JP2015085955A - Belt-wrapping packaging device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a belt-wrapping packaging device capable of wrapping a film piece properly on an article to adhere the film piece on the article stably.SOLUTION: A belt-wrapping packaging device comprises: an article transport device 1 for transporting an article w toward a packaging processing position P; a film piece carrier mechanism 5 for feeding a band-shaped film piece f while holding the two end portions of the film f by a pair of chuck mechanisms 35, obliquely downward, to feed and place the film piece f to and on the article w transported by the article transport device 1; a film piece pressing mechanism 6 for pressing down the two end side portions of the film piece f placed on the article w, along the two side faces of the article w; and a film piece adhering mechanism 7 for winding and adhering the two end side portions of the pressed-down film piece f to the bottom face of the article w.

Description

  The present invention relates to a belt-wrapping apparatus for winding a belt-shaped film piece around an article and sticking it.

  As the band wrapping apparatus, for example, as shown in FIGS. 12 to 17 of Patent Document 1, a strip-shaped film piece cut into a predetermined length is horizontally supported, and below the film piece. The conveyed article is lifted by a plurality of push-up pins and pressed against the film piece, and the upper surface of the article is wound around the elastic belt and is rotated in a state where the center of the film piece is pushed up by the upper surface of the article. A film piece is sandwiched between the two.

  Thereafter, the article is wound around one side surface and the lower surface of the article so as to push one end side of the film piece by the free roller while being transferred from the push-up pin to the free roller.

  Next, by rotating the elastic belt, the article is transferred from the free roller to the free roller on the other end of the film piece, and the other end of the film piece is pushed in by the free roller. A film is known that is wound around the other side surface and the lower surface of the film and bonded to both ends of the film piece.

Japanese Patent Laid-Open No. 2002-20006

  In the above-described conventional apparatus, the article is raised and the film piece is pushed up on the upper surface, and the film piece is wound around the side surface and the lower surface while the article is transferred, depending on the size such as the width and height of the article. Is difficult to lift or transfer the article in a stable state.

  The present invention has been made paying attention to such a situation, and provides a wrapping and packaging apparatus capable of accurately winding a film piece around an article without causing the article to rise, and stably attaching the film piece. For the purpose.

  In order to achieve the above object, the present invention is configured as follows.

(1) The band wrapping apparatus of the present invention is
An article conveying device for conveying an article toward a packaging processing position;
A film piece that grips both ends of a strip-shaped film piece with glued ends and conveys it obliquely downward, and supplies and places the film piece on the article conveyed by the article conveying device. A transport mechanism;
A film piece pressing mechanism that pushes down both end portions of the film piece placed on the article along both side surfaces at the packaging processing position;
And a film piece sticking mechanism for winding and sticking both ends of the pressed film piece around the bottom surface of the article.

  According to the banding and packaging apparatus of the present invention, the band-shaped film piece is conveyed and supplied onto the article to be packaged by gripping both ends thereof with the chuck mechanism, and then placed on the article at the packaging processing position. The both end portions of the film piece are pushed down along the both side surfaces of the article by the film piece pressing mechanism, and are wound and stuck on the bottom surface of the article by the film piece sticking mechanism. A film piece can be wound and stuck to a predetermined position of the held article without being surely moved.

  In addition, since the film piece transport mechanism transports the film piece gripped by the chuck mechanism obliquely downward, for example, compared to the case of performing two-stage transport in which the film piece is transported in the horizontal direction and then transported downward. In addition, the actual conveyance distance by the chuck mechanism is shorter than that in the case of two-stage conveyance, and accordingly, the conveyance time can be shortened, and as a result, the winding and packaging processing cycle can be shortened.

 (2) In a preferred embodiment of the present invention, the film piece conveyance mechanism conveys the chuck mechanism that holds the film piece along the linear movement trajectory toward the obliquely downward direction, and the article conveyance device The film piece is supplied and placed on the conveyed article.

  According to this embodiment, the film piece conveyance mechanism conveys the film piece along a linear movement trajectory obliquely downward, so that the chuck mechanism may be reciprocated in the linear direction, and the configuration is simplified. The film piece can be conveyed at high speed.

 (3) In another embodiment of the present invention, the film piece conveying mechanism conveys the chuck mechanism that grips the film piece along the arc-shaped movement trajectory obliquely downward, and the article conveying device. The film piece is supplied and placed on the article that has been conveyed by the above-described method.

