JP2012046230A - Heat seal wrapping apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heat seal wrapping apparatus that can contribute to the reduction in garbage and a wrapping cycle.SOLUTION: The heat seal wrapping apparatus A wraps an object to be wrapped by a film drawn out of a film roll 6. The heat seal wrapping apparatus includes: a carrying-in unit mounting a base sheet for carrying the base sheet mounting the object to be wrapped thereon into a heat station within the apparatus; a heater unit heat-sealing the film around the object to be wrapped with the object wrapped by the film, and the base sheet; a heater receptacle corresponding to the heater unit; and an ejection unit ejecting the object to be wrapped through heat-sealing by the heater unit and the heater receptacle, and is provided in a position different from the carrying-in unit.

Description

  The present invention relates to a heat seal packaging apparatus that covers a film drawn from a film roll on an object to be packaged placed on a base material, and wraps the film by thermally welding the edge of the film to the surface of the base material.

Various types of packaging are used to reduce the amount of garbage by reducing the amount of containers and films to be used. For example, a package is accommodated in a tray, and the film is covered only on the top opening of the tray. A heat-sealing packaging device (top-sealing packaging device) that can reduce the amount of film used by heat-welding around the tray is known (for example, see Patent Document 1).
However, the technique disclosed in this document uses a tray with a side wall having a height around it and cannot contribute much to reducing the amount of dust. In addition, since the heat-sealing packaging apparatus carries the packaged material into the packaging apparatus and discharges the packaged packaged object at the same location, the packaging of the packaged object previously carried in is completed and discharged. Until then, it is not possible to carry in the next article to be packaged, to shorten the packaging cycle, and to perform the packaging work efficiently.

And, in terms of the packaging cycle, a packaging device that uses the same normal tray as the tray, and a packaging device in which a carry-in port for a packaged item and a discharge port for a packaged packaged item are provided separately are known. (For example, refer to Patent Document 2).
This packaging device is a packaging device that wraps the entire tray containing the objects to be packaged with a film. Specifically, in order to wrap the tray with a film, the tray is transported to the elevator by a transport device and placed on the elevator. Next, the elevator is pushed up against the film stretched and held in the packaging section above the elevator to cover the upper surface and outer peripheral surface of the package with the film, and the periphery of the film is further wrapped with a folding plate. This is a packaging device that folds into the bottom side of the bag.

For this reason, a transport device that transports an article to be packaged to an elevator and is transferred to the elevator is composed of a plurality of parallel belts, and the head portion of the elevator is formed in a nested shape into which the belt of the transport device is fitted. . That is, the elevator that supports and supports the article to be packaged partially supports the bottom surface of the article to be packaged. And, by using a so-called tray without using a tray and placing a package on a flat base material, covering it with a film and adhering the surroundings to wrap it, the amount of film to be used is reduced, reducing the amount of waste. Although the packaging form which can contribute also is considered, the base material which mounted the to-be-packaged object on the flat-shaped base material which does not use the said so-called tray for the technique of conveyance of the to-be-packaged article and the pushing-up by an elevator disclosed by patent document 2 When the film is used in a heat-sealing packaging apparatus for heat-welding a film to the surface of the film, a portion for supporting the base material, that is, a heater receiver corresponding to the heater is partially present. As a result, the heat-welded portion is not present. It will be formed in a continuous form.
Therefore, the technique described in Patent Document 2 cannot be used in a packaging form in which an article to be packaged is placed on the base material and packaged, and can contribute to the reduction of waste, and packaging with good packaging efficiency cannot be performed.

JP 2001-294210 A JP 2002-255337 A

  The present invention has been made in view of the above-described problems of the prior art, and an object of the present invention is to provide a heat seal packaging apparatus that can contribute to the reduction of dust and can shorten the packaging cycle.

In order to achieve the above object, the heat seal packaging apparatus of the present invention is a heat seal packaging apparatus for packaging an object to be packaged with a film drawn from a film roll. A carry-in unit for placing the base material for carrying into the heat station; a heater unit for heat-welding the film around the package covered with the film and the base material; and the heater unit A heater receiving portion corresponding to the heater receiving portion, and a discharge portion provided at a position different from the carry-in portion that discharges the package heat-sealed by the heater portion and the heater receiving portion. Claim 1).
The heat station refers to a position where heat sealing is performed by the heater unit and the heater receiving unit, and the heater unit and the corresponding heater receiving unit may be positioned in advance in the heat station, or when performing heat sheeting. The heater part and the heater receiving part corresponding to the heater part may be moved from the other positions to a position for heat-welding the film and heat-sealed.
In order to achieve the above object, a specific example of the heat seal wrapping apparatus of the present invention is, for example, a heat seal wrapping apparatus that wraps a package with a film drawn from a film roll by a film feed means. In order to carry the base material on which the base material is placed into the heat station in the apparatus, the carrying part for placing the base material and the base material on which the packaged material is placed are supported and supported during packaging. A base material placing means, a guide means for supplying the base material placed on the carry-in portion directly above the base material placing means, and a transfer for replacing the base material on the guide means with the base material placing means. Mounting means, covering means for covering an object to be packaged on a base material with the film drawn out by the film feed means, and for thermally welding the periphery of the film covering the object to be wrapped and the base material And a heater receiving portion corresponding to the heater portion, a package in which the film and the base material are thermally welded are discharged out of the apparatus, and a discharge portion provided at a location different from the carry-in portion And the guide means between an initial position placed on the carry-in portion and an upper position of the base material placing means for replacing the placed base material with the base material placing means. It is movable (claim 2).
The base material is made of paper, resin (for example, resin sheet, foamed resin sheet, resin plate, etc.), thin wooden board, laminated sheet with different materials bonded together, etc. In some cases, surface treatment (resin lamination, coating treatment, etc.) that enables thermal welding is performed. The surface of the base material may be plain (white), but the product may be conspicuous by using a colored or printed pattern according to the product to be placed.

The film covering the surface of the packaged object is not limited to a stretch film, and may be a film having no elasticity (for example, a polypropylene film).
The film feed means grasps the leading end of the film connected to the film roll arranged in the film roll arrangement part and pulls it out for a predetermined length, and stretches and holds the drawn film above the base material mounting means. The system may be any of a system in which a member for gripping the leading edge of the film is moved, a system in which both sides in the width direction of the film are sandwiched between upper and lower belts that rotate endlessly, and the film is pulled out by driving the belt.

The covering means that covers the package on the base material with the film drawn out by the film feed means is a method in which, for example, sucking and holding is performed until the peripheral edge of the film from which the film has been drawn is thermally welded by the heater portion. In order to stretch and hold (holding means) the entire film substantially horizontally, and to cover the stretched film on a package on a base material placed on the base material mounting means, the film feed means or the base By moving the material mounting means by the moving means, the object to be packaged is covered with the film, and the periphery of the film is sealed by the heater portion.
The moving method is appropriately selected depending on the member to be moved (film feed means or base material placing means), and the drive may be either electric or manual. For example, when the film feed means and the suction means are fixed at a predetermined height position and the base material placing means is pushed up from below on the film stretched and held by the holding means for packaging, the base material placing means is substantially omitted. A method of moving up and down in the vertical direction in a horizontal state.
Alternatively, the base material mounting means may be fixed at a predetermined height position, and the holding means and the heater unit that stretches and holds the film with respect to the base material mounting means may be lowered to thermally weld the film to the base material. .

And the form of the suction part that adsorbs the film is a hollow frame structure that adsorbs the front and rear parts of the drawn film and the four sides in the width direction of the film, or a perforated flat plate structure that adsorbs the entire packaging area of the drawn film. And so on. In the case of a flat plate structure, the flat plate on which the intake air acts is formed by an elastic member that expands and contracts by contact with the package.
And the suction part in the case of attracting | sucking and hold | maintaining is arrange | positioned inside the heater part which heat-welds a film to a base material, for example.
In the case of a system in which the leading edge of the waiting film is pulled out to a predetermined position by the film feed means of the clamp member, the object to be packaged is covered with the film, and then the film end connected to the film roll is cut. The means corresponds to the holding means.

In addition, the heater part heat-welds the edge of the film covering the package to the base material, and the form of the heat-welding is basically a form in which the four sides are heat-welded along the outer shape (for example, a rectangle) of the base material. However, depending on the package, only two opposite sides or only three sides may be heat welded.
Further, the discharging means is a system in which the base material mounting means for mounting the package is tilted to a predetermined angle, and the inclination is used to slide and drop out of the base material mounting means by gravity, or the package is discharged. Any method such as a method of forcibly discharging by pressing with, for example, may be used.

  According to the above means, the base material on which the package is placed is placed on the guide means at the initial position, the guide means is moved to the base material mounting means side, and the transfer means is returned to the initial position. In cooperation with, the base material is transferred to the base material loading means. Further, the film is pulled out from the film roll by a predetermined length by the operation of the film feed means, the drawn film is stretched and held substantially horizontally by the suction means, and the film feed means or the base material placing means is relatively moved. In this way, the object to be packaged on the base material is covered with a film, and the edge of the film covering the object to be packaged is thermally welded to the surface of the base material by the heater, and the packaged package is placed on the base material mounting means. Is discharged from the apparatus by the discharging means. And since the discharge means is provided at a position different from the initial position of the guide means, after transferring the base material placed on the guide means to the base material mounting means in cooperation with the transfer means, Since the guide means returns to the initial position, the base material on which an article to be packaged next is placed can be placed on the guide means and prepared. Therefore, the packaging cycle of heat seal packaging can be shortened. Further, the base material mounting means may also serve as a heater receiving part when performing heat sealing, or a heater receiving part may be provided around the base material mounting means with a member different from the base material mounting means. The film may be thermally welded by the heater portion and the heater receiving portion. In addition, when the base material placing means and the heater receiving portion are separately provided, the heater receiving portion moves around the base material placing means only when heat sealing, and the base material placed on the base material placing means is removed. The film may be thermally welded to the surface of the base material by supporting from below and using a heater and a heater receiving portion.

