JPH06174607A - Leveling device - Google Patents

Abstract

PURPOSE:To form an exact leveling surface by rolling a roller supported at the shaft movably up and down on the opening of a vessel containing powder. CONSTITUTION:A controller controls a drive means and forwards a support part 7a. Due to the forwarding of the part 7a, a free roller 7f proceeds to the opening of the vessel 3 and forwards horizontally. Even if the circumference bottom of the roller 7f positions slightly lower than the opening of the vessel 3 in the direction of horizontal movement of the roller 7f, the circumference of the roller 7f touches the opening end of the vessel 3 and smoothly overrides the opening end of the vessel 3 because the shaft 7e of the roller 7f is supported movably up and down to the part 7a. By forwarding the part 7a further, the roller 7f rolls on the open end of the vessel and the powder 17 full measure of the vessel 3 is leveled to the top. By this, the excess of the powder contained on the vessel can be exactly leveled.

Description

Detailed Description of the Invention

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scraping device.

2. Description of the Related Art Conventionally, the problems to be solved by the invention
When collecting a predetermined amount of powder, for example, an operator collects powder with a measuring cup, and among the powder collected with the measuring cup, excess powder that is heaped up from the opening of the measuring cup. Is scraped off and then the measuring cup with the powder is weighed to obtain the correct amount of powder.
In order to scrape off the piled powder, a plate-shaped or edge-shaped scraping plate has hitherto been slid on the opening of the measuring cup. However, such a scraping operation could not accurately scrape and remove the excess powder from the measuring cup. For example, the scraping plate often floated up without accurately sliding on the opening of the measuring cup. Above all, when the operator performs the above-mentioned scraping operation, there are problems that the operator becomes powder coated and the scattered powder is sucked to impair health. The present invention has been completed based on the above circumstances. That is, the object of the present invention is to efficiently and accurately remove the surplus powder rising from the opening of the receiver among the powders supplied to the receiver, and to automatically remove it regardless of the operator. An object of the present invention is to provide a scraping device that can perform a scraping operation.

According to a first aspect of the present invention for solving the above-mentioned problems, a roller which rolls on an opening of a receiver containing powder and a vertical axis of the roller are moved. A scraping device comprising: a supporting member for supporting the roller so as to be capable of rolling. The invention according to claim 2 rolls on an opening of a receiver containing powder. Roller, a first support member that supports the roller so that the axis of the roller can move up and down, and a second support member that rotatably supports the first support member. It is a scraping device,

