JP6588767B2 - Vertical bag making filling and packaging machine with zipper fitting quality detector - Google Patents

Description

  The present invention relates to a vertical bag making filling and packaging machine for manufacturing a bag with a zipper, and in particular, a zipper fitting quality detecting device for detecting whether or not a male and female fitting portion in a zipper is maintained in a normal fitting state. The present invention relates to a vertical bag making filling and packaging machine.

  This type of vertical bag making and filling and packaging machine receives, for example, a belt-like film (wrapping material) temporarily attached with a zipper as disclosed in Patent Document 1 below, and a bag with a zipper from the film. The product is filled into individual bags in the manufacturing process of the bag.

JP 2006-282189 A

  Immediately after the above-described zippered bag is manufactured, the zipper must be maintained in a fitted state in which the male and female fitting portions are normally fitted. However, in the manufacturing process of a bag with a zipper, the possibility that the fitting part of the zipper is undesirably partially detached and the zipper is partially opened cannot be excluded.

Assuming the possibility here, when the film passes through the bag making guide (former) and is formed into a cylindrical shape, the fitting part of the temporary zipper is crushed at both ends thereof Nevertheless, since the zipper is formed in an arc shape along the cylindrical film, the inner and outer arc length difference in such an arc-shaped zipper and the fitting strength at the fitting portion excluding both ends Although it is unlikely that a situation in which the fitting part partially disengages will occur due to the relationship with the above, it is considered that it is not zero.
Conventionally, the above-described detachment of the fitting portion in the zipper is unexpected, and therefore, development of a device for detecting the quality of the fitting portion is desired.

  The present invention has been made on the basis of the above-mentioned circumstances, and the object of the present invention is to make a vertical product provided with a device for detecting the quality of a fitting portion in a temporary zipper in the manufacturing process of a bag with a zipper. It is to provide a bag filling and packaging machine.

The above-described object is achieved by the vertical bag making and filling machine with a zipper fitting quality detecting device of the present invention, and the vertical bag making and filling and packaging machine temporarily holds the zipper at intervals in the longitudinal direction of the packaging material. When the zipper passes through the former, it is formed into a cylindrical packaging material in which both side edges of the packaging material are overlapped in a predetermined form, and the cylindrical packaging material is placed under the former. A vertical seal is formed on both side edges of the cylindrical packaging material in the process of being drawn out and lowered intermittently along the extending vertical and cylindrical bag-making tube, and then the cylindrical packaging material is closed. When the cylindrical packaging material passes through a composite sealer device disposed below the bag-making tube, a horizontal seal is formed on the cylindrical packaging material with a space in the longitudinal direction of the cylindrical packaging material. The zipper is permanently attached to the cylindrical packaging material.

The zipper fitting quality detecting device applied to such a vertical bag making filling and packaging machine detects whether the male and female fitting portions of the zipper in the temporarily fixed state are maintained in a normal fitting state. Because
A detector disposed between the former and the composite sealer device as seen in the longitudinal direction of the bag-making tube;
When the temporary zipper reaches the detector, the detector is pushed from the rest position toward the bag making tube, and the temporary zipper is intermittently interposed between the detector and the bag making tube. Extrusion means for sandwiching at a predetermined clamping pressure together with the cylindrical packaging material drawn downward downward ,
Measuring means for measuring the extrusion amount of the detector;
Wherein based on the measurement result of the measuring means, seen including a determination means for determining whether the fitting portion of the temporary fixing the zipper is out,
When the cylindrical packaging material is intermittently pulled down along the bag-making tube, the temporary zipper is temporarily positioned at a height level where the detector is disposed,
The determination means pushes the detector toward the bag-making tube via the push-out means every time the temporary zipper is positioned at the height level of the detector, and the fitting portion is released. It is determined whether it is (Claim 1).

