JP3263944B2 - Filling and packaging machine - Google Patents

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 the packing bag with an object to be filled such as a liquid, a powder or a viscous substance. It is.

[0002]

2. Description of the Related Art As a filling and packaging machine for filling an object to be filled such as a liquid, a powder or a viscous substance, for example, Japanese Patent Application Laid-Open No.
As disclosed in JP-A-3410, JP-A-2-4626 or JP-A-2-32929,
The filling and packaging machine has a machine base, and a pair of stock shafts are provided on a side portion of the machine stand, and a stock wound with a film around the stock shaft is detachably held and exchangeable, A film guide section and a film folding section are disposed on the upper part of the machine base, and a vertical seal mechanism (film feeding mechanism), first and second horizontal seal mechanisms, and a cutter mechanism are provided on the front part of the machine base from above. The film is pulled out from the raw material by the vertical sealing mechanism, led out to the film folding portion via the film guide portion, and the film is folded in the longitudinal direction by a guide provided in the film folding portion, and the film is folded in two. The folded ends of the film are overlapped and heat-sealed by a pair of vertical heat-sealing rolls facing the vertical sealing mechanism and sent out. The film is formed into a cylindrical shape by the vertical seal, and the first horizontal seal is formed. The film is laterally sealed with a pair of opposed horizontal heat seal rolls, and a bottom portion is formed by the horizontal seal. The contents (package) such as articles are filled, the film is further fed, and the bag opening side of the film is horizontally sealed again by the horizontal heat seal roll of the first horizontal sealing mechanism to seal the material to be filled. A packing bag is obtained by further repressing (pressing and sealing) the horizontal sealing portion by the horizontal roll of the second horizontal sealing mechanism, and then cutting the horizontal sealing portion by the rotary cutter mechanism. It has been known.

[0003]

In the filling and packaging machine as described above, the product dimensions (seal pitch) of the package, the amount and temperature of the packaged product, the temperature of the film, Depending on the material and the like, the film may expand and contract. For example, in the case of filling a large amount of the packing object, since the bag-shaped film swells in the thickness direction due to the packing object, the seal pitch after filling the packing object is used. Will shrink with respect to the arbitrarily set seal pitch (horizontal seal pitch), and the actual seal pitch will be shifted from the arbitrarily set seal pitch. Therefore, in the filling and packaging machine, the timing of the horizontal sealing in the second horizontal sealing mechanism and the timing of the cutting of the continuous packaging bag in the cutter mechanism with respect to the actual seal pitch are determined using the operation switches and the like for each mechanism. The drive motor must be gradually adjusted, and these operations require a feeling and are not only poor in workability,
There is a problem that it takes time to learn.

If the timing correction of each of the driving motors described above is erroneously performed, the laterally sealed portion of the film laterally sealed by the first horizontal sealing mechanism must be re-pressed by the second horizontal sealing mechanism. The pressing position shifts and presses the film portion filled with the filling material, or the cutting mechanism should cut the horizontal sealing point of the continuous packaging bag, but the filling material is filled. However, there is a problem that the film to be packaged leaks from the film because the film portion is cut off, and the periphery of the filling and packaging machine is soiled.

Therefore, the present invention focuses on the above problem, and even if the actual horizontal seal chip of the film deviates from the arbitrarily set horizontal seal pitch by changing the packaging form for each product type, It is an object of the present invention to provide a filling and packaging machine capable of easily correcting the re-pressing pressure timing by the horizontal sealing mechanism and the cutting timing by the cutter mechanism.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a filling and packaging machine for vertically and horizontally sealing a film which is continuously transferred, and filling a continuous packaging bag which is formed in sections with a material to be filled. A vertical seal mechanism that performs the vertical seal, a first horizontal seal mechanism that performs the horizontal seal, a second horizontal seal mechanism that represses a horizontal seal portion by the first horizontal seal mechanism, Input means for inputting the actual dimension value of the packaging bag, and accelerating and decelerating the drive motor of the second horizontal sealing mechanism in accordance with the actual dimension value input by the input means, and Control means for controlling an appropriate position of the film to be laterally sealed by the mechanism so as to be pressed again by the second horizontal sealing mechanism;
It is composed of

Further, there is provided a filling and packaging machine for vertically and horizontally sealing a film which is continuously transferred and filling a continuous packaging bag which is formed in sections with an object to be filled. A first horizontal seal mechanism for performing a horizontal seal, a second horizontal seal mechanism for re-pressing the horizontal seal portion by the first horizontal seal mechanism, a driving motor for operating each of the mechanisms, Input means for setting the production conditions such as the film feed speed and the horizontal seal pitch of the film and inputting the actual dimension value of the packaging bag; and the second horizontal seal mechanism of the second horizontal seal mechanism according to the production conditions input by the input means. Setting a reference rotation speed of the drive motor, and setting the reference rotation speed of the drive motor of the second horizontal seal mechanism in accordance with the actual dimension value input by the input means; Control means for controlling the proper position of the film to be laterally sealed by the first horizontal sealing mechanism by performing the acceleration / deceleration adjustment so that the film is pressed again by the second horizontal sealing mechanism. Things.

