Liftable loading-out type screen printing plate jig of roller structure

Abstract

The invention relates to a liftable loading-out type screen printing plate jig of a roller structure. The liftable loading-out type screen printing plate jig sequentially comprises a jig bottom plate, a lower screen printing plate bearing plate and an upper screen printing plate bearing plate from bottom to top. At least one air cylinder locking assembly used for locking the upper screen bearing plate is installed on the right side of the lower screen bearing plate. A screen printing plate concentric-square-shaped frame is installed on the top of the concentric-square-shaped frame fixing vertical plate and the top of the motor vertical plate through a concentric-square-shaped frame base plate. Through the three-layer structure of the supporting structure, the lifting structure and the carrying-out structure, feeding of the large screen frame is facilitated, and machining treatment is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field related to screen printing, and in particular to a lifting and unloading type screen jig with a roller structure. Background Art

[0002] Screen printing technology has been continuously improved since its origin in the 19th century, from materials to processes, and 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 photogenerated electricity through an external optical path to complete the entire process of solar cell photoelectric conversion.

[0003] Screen printing technology uses the basic principle that the electrode part of the screen is permeable to the slurry, while the non-electrode part is not permeable to the slurry. When the printing scraper moves along the screen, the slurry is pressed into the mesh. At the same time, the scraper shears the slurry. The slurry is thixotropic. Under the shear stress of the scraper, the viscosity decreases rapidly. At the moment when the scraper presses down the screen and contacts 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 force of the silicon wafer and gravity on the one hand, and the adhesion force 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.

[0004] 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.

[0005] In summary, the problems existing in the prior art are:

[0006] The loading operation of large screen frames is generally more difficult, and because large screen frames are made of aluminum castings, the processing error is often very large.

[0007] In view of the above-mentioned defects, the designer actively carried out research and innovation in order to create a roller structure that can be lifted and unloaded screen fixture to make it more valuable for industrial use. Summary of the invention

[0008] In order to solve any of the above technical problems, the purpose of the present invention is to provide a lifting and unloading type screen fixture with a roller structure.

[0009] To achieve the above object, the present invention adopts the following technical solution:

[0010] The roller structure can be lifted and unloaded screen fixture, which includes a fixture bottom plate, a screen lower bearing plate and a screen upper bearing plate from bottom to top;

[0011] A reducer and a motor are installed on the middle right side of the fixture base plate through a motor vertical plate. The motor is connected to the reducer and then connected to a precision screw through a coupling. The precision screw drives the fixture slide to move in the left and right directions. Slide groove mounting plates are installed on the fixture base plates on the front and rear sides of the fixture slide. Several slide grooves inclined from top to bottom are opened on the slide groove mounting plates. The front and rear sides of the fixture slide are respectively connected to the slide grooves through several pulley assemblies.

[0012] The slide mounting plate is connected to the upper screen lower bearing plate through a plurality of slide mounting side plates, and the front and rear sides of the bottom of the screen upper bearing plate respectively move along the left and right directions on the upper linear slide rails installed on the screen lower bearing plate through the upper bearing sliders;

[0013] At least one cylinder locking assembly for locking the upper screen bearing plate is installed on the right side of the lower screen bearing plate;

[0014] A return frame fixing vertical plate is installed on the right side of the fixture bottom plate, and a screen return frame is installed on the top of the return frame fixing vertical plate and the motor vertical plate through a return frame pad. Both the lower screen bearing plate and the upper screen bearing plate are provided with bearing through holes for the screen return frame to pass freely.

[0015] As a further improvement of the present invention, outer reinforcing ribs of the jig upright plate are installed on the fixed upright plate of the return frame at the bottom of the screen return frame, inner reinforcing ribs of the jig upright plate are installed on the jig bottom plate at the bottom of the return frame fixed upright plate, outer reinforcing ribs of the motor upright plate are installed on the motor upright plate at the bottom of the screen return frame, and inner reinforcing ribs of the motor upright plate are installed on the jig bottom plate at the bottom of the motor upright plate.

[0016] As a further improvement of the present invention, the bottom of the jig slide moves along the left-right direction on a lower linear slide rail installed on the jig base plate below through a plurality of slide sliders; a sensor sheet is installed at the bottom of the jig slide, a sensor mounting rail is installed on the jig base plate below the sensor sheet, and a plurality of sensors compatible with the above-mentioned sensor sheet are evenly installed on the sensor mounting rail along the left-right direction.

