JPH0585519A - Ptp packaging device for medicine - Google Patents

Abstract

PURPOSE:To prevent slipping or backward tilting of a medicine from happening by a method wherein a shoot which feeds medicine to a drum is arranged in a range in which the vertical directional element in the rotational speed of the drum becomes larger than the horizontal directional element, and at the same time, the loads of the upper medicines are added to the medicine at the lowest layer. CONSTITUTION:When a drum 1 rotates, and a recess 2 reaches a specified location, a stopper 70 retreats, and a medicine in a shoot 50 drops. At this time, a medicine 9a at the lowest layer first comes into contact with the front wall of the recess 2. Then, a medicine 9b, which is second from the bottom, reaches a specified location of the shoot 50. Then, the topper 70 advances, and presses the medicine 9b which is second from the bottom to a groove part 50a of the shoot 50. During this period, the medicine 9a at the lowest layer is always in contact with the wall of the recess 2, and receives the load from the top, and therefore, bound or backward tilting does not take place. In addition, since respective medicines 9a-9b are laminated in the groove 50a without gap, slipping does not take place either. Then, respective medicines 9 are filled in PTP pockets 4 on a film 3 in order.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drug PTP packaging device,
In particular, the present invention relates to an improvement in a structure for supplying tablets or capsules to a drum used as a pre-process for filling a drug (tablets, capsules, etc.) in a PTP pocket of a plastic film.

[0002]

2. Description of the Related Art As disclosed in, for example, Japanese Utility Model Laid-Open No. 29407/1993, recesses for accommodating tablets or capsules are formed in a matrix on the circumference of a drum, and recesses on the drum are provided from above the drum. A PTP packaging device that once supplies tablets or capsules and fills the PTP pocket of the plastic film below the drum in synchronization with the rotation of the drum with the drug (tablets or capsules, etc.) through the drum. Known (not shown by public knowledge).

FIG. 5 shows the structure of a portion for supplying tablets or capsules to a drum in a conventional PTP packaging device.
Shown in. In FIG. 5, on the surface of the drum 1, there are formed recess rows 2 (rows parallel to the rotation axis of the drum) for accommodating eight rows of tablets or capsules, for example, every 45 degrees in the rotation direction of the drum. There is. A plurality of (for example, 10) recesses 2 are provided in one row in a direction perpendicular to the paper surface. The drum 1 is rotated counterclockwise in the figure at a constant speed, for example. Below the drum 1, a plastic film 3 having a PTP pocket 4 is fed rightward in the figure at a constant speed in synchronization with the rotation speed of the drum 1. A chute 5 for supplying tablets or capsules is provided at a position advanced by 25 degrees in the rotation direction with reference to a vertical line X passing through the rotation axis of the drum 1. Position and drum 1 for supplying tablets or capsules of short 5
Between the lower portion of the drum 1 and the position where the PTP pocket 4 of the plastic film 3 is filled with tablets or capsules, the guide 6 faces the surface of the drum 1 and is separated by a predetermined distance.
Is provided.

The shout 5 is a tablet or capsule 9
has a groove 5a through which a, 9b, 9c ... Pass and two upper and lower stoppers 7 and 8 for holding tablets or capsules 9a, 9b, 9c. The tablets or capsules 9a, 9b, 9c ... Are continuously supplied to the short 5 from a hopper (not shown) or the like. The upper stopper 7 and the lower stopper 8 are separately driven. The lower stopper 8 closes the groove 5a and prevents the tablet or capsule (for example, 9b) from falling below it. On the other hand, the upper stopper 7 is pressed against the side of another tablet or capsule (for example, 9c) to prevent the tablet or capsule 9c from falling. The surface 1a of the drum 1 is in contact with the tablet or capsule 9a, and the tablet or capsule 9a is held by the side wall 5b of the shute 5 so as not to fall.

The arrangement of the PTP pockets 4 of the plastic film 3 is set so that the number of one row and the arrangement in the direction perpendicular to the paper surface coincide with the rows of the recesses 2 on the drum 1. However, the plastic film 3 PT
The spacing between the rows of the P pocket 4 is equal to or narrower than the spacing between the rows of the recesses 2 on the drum 1. That is, depending on one drum 1, for example, the PTP pocket 4 of the plastic film 3 may be filled with tablets or capsules only every other line. In this case, another drum 1 and a shout 5 are provided at positions separated by a predetermined distance (not shown for obvious reasons).

