EP0021986B1 - Dispositif pour déposer automatiquement une substance pâteuse sur une surface et machine automatique s'y rapportant - Google Patents

Dispositif pour déposer automatiquement une substance pâteuse sur une surface et machine automatique s'y rapportant Download PDF

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Publication number
EP0021986B1
EP0021986B1 EP80400889A EP80400889A EP0021986B1 EP 0021986 B1 EP0021986 B1 EP 0021986B1 EP 80400889 A EP80400889 A EP 80400889A EP 80400889 A EP80400889 A EP 80400889A EP 0021986 B1 EP0021986 B1 EP 0021986B1
Authority
EP
European Patent Office
Prior art keywords
housing
cylinder
piston
pressurized gas
open end
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
EP80400889A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0021986A1 (fr
Inventor
Bertrand Saint Georges Chaumet
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.)
Intrama Sa SA
Original Assignee
Intrama Sa SA
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 Intrama Sa SA filed Critical Intrama Sa SA
Publication of EP0021986A1 publication Critical patent/EP0021986A1/fr
Application granted granted Critical
Publication of EP0021986B1 publication Critical patent/EP0021986B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L13/00—Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
    • B43L13/02—Draughting machines or drawing devices for keeping parallelism
    • B43L13/022—Draughting machines or drawing devices for keeping parallelism automatic
    • B43L13/024—Drawing heads therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F17/00—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
    • B41F17/08—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces
    • B41F17/14—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces on articles of finite length
    • B41F17/16—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces on articles of finite length on end or bottom surfaces thereof

