JP6484472B2 - Vertical bag making and packing machine with zipper inspection equipment - Google Patents

Description

  The present invention relates to a vertical bag making and filling machine for manufacturing a bag having a zipper, and more particularly to a vertical bag making and filling machine provided with an inspection device for inspecting the quality of a zipper.

  This type of vertical bag making and filling machine is described in, for example, Patent Document 1 below. In the packaging machine of Patent Document 1, a film packaging material with a zipper attached is first formed into a cylindrical shape via a former (bag making guide), and then a bag filled with a product from the cylindrical packaging material. To complete. Therefore, the packaging machine of Patent Document 1 is provided with a zipper temporary attachment device (temporary heater, heater receiving portion), and this zipper temporary attachment device temporarily attaches the zipper to the film wrapping material.

Moreover, the packaging machine of patent document 1 is equipped with the zipper permanent attachment apparatus (a pair of permanent attachment heater) just under the horizontal sealer, and this permanent attachment apparatus has the zipper temporarily attached to the bag filled with the product. Make a book.
Furthermore, the packaging machine of Patent Document 1 is provided with a crushing device (end forming device), and the crushing device crushes both ends of the zipper prior to the temporary attachment of the zipper to ensure the sealing performance at these both ends. To do.

JP 2006-282189 A

By the way, in the case of the vertical bag making and filling machine of Patent Document 1 described above, a bag already filled with a product is completed without checking the quality of the zipper after the temporary attachment of the zipper. There is a risk that the bag will be manufactured.
Specifically, the zipper failure includes a shift in the zipper position with respect to the width direction and the feeding direction of the bag, excess or deficiency of the zipper length, inclination of the zipper, and the like. Specifically, a zipper position shift or an excessively long zipper length causes the zipper to break through from the side edge of the bag, thereby impairing the sealing performance of the bag.

On the other hand, if the zipper is inclined, not only will the zipper be installed incompletely, but the inner surfaces facing each other will be bonded directly at undesired locations. , Making the bag unopenable.
Furthermore, in the case of the vertical bag making filling and packaging machine of Patent Document 1, since the crushing state of both ends of the zipper is not inspected again, if the crushing here is poor, from both ends of the zipper It also causes a zipper failure that causes air to leak.

  The present invention has been made based on the above circumstances, and an object of the present invention is to provide a vertical bag making filling and packaging machine equipped with a zipper inspection device that can judge whether a zipper is good or bad when the zipper is temporarily attached. It is in.

The above object is achieved by a vertical bag making and filling machine according to the present invention,
The packaging machine further includes a zipper inspection device on the premise of using a film packaging material having at least one reference pattern as a reference for specifying the zipper position in the width direction and the feeding direction of the film packaging material. ,
The zipper inspection equipment
A camera device that is disposed between the zipper tacking device and the former, and photographs both ends of the tacked zipper together with the reference pattern;
An image determination device for determining the quality of the zipper based on the inspection image obtained from the camera device,
The image determination apparatus determines whether or not the inspection items of the end positions of the zipper with respect to the reference pattern, the zipper length, and the inclination angle of the zipper are within an allowable range (Claim 1).

According to the above-described vertical bag making filling and packaging machine, the zipper inspection device includes the camera device and the image determination device. Therefore, the zipper temporarily attached to the film wrapping material is immediately photographed by the camera device, and then the image determination is performed. Based on the inspection image obtained by using the camera device, the device determines pass / fail by these inspection items by specifying each of the end position of the zipper, the zipper length, and the inclination angle of the zipper with respect to the reference pattern.
By using the reference pattern for the determination here, when the film wrapping material is transparent, the end position of the zipper can be specified, and even if the film wrapping has meandering, the judgment has an adverse effect due to the meandering. Not receive.

  For example, the camera device includes a first camera and a second camera that are respectively arranged on one surface side of the film wrapping material and shoots both end portions of the zipper, and at least one of the first camera and the second camera is the reference pattern. Are photographed simultaneously (claim 2). Such an inspection device can be applied to a transparent film packaging material.

