EP2527289A1 - Dispositif et procédé destinés à l'application d'une fermeture à vis - Google Patents

Dispositif et procédé destinés à l'application d'une fermeture à vis Download PDF

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Publication number
EP2527289A1
EP2527289A1 EP11009572A EP11009572A EP2527289A1 EP 2527289 A1 EP2527289 A1 EP 2527289A1 EP 11009572 A EP11009572 A EP 11009572A EP 11009572 A EP11009572 A EP 11009572A EP 2527289 A1 EP2527289 A1 EP 2527289A1
Authority
EP
European Patent Office
Prior art keywords
screw cap
band
contact
guides
screw
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP11009572A
Other languages
German (de)
English (en)
Inventor
Bernd Hoellmueller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Itec Fuell-Und Verschliesstechnik
Original Assignee
Itec Fuell-Und Verschliesstechnik
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Itec Fuell-Und Verschliesstechnik filed Critical Itec Fuell-Und Verschliesstechnik
Publication of EP2527289A1 publication Critical patent/EP2527289A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67B—APPLYING CLOSURE MEMBERS TO BOTTLES JARS, OR SIMILAR CONTAINERS; OPENING CLOSED CONTAINERS
    • B67B3/00—Closing bottles, jars or similar containers by applying caps
    • B67B3/20—Closing bottles, jars or similar containers by applying caps by applying and rotating preformed threaded caps
    • B67B3/204—Linear-type capping machines
    • B67B3/2046—Linear-type capping machines using friction means for screwing the caps, e.g. belts or wheels

Definitions

  • the present invention relates to a device for attaching a screw cap to a container.
  • the present invention further relates to a method for attaching a screw cap to a container.
  • the present invention relates to the use of the device according to the invention and the method according to the invention for attaching a screw cap with attachment.
  • the device according to the invention for attaching a screw cap to a container has a band. Under a band, for example, a belt or belt can be understood.
  • the tape is provided on the device such that it is driven can.
  • the band can be brought into contact with the circumference of a screw cap placed on an opening thread of the container. If the band is driven, the frictional force between the band on the one hand and the screw cap on the other hand causes the screw cap to be turned and screwed onto the opening thread.
  • the belt of the device according to the invention can extend along a straight line or even buckle or bend, so that the contact surface between the belt and the screw cap is much larger than a friction wheel.
  • the desired torque can be transmitted safely and slip-free on the brought into contact with the tape screw cap.
  • a pressing force applied transversely to the screwing direction on the screw cap can be selected to be larger, thanks to the increased contact area or contact surface, so that particularly high torques can be transmitted and very high end torques of the screw cap can be achieved.
  • any band can be used in the device according to the invention.
  • a band having two ends may be used, the band being successively rolled over one end onto a roll during operation of the apparatus and being unrolled from a roll at another end. Following this, a return could be done to the Roll off again.
  • the band in a preferred embodiment of the device according to the invention is an endless or closed band.
  • Such an endless or closed belt can rotate in one of its longitudinal directions without the aforementioned return would be necessary. Consequently, one can speak in this case of a circumferential or annular band.
  • the simple and space-saving installation of the tape should be mentioned.
  • the band can be brought in a particularly preferred embodiment of the device according to the invention in such a contact with the circumference of the screw that the circumference by the band at least partially to achieve a wrap angle is wrapped or embraced.
  • the band is flexible in the area of the desired contact surface or attack surface in order to be able to wrap the screw closure over said wrap angle.
  • the band is designed and arranged such that the wrap angle is at least 30 °, at least 40 ° or at least 50 °.
  • the maximum wrap angle that is, the maximum achievable by the band of the device Wrap angle
  • the maximum wrap angle can be set or changed for the same or constant outer diameter of a screw cap. This can be effected, for example, by the fact that two guides, between which the contact portion of the band which is to be brought into contact with the screw cap, can be changed or adjusted.
  • an interchangeable module including the guides and the strap may be provided to achieve a different maximum wrap angle by replacing the module with another module having the guides closer together or further apart.
