TWI471175B - Apparatus for supplying a powder material - Google Patents

Description

Device for supplying powder materials

The present invention relates to a device for supplying a powder material, and more particularly to a device for supplying a powdery fluorescent material.

A lens of a light-emitting device such as a light-emitting diode is generally molded of a liquid resin, and the liquid resin may include, for example, a silicon resin, a polymethyl pentene resin, or a polyether oxime. A polyether sulfone resin, a polyether imide resin, or the like, a fluorescent material may be added to the liquid resin to determine the color of the liquid resin.

In particular, many fluorescent materials can be used to produce the desired color, which is supplied in a powder form. In general, the fluorescent material can be manually added by the operator, and thus the time required to prepare the liquid resin is also increased. Moreover, the quality of the lens will deteriorate due to the difficulty in supplying an accurate amount of fluorescent material.

According to an embodiment of the present invention, a device for supplying a powder material is provided, which can accurately supply a powder material.

According to an aspect of the present invention, an apparatus for supplying a powder material includes a casing having an inner space for accommodating the powder material, a nozzle being disposed at a lower end of the casing, and the nozzle having an outlet hole for The powder material is supplied downward, an opening and closing member is mounted on the casing, the opening and closing member is moved in the vertical direction in the outlet orifice, and a first driving segment is configured to move the opening and closing member in the vertical direction to open and close the outlet. The injection hole and a second driving section are configured to rotate the nozzle to supply the powder material in the housing downward through the outlet injection hole.

In accordance with an embodiment of the present invention, the nozzle may have a cylindrical outer shape and have a second interior space in communication with the interior space of the housing.

According to an embodiment of the invention, the nozzle may include an inner body having a second inner space, an outer body surrounding the inner body, a bearing disposed between the inner body and the outer body to rotate the inner body in the outer body, and a lower cover It is installed at one lower end of the inner body, and the outlet injection hole can be formed through the lower cover.

According to an embodiment of the invention, a connecting element having an annular outer shape is mounted to the lower end of the housing, and the outer body is inserted into the connecting element.

According to an embodiment of the invention, a lower portion of the inner body may protrude downward from a lower end of the outer body, and a second drive segment portion may be coupled to the lower portion of the inner body.

According to an embodiment of the present invention, the second driving segment portion is coupled to the inner body by a rotating shaft disposed parallel to one side wall of the housing, a driving gear is disposed at a lower portion of the rotating shaft, and a driven gear The utility model is mounted on the lower part of the inner body and is engaged with the driving gear.

According to an embodiment of the invention, the lower cover comprises a ceramic material.

According to an embodiment of the invention, the lower cover comprises zirconia (ZrO ₂ ).

According to an embodiment of the invention, the nozzle may further include at least one rotating pin mounted on the inner body for moving the powder material in the second inner space downward.

According to an embodiment of the invention, the inner body may include an upper body having a fixed inner diameter, and the lower body having an inner diameter gradually decreasing from the upper body downward.

According to an embodiment of the present invention, a groove having a spiral shape may be formed on an inner surface of the upper body.

In accordance with an embodiment of the present invention, the opening and closing member may include a vertical pin extending perpendicularly for insertion into the outlet orifice, wherein a recess is formed on one of the side surfaces of the vertical pin for opening the outlet orifice.

According to an embodiment of the invention, the outlet orifice can be closed by a lower portion of the vertical pin.

According to an embodiment of the invention, the first drive section can vertically reciprocate to open the closure element to repeatedly open and close the outlet orifice.

According to an embodiment of the invention, the opening and closing member may further include a first rod extending perpendicularly from an upper end portion of the vertical pin, a second rod extending vertically from an upper end portion of the first rod, and a cover being mounted on the first portion An upper portion of the two rods, wherein the first rod has a diameter greater than the vertical pin and the second rod has a diameter smaller than the diameter of the first rod.

According to an embodiment of the present invention, the device may further include an upper cover mounted on an upper end of the housing, and a spring disposed between the cover and the upper cover, wherein the upper cover may have a consistent perforation for the second rod to pass through Over.

According to an embodiment of the invention, the upper cover may have a third internal space in which the cover and the spring are attached.

According to an embodiment of the invention, the apparatus may further include a third driving segment coupled to the first driving segment for adjusting the position of the opening and closing member.

