CN220933344U - Silk screen printing screen developing equipment - Google Patents

Abstract

The embodiment of the utility model discloses screen printing plate developing equipment, which belongs to the field of screen printing plate flushing and comprises a bottom frame and a spraying mechanism arranged at the rear half part of the bottom frame, wherein the spraying mechanism comprises developing box bodies with conveying openings at two symmetrical sides, the bottom of each developing box body is provided with a transmission component for screen printing plate spraying, and a spraying component capable of translating on the transmission component is arranged above the transmission component; a power system for providing a water source for the spray assembly; and the electronic control system comprises an electronic control cabinet, and a touch terminal and a pressure gauge which are arranged on the developing box body and connected with the electronic control cabinet, and the automatic flushing function of the screen printing plate is realized, the screen printing plate flushing stability is realized, and the labor cost is reduced by adopting a movable spraying assembly and a corresponding transmission assembly for the movement of the screen printing plate.

Description

Silk screen printing screen developing equipment

Technical Field

The embodiment of the utility model relates to the technical field of screen printing plate development, in particular to screen printing plate development equipment.

Background

The disclosure of this background section is only intended to increase the understanding of the general background of the utility model and is not necessarily to be construed as an admission or any form of suggestion that this information forms the prior art already known to those of ordinary skill in the art.

In the screen printing process, the exposed screen printing plate can show the image-text area through a developing and washing process, and the photosensitive glue of the image-text part which is shielded by a film and is not exposed by ultraviolet rays in the washing process falls off to expose meshes of the image-text area.

At present, the common mode adopted by the screen development is manual flushing, a manual handheld water gun is needed to flush and develop the screen, flushing pressure, times, modes and the like are completely operated and adjusted according to experience of operators, a specific data setting function is not provided, and the development quality of precise lines cannot guarantee stability; meanwhile, the process parameter determination and the data statistics record cannot be carried out on the screen printing plates of different batches.

The manual handheld water gun is used for flushing and developing the screen, flushing pressure, times, modes and the like are completely operated and adjusted according to experience of operators, a specific data setting function is not provided, and the developing quality of the precise lines cannot guarantee stability; meanwhile, the process parameters of different batches of screen printing plates cannot be unified and the data statistics recording cannot be carried out.

Disclosure of utility model

Therefore, the embodiment of the utility model provides a silk screen developing device, which aims to solve the problems of unstable flushing operation, deviation of flushing effect and difficulty in recording flushing data caused by manually flushing a silk screen in the prior art.

In order to achieve the above object, the embodiments of the present utility model provide the following technical solutions:

In an embodiment of the present utility model, there is provided a screen printing plate developing apparatus including a chassis, further including

The spraying mechanism is arranged at the rear half part of the underframe and comprises developing box bodies with transmission openings at two symmetrical sides, a transmission assembly for screen printing spraying is arranged at the bottom of the developing box bodies, and a spraying assembly capable of translating on the transmission assembly is arranged above the transmission assembly;

a power system for providing a water source for the spray assembly;

and the electric control system comprises an electric control cabinet, and a touch terminal and a pressure gauge which are arranged on the developing box body and connected with the electric control cabinet.

Further, the transmission assembly comprises two fixing seats, the fixing seats are respectively arranged on the underframe at the inner side of the transmission opening of the developing box body, a screen conveying driving sprocket and a screen conveying driven sprocket are respectively arranged in the two fixing seats, the screen conveying driving sprocket is driven by a screen conveying motor, a screen conveying chain opposite to the transmission opening is arranged on the screen conveying driving sprocket and the screen conveying driven sprocket, a spraying moving assembly is arranged on the parallel side of the screen conveying chain, and the bottom of the spraying assembly is fixed on the spraying moving assembly.

Further, be located the bottom of half tone conveyor chain between the fixing base and be equipped with the stabilizer plate, be equipped with the installed part that can height-adjusting on the stabilizer plate, be equipped with the half tone conveyor tensioning sprocket who is equipped with the contact of half tone conveyor chain on the installed part, half tone conveyor chain's side is equipped with half tone V type backplate.

