WO2017090317A1

WO2017090317A1 - Bag-making and packaging machine

Info

Publication number: WO2017090317A1
Application number: PCT/JP2016/079344
Authority: WO
Inventors: 多賀　圭司; 輝石野
Original assignee: 株式会社イシダ
Priority date: 2015-11-27
Filing date: 2016-10-03
Publication date: 2017-06-01
Also published as: JP6902274B2; JPWO2017090317A1

Abstract

Provided is a highly reliable bag-making and packaging machine with which it is easy to prevent a lapse in checking for the presence of a seam in films. A bag-making and packaging machine (100) packages an article in a manufactured bag. This bag-making and packaging machine is provided with a film roll holding part (80), a conveyor belt (40), a seam detection unit (210a), and a counting unit (210b). The film roll holding part holds a film roll, which is a roll of a film that is to be made into a bag. A film conveying part conveys the film unrolled from the film roll. The seam detection unit detects seams in the film being conveyed by the film conveying part. The counting unit counts the number of seams detected.

Description

Bag making and packaging machine

The present invention relates to a bag making and packaging machine.

A film that is a bag material wound around a film roll used in a bag making and packaging machine may include a seam between the film and the film for the convenience of manufacturing the film roll. Since a bag made of a film containing such a seam cannot be used for packaging, the seam portion of the film is removed from the production line.

Patent Document 1 (Japanese Patent Laid-Open No. 10-175619) discloses that a seam between a film and a film is detected by a detection unit, and a bag made using the seamed film is automatically removed from the production line. Has been.

However, there is a case where a seam detection error may actually occur in the detection unit, and as a result, the bag with the seam may flow along the production line together with the normal bag. Therefore, when using a configuration such as Patent Document 1 (Japanese Patent Application Laid-Open No. 10-175619), for example, the number of bags made of film including a seam removed from the production line by the operator, By checking whether the number of seams of the film contained in the film roll provided by the roll manufacturer is the same, it is possible to prevent a bag using the seam from being shipped with a normal bag. Yes. However, when such an operation is performed, the operator's work load is large, and check is performed manually, and there is a possibility of check omission.

An object of the present invention is to provide a highly reliable bag-making packaging machine that can easily prevent a check leak of a seam of a film.

The bag making and packaging machine according to the first aspect of the present invention is a bag making and packaging machine for packaging an article in a bag to be made. The bag making and packaging machine includes a film roll holding unit, a film transport unit, a detection unit, and a counting unit. The film roll holding unit holds a film roll around which a film serving as a bag is wound. A film conveyance part conveys the film drawn | fed out from a film roll. A detection part detects the joint of the film conveyed by the film conveyance part. The count unit counts the number of detected seams.

In the bag making and packaging machine according to the first aspect of the present invention, since the number of detected seams is counted, it is possible to easily prevent check leakage of the seams of the film.

The bag making and packaging machine according to the second aspect of the present invention is the bag making and packaging machine according to the first aspect, and further includes an output unit. The output unit performs output related to the number of joints counted by the count unit.

In the bag making and packaging machine according to the second aspect of the present invention, since the output relating to the counted number of seams is performed, it is possible to easily prevent check omission of the seams of the film.

The bag making and packaging machine according to the third aspect of the present invention is the bag making and packaging machine according to the second aspect, and further includes an input unit for inputting a designated number of seams.

In the bag making and packaging machine according to the third aspect of the present invention, output based on the designated number of seams provided by the film roll manufacturer or the like can be performed.

The bag making and packaging machine according to the fourth aspect of the present invention is the bag making and packaging machine according to the second aspect, and further includes a reading unit that reads information related to the designated number of seams attached to the film roll.

In the bag making and packaging machine according to the fourth aspect of the present invention, output based on the designated number of seams provided by the film roll manufacturer or the like can be performed.

The bag making and packaging machine according to the fifth aspect of the present invention is the bag making and packaging machine according to the third or fourth aspect, wherein the output unit includes the number of seams counted by the counting unit and the designated number of seams. Is not output, an error is output as an output related to the counted number of joints.

In the bag making and packaging machine according to the fifth aspect of the present invention, when the counted number of seams does not match the designated number, this error is notified to the operator or the apparatus is stopped based on the error output. Can be. Therefore, it is possible to easily prevent a check leak of the seam of the film. Moreover, it is possible to take an early response to the abnormality that has occurred.

The bag making and packaging machine according to the sixth aspect of the present invention is the bag making and packaging machine according to any one of the third to fifth aspects, and the output unit includes a display unit. The display unit displays the counted number of joints as an output related to the counted number of joints, and further displays the designated number of joints simultaneously with the counted number of joints.

In the bag making and packaging machine according to the sixth aspect of the present invention, the operator judges at a glance whether the count number of the seam matches the designated number, and if there is no match, there is a difference. be able to.

The bag making and packaging machine according to the seventh aspect of the present invention is the bag making and packaging machine according to any one of the first to sixth aspects, further comprising a printing device and a printing check device. The printing device prints information on a print area of the film conveyed by the film conveyance unit. The print check device checks the print state of the print area. The print check device detects a print area in a first state in which printing by the printing device cannot be identified. When the count check unit detects that one print area is in the first state, the count unit does not detect a seam at a position corresponding to the print area detected as being in the first state. Also count the number of seams.

In the bag making and packaging machine according to the seventh aspect of the present invention, the film roll is subjected to the process of setting the print area corresponding to the seam to the first state, so that even if the detection unit cannot detect the seam. The seam can be counted without omission.

In the bag making and packaging machine according to the present invention, since the number of detected seams is counted, it is possible to easily prevent check leakage of the seams of the film.

It is a schematic block diagram of the bag making packaging machine which concerns on one Embodiment of this invention. It is a block diagram of the bag making packaging machine which concerns on FIG. It is the figure which drew an example of the film currently wound by the film roll used with the bag making packaging machine which concerns on FIG. It is a flowchart of the process of the output regarding the count of the number of the seams of a film, and the number of seams by the bag making packaging machine which concerns on FIG. It is a flowchart of the process of the output regarding the count of the number of the seams of a film by the bag making packaging machine which concerns on the modification A, and the number of seams. It is a schematic block diagram of the bag making packaging machine provided with the reading part which concerns on the modification G.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. The following embodiments are specific examples of the present invention and do not limit the technical scope of the present invention. The following embodiments can be modified as appropriate without departing from the scope of the invention.

