CN212313030U

CN212313030U - Sliding printing equipment for digital direct injection machine

Info

Publication number: CN212313030U
Application number: CN202020793876.7U
Authority: CN
Inventors: 廖志文; 廖志浩
Original assignee: Longjiang Zhenyou Union Knitting Garment Co ltd Shunde District Foshan City
Current assignee: Longjiang Zhenyou Union Knitting Garment Co ltd Shunde District Foshan City
Priority date: 2020-05-13
Filing date: 2020-05-13
Publication date: 2021-01-08
Anticipated expiration: 2030-05-13

Abstract

The utility model relates to the technical field of sliding printing equipment, in particular to sliding printing equipment for a digital direct injection machine, which comprises a frame, a rack, a digital direct injection machine head, a sliding printing machine head and a plurality of backing plates for placing cloth, wherein the rack is fixed at the top of the frame, the digital direct injection machine head is connected to the top of the frame in a sliding way and is positioned above the rack, the sliding printer head for completing the silk screen printing process is connected to the top of the frame in a sliding mode, the sliding printer head is provided with a lifting assembly, two opposite silk screen plates, two opposite scraping plates and two opposite driving assemblies, the lifting assembly and the driving assemblies are located on the top of the sliding printer head, the two horizontal silk screen plates are arranged on the working portion of the lifting assembly, the liftable silk screen plates are located above the backing plate, the driving component for driving the scraping of the scraping plate is positioned above the silk screen plate, and the two liftable scraping plates are arranged on the corresponding driving components. The utility model discloses have the effect that improves production efficiency.

Description

Sliding printing equipment for digital direct injection machine

Technical Field

The utility model belongs to the technical field of the technique of slip lithography apparatus and specifically relates to a slip lithography apparatus for digital direct injection machine is related to.

Background

The digital direct injection printing machine is used for printing clothing products, and most clothing printing factories often use the digital direct injection printing machine for printing the clothing products. In order to further optimize the printing process or increase the layering of the printing, it is often necessary to combine the digital direct injection with the screen printing, that is, after the digital direct injection process is completed, the screen printing process is used to print the clothing product on the digital direct injection machine again.

The utility model discloses a chinese utility model patent that current bulletin number is CN209813450U discloses a digital direct injection machine with drying device, which comprises a frame, connect the slide rail of frame both sides and connect on the slide rail and along the sliding sleeve of slide rail removal, the sliding sleeve is equipped with two sets ofly, two sets of sliding sleeves are located same slide rail, two sets of slide rails all are connected with the support frame through the sliding sleeve, be connected with the stoving case between the support frame, the opening of stoving case is down, the top of stoving case is fixed with drive arrangement, the bottom of stoving incasement wall is fixed with the guide bar, drive arrangement's output shaft passes the roof of stoving case and is connected with the first bracing piece that the level set up, the both ends of first bracing piece articulate there is the second bracing piece, the bottom of second bracing piece articulates there is the guide ring, guide ring sliding connection is on the guide bar, the bottom mounting.

The above prior art solutions have the following drawbacks: when the clothes products on the digital direct injection machine need to be subjected to screen printing, workers need to hold the screen plate and the scraper plate, the screen plate added with ink is sequentially placed on the clothes products, and the scraper plate is used for scraping and printing the top surface of the screen plate back and forth to complete the screen printing process, so that the production efficiency of the clothes products is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a slip lithography apparatus for digital direct injection machine, have the effect that improves production efficiency to the not enough of prior art existence.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a slip lithography apparatus for digital direct injection machine, includes frame, rack and digital direct injection aircraft nose, the rack is fixed in the frame top, digital direct injection aircraft nose sliding connection just is located the rack top, the rack is equipped with a plurality of backing plates that are used for placing the cloth, still includes the slip printing aircraft nose for accomplish the screen printing process slip printing aircraft nose sliding connection is in the frame top, is the font of falling U the slip printing aircraft nose is equipped with lifting unit, and is vertical lifting unit is located the middle part of slip printing aircraft nose horizontal part bottom surface, all be equipped with horizontally wire mesh board between lifting unit and the vertical portion of the slip printing aircraft nose that corresponds, wire mesh board is connected with lifting unit's work portion, wire mesh board is located the top of backing plate, two vertical portions of slip printing aircraft nose all are equipped with drive assembly, lifting unit is located between two relative drive assemblies, the driving assembly is provided with a scraping plate for scraping and printing, the horizontal scraping plate is positioned above the silk screen plate, and the length of the scraping plate is equal to the width of the silk screen plate.

