CN113650403A

CN113650403A - Intaglio printing press

Info

Publication number: CN113650403A
Application number: CN202111125004.9A
Authority: CN
Inventors: 虞立强; 郑军; 黄文红
Original assignee: Hangzhou Best Decorative Material Co ltd
Current assignee: Hangzhou Best Decorative Material Co ltd
Priority date: 2021-09-25
Filing date: 2021-09-25
Publication date: 2021-11-16
Anticipated expiration: 2041-09-25
Also published as: CN113650403B

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

Intaglio printing press

Technical Field

The invention relates to the field of printing equipment, in particular to an intaglio printing machine.

Background

An intaglio printing press is a machine that performs printing using intaglio plates. When the intaglio press prints, the whole plate surface of the plate cylinder is inked, the ink of the blank part on the plate surface is scraped by the doctor blade, the ink of the image-text part is left, then the material is passed, the impression cylinder imprints the back surface of the paper or cloth, the ink of the concave part is directly transferred to the paper surface or the cloth surface, and finally the printed matter is piled up or rewound through the paper collecting part.

When different patterns are impressed, the printing cylinder with the intaglio needs to be replaced, and most of the existing intaglio printing machines can only replace the printing cylinder with the same diameter, so that the impressed picture is limited, and the diversified requirements of products cannot be met.

Disclosure of Invention

In order to facilitate the replacement of printing cylinders of different diameters, the invention provides an intaglio printing press.

The invention provides an intaglio printing press, which adopts the following technical scheme:

a photogravure press comprises a press body, wherein a guide mechanism used for guiding paper or cloth is arranged on the press body, a printing mechanism used for printing is further arranged on the press body, the printing mechanism comprises an inking roller, a printing roller with intaglio engraved on the surface and a pressing roller, the inking roller is movably connected with the press body and is used for being abutted against the printing roller, the press body is rotatably connected with an installation shaft, a fastening structure is arranged on the installation shaft, the printing roller is detachably connected with the installation shaft through the fastening structure, the printing roller and the installation shaft synchronously rotate, the pressing roller is movably connected with the press body and is used for pressing the paper or the cloth on the printing roller, an inking mechanism used for inking the inking of the printing roller and an ink scraping mechanism used for scraping ink on the surface of the printing roller are arranged on the press body, the inking mechanism comprises an ink box connected with the machine body in a sliding mode, the inking roller is connected with the ink box in a rotating mode, the ink scraping mechanism comprises a scraper connected with the machine body in a sliding mode, and the scraper is used for being abutted to the surface of the printing roller.

Through adopting above-mentioned technical scheme, inking cylinder dips in the printing ink of getting in the ink box, inking cylinder can with the printing cylinder butt for printing cylinder dips in full printing ink, and the scraper can strike off the printing ink on printing cylinder surface, and is full of printing ink in the intaglio pattern. The paper or the cloth is guided and transported through the guide mechanism, and is transported to a position between a printing cylinder and a pressing cylinder of the printing mechanism, the pressing cylinder is driven, the pressing cylinder can press the paper or the cloth on the printing cylinder, the printing cylinder is driven to rotate, and patterns are printed on the paper or the cloth. When printing cylinders with different diameters are replaced, the inking cylinder is driven to be 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 roller is detached from the mounting shaft, and after the printing roller is replaced, the printing roller is fixed with the mounting shaft through the fastening structure. The positions of the ink box and the pressing roller are adjusted, so that the ink feeding roller is abutted to the printing roller, and the pressing roller abuts paper or cloth on the printing roller.

Optionally, the printing cylinder cover is established on the installation axle, fastening structure includes and establishes the epaxial second installed part of installation with the first installed part and the cover that slides of the coaxial rigid coupling of installation axle, the second installed part passes through bolt and installation axle fixed connection, first installed part supports the both ends at the printing cylinder with the second installed part respectively tightly.

Through adopting above-mentioned technical scheme, when carrying out the dismantlement of printing cylinder, establish the printing cylinder cover that slides on the installation axle, its one end and first installed part butt, establish the second installed part cover that slides on the installation axle again, make its and printing cylinder's the other end butt, it is fixed with the second installed part through the bolt for the printing cylinder presss from both sides tightly between first installed part and second installed part, and the installation axle of drive this moment rotates, can realize the synchronous rotation of printing cylinder and installation axle.

