JP6915860B2 - Packaging inspection display device in packaging machine - Google Patents

Description

The present invention relates to a packaging inspection display device that inspects the existence status of articles such as misalignment of articles supplied to a tubular film in a packaging machine such as a horizontal bag-making filling machine and displays the inspection results.

A vertical sealing portion is formed in the overlapping portion of the tubular film that overlaps in a palm-like shape, and the tubular film is sandwiched between the front and rear positions of the articles supplied at predetermined intervals in the tubular film by horizontal sealing means for horizontal sealing. In the horizontal bag-making filling machine, the conveyed tubular film is irradiated with X-rays before the tubular film being conveyed is laterally sealed, and the amount of X-ray transmission transmitted through the tubular film is measured. A defective product detection device in a horizontal bag-making filling machine has been proposed that detects and determines the position deviation of the article supplied in the tubular film from the specified position and the presence or absence of the article caught in the vertical seal portion. (See Patent Documents 1 and 2). In addition, as an inspection result of detecting the amount of X-ray transmission, information such as an abnormality occurrence is notified to the display means by characters, a warning lamp, or the like. Further, in the defect detection device connected to the subsequent process of the packaging device, the passage of each packaged product sent to the inspection unit is detected, and the X-ray transmission amount of the packaged product is detected to detect the X-ray transmission image. Is also conventionally displayed on the display means.

Japanese Unexamined Patent Publication No. 2016-120923 JP-A-2017-20866

The packaging material used in the horizontal bag filling machine is printed with aluminum vapor deposition film, laminated film such as aluminum and Japanese paper, and other resin films, and is opaque. The article supplied into the film at predetermined intervals cannot be visually recognized by the operator from the outside. Therefore, in the inspection results of the detection device disclosed in Patent Documents 1 and 2, before and after sandwiching the seal position in relation to the degree of misalignment of the article and the planned horizontal seal position of the continuously conveyed film. There is a problem that it is not possible to intuitively know immediately at the time of detection, such as which of the articles is misaligned, how much the article is misaligned, or whether it is due to false detection due to an error in detection accuracy. there were. As described above, even if a false detection is made due to a defective detection sensor or the like, it is difficult to verify whether the inspection result is correct or not.

Therefore, in the present invention, a packaging film made of an opaque material is used, and it is supplied into the tubular film at predetermined intervals corresponding to the position of the tubular film in each packaging cycle in the continuously conveyed tubular film. It is an object of the present invention to provide a packaging inspection display device in a packaging machine capable of displaying an image as a display means so that the position of the finished article can be intuitively understood.

The packaging inspection display device in the packaging machine of the invention according to claim 1 of the present application is
During transportation in the transport section of the tubular film (12a) until the tubular film (12a) is laterally sealed at the front-rear position of the article (18) supplied into the tubular film (12a) at predetermined intervals. A detection means (28) that irradiates an inspection wave composed of an electromagnetic wave that traverses the tubular film (12a) and detects the amount of the inspection wave transmitted over time, and a detection means (28).
A display means (54) that displays the object to be detected (18) detected over time as a transparent image from the detection value of the transmission amount by the detection means (28).
The display screen of the display means (54) includes articles (18) supplied at predetermined intervals in the tubular film (12a) obtained over time as the tubular film (12a) is conveyed. A transparent image (64,66) of the object (18) and an identification image (70) representing a dividing position capable of identifying the planned horizontal seal position on the tubular film (12a) being conveyed are both images (64). , 66,70) An identification image including a transparent image (64,66) before and after sandwiching an identification image (70) that moves with the transportation of the tubular film (12a) so that the positions can be distinguished by comparing each other. characterized by comprising a display control unit that obtained display (50) with (70).
According to the invention of claim 1, in relation to the horizontal seal timing that can identify the planned horizontal seal position, the object to be detected such as an article supplied in the tubular film or a foreign matter caught in the vertical seal portion. It can be identified immediately by being displayed on the display means so that the positional relationship with the transmitted image due to the inspection wave of the above can be understood. In addition, the position of the object to be detected existing in the tubular film that is opaque and the inside cannot be seen through can be grasped from the image, and the misalignment state of the object to be detected can also be seen from the image. You can take corrective and prompt measures.

In the invention according to claim 7 , the display control unit (50) bites the article (18) by the horizontal sealing means (26) that laterally seals the identification image (70) on the tubular film (12a). The display means (54) can be compared with the transmitted image (64) of the article (18) supplied to the tubular film (12a) as the object to be detected, and the region where there is a risk of getting into the film can be identified. The feature is that it is displayed on the display screen.
According to the invention of claim 7, it is possible to discriminate the region between the start point and the end point where the article may be bitten by the horizontal sealing means in the identification image, and compare it with the transmitted image of the article as the object to be detected. In the opaque tubular film that cannot be seen from the outside, the positional relationship with the position of the article in the tubular film being conveyed can be seen at a glance from the displayed image. In addition, since the planned position of the horizontal seal and the position of the article can be seen on the display image, the seal timing can be set by the horizontal seal means, which has been adjusted by intuition, and the setting can be corrected on the screen. After confirming the position of the article, the setting operation can be performed.

In the invention according to claim 8 , the display control unit (50) bites into the polymerization unit (12b) extending from the tubular portion (32) in which the article (18) is housed in the tubular film (12a). It is characterized in that the foreign matter that has entered is displayed on the display screen of the display means (54) as a transparent image (66) of the object to be detected.
According to the invention of claim 8 , it is possible to identify the position of the foreign matter caught in the vertical seal portion by the screen display in relation to the position of the start end or the end end of the tubular film for one package. can. Then, the situation in which a foreign substance such as an article is caught in the vertical seal portion, which has not been seen so far, can be immediately visually recognized by the screen display. As a result, it is possible to investigate the cause of foreign matter biting and take other measures appropriately.

The packaging inspection display device in the packaging machine of the invention according to claim 3 of the present application is
During transportation in the transport section of the tubular film (12a) until the tubular film (12a) is laterally sealed at the front-rear position of the article (18) supplied into the tubular film (12a) at predetermined intervals. A detection means (28) that irradiates an inspection wave composed of an electromagnetic wave that traverses the tubular film (12a) and detects the amount of the inspection wave transmitted over time, and a detection means (28).
A display means (54) that displays the object to be detected (18) detected over time as a transparent image from the detection value of the transmission amount by the detection means (28).
The display screen of the display means (54) includes articles (18) supplied at predetermined intervals in the tubular film (12a) obtained over time as the tubular film (12a) is conveyed. A transparent image (64,66) of the object (18) and an identification image (70) representing a dividing position capable of identifying the planned horizontal seal position on the tubular film (12a) being conveyed are both images (64). , 66,70) Equipped with a display control unit (50) that displays the positions of each other in a contrastable manner.
On the display screen of the display means (54), an inspection image display unit (62) for displaying the transparent image (64, 66) and an image display unit (68) for displaying the identification image (70) are moved up and down. It is characterized by being provided side by side.
In the invention according to claim 5, the inspection image display unit (62) for displaying the transparent image (64,66) and the image display for displaying the identification image (70) are displayed on the display screen of the display means (54). It is characterized in that the parts (68) are arranged side by side.
According to the inventions of claims 3 and 5, in addition to the same effects as those of claim 1, the transparent image and the identification image can be distinguished and visually recognized in an easy-to-understand manner.

In the invention according to claim 9 , a mark sensor (36) that detects registration marks made on the film at predetermined intervals in the transport path of the strip-shaped film (12) from the film roll (10) to the bag-making means (14). )
The display control unit (50) responds to the dividing position of the tubular film (12a) for one package conveyed in one packaging cycle, which is obtained from the result of the mark sensor (36) detecting the registration mark. The identification image (70) is displayed on the display screen of the display means (54).
According to the invention of claim 9 , the image is displayed on the display means as an identification image according to the dividing position (starting end and ending) of the tubular film for one package obtained based on the detected registration mark position. Therefore, the automatic setting can be performed without performing the setting operation for displaying the position of the tubular film by the operator.

The packaging inspection display device in the packaging machine of the invention according to claim 4 of the present application is
During transportation in the transport section of the tubular film (12a) until the tubular film (12a) is laterally sealed at the front-rear position of the article (18) supplied into the tubular film (12a) at predetermined intervals. A detection means (28) that irradiates an inspection wave composed of an electromagnetic wave that traverses the tubular film (12a) and detects the amount of the inspection wave transmitted over time, and a detection means (28).
A display means (54) that displays the object to be detected (18) detected over time as a transparent image from the detection value of the transmission amount by the detection means (28).
The display screen of the display means (54) includes articles (18) supplied at predetermined intervals in the tubular film (12a) obtained over time as the tubular film (12a) is conveyed. A transparent image (64,66) of the object (18) and an identification image (70) representing a dividing position capable of identifying the planned horizontal seal position on the tubular film (12a) being conveyed are both images (64). , 66,70) Equipped with a display control unit (50) that displays the positions of each other in a contrastable manner.
The display control unit (50) displays the transparent image (64,66) and the identification image (70) on the display means (54) as the tubular film (12a) transported in one packaging cycle is conveyed. ) Is displayed on the display screen in a lateral movement at a speed corresponding to the film transport speed of the packaging machine.
In the invention according to claim 6 , the display control unit (50) has the transmitted image (64,66) and the identification image (70) as the tubular film (12a) transported in one packaging cycle is transported. The feature is that the display screen of the display means (54) is laterally moved and displayed at a speed corresponding to the film transport speed of the packaging machine.
According to the inventions of claims 4 and 6 , in addition to the same effects as in claim 1, the transmission image of the object to be detected that changes during transportation of the tubular film and the separation of the tubular film in one packaging cycle. Since the identification image showing the position (start end or end) is displayed so as to continuously move laterally according to the film transfer speed in relation to the current position accompanying the transfer of the tubular film, it is conveyed in one packaging cycle. The positional relationship between the tubular film and the articles supplied in the tubular film at predetermined intervals can be accurately grasped from the displayed image.

The packaging inspection display device in the packaging machine of the invention according to claim 2 of the present application is
During transportation in the transport section of the tubular film (12a) until the tubular film (12a) is laterally sealed at the front-rear position of the article (18) supplied into the tubular film (12a) at predetermined intervals. A detection means (28) that irradiates an inspection wave composed of an electromagnetic wave that traverses the tubular film (12a) and detects the amount of the inspection wave transmitted over time, and a detection means (28).
A display means (54) that displays the object to be detected (18) detected over time as a transparent image from the detection value of the transmission amount by the detection means (28).
For the transmission of the inspection waves irradiated to the tubular film (12a), it determines the detection control unit in the tubular film (12a) of the height of the determination range set in some range (N1a, N2a) (38 ) And
On the display screen of the display means (54), a transmission image (64,66) of the object to be detected (18) obtained over time as the tubular film (12a) is transported, and a tubular film for one package (1 package). It is provided with an identification image (70) representing a division position in 12a) and a display control unit (50) for displaying the positions of both images (64,66,70) in a comparable manner.
The display control unit (50) displays, on the display screen of the display unit (54), before Symbol determination Priority determination range (N1a, N2a) distinguishably and to display superimposed on the transmitted image (64, 66) It is characterized by having done it.
According to the invention of claim 2 , in addition to the same action and effect as that of claim 1, the set determination range is superimposed on the transparent image of the object to be detected and displayed as an image, so that the inspection status can be properly grasped on the display screen. can do. Further, by setting the determination range in the height direction by the detector, the detection accuracy of the determination can be improved, and the components of the machine around the detection means can be excluded from the determination range. A good detection result can be obtained by reducing the detection defect rate.

According to the present invention, a transparent image of the object to be detected is displayed on the display means so that the position of the object to be detected corresponding to the position of the tubular film for one package can be grasped, so that the inspection result before packaging can be intuitively displayed. Can be grasped.

It is a schematic side view of the horizontal bag making filling machine which concerns on Example. It is a schematic plan view of the main part of the horizontal bag making filling machine which concerns on Example. It is a schematic vertical sectional view of the horizontal bag making filling machine which concerns on Example. It is explanatory drawing which shows the relationship between the X-ray which irradiates from the irradiator of the detection means which concerns on an Example, an article, and a tubular film. It is explanatory drawing which shows the screen display in the input / display means which concerns on embodiment.

Next, the packaging inspection display device in the packaging machine according to the present invention will be described below with reference to the accompanying drawings with reference to examples.

