JPH0473531B2 - - Google Patents

Description

16. The machine according to claim 7, further comprising a third cam 355 for moving to a predetermined axial position.

17 Claim 1, wherein the second gear 213 and the third gear 275 are bevel gears.
The machine described in paragraph 6.

[Detailed description of the invention]

INDUSTRIAL APPLICATION FIELD OF THE INVENTION The present invention relates to a machine that measures and supplies a predetermined amount of powder into a container, particularly a machine used in the pharmaceutical industry.

BACKGROUND TECHNOLOGY This type of machine currently on the market consists of a rotating tank containing a powder layer and a rotating drum member placed on the top of the tank. A metering device is supported at the bottom of each of the plurality of pins. Axial movement of the pin is determined by a first cam that is coupled to the upper end of the pin. Each metering device includes a hollow cylindrical member containing a piston coaxial with each pin. The piston slides in the axial direction within the cylindrical member by a second cam interlocking with the upper part of the piston. Since the cylindrical member is supported by a corresponding pin, the cylindrical member rotates about the axis of the drum member and is slid in the axial direction by a first cam that is interlocked with the pin. The machine also includes a plurality of successive containers adapted to fill powder drawn from an annular rotating tank eccentric to the axis of the drum member.

Machines currently available on the market have several major drawbacks.

First, there is a structure between a part of the piston and an annular step on the inner surface of the hollow cylindrical member, which prevents the piston from sliding in the axial direction and returns the piston to a predetermined position when the interaction with the second cam ends. A spring is provided. During each revolution of the drum member, this spring is impacted twice: once when the powder is compressed and once when it is ejected. Therefore, it is only a matter of time before the spring breaks, and since the breakage of the spring cannot be recognized from the outside, it may take a long time for the operator to notice that the spring is broken. However, the machine continues to operate during this time and the metering device affected by the broken spring is no longer able to draw the correct amount of powder to fill the container. Furthermore, the metering chamber formed inside the hollow cylindrical member influences the loosening between the hole in the drum member and the pin therein caused by the wide gap between the first cam and the lower end of the metering chamber. There is also a risk of being exposed. For this reason, the amount of powder drawn out from the annular rotating tank is not necessarily equal for all metering devices. Additionally, since the pin, hollow cylindrical member and piston slide coaxially and axially relative to each other, a self-lubricating bushing is obviously used to facilitate sliding. However, as the usage time increases, the bushing, which should theoretically be protected by a suitable oil seal, becomes more susceptible to oil leakage. However, these bushings are subject to wear and oil slicks can seep through the oil seal and into the circular powder tank, contaminating the powder and forcing it to be discarded.

Problems to be Solved by the Invention The object of the present invention is to provide a machine for measuring and feeding powder into containers without the above-mentioned drawbacks, that is, it is possible to draw out the same amount of powder from all measuring devices. The object of the present invention is to provide a machine that can prevent contamination of powder in a rotating tank by lubricating oil and can be manufactured at low cost.

Further objects and advantages of the present invention will become apparent from the following description.

Means for Solving the Problems The machine for measuring and feeding powder into containers according to the present invention has the following features.

A plurality of first holes are provided in an annular portion around the rotating drum member whose axis is perpendicular to the support surface, and a plurality of first holes
A pin is axially slidably housed in each of these holes and rotates with the drum member about the axis of the drum member, and each of these pins supports a metering member and directs its own movement thereto. It is designed to convey.

A hollow cylindrical member is supported by each metering member, and each hollow cylindrical member rotates about the axis of the drum member and slides in the axial direction together with each first pin.

One rod having an axis parallel to the axis of the corresponding first pin is housed in a recess in each metering member, the lower portion of each rod is housed in a hollow cylindrical member, and each rod has an axis parallel to the axis of the corresponding first pin. The first pin rotates about the axis of the drum member and slides in the axial direction together with the corresponding first pin.

A rotating tank containing a powder layer is provided, and a predetermined amount of powder is drawn out from the powder layer by forming a measuring chamber at the lower end of the hollow cylindrical member.

during operation, moving the rod to a position different from the axial position when sliding in the axial direction with the first pin to form a metering chamber in the hollow cylindrical member; powder in the metering chamber; In order to carry out the steps of compressing the powder and discharging this powder into the container, the axial movement of the rod is normally equal to the axial sliding speed of the corresponding first pin in conjunction with the required portion of the rod. Control means are provided for changing the sliding speed a predetermined number of times.

Embodiments Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. Note that this example does not limit the scope of the present invention.