The guide means is preferably a drawer system having a mounting portion for supporting the base material (Claim 3), and the transfer means guides the base material supported by the guide means into the apparatus. A projecting piece portion that abuts a rear edge of the guide device and protrudes into and out of the movement path of the guide means, the projecting piece portion projecting into the movement path of the guide means by an initial position return operation of the guide means, and the base The rear end edge of the material comes into contact with the base material and is transferred onto the base material mounting means.
The projecting piece portion of the transfer means may be either a type protruding from above with respect to the placing portion of the guiding means or a type protruding from below with respect to the placing portion.
A specific example of the type in which the protruding piece portion of the transfer means protrudes from below with respect to the placing portion is a comb tooth shape, and the corresponding placing portion of the guide means has a comb tooth shape in plan view. . In other words, the mounting portion of the guide means and the protruding piece portion of the transfer means are in a nested form that meshes with each other (Claim 5).

According to the above means, the guide means is moved to the initial position side in a state in which the projecting piece of the transfer means is engaged with and contacted with the rear edge of the base material placed on the placing portion of the guide means. Thus, the base material placed on the placing portion of the guide means can be transferred onto the base material placing means.
In the case of a nesting configuration in which the placing portion of the guiding means and the protruding piece portion of the transferring means are engaged with each other, the protruding piece portion of the transferring means protrudes upward or downward through the comb-shaped placing portion. Therefore, even if the base material placed on the placing portion is thin like a paper board, the protruding piece portion is surely engaged and abutted with the edge of the end of the base material, and the base material is changed from the guiding means to the base material placing means. You can be surely transferred.

Alternatively, the size of the base material may be detected to control the feed amount of the film, the size of the heater portion for heat welding, and the like. Specifically, a detecting means for detecting the size of the base material placed on the base material placing means, and a film feed amount change for controlling the feed amount of the film feed means based on detection information of the detecting means And a heater unit moving unit that changes the size of the heater unit based on the detection information of the detection unit.
As a specific example of the detection means, for example, a detection through hole for each size is formed through the support surface of the base material mounting means, and the detection sensor is used as a machine frame with the through hole for each size interposed therebetween. A configuration in which the upper and lower portions are opposed to each other is claimed (claim 7).
As the detection through holes for each size to be formed on the support surface of the base material mounting means, for example, two types of “large” size and “small” size, or “large” size, “medium” size, Three types for “small” size.

According to the above means, when the base material is transferred from the guide means to the base material mounting means, the size of the base material is detected by the detection means, and the length of the film covered on the base material based on the detection information, And the size of the heater part which heat-welds the film to a base material is each changed, and it can heat-seal with the film size and heater part which matched the magnitude | size of the base material. Therefore, heat seal packaging can be performed in an optimal state with no waste of film.
In addition, the detection of the size of the base material is ensured because the detection sensor detects which of the plurality of detection through holes formed in the base material mounting means is blocked by the base material. Size detection can be performed. In addition, since the detection sensor is disposed so as to face diagonally, the light projecting surface and the light receiving surface of the detection sensor are also in an inclined state close to the vertical surface. As a result, dust or the like is present on the light projecting surface and the light receiving surface. Is not deposited and deposited, and stable detection accuracy can be maintained over a long period of time.

Further, the base material placing means may change the posture from the horizontal state to the inclined state at the final stage of the descending operation, and the package may be discharged to the discharge means by gravity (Claim 8).
In this case, the discharging means is also arranged in an inclined state so as to be continuous with the inclination of the base material mounting means.

  According to the above means, the package that has completed the heat seal wrapping is automatically discharged to the discharge port by changing the posture to the inclined state that continues following the lowering of the base material placing means. As a result, the base material placing means becomes ready to receive the next packaged item, which contributes to shortening the packaging cycle.

According to the heat seal packaging apparatus of the present invention, the base material on which the package object is placed is carried into the apparatus and heat-sealed so as to surround the package object placed on the base material. Since the packaged base material comes to be discharged from the discharge part at a different location from the carry-in part, the next base material can be supplied from the carry-in part without waiting for the discharge from the discharge part. The packaging cycle can be shortened, and the packaging using the base material can contribute to the reduction of dust unlike packaging using a tray.
According to the second aspect of the present invention, since the base material on which the article to be packaged is transferred is transferred from the guide means to the base material receiving means having a heater receiving portion, the article to be packaged is covered with a film. The surroundings are heat-welded, the guide means returns to the initial position and waits for the next article to be received, and the article to be packaged transferred to the base material placing means is heat-sealed. And discharged to a different outlet than the guiding means. Therefore, it is possible to provide a heat seal packaging apparatus that can shorten the packaging cycle. In addition, since the packaged form is such that the packaged material is placed on the base material and covered with a film, it can contribute to the reduction of waste without using a tray. Since it is placed and packaged, it looks better than a packaging form in which an article to be packaged is simply put into a bag, and can encourage purchase.
According to the third aspect of the present invention, since the base material is guided to the apparatus by a pull-out method, it can be guided by a simple mechanism without having a drive mechanism.
According to the fourth aspect of the present invention, when the guide means returns from the top of the base material mounting means to the initial position, the projecting piece of the transfer means protrudes in the movement path of the guide means, and guides into the apparatus. In contact with the rear edge of the base material in the direction, the base material is transferred onto the base material mounting means. That is, when the guide means moves back from the position immediately above the base material placing means to the initial position, the projecting piece abuts on the rear edge of the base material, and the base material on which the packaged material is placed becomes the base material rest. Since it is separated and transferred to the means, the base material can be reliably transferred with a simple mechanism.
Further, the trailing edge of the base material is pressed against the projecting piece, and the base material is transferred onto the base material mounting means while the guide means moves, so that the base material is constant on the base material mounting means. Since it comes to be located in the direction and position, it is possible to always pack in the correct position.
According to the fifth aspect of the present invention, the placing portion of the guide means and the protruding piece portion of the transfer means are nested, so that the base material can be reliably transferred.
Further, according to the structure of the sixth aspect, it is possible to perform heat welding with a film size and a heater portion suitable for the size of the base material. Therefore, heat seal packaging can be performed in an optimal state with no waste of film.
According to the seventh aspect of the present invention, a hole penetrating vertically for each size is formed on the support surface of the base material mounting means, and the size of the base material is detected based on whether or not the hole is closed. Can do. That is, since the size is detected in a state where the base material is stopped, the size can be detected more reliably, and the detection sensor is disposed so as to face diagonally. The light projecting surface and light receiving surface of the detection sensor are also inclined near the vertical surface. As a result, dust and the like are not deposited and deposited on the light projecting surface and the light receiving surface, and stable detection accuracy is maintained over a long period of time. be able to.
In addition, with the configuration according to the eighth aspect, it is possible to automatically discharge a package that has been heat-sealed.

The external appearance perspective view which shows an example of embodiment of the heat seal packaging apparatus which concerns on this invention. The same side view. It is the elements on larger scale which show a base material mounting means and a guide means part, (a) is a top view, (b) is a side view. It is sectional drawing which shows the structure of a guide means and a transfer means, (a) is the state in which a transfer means waits below a guide means, (b) is the state which the transfer means protruded upwards from the guide means. It is a perspective view which shows the positional relationship of a guide means and a transfer means, (a) is a perspective view of the state in which the flat plate of a guide means is located in an initial position, (b) is a perspective view in the state where the flat plate was moved on the mounting base. Figure. It is a perspective view which shows the positional relationship of a guide means and a transfer means, (a) is a perspective view in the state in which the flat plate of a guide means returns to the initial position from a mounting base, (b) is the flat plate which returned to the initial position. The perspective view of a state. It is a figure which shows the structure of the detection means which detects the size of the base material mounted by the base material mounting means, (a) is a top view, (b) is sectional drawing. It is a figure which shows the relationship between a base material mounting means and discharge | emission means, (a) is a top view, (b) is an expanded sectional view shown notched in part. The relative relationship between the moving means of the base material placing means, the guiding means, and the transferring means is shown, (a) is in the initial position (lower limit position), (b) is the base of the base material placing means in the intermediate position. A state where the flat plate of the guide means is inserted at a position directly above it. The relative relationship between the movement means of the base material placing means, the guide means and the transfer means is shown, (a) is the state of the packaging position (upper limit position), (b) is the platform lowered to the initial position, and the package is removed. The state of discharging to the discharging means. The perspective view which shows the structure of a suction means and a heater part. In the bottom view, (a) shows a state where the partition wall is located at the first position, and (b) shows a state where the partition wall has moved to the second position. The longitudinal cross-sectional view of the state which attracted and held the film with the suction means. FIG. 6 shows a film tip clamping operation by a film tip clamp portion of the film feed means, where (a) shows a state where the movable lower plate is opened, and (b) shows a case where the film tip is attached by closing the fixed upper plate and the movable lower plate. State, (c) is the state where the film is pulled out. Explanatory drawing which shows the releasing mechanism of a film front end clamp part. The block diagram of an electric mechanism part. Diagram showing the structure of the packaging file The flowchart figure which shows the flow of the packaging operation | movement of the heat seal packaging apparatus shown in FIG.

