阅读说明：本技术 一种自动化印刷设备及印刷方法 (Automatic printing equipment and printing method ) 是由 吴铁非 于 2021-06-16 设计创作，主要内容包括：本发明公开了一种自动化印刷设备及印刷方法,涉及印刷设备技术领域,包括用于输送待印刷板的输送带,以及用于调节顶板高度的伸缩驱动源,所述顶板的下表面设置有用于带动喷头螺旋移动的驱动机构,还包括传动机构,通过所述喷头螺旋移动,并在所述传动机构的作用下,带动所述喷头交替式喷胶和喷粉。本发明具备了通过转动驱动源的正反转动,即可自动实现大面积均匀喷胶和大面积均匀喷粉末,以及对胶水和粉末扰动的效果,解决了传统的粉末印刷通过人工先后拿捏胶枪和粉末枪进行喷胶与喷粉,其粉末印刷效率低下,浪费人力的问题。(The invention discloses automatic printing equipment and a printing method, and relates to the technical field of printing equipment. The invention has the advantages that the glue and powder can be uniformly sprayed in a large area and the powder can be uniformly sprayed in a large area automatically by rotating the driving source forward and backward, and the glue and powder can be disturbed, thereby solving the problems of low efficiency and labor waste of powder printing of the traditional powder printing by manually and sequentially holding the glue gun and the powder gun for glue spraying and powder spraying.)

1. An automated printing apparatus including a conveying belt (2) for conveying a plate (1) to be printed, and a telescopic drive source (4) for adjusting the height of a top plate (3), characterized in that: the lower surface of the top plate (3) is provided with a driving mechanism for driving the spray head (5) to spirally move;

the device also comprises a transmission mechanism, wherein the spray head (5) moves spirally, and the spray head (5) is driven to alternately spray glue and powder under the action of the transmission mechanism.

2. The automated printing apparatus of claim 1, wherein: the driving mechanism comprises a rotating driving source (6), the rotating driving source (6) is arranged on the lower surface of the top plate (3), a rotating part of the rotating driving source (6) is fixedly connected with a rotating plate (7), the lower surface of the top plate (3) is fixedly connected with a support (8), the surface of the support (8) is fixedly connected with a fixed plate (9), a spiral groove (10) is formed in the surface of the fixed plate (9), the fixed plate (9) is slidably connected with a sliding column (11) through the spiral groove (10), the spray head (5) is fixedly connected to the bottom of the sliding column (11), a sliding groove (12) is formed in the lower surface of the rotating plate (7), the top of the sliding column (11) is slidably connected in the groove of the sliding groove (12), and the surface of the support (8) is detachably connected with a printing screen plate (13), the upper surface of the printing screen (13) is attached to the nozzle of the spray head (5).

3. The automated printing apparatus of claim 2, wherein: the transmission mechanism comprises a glue storage box (14) and a powder storage box (15), the glue storage box (14) and the powder storage box (15) are respectively and fixedly connected with the two sides of the rotating plate (7), the lower surface of the glue storage box (14) is fixedly connected with a first piston cylinder (16), the lower surface of the powder storage box (15) is fixedly connected with a second piston cylinder (17), the inner wall of the first piston cylinder (16) is connected with a first piston (18) in a sliding way, the inner wall of the second piston cylinder (17) is connected with a second piston (19) in a sliding way, the opposite sides of the first piston (18) and the second piston (19) are fixedly connected with a connecting rod (20), openings for the connecting rods (20) to penetrate out and slide are formed in the opposite sides of the first piston cylinder (16) and the second piston cylinder (17), and the opposite sides of the two connecting rods (20) are fixedly connected with the surface of the sliding column (11);

