JP5616651B2 - Film fitting device - Google Patents

Description

  The present invention relates to a film-fitting device for fitting a tubular film such as a shrink label or a cap seal to a fitting object such as a container, and in particular, a projection having protrusions and protrusions protruding outward in the radial direction formed on the outer peripheral surface. The present invention relates to a film fitting apparatus capable of smoothly and reliably fitting a tight cylindrical film to a fitting body.

  An example of this type of film fitting apparatus is shown in FIG. The film covering device 70 is sent out by a long film sending means 71 that pulls out a long film LF from a raw roll (not shown) mounted on a roll feeder, and the long film sending means 71. By cutting the long film LF coming into a predetermined length, a film cutting means 72 for forming individual tubular films F, and the tubular film F separated from the long film LF by the film cutting means 72 are covered. A metal mandrel 73 that opens in a predetermined state by fitting, a film transfer unit 74 that transfers the long film LF fitted to the mandrel 73 to the lower end side of the mandrel 73, and a mandrel by the film transfer unit 74 The cylindrical film F transferred to the lower end portion of 73 is connected to the mandrel 73 by the delivery rollers 75a and 75a. And a film sending means 75 for sending the film to a film fitting position α directly below the mandrel 73 at a predetermined timing. The cylindrical film F shaped into a predetermined opening state by the mandrel 73 is fed to the film. By means 75, the mandrel 73 is sequentially sent out at a predetermined timing so as to be fitted into the container B which is sequentially conveyed to the film fitting position α.

Japanese Patent No. 2688573

  However, the container B to which the tubular film F is to be fitted has, for example, protrusions p such as ribs protruding outward in the radial direction on the outer peripheral surface as shown in FIGS. In the case of a flat container having a circular planar shape, as described above, the tubular film F fitted to the lower end portion of the mandrel 73 is simply sent directly below by the sending rollers 75a and 75a of the film sending means 75 at a predetermined timing. When the tight film film F whose diameter is set to be slightly larger than the outer diameter of the container B is to be fitted by the film covering device 70, the sending timing of the tubular film F by the film sending means 75 is slightly. As shown in FIG. 12, the cylindrical shape sent out by the film sending means 75 is merely shifted or the supply timing of the container B to the film fitting position α is slightly shifted. Leading edge of Irumu F is will be caught by the projection p of the vessel B, there is a problem can not be fitted over the tubular film F to smoothly and reliably container B.

  Accordingly, an object of the present invention is to provide a film capable of smoothly and surely fitting a tight cylindrical film, even if it is a fitting body in which protrusions and protrusions projecting radially outward are formed on the outer peripheral surface. The object is to provide a fitting device.

  In order to solve the above-mentioned problem, the invention according to claim 1 is a method in which a tubular film shaped into a predetermined opening state by being fitted on a mandrel is sequentially sent out from the mandrel by a film sending means. In a film fitting apparatus that fits on a fitting body that is sequentially conveyed to a fitting position on the lower side of the mandrel, the film delivery means includes a lower end portion of the mandrel on the upstream side in the conveyance direction of the fitting body An upstream delivery roller that sandwiches the tubular film therebetween, and a downstream delivery roller that sandwiches the tubular film between the lower end portion of the mandrel on the downstream side in the conveying direction of the fitted body, Before being transported to the fitting position, both the upstream delivery roller and the downstream delivery roller are driven so that a predetermined position of the tubular film is sandwiched between the mandrel and the cylinder. The film is caused to stand by in the inclined state by lowering the downstream side in the conveying direction of the object to be fitted, and both the upstream sending roller and the downstream sending roller of the film sending means are driven so that the cylindrical film is The peripheral speed of the upstream-side delivery roller is set to be larger than the peripheral speed of the downstream-side delivery roller when fitted from the mandrel to the fitted body that has been conveyed to the fitted position. The film covering apparatus is provided.

