EP0935584B1 - Schraubspindel mit einstellbarem kupplungsmoment - Google Patents

Schraubspindel mit einstellbarem kupplungsmoment Download PDF

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Publication number
EP0935584B1
EP0935584B1 EP97910492A EP97910492A EP0935584B1 EP 0935584 B1 EP0935584 B1 EP 0935584B1 EP 97910492 A EP97910492 A EP 97910492A EP 97910492 A EP97910492 A EP 97910492A EP 0935584 B1 EP0935584 B1 EP 0935584B1
Authority
EP
European Patent Office
Prior art keywords
spindle
cylinder
assembly according
shaft
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.)
Expired - Lifetime
Application number
EP97910492A
Other languages
English (en)
French (fr)
Other versions
EP0935584A1 (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

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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
    • B67B3/2073—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

  • the invention relates to a screwing spindle with adjustable tightening torque, especially for setting place by screwing caps on packaging with threaded necks.
  • Known screw pins have a electric or pneumatic motor driving in rotation a shaft one end of which is fitted with a gripping plugs.
  • the spindle tree is by elsewhere animated by a vertical movement allowing the setting in contact with the cap and screwing onto a threaded neck.
  • a screw spindle comprising a shaft spindle provided with a gripping device and integral a pinion pinion rotated by a jack having a rod integral with a transmission member arranged to actuate the pinion, and an adjusting member pressure arranged on a cylinder supply line in a screwing direction.
  • the tightening torque being directly function of the force applied by the cylinder and this one being a direct function of the supply pressure of the cylinder by pressurized fluid
  • the tightening torque is determined by the cylinder supply pressure so that it simultaneously performs the functions of organ motor and torque limiter.
  • the pins according to the invention are therefore more simple and less expensive than screwdriver pins current.
  • Another advantage of the invention lies in the causes the adjustment of the tightening torque by several spindles of a multispindle turret can be realized by acting on a pressure adjusting device common power supply for all these pins. We avoid thus at the level of each spindle tedious handling and source of an increasing risk of error with the number of turret pins. This pressure setting supply can also be achieved when the turret is in operation. The invention thus increases the reliability and profitability of such turrets.
  • the transmission member comprises a rack.
  • the rack extends parallel to the longitudinal axis of the spindle shaft and the transmission member comprises a return pinion angle.
  • the screw spindle according to the invention is thus particularly compact.
  • the transmission member comprises a free wheel mounted to drive the device unidirectionally gripping in a screwing direction. So we can return the cylinder to the retracted position before releasing the plug gripper so that at the time of the release of the gripping device it is ensured that the spindle is not subjected to any torque and this is avoided scratch the plug during this release.
  • the jack is secured in translation of 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 allows multiply the number of spindle turns for a given stroke of the cylinder.
  • At least one sensor is arranged to detect a position of the cylinder rod.
  • the screw pin comprises a vertical guide tube 1, the upper end of which is fixed to a support spindle 2 and which slides vertically in a sleeve 3 integral with a rotary platform 4.
  • the tube 1 receives at rotation a spindle shaft 5 whose lower end protrudes from tube 1 and wears a gripping device jaws 6 actuated in a manner known per se.
  • the end upper part of spindle shaft 5 carries a bevel gear 7 cooperating with an engine assembly generally designated as 11.
  • Spindle holder 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 in height and the parts associated with it.
  • a support plate 10 is fixed on the side of the spindle support 2 and carries the motor assembly 11.
  • the motor assembly 11 comprises an intermediate shaft 12 rotatably mounted in a bearing 13 carried by the support plate 10.
  • the shaft 12 has one end bearing, by via a free wheel 20, a return pinion conical 14 whose teeth are in contact with those of the pinion 7, and an opposite end carrying a pinion input 15 whose teeth are in contact with those of a rack 16.
  • rack 16 extends vertically and is fixed by its lower end to the rod of a jack 17 of vertical axis whose body is fixed to the plate support 10.
  • the jack is connected to a device for adjusting pressure 21 arranged on a supply line 22 for supply the jack 17 in a direction of screwing the plugs.
  • a support roller 18 with a parallel axis of rotation to that of the input pinion 15 is pivotally mounted at the end upper of the support plate 10 and is arranged substantially opposite the input pinion 15 on one side of the rack opposite to it so that the rack 16 is kept applied against the pinion input 15.
  • a sensor 19 is attached to the upper end of the support plate 10 at the extreme position of rack 16, for a fully extended position cylinder rod 17.
  • the platform 4 is driven in rotation relative to a fixed frame by a motor.
  • threaded neck packages are brought in and held plumb with the jaw gripping device 6 by a device not shown.
  • Support 2 and all the elements that are attached to it associated constitute a mobile assembly in translation vertical but linked in rotation to the platform 4.
  • the vertical positioning of this mobile assembly is ensured by the contact of the roller 8 on the cam track and depends so the profile of the latter.
  • a fluid under a pressure preset 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 spindle shaft 5 pivoting in the guide tube 1.
  • the freewheel 20 is mounted so that the jack 17 drives spindle shaft 5 in the direction of screwing but does not drive not it in rotation when the cylinder 17 retracts.
  • the pinion 14 preferably has a diameter greater than pinion 7 in order to obtain a screwing on several turns for a short stroke of the jack 17, which makes it possible to use a cylinder having a reduced bulk.
  • the sensor 19 is placed at the end of the stroke of the rack beyond the distance that the rack 16 should normally cover to achieve the number of rounds required for capping.
  • the sensor 19 then controls the conveying of the packaging not properly sealed to a waste circuit.
  • the freewheel 20 has been illustrated between the intermediate shaft 12 and the pinion 14, we could have this freewheel at any point of the kinematic chain connecting the jack 17 to the gripping device 6. It is also possible to provide realize a kinematic chain without freewheel. In this case, it will be necessary to put the jack 17 to the exhaust without retracting it before opening the jaws.
  • rack 16 has been shown in vertical position, it can be positioned horizontally and put it in direct contact with the pinion 7 which, in this case, is preferably a cylindrical pinion.

