CN107020796B

CN107020796B - Gravure color press capable of cutting printing paper

Info

Publication number: CN107020796B
Application number: CN201710329079.6A
Authority: CN
Inventors: 谢振寰
Original assignee: Fujian Southeast Art Paper Inc
Current assignee: Fujian Southeast Art Paper Inc
Priority date: 2017-05-11
Filing date: 2017-05-11
Publication date: 2022-12-09
Anticipated expiration: 2037-05-11
Also published as: CN107020796A

Abstract

The invention relates to a gravure color press capable of cutting printing paper, which comprises a frame, a paper feeding mechanism, a printing mechanism, a paper collecting mechanism and a paper cutting mechanism. The paper cutting mechanism comprises a paper cutting roller, a power roller and a rotating device for rotating the paper cutting roller. The rotating device comprises a first worm, a first worm wheel and a rotating rod. First worm wheel is fixed install in the rotary rod, first worm with first worm wheel meshing, first worm rotationally install in the frame, the both ends of rotary rod are equipped with the installation piece respectively, cut a sheet of paper roller rotationally install in between two installation pieces. Two cut-off knives that can control the regulation are equipped with on the paper cutting roller, be equipped with first gear on the paper cutting roller, the power roller is rotationally installed in the frame, be equipped with the second gear on the power roller, first gear and second gear meshing. The paper cutting mechanism can cut the printing paper, so that the printing products with corresponding sizes can be produced according to the requirements of customers.

Description

Gravure color press capable of cutting printing paper

Technical Field

The invention relates to a color press, in particular to a gravure color press capable of cutting printing paper.

Background

The existing gravure color press generally comprises a paper feeding mechanism for feeding paper, a printing mechanism for printing color patterns and a paper discharging mechanism for discharging paper, and has simpler functions. The existing gravure color printing machine can only print and print corresponding pattern colors according to the size of the existing printing paper, however, printed matters with different sizes are required in practical application. Therefore, the existing printing method is to print the printed matters with different sizes by using the printing paper with different sizes. However, in actual production, there may be a case where only large-sized printing paper is available and the small-sized printing paper is not purchased or customized in a timely manner, and when a customer needs a small-sized printed product, there is no way to perform printing work, which results in production stoppage and affects factory production efficiency.

Disclosure of Invention

The invention aims to provide a gravure color press capable of cutting printing paper, which solves the problem that in the prior art, printed matters cannot be cut and adjusted according to the size customized by a customer in actual production.

The invention adopts the following technical scheme: the gravure color printing machine comprises a machine frame, a paper feeding mechanism for feeding paper, a printing mechanism for printing and dyeing the printing paper, and a paper collecting mechanism for rolling the printed and dyed paper, and further comprises a paper cutting mechanism for cutting the printing paper, wherein the paper cutting mechanism is arranged between the paper feeding mechanism and the printing mechanism, the paper cutting mechanism comprises a paper cutting roller, a power roller and a rotating device for rotating the paper cutting roller, the rotating device comprises a first worm, a first worm wheel and a rotating rod, the rotating rod is rotatably arranged on the machine frame, the first worm wheel is fixedly arranged on the rotating rod, the first worm is meshed with the first worm wheel, the first worm is rotatably arranged on the machine frame, mounting blocks are respectively arranged at two ends of the rotating rod, the paper cutting roller is rotatably arranged between the two mounting blocks, two cutting knives which can be adjusted left and right are arranged on the paper cutting roller, a first gear is arranged on the paper cutting roller, the power roller is rotatably arranged on the machine frame, a second gear is arranged on the power roller, and the first gear is meshed with the second gear.

Preferably, the paper cutting mechanism further comprises a paper blowing device for blowing off the cut printing paper, the paper blowing device comprises an air blower and a blowpipe which are installed on the frame, the air blower is fixedly connected with the blowpipe, and the blowpipe is provided with a plurality of blowholes along the length direction.

