JP4833661B2 - Film delivery device - Google Patents

Description

  The present invention relates to a film mounting system for mounting a tubular film such as a stretch label or a shrink label on an object to be mounted such as a bottle or a bottle. For example, the film is transferred between the film supply device and the film mounting device. It is related with the film delivery apparatus which performs.

  For example, in a film mounting system in which a cylindrical film such as a stretch label or a shrink label is mounted on the outer peripheral surface of a body such as a bottle or a bottle, the long strip of the cylindrical film folded into a sheet is sequentially cut. A film supply device that sequentially supplies a cylindrical film having a predetermined length, and a film mounting device that mounts the predetermined length of the cylindrical film supplied by the film supply device on the outer peripheral surface of a barrel such as a bottle or a bottle. In such a film mounting system, a cylindrical film having a predetermined length supplied by the film supply device is delivered to the film mounting device via the film delivery device.

  As shown in FIG. 6, the film supply apparatus sucks and holds the tubular film F cut to a predetermined length on a pair of suction conveyance belts 81 and 81 arranged in parallel at predetermined intervals. The first film delivery position ε is transported to the first film delivery position ε, and the film delivery device is transported to the first film delivery position ε by a pair of suction transport belts 81, 81, and has a predetermined length. Is received by being held by suction by the holding portion 72 of the take-up member 71 passing between the pair of suction conveyance belts 81 and 81, and then conveyed to the second film delivery position ζ in that state. As shown in (a) and (b), the swing arm 92 of the film opener 91 of the film mounting apparatus grips the tubular film F at the second film delivery position ζ. It is adapted to receive.

  Accordingly, the holding portion 72 of the take-up member 71 has a U-shaped gripping portion 93 of the swing arm 92 that grips the tubular film F conveyed by the take-up member 71 as shown in FIG. So as to engage with the U-shaped gripping portion 93, and a suction hole 72 a is formed on the contact surface of the tubular film F.

Japanese Patent Laid-Open No. 2003-237749

  However, in such a film delivery device, as shown by a two-dot chain line in the figure, when the width (folded diameter) of the tubular film F folded into a sheet is increased, the center in the width direction of the tubular film F is increased. Since the free area that protrudes outside the holding portion 72 of the take-up member 71 that sucks and holds the portion increases, the protruding portion 71 greatly protrudes outside the holding portion 72 during the conveyance of the tubular film F by the take-up member 71. The side portion of the tubular film F is bent to the rear side in the moving direction of the take-up member 71, and the film opener 91 of the film mounting apparatus cannot properly grip the tubular film F.

  Therefore, in such a case, the holding portion must be replaced with a wide take-up member, and the distance between the suction conveyance belts 81 and 81 of the film supply device must be increased in accordance with the replaced take-up member. There is a problem that the setup change becomes complicated. In particular, since the film delivery apparatus is usually provided with a plurality of take-up members, all the take-up members must be exchanged, and considerable time and labor are required for the setup change.

  Accordingly, an object of the present invention is to deliver a film that can be easily replaced even when the film to be mounted on a mounted body such as a bottle is changed to a film having a different width (folded diameter). To provide an apparatus.

  In order to solve the above-mentioned problems, the invention according to claim 1 is a cylinder folded into a sheet which is conveyed while being sucked and held by a pair of sucking and conveying belts arranged in parallel at a predetermined interval. A film delivery device having a take-up member that receives a film by sucking and holding one side of the film and delivering the film to a film mounting device, the take-up member passing between a pair of suction conveyance belts And a supporting portion that passes outside of at least one of the suction conveyance belts, and the holding portion is conveyed by the pair of suction conveyance belts when passing between the pair of suction conveyance belts. By sucking and holding the coming film, the film is received from the suction conveyance belt, and the auxiliary part is sucked and held by the holding part. If the film is wide, there is provided a film delivery apparatus characterized by being adapted to support at least one side of the film protruding from the holding portion.

  As described above, in the film delivery device according to the first aspect of the present invention, not only the holding portion that passes between the pair of suction conveyance belts but also the auxiliary portion that passes outside the at least one suction conveyance belt is used as the take-up member. When the film sucked and held by the holding part is wide, at least one side of the film protruding from the holding part is supported by the auxiliary part, so that the film largely protrudes outside one of the holding parts Even so, the free area does not become extremely large, and the side part of the film does not bend greatly backwards while the film is being conveyed by the take-up member. It can be reliably received in the proper condition.