  According to this embodiment, the chuck mechanism can be implemented with a simple configuration that is mounted on a support member that reciprocally swings around one fulcrum, which not only shortens the winding and packaging processing cycle but also reduces the manufacturing cost. Is also effective.

(4) In still another embodiment of the present invention, the article transport device includes a carry-in belt for placing and carrying an article, and a carry-out belt disposed so that the start end is positioned at a distance from the end of the carry-in belt. And an upper conveyor belt that is narrower than the belts and is disposed over the upper end side of the carry-in belt and the upper end side of the carry-out belt, the carry-in belt and the carry-out belt, and the upper belt The article is sandwiched and conveyed from above and below by a conveyor belt,
The film piece conveying mechanism conveys the film piece and supplies and places it on the article at a location immediately before the starting end of the upper conveying belt,
The packaging processing position is set at an interval formed between the end of the carry-in belt and the start of the carry-out belt.

  According to this embodiment, the film piece supplied onto the article is transported to the packaging processing position while being sandwiched from above and below by the carry-in belt and the upper transport belt, and from above and below by the carry-in belt, the carry-out belt, and the upper transport belt. Wrapping and wrapping can be performed on the sandwiched and stable article, and suitable wrapping without loosening can be performed.

 (5) In another embodiment of the present invention, the film piece pressing mechanism includes a pressing member that presses down both end portions of the film piece supplied on the article and pushes it down along both side surfaces of the article, and the pressing member. An auxiliary pressing member that presses the film piece against the upper surface of the article is provided.

  According to this embodiment, the film piece placed and supplied on the article is first pressed against the upper surface of the article, and then pressed down and wound along both sides of the article, so that the film piece floats on the article. The film piece can be wrapped and wrapped without loosening. Therefore, when an article such as a food pack is wrapped and packaged, it is possible to avoid the risk that the wrapped film piece will loosen and the upper lid will float.

 (6) In still another embodiment of the present invention, the film piece adhering mechanism is configured such that both end portions of the film piece that are pressed against both side surfaces of the article and hang downwardly beyond the article bottom surface are formed on the bottom surface of the article. By advancing and moving along, there is provided an adhesive member that is wrapped around and attached to the bottom surface of the article.

  According to this embodiment, the contact pressure by the sticking member only acts on the article from the bottom surface, and the article moves appropriately so that the film piece does not wrinkle or the film piece rises from the article. Can be attached.

  Thus, according to the band wrapping apparatus of the present invention, it is possible to hold the article in a stable posture and to wind the film piece accurately and attach it. In addition, since the film piece transport mechanism transports the film piece gripped by the chuck mechanism obliquely downward, for example, compared to the case of performing two-stage transport in which the film piece is transported in the horizontal direction and then transported downward. The conveyance time can be shortened, and the winding and packaging processing cycle can be shortened.

It is a schematic plan view of the banding packaging apparatus of one Embodiment of this invention. It is a schematic side view of the banding packaging apparatus of FIG. FIG. 2 is a plan view of a print processing unit in FIG. 1. FIG. 2 is a side view of the print processing unit in FIG. 1. It is a side view which shows the film piece formation part and film piece conveyance mechanism of FIG. It is a top view of the film piece conveyance mechanism of FIG. It is a rear view of the film piece conveyance mechanism of FIG. It is the side view which cut through a part of film piece pressing mechanism of FIG. It is a front view of the film piece pressing mechanism of FIG. It is a top view of the film piece pressing mechanism of FIG. It is a front view of the film piece sticking mechanism of FIG. It is a top view which shows a part of drive structure in the film piece sticking mechanism of FIG. It is a perspective view of the film piece sticking mechanism of FIG. It is a front view which shows a banding packaging process. It is a front view which shows a banding packaging process. It is a front view which shows a banding packaging process. It is a front view which shows a banding packaging process. It is a front view which shows a banding packaging process. It is a perspective view of the article hung and wrapped. It is a schematic side view of the banding packaging apparatus provided with the film piece conveyance mechanism of another embodiment. It is a front view which shows the film piece pressing mechanism of another embodiment. It is a front view of the principal part which shows the pressing operation state in the film piece pressing mechanism of FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a schematic plan view of a band wrapping apparatus according to an embodiment of the present invention, and FIG. 2 is a schematic side view thereof.