According to an embodiment of the present invention, the apparatus may further include a controller for controlling the first driving segment portion, the second driving segment portion and the third driving segment portion according to the weight of the powder material supplied through the outlet injection hole.

According to an embodiment of the present invention, the apparatus may further include a powder material supply slot connected to one side wall of the housing for supplying the powder material to the inner space of the housing.

According to the embodiment of the present invention, the powder material supply device can supply the powder material contained in the casing through the outlet hole of the nozzle, which is opened by the first driving section, and the first driving section can be The controller controls the powder material according to the weight of the supplied powder material to accurately supply the powder material.

Further, the nozzle can be rotated by the second driving section so that the powder material can be stably supplied. Moreover, the outlet orifice is formed in the lower cover, which comprises a ceramic material, so that the wear of the outlet orifice based on the powder material can be reduced or avoided.

The details disclosed in the specific embodiments of the present invention will be described in detail in conjunction with the drawings.

In the following, a number of specific preferred embodiments will be described in detail with reference to the accompanying drawings, which illustrate several embodiments. However, the present invention may be embodied in many different forms and is not limited to the embodiments described below. The embodiments provided herein may be made to provide a more complete and complete disclosure of the scope of the present invention. In the illustration, the size and relative size of the layer and the region may be enlarged to be clearly and clearly displayed.

It can be understood that when an element or layer is described as "on" or "connected to" another element or layer, it can be either directly on or connected to another element or layer. , or intervening on or connected to another component or layer. Conversely, when a component or layer is described as being "directly on" or "directly connected to" another When a component or layer is used, there are no other components or layers in the middle. The same elements will be denoted by the same symbols throughout. As used herein, "and/or" includes any and all combinations of one or more of the listed.

It will be understood that although "first", "second", "third" and the like are used herein to mean different elements, components, regions. (region), layer, and/or section, but these elements, components, regions, layers, and/or segments are not limited by these terms. These words are used only to distinguish the components and components. Or a region, a layer, a layer and/or a segment, and the first element, component, region, layer and/or segment may also be replaced by a second component, component, region, layer and/or segment. Without departing from the teachings of the present invention.

The relative vocabulary of space, such as "lower", "upper" and similar vocabulary, is used herein to make the description easier, as used to illustrate the elements or features shown in the illustration relative to Another element or feature. It will be understood that the spatially relative vocabulary contains different orientations of the device in use or operation, and not only the orientation as illustrated. For example, when the figures are turned upside down, the elements are described as "lower" or "down" and the other element or feature will become "up" to another element or feature, therefore, in the example The vocabulary "under" can encompass both upper and lower orientations, and the device can be turned to different orientations (rotated 90 degrees or other directions), corresponding to the relative spatial descriptions described herein.

The terminology used herein is used exclusively to describe embodiments of the invention, but is not limited thereto. For example, in the specification, the singular forms "a", "an", "the" and "the" It can be further understood that when "comprises" and/or "comprising" is used in the specification, it is used to describe a status feature, an integer, a step, an operation ( The operation, the components and/or the components are present, but one or more other features, integers, steps, operations, components, components and/or groups are not excluded.

Unless otherwise defined, all the nouns (including technical and scientific terms) mentioned in this article have the same meaning as those of those skilled in the art, and it is better understood that these are A noun defined in a general dictionary can be interpreted as having a meaning in its appropriate field that is consistent with its context, rather than being interpreted as an idealized or overly formal judgment, unless so defined in the text. .

The embodiments of the present invention are described in conjunction with a cross-sectional illustration, which is used to understand the schematic diagram of the embodiment (and its intermediate structure), based on which the results of the example change from the appearance, for example, , manufacturing techniques and/or tolerances, which are contemplated. Therefore, the exemplary embodiments are not to be construed as limiting the scope of the particular scope of the scope of the description, but rather the results including the appearance of the error, for example, the error produced by the manufacture. Thus, the regions shown in the figures are a natural schematic, and the appearance does not have to show the true appearance of a portion of the device, nor does it limit the scope of the invention.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing an apparatus for supplying a powder material according to an embodiment of the present invention, and Fig. 2 is an enlarged view showing a nozzle of Fig. 1.

