JP3290527B2 - Adhered powder removal device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for removing adhered powder, and more particularly, to a mechanism for quantifying powder supplied from a hopper in a quantitative container and then supplying a fixed amount of powder to a receiver. The present invention relates to an attached powder removing device capable of effectively preventing powder stored in a vessel from being contaminated by powder collected last time.

[0002]

2. Description of the Related Art Conventionally, in various powder manufacturing processes such as toner, polymer and food powder such as flour, for example, the particle size distribution It is necessary to measure the molecular weight of the polymer as the powder, the content of foreign substances present in the powder, and the like. Usually, a powder is collected from a powder distribution pipe in a powder production process, and the powder is further adjusted to a predetermined amount of powder by a quantitative container, and then provided to various measuring means or measuring methods.

In this case, a major problem is that the powder has a chargeability. That is, even if any powder has the charging property, the powder adheres to, for example, a hopper, a measuring container, or peripheral devices thereof. As a result, powder collected for the purpose of various kinds of analysis or measurement is mixed with the previously collected powder in a container for accommodating the powder.
If the powder collected this time is provided for various analysis or measurement while the powder collected last time is mixed, errors occur in the analysis or measurement of the powder collected this time, and accurate analysis or measurement can be performed. Disappears.

The inventor of the present invention has devised an automatic powder collecting apparatus capable of collecting a fixed amount of powder and storing a fixed amount of powder in a receiver.

[0005] The automatic powder collecting apparatus includes a hopper having an upper opening and a lower opening, and a sufficient gap just below the lower opening of the hopper to dispose a scraping member from the lower opening. It has a metering container provided with an upper opening and a lower opening that can be opened and closed, and a receiver that can be arranged directly below the lower opening.
In this automatic powder sampling apparatus, powder is introduced into the hopper from the upper opening of the hopper. In this case, the introduction of the powder can be performed manually, but usually, a robot arm holding the container containing the powder transports the container to the upper opening of the hopper, and then moves the upper part of the hopper. The powder in the container is thrown into the hopper by overturning the container above the opening. The powder introduced into the hopper falls into the metering container from the lower opening of the hopper. In a normal case, since the amount of powder that is larger than the internal volume of the metering container is dropped, the powder is heaped at the upper opening of the metering container. Therefore, the powder is scraped off at the upper opening of the fixed quantity container by the scraping means. By this abrasion operation, the volume of the powder is adjusted to a volume equal to the internal volume of the quantitative container. Then, by opening the lower opening of the fixed quantity container, the fixed quantity powder in the fixed quantity container is dropped into a receiver.

[0006] In this manner, a fixed amount of powder can be automatically collected in a receiver. In this automatic powder collecting apparatus, the powder is dropped from a hopper into a fixed amount container, and the powder is collected. Even when the powder is dropped from the container to the receiver, the charged powder adheres to the inner wall of the hopper and the inner wall of the quantitative container, and in some cases, the powder adheres to the outer periphery of the quantitative container. There is a problem that the powder to be collected is contaminated with the powder to be collected the previous time because the powder attached to the powder is mixed with the powder to be collected next.

The present invention has been completed based on the above circumstances.

That is, an object of the present invention is to provide an attached powder removing apparatus capable of removing powder from a wall surface of a member having a wall surface to which charged powder is attached.

Another object of the present invention is to provide an attached powder removing device capable of efficiently removing the powder attached to the inner wall surface of a member for dropping the powder contained therein. .

[0010]

According to a first aspect of the present invention, there is provided a hopper having an upper opening and a lower opening, the lower opening being provided directly below the lower opening. A predetermined interval is provided immediately below the lower opening of the fixed amount container having the upper opening and the lower opening that can be opened and closed, where it is arranged with an interval sufficient to arrange the scraping member from An exhaust duct having a suction opening, which is disposed, and a lower opening corresponding to the suction opening of the exhaust duct, the lower opening being movable between the evacuation duct and the quantitative container from the retracted position. 3. A device for removing adhered powder, comprising a high-speed suction airflow forming means having an upper opening corresponding to the lower opening. The invention according to claim 2 , wherein the wall surface to which the powder adheres is provided. Immediately below the member having An exhaust duct having a suction opening, which is disposed at a fixed interval, and is movable between the exhaust duct and the quantitative container from a retracted position, and corresponds to the suction opening of the exhaust duct. And a high-speed suction airflow forming means having an upper opening corresponding to the lower opening.

