JP5957230B2 - Film fitting device - Google Patents

Description

  The present invention relates to a film fitting apparatus for fitting a tubular film such as a cap seal or a label onto a fitting body such as a bottle container, and more particularly to a film fitting apparatus suitable for a thin tubular film or the like.

  As a label fitting apparatus for fitting a cylindrical label L formed of a thin film on the body of the bottle container B, for example, a device as shown in FIG. 15 is disclosed. As shown in the figure, the film covering apparatus 90 is formed by converting a long belt-like label forming base material M in a state of being folded into a sheet shape, in which cylindrical labels L are continuously connected, into a cylindrical mandrel. While being opened in a predetermined state by being fitted on 91, the feed roller 92 feeds the lower part of the mandrel 91, and the cut unit 93 installed at the cutting position encloses the middle part of the mandrel 91 to a predetermined length. After the individual labels L are formed by sequentially cutting the individual labels L, the opened individual labels L are sequentially sent to the predetermined label fitting positions by the rollers 94, and are sequentially conveyed to the label fitting positions. A label L is fitted on the body of the container B.

  As shown in the figure, the roller 94 is disposed in an inclined state with respect to the feeding direction of the label L, and the label L is rotated by rotating the label L sandwiched between the mandrel 91 and the label L. While L is rotated in the circumferential direction, it is sent out downward.

  In this way, when the label L is sent to the lower side while rotating in the circumferential direction, the cylindrical label L spreads outward in the radial direction, and the lower end side of the label L protruding from the mandrel 91 is less likely to be tapered. Even if it is the label L formed with the thin film, there exists an advantage that it can be reliably fitted to the trunk | drum of the bottle container B. FIG.

Special table 2010-516567 gazette

  By the way, in the label covering apparatus 90 as described above, the lower end portion of the label L conveyed to the lower end of the mandrel 91 is put on standby in a state of being sandwiched between the roller 94 and the mandrel 91, and the bottle container B is placed in the label covering state. When passing the position, the roller 94 is intermittently driven in such a manner that the roller 94 is rotated in accordance with the passage timing, and the label L is rotated in the circumferential direction and sent to the lower side of the mandrel 91. Therefore, as shown in FIG. 16, after the roller 94 starts to rotate, the final delivery peripheral speed V0 converted to the peripheral speed in the label delivery direction corresponding to the fitting speed (the downward movement speed of the label L) is obtained. A certain amount of acceleration time Δt is required to reach this.

  As described above, since the label L cannot be sent downward at the fitting speed (final sending peripheral speed V0) from when the roller 94 starts to rotate until the final sending peripheral speed V0 is reached, the label L cannot be sent. There is a limit in reducing the time (covering time) to required to fit the body of the bottle container B after starting the delivery of L.

  As described above, when the label L is fitted while being moved without stopping the bottle container B at the label fitting position, when the fitting time of the label L becomes long, the label L is fitted to the bottle container B. Since the movement distance of the bottle container B from the beginning to the end of the fitting increases, as shown in FIG. 17A, in order to fit the label L into the bottle container B securely, the label L The folding diameter (diameter D1) must be increased. On the contrary, when the fitting time of the label L is shortened, the movement distance of the bottle container B from the beginning of fitting the label L to the bottle container B to the end of fitting is reduced. As shown in FIG. 3, even if the folding diameter (diameter D2) of the label L is reduced, the label L can be reliably fitted to the bottle container B. However, at the label fitting position as described above, there is a limit to shortening the fitting time, and thus there is a limit to reducing the folding diameter.

  Then, the subject of this invention is providing the film fitting apparatus which can shorten the fitting time required in order to fit a cylindrical film on a to-be-fitted body.

In order to solve the above-mentioned problems, the invention according to claim 1 is directed to a mandrel while opening a cylindrical film of a predetermined length formed by sequentially cutting a cylindrical long film by fitting the mandrel on the mandrel. In the film fitting apparatus in which the cylindrical film is fitted to the fitted body that passes directly under the mandrel by sequentially sending the cylindrical film fitted to the lower side, the long film has a predetermined length. Film cutting means for cutting the cylindrical film with a cutter, film transfer means for transferring the cylindrical film or long film downward while synchronizing with the film cutting means, the film cutting means and the film transfer is disposed below the means, the tubular film that is fitted onto the mandrel, from the standby state sandwiched between the mandrel, the passage of the Hamakarada An upper shot roller rotates intermittently performs the operation of sending to the lower side at a predetermined delivery rate in accordance with the timing, the tubular film that is delivered to the lower side by the upper shot roller always Hasamikomeru state between the mandrel The cylindrical film that is disposed and is sent to the lower side by the upper shot roller at a predetermined delivery speed is sandwiched between the mandrel and is continuously sent to the lower side so that it can pass directly under the mandrel. A lower-order shot roller that rotates continuously so as to fit the tubular film on the body, and an interval between the sandwich position of the tubular film by the upper shot roller and the sandwich position of the tubular film by the lower shot roller but is set larger than the length of the tubular film, the lower the shot roller has its axis of rotation the man It is disposed in a state inclined with respect to the axis of the barrel, when the sandwiches the tubular film between the mandrel, the tubular film feed direction of the circumferential feed direction conversion peripheral speed in terms of speed is The present invention provides a film fitting apparatus characterized by being rotated at a constant speed at a rotation speed corresponding to a preset fitting speed.

  According to a second aspect of the present invention, in the film fitting apparatus according to the first aspect of the invention, the downward feeding speed of the cylindrical film by the lower shot roller is set to the downward feeding speed of the cylindrical film by the upper shot roller. It is characterized by being larger than the speed.