Preferably, the paper cutting machine is fixedly arranged on a positioning ring through a first bolt, the positioning ring is sleeved outside the paper cutting roller, and the positioning ring is fixed on the paper cutting roller through a second bolt.

Preferably, printing mechanism includes printing cylinder, distributor roller, ink horn, distributor roller, printing cylinder all install in the frame, just distributor roller install in the ink horn, the lower extreme of ink horn is connected with elevating system, elevating system including but install in two first insection poles, two third gears in the frame oscilaltion, rotationally install the second worm wheel in the frame, rotationally install the second worm in the frame, rotationally install the transfer line in the frame, the second worm with the meshing of second worm wheel, second worm wheel fixed connection in on the transfer line, two third gear fixed connection in the left and right sides of transfer line, two first insection pole fixed connection in the left and right sides of ink horn, the third gear with first insection pole passes through the insection meshing.

Preferably, the printing mechanism further comprises a scraping device, and the scraping device comprises a scraper for scraping ink, a front-back moving device capable of moving the scraper back and forth, a vertical moving device capable of moving the scraper up and down, and a left-right moving device capable of moving the scraper left and right.

Preferably, the scraper is fixedly connected with a scraper plate, the back-and-forth movement device comprises two third bolts, a first cross rod and two limiting blocks, the two limiting blocks are respectively and fixedly connected to the left side and the right side of the first cross rod, the scraper plate is arranged above the limiting blocks, the two third bolts are respectively in threaded connection with the scraper plate, the third bolts are arranged on the limiting blocks, the up-and-down movement device comprises two first connecting blocks and two second connecting blocks, the two first connecting blocks are respectively and fixedly connected to the first cross rod through fourth bolts, the lower end of the first connecting block is fixedly connected with a second toothed bar, the second toothed bar extends into the second connecting block, the second connecting block is provided with a third rotating rod, the third rotating rod extends into the second connecting block, a fourth gear is arranged at the tail end of the third rotating rod, the fourth gear is engaged with the second toothed bar through toothed bars, the left-and right movement device comprises a third cross rod which can be arranged on the frame in a left-and right movement manner, a fourth cross rod arranged on the frame in a servo motor, the third cross rod and the fourth cross rod are in a through connection with a servo motor, and a third output shaft is connected with a servo motor.

Preferably, the first cross rod is further fixedly connected with two first cylinders, and telescopic rods of the first cylinders are hinged to the scraper plate.

Preferably, the paper delivery mechanism is further provided with a paper breaking mechanism for cutting off printing paper, the paper breaking mechanism comprises a second cylinder fixedly mounted on the frame, a rotating support connected with the second cylinder and a paper breaking blade connected with the rotating support, the rear end of the rotating support is rotatably connected to a fifth cross rod, the fifth cross rod is fixedly mounted on the frame, the front end of the rotating support is provided with a rotatable rotating shaft, the paper breaking blade is arranged on the rotating shaft, a third cylinder is fixedly mounted on the rotating support, and the third cylinder is hinged to the rotating shaft.

Preferably, the delivery mechanism is including locating the disconnected paper mechanism below is equipped with winding roll and biography paper roll, the disconnected blade fall after with the printing paper between winding roll and the biography paper roll cuts off.

