KR101848486B1 - Apparatus for supplying powder material - Google Patents

Abstract

The present invention provides a powder supply apparatus which can certainly prevent a phenomenon that a powder outlet is blocked due to a lump of powder particles during a supply process even if a viscous powder (powder type cosmetic raw materials or the like) by including oil is supplied. To this end, the powder supply apparatus comprises: a housing having a powder receiving room and the powder outlet which are interconnected; an outlet opening and closing member moved in a vertical direction on the powder outlet by a driving means in the powder receiving room, and rotated around a shaft in the vertical direction on the powder outlet; and a disassembling pin protruding from a front end of the outlet opening and closing member to be positioned in an inner region of the powder outlet when a powder is discharged, and dispersing the powder while operating with the outlet opening and closing member.

Description

[0001] APPARATUS FOR SUPPLYING POWDER MATERIAL [0002]

An embodiment of the present invention relates to an apparatus used to supply powdered material.

Apparatuses used for the purpose of more precisely supplying powder are disclosed in Korean Patent Publication No. 10-1173383 and Korean Patent Registration No. 10-1216235, and an apparatus disclosed in these publications (hereinafter referred to as a prior art) And operation are shown in Fig.

As shown in FIG. 1, the prior art includes a housing 10 in which a powder is accommodated, a housing 10 mounted on the lower end of the housing 10 so as to be rotatable about a vertical axis, An opening and closing member 30 which is vertically movable in the powder nozzle 20 and opens and closes the discharge port 22 of the powder nozzle 20 in accordance with the moving direction of the powder nozzle 20, A first driving unit 40 that rotates the movable member 20 about the vertical axis, and a second driving unit (not shown) that moves the opening and closing member 30 in the vertical direction.

The opening and closing member 30 is inserted into the discharge port 22 and is formed to have an outer periphery corresponding to the discharge port 22 so that the discharge port 22 can be closed by the opening and closing member 30. A groove 32 having a V-shaped structure is formed at the side of the opening and closing member 30 so as to form a powder passage between itself and the discharge port 22. The groove 32 is formed in the discharge port 22 When it is positioned, the discharge port 22 is opened (see [b] in Fig. 1)

While the powder is being discharged through the discharge port 22, the powder nozzle 20 is rotated to promote powder movement toward the discharge port 22 (see [b] in FIG. 1)

However, such conventional techniques have the following problems.

Powders that contain or are viscous (including oil) (for example, cosmetic raw materials in powder form) may agglomerate as the powder particles adhere to one another. Accordingly, when the viscous powder is supplied, the discharge port 22 may be partially or entirely clogged by the powder particle mass. If the discharge port 22 is clogged during the supply of the powder, it is difficult to accurately supply the powder. Therefore, the supply of the powder is stopped, the clogging of the discharge port 22 is canceled, Etc.

Further, in the case of supplying the viscous powder, the powder particles may adhere to the inner surface of the housing 10 in which the powder is contained and the inner surface of the powder nozzle 20 from which the powder is discharged. The powder particles adhered in this manner can not be supplied and can be deteriorated as they are kept in the state of being attached to the inner surface of the housing 10 or the powder nozzle 20 for a long period of time and can be deteriorated in a state of being deteriorated (impurities) ≪ / RTI >

Korean Registered Patent No. 10-1173383 (Aug. 10, 2012) Korean Registered Patent No. 10-1216235 (December 28, 2012)

An embodiment of the present invention has an object to provide a powder supply device which is more advantageous in terms of improvement of supply efficiency of powder and prevention of supply failure of powder.

The problems to be solved are not limited thereto, and other matters not mentioned can be clearly understood by those skilled in the art from the following description.

According to an embodiment of the present invention, there is provided a powder coating apparatus comprising: a housing having a powder accommodation chamber and a powder discharge port communicating with the powder accommodation chamber; A discharge port opening and closing member which is movable in a vertical direction with respect to the powder discharge port in the powder accommodation chamber and which is rotatable about an axis in the vertical direction with respect to the powder discharge port and which opens and closes the powder discharge port, ; Driving means for moving and rotating the discharge port opening / closing member; And at least one disassembly pin protruding from the tip of the discharge port opening and closing member and positioned in an inner region of the powder discharge port when discharging powder through the powder discharge port and dispersing the powder while moving together with the discharge port opening and closing member, May be provided.

