JP2020001756A - Horizontal pillow packaging machine - Google Patents

Abstract

To provide a horizontal pillow packaging machine which can securely prevent a packaged article from being bitten, and can prevent wrinkles of the carriage direction and the perpendicular direction from occurring in an end seal portion, when end-sealing and cutting are given by an end seal device to cylindrical packages that the packaged article is filled and carried continuously.SOLUTION: A horizontal pillow packaging machine 1 comprises a package (packaging material) supply unit 10, and a packaged article filling unit 20 that comprises a making-cylinder machine (former) 23, and a film extraction/center seal/basis weight unit 30, and an end seal unit 40 which performs end-sealing and cutting by clumping a cylindrical package that is centrally sealed between top and bottom by an upper heater block 41 and a lower heater block 42, and a package ironing device 100 which makes a packaged article that locates at an end seal position of the packaged article filled in the cylindrical package move at a non-end seal position far from the end seal position, when the end seal unit 40 performs the end sealing.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a horizontal pillow packaging machine for manufacturing a package in which a packaged product such as a food or a medicine is enclosed.

The pillow wrapping machine is a packing machine that sequentially packs articles to be packaged, such as foods and pharmaceuticals, into a cylindrically shaped packaging material, and seals or cuts the package to produce a package. And there is a horizontal pillow packaging machine.
The horizontal pillow packaging machine sends the packaging material in the left-right direction (horizontal direction) to manufacture a package. The horizontal pillow packaging machine has a cylindrical shape filled with the articles to be packaged and subjected to a center seal. An end seal device for applying an end seal to the packaging material and cutting the end seal portion is provided.
In the end seal device, a tubular packaging material to be packed and conveyed at regular intervals is sandwiched from above and below by a pair of heater blocks and heat-sealed. If the positions are displaced, the heater block may bite the tubular packaging material and the packaged product or a part thereof together, which greatly hinders the production of the horizontal pillow packaging machine.
For this reason, various devices have been proposed in order to prevent biting from occurring in an end seal device or the like of a horizontal pillow packaging machine.
For example, in Patent Document 1 (Japanese Patent Application Laid-Open No. Hei 10-139015), a tubular film containing packages to be packaged is intermittently conveyed at a predetermined interval, and the spaces between the packages in the film from outside the film. A sealing device in a packaging device for sandwiching and thermally sealing a film is disclosed in a packaging device provided with a film push-up body for pushing up the heat sealing position of the film.
Patent Literature 2 (Japanese Patent Application Laid-Open No. 2007-106486) discloses a means for forming a continuously supplied belt-like film into a tubular shape, and a center for sealing the overlapped end of the tubular film formed in the tubular shape. A horizontal pillow provided with a sealing device and an end seal device disposed downstream of the center sealing device and sealed in the width direction of the tubular film with a top sealer disposed vertically above and below the tubular film. A packaging machine, wherein the sealing surfaces of the pair of top sealers are formed so as to rise toward the center from both front and rear sides in the traveling direction, and the pair of top sealers mesh with each other to sandwich the tubular film. Further, there is disclosed a horizontal pillow packaging machine in which the central portion is configured to push up the cylindrical film upward.
Further, Patent Document 3 (Japanese Patent Application Laid-Open No. 2007-297091) discloses a former for shaping a continuous tubular body continuous in a horizontal direction by rolling a continuously fed packaging sheet in a width direction, and a method for packaging an article to be packaged. In an assembled state for each unit, the article supply device that supplies the cylindrical continuous body from the upstream of the former at a set pitch and the side edges of the packaging sheet shaped into the cylindrical continuous body are welded in a superposed state. A center seal device, and an end seal device disposed downstream of the center seal device, wherein the end seal device has the number of the packaging units equal to the number of the packaging units located at the most downstream portion of the tubular continuous body. A packaging device having a function of welding and cutting by sandwiching the cylindrical continuous body between a set of articles and a set of articles to be packaged in a number of packaging units adjacent to the upstream side thereof. In An inclination mechanism for inclining a cutting target portion filled with the set of articles to be packaged located at the most downstream portion of the cylindrical continuous body toward a tip toward a tip end, wherein the end seal is provided. The apparatus discloses a packaging apparatus that welds and cuts a rear end of the cutting target portion inclined to the posture by the inclination mechanism.

However, in the sealing device in the packaging device disclosed in Patent Document 1, by performing push-up by a film push-up body before performing heat sealing, it is possible to eliminate a sealing failure cause from the heat sealing position and prevent sealing failure due to biting. If the packaged product has a height (thickness) that can push up the film greatly, or if the packaged product is slippery against the film such as dust, It is effective, but when the packaged product does not have a height (thickness) and cannot push up the film greatly, or when the packaged object at the biting position is hard to slip on the film, However, there is a problem that even if the package is pushed up, the packaged object is bitten into the sealing device without being shifted from the biting position.
Further, in Patent Document 1, since the film is pushed up by the film push-up body and then sealed by the sealing device, there is a problem that the film pushed up by the film push-up body is sagged or wrinkled, resulting in poor sealing. .
In the horizontal pillow wrapping machine disclosed in Patent Document 2, when a pair of top sealers mesh with each other and sandwich the tubular film, the central portion of the top sealer pushes the tubular film upward, so that foreign matter such as noodle waste is removed from the end seal portion. Even if it is in the (seal planned area), at the time of sealing, foreign matter is pushed to the left and right from the end seal area, and even if the packaged article itself reaches the end seal area due to misalignment, the package is not sandwiched between the sealing surfaces. Although it is pushed into the area and biting is prevented, as in Patent Document 1, when the packaged article does not have a height (thickness), or when the packaged article is hard to slip on the film, the top sealer Even if the central part pushes the tubular film upward, the problem that the packaged material is bitten by the top and lower top sealers without shifting from the end seal part That.
Further, in the horizontal pillow packaging machine of Patent Document 2, since the sealing surface of the top sealer is inclined, the end seal portion of the package is bent upward and formed. There is a problem that the sealing pressure at the time of application is reduced and sealing failure occurs.
In the packaging device of Patent Document 3, since the tilting mechanism is provided, not only the device becomes complicated, but also a semi-packaged product that is tilted by the tilting mechanism. When the rear end of the semi-packaged product is pressed against the rear end of the semi-packaged product by the end sealing device, the encapsulation of the packaged product is prevented. For semi-packed products, the packaged product is not prevented from reaching the sealing position (the rear end of the semi-packed product located at the tip of the tubular continuum and the leading end of the semi-packed product on the upstream side are not However, there is a problem that in the semi-packaged product on the upstream side, the object to be packaged is caught by the end seal device.

By the way, the vertical pillow wrapping machine of the pillow wrapping machine is for feeding a packaging material in a vertical direction (vertical direction) to fill an article to be wrapped to produce a package, but in this vertical pillow wrapping machine also, After filling the article to be packaged into a cylindrical packaging material having a horizontal seal applied to the lower end, when the horizontal seal is applied to the upper end thereof, the filled article is jumped up to the position of the horizontal seal. As a result, there may be a case where the packaged product is caught together with the packaging material by being sandwiched by the heater block.
For this reason, the vertical pillow packaging machine uses the tubular packaging material to seal the packaged product horizontally before applying the horizontal seal to the upper end of the tubular packaging material filled with the packaged product. An ironing device is provided to move the packaged product downward from the position to prevent the packaged product from being caught.
For example, Patent Document 4 (Japanese Patent Application Laid-Open No. 2010-155641) discloses that a pair of ironing bars, which are ironing members, move from an initial position occupied when a pair of horizontal seal portions (horizontal seal blocks) are separated from each other. When the seal portion (horizontal seal block) moves forward in conjunction with the operation of approaching the cylindrical packaging material to seal the cylindrical packaging material, the sealing portion (the horizontal sealing block) contacts the cylindrical packaging material and moves downward. A vertical packaging machine (vertical pillow packaging machine) equipped with an ironing device is disclosed.
However, the ironing device provided in the vertical pillow wrapping machine as disclosed in Patent Literature 4 uses a pair of ironing bars or the like to push the cylindrical packaging material downward with respect to the cylindrical packaging material below the cutting position of the horizontal seal. This is an operation, and the ironing device of the vertical pillow packaging machine cannot be applied to the horizontal pillow packaging machine in which the cylindrical packaging material is transported in the horizontal direction (lateral direction).
Further, in the vertical pillow packaging machine, the bite of the article to be packaged occurs in the cylindrical packaging material below the cutting position of the cutting performed with the horizontal seal, and the cylindrical packaging material above the cutting position. However, in the case of the horizontal pillow packaging machine, the packaged product is not only for the cylindrical packaging material on the downstream side but also for the cylindrical packaging material on the upstream side of the cutting position that is performed together with the end sealing by the end sealing device. The vertical pillow wrapping machine and the horizontal pillow wrapping machine are different in the portion (position) at which the wrapped articles are entrapped. From this point, the ironing device of the vertical pillow wrapping machine is also used as the horizontal pillow wrapping machine. Cannot be applied to

Next, in the horizontal pillow packaging machine, when the end seal is applied, the portion of the tubular packaging material sandwiched between the pair of heater blocks is heat-sealed in a state where wrinkles are generated, which causes a sealing failure and a defective appearance. There is. In particular, when the article to be packaged has a height (thickness), wrinkles are likely to occur at the end seal portion.
For this reason, in an end seal device or the like of a horizontal pillow packaging machine, various devices or the like have been proposed to prevent wrinkles from occurring at the end seal portion.
For example, Patent Literature 5 (Japanese Patent Application Laid-Open No. 2005-29182) discloses a plate-shaped slider which is connected to a pair of sealers of a box motion type end seal device by two link rods to form a parallelogram link. One set of the sliders is provided symmetrically, and the top and bottom surfaces of the sliders face each other, and the sliders contact each other with the tubular film sandwiched before the sealing operation with the tip surfaces of the pair of sealers sandwiching the tubular film. Disclosed is a wrinkle stretching mechanism of an end seal device in which wrinkles generated at a seal portion are retracted to the side surface of each sealer while extending in the width direction while swinging and separating from side to side as the sealers come close to each other and press and contact each other. Have been.
Further, Patent Document 6 (Japanese Patent Application Laid-Open No. 2010-6455) discloses a cylindrical shape which is moved inward from both outer sides crossing a film transport path and crushed by a predetermined amount by an end sealing operation by a seal bar. A sandwiching member that sandwiches both side edges of the film by the film contact portion at the front and rear positions at which the seal bar is sandwiched and pulls outward, and at a front and rear position at which the seal bar is sandwiched when the tubular film is sandwiched by the seal bar. A first pressing portion that sandwiches the center portion in the width direction of the cylindrical film over a predetermined range at a position close to the end seal position of the cylindrical film, and the first pressing portion on both sides of the first pressing portion. The cylindrical film is separated from the pressing position of the cylindrical film in the film transport direction, and a space including a holding portion by the film contact portion of the holding member is provided between the side of the seal bar and the cylindrical film. Wrinkle device end seal portion is disclosed in horizontal bag filling machine which is composed of a pressing member having a second pressing portions sandwiching both sides.

However, in the wrinkle stretching mechanism disclosed in Patent Document 5, the front and rear portions of the end-sealed portion of the tubular film are pressed and pressed against each other with a plate-shaped slider sandwiched therebetween so as to swing right and left. When the slider sandwiches the tubular film, the end-sealed portion of the tubular film expands, and the end-sealed portion may have wrinkles in the horizontal direction (perpendicular to the transport direction). There is a problem that can not be removed.
Also, in the wrinkle removing device of Patent Document 6, the front and rear portions of the end portion of the tubular film are sandwiched between the first holding portion and the second holding portion, and the holding members hold both side edges of the tubular film. In order to pull the film outward, the cylindrical film is sandwiched between the first pressing portion and the second pressing portion, and when the film is pulled by the holding member, wrinkles in the lateral direction (in the direction perpendicular to the conveying direction) are obtained. In some cases, wrinkles in the horizontal direction cannot be completely removed.

JP-A-10-139015 JP 2007-106486 A JP 2007-297091 A JP 2010-155641 A JP 2005-29182 A JP 2010-6455 A

  The problem to be solved by the present invention is that, in a horizontal pillow packaging machine, an end seal device and an end seal device are used to cut and seal a tubular packaging material to be packed and continuously conveyed. In both the upstream and downstream directions in the transport direction, even if the package does not have a height or the package does not slip easily against the packaging material, poor sealing may occur or the end seal of the package may face upward. Therefore, it is possible to surely prevent the packaged product from being caught without being bent, and to prevent the end seal portion from being wrinkled in a direction perpendicular to the conveying direction.

  The invention according to claim 1 is a packaging material supply means for continuously supplying a packaging material, a cylindrical packaging material forming means for molding the packaging material supplied by the packaging material supply means into a cylindrical packaging material, A packaged article filling means for conveying articles at regular intervals and filling the tubular packaging material, and a conveying direction of the packaged article filled with the packaged article at an overlapped end portion of the tubular packaging material; A center sealing means for performing a center seal along the center seal means; an end sealing means for cutting the end of the cylindrical packaging material, which has been subjected to the center seal by the center sealing means, from above and below with a heater block; When performing the end seal, the package that moves the packaged product at the end seal position among the packaged products filled in the tubular packaging material to the non-end seal position that is displaced from the end seal position. A horizontal pillow packaging machine provided with a component moving means, wherein the heater block is an upper heater block disposed above the cylindrical packaging material and a lower side disposed below the cylindrical packaging material. A heater block, wherein the packaged article moving means comprises a pair of upper rod-shaped members arranged in the transport direction so as to face each other between the upper heater block and the tubular packaging material; A pair of lower bar-shaped members arranged in the transport direction so as to face each other between the heater block and the cylindrical packaging material, the pair of upper bar-shaped members, and the pair of lower bar-shaped members; The end-sealed portion of the material is sandwiched between the upstream and downstream sides in the transport direction of the cutting position, and the rod members constituting the pair of upper rod members are moved in a direction to separate from each other, and the pair of upper rod members are moved away from each other. Lower bar Providing lateral pillow packaging machine provided with a rod-like member moving means for moving the rod-like member constituting the member in a direction away from each other, is to solve the above problems.

  In the invention according to claim 2, the rod-shaped member moving means is attached to an elevating means for elevating and lowering the pair of upper rod-shaped members and the pair of lower rod-shaped members, and an upper support member for supporting the pair of upper rod-shaped members. An upper rod-shaped member guiding roller, a lower rod-shaped member guiding roller attached to a lower supporting member for supporting the pair of lower rod-shaped members, and the pair of upper rod-shaped members in contact with the upper rod-shaped member guiding roller. An upper rod-shaped member guide plate for guiding the movement of the rod-shaped member, and a lower rod-shaped member guide for guiding the movement of the rod-shaped member constituting the pair of lower rod-shaped members by contacting the lower rod-shaped member guide roller. A horizontal pillow packaging machine provided with a board is provided to solve the above-mentioned problem.

  According to a third aspect of the present invention, the rod-shaped member moving means urges the pair of upper rod-shaped members to move in a direction approaching each other, and the pair of upper rod-shaped members are separated from each other. Upper rod-shaped member locking means for temporarily preventing the pair of upper rod-shaped members from moving in a direction approaching each other by the upper rod-shaped member urging means, when the upper rod-shaped member urging means moves, and the pair of lower rod-shaped members. Lower rod-like member urging means for urging to move in the direction approaching each other, and when the pair of lower rod-like members move in a direction away from each other, the lower rod-like member urging means An object of the present invention is to provide a horizontal pillow packaging machine provided with a lower rod-shaped member locking means for temporarily preventing a pair of lower rod-shaped members from moving in a direction approaching each other, and solving the above-mentioned problem.

  In the horizontal pillow packaging machine according to the first aspect of the present invention, the end position of the cylindrical packing material filled and continuously conveyed by the end seal device is cut and conveyed at the cutting position. In both the upstream and downstream directions, even if the package does not have a height or if the package does not slip easily against the packaging material, poor sealing may occur or the end seal of the package may face upward. There is an effect that it is possible to reliably prevent the packaged product from being caught without being bent, and to prevent wrinkles in the end seal portion in a direction perpendicular to the conveying direction.

  The horizontal pillow packaging machine according to the second aspect has the same effect as the first aspect.

