JPH09272517A - Set film detector of film packaging machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent defective packages from being produced by automatically detecting and informing operators where or not a film set on a packaging machine properly corresponds to the sort of items to be packaged. SOLUTION: A bar code reader 42 to detect the bar code attached on a film 42 is arranged on the transfer route of the film 24. Signals detected by the bar code reader 42 are input to a bar code collator 44 and the collator 44 outputs various signals corresponding to the detected signals to a judging part 46 of a controller 64. The judging part 46 compares the detected value from the bar code collator 44 with the set value that is previously set by a sort setting device 56 and output the comparison result to a controller 38. The controller 38 issues such signals as an automatic stoppage of a packing machine, an abnormal alarm, etc., based on the judged result of the judging part 46.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a set film detection device for detecting the quality of a bar coded film set in a film packaging machine.

[0002]

2. Description of the Related Art With the spread of POS systems, most of the products sold at supermarkets, convenience stores, etc. are now packaged with a bar code corresponding to each product type. Among these products, if the product (product) is film-wrapped, at the manufacturing plant, set the roll wound with the film with the bar code corresponding to each kind of product to be packed in the film packaging machine. An article is wrapped with a film that is fed from the film roll.

[0003]

In the film used for the above-mentioned film packaging, only the bar code is printed on the transparent film, and the product name is indicated by a label or the like at the time of sale. Although it has been applied, there are some that are similar in design and difficult to distinguish. In other words, in manufacturing plants, these difficult-to-discriminate films are set in the packaging machine for packaging, and a barcode of a type different from the type of the item to be packaged is attached due to operator error or the like. In some cases, the rolled film was set in a packaging machine and the packaging was continued as it was. In this case, if the product with the wrong film packaging (packaged goods) is shipped to the supermarket, etc., a complaint from the delivery destination will occur, or the delivery destination will sell it to the user as it is, and the POS data It is pointed out that there are many serious problems that often make it difficult to understand the actual situation.

[0004]

SUMMARY OF THE INVENTION The present invention has been proposed in view of the above-mentioned problems inherent in the above-mentioned conventional techniques, and a film set by a worker in a film packaging machine is proposed. In a film packaging machine that can prevent the occurrence of defective packaging by automatically detecting whether the film has a barcode corresponding to the type of packaging target and notifying the operator It is an object to provide a set film detection device.

[0005]

[Means for solving the problems] To overcome the above-mentioned problems,
In order to achieve the intended purpose, the present invention sets a film roll around which a bar code is wound at a predetermined pitch in the transfer direction and sets the film roll at a loading position, and the film is fed from the film roll by a film transfer mechanism. In a packaging machine for manufacturing a package with a film, a bar code reader provided on the way of transfer of the film by the film transfer mechanism, capable of detecting a bar code attached to the film, and a film from a position where the bar code reader is disposed. A timing sensor, which is arranged at a predetermined distance on the upstream side in the transfer direction and is capable of detecting the passage of the barcode attached to the film, and a set value corresponding to the prescribed barcode for each type of article to be packaged. With the type setting means that can be switched and set, and the bar code reader based on the detection time of the timing sensor. Data setting means for setting the offset value for obtaining the detection timing of the code and the transmission section of the detection timing signal, the bar code detection value input from the bar code reader in the transmission section of the detection timing signal, and the product type setting It comprises a determination means for comparing the set value in the means and outputting the determination result, and a control means for issuing an automatic stop of the packaging machine, an abnormal alarm, etc. according to the output value from the determination means. Characterize.

In order to achieve the above object, another invention of the present application is to set a film roll around which a film having a bar code is attached at a predetermined pitch in a transfer direction, at a loading position, and to transfer a film from the film roll. In a packaging machine for producing a package by feeding out a film by means of a bar code reader provided on the way of transfer of the film by the film transfer mechanism, capable of detecting a bar code attached to the film, and in a transfer direction to the film. A registration mark sensor for detecting a registration mark printed at a predetermined pitch, a product type setting means capable of switching and setting a set value corresponding to a specified bar code for each product type of a packaged article, and detection of the registration mark sensor The offset value for obtaining the barcode detection timing by the barcode reader based on the time point. The data setting means for setting the transmission section of the detection timing signal, the bar code detection value input from the bar code reader in the transmission section of the detection timing signal, and the set value in the product type setting means are compared. It is characterized in that it comprises a determination means for outputting the determination result, and a control means for issuing an automatic stop of the packaging machine, an abnormal alarm or the like according to the output value from the determination means.

[0007]

With respect to the film fed out from the film roll set at the loading position and transferred, the bar code provided at every predetermined pitch in the transfer direction is detected by the bar code reader during the transfer. The detection value of the barcode detected by the barcode reader and the set value preset by the product type setting means are compared and determined by the determining means. When this determination means determines that the detected value and the set value do not match, the output value corresponding to the determination result is output to the control means, and the control means automatically stops the packaging machine, issues an alarm, etc. Emit.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Next, a set film detecting device in a film packaging machine according to the present invention will be described below with reference to preferred embodiments.

