JP6074451B2 - Film interlocking mechanism and packaging machine - Google Patents

Description

  The present invention relates to a mechanism for processing a film, for example, a film interlocking mechanism used in a cutting device for forming an opening cut in a packaging film. Moreover, it is related with the packaging machine provided with this film interlocking mechanism.

  Patent Document 1 below describes a cutting device for forming an opening cut at a predetermined position of a packaging film in the packaging machine in the course of conveyance of the packaging film. The cutting device includes a pair of die rolls that sandwich the packaging film from both sides. A cutting blade is provided on the peripheral surface of one die roll, and the other die roll has the peripheral surface as a receiving surface. One die roll is rotationally driven by a drive mechanism for rotating the die roll around a rotation axis. Since one die roll is provided with a cutting blade, one die roll must be driven, and therefore has a drive mechanism.

  Patent Document 1 describes that instead of providing a drive mechanism directly on one die roll, it is also possible to drive one die roll using the power of a separately provided drive mechanism. . In any case, one die roll needs to be driven.

JP 2003-63557 A

  By the way, when driving one die roll using the power of the drive mechanism provided separately, the connection mechanism which connects this drive mechanism and the rotating shaft of one die roll is required. However, when the opening cut is formed in the packaging film with the cutting blade after the above configuration, it is difficult to synchronize the drive mechanism and the cutting blade, and the accuracy of the formation position of the opening cut is lowered. Resulting in. Such a problem is not limited to a packaging machine, but is common to all devices that perform processing on a film at a processing unit.

  In view of such circumstances, the present invention has a film interlocking mechanism in which the operation of the processing unit can be accurately synchronized with other drive mechanisms and can accurately and reliably process a film, and a packaging machine including the film interlocking mechanism. The issue is to provide

The film interlocking mechanism of the present invention includes a pair of opposing members that are disposed at opposing positions on one side and the other side of the film and that have processing portions that process the film and sandwich the film, and the pair of opposing members Contact / separation means for contacting / separating at least one of the processed portions with respect to the film, guide means for guiding the pair of opposing members in the film traveling direction with the traveling force of the film, and the pair of opposing members for the film And a return means for returning to the upstream side in the running direction, and the pair of opposing members, when at least one processed part comes into contact with the film and is sandwiched between the one side and the other side of the film, along with the running of the film, the downstream side in the running direction is guided by the guide means to, release the film, especially to be returned by the running direction upstream a return means for urging the side spring of the film to the running direction upstream side of the film It is set to.

In the film interlocking mechanism configured as described above, when the pair of opposing members sandwich the film from the one side and the other side, the pair of opposing members are guided to the downstream side in the running direction of the film by the guiding means by the running force of the film, While the pair of opposing members sandwich the film from the one surface side and the other surface side and move to the downstream side in the traveling direction together with the film by the traveling force of the film, the film is processed by the processing portion, and the pair of opposing members When the member releases the film, the pair of opposing members are returned to the upstream side in the traveling direction of the film by a spring as a return means. Moreover, according to this structure, the drive part for returning a pair of opposing member to the traveling direction upstream of a film becomes unnecessary, and a pair of opposing member can be returned to the traveling direction upstream of a film by simple structure. .

  In this way, the pair of opposing members move in the traveling direction by the traveling force of the film and the processing portion processes the film, so that the processing time in the processing portion is given in accordance with the movement of the pair of opposing members. In addition, since the pair of opposing members are not connected to other driving means and move, a configuration for synchronizing with the driving means is unnecessary.

  In the film interlocking mechanism of the present invention, the contact / separation means can employ a configuration that is a cylinder device that contacts and separates one processed portion of the pair of opposing members from the film. According to this structure, labor saving is achieved compared with the case where the processing unit is brought into contact with the film using the motor as a driving device.

  The film interlocking mechanism of this invention is used for a packaging machine, and the process part can employ | adopt the structure provided with the cutting blade for forming a notch in the predetermined position of a film. According to this configuration, a cut is formed in the film by the cutting blade, and the cut can be used as a trigger for opening the packaging film when the film is used as a packaging film.

