JP5686976B2 - Bag making apparatus and pillow packaging machine provided with the same - Google Patents

Description

The present invention relates to a bag-making apparatus and pillow packaging machine equipped with it, in particular, to an apparatus used for manufacturing a sealed pouch, such as with the product oxygen absorber (AGELESS (R)) package.

  As is well known, a pillow packaging machine continuously feeds a belt-shaped film wound up on a roll of raw material to a bag making machine, and is made into a cylindrical shape when passing through the bag making machine. . And a cylindrical film is formed by sealing the film superposition | polymerization end which was bag-formed and overlapped cylindrically through the bag making machine with the center seal apparatus arrange | positioned in the downstream of a bag making machine. In addition, a product transport / supply device is arranged on the upstream side of the bag making device, and products transported from the product transport / supply device at predetermined intervals are supplied into the bag making device. As a result, when the product passes through the bag making machine, the product is stored in the cylindrical film at predetermined intervals, and the product is conveyed together with the cylindrical film. And the package which encloses a product is manufactured by sealing and cutting so that a cylindrical film may be crossed to a horizontal direction every predetermined space | interval with the end seal apparatus arrange | positioned at the carrying-out side of a pillow packaging machine. .

  By the way, when the product is a food, a small bag such as an oxygen scavenger is enclosed in the package together with the product in order to maintain the quality. In order to manufacture such a package, the sachet is affixed to the inner surface by adhering the sachet to the lower surface of the strip film that is the inner surface of the package body in the transport path of the strip film from the raw roll to the bag making machine. Packaged products can be produced. In this case, if the sachet is stuck to the central portion in the width direction of the belt-like film, the sachet is positioned on the front surface of the package, which is not preferable in appearance. Therefore, it is performed that the sticking position of the sachet is the film end. Thereby, as shown in FIG. 1A, a package 4 in which the product 2 and the sachet 3 are housed in the bag 1 is manufactured, and the sachet 3 is a bag on the back side of the package 4. Located on the inner surface of the body 1 near the center seal portion 1a. In addition, both ends of the bag body 1 orthogonal to the center seal portion 1a are also sealed to form the end seal portion 1b, and the package body 4 is sealed. As a packaging device for producing a package that encloses this type of small bag, there is, for example, Patent Document 1.

Japanese Patent Laid-Open No. 9-226843

  As mentioned above, when the attachment position of the sachet is the end of the belt-like film, when the belt-like film passes through the bag-making machine, the sachet must pass through the side of the bag-making machine where the entrance angle of the belt-like film is tight. Because of this, Ageless changes its direction of travel suddenly at the bag-making machine entrance and shows a behavior close to reversal. At this time, if the corners come into contact with the product or are pierced, the product may be damaged. In particular, when the product is soft or fragile, such a problem becomes significant.

  Moreover, in order to prevent the occurrence of such a situation, there is a case where the timing of entering the product and the small bag making machine is slightly shifted. However, if the packaging of the product and the sachet into the bag making machine is shifted in this way, the position of the sachet 3 in the package 4 is shifted from the center as shown in FIG. Is not good. Furthermore, in view of the fact that the sachet comes into contact with and damages the product when the sachet is reversed, the sachet is prevented from coming into contact with the product when the sachet enters the side of the bag making machine and reverses. Timing will be measured. As a result, the sachet 3 has a positional relationship that protrudes outward from the outer peripheral edge of the product 2 and is in a position close to the end seal portion 1b. When the package 4 is torn and opened with scissors or the like, the film portion of the bag 1 between the product 2 and the end seal portion 1b is cut. If the end seal portion 1b side where the sachet 3 is approaching is cut by caution, the sachet may be accidentally cut together and the contents of the sachet may be scattered around.

