JP2012051621A - Packaging bag - Google Patents

Abstract

PROBLEM TO BE SOLVED: To discharge a jelly packaging object enclosed in a packaging bag in a state that it is broken down into smaller pieces as much as possible by opening the packaging body while giving directivity to the discharge.SOLUTION: The packaging bag P includes a discharging unsealed portion 5 for the packaging object 1 which is formed in a thermal bonding range by heat seal by performing no thermal bonding on a part of this range. The discharging unsealed portion 5 includes an orifice-like portion 50 communicating with a charging space 4 of the packaging object 1 and a broad guide 51 continued to the orifice-like portion 50 to extend to the outer edge side of the packaging bag P. The thermal bonding range can be cut along a virtual cut scheduled line y crossing the broad guide 51.

Description

  The present invention relates to an improvement of a packaging bag produced by a bag making and filling machine.

  A packaging bag P, which is produced by heat-sealing a film that can be heat-sealed by a body filling machine using a film that can be heat-sealed as a packaging material, is currently used for packaging objects 1 'having various properties. When a liquid such as soy sauce or dressing is used as the item to be packaged 1 ′, as shown in FIG. 9, the unsealed portion 5 ′ having a tubular shape communicating with the filling space 4 ′ inside the bag has the heat seal. In many cases, it is provided within the thermal bonding range. The unsealed portion 5 ′ can be communicated with the outside by cutting the thermal bonding range of the packaging bag body P along the line y ′ in FIG. 9, and then the filling space 4 ′. By pressurizing the liquid, it is possible to discharge the liquid as the packaged object 1 ′ to the outside through the unsealed portion 5 ′.

  Here, if such a packaged object 1 ′ has a jelly shape, the packaged object 1 ′ is discharged to the outside in a state of being finely crushed by the pressurization after cutting of the thermal bonding range. Can be made available. In this case, as the cross-sectional area of the unsealed portion 5 ′ is reduced, the packaged object 1 ′ can be more finely crushed and discharged. However, the discharge pressure increases as this is reduced. The packaged object 1 ′ is more likely to be discharged in an irregular direction through the unsealed portion 5 ′. (See FIG. 10) When directing such discharge, it is necessary to increase the cross-sectional area of the unsealed portion 5 ', and it becomes difficult to discharge the packaged object 1' finely.

  The main problem to be solved by the present invention is that a jelly-like packaged object enclosed in this type of packaging bag body can be discharged in a state that is crushed as finely as possible by opening the packaging bag body, This is to give directivity to the discharge.

In order to achieve the above object, in the present invention, a packaging bag is obtained by enclosing a packaging bag body in a jelly-like form by a bag making and filling machine by heat-sealing the film. ,
It comprises an unsealed portion for discharging the packaged object formed by not performing this thermal bonding for a part of this range within the thermal bonding range by the heat seal,
The unsealed portion for discharge includes an orifice-shaped portion communicating with the filling space of the article to be packaged, and a wide guide portion continuing to the outer edge side of the packaging bag body following the orifice-shaped portion,
The thermal bonding range can be cut along an imaginary planned cutting line that intersects the wide guide portion.

  The packaging bag body is opened by cutting the thermal bonding range along an imaginary planned cutting line crossing the wide guide portion. Thereafter, when the formation portion of the filling space of the packaging bag body is pressed, the jelly-like article to be packaged is sent to the outside through the unsealed portion for discharge while being crushed by the orifice-shaped portion of the unsealed portion for discharge. The discharge pressure of the package to be crushed by the orifice-shaped part is reduced by the wide guide part, and the crushed package is guided to the wide guide part and is placed outside along the discharge center line of the unsealed part for discharge. Discharged. Thereby, it is possible to give directivity to the discharge while allowing the packaged object to be crushed as finely as possible and discharged.

  In some cases, an island-shaped thermal bonding portion is formed in the orifice-shaped portion. In such a case, while reducing the cross-sectional area of the orifice-shaped portion at the island-shaped heat-bonded portion, the orifice-shaped portion can be divided and the jelly-shaped article passing therethrough can be finely crushed.

  If a notch located on the planned cutting line segment is formed on the outer edge of the packaging bag body, the thermal bonding range can be easily and appropriately used along the virtual planned cutting line segment using this notch. The packaging bag can be opened by cutting.

In addition, if the perforation along the planned cutting line segment is formed in the thermal joining range,
Using this perforation, the packaging bag body can be opened by cutting the thermal bonding range easily and appropriately along the virtual cut line.

