CN219988776U - Printing device capable of efficiently replacing ink box - Google Patents

Abstract

The utility model discloses a printing device for efficiently replacing an ink box, which comprises two support frames, wherein a printing component for printing a plastic film is arranged between the two support frames, a support plate is connected between the two support frames in a sliding manner, and the two support frames are provided with a driving mechanism for driving the support plate to move; the upper end of the supporting plate is provided with an ink box, the lower end of the ink box is fixedly provided with a clamping plate, the supporting plate is provided with clamping grooves matched with the clamping plate, the two ends of the supporting frame along the width direction are fixedly provided with transverse plates, and the transverse plates are provided with a plurality of groups of limiting parts for limiting the ink box along the length direction. The utility model is convenient for realizing the cleaning and replacing effects of the ink box.

Description

Printing device capable of efficiently replacing ink box

Technical Field

The utility model relates to the field of printing equipment, in particular to a printing device capable of efficiently replacing an ink box.

Background

Intaglio printing presses are machines that use intaglio plates for printing, the graphic part of the plate being depressed and the blank being on the same plane as the outer circle of the plate cylinder. When the intaglio printing press prints, one side of the plate cylinder is immersed in the ink box, so that the whole surface of the plate cylinder is inked, the ink in the blank part on the surface is scraped by a doctor blade, the ink in the image-text part is left, and then the plastic film is passed through the impression cylinder, so that the plastic film is imprinted by the impression cylinder.

To the above-mentioned related art, when the ink in the ink cartridge of the printing apparatus needs to be replaced, the ink cartridge needs to be cleaned, but most of printing apparatuses need to use a large number of tools to replace the ink cartridge, and the disassembly process is complex, so that the disassembly and replacement of the ink cartridge are inconvenient.

Disclosure of Invention

In order to facilitate the disassembly and replacement of the ink cartridge, the utility model provides a printing device capable of efficiently replacing the ink cartridge.

The utility model provides a printing device for efficiently replacing an ink box, which adopts the following technical scheme:

the printing device for efficiently replacing the ink box comprises two support frames, wherein a printing assembly for printing a plastic film is arranged between the two support frames, a support plate is connected between the two support frames in a sliding manner, and the two support frames are respectively provided with a driving mechanism for driving the support plate to move; the upper end of the supporting plate is provided with an ink box, the lower end of the ink box is fixedly provided with a clamping plate, the supporting plate is provided with clamping grooves matched with the clamping plate, the two ends of the supporting frame along the width direction are fixedly provided with transverse plates, and the transverse plates are provided with a plurality of groups of limiting parts for limiting the ink box along the length direction.

Through adopting above-mentioned technical scheme, print the plastic film through printing subassembly, when needs change the printing ink box, actuating mechanism drives the support frame and moves to the direction that deviates from printing subassembly, the support frame drives the synchronous downmovement of printing ink box, make printing ink box and locating part separation, actuating mechanism continuously drives printing ink box through the backup pad and downmoves, make printing ink box and printing subassembly separation completely, the staff pulls printing ink box to the direction that deviates from the backup pad, make cardboard and draw-in groove separation, be convenient for realize clearing up the printing ink box and change the effect.

Optionally, the locating part includes limiting plate, gag lever post, limiting clamp plate, spacing spring and two connecting plates, two connecting plates all with limiting plate fixed connection, the one end that the connecting plate deviates from the limiting plate and diaphragm fixed connection, the limiting groove with ink horn looks adaptation is seted up to the limiting plate, limiting clamp plate passes through limiting groove and limiting plate sliding connection, the gag lever post sets firmly in limiting clamp plate's upper end, the gag lever post wears to establish the limiting plate and with limiting plate sliding connection, the spacing spring housing is located on the gag lever post, two link of spacing spring respectively with limiting plate and limiting clamp plate fixed connection.

