JP5642955B2 - Pillow packaging machine - Google Patents

Description

  The present invention relates to a finger-type article transport and supply apparatus that feeds a packaged article that is easy to roll, such as a spherical shape, to a packaging machine, and a pillow packaging machine using the same.

  A pillow packaging machine, which is one form of a packaging machine, has the following configuration. First, the strip-shaped film wound up by the raw fabric roll is continuously supplied to the bag making device, and when the bag making device is passed, the tubular film formed into a tubular shape is formed. In addition, an article conveyance / supply device is arranged on the upstream side of the bag making device, and an article to be packaged conveyed at predetermined intervals from the article conveyance / supply device is supplied into the bag making device. Accordingly, when the article to be packaged passes through the bag making machine, the article to be packaged is stored at predetermined intervals in the cylindrical film, and the article to be packaged is conveyed together with the cylindrical film. A center seal device and an end seal device are arranged along the conveying direction. The center seal device seals the film polymerization end of the tubular film. The end seal device seals the tubular film in the lateral direction of travel (portion where the front and rear packages are not present) and cuts the portion of the tubular film in which the front package is stored. Is separated from the subsequent cylindrical film to produce a package.

  Since this type of article conveyance and supply apparatus conveys an article to be packaged at regular intervals and supplies it to a bag making machine of the packaging machine body, a finger conveyor apparatus is usually used. This finger conveyor device includes sprockets arranged at the front and rear, an endless chain spanned over the plurality of sprockets, and a plurality of push fingers attached to the endless chain at predetermined pitches. Thus, when the pushing finger hits the rear surface of the article, the article also moves forward with the movement of the pushing finger. An example of this type of apparatus is disclosed in Patent Document 1.

  Moreover, although it is not this kind of articles | goods conveyance supply apparatus, there exists a conveying apparatus disclosed by patent document 2 as a conveying apparatus for articles | goods in which dimensional shape dispersion | variation like a bag, for example. The conveying device disclosed in Patent Document 2 is configured such that a pair of belt conveyors provided in parallel are inclined inward to each other so that the conveying surfaces of these belt conveyors are V-shaped in cross section. Is. By adopting such a configuration, the article is supported and conveyed by the V-shaped conveyance surface, so that even if the dimensional shape varies, the article is centered and conveyed by its own weight.

JP 2001-354212 A JP-A-9-183503

  However, the above-described conventional technology has the following problems. When the article has a spherical shape, if a finger conveyor is used as in Patent Document 1, the fingers cannot be stably conveyed because the fingers are shifted from the center of the article or rolled forward when stopped. In addition, the article may be rubbed against the conveyance surface or the side guide and damaged during conveyance.

  On the other hand, when a conveyor device in which a belt conveyor is arranged in a V-shape as in Patent Document 2 is used, although centering can be performed, articles are easy to roll and slip with respect to the belt, and thus are supplied to the next process at a desired timing. I can't. Therefore, the conveying apparatus disclosed in Patent Document 2 is not suitable for an article conveying and supplying apparatus that supplies the bag making machine of the packaging machine body.

In order to solve the above-described problems, an article conveying and supplying apparatus used in a pillow packaging machine according to the present invention includes (1) a pair of belt conveyors arranged in parallel along the conveying direction, and the pair of belt conveyors. The belt conveyor has a V-shaped cross section with its conveying surface inclined inward, and the finger conveyor has a plurality of pushing fingers attached to an endless chain, Pushing fingers are formed so as to protrude upward from between the conveying surfaces of the pair of belt conveyors, and the moving speeds of the belt conveyor and the finger conveyor are made equal.

  Since the conveyance surface has a V-shaped cross section, the article can be conveyed while restricting the movement of the article to the left and right, so that the article can be stably supplied to the next process such as the packaging machine body. Furthermore, since the feeding finger and the belt speed are the same, the article does not rub against the belt and can be conveyed without damaging the article.

