JP7056898B2 - Deep drawing packaging machine - Google Patents

Description

The present invention relates to a deep drawing packaging machine.

As one of various packaging forms, there is a deep-drawing type packaging body. The deep-drawing type package includes a container body having a storage recess for storing the packaged object, and a lid member for closing the opening of the container body with the packaged object stored in the storage recess. To take. The deep-drawing packaging machine that manufactures the deep-drawing type packaging body having such a configuration has the following configuration.

The lower film for forming the container body continuously drawn from the raw film is conveyed in the horizontal direction. This horizontal film transport device has a configuration in which, for example, both end edges of the lower film are gripped and clamped by a claw member attached to an endless chain extending in the transport direction. Along with the rotation of the endless chain, the claw member also revolves on a predetermined trajectory and conveys the lower film clamped to the claw portion.

The lower film is vacuum-sucked by a molding device arranged in the middle of transporting the lower film, and a storage recess protruding downward is molded at a predetermined position of the lower film. Then, the packaged object is automatically or manually supplied into the storage recess at a predetermined position on the downstream side of the molding apparatus.

On the other hand, another raw film is installed above the transport line of the lower film, and the upper film for continuously forming the lid member is pulled out from the raw film, and the pulled out upper side thereof. The film is superposed on the lower film at a predetermined position on the downstream side of the supply point of the packaged object.

Further, a sealing device is arranged on the downstream side of the polymerization point of both films, and the sealing device seals the contact portion between the upper film and the lower film. As a result, the packaged object is sealed in the storage recess. After that, a cutter device arranged on the downstream side of the sealing device cuts the sealing portions of both films so that the individual deep-drawn packages are separately manufactured. This kind of deep drawing packaging machine is disclosed in Patent Document 1 and the like.

JP 2014-114306

In the deep drawing packaging machine, the film is conveyed in a state where both sides are clamped, so that the film may hang down and interfere with each other when the upper and lower molds and sealers are opened in the molding device and the sealing device. In the molding device, the packaged object has not yet entered the storage recess, so there is little sagging of the lower film, but especially in the sealing device, the packaged object is in the storage recess, so the film sags due to its weight. It becomes large, and for example, interference with the lower portion of the sealing device that the storage recess is sandwiched between the upper and lower parts is likely to occur.

Further, since the left and right ends of the lower film are clamped by the claw members and the middle in the width direction is in a free state, the amount of sagging increases as the film width becomes wider, and the above problem becomes more remarkable.

In order to solve the above-mentioned problems, the sealing device, which is one of the components of the deep drawing packaging machine of the present invention, is (0) a lower box arranged so as to sandwich the lower film and the upper film. The lower box comprises an upper box, the lower box has a seal box having a plurality of recesses into which the plurality of storage recesses formed in the lower film are inserted, and the upper box is a base member. It has a plurality of heating plates to be stored in the recesses provided on the lower surface side, and the heating plates are rectangular in shape so as to contact and heat different film portions of the upper film so as to heat the outer periphery of the storage recesses. The contact portion between the lower film and the upper film is sandwiched between the heating plate and the upper surface of the seal box to heat and pressurize so that the lower film and the upper film are heat-sealed and adjacent to each other. A predetermined space is provided between the heating plates, and the predetermined space is aligned with the film portions of the lower film and the upper film between the adjacent storage recesses, and the film is unsealed to suppress a decrease in film rigidity. The plurality of heating plates were arranged in the front-rear direction along the film transport direction so as to form a portion, and the unsealed portion was formed in a direction orthogonal to the film transport direction. ..

The lower film and the upper film are located between the upper box and the lower box of the sealing device in a state where they are overlapped with each other, and when the storage recess formed in the lower film reaches the position facing the recess of the sealing box. Pause. Next, the lower box and the upper box come close to each other and sandwich both films. At this time, the storage recess of the lower film is stored in the recess of the seal box. In this state, the heating plate comes into contact with the upper film, and both films are heated and pressurized to heat-seal.