a first rubber passing pipe (21) is fixedly communicated between the rubber storage box (14) and the first piston cylinder (16), a second rubber passing pipe (22) is fixedly communicated with the surface of the first piston cylinder (16), a third rubber passing pipe (23) is inserted into the end part of the second rubber passing pipe (22), a first rubber passing channel (24) fixedly communicated with the third rubber passing pipe (23) is formed in the inner wall of the sliding column (11), the second rubber passing channel (24) is communicated with the spray head (5), a first powder passing pipe (25) is fixedly communicated between the powder storage box (15) and the second piston cylinder (17), a second powder passing pipe (26) is fixedly communicated with the surface of the second piston cylinder (17), a third powder passing pipe (27) is inserted into the end part of the second powder passing pipe (26), and a first powder passing channel (28) fixedly communicated with the third powder passing pipe (27) is formed in the inner wall of the sliding column (11), the powder passing channel (28) is communicated with the spray head (5);

and the first rubber passing pipe (21), the second rubber passing pipe (22), the first powder passing pipe (25) and the second powder passing pipe (26) are respectively provided with a one-way valve (29).

4. The automated printing apparatus of claim 3, wherein: the powder and glue stirring device further comprises a stirring mechanism for stirring the powder and the glue in the glue storage box (14) and the powder storage box (15).

5. The automated printing apparatus of claim 4, wherein: disturbance mechanism includes support column (30), support column (30) fixed connection be in the lower surface of roof (3), the lower surface fixedly connected with conical gear (31) of support column (30), deposit gluey case (14) with the opposite side of depositing powder case (15) has all been seted up the commentaries on classics hole, deposit gluey case (14) with deposit powder case (15) and all be connected with pivot (32), two through changeing the hole rotation the equal fixedly connected with disturbance pole (33) in surface and conical gear two (34) of pivot (32), two conical gear two (34) all with conical gear (31) mesh mutually.

6. The automated printing apparatus of any of claims 1, 2, 3, 4, or 5, wherein: the telescopic driving source (4) is an electric push rod.

7. An automated printing apparatus according to any one of claims 2, 3, 4 or 5, wherein: the rotary driving source (6) is a motor.

8. An automated printing apparatus according to any one of claims 2, 3, 4 or 5, wherein: the printing screen (13) is connected to the surface of the bracket (8) through bolts or buckles.

9. A printing method of an automated printing apparatus according to claim 3, comprising the steps of:

s1: during printing, the printing plate (1) to be printed is conveyed to the position below the printing screen (13) through the conveying belt (2) and then is stopped;

s2: starting the driving mechanism, driving the spray head (5) to spirally move under the action of the transmission mechanism, and alternately spraying glue and spraying powder on the spray head (5) in the spiral moving process;

s3: after the powder printing is completed, the driving mechanism is closed, and the next printing plate (1) to be printed is conveyed to the position below the printing screen plate (13) by the conveying belt (2) and then stopped, and the step of S2 is repeated.

Technical Field

The invention relates to the technical field of printing equipment, in particular to automatic printing equipment and a printing method.

Background

Compared with the existing printing technology, the method can only print patterns or colorful patterns, and powder printing can add colorful powder such as gold powder, silver powder and the like to the patterns while printing the patterns.

However, in the traditional powder printing, the glue gun and the powder gun are manually and successively held for glue spraying and powder spraying, so that the powder printing efficiency is low, and the manpower is wasted.

Disclosure of Invention

The invention aims to provide automatic printing equipment and a printing method, which can automatically realize the effects of uniformly spraying glue and powder in a large area and disturbing the glue and the powder by rotating the driving source in a forward and reverse direction, and solve the problems of low powder printing efficiency and labor waste caused by the fact that the glue gun and the powder gun are manually and successively held for glue spraying and powder spraying in the traditional powder printing.

In order to achieve the purpose, the invention provides the following technical scheme: an automatic printing device comprises a conveying belt for conveying a plate to be printed and a telescopic driving source for adjusting the height of a top plate, wherein a driving mechanism for driving a spray head to move spirally is arranged on the lower surface of the top plate;

the sprayer is driven to alternately spray glue and powder by the aid of the transmission mechanism through spiral movement of the sprayer.