Optionally, the first installation part is fixedly connected with a first insert rod parallel to the installation shaft, a first rod groove for inserting the first insert rod is formed in the printing roller, a second rod groove communicated with the first rod groove is further formed in the printing roller, the printing roller is connected with a second insert rod in the second rod groove in a sliding manner, the second insert rod is perpendicular to the axis of the installation shaft, the first insert rod is provided with a first inclined surface, the second insert rod is provided with a second inclined surface, the first inclined surface is used for abutting against the second inclined surface, a fixing groove for inserting the second insert rod is formed in the installation shaft, when the first insert rod is completely located in the first rod groove, the second insert rod is located in the fixing groove, the printing roller and the installation shaft do not rotate relatively, and a fastening elastic part is connected between the second insert rod and the printing roller.

Through adopting above-mentioned technical scheme, correspond the position of first inserted bar and first pole groove, overlap the printing cylinder slip cover on installing the axle, first inserted bar can insert first pole groove this moment, and first inclined plane and second inclined plane butt drive second inserted bar insert in the second pole groove, with printing cylinder and installation hub connection, restriction relative rotation between them for printing cylinder can be more stably with installation axle fixed connection. When the printing roller is disassembled, the printing roller is pulled, the first inserting rod generates relative displacement in the first rod groove, so that the first inclined surface is separated from the second inclined surface, the second inserting rod is separated from the second rod groove by the elastic force of the fastening elastic piece, and the printing roller can be disassembled from the mounting shaft.

Optionally, the inking mechanism includes a driving pulley coaxially and fixedly connected to the inking roller and a driven pulley coaxially and fixedly connected to the printing roller, a belt is wound around the driving pulley and the driven pulley, and the belt is wound in a shape of 8 so that the driving pulley and the driven pulley rotate in opposite directions.

Through adopting above-mentioned technical scheme, the drive driving pulley rotates, and through 8 words around the belt drive driven pulley antiport of establishing for inking cylinder and printing cylinder antiport, the inking cylinder that dips in there is printing ink can apply paint with a brush on printing cylinder with printing ink.

Optionally, the inking mechanism further comprises a tension wheel movably connected with the body, and the belt is wound on the tension wheel.

Through adopting above-mentioned technical scheme, because driving pulley passes through the belt with driven pulley and is connected, when adjusting the ink horn position, need dismantle the belt. By arranging the tensioning wheel, the tensioning wheel tensions the belt in the printing process to realize transmission; when the printing roller is replaced, the belt does not need to be detached, and the ink box can be driven to move only by adjusting the position of the tension wheel.

Optionally, the ink scraping mechanism comprises a sliding part connected with the machine body in a sliding manner, the sliding part is connected with a cutter holder, the cutter holder is detachably connected with the scraper through a bolt, and a linkage structure enabling the sliding part to be linked with the ink box is further arranged on the machine body.

Through adopting above-mentioned technical scheme, the scraper can be dismantled with the blade holder and be connected, the change of the scraper of being convenient for. The sliding part is linked with the ink box, and when the printing roller is replaced, the scraper and the ink feeding roller move simultaneously and are separated from the printing roller. After the installation of printing cylinder was accomplished, the scraper can be close to printing cylinder with inking cylinder simultaneously, improves the efficiency of changing printing cylinder. Through setting up linkage structure for scraper and inking cylinder can synchronous motion, further raise the efficiency, and the scraper only drives through same driving source with inking cylinder simultaneously, reduces drive arrangement, and energy saving consumes, has realized energy-concerving and environment-protective theory.

Optionally, the sliding member is connected with the tool apron in a sliding manner, and a propping elastic member is arranged between the sliding member and the tool apron.

Through adopting above-mentioned technical scheme, scraper and printing cylinder butt use a period after, the scraper can produce wearing and tearing, supports tight elastic component through the setting, and after the scraper wearing and tearing, the scraper has the trend of separating with printing cylinder, and the elasticity that supports tight elastic component this moment supports the scraper tightly on printing cylinder for the scraper can continue to strike off the printing ink on printing cylinder surface.

Optionally, linkage structure includes the telescopic of sliding connection with sliding piece fixed connection, sliding connection on the horizontal direction with the fuselage and the lift piece of sliding connection on the vertical direction with the fuselage, the telescopic slides in the vertical direction and wears to establish in the sleeve, the sleeve is provided with the third inclined plane, the lift piece is provided with the fourth inclined plane that is used for with the butt of third inclined plane, the lift piece is connected with the ink horn.

