JP2019026373A - Bag-making filling packaging machine - Google Patents

Abstract

To provide a bag-making filling packaging machine capable of ejecting, if a belt-like film is drawn out during a stop of operation of the bag-making filling packaging machine, a drawn-out region thereof as a defective.SOLUTION: A bag-making filling packaging machine 1 comprises: a film processing device 10; a belt-like film conveying device 5; a belt-like film tension mechanism 15; a detector 19 which detects movable rolls 18a, 18b being displaced; and a control device 26 which controls tension of a belt-like film Fw based upon a signal from the detector 19, and also controls conveyance of the belt-like film Fw with a signal from a length measuring instrument 51. The control device 26 has a function of determining, when detecting a signal from the detector 19 or length measuring instrument 51, a detected position as a position where the belt-like film is drawn out, and makes an indication to eject as a defective a certain range on a belt-like film front end side from the drawing-out position.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a bag making and packaging machine, and more specifically, it is possible to detect that a belt-like film has been pulled out while the bag filling and packaging machine is stopped, and the leading end side from the drawn part is regarded as a defective product. The present invention relates to a bag making and filling and packaging machine capable of discharging.

  Conventionally, for example, in a vertical bag making filling and packaging machine, a belt-shaped film fed from a raw roll is fed downstream by a paper feed mechanism and is formed into a cylindrical shape by a cylinder making machine in the width direction. After the vertical seal is applied to both ends of the product, the product as a packaged product is loaded and filled, and then the horizontal seal device is installed in the width direction of the tubular film at a position between the products. A bag package in which the product is filled in the packaging bag is manufactured by applying a seal and cutting with a cutter at the center of the horizontal seal.

  The belt-shaped film is fed out so as not to be slack or excessively pulled, that is, in a state where an appropriate tension is maintained.

As a mechanism to maintain this moderate tension, it is equipped with a linear lift type dancer roll, the position of this dancer roll is detected by a digital signal, and the weight can be easily adjusted to maintain an appropriate tension. A film tension mechanism of a bag filling and packaging machine is known (see Patent Document 1).
In the technique disclosed in Patent Document 1, the dancer roll unit and the belt unit are connected by a connecting slope, a rotary encoder is provided on the belt unit side, and the position of the dancer roll is detected by the rotary encoder. ing.

JP 2012-240739 A

By the way, during the production of the bag package by the vertical bag making and filling machine, there may be a situation in which the operation of the vertical bag making and filling machine has to be stopped for some reason.
For example, after a predetermined amount of product is put into a cylindrical packaging material manufactured by a cylinder making machine, the flow of the product becomes worse and the product is clogged in the middle. An alarm signal is transmitted from an alarm device provided in the filling and packaging machine. Then, it is necessary to stop the operation of the vertical bag making and packaging machine, investigate the cause of the alarm signal, and remove the cause.
Then, if the packaged product put into the tubular film is clogged, the work of pulling the tubular film downward by a predetermined dimension is performed, thereby trying to clear the clogging of the product inside the tubular film. Is done.

However, when the cylindrical film is moved downward by a predetermined dimension, the strip-shaped film before reaching the cylinder making machine is also drawn out to the cylinder making machine side.
In this case, when the operation is restarted as it is, the date of the production date, the expiration date, the expiration date, etc. The belt-like film is sequentially sent in a state where no information is printed or in a state where the bag is not cut or labeled with a V notch or the like.
As a result, there is a problem that the date is not printed, or products without cutting or labeling are produced as normal products, and if those products are put on the market by mistake, it becomes a big social problem. It becomes a very big negative image for the company.

However, in the film tension mechanism of the vertical bag making filling and packaging machine disclosed in Patent Document 1, the looseness of the packaging material accompanying the feeding of the packaging material of a length corresponding to one bag by the paper feeding means The purpose is to prevent stretching and maintain an appropriate tension, and it is configured to always maintain a constant tension.
Therefore, when the belt-shaped film is pulled out by, for example, pulling a part of the cylindrical film while the operation of the vertical bag making filling and packaging machine is stopped, the state of being pulled out is maintained. Therefore, it is not possible to detect the shift amount (drawing amount) of the drawn strip-shaped film. As a result, it is impossible to solve the above-described problem that a product with no date printed on the drawn portion is produced as a normal product.

  Further, in the film tension mechanism of the above vertical bag making filling and packaging machine, since the position of the dancer roll is detected by the rotary encoder, an analog / digital conversion circuit is not required, and the configuration of the control unit is simplified. Has a problem that the mechanism is complicated because the mechanism for moving the belt vertically includes a slide shaft, a slider, a toothed endless belt, an attachment block for attaching the belt unit to the machine frame side plate, and the like.

(Object of invention)
The present invention has been proposed in order to solve the above-mentioned problems. The object of the present invention is to detect a pulled-out portion of a strip-shaped film when the bag-making filling and packaging machine is stopped, and An object of the present invention is to provide a bag-filling-packaging machine having a simple configuration that can be discharged as a good product.

