JP5553925B2 - Film fitting system - Google Patents

Description

  This invention is equipped with, for example, a film opener that opens a tubular film such as a shrink label or a stretch label supplied in a folded state in a sheet shape so as to fit in a fitting object such as a bottle or a bottle. It is related with the made film covering system.

  For example, in a film-covering device that covers a tubular film such as a shrink label on the outer peripheral surface of a body such as a bottle or bottle, usually, by cutting a long strip-shaped tubular film folded into a sheet shape Since the formed cylindrical film (label) of a predetermined length is sequentially supplied, the predetermined length of the cylindrical film supplied in a state of being folded into a sheet is attached to such a film-fitting device. A film opener for opening the film is installed.

  Examples of such a film opener include those shown in FIG. 21 and FIG. As shown in the figure, the film opener 90 includes a pair of swing arms 91, 91 that can be opened and closed, and an opening / closing drive means 95 that opens and closes the swing arms 91, 91. , 91 are provided with gripping portions 92, 92 for gripping the film F supplied in a state of being folded into a sheet shape on the respective leading end sides.

  The grips 92 and 92 can grip the bases 93 and 93 formed with a common suction path connected to suction means (not shown) and the vicinity of both ends of a plurality of types of films F having different lengths. The gripping arms 94, 94 are provided with a plurality of gripping arms 94, 94 respectively provided above and below the bases 93, 93. The gripping arms 94, 94 have suction holes 94a, 94a formed on their gripping surfaces. Through the common suction path of the bases 93, 93.

  Therefore, after receiving the film F supplied in a folded state in a sheet shape by the gripping portions 92 and 92 of the swinging arms 91 and 91 as shown in FIG. When both sides of the film F are separated from each other by opening the swinging arms 91 and 91 in a state where both sides of the film F are sucked and held by the gripping arms 94 and 94 by operating the As shown, the film F opens in a cylindrical shape.

JP-A-60-220733 JP 2003-237750 A

  By the way, as a method of fitting the film F opened by such a film opener into a body portion of a bottle container or the like, the bottle container or the like is raised from the lower side with the film opened by the film opener. The direct method of directly inserting a bottle container or the like into the film, and a mandrel having four parasol-shaped opening / closing rods 101 on the film F opened by the film opener 90 as shown in FIGS. By inserting a shaping member such as 100, the shape of the opening of the film F is once shaped to be close to the shape of the body of the bottle container BC or the like by such a shaping member, and then the film F thus shaped is used as a carrier. It is positioned below the mandrel 100 by being pushed down from the mandrel 100 by the plate 110 or the like. And that bottle BC like there is an indirect method of fitting the to.

  In the direct method in which the film opened by the film opener is directly fitted into a bottle container or the like, the film is not delivered until the film is fitted into the bottle container or the like after being opened by the film opener. Although there is an advantage that the position does not easily shift, as described above, after the film F is sucked and gripped by the gripping portions 92 and 92 at the front end, only by opening the pair of swingable arms 91 and 91 that can be opened and closed, FIG. As shown in b), the film F cannot be opened in a state close to the body shape of the fitted body, and when the bottle container BC or the like is inserted into the opened film F, the shoulder of the bottle container or the like is Since it contacts the lower end of the film, there is a problem that it cannot be smoothly and reliably fitted into the bottle container BC or the like. In particular, since the thin film F does not have a low waist, it will become sagging when it comes into contact with the bottle container BC or the like, and such a problem will appear remarkably.

  On the other hand, in the indirect system described above, the film F opened by the film opener 90 is fitted into the bottle container BC or the like in a state of being shaped by the mandrel 100 into a shape close to the body shape of the bottle container BC or the like. Although the lower end of the film F is unlikely to come into contact with the bottle container BC or the like, since a shaping mechanism such as the mandrel 100 is necessary, there is a problem that the film fitting apparatus is enlarged and the number of parts is increased. Further, since the thin film F having a thickness of 20 μm to 40 μm (particularly 20 μm to 30 μm) has no waist, when the shaped film F is pushed down from the mandrel 100 by the carrier plate 110 or the like, the film F is sagged, There is also a problem that it cannot be smoothly and reliably fitted into the bottle container BC or the like. Specifically, only about 40 μm of polyethylene terephthalate film (PET film) and about 50 μm of polystyrene stretched film (OPS film) could be handled.

  Then, the subject of this invention is providing the film fitting system which can be fitted to a to-be-fitted body smoothly and reliably even if it is a thin cylindrical film.

