JP6584709B1 - How to set the standby film - Google Patents

Abstract

To provide a standby film setting method in which a start end portion of a standby film can be drawn inside a narrow machine without causing wrinkles or curls and held or fixed at a predetermined standby position. One supply roll is automatically connected to a supply film drawn from one original roll in a supply position and a standby film drawn from another original roll in a standby position. In a film supply mechanism for continuously supplying a film while switching between a roll and other rolls, an adsorbing material is provided at the start end of the standby film, and the adsorbing material is made of a rod-shaped member including the adsorbing material. Adsorbing to a guide jig, drawing the standby film by guidance by the guide jig, and holding the start end portion at the standby position. [Selection] Figure 1

Description

  The present invention automatically connects a supply film drawn from one original roll at a supply position and a standby film drawn from another original roll at a standby position, thereby providing one original roll. The present invention relates to a method of setting a start end portion of the standby film at a standby position in a film supply mechanism that continuously supplies a film while switching between a roll and another raw fabric roll.

  Packaging films provided for filling or packaging liquids, powders, etc. continuously or intermittently with an automatic filling machine are mostly subjected to a printing process, a laminating process, a slitting process, etc. It will be applied to a filling and packaging machine as a state wound in a predetermined length (raw roll).

In the filling and packaging machine, when the packaging film of the original fabric roll is consumed and replaced, it is replaced with a new original fabric roll. However, if the filling and packaging machine is stopped during the replacement of the original fabric roll, the production efficiency decreases. It is required to replace the raw roll while continuing the packaging operation by the machine.
As the method, in the packaging apparatus of Patent Document 1, a fixed roll that is pivotally supported in a plurality of rows on the conveyance path of the packaging film fed out from the raw roll toward the filling and packaging machine, and can be moved up and down. A film for packaging is provided by providing an accumulating mechanism having take-up rolls that are supported in a plurality of rows on a bearing base, and extending the length of the transport path of the packaging film by lowering the take-up rolls. A predetermined amount is stored, and when the transfer of the packaging film from the original roll is temporarily stopped in replacing the original roll, the length of the conveyance path is shortened by raising the take-up roll, By supplying the packaging film that has been stored, the raw roll can be replaced without stopping the filling and packaging machine.

JP 2004-1870 A

  In the packaging apparatus described in Patent Document 1, when a plurality of original rolls are loaded and it is detected that one packaging film (supply film) is reduced, the packaging roll is used. The film and another packaging film (standby film) fed out from another standby roll in a standby state are overlapped and heat-sealed by being sandwiched by a pair of heat seal plates, whereby the roll roll Is configured to switch automatically.

  According to Patent Document 1, the roll can be automatically switched without stopping the packaging device. The standby film wound around the roll that is pivotally supported at the standby position is In preparation for the switching operation, it is necessary to draw it between a pair of heat seal plates and rolls in parallel with the running supply film and set it at the standby position. I went by work.

  Also, since many of the packaging films are made of thin plastic film, the sides are easy to curl, so normally the standby film is stretched by rolling it on a roll that is arranged in a zigzag pattern every 50 cm to suppress curling. is doing. For this reason, when setting the standby film, it is necessary for the operator to manually pass through the narrow space between the multiple rolls, causing wrinkles in the standby film, resulting in poor seals in the product. There was a problem that would occur.

  Therefore, the present invention has an object to propose a standby film setting method in which the start end portion of the standby film can be drawn inside a narrow machine without causing wrinkles or curls and held at a predetermined standby position. And

As a result of research and development to achieve the above object, the inventors have developed the following invention.
That is, the present invention automatically connects a supply film drawn from one original roll at a supply position and a standby film drawn from another original roll at a standby position, thereby In the film supply mechanism that continuously supplies the film while switching between the anti-roll and the other original roll,
A material to be adsorbed is provided at the start end of the standby film, the material to be adsorbed is adsorbed to a guide jig made of a rod-shaped member having the adsorbent, and the standby film is routed by guidance by the guide jig, The standby film setting method is characterized in that the starting end is held at a standby position.

In addition, about the setting method of the standby film of this invention, it becomes a more preferable solution means that it is set as the following structures further. That is,
(1) The standby film is reinforced at a starting end portion in contact with the adsorbed material,
(2) The start end of the standby film is reinforced by folding the standby film in the length direction and stacking it, or by attaching a plastic film or a label sheet different from the standby film ,
(3) The guidance jig is supported and moved by a robot having at least one arm, and the leading end of the standby film is guided to the standby position, and is held at the standby position.
(4) The guide jig has a positioning groove, and is configured such that the adsorbent is exposed in the positioning groove, and the adsorbed material of the standby film is fitted into the positioning groove. thing,
(5) The adsorbed material is a plate made of a magnetic material, and the adsorbent material is made of a magnet.
It is.