Referring to Figures 1 and 2, an apparatus 10 for supplying a power material 20 in accordance with an embodiment of the present invention is for supplying a powdered phosphor material. More specifically, a power material supply apparatus 10 is used to add a fluorescent material to a liquid resin, which is used to fabricate a lens of a light-emitting device such as a light-emitting diode.

The powder material supply device 10 may include a housing 100 having a first interior space 100A to accommodate the powder material 20, and the housing 100 may have open upper and lower end portions The nozzle 110 has an outlet orifice 110A for supplying the powder material 20 downward and rotatably attached to the lower end of the casing 100.

An opening and closing member 120 may be attached to the housing 100 and movably mounted to the outlet orifice 110A in a vertical direction. The opening and closing member 120 may be coupled to a first driving section 130 that is movable in a vertical direction to open the closing member 120 to supply the powder material 20 downward through the outlet orifice 110A.

The second driving section 150 may be coupled to the nozzle 110 to rotate the nozzle 110 such that the powder material 20 accommodated in the housing 100 is stably supplied through the outlet injection hole 110A, that is, the powder material 20 The first driving segment 130 can be supplied downward through the outlet orifice 110A, and the powder material 20 can be moved downward in the nozzle 110 by the rotation of the nozzle 110.

The nozzle 110 has a cylindrical outer shape and has a second interior space 110B in communication with the first inner space 100A of the housing 100, and the first inner space 100A and the second inner space 110B may have a common central axis. The nozzle 110 may include an inner body 112 having the second inner space 110B, and an outer body 114 disposed to surround the inner body 112. The bearing 116 is disposed on the inner body 112 and the outer body 114. The inner body 112 is rotatable in the outer body 114, and a lower cover 118 is mounted on the lower end of the inner body 112. Here, the outlet injection hole 110A is formed through the lower cover 118.

The inner body 112 and the outer body 114 may have a cylindrical outer shape, and the outer body 114 may be mounted at a lower end of the housing 100. For example, the coupling member 102 has a circular annular shape (circular ring) The shape may be disposed at a lower end of the housing 100, and the outer body 114 may be inserted into the connecting member 102. Still further, a pair of bearings 116 can be disposed between the inner body 112 and the outer body 114 as shown. Alternatively, the outer body 114 can have a rectangular parallelepiped shape. In such an example, a circular through-hole can be formed through the outer body, and the inner body 112 and the bearing 116 can be inserted. Round perforation. That is, the spirit and scope of the present invention are not limited to the outer body 114.

The inner diameter of the inner body 112 may be gradually decreased downward so that the powder material 20 can be easily supplied through the outlet orifice 110A. For example, the inner body 112 can include an upper body 112A having a fixed inner diameter and a lower body 112B having an inner diameter that tapers downward from the upper body 112A.

Furthermore, the inner body 112 can have a length greater than the outer body 114. Therefore, the lower portion of the inner body 112 can protrude downward from the lower end of the outer body 114, and the second driving segment 150 can be combined with the inner body. The lower part of 112 is connected.

The second driving segment portion 150 may have a motor 152, and the second driving segment portion 150 may be connected to the inner body by a rotary shaft 154 (in the vertical direction) disposed parallel to the side wall of the housing 100. 112 is connected, a driving gear 156 is mounted on the lower portion of the rotating shaft 154, and a driven gear 158 is mounted on the lower portion of the inner body 122 and coupled to the driving gear 156. Alternatively, the rotating shaft 154 may be coupled to the lower portion of the inner body 122 by a pair of pulleys and belts.

Meanwhile, the housing 100 may have a rectangular outer shape that extends longitudinally in the vertical direction. Alternatively, the housing 100 can have a cylindrical outer shape that is concentrically disposed with the nozzle 110. That is, the spirit and scope of the present invention are not limited to the outer shape of the housing 100.

The lower cover 118 may include a ceramic material having a relatively high hardness to reduce or avoid wear due to the powder material 20. For example, the lower cover 118 may include zirconia (ZrO ₂ ).

The opening and closing member 120 can include a vertical pin 122 that extends vertically to be inserted into the outlet orifice 110A. A recess 122A may be formed on a side surface of the vertical pin 122 to open the outlet orifice 110A. For example, the outlet orifice 110A can be closed by the lower portion of the vertical pin 122 and opened by the recess 122A.

