Printing machine screen frame flatness detection equipment

Abstract

The present invention provides a flatness detection device for a screen frame of a printing machine, which belongs to the technical field of flatness detection, and includes a distance measuring system and a support system. The distance measuring system has four guide seats connected end to end and enclosed in a square shape, a distance measuring part corresponding to the guide seats one by one, and a power unit that enables the distance measuring part to move along the length direction of the guide seats, and the distance measuring part is used to measure the distance from itself to the installation surface; the support system has four fixed plates parallel to the horizontal plane, the four fixed plates are arranged at intervals and are used to receive the four corners of the screen frame, and the fixed plates are located above the guide seats and fixedly connected to the ends of the guide seats. The present invention improves the detection efficiency of the screen frame.

Description

Technical Field

[0001] The invention belongs to the technical field of flatness detection, and in particular relates to a flatness detection device for a screen frame of a printing machine. Background Art

[0002] The screen frame of a printing press is a frame that supports the screen and is an important component of the printing press. The flatness of the screen frame directly determines the contact state between the screen and the substrate during printing. If the flatness of the screen frame is poor, the screen may deform or move during the printing process, resulting in low printing accuracy. Therefore, it is necessary to test the flatness of the screen frame.

[0003] The flatness test of the screen frame mainly tests the installation surface or printing surface of the screen frame (that is, the surface in contact with the printed material). Currently, a feeler gauge is usually used to test the flatness of the screen frame. After the screen frame is placed on the reference plane, if the specified feeler gauge cannot be inserted between the screen frame and the reference plane, the flatness of the screen frame is qualified.

[0004] The screen frame has four sides, and all four sides of the screen frame need to verify whether the feeler gauge can be inserted between the reference plane and the screen frame. There are also many points on one side of the screen frame that need to be verified. Therefore, it takes a lot of time to detect the flatness of a screen frame, so there is a defect of low detection efficiency. Summary of the invention

[0005] The embodiment of the present invention provides a printing machine screen frame flatness detection device, aiming to solve the technical problem of low detection efficiency.

[0006] To achieve the above object, the technical solution adopted by the present invention is: to provide a printing machine screen frame flatness detection device, which is suitable for a screen frame with a mounting surface, comprising:

[0007] The distance measuring system comprises four guide seats connected end to end and forming a square, distance measuring parts corresponding to the guide seats one by one, and a power unit for moving the distance measuring parts along the length direction of the guide seats, wherein the distance measuring parts are used to measure the distance from the guide seats to the mounting surface;

[0008] The support system has four fixing plates parallel to the horizontal plane, the four fixing plates are arranged at intervals and used to support the four corners of the screen frame, and the fixing plates are located above the guide seat and fixedly connected to the end of the guide seat.

[0009] In a possible implementation, the guide seat has a head end and a tail end, and the fixing plate is fixedly arranged on the top of the head end;

[0010] Each of the tail ends is fixedly connected to a push-pull system, and the push-pull system includes a push-pull member, and the push-pull member has a fixed end and a movable end. The fixed end of the push-pull member is fixed to the plane where the printing press screen frame flatness detection equipment is placed, and the movable end of the push-pull member is fixedly connected to the corresponding tail end, and the movable end of the push-pull member moves along the length direction of the corresponding guide seat.

[0011] In a possible implementation, the push-pull system also includes a sliding seat, a fixed seat and a positioning rod, the fixed end of the push-pull member is fixedly connected to the sliding seat, the bottom wall of the sliding seat is provided with a groove, the top surface of the fixed seat is provided with a convex strip that is slidably adapted to the groove, the convex strip is arranged in a direction perpendicular to the corresponding length direction of the guide seat, the end of the positioning rod extends from the outer wall of the sliding seat into the groove and is used to tighten the convex strip, and the positioning rod is screwed to the sliding seat.

[0012] In a possible implementation, an L-shaped positioning plate is fixedly disposed on the top surface of the fixing plate, the positioning plate has two mutually perpendicular positioning surfaces, and the two positioning surfaces are perpendicular to the horizontal plane, and fastening plates are disposed inside the two positioning surfaces;

[0013] The printing press screen frame flatness detection device further comprises an adjustment system disposed between the fastening plate and the positioning plate, wherein the adjustment system is used to adjust the distance between the fastening plate and the positioning surface.

[0014] In a possible implementation, the fixing plate has a notch at a corner facing the space enclosed by the four guide seats, and the notch is located in the area enclosed by the two positioning surfaces;

[0015] The support system also includes a support unit corresponding to the fixed plate one by one, the support unit including a base plate located below the fixed plate, a first telescopic member connected between the base plate and the guide seat, a second telescopic member fixed to the top surface of the base plate, and a support plate connected to the second telescopic member, the first telescopic member is used to drive the base plate to move in a horizontal direction, and the second telescopic member is used to drive the support plate to move in a vertical direction.

