EP0308528B1 - Dispositif pour le vissage et le dévissage de fermetures à vis ou similaires dans ou hors des ajutages de remplissage de fûts, récipients ou similaires - Google Patents

Dispositif pour le vissage et le dévissage de fermetures à vis ou similaires dans ou hors des ajutages de remplissage de fûts, récipients ou similaires Download PDF

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Publication number
EP0308528B1
EP0308528B1 EP87113912A EP87113912A EP0308528B1 EP 0308528 B1 EP0308528 B1 EP 0308528B1 EP 87113912 A EP87113912 A EP 87113912A EP 87113912 A EP87113912 A EP 87113912A EP 0308528 B1 EP0308528 B1 EP 0308528B1
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EP
European Patent Office
Prior art keywords
guide cylinder
centering
screwing
ring
annular
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.)
Expired - Lifetime
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EP87113912A
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German (de)
English (en)
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EP0308528A1 (fr
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Gerhard Arnemann
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Individual
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Individual
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Priority to DE8787113912T priority Critical patent/DE3779428D1/de
Priority to EP87113912A priority patent/EP0308528B1/fr
Priority to AT87113912T priority patent/ATE76613T1/de
Priority to US07/137,404 priority patent/US4979350A/en
Publication of EP0308528A1 publication Critical patent/EP0308528A1/fr
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Publication of EP0308528B1 publication Critical patent/EP0308528B1/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B7/00—Closing containers or receptacles after filling
    • B65B7/16—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons
    • B65B7/28—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by applying separate preformed closures, e.g. lids, covers
    • B65B7/2828—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by applying separate preformed closures, e.g. lids, covers inserting and rotating screw stoppers

Definitions

  • the invention relates to a device for barrels or containers for screwing and unscrewing screw caps made of plastics or metallic materials into the internal thread or from the internal thread of a filler neck with a filling opening attached to the cover plate in the area of an opening in the upper cover plate of the drum or container the circumferential edge delimiting the upper fill opening is provided with an outer bead which has a circumferential attachment edge lying in the plane of the upper fill opening of the filler neck, which is followed by an approximately circular section which merges into the outer wall of the filler neck, the device for barrels and container has a centering and screwing head, consisting of an outer centering element which can be placed on the filler neck and an axially displaceable element which is arranged in the interior thereof and can be rotated by means of a drive device and in the screw cap engaging wrench, the centering and screwing head with its drive device being arranged in a movable element, which is arranged in a laterally and / or vertically movable support frame, through which a guide
  • Such a device for barrels and containers is known from WO-A-87/01091.
  • this screwing device for screwing and / or unscrewing closure caps on the bung holes of drums with a centering ring and a screwing tool mounted coaxially in the centering ring and displaceable in the axial direction relative to the centering ring, which is connected to a rotary drive
  • the centering ring is movably mounted on a support frame, which in turn is arranged vertically raised and lowered above the position of the barrel
  • the centering ring and the screwing tool and its rotary drive are combined to form a pivotable assembly, which means an articulated ball is pivotally mounted on all sides in the support frame, which in turn can be displaced on all sides on a cross slide in a horizontal plane
  • the screwing tool being connected for its axial displacement to a displacement device arranged in the structural unit, which consists of one or more pressure medium-operated actuators arranged in the structural unit
  • Such a screwing device is intended to perform large adjustment movements both with regard to the center of the bung hole and with regard to the spatial position of the axis of the screw thread, so that angularly movable joints between the screw head and the rotary drive are no longer required.
  • the axial displacement path covered by the screwing tool during the screwing process should be definable to a predetermined extent - the combination of the centering ring, the screwing tool, the rotary drive and the displacement device for the screwing tool into an overall pivotable unit and the mounting of this unit pivotable on all sides in a joint ball on the floating frame in the horizontal plane should make it possible to align the entire assembly with respect to the bung hole without having to overcome elastic restoring forces and without the displacement and pivoting paths being narrowly limited.
  • the assembly In order to bring the assembly into the vertical starting position after the completion of each screwing operation, the assembly is assigned an alignment cylinder which is supported on the support frame and, when pressurized, aligns the longitudinal axis of the assembly perpendicular to the plane of the support frame and releases the assembly for pivoting movements when pressure is released.
  • the working speed of such a device for barrels or containers for screwing or unscrewing screw caps is not increased by the use of separate alignment cylinders, since these only bring the assembly back into the vertical starting position after a certain time delay after the completion of each screwing process; automatic resetting of the assembly after completion of each screwing operation is not possible with the known device.
  • the use of a joint ball results in high frictional forces, which impair the free movement of the assembly.
  • the screwing device for screwing closure caps onto bung holes of barrels does not see any one that can be displaced against spring pressure and rotated by means of a drive device and engages in the screw cap Wrench.
  • a separate device is provided to also bring the support frame into the predetermined starting position after each work cycle.
  • the top of the support frame is provided with a resetting device for moving the frame into the predetermined starting position.
  • Both the structural unit and the supporting frame must each be returned to the starting position by means of separate drive devices after the end of each screwing operation. The technical design effort for this is very considerable; such a device cannot work economically because the energy required to operate such a device is very large.
  • DE-A-22 10 753 is a device for closing containers with an eccentrically arranged pouring spout known by a drive machine that can be moved between a rest position and a working position in which a centering device carried by this drive machine engages in the periphery of the lid wall of the container, which has an eccentric pouring spout, such that a rotatable power output shaft of the drive machine is brought into and held in a position coaxial to the container by a scanning device which is held eccentrically by the shaft and is displaceable as part of the shaft by a circumference whose center lies on the container axis and whose radius is equal to the distance between the axis of the spout and the container axis, up to an engagement position with the spout, and by a sealing head, which is held eccentrically by the shaft in a coaxial position to the scanning device and along its own axis between ischen a rest position and a working position in which an engagement with the spout takes place, is displaceable,
  • this device With this device, the closing of containers with eccentric spouts is possible, the scanning of the position of the spout being carried out with a device which facilitates and accelerates this scanning, while at the same time it is intended to achieve with another device that the entire working cycle of the device is complete expires automatically. In order to perform all of these functions, this known device has a large number of complicated components.