  On the other hand, the camera device is disposed on one surface side of the film wrapping material, and is disposed on the other surface side of the film wrapping material, and the first and second cameras that respectively photograph both end portions of the zipper. And a third camera that captures the reference pattern applied to the other surface at the same photographing timing as the second camera. In this case, the image determination device is respectively used by the first to third cameras. The inspection image is generated from the obtained individual captured images. Such an inspection apparatus according to claim 3 can be applied to either transparent or opaque film packaging material.

Furthermore, the vertical bag making filling and packaging machine of the present invention further includes a crushing device that crushes both end portions of the zipper to form a crushing portion prior to the temporary attachment of the zipper by the zipper temporary attachment device. The image determination device sets the area of the crushed portion as a further inspection item, and determines whether or not the inspection item is within an allowable range (claim 4).
The inspection apparatus according to claim 4 also determines whether or not the area of the crushed portion formed at both ends of the zipper is within an allowable range, that is, whether the sealing performance at the crushed portion is good or bad.

  Furthermore, the camera device of claim 2 or 3 further includes first and second covers for isolating between the first and second cameras and the film wrapping material to be photographed from the surroundings, respectively. The two covers incorporate a light source (claim 5). The camera device provided with such first and second covers enables photographing of both ends of the zipper without being affected by disturbance.

  The vertical bag making and packing machine provided with the zipper inspection device according to the present invention (Claim 1) is provided with the zipper inspection device between the zipper temporary attachment device and the former, so immediately after the zipper is temporarily attached. The quality of the zipper can be determined, and the determination result here can be used for determining whether or not the product can be filled into the bag, for example.

It is the schematic of the vertical bag making filling packaging machine provided with the zipper inspection apparatus which concerns on one Embodiment of this invention. It is the cross-sectional view which showed the zipper continuous body. It is the front view which showed the crushing apparatus of FIG. It is a bottom view of the anvil of FIG. It is a figure which shows the crushing area | region of the zipper continuous body formed with the crushing apparatus of FIG. 3, and the crushing part of a zipper, respectively. It is a figure which shows the outline of a zipper temporary attachment apparatus. It is a figure which shows the inner surface of the heater block in a zipper book attachment apparatus. It is a rear view of a bag with a zipper. It is the figure which showed the positional relationship of the 1st and 2nd reference | standard pattern provided to the film packaging material, and the temporarily attached zipper. It is the figure which each showed the cover for 1st and 2nd cameras. It is a functional block diagram for demonstrating the function of the image determination apparatus of FIG.

A vertical bag-filling and packaging machine (hereinafter simply referred to as a packaging machine) for producing a bag with a zipper is known as apparent from the above-mentioned Patent Document 1, and therefore, here, with reference to FIG. The outline of the machine will be briefly described below.
The film packaging material FW is fed from the packaging material roll WR, and the fed film packaging material FW is guided along the packaging delivery path 10 to the former 14 of the vertical bag-making tube 12. The packaging material feeding path 10 is defined by a large number of guide rollers 16.

  When the film wrapping material FW passes through the former 14 of the bag making tube 12, the former 14 forms the film wrapping material FW into a cylindrical shape and below the former 14 through the annular gap between the former 14 and the bag making tube 12. The cylindrical packaging material Wc surrounding the bag-making tube 12 is led out. At this time, both side edges of the film wrapping material FW are overlapped in a predetermined form by the sandwiching guide 18 in the form of a fin seal in the illustrated example. The sandwiching guide 18 is disposed in the lower part of the front surface of the former 14.

  The above-described cylindrical packaging material Wc is drawn further downward from the lower end of the bag-making tube 12 along the bag-making tube 12. Such a cylindrical packaging material Wc is intermittently fed along the bag-making tube 12 by a pair of adsorption-type packaging material feeders 20 (only one is shown in FIG. 1) on both sides of the bag-making tube 12. At this time, both side edges of the cylindrical packaging material Wc pass through the vertical sealer 22 arranged below the sandwiching guide 18, and at this time, the both side edges are welded to each other, so that the vertical sealing LS is attached to the cylindrical packaging material Wc. Is formed.