  (2) The endless chain may be provided with a stopper for restricting the forward movement of the article in front of the push finger. Even an article that easily rolls back and forth, such as a spherical shape, can be more stably transported because movement in the front-rear direction is restricted between the stopper and the pushing finger. Further, when the pushing finger and the stopper are integrated, the assembling work can be saved and the replacement can be easily performed. However, in this case, when the attachment having a monolithic structure is separated from the article, the attachment is retracted from the conveyance path in a manner that does not interfere with the subsequent article.

  (3) A round belt conveyor may be provided on the carry-out side of the belt conveyor, and the round belt conveyor may be a round belt extended from the belt conveyor to the carry-out side. In this way, even if the next-stage delivery site is a narrower space, the round belt conveyor can be inserted and arranged to the inside, and can be conveyed in a more stable posture until the end.

(4) A pillow wrapping machine according to the present invention is a pillow wrapping machine main body that wraps an article transport and supply device according to any one of the above (1) to (3) and an article that is carried out and supplied from the article transport and supply device. The pillow wrapping machine main body includes a bag making device that forms a continuously supplied belt-like film into a cylindrical shape, and the bag making device includes a pair of bent pieces protruding downward, Inserting both side edges of the belt-like film between a pair of folded pieces to overlap each other, the interval between the pair of folded pieces is wider than the width of the pushing fingers, and the pushing fingers are placed in the bag making machine. Configure to enter.

  (5) Moreover, the pillow packaging machine of the present invention includes the article transport and supply device according to the above (3) and a pillow packaging machine main body for packaging the articles carried out and supplied from the article transport and supply device, and the pillow packaging machine. The main body is provided with a bag making device for making a bag of continuously supplied belt-like film into a cylindrical shape, and the bag making device has an opening at the bottom, and the round belt conveyor and the finger conveyor from the opened portion. It is good to be able to enter the bag making machine.

  The pillow wrapping machine main body appropriately includes a device for sealing or cutting a predetermined portion of the tubular film on the downstream side of the bag making machine.

This onset bright, whether the shape and materials of the article can be conveyed in a stable posture.

It is a front view showing a preferred embodiment of the present invention. (A) is the top view (seen from diagonally above) of the 1st conveyance conveyor apparatus 11 of an upstream, (b) is the figure seen from the b direction of figure (a), (c) is a figure. It is the figure seen from the c direction of (a). (A) is a side view of the 1st conveyance conveyor apparatus 11, (b) is a figure which shows the finger conveyor 20. FIG. It is a figure explaining the process of supplying articles | goods to the 1st conveyance conveyor apparatus. (A) is a top view (seen from diagonally above) of the 2nd conveyance conveyor apparatus 12 of the downstream, (b) is the figure seen from the b direction of Fig. (A), (c) is a figure. It is the figure seen from the c direction of (a). It is a side view of the 2nd conveyance conveyor apparatus 12. FIG. It is a figure explaining the relationship between the 2nd conveyance conveyor apparatus 12 and the bag making machine. It is a figure explaining the relationship between the 2nd conveyance conveyor apparatus 12 and the bag making machine.

FIG. 1 shows a preferred embodiment of an article conveying and supplying apparatus used in the present invention. The article transport and supply device 10 of the present embodiment includes a first conveyor device 11 and a second conveyor device 12 that are sequentially arranged from the upstream side.

  As shown in FIG. 2 and FIG. 3 in an enlarged manner, the first conveyor device 11 is provided with a pair of left and right belt conveyors 13 and 13 arranged in parallel along the traveling direction of the article. That is, two strip-shaped attachment plates 14 are arranged in parallel along the traveling direction of the article, and the inner edge in the traveling direction of the article (the center side in the width direction of the first conveyor device 11) is upward. Inclined to lift. Thus, the two mounting plates 14 are arranged in a mountain shape and are separated so as to form a predetermined gap between the inner edges in the advancing direction that are close to each other.

