JPS5832092B2 - automatic packaging machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic packaging machine configured by combining a cylindrical packaging device and a rotary vacuum packaging device, and is capable of transferring bags from a straight cylindrical packaging mechanism to a rotary vacuum mechanism. The feature is that it can be carried out without any trouble.

When vacuum packaging food or the like packed in a bag, a step of packing the food or other item into the bag is required.

Therefore, in the past, various attempts have been made to pack articles into bags using a cylindrical packaging device and then directly supply the articles to a vacuum packaging device for vacuum packaging.

However, while cylindrical packaging machines have the ability to bag items efficiently, vacuum packaging equipment takes time to exhaust the air inside the vacuum box, so the bagging function is limited. The ability is extremely low compared to .

Therefore, most conventional machines of this kind, except for large ones, are of intermittent type with low efficiency.

The large size mentioned above is one in which a large number of vacuum boxes are circulated by a chain conveyor, and a cylindrical packaging device is installed in front of it, but both the front and rear devices are direct-acting types. This results in a very long structure, which has the drawback of requiring a large installation area.

This led to the idea of combining a turntable-type vacuum packaging machine with a small installation area and a cylindrical packaging machine, but since one is a rotating type and the other is a direct-acting type, and there is a twist in the direction of movement, both Accurate transfer of bags between devices is difficult.

In other words, in the cylindrical packaging machine, the bag is unsealed and transferred to the vacuum packaging machine, where it is deaerated and then sealed, so the bag is placed in the specified position on the sealing bed of the downstream machine. If the bag is not transferred, the seal on the bag may become incomplete or the seal may be misaligned, reducing the product's value.

In view of the above points, the present invention connects a cylindrical packaging device to a contact position of a turntable in a rotary vacuum packaging device, and at the same time connects a number of seat plates on which bags are placed to the turntable along a radial line. The seat plate is arranged so as to be slidable and rotatable on the line, and each of the seat plates is moved linearly by a guide rail at a connecting position of the cylindrical packaging apparatus.

Embodiments of the present invention will be described below based on the drawings.

As shown in FIG. 1, a rotary type vacuum packaging apparatus 1 is constructed by disposing eight vacuum boxes 3.about.3 on a turntable 2. As shown in FIG.

More specifically, as shown in FIG. 2, a circular column 5 is erected at the center of the stand 4, and the circular turntable 2 is rotatably supported around the column 5.
A pinion 9 provided on a reducer 8 is engaged with an annular gear 7 fixed to the lower surface, and the reducer 8 and the prime mover 10 are connected to the chino 1.
1, so that the turntable 2 is continuously rotated by the prime mover 10.

Further, as shown in FIG. 3, eight sleeves 12, 12, . At the same time, a wheel 14 provided at the lower end of each rod is connected to a base 15 on the lower surface of the table 4.
An annular cam 1 provided on the top concentrically with the turntable.
It is in contact with the upper surface of 6.

Furthermore, approximately the middle of an arm 18 is pivotally supported at the upper end of each rod 13 via a pin 17, and the arm 18 is
A top lid 19 of the vacuum box 3 is fixed to one end of the arm 18, while a pulley provided at the other end of the arm 18 is engaged with eight groove-shaped guides 21 formed on the sleeve 2a at the center of the turntable. .

Furthermore, the upper lid 19 is connected to a pressure control device (such as a vacuum pump) via a flexible tube 22 and a rotary valve 23.
(not shown as it is publicly known), and the upper lid 1
A heating sealing material 24 provided inside the upper lid 19 and an actuator 25 provided on the upper lid 19 are connected via a rod 26.

On the other hand, as shown in FIG. 3, eight seat plates 30, 30, . . . are disposed below the eight upper lids 19 shown in FIG.

For details, see the turntable 2 as shown in Figures 2 and 4.
Eight slide bases 31 are provided on the upper surface, and a slide block 33 is arranged in a dovetail-shaped guide 32 formed on the slide base 31.
The seat plate 30 is attached to the upper end of the shaft 34 that passes through the
is fixed horizontally.