By adopting the technical scheme, when screen printing is needed, a worker moves the sliding printer head, two opposite screen plates are enabled to be opposite to corresponding base plates, the lifting assembly is controlled to enable the bottom surfaces of the screen plates to be abutted to clothing products on the base plates, the driving assembly enables the scraping plates to be abutted to the top surfaces of the screen plates filled with ink, and scraping printing action is completed.

The present invention may be further configured in a preferred embodiment as: drive assembly includes first cylinder, first mount pad and two relative second cylinders, first cylinder is fixed in the vertical portion of slip printing machine head and is close to in the top of slip printing machine head, first mount pad sliding connection is in the horizontal part of slip printing machine head, and is horizontal the telescopic link of first cylinder is worn to establish slip printing machine head and with first mount pad fixed connection, vertical two the second cylinder is fixed in first mount pad, the side fixed connection of silk otter board is kept away from with the scraper blade to the telescopic link of second cylinder.

Through adopting above-mentioned technical scheme, first mount pad can be controlled to first cylinder and the horizontal part removal along sliding press, and the height of scraper blade can be adjusted to the second cylinder to enable scraper blade and silk screen board top surface butt, the horizontal action of first cylinder control scraper blade, the vertical action of second cylinder control scraper blade, thereby make the scraper blade can accomplish the scraping seal.

The present invention may be further configured in a preferred embodiment as: the lifting component comprises a second mounting seat, a servo motor, a screw rod, a guide rod and a third sliding block, the second mounting seat is fixed on the bottom surface of the horizontal part of the sliding printing head and is vertically arranged in a hollow rectangular cuboid shape, the servo motor is fixed on the inner top surface of the second mounting seat, the second mounting seat is provided with a horizontal fixing plate, the fixed plate is close to the servo motor, the vertical screw rod is rotatably connected between the fixed plate and the inner bottom surface of the second mounting seat, the vertical guide rod is connected between the fixed plate and the inner bottom surface of the second mounting seat, the output shaft of the servo motor penetrates through the fixed plate and is connected with the screw rod, the third slide block is sleeved on the guide rod and is in threaded connection with the screw rod, the side face, close to the wire mesh plate, of the second mounting seat is provided with strip-shaped holes, and the third sliding block is connected with the wire mesh plate through the strip-shaped holes.

Through adopting above-mentioned technical scheme, servo motor can control the lift of third slider, and third slider can drive silk screen board along vertical guide bar reciprocating motion to make the clothing product on silk screen board butt or keep away from the backing plate.

The present invention may be further configured in a preferred embodiment as: the first mounting seat is provided with a liftable ink brush, the ink brush is positioned above the base plate, and the ink brush is positioned between the scraper and the second mounting seat.

Through adopting above-mentioned technical scheme, the printing ink brush can butt or keep away from the silk screen board top surface to can be along with first mount pad horizontal migration, thereby make the printing ink brush can paint the printing ink of silk screen board top surface evenly.

The present invention may be further configured in a preferred embodiment as: the third slider is provided with two opposite third mounting seats, the top surface of each third mounting seat is provided with a second groove matched with the screen plate, the screen plate is mounted in the second groove, the top surface and the bottom surface of the screen plate are respectively flush with the top surface and the bottom surface of the third mounting seat, and the second groove is communicated with the bottom surface of the third mounting seat.