  A free roller 15 is rotatably supported at the front and rear end positions of the surface of the mounting plate 14, and a driving roller 16 and two tension rollers 17 are supported at a lower position on the center side in the traveling direction. The drive roller 16 links the output shaft of the drive motor 18 disposed on the back side of the mounting plate 14 and is rotationally driven by receiving the rotational force of the drive motor 18. The tension roller 17 is supported by the mounting plate 14 with a bearing. The rotation axes of the rollers 15, 16, 17 are perpendicular to the mounting plate 14, and the endless belt 19 is stretched over the free roller 15, the tension roller 17, and the driving roller 16, so that the belt conveyor 13 Composed. The endless belt 19 has a predetermined tension and is driven to rotate as the driving roller 16 rotates. Further, since the endless belt 19 rotates and moves in a plane perpendicular to the mounting plate 14 that is inclined, the conveying surface 19a is also inclined in the plane. Therefore, the conveyance surfaces 19a of the two belt conveyors 13 are inclined inward to form a V-shaped cross section. That is, when viewed in the width direction orthogonal to the transport direction in the entire first transport conveyor device 11, the transport surface 19 a composed of the two endless belts 19 has both outer ends positioned on the uppermost side and directed toward the center. The center part gradually descends and the center part becomes the lowest position. A predetermined interval is provided between the inner edges of the two conveying surfaces 19a, and the two conveying surfaces 19a are open downward.

  In this way, since the pair of transport surfaces 19a are V-shaped, the article 1 to be transported may have both a spherical shape and the like (including shapes other than a true sphere such as an oval and an elliptical sphere). Supported from the side, lateral movement is restrained.

  On the other hand, a finger conveyor 20 is provided in a lower space of the mounting plate 14, and a pushing finger 21 of the finger conveyor 20 protrudes upward from a space formed between the conveying surfaces 19 a of the pair of endless belts 19. . That is, the finger conveyor 20 attaches a plurality of pushing fingers 21 to the endless chain 22 at a predetermined interval, and the pushing fingers 21 move forward as the endless chain 22 moves. Further, in the present embodiment, a stopper 23 that restricts the forward movement of the article 1 is attached in front of the attachment position of each push finger 21 of the endless chain 22.

  The stopper 23 is a bottom receiving portion 23a of the horizontal and flat article at the upper end surface in the conveyance direction, and an inclined portion 23b that gradually rises as the front portion of the upper end surface in the conveyance direction goes forward. And the inclined part 23b hits the front / lower part of the article 1 having a spherical shape or the like, and becomes a stopper part. In this embodiment, since the shape of the article 1 is oval and elongated compared to a true sphere, the horizontal and flat bottom receiving portion 23a is provided. In the case of a relatively short article, the bottom receiving portion 23a may not be provided.

  In the present embodiment, the stopper 23 is also set so that its upper end protrudes upward from the space formed between the conveying surfaces 19 a of the pair of endless belts 19, similarly to the pushing finger 21. As shown in FIG. 3B, since the bottom receiving portion 23a is in contact with the lower surface of the article 1, the bottom receiving portion 23a is also a space formed between the conveying surfaces 19a of the pair of endless belts 19. Projecting upward.

Furthermore, the conveying speed of the push finger 21 and the stopper 23 is equal to the conveying speed of the endless belt 19. As a result, even when the article 1 is coated with a material / material that is easily broken on the surface by, for example, food or confectionery, the conveyance surface 19a that contacts both sides of the article 1 and the rear end of the article 1 are in contact with each other. Since the pushing finger 21 to be moved moves at the same speed, the article 1 receives a forward conveying force from both, but there is no rubbing of the surface of the article 1 due to the speed difference, and the surface does not collapse. That is, for example, when the moving speed of the pushing finger is faster than the moving speed of the belt conveyor 13, the entire article or the surface of the article 1 is made of a fragile material. If the conveying surface 19a of the conveyor 13 is V-shaped, the weight of the article 1 is received, so that the conveying force from the belt conveyor 13 to the article 1 is also considerably large. Therefore, if the relative moving speed of the push finger 21 is increased in that state, the article 1 may move while rubbing the conveying surface 19a, which may cause the surface to collapse. Does not occur.
When the article is relatively hard or the surface is smooth, the speed of the push finger 21 may be increased.