  The packaging machine of the present invention is characterized in that any of the above is provided with a film interlocking mechanism. According to the packaging machine having the above-described configuration, the pair of opposing members move in the traveling direction by the traveling force of the film and the processing unit processes the film, so that the processing time in the processing unit can move the pair of opposing members. The pair of opposing members are provided correspondingly and are not connected to other driving means and move, but are configured to move in the running direction by the running force of the film. Although it is not necessary, it is possible to form, for example, a cut in the film, print on the film, or attach a label to the film by the processing unit.

  According to the film interlocking mechanism and the packaging machine of the present invention, the operation of the processing unit can be accurately and easily synchronized with other drive mechanisms, and the processing by the processing unit can be accurately and reliably performed on the film.

It is a schematic side view showing the whole structure of the packaging machine which used the film interlocking mechanism which concerns on one Embodiment of this invention for the notch formation part. It is the same schematic front view. It is the same schematic plan view. It is a perspective view of the package manufactured using the packaging machine. It is a whole side view of the notch formation part. It is the same whole top view. It is the same whole front view. (A) is the principal part side view of a notch formation part, (b) is a front view of an upper clamping member and a lower clamping member. (A) is the principal part side view of the state which the outer cylinder member contacted the packaging film, (b) is the side view of the state in which the upper clamping member contacted the packaging film. (A) is the principal part side view of the state in which the cutting blade was inserted in the packaging film, (b) is the side view of the state in which the upper clamping member contacted the packaging film. (A) is a side view of the main part in a state where the cutting blade is inserted into the packaging film and moved to the downstream side in the delivery direction together with the packaging film, and (b) is a state where the upper clamping member is in contact with the packaging film. FIG. (A) is the principal part side view of the state in which the cutting blade left | separated from the packaging film, (b) is the side view of the state in which the upper clamping member separated from the packaging film.

  Hereinafter, an embodiment of a film interlocking mechanism according to the present invention will be described. Since the film interlocking mechanism in this embodiment is incorporated in a packaging machine, the schematic configuration of the packaging machine will be described first. As shown in FIGS. 1 to 3, the packaging machine 1 includes a cut forming portion 2, a bending processing portion 3, a cutting portion 4, and a pasting portion 5.

  The notch forming part 2 is a predetermined interval in the delivery direction of the packaging film 7 while the packaging film 7 as a shrink film is being sent (conveyed) while receiving tension through the plurality of rollers R1 from the film roll 6. Each has a configuration for forming an opening notch (hereinafter simply referred to as “notch”) 8 shown in FIG. 2. This notch 8 is a part that becomes a trigger for opening the package 10 after shrink-wrapping the article 9 (see FIG. 4). In the present embodiment, the film interlocking mechanism is used in the cut forming portion 2.

  The folding processing unit 3 has a configuration for bending the opened label tape 11 sent from the tape roll 12 of the opened label tape 11. The cutting unit 4 has a configuration for cutting the sent open label tape 11 so as to have an appropriate length as the open label 13 to be attached to the region where the cut 8 is formed. The affixing unit 5 has a configuration for affixing the unsealing label 13 to an area of the packaging film 7 where the cuts 8 are formed.

  The notch forming part 2, the bending process part 3, the cutting part 4, and the sticking part 5 constitute a label sticking device. This label sticking apparatus is unitized and is detachable from the packaging machine 1. The packaging machine 1 in the present embodiment is a shrink wrapping machine, and the label sticking device can be exchanged as part of the packaging machine 1. In addition to the label applicator as the packaging machine 1, the packaging film 7 is wrapped with the foamer 60 after the packaging film 7 is wrapped with the former 60 for forming the packaging film 7 into a cylindrical shape. It is equipped with cutting tools, shrink tunnels, etc. that melt every time.