In FIG. 1, reference numeral 1 designates a machine for metering and dispensing a predetermined amount of powder into a container 2, usually the lower half of a capsule. The machine 1 comprises a plurality of metering members 3 adapted to draw powder from an annular rotating tank 4 and place it into a respective container 2 .

As shown in FIG. 2, the machine 1 includes a bottom plate 5 provided with a through hole 6, and an annular member 8 extending upward is fixed to the periphery of the hole 6 by screws 7. . A coupling ring 11, which fits into the hole 6, is welded to the annular member 8. More specifically, the upper end of the coupling ring 11 projects upward from the bottom plate 5 and is fixed to the inner surface of the lower end of the annular member 8. Fixed.
A hole 14 coaxial with the hole 6 is provided at the center of the plate 13, and the center hole 14 fits into the lower part of the hollow cylindrical member 15. Hollow cylindrical member 15 has hole 14
It is integrally welded to the plate 13 around the upper and lower edges. The hollow cylindrical member 15 is coaxial with the coupling 11 and the annular member 8 .

A space formed by the inner surface of the annular member 8 and the outer surface of the cylindrical member 15 accommodates a hollow cylindrical drum member 16 that is coaxial with these members 8 and 15 and rotates about its own axis. A plurality of first through holes 17 are provided in the annular portion around this member 16 . A first pin 18 is accommodated in each of these holes 17, and these pins 18 are
It rotates together with the drum member 16 around the axis of the drum member 16 and slides back and forth in the direction of its own axis. Each pin 18 supports a corresponding metering member 3 at its upper end protruding from each hole 17. Near the lower end of each pin 18, a first
A diametrical hole 21 is provided which fits one end of the peg 22, and the other end of the peg 22 is connected to the annular member 8.
It extends toward the direction and supports two bearings 23 and 24. The outer bearing 24 is connected to the first cam 2 of the annular member 8.
5, and this cam 25 is a sinusoidal groove (see FIG. 4). The bearing 24 is the cam 25
Since the pin 18 is fitted with the drum member 16
It slides in the axial direction while rotating around its axis. A plurality of elongated through holes 27 are provided in the portion of the drum member 16 between the two members 8 and 15, and the end of the peg 22 passes through these elongated holes 27 to the cam 2.
It is mated with 5. The slots 27 are equal in number to the pins 18 and their longitudinal axes are parallel to the axis of the drum member 16. The inner bearing 23 fits into the elongated hole 27. The lower end of the drum member 16 has a center hole 31
The cylindrical member 15 is fitted into this hole 31 via a bushing 32. Further, the lower part of each pin 18 is accommodated in a plurality of holes 33 provided in this plate 28. Cylindrical member 15
A first rotary tank 41 coaxial therewith is housed, and the lower end of this shaft 41 protrudes from the member 15 and is connected to the rotary shaft of the first electric motor by a gear (not shown). The upper end of the rotating shaft 41 projects upward from the cylindrical member 15, and the upper end of the drum member 16 is provided with an inward flange 42 that fits into the upper end of the shaft 41. Drum member 16
is fixed to the shaft 41 with a plurality of screws 43 passed from above through a hole 44 around the flange 42 and screwed into a threaded hole 45 in an annular projection 46 at the upper end of the shaft 41;
It rotates by a shaft 41. Two bearings 51 are housed at both ends of the cylindrical member 15 to hold the rotating shaft 41 at the center. An annular groove 52 is provided on the inner surface of the upper end of the cylindrical member 15 to support a disk 53 to which a thrust bearing 54 is attached. is supported. An annular projection 57 projects outward from the middle portion of the drum member 16, and a downwardly directed annular groove 58 is provided in the bottom wall of the projection 57 to accommodate the upper end of the annular member 8. A first ring 61 is housed in the top wall of the annular projection 57, and this ring 61
The thin upper end of the annular groove 63 of the second ring 64
is housed within. A side surface of the second ring 64 is provided with an annular groove 65 that fits into the chain 66 . The chain 66 consists of a plurality of rings 67 connected to each other, and a container 2 with an open top is fitted inside each ring 67. The second ring 64 includes a peg 68 whose one end extends outward from the hole 71 of the drum member 16 and contacts the top wall of the ring 64.
It is held in the above position and prevented from moving upward. The outer surface of the upper end of the drum member 16 is provided with a plurality of first grooves 73 adapted to accommodate a portion of the metering member 3 for a limited period of time corresponding to the stage in which the powder is introduced into the container 2. There is. Also, during the phase in which the powder is discharged from the metering element 3, the first part of the metering element 3 fits into the groove 73 to ensure perfect centering of the metering element 3 during this phase, while the metering element 3 The second part of the member 3 is at the upper end of the drum member 16 and assists the corresponding pin 18 in functioning as a support for the metering member 3. Tank 4
is located at the upper end of drum member 16 and member 1
It is eccentric to 6. In addition, the tank 4 has a bottom wall 8
3 and two concentric annular walls 84 that are thicker on the outside than on the inside. The bottom plate 5 supports three rotating columns 85 and 86, as shown in FIG. The second column 85 includes a protrusion 87 extending toward the drum member 16 , and a block 91 is attached to the protrusion 87 with a screw 88 . A peg 92 is supported on the block 91, and one end of the peg 92 is received in an annular groove 94 on the outer surface of the outer annular wall 84 via a bearing 93. Block 91 is
It supports another peg 95 whose axis is parallel to the axis of the rotating shaft 41. The lower end of this peg 95 fits into the inner race of a bearing 96, and the outer race of this bearing 96 interlocks with the outer surface of the outer annular wall 84. First column 8
6 has a hollow cylindrical shape and extends upward and downward through the hole 105 in the bottom plate 5. A second rotating shaft 111 is housed in the column 86, and this shaft 11
The lower end of the motor 1 is connected to the rotating shaft of the second electric motor by a gear. Two bearings 11 are provided at both upper and lower ends of the column 86 to hold the rotating shaft 111 at the center.
2 is provided. A first gear 121 that meshes with teeth 124 on the outer surface of the outer annular wall 84 is fixed to the upper end of the rotating shaft 111 . Although not shown, a plate on the column 86 has two pegs similar to the peg 92 that supports the bearing 93 and a bearing 96.
It supports two pegs similar to the peg 95 that supports the. The two sets of three bearings 93 and 96 are both arranged 120 degrees apart from the axis of the tank 4.
The bearing 93 supports the tank 4 and at the same time allows the tank 4 to rotate around its own axis.The function of the bearing 96 is to keep the center of the tank 4 constant and prevent the swing of the tank 4. The objective is to prevent this and at the same time make the tank 4 rotatable.