Next, the operation of the conventional example will be described. As shown in FIG. 5, while the tablet or capsule 9a contacts the surface 1a of the drum 1, the drum 1 rotates counterclockwise.
As shown in FIG. 6, when the tablet or capsule 9a reaches the front end of the recess 2, the tablet or capsule 9a
Starts falling on recess 2. As shown in FIG. 7, the tablet or capsule 9a that has dropped onto the recess 2 is held in the recess 2 as it is (shown in FIG. 8) and is conveyed by the rotation of the drum 1. Next, the stopper 8 below the short 5 in FIG.
Fall on the surface 1a of the drum 1. Lower stopper 8
When is returned so as to close the groove 5a of the short 5, the upper stopper 7 is retracted, and the tablet or capsule 9c is prevented from falling further by the lower stopper 8. By repeating this operation, tablets or capsules are continuously supplied to the recess 2 on the drum 1.

[0007]

In the structure for supplying the tablets or capsules to the drum in the conventional PTP packaging apparatus configured as described above, as shown in FIG. It is assumed that the dropped tablet or capsule does not bounce and is completely stored in the recess 2 as shown in FIG. However, actually, as shown in FIG. 9, with a certain probability, the tablets or capsules once dropped on the recess 2 bounce,
In the meantime, when the drum 1 further rotates, the tablets or capsules protrude from the recess 2 and run on the surface of the drum 1 (hereinafter referred to as “back lean”). When the drum 1 is further rotated in this state, the loaded tablets or capsules 9x are guided by the guide 6 and the drum 1.
It is sandwiched between and and destroyed.

Further, the powder generated from the tablets or capsules adheres to the groove 5a of the shute 5, and the coefficient of friction of the surface of the groove 5a increases. As a result, the groove portion 5a of the short 5
A phenomenon in which the tablets or capsules do not drop smoothly inside and are not continuously supplied onto the recesses 2 of the drum 1, that is, “dropout” occurs.

In addition, in FIG. 5, when the mounting position of the shute 5 is moved close to 45 degrees, the tablet or capsule comes into contact with the surface of the drum, and the friction force generated at that time causes the tablet or capsule to contact the tip of the shute 5. It may be pinched between the drum surface and break. This phenomenon is likely to occur particularly in tablets and capsules having poor slipperiness, and in tablets and capsules having a small size.

The present invention has been made in order to solve the above problems, and an object thereof is to obtain a drug PTP packaging apparatus in which the occurrence of "back leaning" and "fallout" is prevented.

[0011]

Means for Solving the Problems P of a drug according to the present invention
The TP packaging device has PTP pockets arranged in a matrix, and has a plastic film which is conveyed in a horizontal direction at a constant speed, and a plurality of recess rows provided above the plastic film for containing a drug. Then
A drum that is rotated at a constant speed so that each recess row and one row of the PTP pocket are synchronized with each other, and advances by 45 degrees or more and 75 degrees or less in the rotating direction of the drum with reference to a perpendicular line passing through the rotation axis of the drum. In a certain range, which holds the medicines in a vertical direction in a stacked manner and supplies the medicines to each of the recess rows of the drum from above in a vertical direction. And a stopper for holding the lowermost row and dropping the medicine in the lowermost row into the recess in synchronization with the rotation of the drum.

[0012]

In the range of 45 degrees or more and 75 degrees or less in the rotation direction of the drum, the horizontal component of the drum rotation speed is smaller than the vertical component, and the vertical component is smaller than the drug dropping speed. .. Furthermore, since the drug in the bottom row (layer) of the shute is loaded by all the drugs in the shute, even if powder adheres to the shute and the friction coefficient increases, it will surely fall into the recess and " Does not occur. In addition, since the drug immediately above is placed on the drug in the lowermost layer at the time of falling on the recess, it does not bounce and "back lean" does not occur.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A PTP packaging apparatus for medicines according to the present invention will be described with reference to FIGS. 1 to 4 showing a preferred embodiment thereof. 1 is a side sectional view showing a structure of a drug PTP packaging apparatus according to the present invention, and FIGS. 2 to 4 are partial sectional views showing an operation of supplying a drug (tablet or capsule) to a recess on a drum. is there.

