CN103381695B - Screen frame positioner for screen photosensitive plate making and rapid and accurate positioning method thereof - Google Patents

Abstract

The invention discloses a screen frame positioner for screen photosensitive plate making and a rapid and accurate positioning method thereof. The screen frame positioner consists of a conical ejector pin positioning device, a trapezoid ejector pin positioning device, a screen frame equipped with a ladder rod polymer photosensitive film screen, and a fixation frame for positioning the screen frame. The rapid and accurate positioning method includes: a preparation alignment process under a lighting condition and a printing platemaking process under a darkroom condition. With the aid of the screen frame positioned, a complex three-parameter screen frame positioning problem is converted to a positioning problem of three single parameters. Rapid and accurate positioning replaces the time-consuming and laborious screen frame manual positioning that cannot ensure the positioning accuracy.

Description

Screen Frame Positioner for Screen Photosensitive Plate-making and Its Fast and Accurate Positioning Method

technical field

The invention relates to a screen frame positioner for screen photosensitive plate-making and a fast and accurate positioning method thereof.

Background technique

The textile industry is a traditional pillar industry of the national economy and an important livelihood industry. At the same time, it is an industry with comparative advantages in my country in the international competition under the background of economic globalization. During the "Twelfth Five-Year Plan" period, the textile industry faced double competition from developed countries at the high end of the industrial chain and developing countries at the low end of the industrial chain. Printed fabrics account for 11% to 13% of global textiles, 58% of printed fabrics are produced by rotary screen printing machines, and 28% for flat screen printing; With high precision and clear patterns, it is suitable for both light and thin fabrics (such as silk) and thick and heavy fabrics (such as blankets, towels and quilts). It always occupies a place in the field of textile printing.

According to whether the printing platen moves, flat screen printing can be divided into two categories: movable platen flat screen printing process and fixed platen flat screen printing process, and the present invention only relates to the latter. The technological process of fixed platen flat screen printing consists of preparation process and printing process. The preparation process is carried out in two steps: the first step, the polymer photosensitive film screen installed on the screen frame is moved to the fixed frame, and the positioning device set on the fixed frame positions the screen frame, and the inkjet printer is positioned on the photosensitive film screen as required. Drawing on the Internet, after photochemical treatment, a polymer film screen (print) with a hollow pattern is obtained: the hollow pattern area of the screen can pass through the color paste, while the non-pattern area blocks the color paste due to the existence of the polymer film. The way for the pulp to reach the fabric; the second step is to transfer the screen frame with the polymer photosensitive film screen to the printing trolley. The printing process is also divided into two steps: the first step, the fabric to be printed is pasted on the platen and fixed, the servo motor of the printing trolley and the synchronous belt drive the trolley through gear meshing, so that it can be precisely positioned to the corresponding printing station ; In the second step, the stepper motor drives the lifting mechanism to drive the screen frame down to press the fabric tightly, and then the scraper servo motor drives the scraper to push the color paste on the screen to scrape repeatedly, and the color paste passes through the screen to complete a pattern (color registration) Printing, the screen frame is lifted, and the printing trolley moves a flower back, to the next printing station, until the last printing station on the fixed platen; The length of the pattern printed on it. Flat screen printing machines usually need to be equipped with "several or dozens of color screens with different hollow patterns" according to the color registration requirements of fabric printed patterns; once the entire printing process of a color registration is completed, the next screen of a different color is replaced Carry out the next round of printing with color pastes of different colors; until the printing of the last screen of different colors (color registration) is completed; the technical term "alignment accuracy" in the printing process refers to the position accuracy of different color registration screens reaching the same printing station , also known as repeat positioning accuracy.