  According to the above zipper fitting quality detection means, the manufacturing process of the zippered bag in the vertical bag making filling and packaging machine, that is, the zipper temporarily fixed to the cylindrical packaging material passes through the former and then reaches the detector. At that time, the pushing means pushes the detector from the rest position toward the bag making tube. As a result, the detector is pressed against the bag-making tube with the temporarily-fastened zipper through the cylindrical packaging material, and the temporary-fastening zipper is sandwiched between the bag-making tube and the detector together with the cylindrical packaging material.

On the other hand, the push-out amount of the above-described detector is measured by the measuring means, and based on the measurement result here, the determining means determines whether or not the fitting part of the male and female in the temporary fastening zipper is disengaged.
For example, the determination means has, as a determination criterion, the amount of push-out of the detector when the fitting portion of the temporary fastening zipper is in a normal fitting state. If the fitting part of the zipper to be detected is disengaged, one of the male and female fitting parts is lifted from the other. Inevitably less than. Therefore, the larger the difference between the extrusion rate and the criterion of the detector exceeds the allowable range, the determination means may determine the off occurs in the fitting portion of the detection target zipper (claim 2 )
In addition, the criterion for the push-out amount of the detector is not limited to this, for example, a value obtained by subtracting the standard thickness of the zipper and the packaging material from the push-out amount when the detector contacts the outer peripheral surface of the bag-making tube. (Claim 3).

  As is clear from the above description, in the case of the zipper fitting quality detecting device of the present invention, since the detector is arranged between the former and the composite sealer device, the packaging material temporarily fixed with the zipper is the former. Even if the fitting portion of the temporary fastening zipper is disengaged when passing, the disengagement here can be detected by the measuring means before the lateral seal is formed on the packaging material.

In addition, since the measuring means measures the push-out amount of the detector while the temporary zipper is sandwiched between the detector and the bag making tube, even if the fitting portion of the zipper tends to come off. In addition, this tendency to deviate is also eliminated by the detector.
For example, extrusion means Ri Do an air cylinder, an air cylinder is adjustable nip pressure (claim 4). According to such an air cylinder, when the temporarily fixed zipper by the detector is sandwiched between the detector and the bag making tube via the cylindrical packaging material, it is easy to appropriately adjust the holding pressure (air pressure) of the zipper. .

Furthermore, it is desirable that the detector has a contact surface that can come into contact with the temporarily fixed zipper via the cylindrical packaging material, and the contact surface is a flat surface extending in parallel with the longitudinal direction of the bag-making tube. Item 5 ). When the temporarily fixed zipper is sandwiched between the detector and the bag-making tube via the cylindrical packaging material, the contact surface of the above-described detector is interposed between the temporary zipper and the cylindrical packaging material. Line contact. Therefore, if the fitting part of the temporary fastening zipper is disengaged, this disengagement is effectively reflected in the push-out amount of the detector.

On the other hand, it is desirable that the detector is arranged so as to sandwich the central portion of the temporarily-fastened zipper between the detector and the bag-making tube through a cylindrical wrapping material when viewed in the circumferential direction of the bag-making tube. Item 6 ). Normally, the male and female mating parts of the temporary fastening zipper are crushed at both ends and are in an integrated state, so when the temporary fastening zipper passes through the former, the disengagement of the fitting part is the temporary fastening zipper It is easy to generate | occur | produce in the said center part. Therefore, if the detector is arranged at a position corresponding to the central portion of the temporary fixing zipper, the detector can effectively detect the disengagement of the fitting portion.

Further, the zipper fitting quality detecting device is a radial direction adjusting means for adjusting the rest position of the detector with respect to the radial direction of the bag making tube (Claim 6 ), or a longitudinal direction adjusting means for adjusting the longitudinal direction of the bag making tube ( The present invention may further include claim 7 ). Such radial direction adjusting means or longitudinal direction adjusting means makes it possible to adjust the rest position of the detector in accordance with the width and length of the bag to be manufactured.

