JP6126943B2 - Packaging horizontal sealer and packaging equipment - Google Patents

Description

  The present invention relates to a packaging horizontal sealer and a packaging apparatus including the packaging horizontal sealer.

  As a packaging device for packaging an article, for example, the technique of Patent Document 1 below has been proposed. The packaging device of Patent Document 1 includes a homer that forms a long film to be supplied in a cylindrical shape, and a vertical sealer for packaging that forms a cylindrical film by welding both edges of the film formed into a cylindrical shape by the homer. (Hereinafter, referred to as “vertical sealer” in the background art), a transport unit capable of supplying an object to be packaged inside the cylindrical film, and an object to be packaged supplied to the inside of the cylindrical film by the transport unit. A packaging horizontal sealer (hereinafter referred to as “horizontal sealer” in the background art) for welding the tubular film at predetermined intervals in a direction orthogonal to the longitudinal direction so as to be individually packaged for each package. ing.

JP 2002-128005 A

  To open a package manufactured using the above-described conventional packaging device, generally hold the vicinity of the horizontal seal portion in the vertical seal portion and the vicinity of the horizontal seal portion on the surface opposite to the vertical seal portion with fingers. Then, the lateral seal portion is peeled off. In the horizontal seal portion in the region overlapping with the vertical seal portion, the vertical seal portion is overlapped and sealed by the horizontal sealer.

  Therefore, in the region where the horizontal seal portion overlaps with the vertical seal portion, the pressure by the horizontal sealer is stronger than the region of the other horizontal seal portion (the region not overlapping with the vertical seal portion). That is, the intensity | strength of the welding (seal | sticker) of a horizontal seal part will become high by that much. Then, in order to open the package, the horizontal seal portion in the vertical seal portion and the vicinity of the horizontal seal portion in the opposite surface of the vertical seal portion are gripped with fingers to peel the horizontal seal portion. Requires a large amount of force and is difficult to open.

  In view of such circumstances, the present invention grasps the vicinity of the horizontal seal portion in the vertical seal portion and the vicinity of the horizontal seal portion on the opposite surface with fingers even if the horizontal seal portion has an area overlapping the vertical seal portion. It is an object of the present invention to provide a packaging horizontal sealer that can easily peel the lateral seal portion and to provide a packaging device including the packaging horizontal sealer.

The horizontal sealer for packaging of the present invention is a tubular film in which a vertical seal portion is formed by welding both edges along one direction of the film with a vertical sealer for packaging, in the width direction intersecting the one direction. By sandwiching and heating , a strip-shaped horizontal seal portion having a certain unidirectional length in the width direction and having a straight edge extending in the width direction on both sides in one direction is formed on the tubular film. And a pair of packaging horizontal sealer bodies for forming a packaging body individually packaged, the packaging horizontal sealer body is provided with a sealing surface sandwiching the cylindrical film facing the cylindrical film, In at least one of the sealing surfaces of the horizontal sealer body for packaging, in a region overlapping with the vertical seal portion, a notch having a length not exceeding the length in one direction is formed at the edge of the portion corresponding to the inner side of the package body, A plurality of seal surfaces are formed side by side in the width direction. It is characterized.

  In the above configuration, when the horizontal seal portion is formed by sandwiching the tubular film between the pair of packaging horizontal sealer bodies, the region that overlaps the vertical seal portion of the sealing surface of at least one packaging horizontal sealer body In the portion corresponding to the inner side of the package, a notch is formed, so in the region overlapping the vertical seal part, the portion corresponding to the inner side of the package is not heated and welded, Since such an unwelded part is a part corresponding to the inner side of the package, it is a handle when the vertical seal part and the opposite surface are gripped with fingers to separate the horizontal seal part. It becomes easy to peel a horizontal seal part.

  In the packaging horizontal sealer of the present invention, a recess for mounting a cutter that cuts the tubular film along the width direction is formed at one-way intermediate portion of each sealing surface of the pair of packaging horizontal sealer bodies, The sealing surface of each packaging horizontal sealer body is arranged on both sides of the concave portion, and a configuration in which the notch is formed on both sealing surfaces can be adopted. According to the said structure, the package which is easy to peel a horizontal seal part can be formed continuously.