[0009]

[First Embodiment] FIG. 1 shows a schematic structure of a horizontal bag making and filling machine 10. A supply conveyor 14 for supplying articles 12 one by one comprises an endless chain 16 and attachments 18 provided at a predetermined pitch. , 1 by each attachment 18
It is configured such that one piece of 2 is pushed at a predetermined interval and continuously supplied to the bag making machine 20 located on the downstream side. The supply conveyor 14 is driven by a motor M ₁ which is rotationally driven and controlled at a predetermined speed by a speed changing means (not shown) such as an inverter so that the article supply speed is preset according to the packaging speed. Further, the supply conveyor 14 detects the amount of rotation of the rotary shaft of the conveyor 14 and attaches the attachment 18
An encoder E that generates a timing pulse related to the supply origin position of each attachment 18 when each of the articles 12 delivered downstream in the above is transferred to the film 24 formed into a tubular shape by the bag making machine 20 and the current position of the attachment 18.
₁ is provided. Then, the timing pulse signal from the encoder E ₁ is input to the control device 64 as the control means of the packaging machine 10, and this timing pulse signal is used as the reference timing for synchronously operating the respective operating mechanisms of the packaging machine. . As the drive motor of the supply conveyor 14, a motor such as a servo motor that controls gear shifting may be used.

Roll holder of the packaging machine 10 (loading position)
22 is a bar code 40 corresponding to the type of the article 12
(Refer to FIG. 2) A film roll 26, in which a film 24 printed in a roll at a predetermined pitch in the film transfer direction corresponding to the packaging size is wound around, is detachably set, and a film pulled out from the roll 26. The film 24 is pinched by a pair of feeding rollers 28, 28 constituting the film transfer mechanism 27, and is fed toward the bag making machine 20. Then, the film 24 formed into a tubular shape through the bag making device 20 has the overlapping surface of the end edge portion in the longitudinal direction thereof compressed by a pair of feed rollers 30 and 30 (only one is shown) on the downstream side. And is center-sealed by a pair of sealing rollers 32, 32 (only one is shown).

Here, the control device 64 controls the roller group by the servo motor M ₂ so that the film transfer speed obtained from the film cutting pitch and the packaging speed preset by the product type setting means 56 described later is obtained. 28, 30,
It is set to issue a control signal for rotationally driving 32. An encoder E ₂ is attached to this servo motor M ₂ ,
The servomotor M ₂ is servo-controlled by inputting the rotation pulse signal of the encoder E _{2 to} the control device 64. Also, the encoder E in the supply conveyor 14
_With the position data of the attachment 18 based on the rotation pulse signal from ₁ and the film transfer position obtained by detecting the rotation pulse signal of the encoder E ₂ , the printing position registration register for the film with print specified by the film cut pitch is used. The mark 50 (see FIG. 7) or the bar code 40 attached to the film 24 is detected by a registration mark sensor 52 or a timing sensor 48, which will be described later, and the servo motor M ₂ is accelerated and decelerated in response to the detection signal to be described later. Printing position alignment control is performed to align with the end seal / cut positions of the seal bodies 36, 36 in the end seal mechanism 34, and the articles 12 transferred by the supply conveyor 14 are tubular in the bag making machine 20. The control device 64 controls the position of the formed film 24 so that the film 24 is aligned and fed at a required position. To the servomotor M ₂ via a motor driver (not shown), which is to emit synchronous drive control signals for synchronizing the position and speed of the attachment 18 of the feed conveyor 14.

The tubular film 24 is provided behind the sealing rollers 32, 32 in a state where the articles 12 supplied at predetermined intervals by the attachments 18 of the supply conveyor 14 are accommodated inside the film 24. It is sent toward the disposed end seal mechanism 34. This end seal mechanism 3
Reference numeral 4 is composed of a pair of seal bodies 36, 36 facing each other vertically with a horizontal transport level of the tubular film interposed therebetween. Then, the sealing bodies 36, 36 rotate in mutually opposite directions, and the tubular film is laterally sealed and cut at positions before and after sandwiching the article 12, thereby obtaining a so-called pillow type package. To be The seal bodies 36, 36 of the end seal mechanism 34 are the same as the supply conveyor 1
Based on the position data of the attachment 18 based on the rotation pulse signal from the encoder E ₁ in 4, the control device 64 outputs a control signal for rotationally driving the servo motor M ₃ via a motor driver (not shown). Further, an encoder E ₃ is attached to the servomotor M ₃ , and an end seal origin for generating an origin position signal when the seals 36, 36 mesh with each other in a rotation system related to the rotation of the seals 36, 36. A sensor S ₁ is provided. By inputting the rotation pulse signal of the encoder E ₃ and the origin signal from the end seal origin sensor S ₁ to the control device 64, the servo motor M ₃ is servo-controlled and the position of the attachment 18 of the supply conveyor 14 is controlled. And synchronous drive control is performed in synchronism with the speed. Then, the pair of seal bodies 36, 36 are engaged with each other at the timing when the scheduled end seal position of the tubular film arrives at the seal position of the end seal mechanism 34, and the film is laterally sealed and cut.

