CN113650403B - Intaglio printing press - Google Patents

Abstract

The invention relates to the field of printing equipment, in particular to an intaglio printing machine. It includes the fuselage, be provided with guiding mechanism on the fuselage, still be provided with the printing mechanism that is used for the printing on the fuselage, printing mechanism includes inking cylinder, printing cylinder and suppressing roller, inking cylinder and fuselage swing joint, inking cylinder is used for with the printing cylinder butt, the fuselage rotates and connects the installation axle, install the epaxial fastening structure that is provided with, printing cylinder passes through fastening structure and installs the epaxial dismantlement and be connected, printing cylinder rotates with installation axle synchronization, suppressing roller and fuselage swing joint, suppressing roller is used for compressing tightly paper or cloth on printing cylinder, be provided with inking mechanism and wiping mechanism on the fuselage, inking mechanism includes the ink horn of being connected with the fuselage slides, inking cylinder rotates with the ink horn and is connected, wiping mechanism includes the scraper of being connected with the fuselage slides, the scraper is used for the surface butt with printing cylinder. The invention has the effect of facilitating the replacement of printing cylinders with different diameters.

Description

Gravure printing machine

technical field

The invention relates to the field of printing equipment, in particular to a gravure printing machine.

Background technique

A gravure printing machine is a machine that uses gravure plates for printing. When printing on a gravure printing machine, the entire surface of the plate cylinder is inked, and the ink on the blank part of the plate is scraped off with a scraper, leaving the ink on the graphic part, and then the material is passed, and the impression cylinder is pressed on the back of the paper or cloth. Printing, so that the ink in the concave part is directly transferred to the paper or cloth surface, and finally the printed matter is stacked or rewound through the delivery part.

When embossing different patterns, the printing cylinder with gravure needs to be replaced. Most of the existing gravure printing machines can only replace the printing cylinder with the same diameter, which limits the printing format and cannot meet the needs of product diversification.

Contents of the invention

In order to facilitate the replacement of printing cylinders with different diameters, the invention provides a gravure printing machine.

A kind of gravure printing machine provided by the invention adopts the following technical scheme:

A gravure printing machine, comprising a fuselage, a guiding mechanism for guiding paper or cloth is arranged on the fuselage, a printing mechanism for printing is also arranged on the fuselage, and the printing mechanism includes an inking cylinder 1. A printing cylinder and a pressing cylinder with gravure engraved on the surface, the inking cylinder is movably connected with the fuselage, the inking cylinder is used to abut against the printing cylinder, the fuselage is rotatably connected to the installation shaft, and the installation shaft A fastening structure is provided, the printing cylinder is detachably connected with the installation shaft through the fastening structure, the printing cylinder and the installation shaft rotate synchronously, the pressing cylinder is movably connected with the fuselage, and the pressing cylinder is used for paper or The cloth is pressed tightly on the printing cylinder, and the body is provided with an inking mechanism for inking the printing cylinder and a scraping mechanism for scraping off the ink on the surface of the printing cylinder. The connected ink tank, the inking cylinder is rotatably connected with the ink tank, and the ink scraping mechanism includes a scraper that is slidably connected with the fuselage, and the scraper is used to abut against the surface of the printing cylinder.

By adopting the above technical scheme, the inking cylinder dips the ink in the ink tank, and the inking cylinder can contact the printing cylinder, so that the printing cylinder is filled with ink, the scraper can scrape off the ink on the surface of the printing cylinder, and the gravure pattern is filled with ink . The paper or cloth is guided and transported through the guide mechanism, and it is transported between the printing cylinder and the pressing cylinder of the printing mechanism, and the pressing cylinder is driven. The pressing cylinder can press the paper or cloth on the printing cylinder, and drive the printing cylinder to rotate. Printing patterns on paper or fabric. When replacing the printing cylinders with different diameters, the driving inking cylinder is separated from the printing cylinder, the pressing cylinder is separated from the printing cylinder, and the scraper is separated from the printing cylinder. The printing cylinder is removed from the mounting shaft, and after the printing cylinder is replaced, it is fixed with the mounting shaft by a fastening structure. Adjust the positions of the ink tank and the pressing cylinder so that the inking cylinder abuts against the printing cylinder, and the pressing cylinder presses the paper or cloth against the printing cylinder.