[0008] Further, there is provided a filling and packaging machine for vertically and horizontally sealing a film to be continuously transported and filling a continuous packaging bag formed in a compartment with an object to be filled. Formed by a first horizontal sealing mechanism for performing horizontal sealing, a second horizontal sealing mechanism for re-pressing a horizontal sealing portion by the first horizontal sealing mechanism, and the first and second horizontal sealing mechanisms for the film. Cutter mechanism that cuts the horizontal seal location to be performed, each drive motor that operates each mechanism, setting of production conditions such as film feed speed and horizontal seal pitch of the film for each product type, and actual dimensions of the packaging bag Input means for inputting the second horizontal seal mechanism and the respective rotational speeds which serve as references for the respective drive motors of the cutter mechanism in accordance with the production conditions input by the input means. Acceleration / deceleration adjustment is performed on each of the reference rotation speeds of the driving motors of the second horizontal seal mechanism and the cutter mechanism according to the actual dimension value input by the input unit. Then, the proper position of the horizontal sealing portion by the first horizontal sealing mechanism is changed to the second horizontal sealing mechanism.
Control means for controlling the re-pressing force by the horizontal sealing mechanism of the above, and controlling the cutter mechanism to cut an appropriate position of the horizontal sealing portion of the film by the first and second horizontal sealing mechanisms. It is composed.

Further, there is provided a filling and packaging machine for vertically and horizontally sealing a film which is continuously transferred, and filling a continuous packaging bag to be filled with an object to be filled, wherein a vertical sealing mechanism for performing the vertical sealing is provided. Formed by a first horizontal sealing mechanism for performing horizontal sealing, a second horizontal sealing mechanism for re-pressing a horizontal sealing portion by the first horizontal sealing mechanism, and the first and second horizontal sealing mechanisms for the film. A cutter mechanism for cutting the horizontal seal portion to be performed, respective drive motors for operating the respective mechanisms, first rotation detecting means for detecting the operation of the drive motor of the first horizontal seal mechanism, Second rotation detecting means for detecting the operation of the driving motor of the second horizontal seal mechanism; third rotation detecting means for detecting the operation of the driving motor of the cutter mechanism; of Input means for setting the production conditions such as the film feed speed and the horizontal seal pitch and inputting the actual dimensional value of the packaging bag; and a first detection signal output from the first rotation detection means being input from the input means. To be input at a constant cycle determined by calculating according to the production conditions
The acceleration / deceleration processing of the drive motor of the first horizontal roll mechanism is performed, and the first detection emitted from the first rotation detection means at a substantially constant cycle according to the production condition input from the input means. The first detection time of the signal and the second and third signals emitted from the second and third rotation detecting means.
The first and second time differences, which are the reference to the second and third detection times of the detection signal, are respectively obtained, and the reference is set in accordance with the actual dimension value of the packaging bag set by the input means. By adjusting the first and second time differences, the first
The second horizontal seal mechanism presses the proper position of the horizontal seal portion by the second horizontal seal mechanism again.
Controlling the driving motor of the horizontal seal mechanism, and controlling the drive mechanism of the cutter mechanism so that the appropriate position of the horizontal seal portion of the film by the first and second horizontal seal mechanisms is cut by the cutter mechanism. And control means for controlling the motor.

A filling and packaging machine for vertically and horizontally sealing a film to be continuously transported and filling a continuous packaging bag formed in a compartment with an object to be filled, comprising: a vertical sealing mechanism for performing the vertical sealing; Formed by a first horizontal sealing mechanism for performing horizontal sealing, a second horizontal sealing mechanism for re-pressing a horizontal sealing portion by the first horizontal sealing mechanism, and the first and second horizontal sealing mechanisms for the film. Cutter mechanism for cutting the horizontal seal portion to be performed, each drive motor for operating each of the mechanisms, and before becoming the film feeding mechanism
Transfer speed detecting means for detecting the operating state of the vertical seal mechanism
When the first and the first rotation detecting means for detecting the operation of the driving motor of the horizontal sealing mechanism, the second rotation detecting unit for detecting the operation of the driving motor of the second horizontal sealing mechanism And third rotation detecting means for detecting the operation of the drive motor of the cutter mechanism, setting of production conditions such as film feed speed and horizontal seal pitch of the film for each product type, and actual dimensions of the packaging bag. The input means for inputting, and the first detection signal output from the moving speed detection means, such that the first detection signal is input at a constant cycle determined by calculating according to the production conditions input by the input means, While performing acceleration / deceleration processing of the drive motor of the vertical seal mechanism,
According to the production conditions input by the input means,
A first detection time of the first detection signal emitted from the transfer speed detection means at a substantially constant period;
The first, second, and third time differences between the second, third, and fourth detection signals of the second, third, and fourth detection signals emitted from the third rotation detection unit are obtained, and The acceleration / deceleration processing is performed on the driving motor of the first horizontal sealing mechanism so that the time difference of 1 is always constant. By adjusting the second and third time differences, the first
The second horizontal seal mechanism presses again the appropriate position of the horizontal seal position by the horizontal seal mechanism.
Controlling the drive motor of the horizontal seal mechanism, and driving the cutter mechanism so that the proper position of the horizontal seal portion of the film by the first and second horizontal seal mechanisms is cut by the cutter mechanism. And control means for controlling the motor.

Further, the control means includes a nonvolatile memory for storing the actual dimension value.

Further, the transfer speed detecting means is provided at a position upstream of the vertical seal mechanism in a transfer direction of the film or a register mark detecting means for detecting a register mark formed on the film, and the transfer of the film is performed. And roller rotation detecting means for detecting the operation of the roller rotating together with the roller.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention relates to a filling and packaging machine for vertically and horizontally sealing a film F to be continuously transported, and filling a continuous packaging bag to be filled with an object to be filled. Is a vertical sealing mechanism 5 for performing the vertical sealing.
A first horizontal sealing mechanism 6 for performing the horizontal sealing;
A second horizontal seal mechanism 7 for pressing the horizontal seal portion FS again by the horizontal seal mechanism 6 and a horizontal seal portion FS of the film F formed by the first and second horizontal seal mechanisms 6 and 7 of the film F. And a cutter mechanism 9 for cutting.

