JPH0752918A - Automatic powder/granulate packaging device - Google Patents

Abstract

PURPOSE:To lengthen the moving distance of the raised powder of filed granule for the laying thereof by a method wherein a rotating body and a rotary weighing disk are eccentrically moved toward a packaging material drawing side to bias an overlapping part toward the drawing side and the granule is filled in such a manner that the lower opening of an intermediate chute overlaps the upper opening of a main chute in the overlapping part. CONSTITUTION:A mounting disk 14 is rotated synchronously with a rotating body 20 to move a rotary weighing disk 12 toward the side of drawing strip-like film packaging material relative to the rotating body 20. On the drawing side is formed an overlapping region P of a rotating path 15T at the lower exit of an intermediate chute 15 and of an epicyclic path 25T on a main chute 25 mounted on the rotating body 20. The rotary weighing disk 12 and the rotating body 20 are rotated in such a timely manner that the lower exit of the intermediate chute 15 overlaps the upper entrance of the main chute 25 in the overlapping region P. Even if the production rate is enhanced by increasing the epicyclic speed, this method assures a sufficient filling time, thereby imparting a sufficient laying time to raised powder.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a continuous bottomed V-shaped gutter-shaped film wrapping material which is divided and sealed in the longitudinal direction to form compartment packaging bags, each of which is filled with a powder or granule and opened. The present invention relates to an automatic packaging machine for powders and granules that laterally seals and seals the edges.

[0002]

2. Description of the Related Art A conventional automatic packaging machine of this type is disclosed in, for example, Japanese Patent Application Laid-Open No. 49-103784. As shown in FIG. 5, this automatic packaging machine 100 forms a strip-shaped film packaging material F into a continuous bottomed V-shaped gutter shape and supplies it from a horizontal tangential direction, and in a longitudinal direction thereof, a split sealing device 106 divides and seals the same. Then, a partition bag F'is formed, the powdery particles are filled from the upper opening, and the opening is provided with the horizontal sealing device 1.
It will be sealed at 17.

A plurality of split seal devices 106 are arranged around the rotary member 104 at equal pitches. Rotating body 104
As shown in FIG. 6, a rotary weighing plate 103 for supplying the powdery or granular material, which rotates in synchronization with each other in an eccentric state, is provided above. The chute 1 is provided between the split seal devices 106, ...
, ... are provided around the rotating body 104 so as to be able to move up and down, and in the overlapping region R of the rotary motion, the powder particles are dropped from the weighing container 110 of the weighing plate 103 into the compartment bag F ′ via the chute 113. I am able to throw it in.

[0004]

However, in the above-mentioned conventional automatic packaging machine 100, after the packaging material F is drawn in to form partition bags with the division sealing devices 106, ... There is a useless moving area RA until filling, and therefore the powder calming area after filling is short. Therefore, the production rate was limited to 400 packets per minute. The reason why the overlap area R could not be moved to the retracting side was that when the rotary weighing board 103 was moved to the retracting side, it hits the chute 113 that is rising to insert the lower end into the V-shaped gutter-shaped packaging material. .

The present invention solves the above-mentioned problems of the prior art by increasing the settling movement distance of the powder powder that has risen up, and increasing the filling overlap area. It is an object of the present invention to provide an automatic packaging machine for powders and granules that can double the production speed at least by a factor of two.

An automatic packaging machine for powdery or granular material of the present invention which achieves the above object, comprises a rotating body which is rotationally driven in a horizontal state, and a band-shaped film packaging which is provided in a plurality of spaces around the rotating body and is folded in two. A split sealing device that splits and seals the material into partition bags in the longitudinal direction, a main chute provided on the rotating body so as to move up and down by cam control between adjacent ones of the split sealing devices, and above the rotating body. It is equipped with a rotary weighing board having a plurality of measuring basins, which are eccentrically formed so as to form an overlapping portion, and are driven to rotate in the same direction in a horizontal state at the same timing with each other to measure the powder or granular material of the packaging material. In the vicinity of the retracting side of the overlapping portion in the rotation direction, the strip-shaped film packaging material is folded in two in a continuous bottomed V-shaped gutter shape from the tangential direction to the peripheral portion of the rotating body, and is partitioned and sealed by the split sealing device. Quantity An automatic wrapping machine for powder and granules, which sequentially fills a compartment packaging bag through a main chute, and seals the upper edge of the opening with a horizontal sealing device, in which the rotating body and the rotary weighing board are pulled in. Side and eccentric the overlap part toward the retracted side, and an intermediate chute utilizing centrifugal force is provided below the measuring basin so that the lower end opening of the intermediate chute is the upper end of the main chute at the overlap part. The feature is that the filling is performed so as to overlap the opening.