  In the horizontal pillow packaging machine according to the third aspect of the present invention, furthermore, the upper rod-shaped member locking means prevents the contact between the upper heater block and the upper rod-shaped member, and the lower rod-shaped member locking means prevents the lower heater block from being contacted with the lower heater block. There is an effect that the contact of the rod-shaped member can be prevented.

It is the front view and top view of a horizontal pillow packaging machine. It is a perspective view of the package manufactured by a horizontal pillow packaging machine. FIG. 3 is a perspective view illustrating a schematic configuration of an end seal unit 40. 5 is a left side view of the end seal unit 40. FIG. It is a front view of an opening and closing toggle mechanism rotation part. It is a perspective view showing the state where packaging material ironing device 100 was arranged between upper heater block holder 41b and lower heater block holder 42b. It is a front view of the packaging material ironing apparatus 100 shown in FIG. It is a rear view of the packaging material ironing apparatus 100 shown in FIG. It is a left view of the packaging material ironing apparatus 100 shown in FIG. It is a right view of the packaging material ironing apparatus 100 shown in FIG. It is a front view showing the state before the packaging material ironing apparatus 100 starts operation | movement. It is explanatory drawing showing the state which the ironing operation | movement of the cylindrical packaging material TFi by the packaging material ironing apparatus 100 started. It is explanatory drawing showing the state which the ironing operation | movement of the cylindrical packaging material TFi by the packaging material ironing apparatus 100 was complete | finished. It is explanatory drawing showing the state which has given the end seal to the cylindrical packaging material TFi. It is explanatory drawing showing the state immediately after the end seal and cutting | disconnection to the cylindrical packaging material TFi are complete | finished. It is an explanatory view showing the state where upper ironing part 110 and lower ironing part 120 were locked. It is an explanatory view showing the state where the lock of upper ironing part 110 and lower ironing part 120 was released.

[Configuration of horizontal pillow packaging machine]
The configuration of the horizontal pillow packaging machine of the present invention will be described.
FIG. 1 is a diagram showing a schematic configuration of a horizontal pillow packaging machine, wherein FIG. 1 (a) is a front view and FIG. 1 (b) is a plan view.
In the figure, 1 is a horizontal pillow packaging machine, 2 is a package, 3 is a cylindrical film, 4 is a packaged product, 10 is a packaging material (packaging material) supply unit, 11 is a guide roller, 12 is a pressing roller, 13 Is a feed roller, 14 is a feed roller servo motor, 15 is a guide roller, 20 is a unit for filling the packaged goods, 21 is a supply conveyor, 21a is a conveyor belt, 21b is a positioning attachment, 21c is a drive roller, and 22 is a drive roller. Servo motor, 23 is a cylinder machine (former), 30 is a film pulling / center seal / basis unit, 31a and 31b are paper pulling rollers, 32 is a servo motor for film pulling rollers, 33a and 33b are center seal blocks, 34 Is an opening / closing device, 35a and 35b are weighting rollers, 36 is a servomotor for weighting rollers, and 37 is an intermediate conveyor. 37a is a conveyor belt, 37b is a drive roller, 38 is a drive roller servomotor, 40 is an end seal unit, 41 is an upper heater block, 42 is a lower heater block, 50 is a package discharge unit, 51 is a discharge conveyor, 51a Is a conveyor belt, 51b is a drive roller, 52 is a drive roller servomotor, 100 is a packaging ironing device, 110 is an upper ironing portion, 120 is a lower ironing portion, MR is a winding packaging material, Fi is a continuous film, TFi. Is a cylindrical continuous film.

As shown in FIG. 1, the horizontal pillow packaging machine 1 includes a packaging material (packaging material) supply unit 10, a packaged product filling unit 20, a film drawing / center seal / basis weight unit 30, an end seal unit 40, and a package discharge unit. 50, a packaging material ironing device 100 and the like.
The packaging material (packaging material) supply unit 10 serves as a packaging material supply unit of the present invention, and includes a winding packaging material supply device (not shown), a press roller 12, a feed roller 13, and a feed for rotating the feed roller 13. It comprises a roller servomotor 14, guide rollers 11, 15 and the like.
The packaged product filling unit 20 serves as a packaged product filling means of the present invention, and includes a packaged product supply device (not shown), a supply conveyor 21, and a cylindrical device serving as a cylindrical packaging material forming means of the present invention. The supply conveyor 21 includes a conveyor belt 21a to which positioning attachments 21b are attached at regular intervals, a driving roller 21c, a driving roller servomotor 22 for rotating the driving roller 21c, and the like. .
The film pulling / center sealing / basing unit 30 includes paper pulling rollers 31a and 31b, paper pulling roller servomotor 32, center seal blocks 33a and 33b, opening / closing device 34, weighting rollers 35a and 35b, weighting roller servomotor 36, The intermediate conveyor 37 includes a conveyor belt 37a, a driving roller 37b, a driving roller servomotor 38 for rotating the driving roller 37b, a plurality of rollers for guiding the conveyor belt 37a, and the like. The blocks 33a and 33b, the opening / closing device 34, and the like serve as the center sealing means of the present invention.
The end seal unit 40 includes an upper heater block 41, a lower heater block 42, a mechanism for opening and closing them, a cutting device, and the like (details will be described later).
The package discharging unit 50 includes a conveyor belt 51a, a driving roller 51b, a driving roller servomotor 52 for rotating the driving roller 51b, a discharging conveyor 51 including a plurality of rollers for guiding the conveyor belt 37a, and the like. .
The packaging and ironing apparatus 100 serves as a packaged article moving means of the present invention, is incorporated in the end seal unit 40, and includes an upper ironing section 110 and a lower ironing section 120 (details will be described later).

[Operation of horizontal pillow packaging machine 1]
The operation of the horizontal pillow packaging machine 1 will be described.
In the packaging material (packaging material) supply unit 10, a continuous film Fi is fed out from a winding packaging material M2 attached to a winding packaging material supply device or the like, and the continuous film Fi is guided by a guide roller 11 to be a pressing roller. 12 and the feed roller 13, the feed roller 13 is rotated by the feed roller servo motor 14, whereby the continuous film Fi is fed out by a fixed length, and is fed via the guide roller 15 to the cylinder 23. Will be guided to.
In the packaged product filling unit 20, the packaged product 4 supplied from the packaged product supply device is placed on the conveyor belt 21a of the supply conveyor 21, and the drive roller 21c is rotated by the drive roller servomotor 22 to rotate the conveyor belt. 21a moves, whereby the article to be packaged 4 is carried to the cylinder-making device 23.
On the other hand, the continuous film Fi guided to the tube making device 23 is formed into a tubular shape by the tube making device 23 and becomes a tubular continuous film TFi.
Then, the article to be packaged 4 transported to the tube making device 23 is filled in the tubular continuous film TFi.
In the film pulling / center seal / basis unit 30, first, the overlapped ends of the tubular continuous film TFi are sandwiched between the paper pulling rollers 31a and 31b, and the film pulling roller 31a is moved by the paper pulling roller servo motor 32. After rotation, the tubular continuous film TFi is fed out by a fixed length and guided to the center seal blocks 33a and 33b.
Next, the center seal blocks 33a and 33b are opened and closed by the opening / closing device 34, and the overlapped ends of the tubular continuous films TFi are sandwiched between the center seal blocks 33a and 33b. And a center seal portion is formed.
Thereafter, the center seal portion of the cylindrical continuous film TFi is sandwiched between the weight rollers 35a and 35b, and the weight roller 35a is rotated by the weight roller servo motor 36, and the center seal portion of the cylindrical continuous film TFi is weighted. Is done.
The tubular continuous film TFi with the center seal portion weighted in this way is placed on the conveyor belt 37a of the intermediate conveyor 37, and the drive roller 37b is rotated by the drive roller servo motor 38 to move the conveyor belt 37a. Then, the cylindrical continuous film TFi is carried to the end seal unit 40.
In the end seal unit 40, after the cylindrical continuous film TFi provided with the center seal is squeezed by the upper and lower ironing portions 110 and 120 of the packaging and ironing device 100, the cylindrical continuous film TFi is The scraped portion is sandwiched between the upper heater block 41 and the lower heater block 42, and is subjected to end sealing and cutting to generate the package 2, and the generated package 2 is supplied to the package discharge unit 50. (Details will be described later).
In the package discharge unit 50, the package 2 is placed on the conveyor belt 51a of the discharge conveyor 51, the drive roller 51b is rotated by the drive roller servomotor 52, the conveyor belt 51a moves, and the package 2 is discharged. You.

