Lock-free quick-change screen printing plate jig of sliding block structure

Abstract

The invention relates to a lock-free quick-change screen printing plate jig of a sliding block structure. The lock-free quick-change screen printing plate jig sequentially comprises a jig bottom plate and a screen printing plate jig supporting plate from bottom to top. The middle of the screen jig supporting plate is provided with a screen concentric-square-shaped frame mechanism through a concentric-square-shaped frame supporting plate mechanism, a plane light source is installed on the jig bottom plate on the lower portion in the screen concentric-square-shaped frame mechanism, and a plurality of screen limiting columns and a plurality of screen supporting columns are further included; an air cylinder jacking assembly is installed in the middle of at least one side of the screen printing plate jig supporting plate. The jig disclosed by the invention is used for processing the screen printing plates with various boundary dimensions and large processing breadth difference, and is maximally used for processing the screen frame with the size of 550 * 550 (mm).

Description

Technical Field

[0001] The invention relates to the technical field related to screen printing, and in particular to a non-locking quick-change screen fixture with a slider structure. Background Art

[0002] Screen printing technology has been continuously improved from materials to processes since its origin in the 19th century. It is currently widely used in screen printing in the photovoltaic industry. Screen printing is to form positive and negative electrodes and back electric fields on the front and back of the battery through printing and sintering, and then conduct the photoelectricity through an external optical path to complete the entire process of solar cell photoelectric conversion. Screen printing technology uses the basic principle that the electrode part of the screen is transparent to the slurry, and the non-electrode part is not transparent to the slurry. When the printing scraper moves along the screen, the slurry is pressed into the mesh. At the same time, the scraper produces a shear effect on the slurry. The slurry is thixotropic. Under the shear stress of the scraper, the viscosity decreases rapidly. At the moment when the scraper presses the screen to contact the silicon wafer, the slurry in the mesh also contacts the silicon wafer. When the scraper passes over the screen, the screen is quickly reset by elastic force and the silicon wafer is out of contact. At this time, the slurry in the mesh is affected by the downward adhesion of the silicon wafer and gravity on the one hand, and the adhesion of the screen on the other hand. However, since the viscosity of the slurry is very low at this time, the force exerted by the screen on it is much smaller than the downward force. Therefore, during the rebound of the screen, the slurry in the mesh is transferred to the silicon wafer.

[0003] The widespread application of screen printing technology in the photovoltaic industry has led to a surge in demand for screens, and the complexity and fineness of screen patterns have also greatly increased. Therefore, laser processing technology has begun to be widely used in the processing of screen patterns. The high-precision and high-efficiency processing characteristics of lasers have put forward higher requirements on the equipment and tooling.

[0004] In the process of processing large screen frames, there are many types of screen sizes, and the jigs need to be replaced frequently.

[0005] In view of the above-mentioned defects, the designers have actively carried out research and innovation in order to create a non-locking quick-change screen fixture with a slider structure to make it more valuable for industrial use. Summary of the invention

[0006] In order to solve the above technical problems, the purpose of the present invention is to provide a non-locking quick-change screen fixture with a slider structure.

[0007] To achieve the above object, the present invention adopts the following technical solution:

[0008] The non-locking quick-change screen jig of the slider structure includes, from bottom to top, a jig bottom plate and a screen jig support plate;

[0009] A screen return frame mechanism is installed in the middle of the screen jig support plate through a return frame support plate mechanism, a plane light source is installed on the jig bottom plate below the screen return frame mechanism, and also includes a plurality of screen limit columns and a plurality of screen support columns;

[0010] A cylinder tightening assembly is installed in the middle of at least one side of the screen jig support plate. The cylinder tightening assembly includes a tightening cylinder and a screen push rod. The tightening cylinder is installed on the screen jig support plate through a cylinder mounting plate. The tightening cylinder drives the screen push rod to move toward or away from the inner screen return frame mechanism. A plurality of buffer blocks are installed on the inner side of the screen push rod.

[0011] As a further improvement of the present invention, the screen return frame mechanism is a first screen return frame, which is installed on the screen fixture support plate through a first return frame support plate, and a plurality of screen limiting columns and a plurality of screen support columns are installed on the screen fixture support plate outside the first screen return frame.