  • the band is guided over two guides.
  • the two guides are preferably two rollers, which are particularly preferably designed as freewheeling rollers.
  • the two guides are arranged to each other such that extends between these a contact portion of the band which is to be brought into contact with the circumference of the screw cap.
  • the contact section is thus that of the two sections of the belt extending between the guides, which contacts the screw cap for the purpose of screwing on.
  • the contact portion of the Bandes extending directly between the two guides.
  • the contact portion between the two supports on the guides should not be additionally supported on a component of the device.
  • the contact section can be particularly easily adapted to the contour of the screw cap to achieve, for example, the aforementioned wrap angle without being hindered by a further support to this adjustment.
  • the contact portion can be brought into contact with the screw cap with bending or / and curvature of the contact portion and / or adaptation of the contact portion to the outer contour of the circumference of the screw cap. As already mentioned above, this makes it possible to achieve a particularly large area of contact or contact between the band and the screw cap.
  • the two guides are designed as deflection guides, pulleys or free-running pulleys, which deflect the band by at least 45 °, preferably at least 90 °, to the extent of the device in the region of Keep contact section as small as possible.
  • the tape is guided over a drive roller for driving the tape.
  • the drive roller may have a smooth outer periphery such that the belt is driven by the friction between the drive roller and the belt.
  • the drive roller has an external toothing, which engages in a corresponding toothing on the belt in order to transfer particularly high torques from the drive roller to the belt without the tension of the belt must be particularly high.
  • the drive roller can either form one of the two aforementioned guides or rollers, in which case only the other role could be designed as a free-running role, or be formed separately from the two guides.
  • the drive roller acting as a guide would be adjacent to the contact section, which equally means that the drive roller would also be located relatively close to the screw cap of the container.
  • This can lead to constructive limitations in the design of the drive roller and the associated drive, especially in the area of the contact portion a sufficient margin for subsequent screw caps and containers should be ensured.
  • the second-mentioned alternative is preferred in which the drive roller is formed separately from the two guides. As a result, a greater spacing of the drive roller and the components associated with the drive roller relative to the working area of the device is possible. If the drive roller is formed separately from the two guides, it is further preferred if the drive roller does not engage the contact section, especially since this could hinder or influence the adaptability of the contact section to the outer contour of the screw closure, as has already been indicated above.
  • the distance between the guides is adjustable or variable.
  • the distance between the guides and the length of the contact portion of the band and thus the wrap angle for the same or constant outer diameter of a screw cap can be set or changed.
  • the device is flexibly adaptable to different containers with different screw caps, in particular to different outer diameters of the screw caps.
  • the device according to this embodiment can therefore be used particularly flexibly.
  • the above-described embodiment of the device according to the invention allows a particularly flexible use of the device, however, setting or changing the distance between the guides can lead to a relatively long interruption of the production process.
  • the band, the guides and the drive roller are arranged to form a coherent module on a support member, the module interchangeable connectable or connected to the device.
  • the device according to this embodiment In order to adapt the device according to this embodiment to new containers with larger or smaller screw caps, only the one module has to be exchanged for another module, in which the contact portion is formed correspondingly larger or smaller.
  • the distance between the guides is adjusted or changed by simply replacing the existing guides with two new guides at a different distance from each other when the module is replaced.
  • the module is preferably connectable with the device to produce a rotational drive connection between the drive roller and a driven or driven part.
  • only one step is required, namely, connecting the module to the device to produce the rotary driving connection between the drive roller and the driven or driven part of the device.
  • the named rotational drive connection is preferably a positive connection or / and a plug connection. So here, for example, a kind of spline would be conceivable.
  • a further method step which is to follow the connection of the module to the device and to ensure the rotary driving connection between the drive roller and the driven or driven part of the device, is not necessary.
  • one module can be replaced by the other module without a major delay in the production process.
  • the distance between the guides of the first module can be changed or adjusted to replace the second module again against the first module, as soon as the size of the screw to be screwed changes again, this in turn leads to no significant interruption of the production process, especially since the module replacement is relatively easy and fast to carry out.
