JPS591922Y2 - Band guide mechanism in semi-automatic packing machine - Google Patents

Description

[Detailed description of the invention] This invention relates to the improvement of packing machines, especially so-called semi-automatic packing machines that are not equipped with band guide arches, and enables efficient packing work regardless of the size of the items to be packed. The purpose of the present invention is to provide a semi-automatic packaging machine that does the following:

Conventionally, this kind of semi-automatic packing machine has a band 3 which is wound around a reel 2 placed on the main body 1 of the packing machine, provided in a groove 5 of a front plate 4 by an appropriate band feeding mechanism, as shown in FIG. 1A, for example. A predetermined length of the band is fed out from the band feeding section 6, and the band is manually wound around the object to be packaged on the work table 7. The tip is inserted, and then the band 3 is tightened, welded, and cut by the various mechanisms built into the main body 1, and then packed.

This configuration is not limited to the so-called horizontal semi-automatic packaging machine shown in the figure, but is also substantially the same in a vertical semi-automatic packaging machine in which the front plate 4 is horizontal.

In these conventional packing machines, when the object to be packed is large, the band insertion section 8 is blocked, making it impossible to insert the band.

Therefore, it is necessary to adjust the height of the work table 7 and expose the band insertion portion 8.

However, there is a limit to the height adjustment of the work table 7, and there are drawbacks such as the inability to pack large objects.

Furthermore, the band is edged by a certain amount with a timer, so
If the length of the band is insufficient to wrap around the object to be packaged, there are drawbacks such as the need to operate the band feeding mechanism again.

Next, we will introduce the present invention, which eliminates such conventional drawbacks, as a second product.
This will be explained in detail based on an embodiment shown in FIGS.

In FIGS. 2 and 3, reference numeral 10 denotes a packaging machine body, which incorporates a control section C that includes various known mechanisms required for packaging, such as a band bonding mechanism.

A groove 12 is located approximately in the center of the front plate 11 of the packaging machine main body 10.
A band insertion opening 13 is attached to the head of the main body at the upper end of this groove 5, and a band entry end 21 of a band auxiliary feeding mechanism 20, which will be described later, is exposed to the band insertion opening 13, and is attached to the main body. One end of a band guide path 40, which will be described later, faces the band outlet end 22 of the band auxiliary feeding mechanism 20, and the other end faces the band exit end 22 of the band auxiliary feeding mechanism 20, and the other end of the band guide path 40 faces the band exit end 22 of the band auxiliary feeding mechanism 20.
It is installed so that it faces the top end.

As shown in FIGS. 4 to 7, the band auxiliary feeding mechanism 20 has brackets l-24, 24 fixed to the side of a flap-shaped opening/closing piece 23.23 whose edge on the side of the band insertion opening 13 is bent. , by means of the brackets 24, 24 the idler roller 25.2
5 is rotatably supported, and the idler rollers 25, 2
5 is a notch 26.26 provided in the opening/closing piece 23.23.
The bandway 27 is attached by bending the tip of the bandway 27 and fixing it to the main body 10, and then inserting the belt through the notch 28 provided in the bandway 27. At 29, a drive roller 32 mounted on a shaft 31 having a pulley 30 interlocked with a drive mechanism is brought into contact with the idler rollers 25, 25 and faces inside the opening/closing piece 23.23.

This band auxiliary feeding mechanism 20 also includes a hinge 33 provided on the opening/closing piece 23, 23, like the band guide path 40 described later.
33 protruding downward from the bandway 27 34.3
4 and is biased by a coil spring 35 so that the opening/closing piece 23.23 is closed.
0 can be opened and closed freely.

Further, the band guide path is provided with an opening on one end side facing the band outlet end 22 of the band auxiliary feeding mechanism 4 described above.

Figure 4 shows an example of the mounting condition, and shows the machine frame 1.
The support piece 16 extending from the band guide path 40 is attached to the support piece 16 by screws 43 and nuts fixed to the bottom of the pandoway 41 of the band guide path 40, so that the opening on the other end side faces the slide table 14.

Also, as mentioned above, this band guide path also has flaps 42.4.
2 is configured to be openable and closable.

It is also possible to configure the band auxiliary feeding mechanism to be provided outside the main body and only the band guide path to be installed inside the main body.

In this case, the floating roller may be supported not by the flap but by another support member such as a plate as long as it can be opened and closed.