  In the packaging horizontal sealer of the present invention, the notch can be configured to have a substantially triangular shape with the edge corresponding to the inner side end of the package as the bottom and the outer side of the package as the pointed end. According to the said structure, since the inner side of a package body becomes wide in the part which is not welded by a notch, it is easy to peel the horizontal seal part of a package body.

  The packaging apparatus of the present invention includes a homer that forms a long film to be supplied into a cylindrical shape, a vertical sealer for packaging that welds both edges of the film formed into a cylindrical shape by the homer, and a vertical sealer for packaging By forming a belt-shaped horizontal seal portion on the cylindrical film in a direction intersecting the conveyance direction of the packaged object in a direction intersecting the conveyance direction of the packaged object in the cylindrical film formed into a cylindrical shape by A packaging horizontal sealer for forming a packaging body in which the packaging material supplied by the unit is individually packaged for each packaging material, and the packaging horizontal sealer is any of the packaging horizontal sealers described above It is characterized by that.

  In the packaging device having the above configuration, when the horizontal seal portion is formed by sandwiching the cylindrical film between the pair of horizontal sealer bodies for packaging, the vertical seal portion of the sealing surface of at least one of the horizontal sealer bodies for packaging In the region that overlaps with the inner side of the package, a notch is formed in the region that overlaps with the vertical seal, so the portion that corresponds to the inner side of the package in the region that overlaps with the vertical seal is avoided from being heated and welded. Since the unwelded part is a part corresponding to the inner side of the package, when the vertical seal part and the opposite surface are gripped with fingers, the horizontal seal part is peeled off. It is easy to peel off the horizontal seal part.

  Moreover, according to the packaging apparatus of the said structure, the packaging body which is easy to peel a horizontal seal part can be formed continuously. According to the packaging device having the above-described configuration, the inner side of the package is widened in the portion that is not welded by the notch, and thus the lateral seal portion can be easily peeled off. Furthermore, according to the said structure, since the part which is not welded used as the handle at the time of peeling a horizontal seal part is formed in a package body, it is easy to peel a horizontal seal part by that much.

  According to the packaging horizontal sealer according to the present invention, when the horizontal seal portion is formed by sandwiching the tubular film between the pair of packaging horizontal sealer bodies, the sealing surface of at least one packaging horizontal sealer body In the region overlapping with the vertical seal portion, a notch is formed in the portion corresponding to the inner side of the package, so in the region overlapping with the vertical seal portion, the portion corresponding to the inner side of the package is heated. Since it is avoided and not welded, such a part that is not welded is a part corresponding to the inner side of the package, so that the vertical seal part and the opposite surface are gripped with fingers and the horizontal seal part. This is a starting point when peeling, and it is easy to peel off the lateral seal portion of the package.

  According to the packaging device of the present invention, since the unwelded portion is formed in the portion corresponding to the inner side of the package, the vertical seal portion and the opposite surface are gripped with fingers and the lateral seal is formed. It becomes a start when the part is peeled off, and the lateral seal part of the package is easily peeled off.

It is a side view showing the whole packaging device composition concerning one embodiment of the present invention. It is a perspective view of the package manufactured using the packaging apparatus. It is a bottom view (figure seen from the seal surface side) of the horizontal seal body on the same upper side. It is a side view of the same horizontal seal body. It is principal part sectional drawing of the horizontal seal body of the same upper side. It is the bottom view which added the figure which expanded the principal part of the horizontal seal body of the same upper side. It is principal part sectional drawing of the package manufactured using the packaging apparatus. It is a welding state figure in the horizontal seal part of the package manufactured using the packaging device. It is a perspective view showing the state before opening of the package manufactured using the packaging apparatus. It is a bottom view of the upper side horizontal seal body showing another embodiment of the present invention. It is a bottom view of the upper side horizontal seal body showing another embodiment of the present invention.

