JP2500702B2 - Shooting equipment for powder packaging machines - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chute device of a powder packaging machine used, for example, for producing a packaging sheet for powdered pharmaceutical products.

[0002]

2. Description of the Related Art FIGS. 3 and 4 show a conventional example of an apparatus configuration for forming a pharmaceutical powder into a packaging sheet. In FIG.
A fixed shutter 12 is slidably arranged below the movable shutter 10 for measuring which is movable in the horizontal direction. The movable shutter 10 is provided with a metering port 14, and the fixed shutter 12 is provided with a discharge port 16 on the movable side of the movable shutter 10. A hopper 18 is connected to the discharge port 16, and the hopper 1
A nozzle-shaped chute 20 is arranged below the nozzle 8.
The two sheet-shaped films 1 and 2 are continuously run so as to sandwich and receive the powder falling from the chute 20. Reference numeral 22 denotes a drum of a sealing device that press-bonds the films 1 and 2, and has cross-shaped projections 24 that overlap each other.

When the powder is fully loaded in the measuring port 14 and is scraped off so as to be flush with the upper surface of the movable shutter 10, the movable shutter 10 is reached until the measuring port 14 reaches the discharge port 16. Is moved horizontally and the powder is dropped.

This powder is dropped from the chute 20 onto the films 1 and 2 by the opening operation of the damper 19 and is sandwiched, and the films 1 and 2 are heat-sealed in the four peripheral regions of the powder, and the sheet-like encapsulation 3 Becomes 3a is film 1, 2
It is a fusion splicer of comrades. 3b is a portion in which the powder is filled.

By the way, the powder dropped from the shutters 10 and 12 is diffused in the hopper 18, causing a delay in dropping. This powder falls from the damper 19 and reaches the films 1 and 2 with a certain distribution over time due to variations in the falling speed of the powder particles from the chute 20. That is, some of the powders lag behind the other powders in the films 1, 2
It drops upward and becomes caught in the fusion-bonded portion 3a.

Therefore, conventionally, a suction device is provided so as to suck and discharge the powder, which has been delayed in falling, from the chute 20.

In the conventional suction device, a nozzle attached to each of the chutes 20, a suction device installed separately from the packaging device, a hose connecting the nozzle and the suction device, and a suction pipe independent from each other are shut off. It is composed of a valve and.

[0008]

In this type of powder packaging apparatus, a plurality of chutes 20 are arranged in parallel. Therefore, in the above-mentioned conventional suction device, many hoses have to be attached to and detached from the nozzle at the time of replacement or inspection, which requires a great deal of work and labor, and a large variety of small-volume production (especially in the case of pharmaceuticals, It is not suitable for high-mix low-volume production.)

The present invention aims to solve the above problems and achieve the following. 1. A shutter for dust collection is installed near the tip of the chute in order to improve the quality at the time of high-speed filling of contents containing fine powder to eliminate dust and the like on the sealing surface. 2. Eliminate the difference in dust collection power between rows. (The dust collection force becomes weaker as the dust collection shutter becomes farther away, and the dust collection force varies depending on the row.) Use a structure with excellent parts washability. 4. Reduction of setup time. (Cleaning etc.)

[0010]

A chute device of a powder packaging machine according to the present invention is arranged below a powder weighing device, and the powder dropped from the weighing device is packaged in a pair of sealing devices. A chute device for guiding between films, the chute body for guiding the powder, an elevating device for the chute body, and a chute body detachably attached to the elevating device and inserted into the chute body. A first suction pipe that inhales from a lower portion, a second suction pipe that is inserted into the chute body and inhales from an upper portion thereof, and a suction main pipe to which these first and second suction pipes are connected, and the first and second suction pipes. The second suction pipe is provided with a suction switching mechanism that connects and disconnects the communication between the suction pipe and the main suction pipe.

[0011]

The chute device of the powder packaging machine of the present invention guides the powder dropped from the weighing device to the sealing device, and sucks air from the upper part of the chute body while the powder is not falling. , Suction and discharge the floating powder from all around the chute body.

When the powder is fed from the metering device, the suction is temporarily stopped, and immediately after most of the powder has passed the lower end of the chute body, the suction is performed from the lower part of the chute body.

Then, a small amount of the powder, which is about to pass through the chute body with a time delay, is sucked and discharged from most of the powder, and the delayed powder falls on the film and is caught in the fusion portion. It is prevented from being caught.

In the chute device of the powder packaging machine of the present invention, the first and second suction pipes are respectively inserted into the chute body and can be separated from the chute body. Further, since these first and second suction pipes are connected to the suction main pipe, the first and second suction pipes and the suction main pipe can be simply disconnected from the suction main pipe and the suction machine. The connection between the suction tube group and the suction device is released.

Therefore, the suction pipe group (the first and second suction pipes and the suction main pipe) can be removed only by disconnecting the connection between the suction main pipe and the suction machine, and conversely, the suction main pipe and the suction main pipe. The connection between the suction tube group and the suction machine is completed simply by connecting the suction machine.

As described above, the suction tube group can be attached and detached very easily and quickly. Further, the suction switching mechanism has the first and second
Since it is adjacent to the suction pipe of No. 1 and has excellent high-speed response, the chute device of the powder packaging machine of the present invention is suitable for high-speed and multi-product production.

[0017]

Embodiments will be described below with reference to the drawings. FIG. 1 is a vertical cross-sectional view of a device according to an embodiment of the present invention (a cross-sectional view taken along the line II of FIG. 2, FIG. 2 is a plan view showing the entire structure of the chute device, and right and left of FIG. 2). Both ends are first
The cross section along the line II-II of the figure is shown.