In FIG. 1, the surface of the drum 1 is formed with recess rows 2 (rows parallel to the rotation axis of the drum) for accommodating eight rows of tablets or capsules, for example, every 45 degrees. A plurality of (for example, 10) recesses 2 are provided in one row in a direction perpendicular to the paper surface. The drum 1 is rotated counterclockwise in the figure at a constant speed, for example. Below the drum 1, a plastic film 3 having a PTP pocket 4 is fed rightward in the figure at a constant speed in synchronization with the rotation speed of the drum 1. Drum 1
A chute 50 for supplying tablets or capsules is provided at a position advanced by 60 degrees in the rotation direction with respect to a perpendicular line X passing through the rotation axis of the. The position where the tablets or capsules are supplied by the short 50 and the tablets or capsules below the drum 1 are set to P of the plastic film 3.
Between the position where the TP pocket 4 is filled, a guide 6 is provided facing the surface of the drum 1 and at a predetermined interval.

Shute 50 is a tablet or capsule 9
It has a groove 50a through which a, 9b, 9c ... Pass and one stopper 70 for holding the tablet or capsule 9a in the lowermost layer (lowermost row) at a predetermined position. Groove 50
a, tablets or capsules 9a, 9b, 9c.
.., unlike the conventional example, the tablet or capsule 9a in the lowermost layer is held in a laminated state, and the tablets or capsules 9a in the lowermost layer retain all the remaining tablets or capsules 9b, 9b.
The weight of c ... Is added as a load. The stopper 70 holds the lowermost tablet or capsule 9a in the predetermined position by laterally pressing the tablet or capsule 9a from the side with a predetermined pressure against the inner wall of the groove 50a of the shout 50.

The arrangement of the PTP pockets 4 of the plastic film 3 is set so that the number of one row and the arrangement in the direction perpendicular to the paper surface are the same as the rows of the recesses 2 on the drum 1, as in the conventional example. There is. However, as in the conventional example, the PTP pocket 4 of the plastic film 3 is used.
The distance between the rows of the recesses is equal to or smaller than the distance between the rows of the recesses 2 on the drum 1. That is, one drum 1
In some cases, for example, the PTP pocket 4 of the plastic film 3 can be filled with tablets or capsules only every other line. In this case, another drum 1 and a shout 50 are provided at positions separated by a predetermined distance (not shown for obvious reasons).

Next, the operation of this embodiment will be described. First, as shown in FIG. 2, it is assumed that the tablet or capsule 9a is held by the stopper 70 at a predetermined position in the short 50. Drum 1 rotates, recess 2
Has reached the position shown in FIG. Here, Stopper 7
0 moves backward to the left in the figure, and all the tablets or capsules 9a, 9b, 9c ... The lowermost tablet or capsule 9a contacts the front wall of the recess 2 on the drum 1. Next, as shown in FIG. 4, when the drum 1 further rotates, the second tablet or capsule 9b from the bottom reaches a predetermined position in the short 50. At this time, the stopper 70 operates in the right direction in the figure, and holds the second tablet or capsule 9b from the bottom by horizontally pressing it against the inner wall of the groove 50a of the shout 50 with a predetermined pressure from the side. During this time, the tablet or capsule 9a in the lowermost layer is always in contact with the front wall or the bottom wall of the recess 2 and is not bound because it receives a load from above, and the "back lean" phenomenon does not occur. further,
Since the tablets or capsules 9a, 9b, 9c, ... Are held in the groove portion 50a of the shute 50 in a laminated state with no space therebetween, the "dropout" phenomenon does not occur.

