JP6898761B2 - Film connection device for bag making, filling and packaging machines - Google Patents

Description

The present invention relates to a film connecting device in which, for example, in a bag-making filling and packaging machine for producing a triangular pyramid-shaped bag made of a tetrahedron, the film end portion of the preceding film reel is connected to the film start end portion of the next film reel.

Conventionally, a triangular pyramid-shaped bag made of a triangular tetrahedron is widely used as a tea bag containing black tea, green tea, or the like, or a packaging bag for confectionery or the like. As shown in FIG. 6, a film for producing such a triangular pyramid-shaped bag is provided with a register mark for position detection for each film length for one bag. In the bag-making filling and packaging machine, the register mark of the traveling film was detected to make a bag and seal the upper and lower parts of the triangular pyramid-shaped bag.

In this case, the lateral sealer is installed so that the first lateral sealer that seals the tops of the two consecutive triangular pyramid bags and the second lateral sealer that seals the bottom are oriented at different directions by 90 degrees in a plan view. In this bag-making filling and packaging machine, the triangular pyramid-shaped bags are alternately formed in an upward form and a downward form. Therefore, as shown in FIG. 6, the film fa also has an upward pattern Pa and a downward pattern Pb. It is printed alternately. Further, a registration mark m is attached to the side edge of the film fa for each pattern for one bag.
In the bag-making filling and packaging machine as described above, when the film reel that supplies the film reaches the end portion, a device that connects the film start end portion of the next film reel to further continuously perform bag-making is described in, for example, Patent Document 1. Has been proposed to.

Japanese Unexamined Patent Publication No. 2004-43072

However, since the film connecting device described in Patent Document 1 has a registration mark m for each film length of one bag, an upward pattern or a downward pattern is formed when the film is connected with the registration mark m as a guide. The patterns were sometimes connected continuously. In this case, there arises a problem that a triangular pyramid bag whose pattern is upside down is manufactured with respect to the top and bottom of the manufactured triangular pyramid bag.

In view of such circumstances, it is an object of the present invention to provide a bag-making filling and packaging machine in which the top and bottom of a pattern can make a correct film connection.

The film connecting device of the bag-making filling and packaging machine according to the present invention is a bag-making device in which a terminal portion of a leading film unwound from a leading film reel and a starting end portion of a trailing film unwound from a trailing film reel are connected. In the film connecting device of the filling and packaging machine, the terminal detecting means for detecting the end of the leading film reel and the first register for detecting the register marks formed for each even number of bags in the longitudinal direction of the leading film and the trailing film, respectively. The mark sensor, the film connector that connects the end of the leading film and the start of the trailing film at the connection position, and the end detection means detect the end of the leading film reel, and then the first register mark sensor makes a registration mark. The leading film and the trailing film are provided with a control means for detecting and activating the film connector, and the upper and lower patterns are arranged alternately in the positive direction and the upper and lower patterns are arranged in the opposite direction to the positive direction. The bag-making filling and packaging machine manufactures a triangular pyramid-shaped bag from a leading film and a trailing film, and a second register mark sensor is installed on the upstream side of the bag-making filling and packaging machine to form a bag-making filling and packaging machine. The first lateral sealer and the second lateral sealer are installed at different angles at predetermined intervals in the film feed direction, and the registration mark of the leading film or the trailing film is detected by the second registration mark sensor by the control means. It is characterized in that the triangular pyramid-shaped bag is laterally sealed with the first lateral sealer or the second lateral sealer .
According to the present invention, the start end portion of the trailing film is set at the connection position, the end portion of the preceding film is detected by the termination detecting means, and the registration mark of the preceding film is detected by the first registration mark sensor. , The film connector can be operated by the control means to connect the start end of the trailing film and the end of the leading film.
Further, according to the present invention, the second register mark sensor detects the register marks of the leading film or the trailing film in which the patterns in the vertical direction and the patterns in the reverse direction are alternately arranged, thereby using the control means. By laterally sealing with the first horizontal sealer or the second horizontal sealer set in advance, it is possible to sequentially manufacture the triangular pyramid bags having the correct posture even if the triangular pyramid bags are continuously manufactured with the postures upside down.