In FIG. 1, reference numeral 30 is an elevating shaft for elevating the chute device, and a beam 32 is attached to the lower end thereof. A chute body 34 is attached to the beam 32.
A base plate 36 for supporting the is attached. As shown in FIG. 2, a large number of chute bodies 34 are arranged in parallel. This many shoot body 3
The suction main pipe 38 extends in a direction parallel to the arrangement direction of No. 4. In the present embodiment, the suction main pipe 38 is inserted into the suction main pipe insertion hole 42 of the suction block 40, and between the inner peripheral surface of the suction main pipe insertion hole 42 and the outer peripheral surface of the suction main pipe 38. The bush 44 is interposed.

As shown in FIG. 2, a drive shaft 38a is fixed to one end side of the suction main pipe 38, and the suction main pipe 38 is provided around its axial center line through an appropriate power transmission mechanism such as a timing belt. It is reciprocally rotatable. 38b of FIG. 2 is a bearing device of the drive shaft 38a provided on the base 36.

The suction block 40 includes a first suction pipe 4
6 and a second suction pipe 48 are provided. The first suction pipe 46 is deeply inserted into the lower part of the chute body 34. The second suction pipe 48 is inserted into the upper portion of the chute body 34 so that the floating powder can be sucked and discharged from the entire area of the chute body 34.

These suction pipes 46 and 48 are respectively connected to the passage 5
It is communicated with the inner peripheral surface of the suction main pipe insertion hole 42 through 0 and 52. The bush 44 has these passages 50, 5
2, openings 54 and 56 are opened at positions corresponding to 2, and the suction main pipe 38 is provided with an opening 58 so that the openings 54 and 56 can be selectively communicated with the suction main pipe 38. .

Reference numeral 22 in FIG. 1 is the above-mentioned sealing device. Reference numeral 60 denotes a damper arranged at the lower end of the powder measuring device. The powder is temporarily stored in the damper 60, and when the damper 60 is opened, the powder is discharged from the chute main body 3
It is thrown into 4.

Reference numeral 62 in FIG. 2 shows a connecting portion between the suction main pipe 38 and the hose. Further, 64 is a screw handle for fixing the suction block 40 to the base 36, and by loosening the handle 64, the suction block 40 is disconnected from the base 36.

In the chute device of the powder packaging machine thus constructed, when the powder does not pass through the chute body 34, the suction main pipe 38 is rotated so that the openings 56 and 58 are aligned with each other, and the chute is actuated. Suction is performed from the upper part of the main body 34, and the floating powder in all areas in the chute main body 34 is suctioned and discharged.

When powder is put into the chute body 34 from the damper 60, the suction main pipe 38 is rotated to a position where the opening 58 does not match any of the openings 54 and 56, and suction is temporarily stopped. It Immediately after most of the powder drops from the lower end opening of the chute body 34, the openings 54, 5
The suction main pipe 38 is rotated so that 8 match, and suction is performed from the lower portion of the chute body 34. Then, most of the powder is sucked and discharged, which is falling with a time delay. For this reason, the powder is introduced only into the predetermined positions on the films 1 and 2 sent to the sealing device 22, and the powder is caught in the fusion-bonding portion 3a (see FIG. 3). Is reliably prevented.

When the powder is charged from the chute body 34 onto the films 1 and 2, the lifting shaft 30 is lowered.
The lower end of the chute main body 34 is lowered to the vicinity of the seam of the films 1 and 2.

After the powder is charged, the lifting shaft 30 is raised and the chute body 34 is retracted from the sealing device 22. Then, when the handle 64 is loosened to bring the suction block 40 and the base 36 into the uncoupled state and the hose is pulled out from the hose connecting portion 62, the suction block 40 can be taken out from the base 36. That is, all of the first and second suction pipes 46 and 48 and the suction main pipe 38 can be simultaneously separated from the chute device. Therefore, the suction block 40 can be removed extremely easily and quickly. On the contrary, the suction block 40 is installed on the base 36 so that the first and second suction pipes 46 and 48 can be inserted into the chute body 34, and the connection portion 62 can be provided.
Since the installation of the suction tube group consisting of the suction tubes 46 and 48 and the suction main tube 38 is completed only by connecting the hose to the suction tube group, the installation of the suction tube group can be performed very easily and quickly.

In the above-described embodiment, the first and second suction pipes 46 and 48 are selectively communicated with the suction main pipe 38 by rotating the suction main pipe 38. Obviously, a shutter mechanism may be provided.

[0029]

As described above, according to the chute device of the powder packaging machine of the present invention, the suction tube group can be attached and detached extremely easily and quickly. Therefore, it is possible to efficiently perform high-mix low-volume production.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of an apparatus according to an embodiment of the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a perspective view showing a conventional example.

FIG. 4 is a sectional view showing a conventional example.

[Explanation of symbols]

 30 Lifting shaft 32 Beam 34 Chute body 36 Base 38 Suction main pipe 46 First suction pipe 48 Second suction pipe

Claims (1)

(57) [Claims] 1. A chute device which is disposed below a powder measuring device and which guides the powder dropped from the measuring device between a pair of packaging films of a sealing device. A guide chute body, an elevating device for the chute body, and a first suction pipe which is detachably attached to the elevating device and which is inserted into the chute body and sucks air from the lower part, and is inserted into the chute body. A second suction pipe that inhales from the upper part thereof, a suction main pipe to which the first and second suction pipes are connected, and suction switching for connecting and disconnecting the communication between the first and second suction pipes and the suction main pipe. A chute device for a powder packaging machine, which comprises a mechanism.