  Therefore, even when changing to a film having a different width (folding diameter), it is not necessary to replace the take-up member or widen the distance between the suction conveyance belts in accordance with the take-up member to be replaced. Replacement can be performed easily.

  Hereinafter, embodiments will be described with reference to the drawings. In FIG. 1, a cylindrical shrink label (hereinafter referred to as a label) L formed of a heat-shrinkable film made of polyester resin, polystyrene resin or the like is attached to a PET bottle (hereinafter referred to as bottle) B. The label mounting system 1 includes a bottle feeding device 2 including a belt conveyor 7, a star wheel 2a, a screw conveyor 2b, and a star wheel 2c, and a base material feeding unit 3a. A label supply device 3 for sequentially supplying the label L to the first label delivery position α is formed while sequentially cutting the fed long label forming substrate M, and the label supply device 3 is used to Label delivery device that receives the label L supplied to the first label delivery position α and transports it to the second label delivery position β 4 and the bottle B supplied from the bottle supply device 2 at the bottle supply position γ, is conveyed to the bottle delivery position δ, and the label L conveyed by the label delivery device 4 is transferred to the second label delivery position. While receiving the bottle B and transporting the bottle B from the bottle supply position γ to the bottle delivery position δ, the rotary label attaching device 5 for attaching the label L to the bottle B and the label L are attached by the label attaching device 5. The bottle B is transported out of the bottle conveying device 6 including the star wheel 6 a and the belt conveyor 7.

  The label-forming base material M is formed by continuously connecting cylindrical labels L attached to the bottle B, and is wound around a drum in a state of being folded into a sheet shape in the base material feeding portion 3a. ing. Further, as shown in FIG. 3, the labels L having a predetermined length formed by cutting the sheet-like label-forming substrate M fed from the substrate feeding portion 3a are arranged in parallel at predetermined intervals. The film is conveyed to the film supply position α while being sucked and held by the pair of sucked and conveyed belts 3b and 3b.

  As shown in FIGS. 1 to 3, the label delivery device 4 has a plurality of take-up members that rotate at a constant rotational speed so as to pass through a first label delivery position α and a second label delivery position β. 10, the take-up member 10 receives a label L supplied to the first label delivery position α in a folded state in a sheet shape, and sends it to the label mounting device 5.

  As shown in FIG. 4, the take-up member 10 includes a holding portion 11 that passes between the pair of suction conveyance belts 3 b and 3 b at the label delivery position α, and one (on the rotation center side of the take-up member 10). And an auxiliary portion 14 that passes outside the suction conveyance belt 3b. The holding portion 11 and the auxiliary portion 14 are connected to a common base arm 10a having an inverted L shape.

  The holding portion 11 includes a base portion 12 erected on the base arm 10a and five upper and lower portions connected in parallel to the base portion 12 so as to support a plurality of types of labels L having different lengths. The base 12 has two suction holes 12a formed in the label support surface on the upper end side thereof, and a suction path (not shown) communicating with the suction holes 12a. In addition, the second support arm 13 from the top includes a suction hole 13a formed in the label support surface, and a suction path (not shown) for communicating the suction hole 13a with a suction path formed in the base 12. ).

  The auxiliary portion 14 has three upper and lower portions connected in parallel to the base portion 15 so as to support a base portion 15 standing on the base arm 10a and a plurality of types of labels L having different lengths. A short support arm 16 is provided, and a drooping arm 17 extending downward is connected between the holding portion 11 and the auxiliary portion 14 on the base arm 10a.

  Accordingly, when the take-up member 10 rotating at a constant rotational speed passes through the first label delivery position α, the label L supplied while being sucked and held by the pair of suction conveyance belts 3b and 3b is removed. As shown in FIG. 4, when the take-up member 10 receives the label L, the upper end edge of the label L is placed on the uppermost support arm 13 in the holding portion 11. The center portion of one side of the label L is supported by the plurality of support arms 13 so that at least the vicinity of the upper end portion of the label L is sucked and held by the label support surface of the holding portion 11 so that the width is wide. In the case of the label L, one side portion (the center side of the rotation of the take-up member 10) that protrudes from the holding portion 11 is supported by the auxiliary portion 14.