  • DE-A-25 40 864 is a device for attaching screw closures to the bung holes of drums with a boom movable vertically by a lifting device and pivotable about a vertical axis and with a centering device and a closing device, which can be brought in succession by pivoting the boom over the bung hole of a barrel.
  • This device is designed in such a way that the centering device is detachably connected to the boom by means of a receiving flange and a holding tube with articulated joints for search fingers is arranged on the receiving flange, the shafts of which are guided through openings in the jacket of the holding tube and by means of an elastic ring Rubber or the like which can be held together and whose surface sections facing away from the holding tube are formed so as to be spherical to the central axis of the holding tube with guide pins arranged coaxially to the central axis of the holding tube, a centering mandrel vertically to the holding tube in the center through an opening in the receiving flange by means of a pneumatically or hydraulically acting lifting cylinder is movable to abut against the shafts of the search fingers, and in addition in the closing device a suction head for sucking in the barrel lid and a screw head for screwing the barrel lid on the threads of the barrel bung hole arranged on the barrel bung are arranged on one end section of
  • a plug screwing device with a centering and screwing head which consists of an outer centering ring and a screw head displaceable therein against spring pressure, which is connected to a drive device via a drive shaft with angularly movable joints.
  • the centering ring is designed and profiled in such a way that when a plug is screwed into the barrel bung hole, it is supported on the upper circumferential edge of the barrel bunghole plug and must therefore be adapted to the dimensions and the diameter of the barrel bunghole connector.
  • This centering ring cannot be used with barrel plug holes with other dimensions.
  • the drive shaft for the screw head is provided with angularly movable joints, which consist of disc-shaped bodies arranged at the ends of the drive shaft and arranged in chamber-like bearing housings as part-ball coupling elements with an arc-shaped circumferential outer wall surface, the part-ball coupling element adjacent to the screw head being arranged via a ball bearing supported on a spring-loaded cylindrical molded body in order to also be able to perform sliding movements.
  • angularly movable joints consist of disc-shaped bodies arranged at the ends of the drive shaft and arranged in chamber-like bearing housings as part-ball coupling elements with an arc-shaped circumferential outer wall surface, the part-ball coupling element adjacent to the screw head being arranged via a ball bearing supported on a spring-loaded cylindrical molded body in order to also be able to perform sliding movements.
  • a drive shaft which has angularly movable joints only on both sides and is mounted by means of these joints, does not have a high torsional stiffness, so that twisting of the drive shaft can occur when a plug is screwed into a heavily soiled or rusted bunghole of a barrel.
  • EP-A-065180 discloses a plug-in screwing device for barrels with a centering and screwing head, consisting of an outer centering ring and a screwing head arranged in the interior thereof and displaceable against spring pressure, which is connected to a drive device via a drive shaft having angularly movable joints is.
  • This screw-in plug device consists of a support frame with an upper support plate and a lower support plate, on which a centering plate is arranged, which is provided with a cross-shaped opening and the inner wall surface delimiting the opening tapers conically in the direction of the centering and screwing head and at the bottom into a vertical one Wall section merges, the inner diameter of the recess delimited by the wall section being larger than the diameter of the drive shaft, a correspondingly profiled molded body having an outer wall surface tapering in the direction of the centering and screwing head being inserted into the opening, the molded body at the bottom end thereof itself on the drum cover plate during the plug centering and screwing-in process supporting centering ring and is connected to a section lying on the centering plate with a guide plate which is held on at least three guide bolts fastened to the lower supporting plate of the supporting frame in a longitudinally displaceable and pivotable manner against the pressure of springs, and wherein the drive shaft is connected to the drive device from a single one There is a shaft
  • the invention solves the problem of creating a screw cap screwing and unscrewing device for barrels which not only automatically centers the screw head on the filling opening of the refill neck and compensates for an inclined position of the screw cap, but also aligns itself automatically during the centering process on the longitudinal axis of the barrel filler neck , even if the filler neck is bent or inclined to the level of the drum cover plate and in which the centering and screwing head automatically returns from an inclined position to the vertical starting position and which also enables centering with high accuracy, so that screw caps with a fine threads can be screwed into the thread of the filler neck with great accuracy and effortlessly.
  • the centering and screwing head is held by means of a cylindrical helical compression spring, which surrounds the centering and screwing head, in a height-adjustable support frame such that the centering and screwing head can be pivoted about its longitudinal axis in such a way that the centering and screwing head can align with its longitudinal axis on each longitudinal axis of the barrel filler neck, regardless of the angular position in which the longitudinal axis of the barrel filler neck is relative to the longitudinal axis of the barrel or Level of the drum cover plate is located.
  • the centering and screwing head Due to the mounting of the centering and screwing head by means of a resilient-elastic element, in particular a cylindrical helical compression spring, the centering and screwing head is in any angular position deviating from the longitudinal axis of the filler neck or in each with the longitudinal axis deviating from the vertical at one to the lid level of the Barrel, container or the like.
  • bent filler pipe resulting position matching position can be transferred or automatically reset from any angular position into the vertical position, so that the centering and screw head can also be automatically returned from an inclined position into its vertical starting position by means of this resilient element.
  • the exact centering on the barrel filler neck is supported by the special inner wall design of the centering ring, which is the outer centering element of the centering and screwing head.
  • the inner wall surface of the centering ring is aligned with the rim design of the barrel filler neck in the area of its filling opening, so that the interaction of this rim design with the inner wall surface design of the centering element an extremely precise centering not only for the screwing process, but also for the unscrewing process.
  • the device designated by 10 in FIG. 1 is for screwing and unscrewing threaded screw caps 115 into the thread of filler neck 105 of drums, containers or the like. 100, which are provided with bunghole filler or filler neck 105, are provided.