[0011]

[0012]

[0013]

[0014]

[0015]

[0016]

According to the first aspect of the present invention, when the powder is introduced into the receiver from the lower opening of the fixed quantity container through the hopper and the fixed quantity container, the high-speed suction airflow forming means is connected to the fixed quantity container. It is retracted to an appropriate position retracted from between the suction opening of the exhaust duct. When the powder is completely charged into the receiver, the high-speed suction airflow forming means is arranged between the constant volume container and the exhaust duct from the retracted position. In this state, the upper opening of the high-speed suction airflow forming means is located directly below and facing the lower opening of the quantitative container, and the lower opening of the high-speed suction airflow forming means covers the suction opening of the exhaust duct. When the air in the high-speed suction airflow forming means is forcibly exhausted from the exhaust duct, the air in the hopper and the quantitative container is also forcibly exhausted from the upper opening. The powder that is generated and adheres to the inner wall is guided by the high-speed airflow to remove the powder from the inner wall. The powder guided by the high-speed airflow is sucked into the high-speed suction airflow forming means and discharged. Note that by forcibly exhausting the inside of the high-speed suction airflow forming means, air outside the high-speed suction airflow forming means is sucked into the inside from the upper opening. As a result, the powder adhering to the outer peripheral surface of the fixed quantity container is also removed by being guided by the high-speed airflow.

[0017] The deposited powder removing device having a structure according to claim 2, between the exhaust duct having an opening to be opened in its downwardly member to adhere the powder to be removed, from said retracted position A high-speed suction airflow forming means movable between an exhaust duct and the fixed volume container and having a lower opening corresponding to a suction opening of the exhaust duct and an upper opening corresponding to the lower opening; By exhausting the air strongly by the exhaust duct, the powder adhering to the member is removed by the high-speed airflow sucked from the upper opening.

[0018]

[Example] (Example 1)

As shown in FIGS. 1 and 2, the attached powder removing apparatus 1 according to one embodiment of the present invention has a support base 2, a support plate 3, a housing 4, and an exhaust duct 5.

The support base 2 is disposed horizontally. On the upper surface of the support base 2, a housing moving means for horizontally moving the housing 4, for example, an air cylinder 6, is inserted into the air cylinder 6, and can be moved back and forth by high-pressure air. A rod 7 coupled and supporting the housing 4 is arranged.

As shown in FIG. 3, the housing 4 comprises a pair of side plates 4a opposed to each other, a top plate 4b bridged over the upper ends of the side plates 4a, the side plates 4a, 4a and 4b. And a back plate 4c connected to an edge of the back plate 4c.
And a bottom portion corresponding to the top plate 4b is opened, and an airflow passage 8 is opened in the top plate 4b. In this specification, a front portion of the housing 4 corresponding to the back plate 4c is referred to as a front opening 4d, and a bottom portion corresponding to the top plate 4b is a bottom opening 4e.
Called.

The housing 4 has the rod 7 connected to the back plate 4c and is suspended by the rod 7. That is, the lower end of the side plate 4 a and the lower end of the back plate 4 c of the housing 4 supported by the rod 7 are located above the upper surface of the support base 2 with a slight gap. Although not shown in FIG. 3, the housing 4 has a flexible member such as a rubber skirt member 9 attached to the lower ends of the side plates 4a and the back plate 4c as shown in FIG. . As will be described later, the skirt member 9 has a function of preventing air from entering the housing 4 through the gap when the air in the housing 4 is forcibly exhausted by the exhaust duct 5. In other words, when the air in the housing 4 is forcibly exhausted by the exhaust duct 5, various materials and configurations may be used as long as the members can prevent the air from entering the housing 4 through the gap. The skirt member 9 can be formed. However,
If the lower end surface of the housing 4 slides and moves on the upper surface of the support base 2, if air leakage from the gap between the lower end surface of the housing 4 and the upper surface of the support base 2 does not matter. The skirt member 9 does not need to be provided.