The control means 15 receives the detection signal b output from the first rotation detecting means 19 for detecting the operation of the drive motor 24 of the first horizontal seal mechanism 6 and outputs the set value input means (input means) 22. The motor of the drive motor 24 of the first horizontal roll mechanism 6 is input so as to be input at a constant period determined by calculation according to the input production conditions (film feed speed of the film F, horizontal seal pitch, etc.). In addition to performing the deceleration processing, the first detection time of the detection signal b emitted from the first rotation detection means 6 at a substantially constant cycle according to the production condition input from the set value input means 22, and the second horizontal seal The second and third detection times of the detection signals c and d emitted from the second and third rotation detection means 20 and 21 for detecting the operation of the drive motors 25 and 26 of the mechanism 7 and the cutter mechanism 9; The first to be the standard Calculated second time difference t1, t2, respectively, packaging bag F that is set by the setting value input section 22
By adjusting the reference first and second time differences t1 and t2 according to the actual dimension value L ′ of W, the first horizontal seal mechanism 6
The second horizontal sealing mechanism 7 presses the proper position of the horizontal sealing point FS by the second horizontal sealing mechanism 7 again.
Of the film F by the first and second horizontal sealing mechanisms 6 and 7,
The drive motor 26 of the cutter mechanism 9 is controlled so that the appropriate position of S is cut by the cutter mechanism 9.

Accordingly, since it is not necessary to adjust the seal timing by the second horizontal seal mechanism 7 and the cut timing by the cutter mechanism 9 which depend on a certain feeling as in the related art, it is necessary to correct the seal and the cut timing. Work can be performed easily. In addition, since an erroneous correction operation is not performed, the packaged object does not leak from the packaging bag FW, and the periphery of the filling and packaging machine is not stained.

Further, by providing the control means 15 with the non-volatile memory 14 for storing the actual dimension value L 'of the packaging bag FW, when producing the same type of packaging bag FW, the actual dimension value L' is It is sufficient to read the data, and the workability during the operation of the filling and packaging machine is reduced.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on embodiments shown in the accompanying drawings.

FIG. 1 is a front view showing the configuration of the filling and packaging machine, FIG. 2 is a block diagram showing the circuit configuration of the filling and packaging machine, FIG. 3 is a flowchart showing the processing procedure of the filling and packaging machine, and FIG. FIG. 5 is a view showing the operation of the drive motor, FIG. 5 is a view showing another operation of each drive motor of each mechanism, and FIG. 6 is a view showing a film packaging state.

In FIG. 1, the filling and packaging machine of the present embodiment is provided with a raw material shaft 2 provided on the side of a machine base 1, and a film raw material R in which a film F is wound around the raw material shaft 2 in a roll shape. A film guide section 3 and a film folding section 4 are provided at the upper part of the machine base 1, and a vertical sealing mechanism 5, a first and a second horizontal member are provided at the front part of the machine base 1 from above. There are provided sealing mechanisms 6 and 7, an opening notch mechanism 8 for inserting an opening notch (not shown) in the side edge seal portion FH of the film F, and a cutter mechanism 9 for cutting the packaging bag FW.

The film F is pulled out from the rolled film raw material R by the vertical sealing mechanism 5, is led out to the film folding portion 4 via the film guiding portion 3, and is folded by the folding guide provided in the film folding portion 4. F
Is folded in two along the longitudinal direction, and the film F is formed by a pair of opposed vertical heat seal rolls 5a of the vertical seal mechanism 5.
, Ie, the side end seal portion FH of the film F
Is heat sealed and sent out. The film F formed into a tubular shape by the side end seal portion FH is formed by a pair of opposed horizontal heat seal rolls 6 a of the first horizontal seal mechanism 6.
Then, the film F is heat-sealed in the horizontal direction, and the horizontal seal portion FS forms a bottom portion which becomes the packaging bag FW. Thus, the film F formed into a bottomed cylindrical shape is filled with a material to be filled made of a liquid such as a sauce or soy sauce by the filling mechanism 10, and the film F is sent to the first film again.
The bag mouth portion of the film F is heat-sealed in the horizontal direction by the horizontal heat sealing roll 6a of the horizontal sealing mechanism 6 to seal the object to be packaged. Then, the film F provided with the horizontal seal portion FS where the upper and lower sides of the packaged material are heat-sealed in the horizontal direction is pressed again by the pair of horizontal heat seal rolls 7a of the second horizontal seal mechanism 7. Note that the re-pressing pressure of the film F of the second horizontal sealing mechanism 7 may be either heat sealing or a simple pressing pressure without applying heat.
Next, an opening notch is formed by the opening notch forming mechanism 8 at an edge portion of the side end seal portion FH of the film F that becomes the packaging bag FW in which the above-mentioned packaged object is sealed. By cutting the intermediate part of the horizontal seal part FS by the cutter mechanism 9, each packaging bag F
W will be obtained. The individual packaging bags FW are taken out and conveyed by a conveyor or the like.

In this filling and packaging machine, a guide roll (roller) 1 for guiding the film F in the direction of the film folding section 4 is provided between the film guiding section 3 and the film folding section 4.
1 is provided. The guide roll 11 rotates according to the transfer speed of the film F fed out by the vertical sealing mechanism 5.
Roller rotation detecting means (described later) for detecting the rotation of the roller 1 is provided. Incidentally, the roller rotation detecting means detects the rotation of the guide roller 11 by detecting a detecting portion provided on the guide roller 11, such as a slit or a projection.

