US3854507A - Fraction dispenser - Google Patents

Fraction dispenser Download PDF

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Publication number
US3854507A
US3854507A US00277785A US27778572A US3854507A US 3854507 A US3854507 A US 3854507A US 00277785 A US00277785 A US 00277785A US 27778572 A US27778572 A US 27778572A US 3854507 A US3854507 A US 3854507A
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US
United States
Prior art keywords
cam
operative
racks
rotation
feeder
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
US00277785A
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English (en)
Inventor
M Nishioka
F Tomatsu
R Fukami
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.)
Toyo Seisakusho KK
Original Assignee
Toyo Seisakusho KK
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 Toyo Seisakusho KK filed Critical Toyo Seisakusho KK
Application granted granted Critical
Publication of US3854507A publication Critical patent/US3854507A/en
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Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67C—CLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
    • B67C3/00—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus; Filling casks or barrels with liquids or semiliquids
    • B67C3/02—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus
    • B67C3/20—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus with provision for metering the liquids to be introduced, e.g. when adding syrups
    • 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
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/42—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation
    • B65B43/48—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation using reciprocating or oscillating pushers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67C—CLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
    • B67C7/00—Concurrent cleaning, filling, and closing of bottles; Processes or devices for at least two of these operations
    • B67C7/0006—Conveying; Synchronising
    • B67C2007/006—Devices particularly adapted for container filling