As shown in FIG. 3, the metering member 3 has a pin 18
Consisting of a first body 131 fixed to the upper end and a second body 132 supported by the first body 131,
The second main body 132 is provided with a hole (recess) 133 in which a cylindrical rod 134 that is slidable in the axial direction is housed. The first main body 131 has a prismatic shape, and a hole 135 into which the upper end of the pin 18 fits is provided in the bottom wall of the first main body 131 (see FIG. 2). First body 131
is also provided with a second hole 136 whose axis is perpendicular to the axis of the pin 18 and into which a projection 137 protruding from the second body 132 is fitted. First body 1
The top wall of the hole 31 is connected to the hole 136 and has a hole 136 connected to the hole 136.
A hole 138 is provided having an axis perpendicular to the axis of. A second peg 141 is accommodated in this hole 138 , and a lower portion 142 is attached to this peg 141 .
extends a little into the hole 136 and fits into the recess 143 of the protrusion 137. Peg 141 also includes an intermediate portion 144 extending above hole 138 and having a diameter smaller than lower portion 142 and an upper portion 145 having a larger diameter than intermediate portion 144 . The upper portion of hole 138 is threaded and an externally threaded cap 146 fits therein. This cap 146 has a head 14 located outside the hole 138 and a peg 141.
A through hole 148 for accommodating an intermediate portion 144 of. Around the lower part of the intermediate portion 144 inside the hole 138 there is a first cap whose upper end is in contact with the cap 146 and whose lower end is in contact with the lower portion 142 of the peg 141.
A spring 151 is provided. Spring 151 forces peg 141 downwardly so that its lower portion 142 fits into recess 143 in projection 137 . The lower portion 142 also has a through hole 1 which is fitted with a peg 153 that prevents rotation of the peg 141.
It is equipped with 52. The second body 132 includes the protrusion 13
7 into the hole 136, it is fixed to the first main body 131. The front part of the protrusion 137 is tapered, and when inserted, the protrusion 137 is tapered into the recess 14.
3 matches the hole 138 and the lower part 1 of the peg 141
This taper allows peg 14 to mate with peg 42.
1 is pushed up. A prismatic portion 155 extends downward adjacent to one side edge of the bottom wall of the first body 131, and the prismatic portion 155 is a side wall continuous with the side wall of the first body 131 in which the hole 136 is provided. It is equipped with During the powder ejection stage, the prismatic portions 155 fit into the corresponding grooves 73, while the bottom wall of the first body 131 is on the top wall of the drum member 16.
Two plate-like parts 156 extend toward the second main body 132 from a wall formed by the side wall of the first main body 131 and the side wall of the prismatic part 155 continuous therewith,
The two plate-like parts 156 are arranged in a V-shape.
It is located in two plan views that converge at a point. 1st
A hollow cylindrical member 161 is provided on the side wall of the main body 131 immediately below the upper end of the plate-like portion 156, as will be described in detail later.
recess 15 that fits with a portion of annular upper end portion 158 of
7 is provided.