And the disassembly pin may be disposed so as to be located at an eccentric position deviated from one side of the center of the powder discharge port.

The powder discharge port may be disposed on the bottom surface of the powder accommodation chamber. The powder supply device according to the embodiment of the present invention includes at least one discharge inducing portion for discharging powder on the bottom surface, which is located around the powder discharge port, along the periphery of the powder discharge port on the bottom surface toward the powder discharge port Member. ≪ / RTI >

The discharge-inducing member may be provided with a guide surface for pushing the powder toward the powder discharge port in the rotating direction side. The guide surface has a proximal end positioned relatively close to the powder discharge port and a distal end positioned relatively far away from the powder discharge port, and an imaginary straight line connecting the proximal end and the distal end is formed in the radial direction about the powder discharge port. And may be inclined toward the rotation direction of the discharge-inducing member. Further, the guide surface may be formed in a concave arc shape.

The powder supply device according to the embodiment of the present invention is characterized in that the discharge port opening and closing member is provided at a tip end thereof and is moved in a direction perpendicular to the powder discharge port by the driving means and rotated about an axis in the vertical direction with respect to the powder discharge port ; A rotatable member mounted on the upper portion of the housing so as to be rotatable about the axis, the shaft member being penetrable in a direction perpendicular to the powder discharge port; A rotation interlocking means for transmitting the rotation force of the shaft member to the rotary member; And a connecting member connected to the rotary member and the discharge inducing member at both upper and lower sides to rotate the discharge inducing member together with the rotary member.

The powder supply device according to an embodiment of the present invention may further include a plurality of stir blades protruding from the connecting member and rotating together with the connecting member to stir the powder contained in the powder containing chamber.

The discharge port opening and closing member may have a closed end of a tip inserted into the powder discharge port to close the powder discharge port or to leave the powder discharge port and open the powder discharge port according to the moving direction of the powder discharge port. Thus, the disassembly pin can protrude from the closed end.

The discharge port opening / closing member may have an open end provided around the groove forming the powder passage between the powder discharge port and the powder discharge port when the discharge port opening / closing member is inserted into the powder discharge port on the opposite side of the closed end.

Means for solving the problems will be more specifically and clarified through the embodiments, drawings, and the like described below. In addition, various solution means other than the above-mentioned solution means may be further proposed.

According to the embodiment of the present invention, it is possible to provide a disassembling pin which is projected from the front end of the ejection opening opening and closing member and is located in the inner region of the powder discharge opening at the time of discharge of the powder and which disperses the powder with movement (linear motion and / It is possible to reliably prevent the phenomenon that the powder discharge port is clogged partially or wholly while the powder particles are being lumped during the supply even if the powder containing the oil (grease) is to be supplied as the object to be supplied, (For example, a cosmetic raw material in the form of a powder) can be supplied continuously and accurately without clogging.

In addition, since the disassembly pin is disposed eccentrically, the efficiency of dispersion (disassembly) of the powder can be improved.

According to the embodiment of the present invention, since the powder discharge member includes the discharge inducing member that pushes the powder toward the powder discharge port while rotating along the periphery of the inlet side of the powder discharge port, the powder located around the powder discharge port can also be supplied through the powder discharge port . Since the discharge-inducing member is rotated by the power provided to the discharge-port opening / closing member, the discharge-inducing member can be operated without a separate power source.

In addition, since the guide surface of the discharge guide member pushing the powder toward the powder discharge port has a structure inclined toward the rotation direction of the discharge guide member with respect to the radial direction about the powder discharge port and the guide surface is formed into a concave arc shape, A large amount of powder can be reliably guided toward the powder discharge port.