The above description of the structure and method of the present invention shows that the present invention has the following advantages compared to the prior art: firstly, the paper cutting mechanism can cut the printing paper, so that the printing products with corresponding sizes can be produced according to the requirements of customers. Secondly, the paper cutting mechanism is provided with the paper blowing device, so that cut paper can be blown open, and winding on a machine is avoided. Thirdly, the cutter is fixedly arranged on a positioning ring through a first bolt, the positioning ring is sleeved outside the paper cutting roller, and the positioning ring is fixed on the paper cutting roller through a second bolt, so that the position of the cutter is convenient to adjust. Fourthly, the lower end of the ink box is connected with a lifting mechanism, so that the ink box is convenient to lift, the ink box is better matched with the position of the ink transfer roller, and the dye is more effectively transferred. Fifthly, the invention is provided with the ink scraping device, thereby scraping redundant dye. The ink scraping device is provided with a front-back moving device capable of moving the scraper back and forth, a vertical moving device capable of moving the scraper up and down, and a left-right moving device capable of moving the scraper left and right, so that the position of the scraper is adjusted, and the scraper is adjusted to a proper position to scrape ink. Seventhly, the scraper plate can be turned over by the first air cylinder, so that the scraper plate can be separated from the upper part of the ink box when the dye is replaced, and shielding is avoided. The invention is provided with a paper cutting mechanism, so that the printing paper can be automatically cut off after being wound by the winding roller.

Drawings

Fig. 1 is a schematic structural diagram of an intaglio color press according to the present invention, and a part of the structure is not shown in the drawing.

Fig. 2 is a schematic structural view of the paper cutting mechanism of the present invention.

FIG. 3 is a schematic structural diagram of a printing mechanism and a lifting mechanism according to the present invention.

Fig. 4 is a schematic structural view of the ink scraping device of the present invention.

Fig. 5 is a schematic view of a connection structure of the first connecting block, the second rack bar and the fourth gear of the ink scraping device.

FIG. 6 is a schematic structural diagram of the paper breaking mechanism of the present invention.

In the figure, the position of the first and second end faces, 9-machine frame, 10-paper feeding mechanism, 11-printing mechanism, 12-paper collecting mechanism, 13-paper cutting mechanism, 14-paper cutting roller, 15-power roller, 16-rotating device, 17-paper blowing device, 18-first gear, 19-first worm, 20-first worm gear, 21-rotating rod, 22-mounting block, 23-cutting knife, 24-second gear, 25-air blower, 26-air blowing pipe, 27-air blowing hole, 28-first bolt, 29-positioning ring, 30-second bolt, 31-printing roller, 32-ink transfer roller, 33-ink box, 34-lifting mechanism, 35-first toothed bar, 36-third gear, 37-second worm gear, 38-second worm, 39-driving rod 40-ink scraping device, 41-scraper, 42-front-back moving device, 43-up-down moving device, 44-left moving device, 45-third bolt, 46-scraper plate, 47-first cross bar, 48-two limiting blocks, 49-first connecting block, 50-second connecting block, 51-fourth bolt, 52-second threaded rod, 53-third rotating rod, 54-fourth gear, 55-third cross bar, 56-fourth cross bar, 57-servo motor, 58-roller, 59-first cylinder, 60-paper cutting mechanism, 61-second cylinder, 62-rotating bracket, 63-fifth cross bar, 64-rotating shaft, 65-paper cutting blade, 66-third cylinder, 67-winding roller, 68-transfer roller, 70-printing paper.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

Referring to fig. 1 and 2, the gravure color printing machine capable of cutting printing paper comprises a frame 9, a paper feeding mechanism 10 for feeding paper, a printing mechanism 11 for printing and dyeing the printing paper 70, and a paper collecting mechanism 12 for collecting the printed paper, and further comprises a paper cutting mechanism 13 for cutting the printing paper 70, wherein the paper cutting mechanism 13 is arranged between the paper feeding mechanism 10 and the printing mechanism 11, and the paper cutting mechanism 13 comprises a paper cutting roller 14, a power roller 15, and a rotating device 16 for rotating the paper cutting roller. The rotating device 16 comprises a first worm 19, a first worm wheel 20 and a rotating rod 21. The rotating rod 21 is rotatably mounted on the frame 9. The first worm wheel 20 is fixedly installed on the rotating rod 21. The first worm 19 meshes with the first worm wheel 20. The first worm is rotatably mounted on the frame 9. The two ends of the rotating rod 21 are respectively provided with a mounting block 22. The paper cutting roller 14 is rotatably mounted between the two mounting blocks 22. Two cutting knives 23 which can be adjusted left and right are arranged on the paper cutting roller 14. The paper cutting roll 14 is provided with a first gear 18. The power roller 15 is rotatably mounted on the frame 9. And a second gear 24 is arranged on the power roller 15. The first gear 18 and the second gear 24 are in mesh. The first worm 19 rotates to drive the first worm wheel 20 to rotate, the first worm wheel 20 drives the rotating rod 21 to rotate, the rotating rod 21 drives the mounting blocks 22 to rotate, the two mounting blocks 22 drive the paper cutting roller 14 to press downwards, and after the paper cutting roller 14 presses downwards, the first gear 18 is meshed with the second gear 24. The power roller 15 provides a rotating power, and the rotation of the power roller 15 drives the cutter 23 on the paper cutting roller 14 to rotate, so as to cut the printing paper 70.