Through adopting above-mentioned technical scheme, when printing the subassembly to the plastic film, actuating mechanism supports the ink cartridge through the backup pad, makes ink cartridge upper end be located the spacing inslot, and the ink cartridge promotes spacing splint, makes spacing splint and spacing board cooperation extrusion spacing spring, is favorable to realizing carrying out spacing effect to the ink cartridge; when the ink box needs to be cleaned, the driving mechanism drives the supporting plate to move downwards, the limiting spring rebounds to push the limiting clamping plate to move downwards, the limiting clamping plate pushes the ink box, the ink box is separated from the limiting groove, and the ink box can be conveniently disassembled.

Optionally, actuating mechanism includes first motor, first lead screw and first slide bar, and the standing groove has been seted up to the carriage, and first motor and support frame fixed connection just are located the standing groove, and the output shaft of first motor wears to establish the support frame and with first lead screw fixed connection, and the backup pad is worn to establish by first lead screw and with backup pad threaded connection, first slide bar and support frame fixed connection and with first lead screw parallel arrangement, the backup pad is worn to establish by first slide bar and with backup pad sliding connection.

By adopting the technical scheme, the output shaft of the first motor drives the first screw rod to rotate, and the first screw rod drives the supporting plate to move along the height direction, so that the effect of driving the supporting plate to move is realized conveniently; the first slide bar can limit the supporting plate, and is favorable for improving the stability of the motion of the supporting plate.

Optionally, be equipped with first puddler and second puddler in the ink cartridge, first puddler and second puddler parallel arrangement just all rotate with the ink cartridge and be connected, first screw plate has been set firmly to first puddler, and the second screw plate has been set firmly to the second puddler, and the rotation direction of first screw plate and second screw plate is opposite, and the ink cartridge is equipped with the rotary mechanism of drive first puddler and second puddler syntropy rotation.

Through adopting above-mentioned technical scheme, rotary mechanism drives first puddler and second puddler and together rotates for first screw plate and second screw plate stir and carry the printing ink in the ink horn, make printing ink at the internal circulation motion of ink box, are favorable to reducing the probability that printing ink surface congealed, guarantee printing component to the printing effect of plastic film.

Optionally, rotary mechanism includes second motor, first band pulley, second band pulley and drive belt, and second motor and printing ink box fixed connection, and the output shaft of second motor wears to establish printing ink box and with first puddler fixed connection, and first puddler deviates from the one end of second motor and wears to establish printing ink box and with first band pulley fixed connection, and the one end that the second puddler is close to first band pulley wears to establish printing ink box and with second band pulley fixed connection, and first band pulley is connected with the second band pulley through the drive belt.

Through adopting above-mentioned technical scheme, the second motor drives first puddler and first band pulley and together rotates, and first band pulley passes through the drive belt and drives the second band pulley and rotate, makes the second band pulley can drive second puddler and first puddler syntropy rotation, is convenient for realize driving first puddler and second puddler and carries out rotatory effect.

Optionally, the printing subassembly includes printing roller and the rotatory driving piece of drive printing roller, and the printing roller has set firmly the back shaft along length direction's both ends, and two back shafts rotate with corresponding support frame respectively and are connected, have set firmly the scraper between two support frames, and the scraper offsets with the printing roller, and the scraper has set firmly two scrapers along length direction, and printing roller is inconsistent with two scrapers respectively along length direction's both ends, and two scrapers deviate from the one end of scraper and have set firmly the arc, and two arcs are inconsistent with corresponding back shaft respectively.

Through adopting above-mentioned technical scheme, driving piece drive printing roller rotates, makes the printing roller can be stained with the printing ink in the ink horn, and the scraper can scrape the unnecessary printing ink of printing roller along circumference adhesion, and two scrapers can scrape the printing ink at printing roller along axial both ends, and the arc can reduce the remaining probability of printing ink, is favorable to promoting the cleanliness factor of printing roller.

Optionally, be equipped with the dust cover between two support frames, the discharge gate has been seted up to the dust cover, and a plurality of first sliders have been set firmly along length direction's both ends to the dust cover, and a plurality of first spouts have been seted up along the direction of height to the support frame, first spout and first slider looks adaptation and with first slider one-to-one.