Further, a guide frame is arranged at the outer side end part of the fixed seat provided with the screen conveying driven sprocket, and a feeding guide wheel is arranged in the guide frame.

Further, the spraying moving assembly comprises a spraying moving main chain wheel and a spraying moving auxiliary chain wheel, the spraying moving main chain wheel is fixed on the side face of the guide frame through a driving shaft of the spraying moving motor, the spraying moving auxiliary chain wheel is arranged on an auxiliary piece arranged on the driving shaft of the screen conveying motor, the spraying moving main chain wheel and the spraying moving auxiliary chain wheel are provided with spraying moving chains, and the spraying assembly is connected to the spraying moving chains.

Further, the screen plate conveying motor and the spraying moving motor are both arranged and fixed on the outer surface of the developing box body and positioned in the front half area of the underframe.

Further, spray the subassembly and include the gate-type and spray the dustcoat, the half tone is carried the intermediate position that the chain corresponds to spray the dustcoat, it is equipped with the shower that has the shower nozzle to spray the dustcoat inboard and be located half tone and carry the chain both sides, the shower is equipped with through the top that sprays the dustcoat and sprays the inlet tube and connect driving system, the top that sprays the dustcoat is mobilizable to hoist and mount the inside of developing box, the bottom that sprays the dustcoat is equipped with towards the side that sprays driving chain and connects the driving chain connecting piece that sprays driving chain.

Further, the spray housing is provided with two spray boxes which are oppositely arranged, the spray pipes are longitudinally arranged in the spray boxes, the spray heads on the two spray pipes are oppositely arranged, lifting pieces are symmetrically arranged at the top of the spray housing, lifting rail pulleys are arranged on the inner sides of the lifting pieces, and the lifting rail pulleys are arranged on lifting rails at the inner sides of the tops of the developing box bodies.

Further, the bottom of spray box is connected through concave plate spare, concave plate spare is located the bottom of half tone conveying chain, the bottom symmetry of spray box is equipped with sprays down and removes the wheel, be equipped with the guide rail on the chassis with spray down the position that removes the wheel relatively, the top of developing box is located the intermediate position of hoist and mount spare and is equipped with sprays the auxiliary moving wheel, it is equipped with in the auxiliary rail to spray the auxiliary moving wheel restriction at developing box top.

Further, driving system includes drainage box, diaphragm pump, one-level filtration, secondary filtration, circulating water storage tank, booster pump and multistage vertical centrifugal pump, the water supply end of booster pump is all through water supply hose connection spray the inlet tube, drainage box and circulating water storage tank intercommunication, the diaphragm pump passes through the pipe connection the bottom of circulating water storage tank, the play water end of diaphragm pump connects one-level filtration and secondary filtration in proper order, the circulating water storage tank is connected to the play water end of secondary filtration, the side of circulating water storage tank is equipped with the drain, the inlet end and the play water end all communicate the circulating water storage tank of multistage vertical centrifugal pump.

According to an embodiment of the present utility model, the screen developing apparatus has the following advantages: the device comprises a chassis and a spraying mechanism arranged at the rear half part of the chassis, wherein the spraying mechanism comprises developing box bodies with transmission openings on two symmetrical sides, a transmission assembly for screen printing spraying is arranged at the bottom of the developing box bodies, and a spraying assembly capable of translating on the transmission assembly is arranged above the transmission assembly; a power system for providing a water source for the spray assembly; and the electronic control system comprises an electronic control cabinet, and a touch terminal and a pressure gauge which are arranged on the developing box body and connected with the electronic control cabinet, and the automatic flushing function of the screen printing plate is realized, the screen printing plate flushing stability is realized, and the labor cost is reduced by adopting a movable spraying assembly and a corresponding transmission assembly for the movement of the screen printing plate.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those skilled in the art from this disclosure that the drawings described below are merely exemplary and that other embodiments may be derived from the drawings provided without undue effort.

