JPH10119901A - Packing machine filling equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a filling device for smoothly and quickly filling an object to be packed in order to correspond to a packing machine having a high packing ability. SOLUTION: When a packaging bag gripped in a suspended state by a grip pair moves to a filling station in front and stops, a lower funnel is lowered by a first driving means to insert a drop port into the packaging bag. . At about the same time, the upper funnel is lowered by the second driving means until it coincides with the upper opening of the lower funnel, and then the weighed packaged object is discharged into the lower funnel. Next, the rotating plate is rotated by driving the motor device or the driving device having the index mechanism, and the lower funnel alone is inserted into the packaging bag, and along the rotation path of the grip pair supporting the packaging bag. It was configured to be moved to the rear filling station and to have its drop outlet escape from the packaging bag.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filling apparatus in a rotary type packaging machine for packing bags such as solids and granules such as foods and grains at a high speed.

[0002]

2. Description of the Related Art As a conventional rotary type packaging machine,
A large number of grip pairs are projected in the radial direction of the rotating body, and the supplied packaging bags are sequentially gripped in a suspended manner by each grip pair and intermittently moved to the opening station, filling station, top seal station, and other stations. ,
There is known a configuration in which a predetermined amount of items to be packaged is filled using one filling funnel within a stop time of one process, the bag mouth is sealed, and then the bag is discharged. As an example of a filling device of such a packaging machine, Japanese Utility Model Publication No. Sho 62-21521 describes,
A structure in which a filling funnel faces the inside of a packaging bag at one place and a material to be packaged is charged is described and known.

[0003]

By the way, in order to respond to the recent demand for speeding up of the packaging machine, the packaging capacity such as solids, granules and powders is about twice as large as the conventional packaging capacity. When about 40 to 100 times per minute of the packaging process is to be performed, in the filling device configured to perform the filling with the single filling funnel, the falling speed of the article to be packaged in the funnel cannot be changed. It is difficult to complete the dosing during a short downtime. However, at present, there is no filling device suitable for high-speed operation except for filling a small amount of items to be packaged. Therefore, there has been a demand for the development of a device that meets the demand.

[0004] It is an object of the present invention to provide a filling apparatus for smoothly and quickly filling an object to be packed in order to correspond to a packing machine having a high packing ability.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention is to move a rotating body provided with a large number of grip pairs in a radial direction by intermittently stopping a plurality of stations.
In a filling device of a rotary type packaging machine configured to fill a weighed packaged object into a packaging bag supported in a suspended manner by the grip pair, a rotation stand is provided on a machine stand. A rotating plate is fixedly provided on the longitudinal axis supported by the rotating plate, and the rotating plate is provided so as to intermittently rotate in synchronization with the rotating body by driving a motor device or a driving device having an index mechanism, Arrange a plurality of horizontal sliders that can be moved forward and backward in the radial direction,
A first driving means for vertically moving the lower funnel is attached to the slider, and a roller which is loosely fitted in an annular groove of a cam fixed to the stand is rotatably provided on the slider side. An upper funnel for loading the filled packaged object is provided so as to be vertically movable by second driving means, and at a front filling station, the lower funnel is lowered by the first driving means and inserted into the packaging bag; and The upper funnel is lowered by the second driving means to match the upper opening of the lower funnel, and then the packaged object is discharged into the lower funnel, and the lower funnel is driven by the motor device or a driving device having an index mechanism. After moving along the rotation path of the grip pair to the rear filling station, the lower funnel is moved to the first driving means at the rear filling station. Characterized by being configured to escape from a more elevated allowed to packaging bag.

[0006]

When the packaging bag gripped in a suspended manner by the grip pair moves to the front (position) filling station and stops there, the lower funnel is lowered by the first driving means, and the dropping port is lowered. Inserted into the packaging bag. Almost simultaneously, the single upper funnel is lowered by the second driving means until it coincides with the upper opening of the lower funnel, and then the weighed articles are discharged into the lower funnel. Then, when the rotating plate is rotated by the drive of the motor device or the drive device having the index mechanism, the lower funnel remains backward in the state of being inserted into the packaging bag along the rotation path of the grip pair supporting the packaging bag. Move to filling station at (position) and stop. Immediately after the upper funnel discharges the article to be packaged into the lower funnel, the upper funnel ascends to the original position by the second driving means and waits for the next filling command.

[0007] However, if there is an object to be packed stopped in the lower funnel, it is contained in the packaging bag within the time required to move from the front filling station to the rear filling station.
The lower funnel, which has been moved to the rear (position) filling station, is moved upward by the first driving means in order to escape the drop opening from the packaging bag. Such a series of filling operations are continuously performed so as to correspond to the sequentially supplied packaging bags.

