JPS6330202B2 - - Google Patents

Description

Detailed Description of the Invention (Industrial Field of Application) The present invention relates to a drug packaging device that enables a drug packaging device to accurately introduce subdivided drugs into the compartments of successive packaging bags. It is about the method.

(Prior art) When providing prepared medicines to patients at hospitals, clinics, etc., recently prepared powders, tablets, or capsule medicines are individually packaged or packaged according to the prescription. They are combined and packaged or supplied by various means. The packaging methods that have already been adopted include packaging powders and tablets or capsules for one dose as described above, in addition to packaging them together in one bag. , a method has been adopted in which tablets and capsule medicines (hereinafter simply referred to as capsules) are packaged separately, and these dispensed medicines are packaged in a series of continuous packaging devices (hereinafter referred to as drug packaging machines). After the medicine is divided and packaged in sequence, the prescription is delivered to the patient.

Such a continuous drug packaging machine usually uses a method in which a roll of wrapping paper of the required width is pulled out one after another to form a bag and the drug is introduced into a dispensing compartment. For the most part, the purpose has been achieved by taking precautions to prevent the scattering of the powder in the case of the type that accepts the medication while making the bag in a separate bag, but it has become possible to package the medicine with higher efficiency than that of this type. When using horizontal movement type packaging machines, when drugs are sequentially introduced into divided continuous packaging bags, the openings are often sealed before the drugs can be fully inserted into the bag. A complete seal may not be possible due to scattered powder, or sometimes tablets or capsules that were supposed to have been inserted may climb up to the sealing area and be squeezed by the hot platen for sealing operation, causing them to collapse at the opening sealing area, resulting in a seal. There were problems such as not only inability but also accidents such as the inability to package packages themselves.

This phenomenon can be solved by first folding the packaging paper in half in the longitudinal direction and pulling it out from the take-up roll with the folded side facing down, then vertically sealing the first section at the required intervals, and then vertically sealing the first section. The lower chute of the hopper or the lower part of the injection tube is pushed into the bag divided by the hopper to open it, and the medicine is poured into the bag by forcefully opening the continuous bag with the upper part open. Therefore, the drug is being poured into the bag without any space left inside the bag, and the drug does not settle to the bottom of the bag before reaching the next opening seal (horizontal seal). It is thought that the above-mentioned problems will occur as a result. However, despite these problems, the current situation is that no solution has been found yet.

(Objective of the Invention) The present invention solves the problems of the conventional art without taking complicated measures, and makes it possible to reliably inject any kind of drug into the compartmented bag, and to remove the opening from the bag. To provide a method for packaging medicines that can be accurately sealed and can be packaged with high efficiency without causing problems such as scattering of powdered medicines or breakage of tablets, etc.

(Structure of the invention) In order to achieve such an object, the present invention includes the following:
Continuous double-folded packaging paper for drug packaging,
While intermittently moving the folded side down, forming the packaging partitions one after another and making bags,
In a drug packaging machine, in which a required amount of drugs is introduced through a feeding guide, and then the opening is sealed and delivered, the lower end of the drug feeding guide is always placed between the inner edge of the continuous wrapping paper on the opening side to be fed. After allowing the continuous wrapping paper to advance the required length,
The wrapping paper is clamped at the forward position in the direction of travel of the packaging partition section at the drug input position, and at the rear position, the partition section is crimped by a pair of heat seal rolls, and at the same time, the required amount of overfeed is applied to open the bag. After that, the drug injection guide is lowered and the drug is introduced into the packaging partition section.

Therefore, in the method of the present invention, the relationship between the drug injection position and the clamp of the packaging paper and the overfeed roll is such that the drug injection position is located in front of the paper feed (backward with respect to the direction of travel of the wrapping paper). A pair of heat-sealing rolls for partitioning is provided, and the wrapping paper is clamped at a position in front of the pair of heat-sealing rolls, so that the opening of the packaging partition section is overfed while forming the packaging partition with the heat-sealing roll. The opening bulges out at the opening, allowing the drug injection guide to be easily inserted between the packaging partitions.

In the present invention, the operations of each part are all interlocked and performed intermittently in a predetermined order, and the order of operation is set so as to ensure smooth packaging without interfering with the packaging work.

