EP0275569B1 - Liquid filling nozzle - Google Patents

Liquid filling nozzle Download PDF

Info

Publication number
EP0275569B1
EP0275569B1 EP19870201565 EP87201565A EP0275569B1 EP 0275569 B1 EP0275569 B1 EP 0275569B1 EP 19870201565 EP19870201565 EP 19870201565 EP 87201565 A EP87201565 A EP 87201565A EP 0275569 B1 EP0275569 B1 EP 0275569B1
Authority
EP
European Patent Office
Prior art keywords
main body
resistance member
nozzle main
stem
nozzle
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
Application number
EP19870201565
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0275569A3 (en
EP0275569A2 (en
Inventor
Masao C/O Shikoku Kakoki Co. Ltd. Shimokawa
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.)
Shikoku Kakoki Co Ltd
Original Assignee
Shikoku Kakoki Co 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 Shikoku Kakoki Co Ltd filed Critical Shikoku Kakoki Co Ltd
Publication of EP0275569A2 publication Critical patent/EP0275569A2/en
Publication of EP0275569A3 publication Critical patent/EP0275569A3/en
Application granted granted Critical
Publication of EP0275569B1 publication Critical patent/EP0275569B1/en
Expired 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
    • B65B39/00—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers
    • B65B39/001—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers with flow cut-off means, e.g. valves
    • B65B39/002—Pivoting plates