  In the invention according to claim 2, the cylindrical film shaped into a predetermined opening state by being fitted on the mandrel is sequentially sent out from the mandrel by the film sending means, so that the lower side of the mandrel is provided. In a film fitting apparatus that fits on a fitting object that is intermittently conveyed while sequentially stopping at the fitting position, the film delivery means is connected to the lower end of the mandrel on the upstream side in the conveying direction of the fitting object. An upstream delivery roller that sandwiches the tubular film therebetween, and a downstream delivery roller that sandwiches the tubular film between the lower end portion of the mandrel on the downstream side in the conveying direction of the fit object, and the fit object is covered Before being transported to the fitting position, both the upstream delivery roller and the downstream delivery roller are driven to sandwich a predetermined position of the tubular film between the mandrel and the tubular film. The tubular film is made to stand by inclining by lowering the downstream side in the conveying direction of the object to be fitted in the rumm, and driving both the upstream sending roller and the downstream sending roller of the film sending means. By being fed from the mandrel, the circumferential speed of the upstream delivery roller and the circumferential speed of the downstream delivery roller are set to the same speed when fitted on the fitted body that has been conveyed to the fitted position. The film covering apparatus is provided.

According to a third aspect of the present invention, in the film fitting apparatus according to the first aspect of the present invention, on the upstream side in the conveying direction of the fitted body at the lower part of the mandrel, the film escape is located above the upstream delivery roller. When the cylindrical film is inclined, the upstream side of the upper half of the cylindrical film in the conveying direction of the fitting body enters the film escape portion.

  As described above, in the film fitting apparatus according to the first and second aspects of the invention, before the fitted body is conveyed to the fitted position, both the upstream delivery roller and the downstream delivery roller are driven. Since the predetermined position of the tubular film is sandwiched between the mandrel and then waiting on the inclined side by lowering the downstream side in the conveying direction of the fitted body in the tubular film, it is conveyed to the fitted position. The outer peripheral surface on the downstream side in the transport direction of the fitted body is caught by the cylindrical film waiting in an inclined state, and the tubular film is securely attached to the fitted body by the subsequent feeding operation by the film feeding means. It is put on. Therefore, even in a flat container having a protrusion on the outer peripheral surface that protrudes radially outward, a tight tubular film does not get caught on the protrusion, as in a conventional film covering device, The tubular film can be securely fitted to the fitted body.

  In particular, in the film fitting apparatus according to the first aspect of the present invention, the cylindrical film is fed from the mandrel by driving both the upstream sending roller and the downstream sending roller of the film sending means, and conveyed to the fitting position. When being fitted to the fitted body, the circumferential speed of the upstream delivery roller is made larger than the circumferential speed of the downstream delivery roller, that is, the upstream delivery speed in the conveying direction of the fitted body is set downstream. Since the upstream side having a large amount of fitting with respect to the mandrel is sent out more quickly than the downstream side in the conveying direction of the fitting body in the tubular film by making the feeding speed higher than the feeding speed, the fitting body is moved to the fitting position. Even in the case of passing without stopping, the tubular film can be securely fitted to the fitted body that passes through the fitted position.

  In the film fitting apparatus according to the second aspect of the invention, since the fitted body is intermittently conveyed while being sequentially stopped at the fitted position, the upstream delivery roller and the downstream side of the film delivery means When the cylindrical film is fed from the mandrel by driving both of the feeding rollers, the peripheral speed of the upstream sending roller and the peripheral speed of the downstream sending roller are set when fitted to the fitted body conveyed to the fitting position. Even if the speed is the same speed, that is, the upstream delivery speed and the downstream delivery speed in the conveying direction of the fit object are the same, the tubular film is securely fitted to the fit object. can do.

Moreover, in the film covering apparatus of the invention according to claim 3 , a film escape portion is formed on the upper side of the upstream delivery roller on the upstream side in the conveying direction of the mounted body at the lower portion of the mandrel, and the tubular film Since the upstream side in the conveying direction of the fit object in the upper half of the tubular film enters the film escape part when tilting the film, even if it is a long tubular film, it is not caught on the mandrel, The film can be smoothly and reliably tilted in a state where the film can be fed by the film feeding means.

