JP7062295B2 - Packaging defect inspection device in bag making and filling machine - Google Patents

Description

The present invention relates to a packaging defect inspection device in a bag-making filling machine that wraps an article while molding a film.

Conventionally, an inspection device for inspecting whether or not foreign matter is present in a polymerized portion (center seal portion) of a tubular film formed by superimposing both left and right ends of the strip-shaped film in a palm-shaped manner while transporting the strip-shaped film has been known. ing. In Patent Document 1 or Patent Document 2, it is proposed that the polymerized portion can be irradiated with X-rays or the like from the side of the transport path, and that foreign matter can be accurately inspected in the polymerized portion based on the amount of transmitted transmission. ing.

Japanese Patent No. 6174558 International Publication No. 2018/012282

However, when such an inspection device is installed in a packaging machine and inspected, the ambient light enters the detection unit from the surroundings, and the light partially enters, resulting in uneven brightness. Dark unevenness is judged as a foreign substance, and as a result, the detection reliability is lowered.

An object of the present invention is to provide a packaging defect inspection device in a bag making / filling machine capable of enhancing the detection reliability of foreign matter and the like.

In order to solve the above problems, the packaging defect inspection device in the bag making and filling machine of the present invention takes the following means. First, the invention according to claim 1 is a polymerized portion (FTJ) extending from a tubular portion (FT1) in a tubular film (FT) formed while transporting a strip-shaped film (F) and superposed in a palm-shaped manner. In addition, a vertical seal is applied along the transport direction of the tubular film (FT), and at the position of the tubular film (FT) between the articles (P) sequentially housed in the tubular portion (FT1). The polymerization section (FTJ) is formed so that the bag-making filling machine that performs horizontal sealing along the direction intersecting the transport direction of the tubular film (FT) extends from the tubular portion (FT1) in an upright position. A light emitting unit (140A) that emits light toward the polymerization unit (FTJ) via the upright polymerization unit (FTJ) and a light receiving unit (150A) that receives light transmitted through the polymerization unit (FTJ). ) And the packaging defect in the bag-making filling machine configured to output a signal for determining whether or not foreign matter is present in the polymerization section (FTJ) based on the information obtained by the inspection device (100). The inspection device (100) is an inspection device, and the inspection device (100) contradicts the polymerization section (FTJ) extending from the transport path (20) in which the article (P) and the tubular portion (FT1) are conveyed. The light emitting part (140A) and the light receiving part (150A) are supported at separated positions, and the disturbance light that is reflected by the polymerization part (FTJ) and may travel toward the light receiving part (150A) is blocked. In addition, a hollow space region is formed between the light emitting unit (140A) and the light receiving unit (150A) so that the light receiving unit (150A) can receive the light transmitted through the polymerization unit (FTJ). The case (105) is provided adjacent to the transport path (20), and the polymerization path (20) is on the transport path (20) side of the case (105). A groove portion (S2) having a depth capable of accepting the portion (FTJ) is formed along the transport direction, and the polymerized portion (FTJ) is supported by the groove portion (S2) in the upright posture while the transport portion (FTJ) is supported. The bag-making filling machine is configured to be able to travel in the direction, and the bag-making filling machine is arranged on the vertical sealing means (60) for applying the vertical sealing and on the upstream side in the transport direction from the vertical sealing means (60). It has a film feeding means (30) that sandwiches the polymerization portion (FTJ) and feeds a tubular film in the transport direction, and is stretched between the film feeding means (30) and the vertical sealing means (60). The light emitting portion (140A) irradiates the polymerized portion of the tubular film (FT) with light. It is configured.

According to the first aspect of the present invention, the inspection apparatus (100) constitutes the case (105) so that light does not enter the space region inside the case (105) from the outside, and also passes through the groove portion (S2). Because the light emitting part (140A) and the light receiving part (150A) are supported at positions opposite to each other from the polymerization part (FTJ) via the polymerization part (FTJ) passing through the inside of the case (105). , It is possible to block the ambient light that may travel toward the light receiving part (150A), it is possible to clearly catch foreign matter and the like intervening in the tubular film (FT), and it is possible to suppress erroneous judgment as foreign matter. Can be done. Therefore, it is possible to provide a packaging defect inspection device in a bag making / filling machine that can improve the detection reliability of foreign matter and the like.

Further , when the overlapping portion (FTJ) of the tubular film (FT) is welded and sealed, the film surface may be deformed. Therefore, the light emitting portion (140A) in the region where the film surface is not deformed by the vertical sealing means (60). ), It is possible to further improve the detection reliability of foreign matter and the like.

Next, the invention according to claim 2 is a polymerized portion (FT1) extending from the tubular portion (FT1) of the tubular film (FT) formed while conveying the strip-shaped film (F) and superposed in a palm-shaped manner. The FTJ) is vertically sealed along the transport direction of the tubular film (FT), and the position of the tubular film (FT) between the articles (P) sequentially housed in the tubular portion (FT1). In addition, the polymerization section (FTJ) so that the bag-making filling machine that performs horizontal sealing along the direction intersecting the transport direction of the tubular film (FT) extends from the tubular portion (FT1) in an upright position. A light emitting unit (140A) that emits light toward the polymerization unit (FTJ) and a light receiving unit that receives light transmitted through the polymerization unit (FTJ) via the upright polymerization unit (FTJ). In a bag-making filling machine configured to output a signal for determining whether or not a foreign substance is present in the polymerization section (FTJ) based on the information obtained by the inspection device (100) having the (150A) opposed to the (150A). In the packaging defect inspection device, the inspection device (100) is a reciprocity from the polymerization section (FTJ) extending from the transport path (20) to which the article (P) and the tubular portion (FT1) are conveyed. The light emitting unit (140A) and the light receiving unit (150A) are supported at separate positions, and ambient light that can be reflected by the polymerization unit (FTJ) and travel toward the light receiving unit (150A) is emitted. A hollow space region is formed between the light emitting unit (140A) and the light receiving unit (150A) so that the light receiving unit (150A) can receive the light that is blocked and transmitted through the polymerization unit (FTJ). A formed case (105) is provided, and the case (105) is arranged adjacent to the transport path (20), and the transport path (20) side of the case (105) is on the transport path (20) side. A groove portion (S2) having a depth capable of accepting the polymerization portion (FTJ) is formed along the transport direction, and the polymerization portion (FTJ) is supported by the groove portion (S2) in the upright posture. It is configured to be able to travel in the transport direction, and an antireflection material is provided at a portion of the inner surface of the case (105) that constitutes the hollow space region.

According to the invention according to claim 2 , the inspection apparatus (100) constitutes the case (105) so that light does not enter the space region inside the case (105) from the outside, and through the groove portion (S2). Because the light emitting part (140A) and the light receiving part (150A) are supported at positions opposite to each other from the polymerization part (FTJ) via the polymerization part (FTJ) passing through the inside of the case (105). , It is possible to block the ambient light that may travel toward the light receiving part (150A), it is possible to clearly catch foreign matter and the like intervening in the tubular film (FT), and it is possible to suppress erroneous judgment as foreign matter. Can be done. Therefore, it is possible to provide a packaging defect inspection device in a bag making / filling machine that can improve the detection reliability of foreign matter and the like. Further, the antireflection material can suppress diffuse reflection of light in the hollow space formed by the case (105).

Next, the invention according to claim 3 is a polymerized portion (FT1) extending from the tubular portion (FT1) of the tubular film (FT) formed while conveying the strip-shaped film (F) and superposed in a palm-shaped manner. The FTJ) is vertically sealed along the transport direction of the tubular film (FT), and the position of the tubular film (FT) between the articles (P) sequentially housed in the tubular portion (FT1). In addition, the polymerization section (FTJ) so that the bag-making filling machine that performs horizontal sealing along the direction intersecting the transport direction of the tubular film (FT) extends from the tubular portion (FT1) in an upright position. A light emitting unit (140A) that emits light toward the polymerization unit (FTJ) and a light receiving unit that receives light transmitted through the polymerization unit (FTJ) via the upright polymerization unit (FTJ). In a bag-making filling machine configured to output a signal for determining whether or not a foreign substance is present in the polymerization section (FTJ) based on the information obtained by the inspection device (100) having the (150A) opposed to the (150A). In the packaging defect inspection device, the inspection device (100) is a reciprocity from the polymerization section (FTJ) extending from the transport path (20) to which the article (P) and the tubular portion (FT1) are conveyed. The light emitting unit (140A) and the light receiving unit (150A) are supported at separate positions, and ambient light that can be reflected by the polymerization unit (FTJ) and travel toward the light receiving unit (150A) is emitted. A hollow space region is formed between the light emitting unit (140A) and the light receiving unit (150A) so that the light receiving unit (150A) can receive the light that is blocked and transmitted through the polymerization unit (FTJ). A formed case (105) is provided, and the case (105) is arranged adjacent to the transport path (20), and the transport path (20) side of the case (105) is on the transport path (20) side. A groove portion (S2) having a depth capable of accepting the polymerization portion (FTJ) is formed along the transport direction, and the polymerization portion (FTJ) is supported by the groove portion (S2) in the upright posture. The bag-making filling machine is configured to be able to travel in the transport direction, and the bag-making filling machine transports the tubular film (FT) in the horizontal direction and extends downward from the tubular portion (FT1) in an upright position. This is a positive pillow type horizontal bag-making filling machine for forming the polymerization portion (FTJ), and the waste of the article (P) is discharged directly under the groove portion (S2) in the case (105). There is an outlet to obtain.

According to the third aspect of the present invention, the inspection apparatus (100) constitutes the case (105) so that light does not enter the space region inside the case (105) from the outside, and also passes through the groove portion (S2). Because the light emitting part (140A) and the light receiving part (150A) are supported at positions opposite to each other from the polymerization part (FTJ) via the polymerization part (FTJ) passing through the inside of the case (105). , It is possible to block the ambient light that may travel toward the light receiving part (150A), it is possible to clearly catch foreign matter and the like intervening in the tubular film (FT), and it is possible to suppress erroneous judgment as foreign matter. Can be done. Therefore, it is possible to provide a packaging defect inspection device in a bag making / filling machine that can improve the detection reliability of foreign matter and the like. Further, since the case (105) is provided with a discharge port (134) capable of discharging the dust of the article (P) directly under the groove portion (S2), the waste of the article (P) or the like is discharged. It can be dropped to the outside from (134). Therefore, it is possible to prevent the debris of the article (P) from accumulating in the inspection device (100) and being reflected in the inspection image.

The present invention can provide a packaging defect inspection device in a bag-making filling machine capable of enhancing the detection reliability of foreign substances and the like by taking the means of each of the above inventions.

It is a schematic side view which shows the schematic structure of the horizontal bag making filling machine which concerns on this embodiment. It is a schematic plan view which shows the schematic structure of the packaging defect inspection apparatus among the horizontal bag making filling machines which concerns on this embodiment. FIG. 3 is a cross-sectional view taken along the line III-III of FIG. It is an exploded perspective view of the packaging defect inspection apparatus.

Hereinafter, embodiments of the packaging defect inspection device in the bag-making filling machine of the present invention will be described with reference to the drawings.

As shown in FIG. 1, the bag-making filling machine continuously (or intermittently) conveys the strip-shaped film F and superimposes the left and right ends of the film F in a palm-shaped manner to form the film F with the overlapping portion FTJ. A tubular film FT composed of a shaped portion FT1 (see FIG. 3) is formed, and a vertical sealing means 60 is applied to a specific region of the superposed portion FTJ of the tubular film FT along the transport direction of the article P and the tubular film FT. Along with applying a vertical seal, the tubular portion FT1 intersects the position of the tubular film FT between the front and rear articles P accommodated at predetermined intervals (sequentially) with respect to the transport direction of the article P and the tubular film FT. This is a device for obtaining a package containing the article P by laterally sealing the film by the lateral sealing means 80 along the direction of the film. The bag-making filling machine in the present embodiment horizontally conveys the article P and the tubular film FT, and forms a polymerization portion FTJ extending downward from the tubular portion FT1 of the tubular film FT in an upright position. A positive pillow type horizontal bag filling machine will be described as an example.

The bag-making filling machine is provided with an inspection device 100 that constitutes a part of the packaging defect inspection device. In the inspection device 100, the lens unit 150A (light receiving unit) receives light transmitted through the polymerization unit FTJ extending from the tubular portion FT1 in an upright posture. Based on the information obtained from the inspection device 100, the control unit (not shown) determines whether or not foreign matter is present in the polymerization unit FTJ, and the packaging defect inspection device generates and outputs a signal indicating the result of the determination. It is configured. The control unit (not shown) in the present embodiment obtains detection information by the inspection device 100 described later and determines the presence or absence of foreign matter in the polymerization unit FTJ of the tubular film FT based on the image data generated by a well-known analysis processing method. .. In addition, the control unit provides information on the positions of the conveyor installed in the horizontal bag filling machine, the conveyor connected to the downstream side of the conveyor, and the encoder pulse attached to the film transfer motor in the horizontal bag filling machine. When it is acquired and it is determined that a foreign substance is present in the superposed portion FTJ of the tubular film FT, when a packaged product having a defective packaging is discharged from the horizontal bag filling machine in association with the information on the position. The reject device (not shown) is activated to discharge the product from the system, the operation of the horizontal bag filling machine is set, and the operation of the packaging machine is stopped by the touch panel display (not shown). Various measures can be taken.

As the tubular film FT used for packaging, an aluminum packaging material such as an aluminum vapor-deposited film or an aluminum laminate seal in which the inside of the package is invisible is used. In the description of the present embodiment, the directions indicated as "front and back", "left and right", and "up and down" are the same as "front and back" along the transport direction for transporting the tubular film FT containing the article P. The horizontal direction intersecting the transport direction is referred to as "left and right", the crossing in the same transport direction and the vertical direction is defined as "up and down", and these directions are appropriately indicated by arrows in each figure.

The horizontal bag-making filling machine includes a supply conveyor C1, a bag-making means 10, a pair of feed rollers 30 (film feeding means), and a pair of bar heaters 40 (heating device) from the upstream side to the downstream side in the transport direction. , A pair of drawing rollers 50, a pair of vertical seal rollers 60 (vertical sealing means), a stacking part folding piece 70, a crossing conveyor C2, a horizontal sealing means 80, a discharge conveyor C3, and a control unit (not shown). ) And.

The bag-making means 10 forms a strip-shaped film F drawn out from the film roll R into a tubular film FT. The supply conveyor C1 is a conveyor that supplies articles P toward the tubular film FT formed by the bag making means 10 at predetermined intervals.

The pair of feed rollers 30 (film feeding means) is formed by forming a laminated portion FTJ in which both ends of the tubular film FT intersecting in the longitudinal direction in the left-right direction are overlapped in a palm-shaped manner. Cylindrical film FT by the rotational driving force transmitted from a drive source (not shown), sandwiched from both sides in the left-right direction, which is the direction orthogonal to the feed direction and the direction in which the article P is conveyed (hereinafter referred to as the transfer direction). Is a roller that sends out to the downstream side in the transport direction.

The pair of bar heaters 40 (heating devices) are arranged on the downstream side in the transport direction from the pair of feed rollers 30 so as to be separated from each other to the left and right with respect to the polymerized portion FTJ of the tubular film FT, and preheat the polymerized portion FTJ. It is a device. The pair of drawing rollers 50 are rollers that rotationally support the polymerized portion FTJ of the tubular film FT from both the left and right sides on the downstream side of the pair of bar heaters 40 to change and suppress the overlapping length of the polymerized portion FTJ.

The pair of vertical seal rollers 60 (vertical sealing means) are arranged close to each other on the downstream side of the pair of drawing rollers 50, and drive the polymerized portion FTJ in which the sealant layer is heated by the bar heater 40 from both the left and right sides (not shown). It is a roller that welds the polymerized part FTJ of the tubular film FT (the end edges where both end edges in the left-right direction are overlapped in a palm-shaped manner) by sandwiching and heating while rotating by the driving force transmitted from the source. ..

The polymerization portion tilting piece 70 is formed in a polymerization portion FTJ in which a polymerization portion FTJ extending in an upright position from a tubular portion FT1 vertically sealed by a vertical seal roller 60 is connected to a tubular portion FT1 of the tubular film FT. Tilt from the vicinity of the base end portion J1 (root portion) so that the tip end portion J2 side of the polymerization portion FTJ opposite to the base end portion J1 approaches the tubular portion FT1 side of the tubular film FT.

The horizontal sealing means 80 sandwiches the tubular film FT at the front-rear position of the article P in the tubular film FT on which the overlapping portion FTJ of the tubular film FT is tilted, and laterally intersects the transport direction of the tubular film FT. It is a seal. The crossover conveyor C2 is a conveyor that constitutes a transport path for transporting the tubular film FT and the article P on the upstream side of the lateral sealing means 80. The discharge conveyor C3 is a conveyor that constitutes a transport path for transporting the tubular film FT and the article P on the downstream side of the horizontal sealing means 80.

As shown in FIGS. 1 and 2, the article P supplied in the tubular film FT is placed and conveyed between the bag making means 10 and the crossing conveyor C2 in the transport direction via the tubular film FT. A conveyor bed 20 (conveyor path) is arranged so as to be able to do so.

The transport bed 20 has a first transport bed 21, a second transport bed 122, and a third transport bed 23 so that the transport surface on which the article P is placed is flush with each other via the tubular film FT being molded. The beds are arranged side by side along the transport direction. The transport surface of the transport bed 20 is a second mounting portion 21A of the first transport bed 21 and a second transport bed 122 of the first transport bed 21 as a part of a transport path for transporting the article P or the tubular film FT being molded. It is composed of a placement portion 122A and a third mounting portion 23A of the third transfer bed 23.

Grooves S1, S2, and S3 defined between the left and right mounting portions are linearly aligned in the first mounting portion 21A, the second mounting portion 122A, and the third mounting portion 23A, respectively, along the transport direction. It is provided so as to line up with each other, and guides both end edges of the tubular film FT so as to extend downward to support the polymerized portion FTJ polymerized in a gassho shape. In the present embodiment, the polymerized portion FTJ of the tubular film FT extending downward (vertically downward) from the grooves S1, S2, S3 is in a stretched state by a feed roller 30 and a vertical seal roller 60, which are rotationally driven by a motor, respectively. Be transferred.

The second mounting portion 122A is composed of a thin plate-shaped flat plate having a thickness thinner than or equivalent to that of the first mounting portion 21A and the third mounting portion 23A, and is a case of the inspection device 100 in the packaging defect inspection device. It is composed of 105. That is, an inspection device 100 is provided between the pair of feed rollers 30 and the pair of bar heaters 40. In the inspection device 100 of the present embodiment, the strip-shaped film F guided from above the bag-making means 10 is formed into a cylindrical shape by the bag-making means 10, and both end edges in the left-right direction are below the transport bed 20 of the article P. A device configured to be able to inspect the presence or absence of foreign matter intervening between the edges of the tubular film FT, such as when the debris of the article P falls during polymerization on (the lower surface side of the article P). be.

As shown in FIGS. ..

The case 105 is formed of a member that shields external light, and an antireflection material is applied to the inner surfaces of the case first divided body 110 and the case second divided body 130. The case first divided body 110 has a first structure having a planar second mounting portion 122A extending in the horizontal direction and a side wall portion 123 hanging downward from the front-rear end edge of the second mounting portion 122A. It is composed of the body 122A1 and the second structure 122A2, and is screwed to the case second divided body 130 described later so that the first structure 122A1 and the second structure 122A2 are separated from each other on the left and right sides intersecting the transport direction. As a result, a groove-shaped groove S2 is formed in the central portion in the width direction of the transport path.

In the case second divided body 130, the lighting device 140 is mounted on one end side and the camera 150 is mounted on the other end side, and a bottomed box-shaped space with an upper opening is formed between them. ing. A groove-shaped groove S2 is formed in the central portion in the width direction of the transport path on each side wall 130A facing the front and rear in the transport direction of the case second divided body 130 forming this space. The groove portion S2 is formed to be slightly wider than the thickness of the polymerized portion FTJ, and is formed to a depth that allows the polymerized portion FTJ to be accepted. A transparent resin plate 133 is fitted on both sides of the second divided body 130 of the case with the groove S2 interposed therebetween.

Therefore, in the box-shaped space in the case second divided body 130, the first space 131 is formed by the light outlet 140A (light emitting portion) of the lighting device 140, the resin plate 133, and the front and rear side walls 130A, and the lens portion of the camera 150. The second space 132 is formed by the left and right side walls of the case second division 130 in which the 150A (light receiving portion) is embedded, the front and rear side walls 130A, and the resin plate 133, and the third space 132 is formed by the facing resin plate 133 and the front and rear side walls 130A. Space 133A is formed.

Further, a discharge port 134 penetrating downward is provided at the bottom of the case second divided body 130 at a position where the groove portion S2 is formed between the resin plates 133. This discharge port 134 is for dropping foreign matter such as debris of the article P intervening in the polymerization portion FTJ of the tubular film FT to the outside in order to prevent it from accumulating inside the inspection device 100. ..

In the case second division 130, a hollow space region is provided inside the case 105 between the light outlet 140A (light emitting unit) and the lens unit 150A (light receiving unit) by assembling the case first division 110. .. Since this hollow space region is formed so that the ambient light does not enter by covering the surroundings, the ambient light that can travel toward the lens portion 150A (light receiving portion) is blocked.

The space inside the second divided body 130 of the case is directed from the lighting device 140 (irradiation unit) side toward the camera 150 (detection unit) side in order to minimize the space area other than the range satisfying the angle of view θ described later. The light outlet 140A (light emitting portion) side of the lighting device 140 is formed so as to have a wider left-right width and a deeper depth than the side wall in which the lens portion 150A (light receiving portion) on the camera 150 side is embedded. In the present embodiment, by providing a step at the bottom position E of the case second divided body 130 to make the second space 132 shallow, the light emitted by the lighting device 140 is below the tip portion J2 of the overlapping portion FTJ. By advancing to the second space 132 on the camera 150 side through the space, it is suppressed that the image becomes unclear due to backlight. Further, the bottom surface of the case second divided body 130 on the space region side is parallel to, that is, horizontal to the second mounting portion 122A in order to reduce diffuse reflection of the light emitted by the lighting device 140 and reaching the lens portion 150A. It is formed to extend in the direction.

The lighting device 140 (irradiation section) irradiates infrared light from the light outlet 140A (light emitting section) in the left-right direction across the transport bed 20 (transport path) so as to pass through the layered section FTJ of the tubular film FT. It is an apparatus and functions as a backlight in this embodiment.

The camera 150 (detection unit) photographs the polymerization unit FTJ through which infrared light (light) is transmitted at each shooting interval (receives the light transmitted through the polymerization unit), and sequentially transfers the photographed data to the control unit. It is a device that outputs. The shooting interval by the camera 150 can be changed according to the transport speed of the tubular film FT. The camera 150 has an angle of view θ (detection area) set as shown in FIG.

The angle of view θ indicates the range actually captured by the camera 150 as an angle. The angle of view θ is a left-right direction intersecting the transport direction, and a substantially horizontal line along the inner surface side of the case first divided body 110 is set as a reference line H, and the main body of the tubular film FT with respect to the reference line H. It is an angle formed by the underline L pointing downward on the opposite side of the portion. The reference line H passes through the base end portion J1 in the polymerization portion FTJ, its extension line reaches the light outlet 140A (light emitting portion), and the underline L is the position E at the bottom of the case second division 130 and the polymerization portion. It circumscribes the tip portion J2 of the FTJ, and its extension line reaches the light outlet 140A (light emitting portion). As a result, the angle of view θ of the camera 150 is set so that the base end portion J1 to the tip end portion J2 of the layered portion FTJ is reflected as much as possible, and the light outlet 140A is set without passing through the layered portion FTJ. It is possible to reduce as much as possible the light that directly enters the lens unit 150A (light receiving unit) of the camera 150 from the (light emitting unit).