The structures, proportions, sizes, etc. shown in the present specification are shown only for the purposes of illustration and description, and are not intended to limit the scope of the utility model, which is defined by the claims, so that any structural modifications, changes in proportions, or adjustments of sizes, which do not affect the efficacy or the achievement of the present utility model, should fall within the ambit of the technical disclosure.

FIG. 1 is a front perspective view of a screen developing apparatus according to an embodiment of the present utility model;

FIG. 2 is a rear perspective view of a screen developing apparatus according to an embodiment of the present utility model;

FIG. 3 is a perspective view showing a structure of a rear-view removed portion of a screen printing plate developing apparatus according to one embodiment of the utility model;

FIG. 4 is a perspective view of a combination of a drive assembly and a spray movement assembly in an embodiment of the present utility model;

FIG. 5 is a front view of a combination of a drive assembly and a spray movement assembly in an embodiment of the present utility model;

FIG. 6 is a top plan view of a combination drive assembly and spray movement assembly in an embodiment of the present utility model;

FIG. 7 is a perspective view of a spray assembly according to an embodiment of the present utility model;

FIG. 8 is a front view of a spray assembly according to an embodiment of the present utility model;

FIG. 9 is a top view of a spray assembly according to an embodiment of the present utility model;

FIG. 10 is a left side view of a spray assembly in accordance with an embodiment of the present utility model;

Fig. 11 is a cross-sectional view taken along A-A in fig. 10.

In the figure: 1. a chassis; 11. a guide rail; 12. an auxiliary rail;

2. A developing box; 21. a transfer port;

3. A transmission assembly; 31. a fixing seat; 32. a screen conveying driving sprocket; 33. a screen plate conveying driven sprocket; 34. a screen plate conveying motor; 35. a screen plate conveying chain; 36. a stabilizing plate; 37. a mounting member; 38. a screen conveying and tensioning chain wheel; 39. a V-shaped guard plate of the screen; 310. a guide frame; 311. feeding guide wheels;

4. A spray movement assembly; 41. spraying and moving a main chain wheel; 42. spray movement from the sprocket; 43. a spraying mobile motor; 44. spraying and moving the chain;

5. A spray assembly; 51. spraying an outer cover; 52. a shower pipe; 53. a drive chain connection; 54. spraying a water inlet pipe; 55. a spray box; 56. hoisting the piece; 57. a hanger rail pulley; 58. a concave plate member; 59. spraying a lower moving wheel; 510. a spray auxiliary moving wheel;

6. A power system; 61. a drain box; 62. a diaphragm pump; 63. first-stage filtering; 64. secondary filtering; 65. a circulating water storage tank; 66. a booster pump; 67. a multistage vertical centrifugal pump; 68. a sewage outlet;

7. an electric control cabinet;

8. Touch terminal and manometer.

Detailed Description

Other advantages and advantages of the present utility model will become apparent to those skilled in the art from the following detailed description, which, by way of illustration, is to be read in connection with certain specific embodiments, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The terms such as "upper", "lower", "left", "right", "middle" and the like are also used in the present specification for convenience of description, but are not intended to limit the scope of the present utility model, and the changes or modifications of the relative relationship thereof are considered to be within the scope of the present utility model without substantial modification of the technical content.

1-3, The screen printing plate developing device provided by the embodiment of the utility model comprises a bottom frame 1 and also comprises

The spraying mechanism is arranged at the rear half part of the underframe 1 and comprises a developing box body 2 with transmission openings 21 on two symmetrical sides, a transmission assembly 3 for screen printing spraying is arranged at the bottom of the developing box body 2, and a spraying assembly 5 capable of translating on the transmission assembly 3 is arranged above the transmission assembly 3;

a power system 6 for providing a water source for the spray assembly 5;

And the electric control system comprises an electric control cabinet 7, and a touch terminal and a pressure gauge 8 which are arranged on the developing box body 2 and connected with the electric control cabinet 7.