  In order to solve the above-mentioned problems, the invention according to claim 1 is a film supply of a fitted body supply device that feeds a fitted body to a fitted body supply position, and a tubular film that is folded into a sheet shape. The film supply device that supplies the film and the object to be supplied supplied by the object supply device are received at the object supply position and conveyed to the object delivery position, while the film supplied by the film supply device is the film. A rotary-type film-fitting device that fits a film on a fitting body while receiving it at the supply position and transporting the fitting body from the fitting-substance supply position to the fitting-subject delivery position, and a film by the film fitting device And a film covering device for unloading the member to which the film is fitted, and the film covering device includes a plurality of film fitting heads mounted on a concentric circle around the rotation axis at regular intervals. Each film fitting head is provided with a film opener that opens a tubular film that is supplied in a folded state into a sheet shape and is fitted on the fitting body, and is supplied by a film supply device. A film delivery unit that receives the film at the film supply position and delivers it to the film opener is mounted so as to be able to move up and down, and the film opener is configured so that one side of the film folded in a sheet shape is predetermined in the width direction. The first suction rod and the second suction rod, each extending in the length direction of the film, and the positions corresponding to the first suction rod and the second suction rod on the other surface side of the film are sucked at intervals. , Each having a third suction rod and a fourth suction rod extending in the length direction of the film, and sucking one side of the film The first and second suction rods and the third and fourth suction rods sucking the other side of the film are separated from each other, thereby opening the film folded in a sheet shape. When the film is opened, the suction hole of the first suction rod and the suction hole of the fourth suction rod are opposed to each other, and the suction hole of the second suction rod and the suction hole of the third suction rod are opposed to each other. The film delivery unit includes a take-up member that sucks and holds one side of the film supplied to the film supply position. The take-up member includes a first suction rod and a second suction rod, and a third In a state where the suction rod and the fourth suction rod are separated from each other, the first suction rod and the second suction rod and the third suction rod and the fourth suction rod are configured to enter or pass from above or below. Providing a film-covering system It is.

  The invention according to claim 2 is the film fitting system according to claim 1, wherein the suction hole of the first suction rod, the suction hole of the second suction rod, and the third suction rod of the third suction rod constituting the film opener. The suction holes and the suction holes of the fourth suction rod are characterized by being arranged in a row in the length direction of each suction rod.

  The invention according to claim 3 is the film fitting system according to claim 1 or 2, wherein each of the first suction rod, the second suction rod, the third suction rod, and the fourth suction rod is pivoted at one end. The opening / closing arm that supports the first suction rod and the opening / closing arm that supports the third suction rod rotate in opposite directions to each other. Accordingly, the first suction rod and the third suction rod approach and separate on a circular path passing through the film gripping position and the film opening position, and the open / close arm that supports the second suction rod, and the fourth suction rod. The second suction rod and the fourth suction rod approach and separate on a circular orbit passing through the film gripping position and the film opening position by rotating the opening / closing arm supporting the film in opposite directions. It is characterized by being configured.

  The invention according to claim 4 is the film fitting system according to claim 1, 2, or 3, wherein the film opener takes the first suction rod and the second suction rod or the third suction rod and the fourth suction rod. A film is sandwiched and held between the up member and the take-up member is configured to receive the film from the take-up member by releasing the suction of the film.

  According to a fifth aspect of the present invention, in the film fitting system according to the fourth aspect, when the take-up member receives the film, the film opener is retracted to the lower side of the take-up member, and the film opener is the take-up member. When the film received from is opened and fitted to the fitting body, the take-up member is configured to be retracted to a position above the film opener.

  The invention according to claim 6 is the film covering system according to claim 1, 2, 3, 4 or 5, wherein the film opener is lowered in a state where the film is opened, whereby the film is covered on the object to be fitted. It is characterized by being configured to fit.

  As described above, in the film fitting system according to the first aspect of the present invention, each film fitting head is sucked with one side of the film folded into a sheet shape at a predetermined interval in the width direction. The first suction rod and the second suction rod extending in the length direction of the film, respectively, and the positions corresponding to the first suction rod and the second suction rod on the other surface side of the film are sucked, respectively. A third suction rod and a fourth suction rod that extend in the length direction are provided, and a first suction rod and a second suction rod that suck one side of the film, and a third that sucks the other side of the film. The suction holes of the first suction rod and the suction holes of the fourth suction rod face each other when the film folded in a sheet shape is opened by separating the suction rod and the fourth suction rod. And the suction hole of the second suction rod and the second Since the film opener configured so as to face the suction hole of the suction rod is mounted, the film can be opened neatly in a state close to the cylindrical shape of the cylindrical or rectangular tube fitting . Therefore, when inserting the fitting object into the film opened by the direct method or fitting the opened film to the fitting object, the fitting object hardly touches the film and is a tight and thin film. However, it can be smoothly and reliably fitted to the fitted body.

  In this way, even when handling thin films, it is possible to adopt the direct method, and it is not necessary to provide a shaping mechanism such as a mandrel necessary for the indirect method, so the entire film fitting apparatus can be made compact. can do.

  Particularly, in this film fitting system, a film delivery unit having a take-up member that receives a film supplied by a film supply device at a film supply position and delivers it to a film opener can be moved up and down to each film fitting head. Since it is mounted, when the take-up member enters or passes from above or below between the suction rods that are separated from each other, the film can be delivered stably from the film delivery unit to the film opener. When the film is delivered from the film delivery unit to the film opener, the film is hardly displaced.