[0012] As a further improvement of the present invention, the screen return frame mechanism is a second screen return frame, the second screen return frame is installed on the screen jig support plate through a second return frame pad and a second return frame support plate, and a plurality of screen limit columns are installed on the screen jig support plate outside the second return frame support plate.

[0013] As a further improvement of the present invention, the screen return frame mechanism is a third screen return frame, which is installed on the screen fixture support plate through a third return frame pad and a third return frame support plate, and a plurality of screen limit columns and a plurality of screen support columns are installed on the third return frame support plate.

[0014] As a further improvement of the present invention, the screen return frame mechanism is a fourth screen return frame, which is installed on the screen fixture support plate through a fourth return frame support plate, and a plurality of screen limiting columns and a plurality of screen support columns are installed on the fourth return frame support plate.

[0015] As a further improvement of the present invention, the screen return frame mechanism is a fifth screen return frame, which is installed on the screen fixture support plate through a fifth return frame pad and a fifth return frame support plate, and a plurality of screen limit columns and a plurality of screen support columns are installed on the fifth return frame support plate.

[0016] As a further improvement of the present invention, the screen return frame mechanism is a sixth screen return frame, the sixth screen return frame is installed on the screen fixture support plate through the sixth return frame support plate, a number of screen limiting columns are installed on the sixth return frame support plate, and a number of screen support columns are installed on the screen fixture support plate outside the sixth return frame support plate.

[0017] As a further improvement of the present invention, a power meter is installed on one side of the fixture bottom plate through a power meter mounting plate.

[0018] As a further improvement of the present invention, a lower slide plate is installed on the screen fixture support plate below the screen push rod, the screen push rod moves on the lower slide plate below, and the knob plunger installed in the middle of the screen push rod is locked with the lower slide plate below.

[0019] As a further improvement of the present invention, a plurality of marking scale layers are provided on the screen jig support plate.

[0020] By means of the above scheme, the present invention has at least the following advantages:

[0021] The jig of the present invention is used for processing screens with various external dimensions and greatly different processing widths, and is used for processing screen frames of up to 550x550 (mm).

[0022] The jig of the present invention has high compatibility and flexibility in use.

[0023] The present invention facilitates loading and unloading of materials and replacement of jigs by operators under the premise of high compatibility.

[0024] After the jig of the present invention is replaced, it can be used normally without adjustment or only with fine adjustment, so as to meet the requirement that the flatness of the mesh is within ±5um after the screen is loaded.

[0025] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention with accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 is a front view of a first embodiment of the present invention;

[0028] Figure 2 yes Figure 1 Axonometric view of

[0029] Figure 3 is an isometric view of a second embodiment of the present invention;

[0030] Figure 4 is an isometric view of a third embodiment of the present invention;

[0031] Figure 5 is an isometric view of a fourth embodiment of the present invention;

[0032] Figure 6 is an isometric view of a fifth embodiment of the present invention;

[0033] Figure 7 is an isometric view of a sixth embodiment of the present invention;

[0034] Figure 8 This is a schematic diagram of 550mm*550mm screen processing;

[0035] Fig. 9 This is a schematic diagram of 450mm*450mm screen processing;

[0036] Fig.10 This is a schematic diagram of 410mm*410mm screen processing;

[0037] Fig.11 This is a schematic diagram of 380mm*380mm screen processing;

[0038] Fig.12 This is a schematic diagram of 356mm*356mm screen processing;

[0039] Fig.13 This is a schematic diagram of 300mm*450mm screen processing.

[0040] The meanings of the various reference numerals in the figures are as follows.

