EP0935584A1 - Schraubspindel mit einstellbarem kupplungsmoment - Google Patents

Schraubspindel mit einstellbarem kupplungsmoment

Info

Publication number
EP0935584A1
EP0935584A1 EP97910492A EP97910492A EP0935584A1 EP 0935584 A1 EP0935584 A1 EP 0935584A1 EP 97910492 A EP97910492 A EP 97910492A EP 97910492 A EP97910492 A EP 97910492A EP 0935584 A1 EP0935584 A1 EP 0935584A1
Authority
EP
European Patent Office
Prior art keywords
spindle
jack
screwing
pinion
rack
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.)
Granted
Application number
EP97910492A
Other languages
English (en)
French (fr)
Other versions
EP0935584B1 (de
Inventor
André Graffin
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.)
Serac Group SAS
Original Assignee
Serac Group SAS
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 Serac Group SAS filed Critical Serac Group SAS
Publication of EP0935584A1 publication Critical patent/EP0935584A1/de
Application granted granted Critical
Publication of EP0935584B1 publication Critical patent/EP0935584B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • B67B3/2073—Closing bottles, jars or similar containers by applying caps by applying and rotating preformed threaded caps comprising torque limiting means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/15—Intermittent grip type mechanical movement
    • Y10T74/1526—Oscillation or reciprocation to intermittent unidirectional motion
    • Y10T74/1532—Rack actuator