  Hereinafter, an embodiment of a packaging device and a packaging horizontal sealer according to the present invention will be described. The packaging device according to the present embodiment is characterized by the packaging horizontal sealer of the seal portion, and the other configuration is a general packaging device of this type. Here, first, a schematic configuration of the packaging device 1 will be described with reference to FIG. The packaging device 1 includes a transport unit 2, a homer 3, a film supply unit 4, a vertical seal forming unit for packaging (also referred to as “center seal forming unit”) 5, a feeding unit 6, and a horizontal seal forming unit (“end seal forming unit”). 7) in order from the upstream side in the transport direction of the film F to the downstream side in the transport direction.

  The homer 3 is a portion that forms the long film (laminated film is used) F supplied from the film roll Fr through the film supply unit 4 into a tubular shape (tube shape). The packaging vertical seal forming portion 5 includes a packaging vertical sealer 50, and is a portion formed by welding (sealing) both edge portions of the film F formed into a cylindrical shape by the homer 3 to form the cylindrical film F1. The conveyance part 2 is a part which can supply the to-be-packaged object 8 in the cylindrical film F1 formed in the cylinder shape with the vertical sealer 50 for packaging. The sending part 6 is a part that sends the article to be packaged 8 housed in the tubular film F1 together with the tubular film F1 to the horizontal seal forming part 7 arranged on the downstream side thereof.

  The horizontal seal forming unit 7 includes a packaging horizontal sealer (in this embodiment and the following embodiments, simply referred to as “horizontal sealer”) 70. The horizontal sealer 70 is configured to form a strip-shaped packaging horizontal seal portion (referred to simply as “lateral seal portion” in the present embodiment and the following embodiments) F10 as shown in FIG. 2 on the tubular film F1. Has been. That is, the horizontal sealer 70 forms a horizontal seal portion F10 on the cylindrical film F1 in the width direction B intersecting the longitudinal direction L of the cylindrical film F1 that is the conveyance direction of the article 8 to be packaged. The packaged body F100 is formed by packaging the article to be packaged 8 supplied into the tubular film F1 for each article to be packaged 8.

  Returning to FIG. 1, the horizontal sealer 70 is used as a rotary horizontal sealer. The rotary sealer includes a pair of packaging horizontal sealers 71 and 72 (upper packaging horizontal sealer 71, lower packaging horizontal sealer 72), which will be described later, as indicated by phantom lines in the horizontal seal forming portion 7. Is a type configured to be rotatable around the sealer shafts 71a and 72a in synchronization with the sealer shafts 71a and 72a.

  In other words, the horizontal sealer 70 includes a pair of packaging horizontal sealer bodies (simply referred to as “horizontal sealer bodies” in the present embodiment and the following embodiments) 71 and 72 for forming the package F100. . The horizontal sealer bodies 71 and 72 are arranged so as to correspond to the tubular film F1 at the respective upper and lower positions. In the horizontal sealer bodies 71 and 72, portions other than the notch 79 described later are the same as the conventional configuration. Therefore, the overall schematic configuration of the horizontal sealer bodies 71 and 72 will be described here with reference to FIGS. Note that these drawings show one (upper) horizontal sealer body 71 of the horizontal sealer bodies 71 and 72, but the basic configuration of the horizontal sealer bodies 71 and 72 is the same. As for the general configuration, the description of the horizontal sealer body 71 is also used as the description of the horizontal sealer body 71.

  The horizontal sealer body 71 has a substantially rectangular parallelepiped sealer body 73 and the tubular film F1 opposed to the tubular film F1 from above and below (the horizontal sealer body 71 is from above and the horizontal sealer body 72 is from below). And a sealing surface 75. In the sealer main body 73, mounted portions 73 </ b> A that are attached to a guide portion (not shown) that guides the horizontal sealer body 71 to rotate are extended to both end portions in the width direction B of the sealer main body 73. .

  A groove-shaped recess 77 for mounting a cutter (not shown) that cuts the tubular film F1 along the width direction B is formed at an intermediate portion in the longitudinal direction L of the seal surface 75 of the horizontal sealer body 71. The recess 77 is formed over the entire area between both ends of the seal surface 75 in the width direction B. The seal surfaces 75 are disposed on both sides of the recess 77.