Through adopting above-mentioned technical scheme, when the sliding part slided, drive the loop bar and slide, when the loop bar slided in the sleeve, drive the sleeve and slide on the horizontal direction, third inclined plane and fourth inclined plane butt can drive the piece that goes up and down and remove in vertical direction, drive the china ink case and go up and down.

Optionally, linkage structure includes the lever of being connected with the fuselage rotation, the one end and the lifter swing joint of lever, the other end and ink box swing joint, the ink box slides in the vertical direction with the fuselage and is connected, ink box fixedly connected with bracing piece, the waist type groove that supplies the bracing piece to slide is seted up to the lever.

Through adopting above-mentioned technical scheme, through setting up the lever, set up the axis of rotation of lever in the position of difference and can change the altitude variation of ink tank and the proportion of lifting member altitude variation. So that the inking cylinder and the doctor blade move simultaneously by the same distance.

Optionally, an air cushion is arranged in the machine body, and the air cushion is filled with air and used for carrying out auxiliary support on the ink tank.

By adopting the technical scheme, after the ink box is lifted to the required height. And appropriate amount of gas is filled in the air cushion, so that the air cushion can be used for carrying out auxiliary support on the ink box.

Optionally, a drying mechanism is further arranged in the machine body, the drying mechanism comprises a heating plate, and the heating plate is used for drying the paper or cloth printed with the printing ink.

By adopting the technical scheme, the paper or the fabric is dried in the gravure printing machine after the printing is finished, the ink falling is reduced, and the adverse effect of ink adhesion on the guide mechanism on the printing quality can be reduced.

Optionally, guiding mechanism includes and rotates initiative deflector roll and the passive deflector roll of being connected with the fuselage, paper or cloth are around establishing on initiative deflector roll and passive deflector roll, the initiative deflector roll passes through the drive arrangement drive.

Through adopting above-mentioned technical scheme, initiative deflector roll and passive deflector roll all are used for leading the transportation to paper or cloth, and the initiative deflector roll passes through the drive equipment such as motors drive, and the initiative is transported paper or cloth, and passive deflector roll does not set up the driving source, mainly used leads to paper or cloth.

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

1. the positions of the inking roller and the scraper can be adjusted, so that the intaglio printing press can be provided with printing rollers with different diameters, and the intaglio printing press can meet more printing requirements;

2. by arranging the fastening structure, the printing roller is convenient to mount, fix and dismount, and the efficiency of replacing the printing roller is improved;

3. through setting up linkage structure for scraper and inking cylinder can synchronous motion, further raise the efficiency, and the scraper drives through same driving source with inking cylinder simultaneously, reduces drive arrangement, and energy saving consumes, has realized energy-concerving and environment-protective theory.

Drawings

Fig. 1 is a schematic view of the structure of an intaglio printing press.

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

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

Fig. 4 is an enlarged view of a portion a of fig. 3.

Fig. 5 is a structural cross-sectional view from another perspective of the intaglio printing press.

Fig. 6 is an enlarged view of a structure of a portion B in fig. 5.

Fig. 7 is a partial structural schematic view of the wiping mechanism.

Description of reference numerals: 100. a body; 101. an inlet; 102. an outlet; 110. installing a shaft; 111. fixing grooves; 120. installing a door; 200. a guide mechanism; 210. a driving guide roller; 220. a passive guide roller; 300. a printing mechanism; 310. an inking roller; 320. a printing cylinder; 321. a first rod groove; 322. a second rod groove; 323. fastening an elastic piece; 330. pressing the roller; 400. a fastening structure; 410. a first mounting member; 411. a first plunger; 412. a second plunger; 413. a first inclined plane; 414. a second inclined plane; 420. a second mount; 421. a third plunger; 500. an inking mechanism; 510. an ink tank; 511. a support bar; 512. an air cushion; 520. a driving pulley; 521. a drive motor; 530. a driven pulley; 540. a belt; 550. a tension wheel; 600. a wiping mechanism; 610. a scraper; 620. a sliding member; 621. an oil cylinder; 630. a tool apron; 640. tightly abutting against the elastic piece; 650. an auxiliary plate; 700. a linkage structure; 710. a loop bar; 720. a sleeve; 721. a third inclined plane; 730. a lifting member; 731. a fourth slope; 740. a lever; 741. a waist-shaped groove; 800. and a drying mechanism.