Preferably, actuating mechanism is including rotating the driving source, it sets up to rotate the driving source the lower surface of roof, the rotation portion fixedly connected with who rotates the driving source changes the board, the lower fixed surface of roof is connected with the support, the fixed surface fixedly connected with fixed plate of support, the helicla flute has been seted up on the surface of fixed plate, the fixed plate passes through helicla flute sliding connection has the slip post, shower nozzle fixed connection is in the bottom of slip post, the lower surface of changeing the board has seted up the spout, the top sliding connection of slip post is in the inslot of spout, the detachable printing screen board that is connected with in surface of support, the upper surface of printing screen board with the spout of shower nozzle is laminated mutually.

Preferably, the transmission mechanism comprises a glue storage box and a powder storage box, the glue storage box and the powder storage box are respectively and fixedly connected to two sides of the rotating plate, a first piston cylinder is fixedly connected to the lower surface of the glue storage box, a second piston cylinder is fixedly connected to the lower surface of the powder storage box, a first piston is slidably connected to the inner wall of the first piston cylinder, a second piston is slidably connected to the inner wall of the second piston cylinder, connecting rods are fixedly connected to opposite sides of the first piston and the second piston, openings for the connecting rods to penetrate out and slide are formed in opposite sides of the first piston cylinder and the second piston cylinder, and opposite sides of the two connecting rods are fixedly connected with the surface of the sliding column;

a first rubber passing pipe is fixedly communicated between the rubber storage box and the first piston cylinder, a second rubber passing pipe is fixedly communicated with the surface of the first piston cylinder, a third rubber passing pipe is inserted into the end part of the second rubber passing pipe, a rubber passing channel fixedly communicated with the third rubber passing pipe is formed in the inner wall of the sliding column, the rubber passing channel is communicated with the spray head, a first powder passing pipe is fixedly communicated between the powder storage box and the second piston cylinder, a second powder passing pipe is fixedly communicated with the surface of the second piston cylinder, a third powder passing pipe is inserted into the end part of the second powder passing pipe, a third powder passing channel fixedly communicated with the third powder passing pipe is formed in the inner wall of the sliding column, and the powder passing channel is communicated with the spray head;

and the first rubber passing pipe, the second rubber passing pipe, the first powder passing pipe and the second powder passing pipe are respectively provided with a one-way valve.

Preferably, the powder storage box further comprises a disturbing mechanism for disturbing the powder and the glue in the glue storage box and the powder storage box.

Preferably, the disturbance mechanism includes the support column, support column fixed connection be in the lower surface of roof, the lower fixed surface of support column is connected with bevel gear one, deposit gluey case with the opposite side of depositing the powder case has all been seted up changes the hole, deposit gluey case with deposit the powder case and all be connected with the pivot through changeing the hole rotation, two the equal fixedly connected with disturbance pole in surface and bevel gear two of pivot, two bevel gear two all with bevel gear one meshes mutually.

Preferably, the telescopic driving source is an electric push rod.

Preferably, the rotation driving source is a motor.

Preferably, the printing screen is attached to the surface of the bracket by bolts or snaps.

The present invention provides a printing method comprising: a printing method of an automated printing apparatus, comprising the steps of:

s1: during printing, the printing plate to be printed is conveyed to the lower part of the printing screen plate through the conveying belt and then is stopped;

s2: starting the driving mechanism, driving the spray head to spirally move under the action of the transmission mechanism, and alternately spraying glue and spraying powder by the spray head in the spiral moving process;

s3: after the powder printing is completed, the driving mechanism is turned off, and the next printing plate to be printed is conveyed to the lower side of the printing screen plate by the conveying belt and then stopped, and then the above step S2 is repeated.

Compared with the prior art, the invention has the following beneficial effects:

firstly, the rotating plate is driven to rotate by the rotating driving source, and the spray head can be driven to move from inside to outside along the spiral direction of the spiral groove by the rotation of the rotating plate and the sliding fit between the sliding column and the sliding groove and the spiral groove, so that the glue and the powder sprayed by the spray head can be uniformly dispersed on the surface of the plate to be printed.