Definitions

  • the present invention relates to a device for automatically depositing, on a surface, a pasty substance packaged in a tight and flexible tank.
  • the invention also relates to an automatic marking machine comprising several of these devices.
  • the device targeted by the invention is mainly intended for marking various objects, the pasty substance contained in the sealed and flexible tank in this case consisting of ink or paint.
  • this pasty substance may be a grease, an adhesive, a putty or other sealing or sealing products, or else a chemical reagent intended to be deposited on an object.
  • This marking can be carried out by a marking device comprising a paint refill comprising an outlet orifice through which the paint is expelled when the refill is compressed.
  • this shutter The expulsion of the paint by this valve this shutter is obtained by controlling the introduction of compressed air into the housing to compress the refill, and by placing the end of the nozzle on the surface to be marked to push in and open the valve.
  • Such a device can be used, to mark automatically, various objects scrolling for example continuously, opposite the outlet nozzle of the refill.
  • this marking device can be associated with means making it possible to bring it intermittently into contact with the successive objects to be marked.
  • the object of the present invention is to remedy the drawbacks of known embodiments, by creating an automatic device, in particular for marking objects, of very convenient use and which can be used in many fields of industry.
  • the device targeted by the invention for automatically depositing on a surface a pasty substance packaged in a tight and flexible reservoir comprises a sealed case in which this reservoir is removably disposed, the outlet orifice for the pasty substance from this reservoir being connected to an outlet nozzle comprising at its end a shutter valve which can open by contact with the surface, and the housing being connected to a source of gas under pressure, means being provided for controlling the arrival of this gas inside the housing.
  • this device is characterized in that the housing comprises a cylinder open at its free end and surrounding the outlet nozzle, a piston made integral with this nozzle and the reservoir, slidably mounted inside this cylinder, in this guedes means are provided to control the sliding of this piston towards the open end of the cylinder, so as to project the outlet nozzle outside the open end of the cylinder, and in that it further comprises means for returning the piston to the housing after the action of compressed gas has ceased.
  • the distance between the shutter valve of the tank nozzle and the objects does not need to be adjusted with precision. It suffices that the stroke of the piston is sufficient to allow the valve to touch the object. Furthermore, even if the valve of the nozzle touches the object before the end of the possible stroke of the piston, the valve does not risk any deterioration, thanks to the damping effect exerted by the compressed gas.
  • the means for controlling the sliding of the piston comprise means allowing the simultaneous introduction of pressurized gas into the housing and into the cylinder.
  • the aforementioned means consist of a communication between the cylinder and the housing.
  • This arrangement allows a significant simplification of the device.
  • the marking device 1 is mounted on a fixed station on a frame facing a surface 3 on which objects 4 are placed, such as mechanical parts produced in series, intended to be marked with means of the device.
  • the surface 3 is constituted for example by a conveyor belt moving continuously in the direction of the arrow F.
  • the marking device 1 comprises a reservoir or tube 5 with a flexible wall containing a pasty marking substance 6, such as a paint or an ink.
  • This tube 5 is housed in a housing 7 axially surrounding this tube.
  • the tube 5 is fixed to an outlet nozzle 8 for the marking substance 6 carrying at its free end 9 a shutter valve 10.
  • This valve 10 is held in the closed position by a spring 11 housed inside the free end 9 of the nozzle 8.
  • This valve 10 can open by exerting pressure on it in the direction of the arrow F1 (see FIG. 1)
  • the housing 7 is extended towards the surface 3 by a cylinder 12 having at its free end 13 an opening 14.
  • This cylinder 12 surrounds the outlet nozzle 8 of the tube 6.
  • a return spring 16 Between this piston 15 and the free end 13 of the cylinder 12 is inserted a return spring 16.
  • the interior of the housing 7 communicates with the cylinder 12 through an opening 19 of larger diameter than that of the tube 6.
  • the housing 7 is connected by a tube 17 to a source of compressed air 18.
  • the introduction of air compressed 18 in the housing 7 can be controlled by a valve 20, for example electromagnetic, whose opening and closing can be triggered by a detector 21.
  • This detector 21 triggers the opening of the valve 20 as soon as an object 4 is located opposite the end 9 of the nozzle 8 of the device 1.
  • This detector 21 controls the closing of the valve 20 after a predetermined time, as a function of various parameters, such as the sliding speed of the piston 15 towards objects 4, the speed of scrolling of objects 4, or the nature of the desired marking (in the form of dots or lines).
  • the detector 21 can be, for example, a probe known per se, comprising a lever capable of successively coming into contact with the objects 4 and associated with an electric switch capable of controlling the opening and closing of the solenoid valve 20.
  • the detector 21 can also be a photoelectric cell sensitive to the presence of objects facing the nozzle 8 and capable of intermittently transmitting electrical signals capable of controlling the opening and closing of the valve 20.
  • the closing of the valve 20 can be triggered by a preset timer according to the above parameters.
  • the control of the opening and closing of the electromagnetic valve 20 can be ensured by pulses successive using any appropriate means according to the frequency of the successive presentation of the objects 4 opposite the nozzle 8 of the marking device 1.
