JP6116340B2 - Film fitting device - Google Patents

Description

  The present invention relates to a film fitting apparatus for fitting a tubular film such as a shrink label or a stretch label supplied in a folded state into a sheet, for example, to a fitting body such as a bottle or a bottle.

  In this type of film covering apparatus, for example, as shown in FIG. 14, first, a take-up member 81 sucks and holds one side of a predetermined length of a cylindrical film F supplied in a folded state. Then, the opener 82 receives the tubular film F from the take-up member 81 and opens it.

  As shown in FIGS. 15 (a) and 15 (b), the opener 82 is a first suction rod that sucks one surface side of the tubular film F folded in a sheet shape at a predetermined interval in the width direction. 82a and a second suction rod 82b, and a third suction rod 82c and a fourth suction rod 82d for sucking positions corresponding to the first suction rod 82a and the second suction rod 82b on the other surface side of the tubular film F, respectively. A first suction rod 82a and a second suction rod 82b that suck one side of the tubular film F, and a third suction rod 82c and fourth that suck the other surface side of the tubular film F. When the suction rod 82d is separated from each other, the tubular film F folded into a sheet shape is opened.

  Delivery of the tubular film F from the take-up member 81 to the opener 82 and opening of the tubular film F are performed as follows. First, as shown in FIGS. 14A and 14B, the opener 82 waiting on the lower side of the take-up member 81 is moved to the take-up member 81 as shown in FIGS. The cylindrical film F sucked and held by the first suction rod 82a and the second suction rod 82b are raised to a position facing each other. At this time, a slight gap is formed between the tubular film F and the first suction rod 82a and the second suction rod 82b.

  Subsequently, after the first suction rod 82a and the second suction rod 82b suck and hold one surface side of the tubular film F, the suction operation by the take-up member 81 is released, and shown in FIGS. As described above, the take-up member 81 is retracted upward, whereby the delivery of the tubular film F from the take-up member 81 to the opener 82 is completed.

  Thereafter, as shown in FIGS. 5 (g) and (h), the third suction rod 82c and the fourth suction rod 82d of the opener 82 are rotated to suck the first suction rod 82a and the second suction rod 82b. After approaching the other surface side of the held tubular film F and sucking and holding the other surface side of the tubular film F, the first suction rod 82a, the second suction rod 82b, the third suction rod 82c, and the fourth By rotating the suction rod 82d away from each other, the tubular film F folded in a sheet shape is opened as shown in FIGS.

International Publication No. 2010/109535

  Thus, when the opener 82 opens the tubular film F after delivering the tubular film F from the take-up member 81 to the opener 82, the opener 82 receives the tubular film F from the take-up member 81. The third suction of the opener 82 from the time when the first suction rod 82a and the second suction rod 82b start to suck one surface side of the tubular film F until the opener 82 starts to open the tubular film F. Since the scissors 82c and the fourth suction scissors 82d have to perform a suction operation on the cylindrical film F, the first suction scissors 82a and the second suction scissors 82b start to suck one surface side of the tubular film F. After that, a sufficient time can be secured until the opener 82 starts to open the tubular film F. During this time, the first suction rod 82a and the second suction rod 82 are secured. It can reliably suck and hold the one side of the tubular film F.

  On the other hand, from the point in time when the third suction rod 82c and the fourth suction rod 82d of the opener 82 start to suck the other surface side of the tubular film F, the opener 82 starts to open the tubular film F. In order to increase the processing capability of the film-covering device without any other action, the third suction rod 82c and the fourth suction rod 82d begin to suck the other surface side of the tubular film F. After that, a sufficient time cannot be secured until the opener 82 starts to open the tubular film F, so that the third suction rod 82c and the fourth suction rod 82d are on the other side of the cylindrical film F. May not be reliably sucked and held.

  Thus, when the third suction rod 82c and the fourth suction rod 82d cannot reliably hold the other surface side of the tubular film F, the first suction rod 82 is opened to open the tubular film F. When the 82a and the second suction rod 82b, the third suction rod 82c and the fourth suction rod 82d are separated from each other, the tubular film F is detached from the third suction rod 82c and the fourth suction rod 82d, and the tubular shape There may be a problem that the film F cannot be opened.