The invention drives the first piston and the second piston to move towards the piston cylinder in a direction and is limited by the flow directions of the four one-way valves by rotating the forward rotation of the driving source, so that the glue in the first piston cylinder flows into the spray head from the second glue passing pipe, the third glue passing pipe and the glue passing channel and is sprayed out from the spray head in the spiral moving process, the uniform glue spraying effect on the surface of the to-be-printed board can be realized, and meanwhile, the powder in the powder storage box is discharged into the second piston cylinder from the first powder passing pipe so as to spray powder on the surface of the to-be-printed board subsequently.

Third, the invention drives the first piston and the second piston to move towards the second piston cylinder by the reverse rotation of the rotary driving source and limits the flow direction of the four one-way valves, so that the powder in the second piston cylinder is discharged into the spray head through the second powder passing pipe, the third powder passing pipe and the powder passing channel and is sprayed out by the spray head in the spiral moving process, the effect of uniformly spraying the powder on the surface of the plate to be printed can be realized, and meanwhile, the glue in the glue storage box is discharged into the first piston cylinder through the first glue passing pipe, so that the glue is sprayed to the surface of the plate to be printed next time.

In the process of rotating the transfer plate, the two rotating shafts are driven to rotate along with the transfer plate, the two rotating shafts rotate to drive the two conical gears II to revolve around the conical gear I as the center of a circle, the two conical gears II revolve and are meshed with the conical gear I and the conical gear II to drive the two rotating shafts to rotate, and the disturbance rod is driven to rotate through the rotation of the two rotating shafts, so that glue and powder in the glue storage box and the powder storage box are continuously disturbed, and the phenomenon that the glue and the powder are solidified or stuck together and are difficult to spray is avoided.

In conclusion, the glue and powder can be uniformly sprayed in a large area and the disturbance effect on the glue and the powder can be automatically realized through the forward and backward rotation of the rotary driving source.

Drawings

FIG. 1 is a front view of the structure of the present invention;

FIG. 2 is a top view of the rotary drive source, the rotary plate, the fixed plate, the spiral groove, the sliding post and the sliding groove structure of the present invention;

FIG. 3 is a top view of the fixed plate, spiral groove and sliding post structure of the present invention;

FIG. 4 is a front view of the structure of the present invention;

FIG. 5 is a front view of the structure of the nozzle, the sliding column, the second rubber passing tube, the third rubber passing tube, the rubber passing channel, the second powder passing tube, the third powder passing tube and the powder passing channel.

In the figure: 1-to-be-printed board, 2-conveying belt, 3-top plate, 4-telescopic driving source, 5-spray head, 6-rotary driving source, 7-rotary plate, 8-bracket, 9-fixing plate, 10-spiral groove, 11-sliding column, 12-sliding groove, 13-printing screen plate, 14-glue storage box, 15-powder storage box, 16-piston cylinder I, 17-piston cylinder II, 18-piston I, 19-piston II, 20-connecting rod, 21-glue passing pipe I, 22-glue passing pipe II, 23-glue passing pipe III, 24-glue passing channel, 25-powder passing pipe I, 26-powder passing pipe II, 27-powder passing pipe III, 28-powder passing channel, 29-one-way valve, 30-supporting column, 31-bevel gear I, 32-rotating shaft, 33-disturbing rod and 34-bevel gear II.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 5, the present invention provides a technical solution: an automatic printing device comprises a conveying belt 2 for conveying a printing plate 1 to be printed, and a telescopic driving source 4 for adjusting the height of a top plate 3, wherein a driving mechanism for driving a nozzle 5 to spirally move is arranged on the lower surface of the top plate 3, the driving mechanism is further used for driving the nozzle 5 to alternately spray glue and spray powder through the spiral movement of the nozzle 5 and under the action of the driving mechanism, the printing plate 1 to be printed is conveyed to the lower part of a printing screen 13 through the conveying belt 2 and then stopped, the nozzle 5 is driven to move to a proper spraying height through the telescopic driving source 4 and then driven to spirally move through the driving mechanism and under the action of the driving mechanism, and in the spiral movement process, the nozzle 5 alternately sprays glue and powder, so that the effects of uniformly spraying glue and uniformly spraying powder in a large area can be automatically realized, powder printing is achieved.