Hereinafter, an example of an embodiment of a heat seal packaging device according to the present invention will be described with reference to the drawings.
The heat seal wrapping apparatus A shown in FIGS. 1 and 2 places a package W on a flat base material, covers the package W with a stretch film, and covers the outer edge of the film W from the package W. An electric drive type heat seal packaging apparatus is shown that heat seals and wraps on the surface of a base material to pull out a film to be wrapped on a package W and perform up / down movement of sealing processing by motor drive.
The heat seal packaging apparatus A rests and holds the base material 12 on which the article W to be packaged is placed on the base 1, and has a heater receiving portion corresponding to the heater at a peripheral position corresponding to the periphery of the base material 12. The base material placing means 2 having the base material 12 on which the article W to be packaged is placed is supplied to the base material placing means 2, and the base material 12 on the guide means 3 is placed on the base material. The transfer means 4 for transferring to the receiving means 2, the film roll placement section 5 for feeding out the film to be placed on the package W on the base material 12, and the film 6 a from the film roll 6 placed on the film roll placement section 5. A film feed means 7 that draws out a predetermined length, a holding means 8 that stretches and holds the film 6a drawn out by the film feed means 7 above the base material mounting means 2, and a film that the holding means 8 sucks and holds. The moving means 9 for relatively moving the holding means 8 or the base material placing means 2 so as to cover the package W on the base material 12 with the film 6a, and the film 6a covering the package W A heater section 10 for thermally welding the edge to the surface of the base material 12 on which the article to be packaged W is mounted, and a discharge W for discharging the package W ′ in which the edge of the film 6a is thermally welded to the periphery of the base material 12 to the outside. And means 11. Since the base material 12 placed on the base material placing means 2 and the film 6a are thermally welded by the heater portion 10 located above, the base material placing means 2 and further the base material placing means. The space above 2 is a heat station used for packaging.

The base material mounting means 2 is a rectangular shape in a plan view using a metal material so that the base material 12 and the article to be packaged W are lifted and have a strength that does not deform even when pressed against the heater portion 10 located above. It is comprised in the mounting base 2a. The rectangular platform 2a is formed in accordance with a large-sized base material so as to correspond to two types of large and small base materials having different sizes (the same horizontal dimension and different vertical dimensions), and the entire upper surface. Is covered with a flat plate. A heater receiving portion made of a heat-resistant member such as silicon rubber is attached to a surface corresponding to the heater portion 10 on the surface of the mounting base 2a, so that the film 6a is stably welded to the base material 12. Yes. The upper surface of the base material mounting means 2 may be configured in a frame shape corresponding to the outer peripheral edge of the two types of base materials 12 without covering the entire surface with a plate member.
The base material placing means 2 is supported by a moving means 9 so as to move up and down between a heater portion 10 disposed above and a discharging means 11 on the base 1.

The moving means 9 has a horizontal receiving position (intermediate position) on which the mounting base 2a of the base material placing means 2 is placed on the base material 12 above the initial position from the downward inclined state at the initial position (lower limit position). In addition, it is pressed against the upper heater unit 10 in a horizontal state where the base material 12 is placed, and is raised and lowered between the welding position (upper limit position) where the film is thermally welded to the base material. The support shaft 13 is horizontally supported through the width direction at a substantially intermediate position of the depth dimension 2a, and both side ends of the support shaft 13 stand up on the base 1 so as to sandwich the base material mounting means 2 therebetween. It is attached to a sliding body 15 that moves up and down along a fixed guide column 14.
The sliding body 15 is connected to an end portion of a first link rod 18 attached to the distal end portion of a pair of left and right arms 17 pivotally supported on one end of a machine frame 16 standing and fixed on the base 1. The base material placing means 2 is moved up and down along the guide column 14 by the vertical movement of the arm 17.

The drive mechanism for moving the pair of left and right arms 17 up and down has one end portion of the second link rod 19 connected to a substantially intermediate position between the shaft support portion of the arm 17 and the shaft support position of the first link rod 18. One end of the swing rod 20 is connected to the other end of the two-link rod 19, and the other ends of the left and right swing rods 20 are connected to a shaft 21 that is horizontally supported by the machine frame 16. A toothed pulley 22 is fixed to one side of the shaft 21, and a belt 25 is wound around the toothed pulley 22 and a drive pulley 24 fixed to the output shaft of the motor 23. As a result, the arm 17 is vertically swung through the swing rod 20 and the second link rod 19 by the operation of the motor 23, and the sliding body 15 is moved up and down along the guide column 14 via the first link rod 18. The base material placing means 2 is moved up and down while stopping at the initial position, the horizontal receiving position, and the welding position.
The position detection (initial position, horizontal receiving position, welding position) of the mounting base 2a of the base material mounting means 2 is performed by a flag 73 attached to the sliding body 15, a lower position sensor 74a attached to the machine frame 16, It is configured to be detected by blocking the position sensor 74b and the upper position sensor 74c.

  Further, the platform 2a of the base material mounting means 2 mounts the package W ′ that has been heat-sealed and descends in a horizontal state, but is placed on the base 1 in the middle of the descending. When the rear portion of the frame 16 is in contact with the part 16 ′ of the frame 16 from the shaft 13, the posture is forcibly changed to a downwardly inclined state and lowered. On the contrary, when the base material mounting means 2 moves upward from the initial position, the posture is switched to the horizontal state by releasing the contact between the mounting base 2a and the part 16 'of the machine casing 16, and the covered state. The base material 12 on which the package W is placed can be received.

As shown in FIGS. 5 and 6, the guide means 3 for supplying the base material 12 on which the article W to be packaged is placed to the mounting base 2a of the base material mounting means 2 is a drawer having a cantilevered horizontal mounting portion. In the form, which also serves as a carrying-in part on which the article to be packaged W is placed, and on the stage 2a of the base material mounting means 2 from the initial position (see FIG. 5A) where the article to be packaged is placed (see FIG. 5). 5 (see (b)).
The cantilevered horizontal mounting portion is constituted by a flat plate 3a having a comb-like shape in a plan view, and a frame body 3c that surrounds the flat plate 3a in a U-shape in a plan view and holds the flat plate 3a horizontally is provided. The flat plate 3 a is configured such that both sides in the width direction are slidably supported by a guide frame 3 b fixed to the machine frame 16.
The length of the flat plate 3a is determined in accordance with a large-sized base material so that two types of large and small base materials 12 can be placed, and the front upper surface in the length direction of the comb-shaped flat plate 3a Further, a positioning projection 25 for mounting the base material 12 is fixed vertically upward. Thus, the base material 12 is placed on the mounting base 2a of the base material mounting means 2 on the back end reference by placing the rear edge of the base material 12 in contact with the front surface of the positioning protrusion 25. Can be listed.
The guide frame 3 b that slidably supports the flat plate 3 a is horizontally installed at a predetermined height position above the base 1 by the machine frame 16 standing on the base 1. The height position at which the guide frame is constructed is slightly above the height position at which the platform 2a of the base material mounting means 2 rises from the initial position and becomes substantially horizontal first. That is, the flat plate 3a that is slid along the guide frame 3b is positioned on the base material placing means 2 in the horizontal state. A handle 26 for sliding the flat plate 3a is attached to the upper surface of the front position (rear end portion) of the flat plate 3a. The sliding of the flat plate 3a may be an electric system using a motor or a linear movement mechanism without being manually operated.

Further, left and right guide frames 3b that slidably support a frame 3c that holds the flat plate 3a are arranged so that position detection sensors 32 and 32 'that detect the position of the flat plate 3a face each other. . As shown in FIG. 5B, the position detection sensors 32 and 32 ′ are arranged in the sliding path of the guide frame 3b, and the initial position on the machine frame 16 where the flat plate 3a is located or the base material mounting means 2. It is detected which position of the packaging position is just above the platform 2a. Specifically, when the position detection sensors 32 and 32 ′ are arranged in series along the sliding direction of the frame 3c and the flat plate 3a stops at the initial position, the tip of the frame 3c is positioned at the front side. It is detected that the optical path of only the detection sensor (in-feed initial position sensor) 32 is blocked and exists at the initial position. Further, a position detection sensor (infeed) in which the flat plate 3a is advanced to a position directly above the mounting base 2a of the base material mounting means 2 and the rear end portion of the frame 3c is disposed on the front side of the position detection sensor 32 in the flat plate traveling direction. (Packaging position sensor) The flat plate 3a held by the frame 3c is moved to the packaging position by blocking the optical path of only 32 ', that is, the base material 12 on which the article W to be packaged is moved has been moved onto the platform 2a. It is detected (see FIG. 5B). And the detection signal of position detection sensor 32 'which detects that the flat plate 3a was moved to the packaging position is output as a starting signal of the moving means 9 which moves up and down the mounting base 2a of the said base material mounting means 2. As shown in FIG. Then, as the mounting table 2a is raised by coming into contact with the flat plate 3a, the positioning protrusion 25 protrudes from the surface of the flat plate 3a as shown in FIG. 5 (b).
In addition, display lamps 79a and 79b indicating whether or not the flat plate 3a can be inserted and pulled out in conjunction with the position detection sensors 32 and 32 'detecting the sliding (insertion and pulling) of the flat plate 3a are guide means 3. It is arranged on the upper front of the device.
The display lamp 79a is an in-feed insertion lamp, which indicates that the flat plate 3a can be inserted into the apparatus from the initial position. That is, the platform lower position sensor 74a is ON (the platform 2a is at the lower position), the product discharge sensor 72b is OFF (no product is detected), and the position detection sensor (in-feed initial position sensor) 32. Is OFF (the position detection sensor (infeed initial position sensor) 32 is blocked by the frame 3c and the flat plate 3a is in the initial position). For example, the flat plate 3a is once wrapped. When the position detection sensor (infeed packaging position sensor) 32 ′ is turned off (the infeed packaging position sensor 32 ′ is blocked by the frame 3c), the light is turned off.
The display lamp 79b is an in-feed drawer lamp, and is a lamp indicating that the flat plate 3a can be returned to the initial position from the inside of the apparatus. That is, the position detection sensor (in-feed packaging position sensor) 32 ′ is OFF (the frame 3c blocks the in-feed packaging position sensor 32 ′), the platform middle position sensor 74b is ON, and the flat plate 3a is moved to the initial position. Since the infeed drawer lamp is lit and the position detection sensor (infeed initial position sensor) 32 is turned off, the frame 3c blocks the position detection sensor (infeed initial position sensor) 32. And the in-feed drawer lamp is turned off.