[0017] As a further improvement of the present invention, linear bearings are installed on all sides of the bottom plate of the jig, a guide shaft is installed in the linear bearing, the top of the guide shaft is installed on the bottom of the supporting plate under the screen, and a PU limit block is installed on the bottom of the supporting plate under the screen outside the guide shaft.

[0018] As a further improvement of the present invention, the pulley assembly includes a sliding shaft and a sliding bearing. The inner side of the sliding shaft is installed on the outer side of the fixture slide, and the outer side of the sliding shaft is installed with a sliding bearing, a shaft ring, a sliding bearing and a shaft retaining ring in sequence and then installed in the slide groove.

[0019] As a further improvement of the present invention, a buffer distributed along the left and right directions is installed on the lower screen support plate through a buffer installation block, and a buffer limit block compatible with the above-mentioned buffer is installed at the bottom of the screen upper support plate on one side of the buffer.

[0020] As a further improvement of the present invention, the cylinder locking assembly includes a thumb cylinder installed on the lower support plate of the screen through a thumb cylinder mounting plate. The thumb cylinder drives a locking block on one side to move in the left and right directions and rotate, and the locking block is adapted to the locking groove at the bottom of the upper support plate of the screen.

[0021] As a further improvement of the present invention, a micro switch and a micro switch limiter matched with the micro switch are also installed on the lower support plate of the screen.

[0022] As a further improvement of the present invention, a planar light source is installed in the screen return frame.

[0023] As a further improvement of the present invention, a plurality of screen limit blocks are sequentially installed on the screen upper bearing plate from the inside to the outside.

[0024] By means of the above scheme, the present invention has at least the following advantages:

[0025] The present invention facilitates the loading of large screen frames and processing through the three-layer structure of the supporting structure, the lifting structure and the carrying-out structure;

[0026] The present invention uses a lifting structure and a screen frame sinking method so that the pattern processing of the mesh will not be affected by the screen frame accuracy. In addition, because the lifting height can be adjusted, the sinking distance of the screen frame can be freely controlled, which can also ensure that the screen frame will not be subjected to too much tension and deformation to affect the processing. Finally, the plane accuracy of the fixture is achieved within ±5um.

[0027] The present invention converts horizontal force into vertical force through a mechanical structure, avoids vertical installation of the power source, greatly reduces the thickness of the fixture, and can ensure that the fixture can complete lifting, loading, unloading and other actions while having a very small overall thickness.

[0028] The present invention also has high compatibility, and can support a maximum processing format of 400x400 (mm), and can support large-scale screen frame processing of various specifications from 650x650 (mm), 750x750 (mm), 850x850 (mm), 1000x1000 (mm), and only needs to replace the screen limit block, and the quick change function can also be normally satisfied.

[0029] 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 in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] 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.

[0031] Figure 1 It is a structural schematic diagram of a lifting and unloading type screen fixture with a roller structure of the present invention;

[0032] Figure 2 yes Figure 1 A schematic diagram of the structure below after removing the lower screen bearing plate and the upper screen bearing plate;

[0033] Figure 3 yes Figure 2 A schematic diagram of the structure of the middle pulley assembly;

[0034] Figure 4 yes Figure 1 The schematic diagram of the structure below after removing the upper carrier plate of the screen;

[0035] Figure 5 yes Figure 1 Schematic diagram of the structure of the carrier plate on the middle screen.

[0036] The meanings of the various reference numerals in the figures are as follows.

[0037] Jig bottom plate 1, jig vertical plate outer reinforcement rib 2, return frame fixed vertical plate 3, jig vertical plate inner reinforcement rib 4, jig slide plate 5, pulley assembly 6, slide groove mounting side plate 7, lower linear slide rail 8, sensor mounting guide rail 9, sensor 10, precision screw 11, slide groove mounting plate 12, coupling 13, motor vertical plate inner reinforcement rib 14, motor vertical plate 15, motor vertical plate outer reinforcement rib 16, linear bearing 17, guide shaft 18, high-strength rubber limit block 19 , reducer 20, motor 21, sliding shaft 22, sliding bearing 23, shaft collar 24, shaft retaining ring 25, lower screen bearing plate 26, return frame pad 27, buffer mounting block 28, buffer 29, screen return frame 30, upper linear slide rail 31, buffer limit block 32, thumb cylinder 33, micro switch 34, micro switch limit plate 35, thumb cylinder mounting plate 36, upper screen bearing plate 37, plane light source 38, screen limit block 39. DETAILED DESCRIPTION

[0038] 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.