Through adopting above-mentioned technical scheme, the third mount pad provides the position of installation for the silk screen board, also is convenient for the workman to change the silk screen board as required.

The present invention may be further configured in a preferred embodiment as: the printing head comprises a first mounting seat and a second mounting seat, wherein the first mounting seat is provided with a first convex block, the first convex block is provided with a first concave groove, the first concave groove is matched with the first convex block, the first convex block is provided with a second convex block, the second convex block is provided with a third concave groove, the second convex block is opposite to the first convex block, the third concave groove is matched.

Through adopting above-mentioned technical scheme, the third recess provides sliding connection's position for the second lug, sliding connection in slip printing machine top that first mount pad can be better.

The present invention may be further configured in a preferred embodiment as: the frame includes four spinal branch vaulting poles, four vertical the bracing piece is fixed in the bottom surface of rack, and is four vertical the bracing piece is located the four corners department of rack bottom surface respectively, four the bracing piece is equipped with two relative connecting plates, horizontally two the length direction of connecting plate is parallel with the digital moving direction of directly spouting the aircraft nose, the vertical side that the rack was kept away from to the connecting plate is equipped with the slide rail, is the font of falling U the digital vertical portion of directly spouting the aircraft nose is equipped with two relative and with the first slider of slide rail adaptation, first slider and slide rail sliding connection.

Through adopting above-mentioned technical scheme, the connecting plate provides the position that sets up for the slide rail, and first slider and sliding rail connection to make the digital straight aircraft nose can sliding connection in slide rail, and the digital horizontal part of directly spouting the aircraft nose can be located the backing plate top.

The present invention may be further configured in a preferred embodiment as: the vertical portion of slip printing machine head is equipped with two relative and with the second slider of slide rail adaptation, second slider sliding connection is in the slide rail.

Through adopting above-mentioned technical scheme, the slide rail provides sliding connection's position for the second slider, and sliding connection that the vertical portion of slip printing machine head can be better in the slide rail.

To sum up, the utility model discloses a following at least one useful technological effect:

1. when the screen printing is needed, a worker moves the sliding printer head to enable the two opposite screen plates to be opposite to the corresponding base plates, the lifting assembly is controlled to enable the bottom surfaces of the screen plates to be abutted to clothing products on the base plates, the driving assembly enables the scraping plates to be abutted to the top surfaces of the screen plates filled with ink, and the scraping action is completed.

2. The ink brush can abut against or be far away from the top surface of the screen plate and can horizontally move along with the first mounting seat, so that the ink brush can uniformly paint ink on the top surface of the screen plate.

3. The third mounting seat provides a mounting position for the screen plate, and workers can replace the screen plate conveniently according to requirements.

Drawings

Fig. 1 is a schematic view of the entire structure of a slide printing apparatus for a digital direct injection machine according to the present embodiment.

Fig. 2 is a schematic cross-sectional view of a slide printing apparatus for a digital direct injector in the present embodiment.

Fig. 3 is a partially enlarged schematic view of a portion a in fig. 2.

Fig. 4 is a schematic cross-sectional view of the first mount in this embodiment.