In order to solve the above-described problems, the bag making machine according to the present invention is (1) a belt-like film continuously drawn from the raw fabric roll, passed through a bag making apparatus, and made into a cylindrical shape, The tubular product wrapped around the product to be supplied to the bag making apparatus, formed into a tubular shape through the bag making apparatus and sealed to form a tubular film, and then transported together with the product A bag making apparatus used for a pillow wrapping machine for manufacturing a pillow wrapping body that encloses the product by sealing and cutting the film in the lateral direction of the traveling direction, and wraps the product by bending both end edges of the belt-like film downward. includes a bag-making apparatus having an open part of the bottom plate, the conveying path of the products to be placed on the open sites, to the bag unit have respective side walls extending downwardly on both side edges of the top plate One side wall is formed on a flat surface , The other side wall bottom plate extending inwardly therebelow are formed,
A sachet is affixed to one side edge of the belt-like film, and the film part to which the sachet is affixed moves along the one side wall of the bag making machine, and is positioned below the transport path. It was made to be able to be bent at. This corresponds to a preferred embodiment.
(2) The belt-like film continuously drawn from the raw fabric roll is passed through a bag making device to form a bag, wraps the product supplied to the bag making device, and passes through the bag making device. A pillow that forms a tubular film by sealing the overlapped film overlapped and formed into a shape, and encloses the product by sealing and cutting the tubular film conveyed along with the product in the lateral direction of travel. A bag making apparatus that is used in a pillow packaging machine for producing a packaging body and wraps the product by bending both end edges of the belt-like film downward, and a bag making machine in which a part or all of a bottom plate is opened, and its opening The bag making device has a side wall made of a flat surface extending downward on both side edges of the top plate, and is located below the conveyance path. Center the bottom end of the side wall A sachet is attached to one side edge of the belt-like film, and the film part to which the sachet is attached moves along the side wall of the bag making machine, The film portion is bent at the guide portion. The present invention is realized by the embodiment shown in FIG. In the embodiment, the guide surface is a flat inclined surface, but may be a curved curved surface.

  That is, in a normal bag making machine, the film portions on both side edges of the belt-like film are both bent at the entrance side of the bag making machine so as to be along the inner peripheral surface of the bag making machine having a substantially square cross section. The surroundings of the product supplied to the bag device (upper surface, both side surfaces, and lower surface) are wrapped. In the present invention, the film portion folded along the side wall of the portion where the lower portion of the bag making device is opened is left as it is. It hangs down and then bends toward the bottom of the product. Therefore, even if the film part to which the sachet is attached is rotated along the side surface of the bag making machine, the sachet is positioned downward along one side wall, so the film part The attached sachet does not touch the product and cause damage. And the film site | part with which the small bag was affixed in the position away from the entrance side of a bag making machine is folded, located in the lower side of a product, a film can be bag-shaped and a product can be wrapped.

(3) At least a part of the transport path can be constituted by a belt conveyor. If it does in this way, platemaking can be conveyed smoothly. (4) At least a part of the transport path may be constituted by a free roller. For example, as in the above invention (1) , when a part of the lower surface of the product is placed on a film folded along the bottom plate, the film is transported, so that the product is transported from the film. Can receive power. In such a case, it is not always necessary to receive the conveyance force from the conveyance path provided in the open part of the bag making machine. If the roller (roller) rotates freely, the roller that contacts the product conveyed with the film Since it rotates, it does not interfere with such conveyance.

The bag making machine has side walls extending downward on both side edges of the top plate, one side wall is formed as a flat surface, and the other side wall is formed with a bottom plate extending inwardly under the one side wall. Since the film portion is bent at the side wall, it is possible to provide a good balance between ease of insertion and installation of a conveyance path such as a belt conveyor and ease of forming into a bag shape.

The bag making machine has side walls made of flat surfaces extending downward on both side edges of the top plate. When the film part is bent on one of these side walls, the lower part of the bag making machine is completely Since it opens, it becomes easy to insert and arrange a conveyance path such as a belt conveyor.
And if the lower end part of the side wall located below the conveyance path is a guide part that is inclined inwardly in the center, and the film part is bent in the guide part, the invention does not have the above guide part. Since both sides of the belt-like film are guided by the guide surface and guided to the inside, it is easy to form in a bag shape.