Hereinafter, an automatic packaging machine for powdery or granular materials according to a typical embodiment of the present invention will be described in detail with reference to the accompanying drawings. Figure 1
3 is a vertical cross-sectional view of a main part of an automatic packing machine for powder and granules, FIG. 2 is a perspective view of an intermediate chute and a main chute in an overlapped state, FIG.
Is a plan view showing the rotation trajectories of the main chute and the intermediate chute,
FIG. 4 is an explanatory diagram showing the overlap area.

1 to 4, an automatic packaging machine 1 for powder and granular material has a rotary shaft 11 (center O ₁ ) rotatably supported by a machine base 2 via a bearing B by a driving means (not shown). It is adapted to be continuously rotated counterclockwise through the gear 17a. At the upper end of the rotary shaft 11, the measuring basins 13, ...
While fixing the rotary weighing plate 12 which is embedded in the peripheral portion at an equal pitch, an inverted frustoconical shape that is inclined outward to achieve a smooth drop by utilizing centrifugal force below each of the measuring basins 13 ,. The intermediate chutes 15, ... Are fixed via the mounting disk 14. The rotary weighing board 12 is supplied with powder particles of the material to be packaged from above, and is stationary during the rotation.
Each of the measuring vessels 13, ... Is filled with a fixed amount by A, and is held by the shutter plate 12B opened in the overlap region P with the main chute 25. Overlap area P
Is a scraping plate 12A (having a V shape in plan view)
This prevents powder and granules from entering. The intermediate chute 15 smoothly receives the powder particles that have naturally fallen from the weighing container 13 toward the outside due to the centrifugal force, and the main chute 2
The above-mentioned shape is formed so as to lead to No. 5. Mounting disk 14
Enables synchronous rotation with the rotating body 20 described below. The rotary weighing plate 12 is adapted to be inserted and removed via a clutch. When the rotary weighing plate 12 is stopped with the clutch off, the mounting disk 14 prevents the powder particles from dropping downwards and the weighing container 13 Receives a spill of powder from.

Below the mounting disk 14 of the intermediate chute,
In the eccentric state, a rotating body 20 (center O ₂ ) is supported by the machine base 2 so as to be rotationally driven in the same direction as the rotating shaft 11 by driving means and transmission means (not shown). In the eccentric state, the rotary weighing board 12 is biased to the side on which the strip-shaped film packaging material F is drawn with respect to the rotary body 20, and is mounted on the rotary locus 15T at the lower exit of the intermediate chute 15 and the rotary body 20. A region P where the main chute 25 overlaps the circumferential trajectory 25T is formed on the pull-in side. The weighing board 12 and the mounting disk 14 are raised upward so as not to hit the main chute 25 (raised position). Since the lower outlet of the intermediate chute 15 that utilizes centrifugal force is inclined outwards, the diameter of the orbit 15T is increased, and the small diameter lower outlet of the intermediate chute 15 and the large diameter of the main chute 25 are formed by the intermediate transfer. The overlap area P is enlarged by extending the overlapping distance of the diameter entrance.

In the overlap region P, the rotary weighing board 12 and the rotary body 20 are rotationally driven at a timing so that the lower outlet of the intermediate chute 15 overlaps the upper inlet of the main chute 25. Opening / closing split seal devices 23, ... Are provided at the peripheral portion of the rotating body 20 at a pitch corresponding to the width of the partition bag F ′, and are folded into two by the folding guide 9 to form a V-shaped film. The packaging material F is received at the retracted position IN in the open state and then closed to perform vertical divided sealing by electric heat to form partition bags, which are conveyed along with the rotation of the rotating body 20 and are tangential after filling with the granular material. It is designed to be opened in front of the sending position OUT for sending in the direction. The sealing device 23 is opened and closed by a cam rail 23A provided around the rotating body 20.