  According to the present invention, the material to be adsorbed is provided on the induction jig made of a rod-shaped member, and the adsorbent made of a magnetic material is provided at the start end of the standby film wound around the raw roll in the standby state. By pulling out the standby film from the raw roll through the guide jig and attracting it, the start end portion of the standby film can be reliably held at the standby position without causing wrinkles or the like.

  That is, in the present invention, by holding the guide jig and guiding the start end of the standby film, the standby film can be extended even in a narrow space such as between a pair of heat seal plates or between a plurality of rolls. In this state, it can be routed in the same manner, and can always be set in the same manner regardless of the experience of the worker, and the standby film can be prevented from being wrinkled.

  In particular, in the present invention, using a robot having at least one arm portion, an operator is required by supporting and moving the guide jig as previously registered in the control device (controller). It is possible to automatically set the standby film to the standby position without the above.

  In the present invention, the standby film is reinforced by, for example, folding the standby film by overlapping the standby film or attaching another member to the portion adjacent to the adsorbed material at the start end of the standby film. In addition to being easily routed through the guide jig, the stiffness (rigidity) of the start end of the standby film is increased, and wrinkles and curls can be effectively prevented.

  In the present invention, the guide jig is provided with a positioning groove, the adsorbent is exposed in the positioning groove, and the adsorbent of the standby film is fitted into the groove. While the adsorption position of the adsorbent and the adsorbent of the standby film can be easily positioned, both can be firmly adsorbed and fixed, and the standby film can be drawn in that state. There is no risk of the adsorbed material falling off, and the standby film can be reliably set at the standby position.

It is a figure which shows an example of the film supply mechanism for supplying the film for packaging to a filling packaging machine continuously from an original fabric roll. (A) is a perspective view which shows one Example of the fabric roll used for the method of one Embodiment of this invention, (b) is a perspective view which shows one Example of the guidance jig | tool used for the method of the embodiment. FIG. It is the elements on larger scale which show the starting end part of an original fabric roll. It is a figure which shows the method of adsorb | sucking a guide jig to the plate provided in the starting end part of the original fabric roll. It is a figure which shows the guide method of the standby film by a guide jig. It is a perspective view which shows an example of the robot used for the method of other one Embodiment of this invention. It is a perspective view which shows another Example of the guidance jig | tool used for the method of the said embodiment of this invention. It is a perspective view which shows another Example of the guidance jig | tool used for the method of the said embodiment of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows an example of a film supply mechanism 1 for continuously supplying a packaging film from a raw roll to the filling and packaging machine 10. First, the film supply mechanism 1 will be described.

The film supply mechanism 1 is the same as the film F and the original roll R around which the film F (hereinafter referred to as “supply film F”) that is continuously supplied to the filling and packaging machine 10 is wound. Film F ′ (hereinafter referred to as “standby film F ′”) having a structure wound and wound in a standby state, and a film that connects the preceding film F and the succeeding film F ′. The connecting mechanism 2 and a buffer unit 4 including a plurality of dancer rolls 3 are included.
In addition, the two original fabric rolls R and the original fabric rolls R ′ are rotatably supported on the original fabric shafts 6 and 6 ′ provided on the same substrate 5 so as to be detachable and replaceable. The original fabric shafts 6 and 6 'have, for example, an air shaft structure, and are configured so that the core tubes of the original fabric rolls R and R' can be appropriately fixed and released by expanding and contracting the shaft by supplying and discharging air pressure. ing.

  The supply film F is fed out from the raw roll R and continuously supplied to the filling and packaging machine 10 through the plurality of fixed rolls 8 and the dancer roll 3. On the other hand, the standby film F 'is pulled out from the original roll R', and the leading end thereof is held by a locking portion 7 made of a clip or the like as shown in the drawing. In addition, the latching | locking part 7 may be a thing of a structure which only latches the start end part of the standby film F '.

  The film joining mechanism 2 joins and connects the rear end portion of the supply film F and the front end portion of the standby film F ′, and automatically supplies the supply film F supplied to the filling and packaging machine 10 to the standby film F ′. Any method may be used as long as it can be switched to (raw fabric roll R ′). For example, the supply film F and the standby film F ′ that are parallel to each other are sandwiched and bonded by a pair of heat seal bars 11. The supply film F and the standby film F ′ are respectively positioned in the vicinity of the connection portion (the supply film F is in the vicinity of the raw roll R side, and the standby film F ′ is in the vicinity of the locking portion 7 side). In FIG. 1, the original fabric roll R can be automatically switched to the original fabric roll R ′ by cutting the entire width with a cutting blade (not shown).