Definitions

  • Screwing spindle with adjustable tightening torque
  • the invention relates to a screwing spindle with adjustable tightening torque, in particular intended for the insertion by screwing of plugs on packages having threaded necks.
  • Known screwing spindles comprise an electric or pneumatic motor driving a shaft in rotation, one end of which is equipped with a plug gripping device.
  • the spindle shaft is also driven in a vertical movement allowing the plug to be brought into contact and screwed onto a threaded neck.
  • One of the concerns in relation to these pins relates to the control of the tightening torque applied to the plug. It is indeed important that this torque is large enough to ensure effective closure of the packaging and to avoid any untimely loosening of the plug closing it, without the user having to use a tool to open the packaging.
  • a torque limiting device must therefore be interposed between the motor and the spindle shaft in order to transmit a determined tightening torque.
  • a screwing spindle comprising a spindle shaft provided with a gripping device and secured to a spindle pinion driven in rotation by a jack having a rod secured to a transmission member arranged to actuate the pinion, and a pressure adjustment member disposed on a supply line to the jack in a screwing direction.
  • the tightening torque being a direct function of the force applied by the jack and this being a direct function of the supply pressure of the jack by the pressurized fluid
  • the tightening torque is determined by the supply pressure of the actuator so that it simultaneously performs the functions of the drive member and of the torque limiter.
  • the pins according to the invention are therefore simpler and less expensive than current screwing pins.
  • the transmission member comprises a rack.
  • the rack extends parallel to the longitudinal axis of the spindle shaft and the transmission member comprises a bevel gear.
  • the screw spindle according to the invention is therefore particularly compact.
  • the transmission member comprises a free wheel mounted to unidirectionally drive the gripping device in a screwing direction.
  • the jack is integral in translation with the spindle shaft. This arrangement improves the compactness of the screw spindle according to the invention.
  • the transmission member comprises a toothed wheel having a diameter greater than that of the pinion. This makes it possible to multiply the number of screwing turns of the spindle for a given stroke of the jack.
  • At least one sensor is arranged to detect a position of the rod of the jack.
  • the addition of one or more rod position sensors allows verification of the progress of the screwing operation. Indeed, a too large displacement of the rod can reveal an absence of plug, while a too small displacement, when the tightening torque is reached, can be indicative of a plug engaged obliquely on the neck of the packaging. This provides a simple and inexpensive way to ensure the quality of the screwing.
  • the screw spindle according to the invention comprises a vertical guide tube 1, the upper end of which is fixed to a spindle support 2 and which slides vertically in a sleeve 3 secured to a platform rotary 4.
  • the tube 1 rotatably receives a spindle shaft 5 whose lower end projects from the tube 1 and carries a jaw gripping device 6 actuated in a manner known per se.
  • the upper end of the spindle shaft 5 carries a bevel gear 7 cooperating with a motor assembly generally designated at 11.
  • the spindle support 2 is mounted to slide on a column 9 fixed to the rotary platform 4 and carries a roller 8 intended to cooperate with a cam (not shown) to position the support 2 and the parts associated therewith in height .
  • a support plate 10 is fixed to the side of the spindle support 2 and carries the motor assembly 11.
  • the motor assembly 11 comprises an intermediate shaft ⁇ diary 12 mounted for rotation in a bearing 13 carried by the support plate 10.
  • the shaft 12 has one end carrying, by means of a free wheel 20, a return pinion bevel 14 whose teeth are in contact with those of the pinion 7, and an opposite end carrying an input pinion 15 whose teeth are in contact with those of a rack 16.
  • the rack 16 extends vertically and is fixed by its lower end to the rod of a jack 17 with a vertical axis, the body of which is fixed to the support plate 10.
  • the jack is connected to a pressure adjusting member 21 disposed on a supply line 22 for feeding the jack 17 in a direction of screwing the plugs.
  • a support roller 18 with an axis of rotation parallel to that of the input pinion 15 is pivotally mounted at the upper end of the support plate 10 and is disposed substantially opposite the input pinion 15 on a side of the rack opposite to it so that the rack 16 is kept pressed against the input pinion 15.
  • a sensor 19 is fixed to the upper end of the support plate 10 at the extreme position of the rack 16, for a position completely extended from the rod of the jack 17.
  • the platform 4 is rotated relative to a fixed frame by a motor.
  • Packages with threaded necks are brought in and are held in line with the jaw gripping device 6 by a device not shown.
  • the support 2 and all the elements associated with it constitute a set movable in vertical translation but linked in rotation to the platform 4.
  • the vertical positioning of this movable set is ensured by the contact of the roller 8 on the cam track and therefore depends on the profile of the latter.
  • a fluid under a preset pressure by means of the pressure adjusting member 21 is brought to the jack 17.
  • the rod of the jack 17 pushes the rack 16 upwards.
  • the rack 16 rotates the input pinion 15.
  • the input pinion 15 transmits its movement to the gripping device 6 via the shaft 12, pinions 14 and 7, and the spindle shaft 5 pivoting in the guide tube 1.
  • the freewheel 20 is mounted so that the jack 17 drives the spindle shaft 5 in the direction of screwing but does not cause it to rotate when the jack 17 retracts.
  • the pinion 14 preferably has a diameter greater than the pinion 7 in order to obtain a screwing over several turns for a short stroke of the jack 17, which makes it possible to use a jack having a reduced bulk.
  • the tightening torque of the plug causes a resisting torque having a value equal to that of the motor torque resulting from the supply pressure of the jack 17, the screw spindle stops rotating and the rack 16 comes to a standstill.
  • the jack is retracted, either by a feed reversal when the jack is a double-acting jack, or by simple power cut and an elastic return in the case of a single acting cylinder.
  • the spindle shaft 5 remains stationary.
  • the jaws of the gripping device 6 can then be opened without risking scratching the plug.
  • the screw spindle is raised and the assembly is ready for a new cycle.
  • the sensor 19 is arranged at the end of the rack travel beyond the distance that the rack 16 should normally cover to achieve the number of turns necessary for capping.
  • the sensor 19 then controls the conveying of the poorly clogged packaging to a waste circuit.
  • the freewheel 20 has been illustrated between the intermediate shaft 12 and the pinion 14, this freewheel could be placed at any point of the kinematic chain connecting the jack 17 to the gripping device 6. It is also possible plan to make a kinematic chain without freewheel. In this case, it will be necessary to put the jack 17 to the exhaust without retracting it before the jaws open.
  • the rack 16 has been shown in a vertical position, it can be positioned horizontally and brought into direct contact with the pinion 7 which, in this case, is preferably a cylindrical pinion.
  • the invention could be carried out with any mechanism transforming the translational movement of the rod of the jack 17 into a rotational movement to drive the spindle shaft 5, for example a rod-crank type mechanism.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sealing Of Jars (AREA)
  • Transmission Devices (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Jigs For Machine Tools (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
EP97910492A 1996-10-23 1997-10-16 Schraubspindel mit einstellbarem kupplungsmoment Expired - Lifetime EP0935584B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9612907 1996-10-23
FR9612907A FR2754750B1 (fr) 1996-10-23 1996-10-23 Broche de vissage a couple de serrage reglable
PCT/FR1997/001847 WO1998017578A1 (fr) 1996-10-23 1997-10-16 Broche de vissage a couple de serrage reglable