In the following description, words indicating directions such as front (front), back (back), up, and down may be used. These directions mean the directions shown in FIG. 1 unless otherwise specified. In the following description, the expressions “upstream” and “downstream” may be used, but unless otherwise specified, “upstream” and “downstream” are based on the transport direction of the film F.

(1) Overall Configuration FIG. 1 is a schematic configuration diagram of a bag making and packaging machine 100 according to an embodiment of the present invention.

The bag making and packaging machine 100 includes a film roll holding unit 80, a tension adjusting mechanism 10, a former unit 30 having a former body 31 and a tube 32, a conveying belt 40, a vertical sealing mechanism 50, a horizontal sealing mechanism 60, a printing device 70, and a printing check. It has the apparatus 75, the sensor 90, and the controller 200 (refer FIG. 1 and FIG. 2).

The bag making and packaging machine 100 is an apparatus that wraps an article C in a bag B to be made. That is, the bag making and packaging machine 100 is a device that makes a bag-like packaging material from the film F and makes a bag B in which an article C is accommodated. The article C is, for example, potato chips, but is not limited to this. The article C is supplied from an article supply device installed above the bag making and packaging machine 100, for example, a combination weighing machine (not shown).

The bag making and packaging machine 100 is generally configured as follows, and the operation of each unit is controlled by the controller 200, so that the bag B containing the articles C is manufactured in the following general flow (see FIG. 1). ).

The film roll holding unit 80 holds a film roll R around which a sheet-like film F serving as a packaging material is wound. The sheet-like film F drawn out from the film roll R is transported by the transport belt 40. The sheet-like film F is guided by the movable roller 11 and the fixed roller 12 of the tension adjusting mechanism 10 and conveyed to the former unit 30. In the tension adjusting mechanism 10, a force is applied to the film F by the movable roller 11 to adjust the tension of the film F being conveyed. The printing device 70 is disposed on the downstream side of the tension adjustment mechanism 10. The printing device 70 prints predetermined information such as the date of manufacture on a predetermined position (printing area A) of the film F conveyed by the conveying belt 40 (see FIG. 3). The print check device 75 is disposed on the downstream side of the print device 70. The print check device 75 checks the print state of the print area A of the film F being conveyed. The sensor 90 is disposed on the downstream side of the print check device 75. Further, the sensor 90 is disposed on the upstream side of the former unit 30. The sensor 90 is a sensor for detecting a mark M (see FIG. 3) printed on the film F. The detection result of the sensor 90 specifies the printing position by the printing device 70, the printing position check position by the printing check device 75, the horizontal sealing / cutting position of the film F (tubular film Fc) by the horizontal sealing mechanism 60, and the like. Used for. In the former body 31 of the former unit 30, the sheet-like film F is formed into a tubular shape to become a tubular film Fc. The tubular film Fc is transported downward by the transport belt 40, and the overlapping portion of the tubular film Fc is sealed in the longitudinal direction by the longitudinal seal mechanism 50 disposed below the former body 31. The cylindrical film Fc sealed in the vertical direction by the vertical sealing mechanism 50 is further transported downward by the transport belt 40, and is laterally (cylindrical film by the horizontal sealing mechanism 60 disposed below the vertical sealing mechanism 50. Sealed in a direction perpendicular to the Fc transport direction. Further, in the horizontal seal mechanism 60, the horizontal seal portion of the tubular film Fc is cut in the horizontal direction at the center in the transport direction of the tubular film Fc, and the bag B sealed at the upper and lower ends is made. The article C is supplied into the tubular film Fc serving as the bag B through the tube 32 of the former unit 30 before sealing the tubular film Fc by the lateral sealing mechanism 60. As a result, in the bag making and packaging machine 100, the bag B in which the article C is accommodated is produced.

The bag B in which the article C made by the bag making and packaging machine 100 is accommodated is conveyed to a downstream process by, for example, the conveyor 300 disposed below the lateral seal mechanism 60.

(2) Detailed configuration Below, the film roll holding unit 80, the tension adjusting mechanism 10, the former unit 30, the transport belt 40, the vertical sealing mechanism 50, the horizontal sealing mechanism 60, the printing device 70, the printing check of the bag making and packaging machine 100. The device 75, the sensor 90, and the controller 200 will be described.

(2-1) Film Roll Holding Unit The film roll holding unit 80 is a mechanism for holding the film roll R in which the sheet-like film F is wound around the winding core Rc (see FIG. 1). The film roll holding unit 80 is disposed on the uppermost stream in the film F transport path of the bag making and packaging machine 100.

The end of the film F wound around the film roll R on the side of the core Rc is attached to the core Rc with a tape or bonded to the core Rc with an adhesive or the like, and connected to the core Rc ( Fixed).

FIG. 3 shows an example of the film F wound around the winding core Rc. On the front surface of the film F wound around the winding core Rc, a predetermined pattern (including characters) is repeatedly printed for each length D so as to be used as a bag for packaging products. In FIG. 3, the drawing of the symbols printed on the film F is omitted. Further, the mark M is repeatedly printed on the front surface of the film F with a length D interval. The mark M is printed on the film F in black, for example. Further, the print area A is provided on the film F with a length D interval. The printing area A is an area where predetermined information such as the date of manufacture is printed by the printing device 70. The color (background color) of the print area A is, for example, white so that the print contents can be easily recognized when printed in black, for example.

The film F wound around the film roll R may include one or more seams of the film F for the convenience of manufacturing the film roll R. In the joint of the film F, the film F and the film F are connected with the tape T over the whole width direction of the film F (refer FIG. 3). For the tape T, for example, a dark-colored tape that hardly reflects light is used. For example, the tape T is a black tape. However, the color of the tape T is not limited to black. The printing area A adjacent to the seam of the film F, in particular, when the bag B is made by the bag making and packaging machine 100 using the film F, the bag B made by the film F including the seam. For example, a tape T is affixed to the printing area A disposed above by a manufacturer of the film roll R or the like. Alternatively, the printing area A adjacent to the seam of the film F, particularly when the bag B is made by the bag making and packaging machine 100 using the film F, the bag B made by the film F including the seam. The printing area A arranged on the upper side is filled with, for example, a black marker by a manufacturer of the film roll R or the like.

