JP2016216083A - Packaging machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable taking out of a package which stores an object to be packaged in a compressed state by press means regardless of the dimensional shape of the object to be packaged.CONSTITUTION: A packaging machine comprises: a press device 16 for compressing an object 4 to be packaged which is sandwiched between an upper film 10 and a lower film 11; a seal device for bonding edge parts of both films; and a package conveyance device 40 for conveying a package 38, in which the object to be packaged is sandwiched in a compressed state between the upper and lower films with the bonded edge parts, from the press device. The package conveyance device includes: a second clamp device 35 for holding the films; a second clamp movement device 39 for moving the second clamp device; and a conveying passage of the package drawn by the second clamp device. The second clamp movement device has a function of moving the second clamp device forward and backward and can move the second clamp device to the inside of the press device.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a packaging machine. More specifically, the present invention relates to a pressing device that compresses a sheet-shaped packaged object sandwiched between films from above and below, and a package (packaged object + film) compressed by the pressing apparatus. ) In relation to a packaging machine having a function of carrying it out of the press device.

  For example, for the purpose of saving energy as various heat insulation / heating / cooling devices such as freezers, household refrigerators, heat insulation machines, commercial showcases, and heat insulation materials used in cold cars and cold storage warehouses. Therefore, vacuum heat insulating materials with high heat insulating performance are being adopted. As disclosed in Patent Document 1 and the like, this vacuum heat insulating material is composed of a package in which various heat insulating materials having low thermal conductivity called cores / core materials are wrapped and sealed with a packaging film. When sealing, the inside is depressurized to a vacuum state. Moreover, the core material in the package is in a compressed state.

  In order to manufacture the package that constitutes the vacuum heat insulating material, for example, a bag core that is compressed by hand is packed into a bag body that is open on one side, and then the internal air is exhausted from one side that is open This is done by sealing and sealing one side. The core material may be a molded body that has been solidified in a compressed state before being stored in the bag body, or after being stored in the bag body, the core material will be in a compressed state due to internal evacuation and degassing. There are also.

JP 2005-207556 A Japanese Patent Laid-Open No. 7-40912

  In the above-described manual bagging operation, the number of manufactured items per unit time cannot be increased too much. Therefore, instead of manually bagging as such, it is conceivable to use a packaging machine disclosed in, for example, Patent Document 2 as a base and automatically wrap a product in a compressed state with a packaging film.

  That is, when packaging automatically using a packaging machine, the packaging film is set in a packaging machine with a roll of roll-shaped film wound on the packaging machine, and continuously fed from the original roll to the packaging machine body. To do. On the other hand, the core material used as a product is conveyed with a predetermined pitch by a product conveyance supply device, and is sequentially supplied to the packaging machine body. And a packaging machine main body surrounds a core material with a strip | belt-shaped film, and manufactures a package body by a sealing process, a cut process, etc. FIG.

  For example, a packaging machine that supplies a compressed article in a packaging film and seals and cuts a predetermined position of the packaging film that stores the article to manufacture a packaging body improves the number of production compared to the one manufactured manually. Can be made. However, for example, it may be any material as long as it has a relatively low elasticity such as a sponge and can be compressed even with a relatively small force and can maintain its compression state. For example, it has a high elasticity and a large elastic restoring force. In such a case, the article cannot be packaged in a greatly compressed state, and the final package may be too tall and cannot be thinned.

  In order to solve such a problem, for example, a product sandwiched between films from above and below is supplied to a press device, the product is compressed together with the film from above and below by the press device, and the side edges of the film are sealed in the compressed state. It is conceivable to use such a system. And if the structure which concerns is taken, it is necessary to carry out the package manufactured by compressing efficiently from a press apparatus.

  In order to solve the above-described problems, the packaging machine of the present invention includes (1) a press unit that compresses a packaged object sandwiched between films from above and below, and a sealing unit that bonds the edges of the upper and lower films. A package body unloading means for unloading the package body sandwiched in a compressed state with the upper and lower films to which the edges are bonded, from the press means, and the package body unloading means, A gripping means for gripping the film, a moving means for moving the gripping means, and a transport path for the packaging body pulled out by the gripping means, wherein the moving means has a function of moving the gripping means forward and backward. It was comprised so that it could move to the inside of the press means.

  The gripping means corresponds to the second clamping device 35 in the embodiment. The forward / backward movement is a movement in the direction along the conveying direction of the package, and corresponds to a movement approaching or moving away from the pressing means. There are various modes such as sandwiching an object to be packaged between different films, or sandwiching an object to be packaged by folding a single film.

  For example, when the whole package is compressed, the package is present inside the pressing means. Moreover, the dimension shape of the said to-be-packaged goods is various, and there exist a big thing and a small thing. And, for example, when the pressing means is adapted to the packaged object having a plurality of dimensions and shapes, in the case of a packaged object having a small dimension and shape, the peripheral edge of the film that wraps it is also present inside the pressing means. There is. In the present invention, since the gripping means can be moved to the inside of the pressing means by the moving means, the gripping means can be moved to the vicinity of the film located inside the pressing means regardless of the dimensional shape of the product. Therefore, when pulling out the package from the pressing means, for example, the gripping means enters the inside of the pressing means and moves closer to the gripped portion of the film. Next, the gripping means grips the film. On the other hand, the press means releases the compression on the product at an appropriate timing. By releasing the compression, the package can be detached from the press device, and the gripping means moves backward in a direction away from the press means while holding the film. Thereby, a package is guide | induced on a conveyance path and is carried out from a press means.

  (2) At least a part of the moving means is configured to be able to enter a lower space of the press lower plate of the press means, and a link member that links the moving means and the gripping means is provided on the press lower plate. It is preferable to make it movable along a groove penetrating vertically. In this way, in the press means, the moving means for entering the gripping means is arranged in the lower space of the lower press lower plate in the space between the press plates arranged above and below to compress the package in contact with the film. For example, the gripping means can be smoothly entered even in a narrow space between the upper and lower press plates during the compression process. “Enterable” means that the vehicle may always enter, or the tip position of the moving means may be moved, and may be in the state of entering and not entering.

  (3) The moving means may have a function of moving the gripping means up and down, and may be configured to be able to move forward in the lower space of the conveyance path toward the pressing means. According to the present invention, since the gripping means is moved up and down and can move in the lower space of the transport path, the gripping means can be moved even if the package transported from the press means exists on the transport path. Can be moved to the pressing means side, so that the packaging body can be efficiently carried out from the pressing means, and the number of packaging processing per unit time can be increased.

  That is, since the gripping means moves up and down, for example, when pulling out the package from the press means, the gripping means is positioned at a predetermined position above and moved toward the press means or enters the inside of the press means, Move closer to the part to be grasped. Next, the gripping means grips the film. On the other hand, the press means releases the compression on the product at an appropriate timing. By releasing the compression, the package can be detached from the press device, and the gripping means located at the upper predetermined position moves away from the press means while gripping the film. Thereby, a package is guide | induced on a conveyance path and is carried out from a press means.