  In other words, the two sealing surfaces 75 are arranged in the longitudinal direction L of the cylindrical film F1, that is, the upstream side in the transport direction and the downstream side in the transport direction via the recess 77. That is, the seal surface 75 includes the seal surfaces 75A and 75B on the upstream side in the transport direction and the downstream side in the transport direction with the recess 77 interposed therebetween. Each of the sealing surfaces 75A and 75B is configured to be able to rise to a temperature sufficient to weld the film F.

  As shown in FIG. 5, the seal surfaces 75A and 75B on the upstream side in the transport direction and the downstream side in the transport direction with the concave portion 77 interposed therebetween are meshed laterally shaped with uneven shapes adjacent to each other in the longitudinal direction in the width direction. . In each of the seal surfaces 75A and 75B, the imaginary line connecting the centers in the height direction of the unevenness is a curved surface so that the height on the concave portion 77 side is increased because the sealer body 73 rotates. Is formed. The above is the basic configuration of the horizontal sealer body 71, and the horizontal sealer body 72 has the same basic configuration. Even if the seal surfaces 75A and 75B are meshed and have a horizontal shape, the horizontal seal portion F10 only has a horizontal shape, and the horizontal seal portion F10 is formed in a belt shape.

  The notch 79 is formed in at least one of the seal surfaces 75 of the horizontal sealer bodies 71 and 72. In the present embodiment, a notch 79 is formed in the seal surface 75 of one horizontal sealer body 71 (the heated upper side sealer body 71). The notch 79 has a package F100 (see FIG. 2) on the seal surface 75 in a region overlapping with a vertical seal portion (also referred to as “center seal portion”) F11 (see FIG. 2) when the horizontal seal portion F10 is formed on the tubular film F1. 2)). In the present embodiment, the notches 79 are respectively formed on the seal surface 75A on the upstream side in the transport direction and the seal surface 75B on the downstream side in the transport direction, which are arranged via the recesses 77.

  Specifically, the notch 79 formed on the seal surface 75A on the upstream side in the transport direction is disposed on the end side of the seal surface 75A on the upstream side in the transport direction, and is formed on the seal surface 75B on the downstream side in the transport direction. 79 is disposed on the end side of the seal surface 75B on the downstream side in the transport direction.

  As shown in FIGS. 3 and 6, the notch 79 formed in the seal surface 75A on the upstream side in the transport direction has a substantially triangular shape with the upstream edge in the transport direction of the seal surface 75A as the base and the downstream side in the transport direction as a pointed portion. It is formed into a shape. The notch 79 formed in the seal surface 75B on the downstream side in the transport direction is formed in a substantially triangular shape in plan view, with the downstream side edge in the transport direction of the seal surface 75B being the base and the upstream side in the transport direction being a pointed portion. ing.

  The cutouts 79 formed in any of the seal surfaces 75A and 75B have the same shape, are continuous in the width direction of the seal surfaces 75A and 75B, and within the formation range B1 shown in FIG. 3 and FIG. The numbers are different, but they are all the same shape and the same size. The formation range B1 is disposed near the center in the width direction of the seal surfaces 75A and 75B. This formation range B1 is a region including a region that overlaps with the vertical seal portion F11 when the horizontal seal portion F10 is formed. In other words, the formation range B1 includes a region that overlaps with the vertical seal portion F11 when the horizontal seal portion F10 is formed, and does not extend over the entire area of the horizontal seal portion F10. More specifically, the center C in the width direction B of the formation range B1 is a position substantially corresponding to the base end portion (continuous position) of the vertical seal portion F11 with respect to the horizontal seal portion F10. The formation range B1 is distributed with a uniform distance on both sides of the width direction B with respect to the center C of the width direction B.

  As shown in FIG. 5, the side view shape of each notch 79 is formed in a substantially triangular shape with the inclined line 9 inclined so that the concave portion 77 side approaches the surfaces of the seal surfaces 75A and 75B. In other words, the edge side is deep and the tip side is shallow. The distance δ from the edge of each notch 79 to the tip is set to be 1/5 to 1/3 of the length L1 along the conveying direction in the seal surfaces 75A and 75B. Further, as shown in FIG. 6, each notch 79 is formed in an isosceles triangle having a vertex angle θ of 90 to 120 ° in plan view (viewed from the seal surface 75 side). Yes.