It is a schematic perspective view which shows the label covering system which is one Embodiment of the film covering system which concerns on this invention. 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 covering head mounted in the label covering apparatus which comprises the label covering system same as the above. It is a front view which shows a label covering head same as the above. It is sectional drawing along the XX line of FIG. It is sectional drawing along the YY line of FIG. (A) is a front view which shows the label delivery unit mounted in the label fitting head same as the above, (b) is a side view which shows a label delivery unit same as the above. (A) is a front view which shows the label opener mounted in the label fitting head same as the above, (b) is a side view which shows a label opener same as the above. (A), (b) is a side view which shows the suction rod which comprises the label opener same as the above. 12A is a cross-sectional view taken along the line VV in FIG. 12A, FIG. 12B is a cross-sectional view taken along the line WW in FIG. 12A, and FIG. The side view which shows the base pipe which is doing, (d), (e) is a side view which shows the outer pipe which comprises the suction rod same as the above. (A) is a top view which shows the state which hold | gripped the label folded by the label opener same as the above, (b) is a top view which shows the state which opened the label folded by the label opener same as the above is there. (A) is a plan view showing a state in which a label folded in a sheet shape is gripped by different suction holding surfaces of the above label opener, and (b) is a state in which the label folded in the sheet shape is opened by the above label opener. FIG. (A)-(h) is a perspective view which shows the fitting operation | movement of the label by the label fitting head same as the above. (A), (c) is a front view which shows the label fitting operation | movement by the label fitting head same as the above, (b), (d) is a top view which shows the label fitting operation by the label fitting head same as the above. is there. (A), (c) is a front view which shows the label fitting operation | movement by the label fitting head same as the above, (b), (d) is a top view which shows the label fitting operation by the label fitting head same as the above. is there. (A), (c) is a front view which shows the label fitting operation | movement by the label fitting head same as the above, (b), (d) is a top view which shows the label fitting operation by the label fitting head same as the above. is there. (A), (c) is a front view which shows the label fitting operation | movement by the label fitting head same as the above, (b), (d) is a top view which shows the label fitting operation by the label fitting head same as the above. is there. It is a side view which shows the conventional film opener. (A) is a top view which shows the state which hold | gripped the film with the film opener same as the above, (b) is a top view which shows the state which opened the film with the film opener same as the above. (A)-(c) is the schematic which shows the direct system which inserts the film opened by the film opener same as the above into a bottle container etc. directly.

  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 feeds a long label-forming substrate M fed from a substrate roll by a substrate feeding unit (not shown). A label base material feeding unit 11 comprising a driving roller 11a driven by a servo motor and a driven roller 11b sandwiching a label forming base material M folded in a sheet shape between the driving roller 11a and the label base material feeding unit. A label comprising a fixed blade 12a fixedly installed at a substrate cutting position and a rotary blade 12b driven to rotate by an independent servo motor, which sequentially cuts the label-forming substrate M delivered by the unit 11 at a predetermined cut pitch. The substrate cutting unit 12 and the label L formed by being cut by the label substrate cutting unit 12 And a upstream belt conveying unit 13 and the downstream belt conveying unit 16 sequentially conveyed to alpha.

  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 13c, 13c that circulate and move between the vicinity of the substrate cutting position and the position near the label supply position α at a speed faster than the supply speed of the label forming substrate M, and the two feed belts 13c , 13c sucks and holds the label L, and the label L is brought into close contact with the feed belts 13c and 13c from the lower end to the upper end in order to suck and hold the label L on the feed belts 13c and 13c. And the driving pulley 13b is rotationally driven by an independent servo motor. It has become.

  As shown in FIG. 5, the feed belts 13c and 13c are arranged in parallel at a distance narrower than the width of the label L to be conveyed, and each of the feed belts 13c and 13c has a central portion in the width direction. A large number of suction holes 13ch are formed at regular intervals along the longitudinal direction.

  As shown in FIG. 4, the suction mechanism 14 includes suction chambers 14a and 14a disposed along the feed belts 13c and 13c between the guide rollers 13a, tubes not shown in the suction chambers 14a and 14a, and the like. And a suction device (not shown) such as a vacuum pump connected via the suction port, and suction ports are opened on the contact surfaces of the suction chambers 14a and 14a with the feed belt 13c.

  As shown in FIG. 4, the suction assisting means 15 is provided so as to face the feed belts 13c and 13c across the conveyance line of the label L, and includes three guide rollers 15a and a drive pulley 15b. The belt 15c is stretched over these belts. The drive pulley 15b is driven by a servo motor that circulates and moves each of the above-described feed belts 13c, and the drive pulley so that the belt 15c circulates at the same speed as the movement speed of the feed belt 13c. A rotational speed of 15b is set.