According to a third aspect of the present invention, there is provided a cylinder fitted on a mandrel while opening by fitting a cylindrical film of a predetermined length formed by sequentially cutting a cylindrical long film on the mandrel. In a film fitting apparatus in which a tubular film is fitted onto a fitted body that passes directly under a mandrel by sequentially sending the shaped film downward, a long film is cut into a tubular film of a predetermined length. A film cutting means for cutting the film, a film transferring means for transferring a cylindrical film or a long film to the lower side while synchronizing with the film cutting means, and a lower side of the film cutting means and the film transferring means. is set, the tubular film that is fitted onto the mandrel, from the standby state sandwiched between the mandrel, in accordance with the passing timing of the Hamakarada An upper shot roller rotates intermittently performs the operation of sending to the lower side at a constant delivery rate, are arranged in a constantly Hasamikomeru state between the mandrel tubular film delivered to the lower side by the upper shot rollers, upper The cylindrical film sent to the lower side by the shot roller at a predetermined delivery speed is sandwiched between the mandrel and continuously sent to the lower side to form a cylindrical shape on the fitted body that passes directly under the mandrel. A lower shot roller that rotates continuously to perform the operation of fitting the film, and the lower shot roller is disposed with its rotation axis inclined with respect to the axis of the mandrel. At the time of receiving from the roller, the peripheral speed in the sending direction converted to the peripheral speed in the cylindrical film sending direction of the upper shot roller and the lower shot The circumferential speed in the feed direction converted to the circumferential speed in the cylindrical film feed direction of the Troller is substantially the same, and the lower shot roller increases the speed after the received cylindrical film leaves the upper shot roller. It is intended to provide a film-covering device characterized by the above.

  According to a fourth aspect of the present invention, in the film fitting apparatus according to the first, second, or third aspect of the invention, the upper shot roller is disposed in a state in which the rotation shaft is inclined with respect to the axis of the mandrel. It is characterized by having.

  The invention according to claim 5 is the film fitting apparatus according to claim 1, 2, 3 or 4, wherein the fitted body has a smaller head than the trunk and a lower end of the mandrel. Is formed with a groove extending in the conveying direction of the fitted body, and when the fitted body passes directly under the mandrel, the small-diameter head of the fitted body passes through the groove. It is characterized by being.

As described above, in the film fitting apparatus according to the first aspect of the present invention, the continuously rotating lower shot roller that performs the operation of fitting the tubular film fitted onto the mandrel onto the fitted body includes the tubular film. When sandwiched between the mandrel and the mandrel, since the sending direction converted peripheral speed converted to the peripheral speed in the cylindrical film sending direction is rotating at a constant speed at the rotation speed corresponding to the preset fitting speed, the shot Since the roller is driven intermittently, it takes a certain amount of acceleration time from the time when the shot roller starts to rotate until it reaches a predetermined covering speed (final sending peripheral speed of the shot roller). Unlike fitting device can be delivered at the fitting speed tubular film from the delivery start time, in addition, Ru can throw downward while rotating the tubular film in a circumferential direction.

  Therefore, compared with the conventional film-fitting device, the time (fitting time) required for fitting the tubular film to the fitting object after the delivery of the tubular film can be shortened. Thus, an effect that the folding diameter of the tubular film can be reduced is obtained.

  Further, the invention according to claim 2 further shortens the fitting time because the downward feeding speed of the tubular film by the lower shot roller is larger than the downward feeding speed of the tubular film by the upper shot roller. And the folding diameter of the tubular film can be further reduced.

In the invention according to claim 3, when the cylindrical film is received from the upper shot roller in which the continuously rotating lower shot roller intermittently rotates, the feeding direction converted into the peripheral speed of the lower shot roller in the cylindrical film feeding direction. The peripheral speed is substantially the same as the peripheral speed in the sending direction converted to the peripheral speed in the cylindrical film sending direction of the upper shot roller, and the lower shot roller rotates the cylindrical film in the circumferential direction after receiving the cylindrical film. Since the shot roller is driven intermittently because the speed is increased while being different from the conventional film fitting apparatus that accelerates from the stopped state to the fitting speed, until the predetermined fitting speed is reached. Acceleration time required for this is shortened, and as a result, the fitting time can be shortened as compared with the conventional film fitting device. There is an advantage that it is possible to reduce the folded diameter.

  In the invention according to claim 4, since the upper shot roller and the lower shot roller are disposed in a state in which both rotation shafts are inclined with respect to the axis of the mandrel, the cylindrical film rotates in the circumferential direction. However, the upper shot roller is handed over to the lower shot roller, and the cylindrical film can be smoothly transferred from the upper shot roller to the lower shot roller.

  By the way, in this kind of film covering apparatus, since the tubular film folded in a sheet shape is opened by covering the mandrel, the lower end side of the tubular film protruding from the mandrel is a crease. When the tubular film is fitted into a fitting body whose head is smaller in diameter than the trunk portion, the lower end portion of the tubular film is the fitting body. There is a problem that the tubular film cannot be fitted onto the fitted body smoothly and reliably.

  However, in the film fitting apparatus according to the fifth aspect of the present invention, the lower end of the mandrel has a groove extending in the conveying direction of the fitted body, and when the fitted body passes directly under the mandrel, Since the small-diameter head of the fitting is in the groove, the lower end of the mandrel and the large-diameter trunk of the fitted body approach each other when the fitted body passes directly under the mandrel. It is in a state. Accordingly, the tubular film that has jumped out of the mandrel starts to be fitted into the body of the fitting body with the lower end of the tubular film not greatly squeezed, so that the lower end of the tubular film hits the shoulder of the fitting body. It is difficult to touch, and the tubular film can be smoothly and reliably fitted to the fit object.