According to the embodiment of the present invention, since it includes the stir blades that cooperate with the discharge inducing member to disperse the powder of the powder accommodation chamber while rotating together with the discharge inducing member, the dispersion action of the powder in the powder accommodation chamber Can be provided without a separate driving source.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view showing the structure and operation of a powder feeder according to the prior art; FIG.
2 is a partial sectional view showing a powder supply apparatus according to an embodiment of the present invention.
3 is a partial cross-sectional view showing part A of Fig.
4 is a front view showing the open / close unit shown in Fig.
5 is a perspective view showing the discharge port opening / closing member shown in Fig.
Fig. 6 shows the operation of the discharge port opening / closing member shown in Figs.
7 is a perspective view showing the discharge inducing member, the connecting member, the stir blade, etc. shown in Figs.
Fig. 8 is a cross-sectional view taken along the line AA of Fig. 2, showing the operation of the discharge-guiding member.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. For a better understanding of the invention, it is to be understood that the size of elements and the thickness of lines may be exaggerated for clarity of understanding. Further, the terms used to describe the embodiments of the present invention are mainly defined in consideration of the functions of the present invention, and thus may be changed depending on the intentions and customs of the user and the operator. Therefore, the terminology should be interpreted based on the contents of the present specification throughout.

The powder feeder according to the embodiment of the present invention can also be used to supply viscous powder (powdery cosmetic raw material, etc.) containing oil or oil.

2, the powder supplying apparatus according to the embodiment of the present invention includes a housing 100 having a powder receiving chamber 102 in which powder is received. In addition, the housing 100 has a powder inlet 104 and a powder outlet 106.

The powder accommodation chamber (102) is provided inside the housing (100). The powder inlet 104 is provided to communicate with the powder accommodation chamber 102 on one side of the periphery of the housing 100. The powder discharge port 106 is provided to communicate with the powder accommodation chamber 102 at the lower end of the housing 100.

The powder accommodation chamber 102 is formed so as to have a predetermined length in the Z-axis direction in the vertical direction. It is preferable that the powder accommodation chamber 102 is formed so as to have a constant cross-section and is circular. The bottom surface 103 of the powder accommodation chamber 102 is preferably formed to be flat.

The powder inlet 104 may be formed in an inclined shape such that the outlet is positioned below the inlet. A powder input hopper or a powder storage container 700 used for inputting powder may be coupled to the powder inlet 104.

The powder discharge port 106 is disposed in the central portion of the bottom surface 103 of the powder accommodation chamber 102 and is formed in a circular shape.

According to the housing 100 as described above, the powder introduced through the powder inlet 104 can be received in the powder accommodation chamber 102, and the powder contained in the powder accommodation chamber 102 can be discharged through the powder outlet 106 at the lower end Can be supplied (discharged).

2 to 4, the powder supplying apparatus according to the embodiment of the present invention further includes an opening / closing unit 200 for opening / closing the powder discharge opening 106. [

The open / close unit 200 moves (ascends and descends) in the powder containing chamber 102 in the up and down direction perpendicular to the powder discharge opening 106 and discharges the discharge opening and closing member 210 ). The discharge port opening and closing member 210 is disposed on the center line L1 of the powder discharge opening 106 so as to be in the center of the powder discharge opening 106. [

The opening and closing unit 200 is provided with a shaft member 220 capable of linear movement in a direction perpendicular to the powder discharge port 106 and capable of rotating around an axis Ll in a direction perpendicular to the powder discharge port 106 ). The shaft member 220 is disposed in the up and down direction in the moving direction and is located on the center line L1 of the powder discharge opening 106 and coincides with the center of the powder discharge opening 106. [ The discharge port opening and closing member 210 is mounted on the lower end of the shaft member 220 so that the discharge port opening and closing member 210 is moved and rotated together with the shaft member 220.

The opening and closing unit 200 includes a rotary member (not shown) mounted on the upper portion of the housing 100 so as to be linearly movable in the vertical direction and mounted to be rotatable about the vertical axis 230). Further, when the shaft member 220 is rotated, the rotation interlocking means 240 for transmitting the rotational force of the shaft member 220 to the rotational member 230 to rotate the rotational member 230 together with the shaft member 220 . The rotary member 230 is disposed on the center line L1 of the powder discharge opening 106 so as to be centered with the powder discharge opening 106 and is also centered on the discharge opening and closing member 210 and the shaft member 220. A bearing or the like may be used to mount the rotary member 230 to the housing 100 for smooth rotation of the rotary member 230.