The opening position of the airflow passage 8 in the upper surface plate 4b of the housing 4 will be described later.

The housing 4 is moved forward and backward by the rod 7. If the housing 4 is to be moved forward and backward more reliably, a guide member for guiding the housing 4 forward and backward, for example, a guide It is preferable to provide a rail or the like on the support base 2.

The support plate 3 is on the support base 2,
It is arranged upright to face the front opening 4 d of the housing 4. When the housing 4 is advanced, the front opening 4d of the housing 4 is
It is adjusted so that it touches the surface. This support plate 3
Is the width of the front opening 4d of the housing 4 that has been advanced.
Has a sufficient dimension to close the front opening 4d of the advanced housing 4 so that the support plate 3 can close the front opening 4d.

A funnel-shaped hopper 13 having an upper opening 11 and a lower opening 12 is supported on a surface of the support plate 3 facing the housing 4 via a support member 10a. Immediately below the opening 12, at a predetermined distance from the lower opening 12,
4 are supported via the support member 10b.

As shown in FIG. 4, the metering container 14 has an upper opening 15 that opens upward and a lower opening 16 that opens downward, and from the upper opening 15 toward the lower opening 16. It has a powder container 17 having an internal shape formed in an inverted conical shape, and above the lower opening 16,
The shielding plate 18 is detachably mounted. This shielding plate 18
Has a through hole 19. By moving the shielding plate 18 horizontally, the through holes 19 are
7, the powder in the powder storage unit 17 is
6 and the through-hole 19 is retracted from the powder container 17 so that the shielding plate 18 is at the bottom of the powder container 17.
It is driven by appropriate driving means such as an air cylinder and its rod. Therefore, this container 14
Has a lower opening 16 that can be opened and closed by providing the shielding plate 18.

However, the lower opening 16 that can be opened and closed can be realized by combining other members without providing the shielding plate 18. For example, as shown in FIG.
The rotating rod 21 having a through-hole 20 having the same diameter as the horizontal cross section in the internal shape of the quantitative container 14
4 through the lower portion of the intermediate portion of the container 4, and by rotating the rotary rod 21, the through-hole 20 is opened in the powder container 17 of the container 14 to allow the powder in the container 14 to pass through the lower opening 16. When the through-hole 20 deviates from the powder container 17 which is the internal space of the quantitative container 14 by dropping and rotating the rotating rod 21, the powder in the quantitative container 14 cannot drop from the lower opening 16. You may do it. A rotatable rotating rod 2 having such a through hole 20
1, the lower opening 16 which can be opened and closed.
It can be.

As shown in FIG. 4, a scraping member 22 is disposed near the upper opening 15 of the fixed amount container 14. In this embodiment, the scraping member 22 includes a roller 23 having a length equal to or longer than the diameter of the upper opening 15 and a shaft center of the roller 23 rotatably and rotatably. And a roller support 24 that supports the roller 23 so that the roller 23 can move up and down, and that can move forward and backward so that the roller 23 can roll the upper opening 15. The scraping member 22 scrapes off the powder that is in a heaped state at the upper opening 15 of the fixed amount container 14 by the rollers 23 rolling on the upper opening 15.

In this embodiment, the scraping member 22 includes the roller 23 and the roller support 24.
The structure 2 is not limited to the structure shown in the above embodiment as long as the structure can wipe off the powder at the upper opening 15 of the fixed amount container 14. In the present invention, the scraping member 22 may be constituted by a doctor knife or the like which can move forward and backward horizontally by a suitable driving means.

As shown in FIG. 1, an opening 25 of the exhaust duct 5 is opened below the quantitative container 14 on the support base 2.

The exhaust duct 5 is connected to a powerful exhaust fan (not shown) via a pipe.

As shown in FIG. 1, in the suction opening 25 of the exhaust duct 5, a mounting table 26 having a mounting surface located slightly below the upper surface of the support base 2 as an initial position.
Are supported by the support member 27 so as to be able to move up and down.
The support member 27 extends downward from the lower surface of the mounting table 26, is then bent at a right angle, and is bent and then extends horizontally. Extends outside the A horizontal support member 27 extending outside the exhaust duct 5 is connected to a lower end of a vertically movable rod 29 of a driving means, for example, an air cylinder 28 held by the support plate 3.