As the seal members 36, 36, in addition to the rotary seal mechanism shown in the drawing, horizontally moving synchronously along the feeding direction of the tubular film, sealing and cutting, and then drawing an arc. A seal mechanism of a type that moves up and down and moves horizontally can be preferably used.

While the film 24 is being pulled out from the film roll 26 and transferred to the bag making machine 20, the bar code 40 printed at a predetermined pitch on the film 24 can be detected according to the packaging size. A bar code reader 42 is provided. This barcode reader 4
2 is configured to output the detection signal of the barcode 40 to the barcode collating means 44. In addition, the bar code collating means 44 detects the detection signal from the bar code reader 42.
Receiving the (detection value), various signals corresponding to the detection signal are provided to the determination unit 46 as a determination unit provided in the control device 64.
It is set to output to. The detection signal from the barcode reader 42 is set so as to be input to the determination unit 46 only in a section in which a detection timing signal (described later) is transmitted from the control device 64. That is,
In the bar code collating means 44, prescribed bar code data for each product type of the article 12 to be packaged is stored in advance for a plurality of product types, and coincides with the actual detection value of the bar code detected by the bar code reader 42. If there is specified bar code data, a signal corresponding to the specified bar code data is output to the determination unit 46, and the stored specified bar code data matches the detected value of the actual bar code. Is not present, the NG signal is set to be output to the determination unit 46. Further, when the barcode 40 cannot be read by the barcode reader 42 due to printing failure or the like, no signal is set to be output.

Registration and storage of specified bar code data corresponding to each product type in the bar code collating means 44 is carried out by actually setting a specified film having the bar code 40 corresponding to each product type in the packaging machine 10. , The film transfer mechanism 2
7 is operated to register / store the specified film in the bar code registration mode in which the specified film is transferred through the position where the bar code reader 42 is disposed. Further, a handy bar code reader in which a list in which a plurality of bar codes 40 corresponding to each type are printed is connected to a bar code collating means 44.
It can also be read and registered / stored by (not shown).
In addition, in the case of registering and storing the specified film by actually passing and passing the position where the bar code reader 42 is disposed, at least the film transport mechanism 2 of the packaging machine 10 is used.
If only 7 is operated and the film is transferred at a low speed for registration and storage, reliable registration and
Memory work can be performed. However, this registration and storage work is
This can be performed before the factory is shipped from the machine maker, and after delivery to the user, it can be handled only when the type of the article 12 is changed or added.

A timing sensor 48 capable of detecting passage of the bar code 40 attached to the film 24 is arranged at a position spaced a predetermined distance upstream from the position where the bar code reader 42 is arranged in the film transfer direction. It is set up. Then, the detection signal of the barcode 40 by the timing sensor 48 is input to the control device 64.

The control device 64 shown in FIG. 1 determines the quality of the bar code 40 based on the signal output from the bar code collating means 44, the supply conveyor 14, the film transfer mechanism 27 and the end. The storage unit 54 is provided as a storage unit that stores control data of each operating mechanism of the seal mechanism 34. Further, by performing key operation with the product type setting means 56 connected to the control device 64, each product type number, product name registration, film cutting pitch (same as bar code attachment pitch), packaging speed, offset value, etc. Various data necessary for synchronizing the operating mechanism can be set and input in the storage unit 54. Note that the storage unit 54 can register and store the registration for each product type of a plurality of types of articles 12 by the key operation, and whenever the specifications are changed, numerical data or the like is input by the key operation. . In addition, the storage unit 5
In FIG. 4, the data value corresponding to each specified bar code data registered and stored in the bar code collating means 44 (actually the data value corresponding to the output signal from the bar code collating means 44) is the product type. It is set and input by the setting means 56 and registered and stored for each product type.

According to the output value output based on the determination result of the determination section 46, the control device 64 gives an alarm together with an abnormal display on the display means 58 such as a display connected to the device 64. It is set to issue a buzzer or the like to give an abnormal alarm or automatically stop the operation of the packaging machine 10. It should be noted that, when the product type is selected, the display means 58 is also configured to display various data stored in the storage unit 54 such as the number, the product name, and the cut pitch corresponding to the product type. Further, the control device 64 relates to a defective product rejecting device (not shown) arranged on the downstream side of the packaging machine 10,
It is configured such that the package wrapped with the film 24, which is determined by the determination unit 46 to be an abnormal barcode, is shifted and discharged out of the line as a defective product.