Publications (2)

Publication Number Publication Date
EP0935584A1 true EP0935584A1 (de) 1999-08-18
EP0935584B1 EP0935584B1 (de) 2001-02-28

Family

ID=9496929

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97910492A Expired - Lifetime EP0935584B1 (de) 1996-10-23 1997-10-16 Schraubspindel mit einstellbarem kupplungsmoment

Country Status (9)

Country Link
US (1) US5904067A (de)
EP (1) EP0935584B1 (de)
JP (1) JP3410107B2 (de)
CN (1) CN1105078C (de)
BR (1) BR9712552A (de)
DE (1) DE69704168T2 (de)
ES (1) ES2155673T3 (de)
FR (1) FR2754750B1 (de)
WO (1) WO1998017578A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109867245A (zh) * 2019-04-18 2019-06-11 杭州润笙包装制品有限公司 一种色母粒密封装置

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE602004017368D1 (de) * 2004-06-03 2008-12-04 Toyo Seikan Kaisha Ltd Verschliessmaschinenkopf
CN103896194A (zh) * 2014-04-04 2014-07-02 中山长健医药包装技术有限公司 一种包装管包装机的扭力传送机构
CN103956855A (zh) * 2014-05-21 2014-07-30 哈尔滨工业大学 一种丝母丝杠式双行程电动缸
CN104526305B (zh) * 2014-12-29 2017-05-31 东莞伟嘉塑胶电子制品有限公司 一种自动飞轮入轴机
CN105945932B (zh) * 2016-06-26 2017-11-14 桐乡守敬应用技术研究院有限公司 一种工件移送装置
CN109895007B (zh) * 2019-03-25 2020-10-09 日信电气股份有限公司 一种基于油缸的螺栓拧紧器
CN109895008B (zh) * 2019-03-25 2020-10-09 日信电气股份有限公司 一种用于螺栓的自动液压拧紧器
CN110040672A (zh) * 2019-05-30 2019-07-23 广州工程技术职业学院 单头螺纹封口机及其使用方法
CN112456406B (zh) * 2020-11-17 2022-06-07 山东丰香园食品股份有限公司 一种具有运输功能的全自动芝麻油的灌装机

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1920240A (en) * 1928-09-07 1933-08-01 Hazel Atlas Glass Co Apparatus for vacuum sealing screw cap containers
US3866463A (en) * 1973-11-19 1975-02-18 Smithkline Corp Device for testing the torque required to release a screw cap from its tightened position
US4637423A (en) * 1985-09-27 1987-01-20 Gray David K Pneumatic gas cylinder valve actuator
CN87202153U (zh) * 1987-02-21 1988-01-06 李世伦 一种液压拉伸螺栓拧紧螺母的装置
US4756137A (en) * 1987-03-06 1988-07-12 National Instrument Company, Inc. Capping machine
FR2644094A1 (fr) * 1989-03-10 1990-09-14 Bertaud A Ets Dispositif de vissage a couple de serrage reglable
US5423159A (en) * 1993-07-20 1995-06-13 New England Machinary, Inc. Pivoting roller assembly for tightening container caps
US5473855A (en) * 1994-08-09 1995-12-12 Hidding; Walter E. System for installing closures on containers

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9817578A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109867245A (zh) * 2019-04-18 2019-06-11 杭州润笙包装制品有限公司 一种色母粒密封装置

Also Published As

Publication number Publication date
ES2155673T3 (es) 2001-05-16
DE69704168T2 (de) 2001-09-27
JP2000505025A (ja) 2000-04-25
JP3410107B2 (ja) 2003-05-26
WO1998017578A1 (fr) 1998-04-30
CN1235590A (zh) 1999-11-17
EP0935584B1 (de) 2001-02-28
DE69704168D1 (de) 2001-04-05
BR9712552A (pt) 1999-10-19
CN1105078C (zh) 2003-04-09
US5904067A (en) 1999-05-18
FR2754750B1 (fr) 1998-11-27
FR2754750A1 (fr) 1998-04-24

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