2A and 2B are views showing a package 2 manufactured by the horizontal pillow packaging machine 1, wherein FIG. 2A is a perspective view of the package 2, and FIG. 2B is AA of FIG. It is sectional drawing, 3a, 3b is an end seal part, and 3c is a center seal part in the figure.
In the package 2, as shown in FIG. 2, end seal portions 3a and 3b are formed at both ends in the left-right direction of the cylindrical film 3, and a center seal portion 3c is formed at the center in the front-rear direction of the cylindrical film 3. Is formed, and the article to be packaged 4 is sealed in the tubular film 3.
Further, in the present embodiment, the horizontal pillow packaging machine 1 is of an intermittent transport type for intermittently transporting the continuous film Fi, the tubular continuous film TFi, and the like. In the horizontal pillow packaging machine 1 of the continuous transport type, the feed roller 13, the drive roller 21c, the film pulling roller 31a, the basis weight roller 35a, the drive roller 37b, the drive roller 51b, etc. are continuously rotated. , The continuous film Fi, the tubular continuous film TFi, and the article to be packaged 4 are continuously conveyed at a constant speed, and the end seal unit 40 and the packaging and ironing device 100 sandwich the tubular continuous film TFi during the end sealing. With this, it moves from upstream to downstream.

[Configuration of End Seal Unit 40]
The outline of the entire configuration of the end seal unit 40 of the horizontal pillow packaging machine 1 will be described.
FIG. 3 is a perspective view showing a schematic configuration of the end seal unit 40, FIG. 4 is a left side view of the end seal unit 40, and FIG. 5 is a front view of a rotating mechanism of the opening / closing toggle mechanism.
In the figure, 41 is an upper heater block, 42 is a lower heater block, 41a and 42a are central grooves, 41b is an upper heater block holder, 42b is a lower heater block holder, 41c is a guide hole, 43 is an opening / closing toggle mechanism, 43a Is a rotating shaft, 43b is a rotating plate, 43c and 43d are driven arms, 43e and 43f are holding members, 44 is a heater motor for opening and closing a heater block, 44a is a speed reducer, 45 is a holder drive block, 46a and 46b are support blocks, 46c and 46d are connection plates, 47a and 47b are connection rods, 48 is a cutting device, 48a is a support plate, 48b is an air cylinder, 48c is a piston rod, 48d is a slider, 48e and 48f are guide rods, and 49 is a cutting knife. , 100 is a packaging material ironing device, 110 is an upper ironing portion, 120 is a lower ironing portion, 131 132 guide plate 140 is an upper locking portion 150 is a lower lock portion.
In the end seal unit 40, the upper heater block 41 in which a heater (not shown) is embedded and the lower heater block 42 are provided with central grooves 41a and 42a, and the upper heater block 41 is a lower surface of the upper heater block holder 41b. The upper heater block holder 41b is provided with a guide hole 41c, the lower heater block 42 is mounted on the upper surface side of the lower heater block holder 42b, and is held on the lower surface side of the lower heater block holder 42b. The member 43e is attached.
The upper heater block holder 41b is connected to the holder drive block 45 by connecting rods 47a and 47b, and the lower heater block holder 42b is connected to the holder drive block 45 via the opening / closing toggle mechanism 43 and the connecting rods 47a and 47b. 47b, the connecting rods 47a, 47b are slidably supported by supporting blocks 46a, 46b, and the supporting blocks 46a, 46b are connected by connecting plates 46c, 46d. The holding member 43f is attached to the upper surface side.
In the opening / closing toggle mechanism 43, a rotating plate 43b is attached to a rotating shaft 43a, one ends of driven arms 43c and 43d are rotatably attached to both ends of the rotating arm 43b, and the other end of the driven arm 43c is attached to a holding member 43e. The other end of the driven arm 43d is rotatably attached to a holding member 43f, and the rotating shaft 43a is connected to a heater block opening / closing servomotor 44 via a speed reducer 44a.
The cutting device 48 is slidably supported by the support plate 48a, an air cylinder 48b mounted on the upper surface side of the support plate 48a, guide rods 48e, 48f mounted on the lower surface side of the support plate 48a, and the guide rods 48e, 48f. And a cutting knife 49 attached to the slider 48d.
The tip of the piston rod 48c of the air cylinder 48b is attached to the slider 48d, and the tip of the guide rods 48e and 48f is attached to the inner surface of the guide hole 41c of the upper heater block holder 41b.
Further, between the upper heater block holder 41b and the lower heater block holder 42b, an upper ironing portion 110, a lower ironing portion 120, guide plates 131 and 132, an upper lock portion 140, a lower lock portion 150 and the like are constituted. A packaging material ironing apparatus 100 is disposed (details will be described later).

[Operation of End Seal Unit 40]
In the end seal unit 40, when the rotating shaft 43a of the opening / closing toggle mechanism 43 is rotated by the heater block opening / closing servomotor 44 to rotate the rotating plate 43b, the lower heater block holder 42b is connected to the connecting rod 47a via the driven arm 43c. , 47b. At the same time, the holder drive block 44 moves via the driven arm 43d, the connecting rods 47a, 47b move along the support blocks 46a, 46b, and the upper heater block holder 41b moves in the opposite direction to the lower heater block holder 42b. Move to
Thus, the opening / closing operation (separation operation) of the upper heater block 41 and the lower heater block 42 is performed.
In the cutting device 48, by operating the air cylinder 48b, the slider 48d moves inside the guide hole 41c of the upper heater block holder 41b along the guide rods 48e and 48f via the piston rod 48c. The cutting knife 49 attached to the slider 48d moves.
When the upper heater block 41 and the lower heater block 42 are closed, an end seal is applied to the tubular continuous film TFi on which the center seal portion 3c is formed to form end seal portions 3a and 3b. At the same time, the air cylinder 48b of the cutting device 48 is operated, so that the cutting knife 49 jumps out of the central groove 41a of the upper heater block 41 and enters the central groove 42b of the lower heater block 42, and the end seal portion 3a and the end The package 2 is produced by cutting the boundary of the seal portion 3b.
The end seal unit 40 has been described for the case where the horizontal pillow packaging machine 1 is an intermittent transport type. However, when the horizontal pillow packaging machine 1 is a continuous transport type, the end seal unit 40 includes support blocks 46a and 46b. Is reciprocated in the transport direction of the tubular continuous film TFi or the like, whereby a moving mechanism for reciprocating the entire end seal unit 40 in the same direction is provided. The upper heater block 41 and the lower heater block 42 are closed and the While the end seal is applied to the continuous film TFi, the end seal / cut unit 40 moves together with the tubular continuous film TFi, and while the upper heater block 41 and the lower heater block 42 are open, the end seal / cut unit is opened. 40 moves in the direction opposite to the cylindrical continuous film TFi and returns to the original position. .

[Configuration of packaging ironing device 100]
Next, the configuration of the packaging material ironing apparatus 100 serving as the packaged article moving means of the present invention will be described.
FIG. 6 is a perspective view showing a state where the packaging material ironing device 100 is disposed between the upper heater block holder 41b and the lower heater block holder 42b. FIG. 7 is a front view of the packaging material ironing device 100 shown in FIG. 8 is a rear view of the packaging and ironing apparatus 100 shown in FIG. 6, FIG. 9 is a left side view of the packaging and ironing apparatus 100 shown in FIG. 6, and FIG. 10 is a packaging and ironing apparatus shown in FIG. It is a right view of apparatus 100 grade.
In the drawing, 100 is a packaging material ironing device, 110 is an upper ironing portion, 111a and 111b are upper ironing rods, 112a, 112b, 113a and 113b are upper opening / closing plates, 114a and 114b are upper support shafts, and 115a and 115b are upper telescopic members. Posts, 116a and 116b are upper compression coil springs, 117a and 117b are upper guide rollers, 118a and 118b are upper stoppers, 119a and 119b are upper tension coil springs, 120 is a lower ironing portion, 121a and 121b are lower iron rods, 122a. , 122b, 123a, 123b are lower open / close plates, 124a, 124b are lower support shafts, 125a, 125b are lower telescopic columns, 126a, 126b are lower compression coil springs, 127a, 127b are lower guide rollers, 1278a, 128b is a lower stopper, 129a 129b is a lower extension coil spring, 131 and 132 are guide plates, 131a, 131b, 132a and 132b are recessed portions, 140 is an upper locking portion, 150 is a lower locking portion, 141 and 151 are boxes, and 142 and 152 are telescopic rods. , 143a, 143b, 153a, 153b are guide rods, 144, 154 are blocks, 145, 155 are connection rods, 146, 156 are lock plates, 146a, 146b, 156a, 156b are notches.