[0041] Fixture bottom plate 1, plane light source 2, screen fixture support plate 3, first screen return frame 4, first return frame support plate 5, screen limit column 6, power meter 7, power meter mounting plate 8, screen support column 9, cylinder mounting plate 10, tightening cylinder 11, lower slide plate 12, screen push rod 13, knob plunger 14, buffer block 15, second return frame support plate 16, second return frame pad 17, second screen return frame 18, third return frame support plate 19, third return frame pad 20, third screen return frame 21, fourth return frame support plate 22, fourth screen return frame 23, fifth return frame support plate 24, fifth return frame pad 25, fifth screen return frame 26, sixth return frame support plate 27, sixth screen return frame 28, marking scale layer 29, screen 30. DETAILED DESCRIPTION

[0042] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0043] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiment of the present invention, rather than all the embodiments. The components of the embodiment of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiment of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents the selected embodiment of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present invention.

[0044] like Figures 1 to 13 As shown, a non-locking quick-change screen jig with a slider structure includes, from bottom to top, a jig base plate 1 and a screen jig support plate 3. A screen return frame mechanism is installed in the middle of the screen jig support plate 3 through a return frame support plate mechanism, a plane light source 2 is installed on the jig base plate 1 below the screen return frame mechanism, and also includes a plurality of screen limit columns 6 and a plurality of screen support columns 9.

[0045] A cylinder tightening assembly is installed in the middle of at least one side of the screen jig support plate 3. The cylinder tightening assembly includes a tightening cylinder 11 and a screen push rod 13. The tightening cylinder 11 is installed on the screen jig support plate 3 through a cylinder mounting plate 10. The tightening cylinder 11 drives the screen push rod 13 to move toward or away from the inner screen return frame mechanism. A plurality of buffer blocks 15 are installed on the inner side of the screen push rod 13. A lower slide plate 12 is installed on the screen jig support plate 3 below the screen push rod 13. The screen push rod 13 moves on the lower lower slide plate 12. The knob plunger 14 installed in the middle of the screen push rod 13 is locked with the lower lower slide plate 12 below.

[0046] like Figure 1 and Figure 2 , the first embodiment of the present invention:

[0047] The screen return frame mechanism is a first screen return frame 4, which is installed on the screen fixture support plate 3 through a first return frame support plate 5. A number of screen limiting columns 6 and a number of screen support columns 9 are installed on the screen fixture support plate 3 outside the first screen return frame 4.

[0048] like Figure 3 , the second embodiment of the present invention:

[0049] The screen return frame mechanism is a second screen return frame 18, which is installed on the screen fixture support plate 3 through a second return frame pad 17 and a second return frame support plate 16. A number of screen limiting columns 6 are installed on the screen fixture support plate 3 outside the second return frame support plate 16.

[0050] like Figure 4 , the third embodiment of the present invention:

[0051] The screen return frame mechanism is a third screen return frame 21, which is installed on the screen fixture support plate 3 through a third return frame pad 20 and a third return frame support plate 19, and a plurality of screen limit columns 6 and a plurality of screen support columns 9 are installed on the third return frame support plate 19.

[0052] like Figure 5 , the fourth embodiment of the present invention:

[0053] The screen return frame mechanism is a fourth screen return frame 23 , which is mounted on the screen fixture support plate 3 via a fourth return frame support plate 22 , on which a plurality of screen limiting columns 6 and a plurality of screen support columns 9 are mounted.

[0054] like Figure 6 , the fifth embodiment of the present invention:

[0055] The screen return frame mechanism is the fifth screen return frame 26, which is installed on the screen fixture support plate 3 through the fifth return frame pad 25 and the fifth return frame support plate 24, and a plurality of screen limiting columns 6 and a plurality of screen support columns 9 are installed on the fifth return frame support plate 24.

[0056] like Figure 7 , the sixth embodiment of the present invention:

[0057] The screen return frame mechanism is the sixth screen return frame 28, which is installed on the screen fixture support plate 3 through the sixth return frame support plate 27. A number of screen limiting columns 6 are installed on the sixth return frame support plate 27, and a number of screen support columns 9 are installed on the screen fixture support plate 3 outside the sixth return frame support plate 27.

[0058] A power meter 7 is mounted on one side of the fixture bottom plate 1 through a power meter mounting plate 8. A plurality of marking scale layers 29 are arranged on the screen fixture support plate 3.