  The buffer unit 4 includes a plurality of fixed rolls 8 and a dancer roll 3, and the dancer roll 3 functions as a buffer for the supply film F by moving up and down. Even if the feeding of the supply film F from the original fabric roll R is stopped by the dancer roll 3 in the film joining mechanism 2 in order to connect the supply film F and the standby film F ′, the dancer roll 3 has a vertical gap. The supply film F and the standby film F ′ can be connected without stopping the operation of the filling and packaging machine 10 by continuously supplying the supply film F that has been narrowed and stored to the filling and packaging machine 10. .

  In the film joining mechanism 2, the connection between the supply film F and the standby film F ′ is completed, and the standby film F ′ is continuously fed out from the raw roll R ′ toward the filling and packaging machine 10. The base material 5 that pivotally supports the anti-roll R and the original roll R ′ is rotated 180 ° counterclockwise, and the vertical position of the original roll R and the original roll R ′ is switched. The roll R is positioned at the standby position.

  The present embodiment relates to a setting method in which the standby film F ′ is drawn from the original roll R ′ and held in the locking portion 7 which is the standby position in the film supply mechanism 1, and the method will be described below. To do.

  2 (a) and 2 (b) are perspective views of an embodiment of the original roll R 'and a guide jig used for routing the original roll R' to the locking portion 7 which is the standby position. Show.

  The guide jig 20 is made of a rod-shaped member, and preferably has a length equal to or greater than the entire width of the standby film F ′, and the thickness can be appropriately set as long as it can pass through a narrow space inside the film supply mechanism 1. It is preferable that the thickness is 0.5 mm or more from the viewpoint of strength required for induction. The guide jig 20 can be formed of a metal material such as aluminum, stainless steel, titanium, or brass, or a resin material such as nylon, acrylic, polycarbonate, fluorine, PPS (polyphenylene sulfide), or PEEK (polyether ether ketone). However, especially when it is formed of a resin material, it is lightweight and can be easily moved by being held by an operator. In addition, a plurality of adsorbents 23 are preferably provided at equal intervals on one side surface of the guide jig 20.

  As shown in FIG. 2A, the raw roll R ′ is provided with a plate-like adsorbent 21 along the start end of the standby film F ′. The material to be adsorbed 21 is provided at the start end of the standby film F ′, preferably over the entire width of the standby film F ′. The adsorbent 21 may have any shape, but preferably has a width of 5 to 50 mm, more preferably 10 to 30 mm, and a thickness of 0.1 to 3.0 mm, more preferably 0. 3 to 1.0 mm, for example, fixed to the standby film F ′ with a double-sided tape or an adhesive.

  The adsorbent 23 of the guide jig 20 and the adsorbed material 21 of the standby film F ′ may be in any combination as long as they can adsorb each other. For example, when a magnet is used as the adsorbent 23 Can be easily adsorbed by using a magnetic material as the adsorbed material 21. In addition, the adsorbent 23 and the adsorbed material 21 may be a hook-and-loop fastener, a double-sided tape, air suction, a thing using a suction cup or the like. In the following, a case where the adsorbent 23 is a magnet 23 'and the adsorbed material 21 is a plate 21' made of a magnetic material such as stainless steel or iron will be described as an example.

In addition, as shown to Fig.2 (a), it is preferable to provide the reinforcement part 22 in the part adjacent to plate 21 'of standby film F'. As shown in the drawing, the reinforcing portion 22 may be provided partially in addition to the full width of the standby film F ′. The reinforcing portion 22 gives stiffness (rigidity) to the start end portion of the standby film F ′, and sucks the start end portion (plate 21 ′) of the standby film F ′ by the guide jig 20 as will be described later. When the standby film F ′ is routed through the guide jig 20 by force, the start end of the standby film F ′ is prevented from being folded back, and it is easy to route, and curling and wrinkles are prevented from being generated. Further, when the start end portion of the standby film F ′ is held by the locking portion 7, it has a role of preventing the curling, wrinkling and the like from occurring.
The reinforcing portion 22 has a length d of 10 to 1000 mm, preferably 100 to 500 mm, more preferably about 200 to 300 mm so that a narrow space in the film supply mechanism 1 can be flexibly routed.

