JP2001180610A - Film set mechanism in packaging apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a film set mechanism in a novel packaging apparatus to joint a film in an extremely easy manner by facilitating the drawing, the guide and the setting of a starting end of the film in newly setting the film, solving problems with conventional packaging apparatuses in joining film ends with each other in replacing the film when the film is broken or the like, and providing a flat working surface to function as a working table in joining the broken films (which can be generally functioned as a film guide surface). SOLUTION: In the film set mechanism of the packaging apparatus, a horizontal guide part 10A to guide the film 1 to be drawn from a raw roll 1A in a substantially horizontal direction is provided in the vicinity of the raw roll 1A in the film guide apparatus of a pillow type packaging apparatus A, and the flat working surface 8 which can be used as the horizontal guide part 10A or as a working table to achieve the film joining to joint a terminating end 1B of the film with a starting end 1C of the film to be newly set below the horizontal guide part 10A is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to, for example, when a new film is set, a film drawn from a material roll is easily guided and guided. The present invention relates to a film setting mechanism in a packaging device capable of easily performing an operation of connecting an end and a film starting end of a newly set raw roll.

[0002]

2. Description of the Related Art While a film drawn from a material roll is formed into a cylindrical bag by a former, the opening side of the cylindrical film is held open, and a material to be packaged is placed in the film. The film that has been supplied and supplied with the article to be packaged from the supply section of the article to be packaged is transported by a transport device, and is provided on a film unloading side of the former by the transport device, and a center sealing device is provided at an opening side of the tubular film And sealing the cylindrical film in a direction orthogonal to the film transport direction by an end seal device, and sequentially cutting the packaging bags containing the articles to be formed formed by these sealing devices. In the packaging device provided with the cutting device 7,
For example, when a new film is to be set, the material roll is rotatably set in the roll holding unit, and while rotating the material roll with one hand, pull out the film starting end with the other hand, and guide the film guide device. This film setting work is not easy because there is no horizontal guide.

Further, for example, when the film of the material roll runs out and the film runs out, even if the transporting device is stopped immediately, the inertia due to pull-out transport and the film tensioning device for applying a predetermined tension to the film are generally applied to the film guide device. Due to the provision of the device, the end of the film is conveyed considerably through the guide of the film guide device.

[0004] Therefore, the film is manually pulled out from the newly set raw material roll to be joined to the end of the film, and the leading end of the film is routed to the end of the cut film through the guide portion that has passed,
The film ends are polymerized and fixed to connect the films.

[0005] However, as described above, since the film end is conveyed considerably even if the conveying device is immediately stopped, the film setting operation becomes troublesome in that a film set for drawing the film from a new material roll is required. In addition, a film joining operation for joining the end of the cut film and the beginning of the new film must be performed in the middle of the guide section.

[0006] That is, there is a work space at the lower part of the packaging device, at a position where the film is conveyed at an angle, at a place where the film is folded back, and it is difficult to reach, and a splicing operation can be easily performed. In some cases, the film splicing work was very troublesome.

According to the present invention, when a new film is to be set, it is very easy to set the leading end of the film at the start of the film. In order to solve the above-mentioned problems of the packaging apparatus of (1), it is necessary to provide a flat work surface that functions as this work table when joining films (although it is possible to normally function as a film guide surface). Accordingly, it is an object of the present invention to provide a film setting mechanism in an epoch-making packaging apparatus which can extremely easily perform a film connecting operation.

[0008]

The gist of the present invention will be described with reference to the accompanying drawings.

A roll holding portion 21 rotatably supporting the material roll 1A, a guide portion 10 for guiding the film 1 drawn from the material roll 1A, and a guide portion 10 near the roll holding portion 21 of the guide portion 10. A horizontal guide portion 10A is provided for guiding the film 1 substantially horizontally, and the film 1 pulled out through the guide portion 10 is folded back and guided in a two-fold state to form the film 1 into a cylindrical shape. A former 12 forming a supply unit 11 for holding the opening side of the film 1 and supplying the package 3 into the film 1, and transporting the film 1 supplied with the package 3 from the supply unit 11. And a center sealing device 2 which is provided on the film unloading side of the former 12 by the conveying device 4 and seals and closes the opening side of the tubular film 1.
And an end sealing device 6 for sealing the tubular film in a direction perpendicular to the film transport direction, and the cutting device 7 for sequentially cutting the package 3 containing the package 3 formed by the sealing devices 2.6. And a film setting mechanism in the packaging device.