  On the other hand, the cylindrical packaging material Wc drawn downward from the bag making tube 12 is welded in the width direction by the closing operation of the horizontal sealer 24 when passing through the horizontal sealer 24. The welding here forms a horizontal seal on the cylindrical packaging material Wc. Specifically, the horizontal sealer 24 includes a pair of heater blocks 26, and these heater blocks 26 move toward and away from each other, thereby causing the horizontal sealer 24 to open and close. Further, after the formation of the horizontal seal, a cutting blade (not shown) protrudes from one heater block 26 into the other heater block 26, and the protrusion of the cutting blade here causes the horizontal seal to be connected to the lower top seal TS and the upper side seal TS. Cut to bottom seal BS.

The bottom seal BS provides a bottom for the cylindrical packaging material Wc, and at this point, the product can be put into the cylindrical packaging material Wc through the hopper 28 and the bag making tube 12. The charged product is deposited on the upper side of the bottom seal BS in the cylindrical packaging material Wc, that is, filled in the cylindrical packaging material Wc.
Thereafter, the feeding of the cylindrical packaging material Wc and the closing operation of the horizontal sealer 24 are repeated, so that the cylindrical packaging material Wc forms a horizontal seal, that is, a top seal TS, above the already formed bottom seal BS. Thus, the bag P filled with the product as shown in FIG. 1 is completed.

On the other hand, a belt-like zipper continuous body ZC is fed out from the zipper roll ZR along a zipper feed path 30, which is defined by a number of guide rollers 32 and extends toward the packaging material feed path 10.
As shown in FIG. 2, the zipper continuous body ZC includes a sheet WL having a ridge L and a sheet WG having a groove G, and the sheets WL and WG are overlapped so that the ridge L And the zipper fitting part ZS in which the groove | channel G mutually fits is formed. Further, the zipper fitting part ZS is positioned at one side edge of the sheet WG on the groove G side, and the sheet WL on the convex line L side is integrated with the temporary flap PF protruding from one side edge of the sheet WG. Have. Note that the other side edges of the sheets WL and WG are aligned in the width direction of the zipper continuous body ZC.

  The zipper feed path 30 has a horizontal portion defined between the two guide rollers 32 in the middle thereof, and a crushing device 36 is disposed in the horizontal portion. As shown in FIG. 3, the crushing device 36 includes an ultrasonic horn 38 and an anvil 40 disposed above and below the horizontal portion, and the anvil 40 can move up and down. Therefore, the crushing device 36 can sandwich the zipper continuous body ZC between the anvil 40 and the ultrasonic horn 38. At this time, the zipper fitting portion ZS of the zipper continuous body ZC is melted by ultrasonic waves. However, it can be partially crushed.

  Specifically, although the lower surface 38a of the ultrasonic horn 38 is flat, the upper surface 40a of the anvil 40 is not flat, and the upper surface 40a has one recess 42 and two grooves 44 as shown in FIG. Is formed. The recess 42 has, for example, an elliptical shape, and the ellipse here has a long axis along the feeding direction of the zipper continuous body ZC. On the other hand, the two grooves 44 are deeper than the recess 42 and are positioned at both ends of the recess 42 so as to be separated from each other along the major axis of the recess 42.

  If the recess 42 and the groove 44 are provided in the anvil 40, the crushing device 36 has the zipper fitting portion ZS sandwiched between the lower surface 38 a of the ultrasonic horn 38 and the recess 42 of the anvil 40. A crushing region is formed by crushing while melting a part of the zipper fitting portion, while two squeezing portions in which the zipper fitting portions ZS are partially caulked in the crushing region are formed by the two grooves 44. Such a crushing area and a caulking portion are indicated by reference characters FA and CK in FIG. 5, and the size (area) of the crushing area FA is determined by the size of the recess 42.

