JPS6341281Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a feeding device for powdered medicine such as powder or granules.

[Conventional technology]

As shown in FIGS. 4 and 5, the support member 2
A powder supply body 22 is provided movably in the direction of the arrow along a horizontal guide portion 21 formed at 0, and a plurality of powder supply holes 23 are provided in the powder supply body 22 at equal intervals in the direction of movement of the powder supply body 22. After supplying a predetermined amount of powder into each powder supply hole 23,
The powder supply body 22 is intermittently fed in the horizontal direction using the size corresponding to the formation pitch of the powder supply hole 23 as the feed pitch, and each time the powder supply hole 23 stops on the chute 24 provided in the movement path of the powder medicine supply body 22. JP-A No. 58-99301 discloses a powder dispensing machine in which the opening/closing lid 25 at the bottom of the powder supply hole 23 is opened to allow the powder inside to fall into the chute 24, and the powder is packaged using a packaging sheet. It is stated in the number.

In the above-mentioned powder medicine packaging machine, a powder medicine supply device is provided above the transfer path of the powder medicine supply body 22, and when the powder medicine supply device is operated, a predetermined amount is delivered to the plurality of powder supply holes 23 of the powder medicine supply body 22 that stops below. We try to supply powdered medicine at the same time.

As shown in FIGS. 4 and 5, the conventional powder supply device has a pair of end plates 32 provided at both ends of an inner surface 31 of a support block 30, and is disposed between the end plates 32 so as to be connected to the inner surface 31. An opening/closing plate 34 forming a V-shaped mass 33 approximately equal to the length of the powder supply body 22 at
A projecting piece 35 is provided at the center of both ends, and this projecting piece 35 is rotatably attached to the end plate 32 with a pin 36, and by rotation of the opening/closing plate 34 about the pin 36,
The powder filled in the V-shaped mass 33 and having a uniform upper surface is allowed to fall into the powder supply hole 23 of the powder supply body 22 waiting below.

[The problem that the idea aims to solve]

However, in the conventional powder supply device described above,
The rotation center of the opening/closing plate 34 is located on the outer surface side of the opening/closing plate 34, and the opening/closing plate 34 is in a closed state from the center.
Since the horizontal distance to the vertical line passing through the lower edge of the opening/closing plate 34 is long, when the opening/closing plate 34 is opened, the lower edge of the opening/closing plate 34 moves toward the bottom dead center, and the opening/closing plate 34 in the closed state It is necessary to secure a large distance between the lower edge of the powder supply body 22 and the upper surface of the powder supply body 22 to allow rotation of the opening/closing plate 34. For this reason, V-shaped square 3
3 to the powder supply hole 23 of the powder supply body 22 is long, and when the powder is supplied,
The powder may scatter while falling, or may fly upwards of the powder supply hole 23 due to the impact of colliding with the opening/closing lid 25 at the bottom of the supply hole, resulting in the inconvenience that a predetermined amount of powder cannot be supplied into the powder supply hole 23. be.

Therefore, if the upper surface of the powder medicine supply body 22 is formed in an arc shape centered on the opening/closing center axis of the opening/closing plate 34, the powder medicine supply body 22 can be placed in a position close to the powder medicine supply device. body 22
The shape becomes complicated and manufacturing becomes difficult.

The technical problem of this invention is to provide a powder supply device in which a powder supply body having a flat upper surface and easy to manufacture can be placed in close proximity.

[Means for solving problems]

In order to solve the above problems, this invention has a configuration in which the center of rotation of the opening/closing plate that forms a V-shaped mass with the inner surface of the support block is located above the inner surface of the opening/closing plate in the closed state. was adopted.

[Effect]

With the above configuration, when the opening/closing plate is opened, the lower edge of the opening/closing plate will move upward from approximately the lowest point. It can be arranged close to the lower edge of the opening/closing plate, and the falling distance of the powder can be reduced.

〔Example〕

As shown in FIGS. 1 to 3, a support block 1 is disposed above a powder supply body 22 having a plurality of powder supply holes 23. As shown in FIGS. The inner surface 2 of the support block 1 is a vertical surface, and a pair of substantially triangular end plates 3, 3 are provided at both ends of the inner surface 2.

A support piece 6 is attached to both side ends of the opening/closing plate 5 which is arranged between the end plates 3 and forms a V-shaped mass 4 with the inner surface 2 of the support block 1, and a support bar 7 connected to the support piece 6 Support arms 8 are provided at both ends of the support block 1, and the ends of the support arms 8 are rotatably connected to the outer surface of the end plate 3 of the support block 1 with pins 9. This pin 9 is located above the inner surface of the opening/closing plate 5 and close to the inner surface 2 of the support block 1, that is, close to the vertical line passing through the lower edge of the opening/closing plate 5 in the closed state. It is located in

The lower part and upper part of the support arm 8 are rotatably supported by a pin 10, and the lower part of the swing plate 11 is connected by a link 12, and the end of a spring 13 that biases the opening/closing plate 5 in the closing direction is connected to the link 12. The parts are connected.

The swing plate 11 also includes an output shaft 1 of the motor 14.
A cam follower 17 is attached so as to be able to come into contact with a cam 16 attached to the opening/closing plate 5, and when the motor 14 is driven, the opening/closing plate 5 rotates about the pin 9.

Now, put the weighed powder into the V-shaped mass 4 formed by the inner surface 2 of the support block 1 and the opening/closing plate 5, smooth the surface of the powder evenly with a spatula, etc., and then insert the opening/closing plate 5 into the pin 9. When opened by rotating around the powder medicine supply body 2, the powder medicine inside is waiting below.
It falls into the powder supply hole 23 of No. 2 and enters the powder supply hole 23.
The powder is divided into volumes corresponding to the number of powders, and a predetermined amount of powder can be supplied to each powder supply hole 23.

〔effect〕

As described above, in this invention, the center of rotation of the opening/closing plate that forms a V-shaped mass with the side surface of the support block is placed above the inner surface of the opening/closing plate in the closed state, so that the opening/closing plate can be moved in the opening direction. When the opening/closing plate is rotated, the lower edge of the opening/closing plate is rotated upward from approximately the lowest point. Therefore, the opening/closing plate and the powder supply body disposed below the opening/closing plate can be placed close to the lower edge of the opening/closing plate, and the falling distance of the powder can be reduced. Further, a powder supplying body having a flat upper surface and easily manufactured can be used.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front view showing an embodiment of the powder supply device according to this invention, Fig. 2 is a longitudinal sectional front view of the same, Fig. 3 is a plan view of the same, and Fig. 4 is a conventional powder medicine supply device. FIG. 5 is a longitudinal sectional front view showing the supply device, and FIG. 5 is a longitudinal sectional side view of the same. 1...Support block, 2...Side surface, 3...End plate, 4...V-shaped mass, 5...Opening/closing plate, 6...Support arm.

Claims (1)

[Scope of utility model registration request] A plurality of powder supply holes are provided in a powder supply body supported so as to be reciprocally movable in the horizontal direction at equal intervals and close to each other in the moving direction of the powder medicine supply body, and a support block is disposed above the transfer path of the powder medicine supply body, An opening/closing plate that is arranged between a pair of end plates provided at both ends of the inner surface of this support block and forms a V-shaped mass with the inner surface of the support block is rotatably supported, and the V-shaped mass is filled with the opening and closing plate. In the powder medicine supply device, the powder medicine is dropped into the powder supply hole by opening the opening/closing plate, and the center of rotation of the opening/closing plate is provided at a position above the inner surface of the opening/closing plate in the closed state. A powder medicine supply device featuring: