CN215921543U

CN215921543U - Full-automatic curved surface screen printing machine

Info

Publication number: CN215921543U
Application number: CN202121762304.3U
Authority: CN
Inventors: 姚金平
Original assignee: Hangzhou Yizhong Precision Technology Co ltd
Current assignee: Hangzhou Yizhong Precision Technology Co ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2022-03-01
Anticipated expiration: 2031-07-30

Abstract

The utility model discloses a full-automatic curved surface screen printing machine. It includes the printing plate, press the slider and include slider, be located the slider's press device, press the device and include first cylinder, the head rod of being connected with first cylinder, the slider is arranged in to first cylinder, head rod fixedly connected with fly leaf, the fly leaf is connected with the stamp-pad ink pipe that runs through upper and lower surface, the fly leaf is connected with two connecting sleeve boards, the connecting sleeve board other end is connected with respectively with printing plate sliding connection's push pedal, the scraper blade, the stamp-pad ink pipe is located between push pedal and the scraper blade, first cylinder is located the one end that the fly leaf is close to the push pedal, the printing plate below is connected with the printing device, the printing plate lower surface is equipped with the stoving lamp towards the printing device, the printing device below is equipped with conveyor, the printing device is connected with the baffle with conveyor roll connection. The utility model has the beneficial effects that: the curved surface object to be printed is quickly positioned, and the working efficiency is high.

Description

Full-automatic curved surface screen printing machine

Technical Field

The utility model relates to the technical field of automatic printing equipment, in particular to a full-automatic curved surface screen printing machine.

Background

The screen printing machine is a machine for printing by using screen printing plate, belonging to a kind of printing machine. Screen printing is widely used because of its advantages of wide application, good quality, low cost, etc. At present, some automatic screen printing devices also appear in screen printing devices, but most of the screen printing devices are complex in structure and have high technical requirements on debugging personnel. In addition, some screen printers are specially used for printing curved surfaces, such as bucket-shaped objects like buckets and paint buckets, and the curved surface screen printers are required to be used when patterns or characters are printed on the whole bodies of the objects. But current curved surface screen printing machine can't fix a position the stock fast when fixing a position curved surface stock, and generally places the stock below the screen printing plate through manual and print, and work efficiency is low, and personnel intensity of labour is big.

SUMMERY OF THE UTILITY MODEL

The utility model provides a full-automatic curved surface screen printing machine which can quickly position a printing stock, has high working efficiency and small labor intensity of personnel, and aims to overcome the defects that the printing stock cannot be quickly positioned when a curved surface is printed in the prior art, the working efficiency is low and the labor intensity of the personnel is high.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a full-automatic curved surface screen printing machine comprises a pressing sliding device and a printing plate, wherein the pressing sliding device is positioned above the printing plate and is in sliding connection with the printing plate, the pressing sliding device comprises a pressing device and a sliding device, the pressing device is positioned in the sliding device and is hinged with the sliding device, the pressing device comprises a first air cylinder, a first connecting rod, a movable plate, connecting sleeve plates, a push plate and a scraper, the first air cylinder is arranged on the sliding device and is connected with one end of the first connecting rod, the other end of the first connecting rod is fixedly connected with the movable plate, the movable plate is connected with printing ink tubes penetrating through the upper surface and the lower surface, the connecting sleeve plates are two, the movable plate is fixedly connected with one end of the connecting sleeve plates, the other end of one connecting sleeve plate is connected with the push plate, and the other end of the other connecting sleeve plate is connected with the scraper, the improved printing press comprises a pressing plate, a scraping plate, a printing ink pipe, a first cylinder, a drying lamp, a conveying device, a baffle plate and a printing plate, wherein the pressing plate and the scraping plate are connected in a sliding mode, the printing ink pipe is located between the pressing plate and the scraping plate, the first cylinder is located at one end, close to the pressing plate, of the movable plate, the printing plate is connected with the printing device below, the drying lamp is arranged on the lower surface of the printing plate and faces the printing device, the conveying device is arranged below the printing device, the printing device is connected with the baffle plate, and the baffle plate is connected with the conveying device in a rolling mode.