A data setting unit 66, which is a data setting means provided in the control device 64, obtains the detection timing of the bar code 40 by the bar code reader 42 with reference to the detection time of the timing sensor 48. When the offset value (in the embodiment, the value corresponding to the distance between the timing sensor 48 and the barcode reader 42) and the value corresponding to the transmission section of the detection timing signal of the barcode 40 described later are input by the product type setting means 56. , And functions to set and store the transmission section of the offset value and the detection timing signal as the number of pulses corresponding to the film transfer amount. That is, based on the detection signal from the timing sensor 48, the number of pulses (set pulse number) transmitted from the encoder E ₂ until the barcode 40 detected by the sensor 48 reaches the detection position of the barcode reader 42. Is set and stored as a value corresponding to. Further, the control device 64 includes the pulse counter 38, receives the detection signal from the timing sensor 48, subtracts the pulse transmitted from the encoder E ₂ from the set pulse number, and when the count value becomes “0”, It is set to transmit a detection timing signal of the barcode 40 by the barcode reader 42 (see FIG. 3). The detection timing signal is transmitted for a predetermined section that is set and input according to the length of the barcode 40 in the film transport direction, and the detection signal of the barcode 40 by the barcode reader 42 is input during this period. . Although the counter outputs the signal when the count value is "0" after performing the subtraction count, the counter may perform the addition count until the set pulse number is reached.

[0020]

[Operation of First Embodiment] Next, the operation of the set film detecting apparatus according to the embodiment will be described below.

In the packaging machine 10, when a value corresponding to the transmission section of the detection timing signal, which is determined according to the offset value and the bar code length in the film transport direction, is input, the control unit 64 is operated. The data setting unit 66 sets and stores the offset value and the detection timing of the barcode 40 as a value corresponding to the number of pulses (set pulse number) transmitted from the encoder E ₂ . Further, it is assumed that the bar code collating means 44 has registered and stored a plurality of specified bar code data corresponding to the types of the articles 12 to be packed in the packing machine 10.

[Regarding Control During Set Operation] The operator sets the roll 26 of the film 24 having the bar code 40 corresponding to the type of the article 12 to be packaged in the roll holder 22 and feeds the film. After the roller 28, the bag making device 20, the feed roller 30, and the sealing roller 32 are set so as to be transferable to the downstream side, the packaging machine 10 is set for the setting corresponding to the packaging type. The setting means 56 is used to set and input the product type number, product name registration, film cutting pitch, packaging speed, and other various operation data necessary for synchronization of each operating mechanism of the packaging machine. With respect to the types of articles that have been set and registered in advance, setting data corresponding to each type stored in the storage unit 54 is read only by selecting the type number.

The operator synchronously drives each operating mechanism of the packaging machine 10 for the type of the article 12 currently selected by the type setting means 56 (speed of the feeding conveyor 14, film feeding in the film transfer mechanism 27). (Speed, speed change control of the seal bodies 36, 36 of the end seal mechanism 34, and rotational driving of the motors M ₁ , M ₂ , M ₃ provided in each mechanism so that these three mechanisms are driven in phase) For the initial setting operation, the set operation of the packaging machine 10 is performed. For the packaging type registered and set in advance, the operator selects a desired type by the type setting means 56 and then operates the start switch (not shown) of the packaging machine 10. Then, the packaging machine 10 automatically shifts to the set operation mode, and the motor M of each operating mechanism of the packaging machine 10 is automatically changed.
₁ , ₁ , M ₂ , and M ₃ are rotated at a low speed, and the synchronization alignment is completed. However, the set operation mode may be executed after the set operation mode is separately selected by a key operation or the like.

During the low speed film transfer of the film transfer mechanism 27 in the setting operation, the bar code 40 attached to the film 24 drawn from the set film roll 26 is first detected by the timing sensor 48. With this detection signal, the pulse counter 38 of the control device 64 counts the pulses from the encoder E ₂ , and outputs a detection timing signal when the count value reaches the set pulse number corresponding to the offset value (see FIG. 3). . The bar code reader 42 detects the bar code 40 detected by the timing sensor 48, and outputs the detection signal to the bar code collating means 44. The detection value of the bar code 40 input to the bar code collating means 44 during transmission of the detection timing signal is collated with the prescribed bar code data of a plurality of types registered and stored in the collating means 44 in advance and coincides. If there is data, a signal corresponding to the specified bar code data is output to the determination unit 46.

In the judging section 46, the signal corresponding to the regulated bar code data outputted from the bar code collating means 44 is compared with the set data value of the currently set type, and if the both match. If determined, control device 6
In No. 4, the packaging machine 10 continues the set operation without issuing an abnormal signal or the like, and when the operation is completed, the packaging machine 10 is temporarily stopped to be in a state in which continuous operation is possible.