  For example, as shown in FIG. 2A, the reinforcing portion 22 is formed by folding the standby film F ′ in the length direction to make it thicker, or by attaching another plastic film, or attaching a commercially available label sheet. It can be formed by various methods. The reinforcing portion 22 is a portion that is separated and discarded when the supply film F and the standby film F ′ are connected in the film connecting mechanism 2, and thus adversely affects the product manufactured by the filling and packaging machine 10. There is no risk.

  An embodiment of the method of the present invention for setting the standby film F ′ to the standby position using the guide jig 20 and the raw roll R ′ will be described.

  As shown in FIG. 3, the standby film F ′ of the original roll R ′ that is pivotally supported at the standby position has a plate 21 ′ on one surface of the starting end, and the other surface is, for example, a double-sided tape or glue. In addition, it is preferable to adhere to the raw roll R ′ with an adhesive 27 such as a magnet. Note that the adhesive 27 has an adhesive strength on the side of the original roll R ′ so that it does not remain on the original roll R ′ when the starting end of the standby film F ′ is picked up by the guide jig 20 as will be described later. Is preferably weaker than the adhesive strength on the standby film F ′ side.

  First, an operator grips and supports one end of the guide jig 20 in the longitudinal direction (the side not having the magnet 23 '), and the original roll R' set at the standby position as shown in FIG. The guide jig 20 is brought close to the plate 21 ′ provided at the start end of the standby film F ′, and the plate 21 ′ and the magnet 23 ′ of the guide jig 20 are attracted.

In this state, the guide jig 20 is moved, and the other surface of the standby film F ′ attached by the adhesive 27 is peeled off from the raw roll R ′ to pick up the standby film F ′.
Next, while supporting the guide jig 20, the standby film F ′ is guided between the film joining mechanisms 2 including a plurality of rolls and a pair of heat seal plates as shown by arrows in FIG. It is drawn to 7 position, for example, the plate 21 ′ is locked to the hook-shaped locking portion 7, and at the same time the guide jig 20 (magnet 23 ′) is rotated to separate it from the plate 21 ′. The portion is held by the locking portion 7.

  According to this method, the standby film F ′ is drawn in a state where the standby film F ′ is stretched in the width direction by the guide jig 20, and the standby film F ′ is wrinkled when held by the locking portion 7. Occurrence can be suppressed, and by using the guide jig 20, the standby film F ′ can always be set in the same manner regardless of the skill of the operator.

When the standby film F ′ is routed, as shown in FIG. 6 as another embodiment of the method of the present invention, a robot 24 may be used. In this case, automatic operation is not required. Can be set to standby.
The robot 24 of the present embodiment includes at least one arm portion 25, and a hand portion 26 is provided at the tip of the arm portion 25. Both the robot 24 and the hand unit 26 can use general-purpose ones.

  The robot 24 shown in FIG. 6 has an articulated arm portion 25. However, the present invention is not limited to this, and the arm portion 25 can be rotated or bent and extended via the joint portion. Any form may be used. Further, the robot 24 has a control means including a CPU (Central Processing Unit), a memory, and the like, and the control means is programmed according to, for example, the type of the standby film F ′ and the routing route in the film supply mechanism 1. Is stored, the articulated arm unit 25 and the hand unit 26 can perform a predetermined operation.

  As the hand portion 26, for example, one having a simple structure such as a parallel opening / closing gripper or an air gripper is used in order to grip and support one end portion in the longitudinal direction of the guide jig 20 made of a rod-shaped member as described later. it can. Further, the guide jig 20 may be provided directly at the position of the hand part 26 at the tip of the arm part 25 instead of the hand part 26.

  For example, when the robot 24 (control device) receives a setting command for the raw roll R ′ at the standby position from the control unit of the filling and packaging machine 10, the robot 24 that has received the setting command operates the arm unit 25. The pair of grippers of the hand portion 26 supports one end portion of the guide jig 20 in the longitudinal direction, and picks up the guide jig 20.

  Next, the arm unit 25 is moved along a path previously stored in the control device of the robot 24, and is provided at the start end portion of the standby film F ′ of the raw roll R ′ set at the standby position in the same manner as described above. The guide jig 20 is brought close to the plate 21 ′, and the plate 21 ′ and the magnet 23 ′ of the guide jig 20 are attracted.

  Thereafter, with the standby film F ′ adsorbed to the guide jig 20, the standby film F ′ is routed between the film connecting mechanisms 2 including a plurality of rolls and a pair of heat seal plates, for example, a hook. The guide jig 20 (magnet 23 ') is rotated at the same time that the plate 21' is locked to the stopper 7, and the guide jig 20 is pulled away from the plate 21 ', and the standby end of the standby film F' is locked. Held in part 7. By using the robot 24 in this manner, the standby film F ′ can be automatically set without requiring an operator.