In the vertical bag making and filling and packaging machine with the zipper fitting quality detecting device according to the first to eighth aspects of the present invention, the detector of the zipper-fitting quality detecting device is disposed between the former and the composite sealer device. When the packaging material with the zipper temporarily fixed passes through the former, even if the male and female mating portions of the temporary fixing zipper are detached, this separation is in the stage before the lateral seal is formed on the packaging material. It can be detected by the zipper fitting quality detection device, and the production of defective products due to the fitting disengagement can be avoided.
Further, other advantages and the like related to the zipper-fitting quality detection device of the present invention will be apparent from the accompanying drawings and the description of the embodiments described later with reference to the accompanying drawings.

It is the schematic of the vertical bag making filling packaging machine provided with the zipper fitting quality detector of one embodiment. It is an enlarged side view which shows the detail of the zipper fitting quality detection apparatus of FIG. It is a figure which shows the detection state of the fitting part in the case where the fitting state of the fitting part in the temporary fastener zipper is normal. It is a figure which shows the detection state of the fitting part in the case where the fitting state of the fitting part in the temporary fastener zipper is unsatisfactory.

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 packaging material FW made of film is fed from the packaging material roll WR, and the fed packaging material FW extends to the vertical and cylindrical bag-making tube 12 along the packaging delivery path 10, that is, to the former 14 surrounding the bag-making tube 12. Led. The packaging material feeding path 10 is defined by a large number of guide rollers 16.

  When the packaging material FW passes through the former 14, the former 14 forms the packaging material FW into a cylindrical shape. Such a cylindrical packaging material FW extends below the former 14 through an annular gap between the former 14 and the bag making tube 12 and becomes a cylindrical packaging material Wc surrounding the bag making tube 12 (see FIG. 2). . At this time, both side edges of the packaging 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.

Further, the cylindrical packaging material Wc extends along the bag making tube 12 and is further drawn downward from the lower end of 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 are welded to each other when passing through the vertical sealer 22 below the sandwiching guide 18, and a vertical seal LS is formed on the cylindrical packaging material Wc. At this point, the cylindrical packaging material Wc is a complete cylinder.
Here, the packaging material feeder 20 is actuated based on the operation timing (or machine timing) of the packaging machine representing the feeding and stopping of the cylindrical packaging material Wc, and the operation and the stop are repeated intermittently.

  On the other hand, the cylindrical packaging material Wc fed downward from the bag making tube 12 passes through the horizontal sealer 24 that constitutes a part of the composite sealer device 23. At this time, the horizontal sealer 24 is closed in the width direction. Welded. 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 tubular packaging material Wc. At this time, that is, at the time when the horizontal seal is formed, the product is put into the bag making tube 12 through the hopper 28 connected to the upper end of the bag making tube 12, and as a result, the product into the cylindrical packaging material Wc. Filled. The product thus filled is deposited on the upper side of the bottom seal BS in the cylindrical packaging material Wc.
As shown in FIG. 1, for example, a product loading device 29 is disposed above the hopper 28, and the product loading device 29 can intermittently load a certain amount of product into the hopper 28, for example. By repeating the feeding of the cylindrical packaging material Wc, the opening and closing operation of the horizontal sealer 24, and the introduction of the product, the bag P filled with the product as shown in FIG. 1 is manufactured.

On the other hand, the packaging machine includes a zipper roll ZR in addition to the packaging material roll WR, and a belt-like zipper continuous body ZC is fed along the zipper feed path 30 from the zipper roll ZR. The zipper feed path 30 is defined by a large number of guide rollers 32 and extends toward the packaging material feed path 10.
The zipper continuous body ZC includes male and female fitting portions that are fitted to each other, and these fitting portions are integrally formed with the sheets S1 and S2 (see FIG. 2). As is clear from FIG. 2, for example, the sheet S1 is wider than the sheet S2 by the amount of the temporary flap F. Note that the sheet S1 has a male fitting portion, and the sheet S2 has a female fitting portion.

  The zipper feed path 30 has a horizontal portion in the middle thereof. The horizontal portion is defined between the two guide rollers 32a, and a crushing device is disposed on the horizontal portion. The crushing device includes, for example, an ultrasonic horn 38 that sandwiches a horizontal portion up and down and an anvil 40 that can be raised and lowered. Therefore, when the fitting part of the zipper continuous body ZC is sandwiched between the anvil 40 and the ultrasonic horn 38, the fitting part is partially crushed while being melted by ultrasonic waves, A squashed area is formed. Such a crushing region is formed at a certain interval in the longitudinal direction of the zipper continuous body ZC.