  The downstream belt conveyance unit 16 is looped over two guide rollers 16a and a driving pulley 16b disposed above and below the label supply position α, and circulates between the upper and lower sides of the label supply position α. The feed belt 16c includes a suction mechanism 17 that sucks and holds the label L on the feed belt 16c. The drive pulley 16b is driven to rotate by an independent servo motor.

  The feed belt 16c is narrower than the label L to be conveyed, and a plurality of suction holes 16ch are formed at regular intervals along the longitudinal direction at the center in the width direction. The central part is sucked and held.

  As shown in FIG. 4, the suction mechanism 17 includes a suction chamber 17a disposed along the feed belt 16c between the guide rollers 16a, and a vacuum pump connected to the suction chamber 17a via a tube (not shown). The suction port is open on the contact surface of the suction chamber 17a with the feed belt 16c.

  The label supply device 3 includes a label detection signal output from a label detection sensor 18 that detects the upper end of the label L delivered from the upstream belt conveyance unit 13 at an upper position of the downstream belt conveyance unit 16, and a rotary type. The label base material delivery unit 11 and the label cutting unit 12 are synchronized with the operation of the label fitting device 4 based on the pulse signal output from the encoder attached to the rotary spindle of the label fitting device 4. A control unit (not shown) for controlling the operations of the upstream side belt conveyance unit 13 and the downstream side belt conveyance unit 16 is mounted. This control unit causes a deviation in the detection timing of the label L by the label detection sensor 18. If there is, the feed bell of the downstream belt conveyance unit 16 is based on the deviation amount. By adjusting the moving speed of 16c, the label L is transported while correcting the deviation of the supply timing of the label L due to the deviation of the label L, and finally the label L is always moved to the label supply position α at an appropriate supply timing. It is supposed to stop.

  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, 7, 8 and 10, the label delivery unit 40 is attached to the base plate 41 and a substantially Y-shaped take-up member 43 fixed to the base plate 41 via a support member 42. The slide guide 45 that moves up and down along the slide rail 22 fixed to the support frame 21 and the cam mechanism 46 that moves up and down the take-up member 43 are provided.

  As shown in FIG. 10A, the take-up member 43 includes a pair of suction rods 44, 44 for sucking and holding one side of the label L. The interval between the suction rods 44, 44 is as shown in FIG. As shown, the label supply position α 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.

  A plurality of suction holes 44a are formed in the upper and lower portions of the label holding surface of the suction rod 44 in the center in the width direction, and the vacuum pump is connected via an extendable suction pipe 48 rising from the support disk 4a. It is sucked by a suction device (not shown).

  The cam mechanism 46 includes a cam follower 46a attached to the base plate 41 via a support member 47, and a cam groove formed in a cylindrical body 4b fixedly installed on the inner side of the label fitting head 20 into which the cam follower 46a is fitted. 46b. When the cam follower 46a moves up and down along the cam groove 46b, the slide guide 45 attached to the base plate 41 moves up and down along the slide rail 22. The attached take-up member 43 is moved up and down.

  Accordingly, as shown in FIGS. 3 to 5, when the suction rods 44 of the take-up member 43 rotating together with the label fitting head 20 pass through the label supply position α, the feed belt of the label supply device 3 is used. The label L supplied while being sucked and held at 16c is received by being hooked, and the label L is sucked and held on the label holding surfaces of the suction rods 44 and 44.

  As shown in FIGS. 6 to 9 and FIGS. 11 to 15, the label opener 50 includes a main body unit 52 fixed to the base member 51 and a slide fixed to the support frame 21 attached to the base member 51. A slide guide 82 that moves up and down along the rail 22 and a cam mechanism 83 that moves up and down the main unit 52 are provided.

  The main unit 52 includes an annular upper base 53 and a lower base 54 that are open at the center, and a connecting plate 55 and a connecting rod that connect the upper base 53 and the lower base 54 at predetermined intervals in the vertical direction. 56, suction blocks 57, 57 disposed on the lower base 54 so as to surround the opening and connected to expandable / contractible suction pipes 84, 84 rising from the support disk 4a and having suction paths formed therein. And two upper and lower opening and closing arms 58, 58 that are supported by the upper base 53 and the suction blocks 57, 57 so as to be openable and closable and that have suction paths formed therein and whose tips are bent inward. Opening / closing arms 59, 59 and first to fourth suction rods 60 (60A) extending downwardly attached to the lower surfaces of the front ends of the opening / closing arms 58, 58, 59, 59, respectively. 60B, 60C, 60D) and two sets of opening / closing arms 58, 58 and an opening / closing mechanism 67 for simultaneously opening / closing the opening / closing arms 59, 59. As shown in FIG. , 58, one end side in the width direction of the label L folded in a sheet shape by the first suction rod 60A and the third suction rod 60C (approximately one full width of the label L from one side edge of the label L). / 4), and the width direction of the label L folded in a sheet shape by the second suction rod 60B and the fourth suction rod 60D attached to the other opening / closing arm 59, 59. An end side (a position on the inner side by approximately 1/4 of the entire width of the label L from the other side edge of the label L) is gripped. The label delivery unit 40 described above is disposed below the label opener 50. However, when the take-up member 43 is raised, the upper base of the main unit 52 is shown in FIGS. 53 and the lower base 54 are opened through the opening from the lower side.

