JP2014234173A - Banding and packaging apparatus - Google Patents

Abstract

An object of the present invention is to provide a belt wrapping apparatus capable of accurately winding a strip-shaped film piece around an article without raising the article. An article transport mechanism for transporting an article w to a winding processing position, and a posture in which a strip-shaped film piece with an end glued in the vicinity of the article w at the winding processing position a is orthogonal to the article w. The film piece transport mechanism 14 to be fed in, the film pressing mechanism 41 that presses the supplied film piece f over the main surface of the article w and both lateral sides thereof, and both ends of the film piece f pressed against the article w. A film winding mechanism 42 is provided which winds around the article w and attaches the other end to one end of the film piece f. [Selection] Figure 2

Description

  The present invention relates to a band wrapping apparatus for winding a strip-shaped film piece around an article.

  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 an object of the present invention is to provide a wrapping and packaging apparatus capable of accurately winding a film piece around an article without raising the article.

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

(1) A wrapping and packaging apparatus according to the present invention comprises:
An article transport mechanism for transporting an article to a winding processing position;
A film piece transport mechanism for transporting a strip-shaped film piece with glued ends;
A film pressing mechanism for pressing the conveyed film piece over the main surface of the article at the winding processing position and both side surfaces thereof;
A film winding mechanism for winding both ends of the film piece pressed against the article around the article and attaching the film piece;

  According to the present invention, the film piece is pressed against the article conveyed to the winding position by the article conveying mechanism with the film pressing mechanism, and both ends of the pressed film piece are wound with the film winding mechanism. As described above, it is not necessary to raise the article and press it against the film piece, and it is not necessary to wind the film piece while transferring the article to the free roller. The film can be wound, and both ends of the film piece can be stably wound and bonded regardless of the size of the article. Furthermore, the film pressing mechanism not only functions to press the film piece against the article, but also exhibits a function of pressing and fixing the article, so that both ends of the film piece are securely fixed to the article. Therefore, the film piece can be satisfactorily performed without causing a shift or wrinkle of the film piece.

  (2) In a preferred embodiment of the present invention, the article conveying mechanism conveys the article in a horizontal direction, and the film piece conveying mechanism conveys the film piece in a direction orthogonal to the conveying direction of the article. And the said film piece is conveyed above the said goods in the said winding process position, and the said film press mechanism presses the said film piece conveyed above the said article below.

  According to this embodiment, the article is transported horizontally to the winding position by the article transport mechanism, the film piece is transported above the article by the film piece transport mechanism, and the film piece is moved downward by the film pressing mechanism. Since it can be pressed and pressed against the article, it is not necessary to raise the article and press it against the film piece as in the prior art.

  (3) In another embodiment of the present invention, the article transport mechanism includes a pair of transport belts arranged at intervals, and the article placed across the pair of transport belts is wound on the winding. Transport to the hanging processing position.

  According to this embodiment, since the article is placed and transported to the winding processing position over a pair of transport belts arranged with an interval, the spacing between the pair of transport belts is set at the winding processing position. Utilizing it, both ends of the film piece can be wound around the article.

  (4) In another embodiment of the present invention, the film piece conveyance mechanism conveys the film pieces while holding both end portions thereof.

  According to this embodiment, the thin and light film piece is not damaged as compared with the case where the film piece is nipped up and down between the feeding roller and the nipping roller and conveyed with the chuck claw or the like. It can be transported accurately.

  (5) In still another embodiment of the present invention, the film piece transport mechanism can change and adjust the interval between the suction holding positions.

  According to this embodiment, even when the length of the film piece is changed according to the size of the article, the film piece can be adsorbed and conveyed at an appropriate position.

  (6) In another embodiment of the present invention, the film piece transport mechanism connects the suction transport belt having suction holes to a hollow box-shaped transport case for sliding contact and guides the belt in the transport case. The negative pressure of the transport case is applied to the suction hole of the suction transport belt through the through hole formed in the surface.

  According to this embodiment, the film piece adsorbed in the adsorption hole is received by a wide belt surface around the adsorption hole. For example, when the film is adsorbed and held using an adsorption pad, The film is not locally deformed to leave an adsorption mark, and even a very thin film piece can be accurately conveyed without deformation.

  (7) In still another embodiment of the present invention, the film winding mechanism includes a pair of winding members that are movable in the article conveyance direction by the article conveyance mechanism, and the pair of winding members is By moving along the conveying direction with a time difference, each end of the film piece pressed against the article at the winding position is sequentially wound around the article.

