JPH0729466Y2 - Capsule filling weight control device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device for automatically controlling the weight of a filling material in a capsule filling device for filling a capsule with a filling material for powder or granules.

[0002]

2. Description of the Related Art Generally, the weight of a filling material filled in the capsule filling device is controlled by taking an appropriate number of capsules fed from the filling device as a sample, measuring the sample, and manually adjusting the filling amount. Has been taken.

[0003]

However, the manufacturing capacity of the filling device is extremely high, and therefore a large amount of defective products may be generated even with a slight control time delay. Moreover, in order to improve the efficiency, the filling device is provided with a large number of filling material supplying members for the capsules, and it is inevitable that the filling accuracy of each filling material supplying member is uneven, and each filling accuracy is measured. It is preferable.

In view of the above points, the present invention incorporates a sample take-out means in a capsule filling device which is a rotary type and has a large number of filler supply members, and measures the filling accuracy of each of the above-mentioned filler supply members. The purpose is to automatically control when the numerical value exceeds the specified value.

[0005]

The present invention has been made in order to achieve the above-mentioned object, and has a filling mechanism in which a large number of filler supply members are arranged on a rotating disk, and the same number of the above-mentioned supply members.
And a capsule holding mechanism in which a holding plate is provided with a capsule supporting member arranged so as to face the filling material supplying member, respectively, and the rotating plate and the holding plate are rotated at the same speed to supply the capsule and remove the cap. In a capsule filling device that performs a series of operations of supplying a filling material by a filling material supplying member, attaching a cap, and discharging a capsule in one rotation, a filling device supported by the holding plate at a proper position in the filling device. Arrangement of a sample take-out means for taking out the capsules filled with the material, a timing device for giving a command of take-out timing to the sample take-out means, a weighing device for measuring the weight of the taken-out capsules, and a calculation for judging the quality of the weighing result Means and a filling amount adjusting mechanism for the filling mechanism of the filling device, and samples at predetermined intervals from a rotating holding plate. Taking out and measuring this, it is determined whether the amount of the filler supplied by the filler supply member to the sample is excessive or insufficient, and when the amount of the supply by the filling mechanism is excessive or insufficient, the filling amount adjusting mechanism is operated to The gist is to correct the filling amount of the supply member.

[0006]

[Operation] The predetermined capsule is taken out by the sample taking-out means and weighed to judge the quality. At this time, since the sample take-out means is provided in the capsule filling device, the filler supply member for the taken-out sample is known. Therefore, when any of the samples is out of the allowable range with respect to the other samples, the filler supply member is proved to be defective. Further, even when the distance between the samples is within the allowable range, when the filling amount needs to be adjusted, the filling amount is adjusted by operating the filling mechanism by the filling amount adjusting mechanism.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a schematic explanatory view of a capsule filling weight control device according to the present invention, and FIG. 2 and subsequent figures show an example of a capsule filling device to which the present invention is applied. This filling device 1
A filling mechanism 3 for holding a predetermined amount of the filler of the granular material and supplying it to the capsule 2 (FIG. 5) and a holding mechanism 4 for sequentially holding the supplied capsules 2 are provided. 4 are arranged vertically. The filling mechanism 3 includes a large number of supply members 5, a cam mechanism 6 for moving the supply members 5 up and down, and a rotating plate 7 for rotating the supply members 5.
As the supply member 5, in this example, a cylinder 8 and a piston 10 are used.
An example configured by and is shown.

The cam mechanism 6 is composed of a cylinder cam member 12 and a piston cam member 13. The cam members 12 and 13 are discs having the same outer diameter, and the cylinder cam member 12 is mounted on a mounting column 17. The piston cam member 13 is fixed and attached so as to be able to move up and down along a guide bar 18 implanted in the cylinder cam member 12. The cylinder 8 and the piston 10 respectively include mounting levers 9 and 11, and the mounting levers 9 and 11 are engaged with the cam grooves 12a and 13a of the cam members 12 and 13, respectively. The cam grooves 12a and 13a are respectively formed by the cam members 12 and 13a.
It is engraved on the outer periphery of and is curved and formed in the vertical direction so that the cylinder 8 and the piston 10 can be moved up and down in synchronization.