Further, a film tension device 9 for applying a predetermined tension to the guide portion 10 when the film is carried out.
2. The film setting mechanism according to claim 1, wherein the horizontal guide portion (10A) is provided on the carry-in side of the film tension device (9) and near the raw material roll (1A). is there.

A flat work surface 8 which can be used as the horizontal guide portion 10A or below the horizontal guide portion 10A as a work surface for performing a film connecting operation for connecting the film end 1B and the newly set film start 1C. The film setting mechanism in the packaging device according to any one of claims 1 and 2, wherein

A guide surface for supporting the film 1 drawn from the material roll 1A is provided, and a film end 1B and a newly set film start 1C are set.
The film in the packaging device according to any one of claims 1 to 3, wherein the horizontal guide portion 10A is configured by providing the flat work surface 8 serving as a work surface for performing a film connection work for connecting the film and the film. It relates to a setting mechanism.

Further, a flat plate member 8A for supporting the film 1 drawn from the material roll 1A is provided, and the upper surface thereof is the flat work surface 8 serving as the horizontal guide portion 10A. According to a fourth aspect of the present invention, there is provided a packaging device according to the first aspect.

Further, the flat working surface 8 is set to a size having a width substantially equal to or larger than the width of the film 1. It relates to a film setting mechanism in the packaging device described in the above.

Further, the flat work surface 8 is connected to the former
The film setting mechanism according to any one of claims 3 to 6, wherein the film setting mechanism is disposed on an upper side or a lower side with respect to the film setting mechanism.

Further, there is provided a film breakage detecting device 13 for detecting the presence or absence of the film 1 breakage from the material roll 1A. When the film breakage detecting device 13 detects the film breakage, the transport device 4 is automatically stopped. The film setting mechanism according to any one of claims 1 to 7, wherein the film setting mechanism is configured to operate.

Further, the apparatus is characterized in that the film depletion detecting device (13) detects the operation of the film (1) guided and conveyed on the flat work surface (8).
It relates to a film setting mechanism in the packaging device described in the above.

Further, the notch concave portion 14 reaching the side end of the film 1 supported on the flat work surface 8 is directed toward the center of the flat work surface 8 at the side end of the flat work surface 8. 10. A film setting mechanism in a packaging apparatus according to claim 9, wherein said film setting mechanism is provided so as to be able to hold and fix said film 1 on said flat work surface 8 by means of holding means 15 through said notched recess 14. It is related.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention (how to implement the invention) will be briefly described with reference to the drawings, showing the operational effects thereof.

The film 1 drawn from the material roll 1A is first guided substantially horizontally by a horizontal guide portion 10A, and then, for example, a tension roll (movable roll 9A) of a film tensioning device 9 or a guide roll 10 for folding back and reversing.
When the film 1 is newly set, for example, the film 1 drawn from the material roll 1A may be once supported on the horizontal guide portion 10A. Since the film 1 can be pulled out onto the horizontal guide portion 10A excessively and the film start end 1C can be set around the guide roll 10B one after another, the film can be set very easily. That is, since there is no horizontal guide as in the prior art, the original roll 1A is slowly rotated with the other hand while holding the film leading end 1C by hand, and the guide 10 is held.
Since the film 1 can be first pulled out at a stroke by being supported by the horizontal guide portion 10A provided near the raw roll 1A without having to draw the film 1A, the film leading end 1C can be drawn. The film can be set very easily.