The film roll holding unit 80 includes a rotation shaft 81 (see FIG. 1) to which the core Rc of the film roll R is attached, and a roll drive motor (not shown) that rotates the rotation shaft 81. When the controller 200 operates the roll drive motor, the film F is fed out from the film roll R, and the fed film F is transported by the transport belt 40. The film F drawn from the film roll R is guided by a movable roller 11 and a fixed roller 12 of a tension adjusting mechanism 10 which will be described later, and is conveyed to the former body 31 of the former unit 30 (see FIG. 1).

(2-2) Tension Adjustment Mechanism The tension adjustment mechanism 10 is a mechanism that adjusts the magnitude of tension acting on the film F being conveyed. The tension adjusting mechanism 10 mainly includes a movable roller 11, a fixed roller 12, and an encoder 13 (see FIGS. 1 and 2). Both the movable roller 11 and the fixed roller 12 are rotatable rollers. The fixed roller 12 is fixed to a frame (not shown) of the bag making and packaging machine 100, and its position does not change. On the other hand, the movable roller 11 is attached to an end of an arm (not shown) rotatably attached to a frame (not shown) of the bag making and packaging machine 100, for example, so that the position of the movable roller 11 can be changed. It is configured. The magnitude of the tension applied to the film F transported by the tension adjusting mechanism 10 is the force that the movable roller 11 applies to the film F (the weight of the movable roller 11 or the force applied to the arm to which the movable roller 11 is attached, etc. ) Is adjusted according to the size. The encoder 13 is configured to detect a rotation angle around an axis of rotation of an arm (not shown) to which the movable roller 11 is attached. When all the films F of the film roll R are pulled out, the film F exerts a large force on the movable roller 11, whereby the arm to which the movable roller 11 is attached is rotated. The controller 200 described later is configured to detect the end of the film F wound around the film roll R based on the arm movement detected by the encoder 13.

(2-3) Former Unit The former unit 30 mainly includes a former body 31 and a tube 32 (see FIG. 1).

(2-3-1) Former Main Body The former main body 31 is a sheet-like film F that is drawn from the film roll R and conveyed from the rear to the front. It is bent so that the right end overlaps and is formed into a cylindrical shape. That is, the former body 31 forms the sheet-like film F conveyed by the conveyance belt 40 into the cylindrical film Fc.

The former body 31 is disposed so as to surround the cylindrical tube 32 in the circumferential direction. The cylindrical film Fc formed by the former body 31 is guided so as to be wound around the lower outer peripheral surface of the cylindrical tube 32, and is conveyed downward while being wound around the tube 32.

(2-3-2) Tube The tube 32 is a cylindrical member that extends in the vertical direction and has upper and lower ends opened. The upper part of the tube 32 is formed in a funnel shape whose diameter increases toward the upper end side. The lower part of the tube 32 has a uniform diameter.

The tube 32 receives the article C falling from the upper article supply apparatus from the upper opening. The article C introduced from the opening at the top of the tube 32 passes through the inside of the tube 32 and is supplied from the opening at the bottom of the tube 32 to the inside of the tubular film Fc.

(2-4) Conveying Belt The bag making and packaging machine 100 has a pair of conveying belts 40. In FIG. 1, the conveyance belt 40 is drawn behind the tube 32. However, in practice, the pair of transport belts 40 are respectively disposed on the right side (front side of the paper surface of FIG. 1) and the left side (back side of the paper surface of FIG. 1) of the tube 32. The pair of transport belts 40 is disposed below the former body 31 (see FIG. 1).

The pair of transport belts 40 is an example of a film transport unit. The pair of transport belts 40 transport the film F fed from the film roll R to the former body 31. Further, the transport belt 40 transports the tubular film Fc formed by the former main body 31 to the horizontal sealing mechanism 60. The conveyance belt 40 adsorbs and conveys the cylindrical film Fc wound around the tube 32 downward.

Each conveying belt 40 has a belt 41, a driving roller 42, and a driven roller 43 (see FIG. 1). The belt 41 has an adsorption function. The belt 41 is wound around the driving roller 42 and the driven roller 43. The drive roller 42 is connected to a roller drive motor (not shown) and is driven by the roller drive motor. When the driving roller 42 is driven by the driving motor while the belt 41 is adsorbing the film, the tubular film Fc is conveyed downward.

(2-5) Vertical Sealing Mechanism The vertical sealing mechanism 50 (see FIG. 1) is a mechanism that vertically seals (seals in the vertical direction) an overlapping portion of the tubular film Fc wound around the tube 32.

The vertical seal mechanism 50 includes a heater (not shown), a heater belt (not shown) that contacts the overlapping portion of the tubular film Fc, and a drive mechanism (not shown) that drives the heater belt. The heater heats the heater belt. The drive mechanism drives the heater belt in the front-rear direction so as to approach the tube 32 or away from the tube 32. By driving the heat belt so as to approach the tube 32 by the driving mechanism, the overlapping portion of the tubular film Fc wound around the tube 32 is sandwiched between the heater belt and the tube 32. The vertical sealing mechanism 50 heat seals the overlapping portion of the tubular film Fc in the vertical direction by pressing the overlapping portion of the tubular film Fc against the tube 32 with a predetermined pressure with a heated heater belt.

(2-6) Horizontal Seal Mechanism The horizontal seal mechanism 60 is disposed below the conveyor belt 40 and the vertical seal mechanism 50 (see FIG. 1). The horizontal sealing mechanism 60 is a mechanism that horizontally seals the tubular film Fc that has been transported downward by the transport belt 40 and has been vertically sealed by the vertical sealing mechanism 50. In other words, the lateral sealing mechanism 60 is a mechanism that seals the tubular film Fc in a direction that intersects the transport direction of the tubular film Fc, more specifically, in a direction (left-right direction) orthogonal to the transport direction of the tubular film Fc. It is. Further, the horizontal sealing mechanism 60 is a mechanism that cuts the tubular film Fc after horizontal sealing and separates the bag B whose upper and lower ends are horizontally sealed.

The horizontal seal mechanism 60 has a pair of

seal jaws

61a and 61b respectively disposed before and after the cylindrical film Fc (see FIG. 1). The

seal jaws

61a and 61b incorporate a heater. The

seal jaws

61a and 61b function as a pair when the cylindrical film Fc is laterally sealed.