In the scraping device according to the first aspect, since the roller is supported by the supporting member so that the axis of the horizontal roller can move up and down, the roller is advanced toward the opening end of the receiver. Even if the circumferential surface of the roller comes into contact with the opening end of the receiver for the first time, the roller can move upward so that the roller can ride on the opening end of the receiver. In other words, even if the upper end opening surface of the receiver and the lower end portion of the peripheral surface of the roller are not flush with each other, that is, there is a slight misalignment, the roller smoothly advances on the opening end of the receiver. can do. Moreover, since the roller rolling on the opening end of the receiver is supported by the support member so as to be vertically movable, the contact between the opening end of the receiver and the roller is stable, and the scraped surface of the powder is The phenomenon of waviness is prevented. Further, according to the scraping device of the first aspect, even if the receiver vibrates due to the roller rolling on the opening end of the receiver, the amount of powder contained in the receiver is reduced. It does not fluctuate. Also in the scraping device according to claim 2, since the axis of the horizontal roller can be moved up and down, like the scraping device according to claim 1, the opening surface of the receiver and the roller before scraping are provided. Even if the lower end of the circumferential surface of the roller is displaced, the roller can smoothly ride on the edge of the opening of the receiver by advancing the roller. That is, similar to the scraping device according to the first aspect, a smooth scraping operation can be performed even if there is a slight misalignment between the opening surface of the receiver and the lower end of the peripheral surface of the roller. In addition, this claim 2
In the scraping device described in (1), since the first supporting member that supports the roller is rotatably supported with respect to the second supporting member, when the roller rolls on the opening end of the receiver, 1 The support member is inclined with respect to the scraped surface. That is, before the roller contacts the receiver, the first support member is vertically suspended by the second support member, but when the roller rolls on the opening end of the receiver, The first support member is obliquely suspended from the second support member such that the first support member lags behind the roller in the traveling direction of the roller. When the roller rolls over the opening end of the receiver in that state, a force acts so that the peripheral surface of the roller is pressed onto the opening end of the receiver. As a result, the roller rolls in a state where the roller and the end of the opening of the receiver are always in contact with each other, that is, the roller does not float on the end of the opening of the receiver due to the powder.
Therefore, the scraped surface of the powder coincides with the end surface of the opening portion of the receiver, and an accurate scraped surface appears.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail by explaining one embodiment of the present invention with reference to the drawings. In this embodiment, the scraping device according to one embodiment of the present invention is incorporated in an automatic sampling device. The scraping device will be described together with this automatic sampling device. As shown in FIG. 1, the automatic sampling device 1 includes a hopper device 2
, Receiver 3, suction mounting means 4, cylindrical guide 5, powder waste hopper 6, scraping device 7, and weighing device 8
A receiver handling device 9 and a control means 11 for controlling the operation of each of these parts. The hopper device 2
Is a funnel-shaped hopper body 2a and its hopper body 2a
And a lower opening 2b provided in the lower part of the. The lower opening 2b of the hopper body 2a is provided with a damper 2c for opening and closing the lower opening 2b. The damper 2c is coupled to the damper driving device 2d, and the lower driving portion 2d can be driven to close the lower opening portion 2b or open the lower opening portion 2b. The lower opening 2 in the hopper body 2a
Below b, a light emitting sensor 12 and a light receiving sensor 13 for detecting light emitted from the light emitting sensor 12 are arranged across a space where the powder falling from the lower opening 2b falls. The light emitting sensor 12 and the light receiving sensor 13 can detect the powder falling from the lower opening 2b of the hopper body 2a. A vibrating device 14 that applies vibration to the hopper body 2a is arranged on the outer periphery of the hopper body 2a. Below the lower opening 2b of the hopper body 2a, a suction mounting means 4 and a cylindrical guide 5 are arranged. As shown in FIGS. 1 and 2, the suction mounting means 4 has a suction cylindrical body 4a having an open upper end. The size of the upper end opening 4b of the suction tubular body 4a is set to an appropriate size so that the receiver 3 can be placed on the edge of the upper end opening 4b.
At the edge of the upper end opening 4b of the suction tubular body 4a, when the receiver 3 is placed on the upper end opening 4b, a gap is formed between the bottom surface of the receiver 3 and the upper end opening 4b. , Notches 4c are provided. The shape of the notch 4c is not particularly limited, and may be a saw-tooth shape or a rectangular shape arranged in a row at the annular end edge of the upper end opening 4b of the suction tubular body 4a. The lower cylindrical surface of the suction tubular body 4a is formed in a brim shape, and when the inverted receiver 3 is put on the suction tubular body 4a, the opening end of the receiver 3 is placed. An annular mounting surface 4d and a tubular guide 5 that stands upright in an annular shape from the outer extension of the annular mounting surface 4d are provided. The suction cylindrical body 4a is arranged in a standing manner inside the powder waste hopper 6. Then, the lower end of the suction cylindrical body 4a is guided to the outside of the powder waste hopper 6 and connected to the suction mechanism 16 via a connecting pipe, for example, a flexible tube 15.
This suction mechanism 16 is a blower 1 with a powder dust collecting chamber 16a having the tip of the flexible tube 15 introduced therein and a filter 16b connected to the powder dust collecting chamber 16a.
6c and. In the suction mechanism 16, by driving the blower 16c, outside air is taken into the powder dust collecting chamber 16a from the upper end opening 4b of the suction cylindrical body 4a,
The filter 16b can remove dust sucked together with the outside air. Suction cylinder 4a
When the receiver 3 is placed in the upper opening 4b of the receiver, the receiver 3