  The transfer means 4 for transferring the base material 12 placed on the flat plate 3a of the guide means 3 onto the mounting base 2a of the base material mounting means 2 is the comb-like flat plate 3a of the guide means 3. The base material 12 on which the article W to be packaged is placed is separated from the flat plate 3a when the base material placing means 2 is advanced and slid to the position immediately above the platform 2a and then retracted to the initial position. 4, a comb-like (nested) shutter 27 that meshes with the comb-teeth shape of the flat plate 3a, and a transfer position in which the shutter 27 protrudes above the flat plate 3a from a retracted position below the flat plate 3a. And a moving mechanism for vertically moving.

The shutter 27 is formed in a comb-teeth shape (nested shape) that meshes with the comb-shaped flat plate 3a of the guiding means 3, and the projecting piece portion 27a that meshes with the groove of the flat plate 3a as shown in the figure. It is not limited to the form in which all of them are formed and may be formed so as to partially engage with each other. In this case, it is only necessary that the rear edge of the base material 12 abuts the front surface of the projecting piece 27a and only the flat plate 3a can be pulled out and retracted regardless of the size of the base material 12.
Further, the installation position of the shutter 27 is a position on the rear side (relative to the advancing direction of the flat plate 3a) from the position of the positioning protruding piece 25 when the flat plate 3a of the guiding means 3 is advanced. The rear edge of the base material 12 placed in contact with the front surface of 25 is released from the contact with the positioning protrusion 25 by the retreat of the flat plate 3a and switched to the contact with the protrusion 27a. (See FIG. 5B and FIG. 9B).

The moving mechanism that moves up and down the shutter 27 is configured to operate in conjunction with the moving means 9 that moves the platform 2a up and down in the base material mounting means 2.
Specifically, as shown in FIGS. 1 and 2, both sides of the shutter 27 in the width direction are projected outwardly through the guide grooves 28 formed in the pair of left and right machine frames 16 standing on the base 1. The projecting end portion is connected to an elevating member 29 attached to the outside of the machine casing 16 so as to be movable up and down. The elevating member 29 is formed with a receiving portion 30 that abuts against the pressing piece 15 ′ fixed to the sliding body 15 of the moving means 9, and the elevating member 29 is urged upward by a spring 31. .

With the above configuration, when the mounting base 2a of the base material mounting means 2 is located at the lower limit position, the pressing piece 15 'fixed to the sliding body 15 of the moving means 9 is pressed against the receiving portion 30 of the elevating member 29, Thus, the elevating member 29 compresses the spring 31 and is pushed downward, and the shutter 27 attached to the elevating member 29 is positioned at the lowest side of the guide groove 28 and is retracted below the flat plate 3a of the guide means 3. Held in position. Accordingly, the flat plate 3a can be moved forward by placing the base material 12 on the base 2a of the base material mounting means 2 (see FIGS. 5A and 9A).
When the flat plate 3a of the guide means 3 is slid forward along the guide frame 3b from the initial position and is located at a position (packaging position) directly above the platform 2a of the base material mounting means 2, the position detection sensor The moving means 9 is activated by the detection signal 32 ′, and the sliding body 15 is raised along the guide column 14. Accordingly, the elevating member 29 urged by the spring 31 in the direction in contact with the pressing piece 15 ′ of the sliding body 15 is pushed upward following the sliding body 15 and is fixed to the elevating member 29. Moves upward in the guide groove 28, and the protrusion 27a of the shutter 27 is located behind the position of the positioning protrusion 25 of the flat plate 3a (behind the rear edge of the base material) and between the comb teeth of the flat plate. And is located in the vicinity of the front edge of the platform 2a of the raised base material mounting means 2 (see FIGS. 5B and 9B).

  Further, the moving means 9 is activated when the flat plate 3a of the guide means 3 is slid to the packaging position, and the platform 2a of the base material mounting means 2 is in a position almost directly below to receive the base material 12 from the flat plate 3a. Wait for movement. As a result, when the flat plate 3a is pulled back (retracted) to the initial position by the handle 26, the rear end edge of the base material 12 that is in contact with the front surface of the positioning projection piece 25 of the flat plate 3a is released by the retreat of the flat plate 3a. The base material 12 is pulled away from the flat plate 3a and transferred to the upper surface of the base 2a of the base material mounting means 2 (see FIGS. 6A and 6B). . When the flat plate 3a is returned to the initial position, the nesting state between the projecting piece 27a of the shutter 27 and the flat plate 3a is released, and accordingly the shutter 27 is pushed upward by the elastic force of the spring 31. The shutter sensor 80 that detects that the shutter that is in a state of blocking the forward movement of 3a is located at the position is turned on. That is, it prevents the next article to be packaged from being erroneously supplied during packaging (see FIG. 6B).

  As shown in FIGS. 1 and 2, a film roll placement unit 5 for feeding out a film to be placed on the base material 12 transferred to the mounting base 2 a of the base material mounting means 2 is a machine that stands up and fixes on the base 1. A film feed means 7 arranged on a receiving base 75 laid on the frame 16, and under the film roll placement section 5, for pulling out the film 6 a from the film roll 6 set in the film roll placement section 5, and the film feed A holding means 8 for horizontally stretching and holding the film 6a drawn out by the means 7, and a heater for thermally welding the film 6a abutted on the base material 12 by raising the base material mounting means 2 to the base material 12 Part 10 is installed.

  The film roll placement section 5 is mounted so that a rotating roller 35 can rotate on two supports 34 and 34 ′ installed at a predetermined interval between a pair of side plates 33 erected and fixed on a pedestal 75. The film roll 6 is slidably mounted on the two rotating rollers 35. In addition, the support structure of the film roll 6 in the film roll arrangement | positioning part 5 is not restricted to the support structure by the rotating roller 35 of illustration, The general support structure supported through a shaft in the center hole of the film roll 6 may be sufficient.

Further, a shaft 36 is installed between the side plates 33 so as to be positioned below the film roll arrangement portion 5, and a guide roller 37 for guiding the film 6 a connected to the film roll 6 in the pulling direction is electromagnetically attached to the shaft 36. It is attached via a brake (not shown). That is, when the film tip clamp portion 45 of the film feed means 7 grips the film and feeds the film, the guide roller 37 and the electromagnetic brake are turned off, the guide roller 37 is rotated, and the film is fed. Further, when the film leading end clamp unit 45 proceeds to grip the standby film, the electromagnetic brake is turned on and the guide roller 37 does not rotate.
Further, as shown in FIG. 2, toothed pulleys 39 and 40 are fixed to the shaft end of a shaft 38 rotatably mounted on the shaft end of the shaft 36 and the opposite end of the cradle 32, respectively. The toothed belt 41 is wound around the toothed pulleys 39 and 40, and the shaft 38 is rotated using the rotation of a film feed motor (for example, a stepping motor) 46c of the film feed means 7. It has become.
The toothed belt 41 is connected to a film leading end clamp portion 45 of a film feed means 7 which will be described later, so that the film leading end clamp portion 45 reciprocates as the toothed belt 41 rotates forward and backward.

Further, an intermediate guide roller 42 is rotatably supported across the side plate 33 between the guide roller 37 and the film roll arrangement portion 5, and the tip of the film 6 a is attached to the shaft that supports the intermediate guide roller 42. A guide plate 43 that is wound around the circumferential surface of the guide roller 37 and protrudes forward from the lower surface of the guide roller to be in an initial set state is rotatably attached.
The guide plate 43 is formed in a substantially L-shaped side surface, and the horizontal piece 43a bent at a substantially right angle enters the lower side of the guide roller 37 by the rotation of the guide plate 43, and the tip of the horizontal piece 43a. Is configured to protrude horizontally forward from the guide roller 37.
On the upper surface of the horizontal piece 43a, a film support plate 44 made of an elastic member that supports the front end of the film from below is projected horizontally with the front end facing forward from the horizontal piece 43a. As a result, the leading end side of the film support plate 44 protruding from the horizontal piece 43a of the guide plate 43 is freely bent in the vertical direction, and the film leading end is securely clamped by the film leading end clamping portion 45 of the film feed means 7 described later. Is called. That is, the guide plate 43 sets the leading end of the film connected to the film roll 6 in the initial setting state, and at the same time, supports the leading end of the film from below so that the film tip clamp portion 45 can be stably attached. (See FIG. 14).

The film feed means 7 that holds the tip of the film 6a supported horizontally on the upper surface of the film support plate 44 and draws the film 6a along the lower surface of the holding means 8 and the heater unit 10 holds the tip of the film 6a. The film front end clamp unit 45 and a drive unit 46 that reciprocates the film front end clamp unit 45 along the holding unit 8 and the heater unit 10 are configured.
As shown in FIG. 14, the film front end clamp portion 45 has a movable lower plate 45b pivotally supported by a shaft 45c on the lower side of the fixed upper plate 45a and a fixed upper plate 45a at a rear position from the shaft 45c. A spring 45d is elastically mounted over the movable lower plate 45b. Thereby, the front end side of the movable lower plate 45b is pressed against the lower surface of the fixed upper plate 45a so that the film 6a can be attached. In addition, an elastic body (for example, urethane foam) may be bonded and fixed to the upper surface of the movable lower plate 45b so that the film can be more securely attached by the fixed upper plate 45a and the movable lower plate 45b. In that case, the elastic body may be attached over the entire width in the width direction of the movable lower plate 45b so that the entire width in the width direction of the film 6a can be attached.