  The banding and packaging apparatus of this embodiment is for banding and packaging an article w such as a pack container with a lid containing food or the like, and the article conveying apparatus 1 for placing and conveying the article w horizontally; The film supply unit 2 for feeding and feeding the continuous wide original film F, the print processing unit 3 for printing the supplied original film F, and the printed raw film F are cut at a constant pitch. A film piece forming section 4 that forms a strip-like film piece f that is long in the left and right directions (up and down direction in FIG. 1), and a film that supplies the formed film piece f onto the article w conveyed by the article conveying apparatus 1 The piece conveying mechanism 5, the film piece pressing mechanism 6 that presses both ends of the film piece f supplied onto the article w downward and folds it along both side surfaces of the article w, and both ends of the folded film piece f Part around the bottom of the article w Only is a film strip applying mechanism 7 for attaching to are provided. In the following description, for the sake of convenience, the direction along the conveyance direction A of the article w is referred to as the front-rear direction, and the direction that is orthogonal to the horizontal direction is referred to as the left-right direction.

  The article transport device 1 has a wide carry-in belt 10 for placing the article w and horizontally transporting it to the rear packaging processing position P, and a wide carry-out belt 11 for horizontally transporting the wrapped and wrapped article w rearward. And a narrow upper transport belt 12 that is disposed to face the top from the rear portion of the carry-in belt 10 to the front portion of the carry-out belt 11 and sandwiches the article w from above and below and conveys it backward. Yes.

  The carry-in belt 10 is wound and driven by a motor-driven drive pulley 13, the carry-out belt 11 is wound and driven by a motor-driven drive pulley 14, and the upper conveyor belt 12 is wound and driven by a motor-driven drive pulley 15. Is done.

  The end of the carry-in belt 10 and the start end of the carry-out belt 11 are opposed to each other with a front-rear interval larger than the width of the film piece f, and the packaging processing position P is set at this interval. A film piece pressing mechanism 6 is disposed above the packaging processing position P, and a film piece attaching mechanism 7 is disposed below the packaging processing position P.

  The film supply section 2 is provided with a roll shaft support section 16 for horizontally supporting the original roll R, and the original film F fed from the original roll R is printed on the print processing section 3 along a predetermined travel path. Led to.

  As shown in FIG. 3 and FIG. 4, the print processing unit 3 includes the type of contents stored in the article w, the material used, the expiration date, the commodity price, the barcode, etc. Two thermal printers 17 for printing various information set in advance are arranged in parallel on the left and right. Rectangular heat sensitive areas s are formed at a constant pitch in the longitudinal direction of the film at a plurality of left and right locations on the surface of the original film F. In a portion where the raw film F is wound and guided on a platen roller 19 driven by a motor 18, a thermal head portion 17a mounted downward on the rear portion of the thermal printer 17 is brought into contact with the upper surface of the original film F to travel. Predetermined printing is continuously performed on each heat-sensitive area s of the original fabric film F.

  Each thermal printer 17 is supported so as to be freely swingable up and down around the support shaft 20 on the front side, and is urged upward by a spring (not shown), so that the spring urging force is reduced from its own weight. The upper surface of the raw film F is brought into contact with pressure. Also, by manually swinging the thermal printer 17 upward, the film running path can be opened and the film passing operation can be easily performed. The two thermal printers 17 can be adjusted to the left and right along the support shaft 20, respectively, so that the change of the film width and the change of the printing position can be accommodated.

  As shown in FIG. 5, the film piece forming unit 4 is supported by two feed rollers 21 and 22 driven by a motor horizontally and horizontally in two rows, and each feed roller 21 and 22. The presser rollers 23 and 24 are arranged so as to be freely swingable and opposed to each other, and the original fabric film F is sandwiched from above and below by the feed rollers 21 and 22 and the presser rollers 23 and 24 and conveyed. Moreover, the film conveyance path in the film piece forming unit 4 is inclined rearward and downward.

  Below the middle of the front and rear feed rollers 21, 22, a wide cutter 25 having a cutting edge formed in a chevron shape is disposed so as to be lifted and lowered by a drive mechanism (not shown), and the cutter 25 rises over the film travel path. Thus, the raw film F sandwiched from above and below at two places in the front and back is cut at the middle between the front and rear places to form a film piece f.