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)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Jigs For Machine Tools (AREA)

Claims (7)

  1. Schraubspindel umfassend eine mit einer Greifvorrichtung (6) ausgestattete Spindelwelle (5), an der ein Ritzel (7) befestigt ist, das durch eine Motoranordnung (11) drehbar angetrieben ist, dadurch gekennzeichnet, daß die Motoranordnung (11) einen Stellzylinder (17) umfaßt, dessen Kolbenstange mit einem Transmissionsorgan (12, 14, 15, 16) verbunden ist, das derart angeordnet ist, daß es das Ritzel antreibt, und daß die Motoranordnung ein Druckeinstellorgan (21) hat, das in einer den Stellzylinder in Schraubrichtung speisenden Zuführleitung (22) angeordnet ist.
  2. Schraubspindel nach Anspruch 1, dadurch gekennzeichnet, daß diese eine Freilaufkupplung (20) umfaßt, die derart angeordnet ist, daß sie die Greifvorrichtung (6) in eine Schraubrichtung unidirektional antreibt.
  3. Schraubspindel nach Anspruch 1, dadurch gekennzeichnet, daß das Transmissionsorgan (12, 14, 15, 16) eine Zahnleiste (16) umfaßt.
  4. Schraubspindel nach Anspruch 3, dadurch gekennzeichnet, daß sich die Zahnleiste (16) parallel zur Längsachse der Spindelwelle (5) erstreckt und daß das Transmissionsorgan (12, 14, 15, 16) ein Winkeltrieb-Ritzel (14) umfaßt.
  5. Schraubspindel nach Anspruch 1, dadurch gekennzeichnet, daß die Spindelwelle translatorisch beweglich und der Stellzylinder (17) für eine Translationsbewegung mit der Spindelwelle (5) verbunden ist.
  6. Schraubspindel nach Anspruch 1, dadurch gekennzeichnet, daß das Transmissionsorgan (12, 14, 15, 16) ein Zahnrad umfaßt, das einen Durchmesser hat, der größer ist als der Durchmesser des Ritzels.
  7. Schraubspindel nach Anspruch 1, dadurch gekennzeichnet, daß zumindest ein Sensor (19) derart angeordnet ist, daß dieser eine Stellung der Kolbenstange des Stellzylinders (17) erkennt.
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 EP0935584A1 (de) 1999-08-18
EP0935584B1 true 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)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1960936B (zh) 2004-06-03 2010-04-28 东洋制罐株式会社 压盖机的压盖头
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
CN109867245B (zh) * 2019-04-18 2021-01-26 佛山市美拓塑料色母有限公司 一种色母粒密封装置
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

Also Published As

Publication number Publication date
FR2754750A1 (fr) 1998-04-24
JP2000505025A (ja) 2000-04-25
BR9712552A (pt) 1999-10-19
CN1105078C (zh) 2003-04-09
DE69704168D1 (de) 2001-04-05
WO1998017578A1 (fr) 1998-04-30
CN1235590A (zh) 1999-11-17
ES2155673T3 (es) 2001-05-16
DE69704168T2 (de) 2001-09-27
FR2754750B1 (fr) 1998-11-27
JP3410107B2 (ja) 2003-05-26
EP0935584A1 (de) 1999-08-18
US5904067A (en) 1999-05-18

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