Improving "alignment accuracy" is the basis for producing high-quality printed fabrics. "Planet alignment accuracy" is not only related to the positioning accuracy of the trolley in the printing process (refer to the invention patent of our research group "Fixed Platform Flat Screen Printing Machine Based on Dual Control Mode", application number 201210116129.X); it is also related to the preparation It is related to the positioning accuracy of the process screen (flower plate) photosensitive plate making. In the flat screen printing process, each point of the printed fabric needs to correspond to the points of "several or dozens of different hollow patterns and color screens". The ideal process value of each screen point X, Y, and Z parameters during printing should be Constant; One of the key technologies supporting "the ideal process value should be constant" is the screen frame positioning technology for installing polymer photosensitive film screens, referred to as the screen frame positioning technology.

The screen frame positioning accuracy of the existing screen photosensitive plate-making completely depends on the experience and skills of the printing technician, and the screen frame positioning during the screen photosensitive plate-making is completed by visual proofreading; while manual operation has inherent uncertainty and randomness. The screen frame positioning of the screen photosensitive plate-making involves the adjustment of the three parameters of the screen frame X, Y, and Z. In view of the fact that there is mutual coupling between the three parameters, the manual proofreading of the screen frame positioning is time-consuming and laborious, and the positioning accuracy is difficult to guarantee; In addition, the operation process of screen photosensitive plate-making needs to be carried out in a dark room, so that the manual positioning accuracy based on the experience and skills of printing technicians is even more unsatisfactory; have happened. So far, the research on screen frame positioning during screen photosensitive plate making is still in a blank state and needs to be filled urgently. The present invention converts the three-parameter problem of screen frame positioning into three single-parameter positioning during photosensitive plate-making of the screen, and quickly and accurately locates the screen frame by means of two special positioning devices and auxiliary devices.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies of the prior art, and provide a screen frame positioner for screen photosensitive plate-making and a fast and accurate positioning method thereof.

The screen frame positioner for the screen photosensitive plate-making of the fixed platen flat screen printing is composed of a conical ejector positioning device, a trapezoidal ejector positioning device, a screen frame for installing a polymer photosensitive film screen, and a fixing frame for positioning the screen frame;

The fixed frame is made of MC-8-4040B aluminum profile, and the fixed frame includes the X-axis positioning rod, the X-axis auxiliary positioning rod, the first Y-axis positioning rod, the second Y-axis positioning rod, the first Z-axis positioning rod and the second Z-axis positioning rod,

The X-axis positioning rod, the X-axis auxiliary positioning rod, the first Y-axis positioning rod, and the second Y-axis positioning rod are assembled to form a rectangular frame, and the first Z-axis positioning rod and the second Z-axis positioning rod are placed on the first Y-axis positioning rod , above the second Y-axis positioning rod,

The screen frame installed with the polymer photosensitive film screen adopts a rectangular aluminum profile with arcs, and the screen frame sides corresponding to the X-axis positioning rod and the X-axis auxiliary positioning rod are respectively called the screen frame positioning side, the auxiliary positioning side, and the screen frame positioning side. Set the positioning round hole at the midpoint of the center point, and set the U-shaped positioning groove at the midpoint of the auxiliary positioning side;

The conical ejector rod positioning device and the trapezoidal ejector rod positioning device are respectively arranged at the midpoint of the X-axis positioning rod and the X-axis auxiliary positioning rod.

The conical ejector rod positioning device includes a guide rod frame, a guide rod, a first red light-emitting tube, a conical ejector rod, an adjusting screw, a fixing screw, a pressing cover plate, a first PTFE slide, a spacer, a second four Fluorine sliding sheet, spring, spring seat, first base, sliding block;

The guide rod passes through the hole at one end of the sliding block and is installed in the guide rod frame. The guide rod and the guide rod frame are vertically fixed on the first base, and the cover plate, the first PTFE sliding piece, the pad, the second four The fluorine sliding piece is fixed on the first base by fixing screws, the other end of the sliding block is clamped by the first PTFE sliding piece and the second PTFE sliding piece, the adjusting screw adjusts the gap of the clamping sliding piece, and the conical ejector rod is installed vertically On the upper plane of the sliding block protruding from the flat plate, one end of the spring is installed on the spring seat, the spring seat is fixed on the first base, the other end of the spring is pushed against the lower plane of the sliding block protruding from the flat plate, and the first red light-emitting tube is embedded in the first In the base, the positioning circular hole is sleeved into the conical push rod.