According to this embodiment, by moving both ends of the film piece pressed against the article by the film pressing mechanism sequentially with a time difference between the pair of winding members,
The film ends can be overlapped by being accurately wound around the article.

  (8) In another embodiment of the present invention, the film piece is unrolled from the raw film and cut into a set width.

  According to this embodiment, it is possible to reliably supply one sheet at a time without trouble such as feeding two sheets, as compared with a case where film pieces cut in advance are stacked and taken out one by one and supplied to the winding processing position. Can do.

  According to the present invention, the film piece is pressed against the article conveyed to the winding processing position, and both ends of the film piece are wound around the article. There is no need to press against the film piece, and there is no need to wind the film piece while transferring the article to the free roller, and the film piece can be wound only by transporting the article to the winding processing position. Regardless of the size such as the height, it is possible to stably wind and bond both ends of the film piece.

It is a schematic plan view of a banding packaging apparatus. It is a schematic front view of a banding packaging apparatus. It is a schematic side view of the whole banding packaging apparatus. It is a top view of an article conveyance mechanism. It is a top view of a film piece formation part. It is a vertical side view of a film piece formation part. It is a front view of a film piece formation part. It is a front view of a film piece conveyance mechanism. It is a partially notched top view which shows a part of film piece conveyance mechanism. It is a vertical side view of a film piece conveyance mechanism. It is a top view of a film winding part. It is a front view of a film winding part. It is a side view of a film winding part. It is a front view which shows film winding operation | movement. It is a front view which shows film winding operation | movement. It is a front view which shows film winding operation | movement. It is a perspective view of the article hung and wrapped.

  Hereinafter, embodiments of the present invention will be described 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, FIG. 2 is a schematic front view thereof, and FIG. 3 is a schematic side view thereof.

  This banding and packaging apparatus includes an article conveying mechanism 1 that places and horizontally conveys an article w to be subjected to a banding and packaging process, and a film supply that supplies a strip-shaped film piece f above the supplied article w A part 2 and a film winding part 3 for wrapping the supplied film piece f around the article w and bonding them are provided. In the following description, for the sake of convenience, the direction along the conveyance direction A of the article w shown in FIG. 1 is referred to as the left-right direction, and the direction horizontally orthogonal to this is referred to as the front-rear direction.

  As shown in FIG. 4, which is a plan view of the article transport mechanism 1, the article transport mechanism 1 is configured by winding and stretching a pair of front and rear transport belts 4 horizontally at right and left intervals. A driving pulley 6 and an idle pulley 7 are pivotally supported at both ends of the conveyance frame 5 disposed horizontally, and the conveyor belt 4 is wound around the drive pulley 6 and the idle pulley 7. At the same time, in the upper conveying path, the conveying belt 4 is slidably guided by a grooved guide 8 provided on the upper surface of the conveying frame 5 and travels horizontally. Then, for example, an article w having a rectangular plan shape such as a food tray with a lid and a rectangular longitudinal section is placed on both conveying belts 4 in a posture in which the long side is directed in the front-rear direction, and the winding processing position It is conveyed to a.

  As shown in FIGS. 1 and 3, the film supply unit 2 has a roll for horizontally supporting the original roll 10 of film F on which design patterns such as product names and illustrations are continuously printed at a constant pitch. The hot support 12 that prints and prints the expiration date for each design pattern at a predetermined position on the upper surface of the film F that is fed from the web roll 10 and the film F after the printing process is set to the pitch of the design pattern. A film piece forming portion 13 that forms a strip-like film piece f that is cut to a certain width to form a strip-like film piece that is long on the left and right sides, and the formed film piece f in a horizontal position on the left and right above the article w at the winding processing position a. And a film piece transport mechanism 14 for transporting to the top.

  As shown in FIG. 5, in the film piece forming portion 13, a feeding roller 15 having a large number of small width rollers 15a mounted in parallel on a support shaft 15b and a plurality of small width rollers 16a mounted in parallel on a support shaft 16b. An intermediate feed roller 16 and a feed roller 17 in which a large number of narrow rollers 17a are mounted in parallel on a support shaft 17b are pivotally supported horizontally in the front and rear three rows, and the feed roller 15 and the intermediate feed roller 16 are In addition, the output gear G0 of the motor 18 with a reduction gear is interlocked via gears G1 and G2, and the feed roller 17 is interlocked with the intermediate feed roller 16 via a plurality of ring-shaped belts 19; The feed roller 15, the intermediate feed roller 16, and the feed roller 17 in the row are driven to rotate synchronously in the same direction.