In the figure, 1, a frame; 11. a support bar; 12. a connecting plate; 121. a slide rail; 2. a rack; 21. a rectangular frame; 22. a long rod; 23. a short bar; 3. a digital direct injection handpiece; 4. sliding the printer head; 41. a third mounting seat; 411. a first bump; 412. a second groove; 42. a first groove; 43. a second slider; 44. a third groove; 5. a base plate; 6. a wire mesh plate; 7. a squeegee; 8. a lifting assembly; 81. a second mounting seat; 811. a strip-shaped hole; 82. a servo motor; 83. a screw rod; 84. a guide bar; 85. a third slider; 851. a connecting rod; 86. a fixing plate; 9. a drive assembly; 91. a first cylinder; 92. a first mounting seat; 921. a second bump; 922. printing ink brush; 93. a second cylinder.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, the utility model discloses a sliding printing device for a digital direct injection machine, which comprises a frame 1, a rack 2, a digital direct injection machine head 3 and a sliding printing machine head 4, wherein the horizontal rack 2 is fixed on the top of the frame 1, the digital direct injection machine head 3 is slidably connected on the top of the frame 1 and positioned above the rack 2, the sliding printing machine head 4 for completing the silk-screen printing process is slidably connected on the top of the frame 1, the rack 2 is provided with a plurality of backing plates 5 for placing cloth, the horizontal backing plate 5 is positioned below the digital direct injection machine head 3 and the sliding printing machine head 4, the sliding printing machine head 4 is in an inverted U shape, the sliding printing machine head 4 is provided with a lifting assembly 8, the vertical lifting assembly 8 is positioned in the middle of the bottom surface of the horizontal part of the sliding printing machine head 4, a horizontal silk screen plate 6 is arranged between the, two silk screen plates 6 are connected with the working part of a lifting component 8, the two silk screen plates 6 are positioned on the same horizontal plane, the silk screen plates 6 are positioned above a backing plate 5, the area of the working part of the silk screen plates 6 is equal to that of the backing plate 5, two vertical parts of a sliding printer head 4 are provided with driving components 9, the lifting component 8 is positioned between two opposite driving components 9, the driving components 9 are provided with scraping plates 7 for scraping, the horizontal scraping plates 7 are positioned above the silk screen plates 6, the length of the scraping plates 7 is equal to the width of the silk screen plates 6, when silk screen printing is needed, a worker moves the sliding printer head 4 to enable the silk screen plates 6 positioned above the backing plate 5 to be opposite to the backing plate 5, the lifting component 8 is controlled to enable the bottom surfaces of the silk screen plates 6 to be abutted to clothing products on the backing plate 5, the driving components 9 enable the scraping plates 7 to be abutted to the top surfaces of, the semi-automatic screen printing process is beneficial to improving the production efficiency.

Referring to fig. 1, frame 1 comprises four bracing pieces 11, four vertical bracing pieces 11 are fixed in the bottom surface of rack 2, four vertical bracing pieces 11 are located the four corners department of rack 2 bottom surface respectively, four bracing pieces 11 that length equals are equipped with two relative connecting plates 12, the length direction of two horizontally connecting plates 12 is parallel with the digital moving direction of directly spouting aircraft nose 3, the length of connecting plate 12 is greater than rack 2's length, the side that lifting unit 8 was kept away from to connecting plate 12 is equipped with slide rail 121, the vertical portion that is the digital straight of inverted U font spouts aircraft nose 3 is equipped with two relative and with the first slider of slide rail 121 adaptation, first slider and slide rail 121 sliding connection, connecting plate 12 provides the position that sets up for slide rail 121, thereby make digital straight aircraft nose 3 ability sliding connection in slide rail 121 of spouting, and digital horizontal part of directly spouting aircraft nose 3 can be located backing plate 5 top.

Referring to fig. 1, the vertical section of the slide rail 121 is T-shaped, the slide rail 121 and the connecting plate 12 are parallel to each other and have the same length, and the first slider is also T-shaped.

Referring to fig. 2, the vertical portion of the sliding printer head 4 is provided with two opposite second sliders 43 adapted to the slide rails 121, and the second slider 43 in a T shape is slidably connected to the slide rails 121.

