US3910010A - Plugging machines - Google Patents

Plugging machines Download PDF

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Publication number
US3910010A
US3910010A US407483A US40748373A US3910010A US 3910010 A US3910010 A US 3910010A US 407483 A US407483 A US 407483A US 40748373 A US40748373 A US 40748373A US 3910010 A US3910010 A US 3910010A
Authority
US
United States
Prior art keywords
carriage
strand
knife edge
fibrous
severing
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
US407483A
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English (en)
Inventor
Ronald W Cowley
Reginald Hallwood
Norman Lockwood
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.)
John Poulten Ltd
Original Assignee
John Poulten Ltd
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 John Poulten Ltd filed Critical John Poulten Ltd
Application granted granted Critical
Publication of US3910010A publication Critical patent/US3910010A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
    • B65B61/20—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for adding cards, coupons or other inserts to package contents
    • B65B61/22—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for adding cards, coupons or other inserts to package contents for placing protecting sheets, plugs, or wads over contents, e.g. cotton-wool in bottles of pills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
    • B01L3/50—Containers for the purpose of retaining a material to be analysed, e.g. test tubes
    • B01L3/508—Containers for the purpose of retaining a material to be analysed, e.g. test tubes rigid containers not provided for above
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • G01N35/10—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
    • G01N2035/1027—General features of the devices
    • G01N2035/1048—General features of the devices using the transfer device for another function
    • G01N2035/1053—General features of the devices using the transfer device for another function for separating part of the liquid, e.g. filters, extraction phase
    • 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
    • Y10T83/00—Cutting
    • Y10T83/202—With product handling means
    • Y10T83/2092—Means to move, guide, or permit free fall or flight of product
    • Y10T83/2096—Means to move product out of contact with tool
    • Y10T83/2135—Moving stripper timed with tool stroke
    • 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
    • Y10T83/00—Cutting
    • Y10T83/788—Tool pair comprises rotatable anvil and fixed-type tool
    • Y10T83/793—Anvil has motion in addition to rotation [i.e., traveling anvil]

