JP2003011928A - Filling and packaging apparatus and method for controlling the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a filling and packaging apparatus with good productivity and a method for controlling it. SOLUTION: The filling and packaging apparatus includes an image recognition means 9 for outputting a detection signal according to a packaged state of a packaging bag P, a determination means K2 for determining whether or not the bag P has been defectively packaged based on the means 9 an input means K1 for inputting apparatus stop conditions according to a frequency of occurrence of defective packaging in a manner that a configuration can be changed, and a control means K3 for controlling operation and stop of the apparatus depending on the determination results of the determination means K2 and the stop conditions.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filling and packaging apparatus for forming a packaging bag by heat-sealing a film which is continuously transferred while filling the contents with the content, and a control method thereof.

[0002]

2. Description of the Related Art Conventionally, as a filling and packaging apparatus for automatically forming a packaging bag by heat-sealing while continuously filling a film to be continuously transferred, packaging defects such as abnormal contents and defective sealing are automatically generated. Can be determined in, for example, as disclosed in JP-A-9-193916,
A camera having a solid-state image sensor for the packaging bag (image recognition means)
In some cases, the defective product is imaged by observing, and the thickness of the seal portion is detected by using a contact displacement sensor to determine a seal defect such as biting or wrinkles.

[0003] Furthermore, with respect to the packaging bags that are continuously produced, a non-defective product / defective product is manually or automatically selected based on the above determination result, and a non-defective packaging bag is shipped as a product without stopping the apparatus. There was a device.

[0004]

However, since the filling and packaging apparatus as described above continues to produce the packaging bag regardless of the determination result, when a defective product is frequently generated, a large amount of film or contents are produced. However, there is a problem that the drive power of the device, the production time, and the like are excessively consumed, and the productivity of the packaging bag produced by the filling and packaging device is reduced.

Therefore, the present invention has been made in view of the above problems, and an object thereof is to provide a filling and packaging apparatus with good productivity and a control method thereof.

[0006]

A filling and packaging apparatus according to the present invention, as described in claim 1, is a filling and packaging apparatus for forming a packaging bag by heat sealing while continuously filling a film to be continuously transferred with contents. A detection means for outputting a detection signal according to the packaging state of the packaging bag, a determination means for determining whether the packaging bag is defective in packaging based on the detection signal, and the packaging failure An input means for inputting the stop condition of the device according to the occurrence frequency so that the setting can be changed,
And a control unit for controlling the operation / stop of the device based on the determination result of the determination unit and the stop condition.

Further, as described in claim 2, in the filling and packaging apparatus according to claim 1, the detection means outputs a detection signal according to the sealing state of the packaging bag, and the determination means is It is characterized in that it is determined whether or not there is a sealing failure in the sealing portion of the packaging bag.

Further, according to the control method of the filling and packaging apparatus according to the present invention, as described in claim 3, in a packaging bag formed by filling and packaging the contents in a continuously transferred film, and then performing the filling packaging. Determine whether the packaging is defective,
It is characterized by determining whether or not the packaging failure detected by the determination has a predetermined occurrence frequency, and controlling the apparatus to stop according to the determination result.

Further, according to the control method of the filling and packaging apparatus according to the present invention, as described in claim 4, after the film which is continuously transferred is heat-sealed while the content is being filled, the film is sealed at the heat-sealing portion. It is determined whether or not there is a defect, it is determined whether or not the seal defect detected by the determination has a preset occurrence frequency, and control is performed to stop the device according to the determination result. It is characterized by.

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a filling and packaging apparatus of the present invention will be described below with reference to the accompanying drawings. Note that the following filling and packaging apparatus will be described by taking as an example a device that detects a sealing defect among packaging defects.

Referring to FIG. 1, the overall structure of the filling and packaging apparatus will be described. The filling and packaging apparatus is provided with a holding frame 1, and a film winding film obtained by winding a packaging film (film) 2 on a roll on the holding frame 1. 1A is provided so as to be removable and replaceable. Further, the filling and packaging apparatus is provided with a film guide mechanism 3 and a film folding mechanism 4 for hermetically packaging the contents W, and a vertical sealing mechanism 5, a horizontal sealing mechanism 6, a filling mechanism 7, a cutting mechanism 8, Image recognition means (detection means) 9 is provided.

The wrapping film 2 is made of a laminate of transparent nylon and low density polyethylene whose corresponding sealing portions are described later, and is provided by a vertical sealing mechanism 5 serving as a feeding mechanism of the wrapping film 2 from the roll-shaped film roll 1A. The wrapping film 2 is pulled out and led out to the film folding mechanism 4 via the film guiding mechanism 3, and the wrapping film 2 is folded in half along the longitudinal direction by the folding guide provided in the film folding mechanism 4.