  If the cylindrical film F is sucked and held in a state where it is completely sandwiched between the first suction rod 82a, the second suction rod 82b, the third suction rod 82c, and the fourth suction rod 82d, the third suction rod 82c and the second suction rod 82c Although the suction holding performance of the tubular film F by the four suction rods 82d is improved, the cylindrical film F is completely separated by the first suction rod 82a, the second suction rod 82b, the third suction rod 82c, and the fourth suction rod 82d. When the tubular film F is opened, the one surface side and the other surface side of the label L are hardly separated from each other when the tubular film F is opened, and the opening property of the tubular film F is hindered. The first suction rod 82a, the second suction rod 82b, the third suction rod 82c, and the fourth suction rod 82d cannot be completely sandwiched, and the first suction rod 82a, the second suction rod 82b, the third suction rod 82c, Between the fourth suction rod 82d, At present is that the extent of forced to open the gap that.

  Accordingly, an object of the present invention is to provide a film fitting apparatus that can reliably open a cylindrical film supplied in a folded state even in a case where the processing capacity is increased. is there.

In order to solve the above-mentioned problems, the invention according to claim 1 is characterized in that an opener receives a cylindrical film of a predetermined length supplied in a folded state in a sheet shape, and opens into a cylindrical shape to be fitted into a fitting body. The opener has a suction member that makes a pair of sucking and holding both surfaces of the tubular film, and one sucking member sucks and holds one surface of the tubular film, After the two suction members are relatively close to each other and the other suction member sucks and holds the other surface of the cylindrical film, the cylindrical film is opened by separating the suction members from each other. In a state where one suction member of the opener sucks and holds one surface of the tubular film, the two suction members approach relatively and the other suction member sucks and holds the other surface of the tubular film. both suction members are away from each other beginning That until just before, in the conveying path of the tubular film, by blowing air on the other side of the tubular film in an oblique direction toward the open end of the tubular film to its traveling direction, the tubular film It is provided with a pressing means for pressing the other surface of the second member against the other suction member.

The invention according to claim 2, the film to be fitted device of the invention according to claim 1, after the other suction members opener suction-holding the other side of the tubular film, both suction member starts to separate from each other Immediately before, it is characterized in that an impact applying means for applying an impact by bringing a convex portion into contact with the cut end of the tubular film in the conveyance path of the tubular film is provided.

As described above, in the film fitting apparatus according to the first aspect of the present invention, in the state where one suction member of the opener sucks and holds one surface of the tubular film, the two suction members relatively approach each other. after suction member of suction-holding the other side of the tubular film, until just before the two suction member starts to separate from each other, in the conveying path of the tubular film, the opening of the tubular film to the traveling direction Since there is a pressing means that presses the other surface of the tubular film against the other suction member by blowing air to the other surface side of the tubular film in an oblique direction toward the end, the other side of the opener After the suction member sucks and holds the other surface of the tubular film, the other suction member of the opener remains on the other surface of the tubular film even if the time between the suction members immediately before the suction members start to separate from each other is short. Surely suck and hold It is possible. Accordingly, when opening the tubular film, when the two suction members are separated from each other, the tubular film is hardly detached from the other suction member, and the tubular film can be opened reliably.

In addition, by cutting (pushing) a long tubular film folded into a sheet shape, for example, when forming a tubular film having a predetermined length in which a printed layer or the like is not formed at the cut end, the tubular shape If a primer layer such as medium ink is not formed on the inner surface of the film, the pressure may concentrate on the cut surface, and the cut portion may be crimped and become a pseudo-adhered state. after the other suction members opener suction-holding the other side of the tubular film, convex until just before the two suction member starts to separate from each other, the cut end of the tubular film in the conveying path of the tubular film Since the impact applying means for applying the impact by bringing the portion into contact is provided, when the long cylindrical film folded into a sheet is cut into a predetermined length, a pseudo-adhered state is present at the cut end of the cylindrical film. Departure Even when, by the impact of the impact imparting means imparts to the cut end of the tubular film, pseudo adhesion status of the cut end of the tubular film is released. Therefore, the cylindrical film can be easily opened by separating the suction members from each other, and the tubular film is difficult to come off from the suction member when the suction members are separated from each other. The openability of the is further improved.