On the upper surface of the mounting table 26, there is placed a receiver 30 for receiving the powder falling from the fixed quantity container 14 and accommodating the powder. A positioning member 31 is provided on the upper surface of the mounting table 26 such that the opening of the receiver mounted on the mounting table 26 is located immediately below the lower opening 16 of the fixed quantity container 14.

The space between the mounting surface of the mounting table 26 in the initial position and the lower opening 16 of the fixed amount container 14 is secured to a sufficient space so as not to hinder the placement of the receiver on the mounting table 26. Adjusted to be

The mounting table 26 can be raised upward from its initial position by driving the rod 29 in the air cylinder 28. The stop position of the mounting table 26 that has risen is a position where the opening of the receiver 30 mounted on the mounting table 26 approaches the lower opening 16 of the quantitative container 14.

Next, the operation of the attached powder removing apparatus 1 having the above-described configuration will be described.

Normally, when a fixed amount of powder is stored in the receiver 30, the following operation is performed.

As shown in FIG. 1, the receiver 30 is mounted on the mounting table 26 at the initial position. Placement of this receiver 30
This can be performed by a gripping device of a handling robot (not shown).

The gripping device of this handling robot can grip the receiver, rests the gripped receiver on the mounting table 26, places the receiver on the mounting table 26, and then transfers it to another department. A person skilled in the art can appropriately design the structure so that the structure can be retracted.

When the receiver 30 is mounted on the mounting table 26,
The mounting table 26 is driven by the driving of the air cylinder 28.
As shown in FIG. 4, as shown in FIG. 4, when the opening of the receiver 30 is located very near the lower opening 16 of the fixed quantity container 14, the lifting of the mounting table 26 stops.

In the fixed quantity container 14, the shielding plate 18 horizontally blocks the internal space of the fixed quantity container 14 between the upper part and the lower part.

The powder contained in the transport container gripped by another handling robot (not shown) is thrown into the hopper 13 from the upper opening of the hopper 13 by the operation of the handling robot.

The handling robot grasps the transport container containing the powder and tilts or falls the transport container above the upper opening 11 of the hopper 13 to transfer the powder in the container into the hopper 13. Any structure that can be dropped can be appropriately designed, and such a structure can be easily devised by those skilled in the art.

The charged powder falls from the lower opening 12 of the hopper 13 into the upper opening 15 of the metering container 14. Since the amount of the dropped powder is usually adjusted to a volume larger than the internal volume of the fixed quantity container 14, the powder stored in the fixed quantity container 14 is piled up from the upper opening 15 of the fixed quantity container 14. It is in a state of being left. Next, the roller 23 is moved to the upper opening 15 by driving the scraping device.
The upper part is rolled, whereby the powder piled up on the upper opening 15 is scraped off. By this abrasion operation, the upper surface of the powder coincides with the upper opening 15.

Next, the shielding plate 18 is moved horizontally so that the through-holes 19 coincide with the internal space of the quantitative container 14. The powder falls from the lower opening 16 into the receiver 30.

When a certain amount of powder is stored in the receiver 30, the air cylinder 6 is driven to drive the mounting table 2.
6 descends and returns to the initial position. When the mounting table 26 returns to the initial position, the gripping device of the handling robot (not shown) grips the receiver 30, and the receiver 3 containing the powder is transferred from the mounting table 26.
Remove 0.

By the above operation, a predetermined amount of powder is
The powder is adhered to the inner wall of the hopper 13 and the inner wall of the fixed amount container 14 by, for example, static electricity or the like. When a fixed amount of powder is stored in a new receiver 30 by the next operation, it is necessary to remove the powder attached to the inner walls of the hopper 13 and the fixed amount container 14. If the powder adhered by the previous operation,
This is because if the next powder is accommodated in the receiver 30 by the same operation, the powder collected last time will be mixed into the next powder.