The crushing process of the zipper continuous body ZC by the crushing device 36 described above is periodically repeated along with the intermittent feeding of the zipper continuous body ZC, whereby the crushing area FA including the caulking portion CK is continuously zippered. It is formed at regular intervals in the longitudinal direction of the body ZC.
Further, as schematically shown in FIG. 1, the zipper payout path 30 further comprises a cutting section 46 downstream of the crushing device 36, which includes a cutting blade 48. The cutting blade 48 cuts the zipper continuous body ZC at the center of each crushing area FA to form a zipper Z having a predetermined length from the zipper continuous body ZC. A two-dot chain line in FIG. 5 indicates a cutting position of the zipper continuous body ZC by the cutting blade 48.

  Therefore, each zipper Z formed in this way has a crushing part FB consisting of a half of the crushing area FA at each end, and each crushing part FB has one caulking part CK. I have. Here, the area of the crushed portion FB is a suitable index for determining whether the sealing performance at the end of the zipper Z is sufficient. That is, if the area of the crushing portion FB reaches almost half of the area of the recess 42, the above-described crushing device 36 sufficiently melts the zipper fitting portion ZS, and the crushing portion FB is sealed. Shows that it is certain.

  Thereafter, the zipper Z is supplied along the zipper delivery path 30 onto the packaging material delivery path 10 and is temporarily attached to the film packaging material FW on the packaging material delivery path 10 by the zipper temporary attachment device 50. Specifically, the zipper temporary tacking device 50 includes a temporary heater block 52 and a receiving block 54 disposed above and below the film packaging material FW on the packaging material feeding path 10. In the illustrated example, the temporary heater block 52 can be moved up and down, and the temporary flap PF at the zipper Z is sandwiched between the receiving block 54 and the temporary flap PF is attached to one surface of the film packaging material FW. Weld. Here, one surface of the film wrapping material FW is a surface on the side that becomes the inner surface of the cylindrical wrapping material Wc described above.

The zipper Z is temporarily attached to the center of the film wrapping material FW as viewed in the width direction of the film wrapping material FW, while such zipper Z is temporarily attached with a predetermined interval in the longitudinal direction of the film wrapping material FW. Repeatedly, the interval here corresponds to the length of the bag P described above.
The temporary attachment of the zipper Z is performed with reference to a registration mark (not shown) provided in advance on the film packaging material FW. From this, the zipper Z with respect to the longitudinal direction of the film packaging material FW, that is, the bag P Is positioned.

Thereafter, the film wrapping material FW to which the zipper Z is temporarily attached is formed into individual bags P as described above. At this time, the zipper Z is located under the top seal TS in the bag P and the bags P facing each other. It is attached to the inside.
In order to enable such zipper Z attachment, the packaging machine is provided with a zipper attachment device 56 immediately below the horizontal sealer 24 described above, and this zipper attachment device 56 is a pair of heater blocks in the same manner as the horizontal sealer 24. 58. These heater blocks 58 are operated in conjunction with the corresponding heater block 26 on the side sealer 24 side, for example, so that the zipper main attachment device 56 sandwiches the zipper Z from the outside of the bag P between the heater blocks 58, The zipper Z is welded to the mutually facing inner surfaces of the bag P.

Specifically, as shown in FIG. 7, the inner surfaces of the pair of heater blocks 58 include a top clamping surface 60 that sandwiches the sheets WL and WG of the zipper Z while avoiding the zipper fitting portion ZS, and the above-described caulking portion. A pair of side clamping surfaces 62 that sandwich both ends of the zipper Z and both side edges of the bag P while avoiding CK are formed, and the top clamping surface 60 and the side clamping surfaces 62 cooperate to form a gate shape. The side clamping surface 62 protrudes from the top clamping surface 60 in consideration of the reduction in thickness at the crushing portion FB described above, while the thickness of the vertical seal LS of the bag P is considered at the center of the top clamping surface 60. A recess 64 is formed.
Therefore, when the zipper Z is attached by the zipper attaching device 56, the zipper Z is bonded to the inner surface of the bag P through the gate-shaped heat seal area HS as shown in FIG.