  In the packaging apparatus 1 configured as described above, the film F supplied from the film roll Fr to the homer 3 via the film supply unit 4 is formed into a cylindrical shape by the homer 3 and formed into a cylindrical shape by the transport unit 2. The article to be packaged 8 is conveyed toward the inside of the film F, and both edges of the film F are welded by the packaging vertical sealer 50 of the packaging vertical seal forming section 5 so that the film F becomes the cylindrical film F1. The At this time, the vertical seal portion F11 is formed at the substantially center in the width direction of the tubular film F1.

  Then, the cylindrical film F1 is sent to the horizontal seal forming unit 7 together with the article 8 by the feeding unit 6, and the horizontal sealer bodies 71 and 72 rotate around the sealer shafts 71a and 72a in the horizontal seal forming unit 7. With the operation, the sealing surface 75 of the horizontal sealer body 71 that has risen to a predetermined temperature and the sealing surface 75 of the horizontal sealer body 72 sandwich the tubular film F1 with a predetermined pressure from above and below, A strip-shaped lateral seal portion F10 along the width direction B is formed on the tubular film F1, and the tubular film F1 is closed. Moreover, the two continuous cylindrical films F1 are melted by the cutter to form one package F100 in which the articles to be packaged 8 are individually packaged.

  And the notch 79 is formed in the sealing surface 75 of one side sealer body 71, and the notch 79 seals in the area | region which overlaps with the vertical seal part F11 at the time of formation of the horizontal seal part F10 to the cylindrical film F1. The surface 75 is formed in a portion corresponding to the inner side of the package F100. In the present embodiment, the notch 79 formed on the upstream side in the transport direction is formed in a substantially triangular shape with the upstream edge of the seal surface 75A in the transport direction as the base and the downstream side in the transport direction as a pointed portion, or in the transport direction. The notch 79 formed in the downstream seal surface 75B is formed in a substantially triangular shape in plan view, with the downstream end of the seal surface 75B in the transport direction being the bottom and the upstream side in the transport direction being the tip.

  For this reason, even if the tubular film F1 is sandwiched between the horizontal sealer bodies 71 and 72 from above and below, the portion of the film F corresponding to the notch 79 does not contact the seal surfaces 75A and 75B of the horizontal sealer bodies 71 and 72. It becomes a part which is not welded and the horizontal seal part F10 is not formed. And the formation range B1 in which the notch 79 is formed is an area including an area overlapping with the vertical seal part F11 when the horizontal seal part F10 is formed, as shown in FIG.

  When the horizontal sealer F10 is formed, if pressure is applied from the horizontal sealer bodies 71 and 72 in a state where the formation region overlaps with the vertical seal part F11, the pressure by the horizontal sealer bodies 71 and 72 is applied to other horizontal seal parts. It becomes a strong state with respect to the formation region (region not overlapping with the vertical seal portion F11), and the strength of welding of the horizontal seal portion F10 is increased accordingly.

  However, even if the tubular film F1 is sandwiched between the horizontal sealers 71 and 72 from above and below, the portion of the film F corresponding to the notch 79 is not welded and the horizontal seal portion F10 is not formed as described above. It is. Since the notch 79 has a substantially triangular shape, specifically, a portion that is not welded (a portion that is not sealed) is a substantially triangular shape that continues in the width direction B as shown in FIG.

  The shape of the non-welded portion F10a that is not specifically welded will be described. In the formation range B1, the length in the width direction B of the region that is not welded as the inner end of the package F100 is long, and the region that is not welded as far as the outer side in the longitudinal direction L. The length in the width direction B is shortened. In the formation range B1, the non-welded portion F10a is forcibly formed continuously in the width direction B in this way. In the lateral seal portion F10, the non-welded portion F10a is formed in a substantially triangular shape continuous in the width direction B.