4 and 5, a closed end portion 212 formed in a cylindrical shape corresponding to the powder discharge opening 106 is provided at the lower end corresponding to the tip of the discharge opening and closing member 210. 6 (B), the closed end 212 closes the powder discharge opening 106, and the discharge opening and closing member (discharge port opening / closing member) 210 are moved to the upper side in the opposite direction and completely disengaged from the powder discharge port 106, the powder discharge port 106 is opened as shown in FIG. 6 (B).

An open end 214 is provided at the top of the discharge port opening and closing member 210. The open end 214 is disposed above the closed end 212. The open end portion 214 is configured to form a powder passage path 107 for powder supply (discharge) between the powder discharge port 106 and the powder discharge port 106 when inserted into the powder discharge port 106 (see FIG. 6 (C) Specifically, the open end portion 214 has a cylindrical shape corresponding to the powder discharging opening 106, and a circumferential groove 215 having a length in the up-and-down direction is longer than a length of the powder discharging opening 106. The grooves 215 may be provided in plural and spaced apart from each other along the circumferential direction of the open end portion 214. Alternatively, one of the grooves 215 may be formed in the circumferential direction of the open end portion 214.

According to the discharge port opening / closing member 210 configured as described above, the powder can be supplied in the first discharge mode (full open mode) in which the closed end portion 212 is completely disengaged from the powder discharge opening 106 (see The powder may also be supplied in the second discharge mode (partial open mode) in which the powder passage 107 is formed between the powder discharge port 106 and the open end 214 (see FIG. 6 C)

3, the rotation interlocking means 240 includes at least one slide protrusion 242 and a slide groove 244 paired with the slide protrusion 242. [ The slide protrusion 242 is provided on the outer periphery of the shaft member 220. The slide protrusion 242 is disposed in the portion of the shaft member 220 inserted in the rotary member 230 (the portion located inside the rotary member 230). The slide groove 244 is provided in the inner periphery of the rotary member 230 such that the slide protrusion 242 can be slidably moved in the vertical direction together with the shaft member 220. For this purpose, the slide groove 244 is formed to be long in the vertical direction and is arranged to be in parallel with the rotation center (see L 1) of the shaft member 220.

According to the slide protrusion 242 and the slide groove 244, the rotational force of the shaft member 220 is transmitted to the rotational member 230 so that the rotational member 230 rotates together with the shaft member 220 in the same direction . In addition, the shaft member 220 can be freely moved up and down during the rotation of the rotation member 230 together with the shaft member 220.

On the other hand, the rotation interlocking means 240 may include a spline coupled to each other in a pair instead of the slide protrusion 242 and the slide groove 244. [ Specifically, a first spline provided on the outer periphery of the shaft member 220 so as to be parallel to the rotation center (L1) of the shaft member 220, and a second spline provided on the inner circumference of the rotation member 230 to correspond to the first spline, Lt; RTI ID = 0.0 > spline < / RTI > According to this, at least a part of the shaft member 220 may be configured as a spline shaft, and the rotation member 230 may be a rotatable spline boss.

2, the powder supply device according to the embodiment of the present invention is configured to move the discharge port opening and closing member 210 in the vertical direction (Z-axis direction) perpendicular to the powder discharge opening 106, (See 310 and 320) for rotating the discharge port opening and closing member 210 about the center of the discharge port opening and closing member 210. The driving means includes a first driving unit 310 that reciprocates the ejection opening opening and closing member 210 in the up and down direction and rotates the ejection opening opening and closing member 210 and a position of the ejection opening opening and closing member 210 by moving the ejection opening opening and closing member 210 in the vertical direction And a second driving unit 320 for adjusting the driving force.

The first drive unit 310 may include a movable frame 311. The second driving unit 320 may include a fixed frame 321. The movable frame 311 can be mounted on the fixed frame 321 so as to be movable up and down.