Optionally, the printing cylinder is sleeved on the installation shaft, and the fastening structure includes a first installation part fixed coaxially with the installation shaft and a second installation part slidingly sleeved on the installation shaft. The second mounting part is fixedly connected to the mounting shaft through bolts, and the first mounting part and the second mounting part are pressed against two ends of the printing cylinder respectively.

By adopting the above technical solution, when disassembling the printing cylinder, the printing cylinder is slidably sleeved on the mounting shaft, one end of which is in contact with the first mounting part, and then the second mounting part is slidably sleeved on the mounting shaft, Make it abut against the other end of the printing cylinder, fix the second mounting part with bolts, so that the printing cylinder is clamped between the first mounting part and the second mounting part, and drive the mounting shaft to rotate at this time, so that the printing cylinder and the second mounting part can be realized. Synchronous rotation of the mounting shaft.

Optionally, the first mounting part is fixedly connected with a first insertion rod parallel to the installation axis, and the printing cylinder is provided with a first rod groove for inserting the first insertion rod, and the printing cylinder is also provided with a A second rod groove communicating with the first rod groove, the printing cylinder is slidably connected with a second insertion rod in the second rod groove, the second insertion rod is perpendicular to the axis of the installation shaft, and the first insertion rod There is a first slope, the second insertion rod has a second slope, the first slope is used to abut against the second slope, the installation shaft is provided with a fixing groove for the second insertion rod to be inserted into, the first When the first inserting rod is completely located in the first rod groove, the second inserting rod is located in the fixed groove so that the printing cylinder and the installation shaft do not rotate relative to each other, and there is a fastening elastic connection between the second inserting rod and the printing cylinder. pieces.

By adopting the above-mentioned technical solution, the positions of the first insertion rod and the first rod groove are corresponding, and the printing cylinder is slidably sleeved on the installation shaft. At this time, the first insertion rod can be inserted into the first rod groove, and the first inclined surface and The second inclined surface abuts, drives the second inserting rod to insert into the second rod groove, connects the printing cylinder and the installation shaft, and limits the relative rotation of the two, so that the printing cylinder can be fixedly connected with the installation shaft more stably. When the printing cylinder is disassembled, the printing cylinder is pulled, and the first inserting rod produces a relative displacement in the first rod groove, so that the first inclined surface is separated from the second inclined surface, and the second inserting rod receives the elastic force of the fastening elastic part from the second rod groove. The printing cylinder can be disassembled from the mounting shaft.

Optionally, the inking mechanism includes a driving pulley coaxially fixed to the inking cylinder and a driven pulley coaxially fixed to the printing cylinder, the driving pulley and the driven pulley are wound with The belt is wound in a figure-of-eight pattern so that the driving pulley and the driven pulley rotate in opposite directions.

By adopting the above technical scheme, the driving pulley is driven to rotate, and the driven pulley is driven to rotate reversely through the belt wound around the figure 8, so that the inking cylinder and the printing cylinder rotate in reverse, and the inking cylinder dipped in ink can apply the ink Brush on the printing cylinder.

Optionally, the inking mechanism further includes a tension pulley movably connected with the fuselage, and the belt is wound around the tension pulley.

By adopting the above technical scheme, since the driving pulley and the driven pulley are connected by a belt, the belt needs to be disassembled when adjusting the position of the ink tank. By setting the tension wheel, during the printing process, the tension wheel tensions the belt to realize the transmission; when replacing the printing cylinder, there is no need to dismantle the belt, just adjust the position of the tension wheel to drive the ink tank to move .

Optionally, the ink scraping mechanism includes a sliding piece that is slidably connected to the body, the sliding piece is connected with a knife seat, and the knife seat and the scraper are detachably connected by bolts, and the body is also provided with There is an interlocking structure for interlocking the sliding member with the ink tank.

By adopting the above technical solution, the scraper is detachably connected to the knife seat, which facilitates the replacement of the scraper. The sliding part is linked with the ink tank, and when the printing cylinder is replaced, the scraper and the inking cylinder move simultaneously to separate from the printing cylinder. After the printing cylinder is installed, the scraper and the inking cylinder can approach the printing cylinder at the same time, improving the efficiency of replacing the printing cylinder. By setting the linkage structure, the scraper and the inking cylinder can move synchronously, which further improves the efficiency. At the same time, the scraper and the inking cylinder are only driven by the same driving source, reducing driving equipment, saving energy consumption, and realizing the concept of energy saving and environmental protection.