In order to achieve the above object, a bag-filling and packaging machine according to the present invention includes a film processing apparatus for processing a band-shaped film, a band-shaped film transporting apparatus that transports the band-shaped film, a fixed roll, and a movable roll. A tension applying device for the belt-shaped film, a detector for detecting the displacement of the movable roll, the tension of the belt-shaped film is controlled based on a signal from the detector, and a signal from the length measuring device is used to control the tension of the belt-shaped film. In a bag making filling and packaging machine provided with a main control device for controlling conveyance,
While the operation of the bag making and filling machine is stopped, the control device monitors the signal from the detector, and when detecting the signal from the detector, when the operation is resumed, the detected position is the band-like film. The main control device has a function of instructing to discharge a certain range on the leading end side of the belt-like film from the drawn position as a defective product as a defective position in the film processing device. It is characterized by having.

According to the bag making and filling machine of the present invention, when the main controller detects a signal from the detector while the bag making and filling machine is stopped, the position is regarded as the position where the belt-like film is drawn. An instruction can be given to a predetermined discharging device so that a certain range on the leading end side of the belt-like film is discharged as a defective product.
As a result, a bag that has not been subjected to processing such as date printing, incision, and labeling is removed as a defective product at the drawn-out portion of the belt-like film, thereby preventing the outflow of such defective products. be able to.
Moreover, since the tension mechanism is configured to include a fixed roll and a movable roll, a simple configuration can be achieved.

1 is an overall schematic perspective view showing a first embodiment of a vertical bag making filling and packaging machine according to the present invention. It is a whole side view which shows the said vertical type bag making filling packaging machine. It is a whole side view which shows 2nd Embodiment of the vertical bag making filling packaging machine which concerns on this invention. It is a whole side view which shows 3rd Embodiment of the vertical bag making filling packaging machine which concerns on this invention. FIG. 5 is a front view of the bag making and filling cylinder of the vertical bag making and filling and packaging machine, as viewed in the direction of arrow V in FIG. 4.

[First Embodiment]
Hereinafter, a first embodiment of a vertical bag making filling and packaging machine according to the present invention will be described with reference to the accompanying drawings.

In the vertical bag making and filling machine 1 according to the first embodiment, the main controller 26 monitors a signal from a rotary encoder 19 as a detector described later while the bag making and filling machine is stopped. When a signal from the encoder 19 is detected, the function of the main control device 26 causes the processing position of the film processing device such as the date printing device 10 to be defective when the operation is restarted. A certain range is configured to be discharged as a defective product.
That is, while the operation of the vertical bag making and filling machine 1 is stopped, for example, the belt-like film drawn out as a result of handing the tubular film Ft formed by the tube making machine 3 and attached to the bag making and filling tube 4. In order to prevent the product that has not been printed with date information, cutting, labeling, etc., or the product whose processing position has been shifted from Fw as a normal product, It can be detected and discharged as a defective product.
And the vertical bag making filling packaging machine 1 is equipped with the strip | belt-shaped film position shift detection apparatus 20 in order to detect that the strip | belt-shaped film Fw was pulled out.

As shown in FIGS. 1 and 2, the vertical bag making filling and packaging machine 1 includes an original fabric roll Fr around which a predetermined amount of a belt-like film Fw is wound.
On the downstream side of the flow of the strip-shaped film Fw of the original fabric roll Fr (the leading end side of the strip-shaped film Fw), a tension mechanism 15 which is a tension applying device for the strip-shaped film that constitutes a part of the strip-shaped film position deviation detection device 20. Is disposed further downstream of the flow of the tension mechanism 15, and a cylinder making device 3 for forming the belt-like film Fw passing through the tension mechanism 15 into a tubular shape, and the cylinder making device 3 are provided at the upper part. In addition, a bag making and filling cylinder 4 to which a cylindrical film Ft formed by the cylinder making device 3 is attached is disposed.

In the vertical bag making and filling machine 1, the film-like film Fw drawn from the raw roll Fr passes through the tension mechanism 15 and is then disposed at a predetermined position before reaching the cylinder making device 3. A date printing device 10 that is a device and a date inspection device 11 that is arranged on the downstream side of the flow in the vicinity of the date printing device 10 and inspects each date information printed by the date printing device 10 are arranged.
The date printing device 10 is configured to print date information such as the date of manufacture, the expiration date, and the expiration date on the strip film Fw, for example.

Specifically, the date printing device 10 is disposed at a substantially intermediate position between the fixed guide roll 2d and the fixed guide roll 2f at the top position on the downstream side of the tension mechanism 15 of the strip film Fw.
The date printing device 10 is disposed on one surface side of the belt-like film Fw, and is fixed to an unillustrated machine frame via an unillustrated attachment member.
Further, the date inspection device 11 is disposed at a position near the date printing device 10 on the downstream side of the flow of the date printing device 10 and is fixed to a machine frame (not shown) via an attachment member.

Further, on the downstream side of the flow of the date inspection device 11, a cutting mechanism 12 that is a film processing device for making a cut such as a V notch into the bag is disposed at a position close to the date inspection device 11. .
Further, on the downstream side of the flow of the cutting mechanism 12, a label attaching device 13 which is a film processing device for attaching a predetermined label to the bag is disposed. The cutting mechanism 12 and the label attaching device 13 are fixed to an unillustrated machine frame via an attachment member.

  The belt-like film Fw drawn from the original fabric roll Fr is guided to the fixed guide rolls 2a and 2b arranged between the original fabric roll Fr and the tension mechanism 15, and after passing through the tension mechanism 15, a plurality of films It is sent to the cylinder making machine 3 while being guided by the fixed guide rolls 2c to 2h.

  The belt-like film Fw sent to the tube making device 3 is wound around the bag making and filling tube 4 from the state covered with the tube making device 3, and at the same time, both edges in the width direction of the belt-like film Fw. Are overlapped to form the tubular film Ft.