  When the gripping means has carried the package to an appropriate position, the gripping of the film by the gripping means is released. Next, the moving means moves the gripping means downward and positions it below the conveyance path. The moving means moves the gripping means toward the pressing means. The moving means raises the gripping means at an appropriate position and prepares for the next package to be carried out. Since the movement toward the press means is performed using the space below the conveyance path, the movement can be performed even when the package is present on the conveyance path. Therefore, since the gripping means can be moved to the pressing means side before the packaging body on the conveyance path is carried out to the downstream side, the number of processes per unit time can be increased and high-speed processing becomes possible. In particular, when the packaged item has a long total length, for example, a core material constituting a vacuum heat insulating material, it takes time to save the packaged item from the conveyance path, but it is necessary to wait for the time for such saving. This is preferable. That is, the vacuum heat insulating material is mounted on, for example, a refrigerator or other home appliances for the purpose of cold insulation / cooling, but the size and shape of a single vacuum heat insulating material increases with the recent increase in the size of home appliances. Moreover, the vacuum heat insulating material etc. which are applied to a building etc. need a bigger dimension shape thing. Therefore, it is sufficient that the above effect appears more remarkably.

  Also, for example, if the package is a vacuum heat insulating material, it is a thin sheet. Therefore, if the gripping means grips the film part located on the front side of the package and moves it so as to pull it forward, it can be smoothly carried out. It is preferable because it is possible.

  (4) The moving means may include a roller conveyor capable of supporting the gripping means and means for raising and lowering the roller conveyor. The gripping means may move on the roller conveyor so that it can move toward and away from the press means while maintaining a stable posture with the gripping means positioned at a predetermined position, for example. . Moreover, the up-and-down movement is also performed stably.

  (5) The moving means includes a driving belt disposed along the conveying direction of the package and driving means for rotating the driving belt forward and backward, and the gripping means is linked to the driving belt. The forward / backward movement may be performed following the forward / reverse rotational movement of the drive belt. In this way, the gripping means can be easily moved forward and backward, and the movement range of the gripping means can be easily adjusted and controlled. For example, vacuum heat insulating materials are mounted on, for example, refrigerators and other household electrical appliances for the purpose of cold insulation and cooling, etc. There are many variations. In the present invention, since the movement range of the gripping means can be easily adjusted, for example, it is possible to deal with different objects to be packaged such as front and rear lengths, which is preferable.

  (6) The upstream end position of the drive belt may be adjusted in the front-rear direction. In this case, the stop position on the upstream side of the gripping means can be adjusted without changing the control of the drive motor, for example, and therefore, adjustment according to the dimensional shape of the package may be easily performed.

(7) The gripping means includes a pair of clamp claws that opens and closes, and the pair of clamp claws performs the opening and closing by rotating forward and backward at least about the rotation axis provided on the base end side of the upper clamp claws, The ends of the pair of clamp claws in the open state are positioned on opposite sides of the rotation shaft, and the height of the pair of clamp claws in the open state is the pair of clamp claws in the closed state. It is better to be equal to or lower than the height of. In this way, for example, in a state where the article to be packaged and the package are thin and pressed by the pressing means, even when the space between the upper pressing member and the side pressing member is narrow, it is in a closed state. If the space into which the gripping means can enter is secured, it is possible to enter in an open state. Therefore, it is sufficient that the film can be gripped by performing the closing operation immediately when the gripping means approaches the package body in the open state.
(8) The opening and closing may be performed by cylinder driving. In this case, the clamp claw can be closed smoothly and quickly with a simple configuration.

  According to the present invention, since the gripping means can move forward into the press means, the gripping means can be positioned at the gripped portion of the film located inside the press means regardless of the size and shape of the package. It is possible to take out the package that wraps the compressed article to be packaged existing inside the press means.

It is a front view which shows suitable one Embodiment of the packaging machine which concerns on this invention. (A) is the side view, (b) is a front view which shows the sealing device which abbreviate | omitted description in FIG. It is a figure explaining an effect | action. It is a figure explaining an effect | action. (A) is an enlarged side view which shows the state of FIG.3 (b), (b) is a figure which shows the state which pinched | interposed the package material 4 with the upper film 10 and the lower film 11. FIG. (A) is an enlarged side view which shows the state of Fig.4 (a), (b) is a front view which shows the sealing device which abbreviate | omitted description in Fig.4 (a). (A) is an enlarged plan view which shows the state of Fig.4 (a), (b) is a figure which shows the state of the to-be packaged object and film after a side seal. (A) is an enlarged plan view which shows the state of FIG.4 (b), (b) is a perspective view which shows the package body manufactured. It is a front view which shows the package body carrying-out apparatus used for this embodiment. It is a top view which shows the package body carrying-out apparatus used for this embodiment. (A) is a side view which mainly shows a carrying-out conveyor apparatus of a package body carrying-out apparatus, (b) is the partially expanded side view. It is a front view which shows a part of 2nd clamp apparatus 35 and the 2nd clamp moving apparatus 39. FIG. FIG. It is the side view. It is a front view which shows the 2nd clamp apparatus. FIG. 13 is an arrow view and an arrow cross-sectional view at appropriate positions in FIG. 12. FIG. 10 is an enlarged sectional view taken along line FF in FIG. 9. FIG. 10 is an enlarged sectional view taken along line GG in FIG. 9. FIG. 10 is an enlarged sectional view taken along line HH in FIG. 9.

  Hereinafter, a first embodiment of the present invention will be described in detail with reference to the drawings. It should be noted that the present invention is not construed as being limited thereto, and various changes, modifications, and improvements can be made based on the knowledge of those skilled in the art without departing from the scope of the present invention.

  The figure shows a preferred embodiment of the packaging machine according to the present invention. As shown in FIG. 1 and the like, a packaging machine 1 according to this embodiment includes a packaging machine main body 2, a film supply device 3 that is disposed on the upstream side of the packaging machine main body 2, and supplies a packaging film to the packaging machine main body 2. A packaged article supply device 5 that is arranged on the upstream side of the packaging machine body 2 and supplies the packaged article 4 to the packaging machine body 2 is provided.

  The package 4 has elasticity, and is a core material that constitutes a vacuum heat insulating material in the present embodiment. Although the package 4 is described as having a flat rectangular shape, the present invention is not limited to this. Further, for example, when the article 4 is sandwiched and compressed from above and below, the article 4 is elastically deformed and crushed to reduce its thickness.

