US3742903A - Apparatus for punching and coating printing plates - Google Patents

Apparatus for punching and coating printing plates Download PDF

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US3742903A
US3742903A US00156414A US3742903DA US3742903A US 3742903 A US3742903 A US 3742903A US 00156414 A US00156414 A US 00156414A US 3742903D A US3742903D A US 3742903DA US 3742903 A US3742903 A US 3742903A
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conveyor
plate
printing
punching
bed plate
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R Wheaton
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COPLEY PRESS Inc
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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F9/00—Registration or positioning of originals, masks, frames, photographic sheets or textured or patterned surfaces, e.g. automatically
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/16—Coating processes; Apparatus therefor

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  • ABSTRACT Apparatus for punching and coating printing plates such as used in the printing of newspapers and magazines. Unprepared plates are moved individually in steps to a punch position where coded slots or holes are punched at the edges of the plate in precise alignment, after which the plate passes between devices for application of a photo sensitive coating. The punched and coated plates are conveyed between air dryers and deposited in a stack in a receptacle. For simplicity and compactness, the plates are guided in a return path on two levels and a single motor drives all of the plates handling means. The apparatus will handle single or double plates of multiple sizes without the need for adjustment.
  • plates are placed on a conveyor and are moved individually to a punch station, where all of the slots or holes are punched simultaneously. Alignment means and retractable stops hold the plate while being punched. Each plate then passes between coating rolls or brushes which apply a photo sensitive coating to at least one side, the plate then being guided in a return path to a second conveyor below the punch station.
  • the lower conveyor moves the plate between air blast dryers and deposits the plate in a receptacle, all without handling. Both conveyors and the coating rolls are driven continuously by a single motor, the plates being held where necessary by the retractable stops.
  • the return path arrangement with upper and lower processing stations makes the apparatus compact, and the coated plates are afforded good protection. Control can be performed manually, or automatically in sequence, the mechanism being readily adaptable.
  • the apparatus is constructed on a simple open frame, with all parts accessible for servicing.
  • the primary object of this invention is to provide a new and improved apparatus for punching and coating printing plates.
  • FIG. I is a side elevation view of the complete apparatus.
  • FIG. 2 is an enlarged top plan view of the punching and coating stations.
  • FIG. 3 is a view of a typical punched plate.
  • FIG. 4 is a sectional view taken on line 4-4 of FIG. 2.
  • FIG. 5 is an enlarged sectional view taken on line 5-5 of FIG. 4.
  • the apparatus is constructed on a simple open frame 10, the structure of which may vary. As illustrated, the frame includes longitudinal side members 12 joined at opposite ends by cross members 14 in a rigid rectangular structure, which is supported on pairs of end legs 16 and 18, and intermediate support 20 and intermediate leg 22. Horizontal bracing members, such as 24 and 26, are used where necessary.
  • transverse cross bars 28 Secured on top of side members 12 are transverse cross bars 28, which support a flat loading table 30 and a bed plate 32 in end to end coplanar relation.
  • an upper conveyor 34 Extending longitudinally around the bed plate and loading table is an upper conveyor 34, comprising a plurality of thin endless belts 36 in spaced parallel alignment.
