JP2000153803A - Packaging device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To remarkably improve the positioning accuracy of a material to be packaged, keep the interval of the material to be packaged constant at all times and carry out the good bag manufacturing and packaging process by providing a shutter to be opened and closed freely and also retractable upward on an introduction section of the material to be packaged. SOLUTION: A positioning shutter 15 retractable upward by a rotating and driving mechanism 18 is provided on the introduction position on the carrying side on the downstream of the introduction position of an introduction section 4 introducing and feeding a material 3 to be packaged into a film 1 in the open state, and a reciprocating movement mechanism 19 for reciprocatingly slide moving the shutter 15 in the carrying direction is also provided. The shutter 15 is suspended and set into the closed state, and the material 3 to be packaged is introduced and the shutter 15 is moved slightly to the carriage front side. The material 3 to be packaged in the state of hitting the shutter 15 is set on the given staring position at all times by the arrangement. Then the shutter 15 is rotated upward and opened to start the carriage.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging apparatus for successively packaging objects to be packaged in a film while forming the film into a cylindrical shape.

[0002]

2. Description of the Related Art The following automatic packaging apparatus is currently used.

[0003] A feeding section which guides a strip-shaped film wound in a roll shape into two folds while being pulled out and guided, and holds the left and right upper edges of the folded two-folded film with a predetermined length of opening. Is provided,
A packaged object is put into the film at a predetermined interval from the input section, and both ends of the upper part of the folded film containing the packaged material are closed by polymerization sealing to form a cylindrical film. A horizontal sealing device is provided, and a vertical sealing device for heat-sealing a portion between the packaged objects of the tubular film is provided. A packaging device is configured by providing a cutting device for separating the packaging bag at the transport end of the transport device.

In addition, the articles to be packaged are sequentially placed on the input section by hand, or the articles to be packaged are automatically dropped one by one with the discharge end of a supply device such as a conveyor device facing above the input section. It is configured to be placed on the lower side and put in, and the put-in (packed on the opening guide) is conveyed together with the folded film and subjected to the above-described processes to form a bag. Make up.

[0005]

However, the objects to be packaged are manually supplied according to the intermittent conveyance of the film so that the objects to be packaged are conveyed at a predetermined interval, or the supply timing by the supply device is adjusted by the conveyance device. Even when synchronized with intermittent conveyance, the spacing between the packages may vary, and the vertical seal position or cutting position may not always be located between the packages, but may be offset to either side. There is a possibility that a problem may occur in bag processing.

The present invention provides an extremely innovative packaging apparatus in which the positioning accuracy is dramatically improved by a simple method, the objects to be packaged are always kept at a constant interval, and the bag making process is performed well. It is intended to be.

[0007]

According to the present invention, there is provided a transport guide section 13 comprising a former or the like from which a film 1 wound into a roll is pulled out, and the drawn-out film 1 is folded back with its upper part opened. A transport device 2 that folds the film 1 folded by the guide portion 13 into two folds and continuously transports the film 1 forward; and a transport device 2 that is located on the loading side of the transport device 2 and is folded by the transport guide portion 13. A loading section 4 provided by an open guide section 13 for transporting and guiding the upper left and right edges in a state of being opened by a predetermined length, and a loading of the loading section 4 into which the packaged object 3 is loaded and supplied into the open film 1. A positioning shutter body 15 which is provided on the transport side from the position or the loading position of the loading section 4 and is provided so as to be able to retreat upward and open and close freely.
A horizontal sealing device 5 which is provided in the middle of the transport device 2 and closes an upper opening of the film 1 into which the article 3 is loaded by the loading section 4 and forms the film 1 into a cylindrical shape.
Is provided between the transport end of the transport device 2 and the transport side of the horizontal sealing device 5 on the transport side, and closes between the packaged objects 3 of the tubular film 1 to be transported. A vertical sealing device 6 and a packaging bag 12 containing the subsequent tubular film 1 and the article 3 to be packed on the transport side by cutting the middle part of the sealed portion of the film 1 closed by the vertical sealing device 6.
And a cutting device 7 for separating the packaging device from the packaging device.

The plate-shaped positioning shutter body is located on the transport side from the loading position of the loading section 4 into which the packaged article 3 is loaded and supplied, and is located closer to the transport side than the horizontal sealing device.
2. The packaging device according to claim 1, wherein a shutter 15 is disposed so as to be interposed between the films in the folded state, and the shutter body 15 is configured to rotate and retract upward. is there.