Further, a guide roller for forcibly opening the movable lower plate 45b closed by the elastic force of the spring 45d on the side surface of the movable lower plate 45b on the front end side (the side where the front end of the film is attached). 47 is attached. A guide inclined plate 48 that guides the guide roller 47 downward with respect to the horizontal line is disposed on the side surface of the side plate 33 where the vicinity of the tip of the film support plate 44 is located.
The inclined guide plate 48 moves forward along the lower surfaces of the holding means 8 and the heater unit 10 so that the film front end clamp portion 45 clamps the front end of the film 6a, and is closed at a position before the end of the forward movement. The movable lower plate 45b is forcibly opened against the elastic force of the spring 45d. The guide roller 47 attached to the outer surface of the movable lower plate 45b in the closed state is forwardly moved to a position in front of a horizontal line on a line passing therethrough. When the guide roller 47 comes into contact with the guide inclined plate 48 and continues to move forward, the tip side of the movable lower plate 45b (the side on which the film is attached) opens downward about the shaft 45c. The film 6a is positioned below the film support plate 44 and closed by the elastic force of the spring 45d after passing through the guide inclined plate 48, and the fixed upper plate 45a positioned above the film support plate 44. The front portion of the fine film support plate 44 挾着 (see FIG. 14 (a), (b)).

  As shown in FIG. 14 (c), the guide inclined plate 48 is fixed in an inclined state in the direction in which the guide roller 47 abuts forward, and the guide roller 47 is guided along the lower surface of the guide inclined plate 48 and passes therethrough. After (after the film leading edge is attached), when the film leading edge clamp portion 45 is switched back (retracted) and passes the upper surface side of the guiding inclined plate 48, the inclined plate 48 does not hinder the movement of the guide roller 47. Of the tension coil spring so that the inclined guide inclined plate 48 returns to the initial state (the inclined state that guides the guide roller 47 downward in the traveling direction) after passing through the guide roller 47. It is pulled by the spring 48a.

As shown in FIGS. 1 and 2, the driving unit 46 for reciprocating the film front end clamping unit 45 includes guide shafts 46a and 46'a arranged from the front end to the rear end on the left and right side surfaces of the receiving base 75, and Sliding frames 46b and 46'b that are slidably attached to the guide shafts 46a and 46'a, a toothed belt 41 that is rotatably disposed outside the receiving base 32, and drives the toothed belt 41. The sliding frame 46b, 46'b is connected to the lower side (return path side) of the toothed belt 41. Then, both side portions of the fixed upper plate 45a of the film tip clamp portion 45 are connected and fixed to the lower surfaces of the left and right sliding frames 46b and 46'b.
As a result, the film feed motor 46c (for example, a stepping motor) is driven to rotate, whereby the toothed belt 41 is rotated. By the rotation of the toothed belt 41, the sliding frames 46b and 46'b are moved to the guide shaft 46a. , 46'a, and the film end clamp 45 connected to the sliding frames 46b, 46'b also slides. During forward movement (forward movement), the leading edge of the film 6a is clamped by the opening / closing operation of the film leading edge clamp section 45, and during backward movement (backward movement), the film leading edge clamp section 45 moves backward while holding the leading edge of the film 6a. The amount of film (length) required for packaging can be withdrawn. The length of the film pulled out by the film feed means 7 is determined by the size of the base material 12 on which the article W to be packaged is placed. The size of the base material 12 is determined by the base material 12 on the platform 2 a of the base material mounting means 2. When it is placed, it is detected by the detecting means 69 and controlled based on the detection information. The detection means 69 will be described later.

In addition, the film leading end portion of the film feed means 7 pulled out by the operation of the driving portion 46 is still held by the film leading end clamp portion 45. In order to thermally weld the film 6a to the base material 12 and take out the packaged product, it is necessary to release the adhesion by the film end clamp portion 45. The release mechanism 49 is arranged on the side opposite to the side on which the guide inclined plate 48 is attached.
As shown in FIG. 15, the release mechanism 49 includes a roller 49a attached to the tip side opposite to the side to which the guide roller 47 is attached in the movable lower plate 45b of the film tip clamp portion 45, and via the roller 49a. An operating plate 49b that opens the movable lower plate 45b downward, an electromagnetic solenoid 49c that is a power source that moves the operating plate 49b up and down, an initial position sensor 49d that controls ON / OFF of the electromagnetic solenoid 49c, and an end point position sensor 49e. And a flag 49f provided on the sliding frame 46'b.
The actuating plate 49b is a strip having a substantially L-shaped cross section, and one end in the longitudinal direction thereof is pivotally supported on the side plate 33 so as to be vertically rotatable by a shaft 50, and the other end of the actuating plate 49b is a plunger of an electromagnetic solenoid 49c. It is connected.

  The position where the electromagnetic solenoid 49c is operated is determined by the installation positions of the initial position sensor 49d and the end position sensor 49e. The initial position sensor 49d is located near the film support plate 44, and the end position sensor is located near the film drawing end point. 49e is arranged. As a result, after the film feed is finished (when the partition wall 42 ′ is positioned at the second position described later), that is, the film leading end clamp portion 45 holds the leading end of the film and moves backward to remove the set longest film. After the drawing, the flag 49f provided on the sliding frame 46'b blocks the end point position sensor 49e, so that the electromagnetic solenoid 49c is operated, and the plunger is drawn to rotate the operating plate 49b downward. The rotation of the operating plate 49b opens the movable lower plate 45b via the roller 49a, and the film sticking is released. When the partition wall 42 'is positioned at a first position, which will be described later, the film is not fed to the end position sensor 49e, and at the first position, the film is fed with a predetermined number of pulses from the initial position sensor 49d. Since the process ends, a sensor for detecting the end is provided in the same manner as the end point position sensor 49e, and the electromagnetic solenoid 49c can be actuated by the detection of the sensor to release the film sticking. Alternatively, at the first position, the electromagnetic solenoid 49c may be driven after the film feed motor is driven for a predetermined number of pulses from the initial position sensor 49d. Also, a switch for operating the electromagnetic solenoid 49c is provided in either case of the first position or the second position, and the film sticking by the film leading end clamp portion 45 is released by pressing the switch. Good.

The film 6 a having a predetermined length drawn by the operation of the film feed means 7 is stretched and held in a substantially horizontal shape by the holding means 8.
As shown in FIG. 13, the holding means 8 includes a double box frame 50 formed by an outer box 51 and an inner box 52, and an electric fan 53 that generates a suction force in a space formed by the double box frame 50. It consists of and.
The outer box 51 constituting the double box frame 50 is a box body having a rectangular shape in plan view, in which the upper surface and three of the four side walls are closed, and the lower surface and one of the side walls are open. A partition wall 51 ′ is movably disposed in an open portion of the partition wall 51 ′ while maintaining an airtight state.
In addition, a fan mounting hole is formed on the upper surface of the outer box 51, and an electric fan 53 is mounted in the fan mounting hole. By operating the electric fan 53, negative pressure is generated in the double box frame 50. Yes. It should be noted that the mounting position of the electric fan 53 on the upper surface of the outer box 51 is present in an area defined when the movable partition wall 51 ′ is positioned at the initial position (first heat welding area). To.

As shown in FIG. 12, the inner box 52 has box frames 52a and 52b in which three of the upper surface and the four side walls are closed and the lower surface and one side of the side walls are opened. They are fitted face to face and can be extended and contracted. The combined box frames 52a and 52b are fitted in the outer box 51, and one box frame 52a is maintained in a vertical direction while maintaining a certain distance (gap) from the three side walls of the outer box 51. It is supported movably. Further, the other box frame 52b is movable in the vertical direction while maintaining the same gap (gap) as the gap (gap) formed between the outer box 51 and the box frame 52a between the partition wall 51 '. Connected and supported. The support structure will be described later.
The space (gap) defined by the side wall and partition wall 51 ′ of the outer box 51 and the side wall of the inner box 52 (box frames 52a, 52b) is the suction part 8a of the holding means 8 that stretches and holds the film 6a. is there.
Further, a lower end surface of one box frame 52b constituting the inner box 52 is bent outward and upward to form a separation piece (separation means) 54. This separating piece (separating means) 54 lowers a film (heat-welded to the base material) attached to the heater portion when it is projected downward from the lower end surface of the outer box 51 by a downward biasing force by an elastic member described later. It contributes to pressing down and releasing the film from the heater surface.
Since the box frame 52b of the inner box 52 and the partition wall 52 ′ are joined with a certain gap (gap), and the heater unit 10 is attached to the lower end of the partition wall 51 ′, the partition Even if the wall 51 ′ is moved and the box frame 52 b slides and moves from the state of FIG. 12A to the state of FIG. 12B, the movable heater unit 10, the partition wall 51 ′ and the outer box 51 The suction portion 8a formed by the inner box 52 (box frames 52a and 52b) can move the position of the heater portion according to the size of the base material while maintaining the initial positional relationship.
FIG. 12A shows a case where “Small” is selected from among the base material types in the packaging file to be described later, and “1” is read as the information on the partition wall movement, and the partitioning is performed until the flag 60b blocks the sensor 60a. The wall 51 ′ has been moved (first position).
FIG. 12B shows a case where “Large” is selected from the base material types in the packaging file, and “2” is read out as the information on the partition wall movement, and the flag 60′b blocks the sensor 60′a. The partition wall 51 ′ is moved to the second position (second position).