As described above, this filling device is provided with a plurality of lower funnels corresponding to a single upper funnel, and the lower funnel containing the articles to be packed in the middle of filling is aligned with the rotating orbit of the packaging bag. With this structure, the filling operation can be performed more smoothly and the filling operation can be performed smoothly. Further, the filling speed for supporting a packaging machine having a high packaging ability could be improved.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view of a packaging machine provided with the filling device of the present invention, FIG. 2 is a side view of a main part of the filling device,
3 is a plan view of the same part, FIG. 4 is a side view of the upper part of FIG.
5 is a side view of the lower portion of FIG. 2, FIG. 6 is a plan view of the cam, FIG. 7 is an explanatory view showing a state in which the lower funnel is inserted into the packaging bag,
FIG. 8 is an explanatory diagram showing a filling state.

FIG. 1 shows a filling device F of the present invention provided in a rotary type packaging machine P. The packaging machine P
Intermittent driving means (not shown) for intermittently stopping and moving a large number of, here ten, pairs of grips g provided in the horizontal radial direction at a plurality of stations, intermittent driving means (not shown), bag supply means b, and weighing means (Not shown) and the like, and has a supply station i, an opening station ii, iii, a filling station iv, v, an idle station vi, vii, a top seal station vii of the packaging bag c.
i, discharge station ix, idle station x, etc.
It consists of 0 stations.

The filling device F is for charging and filling an article to be packaged such as food and cereals into a packaging bag c. 2 and 5, a hollow vertical axis 3 is rotatably supported by bearings 4 and 4 on a stand 2 erected on a machine base 1. A pulley 5 is fixed to a vertical axis 3 projecting downward from the stand 2, and a driving pulley 8 fixed to an output shaft 7 of a motor device 6 using a servomotor is connected to the pulley 5 by a timing belt 9. Reference numeral 10 denotes a rotating plate slightly above the upper flange 2a of the stand 2 and fixed to the longitudinal axis 3.
0 is the rotational body a by driving the motor device 6 based on a detection signal of an encoder (not shown) provided on the packaging machine P side.
The intermittent rotation movement control is provided in synchronization with the control. At the lower end of the vertical axis 3, the same number of pieces 11 as the lower funnel 20 described later are attached, the rotation stop position of each piece 11 is checked by the sensor 12, and when the stop position is deviated, the drive of the motor device 6 is stopped. Is provided. In this embodiment, the index angle of the rotating body a of the packaging machine P is 36 °.
On the other hand, the indexing angle of the rotating plate 10 of the filling device F is 60 °, and the rotating operation of the rotating plate 10 follows in synchronization with the rotating movement of the rotating body a based on the preset cam diagram data. Is controlled to be. Instead of the motor device 6, an output shaft of a drive device having a known index mechanism may be connected to the longitudinal axis 3 to control the rotation of the rotary plate 10 intermittently in the same manner as described above. .

As shown in FIGS. 3 and 4, a plurality of, here six, blocks 15 are mounted on the upper surface of the rotating plate 10, and a pair of guide bars 16 are fixed to each block 15 in a horizontal and radial direction. Then, the slider 17 is loosely fitted to the guide bar 16 so as to be able to advance and retreat. To each slider 17, a bracket 19 to which an air cylinder 18 with a guide as a first driving means is fixed is attached. Reference numeral 20 denotes a cylindrical lower funnel in which the drop port 21 is slightly narrower than the upper port 22.
0 is attached to the vertical rod 18a of the air cylinder 18, and the lower funnel 2
0 is provided so as to be movable in the vertical direction.

A roller 24 is provided on the lower surface of the air cylinder 18 (or the slider 17) so as to be freely rotatable in a vertical direction, and the roller 24 is freely inserted into an annular groove 26 of a cam 25 fixed to the upper flange 2a of the stand 2. Fit (FIG. 4). A part of the annular groove 26 is used to move the lower funnel 20 from the front filling station iv to the rear filling station v along the rotation path t of the packaging bag c as shown in FIG. , Are formed in the inverted arc groove 26a.

A holder 31 is fixed to a portion of the post 30 supported vertically movably in the vertical axis 3 so as to protrude downward from the vertical axis 3, and a release groove 32 formed at the tip of the holder 31 is provided. It is loosely fitted on the guide bar 33 erected on the stand 1.
Numeral 34 denotes a small-stroke air cylinder installed below the holder 31 for raising the post 30 when the mechanical valve 40 described later is operated. 35
Is a stopper for bringing the lower end of the post 30 into contact.