(5) A pillow packaging machine according to the present invention is arranged on the upstream side of the bag making apparatus according to any one of (1) to (4) and supplied to the bag making machine. A product conveying means for conveying a product, a film supply means for supplying a belt-like film in a state where sachets are attached to the bag making apparatus at regular intervals, and the bag making apparatus provided on the downstream side of the bag making apparatus. A sealing means for sealing a predetermined position of the film formed into a cylindrical shape after passing through the apparatus, and a cutting means for cutting the film formed in the cylindrical shape in the lateral direction were configured. In the embodiment, the sealing means is realized by a center seal device and an end seal device. In the embodiment, the end sealing device and the cutting device are integrally formed by the end sealing device, but may be formed separately.

  In the present invention, the product is not damaged by the sachet that rotates along with the folding of the belt-like film when entering the bag making machine. Therefore, the sachet can be positioned at the center of the package or the like (a portion that does not protrude greatly from the outer periphery of the product), and the appearance is not impaired.

It is a figure which shows an example of a pillow package. It is a front view which shows suitable one Embodiment of the pillow packaging machine which concerns on this invention. It is a bottom view which expands and shows a bag making apparatus part. It is a side view which expands and shows a bag making apparatus part. It is a perspective view which expands and shows a bag making apparatus part. It is a side view which expands and shows the bag making apparatus part which shows other embodiment.

  FIG. 2 shows an embodiment of a pillow packaging machine to which the present invention is applied. The pillow wrapping machine 10 has a product transport and supply device 11, a wrapping machine body 12, and a carry-out conveyor device 13 in order from the upstream side.

  The product transport and supply device 11 transports the product 14 at regular intervals and sequentially supplies the product 14 to the packaging machine body 12 at the next stage, and is formed from a finger conveyor device. That is, the push finger 17 is attached to the endless chain 16 spanned between the front and rear sprockets 15 (only the front is drawn in the drawing). Then, by supplying the product 14 between the front and rear push fingers 17, the product 14 is conveyed at the finger pitch of the push fingers 17. The product 14 is a soft food such as “Dorayaki”.

  The packaging machine body 12 is configured to guide the belt-like film 21 continuously drawn from the raw roll 20 to the bag making machine 24 while passing over various rollers 22 (only one is drawn in the drawing). Then, the belt-like film 21 is passed through the bag making device 24 to form a bag. In addition, a sachet supply device 40 is disposed in the middle of the transport path of the strip film 21. The sachet supply device 40 is a device for attaching a sachet 42 to a predetermined position of the belt-like film 21. For example, a device disclosed in Patent Document 1 or the like can be used. And in this embodiment, the small bag 42 is affixed by the packaging pitch space | interval to the one side edge vicinity (refer FIG. 3 to FIG. 5) made to approach the one side of the width direction of the strip | belt-shaped film 21. FIG. Furthermore, the attachment position of the small bag along the advancing direction of the strip | belt-shaped film 21 is set to the position which overlaps with the product 14 in the bag making machine 24 (film formed in the cylinder shape) (refer FIG. 3). The pouch 42 is filled with a freshness-keeping agent such as an oxygen scavenger, for example. In addition, the sachet supply device 40 in Patent Document 1 is configured to sequentially attach the sachets attached to the strip-like release paper to the strip-like film 21 while peeling the sachets attached at appropriate intervals one by one. There is no limitation, and a sachet itself connected in a continuous tape shape is prepared, and an adhesive is applied to the sachet that has been cut and separated one by one from the top with a cutter device, and applied to a predetermined position of the belt-like film 21. Various devices such as attaching can be used.

  On the other hand, on the downstream side of the bag making device 24, a pinch roller 29 that sandwiches a portion where both side edges of the belt-like film 21 that has passed through the bag making device 24 and is formed into a cylindrical shape are overlapped, and gives a conveying force; A center seal device 27 that seals the overlapped portion and a lower belt 26 that constitutes a conveyance path of the tubular film 25 that encloses the product 14 are provided in that order. Further, an upper restraining belt 28 is disposed at a predetermined position above the lower belt 26, and an end seal device 30 is disposed in front of the traveling direction thereof. The upper restraining belt 28 is disposed on the front side of the end seal device 30 and restrains the product 14 from floating upward. Thereby, the predetermined position (portion where the product 14 does not exist) of the tubular film 25 is correctly sealed and cut by the end seal device 30, and the product 14 is prevented from being bitten.

