JP2012240700A - Deaeration device for horizontal type bag-making filling machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a deaeration device for a horizontal type bag-making filling machine capable of performing deaeration to a state where remaining air in a bag is reduced.SOLUTION: A first pressing member 42 elevated and lowered by a first cylinder 48 is disposed on the downstream side of an upper seal body 12. A deaerating member 44 for horizontally rotating between a receded position and a deaerating position by an operating cylinder 52 is disposed on the side of a conveyance conveyor 20. The first pressing member 42 is lowered before a pair of seal bodies 12, 14 pinch a cylindrical film F and become engaged, and a film extension part 50 extending from a downstream end edge of an article W to the downstream side is pressed by a first pressing face 42a, and a second pressing face 42b presses the cylindrical film F on an upper face of the article W. Internal air is pushed to the upstream side by stroking the lower side of the film extension part 50 pressed at the upper side by the first pressing face 42a from the downstream side toward the upstream side by the deaerating member 44 by moving the film extension part 50 to the downstream side.

Description

  The present invention relates to a deaeration device for a horizontal bag making and filling machine for obtaining a degassed pillow package.

  In a horizontal bag making and filling machine, when a horizontal seal is applied in a direction intersecting the conveying direction of the cylindrical film at the front and rear positions between the articles supplied at predetermined intervals in the cylindrical film formed by the bag making means. As a deaeration device for removing excess air in the tubular film, there are techniques described in Patent Document 1 and Patent Document 2, for example.

  In the devices disclosed in both patent documents, the articles contained in the cylindrical film are pressed against the conveying conveyor by pressing members from the upper side in accordance with the timing of sandwiching the cylindrical film by a pair of sealing bodies and performing horizontal sealing. Pressing and extruding the air in the cylindrical film near the article container to the upstream side in the film transport direction, and then sandwiching the film with a sealing body and laterally sealing it so as to obtain a degassed pillow package product I have to.

JP 2004-142810 A Utility Model Registration No. 311669

  Here, for example, a plurality of PTP packages are stacked and packaged with a relatively thick and firm film, such as pillow packages packed with aluminum vapor deposition film, and collected in one or more units. In order to pack the carton in a carton, the film extending portions at the front and rear end portions of the pillow packaged product are folded along the end portions of the stored articles in order to make the storage volume compact. In such a pillow packaged product, particularly in a case where the height of the contained article is high, in the devices disclosed in Patent Documents 1 and 2, only the cylindrical film above the article is pressed against the upper surface of the article by the pressing member. Therefore, the air in the vicinity of the article accommodating part escapes to the film extending part on the downstream end side, and the deaeration in the bag becomes insufficient, and the film extending part can be folded well by the remaining air in the bag. There is a problem that disappears. In addition, since the pillow package product is inflated by the remaining air, there is a difficulty in adopting a relatively large volume bag or box even when the package product is packaged in a bag or a box. be pointed out.

  That is, the present invention has been proposed to solve this problem in view of the above-described problems inherent in the conventional deaeration device, and can be deaerated in a state where the remaining air in the bag is reduced. An object of the present invention is to provide a deaeration device for a horizontal bag making and filling machine.

In order to overcome the above-mentioned problems and achieve the intended object, a deaeration device for a horizontal bag making and filling machine according to the invention of claim 1 comprises:
A horizontal sealing means for performing horizontal sealing with a pair of sealing bodies before and after sandwiching articles supplied at predetermined intervals in the tubular film,
A carry-out conveyor for placing and transporting a package product obtained by transverse sealing with the pair of sealing bodies;
A tubular film film extending from the upper side is supported from the upper side so as to be able to approach and separate from the carry-out conveyor, and extends to the downstream side in the conveyance direction of the article placed on the carry-out conveyor by the first pressing surface when approached. And a pressing member that presses the tubular film against the upper surface of the article with the second pressing surface;
A film that reaches the lower side of the film extension formed at the downstream end of the tubular film in the carry-out conveyor and is supported on the upper side by the first pressing surface of the pressing member by relative movement with the film extension. And a deaeration member for scooping the lower side of the extension part from the downstream side toward the upstream side.