Normally, when a film is heated, it softens and melts and deteriorates, resulting in a decrease in film strength and rigidity. Then, the film portions heated and pressed by sandwiching the lower film and the upper film melt and adhere to each other. At this time, if the thermal expansion / contraction ratios of the lower film and the upper film are different, the film is distorted at the bonded portion. In the present invention, although it is usually composed of one heating plate, a plurality of heating plates smaller than the one heating plate are used, and one processing area of the sealing device is divided into a plurality of small areas. On the other hand, a plurality of heating plates were heat-treated. Further, since a predetermined interval is provided between the plurality of heating plates, there is a film portion between the adjacent heating plates that the heating plates do not come into contact with. Since the film portion is not directly heated by the heating plate, it becomes an unsealed portion, the decrease in film rigidity is suppressed, and distortion does not occur. As a result, the unsealed portion maintains an appropriate strength and suppresses the film from sagging. As a result, when the lower box (seal box) is lowered after the sealing process, the storage recess of the lower film is located above the upper surface of the seal box, and the lower box (seal box) and the lower film interfere with each other. The film can be smoothly conveyed without any problem.

Further, by arranging a plurality of heating plates separately, for example, even if the film is wide or the length before and after processing at one time becomes long, the area of each heating plate becomes small, and the area of each heating plate becomes small. It is possible to eliminate the bias of the sealing pressure due to strain or the like.
A plurality of heating plates are arranged in the front-rear direction along the film transport direction, and the unsealed portion is formed in a direction orthogonal to the film transport direction, so that the unsealed portion crosses the film in the width direction (left-right direction). It is good because the portion formed of the unsealed portion does not hang down at the central portion and can maintain a taut state. This unsealed portion corresponds to the first unsealed portion 50 in the embodiment.

(2) The plurality of heating plates may be arranged on the left and right orthogonal to the film transport direction, and the unsealed portion may be formed in a direction along the film transport direction. This unsealed portion corresponds to the second unsealed portion 51 of the embodiment. By doing so, it is preferable that the sagging in the front-rear direction along the transport direction is suppressed.

(3) A guide rail for supporting the lower film may be arranged below the formed region of the unsealed portion, and a guide groove into which the guide rail enters may be provided on the upper surface of the seal box. By doing so, since the lower film is supported by the guide rail, the occurrence of sagging of the film may be suppressed.

(1) The deep wrapping machine of the present invention is a molding device for molding a plurality of storage recesses with respect to a lower film that is intermittently conveyed with both edges gripped by a claw member, and a downstream of the molding device. The means for coating the upper film on the lower film which is arranged on the side and the packaged object is inserted in the storage recess, and the upper film and a predetermined portion of the lower film are sealed to each other. Deep-drawing packaging provided with a sealing device for sealing the storage recess and a cutter means for cutting a predetermined portion of the upper film and the lower film to produce an individual package having the sealed storage recess. In the machine, the sealing device is the sealing device according to (0), and the cutter means has a horizontal cutter device that cuts in a direction orthogonal to the transport direction and a direction parallel to the transport direction. A vertical cutter device is provided, and the predetermined portion is cut so that the unsealed portion is removed.

(4) A guide rail that supports the lower surface of the lower film may be provided on at least one of the upstream side and the downstream side of the sealing device. By doing so, it is good because the lower film and the upper film are suppressed from dripping. More preferably, the guide rails provided on the upstream side or the downstream side of the sealing device and the guide rails provided in the sealing device are integrated and continuous.

According to the present invention, an unsealed portion having a desired width that is not heated is positively formed on the film, the decrease in film rigidity is suppressed at the unsealed portion, and interference with the lower box of the sealing device is prevented. be able to. Further, by dividing the sealer, it is possible to eliminate the bias of the sealing pressure due to the strain of the sealer even if the film is wide.

It is a front view which shows one preferable embodiment of the deep drawing packaging machine which concerns on this invention. It is the plan view. It is a perspective view which shows the sealing device. It is the cross-sectional view.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. It should be noted that the present invention is not limited to this and can be modified, modified or improved based on the knowledge of those skilled in the art as long as it does not deviate from the scope of the present invention.