  • longitudinal guides are provided in a further advantageous embodiment of the device according to the invention within which the tape in at least one width direction of the tape, preferably in both width directions of the tape, can be supported or supported.
  • Said longitudinal guides which may for example consist of an elongated groove or recess in which the band rests, may be provided, for example, in the drive roller and / or the guides.
  • the guides are formed on the support part of the module.
  • a further preferred embodiment variant has proven in this connection, in which a longitudinal guide leads to the one guide, while another longitudinal guide leads away from the other guide.
  • the band in the device according to the invention could consist of the same material throughout.
  • the band is formed in a particularly advantageous embodiment of the device according to the invention at least two layers. Thanks to the two-ply design, for example, a layer for increased friction between this layer and the screw can be designed, while the other layer is designed to achieve a particularly high strength of the strip in the longitudinal direction.
  • the at least two-layered band has a front position which can be brought into contact with the screw cap or which has a greater coefficient of friction and / or lower strength than a further layer of the band facing away from the screw cap.
  • the front layer coming into contact with the screw cap is particularly designed to achieve a strong frictional force and / or to contribute less to the strength of the entire two- or multi-ply band, especially since the lower strength of the front ply the screw cap facing away from another position or its increased strength can be compensated.
  • the coefficient of friction of the front layer here corresponds to the coefficient of friction between the pair of materials of the material of the front layer with the material of the screw, while the coefficient of friction of the other layer denotes the coefficient of friction of the material pairing of the material of the further layer with the material of the same screw cap.
  • the belt has a drive, possibly the aforementioned drive roller, contacting rear layer.
  • the rear layer preferably has a toothing for positive connection with the drive or the drive roller, wherein the drive or the drive roller should have a corresponding counter-toothing in this case.
  • the band is in the screwing direction, preferably automatically, tracked or tracked.
  • the screw By screwing the screw cap on the opening thread of the container, the screw would - at least to a small extent - move relative to the tape in the screwing direction. This could lead to wear on the screw cap and / or on the belt.
  • the relative displacement of the screw cap in the screwing direction relative to the band reduces the contact surface between the band and the screw cap.
  • the tape can be introduced transversely to the screwing to the screw cap and brought into contact with this.
  • the tool in the form of the tape is thus introduced analogously to the screw in order to effect the contacting, while the screw is preferably designed to be stationary.
  • the container together with the screw cap need not necessarily be brought to the band, which is advantageous in that the screw cap is relatively loosely placed on the opening thread of the container prior to screwing, so that a movement of the container to a release could lead to the attached screw cap.
  • the band can be brought into contact with the screw cap, while achieving a contact force between the band and the screw cap, transversely to the screwing direction. The applied in this embodiment, the contact force thus enables a high frictional force between the driven belt and the screw cap and thus the transmission of a correspondingly high torque.
  • the use of a single band or the creation of a single contact or attack surface when screwing the screw cap would be sufficient to transfer high torque with low slip and low wear on the screw can.
  • at least two bands or at least two band portions of a band are provided, which can be brought into contact with peripheral portions of the circumference of the screw cap in order to effect the screwing of the screw cap.
  • the peripheral portions, with which the two bands or two band portions of the same band are brought into contact arranged opposite to each other, more preferably offset by 180 ° to each other, in particular as a result of a one-sided loading of the screw cap and the container is avoided.
  • the respectively applied, preferably resulting, contact forces at the respective peripheral portions are opposite to each other.
  • a force compensation is achieved thereby.
  • the at least two belts are each driven via a belt drive, whereby not only a safe, but also a simple-build drive is provided.
  • the belt drives are each assigned to a common main drive roller.
  • main drive roller is trackable or tracked when the tapes are brought to the screw closure while maintaining the belt tension. This tracking of the main drive roller is preferably effected by a mechanical coupling. Also, the trackability is preferably ensured even in the opposite movement of the bands when they are led away from the screw cap.
  • the feeding movements of the bands or band sections are coupled to the screw cap, preferably mechanically, more preferably by means of a toothed rack and pinion pairing. In this way, a particularly simple device can be achieved.