(Example) Below, one example of the method of the present invention will be described in detail with reference to the drawings. Fig. 1 shows a drug packaging machine employing the method of the present invention in which overfeeding is carried out using a heat-sealing roll for dividing the packaging. This is an exploded perspective view of the main parts of the packaging, in which a wrapping paper A that has been folded in half to form a required series of bags is taken up from a winding roll 1 with the folded side facing down, and the tension is kept constant by a tension adjustment roll mechanism 2 of a known structure. A heat-sealing roll mechanism 3 for dividing the packaging in the vertical direction is provided at a position in front of the drug input position A, and a heat seal roll mechanism 3 for dividing the packaging in the vertical direction is provided at the top of the front position. The medicine injection guide 11 is disposed so as to be movable up and down, and the lower end flat parts 11', 11' of the medicine injection guide 11 are interposed between the folded parts of the packaging paper A that is constantly fed out. The loading guide 11 is a cylindrical body of an appropriate length, with both sides of the lower half cut obliquely, and is attached to a support body 12 connected to the lifting operation mechanism 13. A hopper 14 is attached to the upper part of the hopper 14 to connect the guide cylinder to the loading guide. The medicine inlet part 10 is configured to be loosely fitted into the medicine inlet part 11 and move up and down.

Then, a clamp 4 is placed at a position in front of the packaging paper advancing direction from the medicine inputting position A by the medicine inputting part 10, and exactly corresponds to the packaging partition part a, and from this clamp 4 position onward, the packaging is divided as shown in the figure. The incision cutter 5 of the package partition a, the opening b of the packaging bag into which the drug has been inserted, the heat sealing mechanism 6, the clamp 4', and the group of rollers 7 for feeding out the divided continuous wrapping paper are arranged in this order, and the packaging paper A is rolled up. The packaging is sequentially carried out by moving linearly from the take-up roll 1 to the packaged delivery with the folds facing down while keeping the packaging horizontal. The operations of each part are timed so that they operate intermittently and sequentially according to a preset program.The system shown in this embodiment uses a cam. , which is partially disassembled and illustrated, and is configured to operate by distributing power from one drive motor 20 to each part. In addition, 21 is a traversing operation cam mechanism of the opening heat sealing mechanism 6, 22 is a heating plate attachment piece 6' opening/closing drive mechanism of the opening heat sealing mechanism 6, 23 is a traversing guide support of the opening heat sealing mechanism 6, Reference numeral 25 denotes a drive shaft for the clamp operation and the heat seal roll mechanism for separating packages, which are respectively branched and transmitted from the motor 20. 3'' is a drive unit for the heat seal roll.

Of course, although not shown, this packaging machine is equipped with a device at the top for feeding the medicine into a hopper 14 for dispensing the medicine.

Next, to explain the method of the present invention using such a drug packaging machine, when the medicines prepared according to the prescription in the medical record are sequentially supplied to the hopper 14 in the required amount (amount for one package), the The leading part of the packaging paper A fed out from the take-up roll 1 is kept under tension by the rotation of the group of feeding rollers 7, and when it travels the required distance (the length equivalent to a 1-pack bag), its feeding stops and the drug is introduced. The clamps 4 and the heat-sealing roll mechanism 3 for packaging partitions, which are placed before and after position A, operate after the movement of the packaging paper A stops, and the clamps 4 operate to seal the preceding portions that have already been sealed. The upper part of packaging paper A is clamped and fixed at the position of the seal part for partitioning the packaging, and after a little delay, the pair of heat seal rolls 3' of the heat seal roll mechanism 3 just comes into contact with packaging paper A and rotates while clamping it. As described above, the wrapping paper A is clamped at the front position and moved to the rear position by the clamping pressure rotation by the heating parts of the heat seal rolls 3', 3', as shown in Fig. 3. The heating part of the heat seal roll overfeeds the packaging paper A by the amount of rotational displacement from the position where it is sandwiched to the position where it leaves, and at the same time the clamping pressure part is heat sealed to form the packaging partition part a. At the same time as the bag is made, the opening b is actively expanded to the left and right (with respect to the direction of travel). Therefore, the drug injection guide 11, which operates in the following order of operations, can enter the bag (wrapping paper) in a natural state without forcing the opening b into the bag (packaging paper). The medicine supplied into the hopper 14 is directly passed from the guide tube extending into the hopper outlet into the feeding guide 1.
If the drug is solid, such as a tablet or capsule, the inside of the sachet A' is swollen, so it falls to the bottom of the bag. The medicine can be poured into powders (including granules) without being stuck in the middle of the bag.
Even in this case, if the drug is guided by inserting the drug into the bottom of the bag by inserting the drug into the hopper guide 11, it can be introduced into the bottom of the bag like the solid material, and if the hopper 14 is lowered by applying vibrations when the drug is introduced, the hopper guide cylindrical portion This makes it possible to reliably fill the sachet A' without any residue remaining on the input guide 11.