  The upper film 10 and the lower film 11 are used as the packaging film for storing the package 4 used in the present embodiment. The film supply device 3 supplies the upper film 10 and the lower film 11 to the packaged object 4 so as to be sandwiched from above and below. Specifically, although not shown, the film supply device 3 holds the original rolls rotatably at predetermined positions above and below the package supply device 5, respectively. The film supply device 3 includes a plurality of rollers 12 that regulate the film conveyance path, and is continuously drawn from the upper film 10 that is continuously drawn from the upper original roll and the lower original roll. The lower films 11 are respectively passed over the rollers 12, and the leading ends of the lower films 11 are guided near the downstream end of the package supply device 5. The ends of the upper film 10 and the lower film 11 are sealed and joined. This seal is a top seal portion formed in the top seal process performed in manufacturing the previous package.

  Thereby, the upper film 10 and the lower film 11 are arrange | positioned so that a conveyance path | route may be interrupted | blocked ahead of the to-be-packaged object carried out from the to-be-packaged article supply apparatus 5. FIG. Therefore, when the package 4 is carried out from the package supply device 5, the front end surface of the package 4 comes into contact with the upper film 10 and the lower film 11. And if the to-be-packaged object 4 moves further forward, the upper film 10 and the lower film 11 will be urged | biased by the to-be-packaged object 4, and will be withdraw | derived by the advancing direction front. Further, although not shown in the drawing, the film supply device 3 prevents the upper film 10 and the lower film 11 to be drawn from being urged so that a certain tension is applied, and prevents the film from being loosened by being drawn more than necessary. Equipped with a dancer roller and brake mechanism.

  The package supply device 5 includes a lower transport conveyor 7 and an upper transport conveyor 8. The lower conveyance conveyor 7 has a conveyance surface set in a horizontal plane, and conveys the article 4 to be packaged placed on the conveyance surface toward the front. The upper conveyor 8 has a belt surface that can rotate forward and backward around the front side in the traveling direction. Specifically, as shown in FIG. 1 and the like, the upstream side is lifted up, and the belt surface is placed in a horizontal state as shown in FIG. Transition between the operation positions to be arranged. When the upper transport conveyor 8 is in the standby position, the separation distance between the upper transport conveyor 8 and the lower transport conveyor 7 at the upstream end on the carry-in side is set to be longer than the height of the article 4 to be packaged. . Thereby, when the upper conveyance conveyor 8 is set at the standby position, the carry-in entrance is greatly opened, and the article 4 to be packaged can be smoothly set on the lower conveyance conveyor 7. When the upper conveyor 8 is moved to the operating position with the article 4 to be placed on the lower conveyor 7, the article 4 is sandwiched between the lower conveyor 7 and the upper conveyor 8. In this state, when the lower transport conveyor 7 and the upper transport conveyor 8 are rotationally driven, the sandwiched article 4 receives a forward transport force.

  At this time, the article to be packaged 4 may be compressed by the upper conveyor 8 and the lower conveyor 7. For example, the separation distance between the upper conveyor 8 and the lower conveyor 7 may be 1/10 to 1/2 of the height of the package 4. Moreover, the 1st clamp 15 is located in the vicinity of the seal | sticker site | part 36 which joined the upper film 10 and the lower film 11 at the appropriate timing. Further, the press upper plate 18 of the press device 16 is located at the ascending position and is located above the upper surface of the article 4 to be packaged. And the upper conveyance conveyor 8 and the lower conveyance conveyor 7 which rotationally drive in the state which pinched | interposed the to-be-packaged object 4 as mentioned above move the to-be-packaged object 4 forward, and the front-end surface is set to the upper film 10 and the lower film 11 The packaged article 4 is carried out and supplied toward the packaging machine main body 2 side together with both the films.

  Furthermore, when the front end of the package 4 reaches the front end of the lower transport conveyor 7 and the upper transport conveyor 8 and further transport proceeds, the transport force from the lower transport conveyor 7 and the upper transport conveyor 8 gradually weakens. , Smooth conveyance will not be possible. Therefore, in the present embodiment, as shown in FIG. 3B, a first clamp 15 that can grip the sealing portion 36 of the upper film 10 and the lower film 11 is provided. The first clamp 15 is biased so that the upper film 10 and the lower film 11 are pulled forward in the traveling direction by the first clamp 15. Therefore, the article 4 to be packaged moves forward together with the upper film 10 and the lower film 11 and moves to the compression / seal work location of the packaging machine body 2 (see FIGS. 3B and 3C). The first clamp 15 can be adjusted in the vertical direction according to the height of the object to be packaged.

  The packaging machine main body 2 includes a press device 16 at a compression / sealing work location. The press device 16 includes a press lower plate 17, a press upper plate 18, a cylinder 19 and the like. The press lower plate 17 is fixedly installed at a predetermined height. The predetermined height is, for example, substantially matched with the transport surface of the lower transport conveyor 7. By doing in this way, the to-be-packaged goods 4 carried out from the to-be-packaged article supply apparatus 5 are smoothly put into a fixed position on the press lower plate 17 with the upper and lower sides being sandwiched between the upper film 10 and the lower film 11. Located (see FIG. 3C, etc.).

  On the other hand, the upper end of the press plate 18 is connected to the top end of the cylinder rod of the cylinder 19 on its upper surface, and moves up and down following the reciprocation of the cylinder 19. When the press upper plate 18 is in the raised position, the separation distance between the press upper plate 18 and the press lower plate 17 becomes longer than the height of the article 4 to be packaged, and when the press upper plate 18 moves downward, the press lower plate 17. The article 4 to be packaged is compressed between the press and the upper plate 18 (see FIG. 4A).

  As shown in FIG. 2A and the like, a lower film holding portion 20 that stands upward is provided on both side edges of the upper surface of the press lower plate 17 in the traveling direction. Further, upper side film holding portions 21 that hang downward are provided on both side edges of the lower surface of the press upper plate 18 in the traveling direction. The lower film holding portion 20 and the upper film holding portion 21 are arranged at positions facing each other in the vertical direction, and when the press upper plate 18 moves downward, the upper film holding portion 21 also moves downward together with the press upper plate 18, When the plate 18 reaches the lowered position, the upper film holding portion 21 and the lower film holding portion 20 come into contact with each other.

  The lateral widths of the upper press plate 18 and the lower press plate 17 are set to be shorter than the lateral widths of the upper film 10 and the lower film 11. Thereby, as shown in FIG. 5, FIG. 6, etc., the both-sides edge of the upper film 10 and the lower film 11 protrudes outside in the state which is compressing the to-be-packaged object 4 with the press apparatus 16, for example. And the predetermined area | region of the protruded film site | part is pinched | interposed and hold | maintained between the upper film suppression part 21 and the lower film suppression part 20. FIG. In the held state, both side edges of the upper film 10 and the lower film 11 protrude further outward from the upper film holding portion 21 and the lower film holding portion 20. Since the upper film 10 and the lower film 11 are sandwiched and held in the vicinity of both side edges by the upper film holding part 21 and the lower film holding part 20, the side edges of the upper film 10 and the lower film 11 are close to each other and in contact with each other. And even if it is a case where the thickness of the to-be-packaged object in the state compressed by the press means is thick, it can seal reliably.