Further, in the film connecting device according to the present invention, the length setting input means for inputting the film length for one bag of the leading film and the trailing film, and the leading film according to the film length input to the length setting input means. It is equipped with a length measuring element that measures the amount of feeding, and after detecting the registration mark of the preceding film with the first register mark sensor, it is possible to operate the film connector after feeding out the amount of feeding measured by the length measuring element of the preceding film. preferable.
In the present invention, even when the film length of the bag to be made is changed to a different one, the film can be connected without changing the installation interval of the first registration mark sensor and the film connector. That is, after the registration mark of the preceding film is detected by the first registration mark sensor, the feeding amount of the preceding film is adjusted by measuring the feeding amount of the preceding film with a length gauge based on the film length of one bag, and the rear end of the preceding film is adjusted. It is possible to connect the portion and the tip portion of the trailing film. At that time, even if the film length for one bag changes, the installation positions of the first register mark sensor and the film connector are not changed, so that the film can be easily replaced with a film having a different length.

According to the film connecting device of the bag-making filling and packaging machine according to the present invention, after the end portion of the preceding film reel is detected by the end detecting means, the register mark of the preceding film is detected by the first register mark sensor and preceded by the film connector. Since the film and the trailing film are connected, it is possible to connect based on the register mark formed for each even bag. Therefore, even if the patterns of the bags made of the film are arranged upside down, the film can be connected in the correct orientation.

It is explanatory drawing which shows the outline of the bag making filling packaging machine by 1st Embodiment of this invention. It is explanatory drawing which shows the connection position of the leading film and the trailing film by 1st Embodiment. It is a block diagram which shows the control mechanism of the bag making filling packaging machine by embodiment of this invention. It is explanatory drawing which shows the connection process of the film by 1st Embodiment. It is explanatory drawing which shows the case of performing the film connection of the bag length different from the film of the basic bag length in the film connection apparatus by 2nd Embodiment, and (a) is after the preceding film of the state before changing the bag length. The figure of the positional relationship between the end part and the tip part of the trailing film, (b) is the figure which shows the connection process of the leading film and the trailing film after changing the bag length. It is a figure which shows the conventional film.

Hereinafter, the film connecting device 2 of the bag-making filling and packaging machine 1 of the triangular pyramid-shaped bag F according to the embodiment of the present invention will be described with reference to FIGS. 1 to 5.
In the bag-making filling and packaging machine 1 of the triangular pyramid-shaped bag F according to the first embodiment shown in FIG. 1, a continuous strip-shaped leading film f fed from the leading film reel 3 is manufactured via various rollers such as a feeding roller 4. It is supplied to the bag filling and packaging machine 1. In this bag-making filling and packaging machine 1, the triangular pyramid-shaped bag F to be manufactured has a substantially tubular shape so that the side ends of the preceding film f overlap each other under the hopper (not shown) for filling the contents. A former 5 as a guide for forming the bag 6 is formed around the upper portion of the bag making tube 6.

The bag making tube 6 has a substantially cylindrical shape, for example, and is arranged vertically below the former 5 from the former. On the side surface of the bag making tube 6, a vertical sealer 8 for heat-sealing the gassho portions at both ends of the leading film f formed into a substantially tubular shape and a feeding belt 9 for feeding the leading film f downward are arranged in the circumferential direction. ing. The feeding belt 9 is, for example, a vacuum type.

Below the bag making tube 6, the top of the preceding triangular pyramid bag F formed from the substantially tubular film f and the top of the subsequent top-bottom inverted triangular pyramid bag F are simultaneously heat-sealed and cut with a cutter. The first lateral sealer 10 is provided. Further behind (upper part), a second lateral sealer 11 is provided which simultaneously heat-seals the bottom of the triangular pyramid-shaped bag F whose top and bottom are reversed and the bottom of the subsequent triangular pyramid-shaped bag F and cuts them with a cutter.
The first lateral sealer 10 and the second lateral sealer 11 are arranged so as to be sequentially openable and closable along the feeding direction of the film f. Moreover, the first lateral sealer 10 and the second lateral sealer 11 are installed at different angles of 90 degrees in a plan view.