  Next, the cut forming part 2 will be described in detail. As described above, the cut forming unit 2 includes a film interlocking mechanism. The film interlocking mechanism includes a pair of opposing members. The pair of opposing members have processing portions that are disposed at opposing positions on the one surface side and the other surface side of the packaging film 7 and process the packaging film 7, and the packaging film 7 is disposed on the one surface side and the other surface. It is sandwiched by the side. The film interlocking mechanism includes contact / separation means for contacting and separating at least one processed portion of the pair of opposing members with respect to the packaging film 7. The film interlocking mechanism includes guide means for guiding the pair of opposing members in the sending direction of the packaging film 7 with the traveling force of the packaging film 7. The film interlocking mechanism further includes return means for returning the pair of opposing members to the upstream side in the delivery direction of the packaging film 7.

  The processing section includes a pair of opposing members, and the pair of opposing members includes a cutting blade 14 and a receiving base 15, a receiving base 15 and an outer cylinder member 18 which will be described later. Moreover, a pair of opposing member is provided with the clamping member mentioned later. The cradle 15 is a common member that serves both as an opposing member and a part of the processing portion. The contacting / separating means is a cutting blade cylinder device 17 described later. The guide means is a guide member 22A and a guide rail 22B described later. The return means is a spring 24 described later.

  The cut forming part 2 is arranged in the middle of the delivery path of the packaging film 7 delivered from the film roll 6. That is, it is disposed downstream in the delivery direction with respect to the film roll 6 and upstream in the delivery direction with respect to the sticking portion 5.

  As described above, the pair of opposing members are cut in such a manner that the packaging film 7 is moved in conjunction with the moving force of the packaging film 7 by sandwiching the packaging film 7 between the front surface as one surface and the back surface as the other surface. A blade 14 and a cradle 15 are provided. Further, the pair of opposing members are the above-mentioned clamping members, and include a lower clamping member 37 arranged side by side on the cradle 15 and an upper clamping member 38 arranged side by side on the outer cylinder member 18 described later. The cutting blade 14 and the upper clamping member 38 are arranged on the front surface side of the packaging film 7, and the receiving table 15 and the lower clamping member 37 are arranged on the rear surface side of the packaging film 7.

  The cutting blade 14 is supported by the blade support portion 16 through an attachment base 16A so as to be movable up and down. The blade support portion 16 includes the cylinder device 17 for the cutting blade, and a mounting base 16A is attached to the tip thereof. The cutting blade 14 is moved up and down as the cutting blade cylinder device 17 expands and contracts. The cutting blade 14 is housed in the outer cylinder member 18 in the upper position. The tip of the blade base 14A of the cutting blade 14 is a portion that forms the cut 8 in the packaging film 7, and the tip is cut obliquely.

  The outer cylinder member 18 is attached to the mounting base 16A via a first spring 18A that can be expanded and contracted in the vertical direction. The outer cylinder member 18 is provided so as to be externally fitted to a blade base 14A provided with a cutting blade 14 at the lower end. The first spring 18A is for separating the outer cylinder member 18 in a direction in which the outer cylinder member 18 is spaced downward from the mounting base 16A, and the cutting blade cylinder device 17 is contracted (the outer cylinder member 18 is a packaging film). 7), the outer cylinder member 18 is separated from the mounting base 16 </ b> A and covers the cutting blade 14.

  The cradle 15 is supported by the cradle support part 19 via the support base 20. The cradle 15 is disposed at a position that is constantly opposed to the cutting blade 14 in the vertical direction. The cradle 15 includes an insertion recess 21 into which the cutting blade 14 can be inserted.

  The outer cylinder member 18 and the cutting blade 14 can be moved toward and away from the packaging film 7, while the cradle 15 can be reciprocated only in the horizontal direction without moving up and down. The upper end surface 15 a of the cradle 15 is always in contact with the back surface of the packaging film 7. That is, the packaging film 7 is sent out so as to slide on the upper end surface 15 a of the cradle 15.

