JPH0375414B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a supply device for packaging material in a drug packaging machine.

As shown in FIGS. 1 and 2, a conical portion 3 is formed on the outer periphery of a rotary disk 2 that is rotationally driven by a V-mass rotary motor 1, and a conical cylinder 4 that can be raised and lowered by this conical portion 3. is supported to form an annular V-mass 5 between them, and a large number of divided plates 8 are arranged in an annular manner around the outer periphery of a plate support plate 7 which is disposed below the rotary plate 2 and is rotationally driven by a plate rotation motor 6. and each divided plate 8 is swingably attached to the plate support plate 7, and the plate support plate 7 is
A capacity dividing device is provided with a rail 9 for horizontally supporting the dividing plate 8 on the lower side, and the dividing plate 8 is rotated by its own weight at a cut-off portion 10 formed in a part of the rail 9. has existed for a long time.

The capacity dividing device rotates the rotary disk 2 in one direction by driving the V-mass rotation motor 1, and in the rotating state, the V-mass is
Continuously supplies a predetermined amount of packaged material to the mass,
When a predetermined amount of the sachet material has been deposited uniformly over the entire annular V mass 5, the rotary disk 2 is stopped, and the conical cylinder 4 is raised by the operation of the cam mechanism 11.
The divided cylinder material in the mass 5 is divided into a dividing plate 8 arranged in a lower annular manner.
Then, the tray support plate 7 is rotated by the drive of the tray rotation motor 6, and the separation portion 1 of the rail 9 is rotated.
By swinging the dividing plate 8 at 0, the packaged material on the plate is discharged into the chute 12, and a fixed amount of the packaged material supplied into the chute 12 is discharged by a packaging device (not shown). I try to separate them into separate packages.

As described above, since the capacity dividing device divides the predetermined weight of the packaged material into several equal parts, the packaged material to be supplied to the annular V-mass 5 needs to be weighed in advance.

However, in the past, weighing the packaged material and supplying the weighed packaged material to the metering supply device are inefficient manual operations, which has the disadvantage of poor packaging efficiency.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned drawbacks and provides a packaged material that can continuously and automatically perform the work of measuring the packaged material and the operation of supplying the weighed packaged material to a capacity dividing device. The purpose is to provide a feeding device.

The structure of the present invention is that a first chute is disposed below the supply port of the hopper into which the material to be packaged is placed, and a swingable weighing pan of an electromagnetic scale is positioned below the tip of the first chute, and the weight is dropped from this pan. A second chute is arranged to receive the packaged material after weighing, and the tip of the second chute is connected to the annular V in the volume dividing device.
The packaged material placed in the hopper is discharged from the supply port at the bottom of the hopper onto the first chute by the operation of the quantitative dispensing device, and from the first chute to the receiving tray of the electromagnetic scale. When the sachet material is fed at a constant speed and the measured value reaches the set value, the supply of the sachet material onto the tray is stopped, and the tray is rotated to transfer the sachet material inside to the second chute by gravity. At the same time, the packaged material on the second chute is supplied to the capacity dividing device at a constant rate, and at the same time, the supply of the packaged material to the receiving tray of the electromagnetic scale is started.

An embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 3 shows a schematic diagram of a feeding device according to the invention. This supply device includes a first chute disposed below the hopper 21 for filling the sachet material, an electromagnetic scale disposed below the first chute, and a second chute disposed below the electromagnetic scale. The tip of the second chute of the lever faces a part above the annular V-mass of the divided capacitor device whose details are shown in FIGS. 1 and 2.

As shown in FIG. 4, the hopper 21 has a bottom plate 22, and a supply port 23 is provided on the outer periphery of the bottom plate 22.
is formed. Further, a pressure receiving plate 24 is provided at the lower part of the inner circumference of the hopper 21 and extends above the supply port 23 . The packaged material filled in the hopper 21 is discharged from the supply port 23 by the operation of the quantitative dispensing device 25.

The quantitative dispensing device 25 is connected to the bottom plate 22 of the hopper 21.
A plurality of blades 27 are provided at equal intervals around the outer periphery of a rotatable cone 26 placed above, and the cone 26 is rotated by a motor 28 attached to the lower part of the hopper 21.

Note that if a rotating shaft 29 that is rotationally driven by the motor 28 is inserted into the center of the cone 26 and a stirring rod 30 is attached to this rotating shaft 29, the hopper 21
It is possible to prevent bridges from forming inside.

The packaged material discharged from the supply port 23 of the hopper 21 flows down into a guide tube 31 provided below the supply port 23. As shown in FIG. 5, the guide tube 31 is provided with a light-transmitting part 32 at an upper facing position, a light emitter 33 is provided on one side sandwiching the light-transmitting part 32, and a light receiving element 34 is provided on the other side.
is arranged to detect the packaged material inside the guide cylinder 31,
The operation of the motor 28 of the quantitative dispensing device 25 is controlled by the detection signal.