Next, the film connecting device 2 will be described with reference to FIGS. 1 and 2.
In FIG. 1, the leading film reel 3 is installed at a predetermined position, and the leading film f wound around a shaft portion 3a having a predetermined outer diameter is unwound. The termination detecting means 14 is installed in the vicinity of the shaft portion 3a of the preceding film reel 3. As the end detection means 14, for example, an optical sensor 15 is installed so as to sandwich the outer peripheral surface of the preceding film reel 3. The optical sensor 15 is provided with a light emitting unit 16 for laser light, infrared light, and the like, and a light receiving unit 17.

When the film f is wound around the preceding film reel 3, the detection light of the light emitting unit 16 is blocked by the wound preceding film f, and when the preceding film f finishes feeding out and the shaft portion 3a is exposed, the light emitting unit 16 The detection light of the above can be received by the light receiving unit 17 to detect the end of the preceding film reel 3.
As the end detection means 14, any detection means can be adopted without being limited to the optical sensor 15. For example, the outer diameter dimension of the preceding film reel 3 may be measured and detected, or the outer diameter dimension and the amount of rotation may be detected.

A new film reel (hereinafter referred to as a trailing film reel) 18 before replacement is installed at a position adjacent to the leading film reel 3. The trailing film f1 drawn from the trailing film reel 18 is set at the initial position S where the tip end portion is overlapped and connected to the rear end portion of the leading film f. The trailing film f1 is set manually, for example, but may be set automatically.
Here, as shown in FIG. 2, the preceding film f has a pattern P printed on the film for one bag of the triangular pyramid-shaped bag F, and the same design is printed in the direction opposite to the pattern Pa in the forward direction of the same design from the front in the feeding direction. It is arranged alternately with the pattern Pb of. Then, each of the upper and lower two bags of film patterns Pa and Pb is arranged as a set with a registration mark m attached to the side edge portion. As the cash register mark m, an appropriate one such as a notch or a mark can be adopted.

Further, also in the trailing film f1, similarly, the patterns Pa and Pb are attached to the film for one bag of the triangular pyramid-shaped bag F alternately in the forward direction and the reverse direction in the vertical direction, and each set is attached to the side edge portion. They are arranged with a registration mark m.
Then, when the leading film f and the trailing film f1 are connected, the pattern Pa of one bag of the film at the tip of the trailing film f1 overlaps with the pattern Pa of the film of one bag at the end of the leading film f. It is assumed that the registration marks m are matched with each other.

Further, in FIG. 1, a film connector 20 composed of a heater or the like is installed on both the front and back sides at a position where the end portion of the leading film f and the tip portion of the trailing film f1 overlap. A first registration mark sensor 21 for detecting the registration mark m of each film f and f1 is installed on the front side of the film connector 20 in the film traveling direction. As the first registration mark sensor 21, various sensors such as an optical sensor, an infrared sensor, and an ultrasonic sensor can be adopted. The distance e between the first registration mark sensor 21 and the film connector 20 is set to a predetermined distance.
In the present embodiment, the termination detecting means 14 detects that the termination of the preceding film f has been extended from the preceding film reel 3. After that, the first register mark sensor 21 detects the register mark m of the preceding film f a predetermined number of times, and when the last register mark m is detected, the preceding film f is stopped. Then, the film connector 20 at a predetermined distance e is operated from the first registration mark sensor 21, and the films of the respective patterns Pa at the end portion of the preceding film f and the tip portion of the trailing film f1 that overlap each other are thermocompression bonded. Become. The number of times from the detection by the terminal detecting means 14 to the detection of the last registration mark m is determined by the bag length and the path length.

Next, the sealing mechanism 22 of the leading film f (or the trailing film f1) in the bag-making filling and packaging machine 1 will be described with reference to FIG.
In the transport path of the preceding film f, the second register mark sensor 23 is installed near the upstream side of the former 5 of the bag making filling and packaging machine 1. The second registration mark sensor 23 has the same configuration as the first registration mark sensor 21. By detecting the register mark m of the preceding film f (or the trailing film f1) conveyed by the second register mark sensor 23, either the first lateral sealer 10 or the second lateral sealer 11 is specified and operated. It has become like.