  According to the present invention, the jelly-like article enclosed in the packaging bag body can be discharged in the state of being crushed as finely as possible by the orifice-shaped portion constituting the unsealed portion for discharge by opening the packaging bag body. At the same time, the crushed package can be guided and sent to the outside while reducing the discharge pressure in the wide guide section that follows, and this discharge can be given directivity.

FIG. 1 is a front view of a packaging bag body generated by a three-side seal packaging machine. FIG. 2 is a front configuration diagram of a packaging bag body generated by a three-side seal packaging machine, and is an example in which perforations are added to the example shown in FIG. FIG. 3 is a front configuration diagram of a packaging bag body generated by a three-side seal packaging machine. Unlike the example shown in FIG. 1, a perforation is provided, and a discharge unsealed portion is formed at a different location. This is an example. FIG. 4 is a front view of the packaging bag body generated by the four-side seal packaging machine. FIG. 5 is a front view of the packaging bag body generated by the vertical pillow type packaging machine. FIG. 6 is a perspective configuration diagram showing a state in which an object to be packaged is discharged from the inside of the packaging bag shown in FIG. FIG. 7 is a perspective view showing the main configuration of the three-side seal packaging machine. FIG. 8 is a perspective view of a second heat roll constituting the three-side seal packaging machine of FIG. FIG. 9 is a front view of a conventional packaging bag body. FIG. 10 is a perspective configuration diagram showing a state in which an object to be packaged is discharged from the inside of the packaging bag shown in FIG.

  A typical embodiment of the present invention will be described below with reference to FIGS. The packaging bag body P according to this embodiment is generated by the bag making and filling machine M, and in the process of generation, the wrapping object 1 that forms a jelly shape is heat sealed on the film F and enclosed. It will be.

  1 to 3 are examples of a packaging bag body P generated by a three-side seal packaging machine, FIG. 4 is an example of a packaging bag body P generated by a four-side seal packaging machine, and FIG. 5 is a vertical pillow type packaging machine. The example of the packaging bag body P produced | generated by each is shown. (In FIGS. 1-8, it represents as the film F which comprises the packaging bag body P being transparent.)

  FIG. 7 shows a main configuration of a three-side seal packaging machine that generates the packaging bag body P. In the process of paying out and transporting the film F that is prepared in a form that can be heat-sealed and wound up, first, the film F is folded into two around the position in the middle of the width direction. In the illustrated example, the film F is folded in half by passing the film F through the annular guide 100.

  Second, the first seal 2 along the conveyance direction x of the film F is applied to the edge Fa opposite to the folded side of the folded film F. In the illustrated example, the first folded film F is passed between a pair of first heat rolls 101, 101 having rotation axes arranged in a direction intersecting with the conveyance direction x of the film F. The seal 2 is formed continuously. The first heat roll 101 is made of metal and is heated to a temperature enabling the heat sealing by a heating means (not shown). Circumferential ridges 101a are formed on both ends of the pair of first thermal rolls 101, 101, respectively, and the pair of first thermal rolls 101, 101 are rotated so as to abut the circumferential ridges 101a. It has become. The pair of first heat rolls is sandwiched between the pair of first heat rolls 101a and the circumferential flange 101a on one end side of the pair of first heat rolls 101, while the edge Fa opposite to the folded side of the film F folded in half. 101, 101 is sent before the installation position. The first seal 2 is applied to the film F by pressurization and heating by the circulating rod 101a.

  Third, the second seal along the direction crossing in the transport direction x with respect to the film F transported in the form of a tube before the installation position of the first heat roll 101 by the first seal 2. Apply seal 3. In the example shown in the figure, the film F formed into a cylindrical shape as described above is passed between a pair of second heat rolls 102 and 102 in which a rotation axis is arranged in a direction intersecting with the conveyance direction x of the film F. The second seal 3 is intermittently formed with a certain distance between the second film F adjacent in the transport direction x of the film F. The second heat roll 102 is made of metal and is heated to a temperature enabling the heat sealing by a heating means (not shown). Circumferential ridges 102a are formed at both ends of the pair of second heat rolls 102, 102, and rib-like ridges 102b are formed between the peripheral ridges 102a at both ends. The pair of second heat rolls 102, 102 are rotated in the process of rotating the other second heat roll 102 b that forms the rib-like ridge 102 b on the side facing the other second heat roll 102. The rib 102 is abutted against the rib-like raised portion 102b. The cylindrical film F as described above is sandwiched between the rib-like ridges 102b of the pair of second heat rolls 102, 102, and comes before the installation position of the pair of second heat rolls 102, 102. Sent out. The second seal 3 is applied to the film F by pressurization and heating by the rib-like raised portion 102b. The space between the adjacent second seals 3 becomes a filling space for the article 1 to be packaged constituting one packaging bag body P.