The trapezoidal ejector device includes a bearing compression screw, a bearing frame, a single row tapered roller bearing, a shaft, a pick plate fixing bolt, an upper support plate, a second base, a bearing frame fixing bolt, a spring upper fixing screw, a spring, and a pick plate Spring fixing screw, trapezoidal ejector rod, pick plate and second red luminous tube;

Single-row tapered roller bearings are arranged at both ends of the shaft and installed in the bearing frame. The bearing frame is fixed on the second base. Adjust the bearing compression screw in the bearing frame so that the shaft can rotate without axial movement. The pick plate is fixed on the shaft by the fixing bolt, the trapezoidal ejector rod is tightly connected with the pick plate, and the trapezoidal symmetry plane of the trapezoidal ejector bar is perpendicular to the shaft, the upper support plate is installed on the bearing frame by the bearing frame fixing bolt, and the pick plate can be Rotate around the axis of the shaft, the upper limit is when the pick plate touches the upper support plate, the upper end of the spring is hung on the spring fixing screw, the screw is fixed on the front of the upper support plate, the lower end of the spring is hung on the pick plate spring fixing screw, The screw is fixed on both sides of the picking plate; the second red light-emitting tube is installed in the upper support plate, and the U-shaped positioning groove is inserted into the trapezoidal ejector rod.

The fast and accurate positioning method of the screen frame positioner, including the preparation adjustment method under the lighting state and the printing plate making method under the dark room state;

Preparatory adjustment method under lighting conditions:

(1) Make X-axis positioning rod, X-axis auxiliary positioning rod, first Y-axis positioning rod, second Y-axis positioning rod, first Z-axis positioning rod and second Z-axis positioning rod according to printing process requirements, and calibrate the fixing frame The midpoint of the X-axis positioning rod and the X-axis auxiliary positioning rod, the X-axis positioning rod, the X-axis auxiliary positioning rod and the first Y-axis positioning rod and the second Y-axis positioning rod are assembled to form a rectangular frame;

(2) The conical ejector positioning device and the trapezoidal ejector device are respectively set at the midpoint of the X-axis positioning rod and the X-axis auxiliary positioning rod of the fixed frame, and laser or optical instruments are used to adjust the conical ejector positioning device and the trapezoidal ejector positioning device , so that the X parameters of the two are the same, and the distance between the two, that is, the Y parameter, meets the requirements of the printing process;

(3) The first Z-axis positioning rod and the second Z-axis positioning rod of the fixed frame are placed on the first Y-axis positioning rod and the second Y-axis positioning rod, and the first Z-axis positioning rod is adjusted by laser or optical instruments and the height of the second Z-axis positioning rod, adjust the Z plane by adjusting the height of the Y-axis positioning rod, so that the Z parameters of the first Z-axis positioning rod and the second Z-axis positioning rod are the same and meet the printing process requirements;

The printing plate-making method in the darkroom state is as follows:

(4) Turn on the first red light-emitting tube and the second red light-emitting tube, turn off the white light lighting in the operation room, and enter the dark room state in the operation room;

(5) The positioning round hole on the positioning side of the screen frame is inserted into the conical ejector rod, the U-shaped positioning groove is inserted into the trapezoidal ejector rod, the screen frame installed with the polymer photosensitive film screen is pressed down, and the screen is attached to the first position of the fixed frame. A printing plane is formed on the Z-axis positioning rod and the second Z-axis positioning rod;

(6) The inkjet printer draws on the photosensitive film screen as needed, and after photochemical treatment, a polymer film screen with hollow patterns is obtained.