The vertical sealing mechanism 5 includes a pair of vertical heat seal rolls 5A that are rotatably provided and face each other, and each of the folded folding film has a folded edge portion, an intermediate portion, and a folded edge portion. Part and intermediate part) are heat-sealed in the vertical direction while being fed out to form the vertical seal part 2A.

The lateral sealing mechanism 6 laterally heat seals the packaging film 2 by a pair of rotatably provided opposing lateral heat sealing rolls 6A to form a bottom portion to be the packaging bag P, that is, the lateral sealing portion 2B. To form.
The lateral seal portion 2B is formed in the light transmissive portion of the packaging film 2. In addition, the horizontal seal mechanism 6 includes
A rotation detector 6B for detecting the rotation position of the horizontal heat seal roll 6A is provided.

The filling mechanism 7 comprises a vertical sealing portion 2A and a horizontal sealing portion 2B, and a seasoning containing solid matter such as sesame seeds and meat pieces in the packaging film 2 formed into a continuous bottomed tubular shape. The contents W made of soup are filled. The mouth of the packaging film 2 containing the contents W is further fed and again heat-sealed in the lateral direction by the lateral sealing mechanism 6 to be in a sealed state.

The cutting mechanism 8 cuts and cuts the substantially central portion of the lateral seal portion 2B of the packaging film 2 which is continuously wrapped in the vertical direction by a pair of opposing blades (not shown) to cut the packaging bag P.
It is to separate each one.

The image recognizing means 9 is composed of a CCD camera having a solid-state image pickup device, and includes a horizontal sealing mechanism 6 to a cutting mechanism 8.
The packaging bag P that is transferred between the two is provided so that an image can be taken. In this case, a lighting device (not shown) is arranged behind the packaging bag P, and the image recognition means 9 images the shadow of the packaging bag P with respect to the illumination light emitted from the lighting device.

Next, the electrical structure of the filling and packaging apparatus of the present invention will be described with reference to FIG.

The input means K1 comprises a touch panel,
Various set values such as the timing of heat sealing in driving the filling and packaging apparatus and the temperatures of the seal rolls 5A and 6A can be set. Further, the input means K1 can set an abnormal stop condition (stop condition) according to the frequency of occurrence of defective packaging, and in this case, it is possible to set the calculated number of defective frequency and the frequency of defective occurrence.

The image recognizing means 9 outputs the imaged data to the determining means, which will be described later, using the imaged packaging bag P as imaged data.

The judging means K2 is composed of a microcomputer, and performs image processing at every predetermined time according to the detection signal from the rotation detecting means 6B to determine whether or not there is a defective product in the sealing portion of the packaging bag P. The determination is performed using a matching method, and the determination result is output to a control signal described later. In this case, the determination means K2 is also configured to serve as the control means.

The control means K3 is composed of a microcomputer, and has a ROM for storing a program for processing operations, which will be described later, and various set values, and an R for temporarily storing calculated values.
The control means 11 has an AM, a CPU for executing the program, and the like, and the control means 11 is an I / O interface for establishing an electrical connection with the input means K1, the determination means K2, and each means described later. Is to have. The control means K3 can also be used as control means for electrically controlling the filling and packaging apparatus.

The driving means K4 comprises a servomotor for driving the above-mentioned mechanisms, and is drive-controlled based on a control signal from the control means K3.

The notifying means K5 is composed of a buzzer and a lamp, and is for notifying the operator of the operating state of the filling and packaging apparatus based on the control signal from the control means K3.

The cutting mechanism 8 performs a cutting operation of the horizontal seal portion 2B by the blade body based on a control signal from the control means K3.

Next, the processing operation of the control means 11 will be described with reference to FIG.

The control means K3 numerically inputs the calculated number X of defect occurrence frequencies and the defect occurrence frequency Y set by the input means K1 (step S1).

Next, the control means K3 initializes the calculated number counter C and the defect occurrence frequency counter D (step S2), and then compares the calculated number X input in step S1 with the counter C (step S2). Step S3).

The control means K3, in step S3,
If the counter C is equal to or more than the calculated number X, a new determination result from the determination means K1 is input (step S4), and when it is determined that the product is a non-defective product, the packaging bag P to be the determination target A control signal is output to the cutting mechanism 8 so as to cut and cut the substantially central portion of the horizontal seal portion 2B (step S6), and if it is determined that the product is defective in the determination result, the cutting process as in step S6. The counter D is incremented without performing (step S
7). Therefore, the control means K3 does not perform the cutting process on the packaging bag P having a defective seal, so that the contents W can be prevented from leaking from the packaging bag P. Further, since the packaging bag P thus formed is in the continuous packaging state, the packaging bag P having a defective seal can be easily identified.