  • valve 20 After the preset opening time of valve 20 has expired, the valve closes. The closing of the valve 20 controls the exhaust of the compressed air 18 and the withdrawal of the nozzle 8 inside the cylinder 12 under the effect of the return spring 16.
  • the distance d between the free end 13 of the cylinder 12 and the object 4 does not need to be adjusted with great precision. It suffices, in fact, that this distance d is less than the possible stroke of the piston 15 to obtain in all cases a contact between the valve 10 and the surface of objects 4, even if they have varying heights or irregular surfaces with roughness or other defects. Furthermore, in the inactive position, the free end 9 of the nozzle 8 is retracted inside the cylinder 12 where it is effectively protected against mechanical shock.
  • the marking device 22 is fixed to the tightening head 24 of a torque wrench 23.
  • the device 22 comprises a sealed housing 25, connected at 26 to a source of compressed air 27.
  • a inside the housing 25 is housed a tube 28 containing a marking substance.
  • the end piece 28a of this tube 28 is screwed into an outlet nozzle 29, the free end 30 of which carries a ball 31 acting as a valve.
  • the housing 25 is fixed in leaktight manner to a cylinder 32 in which is mounted, in a sliding manner, a piston 33 of which the outlet nozzle 29 is integral. Between this piston 33 and the free end 32a of the cylinder 32 is inserted a return spring 34.
  • the torque wrench 23 comprises a handle 35, the end of which carries a finger 36 perpendicular to the handle and of square section, engaged in a recess 37 of complementary section formed in a lateral arm 38 of the clamping head 24.
  • This clamping head 24 has a cylindrical part 39 screwed onto the free end 32a of the cylinder 32 and a conical part 40, the top of which, located at a certain distance from the free end 30 of the nozzle 29, has an orifice 41 having a section adapted to that of the nut to be tightened (not shown).
  • the assembly constituted by the handle 35 and the tightening head 24 is rigid as long as the tightening torque exerted on the nut by biasing the handle 35 does not reach the preset value.
  • the handle 35 can pivot in a manner known per se along the axis XX 'of the finger 36, so that the tightening torque exerted is interrupted.
  • the axis XX 'of the finger 36 is mounted on a support 42 made integral with the lateral arm 38 of the clamping head 24. This support 42 carries a valve 43 which is connected by pipes 44, 45, respectively to the housing 25 and to the compressed air source 27.
  • This valve 43 can be controlled by a lever 46 capable of coming into contact with the handle 35 of the torque wrench 23, when this handle 35 pivots about the axis XX ', that is i.e. when the desired tightening torque is reached.
  • the advantage of the device 22 shown in FIG. 3 lies mainly in the fact that it makes it possible to mark any nut having been tightened by the torque wrench 23 to the prescribed tightening torque.
  • any nut not marked by the marking substance contained in the tube 28 of the device 22 will be deemed not to have been tightened to the value of the expected tightening torque.
  • the device 22 therefore makes it possible to considerably facilitate the control of the tightening of the nuts during the production of parts in large series.
  • FIG. 5 there is shown an automatic marking machine making it possible to carry out a simultaneous marking of several colored dots, for example on the caps of engine casing bearings, for the purposes of manufacturing control, or parts assembly.
  • This machine comprises a frame 50 in the form of a bracket carrying a wheel 51 with ten spokes 52 mounted for rotation along a vertical axis.
  • each spoke carries six markers, in accordance with the invention 53. For clarity, these markers have been shown only on two opposite spokes
  • the wheel 51 with spokes 52 rotates by tenth of a turn, for example by means of a hydraulic control jack, so as to successively present the spokes 52 opposite the successive casings 54 which pass on the horizontal support 55.
  • Each spoke or arm 52 receives a low pneumatic pressure (0.5 to 1 bar) for pressurizing the paint refills of the various markers 53 and the descent of the pistons of the latter on the housing to be marked 54.
  • the pneumatic control and servo-control equipment is advantageously housed in the frame 50.
  • This machine makes it possible to automatically make either six points of the same color by assigning each spoke 52 of the wheel 51 to this color, or six points of different colors, cachun markers 53, of a color being arranged in a different order on each radius 52 of wheel 51.
  • the device according to the invention can also be used to deposit on a surface a pasty substance different from a paint or an ink, such as a grease, an adhesive, a sealant, or a chemical reagent, in order to carry out repetitive operations of continuous lubrication, gluing, chewing and others.
  • a pasty substance different from a paint or an ink such as a grease, an adhesive, a sealant, or a chemical reagent
  • the device according to the invention can be attached to any tool performing a determined function on an object, and comprising means for controlling the supply of pressurized gas into the housing and the sliding of the piston towards the object, when the function of the tool on this object is completed.
  • the interior of the housing 7 or 25 is placed under vacuum, which has the effect of expanding the flexible walls of the tube 5 or 28, and causing the aspiration of the marking substance inside this tube 5 or 28 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Coating Apparatus (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
EP80400889A 1979-07-03 1980-06-18 Dispositif pour déposer automatiquement une substance pâteuse sur une surface et machine automatique s'y rapportant Expired EP0021986B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7917190 1979-07-03
FR7917190A FR2460163A1 (fr) 1979-07-03 1979-07-03 Dispositif pour deposer automatiquement une substance pateuse sur une surface

