JPH0723727Y2 - One-point ampoule strength tester - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a one-point ampoule strength tester for measuring the cutting moment when the neck of an ampoule containing an injection drug or the like is cut.

[Conventional technology]

Ampoules containing various drugs such as injectable drugs have been widely used because of convenience in use and ease of quality control. Ampoules containing such injections are cut by hand at the time of use, but as a cutting method, a file ampoule or ampoule's neck that is cut after making a scratch in the neck narrowing part beforehand with a file is used. There are types such as a one-point ampoule or a clear cut ampoule that has been specially designed. Of these, the number of one-point ampoules, which has a low risk of cutting fragments being mixed with the drug solution in the ampoule in recent years, is increasing. In addition, in the transportation stage, it is necessary that the neck portion is not broken, but it is necessary that the neck portion be easily broken when used in a hospital or the like. Due to such demands, a cutting moment measuring device for an ampoule has been developed for researching and measuring an appropriate cutting moment value of the neck of the ampoule. For example, as shown in FIG. 10, an ampoule holder 40 that is movable up and down is provided with an ampoule base 41, and an ampoule P is provided.
The knife edge 43 installed at the bottom of the loading device 42.
There is known a cutting moment measuring device for an ampoule in which a load is applied to the neck of the ampoule P to cut the load, and the load (moment) when the ampoule P is cut is measured by a load cell 44 installed above the knife edge 43. ing.

[Problems to be solved by the device]

There are many types of ampoules, such as capacity and cutting method, and the corresponding cutting moments are different. Therefore, it is necessary to cut the necks of as many ampules as possible and collect data to find an appropriate cutting moment corresponding to the capacity and type and an ampule having such a cutting moment and neck structure. However, a test apparatus in which a large number of test ampoules are set one by one, the test pieces are taken out after the test, and the test pieces are set again is laborious and inefficient. The present invention has been made in view of such a problem, and the purpose thereof is a compact one-point ampoule capable of automatically and efficiently measuring the cutting moment of a large number of ampoule, especially one-point ampoule. It is to provide a strength test apparatus.

[Means for Solving the Problems]

That is, in order to solve the above-mentioned problems, the present invention provides a one-point ampoule strength testing device that includes a turntable that mounts and rotates a large number of ampules, a pulley mounted on the same shaft as the turntable, and a fixed bar. A pulley that is rotatably mounted and that is driven by the pulley and that rotates in the opposite direction to the turntable, and an air passage having an opening at the ampoule adsorption portion are formed inside the ampoule adsorption portion. An ampoule carrying arm provided with a shaft capable of reciprocating rotation on the other end side, an ampoule discharge stay having one end fixed to the shaft and holding the ampoule after the test at the other end, and a one-point search holding the ampoule An ampoule holder provided with a sensor, and a turntable on which the ampoule held by the ampoule holder is placed and rotated.
A knife edge for cutting the neck of the ampoule held by the ampoule holder, and a load measuring device for measuring a load when the knife edge cuts the neck of the ampoule are provided.

[Action]

The operation when the one-point ampoule strength testing device is used as the above means is performed by the sequence control by the arithmetic processing unit (CPU).
The explanation will be as follows using the reference numerals in FIG.

First, the required number of ampoules P are placed on the turntable 3 from the ampoule supply table 1 by the pusher 2.

When the switch is turned on and the motor 31 for driving the turntable 3 and the vacuum pump 32 are started, the three-way valve 13 is turned on (a state in which the ampoule is evacuated). Ampoule transfer arm 9
The ampoule adsorbing portion 9b can adsorb the ampoule.

When the motor 31 for rotationally driving the turntable 3 is driven, the drive pulley 5 mounted coaxially also rotates clockwise, and the crossed round belt 8 causes the pulley 6 to rotate counterclockwise.

Due to the rotation of the turntable 3, the ampoule P moves to the side of the ampoule transfer arm 9 and comes near the tip thereof. In this case, the ampoule passage on the turntable 3 is narrowed so that the ampoule is surely adsorbed to the ampoule suction portion 9b of the ampoule transfer arm 9. However, because of this, the ampoules may interfere with each other and the ampoule may not move. Therefore, the pulley 6 is rotated in the direction opposite to that of the turntable 3.