  • an anti-rotation device for a rotationally secure reception of an attachment arranged on top of the screw cap.
  • the anti-twist device is preferably designed such that an attachment, which protrudes in the radial direction over the screw cap and optionally is a spray head or a spray gun, can be held against rotation in the anti-twist device.
  • the anti-twist device is preferably arranged relative to the belt in such a way that the belt can be brought into contact with the screw closure below the anti-twist device.
  • the receptacle is preferably in this embodiment as an attachment guide formed, through which the attachment can be passed transversely to the screwing.
  • the attachment guide has two end openings through which the attachment can be inserted transversely to the screwing direction into the attachment guide or can be guided out of the attachment guide.
  • at least one of the end-side openings of the attachment guide is widened in the opening direction. This is particularly advantageous if the end opening widened in the opening direction is that end opening into which the attachment can be inserted or introduced transversely to the screwing direction into the attachment guide. In this way, the insertion of the attachment when feeding the container together with screw cap and attachment is simplified, also the insertion can be carried out under forced orientation of the attachment in a predetermined rotational position about a screw axis extending axis.
  • a transport device for the continuous or stepwise feeding or discharging of containers with associated screw closures.
  • the transport device preferably has a conveyor belt with lateral support for the containers.
  • the device according to the invention is also a holding device for temporary, preferably non-rotating, holding the screw to be screwed with the screw cap Container provided.
  • the holding device is preferably formed by two mutually opposite, circumferential bands between which the container is clamped, wherein by driving the mutually opposite bands particularly preferably a further transport of the container is possible.
  • the method according to the invention is a method for attaching a screw cap to a container with an opening thread and has the following method steps.
  • a band which is preferably endless, closed or circumferential, is brought into contact with the circumference of a screw cap placed on an opening thread of the container.
  • the belt is driven, so that the friction between the belt and the screw cap causes a screwing of the screw cap on the opening thread.
  • the order of the two mentioned process steps is basically irrelevant, so the belt can already be driven, for example, before it is brought into contact with the screw, but it is also possible to first bring the non-driven belt in contact with the screw and only then drive the belt, which is considered to be particularly advantageous herein.
  • the contacting of the band with the circumference of the screw closure takes place at least Partial wrap around the circumference of the screw cap.
  • the wrap angle is in this case preferably at least 30 °, at least 40 ° or at least 50 °.
  • the tape is tracked during screwing, preferably automatically, in the screwing direction.
  • the band is brought to the, preferably stationary, screw cap and brought into contact with a contact force, which is preferably aligned transversely to the screwing.
  • At least two bands or two band sections of a band are used, which are preferably brought into contact with peripheral portions of the circumference of the screw closure which are opposite one another and which are particularly preferably offset by 180 °.
  • the two bands or the two band sections apply opposing, preferably respectively resulting, contact forces.
  • the use according to the invention relates to the use of the device according to the invention or the method according to the invention for attaching a screw cap with attachment, which protrudes preferably in the radial direction over the screw cap and particularly preferably is a spray head or a spray gun, on a container.
  • the container is preferably a liquid container, which is particularly preferred already a liquid, possibly a hazardous liquid is filled.
  • the Fig. 1 to 7 show various views of an embodiment of the device 2 according to the invention for attaching a screw cap 4 to a container 6.
  • the device 2 is intended in particular for attaching a screw cap 4 with an attachment 8 on the container 6 serve.
  • the attachment 8, which projects in the radial direction, that is transversely to the screwing direction, over the screw cap 4 and is preferably a spray head or a spray gun, is arranged on top of the screw cap 4.
  • the screw cap 4 has a downwardly facing receptacle in which an internal thread is provided, which can be screwed onto an opening thread 10 of the container 6.
  • the container 6 is preferably a liquid container, which is particularly preferably filled with a liquid, optionally a hazardous liquid.
  • the opposite longitudinal directions 12, 14, the opposite transverse directions 16, 18 and the opposite height directions 20, 22 of the device 2 are indicated by corresponding arrows.