Publications (2)

Publication Number Publication Date
EP0021986A1 EP0021986A1 (fr) 1981-01-07
EP0021986B1 true EP0021986B1 (fr) 1983-01-12

Family

ID=9227415

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80400889A Expired EP0021986B1 (fr) 1979-07-03 1980-06-18 Dispositif pour déposer automatiquement une substance pâteuse sur une surface et machine automatique s'y rapportant

Country Status (6)

Country Link
US (1) US4301698A (cg-RX-API-DMAC10.html)
EP (1) EP0021986B1 (cg-RX-API-DMAC10.html)
JP (1) JPS6027569B2 (cg-RX-API-DMAC10.html)
CA (1) CA1134609A (cg-RX-API-DMAC10.html)
DE (1) DE3061610D1 (cg-RX-API-DMAC10.html)
FR (1) FR2460163A1 (cg-RX-API-DMAC10.html)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108340695A (zh) * 2018-04-28 2018-07-31 徐秀霞 一种工件打标的装置

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4429658A (en) 1981-08-10 1984-02-07 The Boeing Company Sealant applicator for rivets
CA1219843A (en) * 1982-11-15 1987-03-31 Robert A. Kidder Adhesive dispenser
US4535719A (en) * 1984-04-06 1985-08-20 Nordson Corporation Liquid dispensing gun with substrate separator
US4635827A (en) * 1985-02-06 1987-01-13 Grumman Aerospace Corporation Sealant applicator for rivet machine
DE3511299A1 (de) * 1985-03-28 1986-10-09 kabelmetal electro GmbH, 3000 Hannover Kriechstromfester schrumpfschlauch fuer endenabschluesse
FR2622841B1 (fr) * 1987-11-06 1992-03-06 Intrama Sa Stylo industriel permettant d'utiliser des encres ou des peintures a solvants volatils conditionnees dans des recharges etanches
US5088401A (en) * 1990-11-30 1992-02-18 Kabushiki Kaisha Shinkawa Marking method and apparatus
US5303605A (en) * 1993-02-05 1994-04-19 Automatic Bicycle Co. Automatic transmission for bicycles
FR2740387A1 (fr) * 1995-10-27 1997-04-30 Cloe Technologies Procede et dispositif de depot de gouttes d'encre
US6588962B1 (en) 2002-03-26 2003-07-08 Honda Giken Kogyo Kabushiki Kaisha Gap checking device with automatic paint application

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2533704A (en) * 1949-04-02 1950-12-12 Andrew D Zanetti Liquid applicator for gluing machines
US2834050A (en) * 1954-06-23 1958-05-13 Dymsza Tadeusz Apparatus for the injection of molten thermoplastic material for moulding
US3379167A (en) * 1965-03-30 1968-04-23 Lockheed Aircraft Corp Dispensing device
US3614940A (en) * 1969-04-18 1971-10-26 Carco Inc Marking device with pressurized fluid flow
US3695216A (en) * 1970-03-02 1972-10-03 Carco Inc Marking device
US3693483A (en) * 1971-04-12 1972-09-26 Oakley Butler Palmer Torque power wrench marking device
US3802301A (en) * 1971-05-27 1974-04-09 Carco Inc Marking device for torque applying tool
US3719111A (en) * 1971-05-27 1973-03-06 Carco Inc Marking device for torque applying tool

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108340695A (zh) * 2018-04-28 2018-07-31 徐秀霞 一种工件打标的装置

Also Published As

Publication number Publication date
DE3061610D1 (en) 1983-02-17
EP0021986A1 (fr) 1981-01-07
CA1134609A (en) 1982-11-02
FR2460163A1 (fr) 1981-01-23
JPS5638289A (en) 1981-04-13
JPS6027569B2 (ja) 1985-06-29
FR2460163B1 (cg-RX-API-DMAC10.html) 1982-02-05
US4301698A (en) 1981-11-24

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