[0009] Further, the positioning shutter body 15 is configured to be reciprocally movable in a conveying direction, according to any one of claims 1 and 2, wherein

The plate-shaped positioning shutter body 15 is located on the transport side of the loading position of the loading section 4 to which the packaged article 3 is supplied and on the transporting side of the horizontal sealing device 5.
Is arranged so as to be interposed between the films 1 in the folded state, and the shutter body 15 is configured to move to the transport side and to rotate and retreat upward, and to return downward to rotate. The packaging device according to any one of claims 1 and 2, wherein the packaging device is configured to move toward the transport side while the shutter is closed.

The position of the package 3 with respect to the film 1 is regulated by moving the positioning shutter body 15 to the front side of the conveyance so that the package 3 can be pushed back. The positioning shutter body (15) is retracted to open the shutter, and the package (3) is transported together with the film (1), and the package (3) is transported at a predetermined interval. A packaging device according to any one of claims 1 to 4.

A mounting member 17 for rotatably suspending the positioning shutter body 15 is provided with a rotation drive mechanism 18 for retracting and rotating the shutter body 15 upward and transporting the mounting member 17. 6. A packaging device according to claim 1, further comprising a reciprocating drive mechanism 19 for reciprocating in a direction.

[0013]

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.

According to the first aspect of the present invention, the film 1 wound into a roll is folded back by the transport guide portion 13 with its upper part opened, and the left and right upper edges of the folded belt-like film 1 are opened by a predetermined length. Since the loading section 4 is provided by the open guide section which guides the conveyance in the state, it becomes possible to feed and supply the article 3 to be packaged in the course of the bag making process by folding the film 1, and further, into the film 1 in the open state. A positioning shutter body 15 is provided on the transport side of the loading section 4 to which the packaged article 3 is loaded or supplied or from the loading position of the loading section 4, and the positioning shutter body 15 prevents the transport of the packaged article 3. When the positioning shutter body 15 retreats upward, the packaged object 3 is transported together with the transport of the film 1.

The positioning shutter body 15 moves toward the transport side with the hanging shutter closed, and pushes the package 3 back toward the transport side by this movement, thereby always positioning the package 3 at a predetermined position. Can be set.

That is, for example, when the shutter body 15 is manually placed at the loading position, after the shutter body 15 is positioned and placed with the shutter body 15 as a guide, the shutter body 15 temporarily moves a little toward the transport side, and
As a result, the packaged object 3 is slightly pushed back, and is always positioned and set at a predetermined start position in a state where the packaged object 3 surely hits the shutter body 15. At this position, the shutter body 15 retreats (opens) upward, and the conveyance is started (restarted).

Also, in the automatic supply by the supply device 16, the shutter body 15 may be closed, but even if the packaged object 3 is opened and slightly more than the start position (positioning position) is conveyed, the shutter body 15 may be closed. When the body 15 is closed and slightly returns to the transport side as described above, the packaged object 3 is pushed back, and is always positioned and set at a predetermined position.

Therefore, the packaged material 3 which is always thrown in can be positioned and set at a fixed position by the return position of the shutter body 15.
Since the positioning is performed by pushing back slightly at 15, the packaged object 3 always comes into contact with the positioning shutter body 15, and the positioning shutter body 15 and the packaged article 3 do not remain separated from each other. Biting or the like hardly occurs in the processing or cutting processing, and the positioning accuracy is dramatically improved.

[0019]

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

First, a schematic configuration and operation of a packaging apparatus according to the present embodiment using a charging section 4 having a shutter structure according to the present invention will be described with reference to FIGS.

For example, a film 1 continuously wound into a roll is drawn out from the supply section S, and the heat-sealable strip-shaped film 1 is folded back into an open state with its upper part opened, and conveyed forward. A transport device 13 for transporting the two-folded film 1 is provided in a transport guide portion 13 made of
An opening guide section is provided as a loading section 4 for carrying the transport guide with the upper left and right edges of the folded film 1 folded by 13 held by a predetermined length as an opening section, and a predetermined interval is provided from the loading section 4 into the film 1. Then, an object to be packaged 3 such as a mushroom is supplied, and the upper opening of the film 1 containing the object to be packaged 3 is closed by polymerization sealing to provide a transverse sealing device 5 of an ultrasonic welding type which forms a cylindrical film 1. , The transfer device 2
A vertical sealing device 6 for sandwiching and heat-sealing the portion of the tubular film 1 between the packages 3 to be intermittently conveyed, and cutting the portion between the vertical seals to form a subsequent cylinder. A cutting device 7 for separating the shape film 1 and the packaging bag 12 containing the article 3 to be transported on the transport side at the transport end of the transport device 2;
The transfer device 11 is further transferred to the transfer side than the cutting device 7.
A deaerator 10 is provided above the cylindrical film 1 for depressurizing the cylindrical film 1 and deaerated. After the deaeration, the vertical sealing device 6 and the cutting device 7 are operated to enter the deaerated package 3. The packaging bag 12 is configured to be transported and discharged by the transfer device 11.