The rotary plate 7 is rotatably mounted on a mounting column 17 and is connected to a drive gear 15 which is rotated by an appropriate drive means (not shown), and the cylinder 8 is fitted in a vertically slidable manner. A rotary cylinder (16) is inserted and extends upward. The rotary cylinder 16 holds the mounting levers 9 and 11 so as to be vertically slidable. Therefore, by rotating the rotary plate 7, the cylinder 8 and the piston 10 move concentrically with the cam mechanism 6, and when the filling material is received in the cylinder 8 by the cam grooves 12a and 13a, respectively, as will be described later. When feeding to 2, it is shifted downwards.

The capsule holding mechanism 4 comprises a holding plate 20, which is connected to a drive gear 24 which is rotated by an appropriate drive means (not shown). The holding plate 20 includes a boss portion 21 rotatably supported by a mounting column 17 and an arm 22.
It is composed of a ring-shaped rim portion 23 which is connected via. The rim portion 23 has a diameter larger than that of the filling mechanism 3, and holding holes 25 for holding the same number of caps 2a of the capsules 2 as the supply members 5 are formed at equal pitches. A body receiver 26 for inserting and supporting the body 2b of the capsule 2 is provided opposite to each of the holding holes 25, and a capsule supporting member 27 is formed by the holding hole 25 and the body receiver 26. . The body receiver 26 is attached to the tip of an arm 28, and the arm 28 is fitted in the boss portion 21 so as to be able to move in and out in the radial direction. A fixed cam plate 30 is provided below the holding plate 20, and the arm 28 is provided with a protrusion 31 that fits into a cam groove 30a formed on the upper surface of the cam plate 30.

Therefore, when the holding plate 20 is rotated, the body receiver 26 is rotated together with the body receiver 26, and the body receiver 26 is moved in and out along the cam groove 30a. When it is retracted, it is moved to a position corresponding to the supply member 5. FIG. 6 shows a plan view of the transition loci of the supply member 5, the holding hole 25, and the body receiver 26. However, 5
Reference characters a, 25a, and 26a are transfer loci of the supply member 5, the holding hole 25, and the body receiver 26, respectively. The supply member transition locus 5a and the holding hole transition locus 25a are formed concentrically or slightly decentered. About half of the body receiving transition locus 26a overlaps with the holding hole transition locus 25a, and the rest delineates the ellipse, and partly coincides with the supply member transition locus 5a.

The supply members 5, the holding holes 25, and the body receivers 26 are provided in the same number as described above, are provided on the same radius, and are rotated at the same angular velocity. In the figure, reference numeral 32 denotes a filling material storage box, which is arranged below the supply member 5, and when the supply member 5 reaches the storage box 32, the cylinder 8 and the piston 10 descend while maintaining a constant relative relationship. Then, the filler A is thrust into the filler A to store the filler A in the cylinder 8.

The operation of the capsule filling device 1 will be described with reference to FIGS. 2, 3 and 7. Capsule 2 is holding mechanism 4
It is supplied to the holding hole 25 by a capsule supply mechanism 40 having a proper structure provided so as to face the. At this position, the body receiver 26 is pushed outward by the cam plate 30, is positioned below the holding hole 25, and the supply member 5 is pulled upward by the cam mechanism 6. A predetermined amount of filler A is stored in the cylinder 8 as described later [FIG. 7 (a)].

Next, the holding hole 25 reaches the position of the separating mechanism 41 with the capsule 2 accommodated therein. The separating mechanism 41 includes an intake pipe 41a located below the body receiver 26. Due to the intake action of the intake pipe 41a, the body 2b is capped by the cap 2
It is removed from a and stored in the body receiver 26. Cap 2
a is still held in the holding hole 25. [Fig. (B)].