  In the invention which concerns on Claim 2, the said deaeration member was set as the structure which relatively moves horizontally from the downstream to the upstream from the lower side of the film extension part by which the upper side was supported by the said 1st pressing surface. It is characterized by that.

  In the invention which concerns on Claim 3, the said deaeration member is supported so that rotation is possible, and it rotates to the position which faces the lower side of the film extension part in the said carry-out conveyor, and the lower side of a film extension part is downstream from a downstream side. It is characterized in that it is configured to be hammered toward the upstream side.

  In the invention according to claim 4, the tubular film is placed before the engagement of the sealing body at the upstream position of the article where the tubular film is pressed onto the upper surface by the second pressing surface and downstream of the engagement position of the pair of sealing bodies. A pair of second pressing members sandwiched from above and below are provided.

  The invention according to claim 5 is characterized in that the second pressing member is configured to sandwich the cylindrical film after the cylindrical film is pressed against the article by the second pressing surface.

  In the invention which concerns on Claim 6, a conveyance conveyor is arrange | positioned in the upstream of a pair of said sealing body, and the opposing edge part of a conveyance conveyor and an unloading conveyor is approached relatively so that the opposing movement of the said sealing body is accept | permitted. -It is configured to be able to move apart, and is configured to widen the opposed end prior to the operation of sandwiching the tubular film with the second pressing member.

  In the invention according to claim 7, a third pressing member is disposed on the upstream side of the pair of seal bodies, and the third pressing member is used to hold the tubular film on the upper surface of the article with the second pressing surface. The upper surface of the subsequent article placed on the conveyor is pressed after being attached.

According to the first aspect of the present invention, a pillow package that effectively deaerates the air in the bag can be obtained even in a pillow package having a relatively long film extension, and the film extension is bent. Can do well.
According to the second aspect of the present invention, the film extending portion supported by the first pressing surface is stroked by the deaeration member so as to be flat, and the air in the film extending portion is pushed downstream. it can.
According to the invention which concerns on Claim 3, the structure for moving a deaeration member can be simplified.
According to the invention which concerns on Claim 4, it compresses so that the film extension part of the cylindrical film upstream from the articles | goods pressed down by the 2nd pressing surface may be clamped, and the inside of the cylindrical film upstream from the articles | goods Air can be pushed upstream from the clamping position, and the amount of air remaining in the bag can be reduced.
According to the invention which concerns on Claim 5, since a cylindrical film is narrowed down by a 2nd pressing member after pressing a cylindrical film on the upper surface of articles | goods with a 2nd pressing surface, a packaged product with little residual amount of air is obtained. Can do.
According to the invention which concerns on Claim 6, while being able to perform deaeration by a 2nd pressing member reliably, delivery between the opposing edge parts of the conveyance conveyor and carrying-out conveyor of the articles currently supplied to the cylindrical film is possible. It can be performed well.
According to the seventh aspect of the present invention, when the cylindrical film is squeezed by the sealing body by pressing the upper surface of the subsequent article with the third pressing member, the article is displaced or the posture is changed. It is possible to prevent the occurrence of defective packaging such as wrinkles and other defective seals.

It is a principal part schematic front view of a horizontal bag-making filling machine provided with the deaeration apparatus which concerns on an Example. It is a principal part schematic side view of the horizontal bag-making filling machine which concerns on an Example. It is a principal part top view of the deaeration apparatus which concerns on an Example. It is a principal part schematic front view which shows the mechanism part which opens and closes the opposing edge part of the conveyance conveyor and carrying-out conveyor which concern on an Example. It is effect | action explanatory drawing in the deaeration process by the deaeration apparatus which concerns on an Example.

  Next, a degassing apparatus for a horizontal bag making and filling machine according to the present invention will be described below with reference to the accompanying drawings by giving a preferred embodiment. In addition, in an Example, upstream and downstream are designated by the relationship with the conveyance direction of the cylindrical film F conveyed by the conveyance conveyor 18 and the carry-out conveyor 20. FIG.