Detailed Description

The present invention is described in further detail below with reference to the accompanying fig. 1-7.

The embodiment of the invention discloses an intaglio printing machine.

Referring to fig. 1, the intaglio printing press includes a body 100 fixedly placed on the ground. The body 100 is provided with an installation opening, and the installation door 120 is hinged to the body 100 at the installation opening. An inlet 101 is formed at one side of the upper portion of the body 100, and an outlet 102 is formed at the other side. The paper or cloth to be printed enters the intaglio printing press from an inlet 101 and is transported out from an outlet 102 after printing is completed. The body 100 is provided with a guide mechanism 200, and the guide mechanism 200 includes a driving guide roller 210 and a driven guide roller 220 rotatably connected to the body 100. The paper or cloth is wound around the active guide roller 210 and the passive guide roller 220. The number of the active guide rollers 210 and the number of the passive guide rollers 220 can be several. By providing the active guide roller 210 and the passive guide roller 220 at different positions of the body 100, paper or cloth can be guided and transported. The driving guide roller 210 is driven by a driving device such as a motor to actively transport the paper or the cloth, and the driven guide roller 220 is not provided with a driving source and is mainly used for guiding the paper or the cloth.

Referring to fig. 2, a printing mechanism 300 is disposed on the body 100, and the printing mechanism 300 includes an inking cylinder 310, a printing cylinder 320, and a pressing cylinder 330, all of which have horizontal axes. The inking cylinder 310 is movably connected to the body 100, and can slide along the vertical direction and rotate around its axis, and the inking cylinder 310 can dip ink. The printing cylinder 320 is engraved with intaglio plates of different patterns on its surface, and the printing cylinder 320 is rotatably connected to the body 100 with its axis of rotation coinciding with its own axis. The inking cylinder 310 can abut against the printing cylinder 320, and ink can be applied to the printing cylinder 320. The pressing roller 330 is movably connected to the body 100, and can slide along the vertical direction and rotate around its own axis, and the driving source for driving the pressing roller 330 can be an air cylinder, an oil cylinder or other driving device. The press cylinder 330 can press the paper or cloth against the printing cylinder 320, the paper or cloth being located between the printing cylinder 320 and the press cylinder 330. The body 100 is further provided with a wiping mechanism 600, the wiping mechanism 600 can wipe off ink on the surface of the printing cylinder 320, and the intaglio of the printing cylinder 320 is filled with ink.

The inking cylinder 310 rotates to apply ink to the printing cylinder 320, after the ink on the surface is scraped off by the ink scraping mechanism 600, the printing cylinder 320 rotates to print the ink in the intaglio on the surface of the paper or cloth, and the pressing cylinder 330 presses the paper or cloth against the printing cylinder 320, thereby improving the printing quality.

When a different pattern is imprinted, the printing cylinder 320 with the intaglio plate needs to be replaced. Referring to fig. 3, the body 100 is rotatably connected to a horizontally disposed mounting shaft 110, a fastening structure 400 is disposed on the mounting shaft 110, and the printing cylinder 320 is detachably connected to the mounting shaft 110 through the fastening structure 400, so as to facilitate replacement of the printing cylinder 320. The position of the printing cylinder 320 corresponds to the position where the door 120 is installed.

Referring to fig. 3 and 4, the fastening structure 400 includes a first mounting member 410 coaxially fixed to the mounting shaft 110, the first mounting member 410 is disposed at an end of the mounting shaft 110 remote from the mounting door 120, and an end surface of the first mounting member 410 can abut against an end of the printing cylinder 320. A plurality of first inserting rods 411 horizontally arranged are fixedly connected to the first mounting member 410, a first inclined surface 413 is arranged at one end of each first inserting rod 411 far away from the first mounting member 410, and the first inclined surface 413 inclines towards the axis of the mounting shaft 110 in the direction far away from the first mounting member 410. The printing roller 320 is provided with first rod grooves 321 corresponding to the first insertion rods 411 one by one, the first insertion rods 411 can be inserted into the corresponding first rod grooves 321, the printing roller 320 is further provided with second rod grooves 322 corresponding to the first rod grooves 321 one by one, the second rod grooves 322 are communicated with the corresponding first rod grooves 321, the printing roller 320 is connected with second insertion rods 412 in the second rod grooves 322 in a sliding manner, and the movement direction of the second insertion rods 412 relative to the printing roller 320 is perpendicular to the axis of the mounting shaft 110. The second inclined surface 414 is disposed at an end of the second inserting rod 412 away from the mounting shaft 110, and the second inclined surface 414 can be engaged and abutted with the first inclined surface 413. Fixing grooves 111 corresponding to the second insertion rods 412 are formed on the circumferential side of the mounting shaft 110, and the second insertion 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 in this embodiment, the fastening elastic member 323 is an elastic rubber block.