In the bag making and filling cylinder 4, a paper feed mechanism 5, which is a film transport device for sending the cylindrical film Ft downward, is provided below the cylinder making device 3.
As shown in FIG. 1, the paper feeding mechanism 5 is composed of a pair of paper feeding belts 5A and 5A installed with a bag making and filling cylinder 4 sandwiched therebetween, and the paper feeding belts 5A and 5A are used to form a cylinder. The film-like film Ft is fed downward (side seal device 9 side) by a predetermined feed amount.
Each of the paper feed belts 5A and 5A includes belt support shafts 5a and 5a arranged above and below, belts 5b and 5b wound around these belt support shafts 5a and 5a, and predetermined belt belts 5b and 5b. In order to maintain the tension, the guide members 5c and 5c disposed outside the belt support shafts 5a and 5a are provided.

  As shown in FIG. 2, a paper feed servo motor 6 for driving the paper feed belts 5A and 5A is connected to the belt support shafts 5a and 5a. The paper feed servo motor 6 is a paper feed control unit. 7, the feed speed is controlled.

In one side of the bag making and filling cylinder 4 orthogonal to the paper feed mechanism 5 (on the opposite side of the original fabric roll Fr with the date printing device 10 in between), the two ends of the tubular film Ft are vertically stacked. A vertical sealing device 8 for applying the seal Ft1 is arranged.
The vertical sealing device 8 is configured to include a pair of vertical sealing members 8a and 8a that are arranged to face each other and each incorporates a heater (not shown).

As shown in FIG. 1, the vertical sealing members 8a and 8a have a shape elongated in the vertical direction and can be opened and closed in the horizontal direction (Y direction; see FIG. 2) connecting the paper feeding belts 5A and 5A. This opening / closing operation is performed by a servo motor (not shown). The servo motor is connected to the main controller 26.
Further, the vertical seal Ft1 is applied by heating and compressing the overlapped end portion of the tubular film Ft from the left and right by the vertical seal members 8a and 8a.

In the bag making and filling cylinder 4, a horizontal sealing device 9 is disposed below the paper feeding mechanism 5 and the vertical sealing device 8. The horizontal sealing device 9 includes a pair of horizontal sealing members 9a and 9a that are arranged to face each other and each incorporates a heater (not shown).
As shown in FIG. 1, the horizontal sealing members 9a and 9a have a shape that is long in the horizontal direction and can be opened and closed in the horizontal direction (X-axis direction orthogonal to the Y-axis). This is performed by a motor (not shown). The servo motor is connected to the main control unit 26.
And the horizontal seal | sticker Ft2 is given by carrying out the heat | fever narrowing from the front-back direction so that the edge part on which the cylindrical film Ft was piled up may cross the cylindrical film Ft with the members 9a and 9a for horizontal sealing.

  Finally, the cylindrical film Ft in which the product P as a packaged product is stored and the vertical seal Ft1 and the horizontal seal Ft2 are applied is cut into the horizontal seal members 9a and 9a of the horizontal seal device 9. It is cut by a blade (not shown). And thereby, the bag packaging body BP which accommodated the said product P inside is manufactured.

The tubular film Ft is temporarily stopped after a predetermined feed amount is fed downward by the paper feed mechanism 5 and is subjected to vertical sealing during that time, and the product P is filled with the bag making and filling cylinder 4. Through the inside of the. In addition, the product P is input from a product input unit 4 </ b> A provided on the upper part of the bag making and filling cylinder 4.
Next, after the lateral seal Ft2 is applied, the sheet is cut by a cutting blade (not shown) built in the lateral seal members 9a, 9a. And thereby, the bag packaging body BP which accommodated the product P inside is manufactured.

As shown in FIGS. 1 and 2, the belt-like film position deviation detection device 20 includes a length measuring device 50 provided so as to be able to contact the outer periphery of the bag making and filling cylinder 4.
The length measuring device 50 is configured to allow the length measuring device 50 to directly detect the amount of movement of the tubular film Ft when the tubular film Ft is drawn while the operation of the vertical bag making and filling machine 1 is stopped. It is. In addition, the front shape of the length measuring device 50 is a shape as shown in FIG.

  That is, as described above, the length measuring device 50 measures the actual feed amount of the tubular film Ft that is hand-drawn while the operation of the vertical bag making and filling machine 1 is stopped. The length measuring roll 52 is attached to the rotary shaft of the rotary encoder 51. And the bag making filling cylinder 4 and the length measuring roll 52 are attached so as to narrow the cylindrical film Ft. The rotary encoder 51 is attached to a machine frame (not shown) via a fixture (not shown).

Since the length measuring roll 52 is in contact with the tubular film Ft, the length measuring roll 52 rotates when the tubular film Ft is processed toward the downstream side. Since the length measuring roll 52 is attached to the rotary shaft of the rotary encoder 51, the movement amount of the tubular film Ft can be measured by the rotation angle of the rotary encoder 51.
In other words, it is possible to measure the amount of withdrawal of the strip film Fw, that is, the amount of deviation.

  The length measuring device 50 is connected to the paper feed control unit 7, and the feed amount of the paper feed mechanism 5 is controlled by the paper feed control unit 7 based on a signal from the length measuring device 50.