On the other hand, when the determination unit 46 determines that the detected value of the bar code 40 and the set value are different, the determination unit 46 outputs an abnormal signal to cause the controller 6 to operate.
Reference numeral 4 indicates an abnormality on the display means 58 and sounds an alarm buzzer or the like to inform the operator that the set film 24 is not the target. Further, the set operation is interrupted and the packaging machine 10 is automatically stopped.

During the section in which the detection timing signal of the bar code 40 is transmitted, the bar code 40 that does not match any of the prescribed bar code data of a plurality of types registered and stored in the bar code collating means 44 in advance is detected. When the value is input, the collating means 44 outputs an NG signal to the judging section 46. Further, the bar code reader 42 cannot read the bar code 40 due to defective printing of the bar code 40 attached to the film 24, and the bar code collating means 44 is provided to the bar code collating means 44 during the section in which the detection timing signal is transmitted. When the detected value of the bar code 40 is not input, the collating means 44 does not send an output signal. Thus, when the NG signal is input to the determination unit 46 or no signal is input during the section in which the detection timing signal is transmitted, the determination unit 46 outputs an abnormal signal. As a result, in the same manner as described above, the control device 64 displays an abnormality on the display means 58 and sounds an alarm buzzer or the like to confirm that the set film 24 is not the target or is a defective print. Inform the person. In addition, the set operation is interrupted as needed to automatically stop the packaging machine 10.

[Control during Continuous Operation] When the above-described set operation is completed and the starter switch (not shown) is operated, the packaging machine 10 shifts to the continuous operation mode in which normal packaging of articles is performed. The mechanism is continuously operated in synchronization with a preset packaging speed based on the data set by the product type setting means 56. During this continuous operation, the bar code 40 attached to the film 24 pulled out from the film roll 26 is turned on by the timing sensor 48.
And at the timing of passing the barcode reader 42, the same control as the detection control in the set operation is performed.

Then, when there is no output from the bar code collating means 44 during the section in which the detection timing signal of the bar code 40 is transmitted, the judging section 46.
Determines that the bar code 40 is defectively printed, and outputs an abnormal signal to the control device 64. At this time, the control device 64 controls the defective product rejecting device to move the package, in which the product 12 is packaged with the film 24 having the bar code 40 that is determined to be defective printing, as a defective product to the outside of the line. Shift out.

[0030]

[Modification of First Embodiment] FIG. 4 shows a modification of the first embodiment, in which the detection signal from the bar code reader 42 is directly input to the determination unit 46 of the control device 64. It is configured. That is, the determining unit 46 also functions as the barcode collating means 44, and the determining unit 46 previously stores and stores the prescribed barcode data of a plurality of types in the barcode registration mode. Then, the detected value of the barcode 40 input to the determination unit 46 during the section in which the detection timing signal is transmitted is compared with the determined barcode data of a plurality of types registered and stored in advance and determined, The output value according to the determination result is output to the control device 64. In this case, the determination unit 46 outputs an NG signal indicating that the bar code 40 cannot be read when the bar code 40 cannot be read.

[0031]

[Second Embodiment] FIG. 5 shows a second embodiment of the present invention, which is a film for automatically connecting the end portion of the old film 24a currently used and the tip portion of the new film 24b used next time. The automatic connection device 60 is provided. Further, two roll holders 22 for setting the film rolls 26 are provided, but other configurations are basically the same as those of the first embodiment described above. However, in the second embodiment, a film end detection sensor 62 for detecting the end portion of the film 24 in use is arranged in the vicinity of the arrangement position of each roll holder 22, and the sensor 62 detects the film end portion. A predetermined time after the detection (when the film end reaches the connection position of the automatic connection device 60), the automatic connection device 60 operates and the printing positions of the front and rear ends of the old and new films match. The timing is set so that the connection is made in the open state. Further, in the control device 64, the value corresponding to the distance between the end edge of the old film and the timing sensor 48 at the connection position of the automatic connection device 60 (the timing when the connection position reaches the timing sensor 48) is set by the product type setting means 56. When input, the value is set and stored as the set pulse number (the pulse number of the encoder E ₂ ) corresponding to the film transfer amount. As a result, the timing at which the leading end portion of the new film 24b, which does not include the connection cost of the film connection, passes the timing sensor 48, and the bar code detection control similar to the control during the set operation described above is performed after the timing. Is set to

[Control When Film Connection is Performed During Continuous Operation] While the continuous operation using the old film 24a is being performed, the worker rolls the roll 26 of the new film 24b to be used next time on the packaging machine 10. And the leading end of the new film 24b pulled out from the roll 26 is set at the connection position in the automatic connection device 60.