Next, the circuit configuration of such a filling and packaging machine will be described with reference to FIG. 2. In this circuit configuration, the vertical seal mechanism 6, the first and second horizontal seal mechanisms 6, 7, and the cutter mechanism 9 will be described. The description will be made, and the description of the opening notch forming mechanism 8 will be omitted.

In FIG. 2, reference numeral 12 in the figure has a transmitter (not shown) for transmitting pulses at regular intervals and a counter (not shown) for counting pulse signals from the transmitter. CP that measures the detection time when each detection signal issued from the means is input and calculates the period of each signal, executes a ROM program described later, and the like.
U and 13 are memory units (ROM) storing a system program corresponding to the above processing, and 14 is a seal pitch (horizontal seal pitch), a film feed speed, a filling amount, and the like according to a packaging form for each type of packaging bag FW. An EEPROM that stores production conditions and actual dimensions of a packaging bag FW, which will be described in detail later, in a nonvolatile manner.
And a non-volatile memory such as a backup RAM and the like.
4 constitutes a control means 15, and each part 12, 13, 14 of this control means 15 is connected to an interface circuit 17 via a bus 16.

The interface circuit 17 is provided on the guide roll 11 described above,
A roller rotation detecting means (transfer speed detecting means) 18 comprising a photosensor, a transmission type sensor, etc. for detecting the rotation of
First rotation detecting means (origin detecting means including a proximity switch) for detecting the rotating operation of the first horizontal seal mechanism 6 19
A second rotation detecting means 20 for detecting the rotation operation of the second horizontal seal mechanism 7, a third rotation detection means 21 for detecting the rotation operation of the cutter mechanism 9, and the production conditions and the packaging bag FW. A set value input unit 22 such as a keyboard, for example, which allows actual dimensions and the like to be input from the outside, is connected as an input unit of the control unit 15.

Further, the interface circuit 17 includes a vertical seal mechanism 5 and a first
Each of the driving motors 23, 24, 25, 26 including a step motor, a servo motor, and the like for controlling the rotation of the horizontal sealing mechanism 6, the second horizontal sealing mechanism 7, and the cutter mechanism 9 is provided with each of the driving drivers 27, 28, 29. , 30 are connected. As an output unit, a display unit 31 such as a liquid crystal display device for displaying the contents set by the set value input unit 22 and the production conditions (such as the seal pitch, transfer speed, and filling amount of the film F) is connected. Have been.

With such a circuit configuration, the filling and packaging machine is configured to control each of the above-described mechanisms under the monitoring of the control means 15.

Next, referring to FIGS. 2 to 5, a case where a good sealing position and a cutting position are obtained by the first and second horizontal sealing mechanisms 6, 7 and the cutter mechanism 9 of the filling and packaging machine of the present invention will be described. The procedure will be described.

When using the filling and packaging machine, first, the power is turned on (step S1). Next, production conditions such as the seal pitch, transfer speed, and filling amount of the film F are input by the set value input means 22 (step S2).
When the production conditions are set, the control means 15 sets the following contents (step S3).

The control means 15 determines the operating state of the vertical sealing mechanism 5 serving as a mechanism for feeding out the film F from the guide roll 11 rotating with the film F being fed out.
A detection unit (not shown) including a slit, a projection, and the like provided on the guide roll 11 is detected by the roller rotation detection unit 18. Therefore, the control unit 15 receives the detection signal a output from the roller rotation detection unit 18 and sets the period T1 of the detection signal a from the circumference of the guide roll 11 and the film feed speed under the production conditions ( Step S
3).

Accordingly, the control means 15 receives the detection signal a output from the roller rotation detection means 18 and controls the drive motor 23 of the vertical seal mechanism 5 so that the period T1 of the detection signal a is substantially constant. By performing the acceleration / deceleration control, the film F is sent out at a arbitrarily set constant transfer speed.

The control means 15 determines the rotational operation of the first horizontal seal mechanism 6 from the first rotation detecting means 19 provided in the first horizontal seal mechanism 6, so that the first horizontal seal mechanism 6 can be used. 6. The heat seal roll 6a provided in the
Is detected by the rotation detecting means 19. Therefore, the control means 15 receives the detection signal (first detection signal) b output from the first rotation detection means 19, and determines the period T2 of the detection signal b based on the seal pitch and the film feed speed under the production conditions. Is set (step S3).

Therefore, the control means 15 controls the driving motor 2 of the first horizontal sealing mechanism 6 so that the cycle T2 of the detection signal b output from the first rotation detecting means 19 becomes substantially constant.
By controlling the acceleration / deceleration of the film 4, an arbitrary set constant seal chip can be obtained for the film F delivered at an arbitrary set constant transport speed.

Further, the control means 15 uses the detection signal b output from the first rotation detecting means 19 as a reference, and feeds the film feed speed and the seal pitch under the production conditions and the first horizontal sealing mechanism in the filling and packaging machine. 6, the second and third rotation detecting means 20, 21 of the second horizontal seal mechanism 7 and the cutter mechanism 9, which are determined from the positions where the second horizontal seal mechanism 7 and the cutter mechanism 9 are disposed. The first and second times (time differences) t1 and t2 to which the respective detection signals (second and third detection signals) c and d output from are input are set. Further, the control unit 15 controls the second horizontal sealing mechanism 7.
And the second and third rotation detecting means 20 of the cutter mechanism 9,
21, each period T3, T of each detection signal c, d issued from
4 is set to the same cycle as the cycle T2 (T2 = T3 = T4) (step S3). In addition, the control unit 15 determines each allowable range of the second horizontal seal mechanism 7 and the cutter mechanism 9 at each time t1 and t2 in consideration of the production condition and the allowable range of the product size set by the set value input unit 22. Although set, the description of the allowable range is omitted in the present embodiment.