Optionally, the sliding member is slidably connected to the knife seat, and a pressing elastic member is arranged between the sliding member and the knife seat.

By adopting the above technical solution, the scraper and the printing cylinder are in contact. After a period of use, the scraper may be worn. By setting the elastic member, when the scraper is worn, the scraper and the printing cylinder tend to separate. At this time, the elastic The elasticity of the parts presses the scraper against the printing cylinder so that the scraper can continue to scrape off the ink on the surface of the printing cylinder.

Optionally, the linkage structure includes a sleeve rod fixedly connected to the sliding member, a sleeve slidably connected to the fuselage in the horizontal direction, and a lifting member slidably connected to the fuselage in the vertical direction. The sleeve rod slides in the vertical direction and is installed in the sleeve. The sleeve is provided with a third slope, and the lifting member is provided with a fourth slope for abutting against the third slope. The lifting member and the ink tank connect.

By adopting the above technical scheme, when the sliding part slides, it drives the sleeve rod to slide, and when the sleeve rod slides in the sleeve, it drives the sleeve to slide in the horizontal direction, and the third inclined plane contacts the fourth inclined plane. It can drive the lifting member to move in the vertical direction and drive the ink tank to move up and down.

Optionally, the linkage structure includes a lever that is rotatably connected to the fuselage, one end of the lever is movably connected to the lifting member, and the other end is movably connected to the ink tank, and the ink tank and the fuselage slide in the vertical direction The ink tank is fixedly connected with a support rod, and the lever is provided with a waist-shaped groove for the support rod to slide.

By adopting the above technical solution, by setting the lever and setting the rotation axis of the lever at different positions, the ratio of the height change of the ink tank to the height change of the lifting member can be changed. Make the inking cylinder and the scraper move the same distance at the same time.

Optionally, an air cushion is arranged inside the fuselage, and the air cushion is filled with gas and is used for auxiliary support of the ink tank.

By adopting the above technical scheme, after the ink tank is lifted to the required height. Fill the air cushion with an appropriate amount of gas so that the air cushion can support the ink tank.

Optionally, a drying mechanism is also provided in the fuselage, and the drying mechanism includes a heating plate, and the heating plate is used for drying the paper or cloth printed with ink.

By adopting the above technical solution, the paper or fabric is dried in the gravure printing machine after printing, so as to reduce ink shedding, and can reduce ink sticking to the guide mechanism to adversely affect printing quality.

Optionally, the guide mechanism includes a driving guide roller and a passive guide roller rotatably connected to the fuselage, the paper or cloth is wound on the driving guide roller and the passive guide roller, and the driving guide roller is driven by a driving device.

By adopting the above technical scheme, both the active guide roller and the passive guide roller are used to guide and transport the paper or cloth, the active guide roller is driven by a driving device such as a motor to actively transport the paper or cloth, and the passive guide roller does not have a driving source. Mainly used for guiding paper or cloth.

In summary, the present invention includes at least one of the following beneficial technical effects:

1. The position of the inking cylinder and the scraper can be adjusted, so that the gravure printing machine can be installed with printing cylinders of different diameters, so that the gravure printing machine can meet more printing needs;

2. By setting the fastening structure, it is convenient to install, fix and disassemble the printing cylinder, and improve the efficiency of replacing the printing cylinder;

3. By setting the linkage structure, the scraper and the inking cylinder can move synchronously, further improving the efficiency. At the same time, the scraper and the inking cylinder are driven by the same driving source, reducing driving equipment, saving energy consumption, and realizing the concept of energy saving and environmental protection.

Description of drawings

Figure 1 is a schematic diagram of the structure of a gravure printing machine.

Fig. 2 is a structural sectional view of the gravure printing machine.

Fig. 3 is a sectional view of a partial structure of the gravure printing machine, which is mainly used for the connection structure between the printing cylinder and the installation shaft.

Fig. 4 is an enlarged view of the structure of part A in Fig. 3 .

Fig. 5 is a structural sectional view of another viewing angle of the gravure printing machine.

Fig. 6 is an enlarged view of the structure of part B in Fig. 5 .

Fig. 7 is a schematic diagram of a partial structure of the scraping mechanism.