  To open the package F100, as shown in FIG. 9, in the vicinity of the horizontal seal portion F10 in the vertical seal portion F11, and in the vicinity of the horizontal seal portion F10 on the surface opposite to the vertical seal portion F11 of the package F100. Is gripped with fingers and pulled in the direction of the arrow to peel off the lateral seal portion F10. At this time, since the portion of the package F100 that is not welded by the notch 79 is in the formation range B1, the non-welded portion F10a is removed even if the welding strength of the lateral seal portion F10 in this region is increased. As a hook, opening can be started.

  And in formation range B1, if the length of the width direction B of the area | region which is not welded as much as the inner side end of the package F100 is long, it will be easy to open, and if the formation range B1 strongly welded can be opened, other parts will be as before. The welded part can be peeled off with force. Moreover, since the lateral seal portion F10 is performed with a general hermeticity, it is easy to open the lateral seal portion F10 while ensuring the necessary sealability.

  If the package F100 is opened in this way, it is not necessary to break the package F100 in the longitudinal direction L. In other words, unlike the prior art, it is not necessary to form a cut or the like that becomes the opening of the opening on the outer side edge of the lateral seal portion F10 of the package F100. For this reason, even after opening the package F100, the bag shape can be maintained, and even if a part of the package 8 remains inside, the package 8 is stored in the original shape of the package F100. Can do.

  The present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention. The same applies to the specific configuration of each part. The horizontal sealer 70 in the above embodiment has been described as being used as a rotary horizontal sealer. However, for example, the horizontal sealer bodies 71 and 72 of the horizontal sealer 70 can be applied even if they are of the box motion type that moves in the horizontal seal forming portion 7 of FIG.

  Even in this case, as shown in FIG. 10, the notches 79 are respectively formed on the seal surface 75 </ b> A on the upstream side in the transport direction and the seal surface 75 </ b> B on the downstream side in the transport direction, which are arranged via the recesses 77. Further, the notch 79 formed on the seal surface 75A on the upstream side in the transport direction is arranged at the end side of the seal surface 75A on the upstream side in the transport direction, and the notch 79 formed on the seal surface 75B on the downstream side in the transport direction is The seal surface 75B is disposed at the end side on the downstream side in the transport direction. Since the shape of the notch 79 is the same as that in the above embodiment, the description thereof will not be repeated. Although not shown, the present invention can also be applied to the case where the horizontal sealer body in the horizontal seal forming portion performs a hermetic operation.

  Further, in each of the above-described embodiments, the notch 79 is formed so that the non-welded portion F10a has a substantially triangular shape. However, if the object of easy opening can be achieved while ensuring the necessary sealing properties, the non-welded portion F10a has a generally triangular shape. Instead of a substantially semicircular shape, a substantially rectangular shape, or the like.

  These notches 79 continuous in the width direction B may not all have the same shape, and may be arranged intermittently without being continuous. Furthermore, it does not need to be the same large, it can be set so that it is larger as it goes away from the center side in the width direction B and becomes smaller as it goes away from the center side.

  Further, the formation range B1 may be a region including the entire width of the vertical seal portion F11 as long as it is inside the package F100 in the horizontal seal portion F10 that overlaps the vertical seal portion F11 (however, the horizontal seal portion F10). Not all of the width direction B). Further, the formation range B1 may be a region that includes a connection portion to the horizontal seal portion F10 in the vertical seal portion F11 and that partially overlaps the vertical seal portion F11.

  The seal surfaces 75 of the horizontal sealer bodies 71 and 72 in each of the above embodiments have been described in the case of a meshed horizontal shape in which the uneven shape adjacent in the longitudinal direction extends in the width direction. However, the sealing surface 75 may be a multi-eye used for knurls or a solid surface without unevenness. Even in these cases, the lateral sealing portion F10 is opened by forming the above-described cutout 79. It becomes easy to do. Further, for example, as shown in FIG. 11, the sealing surface 75 is a flat surface (solid surface), and intermittently along the width direction B at the end of the sealing surface 75 on the downstream side in the conveying direction or on the upstream side in the conveying direction. A notch 79 may be formed. In this case, the non-welded portion F10a is intermittently formed along the width direction B in the horizontal seal portion F10 according to the position of the notch 79.