The guide 32 is formed along a radial line formed from the center of the turntable 2, and includes a spring seat 35 provided at the inner end of the guide 32 and the slide block 3.
A tension spring 36 is interposed between the guide 3 and the guide 3.
A variable stopper 37 is provided at the outer end of the turntable 2 with a threaded rod, and a rod 38 protrudes from the slide block 33 in the centrifugal direction of the turntable, and a roller 39 is supported at the tip of the rod.

Further, the shaft 34 has a long hole 40 formed in the turntable 2.
A lever 41 is fixed to the lower surface of the coaxial shaft 34, and a roller 42 is rotatably supported at the tip of the lever.

On the other hand, as shown in FIG. 5, the cylindrical packaging device 44 is comprised of an article supply conveyor 45, a cylindrical mold 46, a sheath 947, an accelerated delivery conveyor 48, etc. from one end to the other, and the belt-shaped film F is transferred from the cylindrical mold to the cylindrical mold. While turning into a tube by 46,
The center sealer 4 wraps the article A fed by the conveyor 45 and wraps both side edges of the film F, which is overlapped in the shape of palms together.
After welding in step 9, the tube F' formed from the film is cut into a predetermined size in sheer 947, and at the same time, one end is welded to form bags F'' one after another, and each bag F'', F'' is transferred to an accelerated conveyor. As shown in FIG. 1, the end of the conveyor 48 is arranged tangentially on the seat plate 30 of the turntable 2.

The bag F" is supplied with one end sealed 50 and the other end 51 opened, and depending on the case, it is possible to apply a spot seal 52 to the opening.

As shown in FIGS. 2 to 4, the cylindrical packaging device 44
2 near the periphery of turntable 2 at the connection position with
Two parallel guide rails 53 and 54 are provided.

Both of these guide rails 53 and 54 form a straight line portion of a predetermined length at the connection position with the cylindrical packaging device 44. pressure contact, guide rail 5 on the other side
The roller 42 of the lever 41 is engaged in the groove 4 as shown in FIG.

The illustrated embodiment is constructed as described above, and its operation will be explained below.

There is nothing new in the structure of the cylindrical packaging device 44 shown in FIG. 5, and the new structure is in the vacuum packaging device.

That is, when the turntable 2 is rotated by the prime mover 10, the upper cover 19 and the seat plate 30 begin to rotate together with the turntable 2 while facing each other vertically.

On the other hand, a large wave is formed on the upper surface of the cam 16, so that the upper lid 19, which supports the load on the upper surface of the cam 160, is separated from the seat plate 30 near the upper area of the accelerated delivery conveyor 48, and in other areas. The vacuum box 3 is sealed by approaching the seat plate 30.

In addition, the slide block 33 in Figure 4 is the spring 3.
6, the slide block 33 normally holds the position pressed against the tip of the stopper 37 and rotates together with the turntable 2, but when the roller 39 receives resistance from the guide rail 53, the slide block 33 resists the force of the spring 36. Since the seat plate 30 is pushed down toward the center of the turntable, the seat plate 30 is moved linearly along the straight portion of the guide rail 53 in the upper area of the accelerated discharge conveyor 48.

Moreover, another guide rail 54 formed parallel to the guide rail 53 fixes the shaft 34 via the lever 41 regardless of changes in the rotation angle of the slide block 33, so that the seat plate 30 can be moved on a linear trajectory. The vehicle runs straight without swaying from side to side.

Then, along this linear trajectory, the bag F'' is supplied onto the seat plate 30 from the accelerated carry-out conveyor 48, and the opening portion of the bag F'' is placed on top of the pillow material 55 provided on the seat plate 30.