Description of reference signs: 100, fuselage; 101, inlet; 102, outlet; 110, installation shaft; 111, fixed slot; 120, installation door; 200, guide mechanism; 210, active guide roller; 220, passive guide roller; 300, printing mechanism; 310, inking cylinder; 320, printing cylinder; 321, first rod groove; 322, second rod groove; 323, fastening elastic member; 330, pressing cylinder; 400, fastening structure; 410, 411, the first insertion rod; 412, the second insertion rod; 413, the first slope; 414, the second slope; 420, the second installation part; 421, the third insertion rod; 500, the inking mechanism ;510, ink tank; 511, support rod; 512, air cushion; 520, driving pulley; 521, driving motor; 530, driven pulley; 540, belt; , scraper; 620, sliding part; 621, oil cylinder; 630, knife seat; 640, elastic part; 650, auxiliary plate; 700, linkage structure; 710, sleeve rod; 720, sleeve; 721, third inclined plane 730, lifting parts; 731, the fourth inclined plane; 740, lever; 741, waist groove; 800, drying mechanism.

Detailed ways

The present invention will be described in further detail below in conjunction with accompanying drawings 1-7.

The embodiment of the invention discloses a gravure printing machine.

Referring to FIG. 1 , the gravure printing machine includes a body 100 fixedly placed on the ground. The fuselage 100 is provided with an installation opening, and the fuselage 100 is hinged with an installation door 120 at the installation opening. An inlet 101 is opened on one side of the upper part of the fuselage 100, and an outlet 102 is opened on the other side. The paper or cloth to be printed enters the gravure printing machine from the inlet 101, and is shipped out from the outlet 102 after printing is completed. The fuselage 100 is provided with a guide mechanism 200 , and the guide mechanism 200 includes a driving guide roller 210 and a passive guide roller 220 rotatably connected with the fuselage 100 . The paper or cloth is wound on the driving guide roller 210 and the passive guide roller 220 . There can be several driving guide rollers 210 and passive guide rollers 220 . By arranging the active guide roller 210 and the passive guide roller 220 at different positions of the machine body 100 , the paper or cloth can be guided and transported. The active guide roller 210 is driven by a driving device such as a motor to actively transport the paper or cloth, while the passive guide roller 220 is not provided with a driving source and is mainly used to guide the paper or cloth.

Referring to FIG. 2 , the machine body 100 is provided with a printing mechanism 300 . The printing mechanism 300 includes an inking cylinder 310 , a printing cylinder 320 and a pressing cylinder 330 , and the axes of the three are arranged horizontally. The inking cylinder 310 is movably connected with the main body 100 , it can slide along the vertical direction, and can also rotate around its own axis, and the inking cylinder 310 can absorb ink. The surface of the printing cylinder 320 is engraved with intaglio plates of different patterns, and the printing cylinder 320 is rotatably connected with the fuselage 100 , and the rotation axis coincides with its own axis. The inking cylinder 310 can be in contact with the printing cylinder 320 to apply ink to the printing cylinder 320 . The pressing roller 330 is movably connected with the fuselage 100, and it can slide along the vertical direction, and can also rotate around its own axis. The driving source for driving the pressing roller 330 can be an air cylinder, an oil cylinder or other driving equipment. The pressing cylinder 330 can press the paper or cloth against the printing cylinder 320 , and the paper or cloth is located between the printing cylinder 320 and the pressing cylinder 330 . The body 100 is also provided with a scraping mechanism 600, which can scrape off the ink on the surface of the printing cylinder 320, and the gravure of the printing cylinder 320 is filled with ink.

The inking cylinder 310 rotates to apply ink on the printing cylinder 320. After scraping off the surface ink by the scraping mechanism 600, the printing cylinder 320 rotates to print the ink in the gravure on the surface of the paper or cloth, and the pressing cylinder 330 wipes the paper or cloth. Compressed on the printing cylinder 320 to improve printing quality.

When embossing different patterns, the printing cylinder 320 with gravure needs to be replaced. Referring to FIG. 3 , the body 100 is rotatably connected with a horizontally arranged installation shaft 110 , and a fastening structure 400 is arranged on the installation shaft 110 , and the printing cylinder 320 is detachably connected to the installation shaft 110 through the fastening structure 400 to facilitate the replacement of the printing cylinder 320 . The position of the printing cylinder 320 corresponds to the position where the door 120 is installed.