It is a front view which shows one Embodiment of the film covering apparatus which concerns on this invention. It is a perspective view which shows the mandrel employ | adopted as the film covering apparatus same as the above. It is a front view which shows the state just before sending of the cylindrical film in a film covering apparatus same as the above. It is a timing chart for demonstrating operation | movement of a film covering apparatus same as the above. It is a timing chart for demonstrating operation | movement of the film covering apparatus which is other embodiment. It is a front view which shows the film covering apparatus which is other embodiment. It is a front view which shows the mandrel employ | adopted as the film covering apparatus same as the above. It is a timing chart for demonstrating operation | movement of a film covering apparatus same as the above. It is a front view which shows the film covering apparatus which is other embodiment. It is a front view which shows the conventional film covering apparatus. (A) is a top view which shows the flat container by which a cylindrical film is fitted by the film fitting apparatus same as the above, (b) is a side view which shows the flat container same as the above. It is explanatory drawing for demonstrating the problem of the conventional film covering apparatus.

  Hereinafter, embodiments will be described with reference to the drawings. As shown in FIG. 1, the film fitting apparatus 1 is configured such that the tubular film F is continuously connected to the long film LF in a state of being folded into a sheet shape while separating the individual tubular films F. By sequentially sending the tubular film F to the film fitting position α, the cylindrical film F is fitted to the body of the container B shown in FIG. The long film sending means 10 for pulling out the long film LF from a raw roll (not shown) mounted on the roll feeder and sending it out, and the long film sending means 10 feeds it. By cutting the long film LF into a predetermined length, the film cutting means 20 for forming the individual tubular film F and the film cutting means 20 A metal mandrel 30 that opens in a predetermined state by fitting the tubular film F separated from the film, and a film transfer means for transferring the long film LF fitted to the mandrel 30 to the lower end side of the mandrel 30 40, a film sending means 50 for sending the tubular film F transferred to the lower end of the mandrel 30 by the film transferring means 40 to the film fitting position α, and a container sequentially conveyed to the film fitting position α. A container detection sensor 60 for detecting B, and each time the container detection sensor 60 detects the container B, the long film delivery means 10, the film cutting means 20, the film transfer means 40, and the film delivery means 50 are predetermined. Control means (not shown) for repeatedly executing a predetermined operation at a predetermined timing.

  As shown in the figure, the long film delivery means 10 includes a driving roller 11 and a driven roller 12 that sandwich the long film LF, a motor 13 that drives the driving roller 11, and a driving force of the motor 13 that drives the driving roller 11. 4 and a power transmission mechanism comprising a belt 16 hung on these pulleys 14 and 15, and as shown in FIG. The driving roller 11 starts to rotate from 0 degree), gradually increases in speed, reaches the highest speed at the processing timing per 130 degrees, and then gradually decelerates and stops driving at the processing timing per 250 degrees. It is like that. In the timing chart shown in FIG. 4, as shown in FIG. 3, the timing at which the container detection sensor 60 detects the container B is set to 0 degree, and as shown in FIG. The timing at which the lower end portion of F slightly protrudes from the lower end portion of the mandrel 30 is 360 degrees.

  As shown in the figure, the film cutting means 20 includes shearing blades 21 and 22 that are opened and closed by moving close to and away from each other, and as shown in FIG. 4, the detection timing of the container B by the container detection sensor 60. The shear blades 21 and 22 at (0 degrees) start to open from the halfway open state, and are fully opened (maximum separation state) at the processing timing per 130 degrees, and then the shear blades 21 and 22 are closed and the per 310 degrees After being fully closed (closest approach state) at the processing timing, the long film LF is cut and then opened again, and at 360 degrees, the shearing blades 21 and 22 are stopped in the initial halfway open state.

  As shown in FIGS. 1 and 2, the mandrel 30 has a wedge-shaped film opening 31 with a tapered upper end, and a circular film shaping portion 35 with a lower end fitted to the lower portion of the film opening 31. The cylindrical film F fitted to the upper end of the film opening 31 is gradually opened by being transferred to the lower side of the film opening 31, and is fitted to the film shaping part 35. By doing so, it is shaped into a circular shape.

  In the lower half of the film opening 31, an upper roller 32, a middle roller 33, and a lower roller 34 are provided on the upstream and downstream side surfaces in the conveying direction of the container B with the peripheral surfaces slightly protruding. Each of the film openings 31 is attached so as to be rotatable, and a recess 31 a that exposes a lower peripheral surface of the middle roller 33 is formed on a side surface of the film opening 31.