It is a front view which shows the label covering apparatus which is one Embodiment of the film covering apparatus which concerns on this invention. It is a side view which shows a label covering apparatus same as the above. (A) is a front view which shows the mandrel which comprises the label covering apparatus same as the above, (b) is a side view which shows the mandrel same as the above. It is a perspective view which shows the bottle detection sensor mounted in the label covering apparatus same as the above. It is a functional block diagram which shows the control system of a label covering apparatus same as the above. It is a timing chart which shows operation | movement of a feed belt, a high-order shot roller, and a low-order shot roller in a label covering apparatus same as the above. (A) is a timing chart which shows the fitting time in a label fitting apparatus same as the above, (b) is a timing chart which shows the fitting time in the conventional fitting apparatus. (A) is a timing chart which shows the fitting time of the label fitting apparatus which is other embodiment, (b) is a timing chart which shows the fitting time in the conventional fitting apparatus. It is a timing chart which shows the fitting operation | movement of the upper shot roller and the lower shot roller in the label covering apparatus which is other embodiment. It is a timing chart which shows the fitting operation | movement of the upper shot roller and the lower shot roller in the label covering apparatus which is other embodiment. It is a front view which shows the label covering apparatus which is other embodiment. It is a side view which shows a label covering apparatus same as the above. It is a front view which shows the label covering apparatus which is other embodiment. It is a side view which shows a label covering apparatus same as the above. It is a schematic block diagram which shows the conventional label covering apparatus. It is a timing chart which shows operation | movement of the shot roller in a label covering apparatus same as the above. (A), (b) is explanatory drawing for demonstrating the relationship between the covering time of a label, and the folding diameter (diameter) of a label.

  Hereinafter, embodiments will be described with reference to the drawings. 1 and 2 show a cylindrical label L formed by printing on a shrink film having a thickness of 15 to 40 μm made of polyester resin, polystyrene resin, polyolefin resin, etc. The label covering apparatus 1 which fits in is shown. As shown in the figure, the label fitting apparatus 1 is configured such that the individual labels L are separated from the label-forming substrate LM in a state of being folded into a sheet shape in which the cylindrical labels L are continuously connected. By sequentially sending the label L to the label fitting position α, the bottle L is fitted to the body of the bottle container B that is sequentially conveyed to the label fitting position α by the bottle conveying device 2 at a predetermined conveying pitch. And a substrate feeding unit 10 comprising a driving roller 11 and a driven roller 12 that intermittently feed the label-forming substrate LM fed from a label roll (not shown) mounted on the cylindrical label supply device to a cutting position. A mandrel 20 that opens in a predetermined state by fitting the label-forming substrate LM that has been delivered by the substrate delivery unit 10, and the substrate delivery unit 10 and the mandrel A guillotine-type base material cutting unit comprising a fixed blade 31 and a movable blade 32 that form individual labels L by sequentially cutting the label forming base material LM disposed at a predetermined cut pitch. 30, a label transfer means 40 for intermittently transferring the label L cut off in a state of being fitted to the mandrel 20 to the lower side of the mandrel 20, and a label L transferred by the label transfer means 40 for receiving the mandrel And a pair of lower shot rollers 60 that receive the label L sent by the upper shot roller 50 and send it to the label fitting position α.

  As shown in FIGS. 1 to 3, the mandrel 20 includes a label opening portion 21 having a tapered wedge shape on the upper end side, and a label shaping portion 25 having a circular cross section continuously provided below the label opening portion 21. The label forming substrate LM fitted to the upper end of the label opening 21 is gradually opened by being transferred to the lower side of the label opening 21 and separated into individual labels L. By being fitted to the label shaping unit 25, it is shaped into a cylindrical shape.

  In the lower half of the label opening 21, a pair of upper rollers 22 and a pair of middle rollers 23 with the peripheral surfaces slightly projecting from the upstream and downstream side surfaces of the bottle container B in the transport direction. And a pair of lower rollers 24 are rotatably attached to each of the side surfaces of the label opening 21, and recesses 21 a that expose the lower peripheral surfaces of the respective middle rollers 23 are formed.

  A large number of vertical grooves VG are formed on the outer peripheral surface of the label shaping unit 25 in order to reduce the contact area with the label L, and a bottle container is provided at the lower end of the upper half 25a of the label shaping unit 25. A pair of rollers 26 sandwiching the label L between the pair of upper shot rollers 50 at positions orthogonal to the conveying direction of B are rotatably mounted with their peripheral surfaces slightly protruding, At the lower end of the lower half portion 25b of the label shaping unit 25, a pair of rollers 27 sandwiching the label L between the pair of lower shot rollers 60 at a position orthogonal to the conveyance direction of the bottle container B has a peripheral surface thereof. It is mounted so as to be rotatable with a slight protrusion.

  The interval between the roller 26 and the roller 27 is set slightly larger than the length of the label L so that the upper shot roller 50 and the lower shot roller 60 do not sandwich the same label L at the same time.

  Further, on the upstream side in the transport direction of the bottle container B, a label detection sensor 70 made of a reflective photoelectric sensor is disposed, and at the lower end of the upper half portion 25a of the label shaping unit 25 in the mandrel 20, A reflection mirror 71 that reflects the light emitted from the label detection sensor 70 is attached, and the label L transferred to the lower end position of the mandrel 20 by the label transfer means 40 is detected.

  Further, as shown in FIG. 4, on the upstream side in the transport direction of the bottle container B in the vicinity of the label fitting position α, the bottle detection is made of a reflective photoelectric sensor on both sides of the transport path of the bottle container B. A sensor 72 and a reflecting mirror 73 that reflects the light emitted from the bottle detection sensor 72 are provided, and the bottle container B conveyed by the bottle conveying device 2 is positioned immediately before the label fitting position α. It comes to detect in.