  • the device 10 can also be used to screw closure elements provided in a different manner, but with a thread, into barrel filler necks or to unscrew or unscrew them from barrel filler necks.
  • Fig. 1 at 100 is a barrel, container or the like. hinted at the upper cover plate 101 is provided with an opening or the bung 102. In the area of this opening 102, a filler neck 105 is arranged on the upper drum cover plate 101, the fill opening of which is designated by 106. This filler neck 105 is provided with an internal thread 107.
  • the circumferential edge 110 delimiting the filling opening 106 has an outer annular edge bead 111, which is provided with a horizontal attachment edge 112 which lies in the plane of the filling opening 106 of the filling nozzle 105 and which is flat. This attachment edge 112 merges with the formation of an arcuate section 114 into the filler neck outer wall 113 (FIG. 3).
  • the closing of the filling opening 106 of the barrel filler neck 105 takes place in the embodiment shown in FIGS. 1 to 3, for example by means of a screw cap 115, which is made of plastic or another suitable metallic material and which is provided with a retracted bottom, the circumferential wall portion of the retracted Bottom is provided with an external thread 116 (Fig. 2).
  • the screw cap design is such that the screw cap 115 can be screwed with its external thread 116 into the internal thread 107 of the filler neck 105.
  • the screw cap 115 has in the interior 117 formed by the retracted bottom 117 on the bottom of the screw cap 115 denoted by 118, engagement or driving elements indicated at 119, eg in the form of wing-like sections.
  • engagement or driving elements indicated at 119, eg in the form of wing-like sections.
  • differently designed screw caps or screw plugs can be screwed in and unscrewed with the device 10 if these closure elements are used are provided with an external thread and with engagement and entrainment elements in which the corresponding devices of the device 10 engage in order to be able to turn the closure element about its central axis for screwing in and unscrewing.
  • the screw cap screwing and unscrewing device 10 consists of a centering and screwing head 120, an outer centering element 130, a wrench 140 which can be brought into operative connection with the screw cap 115 and a drive device 150 for the wrench.
  • a support frame 30 is connected to a vertical support arm 20 which can be moved vertically in the direction of arrow X by means of a drive device (not shown in the drawing) in such a way that it projects laterally from the support arm 20.
  • a drive device not shown in the drawing
  • the support arm 20 can also be moved in the horizontal direction.
  • This support frame 30 is designed as a support bracket 31.
  • This support bracket 31 consists of an upper horizontal ring body 32 and a lower horizontal ring body 33 arranged at a distance from the ring body 32 by means of spacer arms 34 and running parallel to the ring body 32, the two central openings of the two ring bodies 32, 33 with 32a, 33a are designated.
  • These two openings 32a, 33a of the two ring bodies 32, 33 of the support bracket 31 correspond to one another.
  • the diameter of the two openings 32a, 33a of the ring bodies 32, 33 can be the same; however, there is also the possibility of dimensioning the diameter of the opening 32a of the upper ring body 33 somewhat larger than the diameter 33a of the lower ring body 33.
  • This support bracket 31 accommodates the centering and screwing head 120, which - as will be described in more detail below - is pivotably or movably mounted in the support bracket 31 about its longitudinal axis, this centering and screwing head comprising a guide cylinder 40, the outer centering element 130 and the wrench 140, so that when the support arm 20 is moved vertically with the support bracket 31, the centering and screwing head 120 also takes part in this process.
  • the spacer arms 34 which keep the two ring bodies 32, 33 of the support bracket 31 at a distance, are fastened to the outer peripheral region of the two ring bodies 32, 33.
  • the outer diameter of the two ring bodies 32, 33 is dimensioned the same.
  • the guide cylinder 40 is arranged, which is guided on both sides out of the plane formed by the two ring bodies 32, 33 with a section (FIGS. 1 and 2).
  • the upper end of the guide cylinder is designated 40a, its lower end 40b and its interior 40c.
  • the guide cylinder 40 Adjacent to its lower end 40b, the guide cylinder 40 has on its outer wall surface a circumferential outer ring 41 which is designed as a support ring for a resilient element.
  • the outer ring 41 is an integral part of the guide cylinder 40, which is designed as a cylindrical tube.
  • the outer circumference of the outer ring 41 of the guide cylinder 40 is dimensioned such that the outer ring 41 is supported on the inner wall surface of the ring body 33 of the support bracket 31 facing the ring body 32.
  • this configuration can be such that the outer circumferential bearing surface of the outer ring 41 is provided with an annular bead with a part-circular section, while the bearing surface for the outer ring 41 on the ring body 33 is provided with a correspondingly profiled annular recess, so that the outer ring 41 can roll off with its bead-like outer profile in the ring groove or groove-shaped recess in the ring body.
  • the ring body 33 is designed to be resilient, so that when the ring body 33 is loaded on one side, this loaded section can dodge, for example in the direction of arrow Y, ie the ring body can bend in this area.
  • the spacer arms 34 are then also designed to be resilient, so that a change in the position of the annular body 33 in its section loaded by the guide cylinder 40 together with the spacer arms 34 relative to the rigid annular body 32 is possible.
  • the storage and mounting of the guide cylinder 40 in the support frame 30 takes place by means of the resilient-elastic element, which in the embodiment shown in FIGS. 1 and 2 is designed as a cylindrical helical compression spring 42 which surrounds the guide cylinder 40 so that it is in the interior of the helical compression spring 42 is arranged.
  • the upper end of the helical compression spring 42 is designated 42a and the lower end of the helical compression spring 42b.
  • This helical compression spring 42 is clamped between the upper ring body 32 of the support bracket 31 and the outer ring 41 of the guide cylinder 40, in such a way that the helical compression spring 42 with its upper end 40a on the inner wall surface of the upper ring body 32 and with its lower end 42b on the outer ring 41 of the guide cylinder 40.
  • the annular body 32 and the outer ring 41 are correspondingly profiled so that lateral deflection of the helical compression spring 42 with its upper end 42a or with its lower end 42b is not possible is.