The article transporting device as described above has the following effects.
(1) The inspection device 100 comprises the case 105 by the case first divided body 110 (case) and the case second divided body 130 so that light does not enter the space area inside the case 105 from the outside, and the groove portion S2. The lens unit 150A is configured to arrange the camera 150 (detection unit) and the lighting device 140 which are opposed to each other at positions opposite to each other from the polymerization unit FTJ via the polymerization unit FTJ passing through the inside of the case. It is possible to block the ambient light that may travel toward the (light receiving portion), clearly catch foreign matter and the like intervening in the tubular film FT, and suppress erroneous determination as foreign matter. Therefore, it is possible to provide a packaging defect inspection device in a bag making / filling machine capable of improving the detection reliability of foreign matter and the like.
(2) Since the flat plate (face) in contact with the tubular film FT in the case first divided body 110 is formed in a thin plate shape, the range from the base end portion J1 to the tip end portion J2 of the layered portion FTJ by the camera 150. Can be widely photographed (inspected).
By configuring the case first split body 110 to also serve as the transport bed 20 (transport path) in the bag making and filling machine, the base end portion J1 is further inspected closer to the tubular portion FT1 of the polymerization portion FTJ. Can be done. Further, since the case first divided body 110 also serves as the transport bed 20 (transport path) in the bag-making filling machine, the number of parts can be suppressed.
(3) When the overlapping portion FTJ of the tubular film FT is welded and sealed, the film surface may be deformed. Therefore, in the region where the film surface is not deformed by the vertical seal roller 60 (vertical sealing means), the lighting device 140 By irradiating with infrared light, the reliability of detecting foreign matter can be further improved. More preferably, it is a region on the upstream side of the vertical seal roller 60 where the film surface is not deformed without being affected by the heat of the bar heater 40 which is preheated to the polymerized portion FTJ of the tubular film FT.
(4) The antireflection material can suppress diffuse reflection of infrared light in the hollow space formed by the case second dividing body and the case first dividing body 110.
(5) Since the case second divided body 130 is provided with a discharge port 134 penetrating in the thickness direction below the groove portion S2 is located, dust and the like of the article P can be dropped from the discharge port 134 to the outside. can. Therefore, it is possible to prevent the debris of the article P from accumulating in the inspection device 100 and being reflected in the inspection image.
(6) The reference line H defining the angle of view θ of the camera 150 passes through the base end portion J1 in the layered portion FTJ, and its extension line reaches the light outlet 140A (light emitting portion) to define the angle of view θ. L circumscribes the position E at the bottom of the second divided body 130 of the case and the tip portion J2 in the polymerized portion FTJ, and the extension line thereof reaches the light outlet 140A (light emitting portion), whereby the base end in the polymerized portion FTJ. The light from the part J1 to the tip part J2 can be reflected as much as possible, and the light directly entering the lens part 150A (light receiving part) of the camera 150 from the light outlet 140A (light emitting part) without passing through the overlapping part FTJ can be reflected as much as possible. Can be reduced.

<Change example>
(1) An embodiment in which the inspection device 100 is arranged in a positive pillow type horizontal bag-making filling machine formed by the polymerization unit FTJ under the tubular film FT is shown. It may also be used in a back-seal type horizontal pillow wrapping machine that forms the FTJ on the upper side of the tubular film FT, and in a horizontal three-way seal wrapping machine that forms the layered portion FTJ on the side of the tubular film FT. The inspection device 100 may be arranged in a vertical bag-making filling machine to inspect the superposed portion FTJ of the tubular film FT formed by superimposing the left and right edges of the strip-shaped film.
(2) Invisible light can be adopted as the detection wave, and it is preferable to adopt infrared rays having a wavelength longer than that of visible light JIS Z8120 [lower limit (360-400 nm) to upper limit (760-830 nm)].
(3) When the inspection device 100 is used for the horizontal bag-making filling machine, a discharge port 134 is provided at the bottom of the second division body 130 of the case to prevent dust and the like of articles from accumulating and being reflected in the inspection image. However, at the time of inspection, it may be closed to completely prevent the invasion of disturbance. In addition, a horizontal three-way seal packaging machine and a vertical bag-making filling machine do not require a discharge port.

F: Film FT: Cylindrical film FTJ: Polymerizing part FT1: Cylindrical part P: Article 20: Conveying bed (conveying path) S2: Groove 30: Feed roller (film feeding means) 60: Vertical seal roller (vertical sealing means)
100: Inspection device 105: Case 140A: Light outlet (light emitting part)
150A: Lens part (light receiving part) 134: Discharge port θ: Angle of view (detection area)

Claims (3)