  The film shaping unit 35 is attached to the film opening 31 that rises along the front and back of the film opening 31 from the front side and the back side of the main body 35a and the main body 35a. The roller 36 is rotatable on the outer peripheral surface of the main body 35a with the peripheral surface slightly protruding from the upstream and downstream side surfaces in the transport direction of the container B. It is attached.

  As shown in FIG. 1, the film transfer means 40 is sandwiched between the mandrel 30 and the tubular film F cut from the long film LF by the film cutting means 20 while being fitted to the mandrel 30. It is composed of an upstream feed belt unit 40A and a downstream feed belt unit 40B disposed on the upstream side and the downstream side in the conveying direction of the container B in the mandrel 30 to be transferred to the lower side of the mandrel 30, respectively. Each of the feed belt unit 40A and the downstream feed belt unit 40B includes a drive pulley 41, four driven pulleys 42, 43, 44, and 45, and a feed belt 46 that spans them.

  The drive pulley 41 and the driven pulleys 44 and 45 are disposed at positions corresponding to the lower roller 34, the upper roller 32, and the middle roller 33 of the film opening 31 in the mandrel 30, respectively. 32 and the middle roller 33 are sandwiched with a cylindrical film F via a feed belt 46.

  The driving pulley 41 and the driven pulleys 44 and 45 of the upstream feed belt unit 40A and the downstream feed belt unit 40B are rotatably supported by the same support member 47, and the driven pulley 45 is a film opening in the mandrel 30. The mandrel 30 is supported via the intermediate roller 33 by entering the hollow portion 31 a formed in the portion 31.

  As shown in FIG. 4, the feed belt 46 starts to move from the detection timing (0 degree) of the container B by the container detection sensor 60 and gradually increases, as with the drive roller 11 of the long film delivery means 10. The driving speed is highest at the processing timing per 130 degrees, and the driving is stopped at the processing timing per 250 degrees while decelerating thereafter. Then, the film cutting means 20 starts moving again from the processing timing per 310 degrees when the tubular film F is separated from the long film LF, gradually increases to the processing timing per 335 degrees, and then gradually decelerates again. However, by stopping the driving at 360 degrees, the tubular film F is transferred to the lower end of the mandrel 30 at a predetermined pitch.

  As shown in FIG. 1, the film delivery means 50 is transported to the lower end of the mandrel 30 by the film transport means 40 disposed at positions corresponding to the rollers 36 of the film shaping section 35 in the mandrel 30, respectively. An upstream shot roller 51 and a downstream shot roller 52 that receive the tubular film F that is received and sandwiched between the rollers 36 and 36 are provided. The downstream shot roller 52 projects downward from the lower surface of the mandrel 30. In order to avoid this, the diameter is smaller than that of the upstream shot roller 51. Thus, when the container B passes the film fitting position α, the upper end portion of the tubular film F fitted to the container B is not caught by the downstream shot roller 52.

  As shown in FIG. 4, the upstream shot roller 51 and the downstream shot roller 52 start rotating from the detection timing (0 degree) of the container B by the container detection sensor 60, and gradually increase the speed while increasing the speed. The cylindrical film F is sent out from the lower end portion of the mandrel 30 by stopping the driving at the processing timing of 80 degrees while gradually decelerating after that, and is sent to the film fitting position α. It fits into the container B that has been transported. Thereafter, the feed belt 46 of the film transfer means 40 starts to rotate again from the processing timing per 310 degrees at which the movement is resumed, gradually increases to the processing timing per 335 degrees, and then gradually decreases again at 360 degrees. By stopping the driving, as shown in FIG. 1, the next cylindrical film F is received from the film transfer means 40, and the lower end of the cylindrical film F protrudes from the lower end of the mandrel 30. 30. Thereafter, as shown in FIG. 4, only the downstream shot roller 52 starts to rotate again, gradually increases to a predetermined speed, and then stops driving while gradually decelerating, as shown in FIG. In addition, until the next container B is transported to the film fitting position α, the cylindrical film F is made to stand by in an inclined state in which the downstream side in the transport direction of the container B is lowered.