The film end detection sensor 62 detects the trailing end of the old film 24a, and a predetermined time after the trailing end is detected, the automatic connecting device 60 is activated, and the old and new film 24 is detected.
The connection of a and 24b is made, and the new film 24b is transferred toward the timing sensor 48. The control device 64
The pulse counter 38 of 1 counts the pulses from the encoder E ₂ of the film transfer mechanism 27 from the time when the old and new films 24a and 24b are connected by the automatic connection device 60. Then, the pulse counter 38
After the leading edge of the new film 24b after the connection cost is subtracted from the set pulse number corresponding to the film transfer amount passing through the timing sensor 48, and after the count value becomes “0”, the control during the set operation is performed. Similar bar code detection control is performed. That is, the first bar code 40 after the film is transferred by the set number of pulses is detected by the timing sensor 48, and thus the bar code reader 42.
The bar code 40 is detected by the new film 24b
Determines whether or not the product corresponds to the target product type, and if they do not match, an abnormal alarm is issued and the packaging machine 10
Is automatically stopped, and when defective printing of the barcode 40 is detected, the defective product is shifted and discharged out of the line.

[0034]

[Modification of Second Embodiment] In the second embodiment, the detection signal from the bar code reader 42 is used as the bar code collating means 4.
However, as in the modification of the first embodiment, as shown in FIG. 6, the bar code collating means 44 is omitted and the detection signal is directly input to the determination unit 46 of the control device 64. You may comprise.

[0035]

[Modification] The timing sensor 48 of the above-described embodiment is the barcode 40 by the barcode reader 42.
The reference signal for obtaining the detection timing is output, but as the output means of such a reference signal, the following may be adopted. For example, as shown in FIG. 7, when the film 24 is printed with a registration mark 50 for printing a pattern or the like and for positioning control, or when only the barcode 40 and the registration mark 50 are printed, the film 24 is A registration mark sensor 52 may be provided at a position where the attached registration mark 50 can be detected, and a reference signal may be output by detecting the registration mark 50 with the registration mark sensor 52. That is, it is set as an offset value corresponding to the amount of film transfer that the bar code 40 moves to the detection position of the bar code reader 42 after the registration mark sensor 52 detects the registration mark 52. Even in the case of the film 24 on which the registration mark 50 is printed as shown in FIG. 7, when the timing control is performed only by detecting the bar code, the passage of the bar code 40 can be detected separately from the registration mark sensor 52. By providing such a timing sensor 48, it is possible to perform the same control as a film without a registration mark.

In the above embodiment, the pulse counted in the transmission section of the offset value and the detection timing signal of the bar code 40 is the transmission pulse from the encoder E ₂ of the film transport mechanism 27, but it is provided in the control section 38. It is also possible to use a transmission pulse from the reference clock pulse oscillator or a set pulse using a pulse signal or the like given to each operating mechanism based on the reference clock pulse. Further, an encoder for detecting a pulse transmitted from an encoder E ₁ provided on the supply conveyor 14 which is an operation mechanism used as a synchronization reference of the packaging machine 10 and a rotation of the feeding roller 28 is separately provided, and the encoder from the encoder is provided. A setting pulse using a drive pulse signal such as a transmission pulse may be used. It is also possible to separately provide a timer having a counting function to start counting by the reference signal from the timing sensor 48 or the registration mark sensor 52, and set the offset value according to the film transfer speed by the timer. . Further, the offset value may be set by other setting means such as a volume type setting switch.

In the first embodiment, the quality of the film 24 set in the packaging machine 10 is determined in the set operation mode. However, if necessary, it is determined at the start of the continuous operation mode after the completion of the set operation. You may

The packaging machine according to the embodiment has been described with respect to the structure in which each mechanism of the horizontal bag-making filling machine is individually provided with a motor, but the present invention is not limited to this, and each mechanism is synchronously driven by a single motor. In the film packaging machine, at least the product type setting means may be of a type that can be set by a changeover switch of a product type number corresponding to each product type.

Further, in the embodiment, the supply conveyor is used as a reference for synchronization of each operating mechanism in the packaging machine, but either the end seal mechanism or the film transfer mechanism may be used as a reference for synchronization, and the drive of the reference mechanism is performed. It is also possible to use an encoder pulse provided in the system as the setting pulse. Further, the reference clock pulse may be used as a reference for synchronization of each operating mechanism.

[0040]

As described above, according to the set film detection device in the film packaging machine of the present invention, the bar code attached to the film is detected by the bar code reader provided on the way of transferring the film of the packaging machine. Determine whether or not the barcode corresponds to the type of packaged product in question, and if the film set by the worker does not match the type of product to be packaged, the worker is notified of the abnormality. By notifying, you can prevent packaging with the wrong film. In other words, a product with the wrong film packaging will not be shipped to a supermarket or the like, and the occurrence of complaints can be prevented.