  Fourth, at the timing when one of the adjacent second seals 3 constituting one packaging bag body P is preceded by the film F formed into a cylindrical shape as described above, A predetermined amount of the article to be packaged 1 is filled in the film F with the seal 3 as a filling bottom. This filling is typically terminated before the other of the adjacent second seals 3 constituting one packaging bag body P is applied. In the illustrated example, the film F folded in half from above the installation position of the first heat roll 101 enters between the film F and passes through a portion where the revolving rod 101a of the pair of first heat rolls 101, 101 is not formed. Such filling is performed by a filling tube 103 in which the discharge port is positioned immediately above the second heat roll 102.

  Fifth, the film to be transported by cutting along the direction crossing the transport direction x of the film F within the heat joining range of the second seal 3 before the installation position of the second heat roll 102. The packaging bag body P produced | generated continuously from F is cut into bags one by one. In the example shown in the drawing, such cutting is performed by a cutting device including a fixed blade 104b and a rotary blade 104a. Reference numeral 105 in the figure denotes a notch forming means for forming a notch to be described later at a predetermined location of the packaging bag body P prior to cutting by the cutting device, and the packaging generated on the side of the notch forming means 105. It moves at the timing when a predetermined location of the bag body P arrives and is notched at this location.

  In the packaging bag body P according to this embodiment, the heat sealing, that is, the thermal bonding of the first seal 2 and the second seal 3 is not performed for a part of this range. The unsealed part 5 for discharge of the said to-be packaged object 1 formed by doing is provided. The unsealed portion 5 for discharge includes an orifice-shaped portion 50 communicating with the filling space of the article 1 to be packaged, and a wide guide portion 51 continuing to the outer edge side of the packaging bag body P following the orifice-shaped portion 50. I have. At the same time, the thermal joining range can be cut along an imaginary planned cutting line segment y intersecting with the wide guide portion 51.

  In the example of illustration, the packaging bag body P is comprised so that the outline shape of the front and back may be made into a rectangular shape.

  In the example shown in the drawing, the discharge unexposed area is formed in a heat bonding range formed on one side of the width side of the packaging bag body P, and in a heat bonding range formed by the second seal 3 in the three-side seal wrapping machine. A seal portion 5 is formed.

  The unsealed portion 5 for discharge has an inner back portion 52 facing the orifice-like portion 50, and the inner back portion 52 is positioned within the thermal bonding range. Accordingly, the packaging bag body P is not opened until the thermal joining range is cut along the planned cutting line y.

  In the example shown in the drawing, the unsealed portion 5 for discharge includes a back side portion 53 constituting an inner back portion 52, a left side portion 54 extending between the left end of the back side portion 53 and the orifice-like portion 50, and the back side portion 53. It is surrounded by a right side portion 55 extending between the right end of the side portion 53 and the orifice-like portion 50, and is configured as a void communicating with the filling space 4 in the orifice-like portion 50.

  Both the left side portion 54 and the right side portion 55 have a taper portion that approaches the discharge center line 56 as it approaches the filling space 4 side, following a portion parallel to the discharge center line 56 of the unsealed portion 5 for discharge. The orifice portion 50 is formed by a terminal located on the filling space 4 side of the tapered portion. Therefore, the wide guide part 51 is provided with a funnel tubular part 51 a that gradually increases in width as it moves away from the orifice-like part 50 at a location following the orifice-like part 50.

  Further, in the example shown in FIGS. 1, 2, 4, and 5, a passage 57 that forms a funnel tubular shape following the orifice-like portion 50 is formed at a part of the edge of the thermal joining range facing the filling space 4. Is formed.

  For example, when the unsealed portion 5 for discharge is generated in the packaging bag body P by the above-described three-side seal packaging machine, as shown in FIG. 8, the rib-like raised portion 102b of the second heat roll 102 is formed. An unsealed portion for discharge to be formed which is recessed from the protruding end surface 102c of the rib-like raised portion 102b and is opened laterally at a corner portion 102e between the protruding end surface 102c and the side surface 102d of the rib-like raised portion 102b. It can be formed by providing a recess 102f having a contour following the contour of 5. In this case, the open portion 102g of the recess 102f is a portion where the orifice-shaped portion 50 is formed. Cutting by the cutting device is performed within the width of the second seal 3 so as not to be applied to the unsealed portion 5 for discharge, so that it is divided by the cutting in the second seal 3 formed by the rib-like raised portion 102b. On the other hand, the one side becomes a thermal joining range having the unsealed portion 5 for discharging of one packaging bag body P, and the other side becomes a thermal joining range having no unsealed portion 5 for discharging one other packaging bag body P.