[0039] 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.

[0040] like Figure 1 to Figure 5 As shown, a roller structure liftable screen jig includes, from bottom to top, a jig bottom plate 1, a screen lower bearing plate 26 and a screen upper bearing plate 37. A plurality of screen limit blocks 39 are sequentially installed on the screen upper bearing plate 37 from inside to outside.

[0041] A reducer 20 and a motor 21 are installed on the middle right side of the jig base plate 1 through a motor vertical plate 15. The motor 21 is connected to the reducer 20 and then connected to the precision screw 11 through a coupling 13. The precision screw 11 drives the jig slide 5 to move in the left and right directions. Slide groove mounting plates 12 are installed on the jig base plate 1 on the front and rear sides of the jig slide 5. A plurality of slide grooves inclined from top to bottom are opened on the slide groove mounting plates 12. The front and rear sides of the jig slide 5 are respectively connected to the slide grooves through a plurality of pulley assemblies 6.

[0042] Linear bearings 17 are installed on all sides of the fixture base plate 1, and a guide shaft 18 is installed in the linear bearing 17. The top of the guide shaft 18 is installed on the bottom of the lower screen support plate 26, and a PU limit block 19 is installed on the bottom of the lower screen support plate 26 outside the guide shaft 18.

[0043] The bottom of the jig slide 5 moves along the left-right direction on the lower linear slide rail 8 installed on the jig base plate 1 below through a plurality of slide sliders; a sensor sheet is installed at the bottom of the jig slide 5, and a sensor mounting guide rail 9 is installed on the jig base plate 1 below the sensor sheet, and a plurality of sensors 10 compatible with the above-mentioned sensor sheet are evenly installed on the sensor mounting guide rail 9 along the left-right direction.

[0044] The slide mounting plate 12 is connected to the upper screen lower supporting plate 26 through a plurality of slide mounting side plates 7. The front and rear sides of the bottom of the screen upper supporting plate 37 move along the left and right directions on the upper linear slide rail 31 installed on the screen lower supporting plate 26 through the upper supporting slider.

[0045] The pulley assembly 6 includes a sliding shaft 22 and a sliding bearing 23. The inner side of the sliding shaft 22 is installed on the outer side of the fixture slide 5. The sliding bearing 23, the shaft ring 24, the sliding bearing 23 and the shaft retaining ring 25 are installed on the outer side of the sliding shaft 22 in sequence and then installed in the slide groove.

[0046] A return frame fixing vertical plate 3 is installed on the right side of the jig bottom plate 1, and a screen return frame 30 is installed on the top of the return frame fixing vertical plate 3 and the motor vertical plate 15 through the return frame pad 27. The lower screen bearing plate 26 and the upper screen bearing plate 37 are provided with bearing through holes for the screen return frame 30 to pass freely. A plane light source 38 is installed in the screen return frame 30. The outer side reinforcing ribs 2 of the jig vertical plate are installed on the return frame fixing vertical plate 3 at the bottom of the screen return frame 30, the inner side reinforcing ribs 4 of the jig vertical plate are installed on the jig bottom plate 1 at the bottom of the return frame fixing vertical plate 3, the outer side reinforcing ribs 16 of the motor vertical plate are installed on the motor vertical plate 15 at the bottom of the screen return frame 30, and the inner side reinforcing ribs 14 of the motor vertical plate are installed on the jig bottom plate 1 at the bottom of the motor vertical plate 15.

[0047] At least one cylinder locking assembly is installed on the right side of the lower screen bearing plate 26 for locking the upper screen bearing plate 37. The cylinder locking assembly includes a thumb cylinder 33 installed on the lower screen bearing plate 26 through a thumb cylinder mounting plate 36. The thumb cylinder 33 drives a locking block on one side to move in the left and right directions and rotate. The locking block is adapted to the locking groove at the bottom of the upper screen bearing plate 37.

[0048] Buffers 29 distributed along the left-right direction are installed on the lower screen bearing plate 26 through the buffer mounting block 28 , and a buffer limiting block 32 adapted to the above-mentioned buffer 29 is installed at the bottom of the upper screen bearing plate 37 on one side of the buffer 29 .

[0049] A micro switch 34 and a micro switch limiter 35 matched with the micro switch 34 are also installed on the lower screen bearing plate 26 .

[0050] The first embodiment of the present invention:

[0051] The present invention is mainly used for screen processing of large screen frames exceeding 650x650 (mm), and can support large screen frames of 1000x1000 (mm) at most.