  The cradle support portion 19 includes a guide member 22A (guide bar) that guides the cradle 15 so as to reciprocate in the horizontal direction, and a guide rail 22B. The cradle support unit 19 includes one side wall 23 that restricts the position of the cradle 15 on one side (upstream in the sending direction) on one side with respect to the support base 20. The cradle support portion 19 includes the second spring (biasing means) 24 that urges the cradle 15 to one side. The second spring 24 is disposed so as to externally fit the guide member 22A disposed between the side portion of the cradle 15 and the other side wall 25 provided on the other side with respect to the support base 20 of the cradle support portion 19. Yes. The guide rail 22 </ b> B is disposed between the one side wall 23 and the other side wall 25 on the cradle support portion 19. The cradle support portion 19 can reciprocate along the packaging film 7 along the guide rail 22B.

  The cradle support portion 19 includes a regulating member 26 (a bowl-shaped member) for regulating the amount of movement of the cradle 15 to the other side. The regulating member 26 penetrates the other side wall 25 in the horizontal direction and is laterally extended. It is comprised so that the position of can be adjusted.

  The support base 20 includes a connection member 27 that is connected to the blade support portion 16, and the blade support portion 16 and the support base 20 are connected in the vertical direction by the connection member 27. Since the support base 20 and the blade support portion 16 are connected by a connecting member 27, the cutting blade 14 and the receiving base 15 are configured to be able to reciprocate in synchronization with the horizontal direction.

  The upper clamping member 38 is attached to the upper plate 27 </ b> A of the connecting member 27 via the clamping member cylinder device 40. The upper clamping member 38 is formed in a rectangular parallelepiped shape, and is configured to come into contact with and separate from the upper surface of the packaging film 7 by driving the clamping member cylinder device 40. A lower surface 38 a that is a flat surface of the upper clamping member 38 is in contact with and separated from the surface of the packaging film 7. The clamping member cylinder device 40 is driven in synchronization with the cutting blade cylinder device 17.

  The lower clamping member 37 is attached to the upper end portion of the lower clamping member 37 via an attachment member 41 erected in the vertical direction on the support base 20. Similarly to the upper clamping member 38, the lower clamping member 37 is formed in a rectangular parallelepiped shape, and its upper surface 37a is formed in a flat surface. The upper surface 37a is set to be flush with the upper end surface 15a of the cradle 15, and the upper surface 37a of the lower clamping member 37 faces the lower surface 38a of the upper clamping member 38 in the vertical direction.

  2 and 3, the bending processing unit 3 is located above the holding unit 29 that holds the opening label tape 11 in a rotatable manner, and the opening label tape 11. The guide part 30 that guides in the feeding direction on its non-adhesive surface (the lower surface in the figure), and the one side region 28 that does not reach half the width of the unsealed label tape 11 guided by the guide part 30 11a is raised up toward the other side in the width direction so that the two sides approach each other, and one side in the width direction of the opened label tape 11 raised at the upright portion 31 is placed between the adhesive surfaces 11a of the opened label tape 11. And a bent portion 32 that is bent so as to overlap.

  The opening label tape 11 is deformed so that the one side region 28 rises by the guide plate 35 of the rising portion 31, and the rising base end is brazed by the guide plate 35 and the flanged roller 36 disposed opposite thereto. The side region 28 is pressed in the direction of the adhesive surface 11a by the folded piece provided in the bent portion 32, and is sandwiched between the upper roller 45 and the lower roller 46 arranged on the downstream side in the feeding direction of the folded piece, and is bent sharply. Instead, they are sequentially brought close to the adhesive surface 11a and attached to the adhesive surface 11a. For this reason, the one side area | region 28 can be stuck on the adhesion surface 11a, without giving an excessive force to the one side area | region 28. FIG.

  The cutting part 4 is arranged on the downstream side in the delivery direction of the unsealed label tape 11 with respect to the bending part 3. The cutting unit 4 includes a suction unit 47, a cutting blade 48, and a cutting blade drive unit 49. In the cutting part 4, the opening label tape 11 whose one side region 28 is bent in the bending part 3 is adsorbed so as to be sequentially applied to the outer peripheral surface of the drum body 52 of the adsorption part 47 and adsorbed. The tape 11 is cut to the size of the opening label 13 when the cutting blade 48 driven by the cutting blade drive unit 49 enters the groove 56 formed on the outer peripheral surface of the drum main body 52.