Referring to fig. 3 and 4, when the second insertion rod 412 is inserted into the fixing groove 111, the relative rotation between the mounting shaft 110 and the printing cylinder 320 can be restricted, but at this time, the printing cylinder 320 can be slid on the mounting shaft 110. In order to further limit the relative movement between the printing cylinder 320 and the mounting shaft 110, a second mounting member 420 is slidably connected to the mounting shaft 110, the second mounting member 420 can be fixedly connected to the mounting shaft 110 through a bolt, and the second mounting member 420 can abut against one end of the printing cylinder 320, which is far away from the first mounting member 410. A horizontally arranged third insertion rod 421 is fixedly connected to the second mounting member 420, and the third insertion rod 421 can be inserted into the printing cylinder 320.

When the printing cylinder 320 is mounted, the printing cylinder 320 is slidably fitted on the mounting shaft 110, the first rod groove 321 corresponds to the first insertion rod 411, and when the first insertion rod 411 is completely inserted into the first rod groove 321, the printing cylinder 320 abuts against the end surface of the first mounting member 410. In this process, the first inclined surface 413 abuts against the second inclined surface 414, so as to push the second insertion rod 412 to slide in a direction approaching the mounting shaft 110, and the fastening elastic member 323 is pressed, so that the second insertion rod 412 is finally positioned in the fixing groove 111, and the relative rotation between the mounting shaft 110 and the printing cylinder 320 is limited. The second mounting member 420 is slidably fitted on the mounting shaft 110, and when the third insertion rod 421 is inserted into the printing cylinder 320, the second mounting member 420 abuts against the end surface of the printing cylinder 320, and at this time, the second mounting member 420 is fixed on the mounting shaft 110 by a bolt. The print cylinder 320 abuts between the first mount 410 and the second mount 420, limiting relative movement of the mounting shaft 110 in the axial direction of the print cylinder 320.

When the printing cylinder 320 is disassembled, the bolts are first removed, so that the second mounting member 420 can slide on the mounting shaft 110, the second mounting member 420 is removed, the printing cylinder 320 is pulled out, at this time, the second insertion rod 412 is moved in a direction away from the mounting shaft 110 by the elastic force of the fastening elastic member 323, and when the second insertion rod 412 is completely located in the second rod groove 322, the printing cylinder 320 can be disassembled from the mounting 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 containing ink, and a stopper is provided in the body 100 so that the ink tank 510 can move only in the vertical direction. The ink tank 510 is rotatably connected to the inking cylinder 310, and the inking cylinder 310 is capable of dipping ink in the ink tank 510. The inking mechanism 500 further includes a driving pulley 520 coaxially fixed to the inking cylinder 310 and a driven pulley 530 coaxially fixed to the printing cylinder 320, wherein a belt 540 is wound around the driving pulley 520 and the driven pulley 530, and the belt 540 is wound in a shape of a letter 8 so that the driving pulley 520 and the driven pulley 530 rotate in opposite directions. The inking mechanism 500 further includes a tension wheel 550 movably connected to the body 100, and the tension wheel 550 can slide in the horizontal direction and can rotate around its axis. The belt 540 is wound around a tension pulley 550. A limiting groove (not shown) is formed on the inner sidewall of the body 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 air for auxiliary support of the ink tank 510.

The driving motor 521 is fixedly connected to the ink tank 510, the driving pulley 520 is driven to rotate by the driving motor 521, and the belt 540 wound in a shape like a letter 8 drives the driven pulley 530 to rotate in the opposite direction, so that the inking cylinder 310 and the printing cylinder 320 rotate in the opposite direction, and the inking cylinder 310 dipped with ink can apply ink on the printing cylinder 320. When the height of the ink tank 510 is adjusted, the tension roller 550 can move in the horizontal direction so that the inking cylinder 310 is separated from the printing cylinder 320. By providing the tension roller 550, the belt 540 does not need to be detached when adjusting the height of the ink tank 510.

