JP2003321015A - Filling packaging machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a filling packaging machine capable of preventing a film from being dislocated from a proper lateral sealing position of a film and a proper cutting position of a packaged item even when a film roll having a joint is used and capable of controlling wasteful usage of the film. <P>SOLUTION: The filling packaging machine A is equipped with a control means which controls a lateral seal mechanism 6 so that it laterally seals the film at a predetermined interval based on a first signal when the first signal dispatched from a mark detector B1 by accompanying the detection of a register mark (regi-mark) R is input and which controls the lateral seal mechanism 6 based on a produced base signal having approximately same period and phase as those of the first detected signal input before an input of a second signal after the second detected signal dispatched from a joint detecting means B2 by accompanying the detection of the joint S. <P>COPYRIGHT: (C)2004,JPO

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 machine for making a film wound into a roll and filling a packaging bag with an object to be filled such as liquid, powder or viscous substance. Is.

[0002]

2. Description of the Related Art As a filling and packaging machine for filling an object to be filled such as liquid, powder or viscous substance, for example, Japanese Patent Application Laid-Open No. 1-1 is known.
It is disclosed in Japanese Patent No. 53410, Japanese Unexamined Patent Application Publication No. 2-4626, Japanese Unexamined Patent Application Publication No. 2-332929, and the like. Such a filling and packaging machine has a machine base, and a pair of original fabrics is provided on the side of the machine base. A shaft is provided, and an original film wound with a film around the original shaft is detachably and replaceably held, and a film guide section and a film folding section are provided on the upper part of the machine base, and a front surface of the machine base is provided. A vertical seal mechanism, a horizontal seal mechanism, and a cutter mechanism are provided from the upper side to the film, and the film drawn from the original fabric is sent out by the vertical seal mechanism, and is led out to the film folding section via the film guide section, and the film is returned. The film is folded in two in the longitudinal direction by the guide provided at the folding portion, and the folding end portions of the film are overlapped with each other by a pair of vertical heat seal rolls facing the vertical sealing mechanism. It is sealed and sent out, the film is formed into a tubular shape by this vertical seal, and the film is laterally horizontally sealed by a pair of horizontal heat seal rolls facing each other of the horizontal seal mechanism, and the bottom is formed by this horizontal seal. The filling nozzle of the filling mechanism fills an object to be filled, such as food, into the film formed in the shape of a bottomed cylinder by means of the filling mechanism, and the film is sent again to the bag of the film by the horizontal heat sealing roll of the horizontal sealing mechanism. It is known that a package is obtained by laterally sealing the mouth side to seal the filling object and then cutting the laterally sealed portion with the rotary cutter mechanism.

In the filling and packaging machine, the film on which a register mark (hereinafter, referred to as a registration mark) is printed is used, and a horizontal sealing or cutting timing of the package is taken according to a position where the registration mark is formed. There is. The applicant of the present application has proposed a filling and packaging machine disclosed in Japanese Patent Laid-Open No. 9-254910 as a filling and packaging machine for accurately and vertically sealing such a package. Such a filling and packaging machine includes mark detection means for detecting a registration mark printed on the film, inputs a detection signal emitted from the mark detection means to the control means, and the cycle of the detection signal is controlled by the control means. The drive motor of the vertical seal mechanism, which is the film feeding mechanism, is adjusted for acceleration and deceleration, and the registration mark detection signal is adjusted so that it has a constant cycle determined by the production conditions such as the registration mark formation interval and the film feed speed. As a reference, after a predetermined time has elapsed, by rotating each of the driving motors of the lateral sealing mechanism and the cutter mechanism to respectively perform lateral sealing of the film or cutting of the package, a constant film feeding speed set arbitrarily. And the film is sent out with
It is possible to laterally seal and cut at regular intervals.

[0004]

On the other hand, the film stock used in the filling and packaging machine has a manufacturing method in which a plurality of films are connected to each other by a tape or the like to obtain one long film stock. For this reason, there is a portion where the films are connected to each other by a connecting member such as a tape (hereinafter, referred to as a joint portion). Further, since the films are connected to each other, a portion where the registration mark forming interval is greatly different from other portions is formed before and after the joint portion. Therefore, when the film stock having the seam portion is used, the mark detecting unit erroneously recognizes and detects the seam portion as the registration mark, or the interval between the registration marks is There is a problem in that a position greatly different from the others is detected, and a deviation occurs from a predetermined position of the film at a lateral sealing position of the film or a cutting position of the packaging body. Further, as a method of solving this problem, a seam detecting means for detecting the seam portion is provided, and when the seam portion is detected, a method of stopping the delivery of the film by the control means is considered, When stopping the feeding of the film, it is impossible to perform filling and horizontal sealing until the film feeding speed reaches a predetermined speed after the feeding of the film is restarted, and thus the film is wastefully used. There was a problem that it would end up.