Therefore, the control means 15 controls the detection signals c and d output from the second and third rotation detecting means 20 and 21 respectively.
Are input with substantially constant first and second time differences t1 and t2 with respect to the detection signal b, and the detection signals c and d are input in the same cycle as the cycle T2. 7 and the drive motors 25 and 26 of the cutter mechanism 9
Of the film F delivered at an arbitrarily set constant transfer speed, the horizontal sealing portion FS, which is horizontally sealed by the first horizontal sealing mechanism 6, is controlled by the second horizontal sealing mechanism 7. , And the horizontal seal point FS
Can be theoretically cut by the cutter mechanism 9.

Next, the filling and packaging machine is operated to produce packaging bags FW according to the production conditions (step S4).

Next, after taking a sample of a predetermined number of packaging bags FW (step S5), the filling and packaging machine is stopped (step S6), and a plurality of packaging bags FW serving as samples are taken in the vertical direction shown in FIG. Is measured (step S7). Note that the actual dimension value L ′ of the packaging bag FW in the present embodiment is based on the cutting position by the cutter mechanism 9 substantially at the center of the horizontal sealing portion FS of the packaging bag FW, and for example, using a scale that is not easily curved. The actual dimension value L 'is measured. Packaging bag FW. In the case of producing a large-capacity packaging bag FW in which the sealing pitch L of the packaging bag FW under the above production conditions is, for example, 150 mm and the filling amount of the packaged product exceeds 200 cc, the bag-shaped film F is covered. When the package expands in the thickness direction, the dimension in the vertical direction is reduced, and the seal pitch L under the production conditions is changed to L '. Accordingly, the second horizontal seal mechanism 7 and the cutter mechanism 9 are formed. It is necessary to change the re-pressing pressure and the timing of cutting.

Second horizontal seal mechanism 7 and cutter mechanism 9
In the case where the re-pressing pressure and the cutting timing are changed, the actual dimension L ′ of the seal pitch is, for example, 147 m in the measurement of the actual dimension L ′ performed in step S7.
A correction value (actual dimension value L ′) such as m is input (step S8).

By inputting the actual dimension value L ', the control means 15 causes each of the detection signals output from the second and third rotation detecting means 20 and 21 of the second horizontal seal mechanism 7 and the cutter mechanism 9 to be detected. The first and second times t1 and t2 of c and d are
Based on the detection signal b output from the first rotation detecting means 19, the film feed speed under the production conditions and the actual dimension value L 'of the packaging bag FW and the first horizontal sealing mechanism 6 in the filling and packaging machine are used as a reference. The detection signals c and c output from the second and third rotation detecting means 20 and 21 are determined based on the arrangement positions of the second horizontal seal mechanism 7 and the cutter mechanism 9 when
First and second time (time difference) t at which d is to be input
1 ′ and t2 ′ (the timing at which the detection signals c and d should be input with respect to the reference is advanced) (step S
9). The control means 15 changes the first and second times t1 and t2 but does not change the periods T3 and T4 according to the actual dimension value L 'of the packaging bag FW.

In step S9, the corrected first and second
By operating the filling and packaging machine based on the times t1 'and t2' (step S10), the control means 15 makes the detection signals c and d output from the second and third rotation detection means 20 and 21 available. Are input with substantially constant first and second time differences t1 ′ and t2 ′ based on the detection signal b, and the second detection signals c and d are input in the same cycle as the cycle T2.
Since the drive motors 25 and 26 of the horizontal seal mechanism 7 and the cutter mechanism 9 are controlled by acceleration and deceleration, the first horizontal seal is applied to the film F which is sent out at a arbitrarily set constant transfer speed. The horizontal seal portion FS laterally sealed by the mechanism 6 can be pressed again by the second horizontal seal mechanism 7, and the horizontal seal portion FS can be cut by the cutter mechanism 9.

The above-described filling and packaging machine can be used to change the packaging bag FW depending on the filling amount and the filling temperature of the material to be filled, the material of the film F, and the like.
Even when the expansion and contraction action in the vertical direction occurs, by inputting the actual dimension value L ′ of the packaging bag FW by the set value input means 22, each drive of the second horizontal seal mechanism 7 and the cutter mechanism 9 is performed. Control the motors 25 and 26 for
Horizontal sealing part FS of the film F by the horizontal sealing mechanism 6 of FIG.
Can be pressed again by the second horizontal sealing mechanism 7 and the appropriate position of the horizontal sealing point FS can be cut by the cutter mechanism 9.
The seal timing and the cutter mechanism 9 by the second horizontal seal mechanism 7 which rely on a certain feeling as in the related art
It is not necessary to adjust the cut timing by means of filling, so that the work of correcting the seal and cut timing can be easily performed, and since no skill is required, anyone can easily perform the correction work. We can provide a packaging machine. In addition, since an erroneous correction operation is not performed, the packaged object does not leak from the packaging bag FW, and the periphery of the filling and packaging machine is not stained.

The actual dimension value L 'of the package FW is stored in the nonvolatile memory 1 of the control means 15 in accordance with the packaging form for each product type.
In the case where the same type of packaging bag is produced, the actual dimension value L 'may be read out, and workability during operation of the filling and packaging machine is reduced. is there.