Referring to fig. 1, the gantry 2 is formed of a rectangular frame 21, two stock 22 and a plurality of quarter butt 23 are constituteed, rectangle frame 21 bottom surface four corners respectively with four spinal branch vaulting pole 11's top fixed connection, rectangle frame 21's length direction is parallel with digital straight injection aircraft nose 3's moving direction, two mutual parallel stock 22 intervals are fixed in rectangle frame 21, a plurality of quarter butt 23 are parallel each other and the fixed rectangle frame 21 in interval, stock 22's length direction is parallel with digital straight injection aircraft nose 3 moving direction, quarter butt 23's length direction is perpendicular with stock 22's length direction, 5 intervals of a plurality of backing plates set up and are divided into two rows that are parallel to each other, a plurality of backing plates 5 are fixed in the stock 22 that corresponds, a plurality of backing plates 5 are close to stock 22 and quarter butt 23's intersection respectively, a plurality of quarter butt 23's quantity is greater than one and less than or equal to ten, a plurality of backing plates 5.

Referring to fig. 1 and 3, the lifting assembly 8 is composed of a second mounting base 81, a servo motor 82, a screw rod 83, a guide rod 84 and a third sliding block 85, a top surface of the second mounting base 81 is fixed at a midpoint of a bottom surface of a horizontal portion of the sliding printer head 4, the second mounting base 81 is in a hollow rectangular square shape and is vertically arranged, the servo motor 82 is fixed at an inner top surface of the second mounting base 81, a horizontal fixing plate 86 is arranged in the second mounting base 81, an area of the fixing plate 86 is equal to a cross-sectional area of the second mounting base 81, the fixing plate 86 is close to the servo motor 82, the vertical screw rod 83 is rotatably connected between the fixing plate 86 and the inner bottom surface of the second mounting base 81, the vertical guide rod 84 is connected between the fixing plate 86 and the inner bottom surface of the second mounting base 81, an output shaft of the servo motor 82 penetrates through the fixing plate 86 and is connected with the screw rod 83, the third sliding block 85 is, the side that second mount pad 81 is close to wire mesh plate 6 has all seted up bar hole 811, the side that third slider 85 is close to bar hole 811 all is equipped with the connecting rod 851 of wearing to establish bar hole 811, the end that third slider 85 was kept away from to connecting rod 851 is connected with wire mesh plate 6, servo motor 82 can control the lift of third slider 85, third slider 85 can drive wire mesh plate 6 along vertical guide bar 84 reciprocating motion, thereby make wire mesh plate 6 can the butt or keep away from the clothing product on backing plate 5.

Referring to fig. 2 and 3, a third mounting seat 41 is disposed between each connecting rod 851 and the corresponding vertical portion of the sliding printer head 4, a first protrusion 411 is disposed on a side edge of the horizontal third mounting seat 41 close to the vertical portion of the sliding printer head 4, a first groove 42 adapted to the first protrusion 411 is disposed on a side surface of the vertical portion of the sliding printer head 4 close to the third mounting seat 41, the first protrusion 411 is slidably connected to the first groove 42, a stepped second groove 412 is disposed on a top surface of the third mounting seat 41, a notch area of the second groove 412 is larger than a groove bottom area of the second groove 412, a groove bottom of the second groove 412 penetrates through a bottom surface of the third mounting seat 41, a cross section of the screen plate 6 adapted to the second groove 412 is trapezoidal, the screen plate 6 is connected into the second groove 412 by bolts, a top surface of the screen plate 6 is flush with a top surface of the third mounting seat 41, a bottom surface of the screen plate 6 is flush with a bottom surface of the third mounting seat 41, the third mounting seat 41 provides a mounting position for the screen plate 6, and is convenient for workers to replace the screen plate 6 according to requirements.