[0059] The present invention is installed on the XY motion module, and the screen jig support plate 3 is installed on the jig base plate 1 to form the basic structure of the present invention. A plane light source 2 is placed on the screen jig support plate 3, and the line of the plane light source 2 goes out from the back groove reserved at the bottom of the jig base plate 1.

[0060] The first return frame support plate 5 (450 & 550mm) is installed on the screen jig support plate 3, and the first screen return frame 4 (450 & 550mm) is installed on the first return frame support plate 5 (450 & 550mm). All the reserved top screw holes on the first screen return frame 4 (450 & 550mm) are installed with M4x6 flat-end set screws to form a top-pull structure. The power meter 7 is first locked to the power meter mounting plate 8, and then the whole body and the power meter mounting plate 8 are locked to the rear of the screen jig support plate 3. The cylinder mounting plate 10 is locked On the screen jig support plate 3, a tightening cylinder 11 is installed above it, and a lower slide plate 12 is installed on the tightening cylinder 11. There is a non-tightening structure above the lower slide plate 12. The knob plunger 14 is first screwed onto the screen push rod 13 through a thread, and the buffer block 15 is screwed to both sides of the screen push rod 13 to form a whole. First, pull up the knob plunger 14, and push the whole structure in from the rear of the lower slide plate 12 along the slide groove at the bottom of the screen push rod 13. Place the pulled-up knob plunger 14 in a suitable pin hole according to product requirements to complete the assembly of the standard jig. Tighten the second screen return frame 18 (410mm), the second return frame pad 17 (410mm), and the second return frame support plate 16 (410mm) from top to bottom in sequence, and embed M4x6 flat-end set screws in the second screen return frame 18 (410mm). Similarly, tighten the third screen return frame 21 (380mm), the third return frame pad 20 (380mm), and the third return frame support plate 19 from top to bottom in sequence. Insert M4x6 flat end set screws into the screen return frame 21 (380mm), lock the fourth screen return frame 23 (356) and the fourth return frame support plate 22 (356mm) together, then insert M4x6 flat end set screws, tighten the fifth screen return frame 26 (320mm), the fifth return frame pad 25 (320mm), and the fifth return frame support plate 24 (320mm) from top to bottom, and then tighten them in the fifth screen return frame 26 (320m m), bury the M4x6 flat-end set screws, lock the sixth screen return frame 28 (300&450mm) and the sixth return frame support plate 27 (300&450mm) together, and then bury the M4x6 flat-end set screws. The above is the unit structure of the quick-change fixture, each of which is a unit. When replacement is required, use the four screw holes at the four corners of each return frame support plate and the screen fixture support plate 3 to screw them together; the screen support column 9 and the screen limit column 6 are based on the product size. It is screwed to the screen jig support plate 3 or the screen jig support plate (including the first return frame support plate 5 (450&550mm), the second return frame support plate 16 (410mm), the third return frame support plate 19 (380mm), the fourth return frame support plate 22 (356mm), the fifth return frame support plate 24 (320mm), the sixth return frame support plate 27 (300&450mm), which will not be repeated).

[0061] Working principle of the present invention:

[0062] The fixture bottom plate 1 and the screen fixture support plate 3, on which a flat light source 2 is installed, constitute the base part of the carrier. The flatness and horizontality must be achieved before installation. The screen fixture support plate 3 is the upper installation structure. The tightening cylinder 11 is installed on the cylinder mounting plate 10, together with the lower slide plate 12 above, forming a non-removable structure for cylinder pushing. The power meter 7 is installed on the power meter mounting plate 8 and then installed on the back of the screen fixture support plate 3 to form a power measurement component for power measurement. The above parts will not be disassembled when replacing the product, and the power measurement is done in a avoidance position to avoid interference. The screen push rod 13, the knob plunger 14, and the buffer block 15 form a detachable and slidable overall structure, on the lower slide plate The upper surface of 12 is laser-etched with character marks for positioning the push structure. The cross-sectional shape of the lower slide plate 12 is consistent with the shape of the slide groove at the bottom of the screen push rod 13 to form a guide. By controlling the roughness of the upper surface of the lower slide plate 12 and the inner surface of the slide groove at the bottom of the screen push rod 13, the shape and position tolerances of the two side surfaces of the lower slide plate 12 and the inner side of the slide groove of the screen push rod 13, the entire push structure slides smoothly, with minimal left and right deflection, and is reliable and durable. A threaded hole for assembling the knob plunger 14 is opened on the upper part of the screen push rod 13. By adjusting the installation height of the knob plunger 14, the knob plunger 14 will not exceed the upper surface of the slide groove at the bottom of the screen push rod 13 when pulled up, and can smoothly extend into the upper side of the lower slide plate 12 when lowered. The positioning pin hole is in the positioning pin hole, so that the quick change process can be completed without removing the cylinder and other related screws; the screen return frame installed above the screen fixture support plate 3 (including the first screen return frame 4 (450&550mm), the second screen return frame 18 (410mm), the third screen return frame 21 (380mm), the fourth screen return frame 23 (356mm), the fifth screen return frame 26 (320mm), the sixth screen return frame 28 (300450mm), not to be repeated) structure is used for supporting product screen frames. Through standardized design, the screw holes on the return frame support plate are the same, which is convenient for operators to replace, and after replacement, due to the return frame support plate itself The flatness is high, and the screen return frame and the screen support plate are pre-leveled with the top pulling structure of screws and top screws, so that there is almost no need for secondary leveling after replacement. It can be used after confirmation by the visual positioning and height measurement of the equipment, which is convenient and quick; the screen support column 9 and the screen limit column 6 are used for different products. The standard perforated product can use the screen support column 9 for positioning. The compatible hole positions of the screen support column 9 are reserved on the screen fixture support plate 3. Standard non-porous products or non-standard products can use the screen limit column 6 for positioning, and they can also be used in combination. They can be flexibly installed and used according to actual conditions. The height design of the screen limit column 6 takes into account the loading of various products, and it can be used without disassembly in some cases.

[0063] The present invention has a highly portable quick-change method. The cylinder push assembly installed at the rear of the fixture is inside the equipment, and the operator needs to reach into the equipment to replace it. The previous fixture could only meet the compatibility requirements. The new fixture solves the quick-change requirements while meeting the high compatibility. The quick change can be achieved by pulling out the knob and sliding the plunger, which is extremely convenient.

[0064] The present invention has an excellent fool-proof design. The engraved lines and character markings on the front side of the fixture, together with the character markings on the return frame support plate, can remind the operator that the current loading product (screen 30) is equipped with a correct screen return frame. There is also a window design on the screen push rod, which can clearly tell the operator which position the current screen push rod has slid to.

[0065] The present invention has high compatibility from bottom to top and flexibility of use. According to the size of the screen, for example, holes for support columns and limit columns of 356x356mm screen frames and 380x380 screen frames are reserved on the return frame support plate used in conjunction with the 320x320 screen frame, and the height of the screen return frame is also matched with it, which can facilitate the operator to directly load and process on the premise of meeting the processing format without replacing the screen return frame. The whole set of fixtures is designed in this way. At present, the fixture is compatible with screen frame sizes of 300x450 (mm), 320x320 (mm), 356x356 (mm), 380x380 (mm), 410x410 (mm), 450x450 (mm), and 550x550 (mm).

[0066] The jig of the present invention is used for processing screens with various external dimensions and processing widths, and is used for processing screen frames of up to 550x550 (mm). It has high compatibility and flexibility in use. Under the premise of high compatibility, it is convenient for operators to load and unload materials and replace jigs. After the jig is replaced, it can be used normally without adjustment or only with fine-tuning, so as to meet the requirement that the flatness of the mesh is within ±5um after the screen is loaded.

[0067] The present invention has a compact structure and reasonable space utilization. In the past, the cylinder of the compatible jig was suspended behind the entire set of jigs and protruded a lot, which was extremely inconsistent as a whole. The present invention does not use the extension of the cylinder as a thrust, but uses the retraction of the cylinder as a thrust. By thinking in reverse, the cylinder structure is stored under the jig itself, which greatly reduces the size of the jig, so that a smaller equipment structure can also accommodate the jig.