  In each of the above embodiments, one of the horizontal sealer bodies 71 and 72 has been described. However, both the horizontal sealer bodies 71 and 72 may be heated. Although the cutout 79 is formed only on one seal surface 75 of the horizontal sealer bodies 71 and 72, the cutout 79 may be formed on the seal surface 75 of both the horizontal sealer bodies 71 and 72. In this case, the notches 79 formed in the seal surfaces 75 of both the horizontal sealer bodies 71 and 72 are arranged at positions facing each other in the vertical direction. By doing in this way, the film F corresponding to the notch 79 is not welded. Further, the recess 77 may not be formed, and the cutter may be used in a process different from the process of the horizontal seal, and the horizontal seal part F10 may be fused at the middle part in the longitudinal direction.

  In addition, the vertical seal portion F11 is not only formed at the center in the width direction of the package F100 by the packaging vertical seal formation portion ("center seal formation portion") 5, but the vertical seal portion F11 is disposed on the side of the package F100. As for the package F100 formed in the above, the package F100 can be easily opened by forming the horizontal seal portion F10 using the packaging horizontal sealer body 71 (72) provided with the above-described notch 79 on the seal surface 75.

  DESCRIPTION OF SYMBOLS 1 ... Packaging apparatus, 2 ... Conveying part, 5 ... Vertical seal formation part for packaging, 7 ... Horizontal seal formation part for packaging, 8 ... To-be-packaged object, 9 ... Inclined line, 50 ... Vertical sealer for packaging, 70 ... Horizontal sealer , 71, 72 ... Packaging horizontal sealer body, 73 ... Sealer body, 75 ... Seal surface, 75A, 75B ... Seal surface, 77 ... Recess, 79 ... Notch, B ... Width direction, B1 ... Formation range, F ... Film, F1 ... cylindrical film, F10 ... horizontal seal part, F100 ... package, F10a ... non-welded part, F11 ... vertical seal part, L ... longitudinal direction, δ ... distance, θ ... vertical angle

Claims (4)

A cylindrical film in which a vertical seal portion is formed by welding both edge portions along one direction of the film with a vertical sealer for packaging is sandwiched and heated in a width direction intersecting the one direction, and the cylindrical film In addition, by forming a band- like horizontal seal portion having a certain unidirectional length in the width direction and having a straight edge extending in the width direction on both sides in one direction, the packaging in which the packaged items are individually packaged A pair of packaging transverse sealers for forming the body,
The packaging horizontal sealer body includes a sealing surface that faces the cylindrical film and sandwiches the cylindrical film, and at least one of the sealing surfaces of the packaging horizontal sealer body overlaps with the vertical seal portion in the packaging body. A transverse sealer for packaging, characterized in that a plurality of notches having a length not exceeding the length in one direction are formed side by side in the width direction of the seal surface at the edge of the portion corresponding to the inner side. A recess for mounting a cutter that cuts the tubular film along the width direction is formed in one-way intermediate portion of each sealing surface of the pair of transverse sealer bodies for packaging,
The sealing surfaces of the horizontal sealer bodies for packaging are arranged on both sides of the concave portions,
The horizontal sealer for packaging according to claim 1, wherein the notch is formed on both sealing surfaces.   3. The cutout according to claim 1, wherein the cutout is formed in a substantially triangular shape having an edge corresponding to an inner side end of the package body as a base and an outer side of the package body being a pointed portion. Horizontal sealer for packaging. Homer that forms a long film to be supplied into a cylindrical shape,
A vertical sealer for packaging that welds both edges of the film formed into a cylindrical shape by Homer;
A transport unit capable of supplying an article to be packaged in a cylindrical film formed into a cylindrical shape by a vertical sealer for packaging;
In order to form a package in which a package supplied by the transport unit is individually packaged for each package by forming a strip-like horizontal seal portion on the cylindrical film in a direction intersecting the transport direction of the package With a horizontal sealer for packaging,
The packaging horizontal sealer is the packaging horizontal sealer according to any one of claims 1 to 3.

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