FIGS. 1 and 2 show a schematic configuration of a horizontal bag-making filling machine which is a packaging machine according to an embodiment, and the packaging machine is made of aluminum vapor deposition, aluminum-laminated aluminum packaging material, or Japanese paper-laminated. A bag-making means 14 for forming a strip-shaped film 12 drawn from a film roll 10 of a packaging material whose inside of a package such as a film is invisible, and forming a tubular shape by superimposing both end edges in the longitudinal direction in a palm-like shape downward. The film transporting means 16 that sandwiches and conveys the overlapping portion 12b of the obtained tubular film 12a between a pair of feed rollers 16a and 16a, and a supply conveyor that supplies articles 18 toward the tubular film 12a at predetermined intervals. The vertical sealing means 22 and the vertical sealing means 22 for forming the vertical sealing portion 24 on the overlapping portion 12b by sandwiching the polymerized portion 12b polymerized in a palm-like shape through the bag making means 14 with a pair of seal rollers 22a and 22a. A lateral seal portion is formed by sandwiching the tubular film 12a at the front and rear positions of the article 18 supplied into the tubular film 12a downstream from the sealing means 22 and sealing the tubular film 12a in a direction intersecting the transport direction of the tubular film 12a. Each of the sealing means 26 is provided, and the vertical sealing means 22 and the horizontal sealing means 26 intersect the tubular film 12a being conveyed and irradiate the X-ray as an inspection wave in the form of a narrow beam. The detection means 28 is arranged. Then, the detection means 28 is configured to be able to detect the presence or absence of misalignment of the articles 18 supplied to the inside of the tubular film 12a at predetermined intervals and the articles biting into the vertical seal portion 24. Will be done. Such articles (fragments of articles, debris, and other foreign substances) bitten into the vertical seal portion 24 are collectively referred to as bitten articles. In this embodiment, the article 18 in the tubular film and the bitten article existing in the vertical sealing portion 24 are the objects to be detected by the detecting means 28.

On the downstream side of the bag-making means 14, a transport bed 30 for guiding the article 18 supplied in the tubular film 12a via the film is arranged. As shown in FIG. 2, the transport bed 30 includes mounting portions 30a, 30a, 30b, 30b arranged on the left and right, and a gap S defined between both mounting portions 30a, 30a, 30b, 30b. Is guided so that the polymerization portion 12b extends downward. Then, the polymerization portion 12b extending below the transport bed 30 is sandwiched and conveyed by the feed rollers 16a, 16a, and is conveyed by a pair of seal rollers 22a, 22a arranged downstream of the feed rollers 16a, 16a. It is sandwiched to form a vertical seal portion. In this way, the polymerization portion 12b is downward (up and down) from the tubular portion 32 in which the article 18 in the tubular film 12a is housed in a predetermined section from the bag making means 14 to the lateral sealing by the horizontal sealing means 26. It extends in a standing posture toward (direction), and is transported toward the downstream side in a state of extending downward from the gap S of the transport bed 30. The film transporting means 16 is provided with an encoder attached to a servomotor that rotationally drives the feed rollers 16a and 16a, and a pulse signal output from a pulse transmitter such as the encoder is input to the packaging control unit 34. .. Then, the packaging control unit 34 can know the transport amount and the transport position of the tubular film 12a based on the encoder pulse of the film transport means 16 such as the feed rollers 16a and 16a. One side in the width direction (left-right direction) intersecting with the tubular film 12a sent by the film transport means 16 is set as the operation operation side of the packaging machine, and this operation side is the front side and the opposite side is the operation side. It shall be referred to as the back.

The strip-shaped film 12 drawn out from the film roll 10 is attached to the strip-shaped film 12 on which the packaging design or the like is printed in units of one packaging length in the transport path of the strip-shaped film 12 until the strip-shaped film 12 is formed into a tubular shape by the bag-making means 14. A mark sensor 36 for detecting the printed registration mark is arranged. The mark sensor 36 detects the passage of the cash register mark and inputs the detection signal to the packaging control unit 34, and the packaging control unit 34 conveys one package in one packaging cycle based on the input detection signal. The start end and end of the tubular film 12a of the above, and other delimiter positions can be obtained.

On the downstream side of the transport bed 30, there is a folding member 40 provided on the lower surface of the transport bed 30 and provided with diagonal pieces inclined downward across the gap S from one side of the gap S. A cylinder in which the article 18 is housed in the overlapping portion 12b from a posture of hanging from the lower surface of the tubular film 12a as the tubular film 12a is conveyed to the downstream side by the bent member 40. It is guided to gradually tilt until it bends along the lower surface of the shape portion 32.

As shown in FIG. 1, on the downstream side of the transport bed 30, a horizontal sealing means 26 provided with a pair of upper and lower sealing bodies 26a and 26a for laterally sealing and cutting the tubular film 12a is arranged. This horizontal sealing means 26 is an example in the case where a known box motion type is adopted, and each time a film to be continuously conveyed is conveyed for one packaging length during one packaging cycle, the inside of the tubular film 12a is used. By sandwiching the tubular film 12a between the sealing bodies 26a and 26a at the front and rear positions of the articles 18 supplied at predetermined intervals, a horizontal sealing portion is formed in a direction intersecting the conveying direction of the tubular film 12a. The operation is controlled. Then, since the polymerization portion 12b is bent by the bent member 40 along the lower surface of the tubular film 12a to be subjected to a horizontal seal, both ends of the vertical seal portion 24 applied to the polymerization portion 12b in the extending direction are applied. A pillow package product in which the horizontal seal portions intersect at the edges can be obtained. The facing ends of the carry-in conveyor 42 and the carry-out conveyor 44 provided upstream and downstream of the meshing position where the tubular film 12a is sandwiched between the seal bodies 26a and 26a are closely separated from each other by the seal bodies 26a and 26a of the lateral sealing means 26. In conjunction with the movement and the forward / backward movement operation, when the seal bodies 26a and 26a are separated from each other, the seal bodies 26a and 26a move close to each other so that the articles 18 in the tubular film 12a can be transferred between conveyors without any trouble. The transfer upstream end of the carry-in conveyor 42 is arranged at a position adjacent to the downstream end of the transfer bed 30 with a slight gap.

The presser conveyor 46 is arranged above the film transport path extending from the downstream side of the bag making means 14 to the downstream position beyond the arrangement position of the detection means 28. The presser conveyor 46 abuts on the upper surface of the tubular film 12a conveyed on the transport bed 30 and presses the upper surface of the article 18 supplied into the tubular film 12a at predetermined intervals in a light contact state. A plurality of guide members 46a made of a brush-like elastic body traveling at the same speed as the film transport speed are provided. As a result, the articles 18 supplied at predetermined intervals in the tubular film 12a can be assisted and fed without being displaced. The presser conveyor 46 may be adopted as needed, such as the properties of the article 18.