  The horizontal bag making and filling machine continuously feeds a cylindrical film F in the longitudinal direction of a cylindrical film F formed in a cylindrical shape by bag making means by a vertical sealing mechanism, while the cylindrical film F is fed by a feeding means. F is conveyed toward the downstream side. Further, the articles W are supplied into the cylindrical film F formed by the bag making means at predetermined intervals by the supply means, and before and after the articles W in the cylindrical film F, the horizontal seal mechanism (lateral seal means) 10 is moved up and down. A pillow package 16 is obtained by transverse sealing and cutting with the pair of seal bodies 12 and 14.

  As shown in FIG. 1, a transport conveyor 18 is disposed on the upstream side with the horizontal seal mechanism 10 interposed therebetween, and a transport conveyor 20 having a transport level matching that of the transport conveyor 18 is disposed in series on the downstream side. The In the horizontal sealing mechanism 10, a first support member 22 and a second support member 24 are arranged vertically opposite to each other across the conveyance path of the tubular film F between the conveyance conveyor 18 and the carry-out conveyor 20. Both support members 22 and 24 are configured to relatively move toward and away from each other by a known operation mechanism. The upper seal body 12 is disposed on the first support member 22 on the upper side, and the lower seal body 14 is disposed on the second support member 24 on the lower side, so that the two support members 22 and 24 approach each other. The upper and lower seal bodies 12 and 14 mesh with each other so as to sandwich the tubular film F, and the film F is configured to be laterally sealed so as to intersect the film transport direction.

  The pair of seal bodies 12 and 14 are laterally sealed by sandwiching and meshing so as to narrow the tubular film F closer to each other from a position farthest from the tubular film F, and the tubular film. A so-called box motion operation is performed in which the F is horizontally moved by a required distance toward the downstream side with the F being sandwiched, and then moved toward the upstream side again after being separated from each other. Note that when the cylindrical film F is sandwiched and meshed with the seal bodies 12 and 14, the cylindrical film F is cut at the seal portion by a cutter disposed on one seal body 12.

  The transport conveyor 18 and the transport conveyor 20 include a conveyor frame 21 in which a movable frame is movably arranged in the film transport direction with respect to a fixed frame, and a plurality of pulleys pivotally supported by the conveyor frame 21 are provided. An endless belt 26 is wound so as to be able to run. The conveyance speed of the carry-out conveyor 20 is set to be higher than the conveyance speed of the conveyance conveyor 18. Further, between the turning portions of the endless belts 26 wound around the end of the transport conveyor 18 and the start of the carry-out conveyor 20, small-diameter rollers 28 are rotatably disposed on the corresponding movable frames.

  Opposing end portions of the transport conveyor 18 and the carry-out conveyor 20 are connected to the horizontal seal mechanism 10 via an opening / closing mechanism 30, and are directed forward and backward in the film transport direction in synchronization with the lower seal body 14 in the horizontal seal mechanism 10. And move away from and close to each other. That is, in the state where the lower seal body 14 is located at the lowest point, as shown in FIG. 1 and FIG. The opposing end portions are separated from each other, and a gap that allows the lower seal body 14 to move upward is formed between the opposing end portions of the conveyors 18 and 20. Further, the carry-out conveyor 20 of the embodiment is configured to move the upstream end toward the front and rear in the film transport direction when the lower second pressing member 46 described later moves up and down, and the second pressing member Prior to the operation of sandwiching the tubular film F between 46 and 46, the gap between the opposite end portions of the conveyors 18 and 20 is further widened to allow the second pressing member 46 to move upward.

  In the opening / closing mechanism 30, as shown in FIG. 4, cam plates 32 having cam grooves 32a are respectively disposed on the movable frames of the conveyors 18 and 20, and side plates that move integrally with the second support member 24 are provided. 34 is provided with a first holder 36 that supports a first roller 36a that is movably engaged with a cam groove 32a on the conveyor side, and is also movably engaged with a cam groove 32a on the carry-out conveyor side. A second holder 40 that supports the second roller 40a is disposed via a drive cylinder 38. That is, when the rollers 36a and 40a move up and down together with the second support member 24, the movable frames move toward and away from each other under the engaging action with the cam grooves 32a and 32a. The opposite end is configured to open and close. Further, by urging the drive cylinder 38 forward and backward, the movable frame of the carry-out conveyor 20 is independently moved toward the front and rear in the film conveyance direction.