As shown in FIGS. 6 to 10, the packaging material ironing device 100 includes an upper ironing part 110, a lower ironing part 120, guide plates 131 and 132, an upper lock part 140, and a lower lock part 150.
The upper ironing part 110 includes upper ironing rods 111a, 111b, upper opening / closing plates 112a, 112b, 113a, 113b, upper support shafts 114a, 114b, upper telescopic struts 115a, 115b, upper compression coil springs 116a, 116b, upper guide roller 117a, 117b, upper stoppers 118a and 118b, upper tension coil springs 119a and 119b, and the like.
The upper ironing rods 111a and 111b serve as a pair of upper rod-shaped members in the present invention, one end of which is attached to the lower end of the upper opening / closing plates 112a and 112b on the back side, and the other upper end opening / closing on the front side. It is attached to the lower end of the plates 113a, 113b. These upper opening / closing plates 112a, 112b, 113a, 113b serve as upper supporting members in the present invention.
The upper portions of the upper side opening / closing plates 112a and 112b on the rear side are rotatably attached to one end of an upper support shaft 114a, and the other end of the upper support shaft 114a is fixed to an upper telescopic column 115a. Between the block 41 and the connecting rod 47a, on the lower surface side of the upper heater block holder 41b, it is attached so as to be able to expand and contract via an upper compression coil spring 116a.
Similarly, the upper portions of the upper opening / closing plates 113a and 113b on the front side are rotatably attached to one end of the upper support shaft 114b, and the other end of the upper support shaft 114b is fixed to the upper telescopic support 115b. , Between the upper heater block 41 and the connecting rod 47b and on the lower surface side of the upper heater block holder 41b via an upper compression coil spring 116b so as to be extendable and contractible.
Further, upper guide rollers 117a, 117b protruding to the rear side are attached to the rear upper side opening / closing plates 112a, 112b (see FIGS. 8 to 10), and front upper side opening / closing plates 113a, 113b are attached to the front side upper side opening / closing plates 113a, 113b. Upper stoppers 118a and 118b made of pins or bolts projecting to the side are attached. Among them, the upper guide rollers 117a and 117b serve as upper bar-shaped member guide rollers in the present invention.
Further, the upper opening / closing plates 112a and 112b on the rear side are connected with an upper extension coil spring 119a being bridged therebetween, and the upper opening / closing plates 113a and 113b on the front side are connected with an upper extension coil spring 119b being bridged.
Thereby, the upper opening / closing plates 112a, 112b and the upper opening / closing plates 113a, 113b are urged in the direction of closing with the upper support shafts 114a, 114b as the rotation axes, so that the upper ironing rods 111a, 111b move in the directions approaching each other. The upper tension coil springs 119a and 119b serve as the upper rod-shaped member urging means in the present invention.

The lower ironing portion 120 has the same configuration as the upper ironing portion 110, and includes lower ironing rods 121a, 121b, lower opening / closing plates 122a, 122b, 123a, 123b, lower support shafts 124a, 124b, and lower telescopic columns 125a. , 125b, lower compression coil springs 126a, 126b, lower guide rollers 127a, 1267b, lower stoppers 128a, 128b, lower tension coil springs 129a, 129b, and the like.
The lower ironing rods 121a and 121b serve as a pair of lower rod members in the present invention, one end of which is attached to the upper end of the lower opening / closing plates 122a and 122b on the back side, and the other end is connected to the front side. It is attached to the upper ends of the lower opening / closing plates 123a, 123b. These lower opening / closing plates 122a, 122b, 123a, 123b serve as lower supporting members in the present invention.
The lower portions of the lower opening / closing plates 122a and 122b on the rear side are rotatably attached to one end of a lower support shaft 124a, and the other end of the lower support shaft 124a is fixed to a lower telescopic support 125a. 125a is mounted between the lower heater block 42 and the connecting rod 47a and on the upper surface side of the lower heater block holder 42b via a lower compression coil spring 126a so as to be able to expand and contract.
Similarly, the lower portions of the lower opening / closing plates 123a and 123b on the front side are rotatably attached to one end of a lower support shaft 124b, and the other end of the lower support shaft 124b is fixed to a lower telescopic support 125b. The side telescopic strut 125b is telescopically attached between the lower heater block 42 and the connecting rod 47b and on the upper surface side of the lower heater block holder 42b via a lower compression coil spring 1126a.
Further, lower guide rollers 127a, 127b projecting to the front side are attached to the lower opening / closing plates 123a, 123b on the front side, and pins projecting to the rear side are attached to the lower opening / closing plates 122a, 122b on the rear side. Alternatively, lower stoppers 128a and 128b made of bolts or the like are attached (see FIGS. 8 to 10). Among these, the lower guide rollers 127a and 127b serve as the lower bar-shaped member guide rollers in the present invention.
Further, the lower opening / closing plates 122a and 122b on the back side are connected by being bridged by a lower extension coil spring 129a, and the lower opening / closing plates 123a and 123b on the front side are joined by being extended by a lower extension coil spring 129b. Have been.
As a result, the lower opening / closing plates 122a, 122b and the lower opening / closing plates 123a, 123b are urged in the closing direction with the lower support shafts 124a, 124b as rotation axes, so that the lower ironing rods 121a, 121b are The lower tension coil springs 129a and 129b are urged in directions approaching each other, and serve as lower rod-shaped member urging means in the present invention.

The guide plate 131 serves as an upper bar-shaped member guide plate in the present invention, and is disposed between the lower opening / closing plates 122a and 122b and the connecting rod 47a. The guide plate 131 has concave portions 131a and 131b provided on the upper surface thereof. (See FIG. 7), the lower surface of the guide plate 131 is fixed to the upper surface of the lower heater block holder 42b.
The guide plate 132 serves as a lower rod-shaped member guide plate in the present invention, and is disposed between the upper opening / closing plates 113a and 113b and the connecting rod 47b. On the lower surface of the guide plate 132, recesses 132a and 132b are provided. Provided (see FIG. 8), the upper surface of the guide plate 132 is fixed to the lower surface of the upper heater block holder 41b.

The upper lock portion 140 includes a box 141, a telescopic rod 142, guide rods 143a and 143b, a block 144, a connecting rod 145, a lock plate 146, and the like.
The box 141 has a built-in air cylinder (not shown) and the like, and the left side thereof is attached to the front right side of the upper heater block holder 41b.
The telescopic rod 142 is composed of a piston rod of an air cylinder incorporated in the box 141 or a rod connected to the piston rod of the air cylinder, and the distal end is attached to the center of the upper surface of the block 144.
The guide rods 143a and 143b are slidably attached to a guide portion (not shown) in the box 141, and the distal end thereof is attached to the upper surface of the block 144.
One end of a connecting rod 145 is attached to the front left side of the block 144, and the other end of the connecting rod 145 is attached to the right side of the lock plate 146.
The upper surface of the lock plate 146 is provided with cutouts 146a and 146b whose cross sections are cut out in a semicircular shape. The cutouts 146a and 146b are mounted on the upper open / close plates 113a and 113b. The stoppers 118a and 118b are fitted.
As a result, the air cylinder in the box 141 is actuated and the telescopic rod 142 expands and contracts in the vertical direction, so that the block 144 and the lock plate 146 move in the vertical direction, and the notches 146a and 146b move the upper stoppers 118a and 118b. The upper opening / closing plates 113a and 113b are opened and closed to prevent the upper ironing rods 111a and 111b from moving, the upper ironing portion 110 is locked, and the notches 146a and 146b and the upper stoppers 118a and 118b are fitted. Is disengaged and the upper ironing portion 110 is unlocked.