Further, as schematically shown in FIG. 1, the zipper feed path 30 is further provided with a cutting device downstream of the crushing device, which includes a cutting blade 48. The cutting blade 48 cuts the zipper continuous body ZC at the center of each crushing region, and forms a zipper Z having a predetermined length from the zipper continuous body ZC.
Therefore, each zipper Z has the crushing part which consists of a half of a crushing area | region in the both ends, respectively.

  Thereafter, the zipper Z is supplied onto the packaging material feeding path 10 along the zipper feeding path 30, and is temporarily attached to the packaging material FW on the packaging material feeding path 10 by the zipper temporary attachment device 50. Specifically, the zipper temporary attachment device 50 includes a temporary heater block that can be moved up and down and a receiving block. The temporary attachment flap F at the zipper Z is sandwiched between these via the packaging material FW, The temporary flap F is welded to one side of the packaging material FW. Here, the one surface of the packaging material FW is a surface on the side that becomes the inner surface of the cylindrical packaging material Wc described above (see FIG. 2).

Here, the zipper Z is temporarily attached to the center of the packaging material FW when viewed in the width direction of the packaging material FW, while such temporary attachment of the zipper Z has a predetermined interval in the longitudinal direction of the packaging material FW. It repeats, and the space | interval here corresponds with the length of the bag P mentioned above.
Thereafter, the packaging material FW with the zipper Z temporarily attached thereto is formed into individual bags P as described above. At this time, the temporary fastening zipper Z is mutually below the top seal TS in the bag P. The book is attached to the inner surface of the facing bag P.

  In order to enable such a zipper Z attachment, the above-described composite sealer device 23 includes a zipper attachment device 56 immediately below the lateral sealer 24. The zipper attachment device 56 is similar to the horizontal sealer 24. A pair of heater blocks 58 is provided. These heater blocks 58 operate in conjunction with the corresponding heater block 26 on the side sealer 24 side, for example. Therefore, the zipper main attachment device 56 sandwiches the zipper Z from the outside of the bag P between the heater blocks 58 and welds the sheets S1 and S2 of the zipper Z to the inner surfaces of the bag P facing each other. As a result, the packaging machine described above produces a bag P with a zipper Z.

The packaging machine described above further includes a zipper fitting quality detecting device, and this zipper fitting quality detecting device will be described in detail below.
As shown in FIG. 1, the zipper fitting quality detecting device includes a detector unit 60, and the detector unit 60 is disposed in the vicinity of the bag making tube 12 between the former 14 and the composite sealer device 23. Has been.

  As shown in detail in FIG. 2, the detector unit 60 includes a detector 62, and FIG. 2 shows that the detector 62 is pushed toward the bag making tube 12 from a rest position away from the bag making tube 12. In this state, the temporarily fixed zipper Z to be inspected is sandwiched between the detector 62 and the bag making tube 12 together with the cylindrical packaging material Wc. That is, when the cylindrical packaging material Wc is intermittently pulled out downward along the bag-making tube 12, the temporary fastening zipper Z is temporarily positioned at the height level where the detector 62 is disposed. That is, if the distance between the detector 62 and the zipper attachment device 56 is L, the distance L is set to an integral multiple of the length of the bag P.

  On the other hand, when viewed in the diameter direction of the bag making tube 12, the detector 62 is disposed on the opposite side of the vertical seal LS of the cylindrical packaging material Wc as is apparent from FIG. Therefore, when the zipper Z for temporary fixing is seen in the longitudinal direction (circumferential direction of the bag making tube 12), the cylindrical packaging material Wc is interposed between the detector 62 and the bag making tube 12 at the center portion thereof. It is caught.