  • the belts 36 are supported between pulleys 38 on a shaft 40 and pulleys 41 on a shaft 42.
  • Shaft 40 is journalled in bearings 44 on side members 12 adjacent the outer or entry end of loading table 30.
  • Shaft 42 is similarly journalled in bearings 46 on the side members adjacent the exit end of bed plate 32.
  • the upper surfaces of the loading table and bed plate have longitudinal grooves 48 for the upper reaches of belts 36, as in FIG. 5.
  • a printing plate 50 is normally carried on the belts 36 slightly above the surfaces of the table and bed plate, with minimum contact with its support to reduce friction and avoid scratching.
  • the grooves 48 allow the plate 50 to be pressed down on the supporting surface momentarily while being punched.
  • the upper surface of the loading table and bed plate may have a flat surface without grooves 48.
  • the belts 36 would have a flat rectangular configuration and a thin thickness that would support the printing plate 50 above the upper surface of the bed plate.
  • the printing plate 50 is sufficiently flexible that its edges can be bent down to be punched by punches 6].
  • bed plate 32 Along opposite sides of bed plate 32 are parallel guide rails 52 and 54, with undercut channels 56 and 58, respectively, to receive the printing plate 50 with sliding fit. Vertical and horizontal clearance in the channels is not critical, limitation of side to side alignment being the important factor as controlled by guide pin and guide roller 72.
  • punches 60 Mounted on top of guide rails 52 and 54 are punches 60, which are conventional units actuated by air or fluid pressure or other such means. The number and spacing of the punches and shape of the punch bits 61 will depend on the arrangement of locating pins on the drum or bed to which the printing plate is to be attached.
  • a typical plate 50 shown in FIG. 3, has a circular hole 62 and two elongated notches 64 along one edge, and a slot 65 at the other edge. The plate 50 is shown as a single page plate, but the length of the guide rails and the arrangement of punches is sufficient to accommodate multiple sized plates.
  • a plate is held in position for punching by a pair of stop pins 66, which project upwardly from the bed plate 32 to engage the forward edge of the plate.
  • the stop pins are made retractable by means of actuators 68, operated by air pressure, solenoids or the like.
  • One side edge of the plate bears against an alignment pin 70 fixed in the bed plate and is held by a spring loaded roller 72 on the other side edge.
  • a plate is held in readiness against stop pins 74, which are retracted by actuators 76, and is aligned by a fixed pin 78 at one side for entry between the guide rails 52 and 54.
  • a motor 80 is mounted in frame and, through a gear box 82, drives a shaft 84 journalled between bearings 86 on end legs 16.
  • Conveyor 34 is driven continuously by a belt drive 88 between shafts 84 and 42, the retractable stop pins being used to hold the plates momentarily at their respective stations.
  • a coating unit 90 Fixed to frame 10 at the exit end of the upper conveyor 34 is a coating unit 90, having a coating roller 92 rotatably mounted between bearing brackets 94.
  • the coating roller is partially immersed in a reservoir 96 containing liquid sensitizing material 98, and is driven by a belt drive 100 from shaft 84.
  • a pressure roller 102 Above the coating roller is a pressure roller 102, journalled in bearing bldcks 104, which are vertically adjustable on bearing brackets 94 by means of screws 106.
  • a plate 50 leaving the upper conveyor is drawn between rollers 92 and 102, and the underside is coated with sensitized material. The coated plate is turned by curved guides 108 and drops down to a lower conveyor 110, with the coated surface now uppermost.
  • Lower conveyor 110 is similar in construction to the upper conveyor and comprises a plurality of thin endless belts l12, stretched between pulleys 114 and 116.