  As shown in FIG. 11, the mechanism for moving the partition wall 51 ′ along the drawing direction of the film 6a includes a side wall along the drawing direction of the film 6a in the outer box 51 and a fixed side plate 55 fixed to the open side wall side. Two ball screw mechanisms 56 are constructed over the span. Specifically, the screw shaft 56a is rotatably mounted over the side wall of the outer box 51 and the fixed side plate 55, and a nut member 56b screwed to the screw shaft 56a is fixed to the partition wall 51 '. To synchronously rotate the screw shafts 56a of the two ball screw mechanisms 56, the toothed pulleys 57a and 57b are fixed to the ends of the screw shafts 56a, and the rotation shafts of the drive motors 58 (for example, stepping motors) are fixed. The driving pulley 58a is fixed, and the toothed belt 59 is wound around the driving pulley 58a and the toothed pulleys 57a and 57b. As a result, when the drive motor 58 is driven, the two screw shafts 56a are rotated via the toothed belt 59, and the partition wall 51 ′ to which the nut member 56b is fixed is moved in the drawing direction of the film 6a. The adsorbing area (width in the film drawing direction) is adjusted to be wide or narrow.

  As shown in FIGS. 11 and 12, the movement control of the partition wall 51 'is configured by attaching a position detecting means 60 across the fixed side plate 55 and the partition wall 51'. Specifically, two sets of position detection sensors 60a and 60'a are attached to the fixed side plate 55, and two types of flags 60b and 60'b are attached to the moving partition wall 51 '. Thereby, when the long flag 60b blocks the position detection sensor 60a, the partition wall 51 'is in the first position, and when the short flag 60'b blocks the position detection sensor 60'a, the partition wall 51' It is detected that it has been moved to the second position.

  Further, the inner box 52 of the double box frame 50 constituting the holding means 8 is supported so as to be movable in the vertical direction with respect to the outer box 51. The supporting structure is as shown in FIG. The bracket 61 is fixed to each of the side wall and the partition wall 51 ′, and on the other hand, a guide rod 62 is erected and fixed to the upper surface of each of the box frames 52 a and 52 b constituting the inner box 52, and the guide rod 62 is attached to the corresponding bracket 61. The guide rod 62 is inserted so as to be movable up and down, and a coil spring (elastic member) 63 is attached to the guide rod 62 so that downward force acts on the box frames 52a and 52b. In the initial state (the state before sucking and holding the film 6 a), the inner box 52 is slightly lower than the lower surface (surface on which the film is thermally welded) of the heater portion attached to the lower end of the outer box 51. When the base material 12 is pressed against the film 6a by raising the base material mounting means 2, the inner box 52 is positioned substantially flush with the lower surface of the heater portion by the external force (film). When the external force is released by the lowering of the base material mounting means 2 upon completion of the heat seal, the coil spring 63 is pushed down to the initial position.

  Further, as shown in FIG. 13, through holes 64 communicating with the inside of the outer box 51 are formed on the left and right side walls along the film width direction of the outer box 51 constituting the suction means 8, and the through holes are provided. A cover 65 that covers 64 in an open state is attached to the outside of the outer box 51 to form an auxiliary suction portion 65a. The auxiliary suction part 65a can reliably hold the film by the action of the auxiliary suction part 65a even when the film 6a drawn from the film roll 6 is pulled out of the film in the width direction.

A heater portion 10 is formed outside the suction portion 8a of the holding means 8 so as to surround the suction portion 8a (see FIGS. 11 and 12).
The heater unit 10 is disposed at the lower end of the outer box 51 of the holding means 8 and the lower end of the partition wall 51 ′ using a resistance wire such as a nichrome wire. In addition, the upper surface side (the side opposite to the surface in contact with the film) of the heater unit 10 is covered with a heat insulating material, and safety measures are taken so as to prevent burns or the like even if fingers are accidentally contacted.
The heater unit 10 is disposed on the lower outer surface of the outer box 51 and the lower outer surface of the partition wall 51 ′ so as to be heat-welded along the four sides of the substantially rectangular base material in plan view. When the heater part 10 corresponding to is divided independently, the corner part where the sides intersect is not thermally welded. In order to eliminate the non-welding of the corner portion, the end portions of the heater portion may be connected with a metal conductor 66 so that the corner portion is also thermally welded.

A cutter 67 for cutting the film 6a drawn by the operation of the film feed means 7 is disposed between the guide roller 37 and the outer box 51 of the holding means 8 provided with the suction part 8a and the heater part 10. ing.
The cutter 67 cuts the film 6a, which is placed on the package W and thermally welded to the periphery of the base material 12, at a position forward of the film support plate 44. The cutter 67 is moved up and down by an electromagnetic solenoid 68 and cut. The leading end of the film 6a connected to the film roll 6 is horizontally supported by the film support plate 44 and waits for the film to be drawn out for the next packaging.

The package W ′ for which the heat seal packaging has been completed by the heater unit 10 is discharged from the platform 2 a of the base material mounting means 2 to the discharge means 11.
The discharge means 11 is arranged at a position almost directly below the guide means 3 that supplies the base material 12 on which the article W to be packaged is placed to the mounting base 2a of the base material mounting means 2, and the package W that has completed heat-sealing packaging. 'Is received from the platform 2a of the base material placing means 2 and discharged out of the apparatus. Specifically, the flat metal plate 11a having a substantially rectangular shape in plan view is curved and formed in a slope shape, and the metal flat plate 11a is positioned forward (on the front side of the apparatus) from the lower limit position of the mounting base 2a of the base material mounting means 2. The slope is arranged so as to be substantially continuous with the inclination of the platform 2a. As a result, the package W ′ is discharged to the discharge means 11 by gravity due to the inclination of the mounting base 2a of the base material mounting means 2, slipped down by gravity by the slope of the discharge means 11, and automatically discharged outside the apparatus. The

The metal flat plate 11a is provided with a product discharge sensor 72 for detecting a package W ′ slidably discharged on the metal flat plate 11a.
The product discharge sensor 72 is configured by opening a window hole 72a in the upper part of the slope of the metal flat plate 11a and arranging a detection sensor 72b on the back side of the metal flat plate 11a facing the window hole 72a.
The detection sensor 72b is a reflection type sensor. If light is projected into the window hole 72a of the metal flat plate 11a, and the light is reflected by the package W ′ and received by the detection sensor 72b, the package W ′ is It has been detected that the base material placing means 2 has been ejected from the platform 2a to the ejection means 11.
The metal flat plate 11a constituting the discharging means 11 has a surface treatment (rib (protrusion) processing for reducing frictional resistance, Teflon (registered trademark) processing, etc.) for promoting sliding of the package W 'on the surface thereof. You may give (refer FIG. 8).

The base material 12 used for heat-sealing packaging is a laminate in which a flat paper base material, a resin base material (for example, a film base material, a foamed resin base material, etc.), a thin wooden base material, or different materials are bonded together. The surface material (resin laminating, coating treatment, etc.) that enables thermal welding is applied to the material that is difficult to thermally weld the film. This surface treatment should have a slightly lower melting point than the film 6a used for packaging, and the central portion may not be subjected to surface treatment. That is, the surface treatment may not be performed on the portion where the article W is placed. The surface of the base material 12 may be plain (white), but the product may be made conspicuous by using a colored or printed pattern according to the product to be placed.
The base material 12 may have some unevenness on the upper surface. For example, a convex portion is provided at the position of the upper surface of the base material corresponding to the heater portion 10, and the convex portion and the heater portion 10 are in contact with each other with the film 6a interposed therebetween, so that the sealing property (thermal welding) of the film 6a is enhanced. It may be.

The base material 12 is selected and used in a plurality of types having different sizes (length dimensions along the film drawing direction) depending on the size of the article W to be packaged. Whether it is of a size is detected by the detection means 69. In the embodiment described below, detection of two types of sizes “large” and “small” will be described.
As shown in FIGS. 7A and 7B, the detecting means 69 for detecting “large” and “small” of the size of the base material 12 (the length dimension along the film drawing direction) is the above-mentioned base material. The “large” size detection through hole 70a, the “small” size detection through hole 70b formed through the support surface of the mounting base 2a of the mounting means 2 and the “large” size detection through hole. Detection sensors 71a and 71b arranged diagonally opposite to the machine frame 16 across the hole 70a, detection sensors 71′a arranged diagonally opposed to the machine frame 16 across the “small” size detection through hole 70b, 71'b.
The detection sensors 71a, 71b, 71′a, 71′b are sensors composed of a projector and a light receiver. When neither light of the projector is received by the light receiver, the detection through holes 70a, 70b are both base materials. It is determined that the “large” size base material 12 is placed, the light of the detection sensor 71a is detected by the detection sensor 71b, and the light of the detection sensor 71′a is detected by the detection sensor 71′b. If it is not detected in step (b), it is determined that only the detection through hole 70b is covered with the base material, and the “small” size base material 12 is placed. Since the detection sensor is attached to the vertical surface of the machine casing 16, the light projecting surface and the light receiving surface of the sensor are also close to a substantially vertical surface. As a result, dust and the like adhere to the light projecting surface and the light receiving surface. It is difficult to prevent erroneous detection.

  As shown in FIG. 16, the above-described heat seal packaging apparatus operates in a RAM 75, ROM 77, film feed motor 46c, film via a bus 75 'to a CPU 75 that controls each block, as shown in FIG. Release solenoid (electromagnetic solenoid) 49c, initial position sensor 49d, end point position sensor 49e, heater unit 10, fan 53, display unit 78, heater position drive motor 58, film cut solenoid (electromagnetic solenoid) 68, platform drive motor 23, Position detection sensors 60a and 60'a, product discharge sensor (detection sensor) 72b, product size detection sensors (small) 71'a and 71'b, product size detection sensors (large) 71a and 71b, position under the platform Sensor 74a, platform middle position sensor 74b, platform top position sensor 74c, infeed Period position sensor 32, the infeed wrapping position sensor 32 ', the infeed insert lamp 79a, the infeed drawer lamp 79b, etc. are connected.