In view of the above-mentioned problems, the present invention provides a horizontal film sealing position of the film and a proper cutting position of the film from the proper position of the film even when the film original film having the seam portion of the film is used. It is intended to provide a filling and packaging machine capable of preventing the deviation of the film and suppressing the wasteful use of the film.

[0006]

In order to solve the above problems, the present invention provides a lateral sealing mechanism for laterally sealing a tubular film at a predetermined interval to form a continuous package.
A mark detecting means for detecting a register mark formed on the film, a seam detecting means for detecting a seam portion of the film, and a first detection signal emitted from the mark detecting means in accordance with the detection of the register mark. The second seal signal is input, and the lateral seal mechanism is laterally sealed based on the first detection signal so as to laterally seal the film at a predetermined interval. After the input of the detection signal of, the second detection signal based on a reference signal generated in substantially the same period and phase as the period and phase of the first detection signal input before inputting And a control means for performing lateral seal control.

Further, a lateral sealing mechanism for laterally sealing a tubular film at a predetermined interval to form a continuous package, a register mark formed on the film, and a joint portion of the film are detected. A detection means and a detection signal emitted from the detection means are input to determine whether the detection signal is the first detection signal detecting the register mark or the second detection signal detecting the joint portion. Then, when it is determined that the input detection signal is the first detection signal, the lateral sealing mechanism laterally seals the film so as to laterally seal the film at a predetermined interval based on the first detection signal. Together with, after determining that the input detection signal is the second detection signal,
Control means for performing the lateral seal control based on a reference signal generated in substantially the same period and phase as the period and phase of the first detection signal input before inputting the second detection signal. , Is provided.

Further, the control means switches the lateral seal control based on the reference signal to the lateral seal control based on the first detection signal after determining that the joint portion has passed through the lateral seal mechanism. It is characterized by

Further, a filling mechanism for filling the tubular film with an object to be filled is provided, and the control means inputs the first detection signal and predetermined based on the first detection signal. The filling mechanism controls the filling so as to fill the object to be filled at intervals, and after the second detection signal is input, the filling control is performed based on the reference signal.

Further, the control means switches the filling control based on the reference signal to the filling control based on the first detection signal after determining that the joint portion has passed through the filling mechanism. And

Further, the package includes a notch forming mechanism for forming an opening notch, and the control means inputs the first detection signal and operates the notch forming mechanism based on the first detection signal. The notch formation control is performed, and after the second detection signal is input, the notch formation control is performed based on the reference signal.

Further, the control means switches the notch formation control based on the reference signal to the notch formation control based on the first detection signal after determining that the joint portion has passed through the notch formation mechanism. It is characterized by

Further, a cutter mechanism for cutting the wrapping body into individual wrapping bodies is provided, and the control means inputs the first detection signal and cuts the cutter mechanism based on the first detection signal. The control is performed, and after the second detection signal is input, the disconnection control is performed based on the reference signal.

Further, the control means switches the cutting control based on the reference signal to the cutting control based on the first detection signal after determining that the joint portion has passed through the cutter mechanism. And

Further, a distribution mechanism for distributing the packages is provided, and the control means determines that the package including the joint portion has reached the distribution mechanism.
It is characterized in that the distribution mechanism controls distribution so that a package including the joint portion is separated from other packages.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below based on the embodiments shown in the accompanying drawings.

Referring to FIG. 1, the overall structure of the filling and packaging machine A will be described. A holding mechanism 1, a film guiding mechanism 2, a braking mechanism 3, a film folding mechanism 4, and a vertical sealing mechanism 5 are provided.
A horizontal sealing mechanism 6, a filling mechanism 7, and a notch mechanism 8
The cutter mechanism 9 and the sorting mechanism 10 are provided on a machine base (not shown).

The holding mechanism 1 is provided with a shaft portion 1b which detachably and replaceably supports a film original fabric 1a in which a film F made of a laminated body of nylon and low density polyethylene is wound in a roll shape. Is. Further, on the film F, registration marks R for adjusting the acceleration / deceleration of the vertical seal mechanism 5, adjusting the horizontal seal position of the horizontal seal mechanism 6 and the cut position of the cutter mechanism 8 are printed at equal intervals.

The film guiding mechanism 2 is provided with a plurality of rotatable rollers for transferring and guiding the film F drawn from the film original film to the film folding mechanism 4. In the vicinity of the film guide mechanism 2, there is provided mark detection means B1 including a photoelectric sensor capable of detecting the registration mark R printed on the transferred film F and the joint portion S where the film F is connected. Has been done.