  Note that the perforation m for cutting (see FIG. 3) is formed in the raw film F at a pitch corresponding to the front-rear width of the film piece f, and the cutter 25 is retracted below the film travel path. The film position is set such that the perforation m is located immediately above the optical sensor and the film feed by the feed rollers 21 and 22 is stopped by the optical sensor or the like, and then the cutter 25 is raised to perform the film cutting process. Detection, feed roller drive control, and cutter up / down control are linked.

  If the peripheral speed of the rear feed roller 22 is set slightly higher than the peripheral speed of the front feed roller 21, the film portion between the front and rear rollers on which the cutter 25 acts is moderately tensioned, and the film is cut by pushing up the cutter. It can be done accurately.

  Further, on the film delivery side of the film piece forming section 4, a receiving plate 26 is provided for placing and supporting the film piece f which has been cut and sent out in a downwardly inclined posture as it is in an inclined posture. Yes. The receiving plate 26 is formed with a lateral width shorter than the left and right length of the film piece f, and is supported in a state where both ends of the fed film piece f protrude from the receiving plate 26 to the left and right.

  The presser rollers 23 and 24 are housed in a cover case 27 that can be swung up and down, and the cover case 27 is swung upward to open the film travel path upward so that the film can be easily passed therethrough. To be able to do that.

  The detailed structure of the film piece transport mechanism 5 is shown in FIGS. The film piece transport mechanism 5 is mounted and supported on a frame plate 30 standing on the back side of the article transport path, and is supported on the frame plate 30 through a pair of upper and lower inclined rails 31 so as to be capable of linear movement obliquely. The movable base 32, a support frame 33 connected to the movable base 32 in a laterally cantilevered manner, a pair of left and right support arms 34 extending obliquely forward and downward from the support frame 33, and each support arm 34 Are provided with a chuck mechanism 35 and the like mounted on the lower part.

  The movable base 32 is connected to a belt 36 wound in parallel with the inclined rail 31, and as the belt 36 rotates in the forward and reverse directions, the chuck mechanism 35 is inclined with respect to the upper film piece receiving position. The film is moved obliquely in the linear direction over the lower standby position and the film piece supply position slightly below the standby position.

  That is, the chuck mechanism 35 is configured so that the film piece f can be transported along the film transport path inclined downward and rearward in the film piece forming section 4.

  The left and right chuck mechanisms 35 are mounted inside the left and right support arms 34 so as to oppose each other, and a pair of upper and lower gripping members 35a and 35b that move toward and away from each other along the inclination direction of the support arms 34; It is composed of a pair of cylinders 37a and 37b for driving this. Then, the movable base 32 is moved upward to move the chuck mechanism 35 to the film piece receiving position, so that both end portions of the film piece f supported on the receiving plate 26 of the film piece forming unit 4 are moved to the left and right chuck mechanisms. It can be held by 35 holding members 35a and 35b. The film piece f is received by the chuck mechanism 35 at the film piece receiving position, the movable base 3 is linearly moved obliquely downward, and the chuck mechanism 35 is moved to the standby position, until the article w reaches a predetermined position below it. stand by.

  When the article w reaches a predetermined position, the movable base 32 is moved slightly diagonally downward linearly to move the chuck mechanism 35 to the film piece supply position, thereby opening the gripping members 35a and 35b of the chuck mechanism 35. Thus, the gripped film piece f is discharged and supplied onto the article w to be transported immediately before the upper transport belt 12.

  In this way, both ends of the film piece f are gripped by the gripping members 35a and 35b of the chuck mechanism 35 and conveyed along a linear movement locus, so for example, the film piece gripped at the film piece receiving position at the upper front is Compared with the case of performing a two-step movement in which the chuck mechanism 35 is temporarily moved horizontally to the upper position of the lower supply position and then lowered to the supply position, the actual moving distance of the chuck mechanism 35 is shorter than that in the case of the two-stage movement. Thus, the travel time can be shortened, and as a result, the winding and packaging processing cycle can be shortened.

  Further, the chuck mechanism 35 holding the film piece f is put on standby at a standby position immediately before the supply position of the film piece f, and when the article w reaches a predetermined position close to the standby position, the chuck mechanism 35 is moved. Since the gripped film piece f is opened, the film piece f can be stably and reliably supplied onto the article w to be transported immediately before the upper transport belt 12.