  In this state, the take-up member 10 transports the label L to the second label delivery position β. In the case of the wide label L, the other protruding from the holding portion 11 (the outward rotation of the take-up member 10) As shown in FIG. 5, the label L bends to the rear side in the moving direction of the take-up member 10 moving on the circular orbit. Therefore, in this label delivery device 4, as shown in the figure, in the movement direction, the other side portion of the label L protruding from the holding portion 11 of the take-up member 10 is just before the second label delivery position β. An attitude correction unit 18 is installed to correct the bending of the label L by continuously blowing air from the rear side. In this posture correcting unit 18, air blowing nozzles (diameter: 1 mm) are arranged in multiple stages in the vertical direction (the interval between adjacent nozzle centers is 3 mm, and the interval between the uppermost nozzle center and the lowest nozzle center is 39 mm). The air blowing angle can be adjusted.

  As shown in FIGS. 1 and 2, the label mounting device 5 is arranged on a concentric circle around the rotation axis via a plurality of support disks 21, 22, and 23 attached to the rotation axis (not shown). A large number of label mounting heads 20 attached at regular intervals are provided, and each label mounting head 20 causes a cylindrical label L folded into a sheet received at the second label delivery position β to be outside the bottle B. The label L is expanded larger than the diameter, and the expanded label L is attached to the body of the bottle B while the bottle B received at the bottle supply position γ is being transported to the bottle delivery position δ. Yes.

  The label mounting head 20 is folded into a bottle holding means 30 for holding the bottle B received at the bottle supply position γ in a state of being placed on the bottle holding base 31, and a sheet received at the second label delivery position β. The label opener 40 which opens the label L in a cylindrical shape, the label expanding means 50 which expands the cylindrical label L opened by the label opener 40 larger than the outer diameter of the bottle B, and the label expanding A sheet-like shape received by the second label delivery position β, comprising label insertion means 60 for inserting the label L expanded by the opening means 50 into the bottle B placed on the bottle holder 31. After the label L in the folded state is opened in a cylindrical shape by the label opener 40, the label L is further expanded by the label expanding means 50. While the bottle B received at the supply position γ is being transported to the bottle delivery position δ while being held by the bottle holder 31, the label L that is expanded larger than the outer diameter of the bottle B is the label insertion means 60. Thus, it is inserted into the body of the bottle B.

  As shown in FIG. 2, the label opener 40 includes a pair of swingable arms 41 that can be opened and closed with a comb-like gripping part that meshes with the comb-like holding part 11 of the take-up member 10 attached to the tip. A suction means (not shown) that sucks and holds both sides of the label L folded in a sheet shape by suction from the suction port formed on the gripping surface, and an open / close that opens and closes the pair of swing arms 41 The label L folded in the form of a sheet, which is conveyed in a state in which one side is sucked and held by the take-up member 10 of the label delivery unit 4, is formed at the second label delivery position β. 3 and FIG. 5, after being received by gripping portions of the pair of swinging arms 41, the label L is sucked and held on the gripping portions. By separating the two sides of the label L to each other to open the swinging arm 41, so as to open the label L into a tubular shape.

  As shown in FIG. 2, the label expanding means 50 includes a cylindrical support member 51 supported by the support disk 23 so as to be movable up and down, and a label expanding mechanism portion 52 attached to the lower end of the support member 51. And a cam mechanism 53 for raising and lowering the support member 51. When the support member 51 is lowered, the label expanding mechanism 52 is inserted into the label L opened by the label opener 40. It has become.

  The label spreading mechanism 52 includes a base portion 52a fixed to the lower end portion of the support member 51, and a base end portion (upper end portion) such that the front end side (lower end side) opens and closes to the base portion 52a. ) Are supported, a spring (not shown) that biases the distal end of the opening / closing rod 52b in the closing direction, and an opening / closing rod 52b that is biased in the closing direction by the spring (not shown). After the closed opening / closing bar 52b is inserted into the label L opened by the label opener 40, the opening / closing bar 52b is opened, so that the label L is expanded. It has become.