Referring to fig. 2 and 4, the driving assembly 9 includes a first cylinder 91, a first mounting seat 92 and two opposite second cylinders 93, the first cylinder 91 is fixed at the vertical portion of the sliding printer head 4 and close to the top of the sliding printer head 4, the first mounting seat 92 is slidably connected to the horizontal portion of the sliding printer head 4, the telescopic rod of the horizontal first cylinder 91 penetrates through the sliding printer head 4 and is fixedly connected with the first mounting seat 92, two vertical second cylinders 93 are fixed at the side of the first mounting seat 92, the telescopic rod of the second cylinder 93 is fixedly connected with the side of the scraper 7 far away from the screen plate 6, the first cylinder 91 can control the first mounting seat 92 to move along the horizontal portion of the sliding printer, the second cylinder 93 can adjust the height of the scraper 7, so that the scraper 7 can abut against the top surface of the screen plate 6, the first cylinder 91 controls the horizontal action of the scraper 7, the second cylinder 93 controls the longitudinal action of the scraper 7, thereby enabling the squeegee 7 to perform the squeegeeing.

Referring to fig. 4, two opposite second protrusions 921 with inverted L-shaped vertical cross-sections are disposed on the top of the first mounting seat 92, two opposite third grooves 44 adapted to the corresponding second protrusions 921 are disposed on the top of the sliding printer head 4, and the second protrusions 921 are slidably connected to the corresponding third grooves 44.

Referring to fig. 2 and 3, an ink brush 922 is arranged on the first mounting seat 92, two opposite second air cylinders 93 are additionally arranged on the first mounting seat 92, the two opposite second air cylinders 93 are fixed on the side surface of the first mounting seat 92, telescopic rods of the newly-added second air cylinders 93 are fixedly connected with the ink brush 922, the ink brush 922 is located between the scraping plate 7 and the second mounting seat 81, the length of the side edge of the ink brush 922 close to the backing plate 5 is equal to the length of the side edge of the scraping plate 7 close to the backing plate 5, and the side surface of the ink brush 922 is parallel to the side surface of the scraping plate 7.

The implementation principle of the embodiment is as follows: when the silk-screen printing is needed, a worker controls the digital direct injection machine head 3 to enable the digital direct injection machine head to be far away from the sliding printing machine head 4, then the sliding printing machine head 4 is pulled to move along the sliding rail 121, two opposite silk screen plates 6 are respectively located above the corresponding backing plates 5, the silk screen plates 6 are pressed downwards through the servo motor 82 and are abutted to clothing products, during printing, the two second air cylinders 93 control lifting of the scraper 7 and the ink brush 922, the scraper 7 is lifted during ink smearing, the ink brush 922 is lowered during scraping, the scraper 7 is lowered during scraping, the ink brush 922 is lifted, the first mounting seat 92 is horizontally moved through the first air cylinder 91 to complete printing, the worker can perform the silk-screen printing on the clothing products on the two backing plates 5 by moving the sliding printing machine head 4 every time, and the production efficiency.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a slip lithography apparatus for digital direct injection machine, includes frame (1), rack (2) and digital direct injection aircraft nose (3), rack (2) are fixed in frame (1) top, digital direct injection aircraft nose (3) sliding connection just is located rack (2) top in frame (1) top, rack (2) are equipped with a plurality of backing plates (5) that are used for placing the cloth, its characterized in that still includes slip printing machine head (4), be used for accomplishing the screen printing process slip printing machine head (4) sliding connection is in frame (1) top, be the font of falling U slip printing machine head (4) are equipped with lifting unit (8), and is vertical lifting unit (8) are located the middle part of slip printing machine head (4) horizontal part bottom surface, all be equipped with horizontally silk screen board (6) between lifting unit (8) and the vertical portion of the slip printing machine head (4) that corresponds, the silk screen board (6) are connected with the working part of lifting unit (8), silk screen board (6) are located the top of backing plate (5), two vertical portions of slip printing head (4) all are equipped with drive assembly (9), lifting unit (8) are located between two relative drive assembly (9), drive assembly (9) are equipped with scraper blade (7) that are used for scraping the seal, and are horizontal scraper blade (7) are located silk screen board (6) top, the length of scraper blade (7) equals with the width of silk screen board (6).