When a curved surface object needs to be printed, the curved surface object is placed on the printing device through the mechanical handle, the first cylinder drives the first connecting rod to move up and down, and therefore the first connecting rod drives the movable plate to move up and down, and the two connecting sleeve plates connected with the movable plate move up and down. On printing ink stayed the printing plate from the printing ink pipe, the push pedal contacted with the printing plate when connecting the lagging downward movement, the scraper blade breaks away from the contact with the printing plate, under slider's mating reaction, drives the push pedal and slides along the printing plate. When connecting the lagging upward movement, the push pedal breaks away from with the contact of printing plate, and the scraper blade contacts with printing plate, and the cooperation slider scrapes printing ink to initial position direction and gets to the realization is to the printing of curved surface object. The curved surface object after the printing is accomplished is shone by the stoving lamp and can be ensured the curved surface object surface rapid draing after the printing, avoids the curved surface object surface after the printing to be scraped the flower, and the curved surface object after the printing is accomplished by the drying is transported away from the conveyor of printing device below, places the location to the curved surface object on printing device promptly through the mechanical handle curved surface object, and personnel's operation is few in the whole course of the work, has reduced personnel intensity of labour, and work efficiency is high.

As preferred, slider includes second cylinder, second connecting rod, fixed frame, connecting seat, connecting axle, the one end of second connecting rod is connected to the second cylinder, the other end and the fixed frame external fixed surface of second connecting rod are connected, the fly leaf is located fixed frame, the fly leaf passes through the connecting axle and is articulated with fixed frame, connecting seat one end and fixed frame up end fixed connection, fixed frame top and be connected with first cylinder are arranged in to the other end of connecting seat. The connecting seat is used for placing first cylinder, and is articulated through fly leaf and fixed frame to the drive of first cylinder is down the movable plate, upward movement, and reciprocating motion about the cooperation second cylinder drives the second connecting rod, and reciprocating motion about the second connecting rod drives fixed frame, thereby realizes the printing to printing plate below curved surface object.

Preferably, the cross-sectional shape of the connecting seat is L-shaped, one end of a vertical section of the connecting seat is fixedly connected with the upper end face of the fixing frame, the other end of the vertical section of the connecting seat is fixedly connected with one end of a transverse section of the connecting seat, the other end of the transverse section of the connecting seat is arranged above the fixing frame, the first air cylinder is connected with the upper surface of the transverse section of the connecting seat, the connecting hole penetrating through the upper surface and the lower surface of the transverse section of the connecting seat is formed in the connecting seat, and the other end of the first connecting rod is fixedly connected with the upper surface of the movable plate after penetrating through the connecting hole. The connecting hole is used for downwards giving the head rod, upward movement provides the space, connecting seat and first cylinder are connected, the vertical section one end of connecting seat and the up end fixed connection of fixed frame, thereby when reciprocating motion about the second cylinder drives the second connecting rod, the first cylinder that is located on the connecting seat can be along with reciprocating motion about the same place, the push pedal that the cooperation first cylinder drove, the slip of scraper blade and printing plate, thereby realize the printing to the curved surface object, moreover, the steam generator is simple in structure, and is convenient for operate.

Preferably, the printing plate comprises a printing frame, a silk screen and a plurality of fastening screws, the silk screen is located inside the printing frame, the silk screen is in threaded connection with the printing frame through the fastening screws, the silk screen is in sliding connection with the push plate and the scraper respectively, the cross sections of one ends of the push plate and the scraper, which are in contact with the silk screen, are both arc-shaped, and the silk screen corresponds to the printing ink tube. The silk screen is located inside the printing frame, avoids influencing operational environment from the printing ink spill that flows out in the seal ink pipe, simultaneously because the viscidity of printing ink, the printing frame can play the effect of the scope of restriction printing ink motion. The silk screen is the arc with push pedal, scraper blade sliding connection and push pedal, the one end cross sectional shape that the scraper blade contacted with the silk screen respectively to when first cylinder drives the head rod and reciprocates, the lower extreme of push pedal, scraper blade can contact with the silk screen, cooperation second cylinder and second connecting rod, connecting seat can realize the sliding connection of the lower extreme of push pedal, scraper blade and silk screen, the arc can avoid the damage of slip in-process to the silk screen simultaneously, the life of extension silk screen. The screen is screwed to the printing frame by means of the fastening screws, which facilitates the replacement of a new screen when the screen is damaged or when a new printed pattern is to be replaced.