Definitions

  • a fibrous strand usually cotton wool rov- [52] US. Cl. 53/115; 83/129; 83/510; ing
  • the means having a knife edge, and a relatively 53/123 movable roller arranged to roll along the knife edge B65B 6 B653 55/ 0 and cut the strand.
  • the fibrous strand is fed Field Of Search 3, 0, by increments vertically downwardly under gravity 53/264, 319, 321, 328; 83/129, 130, 510 towards the severing means, so as to avoid the formation of fluff which occurs when pneumatic feeders are [56] References Cited used.
  • the invention relates to a machine for inserting a plug of a fibrous material into the end of a hollow member such as a pipe, and more particularly to a machine for inserting a plug of roving into the end of a pipette.
  • apparatus for inserting a fibrous plug into the end of a hollow member comprising means for severing a portion of a fibrous strand which is to form the plug from a length thereof, the means having a knife edge, a relatively movable roller arranged to roll along the knife edge and means urging the roller into contact with the knife edge.
  • the invention provides apparatus as defined above comprising means for feeding the fibrous strand by increments vertically downwardly towards the severing means.
  • the roving has often been conveyed by shuttle, pneumatic devices or gears. In view of the nature of cotton wool these methods lead to the production of large amounts of fluff.
  • the arrangement defined above in which the roving is fed vertically downwards under gravity avoids this disadvantage.
  • Preferably means are provided for clamping the roving against movement during the severing operation.
  • Advantageously means are also provided for moving the end of the roving laterally away from the severing means after each severing operation.
  • the machine preferably comprising means for inserting the cut portion of roving into the end of the pipe comprising a needle-like probe mounted for reciprocation into and out of the end of the tube.
  • the means for reciprocating the probe and for feeding the roving vertically downwards preferably comprises pneumatically actuated rams.
  • FIG. 1 is a side elevation of a pipette plugging machine
  • FIG. 2 is a front end elevation of the machine shown in FIG. 1; 7
  • FIG. 3 is an exploded perspective view ofpart of the machine
  • FIG. 4 is a perspective view of another part of the machine.
  • FIG. 5 shows the pneumatic circuit of the machine.
  • the pipette plugging machine shown in the drawings is a hand operated machine intended for laboratory use or the like.
  • the material which forms the plugs is preferably cotton wool which has been loosely spun to form a continuous roving which can be fed to the machine from a'bobbin.
  • the machine comprises a frame having two opposed members 22 and 23 respectively which are formed with corresponding oppositely arranged slots 24, which together define a generally horizontal track.
  • a carriage 6 having pivoted thereon three horizontally disposed rollers 26, 27, 28 is arranged so that the rollers engage the slots 24 in the machine frame whereby the carriage can move along the track-in a horizontaldirection.
  • a first pneumatic ram 5 is stationarily mounted on the machine frame and the piston rod 25 thereof is operatively connected to the carriage 6 so as to move the carriage along the track when the ram is actuated.
  • amember 29 carrying a generally horizontally disposed needle-like prove 7 which is aligned in the direction of movement of the carriage.
  • a pipette block 30 is disposed on the machine frame at the forward end of the range of movement of the carriage and has an aperture 2 which is concentric with the axis of the probe 7 so that when the carriage is moved to its fully forward position the probe enters the aperture.
  • Mounted on the member 23 is a knife bar 13 of square crosssection and having a cutting edge 31 aligned with the direction of movement of the carriage.
  • the disposition of the roller 28 on the carriage 6 is such that when the carriage is advanced the roller runs along the knife edge.
  • the roller 26 is mounted opposite to the roller 28 and in Contact therewith so as to prevent movement of the roller 28 away from the knife edge.
  • a dislodging arm 12 which is pivoted on the track member 23 for movement in a horizontal plane.
  • the dislodging arm extends generally in the direction of motion of the carriage.
  • the forward end of the dislodging arm is disposed above the knife edge and carried a guide member 32 in the form of a U-shaped member.
  • the forward end of the carriage is formed with a plate-like guide member 33 which co-operates with the guide member 32 to fonn a closed guide channel.
  • the disposition of the parts 32 and 33 is such that the four sides of the guide channel mate when the carriageis in its fully retracted position.
  • the carriage and the disloding arm carry cooperating pins 11 and 34 respectively whereby when the carriage is in its fully retracted position the arm is caused to swing away from the knife edge.
  • Forward motion of the carriage causes the knife engaging roller 28 to engage an abutment 35 on the arm, which in this case is an extension of the guide member 32, so as to swing the arm 12 towards the knife edge.
  • the feed wheel 20 is stationarily but rotatably mounted on the frame but the feed wheel 21 is mounted on a spring biased arm 36 so as to be urged against the drive wheel 20.
  • the feed wheel 20 is flanged and part of the feed wheel 2l is normally disposed within the flanged portion of the wheel 20.
  • the feed wheel 20 is connected via a ratchet mechanism 19 to an arm 18 whereby the wheel may be rotated in one direction by a second pneumatic ram 17 which is trunnion mounted on the machine frame and which has a piston rod 37 con nected to the arm 18.
  • a clamping arm 9 Mounted on the underside of the member 23 below the dislodging arm 12 for pivotal movement in a horizontal plane is a clamping arm 9 having at its forward end a clamping member 40, the clamping arm being spring biased to hold the clamping member against a plate 41 disposed below the knife edge.
  • the clamping arm carries a pin 38 which cooperates with a pin 10 on the carriage when the carriage is fully retracted to move the clamping member 40 away from the plate 41.
  • the machine frame also has mounted thereon first and second valves 4 and 16 (e.g. five port valves) which cooperate respectively with the first and second pneumatic rams 5 and 17.
  • the actuator 3 for the first valve 4 is disposed immediately behind the pipette block 30.
  • the actuator 15 for'the second valve 16 is disposed above the carriage and is arranged for cooperation with a pin 14 on the carriage.
  • the arrangement is such that insertion of a pipette into the bore 2 in the pipette block actuates the valve 4 to cause the advance of the carriage, and retraction of the carriage on removal of the pipette from the pipette block causes the pin 14 on the carriage to engage the actuator 15 for the second valve which in turn causes the second pneumatic ram 17 to rotate the feed wheels.
  • the ratchet mechanism 19 ensures that no counter-rotation of the feed wheels takes place when the ram 17 retracts.
  • roving is loaded into the machine by pulling forward a lever 1 which is carried by the arm 36 to disengage the feed roller 21 from the roller 20.
  • the roving is then inserted between the feed rollers and is fed down through the guide channel formed by the members 32 and 33.
  • the lever l is then released so that the wheels grip the roving and the air supply to the machine is switched on.
  • a pipette 42 is then inserted into the aperture 2 to engage the arm 3 which causes the carriage 6 carrying the probe 7 and cutting roller 28 to advance to the forward position. In doing so the pin on the carriage becomes disengaged from the pin on the clamping arm which allows a clamping member 40 on the forward end of the arm 9 to move over and clamp the roving against the plate on the machine frame.
  • the roller 28 then cuts the roving where it crosses the knife edge and the probe 7 pushes the cut portion of the roving into the end of the pipette to form a plug therein.
  • the pneumatic circuit is illustrated with reference to FIG. 5 of the drawings. Air under pressure is supplied to the machine through an on/off switch and via a pressure regulator. Upstream of the regulator is disposed a high pressure feed off to a de-plugging device by means of which plugs of roving can be removed from pipettes if desired.
  • the sequence of operation of the pneumatic circuit is as follows.
  • the actuating arm 3 moves to its rest position and shuts off the air supply to the front of the carriage ram and instead supplies air to the rear end of the carriage ram 5, causing it to outstroke and in so doing moving the carriage to its fully retracted position.
  • the carriage strikes against the roller actuator 15 and in doing so shuts off the air supply to the front of the ratchet ram and supplies air to the rear end of the ram thus causing it to outstroke and rotate the feed wheels 20, 21.
  • Apparatus for inserting a fibrous plug into the end of a hollow member comprising severing means, means for feeding a fibrous strand incrementally and vertically downwardly toward said severing means for cutting plug lengths from the end of the strand, said severing means including a knife edge and a roller, a reciprocatable carriage movable relative to said knife edge, said roller connected to said reciprocatable carriage and connected to roll along said knife edge to sever a plug length from the end of the strand disposed therebetween, a needle-like probe connected to said carriage and adapted to contact a severed plug length of fibrous material and to insert it into the end of the hollow member, means connected for reciprocating the carriage, means for clamping the end of the strand against movement during severing by said roller and knife edge, and means for moving the end of the fibrous strand laterally away from the severing means after a plug length has been cut away therefrom, the means for moving the end of the strand being connected for operation by the reciprocatable
  • Apparatus according to claim 1 wherein said means for clamping the end of the fibrous strand against movement during severing is connected for operation by the reciprocating carriage.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Sealing Of Jars (AREA)
  • Closing Of Containers (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US407483A 1972-11-10 1973-10-18 Plugging machines Expired - Lifetime US3910010A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5214472A GB1414332A (en) 1972-11-10 1972-11-10 Plugging machines