Next, the details of the tension mechanism 15 which is a part of the configuration of the packaging material misalignment detection device 20 will be described with reference to FIGS.
The tension mechanism 15 is provided between the original fabric roll Fr and the date printing device 10, and includes frame members 16 and 16 arranged at predetermined intervals in both widthwise ends of the original fabric roll Fr. ing.
These frame members 16, 16 are formed of plate-shaped members having a predetermined length, and both frame members 16, 16 are connected to one end of the frame members 16, 16 on the bag making and filling cylinder 4 side. A fixing roll 17 is fixed. The both ends of the fixing roll 17 are fixed to a machine frame (not shown).

  Two tension rolls 18a and 18b, which are movable rolls, are laid on the other end (raw roll Fr side) side of the frame members 16 and 16 at a predetermined interval. The tension rolls 18a and 18b are rotatable, and the belt-like film Fw is wound around a part of the outer periphery of each tension roll 18a and 18b.

In addition, a fixed guide roll 2c is disposed at an upper position outside the tension rolls 18a and 18b.
The fixed guide roll 2c is disposed above the tension rolls 18a and 18b and at a substantially intermediate position in the horizontal direction, and the end of the fixed guide roll 2c is fixed to a machine frame (not shown).

As described above, the belt-like film Fw fed out from the original fabric roll Fr is wound around the tension rolls 18a and 18b and the fixed guide roll 2c in a zigzag state.
Since both ends of the fixed guide roll 2c are fixed to the machine frame as described above, and the tension rolls 18a and 18b are rotatable, the strip film Fw is drawn downstream as a result of the tubular film Ft being drawn. When the belt-shaped film Fw is moved, the tension rolls 18a and 18b move upward via the fixed guide roll 2c.
Then, the other end side of the frame members 16, 16 swings upward along the arrow A direction with the fixing roll 17 of the frame members 16, 16 as a base point.

As shown in FIG. 2, a rotary encoder 19 that detects a rotation angle of the fixed roll 17 is connected to the fixed roll 17, and the rotary encoder 19 is connected to a tension control unit 25.
Here, the positions of the solid line frame members 16 and 16 and the tension rolls 18a and 18b shown in FIG. 2 are the arrangement positions (initial positions) during normal operation, and the positions indicated by the phantom lines are drawn by the tubular film Ft. As a result, it is the position when it is pulled out downstream.

The tension control unit 25 detects the amount of the belt-shaped film Fw withdrawn by detecting the amount of movement of the drive shaft (the amount of change in the rotation angle) of the servomotor 27 for driving the fabric roll provided in the fabric roll Fr. It can be done.
The tension control unit 25 is connected with a servo motor 27 for driving the raw roll, and the servo motor 27 is drawn based on the amount of the belt-like film Fw detected by the tension control unit 25. The rotation is controlled to be the optimum rotation after the rotation, that is, the rotation according to the diameter of the raw roll Fr.

The above-described tension mechanism 15, the rotary encoder 19, the tension control unit 25, and the length measuring device 50 constitute the positional deviation detection device 20.
In the present embodiment, the length measuring device 50 may be omitted.

In the vertical bag making and filling machine 1, the product P is filled into the tubular film Ft from the upstream side through the inside of the bag making and filling tube 4 via the product input part 4A, and between the product P and the product P. The horizontal seal Ft2 is applied by the horizontal seal device 9 in the direction crossing the tubular film Ft at the position, and is cut by a cutting blade (not shown) provided in the horizontal seal device 9 in the middle of the horizontal seal Ft2. A bag package BP in which the product P is wrapped in the package is produced.
Here, when the belt-like film Fw drawn out during the stoppage of the machine is discharged as a defective product, the part corresponding to the defective product reaches the position of the horizontal sealing device 9 according to a command from the main controller 26. When cutting with the above-mentioned cutting blade, the cut portion may be transported to a predetermined discharge place.
The vertical bag making and packaging machine 1 of the present embodiment is an intermittent type that temporarily stops the descent of the tubular film Ft when the vertical seal Ft1 and the horizontal seal Ft2 are applied.

Here, the paper feed servomotor 6 for controlling the paper feed mechanism 5 and the positional deviation detection device 20 are controlled by a main control device 26 for controlling the entire machine.
Further, the main control device 26 starts and stops the operation of the vertical bag filling and packaging machine 1, operates the date printing device 10 and the date inspection device 11, instructs cutting by the cutting device 12, and applies labels by the labeling device 13. The processing instruction, the timing of loading the product P from the product loading unit 4A, and the opening / closing operations of the vertical sealing device 8 and the horizontal sealing device 9 are controlled.

Next, the operation of the vertical bag making and filling machine 1 having the above configuration will be described.
First, at the time of normal operation, the main controller 26 controls the servomotor 27 for driving the raw roll, the paper feed servomotor 6 for driving the paper feed mechanism, the date printing device 10, the date inspection device 11, the cutting device 12, By driving the labeling device 13 or the like, the belt-like film Fw is continuously drawn out from the raw roll Fr.
The belt-like film Fw is sent to the cylinder making machine 3 via the tension mechanism 15, passes through the cylinder making machine 3, moves to the bag making and filling cylinder 4, and follows the inner shape of the bag making and filling cylinder 4. It is formed in a cylindrical shape. At this time, both side edges in the moving direction of the belt-like film Fw are overlapped with each other so that a vertical seal can be applied.

