JPS6228319A - Tablet feeder - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a tablet feeding device for appropriately picking out stored tablets and introducing them into a packaging section in a tablet packaging machine.

(b) Conventional technology As a tablet feeding device,
There is a technique shown in the publication. This is a tablet storage device in which a tablet alignment tube is driven by a solenoid, and the tablets are introduced into the tube and extracted.As the stored tablets are agitated by the thrusting, a stable supply of the drug is achieved. The disadvantage is that the operating noise is louder. Also, Jikko Sho 56-44
No. 728 discloses a configuration in which several grooves are formed in an alignment wheel, tablets are introduced into the grooves and aligned while the alignment wheel is rotated, and the tablets are extracted from the groove by gravity. Since this tablet delivery drive system is a rotary type, the operation noise is lower than that of the above-mentioned push-up method.

(c) Problems to be Solved by the Invention However, the above-mentioned conventional technology based on the rotation method has the following problems in terms of supply operation. In other words, tablets generally have an elongated shape (particularly noticeable in capsule-shaped tablets), and when they fall naturally, their longitudinal direction is vertical. They are lined up. However, the stable state of a tablet is when the longitudinal direction is horizontal, and because the tablet is naturally stored in this stable state in the tablet storage device, a situation often occurs where the tablet is not introduced into the groove and the tablet is removed. It may not be done.

Therefore, if grooves are formed so that the tablets are aligned horizontally in the longitudinal direction, this problem can be solved, but since the tablets are stacked in the thickness direction where the dimensions are short, it is necessary to reliably separate and eject the tablets. It is very difficult to do so.

In view of the above points, the present invention provides a rotary tablet feeding device capable of performing a stable tablet extraction operation.

(2) Means for Solving the Problems Explained based on an embodiment, a rotary plate fi+ having a tablet receiving portion (2) on the periphery is provided, and cooperates with this rotary plate (1) to hold the tablet. A tablet storage device (3) that guides the tablets toward the rotary plate (1) has a tablet outlet (4) opposite to one point on the circumference of the rotary plate. Also, rotating plate ('
Reference numeral 11 denotes an extrusion member (5) that advances and retreats in the radial direction, and a spring (6) that biases the extrusion member (5) in the advancing direction.
and the tablet receiving part (2) in cooperation with the extrusion member (5) when retracting.
) is provided with a locking device (7) for locking the tablet received in the tablet. It has a control member that is driven in conjunction with the rotation of the rotary plate (1), and the control member is connected to the extrusion member (5).
When the member (5) is away from the tablet ejection port (4), the member (5) is urged against the spring (6) and moved backward, and the extrusion member (5)
) reaches the tablet outlet (4), the force applied to the spring (6) is released.

(e) When the rotary plate rotates while the action control member is retracting the extrusion member against the spring, the tablet in the tablet receiving portion is locked by the locking tool. When the extrusion member reaches the tablet outlet due to rotation, the extrusion member advances due to the spring force, and the tablet held by the locking device is sent out from the tablet outlet.

(f) Example Figures 1 and 2 show a side sectional view and a plan view of the device according to the book, and the rotary plate (1) arranged at an angle has an inner wall αυ and an outer wall αO on the periphery of the tablet. A recessed portion serving as a receiving portion (2) is formed, and the rotating shaft α2 is connected to a drive shaft of a motor a9 via a gear Q3) (14). The cylindrical tablet storage device (3) is arranged to include the rotary plate (1) and to face the rotary plate +11 at the bottom plate (16). Therefore, the tablets stored in the tablet storage device (3) are stacked from the lower end of the tilted rotating plate (11).In this example, the tablet storage device (3) has a cylindrical shape extending from the rotating plate (1). However, other shapes may be used as long as the tablets are deposited from the lower end of the rotary plate (1) arranged at an inclination.On the other hand, the outer wall QQ- of the rotary plate (1) is Holes C17) that approximately match the dimensions are provided at equal intervals, and the rotary plate (1) can be freely advanced and retracted by a control member toward each hole α force, and is controlled in the advancing direction by a spring (6). A push-out member (5) that is biased is attached.