  The affixing part 5 is disposed below the cutting part 4. The sticking unit 5 includes a pressing roller 58 and a push-up mechanism 59 that pushes the pressing roller 58 upward. The pressing roller 58 is disposed at a position corresponding to the center in the circumferential direction of the drum body 52 of the cutting unit 4 (directly below the drum body 52). The lifting mechanism 59 is, for example, a cylinder device, and a pressing roller 58 is attached to the tip of the rod.

  When the push-up mechanism 59 is driven (the cylinder device is extended), the outer peripheral surface of the pressing roller 58 pushes the packaging film 7 upward from below and is sucked by the outer peripheral surface of the drum body 52 on the non-adhesive surface side. The unsealing label 13 that is cut in this way is pressed through the packaging film 7 between the outer peripheral surface of the drum body 52 and the outer peripheral surface of the pressing roller 58, and the adhesive surface 11 a is cut 8 in the packaging film 7. Affixed so as to cover the notch 8 in the region where is formed. The pressing roller 58 intermittently moves upward with respect to the rotation of the drum body 52, thereby sticking the opening label 13 to the packaging film 7.

  The packaging film 7 to which the unsealing label 13 is affixed is sent to the downstream side in the delivery direction while being tensioned by a plurality of rollers R2, and is formed into a bag shape by a homogen 60 having a general configuration. An article 9 to be packaged is inserted into the packaging film 7 in the shape from behind, and packaged as shown in FIG.

  Here, the operation of the cut forming portion 2 for forming the cut 8 in the packaging film 7 will be described in detail with reference to FIGS. The cutting blade cylinder device 17 and the clamping member cylinder device 40 are provided with a marker (not shown) provided at a predetermined interval on the packaging film 7 by a detector (not shown). Detection is performed, and the detection signal is output to drive expansion.

  When the detector detects the marker, the cutting blade cylinder device 17 and the clamping member cylinder device 40 shown in FIG. 8 are contracted, as shown in FIG. The blade cylinder device 17 and the clamping member cylinder device 40 are driven to extend. Then, as shown in FIG. 9B, in the upper clamping member 38 and the lower clamping member, the upper clamping member 38 moves downward, and the lower surface 38 a comes into contact with the surface of the packaging film 7. Thereby, the packaging film 7 is strongly sandwiched between the upper surface 37a of the lower sandwiching member 37 and the lower surface 38a of the upper sandwiching member 38. Further, when the cutting blade cylinder device 17 extends, the outer cylindrical member 18 and the cutting blade 14 move downward together with the mounting base 16A. Then, as shown in FIG. 9A, the lower end surface 18a of the outer cylinder member 18 abuts on the surface of the packaging film 7, and the lower end surface 18a of the outer cylinder member 18 and the upper end surface 15a of the cradle 15 are The packaging film 7 is sandwiched.

  Since the packaging film 7 has moved to the downstream side in the delivery direction, and the support base 20 and the blade support portion 16 are connected in the vertical direction by the connecting member 27, the upper holding member 38 and the lower holding member 37 are connected. The outer cylinder member 18 and the cradle 15 receive the output from the packaging film 7 to the downstream side in the delivery direction. In other words, the pair of opposing members receive a sending output from the packaging film 7 to the downstream side in the delivery direction, and the pair of opposing members guide the guide member 22A and the guide rail 22B against the elastic force of the second spring 24. However, as shown in FIGS. 10 (a) and 10 (b), it moves downstream in the delivery direction.

  When the outer cylinder member 18 is further pressed against the elasticity of the first spring 18A due to the extension of the cutting blade cylinder device 17, an elastic restoring force of the first spring 18A is generated, and the outer cylinder member The packaging film 7 is strongly sandwiched between the lower end surface 18 a of 18 and the upper end surface 15 a of the cradle 15.