  As shown in FIGS. 1 and 2, the label transfer means 40 is attached to the label opening 21 of the mandrel 20, and the label L separated from the label forming substrate LM by the substrate cutting unit 30 is used. It is composed of feed belt units 40A and 40B disposed on the upstream side and the downstream side in the transport direction of the bottle container B in the mandrel 20 to be sandwiched between the label opening 21 and transferred to the label shaping unit 25. Each of the feed belt units 40A and 40B includes a drive pulley 41, four driven pulleys 42, 43, 44, and 45, and a feed belt 46 that spans them.

  The driving pulley 41 and the driven pulleys 44 and 45 are disposed at positions corresponding to the lower roller 24, the upper roller 22, and the middle roller 23 of the label opening 21 in the mandrel 20, respectively. 22, the label L is sandwiched between the middle roller 23 and the intermediate belt 23 via a feed belt 46.

  The drive pulley 41 and the driven pulleys 44 and 45 of the feed belt units 40A and 40B are rotatably supported by the same support member, and the driven pulley 45 is a recess formed in the label opening 21 in the mandrel 20. By entering 21 a, the mandrel 20 is supported via the middle roller 23.

  The feed belt 46 synchronizes with the driving roller 11 of the base material delivery unit 10 while the label forming base material LM is formed at the same speed as the feed speed of the label forming base material LM by the base material delivery unit 10. However, after the substrate forming unit 10 stops the label forming substrate LM and the substrate cutting unit 30 cuts the label forming substrate LM, the separated label L is transferred to the substrate 25. It is transferred to the label shaping unit 25 of the mandrel 25 at a speed faster than the delivery speed of the label forming substrate LM by the delivery unit 10.

  As shown in FIGS. 1 and 2, each of the pair of upper shot rollers 50 and the pair of lower shot rollers 60 is inclined downward toward the downstream side in the conveyance direction of the bottle container B, and the other is the bottle container B. A state in which each rotation shaft is inclined by 30 degrees with respect to the axis of the mandrel 20 so as to be inclined downward toward the upstream side in the conveying direction, that is, the upper shot roller 50 and the lower order with respect to the axis of the mandrel 20 The shot roller 60 is disposed on both sides of the bottle container B with the shot roller 60 tilted by 60 degrees. As shown in FIG. 3A, each roller 26 of the label shaping unit 25 in the mandrel 20 and The respective rotation shafts are inclined in the same direction as the pair of upper shot rollers 50 and the pair of lower shot rollers 60 corresponding to the respective rollers 27. They are respectively attached to the label shaping unit 25 in a state inclined 30 degrees relative to the axis of.

  Each upper shot roller 50 and each lower shot roller 60 are directly connected to the rotation shafts of shot roller motors 51 and 61 each composed of a servo motor, and each of the shot roller motors 51 and 61 is connected to the mandrel 20. By supporting the upper shot roller 50 and the lower shot roller 60 in the opposite directions by supporting them in a state inclined at 30 degrees in the opposite direction with respect to the shaft core, the respective outer peripheral surfaces are labeled. The outer peripheral surfaces of the rollers 26 and 27 corresponding to the portion 25 are substantially brought into contact with each other.

  Therefore, when the label L fitted on the mandrel 20 is sandwiched between the upper shot roller 50 or the lower shot roller 60 and the label shaping unit 25 of the mandrel 20, the upper shot roller 50 or the lower shot roller 60 is rotated. The label L is sent out downward while rotating in the circumferential direction.

  FIG. 5 is a block diagram showing an electrical configuration of a label mounting system including the label fitting device 1 and the bottle transport device 2. This label mounting system includes a container transport control device 2A and a label control device 1A. A label control device 1A is connected to the container transport control device 2A, and between the container transport control device 2A and the label control device 1A. Data relating to the label mounting operation, control signals, and the like are input / output from / to each other.

  The container transport control device 2A is connected to an inverter 81 that drives a conveyor motor 2b for operating the conveyor 2a of the bottle transport device 2, and outputs a control signal for operating the conveyor 2a to the inverter 81. Then, a drive signal is output from the inverter 81 to the conveyor motor 2b, whereby the conveyor motor 2b is rotationally driven, and the conveyor 2a conveys the bottle container B toward the label fitting device 1.

  The container transport control device 2A is connected to an inverter 82 for driving a container pitch cutting motor 2d for operating a container pitch cutting device 2c such as a screw mounted on the bottle transport device 2. When a control signal for operating the device 2c is output to the inverter 82, a drive signal is output from the inverter 82 to the container pitch cutting motor 2d, whereby the container pitch cutting motor 2d is driven to rotate, and the container pitch cutting device. 2c conveys the bottle container B at a predetermined conveyance pitch.

  Further, the container conveyance control device 2A can change the rotation speeds of the conveyor motor 2b and the container pitch cutting motor 2d, and changes the conveyance speed of the bottle container B by changing these rotation speeds. be able to.

  The label control device 1A includes a microcomputer (not shown), and based on a command from the container transport control device 2A and an operation program stored in advance, the driving roller 11 of the base material delivery unit 10 and the base material cutting unit 30. The operation of the movable blade 32, the feed belt 46 of the label transfer means 40, the upper shot roller 50 and the lower shot roller 60 is controlled. The label control device 1A includes a memory (not shown) for storing various data.

  In addition, an operation display device 83 is connected to the label control device 1 </ b> A, and a label detection sensor 70 and a bottle detection sensor 72 are connected via sensor amplifiers 88 and 89.

  The label control apparatus 1A is connected to a servo amplifier 84 that controls a pitch feed motor 10a that is a servo motor for rotationally driving the drive roller 11 of the base material feed unit 10, and includes a label detection sensor 70 and a bottle detection. When a control signal for rotating the drive roller 11 is output to the servo amplifier 84 based on the label detection signal and the bottle detection signal output from the sensor 72, a drive signal is sent from the servo amplifier 84 to the pitch feed motor 10a. As a result, the pitch feed motor 10a is driven, and the drive roller 11 rotates.