The lower lock section 150 has the same configuration as the upper lock section 140, and includes a box 151, a telescopic rod 152, guide rods 153a and 153b, a block 154, a connecting rod 155, a lock plate 156, and the like.
The box 151 contains an air cylinder (not shown) and the like similarly to the box 141, and the right side thereof is attached to the rear left side of the lower heater block holder 42b.
The telescopic rod 152 includes a piston rod of an air cylinder incorporated in the box 151, a rod connected to the piston rod of the air cylinder, or the like, and a distal end portion thereof is attached to a lower surface central portion of the block 154.
The guide rods 153a and 153b are slidably attached to a guide portion (not shown) in the box 151, and the distal ends thereof are attached to the lower surface of the block 154.
One end of a connecting rod 155 is attached to the right side of the rear part of the block 154, and the other end of the connecting rod 155 is attached to the left side of the lock plate 156.
The lower surface of the lock plate 156 is provided with notches 156a and 156b having a semicircular cross section, and the notches 156a and 156b are attached to the lower opening / closing plates 122a and 122b. The lower stoppers 128a and 128b are fitted.
As a result, the air cylinder in the box 151 is actuated and the telescopic rod 152 expands and contracts in the vertical direction, so that the block 154 and the lock plate 156 move in the vertical direction, and the notches 156a and 156b move the lower stopper 128a, 128b, the lower opening / closing plates 122a, 122b are opened and closed to prevent the lower ironing rods 121a, 121b from moving, the lower ironing part 120 is locked, and the notches 156a, 156b and the lower ironing part 120 are locked. The engagement of the side stoppers 128a and 128b is released, and the lock of the lower ironing portion 120 is released.

[Operation of packaging ironing device 100]
11 to 14 illustrate the operation of the packaging and ironing apparatus 100. FIG. 11 shows a state before the packaging and ironing apparatus 100 starts operating, and FIG. FIG. 13 shows a state in which the ironing operation of the cylindrical packaging material TFi has started, FIG. 13 shows a state in which the ironing operation of the cylindrical packaging material TFi by the packaging material ironing device 100 has been completed, and FIG. The drawing shows a state in which the end seal is applied. In the drawing, P0 is a cutting position of the tubular continuous film TFi to which the end seal is applied.
Each drawing shows a front view in a state where the packaging material ironing device 100 is arranged between the upper heater block holder 41b and the lower heater block holder 42b. In the drawings, the upper ironing portion 110 includes upper ironing rods 111a and 111b. , Upper open / close plates 112a (113a), 112b (113b), upper support shaft 114a (114b), upper guide rollers 117a, 117b only, and lower ironing section 120 includes lower iron rods 121a, 121b, lower open / close. Only the plates 122a (123a), 122b (123b), the lower support shaft 124a (124b), and the lower guide rollers 127a, 127b are shown, and the upper ironing rods 111a, 111b, the upper guide rollers 117a, 117b, and the lower ironing rod 121a. , 121b, lower guide rollers 127a, 127b and guide plate 131 132 expressed by the solid line, the other is represented by the dashed line, the tubular packaging material TFi are represented by two-dot chain line.
Further, (a) and (b) of each drawing show the same state, and (a) shows the lower opening / closing plates 122a (123a) and 122b (123b) of the lower ironing portion 120 and the lower support shaft 124a (124b ) And the guide plate 132 are omitted, and in (b), the upper opening / closing plates 112a (113a) and 112b (113b) of the upper ironing unit 110, the upper support shaft 114a (114b) and the guide plate 131 are omitted.
Hereinafter, operation | movement of the packaging material ironing apparatus 100 is demonstrated.

Before the operation of the packaging material ironing apparatus 100, as shown in FIG. 11A, the upper ironing part 110, the upper heater block 41, and the upper heater block holder 41b are positioned above the tubular packaging material TFi. Then, as shown in FIG. 3B, the lower ironing portion 120, the lower heater block 42, and the lower heater block holder 42b are located below the tubular packaging material TFi.
At this time, since the upper extension coil spring 119a (119b) is bridged between the upper opening / closing plates 112a (113a) and 112b (113b), both upper opening / closing plates are in a closed state, and the lower opening / closing plate 122a is closed. Since the lower extension coil spring 129a (129b) is bridged between (123a) and 122b (123b), both lower opening / closing plates are in a closed state.
Therefore, the upper ironing rod 111a and the upper ironing rod 111b are close to each other, the lower ironing rod 121a and the lower ironing rod are close to each other, and the upper ironing rod 111a and the lower ironing rod 121a are located upstream of the cutting position P0 (see FIG. , The upper ironing rod 111b and the lower ironing rod 121b are located downstream (right side in the figure) from the cutting position P0.
First, an opening / closing operation (separation operation) of the upper heater block 41 and the lower heater block 42 is performed.
That is, in the end seal unit 40, when the rotating shaft 43a of the opening / closing toggle mechanism 43 is rotated by the heater block opening / closing servomotor 44 to rotate the rotating plate 43b, the lower heater block holder 42b is connected via the driven arm 43c. At the same time, the holder drive block 44 moves via the driven arm 43d to move the connecting rods 47a and 47b along the support blocks 46a and 46b, and the upper heater block holder 41b moves. Is lowered, and the lower heater block holder 42b is raised.
Accordingly, the upper heater block 41, the upper ironing portion 110, and the guide plate 132 move down together with the upper heater block holder 41b, and the lower heater block 42, the lower ironing portion 120, and the guide plate 131 move to the lower heater block holder 42b. The upper ironing rods 111a and 111b and the lower ironing rods 121a and 121b approach each other while crushing the tubular packaging material TFi.
As described above, the opening / closing toggle mechanism 43, the heater block opening / closing servomotor 44, the connecting rods 47a, 47b, and the like are means for raising and lowering the upper ironing rods 111a, 111b and the lower ironing rods 121a, 121b. It is what becomes.

Then, when the upper ironing part 110 and the lower ironing part 120 approach each other to a position where the upper ironing rods 111a and 111b and the lower ironing rods 121a and 121b press against each other with the tubular packaging material TFi therebetween, FIG. As shown in FIG. 12B, the upper guide rollers 117a and 117b abut against the concave portions 131a and 131b of the guide plate 131, and the lower guide rollers 127a and 127b abut against the concave portions 132a and 132b of the guide plate 132, as shown in FIG. Touch
At this time, the upper opening / closing plates 112a (113a) and 112b (113b) to which the upper guide rollers 117a and 117b are attached are attached to the upper telescopic support 115a (115b) via the upper support shaft 114a (114b). Since the telescopic struts 115a (115b) can be extended and contracted by the upper compression coil springs 116a (116b), the upper ironing rods 111a, 111b and the lower ironing rods 121a, 121b are compressed by the upper compression coil springs 116a (116b). They will push each other.
In this state, the upper heater block holder 41b continues to descend, the upper ironing portion 110 continues to descend, and the upper guide rollers 117a, 117b move in the left-right direction while contacting the concave portions 131a, 131b of the ascending guide plate 131. Accordingly, the upper opening / closing plates 112a (113a) and 112b (113b) rotate around the upper support shaft 114a (114b) while pulling the upper extension coil spring 119a (119b) to open, and the upper ironing rod 111a and the upper The ironing rod 111b moves in a direction away from the ironing rod 111b.
In this case, as shown in FIG. 13A, the upper ironing rods 111a and 111b move until the upper guide rollers 117a and 117b reach the left and right ends of the recesses 131a and 131b. The rods 111a and 111b move to positions deviated from the upper heater block 41 in the left-right direction.
Further, the lower heater block 42 keeps rising, the lower ironing part 120 keeps rising, and the lower guide rollers 127a, 127b move in the left-right direction while contacting the recesses 132a, 132b of the rising guide plate 132. Accordingly, the lower opening / closing plates 122a (123a) and 122b (123b) rotate around the lower support shaft 124a (124b) while pulling the lower extension coil spring 129a (129b), and open. The ironing rod 121a and the lower ironing rod 121b move in a direction in which they are separated from each other.
In this case, as shown in FIG. 13B, the lower ironing rods 121a and 121b move until the lower guide rollers 127a and 127b reach the left and right ends of the recesses 132a and 132b. The lower ironing rods 121a and 121b move to a position deviated from the lower heater block 42 in the left-right direction.
As described above, the upper ironing rod 111a and the lower ironing rod 121a move in the upstream direction (left direction) across the tubular packaging material TFi to a position where they are separated from the upper heater block 41 and the lower heater block 42. The rod 111b and the lower ironing rod 121b move downstream (to the right) across the cylindrical packaging material TFi to a position where they are separated from the upper heater block 41 and the lower heater block 42.
As a result, the tubular packaging material TFi is squeezed in the left-right direction around the cutting position P0, and the packaged product 4 at the position (end seal position) between the upper heater block 41 and the lower heater block 42 is subjected to the end seal. The lateral wrinkles that move to the non-end seal position deviating from the position and enter the portion (end sealed portion) between the upper heater block 41 and the lower heater block 42 are removed.