  Further, in order to ensure that the zipper Z is sandwiched, the detector 62 has a contact surface 64 that comes into contact with the temporary zipper Z via the cylindrical packaging material Wc. It is formed as a flat surface extending parallel to the longitudinal direction (axial direction). Therefore, when the temporary fastening zipper Z is sandwiched, the contact surface 64 comes into line contact with the temporary fastening zipper Z via the cylindrical packaging material FW.

  In order to allow the above-described detector 62 to be pushed out, the detector 62 is attached to an air cylinder 66 as an extruding means, that is, the tip of its piston rod 68. Such an air cylinder 66 can reciprocate the detector 62 in the horizontal direction indicated by arrow A in FIG.

  The air cylinder 66 is supported by a slide block 70 having an angle shape. On the other hand, the measuring means of the detector unit 60, that is, a contact displacement sensor 74 is also supported by the slide block 70 via a stay 72. ing. The displacement sensor 74 has a contact that is always in contact with the back surface of the detector 62 opposite to the contact surface 64 described above, and can detect the push-out amount of the detector 62 from the rest position.

  The slide block 70 has, for example, a pair of upper and lower slots 78, and these slots 78 extend parallel to each other in the horizontal direction. The adjusting screws 80 pass through the slots 78, and these adjusting screws 80 are screwed into the elevating block 82. Thus, although the slide block 70 is fixed to the elevating block 82 via the adjusting screw 80, the fixing position is the horizontal direction indicated by the arrow B in FIG. Twelve radial directions can be displaced. Therefore, the above-described rest position of the detector 62 can be adjusted according to the width of the bag P to be manufactured, that is, the diameter D of the bag making tube 12 through the slot 78 and the adjusting screw 80 as radial adjusting means. It is.

  On the other hand, the feed screw 84 and the guide rod 86 penetrate the elevating block 82 in the vertical direction, and the feed screw 84 is screwed into a screw hole (not shown) of the elevating block 82. Therefore, if the feed screw 84 is rotated in the forward or reverse direction indicated by the arrow in FIG. 2, the lifting block 82 is adjusted in the lifting direction indicated by the arrow C in FIG. 2, that is, the longitudinal direction of the bag making tube 12. This allows the feed screw 84 and the guide rod 86 to adjust the height level of the detector 62 (rest position) in accordance with the length of the bag P to be manufactured, that is, the distance L described above. Configure the means.

Thus, the zipper fitting quality detecting device of the present embodiment is excellent in versatility because the rest position and height level of the detector 62 can be adjusted according to the size (width and length) of the bag P to be manufactured. It will be.
The displacement valve 74 and the electromagnetic valve 66v for operating the air cylinder 66 are electrically connected to a control device 88. The control device 88 is also electrically connected to the product input device 29 as shown in FIG. It is connected.

  The control device 88 controls the operation of the air cylinder 66 on the basis of the operation timing of the packaging machine representing the determination timing, and on the other hand, on the basis of the pushing amount of the detector 6 measured by the displacement sensor 74, It is determined as a determination means whether or not the joint portion is maintained in a normal fitting state, and the operation of the product loading device 29 is also controlled based on the determination result.

  Specifically, prior to the manufacture of the bag P with the zipper Z, the displacement sensor 74 is initialized. In this initial setting, for example, a cylindrical packaging material Wc having a temporary fastening zipper Z is formed along the bag making tube 12, and at this time, the temporary fastening zipper Z is at the same height level as the detector 62. Positioned.

  In this state, the air cylinder 66 is operated, and the detector 62 is pushed out from the rest position toward the bag making tube 12. Therefore, as shown in FIG. 3, the temporarily fixed zipper Z is sandwiched between the detector 62 and the bag making tube 12 with a predetermined clamping pressure (air pressure) through the cylindrical packaging material Wc. On the other hand, at this time, the displacement sensor 74 measures the pushing amount of the detector 62 and transmits the measurement result to the control device 88. In FIG. 3, the displacement sensor 74 is omitted.