  The label control device 1A is connected to a servo amplifier 85 that controls a movable blade motor 30a that is a servo motor for driving the movable blade 32. Labels output from the label detection sensor 70 and the bottle detection sensor 72 are connected to the label control device 1A. When a control signal for advancing and retracting the movable blade 32 is output to the servo amplifier 85 based on the detection signal and the bottle detection signal, a drive signal is output from the servo amplifier 85 to the movable blade motor 30a. The blade motor 30 a is driven, and the movable blade 32 moves forward and backward with respect to the fixed blade 31.

  The label control device 1A is connected to a servo amplifier 86 that controls a feed belt motor 40a that is a servo motor for rotationally driving the drive pulley 41 around which the feed belt 46 is stretched. When a control signal for rotating the drive pulley 41 is output to the servo amplifier 86 based on the label detection signal and the bottle detection signal output from the bottle detection sensor 72, the servo amplifier 86 drives the feed belt motor 40a. A signal is output, whereby the feed belt motor 40a is rotationally driven, the drive pulley 41 rotates, and the feed belt 46 circulates.

  The label control device 1A is connected to a servo amplifier 87a for controlling a shot roller motor 51 for rotationally driving the upper shot roller 50, and a label detection signal output from the label detection sensor 70 and the bottle detection sensor 72. When a control signal for rotating the upper shot roller 50 is output to the servo amplifier 87a based on the bottle detection signal, a drive signal is output from the servo amplifier 87a to the shot roller motor 51. The motor 51 is driven to rotate, and the upper shot roller 50 rotates.

  The label control device 1A is connected to a servo amplifier 87b for controlling a shot roller motor 61 for rotationally driving the lower shot roller 60, and a control signal for rotating the lower shot roller 60 is transmitted to the servo amplifier 87b. Is output from the servo amplifier 87b to the shot roller motor 61, whereby the shot roller motor 61 is rotationally driven and the lower shot roller 60 rotates.

  Hereinafter, operation | movement of this label covering apparatus 1 is demonstrated, referring the timing chart shown in FIG. First, in the standby state shown in FIGS. 1 and 2, when the bottle container B is detected by the bottle detection sensor 72 described above (T0), the upper shot roller 50 starts to rotate, and the upper half of the label shaping unit 25. The label L (L1) fitted to 25a starts to be fed to the lower half 25b of the label shaping unit 25 while rotating in the circumferential direction. The upper shot roller 50 rapidly accelerates to the final peripheral speed Vc, then rotates at the final peripheral speed Vc for a predetermined time, and stops rotating after the label L is separated from the upper shot roller 50 (T1).

  The lower shot roller 60 always rotates at a constant speed at a peripheral speed Vd that is about three times the final peripheral speed Vc of the upper shot roller 50 during operation of the apparatus, and the upper end of the label L (L1) is shot. The label L (L1) is received by being sandwiched between the lower shot roller 60 and the mandrel 20 at the moment of separation from the roller 50, and sent to the lower side while rotating in the circumferential direction. The bottle container B that passes through is fitted to the trunk portion in time.

  When the bottle container B is detected by the bottle detection sensor 72 (T0), the label transfer means 40 also starts to drive, and the next label L (L2) held between the label opening 21 of the mandrel 20 is started. ) Starts to be transferred to the label shaping unit 25 of the mandrel 20, and when the lower end of the label L (L2) reaches a position just before being gripped by the upper shot roller 50, the transfer operation of the label L is temporarily stopped (T2). . At this time, the upper end of the label L (L2) is held between the feed belt 46 of the label transfer means 40 and the label opening 21.

  In addition, after the label transfer means 40 starts to be driven and until the label L transfer operation is temporarily stopped (T0 to T2), the base material supply unit 10 sends the label forming base material LM downward. Then, the label forming substrate LM is fitted into the label opening 21 of the mandrel 20, and the lower end of the label forming substrate LM is transferred to the lower half of the label opening 21 by the label transfer means 40, and the label is formed from the cutting position. The distance to the lower end of the substrate LM matches the label length. And while the label transfer means 40 stops driving, the base material cutting unit 30 cuts the label forming base material LM, so that the gap between the feed belt 46 of the label transfer means 40 and the label opening 21 is reached. The label L is separated while being held.

  When the predetermined time has elapsed after the label transfer unit 40 stops driving (T3), both the label transfer unit 40 and the upper shot roller 50 restart driving, and the upper and lower layers fitted on the mandrel 20 are restarted. The two labels L are slightly transferred downward, and the lower label L (L2) is delivered from the label transfer means 40 to the upper shot roller 50. At this time, the moving speed Vb1 of the feed belt 46 of the label transfer means 40 and 1/2 of the peripheral speed Vc1 of the upper shot roller 50 are set to be substantially equal.

  As described above, when the upper shot roller 50 disposed in a state inclined by θ = 60 degrees with respect to the axis of the mandrel 20 is rotated, the mandrel 20 is sandwiched between the upper shot roller 50 and the upper shot roller 50. Since the label L is sent downward at the peripheral speed Vc1 × cos θ = Vc1 / 2 of the upper shot roller 50, the delivery speed of the label L between the label transfer means 40 and the upper shot roller 50 is the label transfer means. 40 and the upper shot roller 50 match.

  However, in this label fitting apparatus 1, when the label L is delivered from the feed belt 46 of the label transfer means 40 to the upper shot roller 50, the feed belt 46 and the upper shot roller 50 do not grip the label L at the same time. The distance between the label transfer means 40 and the upper shot roller 50 is set so that the upper shot roller 50 can receive the label L after the label L is separated from the feed belt 46.

  The label transfer means 40 performs a stop operation (deceleration-stop) as soon as the label L leaves the feed belt 46, but the upper shot roller 50 detects the lower end portion of the label L by the label detection sensor 70. Until the label L is detected by the label detection sensor 70 (T4), the stop signal of the shot roller 50 is output and the stop operation (deceleration-stop) is executed.