Preferably, the printing device comprises two lifting devices and two supporting devices, the printing plate and the supporting devices are arranged between the two baffles, the lifting devices are positioned on the outer side of one of the baffles, and the lifting devices penetrate through the baffles and then are connected with the supporting devices. Placing curved surface object on strutting arrangement through the mechanical handle, under elevating gear's effect, elevating gear drives strutting arrangement rebound to curved surface object on the strutting arrangement and the lower surface contact of printing plate, under the effect of first cylinder and second cylinder, push pedal and scraper blade and printing plate sliding connection realize the printing to curved surface object. The curved surface object after the printing is finished moves downwards under the driving of the lifting device, and the curved surface object is conveyed from the conveying device below the supporting device and enters the next procedure for packaging. The lifting device is connected with the supporting device, and the operation is carried out through mechanical automation, so that the labor intensity of personnel is reduced, and the working efficiency is improved.

Preferably, the lifting device comprises a third cylinder, a first telescopic rod and a sliding plate, the sliding plate is U-shaped, the third cylinder is connected with one end of the first telescopic rod, a contact block is arranged at the other end of the first telescopic rod, the other end of the first telescopic rod is fixedly connected with the lower surface of the contact block, the upper surface of the contact block is fixedly connected with the lower surface of the bottom end of the sliding plate, the opening end of the sliding plate is arranged above the conveying device in a suspended mode, and the opening end of the sliding plate is fixedly connected with the supporting device after penetrating through the baffle plate. The third cylinder drives first telescopic link and reciprocates to first telescopic link drives the slide and reciprocates, and the contact block that is equipped with makes the area of contact between first telescopic link and the slide increase, thereby can ensure that the connection between first telescopic link and the slide is more firm, ensures with slide fixed connection's strutting arrangement when supporting curved surface object and printing plate lower surface contact, is favorable to the printing to the curved surface object.

Preferably, the baffle that the slide passed the connection is equipped with the dog hole that runs through front and back surface, dog hole and slide sliding connection, the baffle is equipped with perpendicular groove, cross slot, perpendicular groove and cross slot mutually perpendicular, strutting arrangement has two, and two strutting arrangement use the axis of slide as central symmetry distribution, perpendicular groove, cross slot all with strutting arrangement sliding connection. The stop block hole is used for providing a space for the sliding plate to move up and down under the action of the first telescopic rod, the vertical groove is connected with the supporting device in a sliding mode, the supporting device is driven to move up and down when the sliding plate moves up and down, the transverse groove is connected with the supporting device in a sliding mode, the curved surface object after printing is guaranteed to be capable of falling into the conveying device and conveyed to the next process by the conveying device, personnel operation is reduced, and working efficiency is higher.

As preferred, strutting arrangement includes fourth cylinder, second telescopic link, support column, spliced pole, the open end fixed connection of fourth cylinder and slide, the one end of second telescopic link is connected to the fourth cylinder, the other end of second telescopic link and the lateral wall fixed connection of support column, support column both ends face and spliced pole fixed connection, the spliced pole respectively with erect groove, horizontal groove sliding connection, the stoving lamp is towards between two support columns, the support column lateral wall is connected with the limiting plate, the lateral wall fixed connection of limiting plate one end and support column, the slope of the limiting plate other end is down and unsettled. Fourth cylinder and slide fixed connection to the slide can drive the fourth cylinder when reciprocating, makes the support column that the fourth cylinder is connected through the second telescopic link reciprocate, directly places the support column to the curved surface object that needs carry out the printing on, reciprocating of cooperation support column can fix a position curved surface object fast, thereby accomplishes the printing to curved surface object, and the stoving lamp carries out surperficial fast drying to the curved surface object after the printing. The support column that the fourth cylinder and the telescopic rod of second are connected makes and is connected with the second telescopic rod can reciprocating motion, cooperates the sliding connection of spliced pole and horizontal groove to curved surface object after the printing is accomplished can be followed and fall into conveyor through the limiting plate between two support columns, is delivered to next process by conveyor, reduces manual operation, and work efficiency is high.