FIG. 7 shows another embodiment of the guide jig 20.
The guide jig 20 has a plurality of magnets 23 ′ as adsorbents 23 on one side surface, and protrusions 29 such as pins are provided on both sides of the plurality of magnets 23 ′. On the other hand, the standby film F ′ is provided with a plate 21 ′ as a material to be adsorbed 21 at the start end, and passes through the plate 21 ′ and the standby film F ′ at both ends of the plate 21 ′ as shown in FIG. An opening 30 is provided in the upper surface. In FIG. 7, the case where the width of the plate 21 ′ is the same as the film width of the standby film F ′ is shown as an example. However, when the plate 21 ′ longer than the film width of the standby film F ′ is used. The opening 30 may be provided so as to penetrate only the plate 21 ′.

  According to the guide jig 20 and the plate 21 ′, when the standby film F ′ is routed, the projections 29 of the guide jig 20 are fitted into the openings 30 of the plate 21 ′, so that the plate 21 ′ and the magnet 23 ′ can be connected. The suction position can be specified, and the standby film F ′ is firmly fixed to the guide jig 20 and can be securely held by the engaging portion 7 without falling off during the drawing.

  In addition, it is preferable that the protrusion 29 provided on the guide jig 20 has a detachable structure. By moving the protrusion 29 in accordance with the position of the opening 30 provided in the plate 21 ′, the standby film F ′. The common guide jig 20 can be used regardless of the film width and the width of the plate 21 '.

FIG. 8 shows still another embodiment of the guide jig 20.
The guide jig 20 includes a positioning groove 28 on one side surface, and a plurality of magnets 23 ′ are exposed in the positioning groove 28. The positioning groove 28 is for fitting the plate 21 ′ of the standby film F ′ on the inner side to specify the adsorption position between the plate 21 ′ and the magnet 23 ′. 'Is firmly fixed to the guide jig 20 and can be securely held and fixed to the engaging portion 7 without falling off during the routing.

  The positioning groove 28 may have any shape as long as it can fit the plate 21 'of the standby film F', but it is preferably formed in a large size, for example, standby for setting. Attaching / detaching the magnet 23 ′ in accordance with the film width of the film F ′, or providing a slide mechanism in the positioning groove 28, and adjusting the size of the groove 28 according to the film width of the standby film F ′. Etc. so that it can be easily adjusted in accordance with various standby films F ′.

  The standby film setting method of the present invention includes various filling and packaging machines and bag making machines for continuously filling and packaging liquid, viscous, powdery and other packages in a packaging bag made of a packaging film. It can be widely used in slitter devices, printing machines, laminating machines, winders and the like.

DESCRIPTION OF SYMBOLS 1 Film supply mechanism 2 Film connection mechanism 3 Dancer roll 4 Buffer part 5 Base material 6, 6 'Original shaft 7 Locking part 8 Fixed roll 10 Filling packaging machine 11 Heat seal bar 20 Guiding jig 21 Adsorbed material 21' Plate 22 Reinforcing part 23 Adsorbent 23 'Magnet 24 Robot 25 Arm part 26 Hand part 27 Adhesive 28 Positioning groove 29 Protrusion 30 Opening R, R' Raw roll F Supply film F 'Standby film

Claims (6)

By automatically connecting the supply film drawn from one original roll at the supply position and the standby film drawn from the other original roll at the standby position, one original roll and another original roll are connected. In the film supply mechanism that continuously supplies the film while switching between the anti-roll,
A material to be adsorbed is provided at the start end of the standby film, the material to be adsorbed is adsorbed to a guide jig made of a rod-shaped member having the adsorbent, and the standby film is routed by guidance by the guide jig, A standby film setting method, characterized in that the start end is held at a standby position.   The standby film setting method according to claim 1, wherein the standby film is reinforced at the start end portion in contact with the adsorbed material. The start end portion of the standby film is reinforced by folding the standby film in a length direction and stacking the standby film or attaching a plastic film or a label sheet different from the standby film. 2. Setting method of standby film according to 2   The guide jig is supported and moved by a robot having at least one arm, and the leading end of the standby film is guided to the standby position and held at the standby position. 4. The standby film setting method according to any one of 3 above.   The guide jig includes a positioning groove, the adsorbing material is exposed in the positioning groove, and the adsorbing material of the standby film is fitted into the positioning groove. The standby film setting method according to any one of claims 1 to 4.   The standby film setting method according to claim 1, wherein the attracted material is a plate made of a magnetic material, and the attracted material is made of a magnet.

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