  • the pulleys 114 are mounted on a shaft 118 rotating in bearings 120 on the legs 16, and pulleys 116 are on a shaft 122 carried in bearings 124 on legs 22.
  • shaft 84 is a parallel shaft 126 in bearings 128, the two shafts being coupled by gears 130 and 132 to rotate in opposite directions.
  • a speed reducing belt drive 134 from shaft 126 to shaft 118 drives the lower conveyor at about half the speed and in the opposite direction to the upper conveyor.
  • the lower conveyor caries the plates between a pair of air blowers 136 and 138 mounted on legs 20, or other convenient supporting structure.
  • Upper blower 136 has an outlet 140 directed downwardly on the passing plate
  • lower blower 138 has an upwardly directed outlet 142.
  • Heat is not necessary, the moving air at room temperature being sufficient to dry the very thin coating on the plate, and the reduced speed of the lower conveyor ensuring ample drying time.
  • the air from the lower blower opposes the upper blower and the plate effectively floats off the lower conveyor and drops lightly into a receptacle 144, which is mounted on a platform 146 at the exit end of the lower conveyor.
  • the various mechanisms can be controlled manually, but are preferably actuated automatically in sequence.
  • the actual control and timing system will depend on the type of punches and stop pin actuators used, suitable apparatus being well known.
  • some means is necessary to time the stop pin operation. This can be accomplished by a detector 148, such as a photocell, insert in the loading table 30 just ahead of stop pins 74.
  • Detector 148 senses the passing of the plate from the loading table and initiates extension of both sets of stop pins to stop the plates again in their respective positions. The cycle of time ofa plate through the punch position would, of
  • the continuously running conveyors and coating roller avoid the necessity for periodic starting and stopping of the main drive means and makes it feasible to use a single motor for the complete plate handling drive.
  • the open frame structure makes all parts readily accessible and the only regular maintenance required in normal operation is the replenishment of coating liquid in reservoir 96.
  • Apparatus for punching and coating printing plates comprising:
  • a first conveyor for moving printing plates successively from said loading table to said bed plate
  • punch means mounted on said bed plate for punching edges of each printing plate in a predetermined pattern
  • a coating unit mounted on said frame to receive a printing plate from said conveyor, said coating unit having means for applying an image receiving coating to at least one surface of a printing plate;
  • drying means mounted to direct airflow over printing plates carried on said second conveyor
  • each of said conveyors has a plurality of thin endless belts in spaced parallel relation, the belts of said first conveyor supporting a printing plate above said bed plate,
  • said bed plate has grooves into which said endless belts can be depressed.
  • said coating unit has upper and lower rollers positioned to receive printing plates therebetween, and a liquid containing reservoir in which said lower roller is immersed, at least one of said rollers having continuous drive means connected thereto.
  • drying means includes an air blower mounted above said second conveyor.
  • drying means further includes an air blower mounted below said second conveyor.
  • Apparatus for punching and coating printing plates comprising:
  • a first conveyor for moving printing plates successively from said loading table to said bed plate
  • punch means mounted on said bed plate for punching edges of each printing plate in a predetermined pattern
  • a coating unit mounted on said frame to receive a printing plate from said conveyor, said coating unit having means for applying an image receiving coating to at least one surface of a printing plate;
  • drying means mounted to direct airflow over printing plates carried on said second conveyor