1 and 2 show a preferred embodiment of the deep-drawing packaging machine according to the present invention. The deep wrapping machine of the present embodiment includes a lower film supply device 10 arranged on the upstream side, a film transfer device 13 for horizontally transporting the lower film 12 supplied from the lower film supply device 10. The molding device 14 arranged on the upstream side in the middle of transporting the film transport device 13, the packaged object supply unit (not shown) arranged on the downstream side of the molding device 14, and the film transport device 13 are arranged at predetermined positions above. The sealing device 17, in which the upper film supply device 15 and the upper film 16 supplied from the upper film supply device 15 of the film transfer device 13 are sequentially arranged downstream from the covering point X overlaid on the lower film 12. A horizontal cutter device 18, a vertical cutter device 19, and the like are provided.

The lower film supply device 10 is drawn from a rotation support shaft 21 that supports the original roll 20 that is a roll of the strip-shaped lower film 12 and an original roll 20 that rotates integrally with the rotation support shaft 21. It is provided with a mechanism for feeding the lower film 12 to be fed in a predetermined trajectory and supplying the lower film 12 to the film transport device 13.

The film transport device 13 includes a pair of left and right endless chains 13a arranged on the outside of both side edges of the lower film 12, and a large number of claw members 13b attached to the endless chains 13a. The lower film 12 is intermittently conveyed while grasping both edges in the longitudinal direction.

A molding device 14 is arranged on the upstream side of the film transport device 13 during transport. The molding device 14 is a device for molding a storage recess 12a projecting downward at a predetermined position of the lower film 12. The molding apparatus 14 has an upper box 14a and a lower box 14b arranged vertically with the lower film interposed therebetween. Then, in the lower box 14b, a female mold processed into an inner shape that matches the outer shape of the storage recess 12a formed in the lower film 12 is arranged. On the other hand, a hot plate is built in the upper box 14a, and the film portion of the lower film 12 sandwiched between the upper box 14a and the lower box 14b is heated and softened. Then, when the inside of the lower box 14b is vacuum-sucked in the sandwiched state, for example, a predetermined film portion of the lower film 12 comes into close contact with the inner peripheral surface of the female mold, and is molded into the shape of the inner peripheral surface and stored. The recess 12a is molded.

The packaged object supply unit is an area for supplying the packaged object in the storage recess 12a formed by the molding device 14, and for example, the packaged object supply device (not shown) is arranged. This packaged object supply device automatically supplies the packaged object into the storage recess 12a. For example, the packaged object supply device is composed of a transfer robot and includes a suction means as a manipulator of the transfer robot. Then, by the suction means, the predetermined packaged object is adsorbed and held from the group of objects to be packaged waiting next to the film transport device 13, and the packaged object is moved in a predetermined trajectory to supply the packaged object into the storage recess 12a. In addition, instead of the packaged object supply device, it may be supplied manually.

The upper film supply device 15 is an upper side drawn from a rotation support shaft 23 that supports the original fabric roll 22 that is a roll of the strip-shaped upper film 16 and an original fabric roll 22 that rotates integrally with the rotation support shaft 23. A plurality of rollers 24 and the like for feeding the film 16 along a predetermined trajectory and supplying the film 16 so as to be overlapped on the lower film 12 conveyed by the film conveying device 13 are provided. The printing device 25 is arranged in the middle of the movement locus of the upper film 16. The printing device 25 prints the date of manufacture of the packaged object, the expiration date, and the like at a predetermined position on the upper film 16.

The sealing device 17 sandwiches the contact portions of the lower film 12 and the upper film 16 at predetermined positions, that is, the contact portions of the films 12 and 16 around the storage recess 12a from above and below, and heats and seals them. As a result, the packaged object is sealed in the storage recess 12a. The sealing device 17 is provided with a function of sucking and removing the air in the recess, and the air in the recess is sucked and removed before the films 12 and 16 are heat-sealed, so that the object to be packaged is in the storage recess 12a. It may be provided with a function of sealing in a vacuum state, or by providing a function of filling a predetermined gas instead of a function of sucking and removing the inside of the storage recess 12a to create a vacuum, the inside of the storage recess 12a may be filled with nitrogen or the like. It may be replaced with the inert gas of.