As shown in FIG. 1, a protective cover made of transparent resin that covers the space above the transport bed 30 from the upstream side of the arrangement position of the presser conveyor 46 to the downstream side of the arrangement position of the bending member 40. 48 is provided so as to be openable and closable. As shown in FIG. 3, the protective cover 48 covers the upper part of the transport bed 30 at a closed position that closes the upper space around the film transport path, and X-rays emitted from the irradiator 56 described later are emitted from the protective cover 48. Prevent it from leaking to the outside.

The packaging machine is driven and controlled by a packaging control unit 34 by a synchronous drive control signal so as to operate each of the servomotors that rotationally drive various operating mechanisms such as the supply conveyor 20, the film transporting means 16, and the lateral sealing means 26. .. An inspection control device 52 that controls the packaging control unit 34, the detection control unit 38, and the display control unit 50 in association with each other is provided, and is connected to the detection control unit 38 and the display control unit 50 to set various setting conditions and the like. The input / display means 54 including a touch panel capable of displaying input settings is provided. The display control unit 50 can recognize the start end and end of the tubular film 12a for one package obtained by the packaging control unit 34, and other delimiter positions. The display control unit 50 may obtain the start end and end of the tubular film 12a for one package and other delimiter positions by directly inputting the registration mark detection signal by the mark sensor 36.

In the transport section of the tubular film 12a on the upstream side of the horizontal sealing means 26 from the downstream end of the vertical sealing means 22 to the bent member 40, the tubular film 12a has the polymerization portion 12b. It is transported in a state of extending downward. Then, the detecting means 28 is provided in the transport section by irradiating the X-rays crossing the tubular film 12a to detect the amount of X-rays transmitted through the tubular film 12a and the overlapping portion 12b. As shown in FIGS. 2 and 3, the detection means 28 is arranged so that the irradiator 56 irradiates X-rays toward the back side on the front side of the film transport path, and the film faces the irradiator 56. The detector 58 is arranged on the back side of the transport path. The X-ray output unit 56a of the irradiator 56 and the X-ray detection unit 58a of the detector 58 face each other with a gap of the transport bed 30 divided into the upstream side and the downstream side, and irradiate from the irradiator 56. The X-rays are not blocked by the transport bed 30 or other structures before reaching the detector 58, and the detector 58 covers the entire height range from the upper part of the tubular film 12a to the vertical seal portion 24. Can be detected accurately.

As the irradiator 56, an X-ray irradiator that irradiates soft X-rays that have a weak penetrating power and can be sufficiently shielded by a resin cover is preferably used. The irradiator 56 irradiates the X-ray beam from the output unit 56a laterally in the direction intersecting the tubular film 12a being conveyed along the film transport path, and the X-ray beam spreads in a predetermined range in the vertical direction to irradiate the film. Will be done. As shown in FIG. 4, the irradiation range of the X-ray beam is directed downward from the passing position of the tubular portion 32 of the tubular film 12a mounted on the transport bed 30 and the gap S of the transport bed 30. It is set so as to cover the passing region of the vertical sealing portion 24 in the extending overlapping portion 12b. Further, the irradiator 56 is vertically applied to the polymerized portion 12b from the boundary position between the tubular portion 32 and the polymerized portion 12b in the tubular film 12a which is mounted and transported on the mounting surface of the transport bed 30. The output unit 56a is arranged so as to be located on the extension side of the seal unit 24, and the X-rays radiated laterally from the output unit 56a overlap with the article 18 and are vertically unobstructed until reaching the detector 58. The entire range of the extension length of the vertical seal portion 24 in the standing state is irradiated.

The detection unit 58a in the detector 58 is a line sensor in which a plurality of X-ray detection elements such as CMOS and photodiodes are continuously arranged in a straight line in the vertical direction, and is the said in the tubular film 12a being conveyed. It is configured so that the amount of X-rays transmitted across the tubular portion 32 and the overlapping portion 12b and reaching the detection portion 58a can be detected within a predetermined length range in the vertical direction thereof. As shown in FIG. 4, the upper region of the effective detection region L of the X-ray in the height direction by the detector 58 transmits the X-ray transmitted through the tubular portion 32 that moves the passing position of the tubular portion 32. It is set as the first detection area N1 for detecting the amount, and the first determination range N1a is set in the area within the first detection area N1. Further, the lower portion of the effective detection region L can detect the amount of X-rays transmitted through at least the formation range of the vertical seal portion 24 in the polymerization portion 12b that moves the passing position of the vertical seal portion 24. The second detection area N2 is set, and the second determination range N2a is set in the area within the second detection area N2. That is, each area such as the detection areas N1 and N2 and the determination ranges N1a and N2a is separately set in the effective detection area L. Specifically, the first detection region N1 is above the mounting surface of the transport bed 30 (the boundary position between the tubular portion 32 and the overlapping portion 12b) as a reference position and is the upper edge of the article 18. It is set as a detectable range corresponding to the irradiation X-rays up to. Further, the second detection area N2 is set as a detectable range corresponding to the lower edge of the vertical seal portion 24 corresponding to the irradiation X-ray on the lower side of the reference position. That is, the detector 58 is configured to be able to detect the amount of X-rays transmitted to each of the tubular portion 32 of the tubular film 12a and the formation range of the vertical seal portion 24 of the overlapping portion 12b. Further, the first determination range N1a is a part of the height range of the article 18 supplied in the tubular film 12a supported and transported on the mounting surface of the transport bed 30, and is at least. It is preferable that a region including a height range that is the maximum front-rear length of the article 18 is selectively set. Further, it is preferable that the second determination range N2a is selectively set to a region including at least the entire height range in which the vertical seal portion 24 is formed in the polymerization portion 12b.