Further, the driving mechanism comprises a rotation driving source 6, the rotation driving source 6 is arranged on the lower surface of the top plate 3, a rotation part of the rotation driving source 6 is fixedly connected with a rotation plate 7, the lower surface of the top plate 3 is fixedly connected with a support 8, the surface of the support 8 is fixedly connected with a fixing plate 9, a spiral groove 10 is formed in the surface of the fixing plate 9, the fixing plate 9 is slidably connected with a sliding column 11 through the spiral groove 10, the spray head 5 is fixedly connected to the bottom of the sliding column 11, the lower surface of the rotation plate 7 is provided with a sliding groove 12, the top of the sliding column 11 is slidably connected in the groove of the sliding groove 12, the surface of the support 8 is detachably connected with a printing screen plate 13, the upper surface of the printing screen plate 13 is attached to the nozzle of the spray head 5, and the rotation plate 7 is driven to rotate by the rotation driving source 6, through the rotation of the rotating plate 7 and through the sliding fit between the sliding column 11 and the sliding groove 12 and the spiral groove 10, the spray head 5 can be driven to move from inside to outside along the spiral direction of the spiral groove 10, so that the glue and the powder sprayed by the spray head can be uniformly dispersed on the surface of the printing plate 1 to be printed.

Further, the transmission mechanism comprises a glue storage box 14 and a powder storage box 15, the glue storage box 14 and the powder storage box 15 are respectively and fixedly connected to two sides of the rotating plate 7, a first piston cylinder 16 is fixedly connected to the lower surface of the glue storage box 14, a second piston cylinder 17 is fixedly connected to the lower surface of the powder storage box 15, a first piston 18 is slidably connected to the inner wall of the first piston cylinder 16, a second piston 19 is slidably connected to the inner wall of the second piston cylinder 17, connecting rods 20 are fixedly connected to opposite sides of the first piston 18 and the second piston 19, openings for the connecting rods 20 to penetrate out and slide are formed in opposite sides of the first piston cylinder 16 and the second piston cylinder 17, opposite sides of the two connecting rods 20 are fixedly connected to the surface of the sliding column 11, and a first rubber passing tube 21 is fixedly communicated between the glue storage box 14 and the first piston cylinder 16, the surface of the piston cylinder I16 is fixedly communicated with a rubber passing tube II 22, the end part of the rubber passing tube II 22 is inserted with a rubber passing tube III 23, the inner wall of the sliding column 11 is provided with a rubber passing channel 24 fixedly communicated with the rubber passing tube III 23, the rubber passing channel 24 is communicated with the spray head 5, the powder storage tank 15 and the piston cylinder II 17 are jointly and fixedly communicated with a powder passing tube I25, the surface of the piston cylinder II 17 is fixedly communicated with a powder passing tube II 26, the end part of the powder passing tube II 26 is inserted with a powder passing tube III 27, the inner wall of the sliding column 11 is provided with a powder passing channel 28 fixedly communicated with the powder passing tube III 27, the powder passing channel 28 is communicated with the spray head 5, the rubber passing tube I21, the rubber passing tube II 22, the powder passing tube I25 and the powder passing tube II 26 are all provided with a one-way valve 29, and the spray head 5 moves from inside to outside along the spiral direction of the spiral groove 10, the sliding column 11 moves towards the first piston cylinder 16 relative to the rotating plate 7, the first piston 18 and the second piston 19 are driven to move towards the first piston cylinder 16 by the sliding column 11 moving towards the first piston cylinder 16 relative to the rotating plate 7 and linkage of the two connecting rods 20, the first piston 18 and the second piston 19 both move towards the first piston cylinder 16 and are limited by flow directions of the four one-way valves 29, so that glue in the first piston cylinder 16 flows into the spray head 5 through the second rubber tube 22, the third rubber tube 23 and the rubber passage 24, and is sprayed out by the spray head 5 in the spiral moving process, a uniform glue spraying effect on the surface of the plate 1 to be printed can be achieved, and meanwhile, powder in the powder storage box 15 is discharged into the second piston cylinder 17 through the first powder passing tube 25 so as to spray powder on the surface of the plate 1 to be printed subsequently; when the sliding column 11 moves to the outermost end of the spiral groove 10, the rotary driving source 6 starts to rotate in reverse (when the number of the rotation cycles of the rotary driving source 6 is regulated in advance, the sliding column 11 moves to the outermost end of the spiral groove 10, the rotary driving source 6 starts to rotate in reverse), the rotary driving source 6 rotates in reverse, the first piston 18 and the second piston 19 can be driven to move towards the second piston cylinder 17, the first piston 18 and the second piston 19 both move towards the second piston cylinder 17 and are limited by the flow direction of the four one-way valves 29, so that the powder in the second piston cylinder 17 is discharged into the nozzle 5 from the second powder passing pipe 26, the third powder passing pipe 27 and the powder passing channel 28, and is sprayed out by the nozzle 5 in the spiral moving process, the effect of uniformly spraying the powder on the surface of the printing plate 1 to be treated can be realized, and meanwhile, the glue in the glue storage box 15 is discharged into the first piston cylinder 16 from the first rubber tube 21, so that spout glue to waiting printing plate 1 surface next time, to sum up, through the just reverse rotation of rotation driving source 6, can realize automatically that the large tracts of land is evenly spouted gluey and the effect that the powder was evenly spouted to large tracts of land, realized powder seal.