Therefore, in the attached powder removing device 1, the housing 4 moves forward by driving the air cylinder 6 as the housing moving means. When the ends of the pair of side plates 4a and upper surface plate 4b of the housing 4 come into close contact with the support plate 3, the housing 4 stops moving forward. When the forward movement of the housing 4 is stopped, the front opening 4 d of the housing 4 is
It is in a state of being closed by. Also, this case 4
And the support plate 3 form an internal closed space. The hopper 13 and the metering container 14 are accommodated in the internal closed space. The airflow passage 8 provided in the upper surface plate 4 b of the housing 4 is located immediately above the upper opening 11 of the hopper 13. In other words, the airflow passage 8 provided in the upper surface plate 4b of the housing 4 is directly above the upper opening 11 of the hopper 13 when the housing 4 and the support plate 3 form an internal closed space. It is set up in a location.

Next, by driving the powerful exhaust fan, the air in the internal closed space is exhausted strongly from the suction opening 25 of the exhaust duct 5.

As shown in FIG. 6, when the air is exhausted, the air outside the housing 4 flows into the housing 4 through the airflow passage 8. The airflow passage 8 is located directly above the upper opening 11 of the hopper 13, and the upper opening 15 of the quantitative container 14 is located immediately below the lower opening 12 of the hopper 13, so that the airflow passes through the airflow passage 8. The air becomes a high-speed airflow, passes through the inner wall of the hopper 13 and the inner wall of the quantitative container 14, exits from the lower opening 16 of the quantitative container 14, and in some cases, flows in from the airflow passage 8. The air in the housing 4 is caught in the high-speed airflow and flows into the upper opening 11 of the hopper 13 at a high speed.
The air in the housing 4 is caught in the high-speed airflow from the gap between the lower opening 12 and the upper opening 15 of the quantitative container 14 and flows into the upper opening 15 of the quantitative container 14 at high speed.

By the high-speed airflow thus formed, the powder adhering to the inner wall of the hopper 13 and the inner wall of the metering container 14 is guided by the high-speed airflow and removed from the inner wall. The powder removed from the inner wall is discharged from the exhaust duct 5 together with the airflow.

After the operation for removing the adhering powder is continued for a predetermined time, the driving of the powerful exhaust fan is stopped. The air cylinder 6 as a housing moving means is driven to retract the housing 4 and return the housing 4 to the initial position.

In other words, the apparatus for removing adhered powder having the above-described structure, which is an embodiment of the present invention, has a wall surface on which powder adheres, and accommodates a member that needs to remove powder from the wall surface. Having a housing capable of forming a high-speed airflow along the wall surface thereof and an exhaust means capable of exhausting the inside of the housing from the bottom of an internal closed space formed by the housing. Can be grasped.

In the apparatus for removing adhering powder from such a viewpoint, a member having a wall surface on which the powder adheres, and a member for which the powder needs to be removed from the wall surface, includes a hopper 13 and a constant volume container 14. It is. In the above-described embodiment, the housing capable of forming a high-speed airflow is the housing 4 having the airflow passage 8 on the upper end surface.

In the above embodiment, the internal closed space is
It is formed of a housing 4, a support base 2, and a support plate 3.

In the apparatus of the embodiment shown in FIG. 1, the housing 4 moves horizontally on the support base 2 from its initial position, and then the support plate 3 is attached to the front opening 4 d of the housing 4.
Is closed, an internal closed space is formed by the housing 4, the support plate 3, and the support base 2. In order to form the internal closed space, the housing 4 must move horizontally from the initial position. You don't have to. For example, in FIG. 1, the housing 4 is disposed above the hopper 13 and at a position provided with a sufficient interval so as not to hinder the operation of charging the powder into the hopper 13. Even if the position is set as the initial position and the position is lowered toward the support base 2 from the initial position, an internal closed space can be formed as a result.

In the apparatus of the embodiment shown in FIG. 1, the internal closed space formed by the housing 4 is formed by the housing 4, the support base 2 and the support plate 3, and the internal closed space is formed by the internal closed space. It is not limited to being formed in such a manner.