  Moreover, this 1st conveyor apparatus 11 is also an area which supplies a to-be-packaged object between the pushing fingers 21. FIG. That is, as shown in FIG. 2, an article conveying device 2 such as a belt conveyor is disposed on the back side of the first conveyor device 11, and the articles 1 randomly flow on the article conveying device 2. In the present embodiment, since the articles are manually supplied to the first conveyor device 11, an operator M stands in front of the first conveyor device 11, as shown in FIG. Is taken up and supplied to a predetermined position on the first conveyor 11. At this time, the worker M moves the article 1 between the pushing finger 21 and the stopper 23. In this embodiment, since the moving speeds of the belt conveyor 13 and the finger conveyor 20 are the same, if the article is supplied to a position away from the front of the push finger 21, the push finger 21 cannot catch up, The article 1 is conveyed in the separated state. Then, although it will supply to the front of the pushing finger 21, since the upper end of the inclined part 23b of the stopper 23 is located in the front predetermined position (position corresponding to the length of the articles | goods 1) of the pushing finger 21, The worker M only has to supply the article between the push finger 21 and the inclined portion 23b, and the inclined portion 23b also serves as a guide for the supply position. Moreover, even if it supplies a little forward, it will guide to the inclination of the inclination part 23b, the article 1 will move back relatively, and will be supplied to an appropriate position.

  On the other hand, the second conveyor device 12 is provided with a pair of left and right belt conveyors 38 in parallel along the traveling direction of the article 1 as shown in an enlarged view in FIGS. The configuration of the belt conveyors 38 is basically the same as the configuration of the belt conveyor 13 of the first transport conveyor device 11.

  That is, two elongated strip-shaped mounting plates 24 are arranged in parallel along the traveling direction of the article, and the inner edge of the article in the traveling direction (the center side in the width direction of the second conveyor device 12) is upward. Inclined to lift. Thus, the two mounting plates 24 are arranged in a mountain shape and are separated so as to form a predetermined gap between the inner edges of the adjacent traveling directions.

  A free roller 25 is rotatably supported at the front and rear end positions of the outward surface of the mounting plate 24, and a driving roller 26 and two tension rollers 27 are supported at a lower position on the center side in the traveling direction. The drive roller 26 links the output shaft of a drive motor 28 disposed on the back side of the mounting plate 24 and is driven to rotate by receiving the rotational force of the drive motor 28. The tension roller 27 is supported by the mounting plate 24 with a bearing. The rotation axes of the rollers 25, 26, 27 are perpendicular to the mounting plate 24, and the endless belt 29 is stretched over the free roller 25, the tension roller 27, and the driving roller 26, so that the belt conveyor 23 Composed. The endless belt 29 has a predetermined tension and is driven to rotate as the driving roller 26 rotates. Further, since the endless belt 29 rotates and moves in a plane perpendicular to the inclined mounting plate 24, the conveying surface 29a is also tilted in the plane. Therefore, the conveyance surfaces 29a of the two belt conveyors 13 are inclined inward to form a V-shaped cross section. That is, when viewed in the width direction orthogonal to the transport direction in the entire second transport conveyor device 12, the transport surface 29a composed of the two endless belts 29 has both outer ends positioned at the uppermost position and directed toward the center. The center part gradually descends and the center part becomes the lowest position. A predetermined interval is provided between the inner edges of the two conveying surfaces 29a, and the two conveying surfaces 29a are open downward.

  In this way, since the pair of transport surfaces 19a are V-shaped, the article 1 to be transported may have both a spherical shape and the like (including shapes other than a true sphere such as an oval and an elliptical sphere). Supported from the side, lateral movement is restrained.

  In addition, the inclination angle of the transport surface 29a is the same as the transport surface 19a of the first transport conveyor device 11, and the left and right transport surfaces 19a and 29a are located on the same plane. That is, the transfer surface 29a of the second transfer conveyor device 12 is positioned on the extension line of the transfer surface 19a of the first transfer conveyor device 11, and the open portions formed between the pair of transfer surfaces also coincide. Thereby, the article 1 supported and transported by the both transport surfaces 19a of the first transport conveyor device 11 is smoothly transferred to the second transport conveyor device 12 as it is.