  The suction rod 60 (60A, 60B, 60C, 60D) is provided on each of the open / close arms 58, 58, 59, 59 as shown in FIGS. 12 (a), 12 (b) and 13 (a) to (e). A base pipe 61 having a suction passage 61a formed at the center and connected to the lower surface of the tip portion, and a square section having a circular fitting hole that is rotatably fitted to a small diameter portion 62 of the base pipe 61. The outer pipe 64, the washer 65 having a larger diameter than the lower end of the base pipe 61 that is bolted to the lower end of the base pipe 61, and the lower end of the base pipe 61, and the lower end abuts against the washer 65. The coil spring 66 is housed in a large diameter portion 64a of a fitting hole formed in the lower end portion of the outer pipe 64 in a certain degree of compression. Type 64 is biased upward, the upper end of the outer pipe 64 is adapted to abut against the stepped portion formed between the large diameter portion 63 and small diameter portion 62 of the base pipe 61. In the state where the suction rod 60 (60A, 60B, 60C, 60D) is connected to each open / close arm 58, 58, 59, 59, the suction path 61a of each base pipe 61, each open / close arm 58, 58, 59, The suction path 59 and the suction paths 57 and 57 are connected to each other.

  The outer pipe 64 is formed with suction holes 64b on the two adjacent side surfaces so that the two adjacent side surfaces can be selectively used as the suction holding surface of the label L. A plurality of suction holes 64b are formed at the center in the width direction, and suction holes 64b are formed on the other side surface at the end in the width direction.

  In the small diameter portion 62 of the base pipe 61, a slit 62a is formed by cutting a part of the circumferential direction in the longitudinal direction, and only the suction hole 64b formed on one side surface of the outer pipe 64 is provided. The suction path 61a can be communicated.

  As shown in FIG. 14, the outer pipe 64 of the first suction rod 60A and the fourth suction rod 60D is a side surface adjacent to the left side toward the side surface in which the suction hole 64b is formed in the center in the width direction. Is formed with a suction hole 64b at the right end in the width direction, and the outer pipe 64 of the second suction rod 60B and the third suction rod 60C is a side surface with the suction hole 64b formed at the center in the width direction. A suction hole 64b is formed at the left end in the width direction on the side surface adjacent to the right side.

  Therefore, as shown in FIGS. 14A and 14B, the case where the side surface in which the suction hole 64b is formed at the center in the width direction is used as the suction holding surface of the label L, and FIGS. As shown in b), when the side surface in which the suction hole 64b is formed at the end in the width direction is used as the suction holding surface of the label L, the suction hole 64b of the first suction rod 60A and the second 14B and the distance between the suction hole 64b of the third suction rod 60C and the suction hole 64b of the fourth suction rod 60D change, and FIG. As shown in b) and FIGS. 15A and 15B, it is possible to cope with a plurality of types of labels L having different folding diameters.

  In addition, a convex portion 62b is formed at the upper end portion of the small diameter portion 62 of the base pipe 61 at a position corresponding to the slit 62a, and the convex portion 62b is formed on each side surface of the outer pipe 64. The outer pipe 64 is positioned with respect to the circumferential direction of the base pipe 61 by engaging with a recess 64 c formed at the upper end.

  Therefore, when changing the suction holding surface of the label L, the outer pipe 64 is pushed down against the base pipe 61 against the urging force of the coil spring 66, so that the convex portion 62b of the base pipe 61 and the concave portion of the outer pipe 64 are depressed. After releasing the engagement with 64c, the outer pipe 64 is rotated 90 degrees so that the convex portion 62b of the base pipe 61 is engaged with the concave portion 64c formed on the other suction holding surface of the outer pipe 64. Good.

  As shown in FIGS. 8, 9 and 11, the opening / closing mechanism 67 includes two sets of left and right slide guides 68, 68 and slide guides 68, 68 attached to the upper surface of the upper base 53, and left and right slide guides. 68, 68 and slide guides 69, 69 which are engaged with the slide guides 68, 68 and reciprocated, racks 70, 70 attached to the slide rails 69, 69, and the racks 70, 70, respectively. , Sector gears 71 and 71 attached to the rotary shafts of one of the open / close arms 58 and 58, and the rotary shaft 72 rotatably supported by the upper base 53 and the lower base 54 on the other open / close arm 59 and 59 side, The sector gears 71, 71 attached to the 72 and the flat side attached to the rotating shafts 72, 72 below the upper base 53. From the wheels 73 and 73, the spur gears 74 and 74 attached to the rotation shafts of the other opening and closing arms 59 and 59 meshing with the spur gears 73 and 73, and the advancing and retracting drive mechanism 75 for advancing and retracting the racks When the racks 70 and 70 are advanced and retracted, as shown in FIGS. 14A and 14B and FIGS. 15A and 15B, the rotation shafts of the opening and closing arms 58 and 58 and the opening and closing arms 59, The rotation shafts 59 and 59 rotate in opposite directions so that the open / close arms 58 and 58 and the open / close arms 59 and 59 facing each other open and close in the same manner.