The braking mechanism 3 includes a pair of rollers 3a rotatably provided so as to sandwich the film F drawn from the film original fabric 1a and guided by the film guiding mechanism 2, and an electromagnetic force for braking the rotation of the rollers 3a. It is composed of a powder brake or the like, and applies a tension to the film F by braking the transfer of the film F. Further, near the braking mechanism 3, a joint detecting means B2 including a photoelectric sensor capable of detecting a joint portion S which is a connection portion of the film F is arranged.

The film folding mechanism 4 has a folding guide 4a whose position can be adjusted according to the packaging form of each product.
The film F drawn from the film guide mechanism 2 is folded in half along the longitudinal direction.

The vertical seal mechanism 5 is rotatably provided with a drive means M1 composed of a servomotor as a drive source, and is provided with a seal body 5b provided on a pair of vertical heat seal rolls 5a opposed to each other with the film F interposed therebetween. F
While feeding the film, both ends of the folded film F are vertically sealed in the vertical direction to form a vertical seal portion F1. An electric heater (not shown) for heating the seal body 5b to an appropriate temperature for heat sealing is built in each of the vertical heat seal rolls 5a. The vertical seal mechanism 5 is also used as a feeding mechanism for feeding the film F.

The horizontal seal mechanism 6 is rotatably provided with a drive means M2, which is, for example, a servo motor, as a drive source, and the vertical seal mechanism 5 causes the vertical seal portion F1 to rotate.
The pair of horizontal heat-sealing rolls 6a, which face each other with the film F formed therein being sandwiched therebetween, laterally seal the film F in the lateral direction to form a horizontal seal portion F2 which is the bottom of the package P. Both lateral heat seal rolls 6a
Like the vertical seal mechanism 5, an electric heater (not shown) is incorporated inside.

The filling mechanism 7 comprises a supply means M3 which will be described in detail later.
The content W consisting of a seasoning or soup containing a solid substance such as sesame or a piece of meat sent by is continuously formed into a bottomed tubular shape by the vertical seal portion F1 and the horizontal seal portion F2 via the nozzle N. The film F is filled. Further, the bag mouth portion of the film F containing the contents W is further fed and laterally sealed again in the lateral direction by the lateral sealing mechanism 6 to be in a sealed state, and is vertically moved via the connecting seal portion composed of the lateral seal portion F2. A continuous wrapping body F3 that is continuously wrapped in the direction is formed.

The notch forming mechanism 8 cuts a part of the continuous package F3 by a rotary blade 8b provided on a rotary shaft 8a which is rotated by a driving means M4 composed of, for example, a servo motor to open a notch (not shown). Not).

The cutter mechanism 9 separates and cuts the substantially central portion of the lateral seal portion F2 of the continuous package F3 in a vertically-enclosed continuous package by a pair of opposed blades to cut the individual package P.
Is what you get. Further, one of the pair of blades is composed of a rotary blade (not shown) provided on a rotary shaft (not shown) rotated by a driving means M5 including, for example, a servo motor, and the other is a fixed blade (not shown). ).

The distribution mechanism 10 has a guide plate 10a provided at the latter stage of the cutter mechanism 9, and is driven by a rotary solenoid 10b described later to rotate the guide plate 10a to discharge the package P. It determines the direction.

Next, the electrical configuration of the embodiment of the present invention will be described with reference to FIG.

The setting means K1 is composed of a touch panel that also serves as an input setting section and a display section, and various types according to the packaging form of each product such as the transfer speed of the film F and the seal pitch (the interval between the horizontal seal sections F2). It is possible to input and set production conditions and display various set values that have been set.

The control means K2 is composed of a microcomputer, and has a ROM in which a program for a processing operation described later is stored, a RAM for temporarily storing a calculated value, a CPU for executing the program, and a mark detecting means B.
1, a seam detecting means B2, a setting means K1, an I / O interface and the like for establishing an electrical connection with each means described later. Further, the control means K2 is
It has an oscillator that emits pulses at regular intervals and a counter that counts pulse signals from the oscillator, and measures the time described in detail later. In this case, the control means K2
Also serves as a control means for intensively controlling the filling and packaging machine A. Further, the control means K2 is provided with a storage means composed of a non-volatile memory such as a backup RAM or an EEPROM, and various setting values based on the production conditions set by the setting means K1 are stored in this storage means.

The mark detecting means B1 is composed of a photoelectric sensor or the like capable of detecting the registration mark R printed on the transferred film F, and the control means K2 is accompanied with the detection of the registration mark R.
A mark detection signal (first detection signal), which will be described later in detail, is output.

The seam detecting means B2 is, for example, a film F.
Is composed of a photoelectric sensor or the like capable of detecting the joint portion S which is the connection point of the control means K2.
A joint detection signal (second detection signal), which will be described later in detail, is output. Further, the seam detecting means B2 is attached to the machine base so as to be located upstream of the mark detecting means B1 in the transport direction of the film F.