It is a schematic perspective view which shows the label covering system by which the label covering apparatus which is one Embodiment of the film covering apparatus which concerns on this invention is mounted. It is a top view which shows a label covering system same as the above. It is a front view which shows a label covering system same as the above. It is a front view which shows the label supply apparatus which comprises the label covering system same as the above. It is a side view which shows a label supply apparatus same as the above. It is a side view which shows the label fitting head mounted in the label fitting apparatus same as the above. It is a front view which shows a label covering head same as the above. (A) is a schematic plan view showing a state in which a label folded into a sheet shape is sucked and held by a label opener mounted on the above-described label fitting head, and (b) is folded into a sheet shape by the same label opener. It is a schematic plan view which shows the state which opened the label. (A)-(j) is operation | movement explanatory drawing which shows the delivery operation | movement of the label between the take-up member of a label covering head same as the above, and a label opener. (A)-(h) is operation | movement explanatory drawing which shows the opening operation | movement of the label by a label opener same as the above. (A) is a top view which shows the impact provision means mounted in the label covering apparatus same as the above, (b) is a side view which shows the impact provision means same as the above. (A) is a top view which shows the pressing means mounted in the label covering apparatus same as the above, (b) is a side view which shows the pressing means same as the above. (A)-(f) is operation | movement explanatory drawing which shows opening operation | movement of a label at the time of mounting an impact provision means and a pressing means in the label covering apparatus provided with the label opener from which a form differs. (A)-(j) is operation | movement explanatory drawing which shows the delivery operation | movement of the cylindrical film from the take-up member to an opener in the conventional film covering apparatus, and opening operation of a cylindrical film. (A) is a schematic plan view showing a state in which the tubular film folded into a sheet shape is sucked and held by the above opener, and (b) is a state in which the tubular film folded into a sheet shape is opened by the above opener. It is a schematic plan view shown.

  Hereinafter, embodiments will be described with reference to the drawings. 1 to 3 show a cylindrical shrink label (hereinafter, referred to as a PET bottle (hereinafter referred to as a bottle) B) formed of a heat-shrinkable film having a thickness of 20 μm to 60 μm made of polyester resin, polystyrene resin, or the like. The label fitting system 1 for fitting L is shown. The label covering system 1 includes a bottle supply device 2 including a belt conveyor 6, screws 2a and 2b, and a star wheel 2c, and a long label formed by a substrate supply unit (not shown). The label L is formed while sequentially cutting the base material M, the label supply device 3 for sequentially supplying the label L to the label supply position α, and the bottle B supplied from the bottle supply unit 2 at the bottle supply position β is received. The label L is received from the label supply device 3 at the label supply position α, and the label L is applied to the bottle B while the bottle B is transported from the bottle supply position β to the bottle delivery position γ. A rotary type label fitting device 4 to be fitted, and a bot for carrying out the bottle B in which the label L is fitted by the label fitting device 4 The bottle unloading device 5 is configured to receive the bottle delivery unit including the belt conveyor 6 and the bottle B into which the label L is inserted between the label fitting device 4 and the bottle delivery unit. It is comprised from the bottle delivery unit 5a to deliver.

  As shown in FIGS. 4 and 5, the label supply device 3 continuously drives a long label-forming substrate M fed from a substrate roll by a substrate feeding unit (not shown). 11a and a label base material sending unit 11 comprising a driven roller 11b sandwiching a label forming base material M folded into a sheet between the driving roller 11a and a label forming material sent by the label base material sending unit 11. A press-cut type label base material cutting unit 12 composed of a fixed blade 12a and a rotary blade 12b fixedly installed at a base material cutting position for sequentially cutting the base material M at a predetermined cut pitch, and the label base material cutting unit 12 The upstream bell that sequentially conveys the label L formed by being cut to the label supply position α in a state where one side of the label L is sucked and held by the belt. And a transfer unit 13 and the downstream belt conveying unit 16.

  As shown in FIGS. 4 and 5, the upstream belt conveyance unit 13 is stretched between a guide roller 13 a and a drive pulley 13 b disposed near the base material cutting position and near the label supply position α, Two feed belts formed with a plurality of suction holes 13d formed at regular intervals that circulate between the vicinity of the base material cutting position and the vicinity of the label supply position α at a speed faster than the supply speed of the label forming base material M. 13c, 13c, a suction part 14 for sucking and holding the label L on the two feed belts 13c, 13c, and feeding by the suction part 14 by sequentially bringing the label L into close contact with the feed belts 13c, 13c from the lower end to the upper end. Opposite the feed belts 13c and 13c across the conveyance line of the label L, which assists the sucking and holding operation of the label L to the belts 13c and 13c. As shown in FIG. 4, the suction assisting means 15 includes three guide rollers 15a and a drive pulley 15b, and a belt 15c stretched over them. It is composed of