Referring to fig. 1 and 2, the paper cutting mechanism further includes a paper blowing device 17 for blowing off the cut printing paper 70, the paper blowing device 17 includes an air blower 25 and a blowing pipe 26 mounted on the frame, the air blower 25 is fixedly connected to the blowing pipe 26, and the blowing pipe 26 is provided with a plurality of blowing holes 27 along the length direction.

Referring to fig. 1 and 2, the cutting blade 23 is fixedly mounted on a positioning ring 29 through a first bolt 28, the positioning ring 29 is sleeved outside the paper cutting roller 14, and the positioning ring 29 is fixed on the paper cutting roller 14 through a second bolt 30, so that the position of the cutting blade 23 can be adjusted conveniently. After the cutter 23 is adjusted to the position, the printing paper 70 conveyed by the paper feeding mechanism 10 is cut, and then the blower 25 blows air into the blowpipe 26, and the blowhole 27 of the blowpipe 26 blows the cut shredded paper to the outside.

Referring to fig. 1 and 3, the printing mechanism 11 includes a printing cylinder 31, an ink transfer roller 32, and an ink cartridge 33, wherein the ink transfer roller 32 and the printing cylinder 31 are installed on the frame 9, the ink transfer roller 32 is installed in the ink cartridge 33, and a lifting mechanism 34 is connected to a lower end of the ink cartridge 33. The lifting mechanism 34 includes two first toothed bars 35 installed on the frame 9 in a vertically movable manner, two third gears 36, a second worm wheel 37 rotatably installed on the frame 9, a second worm 38 rotatably installed on the frame 9, and a transmission rod 39 rotatably installed on the frame 9. The second worm 38 meshes with the second worm wheel 37. The second worm wheel 37 is fixedly connected to the transmission rod 39. Two third gears 36 are fixedly connected to the left and right sides of the transmission rod 39. Two first rack bars 35 are fixedly connected to left and right sides of the ink cartridge 33. The third gear 36 is in toothed engagement with the first toothed bar 35. The lower end of the ink cartridge 33 of the present invention is connected to the elevating mechanism 34, thereby facilitating the elevation of the ink cartridge 33, making the ink cartridge 33 better fit the position of the ink transfer roller 32, and thus transferring the dye more effectively. After the second worm 38 rotates, the second worm wheel 37 rotates to drive the transmission rod 39 to rotate, the transmission rod 39 rotates to drive the third gear 36 to rotate, and the third gear 36 rotates to drive the rack bar 35 to move up and down, thereby driving the ink box 33 to move up and down.