  • the guide cylinder 40 and all the elements connected to it described in greater detail below can be pivoted about the longitudinal axis of the guide cylinder, i.e. the lower end of the guide cylinder 40 in the direction of the arrow X2, for example at 45 in Fig. 2 indicated pivot point pivotable or slidable.
  • the guide cylinder 40 carries at its upper end 40a an end plate 46 which is detachably or fixedly connected to the circumferential wall of the guide cylinder 40.
  • the drive device 150 for the wrench 140 is arranged on this end plate 46.
  • the drive device is designed in a manner known per se as an air motor 50, which is provided with two connections 51, 52 for reversing the direction of rotation of the drive shaft 53 connected to the air motor 50.
  • Air-pressure-operated motors are known in a wide variety of embodiments and can be used here as a drive device 150, although drive devices of a different design, such as electromotive drive devices or the like, can also be used.
  • the drive shaft 53 of the air motor 50 is guided through an opening 47 in the end plate 46 of the guide cylinder 40 and through its interior 40c.
  • the bottom free end of the drive shaft 53 carries the wrench 140.
  • the drive shaft is variable in length, i.e. the drive shaft is designed so that it is telescopic, which takes place in the direction of arrow X1.
  • the drive shaft 53 is under the action of a cylindrical helical compression spring 56 which surrounds the drive shaft 53 in the interior region of the guide cylinder 40 and whose upper end 56a is supported on an upper cylindrical support body 54 and with its lower end 56b on a lower support ring 55, whereby the cylindrical support body 54 and the support ring 55 are arranged at a distance from one another.
  • the drive shaft 53 which is formed in two parts in this area, can be moved together by this distance.
  • the operation of the helical compression spring 56 will be discussed in more detail below.
  • the direction of rotation of the drive shaft 53 is indicated by the arrow X3.
  • the outer centering element 130 consists of a cylindrical hollow body 60 which is open on both sides and which is arranged in the interior 40c of the guide cylinder 40 so as to be displaceable in the longitudinal direction.
  • the dimensions of the cylindrical hollow body 60 are such that the outer wall surface of the hollow body 60 is guided on the inner wall surface of the guide cylinder 40.
  • a stroke limitation for the cylindrical hollow body 60 is indicated, which consists of a pin arranged in the wall of the guide cylinder 40, which extends into the feed path of the cylindrical hollow body 60.
  • the outer wall surface of the hollow body 60 is provided with a longitudinal groove 81 into which the Stroke limiting pin engages, at the same time the stroke limiting pin 80 preventing a possible twisting of the cylindrical hollow body 60 about its longitudinal axis.
  • This cylindrical hollow body 60 is under the action of a cylindrical helical compression spring 61, which is arranged above the hollow body 60 in the interior 40c of the guide cylinder 40, namely against the inner wall surface of the guide cylinder 40, this helical compression spring 61 having an upper end 61a on an annular Retraction 48 is supported on the upper end 40a of the guide cylinder 40, while the lower end 61b of the helical compression spring 61 is supported on the upper circumferential edge of the cylindrical hollow body 60 (FIGS. 1 and 2).
  • the cylindrical hollow body 60 carries a centering ring 62 at its lower end.
  • This centering ring 62 can be designed as a special component and the like by means of screw connections. be connected to the hollow body 60.
  • the annular inner wall surface 63 of the centering ring 62 widens conically towards the bottom free end 62a, so that the inner wall surface 63 tapers conically upwards (FIGS. 2 to 3).
  • This inner wall surface 63 of the centering ring 62 is designed and dimensioned such that when the centering ring 62 is placed on the circumferential edge 110 of the barrel filler neck 105, this circumferential filler neck edge 110 is encompassed or overlapped. Furthermore, the inner wall surface 63 of the centering ring 62 is the configuration of the edge 110 of the filler neck 105 of a barrel, container or the like. 100 replicated.
  • the wrench 140 arranged at the free end of the drive shaft 53 is designed such that the wrench 140 can engage in the engagement and driving elements 119 of the screw caps 115, so that when the wrench 140 is turned clockwise or counterclockwise, the screw cap 115 either for the screwing-in process or is taken along for the unscrewing process.
  • the connecting piece for the connection of the vacuum generating device is arranged in the wall of the cylindrical hollow body 60 and is designated 90 in FIG. 2.
  • the drive shaft 53 carries a horizontal measuring disk 70 for the wrench 140, above the wrench 140, the distance from the measuring disk 70 to the lower end of the wrench 140 corresponds approximately to the length of the wrench 140.
  • the outer diameter of the measuring disk 70 which assumes the position shown in FIG. 2, corresponds approximately to the inner diameter of the cylindrical hollow body 60 of the centering element 130, so that when the wrench 140 is lowered or raised, the measuring disk 70 takes part in this movement in the direction of the arrow X6.
  • the measuring disk 70 has on its outer circumference a number of recesses arranged at equal distances from one another, such as notches, grooves or depressions 71 of a different design.
  • a proximity switch 75 is arranged in the path of movement of the measuring disk 70, which is designed in a manner known per se and consists of an amplifier circuit 76, a resonant circuit coil 77 and a shield 78, the line profile of the structure Field is indicated at 79 (Fig. 4).
  • This proximity switch 75 is an electronic switching element that indicates whether metal parts have approached a certain distance or not.
  • Inductive proximity switches consist of an oscillator that supplies the primary side of a transformer with voltage.
  • the metal parts to be detected act as a secondary side. When approaching, an eddy current is induced. This leads to an increase in the primary current, which is registered at a certain threshold. This leads to a change in the output signal.
  • An inductive proximity switch can be used if the measuring disk 70 consists of metallic materials. However, if the measuring disk 70 consists of non-metallic materials, such as plastics, then it is advantageous if the circumference of the individual recesses 71 on the base surfaces of the measuring disk 70 plates made of metallic materials are arranged, but then also the peripheral region of the measuring disk 70 must be provided with a metallic coating. Capacitive proximity switches respond when non-metallic materials approach and are used when the measuring disk 70 is not made of metallic materials.