Preferably, conveyor includes a plurality of rolling, chain, rolling is connected through the chain, rolling and baffle rolling connection. Through the connection of rolling jade and chain, the external motor of cooperation drives the roll of rolling jade to carry the curved surface object that the printing that falls from the support column was accomplished next process, reduced personnel's operation, be favorable to work efficiency's improvement.

The utility model has the beneficial effects that: the structure is simple and the operation is convenient; the service life of the silk screen is prolonged, and the silk screen is convenient to replace with a new silk screen; the curved surface object that needs the printing is fixed a position fast, and the curved surface object after the printing is accomplished is directly carried next process by conveyor, and manual operation is few, has improved work efficiency.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a top view of the push slide of FIG. 1;

FIG. 3 is a top view of the printing plate of FIG. 1;

FIG. 4 is a left side view of the printing apparatus of FIG. 1;

FIG. 5 is a top view of the printing apparatus of FIG. 1;

fig. 6 is a top view of the limiting plate in fig. 1.

In the figure: 1. the automatic printing device comprises a pressing sliding device, 11 pressing devices, 111 first air cylinders, 112 first connecting rods, 113 movable plates, 1131 printing ink tubes, 114 connecting sleeve plates, 115 push plates, 116 scraping plates, 12 sliding devices, 121 second air cylinders, 122 second connecting rods, 123 fixing frames, 124 connecting seats, 1241 connecting holes and 125 connecting shafts; 2, printing plate, 21, printing frame, 22, silk screen, 23, fastening screw and 24, drying lamp; 3, a printing device, 31, a baffle plate, 311, a baffle block hole, 312, a vertical groove, 313, a transverse groove; 4, a conveying device, 41 rolling roller and 42 chain; 5, a lifting device, 51, a third cylinder, 52, a first telescopic rod, 521, a contact block and 53, a sliding plate; 6, a supporting device, 61, a fourth cylinder, 62, a second telescopic rod, 63, a supporting column, 64, a connecting column and 65, a limiting plate; a curved object.

Detailed Description

The utility model is further described with reference to the following figures and detailed description.

Example 1:

as shown in fig. 1, a full-automatic curved screen printing machine includes a pressing slider 1 and a printing plate 2, the pressing slider 1 is located above the printing plate 2 and is slidably connected to the printing plate 2, the pressing slider 1 includes a pressing device 11 and a sliding device 12, the pressing device 11 is located in the sliding device 12 and is hinged to the sliding device 12, the pressing device 11 includes a first cylinder 111, a first connecting rod 112, a movable plate 113, a connecting sleeve plate 114, a push plate 115 and a scraper 116, the first cylinder 111 is located on the sliding device 12, the first cylinder 111 is connected to one end of the first connecting rod 112, the other end of the first connecting rod 112 is fixedly connected to the movable plate 113, the movable plate 113 is connected to an ink tube 1131 penetrating through upper and lower surfaces, the connecting sleeve plate 114 has two, the movable plate 113 is fixedly connected to one end of the connecting sleeve plate 114, the other end of one of the connecting sleeve plate 114 is connected to the push plate 115, the other end of the other connecting sleeve plate 114 is connected with the scraper 116, the push plate 115 and the scraper 116 are both connected with the printing plate 2 in a sliding mode, the printing ink pipe 1131 is located between the push plate 115 and the scraper 116, the first air cylinder 111 is located at one end, close to the push plate 115, of the movable plate 113, the printing plate 2 is connected with the printing device 3 below, the drying lamp 24 is arranged on the lower surface of the printing plate 2, the drying lamp 24 faces the printing device 3, the conveying device 4 is arranged below the printing device 3, the printing device 3 is connected with the baffle plate 31, and the baffle plate 31 is connected with the conveying device 4 in a rolling mode.

