US3805699A - Machine for screen printing on long tables - Google Patents

Machine for screen printing on long tables Download PDF

Info

Publication number
US3805699A
US3805699A US00093715A US9371570A US3805699A US 3805699 A US3805699 A US 3805699A US 00093715 A US00093715 A US 00093715A US 9371570 A US9371570 A US 9371570A US 3805699 A US3805699 A US 3805699A
Authority
US
United States
Prior art keywords
carriage
pawl
stop
driving
damping
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
US00093715A
Other languages
English (en)
Inventor
S Mallofre
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US3805699A publication Critical patent/US3805699A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/08—Machines
    • B41F15/0831—Machines for printing webs
    • B41F15/0845—Machines for printing webs with flat screens
    • B41F15/0859—Machines for printing webs with flat screens movable on a long printing table

Definitions

  • ABSTRACT Automatic apparatus for screen printing on textiles on a long table.
  • a travelling carriage is pneumatically driven stepwise on rails and guided by guide-wheels cooperating with guide rails.
  • a printing frame having a screen thereon is transported by the carriage.
  • the frame is lowered automatically to apply the screen to the surface, such as a fabric, on which printing is to be effected.
  • a squeegee is operated automatically applied under pressure to the screen and a doctor blade is reciprocably driven to effect inking and printing on the fabric surface.
  • the carriage transports a valve system that sequences intermittent stopping of the carriage and while the carriage is stopped effects automatic lowering of the frame and screen, lowering of the squeegee, the forward and backward movement of the doctor blade, stopping of the blade, and sequential lifting of the squeegee and frame and advancement of the carriage to its next stop position where the above steps are again effected.
  • FIG. 1 Full diagram of the machine, parts of which are shown intersected.
  • FIG. 2 Details of the intersected parts as in FIG. 1, but at larger scale.
  • FIG. 3 Distribution of the accessories to be mounted upon the table.
  • FIG. 4 Distribution on switchboard FIG. 5 Table and machine with air-compressor. Table and machine show the opposite side of that shown in FIG. 1.
  • FIG. 6 Detailed view of impulse claw, stop claw and repeat stop.
  • FIG. 7 Detailed view of mechanism for operating the doctor blade.
  • a carriage 1 has four wheels two of which are designated by the reference (2) and are grooved and guide the carriage 1 upon a cylindric rail 3 fixed at one side of the table.
  • the two plain wheels 4 keep the carriage 1 upon an angle bar 5 opposite and parallel to the rail 3.
  • the carriage is disposed over two claws or pawl, i.e., an impulse claw 6 and a stop claw 7.
  • the stop claw 7 engages the side of one of the repeat stops 8 distributed along the table 9 and retains the carriage 1, whilst the impulse claw 6 leans against the other side of the repeat stop 8 pressing it. Thanks to the anchorage and pressure described, the carriage 1 is releasably blocked and unable to move. 1
  • a general pneumatic circuit of the machine brings the stop claw, or fix-damping pawl 7 in sidelong and rotary movement, and when the anchorage is released, by release of the repeat stop 8, the impulse claw, or drawing impulse pawl 6 provides for sufficient thrust allowing the carriage to continue advancing by its own inertia when the impulse claw 6 discontinues pressing the repeat stop 8.
  • the impulse claw 6 Once the impulse claw 6 is engaged on its back side by the next repeat stop 8, it retracts and reappears then at the other side of that same repeat stop 8 that retracted it and it then applied pressure to it.
  • the shaft 10 of the stop claw 7 advanced and rotated to put the claw 7 into the right position for the next stop.
  • the shaft 10 is connected with a hydraulic shockabsorber by means of which it brakes and damps the carriage 1 which is advanced by its own inertia.
  • the stop claws 7 shaft is grooved in an axial direction and its bearing 12 has coincident grooves so that the shaft 10 may slide through the bearing 12 during the braking phase and when the stop claw 7 bears against the repeat stop 8.
  • Shaft 10 and the bearing 12 rotate to turn the stop claw 7 away or retract it from the repeat stop 8 and subsequently advance into position and then rotate again changing thus once more the stop claws position for its anchoring or stopping the carriage the next repeat stop.
  • a brake consisting of a piston 13 and a cylinder 14 is located opposite to the claws 6,7.
  • the piston rod pressures, when emerging, a forcer lever 15 which, in turn, pressures a stem 16 extreme of which serves as a jaw of a gripper of the rail 5. Blocking of the carriage 1 at the claws 6,7 opposite side and centering of the chase 18 through the stems 16 upper conic end are thus effected.
  • a cam 20 at the shafts free end moves the stop-control valve 21 incorporated in the machines pneumatic system.
  • Said valve 21 transmits compressed air to the cylinder of a piston 19 which operates the impulse claw 6 and to the cylinder 14 of the brake piston 13 as well as to the upper part of a cylinder 22 of a piston 23 which lowers the chase 18.
  • a connecting rod simultaneously drives a disk cam 25 which operates another valve 26 of the general pneumatic system.
  • the valve 26 operated by said disk cam 25 controls a piston or plunger 28 which inclines a form-inking doctor blade 33 linked with an arm 34; the latter also is connected with a slide 38 which slides upon a transversal guide 40 fixed upon the carriage 1.
  • a piston 29 connected with a swinglever 30 and with the doctor blade arm 31 transmits an adjustable downward pressure to the arm 34, whilst the slide 38 is operated by means of a piston 45 of a cylinder 46.
  • the cylinder of the pressure stem 29 and those of the doctor-blade inclining plungers or pistons 27, 28 are located upon the slide 38 which travels, as mentioned, upon a transversal guide 40.
  • the slide 38 is driven by an arm 41 which consists of two pieces connected by an elbow-link: forearm 43 and arm 41. The latter is linked with the upper part of the carriage 1.
  • the forearm 43 is linked with the piston rod 44 of a piston 45 0f the horizontal cylinder 46 which is linkconnected with the machine chassis.
  • the slide-driving arm 41 holds a slipper 47 with two contact plates 48; it slides a short way on said arm 41 and is linked with the forearm 43 by means of a connecting rod 49.
  • the forearm 43 commands the slippers 47 come-and-go or reciprocal motion.
  • the slippers contact plates 48 alternatively pressure, during the slippers travel, the two rollers 51, 52 which connect the valves 53, 54 with the pneumatic system of the machine.
  • the valve 53 next to the forearm 43 serves the following purposes: (a) to incline the doctor blade 33 in a backrun sense; (b) to produce a new downward pressure on the doctor blade arm 34; (c) to cause the backward sliding of same and of the slide 38 through a cylinder 46 linked with the forearm 43.
  • the valve 53 assures the run-back or return of the doctor blade 33 by sending compressed air to the pistons 27 of a cylinder 63 fixed on the slide 38, whilst a new adjusted downward pressure on the doctor blade arm 34 is obtained by the transmission of compressed air to the cylinder of a piston 29 which at first served the same purpose.