The scraping device 7 is arranged in a horizontal plane substantially the same as the opening of the. For example, as shown in FIG. 3, the scraping device 7 has a support member 7a which can be moved back and forth by a driving means (not shown) and a U-shaped portion provided at the tip of the support member 7a. Support 7b
And a free roller 7f mounted between the support pieces 7c by supporting the shaft center 7e in vertically long support holes 7d provided in the opposing support pieces 7c of the support body 7b. The scraping device 7 shown in FIG.
3 is an example of the scraping device 7 described in FIG. In the scraping device 7 shown in FIG. 3, the free roller 7f is free roller 7 within a range restricted by the vertically long supporting hole 7d.
The axis 7e of f can be moved up and down. Note that, in the automatic sampling device 1, instead of the scraping device 7 shown in FIG. 3, the scraping device 7 shown in FIG. 4 can be adopted as a modified example. The scraping device 7 shown in FIG. 4 is an example of the scraping device 7 described in claim 2. As shown in FIG. 4, the scraping device 7 is provided with a second supporting member 7g which can be moved back and forth by a driving means (not shown), and a second supporting member 7g which is suspended in the vertical direction at the tip end of the second supporting member 7g. The first supporting member 7h formed in a U shape, which is rotatably supported at the tip of the second supporting member 7g, and the fixed roller provided on the opposing supporting pieces of the first supporting member 7h. 7j and the fixed roller 7j having an inner diameter larger than the diameter of the fixed roller 7j and inside the inner cylindrical space having the inner diameter.
And a free roller 7k mounted on the fixed roller 7j so as to be inserted therethrough. In the scraping device 7 shown in FIG. 4, the free roller 7k can freely rotate with the fixed roller 7j in the middle, and the first supporting member 7h is at the fulcrum at the tip of the second supporting member 7g. It can be freely swung or rotated. As shown in FIG. 1, the powder waste hopper 6
A discharge pipe 6a is connected to the lower end of the. The lower end tip portion of the discharge pipe 6a is inserted into the powder feeding box 6b. In this embodiment, since the automatic sampling device 1 is used as an automatic bulk specific gravity measuring device, the tip of the lower end of the discharge pipe 6a is inserted into the powder charging box 6b. The automatic sampling device 1 is not limited to the automatic bulk specific gravity measuring device and can be used for various purposes. For example, the automatic sampling device 1 can be connected to an extrusion molding device for resin and can also be used as a device for supplying a fixed amount of resin powder. When adopting this automatic sampling device 1 as such a resin powder supply device,
The lower end of the powder waste hopper 6 may be connected to the resin supply port of the extrusion molding device, or in some cases, the powder waste hopper 6 itself in the automatic sampling device 1 may be used as the resin supply hopper in the extrusion molding device. . The upper end opening 4b of the suction cylindrical body 4a in the suction mounting means 4
There is no particular limitation on the material, structure, and the like of the receiver 3 placed on, as long as it accommodates powder and the opening thereof is trimmed horizontally. However, if this automatic sampling device 1 is utilized as an automatic bulk specific gravity measuring device, it is preferable that the receiver 3 has a predetermined size and internal volume standardized by JIS for measuring the bulk specific gravity of powder. Of course, the receiver 3 is not limited to such a JIS standard container, and the size, material, etc. of the receiver 3 can be appropriately determined according to the application of the automatic sampling device 1. The weighing device 8 is not particularly limited in its structure, standard, etc. as long as it has a weighing surface 8a on which the weight can be measured and the receiver 3 can be placed. However, the weighing device 8 can electrically transmit the weighing result to the control means 11. As shown in FIG. 1, the receiver handling device 9 includes a gripping member 9a.
And a rotation support member 9b and a moving body 9d, and is controlled by the control means 11. The gripping member 9a in the receiver handling device 9 has a pair of gripping pieces 9e coupled to the rotation support member 9b. And this gripping piece 9
e can be opened and closed to the left and right, and the receiver 3 can be gripped by disposing the receiver 3 between the gripping pieces 9e and sandwiching the receiver 3 with the gripping pieces 9e. The rotation support member 9b is mounted on the movable body 9d, and the rotation support member 9b itself rotates in the vertical plane so that the gripping piece 9e itself can also rotate in the vertical plane. The moving body 9d horizontally extends between a position where the receiver 3 placed in the upper end opening 4b of the suction tubular body 4a can be sandwiched by the grip pieces 9e and above the weighing surface 8a of the weighing device 8. Can be reciprocated, and descends from above the weighing surface 8a of the weighing device 8 to receive the receiver 3 on the weighing surface 8a.
It is possible to move horizontally and vertically so that the receiver 3 can be placed and the receiver 3 on the measuring surface 8a can be gripped and raised. In order to execute these operations, the rotation support member 9b has a guide rail (not shown), and a rotating wheel that rolls on the guide rail to realize the moving motion of the moving body 9d. It has a drive means etc. which drives the rotating wheel. The control means 11 controls the operation of the receiver handling apparatus 9, that is, the moving operation of the moving body 9d, the rotating operation of the rotating support member 9b, the holding operation of the holding member 9a, and the driving of the vibrating device 14. The opening / closing operation of the damper 2c, the operation of the scraping device 7, and the operation of the hopper cleaning device are controlled. Next, the operation of the automatic sampling device 1 having the above configuration will be described. First, as an initial state, a predetermined amount of powder is stored in the hopper main body 2a, the lower opening 2b of the hopper is closed by a damper 2c, and the receiver 3 with the opening above is the upper end of the suction tubular body 4a. Opening 4
It is supposed to be mounted on b. The damper driving device 2d receiving the control command of the control means 11 causes the damper 2c to perform the retracting movement, so that the lower opening 2b of the hopper body 2a is opened and the powder in the hopper body 2a falls toward the receiver 3. To do. At this time, when vibration is applied to the hopper main body 2a by the vibrating device 14, the powder can be smoothly dropped from the lower opening 2b. That is, when vibration is applied to the hopper body 2a by the vibrating device 14, bridge formation of powder is prevented in the lower opening 2b. The light emitting sensor 12 and the light receiving sensor 13 detect the drop of the powder, and confirm that the powder is accurately supplied into the receiver 3. Lower opening 2b for a certain time