  • the proximity switch 75 is arranged in the wall of the cylindrical hollow body 60 in the area adjacent to the centering ring 62. There is also the possibility of arranging the proximity switch 75 in a longitudinally displaceable manner in the wall of the cylindrical hollow body 60, which is advantageous if screw caps 115 of different thicknesses are to be screwed in or unscrewed.
  • the measuring disk 70 in connection with the proximity switch 75 is used in such a way that when the drive device 150 is started up, the drive shaft 53 and thus also the wrench 140 are rotated.
  • the measuring disk 70 also lowers slowly and comes into the area of the proximity switch 75, as a result of which Pulses are triggered, which are used for control purposes via corresponding devices, not shown in the drawing.
  • Pulses are triggered, which are used for control purposes via corresponding devices, not shown in the drawing.
  • a statement is made that the screwing depth has almost been reached.
  • the incoming pulses can, for example evaluated in a computer and used to control the screwing depth and screwing torque required. If no more pulses are given, the air motor stops automatically. The screwing torque and thus the final screwing depth is then reached. Monitoring of the screw-in torque is possible in this way.
  • the length of the vertical wall section 67 of the inner wall surface 63 of the centering ring 62, which tapers on the inside towards the end, is exactly the screw-in depth of the screw cap 115 or 5 to 10 mm.
  • a plurality of helical compression springs which are arranged at the same distance from one another and preferably at a distance from the circumference of the guide cylinder 40, can be provided, the upper ends of which support the upper ring body 32 of the support bracket 31 and with their lower ends on the circumferential outer ring 41 on the outer wall of the guide cylinder, so that these helical compression springs are arranged in a ring around the guide cylinder 40.
  • the openings 32a, 33a of the two ring bodies 32, 33 of the support bracket 31 are dimensioned such that the guide cylinder can pivot in the direction of the arrow Y1, Y2, for example at 45, provided that the centering ring 62 is not on the filler neck 105 of a barrel, container or the like. 100 is seated so as not to impair the pivotability in the direction of arrow Y2 on the bottom.
  • the screw cap screwing and unscrewing device 10 operates as follows: In order to unscrew a screw cap 115 from the filler neck 105 of a barrel 100, the centering and screwing head 120 of the device 10 is brought into a position above the filler neck 105 by moving the support arm. The centering and screwing head 120 is then lowered into the position shown in FIGS. 1 and 2, in which the centering ring 62 with its conical inner wall surface 63 engages over the peripheral edge 110 of the barrel filler neck 105, the conically running inner wall surface 63 engaging the arcuate section 114 of the edge bead 111 of the filler neck 105 comes to rest (FIG. 3).
  • This distance H enables the screw cap 115 to be lifted when the screw cap 115 is unscrewed from the thread of the barrel filler neck 105 in such a way that when the centering and screw head 120 is raised further while simultaneously performing a rotary movement of the screw cap 115 by means of the wrench engaging in the screw cap 115 140 when the drive device 150 is started up, the screw cap 115 is unscrewed from the thread of the barrel filler neck 105.
  • the vacuum generating device is put into operation, so that a vacuum is generated in the interior of the cylindrical hollow body 60, which holds the screw cap 115 on the wrench 140 or through the sealing surface 68 and the laterally projecting and circumferential wall surface 115a of the screw cap 115 enables (Fig. 3).
  • This wrench 140 has a head-like design on the bottom to create a contact surface for the screw cap 115.
  • the centering and alignment of the centering and screwing head 120 or the centering ring 62 on the circumferential edge of the barrel filler neck 105 takes place through the interaction of the inner wall surface configuration of the centering ring 62 and the configuration of the circumferential edge 110 of the barrel filling neck 105.
  • the centering and screwing head 120 in With respect to its longitudinal axis, which is arranged in the support frame 30 or the support bracket 31 and is spring-loaded, the centering ring 62 is automatically aligned on the barrel filler neck 105, even if this should not assume a vertical position relative to the barrel cover plate 101 of the barrel 100. If the screw cap is lifted from the thread of the barrel filler neck 105, then the centering and screwing head 120 returned by means of the helical compression spring 42 to its vertical starting position according to FIGS. 1 and 2. During the unscrewing process of the screw cap 115, the wrench 140 is operatively connected to the screw cap and is rotated by means of the drive device 150 via the drive shaft 53.
  • the screw cap 115 falls off and can be transported away. If the centering and screwing head 120 has assumed an inclined position for the unscrewing process, that is to say it has been tilted, then the centering and screwing head is automatically aligned to the vertical by means of the screw compression spring 42. The unscrewing pressure is absorbed by the helical compression spring 56 when the screw cap 115 is raised. When a screw cap 115 is screwed into the thread of a barrel filler neck 105, the helical compression spring 56 presses the wrench down with the screw cap 115 sucked in by vacuum.
  • the force of the helical compression spring 56 is dimensioned such that the thread of the screw cap 115 and the internal thread 107 of the barrel filler neck 105 are not damaged.
  • the wrench 140 is rotated further in order to ensure that the screw cap 115 is also completely unscrewed from the thread of the barrel filler neck 105, ie the drive of the wrench 140 is maintained until the screw cap 115 has lifted off the barrel filler neck 105.
  • the centering and screwing head 120 of the device 10 is moved into the area of the barrel filler neck 105, the cylindrical hollow body 60 with its centering ring 62 by means of the helical compression spring 61 downward in the direction of the barrel filler neck 105 is pressed.
  • the centering ring 62 is pressed against the peripheral edge 110 of the barrel filler neck 105.
  • the hollow body 60 also lowers with the centering ring 62, the drive shaft 53 then rotating with the wrench 140 when the drive device 150 is started up, the wrench 140 being under the tension of the helical compression spring 56.
  • the centering and screwing head 120 adapts to the respective position of the barrel filler neck 105, even if the longitudinal axis of the barrel filler neck 105 does not extend to the vertical.