By adopting the technical scheme, the dust cover can reduce the probability of falling into impurities in the printing roller and the ink box, and is beneficial to guaranteeing the printing quality of the plastic film by the printing roller; after finishing the printing to plastic film again, the staff promotes the dust cover to the direction that deviates from the printing roller, and first slider slides in first spout, and the support frame is spacing to the dust cover through first slider and first spout, makes the dust cover can vertically reciprocate, and operating personnel clear up scraper and printing roller comparatively convenient.

Optionally, the feed inlet has been seted up to the dust cover, and the dust cover rotates to be connected with the tensioning roller with feed inlet looks adaptation, and the dust cover has set firmly the ash scraping plate along length direction, and ash scraping plate corresponds with the feed inlet.

Through adopting above-mentioned technical scheme, take-up pulley is stretched into and is spacing to the plastic film for scrape the dirt board and can scrape the impurity that the plastic film adheres to, be favorable to reducing the probability that the dust blocked the printing roller, guarantee the printing roller to the printing effect of plastic film.

In summary, the utility model comprises at least one of the following beneficial technical effects of the printing device capable of efficiently replacing the ink cartridge:

1. when the ink box needs to be replaced, the driving mechanism drives the supporting frame to move in the direction deviating from the printing assembly, the supporting frame drives the ink box to synchronously move downwards, the ink box is separated from the limiting piece, the driving mechanism continuously drives the ink box to move downwards through the supporting plate, the ink box is completely separated from the printing assembly, the ink box is pulled by hands in the direction deviating from the supporting plate, the clamping plate is separated from the clamping groove, and the cleaning and replacement effects on the ink box are conveniently achieved;

2. when the printing assembly prints the plastic film, the driving mechanism supports the ink box through the supporting plate, so that the upper end part of the ink box is positioned in the limiting groove, the ink box pushes the limiting clamping plate, the limiting clamping plate and the limiting plate are matched to extrude the limiting spring, and the effect of limiting the ink box is realized; when the ink box needs to be cleaned, the driving mechanism drives the supporting plate to move downwards, the limiting spring rebounds to push the limiting clamping plate to move downwards, and the limiting clamping plate pushes the ink box to separate the ink box from the limiting groove, so that the ink box can be conveniently disassembled;

3. the output shaft of the first motor drives the first screw rod to rotate, and the first screw rod drives the supporting plate to move along the height direction, so that the effect of driving the supporting plate to move is realized; the first slide bar can limit the supporting plate, and is favorable for improving the stability of the motion of the supporting plate.

Drawings

Fig. 1 is a schematic view showing the overall structure of a printing apparatus for efficiently replacing ink cartridges.

Fig. 2 is intended to highlight the schematic positions of the first pulley and the second pulley.

Fig. 3 is a schematic view for highlighting the positions of the limiting plate and the limiting rod.

Fig. 4 is a schematic view for highlighting the positions of the first motor and the first screw.

Fig. 5 is a schematic view for highlighting the position of the second motor and the first stirring rod.

Reference numerals illustrate: 1. a support frame; 2. a printing assembly; 3. a driving mechanism; 4. a limiting piece; 5. a rotation mechanism; 6. a dust cover; 11. a support plate; 12. an ink cartridge; 13. a clamping plate; 14. a cross plate; 15. a placement groove; 16. a first chute; 21. a printing roller; 22. a driving member; 23. a support shaft; 24. a scraper; 31. a first motor; 32. a first screw rod; 33. a first slide bar; 34. a scraper; 35. an arc-shaped plate; 41. a limiting plate; 42. a limit rod; 43. limiting clamping plates; 44. a limit spring; 45. a connecting plate; 51. a second motor; 52. a first pulley; 53. a second pulley; 54. a transmission belt; 61. a discharge port; 62. a first slider; 63. a feed inlet; 64. a tension roller; 65. a scraper plate; 111. a clamping groove; 411. a limit groove; 121. a first stirring rod; 122. a second stirring rod; 123. a first spiral plate; 124. and a second spiral plate.

Detailed Description

The present utility model will be described in further detail below with reference to the accompanying drawings.

The embodiment of the utility model discloses a printing device capable of efficiently replacing an ink box.