[0068] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implying the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0069] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0070] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the technical principles of the present invention, and these improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A non-locking quick-change screen jig with a slider structure, comprising, from bottom to top, a jig base plate (1) and a screen jig support plate (3); Features: A screen return frame mechanism is installed in the middle of the screen jig support plate (3) through a return frame support plate mechanism, a planar light source (2) is installed on the jig bottom plate (1) below the screen return frame mechanism, and also includes a plurality of screen limit columns (6) and a plurality of screen support columns (9); A cylinder tightening assembly is installed in the middle of at least one side of the screen jig support plate (3), and the cylinder tightening assembly comprises a tightening cylinder (11) and a screen push rod (13). The tightening cylinder (11) is installed on the screen jig support plate (3) through a cylinder mounting plate (10). The tightening cylinder (11) drives the screen push rod (13) to move toward or away from the inner screen return frame mechanism. A plurality of buffer blocks (15) are installed on the inner side of the screen push rod (13).

2. The non-locking quick-change screen fixture with a slider structure as claimed in claim 1, characterized in that: The screen return frame mechanism is a first screen return frame (4), the first screen return frame (4) is mounted on a screen jig support plate (3) via a first return frame support plate (5), and a plurality of screen limit columns (6) and a plurality of screen support columns (9) are mounted on the screen jig support plate (3) outside the first screen return frame (4).

3. The non-locking quick-change screen fixture with a slider structure as claimed in claim 1, characterized in that: The screen return frame mechanism is a second screen return frame (18), the second screen return frame (18) is mounted on a screen jig support plate (3) via a second return frame pad (17) and a second return frame support plate (16), and a plurality of screen limiting columns (6) are mounted on the screen jig support plate (3) outside the second return frame support plate (16).

4. The non-locking quick-change screen fixture with a slider structure as claimed in claim 1, characterized in that: The screen return frame mechanism is a third screen return frame (21), and the third screen return frame (21) is installed on the screen fixture support plate (3) through a third return frame pad (20) and a third return frame support plate (19), and a plurality of screen limit columns (6) and a plurality of screen support columns (9) are installed on the third return frame support plate (19).

5. The non-locking quick-change screen fixture with a slider structure as claimed in claim 1, characterized in that: The screen return frame mechanism is a fourth screen return frame (23), the fourth screen return frame (23) is mounted on a screen fixture support plate (3) via a fourth return frame support plate (22), and a plurality of screen limit columns (6) and a plurality of screen support columns (9) are mounted on the fourth return frame support plate (22).

6. The non-locking quick-change screen fixture with a slider structure as claimed in claim 1, characterized in that: The screen return frame mechanism is a fifth screen return frame (26), the fifth screen return frame (26) is mounted on a screen fixture support plate (3) via a fifth return frame pad (25) and a fifth return frame support plate (24), and a plurality of screen limit columns (6) and a plurality of screen support columns (9) are mounted on the fifth return frame support plate (24).

7. The non-locking quick-change screen fixture with a slider structure as claimed in claim 1, characterized in that: The screen return frame mechanism is a sixth screen return frame (28), the sixth screen return frame (28) is mounted on a screen jig support plate (3) via a sixth return frame support plate (27), a plurality of screen limit columns (6) are mounted on the sixth return frame support plate (27), and a plurality of screen support columns (9) are mounted on the screen jig support plate (3) outside the sixth return frame support plate (27).

8. The non-locking quick-change screen fixture with a slider structure as claimed in claim 1, characterized in that: A power meter (7) is mounted on one side of the fixture base plate (1) via a power meter mounting plate (8).

9. The non-locking quick-change screen fixture with a slider structure as claimed in claim 1, characterized in that: A lower slide plate (12) is installed on the screen jig support plate (3) below the screen push rod (13), and the screen push rod (13) moves on the lower slide plate (12) below, and a knob plunger (14) installed in the middle of the screen push rod (13) is locked with the lower slide plate (12) below.

10. The non-locking quick-change screen fixture with a slider structure as claimed in claim 1, characterized in that: A plurality of marking scale layers (29) are arranged on the screen jig support plate (3).

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