  The downstream belt conveyance unit 16 is stretched over two guide rollers 16a and a drive pulley 16b disposed above and below across the label supply position α, and circulates between the upper and lower sides of the label supply position α. 16d is formed with a single feed belt 16c formed at regular intervals, and a suction part 17 for sucking and holding the label L on the feed belt 16c. The detection timing of the label L by the label detection sensor 18 If there is a deviation, the label L is conveyed while correcting the deviation in the supply timing of the label L due to the deviation in the label L by adjusting the moving speed of the feed belt 16c based on the deviation amount. Finally, the label L is always stopped at the label supply position α at an appropriate supply timing.

  As shown in FIGS. 1, 2, 6, and 7, the label fitting device 4 is placed on a support disk 4a attached to a rotating shaft (not shown) on a concentric circle centering on the rotating shaft. A large number of label-fitting heads 20 erected at regular intervals are provided, and each label-fitting head 20 opens a cylindrical label L folded into a sheet shape received at the label supply position α. The opened label L is fitted on the body of the bottle B while the bottle B received at the bottle supply position β is being conveyed to the bottle delivery position γ.

  The label fitting head 20 sucks the bottom of the bottle mounting table 31 mounted on the bottle mounting table 31 and the bottle mounting table 31 on which the bottle B received at the bottle supply position β is fixed. As a result, the bottle holding unit 30 having suction means (not shown) for holding the bottle B on the bottle mounting table 31 and the label supplied to the label supply position α are received via the label delivery unit 40 to form a cylindrical shape. And a label opener 50 for fitting the opened label L to the body of the bottle B. The label delivery unit 40 and the label opener 50 are plate-like erected on the support disk 4a. It moves up and down along a slide rail 22 fixed to the support frame 21.

  As shown in FIGS. 6 and 7, the label delivery unit 40 is moved up and down along the slide rail 22 and has a pair of suction rods 42 and 42 in which a plurality of suction holes 42 a are formed on the top and bottom. And a cam mechanism 43 that raises and lowers the take-up member 41. The cam mechanism 43 includes a cam follower 43a connected to the take-up member 41 via a support member, and a label cover in which the cam follower 43a is fitted. The cam groove 43b is formed in the cylindrical body 4b fixedly installed inside the head 20.

  As shown in FIG. 5, the distance between the pair of suction rods 42, 42 is set so that it can pass outside the feed belt 16 c of the downstream belt conveyance unit 16 of the label supply device 3 at the label supply position α. 3 to 5, when the suction rods 42 of the take-up member 41 rotating together with the label fitting head 20 pass through the label supply position α, the label supply device 3 The label L supplied while being sucked and held by the feed belt 16c is received by being hooked, and one side of the label L is sucked and held.

  As shown in FIGS. 6 to 8, the label opener 50 includes a main unit 51 that moves up and down along the slide rail 22 fixed to the support frame 21, and a cam mechanism 58 that moves the main unit 51 up and down. Yes.

  As shown in FIGS. 6 to 8, the main body unit 51 is supported by an annular base member 52 having an opening at the center and a base member 52 so as to be openable and closable so as to face each other. Opening and closing arms 53 and 53 and opening and closing arms 54 and 54 which are formed and have a tip bent inwardly, and the lower side attached to the lower surface of the tip of each opening and closing arm 53, 53, 54 and 54. First to fourth suction rods 55 (55A, 55B, 55C, and 55D) extending in the direction of the cylinder, and a pair of opening and closing arms 53 and 53 and an opening and closing mechanism 56 that opens and closes the opening and closing arms 54 and 54. The first to fourth suction rods 55 (55A, 55B, 55C, 55D) are connected to the suction paths of the open / close arms 53, 53, 54, 54 as shown in FIGS. 8 (a) and 8 (b). Suction path 55a and this Communicates with 引路 55a, and has a plurality of suction holes 55b which are open on one side is a label holding surface. The take-up member 41 constituting the label delivery unit 40 described above can be moved relative to the vertical position of the base member 52 through the opening of the base member 52. As shown in FIGS. 6 and 7, the opening / closing mechanism 56 includes a cam follower 57a and a cam groove 57b formed in the cylindrical body 4b fixedly installed on the inner side of the label fitted head 20 into which the cam follower 57a is fitted. The cam follower 57a moves up and down along the cam groove 57b, so that the open / close arms 53 and 53 and the open and close arms 54 and 54 open and close at a predetermined timing according to the lift operation. It is like that.