The horizontal cutter device 18 includes a cutter blade 18a arranged above and below the film, and a receiving plate 18b. The cutter blades 18a and the receiving plate 18b are configured to move up and down at the same timing by an air cylinder 18c linked to each of the cutter blades 18a and the receiving plate 18b. The horizontal cutter device 18 is a push-cut cutter, and the lower and upper films 12 and 16 are cut along the shape of the blade portion of the cutter blade 18a. The cutter blade is provided with a linear blade for cutting the lower and upper films in the lateral direction (direction orthogonal to the transport direction), and also forms rounded corners in the final package. A blade portion for R-cut may be provided for this purpose.

The vertical cutter device 19 includes a plurality of pairs of upper and lower disk-shaped cutters 19a having rotation axes in a direction orthogonal to the film transport direction, and sandwiches the lower and upper films 12 and 16 between the upper and lower cutters 19a. This cuts parallel to the transport direction. When passing through the vertical cutter device 19, the periphery of the storage recess 12a is cut vertically and horizontally to manufacture individual packages. Further, the left and right side edges of the lower and upper films 12 and 16 are cut and separated by the vertical cutter device 19. Then, the separated both side edges are taken up by the take-up roller 27.

Further, in the present embodiment, the carry-out conveyor 28 is arranged on the carry-out end side of the film transport device 13. The carry-out conveyor 28 is composed of, for example, a belt conveyor, and its transport surface is set to be one step lower than the transport surface of the film transport device 13. The individual packages manufactured through the vertical cutter device 19 are carried out by the carry-out conveyor 28.

In the present embodiment, the lower film 12 uses a relatively hard film material, and the upper film 16 uses a relatively soft film material. As described above, the film materials used for each are different materials, and in particular, the film materials having different degrees of change with heating such as the thermal expansion / contraction rate are used. Further, the lower film 12 and the upper film 16 have a wide film width of, for example, more than 600 mm.

Further, four storage recesses 12a formed in the lower film 12 are provided laterally. Then, the film is intermittently conveyed, and when the film is temporarily stopped, the storage recess 12a is formed by the molding device 14, the lower and upper films 12 and 16 are sealed by the sealing device 17, and the horizontal cutter device 18 is used. Performs the process of cutting the film in the horizontal direction. The unit for performing these processes was 6 columns before and after. As a result, 24 packages (4 horizontal × 6 vertical) are manufactured at a time. In a normal deep-drawing wrapping machine, one row or two rows are processed together in the front and back, but in the present embodiment, by forming six rows in the front and back together, the number of manufactured sheets per unit time is the same film width. However, it can be tripled as compared with the simultaneous processing of two columns. Further, as described above, since the film width is widened to exceed 600 mm, it is possible to increase the number of sheets that can be manufactured at one time even in the lateral direction, so that the number of manufactured sheets per unit time can be increased in this respect as well. ..

Since the number of pieces manufactured at one time is large, the width and the front-rear length of the sealing device 17 are larger than those of the conventional ones. In order to manufacture a beautiful package without loosening the film even if it is made large in this way, in the present embodiment, the configuration as shown in FIGS. 3 and 3 is adopted.

The sealing device 17 includes a lower box 31 and an upper box 32 that are vertically opposed to each other with the lower and upper films 12 and 16 interposed therebetween, and both boxes move up and down according to the film transfer timing. The lower box 31 is configured by inserting and arranging the seal boxes 35 shown in FIGS. 3 and 4 in a bottomed box-shaped outer frame 33 having an open top. The seal box 35 has a box shape that opens upward, and a receiving rubber 36 is attached to the upper top surface thereof, and a predetermined number (24 (4 × 6)) of recesses 37 are formed inside the seal box 35. Further, a partition wall 38 is provided between the recesses 37. In the recess 37, the storage recess 12a of the lower film 12 formed by the molding device 14 during the sealing process is inserted and arranged. Further, although not shown, an exhaust path or the like for performing a degassing process for evacuating the inside of the storage recess 12a is arranged between the outer frame 33 and the seal box 35.

The upper box 32 includes a heating plate 41 arranged so as to be vertically movable on the lower surface side of the base member 40. More specifically, the hanging wall 43 is formed at a predetermined position on the lower surface of the base member 40, and the recess 42 is formed in the region surrounded by the hanging wall 43 on the lower surface side of the base member 40. Then, the heating plate 41 is arranged in the base member 40 in the recess 42. The heating plate 41 moves up and down relative to the base member 40 by a driving means such as a cinder (not shown).