As shown in fig. 1 and 2, the sliding device 12 includes a second cylinder 121, a second connecting rod 122, a fixing frame 123, a connecting seat 124, and a connecting shaft 125, wherein the second cylinder 121 is connected to one end of the second connecting rod 122, the other end of the second connecting rod 122 is fixedly connected to an outer surface of the fixing frame 123, the movable plate 113 is located in the fixing frame 123, the movable plate 113 is hinged to the fixing frame 123 through the connecting shaft 125, one end of the connecting seat 124 is fixedly connected to an upper end surface of the fixing frame 123, and the other end of the connecting seat 124 is disposed above the fixing frame 123 and connected to the first cylinder 111. The cross-sectional shape of connecting seat 124 is L shape, the perpendicular section one end of connecting seat 124 and the up end fixed connection of fixed frame 123, the perpendicular section other end of connecting seat 124 and the horizontal section one end fixed connection of connecting seat 124, the horizontal section other end of connecting seat 124 is arranged in fixed frame 123 top, first cylinder 111 and the horizontal section upper surface connection of connecting seat 124, be equipped with the connecting hole 1241 that runs through the horizontal section upper and lower surface of connecting seat 124 on the connecting seat 124, the other end of first connecting rod 112 passes behind connecting hole 1241 and is connected with fixed surface on the fly leaf 113.

As shown in fig. 1 and 3, the printing plate 2 includes a printing frame 21, a screen 22, and a plurality of fastening screws 23, the screen 22 is located inside the printing frame 21, the screen 22 is screwed to the printing frame 21 through the fastening screws 23, the screen 22 is slidably connected to the pushing plate 115 and the scraping plate 116, respectively, the cross-sectional shapes of the ends of the pushing plate 115 and the scraping plate 116 contacting the screen 22 are both arc-shaped, and the screen 22 corresponds to the printing ink tube 1131.

As shown in fig. 1 and 4, the printing device 3 includes two lifting devices 5 and two supporting devices 6, the printing plate 2 and the supporting devices 6 are disposed between the two lifting devices 31, the lifting device 5 is located outside one of the two lifting devices 31, and the lifting device 5 is connected to the supporting device 6 after passing through the two lifting devices 31.

As shown in fig. 4 and 5, the lifting device 5 includes a third cylinder 51, a first telescopic rod 52, and a sliding plate 53, the sliding plate 53 is U-shaped, the third cylinder 51 is connected to one end of the first telescopic rod 52, a contact block 521 is disposed at the other end of the first telescopic rod 52, the other end of the first telescopic rod 52 is fixedly connected to the lower surface of the contact block 521, the upper surface of the contact block 521 is fixedly connected to the lower surface of the bottom end of the sliding plate 53, the open end of the sliding plate 53 is suspended above the conveying device 4, and the open end of the sliding plate 53 is fixedly connected to the supporting device 6 after passing through the baffle 31.

As shown in fig. 1, 4 and 5, the sliding plate 53 is provided with a blocking hole 311 penetrating through the front and rear surfaces of the baffle plate 31 connected with the sliding plate 53, the blocking hole 311 is connected with the sliding plate 53 in a sliding manner, the baffle plate 31 is provided with a vertical groove 312 and a transverse groove 313, the vertical groove 312 is perpendicular to the transverse groove 313, two supporting devices 6 are provided, the two supporting devices 6 are symmetrically distributed by taking the central axis of the sliding plate 53 as the center, and the vertical groove 312 and the transverse groove 313 are both connected with the supporting devices 6 in a sliding manner.

As shown in fig. 5 and 6, the supporting device 6 includes a fourth cylinder 61, a second telescopic rod 62, a supporting column 63, a connecting column 64, the open end fixed connection of the fourth cylinder 61 and the sliding plate 53, the one end of the second telescopic rod 62 is connected to the fourth cylinder 61, the other end of the second telescopic rod 62 is fixedly connected with the side wall of the supporting column 63, two end faces of the supporting column 63 are fixedly connected with the connecting column 64, the connecting column 64 is respectively connected with the vertical groove 312, the transverse groove 313 is in sliding connection, the drying lamp 24 faces between the two supporting columns 63, the side wall of the supporting column 63 is connected with a limiting plate 65, one end of the limiting plate 65 is fixedly connected with the side wall of the supporting column 63, and the other end of the limiting plate 65 is inclined downwards and suspended.