When a predetermined amount of powder is accommodated in the receiver 3 by releasing, the damper 2c closes the lower opening 2b. As shown in FIG. 3, powder 17 is accommodated in the receiver 3 in a heaped state from the opening of the receiver 3. Next, the control means 11 controls the driving means (not shown) of the scraping device 7 to move the supporting member 7a of the scraping device 7 forward. As the support member 7a moves forward, the free roller 7f moves horizontally toward the opening of the receiver 3. If the lower end of the peripheral surface of the free roller 7f is not in the same plane as the opening surface of the receiver 3 in the horizontal movement direction of the free roller 7f, the lower end of the peripheral surface of the free roller 7f is slightly smaller than the opening surface of the receiver 3. Even if the free roller 7f is located below, the shaft center 7e of the free roller 7f is supported by the support member 7a so that it can move up and down.
Abutting the end of the opening of the free roller 7f
You can ride on the edge of the opening smoothly. Then, by further advancing the support member 7a, the free roller 7f rolls on the opening end of the receiver 3, and the rolling-up scrapes off the piled-up powder 17 in the receiver 3. During the scraping operation, the blower 16c of the suction mechanism 16 is driven to suck the outside air from the upper end opening 4b of the suction tubular body 4a. Although the bottom surface of the receiver 3 is placed on the upper end opening 4b of the suction tubular body 4a, since the upper end opening 4b is provided with the notch 4c, the outside air is discharged from the notch 4c. It is rapidly sucked into the suction cylindrical body 4a. Therefore, due to the suction of the outside air, the excess powder scraped off by the free roller 7f is sucked into the suction cylindrical body 4a along with the rapid suction of the outside air, and the powder sucked together with the outside air is Collected in the dust collection room. Also, this suction tubular body 4
Since a is erected in the powder waste hopper 6, all of the scraped powder is not sucked into the suction cylindrical body 4a, and the powder dropped in a wider area than the suction cylindrical body 4a. The body falls into this powder waste hopper 6. Therefore, in the automatic sampling device 1, the powder dropped from the receiver 3 by the scraping operation is contained in the suction cylindrical body 4a or dropped into the powder waste hopper 6, so that the automatic sampling device 1 No powder is scattered outside. Therefore, it can be said that the automatic sampling device 1 is a clean device in which the periphery of the device is not covered with powder. Further, since the outside air is sucked from the upper end opening 4b of the suction cylindrical body 4a at a high speed by driving the blower 16c, the powder adhering to the outer peripheral surface of the receiver 3 can also be sucked, and the powder is stored. The outer peripheral surface of the receiver 3 can be kept clean at all times. After the scraping operation is completed, the free roller 7f retracts to its original position and the drive of the blower 16c is also stopped. Then, the automatic handling device starts driving. That is, the receiver handling device 9 waiting in the vicinity of the receiver 3 placed on the suction tubular body 4a.
The gripping piece 9e grips the receiver 3. The receiver 3 is moved above the weighing device 8 by horizontally moving the moving body 9d while holding the receiver 3 with the gripping piece 9e. The receiver 3 which has been positioned above the weighing device 8 is moved to the moving body 9d.
Is lowered, the weighing surface 8a of the weighing device 8 is lowered.
I will place it in When the receiver 3 is placed on the measuring surface 8a, the grip pieces 9e spread to the left and right, and the receiver 3 is released from the grip pieces 9e. The weighing device 8 weighs the receptacle 3 containing the powder,
The measurement data is output to the control means 11. When the weighing is finished, the receiver 3 is again gripped by the pair of gripping pieces 9e, and the receiver 3 is moved upward by raising the moving body 9d. Then, the moving body 9d is horizontally moved to position the receiver 3 above the powder waste hopper 6. By rotating the gripping piece 9e in the vertical plane by driving the rotation support member 9b, the receiver 3 having the opening portion turned upside down is turned upside down, and the opening portion is turned down, so that the receiver 3 The powder inside is put into the powder waste hopper 6. After the powder is charged, the moving body 9d moves to position the receiver 3 with the opening facing down above the suction cylindrical body 4a. Then, the receiver 3 is placed on the suction cylinder 4a. When the opening of the receiver 3 is in contact with the annular mounting surface 4d and the receiver 3 is put on the suction cylindrical body 4a, the blower 16c is driven again. By driving the blower 16c, the outside air is sucked from the upper end opening 4b of the suction cylindrical body 4a. At this time, the outside air has a gap between the inner peripheral surface of the cylindrical guide 5 and the outer peripheral surface of the receiver 3, a gap formed on the annular mounting surface 4d, and the inner peripheral surface of the receiver 3 and the suction cylindrical body 4a. A high-speed airflow is formed through the gap between the outer peripheral surface and the upper end opening 4b of the suction cylindrical body 4a, and is sucked into the inside of the cylindrical body 4a. Is sucked into the suction cylindrical body 4a together with the air flow of the above, and is collected in the powder dust collecting chamber 16a. As a result, the powder is removed from the surface of the receiver 3 and the surface of the receiver 3 is cleaned. After cleaning the surface of the receiver 3, the receiver handling device 9
Starts driving again, grips the receiver 3 and sucks the tubular body 4a.
Pull out the receiver 3 from. Then, by rotating the rotation support member 9b, the receiver 3 is rotated so that the opening portion faces upward. The receiver 3 with the opening facing upward is placed on the upper end opening 4b of the suction cylindrical body 4a by the receiver handling device 9. And it returns to the initial state. The above operation is repeated a predetermined number of times to perform the powder weighing operation. If it is applied as a bulk specific gravity measuring device, the bulk specific gravity of the powder is calculated by the computer in the control means 11 from the data measured by the measuring device 8 and the internal volume of the receiver 3 which is input in advance, The result is displayed by an output means (not shown).