Figures 3 through 5 show the operation of the opening and closing element in Figure 1.

Referring to Figures 3 and 4, in accordance with an embodiment of the present invention, the first drive section 130 can move the vertical pin 122 in a vertical direction to open and close the exit orifice 110A. For example, the first drive segment portion 130 can move the vertical pin 122 downward to open the outlet orifice 110A, which is originally closed by the lower portion of the vertical pin 122, and the outlet orifice 110A is opened by the recess 122A. Moreover, the first driving segment portion 130 can move the vertical pin 122 upward to close the outlet injection hole 110A, and the outlet injection hole 110A is closed by the lower portion of the vertical pin 122.

In another embodiment of the present invention, the outlet orifice 110A can be opened by moving the vertical pin 122 downward as shown in FIG. 3, and the first driving segment 130 can then move the vertical pin 122 further downward to close. The opening nozzle hole 110A is opened as shown in Fig. 5, that is, when the vertical pin 122 is moved downward by the first driving segment portion 130, the outlet nozzle hole 110A is opened by the recess portion 122A, and then vertically The intermediate portion of the pin 122 or the portion of the vertical pin 122 that is higher than the recess 122A is closed. Further, although not shown, when the vertical pin 122 is moved upward by the first driving segment portion 130, the outlet is marked. Hole 110A will open due to recess 122A and will then be closed by the lower portion of vertical pin 122.

The first driving section 130 vertically reciprocates the vertical pin 122, thereby repeatedly opening and closing the outlet orifice 110A, and the powder material 20 is intermittently supplied through the outlet orifice 110A. More specifically, the speed at which the first drive section 130 reciprocates the vertical pin 122 is adjustable so that the supply amount of the powder material 20 can be accurately adjusted. That is, the supply of the powder material 20 can be accomplished in a pulse form by the reciprocating movement of the vertical pin 122, and the supply rate and supply amount of the powder material 20 can follow the reciprocating speed of the vertical pin 122. And change.

At the same time, the vertical pin 122 may comprise a ceramic material having a relatively high hardness to reduce or avoid wear due to the powder material 20. For example, the vertical pin 122 can include zirconia (ZrO ₂ ).

Referring again to FIG. 1, the opening and closing member 120 may include a first rod 124 extending perpendicularly from an upper end portion of the vertical pin 122, and a second rod 126 extending vertically from an upper end portion of the first rod 124. And a cap 128 is mounted on the upper portion of the second rod 126. The first rod 124 can have a diameter that is greater than the vertical pin 122, and the second rod 126 can have a diameter that is less than the first rod 124.

An upper cover 104 may be disposed at an upper end of the housing 100 and has a through hole to allow the second rod 126 to pass therethrough, and a spring 106 may be disposed between the upper cover 104 and the cover 128. More specifically, the upper cover 104 may have a third interior space 104A in which the cover 128 and the spring 106 are mounted, and the through hole may be formed via the lower end of the upper cover 104. For example, the upper cover 104 can be inserted into the first inner space 100A of the housing 100, as shown in FIG. 1 , where the second rod 126 can extend through the through hole and the spring 106 is disposed in the third inner space. In 104A, the cover 128 is attached to the upper end of the second rod 126.

The spring 106 is used to move the opening and closing member 120 upward after the opening and closing member 120 is moved downward by the first driving portion 130. That is, the opening and closing member 120 can be elastically restored by the spring 106 (elastic restoring) Force) and move up.

In this example, the first drive segment portion 130 can include a spline shaft 132 extending perpendicularly from the upper surface of the cover 128, a spline 134 coupled to the pinch shaft 132, and a cam plate 136. The driving plate 138 is disposed on the upper end of the bolt shaft 132, the driving plate 138 is disposed on the cam plate 136, and a plurality of balls 140 are annularly disposed between the cam plate 136 and the driving plate 138, and the fixing member ( A retainer 142 is used to maintain the ball 140, a driving shaft 144 is coupled to the active plate 138, and a motor 146 is coupled to the drive shaft 144.

Fig. 6 is a plan view showing the cam plate in Fig. 1.