As shown in fig. 1, the conveying device 4 includes a plurality of rolling rolls 41 and chains 42, the rolling rolls 41 are connected by the chains 42, and the rolling rolls 41 are connected by the rolling baffle plates 31.

The using method comprises the following steps: the method comprises the following steps: printing ink is put into the printing ink pipe 1131, the first cylinder 111 drives the first connecting rod 112, the movable plate 113, the connecting sleeve plate 114, the push plate 115 and the scraper 116 to move up and down, and the second cylinder 121 drives the second connecting rod 122, the fixed frame 123 and the movable plate 113 to move left and right in a reciprocating manner;

step two: the silk screen 22 is fixed in the printing frame 21 through a fastening screw 23, and the lower ends of the push plate 115 and the scraper 116 are connected with the printing plate 2 in a sliding way;

step three: the third cylinder 51 drives the first telescopic rod 52 and the sliding plate 53 to move up and down, the sliding plate 53 drives the fourth cylinder 61, the second telescopic rod 62, the supporting column 63 and the connecting column 64 to move up and down along the vertical groove 312, the curved surface object 7 to be printed is placed on the supporting column 63 of the supporting device 6, the upper surface of the curved surface object 7 is movably connected with the lower surface of the printing plate 2, and the printed curved surface object 7 drives the second telescopic rod 62, the supporting column 63 and the connecting column 64 to slide along the transverse groove 313 through the fourth cylinder 61 and falls into the conveying device 4 through the limiting plate 65;

step four: the rolling roller 41, the chain 42, and the external motor connected to the rolling roller 41 in the conveyor 4 are conveyed to the next process.

Claims

1. The full-automatic curved surface screen printing machine is characterized by comprising a pressing sliding device (1) and a printing plate (2), wherein the pressing sliding device (1) is positioned above the printing plate (2) and is in sliding connection with the printing plate (2), the pressing sliding device (1) comprises a pressing device (11) and a sliding device (12), the pressing device (11) is positioned in the sliding device (12) and is hinged to the sliding device (12), the pressing device (11) comprises a first air cylinder (111), a first connecting rod (112), a movable plate (113), a connecting sleeve plate (114), a push plate (115) and a scraper (116), the first air cylinder (111) is arranged on the sliding device (12), the first air cylinder (111) is connected with one end of the first connecting rod (112), the other end of the first connecting rod (112) is fixedly connected with the movable plate (113), the movable plate (113) is connected with a printing ink tube (1131) penetrating through the upper surface and the lower surface, connecting sleeve board (114) has two, the one end fixed connection of fly leaf (113) and connecting sleeve board (114), push pedal (115) is connected to the other end of one of them connecting sleeve board (114), and scraper blade (116) is connected to the other end of another connecting sleeve board (114), push pedal (115), scraper blade (116) all with printing plate (2) sliding connection, printing ink pipe (1131) are located between push pedal (115) and scraper blade (116), first cylinder (111) are located fly leaf (113) and are close to the one end of push pedal (115), printing plate (2) below is connected with printing device (3), printing plate (2) lower surface is equipped with stoving lamp (24), stoving lamp (24) are towards printing device (3), printing device (3) below is equipped with conveyor (4), printing device (3) are connected with baffle (31), the baffle (31) is connected with the conveying device (4) in a rolling way.

2. The full-automatic curved screen printing machine according to claim 1, wherein the sliding device (12) comprises a second cylinder (121), a second connecting rod (122), a fixing frame (123), a connecting seat (124) and a connecting shaft (125), the second cylinder (121) is connected with one end of the second connecting rod (122), the other end of the second connecting rod (122) is fixedly connected with the outer surface of the fixing frame (123), the movable plate (113) is located in the fixing frame (123), the movable plate (113) is hinged to the fixing frame (123) through the connecting shaft (125), one end of the connecting seat (124) is fixedly connected with the upper end face of the fixing frame (123), and the other end of the connecting seat (124) is arranged above the fixing frame (123) and connected with the first cylinder (111).