  When the open / close arms 58 and 58 and the open / close arms 59 and 59 are open, as shown in FIGS. 14B and 15B, the suction hole 64b of the first suction rod 60A and the fourth suction are provided. The suction hole 64b of the basket 60D is opposed to the suction hole 64b of the second suction bowl 60B and the suction hole 64b of the third suction bowl 60C is opposed, and the label L is attached to the cylindrical bottle. It can be opened neatly in a state close to the body shape of B.

  The advancing / retracting drive mechanism 75 includes cam followers 76 and 76 attached to one end side of the racks 70 and 70, cam members 77 having cam surfaces that respectively contact the cam followers 76 and 76 from the other end side of the rack 70, and A cam guide 77 is attached via a base member 78. The slide guide 79 moves up and down along the slide rail 22 fixed to the support frame 21, and one end is connected to one end side of the racks 70 and 70, and the other end is connected. Coil springs 80, 80 that are connected to the upper base 53 and bias the racks 70, 70 to the other end side, and a cam mechanism 81 that raises and lowers the cam member 77 attached to the slide guide 79 via the base member 78. The cam mechanism 81 includes a cam follower 81a attached to the base member 78 and the cam follower. 81a is fitted, and a cam groove 81b formed in the fixedly installed cylindrical body 4b to the inside of the label placement head 20.

  Therefore, when the cam follower 81a moves up and down along the cam groove 81b, the slide guide 79 attached to the base member 78 moves up and down along the slide rail 22 and is attached to the base member 78 accordingly. The cam member 77 moves up and down, and the racks 70 and 70 are advanced and retracted at a predetermined timing by the raising and lowering operation of the cam member 77 and the urging force of the coil springs 80 and 80.

  As shown in FIG. 9, the cam mechanism 83 for moving the main unit 52 up and down includes a cam follower 83a attached to the base member 51, and a cylinder fixedly installed inside the label fitting head 20 into which the cam follower 83a is fitted. The cam follower 83a is moved up and down along the cam groove 83b, so that the slide guide 82 attached to the base member 51 is moved up and down along the slide rail 22. Accordingly, the main body unit 52 attached to the base member 51 is moved up and down.

  Hereinafter, operation | movement until the label fitting head 20 of the label fitting apparatus 4 receives the label L and it fits into the bottle B is demonstrated, referring FIGS. As shown in FIGS. 16A, 17A, and 17B, when the take-up member 43 of the label delivery unit 40 passes the label supply position α, the upstream belt conveyance unit of the label supply device 3 is used. 13, the label L supplied to the label supply position α is received while being sucked and held by the feed belt 16c of the downstream belt conveyance unit 16, and the label L is sucked and held on the label holding surface. . At this time, the bottle B on which the label L is fitted is placed on the bottle placing table 31 of the bottle holding unit 30, and the first to fourth suction rods 60A, 60B, 60C of the lowered label opener 50 are placed. , 60D is released from the label L by releasing the suction of the label L.

  Subsequently, as shown in FIGS. 16B, 17C, and 17D, the first to fourth suction rods 60A, 60B, 60C, and 60D of the label opener 50 are sucked into the take-up member 43. After raising to the height position of the label L being held, the open / close arm on the opposite side of the take-up member 43 with respect to the label L as shown in FIGS. 58 and 59 are closed, and after the third suction rod 60C and the fourth suction rod 60D sandwich the label L between the take-up member 43 and suck and hold the label L, the label L by the take-up member 43 The label L is delivered from the take-up member 43 to the third suction rod 60C and the fourth suction rod 60D.

  Thereafter, as shown in FIGS. 16 (d), 18 (c), and 18 (d), the open / close arm to which the third suction rod 60C and the fourth suction rod 60D holding the label L are attached are attached. By opening 58 and 59, the label L is separated from the take-up member 43. At this time, the label fitting head 20 is moved to the bottle carrying-out position γ, and the bottle B on which the label L is fitted, which is placed on the bottle placing table 31 of the bottle holding unit 30, is the bottle carrying-out device 5. Is delivered to a bottle delivery unit comprising a belt conveyor 6 by the bottle delivery unit 5a.

  Subsequently, the label fitting head 20 moves to the bottle supply position β, and a new bottle is added to the bottle mounting table 31 of the bottle holding unit 30 as shown in FIGS. When B is supplied and the label delivery unit 40 is raised, the take-up member 43 is retracted from the suction holding position of the label L by the third suction rod 60C and the fourth suction rod 60D. f) and the two opening / closing arms 58, 58 and the opening / closing arms 59, 59, as shown in FIGS. 19C and 19D, the first suction rod 60A and the second suction rod are closed. The label L is sucked and held by the 60B, the third suction rod 60C, and the fourth suction rod 60D.