After the vertical seal Ft1 is applied by the vertical seal device 8 to the cylindrical film Ft formed in a cylindrical shape along the inner surface shape of the bag-filling cylinder 4, the product P which is an object to be contained is a product input unit. It is supplied into the cylindrical film Ft at predetermined intervals from 4A.
Then, the tubular film Ft is sent downward with the product P contained therein, and at a predetermined position, the transverse sealer device 9 performs a lateral seal Ft2 and is cut by a cutter, whereby the product P is contained. The completed packaging bag body BP is completed.

Here, during the production of the bag packaging body BP by the vertical bag making filling and packaging machine 1, for example, after a predetermined amount of the product P is put into the cylindrical film Ft produced by the cylinder making machine, the flow is caused for some reason. Since it gets worse and gets stuck on the way, it can stop further work, so the machine is stopped and the cause is investigated.
When the product P put into the tubular film Ft is clogged, the tubular film Ft is moved downward by a predetermined dimension, thereby improving the flow of the product P inside the tubular film Ft. It has been broken.

However, when the tubular film Ft is moved downward by a predetermined dimension, the belt-like film Fw before reaching the tube making device 3 is also drawn out to the tube making device 3 side.
In this case, when the operation is resumed as it is, the manufacturing date, the expiry date, the expiration date, etc., which should have been printed on the portion of the strip-shaped film Fw drawn out as a result of being hand-drawn. The strip-shaped film Fw is sequentially sent in a state in which the date information is not printed, a state in which the cutting operation is not performed, and a state in which no label is attached.
As a result, as described above, there arises a problem that a product on which no date is printed is produced as a normal product.

In the first embodiment, as described above, when the operation is resumed, the tension control unit 25 of the misalignment detection device 20 receives the signal from the rotary encoder 19 and the belt-shaped film Fw is drawn out. And a certain range on the front end side of the extracted part is discharged as a defective product.
That is, first, the main controller 26 controls the misalignment detector 20 and the tension controller 25, and the tension controller 25 detects the amount of change in the rotation angle of the rotary encoder 19 and pulls out the belt-like film Fw. It is detected that

Thereafter, in order to discharge the leading end side of the strip-shaped film Fw including the drawn-out portion as a defective product, the strip-shaped film Fw is transferred to the bag making and filling cylinder 4 via the cylinder making device 3 according to a command from the main controller 26. After being guided and formed on the tubular film Ft, the vertical seal Ft1 is applied by the vertical seal device 8 and then sent to the horizontal seal device 9.
And the part of the fixed range of the front end side treated as inferior goods including the extracted site | part is discharged | emitted as a continuous bag by performing the process which does not operate a cutter, although the horizontal seal | sticker Ft2 is given.

  In addition, in this 1st Embodiment, after the strip | belt-shaped film Fw of the fixed range containing the site | part pulled out was formed in the cylindrical film Ft, after cutting | disconnecting the site | part with a cutter, it discharged | emitted, but for safety, The belt-shaped film Fw and the tubular film Ft before (including the leading end side) including the drawn portion may be discharged as defective products.

According to the vertical bag making and filling and packaging machine 1 of the first embodiment configured as described above, the following effects are obtained.
(1) When the main controller 26 detects a signal from the rotary encoder 19 while the operation of the vertical bag making filling and packaging machine 1 is stopped, the position is regarded as the position from which the belt-like film Fw is drawn, and the belt-like film therefrom. An instruction can be given to the lateral sealing device 9 so that a certain range on the front end side is discharged as a defective product.
As a result, bags that are not subjected to processing such as date printing, incision, and labeling can be discharged as defective products on the drawn-out portion of the strip-shaped film Fw, and the outflow of such defective products can be prevented. Can be achieved.

(2) Since the tension mechanism 15 has a configuration in which the fixed roll 17 and the two tension rolls 18a and 18b are attached to the pair of frame members 16, the displacement of the swing angle can be detected with a simple configuration. In addition, the amount of deviation can be detected.

(3) The tension mechanism 15 includes a fixed roll 17 provided on the pair of frame members 16 and two tension rolls 18a and 18b that swing around the fixed roll 17, and each tension roll 18a, The belt-shaped film Fw is wound around 18b via the fixed guide roll 2c arrange | positioned above them. As a result, even if the amount of the belt-like film Fw to be pulled out is large, the fixed guide roll 2c is interposed between the tension rolls 18a and 18b, so that the swing range (swing angle) can be reduced. Space can be planned.

[Second Embodiment]
Next, with reference to FIG. 3, 2nd Embodiment of the vertical bag making filling packaging machine which concerns on this invention is described.
As shown in FIG. 3, the vertical bag making filling and packaging machine 1 </ b> A of the second embodiment is configured to include a misalignment detection device 30. Further, the positional deviation detection device 30 is configured to include a tension mechanism 35, a movement amount detection sensor 39, and a tension control unit 45.

In the tension mechanism 35 that is the belt-like film tension applying device of the present embodiment, the shaft portion of the tension roll 38 that is a movable roll constituting the tension mechanism 35 moves up and down in the vertical direction along the engagement groove 36 </ b> A of the frame member 36. The configuration is different from the swing type tension mechanism 15 of the first embodiment.
However, other configurations are substantially the same as those in the first embodiment. Therefore, the same constituent members are denoted by the same reference numerals and detailed description thereof is omitted.