The lateral seal detecting means C1 is a lateral seal mechanism 6
The horizontal heat-seal roll 6
It is composed of a photoelectric sensor capable of detecting the rotation of a, and outputs a lateral seal detection signal, which will be described in detail later, to the control means K2.

The notch detecting means C2 is a notch forming mechanism 8
In order to determine the rotation operation of the above, it comprises a photoelectric sensor or the like capable of detecting the rotation of the rotary shaft 8a, and outputs a notch detection signal described later in detail to the control means K2.

The cutting detecting means C3 is composed of a photoelectric sensor or the like capable of detecting the rotation of the rotary shaft in order to judge the rotational movement of the cutter mechanism 9, and outputs a cutting detection signal which will be described later in detail to the control means K2. To do.

The driving means M1 is a vertical heat seal roll 5
The servo motor serves as a drive source for rotating a and is rotated based on a control signal from the control means K2. The control means K2 outputs a control signal to the drive means M1 via a drive circuit (not shown),
Acceleration / deceleration control of the rotation operation is performed. The control means K2
The applicant of the present application performs acceleration / deceleration control of the drive means M1 by the control method disclosed in Japanese Patent Application No. 2001-330295, sends the film F at a predetermined speed based on the mark detection signal, and joints S Is detected by the mark detecting means B1 by mistake, the film F
Is continued at the predetermined speed.

The driving means M2 is a horizontal heat seal roll 6
The servo motor serves as a drive source for rotating a and rotates based on a control signal from the control means K2. The control means K2 outputs a control signal to the drive means M2 via a drive circuit (not shown) to control the rotation operation.

The supply means M3 comprises, for example, a pump,
The contents W are sent out through a nozzle N into a continuously transferred film F formed in a cylindrical shape with a bottom by a vertical seal portion F1 and a horizontal seal portion F2. The control means K2 is
A control signal is output to the supply means M3 via a drive circuit (not shown) to continuously supply the content W of a predetermined amount set by the setting means K1.

The drive means M4 is composed of the servo motor which serves as a drive source for rotating the rotary shaft 8a of the notch forming mechanism 8, and rotates based on a control signal from the control means K2. The control means K2 outputs a control signal to the drive means M4 via a drive circuit (not shown) to control the rotation operation.

The drive means M5 is composed of the servomotor which serves as a drive source for rotating the rotary shaft of the cutter mechanism 9, and rotates based on a control signal from the control means K2. The control means K2 outputs a control signal to the drive means M5 via a drive circuit (not shown) to control the rotation operation.

The rotary solenoid 10b has a control means K.
The direction in which the package P is discharged is determined by driving the guide plate 10a so as to rotate based on the control signal from 2.

Next, the control means K2 will be described with reference to FIGS.
A procedure for obtaining a good sealing position by the lateral sealing mechanism 6 when using the film F having the seam portion S according to 1) will be described.

FIG. 3 is a diagram showing mode switching when performing acceleration / deceleration control of the drive means M2 of the lateral seal mechanism 6 (hereinafter referred to as lateral seal control). Further, FIG. 4 is a diagram showing generation of a dummy signal (reference signal). FIG. 5 is a diagram showing the lateral seal control. In addition, FIG.
[Fig. 3] is a diagram showing respective detection signals from respective detecting means of the filling and packaging machine A.

First, in step S1 of FIG. 3, when the seam detection signal a is not input, the control means K2 sets the mode for performing the lateral seal control from the mark detection means B1 shown in FIG. 6B. The normal mode is set on the basis of the registration mark detection signal b issued together with the detection of the mark R (step S2). Further, when the seam detection signal a is input, the control means K2 uses the dummy signal c generated by the control means K2 shown in FIG. 6C as a reference for the mode for performing the horizontal seal control. The mode is set (step S3). Further, the control means K2 detects the position where the seam portion S is detected, that is, the seam detection means B.
The passing time t1 shown in FIG. 6 for the joint portion S to pass through the horizontal sealing mechanism 6 is set based on the length of the film F from the disposition position of 2 to the horizontal sealing mechanism 6 and the film feeding speed.
Then, the control means K2 continues the dummy signal mode before the passage of the passage time t1 and judges that the joint portion S has passed the horizontal sealing mechanism 6 after the passage of the passage time t1 (step S4), and the step again. When the input determination of the seam detection signal a of S1 is performed and the seam portion S is not detected,
The mode for performing the lateral seal control is switched to the normal mode.