2. The sliding printing device for the digital direct injection machine according to claim 1, wherein the driving assembly (9) comprises a first cylinder (91), a first mounting seat (92) and two opposite second cylinders (93), the first cylinder (91) is fixed at the vertical part of the sliding printing head (4) and close to the top of the sliding printing head (4), the first mounting seat (92) is slidably connected with the horizontal part of the sliding printing head (4), the horizontal telescopic rod of the first cylinder (91) penetrates through the sliding printing head (4) and is fixedly connected with the first mounting seat (92), the vertical second cylinders (93) are fixed at the first mounting seat (92), and the telescopic rod of the second cylinder (93) is fixedly connected with the side edge of the scraper (7) far away from the screen plate (6).

3. The sliding printing device for the digital direct injection machine according to claim 2, wherein the lifting assembly (8) comprises a second mounting seat (81), a servo motor (82), a screw rod (83), a guide rod (84) and a third sliding block (85), the second mounting seat (81) is fixed on the bottom surface of the horizontal part of the sliding printer head (4), the second mounting seat (81) in the shape of a hollow rectangular cube is vertically arranged, the servo motor (82) is fixed on the inner top surface of the second mounting seat (81), the second mounting seat (81) is provided with a horizontal fixing plate (86), the fixing plate (86) is close to the servo motor (82), the vertical screw rod (83) is rotatably connected between the fixing plate (86) and the inner bottom surface of the second mounting seat (81), the vertical guide rod (84) is connected between the fixing plate (86) and the inner bottom surface of the second mounting seat (81), the output shaft of servo motor (82) wears to locate fixed plate (86) and is connected with lead screw (83), guide bar (84) and with lead screw (83) threaded connection are located to third slider (85) cover, bar hole (811) have all been seted up to second mount pad (81) side near silk otter board (6), third slider (85) are connected with silk otter board (6) through bar hole (811).

4. The sliding printing device for digital direct injection machine according to claim 3, characterized in that the first mounting seat (92) is provided with a liftable ink brush (922), the ink brush (922) is located above the backing plate (5), and the ink brush (922) is located between the scraper (7) and the second mounting seat (81).

5. The sliding printing device for the digital direct injection machine according to claim 3, wherein the third slider (85) is provided with two opposite third installation seats (41), the top surface of the third installation seat (41) is provided with a second groove (412) matched with the screen plate (6), the screen plate (6) is installed in the second groove (412), the top surface and the bottom surface of the screen plate (6) are flush with the top surface and the bottom surface of the third installation seat (41), respectively, and the second groove (412) is communicated with the bottom surface of the third installation seat (41).

6. The sliding printing device for the digital direct injection machine according to claim 2, wherein the top of the first mounting seat (92) is provided with two opposite second projections (921) with inverted-L-shaped vertical cross-sections, the top of the sliding printing head (4) is provided with two opposite third grooves (44) matched with the corresponding second projections (921), and the second projections (921) are slidably connected with the corresponding third grooves (44).

7. The sliding printing apparatus for a digital direct injection machine according to claim 1, wherein the frame (1) comprises four support rods (11), four vertical support rods (11) are fixed on the bottom surface of the rack (2), the four vertical support rods (11) are respectively located at four corners of the bottom surface of the rack (2), the four support rods (11) are provided with two opposite connecting plates (12), the length direction of the two horizontal connecting plates (12) is parallel to the moving direction of the digital direct injection machine head (3), the vertical side surface of the connecting plate (12) away from the rack (2) is provided with a sliding rail (121), the vertical portion of the digital direct injection machine head (3) in the shape of an inverted U is provided with two opposite first sliding blocks adapted to the sliding rail (121), and the first sliding blocks are slidably connected with the sliding rail (121).

8. The sliding printing device for digital direct injection machines according to claim 7, characterized in that said vertical portion of the sliding printer head (4) is provided with two opposite second sliders (43) adapted to the sliding rails (121), said second sliders (43) being slidably connected to the sliding rails (121).