Next, a zipper inspection device according to an embodiment of the present invention applied to the above-described vertical bag making filling and packaging machine will be described.
As shown in FIG. 1, the zipper inspection device 66 includes a camera device 68, and this camera device 68 is disposed between the zipper temporary attachment device 50 and the former 14 in the packaging material feeding path 10. In the case of this embodiment, the camera device 68 includes three cameras, that is, first to third cameras 70, 72, 74, and both the first and second cameras 70, 72 are films on the packaging material feeding path 10. It is arranged above the packaging material FW. The first camera 70 photographs one end of the zipper Z, and the second camera 72 photographs the other end of the zipper Z simultaneously.

On the other hand, the third camera 74 is disposed on the side opposite to the first and second cameras 70 and 72 across the packaging material feeding path 10, that is, the film packaging material FW, and the other surface of the film packaging material FW, that is, Then, at least one reference pattern previously provided on the outer surface of the bag P is photographed at the same timing as the first and second cameras 70 and 72.
Here, the reference pattern is a reference for specifying the zipper position with respect to the width direction of the film wrapping material FW. For example, two reference patterns are assigned to the temporarily attached zipper Z as shown in FIG. The first and second reference patterns are applied to the film wrapping material FW so as to be positioned in the vicinity of one end and the other end of the temporarily attached zipper Z, respectively.

Specifically, the first and second reference patterns may be a part of the pattern drawn on the outer surface of the bag P or the aforementioned registration mark, or those provided separately from the pattern and the registration mark. It may be. Further, the first and second reference patterns need not be the same.
The third camera 74 is indispensable when the film wrapping material FW is an opaque wrapping material having an aluminum coating, for example. However, if the film wrapping material FW is transparent, the third camera 74 is not necessary. In this case, the first and second cameras 70 and 72 shoot the corresponding end of the zipper Z and the reference pattern together.
However, if the first to third cameras 70, 72, and 74 are provided in advance as in the present embodiment, the first and second ends of the zipper Z are connected to each other regardless of whether the film packaging material FW is transparent or opaque. Since it can be photographed together with the reference pattern, a zipper inspection device with excellent versatility is provided.

In order to clearly photograph the subject to be photographed by the first and second cameras 70 and 72, as shown in FIG. 10, the camera device 68 is located between the first and second cameras 70 and 72 and the film wrapping material FW. The first and second covers 76 and 78 are preferably isolated from the surroundings, and the first and second covers 76 and 78 are formed as a reflecting mirror 80 having a bowl shape at the lower end thereof. A ring light 82 as a light source is built in 80.
Further, in the present embodiment, the first camera 70 and the first cover 76 are attached to the support plate 84 as one unit, and similarly, the second camera 72 and the second cover 78 are also attached to the support plate 84 as one unit. It is attached. The support plate 84 extends across the film packaging material FW on the packaging material feeding path 10, and the mounting position of each unit with respect to the support plate 84 can be adjusted in the width direction of the film packaging material FW.

  If the camera device 68 includes the first and second covers 76 and 78 described above, the first and second cameras 70 and 72 are not affected by the disturbance, and only the corresponding end portion or the end portion of the zipper Z is not affected. And an object composed of both the reference pattern and the reference pattern can be clearly photographed. In addition, since the mounting position of each unit described above can be adjusted in the width direction of the film packaging material FW, when the intermittent feeding of the film packaging material FW stops, the camera corresponding to the upper side of the target can be positioned accurately and easily. It becomes.

The captured images obtained by the first to third cameras 70, 72, and 74 are transmitted to the image determining device 86 as is apparent from FIG. 1, and the image determining device 86 determines the quality of the zipper Z based on the captured images. To do.
Specifically, the image determination device 86 includes functional blocks as shown in FIG. 11, and the function of the image determination device 86 will be described below with reference to FIG.
The image determination apparatus 86 includes an inspection image generation unit 88. The inspection image generation unit 88 receives captured images captured by the first to third cameras 70, 72, and 74, and based on these captured images, for example, FIG. Inspection images as shown in (a), (b), and (c) are generated. These inspection images include at least both ends of the zipper Z and the first and second reference patterns.