Further, after the top lid 19 is placed on the top lid 19, the air pressure inside the vacuum box 3 is lowered through the flexible tube 22, and the heating sealing material 24 is further pushed down by the actuator 25 to weld the opening of the bag F''. The bag is introduced, the top lid 19 is opened, and the operation of removing the bag from the seat plate 30 by appropriate means is repeated.

In FIG. 4, the slide block 33 is held in its position by a spring 36 and a stopper 37, but by making the guide rail 53 endless, it is not necessary to use the illustrated structure.

Further, the other guide rails 54 may be endless, but
Since the seat plate 30 does not rotate while the upper lid 19 is covered, the guide rail may be excluded from that section.

Furthermore, although the guide rails 53 and 54 are composed of two different guide rails in the drawings, these guide rails 53 and 54 are
Since they are parallel, it is easy to use a single guide rail for these guide rails.

As described above, the present invention provides slide blocks 33 for each of the numerous kites 32, 32... formed on the turntable 2 along a radial line from the center of the turntable 2.
while supporting each of the slide blocks 33...
A seat plate 30 is horizontally fixed to the upper end of each shaft 34, 34... which passes through the turntable 2 vertically, while a guide rail is installed along the vicinity of the periphery of the turntable 2, and the slide blocks 33, 34... are fixed horizontally. ...and each of the axes 34...
Each lever 41 at the lower end of the seat plate 30 is engaged with the guide rail, and a straight portion of a predetermined length is formed on the guide rail at the connection point with the cylindrical packaging device 44. , at the end of the accelerated discharge conveyor 48, without twisting in the direction of bag discharge.

For this reason, bags can be accurately transferred from a cylindrical packaging device that manufactures and transports bags in a straight line onto the seat plate 30 of a low-rise vacuum packaging machine, which has a small installation area, making it possible to avoid sealing errors. This has the effect of efficiently producing a series of packaged products without sealing or misalignment using a small packaging machine.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing an embodiment of the present invention, Fig. 2 is a sectional view taken along line I-II in the previous figure, Fig. 3 is a view taken along line I-1 in the previous figure, and Fig. 4 is a sectional view taken along line I-1 in the previous figure.
The figure is a view taken along line IV-IV in FIG. 2, and FIGS. 5 and 6 are partial explanatory views. 1... Vacuum packaging device, device, 2... Turntable, 3... Vacuum box, 13...
...Rod, 19...Top lid, 23...
Rokuri valve, 24... Heating sealing material, 30
... Seat plate, 31 ... Slide base,
32... Guide, 33... Slide block, 37... Variable stopper, 38...
...Rod, 41...Lever, 44...
- Cylindrical packaging device, 45... Article supply conveyor, 46... Cylindrical type, 48... Accelerated discharge conveyor, 53... Guide rail, 54・・・・・・
・Guide rail.

Claims (1)

[Claims] 1. A large number of guides 32, 32 formed on the turntable 2 along a radial line from the center of the turntable 2.
. . . each slide block 33 is displaceably supported, and shafts 34 and 34 are rotatably supported with respect to the slide blocks so as to vertically pass through each slide block 33 . A seat plate 30 is fixed to the upper end of each shaft, and a lever 41 is fixed to the lower end of each shaft, while an upper lid 19, which together with the seat plate 30 forms the vacuum box 3, is attached to the upper part of each seat plate 30. The top cover 1 is installed so as to move up and down in a predetermined cycle.
so that the end of the accelerated delivery conveyor 48 of the cylindrical packaging device 44 is located on the seat plate 30 in the upper movement area of 9.
The cylindrical packaging device 44 is arranged tangentially to the turntable 2, and a guide rail is installed along the vicinity of the periphery of the turntable 2, and is fixed to the slide block with respect to the guide rail. The tip of the lever is engaged with the guided element 38 such as a ronde, and a straight portion of a predetermined length is attached to the guide rail at the connection point with the cylindrical packaging device 44 for unloading of the accelerated unloading conveyor 48. An automatic packaging machine characterized by being formed parallel to the track.