  On the other hand, the cutting blade cylinder device 17 further extends, the outer cylinder member 18 is pressed against the elasticity of the first spring 18A, and the outer cylinder member 18 moves so as to approach the mounting base 16A. The blade 14 is exposed (the state in which the outer cylinder member 18 covers the cutting blade 14 is released), the cutting blade 14 further moves down and penetrates the packaging film 7, and the cutting blade 14 receives the cradle 15. Into the insertion recess 21 (see the figure). When the cutting blade 14 enters the insertion recess 21 of the cradle 15, the cutting blade 14 is cut into a position corresponding to the marker portion formed at a predetermined position of the packaging film 7 between the outer cylinder member 18 and the cradle 15. 8 is formed. That is, as shown in FIG. 11, the cutting blade 14 forms the cut 8 in the packaging film 7 when the packaging film 7 is moved.

  When the outer cylinder member 18 and the cradle 15 are moved in the horizontal direction (on the downstream side in the delivery direction) by a necessary stroke, as shown in FIGS. 12A and 12B, the clamping member cylinder device 40 and the cutting blade are used. The cylinder device 17 contracts, and the upper clamping member 38, the outer cylinder member 18, and the cutting blade 14 are detached from the packaging film 7 upward. Then, the upper clamping member 38, the outer cylinder member 18, and the cradle 15 do not receive the output of the packaging film 7, so that the upper clamping member 38, the support 20, and the blade support 16 are connected to the second spring 24. It moves to the upstream side in the delivery direction while being guided by the guide member 22A and the guide rail 22B, and returns to the initial position by the urging force due to the elasticity of.

  The notch forming unit 2 repeatedly operates as described above so that the notch 8 is formed at a predetermined position in the packaging film 7 during the delivery of the packaging film 7.

  The movement of the outer cylinder member 18 and the cradle 15 by a necessary stroke is detected by, for example, a proximity switch. The necessary stroke is a distance corresponding to the time required for the cutting blade 14 to protrude from the outer cylinder member 18 to reliably form the cutting 8. In other words, since the time required for the cutting blade 14 to form the cut 8 in the packaging film 7 can be secured, the cut 8 can be reliably formed even for the moving packaging film 7. can do.

  In the incision forming part 2, when the packaging film 7 is fed while being tensioned by a plurality of rollers R1 with a force drawn to the downstream side of the film roll 6, the packaging film 7 is moved in the feeding direction. Since the notch 8 is formed at predetermined intervals in the sending direction with respect to the packaging film 7 by using the feed output, the cutting force cylinder device 17 is used only for the driving force of the actuator for packaging. A cut 8 can be formed in the film 7. For this reason, power saving can be realized. Further, since the biasing force due to the elasticity of the second spring 24 is used as means for returning the support base 20 and the blade support portion 16 to the initial positions, further power saving can be realized.

  Further, the support base 20 and the blade support portion 16 are moved by the running force of the packaging film 7 so that the cutting blade 14 (processed portion) forms the cut 8 in the packaging film 7, and other driving means. Therefore, there is no need for a synchronization mechanism that synchronizes the operation of the driving means and the cutting blade 14. For this reason, it is possible to accurately form the cut 8 at a predetermined position of the cutting blade 14.

  In the packaging machine 1 according to the embodiment of the present invention, the cut film 8 is cut at predetermined intervals in the sending direction of the packaging film 7 by the cut forming unit 2 while the packaging film 7 is being fed from the film roll 6. On the other hand, the opening label tape 11 delivered from the tape roll 12 is bent by the bending unit 3 with respect to the adhesive surface 11a in the region on one side in the width direction that does not reach half of the width. The opened opening label tape 11 is cut and cut by the cutting section 4 so as to have an appropriate length as the opening label 13 to be attached to the region where the cut 8 is formed in the packaging film 7. The label 13 is affixed to the notch 8 region by the affixing unit 5, and the packaged item 9 is packaged with the packaging film 7.

  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. As an example, the structure of the notch formation part 2 is not limited to the said embodiment. For example, in the above embodiment, the cutting blade 14 is driven by the cutting blade cylinder device 17. However, it is not limited to the configuration using the cylinder device, and may be moved up and down using the rotation of the cam.