The first drive unit 310 includes a cam plate 312 mounted on an exposed portion of the shaft member 220 protruding upward from the powder container room 102 and projecting outward from the housing 100, A fixed plate 313 disposed on the cam plate 312 so as to face the cam plate 312 and mounted on the movable frame 311, a plurality of circumferentially arranged plates 313, A retainer 315 for holding the ball 314 and the balls 314 of the cam plate 312 so as to be in close contact with the balls 314 interposed between the cam plate 312 and the fixed plate 313, And a motor assembly 317 and 318 for rotating the shaft member 220 while moving up and down together with the shaft member 220 do.

The cam plate 312 is formed with grooves in a circumferential direction at an upper portion opposed to the fixed plate 313 and the bottom surface of the groove is formed in the upper surface of the cam plate 312 when the cam plate 312 is rotated, And may have the shape of a sine curve in the circumferential direction so that the motion is performed.

The elastic member 316 may be a coil spring. 3, the coil spring is accommodated in the rotary member 230 in a state of being fitted in the shaft member 220 and is engaged with the engagement jaw provided on the shaft member 220 and the jam provided on the rotary member 230 Both ends of the jaw in the longitudinal direction can be respectively supported.

The motor assemblies 317 and 318 include a drive motor 317 for providing a rotational force and a gear type, belt type or sieve type transmission mechanism 318 for transmitting the rotational force of the drive motor 317 to the shaft member 220 . The drive motor 317 is mounted on the movable frame 311 so as to be movable in the up-and-down direction and is supported by a bearing mounted on the shaft member 220 and a connection mechanism, And can be moved up and down together with the shaft member 220 by being connected to the member 220.

The second driving unit 320 includes a ball screw 322 arranged in the vertical direction, a ball block 323 mounted on the movable frame 311 and threadedly engaged with the ball screw 322, And motor assemblies 324 and 325 that are mounted on the stationary frame 321 and rotate the ball screw 322.

The motor assemblies 324 and 325 of the second drive unit 320 include a drive motor 324 that provides a rotational force and a gear type, belt type, or similar type that transmits the rotational force of the drive motor 324 to the ball screw 322 And a cognitive transmission mechanism 318.

According to the first driving unit 310 and the second driving unit 320, the opening and closing unit 200 can be operated as follows.

When the motor assemblies 324 and 325 of the second drive unit 320 are operated, the ball screw 322 is rotated and the ball block 323, which is screwed with the ball screw 322, (Upward) in the upward direction or downward (downward) in the downward direction according to the moving direction. The first drive unit 310 including the movable frame 311 is moved together with the ball block 323 so that the discharge port opening and closing member 210 and the shaft member 220 are also moved in the same direction.

The discharge port opening and closing member 210 is moved upward by the second drive unit 320 so that the closed end portion 212 is completely disengaged from the powder discharge opening 106 as shown in Figure 6 (a) The powder discharge port 106 is closed as shown in FIG. 6 (b) when the discharge port 210 is moved downward by the second drive unit 320 and the closed end portion 212 is inserted into the powder discharge opening 106. In this state, when the discharge port opening and closing member 210 is moved upward again, the powder discharge opening 106 can be opened again as a whole. 6 (c), when the discharge port opening / closing member 210 is further moved downward and the open end portion 214 is inserted into the powder discharge opening 106, (Not shown).

When the motor assemblies 317 and 318 of the first drive unit 310 are operated, the shaft member 220 is rotated so that the cam plate 312 rotates together with the shaft member 220. At this time, the cam plate 312 is fixed to the fixed plate 313 by the action of returning (elastic force) of the elastic member 316, the balls 314 interposed between the fixed plate 313 and the groove, 313 in the vertical direction. That is, the cam plate 312 reciprocates with the rotational motion. Of course, according to this, the shaft member 220 and the discharge port opening / closing member 210 also rotate and reciprocate together with the cam plate 312. The rotary member 230 rotates only by the slide protrusion 242 and the slide groove 244 of the rotary interlocking means 240. [

The first discharge mode (full open mode, see FIG. 6A) or the state in which the open end portion 214 is inserted into the powder discharge port 106 in a state in which the closed end portion 212 is completely disengaged from the powder discharge opening 106 6 (c)), when the first drive unit 310 is operated, the powder discharge port 106 is repeatedly moved by the reciprocating motion of the discharge port opening / closing member 210 And the powder supply (discharge) through the powder discharge opening 106 can be made in the form of a pulse. At this time, according to the reciprocating motion of the discharge port opening and closing member 210, vibration is generated and the powder can be supplied more smoothly.