The detector 58 detects the amount of X-ray transmission by a line sensor including a plurality of detection elements arranged one above the other. Then, the detected permeation amount of the object to be detected obtained for each line by the detector 58 is preset in each area of the first determination range N1a and the second determination range N2a. When the value is within the range of the threshold value (within the upper and lower limit range), the detection signal is output from the detection control unit 38 of the inspection control device 52 to the packaging control unit 34. In the embodiment, the detection control unit 38 determines whether or not a detection signal is output by comparing the transmission amount of the inspection wave in a part of the determination ranges N1a and N2a of the height of the tubular film 12a with the threshold value. There is. In the determination result in the first determination range N1a, when the detected permeation amount is a value within the threshold range, it is assumed that the presence of the article 18 is recognized in the tubular film 12a, and the packaging control unit 34 is determined. A detection signal is output. Further, in the determination result in the second determination range N2a, when the detected permeation amount is a value within the threshold range, it is assumed that the vertical seal portion 24 has the bitten article, and the packaging control unit 34 is determined. The detection signal is output. Then, when the detection signal in the first determination range N1a is output from the detection control unit 38, the packaging control unit 34 determines that the detected article has the length of the tubular film 12a in one packaging cycle obtained by the encoder. The relationship determines whether or not the accommodation position is allowed. Then, in the packaging control unit 34, the article 18 is moved to the sealing bodies 26a, 26a in relation to the position where the horizontal sealing means 26 sandwiches the tubular film 12a and laterally seals the film (the meshing position of the sealing bodies 26a, 26a). If it is determined that the area is within the area where there is a risk of contact, an alarm is issued regarding the occurrence of defective products and a screen is displayed on the display means of the packaging machine regarding the occurrence of an abnormality. Further, since the time when the film 12a for one packaging cycle corresponding to the defect detection portion is conveyed to the position where the film 12a for one packaging cycle is laterally sealed by the horizontal sealing means 26 can be obtained by the encoder or the like, it is possible to obtain the time when the film 12a is conveyed. At the same time, various operating mechanisms such as pausing the horizontal sealing operation of the horizontal sealing means 26 and suspending the packaging operation of the packaging machine are controlled. Further, when a signal is input to the packaging control unit 34 that an article bitten by the vertical seal portion 24 is detected in the determination result in the second determination range N2a, the occurrence of an abnormality is notified in the same manner as described above. In accordance with the time when the tubular film 12a for one package corresponding to the detection location is horizontally sealed and transported to the position where it is carried out as a packaged packaged product, the system is used as a defective packaged product at the carrying-out position. An operation control signal such as discharging to the outside is output from the packaging control unit 34.

As shown in FIG. 5, in the input / display means 54, an inspection data display unit 60 is arranged at the lower part of the display screen, and an inspection is performed in an area occupying approximately two-thirds of the entire display screen at the upper part of the screen. The image display unit 62 is arranged. The display control unit 50 displays a transparent image of the first detection area N1 on the first display area 62a on the upper side of the inspection image display unit 62, and the display control unit 50 displays the transmitted image in the second display area 62b following the lower side. A transparent image of the second detection area N2 is displayed. In the upper first display area 62a, the detection image of the article 18 in the tubular film 12a obtained from the detection value of the X-ray transmission amount detected in the first detection area N1 is displayed as the first transmission image. The detection image of the bitten article obtained from the detection value of the amount of X-ray transmission detected in the second detection area N2 is displayed in the second display area 62b as 64, and is displayed as the second transmission. It is displayed as an image 66. The first and second transparent images 64 and 66 display the first detection area N1 and the second detection area N2 as transparent images without a boundary. Specifically, the display control unit 50 detects the amount of X-rays transmitted over time as the tubular film 12a is conveyed in the transmitted image of the inspection wave applied to the tubular film 12a being conveyed. As a transparent image obtained by image processing based on the detected value of, it is represented as a black filled image by binarization in which the entire image of the article 18 including the outline of the object to be detected can be seen. Further, the transparent image of the object to be detected is displayed as a moving image whose position changes so as to move laterally on the screen as the tubular film 12a is conveyed. In FIG. 5, a part of the guide member 46a in the presser conveyor 46 is included in the first detection area N1, and the display state is included according to the actual screen display. Further, the boundary portion representing the tubular portion 32 and the vertical seal portion 24 of the tubular film 12a is not actually displayed on the screen, but the two-dot chain line is used to contribute to the explanation in the inspection image display unit 62. Is illustrated by.

A timing image display unit 68 is provided below the inspection image display unit 62 on the display screen of the input / display means 54. The display control unit 50 displays a timing image of an identification image in a form in which the partition position (start end or end) of the tubular film 12a for one package obtained based on the registration mark detection signal by the mark sensor 36 can be discriminated. Displayed in part 68. Specifically, the display control unit 50 is positioned so that the tubular film 12a is sandwiched between the sealing bodies 26a and 26a in the lateral sealing means 26 and laterally sealed according to the film length of one package conveyed in one packaging cycle. In relation to the above, the start end (start point) and end (end point) of the region (bite danger region) where the article 18 may come into contact with and bite during the sealing operation of the seal bodies 26a, 26a (bite danger region). The identification image in the form of the timing diagram 70 is displayed on the timing image display unit 68 so that the boundary with the timing image 70 can be discriminated. When the intermediate position of the biting danger region in the timing diagram 70 is a position where the tubular films 12a are sandwiched between the sealing bodies 26a and 26a and laterally sealed, the next biting danger region is started from the intermediate position. Up to the intermediate position of the above can be recognized as the start end and the end of the tubular film 12a for one package conveyed in one package cycle. Further, the timing diagram 70 as an identification image is displayed vertically side by side with the transmitted images 64, 66 of the object to be detected so as to be comparable to the dividing position in the tubular film 12a for one package.

The inspection data display unit 60 is provided with a first data display unit 72 for detecting the position of the article and a second data display unit 74 for detecting the bitten article of the vertical seal unit 24, which are divided into upper and lower parts. The first data display unit 72 is provided with a display unit 72a that displays the upper and lower limit set values of the first determination range N1a, and the detection that detects the transmission amount of the inspection wave in the first determination range N1a. A display unit 72b for displaying the upper and lower limit ranges of the threshold value of the detection resolution in the device 58 is provided. Further, in the second data display unit 74, similarly to the first data display unit 72, the display unit 74a for displaying the upper and lower limit set values of the second determination range N2a and the second determination range N2a are provided. A display unit 74b for displaying the upper and lower limit ranges of the threshold value of the detection resolution by the detector 58 is provided. The first and second determination ranges N1a and N2a erroneously make a structure such as a device existing around the detection area N1 and N2 of the inspection wave by the X-ray beam, such as the guide member 46a of the presser conveyor 46. In order not to detect, the determination ranges N1a and N2a are defined so as to obtain the detection values of the specific ranges within those areas corresponding to the respective detection areas N1 and N2. The determination ranges N1a and N2a specify the determination ranges N1a and N2a in the height direction in order to improve the detection accuracy of the object to be detected composed of the article 18 in the tubular film 12a or the bitten article in the vertical seal portion 24. It is preferable to specify within the range of. Then, regarding the first determination range N1a set as the determination range of the permeation amount for the detection of the article 18 in the tubular film 12a, as shown in FIG. 5, the portion where the front-rear length of the article 18 is the longest is defined. Set as the included height range. Further, the second determination range N2a for detecting the bitten article in the vertical seal portion 24 is specified to be a height within the formation range of the vertical seal portion 24 in which the films are adhered to each other in the polymerization portion 12b. .. By specifying the range in this way, it is possible to shorten the time required to obtain the determination result, and it is expected that the memory capacity of the control device can be suppressed.