  • the outer centering element 130 is pressed against the barrel filler neck 105, the ring portion 65 of the inner wall surface 63 of the centering ring 62 coming to rest on the attachment edge 112 of the edge bead 111 of the barrel filler neck 105 or being pressed against this annular attachment edge 112.
  • the main and the fine alignment of the centering and screwing head 120 then takes place through the interaction of the specially designed contact surface 64 of the inner wall surface 63 of the centering ring 62 with the special design of the peripheral edge 110 of the barrel filler neck 105, and in particular with the attachment edge 112 of the barrel filler neck 105 (Fig.3).
  • the lateral alignment of the centering and screwing head 120 then takes place by means of the conically tapering inner wall surface section on the circular section 114 of the circumferential edge 110 of the barrel filler neck 105, while fine-centering and.
  • Matching to the filler neck 105 takes place.
  • the vertical position to the barrel filler neck 105 is determined and defined by the vertical ring surface 69 of the inner wall 63 of the centering ring 62.
  • the wrench 140 which is in engagement with the screw cap 115, is rotated for the screwing-in process, the screwing-in process being carried out in such a way that First of all, there is a short left turn so that the screw cap 115 engages in the beginning of the internal thread 107 of the barrel filler neck 105. Then the direction of rotation of the drive shaft 53 is changed with the wrench 140 and then the screw cap 115 is screwed into the thread of the barrel filler neck 105 by turning it to the right.
  • the centering and screw head 120 with the drive device 150 is arranged for free movement in the spring 42 or suspended from it.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sealing Of Jars (AREA)
  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
  • Closures For Containers (AREA)

Claims (12)

  1. Dispositif pour le vissage et le dévissage de fermetures à vis (115) en matières plastiques ou en matières métalliques dans le filet intérieur (107) ou hors du filet intérieur (107) d'un ajutage de remplissage (105) de fûts ou récipients, fixé dans la zone d'une découpure (102) dans la plaque de couvercle supérieure (101) du fût ou récipient (100), avec une ouverture de remplissage (106), ajutage dont le bord périphérique (110) qui délimite l'ouverture de remplissage (106) supérieure est pourvu d'un bourrelet de bord (111) situé à l'extérieur qui présente un bord de pose (112) périphérique qui se trouve dans le plan de l'ouverture de remplissage supérieure (106) de l'ajutage de remplissage (105) auquel se rattache une section (114) approximativement circulaire qui se confond dans la paroi extérieure de l'ajutage de remplissage (113), le dispositif pour fûts et récipients présentant une tête de centrage et de vissage (120) composée d'un élément de centrage extérieur (130) qui peut être posé sur l'ajutage de remplissage (105) et d'une clé à vis (140) placée à l'intérieur de cet élément, pouvant être translatée dans le sens axial, pouvant tourner au moyen d'un dispositif d'entraînement (150) et prenant prise dans la fermeture à vis (115), la tête de centrage et de vissage (120) étant placée avec son dispositif d'entraînement dans un élément mobile qui est placé dans un cadre porteur (30) mobile latéralement et/ou en hauteur qui est traversé par un cylindre de guidage (40) qui porte sur son côté supérieur le dispositif d'entraînement (150) pour la clé à vis (140) qui est translatable contre la pression d'un ressort, l'élément de centrage (130) étant composé d'un corps creux cylindrique (60), maintenu dans l'intérieur (43) du cylindre de guidage (40) et translatable dans le sens longitudinal, avec un anneau de centrage (62) configuré du côté du fond, la clé à vis (140) étant placée dans l'intérieur (60c) du corps creux cylindrique (60) et étant reliée à l'arbre moteur (53) placé dans l'intérieur (40c : 60c) du cylindre de guidage (40) du corps creux cylindrique (60) de l'élément de centrage (130).
    caractérisé en ce
    que l'élément mobile est configuré comme un ressort de pression à boudin cylindrique (42) contre lequel s'appuie la tête de centrage et de vissage (120) avec son dispositif d'entraînement (150) pour pouvoir se déplacer librement dans l'espace et au moyen duquel elle peut être translatée dans nimporte quelle position angulaire déviant de l'axe longitudinal de l'ajutage de remplissage et dans nimporte quelle position coïncidant avec la position qui résulte lorsque l'axe longitudinal de l'ajutage de remplissage varie de la verticale pour un ajutage de remplissage (105) cambré vers le haut vers le plan du couvercle du fût ou récipient (100) et peut être remise automatiquement dans la position verticale à partir de nimporte quelle position angulaire et que le cylindre de guidage (40) est placé dans l'intérieur du ressort de pression à boudin (42) cylindrique qui entoure le cylindre de guidage (40), ressort qui s'appuie avec une extrémité (42a) sur le cadre porteur (30) et avec son autre extrémité (42b) sur le cylindre de guidage (40) positionné en étant mobile librement dans le cadre porteur (30).