When the base member 40 moves up and down, the heating plate 41 also moves up and down integrally with the base member 40. When the upper box 32 is located at the lowermost position, the lower box 31 also reaches the uppermost position, and the lower and upper films 12 and 16 are sandwiched between the two boxes from above and below. More specifically, the film is sandwiched between the lower end of the hanging wall 43 and the receiving rubber 36 provided on the seal box 35 facing the lower end. Further, the film is sandwiched between the heating plate 41 lowered in such a state and the receiving rubber 36.

The heating plate 41 is made of a material having good thermal conductivity such as aluminum, and is heated to a predetermined temperature by a built-in heater 41a. Then, as described above, in a state where the lower and upper films 12 and 16 are sandwiched between the upper box 32 and the lower box 31, the lowered heating plate 41 comes into contact with the film to heat the film. In particular, since the film portion sandwiched between the receiving rubber 36 and the film portion is heated and pressurized, the film portions of the lower and upper films 12 and 16 are heat-sealed.

In this embodiment, four heating plates 41 are provided in the recess 42. That is, although it is usually composed of one heating plate, the processing area is divided into four to reduce the size and shape of each heating plate 41. As a result, each heating plate 41 seals the package for 6 pieces (2 × 3). In the present embodiment, the number and area to be processed at one time are increased, but the area of each heating plate 41 can be reduced, and the amount of vertical displacement of the center and the periphery of each heating plate 41 due to heating. Can be kept small. Therefore, since the receiving rubber 36 is elastically deformed, for example, even if the small heating plate 41 is deformed so as to be warped by heating, the receiving rubber 36 receives the deformation and is absorbed by the elastic deformation of the rubber 36. Therefore, it is possible to suppress the occurrence of sealing defects and uneven sealing as much as possible.

Further, in the present embodiment, each heating plate 41 is linked to a drive system such as a cylinder that is independently driven, and individually moves up and down with respect to the base member 40. Therefore, each heating plate 41 can appropriately contact the film to heat and pressurize it.

Further, in the present embodiment, the distance between the adjacent heating plates 41 is widened. That is, the distance between the facing peripheral edges of the left and right heating plates 41 in the direction orthogonal to the film transport direction was widened. As a result, the first unsealed portion 50 having a predetermined width is formed in the central portion of the lower and upper films 12 and 16 along the transport direction. In addition, the distance between the facing peripheral edges of the front and rear heating plates 41 in the direction along the film transport direction is widened. As a result, a second unsealed portion 51 is formed at a predetermined position of the film so as to cross in the lateral direction orthogonal to the transport direction of the film.

When the films are heated to heat-seal the lower and upper films 12 and 16, they are usually softened and melted and deteriorated, so that the film strength and rigidity are lowered. Further, the heated and pressurized film portions of the lower and upper films 12 and 16 melt and adhere to each other. At this time, since the lower film 12 and the upper film 16 are made of different materials and have different thermal expansion / contraction rates, the film is distorted at the bonded portion.

In the present embodiment, the first unsealed portion 50 and the second unsealed portion 51 are provided so as to have rigidity without deterioration due to softening / melting due to heating and distortion of the film due to adhesion. , I tried to prevent the film from sagging or distorting. That is, when the lower film 12 is widened, even if the left and right sides are gripped by the claw members 13b and stretched tightly, the film is entirely curved when viewed in the width direction, the center is lowered, and the film hangs down. It ends up. On the other hand, in the present embodiment, for example, the first unsealed portion 50 functions like a beam because it is formed so as to cross the width direction (left-right direction) of the film, and the first unsealed portion 50. The part that formed the shape does not hang down in the central part, and can be maintained in a taut state.