The whole developing device is made of SUS304 stainless steel and is corrosion-resistant, compared with the prior art, the automatic flushing function of the screen printing plate is realized by adopting the movable spraying assembly 5 and the corresponding transmission assembly 3 for moving the screen printing plate, the screen printing plate is flushed stably, and the labor cost is reduced.

As shown in fig. 4 to 6, the transmission assembly 3 includes two fixing seats 31, the fixing seats 31 are respectively mounted on the chassis 1 inside the transmission opening 21 of the developing box 2, a screen conveying driving sprocket 32 and a screen conveying driven sprocket 33 are respectively arranged in the two fixing seats 31, the screen conveying driving sprocket 32 is driven by a screen conveying motor 34, a screen conveying chain 35 opposite to the transmission opening 21 is arranged on the screen conveying driving sprocket 32 and the screen conveying driven sprocket 33, a spraying moving assembly 4 is arranged on the parallel side of the screen conveying chain 35, and the bottom of the spraying assembly 5 is fixed on the spraying moving assembly 4.

The transmission assembly 3 aims at enabling the screen printing plate to be conveyed to the inside of the developing box body 2, realizing automatic operation, meanwhile realizing the translation of the spraying assembly 5 by the spraying moving assembly 4 which is arranged in the same-direction conveying mode with the transmission assembly 3, and being capable of flushing the screen printing plate more comprehensively and repeatedly.

In order to guarantee the stability of screen conveying chain 35, be located the bottom of screen conveying chain 35 between the fixing base 31 and be equipped with stabilizing plate 36, be equipped with on the stabilizing plate 36 and can height-adjusting's installed part 37, be equipped with on the installed part 37 with screen conveying chain 35 contact's screen conveying tensioning sprocket 38, the side of screen conveying chain 35 is equipped with screen V type backplate 39, screen V type backplate 39 can make the screen always carry along screen conveying chain 35 forward, avoids it to deviate from the outside of chain.

In yet another embodiment, a guide frame 310 is disposed at the outer end of the fixed seat 31 provided with the screen conveying driven sprocket 33, and a feeding guide wheel 311 is disposed in the guide frame 310 to correct the initial placement position of the screen, so as to prevent the screen from being skewed or jammed in the transmission process of the chain driven by inaccurate screen positions.

Referring again to fig. 6, the spray moving assembly 4 includes a spray moving main sprocket 41 and a spray moving sub sprocket 42, the spray moving main sprocket 41 is fixed on the side of the guide frame 310 by a driving shaft of the spray moving motor 43, the spray moving sub sprocket 42 is disposed on an auxiliary member provided on the driving shaft of the screen conveying motor 34, the spray moving main sprocket 41 and the spray moving sub sprocket 42 are provided with a spray moving chain 44, the spray assembly 5 is connected to the spray moving chain 44, and the operation of the spray moving chain 44 drives the translation of the spray assembly 5.

Wherein, spray mobile motor 43 and half tone transport motor 34 in this example set up respectively on two fixing bases 31 to set up in same side, avoid two motors to take place the interference each other, wherein the auxiliary member passes through half tone transport motor's bolt fastening on the internal surface of developing box 2, has the center pin and can make half tone transport motor's drive shaft free rotation, avoids influencing its drive half tone transport chain 35 operation.

In a specific structure, in order to make the operation of the transmission assembly 3 and the spraying moving assembly 4 more stable, the screen conveying motor 34 and the spraying moving motor 43 are both arranged and fixed on the outer surface of the developing box 2 and positioned in the front half area of the chassis 1, so that a double fixing structure of the chassis 1 and the developing box 2 is formed.