  In the misalignment detection device 30 of the second embodiment, the belt-like film Fw drawn from the original fabric roll Fr is fixed to the fixed guide rolls 32a and 32b disposed between the original fabric roll Fr and the tension mechanism 35. In addition to being guided, after passing through the tension mechanism 35, it is sent to the cylinder making machine 3 and the bag making and filling cylinder 4 while being guided by a plurality of fixed guide rolls 32 c to 32 e.

  The belt-like film Fw sent to the tube making device 3 is wound around the bag making and filling tube 4 from the state covered with the tube making device 3, and at the same time, both edges in the width direction of the belt-like film Fw. Are stacked to form a tubular film Ft.

The tension mechanism 35 is configured such that at least one tension roll 38, which is the movable roll, is disposed between the guide rolls 32b, 32c, which are two fixed rolls, and is movable in the vertical direction. The tension mechanism 35 is disposed between the original fabric roll Fr and the date printing device 10.
The tension mechanism 35 includes a pair of plate-like frame members 36, and the frame members 36 are arranged so as to face each other and be substantially perpendicular to each other.
For example, both ends of the frame member 36 are fixed to the machine frame by mounting members (not shown). Further, as described above, the frame member 36 is formed with an engagement groove 36A having a predetermined length that allows the shaft portion of the tension roll 38 to move up and down in the vertical direction.

  When the belt-like film Fw connected to the fixed guide roll 32b and the fixed guide roll 32c is wound around a part of the outer periphery of the tension roll 38, and the operator holds the tubular film Ft while the machine operation is stopped The tension roll 38 moves upward along the engagement groove 36 </ b> A of the frame member 36 with the movement of the belt-like film Fw drawn out by the manual operation.

In the vicinity of the tension mechanism 35, a belt-shaped film movement amount detection sensor 39 for detecting the movement amount of the tension roll 38 in the vertical direction is arranged.
The movement amount detection sensor 39 includes a second sensor member 39-2, a third sensor member 39-3, and a fourth sensor member 39 that are disposed in order from the first sensor member 39-1 disposed at the lowermost position. -4 and the fifth sensor member 39-5 arranged at the uppermost position.
For example, when the tension roll 38 is at the position of the first sensor member 39-1, the reference position (initial position) of the strip film Fw is set, and the position of the third sensor member 39-3 shown in FIG. This is the position of the strip-shaped film Fw drawn out by a predetermined amount as a result of the tubular film Ft being handed over.

The movement amount detection sensor 39 is connected to the tension control unit 45.
The tension control unit 45 checks the distance between the predetermined sensors of the movement amount detection sensor 39, for example, the difference between the first sensor member 39-1 and the third sensor member 39-3, thereby extracting the amount of the strip-shaped film Fw to be drawn. Can be detected.

  The tension control unit 45 is connected to the servomotor 27 for driving the raw fabric roll. The servomotor 27 draws out the belt-shaped film Fw detected by the tension control unit 35 based on the drawing amount. The rotation is controlled so as to be the optimum rotation after the rotation, that is, the rotation according to the diameter of the raw roll Fr.

  The second embodiment includes the tension mechanism 35 including the tension roll 38 described above, the movement amount detection sensor 39 including the first sensor member 39-1 to the fifth sensor member 39-5, and the tension control unit 45. The positional deviation detection device 30 is configured.

The operation of the vertical bag making and filling machine 1A of the second embodiment configured as described above will be described.
The overall operation of the vertical bag making and filling machine 1A is that the configurations of the tension mechanism 35 and the movement amount detection sensor 39 are different from the configurations of the tension mechanism 15 and the rotary encoder 19 of the first embodiment. Although the operation of the portion differs between the two, the overall operation is substantially the same as that of the vertical bag making and filling machine 1, 1A of both embodiments.

When the cylindrical film Ft is drawn while the operation of the vertical bag making filling and packaging machine 1A is stopped, and the predetermined amount of the film Fw is pulled along with it, the amount of movement is controlled by the tension control unit 35 before the operation is resumed. The distance between the predetermined sensors of the detection sensor 39, for example, the position of the third sensor member 39-3 of the tension roll 38 that is pulled out and stopped from the first sensor member 39-1 that is a reference position (initial position). By checking the difference between them, the amount of the strip-shaped film Fw drawn is detected.
When the drawing amount of the belt-like film Fw is detected, based on the information, the rotation of the original roll driving servomotor 27 is the optimum rotation after being drawn, that is, the rotation according to the diameter of the original roll Fr. It is controlled to become.

The subsequent procedure is the same as that in the first embodiment.
That is, the band-shaped film Fw treated as a defective product including the drawn-out portion is guided to the bag making and filling cylinder 4 through the cylinder making device 3 and formed there on the cylindrical film Ft. After the vertical seal Ft1 has been applied, it is sent to the horizontal seal device 9.
And the part of the fixed range of the front end side treated as inferior goods including the extracted site | part is discharged | emitted as a continuous bag by performing the process which does not operate a cutter, although the horizontal seal | sticker Ft2 is given.

According to the vertical bag making and filling machine 1A of the second embodiment configured as described above, the following effects can be obtained.
(4) Even when the belt-shaped film Fw is pulled out while the vertical bag making and filling machine 1A is stopped, the tension roll 38 is moved vertically along the engaging groove 36A of the vertical frame member 36 constituting the tension mechanism 35. When the plurality of movement amount detection sensors 39 detect the vertical movement of the tension roll 38, it can be confirmed that the belt-like film Fw has been pulled out. After that, the main control unit 26 can issue a command to the horizontal seal device 9 so as to discharge a certain range on the front end side from the drawn portion and discharge it as a defective product such as a print omission. It is possible to prevent the outflow of the product such as none.