  In this way, the standby state shown in FIGS. 1 and 2 is entered, and the same operation is repeated thereafter.

  As described above, since the inclination angle of the upper shot roller 50 and the lower shot roller 60 with respect to the central axis of the mandrel 20 is 60 °, when the peripheral speed of the upper shot roller 50 and the lower shot roller 60 is V, The delivery speed Vf of the label L to the lower side by the shot roller 50 and the lower shot roller 60 = V × cos 60 °, and the rotational speed (peripheral speed) of the label L Vr = V × sin 60 °. This will be referred to as the “transmission direction equivalent peripheral speed” of the upper shot roller 50 and the lower shot roller 60.

  As described above, in this label fitting apparatus 1, as shown in FIGS. 7A and 7B, the shot roller feed direction equivalent peripheral speed corresponds to the fitting speed of the conventional label fitting apparatus. The label L that is fitted on the mandrel 20 by the lower shot roller 60 that is always rotating at a constant speed at the fitted circumferential speed V1 that is a circumferential speed in the delivery direction that is greater than the final delivery circumferential speed V0 is the body of the bottle container B. Since the single shot roller is intermittently driven as shown in FIG. 5B, the shot roller starts to rotate and the predetermined fitting speed (shot roller) Unlike the conventional label fitting apparatus that requires a certain amount of acceleration time to reach the final delivery peripheral speed V0), the speed of fitting the label L from the start of fitting (the lower shot roller 60 covered). It is sent at the fitting speed V1) It can be. Accordingly, the fitting time T of the label fitting device 1 can be greatly shortened compared to the fitting time t of the conventional label fitting device, and accordingly, the folding diameter of the label L can be reduced. The effect of being able to be obtained. More specifically, for example, when a label L having a length of 160 mm is fitted by a conventional label fitting device, the fitting time t is 40.5 ms, and the movement distance of the bottle container in the meantime is 8.3 mm. However, when the same label L is fitted to the bottle container B using the label fitting apparatus 1, the fitting time T is 7.6 ms, and the movement distance of the bottle container B during that time is 1.57 mm. Therefore, when this label fitting apparatus 1 is used, the folding diameter of the label L can be reduced by about 3.5 mm compared with the case where a conventional apparatus is used. In addition, the area of each shaded display portion in FIGS. 7A and 7B indicates the moving distance of the label when the label is fitted, and in the label fitting apparatus 1 shown in FIG. The shaded display portion and the shaded display portion in the conventional fitted device shown in FIG.

  When the label L is fitted onto the body of the bottle container B by a single shot roller that rotates intermittently as in the conventional label fitting device, this corresponds to the final delivery peripheral speed V0 of the shot roller that rotates intermittently. Although the rotation speed cannot be extremely increased, in this label fitting apparatus 1, the lower shot roller 60 that continuously rotates the label L sent by the upper shot roller 50 that rotates intermittently is received by the lower portion of the bottle container B. Since the double shot roller system to be fitted is adopted, it is possible to increase the rotation speed of the lower shot roller 60 that rotates continuously to about three times the rotation speed of the upper shot roller 50 that rotates intermittently. Compared with the label fitting device, the fitting time of the label L can be dramatically shortened.

  Moreover, in this label covering apparatus 1, since both the upper shot roller 50 and the lower shot roller 60 are inclined by the same angle with respect to the axis of the mandrel 20, the label L rotates in the circumferential direction, It is delivered from the upper shot roller 50 to the lower shot roller 60, and the delivery of the label L from the upper shot roller 50 to the lower shot roller 60 can be performed smoothly.

  In the above-described embodiment, the lower shot roller 60 is constantly fixed at a fitted peripheral speed V1 that is about three times the final delivery peripheral speed V0 of the shot roller corresponding to the fitted speed of the conventional label fitting apparatus. However, the present invention is not limited to this, and as shown in FIGS. 8A and 8B, the peripheral speed of the lower shot roller 60 is set to the final delivery of the shot roller in the conventional label fitting apparatus. It is also possible to match the peripheral speed V0. In this case as well, the fitting time T1 can be shortened compared to the fitting time t of the conventional label fitting device. The effect that the folding diameter can be reduced is obtained. 8 (a) and 8 (b), the area of each shaded display portion indicates the moving distance of the label when the label is fitted, and the label fitting apparatus shown in FIG. 8 (a). The shaded display portion in FIG. 1 and the shaded display portion in the conventional fitted device shown in FIG.

  Moreover, in each embodiment mentioned above, although the low-order shot roller 60 is always rotating at constant speed with the to-be-fitted peripheral speed V1 or V0 corresponding to a to-be-fitted speed, it is not limited to this, FIG. As shown in FIG. 5, after the lower shot roller 60 receives the label L at the delivery direction converted peripheral speed substantially the same as the final delivery peripheral speed Vm of the upper shot roller 50, the lower shot roller 60 has the output direction converted peripheral speed corresponding to the fitted speed. The speed is increased to a final peripheral speed Vh, and after the label L has been completely fitted, the speed is gradually decreased to a speed substantially equal to the final delivery peripheral speed Vm of the upper shot roller 50. .

  Further, as shown in FIG. 10, after the lower shot roller 60 receives the label L at a sending direction conversion peripheral speed substantially the same as the final sending peripheral speed Vm of the upper shot roller 50, the lower shot roller 60 increases to the final peripheral speed Vh. You may make it complete a covering work in the middle.

  As described above, if the lower shot roller 60 increases the speed after receiving the label L at the sending direction conversion peripheral speed substantially the same as the final sending peripheral speed Vm of the upper shot roller 50, the shot roller is moved from the stopped state. Unlike the conventional film fitting apparatus that accelerates to the fitting speed, the acceleration time required to reach the predetermined fitting speed is shortened, and as a result, the fitting time is shortened compared to the conventional film fitting apparatus. In connection with this, the effect that the folding diameter of a cylindrical film can be made small is acquired.