  Note that the upper and lower gripping members 35a and 35b set the left and right support arms 34 so as to sandwich the portion slightly inside the glue portion n (see FIG. 3) provided at both ends of the back surface of the film piece f. In order to correspond to film pieces f of various specifications having different left and right lengths, a structure for adjusting the position of the support arm 34 to the left and right is equipped as follows.

  That is, as shown in FIG. 6, an adjustment shaft 38 and a pair of guide shafts 39 are horizontally supported on the support frame 33 equipped with the left and right support arms 34, and the guide shafts 39 are supported by the support arms 34. Each support arm 34 is guided and supported so as to be movable left and right along a guide shaft 39, and an adjustment shaft 38 is threadedly inserted into each support arm 34.

  The adjustment shaft 38 is configured by integrally connecting a left screw shaft portion 38a and a right screw shaft portion 38b having opposite screw pitch angles via an intermediate shaft, and can be rotated by a handle 40 provided at one end thereof. It has become. Then, the left screw shaft portion 38a and the right screw shaft portion 38b of the operation shaft 38 are threaded through the left and right support arms 34, respectively, and the operation shaft 38 is rotated forward and backward, whereby the left and right support arms 34 are operated. The distance between the left and right chuck mechanisms 35 can be changed by moving them closer to or away from each other, thereby holding a suitable position corresponding to the left and right length of the film piece f. Can be done.

  The frame plate 30 on which the film piece transport mechanism 5 is mounted is supported by a device frame 28 (see FIG. 2) through a vertical rail (not shown) so that it can be moved up and down. Then, the height of the film piece supply position in the film piece transport mechanism 5 can be adjusted according to the height of the article w by moving the screw up and down. Further, the print processing unit 3 and the film piece forming unit 4 are also mounted and supported on the front part of the frame plate 30, and the film piece forming unit 4 and the film piece transporting mechanism 5 can be connected regardless of the height change of the frame plate 30. There is no change in the relative position, and the film piece can be received from the film piece forming portion 4 as expected.

  The detailed structure of the film piece pressing mechanism 6 disposed above the packaging processing position P is shown in FIGS. The film piece pressing mechanism 6 lowers the pair of left and right pressing members 42 connected to the lower ends of the pair of front and rear support shafts 41 and moves the left and right sides of the film piece f placed transversely on the article w. The protruding portion is pushed downward and is folded along the left and right side surfaces of the article w.

  The support shaft 41 having the pressing member 42 connected to the lower end is inserted and supported by the left and right support brackets 44 provided at the lower front portion of the movable frame 43 so as to be vertically slidable. The left and right support shafts 41 are integrally slid up and down, and the left and right pressing members 42 are moved up and down in synchronization.

  A crank arm 47 that is rotated around a horizontal fulcrum x by a motor 46 with a speed reducer is mounted on the front upper portion of the movable frame 43, and a free end portion of the crank arm 47 and the stay 45 are provided. It is pivotally linked via a link 48, and the left and right support shafts 41 are slid up and down as the crank arm 46 rotates.

  The distance between the left and right pressing members 42 can be adjusted according to the lateral width of the article w. That is, an adjustment shaft 49 and a pair of front and rear guide shafts 50 are horizontally mounted on the lower front portion of the movable frame 43, the guide shafts 50 are inserted into the respective support brackets 44, and the respective support brackets 44 are guided by the guide shafts 50. And an adjustment shaft 49 is threadedly inserted into each support bracket 44.

  The adjustment shaft 49 is configured by concatenating and integrally connecting a left screw shaft portion 49a and a right screw shaft portion 49b having opposite screw pitch angles, and can be rotated by a handle 51 provided at one end thereof. It has become. Then, the left screw shaft portion 49a and the right screw shaft portion 49b of the operation shaft 49 are screwed through the left and right support brackets 44, respectively, and the operation shaft 49 is rotated in the forward and reverse directions, so that the left and right support brackets 44 are rotated. The distance between the left and right pressing members 42 can be changed and adjusted by moving them closer to or away from each other.

  The movable frame 43 equipped with the film piece pressing mechanism 6 is guided and supported by a front wall portion 52a of a support frame 52 formed in an L shape in an inverted plan view so as to be movable up and down via a vertical rail 53, and also the support frame. An adjustment screw shaft 54 with a handle provided at the upper end of 52 is screwed together. Accordingly, when the adjustment screw shaft 54 is rotated by the operation of the handle 55 and the movable frame 43 is screwed up and down, a pressing member corresponding to the height of the article w is used when packaging different types of articles w. 42 can be lowered to an appropriate height.