Further, by installing a bar code reader during the transfer of the film, even if there is a printing error or a printing defect in the bar code attached to the film being transferred, this can be detected. Inform the operator of the abnormality,
Alternatively, it is possible to prevent a defective product from being mixed by shifting and discharging the packaging body, which is packaged with the film with the barcode determined to be abnormal, out of the line.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram showing a horizontal bag-making filling machine in which a set film detection device according to a first embodiment of the present invention is adopted.

FIG. 2 is an explanatory diagram showing a plain film with only a barcode attached.

FIG. 3 is an explanatory diagram showing a relationship between a detection signal of a timing sensor, an offset value, and a barcode detection timing.

FIG. 4 is a schematic configuration diagram showing a horizontal bag-making filling machine in which a set film detection device according to a modified example of the first embodiment is adopted.

FIG. 5 is a schematic configuration diagram showing a horizontal bag-making filling machine in which a set film detection device according to a second embodiment of the present invention is adopted.

FIG. 6 is a schematic configuration diagram showing a horizontal bag-making filling machine in which a set film detection device according to a modification of the second embodiment is adopted.

FIG. 7 is an explanatory diagram showing a film on which a pattern or the like is printed and a registration mark and a bar code are attached.

[Explanation of symbols]

10 Horizontal Bag-Making and Filling Machine 12 Article 14 Supply Conveyor (Operating Mechanism) 20 Bag-Making Machine 24 Film 24a Old Film 24b New Film 26 Film Roll 27 Film Transfer Mechanism (Operating Mechanism) 34 End Seal Mechanism (Operating Mechanism) 38 Pulse Counter 40 Bar code 42 Bar code reader 44 Bar code collating means 46 Judgment section (judgment means) 48 Timing sensor 50 Registration mark 52 Registration mark sensor 54 Storage section (storage means) 56 Variety setting means 60 Film automatic connection device 64 Control device
(Control means) 66 Data setting section (Data setting means) E ₁ encoder E ₂ encoder (Signal generating means)

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Naotaka Mizutani, Naoki Takashi 4-380, Nakaotai, Nishi-ku, Nagoya, Aichi Fujikikai Co., Ltd., Nagoya Plant (72) Inventor, Mitsuru Koike 4-380, Nakaodai, Nishi-ku, Nagoya, Aichi Local Fujikikai Co., Ltd. Nagoya factory (72) Inventor Kazuhiro Hanaki 4-380 Nakaodai, Nishi-ku, Nagoya, Aichi Fujikikai Co., Ltd. Nagoya factory

Claims (12)

