JPS6032516B2 - Defective capsule sorting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for separating defective capsules such as capsule hangnails, dents, deformed body caps, double caps, etc., and which automatically selects defective capsules from good ones. The purpose is to prevent the contamination of defective products by continuously sorting and eliminating them.

That is, a rotary drum provided with a receiving hole around the circumference, which has an inner diameter that is approximately the same diameter or slightly larger than the cap portion of a good capsule, and smaller than the outer diameter of a capsule that is defective due to deformation, etc.;
It consists of a push-out pin that is movably housed in the receiving hole and slides a fixed cam, and a pushing disk that pushes the capsule into the receiving hole, and a defective product that is pushed into the receiving hole by the pushing disk. The capsules are ejected by the push-out pin, and due to the difference in diameter of the capsules placed in the receiving hole provided in the rotating drum, good products naturally fall from the receiving hole of the rotating drum, and defective products are produced. Good products are pushed into the receiving hole with a disk, and defective products that are pushed in are forcibly pushed out of the receiving hole with an ejector pin to be sorted out.The feature is that defective products can be automatically and continuously separated from non-defective products. There is.

However, by providing a screw-type rough sorting device upstream of the sorting device, the sorting ability and accuracy can be improved. The embodiments shown in the drawings will be described below.

First, the embodiment shown in FIG. 1 will be explained. Capsules sent from a hopper 1 are transferred onto a rotating screw 2 and a fixed shaft 3 provided oppositely thereto.

Since the gap between the rotating screw 2 and the fixed shaft 3 is smaller than the outer diameter of the capsule, the capsule is transferred to the chute section 5, and falls into the chute 5 from a portion formed larger than the outer diameter of the capsule.

The rotating screw 2 is driven by a motor 6 on the frame 4.

In the chute section 5, a shutter 9 provided on the rotating shaft 8 of a lever 7 which is swung by a cam, which will be described later, faces the number takeout window 10 of the chute 5, thereby temporarily stopping the capsules that have fallen into the chute section 5. let

The opening of the chute section 5 faces the rotating drum 11,
By moving the roller 7a of the lever 7 on the toothed cam 19 that rotates in synchronization with the rotating drum 11, the shutter 9 opens and closes the chute section 5, and one capsule at a time is transferred to the rotating drum 1.
1 into a receiving hole 12 provided on the circumference.

The receiving hole 12 has a ring groove 1 into which a pushing disk 13 is inserted.
4 is cut, and the push-out pin 15 is inserted into the receiving hole 12 as shown in FIGS. is in constant contact with.

Therefore, as the rotating drum 11 rotates, the push-out pin 15 slides within the receiving hole 12 according to the shape of the fixed cam 18.

The receiving hole 12 has a diameter that is approximately the same as or slightly larger than the outer diameter of the cap portion of the capsule that is considered to be a good product, and an inner diameter that is smaller than the outer diameter of the cap portion of the capsule that is considered to be a defective product. A good capsule enters the receiving hole 12 without applying more force than the other capsules, and a defective capsule fits into the receiving hole 12 by the pressure of the pushing disk 13 because the outer diameter of the capsule body is large.

The tapered hole 12a of the receiving hole 12 described above has the function of preventing the capsule from falling out of the receiving hole 12,
The depth is preferably 1/2 or more of the total length of the capsule.

It is preferable that the depth of the receiving hole 12 is equal to or greater than the entire length of the capsule, but the tapered portion can be made shorter if the capsule is directionally restricted.

The push-in disk 13 engages with the ring groove 14 of the rotating drum 11 and rotates, but the fixed cam 18 engages the push-out pin 15 at the point where the receiving hole 12 passes directly below and rises upward as the rotating drum 11 rotates. is a deformed cam that protrudes into the receiving hole 12.

In this way, the capsules introduced into the receiving hole 12 from the chute section 5 are pushed into the disk 13 as the rotating drum 11 rotates.
When the good capsule is pushed into the receiving hole 12 and comes directly below, it naturally falls toward the good capsule side of the holder 20 installed directly below the rotating drum 11 because it is smaller than the receiving hole 12.

Since the defective capsule is pushed in, after passing directly below, it is pushed out by the push-out pin 15 and discharged to the defective product side of the holder 20.

Note that if the direction of the capsule is regulated, the tapered part of the receiving hole and the ring groove are unnecessary.

That is, if the cap is located in front of the capsule in the direction of travel, the shape of the cap is unstable, making it difficult for the capsule to easily enter the receiving hole. However, if the body is oriented in the forward direction of the capsule, it is stable due to the shape of the body, so it can easily enter the receiving hole even if there is no taper part (tapered part and ring groove). becomes unnecessary. Next, the embodiment shown in FIGS. 4, 5, and 6 will be described. In this embodiment, a rotary drum 21 is used instead of the shutter 9 shown in FIG. 1, and the rotary drum 21 has a receptacle hole 22 for receiving ampoules, both good and defective. The same number of holes as the receiving holes 12 of the rotating drum 11 are provided. Therefore, as the rotary drums 21, 11 rotate, the capsules first enter the receiving hole 22 from the chute portion 5, and are then thrown into the receiving hole 12 of the rotating drum 11 one by one.

Therefore, the rotary screw 2 is arranged double with respect to the fixed shaft 3, and the chute part 5 has a vertical vibration device to prevent the bridging phenomenon of the capsule in the hopper 1 and to smoothly discharge the capsule. It is supposed to be done.

That is, as shown in FIGS. 5 and 6, a bearing body 24 is vertically movably mounted on a guide bar 23 of a support frame 22 having a U-shaped cross section attached to the frame 4, and this is attached to the chute portion 5.
It is connected to a vibrating cylinder 5b which is iron-mounted to a fixed pipe 5a.