  If a notch 6 positioned on the planned cutting line segment y is formed on the outer edge of the packaging bag body P, the thermal joining range can be increased along the virtual planned cutting line segment y using the notch 6. The packaging bag body P can be opened easily and appropriately by cutting.

  Further, if a perforation 7 is formed in the thermal joining range along the planned cutting line segment y, the thermal joining range can be easily set along the virtual planned cutting line segment y using the perforation 7. And it can cut | disconnect appropriately and the packaging bag body P can be opened.

  In the example shown in FIG. 1, the unsealed portion 5 for discharge is formed so as to be directed to one of the side portions on the width side of the packaging bag body P, and on the length side of the packaging bag body P adjacent to this side portion. A notch 6 is formed at the edge of the packaging bag body P at one of the sides where the first seal 2 is applied.

  In the example shown in FIGS. 2 to 5, a perforation 7 is formed in addition to the notch 6. (In FIG. 5, the notch 6 is provided in the formation place of the 2nd seal | sticker 3 which is not shown in figure on the back side.)

  Moreover, in the example shown by FIG. 3, the unsealed part 5 for discharge goes to the corner part of the packaging bag body P which one side of the width side of the packaging bag body P and one of the side parts of the length side contact. It is formed as follows.

  The packaging bag body P is unsealed by cutting the thermal bonding range along a virtual cut line y that intersects the wide guide portion 51. Thereafter, when the formation portion of the filling space 4 of the packaging bag body P is pressed, the jelly-like article 1 to be packaged is crushed by the orifice-like portion 50 of the discharge unsealed portion 5 and is discharged through the discharge unsealed portion 5 to the outside. Sent out. The discharge pressure of the packaged object 1 crushed by the orifice-shaped part 50 is lowered by the wide guide part 51, and the crushed package 1 is guided by the wide guide part 51, and the discharge center line 56 of the unsealed part 5 for discharge. To be discharged outside. Thereby, the packaging object 1 can be crushed as finely as possible and can be discharged, and the discharge can have directivity. (See Figure 6)

  In the examples shown in FIGS. 1 and 2 and FIGS. 4 and 5, the jelly-like article 1 is guided to the orifice-like portion 50 by the inner width gradually increasing portion when being pressed, and is crushed by the orifice-like portion 50. After passing through this, it is sent out through the wide guide portion 51 while gradually decreasing the discharge pressure at the outer width gradually increasing portion.

  In the example shown in FIG. 3, an island-shaped thermal bonding portion 58 is formed in the orifice-shaped portion 50. In this example, two island-shaped thermal bonding portions 58 having a dot shape are provided in the orifice-shaped portion 50. In such a case, while reducing the cross-sectional area of the orifice-shaped portion 50 at the island-shaped heat-bonding portion 58, the orifice-shaped portion 50 is divided and the jelly-shaped article 1 that passes through it is finely crushed. Can do.

  Various items that are required to be used in a crushed state are planned as the jelly-like package 1. For example, dressings, sauces, noodle soup, medicines and health supplements. If the dressing or sauce is used in a crushed state, even if it is added to the salad, for example, it will not flow down over time, as in the case of making it liquid. It is easy to maintain the conveniently added state. If it is made into the jelly-like thing utilized in the state which crushed the pharmaceutical and the health supplement, it can be made easy to swallow even in elderly people, for example compared with a capsule or a tablet. Such an article 1 to be packaged typically becomes a jelly by adding a gelling agent to the dressing or the like.

DESCRIPTION OF SYMBOLS 1 Packaged object 4 Filling space 5 Unsealed part for discharge 50 Orifice-like part 51 Wide guide part P Packaging bag body y Scheduled cutting line segment

Claims (4)

It is a packaging bag body in which a jelly-like article to be packaged by a bag making and filling machine is sealed by heat-sealing the film,
It comprises an unsealed portion for discharging the packaged object formed by not performing this thermal bonding for a part of this range within the thermal bonding range by the heat seal,
The unsealed portion for discharge includes an orifice-shaped portion communicating with the filling space of the article to be packaged, and a wide guide portion continuing to the outer edge side of the packaging bag body following the orifice-shaped portion,
The packaging bag body is characterized in that the thermal joining range can be cut along a virtual cutting line segment intersecting with the wide guide portion.   The packaging bag body according to claim 1, wherein an island-shaped thermal bonding portion is formed in the orifice-shaped portion.   The packaging bag body according to claim 1 or 2, wherein a notch positioned on the planned cutting line segment is formed at an outer edge portion of the packaging bag body.   The packaging bag according to any one of claims 1 to 3, wherein a perforation along a cutting line is formed in the thermal bonding range.

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