The control members include a cam (8) formed on the bottom plate and a roller (18) attached to the extrusion member (5) and sliding on the cam surface.
When the roller OQ slides on the cam surface as the rotating plate (1) rotates, the extrusion member (9) advances according to the shape of the cam (8). Or it is configured to move backwards. and tablet receiving part (2
) is provided with a locking tool (7) corresponding to each hole α, and the locking tool (7) is fixed to the rear end side of the hole side with respect to the rotating direction of the rotary plate (1). There is. In addition, the tablet storage device (3
) is provided with a tablet ejection port (4) at a position facing the upper end of the tilted rotary plate (1), which communicates with a hole (17) that reaches the upper end by rotation of the rotary plate (1). It is composed of 5 parts.

To explain the operation of the above configuration, the tablets loaded from the tablet input port a1 roll along the slope of the tablet storage device (3) and are deposited from the lower end of the tilted rotary plate (1), and are deposited in the tablet receiving area. (2) Tablets are introduced. When the motor α9 is driven by a predetermined tablet extraction signal and the rotary plate (1) is rotated, all the tablets in the tablet receiving part (2) are transferred to the upper end of the rotary plate (1) in the longitudinal direction. Tablet receiver (
2) are aligned so that they touch the bottom of

On the other hand, when the rotary plate (1) rotates, the extrusion member (5) that has passed through the tablet ejection port (4) is moved toward the center of the sliding rod (9) by sliding on the cam surface of the roller 08), and is spring-loaded. (6)
, and at the lower end the tablet receptacle (2) is completely
It's more backwards. Therefore, while the tablets aligned in the tablet receiving part (2) are transferred from the lower end to the upper end by the rotation of the rotary plate (1), the pushing member (5) is retracted, so that the tablets are It is locked by the locking tool (7) at a position facing the. Then, when the rotary plate (1) reaches a position where the hole 0η and the tablet outlet (4) communicate with each other, the roller α mallet fits into the notch ■ of the cam (8), so that the sliding rod (9) When the bias is released, the extrusion member (5) advances due to the spring force, and the tablet that is locked in the locking tool (7) is pushed into the chute
is discharged and introduced into a tablet packaging machine. At this time, when the extrusion member (5) advances, the hole C17) is closed by the extrusion member (5), so that the tablet is not extracted continuously.

Furthermore, since the tablet ejection port (4) is provided at the upper end, the stored tablets do not concentrate in the tablet ejection port (4), and therefore, when the extrusion member (5) moves as the tablet is ejected, the member (5) 5) will not pinch or catch other tablets. In this example, the rotary plate (1) is provided with the outer wall a, but it can also be used as the peripheral wall of the tablet storage device (3). Since the bottom plate is formed, if the cam (8) is formed separately, the bottom plate (1
e is also not particularly necessary. The control member is not limited to the cam (8) and the sliding rod (9), but other modifications can be considered, and the key point is the extrusion member (
Any mechanism may be used as long as it allows the tablet to be retracted when the tablet 5) is at the lower end, and advanced when it reaches the tablet outlet (4) at the upper end.

(g) Effects of the Invention According to the present invention, the separated tablets can be reliably separated in order to pick out the accumulated tablets in a stable state and align them in the tablet receiving part. Furthermore, since the tablets are ejected by the action of the extrusion member, the ejection time can be shortened compared to the conventional method of gravity-dropping, and the processing speed of the device can be improved.

[Brief explanation of the drawing]

FIG. 1 shows a side sectional view and FIG. 2 a plan view of the device according to the invention. (1)... Rotating plate, (2)... Tablet receiving part, (
3)...Tablet storage device, (4)...Tablet outlet,
(5)...Extruded member, (6)...Spring, (7)
...locking tool, (8)...cam, (9)...sliding rod.

Claims (1)

[Claims] 1. A rotary plate having a tablet receiving portion on its periphery, a tablet storage device that cooperates with the rotary plate to hold the tablet and guide the tablet toward the rotary plate, and a tablet storage device that faces a point on the circumference of the rotary plate. a tablet ejection port provided in the tablet storage device; a pushing member mounted on the rotary plate so as to be able to move forward or backward in a radial direction with respect to the tablet receiving portion; and a pushing member attached in a direction in which the pushing member is moved forward. a locking device that cooperates with the pushing member to lock the tablet in the tablet receiving portion when the pushing member is retracted; and a locking device that is biased when the pushing member is at the inclined lower end portion; and a control member which releases the force when the extrusion member reaches the tablet ejection port by rotation of the rotary plate, and releases the force from the control member to cause the extrusion member to move backward against the spring. A tablet feeding device characterized in that the member is ejected by the spring force and discharges the locked tablet by the locking tool.