  Moreover, in this embodiment, the upper film holding | suppressing part 21 is connected with the press upper board 18, and raises / lowers integrally. Therefore, the drive source for raising and lowering the upper film holding portion 21 is also used by the cylinder 19 of the press device 16.

  As shown in FIG. 2A and the like, side seal devices 25 are respectively arranged on the outer sides of both sides of the press device 16. As shown in FIG. 2B and the like, the side seal device 25 is for heat-sealing both side edges of the upper film 10 and the lower film 11. The side seal device 25 includes a pair of bar sealers 26 that sandwich the films from above and below, a pair of upper and lower nip rollers 28 disposed on both front and rear sides of the bar sealer 26, and a pair of upper and lower press rollers 29. The nip roller 28 is disposed in front of the film in the traveling direction (in other words, in the forward direction of the side seal device 25), and the press roller 29 is disposed in the rear of the film in the traveling direction (in other words, behind the side seal device 25 in the traveling direction). Deploy. In addition, you may arrange | position the press roller 29 ahead of the advancing direction of a film. In this way, the side seal device 25 can press and bond the upper and lower films 10 and 11 even when backing, and is unadhered by the bar sealer 26 at the end stop position of the side seal device 25. It is possible to add a function capable of bonding the film parts.

  The nip roller 28 is made of rubber and sandwiches both side edges of the upper film 10 and the lower film 11 with a predetermined pressure. The bar sealer 26 is adjacent to both side edges of the upper film 10 and the lower film 11 and heats the film portion. The press roller 29 pressurizes both side edges of the upper film 10 and the lower film 11 heated by the bar sealer 26 with a predetermined pressure, and heat-seals the film portion.

  The pair of upper and lower bar sealers 26, the nip roller 28, and the press roller 29 are configured to be openable and closable, and transition between a standby position separated from each other and an operating position where the upper film 10 and the lower film 11 can be sandwiched by approaching each other. . Specifically, the pair of upper and lower bar sealers 26 move up and down to approach and move away from each other, and the upper film 10 and the lower film 11 passing between the standby positions where the opposing seal surfaces are separated and the seal surfaces are close to each other. Transition between operating positions to heat. In the pair of upper and lower nip rollers 28, the support plate 28a to which the upper nip roller 28 is attached rotates in the forward and reverse directions with the lower end edge as the rotation center, and in the standby position, as shown in FIGS. 2 (a), 5 (a), etc. It inclines so that the upper side of 28a may open outside. As a result, the rotating shaft of the upper nip roller 28 is tilted upward integrally with the support plate 28a, and the upper nip roller 28 and the lower rotating shaft are separated from the horizontal nip roller 28 (FIGS. 2 and 5). Etc.). In the operating position, as shown in FIG. 6 (a) and the like, the support plate 28a stands up, and the rotation axis of the upper nip roller 28 becomes horizontal with the support plate 28a, so that the upper and lower nip rollers 28 are Contact (see FIG. 6 etc.). The same applies to the press roller 29, and a standby position and an operating position are taken by rotatably arranging a support plate 29a to which the upper press roller 29 is attached.

  Further, a pair of upper and lower bar sealers 26, a nip roller 28, and a press roller 29 are installed on a moving table 30. The moving table 30 is linked to guide rails 31 arranged on the left and right sides of the pressing device 16 along the film conveyance direction.

  When the film drawn out by the first clamp 15 and the article to be packaged 4 move in the press device 16, the side seal device 25 is located at a sealing work position facing the press device 16. The bar sealer 26, the nip roller 28, and the press roller 29 of the side seal device 25 located at this sealing work position are located at the standby position. Therefore, as shown in FIG. 5A, both side edges 10a and 11a of the upper film 10 and the lower film 11 are not in contact with the nip roller 28 and the like. Further, as described above, since the press upper plate 18 is also located at the raised position, the article 4 to be packaged smoothly moves forward on the press lower plate 17, and at that time, the upper film 10 and the lower film 11 Both side edges 10a and 11a travel in a space between a pair of upper and lower bar sealers 26, a nip roller 28, and a press roller 29.

  Further, as shown in FIG. 5 (b), the packaged object 4, the upper film 10 and the lower film 11 moving in the press device 16 are wrapped with the upper film 10 and the lower film 11 on the upper and lower sides of the packaged object 4. In the folded state, both side edges 10a and 11a are not sealed and overlapped, resulting in a sealed portion 36 where the front edge is joined. Further, as described above, predetermined positions of the seal portion 36 (in the present embodiment, two locations in the vicinity of both side edges (see FIG. 7)) are gripped by the first clamp 15.

  When the article 4 is pulled out to the fixed position on the press lower plate 17 by the first clamp 15, the forward movement of the first clamp 15 stops and the article 4 reaches the fixed position (FIG. 3 (c)). )reference). Further, when the article to be packaged 4 reaches a fixed position, the whole article to be packaged 4 is on the press lower plate 17, and the article to be packaged 4 is positioned between the top sealers 34 of the top seal device 33. The upper film 10 and the lower film 11 exist.

  In this way, with the article 4 to be packaged sandwiched between the upper film 10 and the lower film 11 from above and below being placed at a fixed position, the press device 16 is driven to compress the article 4 to be packaged. That is, as shown in FIG. 4A, FIG. 6A, and the like, the press upper plate 18 is moved downward to compress the package 4 together with the upper film 10 and the lower film 11. Moreover, as shown to Fig.6 (a), while the side edge 10a of the upper film 10 and the side edge 11a of the lower film 11 are hold | maintained by the upper film restraining part 21 and the lower film restraining part 20, it is the side further The edge tip protrudes outward.

  Next, a pair of upper and lower bar sealers 26 of the side seal device 25 are brought close to the side edges 10a and 11a of the film, and are projected to the outside of the upper film holding portion 21 and the lower film holding portion 20 by the nip roller 28 and the press roller 29. The side edges 10a and 11a of the film are sandwiched (see FIG. 6 and the like). In this state, the movable table 30 moves forward in the film traveling direction (see FIG. 7A and the like). Then, the pair of upper and lower bar sealers 26, the nip roller 28, and the press roller 29 are sealed while moving along the side edges 10a and 11a while sandwiching the side edges 10a and 11a. Thereby, as shown in FIG.7 (b), the side edge 10a of the upper film 10 and the side edge 11a of the lower film 11 are heat-sealed, and the side seal part 37 is formed. Even when the side sealing is performed, since the press upper plate 18 is in the lowered position, the package 4 is subjected to the sealing process while being compressed.