Definitions

  • the present invention relates to a liquid filling nozzle for use in filling a liquid, such as flowable food, into containers.
  • filling nozzles are usable free of any problem for free-flowing liquids such as milk but encounter difficulty in handling at a high speed liquids, such as fresh cream and yoghurt, which are low in flowability since such a liquid is not dischargeable from the nozzle quickly and can not be cut sharp, whereas the present applicant has already proposed a nozzle by which even a liquid of low flowability can be filled into containers at a high speed free of trouble like free-flowing liquids.
  • the proposed nozzle comprises a tubular nozzle main body, a damper attached to the lower end of the nozzle main body and movable upward and downward, a spring suspending member fixedly provided within the main body at an upper portion thereof, a coiled spring suspended from the suspending member, a member connecting the lower end of the spring to free ends of the damper, and a resistant member secured to the connecting member and positioned below the coiled spring for acting against a downwardly flowing liquid.
  • the nozzle When a liquid is forced into the filling nozzle, the liquid pressure acting on the damper opens the damper against the force of the coiled spring, while the liquid pressure on the resistant member also acts to open the damper, opening the damper correspondingly to a greater extent. Consequently, the liquid flows out of the nozzle main body quickly without permitting formation of air bubbles due to agitation of the liquid that would occur at a low flow rate.
  • the nozzle is adapted for a high-speed filling operation.
  • the main object of the present invention is to provide a filling nozzle for filling a liquid into containers at a higher speed than the foregoing nozzle.
  • the liquid filling nozzle of the present invention comprises a vertical tubular nozzle main body, a damper attached to the lower end of the nozzle main body and pivotally movable upward and downward, a resistance member extending within the nozzle main body and being movable upward and downward, a member connecting free ends of the damper to the resistance member, and a resilient member biasing the resistance member upward as known from EP-A-0 138 234.
  • the nozzle main body has a reduced diameter portion at an intermediate portion of its height, the arrangement being such that from the rest position where the resistance member is positioned in said reduced diameter portion the resistance member during liquid flow will be shifted in a downward direction to such extent that it leaves said reduced diameter portion.
  • Figs. l and 2 show a liquid filling nozzle which is connected to a filing cylinder ll of a filling machine, with a check valve l2 provided therebetween.
  • the nozzle comprises a vertical tubular nozzle main body l4 having a reduced diameter portion l3 at an intermediate portion of its height, a damper l5 attached to the lower end of the main body l4 and pivotally movable upward and downward, a resistance member l6 extending within the main body l4 from the reduced diameter portion l3 to a portion therebelow and movable upward and downward to act against a downwardly flowing liquid, a guide member l7 for guiding the upward and downward movement of the resistant member l6, a connecting member l8 connecting the free ends of components of the damper l5 to the resistant member l6, and a resilient member l9 biasing the resistant member l6 upward.
  • the nozzle main body l4 comprises an upper member 2l, an intermediate member 22 and a lower member 23.
  • the upper member 2l comprises an upper-end large diameter portion 25, an intermediate portion 26 having an increasing diameter upward, and a lower-end small diameter portion 27.
  • the large diameter portion 25 is equal in inside diameter to the filling cylinder ll and is provided with a flange 28 around its upper end.
  • the nozzle main body l4 is connected to the filling cylinder ll with a flanged nut 29 which is screwed on an externally threaded portion 3l at the lower end of the cylinder ll, with the flange 30 of the nut 29 engaged with the flange 28 from below.
  • the lower-end small diameter portion 27 has a flange 32 therearound at an intermediate portion of its height. Under the flange 32, the small diameter portion 27 includes a spigot 33 having a uniform diameter and a smooth-surfaced outer periphery. An annular groove 34 is formed in the outer surface of the spigot 33.
  • the intermediate member 22 comprises an upper-end small diameter portion 36, an intermediate tapered portion 37 having an increasing diameter downward and a lower-end large diameter portion 38.
  • the small diameter portion has a smooth inner surface and provides a socket 39 with the spigot 33 fitted therein.
  • the small diameter portion 36 is formed with slits 40 opposed to the annular groove 34 in the spigot 33.
  • a retaining ring 4l is fitted in the groove 34 through the slits 40, whereby the spigot 33 is prevented from slipping off from the socket 39.
  • a rotation preventing pin 42 is implanted through the flange 32 of the small diameter portion 27 of the upper member 2l in the upper end of the small diameter portion 36 of the intermediate member 22.
  • the lower-end small diameter portion 27 of the upper member 2l and the upper-end small diameter portion 36 of the intermediate member 22 provide the overall reduced diameter portion l3 of the nozzle main body l4.
  • the lower-end large diameter portion 38 is externally threaded as at 43.
  • the lower member 23 comprises a circular upper tubular portion 45 and a quadrilateral lower tubular portion 46.
  • the upper tubular portion 45 is approximately equal in diameter to the lower-end large diameter portion 38, of the intermediate member 23.
  • the upper tubular portion 45 is internally threaded as at 47 and has screwed therein the externally threaded lower end 43 of the intermediate member 22, whereby the lower member 23 is joined to the intermediate member 22. With these members thus joined together, a flange 48 on the inner surface of the circular tubular portion 45 is at a small distance away from the lower end of the intermediate member 22.
  • the lower tubular portion 46 has at its lower end a quadrilateral edge defining an opening. Two inverted trapezoidal guide plates 49 opposed to each other extend downward from two opposed sides of the quadrilateral edge.
  • the damper l5 comprises a pair of hingedly openable plates 5l provided between the two guide plates 49.
  • Each of the openable plates 5l comprises a quadrilateral bottom wall 52, and a pair of triangular side walls 53 extending upright from the opposite edges of the bottom wall.
  • the bottom wall 52 is secured at one end thereof corresponding to the base portion of the plate 5l to a horizontal pin 54.
  • the horizontal pin 54 is rotatably supported at its opposite ends by the upper edges of the guide plates 49 each at the corresponding end thereof.
  • each side wall 53 of the plate 5l is in sliding contact with the inner surface of the guide plate 49 opposed thereto.
  • An upward lug 55 is centrally formed on the upper surface of the bottom wall 52 of each openable plate 5l.
  • a hole 56 is formed in the lug 55.
  • the resistant member l6 is in the form of a mushroom and comprises a vertical stem 6l and a horizontal disklike head 62 secured to the upper end of the stem 6l.
  • the lower end of the stem 6l is in the form of a vertical plate formed with a hole 63.
  • the head 62 has a central bore 64 through which the upper end of the stem 6l is inserted.
  • a retaining ring 65 is fitted around the upward porjection of the stem 6l above the head.
  • the upper surface of the head 62 is frustoconical.
  • the guide member l7 comprises a tubular portion 7l having the stem 6l slidably extending therethrough, arms 72 radially extending from the tubular portion 7l in a Y-shaped arrangement when seen from above, and an annular portion 73 interconnecting the outer ends of the arms 72.
  • the annular portion 73 is fixedly fitted in the clearance between the lower end of the intermediate member 22 and the flange 48 inside the lower member 23.
  • the connecting member l8 comprises an upper rod 8l and two lower rods 82.
  • the upper rod 8l has upper and lower bent ring portions 83, 84 at its upper and lower ends, respectively.
  • Each of the lower rods 82 has upper and lower bent hook portions 85, 86 at its upper and lower ends, respectively.
  • the upper ring portion 83 is passed through the hole 63 in the lower end of the stem 6l.
  • the upper hook portions 85 of the two lower rods 82 are engaged with the lower ring portion 84.
  • the lower hook portions 86 of the two lower rods 82 are respectively engaged in the holes 56 in the lugs 55 on the two plates 5l.
  • the resilient member l9 comprises a coiled compression spring which is provided between the tubular portion 7l of the guide member l7 and the head 62 of the resistant member l6 around the stem 6l thereof.
  • the spring has such a force as to hold the damper l5 closed against the gravity acting on the damper l5 and on the liquid within the nozzle main body l4.
  • Fig. 3 shows another embodiment, in which the stem 9l of the resistant member l6 has a downward lug 92 formed with two holes 93.
  • the connecting member l8 of this embodiment comprises two upper rods 94 and two lower rods 95.
  • Each upper rod 94 has a bent hook portion 96 at its upper end and a bent ring portion 97 at its lower end.
  • the hook portions 96 of the two upper rods 95 are engaged respectively in the two holes 93 in the lug 92 at the lower end of the stem 9l.
  • Each of the two lower rods 95 is in the form of an annular ring in its entirety.
  • the rod 95 is passed through the hole 56 of the corresponding openable plate 5l and the ring portion 97 of the corresponding upper rod 94.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supply Of Fluid Materials To The Packaging Location (AREA)
  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
EP19870201565 1987-01-23 1987-08-18 Liquid filling nozzle Expired EP0275569B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1484587A JPS63191796A (ja) 1987-01-23 1987-01-23 液体充填ノズル
JP14845/87 1987-01-23