  As shown in FIG. 8A, the first to fourth suction rods 55 (55A, 55B, 55C, 55D) are connected to the first suction rod 55A attached to one of the open / close arms 53, 53 and the second suction rod 55A. The one surface side of the label L folded into a sheet shape with the suction rod 55B is sucked and held at a predetermined interval, and the third suction rod 55C and the fourth suction rod attached to the other opening / closing arm 54, 54 From the state where the other side of the label L folded into a sheet shape with 55D is sucked and held at a predetermined interval, as shown in FIG. 5B, paired opening / closing arms 53 and 53 and an opening / closing arm 54 , 54 is rotated, the first suction rod 55A and the second suction rod 55B holding and holding the one surface side of the label L, and the third suction holding and holding the other surface side of the label L are sucked and held. The flange 55C and the fourth suction flange 55D are separated from each other, Le L is adapted to be largely opened than the body portion of the bottle B.

  As shown in FIGS. 6 and 7, the cam mechanism 58 for raising and lowering the main body unit 51 is fixedly installed on the inner side of the label fitting head 20 into which the cam follower 58a attached to the base member 52 and the cam follower 58a are fitted. The cam follower 58a moves up and down along the cam groove 58b so that the body unit 51 attached to the base member 52 moves up and down. ing.

  Next, the label L in a state in which the take-up member 41 of the label delivery unit 40 is folded into a sheet received from the label supply device 3 is used as the first to fourth suction rods 55 (55A, 55B, 55C and 55D) will be described with reference to FIG. 9 and FIG. When the take-up member 41 receives the label L in a state of being folded into a sheet shape, the label opener 50 is retracted to the lower side of the take-up member 41 as shown in FIGS. As shown in FIGS. 5C and 5D, the label opener 50 gradually rises, and as shown in FIGS. 5E and 5F, the first suction rod 55A and the first The suction rod 55B of No. 2 and the label L are raised to a position facing each other and stopped. At this time, a slight gap is formed between the first suction rod 55A and the second suction rod 55B and the label L.

  In this manner, when the first suction rod 55A and the second suction rod 55B and the label L face each other, the first suction rod 55A and the second suction rod 55B start the suction operation, and the label L After sucking and holding the one surface side, the take-up member 41 stops the suction operation, whereby the label L is delivered from the take-up member 41 to the first suction rod 55A and the second suction rod 55B. At this time, a slight gap is formed between the take-up member 41 and the label L. The label opener 50 and the take-up member 41 are moved from left to right as indicated by arrows in FIGS. 9 and 10, and the first suction rod 55 A and the first suction rod 55 A that have received the label L from the take-up member 41. The second suction rod 55B is located on the downstream side in the moving direction of the label opener 50.

  In this way, when the label L is delivered from the take-up member 41 to the first suction rod 55A and the second suction rod 55B, as shown in FIGS. Ascending, as shown in FIGS. 6 (i) and (j), it is retracted above the label opener 50.

  When the take-up member 41 is retracted above the label opener 50 as shown in FIGS. 10A and 10B, the other open / close arms 54 and 54 are shown in FIGS. 10C and 10D. , The third suction rod 55C and the fourth suction rod 55D approach the other surface side of the label L, and suck and hold the other surface side of the label L.

  Subsequently, by turning the pair of opening / closing arms 53, 53 and the opening / closing arms 54, 54 in the reverse direction, as shown in FIGS. The second suction rod 55B, the third suction rod 55C, and the fourth suction rod 55D are separated from each other, and the label L is in a predetermined state as shown in FIGS. Opened.