  As shown in FIGS. 1 and 2, the deaeration device is located on the downstream side of the pair of seal bodies 12, 14 and is located above the carry-out conveyor 20 and moves toward and away from the tubular film F. 1 pressing member 42 and a deaeration member 44 that horizontally moves between the first pressing member 42 and the conveying surface of the carry-out conveyor 20 and moves from the downstream side to the upstream side downstream from the article W. And a pair of second pressing members 46 and 46 that sandwich the tubular film F from above and below between the pair of seal bodies 12 and 14 and the first pressing member 42.

  The first pressing member 42 is connected to driving means including a first cylinder 48 disposed on the first support member 22 so as to move up and down integrally with the movement of the upper seal body 12 and in the film transport direction. Configured to move forward and backward. Further, the first pressing member 42 can be moved up and down independently of the up-and-down movement of the upper seal body 12 by the first cylinder 48, and the operation position and cylinder in which the lower surface approaches the transport surface of the carry-out conveyor 20. It is configured to move up and down between standby positions spaced above the conveyance path of the film-like film F. The first pressing member 42 is formed in a block shape with an elastically deformable material such as sponge or soft rubber, and the width of the first pressing member 42 is larger than the horizontal seal. The horizontal width dimension is set so as to hold down the tubular film F, and is configured to support and abut the entire surface of the film extending portion 50 extending downstream of the article W on the downstream side of the tubular film F. The The lower surface of the first pressing member 42 is formed on the downstream side and has a first pressing surface 42a having a plane parallel to the conveying surface, and is formed upstream of the first pressing surface 42a and above the first pressing surface 42a. Each of the second pressing surface 42b and an inclined surface 42c that is inclined and connected so as to descend from the second pressing surface 42b toward the first pressing surface 42a are provided. The second pressing surface 42b is set to a dimension that allows the cylindrical film F to be pressed against the upper surface of the article over a region longer than approximately half of the article W in the front-rear direction at the operating position. Furthermore, in a state where the second pressing surface 42b presses the tubular film F against the upper surface of the article W, the first pressing surface 42a is set to be positioned approximately in the middle of the height of the article W (FIG. 5 ( c)).

  A deaeration member 44 formed of a round bar-like material is pivotally supported on one side of the carry-out conveyor 20 so as to be rotatable in a horizontal direction, and the deaeration member 44 is connected to one end separated from the pivotal support. As shown in FIG. 3, the working cylinder 52 such as an air cylinder as a means extends across the retreat position retracted outward from the conveyance path of the tubular film F in the carry-out conveyor 20 and the conveyance path of the carry-out conveyor 20. It is configured to rotate horizontally between the deaeration positions. Further, the deaeration member 44 faces the lower side of the film extending portion 50 pressed downward by the first pressing surface 42a of the first pressing member 42 so that the film extending portion 50 can be attached by scissors. In addition to being positioned, at the deaeration position, the edge portion is configured to be in a posture substantially parallel to the first pressing surface 42a.

  As shown in FIG. 1, the upper second pressing member 46 is connected to driving means comprising a second cylinder 54, and the lower second pressing member 46 is driving means comprising a second cylinder 54. It is connected to. Each of the second pressing members 46 and 46 is disposed on the first support member 22 and the second support member 24 on which the seal bodies 12 and 14 are disposed, and is integrated with the seal bodies 12 and 14. And is moved up and down in the film conveyance direction. In addition, the pair of second pressing members 46 and 46 move toward and away from each other by the forward / reverse biasing of the corresponding second cylinders 54 and 54 independently of the up and down movement of the pair of seal bodies 12 and 14. Configured to do. The second pressing members 46, 46 are formed in a block shape with the same material as the first pressing member 42, and before the pair of seal bodies 12, 14 are engaged, the second cylinder 54, It moves to the position which protrudes from the sealing surface of the corresponding sealing bodies 12 and 14 by 54, and is comprised so that the cylindrical film F of the upstream of the article | item W can be clamped from the upper and lower sides. Moreover, the 2nd pressing members 46 and 46 are set to the width dimension which can clamp the cylindrical film F over the full width, as shown in FIG.