Referring to Fig. 6, a groove 136A is formed on the upper surface of the cam plate 136 in the circumferential direction, and the ball 140 is moved in the circumferential direction along the groove 136A, and more particularly, the bottom surface of the groove 136A. The sine wave form is formed in the circumferential direction, whereby the closing element 120 is opened by vertical reciprocating movement.

Alternatively, the first drive section 130 can open the closure element 120 in a vertical reciprocating motion using a generally cam and camshaft. That is, the spirit and scope of the present invention are not limited to the appearance of the first driving segment portion 130.

Referring again to FIG. 1, the first drive section 130 can include a base member 148, and the pinch 134 and motor 146 can be mounted to the base member 148.

The powder material supply device 10 may further include a third driving section 160 coupled to the first driving segment portion 130 to adjust the position of the opening and closing member 120. For example, the third drive section 160 can include a ball block 162 coupled to the base member 148, a ball screw 164 coupled to the ball block 162, and a motor 166 to cause the ball screw 164 Rotate.

More specifically, in the example in which the above-described cam plate 136, active plate 138, and ball 140 are used, the stroke distance of the vertical pin 122 is constant, that is, the supply and supply of the powder material 20 are satisfied. The rate can vary depending on the position (the height of the vertical pin 122). The third driving section 160 can adjust the height of the vertical pin 122 to change the supply amount and supply rate of the powder material 20.

A controller 170 can be used to control the first drive section 130, the second drive section 150, and the third drive section 160. More specifically, the controller 170 can control the operation of the third drive section 160 to adjust The height of the vertical pin 122 and the operation of the second drive section 150 can be controlled to adjust the rotational speed of the nozzle 110. Moreover, the controller 170 can control the operation of the first driving segment portion 130 to accurately adjust the supply amount and the supply rate of the powder material 20.

The controller 170 can control the operations of the first driving segment portion 130, the second driving segment portion 150, and the third driving segment portion 160 according to the supply amount of the powder material 20, for example, the container 30 can be disposed on the powder. Below the bulk material supply device 10 to receive the powder material 20 supplied via the outlet orifice 110A, the weight of the container 30 and the supplied powder material 20 can be measured by a weight sensor 40, such as a load cell sensor. The controller 170 may be coupled to the weight sensor 40 and may control the first driving segment 130 according to the weight of the container 30 and the supplied powder material 20 measured by the weight sensor 40, The operation of the second drive segment portion 150 and the third drive segment portion 160.

Meanwhile, as shown in FIGS. 3 to 5, the powder material 20 can be supplied through the outlet injection hole 110A by the vertical reciprocating movement of the opening and closing member 120, where the opening member is opened when the powder material 20 is supplied. 120 will not rotate, and as shown in Fig. 3, the direction in which the powder material 20 is supplied does not change, so that even if the inlet of the container 30 is relatively small, the powder material 20 can be easily supplied to the container. 30 in.

Referring to FIG. 1 again, the powder material supply device 10 may further include a powder material supply container 180, which may be connected to one side wall of the housing 100, thereby supplying the powder material 20 to the housing 100. The first internal space 100A.

Figure 7 is a cross-sectional view showing another embodiment of the nozzle of Figure 1.

Referring to FIG. 7, a nozzle 210 may include an outer body 212 mounted on a lower end of the housing 100, and an inner body 214 mounted in the outer body 212 and having a second internal space. (second interior space) 210B, a bearing 216 is disposed between the outer body 212 and the inner body 214, and a lower cover 218 is disposed at a lower end of the inner body 214 and has an outlet orifice 210A to supply the powder material 20. The inner body 214 can include an upper body 214A having a fixed inner diameter and a lower body 214B having an inner diameter that tapers downwardly.

Meanwhile, the nozzle 210 may include at least one revolving pin 220 mounted on the inner body 214 to move the powder material 20 in the second inner space 210B downward. For example, the nozzle 210 can include two rotating pins 220 mounted to the inner body 214 and extending upward as shown in FIG.

Although the rotation pin 220 extends in the vertical direction as shown in FIG. 7, the nozzle 210 may further include a rotation pin extending in a horizontal direction toward a central axis of the nozzle 210. That is, the spirit and scope of the present invention are not limited to the direction in which the rotating pin extends.

Figure 8 is a cross-sectional view showing still another embodiment of the nozzle of Figure 1.