The second body 132 has a prismatic upper portion 163 from which extends a protrusion 137 that fits into the upper portion of the side wall of the first body 131 .
Along the upper portion 163, the hole 133 is provided. The second body 132 also includes the lower portion 1
64 from the side wall of the lower portion 164.
Two plate-shaped portions 165 extend toward the first main body 131 . These two plate-shaped parts 165 are combined with the plate-shaped part 156 of the first main body 131 to form a cylindrical recess 166 in the shape of extending the hole 133 downward. Similarly to the recess 157, a recess 167 is provided in the side wall of the second body 132 and is adapted to accommodate a portion of the upper end portion 158 of the cylindrical member 161. The cylindrical member 161 has an upper portion 168 within the recess 166 and an upper portion 1 outside the recess 166.
Central portion 171 with smaller inner and outer diameters than 68
and a lower portion 172 whose inner diameter is smaller than that of the central portion 171 and whose outer diameter gradually decreases. A recess 166 is located between the upper portion 168 and the central portion 171.
There is a short intermediate section 173 located within, the inner diameter of which is equal to that of the central section 171 and the outer diameter equal to that of the upper section 168.

The rod 134 consists of two coaxial cylindrical sections 175, 176 connected together. In more detail,
Portion 175 is disposed above portion 176 and includes hole 1.
33 and is housed inside the top of upper portion 168 of cylindrical member 161, while portion 176 is located inside member 16.
It is accommodated in the remaining part of 1. Upper part 17
5 is provided with a head 177 located outside the bore 133, and the lower end of the upper part 175 is provided with a second groove 178 perpendicular to the axis of this part 175 itself. The bottom wall of the head 177 is flat, and the top wall is semicircular with an upwardly convex shape. The groove 178 forms a coaxial semi-cylindrical plate portion 181 at the lower end of the upper portion, and the plate portion 181 is provided with a third radial groove 182. The lower portion 176 includes a semi-cylindrical projection 183 at the upper end housed in the groove 178 , a small diameter short cylindrical portion 184 fitted in the groove 182 , and a cylindrical member 16 .
The cylindrical part 18 is housed in the lower part of the upper part 168 of 1, in the middle part 173 and in the central part 171.
5 and a cylindrical lower end portion 186 accommodated in the lower part of the central portion 171 and the lower portion 172 of the cylindrical member 161 are provided in this order from top to bottom. The diameter of the lower end portion 186 is smaller than that of the cylindrical portion 185. The lowest end 187 of the lower portion 176 is the lower end 18
6 and its diameter is slightly larger than the lower end 186. The hole 133 around the upper part 175 of the rod 134 has three rings 188, 191, 192 arranged in series along this part 175.
is accommodated. Rings 188 and 192 are respectively disposed above and below and are made of metal, and ring 191 is disposed in the middle adjacent projection 137 and is preferably made of plastic.
On the longitudinal axis of the protrusion 137, the second body 13
A third through threaded hole 193 is provided coaxially with the radial hole 194 of the upper portion 163 of 2. hole 194
A second spring 195 is accommodated in a portion of the hole 193 and is compressed between a corresponding portion of the intermediate ring 191 and a threaded pin 196 screwed into the remaining threaded portion of the hole 193. . upper and lower ring 1
88, 192 serve to hold the rod 134 centered, and the middle ring 191, with the help of a spring 195, holds the rod 134 in the absence of external interference (detailed later). Reliable tracking of the pin 18 and thus of the entire metering member 3 is ensured.

As shown in FIG. 1, the columnar body 85 supports a top plate 201 parallel to the bottom plate 5. As shown in FIG. The top plate 201 consists of two parts 202 and 203 connected by a hinge, one part 202 is fixed to the column 85,
The other part 203 rotates about the hinge part. A coupling ring 326 is supported on the portion 203 of the top plate 201 and is coaxial with the cylindrical member 161 and is rotatable and axially slidable. The coupling ring 326 has two cams 337, 3 that draw a circular arc.
55 (see Figure 4). 3rd cam 3
55 is provided with a protrusion 359 having a slightly downwardly convex outer contour. In operation, cam 337
is interlocked with the bottom of head 177 of rod 134, while the semicircular top of head 177 is interlocked with the bottom profile of cam 355. Portion 203 also supports two cylindrical members 208, 272, and circumferential member 2
The lower ends 212, 274 of 08, 272 support pins 251, 278, respectively. pin 25
1,278 have idle bevel gears 213 and 27, respectively.
5 is installed. Bevel gears 213, 275
is preferably made of plastic and is adapted to interlock with the head 177 for sliding the rod 134.