  Thereafter, as shown in FIGS. 16 (g), 20 (a), and 20 (b), the two sets of opening / closing arms 58, 58 and the opening / closing arms 59, 59 open to each other, whereby the first suction rod 60A and After the second suction rod 60B, the third suction rod 60C, and the fourth suction rod 60D open the label L, as shown in FIGS. 16 (h), 20 (c), and 20 (d), the label When the delivery unit 40 and the label opener 50 are lowered, the label L opened by the first suction rod 60A and the second suction rod 60B, the third suction rod 60C and the fourth suction rod 60D, It is fitted on the body of the bottle B sucked and held on the bottle mounting table 31.

  In this way, when the label L is fitted on the bottle B, after that, the bottle B fitted with the label L is performed by executing the steps shown in FIGS. 16A to 16D described above. It is delivered to the bottle carry-out device 5.

  As described above, the label opener 50 mounted on the label fitting head 20 of the label fitting system 1 is configured such that the two sets of opening / closing arms 58 and 58 and the opening / closing arms 59 and 59 open to each other. When the label L is opened by the suction rod 60A, the second suction rod 60B, the third suction rod 60C, and the fourth suction rod 60D, as shown in FIG. 14B, the first suction rod The suction hole 64b of 60A and the suction hole 64b of the fourth suction rod 60D are opposed to each other, and the suction hole 64b of the second suction rod 60B and the suction hole 64b of the third suction rod 60C are opposed to each other. Therefore, the label L can be opened neatly in a state close to the body shape of the cylindrical bottle B.

  Therefore, when the label L opened by the label opener 50 is fitted on the bottle B, the bottle B hardly comes into contact with the label L, and even if it is a tight and thin label L having a thickness of 20 μm to 40 μm, it is smooth. And it can be reliably fitted to the bottle B. This is particularly effective when an ultra-thin label having a thickness of 20 μm to 30 μm is fitted.

  Further, the label opener 50 can use two adjacent side surfaces of the outer pipe 64 constituting the first to fourth suction rods 60A, 60B, 60C, 60D as the suction holding surface of the label L. Thus, the suction holes 64b are formed on the two side surfaces, and the suction holes 64b are formed at different positions in the width direction of the side surfaces for each side surface. By simply rotating the outer pipe 64 of the suction rods 60A, 60B, 60C and 60D, the distance between the suction position by the first suction rod 60A and the suction position by the second suction rod 60B and the third suction rod 60C Even if the distance between the suction position and the suction position by the fourth suction rod 60D can be changed and the width of the label L is changed within a certain range, the label opener It is not necessary to replace the 50 itself, it is possible to mold replacement easy.

  In this label fitting system 1, since the label delivery unit 40 is mounted on the label fitting head 20, the label L can be delivered from the label delivery unit 40 to the label opener 50 in a stable state. When the label L is delivered from the label delivery unit 40 to the label opener 50, there is an effect that the positional deviation of the label L hardly occurs.

  In the above-described embodiment, the suction holes 64b are formed on the two adjacent side surfaces of the outer pipe 64 constituting each suction rod 60A, 60B, 60C, 60D. However, the present invention is not limited to this. It is also possible to form suction holes on three or all of the side surfaces, and this has the effect that the application range of the label width is widened.

  In the above-described embodiment, the suction holes 64b are formed on the plurality of side surfaces of the outer pipe 64. However, the present invention is not limited to this, and a single suction holding surface is formed on the suction rod. A plurality of sets of suction holes are formed at different positions in the width direction on the wide suction holding surface, and an appropriate suction path switching means is provided so that the suction path is made to communicate with only one set of suction holes. It may be.

  Moreover, although embodiment mentioned above demonstrated the label fitting system 1 for fitting the cylindrical label L to the trunk | drum of the bottle B, it is not limited to this, This invention is cylindrical. Needless to say, this film can be applied to the case where the film is fitted to various kinds of objects to be fitted.

  A cylindrical film can be opened neatly in a circular or substantially quadrangular shape, and when the opened film is fitted to a body of a round bottle or a square bottle, the lower edge of the film is a round bottle or a square bottle. Since it becomes difficult to contact a shoulder part, it can be applied when a thin film with no waist is fitted on a bottle container or the like.