The horizontal sealing of the tubular film Fc and the cutting of the tubular film Fc by the sealing

jaws

61a and 61b will be described.

When a drive mechanism (not shown) is driven, the

seal jaws

61a and 61b move so as to approach each other. The pair of sealing

jaws

61a and 61b sandwich the tubular film Fc while being pressed against each other, and apply pressure and heat to a part of the tubular film Fc that is the upper and lower ends of the bag B to perform horizontal sealing. A cutter (not shown) is built in one of the sealing

jaws

61a and 61b (for example, the sealing jaw 61b). The cutter cuts the lateral seal portion of the tubular film Fc at the center position in the transport direction of the tubular film Fc, and separates the bag B from the subsequent (upstream) tubular film Fc. After the sealing

jaws

61a and 61b complete the horizontal sealing and cutting of the cylindrical film Fc, the sealing

jaws

61a and 61b move away from each other, and the next horizontal sealing of the cylindrical film Fc and the cylindrical film Fc. Prepare for cutting.

(2-7) Printing device The printing device 70 prints predetermined information such as the date of manufacture at an appropriate position (printing area A of the film F) of the film F being conveyed. For example, the printing device 70 prints predetermined information in black on the white printing area A. When the printing device 70 performs printing on each printing area A, predetermined information is printed on each of the bags B discharged from the bag making and packaging machine 100.

The printing device 70 is disposed on the front side of the film F being conveyed. The printing device 70 is disposed below the film F being conveyed. The printing device 70 is disposed on the downstream side of the tension adjustment mechanism 10.

(2-8) Print Check Device The print check device 75 is a device for checking the print state of the print area A of the film F being conveyed. The print check device 75 includes a camera 75a.

The printing check device 75 acquires an image of the printing area A of the film F being conveyed by the camera 75a. The print check device 75 checks whether or not the predetermined information printed by the printing device 70 is printed on the print area A of the film F in a correct manner based on the image acquired by the camera 75a. The print check device 75 determines whether the clearness of printing, the contents of information, the printing position, etc. are appropriate or inappropriate.

Further, the print check device 75 is configured to detect the print area A in the first state in which printing by the printing device 70 cannot be identified. The first state in which the printing cannot be identified is, for example, from the image captured by the camera 75a even if the black tape T is stuck on the printing area A and the printing device 70 prints at a position corresponding to the printing area A. The print cannot be recognized. Further, the first state in which the printing cannot be identified is, for example, from the image captured by the camera 75a even if the printing area A is filled with a black marker or the like and the printing device 70 prints at a position corresponding to the printing area A. The print cannot be recognized. Here, the print check device 75 detects that the print area A is in the first state when it is recognized that the entire print area A is black (different from the color of the original print area A). When the print check device 75 detects that one print area A is in the first state, the print check device 75 transmits a signal notifying the controller 200 to that effect.

(2-9) Sensor The sensor 90 is a sensor for detecting the mark M printed on the film F. The sensor 90 is attached at a position where the mark M printed on the conveyed film F can be detected. The detection result of the mark M by the sensor 90 is used to specify the horizontal sealing / cutting position (position in the conveyance direction of the cylindrical film Fc) of the cylindrical film Fc by the horizontal sealing mechanism 60. Further, the detection result of the mark M by the sensor 90 specifies the printing position (the position of the printing area A, particularly the position of the printing area A in the conveyance direction of the film F) where the printing device 70 should print predetermined information on the film F. Used to do. Further, the detection result of the mark M by the sensor 90 specifies the position (the position of the printing area A, particularly the position of the printing area A in the conveyance direction of the film F) where the printing check device 75 should check the printing state of the film F. Used for. The sensor 90 is disposed between the print check device 75 and the former unit 30 in the film F conveyance path.

The sensor 90 is, for example, a reflection sensor. The reflection sensor includes a light emitting unit that emits light and a light receiving unit that receives light. In the reflection sensor, light emitted from the light emitting unit is applied to the film F, and the reflected light is received by the light receiving unit. The reflection sensor detects a change in the amount of light received by the light receiving unit. When light is applied to the black mark M portion, the amount of reflected light is reduced compared to when light is applied to other portions of the film F, and therefore the mark M can be detected using the sensor 90. . The sensor 90 does not have to be a reflection sensor, and various sensors that can detect the mark M may be used.

The sensor 90 is configured to transmit a predetermined signal (hereinafter, this signal is referred to as a detection signal) to the controller 200 when, for example, the amount of light received by the light receiving unit decreases to a predetermined amount or less.

The controller 200 specifies the horizontal sealing / cutting position of the tubular film Fc of the horizontal sealing mechanism 60 based on the detection result of the sensor 90 (detection signal transmitted by the sensor 90). By using the mark M printed on the film F at regular intervals, the horizontal sealing / cutting position of the tubular film Fc can be accurately adjusted.

Further, the controller 200 specifies the position to be printed on the printing device 70 based on the detection result of the sensor 90 (detection signal transmitted by the sensor 90). Further, the controller 200 specifies a position where the print check device 75 checks the print state based on the detection result of the sensor 90 (detection signal transmitted by the sensor 90). By using the marks M printed on the film F at regular intervals, the printing position (printing area A) of the tubular film Fc can be accurately specified.

The sensor 90 is also used to detect the tape T attached to the seam of the film F fed from the film roll R. The sensor 90 emits a detection signal to the controller 200 when light is emitted from the light emitting unit to the black tape T and the amount of light received by the light receiving unit is reduced to a predetermined amount or less.

Whether the detection signal of the sensor 90 is transmitted because the sensor 90 has detected the mark M or whether the sensor 90 has been transmitted because the tape T of the film F has been detected is transmitted by a controller which will be described later. It is determined by the 200 seam detection unit 210a.

(2-10) Controller The controller 200 controls the operation of each part of the bag making and packaging machine 100.

The controller 200 is a control device mainly including a control unit including a CPU and a storage unit including a RAM, a ROM, a flash memory, and the like. In the controller 200, the control unit reads and executes the program stored in the storage unit, thereby controlling the operation of each unit of the bag making and packaging machine 100.

The controller 200 includes various parts of the bag making and packaging machine 100, such as a film roll holding unit 80, a tension adjusting mechanism 10, a conveying belt 40, a vertical sealing mechanism 50, a horizontal sealing mechanism 60, a printing device 70, a printing check device 75, and a sensor. 90 (see FIG. 2).