  In these embodiments, at the same time the lower shot roller 60 receives the label L, the label L moves away from the upper shot roller 50, and the lower shot roller 60 starts to accelerate immediately. If the roller 50 and the lower shot roller 60 are rotating at substantially the same peripheral speed, the lower shot roller 60 receives the label L just before the label L leaves the upper shot roller 50, and the label L After leaving the upper shot roller 50, the lower shot roller 60 may start increasing the speed.

  Further, in each of the above-described embodiments, the label L folded in a sheet shape is opened by being fitted on the mandrel 20, and the label L fitted on the mandrel 20 is rotated in the circumferential direction by the lower shot roller 60. Since the cylindrical label L spreads outward in the radial direction and the lower end side of the label L that protrudes from the mandrel 20 is unlikely to be bent forward, the label covering shown in FIGS. Like the fitting device 1a, a groove 28 that extends in the transport direction of the bottle container B and that allows the head of the bottle container B to pass is formed at the lower end of the label shaping section 25 (lower half 25b) of the mandrel 20. When the bottle container B passes immediately below the mandrel 20, the small diameter head of the bottle container B enters the groove 28, so that the bottle container B is manned. When passing directly under the rel 20, the lower end of the mandrel 20 (label shaping unit 25) and the large-diameter barrel of the bottle container B are in close proximity, and the label L that has jumped out of the mandrel 20 does not sag at all. Thus, since it begins to be fitted onto the body of the bottle container B, the label L can be fitted onto the bottle container B more reliably.

  In the above-described embodiment, the guillotine-type substrate cutting unit 30 is disposed on the upstream side of the mandrel 20. However, the present invention is not limited to this. For example, the label cover shown in FIGS. As in the fitting device 1 b, a circle cutter 30 </ b> A that cuts the label forming substrate LM opened by the mandrel 20 to a predetermined length may be disposed so as to surround the mandrel 20.

  In this label fitting apparatus 1b, instead of the label transfer means 40 mounted on the label fitting apparatus 1 for conveying the label L by belt, roller units 40C, 40D comprising two upper and lower rollers 47, 48 are provided. The label transfer means 40 provided is employed, and the label formation base LM is sent out by the label transfer means 40 so that the distance from the cutting position to the lower end of the label formation base LM is the same as the length of the label L. In this state, the height position of the upper shot roller 50 is set so that a slight gap (for example, about 5 mm) is formed between the lower end of the label forming substrate LM and the upper shot roller 50.

  In this label fitting apparatus 1b, the label L is delivered to the upper shot roller 50 as follows. First, after the label transfer means 40 sends out the label forming substrate LM by a predetermined amount so that the distance from the lower end of the label forming substrate LM to the cutting position is the same as the length of the label L, the feeding operation is stopped. Subsequently, the label L is separated from the label forming substrate LM by the circle cutter 30A. Thereafter, the label transfer means 40 slightly sends out the label forming base material LM, whereby the separated label L is slightly pushed out downward by the label forming base material LM, and the feeding operation of the label transfer means 40 after cutting is performed. At this time, the label L is held by the upper shot roller 50 which has started rotating, and the delivery of the label L is completed. The upper shot roller 50 that has received the label L stops rotating and waits in a state in which the label L is held until the subsequent fitting timing.

  In each of the above-described embodiments, the upper shot roller 50 and the lower shot roller 60 are inclined by 60 degrees with respect to the axis of the mandrel 20, but the present invention is not limited to this. The inclination angle of the upper shot roller 50 and the lower shot roller 60 can be set at about 5 to 85 degrees. However, in order to obtain the centrifugal force while obtaining the feeding speed, it is preferably 30 to 70 degrees. 70 degrees is more preferable.

  In the above-described embodiments, the inclination angles of both the upper shot roller 50 and the lower shot roller 60 are set to the same angle. However, the present invention is not limited to this, and the upper shot roller 50 and the lower shot roller are not limited thereto. It is also possible to change the tilt angle at 60. However, the inclination angle of the upper shot roller 50 and the lower shot roller 60 is set to the same angle, and the circumference of the upper shot roller 50 and the lower shot roller 60 when the label L is transferred from the upper shot roller 50 to the lower shot roller 60 is set. Needless to say, when the speed is set to the same speed, the label L can be smoothly and reliably transferred from the upper shot roller 50 to the lower shot roller 60.

  Further, in each of the above-described embodiments, both the upper shot roller 50 and the lower shot roller 60 are inclined with respect to the axis of the mandrel 20, but the present invention is not limited to this. A state where no tilt is made, that is, a state where the rotation axis of the upper shot roller 50 and the axis of the mandrel 20 are 90 degrees may be used.

  In each of the above-described embodiments, the upper shot roller 50 and the lower shot roller 60 having the same diameter are used. However, the present invention is not limited to this, and the lower shot roller is used to increase the peripheral speed of the lower shot roller. The diameter of the roller 60 may be larger than the diameter of the upper shot roller 50.

  Further, in each of the above-described embodiments, the lower shot roller 60 is disposed at the lower end position of the mandrel 20. However, the lower shot roller 60 may be disposed at a position below the mandrel 20. It is not limited to the lower end position.

  Further, the mandrel does not need to be entirely formed of a rigid metal body or the like. For example, a hanging plate spring is continuously provided at the lower end of the label shaping unit 25 in the above-described embodiment, and the lower shot roller is provided. When adopting a configuration in which a label is sandwiched between the leaf springs, the leaf springs are also included in the mandrel components.