The operation of drawing out a predetermined amount of powder from the annular rotating tank 4 and putting it into the container 2 consists of the following steps.

The metering member 3 is rotated by the pin 18 housed in the hollow cylindrical member 16 and slides downward in the axial direction, so that the metering member 3 moves under the cylindrical member 161 until the lowermost end 187 of the rod 134 contacts the upper surface of the powder layer. side part 17
2 and the lower end 186 of the rod 134 move at the same speed to the tank 4.
The first step to go inside.

While the axial sliding of the rod 134 is prevented by the engagement of the head 177 and the cam 337 and the lowermost end 187 of the rod 134 remains in contact with the upper surface of the powder layer, the cylindrical member 161 is A second step in which the lower portion 172 is submerged into the powder bed to form an internal metering chamber of predetermined height.

Immediately after the metering chamber is formed, the third step is to slide the rod 134 downward at the same speed as the cylindrical member 161 by engagement of the head 177 of the rod 134 with the bottom of the cam 355.

When the lower end of the cylindrical member 161 reaches the bottom of the tank 4 and its axial sliding is blocked, the engagement between the head 177 of the rod 134 and the second bevel gear 213 moves the rod 134 further downward in the axial direction. The fourth step is to lower the height of the measuring chamber and compress the powder contained in the chamber.

The entire measuring member 3 slides upward, and the cylindrical member 1
61 and the rod 134 are separated from the tank 4 in the fifth stage.

Within the space formed by the inner annular wall 84 of the tank 4, the metering member 3 slides downward, and the prismatic portions 155 of the first body 131 fit into the respective grooves 73 of the drum member 16, and the first the sixth stage, in which the bottom wall of the main body 131 is located at the upper end of the drum member 16 and the lower part 172 of the cylindrical member 161 is located directly above the container 2;

When the axial sliding of the cylindrical member 161 is prevented, the head 177 of the rod 134 and the third bevel gear 27
5, the rod 134 is connected to the cylindrical member 161.
A seventh step of discharging the powder into the container 2 by sliding the powder axially downward until the lowermost end 187 protrudes.

The metering member 3 first slides upward and then slides downward, and in order to continue the work, the cylindrical member 161
and the eighth step in which the rod 134 enters the tank 4.

During the second stage, i.e. the formation of the metering chamber, the metering chamber is simultaneously filled with powder from tank 4. Between the third and fourth stages, the rod 134 slides downward slightly faster than the cylindrical member 161, slightly opening the metering chamber in order to expel the internal air and ensure homogenization of the powder. There may also be an intermediate stage of narrowing down to . The purpose of the compression in the fourth stage is to create friction between the powder and the side wall inside the metering chamber, and to prevent unexpected falling of the powder when the cylindrical member 161 leaves the tank 4. A further function of the compression stage is to reduce the volume of the drawn powder so that it can be used in containers 2 of smaller dimensions.
The goal is to enable the use of

As shown in FIG. 4, the cam 25 is connected to the cylindrical member 1
61 and the rod 134 slide downward at the same speed, and a second stage in which the sliding of the rod 134 is stopped by the cam 337 while the cylindrical member 161 continues to slide downward. In conjunction with the second stage and a third stage in which the rod 134 slides downwardly at the same speed as the cylindrical member 161 by means of the cam 355, a first downward slope 385 is provided. The cam 25 also
Continuing from the above, the gear 213 slides the rod 134 downwards to compress the powder in the metering chamber while the axial sliding of the cylindrical member 161 is stopped. A second flat portion 386 is provided. The cam 25 also connects the cylindrical member 161 from the tank 4.
In connection with the fifth stage in which the powder leaves the metering chamber, a third upwardly inclined part 387 is provided, and further in the sixth stage in which the cylindrical member 161 slides downward after leaving the tank 4 to discharge the powder from the metering chamber. Relatedly, the fourth downwardly sloped portion 3
It is equipped with 88. Following this slope 388,
The cam 25 is associated with the seventh stage in which the gear 275 slides the rod 134 downward to discharge the powder from the metering chamber into the container 2 while the axial sliding of the cylindrical member 161 is blocked. A fifth flat portion 391 is provided. Finally, the cam 25 is moved to the eighth position where the entire metering chamber 3 is slid upwards and a new cycle begins.
Associated with the stage is a sixth upwardly inclined portion 392 .