  Further, a top seal device 33 is disposed on the upstream side of the press device 16. The top seal device 33 includes a pair of upper and lower top sealers 34. The top sealer 34 moves up and down, and the seal surfaces of the top sealer 34 approach and separate from each other. Further, a cutter is built in the top sealer 34 to cut the seal portion.

  That is, as described above, after the top seal device 33 that has completed the side seal process is driven, the pair of top sealers 34 move closer to each other to sandwich the upper film 10 and the lower film 11, thereby forming the seal portion 36. The sealing part 36 is cut in half (see FIG. 4B, etc.). Even when this top sealing process is performed, the press upper plate 18 is positioned at the lowered position, and the article 4 to be packaged remains in a compressed state. As described above, since the package 4 is compressed between the press upper plate 18 and the press lower plate 17 during the sealing process, even if the package 4 is made of a highly elastic material, it is sealed. The compressed state is maintained, and the packaging body 38 in the compressed state can be manufactured (see FIG. 8B and the like).

  On the downstream side of the press device 16, a package unloading device 40 is arranged. The package carrying-out device 40 discharges the package 38 formed by being compressed by the press device 16 and side-sealed by the side seal device 25 from the press device 16. As shown in FIG. 4B and the like, the packaging body carrying-out device 40 moves the second clamping device 35 and the second clamping device 35 in a predetermined locus by grasping the packaging body 38 and pulling it out from the press device 16. A second clamp moving device 39 and a carry-out conveyor device 32 that receives and conveys the package 38 drawn by the second clamp device 35 are provided. As will be described later, the second clamp moving device 39 has a function of moving the second clamp device 35 forward and backward and moving up and down. The second clamp moving device 39 allows the second clamp device 35 to enter the inside of the press device 16. Furthermore, in this embodiment, the distance to enter becomes variable and can be adjusted.

  In order to compress the entire packaged object 4, the outer periphery of the plane of the press lower plate 17 and the press upper plate 18 needs to be located outside the outer periphery of the plane of the packaged object 4. And if it is made to respond | correspond to the to-be-packaged object 4 of a different dimension shape, the press lower board 17 and the press upper board 18 will be set to a large thing according to the maximum dimension of a process target. As a result, for example, the package 38 of the package 4 having a small size and shape has a seal portion 36 located in the press device 16.

  Therefore, in the present embodiment, the second clamping device 35 enters the inside of the pressing device 16 and moves to a position where the sealing portion 36 on the front side in the traveling direction of the package 38 pressed by the pressing device 16 can be sandwiched. To do. At this time, in a state where the seal portion 36 is located in the press device 16, the second clamp device 35 enters the space between the press lower plate 17 and the press upper plate 18 of the press device 16 and reaches the position. In this state, the press upper plate 18 moves upward, and the second clamp device 35 grips the seal portion 36. In the present embodiment, as shown in FIG. 8A, the second clamp device 35 grips one location near the center in the width direction of the seal portion 36.

  Next, the second clamp device 35 moves along the carrying direction of the carry-out conveyor device 32. Thereby, the packaging body 38 is pulled out from the press apparatus 16, and transfers to the carry-out conveyor apparatus 32 side (refer FIG.4 (c) etc.). The carry-out conveyor device 32 is rotationally driven, for example, along with the movement of the second clamp device 35, and assists withdrawing the package 38 by the second clamp device 35. When the second clamp device 35 is opened and the gripping of the seal portion 36 is released, the pulled-out package 38 is further moved forward in response to the transport force from the carry-out conveyor device 32.

  On the other hand, the second clamp device 35 that has released the grip of the drawn package 38 is moved downward to reach a position where it does not interfere with the package 38 on the carry-out conveyor device 32, and passes under the package 38 in that state. It moves toward the press device 16. Then, the second clamp device 35 rises at an appropriate position, enters the press device 16, and prepares for the next package 38 to be carried out.

  Thereafter, the manufactured package 38 can be sequentially pulled out from the press device 16 by repeating the above process. And in this embodiment, since the 2nd clamp apparatus 35 can be moved up and down and can move below the conveyance surface of the carry-out conveyor apparatus 32, the package 38 pulled out on the carry-out conveyor apparatus 32 exists. However, since it can move toward the press device 16, it can cope with high-speed processing. A specific configuration for performing the function is as follows.

  As shown in FIG. 10 and the like, the carry-out conveyor device 32 includes a pair of roller conveyors 41 arranged in the center in the width direction along the conveyance direction, and a pair of product belt conveyors 42 arranged outside the pair of roller conveyors 41. Is provided. The roller conveyor 41 includes a large number of rollers having rotating shafts arranged in a direction orthogonal to the transport direction. Each roller is in a free state independently of each other and rotates around the rotation axis. Each roller constitutes a conveyance path that receives the lower surface of the package 38. The pair of roller conveyors 41 are arranged on the left and right sides at a predetermined distance, and are fixed and supported on the support poles 44 via the L-shaped plate 43. A predetermined space is formed between the pair of roller conveyors 41. A cover 45 is arranged in a predetermined area on the carry-out side of the space.

  On the other hand, the product belt conveyor 42 includes an endless belt 42b stretched over a pulley 42a disposed at a predetermined position, and is movable in a lateral direction perpendicular to the conveying direction. That is, the slider 47 is movably attached to the guide rail 46 arranged so as to extend in the lateral direction. A product belt conveyor 42 is supported on the slider 47 via a support mechanism 48. Further, the pair of product belt conveyors 42 rotates / stops in synchronization with the output of the drive motor 49.

  Thereby, as shown by a two-dot chain line in FIG. 11, when the pair of product belt conveyors 42 is arranged close to the center side, the distance between the pair of product belt conveyors 42 is shortened. Therefore, even if it is the package 38 which accommodated the to-be-packaged object 4 with narrow width, the both sides edge side is firmly supported by one product belt conveyor 42, and conveyance force is given, Furthermore, the center part of the package 38 is also a roller conveyor. Since it supports by 41, the carrying-out conveyor apparatus 32 conveys the package 38 in the stable attitude | position.

  In addition, when the pair of product belt conveyors 42 is disposed on both the left and right outer sides as indicated by a two-dot solid line in FIG. 11, the distance between the pair of product belt conveyors 42 is increased. Therefore, even if it is the package 38 which accommodated the wide to-be-packaged goods 4, the both sides edge side is firmly supported by the one product belt conveyor 42, and conveyance force is given, and also the center part of the package 38 is also the roller conveyor 41. Therefore, the carry-out conveyor device 32 conveys the package 38 in a stable posture. In this way, the articles to be packaged 4 and thus the package 38 can be appropriately supported in any size corresponding to the width of the package 38 and can be supplied with a conveying force.