In addition, the controller 200 is electrically connected to the operation panel 240 and the touch panel display 250. The operation panel 240 is an operation panel for operating the bag making and packaging machine 100 and mainly includes a switch. The display 250 displays the operating state of the bag making and packaging machine 100 and accepts input of various settings for the bag making and packaging machine 100.

The operation panel 240 and the display 250 are an example of an input unit that receives instructions for the bag making and packaging machine 100 and settings related to the bag making and packaging machine 100. For example, the designated number of seams of the film F wound around the film roll R is input to the operation panel 240 or the display 250. The specified number of joints will be described later.

The display 250 is an example of an output unit that outputs information related to the bag making and packaging machine 100. For example, the display 250 performs output related to the number of seams of the film F counted by a counting unit 210b described later.

The controller 200 performs operations of the bag making and packaging machine 100 based on operations and settings input from the operation panel 240 and the display 250, detection results of various sensors installed in the bag making and packaging machine 100, for example, as follows. Control like this.

For example, the controller 200 controls the transport belt 40 so that the transport belt 40 transports the sheet-like film F fed from the film roll R of the film roll holding unit 80 at a predetermined speed. Further, for example, the controller 200 activates a roll drive motor (not shown) of the film roll holding unit 80 based on the detection result of the encoder 13 provided in the tension adjusting mechanism 10 (in other words, the position of the movable roller 11). / Stop and control the rotation speed of the film roll R by the roll drive motor. For example, the controller 200 detects the end of the film roll R (the end of the film F wound around the film roll R) based on the detection result of the encoder 13.

Further, for example, the controller 200 causes the printing device 70 to print predetermined information on each print area A of the film F based on the detection result (detection signal) of the sensor 90 and information on the transport distance of the film F. In addition, the operation of the printing apparatus 70 is controlled. Further, in the controller 200, the camera 75 a of the print check device 75 acquires an image of each print area A of the film F based on the detection result (detection signal) of the sensor 90 and information on the transport distance of the film F. Thus, the operation of the print check device 75 is controlled. The print check device 75 checks the print state of the image acquired by the camera 75a.

When the print check device 75 determines that the print state of the print area A is inappropriate (including the case where the print area A is detected to be in the first state), the print check device 75 notifies the controller 200 accordingly. Send a signal. The controller 200 that has received this signal temporarily stops the bag making and packaging machine 100 when the bag making and packaging machine 100 discharges the bag B having the printing area A, for example. By temporarily stopping the bag making and packaging machine 100, the operator can visually confirm the printing state of the bag B. If the operator determines that there is a problem based on the visual result of the print state, the operator can correct the problem. If the operator determines that there is no problem, the operator can restart the operation of the bag making and packaging machine 100. Whether or not the controller 200 temporarily stops the bag making and packaging machine 100 when the printing check device 75 transmits a signal indicating that the printing state of the printing area A is inappropriate is determined by the operator. It may be configured to be changeable according to the setting.

Further, for example, the controller 200 controls the conveyance belt 40 so that the film F (cylindrical film Fc) formed in a cylindrical shape by the former main body 31 is conveyed downward, and the seam of the cylindrical film Fc being conveyed is controlled. The vertical sealing mechanism 50 is controlled so that is sealed in the vertical direction. In addition, for example, the controller 200 is configured such that the article C discharged from the article supply device (not shown) is conveyed downward in accordance with the timing at which the article C is discharged from the lower opening end of the tube 32 of the former unit 30. The horizontal sealing mechanism 60 is controlled so as to be laterally sealed. The controller 200 detects the detection result (detection) of the sensor 90 so that the tubular film Fc is laterally sealed at an appropriate position, and the laterally sealed bag B is separated from the upstream tubular film Fc at an appropriate position. Signal) and the information related to the transport distance of the film F, the horizontal sealing mechanism 60 is controlled.

Further, the controller 200 is configured to count the number of times the seam of the film F is detected, and to output the number of seams counted.

The controller 200 includes a seam detection unit 210a, a count unit 210b, a comparison unit 210c, a notification unit 210d, and a device stop unit as functional units related to the count of the number of joints of the film F and an output related to the counted number of seams. 210e is mainly included. The controller 200 also includes a designated number storage area 220a and a count number storage area 220b as storage areas for storing information related to the count of the number of joints of the film F and output related to the counted number of joints. Have.

(2-10-1) Seam Detection Unit The seam detection unit 210a is an example of a detection unit that detects a seam of the film F conveyed by the conveyance belt 40. The joint detection unit 210a detects the joint of the film F conveyed by the conveyance belt 40 based on the detection result (detection signal) of the sensor 90.

Specifically, the seam detection unit 210a determines whether the detection signal transmitted from the sensor 90 to the controller 200 is transmitted because the sensor 90 has detected the mark M, or the sensor 90 is the film F. It is determined whether the signal is transmitted because the joint tape T is detected. Based on the result, the joint detection unit 210a detects the joint of the film F (that is, the tape T) conveyed by the conveyance belt 40.

As a specific process, the joint detection unit 210a performs a process as disclosed in Patent Document 1 (Japanese Patent Laid-Open No. 10-175619). For example, the seam detection unit 210a uses the fact that the position of the tape T is irregular with respect to the mark M printed on the film F at regular intervals, and uses the difference in the output interval of the detection signal of the sensor 90. Based on this, the mark M portion of the film F and the seam (tape T portion) of the film F are determined. Further, for example, the joint detection unit 210a uses the difference in width between the mark M portion of the film F and the joint (tape T portion) of the film F in the transport direction of the film F to detect the detection signal of the sensor 90. Based on the difference in output time (difference in detection signal width), the mark M portion of the film F and the seam (tape T portion) of the film F are determined.

When the seam detection unit 210a detects the seam of the film F (the detection signal transmitted from the sensor 90 to the controller 200 is transmitted because the sensor 90 detects the tape T of the seam of the film F). If it is determined that it is a device, a signal to that effect is transmitted to a count unit 210b described later.

(2-10-2) Count Unit The count unit 210b counts the number of detected seams. Specifically, when the count unit 210b receives a signal indicating that the seam of the film F has been detected from the seam detection unit 210a, the count unit 210b increases the number of seams stored in a count number storage area 220b described later by one. I do.