Publications (3)

Publication Number Publication Date
EP0275569A2 EP0275569A2 (en) 1988-07-27
EP0275569A3 EP0275569A3 (en) 1990-03-07
EP0275569B1 true EP0275569B1 (en) 1992-06-03

Family

ID=11872373

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19870201565 Expired EP0275569B1 (en) 1987-01-23 1987-08-18 Liquid filling nozzle

Country Status (3)

Country Link
EP (1) EP0275569B1 (enrdf_load_stackoverflow)
JP (1) JPS63191796A (enrdf_load_stackoverflow)
DE (1) DE3779609T2 (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100526162C (zh) * 2007-08-13 2009-08-12 山东泉林包装有限公司 用于液体包装设备的填充管
DE102016205859A1 (de) * 2016-04-07 2017-10-12 Rovema Gmbh Abgabevorrichtung zur Anordnung im Formatrohr einer Schlauchbeutelmaschine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1204712A (en) * 1982-05-28 1986-05-20 Badruddin K. Rangwala Filler means for charging containers
JPS5926550A (ja) * 1982-08-02 1984-02-10 カネボウ株式会社 製織方法
JPS6045192A (ja) * 1983-08-19 1985-03-11 四国化工機株式会社 液体の定量充填装置

Also Published As

Publication number Publication date
JPH0471795B2 (enrdf_load_stackoverflow) 1992-11-16
EP0275569A3 (en) 1990-03-07
EP0275569A2 (en) 1988-07-27
JPS63191796A (ja) 1988-08-09
DE3779609D1 (de) 1992-07-09
DE3779609T2 (de) 1993-01-21

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