  The operation from the delivery of the label L to the opening is performed while the label fitting head 20 rotates and moves together with the support disk 4a. The movement path of the label fitting head 20 is as shown in FIG. In addition, the label opener 50 sucks and holds both surfaces of the label L in a folded state, that is, the first suction rod 55A and the second suction rod 55B suck and hold one surface side of the label L. At the same time, the first suction rod 55A and the second suction rod 55B are opened to open the label L from the state in which the third suction rod 55C and the fourth suction rod 55D suck and hold the other surface side of the label L. Until the third suction rod 55C and the fourth suction rod 55D start to separate from each other (see FIGS. 10C and 10D), an impact is applied to the lower end portion of the label L. The impact applying means 60 and the first suction A pressing means 70 that presses the other surface of the label L against the third suction rod 55C and the fourth suction rod 55D that sucks and holds the label L after the flange 55A and the second suction rod 55B is disposed. After the impact is applied to the lower end portion of the label L by the impact applying means 60, the other surface side of the label L is pressed against the third suction rod 55C and the fourth suction rod 55D by the pressing means 70. It is like that.

  As shown in FIGS. 11A and 11B, the impact applying means 60 includes a first suction rod 55A and a third suction rod 55C in the width direction of the label L folded in a sheet shape, and a second suction rod 55C. A plurality of convex portions 61 disposed at regular intervals between the suction rod 55B and the fourth suction rod 55D are arranged in three rows in the traveling direction of the label L, and the lower end portion of the label L is convex. The impact is applied to the lower end portion of the label L by abutting on the portion 61 and moving over the portion 61, and this occurs when the label base material is cut by the label base material cutting unit 12. The pseudo adhesion state of the lower end portion of the label L is released. In FIG. 5B, the fourth suction rod 55D is omitted and only the label L is shown in order to show the state in which the lower end portion of the label L passing through the impact applying means 60 abuts the convex portion 61. It is indicated by a two-dot chain line.

  The convex portion 61 binds a resin binding member having a width of 3 to 6 mm at a pitch of 5 to 10 mm to a bar 62 extending in the width direction of the label L and supported at one end side below the moving path of the label L. However, it is formed by cutting the unnecessary portion, and rises from the lower end edge of the label L by about 3 to 6 mm while being inclined obliquely forward in the traveling direction of the label L. Thus, since the convex part 61 is arrange | positioned at 5-10 mm pitch, while being able to give an impact to the lower end part of the label L with few resistances, it inclines diagonally forward of the advancing direction of the label L. As a result, an unnecessarily large impact is not applied to the label L, and the label L is not displaced relative to the suction rod 55.

  As shown in FIGS. 12A and 12B, the pressing means 70 includes an air blowing nozzle 71 connected to an air supply means (not shown) from the lower side of the label L to the upstream side in the traveling direction of the label L. An air flow is formed by blowing air obliquely upward toward the upper side, and when the label L breaks through this air flow, the label L moves upstream in the traveling direction, that is, the third suction rod 55C. And the other side of the label L is reliably sucked and held by the third suction rod 55C and the fourth suction rod 55D.

  In particular, in this label fitting apparatus 4, as described above, after the pseudo-adhered state of the lower end portion of the label L is released by the impact applying means 60, the nozzle 71 of the pressing means 70 moves from the lower side of the label L to the label L Since air is blown obliquely upward toward the upstream side in the traveling direction of the air, air enters the inside of the label L from the lower end of the label L released from the pseudo-adhered state, and the first suction rod One side of the label L sucked and held by the 55A and the second suction rod 55B is pressed against the first suction rod 55A and the second suction rod 55B, and the third suction rod 55C and the fourth suction rod Since the other surface side of the label L sucked and held by 55D is pressed against the third suction rod 55C and the fourth suction rod 55D, the other surface side of the label L is the third suction rod 55C and the fourth suction rod. By 55D Not only is surely sucked and held, the effect is obtained that the suction holding force of the label L by the first suction rod 55A and the second suction rod 55B is improved.

  As described above, in the film fitting apparatus 4, the third suction rod 55C and the fourth suction rod 55D of the label opener 50 suck and hold the other surface side of the label L, and then make a pair. During the time until the flange 55A and the second suction rod 55B and the third suction rod 55C and the fourth suction rod 55D are separated from each other, the pressing means 70 applies the third suction to the other side of the label L. Since the flange 55C and the fourth suction rod 55D are pressed against each other, the third suction rod 55C and the fourth suction rod 55D suck and hold the other side of the label L, and then make a pair. Even if the time until the suction rod 55A and the second suction rod 55B and the third suction rod 55C and the fourth suction rod 55D are separated from each other is short, the third suction rod 55C and the fourth suction rod 55C The suction rod 55D can reliably suck and hold the other side of the label L. .

