JPS595494B2 - Packing machine band loading device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention allows bands to be easily loaded in a packing machine, and then bands of sufficient length for packing are pooled, and even if the band falls out, the loading is automatically restored, and the arch This invention relates to a band loading device into which a band is fed.

Conventionally, in a packaging machine equipped with this kind of band loading device,
Predicting when the band inserted from the pool feed section will reach part of the feed roller via the band guide section, manually turn the pool feed motor switch to 0FF to stop pad feeding and remove the band guide from the band guide position. After that, the band was started to be loaded and the feed roller was operated to feed the band into the arch.

Therefore, if you remove the band guide before the band reaches part of the feed roller, the band will only accumulate in the boolean box and will not reach part of the feed roller, and until the band guide is removed after the band reaches part of the feed roller. If too much time passes, the band may become loose between the pool roller part and the band guide part. In addition, if the band comes off when the feed roller is reversed to tighten the band or when the tension arm is activated, it becomes impossible for the feed roller to feed the band into the arch, and the band is pulled out and re-seated. I had to reload it. This invention solves the above-mentioned drawbacks of conventional packaging machines, and its purpose is to provide a part of the boule roller that feeds the packaging band, a part of the feed roller that rotates forward and backward to feed and tighten the band, and a part of the feed roller that feeds the band and tightens it. In a band loading device for a packaging machine that is equipped with a band guide section that guides a part of the feed roller from the pool roller section, the part of the feed roller is configured to rotate forward in response to a guide position confirmation signal of the band guide when loading the band, and the band guide The section has a signal generator that confirms that the band guide is in the band guide position, so that the band is sent out sequentially to the pool roller section, the band guide section, and the feed roller section, and when the band reaches the feed roller section. To,
In order to start band pooling, a signal is issued to remove the band guide from the band guide position in preparation for packaging, and the pool roller unit that feeds the packaging band and the pool roller unit that sends out the band and tightens it forward and reverse. In a band loading device for a packaging machine that includes a part of the feed roller and a band guide part that guides the band from the pool roller part to the part of the feed roller, a part of the pre-feed roller is provided between the band guide part and the part of the feed roller. A part of the pre-feed roller has a mechanism that feeds the band only at a predetermined time based on a signal indicating the absence of a band at a part of the feed roller, and a part of the feed roller is configured to feed the band correctly by a band guide guide position confirmation signal when loading the band. The band guide part has a rotating configuration, and the band guide part has a signal generator that confirms that the band guide is in the band guide position, so that the band can be moved between the pool roller part, the band guide part, a part of the pre-feed roller, and the feed roller. When the band reaches a part of the feed roller, in order to start band pooling, the band feeding function of the brief feed roller is stopped and at the same time, a signal is sent to remove the band guide from the band guide position. Even if the band comes off when the feed roller is reversed to tighten the band during packaging or when the tension arm is activated, the brief feed roller immediately sends the band back to the feed roller and automatically restores loading. Only the forward rotation of the feed roller is operated for a certain period of time to feed the band into the arch in preparation for packaging.

The present invention will be described below based on the embodiment shown in the drawings. B is a packing band that is manually inserted from a pool shooter (not shown).

1 is a pair of pool rollers, and has a lever 8 that detects whether or not the band pool is sufficient based on the weight of the pooled band, and a weight 8' that connects with the lever 8 when the pool amount is not a predetermined amount. The roller is configured to press the band and send out the band B.

Reference numeral 2 denotes a band guide, which can be set at the band guide position by moving in the back direction perpendicular to the plane of the paper in Fig. 1 (to the right in Fig. 2), and allows the band to pass from the pool roller 1 to the pre-feed roller 14. Alternatively, an operating lever 3 is provided so that the feed roller 5 can be guided directly.

S1 is a signal generator that detects whether the band guide is in the band guide position or in the removal position. One side of the band guide 2 is opened so that the band can be removed from the guide path when band pooling is started by movement of the band guide 2. Reference numeral 4 includes a prefeed roller pressing disconnector L2 that applies a pressing force to the prefeed roller 1 to prefeed the band only at a predetermined time with the prefeed roller 1 placed on the upper part of the band guide section. It forms part of the pre-feed roller.

This pre-feed roller press disconnector is designed to generate a pressing force by a band absence signal coming from a part of the feed roller, and to release the pressing force by a band presence signal during band pooling after band loading. ing. Note that L2 may be configured to release the pressing force even when there is no band presence signal after a certain period of time has elapsed using a timer. A band clamping device L3 is disposed above the pre-feed roller, and is activated by a band absence signal when the band comes off from a portion of the feed roller. Next 5
is the feed roller 1, which is placed at the final part of the band passage path and feeds out the band by normal rotation (the direction of rotation in which the band is sent out is normal rotation), and which rotates in reverse when the band is tightened.
It is a pair of rollers. This feed roller 1 has a signal generator S2 for confirming the existence of a band, and constitutes a part of the feed roller. When loading the band, the feed roller 5 rotates in the normal direction based on the band absence signal from the signal generator S2 at a part of the feed roller and the signal from the signal generator S1 indicating that the band guide is at the band guide position. Create a configuration for sending out. L1 is a solenoid for removing and removing the band guide 2 from the band guide position in response to a band presence signal from a signal generator S2 of a part of the feed roller. 6 is a tension arm that tightens the band.