In addition, when the print check device 75 detects that one print area A is in the first state, the count unit 210b is connected to the print area A detected that the joint detection unit 210a is in the first state. Even when the seam of the film F is not detected at the corresponding position (even when the seam detection unit 210a has not transmitted a signal indicating that the seam of the film F has been detected), it is stored in the count number storage area 220b. Processing to increase the number of seams by 1 is performed. The position corresponding to the print area A detected as being in the first state is, for example, between the print area A detected as being in the first state and the print area A adjacent to the print area A. Means. For example, with reference to FIG. 3, the position corresponding to the print area A1 detected as being in the first state is adjacent to the print area A1 detected as being in the first state and the print area A. Means between the print areas A2 and A3. In other words, referring to FIG. 3, the case where the joint detection unit 210 a does not detect the joint of the film F at the position corresponding to the print area A <b> 1 detected as being in the first state refers to the film F in FIG. 3. This is a case where the seam (tape T) cannot be detected. By configuring the counting unit 210b as described above, even if the joint detection unit 210a cannot detect the joint of the film F for some reason, it can be detected without overlooking it.

(2-10-3) Comparison Unit The comparison unit 210c, at a predetermined timing, designates the number of joints stored in a specified number storage area 220a, which will be described later, and the seam stored in a count number storage area 220b, which will be described later. Are compared with each other to determine whether or not they match. When the designated number of joints and the count number of joints do not match, the comparison unit 210c transmits a signal informing the fact to the notification unit 210d described later. The operation timing of the comparison unit 210c will be described later.

(2-10-4) Reporting unit The reporting unit 210d is an example of an output unit. When receiving a signal indicating that the designated number of joints does not match the count number of joints from the comparison unit 210c, the reporting unit 210d outputs an error as an output related to the counted number of joints.

The error output is an output for informing the operator that an error has occurred in the bag making and packaging machine 100 in which the designated number of seams does not match the number of seams.

For example, the reporting unit 210d may include a lamp (not shown) and notify the operator of the occurrence of an error by turning on the lamp. Further, for example, the report unit 210d may include a speaker (not shown) and notify the operator of the occurrence of an error by causing the speaker to emit a warning sound. Further, for example, the reporting unit 210d may transmit an error message to a portable terminal carried by an operator (not shown). Further, for example, the reporting unit 210d may transmit a signal to an apparatus stop unit 210e described later to stop the bag making and packaging machine 100, thereby notifying the operator of the occurrence of an error. In addition, the alerting | reporting part 210d may perform the error output of a some aspect simultaneously. Further, the reporting unit 210d may be configured to perform only the error output of the mode selected by the operator among the error outputs of the plurality of modes.

(2-10-5) Device Stop Unit The device stop unit 210e is configured to stop the bag making and packaging machine 100 when receiving a signal transmitted as an error output by the reporting unit 210d.

(2-10-6) Designated Number Storage Area The designated number storage area 220a stores the designated number of joints input from the operation panel 240 or the display 250, for example. The designated number of seams is, for example, the number of seams included in the film F wound around the film roll R. The designated number of joints is information given in advance by the manufacturer of the film roll R, for example. The designated number of seams is usually a different value for each film roll R. The designated number of seams stored in the designated number storage area 220a may not be input from the operation panel 240 or the display 250, but may be input to the controller 200 from a portable terminal or the like carried by the operator. There may be.

(2-10-7) Count Number Storage Area The count number storage area 220b stores the result of the count unit 210b counting the number of joints detected by the joint detection unit 210a.

(3) Counting the number of seams in the film and processing of output relating to the number of seams Specific examples of processing for counting the number of seams in the film and output relating to the number of seams executed in the bag making and packaging machine 100 are as follows. This will be described with reference to the flowchart of FIG.

Here, the flow of processing will be described starting from the time when the film roll R of the bag making and packaging machine 100 is replaced with a new one. Note that at the start of processing, the value in the count number storage area 220b is reset and the value “0” is stored.

First, in step S1, the film roll R is exchanged. That is, in step S <b> 1, a new film roll R is set in the film roll holding unit 80.

Next, in step S2, a designated number of seams of the film F for the film roll R newly set in the film roll holding unit 80 is input from the operation panel 240 or the display 250.

Next, in step S3, the designated number of seams input in step S2 is stored in the designated number storage area 220a.

Next, in step S4, the operation panel 240 and the display 250 are operated, and the operator starts the operation of the bag making and packaging machine 100.

In step S5, the controller 200 receives the detection signal transmitted from the sensor 90.

In step S6, the joint detection unit 210a determines whether the detection signal received in step S5 is transmitted because the sensor 90 detects the mark M or because the sensor 90 detects the tape T of the joint of the film F. Determine if it was sent. When the seam detection unit 210a detects the seam of the film F (the seam detection unit 210a determines that the detection signal received in step S5 is transmitted because the sensor 90 detects the tape T of the seam of the film F). In the case), the joint detection unit 210a transmits a signal notifying the count unit 210b. Then, the process proceeds to step S8. Even when the process proceeds to step S8, it is determined that the print area A adjacent to the seam of the film F is already in the first state in step S7, which will be described later, and the counting unit in step S8, which will be described later. When 210b is counting the number of joints, it is preferable to skip the process of step S8 in order to avoid duplication counting.

On the other hand, when the seam detection unit 210a does not detect the seam of the film F in step S6 (the seam detection unit 210a determines that the detection signal received in step S5 is transmitted because the sensor 90 detects the mark M). If so, the process proceeds to step S7.

In step S7, the count unit 210b causes the print check device 75 to print the print area A corresponding to the position where the seam of the film F is not detected in step S6 (that is, the position where the seam detection unit 210a determines that the mark M exists). Then, it is confirmed whether or not it has been detected that it is in the first state. In step S6, the print area A corresponding to the position where the seam of the film F is not detected (that is, the position where the joint detection unit 210a determines that the mark M exists) is adjacent to the position where the mark M is determined to exist (upstream). The printing area A (on the side and downstream). Since the position of the camera 75a and the position of the sensor 90 of the print check device 75 are immovable, and the controller 200 knows information about the transport distance of the film F by the transport belt 40, the controller 200 detects the joint detection unit 210a. However, the print area A corresponding to the position where the mark M is determined to be present can be easily specified.