  Here, if the fitting state of the fitting portion in the temporary fastening zipper Z is normal, the extrusion amount measured by the displacement sensor 74 can be an index indicating the thickness To of the zipper Z in which the fitting state is normal. Therefore, it can be used as a criterion for determining the quality of the fitting portion. In this case, the control device 88 stores the push-out amount transmitted from the displacement sensor 74 in the memory as a determination criterion, and completes the initial setting.

After this, the manufacture of the bag P with the zipper Z is started in the packaging machine, and the zipper fitting quality detection device detects the quality of the zipper Z in the fitted state every time the temporarily fixed zipper Z passes the detector 62. Is detected.
Specifically, the control device 88 is at every operation timing of the packaging machine in which the one-time intermittent operation of the packaging material feeder 20 is completed, that is, every time the temporary zipper Z is positioned at the height level of the detector 62. Then, the detector 62 is pushed out toward the bag making tube 12 through the air cylinder 66.

  Therefore, the temporary zipper Z is sandwiched with the cylindrical packaging material Wc at a predetermined clamping pressure (air pressure), and at this time, the amount of extrusion measured by the displacement sensor 74 is received from the displacement sensor 74 by the control device 88. Here, since the holding pressure of the zipper Z, that is, the air pressure can be easily adjusted, the amount of extrusion by the displacement sensor 74 can be stably measured.

  Then, the control device 88 determines whether or not the received extrusion amount is within an allowable range including the above-described determination criteria. Here, if the amount of extrusion is smaller than the allowable range from the criterion, it is disengaged from the fitting part in the temporary zipper Z as shown in FIG. 4, that is, a gap G is generated between the male and female fitting parts. , Due to the gap G, the thickness Tm of the zipper Z is abnormally larger than the To. In this case, the control device 88 transmits a fitting failure signal to the product insertion device 29. The product loading device 29 stops the filling of the product corresponding to the defective temporary fixing zipper Z based on the fitting failure signal. As a result, the product is not filled in the bag P having the defective zipper Z, and waste of the product is avoided.

  As described above, since both ends of the temporary attachment zipper are formed as a crushing portion, the disengagement of the fitting portion in the zipper Z is likely to occur in the center portion in the longitudinal direction. 12, the center portion of the zipper Z is sandwiched between them, so that the disengagement of the fitting portion can be reliably detected.

In addition, the zipper Z sandwiched by the detector 62 may work in a direction to eliminate the disengagement tendency even if the fitting portion of the temporarily fastened zipper Z tends to come off. The rate can be kept to a value close to zero.
Note that if the measured amount of extrusion is large outside the allowable range from the criterion, the controller 88 determines that the temporary fastening zipper Z is missing, and in this case, the filling of the product is stopped.

The present invention is not limited to the above-described zipper fitting quality detecting device according to one embodiment, and various modifications are possible.
For example, the measuring means for measuring the push-out amount of the detector is not limited to the contact displacement sensor 74 described above, and a non-contact displacement sensor can be used.

  Also, a plurality of detectors 62 may be provided. In this case, these detectors 62 are arranged at intervals in the circumferential direction of the bag-making tube, and the push-out amount of each detector 62 is measured. Measured by. Thus, if the some detector 62 is provided, it can grasp | ascertain more correctly whether the fitting state of the fitting part in the temporary fastener zipper is maintained normally.

  Furthermore, the determination criteria for the push-out amount of the detector 62 are not limited to those illustrated, and for example, the standard thickness of the zipper and the packaging material is subtracted from the push-out amount when the detector 62 contacts the outer peripheral surface of the bag making tube 12. The determined value may be set as a criterion.