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Coating Apparatus (AREA)

Abstract

Apparatus for punching and coating printing plates, such as used in the printing of newspapers and magazines. Unprepared plates are moved individually in steps to a punch position where coded slots or holes are punched at the edges of the plate in precise alignment, after which the plate passes between devices for application of a photo sensitive coating. The punched and coated plates are conveyed between air dryers and deposited in a stack in a receptacle. For simplicity and compactness, the plates are guided in a return path on two levels and a single motor drives all of the plates handling means. The apparatus will handle single or double plates of multiple sizes without the need for adjustment.

Description

United States Patent [1 1 Wheaton I APPARATUS FOR PUNCHING AND COATING PRINTING PLATES [75] Inventor: Robert E. Wheaten, San Diego,
Calif.
[73] Assignee: Copley Press, Inc., La Jolla, Calif. [22] Filed: June 24, 1971 [21] Appl. N0.: 156,414
[451 July 3, 1973 2,695,591 11/1954 Bass, Jr. et a1 118/224 FOREIGN PATENTS OR APPLICATIONS 545,119 5/1942 Great Britain 118/40 Primary Examiner-John P. McIntosh Attorney-Carl R. Brown et a1.
[5 7] ABSTRACT Apparatus for punching and coating printing plates, such as used in the printing of newspapers and magazines. Unprepared plates are moved individually in steps to a punch position where coded slots or holes are punched at the edges of the plate in precise alignment, after which the plate passes between devices for application of a photo sensitive coating. The punched and coated plates are conveyed between air dryers and deposited in a stack in a receptacle. For simplicity and compactness, the plates are guided in a return path on two levels and a single motor drives all of the plates handling means. The apparatus will handle single or double plates of multiple sizes without the need for adjustment.
10 Claims, 5 Drawing Figures PATENTEI] JUL 3 I973 SHEH 3 I06 I94 I2 46 4 32 so 54 so 30 94 Fig. 2
\ H ROBERT Ewv vi E bN M H BY (Q 31 mm 5 -3 ATTORNEYS PATENIEDJULB I975 sum 2 w All so v 5 so .nllllllllll IO Mg :20 24 Fig. 4
Fig. 5
20 ROBERT E. WHEATON BY XL mm ATTORNEYS APPARATUS FOR PUNCHING AND COATING PRINTING PLATES BACKGROUND OF THE INVENTION In preparing printing plates, the photo sensitive coating in which the printed matter is produced is applied prior to exposing the plate to register an image. Also, a set of coded slots or holes must be punched in the plate for alignment and registration on the printing roll, cylinder or bed. The two operations are usually carried out separately and involve considerable handling of the plates, with the possibility of damage to the plates and injury to the handler, since the plates are normally of very thin metal.
SUMMARY OF THE INVENTION In the apparatus described herein, plates are placed on a conveyor and are moved individually to a punch station, where all of the slots or holes are punched simultaneously. Alignment means and retractable stops hold the plate while being punched. Each plate then passes between coating rolls or brushes which apply a photo sensitive coating to at least one side, the plate then being guided in a return path to a second conveyor below the punch station. The lower conveyor moves the plate between air blast dryers and deposits the plate in a receptacle, all without handling. Both conveyors and the coating rolls are driven continuously by a single motor, the plates being held where necessary by the retractable stops. The return path arrangement with upper and lower processing stations makes the apparatus compact, and the coated plates are afforded good protection. Control can be performed manually, or automatically in sequence, the mechanism being readily adaptable. The apparatus is constructed on a simple open frame, with all parts accessible for servicing.
The primary object of this invention, therefore, is to provide a new and improved apparatus for punching and coating printing plates.
It is another object of this invention to provide a new and improved apparatus which punches, coats and drys printing plates in sequence.
. It is another object of this invention to provide a new and improved apparatus which punches and coats printing plates in sequence, without the need for handling between initial placement on the apparatus and delivery into a collection receptacle.
It is another object of this invention to provide a new and improved punching and coating apparatus capable of handling single or double sized plates of multiple sizes.
It is another object of this invention to provide a new and improved punching and coating apparatus which is compact and simple in construction and operation.
Other objects and many advantages of this invention will become apparent upon a reading of the following detailed description and an examination of the drawings wherein like reference numerals designate like parts throughout and in which:
FIG. I is a side elevation view of the complete apparatus.
FIG. 2 is an enlarged top plan view of the punching and coating stations.
FIG. 3 is a view of a typical punched plate.