  An upstream side of the upper seal body 12 is supported by the first support member 22 provided with the upper seal body 12 so that the upper seal body 12 can be raised and lowered. A third pressing member 56 to be pressed is provided. The third pressing member 56 is an article W positioned immediately upstream of the seal bodies 12 and 14 placed on the transport conveyor 18 immediately before the pair of seal bodies 12 and 14 are engaged with the cylindrical film F. It is positioned so as to hold down the upper surface. Note that the third pressing member 56 is configured to be aligned so as to be a pressing position suitable for the height of the article W. The third pressing member 56 is formed of a material equivalent to that of the first pressing member 42 and has a length that can contact the entire upper surface of one article W located immediately upstream of the seal bodies 12 and 14. Set to the width dimension.

  As shown in FIG. 3, a gusset is provided with a pair of pushing pieces 58 and 58 facing each other across the conveyance path of the tubular film F at the front and rear positions in the film conveyance direction across the pair of seal bodies 12 and 14, respectively. A means 60 is provided. The gusset forming means 60 is disposed so as to be able to move integrally with the movement of the pair of seal bodies 12 and 14 in the film conveying direction, and the pushing pieces 58 and 58 move the seal bodies 12 and 14 up and down. Synchronously moved toward and away from each other and moved horizontally between a retracted position retracted from the transport path and a folding position close to the film transport center. In addition, each pushing piece 58,58 is formed in the flat plate shape extended in a film conveyance direction, and the side surface of the cylindrical film F laterally sealed by a pair of sealing bodies 12 and 14 is a film in the middle of a height direction. It folds inward over a predetermined length in the transport direction.

  Next, the operation of the deaerator of the horizontal bag making and filling machine according to the above-described embodiment will be described.

  The cylindrical film F in which the articles W are stored at predetermined intervals is placed on the transport conveyor 18 and transported toward the lateral seal mechanism 10 as shown in FIG. In the process in which the pair of seal bodies 12, 14 approach from a position where they are separated from each other, the pushing pieces 58, 58 of the gusset forming means 60 move from the retracted position to the folding position and sandwich the pair of seal bodies 12, 14. By folding both side surfaces of the tubular film F inward before and after in the film transport direction, gusset folding is performed on the front and back side surfaces of the tubular film F across the article W. In addition, after the article W accommodated in the tubular film F passes through the transfer portion between the transport conveyor 18 and the carry-out conveyor 20, the opposed end portions of the transport conveyor 18 and the carry-out conveyor 20 which are opposed to each other by the opening / closing mechanism 30 are mutually connected. A gap is defined to allow the lower seal body 14 to move upward (opposite movement of the seal bodies 12 and 14).

  Further, at the timing before the pair of seal bodies 12 and 14 are engaged with each other while sandwiching the tubular film F, the deaeration member 44 is retracted by the operating cylinder 52 as shown in FIGS. 5 (a) and 5 (b). The deaeration member 44 is rotated horizontally from the position toward the deaeration position and faces the lower side of the film extension 50 extending downstream from the article W at the downstream end of the tubular film F. Extending across. Further, immediately before the pair of seal bodies 12 and 14 are engaged with the tubular film F, the first pressing member 42 is moved from the standby position to the operating position by the first cylinder 48, and the first pressing member The film extending portion 50 is pressed by the first pressing surface 42a of 42, and the tubular film F is pressed by the second pressing surface 42b on the upper surface of the article W.

  The lower side of the film extension portion 50 supported from the upper side so as to be pressed by the first pressing surface 42a along with the conveyance of the tubular film F is advanced by the conveyance of the tubular film F, thereby removing the deaeration member. At 44, the film is applied with scissors from the downstream side in the film conveying direction toward the upstream side. Thus, the air in the film extending part 50 is pushed toward the upstream of the article W by the film extending part 50 being flatly spread by the first pressing surface 42 a and the deaeration member 44. Since the edge of the degassing member 44 at the degassing position is substantially parallel to the first pressing surface 42a, the film extending portion 50 is flattened with the first pressing surface 42a over the entire width. By crushing, the air in the extension can be effectively pushed upstream. In addition, since the deaeration member 44 is formed in a round bar shape, the extension part 50 is not damaged when the film extension part 50 is applied with a scissors. Further, when the first pressing surface 42a and the deaeration member 44 are deaerated, the tubular film F is pressed against the upper surface of the article over a region longer than approximately half of the article W in the front-rear direction by the second pressing surface 42b. Therefore, it is possible to obtain a packaged product with a small amount of air remaining around the article.

