JPH0462929B2 - - Google Patents

Description

Detailed Description of the Invention (Industrial Application Field) The present invention provides a method for removing the band when the tip of the band becomes defective during the operation of the packing machine and gets caught in the inner guide and cannot reach the end. The present invention relates to an automatic band feeding troubleshooting method in a packaging machine in which a defective leading end is cut and automatically removed from the machine.

(Prior art) Conventionally, in a packaging machine, if the tip of the band gets caught in the band guide and cannot reach the end, the band is pulled out, the operator cuts the tip, and the band is re-attached. I was trying to insert it into the guide.

In other words, all the work was done by hand.

(Problems to be Solved by the Invention) Conventionally, as described above, during operation of the packing machine, the band may get caught in the inner guide and may not reach the end. In this case, the operation of the packing machine must be temporarily stopped and repairs must be carried out manually by workers, which is extremely inconvenient and also takes a long time.

The present invention makes this process unmanned, and automatically cuts off the defective band ends inside the packaging machine, and discharges the cut defective band ends to the outside as they are.

In order to automatically discharge the cut ends to the outside, the starting end of the inner guide and the starting end of the discharging band guide are alternated, and the cut pieces are guided to the discharging band guide. This also applies when the end of the band is not reached and a new band is loaded.

(Means for Solving the Problems) For this purpose, the present invention provides an arch-type automatic packing machine in which a turn roller is disposed in front of a feed roller with respect to the direction in which the band is fed.
If the band in use does not reach the end while using the inner guide, pull the band back from inside the inner guide, feed it again, and if it still does not reach the end, pull back the band in use and replace the inner guide with the ejection band guide. The tip of the band is cut off by a cutting means, and after being discharged by a discharge band guide, the inner guide is returned to its original state and the band is fed into the inner guide.

(Function) Since the present invention has the above configuration, the band is fed during use by a feed roller and a corresponding feed lock roller, and the sensor for detecting completion of band feeding does not turn on within a certain period of time. At the same time, in order to pull back the band in use, a return roller and a corresponding return rocker roller pull back the band in use to a certain limit, and at the same time, operate a cylinder for forced opening of the inner guide to open the inner guide,
Alternating with this inner guide, the discharge band guide is raised by a discharge band guide raising cylinder.

Then, the cut band tip is discharged from the elevated discharge band guide via the band shooter, the inner guide is replaced with the discharge band guide again, and a new band with the tip cut off is re-sent to the inner guide. This is what I did.

(Example) This will be explained with reference to the drawings showing an apparatus implementing the method of the present invention.

1 is a band reel in use, 3 is a separate band reel stand, 2 is a new band reel, 4 is a band reel stand for the same reel 2, B is a band in use, and B' is a new band.

Reference numeral 5 denotes a sensor for detecting the rear end of the band, which detects the rear end of the band B in use when the band B in use of the band reel 1 in use becomes empty.

Reference numeral 6 denotes a chamber feed roller, and 7 a corresponding rocker roller, which stores the band B in the chamber 8 while both rollers 6 and 7 are in use.

Insert a new band B' from the entrance of chamber 8, and insert the tip to point d.

28 is a twist roller, 9 is a corresponding rocker roller, and this is cylinder 1.
As shown in Fig. 2, the band B' that rises due to the operation of
It is fed into a band guide 11 having a U-shaped band guiding groove 11'.

The band guide 11 forms a band guiding path,
(See Fig. 2B) When the Rotsuker roller 9 is raised by the operation of the cylinder 10, the twist roller 28 and the Rotsuker roller 9 create a new band.
Feed B' into the band guide 11.

13 is a feed roller, 14 is a corresponding feed rocker roller, and both rollers 13,
At step 14, band B or B' in chamber 8 is sent into the upper machine.

16 is a return roller, 17 is a return rocker roller, and 15 is a sensor for detecting the front and rear ends of the band. The return roller 16 is arranged ahead of the feed roller 13 with respect to the band feeding direction.