Referring to fig. 1 and 2, a printing device for efficiently replacing an ink cartridge comprises two support frames 1, wherein a printing assembly 2 is arranged between the two support frames 1, the printing assembly 2 comprises a printing roller 21 and a driving piece 22 for driving the printing roller 21 to rotate, support shafts 23 are fixedly arranged at two ends of the printing roller 21 along the length direction, and the two support shafts 23 are respectively connected with the corresponding support frames 1 in a rotating manner.

Referring to fig. 1 and 2, a dust cover 6 is disposed between two support frames 1, two ends of the dust cover 6 along the length direction are fixedly provided with a plurality of first sliding blocks 62, the support frames 1 are provided with a plurality of first sliding grooves 16 along the height direction, and the first sliding grooves 16 are matched with the first sliding blocks 62 and correspond to the first sliding blocks 62 one by one. When the plastic film is required to be printed, the dust cover 6 is pulled by a hand in a direction approaching the printing roller 21, and the dust cover 6 drives the first sliding block 62 to slide in the first sliding groove 16, so that the dust cover 6 moves down vertically.

Referring to fig. 1 and 3, the dust cover 6 can shield impurities floating in the air, reduce the probability of blocking the gravure of the printing roller 21 by the impurities, and ensure the printing effect of the printing roller 21. A supporting plate 11 is slidably connected between the two supporting frames 1, an ink box 12 is arranged at the upper end part of the supporting plate 11, a clamping plate 13 is fixedly arranged at the lower end part of the ink box 12, and a clamping groove 111 matched with the clamping plate 13 is formed in the supporting plate 11. The clamping groove 111 is clamped with the clamping block, so that the support frame 1 can limit the ink box 12 along the circumferential direction through the clamping block and the clamping groove 111.

Referring to fig. 3 and 4, two support frames 1 are provided with a driving mechanism 3, the driving mechanism 3 comprises a first motor 31, a first screw rod 32 and a first sliding rod 33, the support frames 1 are provided with a placing groove 15, the first motor 31 is fixedly connected with the support frames 1 and is located in the placing groove 15, an output shaft of the first motor 31 penetrates through the support frames 1 and is fixedly connected with the first screw rod 32, and the output shaft of the first motor 31 drives the first screw rod 32 to rotate.

Referring to fig. 3 and 4, the first slide bar 33 is fixedly connected with the support frame 1 and is parallel to the first screw rod 32, and the first slide bar 33 penetrates through the support plate 11 and is slidably connected with the support plate 11. The first slide bar 33 limits the supporting plate 11, the first lead screw 32 penetrates through the supporting plate 11 and is in threaded connection with the supporting plate 11, the first lead screw 32 is matched with the first slide bar 33, the supporting frame 1 is driven to move towards the direction close to the printing roller 21, and the height of the ink box 12 is lifted.

Referring to fig. 2 and 3, the two ends of the supporting frame 1 along the width direction are fixedly provided with a transverse plate 14, and the transverse plate 14 is provided with a plurality of groups of limiting pieces 4 along the length direction. The limiting piece 4 comprises a limiting plate 41, a limiting rod 42, a limiting clamping plate 43, a limiting spring 44 and two connecting plates 45, wherein the two connecting plates 45 are fixedly connected with the limiting plate 41, one end, deviating from the limiting plate 41, of the connecting plates 45 is fixedly connected with the transverse plate 14, and the limiting plate 41 is provided with a limiting slot 411 matched with the ink box 12.

Referring to fig. 2 and 3, when the ink cartridge 12 is lifted by the driving mechanism 3 (see fig. 4) through the support plate 11, the upper end portion of the ink cartridge 12 is inserted into the limit slot 411. The limiting clamp plate 43 is slidably connected with the limiting plate 41 through the limiting slot 411, and the upper end portion of the ink cartridge 12 is abutted against the limiting clamp plate 43 and pushes the limiting clamp plate 43 to move upwards. The limiting rod 42 is fixedly arranged at the upper end part of the limiting clamping plate 43, and the limiting rod 42 penetrates through the limiting plate 41 and is in sliding connection with the limiting plate 41.