Next, the control means K3 increments the counter C (step S8) and then compares the defect occurrence frequency Y with the counter D (step S9). If the counter D is equal to or greater than the defect occurrence frequency Y, A control signal for urging the apparatus to stop is output to the driving means K4 (step S10), and a control signal for controlling the operator to notify that the apparatus has stopped is output to the informing means K5 (step S1).
1).

By repeating the processing operation of the control means K3, the filling is promptly performed based on the stop condition (the rate of occurrence of the defect occurrence frequency Y in the calculated number X) according to the defect occurrence frequency set by the input means K1. Since the packaging device can be stopped, it is possible to prevent a large amount of extra defective products from being produced, and the filling and packaging device has good productivity.

Further, since the input means K1 can set and change the stop condition according to the defect occurrence rate which varies depending on the packaging form for each product type, the stop condition with good productivity in consideration of various conditions such as cost and operating time. Can be set to operate the filling and packaging device.

Further, in step S11, the control means K3 uses the notification means K5 to notify the operator that the apparatus has stopped, so that the operator can promptly prompt the operator to perform a corresponding process such as inspection or adjustment of the apparatus. it can.

Although the embodiment of the present invention has been described by taking an example of detecting a seal defect by using the image recognition means, the present invention is not limited to this.
For example, an image of the packaging bag may be picked up using X-rays, or the thickness of the seal portion may be detected using a contact displacement sensor to determine a seal defect such as biting or wrinkling. Is also good.

Further, in the embodiment of the present invention, description has been made by taking as an example the case of determining a seal defect in the seal portion, but the present invention is not limited to this.
For example, the same effect as that of the above-described embodiment can be obtained as long as it is possible to determine whether the filling amount of the contents is excessive or insufficient and the packaging state such as the printing state such as the manufacturing date is defective.

In the embodiment of the present invention, the stop condition corresponding to the defect occurrence frequency is set by counting the occurrence ratio of the defect occurrence frequency Y in the calculated number X, but the present invention is not limited to this. The present invention is not limited to this, and for example, it may be set so that the device is stopped when a defective packaging is generated a predetermined number of times consecutively, or from the occurrence of a defective packaging to the next defective packaging. The defect occurrence frequency may be determined by counting the time and the number of determinations.

Further, in the embodiment of the present invention, the case where the frequency of occurrence of defective packaging is obtained by counting the determination result from the determination means K2 has been described, but the present invention is not limited to this. For example, a guide plate 10 that is provided at the subsequent stage of the cutting mechanism 8 and is driven by a rotary solenoid so as to swing right and left and determines the discharge direction of the packaging bag P.
Ejecting means 10 (A in FIG. 1) for carrying out a defective packaging bag P to the outside of the normal transport path based on the determination result of the determining means K2.
(1) is provided, the drive state of the guide plate 10A may be monitored to count the defective products normally discharged to the outside of the conveyance path to obtain the defective occurrence frequency.

[0037]

INDUSTRIAL APPLICABILITY The present invention can provide a filling and packaging apparatus with good productivity and a control method thereof.

[Brief description of drawings]

FIG. 1 is an overall plan view of an embodiment of the present invention.

FIG. 2 is a block diagram showing an electrical configuration of control means according to the embodiment of the present invention.

FIG. 3 is a flowchart showing a processing method of the control means according to the embodiment of the present invention.

[Explanation of symbols]

2 Packaging film (film) 9 Image recognition means (detection means) K1 input means K2 determination means K3 control means P packaging bag W contents

Claims (4)

[Claims] 1. A filling and packaging apparatus for forming a packaging bag by heat-sealing a film which is continuously transferred while filling the contents, with a detection means for outputting a detection signal according to the packaging state of the packaging bag. A determination means for determining whether or not the packaging bag is defective in packaging based on the detection signal, and an input means for inputting the stop condition of the device according to the frequency of occurrence of the packaging failure so that the setting can be changed. A filling and packaging apparatus comprising: a control unit that controls the operation / stop of the device based on the determination result of the determination unit and the stop condition. 2. The detecting means outputs a detection signal according to the sealing state of the packaging bag, and the determining means determines whether or not the sealing portion of the packaging bag is poorly sealed. The filling and packaging apparatus according to claim 1, which is characterized in that. 3. After filling and packaging the contents in a continuously transferred film, it is judged whether or not there is a packaging failure in the packaging bag formed by the packaging, and the packaging failure detected by the determination is A method for controlling a filling and packaging device, comprising: determining whether or not a predetermined occurrence frequency is set in advance and controlling the device to stop according to the determination result. 4. A film which is continuously transferred is heat-sealed while being filled with contents, and then it is judged whether or not there is a sealing failure at a heat-sealing portion of the film. A method for controlling a filling and packaging device, comprising: determining whether or not a predetermined occurrence frequency is set, and controlling the device to stop according to the determination result.