The RAM 76 has a plurality of storage areas, and stores a packaging file (see FIG. 17) that stores information on the film feed amount and partition wall movement for each base material having a different size used for packaging. The base material type “small” defines information “1” that defines the film feed amount, the partition material movement information “1”, and the base material type “large” defines the film feed amount. Information “2” to be stored, and information “2” defining the movement of the partition wall are stored.
When the size “small” or “large” of the base material 12 is detected by the product size detection sensors 71′a, 71′b, 71a, 71b, the information for defining the film feed amount and the movement of the partition wall are moved. Information to be defined is specified and temporarily stored in a predetermined area of the RAM.
A film feed motor (for example, a stepping motor) 46c moves the film tip clamp portion 45 of the film feed means 7 in the film drawing direction. The film tip clamp portion 45 is moved depending on the size of the base material 12 to be used. The distance moved is variable. The change of the moving distance is, for example, the position of the partition wall (either the first position or the second position) that determines the heat welding region for each base material 12 of the packaging file is set. The position of the partition wall is determined by the size of the material 12 being detected by the product size detection sensors (small) 71'a, 71'b or the product size detection sensors (large) 71a, 71b, and the film is The driving of the film feed motor 46c to be pulled out is also controlled.

Regarding the film feed motor 46c, when the partition wall 51 'is in the first position, the film feed motor 46c is moved by a predetermined number of pulses from the initial position sensor 49d to a position where extra film is not generated at that position. When the partition wall 51 'is in the second position, the film feed motor 46c rotates to the end point position sensor 49e, which is a position at which the film can be wrapped without any excess film.
The film release solenoid 49c is a solenoid that operates a release mechanism 49 that releases the nipping of the film front end clamp portion 45 that nipping and pulling out the front end of the film. The solenoid is turned on / off by the initial position sensor 49d and the end point position sensor 49e. Controlled by signal.
The heater position drive motor 58 is a motor that operates a ball screw mechanism that moves the partition wall 51 ′ of the holding means 8, and the movement is controlled by the data (first position or first position) set in the product file as described above. 2).

  The platform drive motor 23 is a motor that operates a moving mechanism that moves the platform 2a of the base material placing means 2 up and down, and includes a lower position sensor 74a, a middle position sensor 74b, and an upper position sensor that detect the position of the platform 2a. ON / OFF is controlled by the detection signal of 74c and the detection signal of the infeed initial position sensor 32 and the infeed packaging position sensor 32 'for detecting the position of the flat plate 3a of the guide means 3.

Next, the flow of the packaging operation of the heat seal packaging apparatus described above will be described based on the flowchart of FIG.
ST1: The base material 12 on which the article to be packaged W is placed is placed on the flat plate 3a of the guide means 3. At this time, the mounting base position sensor 74a is ON (positioned at the initial position), and the product discharge sensor 72b.
Is OFF (the package W ′ does not exist in the discharge means), the infeed initial position sensor 3
2. Of the infeed packaging position sensor 32 ', the infeed initial position sensor 3
Since only 2 is blocked by the frame 3c, the in-feed initial position sensor 32
It is confirmed that only the frame is off (the frame 3c holding the flat plate 3a is located at the initial position) (see FIGS. 5A and 9A).
When the conditions of the three sensors ST2... ST1 are met, only the flat plate 3a can be inserted into the apparatus, so that the infeed insertion lamp 79a is turned on.
ST3 ... The flat plate 3a is inserted into a predetermined position inside the apparatus and stopped. At this time, the infeed packaging position sensor 32 'is OFF and the infeed initial position sensor 32 is ON. That is, the state shown in FIG. 5B is established, and only the in-feed packaging position sensor 32 ′ is blocked by the frame 3c and turned off. The infeed insertion lamp 79
a is turned off.
ST4... The film feed means 7 is actuated to feed the first stage (the length corresponding to the base material size “small”).
ST5 ... The platform 2a of the base material placing means 2 is raised by the moving means, and the elevation is stopped by the detection (ON) of the platform middle position sensor 74b. This stop position is the flat plate 3a.
Is a position almost directly below a predetermined position (packaging position) where insertion stops. Then, the shutter 27 of the transfer means 4 is raised in conjunction with the ascent of the platform 2a, and the comb-like protrusions 27a of the shutter 27 protrude upward from the comb-like gaps of the flat plate 3a ( FIG.
)reference). The infeed drawer lamp 79b is turned on to indicate that the flat plate 3a can be returned to the initial position depending on the condition that the infeed packaging position sensor 32 'is OFF and the platform position sensor 74b is ON.

ST6: The flat plate 3a is pulled out from the packaging position toward the initial position, and the base material 12 on which the article W to be packaged placed on the flat plate 3a is placed is transferred to the mounting table 2a.
When the base material 12 is transferred, the front end (rear end) of the base material 12 comes into contact with the protruding piece 27a of the shutter 27 and is separated from the flat plate 3a by pulling out the flat plate 3a.
By pulling out the base material 12, the base material 12 is transferred to the platform 2a immediately below (see FIG. 6A).
.
ST7: The flat plate 3a is pulled back to the initial position and stopped (see FIG. 6B). As a result, the infeed initial position sensor 32 is blocked by the frame 3c and turned off, the infeed packaging position sensor 32 'is turned on, and the infeed drawer lamp 79b is turned off.
ST8... The detecting means 69 detects whether the size of the base material 12 transferred onto the mounting table 2a is “small”. The detection of the size of the base material 12 is performed by placing the base 2a on which the base material 12 is mounted.
This is determined by detecting the form in which the detection through holes 70a and 70b formed on the support surface are closed by the base material. When both the detection through holes 70a and 70b are blocked by the base material 12, it is determined that the size is “large”, and when only the detection through hole 70a is blocked, the size is “small” (FIG. 7 (a ) And (b)). If the determination result of the detection means 69 is YES (size “small”), the process proceeds to ST9, and if the determination result is NO (size “large”), the process proceeds to ST10.
ST9: Since the size of the base material 12 is “small”, the film is cut with the film length (first stage) drawn in ST4 in accordance with the film cut length “1” relating to the film feed amount set in the packaging file. Suction the cut film with suction means 8,
It is stretched and held substantially horizontally on the lower surface of the suction means 8. For the suction, the electric fan 53 of the suction means 8 is rotated to make the inside of the double box frame 50 have a negative pressure, and a suction force is applied to the suction portion 8 a formed by the outer box 51, the partition wall 51 ′ and the inner box 52. The side edges in the width direction of the film 6a and the front and rear edges in the pull-out direction are attracted. At this time, the partition wall 51 ′ of the suction means 8 is positioned at the “first position” set in the packaging file (see FIG. 12A). In the embodiment, two types of film cut lengths “1” and “2” are shown, and the film cut length “1” is the initial position sensor 49d.
The position of the number of pulses set in advance and the film cut length “2” indicate the position of the end point position sensor 49e.
ST10: Since the size of the base material 12 is “large”, the film set in the packaging file
The film cut length related to the feed amount is “2”, and the film feed means
7 is operated and the length corresponding to the film cut length “2” is pulled out. Film
The feed means stops at the position of the end point position sensor 49e with the film cut length “2”.
It is.

ST11 ... Based on the information (size "large") of the detection means 69, the partition wall of the suction means 8
51 'is moved to the "second position" set in the packaging film. Thereby
The area defined by the suction portion 8a is expanded to match the film drawing direction.
The corresponding heater section also moves (see FIG. 12B).
ST12 ... It is determined by the shutter sensor 80 whether the shutter 27 is ON. Shatter
The turn-on protrudes upward so as to block the forward movement of the flat plate 3a of the guide means 3 returned to the initial position.
In the state of taking out, the supply of the next base material is blocked. If the result is YES
Goes to ST13, and if NO, repeats until YES is confirmed
.
ST13 ... The platform 2a on which the base material is mounted is raised by the operation of the moving means. Stop the climb
The flag 73 attached to the sliding body 15 blocks the upper position sensor 74c so that the shift is performed.
The operation of the platform drive motor 23 of the moving means is stopped (see FIG. 10A). still
The rise and stop of the platform 2a is caused by the surface of the base material 12 mounted on the platform 2a being absorbed.
This is a position where the film is pressed against the periphery of the film stretched and held on the lower surface of the pulling means 8.
ST14 ... The base material 12 is positioned below the film 6a stretched and held on the lower surface of the suction means 8.
It is pressed for a predetermined time and heat sealed (thermal welding).
ST15 ... The stage 2a on which the package W 'that has been heat-sealed is placed is operated by the moving means.
To start descent toward the initial position.
ST16 ... As the platform 2a is lowered, the forward movement of the flat plate 3a located at the initial position is blocked.
Lower the shutter 27 of the transfer means 4 from the position of ST12 below the sliding path of the flat plate 3a.
Push it down. That is, the shutter sensor 80 is turned off.