  The upper conveyor belt 12 is mounted on the lower part of the support frame 52, and the support frame 52 itself is guided to a base frame 57 connected and fixed to the support column 56 through a pair of front and rear vertical rails 58. A support frame 52 is screwed and connected to an adjustment screw shaft 59 with a handle provided at the upper end of the base frame 7. Accordingly, by rotating the adjustment screw shaft 59 by operating the handle 60 and screwing the support frame 52 up and down, the position of the upper conveyor belt 12 is adjusted according to the height of the article w, and the carry-in belt 10 and the carry-out belt 10 are carried out. In cooperation with the belt 11, the article w can be appropriately sandwiched and conveyed from above and below.

  The detailed structure of the film piece sticking mechanism 7 is shown in FIGS. This film sticking mechanism 7 is mounted on a support frame 61 disposed below a space formed between the rear end of the carry-in belt 10 and the start end of the carry-out belt 12, and can be moved left and right and moved up and down. The left and right paired sticking members 62 and driving means for moving the left and right are configured.

  Each sticking member 62 is composed of an elastic roller whose peripheral surface is surrounded by rubber or sponge having appropriate elasticity, and is freely mounted on a support bracket 64 that is raised and lowered by a cylinder 63. In addition, two pairs of left and right guide shafts 66 are fixedly arranged on the upper portion of the support frame 61 via a support base 65, and each pair of guide shafts 66 is equipped with a movable base 67 so as to be slidable left and right. The cylinder 63 is connected to each movable table 67.

  A support shaft 67 a extending downward from each of the left and right movable bases 67 extends downward through a left and right elongated hole 68 formed in the support base 65, and a vertical fulcrum y at the center of the left and right sides of the support frame 61. A drive arm 69 is provided so as to be rotatable around, and both ends of the drive arm 69 and the support shaft 67 a are pivotally connected via a push-pull link 70. The drive arm 69 itself is linked to a motor 71 with a speed reducer disposed below the support frame 61 via a crank link mechanism 72, and the drive arm 69 reciprocally swings at a predetermined angle smaller than 180 degrees. As a result, the left and right movable bases 67 move toward and away from each other with a constant stroke L.

  When the movable base 67 is in the standby position separated from each other, the left and right sticking members 62 are raised to the sticking action height corresponding to the placement conveyance level of the article w, and the movable stands 67 are mutually connected. When in the close sticking position, each sticking member 62 enters below the article w and elastically contacts the bottom surface of the article w with an appropriate pressure.

  The banding and packaging apparatus according to the present embodiment is configured as described above. Hereinafter, the banding and packaging process will be described with reference to FIGS. 14 to 18.

  (1) When the optical sensor or the like detects that the article w has been carried in by the carry-in belt 10 of the article conveying apparatus 1, the film piece forming unit 4 is activated, and one film piece f is received by the receiving plate 26. Sent out. In synchronization with this, the film piece transport mechanism 5 is activated, the support arm 34 moves forward and upward, the chuck mechanism 35 reaches the film piece receiving position, and the chuck mechanism is located near both ends of the film piece f on the receiving plate 26. 35.

  (2) When the film piece reception is completed, the support arm 34 moves obliquely downward to the rear, the chuck mechanism 35 moves to the standby position and waits, and when the article w reaches the predetermined position, the chuck mechanism 35 moves to the film piece. While moving to the supply position, the gripping of the film piece by the chuck mechanism 35 is released. At this time, the article w is in a state where a part of the front end side is sandwiched between the upper conveyance belts 12, and the film piece f is placed and supplied near the front and rear center of the article w, and immediately, the upper side of the article w is supplied to the upper conveyance belt 12 from above. It is nipped and conveyed together with the article w in a pressed state.

  (3) The article w, which is loaded with the film piece f and held between the carry-in belt 10 and the upper carrying belt 12 from above and below, reaches the start end of the carry-out belt 11 beyond the rear end of the carry-in belt 10 and is carried in. It is further conveyed by the belt 10, the carry-out belt 11, and the upper conveyance belt 12.