  As shown in FIG. 2, the cam mechanism 53 that raises and lowers the support member 51 includes a cam groove 54a formed in a cylindrical body 54 surrounding the upper portion of the label mounting head 20, and the support member 51 fitted into the cam groove 54a. The roller 55 is supported by the upper end, and the label mounting head 20 rotates around the rotation axis, so that the roller 55 moves while moving up and down along the cam groove 54a. The support member 51 on which the roller 55 is supported moves up and down.

  The label insertion means 60 includes a support bar 61 supported by the support disk 23 so as to be movable up and down, a label pressing plate 62 attached to the lower end of the support bar 61, and a cam mechanism for moving the support bar 61 up and down. 63, and a hole (not shown) for inserting the entire four opening / closing rods 52b is formed in the label pushing plate 62.

  The cam mechanism 63 includes a second cam groove 54b formed in the cylindrical body 54 that surrounds the label mounting head 20, and a roller 64 that is fitted in the cam groove 54b and supported by an intermediate portion of the support bar 61. The roller 64 moves while moving up and down along the second cam groove 54b as the label mounting head 20 rotates about the rotation axis, and the roller 64 is supported accordingly. The support bar 61 is raised and lowered.

  Therefore, after the label L is expanded by the opening / closing bar 52b of the label expanding means 50, when the label pushing plate 62 is lowered along the opening / closing bar 52b, the label L is pushed downward by the label pushing plate 62, A label L is inserted into the body of the bottle B located immediately below.

  As shown in FIG. 2, the roller 55 and the roller 64 are supported by the support member 51 and the support rod 61 via the attachment member 56 and the attachment member 65, respectively, but the attachment member 56 is supported by the support rod 61. The mounting member 65 is slidably supported by the support member 51, and the long support member 51 and the support bar 61 support each other to enhance the support stability of both.

  As described above, in this label mounting system 1, the take-up member 10 of the label delivery device 4 is not only the holding unit 11 that passes between the pair of suction conveyance belts 3b and 3b at the first label delivery position α. Since the auxiliary portion 14 that passes outside the one suction conveyance belt 3b is provided, when the label L sucked and held by the holding portion 11 is wide, one side portion of the label L that protrudes from the holding portion 11 is It can be supported by the auxiliary part 14. Thereby, even when the label L protrudes greatly on one outer side of the holding portion 11, the unsupported free region in the label L does not become extremely large, and the label L by the take-up member 10 Since the side portion of the label L is greatly bent rearward during conveyance and does not wrap around the back side of the take-up member 10, the swing arm 41 of the label opener 40 is ensured in an appropriate state even for the wide label L. Can be gripped.

  Further, in the case of the wide label L, the other side portion protruding from the holding portion 11 is not supported at all, so that, as described above, the take-up member 10 moving on the circular track has a moving direction. The label L is bent on the rear side. In this label delivery device 4, the label protruding from the holding portion 11 of the take-up member 10 by the posture correcting unit 18 at a position immediately before the second label delivery position β. Since the bending of the label L is corrected by blowing air to the other side of the L from the rear side in the moving direction, the swing arm 41 of the label opener 40 is ensured in an appropriate state even for the wide label L. Can be gripped.

  Therefore, in this label delivery device 4, even when changing to a label having a different width (folding diameter), the take-up member 10 is exchanged or matched to the width of the holding portion 11 of the exchanged take-up member 10. It is not necessary to widen the interval between the suction conveyance belts 3b and 3b, and the setup can be easily changed.

  The take-up member 10 is provided with a hanging arm 17 connected between the holding portion 11 and the auxiliary portion 14 of the base arm 10a, that is, on one side of the label L sucked and held by the holding portion 11. Therefore, even if the bottle B to which the label L is attached is a large bottle, the take-up member 10 does not interfere with the bottle and can cope with a long label. Accordingly, it is not necessary to lift the label mounting head 20 upward in order to cope with the long label, and the label mounting device 5 can be made compact.

  In the above-described embodiment, the auxiliary portion 14 is formed in a comb-like shape like the holding portion 11. However, the auxiliary portion 14 is not necessarily interfered with the swing arm 41 of the label opener 40. It is not necessary to have a comb-teeth shape, and a plate shape is also possible.