3 and 4, the fastening structure 400 includes a first mounting part 410 fixed coaxially with the installation shaft 110, the first mounting part 410 is arranged at the end of the installation shaft 110 away from the installation door 120, the first mounting part 410 The end surface of can abut against one end of the printing cylinder 320 . The first mounting part 410 is fixedly connected with a plurality of horizontally arranged first insertion rods 411 , the end of the first insertion rod 411 away from the first mounting part 410 is provided with a first slope 413 , and the first slope 413 is far away from the first mounting part 410 The direction is inclined toward the axis of the installation shaft 110. The printing cylinder 320 is provided with a first rod groove 321 corresponding to the first insertion rod 411 one by one, the first insertion rod 411 can be inserted into the corresponding first rod groove 321, and the printing cylinder 320 is also provided with a first rod groove 321 corresponding to the first rod groove 321. The second rod grooves 322 are provided in one-to-one correspondence, and the second rod grooves 322 communicate with the corresponding first rod grooves 321. The printing cylinder 320 is slidably connected with the second insertion rod 412 in the second rod groove 322. The second insertion rod The direction of movement of 412 relative to the printing cylinder 320 is perpendicular to the axis of the mounting shaft 110 . An end of the second insertion rod 412 away from the installation shaft 110 is provided with a second inclined surface 414 , and the second inclined surface 414 can cooperate with the first inclined surface 413 to abut against. The mounting shaft 110 is provided with fixing grooves 111 corresponding to the second inserting rods 412 one-to-one, and the second inserting rods 412 can be inserted into the fixing grooves 111 . A fastening elastic member 323 is connected between the second inserting rod 412 and the printing cylinder 320 , and the fastening elastic member 323 is an elastic rubber block in this embodiment.

Referring to FIG. 3 and FIG. 4 , when the second inserting rod 412 is inserted into the fixing groove 111 , it can limit the relative rotation between the mounting shaft 110 and the printing cylinder 320 , but the printing cylinder 320 can slide on the mounting shaft 110 at this time. In order to further restrict the relative movement between the printing cylinder 320 and the mounting shaft 110, a second mounting part 420 is slidably connected to the mounting shaft 110, and the second mounting part 420 can be fixedly connected to the mounting shaft 110 by bolts, and the second mounting part 420 can resist Close to the end of the printing cylinder 320 away from the first mounting part 410 . A third inserting rod 421 arranged horizontally is fixedly connected to the second mounting member 420 , and the third inserting rod 421 can pass through the printing cylinder 320 .

When installing the printing cylinder 320, the printing cylinder 320 is slidably set on the installation shaft 110, and at the same time, the first rod groove 321 corresponds to the position of the first insertion rod 411, and the first insertion rod 411 is completely inserted into the first rod groove At 321, the printing cylinder 320 abuts against the end surface of the first mounting member 410 . During this process, the first inclined surface 413 abuts against the second inclined surface 414, pushing the second insertion rod 412 to slide in the direction close to the installation shaft 110, and the fastening elastic member 323 is compressed, and finally the second insertion rod 412 is located in the fixing groove 111 , the relative rotation between the mounting shaft 110 and the printing cylinder 320 is limited. Then the second mounting part 420 is slidably set on the mounting shaft 110. When the third insertion rod 421 is inserted into the printing cylinder 320, the second mounting part 420 abuts against the end face of the printing cylinder 320. At this time, the second mounting part 420 is abutted against the end surface of the printing cylinder 320. The member 420 is fixed on the installation shaft 110 . The printing cylinder 320 is tightly pressed between the first mounting part 410 and the second mounting part 420 to limit relative movement of the mounting shaft 110 and the printing cylinder 320 in the axial direction.

When dismounting the printing cylinder 320, first unload the bolts so that the second mounting part 420 can slide on the mounting shaft 110, take off the second mounting part 420, and pull out the printing cylinder 320, at this time the second inserting rod 412 is fastened The elastic force of the elastic member 323 moves away from the installation shaft 110 , and when the second insertion rod 412 is completely located in the second rod slot 322 , the printing cylinder 320 can be detached from the installation shaft 110 .