According to the third aspect of the invention, when the film 1 of the material roll 1A runs out and the film is cut off, the film end 1B is arranged on the flat work surface 8 and the newly set material is set. The film starting end 1C drawn from the anti-roll 1A can also be disposed on the flat work surface 8 so as to connect the film ends together on the flat work surface 8. That is, the film joining operation can be performed using the flat work surface 8 as a work surface.

Accordingly, the film joining operation can be performed using the flat work surface 8 as a work table surface for the film joining operation. The film connecting operation can be performed on the flat work surface 8 that is always easy to work without performing the operation, and the film setting mechanism in the packaging device is very innovative.

For example, in order to facilitate the film joining operation on the flat work surface 8, the horizontal guide portion 10 is designed so that the flat work surface 8 normally functions as a film guide surface.
A to facilitate setting of the film end on the flat work surface 8 immediately after the film breaks, to secure a sufficiently wide horizontal width of the flat work surface 8, and to set the transport device 4 when the film breaks. The flat work surface 8 is arranged close to the film tensioning device 9 so that the flat work surface 8 is not conveyed through the guide portion 10 beyond the flat work surface 8 due to the film tension even when the film work is stopped, or the flat work surface 8 is set at a height that facilitates the work. It may be arranged.

Therefore, if these designs are made, the film end 1B, which has been cut, can be easily placed on the flat work surface 8, and the film start end 1C drawn from the new material roll 1A can be easily placed on the flat work surface 8. On top of this, the film joining operation can be performed very efficiently and easily on the sufficiently wide flat work surface 8.

[0025]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific embodiments of the present invention will be described with reference to the drawings.

A web roll 1A having the film 1 wound continuously in a roll form is rotatably supported by a roll holding section 21, and a guide section 10 for guiding the film 1 drawn from the web roll 1A is provided. A film tensioning device 9 for applying a predetermined tension to the film 1,
The film 1 pulled out through the guide portion 10 is folded back and guided in a two-fold state, and the opening side of the tubular film 1 (the lower side in this embodiment) is held while the film 1 is formed into a tubular shape. A former 12 forming a supply unit 11 for supplying the packaged object 3 into the film 1;
The film 1 to which the packaged object 3 is fed and supplied by the supply / conveyance device 18 is held in one of the horizontal directions by a holding roller 4A, a loading-side conveyor device 19 provided at the cutting device loading side, and a delivery-side conveyor device 20 provided at the cutting device delivery side. A transport device 4 for intermittently transporting the cylindrical film 1 to the side (unloading side), a center sealing device 2 provided on the film unloading side of the former 12 with the transport device 4 and closing the opening side of the tubular film 1 with a center seal. An end seal device 6 for sealing the tubular film 1 in two directions in a direction perpendicular to the film transport direction, and a space between the two seals of the package 3 containing packaging 3 formed by each of the sealing devices 2.6. Is cut off when the intermittent conveyance is stopped, and the cutting device 7 that cuts the packing bag 5 containing the articles 3 sequentially one by one. In this embodiment, the guide portion 10 serves as a horizontal guide surface for supporting the film 1 drawn from the material roll 1A, and connects the film end 1B to the newly set film start 1C. A flat work surface 8 serving as a horizontal work surface for performing a joining operation is provided as a horizontal guide portion 10A.

In this embodiment, a flat plate (horizontal table plate) 8A for supporting the film 1 drawn from the raw material roll 1A is erected on the body, and the upper surface thereof is flattened to serve as the horizontal guide portion 10A. Surface 8.

In this embodiment, the horizontal guide portion 10A is provided by providing the flat work surface 8, but the horizontal guide portion 10A may be provided by simply providing a pair of guide rolls in the horizontal direction. Alternatively, a horizontal guide portion 10A may be provided opposite to a guide rail having a length in the film transport direction, and a flat work surface 8 which is not normally a film guide is provided below the horizontal guide portion 10A. Alternatively, it may be configured such that, when the film is cut and the joining operation is performed, it can be set under the horizontal guide portion 10A or between the guide rails.

Further, the flat work surface 8 of the present embodiment is set to a size having a width slightly larger than the width of the film 1, to secure a sufficient work space, and to completely cover the left and right edges of the film 1. Since it is placed on the flat work surface 8, the film guide function is improved, and the film joining operation can be performed more efficiently.