  Furthermore, the finger conveyor 20 provided in the 1st conveyance conveyor apparatus 11 is set so that it may extend as it is and may reach to the 2nd conveyance conveyor apparatus 12 side. That is, the pushing finger 21 and the stopper 23 of the finger conveyor 20 also protrude above the transport surface 29a of the second transport conveyor device 12, and the article 1 is continuously provided on the second transport conveyor device 12 side from the first transport conveyor device 11. Transport. Therefore, the article 1 receives the conveying force of the finger conveyor 20 and moves more smoothly from the first conveying conveyor device 11 to the second conveying conveyor device 12 side.

  A round belt conveyor 30 is provided on the carry-out side of the second conveyor device 12. Specifically, the drive pulley 31 is provided integrally with the drive roller 26 for the belt conveyor 38, and the tension pulley 33 is provided integrally with the downstream tension roller 27. Note that the drive roller 26 and the drive pulley 31 and the tension roller 27 and the tension pulley 33 may be formed separately, or may be formed coaxially or integrally. As is apparent from the figure, the pulleys 31 and 33 that link the round belt 35 are arranged on the mounting plate 24 side so that the pair of round belts 35 that are linked to the respective mounting plates 24 approach each other. .

  Further, near the upper end of the mounting plate 24, the free pulleys 32 and 34 are supported by bearings so as to be capable of rotating, respectively, above the drive pulley 31 and at the tip of the carry-out side. Then, the round belt 35 is stretched around the drive pulley 31, the tension pulley 33 and the free pulleys 32 and 34. As shown in FIG. 6, the round belt 35 is located at the lowest position (from the center) on the substantially same surface as the transport surface 29 a of the belt conveyor 38, and travels along the upper edge of the mounting plate 24. In the section which moves along the upper end edge (or on the extension line) of the mounting plate 24, it is possible to contact the article 1 and give a conveying force.

  As described above, since the drive pulley 31 is coaxially linked to the drive roller 26, the drive pulley 31 receives the rotational force of the drive motor 28 and rotates. Further, the outer diameter of the driving roller 26 and the outer diameter of the driving pulley 31 are matched (substantially matched). Thereby, the moving speed of the endless belt 29 of the belt conveyor 38 and the moving speed of the round belt 35 of the round belt conveyor 30 are matched. Furthermore, the carry-out side tip of the round belt conveyor 30 protrudes downstream (the carry-out side) from the carry-out side tip of the belt conveyor 38.

  The article transport and supply device 10 according to the present embodiment is used in a pillow packaging machine and supplies articles 1 to the pillow packaging machine body at predetermined intervals. Therefore, as shown in FIGS. 7 and 8, a bag making machine 40 of the pillow packaging machine body is disposed on the carry-out side of the article transport and supply device 10. As is well known, in the pillow packaging machine body, the belt-like film is formed. The bag is continuously supplied to the bag making machine 40 and is passed through the bag making machine 40 to form a bag. Then, the articles 1 are sequentially supplied from the article transport and supply apparatus 10 into the bag making device 40, more specifically, into the cylindrical film 41 formed into a cylindrical shape.

  In the present embodiment, the carry-out side end of the article transport and supply device 10 is inserted and arranged up to the inside of the bag making device 40. That is, as shown in FIG. 8A, the carry-in side of the bag making machine 40 is opened at the lower side, and the round belt 35 of the round belt conveyor 30 and the pushing finger 21 of the finger conveyor 20 are manufactured from within the opening 40a. It can be inserted into the bag 40. From this, as shown in FIG. 7, the pushing finger 21 arrangement | positioning stopper 23 of the finger conveyor 20, and the round belt conveyor 30 can enter into the bag making machine 40 in the state which supported the articles | goods 1, and are stable. Even if the article 1 is likely to be chipped, laterally displaced, or misaligned in the front-rear direction, it can be transported in the bag making machine 40 while maintaining a desired position and posture. In particular, since the round belt 35 is used, the area occupied by the belt can be narrowed, and there is no problem even if the belt is made to enter the bag making machine 40 as compared with a flat belt conveyor.