Further, the powder and glue stirring device further comprises a stirring mechanism for stirring the powder and the glue in the glue storage box 14 and the powder storage box 15.

Further, the disturbing mechanism comprises a supporting column 30, the supporting column 30 is fixedly connected to the lower surface of the top plate 3, the lower surface of the supporting column 30 is fixedly connected with a first conical gear 31, the opposite sides of the glue storage box 14 and the powder storage box 15 are both provided with rotary holes, the glue storage box 14 and the powder storage box 15 are both rotatably connected with a rotary shaft 32 through the rotary holes, the surfaces of the two rotary shafts 32 are both fixedly connected with a disturbing rod 33 and a second conical gear 34, the two second conical gears 34 are both meshed with the first conical gear 31, in the rotating process of the rotary plate 7, the two rotary shafts 32 are driven to rotate along with the rotary shafts, the two second conical gears 34 are driven to revolve around the first conical gear 31 through the rotation of the two rotary shafts 32, and the two conical gears 34 revolve around and pass through the meshing relationship between the first conical gear 31 and the second conical gear 34, the two rotating shafts 32 are driven to rotate, and the disturbing rod 33 is driven to rotate through the rotation of the two rotating shafts 32, so that the glue and the powder in the glue storage box 14 and the powder storage box 15 are continuously disturbed, and the phenomenon that the glue and the powder are solidified or stuck together and are difficult to spray is avoided.

Further, the telescopic driving source 4 is an electric push rod.

Further, the rotation drive source 6 is a motor.

Further, the printing screen 13 is connected to the surface of the support 8 through bolts or buckles, and the surface of the printing screen 13 is in a shape to be subjected to powder printing formed by a plurality of grids, so that the effect of replacing the powder printing shape is achieved by replacing the printing screen 13.