Publications (1)

Publication Number Publication Date
US3910010A true US3910010A (en) 1975-10-07

Family

ID=10462799

Family Applications (1)

Application Number Title Priority Date Filing Date
US407483A Expired - Lifetime US3910010A (en) 1972-11-10 1973-10-18 Plugging machines

Country Status (5)

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US (1) US3910010A (US06589383-20030708-C00041.png)
JP (1) JPS5234993B2 (US06589383-20030708-C00041.png)
DE (1) DE2356131C3 (US06589383-20030708-C00041.png)
FR (1) FR2206238B1 (US06589383-20030708-C00041.png)
GB (1) GB1414332A (US06589383-20030708-C00041.png)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996028347A2 (en) * 1995-03-08 1996-09-19 The Procter & Gamble Company Handling device for layered cellulose products
US5950405A (en) * 1995-03-08 1999-09-14 The Procter & Gamble Company Handling device for layered cellulose products, in particular cotton wool pads
CN106428832A (zh) * 2016-11-08 2017-02-22 深圳市科迈威包装机械有限公司 一种定长切绳穿绳装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2764860A (en) * 1949-02-23 1956-10-02 James A Harrison Plug for test tubes and the like, and method and machine for making and inserting plugs
US3017795A (en) * 1957-06-06 1962-01-23 Falls Paper & Power Company Method and apparatus for forming individual wrapped pads from otherwise continuous batt strips
US3138985A (en) * 1960-07-05 1964-06-30 Emmett R Mills Means for perforating plastic films
US3157012A (en) * 1961-09-29 1964-11-17 Upjohn Co Receptacle stoppering device
US3460315A (en) * 1965-10-22 1969-08-12 Owens Illinois Inc Pipet plugger

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2764860A (en) * 1949-02-23 1956-10-02 James A Harrison Plug for test tubes and the like, and method and machine for making and inserting plugs
US3017795A (en) * 1957-06-06 1962-01-23 Falls Paper & Power Company Method and apparatus for forming individual wrapped pads from otherwise continuous batt strips
US3138985A (en) * 1960-07-05 1964-06-30 Emmett R Mills Means for perforating plastic films
US3157012A (en) * 1961-09-29 1964-11-17 Upjohn Co Receptacle stoppering device
US3460315A (en) * 1965-10-22 1969-08-12 Owens Illinois Inc Pipet plugger

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996028347A2 (en) * 1995-03-08 1996-09-19 The Procter & Gamble Company Handling device for layered cellulose products
WO1996028347A3 (en) * 1995-03-08 1996-11-14 Procter & Gamble Handling device for layered cellulose products
US5950405A (en) * 1995-03-08 1999-09-14 The Procter & Gamble Company Handling device for layered cellulose products, in particular cotton wool pads
CN106428832A (zh) * 2016-11-08 2017-02-22 深圳市科迈威包装机械有限公司 一种定长切绳穿绳装置
CN106428832B (zh) * 2016-11-08 2019-03-12 深圳市科迈威包装机械有限公司 一种定长切绳穿绳装置

Also Published As

Publication number Publication date
DE2356131A1 (de) 1974-05-22
FR2206238A1 (US06589383-20030708-C00041.png) 1974-06-07
DE2356131C3 (de) 1978-08-17
FR2206238B1 (US06589383-20030708-C00041.png) 1978-11-17
JPS49134474A (US06589383-20030708-C00041.png) 1974-12-24
GB1414332A (en) 1975-11-19
DE2356131B2 (de) 1977-12-15
JPS5234993B2 (US06589383-20030708-C00041.png) 1977-09-06

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