  • the longitudinal direction 12 corresponds in the example shown at the same time the feed direction of the container 6, while the height direction 22 simultaneously forms the screwing 24, in which the screw 4 moves when screwed onto the opening thread 10 of the container 6.
  • the device 2 has a height guide 26 which in Fig. 1 is indicated only schematically and along which a carriage 28 in the height direction 20, 22 is arranged adjustable.
  • a carriage 28 in the height direction 20, 22 is arranged adjustable.
  • the further described below components of the device 2 are arranged so that the device 2 height adjustable and thus to the respective height of the container 6 used in conjunction with the screw 4 is customizable.
  • two substantially identical units 30, 32 are arranged, which are provided in the transverse direction 16, 18 slidably on the carriage 28, wherein the two units 30, 32 in the transverse direction 16, 18 are arranged opposite to each other.
  • corresponding guide rails 34 are arranged on the upper side of the carriage 28, in particular in Fig. 2 can be seen.
  • the above-mentioned units 30, 32 essentially have a tube 42, 44 which extends from top to bottom in the height direction 22 through the slide 28, an upper roller 46, 48, a shaft 50 connected in a rotationally fixed manner to the upper roller 46, 48 extends in the height direction 22 from the upper roller 46, 48 through the tube 42, 44 downwardly, the shaft 50 at least in the 4 and 5 is indicated, and a coherent module 52, 54 which is interchangeably connectable or connected below the carriage 28 with the height direction 22 downwardly facing end of the tube 42, 44.
  • the modules 52, 54 are interchangeably connectable or connected to the device 2, wherein the structure of the modules 52, 54 below with reference to the 4 to 6 will be discussed in more detail.
  • the module 52 has a support part 56.
  • a drive roller 58 is rotatably supported by means of a rotary or roller bearing 60 about an axis of rotation 20, 22 extending in the height direction.
  • two guides 62, 64 are provided, which are spaced apart in the longitudinal direction 12, 14 and arranged opposite one another on the support member 56.
  • the guides 62, 64 are formed in the illustrated embodiment by two rollers, more precisely by two free-running rollers, which are each mounted rotatably about a running in the height direction 20, 22 axis of rotation on the support member 56.
  • the module 52 has an endless, closed and circulating belt 66.
  • the belt 66 is guided on the one hand via the drive roller 58 and on the other hand via the guides 62, 64.
  • longitudinal guides 68, 70 are formed, within which the band 66 in both width directions of the belt 66, which correspond to the height directions 20, 22 in the illustrated embodiment, is supported or supported, while the belt 66 in the longitudinal direction through the longitudinal guides 68, 70 can be performed. While the one longitudinal guide 68 leads from the drive roller 58 to the guide 64, the other longitudinal guide 70 leads away from the other guide 62 to the drive roller 58.
  • the longitudinal guide 68 between the drive roller 58 and the guide 64, and the longitudinal guide 70 is provided between the drive roller 58 and the guide 62.
  • the belt 66 is also supported or supportable on the drive roller 58 in both widthwise directions of the belt 66, which has proven to be advantageous during operation, while such support on the guides 62, 64 itself is not provided.
  • the guided around the drive roller 58 and the guides 62, 64 belt 66 is formed at least two layers, as in particular from Fig. 7 shows that an enlargement of the section C from Fig. 6 shows.
  • the band 66 has a front position 72 which can be brought into contact or brought into contact with the screw cap 4, in which case it is also possible to speak of the outer position which faces away from the guides 62, 64 and the drive roller 58.
  • the multi-layer tape 66 has a drive roller 58 contacting rear layer 74. In the case of the rear layer 74, it is thus also possible to speak of the layer facing the guides 62, 64 and the drive roller 58.
  • the front layer 72 is made of a material having with the material of the screw cap 4 a coefficient of friction which is greater than the coefficient of friction of a material pairing of the material of the backsheet 74 and the material of the same screw cap 4. Alternatively or additionally, the front layer 72 has a low strength than the rear layer 74.