(5) Since the tension mechanism 35 has a configuration in which one tension roll 38 is disposed between the two guide rolls 32b and 32c and is movable in the vertical direction, the displacement amount can be detected with a simple configuration. can do.

[Third embodiment]
Next, a third embodiment of the present invention will be described with reference to FIGS.
As shown in FIG. 4, the positional deviation detection device 40 in the vertical bag making and filling machine 1 </ b> B of the third embodiment includes a tension mechanism 35 and a movement amount detection sensor 39 of the second embodiment, and the bag making and filling cylinder. 4 and a length measuring device 50 provided so as to be able to come into contact with the outer periphery of 4.
The vertical bag making and filling machine 1B according to the third embodiment has an overall configuration in which the length measuring device 50 is added to the configuration of the vertical bag making and filling machine 1A according to the second embodiment.
Therefore, in 2nd Embodiment and 3rd Embodiment, the same code | symbol is attached | subjected to the same structure and the same structural member, detailed description is abbreviate | omitted, and the length measuring device 50 which is a different structure part is demonstrated.

As described in the first embodiment, the length measuring device 50 measures the actual feed amount of the tubular film Ft that is hand-drawn while the operation of the vertical bag making and filling machine 1B is stopped. 51 and a length measuring roll 52 attached to the rotary shaft of the rotary encoder 51.
And the bag making filling cylinder 4 and the length measuring roll 52 are attached so as to narrow the cylindrical film Ft. The rotary encoder 51 is attached to a machine frame (not shown) via a fixture (not shown).

Since the length measuring roll 52 is in contact with the tubular film Ft, the length measuring roll 52 rotates when the tubular film Ft is processed toward the downstream side. Since the length measuring roll 52 is attached to the rotary shaft of the rotary encoder 51, the movement amount of the tubular film Ft can be measured by the rotation angle of the rotary encoder 51.
In other words, it is possible to measure the amount of withdrawal of the strip film Fw, that is, the amount of deviation.

  The length measuring device 50 is connected to the main control unit 26, and the main control unit 26 can detect the rotation angle of the rotary encoder 51.

  In the misregistration detection device 40 of the third embodiment, in addition to the length measuring device 50, the tension mechanism 35 and a movement amount detection sensor 39 are provided, and these detect the amount of withdrawal of the belt-like film Fw. be able to. As a result, in the third embodiment, double detection of detection by the length measuring device 50 and detection by the tension mechanism 35 and the movement amount detection sensor 39 is possible, and more accurate detection is possible.

  In the third embodiment, when the movement of the tension roll 38 of the tension mechanism 35 cannot be detected by the movement amount detection sensor 39, for example, the movement of the tension roll 38 is changed from the first sensor member 59-1 at the initial position. If the distance does not reach the two sensor members 59-2, the second sensor member 59-2 cannot detect the movement distance, but even in that case, the length measuring device 50 moves the tubular film Ft. By detecting the amount, the pull-out amount of the strip film Fw can be detected, and safety can be ensured.

According to the vertical bag making and filling machine 1B of the third embodiment configured as described above, the following effects can be obtained in addition to substantially the same effects as the above (4) and (5).
(6) The length measuring device 50 is disposed above the paper feed mechanism 5 and in the vicinity of the paper feed mechanism 5, and the tubular film Ft attached to the nearby bag making and filling cylinder 4 is moved downward. When this is done, the movement of the tubular film Ft can be directly detected by the length measuring device 50 including the length measuring roll 52 and the rotary encoder 51, so that an accurate amount of movement can be detected. As a result, the information can be accurately sent to the paper feed mechanism 5, and the paper feed mechanism 5 can accurately transport the cylindrical film Ft, that is, the accurate feed operation.

(7) In the third embodiment, in addition to the length measuring device 50, a tension mechanism 35 and a movement amount detection sensor 39 are provided, and these can detect the pull-out amount of the belt-like film Fw. As a result, double detection of detection by the length measuring device 50 and detection by the tension mechanism 35 and the movement amount detection sensor 39 is possible, and more accurate detection is possible.

(8) Further, in the third embodiment, even when the movement amount of the tension roll 38 cannot be detected by the movement amount detection sensor 39, the belt-shaped film Fw is detected by detecting the movement amount of the cylindrical film Ft by the length measuring device 50. Since the amount of drawer can be detected, safety can be ensured.

  Although the present invention has been described with reference to the above embodiments, the present invention is not limited to the above embodiments. Various changes that can be understood by those skilled in the art can be made to the configuration and details of the present invention. Further, the present invention includes a combination of some or all of the configurations of the above-described embodiments as appropriate.

For example, in the misalignment detection device 20 in the first embodiment, the tension mechanism 15 has a configuration in which the fixed roll 17 is provided at one end of the pair of frame members 16 and the two tension rolls 18a and 18b are provided at the other end side. However, it is not limited to this. It is good also as a structure which provided one tension roll.
That is, in FIG. 2, for example, the belt-like film Fw may be hung from the fixed guide roll 2b to the tension roll 18b, and may be hung around the fixed guide roll 2c and the fixed guide roll 2d in a zigzag manner.