The polymerized portion extending from the tubular portion of the tubular film formed while transporting the strip-shaped film and superposed in a palm-shaped manner is vertically sealed along the transport direction of the tubular film, and the tubular portion is formed. A bag-making filling machine that sequentially seals the positions of the tubular films between the articles housed in the portions along a direction intersecting the transport direction of the tubular films is in an upright position from the tubular portions. An inspection in which a light emitting portion that emits light toward the polymerized portion and a light receiving portion that receives light transmitted through the polymerized portion are arranged so as to face each other through the upright polymerized portion when the polymerized portion is formed so as to extend. A packaging defect inspection device in a bag-making filling machine configured to output a signal for determining whether or not foreign matter is present in the polymerized portion based on the information obtained by the device.
The inspection device is
The light emitting portion and the light receiving portion are supported at positions opposite to and separated from the polymerized portion extending from the transport path to which the article and the tubular portion are conveyed, and the light receiving portion is reflected by the polymerized portion to receive the light. A hollow space region is formed between the light emitting portion and the light receiving portion so that the light receiving portion can receive the light transmitted through the polymerized portion while blocking the disturbance light that may proceed toward the portion. Equipped with a case
The case is arranged adjacent to the transport path, and a groove portion having a depth capable of accepting the polymerized portion is formed along the transport direction on the transport path side of the case. The polymerized portion is configured to be able to travel in the transport direction while being supported in the upright posture .
The bag-making filling machine is
It has a vertical sealing means for applying the vertical sealing and a film feeding means which is arranged on the upstream side in the transport direction from the vertical sealing means and which sandwiches the polymerized portion and feeds the tubular film in the transport direction.
A packaging defect inspection device in a bag-making filling machine configured such that the light emitting portion irradiates the polymerized portion of the expanded tubular film between the film feeding means and the vertical sealing means . The polymerized portion extending from the tubular portion of the tubular film formed while transporting the strip-shaped film and superposed in a palm-shaped manner is vertically sealed along the transport direction of the tubular film, and the tubular portion is formed. A bag-making filling machine that sequentially seals the positions of the tubular films between the articles housed in the portions along a direction intersecting the transport direction of the tubular films is in an upright position from the tubular portions. An inspection in which a light emitting portion that emits light toward the polymerized portion and a light receiving portion that receives light transmitted through the polymerized portion are arranged so as to face each other through the upright polymerized portion when the polymerized portion is formed so as to extend. A packaging defect inspection device in a bag-making filling machine configured to output a signal for determining whether or not foreign matter is present in the polymerized portion based on the information obtained by the device.
The inspection device is
The light emitting portion and the light receiving portion are supported at positions opposite to and separated from the polymerized portion extending from the transport path to which the article and the tubular portion are conveyed, and the light receiving portion is reflected by the polymerized portion to receive the light. A hollow space region is formed between the light emitting portion and the light receiving portion so that the light receiving portion can receive the light transmitted through the polymerized portion while blocking the disturbance light that may proceed toward the portion. Equipped with a case
The case is arranged adjacent to the transport path, and a groove portion having a depth capable of accepting the polymerized portion is formed along the transport direction on the transport path side of the case. The polymerized portion is configured to be able to travel in the transport direction while being supported in the upright posture .
A portion of the inner surface of the case that constitutes the hollow space region is a packaging defect inspection device in a bag-making filling machine provided with an antireflection material . The polymerized portion extending from the tubular portion of the tubular film formed while transporting the strip-shaped film and superposed in a palm-shaped manner is vertically sealed along the transport direction of the tubular film, and the tubular portion is formed. A bag-making filling machine that sequentially seals the positions of the tubular films between the articles housed in the portions along a direction intersecting the transport direction of the tubular films is in an upright position from the tubular portions. An inspection in which a light emitting portion that emits light toward the polymerized portion and a light receiving portion that receives light transmitted through the polymerized portion are arranged so as to face each other through the upright polymerized portion when the polymerized portion is formed so as to extend. A packaging defect inspection device in a bag-making filling machine configured to output a signal for determining whether or not foreign matter is present in the polymerized portion based on the information obtained by the device.
The inspection device is
The light emitting portion and the light receiving portion are supported at positions opposite to and separated from the polymerized portion extending from the transport path to which the article and the tubular portion are conveyed, and the light receiving portion is reflected by the polymerized portion to receive the light. A hollow space region is formed between the light emitting portion and the light receiving portion so that the light receiving portion can receive the light transmitted through the polymerized portion while blocking the disturbance light that may proceed toward the portion. Equipped with a case
The case is arranged adjacent to the transport path, and a groove portion having a depth capable of accepting the polymerized portion is formed along the transport direction on the transport path side of the case. The polymerized portion is configured to be able to travel in the transport direction while being supported in the upright posture .
The bag-making filling machine is a positive pillow type horizontal bag-making filling machine that horizontally conveys the tubular film and forms the superposed portion that extends downward in an upright posture from the tubular portion.
A packaging defect inspection device in a bag-making filling machine provided with a discharge port capable of discharging the waste of the article immediately below the groove portion of the case .

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