The packaged material discharged from the lower outlet of the guide cylinder 31 is received by the first chute 41 . This first
The chute 41 and the chute support plate 42 are connected via two leaf springs 43 arranged in parallel, and the chute support plate 41 is supported by a spring 46 supported by a frame 44 to direct the first chute 41 toward the tip. It is sloped with a gentle slope. Further, a vibrator 47 is attached to the chute support plate 42, and when this vibrator 47 is operated, the first chute 41 is slightly vibrated.

The electromagnetic scale 51 disposed below the first chute 41 has a weighing object tray 53 placed on a tray support plate 52, and the tip of the tray 53 is swingable to the tray support plate 52 via a pin 54. The receiving tray 53 is located below the tip of the first chute 41. This electromagnetic scale 51 is designed to stop the vibrator 47 when the packaged material supplied onto the saucer 53 reaches a set value, and at the same time, the saucer tilting device 6
1 is activated.

The saucer tilting device 61 has a saucer tilting cam 63 mounted on a drive shaft 62 horizontally provided below the electromagnetic scale 51.
is mounted and raised by the rotation of this cam 63,
A connecting pin 66 is provided at the upper end of the rod 65 which can be raised and lowered by the elasticity of the spring 64, and this connecting pin 66 is inserted into the horizontally elongated hole 68 of the plate 67 attached to the side surface of the saucer 53. Rotation causes the saucer 53 to swing around the pin 54.

The drive shaft 62 is rotationally driven by a plate tilting motor 69 shown in FIG.

As shown in FIGS. 6 and 7, an introduction tube 71 is arranged below the saucer 53 of the electromagnetic scale 51.
The second chute 81 is located below this introduction tube 71.
is located.

The introduction tube 71 has an arm 7 provided on its back side.
2 is attached to a bracket 73 with an appropriately fixed end, and is swingably supported by a support shaft 74, and when the sachet material is discharged from the receiving tray 53, it swings downward and its lower end becomes the 2, so as to come into contact with the upper surface of the chute 81.

Here, the means for swinging the introduction tube 71 is to attach a tube elevating cam 75 to the drive shaft 62, and this cam 7
A swing arm 76 swingably supported on the outer periphery of 5
The ends of the swinging arm 76 and the introduction cylinder 71 are connected by a rod 77, and a spring 78 is applied to the introduction cylinder 71 to deflect it downward.

A second chute 81 located below the introduction tube 71 is connected to a chute support plate 83 via two parallel leaf springs 82 in the same way as the first chute 41, and the chute support plate 83 is supported by a spring 85. It has a gentle downward slope toward the tip, and when the vibrator 86 attached to the support plate 83 is activated, it vibrates slightly.

The tip of the second chute 81 faces above the outer periphery of the annular V-mass 5 in the capacity dividing device A, and
Packed material can be supplied to the annular V-mass 5 from the tip of the chute 81.

Note that the vibrator 86 that applies vibration to the second chute 81 is activated when the plate tilting motor 69 rotates the drive shaft 62 once and then stops.

The feeding device shown in the example has the above structure,
Next, its effect will be explained.

Now, after filling the inside of the hopper 21 with the packaging material, when the start switch of the device is activated,
First, the motor 28 of the quantitative dispensing device 25 is started to rotate the rotor 26 in one direction. Due to this rotation of the rotor 26, the blades 27 on the outer circumference of the rotor
The packaged material located in between is continuously discharged from the supply port 23 and falls from the guide cylinder 31 onto the first chute 41 . At this time, vibration is applied to the first chute 41 by the action of the vibrator 47, and since the first chute 41 is inclined with a gentle downward slope toward the tip, the first chute 41 The divided cylinder material that has fallen onto the balance 41 is conveyed forward at a constant speed, and is supplied onto the receiving tray 53 of the electromagnetic scale 51 from the tip of the chute.

When the amount of packaged material continuously supplied onto the tray 53 increases and its weight reaches the set value stored in the electromagnetic rod 51, the vibrator 47 is activated by the weighing signal from the scale 51. Then, the supply of the packaged material to the receiving tray 53 is stopped. At this time, since the quantitative dispensing device 25 operates and supplies the sachet material into the guide tube 31, the sachet material accumulates inside the guide tube 31,
When the sachet material is deposited to a position where it blocks the light emitted from the light projector 33, the light receiving element 34 is activated and the motor 28 is stopped.