The inlet of the vibrating cylinder 5b forms a tapered hole, and the hopper 1
The capsule is formed so that it can be easily dropped toward the fixed pipe 53. The bearing body 21 is the motor 25
It is pivotally supported eccentrically by a cam 26 and vibrates up and down by a link 27.

In the embodiment shown in FIG. 7, defective capsules can be removed by changing the thickness of the fixed shaft 3 corresponding to the rotating screw 2.
That is, capsules that are thinner than the standard due to crushed or dented bodies, or capsules that are extremely deformed and have large diameter bodies are roughly sorted out.

The width of the gap between the part 3a of the fixed shaft 3 and the screw 2 is smaller than the outer diameter of the cap part of a non-defective capsule, and the gap width is larger than the outer diameter of the body part. Remove to box 28.

The width of the gap between the portion 3b of the fixed shaft 3 and the screw 2 is slightly larger than the outer diameter of the cap part of the standard capsule, so that good and defective capsules other than extremely deformed and thick capsules fall into the chute part 5. The width of the gap between the 3c portion of the fixed shaft 3 and the screw is set to a wide width that allows the remaining extremely thick capsule to fall and be removed.
A receiving box 29 is provided directly below it.

The above-mentioned device forms a screw-type rough sorting device, and its use will further improve the sorting of defective capsules.

In any case, the device of the present invention has a rotary ring with a receiving hole around the circumference having an inner ridge smaller than the outer diameter of the capsule, which is approximately the same diameter or slightly larger than the cap portion of a non-defective capsule, and which is considered defective due to deformation. It consists of a drum, a push-out pin that slides on a fixed cam that is slidably housed in the receiving hole, and a pushing disk that pushes the capsule into the receiving hole. A first invention provides a defective capsule sorting device characterized in that the pushed-in defective capsules are ejected by the push-out pin, and a gap between a fixed shaft and a rotating screw is provided separately from the sorting device according to the first invention. A defective capsule sorting device comprising: a screw-type rough sorting device for sorting capsules according to their width; and a chute portion for connecting capsules large enough to sort capsules from the gap to the receiving hole. This is the second invention, and has the following features.

There was nothing that could detect minute changes in the size of the mugwort, such as hangnails. There are methods to sort out defective products with different sizes, break-offs (separation of the body and cap), double caps (two caps attached to one body), and large dents, but hangnails are The amount of increase in the diameter of the cap part is subtle and varies depending on the contents and the degree of hangnails, so it could not be sorted using conventional rough sorting methods and was detected by visual inspection. The device of the present invention is characterized in that it can detect even small abnormalities in size, such as hangnails.

In addition, good products and defective products are sorted out based on the difference in diameter of the capsules inserted into the holes provided in the rotating drum.
It can be sorted with or without direction regulation, efficiency can be increased by having multiple rows of receiving holes on the rotating drum, or by providing rows of holes on the rotating drum, and the entire device can be made compact. .

However, by providing a screw-type rough sorting device upstream of the sorting device, the sorting ability and accuracy can be improved.

[Brief explanation of the drawing]

FIG. 1 is a perspective view in which the push-out pin according to the first embodiment of the device of the present invention can be omitted. Figures 2 and 3 A are explanatory views of the operation in the receiving hole portion. FIG. 4 is a perspective view similar to FIG. 1 of a second embodiment of the device of the present invention. 5 and 6 are an overall sectional view and a partial view of the same device. FIG. 7 is a perspective view of the screw type rough sorting device of the present invention. 2... Rotating screw, 3... Fixed shaft, 5... Chute section, 11... Rotating drum, 12... Receiving hole, 13... Pushing disk , 14... Ring groove, 15... Push-out pin, 16... Spring, 18... Fixed cam. Figure 1 Figure 2 Figure 3 Figure 7 Figure 4 Figure 5 Figure 6

Claims (1)

[Scope of Claims] 1. A rotating drum provided with a receiving hole around its circumference, which has an inner diameter that is approximately the same diameter or slightly larger than the cap portion of a non-defective capsule, and smaller than the outer diameter of a defective capsule due to deformation, etc.; It consists of a push-out pin that is slidably installed in a receiving hole and slides on a fixed cam, and a pushing disk that pushes the capsule into the receiving hole, and a defective product that is pushed into the receiving hole by the pushing disk. A defective capsule sorting device characterized in that the capsules are ejected by the ejection pin. 2 The rotating drum is placed on the outer periphery of the fixed cam, and the push-in disk is placed on the outer periphery of the rotating drum, and the push-out pin, which is slidably housed in the receiving hole of the rotating drum, is always directed toward the fixed cam by a spring. The defective capsule sorting device according to claim 1, wherein the capsules are brought into contact with each other. 3. The entrance part of the receiving hole of the rotating drum is formed into a tapered shape,
2. A defective capsule selection device according to claim 1, further comprising a push-in disk fitted into a ring-shaped groove connecting said inlet portion. 4 A rotary drum with a receiving hole around its circumference having an inner diameter that is approximately the same diameter or slightly larger than the cap part of a good capsule, and smaller than the outer diameter of a defective capsule such as deformation, and a rotating drum that slides into the receiving hole. A sorting device is composed of a push-out pin that is freely installed and slides on a fixed cam, and a push-in disk that pushes the capsules into the receiving hole. A defective capsule selection device comprising: a screw-type rough sorting device for sorting out defective capsules, and a chute section for supplying capsules of a size that can be sorted from the gap to the receiving hole. 5. The defective capsule sorting device according to claim 4, wherein steps are provided in steps in the gap width. 6. The defective capsule sorting device according to claim 4 or 5, which comprises a single fixed shaft and a double rotating screw.