The flat work surface 8 of this embodiment is substantially horizontally at a position close to the film drawing side of the material roll 1A and close to the film drawing side of the film tensioning device 9. It is arranged. That is,
A horizontal guide portion 10A is provided between the setting position of the material roll 1A and the film tension device 9 to horizontally support the film 1.

The film tension device 9 of this embodiment is
A movable roll 9A for drawing the film 1 around the pair of guide rolls 9B is provided movably in the vertical direction, and a constant tension is applied to the film 1 by applying a load to the movable roll 9A. On the film loading side of the tension device 9, a flat work surface 8 serving as a horizontal guide portion 10A is provided. Therefore, a new film 1
For example, when the film 1 is extraly pulled out from the raw material roll 1A to the horizontal guide portion 10A, the film start end 1C can be set around the predetermined guide portion 10 one after another. Film setting can be performed easily. That is, since there is no horizontal guide portion as in the related art, it is not necessary to slowly rotate the material roll 1A with the other hand while pulling the guide portion 10 while holding the film start end 1C by hand. Since the film 1 is first pulled out to a certain extent so as to be supported by the horizontal guide portion 10A provided near the material roll 1A, the film leading end 1C can be drawn around, so that the film setting can be performed very easily. .

When a film break occurs, even if the transport device 4 stops immediately, the movable roll 9A
In some cases, the film end 1B may be conveyed from the raw roll set position due to the film tension caused by the film tension. However, since the flat work surface 8 is close to the roll set position, this over-conveyance stops on the flat work surface 8 and the joining operation is continued. It is also possible to design so that it can be performed.

Further, since the flat work surface 8 is close to the film tensioning device 9 and is not at a position where the guide section 10 is inclined and conveyed, even if the film end 1B falls off the flat work surface 8 due to the tension, Can be easily lifted and placed on the flat work surface 8. In addition, the film leading end 1C drawn out from the newly set material roll 1A can also be placed on the adjacent flat work surface 8 without drawing the guide portion 10, and the film connecting operation can be performed very quickly. In addition, the flat work surface 8 of the present embodiment is provided above the former 12, and is arranged at a height suitable for performing the film connecting work with an operator standing.

In the packaging apparatus according to the present embodiment, the former 12, the transporting apparatus 4 (nipping roller 4A), the center sealing apparatus 2, the end sealing apparatus 6, the cutting apparatus 7, and other devices such as a deaeration apparatus and a press-fitting apparatus are provided. A film guide device for guiding the film 1 from the raw material roll 1A to the former 12 is also disposed in the same direction as the former 12 in the horizontal direction.
On the upper side of the roll 12, a raw material roll 1A, a horizontal guide 10A (flat work surface 8), a film tensioning device 9, and other guides 10
The film 1 is reversely guided by a reversing guide roll 10B and guided to the former 12, so that the raw material roll is provided. 1A and the flat work surface 8 can be arranged at an appropriate height at which a worker can connect the flat work surface while standing, and even if the flat work surface 8 is provided with a sufficient length to facilitate the work, the packaging device can be provided. The whole A has a two-stage configuration, so that it is compact and does not take up space.

Further, a film breakage detecting device 13 for detecting whether or not the film 1 is conveyed from the raw material roll 1A is provided.
When the film breakage detecting device 13 detects the film breakage, the transport device 4 is automatically stopped immediately.

Therefore, the construction is such that the transport of the film 1 is automatically stopped immediately so that the end 1B of the film does not excessively transport beyond the flat work surface 8 when the film breaks.