Referring to fig. 2 and 3, a limiting spring 44 is sleeved on the limiting rod 42, and two connecting ends of the limiting spring 44 are fixedly connected with the limiting plate 41 and the limiting clamping plate 43 respectively. The limiting rod 42 can limit the limiting spring 44, the ink box 12 pushes the limiting clamp plate 43, the limiting clamp plate 43 and the limiting plate 41 are matched to compress the limiting spring 44, and then the limiting piece 4 is matched with the supporting plate 11, so that the effect of limiting the height direction of the ink box 12 is achieved.

Referring to fig. 1 and 4, after the ink cartridge 12 is conveyed to a predetermined position by the driving mechanism 3 (refer to fig. 4) through the support plate 11, the lower end portion of the printing roller 21 is positioned in the ink cartridge 12. The dust cover 6 is provided with a feed port 63, and the plastic film to be printed enters the dust cover 6 through the feed port 63 and is abutted against the printing roller 21. The dust cover 6 is rotatably connected with a tensioning roller 64 matched with the feeding hole 63, and the tensioning wheel can support and limit the plastic film.

Referring to fig. 1 and 2, the dust cover 6 is fixedly provided with the ash scraping plate 65 along the length direction, the ash scraping plate 65 corresponds to the feeding hole 63, the plastic film is abutted against the ash scraping plate 65, the ash scraping plate 65 scrapes impurities attached to the surface to be printed of the plastic film before the plastic film enters the dust cover 6, the probability that the impurities block the gravure of the printing roller 21 is reduced, and the printing effect of the printing roller 21 on the plastic film can be guaranteed.

Referring to fig. 1 and 2, the driving member 22 rotates the printing roller 21 through the supporting shaft 23, so that the printing roller 21 picks up the ink in the ink cartridge 12. A scraper 24 is fixedly arranged between the two support frames 1, the scraper 24 is in contact with the printing roller 21, and the scraper 24 can scrape redundant ink attached to the printing roller 21 along the circumferential direction, so that the printing roller 21 can print the ink in the intaglio onto the plastic film, and the printing effect on the plastic film is realized.

Referring to fig. 2 and 3, the scraper 24 is fixedly provided with two scrapers 34 along the length direction, two ends of the printing roller 21 along the length direction respectively collide with the two scrapers 34, the two scrapers 34 can scrape ink at two ends of the printing roller 21 along the axial direction, and the adhesion of the ink at two ends of the printing roller 21 along the circumferential direction is reduced. One end of the two scraping plates 34, which is away from the scraping knife 24, is fixedly provided with an arc-shaped plate 35, and the two arc-shaped plates 35 respectively collide with the corresponding supporting shafts 23. The arc 35 can block the ink on the scraper 34, reduce the probability of ink flowing onto the supporting shaft 23, and improve the cleanliness of the printing roller 21.

Referring to fig. 2 and 5, the ink cartridge 12 is provided with a rotation mechanism 5, the rotation mechanism 5 includes a second motor 51, a first pulley 52, a second pulley 53 and a transmission belt 54, the second motor 51 is fixedly connected with the ink cartridge 12, a first stirring rod 121 and a second stirring rod 122 are provided in the ink cartridge 12, and the first stirring rod 121 and the second stirring rod 122 are arranged in parallel and are both rotatably connected with the ink cartridge 12. The output shaft of the second motor 51 penetrates through the ink box 12 and is fixedly connected with the first stirring rod 121, one end, deviating from the second motor 51, of the first stirring rod 121 penetrates through the ink box 12 and is fixedly connected with the first belt wheel 52, and the second motor 51 drives the first stirring rod 121 and the first belt wheel 52 to rotate together.

Referring to fig. 2 and 3, the first stirring rod 121 is fixedly provided with a first spiral plate 123, and the first stirring rod 121 drives the first spiral plate 123 to rotate, so that the first spiral plate 123 can drive the ink on the surface layer of the ink cartridge 12 to move, and the probability of solidification of the ink surface layer is reduced.

Referring to fig. 2 and 3, the second stirring rod 122 is fixedly connected to the second pulley 53 by penetrating the ink cartridge 12 near one end of the first pulley 52, and the first pulley 52 is connected to the second pulley 53 by the belt 54. The first belt wheel 52 drives the second belt wheel 53 to rotate through the transmission belt 54, and the second belt wheel 53 drives the second stirring rod 122 to rotate in the same direction as the first stirring rod 121. The second stirring rod 122 is fixedly provided with a second spiral plate 124, and the rotation directions of the first spiral plate 123 and the second spiral plate 124 are opposite.