ST17 ... Since the shutter sensor 80 is OFF in ST16, the protruding piece 27a
Since it is pushed down from the sliding path of the flat plate 3a as described above,
Since the piece 27a does not interfere, the next packaging becomes possible, and in ST7
Since the infeed initial position sensor 32 is OFF, the guide means 3 is flat.
An infeed insertion lamp 79a indicating that the plate 3a can slide is turned on.
ST18 ... The platform 2a on which the package W 'is mounted descends to the lower limit position, and the sliding body flag is placed.
The bottom position sensor 74a is blocked and the operation of the platform drive motor 23 is stopped.
Stopped. The lowering of the platform 2a is caused by removing the base material from the flat plate 3a of the guide means 3.
After passing through the receiving intermediate position, it is leveled by contact with the tilting auxiliary member provided on the base
It is converted into a posture inclined forward from the state to the discharging means side and lowered.
ST19 ... The package W 'is discharged to the discharge means 11 by the forward tilt of the mounting table 2a. And
Since the commodity discharge sensor 72 is disposed in the discharge means 11, the package W
'Is detected by the sensor and turned ON, and after passing the sensor or the package is the discharge means 11
It is turned off when it is removed. In the illustrated embodiment, the discharging means is the front.
Because it is formed into a slope that continues to the forward tilt of the table, the package W '
By the descending of 2a, it is discharged onto the discharging means by gravity (see FIG. 10B).
ST20 ... It is determined whether the in-feed packaging position sensor 32 'is ON. If yes
That is, when the flat plate 3a on which the base material is placed has already been inserted into the packaging position inside the apparatus.
Return to ST4 and repeat the packaging operation. The flat plate 3a is inserted after ST17.
If possible, for example, at the same time as the removal of the package W ′ or the package W ′
It may be any before taking out. In the case of NO, that is, the flat plate 3a is located at the initial position.
If there is no supply of the object to be packed next, the packaging operation is terminated.

  In the heat seal packaging apparatus according to the present invention, the size of the base material is any one of a plurality of sizes set in advance by supplying an article to be packaged (base material + product) to the mounting base with the above configuration. The film length required for packaging is pulled out and the heater part is moved based on the detected information, and heat sealing packaging according to the size of the base material can be performed reliably. In addition, the initial position for supplying the package to the platform and the discharge part for discharging the heat-sealed package are set at different positions, so that the platform can carry the heat-sealed package. After passing through the intermediate position (position where the article to be packaged is transferred from the guide means to the platform), the next article to be packaged can be placed on the flat plate of the guide means and inserted to the transfer position. Accordingly, a part of the packaging cycle of the next product can be overlapped in the middle of the previous packaging cycle without waiting for the completion of one packaging cycle. Therefore, the number of packages per unit time can be increased and work efficiency can be improved.

The heat seal packaging apparatus of the present invention is not limited to the illustrated embodiment, and can be appropriately changed without changing the gist of the present invention.
(1) In the embodiment, the film drawn out from the film roll is stretched and held by the holding means, and the base material on which the package is placed is pushed up from below and heat sealed (thermal welding) is shown. However, conversely, it is also possible to use a device for fixing the mounting base of the base material mounting means and lowering the frame of the holding means (equipped with a heater portion) on which the film is stretched and held for heat sealing.
(2) In the embodiment, two types of sizes of the base material are described, “large” and “small”, but the size of the base material is not limited to two types, and may be three types or four types. Accordingly, the partition wall of the suction means is also moved in a plurality of stages.
(3) In the embodiment, the structure for determining the size detection of the base material based on whether or not the detection through hole for each size opened on the mounting base is closed by the base material has been described, but is not limited thereto. For example, an imaging means such as a camera may be used.
(4) In the embodiment, the example in which the size of the base material is detected and the change of the film feed amount and the movement of the heater unit (partition wall) are controlled based on the detected information has been described. For example, by selecting the size “large” or “small” of the base material type set in the packaging file, the film feed amount and the movement of the heater part (partition wall) based on the setting of the packaging file The data related to may be automatically selected and controlled.
Further, instead of detecting the size of the base material, the movement of the partition wall and the film feed amount may be controlled by detecting the size of the object to be packaged placed on the base material.
In other words, a pair of sensors for detecting the size of an object to be packaged on the base material are provided in a plurality of rows in the front-rear direction as seen from the position where the operator stands for packaging, and the movement of the partition wall depends on which sensor is detected. The amount of film feed may be controlled. Usually, a large base material is used for a large package, and a small base material is often used for a small package. Therefore, the size of the base material is determined based on the size of the package. be able to. As a result, the operator simply puts the base material on the base material mounting portion 2 so that the correct amount of film feed is performed and heat sealing is performed correctly.
(5) In the flowchart of the embodiment, the example in which the electric fan of the holding unit is rotated after the film feeding in ST9 and the electric fan is rotated only when the film is sucked is shown. You may make it rotate. Thereby, since a constant suction force is always generated, the film can be reliably sucked.
(6) In the embodiment, the description has been made by using the lighting and extinguishing of the lamp to indicate a state in which the flat plate 3a can be inserted into the apparatus or pulled back from the apparatus to the initial position. A display unit that can display character information is provided. For example, if the flat plate 3a can be inserted into the apparatus, it can be “wrapped”, and if it can be pulled back to the initial position, “return infeed”. This may be indicated by the character information.
(7) In the embodiment, the projecting piece portion is shown as an example projecting from the lower side of the guiding means. However, the projecting piece portion projects from the upper side, and is in contact with both the front package and the base material when carrying into the apparatus. It may be a protruding piece.
(8) In the embodiment, the guide means has been moved manually. However, the guide means may be driven and moved by a motor.
(9) In the embodiment, an example is shown in which the projecting piece projects into the movement path of the guide means in accordance with the upward movement of the base material mounting means, but the guide means is positioned directly above the base material mounting means. When it is detected by the infeed packaging position sensor, the projecting piece protrudes on the moving path of the guide means, and the guide means is determined to be located at the initial position by the infeed initial position sensor. In addition, the protruding piece portion may be hidden from the moving path.
(10) In the embodiment, the example in which the discharge direction of the package is the front side of the apparatus is shown, but it is not limited to the front side of the apparatus, and may be the rear or the left and right direction.
(11) In the heat-sealing packaging apparatus using a flat base material, in the embodiment, the packaging form in which the packaging material is supplied in a pull-out manner as an example where the delivery position of the packaging material is different from the discharge position of the packaging material. Although shown, it is not limited to this, For example, it is good also as a packaging form which supplies a to-be-packaged object by a rotary table system. That is, a plurality of placing parts for placing an article to be packaged are arranged on the circumference of the rotary table, and a carry-in part and a heat station are provided at opposite positions (for example, on the diameter line) on the moving path in which the placing part rotates. When an article to be packaged is supplied to the loading part at the carry-in part, and the loading part on which the article to be packaged is rotated and moved to the heat station, an empty loading part is positioned at the carry-in part and the next article to be packaged is supplied. To be. Then, the package that has been packaged in the heat station is discharged from the loading unit during the rotational movement to the carry-in unit. This makes it possible to shorten the packaging cycle.

A ... Heat-sealing packaging device W ... Packaged object W '... Heat-sealed package 2 ... Base material loading means
3 ... Guide means 3a ... Plate
4 ... Transfer means 5 ... Film roll arrangement part
6 ... Film roll 6a ... Film
7 ... Film feed means 8 ... Holding means
DESCRIPTION OF SYMBOLS 9 ... Moving means 10 ... Heater part 11 ... Discharge means

Claims (8)

In a heat seal packaging device that wraps an article to be wrapped with a film drawn from a film roll,
A carry-in section for placing the base material in order to carry the base material on which an article is packaged into a heat station in the apparatus;
A heater section for heat-welding the film around the package covered with the film and the base material;
A heater receiving portion corresponding to the heater portion;
A discharge unit provided at a position different from the carry-in unit for discharging the package heat-sealed by the heater unit and the heater receiving unit;
A heat seal packaging apparatus comprising: In a heat-sealing packaging device that wraps an article to be packaged with a film drawn from a film roll by film feed means,
A carry-in section for placing the base material in order to carry the base material on which an article to be packaged is placed into a heat station in the apparatus;
A base material mounting means for supporting and supporting the base material on which the article to be packaged is placed;
A guide means for supplying the base material placed on the carry-in section directly above the base material placing means;
Transfer means for replacing the base material on the guide means with the base material mounting means;
Covering means for covering the article to be packaged on the base material with the film drawn out by the film feed means,
A heater section for thermally welding the periphery of the film covering the package and the base material;
A heater receiving portion corresponding to the heater portion;
A package in which the film and the base material are heat-welded, and a discharge unit provided at a location different from the carry-in unit for discharging out of the apparatus,
The guide means is movable between an initial position placed on the carry-in portion and an upper position of the base material placing means in order to replace the placed base material with the base material placing means. A heat seal packaging device characterized by the above.   3. The heat seal packaging apparatus according to claim 2, wherein the guide means is a drawer system having the carry-in portion for receiving a base material.   The transfer means includes a projecting piece portion that comes into contact with a rear end edge portion in the guide direction of the base material placed on the guide means into the apparatus and protrudes and descends in the movement path of the guide means. The projecting piece projecting into the moving path of the guide means in the initial position returning operation and the rear edge of the base material abut, and the base material is transferred onto the base material mounting means. The heat seal packaging apparatus according to claim 3.   5. The heat seal packaging apparatus according to claim 4, wherein the placing portion of the guiding means and the protruding piece portion of the transferring means are nested. Detection means for detecting the size of the base material mounted on the base material mounting means;
Film feed amount changing means for controlling the feed amount of the film feed means based on the detection information of the detection means;
Heater part moving means for changing the size of the heater part based on detection information of the detection means;
The heat seal packaging device according to any one of claims 2 to 5, characterized by comprising:   The detection means comprises a detection through hole for each size formed through the support surface of the base material mounting means and a detection sensor disposed diagonally opposite to the machine frame across the through hole. The heat seal packaging apparatus according to claim 6.   3. The heat seal packaging apparatus according to claim 2, wherein the base material mounting means changes the posture from a horizontal state to an inclined state at the final stage of the descending operation, and discharges the package to the discharge means by gravity. .

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