Definitions

  • ABSTRACT A fraction dispenser for delivering predetermined quantities of a sample into receptacles.
  • the invention comprises a group of receptacles individually supported in receptacle racks and a cam driven by a reversible motor, whereby the receptacles are shifted laterally and longitudinally so as to be in position to accept dispensing of the sample.
  • This invention relates to a fraction dispenser for dispensing predetermined measured quantities of a sample into receptacles.
  • the invention is concerned with improvements in a fraction dispenser and has for its object an improved fraction dispenser incorporating a simplified device for shifting receptacles to accept delivery of predetermined amounts of liquid, resulting in compact construction, stable operation, and troublefree maintenance.
  • the fraction dispenser of this invention delivers a fraction of liquid into a series of receptacles.
  • the dispenser comprises a reservoir for the liquid, the reservoir being carried by a balance beam in such a way as to locate an outlet of the reservoir over a case holding racks of receptacles.
  • the invention comprises means for shifting the receptacle racks laterally and longitudinally.
  • the receptacles are shifted laterally and longitudinally so as to be in proper position for delivery of liquid from the reservoir by the action of a single cam driven by a single reversible motor. thereby avoiding the use of complicated combinations of parts such as links, rods. and cams.
  • the invention also provides a safety device protecting the motor against possible overheating in the event that the receptacles are prevented from being shifted by an obstruction, thereby eliminating the necessity of visual control.
  • FIG. 1 is a plan view of the main part of a fraction dispenser according to the invention, partly broken away to show the means for feeding receptacle racks laterally and longitudinally;
  • FIGS. 2(a) and 2(b) are plan views of receptacle racks arranged in a rectangular-shape case
  • FIG. 3 is a sectional view showing the relation between a driving motor and a cam
  • FIG. 4 is a schematical view illustrating the operation of the lateral feeder pawls
  • FIG. 5 is a schematic view illustrating the operation of the lateral feeder pawls.
  • FIG. 6 is a circuit diagram.
  • each space 4 there are provided a pair of openings 5 5 and 5 5 for passing lateral feeder pawls 41 therethrough which are moved therein to push all the racks of one row in the lateral direction. Also, in each space 4 there are lengthy openings 6 and 6 for moving longitudinal feeder pawls 27 therein which push the racks receptacle by receptacle in their longitudinal direction.
  • a disc-shape cam 9 driven by an electric motor 7 which is mounted under the intermediate floor 1 as illustrated in FIG. 3.
  • the rotary shaft f the motor has a threaded portion 18, in which a spring washer 17 is fastened by a nut 19.
  • the cam 9 is freely carried by the rotary shaft 8 of the motor.
  • the nut 19 is tightened, pressure is exerted on the cam surface 12, thereby securing the cam 9 to the rotary shaft 8 of the motor. If an obstruction occurs preventing the cam from rotating, slipping will be caused between the cam surface 12 and the washer 17, thereby enabling the motor 7 to rotate continually. This protects the motor against overheating.
  • the cam 9 has pins 10 and 1 1 on its surface, and each pair of pins 10,, 10 and 11 11 are placed symmetrically in the radial direction as illustrated in FIG. 1. All the pins are equally projected towards the receptacles 51 arranged on the lid plate 2.
  • the cam 9 is provided with four indentations 13, 14, 15, and 16, which are spaced at given intervals. These indentations are engaged by the actuators of microswitches, whereby the switches are appropriately closed and opened to energize and deenergize the motor 7, as is described hereinafter.
  • the longitudinal feeder pawls 27 are uprightly supported by pawl carriers associated with longitudinal feeder plates 28, which are displaceably held by holding posts 29 and guide pins 30.
  • the feeder plates 28 are reciprocally moved substantially in parallel with the lengthy openings 6, thus enabling the pawls 27 to reciprocate therein.
  • the feeder plates 28 are connected with the pins 10 and 11 on the cam 9 by means of arms 31, which have slots 32 for receiving these pins. Accordingly, when the pins are engaged in the slots 32 of the arms, the feeder plates 28 are caused to reciprocate as the cam 9 rotates in the directions of a and b.
  • the guide cam 34 is generally made of resillient material, including a bent portion 35, a horizontal cam face 36 and a slant cam face 37.
  • the feeder plates 28 are provided with pins 33, which are extruded sideways from the feeder plates 28 so as to mount on the guide cam 34. As the pins 33 slide on the guide cam, the feeder plates 28 are caused to be displaced upwardly as illustrated by the dotted lines in FIG. 4. In the bottom of receptacle racks A and B are provided projections 39 to be hooked by the pawls 27.
  • the pawls 27 are also raised to engage one of the projections 39, thus advancing the racks in their longitudinal direction.
  • the distance to be fed is arranged to be P, which is equal to the distance between the centers of the adjacent receptacles.
  • This intermittent motion of the racks is achieved by disengaging the pawls 27 out of the projections 39 when the pins 33 fall from the terminating edge 38 of the horizontal cam face 36.
  • the pins 33 pass underneath the guide cam 34, thus preparing for the next feeding operation.
  • the slant cam face 37 allows the pins 33 to pass thereunder by virtue of its resilient property.
  • the size and length of the guide cam 34 and the feeder plates 28 must be properly determined.
  • the lateral feeding of the receptacle racks is effected by lateral feeder pawls 41 carried by respective carriers 40, and 40 which are associated with lateral feeder plates 42 having a pair of slots 43 and projecting sides 45.
  • the projecting sides 45 are engaged by the pins and 11 on the cam 9, thereby causing the feeder plates 42 to reciprocally move as the cam 9 is rotated in the directions of a and b.
  • this reciprocal movement of the feeder plates is restricted by stopper pins 44 received in the slots 43.
  • the feeder plates 42 are helped by springs 46 to return to their original position.
  • the upright pawls 41 engage the sides of the receptacle racks A, and B, to push all the racks of one row sideways.
  • the motor 7 is rotated in opposite directions by the actuation of switches 20, 21, 22,, 22
  • the switch has a one-way actuator 23 which is closed only when the actuator is in contact with the cam rim 12 on its rotation in the direction of b.
  • the switch 21 is closed as long as the actuator 24 thereof is in contact with the cam rim 12, regardless of the direction of the cam's rotation.
  • the switches 22 are provided with levers protruding outside the case 1, which are to be engaged by the end face of the rack when the rack is completely shifted from onerow to the other as illustrated in FIG. 2. Only slight pressure is required to close the switches.
  • a relay 47 for starting the motor is closed when it receives signals indicating that the receptacle has been filled with a predetermined amount of liquid.
  • Many methods for measuring the quantity of liquid can be selected. For example, a droplet counting method can be employed, wherein the final droplet of liquid produces the signal to the relay 47, thereby enabling the relay to close from the left-hand position to the right-hand position in FIG. 6.
  • a circuit of s-22-20 2l-47-48-49-7-T is completed to start the motor 7, thereby causing the cam 9 to rotate in the counter-clockwise direction indicated by an arrow a in FIG. 1.
  • the cam 9 is reversely rotated in the direction of b leaving the actuator 23 in circumferential contact with the cam.
  • the actuator 23 is a one-way actuator so that the nonactuation of the switch 20 is maintained until the actuators 23 and 24 come into engagement with the indentations 13 and 16.
  • the motor 7 is stopped.
  • the cam 9 is reversely rotated in the direction of b, the longitudinal feeder plates 28 are moved rearwardly to prepare for the next feeding operation.
  • the relay 47 resumes operation, whereby the same procedures as mentioned above'are followed.
  • the receptacles 51 are filled with liquid one by one.
  • the rack is completely shifted in the space 4 as shown in FIG. 2, the top end thereof presses the lever 25 to connect the switches 22, and 22 to the circuit indicated by the dotted lines in FIG. 6.
  • the actuator 23 of the switch is in contact with the indentation 14 of the cam after the cam has continued to rotate in the direction of a as a result of the closed circuit of S-22,-22 49-7-T, which was effected by the actuation of the switches 22, and 22
  • the pins 10, and 10 are separated from the arms 31, and 31 and engage the projecting sides 45, and 45 of the lateral feeder plates 42 whereby the lateral feeder plates 42 are pushed against the springs 46.
  • the upright feeder pawls 41 move all the receptacle racks of each row sideways, thereby emptying the spaces 4 occupied by the racks as illustrated in FIG. 2.
  • a fraction dispenser comprising:
  • first means operative to be selectively engaged by said projection means and operative in response to rotation of said cam to shift said racks in the longitudinal direction;
  • second means operative to be selectively engaged by said projection means and operative in response to rotation of said cam to shift said racks in the lateral direction;
  • first and second means operative to control rotation of said cam to selectively engage said first and second means.
  • guide means for moving said longitudinal feeder pawls in a vertical direction during at least a portion of the movement of said longitudinal feeder pawls in the longitudinal direction.
  • said guide means comprises a guide cam and a guide pin associated with each of said longitudinal feeder pawls, said guide cam having a bent portion, a horizontal portion and a slanted portion, said guide pin being connected to said connecting means and operative to pass over each of said cam portions in succession.
  • c. means connecting each of said lateral feeder pawls to said plurality of plates operative to move said lateral feeder pawls in a lateral direction in response to rotation of said cam.
  • said driving means comprises an electric motor and wherein said control means comprises a plurality of indentations in the surface of said disc-shaped cam, a plurality of switches having arms operative to be engaged by said indentations in said cam surface operative to actuate said switches responsive to rotation of said cam to thereby control rotation of said cam by energization and de-energization of said electric motor.
  • said driving means comprises an electric motor and wherein said control means comprises a plurality of indentations in the surface of said disc-shaped cam, a plurality of switches having arms operative to be engaged by said indentations in said cam surface operative to actuate said switches responsive to rotation of said cam to thereby control rotation of said cam by energization and de-energization of said electric motor.
  • said driving means comprises an electric motor having a shaft with a threaded portion thereon, said cam being freely carried on said shaft, and a spring washer supported on said shaft by a nut operative to exert pressure on said cam to rotate said cam in response to rotation of said shaft.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Analysis And Handling Materials Therefor (AREA)
  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
  • Branching, Merging, And Special Transfer Between Conveyors (AREA)
US00277785A 1971-08-04 1972-08-03 Fraction dispenser Expired - Lifetime US3854507A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP46058800A JPS5035835B2 (en(2012)) 1971-08-04 1971-08-04