Referring to fig. 2 and 3, the first stirring rod 121 and the second stirring rod 122 rotate in the same direction, so that the first spiral plate 123 and the second spiral plate 124 stir and convey the ink in the ink box 12, the ink circularly moves in the ink box 12, the probability of solidification of the surface of the ink is further reduced, and the printing effect of the printing component 2 on the plastic film is guaranteed. The dust cover 6 is provided with a discharge hole 61, and the printed plastic film is discharged through the discharge hole 61.

Referring to fig. 2 and 3, when printing of the plastic film is completed, the ink in the ink cartridge needs to be replaced and cleaned. The driving mechanism 3 (refer to fig. 4) drives the support frame 1 to move in a direction away from the printing assembly 2, the ink cartridge 12 moves downwards synchronously with the support frame 1 under the action of gravity, and the limiting spring 44 rebounds to push the limiting clamping plate 43 to rebound, so that the ink cartridge 12 is pushed to be separated from the limiting plate 41. The driving mechanism 3 (refer to fig. 4) continuously drives the ink box 12 to move downwards through the supporting plate 11, so that the ink box 12 is completely separated from the printing component 2, the ink box 12 is pulled by a hand in a direction deviating from the supporting plate 11, the clamping plate 13 is separated from the clamping groove 111, and the cleaning and replacement effects on the ink box 12 are more convenient.

The implementation principle of the printing device for efficiently replacing the ink cartridge 12 in the embodiment of the utility model is as follows: the output shaft of the first motor 31 drives the first screw 32 to rotate. The first screw rod 32 is matched with the first slide rod 33, drives the support frame 1 to move towards the direction close to the printing roller 21, and lifts the height of the ink box 12, so that the upper end part of the ink box 12 is inserted into the limit slot 411, the upper end part of the ink box 12 is in contact with the limit clamp plate 43, and the limit clamp plate 43 is pushed to move upwards. The limiting clamp plate 43 and the limiting plate 41 cooperate to compress the limiting spring 44, so that the limiting piece 4 and the supporting plate 11 cooperate to realize the effect of limiting the height direction of the ink cartridge 12. When the printing of the plastic film is completed, the ink in the ink cartridge needs to be replaced and cleaned. The driving mechanism 3 drives the support frame 1 to move in a direction deviating from the printing assembly 2, the ink box 12 moves downwards synchronously with the support frame 1 under the action of gravity, and the limiting spring 44 rebounds to push the limiting clamping plate 43 to rebound and push the ink box 12 to be separated from the limiting plate 41. The driving mechanism 3 continuously drives the ink box 12 to move downwards through the supporting plate 11, so that the ink box 12 is completely separated from the printing component 2, the ink box 12 is pulled by hands in the direction away from the supporting plate 11, the clamping plate 13 is separated from the clamping groove 111, and the ink box 12 is cleaned and replaced conveniently.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims (8)

1. Printing device of high-efficient change ink horn, including two support frames (1), its characterized in that: a printing component (2) for printing the plastic film is arranged between the two support frames (1), a support plate (11) is connected between the two support frames (1) in a sliding manner, and the two support frames (1) are provided with a driving mechanism (3) for driving the support plate (11) to move; the upper end of the supporting plate (11) is provided with an ink box (12), the lower end of the ink box (12) is fixedly provided with a clamping plate (13), the supporting plate (11) is provided with a clamping groove (111) which is matched with the clamping plate (13), the two ends of the supporting frame (1) along the width direction are fixedly provided with a transverse plate (14), and the transverse plate (14) along the length direction is provided with a plurality of groups of limiting parts (4) which limit the ink box (12).