  Further, as shown in FIGS. 3 and 6, long support rollers 20 and 21 are arranged so as to be free to rotate above the feeding roller 15 and the intermediate feeding roller 16, respectively, and fed out from the original roll 10. The film F is sandwiched between the upper and lower rollers 20, 15; Here, the gear G2 of the intermediate feed roller 16 is set to be slightly smaller in diameter than the gear G1 of the feed roller 15, and the peripheral speed of the intermediate feed roller 16 is slightly faster than the peripheral speed of the feed roller 15. The film F is sent in tension due to the difference in peripheral speed.

  The support rollers 20 and 21 are supported in a freely swingable cover case 22 so that the film travel path can be increased by lifting and swinging the cover case 22 upward as shown in FIG. The film can be easily opened through the film.

  Below the feeding roller 15 and the intermediate feeding roller 16, a cutter 23 having a chevron formed in a chevron shape is disposed so as to be able to move up and down. The film F sandwiched from above and below is cut in the middle of the front and rear sandwiched portions. In addition, a perforation m for cutting (see FIG. 1) is formed in advance between each design pattern in the film F, and the perforation m is located immediately above the cutter 23 that is retracted below the film travel path. Film position detection, motor control, and cutter up / down control are interlocked so that film feeding is stopped by optically detecting the position, and then the cutter 23 is raised and the film cutting process is executed. Yes.

  The film piece conveyance mechanism 14 is configured by arranging a pair of left and right suction conveyance belts 25 in the front-rear and horizontal directions from the position immediately after the film piece forming unit 13 to the upper side of the article conveyance mechanism 1.

  8 is a front view of the film piece conveying mechanism 14, FIG. 9 is a cut-away plan view showing a part thereof, and FIG. 10 is a longitudinal side view thereof.

  As shown in these drawings, suction holes 26 are formed in the center of the lateral width of the suction conveyance belt 25 at a constant circumferential pitch so as to penetrate inside and outside the belt, and the front end portion of the conveyance case 27 configured in a hollow box shape. A suction conveyance belt 25 is wound around a drive pulley 28 that is pivotally supported on the belt and a tension pulley 29 that is pivotally supported on the rear end portion of the conveyance case 27. The suction conveyance belt 25 is disposed so as to be in sliding contact with the lower surface of the conveyance case 27 in the lower belt rotation path serving as the film conveyance path and to pass through the inside of the conveyance case 27 in the upper return path. Has been.

  A through hole 30 is formed on the lower surface of each transport case 27 along the moving path of the suction hole 26 in the suction transport belt 25, and the inside of the case is sucked by a suction blower 31 connected to the upper surface of the transport case 27. The negative pressure acts on the suction holes 26 of the suction conveyance belt 25 through the through holes 30, and the negative pressure acting on the suction holes 26 causes the lower surface of the suction conveyance belt 25 to be near the left and right ends of the film piece f. Is sucked and held, and the film piece f is transported backward by the rotation of the suction transport belt 25 and supplied to the winding processing position a.

  As shown in FIG. 8, a guide shaft 33 and a drive shaft 34 that are supported over the left and right frames 32 that are erected and fixed as shown in FIG. 9 and 10, the drive pulley 28 is externally fitted to the drive shaft 34 so as to be able to transmit power to the drive shaft 34 via the key 35 and to be movable left and right. The suction conveyance belt 25 moved left and right together with the conveyance case 27 can be driven at an arbitrary position in the left-right direction. Note that the drive shaft 34 is driven by being linked to a motor 36 disposed outside the frame 32 via a belt 37 and interlockingly connected thereto.

  An operation shaft 38 for adjusting the belt interval is supported across the left and right frames 32 as shown in FIG. The operation shaft 38 is configured by concatenating and connecting a left screw shaft portion 38a and a right screw shaft portion 38b having opposite screw pitch angles, and is rotated by a handle 39 provided at one end thereof. It is like that. The left and right transport cases 27 are threaded through the left screw shaft portion 38a and the right screw shaft portion 38b of the operation shaft 38, respectively. By rotating the operation shaft 38 forward and backward, The conveyance case 27 is configured to be able to change the distance between the two adsorption conveyance belts 25 by moving the conveyance case 27 closer to or away from each other, and adsorbs a suitable position corresponding to the left and right length of the film piece f. Can be done.