An inspection image is sent from the inspection image generation unit 88 to the end position specifying unit 90, and the end position specifying unit 90 determines end positions EP ₁ and EP ₂ (inspection items) of one end and the other end of the zipper Z based on the inspection image. Identify each one. Specifically, as is clear from (a) in FIG. 9, the end position EP ₁ showing the end of the zipper Z is a first reference end position corresponding to an end side of a known first reference pattern example, this is specified based on the distance D ₁ of the between one end of the first reference end position and the zipper Z. Likewise, the end position EP ₂ showing the other end of the zipper Z between the corresponding end of the side as the second reference edge position is known, the other end of the second reference end position and the zipper Z of the second reference pattern based on the distance D ₂ is identified.

The end positions EP ₁ and EP ₂ specified in this way are sent to the determination unit 92, where it is determined whether or not the end positions EP ₁ and EP ₂ are within an allowable range. The determination result is output from the determination unit 92. For example, in (c) of FIG. 9, if the solid zipper Z is in the normal zipper position, the distances D ₁ and D ₂ are outside the allowable range for the two-dot chain zipper Z. In this case, The end positions EP ₁ and EP ₂ of the zipper Z are determined to be defective, and the determination result of the defect is output from the determination unit 92.

Here, since the first and second reference patterns are used for specifying the end positions EP ₁ and EP ₂ , the film packaging material FW is transparent, and photographing of both side edges of the film packaging material FW is substantially performed. Even if this is not possible, the end positions EP ₁ and EP ₂ can be specified. Even if the meandering occurs in the film wrapping material FW, the end positions EP ₁ and EP ₂ due to the meandering can be specified. There is no adverse effect.
Further, in the present embodiment, since both ends of the zipper Z are photographed by the first and second cameras 70 and 72, respectively, the first and second cameras 70 and 72 have a long zipper Z, Both ends of the zipper Z can be photographed.

On the other hand, the distances D ₁ and D ₂ are sent to the zipper length calculation unit 94, and the zipper length calculation unit 94 determines the zipper length Lz (inspection item) based on the distances D ₁ and D ₂ . Specifically, since the first and second reference end positions described above are known, the separation distances of the first and second reference end positions are also known. Therefore, the distances D ₁ and D ₂ are added to the separation distance. The value obtained is the zipper length Lz.
The zipper length Lz thus determined is sent to the determination unit 96, where it is determined whether or not the zipper length Lz is within an allowable range with respect to the regular zipper length. The determination result is output from the determination unit 96.

The inspection image is also sent from the inspection image generation unit 88 to the inclination angle calculation unit 98, and the inclination angle calculation unit 98 uses the inclination angle α of the zipper Z with respect to the width direction of the film packaging material FW (inspection item) based on the inspection image. ) Is calculated. For example, as apparent from FIG. 9B, the first distance between the first reference end position along the longitudinal direction of the film wrapping material FW and the zipper Z and the second reference end position. A second distance between the zipper Z and the zipper Z is obtained, and an inclination angle α of the zipper Z is calculated based on the first and second distances.
Thereafter, the inclination angle α is sent to the determination unit 100. In the determination unit 100, whether or not the inclination angle α of the zipper Z is within the allowable range, that is, the zipper Z of the film packaging material FW with respect to the width direction. It is determined whether or not the parallelism is within an allowable range, and the determination result here is output from the determination unit 100.

Further, the inspection image is sent from the inspection image generation unit 88 to the area calculation unit 102, and the area calculation unit 102 determines the area A (inspection) of the crushing part FB that the zipper Z has at both ends based on the inspection image. Item) is calculated.
Thereafter, the area A is sent to the determination unit 104, which determines whether or not the area A is within the allowable range. For example, in this determination, half of the area of the recess 42 in the anvil 40 described above can be used as the reference area, and whether or not the area A is within the allowable range with respect to this reference area, that is, crushing It is determined whether the sealing performance at the part FB is sufficiently secured, and the determination result is output from the determination unit 104.