  (4) When it is detected by an appropriate detection means such as an optical sensor that the front and rear center of the article w has reached the packaging processing position P, the carry-out belt 11 and the upper conveyance belt 12 are stopped, and the backward movement of the article w is stopped. Is done. At this time, the carry-in belt 10 continues to operate for conveyance of subsequent articles, and the carry-in belt 10 is fixed to the articles w sandwiched and fixed between the carry-out belt 11 and the upper conveyance belt 12 that are stopped. Continue to operate while slipping on the transfer surface.

  (5) As shown in FIGS. 14 and 15, based on the detection that the article w has reached the packaging processing position P, first, the film pressing mechanism 6 is activated and the left and right pressing members 42 at the upper standby position are activated. Is lowered, and both end portions of the film piece f protruding from the article w to the left and right are pushed downward and pushed down along the lateral edge of the article w.

  (6) Next, as shown in FIGS. 16 and 17, the film piece sticking mechanism 7 is activated, and the left and right sticking members 62 waiting in the laterally outward direction of the article transport path are advanced horizontally. It moves to the sticking action position that enters below w. As a result, the film piece f that hangs down below the article w is pushed by the sticking member 62 and wound around the bottom surface of the article w, and the glue portions n at both ends of the film piece are elastically applied to the bottom surface of the article w. Is pressed and stuck.

  (7) Next, as shown in FIG. 18, the cylinder 63 is shortened and the sticking member 62 is slightly lowered to be separated from the bottom surface of the article w, and then the original film without touching the stuck film piece f. The cylinder 63 is extended in the standby position, and the sticking member 61 is returned and raised to the original sticking action height.

  (8) When the wrapping and sticking of the film piece f is completed, the carry-out belt 11 and the upper conveyance belt 12 are actuated again, and the article w wrapped and wrapped by the film piece f as shown in FIG. Go.

  With the above, one wrapping packaging is completed, and the above process is repeated each time a new article w is carried.

[Other Embodiments]
The present invention can also be implemented in the following forms.

  (1) As shown in FIG. 20, the support arm 34 of the film piece transport mechanism 5 is configured to be able to drive and swing around a fulcrum z immediately above the winding processing position P, and at the film piece receiving position at the upper front. The left and right chuck mechanisms 35 that receive and hold the film piece f can be moved downward along the arcuate trajectory and placed and supplied onto the article w at the lower and lower film piece supply position.

  According to this, the film piece f gripped in the rearwardly lowered posture at the front upper film piece receiving position is placed and fed on the article w in the front and rear horizontal posture at the lower rear film piece supply position, and immediately the upper conveying belt. 12, and the film piece f can be smoothly supplied without being disturbed in posture and can be nipped and conveyed integrally with the article w.

  (2) As shown in FIG. 20, the carry-in belt 10 of the article conveying apparatus 1 is constituted by a front carry-in belt 10a and a rear carry-in belt 10b that are independently driven and controlled. Is continuously operated to continuously carry in the subsequent articles, and the rear carry-in belt 10b is stopped when the article w is conveyed to the winding and packaging processing position P, and the stopped rear conveyer belt 10b and carry-out belt 11 are stopped. In addition, the banding and wrapping process may be performed in a state in which the article is sandwiched and fixed by the upper conveyance belt 12 from above and below.

  (3) As shown in FIG. 21, a bracket 75 is provided on a support shaft 41 that can be moved up and down in the film piece pressing mechanism 6, and a support shaft 77 having an auxiliary pressing member 76 attached to the lower end of the bracket 75 is slid vertically. It is possible to attach it by slightly biasing it downward with a spring 78, and with the lowering operation of the movable frame 43, first, the auxiliary pressing member 76 is made to act on the left and right shoulders of the article w so that the film piece f has an appropriate force. As shown in FIG. 22, the pressing member 42 may be configured to fold the film piece f to the left and right sides of the article w as the movable frame 43 is further lowered.

  According to this, the left and right central portions of the film piece f are pressed against the upper surface of the article by the upper conveyor belt 12, and the film piece f is pressed against the left and right shoulders of the article w by the auxiliary pressing member 76. Can be reliably avoided, and banding packaging with less looseness can be performed.

  (4) In the above-described embodiment, the film piece f is placed and supplied to the article w before the packaging processing position P, and immediately pressed by the upper conveyance belt 12 to be synchronously conveyed. Although transported to the packaging processing position P without shifting, when the film piece pressing mechanism 6 provided with the auxiliary pressing material 76 is used, the upper transport belt 12 is omitted as follows. It can also be implemented in the form.