On the other hand, in the first discharge mode (full open mode, see FIG. 6A), the height at which the discharge port opening and closing member 210 is moved upward (that is, the distance spaced upward from the powder discharge opening 106) The powder discharge port 106 may not be repeatedly opened or closed even if the discharge port opening and closing member 210 is reciprocated by the first drive unit 310. [

5, 6, and the like, the powder supply device according to the embodiment of the present invention is provided with a disassembling function for preventing the powder discharge port 106 from being clogged by the powder during discharge of the powder through the powder discharge port 106 Further comprising a pin (400).

The disassembly pin 400 is formed in a thin pin shape, and at least one disassembly pin 400 is provided. The disassembly pin 400 is provided at the closed end 212. Specifically, the disassembling pin 400 has a structure that protrudes downward from the tip of the discharge port opening and closing member 210.

The disassembling pin 400 moves together with the discharge port opening and closing member 210 in the inner region of the powder discharge opening 106 in the first discharging mode and disperses the powder while rotating. According to such a disassembling fin 400, in the process of supplying the powder, the powder particles (particularly, the powder particles including the oil or the viscous powder) entering the inner region of the powder discharging opening 106 are stuck to each other, It is possible to minimize the phenomenon of losing dust particles and to prevent the powder discharge openings 106 from being clogged by large powder particle lumps.

4, 5, and the like, the disassembling pin 400 is disposed at an eccentric position shifted to one side from the rotation center (see L 1) of the discharge port opening and closing member 210. The disassembling pin 400 is rotated around the center of the powder discharge port 106 at a position deviated from the center of the powder discharge port 106 in the inner region of the powder discharge port 106 . This provides a further improved powder dispersion efficiency in the powder feed process.

4, 7, and 8, the powder supply device according to the embodiment of the present invention includes a powder discharge port 106 (see FIG. 10) on the bottom surface 103 of the powder accommodation chamber 102, And at least one discharge inducing member 510 for discharging the powder around the powder discharge opening 106 toward the powder discharge opening 106 while rotating along the periphery of the powder discharge opening 106. Further, it further includes a connecting member 520 for interlocking the discharge inducing member 510 with the rotary member 230.

7 and 8, the discharge guide member 510 is provided with a guide surface 512 for pushing the powder toward the powder discharge port 106 in the rotating direction side. The guide surface 512 has a proximal end portion 512a located relatively close to the powder discharge port 106 and a far end portion 512b located relatively far away from the powder discharge port 106. [ The proximal end portion 512a and the distal end portion 512b are both end portions in the longitudinal direction of the guide surface 512, respectively. The guide surface 512 has a structure in which a hypothetical straight line L2 connecting the proximal end portion 512a and the distal end portion 512b is inclined toward the rotational direction of the discharge inducing member 510 with respect to the radial direction about the powder discharge port .

The guide surface 512 is formed in a concave arc shape to more reliably guide the powder toward the powder discharge port 106 when the powder is pushed toward the powder discharge port 106. Accordingly, the amount of the powder introduced toward the powder discharge port 106 can be further increased by the action of the guide surface 512.

The upper end of the connecting member 520 is connected to the rotating member 230 and the lower end of the connecting member 520 is connected to the discharge inducing member 510.

According to the thus configured discharge inducing member 510 and the connecting member 520, the powder on the bottom surface 103 positioned around the powder discharging opening 106 is guided toward the powder discharging opening 106, and the powder discharging opening 106 So that the amount of the powder remaining around the powder discharge opening 106 can be minimized. Further, the discharge-inducing member 510 can be rotated without a separate power source.

2, 4, and 7, the powder supply device according to the embodiment of the present invention is a powder supply device for powdering powder contained in the powder accommodation chamber 102 by agitating the powder to disperse the powder or attaching to the inner wall of the powder accommodation chamber 102 And a plurality of stir blades 600 for dropping off the powder.