  Thus, since the cylindrical film F is waiting in the inclined state in which the downstream side in the transport direction of the container B is lowered, as described above, both the upstream shot roller 51 and the downstream shot roller 52 are driven. When the tubular film F is fitted to the container B that has been transported to the film fitting position α by sending the tubular film F from the mandrel 30, processing timings 0 to 80 in the timing chart of FIG. In order to recover the upstream delay in the transport direction of the container B in the tubular film F, the peripheral speed of the upstream shot roller 51 is made larger than the peripheral speed of the downstream shot roller 52, so that the tubular film F The upstream delivery speed in the conveyance direction of the container B is increased.

  As described above, in the film fitting apparatus 1, before the container B is conveyed to the film fitting position α, both the upstream shot roller 51 and the downstream shot roller 52 are driven, and the lower end portion is After the tubular film F is sandwiched between the mandrel 30 and protruding from the lower end portion of the mandrel 30, only the downstream shot roller 52 is driven, so that the downstream side of the tubular film F in the transport direction of the container B Since the container B that has been transported to the film fitting position α is caught by the cylindrical film F that is waiting in the tilted state, the container B on the downstream side in the transport direction of the container B is The protrusion p such as a rib protruding from the outer peripheral surface is covered with the tubular film F. Therefore, the tubular film F is securely fitted to the container B by the feeding operation by the upstream shot roller 51 and the downstream shot roller 52 of the film feeding means 50 that is subsequently executed, and the tubular film is simply placed directly below the mandrel. A tight cylindrical film is not caught by the protrusion p like the conventional film covering apparatus to send out.

  In particular, in the film fitting apparatus 1, both the upstream shot roller 51 and the downstream shot roller 52 of the film sending means 50 are driven to send the tubular film F from the mandrel 30, thereby providing a film fitting position α. When the container B is fitted into the container B, the peripheral speed of the upstream shot roller 51 is made larger than the peripheral speed of the downstream shot roller 52, that is, the upstream delivery speed in the transport direction of the container B is increased. By making the delivery speed higher than the downstream delivery speed, the upstream side of the tubular film F in which the fitting amount with respect to the mandrel 30 is larger than the downstream side in the conveyance direction of the container B is quickly delivered. Even when passing without stopping at the fitting position α, the tubular film F is securely fitted to the container B that passes through the film fitting position α. It can be.

  When the container B is transported while being temporarily stopped at the film fitting position α, the upstream side where the fitting amount with respect to the mandrel 30 is larger than the downstream side of the tubular film F in the conveying direction of the container B is always sent out quickly. Since it is not necessary, as shown in the timing chart of FIG. 5, by driving both the upstream shot roller 51 and the downstream shot roller 52 of the film delivery means 50 to send the tubular film F from the mandrel 30, Even when the peripheral speed of the upstream shot roller 51 and the peripheral speed of the downstream shot roller 52 are driven at the same speed when the container B is transferred to the container B that has been transported to the film fitting position α, the cylindrical film F is The container B can be securely fitted.

  Moreover, in each embodiment mentioned above, although the lower part of the mandrel 30 has faced directly below so that the lower end surface of the film shaping part 35 may become substantially horizontal, it is not limited to this, For example, FIG. As shown in FIG. 7, the lower end surface of the film shaping portion 35A in the mandrel 30A is inclined so as to face the upstream side in the transport direction of the container B, and the cylindrical film F is moved to the lower end surface of the film shaping portion 35A in the mandrel 30A. It may be made to stand by in the state made to incline from the main-body part 35Aa of 35 A of film shaping parts, in addition to making it incline in the direction substantially orthogonal to.

  In this film fitting apparatus 1A, as shown in the figure, downstream shot rollers 52Aa and 52Ab are disposed at the same height position and lower end position as the upstream shot roller 51 in the film shaping section 35A, respectively. Rollers that sandwich the tubular film F between the downstream shot rollers 52Aa and 52Ab are also attached to the film shaping section 35A in 30A at positions corresponding to the downstream shot rollers 52Aa and 52Ab.