Further, the first unsealed portion 50 that functions like the above beam is formed at a predetermined interval in the front-rear direction, and the film portion between the front-rear and the front-rear first unsealed portion 50 hangs down at the central portion in the width direction. May occur. In the present embodiment, since the second unsealed portion 51 extending back and forth is provided in the central portion of the film so as to pass between the front and rear first unsealed portions 50, the second unsealed portion 51 having the rigidity is used. Even between the front and rear first unsealed parts 50, the central portion is in a state of being taut over the entire length of the front and back. Then, the region partitioned by the first unsealed portion 50 and the second unsealed portion 51 becomes smaller, and the periphery of the small region becomes the rigid first unsealed portion 50, the second unsealed portion 51, and the film. Since there is a claw member 13b that grips the side edge, it is possible to maintain a taut state as a whole and suppress sagging. Therefore, a beautiful package can be manufactured.

Further, the lower and upper films 12 and 16 whose predetermined portions are sealed after passing through the sealing device 17 are conveyed while their left and right sides are gripped by the claw members 13b, and are cooled during the conveying. With this cooling, the lower and upper films 12 and 16 try to shrink, but the left and right sides are sandwiched between the claw members 13b and pulled to the left and right until cooled, and the left and right sides of the film are claws. Since it is sandwiched between the members 13b, it does not extend in the front-rear direction. Therefore, if it shrinks during cooling, the central portion in the width direction may be distorted in the front-rear direction. In particular, when a wide film is used, the distance from both ends to the center becomes long, and this tendency becomes remarkable. In the present embodiment, since the second unsealed portion 51 having rigidity is provided, even if the film is wide, the film is prevented from being distorted during cooling including the central portion.

Further, in the present embodiment, the guide rail 55 is arranged below the central portion of the film so as to extend along the transport direction of the film. The guide rail 55 contacts and supports the lower surface of the lower film 12. By providing the guide rail 55 in this way, even if a wide film is used as in the present embodiment, the central portion (second unsealed portion 51) in the width direction comes into contact with the guide rail 55 and is lowered. Suppress.

Further, the guide rail 55 is installed in a wide range from the upstream side of the sealing device 17 to the downstream side through the sealing device 17. A guide groove 39 is provided at the center of the upper surface of the seal box 35 in the left-right direction so as to extend along the film transport direction. When the lower box 31 and thus the seal box 35 move up, the guide rail 55 enters the guide groove 39, and the lower box 31 does not interfere with the guide rail 55. In the present embodiment, since the distance between the left and right heating plates 41 is widened in order to form the second unsealed portion 51, a guide groove 39 through which the guide rail 55 can enter is provided on the upper surface side of the seal box 35. It will be possible. As a result, the guide rail 55 can be arranged not only on the upstream side of the sealing device 17 but also inside the sealing device 17, and the film can be supported by the guide rail 55 during the heat sealing process. By performing the sealing process while keeping the film as horizontal as possible, it is possible to seal the film neatly. Further, the guide rail 55 is fixedly installed at a predetermined height position, and the lower box 31 moves upward during the sealing process so that the guide rail 55 enters the guide groove 39 formed in the seal box 35. When the lower box 31 and thus the seal box 35 move downward after the sealing process, the guide rail 55 is located above the upper surface of the seal box 35. Since the height of the guide rail 55 is fixed even when the seal box 35 is moved downward, the lower film 12 is supported by the guide rail 55 and does not descend below the guide rail 55. Therefore, in view of this point as well, it is possible to suppress the sagging of the film and suppress the interference between the lower box 31 and thus the seal box 35 with the lower film 12 and the storage recess 12a.

Since the first unsealed portion 50 and the second unsealed portion 51 are unnecessary portions for the final package, each unsealed portion is removed by the horizontal cutter device 18 and the vertical cutter device 19 in the subsequent stage. Cut the appropriate position of the sealing part around the recess so that it can be done.

As described above, in the present embodiment, the film region to be processed once is expanded, the film region is divided into a plurality of (for example, 4), and the heating plates 41 are arranged in each of the film regions, whereby the individual heating plates are arranged. 41 was made smaller. This makes it possible to suppress the amount of warpage of the heating plate 41 during heating.