FIG. 4 is a sectional view taken on line 4-4 of FIG. 2.
FIG. 5 is an enlarged sectional view taken on line 5-5 of FIG. 4.
DESCRIPTION OF THE PREFERRED EMBODIMENT The apparatus is constructed on a simple open frame 10, the structure of which may vary. As illustrated, the frame includes longitudinal side members 12 joined at opposite ends by cross members 14 in a rigid rectangular structure, which is supported on pairs of end legs 16 and 18, and intermediate support 20 and intermediate leg 22. Horizontal bracing members, such as 24 and 26, are used where necessary.
Secured on top of side members 12 are transverse cross bars 28, which support a flat loading table 30 and a bed plate 32 in end to end coplanar relation. Extending longitudinally around the bed plate and loading table is an upper conveyor 34, comprising a plurality of thin endless belts 36 in spaced parallel alignment. The belts 36 are supported between pulleys 38 on a shaft 40 and pulleys 41 on a shaft 42. Shaft 40 is journalled in bearings 44 on side members 12 adjacent the outer or entry end of loading table 30. Shaft 42 is similarly journalled in bearings 46 on the side members adjacent the exit end of bed plate 32. The upper surfaces of the loading table and bed plate have longitudinal grooves 48 for the upper reaches of belts 36, as in FIG. 5. A printing plate 50 is normally carried on the belts 36 slightly above the surfaces of the table and bed plate, with minimum contact with its support to reduce friction and avoid scratching. The grooves 48 allow the plate 50 to be pressed down on the supporting surface momentarily while being punched. It should be recognized that the upper surface of the loading table and bed plate may have a flat surface without grooves 48. The belts 36 would have a flat rectangular configuration and a thin thickness that would support the printing plate 50 above the upper surface of the bed plate. The printing plate 50 is sufficiently flexible that its edges can be bent down to be punched by punches 6].
Along opposite sides of bed plate 32 are parallel guide rails 52 and 54, with undercut channels 56 and 58, respectively, to receive the printing plate 50 with sliding fit. Vertical and horizontal clearance in the channels is not critical, limitation of side to side alignment being the important factor as controlled by guide pin and guide roller 72. Mounted on top of guide rails 52 and 54 are punches 60, which are conventional units actuated by air or fluid pressure or other such means. The number and spacing of the punches and shape of the punch bits 61 will depend on the arrangement of locating pins on the drum or bed to which the printing plate is to be attached. A typical plate 50, shown in FIG. 3, has a circular hole 62 and two elongated notches 64 along one edge, and a slot 65 at the other edge. The plate 50 is shown as a single page plate, but the length of the guide rails and the arrangement of punches is sufficient to accommodate multiple sized plates.
A plate is held in position for punching by a pair of stop pins 66, which project upwardly from the bed plate 32 to engage the forward edge of the plate. The stop pins are made retractable by means of actuators 68, operated by air pressure, solenoids or the like. One side edge of the plate bears against an alignment pin 70 fixed in the bed plate and is held by a spring loaded roller 72 on the other side edge. On the loading table 30, a plate is held in readiness against stop pins 74, which are retracted by actuators 76, and is aligned by a fixed pin 78 at one side for entry between the guide rails 52 and 54.
A motor 80 is mounted in frame and, through a gear box 82, drives a shaft 84 journalled between bearings 86 on end legs 16. Conveyor 34 is driven continuously by a belt drive 88 between shafts 84 and 42, the retractable stop pins being used to hold the plates momentarily at their respective stations.
Fixed to frame 10 at the exit end of the upper conveyor 34 is a coating unit 90, having a coating roller 92 rotatably mounted between bearing brackets 94. The coating roller is partially immersed in a reservoir 96 containing liquid sensitizing material 98, and is driven by a belt drive 100 from shaft 84. Above the coating roller is a pressure roller 102, journalled in bearing bldcks 104, which are vertically adjustable on bearing brackets 94 by means of screws 106. A plate 50 leaving the upper conveyor is drawn between rollers 92 and 102, and the underside is coated with sensitized material. The coated plate is turned by curved guides 108 and drops down to a lower conveyor 110, with the coated surface now uppermost.
Lower conveyor 110 is similar in construction to the upper conveyor and comprises a plurality of thin endless belts l12, stretched between pulleys 114 and 116. The pulleys 114 are mounted on a shaft 118 rotating in bearings 120 on the legs 16, and pulleys 116 are on a shaft 122 carried in bearings 124 on legs 22. Immediately below shaft 84 is a parallel shaft 126 in bearings 128, the two shafts being coupled by gears 130 and 132 to rotate in opposite directions. A speed reducing belt drive 134 from shaft 126 to shaft 118 drives the lower conveyor at about half the speed and in the opposite direction to the upper conveyor.