When the count unit 210b confirms in step S7 that the print check device 75 has detected that the print check device 75 is in the first state for the print area A corresponding to the position where the seam of the film F is not detected in step S6. The process proceeds to step S8. On the other hand, if the count unit 210b confirms that the print check device 75 has not detected that the print check device 75 is in the first state for the print area A corresponding to the position where the seam of the film F is not detected in step S6, Proceed to S9. Even when the process proceeds to step S8, the count unit 210b has already counted the number of joints for the print area A, or the position adjacent to the print area A (the print area A and In the case where the seam of the film F has already been detected between the adjacent print areas A), it is preferable to skip the process of step S8 in order to avoid duplication count.

In step S8, the count unit 210b counts the number of joints. Specifically, the count unit 210b increases the number of joints stored in the count number storage area 220b by one.

When the number of joints stored in the count number storage area 220b is incremented by 1 in step S8, the controller 200 is, for example, a film F including a portion determined to be a joint in step S6 or step S7. A signal requesting supply of an article is not transmitted to an article supply apparatus (not shown) so that the article C is not supplied to the bag B that has been made. By being configured in this way, it is possible to prevent the article C from being wasted. The controller 200 does not separate the bag B made of the film F including the seam and the bag B made of the tubular film Fc on the downstream side of the bag B. The horizontal seal mechanism 60 is controlled so as to be discharged from 100. By comprising in this way, it becomes easier to exclude the bag B including the seam of the film F from the production process, and a highly reliable bag making and packaging machine can be realized.

In step S9, the controller 200 determines the end of the film roll R (the end of the film F wound around the film roll R) based on the arm movement (movement of the movable roller 11) detected by the encoder 13 of the tension adjusting mechanism 10. It is determined whether or not it has been detected. When the controller 200 detects the end of the film roll R, the process proceeds to step S10. On the other hand, when the controller 200 has not detected the end of the film F wound around the film roll R of the film roll R, the process returns to step S5.

In step S10, the comparison unit 210c determines whether or not the designated number of joints stored in the designated number storage area 220a matches the count number of joints stored in the count number storage area 220b. If it is determined that they do not match, the process proceeds to step S11. If it is determined that they match, the process proceeds to step S12.

In step S11, for example, the reporting unit 210d, which is an example of an output unit, performs the error output as described above as the output related to the counted number of joints.

In step S11, the display 250, which is an example of an output unit, performs output related to the counted number of joints. The display 250 is an example of a display unit. The display 250 displays, for example, the counted number of seams as an output related to the counted number of seams. That is, the display 250 displays the numbers stored in the count number storage area 220b. Further, on the display 250, for example, the designated number of seams stored in the designated number storage area 220a is displayed simultaneously with the counted number of seams. Also, the display 250 notifies that an error has occurred in which the counted number of joints and the designated number of seams do not match in place of or in addition to the counted number of joints and the designated number of joints. Characters and images may be displayed.

In step S11, both the reporting unit 210d and the display 250 may perform the above output, or only one of them may perform the above output.

Finally, in step S12, the value of the count number storage area 220b is reset. Thereafter, the film roll R is exchanged in step S1, and the above flow is repeated.

(4) Features (4-1)
The bag making and packaging machine 100 according to the present embodiment is a bag making and packaging machine that wraps an article C in a bag B to be made. The bag making and packaging machine 100 includes a film roll holding unit 80, a conveyance belt 40 as an example of a film conveyance unit, a seam detection unit 210a as an example of a detection unit, and a count unit 210b. The film roll holding unit 80 holds the film roll R around which the film F serving as the bag B is wound. The conveyance belt 40 conveys the film F fed out from the film roll R. The joint detection unit 210 a detects the joint of the film F conveyed by the conveyance belt 40. The count unit 210b counts the number of detected seams.

Here, since the number of detected seams is counted, it is possible to easily prevent check omission of the seams of the film.

(4-2)
The bag making and packaging machine 100 according to the present embodiment includes a display 250 and a notification unit 210d as an example of an output unit. The display 250 and the notification unit 210d perform output related to the counted number of joints.

Here, since the output relating to the counted number of joints is performed, it is possible to easily prevent the check of the joints of the film.

(4-3)
The bag making and packaging machine 100 according to the present embodiment includes an operation panel 240 or a touch panel display 250 as an example of an input unit to which a designated number of seams are input.

Here, output based on the designated number of joints provided by the manufacturer of the film roll R or the like can be performed.

(4-4)
In the bag making and packaging machine 100 according to the present embodiment, the display 250 and the reporting unit 210d are configured so that the number of joints counted when the number of joints counted by the counting unit 210b does not match the designated number of joints. An error is output as the output related to.

Here, when the counted number of joints does not match the designated number, an error output can notify the operator of this abnormality, or the bag making and packaging machine 100 can be stopped based on the error output. Therefore, it is possible to easily prevent a check leak of the seam of the film. Moreover, it is possible to take an early response to the abnormality that has occurred.

(4-5)
In the bag making and packaging machine 100 according to the present embodiment, the output unit includes a display 250 as an example of a display unit. The display 250 displays the counted number of joints as an output related to the counted number of joints, and further displays the designated number of joints simultaneously with the counted number of joints.

Here, the operator can determine at a glance whether the count number of the seam matches the specified number, and if there is no match, how much difference there is.

(4-6)
The bag making and packaging machine 100 according to the present embodiment includes a printing device 70 and a printing check device 75. The printing device 70 prints information on the printing area A of the film F conveyed by the conveyance belt 40. The print check device 75 checks the print state of the print area A. The printing check device 75 detects the printing area A in the first state in which printing by the printing device 70 cannot be identified. When the print check device 75 detects that one print area A is in the first state, the count unit 210b corresponds to the print area A detected by the seam detection unit 210a as being in the first state. The number of seams is counted even when no seam is detected.

Here, by performing processing for setting the print area A corresponding to the joint to the first state on the film roll R, even if the joint detection unit 210a cannot detect the joint, the joint is counted without omission. be able to.

(5) Modifications Modifications of the present embodiment are shown below. It should be noted that a plurality of modified examples may be combined within a range that is consistent with each other.

(5-1) Modification A
The process of counting the number of seams of the film and the output regarding the number of seams is not limited to the process of the above embodiment.

For example, the process of counting the number of seams in the film and the output regarding the number of seams may be performed according to a flowchart as shown in FIG.