  2. Dispositif selon la revendication 1, caractérisé en ce qu'une console de support (31). qui est constituée par un corps annulaire (32) supérieur, horizontal et par un corps annulaire (33) inférieur, horizontal, placé à une certaine distance de celui-ci au moyen de bras d'écartement (34) de préférence latéraux. est placée comme cadre porteur (30) sur un bras porteur (20) vertical, mobile verticalement, que le cylindre de guidage (40) est placé dans les ouvertures (32a. 33a) correspondantes l'une à l'autre des deux corps annulaires (32, 33) de la console de support (31) en étant pivotant autour de son axe longitudinal, cylindre qui s'appuie sur le corps annulaire inférieur (33) avec un anneau extérieur (41) périphérique voisin de son extrémité inférieure et qui est chargé par le ressort de pression à boudin (42) cylindrique qui entoure le cylindre de guidage (40) qui s'appuie du côté du fond sur l'anneau extérieur (41) du cylindre de guidage (40) et dans la zone supérieure sur le corps annulaire supérieur (32) de la console de support (31), le ressort à boudin cylindrique (42) étant tendu entre le corps annulaire supérieur (32) de la console de support (31) et l'anneau extérieur (41) du cylindre de guidage (40), que le cylindre de guidage (40) porte, à son extrémité supérieure. un moteur à air (50) avec deux raccords (51, 52) comme dispositif d'entraînement (150) de la clé à vis (140) pour la commande de l'opération de vissage et de dévissage ou un autre entraînement approprié avec un arbre moteur (53) vertical pour la clé à vis (140) placé dans l'intérieur (43) du cylindre de guidage (40), arbre moteur qui peut tourner autour de son axe longitudinal vertical et qui est translatable dans le sens longitudinal contre la pression d'un ressort de pression à boudin (56) cylindrique et qui est pourvu, à son extrémité du côté du fond, de la clé à vis (140) qui peut être amenée en relation mécanique active avec la fermeture à vis (115), qu'un corps cylindrique creux (60) est placé comme élément de centrage (130) dans l'intérieur (43) du cylindre de guidage (40), corps creux qui est translatable dans le sens longitudinal dans le sens longitudinal du cylindre de guidage contre la pression d'un ressort de pression à boudin (61) cylindrique et qui porte, à son extrémité inférieure (60b), l'anneau de centrage (62) dont la surface de paroi intérieure (63) annulaire s'élargit de manière conique vers l'extrémité libre (62a) du côté du fond, la surface de paroi intérieure (63) de l'anneau de centrage (62) qui s'effile de manière conique vers le haut en tant que surface de contact (64) sur le bord de pose (112) périphérique du bourrelet de bord (111) annulaire se confondant en une section annulaire (65) horizontale supérieure à laquelle se rattache, après intercalage d'une section en forme de gradin (66) avec une surface annulaire verticale (67) et une surface annulaire horizontale (68), la surface de paroi intérieure (60c) du corps creux cylindrique (60) de l'élément de centrage (130) dont l'intérieur (69) est relié à un dispositif de génération de vide pour recevoir et garder une fermeture à vis (115) sur la clé à vis (140) au moyen de vide et que la surface de paroi intérieure (63) de l'anneau de centrage (62) qui s'élargit de manière conique vers l'extrémité est dimensionnée de telle manière que, lorsque l'anneau de centrage (62) est posé sur l'ajutage de remplissage (105) du fût, récipient ou équivalent (100), le bourrelet de bord (111) situé à l'extérieur de l'ajutage de remplissage (105) est saisi.
  3. Dispositif selon les revendications 1 et 2, caractérisé en ce que l'arbre moteur (53) pour la clé à vis (140) porte, au-dessus de la clé à vis (140), un disque de mesure (70) horizontal dont le diamètre extérieur correspond au diamètre intérieur du corps creux cylindrique (60) de l'élément de centrage (130) et qui présente, sur sa périphérie extérieure, un certain nombre d'évidements (71), tels que des encoches, rainures et creux configurés d'une autre manière. placés à des écarts égaux les uns des autres. et qu'un détecteur de proximité (75) est placé dans la paroi (60d) du corps creux cylindrique (60) de l'élément de centrage (130) dans le parcours d'avancement et de déplacement du disque de mesure (70), détecteur qui commande et qui surveille la profondeur de vissage et le moment de torsion de vissage.
  4. Dispositif selon les revendications 1 à 3, caractérisé en ce que la longueur de la section de paroi (67) verticale de la surface de paroi intérieure (63) de l'anneau de centrage (62) qui s'effile de manière conique sur sa face intérieure vers son extrémité correspond à la profondeur de vissage de la fermeture à vis (115) ou encore qu'elle est de 5 à 10 mm.
  5. Dispositif selon les revendications 1 à 4, caractérisé en ce que plusieurs ressorts de pression à boudin cylindriques. placés à des écarts égaux les uns des autres et de préférence à un écart qui est de la périphérie du cylindre de guidage (40) sont placés à la place d'un ressort de pression à boudin (42) qui entoure, en tant qu'élément élastique à la manière d'un ressort, le cylindre de guidage (40), ressorts qui s'appuient avec leurs extrémités supérieures sur le corps annulaire supérieur (32) de la console de support (31) et avec leurs extrémités inférieures sur l'anneau extérieur périphérique (41) sur la paroi extérieure du cylindre de guidage (40).
  6. Dispositif selon les revendications 1 à 5, caractérisé en ce que l'arbre moteur (53) pour la clé à vis (140) est configuré en pouvant rentrer et sortir à la façon d'un télescope pour un changement de longueur.
  7. Dispositif selon les revendications 1 à 6, caractérisé en ce que le détecteur de proximité (75) pour le disque de mesure (70) est placé dans la zone inférieure de la paroi (60d) du corps creux cylindrique (60) de l'élément de centrage (130),
  8. Dispositif selon les revendications 1 à 6, caractérisé en ce que le détecteur de proximité (75) est placé dans la paroi (60d) du corps creux cylindrique (60) de l'élément de centrage (130) en étant réglable en hauteur.
  9. Dispositif selon les revendications 1 à 8, caractérisé en ce que, pour un déroulement de l'anneau extérieur (41) du cylindre de guidage (40) sur le corps annulaire (33) de la console de support (31) lors d'une translation du cylindre de guidage (40) de sa position de départ verticale à une position inclinée, l'anneau extérieur (41) présente, dans la zone de sa surface qui s'appuie sur le corps annulaire (33), un bourrelet annulaire avec un profil de section en forme de demi-cercle ou de cercle partiel qui s'engrène dans un profil antagoniste configuré de manière correspondante en forme d'évidement annulaire ou de rainure annulaire dans la surface du corps annulaire (33).
  10. Dispositif selon les revendications 1 à 8, caractérisé en ce que le corps annulaire (33) est en une matière élastique à la manière d'un ressort, comme le plastique ou équivalent avec une reprise élastique qui remet la zone recourbée du corps annulaire (33) dans sa position de départ horizontale, lors d'une sollicitation unilatérale du corps annulaire (33) par le cylindre de guidage (40) au moyen de son anneau extérieur (41).