[Claims] 1. A film roll (2) formed by winding a film (24) having a bar code (40) attached at a predetermined pitch in the transfer direction.
6) is set in the loading position, in a packaging machine for producing a package by feeding the film (24) from the film roll (26) by the film transport mechanism (27), the film (24) produced by the film transport mechanism (27). ), Which is provided on the way of transfer of the bar code (4) attached to the film (24).
0) a bar code reader (42) capable of detecting the bar code reader (42), the bar code reader (42) is disposed on the film (24) at a predetermined distance upstream from the position where the bar code reader (42) is arranged. A timing sensor (48) that can detect the passage of the barcode (40), and a type setting means (56) that can switch and set the setting value corresponding to the specified barcode for each type of packaged article (12). Data setting means for setting the offset value for obtaining the detection timing of the barcode (40) by the barcode reader (42) and the transmission section of the detection timing signal with reference to the detection time point of the timing sensor (48) ( 66), and a barcode detection value input from the barcode reader (42) in the transmission section of the detection timing signal,
Judgment means (46) that compares the set value in the product type setting means (56) and outputs the judgment result, and in accordance with the output value from the judgment means (46), the automatic packaging machine (10) A set film detection device in a film packaging machine, comprising a control means (64) for issuing a stop or abnormal alarm. 2. A film roll (2) formed by winding a film (24) having a bar code (40) attached at a predetermined pitch in the transfer direction.
6) is set in the loading position, in a packaging machine for producing a package by feeding the film (24) from the film roll (26) by the film transport mechanism (27), the film (24) produced by the film transport mechanism (27). ), Which is provided on the way of transfer of the bar code (4) attached to the film (24).
A bar code reader (42) capable of detecting 0), a registration mark sensor (52) for detecting registration marks (50) printed on the film (24) at a predetermined pitch in the transfer direction, and an article to be packaged Product type setting means (56) capable of switching setting values corresponding to the specified bar code for each product type of (12), and the bar code reader (42) based on the detection time of the registration mark sensor (52) By the offset value for obtaining the detection timing of the barcode (40) and the data setting means (66) for setting the transmission section of the detection timing signal, and input from the barcode reader (42) in the transmission section of the detection timing signal The detected barcode value,
Judgment means (46) that compares the set value in the product type setting means (56) and outputs the judgment result, and according to the output value from the judgment means (46), the automatic stopping or abnormality of the packaging machine A set film detection device in a film packaging machine, comprising a control means (64) for issuing an alarm or the like. 3. A set operation mode for initial setting for synchronously driving each operating mechanism (14, 27, 34) in the packaging machine corresponding to the type setting of the article (12), and the article after the set operation. The continuous operation mode for packaging is set, and the bar code (40) detected by the bar code reader (42).
The detection judgment as to whether or not the detection value of (1) coincides with the setting value of the product type setting means (56) is carried out during the low speed transfer of the film by the film transfer mechanism (27) in the set operation mode.
Alternatively, the set film detection device in the film packaging machine according to the item 2. 4. The determination means (4) in the continuous operation mode.
If it is determined that the barcode (40) in 6) is unreadable due to defective printing, etc., the control means (6)
4. The film according to claim 3, wherein an alarm is issued in 4) and the package wrapped with the film (24) having the bar code (40) in which an abnormality is detected is controlled to be shifted out of the line. Set film detection device in packaging machine. 5. The control means (64) comprises an article (1) to be packaged.
Each operating mechanism in the packaging machine (10) corresponding to each type of 2)
(14, 27, 34) operation data and a bar code data corresponding to each product type is provided with a storage means (54), the bar code data to the storage means (54) registration / storage is
When the roll (26) of the film (24) with the bar code (40) corresponding to each type of (12) is set to the loading position, and the film transfer mechanism (27) transfers the film (24) at a low speed. The set film detection device in a film packaging machine according to claim 1, wherein the set film detection device is used in a bar code registration mode in which a bar code (40) is actually detected by a bar code reader (42). 6. The film automatic connection device for automatically connecting the film transfer mechanism (27) to the end of the old film (24a) currently in use and the front end of the new film (24b) to be used next time. (60), the control means (64), based on the connection position of the film automatic connection device (60), the tip of the new film (24b) after the old and new film connection allowance of the timing sensor (48) Or, in accordance with the timing of passing through the registration mark sensor (52) and the bar code reader (42), the bar code detection of the bar code reader (42) and its detection value and the set value in the product type setting means (56) The set film detection device in the film packaging machine according to any one of claims 1 to 5, wherein the set film detection device is controlled so as to carry out the comparison judgment. 7. A signal generating means (E ₂ ) for transmitting a pulse signal corresponding to a film transfer amount, and a pulse counter (38) for counting the pulses transmitted from the signal generating means (E ₂ ) are provided. Control means (64), by the pulse count value by the pulse counter (38) corresponding to the transmission interval of the offset value and the detection timing signal, the barcode detection in the barcode reader (42), and its detection value and The set film detection device in a film packaging machine according to any one of claims 1 to 6, wherein the set film detection device is controlled to perform a comparison judgment with a set value in a product type setting means (56). 8. The signal generating means is means for transmitting an operation pulse signal given to each operation mechanism (14, 27, 34) based on an oscillation pulse from the reference clock pulse oscillator or the oscillator. A set film detection device in the film packaging machine described. 9. The signal generating means is provided for each operating mechanism (14, 2).
7, 34) Encoder (E ₁ ) or film transfer mechanism (27) provided in the rotary system of the operating mechanism (14) that is the reference for synchronization
9. The set film detection device in a film packaging machine according to claim 8, wherein the set film detection device is an encoder (E ₂ ) provided in a drive system for detecting a film transfer amount. 10. The specified bar code for each type of the article (12) is registered and stored, and the stored specified bar code data and the bar code (40) detected by the bar code reader (42). A bar code collating means (44) for collating the detected value and outputting the collation result to the judging means (46) of the control means (64) is provided, and the judging means (46) is the bar code collating means (44). ) And the set value of the product type setting means (56) are compared, and if they are different, a signal for issuing an automatic stop of the packaging machine (10) or an abnormality alarm is output to the control means (64). The set film detection device in the film packaging machine according to claim 1, which is set. 11. If there is no signal input from the bar code collating means (44) during transmission of the detection timing signal, the judging means (46) cannot read due to defective printing of the bar code (40). 11. The set film detection device in a film packaging machine according to claim 10, wherein the set film detection device is set so as to determine that there is and output a required signal to the control means (64). 12. The film packaging machine uses a bag making machine (20) to tubularly form a film (24) delivered from a film roll (26), and a supply conveyor (14) is provided in the tubular film.
In the horizontal bag-making and filling machine, which supplies the article (12) at predetermined intervals, and performs horizontal sealing and cutting before and after sandwiching the article (12) in the tubular film, the timing sensor (48) or the cash register. The mark sensor (52) and the bar code reader (42) are provided during the transfer of the film (24) from the film roll (26) to the bag making machine (20). The set film detection apparatus in the film packaging machine in any one.