Specifically, the film out detecting device 13 is
Although the detection operation is performed on the film 1 guided and conveyed on the flat work surface 8, in this embodiment, the opening 16 is provided at the position where the film 1 on the flat work surface 8 is guided and conveyed.
Is formed, and a detector 17 is provided to contact the film 1 from below the flat work surface 8 (flat plate 8A) through the opening 16, and the film 1 is in contact with the detector 17 It is determined that the film 1 has been fed normally, and if the film 1 is removed from the film 1, the film 1 on the detection unit 17 is lost, the tension is lost, or the core of the raw material roll 1A and the end of the film are taped. Even when the film 1 slightly rises above the flat work surface 8, the detecting unit 17 is configured to detect the film break by projecting upward through the opening 16 by the urging force. Therefore, it can be said that even if the film 1 passes through the opening 16, the film break can be detected quickly. Also,
A non-contact structure that detects the presence or absence of the film 1 through the opening 16 by an optical sensor or the like may be used.

Therefore, by utilizing the flat work surface 8 (horizontal table plate 8A), the film breakage detecting device 13 can be used.
Can also be easily provided. The opening 16 provided with the film break detecting device 13 is provided on the base end side of the flat work surface 8 in order to detect the film break as soon as possible.

In this embodiment, a notch recess 14 having a depth reaching the left and right ends of the film 1 supported on the flat work surface 8 is formed on the left and right ends of the flat work surface 8. The film 1 is recessed toward the center of the surface 8, and the film 1 can be clamped and fixed on the flat work surface 8 by a clipping device 15 such as a clip through the cutout recess 14.

Therefore, when the film joining operation is performed, as shown in FIG.
At 15, the flat work surface 8 (horizontal table plate 8 </ b> A) is sandwiched and fixed, and in this temporarily fixed state, as shown in FIG.
The film ends are slightly overlapped and fastened to each other, and the work is completed quickly by removing the clamp 15.

[0041]

Since the present invention is configured as described above, when a new film is set, for example, an extra film is temporarily drawn from the raw material roll to the horizontal guide portion.
This film leading end can be successively routed and set to a predetermined guide portion, thus providing a film setting mechanism in an epoch-making packaging device in which film setting can be performed very easily.

According to the second aspect of the present invention, a film setting mechanism in a packaging device in which the above-described functions and effects are more reliably exhibited.

According to the third aspect of the present invention, when the work for connecting the film edges is performed when replacing the film, for example, when the film is cut, the flat work surface functioning as the work table surface is provided, so that the film connecting work can be performed very easily. Film setting mechanism in an innovative packaging device that can perform

That is, the film connecting work can be performed on a flat work surface which is always easy to work, without performing the film connecting work at a position where the film is conveyed in an inclined manner or at a position where there is not enough work space as in the related art. It is a film setting mechanism in an epoch-making packaging device that can work efficiently and speedily and can set a film satisfactorily.

In the fourth aspect of the present invention, since the work surface is a flat work surface which normally functions as a film guide surface, it is easy to arrange the cut film end on the flat work surface and to set a new one. The end of the film drawn from the material roll can also be easily set on this flat work surface near the material roll, so that a film setting mechanism in a packaging device in which the film can be connected more quickly.

According to the fifth aspect of the invention, a flat work surface (flat work surface) can be easily realized, and in the sixth aspect of the invention, a sufficient work space is secured and It is a film setting mechanism in a packaging device that can easily perform the connecting operation and can perform the operation efficiently.

In the invention according to the seventh aspect, the packaging device can be compactly designed by forming the entire packaging device into a two-stage structure while having a flat work surface for securing a sufficient work space. It becomes a film setting mechanism in a packaging device that excels in practical use without taking up space.

According to the eighth aspect of the invention, it is possible to automatically prevent the film from being excessively conveyed when the film is cut, and according to the ninth aspect of the invention, a simple construction is achieved by utilizing a flat work surface. Thus, a film breakage detecting device can be easily provided, and a film setting mechanism in a packaging device which is more practical can be provided.

According to the tenth aspect of the present invention,
Even if the width of the flat work surface is wider than the film width to facilitate the work, one or both films can be clamped and fixed on the flat work surface with the clipping tool through the notch recess, and the film can be further connected. It becomes a film setting mechanism in an epoch-making packaging device that can perform work quickly and efficiently.

[Brief description of the drawings]

FIG. 1 is a schematic configuration explanatory side view of the present embodiment.