  • the slipper 47 operates the valve 54 allowing compressed air to pass to the piston 23 of the cylinder 22 which serves to elevate, lower and fasten the chase 18.
  • the latter desengages and lifts up, it operates via a connecting rod 24 the disk cam 25 which controls another valve 55 of the general pneumatic system.
  • the valve 55 drives the grooved shaft of the stop claw 7 and when the latter separates from the repeat stop 8 it allows the carriage to advance under the effect of the impulse claw 6 which is commanded by the piston 19 of a driving cylinder 58.
  • the carriage 1 is provided with a vertical contact finger 59 long enough to detect and touch the stop repeats 8 and to pass them when it temporally lifts.
  • the contact finger 59 is connected with an eccentric 60 which follows its movements and operates a valve 61.
  • the latter transmits compressed air to the piston of a pneumatichydraulic converter which provides the cylinder 58 of piston 19 with oil pressure.
  • the grooved shaft 10 then moves backward with rotary movement and at same time the valve 61 which operated the shaft 10 before drives back said piston stem 19 of the cylinder 58 of the impulse claw 6, assuring the next stop.
  • the shaft 10 is driven via the pneumatic-hydraulic converter; it rotates under the effect of compressed air and is hydraulically braked.
  • the alternative turn of the doctor blade 33 at the end of the slides 38 runway is of approx. 70.
  • the alternative turning is produced by the swinglever 30 operated by means of the pistons 28, 27 of the cylinders 62,63. The latter are fixed upon the extremes of said swinglever 30 and are supplied air by the valves 26, 53.
  • the carriage has an advance-limiting stop 65 for said elbow 42 which assures an equal running of the slide 38.
  • the link connection between the slide 38 and the forearm 43 is adjustable at will with a screw 67 of the gripper 68 which rides upon a traverse 69 of the slide 38. This allows adjustment to determine the most favourable and convenient position at the right, the left or in the center of that regulation zone.
  • the slide-moving forearm 43 and the doctor blade arm 34 are partly telescopic both elements (66 and 35 respectively allow telescoping). This allows to adjust the forearm s length (which determines the runway length of slide) and to obtain the best adapting of the doctor blade arm 34 to the size of the chase l8.
  • the elbow 42 of the arm 41 shows in its most extended position an obtuse angle and in its most reduced extension a sharp angle.
  • the connecting rod 70 is linked at one end with the elbow 42 of the arm 41 and at its other end with the arm 71 of a hydraulic damper 72 which is fastened, without lateral displacements, upon the carriage 1 and serves for the progressive braking of the forearm 43 at the slides runway end.
  • the carriage 1 is provided with a regulating device which allows to stop it during advance movement at all or at certain pre-selected repeat stops 8.
  • the carriage l After its stepwise advance, the carriage l is returned rapidly and steplessly to its starting point by means of a pneumatic motor and arrested by a damper stop 74.
  • the air-motor 73 does not work on the entire backrun length but only thrusts the carriage 1 until it arrives at a connecting rod 75 fixed on the table for the purpose of operating a valve which commands motors air supply. Thanks to the push received, the carriage 1 then continues its backward run by own inertia until arriving at a stop claw 76 which pressures a helicoidal spring 77 at the carriage side and when that claw engages, the carriage is softly or smoothly arrested.
  • Said tube 83 is connected at one end with the machines air circuit by a quick-fitting union 85 and at the other end with the compressors 82 main conduit by a fitting union in the drum core. 7
  • a flexible tie 87 goes from the carriage l to the advance starting point at the table 9 and from there via a pulley 88 along the table to the neck of the drum 84.
  • the flexible tie 87 provides the tube winding and unwinding by rotating the drum 84 in clock or anti-clock direction respectively.
  • the carriage 1 determines the tubes length by commanding the drum motions via the flexible tie 87.
  • the impulse claw 6 is link-connected with a slipper 94 fixed at the plungers end 92, i.e., at the end ofa prolongation of the piston 19 of the cylinder 58.
  • the impulse claw is lifted or lowered by a counterspring 91.
  • the counterspring becomes inactive when the impulse claw 6 strikes against and and applies pressure to the arrester 95.
  • Therunway slot of the impulse claw 6 is crossed by a small bridge 96.
  • the impulse claw 6 When moving backward, the impulse claw 6 is always obliged to lower and pass under the small bridge 96, even if for special circumstances it would not retract by its own retracting means.
  • the beveled surface 97 of the stop claw s 7 backside represent a safety ramp and during the backrun phase of the carriage the claw. is retracted or deflected at all repeat stops 8, even if it has not separated or retracted from the repeat stop path.
  • Automatic apparatus for screen printing on fabrics and the like comprising, a travelling carriage movable stepwise, carriage-advance means to drive the carriage stepwise comprising, a driving impulse pawl movably mounted for deflection downwardly upon application of downward pressure thereto and upwardly to a raised position, drive means for applying driving impulse pressure to said driving impulse pawl in a direction toward which said carriage is to be advanced, a plurality of from for advancing said carriage stepwise, a fixing damping pawl for engaging the stops sequentially while being advanced by said driving pawl and releasably holding each stop temporarily clamped between it and said driving pawl for stopping advance of said carriage at a stop position, mounting means mounting said fixing-damping pawl including means mounting it for limited travel in a damping stroke from a rest position toward the direction of advancement of said carriage when engaged by each stop and restoring said fixingdamping pawl subsequent to each damping stroke to said rest position, means for moving said fixingdamping pawl out of the path of said stop after stopping each said
  • Automatic apparatus for screen printing on fabrics including a doctor blade transported by said carriage, and means for actuating said doctor blade for inking and printing while said carriage is temporarily stopped.
  • Automatic apparatus for screen printing on fabrics including means to restore said carriage steplessly to a start position after advancement thereof stepwise.
  • Automatic apparatus for screen printing on fabrics and the like including means controlling application of impulses of said driving impulse pawl.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Screen Printers (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Handcart (AREA)
  • Coloring (AREA)
US00093715A 1969-12-01 1970-11-30 Machine for screen printing on long tables Expired - Lifetime US3805699A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES374122A ES374122A1 (es) 1969-12-01 1969-12-01 Perfeccionamientos en la construccion de maquinas automati-cas para el estampado en mesa larga.