  As shown in FIGS. 2 and 3, the film winding portion 3 includes a film pressing mechanism 41 disposed between the two conveying belts 4 above the winding processing position a, and a lower portion of the winding processing position a. A film winding mechanism 42 provided between the two conveying belts 4 is provided.

  11 is a plan view of the film winding section 3, FIG. 12 is a front view thereof, and FIG. 13 is a side view thereof.

  The film pressing mechanism 41 of the film winding unit 3 includes a movable base 46 that can be moved up and down via a guide vertical axis 44 on a support frame 43 that is erected and fixed, and is driven up and down by a cylinder 45. 46 can be moved up and down via four guide shafts 47, and can be elastically deformed attached to the lower surface of a support bracket 49 that is slid downward by a coil spring 48 fitted on the guide shaft 47. A main pressing member 50, and a pair of left and right movable brackets 52 supported on the movable base 46 so as to be movable left and right along the guide horizontal shaft 51, and a support inserted through the movable bracket 52 so as to freely move up and down. A shaft 53 and a side pressing member 54 attached to the lower end of the shaft 53 are provided. When the movable base 46 is lowered, the main pressing member 50 elastically presses the central portion of the film piece f against the upper surface, which is the main surface of the article w, and the side pressing member 54 presses the left and right sides of the film piece f. The portion is pressed and bent downward along the left and right side surfaces of the article w.

  An operation shaft 55 for adjusting the position of the side pressing member 54 corresponding to the lateral width of the article w is supported on the movable base 46. The operation shaft 55 is configured by abutting and connecting a left screw shaft portion 55a and a right screw shaft portion 55b having opposite screw pitch angles, and can be rotated by a handle 56 provided at one end thereof. Yes. The left and right movable brackets 52 are threaded through the left screw shaft portion 55a and the right screw shaft portion 55b of the operation shaft 55, respectively. By rotating the operation shaft 55, the left and right movable brackets 52 are mutually connected. The distance between the left and right side pressing members 54 can be adjusted in accordance with the left and right widths of the article w by moving toward or away from each other.

  As shown in FIGS. 2 and 13, the film winding mechanism 42 includes a pair of left and right movable stands 58 and 59 that can move left and right along a common guide rail 57 that is fixedly arranged horizontally on the left and right sides, and each movable stand. Cylinders 60 and 61 for moving the left and right 58 and 59, and winding members 64 and 65 made of resin blocks supported by the movable bases 58 and 59 through the cylinders 62 and 63 so as to be movable up and down. As the winding members 64 and 65 rise and move downward toward the article w, the film piece f bent downward along the left and right side surfaces of the article w is wound around the article w along the lower surface. It has become.

  Here, the left and right winding members 64 and 65 are controlled so as to advance and move downward with respect to the article w with a time difference, whereby the other end of the film piece f wound around the lower surface of the article w is placed on the other end. The end portions are overlapped, and both end portions of the film piece f are bonded together with a pre-applied adhesive.

  Depending on the size of the article w and the film piece f, the end of the film piece f may be attached to the lower surface of the article w without overlapping.

  The band wrapping apparatus of this embodiment is configured as described above. The article w is transported and set to the winding processing position a by the article transport mechanism 1, and the film piece f is wound to the winding processing position 9 by the film piece transport mechanism 9. First, the film pressing mechanism 41 of the film winding section 3 is operated, and as shown in FIG. 14, the central portion of the film piece f is placed on the upper surface of the article w by the main pressing member 50 that moves downward. While being pressed, the left and right side portions of the film piece f are pressed by the side pressing member 54 and bent downward along the left and right side surfaces of the article w.

  In this case, as shown in FIG. 15, when the movable base 46 is further lowered, the main pressing member 50 is relatively raised with respect to the movable base 46 while compressively deforming the coil spring 48, and the film piece f is an article w. It will be elastically pressed against the upper surface of the substrate with an appropriate force. The side pressing member 54 that presses the film piece f against the left and right shoulders of the article w is also moved relative to the movable bracket 52 as the movable base 46 further moves downward after coming into contact with the article w. The film piece f that is relatively displaced and is wound around the left and right shoulders of the article w is pressed by the weight of the side pressing member 54 and a member integrated therewith.