On the other hand, in order to minimize the number of film parts that are normally discarded without being used in the package, the layout of the recesses formed in the lower film should be such that the peripheral edges of the package located on the front, back, left and right are in contact with each other. Try to get closer to. As a result, when arranging a plurality of (here, four) heating plates 41 as in the present embodiment, the gap between the adjacent heating plates 41 is eliminated, or even if it is possible, it is made as small as possible. On the other hand, in the present embodiment, the space between the adjacent heating plates 41 is positively widened so that the seal portion is formed only by a predetermined width. The predetermined width is a width at which the desired rigidity can be obtained. The desired rigidity can be made so as not to affect the finally manufactured package due to sagging, distortion, or the like of the film.

In the above-described embodiment, four heating plates 41 are provided so as to form one first unsealed portion 50 extending in the left-right direction and one second unsealed portion 51 extending in the front-rear direction along the transport direction. However, the present invention is not limited to this, and the number of installed heating plates 41 and the arrangement layout are arbitrary, and accordingly, the number of installed first unsealed portions 50 and second unsealed portions 51 is two or more. It may be, or only one may be provided. Further, a configuration in which the guide rail 55 is not provided may be adopted.

Although various aspects of the present invention have been described above with reference to embodiments and modifications, these embodiments and explanations have not been made for the purpose of limiting the scope of the present invention, and are intended for understanding the present invention. It should be added that it was provided to contribute. The scope of the invention is not limited to the configurations and manufacturing methods expressly described herein, but also includes combinations of various aspects of the invention disclosed herein. Of the present invention, the configuration for which a patent is sought is specified in the appended claims, but even if the configuration is not currently specified in the claims, it is disclosed in the present specification. I would like to mention that there is a possibility of claiming a patent for this configuration in the future.

12 Lower film 12a Storage recess 13 Film transfer device 14 Molding device 16 Upper film 17 Sealing device 31 Lower box 32 Upper box 35 Seal box 37 Recess 39 Guide groove 41 Heating plate 50 First unsealed part 51 Second unsealed part 55 Guide rail

Claims (4)

A molding device that molds multiple storage recesses for the lower film that is intermittently transported with both edges gripped by the claw members.
A means for coating the upper film with respect to the lower film, which is arranged on the downstream side of the molding apparatus and has the object to be packaged inserted in the storage recess.
A sealing device that seals a predetermined portion of the upper film and the lower film and seals the storage recess.
A deep-drawing packaging machine provided with a cutter means for cutting a predetermined portion of the upper film and the lower film to produce an individual package having the sealed storage recess.
The sealing device includes a lower box and an upper box that are arranged to face each other with the lower film and the upper film sandwiched between them.
The lower box has a seal box having a plurality of recesses formed in the lower film into which the plurality of storage recesses are inserted.
The upper box has a plurality of heating plates housed in recesses provided on the lower surface side of the base member, and the heating plates have a rectangular shape so as to contact and heat different film portions of the upper film. And
The lower film and the upper film are heated and pressed by sandwiching the contact portion between the lower film and the upper film around the outer periphery of the storage recess between the heating plate and the upper surface of the seal box to heat and pressurize the lower film and the upper film. Make sure to heat seal
A predetermined space is provided between the adjacent heating plates, and the predetermined space is aligned with the film portions of the lower film and the upper film between the adjacent storage recesses, and the film rigidity is not lowered. Configured to form a seal site,
The plurality of heating plates are arranged in the front-rear direction along the film transport direction.
The unsealed portion is formed in a direction orthogonal to the film transport direction.
The cutter means includes a horizontal cutter device that cuts in a direction orthogonal to the transport direction and a vertical cutter device that cuts in a direction parallel to the transport direction, and the predetermined portion is provided so that the unsealed portion is removed. A deep-drawing packaging machine characterized by being configured to cut parts. The plurality of heating plates are arranged on the left and right orthogonal to the film transport direction.
The deep-drawing packaging machine according to claim 1, wherein the unsealed portion is formed in a direction along the film transport direction. A guide rail for supporting the lower film is arranged below the formed region of the unsealed portion.
The deep-drawing packaging machine according to claim 2, wherein the upper surface of the seal box is provided with a guide groove into which the guide rail enters. The deep-drawing packaging machine according to any one of claims 1 to 3, wherein a guide rail for supporting the center of the lower film is provided on at least one of the upstream side and the downstream side of the sealing device.

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