Referring to FIG. 5 , an inking mechanism 500 is also provided in the body 100 . The inking mechanism 500 includes an ink tank 510 filled with ink, and a limiting block is arranged in the body 100 so that the ink tank 510 can only move in the vertical direction. The ink tank 510 is rotatably connected with the inking cylinder 310 , and the inking cylinder 310 can dip the ink in the ink tank 510 . The inking mechanism 500 also includes a driving pulley 520 coaxially fixed to the inking cylinder 310 and a driven pulley 530 coaxially fixed to the printing cylinder 320. The driving pulley 520 and the driven pulley 530 are wound with The belt 540 is wound in a figure-of-eight shape so that the driving pulley 520 and the driven pulley 530 rotate in opposite directions. The inking mechanism 500 also includes a tension wheel 550 movably connected with the main body 100 , and the tension wheel 550 can either slide in the horizontal direction or rotate around its own axis. The belt 540 is wound around the tension pulley 550 . A limiting groove (not shown in the figure) is provided on the inner wall of the fuselage 100 to limit the sliding direction of the tensioning wheel 550 . An air cushion 512 is disposed below the ink tank 510 , and the air cushion 512 can be filled with gas for auxiliary support of the ink tank 510 .

The ink tank 510 is fixedly connected with a driving motor 521, the driving pulley 520 is driven to rotate by the driving motor 521, and the driven pulley 530 is driven to rotate reversely by the belt 540 wound around the figure 8, so that the inking cylinder 310 and the printing cylinder 320 are reversely rotated. To rotate, the inking cylinder 310 dipped in ink can paint the ink on the printing cylinder 320 . When adjusting the height of the ink tank 510 , the tension wheel 550 can move in the horizontal direction, so that the inking cylinder 310 is separated from the printing cylinder 320 . By setting the tension pulley 550, the belt 540 does not need to be disassembled when adjusting the height of the ink tank 510.

Referring to Fig. 5 and Fig. 6, the scraping mechanism 600 includes an oil cylinder 621 fixedly connected with the body 100, the oil cylinder 621 is arranged obliquely, the piston rod of the oil cylinder 621 is fixedly connected with a sliding member 620, and the sliding member 620 is connected with a knife seat 630 , the cross-section of the knife seat 630 is approximately U-shaped, and the U-shaped structure of the knife seat 630 is fixedly connected with a scraper 610 and an auxiliary plate 650 by bolts. The tip of the scraper 610 can abut against the surface of the printing cylinder 320, and the auxiliary plate 650 will The scraper 610 is pressed against the U-shaped structure of the knife seat 630 .

Referring to Fig. 7 , a pressing elastic member 640 is arranged between the sliding member 620 and the knife seat 630. In this embodiment, the pressing elastic member 640 is a spring, one end of which is fixed on the groove wall of the sliding member 620, and the other end It is fixedly connected with the protrusion on the knife seat 630 .

The piston rod of the driving cylinder 621 is extended or retracted, which can make the scraper 610 contact or separate from the printing cylinder 320 . When the scraper 610 abuts against the printing cylinder 320, the elastic member 640 is pressed. When the scraper 610 is worn and tends to separate from the printing cylinder 320, the elastic force of the elastic member 640 will press the scraper 610 against the printing cylinder 320 , so that the scraper 610 can continue to scrape off the ink on the surface of the printing cylinder 320 . When the scraper 610 is in the state shown in FIG. 7 , the scraper 610 can be detached from the knife holder 630 for replacement.

Referring to FIG. 5 , the machine body 100 is also provided with a linkage structure 700 for linkage between the sliding member 620 and the ink tank 510 . The linkage structure 700 includes a sleeve rod 710 , a sleeve 720 and a lifter 730 . The sleeve rod 710 is fixedly connected with the sliding member 620 . Both the sleeve rod 710 and the sleeve 720 are arranged coaxially and vertically, and the sleeve rod 710 slides through the sleeve 720 . The body 100 is provided with a limit block that limits the sliding direction of the sleeve 720 , so that the sleeve 720 can only slide in a horizontal direction away from or close to the ink tank 510 . The lifting member 730 is slidingly connected with the fuselage 100 in the vertical direction, and the fuselage 100 is also provided with a limit slot (not shown in the figure) for limiting the sliding direction of the lifting member 730 . The sleeve 720 is provided with a third slope 721 that is inclined toward the bottom of the body 100 in a direction close to the ink tank 510 . The lifting member 730 is provided with a fourth slope 731 that cooperates with the third slope 721 . The linkage structure 700 also includes a lever 740 rotatably connected to the body 100 , and the lifting member 730 and the ink tank 510 are respectively located on both sides of the rotation center of the lever 740 . One end of the lever 740 is movably connected with the ink tank 510, the ink tank 510 is fixedly connected with the support rod 511, and the lever 740 is provided with a waist-shaped groove 741 for the support rod 511 to slide. The other end of the lever 740 is movably connected with the lifting member 730, and the connection mode between the lever 740 and the lifting member 730 is similar to that of the lever 740 and the ink tank 510, so that when the lifting member 730 moves up and down, the lever 740 can be driven to rotate.