When the ampoule suction portion 9b of the ampoule transfer arm 9 adsorbs the ampoule P, the vacuum degree of the air passage 9a rises, and when a certain pressure is reached, a signal is sent by the PE switch 17, whereby the motor 31 is stopped, and at the same time the ampoule is stopped. The motor 33 that drives the rotary shaft of the transfer arm 9 is activated.

When the motor 33 is started, the ampoule transfer arm 9 rotates to the ampoule holder 10 side (counterclockwise). At this time, the ampoule transfer arm 9 comes into contact with the microswitch 12 and stops at a fixed position on the ampoule holder 10 side. Motor 33
Also stops and the passage of the three-way valve 13 is also opened to the atmosphere side.
In this way, the ampoule P is set on the one-point search turntable 15 (FIG. 8).

Next, the motor 34 that drives the turntable 15 is activated to rotate the one-point search turntable 15,
When the sensor 14 detects one point of the ampoule, the motor 34 stops. Then, the knife edge 16 moves forward, cuts the neck of the ampoule, and moves backward (Fig. 8).

The load applied to the Ny edge 16 is measured by the load cell 18 and displayed on the digital display panel. And the maximum value,
That is, the load value at the moment when the ampoule is broken is held by the digital display board, and the value is transferred to the printer. The operation of cutting the neck of the ampoule is counted by the counter one by one, and the number of cut ampules is displayed as the measured number.

When the knife edge 16 retracts and returns to the original position, the motor 33 is activated, the ampoule transfer arm 9 rotates and returns to the turntable 3 side, at which time the microswitch 11 is contacted and stopped at a fixed position and the motor is stopped. 33 will also stop (9th
Figure).

The cut ampoule is attached to the ampoule transfer arm 9 while the ampoule transfer arm 9 is rotating.
It is held by the curved part of 9d and discharged from the discharge port 21 formed in the floor plate 20 (Fig. 9).

At the same time when the motor 33 stops, the motor 31 starts and the turntable 3 rotates again.

After that, the ampule neck is cut, the load is measured, and the print is repeated until the count reaches the set value. When the count reaches the set value, all are stopped and the measurement ends.

〔Example〕

FIG. 1 is an overall perspective view of the one-point ampoule strength testing device of the present invention, and FIG. 2 (a) is an ampoule transfer arm 9
2 (b) is a front view thereof, FIG. 3 is an overall plan view of the one-point ampoule strength testing device of the present invention, and FIG. 4 is a front view taken in the direction of arrow Q in FIG. It is a figure.

An ampoule supply table 1 supplies a large number of ampules P onto the turntable 3 by a pusher 2 as shown in FIG. The turntable 3 is driven by a motor 31 so as to rotate clockwise. Reference numeral 5 denotes a drive pulley mounted on the upper part of the same shaft 7 as the turntable 3, and a pulley 6 rotatably mounted on the end of the turntable 3 to the end of a bar 4 installed as a cantilever. The belt 8 is crossed and wound. Therefore, the pulley 6 is driven to rotate counterclockwise.

Reference numeral 9 denotes an ampoule transfer arm, which is shown in FIGS.
An air passage 9a is provided inside the vacuum pump 32
Thus, air is sucked through the air tube 30 (see FIG. 1) and the ampoule P is held by the ampoule suction portion 9b provided at the tip. The ampoule transfer arm 9 is fixedly attached to a shaft 9c that reciprocally rotates at a predetermined angle (about 180 ° in the embodiment). The end of the discharge stay 9d is fixed and attached to the lower part of the shaft 9c. is there. Then, the ampoule carrying arm 9 rotates while holding the ampoule P up to the position of the ampoule holder 10 as shown by the chain double-dashed line about the axis 9c (see FIG. 3), and the adsorbed ampoule P is placed there. It is like this. Reference numeral 33 in FIG. 4 denotes a motor for rotating the shaft 9c. Reference numeral 11 is a micro switch for placing the ampoule transfer arm 9 in a fixed position on the turntable 3 side, and 12 is a micro switch for placing the ampoule transfer arm 9 in a fixed position on the ampoule holder 10 side.