  Moreover, in embodiment mentioned above, although the label L was cut | disconnected from the elongate label formation base material LM, and the label fitting apparatus 1, 1a, 1b fitted to the trunk | drum of the bottle container B was demonstrated, it is limited to this. However, the film covering apparatus of the present invention opens a tubular film folded into a sheet shape, such as a cap seal covering apparatus that fits a cylindrical cap seal on the mouth of a container. However, the present invention can be applied to various apparatuses that are fitted on a fitting body such as a container.

  The present invention can be used as a device for fitting a tubular film such as a shrink label or a cap seal to a fitting body such as a container.

1, 1a, 1b Label fitting device (film fitting device)
DESCRIPTION OF SYMBOLS 1A Label control apparatus 2 Bottle conveyance apparatus 2A Container conveyance control apparatus 2a Conveyor 2b Conveyor motor 2c Container pitch cutting apparatus 2d Container pitch cutting motor 10 Base material delivery unit 10a Pitch feed motor 11 Drive roller 12 Follower roller 20 Mandrel 21 Label opening 21a Recessed portion 22 Upper roller 23 Middle roller 24 Lower roller 25 Label shaping portion 25a Upper half portion 25b Lower half portion 26 Roller 27 Roller 28 Groove portion 30 Substrate cutting unit 30A Circle cutter 30a Movable blade motor 31 Fixed blade 32 Movable blade 40 Label Transfer means 40a Feed belt motor 40A, 40B Feed belt unit 40C, 40D Roller unit 41 Drive pulley 42, 43, 44, 45 Driven pulley 46 Feed belt 47, 48 Roller 0 Upper shot roller 51 Shot roller motor 60 Lower shot roller 61 Shot roller motor 70 Label detection sensor 71 Reflection mirror 72 Bottle detection sensor 73 Reflection mirror 81, 82 Inverter 83 Operation display device 84, 85, 86, 87a, 87b Servo amplifier 88 , 89 Sensor amplifier B Bottle container (fit body)
L label (tubular film)
LM label forming substrate

Claims (5)

The cylindrical film fitted on the mandrel is sequentially sent downward while the cylindrical film of a predetermined length formed by sequentially cutting the cylindrical long film is opened by fitting on the mandrel. In the film fitting apparatus adapted to fit the tubular film to the fitted body passing directly under the mandrel,
Film cutting means for cutting a long film into a cylindrical film of a predetermined length by a cutter;
Film transfer means for transferring a cylindrical film or a long film downward while synchronizing with the film cutting means;
The cylindrical film disposed below the film cutting means and the film transporting means and fitted on the mandrel is placed in a predetermined state in accordance with the passing timing of the fitted body from the standby state sandwiched between the film and the mandrel . A high-order shot roller that rotates intermittently to perform the operation of sending downward at the delivery speed ;
The cylindrical film sent to the lower side by the upper shot roller is arranged so as to be always sandwiched between the mandrel, and the cylindrical film sent to the lower side by the upper shot roller at a predetermined feeding speed is arranged with the mandrel. The lower shot roller that rotates continuously and performs the operation of fitting the tubular film to the fitting body that passes directly under the mandrel by receiving and continuously sending out by sandwiching in between,
The interval between the sandwiching position of the tubular film by the upper shot roller and the sandwiching position of the tubular film by the lower shot roller is set larger than the length of the tubular film,
The lower shot roller is disposed in a state in which the rotation shaft is inclined with respect to the axis of the mandrel. When the tubular film is sandwiched between the mandrel and the lower shot roller, A film-covering device, characterized in that a sending direction-converted peripheral speed converted to a peripheral speed rotates at a constant speed at a rotational speed corresponding to a preset covering speed.   The film covering apparatus according to claim 1, wherein a downward feeding speed of the tubular film by the lower shot roller is greater than a downward feeding speed of the tubular film by the upper shot roller. The cylindrical film fitted on the mandrel is sequentially sent downward while the cylindrical film of a predetermined length formed by sequentially cutting the cylindrical long film is opened by fitting on the mandrel. In the film fitting apparatus adapted to fit the tubular film to the fitted body passing directly under the mandrel,
Film cutting means for cutting a long film into a cylindrical film of a predetermined length by a cutter;
Film transfer means for transferring a cylindrical film or a long film downward while synchronizing with the film cutting means;
The cylindrical film disposed below the film cutting means and the film transporting means and fitted on the mandrel is placed in a predetermined state in accordance with the passing timing of the fitted body from the standby state sandwiched between the film and the mandrel . A high-order shot roller that rotates intermittently to perform the operation of sending downward at the delivery speed ;
The cylindrical film sent to the lower side by the upper shot roller is arranged so as to be always sandwiched between the mandrel, and the cylindrical film sent to the lower side by the upper shot roller at a predetermined feeding speed is arranged with the mandrel. The lower shot roller that rotates continuously and performs the operation of fitting the tubular film to the fitting body that passes directly under the mandrel by receiving and continuously sending out by sandwiching in between,
The lower shot roller is disposed with its rotation axis inclined with respect to the mandrel axis, and when the cylindrical film is received from the upper shot roller, the peripheral speed of the upper shot roller in the cylindrical film feeding direction is The peripheral speed in the feed direction converted to is substantially equal to the peripheral speed in the feed direction converted to the peripheral speed in the cylindrical film feed direction of the lower shot roller. A film fitting apparatus characterized in that the speed is increased after being separated from a roller.   The film fitting apparatus according to claim 1, 2 or 3, wherein the upper shot roller is disposed in a state where a rotation shaft thereof is inclined with respect to an axis of the mandrel. The to-be-inserted body has a smaller head than the trunk,
At the lower end of the mandrel, a groove is formed that extends in the conveying direction of the fit object,
The film fitting apparatus according to claim 1, 2, 3 or 4, wherein when the fitted body passes immediately below the mandrel, a small-diameter head of the fitted body passes through the groove portion.

Images