Thereafter, the upper heater block holder 41b continues to descend, the upper heater block 41 and the guide plate 132 continue to descend, and the lower heater block holder 42b continues to ascend, and the lower heater block 42 and the guide plate 131 continue to ascend. .
On the other hand, in the upper ironing portion 110, the upper guide rollers 117a and 117b are opened in the left-right direction while the upper opening / closing plates 112a (113a) and 112b (113b) are opened in the left-right direction. Since it is in contact with the end, the upper guide rollers 117a and 117b are lifted by the rising guide plate 131, the upper ironing portion 110 is raised, and the upper ironing rods 111a and 111b are also raised.
In this case, as shown in FIG. 14A, the upper ironing portion 110 including the upper ironing rods 111a and 111b rises until the upper heater block 41 and the lower heater block 42 press against each other with the tubular packaging material TFi therebetween. I do.
In the lower ironing portion 120, the lower guide rollers 127a and 127b are provided with the concave portions 132a and 132b of the guide plate 132 while the lower opening and closing plates 122a (123a) and 122b (123b) are opened in the left-right direction. The upper guide rollers 127a and 127b are pushed down by the descending guide plate 132, the lower ironing portion 120 is lowered, and the lower ironing rods 121a and 121b are also lowered.
In this case, as shown in FIG. 14B, in the lower ironing portion 120 including the lower ironing rods 121a and 121b, the upper heater block 41 and the lower heater block 42 press against each other with the tubular packaging material TFi interposed therebetween. Descend to
Then, in a state where the upper heater block 41 and the lower heater block 42 are pressed against each other with the tubular packaging material TFi sandwiched therebetween, the tubular packaging material TFi is end-sealed, and the tubular packaging material TFi is cut at the cutting position P0. Is done.
Thereafter, the upper heater block holder 41b is raised, the lower heater block holder 42b is lowered, and accordingly, the upper heater block 41, the upper ironing portion 110, and the guide plate 132 are raised together with the upper heater block holder 41b, The lower heater block 42, the lower ironing section 120, and the guide plate 131 are lowered together with the lower heater block holder 42b, and the state shown in FIG. 11 is reached, and the operation of the packaging ironing apparatus 100 ends.

[Operation of Upper Lock Unit 140 and Lower Lock Unit 150]
15 to 17 illustrate the operation of the upper locking portion 140 and the lower locking portion 150. FIG. 15 illustrates a state immediately after the end sealing and cutting of the tubular packaging material TFi are completed. 16 shows a state where the upper ironing part 110 and the lower ironing part 120 are locked, and FIG. 17 shows a state where the lock between the upper ironing part 110 and the lower ironing part 120 is released.
Each drawing shows a front view of a state in which the packaging material ironing device 100, the upper lock portion 140, and the lower lock portion 150 are attached to the upper heater block holder 41b and the lower heater block holder 42b. Reference numeral 110 denotes only the upper ironing rods 111a and 111b, the upper opening / closing plates 112a (113a) and 112b (113b), the upper support shaft 114a (114b), the upper stoppers 118a and 118b, and the upper tension coil springs 119a and 119b. The portion 120 includes only lower ironing rods 121a and 121b, lower opening / closing plates 122a (123a) and 122b (123b), lower support shafts 124a (124b), lower stoppers 128a and 128b, and lower tension coil springs 129a and 129b only. And the guide rod 143a of the upper locking portion 140 143b is omitted, and the guide rods 153a and 153b of the lower lock portion 150 are also omitted, the upper ironing rods 111a and 111b, the upper stoppers 118a and 118b, the upper tension coil springs 119a and 119b, the lower ironing rods 121a and 121b, and the lower side. The open / close plates 122a (123a), 122b (123b), the lower support shaft 124a (124b), the lower stopper 128a, the lower extension coil springs 129a, 129b, the upper lock 140, and the lower lock 150 are represented by solid lines. Others are indicated by dashed lines.
15 (a) and 15 (b) show the same state, FIG. 15 (a) omits the lower ironing portion 120 and the lower lock portion 150, and FIG. 15 (b) shows the upper ironing portion. 110 and the upper locking part 140 are omitted.
Hereinafter, the operation of the upper locking unit 140 and the lower locking unit 150 will be described.

Immediately after the upper heater block 41 and the lower heater block 42 sandwich the tubular packaging material TFi, end sealing is performed on the tubular packaging material TFi, and immediately after the tubular packaging material TFi is cut, FIG. As shown in the figure, the upper opening / closing plates 112a (113a) and 112b (113b) of the upper ironing portion 110 are open left and right, and the upper ironing rods 111a and 111b are located outside the upper heater block 41. In the upper lock portion 140, the telescopic rod 142 is in an extended state, and the lock plate 146 is located below the upper ironing portion 110.
Also, as shown in FIG. 15B, the lower opening / closing plates 122a (123a) and 122b (123b) of the lower ironing portion 120 are also open left and right, and the lower ironing rods 121a and 121b are moved downward. The telescopic rod 152 is located outside the lower heater block 150 with the telescopic rod 152 extended, and the lock plate 156 is positioned above the lower ironing unit 120.
At this time, in the upper ironing portion 110, the upper tension coil springs 119a and 119b are pulled in the left and right direction, but the upper guide rollers 117a and 117b abut against the left and right ends of the concave portions 131a and 131b of the guide plate 131. Therefore, the upper opening / closing plates 112a (113a) and 112b (113b) are kept open left and right.
In this state, before the upper heater block holder 41b is raised, the air cylinder in the box 141 is operated, the telescopic rod 142 is contracted, and the block 144 and the lock plate 146 are moved upward, and FIG. As shown in FIG. 7, the notches 146a and 146b of the lock plate 146 are fitted with the upper stoppers 118a and 118b attached to the upper opening and closing plates 113a and 113b.
As a result, the upper opening / closing plates 112a (113a) and 112b (113b) are closed by the return of the upper tension coil springs 119a and 119b, and the upper ironing rods 111a and 111b are prevented from moving in the direction approaching each other. Locked.
Locked.
Also, in the lower ironing portion 120, the lower tension coil springs 129a and 129b are pulled in the left and right direction, but the lower guide rollers 127a and 127b are connected to the left and right ends of the concave portions 132a and 132b of the guide plate 132. , The lower opening / closing plates 122a (123a) and 122b (123b) are kept open left and right.
In this state, before the lower heater block holder 42b descends, the air cylinder in the box 151 operates and the telescopic rod 152 contracts, and the block 154 and the lock plate 156 move upward, and FIG. As shown in (), the notches 156a and 156b of the lock plate 156 are fitted with the lower stoppers 128a and 128b attached to the lower opening and closing plates 123a and 123b.
As a result, the lower opening / closing plates 122a (123a) and 122b (123b) are closed by the return of the lower tension coil springs 129a and 129b, and the lower ironing rods 121a and 121b do not move in the direction approaching each other. The ironing unit 120 is locked.