  Note that the first pressing member 42 is pressed between the article W and the film extending portion 50 in the operating position by pressing the upper side of the film extending portion 50 with the inclined surface 42c as shown in FIG. The amount of air remaining in the space can be suppressed.

  Immediately after the article W has passed through the transfer conveyor 18 to the carry-out conveyor 20, the transfer upstream end of the carry-out conveyor 20 moves further downstream, and between the opposite end portions of the transfer conveyor 18 and the carry-out conveyor 20. The pair of second pressing members 46 and 46 are moved by the second cylinders 54 and 54 so as to be close to each other. Thereby, both the 2nd pressing members 46 and 46 protrude from the sealing surface of the corresponding seal bodies 12 and 14, and the cylindrical film F on the upstream side of the article W is sandwiched from above and below, so that the inside of the cylindrical film F The air on the upstream side of the article W is pushed upstream from the clamping position. Thereafter, the seal bodies 12 and 14 are engaged with each other, and the cylindrical film F is laterally sealed and cut, whereby the pillow package 16 is obtained.

  The second pressing members 46, 46 narrow down the tubular film F after pressing the tubular film F against the upper surface of the article W by the second pressing surface 42b of the first pressing member 42. Fewer packaging products can be obtained. Further, after the cylindrical film F is pressed against the upper surface of the article W by the second pressing surface 42b of the first pressing member 42, the sealing bodies 12 and 14 are engaged with the cylindrical film F sandwiched therebetween. Immediately before, the succeeding article W immediately upstream of the seal bodies 12 and 14 is pressed from above by the third pressing member 56, and the article W is held on the transport conveyor 18 together with the tubular film F. By providing the third pressing member 56, the first pressing member 42 and the second pressing members 46, 46 restrict the movement of the position of the article W, and the film is stretched. Since the cylindrical film F is sandwiched and sealed between the sealing bodies 12 and 14, it is possible to prevent the article W from being displaced or to change its posture, and generation of defective packaging such as wrinkles and other defective seals. Can be prevented in advance.

  Immediately after the pair of seal bodies 12 and 14 are engaged with the tubular film F sandwiched, the deaeration member 44 is moved to the retracted position by the operating cylinder 52, and the first pressing member 42 is The second pressing members 46 and 46 are moved away from each other by the second cylinders 54 and 54, and the pressing of the article W and the film is released. The pillow package 16 is allowed to be conveyed. Since the endless belt 26 of the carry-out conveyor 20 travels at a higher speed than the endless belt 26 of the transport conveyor 18, the preceding pillow package 16 that has been laterally sealed and cut by the lateral seal mechanism 10 is removed from the subsequent unwrapped product. Surely separated. In addition, at the required timing until the sealing bodies 12 and 14 release the tubular film F, the pushing pieces 58 and 58 of the gusset forming means 60 are retracted toward the retracted position, and the transport mechanism 30 performs the conveyance. The opposing ends of the conveyor 18 and the carry-out conveyor 20 are close to each other, the gap between the opposing ends of the conveyors 18 and 20 is reduced, and the delivery of the article W supplied to the tubular film F between the conveyors is not hindered. Done.

  In the deaeration device of the embodiment, the film extending portion 50 extending from the downstream edge of the article W to the downstream side at the downstream end of the tubular film F is flattened by the first pressing member 42 and the deaeration member 44. So that the air in the extending portion is effectively pushed upstream, so that a relatively long film extending portion 50 is provided, for example, when there is a bending margin with a margin before and after the contained article. In obtaining the pillow package product 16, the air remaining in the bag can be deaerated in a reduced state. Therefore, it is possible to favorably fold the front and rear film extending portions 50 in the obtained pillow package 16.