Compared with the background technology, the present invention has the beneficial effects of:

With the aid of the screen frame locator, the complex three-parameter screen frame positioning problem is transformed into three single-parameter positioning problems, and the fast and accurate positioning replaces the manual screen frame positioning that is time-consuming and labor-intensive, and the positioning accuracy cannot be guaranteed;

The conical ejector has the function of automatic compensation for the error of the circular positioning hole on the positioning side of the screen frame or the wear in use; On the ejector rod, it helps to improve the positioning accuracy of the screen frame;

The trapezoidal ejector has an automatic compensation function for the error of the U-shaped positioning groove on the auxiliary positioning side of the screen frame or the wear in use; It helps to improve the positioning accuracy of the screen frame;

In view of the fact that the screen photosensitive plate-making needs to be carried out in a dark room, the screen photosensitive plate-making positioner is equipped with a red light-emitting tube in the positioning adjustment area, which is convenient for printing technicians to operate.

Description of drawings

Fig. 1 (a) is the screen frame positioner structural diagram of screen photosensitive plate-making;

Fig. 1 (b) is the screen frame structural diagram that polymer photosensitive film screen cloth is installed;

Fig. 1 (c) is the sectional view of the fixed frame aluminum profile of positioning screen frame;

Fig. 1 (d) is the sectional view of the screen frame aluminum profile that installs polymer photosensitive film screen;

Fig. 2 is a structural diagram of a conical mandrel positioning device;

Fig. 3 is a structural diagram of a trapezoidal ejector pin positioning device;

Fig. 4 (a) is the flow chart of the preparation and adjustment process under the lighting state;

Figure 4(b) is a flow chart of the printing plate making process in the darkroom state.

Detailed ways

As shown in Figure 1, the screen frame positioner for the screen photosensitive plate-making of fixed platen screen printing consists of a conical ejector pin positioning device 100, a trapezoidal ejector pin positioning device 200, a screen frame 300 for installing a polymer photosensitive film screen, The fixed frame for positioning the screen frame;

The fixed frame adopts MC-8-4040B aluminum profile, and the fixed frame includes X-axis positioning rod 401, X-axis auxiliary positioning rod 402, first Y-axis positioning rod 403, second Y-axis positioning rod 404, and first Z-axis positioning rod 405 and the second Z-axis positioning rod 406,

The X-axis positioning rod 401, the X-axis auxiliary positioning rod 402, the first Y-axis positioning rod 403, and the second Y-axis positioning rod 404 are assembled to form a rectangular frame, and the first Z-axis positioning rod 405 and the second Z-axis positioning rod 406 are placed Above the first Y-axis positioning rod 403 and the second Y-axis positioning rod 404 ,

The X-axis is parallel to the translation direction of the printing trolley, the Y-axis is parallel to the width direction of the printed fabric, and the height Z parameter of the screen frame is adjusted through the Z-axis positioning rod;

The screen frame 300 on which the polymer photosensitive film screen is installed adopts a rectangular aluminum profile with arcs, and the screen frame sides corresponding to the X-axis positioning rod 401 and the X-axis auxiliary positioning rod 402 are respectively called the screen frame positioning side and the auxiliary positioning side. Set the positioning round hole 301 at the midpoint of the positioning side of the frame, and set the U-shaped positioning groove 302 at the midpoint of the auxiliary positioning side; common screen frame specifications are: 1400mm×1900mm, 1800mm×1900mm, 2200mm×1900mm;

The conical mandrel positioning device 100 and the trapezoidal mandrel positioning device 200 are respectively arranged at the midpoints of the X-axis positioning bar 401 and the X-axis auxiliary positioning bar 402 .

As shown in Figure 2, the conical mandrel positioning device 100 includes a guide rod frame 101, a guide rod 102, a first red light emitting tube 103, a conical mandrel 104, an adjusting screw 105, a fixing screw 106, and a pressing cover plate 107 , the first PTFE sliding piece 108, the pad 109, the second PTFE sliding piece 110, the spring 111, the spring seat 112, the first base 113, the sliding block 114;