FIG. 2 is a schematic configuration explanatory perspective view of the present embodiment.

FIG. 3 is a schematic configuration explanatory side view of a main part of the present embodiment in a state where a film is cut.

FIG. 4 is a schematic structural explanatory perspective view of a main part of the embodiment in a state where a film end is clamped and fixed on a flat work surface by a clamping tool after the film is cut.

FIG. 5 is a schematic configuration explanatory perspective view of a main part in a state where a film end after the film is cut and a film end drawn from a newly set raw material roll are polymerized and fixed and a film joining operation is completed. It is.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Film 1A Raw material roll 1B Film end 1C Film starting end 2 Center sealing device 3 Packaged object 4 Conveying device 5 Packaging bag 6 End seal device 7 Cutting device 8 Flat work surface 8A Flat plate (horizontal table board) 9 Film tension device 10 Guide unit 10A Horizontal guide unit 11 Supply unit 12 Former 13 Film break detection device 14 Notch recess 15 Clamp 21 Roll holding unit A Packaging device

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3E051 AA03 AB05 BA01 CA08 CB06 DA08 EA03 EB05 FB02 FD02 HA02 HA07 JA02 KA03 KA08 KB01 LA04 LA10 LB03 3F064 AA03 BB01 BB17 BB29 DA01

Claims (10)

[Claims] 1. A roll holding section for rotatably supporting a material roll, a guide for guiding a film drawn from the material roll, and a film provided near the roll holding portion of the guide. A horizontal guide portion for guiding substantially horizontally, and a film drawn through the guide portion is folded back and guided in a two-fold state to form a tubular bag while holding the opening side of the tubular film to be wrapped. A former that forms a supply unit for supplying articles into the film, the transport device that transports the film that has been supplied with the articles to be packaged from the supply unit, and a former that is provided on the film unloading side of the former with the transport device. A center sealing device for sealing and closing the opening side of the cylindrical film, and an end seal for sealing the cylindrical film in a direction perpendicular to the film transport direction. A film setting mechanism in a packaging device, comprising: a packaging device; and a cutting device configured to sequentially cut a package-containing bag formed by the sealing devices. 2. A film tension device for applying a predetermined tension to the guide portion when the film is carried out,
2. The film setting mechanism according to claim 1, wherein the horizontal guide portion is provided on the carry-in side of the film tension device and near the material roll. 3. A flat work surface which can be used as the horizontal guide portion or below the horizontal guide portion as a work surface for performing a film connecting operation for connecting a film end and a newly set film start end. A film setting mechanism in the packaging device according to any one of claims 1 and 2, 4. The flat work surface, which serves as a guide surface for supporting the film pulled out from the web roll and a work surface for performing a film connecting operation for connecting a film end and a newly set film start end, The film setting mechanism in the packaging device according to claim 1, wherein the horizontal guide portion is provided. 5. The flat work surface serving as the horizontal guide portion, wherein a flat plate material for supporting the film drawn from the material roll is provided, and the upper surface thereof is used as the flat work surface. Film setting mechanism in packaging equipment. 6. The flat working surface according to claim 3, wherein the flat working surface is set to have a width substantially equal to or greater than the width of the film.
13. A film setting mechanism in the packaging device according to the above item. 7. The film setting mechanism according to claim 3, wherein the flat work surface is disposed above or below the former. 8. A device for detecting whether or not the film has run out of the material roll, and configured to automatically stop the transport device when the film-break detecting device detects that the film has run out. The film setting mechanism in the packaging device according to any one of claims 1 to 7, wherein 9. A film setting mechanism in a packaging apparatus according to claim 8, wherein said film break detecting device is configured to detect a film guided and conveyed on said flat work surface. 10. A notch recess reaching a side end of the film supported on the flat work surface is formed at a side end of the flat work surface toward a center of the flat work surface. 10. A film setting mechanism in a packaging apparatus according to claim 9, wherein said film can be clamped and fixed on said flat work surface by a clamping tool through a cutout recess.