  On the other hand, the second clamp device 35 is configured by attaching each member to an appropriate position on the base plate 50 as shown in FIGS. In the base plate 50, the transport direction of the package 38 is the longitudinal direction. Note that FIG. 12 and the like show a state in which the second clamp device 35 has entered the press device 16.

  As shown in the drawing, the lower clamp claw member 51 and the upper clamp claw member 52 that sandwich the package 38 are attached to one end side in the longitudinal direction of the base plate 50 so as to be freely opened and closed. The lower clamp claw member 51 is composed of a single wide member, and the upper clamp claw member 52 is composed of two narrow members, which are arranged on the left and right sides of the lower clamp claw member 51, respectively. A recess 51a is provided on the upper surface of the lower clamp claw member 51, and the elastic member 54 is disposed in the recess 51a. The upper surface of the elastic member 54 protrudes upward from the upper surface of the lower clamp claw member 51. Similarly, a recess 52a is provided on the lower surface of the upper clamp claw member 52, and an elastic member 55 is provided in the recess 52a. The lower surface of the elastic member 55 protrudes downward from the lower surface of the lower clamp claw member 51. These elastic members 54 and 55 have moderate elasticity and elastic restoring force, and use rubber, for example. When the lower clamp claw member 51 and the upper clamp claw member 52 are closed, the elastic members 54 and 55 arranged on each contact with each other with a predetermined pressure. Therefore, the sealing part 36 of the package 38 is gripped more reliably using such contact pressure.

  The base end side of the lower clamp claw member 51 is fixed to the base plate 50 and maintains a horizontal state. A rotating shaft 53 is attached to the base plate 50 via a bearing portion 59 on the base end side of the lower clamp claw member 51. The axis of rotation 53 is arranged in parallel with the short direction of the base plate 50. The bearing part 59 supports the axial center part of the rotating shaft 53 rotatably. Two upper clamp claw members 52 are connected to both sides of the rotating shaft 53 via an annular connecting member 65 provided on the base end side. The two upper clamp claw members 52 are integrated with the rotation shaft 53 and rotate forward and backward with the rotation shaft 53 as a rotation center. The rotation angle range was about 180 degrees. That is, for example, as indicated by a solid line in FIG. 12, the clamping posture in which the upper clamp claw member 52 overlaps and contacts the lower clamp claw member 51 and can hold the package 38, and the two-dot chain line in FIG. As shown by, a transition is made between the holding posture and a standby posture that is opened by rotating about 180 degrees clockwise. In this standby posture, the upper clamp claw member 52 is positioned on the opposite side in the conveying direction of the lower clamp claw member 51 and the packaging body 38, and takes an inclined posture that faces slightly upward. And the upper clamp nail | claw member 52 can hold down the height of the front-end | tip position low by opening large. In the illustrated example, the tip end position of the upper clamp claw member 52 is set to be substantially the same as or slightly higher than the upper end position of the connecting member 65 connected to the rotating shaft 53. Thereby, by positioning the upper clamp claw member 52 in the standby posture, the overall height of the second clamp device 35 can be kept low. For example, when the upper clamp claw member 52 enters the press device 16 in the standby posture. The upper press plate 18 is located at the lowered position, and the press upper plate 18 and the press lower plate 17 can enter even when the gap is narrow.

  On the other hand, a cylinder 57 is installed at an upper surface intermediate portion of the base plate 50. The cylinder rod 57a of the cylinder 57 is positioned on the upper clamp claw member 52 side. One end of a connection plate 58 is fixed to the connection block 64 attached to the tip of the cylinder rod 57a, and rack members 56 are attached to the left and right sides of the other end of the connection plate 58. The rack member 56 protrudes from the other end of the connection plate 58 to one end side of the base plate 50, and a tooth portion 56 a is formed on the lower surface of the rack member 56. On the other hand, tooth portions of the pinion 53a are formed on the outer peripheral surfaces of both ends of the rotating shaft 53, and these tooth portions mesh with each other. As a result, the rack member 56 moves back and forth due to the reciprocating motion of the cylinder rod 57a of the cylinder 57, and accordingly, the pinion 53a and thus the rotating shaft 53 rotate forward and backward, and the upper clamp claw member 52 opens and closes.

  Further, a guide plate 60 is provided at one end of the base plate 50 so as to extend forward. The guide plate 60 includes a flat main body 60a located in a horizontal plane, and a downward inclined surface portion 60b provided continuously at the tip of the main body 60a. For example, the inclined surface portion 60b can be easily formed by bending the end portion of the flat plate-like main body 60a. The inclined surface portion 60b has a tip at the lowest position. And the height position of the front-end | tip of the inclined surface part 60b is made into the position which is substantially equal to the base plate 50, or a little higher. Thereby, for example, when the second clamping device 35 enters and moves in the space between the press upper plate 18 and the press lower plate 17 at the lowered position, the tip of the inclined surface portion 60b of the guide plate 60 is moved to the press lower plate 17. Move to a position close to the top surface of. Therefore, for example, even when the seal portion 36 of the package 38 is hanging downward, the inclined surface portion 60b enters the lower side of the seal portion 36, lifts it, and smoothly and accurately on the lower clamp claw member 51. Can be located.

  Furthermore, the central part of the main body 60a is an opening 60c penetrating vertically. The lower clamp claw member 51 is positioned in the opening 60c. Then, the upper surface of the lower clamp claw member 51 and the main body 60a of the guide plate 60 are set at substantially the same height position, and the projecting piece 60d protruding from the inner peripheral edge of the main body 60a into the opening 60c is formed on the lower clamp claw member 51. It is brought into contact with the upper surface and fixed with a fixing member such as a screw. Thereby, the guide plate 60 is supported by the base plate 50 and the lower clamp claw member 51, and maintains a horizontal state.

  Further, side guide plates 61 are provided on the left and right sides of the guide plate 60. The side guide plate 61 is composed of a single trapezoidal band plate, and the band plate is arranged in a vertical plane. The upper end position of the side guide plate 61 is set to the same height as the upper surface of the guide plate 60 and the like. Further, the lower end position of the side guide plate 61 is positioned lower than the height position on the tip end side of the inclined surface portion 60 b of the guide plate 60 and the base plate 50. Furthermore, the tip side of the side guide plate 61 located on the side opposite to the base plate 50 is a downwardly inclined side 61a that becomes lower toward the tip. The inclined side 61 a is positioned further than the tip of the inclined surface portion 60 b of the guide plate 60.