  • the rear layer 74 has a toothing 76 for the positive connection of the belt 66 at least with the drive roller 58, wherein the drive roller 58 should have a corresponding counter-toothing in this case, on the representation in Fig. 6 has been omitted for simplicity.
  • Fig. 4 shows the module 52 prior to connection to the tube 42 of the device 2.
  • Both the tube 42 as Also, the support member 56 of the module 52 are formed such that they can be flanged to each other in the height direction 20, 22 to the in Fig. 5 To achieve shown connection.
  • the flanging is carried out with automatic generation of a rotary driving connection between the drive roller 58 of the module 52 and a driven or driven part 78, which is a non-rotatably connected to the shaft 50 part 78 in the illustrated embodiment.
  • the rotary driving connection thus produced is preferably a positive connection and a plug connection in which the simple insertion or insertion of the part 78 into or onto the drive roller 58 in the height direction 20, 22 causes the generation of said, preferably form-fitting, rotational driving connection.
  • a main drive roller 80 is provided, which can be driven by a motor 82, preferably a servo motor.
  • the main drive roller 80 is divided in the illustrated embodiment into two rollers 84, 86, the rotational movement is coupled, however, by these preferably being arranged on a common drive shaft.
  • the roller 84 of the main drive roller 80 is connected via a belt 88 to the upper roller 46, while the roller 86 is connected via a belt 90 with the upper roller 48 in rotary driving connection.
  • the belt 66 of the module 52 and 54 are driven in its longitudinal direction, wherein the two bands 66, 66 of the modules 52, 54 are driven in the same direction.
  • the main drive roller 80 is maintained by maintaining a belt tension by means of an in Fig. 1 indicated mechanical coupling 92 tracked or tracked.
  • the main drive roller 80 along a guide rail 94 in the longitudinal direction 12, 14 slidably disposed, as in Fig. 2 is shown.
  • the main drive roller 80 shifts in the longitudinal direction 14, while the main drive roller 80 shifts in the longitudinal direction 12 when the two units 30th , 32 together with the modules 52, 54 in the transverse direction 16, 18 are moved away from each other, in both cases, the belt tension of the belt 88 and 90 is maintained.
  • the belt tension of the two belts 88, 90 is adjustable by means of the adjustable mechanical coupling 92.
  • the anti-rotation device 96 is arranged on the height direction 22 downwardly facing side of the carriage 28 and above the belts 66, 66 of the modules 52, 54.
  • the anti-rotation device 96 serves to prevent the attachment 8 of the screw cap 4 from rotating when it reaches the working area of the device 2.
  • the anti-rotation device 96 is in this embodiment as a top guide formed, can be passed through the attachment 8 transverse to the screwing 24 in the longitudinal directions 12, 14 of the device 2.
  • the tower guide, the in Fig. 1 designated by the reference numeral 98 is limited in the transverse directions 16, 18 each by a strut 100, wherein the attachment guide 98 has two end openings through which the attachment 8 transversely to the screw 24 in the longitudinal directions 12, 14 in the attachment guide 98 insertable or can be led out of the attachment guide 98.
  • the attachment guide 98 has an end-side insertion opening pointing in the longitudinal direction 14 and an end-side removal opening pointing in the longitudinal direction 12. At least in the longitudinal direction 14 facing end-side insertion opening widens in the longitudinal direction 14, as the Fig. 1 can be removed.
  • two bands 66, 66 are used, namely the band 66 of the module 52 and the band 66 of the module 54. It should be noted at this point In principle, even more bands 66 and corresponding modules 52 or 54 can be used. Alternatively, it is also conceivable that only a single band is used, are brought by the two band sections with the screw 4 in contact.
  • the two bands 66, 66 each have a contact portion 102 which extends in the longitudinal direction 12, 14 between the two guides 62, 64, the periphery of the screw cap 4 faces and is to be brought into contact with this.
  • said contact portion 102 extends directly between the two guides 62, 64, ie, the contact portion 102 is not further between the support points on the guides 62, 64 Supported components of the module, in particular not on the drive roller 58 which engages elsewhere on the belt 66.