A film speed display unit 76 is provided in the center of the inspection data display unit 60, and a level setting button 78 is displayed and arranged below the film speed display unit 76. Then, by touching the level setting button 78, the setting screen for inputting and setting the condition setting data for each of the determination ranges N1a and N2a is displayed as a separate window, and the operation buttons and the operation buttons appearing on the screen are displayed. It is configured to change and set the upper and lower limit setting values and threshold values of the respective determination ranges N1a and N2a by a touch operation such as a numerical input key. Further, the inspection data display unit 60 is provided with an inspection information display unit 79 that indicates an inspection status such as during X-ray irradiation or inspection.

In the inspection image display unit 62, the values input and set as the upper and lower limit setting values of the determination ranges N1a and N2a by the input / display means 54 are the first data display unit 72 and the second data display. Displayed in each of the units 74, the display control unit 50 indicates a boundary between the upper and lower limits as a determination range according to the value, for example, a pair of straight lines 80a and 80b composed of two solid red lines separated vertically. , 82a, 82b are displayed on the screen at positions overlapping the transmitted images 64, 66 of the object to be detected composed of the article 18 or the bitten article. Specifically, as shown in FIG. 5, when the first determination range N1a for determining the position of the article in the tubular film 12a is set in the middle portion in the height direction of the article 18, when the first determination range N1a is set in the middle portion in the height direction of the article 18. The image representing the first determination range N1a is located in the middle of the height direction of the transmission image 64 of the article 18 at a position corresponding to the upper and lower limit set values of the first determination range N1a set by data, and is above and below. The two straight lines 80a and 80b are represented as an image that overlaps the transparent image 64 of the article 18. Further, when the second determination range N2a for determining the biting of the article into the vertical seal portion 24 is set, the seal of the polymerization portion 12b extending below the tubular portion 32 in which the article 18 is housed. It is set to a predetermined height range corresponding to the part. Then, according to the set value, the two horizontal lines representing the upper and lower limit set values are separated from each other corresponding to the second determination range N2a which is a predetermined range in the vertical direction of the vertical seal portion 24. The image is displayed. Then, at the time of detecting the bitten article on the vertical seal portion 24, two upper and lower straight lines 82a and 82b are superposed on the transparent image 66 according to the bitten position of the bitten article. The lines 80a, 80b, 82a, 82b representing the upper and lower limit set values with respect to the determination ranges N1a and N2a on the display screen are displayed as solid lines, but these are represented by alternate long and short dash lines in FIG. 5 for the sake of explanation. .. Further, the lines 80a, 80b, 82a, 82b representing the upper and lower limit set values are arranged in a color different from the black display color of each of the transparent images 64,66 (red in this embodiment), and at least the transparent images 64,66 It suffices if a color that can be identified as a line is selected at the boundary portion with and the boundary portion with the background image on the display screen.

Here, the film speed displayed on the film speed display unit 76 is the same as the film speed of the packaging machine, and the input data is displayed when the data is input by the input / display means 54, and the display control unit is displayed. The transmission images 64, 66 of the object to be detected displayed on the inspection image display unit 62 and the timing diagram displayed on the timing image display unit 68 at a speed corresponding to the film transport speed of the packaging machine set by 50. The screen is displayed by a moving image so that the 70 and the 70 move horizontally. In this embodiment, the film speed is a value input for screen display, but the current film speed value can be displayed by obtaining the amount of film conveyed from the encoder, or the film in the packaging control unit 34. It is also possible to use the film speed value obtained by inputting the transport control data. Then, with the transfer of the tubular film 12a, the display control is performed so that the transmission images 64, 66 and the timing diagram 70 as the identification image move horizontally in the screen according to the set predetermined film transfer speed. Will be done. It is preferable that the input / display means 54 is provided with a display panel capable of displaying an independent inspection display result at a position adjacent to the touch panel, in addition to the touch panel for operating and displaying the packaging machine.

Next, the operation of the examples will be described. At the start of the packaging operation, the X-ray beam is radiated sideways from the irradiator 56. The X-rays emitted to the tubular film 12a being conveyed through the film transport path are detected by the detector 58, and the detected image obtained by processing the detected value of the X-ray transmission amount is input / displayed. It is displayed on the inspection image display unit 62 of the means 54 (see FIG. 5). The inspection image display unit 62 displays lines 80a, 80b, 82a, 82b indicating the first determination range N1a and the second determination range N2a set by the input / display means 54. Further, the timing image display unit 68 of the input / display means 54 displays the timing diagram 70 for each packaging cycle of the packaging machine obtained based on the registration mark detection signal by the mark sensor 36.

The X-rays radiated to the tubular film 12a being conveyed through the film transport path are continuously detected by the detector 58 as the tubular film 12a is conveyed, and the X-ray transmission obtained over time is obtained. When the amount is within the threshold range, the transparent images 64 and 66 of the entire article 18 or the bitten article obtained by image processing the detected value of the transmitted amount are displayed on the inspection image display unit 62. (See FIG. 5). In the first and second detection areas N1 and N2, by performing image processing on the detected value of the transmission amount within the threshold range, the entire transmission image 64, 66 of the article 18 or the bitten article can be displayed.

In this embodiment, the inspection image display unit 62 of the input / display means 54 has a first transmission image 64 and a vertical seal portion 24, which are detection images of the article 18 in the tubular portion 32 of the tubular film 12a being conveyed. The second transmission image 66, which is a detection image of the bitten article, and the timing diagram 70, which can recognize the start and end of the tubular film 12a for one package, are shown in the positional relationship of the images 64, 66, 70. Since the display is distinguishable, the operator can position the tubular film 12a for one package with the article 18 or the bitten article simply by looking at the images displayed on the inspection image display unit 62 and the timing image display unit 68. You can intuitively recognize the relationship. Further, since X-rays are used as the inspection wave, the positions of the article 18 and the bitten article can be grasped at a glance even when a film containing an aluminum material and the inside cannot be seen is used. .. Further, since the timing diagram 70 as an identification image is displayed as an image in which at least the boundary of the region where the article 18 may be bitten by the horizontal sealing means 26 can be recognized, the position of the article 18 in the tubular film and the transportation are being carried out. The positional relationship with the horizontal seal position on the tubular film 12a can be seen at a glance from the image. Moreover, since the misalignment state of the article 18 with respect to the tubular film 12a can be seen from the image, it is possible to take corrective and prompt measures against the defective factors. That is, since the misalignment status of the article 18 can be seen on the screen, when the sealing timing is set / corrected by the horizontal sealing means 26, the misalignment status of the article 18 can be accurately confirmed on the screen. .. Further, since it is possible to intuitively know the position of the bitten article of the vertical seal portion 24 in relation to the position of the start end or the end end of the tubular film 12a for one package by the screen display, the bite can be intuitively known. It is possible to investigate the factors and take other measures appropriately.