  Accordingly, when the first suction rod 55A and the second suction rod 55B and the third suction rod 55C and the fourth suction rod 55D that make a pair are separated from each other to open the label L, Since the label L is unlikely to be removed from the suction rod 55C and the fourth suction rod 55D and the label L can be reliably opened, the processing capability of the film fitting apparatus 4 can be improved.

  Moreover, in this film covering apparatus 4, since the impact provision means 60 gives the impact to the lower end part of the label L, the pseudo-adhesion state of the lower end part of the label L is canceled, so that a pair is formed. When the label L is opened by separating the first suction rod 55A and the second suction rod 55B, the third suction rod 55C and the fourth suction rod 55D from each other, the label L can be easily opened. At the same time, when the label opener 50 opens the label L, the label L is unlikely to be removed from the first suction rod 55A, the second suction rod 55B, the third suction rod 55C, and the fourth suction rod 55D. The opening of the label L is further improved.

  In the above-described embodiment, the label opener 50 that sucks and holds two positions in the width direction of the label L folded into a sheet shape by the four suction rods 55A to 55D is used. For example, as shown in FIG. 13, the impact applying means 60 of the present invention is also adopted when a label opener 50a that opens the label L by a pair of swingable arms 51A and 51B that can be opened and closed is used. Or the pressing means 70 can be employed.

  The swinging arms 51A and 51B are provided with comb-like suction portions 52A and 52B for sucking and holding the film F supplied in a folded state in a state of being folded on the respective distal ends. ) And (b), a label L folded into a sheet conveyed with one side sucked and held by a comb-like take-up member (not shown) is sucked by one swinging arm 51A. After receiving the part 52A and sucking and holding one side of the label L, the suction part 52B of the other swinging arm 51B approaches the label L as shown in FIGS. The other side of the label L is sucked and held, and then the label L is opened in a cylindrical shape by opening the pair of swing arms 51A and 51B as shown in FIGS. It has become.

  Therefore, as shown in FIGS. 4C and 4D, the label opener 50a sucks and holds both sides of the label L in a folded state, that is, the pair of swing arms 51A and 51B. In order to open the label L from the state in which the suction portions 52A and 52B suck and hold both sides of the label L, the impact is applied to the lower end portion of the label L immediately before the pair of swinging arms 51A and 51B starts to open. The impact applying means 60 to be applied, and the third suction rod 55C and the fourth suction rod 55D that hold the label L after the first suction rod 55A and the second suction rod 55B are placed on the other side of the label L. A pressing means 70 for pressing the surface is disposed. After an impact is applied to the lower end portion of the label L by the impact applying means 60, the other surface side of the label L is moved by the pressing means 70 on the swing arm 51B. Suction part 52 So that the pressing in.

  In contrast to the label opener 50 described above, the label opener 50a is configured such that the swing arm 51A located on the upstream side in the moving direction receives the label L from the take-up member. In order to press the label L against the suction portion 52B of the swing arm 51B located on the downstream side in the moving direction of the air, the air blowing nozzle 71 moves from the lower side of the label L toward the downstream side in the traveling direction of the label L. The air is blown diagonally upward.

  Further, in the above-described embodiment, the impact applying means 60 in which the plurality of convex portions 61 are arranged at regular intervals in the width direction of the label L folded in a sheet shape is employed, but the present invention is not limited to this. Instead, it is also possible to employ a plate-like convex portion that continuously abuts in the width direction of the label L.

  Further, in the impact applying means 60 described above, the impact is applied three times to the same portion of the lower end edge of the label L, but the number of times of applying the impact is not limited to three times, and can be set as appropriate. That's fine.

  In the above-described embodiment, the impact is applied to the lower end edge of the label L by the impact applying means 60. However, the present invention is not limited to this, and an impact is applied to the upper end edge of the label L. An impact may be applied to both the upper edge and the lower edge.

  Further, in the above-described embodiment, the air blowing nozzle 71 blows air obliquely upward from the lower side of the label L toward the upstream side in the traveling direction of the label L, thereby forming the air flow. When L cuts through, the label L is pressed against the third suction rod 55C and the fourth suction rod 55D positioned upstream in the traveling direction, and the suction portion 52A of the swing arm 51A. However, the present invention is not limited to this. Air is blown obliquely downward from above the transport path of the label L toward the upstream side in the traveling direction of the label L, or the label L from above the transport path of the label L. The air is blown obliquely downward toward the upstream side in the traveling direction of the label L, and the air is blown obliquely upward from the lower side of the transport path of the label L toward the upstream side in the traveling direction of the label L. It may be.