Next, the operation of the above configuration will be explained.

Before inserting the band into the pool shooter, first turn the operating lever 3 to ON and set the band guide 2 to the band guide position. The signal generator S1 then issues a signal indicating that the band guide is in the band guide position. At this point, the band has not been inserted yet, so the signal generator S
2 outputs a band non-existence signal. The feed roller 5 receives a band absence signal from the signal generator S2 and a band guide position set signal of the band guide from the signal generator S1, and rotates normally to supply the band. A pressing force is applied by the band absence signal from S2, and the band becomes ready to be fed. On the other hand, since the inside of the band pool box is empty, the boule roller 1 is in a band feeding state by the action of the detection lever 8. When band/B is inserted into the boule shooter under such conditions, band B will be connected to pool roller 1,
It reaches the feed roller 15 via the band guide 2 and pre-feed roller 14, and is prepared for the band pool. At this point, the signal generator S2 issues a band presence signal, and this signal releases the pressing force on the prefeed roller 1. At the same time, this signal activates the solenoid L1, causing the band guide 2 to move perpendicular to the plane of the paper in FIG. The band B moves forward (leftward in FIG. 2) and comes out of the band guide 2.
Furthermore, after the signal S2 is generated, the band rotates around the imand guide arch on the main body of the packing machine by the feed roller which rotates in the normal direction for a certain period of time to prepare for packing. Further, when the band guide is removed and removed, the boule roller 1 is rotated by the signal S1 and the band B is fed. Since Band B has already reached the feed roller 15 as described above, Band B begins to be pooled in the Band Boolean box 7 as shown by the dashed line in FIG. That is, if the solenoid L1 is actuated by the band presence signal from the signal generator S2 to remove the band guide 2 from the band guide position, the band is loaded up to the feed roller 15 and the band pool is automatically removed. will be started. When bands of sufficient length for packaging are pooled in the band pool box 7, the detection lever 8 operates to release the pressing force of the pool roller 1, and the bands are no longer supplied even though the pool roller is rotating. This indicates that the bands are sufficiently pooled and ready to begin packaging. In this state, when a switch (not shown) to start packing is pressed, the feed roller 5 is reversed, and one packing cycle of band tightening, cutting, welding, and band feeding starts. Note that it would be more efficient if the operation of removing and removing the band guide 2 from the band guide position is performed automatically. Next, when the feed roller 15 is reversed in the band tightening process of the packing operation, the band may come off from the feed roller 15.

In this case, the band clamping device L3 is activated by the band absence signal from the signal generator S2 to clamp the band before band omission reaches the brief feed roller 14, and then the pre-feed press disconnector L2 is activated to prevent the pre-feed from occurring. A pressing force is applied to the roller 14 and the band is again fed to the feed roller 15. Of course, at this time, the clamping force of the clamping device L3 has been released. Since the present invention is constructed as described above, it is possible to automatically load bands from outside the packaging machine main body with one touch, so it is very effective for packaging machines connected to a conveyor line or the like.

In addition, when loading a band, a signal is issued to indicate that the band has reached the feed roller, and at the same time the band guide can be removed from the band guide position, so band pooling can be started efficiently without the band becoming clogged or coming off. It is possible to perform band pooling extremely efficiently. When the band comes off, the pre-feed roller 1 automatically supplies the band to the feed roller 1, so it is possible to automatically restore the band and prepare for packaging without having to reload the band from the beginning. Packing efficiency is greatly improved.

[Brief explanation of the drawing]

FIG. 1 is a schematic view of a band loading device for an automatic packaging machine according to the present invention, and FIG. 2 is a side view showing only the band guide section of FIG. 1. B...Band, 1...Boule roller 1, 2...Band guide, 3...Operation lever, 4...Pre-feed Roller 1, 5...
...Feed roller 1, 6...Tension arm, 7...Band pool box, 8...
...detection lever, S1 ...signal generator, S2
... Signal generator, L1 ... Solenoid, L2 ... Pre-feed roller press disconnector,
L3... Band clamper.

Claims (1)

[Scope of Claims] 1. A packaging comprising a pool roller section that feeds a packing band, a feed roller section that rotates forward and backward to feed and tighten the band, and a band guide section that guides the band from the pool roller section to the feed roller section. In the band loading device of the machine, the feed roller section is configured to rotate in the forward direction in response to a band guide guide position confirmation signal during band loading, and the band guide section has a signal generator that confirms that the band guide is at the band guide position. What is claimed is: 1. A band loading device comprising: a band guide of the band guide section is configured to be removed from a band guide position in response to a band presence signal from a feed roller section. 2. A band for a packing machine that is equipped with a pool roller section that feeds the packing band, a feed roller section that moves forward and backward to send the band to the object to be packed and tighten it, and a band guide section that guides the band from the pool roller section to the feed roller section. The loading device has a pre-feed roller section between the band guide section and the feed roller section, and the pre-feed roller section feeds the band only at predetermined times based on a signal indicating the presence of the band at the feed roller section. The feed roller part is configured to rotate forward in response to a guide position confirmation signal of the band guide when loading the band, and the band guide part has a signal generator that confirms that the band guide is in the band guide position. A band loading device characterized in that the band guide of the band guide section is configured to be removed from the band guide position in response to a band presence signal from the feed roller section.