When the piston rod of the driving cylinder 621 is extended or retracted, it drives the sleeve rod 710 to move, and the sleeve rod 710 slides in the sleeve 720 and drives the sleeve 720 to slide in the horizontal direction, passing through the third inclined plane 721 and the fourth inclined plane. The abutment transmission of 731 makes the lifting member 730 move vertically, so that the lever 740 rotates. At this time, the support rod 511 slides in the waist groove 741 to realize the lifting of the ink tank 510. By setting the lever 740, the inking cylinder 310 and the scraper 610 can be moved by the same distance in different directions.

Referring to FIG. 2 , a drying mechanism 800 is also provided in the body 100 . The drying mechanism 800 includes a heating plate, which can heat and dry the printed paper or cloth, so as to reduce ink sticking to the guide mechanism 200 and affect the printing quality.

The implementation principle of a gravure printing machine in the embodiment of the present invention is: the paper or cloth is sent into the gravure printing machine through the guide mechanism 200, and the inking cylinder 310 and the printing cylinder 320 are driven to rotate, so that the inking cylinder 310 paints the printing cylinder 320 ink. The excess ink on the surface of the printing cylinder 320 is scraped off by the scraper 610 , and the paper or cloth is pressed against the printing cylinder 320 by the pressing cylinder 330 to realize printing. When embossing different patterns, the printing cylinder 320 with gravure needs to be replaced. The piston rod of the driving oil cylinder 621 is retracted, so that the scraper 610 and the inking cylinder 310 are away from the printing cylinder 320, the installation door 120 is opened, and the bolts are first unloaded so that the second installation part 420 can slide on the installation shaft 110, and the second installation part 420 is removed. The second mounting part 420 replaces the printing cylinder 320 and fixes the printing cylinder 320 and the mounting shaft 110 through the fastening structure 400 . Then adjust the linkage structure 700 so that the inking cylinder 310 is in contact with the printing cylinder 320 , and the scraper 610 is pressed against the surface of the printing cylinder 320 .

The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention, so: all equivalent changes made according to the structure, shape and principle of the present invention should be covered by the protection scope of the present invention Inside.

Claims (3)

1. The utility model provides an intaglio printing press, includes fuselage (100), be provided with guide mechanism (200) that are used for leading to paper or cloth on fuselage (100), still be provided with printing mechanism (300) that are used for printing on fuselage (100), its characterized in that: the printing mechanism (300) comprises an inking cylinder (310), a printing cylinder (320) with intaglio engraved surfaces and a pressing cylinder (330), wherein the inking cylinder (310) is movably connected with the machine body (100), the inking cylinder (310) is used for abutting against the printing cylinder (320), the machine body (100) is rotatably connected with a mounting shaft (110), a fastening structure (400) is arranged on the mounting shaft (110), the printing cylinder (320) is detachably connected with the mounting shaft (110) through the fastening structure (400), the printing cylinder (320) and the mounting shaft (110) synchronously rotate, the pressing cylinder (330) is movably connected with the machine body (100), the pressing cylinder (330) is used for pressing paper or cloth on the printing cylinder (320), and the machine body (100) is provided with an inking mechanism (500) for inking the printing cylinder (320) and a scraping mechanism (600) for scraping off ink on the surface of the printing cylinder (320); the inking mechanism (500) comprises an ink tank (510) connected with the machine body (100) in a sliding way, and the inking roller (310) is rotationally connected with the ink tank (510); the ink scraping mechanism (600) comprises a scraper (610) connected with the machine body (100) in a sliding mode, and the scraper (610) is used for abutting against the surface of the printing cylinder (320);

the inking mechanism (500) comprises a driving belt wheel (520) coaxially fixedly connected with the inking roller (310) and a driven belt wheel (530) coaxially fixedly connected with the printing roller (320), a belt (540) is wound on the driving belt wheel (520) and the driven belt wheel (530), and the belt (540) is wound in an 8 shape to enable the driving belt wheel (520) and the driven belt wheel (530) to rotate reversely;