The control means K2 also generates a dummy signal c as shown in FIG. That is, first, the control means K2
Determines whether the mode for performing the lateral seal control is the normal mode or the dummy signal mode (mode determination, step S5). And the control means K2
When the mode for performing the lateral seal control is the normal mode, the dummy signal c has a cycle (T1 = T2) substantially the same as the input cycle T1 of the registration mark detection signal b with reference to the registration mark detection signal b. , And the phase is the same as the phase of the registration mark detection signal b. That is, in the present embodiment, the control means K2 measures the time b (n) at which the input edge of the registration mark detection signal b is detected (step S6), and the registration mark detection signal b is generated from the generation period T2 of the dummy signal c. Time b at which the input edge of
(N) is subjected to subtraction processing (T2-b (n)) to obtain the dummy signal c
To calculate the time c (n) (step S7),
The dummy signal c is generated when the time c (n) at which the dummy signal c should be generated has elapsed (step S8).

In step S5, if the mode for performing the lateral seal control is the dummy signal mode, the control means K2 uses the previously generated dummy signal c as a reference and sets the dummy signal c to the dummy signal c. Generation period T2
Is generated. In the present embodiment, the control means K2 uses the generation time c (n-1) of the previous dummy signal c.
Is measured (step S9), and the generation cycle T of the dummy signal c is measured.
The generation time c (n-1) of the previous dummy signal c is subtracted from 2 (T2-c (n-1)) to calculate the time c (n) at which the dummy signal c should be generated (step s10). , The dummy signal c when the time c (n) at which the dummy signal c should be generated has elapsed
Is generated (step S11). Accordingly, even after the seam detection signal a is detected, the dummy signal having substantially the same period and phase as the input cycle T1 and the phase of the registration mark detection signal b input before the seam detection signal a is detected. The generation of c is continued.

The control means K2 also performs the lateral seal control as shown in FIG. That is, first, the control means K2
Determines whether the mode for performing the lateral seal control is the normal mode or the dummy signal mode (step S12). Then, the control unit K2, when the mode for performing the lateral seal control is the normal mode,
When the horizontal seal detection means C1 shown in FIG. 6D detects the input of the horizontal seal detection signal d that detects the rotational operation of the horizontal seal mechanism 6 (step S13), and the horizontal seal detection signal d is input. Measures the time d (n) at which the edge of the horizontal seal detection signal d is detected (step S14), and detects the input edge of the registration mark detection signal b from the time d (n) at which the edge of the horizontal seal detection signal d is detected. The calculated time b (n) is subtracted (d (n) -b (n)) to calculate a time difference (step S15). If the time difference is larger than a predetermined time difference t2, (d (n)) is calculated. -B (n)> t
2), outputting a control signal for controlling acceleration of the driving means M2 of the lateral sealing mechanism 6, and when the time difference is smaller than a predetermined time difference t2, (d (n) -b (n) <t.
2) A control signal for decelerating the driving means M2 of the lateral sealing mechanism 6 is output to perform acceleration / deceleration control of the driving means M2 of the lateral sealing mechanism 6 so that the film F is laterally sealed at a predetermined position ( Step S16). The time difference t2 is determined from the detection position of the registration mark R, that is, the film length from the position of the mark detection means B1 to the position of the lateral seal mechanism 6, the interval of formation of the registration mark R, and the film feed speed.
Further, the control means K2 performs the horizontal seal control so that the horizontal seal detection signal d has a cycle substantially the same as the input cycle T1 of the registration mark detection signal b (T1 = T3). Further, the control unit K2 sets each allowable range at the time difference t2 in consideration of the production condition and the allowable range of the product size set by the setting unit K1, but the description of the allowable range is omitted.

If the mode for performing the horizontal seal control in step S12 is the dummy signal mode, the control means K2 determines whether or not the horizontal seal detection signal d is input (step S17), and the horizontal seal is detected. When the detection signal d is input, the time d (n) at which the edge of the horizontal seal detection signal d is detected is measured (step S18), and the dummy signal is obtained from the time d (n) at which the edge of the horizontal seal detection signal d is detected. The generation time c (n) of c is subtracted to obtain (d (n)-
c (n)) time difference is calculated (step S19), and when this time difference is larger than a predetermined time difference t2 (d (n) -c (n)> t2), the driving means M2 of the lateral seal mechanism 6 is calculated. When the time difference is smaller than a predetermined time difference t2 (d (n) -c (n) <t2), the driving means M2 of the lateral seal mechanism 6 is decelerated. A horizontal control mechanism 6 outputs a control signal to control the film F so that the film F is laterally sealed at a predetermined position.
Acceleration / deceleration control of the driving means M2 is performed (step S2).
0).