Each of the stir blades 600 protrudes from the connecting member 520 and is rotated together with the connecting member 520 without a separate power source. The stator blades 600 may be arranged so as to protrude from the connecting member 520 in both directions, that is, toward the center of the powder accommodation chamber 102 and toward the inner wall of the powder accommodation chamber 102, respectively. The stator blades 600 facing the inner wall of the powder accommodation chamber 102 are formed to have a length such that the tip ends thereof are located close to the inner wall of the powder accommodation chamber 102, It is preferable from the viewpoint of the dropout action of the powder.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. Further, the technical ideas described in the embodiments of the present invention may be performed independently of each other, or two or more may be implemented in combination with each other.

100: Housing
102: powder receiving chamber
106: Powder discharge outlet
210: discharge port opening / closing member
212: closed end
214: open end
220:
230: rotating member
310: first drive unit (drive means)
320: second driving unit (driving means)
400: disassembly pin
510:
512: guide surface
520: connecting member
600: Stutter blade

Claims (9)

A housing having a powder accommodation chamber and a powder discharge port communicating with the powder accommodation chamber, the powder discharge port being disposed on a bottom surface of the powder accommodation chamber;
A discharge port opening and closing member which is movable in a vertical direction with respect to the powder discharge port in the powder accommodation chamber and which is rotatable about an axis in the vertical direction with respect to the powder discharge port and which opens and closes the powder discharge port, ;
Driving means for moving and rotating the discharge port opening / closing member;
At least one disassembly pin protruding from a front end of the ejection port opening / closing member and positioned in an inner region of the powder ejection opening when the powder is ejected through the powder ejection opening and dispersing the powder while moving together with the ejection opening opening and closing member;
And at least one discharge inducing member which rotates along the periphery of the powder discharging opening on the bottom surface and pushes the powder on the bottom surface located around the powder discharging opening toward the powder discharging opening,
Wherein the discharge-inducing member is provided with a guide surface for pushing the powder toward the powder discharge port in the rotating direction side,
Wherein the guide surface has a proximal end positioned relatively close to the powder discharge port and a distal end positioned relatively far away from the powder discharge port and a virtual straight line connecting the proximal end and the distal end portion is formed in the radial direction about the powder discharge port, Inclined toward the rotational direction of the member,
Powder feeder. The method according to claim 1,
Wherein the disassembly pin is disposed so as to be located at an eccentric position deviated in either direction from the center of the powder discharge port,
Powder feeder. delete delete The method according to claim 1 or 2,
The guide surface is formed in a concave arc-
Powder feeder. The method according to claim 1 or 2,
The powder supply device includes:
A shaft member having the discharge port opening and closing member at its tip end and being rotated in the direction perpendicular to the powder discharge port by the driving means and rotated about an axis in the vertical direction with respect to the powder discharge port;
A rotatable member mounted on the upper portion of the housing so as to be rotatable about the axis, the shaft member being penetrable in a direction perpendicular to the powder discharge port;
A rotation interlocking means for transmitting the rotation force of the shaft member to the rotary member;
Further comprising a connecting member connected to the rotary member and the discharge inducing member at both upper and lower sides to rotate the discharge inducing member together with the rotary member,
Powder feeder. The method of claim 6,
Further comprising a plurality of stir blades protruding from the connecting member and rotating together with the connecting member to stir the powder contained in the powder containing chamber.
Powder feeder. The method according to claim 1 or 2,
The discharge port opening / closing member has a closed end of a tip inserted into the powder discharge port to close the powder discharge port or to be separated from the powder discharge port to open the powder discharge port in accordance with the moving direction with respect to the powder discharge port,
Wherein the disengagement pin is formed of a metal material,
Powder feeder. The method of claim 8,
Wherein the discharge port opening / closing member has an open end provided on a circumference of a groove forming a powder passage between the discharge port and the powder discharge port when the discharge port opening / closing member is inserted into the powder discharge port from the opposite side of the closed end,
Powder feeder.

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