  Further, on the downstream side of the bag making device 40, a bent piece 40b is provided on the bottom surface so as to protrude downward. Then, both side edges of the tubular film 41 formed by forming the belt-like film into a cylindrical shape along the inner surface of the bag making device 40 protrude downward along the bent piece 40b and are overlapped with each other. The overlapped film polymerization end is sealed by a center seal device provided on the downstream side of the bag making device 40. Such a configuration is conventionally known.

  And in this embodiment, as shown in FIG.8 (b), a fixed clearance gap was provided between a pair of bending pieces 40b, and it was made possible to insert the pushing finger 21 and the stopper 23 in the clearance gap. Thereby, even if it will be in the state of the cylindrical film 41 made into the cylinder shape, the state which supported the article | item 1 with the pushing finger 21 and the stopper 23 in the inside of the bag making machine 40 whose film superposition | polymerization end is unsealed. Therefore, no positional deviation or the like occurs.

  In particular, in this type of pillow wrapping machine or the like, when an article is dropped on the article transport and supply device 10, it is possible to prevent the occurrence of an empty bag (an empty packaging body in which no article is stored). The operation of the main body may be paused and then restarted. Then, the tubular film also starts to move again after being temporarily stopped. At that time, in the case where the article 1 is easy to roll such as a spherical shape, there is a possibility that the position may be shifted back and forth due to inertial force. In the embodiment, since the push finger 21 and the stopper 23 are firmly supported, it is possible to suppress as much as possible the occurrence of displacement even during such temporary stop / re-operation.

Although not shown, the pillow wrapping machine main body has a center seal device for sealing the film polymerization end of the tubular film 41 on the downstream side of the bag making machine 40, and the tubular film 41 is sealed and cut in the lateral direction. An end seal device is also provided.
Furthermore, the apparatus of the next process which supplies the articles | goods with the article conveyance supply apparatus of this invention is not restricted to a pillow packaging machine main body, Various packaging machines, a conveyance apparatus, etc. may be sufficient.

DESCRIPTION OF SYMBOLS 10 Article conveyance supply apparatus 11 1st conveyance conveyor apparatus 12 2nd conveyance conveyor apparatus 20 Finger conveyor 21 Pushing finger 23 Stopper 30 Round belt conveyor 35 Round belt 38 Belt conveyor 40 Bag making machine 40a Opening part 40b Bending piece

Claims (3)

Comprising a goods article transport feeder, and a pillow packaging machine main body for wrapping an article to be conveyed supplied from the article transport feeder,
The article transport and supply device includes:
A pair of belt conveyors arranged in parallel along the conveying direction;
A finger conveyor disposed between the pair of belt conveyors;
With
The belt conveyor has a V-shaped cross section with its conveying surface inclined inward,
The finger conveyor is formed such that a plurality of pushing fingers are attached to the endless chain, and the pushing fingers protrude upward from between the conveying surfaces of the pair of belt conveyors,
The belt conveyor and the finger conveyor are equal in moving speed,
The pillow wrapping machine main body includes a bag making device that forms a continuous belt-like film into a cylindrical shape,
The bag making machine includes a pair of bent pieces protruding downward, and inserts both side edges of the belt-like film between the pair of bent pieces,
A pillow packaging machine characterized in that an interval between the pair of bent pieces is wider than a width of the push finger, and the push finger enters the bag making machine. The pillow packaging machine according to claim 1, wherein a stopper for restricting the forward movement of the article is attached to the endless chain in front of the push finger. On the carry-out side of the belt conveyor, a round belt conveyor is provided,
The pillow wrapping machine according to claim 1 or 2, wherein the round belt conveyor includes a round belt extended from each belt conveyor to the carry-out side.

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