By the above control method, the control means K2 is
As shown in FIG. 6, before the time a1 at which the input edge of the seam detection signal a is detected, the input edge of the horizontal seal detection signal d is set with reference to the times b1 and b2 at which the input edge of the registration mark detection signal b is detected. Is detected time d1,
The lateral seal control is performed so that the d2 becomes the time difference t2, and the time a1 at which the input edge of the seam detection signal is detected.
From the passing time t1 to the passing time t1, the time b3 at which the input edge of the mark detection signal b is detected including the time w1 at which the mark detection means B1 shown by the dotted line detects the input edge of the false detection signal generated by detecting the seam portion S. .About.b5 is not used as a reference when performing the horizontal seal control, but instead, the times d3 to d6 at which the input edge of the horizontal seal detection signal d is detected based on the generation times c2 to c5 of the dummy signal c are set to be the time difference t2. Lateral sealing is controlled, and after the passage of time t1,
The reference for performing the horizontal seal control is switched to the times b6 and b7 when the input edge of the registration mark detection signal b is detected, and the time d when the input edge of the horizontal seal detection signal d is detected.
The lateral seal control is performed so that the time difference t2 is 7 and d8.

The method of controlling the notch forming mechanism 8 and the cutter mechanism 9 is the same as the control of the lateral sealing mechanism 6, and therefore description thereof will be omitted. By switching between the dummy signal mode and the dummy signal mode, even if the seam portion S is erroneously detected by the mark detecting means B1, the acceleration / deceleration control (notch formation control, cutting control) of the drive means M4, M5 is performed.
Can be continued, the notch for opening is formed at an appropriate position of the packaging bag FW, and the continuous package F3 is continuously packaged in the vertical direction.
It is possible to cut and cut the substantially central portion of the lateral seal portion F2.

The control means K2 is also a seam detection means B.
The arrival time at which the seam portion S reaches the distribution mechanism 10 is set based on the length of the film F from the arrangement position of 2 to the distribution mechanism 10 and the film feed speed. Then, the control means K2 determines that the package P including the seam portion S has reached the distribution mechanism 10 after the arrival time, and outputs a control signal for controlling the rotary solenoid 10b of the distribution mechanism 10 to distribute the distribution mechanism 10. The guide plate 10a is driven to rotate so that the package P having the seam S is removed outside the normal process (outside the line).

In the filling and packaging machine A, the control means K2 inputs the registration mark detection signal b issued from the mark detection means B1 in accordance with the detection of the registration mark R, and based on the registration mark detection signal b, the lateral mark is detected. The seal control, the notch formation control, and the cutting control are performed, and after the seam detection signal a which is emitted from the seam detection means B2 with the detection of the seam portion S is input, it is input before the seam detection signal a is input. Input cycle T of registration mark detection signal b
The horizontal seal control, the notch formation control, and the cutting control are performed based on the dummy signal c generated with the same period and the same phase as the first phase. With the above-described configuration, the filling and packaging machine A detects the seam portion S by the mark detecting means B1 even when the film original fabric 1a having the seam portion S of the film F is used.
To prevent the lateral sealing position of the film F, the notch forming position, and the cutting position of the package P from deviating from respective proper positions of the film F, and to suppress the wasteful use of the film F. Is possible.

Further, in particular, after the control means K2 determines that the seam portion S has passed through the lateral seal mechanism 6, the notch forming mechanism 8 and the cutter mechanism 9, respectively, the lateral seal control, the notch forming control and the cutting control are performed. The reference at the time of performing is to switch from the dummy signal c to the registration mark detection signal b, and after the joint portion S has passed through each mechanism,
Again, the lateral seal control, the notch formation control and the cutting control can be performed with reference to the registration mark detection signal b. Moreover, since the apparatus is not stopped, it is possible to improve productivity.

When the control means K2 determines that the package P including the seam portion S has reached the distribution mechanism 10, it outputs a control signal for controlling the rotary solenoid 9b of the distribution mechanism 10 to guide the distribution mechanism 10. Board 1
0a is driven to rotate so that the package P having the seam portion S is excluded outside the normal process (outside the line), and the package having the seam portion of the film is mixed with a normal package. Can be automatically prevented.

In the embodiment of the present invention, the mark detecting means B for detecting the registration mark R is used as the detecting means.
2 of 1 and the seam detecting means B2 for detecting the seam portion S
However, the detecting means of the present invention is not limited to the embodiment of the present invention, and includes a detecting means for detecting the registration mark and the seam portion, and the detecting means is controlled by the control means. It may be configured to determine whether the object to be detected detected by is the registration mark or the seam portion. In the filling and packaging machine having such a configuration, the control means inputs the detection signal emitted from the detection means, and the detection signal is the first detection signal emitted in accordance with the detection of the registration mark or the seam. When it is determined whether the input detection signal is the first detection signal by determining whether it is the second detection signal that is emitted along with the detection of the portion, the above-described based on the first detection signal. After the horizontal seal control, the notch formation control, and the cutting control, and after determining that the input detection signal is the second detection signal, the input before the second detection signal is input. The lateral seal control, the notch formation control, and the cutting control are performed on the basis of a reference signal that is generated in substantially the same period and phase as the period and phase of the first detection signal. In this case, the registration mark and the seam portion can be detected by using a single detecting means,
It is possible to simplify the structure of the manufacturing apparatus by reducing the number of detecting means attached, and reduce the number of assembling steps of the filling and packaging machine by reducing the number of wires of the detecting means.