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US3854507A true US3854507A (en) 1974-12-17

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US00277785A Expired - Lifetime US3854507A (en) 1971-08-04 1972-08-03 Fraction dispenser

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US (1) US3854507A (en(2012))
JP (1) JPS5035835B2 (en(2012))
CA (1) CA981642A (en(2012))
DE (1) DE2238472A1 (en(2012))
FR (1) FR2149906A5 (en(2012))
GB (1) GB1401658A (en(2012))
IT (1) IT1048401B (en(2012))

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4077444A (en) * 1975-02-12 1978-03-07 Gilson Warren E Fraction collector
US4113436A (en) * 1974-02-15 1978-09-12 Mettler Instrumente Ag Automatic analysis apparatus
US4562871A (en) * 1984-03-16 1986-01-07 Astle Thomas W Rehydrator
US6146419A (en) * 1999-05-13 2000-11-14 Board Of Trustees Of The University Method for forming a hollow prosthesis
CN108982886A (zh) * 2017-06-05 2018-12-11 深圳迈瑞生物医疗电子股份有限公司 样本分析仪进样结构、样本分析仪及采样方法

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50151686U (en(2012)) * 1974-06-03 1975-12-17
GB1576955A (en) * 1977-10-18 1980-10-15 Pye Electronic Prod Ltd Automatic transport mechanism
JPS54106240U (en(2012)) * 1978-01-11 1979-07-26
JPS58154820U (ja) * 1982-04-08 1983-10-17 ヤンマー農機株式会社 エンジン冷却風供給装置
DE4116370A1 (de) * 1990-05-23 1991-11-28 Tetra Pak Gmbh Vorrichtung zum fuellen und verschliessen von fliessmittelpackungen
EP0513439A1 (de) * 1991-05-18 1992-11-19 Tetra Laval Holdings & Finance SA Vorrichtung zum Füllen und Verschliessen von Fliessmittelpackungen

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1397520A (en) * 1921-01-26 1921-11-22 Sealright Co Inc Art of filling containers with ice-cream

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1397520A (en) * 1921-01-26 1921-11-22 Sealright Co Inc Art of filling containers with ice-cream

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4113436A (en) * 1974-02-15 1978-09-12 Mettler Instrumente Ag Automatic analysis apparatus
US4077444A (en) * 1975-02-12 1978-03-07 Gilson Warren E Fraction collector
US4562871A (en) * 1984-03-16 1986-01-07 Astle Thomas W Rehydrator
US6146419A (en) * 1999-05-13 2000-11-14 Board Of Trustees Of The University Method for forming a hollow prosthesis
CN108982886A (zh) * 2017-06-05 2018-12-11 深圳迈瑞生物医疗电子股份有限公司 样本分析仪进样结构、样本分析仪及采样方法
CN108982886B (zh) * 2017-06-05 2021-11-19 深圳迈瑞生物医疗电子股份有限公司 样本分析仪进样结构、样本分析仪及采样方法

Also Published As

Publication number Publication date
IT1048401B (it) 1980-11-20
JPS4825591A (en(2012)) 1973-04-03
GB1401658A (en) 1975-07-16
DE2238472A1 (de) 1973-02-22
CA981642A (en) 1976-01-13
FR2149906A5 (en(2012)) 1973-03-30
JPS5035835B2 (en(2012)) 1975-11-19

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