Thereafter, as shown in FIG. 16B, the upper heater block holder 41b, the upper heater block 41, the upper ironing portion 110, and the upper lock portion 140 are raised to the standby position (the position shown in FIG. 11A). At the same time, the lower heater block holder 42b, the lower heater block 42, the lower ironing section 120, and the lower lock section 150 are lowered to the standby position (the position shown in FIG. 11B).
At this time, in the upper ironing portion 110, the upper guide rollers 117a and 117b do not come into contact with the concave portions 131a and 131b of the guide plate 131, but the upper ironing portion 110 is locked by the upper lock portion 140 as described above. Therefore, the upper ironing rods 111a and 111b do not move in the direction approaching each other, and the upper ironing rods 111a and 111b are prevented from contacting the upper heater block 41.
Also, in the lower ironing portion 120, the lower guide rollers 127a and 127b do not come into contact with the concave portions 132a and 132b of the guide plate 132, but as described above, the lower ironing portion 120 is Since it is locked, the lower ironing rods 121a and 112b do not move in the direction approaching each other, and the lower ironing rods 121a and 121b are prevented from contacting the lower heater block 42.
Finally, in the upper lock portion 140, the air cylinder in the box 141 is operated to extend the telescopic rod 142, the block 144 and the lock plate 146 are moved downward, and the upper compression coil spring 116a (116b) is used as the upper squeezing portion. After the 110 has moved downward to the standby position, the upper stoppers 118a, 118b and the cutouts 146a, 146b of the lock plate 146 are disengaged, and the upper extension coil springs 119a, 119b return to return to the upper opening / closing plate 112a (113a). , 112b (113b) are closed, and the upper ironing rods 111a, 111b move toward each other and return to the initial state as shown in FIG.
Also in the lower lock portion 150, the air cylinder in the box 151 operates to extend the telescopic rod 152, the block 154 and the lock plate 156 move upward, and the lower compression coil spring 126a (126b) lowers the ironing. After the portion 120 moves upward to the standby position, the lower stoppers 128a and 128b and the notches 156a and 156b of the lock plate 156 are disengaged from each other, and the lower extension coil springs 129a and 129b return to open the lower opening / closing plate. 122a (123a) and 122b (123b) are closed, and the lower ironing rods 121a and 121b move toward each other and return to the initial state as shown in FIG.

  The horizontal pillow packaging machine of the present invention, when performing end sealing and cutting with an end sealing device on a cylindrical packaging material to be packed and continuously conveyed with an article to be packaged, on both sides of the cutting position in the conveying direction upstream and downstream. In the above, even when the height of the packaged article is not high or the packaged article is difficult to slip with respect to the packaging material, poor sealing occurs, or the end seal portion of the package is bent upward and formed. A package that encapsulates a packaged product such as food or medicine can be reliably prevented from being caught in the packaged product without causing wrinkles in the end seal part in the direction perpendicular to the transport direction. Available to do.

DESCRIPTION OF SYMBOLS 1 Horizontal pillow packaging machine 2 Packaging body 3 Cylindrical film 3a, 3b End seal part 3c Center seal part 4 Packaged article 10 Packaging material (packing material) supply unit 11, 15 Guide roller 12 Holding roller 13 Feed roller 14 Feed roller Servo motor 20 Packing unit filling unit 21 Supply conveyor 21a Conveyor belt 21b Positioning attachment 21c Driving roller 22 Driving roller servo motor 23 Cylinder (former)
Reference Signs List 30 film pulling / center seal / basis unit 31a, 31b film pulling roller 32 film pulling roller servo motors 33a, 33b center seal block 34 opening / closing devices 35a, 35b weighting roller 36 weighting roller servomotor 37 intermediate conveyor 37a conveyor belt 37b drive Roller 38 Servo motor for drive roller 40 End seal unit 41 Upper heater block 42 Lower heater block 41a, 42a Central groove 41b Upper heater block holder 42b Lower heater block holder 41c Guide hole 43 Opening / closing toggle mechanism 43a Rotating shaft 43b Rotating plate 43c , 43d Followed arms 43e, 43f Holding member 44 Heater block opening / closing servomotor 44a Reducer 45 Holder drive blocks 46a, 46b Support block 4 c, 46d Connecting plates 47a, 47b Connecting rod 48 Cutting device 48a Support plate 48b Air cylinder 48c Piston rod 48d Slider 48e, 48f Guide rod 49 Cutting knife 50 Package discharge unit 51 Discharge conveyor 51a Conveyor belt 51b Drive roller 52 Drive roller Servo motor 100 Packaging and ironing device 110 Upper ironing parts 111a, 111b Upper ironing rods 112a, 112b, 113a, 113b Upper open / close plates 114a, 114b Upper support shafts 115a, 115b Upper telescopic struts 116a, 116b Upper compression coil springs 117a, 117b Upper Guide rollers 118a, 118b Upper stoppers 119a, 119b Upper tension coil springs 120 Lower ironing parts 121a, 121b Lower iron rods 122a, 122b, 1 23a, 123b Lower open / close plates 124a, 124b Lower support shafts 125a, 125b Lower telescopic struts 126a, 126b Lower compression coil springs 127a, 127b Lower guide rollers 1278a, 128b Lower stoppers 129a, 129b Lower tension coil spring 131, 132 Guide plates 131a, 131b, 132a, 132b Recess 140 Upper lock 150 Lower lock 141, 151 Box 142, 152 Telescopic rods 143a, 143b, 153a, 153b Guide rod 144, 154 Block 145, 155 Connection rod 146, 156 Lock plate 146a, 146b, 156a, 156b Notch portion MR Winding packaging material Fi Continuous film TFi Cylindrical continuous film P0 Cutting position

Claims (3)

Packaging material supply means for continuously supplying the packaging material,
A tubular packaging material forming means for molding the packaging material supplied by the packaging material supply means into a tubular packaging material,
Packed article filling means for conveying the packaged article at a constant interval and filling the tubular packaging material,
Center sealing means for applying a center seal to the overlapped end of the tubular packaging material filled with the article to be packaged along the transport direction,
End sealing means for cutting the end sealing and cutting by sandwiching the cylindrical packaging material subjected to the center sealing by the center sealing means from above and below with a heater block,
When the end sealing means performs end sealing, the packaged product at the end seal position among the packaged products filled in the tubular packaging material is moved to a non-end seal position deviated from the end seal position. A horizontal pillow packaging machine equipped with a packaged article moving means for moving,
The heater block includes an upper heater block disposed above the tubular packaging material and a lower heater block disposed below the tubular packaging material.
Between the upper heater block and the tubular packaging material, a pair of upper rod-shaped members arranged in the transport direction so as to face each other,
Between the lower heater block and the tubular packaging material, a pair of lower rod-shaped members arranged in the transport direction so as to face each other,
The pair of upper bar-shaped members and the pair of lower bar-shaped members are portions of the cylindrical packaging material that are end-sealed, and the pair of upper bar-shaped members sandwiching the upstream and downstream of the cutting position in the transport direction. Horizontal pillows provided with a rod-shaped member moving means for moving the rod-shaped members constituting the rod-shaped member in a direction to separate them from each other and moving the rod-shaped members constituting the pair of lower rod-shaped members in a direction to be separated from each other. Packaging machine. The rod-shaped member moving means,
Lifting means for raising and lowering the pair of upper rod members and the pair of lower rod members,
An upper rod-shaped member guide roller attached to an upper support member that supports the pair of upper rod-shaped members,
A lower rod-like member guide roller attached to a lower support member that supports the pair of lower rod-like members,
An upper rod-shaped member guide plate for contacting the upper rod-shaped member guide roller and guiding the movement of the rod-shaped members constituting the pair of upper rod-shaped members; and the pair of lower rod-shaped members for contacting the lower rod-shaped member guide roller. The horizontal pillow packaging machine according to claim 1, further comprising a lower rod-shaped member guide plate for guiding the movement of the rod-shaped member. The rod-shaped member moving means,
Upper rod-shaped member urging means for urging the pair of upper rod-shaped members to move in directions approaching each other,
An upper rod-like member locking means for temporarily preventing the pair of upper rod-like members from moving in a direction approaching each other by the upper rod-like member urging means when the pair of upper rod-like members move in a direction away from each other; When,
Lower rod-shaped member urging means for urging the pair of lower rod-shaped members to move in directions approaching each other,
When the pair of lower bar-shaped members move in a direction away from each other, the lower side temporarily hinders the pair of lower bar-shaped members from moving in a direction approaching each other by the lower bar-shaped member urging means. The horizontal pillow packaging machine according to claim 2, further comprising a rod-shaped member locking means.

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