For example, the housing may be formed of a front plate, a back plate, a pair of side plates and a top plate, and may have a structure having an opening below. In the case of a housing having such a structure, the hopper 13 and the fixed amount container 14 are each supported vertically in a row on a narrow column (not shown), which hinders the operation of charging the powder into the hopper 13. A housing is provided above the hopper 13 with a space provided so as not to come, and the position is set as the initial position of the housing. Then, the housing is lowered from the initial position, and the support, the hopper 13 and the entire quantitative container 14 are housed in the housing 4 so that the housing 4 and the support base 2 form an internal closed space. Is also good. In this case, the support base 2 becomes the bottom in the internal closed space, and the opening of the exhaust duct 5 is opened at the bottom. Further, an airflow passage may be provided in the upper surface plate of the housing, or an airflow ejection device described later may be provided.

The air flow passage provided in the top plate of the housing is
The number of holes is not limited to one, and may be a plurality of small holes provided so as to form a high-speed airflow.

In the embodiment shown in FIG. 1, the housing 4 capable of forming a high-speed airflow has a top plate 4
Although the airflow passage 8 is formed in b, it is not necessary to use such an airflow passage 8 to form a high-speed airflow. For example, when a member having a wall surface to which powder adheres, such as a hopper 13 or the hopper 13 and the fixed amount container 14 are housed in the housing 4 to form an internal closed space, the wall surface of the member to which powder adheres A high-speed airflow can also be formed by providing an airflow ejection device that ejects an airflow toward the airflow.

In the attached powder removing apparatus described above,
The housing capable of forming the high-speed airflow removes not only the inner wall of the hopper and the inner wall of the metering device, but also the powder adhering to the outer wall or outer periphery of the hopper and the outer wall or outer circumference of the metering device.

(Example 2) The attached powder removing apparatus described in this example is an embodiment of the invention having the structure described in claim 1 of the present application.

The difference between the attached powder removing device shown in FIG. 7 and the attached powder removing device shown in FIG. A high-speed suction airflow forming means is provided instead of the movable housing.

The high-speed suction airflow forming means is provided on the support base 2.
The lower opening 51 which is substantially the same as or larger than the suction opening 25 of the exhaust duct 5 and the upper opening which is substantially the same as or slightly larger than the lower opening 16 of the metering container 14. An inverted funnel-shaped hood 53 comprising
The hood 53 includes a hood driving device capable of moving the hood 53 back and forth to a position immediately above the suction opening 25 of the exhaust duct 5 and a position retracted therefrom, for example, an air cylinder 6 and a rod 7 for supporting the hood 53.

The hopper 13 is removed by the attached powder removing device.
And when removing powder adhering to the fixed amount container 14,
The hood 53 is advanced by the hood driving device so as to cover the opening of the exhaust duct 5, and the suction opening 25 of the exhaust duct 5 is covered with the hood 53. When the air is strongly sucked and exhausted through the exhaust duct 5, the air is sucked into the hood 53 from the upper opening 52 at a high speed. High-speed suction of air into the hood 53 from the upper opening 52 allows the upper opening 52 of the hood 53 to be sucked.
The high-speed air flow also flows through the internal space of the quantitative container 14 that continues upward from the lower opening 16 of the quantitative container 14 that faces directly above, and the vertical space that is continuous with the internal space of the hopper 13.
By this high-speed airflow, the powder adhering to the inner wall of the hopper 13 and the inner wall of the metering container 14 is guided and removed.

The apparatus for removing adhered powder shown in FIG. 7 is also an embodiment of the invention having the structure described in claim 2 of the present application.

That is, the members to which the powder adheres are the hopper and the metering container.

[0069] Between the exhaust duct with claim 2 deposited powder removing apparatus having the structure described, the opening is opened and its lower member to adhere the powder to be removed, from said retracted position A high-speed suction airflow forming means movable between an exhaust duct and the fixed volume container and having a lower opening corresponding to a suction opening of the exhaust duct and an upper opening corresponding to the lower opening; By exhausting the air strongly by the exhaust duct, the powder adhering to the member is removed by the high-speed airflow sucked from the upper opening.

[0070]

According to the present invention, a member to which powder to be removed is adhered, such as a hopper and a high-speed airflow along the vessel wall of the metering vessel, are formed, and the powder attached to the vessel wall is guided and removed by the high-speed airflow. Therefore, the powder can be efficiently removed from the member.