In the present embodiment, since the front of the film pattern Pa of the triangular pyramid bag F detected by the registration mark m of the preceding film f is the upper part, the top of the triangular pyramid bag F and the top of the next tubular film f are heated. The first lateral sealer 10 to be sealed is operated. As a result, the cash register mark m and the first horizontal sealer 10 correspond to each other.
The first lateral sealer 10 was operated to heat-seal the top of the preceding triangular pyramid-shaped bag F and the top of the next tubular film f and cut them with a cutter. Then, the first lateral sealer 10 is lowered by a predetermined distance by the lateral sealer vertical movement device 26 (see FIG. 3) as it is, and after the heating is completed, the contents are filled in the tubular film f above the first lateral sealer 10 to form the triangular pyramid bag F. The bottom portion and the bottom portion of the next tubular film f are heat-sealed with a second horizontal sealer 11.

The operation control of the film connecting device 2 and the sealing mechanism 22 of the preceding film f described above is performed by the control means 25. In the control mechanism shown in FIG. 3, the end detection means 14, the first registration mark sensor 21, and the film connector 20 of the film connecting device 2 are connected to the control means 25. Moreover, a reel position exchange device 27 is installed to move the trailing film reel 18 to the position of the leading film reel 3 after connecting the rear end portion of the leading film f and the tip end portion of the trailing film f1 with the film connector 20. ing. After that, a new replacement film reel is mounted as the trailing film reel 18 at the position where the trailing film reel 18 was.

Further, as the bag making filling and packaging machine 1, a feeding roller 4, a vertical sealer 8, a feeding belt 9, a first horizontal sealer 10, and a second horizontal sealer 11 are connected. Further, the first lateral sealer 10 and the second lateral sealer 11 are raised by a predetermined distance, and the top of the triangular pyramid-shaped bag F of the lowered tubular film f and the bottom of the bag above it are heat-sealed and cut with the second lateral sealer 11. After that, the lateral sealer vertical movement device 26 for lowering the first and second lateral sealers 10 and 11 by a predetermined distance is installed.
Further, the control means 25 is provided with a length measuring element 28 and a length setting input means 29 for the triangular pyramid-shaped bag F, which will be described later.

The film connecting device 2 of the bag-making filling and packaging machine 1 according to the first embodiment has the above-described configuration, and then the film connecting method will be described with reference to FIGS. 1 to 4.
The leading film f is sequentially fed from the leading film reel 3 to manufacture a triangular pyramid-shaped bag F for each of the film patterns Pa and Pb by the bag-making filling and packaging machine 1. For example, the leading film f formed in a tubular shape by the former 5 is heat-sealed by the vertical sealer 8 and fed downward by the feeding belt 9. Further, when the registration mark m is detected by the second registration mark sensor 23, the control means 25 heats and seals the top of the triangular pyramid-shaped bag F and the top of the next tubular film with the front first lateral sealer 10 in response to the detection. To do.
Then, after filling the tubular film with the contents, the bottom portion thereof and the bottom portion of the tubular film on the upper side thereof are heat-sealed and cut with the second horizontal sealer 11.

Then, when the leading film f is unwound from the leading film reel 3 and the shaft portion 3a is exposed, the terminal detecting means 14 detects the terminal portion of the leading film f and outputs this to the control means 25. The trailing film f1 is held at the initial position S.
As shown in FIG. 4, when the register mark m immediately before the end portion of the preceding film f is detected by the first registration mark sensor 21, the tip portion of the trailing film f1 in which the end portion of the preceding film f is at the initial position S. Stop at the position where it overlaps with. Moreover, when the first register mark sensor 21 detects the register mark m at the end of the leading film f, the film connector 20 is operated according to the instruction of the control means 25 to operate the rear end of the leading film f and the trailing film f1. The tip is thermocompression bonded.

In FIG. 4, the connection region of the rear end portion of the leading film f that overlaps the front end portion of the trailing film f1 is set to the film length of two bags, but if it is within the length of two bags, the film connector 20 The connection area can be set at an appropriate position.
Then, the rear end portion of the preceding film f is fed by a feeding roller 4 or the like and taken over by the connected trailing film f1, and the triangular pyramid-shaped bag F is made by the bag-making filling / packaging machine 1. At that time, since the connection and takeover of the rear end portion of the leading film f and the front end portion of the trailing film f1 are performed by the registration mark m formed every two bags, the pattern Pa in the positive direction is formed at the connecting portion. The film and the film of the pattern Pb with the top and bottom reversed are sent alternately.