  Since the lower end edge of the side guide plate 61 is located below the base plate 50 or the like, a space such as a groove portion 17 a or the like that allows the side guide plate 61 to move is provided in the press lower plate 17. In the present embodiment, when the second clamp device 35 moves toward the packaging body 38, the inclined side 61 a of the side guide plate 61 moves in advance of the inclined surface portion 60 b of the guide plate 60, and first the packaging body 38. The seal part 36 is contacted. Moreover, since the inclined side 61 a is located below the upper surface of the press lower plate 17 in the press device 16, for example, the seal portion 36 is in contact with the upper surface of the press lower plate 17. Also, the seal portion 36 can be raised and lifted up reliably. Further, even when the package 38 is long and the seal portion 36 is located outside the press device 16 and hangs downward, the inclined side 61a of the side guide plate 61 is provided with the seal portion 36. The seal portion 36 can be reliably lifted by entering the lower side and guided to the inclined surface portion 60 b and further to the upper surface of the lower clamp claw member 51.

  The carrying-out process from the press apparatus 16 of the package 38 using the second clamp apparatus 35 having the above-described configuration is as follows. If the upper clamp claw member 52 enters the press device 16 in the open standby position and approaches the article 4 to be packaged, and the seal portion 36 is positioned on the lower clamp claw member 51 and the elastic member 54, the second The movement of the clamping device 35 is stopped. Thereafter, the upper plate 18 of the press moves upward, and the cylinder 57 operates to rotate the upper clamp claw member 52 to shift to the clamping posture. The elastic member 54 of the lower clamp claw member 51 and the upper clamp claw member 52 Hold firmly with the elastic member 55. At this time, the upper clamp claw member 52 is rotated about 180 degrees from the standby posture at a stroke by the operation of the cylinder 57 to shift to the holding posture, and can quickly hold the seal portion 36.

  That is, for example, the thickness of the packaging body 38 is thin and the press upper plate 18 moves down to a lower position, and the space between the press upper plate 18 and the press lower plate 17 is narrow as shown in FIG. 35, when it can only enter the press device 16 in either the standby posture or the holding posture, if it enters in the holding posture temporarily, it stops once before the seal portion 36 and the press upper plate 18 rises. The upper clamp claw member 52 is opened by a predetermined distance, and then the second clamp device 35 is advanced again to position the lower clamp claw member 51 under the seal portion 36, and then the upper clamp claw member 52 is closed. In this embodiment, the lower clamp claw member 51 may be positioned immediately below the seal portion 36 at a stretch in the present embodiment.

  Furthermore, wheels 62 are attached to both side surfaces of the base plate 50 so as to be rotatable in the front-rear direction. The lower end position of the wheel 62 is located below the lower surface of the base plate 50. For example, when the second clamp device 35 enters the press device 16 and moves to the inside of the wheel 62, the wheel 62 advances while rolling on the upper surface of the press lower plate 17, so that the base plate 50 is moved to the press lower plate 17. It can move smoothly without contact. Furthermore, a cable bear (registered trademark) 66 is attached to the other end of the base plate 50.

  Next, a mechanism for raising and lowering the base plate 50 and thus the lower clamp claw member 51 and the upper clamp claw member 52 will be described. An elevating roller conveyor 70 is disposed between a pair of fixed roller conveyors 41. The elevating roller conveyor 70 includes a number of rollers having rotating shafts arranged in a direction orthogonal to the conveying direction. Each roller is in a free state independently of each other and rotates around the rotation axis. The elevating roller conveyor 70 is moved up and down by the cylinder 71 before and after that.

  The elevating roller conveyor 70 in the raised position is in contact with or indirectly supported by the second clamp device 35, enters the second clamp device 35 into the press device 16, and seals the package 38 in the press device 16. 36 is set to an operating position at a height that allows gripping (see FIG. 18 and the like). And since the 2nd clamp apparatus 35 in an operating position moves on the raising / lowering roller conveyor 70 at the time of forward / backward movement, it can perform the forward / backward movement smoothly, maintaining an operating position.

  On the other hand, when the elevating roller conveyor 70 is moved downward, the second clamp device 35 is lowered accordingly, and is positioned at a standby position below the conveying surface of the carry-out conveyor device 32 (see FIG. 19 and the like). The second clamp device 35 in the standby position is in a non-contact state with the package 38 on the carry-out conveyor device 32. Therefore, the second clamping device 35 moves under the packaging body 38 even when the packaging body 38 exists on the carry-out conveyor device 32 by moving toward the pressing device 16 while maintaining the standby position. This movement can be performed. The second clamp device 35 may not be supported by the elevating roller conveyor 70 in the standby position, but if the second clamp device 35 is supported in the same manner as the operating position, the forward and backward movement of the second clamp device 35 is stabilized. It is good because it is done.

  As shown in FIG. 9 and the like, a second clamp moving device 39 for moving the second clamp device 35 in the front-rear direction and the like is disposed below the carry-out conveyor device 32. The second clamp moving device 39 includes a driving belt 73 disposed below the product belt conveyor 42, a driving pulley 74 and a driven pulley 75 that span the driving belt 73, and a driving motor 76 that is a driving source of the driving pulley 74. Is provided. As shown in FIGS. 12 to 14 and the like, an L-shaped plate 80 is connected to a predetermined position on the upper surface of the drive belt 73. The standing piece 80a of the L-shaped plate 80 is formed with two notches 80b extending forward and backward from the upper end edge thereof.

  Further, the second clamp moving device 39 is installed so as to be able to move forward and backward in addition to the whole, that is, the drive belt 73 and the drive pulley 74 and the driven pulley 75 that span the drive belt 73. That is, for example, as shown by a solid line in FIG. 9, the upstream end of the second clamp moving device 39 is located outside the press device 16, and as shown by a two-dot chain line in FIG. The state where the front end of the head enters the inside of the press device 16 can be taken. Further, the approaching distance can be variably adjusted. In the present embodiment, the tip position of the second clamp moving device 39 is adjusted according to the size and shape of the package 38. That is, for example, when the size and shape of the package 38, more specifically, the overall length in the front-rear direction is short, and the seal portion 36 is located inside the press device 16, the tip position of the second clamp moving device 39 is set inside the press device 16. To be located. On the other hand, for example, when the dimensional shape of the package 38, more specifically, the overall length in the front-rear direction is long, and the seal portion 36 is located outside the press device 16, the tip position of the second clamp moving device 39 is set outside the press device 16. To be located. Thereby, the movement range of the 2nd clamp apparatus 35 accompanying the rotational movement of the drive belt 73 can be set appropriately.

  On the other hand, as shown in FIGS. 12 to 14 and the like, connecting members 81 extending downward are attached to the left and right sides of the base plate 50 of the second clamp device 35. The connecting member 81 includes a flat main body 81a and two guide rollers 81b arranged near the lower end of the main body 81a. The guide roller 81b enters the notch 80b provided in the upright piece 80a of the L-shaped plate 80, and can move up and down in the notch 80b. Further, the guide roller 81b is prevented from being separated from the notch 80b by the stopper member 82.