As shown in fig. 7-11, the spraying assembly 5 comprises a gate-shaped spraying outer cover 51, the screen conveying chain 35 corresponds to the middle position of the spraying outer cover 51, spraying pipes 52 with spray heads are arranged on the inner side of the spraying outer cover 51 and positioned on two sides of the screen conveying chain 35, the spraying pipes 52 are connected with the power system 6 through spraying water inlet pipes 54 arranged on the top of the spraying outer cover 51, the top of the spraying outer cover 51 is movably hoisted in the developing box 2, a transmission chain connecting piece 53 connected with the spraying transmission chain is arranged on the bottom of the spraying outer cover 51 towards the side surface of the spraying transmission chain, 5 groups of spray heads but not limited to 5 groups of spray heads are arranged on each spraying pipe 52, and the screen can be simultaneously washed front and back in the moving process of the spraying assembly 5, and any single-sided washing can be set through a PLC.

In order to achieve the aim of better cleaning the photoresist on the screen printing plate, brushes (not shown) are arranged at two ends of the spraying assembly 5 to assist in removing the photoresist.

In this embodiment, in order to ensure stable operation of the spray assembly 5, a hanger rail sliding structure is further adopted, the spray housing 51 is provided with two spray boxes 55 which are oppositely arranged, the spray pipes 52 are longitudinally arranged in the spray boxes 55, the spray heads on the two spray pipes 52 are oppositely arranged, hanging pieces 56 are symmetrically arranged at the top of the spray housing 51, hanger rail pulleys 57 are arranged at opposite inner sides of the hanging pieces 56, and the hanger rail pulleys 57 are arranged on hanger rails at opposite positions at the inner sides of the top of the developing box 2.

In still another embodiment, in order to ensure the stability of the box body of the spraying assembly 5, the bottom of the spraying box 55 is connected through a concave plate 58, the concave plate 58 is located at the bottom of the screen conveying chain 35, the bottom of the spraying box 55 is symmetrically provided with a spraying down moving wheel 39, a V-shaped or concave guide rail 11 is arranged on the position, opposite to the spraying down moving wheel 39, of the underframe 1, the spraying down moving wheel 39 also improves and ensures that the spraying box body can stably operate, and meanwhile, the supporting function is achieved, the influence of deformation of the hanging rail pulley 57 caused by the dead weight of the spraying box body is avoided, a spraying auxiliary moving wheel 510 is arranged at the middle position of the hanging piece 56 at the top of the developing box body 2, the spraying auxiliary moving wheel 510 is limited in an auxiliary rail 12 arranged at the top of the developing box body 2, and the auxiliary moving wheel is transversely arranged and mainly used for correcting the position of the hanging rail pulley 57, and the hanging rail pulley 57 is prevented from being derailed.

Referring to fig. 1 again, the power system 6 includes a drain box 61, a diaphragm pump 62, a first-stage filter 63, a second-stage filter 64, a circulating water storage tank 65, a booster pump 66 and a multistage vertical centrifugal pump 67, the water supply end of the booster pump 66 is connected with the spray water inlet pipe 54 through a water supply hose, the spray assembly 5 is guaranteed to be capable of obtaining a water source to wash a screen printing plate in the moving process, the drain box 61 is communicated with the circulating water storage tank 65, the diaphragm pump 62 is connected with the bottom of the circulating water storage tank 65 through a pipeline, the water outlet end of the diaphragm pump 62 is sequentially connected with the first-stage filter 63 and the second-stage filter 64, the water outlet end of the second-stage filter 64 is connected with the circulating water storage tank 65, a drain outlet 68 is arranged on the side surface of the circulating water storage tank 65, and the water inlet end and the water outlet end of the multistage vertical centrifugal pump 67 are all communicated with the circulating water storage tank 65.