According to the present invention, the surplus powder contained in a heaped state in the receiver can be precisely scraped without adversely affecting the health of the operator. It is possible to provide a fully-automatic scraping device capable of scraping off.

[Brief description of drawings]

FIG. 1 is an overall explanatory view showing an automatic sampling device incorporating a scraping device which is an example of the present invention.

FIG. 2 is an explanatory view showing a suction mounting means in the automatic sampling device.

FIG. 3 is an explanatory diagram showing a scraping device according to an embodiment of the present invention, which is applied to an automatic sampling device.

FIG. 4 is an explanatory view showing a scraping device according to an embodiment of the present invention, which is applied to an automatic sampling device.

[Explanation of symbols]

 1 Automatic Sampling Device 2 Hopper Device 3 Receiver 4 Suction Placement Device 5 Cylindrical Guide 6 Powder Disposal Hopper 7 Scraping Device 8 Weighing Device 9 Receiver Handling Device 11 Control Device

─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] November 18, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction content]

[Document name] Statement

[Title of Invention] Scraping device

[Claims]

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scraping device.

[0002]

2. Description of the Related Art Conventionally, the problems to be solved by the invention
When collecting a predetermined amount of powder, for example, an operator collects powder with a measuring cup, and among the powder collected with the measuring cup, excess powder that is heaped up from the opening of the measuring cup. Is scraped off and then the measuring cup with the powder is weighed to obtain the correct amount of powder.
In order to scrape off the piled powder, a plate-shaped or edge-shaped scraping plate has hitherto been slid on the opening of the measuring cup.

However, with such a scraping operation, it was not possible to accurately scrape and remove the excess powder from the measuring cup. For example, the scraping plate often floated up without accurately sliding on the opening of the measuring cup.

Above all, when the operator carries out the above-mentioned scraping operation, there are problems that the operator becomes powder coated and that the scattered powder is sucked and the health is impaired.

The present invention has been completed based on the above circumstances. That is, the object of the present invention is to efficiently and accurately remove the surplus powder rising from the opening of the receiver among the powders supplied to the receiver, and to automatically remove it regardless of the operator. An object of the present invention is to provide a scraping device that can perform a scraping operation.

[0006]

According to a first aspect of the present invention for solving the above-mentioned problems, a roller which rolls on an opening of a receiver containing powder and a vertical axis of the roller are moved. A scraping device comprising: a supporting member for supporting the roller so as to be capable of rolling. The invention according to claim 2 rolls on an opening of a receiver containing powder. Roller, a first support member that supports the roller so that the axis of the roller can move up and down, and a second support member that rotatably supports the first support member. It is a scraping device,

[0007]

In the scraping device according to the first aspect, since the roller is supported by the supporting member so that the axis of the horizontal roller can move up and down, the roller is advanced toward the opening end of the receiver. Even if the circumferential surface of the roller comes into contact with the opening end of the receiver for the first time, the roller can move upward so that the roller can ride on the opening end of the receiver. In other words, even if the upper end opening surface of the receiver and the lower end portion of the peripheral surface of the roller are not flush with each other, that is, there is a slight misalignment, the roller smoothly advances on the opening end of the receiver. can do. Moreover, since the roller rolling on the opening end of the receiver is supported by the support member so as to be vertically movable, the contact between the opening end of the receiver and the roller is stable, and the scraped surface of the powder is The phenomenon of waviness is prevented. Further, according to the scraping device of the first aspect, even if the receiver vibrates due to the roller rolling on the opening end of the receiver, the amount of powder contained in the receiver is reduced. It does not fluctuate.

Also in the scraping device according to the second aspect, since the axis of the horizontal roller can be moved up and down, like the scraping device according to the first aspect, the scraping device and the opening surface of the receiver are scraped. Even if the lower end of the peripheral surface of the front roller is displaced, the forward movement of the roller allows the roller to smoothly ride on the end of the opening of the receiver. That is, similar to the scraping device according to the first aspect, a smooth scraping operation can be performed even if there is a slight misalignment between the opening surface of the receiver and the lower end of the peripheral surface of the roller. Further, in the scraping device according to the present invention, since the first supporting member that supports the roller is rotatably supported with respect to the second supporting member, the roller moves above the opening end of the receiver. When rolling, the first
The support member is inclined with respect to the scraped surface. That is, before the roller contacts the receiver, the first support member is vertically suspended by the second support member, but when the roller rolls on the opening end of the receiver, The first support member is obliquely suspended from the second support member such that the first support member lags behind the roller in the traveling direction of the roller. When the roller rolls over the opening end of the receiver in that state, a force acts so that the peripheral surface of the roller is pressed onto the opening end of the receiver. As a result, the roller rolls in a state where the roller and the end of the opening of the receiver are always in contact with each other, that is, the roller does not float on the end of the opening of the receiver due to the powder. Therefore, the scraped surface of the powder coincides with the end surface of the opening portion of the receiver, and an accurate scraped surface appears.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail by explaining one embodiment of the present invention with reference to the drawings.

In this embodiment, the scraping device according to one embodiment of the present invention is incorporated in an automatic sampling device. The scraping device will be described together with this automatic sampling device.

As shown in FIG. 1, the automatic sampling device 1 includes a hopper device 2, a receiver 3, and a suction mounting means 4.
A cylindrical guide 5, a powder waste hopper 6, a scraping device 7, a weighing device 8, a receiver handling device 9,
It has a control means 11 for controlling the operation of each of these parts.

The hopper device 2 has a funnel-shaped hopper body 2a and a lower opening 2b provided at the bottom of the hopper body 2a. The lower opening 2b of the hopper body 2a is provided with a damper 2c for opening and closing the lower opening 2b. The damper 2c is coupled to the damper driving device 2d, and the damper driving device 2d drives the damper 2c to close the lower opening 2b or the lower opening 2b.
Can be opened. Below the lower opening 2b of the hopper main body 2a, a light emitting sensor 12 and a light receiving sensor 13 for detecting light emitted from the light emitting sensor 12 are provided with a space in which powder falling from the lower opening 2b falls. Are arranged. The light emitting sensor 12 and the light receiving sensor 13 can detect the powder falling from the lower opening 2b of the hopper body 2a. A vibrating device 14 that applies vibration to the hopper body 2a is arranged on the outer periphery of the hopper body 2a.