Reference numeral 18 designates an inner guide provided for causing both bands B and B' to revolve around the cargo on the table, 19 designates a seal anvil, and 20 designates a sensor for detecting completion of band feeding.

Reference numeral 21 denotes a discharge band guide, which is raised as shown by the dotted line in FIG. 1 by the operation of the discharge band guide raising cylinder 22.

Prior to this, the inner guide 18 is pushed open by the inner guide forced opening cylinder 25,
Instead of the inner guide 18, the discharging band guide 21 rises and introduces the band B in use from its opening, and the band discharging feed roller 23
and both rollers 23 and 24 of the Rotzker roller 24.
The same band is output to the band shooter 26.

The effect will be explained.

When the currently used band B runs out, the band reel 1 in use is moved to a separate band reel stand 3, and a new band reel is set on the band reel stand 4.

Insert the tip of the new band B' from the entrance of chamber 8 to point d.

When the rear end of the band B in use is detected by the band rear end detection sensor 5, the band B is stored in the chamber 8 by the chamber feed roller 6 and rocker roller 7.

The sensor 20 for detecting completion of band feeding is not turned on, but the sensor 15 for detecting the leading and trailing ends of the band is turned on.
This means that the amount of band B necessary for bundling is insufficient.

At this time, pull back band B so that the tip of band B is between points d and c.

And inner guide forced opening cylinder 2
5, the inner guide 18 is forcibly opened, and at the same time, the cylinder 2 for raising the discharge band guide is opened.
Step 2 raises the discharge band guide 21.

Then, band B is sent.

When the rear end of the band B comes out of the feed roller 13 and the feed rocker roller 14, the band discharge feed roller 23 and the rocker roller 2 are removed.
4, the band B in use is discharged from the band shooter 26 to the outside of the machine. Chamber internal band guide 1
1 descends and twist roller 2 of chamber 8
Feed the new band B' into the machine using 8 and Rotsuker roller 9.

Now the new band corresponds to the band B in use.
The loading work of B' is done automatically.

(Effects of the Invention) In the present invention, since the turn roller is placed ahead of the feed roller with respect to the band feeding direction, the return roller can be operated quickly and powerfully, and the band reel can be moved during use. When the band in use reaches its end, the end can be ejected from the ejection band guide that is raised alternately with the inner guide, and a new band from a new band reel can be fed into the machine in its place. Even if various problems occur, such as the tip of the band not reaching the inner guide's sensor for detecting band feeding completion, the problem can be automatically and easily resolved within the machine without having to pull the band back and perform external processing. can.

[Brief explanation of the drawing]

FIG. 1 is a front view of an apparatus for carrying out the method of the present invention;
Figure 2 is an explanatory diagram of the operation of the band guide. Figure A is a diagram with the band guide raised, Figure B is a diagram with it lowered, Figure 3 is an enlarged front view of the main parts, and Figure 4 is a diagram of the inner guide. FIG. 13...Feed roller, 14...Feed rocker roller, 16...Return roller,
17...Return rocker roller, 18...Inner guide, 20...Sensor for detecting completion of band feeding, 21...Band guide for ejection, 22...
Discharge band guide lifting cylinder, 25...
Inner guide forced opening cylinder, 26...
Band shooter, B...Band in use.

Claims (1)

[Claims] 1 In an arch-type automatic packing machine, the return roller is placed in front of the feed roller in the direction of band feeding, and when operating it, the band in use that is being fed into the inner guide is pulled in the middle. If you get stuck and can't reach the end,
Once the band is pulled back from the inner guide, the band is fed again, and if the band feeding completion detection sensor does not turn on again within a certain period of time, the band is pulled back again and the inner guide and discharge band guide are replaced. After the band tip is cut off by the cutting means, the cut band tip is discharged to the outside through the band shooter from the replaced discharge band guide, the discharge band guide is replaced with the inner guide again, and the tip is cut off. Automatic band feeding troubleshooting method for refeeding the ivy band during inner guiding.