  When the film pressing operation by the film pressing mechanism 41 is completed, the film winding mechanism 42 is operated, and as shown in FIG. 16, the winding members 64 and 65 are raised to the workpiece conveyance height, and then directed downward of the article w. By horizontally moving, the film piece f folded downward along the left and right side surfaces of the article w is wound along the lower surface of the article w, and the end portions thereof are overlapped and bonded together, thereby FIG. As shown in FIG. 3, an article w in which a band-shaped film piece f is wound and packaged is obtained.

  When the film winding process is completed, the film pressing mechanism 41 and the film winding mechanism 42 of the film winding unit 3 return to the original standby state, and the article transport mechanism 1 operates to wrap and wrap the film. The article w is unloaded.

  With the above, one band wrapping is completed, and the above process is repeated as the article w is carried in.

  As described above, according to the banding and packaging apparatus of the present embodiment, the film piece f is pressed against the article w transported to the winding processing position by the article transport mechanism 1 by the film pressing mechanism 41 and pressed. Since both ends of the film are wound by the film winding mechanism 42, it is not necessary to raise the article and press it against the film piece as in the prior art, and it is not necessary to wind the film piece while transferring the article to the free roller. The film piece f can be wound only by conveying the article w to the winding processing position. Accordingly, the film piece can be stably wound and pasted on the article regardless of the size such as the width and height of the article.

(Other embodiments)
The present invention can also be implemented in the following forms.

  (1) The article transport mechanism 1 that transports the article w to the winding processing position a is not limited to the one that simply places and transports the article w, and depending on the type and shape of the article w, the chain It is also possible to adopt a form in which the article w is engaged and held in a predetermined posture with the attached bracket, or one end or both ends of the article w are held and conveyed by a chuck or the like attached to the chain.

  (2) It is also possible to stack and load film pieces f that have been cut into strips in advance, take them one by one, and supply them to the winding processing position a.

  (3) As means for applying a negative pressure to the transport case 27 in the film piece transport mechanism 14, a vacuum pump installed and fixed at another place and the transport case 27 may be connected to each other by a suction hose or the like. it can.

  (4) The film piece transport mechanism 14 is configured to reciprocate between the film supply unit 2 and the winding processing position a by lightly holding the left and right ends of the film piece f with a pair of left and right suction pads. You can also

DESCRIPTION OF SYMBOLS 1 Article conveyance mechanism 14 Film piece conveyance mechanism 25 Adsorption conveyance belt 26 Adsorption hole 27 Conveyance case 30 Through-hole 41 Film pressing mechanism 42 Film winding mechanism 64 Winding member 65 Winding member f Film piece w Article

Claims (8)

An article transport mechanism for transporting an article to a winding processing position;
A film piece transport mechanism for transporting a strip-shaped film piece with glued ends;
A film pressing mechanism for pressing the conveyed film piece over the main surface of the article at the winding processing position and both side surfaces thereof;
A film winding mechanism for winding both ends of the film piece pressed against the article around the article, and attaching the film piece;
A wrapping and packaging apparatus comprising: The article transport mechanism transports the article in a horizontal direction,
The film piece conveyance mechanism conveys the film piece in a direction orthogonal to the conveyance direction of the article, and conveys the film piece above the article in the winding processing position, The film pressing mechanism presses the film piece conveyed above the article downward,
The banding packaging apparatus according to claim 1. The article transport mechanism includes a pair of transport belts arranged at intervals, and transports the article placed over the pair of transport belts to the winding processing position.
The banding packaging apparatus according to claim 1 or 2. The film piece conveying mechanism conveys the film piece by suction holding both ends thereof,
The banding packaging apparatus according to any one of claims 1 to 3. The film piece transport mechanism can change and adjust the interval between the suction holding positions.
The banding packaging apparatus according to claim 4. The film piece transport mechanism is configured to connect a suction transport belt having suction holes to a hollow box-shaped transport case that slide-guides and sucks and transports the suction transport belt through a through hole formed in the belt guide surface of the transport case. Apply the negative pressure of the transport case to the suction hole of the belt,
The banding packaging device according to claim 4 or 5. The film winding mechanism includes a pair of winding members that can move along the conveyance direction of the article by the article conveyance mechanism, and the pair of winding members move along the conveyance direction with a time difference. , Each end of the film piece pressed against the article at the winding processing position is sequentially wound around the article,
The banding packaging apparatus according to any one of claims 1 to 6. The film piece is one that is unwound from the original film and cut into a set width.
The banding packaging apparatus according to any one of claims 1 to 7.

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