Below the lower opening 2b of the hopper body 2a, a suction mounting means 4 and a cylindrical guide 5 are arranged.

As shown in FIGS. 1 and 2, the suction mounting means 4 has a suction cylindrical body 4a whose upper end is open. The size of the upper end opening 4b of the suction tubular body 4a is set to an appropriate size so that the receiver 3 can be placed on the edge of the upper end opening 4b. Upper end opening 4b of the suction tubular body 4a
A cutout 4c is provided at the end edge of so as to form a gap between the bottom surface of the receiver 3 and the upper end opening 4b when the receiver 3 is placed on the upper end opening 4b. The shape of the notch 4c is not particularly limited, and may be a saw-tooth shape or a rectangular shape arranged in a row at the annular end edge of the upper end opening 4b of the suction tubular body 4a.

The suction cylindrical body 4a is formed in a flange shape on the lower circumferential surface thereof, and when the inverted receiver 3 is put on the suction cylindrical body 4a, the opening end of the receiver 3 is closed. An annular mounting surface 4d to be mounted and a tubular guide 5 that stands upright in an annular shape from the outer extension of the annular mounting surface 4d are provided.

The suction cylinder 4a is arranged in a standing manner inside the powder waste hopper 6. Then, the lower end of the suction cylindrical body 4a is guided to the outside of the powder waste hopper 6 and connected to the suction mechanism 16 via a connecting pipe, for example, a flexible tube 15.

The suction mechanism 16 has a dust collecting chamber 16a in which the tip of the flexible tube 15 is introduced.
And a blower 16c with a filter 16b connected to the powder dust collection chamber 16a. In the suction mechanism 16, by driving the blower 16c, the outside air is sucked from the upper end opening 4b of the suction cylindrical body 4a to the powder dust collecting chamber 1
It is possible to remove the dust that has been taken into 6a and that has been sucked together with the outside air by the filter 16b.

The receiver 3 is placed in the upper opening 4b of the suction cylinder 4a.
The scraping device 7 is disposed in a horizontal plane that is substantially the same as the opening of the receiver 3 when the is mounted.

The scraping device 7 is, for example, as shown in FIG. 3, a supporting member 7a which can be moved back and forth by a driving means (not shown), and a U-shaped portion provided at the tip of the supporting member 7a. Shaped support 7
b and a free roller 7f mounted between the support pieces 7c by supporting the shaft center 7e in vertically long support holes 7d provided in the opposing support pieces 7c of the support body 7b.
Have and. The scraping device 7 shown in FIG. 3 is an example of the scraping device 7 described in claim 1.

In the scraping device 7 shown in FIG. 3, the free roller 7f can move the shaft center 7e of the free roller 7f up and down within a range restricted by the vertically long supporting hole 7d.

In the automatic sampling device 1, instead of the scraping device 7 shown in FIG. 3, a scraping device 7 shown in FIG. 4 can be adopted as a modified example. The scraping device 7 shown in FIG. 4 is an example of the scraping device 7 described in claim 2.

As shown in FIG. 4, this scraping device 7
Is suspended vertically in the second support member 7g, which can be moved back and forth by a driving means (not shown), and at the tip of the second support member 7g, and is rotatable at the tip of the second support member 7g. The first supporting member 7h formed in a U-shape and supported by the first supporting member 7h
Fixed roller 7j provided on the supporting pieces facing each other in
And a free roller 7k which has an inner diameter larger than the diameter of the fixed roller 7j and is attached to the fixed roller 7j so that the fixed roller 7j is inserted into the internal cylindrical space having the inner diameter. In the scraping device 7 shown in FIG. 4, the free roller 7k can freely rotate with the fixed roller 7j inside.
Further, the first supporting member 7h can freely swing or rotate at a fulcrum at the tip of the second supporting member 7g.

As shown in FIG. 1, a discharge pipe 6a is connected to the lower end of the powder waste hopper 6. The lower end tip portion of the discharge pipe 6a is inserted into the powder feeding box 6b.
In this embodiment, since the automatic sampling device 1 is used as an automatic bulk specific gravity measuring device, the discharge pipe 6a is
The tip end of the lower end is inserted into the powder feeding box 6b.
The automatic sampling device 1 is not limited to the automatic bulk specific gravity measuring device and can be used for various purposes. For example, the automatic sampling device 1 can be connected to an extrusion molding device for resin and can also be used as a device for supplying a fixed amount of resin powder. When this automatic sampling device 1 is adopted as such a resin powder supply device, the lower end of the powder waste hopper 6 may be connected to the resin supply port of the extrusion molding device, or in some cases, this automatic sampling device. The powder waste hopper 6 itself in 1 may be used as the resin supply hopper in the extrusion molding apparatus.

As the receiver 3 placed on the upper end opening 4b of the suction cylindrical body 4a in the suction mounting means 4, as long as it accommodates powder and its opening is trimmed horizontally, The material and structure are not limited. However, if this automatic sampling device 1 is used as an automatic bulk specific gravity measuring device, J
Receiver 3 having a predetermined size and internal volume standardized by IS
Is desirable. Of course, the receiver 3 is not limited to such a JIS standard container, and the size, material, etc. of the receiver 3 can be appropriately determined according to the application of the automatic sampling device 1.