  • an at least partial support of the contact portion 102 in the width direction of the belt 66 on the support member 56 which should preferably also be omitted so as not to unnecessarily limit the scope for the nearby screw cap 4 or an unwanted collision with this to prevent.
  • the container to be screwed 6 are continuously or stepwise supplied by means of a transport device not shown or / and discharged, wherein before reaching the working area of the device 2, the screw 4 is placed with the attached thereto attachment 8 on the opening thread 10 of the container 6.
  • the attachment 8 passes through the end insertion opening 98 of the attachment guide 98 pointing in the longitudinal direction 14 into the attachment guide 98, so that the anti-rotation device 96 effects a rotation-proof alignment of the attachment 8 by the struts 100 Fig. 1 is shown.
  • the transport device not shown, it is preferably a conveyor belt on which the container 6 are arranged, wherein preferably a lateral boundary is provided on the conveyor belt, which causes a secure guidance of the container 6.
  • a holding device which is also not shown in the figures.
  • a holding device could for example consist in that the container 6 is clamped in the transverse direction 16, 18 between two holding elements.
  • These holding elements could, for example, be lateral conveyor belts between which the container 6 is clamped and which, moreover, could support or effect further transport of the container 6 in the longitudinal direction 12.
  • the holding device is designed such that the container 6 and thus also the opening thread 10 is held against rotation on the container 6.
  • the two bands 66, 66 are transverse to the screw 24, in this case in the transverse directions 16 and 18 brought to the screw 4.
  • the two units 30, 32 are moved towards one another via their racks 38, 38, wherein the belt tension in the belts 88, 90 is maintained by moving the main drive roller 80 in the longitudinal direction 14, which is achieved by the mechanical coupling 92 becomes.
  • the two bands 66, 66 are thus moved toward each other so far that the contact portions 102, 102 of the two bands 66, 66 are brought into contact with the circumference of the screw cap 4, as the Fig. 3 can be removed.
  • the two units 30, 32 are acted upon by a force such that the belt 66 of the module 52 exerts a contact force 104 transversely to the screw 24 and in the transverse direction 16 on the screw 4, while the belt 66 of the module 54, a contact force 106 across to the screw 24 and in the transverse direction 18 on the screw 4 exerts, as shown in the Fig. 3 is indicated.
  • the two contact pressures 104 and 106 are preferably opposite to each other and can particularly preferably compensate each other in this way, so that the introduced forces do not have to be compensated by the holding device or the like.
  • pressing forces 104 and 106 are preferably the respective resulting contact forces.
  • the contact portions 102, 102 of the two bands 66, 66 act on peripheral portions of the circumference of the screw cap 4 which are opposite one another, preferably offset by 180 ° from one another.
  • the applied pressing forces 104 and 106 are so great that the contact portions 102, 102 of the bands 66, 66 are bent, arched and adapted analogously to the outer contour of the circumference of the screw cap 4. Consequently, the contact portion 102 of each band 66, 66 is brought into contact with the circumference of the screw cap 4 in such a way that the contact portion 102 wraps around the screw cap 4 in the region of a wrap angle ⁇ , as in FIG Fig. 3 can be removed.
  • the distance a between the two guides 62, 64 and thus the length of the contact portion 102 is matched to the diameter of the screw cap 4 such that this wrap angle ⁇ is at least 30 °, at least 40 ° or at least 50 °.
  • the bands 66, 66 are driven by screwing the screw cap 4 on the opening thread 10.
  • the motor 82 drives the main drive roller 80, the over the belts 88 and 90, the upper rollers 46 and 48, the inner shafts 50, 50, the parts 78, 78 and the drive rollers 58, 58 drive the belts 66, 66 in their longitudinal or extension direction via the guides 62, 64 and caused by the longitudinal guides 68, 70.
  • the screw 4 By screwing the screw 4 on the opening thread 10, the screw 4 lowers in the screwing 24 and thus also in the height direction 22 downwards, which could lead to an undesirable relative movement between the screw 4 and the engaging bands 66, 66.