  The basic operation of the film fitting apparatus 1A is the same as the operation when the container B in the film fitting apparatus 1 described above is transported while being temporarily stopped at the film fitting position α, but the timing chart of FIG. As shown in FIG. 5, when the processing timing is 360 degrees or later, not only the downstream shot rollers 52Aa and 52Ab are driven, but also the upstream shot roller 51 is driven at a lower speed than the peripheral speed of the downstream shot rollers 52Aa and 52Ab. In the standby state of the tubular film F, as shown in FIG. 6, the upper end portion of the tubular film F is moved by the upstream shot roller 51 and the lower downstream shot roller 52Ab. It is sandwiched between the lower end of (film shaping part 35A).

  As described above, in the film fitting apparatus 1A, the lower end surface of the mandrel 30A is inclined so as to face the upstream side in the conveyance direction of the container B, so the conveyance direction of the container B in the cylindrical film F in the standby posture Even if the amount of fitting with respect to the upstream and downstream mandrels 30A is the same and the container B is allowed to pass through without stopping at the film fitting position α, as in the film fitting apparatus 1 described above, When the film F is delivered from the mandrel 30A by the film delivery means 50A, the peripheral speed of the upstream shot roller 51 is set to that of the downstream shot roller 52Ab when the film F is fitted to the container B that has been transported to the film fitting position α. It is not necessary to make it larger than the peripheral speed, and it is possible to set the upstream delivery speed and the downstream delivery speed in the transport direction of the container B to the same speed.

  FIG. 9 shows a case where a long tubular film Fa is covered on a container Ba in which a rib is projected on the lower end edge of the lid part which opens and closes the upper end opening and which protrudes radially outward. The film covering apparatus 1B to be fitted is shown. In this film fitting apparatus 1B, while the film shaping part 35B of the mandrel 30B is lengthened, the upstream shot roller is inclined by inclining the upstream side in the transport direction of the container Ba in the film shaping part 35B upward. A film escape portion 30Ba is formed on the upper side of 51, and the upstream side shot roller 51 of the film delivery means 50 that has received the next cylindrical film F from the film transfer means 40, as in the film fitting apparatus 1 described above. And the downstream shot roller 52 is driven to cause the lower half of the tubular film Fa to protrude from the lower end of the mandrel 30B, and then only the downstream shot roller 52 is driven so that the next container Ba is a film. The cylindrical fill in an inclined state with the downstream side in the transport direction of the container Ba lowered until it is transported to the fitted position α. And it is adapted to wait for the Fa.

  In the film fitting apparatus 1B configured as described above, when the tubular film Fa is tilted, the upstream side in the transport direction of the container Ba in the upper half of the tubular film Fa is a film relief formed in the film shaping section 35B. Since it enters the portion 30Ba, the long tubular film Fa can be tilted without being caught by the mandrel 30B while being able to be sent by the film sending means 50. Similarly to the film fitting apparatus 1 described above, the film sending The long tubular film Fa can be reliably fitted to the tall container Ba by the feeding operation by the upstream shot roller 51 and the downstream shot roller 52 of the means 50.

  Moreover, although each embodiment mentioned above demonstrated the film covering apparatus 1, 1A, 1B of the type which cuts the cylindrical film F from the elongate film LF by the film cutting means 20 which the shearing blades 21 and 22 open and close, However, the present invention is not limited to this. A film fitting device that uses a circle cutter to separate the tubular film F from the long film LF or a film fitting that breaks at the perforation formed in the long film LF. The present invention can also be applied to an apparatus. When using a circle cutter, a circumferential groove is formed in the mandrel, and the outer edge of the long film opened by the mandrel is formed on the mandrel while rotating the cutting blade along the outer peripheral surface of the long film. It is only necessary to cut the long film by allowing the cutting blade to enter the circumferential groove, and when breaking at the perforation, each of the breaking rollers that sandwich the long film between the mandrel above and below the perforation, respectively. The long film may be broken at the perforation by providing and making the peripheral speed of the lower breaking roller larger than the peripheral speed of the upper breaking roller.

  Moreover, in each embodiment mentioned above, the case where cylindrical film F and Fa were fitted to the trunk | drum of containers B and Ba in which the protrusions p, such as a rib projecting radially outward over the entire circumference, was formed was described. However, the present invention is not limited to this, and even when a tubular film is fitted to the mouth of a container having a convex portion formed on a part of the outer peripheral surface, such as a hinge portion of a cap, Needless to say, the film-covering device of the invention is useful.