Next, 13 shown in FIG. 4 is a three-way valve,
As shown in the figure, it is arranged in the conduit between the air passage 9a of the ampoule transfer arm 9 and the vacuum pump 32. When the three-way valve 13 is ON, the ampoule transfer arm 9
Air is sucked from the passage 9a of the
And the path of the ampoule transfer arm 9 is opened to the atmosphere side. Reference numeral 17 is a PE switch that sends a signal to the central processing unit (CPU) when the pressure becomes constant.

The ampoule holder 10 is manufactured by fixing two upper and lower plates 10a and 10b with cylindrical members 10c and 10d, and a notch 10e for contacting the head of the ampoule P and a notch 1 for contacting the body.
0f are formed on the upper and lower plates 10a and 10b, respectively.
The ampoule holder 10 is provided with a one-point search sensor 14 provided on the neck of the ampoule P for detecting one point. Furthermore, the ampoule holder
A turntable 15 for one-point search is provided below the notch 10f of the ten ampoule, and the one-point search sensor 14 detects the one-point part of the ampoule P by rotating the ampoule.

Reference numeral 16 is a knife edge for cutting the neck portion of the ampoule P, and it is adapted to be moved forward and backward from the side wall 23 by a motor 35 as shown by an arrow (see FIG. 1). Reference numeral 21 denotes a discharge port formed in the floor plate 20 for discharging the ampoule P after the test is completed. This ampoule discharge is performed by holding the ampoule by pushing the curved part of the discharge stay 9d that rotates together with the ampoule transfer arm 9 and dropping it while the ampoule transfer arm 9 rotates toward the turntable 3 ( (See FIG. 9).

Next, as shown also in FIG. 1, a counter 22 is installed on the side wall 23 to count the number of ampoules P cut during the test. Although not shown, the side wall 23 is provided with a digital display panel for displaying a load value at the time of cutting and a printer for printing this numerical value.

The one-point ampoule strength testing device of the present invention has the above-mentioned configuration, and its operation is based on the central processing unit (CP
It is performed by the sequence control according to U), but it will be described as follows using the reference numerals of FIGS. 7 to 9.

(1) First, from the ampoule supply table 1 to the pusher 2
Then, the required number of ampoules P are placed on the turntable 3. The position of the ampoule transfer arm 9 is determined by the micro switch 11 on the turntable 3 side and stopped (FIG. 7).

(2) When the switch is turned on and the motor 31 and the vacuum pump 32 are started, the three-way valve 13 is turned on (a state in which the ampoule is evacuated), and the ampoule suction portion 9b of the ampoule transfer arm 9 can adsorb the ampoule.

(3) When the motor 31 that rotationally drives the turntable 3 is driven, the drive pulley 5 mounted coaxially also rotates clockwise, and the crossed round belt 8 causes the pulley 6 to rotate counterclockwise.

(4) Due to the rotation of the turntable 3, the ampoule P moves to the ampoule transfer arm 9 side and comes near the tip end portion thereof. In this case, the ampoule passage on the turntable 3 is narrowed so that the ampoule is surely adsorbed to the ampoule suction portion 9b of the ampoule transfer arm 9. However, because of this, the ampoules may interfere with each other and the ampoule may not move. In order to solve such interference between ampoules, the pulley 6 is rotated in the direction opposite to that of the turntable 3.

(5) When the ampoule P is adsorbed by the adsorption part 9b of the ampoule transfer arm 9, the vacuum degree of the air passage 9a rises, and when a certain pressure is reached, a signal is sent by the PE switch 17, whereby the motor 31 is stopped, At the same time, the motor 33 that drives the rotary shaft of the ampoule transfer arm 9 is activated.

(6) When the motor 33 is started, the ampoule transfer arm 9 rotates (counterclockwise) to the ampoule holder 10 side, but at this time the ampoule transfer arm 9 comes into contact with the microswitch 12 and stops at a fixed position on the ampoule holder 10 side. The motor
33 also stops, and the passage of the three-way valve 13 is also opened to the atmosphere side. In this way, the ampoule P is set on the one-point search turntable 15 (FIG. 8).