3. The full-automatic curved screen printing machine according to claim 2, wherein the cross-sectional shape of the connecting seat (124) is L-shaped, one end of the vertical section of the connecting seat (124) is fixedly connected with the upper end surface of the fixed frame (123), the other end of the vertical section of the connecting seat (124) is fixedly connected with one end of the horizontal section of the connecting seat (124), the other end of the horizontal section of the connecting seat (124) is arranged above the fixed frame (123), the first cylinder (111) is connected with the upper surface of the horizontal section of the connecting seat (124), a connecting hole (1241) penetrating through the upper and lower surfaces of the horizontal section of the connecting seat (124) is formed in the connecting seat (124), and the other end of the first connecting rod (112) is fixedly connected with the upper surface of the movable plate (113) after passing through the connecting hole (1241).

4. The full-automatic curved screen printing machine according to claim 1, wherein the printing plate (2) comprises a printing frame (21), a screen (22) and a plurality of fastening screws (23), the screen (22) is located inside the printing frame (21), the screen (22) is in threaded connection with the printing frame (21) through the fastening screws (23), the screen (22) is respectively in sliding connection with the push plate (115) and the scraper (116), the cross-sectional shapes of the ends of the push plate (115) and the scraper (116) which are in contact with the screen (22) are both arc-shaped, and the screen (22) corresponds to the printing ink tube (1131).

5. A machine as claimed in claim 1, wherein said printing group (3) comprises two lifting devices (5) and two support devices (6), said printing plates (2) and said support devices (6) being arranged between said two plates (31), said lifting devices (5) being arranged outside one of said plates (31), said lifting devices (5) being connected to said support devices (6) after having passed through said plate (31).

6. The full-automatic curved screen printing machine according to claim 5, wherein the lifting device (5) comprises a third cylinder (51), a first telescopic rod (52) and a sliding plate (53), the sliding plate (53) is U-shaped, the third cylinder (51) is connected with one end of the first telescopic rod (52), a contact block (521) is arranged at the other end of the first telescopic rod (52), the other end of the first telescopic rod (52) is fixedly connected with the lower surface of the contact block (521), the upper surface of the contact block (521) is fixedly connected with the lower surface of the bottom end of the sliding plate (53), the open end of the sliding plate (53) is suspended above the conveying device (4), and the open end of the sliding plate (53) is fixedly connected with the supporting device (6) after passing through the baffle plate (31).

7. The full-automatic curved screen printing machine according to claim 6, wherein the sliding plate (53) is provided with a block hole (311) penetrating through the front and rear surfaces through the connected baffle plate (31), the block hole (311) is slidably connected with the sliding plate (53), the baffle plate (31) is provided with a vertical groove (312) and a transverse groove (313), the vertical groove (312) and the transverse groove (313) are perpendicular to each other, the two supporting devices (6) are provided, the two supporting devices (6) are symmetrically distributed by taking the central axis of the sliding plate (53) as the center, and the vertical groove (312) and the transverse groove (313) are both slidably connected with the supporting devices (6).

8. The full-automatic curved screen printing machine according to claim 7, wherein the supporting device (6) comprises a fourth cylinder (61), a second telescopic rod (62), a supporting column (63) and a connecting column (64), the fourth cylinder (61) is fixedly connected with the opening end of the sliding plate (53), the fourth cylinder (61) is connected with one end of the second telescopic rod (62), the other end of the second telescopic rod (62) is fixedly connected with the side wall of the supporting column (63), the two end faces of the supporting column (63) are fixedly connected with the connecting column (64), the connecting column (64) is respectively connected with a vertical groove (312) and a horizontal groove (313) in a sliding manner, the drying lamp (24) faces between the two supporting columns (63), the side wall of the supporting column (63) is connected with a limiting plate (65), one end of the limiting plate (65) is fixedly connected with the side wall of the supporting column (63), the other end of the limiting plate (65) inclines downwards and is suspended in the air.

9. The full-automatic curved screen printing machine according to claim 5, wherein the conveying device (4) comprises a plurality of rolling components (41) and chains (42), the rolling components (41) are connected through the chains (42), and the rolling components (41) are connected with the baffle plates (31) in a rolling manner.