  Moreover, in the said embodiment, the upper clamping member 38 and the lower clamping member 37 are used together with the outer cylinder member 18 and the receiving base 15 as a pair of opposing members, and the packaging film 7 is clamped by these pair of opposing members. The transmission output is used. However, the upper clamping member 38 and the lower clamping member 37 can be omitted as long as the packaging film 7 can be clamped only by the outer cylinder member 18 and the cradle 15 and the output can be used.

  In the above embodiment, the proximity switch detects that the outer cylinder member 18 and the cradle 15 have moved by the required stroke. However, instead of obtaining the required stroke using such an electrical signal, the guide member that separates the outer cylinder member 18 from the packaging film 7 when the outer cylinder member 18 and the cradle 15 are moved by the required stroke. It is also possible to provide the outer cylinder member 18 so as to be separated from the packaging film 7.

  In the packaging machine 1 of the said embodiment, the film was used as the packaging film 7, the film interlocking mechanism was used for the cut formation part 2, and it was comprised so that the cut 8 might be formed in the packaging film 7. FIG. However, the film interlocking mechanism is not limited to the configuration in which the notch 8 is formed in the packaging film 7, and it is possible to apply a label to the film, for example, printing on the film, using the output of the film. is there. Since such processing is given a certain time for the film to move a predetermined stroke, the processing can be performed reliably.

  In the said embodiment, the case where the upper (one) opposing member with respect to a film was made into the member which performs a substantial process with respect to a film was illustrated. In addition, the configuration in which the lower (other) facing member moves only in the horizontal direction without moving up and down is illustrated. However, there may be a case where the lower opposing member performs substantial processing on the film, and both opposing members may be configured to substantially process the film. The facing member can also be moved up and down so as to contact and separate from the film.

  DESCRIPTION OF SYMBOLS 1 ... Packaging machine, 2 ... Cutting formation part, 3 ... Bending process part, 4 ... Cutting part, 5 ... Pasting part, 7 ... Film for packaging, 8 ... Cutting, 9 ... Packaged article, 10 ... Packaging 11 ... opening label tape, 13 ... opening label, 14 ... cutting blade, 14A ... blade base, 15 ... cradle, 15a ... upper end surface, 16 ... blade support, 16A ... mounting base, 17 ... cutting blade Cylinder device, 18 ... outer cylinder member, 18a ... lower end surface, 18A ... first spring, 19 ... pedestal support part, 20 ... support base, 21 ... insertion recess, 24 ... second spring, 27 ... coupling member, 28 ... one side region, 37 ... lower clamping member, 37a ... upper surface, 38 ... upper clamping member, 38a ... lower surface, 40 ... cylinder device for clamping member, 41 ... mounting member

Claims (4)

A pair of opposing members that sandwich the film by having a processing portion that is disposed at opposing positions on one side and the other side of the film and that processes the film;
Contact / separation means for contacting / separating at least one processed portion of the pair of opposing members with respect to the film;
Guiding means for guiding the pair of opposing members in the traveling direction of the film with the traveling force of the film;
A return means for returning the pair of opposing members to the upstream side in the running direction of the film,
When at least one processed part comes into contact with the film and is sandwiched between the one side and the other side of the film, the pair of opposing members are guided by the guide means to the downstream side in the running direction along with the running of the film, and when the film is released , A film interlocking mechanism, wherein the film is returned to the upstream side in the running direction of the film by a spring that is a return means for biasing the upstream side in the running direction of the film. The film interlocking mechanism according to claim 1, wherein the contacting / separating means is a cylinder device that contacts and separates one processed portion of the pair of opposing members with respect to the film. It is a film interlocking mechanism used for a packaging machine, Comprising: The process part is a film interlocking mechanism of Claim 1 or Claim 2 provided with the cutting blade for forming a notch in the predetermined position of a film. A packaging machine comprising the film interlocking mechanism according to any one of claims 1 to 3 .

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