As the weighing device 8, a weighing surface 8 on which the weight can be measured and on which the receiver 3 can be placed
There is no particular limitation on the structure, standard, etc., as long as it has a. However, this weighing device 8 controls the weighing result by the control means 1
1 can be electrically transmitted.

As shown in FIG. 1, the receiver handling device 9 includes a holding member 9a, a rotation support member 9b, and a moving body 9.
d and are controlled by the control means 11.

The gripping member 9a of the receiver handling device 9 has a pair of gripping pieces 9e connected to the rotation supporting member 9b. The gripping piece 9e can be opened and closed to the left and right, and the receiver 3 is arranged between the gripping pieces 9e, and the receiver 3 can be gripped by sandwiching the receiver 3 with the gripping piece 9e. It has become.

The rotation support member 9b is attached to the movable body 9d, and the rotation support member 9b itself rotates in the vertical plane, so that the gripping piece 9e itself can also rotate in the vertical plane. There is.

The movable body 9d is provided at a position where the receiver 3 placed in the upper end opening 4b of the suction cylindrical body 4a can be sandwiched by the grip pieces 9e and above the weighing surface 8a of the weighing device 8. It is possible to reciprocate horizontally between the measuring device 8 and the measuring device 8 descends from above the measuring surface 8a.
The receiver 3 can be placed on the measuring surface 8a and can be moved horizontally and vertically so that the receiver 3 on the measuring surface 8a can be gripped and raised. Has become. In order to execute these operations, the rotation support member 9b has a guide rail (not shown),
Further, in order to realize the moving motion of the moving body 9d, it has a rotating wheel that rolls on the guide rail and a driving means that drives the rotating wheel.

The control means 11 controls the operation of the receiver handling device 9, that is, the moving operation of the movable body 9d, the rotating operation of the rotating support member 9b, and the holding operation of the holding member 9a.
It also controls the driving of the vibrating device 14, the opening / closing operation of the damper 2c, the operation of the scraping device 7, and the operation of the hopper cleaning device.

Next, the operation of the automatic sampling device 1 having the above configuration will be described.

First, as an initial state, a predetermined amount of powder is contained in the hopper main body 2a, the lower opening 2b of the hopper is closed by the damper 2c, and the receiver 3 with the opening above is the suction cylinder. It is assumed that it is mounted on the upper end opening 4b of 4a.

The damper driving device 2d receiving the control command of the control means 11 causes the damper 2c to perform the retreat movement, so that the lower opening 2b of the hopper body 2a is opened and the powder in the hopper body 2a is transferred to the receiver 3. Fall towards. At this time, when vibration is applied to the hopper main body 2a by the vibrating device 14, the powder can be smoothly dropped from the lower opening 2b. That is, the vibration device 14
Thus, when vibration is applied to the hopper body 2a, bridge formation of powder is prevented at the lower opening 2b. The light emitting sensor 12 and the light receiving sensor 13 detect the drop of the powder, and confirm that the powder is accurately supplied into the receiver 3. When a predetermined amount of powder is stored in the receiver 3 by releasing the lower opening 2b for a certain period of time, the damper 2c closes the lower opening 2b.

In the receiver 3, as shown in FIG.
Are housed in a heaped state from the opening of the receiver 3. Next, the control means 11 controls the driving means (not shown) of the scraping device 7 to move the supporting member 7a of the scraping device 7 forward. As the support member 7a moves forward, the free roller 7f moves horizontally toward the opening of the receiver 3. If the lower end of the peripheral surface of the free roller 7f is not in the same plane as the opening surface of the receiver 3 in the horizontal movement direction of the free roller 7f, the lower end of the peripheral surface of the free roller 7f is slightly smaller than the opening surface of the receiver 3. Even if the free roller 7f is located below, the axis 7e of the free roller 7f is supported by the support member 7a so as to be vertically movable.
The peripheral surface of the contact member abuts on the end of the opening of the receiver 3, and then the free roller 7f can smoothly ride on the end of the opening of the receiver 3. Then, by further advancing the support member 7a, the free roller 7f rolls on the opening end of the receiver 3, and the rolling-up scrapes off the piled-up powder 17 in the receiver 3.

During the scraping operation, the blower 16c of the suction mechanism 16 is driven to suck the outside air from the upper end opening 4b of the suction cylinder 4a. The receiver 3 is attached to the upper end opening 4b of the suction tubular body 4a.
Although the bottom surface of the notch 4c is placed, since the notch 4c is provided in the upper end opening 4b, the notch 4c is provided.
The outside air is rapidly sucked into the suction cylindrical body 4a.
Therefore, due to the suction of the outside air, the excess powder scraped off by the free roller 7f is sucked into the suction cylindrical body 4a along with the rapid suction of the outside air, and the powder sucked together with the outside air is Collected in the dust collection room. Further, since the suction cylindrical body 4a is erected in the powder waste hopper 6,
All of the scraped powder is not sucked into the suction cylindrical body 4a, and the powder falling in a wider area than the suction cylindrical body 4a falls into the powder waste hopper 6. Therefore, in the automatic sampling device 1, the powder dropped from the receiver 3 by the scraping operation is contained in the suction cylindrical body 4a or dropped into the powder waste hopper 6, so that the automatic sampling device 1 No powder is scattered outside. Therefore, it can be said that the automatic sampling device 1 is a clean device in which the periphery of the device is not covered with powder.

