JPS6216309A - Packer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a packaging device for wrapping objects to be packaged using packaging materials, and in particular, the main drive motors of the packaging device are provided separately, and each drive motor is electrically connected. The present invention relates to a packaging device organically coupled with a servo controller.

2. Description of the Related Art An overview of a conventional three-sided seal packaging device will be explained with reference to FIG. It is then supplied to the bag making machine 6. On the other hand, the object to be packaged 7 is pushed by a chain blade 10 attached to the chain 9 of the entrance conveyor 8 and fed into the bag making machine 6. The packaging film 1 made into a bag by the bag making machine 6 is passed through the film feed roller 1 with the object to be packaged 7 inside.
1 and a vertical sealing roller 12 that continuously seals the edges of the packaging film 1 in the longitudinal direction (vertical direction), while being pulled in the direction of the arrow.

Above the packaging film 1 is a bell) 13 and a brush 14.
A brush conveyor 15 is provided with a brush conveyor 15 fixed thereto. 1
6 is a lead conveyor. 17.18 is an end sealer which is attached to an end sealer shaft 19.20.As the end sealer shaft 19.20 rotates, the upper and lower end sealers 17.18 engage with each other, so that the packaging film 1 is The packaging film 1 is sealed in a direction perpendicular to the feeding direction (lateral direction), and the packaging film 1 is cut at a predetermined location by a cutter 21.22 built in the end sealer 17.18, thereby producing a product 23. An exit conveyor 24 transports the product 23 to the next process.

As shown in FIG. 4, this three-way seal packaging device uses a single drive motor 30 to operate a sprocket group 33, a chain group 34, and an intermediate shaft 35 in a complicated manner (the figures are omitted compared to the actual device). ), it took time to assemble and adjust the packaging equipment, making it impossible to shorten the construction period.

Further, when packaging objects 7 of different sizes, the speed at which the packaging film 1 is fed out must be adjusted, so a speed change device 31 is provided.
In order to change the gear ratio of the transmission device 31, the drive motor 30 must be operated, which wastes the packaging film l and makes adjustment work troublesome. moreover,
Even if you try to adjust by moving only part of the packaging machine,
Since a single drive motor 30 is used, there are problems in that it is difficult to perform adjustment work.

Problems to be Solved by the Invention The present invention is intended to solve these problems.In order to solve these problems, the present invention provides a packaging device in which independent drive motors are separately arranged in the main drive section, and electrically and organically connected. The purpose is to have

Means for Solving the Problem In order to achieve the above object, the packaging device of the present invention uses an inductor motor for the inlet conveyor, which is the core of the packaging device, and uses an encoder to control the rotation of the inductor motor for the inlet conveyor. The servo motor rotates based on the signal from the servo controller, and the encoder and generator send a signal to the servo controller so that the servo motor rotates in synchronization with the induction motor. is fed back and controlled by a servo controller, and the servo motor for the packaging material feed roller and the servo motor for the vertical sealer are electrically connected to the induction motor encoder for the input roller conveyor via the servo controller and F/F converter. connected.

Operation The present invention has the above-mentioned features, thereby shortening the time required for assembling and adjusting the packaging device, and making it possible to perform adjustments when replacing the packaged object in a short time.

Embodiment An embodiment of the present invention will be explained based on FIGS. 1 and 2. Reference numeral 42 denotes an induction motor for an inlet conveyor that rotates the inlet conveyor shaft 25.
By adjusting the setting position 1 and closing the start push button switch 52, the inverter 53 can rotate at a predetermined number of revolutions.

54 is a first encoder connected to the induction motor 42 for the input conveyor, and this pulse signal is given to the first servo controller 55. Based on the signal from the first servo controller 55, the end sealer servo motor 41 rotates. In the induction motor 42 for the input conveyor, the time for one rotation of the input conveyor shaft 25 must correspond to the time for the chain blade IO of the input conveyor 8 to move one pitch in a 1:1 ratio. The first servo controller 55 calculates signals from the first encoder 54 that detects the rotation speed of the end sealer servo motor 41, the second encoder 56 that detects the rotation speed of the end sealer servo motor 41, and the signal from the generator 57. The rotation speed is controlled.