That is, after the cylindrical film 1 containing the articles to be packaged 3 is intermittently transported by the conveyor 2 together with the articles 3 to be loaded and placed in the loading section 4 and deaerated by the deaerator 10, While the tubular film 1 is pressed and shaped by the pressing device 8 from the left and right and up and down directions, the rear packaged object 3 and the front packaged object 3 are sealed in the film 1 in a partitioned state by the vertical sealing device 6. Is cut by the cutting device 7 and enclosed on the transport side.
The containing packaging bag 12 is discharged, and the leading end of the subsequent tubular film 1 is closed.

Then, the package 3 is intermittently conveyed again, and this operation is repeated, whereby the packaged articles 3 are automatically packaged one by one in a predetermined amount.

Further, in order to keep the packing form of the bulky article 3 which is easy to be bulky, before the vertical seal is closed, the gusset claws 9A are pushed inward from both side surfaces of the tubular film 1 and retracted. A gusset device 9 that folds the side of the tubular film 1 inward (gives gussets) is provided.

The present invention is constituted by a packaging apparatus having the overall structure of the present invention by combining a stable supply device for the articles to be packaged 3 in addition to the structure of the charging section 4 of the packaging apparatus having the structure of the above embodiment. ing.

Next, the configuration of the input section 4 having the shutter structure according to the gist of the present invention will be described with reference to FIGS.

The article to be packaged 3 is supplied to the supply device 16 (conveyor device).
Unit 4 (opening guide unit) that is automatically supplied in order by the automatic drop
A plate-like positioning shutter body 15 that closes the transport route of the packaged object 3 and prevents the packaged object 3 from being transported, slightly on the transport side from the loading position and nearer to the transporter than the horizontal sealing device 5.
Are disposed so as to be interposed between the two folded films 1.

The shutter body 15 is configured so as to be retracted and rotated upwardly on the transport side from the above-mentioned suspended shutter closed state by the rotation driving mechanism 18.

As described above, simply opening and closing the shutter plate may cause a positional shift when the packaged object is supplied to the input portion with reference to the shutter plate. Due to this positional deviation, the distance between the articles to be packaged is not always constant, so that the articles to be packaged may be bitten in the bag making process by the vertical sealing device or the cutting device on the transport side. The shutter body 15 is configured to reciprocally slide in the transport direction by a reciprocating drive mechanism 19.

In this embodiment, the retracted shutter is moved upward from the hanging shutter closed state and is slid toward the conveying side at the same time as the conveying direction. The package 3 is fed by feeding or film transport, and is first returned downward by the rotation drive mechanism 18 and turned to bring the shutter body 15 into a hanging state as shown in FIG. 9, and then as shown in FIG. The reciprocating drive mechanism 19 returns to the transport side and slides.

While the shutter is closed, the shutter body 15
Is configured to be slightly pushed back to the front side of the transport by sliding the front side toward the side of the transport.

Therefore, after the package 3 is pushed back by the shutter body 15 and positioned at a predetermined position as shown in FIG. 10, the shutter body 15 is opened as shown in FIG. Is conveyed, so that the packaged object 3 can always be positioned and set at a fixed position by the return position of the shutter body 15, and because the positioning is performed by pushing back, the packaged object 3 always hits the shutter body 15 Thus, the packaged object 3 does not remain separated from the shutter body 15, and it is difficult for the packaged object 3 to bite in the vertical sealing process and the cutting process, so that the positioning accuracy is dramatically improved.

In this embodiment, the film 1 is automatically supplied one after another by the supply device 16 as described above, and the conveyance of the film 1 is intermittently stopped at the position where the supplied and loaded article 3 is slightly conveyed beyond the positioning position. The feeding timing of the supply device 16 is set so that the positioning shutter body 15 that has been retracted upward while being slid to the transport side as described above is returned downward and rotated, and this shutter closed state is maintained. The next packaged object 3 is positioned and set by pushing back the shutter body 15 so as to be pushed back to the positioning position. However, the next packaged object 3 is manually placed on the input unit 4 (on the open guide unit). In this case, the positioning shutter body 15 is configured to be held in a hung shutter closed state at the time of insertion, and the packaged object 3 is sealed using the shutter body 15 as a guide. When the film is placed close to the cutter body 15, the positioning shutter body 15 once returns to the front side of the conveyance and pushes back the packaged object 3 before the conveyance of the film 1 is resumed as described above, and is manually inserted. In this case, the package 3 is always pushed back a little and positioned and set at an appropriate position.