Referring to fig. 1 and 4, the printing mechanism further includes a wiping unit 40, and the wiping unit 40 includes a scraper 41 for wiping ink, a forward and backward moving unit 42 for moving the scraper 41 forward and backward, an up and down moving unit 43 for moving the scraper 41 upward and downward, and a left and right moving unit 44 for moving the scraper 41 leftward and rightward. The present invention is provided with a wiping device 40 so that the excess dye can be scraped off. The ink scraping device 40 of the present invention is provided with a forward and backward moving device 42 capable of moving the scraper 41 forward and backward, an upward and downward moving device 43 capable of moving the scraper 41 upward and downward, and a leftward and rightward moving device 44 capable of moving the scraper 41 leftward and rightward, so that the position of the scraper 41 is adjusted to adjust the scraper 41 to a suitable position for scraping ink.

Referring to fig. 1, 4 and 5, the scraper 41 is fixedly connected with a scraper plate 46, and the back-and-forth moving device includes two third bolts 45, a first cross bar 47 and two limiting blocks 48. The two limiting blocks 48 are respectively fixedly connected to the left and right sides of the first cross bar 47. The scraper plate 46 is arranged above the limiting block 48, and the two third bolts 45 are respectively in threaded connection with the scraper plate 46. The third bolt 45 is installed on the limiting block 48. The third bolt 45 rotates forward or backward to move the scraper plate 46 forward or backward along the stopper 48. The up-and-down moving means 43 includes two first connecting blocks 49 and two second connecting blocks 50. The two first connecting blocks 49 are respectively fixedly connected to the first cross bar 47 through fourth bolts 51, and the lower ends of the first connecting blocks 49 are fixedly connected with second gear bars 52. The second toothed bar 52 extends into the second connecting block 50. The second connecting block 50 is provided with a third rotating rod 53. The third rotating rod 53 extends into the second connecting block 50. And a fourth gear 54 is provided at the tail end of the third rotating rod 53. The fourth gear 54 is in toothed engagement with the second toothed bar 52. The third rotating rod 53 rotates to drive the fourth gear 54 to rotate, and the fourth gear 54 drives the second gear rod 52 to move up and down, so as to drive the first connecting block 49 to move up and down, and thus drive the first cross rod 47 to move up and down. The left-right moving device 44 comprises a third cross rod 55 installed on the frame 9 in a left-right moving manner, a fourth cross rod 56 installed on the frame 9 in a left-right moving manner, and a servo motor 57 installed on the frame 9, wherein the third cross rod 55 and the fourth cross rod 56 both penetrate through the two second connecting blocks 50 and are fixedly connected to the second connecting blocks 50, an output shaft of the servo motor 57 is connected with a roller 58, and the roller 58 is in contact with the third cross rod 55. The forward or reverse rotation of roller 58 may cause third cross-bar 55 to move slightly to the left or right.

Referring to fig. 1 and 4, two first cylinders 59 are further fixedly connected to the first cross bar 47, and telescopic rods of the first cylinders 59 are hinged to the scraper plate 46. The first cylinder 59 of the present invention can invert the scraper plate 46 so that the scraper plate 46 can be moved away from above the ink cartridge 33 to avoid shadowing when changing the dye.

Referring to fig. 1 and 6, the delivery mechanism 12 is further provided with a paper cutting mechanism 60 for cutting the printing paper 70. The paper breaking mechanism 60 comprises a second cylinder 61 fixedly arranged on the rack, a rotating bracket 62 connected with the second cylinder 61, and a paper breaking blade 65 connected with the rotating bracket 62. The paper cutting blade 65 is a bent blade having a cross section opened at a certain angle. The rear end of the rotating bracket 62 is rotatably connected to the fifth cross bar 63. The fifth cross bar 63 is fixedly arranged on the frame 9. The front end of the rotating bracket 62 is provided with a rotatable rotating shaft 64, and the paper cutting blade 65 is arranged on the rotating shaft 64. The third cylinder 66 is fixedly mounted on the rotating bracket 62. The third cylinder 66 is hinged to the rotating shaft 64.

