edges 52a, 54a. However, it is preferable to reinforce and shape the side surface of the flexible elastic pipe 34 so as to be in an appropriate bent state along the one side edge portions 52a and 54a.

  Accordingly, in FIG. 7, corresponding to the portion where the one side edge portions 52 a and 54 a of the pair of opening and closing plates 52 and 54 are in contact with the outer surface of the flexible elastic pipe 34, FIG. As shown to a), the reinforcement shaping member 60 which consists of a pair of flexible elastic strips 61a and 61b is stuck. With this configuration, when the one side edge portions 52a and 54a of the open / close plates 52 and 54 that are opposed to the outer surface of the flexible elastic pipe 34 are brought into contact with each other as shown in FIG. As shown, the flexible elastic pipe 34 can be properly bent along the one side edges 52a and 54a, and at the same time, reinforcement against wear at the bent portion of the flexible elastic pipe 34 is achieved. be able to.

  Therefore, in the present invention, as shown in FIGS. 8A to 8D, various modifications can be made to the means for reinforcing and shaping the side surface of the flexible elastic pipe 34.

  That is, (a) of FIG. 8 shows a pair of possible portions corresponding to the portion where the opposing side edge portions 52a and 54a of the pair of opening and closing plates 52 and 54 abut on the outer surface of the flexible elastic pipe 34, respectively. A reinforcing shaping member 60 composed of flexural elastic bands 61a and 61b is attached.

  FIG. 8B shows a pair of flexible elastics corresponding to the portions of the outer side surfaces of the flexible elastic piping 34 that contact the side edges 52a and 54a facing each other of the pair of opening and closing plates 52 and 54, respectively. A reinforcing shaping member 60 provided with a plurality of string bodies 62a, 62b in the vertical direction is attached.

  FIG. 8 (c) shows the flexible elastic pipe corresponding to the portion of the outer side surface of the flexible elastic pipe 34 where the opposite side edges 52a and 54a of the pair of opening and closing plates 52 and 54 abut each other. 34. A reinforcing shaping member 60 comprising a flexible elastic band 63 that surrounds 34 and provided with a notch hole 63a having an arbitrary shape at the position of the flexible elastic band 63 where the one side edges 52a and 54a intersect each other. Attached.

  FIG. 8D shows the flexible elastic pipe corresponding to the portion where the opposing side edges 52a and 54a of the pair of opening and closing plates 52 and 54 abut on the outer surface of the flexible elastic pipe 34, respectively. Reinforcement comprising a relatively thick flexible elastic band 64 that surrounds 34, and a cut groove 64a having an arbitrary shape is provided at the position of the flexible elastic band 64 where the one side edges 52a and 54a intersect each other. The shaping member 60 is pasted.

  FIG. 8E shows a flexible elastic pipe 34 ′ having a relatively thick thickness, and the flexible elastic pipe 34 ′ intersecting the one side edge portions 52 a and 54 a. Are provided with cut grooves 65a and 65b each having a required width.

  The preferred embodiments of the present invention have been described above, but the present invention is not limited to the above-described embodiments, and many design changes can be made without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 10 Hopper 12 Top cover plate 14 Powder inlet 16 Air vent 18 Bottom opening 20 1st flexible elastic piping 21a Piping fastener 21b Piping fastener 22 Inclined perforated plate 23 Annular support member 24 Through hole 25 Perforated plate 26 Hopper Strut 30 Funnel-shaped chute piping 31a Upper end opening 31b Lower end opening 32 Vibration imparting electric motor 34 Second flexible elastic piping 36 Discharge port piping 40 Hopper support base 42 Vibration isolator 44 Support frame body 46 Cover plate 48 Fixing bracket 50 Gate means 52, 54 Open / close plates 52a, 54a Side edges 53, 55 Open / close drive arm 56 Gate drive means 60 Reinforcement shaping members 61a, 61b Flexible elastic band 62a, 62b Flexible elastic string 63 Flexible elastic band 63a Notch hole 64 Thick flexible elastic band 64a Notch groove 65a, 65b Notch groove

Claims (5)

The powder is stored in a hopper, and the stored powder is allowed to flow smoothly by providing vibration imparting means capable of adjusting the dispersibility and fluidity of the powder at the bottom of the hopper. It consists of a powder supply device that provides a flexible elastic pipe with an opening and closing means for opening and closing a body passage and intermittently discharges powder.
A funnel-shaped chute pipe is connected to the bottom opening of the hopper via an inclined perforated plate inclined at a predetermined angle with respect to a horizontal plane,
The chute pipe is supported by a support frame provided with vibration applying means, and the dispersibility and fluidity of the powder flowing down by the vibration applying means together with the inclined perforated plate are adjusted appropriately. Configure
In addition, a flexible elastic pipe is connected to the lower end opening of the chute pipe, and gate means is provided in which a pair of opening and closing plates that are close to and away from each other with respect to the outer surface of the flexible elastic pipe. A powder supply device characterized in that the powder is discharged intermittently and quantitatively and discharged.   The inclined perforated plate is a perforated plate in which an annular support member that engages with an upper end opening of the funnel-shaped chute pipe is inclined at a predetermined angle with respect to a horizontal plane and a plurality of through holes having a required opening ratio are formed. 2. The powder supply apparatus according to claim 1, comprising a supported structure.   The funnel-shaped chute pipe in which the inclined perforated plate is disposed is supported by a support frame body in which a vibration imparting electric motor is disposed, and the upper end opening of the funnel-shaped chute pipe is provided at the center of the cover plate covering the upper part of the support frame body 2. The powder supply device according to claim 1, wherein the powder supply device is configured to engage and dispose the portions.   The gate means is constructed and arranged such that one side edge portion of each of a pair of opposingly arranged opening and closing plates that approach and separate from each other with respect to the flexible elastic pipe intersects with each other or intersects with each other. The powder supply apparatus according to claim 1.   The flexible elastic pipe provided with the gate means is configured to bend and shape the flexible elastic pipe appropriately with respect to a side surface where one side edge portions of a pair of opposedly arranged opening and closing plates that come close to and away from each other come into contact with each other. The powder supply device according to claim 1, wherein the powder supply device has a reinforcing structure.

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