  If any of the determination results from the above-described determination units 92, 96, 100, and 104 is negative, the zipper Z is inferior in any of the temporary attachment position, temporary attachment posture, and sealing property at the crushing portion FB. Indicates that In this case, the packaging machine can avoid filling the defective bag P with the product, and the bag P filled with the product is not undesirably manufactured.

The present invention is not limited to the above-described zipper inspection apparatus of the embodiment, and various modifications are possible.
For example, if both ends of the zipper Z can be photographed by one common camera, the common camera can be used in place of the first and second cameras 70 and 72, and the film wrapping material FW is transparent. For example, the common camera can also be used as the third camera.
In one embodiment, the first and second reference patterns are assigned to both ends of the zipper Z. However, the first and second reference patterns may be one common reference pattern.
Further, the image processing procedure in the image determination device 86 of the embodiment is merely an example, and the above-described inspection items can be specified by image processing based on various algorithms.

DESCRIPTION OF SYMBOLS 10 Packaging material delivery path | route 14 Former 30 Zipper delivery path | route 36 Crushing apparatus 50 Zipper temporary attachment apparatus 56 Zipper permanent attachment apparatus 66 Zipper inspection apparatus 68 Camera apparatus 70 1st camera 72 2nd camera 74 3rd camera 76 1st cover 78 1st 2 Cover 82 Ring light (light source)
86 Image determination device
Z zipper
FW film packaging material
ZW zipper web

Claims (5)

A former for forming the film wrapping material into a cylindrical shape, and a zipper temporary attaching device for temporarily attaching a belt-like zipper to one surface of the film wrapping material in the process of transferring the film wrapping material toward the former Comprising
In a vertical bag making filling and packaging machine for completing a bag with a zipper filled with a product from a film packaging material temporarily attached with the zipper,
The packaging machine further includes a zipper inspection device on the premise of using a film packaging material having at least one reference pattern as a reference for specifying a zipper position with respect to the width direction and the feeding direction of the film packaging material. Equipped,
The zipper inspection device is
A camera device that is disposed between the zipper tacking device and the former, and photographs both ends of the tacked zipper together with the reference pattern;
An image determination device that determines the quality of the zipper based on an inspection image obtained from the camera device;
The image determination apparatus determines whether or not the inspection items of the end positions of the both ends of the zipper with respect to the reference pattern, the zipper length, and the inclination angle of the zipper are within an allowable range,
Vertical bag making filling and packaging machine equipped with zipper inspection equipment.   The camera device includes first and second cameras that are respectively arranged on the one surface side of the film wrapping material and respectively photograph both end portions of the zipper, and at least one of the first and second cameras is the A vertical bag-filling and packaging machine provided with the zipper inspection device according to claim 1, which simultaneously photographs a reference pattern. The camera device is disposed on the one surface side of the film wrapping material, and is disposed on the other surface side of the film wrapping material, and first and second cameras that respectively photograph both end portions of the zipper. A third camera for photographing the reference pattern given to the other surface at the same photographing timing as the first and second cameras,
2. The vertical bag making and filling machine including the zipper inspection device according to claim 1, wherein the image determination device generates the inspection image from individual captured images respectively obtained by the first to third cameras. Prior to temporary attachment of the zipper by the zipper temporary attachment device, further comprising a crushing device that crushes both end portions of the zipper to form crushing portions,
The said image determination apparatus is provided with the zipper inspection apparatus in any one of Claims 1-3 which uses the area of the said crushing part as a further inspection item, and determines whether this inspection item is in tolerance level. Vertical bag making filling and packaging machine.   The camera device further includes first and second covers that isolate the first and second cameras and the film wrapping material to be photographed from the surroundings, respectively, and the first and second covers contain a light source. A vertical bag making filling and packaging machine comprising the zipper inspection device according to claim 2.

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