The lower conveyor caries the plates between a pair of air blowers 136 and 138 mounted on legs 20, or other convenient supporting structure. Upper blower 136 has an outlet 140 directed downwardly on the passing plate, and lower blower 138 has an upwardly directed outlet 142. Heat is not necessary, the moving air at room temperature being sufficient to dry the very thin coating on the plate, and the reduced speed of the lower conveyor ensuring ample drying time. The air from the lower blower opposes the upper blower and the plate effectively floats off the lower conveyor and drops lightly into a receptacle 144, which is mounted on a platform 146 at the exit end of the lower conveyor.
The various mechanisms can be controlled manually, but are preferably actuated automatically in sequence. The actual control and timing system will depend on the type of punches and stop pin actuators used, suitable apparatus being well known. For automatic operation, some means is necessary to time the stop pin operation. This can be accomplished by a detector 148, such as a photocell, insert in the loading table 30 just ahead of stop pins 74. When stop pins 66 and 74 are retracted by the sequencing mechanism, the punched plate moves forward through the coating unit and the next plate advances from the loading table, driven by the continuously moving upper conveyor. Detector 148 senses the passing of the plate from the loading table and initiates extension of both sets of stop pins to stop the plates again in their respective positions. The cycle of time ofa plate through the punch position would, of
course, be sufficient to prevent bunching of coated plates on the slower moving lower conveyor.
By returning the plates and drying and stacking them in the lower portion of the apparatus, the overall size of the structure is greatly reduced. The continuously running conveyors and coating roller avoid the necessity for periodic starting and stopping of the main drive means and makes it feasible to use a single motor for the complete plate handling drive. The open frame structure makes all parts readily accessible and the only regular maintenance required in normal operation is the replenishment of coating liquid in reservoir 96.
Having described my invention, I now claim:
1. Apparatus for punching and coating printing plates, comprising:
a frame;
a substantially flat bed plate and a coplanar loading table on top of said frame;
a first conveyor for moving printing plates successively from said loading table to said bed plate;
punch means mounted on said bed plate for punching edges of each printing plate in a predetermined pattern;
a coating unit mounted on said frame to receive a printing plate from said conveyor, said coating unit having means for applying an image receiving coating to at least one surface of a printing plate;
a second conveyor mounted on said frame;
guide means for directing printing plates from said coating unit to said second conveyor;
drying means mounted to direct airflow over printing plates carried on said second conveyor,
each of said conveyors has a plurality of thin endless belts in spaced parallel relation, the belts of said first conveyor supporting a printing plate above said bed plate,
and said bed plate has grooves into which said endless belts can be depressed.
2. Apparatus according to claim 1, wherein said coating unit has upper and lower rollers positioned to receive printing plates therebetween, and a liquid containing reservoir in which said lower roller is immersed, at least one of said rollers having continuous drive means connected thereto.
3. Apparatus according to claim 1, wherein said first conveyor is continuously driven, said bed plate and said loading table having selectively retractable stop means thereon for holding printing plates momentarily in punching and loading positions, respectively.
4. Apparatus according to claim 3, wherein said drying means includes an air blower mounted above said second conveyor.
5. Apparatus according to claim 4, wherein said drying means further includes an air blower mounted below said second conveyor.
6. Apparatus according to claim 5, wherein said second conveyor is continuously driven at a speed slower than that of the first conveyor.
7. Apparatus for punching and coating printing plates, comprising:
a frame;
a substantially flat bed plate and a coplanar loading table on top of said frame;
a first conveyor for moving printing plates successively from said loading table to said bed plate;
punch means mounted on said bed plate for punching edges of each printing plate in a predetermined pattern;
a coating unit mounted on said frame to receive a printing plate from said conveyor, said coating unit having means for applying an image receiving coating to at least one surface of a printing plate;
a second conveyor mounted on said frame;
guide means for directing printing plates from said coating unit to said second conveyor;
drying means mounted to direct airflow over printing plates carried on said second conveyor,
and guide rails on said bed plate, with channels to receive a printing plate therebetween, said punch