Further, in the present embodiment, the above-described operation is reliably performed, and the transport of the film 1 is not started (restarted) in spite of the fact that the package 3 is not loaded. Three confirmation sensors 14 are provided.

That is, when the positioning sensor body 15 hangs down and the confirmation sensor 14 detects the packaged object 3 which is supposed to be in front of the positioning shutter body 15, the reciprocating drive mechanism 19 operates. Then, the positioning shutter body 15 is pushed back and moved to the front side to position and set the packaged object 3, and in conjunction with this, the rotation drive mechanism 18 is operated to open the positioning shutter body 15, and together with this, the transport device 2 is moved. When activated, the packaged object 3 is conveyed together with the film 1 for a predetermined distance and stopped.

During the stop, the positioning shutter 15 is closed, and the vertical sealing device 6 and the cutting device 7 are operated to perform the bag making process.

Upon completion of this operation, the operation is repeated again on condition that the detection operation of the confirmation sensor 14 is performed again.

Next, the rotation drive mechanism 18 and the reciprocation drive mechanism 19 will be described, and the specific structure in this embodiment will be further described.

FIG. 8 shows the charging section 4 so that the structure is clear.
FIG. 3 is a schematic explanatory view of a main part of the film having the open guide portion removed therefrom. As shown in this figure, in the present embodiment, the folded film is adjacent to the transport guide portion 13 which folds the film 1 to be transported. A mounting plate 17 serving as a mounting member 17 is provided on the left and right outer sides of the mounting plate 17, and a rotating plate 15A is rotatably connected to the upper portion of the mounting plate 17 via a support shaft 20. A mounting board 15B is installed between the mounting boards 15B, and a plate-shaped positioning shutter body 15 is vertically suspended on the mounting board 15B to attach the shutter body 15 to the mounting member 17.
It is provided so as to be rotatable with respect to.

A cylinder device 18A for rotational drive is provided on the outer surface of one side of the mounting plate 17 serving as the mounting member 17, and a rod 18B of the cylinder device 18A is connected to the rotary plate 15A. The rotation plate 15A is rotated by the advance and retreat of the rod 18B by the operation, and the positioning shutter body 15 is rotated by the support shaft 20.
The rotation drive mechanism is driven to rotate with respect to
Make up 18.

A connecting rail 17A is provided below the mounting plate 17 serving as the mounting member 17, and the connecting rail 17A is connected to moving pieces 19A arranged on the left and right sides, respectively. body
The rod 19D of the cylinder device 19C for sliding movement is connected to the connecting rail 17A, while the rod 19D is configured to move along the guide rod 19B arranged on the left and right.

Accordingly, by operating the cylinder device 19C to move the rod 19D forward and backward, the left and right guide rods 19D are moved.
The mounting plate 17 serving as the mounting member 17 slides in the transport direction while being guided by B, and the mounting plate serving as the mounting member 17
When the slide 17 moves in the transport direction, the mounting plate 17
The positioning shutter body 15 that is rotatably mounted on the camera is configured to slide back and forth in the transport direction.

[0043]

Since the present invention is constructed as described above, the film wound into a roll is folded back with the upper part opened by the transport guide portion, and the left and right upper edges of the folded strip-shaped film are set to a predetermined length. Since the loading section is provided by the open guide section that guides the conveyance in the opened state, it becomes possible to feed and supply the packaged articles in the course of the bag making process by folding the film, and the loaded packaged articles are Depending on the setting position of the shutter body, it can be positioned and set at a substantially constant position.

Further, since the positioning is performed by slightly pushing back the positioning shutter body, the object to be packaged always comes into contact with the positioning shutter body, and the positioning shutter body and the object to be packaged do not remain separated from each other. In addition, it is possible to provide an epoch-making packaging device in which biting or the like hardly occurs in the vertical sealing process and the cutting process, and positioning accuracy is dramatically improved.