In addition, 18 is a work table, 19 is a leg part, and 36 is a support plate for the shaft 31.

The present invention consists of the above-mentioned configuration, and its operation and effects will be explained next.

As shown in Figure 3, the item W to be packaged is edged by a certain amount using a timer.
When the tip of the wound band B is inserted into the band insertion opening 13, the band B is held between the idle rollers 25, 25 which are rotating while slidingly contacting the drive roller 31, so that the band B is inserted into the band auxiliary feeding mechanism 20. Then, it passes through the band guide path 40 connected to the auxiliary feeding mechanism 20, and instantly reaches a band stop guide (not shown) on the back side of the slide table 14 of the control section C, and activates a known limit switch or the like. Then, the band tightening mechanism is activated immediately.

At the same time as this tightening, the band B is moved by the band auxiliary feeding mechanism 20.
and flaps 23.23 and 42. of the band guideway 40.
Push 42 open and pop out from here.

In this way, the band B is completely wrapped and tightened around the object W to be packed, and then the steps of band cutting and welding are performed to complete the packing.

Even when the drive roller 32 is configured to constantly rotate, the process of tightening the band after it reaches the control section C is instantaneously carried out under electrical control, so that the unwound band does not last long. Even if the band is too tight, the band will not become clogged within the band auxiliary feeding mechanism and the band guide path, and the band tightening will not be affected.

The rotation of the drive roller 32 is controlled by a limit switch (not shown) provided in the band insertion part 13, or by this limit switch, the band feeding mechanism of the control part C is operated again by band insertion, and the band tip is controlled. If the band is configured to start tightening when it reaches part C, even if the object to be packed is large and the already unrolled band is not enough to wrap it,
It is possible to omit the work of pressing a switch to operate the band feeding mechanism again.

As mentioned above, according to the band guide mechanism of the present invention, it is extremely easy to insert the tip of the band, and it is possible to pack objects of any size without adjusting the height of the work table. It is also possible to insert the band from below or from the horizontal direction and guide it to the control section C. Furthermore, the band guide path 40 can be detachably attached to the machine frame etc. for maintenance, inspection and maintenance of the control section C and the band. It has various excellent effects such as being able to set it up extremely easily and making it possible to perform packing operations in a semi-automatic packing machine that is simpler and faster than ever before2.

[Brief explanation of drawings]

Figure 1A is a perspective view showing a conventional semi-automatic packing machine;
A perspective view of a band insertion part, FIG. 2 is a perspective view showing a packaging machine equipped with an embodiment of the band guide mechanism of the present invention, and FIG. 3 is a schematic diagram of a packaging machine equipped with the band guide mechanism of the present invention. The vertical sectional view, FIGS. 4 and 5 are enlarged views of the band guide mechanism of the present invention. Fig. 6 is a sectional view taken along line A-A in Fig. 5, and Fig. 7 is a cross-sectional view taken along Fig. 6 B-
It is a sectional view taken along the B line. 10...Main body, 11...Front plate, 12
...Groove, 13...Band insertion slot, 2
0...Band auxiliary feeding mechanism, 23...
Opening/closing piece, 24...Bracket, 25...
・Idle roller, 26... Notch, 27...
... Bandway, 28 ... Notch, 29 ...
...Belt, 30...Pulley, 31...
...Axis, 32...Drive roller, 33...
...Hinge, 34...Protruding piece, 35...
・Coil spring, 40...Band guide path, 41・
...Bandway, 42...Flap,
B: Band, C: Control section, W: Item to be packed.

Claims (1)

[Scope of utility model registration request] A bandway is attached from the edge of the packing machine body, which accommodates a control unit comprising various mechanisms required for packaging, toward the control unit, and the outer surface of the bandway body is tightened with a band. An opening/closing piece is provided which is biased to be open at normal times by a band and closed during normal times, and a part of the outer periphery is exposed through a notch located near the edge of the main body of the bandway. A band auxiliary feeding mechanism is provided in which the opening/closing piece is provided with a floating roller that rotates in conjunction with the driving roller via a band, and a band auxiliary feeding mechanism is provided in the opening/closing piece at a position close to the end of the opening/closing piece in the direction of the control section. Attach a bandway having a length from to the control section, and attach to the bandway,
A band guide mechanism for a semi-automatic packaging machine, characterized in that a band guide path is provided with an opening/closing piece attached to the outer surface of the bandway main body to allow the bandway to be opened and closed freely.