  Further, in each of the above-described embodiments, the label L is pressed against the third suction rod 55C and the fourth suction rod 55D or the suction portion 52A of the swing arm 51A by air, but the present invention is not limited to this. For example, a plurality of elongate flexible string members are arranged at predetermined intervals at positions where the third suction rod 55C and the fourth suction rod 55D of the label L and the suction portion 52A of the swing arm 51A are not in contact with each other. When the label L passes through the hanging position of the string member, the string member pulls the label L to the third suction rod 55C and the fourth suction rod 55D or the swing arm 51A. You may make it press on the part 52A.

  In each of the embodiments described above, the third suction rod 55C and the fourth suction rod are pressed by the pressing means 70 after the pseudo-adhered state is released by applying an impact to the lower edge of the label by the impact applying means 60. In order to press the label L against 55D and the suction part 52A of the swing arm 51A, the impact applying means 60 is disposed on the upstream side in the conveyance direction of the label L, and the pressing means 70 is disposed on the downstream side. In addition, the pressing means 70 may be arranged on the upstream side in the conveyance direction of the label L, and the impact applying means 60 may be arranged on the downstream side.

  Moreover, in embodiment mentioned above, although the label fitting apparatus for fitting the cylindrical label L to the trunk | drum of the bottle B was demonstrated, it is not limited to this, This invention is a cylindrical shape. Needless to say, the present invention can be applied to a case where the film is fitted to various fitting objects.

  INDUSTRIAL APPLICATION This invention can be utilized when opening the cylindrical film of the state folded by the sheet form, and fitting to a to-be-fitted body.

DESCRIPTION OF SYMBOLS 1 Label fitting system 2 Bottle supply apparatus 3 Label supply apparatus 4 Label fitting apparatus (film fitting apparatus)
4a Support disk 4b Cylindrical body 5 Bottle unloading device 6 Belt conveyor 11 Label base material delivery unit 12 Label base material cutting unit 13 Upstream belt transport unit 16 Downstream belt transport unit 18 Label detection sensor 20 Label fitting head 21 Support frame 22 Slide rail 30 Bottle holding unit 31 Bottle mounting table 40 Label delivery unit 41 Take-up member 42 Suction rod 42a Suction hole 43 Cam mechanism 43a Cam follower 43b Cam groove 50, 50a Label opener (opener)
51 Main unit 51A, 51B Swing arm 52 Base member 52A, 52B Suction part (suction member)
53, 54 Opening / closing arm 55 Suction rod 55a Suction path 55b Suction hole 55A First suction rod (suction member)
55B Second suction rod (suction member)
55C Third suction rod (suction member)
55D Fourth suction rod (suction member)
56 Opening / closing mechanism 57, 58 Cam mechanism 57a, 58a Cam follower 57b, 58b Cam groove 60 Impact applying means 61 Convex part 62 Bar 70 Pushing means 71 Air blowing nozzle B PET bottle (covered body)
L Shrink label (tubular film)
M label forming substrate

Claims (2)

A film fitting device in which an opener receives a cylindrical film of a predetermined length supplied in a folded state in a sheet shape, opens in a cylindrical shape, and fits on a fitting body,
The opener has a pair of suction members that suck and hold both surfaces of the tubular film, and the suction members are relatively close to each other with one suction member sucking and holding one surface of the tubular film. After the other suction member sucks and holds the other surface of the tubular film, the tubular film is opened by separating the suction members from each other.
With one suction member of the opener sucking and holding one surface of the tubular film, both suction members approach relatively and the other suction member sucks and holds the other surface of the tubular film. until immediately before the suction member starts to separate from each other, in the conveying path of the tubular film, the air on the other side of the tubular film in an oblique direction toward the open end of the tubular film to the traveling direction A film fitting apparatus comprising a pressing means for pressing the other surface of the tubular film against the other suction member by blowing . After the other suction members opener suction-holding the other side of the tubular film, convex until just before the two suction member starts to separate from each other, the cut end of the tubular film in the conveying path of the tubular film The film covering apparatus according to claim 1, further comprising impact applying means for applying an impact by bringing the part into contact .

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