Referring to fig. 5 and 6, the ink scraping mechanism 600 includes an oil cylinder 621 fixedly connected to the body 100, the oil cylinder 621 is disposed in an inclined manner, a piston rod of the oil cylinder 621 is fixedly connected to a sliding member 620, a cutter holder 630 is connected to the sliding member 620, a cross section of the cutter holder 630 is substantially U-shaped, a scraper 610 and an auxiliary plate 650 are fixedly connected to an inside of the U-shaped structure of the cutter holder 630 through a bolt, a tip of the scraper 610 can abut against a surface of the printing cylinder 320, and the auxiliary plate 650 abuts against the scraper 610 in the U-shaped structure of the cutter holder 630.

Referring to fig. 7, a tight elastic member 640 is disposed between the sliding member 620 and the tool holder 630, in this embodiment, the tight elastic member 640 is a spring, one end of which is fixed on a groove wall of the sliding member 620, and the other end of which is fixedly connected with a protrusion on the tool holder 630.

The piston rod of the drive cylinder 621 extends or retracts to enable the doctor blade 610 to abut against or separate from the print cylinder 320. When the doctor blade 610 abuts against the printing cylinder 320, the elastic member 640 is pressed, and when the doctor blade 610 is worn and tends to separate from the printing cylinder 320, the elastic force of the elastic member 640 presses the doctor blade 610 against the printing cylinder 320, so that the doctor blade 610 can continuously scrape off ink on the surface of the printing cylinder 320. When the blade 610 is in the condition of FIG. 7, the blade 610 may be removed from the blade holder 630 for replacement.

Referring to fig. 5, the body 100 is further provided with a linkage structure 700 for linking the slider 620 with the ink tank 510. The linkage structure 700 includes a rod 710, a sleeve 720, and a lifting member 730. The loop bar 710 is fixedly connected with the sliding member 620. The loop bar 710 and the sleeve 720 are coaxially and vertically arranged, and the loop bar 710 is slidably arranged in the sleeve 720. A stopper for restricting the sliding direction of the sleeve 720 is provided in the body 100 so that the sleeve 720 can slide only in the horizontal direction away from or close to the ink tank 510. The lifting member 730 is connected to the body 100 in a sliding manner in a vertical direction, and a limiting groove (not shown) for limiting the sliding direction of the lifting member 730 is further disposed in the body 100. The sleeve 720 is provided with a third slope 721, and the third slope 721 slopes 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 inclined surface 731 which is matched and abutted with the third inclined surface 721. The linkage structure 700 further includes a lever 740 rotatably coupled to the body 100, and the elevation member 730 and the ink tank 510 are respectively located at both sides of a 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 a supporting rod 511, and the lever 740 is provided with a waist-shaped groove 741 for the supporting rod 511 to slide. The other end of the lever 740 is movably connected to the elevating member 730, and the lever 740 is connected to the elevating member 730 in a manner similar to the lever 740 connected to the ink tank 510, so that the lever 740 can be driven to rotate when the elevating member 730 moves up and down.

When the piston rod of the driving cylinder 621 extends or retracts, 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, and at the moment, the supporting rod 511 slides in the waist-shaped groove 741, so that the ink tank 510 is lifted. The inking cylinder 310 can be moved the same distance in different directions from the doctor blade 610 by providing a lever 740.

Referring to fig. 2, a drying mechanism 800 is further provided in the body 100. Drying mechanism 800 includes the hot plate, and it can heat the stoving to the paper or the cloth that the printing was accomplished, reduces printing ink and glues on guiding mechanism 200, influences printing quality.

The implementation principle of the gravure printing machine in the embodiment of the invention is as follows: the paper or cloth is fed 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 applies ink to the printing cylinder 320. The doctor blade 610 scrapes off the excess ink on the surface of the printing cylinder 320, and the pressing cylinder 330 presses the paper or cloth against the printing cylinder 320, thereby printing. When a different pattern is imprinted, the printing cylinder 320 with the intaglio plate needs to be replaced. The piston rod of the driving cylinder 621 is retracted to make the doctor blade 610 and the inking cylinder 310 away from the printing cylinder 320, the mounting door 120 is opened, the bolts are firstly removed to make the second mounting member 420 slide on the mounting shaft 110, the second mounting member 420 is removed, the printing cylinder 320 is replaced, and the printing cylinder 320 and the mounting shaft 110 are fixed through the fastening structure 400. The linkage 700 is adjusted again so that the inking cylinder 310 abuts the print cylinder 320 and the doctor blade 610 abuts the surface of the print cylinder 320.