As described above, according to the film connecting device 2 of the bag-making filling and packaging machine 1 according to the present embodiment, the registration mark m is provided for each of the two bags of the leading film f and the trailing film f1, and the registration mark m is used. Since both films f and f1 are connected by detecting with the first register mark sensor 21, the alternate patterns Pa and Pb can be connected in the correct order without the films having the same orientation of the patterns Pa and Pa continuing.
Moreover, since the second cash register mark sensor 23 can detect the cash register mark m for each of two films and operate the first horizontal sealer 10 and the second horizontal sealer 11 in order, the triangular pyramid-shaped bag F whose top and bottom are reversed. Can be manufactured alternately and continuously.

The film connecting device 2 of the bag-making filling and packaging machine 1 according to the present invention is not limited to the above-described embodiment, and can be appropriately changed or replaced without departing from the gist of the present invention. Hereinafter, other embodiments and modifications of the present invention will be described, but the same members and parts as those in the above-described embodiment will be described by using the same reference numerals.

Next, the film connecting device 2 will be described with reference to FIGS. 1 and 5 according to the second embodiment of the present invention.
As shown in FIGS. 5A and 5B, the length of the triangular pyramid bag F may be changed when the type of product or bag is changed. In this case, both the leading film reel 3 and the trailing film reel 18 are replaced according to the length of the triangular pyramid-shaped bag F. Further, the starting end portion of the trailing film f1 is always set to a constant initial position S.
Therefore, when the length e of the triangular pyramid-shaped bag F is changed with the distance e between the first registration mark sensor 21 and the film connector 20 being constant with reference to the tip position of the trailing film f1, the leading film f becomes the trailing film. It comes to a position shifted by a length g relative to f1 (see FIG. 5 (b)). In this state, when the film connector 20 is operated with the trailing film f1 as a reference by the first registration mark sensor 21, the connection position of the leading film f is relatively deviated by a length g, and the leading film f and the trailing film f are displaced. Since the connection position of f1 is deviated, the bag F having a deviated pattern is manufactured. Since the film connecting device 2 feeds out the set film length to make a bag, if the connection positions of the films f and f1 are deviated, the pattern of the bag is deviated, resulting in a defective product. Therefore, it is necessary to stop the film connecting device 2 and realign the patterns.

The film connecting device 2 according to the second embodiment solves the above-mentioned problems, and even when the lengths of the triangular pyramid-shaped bag F are changed by exchanging the films f and f1, the film connecting device 2 and the first register mark sensor 21 The films f and f1 can be connected without waste without changing the distance e of the film connector 20.

In the film connecting device 2 of the bag-making filling and packaging machine 1 according to the second embodiment, in addition to the configuration of the film connecting device 2 according to the first embodiment, as shown in FIGS. 1 and 3, the first registration mark sensor 21 A length measuring element 28 for measuring the mileage g of the leading film f for adjusting the mileage of the leading film f according to the change in the film length of the triangular pyramid-shaped bag F was installed on the downstream side of the leading film f. Further, a length setting input means 29 for inputting the lengths l1 and l2 of the triangular pyramid-shaped bag F into the control means 25 and determining the mileage (adjustment length) g of the preceding film f to be measured by the length measuring element 28 is installed. did.
As shown in FIG. 5B, according to the film connecting device 2 according to the second embodiment, when the lengths of the films f and f1 of the triangular pyramid bag F are changed, the film f and f1 are stationary at the initial position S. After detecting the last register mark m of the preceding film f with respect to the register mark m at the tip of the trailing film f1, the film is further run by the feeding roller 4 by the length g and measured by the length measuring element 28, and the register mark m is measured. Adjusted to match the position.

The film connecting method by the film connecting device 2 according to the second embodiment will be described with reference to FIGS. 1 and 5.
With the leading film reel 3 being fed, the tip of the trailing film f1 to be fed from the trailing film reel 18 is installed at the initial position S, which is the connection position.
Further, after the end of the preceding film reel 3 is detected by the termination detecting means 14, the registration mark m of the traveling preceding film f is detected by the first registration mark sensor 21 a predetermined number of times, and the final registration mark m is detected. At this position, the film length l2 in FIG. 5B differs from the film length l1 for one bag in FIG. 5A by a distance g, so that the preceding film f1 is different from the initial position of the trailing film f1. Is misaligned by the distance g. From this point, the traveling of the leading film f by the feeding roller 4 is measured by the stylus 28, and the leading film f is stopped when the leading film f is traveled by a distance g.