Referring to fig. 1 to 5, the present invention provides a printing method: a printing method of an automated printing apparatus, comprising the steps of:

s1: during printing, the printing plate 1 to be printed is conveyed to the lower part of the printing screen 13 through the conveying belt 2 and then is stopped;

s2: starting the driving mechanism, driving the spray head 5 to spirally move under the action of the transmission mechanism, and alternately spraying glue and spraying powder on the spray head 5 in the spiral moving process;

s3: after the powder printing is completed, the driving mechanism is turned off, and the next printing plate 1 to be printed is conveyed to below the printing screen 13 by the conveying belt 2 and then stopped, and the above-described step S2 is repeated.

The working principle is as follows: when the automatic printing equipment is used for printing, glue and powder are respectively put into a glue storage box 14 and a powder storage box 15, then a conveying belt 2 conveys a printing plate 1 to be printed to the position below a printing screen 13 and stops, then a telescopic driving source 4 drives a spray head 5 to move to a proper spraying height, then a rotating driving source 6 drives a rotating plate 7 to rotate, the rotating plate 7 rotates and is in sliding fit with a sliding column 11, a sliding chute 12 and a spiral groove 10, the spray head 5 can be driven to move from inside to outside along the spiral direction of the spiral groove 10, and the glue and the powder sprayed by the spray head can be uniformly dispersed on the surface of the printing plate 1;

in the process that the spray head 5 moves from inside to outside along the spiral direction of the spiral groove 10, the sliding column 11 moves towards the first piston cylinder 16 direction relative to the rotary plate 7, the first piston 18 and the second piston 19 are driven to move towards the first piston cylinder 16 direction through the movement of the sliding column 11 towards the first piston cylinder 16 direction relative to the rotary plate 7 and the linkage of the two connecting rods 20, the first piston 18 and the second piston 19 both move towards the first piston cylinder 16 direction and are limited by the flow direction of the four one-way valves 29, so that glue in the first piston cylinder 16 flows into the spray head 5 through the second rubber tube 22, the third rubber tube 23 and the rubber channel 24, and is sprayed out by the spray head 5 in the spiral moving process, and then the uniform glue spraying effect on the surface of the printing plate 1 can be realized, and meanwhile, powder in the powder storage box 15 is discharged into the second piston cylinder 17 through the first powder passing tube 25, so that powder is sprayed onto the surface of the printing plate 1 in the subsequent process;

when the sliding column 11 moves to the outermost end of the spiral groove 10, the rotary driving source 6 starts to rotate in reverse (when the number of the rotation cycles of the rotary driving source 6 is regulated in advance, the sliding column 11 moves to the outermost end of the spiral groove 10, the rotary driving source 6 starts to rotate in reverse), the rotary driving source 6 rotates in reverse, the first piston 18 and the second piston 19 can be driven to move towards the second piston cylinder 17, the first piston 18 and the second piston 19 both move towards the second piston cylinder 17 and are limited by the flow direction of the four one-way valves 29, so that the powder in the second piston cylinder 17 is discharged into the nozzle 5 from the second powder passing pipe 26, the third powder passing pipe 27 and the powder passing channel 28, and is sprayed out by the nozzle 5 in the spiral moving process, the effect of uniformly spraying the powder on the surface of the printing plate 1 to be treated can be realized, and meanwhile, the glue in the glue storage box 15 is discharged into the first piston cylinder 16 from the first rubber tube 21, in order to spray glue to the surface of the printing plate 1 to be printed next time, in conclusion, the effects of uniformly spraying glue and powder in a large area can be automatically realized through the forward and backward rotation of the rotary driving source 6, and the powder printing is realized;

in the process of rotating the transfer plate 7, the two rotating shafts 32 are driven to rotate along with the transfer plate, the two rotating shafts 32 rotate to drive the two conical gears 34 to revolve around the conical gear I31 as the center of a circle, the two conical gears 34 revolve and are meshed with the conical gear I31 and the conical gear II 34 to drive the two rotating shafts 32 to rotate, and the two rotating shafts 32 rotate to drive the disturbing rod 33 to rotate, so that glue and powder in the glue storage box 14 and the powder storage box 15 are continuously disturbed, and the phenomenon that the glue and the powder are solidified or stuck together and are difficult to spray is avoided.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.