In the flowchart of FIG. 5, after the film roll R is replaced in step S1, the designated number of seams are not input and stored, and the bag making and packaging machine 100 is immediately operated (step S4).

Since the subsequent processing from step S5 to step S9 is the same as the processing in the above embodiment, the description thereof is omitted.

When the end of the film roll R is detected in step S9, since the designated number of seams is not stored in the designated number storage area 220a, the designated number of seams is not compared with the counted number of seams. The process of step S111 is performed.

In step S111, error output is not performed, and the number of joints counted on the display 250 (value stored in the count number storage area 220b) is displayed. Thereafter, the process proceeds to step S12. Since step S12 is the same, description thereof is omitted.

Even in such a configuration, the operator can grasp the number of seams of the film F detected by the film roll R. Then, the operator compares the number of detected seams of the film F with, for example, the number of seams included in the previously known film roll R, so that all the seams of the film F are detected by the seam detecting unit 210a. It is possible to immediately know whether it has been detected.

(5-2) Modification B
In the above embodiment, the number of joints counted and the designated number of joints are displayed on the display 250, but the display unit is not limited to the display 250. For example, the display unit may be a portable terminal carried by an operator.

(5-3) Modification C
In the above embodiment, after the end of the film roll is detected, the output process is performed in step S11. However, the present invention is not limited to this. For example, after the designated number of joints is input in step S2, the designated number of joints may be displayed on the display 250 at all times or in accordance with the operation of the operator. Further, for example, the counted number of seams may be configured to be displayed on the display 250 in real time or in real time according to the operation of the operator.

(5-4) Modification D
In the above embodiment, the count number of the joint and the designated number of the joint are displayed on the display 250 at the same time, but the present invention is not limited to this. For example, the display 250 may be configured to display the joint count number and the designated number of joints on different screens.

(5-5) Modification E
In the above-described embodiment, when the print check device 75 detects that the one print area A is in the first state, the count unit 210b detects that the seam detection unit 210a has detected that the first state is in the first state. The number of joints is also counted when no joint is detected at the position corresponding to A. However, the configuration of the count unit 210b is not limited to this.

For example, the count unit 210b may count the number of joints based only on the detection result of the joint detection unit 210a. However, by using the detection result of the print check device 75, it is easier to detect the seam of the film F without oversight.

(5-6) Modification F
Although not mentioned in the above embodiment, according to the configuration of the above embodiment, the joint detection unit 210a uses the seam of the film F between the film rolls R (the film F of the film roll R that has been used up to now and a new use). The tape T) applied to the joint of the film roll R with the film F can also be detected. The count unit 210b may be configured to count the seams of the film F between the film rolls R as the number of seams of the film F.

When the number of seams of the film F between the film rolls R is counted as the number of seams of the film F, the designated number of seams so that the seam of the film F between the film rolls R is also included as one seam. May be defined.

(5-7) Modification G
In the above embodiment, the designated number of joints is input from the input unit such as the operation panel 240 or the display 250, but the designated number of joints may not be input from the input unit as described above.

For example, the bag making and packaging machine 100 may be configured as follows.

First, as a premise, the film roll R is given information on the designated number of seams. Information regarding the designated number of seams is attached to the film roll R by, for example, attaching a label to the film F or the core Rc of the film roll R. For example, a designated number of seams is printed on the label, and a barcode indicating the designated number of seams is further printed. The bar code may include information indicating the type of the film F. And the bag making packaging machine 100 has a reader which reads this barcode. When replacing the film roll R, the operator uses the reader to read the information on the barcode attached to the film roll R (from the label attached to the film roll R) (information on the designated number of seams). Read). The bag making and packaging machine 100 stores the designated number of seams in the designated number storage area 220a based on the reading result of the reader.

Instead of the operator manually reading the barcode using the reader, the reader 400 is attached in the vicinity of the film roll holding unit 80, and the reader 400 automatically operates when the film roll R is replaced. It may be configured to read a bar code. With this configuration, it is possible to save the labor of the operator.

The label may be printed with a QR code (registered trademark) including the same information instead of the barcode. Further, instead of attaching a label to the film roll R, the same content may be directly printed on the winding core Rc or the like. In addition, instead of printing a barcode or the like, the film roll R is attached with an electronic tag or the like storing information on the designated number of seams, and the bag making and packaging machine 100 has a reader that is an electronic tag reader. Also good.

The bag making and packaging machine according to the present invention is useful as a highly reliable bag making and packaging machine in which it is easy to prevent check leakage of a seam of a film.

40 Conveyor belt (film transport unit)
70 Printing Device 75 Printing Check Device 80 Film Roll Holding Unit 100 Bag Making and Packaging Machine 210a Seam Detection Unit (Detection Unit)
210b Counting unit 210d Reporting unit (output unit)
240 Operation panel (input unit)
250 display (output unit, display unit, input unit)
400 Reading section A Printing area B Bag C Article F Film R Film roll

JP-A-10-175619

Claims

A bag making and packaging machine for packaging articles in bags to be made,
A film roll holding section for holding a film roll wound with a film to be a bag,
A film transport section for transporting the film fed from the film roll;
A detection unit for detecting a seam of the film conveyed by the film conveyance unit;
A counting unit that counts the number of detected seams;
A bag making and packaging machine.
An output unit for performing an output related to the number of seams counted by the counting unit;
The bag making and packaging machine according to claim 1.
An input unit for inputting the designated number of seams;
The bag making and packaging machine according to claim 2.
A reading unit that reads information on a designated number of seams attached to the film roll;
The bag making and packaging machine according to claim 2.
The output unit performs error output as an output related to the counted number of seams when the number of seams counted by the counting unit and the designated number of seams do not match.
The bag making and packaging machine according to claim 3 or 4.
The output unit includes a display unit,
The display unit displays the counted number of seams as an output related to the counted number of seams, and further displays the designated number of seams simultaneously with the counted number of seams.
The bag making and packaging machine according to any one of claims 3 to 5.
A printing device for printing information on a printing area of the film conveyed by the film conveying unit;
A print check device for checking the print state of the print area;
Further comprising
The printing check device detects the printing area in a first state in which printing by the printing device cannot be identified;
When the print check device detects that the one print area is in the first state, the count unit corresponds to the print area detected as being in the first state. Even when the seam is not detected at a position, the number of seams is counted.
The bag making and packaging machine according to any one of claims 1 to 6.