(7) Next, the motor 34 that drives the turntable 15 is activated to rotate the one-point search turntable 15, and when the sensor 14 detects one point of the ampoule, the motor 34 stops. Then, the motor 35 (see FIG. 3) is activated and the knife edge 16 advances to cut the ampoule neck and move backward (FIG. 8).

(8) The load applied to the knife edge 16 is measured by the load cell 18 and displayed on the digital display board. Then, the maximum value, that is, the load value at the moment when the ampoule is broken is held by the digital display board, and the value is transferred to the printer. The operation of cutting the neck of the ampoule is counted by the counter one by one, and the number of cut ampules is displayed as the measured number.

(9) When the knife edge 16 retracts and returns to the original position, the motor 33 is activated, the ampoule transfer arm 9 rotates and returns to the turntable 3 side, at which time it contacts the microswitch 11 and stops at a fixed position. At the same time, the motor 33 also stops.
The cut ampoule body is the ampoule carrying arm 9
While being rotated, it is held by the curved portion of the discharge stay 9d attached to the ampoule transfer arm 9 and discharged from the discharge port 21 formed in the floor plate 20 (FIG. 9).

(10) At the same time as the motor 33 stops, the motor 31 starts up,
The turntable 3 rotates again.

After that, the ampule neck is cut, the load is measured, and the print is repeated until the count reaches the set value. When the count reaches the set value, all are stopped and the measurement ends.

(11) If, for some reason, one point of the ampoule is not detected even after a certain period of time, the ampoule transfer arm 9 returns to the turntable 3 side, and the uncut ampoule is directly discharged from the discharge port 21. However, it is not counted.

[Effect of device]

Since the one-point ampoule strength testing device of the present invention is configured as described above in detail, the load test when cutting the necks of a large number of one-point ampoules can be quickly and accurately performed by a small number of testers. Further, this one-point ampoule strength test device is relatively simple and can be manufactured at a lower cost than the conventional one. Further, since this one-point ampoule strength testing device can be manufactured relatively compactly, it has a unique effect that it does not take place and has a large processing capacity.

[Brief description of drawings]

FIG. 1 is a perspective view of a one-point ampoule strength testing device of the present invention, FIG. 2 (a) is a plan view of an ampoule transfer arm, FIG. 2 (b) is its front view, and FIG. A plan view of the one-point ampoule strength tester, FIG. 4 is a front view taken in the direction of an arrow Q in FIG. 3, and FIGS. 5 and 6 show a case where the ampoule is sucked and dropped by a vacuum pump or a three-way valve by an ampoule transfer arm. Fig.7, Fig.7 to Fig.9 are explanatory diagrams of operation from picking up and moving of ampoule, detecting one point of ampoule, and cutting neck of ampoule, and Fig.10 is conventional ampoule strength tester for cutting ampoule neck. FIG. 1 ... Ampule supply table, 3 ... Turntable 5 ... Drive pulley, 6 ... Pulley 8 ... Round belt, 9 ... Ampule carrier arm 10 ... Ampule holder 11, 12 ... Micro switch, 13 ... Three-way valve 14 …… One-point search sensor 15 …… One-point search turntable 16 …… Knife edge, 17 …… PE switch 18 …… Load cell, 20 …… Floor plate 21 …… Discharge port, 22 …… Counter 31, 33, 34, 35 …… Motor, 32 …… Vacuum pump

Claims (1)

[Scope of utility model registration request] 1. A turntable on which a large number of ampules are mounted and rotated, a pulley mounted on the same shaft as the turntable, and a turntable mounted on a fixed bar rotatably and driven by the pulley. An ampoule conveyor in which a pulley rotating in the opposite direction and an air passage having an opening in the ampoule suction portion are formed inside one end and a reciprocating shaft is provided at the other end side. An arm, an ampoule discharge stay that has one end fixed to the shaft and holds the ampoule after the test at the other end, an ampoule holder that holds the ampoule and is provided with a one-point search sensor, and an ampoule held by the ampoule holder. A turntable for mounting and rotating a knife, a knife edge for cutting the neck of the ampoule held by the ampoule holder, and a knife edge. Tip ampoule strength testing apparatus comprising and a load measuring device for measuring the load when the di is cut the ampoule neck.