Each of the main chutes 25, ... Has a funnel shape and is provided with a spill preventing projection 25A outside the large-diameter inlet opening on the upper side, and the outlet opening on the lower side is well-fitted in the compartment bag. For this reason, it has an oval shape. Each main chute 25
Split seal devices 2 adjacent to each other on the outer side of the rotating body 20
It can be raised and lowered at an intermediate position between 3 and 23. That is,
The main chute 25 has a vertical through hole 2 in the peripheral portion of the rotating body 20.
A plate cam 27 vertically guides the shaft of 26 in 6a and is supported by a lever 26d which is horizontally projected from the upper end to the outside. The cam 27 lowers the main chute 25 from the upper position to the lower position of the B position at the A position in FIG. 3 so that the main chute 25 can rotate below the intermediate chute 15, and the lower position at the C position past the overlap region P. It is a ring-shaped cam with a height control that gradually raises it to the upper position.

The main chutes 25, ... Are lowered in the folding guide 9 having a V-shaped cross section as described above and can be moved linearly in a short but linear manner along the movement of the film packaging material F. The lever 26f is swung by the groove cam 26G at the D position so as to swing 26d in the circumferential direction, the descent is completed at the B position, and the lever 26f is returned to the original position at the E position. With the above configuration, since the overlap region P for filling is close to the drawing side of the film packaging material F and is large, the filling time can be sufficiently secured even if the peripheral speed is increased to increase the production speed. Moreover, it becomes possible to take a sufficient settling time for the powder that has risen up. By the way, the packing efficiency was improved from the conventional 400 packets / min to 800 packets / min. The film packaging material F, in which the powder particles are filled and the powder that has risen up is settled, is closed at its opening by the lateral sealing device 18.

[0013]

As described above, according to the automatic packaging machine for powdery or granular material of the present invention, the rotary weighing board is raised upward to eliminate the interference with the main chute, and the intermediate centrifugal force using the raised centrifugal force is used. A chute is provided to smoothly guide the fall of the powder and granules from the weighing box of the rotary weighing board to the main chute, and the overlap area for filling them is lengthened to ensure a sufficient filling time and to form a film in the overlap area. The settling time of the powder that has flowed up after being filled by being biased to the pull-in side of the packaging material can be sufficiently secured, and the production rate can be doubled even at a low rate.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view of a main part of an automatic packaging machine for powdery or granular material according to the present invention.

FIG. 2 is a perspective view of an intermediate chute and a main chute in an overlapped state.

FIG. 3 is a plan view showing circumferential trajectories of a main chute and an intermediate chute.

FIG. 4 is an explanatory diagram showing an overlap area.

FIG. 5 is a plan view of a main part of a conventional automatic packaging machine.

FIG. 6 is a plan view showing an overlap region of the same automatic packaging machine.

[Explanation of symbols]

 1 Automatic packing machine for powders and granules 12 Rotating weighing board 13 Distributor 14 Mounting disk 15 Intermediate chute 20 Rotating body 23 Dividing sealing device 25 Main chute F Belt-shaped film packaging material

Claims (2)

[Claims] 1. A rotary body which is rotationally driven in a horizontal state, and a split sealing device which divides and seals a plurality of band-shaped film packaging materials, which are spaced apart from each other in the peripheral portion of the rotary body and folded in half, into partition bags in the longitudinal direction. , A main chute provided on the rotating body so as to be moved up and down by cam control between adjacent ones of these divided sealing devices, and eccentric to form an overlapping portion above the rotating body, and the timing is adjusted. And a rotary weighing panel having a plurality of measuring basins, which are driven to rotate in the same direction in a horizontal state in the same direction to measure the powder or granular material of the material to be packaged, and the rotary body near the drawing-in side in the rotation direction of the overlap portion. Continuous striped film packaging material with a bottom V
It is folded in two in the shape of a gutter and supplied, and then compartmentalized and sealed by the above-mentioned dividing and sealing device, and is sequentially filled into the compartmentalizing bag from the weighing container through the main chute, and the upper edge of the opening is sealed by the horizontal sealing device. In an automatic packaging machine for powder and granules, the rotating body and the rotary weighing plate are eccentric to the pull-in side and the overlap portion is biased to the pull-in side, and an intermediate chute using centrifugal force is provided below the weighing container. An automatic packaging machine is provided so that the lower end opening of the intermediate chute is overlapped with the upper end opening of the main chute at the overlap portion to perform filling. 2. The intermediate chute has a large opening at the upper end and a small opening at the lower end, and has an inverted truncated cone shape inclined from the inner side to the outer side in order to smoothly drop by utilizing centrifugal force. Item 1. The automatic packaging machine according to item 1.