  • the two belts 66, 66 are automatically tracked downwards in the vertical direction 22 and in the screwing direction 24, respectively. This can be done for example by tracking the carriage 28 in the height direction 22 down along the height guide 26. At the same time, this would have the advantage that the anti-twist device 96 is also tracked downwards in the screwing direction 24 or in the height direction 22, so that the attachment 8 is furthermore held against rotation.
  • the two units 30, 32 could also be tracked downwards relative to the carriage 28 in the height direction 22, in which case the anti-rotation device 96 is preferably dimensioned such that the attachment 8 is still accommodated in the anti-rotation device 96, when the screw cap 4 and the attachment 8 has experienced its maximum reduction in the screwing direction 24 down.
  • the maximum possible wrap angle ⁇ for the same or constant outer diameter of a screw cap 4 is adjustable or changeable.
  • the modules 52 and 54 arranged exchangeably on the device 2 could each have guides 62, 64 whose distance a from each other can not be changed, the maximum wrap angle ⁇ being adjustable or variable in this case by the two modules 52, 54 each be replaced by another module having a greater or lesser distance a between the guides and thus a longer or shorter contact portion.
  • the two guides 62, 64 may be arranged on the existing modules 52, 54 such that the distance a from one another is adjustable or changeable.
  • the trained as rollers guides 62, 64 are formed as pulleys for the belt 66.
  • the deflection angle ⁇ achieved by the deflection rollers relative to the contact section 102 is preferably at least 45 ° or, as in FIG Fig. 6 indicated - particularly preferably at least 90 °.
  • the drive roller 58 need not necessarily be formed separately from the two guides 62, 64.
  • the drive roller 58 can equally form one of the two guides 62, 64 to provide a relative movement To achieve a simple structure, especially because of the dual function of such a drive roller 58 could be dispensed with an additional guide.
  • means are provided for determining the predetermined end torque of the screw cap 4, which stops screwing as soon as the determined torque on the screw cap 4 reaches or exceeds the desired or predetermined end torque with which the screw cap 4 should be tightened.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
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EP11009572A 2011-05-27 2011-12-03 Dispositif et procédé destinés à l'application d'une fermeture à vis Withdrawn EP2527289A1 (fr)

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DE102011103356 2011-05-27

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113336157A (zh) * 2021-06-23 2021-09-03 上海宿田自动化设备有限公司 一种适用于不同大小瓶盖的旋盖机
CN115367687A (zh) * 2021-05-21 2022-11-22 克罗内斯股份公司 用于封闭容器的封盖装置和封盖机
CN115367688A (zh) * 2022-09-16 2022-11-22 温州联腾包装机械有限公司 一种灌装机用的拧盖机构

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04154590A (ja) * 1990-10-11 1992-05-27 Shizukou Kk トリガーポンプ容器用施蓋，巻締機およびトリガーポンプ容器用施蓋，巻締方法
JPH09132293A (ja) * 1995-11-10 1997-05-20 Medetsuku:Kk キャップ締着装置
US6023910A (en) * 1998-08-28 2000-02-15 Inline Filling Systems, Inc. Capping machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04154590A (ja) * 1990-10-11 1992-05-27 Shizukou Kk トリガーポンプ容器用施蓋，巻締機およびトリガーポンプ容器用施蓋，巻締方法
JPH09132293A (ja) * 1995-11-10 1997-05-20 Medetsuku:Kk キャップ締着装置
US6023910A (en) * 1998-08-28 2000-02-15 Inline Filling Systems, Inc. Capping machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115367687A (zh) * 2021-05-21 2022-11-22 克罗内斯股份公司 用于封闭容器的封盖装置和封盖机
CN113336157A (zh) * 2021-06-23 2021-09-03 上海宿田自动化设备有限公司 一种适用于不同大小瓶盖的旋盖机
CN115367688A (zh) * 2022-09-16 2022-11-22 温州联腾包装机械有限公司 一种灌装机用的拧盖机构

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