the inking mechanism (500) further comprises a tension wheel (550) movably connected with the machine body (100), the belt (540) is wound on the tension wheel (550), and a limiting groove for limiting the sliding direction of the tension wheel (550) is formed in the inner side wall of the machine body (100);

the ink scraping mechanism (600) comprises a sliding part (620) connected with the machine body (100) in a sliding mode, the sliding part (620) is connected with a cutter holder (630), the cutter holder (630) is detachably connected with the scraper (610) through a bolt, and the machine body (100) is further provided with a linkage structure (700) enabling the sliding part (620) to be linked with the ink tank (510); the ink scraping mechanism (600) further comprises an oil cylinder (621) fixedly connected with the machine body (100), the oil cylinder (621) is obliquely arranged, and a piston rod of the oil cylinder (621) is fixedly connected with the sliding piece (620);

the printing roller (320) is sleeved on the mounting shaft (110), the fastening structure (400) comprises a first mounting piece (410) coaxially and fixedly connected with the mounting shaft (110) and a second mounting piece (420) sleeved on the mounting shaft (110) in a sliding manner, the second mounting piece (420) is fixedly connected with the mounting shaft (110) through a bolt, and the first mounting piece (410) and the second mounting piece (420) are respectively abutted against two ends of the printing roller (320);

the first mounting part (410) is fixedly connected with a first insertion rod (411) parallel to the mounting shaft (110), the printing roller (320) is provided with a first rod groove (321) for the first insertion rod (411) to insert, the printing roller (320) is further provided with a second rod groove (322) communicated with the first rod groove (321), the printing roller (320) is connected with a second insertion rod (412) in the second rod groove (322) in a sliding manner, the second insertion rod (412) is perpendicular to the axis of the mounting shaft (110), the first insertion rod (411) is provided with a first inclined surface (413), the second insertion rod (412) is provided with a second inclined surface (414), the first inclined surface (413) is abutted against the second inclined surface (414), the mounting shaft (110) is provided with a fixing groove (111) for the second insertion rod (412) to insert, and when the first insertion rod (411) is completely located in the first rod groove (321), the second insertion rod (412) is located in the fixing groove (111), so that the mounting shaft (323) and the printing roller (320) and the printing roller (110) are not fastened relatively to the printing roller (320);

the linkage structure (700) comprises a loop bar (710) fixedly connected with the sliding piece (620), a sleeve (720) connected with the machine body (100) in a sliding manner in the horizontal direction, and a lifting piece (730) connected with the machine body (100) in a sliding manner in the vertical direction, the loop bar (710) is arranged in the sleeve (720) in a sliding manner in the vertical direction, the sleeve (720) is provided with a third inclined surface (721), the lifting piece (730) is provided with a fourth inclined surface (731) used for abutting against the third inclined surface (721), and the lifting piece (730) is connected with the ink box (510);

the linkage structure (700) further comprises a lever (740) rotatably connected with the machine body (100), one end of the lever (740) is movably connected with the lifting piece (730), the other end of the lever is movably connected with the ink box (510), the ink box (510) is connected with the machine body (100) in a sliding mode in the vertical direction, a supporting rod (511) is fixedly connected with the ink box (510), and a waist-shaped groove (741) for the supporting rod (511) to slide is formed in the lever (740);

when a piston rod of the oil cylinder (621) is driven to extend or retract, the sleeve rod (710) is driven to move, the sleeve rod (710) slides in the sleeve (720) and drives the sleeve (720) to slide in the horizontal direction, the lifting piece (730) moves in the vertical direction through the abutting transmission of the third inclined surface (721) and the fourth inclined surface (731), the lever (740) rotates, the supporting rod (511) slides in the waist-shaped groove (741), and the ink box (510) is lifted.

2. The intaglio printing press according to claim 1, wherein: the sliding part (620) is connected with the tool apron (630) in a sliding mode, and a tightly-abutting elastic part (640) is arranged between the sliding part (620) and the tool apron (630).

3. The intaglio printing press according to claim 1, wherein: an air cushion (512) is arranged in the machine body (100), and the air cushion (512) is filled with air and used for assisting in supporting the ink tank (510).

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