The guide rod 102 passes through the through hole at one end of the sliding block 114, and is installed in the guide rod frame 101. The guide rod 102 and the guide rod frame 101 are vertically fixed on the first base 113, and the cover plate 107 and the first PTFE sliding sheet are pressed tightly. 108, spacer 109, second PTFE sliding piece 110 are fixed on the first base 113 by fixing screw 106, the other end of sliding block 114 is clamped by the first PTFE sliding piece 108 and the second PTFE sliding piece 110, adjust Screw 105 regulates the gap of clamping slide block 114, and conical push rod 104 is vertically installed on the upper plane of slide block 114 protruding flat plate, and one end of spring 111 is installed on the spring seat 112, and spring seat 112 is fixed on the first base 113, and spring The other end of 111 pushes against the lower plane of the sliding block 114 protruding from the flat plate, the first red light emitting tube 103 is embedded in the first base 113 , and the positioning hole 301 is inserted into the conical ejector rod 104 .

As shown in FIG. 3 , the trapezoidal ejector device 200 includes a bearing compression screw 201, a bearing frame 202, a single row tapered roller bearing 203, a shaft 204, a pick plate fixing bolt 205, an upper support plate 206, a second base 207, Bearing frame fixing bolt 208, spring upper fixing screw 209, spring 210, picking plate spring fixing screw 211, trapezoidal ejector rod 212, picking plate 213 and second red light-emitting tube 214;

The two ends of the shaft 204 are equipped with single-row tapered roller bearings 203 respectively, and are installed in the bearing frame 202. The bearing frame 202 is fixed on the second base 207. Adjust the bearing compression screws 201 in the bearing frame 202 so that the shaft 204 has no axial string Moving and rotatable, the pick plate 213 is fixed on the shaft 204 by the pick plate fixing bolt 205, the trapezoidal ejector rod 212 is tightly connected with the pick plate 213, and the trapezoidal symmetry plane of the trapezoidal ejector bar 212 is perpendicular to the shaft 204, and the upper support The plate 206 is installed on the bearing frame by the fixing bolt 208 of the bearing frame, the pick plate 213 can rotate around the axis of the shaft 204, and its upper limit is when the pick plate 213 touches the upper support plate 206, and the upper end of the spring 210 is hung on the spring to fix the screw 209, the screw is fixed on the front of the upper support plate 206, the lower end of the spring 210 is hung on the pick plate spring fixing screw 211, and the screw is fixed on both sides of the pick plate 213; the second red light-emitting tube 214 is installed in the upper support plate 206, The U-shaped positioning groove 302 is inserted into the trapezoidal ejector rod 212 . Irradiate the trapezoidal mandrel and the surrounding area.

As shown in Figure 4, the fast and accurate positioning method of the screen frame positioner includes the preparation adjustment method under the lighting state and the printing plate making method under the darkroom state;

Preparatory adjustment method under lighting conditions:

(1) Make X-axis positioning rod 401, X-axis auxiliary positioning rod 402, first Y-axis positioning rod 403, second Y-axis positioning rod 404, first Z-axis positioning rod 405 and second Z-axis positioning rod according to printing process requirements Rod 406, the midpoint of the fixed frame X-axis positioning rod 401, X-axis auxiliary positioning rod 402, X-axis positioning rod 401, X-axis auxiliary positioning rod 402, first Y-axis positioning rod 403, second Y-axis positioning rod 404 assembled to form a rectangular frame;

(2) The conical ejector positioning device 100 and the trapezoidal ejector device 200 are respectively set at the midpoints of the X-axis positioning rod 401 and the X-axis auxiliary positioning rod 402 of the fixed frame, and the conical ejector positioning device and the trapezoidal positioning device are adjusted by laser or optical instruments. Ejector positioning device, so that the X parameters of the two are the same, and the distance between the two, that is, the Y parameter, meets the requirements of the printing process;

(3) The first Z-axis positioning rod 405 and the second Z-axis positioning rod 406 of the fixed frame are placed on the first Y-axis positioning rod 403 and the second Y-axis positioning rod 404, and the first Y-axis positioning rod 403 and the second Y-axis positioning rod 404 are adjusted by laser or optical instruments. The height of the Z-axis positioning rod 405 and the second Z-axis positioning rod 406 is adjusted by adjusting the height of the Y-axis positioning rod to adjust the Z plane, so that the Z parameters of the first Z-axis positioning rod 405 and the second Z-axis positioning rod 406 are the same, And meet the printing process requirements;