Points to note regarding Figures 1 and 2 are:
The drum member 16 and the tub 4 are each rotating at different speeds about their respective axes, the purpose of which is that, at least throughout the long operating time, the cylindrical member 161 is rotated at the same point in the tub 4 during the drawing phase. The aim is to minimize the possibility of repeated sinking.

What should be noted in FIG. 3 is that the second main body 13
Second, it can be easily removed from the first main body 131. In fact, it is only necessary to slide the peg 141 upwardly and at the same time pull the protrusion 137 out of the hole 136.
Spring 195 is made of wear-resistant plastic ring 1
91 against the upper portion 175 of the rod 134, the rod 134 retains its position within the hole 133 without falling when released from the cam 337. The rod body 134 is made up of two parts 175 and 176 with slack between them, so that the lower part 176 can rotate by a predetermined amount around the lower end of the upper part 175. Such rotation automatically centers the lower portion 176 within the cylindrical member 161 and prevents side wear that would otherwise occur if the rod were of one-piece construction. Needless to say, there is no axial slack between the two parts 175, 176 of the rod 134. Due to the dimensions of the container 2, the same upper part 17
5, a lower portion 176 and a cylindrical member 16 having different dimensions.
1 can be combined. Rotating shaft 41, 111
may be connected to the same output shaft of one electric motor, or may be connected to two different output shafts of the same electric motor.

As already mentioned, the machine 1 supports the chain 66 of the container 2, but it may also support a chain or other means for accommodating the cover of the container 2. For this purpose, the machine 1 may comprise a first device adapted to separate the cover from each container 2 and a second device adapted to return the cover to each container 2.

Many advantages of the invention will be apparent from the above description.

First of all, it is easy to manufacture and assemble the measuring member 3, and the rod 134 can be adjusted according to the size of the container 2.
The lower portion 176 of the can be easily changed.
Second, the two parts 175, 176 of the rod 134
There is no axial slack between the upper portion 175
Since a predetermined slack is provided in the direction of rotation of the lower part 176 about the lower end of the cylindrical member 161, the lower part 176 can be automatically perfectly centered within the cylindrical member 161. , cylindrical member 1
Wear that occurs on the lower portion 176 as a result of contact with the inner surface of 61 can be prevented. For machine 1, the bar 13 is placed so that its axis is parallel to the axis of each pin 18.
4 above the pin 18, the looseness between the pin 18 and the measuring member 3, which causes a difference in volume in the measuring space of each measuring member 3, is reduced. This arrangement of the measuring member 3 prevents lubricating oil from dripping into the tank 4. As mentioned above, external interference with the head 177 of the rod 134 is caused by contact between the head 177 and the gears 213, 275 and cams 337, 355. The manufacture of these elements is of course simpler than the manufacture of single-piece cams, in which the adjustment of the height of the metering chamber and of the powder compaction pressure in the metering chamber is obviously more difficult. Finally, machine 1 is clearly more efficient and reliable than machines currently on the market, has interchangeable components, and is well maintained.

It will be clear to those skilled in the art that modifications can be made to the machine 1 described herein without departing from the scope of the invention. First of all, from the outside, the rod 13
It is possible to use other means of interfering with 4 to form a metering chamber and compressing and discharging the powder in the metering chamber. For example, gears 213, 275 and cam 33
Instead of 7,355, an adjustable multi-section cam may be used. The containers 2 may differ in shape, size, and material. chain 66
Alternatively, the machine 1 may be equipped with another system for supporting the container 2. For example, a conveyor belt or other members may support the containers and covers, and the machine 1 may further include a device for creating a vacuum in the channels, one for each container 2. Good too. Such a device allows the container 2 to be held over the mouth of each channel until the powder is discharged into the container 2 and the container 2 is sucked into the second machine. An intermediate stage between the third and fourth stages described above can be implemented by providing an extra bevel gear or cam. The shape of the head 177 of the rod 134 may also vary. For example, head 1
The bottom of 77 may be semicircular or tapered.
Needless to say, the upper part of the cam 337 is connected to the rod 13.
The shape must match that of the head 177 of No. 4. Finally, the drum member 16 may be arranged in the upper part of the machine 1, in which case the pin 18 also supports a metering member 3 with a rod 134 whose axis is parallel to the axis of the pin 18. are doing.
It goes without saying that the number of metering elements 3 may vary.