Publications (1)

Publication Number Publication Date
US3805699A true US3805699A (en) 1974-04-23

Family

ID=8454448

Family Applications (1)

Application Number Title Priority Date Filing Date
US00093715A Expired - Lifetime US3805699A (en) 1969-12-01 1970-11-30 Machine for screen printing on long tables

Country Status (8)

Country Link
US (1) US3805699A (de)
AT (1) AT336535B (de)
CH (1) CH530865A (de)
DE (1) DE2058523A1 (de)
ES (1) ES374122A1 (de)
FR (1) FR2070202B1 (de)
GB (1) GB1339555A (de)
NL (1) NL7017289A (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3946667A (en) * 1973-04-09 1976-03-30 Salvador Gali Mallofre Screen processing machines
US4111124A (en) * 1977-03-18 1978-09-05 Pascale Frank R Method and apparatus for producing factory-trimmed wall covering
US4240343A (en) * 1976-11-15 1980-12-23 Tecal S.A.R.L. Automatic machine for serigraphic printing
US5445461A (en) * 1993-01-08 1995-08-29 De Roeck; Jozef Detachable carriage drive
US5746125A (en) * 1995-08-31 1998-05-05 Tani Electronics Industry Co., Ltd. Enclosed multi-blade squeegee structure for screen printing
US5806423A (en) * 1996-05-14 1998-09-15 Tani Electronics Industry Co., Ltd. Printing squeegee apparatus
CN107757078A (zh) * 2017-09-22 2018-03-06 邱德强 一种自动走台式平网印花机