  The end seal device 30 includes a pair of top sealers 31 and 32 arranged to face each other in the vertical direction. The upper top sealer 31 has a lower surface as a seal surface 31a, and the lower top sealer 32 has an upper surface as a seal surface 32a. Further, a cutter blade is incorporated below the upper top sealer 31. The top sealers 31 and 32 move in a substantially rectangular locus by moving toward and away from each other and moving back and forth while maintaining the state where the seal surfaces 31a and 32a face each other. Then, the top sealers 31 and 32 move closer to each other, the seal surfaces 31a and 32a are sandwiched from above and below the desired portion of the tubular film 25 (between the front and rear products 14) and heat-sealed, and are tubular with a cutter blade. The film 25 is cut in the lateral direction. Thereby, the front-end | tip part (part which encloses the top product 14) of the cylindrical film 25 is isolate | separated, and the package 34 is manufactured. Then, the package 34 is conveyed on the carry-out conveyor device 13.

  Since the basic configuration of these pillow packaging machines is the same as that of the prior art, detailed description thereof is omitted. Of course, the pillow packaging machine to which the present invention is applied can use various configurations other than this. The end seal device is not limited to the box motion type, and can be applied to various types such as a type that moves up and down (does not move back and forth) on the spot and a rotary type.

  Here, in the present embodiment, the shape of the bag making device 24 is a conventional one that has been used in the past (substantially in a cross-section of a square shape: the side walls are suspended from both side edges of the top plate, and the lower ends of the respective side walls are inward. And a shape in which a bottom plate is provided by bending). Specifically, as shown in FIG. 4, side walls 24 b and 24 c that are bent downward at approximately 90 degrees are provided on both side edges of the top plate 24 a, but one side wall 24 c is straight as it is. It is a flat surface that extends to. Thereby, since the strip | belt-shaped film 21 is deform | transformed along the internal peripheral surface of the bag making machine 24, the half film site | part by the side wall 24b side from the center along the advancing direction of the strip | belt-shaped film 21 is one side. Although it is bent so as to be guided downward along the side wall 24b, it is guided as it is to extend straight downward (see FIGS. 4 and 5). And the small bag 42 is affixed on the film part which concerns. Thus, since the sachet 42 is attached to the film part extending straight downward, the sachet 42 is attached to the film part along the side wall 24c from the state attached to the flat belt-like film 21 before entering the bag making machine 24. In the attached state, the posture only needs to be rotated by about 90 degrees (see FIG. 5), and it does not rotate vigorously as the top and bottom turns at once (rotates 180 degrees) as in the past, and within the rotational movement range. Then there is no contact with the product. Moreover, since the strip | belt-shaped film site | part with which the small bag 42 is affixed is bent in the position below the conveyance surface of the 1st belt conveyor 44, it can avoid that the small bag 42 to invert contacts the product 14. FIG. Then, the sachet 42 moves in the bag-making machine 24 in a standing state stuck to the film part that is straightly lowered along the side wall 24c, and the film part is bent inward, Accordingly, even if the sachet 42 further rotates and approaches the product 14, there is a first belt conveyor 44 that constitutes a conveyance path as described later on the lower surface side of the product 14. The pouch 42 does not contact the product 14 and cause damage.

  Further, the other side wall 24b is continuously provided with a bottom plate 24d bent inward at the lower end thereof. As a result, the half film portion on the opposite side of the belt-like film 21 is guided along the top plate 24a, the side wall 24b, and the bottom plate 24d and has a shape curved in a cylindrical shape. Further, the front end 24d ′ of the bottom plate 24d becomes a flange portion bent downward, and the side edge portion 21a of the belt-like film 21 is guided downward along the front end 24d ′.

  In other words, the top plate 24a, the side wall 24b, and the bottom plate 24d have the same configuration as that of a conventional general bag making machine, and one side wall 24c side is in an open state in which the bottom of the bag making machine 24 is removed. It has become. Thus, the state where the side wall 24c side is a flat surface and extends straight downward is formed over the entire length. Therefore, the portion where the bottom plate is originally formed is open, and the side edge of the belt-like film 21 also hangs down along the side wall 24c over almost the entire length of the bag making device 24. The product 14 that moves in the bag making machine 24 is not stably conveyed, and may drop in some cases.