  Further, the positional deviation detection device 20 in the vertical bag making and filling machine 1 of the first embodiment is configured to include the length measuring device 50 provided so as to be able to contact the outer periphery of the bag making and filling cylinder 4. However, the configuration is not limited to this, and the length measuring device 50 may not be included. Even in this case, the tension mechanism 15 and the rotary encoder 19 that is a detector can detect that the belt-like film Fw has been pulled out, and can lead to subsequent discharge work as a defective product. Can do.

  Further, in the positional deviation detection devices 30 and 40 in the vertical bag making and filling machines 1A and 1B of the second and third embodiments, the movement amount detection sensor 39 is replaced with the first to fifth sensor members 39-1 to 39. Although it is configured with five sensor members of −5, it is not limited thereto. It is good also as a structure which installed more or less sensor members. However, it is necessary to install at least one.

Furthermore, the second embodiment is a detection method for detecting the pull-out amount of the strip-shaped film Fw drawn as a result of pulling the tubular film Ft attached to the bag-filling cylinder 4 downward. However, it is not limited to this.
For example, when a machine accidentally retreats the strip-shaped film Fw, for example, in the vicinity of the cylindrical device 3 when the machine operation is resumed after a nighttime holiday, or when the machine operation is stopped such as machine inspection. As a result, it can be detected that the belt-like film Fw has been pulled out by the tension mechanism 35, and can be linked to a subsequent discharge operation as a defective product.

  In each of the above embodiments, the vertical bag making filling and packaging machine 1, 1A, 1B is used as the bag making filling and packaging machine. However, the present invention is not limited to this, and the bag making filling and packaging machine is a horizontal bag making machine. It can also be applied to a filling and packaging machine.

  INDUSTRIAL APPLICABILITY The present invention can be used, for example, when detecting that a belt-shaped film has been pulled out while the operation of a vertical bag making filling and packaging machine is stopped, and discharging the portion as a defective product.

1 Vertical bag making filling and packaging machine (first embodiment)
1A Vertical bag making filling and packaging machine (second embodiment)
1B Vertical Bag Making Filling and Wrapping Machine (Third Embodiment)
3 Cylinder making machine 4 Bag making and filling cylinder 5 Paper feed mechanism (film transport device)
7 Paper Feed Control Unit 8 Vertical Sealing Device 9 Horizontal Sealing Device 10 Date Printing Device 15 Tension Mechanism (Tensioning Device)
16 Frame member 17 Fixed roll 18a Tension roll 18b Tension roll 19 Rotary encoder (detector)
20 Misalignment detection apparatus (first embodiment)
25 Tension Control Unit 26 Main Control Device 30 Misalignment Detection Device (Second Embodiment)
35 Tension mechanism (tensioning device)
36 Frame member 38 Tension roll (movable roll)
39 Movement amount detection sensor 40 Misalignment detection device (third embodiment)
50 Length measuring device 51 Rotary encoder 52 Length measuring roll Fr Raw roll Fw Strip film Ft Cylindrical film BP Package P Product that is contained

Claims (10)

A film processing device for processing a belt-shaped film;
A belt-shaped film transport device for transporting the belt-shaped film;
The belt-like film tension applying device comprising a fixed roll and a movable roll;
A detector for detecting the displacement of the movable roll;
In a bag making filling and packaging machine comprising: a main controller that controls the tension of the belt-like film based on a signal from the detector, and controls the conveyance of the belt-like film by a signal from the length measuring device,
While the operation of the bag making and filling machine is stopped, the control device monitors the signal from the detector, and when detecting the signal from the detector, when the operation is resumed, the detected position is the band-like film. The main control device has a function of instructing to discharge a certain range on the leading end side of the belt-like film from the drawn position as a defective product as a defective position in the film processing device. A bag-making filling and packaging machine characterized by comprising:   The bag making filling and packaging machine according to claim 1, further comprising a length measuring device for measuring a transport amount of the belt-like film.   The bag-making filling and packaging machine according to claim 1 or 2, wherein the belt-shaped film processing device is a date printing device, a cutting mechanism, and a label attaching device.   4. The belt-like film tension applying device according to claim 1, wherein at least one movable roll is disposed between two fixed rolls and is movable in a vertical direction. The bag making filling and packaging machine according to any one of the above.   The bag making and filling according to any one of claims 1 to 4, wherein the detector is a plurality of position detection sensors that detect vertical movement of the at least one movable roll. Packaging machine.   The belt-like film tensioning device is provided on a pair of frame members arranged in parallel to each other, a fixing roll provided on one end side of these frame members, and on the other end side of the frame member The bag making and filling and packaging machine according to claim 1, comprising at least one movable roll, wherein the other end portion is swingable with the one end portion as a base end.   The said detector is a rotary encoder which detects the rocking | fluctuation angle of the said other end part side of the said tension | tensile_strength application apparatus for strip | belt-shaped films as a change of the rotation angle of the said one end part. 6. The bag making filling and packaging machine according to 6.   The length measuring device includes a rotary roll that contacts the belt-like film and rotates as the belt-like film moves, and a rotary encoder that detects a rotation amount of the rotary roll. The bag making filling and packaging machine according to claim 2.   The bag making filling and packaging machine according to any one of claims 1 to 8, wherein the bag making filling and packaging machine is a vertical biological filling and packaging machine.   The bag making and filling machine according to any one of claims 1 to 8, wherein the bag making and filling machine is a horizontal biological filling and packing machine.

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