As a result, as shown by the one-point chain line in FIG. 5B, the film f for the last triangular pyramid bag F1 of the preceding film f and the film f1 for the first bag of the trailing film f1 coincide with each other. .. Moreover, when the traveling of the length g of the leading film f by the length measuring element 28 is completed, the film connector 20 operates to connect the leading film f and the trailing film f1 by thermocompression bonding of the heater. Therefore, it is possible to prevent the leading film f and the trailing film f1 from being displaced from each other and extending the leading film f unnecessarily for a long time to be thermocompression bonded.
After that, by operating the feeding roller 4, the trailing film f1 following the connecting portion is fed, the registration mark m is detected, and the bag-making filling and packaging machine 1 manufactures the triangular pyramid-shaped bag F.

As described above, according to the film connecting device 2 according to the second embodiment, even when the lengths of the leading film f and the trailing film f1 for one bag of the triangular pyramid bag F are changed, the film connecting device 20 and the film connecting device 20 are used. Since the movement of the preceding film f can be measured at a position corresponding to the initial position S of the trailing film f1 by the length measuring element 28 and the length setting input means 29 without changing the distance e of the first register mark sensor 21, the film. The connection position by the connector 20 can be adjusted, and unnecessary generation of the preceding film f can be prevented.

In the above-described embodiment, the registration mark m is formed on the side edge of every two triangular pyramid bags in the leading film f and the trailing film f1, but the bag is not limited to every two bags and is not limited to four bags. Etc., a registration mark m may be formed for every even number of bags.
Further, the film connecting device 2 of the bag-making filling and packaging machine 1 according to the present invention is designed to make a triangular pyramid bag F with the preceding film f and the trailing film f1, but the present invention is limited to the triangular pyramid bag F. It can be applied to the film connecting device 2 for making an appropriate polygonal bag without being carried out.

1 Bag making filling and packaging machine 2 Film connecting device 3 Leading film reel 4 Feeding roller 10 First horizontal sealer 11 Second horizontal sealer 14 Termination detection means 15 Optical sensor 18 Backing film reel 20 Film connector 21 First register mark sensor 23 2nd register mark sensor 25 Control means 28 Measuring element 29 Length setting input means f Leading film f1 Trailing film F Triangular pyramid bag m Register mark

Claims (2)

In a film connecting device of a bag-making filling and packaging machine in which a terminal portion of a leading film fed from a leading film reel and a starting end portion of a trailing film fed from a trailing film reel are connected.
A terminal detecting means for detecting the end of the preceding film reel, and
A first register mark sensor that detects the register marks formed for each even-numbered bag in the longitudinal direction of the leading film and the trailing film, and a first register mark sensor.
A film connector for connecting the end of the leading film and the beginning of the trailing film at the initial position,
A control means for operating the film connector by detecting the register mark with the first register mark sensor after detecting the end portion of the preceding film reel with the end detection means.
Equipped with a,
In the preceding film and the trailing film, patterns in the positive direction at the top and bottom and patterns in the direction opposite to the pattern in the positive direction at the top and bottom are alternately arranged.
The bag-making filling and packaging machine manufactures a triangular pyramid-shaped bag from the preceding film and the trailing film.
A second cash register mark sensor is installed on the upstream side of the bag-making filling and packaging machine.
The first horizontal sealer and the second horizontal sealer are installed at different angles at predetermined intervals in the film feeding direction of the bag-making filling and packaging machine.
By detecting the register mark of the leading film or the trailing film with the second register mark sensor, the first lateral sealer or the second lateral sealer is used by the control means to form a triangular pyramid bag.
A film connecting device for a bag-making filling and packaging machine, which is characterized by having a horizontal seal. A length setting input means for inputting the film length for one bag of the preceding film and the trailing film, and
A length measuring element for measuring the feeding amount of the preceding film according to the film length input to the length setting input means is provided.
The first aspect of claim 1, wherein the film connector is operated after the registration mark of the preceding film is detected by the first registration mark sensor and then the feeding amount measured by the length measuring element of the preceding film is fed out. Film connection device for bag making, filling and packaging machines.

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