  Therefore, a cross belt conveyor is provided between the carry-out end side of the product conveying / supplying device 11 and the bag making device 24. As shown in FIG. 3, the first belt constituting the narrow conveying path is divided into two left and right. The conveyor 44 and the second belt conveyor 45 are arranged in parallel. And the front-end | tip part of the 1st belt conveyor 44 by the side wall 24c side is extended and provided in the inside of the bag making machine 24. As shown in FIG. As a result, the product 14 is conveyed in the bag making machine 24 in a state of straddling the first belt conveyor 44 and the film curved from the side wall 24b along the bottom plate 24d.

  Furthermore, in the present embodiment, the downstream end of the first belt conveyor 44 is positioned so as to protrude further downstream than the downstream end of the bag making device 24. Furthermore, a roller (roller) 46 that rotates freely is disposed at the tip of the downstream end of the first belt conveyor 44. This roller 46 also constitutes a part of the transport path. As shown in FIG. 3, the side edge in the width direction of the strip-shaped film 21 on the side of the side wall 24c (the side on which the small bag 42 is attached) is conveyed in a state along the inner surface of the side wall 24c (see FIG. 4). The belt is gradually bent inward, and finally the side edge portions 21a, 21a of the belt-like film 21 overlap each other at the portion of the pinch roller 29 at the rear stage. Therefore, even immediately after passing through the bag making device 24, there is a possibility that no film is present on the transport surface (near), so the product 14 is received by the roller 46 and smoothly transported. . Furthermore, even if the film part is bent inward, and the sachet 42 further rotates and approaches the product 14, the roller 46 constituting the conveyance path exists on the lower surface side of the product 14. The small sachet 42 in contact with the product 14 does not damage the product 42.

  When the product 14 further moves forward and is positioned further downstream than the roller 46, the belt-like film 21 is formed into a cylindrical shape, and both side edges thereof are bent inward so as to face the lower surface side of the product 14. The product 14 is carried on the film. At this time, the sachet 42 is in contact with the product 14, but since it is already horizontal with the conveyance surface, it comes into surface contact and does not damage the product 14.

  Then, in a state where the film portion on the side where the sachet 42 is attached is bent to the lower side (bottom side) of the product 14, the sachet 42 is positioned under the product 14 as shown in FIG. 3. Therefore, the finally manufactured package can be in a state where it does not protrude from the outer periphery of the product as shown in FIG.

  By providing the roller 46, it is possible to assist the smooth conveyance of the product 14 by rotating. However, the roller 14 is not necessarily a roller, and may be a plate member that constitutes the conveyance surface, or other various configurations. Can be taken. Further, in the present invention, a member for receiving the product such as the roller 46 is not necessarily provided, and the film portion on the side wall 24c side is bent inside the bag making machine 24, and the lower side of the product that has passed through the bag making machine 24. As long as it can be supported by the film portion.

  In the above-described embodiment, one side wall 24c of the bag making device 24 is straightly lowered in a planar shape, and the other side wall 24b side is continuously formed with a bottom plate 24d at its lower end as in the conventional case. However, the present invention is not limited to this. For example, as shown in FIG. 6 (a), both side walls 24c and 24b 'may be flat surfaces and may be extended downward. In this case, since the bottom of the bag making device 24 is completely removed, the wide belt conveyor 47 is disposed over the entire length. As a result, the product 14 is transported and passed by the belt-on conveyor 47 in the bag making machine 24, and the belt-like film 21 is bent downward along the inner surface of the bag making machine 24. The side surface is covered from the upper surface.

  And like embodiment mentioned above, the both-sides edge of the strip | belt-shaped film 21 is bend | folded inside at an appropriate timing, and it will be located under the product 14, However, The film site | part of the side to which the small bag 42 was attached at least Is bent at a position lower than the conveying surface of the belt conveyor 47 constituting the conveying path of the product 14 such as the belt conveyor 44 or a roller provided thereafter. Thereby, damage to the product 14 can be avoided. With such a configuration, since the entire lower surface of the bag making machine 24 is open, there is an advantage that the belt conveyor 47 can be easily inserted. Other configurations and operational effects can be the same as those of the above-described embodiments and modifications.