The above are all preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

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 roller (310), a printing roller (320) with intaglio engraved on the surface and a pressing roller (330), the inking roller (310) is movably connected with a machine body (100), the inking roller (310) is used for abutting against the printing roller (320), the machine body (100) is rotatably connected with an installation shaft (110), a fastening structure (400) is arranged on the installation shaft (110), the printing roller (320) is detachably connected with the installation shaft (110) through the fastening structure (400), the printing roller (320) synchronously rotates with the installation shaft (110), the pressing roller (330) is movably connected with the machine body (100), the pressing roller (330) is used for pressing paper or cloth on the printing roller (320), the machine body (100) is provided with an inking mechanism (500) for inking the printing roller (320) and an ink scraping mechanism (600) for scraping ink on the surface of the printing roller (320), inking mechanism (500) include with fuselage (100) slide the ink tank (510) of being connected, inking cylinder (310) are rotated with ink tank (510) and are connected, wiping mechanism (600) include with fuselage (100) slide scraper (610) of being connected, scraper (610) are used for with the surface butt of printing cylinder (320).

2. The intaglio printing press according to claim 1, wherein: printing cylinder (320) cover is established on installation axle (110), fastening structure (400) include with first installed part (410) and the second installed part (420) of slip cover on installation axle (110) of installation axle (110) coaxial rigid coupling, second installed part (420) are through bolt and installation axle (110) fixed connection, first installed part (410) and second installed part (420) support the both ends at printing cylinder (320) respectively tightly.

3. The intaglio printing press according to claim 2, wherein: the first installation part (410) is fixedly connected with a first inserting rod (411) parallel to an installation shaft (110), a first rod groove (321) for inserting the first inserting rod (411) is formed in the printing roller (320), a second rod groove (322) communicated with the first rod groove (321) is further formed in the printing roller (320), the printing roller (320) is connected with a second inserting rod (412) in the second rod groove (322) in a sliding mode, the second inserting rod (412) is perpendicular to the axis of the installation shaft (110), the first inserting rod (411) is provided with a first inclined surface (413), the second inserting rod (412) is provided with a second inclined surface (414), the first inclined surface (413) is used for being abutted against the second inclined surface (414), a fixing groove (111) for inserting the second inserting rod (412) is formed in the installation shaft (110), and the first inserting rod (411) is completely located in the first rod groove (321), the second insert rod (412) is positioned in the fixing groove (111) so that the printing roller (320) and the mounting shaft (110) do not rotate relatively, and a fastening elastic piece (323) is connected between the second insert rod (412) and the printing roller (320).

4. The intaglio printing press according to claim 1, wherein: 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.

5. The intaglio printing press according to claim 4, wherein: the inking mechanism (500) further comprises a tension wheel (550) movably connected with the machine body (100), and the belt (540) is wound on the tension wheel (550).

6. The intaglio printing press according to claim 1, wherein: scrape black mechanism (600) and include sliding member (620) of being connected with fuselage (100) slide, sliding member (620) are connected with blade holder (630), blade holder (630) can be dismantled with scraper (610) through the bolt and be connected, still be provided with linkage structure (700) that make sliding member (620) and ink tank (510) linkage on fuselage (100).

7. The intaglio printing press according to claim 6, 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).

8. The intaglio printing press according to claim 6, wherein: linkage structure (700) include with sliding member (620) fixed connection's loop bar (710), with fuselage (100) sleeve (720) of sliding connection on the horizontal direction and with fuselage (100) lift piece (730) of sliding connection on the vertical direction, loop bar (710) slide on the vertical direction and wear to establish in sleeve (720), sleeve (720) are provided with third inclined plane (721), lift piece (730) are provided with fourth inclined plane (731) that are used for with third inclined plane (721) butt, lift piece (730) are connected with ink tank (510).

9. The intaglio printing press according to claim 8, wherein: linkage structure (700) include rotate lever (740) of being connected with fuselage (100), the one end and the lifter (730) swing joint of lever (740), the other end and ink tank (510) swing joint, ink tank (510) slide in vertical direction with fuselage (100) and are connected, ink tank (510) fixedly connected with bracing piece (511), waist type groove (741) that supply bracing piece (511) to slide are seted up in lever (740).

10. The intaglio printing press according to claim 9, 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).