Referring to FIG. 8, a nozzle 310 may include an outer body 312 mounted on a lower end of the housing 100, and an inner body 314 mounted in the outer body 312 and having a second internal space. (second interior space) 310B, a bearing 316 is disposed between the outer body 312 and the inner body 314, and a lower cover 318 is disposed at a lower end of the inner body 314 and has an outlet orifice 310A to supply the powder material 20. The inner body 314 can include an upper body 314A having a fixed inner diameter and a lower body 314B having an inner diameter that tapers downwardly.

Meanwhile, a groove 314C having a spiral shape may be formed on the inner surface of the upper body 314A to move the powder material 20 in the second inner space 310B downward.

According to the embodiment of the present invention described above, the powder material 20 accommodated in the casing 100 can be automatically supplied through the outlet injection hole 110A by the opening of the first driving segment portion 130, and the supply amount of the powder material 20 is The supply rate can be controlled by the controller 170, and therefore, the supply of the powder material 20 of the present invention can be accurately performed compared to the prior art.

Further, since the nozzle 110 can be rotated by the second driving segment portion 150, the powder material 20 can be stably supplied, and more particularly, the lower cover 118 and the vertical pin 112 can include a ceramic material such as zirconia ( ZrO ₂ ), to have a relatively high hardness, the exit orifice 110A and the vertical pin 112 can reduce or avoid wear due to the powder material 20.

Further, when the vertical pin 112 does not rotate during the supply of the powder material 20, the supply direction of the powder material 20 does not change. Therefore, although the inlet of the container 30 into which the powder material 20 is supplied is relatively small, the powder material 20 can be easily supplied into the container 30.

Although the present invention has been disclosed in the above embodiments, it is understood that it is not intended to limit the invention, and those skilled in the art can make various other modifications in accordance with the above description, but these changes still belong to the present invention. In the spirit of the invention, these changes are still within the scope of the patents defined below.

10. . . Powder material supply device

20. . . Powder material

30. . . container

40. . . Weight sensor

100. . . case

100A. . . First internal space

102. . . Connecting element

104. . . Upper cover

104A. . . Third internal space

106. . . spring

110. . . nozzle

110A. . . Exit injection hole

110B. . . Second internal space

112. . . Internal ontology

112A. . . Upper body

112B. . . Lower body

114. . . External body

116. . . Bearing

118. . . lower lid

120. . . Opening and closing component

122. . . Vertical pin

122A. . . Concave

124. . . First shot

126. . . Second shot

128. . . cover

130. . . First drive section

132. . . Bolting shaft

134. . . Bolt

136. . . Cam plate

136A. . . Groove

138‧‧‧Active board

140‧‧‧ balls

142‧‧‧Fixed parts

144‧‧‧Active shaft

146‧‧‧ motor

148‧‧‧Base components

150‧‧‧Second drive section

152‧‧‧ motor

154‧‧‧Rotary axis

156‧‧‧Drive gear

158‧‧‧passive gear

160‧‧‧The third drive section

162‧‧‧ balls

164‧‧‧Ball screw

166‧‧‧Motor

170‧‧‧ Controller

180‧‧‧ powder material supply tank

210‧‧‧Nozzles

210B‧‧‧Second internal space

212‧‧‧External ontology

214‧‧‧ internal ontology

214A‧‧‧Ontology

214B‧‧‧Underlying

216‧‧‧ bearing

218‧‧‧Under the cover

220‧‧‧Rotary pin

310‧‧‧Nozzles

310B‧‧‧Second internal space

312‧‧‧External ontology

314‧‧‧ internal ontology

314A‧‧‧Ontology

314B‧‧‧Underlying

314C‧‧‧ Groove

316‧‧‧ bearing

318‧‧‧Under the cover

1 is a schematic view showing an apparatus for supplying a powder material according to an embodiment of the present invention;

Figure 2 is an enlarged view showing the nozzle in Figure 1;

Figures 3 to 5 are schematic views showing the operation of the opening and closing element in Fig. 1;

Figure 6 is a plan view showing the cam plate in Figure 1;

Figure 7 is a cross-sectional view showing another embodiment of the nozzle of Figure 1;

Figure 8 is a cross-sectional view showing still another embodiment of the nozzle of Figure 1.