Since the first transparent image 64 showing the article 18 detected by the detection means 28 and the second transparent image 66 showing the bitten article are displayed on one screen in comparison with the timing diagram 70, the cause of failure is Can be identified at a glance. Further, since the transparent images 64, 66 and the timing diagram 70 of the article 18 and the bitten article are moved and displayed along with the transportation of the tubular film 12a, the tubular film 12a and the article transported in one packaging cycle are displayed. 18 and the positional relationship of the bitten article can be intuitively recognized. Further, the positional relationship between the tubular film 12a and the article 18 and the bitten article can be continuously recognized. Further, since the planned horizontal seal position by the horizontal seal means 26 can be recognized by the timing diagram 70, the relationship between the article 18 shown in the first transmission image 64 displayed together with the timing diagram 70 and the planned horizontal seal position can be understood. The degree of misalignment of the article 18 with respect to the planned position of the horizontal seal can be easily determined from the screen display.

By inputting the feed position of the film for one package from the packaging control unit 34 of the packaging machine such as the registration mark detection signal by the mark sensor 36 to the display control unit 50, the tubular film 12a conveyed in one packaging cycle. Since the partition position can be recognized, even if the order is changed, the timing image display unit 68 does not need to perform the setting operation for displaying the position of the tubular film 12a by the operator. It can be automatically reflected in the display timing diagram 70.

In this embodiment, in each of the first detection area N1 and the second detection area N2, the determination ranges N1a and N2a in the detection means 28 are set, and the lines 80a and 80b indicating the determination ranges N1a and N2a are set. Since 82a and 82b are superimposed on the transparent images 64 and 66, the inspection status of the defect determination can be properly grasped by the screen display. Further, since the appropriate determination ranges N1a and N2a can be set according to the shape and size of the article 18, the detection accuracy of the defect determination can be improved. Further, since the determination range N1a and N2a can be set so as not to detect the constituent parts of the machine around the detection means 28, the detection defect rate can be reduced and a good detection result can be obtained.

(Change example)
The present invention is not limited to the configuration of the examples illustrated above, and various embodiments can be adopted within the scope of the gist of the present invention. For example, modifications are implemented as follows. It is possible.
(1) In the embodiment, the misalignment of the article 18 in the tubular film and the bitten article existing in the vertical seal portion 24 are detected, but only one of them is detected. You may.
(2) In the embodiment, the detection means 28 is arranged so as to irradiate the tubular film 12a with X-rays laterally for detection, but the tubular film 12a may be irradiated with an inspection wave at an angle or may be detected. As for the arrangement of the detection means 28, such as irradiating in the vertical direction, various arrangements that can be detected by irradiating the inspection target portion with the inspection wave can be adopted.
(3) The inspection wave is a near-infrared ray, a terahertz wave, or various other electromagnetic waves, and the transmitted image of the object to be detected obtained by image processing the detected value of the transmitted amount transmitted through the tubular film 12a is tubular. Anything that can be displayed on the screen in relation to the position of the film 12a may be used.
(4) The screen display of the input / display means 54 is represented by a moving image in which the image moves in the actual film transport direction at the same speed as the transport speed of the tubular film 12a, but at a speed slower than the film transport speed. The display format is such that the image is moved, it is temporarily displayed as a still image when a defect is notified, or the still image is switched and displayed according to the timing of each packaging cycle. May be good.
(5) The transparent images 64, 66 of the article 18 or the bitten article and the timing diagram 70 are displayed separately on the input / display means 54 by arranging them vertically. It may be displayed in an overlapping manner so that the positional relationship of the bitten articles can be understood. That is, as long as the detected object, the timing diagram 70, and their positional relationship can be understood at a glance, the specific display form may be expressed in any way.

(6) In the embodiment, the determination ranges N1a and N2a are superimposed on the transmitted images 64 and 66 of the object to be detected, and the first determination range N1a and the second determination range N2a are placed on the screen on the upper and lower limit lines 80a. , 80b, 82a, 82b are used for display, but the display form and the presence / absence of display are optional items.
(7) In the embodiment, the display of the determination ranges N1a and N2a is a transparent image of the object to be detected as continuous straight lines 80a, 80b, 82a and 82b so that the upper and lower limits of the determination ranges N1a and N2a can be discriminated. Although the screen display is represented by an identification image in a state of overlapping 64 and 66, various display forms capable of discriminating the determination ranges N1a and N2a can be adopted without being limited to the display form. Moreover, such a display may be omitted if necessary.
(8) The input / display means 54 is also displayed with the detection image of the guide member 46a of the presser conveyor 46, but the display form excluding the detection area of the guide member 46a facing the effective detection area L is adopted. Can be done.
(9) The "inspection image display unit 62" and the "inspection data display unit 60" are arranged vertically on one screen in the input / display means 54, but at least the "inspection image display unit 62" is the only one. Is usually displayed in full screen, and the “inspection data display unit 60” may be configured as a separate screen that can be called as needed. In addition, a display screen configuration for displaying a part of the buttons in the "inspection data display unit 60", a plurality of selected operation button displays, a display of some set values, etc. as necessary shall be adopted. Can be done.
(10) Timing showing the bite danger area The display form of FIG. 70 shows the relationship between the positions of the transmitted images 64 and 66 of the object to be detected and at least the timing related to the bite position of the lateral sealing means 26 at a glance by looking at the screen. If it is displayed according to the above, it is not always necessary to directly display the bite danger area.