Further, since the outside air is sucked at a high speed from the upper end opening 4b of the suction cylinder 4a by driving the blower 16c, the powder adhered to the outer peripheral surface of the receiver 3 can also be sucked. The outer peripheral surface of the receiver 3 accommodating the body can always be kept clean.

After the scraping operation is completed, the free roller 7f
Retreats to its original position and stops driving the blower 16c. Then, the automatic handling device starts driving.

That is, the receiver-handling device 9 waiting in the vicinity of the receiver 3 placed on the suction cylinder 4a.
The gripping piece 9e grips the receiver 3. The receiver 3 is moved above the weighing device 8 by horizontally moving the moving body 9d while holding the receiver 3 with the gripping piece 9e. The receiver 3 which has been positioned above the weighing device 8 is moved to the moving body 9d.
Is lowered, the weighing surface 8a of the weighing device 8 is lowered.
I will place it in When the receiver 3 is placed on the measuring surface 8a, the grip pieces 9e spread to the left and right, and the receiver 3 is released from the grip pieces 9e.

The weighing device 8 weighs the receiver 3 containing the powder and outputs the weighing data to the control means 11.

When the weighing is completed, the pair of gripping pieces 9e is again formed.
Thus, the receiver 3 is gripped, and the receiver 3 is moved upward by the rising of the moving body 9d. Then, the moving body 9d is horizontally moved to position the receiver 3 above the powder waste hopper 6. By rotating the gripping piece 9e in the vertical plane by driving the rotation support member 9b, the receiver 3 having the opening portion turned upside down is turned upside down, and the opening portion is turned down, so that the receiver 3 The powder inside is put into the powder waste hopper 6.

After the powder has been charged, the moving body 9d moves, and the receiver 3 with the opening facing down is moved to the suction cylindrical body 4a.
Position above. Then, the receiver 3 is placed on the suction cylinder 4a.

When the suction cylinder 4a is covered with the receiver 3 with the opening of the receiver 3 in contact with the annular mounting surface 4d, the blower 16c is driven again. This blower 16
By driving c, the outside air is sucked from the upper end opening 4b of the suction tubular body 4a. At this time, the outside air has a gap between the inner peripheral surface of the cylindrical guide 5 and the outer peripheral surface of the receiver 3, a gap formed on the annular mounting surface 4d, and the inner peripheral surface of the receiver 3 and the suction cylindrical body 4a. Since a high-speed airflow is formed through the gap between the outer peripheral surface and the upper end opening 4b of the suction tubular body 4a, the air is sucked into the interior thereof.
The powder adhering to the outer peripheral surface and the inner peripheral surface of the powder is also sucked into the suction cylindrical body 4a together with this high-speed air flow, and the powder dust collecting chamber 16a
Collected in. As a result, the powder is removed from the surface of the receiver 3 and the surface of the receiver 3 is cleaned.

After cleaning the surface of the receiver 3, the receiver handling device 9 restarts driving, grips the receiver 3, and pulls the receiver 3 out of the suction cylinder 4a. Then, by rotating the rotation support member 9b, the receiver 3 is rotated so that the opening portion faces upward. Receiver 3 with opening up
By means of the receiver handling device 9
It is placed on the upper end opening 4b. And it returns to the initial state.

The above operation is repeated a predetermined number of times to perform the powder weighing operation. If it is applied as a bulk specific gravity measuring device, the bulk specific gravity of the powder is calculated by the computer in the control means 11 from the data measured by the measuring device 8 and the internal volume of the receiver 3 which is input in advance, The result is displayed by an output means (not shown).

[0045]

According to the present invention, the surplus powder contained in a heaped state in the receiver can be precisely scraped without adversely affecting the health of the operator. It is possible to provide a fully-automatic scraping device capable of scraping off.

[Brief description of drawings]

FIG. 1 is an overall explanatory view showing an automatic sampling device incorporating a scraping device which is an example of the present invention.

FIG. 2 is an explanatory view showing a suction mounting means in the automatic sampling device.

FIG. 3 is an explanatory diagram showing a scraping device according to an embodiment of the present invention, which is applied to an automatic sampling device.

FIG. 4 is an explanatory view showing a scraping device according to an embodiment of the present invention, which is applied to an automatic sampling device.

[Explanation of Codes] 1 Automatic sampling device 2 Hopper device 3 Receiver 4 Suction mounting means 5 Cylindrical guide 6 Powder disposal hopper 7 Scuffing device 8 Weighing device 9 Receiver handling device 11 Control means

Claims (2)

[Claims] 1. A roller comprising a roller that rolls on an opening of a receiver that contains powder, and a support member that supports the roller so that the axis of the receiver can move up and down. A scraping device. 2. A roller that rolls on an opening of a receiver that contains powder, a first support member that supports the roller so that its axis can move up and down, and the first support member. And a second support member that rotatably supports the scraping device.