Referring to fig. 1 and 6, the delivery mechanism 12 includes a winding roller 67 and a transfer roller 68 provided below the paper cutting mechanism 60, and the paper cutting blade 65 cuts the printing paper 70 between the winding roller 67 and the transfer roller 68 after falling. The present invention is provided with the paper cutting mechanism 60, so that the printing paper 70 can be automatically cut after the printing paper 70 is wound by the winding roller 67. The working principle of the paper breaking mechanism 60 is as follows: the second cylinder 61 pushes the rotating bracket 62 downwards around the fifth cross rod 63, and after the rotating bracket 62 moves downwards, the third cylinder 66 pushes the rotating shaft 64 to rotate, and the rotating shaft 64 pushes the paper cutting blade 65 to rotate, so as to drive the paper cutting blade 65 to cut the printing paper 70.

Referring to fig. 1 and 2, the paper cutting mechanism 13 of the present invention can cut the printing paper 70 so as to produce a corresponding size of printed product according to the customer's request. The paper cutting mechanism 13 of the present invention is provided with a paper blowing device 17 so that cut paper can be blown open to avoid winding on the machine.

The above description is only an embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modifications made by using the design concept should fall within the scope of the present invention, such as: the printing units 11 can be designed in groups to print different dyes.

Claims

1. The gravure color printing machine capable of cutting printing paper comprises a machine frame (9), a paper feeding mechanism (10) for feeding paper, a printing mechanism (11) for printing and dyeing the printing paper (70), and a paper collecting mechanism (12) for collecting the printed paper, and is characterized in that: the gravure color printer further comprises a paper cutting mechanism (13) for cutting the printing paper (70), the paper cutting mechanism (13) is arranged between the paper feeding mechanism (10) and the printing mechanism (11), the paper cutting mechanism (13) comprises a paper cutting roller (14), a power roller (15) and a rotating device (16) for rotating the paper cutting roller, the rotating device (16) comprises a first worm (19), a first worm wheel (20) and a rotating rod (21), the rotating rod (21) is rotatably arranged on the frame (9), the first worm wheel (20) is fixedly arranged on the rotating rod (21), the first worm (19) meshes with the first worm wheel (20), the first worm (19) is rotatably arranged on the frame (9), two ends of the rotating rod (21) are respectively provided with a mounting block (22), the paper cutting roller (14) is rotatably arranged between the two mounting blocks (22), two cutting knives (23) which can be adjusted left and right are arranged on the paper cutting roller (14), the paper cutting roller (14) is provided with a first gear (18), the power roller (15) is rotatably arranged on the frame (9), a second gear (24) is arranged on the power roller (15), and the first gear (18) is meshed with the second gear (24);

the paper cutting mechanism further comprises a paper blowing device (17) used for blowing off the cut printing paper (70), the paper blowing device (17) comprises an air blower (25) and a blowing pipe (26) which are arranged on the rack, the air blower (25) is fixedly connected with the blowing pipe (26), and the blowing pipe (26) is provided with a plurality of blowing holes (27) along the length direction;

the paper cutting mechanism (13) further comprises a paper feeding roller, the power roller (15) is separated from the paper feeding roller, and the blowing pipe (26) is located below the paper feeding roller and the power roller (15).

2. An intaglio color press for cutting printing sheets as defined in claim 1, wherein: the paper cutting machine is characterized in that the cutting knife (23) is fixedly arranged on a positioning ring (29) through a first bolt (28), the positioning ring (29) is sleeved on the outside of the paper cutting roller (14), and the positioning ring (29) is fixed on the paper cutting roller (14) through a second bolt (30).

3. An intaglio color press for cutting printing sheets as defined in claim 1, wherein: printing mechanism (11) are including printing cylinder (31), distributor roller (32), ink horn (33), distributor roller (32), printing cylinder (31) all install in on frame (9), just distributor roller (32) install in ink horn (33), the lower extreme of ink horn is connected with elevating system (34), elevating system (34) including can install two first striation poles (35), two third gears (36) on frame (9) with the oscilaltion, rotationally install second worm wheel (37) on frame (9), rotationally install second worm (38) on frame (9), rotationally install transfer line (39) on frame (9), second worm (38) with second worm wheel (37) meshing, second worm wheel (37) fixed connection in on transfer line (39), two third gear (36) fixed connection in the left and right sides of transfer line (39), two first striation poles (35) fixed connection in the left and right sides of ink horn (33), third gear (36) with first striation pole (35) meshes through striation pole (35).