  Moreover, as shown in FIG.6 (b), you may provide the inclination guide part 24e bent toward the inner side in the lower end part of the both-side walls 24b and 24c of the bag making machine 24. FIG. By providing the inclined guide portion 24e, both side edges of the belt-like film 21 are bent slightly inward along the inclined guide portion 24e, so that it is easy to form into a cylindrical shape thereafter. However, since the lower part of the bag making machine 24 does not open completely, it is preferable to have a curved surface. Other configurations and operational effects can be the same as those of the above-described embodiments and modifications. In particular, as shown in FIGS. 6 (a) and 6 (b), there is an advantage that the bag-making balance can be easily taken if the shape is bilaterally symmetric.

DESCRIPTION OF SYMBOLS 10 Pillow packaging machine 11 Product conveyance supply apparatus 12 Packaging machine main body 13 Unloading conveyor apparatus 14 Packaged object 15 Sprocket 16 Endless chain 17 Feeding finger 20 Original roll 21 Strip film 22 Roller 24 Bag making machine 24a Top plate 24b Side wall 24c Side wall 24d Bottom plate 24e Inclined guide portion 25 Cylindrical film 26 Lower belt 27 Center seal device 28 Upper restraining belt 29 Pinch roller 30 End seal device 40 Small bag supply device 42 Small bag 44 First belt conveyor (conveying surface)
45 Second belt conveyor 46 Roller

Claims (5)

The belt-like film continuously drawn from the raw fabric roll is passed through a bag making apparatus to form a bag, wraps the product supplied to the bag making apparatus, and is made into a cylinder through the bag making apparatus. A pillow packaging body that seals the overlapped film overlap end to form a tubular film, and seals and cuts the tubular film conveyed along with the product in a lateral direction in a traveling direction to enclose the product. A bag making apparatus used in a pillow wrapping machine for manufacturing, wrapping the product by bending both end edges of the belt-like film downward,
A bag-making apparatus having an open part of the bottom plate,
A transport path for the product to be placed in the open site;
With
The bag making machine has side walls extending downward on both side edges of the top plate, one side wall is formed in a flat surface, and the other side wall is formed with a bottom plate extending inwardly under the side wall,
A sachet is affixed to one side edge of the belt-like film, and the film part to which the sachet is affixed moves along the one side wall of the bag making machine, and is positioned below the transport path. bag-making apparatus characterized that you have to be folded in. The belt-like film continuously drawn from the raw fabric roll is passed through a bag making apparatus to form a bag, wraps the product supplied to the bag making apparatus, and is made into a cylinder through the bag making apparatus. A pillow packaging body that seals the overlapped film overlap end to form a tubular film, and seals and cuts the tubular film conveyed along with the product in a lateral direction in a traveling direction to enclose the product. A bag making apparatus used in a pillow wrapping machine for manufacturing, wrapping the product by bending both end edges of the belt-like film downward,
A bag making machine in which a part or all of the bottom plate is opened;
A transport path for the product to be placed in the open site;
With
The bag making machine has side walls made of flat surfaces extending downward on both side edges of the top board,
The lower end portion of the side wall located below the transport path is a guide portion that inclines toward the center,
A sachet is affixed to one side edge of the belt-like film, and the film part to which the sachet is affixed moves along the side wall of the bag making machine, and the film is formed at the guide portion of the side wall. A bag making apparatus characterized in that a part is bent.   The bag making apparatus according to claim 1, wherein at least a part of the conveyance path is configured by a belt conveyor.   The bag making apparatus according to any one of claims 1 to 3, wherein at least a part of the conveyance path is configured by a free roller. The bag making apparatus according to any one of claims 1 to 4,
A product conveying means arranged on the upstream side of the bag making apparatus, for conveying the product supplied into the bag making device;
A film supply means for supplying a belt-like film in a state where small bags are attached to the bag making apparatus at regular intervals;
Sealing means provided on the downstream side of the bag making apparatus, and sealing a predetermined position of the film that has passed through the bag making apparatus and is formed into a cylindrical shape;
A cutting means for cutting the film formed into a cylindrical shape in the lateral direction;
A pillow packaging machine characterized by comprising:

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