Claims (10)

1. Apparatus for punching and coating printing plates, comprising: a frame; a substantially flat bed plate and a coplanar loading table on top of said frame; a first conveyor for moving printing plates successively from said loading table to said bed plate; punch means mounted on said bed plate for punching edges of each printing plate in a predetermined pattern; a coating unit mounted on said frame to receive a printing plate from said conveyor, said coating unit having means for applying an image receiving coating to at least one surface of a printing plate; a second conveyor mounted on said frame; guide means for directing printing plates from said coating unit to said second conveyor; drying means mounted to direct airflow over printing plates carried on said second conveyor, each of said conveyors has a plurality of thin endless belts in spaced parallel relation, the belts of said first conveyor supporting a printing plate above said bed plate, and said bed plate has grooves into which said endless belts can be depressed.
2. Apparatus according to claim 1, wherein said coating unit has upper and lower rollers positioned to receive printing plates therebetween, and a liquid containing reservoir in which said lower roller is immersed, at least one of said rollers having continuous drive means connected thereto.
3. Apparatus according to claim 1, wherein said first conveyor is continuously driven, said bed plate and said loading table having selectively retractable stop means thereon for holding printing plates momentarily in punching and loading positions, respectively.
4. Apparatus according to claim 3, wherein said drying means includes an air blower mounted above said second conveyor.
5. Apparatus according to claim 4, wherein said drying means further includes an air blower mounted below said second conveyor.
6. Apparatus according to claim 5, wherein said second conveyor is continuously driven at a speed slower than that of the first conveyor.
7. Apparatus for punching and coating printing plates, comprising: a frame; a substantially flat bed plate and a coplanar loading table on top of said frame; a first conveyor for moving printing plates successively from said loading table to said bed plate; punch means mounted on said bed plate for punching edges of each printing plate in a predetermined pattern; a coating unit mounted on said frame to receive a printing plate from said conveyor, said coating unit having means for applying an image receiving coating to at least one surface of a printing plate; a second conveyor mounted on said frame; guide means for directing printing plates from said coating unit to said second conveyor; drying means mounted to direct airflow over printing plates carried on said second conveyor, and guide rails on said bed plate, with channels to receive a printing plate therebetween, said punch means being mounted on said guide rails.
8. Apparatus according to claim 7, and including stop means on said bed plate for holding a printing plate in aligned punching position.
9. Apparatus according to claim 8, wherein said first conveyor is continuously operable, said stop means being selectively retractable to release each printing plate after punching.
10. Apparatus according to claim 9, and including further selectively retractable stop means on said loading table adjacent said bed plate, for holding a printing plate in readiness for advancement to the punching position.
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US4073263A (en) * 1976-05-10 1978-02-14 Melton Baxter Wayne Liquid adhesive coating machine
FR2385447A1 (en) * 1977-03-29 1978-10-27 Polychrome Corp Cladding material application equipment to strip - has horizontal roller partly immersed in material reservoir
US4212263A (en) * 1978-11-15 1980-07-15 Tasope' Limited Printing plate processing machine
US5176755A (en) * 1990-02-14 1993-01-05 Armco Inc. Plastic powder coated metal strip
US5439704A (en) * 1993-10-27 1995-08-08 Hunter Engineering Company, Inc. Combined coil and blank powder coating

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US2253529A (en) * 1939-06-08 1941-08-26 Crown Cork & Seal Co Apparatus for handling sheet material
GB545119A (en) * 1938-07-22 1942-05-12 Willi Besener Improved apparatus for printing and moistening or gumming paper strips
US2324519A (en) * 1940-08-03 1943-07-20 Masonite Corp Drying of distended fibrous products
US2590339A (en) * 1949-05-06 1952-03-25 Minkow Robert Machine for applying glue in stripes to sheet material
US2695591A (en) * 1953-07-13 1954-11-30 Jr Sam T Bass Machine for coating opposite edges of sheet material
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US1469737A (en) * 1921-01-24 1923-10-02 Standard Cap & Seal Corp Impregnating apparatus
US1592431A (en) * 1925-12-28 1926-07-13 Sr William Andrew Uttz Gummed-tape-serving machine
GB545119A (en) * 1938-07-22 1942-05-12 Willi Besener Improved apparatus for printing and moistening or gumming paper strips
US2253529A (en) * 1939-06-08 1941-08-26 Crown Cork & Seal Co Apparatus for handling sheet material
US2324519A (en) * 1940-08-03 1943-07-20 Masonite Corp Drying of distended fibrous products
US2590339A (en) * 1949-05-06 1952-03-25 Minkow Robert Machine for applying glue in stripes to sheet material
US2695591A (en) * 1953-07-13 1954-11-30 Jr Sam T Bass Machine for coating opposite edges of sheet material
US3230925A (en) * 1961-11-28 1966-01-25 Krauss & Reichert Controlled pattern cutting and marking

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4073263A (en) * 1976-05-10 1978-02-14 Melton Baxter Wayne Liquid adhesive coating machine
FR2385447A1 (en) * 1977-03-29 1978-10-27 Polychrome Corp Cladding material application equipment to strip - has horizontal roller partly immersed in material reservoir
US4212263A (en) * 1978-11-15 1980-07-15 Tasope' Limited Printing plate processing machine
US5176755A (en) * 1990-02-14 1993-01-05 Armco Inc. Plastic powder coated metal strip
US5439704A (en) * 1993-10-27 1995-08-08 Hunter Engineering Company, Inc. Combined coil and blank powder coating

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