  That is, the conveyed article w is received by the stopper that is operated to protrude in the article conveyance path and stopped at the packaging processing position P, and the film piece f that is gripped and conveyed by the chuck mechanism 35 on the stopped article w. After the placement and supply, the chuck mechanism 35 is immediately returned and retracted, and then the film piece pressing mechanism 6 and the film piece adhering mechanism 7 are sequentially operated to perform the packaging process.

  If comprised in this way, the subsequent winding and sticking processing can be performed in the state where the film piece f supplied on the article w was pressed by the auxiliary pressing member 76 of the film piece pressing mechanism 6 and held in position, It is possible to omit the upper conveyance belt 12 that presses and fixes the article w and the film piece f during the packaging process. Further, since the article w is forcibly stopped and held by the stopper, it is possible to carry out the packaging process while operating not only the carry-in belt 10 but also the carry-out belt 12, and when the packaging process is completed, the article is wrapped with the stopper retracted. w can be carried out.

  (5) The adhering member 62 of the film piece adhering mechanism 7 is not necessarily in the form of a roller, and a sponge block or a rubber block that slides smoothly on the film piece f can be used as appropriate elasticity.

  (6) The article conveying apparatus 1 is not necessarily limited to the belt conveying specification as described above. For example, the article w supplied and placed on a fixed conveying table protrudes into the article conveying path and moves horizontally. It is also possible to carry out in such a form that it is pressed by a carry-in pusher and fed to the rear packaging processing position p, and the wrapped and packed article w is pushed and carried out by another carry-out pusher.

DESCRIPTION OF SYMBOLS 1 Article conveyance apparatus 5 Film piece conveyance mechanism 6 Film piece pressing mechanism 7 Film piece sticking mechanism 10 Loading belt 11 Unloading belt 12 Upper conveyance belt 35 Chuck mechanism 42 Pressing member 62 Sticking member f Film piece p Packaging processing position w Article

Claims (6)

An article conveying device for conveying an article toward a packaging processing position;
A film piece that grips both ends of a strip-shaped film piece with glued ends and conveys it obliquely downward, and supplies and places the film piece on the article conveyed by the article conveying device. A transport mechanism;
A film piece pressing mechanism that pushes down both end portions of the film piece placed on the article along both side surfaces at the packaging processing position;
A band-wrapping packaging apparatus comprising: a film piece sticking mechanism that winds and sticks both ends of the pressed film piece around a bottom surface of an article. The film piece conveying mechanism conveys a chuck mechanism that holds the film piece obliquely downward along a linear movement locus, and the film piece on the article conveyed by the article conveying device. Supply the mounting,
The banding packaging apparatus according to claim 1. The film piece conveying mechanism conveys a chuck mechanism that holds the film piece obliquely downward along an arc-shaped movement trajectory, and the film piece on the article conveyed by the article conveying device. Supply the mounting,
The banding packaging apparatus according to claim 1. The article conveying device has a carry-in belt for placing and carrying the article, a carry-out belt arranged so that a start end is positioned at a distance from a terminal end of the carry-in belt, and is narrower than both the belts, An upper conveying belt disposed over the end side of the carry-in belt and above the start end side of the carry-out belt, and conveys articles by sandwiching the articles from above and below with the carry-in belt, the carry-out belt, and the upper carry belt. Is,
The film piece conveying mechanism conveys the film piece and supplies and places it on the article at a location immediately before the starting end of the upper conveying belt,
The packaging processing position is set at an interval formed between the end of the carry-in belt and the start of the carry-out belt;
The banding packaging apparatus according to any one of claims 1 to 3. The film piece pressing mechanism includes a pressing member that presses down both end portions of the film piece supplied onto the article and pushes the film piece along both sides of the article, and presses the film piece against the upper surface of the article prior to the pressing member. Provided with an auxiliary pressing member,
The banding packaging device according to any one of claims 1 to 4. The film piece adhering mechanism winds around the bottom surface of the article by moving the both end side portions of the film piece that are pressed against both sides of the article and hang downward from the bottom of the article along the bottom surface of the article. Provided with a sticking member to be hung
The banding packaging apparatus according to any one of claims 1 to 5.

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