When the drug injection operation is completed, the drug injection guide 11 and the hopper 14 are raised rapidly by the operation of the elevating operation mechanism 13, and only the lower flat portions 11' and 11' of the injection guide are placed in the sachet A. ' remains in the opening b of the packaging paper A and returns to a state where there is no hindrance to the movement of the packaging paper A. At the same time, the cams 26 and 2 on the drive shaft 25
6', the clamps 4, 4' are operated to release the clamp, and then the group of feeding rollers 7 is driven to rotate, and the wrapping paper A (which is driven by clamping the already wrapped part) is moved to the required length. Stop feeding. In this way, when the predetermined size, the packaging paper, and the attached multipacked bags are fed out, the clamp 4' is operated first in the same manner as described above, and then the clamp 4' in front of the medicine input position is moved. is activated to temporarily fix the packaging paper A, and thereafter the above-mentioned operation is repeated to ensure smooth drug injection. In addition, in this example, sachets are used.
At the second pitch after the medicine is put into A', the opening b is pressed and pressed by the hot plate mounting pieces 6' and 6' of the opening heat sealing mechanism 6, and the medicine is heat sealed. (The mechanism 6 returns once the opening is sealed), and the cutter 5 selectively cuts a distinguishing partition into the packaging partition part a according to the conditions of the drug to be packaged. I'm getting used to it. The amount of cut is selected by using cams 27, 27' with electromagnetic clutches shown by chain lines to select between a cam that increases the amount of operation of the cutter 5 and a cam that requires less amount of operation, and operates the cutter via a link mechanism. It's getting old.

As another example, in addition to the above method, the relationship between the drug input position and the packaging partition formation position may be
As shown in Fig. 5, the partitions are first heat-sealed to form bags for each one-pack, and then the packaging paper that has already been made into bags is placed in the next position using 28 pairs of overfeed rolls for the drug input position A. overfeed and
Even if the clamp 4 is temporarily fixed in the above position, the same effect as described in the above specific example can be obtained. In this method, the timing of sealing by the heat seal roll 3' of the partition heat seal mechanism is set so that the wrapping paper is not pulled together, but rather is fed gently toward the overfeed roll in response to the rotation of the overfeed roll 28. It is preferable to set the moving speed of the wrapping paper on the rear side so that

In addition, the medicine injection position and the heat-sealing mechanism for the opening may be provided adjacent to each other, and in this case, the operation timing of the heat-sealing mechanism may be shifted so as not to interfere with the operation of the clamp, as described above. This allows for reliable packaging.

Of course, the method of the present invention is not limited to the apparatus described in the above-mentioned embodiments, and can be applied to any laterally moving type packaging machine by arranging the related operations of each operating part. .

(Effects of the Invention) As described above, according to the present invention, when the packaging paper is continuously folded in two and used to package various medicines, when the packaging paper is fed to the medicine input position, In the process of step 2, the front side of the divided packaging in the direction of travel is clamped and temporarily fixed, and the heat sealing pressure part of the heat sealing roll that forms the compartment partitioning part on the side near the loading position is used to heat seal and at the same time, as appropriate. By overfeeding the amount, the opening of the manufactured sachet bag can be pushed open using the force of the active supply, and the drug injection guide can be inserted into the bag without force, and the bag can also be formed naturally. Because it swells up, the medicine inserted into the bag is sure to reach the bottom of the bag.
Therefore, when sealing the opening, smooth packaging can now be carried out continuously without interfering with the seal and without damaging the drug. It is.

[Brief explanation of the drawing]

The drawings show an embodiment of the method of the present invention, in which FIG. 1 shows an embodiment of a packaging machine for explaining its implementation, FIGS. 2 to 4 show packaging modes, and FIG. FIG. 5 is a diagram showing a separate embodiment. 1... Take-up roll, 3... Heat seal roll mechanism for dividing packages, 3'... Heat seal roll, 4, 4'... Clamp, 6... Opening heat seal mechanism, 7... For feeding Laura, 10...
Drug injection section, 11... Drug injection guide, 14...
Hopper, 28... Overfeed roll, A
...Wrapping paper, A'...Package bag, a...Package partition, b...Opening.

Claims (1)

[Claims] 1 The continuous double-folded packaging paper for drug packaging is moved intermittently, and while packaging partitions are formed one after another and bags are made, the required amount of drugs is injected into the compartments via the injection guide. In a drug packaging machine that seals the drug, the lower end of the drug input guide connected to the hopper is always interposed between the inner edges of the continuous wrapping paper on the opening side, and after the continuous wrapping paper has been advanced a required length, the drug The wrapping paper is clamped at the forward position in the advancing direction of the packaging partition section at the input position, and the partition section is crimped by a pair of heat seal rolls at the rear position, and at the same time, the required amount of overfeed is applied, and the bag making opening is performed. A method for packaging medicine, characterized in that the drug is actively bulged and opened, and then the medicine injection guide is lowered to introduce the medicine into the packaging partition section.