(11) Instead of the touch panel type input / display means 54, a mechanical input / setting means such as a keyboard or a button switch and a display means such as a display panel may be configured independently.
(12) The film used is a film made of various materials that is opaque and the inside of the tubular film cannot be seen from the outside. Various packaging in which the inside cannot be seen by printing on a plastic film made of various materials such as polypropylene. It can be applied to films.
(13) In the embodiment, when the transparent image 64 of the article 18 is displayed on the screen, it is exemplified as a form in which the inspection article is binarized and the inspection article is displayed on the screen by painting with black, but the display is reversed and the inspection article is white. A screen display that is omitted, a gradation display such as a gray display when the transmission amount of the inspection wave differs depending on the part of the article 18, or a color display having a gradation corresponding to the different transmission amount. Various display forms such as
(14) In the embodiment, the tubular film 12a in which the overlapping portion 12b extends downward from the tubular portion 32 is inspected, but the tubular film 12a has a overlapping portion upward from the tubular portion 32. The 12b may be extended, and the irradiator 56 and the detector 58 may be arranged according to the form.

10 film roll, 12 strip film, 12a tubular film, 12b overlapping part 14 bag making means, 18 article (object to be detected), 24 vertical sealing part, 26 horizontal sealing means 28 detecting means (X-ray detecting means), 36 mark Sensor, 38 Detection control unit 50 Display control unit, 54 Input / display means (display means), 56 Irradiator, 58 Detector 64 First transmission image, 66 Second transmission image, 70 Timing diagram (identification image)
N1a first judgment range, N2a second judgment range

Claims (9)

In the transport section of the tubular film until the tubular film is laterally sealed at the front and rear positions of the articles supplied into the tubular film at predetermined intervals, an inspection wave consisting of electromagnetic waves traversing the tubular film being transported is emitted. A detection means that irradiates and detects the amount of transmission of the inspection wave over time,
A display means for displaying an object to be detected over time as a transparent image based on the value of the transmission amount detected by the detection means.
On the display screen of the display means, a transmission image of an object to be detected containing an article supplied in the tubular film at predetermined intervals, which is obtained over time as the tubular film is conveyed, and a tubular film being conveyed. lateral sealing position scheduled identifiable and an identification image representing the separator position, to be identified by comparing the position of the both images each other, transmission before and after sandwiching the identification image that moves along with the conveyance of the tubular film in packaging inspection display device in the packaging machine, characterized by comprising a display control unit that obtained displayed together with identification image includes an image. In the transport section of the tubular film until the tubular film is laterally sealed at the front and rear positions of the articles supplied into the tubular film at predetermined intervals, an inspection wave consisting of electromagnetic waves traversing the tubular film being transported is emitted. A detection means that irradiates and detects the amount of transmission of the inspection wave over time,
A display means for displaying an object to be detected over time as a transparent image based on the value of the transmission amount detected by the detection means.
A detection control unit that determines the amount of transmission of the inspection wave irradiated to the tubular film in a determination range set in a part of the height of the tubular film.
On the display screen of the display means, a transparent image of the object to be detected obtained over time as the tubular film is conveyed and an identification image showing a dividing position in the tubular film for one package are displayed on the display screen of both images. It is equipped with a display control unit that displays the position in a contrastable manner.
The display control unit is a packaging inspection display device in a packaging machine, characterized in that the determination range is identifiable and displayed on the display screen of the display means so as to be superimposed on the transparent image. In the transport section of the tubular film until the tubular film is laterally sealed at the front and rear positions of the articles supplied into the tubular film at predetermined intervals, an inspection wave consisting of electromagnetic waves traversing the tubular film being transported is emitted. A detection means that irradiates and detects the amount of transmission of the inspection wave over time,
A display means for displaying an object to be detected over time as a transparent image based on the value of the transmission amount detected by the detection means.
On the display screen of the display means, a transmission image of an object to be detected containing articles supplied in the tubular film at predetermined intervals, which is obtained over time as the tubular film is conveyed, and a tubular film being conveyed. It is provided with a display control unit that displays an identification image representing a division position, which can identify the planned position of the horizontal sticker in the above, and the positions of the two images in a comparable manner.
On the display screen of the display unit, the inspection image display unit for displaying a transmission image, the identification image packaging inspection display device in packaging EARLY characterized by an image display unit that displays provided side by side up and down .. In the transport section of the tubular film until the tubular film is laterally sealed at the front and rear positions of the articles supplied into the tubular film at predetermined intervals, an inspection wave consisting of electromagnetic waves traversing the tubular film being transported is emitted. A detection means that irradiates and detects the amount of transmission of the inspection wave over time,
A display means for displaying an object to be detected over time as a transparent image based on the value of the transmission amount detected by the detection means.
On the display screen of the display means, a transmission image of an object to be detected containing articles supplied in the tubular film at predetermined intervals, which is obtained over time as the tubular film is conveyed, and a tubular film being conveyed. It is provided with a display control unit that displays an identification image representing a division position, which can identify the planned position of the horizontal sticker in the above, and the positions of the two images in a comparable manner.
The display control unit displays the transmission image and the identification image on the display screen of the display means at a speed corresponding to the film transfer speed of the packaging machine as the tubular film is conveyed in one packaging cycle. packaging inspection display device in packaging EARLY characterized in that so as to traverse the display. The packaging machine according to claim 2 or 4 , wherein an inspection image display unit for displaying the transparent image and an image display unit for displaying the identification image are provided vertically on the display screen of the display means. Packaging inspection display device in. The display control unit displays the transmission image and the identification image on the display screen of the display means at a speed corresponding to the film transfer speed of the packaging machine as the tubular film is conveyed in one packaging cycle. The packaging inspection display device in the packaging machine according to claim 2, wherein the horizontal movement display is provided. The display control unit can discriminate the region where the article may be bitten by the horizontal sealing means for laterally sealing the tubular film, and supplies the identification image to the tubular film as the object to be detected. The packaging inspection display device in a packaging machine according to any one of claims 1 to 6, wherein the transparent image of the article is displayed on the display screen of the display means. The display control unit displays, as a transmission image of the object to be detected, on the display screen of the display means, a foreign matter caught in the polymerization portion extending from the tubular portion in which the article is housed in the tubular film. The packaging inspection display device in the packaging machine according to any one of claims 1 to 7, wherein the packaging inspection display device is characterized in that. A mark sensor for detecting registration marks made on the film at predetermined intervals is provided in the transport path of the strip-shaped film from the film roll to the bag making means.
The display control unit displays the identification image of the display means according to the dividing position of the tubular film for one package conveyed in one packaging cycle, which is obtained from the result of the mark sensor detecting the registration mark. The packaging inspection display device in a packaging machine according to any one of claims 1 to 8, wherein the packaging is displayed on a display screen.

Images