Effects of the Invention According to the present invention, as described above, it is possible to accurately match the amount of powder drawn out for all the measuring members. Furthermore, since there is no risk of lubricating oil entering the rotary tank containing the powder, the powder will not be contaminated by the lubricating oil. Additionally, the machine is easy to manufacture and costs are low.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a side view of the machine, FIG. 2 is an enlarged cross-sectional view of the main part of FIG. 1, and FIG. 3 is an enlarged view of the measuring member in FIG. 1. The partially cutaway side view and FIG. 4 are developed views showing the position of the metering member and the cam at each stage of operation. DESCRIPTION OF SYMBOLS 1... Machine, 2... Container, 3... Measuring member, 4... Rotating tank, 5... Bottom plate, 8... Fixed annular member, 16... Drum member, 17... First hole, 18... First pin, 22... First peg , 24...first bearing, 25...first cam, 41
...first rotating shaft, 66...chain, 67...ring,
77... Head, 84... Annular wall, 85... Second fixed column, 86... First fixed column, 111... Second rotating shaft,
121...first gear, 124...gear, 131...first
Main body, 132... Second main body, 133... Hole (recess),
134...rod body, 136...second hole, 137...protrusion,
141...Second peg, 143...Recess, 151...First
Spring, 155...Prismatic portion, 158...Upper end portion, 1
61... Hollow cylindrical member, 166... Recess, 168... Upper part, 171... Center part, 172... Lower part,
173... middle part, 175... upper part, 176...
Lower part, 177...Head, 178...Second groove,
181...Plate-shaped part, 182...Third groove, 183...Protrusion, 184...Cylindrical part, 191...Ring, 193
...Third through screw hole, 195...Second spring, 196...
Pin, 201...Top plate, 208...Second pin, 213
...Second rotating gear, 272...Third fixed pin, 275
...Third rotating gear, 337...Second cam, 355...Third cam.

Claims (1)