Then, with the rotation of the holding mechanism 4, the body receiver 26 moves inward along the elliptical actuation and reaches below the supply member 5. At the same time, the supply member 5 is moved downward by the cam members 12 and 13, and when the supply member 5 and the body receiver 26 are aligned with each other, the piston 10 is further moved by the cam member 13 to store the filler A in the body 2b. Supply in. (The same figure
(c)].

After that, the supply member 5 is pulled upward by the subsequent rotation, and the body receiver 26 is pushed outward by the cam plate 30 and moved below the holding hole 25 [FIG.
(d)], the position of the coupling mechanism 42 is reached. The coupling mechanism 42 is provided with a push-up rod 43, and the push-up rod 43 pushes up the body 2b so that the body 2b is coupled to the cap 2a [(e) in the figure]. Four
Reference numeral 4 is a receiving plate disposed above the cap 2a. By further rotating, the supply member 5 reaches above the filling material storage box 32, the cylinder 8 and the piston 10 descend while maintaining a constant relative relationship, and are thrust into the filling material A, and the cylinder 8
The filler A is pushed into the inside [(f) of the same figure]. in this case,
The amount of filler contained in the cylinder 8 is determined by the position of the piston 10. However, in this state, when the cylinder 8 is pulled up, the stored filler drops, so when the tip of the cylinder 8 approaches the bottom of the storage box 32, the piston
10 is slightly lowered to compress the filler A. As a result, even if the cylinder 8 is pulled up, the contained filler A does not drop.

Next, the capsule supporting member 27 reaches the position of the capsule ejecting means 45. This take-out means 45 is equipped with an extruding rod 46 for pushing the capsule 2 out of the support member 27 and a pressure air blowing nozzle 47, and pushes out the capsule 2 from the support member 27 and blows it off onto a chute or the like provided in place. (Fig. (G)).

It is necessary to extract a required number of samples from the capsule group which has undergone the series of filling operations described above, and inspect and adjust the amount of the filler. According to the present invention, a sample is extracted from the capsule after the filling operation at predetermined intervals, the weight of the filling material is inspected, and a capacity change command is issued to the supply member 5.

As shown in FIG. 1, the filling weight control device 50 includes a sample take-out means 51, a weighing device 54 for measuring the weight of the taken-out capsule 2, and an electric signal from the weighing device 54 to calculate the filling weight. Computation means 55 for determining excess or deficiency of
A filling amount adjusting mechanism 56 for the supply member 5 is mainly used. The sample take-out means 51 is arranged between the coupling mechanism 42 and the capsule take-out means 45 as shown in FIGS. This sample take-out means 51, like the capsule take-out means 45, has an extrusion rod 52 and a pressure air blowing nozzle.
53 and. As the weighing device, a device that can convert the measured weight into an electric signal, for example, an electronic scale using a load cell is used. In this case, the digital output is more suitable for the arithmetic processing. In this example, the filling amount adjusting mechanism 56 is configured to move the piston 10 up and down to change the volume of the cylinder 8. The drive motor 57 is a pulse motor, for example.

In the figure, reference numeral 60 denotes a duct for guiding the capsule sent out from the sample take-out means 51 to the measuring device 54, which is transferred by an ejector. Reference numeral 61 is a pressure air blowing pipe. Reference numeral 62 is a pressurized air jet pipe for transferring the capsule 2 on the weighing device 54, and 63 is a sample storage box. Further, reference numeral 65 is a timing device provided in parallel with the computing means 55, and it is the timing of taking out the sample and the capsule 2 taken out.
Is to determine the transfer time.

Next, the procedure for controlling the supply of the filling material A to the capsule 2 by the filling weight control device 50 will be described. First, the timing device 65 determines the interval between capsules taken out as samples. For example, a serial number is given to the capsule support member 27 of the holding mechanism 4 so that the capsule having a predetermined number can be taken out. Alternatively, the timing device 65 may randomly pick up.