  Since the tubular film F on the upstream side of the article W pressed by the second pressing surface 42b of the first pressing member 42 is sandwiched by the second pressing members 46, 46, The air is pushed upstream without returning to the downstream side, and the remaining air in the film extension 50 before and after the obtained pillow package 16 can be further reduced. Moreover, in an Example, by forming the gusset before and after sandwiching the article W in the tubular film F, when the film extension part 50 is bent, the bag does not swell and the appearance is not impaired. Furthermore, since the deaeration member 44 is configured to move horizontally between the retracted position and the deaeration position by the operation cylinder 52, the operation mechanism of the deaeration member 44 can be simplified.

(Example of change)
The present invention is not limited to the configuration of the embodiment, and can be modified as follows, for example.
(1) In the embodiment, the deaeration member 44 is placed horizontally between a retreat position that does not obstruct the conveyance of the article W on the outer side of the carry-out conveyor 20 and a deaeration position that extends across the conveyance path of the carry-out conveyor 20. Although configured to rotate, the deaeration member 44 that moves from the retracted position and extends so as to cross the transport path of the carry-out conveyor 20 is linearly moved horizontally toward the upstream side in the film transport direction. The deaeration member 44 prevents the conveyance of the article W by the carry-out conveyor 20, such as a form in which the film extension part 50 is exposed to the lower side and a form protruding from the lower side of the conveyance surface to the deaeration position above the conveyance surface. Various forms can be adopted as the form of moving from the position where the transfer is not performed to the position extending across the conveyance path of the carry-out conveyor 20.
(2) In the embodiment, the film extending portion 50 moves to the downstream side with respect to the deaeration member 44 in the stationary state after reaching the deaeration position, so that the first pressing surface 42a of the first pressing member 42 is obtained. The lower side of the film extension part 50 whose upper side is supported so as to be pressed by the upper side is scooped, but the film extension part 50 is moved while moving the deaeration member 44 from the downstream side in the film transport direction to the upstream side. It is sufficient that the film extending portion 50 is boiled by a relative movement between the extending portion 50 and the deaeration member 44, such as a brooming mode.
(3) In the embodiment, the first pressing surface 42a and the second pressing surface 42b are formed on the single first pressing member 42. However, the first pressing surface 42a and the second pressing surface 42b are separately provided. The first pressing member may be constituted by the two pressing members formed in the above, or each pressing member may be moved toward and away from the carry-out conveyor 20 by driving means such as a separate cylinder. Further, in the embodiment, the first pressing surface 42a and the second pressing surface 42b are configured to move vertically in the vertical direction. However, the operation mode is configured to rotate from the standby position on the side of the carry-out conveyor 20 to the operating position. It is good.
(4) In the embodiment, the first and second pressing members 42, 46 and the deaeration member 44 are driven by the cylinders 48, 54, 52. However, as the driving means for the members 42, 46, 44, Other driving means such as a motor may be employed.
(5) In the embodiment, the article W is pressed by the weight of the third pressing member 56 that descends together with the upper seal body 12. However, like the other pressing members 42 and 46, the driving means such as an air cylinder is used. A configuration for pressing the article W may be employed. Further, the third pressing member 56 is not limited to a size capable of pressing a single article W immediately upstream of the seal bodies 12 and 14 as in the embodiment, but has a size capable of pressing a plurality of articles W. Various types of pressing members, such as a configuration in which a plurality of articles W are pressed with an endless belt in which a pressing surface that travels with the conveyor 18 is configured with an elastic material such as sponge, can be used. In addition, the 3rd pressing member 56 should just be employ | adopted as needed.
(6) In the embodiment, prior to the approaching movement of the pair of second pressing members 46, 46, the upstream end of the carrying of the carry-out conveyor 20 is set downstream in order to secure a gap that allows the second pressing member 46 to move upward. However, when the article length is long, etc., a clearance that allows the upward movement of the lower seal body 14 formed between the opposed end portions of the transport conveyor 18 and the carry-out conveyor 20 has a margin in advance. The presence or absence of movement of the carry-out conveyor 20 for securing a gap that allows the second pressing member 46 to move upward may be selected as appropriate by setting the size to a predetermined size. In addition, as a means for moving the upstream end of the carry-out conveyor 20 in the film conveyance direction, various drive means such as a motor can be employed instead of the drive cylinder 38 of the embodiment.
(7) In the embodiment, the second pressing members 46 and 46 are configured to move toward and away from each other by the second cylinders 54 and 54. However, the second pressing members 46 and 46 protrude from the sealing surfaces of the corresponding seal bodies 12 and 14, and Before the seal bodies 12 and 14 are engaged with each other, the elastic member is biased by an elastic member such as a spring so as to be positioned in such a positional relationship that the cylindrical film F can be clamped, and the elastic member contracts while the cylindrical film F is clamped. The structure which accept | permits the mesh | engagement of the sealing bodies 12 and 14 may be sufficient. Further, the second pressing members 46, 46 can be omitted.
The configuration described in the embodiment is not limited to the above-described modification example, and various other configurations can be adopted without departing from the gist of the present invention.