In the above-described filling and packaging machine, the vertical sealing mechanism 5
Is controlled at a constant speed by a transfer speed detecting means 18 provided on the guide roll 11 to control the second horizontal seal mechanism 7 and the cutter mechanism 9 based on the first horizontal seal mechanism 6, respectively. Next, referring to FIG. 5, the control means 15 of step S3 and step S9 when register marks (hereinafter, referred to as register marks) formed at predetermined intervals on the film F are provided.
The processing method will be described.

In step S3, the control means 15
A detection signal (first detection signal) a from a registration mark detection unit (transfer speed detection unit) (not shown) provided near the guide roll 11 of the filling and packaging machine and configured by a transmission type sensor or the like for detecting the registration mark. The cycle T1 is set from the registration mark forming interval of the film F, which is a production condition, and the film feed speed.

In step S3, the control means 1
Reference numeral 5 denotes a detection position of the registration mark, that is, a position of the registration mark detection means, based on a detection signal a output from the registration mark detection means. 9, the rotation detecting means 19, 20, of the first and second horizontal seal mechanisms 6, 7 and the cutter mechanism 9 determined from the film length, the registration mark formation interval, and the film feed speed. 21 detection signals (second, third, and fourth detection signals) b, c, and d
Are set for each time (time difference) t1, t2, t3 to be input. In addition, the control means 15 controls the detection signals b, c emitted from the first, second, and third rotation detection means 19, 20, 21 of the first and second horizontal seal mechanisms 6, 7 and the cutter mechanism 9, respectively. , D are set to the same period as the period T1 (T1 = T2 = T3 = T4). The control unit 15 considers the production conditions and the allowable range of the product dimensions set by the set value input unit 22 and considers the time t1 of each of the first and second horizontal sealing mechanisms 6 and 7 and the cutter mechanism 9.
Each allowable range at t2 and t3 is set, but the description of the allowable range is omitted as in the above-described embodiment.

Accordingly, the control means 15 receives the detection signal a output from the registration mark rotation detection means, and controls the driving motor 23 of the vertical seal mechanism 5 so that the period T1 of the detection signal a becomes substantially constant. Is controlled by the acceleration / deceleration control, the film F is sent out at a arbitrarily set constant transfer speed. Further, the control means 15 controls the first, second, and third rotation detection means 19, 20, and 21 so that each of the detection signals b, c, and d is substantially constant with respect to the detection signal a.
The first and second horizontal sealing mechanisms 6 and 7 are inputted with the second and third time differences t1, t2 and t3 so that the respective detection signals b, c and d have the same period as the period T2. By controlling the driving motors 24, 25, and 26 of the cutter mechanism 9 to accelerate and decelerate, the first horizontal sealing mechanism 6 is applied to the film F which is sent out at a arbitrarily set constant transfer speed.
It is theoretically possible to re-press the horizontal sealing portion FS, which has been horizontally sealed by the second horizontal sealing mechanism 7, and cut the horizontal sealing portion FS by the cutter mechanism 9.

In step S9, when the actual dimension value L 'of the packaging bag FW is input in step S8, the control means 15 outputs from the rotation detecting means 20, 21 of the second horizontal seal mechanism 7 and the cutter mechanism 9. Detection signals c,
The second and third times t2 and t3 of d are determined based on the detection signal a output from the registration mark detecting means, and the positions of the second horizontal seal mechanism 7 and the cutter mechanism 9 are determined from the position of the registration mark detecting means. Each film length up to the position,
Second and third rotation detecting means 2 determined from the film pitch and the seal pitch associated with the actual dimension value L 'of the packaging bag FW.
The respective detection signals c and d of 0 and 21 are corrected to respective times (time differences) t2 'and t3' to be input. The control means 1
Reference numeral 5 changes the first and second times t1 and t2 but does not change the periods T3 and T4 according to the actual dimension value L 'of the packaging bag FW.

Therefore, similarly to the above-described embodiment, even if the packing bag FW expands and contracts in the vertical direction depending on the filling amount and the filling temperature of the material to be filled, the material of the film F, etc. By inputting the actual dimension value of the seal pitch by the set value input means 22, the drive motors 25 and 26 of the second horizontal seal mechanism 7 and the cutter mechanism 9 are accelerated / decelerated, and the first horizontal seal mechanism is controlled. Film F by 6
The appropriate position of the horizontal seal portion FS of the second horizontal seal mechanism 7
The pressing force can be re-pressed, and the appropriate position of the horizontal sealing portion FS can be cut by the cutter mechanism 9.

Although the description of the opening notch forming mechanism 8 is omitted in the description of the present embodiment, the actual size of the seal pitch of the packaging bag FW is input in the same manner as in the above-described processing to open the notch. The opening notch can be formed at an appropriate position of the packaging bag FW by adjusting the time at which the detection signal output from the rotation detecting means of the notch forming mechanism 8 is to be input by the acceleration / deceleration control of the driving motor. .

The filling and packaging machine of this embodiment is an example of a filling and packaging machine provided with a vertical sealing mechanism 5, first and second horizontal sealing mechanisms 6, 7, an opening notch forming mechanism 8, and a cutter mechanism 9. However, the present invention is not necessarily limited to a filling and packaging machine provided with all the above-described mechanisms, and includes, for example, a vertical seal mechanism, a horizontal seal mechanism (one horizontal roll mechanism), and a cutter mechanism. Any filling and packaging machine provided. However, in this case, only the cutter mechanism corrects the cut timing based on the actual dimensional value of the packaging bag.