[0052] The invention has a three-layer structure, which is divided into a lower layer supporting structure, a middle layer lifting structure and an upper layer carrying structure.

[0053] The lower structure is the supporting structure, the structure is as follows Figure 2 As shown. The fixture base plate 1 is installed on the XY motion module, the return frame fixed vertical plate 3 is installed on the fixture base plate 1, the fixture vertical plate outer reinforcing ribs 2 and the fixture vertical plate inner reinforcing ribs 4 are installed on both sides of the return frame fixed vertical plate 3, the motor vertical plate 15 is installed on the fixture base plate 1, the motor vertical plate inner reinforcing ribs 14 and the motor vertical plate outer reinforcing ribs 16 are installed on both sides of the motor vertical plate 15, the slide rail part of the lower linear slide 8 is installed on the fixture base plate 1, the slider part is locked with the fixture slide 5, the sensor mounting rail 9 is installed on the fixture base plate 1, the sensor 10 is installed on the top, and the precision screw 11 (with a mounting seat) is passed through The mounting seats on both sides are tightened on the fixture base plate 1, the end of the screw rod is connected to the coupling 13, and is connected to the reducer 20 after being tightened by the flat-end set screw. The reducer 20 body is tightened on the motor vertical plate 15, and the shaft end is connected to the coupling 13. The motor 21 is locked with the reducer 20, and the linear bearings 17 around are installed on the fixture base plate 1 by screws. The return frame pad 27 is locked on the return frame fixed vertical plate 3 and the motor vertical plate 15 by screws, the screen return frame 30 is locked on the return frame pad 27, and the plane light source 38 is placed in the screen return frame 30. The above constitutes the support structure of the fixture.

[0054] The middle structure is a lifting structure, the structure is as follows Figure 2 , 3 As shown in Figure 4: the side of the jig slide 5 is connected to the pulley assembly 6 (the sliding shaft 22 of the pulley assembly is rotated to the side of the jig slide 5, and after tightening, the bearing 23, the shaft ring 24, the bearing 23, and the shaft retaining ring 25 are sequentially inserted from the outside, and then tightened with corresponding screws, a total of four groups), the pulley assembly 6 is embedded in the slide groove mounting plate 12, and the two sides of the slide groove mounting plate 12 are respectively connected to the slide groove mounting side plates 7, and then connected to the lower screen bearing plate 26 through the screw holes on the top of the slide groove mounting side plates 7, and the PU limit block 19 is locked on the lower screen bearing plate 26 from the back. After the guide shaft 18 is inserted into the linear bearing 17, it is locked to the lower screen bearing plate 26 from the back. After the buffer mounting block 28 and the buffer 29 are installed together, they are locked to the front of the lower screen bearing plate 26. The slider part of the upper linear slide rail 31 is locked on the lower screen bearing plate 26, and the slide rail part is locked with the upper screen bearing plate 37 from the back. After the thumb cylinder 33 is installed on the thumb cylinder mounting plate 36 from the side, it is fixed to the lower screen bearing plate 26 by screws, and the micro switch 34 is installed on the lower screen bearing plate 26. The above constitutes the lifting structure of the fixture.

[0055] The upper structure is a load-out structure, the structure is as follows Figure 5 As shown, the upper screen carrying plate 37 is connected to the slide rail portion of the upper linear slide rail 31 and then connected to the limit block 32 and the micro switch limit plate 35, thereby forming a loading structure of the fixture.

[0056] Working principle of the present invention:

[0057] The whole set of jigs is built with the jig bottom plate 1 as the base plate, and the side plates are composed of the return frame fixing vertical plate 3 and the motor vertical plate 15, which are then reinforced by the inner and outer side reinforcing ribs on the side, and the return frame pad 27 is assembled on the top to form a whole. This structure is the supporting structure of the whole set of jigs, which is used to ensure the flatness of the jig. It is the part with the highest precision requirement for the entire jig. After this part is assembled, the screen return frame 30 will be installed. The screen return frame 30 has a top pulling structure with screws and top wires for fine-tuning the flatness. After fine-tuning, the flatness of the jig can be guaranteed to be within ±5um, which fully meets the requirements of laser processing. The power on the bottom of the fixture comes from the motor 21. The motor 21 outputs a large torque by connecting the reducer 20, and transmits the torque to the precision screw 11 through the coupling 13. The precision screw 11 will drive the fixture slide 5 to make a horizontal lateral movement along the axial direction of the screw, and at the same time drive the pulley assembly 6 to move. Under the guidance of the linear bearing 17 and the guide shaft 18, the pulley assembly 6 rolling in the limit groove of the 12. slide groove mounting plate will convert the horizontal force into a vertical force, and transmit it to the upper screen lower bearing plate 26 through the 7. slide groove mounting side plate, so that the whole structure can move up and down in the Z-axis direction to complete the transformation from horizontal movement to vertical movement; the upper screen bearing plate 37 is normally fastened by the thumb cylinder 33. When the thumb cylinder 33 is released, the upper screen bearing plate 37 can be pulled out to perform the loading action, and then the upper screen bearing plate 37 is pushed back to complete the loading work.