4. A gravure colour printer which can cut printing paper as claimed in claim 3, wherein: the printing mechanism further comprises a scraping device (40), wherein the scraping device (40) comprises a scraper (41) for scraping ink, a front-and-back moving device (42) capable of moving the scraper (41) back and forth, an up-and-down moving device (43) capable of moving the scraper (41) up and down, and a left-and-right moving device (44) capable of moving the scraper (41) left and right.

5. An intaglio color press for cutting printing sheets as defined in claim 4, wherein: the scraper (41) is fixedly connected with a scraper plate (46), the back-and-forth moving device comprises two third bolts (45), a first cross rod (47) and two limiting blocks (48), the two limiting blocks (48) are respectively and fixedly connected to the left side and the right side of the first cross rod (47), the scraper plate (46) is arranged above the limiting blocks (48), the two third bolts (45) are respectively in threaded connection with the scraper plate (46), the third bolts (45) are arranged on the limiting blocks (48), the up-and-down moving device (43) comprises two first connecting blocks (49) and two second connecting blocks (50), two first connecting blocks (49) are respectively fixedly connected to the first cross rod (47) through fourth bolts (51), the lower end of each first connecting block (49) is fixedly connected with a second threaded rod (52), the second threaded rods (52) extend into the second connecting blocks (50), the second connecting blocks (50) are provided with third rotating rods (53), the third rotating rods (53) extend into the second connecting blocks (50), the tail ends of the third rotating rods (53) are provided with fourth gears (54), the fourth gears (54) are meshed with the second threaded rods (52) through the threads, and the left and right moving device (44) is installed on a third cross rod (55) of the rack (9) in a left and right moving mode and can move left and right ) The connecting device comprises a fourth cross rod (56) installed on the rack (9) in a left-right moving mode and a servo motor (57) installed on the rack (9), wherein the third cross rod (55) and the fourth cross rod (56) are arranged in a mode of penetrating through the two second connecting blocks (50), an output shaft of the servo motor (57) is connected with a roller (58), and the roller (58) is in contact with the third cross rod (55).

6. An intaglio color press for cutting printing sheets as defined in claim 5, wherein: the first cross rod (47) is further fixedly connected with two first air cylinders (59), and telescopic rods of the first air cylinders (59) are hinged to the scraper plate (46).

7. An intaglio color press for cutting printing sheets as defined in claim 1, wherein: the paper delivery mechanism (12) is further provided with a paper breaking mechanism (60) used for cutting off printing paper, the paper breaking mechanism (60) comprises a second air cylinder (61) fixedly arranged on the rack, a rotating support (62) connected with the second air cylinder (61) and a paper breaking blade (65) connected to the rotating support (62), the rear end of the rotating support (62) is rotatably connected to a fifth cross rod (63), the fifth cross rod (63) is fixedly arranged on the rack (9), the front end of the rotating support (62) is provided with a rotatable rotating shaft (64), the paper breaking blade (65) is arranged on the rotating shaft (64), a third air cylinder (66) is fixedly arranged on the rotating support (62), and the third air cylinder (66) is hinged to the rotating shaft (64).

8. An intaglio color press for cutting printing sheets as defined in claim 7, wherein: the paper collecting mechanism (12) comprises a paper winding roller (67) and a paper conveying roller (68) which are arranged below the paper breaking mechanism (60), and the paper breaking blade (65) cuts off printing paper (70) between the paper winding roller (67) and the paper conveying roller (68) after falling.