In the embodiment of the present invention, the filling mechanism 7 has a predetermined amount of contents W set by the setting means K1 in response to a control signal from the control means K2 to the supply means M3.
However, the filling mechanism is configured to intermittently supply a predetermined amount of contents in response to the first detection signal for detecting the registration mark of the film by the control means. Good. The filling and packaging machine having such a configuration,
The control means inputs a first detection signal generated upon detection of the registration mark, and fills the filling mechanism so as to fill the object to be filled at predetermined intervals based on the first detection signal. While controlling, after inputting the second detection signal emitted along with the detection of the seam portion of the film, the period and phase of the first detection signal input before inputting the second detection signal. The filling control is performed based on a reference signal generated at substantially the same period and substantially the same phase. Further, after determining that the joint portion has passed the filling mechanism, the filling control based on the reference signal is switched to the filling control based on the first detection signal. With the above configuration, the filling and packaging machine, even when using a film original fabric having a seam portion of the film, due to the seam portion, there is a deviation from the proper timing in the filling timing of the contents. It becomes possible to prevent it.

Further, in the embodiment of the present invention, the vertical sealing mechanism 5 is used as a feeding mechanism, but a dedicated feeding mechanism other than the vertical sealing mechanism 5 such as a feeding roller is provided, and the feeding mechanism is provided. May be controlled in the same manner as in the above-described embodiment.

Further, in the embodiment of the present invention, the dummy signal c which is the reference signal is generated so as to have substantially the same period as the input period T1 of the registration mark detection signal b set by the control means K2. However, the present invention is not limited to the embodiments of the present invention. For example, the reference input cycle of the registration mark detection signal, which is a theoretical value preset in order to keep the film transfer at a substantially constant speed. The reference signal may be generated so that the reference signal has substantially the same period.

[0059]

INDUSTRIAL APPLICABILITY The present invention relates to a filling and packaging machine for making a film wound into a roll and filling the filling bag with an object to be filled such as liquid, powder or viscous substance. , Even when using a film original film having a seam portion of the film, it is possible to prevent the film from being deviated from the proper position at the lateral seal position of the film and the cutting position of the package, and It is possible to suppress the wasteful use of.

[Brief description of drawings]

FIG. 1 is a diagram showing a filling and packaging machine according to an embodiment of the present invention.

FIG. 2 is a diagram showing an electrical configuration of the same filling and packaging machine.

FIG. 3 is a diagram showing switching of standards when performing horizontal sealing control of the filling and packaging machine.

FIG. 4 is a diagram showing generation of a dummy signal (reference signal) of the filling and packaging machine.

FIG. 5 is a diagram showing a lateral seal control of the filling and packaging machine.

FIG. 6 is a diagram showing respective detection signals from respective detection means of the filling and packaging machine.

[Explanation of symbols]

5 Vertical sealing mechanism (feeding mechanism) 5a Vertical heat seal roll 6 Horizontal sealing mechanism 6a Horizontal heat seal roll 8 Notch formation mechanism " 9 Cutter mechanism 10 Sorting mechanism 10b rotary solenoid A filling and packaging machine B1 mark detection means B2 seam detection means C1 Horizontal seal detection means C2 notch detection means C3 disconnection detection means F film K1 setting means K2 control means M1 drive means M2 drive means M3 supply means M4 drive means M5 drive means R cash register mark (register mark) S seam part

─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] November 22, 2002 (2002.11.
22)

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] 0045

[Correction method] Change

[Correction content]

The control means K2 also generates a dummy signal c as shown in FIG. That is, first, the control means K2
Determines whether the mode for performing the lateral seal control is the normal mode or the dummy signal mode (mode determination, step S5). And the control means K2
When the mode for performing the lateral seal control is the normal mode, the dummy signal c has a cycle (T1 = T2) substantially the same as the input cycle T1 of the registration mark detection signal b with reference to the registration mark detection signal b. , And the phase is the same as the phase of the registration mark detection signal b. That is, in the present embodiment, the control means K2 measures the time b (n) at which the input edge of the registration mark detection signal b is detected (step S6), and the generation cycle T2 of the dummy signal c and the registration
Time b (n) at which the input edge of the mark detection signal b is detected
The time c (n) for generating the dummy signal c is calculated from (step S7), and the time c for generating the dummy signal c is calculated.
When (n) has elapsed, a dummy signal c is generated (step S
8).