12 Bag making tube 14 Former 22 Vertical sealer (vertical seal)
23 composite sealer device 62 detector 64 contact surface 66 air cylinder (extrusion means)
70 Slide block 74 Contact displacement sensor (measuring means)
78 slots (radial adjustment means)
80 Adjustment screw (Diameter adjustment means)
82 Lifting block 84 Feed screw (longitudinal direction adjusting means)
86 Guide rod (longitudinal adjustment means)
88 Control device (determination means)
Wc Tubular packaging
Z zipper

Claims (8)

Received the supply of the packaging material with the zipper temporarily fixed at intervals in the longitudinal direction of the packaging material,
When the zipper passes through the former, it is formed into a cylindrical packaging material in which both side edges of the packaging material are overlapped in a predetermined form,
In the process in which the cylindrical packaging material is intermittently drawn and lowered along a vertical and cylindrical bag-making tube extending below the former, vertical seals are formed on both side edges of the cylindrical packaging material, and Close the tubular wrapping, and then
At the same time as forming a horizontal seal on the cylindrical packaging material with a space in the longitudinal direction of the cylindrical packaging material when the cylindrical packaging material passes through a composite sealer device disposed below the bag-making tube. Attaching the zipper to the tubular packaging material;
In a vertical bag making and filling machine,
A zipper fitting quality detecting device for detecting whether or not the male and female fitting portions of the temporary zipper are maintained in a normal fitting state;
The zipper fitting quality detecting device is
A detector disposed between the former and the composite sealer device as seen in the longitudinal direction of the bag-making tube;
When the temporary zipper reaches the detector, the detector is pushed from the rest position toward the bag making tube, and the temporary zipper is intermittently interposed between the detector and the bag making tube. Extrusion means for sandwiching at a predetermined clamping pressure together with the cylindrical packaging material drawn downward downward ,
Measuring means for measuring the extrusion amount of the detector;
Wherein based on the measurement result of the measuring means, seen including a determination means for determining whether the fitting portion of the temporary fixing the zipper is out,
When the cylindrical packaging material is intermittently pulled down along the bag-making tube, the temporary zipper is temporarily positioned at a height level where the detector is disposed,
The determination means pushes the detector toward the bag-making tube via the push-out means every time the temporary zipper is positioned at the height level of the detector, and the fitting portion is released. A vertical bag making filling and packaging machine with a zipper fitting quality detecting device characterized by determining whether or not the The determination means uses the thickness of the fitting portion in a normal fitting state as a determination criterion for determining the quality of the fitting portion, and the extrusion amount measured by the measuring means is within an allowable range from the determination criterion. If the gap is small, a gap is generated in the fitting portion, and due to the gap, the thickness of the temporary zipper zipper is larger than the thickness of the fitting portion in a normal fitting state, and the fitting portion is The vertical bag making filling and packaging machine with a zipper fitting quality detecting device according to claim 1, wherein it is determined that the bag is detached. The determination criterion is set to a value obtained by subtracting the standard thickness of the zipper and the packaging material from the amount of extrusion when the detector contacts the outer peripheral surface of the bag making tube. Item 3. A vertical bag making filling and packaging machine with a zipper fitting quality detecting device according to Item 2. The extrusion means Ri Do from the air cylinder, the air cylinder zipper fitting quality detector equipped vertical bag filling and packaging according to any one of claims 1-3, characterized in that is adjustable the clamping Ji圧 Machine. The detector has a contact surface that can contact a temporary zipper through the cylindrical packaging material, and the contact surface is a flat surface extending in parallel with the longitudinal direction of the bag-making tube. A vertical bag making filling and packaging machine with a zipper fitting quality detecting device according to any one of claims 1 to 4 . The detector is arranged to sandwich the center portion of the zipper between the detector and the bag-making tube together with the cylindrical packaging material when viewed in the circumferential direction of the bag-making tube. The vertical bag making filling packaging machine with a zipper fitting quality detection device in any one of Claims 1-5 . The said zipper fitting quality detection apparatus further includes the radial direction adjustment means which adjusts the said rest position of the said detector regarding the radial direction of the said bag making tube, The one in any one of Claims 1-6 characterized by the above-mentioned. Vertical bag making filling and packaging machine with zipper fitting quality detector. The zipper fitting quality detection device, according to the rest position of the detectors to any one of claims 1 to 7, further comprising a longitudinal adjustment means for adjusting relative to the longitudinal direction of the bag tube Vertical bag making filling and packaging machine with zipper fitting quality detector.

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