When the weight of the packaged material supplied onto the saucer 53 reaches the set value, the motor 6 of the saucer tilting device 61 is activated.
9 operates to rotate the drive shaft 62 once, so the tray 53 of the electromagnetic scale 51 swings, and at the same time the introduction tube 7
1 is lowered by the elasticity of the spring 78 and its lower end comes into contact with the second chute 81, and the packaged material after the amount of stick is introduced into the introduction tube 71. After loading the packaged material, the tray 53 returns to its original horizontal state, and the introduction cylinder 71 also rises due to the action of the cam 75.
In the second chute 81 a fixed amount of sachet material is supported.

When the drive shaft 62 that tilts the saucer 53 rotates once and stops, the first chute 41 and the second
Vibrators 47 and 86 that apply vibration to the chute 81
are actuated to apply slight vibrations to each chute 41, 81, and at the same time, the dish rotating motor 1 of the capacity dividing device A is actuated to rotate the rotary disk 7 in one direction at a constant speed.

By applying a slight vibration to the first chute 41, the packaged material on the first chute 41 is conveyed forward at a constant speed in the same manner as described above and is supplied onto the tray 53 of the electromagnetic scale 51, while By applying a slight vibration to the second chute 81, the packaged material on the second chute 81 is conveyed at a constant speed toward the tip of the chute, and from the tip of the second chute 81, an annular V mass rotating in one direction is formed. 5.

The packaged material on the second chute 81 is supplied at a constant speed onto the annular V-mass 5 that rotates in one direction at a constant speed, so that the packaged material is uniformly distributed over the entire V-mass 5. When the sachet material on the second chute 81 is completely discharged, the dish rotating motor 6 stops, and at the same time the cam mechanism 11 operates to raise the conical cylinder 4. Therefore, the packaged material in the V-cell 5 falls by gravity into the annularly arranged dividing tray 8 provided below and is divided into a certain amount, and then the tray support plate 7 is driven to rotate, and the rail 9 is separated. Part 10
By the swinging of the dividing plate 8, the packaged material in the multi-dividing plate 8 is discharged.

As described above, in the present invention, the sachet material filled in the hopper is discharged onto the lower first chute by the action of the quantitative dispensing device, and the first chute is subjected to slight vibrations. The sachet material is conveyed at a constant speed to the receiving tray of the electromagnetic scale, and when the weighing value of the electromagnetic scale reaches the set value, the supply from the first chute is stopped, and the receiving tray is swung so that the upper sachet The material is discharged onto the second chute, and the upper part of the packaged material is conveyed at a constant speed by the slight vibration applied to the second chute and supplied to the capacity dividing device. The packaging material can be automatically supplied, and when the packaging material is supplied to the capacity dividing device, the packaging material is supplied from the first chute to the electromagnetic scale and weighed, so that it can be connected to the capacity dividing device. In the packaging device, packaging operations can be performed extremely efficiently. In addition, because the electromagnetic scale weighs the packaging material for several packages, and the volume of the weighed packaging material is divided into several packages using a volume dividing device, even if the electromagnetic scale has a weighing error, By dividing the packaging material into several packages using a volume dividing device, the error per package can be made extremely small.

[Brief explanation of drawings]

Fig. 1 is a vertical sectional front view of a capacity dividing device used in a drug packaging machine, Fig. 2 is a plan view showing a part of the same plate support plate, and Fig. 3 is a diagram showing the device according to the present invention in relation to the capacity dividing device. Schematic diagram of the dedicated preformulation machine, No. 4
The figure is a longitudinal sectional front view of the same hopper, FIG. 5 is a front view showing the first chute and electromagnetic scale, FIG. 6 is a side view showing the second chute part, and FIG. 7 is the same as the one shown in FIG. FIG. 2 is a partially cutaway sectional view taken along the - line. 21... hopper, 22... bottom plate, 23... supply port, 25... quantitative dispensing device, 41... first chute, 47... vibrator, 51... electromagnetic scale, 53
...Saucer, 61...Saucer tilting device, 81...Second
Shoot, 86...exciter.

Claims (1)

[Claims] 1. A first chute is provided below the hopper having a quantitative dispensing device to receive the packaged material discharged from the hopper, and to transport the packaged material forward at a constant speed by being slightly vibrated by the operation of the vibrator. 1. A swingable weighing tray of an electromagnetic scale is arranged below the tip of the chute, and a saucer tilting device is provided for rotating the weighing tray when the amount of packaged material falling into the weighing tray reaches a set value; The tip of the second chute is connected to the capacity dividing device, which receives the packaged material that falls due to the rotation of the weighing pan, and which is vibrated slightly by the operation of the vibrator and conveys the packaged material forward at a constant speed. It is arranged above an annular V-mass that rotates in one direction, and transports the weighed packaging material from the second chute to the capacity dividing device, and transports the packaging material from the hopper and the first chute to the receiving tray of the electromagnetic scale. A supply device for packaging material in a drug packaging machine that automatically controls the operation of a saucer tilting device and a vibrator so that the following operations are performed at the same time.