The present invention can also be applied to a large-capacity filling-type filling and packaging machine in Japanese Patent Application No. 9-354224 proposed by the present applicant. In this case, the control means controls acceleration and deceleration of the drive motor 26 of the cutter mechanism 9 so that the detection signal of the rotation detection means of the cutter mechanism is synchronized with the detection signal of the rotation detection means of the second horizontal seal mechanism. The vertical mechanism provided in the cutter mechanism is moved to a position that is an integral multiple of the actual dimension value.

Further, the control means 15 of the present embodiment, when the production conditions are input by the set value input means, sets the reference motors 25 and 26 of the second horizontal seal mechanism 7 and the cutter mechanism 9 for reference. Then, the second horizontal seal mechanism 7 and the cutter mechanism 9 are set in accordance with the actual dimension value L ′ input by the set value input unit 22.
The acceleration / deceleration adjustment is performed for each of the reference rotation speeds of the drive motors 25 and 26, respectively. However, the control means of the filling and packaging machine of the present invention uses the actual dimensional value L of the packaging bag FW. If 'is known in advance, each driving motor 25, 26 can be adjusted by inputting the actual dimension value L' from the beginning.

In this embodiment, the set value input means 22
And display means 31 for displaying the contents and production conditions input by the set value input means 22, but a touch panel or the like integrally provided with these input means and display means may be used.

In the above-described embodiment, the explanation has been given of the case where the bag-like film contracts depending on the filling amount.
Depending on the packaging form for each type of product, the bag-shaped film may grow due to factors such as the filling temperature of the packaged material and the material of the film. The control may be performed such that the cut timing is delayed with respect to the reference.

[0054]

The present invention relates to a filling and packaging machine for vertically and horizontally sealing a film to be continuously transported to fill a continuous packaging bag to be filled with an object to be filled. According to the actual dimensions of the packaging bag
The driving motors of the second horizontal seal mechanism and the cutter mechanism are accelerated and decelerated, and the appropriate position of the horizontal seal point by the first horizontal seal mechanism is controlled so as to be pressed again by the second horizontal seal mechanism. The cutter mechanism controls the first and second horizontal sealing mechanisms to cut the proper position of the horizontal sealing portion of the film, and relies on a certain feeling as in the prior art. Since the adjustment of the seal timing by the second horizontal seal mechanism and the cut timing by the cutter mechanism need not be performed, the work of correcting the seal and the cut timing can be easily performed. In addition, since an erroneous correction operation is not performed, the packaged object does not leak from the packaging bag, and the periphery of the filling and packaging machine is not stained.

If the actual dimensions of the package are stored in the non-volatile memory of the control means in accordance with the packaging form for each type, the same type of packaging bag is produced when the same type of packaging bag is produced. What is necessary is just to read out an actual dimension value, and the workability at the time of operation of a filling and packaging machine is reduced.

[Brief description of the drawings]

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

FIG. 2 is a block diagram showing a circuit configuration of the filling and packaging machine of the embodiment.

FIG. 3 is a flowchart showing a processing procedure of the filling and packaging machine of the embodiment.

FIG. 4 is a view showing the operation of each drive motor of each mechanism of the embodiment.

FIG. 5 is a diagram showing another operation of each drive motor of each mechanism of the embodiment.

FIG. 6 is a view showing a packaging state of the film of the embodiment.

[Explanation of symbols]

 Reference Signs List 5 vertical seal mechanism 6 first horizontal seal mechanism 7 second horizontal seal mechanism 9 cutter mechanism 9c drive means 11 guide roll 12 CPU 13 ROM 14 non-volatile memory 15 control means 18 roller rotation detection means (transport speed detection means) 19 First rotation detection means 20 Second rotation detection means 21 Third rotation detection means 22 Set value input means (input means) 27, 28, 29, 30 Driving motor

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B65B 9/00-9/24 B65B 51/10 B65B 51/26-51/30 B65B 57/00

Claims (7)