[Claims] 1. A plurality of first holes 17 are provided in an annular portion around the rotating drum member 16 whose axis is perpendicular to the support surface,
A plurality of first pins 18 are accommodated in each of these holes 17 so as to be slidable in the axial direction, and the first pins 18 are inserted into the drum member 16 .
and rotates around the axis of the drum member 16, and each of these pins 18 is connected to the metering member 3.
A hollow cylindrical member 161 is supported by each measuring member 3, and each of these hollow cylindrical members 161 rotates around the axis of the drum member 16. and each first
One rod 134 is configured to slide in the axial direction together with the pin 18 and has an axis parallel to the axis of the corresponding first pin 18 in the recess 133, 166 in each metering member 3. The lower portion 176 of each rod 134 is housed within the hollow cylindrical member 161 such that each rod 134 rotates about the axis of the drum member 16 and axially rotates with the corresponding first pin 18. A rotating tank 4 containing a powder layer is provided, and by forming a measuring chamber at the lower end of the hollow cylindrical member 161, a predetermined amount of powder is removed from the powder layer. During operation, the rod body 134 is moved to a position different from the axial position when it is sliding in the axial direction together with the first pin 18, and the rod body 134 is moved into the hollow cylindrical member 161. In order to carry out the steps of forming the metering chamber, compressing the powder in the metering chamber and discharging this powder into the container 2, a corresponding first A machine for weighing powder and supplying it to a container, characterized in that it is provided with a control means for changing the axial sliding speed of the rod 134, which is equal to the axial sliding speed of the pin 18, by a predetermined number of times. 2. The rotating tank 4 has an annular shape and is located at the upper end of the drum member 16 located in the space formed by the meat-side annular wall 84 of this tank 4, and the measuring member 3 is arranged upwardly from the drum member 16. 2. Machine according to claim 1, characterized in that they are each supported on the upper ends of projecting first pins (18). 3. The hollow cylindrical member 161 and the lower portion 176 of the rod 134 accommodated therein are connected to each metering member 3.
3. The machine according to claim 2, wherein the rotary tub extends downward parallel to the axis of each first pin, and the rotating tub is eccentric with respect to the drum member. 4 The control means controls the top plate 2 parallel to the support surface.
The part of the rod 134 that is supported by the rod 134 and is located above the rotating tank 4 and that operates in conjunction with this control means is connected to the head 177 provided at the upper end of the rod 134.
4. Machine according to claim 3, characterized in that it projects above the recesses (133, 166). 5 A fixed annular member 8 that accommodates the lower portion of the drum member 16 is supported by the bottom plate 5 parallel to the support surface, and a first cam 25 having a sinusoidal curve shape is provided on the inner surface of the fixed annular member 8. and each first pin 18
The end of the first peg 22 extending radially from the bearing 2
The rotation of the first pin 18 about the axis of the drum member 16 and the engagement of the first peg 22 and the first cam 25 cause the first pin 18 to rotate around the axis of the drum member 16 . 5. A machine according to any one of claims 1 to 4, characterized in that it is adapted to slide in a direction. 6. It has a first rotation shaft 41 whose lower part is connected to the output shaft of the first electric motor and whose upper part is fixed to the drum member 16, and this shaft 41 is arranged coaxially with the drum member 16. A machine according to claim 5, characterized in that: 7 First fixed column body 8 housing second rotating shaft 111
6 is supported on the bottom plate 5, the lower part of this shaft 111 is connected to the output shaft of the second electric motor, and this shaft 1
A first gear 121 that meshes with the teeth 124 of the outer annular wall 84 of the rotary tank 4 is fixed to the upper end of the rotating tank 11, and a second fixed column 85 that supports the rotary tank 4 together with the first fixed column 86 is attached to the bottom plate. 7. Machine according to claim 6, characterized in that it is supported on 5. 8. The drum member 16 supports a chain 66 consisting of a plurality of interconnected rings 67, each ring 67 housing a container 2. A machine described in any of paragraph 7. 9 Each measuring member 3 consists of a first main body 131 fixed to the upper end of the first pin 18 and a second main body 132 detachably supported by the first main body 131, which accommodates a rod 134 and is hollow. Cylindrical member 161
The recesses 133 and 166 supporting the second body 132
A machine according to any one of claims 4 to 8, characterized in that it is provided in a machine. 10 The first body 131 is prismatic with a prismatic portion 155 extending downwardly from its bottom wall; 10. Machine according to claim 9, characterized in that it fits into the groove 73 so that the bottom wall of the first body 131 lies on the upper end surface of the drum member 16. 11 A second hole 136 in the first body 131 that accommodates a protrusion 137 protruding from the second body 132
is provided, and the protrusion 137 is connected to the first spring 15
1 to slide axially into the recess 143 on the protrusion 137.
11. Machine according to claim 9 or 10, characterized in that it is fixed in the second hole 136 by a second peg 141 adapted to fit into the second hole 136. 12 A ring 191 made of wear-resistant plastic that fits with the upper portion 175 of the rod 134 is inserted into the recess 13.
3,166, and the third along the protrusion 137.
A through screw hole 193 is provided, and a third hole 19
3 accommodates a second spring 195 which is pushed towards the ring 191 by a pin 196 screwed into it, the part of the second spring 195 facing the ring 191 being free of interference while not being interfered with by the control means. Claim 11, characterized in that the rod 134 is fixed to the measuring member 3.
Machines mentioned in Section. 13 The hollow cylindrical member 161 is inserted into the lower recess 166
Inner parts 158, 168, 173 and recess 1
Portion 171,1 protruding downward from 33,166
72, the rod 134 has an upper portion 175 having a head 177 received in the upper recess 133 and projecting upwardly therefrom, and a lower portion 176 contained in the hollow cylindrical member 161. Claim 12, characterized in that
Machines mentioned in Section. 14 A semi-cylindrical portion is removed from the lower end of the upper portion 175 of the rod 134 to form a second diametrical groove 1
78 is formed, and a third groove 182 is provided in the radial direction of the semi-cylindrical plate portion 181 formed thereby, and the upper end of the lower portion 176 of the rod body 134 is inserted into the third groove 182. a short cylindrical portion 184 accommodated in
3, and there is no axial slack between the upper part 175 and the lower part 176 of the rod 134, but the lower part 176 is centered around the lower end of the upper part 175.
A predetermined slack is provided in the direction of rotation of the hollow cylindrical member 161 so that the lower part 176 can be automatically centered within the hollow cylindrical member 161 during operation. The machine described in. 15. Machine according to claim 13 or 14, characterized in that the head 177 of the rod 134 has a flat bottom wall and an upwardly convex semicircular top wall. 16 The second column 85 extends upward from the rotating tank 4 and supports the top plate 201, and the control means extends downward from the top plate 201, and the control means extends downward from the top plate 201, and a cylindrical member supporting at its lower end a second rotary gear 213 adapted to engage with the head 177 of the rod 134 during the stage in which the powder is compressed in a metering chamber formed within the hollow cylindrical member 161; 208, supported under the top plate 201 and containing the powder in the container 2;
During the stage of ejection into the head 17 of the rod 134
A third rotary gear 275 adapted to engage with 7.
The cylindrical member 272 supporting the lower end of the rod 134 engages with the bottom wall of the head 177 of the rod 134,
The hollow cylindrical member 16 is used to hold the rod 134 in a predetermined axial position for a predetermined time and to slide the hollow cylindrical member 161 downward into the powder bed of the container 2.
1 and a semicircular top wall of the head 177 of the rod 134 to move the rod 134 into the corresponding first pin 1
8, preventing the formation of the metering chamber and moving the rod 134 next to the third gear 275.