  Thus, the second clamp device 35 is linked to the pair of drive belts 73 via the connecting member 81 and the L-shaped plate 80 on both the left and right sides. Then, the second clamping device 35 moves forward and backward integrally as the drive belt 73 moves forward and backward. Further, the second clamp device 35 that moves up and down following the up and down movement of the up-and-down type roller conveyor 70 moves the guide roller 81b in the notch 80b, so that the up-and-down movement is guided, and a desired posture can be obtained in a stable posture. Transition to the height position. The second clamp device 35 moves forward and backward in response to the drive of the drive belt 73 at any height position.

  In the above-described embodiment, the entire position of the second clamp moving device 39 including the drive motor 76 is moved to make the tip position variable. However, the present invention is not limited to this. For example, the drive motor 76, the drive The position of the pulley 74 may be fixed and the position of the driven pulley 75 may be moved to variably adjust the tip position. In addition, the present invention does not necessarily require such a variable tip position, and may be one in which the tip position is fixedly installed. Even in this case, it is possible to cope with the dimensional shape of the package 38 by adjusting the range in which the drive belt 73 rotates in the forward and reverse directions.

  In the above-described embodiment, the second clamp device 35 is configured to be able to take a standby posture in which the upper clamp claw member 52 is largely opened. However, the present invention is not limited to this, and The opening angle is arbitrary and may be an acute angle. In the above-described embodiment, the opening and closing operations of the upper clamp claw member 52 and the lower clamp claw member 51 rotate forward and backward with the base end side as the center of rotation, but various configurations such as vertical movement are performed. Can be taken.

  In the above-described embodiment, the second clamp device 35 enters between the press upper plate 18 and the press lower plate 17 in a state in which the press upper plate 18 is lowered and the article 4 is compressed. The present invention is not limited to this, and the second clamp device 35 may be entered after the press upper plate 18 has moved up.

  In the above-described embodiment, the top seal device 33 is provided and both the front and rear sides in the film traveling direction are sealed. However, the present invention is not limited to this, and one or both top seals are not performed. It is good also as the state which both opened. Alternatively, the side seal device 25 may be provided only on one side to form a three-side sealed package with one side opened.

  Further, in the above-described embodiment, the top seal device 33 is fixedly installed. However, as with the side seal device 25, for example, the press device moves in the width direction, and it can be a mobile sealer that seals while moving in accordance with the movement. Good. Further, in the above-described embodiment, the total length of the top sealer 34 is longer than the film width, and the top sealer 34 sandwiches the film at one time and seals the lateral direction of the film, but the present invention is not limited to this. Sealing may be performed while moving in the width direction.

  In the above-described embodiment, the second clamping device 35 that is the gripping means is moved up and down so that the space below the transport path can be moved. However, the present invention is not limited to this, and for example, it moves forward and backward on the transport path. You may make it move.

  In the above-described embodiment, the drive belt 73 or the like is used as the moving means for moving the second clamping device 35 that is the gripping means forward and backward. However, the present invention is not limited to this, and for example, the gripping means is used. As a moving means for moving, a method of moving back and forth by expanding and contracting a cylinder, and a moving member is moved back and forth by extending a support member from various moving means moving on the side of the press device and connecting it to the gripping means. Various methods, such as a method for making them, may be used.

  In each of the above-described embodiments and various modifications, a packaging machine that sandwiches an object to be packaged with two films and manufactures a four-side sealed package that seals four sides has been described, but the present invention is not limited to this. For example, it is good also as a packaging machine which manufactures the three-side seal packaging body which bends the film of 1 sheet and pinches | wraps the to-be packaged object, and seals a predetermined part. Moreover, when performing various packaging processes, it is good also as a packaging apparatus and a packaging method which manufacture the package body which provided the unsealed part partially in the seal part. Moreover, an unsealed part may be provided in one side and may be provided in two or more sides. The side seal device can be configured to be able to seal in both reciprocating directions. For example, if the nip roller is changed to a press roller so that the press roller is arranged on both sides of the bar sealer, the upper and lower surfaces heated by the bar sealer can be moved in either the forward direction or the backward direction. The film can be pressed and adhered with a press roller.

DESCRIPTION OF SYMBOLS 1 Packaging machine 2 Packaging machine main body 3 Film supply apparatus 4 Packaged object 5 Packaged article supply apparatus 10 Upper film 11 Lower film 16 Press apparatus 17 Press lower board 18 Press upper board 25 Side seal apparatus 33 Top seal apparatus 35 Second clamp Device 36 Sealing part 37 Side seal part 38 Package 39 Second clamp moving device 40 Package unloading device 41 Roller conveyor 42 Product belt conveyor 51 Lower clamp claw member 52 Upper clamp claw member 57 Cylinder 60 Guide plate 61 Side guide plate 70 Elevating Type roller conveyor 71 cylinder 73 drive belt

Claims (8)

A press means for compressing a packaged object sandwiched between films from above and below,
Sealing means for adhering the edges of the upper and lower films;
Package body unloading means for unloading the package body sandwiched in a compressed state with the upper and lower films to which the edges are bonded, from the press means,
With
The packaging body carrying means includes a gripping means for gripping the film, a moving means for moving the gripping means, and a transport path for the packaging body drawn out by the gripping means,
The packaging machine is characterized in that the moving means has a function of moving the gripping means forward and backward, and can be moved to the inside of the pressing means.   The moving means is configured such that at least a part thereof can enter a lower space of a press lower plate of the press means, and a linking member that links the moving means and the gripping means is provided above and below the press lower plate. The packaging machine according to claim 1, wherein the packaging machine is movable along a groove that passes therethrough.   3. The packaging according to claim 1, wherein the moving unit has a function of moving the gripping unit up and down, and is configured to be able to move forward in the lower space of the conveyance path toward the pressing unit. Machine.   The packaging machine according to claim 3, wherein the moving means includes a roller conveyor capable of supporting the gripping means and a means for moving up and down the roller conveyor. The moving means includes a driving belt arranged along the conveying direction of the package, and driving means for rotating the driving belt forward and backward,
5. The structure according to claim 1, wherein the gripping means is configured to be linked to the drive belt and to perform the forward / backward movement following a forward / reverse rotational movement of the drive belt. 6. The packaging machine described.   6. The packaging machine according to claim 5, wherein the upstream end position of the drive belt is adjustable in the front-rear direction. The gripping means includes a pair of clamp claws that open and close,
The pair of clamp claws at least opens and closes by rotating forward and backward around a rotation axis provided on the base end side of the upper clamp claw,
The ends of the pair of clamp claws in the open state are positioned on opposite sides of the rotation shaft, and the height of the pair of clamp claws in the open state is the pair of clamp claws in the closed state. The packaging machine according to claim 1, wherein the packaging machine is equal to or lower than the height of the packaging machine.   The packaging machine according to claim 7, wherein the opening and closing is performed by a cylinder drive.

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