In the above embodiment, the shout 50 is 6 in the rotational direction with respect to the perpendicular line X passing through the rotary shaft of the drum 1.
Although it is provided at a position advanced by 0 degree, it may be provided within a range of 45 degrees or more and 75 degrees or less in the rotation direction. That is, if it is 45 degrees or less, the horizontal component of the rotation speed of the drum 1 is larger than the vertical component. Therefore, when the tablet or capsule 9b second from the bottom is held by the stopper 70, Recess 2 with capsule 9a
There is a risk of being pinched between the bottom wall of the tablet and the second lowest tablet or capsule 9b. On the other hand, at 75 ° or more, most of the rotation speed of the drum 1 becomes a vertical component, and the vertical component is tablets or capsules 9a, 9b, 9
If the falling speed of c ... is exceeded, the tablet or capsule 9a may not drop onto the recess 2.
Further, there may be a case where a sufficient opening for supplying the tablet or capsule 9a to the recess 2 cannot be obtained between the drum 1 and the guide 6.

[0019]

As described above, according to the present invention, tablets or capsules 9a, 9b, 9c ...
Is provided in a range in which the vertical component of the rotation speed of the drum 1 is larger than the horizontal component, and the tablets or capsules 9a in the lowermost layer are provided with all the remaining tablets or capsules in the shoot 50. 9b, 9c
Since the load of ... is applied, even if powder adheres to the inside of the shute and the friction coefficient increases, the tablet or capsule 9a in the lowermost layer surely falls onto the recess and "falls out". Also, since it does not occur and the tablet or capsule 9b immediately above (second from the bottom) is placed on the tablet or capsule 9a in the lowest layer at the time of dropping onto the recess, the tablet or capsule in the lowest layer is present. The agent 9a does not bounce on the recess 2 and "back leaning" does not occur. Therefore, there is an effect that reliable PTP packaging is performed.

[Brief description of drawings]

FIG. 1 is a side sectional view showing a configuration of a PTP packaging device for medicines according to the present invention.

FIG. 2 shows the medicine (tablet or capsule) of the medicine PTP packaging apparatus according to the present invention, which is transferred from the shute 50 to the drum 1.
Partial cross-sectional view showing the operation of supplying the upper recess 2

FIG. 3 shows a medicine (tablet or capsule) of the medicine PTP packaging apparatus according to the present invention, which is transferred from the shute 50 to the drum 1.
Partial cross-sectional view showing the operation of supplying the upper recess 2

FIG. 4 shows the medicine (tablet or capsule) of the PTP packaging device for medicine according to the present invention, which is transferred from the shoot 50 to the drum 1.
Partial cross-sectional view showing the operation of supplying the upper recess 2

FIG. 5 is a side sectional view showing a configuration of a conventional PTP packaging device for medicines.

FIG. 6 is a partial cross-sectional view showing an operation of supplying a drug (tablet or capsule) of a conventional drug PTP packaging device to a recess 2 on a drum 1.

FIG. 7 is a partial cross-sectional view showing an operation of supplying a drug (tablet or capsule) of a conventional drug PTP packaging device to a recess 2 on a drum 1.

FIG. 8 is a partial cross-sectional view showing an operation of supplying a drug (tablet or capsule) of a conventional drug PTP packaging device to a recess 2 on a drum 1.

FIG. 9 is a partial sectional view showing a “back lean” phenomenon of a drug (tablet or capsule) of a conventional drug PTP packaging device.

[Explanation of symbols]

 1 Drum 2 Recess 3 Plastic Film 4 PTP Pocket 6 Guide 9a, 9b, 9c ... Tablet or Capsule 50 Short 50a Groove 70 Stopper

Claims (2)

[Claims] 1. A plastic film having PTP pockets arranged in a matrix, which is conveyed at a constant speed in a horizontal direction, and a plurality of recess rows provided above the plastic film for containing a drug. A drum that is rotated at a constant speed so that each recess row and one row of the PTP pocket are synchronized, 45 degrees or more and 75 degrees or more in the rotation direction of the drum with reference to a perpendicular line passing through the rotation axis of the drum. It is provided in one position in the advanced range below and holds the drug vertically stacked,
A chute for supplying a drug to each of the recess rows of the drum from a vertically upper direction, holding a lowest row of the stacked drugs provided on the shute, and synchronizing the rotation of the drum with the A PTP packaging device for a drug, comprising a stopper for dropping the drug in the lower row into the recess. 2. The drug PTP packaging apparatus according to claim 1, wherein the shout is at a position advanced by 60 degrees in the rotating direction of the drum.