  In the above-described embodiment, the take-up member 10 is provided with the auxiliary portion 14 that supports one side portion of the label L protruding from the holding portion 11, but the label opener of the label mounting device 5 that receives the label L is provided. If it does not interfere with 40, it is also possible to provide auxiliary parts on both sides of the holding part 11, in which case the posture correcting unit 18 described above can be omitted.

  In the above-described embodiment, the auxiliary portion 14 only supports one side portion of the label L, but is not limited to this, and the label L is sucked and held in the same manner as the holding portion 11. May be.

  Further, in the above-described embodiment, the posture correction unit 18 in which the air blowing nozzles are arranged in multiple stages in the vertical direction is adopted, but the present invention is not limited to this, and a vertically long slit-like air outlet is provided. It is also possible to adopt a nozzle that has an air blowing range that can be adjusted according to the height of the label L, such as adjusting the number of nozzle stages used and the length of the slit. It is desirable to keep it. In particular, depending on the operating state of the label delivery device 4 (for example, the size of the label L, the rotation speed of the take-up member 10 (including the stopped state), etc.) By providing control means for controlling position (angle), on / off, etc., it becomes possible to perform more appropriate posture correction.

  In the above-described embodiment, air is continuously blown from the air blowing nozzle in order to cope with high speed operation. However, the present invention is not limited to this, and in the case of low speed operation, the label passes. You may make it blow air intermittently according to timing.

  Further, in the embodiment described above, the label transport posture is corrected by blowing air to the other side portion of the label L immediately before the second label delivery position β. However, the present invention is not limited to this. A plurality of posture correction units are installed between the first label delivery position α and the second label delivery position β along the movement path of the take-up member 10 to change the transport posture of the label L. You may make it correct in steps.

  In the above-described embodiment, the case where the shrink label L is mounted on the PET bottle B has been described. However, the mounted body is not limited to the PET bottle B as described above, and the film delivery apparatus of the present invention is Needless to say, the present invention can be applied to a case where a tubular film folded into a sheet such as a stretch label or a shrink label is attached to various containers and tubular bodies such as bottles and cans.

It is a schematic plan view which shows the label mounting system provided with the label delivery apparatus which is one Embodiment of the film delivery apparatus concerning this invention. It is the schematic which shows the label mounting apparatus (label mounting head) in a label mounting system same as the above. It is the schematic which shows the label delivery apparatus in a label mounting system same as the above. It is a front view which shows the take-up member mounted in the label delivery apparatus same as the above. It is the schematic which shows the conveyance state of the label by a label delivery apparatus same as the above. It is a front view which shows the take-up member mounted in the conventional label delivery apparatus. (A) is a figure which shows the state which delivers a label from the take-up member of a label delivery apparatus same as the above to the label opener of a label mounting apparatus, (b) is a top view which shows a label opener same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Label mounting system 3 Label supply apparatus 3b Suction conveyance belt 4 Label delivery apparatus (film delivery apparatus)
5 Label mounting device (film mounting device)
DESCRIPTION OF SYMBOLS 10 Take-up member 11 Holding part 12 Base part 12a, 13a Suction hole 13 Support arm 14 Auxiliary part 15 Base part 16 Support arm 17 Drooping arm 18 Posture correction unit (posture correction means)
DESCRIPTION OF SYMBOLS 20 Label mounting head 30 Bottle holding means 40 Label opener 41 Swing arm 42 Opening / closing drive means 50 Label expanding means 60 Label insertion means α First label delivery position β Second label delivery position B PET bottle L Shrink label

Claims (1)

A cylindrical film folded into a sheet conveyed while being sucked and held by a pair of suction and conveying belts arranged in parallel at a predetermined interval is received by sucking and holding one surface thereof, A film delivery device provided with a take-up member for sending to a film mounting device,
The take-up member includes a holding portion that passes between the pair of suction conveyance belts, and an auxiliary portion that passes outside of at least one of the suction conveyance belts,
The holding unit is configured to receive the film from the suction conveyance belt by sucking and holding the film conveyed by the pair of suction conveyance belts when passing between the pair of suction conveyance belts,
When the film sucked and held by the holding portion is wide, the auxiliary portion supports at least one side portion of the film protruding from the holding portion.

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