  11. Dispositif selon les revendications 1 à 8, caractérisé en ce que que le corps annulaire (33) est en une matière élastique à la manière d'un ressort, comme le plastique ou équivalent avec une reprise élastique qui remet la zone recourbée du corps annulaire (33) dans sa position de départ horizontale, lors d'une sollicitation unilatérale du corps annulaire (33) par le cylindre de guidage (40) au moyen de son anneau extérieur (41) et que les bras d'écartement (34) qui relient les deux corps annulaires (32, 33) sont en une matière élastique à la manière d'un ressort, comme le plastique, ou en une autre matière appropriée avec une reprise élastique d'une position recourbée en leur position de départ verticale.
  12. Dispositif selon les revendications 1 à 11, caractérisé en ce que les ouvertures (32a, 33a) des deux corps annulaires (32, 33) sont dimensionnées plus grandes que le diamètre extérieur du cylindre de guidage (40).
EP87113912A 1987-09-09 1987-09-23 Dispositif pour le vissage et le dévissage de fermetures à vis ou similaires dans ou hors des ajutages de remplissage de fûts, récipients ou similaires Expired - Lifetime EP0308528B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE8787113912T DE3779428D1 (de) 1987-09-23 1987-09-23 Vorrichtung zum einschrauben und ausschrauben von schraubkappen od. dgl. in die oder aus den fuellstutzen von faessern, behaeltern u.dgl.
EP87113912A EP0308528B1 (fr) 1987-09-23 1987-09-23 Dispositif pour le vissage et le dévissage de fermetures à vis ou similaires dans ou hors des ajutages de remplissage de fûts, récipients ou similaires
AT87113912T ATE76613T1 (de) 1987-09-23 1987-09-23 Vorrichtung zum einschrauben und ausschrauben von schraubkappen od. dgl. in die oder aus den fuellstutzen von faessern, behaeltern u.dgl.
US07/137,404 US4979350A (en) 1987-09-09 1987-12-23 Device for the screwing in and the screwing out of screw caps etc. into or out of the filler necks of barrels, containers, etc.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP87113912A EP0308528B1 (fr) 1987-09-23 1987-09-23 Dispositif pour le vissage et le dévissage de fermetures à vis ou similaires dans ou hors des ajutages de remplissage de fûts, récipients ou similaires

Publications (2)

Publication Number Publication Date
EP0308528A1 EP0308528A1 (fr) 1989-03-29
EP0308528B1 true EP0308528B1 (fr) 1992-05-27

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Application Number Title Priority Date Filing Date
EP87113912A Expired - Lifetime EP0308528B1 (fr) 1987-09-09 1987-09-23 Dispositif pour le vissage et le dévissage de fermetures à vis ou similaires dans ou hors des ajutages de remplissage de fûts, récipients ou similaires

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Country Link
US (1) US4979350A (fr)
EP (1) EP0308528B1 (fr)
AT (1) ATE76613T1 (fr)
DE (1) DE3779428D1 (fr)

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US5437139A (en) * 1991-11-04 1995-08-01 Anderson-Martin Machine Co. Capping machine head with cap aligning chuck
US5687552A (en) * 1996-03-20 1997-11-18 Abbott Laboratories Adapter system for a capping machine for applying at least one predetermined axial load
DE19628316B4 (de) * 1996-07-13 2006-07-13 Crystal Growing Systems Gmbh Vorrichtung zum Heben, Schwenken und Drehen des Deckels eines Vakuumkessels einer Kristallziehanlage
US6015062A (en) * 1997-11-17 2000-01-18 Dayton Systems Group, Inc. Resealable beverage container and top therefor
JP4153572B2 (ja) * 1997-06-17 2008-09-24 サントリー株式会社 圧力容器のフィッティング締付装置
US7322170B2 (en) * 2004-09-02 2008-01-29 Mediatech, Inc. Apparatus and method of sterile filling of containers
ITTO20060699A1 (it) * 2006-09-29 2008-03-30 Arol Spa "testa di chiusura per una macchina tappatrice automatica"
US7770358B2 (en) * 2007-01-17 2010-08-10 Parata Systems, Llc Devices for capping vials useful in system and method for dispensing prescriptions
US20100307108A1 (en) * 2007-01-17 2010-12-09 John Richard Sink Devices for Capping Vials Useful in System and Method for Dispensing Prescriptions
US7596932B2 (en) * 2007-01-17 2009-10-06 Parata Systems, Llc Devices for capping vials useful in system and method for dispensing prescriptions
EP2031407B1 (fr) * 2007-08-29 2012-06-06 F. Hoffmann-La Roche AG Système de décoiffage
US8444130B2 (en) * 2008-09-30 2013-05-21 Parata Systems, Llc Devices for capping vials useful in system and method for dispensing prescriptions
US10624275B1 (en) * 2010-03-23 2020-04-21 Myles D. Lewis Semi-automated crop production system
US8413410B2 (en) 2010-04-30 2013-04-09 Parata Systems, Llc Devices for capping vials useful in system and method for dispensing prescriptions
DE102013103111A1 (de) * 2013-03-26 2014-10-02 George Robert Collins Halter für eine Behälteraufnahme und Behälteraufnahme
CN106275662B (zh) * 2016-10-08 2018-11-23 嵊州市高新技术发展有限公司 一种圆柱包装桶夹持机构
IT201800002455A1 (it) * 2018-02-07 2019-08-07 Dromont S P A Linea di lavorazione di prodotti fluidi contenuti in contenitori pre dosati.
US10807744B1 (en) 2018-11-14 2020-10-20 Specialty Equipment Fabrication Company Apparatus, systems and methods for manipulating a drum or other container

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Also Published As

Publication number Publication date
ATE76613T1 (de) 1992-06-15
US4979350A (en) 1990-12-25
EP0308528A1 (fr) 1989-03-29
DE3779428D1 (de) 1992-07-02

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