[0058] The workflow of the present invention is as follows:

[0059] The motor 21 provides driving force, and through the mechanism transmission, the lower screen bearing plate 26 performs lifting movement. After reaching the highest point, the thumb cylinder 33 is actuated to release the locked state of the upper screen bearing plate 37. At this time, the operator pulls out the upper screen bearing plate 37, and performs the loading action along the left front side fixture screen limit block 39. After completion, the upper screen bearing plate 37 is pushed back, and the micro switch limit plate 35 touches the micro switch 34. After the arrival signal is transmitted, the thumb cylinder 33 is actuated to lock the upper screen bearing plate 37. The motor 21 works and drives the lower screen bearing plate 26 to descend through the mechanism. At this time, the mesh surface carried by the screen frame contacts the screen return frame 30. At this time, it continues to descend and stops at a position about 2 to 3 mm lower than the upper surface of the screen frame. The tension of the mesh makes the mesh tight on the screen return frame 30 without being affected by the mesh frame. At this time, processing begins. After the processing is completed, the process is reversed to perform the loading action.

[0060] Large screen frames make it difficult for operators to load materials. The present invention provides a better solution for loading large screen frames.

[0061] Since large screen frames are made of cast aluminum, the processing error is often very large, at the millimeter level, while the error requirement for laser processing is at the micron level. This invention uses a lifting structure and reverse thinking to fix the mesh and sink the screen frame, so that the pattern processing of the mesh will not be affected by the accuracy of the screen frame. In addition, because the lifting height can be adjusted, the sinking distance of the screen frame can be freely controlled, which can also ensure that the screen frame will not be subjected to too much tension and deformation that will affect the processing. Finally, the plane accuracy of the fixture is achieved within ±5um.

[0062] The fixture slideway of the present invention is subjected to special heat treatment so that the material itself has greater hardness, and is electroplated to have higher wear resistance. In addition, a margin is left for the upper and lower limit travels during design, and the pulley has a gentle distance at the bottom or top to facilitate deceleration and braking, thereby ensuring the life of the parts.

[0063] The present invention has achieved good weight reduction, which can ensure that the whole set of fixtures can withstand a large load, while not being too heavy to cause a large workload on the motion platform below.

[0064] The present invention converts horizontal force into vertical force through a mechanical structure, avoids vertical installation of the power source, greatly reduces the thickness of the fixture, and can ensure that the fixture can complete lifting, loading, unloading and other actions while having a very small overall thickness.

[0065] The present invention also has high compatibility, and can support a maximum processing format of 400x400 (mm), and can support large-scale screen frame processing of various specifications from 650x650 (mm), 750x750 (mm), 850x850 (mm), 1000x1000 (mm), and only needs to replace the screen limit block, and the quick change function can also be normally satisfied.

[0066] The three-layer structure of supporting structure, lifting structure and carrying out structure facilitates the loading of large screen frames and processing;

[0067] Through the lifting structure and the sinking of the screen frame, the pattern processing of the mesh will not be affected by the accuracy of the screen frame. And because the lifting height can be adjusted, the sinking distance of the screen frame can be freely controlled, which can also ensure that the screen frame will not be subjected to too much tension and deformation to affect the processing. Finally, the plane accuracy of the fixture is within ±5um.