The printing plate-making method in the darkroom state is as follows:

(4) Turn on the first red light-emitting tube 103 and the second red light-emitting tube 214, turn off the white light lighting in the operation room, and enter the dark room state in the operation room;

(5) The positioning round hole 301 on the positioning side of the screen frame is inserted into the conical ejector 104, the U-shaped positioning groove 302 is inserted into the trapezoidal ejector 212, the screen frame 300 installed with the polymer photosensitive film screen is pressed down, and the screen is pasted on the A printing plane is formed on the first Z-axis positioning rod 405 and the second Z-axis positioning rod 406 of the fixed frame;

(6) The inkjet printer draws on the photosensitive film screen as needed, and after photochemical treatment, a polymer film screen with hollow patterns is obtained.

Claims (4)

1. a screen frame locator for the screen cloth photosensitive lithographic of fixed platen PLATE SCREAM PRINTING, is characterized in that screen frame locator is made up of the fixed mount of circular cone push rod positioner (100), trapezoidal push rod positioner (200), the screen frame (300) that high-molecular photosensitive diaphragm screen net is installed, location screen frame;

Fixed mount adopts MC-8-4040B aluminium section bar, fixed mount comprises X-axis backstay (401), X-axis auxiliary positioning bar (402), the first Y-axis backstay (403), the second Y-axis backstay (404), the first Z axis backstay (405) and the second Z axis backstay (406)

X-axis backstay (401), X-axis auxiliary positioning bar (402), the first Y-axis backstay (403), the second Y-axis backstay (404) assembling form rectangular frame, the first Z axis backstay (405) and the second Z axis backstay (406) are placed on the first Y-axis backstay (403), the second Y-axis backstay (404)

The screen frame (300) that high-molecular photosensitive diaphragm screen net is installed adopts the rectangular aluminum section bar with arc, be called screen frame gulde edge, auxiliary positioning limit with X-axis backstay (401), screen frame limit that X-axis auxiliary positioning bar (402) is corresponding, the mid point that the mid point of screen frame gulde edge arranges positioning round orifice (301), auxiliary positioning limit arranges U-shaped locating slot (302);

Circular cone push rod positioner (100), trapezoidal push rod positioner (200) are separately positioned on the mid point of X-axis backstay (401), X-axis auxiliary positioning bar (402).

2. the screen frame locator of the screen cloth photosensitive lithographic of a kind of fixed platen PLATE SCREAM PRINTING according to claim 1, it is characterized in that described circular cone push rod positioner (100) comprises guide rod frame (101), guide rod (102), the first red luminotron (103), conical push rod (104), adjustment screw (105), hold-down screw (106), holddown plate (107), the first tetrafluoro slide (108), cushion block (109), the second tetrafluoro slide (110), spring (111), spring base (112), the first base (113), sliding shoe (114),

Guide rod (102) is through sliding shoe (114) one end through hole, and be arranged in guide rod frame (101), guide rod (102) and guide rod frame (101) are vertically fixed on the first base (113), holddown plate (107), the first tetrafluoro slide (108), cushion block (109), the second tetrafluoro slide (110) is fixed on the first base (113) by hold-down screw (106), by the first tetrafluoro slide (108) and the second tetrafluoro slide (110) clamping sliding shoe (114) other end, adjustment screw (105) regulates the gap of clamping sliding shoe (114), conical push rod (104) is vertically mounted on the outstanding dull and stereotyped upper plane of sliding shoe (114), spring (111) one end is arranged on spring base (112), spring base (112) is fixed on the first base (113), the other end of spring (111) withstands on the outstanding dull and stereotyped lower plane of sliding shoe (114), the first red luminotron (103) is embedded in the first base (113), positioning round orifice (301) is inserted in conical push rod (104).