  Moreover, in each embodiment mentioned above, although the diameter of downstream shot roller 52, 52Aa, 52Ab is made smaller than the diameter of the sending roller 75a of the conventional film covering apparatus 70 shown in FIG. 10, it is limited to this. When the containers B and Ba pass through the film fitting position α, the upper ends of the cylindrical films F fitted to the containers B and Ba are not caught by the downstream shot rollers 52, 52Aa, and 52Ab. If so, the downstream shot rollers 52, 52 </ b> Aa, 52 </ b> Ab can be set to have a large diameter as in the conventional film fitting apparatus 70.

  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.

DESCRIPTION OF SYMBOLS 1, 1A, 1B Film covering apparatus 10 Long film delivery means 11 Drive roller 12 Driven roller 13 Motor 14, 15 Pulley 16 Belt 20 Film cutting means 21, 22 Shear blade 30, 30A, 30B Mandrel 30Ba Film escape part 31 Film Opening 31a Depression 32 Upper roller 33 Middle roller 34 Lower roller 35, 35A, 35B Film shaping portion 35a, 35Aa Body portion 35b Mounting portion 36 Roller 40 Film transfer means 40A Upstream feed belt unit 40B Downstream feed belt unit 41 Drive pulley 42, 43, 44, 45 Driven pulley 46 Feed belt 47 Support member 50, 50A Film delivery means 51 Upstream shot roller (upstream delivery roller)
52, 52Aa, 52Ab Downstream shot roller (downstream delivery roller)
60 Container detection sensor B, Ba Container F, Fa Tubular film LF Long film

Claims (3)

The cylindrical film shaped into a predetermined opening state by being fitted on the mandrel is sequentially fed from the mandrel by the film feeding means, so that the film is sequentially conveyed to the fitted position below the mandrel. In the film-fitting device that fits into the fitting,
The film delivery means includes an upstream delivery roller that sandwiches the tubular film between the lower end portion of the mandrel on the upstream side in the transport direction of the fit object, and a lower end of the mandrel on the downstream side in the transport direction of the fit object. A downstream delivery roller that sandwiches the tubular film between the two parts,
Before the fitting body is conveyed to the fitting position, both the upstream delivery roller and the downstream delivery roller are driven to sandwich the predetermined position of the tubular film between the mandrel and the cylinder. Waiting in a tilted state by lowering the downstream side in the conveying direction of the fitted body in the film-like film,
When the tubular film is fed from the mandrel by driving both the upstream-side delivery roller and the downstream-side delivery roller of the film delivery means, and is fitted to the fitting body that has been conveyed to the fitting position. A film-covering device, wherein a peripheral speed of the upstream-side delivery roller is made larger than a peripheral speed of the downstream-side delivery roller. The cylindrical film shaped into a predetermined opening state by being fitted on the mandrel is intermittently sent out from the mandrel by the film delivery means while being sequentially stopped at the fitting position on the lower side of the mandrel. In the film fitting device that fits into the fitting to be conveyed to
The film delivery means includes an upstream delivery roller that sandwiches the tubular film between the lower end portion of the mandrel on the upstream side in the transport direction of the fit object, and a lower end of the mandrel on the downstream side in the transport direction of the fit object. A downstream delivery roller that sandwiches the tubular film between the two parts,
Before the fitting body is conveyed to the fitting position, both the upstream delivery roller and the downstream delivery roller are driven to sandwich the predetermined position of the tubular film between the mandrel and the cylinder. Waiting in a tilted state by lowering the downstream side in the conveying direction of the fitted body in the film-like film,
When the tubular film is fed from the mandrel by driving both the upstream-side delivery roller and the downstream-side delivery roller of the film delivery means, and is fitted to the fitting body that has been conveyed to the fitting position. The film fitting apparatus, wherein the peripheral speed of the upstream delivery roller and the peripheral speed of the downstream delivery roller are the same.   A film escape portion is formed on the upper side of the upstream delivery roller on the upstream side in the conveying direction of the fitted body at the lower portion of the mandrel, and the upper half of the tubular film is inclined when the tubular film is inclined. The film fitting apparatus according to claim 1, wherein an upstream side in a conveyance direction of the fitting body in the film enters the film escape portion.

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