[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 roller structured lifting and unloading type screen jig, comprising, from bottom to top, a jig bottom plate (1), a screen lower bearing plate (26) and a screen upper bearing plate (37); characterized in that: A reducer (20) and a motor (21) are installed on the middle right side of the jig base plate (1) through a motor vertical plate (15); the motor (21) is connected to the reducer (20) and then connected to a precision screw (11) through a coupling (13); the precision screw (11) drives the jig slide (5) to move in the left and right directions; a slide groove mounting plate (12) is installed on the jig base plate (1) on both the front and rear sides of the jig slide (5); a plurality of slide grooves inclined from top to bottom are provided on the slide groove mounting plate (12); and the front and rear sides of the jig slide (5) are respectively connected to the slide grooves through a plurality of pulley assemblies (6); The slide groove mounting plate (12) is connected to the upper screen lower bearing plate (26) through a plurality of slide groove mounting side plates (7), and the front and rear sides of the bottom of the screen upper bearing plate (37) are respectively moved along the left and right directions on the upper linear slide rails (31) mounted on the screen lower bearing plate (26) through the upper bearing sliders; At least one cylinder locking assembly for locking the upper screen bearing plate (37) is installed on the right side of the lower screen bearing plate (26); A return frame fixing vertical plate (3) is installed on the right side of the jig bottom plate (1), a screen return frame (30) is installed on the top of the return frame fixing vertical plate (3) and the motor vertical plate (15) through a return frame pad (27), and a bearing through hole for the screen return frame (30) to pass freely is opened in the lower screen bearing plate (26) and the upper screen bearing plate (37).

2. The lifting and unloading type screen jig with roller structure as claimed in claim 1, characterized in that: A jig stand plate outer reinforcing rib (2) is installed on the return frame fixed upright plate (3) at the bottom of the screen return frame (30), a jig stand plate inner reinforcing rib (4) is installed on the jig bottom plate (1) at the bottom of the return frame fixed upright plate (3), a motor stand plate outer reinforcing rib (16) is installed on the motor stand plate (15) at the bottom of the screen return frame (30), and a motor stand plate inner reinforcing rib (14) is installed on the jig bottom plate (1) at the bottom of the motor stand plate (15).

3. The lifting and unloading type screen jig with roller structure as claimed in claim 1, characterized in that: The bottom of the jig slide plate (5) moves in the left-right direction on a lower linear slide rail (8) installed on the jig base plate (1) below via a plurality of slide block sliders; a sensor sheet is installed at the bottom of the jig slide plate (5), a sensor installation guide rail (9) is installed on the jig base plate (1) below the sensor sheet, and a plurality of sensors (10) compatible with the above-mentioned sensor sheet are evenly installed on the sensor installation guide rail (9) along the left-right direction.

4. The lifting and unloading type screen jig with roller structure as claimed in claim 1, characterized in that: Linear bearings (17) are installed on all four sides of the fixture base plate (1), a guide shaft (18) is installed in the linear bearing (17), the top of the guide shaft (18) is installed on the bottom of the lower screen support plate (26), and a high-strength rubber limit block (19) is installed on the bottom of the lower screen support plate (26) outside the guide shaft (18).

5. The lifting and unloading type screen jig of the roller structure according to claim 1, characterized in that: The pulley assembly (6) comprises a sliding shaft (22) and a sliding bearing (23). The inner side of the sliding shaft (22) is mounted on the outer side of the fixture slide plate (5). The sliding bearing (23), the shaft ring (24), the sliding bearing (23) and the shaft retaining ring (25) are sequentially mounted on the outer side of the sliding shaft (22) and then mounted in the slide groove.

6. The lifting and unloading type screen jig of the roller structure according to claim 1, characterized in that: A buffer (29) distributed along the left-right direction is installed on the lower screen bearing plate (26) via a buffer mounting block (28), and a buffer limiting block (32) adapted to the buffer (29) is installed at the bottom of the upper screen bearing plate (37) on one side of the buffer (29).

7. The lifting and unloading type screen jig of the roller structure according to claim 1, characterized in that: The cylinder locking assembly comprises a thumb cylinder (33) mounted on a lower screen bearing plate (26) via a thumb cylinder mounting plate (36), wherein the thumb cylinder (33) drives a locking block on one side to move in a left-right direction and to rotate, and the locking block is adapted to a locking groove at the bottom of an upper screen bearing plate (37).

8. The lifting and unloading type screen jig of the roller structure according to claim 1, characterized in that: A micro switch (34) and a micro switch limit plate (35) adapted to the micro switch (34) are also installed on the lower screen bearing plate (26).

9. The lifting and unloading type screen jig of the roller structure according to claim 1, characterized in that: A planar light source (38) is installed in the screen return frame (30).

10. The lifting and unloading type screen jig of the roller structure according to claim 1, characterized in that: A plurality of screen limit blocks (39) are installed in sequence from the inside to the outside on the screen upper bearing plate (37).

Images