Further, while retracting the positioning shutter body, the positioning shutter body is previously slid to the transport side to open the positioning shutter body, and when closing the positioning shutter body, the positioning shutter body is once turned downward. After the shutter is closed, the positioning shutter body is moved back toward the transport side, so that the configuration can be designed simply, the operation can be performed efficiently, and the present invention can be easily realized. This is a revolutionary packaging device.

[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 plan view of the present embodiment.

FIG. 3 is an enlarged schematic perspective view illustrating a configuration of a bag-making process portion of the present embodiment.

FIG. 4 is an enlarged explanatory side view schematically illustrating a configuration of a bag-making processing portion according to the present embodiment before a cutting process.

FIG. 5 is an enlarged schematic explanatory side view of the bag making processing portion of the present embodiment at the time of cutting processing.

FIG. 6 is a schematic enlarged explanatory side view of the bag-making processing portion of this embodiment after a cutting process.

FIG. 7 is a schematic enlarged explanatory perspective view of a main part (input part) of the present embodiment.

8 is a schematic enlarged explanatory perspective view of the shutter structure in which the opening guide portion of FIG. 7 is removed and the shutter structure is clearly shown.

FIG. 9 is a schematic enlarged explanatory side view of a main part (input part) of the present embodiment in a state in which conveyance of an article to be packaged is once stopped (a state in which the conveyance is possible).

FIG. 10 is a schematic enlarged explanatory side view of the main part (loading part) of the present embodiment when the positioning shutter body has returned and moved from the state shown in FIG.

FIG. 11 is a schematic configuration enlarged explanatory side view showing a state in which a positioning shutter body is retracted and rotated from the state shown in FIG.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 film 2 transport device 3 packaged object 4 loading section 4A loading position 5 horizontal sealing device 6 vertical sealing device 7 cutting device 12 packaging bag 13 transport guide portion 15 positioning shutter body 16 supply device 17 mounting body 18 rotation drive mechanism 19 reciprocating Moving drive mechanism

Claims (6)

[Claims] 1. A transport guide section comprising a former which is drawn out of a film wound in a roll shape and folds the pulled out film with an upper part opened, and a film folded back by the transport guide section into two folds. A transport device that is folded back and continuously transported forward, and an open guide portion that is located on the loading side of the transport device and that transports the film folded by the transport guide portion in a state where the left and right upper edges are opened by a predetermined length. And a loading portion provided in the film in an open state, and the loading position of the loading portion or a transport side from the loading position of the loading portion, wherein the loading portion is provided so as to be retractable upward. A positioning shutter body configured to be openable and closable together with
A horizontal sealing device that is provided in the middle of the transporting device and that closes an upper opening of the film into which the article to be packaged has been loaded by the loading unit and forms the film into a tubular shape; and a transport end of the transporting device or the horizontal sealing device A vertical sealing device that is provided in the middle of the transport on the transport side with respect to the device and closes between the packaged objects of the cylindrical film to be transported, and a sealing portion of the film closed by the vertical sealing device A cutting device that cuts a middle part of the package and separates the subsequent tubular film from the packaging bag containing the article to be packaged on the transport side. 2. A film in a folded state with the plate-shaped positioning shutter body being on the transport side from the loading position of the loading section into which the packaged material is loaded and supplied, and nearer to the transport than the horizontal sealing device. 2. The packaging device according to claim 1, wherein the packaging device is disposed so as to be interposed therebetween, and the shutter body is configured to rotate and retract upward. 3. The packaging device according to claim 1, wherein the positioning shutter body is configured to be reciprocally movable in a transport direction. 4. The film in a folded state with the plate-shaped positioning shutter body being on the transport side from the loading position of the loading section where the packaged material is loaded and supplied, and nearer to the transport than the horizontal sealing device. The shutter body is arranged so as to be interposed therebetween, and the shutter body is configured to move to the transport side and rotate upward and retreat, and return downward and rotate to the transport front side while the shutter is closed. The packaging device according to claim 3, wherein the packaging device is configured to move. 5. The positioning shutter body is configured to be able to push back and move the packaged object by moving the positioning shutter body toward the conveying side, to regulate the position of the packaged object with respect to the film, and to execute the positioning shutter at a predetermined timing. 5. The package according to claim 1, wherein the body is retracted to open the shutter, the package is transported together with the film, and the package is transported at a predetermined interval. A packaging device according to claim 1. 6. A mounting member for rotatably suspending the positioning shutter body is provided with a rotation drive mechanism for retracting and rotating the shutter body upward, and reciprocating the mounting member in the transport direction. The packaging device according to any one of claims 1 to 5, further comprising a reciprocating drive mechanism.