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0046

[Correction method] Change

[Correction content]

In step S5, if the mode for performing the lateral seal control is the dummy signal mode, the control means K2 uses the previously generated dummy signal c as a reference and sets the dummy signal c to the dummy signal c. Generation period T2
Is generated. In the present embodiment, the control means K2 uses the generation time c (n-1) of the previous dummy signal c.
Is measured (step S9), and the generation cycle T of the dummy signal c is measured.
2 and the previous generation time c (n-1) of the dummy signal c, the time c (n) at which the dummy signal c should be generated is calculated (step s10), and the dummy signal c should be generated. A dummy signal c is generated when the time c (n) has elapsed (step S11). Accordingly, even after the seam detection signal a is detected, the dummy signal having substantially the same period and phase as the input cycle T1 and the phase of the registration mark detection signal b input before the seam detection signal a is detected. The generation of c is continued.

[Procedure 3]

[Document name to be corrected] Drawing

[Name of item to be corrected] Fig. 4

[Correction method] Change

[Correction content]

[Figure 4]

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) B65B 61/18 B65B 61/18 61/28 61/28 F term (reference) 3E050 AA08 AB02 AB08 BA01 BA11 CA06 CB01 CB06 DC02 DD04 DE01 DF02 FA01 FB01 FB07 GA08 GB03 GC05 HA01 HA02 HA03 HA10 HB03 HB09 3E056 CA02 DA05 EA05 FB02 FD04 FH14 GA04 3E094 AA13 CA01 CA03 DA07 DA08 EA03 FA01 GA05 GA13 GA22 HA02 HA08

Claims (10)

[Claims] 1. A lateral sealing mechanism for laterally sealing a tubular film at a predetermined interval to form a continuous package, mark detecting means for detecting a register mark formed on the film, and the film. A seam detecting means for detecting a seam portion, and a first detection signal emitted from the mark detecting means in association with the detection of the register mark is inputted, and the film is arranged at predetermined intervals based on the first detection signal. The horizontal sealing mechanism is controlled so as to perform horizontal sealing, and the second detection signal is input from the seam detection means after the second detection signal issued in accordance with the detection of the seam portion is input. A control means for performing the lateral seal control based on a reference signal generated in substantially the same period and phase as the period and phase of the first detection signal input before. A filling and packaging machine comprising: a step. 2. A lateral sealing mechanism for laterally sealing a tubular film at a predetermined interval to form a continuous package, a register mark formed on the film, and a joint portion of the film are detected. A detection means and a detection signal emitted from the detection means are input to determine whether the detection signal is the first detection signal detecting the register mark or the second detection signal detecting the joint portion. Then, when it is determined that the input detection signal is the first detection signal, the lateral sealing mechanism laterally seals the film so as to laterally seal the film at a predetermined interval based on the first detection signal. Along with determining that the input detection signal is the second detection signal, the cycle and phase of the first detection signal input before inputting the second detection signal And a control unit configured to perform the lateral seal control based on a reference signal generated in substantially the same period and substantially in the same phase, and a filling and packaging machine. 3. The control means switches the lateral seal control based on the reference signal to the lateral seal control based on the first detection signal after determining that the seam portion has passed through the lateral seal mechanism. The filling and packaging machine according to claim 1 or 2, characterized in that. 4. A filling mechanism for filling an object to be filled into the tubular film, wherein the control means inputs the first detection signal and a predetermined value is determined based on the first detection signal. The filling control of the filling mechanism is performed so as to fill the object to be filled at intervals, and after the second detection signal is input, the filling control is performed based on the reference signal. The filling and packaging machine according to claim 3. 5. The control means switches the filling control based on the reference signal to the filling control based on the first detection signal after determining that the joint portion has passed through the filling mechanism. The filling and packaging machine according to claim 4. 6. A notch forming mechanism for forming an opening notch in the package, wherein the control means inputs the first detection signal and controls the notch forming mechanism based on the first detection signal. The filling and packaging machine according to any one of claims 1 to 5, wherein notch formation control is performed, and after the second detection signal is input, the notch formation control is performed based on the reference signal. . 7. The control means switches the notch formation control based on the reference signal to the notch formation control based on the first detection signal after determining that the joint portion has passed through the notch formation mechanism. The filling and packaging machine according to claim 6, wherein: 8. A cutter mechanism for cutting the packaging body into individual packaging bodies, wherein the control means inputs the first detection signal and cuts the cutter mechanism based on the first detection signal. The filling and packaging machine according to any one of claims 1 to 7, wherein the cutting control is performed based on the reference signal after the second detection signal is input while being controlled. 9. The control means switches the cutting control based on the reference signal to the cutting control based on the first detection signal after determining that the seam portion has passed through the cutter mechanism. The filling and packaging machine according to claim 8. 10. A packaging mechanism for allocating the wrapping body, wherein when the control means determines that the wrapping body including the joint portion has reached the allocating mechanism, the packaging body including the joint portion is The filling and packaging machine according to any one of claims 1 to 9, wherein the sorting mechanism controls the sorting so as to be separated from the packaging body.