10. . . Powder material supply device

20. . . Powder material

30. . . container

40. . . Weight sensor

100. . . case

100A. . . First internal space

102. . . Connecting element

104. . . Upper cover

104A. . . Third internal space

106. . . spring

110. . . nozzle

110A. . . Exit injection hole

120. . . Opening and closing component

122. . . Vertical pin

122A. . . Concave

124. . . First shot

126. . . Second shot

128. . . cover

130. . . First drive section

132. . . Bolting shaft

134. . . Bolt

136. . . Cam plate

138. . . Active board

140. . . Ball

142. . . Fastener

144. . . Drive shaft

146. . . motor

148. . . Base element

150. . . Second drive section

152. . . motor

154. . . Rotary axis

156. . . Drive gear

158. . . Passive gear

160. . . Third drive section

162. . . Ball block

164. . . Ball screw

166. . . motor

170. . . Controller

180. . . Powder material supply tank

Claims (19)

An apparatus for supplying a powder material, comprising: a casing having an inner space for accommodating the powder material; and a nozzle mounted on a lower end of the casing, the nozzle having an outlet hole for downward supply a powder material; an opening and closing member mounted to the housing, the opening and closing member moving in a vertical direction at the outlet orifice; a first driving segment for moving the opening and closing member in a vertical direction Opening and closing the outlet orifice; and a second driving section for rotating the nozzle to supply the powder material in the housing downward through the outlet orifice; wherein the opening and closing element comprises a vertical pin And extending vertically to be inserted into the outlet injection hole, the vertical pin having a recess formed on one side surface thereof for opening the outlet injection hole. The device of claim 1, wherein the nozzle has a cylindrical outer shape and has a second interior space in communication with the interior space of the housing. The device of claim 2, wherein the nozzle comprises: an inner body having the second inner space; an outer body surrounding the inner body; and a bearing disposed on the inner body and the outer body Interacting the inner body in the outer body; and a lower cover mounted on a lower end of the inner body, the lower cover having the Exit the injection hole. The device of claim 3, further comprising a connecting member having an annular outer shape mounted to the lower end of the housing, the outer body being inserted into the connecting member. The device of claim 3, wherein a lower portion of the inner body protrudes downward from a lower end portion of the outer body, and the second driving segment portion connects the lower portion of the inner body. The device of claim 5, wherein the second driving segment is coupled to the inner body by a rotating shaft disposed parallel to a side wall of the housing, and a driving gear is mounted on the rotating A lower portion of the shaft and a driven gear are mounted on the lower portion of the inner body and coupled to the driving gear. The device of claim 3, wherein the lower cover comprises a ceramic material. The device of claim 7, wherein the lower cover comprises zirconia (ZrO ₂ ). The device of claim 3, wherein the nozzle further comprises: at least one rotating pin disposed on the inner body for moving the powder material in the second inner space downward. The device of claim 3, wherein the inner body comprises: an upper body having a fixed inner diameter; and a lower body having an inner diameter gradually tapered from the upper body downward. The device of claim 10, wherein a groove having a spiral shape is formed on an inner surface of the upper body. The device of claim 1, wherein the outlet orifice is closed by a lower portion of the vertical pin. The device of claim 1, wherein the first driving segment reciprocally reciprocates the opening and closing member to repeatedly open and close the outlet orifice. The device of claim 1, wherein the opening and closing member further comprises: a first rod extending perpendicularly from an upper end portion of the vertical pin, the first rod having a diameter larger than the vertical pin; a second rod extending perpendicularly from an upper end of the first rod, the second rod having a diameter smaller than the diameter of the first rod; and a cover mounted on an upper portion of the second rod. The device of claim 14, further comprising: an upper cover mounted on an upper end of the housing, the upper cover having a consistent perforation for passing the second rod; and a spring, setting Between the cover and the upper cover. The device of claim 15, wherein the upper cover has a third internal space, and the cover and the spring are mounted therein. The device of claim 1, further comprising: a third driving segment connected to the first driving segment for adjusting a position of the opening and closing member. The device of claim 17, further comprising: A controller controls the first driving segment portion, the second driving segment portion and the third driving segment portion according to a weight of the powder material supplied through the outlet orifice. The device of claim 1, further comprising: a powder material supply slot connected to a side wall of the housing for supplying the powder material to the inner space of the housing.