The membrane pump 62 lifts the circulating water at the bottom of the water storage tank to the top of the primary filter 63, the circulating water directly flows into the primary multi-layer filter device, the primary filter 63 comprises 4 layers but not limited to 4 layers of filter layers, and filter cotton is filled in the filter layers but not limited to the single variety of filter materials;

After the circulating water is subjected to the primary filtration 63, impurities such as a large block of photoresist can be filtered out, and then the impurities flow into the secondary filtration 64. The secondary filter 64 adopts micron-sized filter paper for filtration, a floating ball liquid level sensor is arranged above the filter paper, a filter paper winding drum is sleeved on a rotating shaft, the rotating shaft is driven by a motor, and the structure is used for controlling the automatic replacement of the filter paper without manual operation.

The screen printing plate is washed by spraying circulating water after entering the equipment through the transmission port 21 of the developing box body 2 near one end of the feeding guide wheel 311, so as to reduce water consumption and sewage discharge.

The filtered flushing water in the circulating water storage tank 65 is pressurized by the booster pump 66 and then sprayed to the surface of the screen printing plate through the spray nozzle, photoresist in the image-text area on the screen printing plate is flushed, the pressure is adjustable, the flushing frequency of the circulating water is not limited according to the process requirement, the flushed water is returned to the circulating water storage tank 65 through the tank bottom water draining box 61, the circulating water at the tank bottom is lifted to the filtering system through the diaphragm pump 62 for filtering, and the filtered circulating water is drained into the circulating water storage tank 65 again.

When the washing waste in the circulating water storage tank 65 is more or the volume is larger, the multistage vertical centrifugal pump 67 can be started to perform preliminary separation on the washing waste, the purpose of which is to reduce the working pressure of the diaphragm pump 62 and improve the filtering efficiency, and after the whole washing is finished, the circulating water in the circulating water storage tank 65 is discharged through the sewage outlet 68.

The developing device has the following advantages based on the above:

1. The manual hand-held water gun is not required to be used for flushing;

2. The circulating water is used for flushing and developing, so that pollution discharge and water consumption are reduced;

3. Parameters such as development pressure and the like can be set, the parameters can be stored and directly called, development is not needed according to the experience of workers, and the process has data;

4. The equipment is single-body and wire-connection dual-purpose, and can be directly connected with a production line;

5. The equipment is of a full-package structure, so that flushing water splashing is avoided, a plate making workshop environment is maintained, and maintenance is convenient;

6. The brush is arranged for assisting development, so that the speed is high;

7. The developed screen pattern has clear text, uniform screen points, no burr notch on the line edge of the printed pattern, and the like;

8. The rotary rollers on two sides of the spraying assembly assist in the transmission of the screen plate, so that no deviation is ensured under the impact of pressure, the flushing pressure of each point of the screen plate is uniform, and the condition that photoresist is not completely flushed or damaged in a developing area is avoided.

While the utility model has been described in detail in the foregoing general description and specific examples, it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the utility model and are intended to be within the scope of the utility model as claimed.

Claims (10)

1. A silk screen plate developing device comprises a bottom frame, and is characterized by further comprising

The spraying mechanism is arranged at the rear half part of the underframe and comprises developing box bodies with transmission openings at two symmetrical sides, a transmission assembly for screen printing spraying is arranged at the bottom of the developing box bodies, and a spraying assembly capable of translating on the transmission assembly is arranged above the transmission assembly;

a power system for providing a water source for the spray assembly;

and the electric control system comprises an electric control cabinet, and a touch terminal and a pressure gauge which are arranged on the developing box body and connected with the electric control cabinet.

2. The screen printing screen developing apparatus as claimed in claim 1, wherein the transmission assembly comprises two fixing seats, the fixing seats are respectively installed on the underframe at the inner side of the transmission opening of the developing box body, screen printing conveying driving chain wheels and screen printing conveying driven chain wheels are respectively arranged in the two fixing seats, the screen printing conveying driving chain wheels are driven by a screen printing conveying motor, screen printing conveying chains opposite to the transmission opening are arranged on the screen printing conveying driving chain wheels and the screen printing conveying driven chain wheels, a spraying moving assembly is arranged at the parallel side of the screen printing conveying chains, and the bottom of the spraying assembly is fixed on the spraying moving assembly.