10 Horizontal seal mechanism (transverse seal means), 12 Upper seal body (seal body)
14 Lower seal body (seal body), 16 Pillow packaged product (packed product), 18 Transport conveyor 20 Unload conveyor, 42 First pressing member (pressing member), 42a First pressing surface 42b Second pressing surface, 44 Deaeration Member, 46 second pressing member, 50 film extending portion 56 third pressing member, F cylindrical film, W article

Claims (7)

A horizontal sealing means (10) for performing horizontal sealing with a pair of sealing bodies (12, 14) before and after sandwiching articles (W) supplied at predetermined intervals in the tubular film (F),
A carry-out conveyor (20) for placing and transporting the packaged product (16) obtained by transverse sealing with the pair of seal bodies (12, 14);
It is disposed so as to be able to approach and separate from the carry-out conveyor (20), and when it approaches, the first push surface (42a) extends downstream in the conveyance direction of the article (W) placed on the carry-out conveyor (20). A pressing member (42) for supporting the film extension (50) of the cylindrical film (F) from above and pressing the cylindrical film (F) against the upper surface of the article (W) by the second pressing surface (42b); ,
In the carry-out conveyor (20), it reaches the lower side of the film extension part (50) formed at the downstream end of the tubular film (F), and the pressing member is moved relative to the film extension part (50). A degassing member (44) for stroking the lower side of the film extension part (50) supported on the upper side by the first pressing surface (42a) of (42) from the downstream side toward the upstream side; Degassing device for horizontal bag making and filling machine.   The deaeration member (44) is configured to relatively horizontally move the lower side of the film extension part (50) supported on the upper side by the first pressing surface (42a) from the downstream side toward the upstream side. The deaeration apparatus for a horizontal bag making and filling machine according to claim 1, wherein   The deaeration member (44) is rotatably supported and is rotated to a position facing the lower side of the film extension part (50) in the carry-out conveyor (20) to be below the film extension part (50). The deaeration device for a horizontal bag making and filling machine according to claim 1 or 2, wherein the bag is configured to be scooped from the downstream side toward the upstream side.   At the upstream position of the article (W) where the tubular film (F) is pressed against the upper surface by the second pressing surface (42b), downstream of the meshing position of the pair of sealing bodies (12, 14), the sealing body (12 , 14) are provided with a pair of second pressing members (46, 46) that sandwich the tubular film (F) from above and below before meshing. Degassing device for horizontal bag making and filling machine.   The second pressing member (46, 46) is configured to hold the tubular film (F) after the tubular film (F) is pressed against the article (W) by the second pressing surface (42b). The deaeration device for a horizontal bag making and filling machine according to claim 4.   A transport conveyor (18) is disposed upstream of the pair of seal bodies (12, 14), and the transport conveyor (18) and the carry-out conveyor (20) are allowed to allow the seal bodies (12, 14) to face each other. ) And the opposite end portion are configured to be relatively close to and away from each other, and the opposite end portion is widened before the second pressing member (46, 46) sandwiches the tubular film (F). 6. The deaerator for a horizontal bag making and filling machine according to claim 4, wherein the deaerator is configured as described above.   A third pressing member (56) is disposed on the upstream side of the pair of seal bodies (12, 14), and the third pressing member (56) is attached to the article (W by the second pressing surface (42b)). The horizontal shape according to claim 6, wherein the upper surface of the subsequent article (W) placed on the conveyor (18) is pressed after the cylindrical film (F) is pressed onto the upper surface of the horizontal shape. Deaerator for bag making and filling machine.

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