A support 36 fixed on the block 15
In order to independently control the guide-equipped air cylinders 18, the mechanical valves 40 corresponding to the respective air cylinders are mounted downward. 41 is post 30
The plate cam 41 is fixed to the operating rod 4 of the mechanical valve 40 by an air cylinder 34.
0a, so that the lower funnel 20 is moved downward.

At a position slightly above the mechanical valve 40 of the post 30, a guide shaft 43 is provided in parallel with the post 30.
Is fixed. 45 is bush 4
6 and 47, respectively, the post 30, the guide shaft 4
3 is a lifting base loosely fitted to 3. An air cylinder 48 as a second driving means is attached to the support plate 42, and the rod 48 a side of the cylinder 48 is attached to the lifting base 45.
An upper funnel 50 for receiving the packaged object weighed by a weighing device (not shown) and guiding it to the lower funnel 20 is fixed to the lifting base 45 via a bracket 51. The upper funnel 50 is located at only one location at the front filling station iv,
8 so as to be able to move up and down.

In the filling device F, the lower funnel 20 is lowered by the air cylinder 18 with a guide at the front filling station iv, and the dropping port 21 is inserted into the packaging bag c (FIG. 7). Almost simultaneously upper funnel 5
0 is lowered by the air cylinder 48 so that the lower funnel 2
0 to the lower funnel 20
(FIG. 8), and the lower funnel 20 is moved by the motor device 6 along the rotational path t of the grip pair g to the rear filling station v. The funnel 20 is configured to be lifted by the air cylinder 18 to escape from the packaging bag c.

The detailed operation of the filling apparatus F has been described in the section of the operation of the present invention and the respective constituent elements, and therefore the description thereof is omitted. The filling device has a plurality of lower funnels corresponding to a single upper funnel, and has a structure in which the lower funnel containing the articles to be packaged in the middle of filling is moved together with the rotation path of the packaging bag. By doing so, it has an excellent function that the filling time can be increased more and the filling operation can be performed smoothly and quickly.

[Brief description of the drawings]

FIG. 1 is a plan view of a packaging machine provided with a filling device of the present invention.

FIG. 2 is a side view of a main part of the filling device.

FIG. 3 is a plan view of the same part.

FIG. 4 is a side view of the upper part of FIG. 2;

FIG. 5 is a side view of the lower part of FIG. 2;

FIG. 6 is a plan view of a cam.

FIG. 7 is an explanatory view showing a state in which the lower funnel is inserted into a packaging bag.

FIG. 8 is an explanatory view showing a filling state.

[Explanation of symbols]

F → Filling device P → Packing machine c → Packaging bag g → Grip pair a → Rotating body iv → Filling station v → Backward filling station t → Rotating track 1 → Machine 2 → Stand 3 → Vertical axis 6 → Motor apparatus
10 → rotating plate 17 → slider 18 → first driving means (air cylinder with guide) 20 → lower funnel 22 → upper opening 24 → roller 25 →
Cam 48 → Second drive means (air cylinder) 50 → Upper funnel

Claims (1)

[Claims] 1. A rotating body provided with a large number of grip pairs in a radial direction is intermittently stopped and moved at each of a plurality of stations, and a packaged object weighed in a packaging bag suspended and supported by the grip pairs. In a filling device of a rotary type packaging machine configured to fill an object, a rotating plate is fixedly provided on a vertical axis rotatably supported on a stand erected on a machine stand, and the rotating plate is provided. A plurality of sliders provided so as to be intermittently rotated in synchronization with the rotating body by driving a motor device or a driving device having an index mechanism, and provided horizontally and reciprocally in a radial direction on the rotating plate. A first driving means for vertically moving the lower funnel is attached to the slider, and a roller loosely fitted in an annular groove of a cam fixed to the stand is provided on the slider side so as to be freely rotatable. At the filling station, an upper funnel for charging the weighed material to be packaged is provided so as to be vertically movable by a second driving means, and at the front filling station, the lower funnel is lowered by the first driving means to enter the packaging bag. After inserting and lowering the upper funnel by the second driving means so as to coincide with the upper opening of the lower funnel, the packaged object is discharged into the lower funnel, and the lower funnel is provided with the motor device or the index mechanism. The lower funnel is moved up by the first driving means to escape from the packaging bag at the rear filling station after moving the lower funnel along the rotation path of the grip pair by the driving device. A filling device for a packaging machine.