When the capsule 2 as the sample to be taken out reaches the sample taking-out means 51, the capsule 2 is pushed out by the pushing rod 52 according to the instruction from the timing device 65, and the pressure air is blown from the pressure air blowing nozzle 53 to blow the duct 60. Move to.

Next, the capsule 2 is moved through 60 by an ejector and is supplied to the weighing device 54. The weight of the capsule 2 itself is constant, so the weight of the filling material is easily detected. The weight is calculated by the calculation means 55, and it is determined whether the weight is excessive or insufficient. If the excess or deficiency exceeds the specified range,
The filling amount adjusting mechanism 56 is operated, and the piston 10 is moved up and down together with the cam member 13 to increase or decrease the volume of the cylinder 8.
As a result, the amount of collected filler when the cylinder 8 is pushed into the filler storage box 32 can be adjusted.

At this time, the sampled capsules are
The number of the capsule supporting member 27 is determined, and the filling material supplying member 5 corresponding thereto is also determined.
Therefore, if the filler supply member 5 is out of the allowable range,
The machine base is stopped and the supply amount by the supply member is adjusted.

[0025]

As described above, according to the present invention, the sample take-out means for taking out the capsule filled with the filling material, which is supported by the holding plate, is arranged at a proper position in the filling device, and is supported by the holding plate.
Moreover, since the capsule filled with the filler is sampled and measured, the filler supply member for the capsule can be specified to determine the excess or deficiency of the filling amount by the supply member. By sequentially performing the sampling method, it is possible to determine the quality of the supply amount of the filler of each supply member. Therefore, when there is a capsule with an abnormal supply amount, the filler supply member for the capsule can be specified, and the supply amount of the filler supply member is adjusted based on this. In addition, when the capsules are within the allowable range and the supply amount of all the supply members is insufficient or excessive, it is immediately fed back and corrected by the filling amount adjustment mechanism, so that the number of defective products is reduced. Can be measured. Further, since the adjustment is performed electrically, unlike the conventional manual operation, fine adjustment is possible, the deviation value of the weight is reduced, and the capsule filled with the filler of substantially uniform weight can be manufactured.

[Brief description of drawings]

FIG. 1 is a schematic explanatory view of a capsule filling weight control device according to the present invention.

FIG. 2 is a vertical sectional view of a capsule filling device.

FIG. 3 is a plan view of the same.

FIG. 4 is an arrow view taken along line XX in FIG.

FIG. 5 is a front view of a capsule.

FIG. 6 is a plan view of a transition locus between the supply member and the capsule support member.

FIG. 7 is an operation explanatory diagram.

[Explanation of symbols]

 1 Capsule Filling Device 2 Capsule 3 Filling Mechanism 50 Filling Weight Control Device 51 Sample Extracting Means 54 Weighing Device 55 Computing Means 56 Filling Volume Adjustment Mechanism 65 Timing Device A Filling Material

Claims (1)

[Scope of utility model registration request] 1. A holding plate is provided with a filling mechanism in which a large number of filler supply members are arranged on a rotary disk, and a capsule support member of the same number as the supply members and arranged to face the filler supply members, respectively. Equipped with a capsule holding mechanism, the rotating plate and the holding plate are rotated at the same speed, the capsule is supplied and the cap is removed, the filler is supplied by the filler supplying member, the cap is attached and the capsule is discharged. In a capsule filling apparatus that performs a series of operations during one rotation, a sample taking-out means for taking out the capsule filled with the filling material supported by the holding plate is arranged at an appropriate position of the filling apparatus, and the taking-out timing is taken by the sample taking-out means. , A weighing device for measuring the weight of the capsule taken out, a calculation means for judging the quality of the weighing result, and a filling device And a filling amount adjusting mechanism for the filling mechanism, the sample is taken out from the rotating holding plate at a predetermined interval, and the sample is weighed to determine whether the amount of the filling material supplied by the filling material supplying member is excessive or insufficient. At the same time, when an excess or deficiency of the supply amount by the filling mechanism occurs, the filling amount adjusting mechanism is operated to correct the filling amount of each supply member.