[Brief description of the drawings]

FIG. 1 is a schematic explanatory view showing a side surface of an attached powder removing apparatus according to one embodiment of the present invention.

FIG. 2 is a schematic explanatory view showing a plan view of an attached powder removing apparatus according to one embodiment of the present invention.

FIG. 3 is a perspective view showing a housing used in the attached powder removing device according to one embodiment of the present invention.

FIG. 4 is a schematic explanatory diagram for explaining an arrangement relationship among a hopper, a scraping device, a constant volume container, a receiver, and a mounting table in the attached powder removing device according to one embodiment of the present invention. In this explanatory diagram, a part of the quantitative container is notched, and a cross section thereof appears.

FIG. 5 is a partially cutaway explanatory view showing another embodiment of the metering container.

FIG. 6 shows an attached powder removing apparatus according to one embodiment of the present invention, which attaches to a hopper and a fixed amount container housed in an internal closed space formed by a housing, a support plate, and a support base. FIG. 4 is an explanatory diagram for explaining an action of removing powder by a high-speed airflow.

FIG. 7 is a schematic explanatory view showing a side surface of an attached powder removing apparatus according to another embodiment of the present invention.

[Explanation of symbols]

1 ... adhered powder removal device, 2 ... support base, 3 ...
.Support plate, 4... Housing, 4a... Side plate, 4b.
・ Top plate, 4c ・ ・ ・ Back plate, 4d ・ ・ ・ Front opening,
4e: bottom opening, 5: exhaust duct, 6:
Air cylinder, 7: rod, 8: air flow passage, 9: skirt member, 10a: support member, 1
1 ... upper opening, 12 ... lower opening, 13 ...
・ Hopper, 14 ・ ・ ・ quantitative container, 15 ・ ・ ・ upper opening, 16 ・ ・ ・ lower opening, 17 ・ ・ ・ powder container, 1
8 ... shielding plate, 19 ... through hole, 20 ... through hole, 21 ... rotating rod, 22 ... scraping member, 23
... Roller, 24 ... Roller support, 25 ... Suction opening, 26 ... Placement table, 27 ... Support member, 2
8 ・ ・ ・ Air cylinder, 29 ・ ・ ・ Rod, 30 ・
..Receiver, 51 ... lower opening, 52 ... upper opening,
53 ... food.

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Masaaki Suzuki 2-16-2 Noguchicho, Higashimurayama-shi, Tokyo Nikkiso Co., Ltd. Higashimurayama Works (72) Inventor Keisuke Kato 2-16- Noguchicho, Higashimurayama-shi, Tokyo 2 Nikkiso Co., Ltd. Higashimurayama Works (72) Inventor Masanori Niyama 2-16-2 Noguchicho, Higashimurayama-shi, Tokyo Nikkiso Co., Ltd. (72) Yoshihisa Hiraguri 2-Noguchicho, Higashimurayama-shi, Tokyo 16-2 Nikkiso Co., Ltd. Higashimurayama Works (56) References JP-A-52-137162 (JP, A) JP-A-60-100082 (JP, U) JP-A-49-97001 (JP, U) ( 58) Field surveyed (Int.Cl. ⁷ , DB name) B08B 5/02 B65G 53/40 B65G 65/40

Claims (2)

(57) [Claims] An upper portion of a hopper having an upper opening and a lower opening, wherein the hopper is disposed immediately below the lower opening with a sufficient interval for disposing a scraping member from the lower opening. An exhaust duct having a suction opening, which is disposed immediately below the lower opening of the fixed amount container having an opening and a lower opening that can be opened and closed, and an exhaust duct having a suction opening; A high-speed suction airflow forming means movable between a duct and the fixed amount container and having a lower opening corresponding to the suction opening of the exhaust duct and an upper opening corresponding to the lower opening. An apparatus for removing adhered powder, comprising: 2. An exhaust duct having a suction opening, which is disposed immediately below a member having a wall surface to which powder adheres at a predetermined interval, and the exhaust duct and the quantitative container from a retracted position. And a high-speed suction airflow forming means having a lower opening corresponding to the suction opening of the exhaust duct and an upper opening corresponding to the lower opening. To remove attached powder.