(57) [Claims] 1. A filling and packaging machine for vertically and horizontally sealing a film that is continuously transported, and filling a filled continuous packaging bag with a material to be filled, wherein: a vertical sealing mechanism for performing the vertical sealing; A first horizontal seal mechanism for performing a horizontal seal, a second horizontal seal mechanism for re-pressing the horizontal seal portion by the first horizontal seal mechanism, an input unit for inputting an actual dimension value of the packaging bag, and the input Means for adjusting the drive motor of the second horizontal seal mechanism in accordance with the actual dimension value inputted by the means, and adjusting the proper position of the film to be horizontally sealed by the first horizontal seal mechanism to the second position. Control means for controlling the pressing force by the horizontal sealing mechanism of (1). 2. A filling and packaging machine that vertically and horizontally seals a film that is continuously transferred and fills a continuous packaging bag that is sectioned with an object to be filled, wherein: a vertical sealing mechanism that performs the vertical sealing; A first horizontal seal mechanism for performing a horizontal seal; a second horizontal seal mechanism for re-pressing the horizontal seal portion by the first horizontal seal mechanism; a driving motor for operating each of the mechanisms; Input means for setting production conditions such as a film feed speed and a horizontal seal pitch of the film, and inputting actual dimensions of the packaging bag; and the second horizontal seal mechanism according to the production conditions input by the input means. A reference rotation speed of the drive motor is set, and the reference rotation speed of the drive motor of the second horizontal seal mechanism is set according to the actual dimension value input by the input means. Control means for controlling the proper position of the film to be laterally sealed by the first horizontal sealing mechanism by performing acceleration / deceleration adjustment so that the film is pressed again by the second horizontal sealing mechanism. Filling and packaging machine. 3. A filling and packaging machine that vertically and horizontally seals a film that is continuously transferred and fills a continuous packaging bag that is sectioned with an object to be filled, wherein: a vertical sealing mechanism that performs the vertical sealing; A first horizontal seal mechanism for performing a horizontal seal; a second horizontal seal mechanism for re-pressing a horizontal seal portion by the first horizontal seal mechanism; and a first horizontal seal mechanism for forming the film. A cutter mechanism for cutting the horizontal seal portion to be used, a drive motor for operating each of the mechanisms, a setting of production conditions such as a film feed speed and a horizontal seal pitch of the film for each type, and an actual dimensional value of the packaging bag. Input means for inputting, and setting a reference rotational speed of each drive motor of the second horizontal seal mechanism and the cutter mechanism according to the production condition input by the input means. Acceleration / deceleration adjustment is performed on each of the reference rotation speeds of the driving motors of the second horizontal seal mechanism and the cutter mechanism according to the actual dimension value input by the input unit. Then, while controlling the proper position of the horizontal sealing portion by the first horizontal sealing mechanism so as to be pressed again by the second horizontal sealing mechanism, the cutter mechanism is used to control the first and second horizontal sealing mechanisms. Control means for controlling the cutting of an appropriate position of the horizontal sealing portion of the film. 4. A filling and packaging machine that vertically and horizontally seals a film that is continuously transferred and fills a continuous packaging bag that is sectioned with an object to be filled, wherein: a vertical sealing mechanism that performs the vertical sealing; A first horizontal seal mechanism for performing a horizontal seal; a second horizontal seal mechanism for re-pressing a horizontal seal portion by the first horizontal seal mechanism; and a first horizontal seal mechanism for forming the film. A cutter mechanism that cuts a horizontal seal portion to be performed; a drive motor that operates each of the mechanisms; a first rotation detection unit that detects an operation of the drive motor of the first horizontal seal mechanism; Second rotation detecting means for detecting the operation of the driving motor of the second horizontal sealing mechanism; third rotation detecting means for detecting the operation of the driving motor of the cutter mechanism; and the film for each type. of Input means for setting production conditions such as a film feed speed and a horizontal seal pitch and inputting an actual dimension value of a packaging bag; and a first detection signal output from the first rotation detecting means is input from the input means. The acceleration and deceleration processing of the driving motor of the first horizontal roll mechanism is performed so that the input is performed at a constant cycle determined according to the production condition. Depending on conditions, a first detection time of the first detection signal emitted from the first rotation detection means at a substantially constant period, and a second and third emission times emitted from the second and third rotation detection means. First and second time differences, which are references to the second and third detection times of the detection signal, are respectively obtained, and the first and second time differences, which are the references according to the actual dimensions of the packaging bag set by the input means, are determined. 1, adjust the second time difference By controlling the drive motor of the second horizontal seal mechanism so that the appropriate position of the horizontal seal position by the first horizontal seal mechanism is pressed again by the second horizontal seal mechanism, Control means for controlling the driving motor of the cutter mechanism so that the cutter mechanism cuts an appropriate position of the lateral seal portion of the film by the second horizontal seal mechanism. Filling and packaging machine. 5. A filling and packaging machine that vertically and horizontally seals a film that is continuously transferred and fills a continuous packaging bag that is sectioned with an object to be filled, wherein: a vertical sealing mechanism that performs the vertical sealing; A first horizontal seal mechanism for performing a horizontal seal; a second horizontal seal mechanism for re-pressing a horizontal seal portion by the first horizontal seal mechanism; and a first horizontal seal mechanism for forming the film. A cutter mechanism that cuts a horizontal seal portion to be performed; a drive motor that operates each mechanism; and a vertical seal mechanism that serves as a film feeding mechanism.
Transfer speed detecting means for detecting an operation state; first rotation detecting means for detecting an operation of the drive motor of the first horizontal seal mechanism; and operation of the drive motor of the second horizontal seal mechanism. Second rotation detecting means for detecting the operation of the drive motor of the cutter mechanism; and third rotation detecting means for detecting the operation of the driving motor of the cutter mechanism. Input means for inputting settings and actual dimensions of the packaging bag; and a first detection signal output from the moving speed detection means, wherein the first detection signal is calculated and determined according to the production conditions input by the input means. The acceleration / deceleration process of the drive motor of the vertical seal mechanism is performed so as to be input at a period, and the transfer speed detection unit is substantially constant by the production condition input by the input unit. A first detection time of the first detection signal emitted in a cycle; and a second and a second detection signals of the second, third, and fourth detection signals emitted from the first, second, and third rotation detection means. Third, first, second, and third time differences from the fourth detection time are obtained, and the driving motor of the first horizontal seal mechanism is subjected to acceleration / deceleration processing so that the first time difference is always constant. Performing, and adjusting the second and third time differences as a reference in accordance with the actual dimension value of the packaging bag set by the input means,
The drive motor of the second horizontal seal mechanism is controlled so that the appropriate position of the horizontal seal position by the first horizontal seal mechanism is pressed again by the second horizontal seal mechanism, and the first and second motors are controlled. Control means for controlling the driving motor of the cutter mechanism so that the cutter mechanism cuts an appropriate position of the horizontal seal portion of the film by the horizontal seal mechanism. Machine. 6. The non-volatile memory for storing the actual dimension value in the control means.
Filling and packaging machine according to claim 5. 7. The transfer speed detecting means is provided on a register mark detecting means for detecting a register mark formed on the film or on the upstream side of the vertical seal mechanism in the transfer direction of the film. 6. The filling and packaging machine according to claim 5, further comprising roller rotation detecting means for detecting the operation of the roller rotating together with the roller.