1 Label fitting system (film fitting system)
2 Bottle supply device (fitting body supply device)
3 Label supply device (film supply device)
4 Label fitting device (film fitting device)
4a Support disk 4b Cylindrical body 5 Bottle unloading device (fit object unloading device)
6 Belt conveyor 11 Label substrate delivery unit 12 Label substrate cutting unit 13 Upstream belt conveyance unit 16 Downstream belt conveyance unit 18 Label detection sensor 20 Label fitting head (film fitting head)
21 Support frame 22 Slide rail 30 Bottle holding unit 31 Bottle mounting table 40 Label delivery unit (film delivery unit)
41 Base plate 42, 47 Support member 43 Take-up member 44 Suction rod 44a Suction hole 45 Slide guide 46 Cam mechanism 48 Suction pipe 50 Label opener (film opener)
51 Base member 52 Main unit 53 Upper base 54 Lower base 55 Connection plate 56 Connection rod 57 Suction block 58, 59 Opening / closing arm 60A First suction rod 60B Second suction rod 60C Third suction rod 60D Fourth suction ６１ 61 Base pipe 61a Suction path 62 Small diameter portion 62a Slit 62b Protruding portion 63 Large diameter portion 64 Outer pipe 64a Large diameter portion of fitting hole 64b Suction hole 64c Concavity 65 Washer 66 Coil spring 67 Opening / closing mechanism 68 Slide guide 69 Slide rail 70 Rack 71 Sector gear 72 Rotating shaft 73, 74 Spur gear 75 Advance / retract drive mechanism 76 Cam follower 77 Cam member 78 Base member 79 Slide guide 80 Coil spring 81 Cam mechanism 81a Cam follower 81b Cam groove 82 Slide guide 83 Cam machine 83a Muforoa 83b cam groove 84 the suction pipe B PET bottles (to be Hamakarada)
L Shrink label (film)

Claims (6)

A to-be-fitted body supply device for supplying a to-be-fitted body to a to-be-fitted body supply position;
A film supply device that supplies a tubular film folded into a sheet shape to a film supply position;
The fit object supplied by the fit object supply device is received at the fit object supply position and conveyed to the fit object delivery position, while the film supplied by the film supply device is received at the film supply position, and the fit object is A rotary type film-fitting device for fitting the film to the fitting body while transporting from the fitting body supply position to the fitting body delivery position;
A fitted body carrying-out device for carrying out a fitted body with a film fitted by the film fitting device;
The film fitting apparatus includes a plurality of film fitting heads attached at regular intervals on a concentric circle around the rotation axis,
Each film fitting head is supplied with a film opener that opens a cylindrical film supplied in a folded state into a sheet shape and fits the fitting body, and a film supplied by a film supply device. The film delivery unit that receives it at the position and delivers it to the film opener is mounted so that it can be raised and lowered,
The film opener sucks one side of the film folded in a sheet shape with a predetermined interval in the width direction, each of the first suction rod and the second suction rod extending in the length direction of the film, One surface of the film has a third suction rod and a fourth suction rod, each of which sucks a position corresponding to each of the first suction rod and the second suction rod on the other surface side of the film, each extending in the length direction of the film. The first and second suction rods sucking the side and the third and fourth suction rods sucking the other side of the film are separated from each other to be folded into a sheet shape. When the film is opened and the film is opened, the suction hole of the first suction rod and the suction hole of the fourth suction rod face each other, and the suction hole of the second suction rod and the suction of the third suction rod Configured to face the hole. Cage,
The film delivery unit has a take-up member that sucks and holds one side of the film supplied to the film supply position,
The take-up member includes the first suction rod and the second suction rod, the third suction rod and the fourth suction rod in a state where the first suction rod and the second suction rod are separated from the third suction rod and the fourth suction rod. A film-covering system configured to enter or pass from above or below from a suction trough.   The suction hole of the first suction rod, the suction hole of the second suction rod, the suction hole of the third suction rod and the suction hole of the fourth suction rod constituting the film opener are arranged in the length direction of each suction rod. The film covering system according to claim 1, wherein: The first suction rod, the second suction rod, the third suction rod, and the fourth suction rod are each supported by the other end of an opening / closing arm that can rotate around one end.
The opening / closing arm that supports the first suction rod and the opening / closing arm that supports the third suction rod rotate in opposite directions so that the first suction rod and the third suction rod grip the film. Approach and separate on a circular orbit passing through the position and the opening position of the film,
The opening / closing arm supporting the second suction rod and the opening / closing arm supporting the fourth suction rod rotate in the opposite directions, so that the second suction rod and the fourth suction rod grip the film. The film covering system according to claim 1 or 2, wherein the film covering system is configured to approach and separate on a circular orbit passing through the position and the opening position of the film.   In the film opener, the first suction rod and the second suction rod or the third suction rod and the fourth suction rod sandwich and hold the film between the take-up member and the take-up member releases the film suction. The film fitting system according to claim 1, 2 or 3, wherein the film is configured to receive the film from the take-up member. When the take-up member receives the film, the film opener retracts to the lower side of the take-up member,
5. The film cover according to claim 4, wherein when the film opener opens the film received from the take-up member and covers the film opener, the take-up member is retracted to a position above the film opener. Fitting system.   The film fitting system according to claim 1, 2, 3, 4 or 5, wherein the film opener is configured to fall in a state where the film is opened, thereby fitting the film on the fitting body.

Images