71 is a digital input operation unit for adjusting the conversion ratio of the F/F converter 72. This F/F converter 72
corresponds to the transmission device 31 of a conventional packaging device, and by changing this conversion ratio, the length corresponding to one rotation of the end sealer shaft 19, that is, one force of the packaging film 1, can be changed appropriately. It will be possible. When packaging different lengths of packaging film 1 by one force at the same packaging speed (the rotational speed of the end sealer shaft 19 is the same), the delivery roller 2 of the packaging film 1 is delivered from the material reel 4. The rotation speed of the F/F converter 72 must be adjusted to a predetermined value, but the conversion ratio of the F/F converter 72 can be easily and precisely selected by simply setting the digital switch of the digital input operation section 71.

Conventionally, when making mechanical adjustments using the transmission 31, even if the handle position of the transmission 31 was displayed on a dial, it was not possible to match the detailed timing without actually driving due to slippage, etc. In contrast, the present invention allows easy and precise setting.

Second servo controller 58 for F/F transmission 72
It has a servo motor 43 for a film feed roller, a third servo controller 61, and a servo motor 44 for a vertical sealer, which are electrically connected.

A third encoder 59 and a generator 60 are mechanically connected to the feed roller servo motor 43 so that electrical signals are sent to the second servo controller 58. Similarly, a fourth enhancer 62 and a generator 63 are mechanically connected to the vertical sealer servo motor 44, and electrically connected to a third servo controller 61 to form a closed circuit.

Motor for lead conveyor 45. The brush conveyor motor 46 and the exit conveyor motor 47 do not require precise speed control in contrast to the aforementioned drive unit, so they do not require expensive servo controllers or servo motors.
An induction motor can be used instead. F/V converter 7
Electrical connection may be made using a 3° inverter 74.

In the present invention, by selecting the speed setting volume 51 for the packaging speed, the inverter 53 continues to rotate the input conveyor induction motor 42 at a predetermined rotation speed. This rotational speed is determined by inputting a pulse signal to the first servo controller 55 by the first enhancer 54 which is mechanically connected to the end sealer servo motor 41.
Start.

The rotational speed of this servo motor 41 is detected by a second encoder and generator 57, and a signal is sent to the first servo controller 55. The first servo controller 55 calculates these signals and controls the end sealer servo motor 41 . The speeds of the induction motor 42 for the input conveyor are controlled so that they are synchronized. On the other hand, the feed roller servo motor 43 and the vertical sealer servo motor 44 output a signal determined by the conversion ratio set by the F/F converter 72 using the value set by the digital input operation section 71. ．． Third controller 58
．． 61 for synchronous operation.

Effects of the Invention As described above, the present invention has been achieved by using a single drive motor and driving each drive part by a mechanical transmission mechanism. Instead of the cumbersome problem, separate and independent drive motors are installed, and each drive motor is electrically connected by a servo system, so the wrapping speed and film running speed can be adjusted by operating the speed adjustment volume or digital switch. This makes it easier and more precise, and since the drive motors are separate, each operation part can be adjusted individually, making it possible to test run the product in a shorter time. It has unique effects and is of great industrial value.

[Brief explanation of the drawing]

FIG. 1 is a side view showing an embodiment of the present invention, FIG. 2 is a block diagram of a servo system in the present invention, FIG. 3 is a side view showing a conventional packaging device, and FIG. 4 is a side view of a conventional packaging device. FIG. 3 is a perspective view showing a mechanical transmission mechanism.

Claims (1)

[Claims] A motor that drives the entrance conveyor that supplies the packaged item in a packaging device that has a sealer that uses packaging material to package the packaged item, an entrance conveyor that supplies the packaged item, and a feed roller that feeds the packaging material from a material reel. and a first encoder are connected, and the end sealer servo motor is electrically coupled via the first encoder and the first servo controller, and the end sealer servo motor is connected to a second encoder and a first encoder. A generator is connected, and the electrical signals of the second encoder and the generator are coupled to feed back to the first servo controller, and the first encoder is connected to the second servo controller via the F/F converter. A servo motor for a packaging material feeding roller, a third servo controller, and a servo motor for a vertical sealer are electrically coupled to each other, and a third encoder and a generator are connected to the servo motor for the feeding roller. The electrical signals of the third encoder and generator are coupled to feed back to the second servo controller, and the vertical sealer servo motor is connected to a fourth encoder and generator, and the electrical signals of the fourth encoder and generator are coupled to feed back to the second servo controller. A packaging apparatus, wherein the electrical signal is coupled to feed back to a third servo controller.