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR841364A (fr) * 1938-01-20 1939-05-17 Perfectionnements aux machines à imprimer les tissus et analogues par le moyen de cadres d'impression
US2267596A (en) * 1940-02-20 1941-12-23 Stonybrook Inc Machine for printing textiles
CH368771A (it) * 1959-02-04 1963-04-30 Salati Emilio Carrello per la stampa a mano su tessuti
US3106890A (en) * 1961-01-26 1963-10-15 Alsacienne Constr Meca Frame printing machine
GB946286A (en) * 1961-12-02 1964-01-08 Fototintura S A Screen printing carriage

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR841364A (fr) * 1938-01-20 1939-05-17 Perfectionnements aux machines à imprimer les tissus et analogues par le moyen de cadres d'impression
US2267596A (en) * 1940-02-20 1941-12-23 Stonybrook Inc Machine for printing textiles
CH368771A (it) * 1959-02-04 1963-04-30 Salati Emilio Carrello per la stampa a mano su tessuti
US3106890A (en) * 1961-01-26 1963-10-15 Alsacienne Constr Meca Frame printing machine
GB946286A (en) * 1961-12-02 1964-01-08 Fototintura S A Screen printing carriage

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3946667A (en) * 1973-04-09 1976-03-30 Salvador Gali Mallofre Screen processing machines
US4240343A (en) * 1976-11-15 1980-12-23 Tecal S.A.R.L. Automatic machine for serigraphic printing
US4111124A (en) * 1977-03-18 1978-09-05 Pascale Frank R Method and apparatus for producing factory-trimmed wall covering
US5445461A (en) * 1993-01-08 1995-08-29 De Roeck; Jozef Detachable carriage drive
US5746125A (en) * 1995-08-31 1998-05-05 Tani Electronics Industry Co., Ltd. Enclosed multi-blade squeegee structure for screen printing
US5806423A (en) * 1996-05-14 1998-09-15 Tani Electronics Industry Co., Ltd. Printing squeegee apparatus
CN107757078A (zh) * 2017-09-22 2018-03-06 邱德强 一种自动走台式平网印花机
CN107757078B (zh) * 2017-09-22 2019-10-22 邱德强 一种自动走台式平网印花机

Also Published As

Publication number Publication date
FR2070202A1 (de) 1971-09-10
AT336535B (de) 1977-05-10
GB1339555A (en) 1973-12-05
ATA1065970A (de) 1976-09-15
ES374122A1 (es) 1971-12-16
CH530865A (fr) 1972-11-30
NL7017289A (de) 1971-06-03
DE2058523A1 (de) 1971-09-30
FR2070202B1 (de) 1977-01-21

Similar Documents

Publication Publication Date Title
US3805699A (en) Machine for screen printing on long tables
JPS6113940B2 (de)
GB970210A (en) Stacking device for bricks or the like
US5440985A (en) Delivery system for printing plate
US2355930A (en) Stencil printing mechanism
US3949864A (en) Fabric printing machine
US2591005A (en) Machine for driving rail fastening screws in railroad ties
US3106890A (en) Frame printing machine
US3405649A (en) Spike driver
US3741458A (en) Hydraulic controller for strip material feeder
US3120195A (en) Railway track spiking machine
US2948235A (en) Car shifting apparatus having combined car-advancing and car-retarding actions
US2630909A (en) Bar stock feeding mechanism
US3127848A (en) Mobile track tamping machine
CN110153235A (zh) 用于张力矫直机的机内托辊装置
CN202263851U (zh) 铝型材气液增力组角机
US2751842A (en) Screen stencil-printing machines
US2924450A (en) Fold-anchoring means for cloth spreading machines
CN208529252U (zh) 一种全自动冲孔机
CN216037545U (zh) 一种膜下吸附载板行程限位机构
US3572636A (en) Device for automatic control of climbing jack movements
US3620380A (en) Transfer device
US3034631A (en) Coated sheet inserter
EP0451119A2 (de) Apparat zum Umlegen, Spannen und Nageln der Ränder eines Schuhoberteils auf eine Brandsohle, insbesondere für Maschinen zur Montage von Schuhteilen
US2233437A (en) Straightening machine