3. the screen frame locator of the screen cloth photosensitive lithographic of a kind of fixed platen PLATE SCREAM PRINTING according to claim 1, it is characterized in that described trapezoidal pin-lift arrangement (200) comprises bearing housing screw (201), bearing bracket stand (202), single-row tapered roller bearing (203), axle (204), bridging piece set bolt (205), upper backup pad (206), the second base (207), bearing bracket stand set bolt (208), hold-down screw on spring (209), spring (210), bridging piece spring hold-down screw (211), trapezoidal push rod (212), bridging piece (213) and the second red luminotron (214),

Axle (204) two ends configure respectively single-row tapered roller bearing (203), and be arranged in bearing bracket stand (202), bearing bracket stand (202) is fixed on the second base (207), bearing housing screw (201) in regulating shaft bolster (202) makes axle (204) without axial motion and rotatable, bridging piece (213) is fixed on axle (204) by bridging piece set bolt (205), trapezoidal push rod (212) is fastenedly connected with bridging piece (213), and make the trapezoidal plane of symmetry of trapezoidal push rod (212) perpendicular to axle (204), upper backup pad (206) is arranged on bearing bracket stand by bearing bracket stand set bolt (208), bridging piece (213) can be around the rotation of the axle center of axle (204), its upper limit is that bridging piece (213) is encountered upper backup pad (206), the upper end of spring (210) hangs over hold-down screw on spring (209), this screw is fixed on upper backup pad (206) front, the lower end of spring (210) hangs on bridging piece spring hold-down screw (211), this screw is fixed on bridging piece (213) two sides, the second red luminotron (214) is arranged in upper backup pad (206), and U-shaped locating slot (302) is inserted in trapezoidal push rod (212).

4. a fast accurate localization method that uses screen frame locator as claimed in claim 1, is characterized in that comprising the printing method for platemaking under preparation adjusting process and the darkroom state under illumination condition;

Preparation adjusting process under illumination condition:

(1) make X-axis backstay (401), X-axis auxiliary positioning bar (402), the first Y-axis backstay (403), the second Y-axis backstay (404), the first Z axis backstay (405) and the second Z axis backstay (406) by printing technology requirement, demarcate the mid point of fixed mount X-axis backstay (401), X-axis auxiliary positioning bar (402), X-axis backstay (401), X-axis auxiliary positioning bar (402) form rectangular frame with the first Y-axis backstay (403), the second Y-axis backstay (404) assembling;

(2) circular cone push rod positioner (100), trapezoidal pin-lift arrangement (200) are separately positioned on the mid point of fixed mount X-axis backstay (401), X-axis auxiliary positioning bar (402), adopt laser or optical instrument adjustment circular cone push rod positioner and trapezoidal push rod positioner, make both X parameters identical, both distance is that Y parameter meets printing technology requirement;

(3) the first Z axis backstay (405) of fixed mount and the second Z axis backstay (406) are placed on the first Y-axis backstay (403), the second Y-axis backstay (404), adopt the height of laser or optical instrument adjustment the first Z axis backstay (405) and the second Z axis backstay (406), regulate Z plane by the height that regulates Y-axis backstay, make the Z parameter of the first Z axis backstay (405) and the second Z axis backstay (406) identical and meet printing technology requirement;

Printing method for platemaking under the state of darkroom is as follows:

(4) connect the first red luminotron (103), the second red luminotron (214), between shutoff operation, white-light illuminating, operation room enter darkroom state;

(5) positioning round orifice of screen frame gulde edge (301) is inserted in conical push rod (104), U-shaped locating slot (302) is inserted in trapezoidal push rod (212), the first Z axis backstay (405) that screen frame (300) is depressed, screen cloth is attached to fixed mount and upper formation of the second Z axis backstay (406) of high-molecular photosensitive diaphragm screen net is installed and prints plane;

(6) ink-jet printer is drawn as required on light-sensitive surface screen cloth, must be printed on the polymeric membrane screen cloth of hollow out decorative pattern after photochemical treatment.