2. The printing device for efficiently replacing ink cartridges as defined in claim 1, wherein: limiting part (4) include limiting plate (41), gag lever post (42), limiting clamp plate (43), spacing spring (44) and two connecting plates (45), two connecting plates (45) all with limiting plate (41) fixed connection, one end that limiting plate (41) was deviate from to connecting plate (45) and diaphragm (14) fixed connection, limiting groove (411) with printing ink box (12) looks adaptation have been seted up to limiting plate (41), limiting clamp plate (43) pass through limiting groove (411) and limiting plate (41) sliding connection, limiting rod (42) set firmly in the upper end of limiting clamp plate (43), limiting plate (41) and with limiting plate (41) sliding connection are worn to establish to limiting rod (42), limiting spring (44) cover is located on limiting plate (42), two link of limiting spring (44) respectively with limiting plate (41) and limiting clamp plate (43) fixed connection.

3. The printing device for efficiently replacing ink cartridges as defined in claim 1, wherein: the driving mechanism (3) comprises a first motor (31), a first screw rod (32) and a first sliding rod (33), wherein the support frame (1) is provided with a placing groove (15), the first motor (31) is fixedly connected with the support frame (1) and is positioned in the placing groove (15), an output shaft of the first motor (31) penetrates through the support frame (1) and is fixedly connected with the first screw rod (32), the first screw rod (32) penetrates through the support plate (11) and is in threaded connection with the support plate (11), the first sliding rod (33) is fixedly connected with the support frame (1) and is parallel to the first screw rod (32), and the first sliding rod (33) penetrates through the support plate (11) and is in sliding connection with the support plate (11).

4. The printing device for efficiently replacing ink cartridges as defined in claim 1, wherein: be equipped with first puddler (121) and second puddler (122) in printing ink box (12), first puddler (121) and second puddler (122) parallel arrangement just all rotate with printing ink box (12) and be connected, first puddler (121) set firmly first screw plate (123), second puddler (122) set firmly second screw plate (124), the opposite direction of rotation of first screw plate (123) and second screw plate (124), printing ink box (12) are equipped with rotary mechanism (5) of drive first puddler (121) and second puddler (122) syntropy rotation.

5. The printing device for efficient replacement of ink cartridges as recited in claim 4, wherein: rotary mechanism (5) are including second motor (51), first band pulley (52), second band pulley (53) and drive belt (54), second motor (51) and printing ink box (12) fixed connection, printing ink box (12) and with first puddler (121) fixed connection are worn to the output shaft of second motor (51), printing ink box (12) and with first band pulley (52) fixed connection are worn to the one end that first puddler (121) deviates from second motor (51), printing ink box (12) and with second band pulley (53) fixed connection are worn to the one end that second puddler (122) is close to first band pulley (52), first band pulley (52) are connected with second band pulley (53) through drive belt (54).

6. The printing device for efficiently replacing ink cartridges as defined in claim 1, wherein: printing subassembly (2) are including printing roller (21) and rotatory driving piece (22) of drive printing roller (21), printing roller (21) set firmly back shaft (23) along length direction's both ends, two back shafts (23) rotate with corresponding support frame (1) respectively and are connected, set firmly scraper (24) between two support frames (1), scraper (24) are inconsistent with printing roller (21), scraper (24) set firmly two scraper blades (34) along length direction, printing roller (21) are inconsistent with two scraper blades (34) respectively along length direction's both ends, arc (35) have been set firmly to the one end that two scraper blades (34) deviate from scraper (24), two arc (35) are inconsistent with corresponding back shaft (23) respectively.

7. The printing device for efficiently replacing ink cartridges as defined in claim 1, wherein: be equipped with dust cover (6) between two support frames (1), discharge gate (61) have been seted up to dust cover (6), and dust cover (6) have set firmly a plurality of first sliders (62) along length direction's both ends, and a plurality of first spouts (16) have been seted up along the direction of height to support frame (1), first spout (16) and first slider (62) looks adaptation and with first slider (62) one-to-one.

8. The printing device for efficient replacement of ink cartridges as recited in claim 7, wherein: the dustproof cover (6) is provided with a feed inlet (63), the dustproof cover (6) is rotationally connected with a tensioning roller (64) matched with the feed inlet (63), the dustproof cover (6) is fixedly provided with a dust scraping plate (65) along the length direction, and the dust scraping plate (65) corresponds to the feed inlet (63).