3. The screen printing screen developing apparatus as claimed in claim 2, wherein a stabilizing plate is arranged at the bottom of the screen printing screen conveying chain between the fixing seats, a mounting piece capable of adjusting the height is arranged on the stabilizing plate, a screen printing screen conveying tensioning chain wheel in contact with the screen printing screen conveying chain is arranged on the mounting piece, and a screen printing screen V-shaped guard plate is arranged on the side face of the screen printing screen conveying chain.

4. A screen printing plate developing apparatus according to claim 3, wherein a guide frame is provided at an outer end portion of the fixing base provided with the screen printing plate conveying driven sprocket, and a feeding guide wheel is provided inside the guide frame.

5. The screen printing plate developing apparatus as claimed in claim 4, wherein the spray moving assembly comprises a spray moving main sprocket and a spray moving sub sprocket, the spray moving main sprocket is fixed on the side of the guide frame by a driving shaft of the spray moving motor, the spray moving sub sprocket is provided on an auxiliary member provided on the driving shaft of the screen printing plate conveying motor, the spray moving main sprocket and the spray moving sub sprocket are provided with spray moving chains, and the spray assembly is connected to the spray moving chains.

6. The screen printing screen developing apparatus as claimed in claim 5, wherein the screen conveying motor and the spray moving motor are both disposed and fixed on the outer surface of the developing casing in the front half area of the bottom frame.

7. The screen printing plate developing device according to claim 5, wherein the spraying assembly comprises a door-shaped spraying outer cover, the screen printing plate conveying chain corresponds to the middle position of the spraying outer cover, spraying pipes with spray heads are arranged on two sides of the screen printing plate conveying chain on the inner side of the spraying outer cover, the spraying pipes are connected with the power system through spraying water inlet pipes arranged on the top of the spraying outer cover, the top of the spraying outer cover is movably hoisted in the developing box, and a transmission chain connecting piece connected with the spraying transmission chain is arranged on the bottom of the spraying outer cover towards the side face of the spraying transmission chain.

8. The screen printing plate developing apparatus as claimed in claim 7, wherein the spray housing has two spray boxes arranged opposite to each other, the spray pipes are longitudinally arranged in the spray boxes, the spray heads on the two spray pipes are arranged opposite to each other, the top of the spray housing is symmetrically provided with hanging pieces, the opposite inner sides of the hanging pieces are provided with hanging rail pulleys, and the hanging rail pulleys are arranged on hanging rails at opposite positions on the inner sides of the top of the developing box.

9. The screen printing plate developing device according to claim 8, wherein the bottom of the spray box is connected through a concave plate, the concave plate is positioned at the bottom of the screen printing plate conveying chain, spraying lower moving wheels are symmetrically arranged at the bottom of the spray box, guide tracks are arranged on the bottom frame at positions opposite to the spraying lower moving wheels, spraying auxiliary moving wheels are arranged at the middle positions of the lifting pieces at the top of the developing box body, and the spraying auxiliary moving wheels are limited in auxiliary tracks arranged at the top of the developing box body.

10. The screen printing plate developing device according to claim 1 or 7, wherein the power system comprises a drainage box, a diaphragm pump, primary filtration, secondary filtration, a circulating water storage tank, a booster pump and a multi-stage vertical centrifugal pump, water supply ends of the booster pump are connected with the spraying water inlet pipe through water supply hoses, the drainage box is communicated with the circulating water storage tank, the diaphragm pump is connected with the bottom of the circulating water storage tank through a pipeline, water outlet ends of the diaphragm pump are sequentially connected with the primary filtration and the secondary filtration, water outlet ends of the secondary filtration are connected with the circulating water storage tank, a sewage drain is arranged on the side face of the circulating water storage tank, and water inlet ends and water outlet ends of the multi-stage vertical centrifugal pump are all communicated with the circulating water storage tank.