[0016] In a possible implementation, the adjustment system includes:

[0017] A first pitch-adjusting rod, which passes through the positioning plate and is slidably adapted thereto, the first pitch-adjusting rod being arranged horizontally, and one end of the first pitch-adjusting rod being fixedly connected to the fastening plate;

[0018] The pitch-adjusting sleeve is threadedly connected to the first pitch-adjusting rod and is rotatably connected to the positioning plate around its own central axis.

[0019] In a possible implementation, the adjustment system further includes:

[0020] A vertical plate, fixedly connected to the top of the fixed plate;

[0021] The linkage rod is rotatably connected to the vertical plate around its own central axis. The axial direction of the linkage rod is horizontal and is transmission-connected to the two distance-adjusting sleeves located on the same fixed plate.

[0022] In a possible implementation, the side wall of the positioning plate is provided with a through hole for the first distance adjusting rod to pass through, a limit block is fixedly provided on the inner wall of the through hole, and a limit groove is provided on the outer wall of the first distance adjusting rod for slidingly matching with the limit block, and the limit groove extends along the length direction of the first distance adjusting rod.

[0023] In a possible implementation, the adjustment system includes:

[0024] A second pitch-adjusting rod, which passes through the positioning plate and the two are screwed together, and the second pitch-adjusting rod is rotatably connected to the fastening plate around its own central axis;

[0025] The third telescopic member is fixed between the fastening plate and the positioning plate.

[0026] In a possible implementation, a side wall of the guide seat is provided with a running groove in a horizontal direction, and the distance measuring system further comprises a running seat corresponding to the distance measuring part one by one, and the running seat has a protrusion slidably adapted to the running groove;

[0027] The power unit comprises:

[0028] A one-way screw is connected to the travel groove by rotating around its own central axis, the axial direction of the one-way screw is parallel to the length direction of the travel groove, the one-way screw passes through the protrusion of the travel seat and the two are screwed;

[0029] The driving member is fixedly connected to the one-way screw and drives the one-way screw to rotate.

[0030] Compared with the prior art, the printing press screen frame flatness detection device provided by the present invention has the following advantages:

[0031] The power unit and the distance measuring part are started at the same time. When the driving unit drives the distance measuring part to move along the guide seat, the distance measuring part continuously measures the distance from itself to the installation surface. The fluctuation of the measurement result represents the flatness of the installation surface. The greater the fluctuation of the measurement result, the lower the flatness of the installation surface; the smaller the fluctuation of the measurement result, the higher the flatness of the installation surface. The distance measuring system can measure the four sides of the screen frame at the same time, reducing the time required for the flatness detection of the screen frame, thereby improving the efficiency of the flatness detection of the screen frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1It is a structural schematic diagram of a printing press screen frame flatness detection device according to an embodiment of the present invention;

[0033] Figure 2 This is a partial schematic diagram of a supporting unit and a driving unit according to an embodiment of the present invention;

[0034] Figure 3 This is a schematic structural diagram of a distance adjustment unit according to an embodiment of the present invention;

[0035] Figure 4 This is a cross-sectional view showing the positions of the limiting block and the limiting groove according to an embodiment of the present invention;

[0036] Figure 5 This is a schematic structural diagram of another distance adjustment unit according to an embodiment of the present invention;

[0037] Figure 6 This is a system guide diagram showing the working relationship between the driving member and the pressure sensor according to an embodiment of the present invention;

[0038] Figure 7 This is a system guide diagram that reflects the working relationship between the distance measuring unit, the analysis unit, and the alarm according to an embodiment of the present invention.

[0039] Description of reference numerals:

[0040] 10. Guide seat; 101. Head end; 102. Tail end; 103. Walking groove; 104. Post;

[0041] 20. Distance measurement unit;

[0042] 30. Power unit; 301. One-way screw; 302. Driving member;

[0043] 40, fixing plate; 401, positioning plate; 4011, positioning surface; 4012, through hole; 4013, limit block; 402, fastening plate; 403, notch;

[0044] 50, push-pull system; 501, push-pull member; 502, slide seat; 5021, groove; 503, fixed seat; 5031, convex strip; 504, positioning rod;

[0045] 60, support unit; 601, base plate; 602, first telescopic member; 603, second telescopic member; 604, support plate;

[0046] 70, pitch adjustment unit; 701, first pitch adjustment rod; 7011, limit groove; 702, pitch adjustment sleeve; 7021, driven bevel gear; 703, second pitch adjustment rod; 704, third telescopic member;

[0047] 80, driving unit; 801, vertical plate; 802, linkage rod; 8021, driving bevel gear;

[0048] 90. Walking seat. DETAILED DESCRIPTION

[0049] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0050] Please also read Figures 1 to 7 , the flatness detection device for the screen frame of a printing machine of the present invention is described. A flatness detection device for the screen frame of a printing machine is suitable for a screen frame with a mounting surface, comprising a distance measuring system and a support system, wherein the distance measuring system comprises four guide seats 10 connected end to end and forming a square, a distance measuring part 20 corresponding to the guide seats 10 one by one, and a power unit 30 for moving the distance measuring part 20 along the length direction of the guide seats 10, wherein the distance measuring part 20 is used to measure the distance from itself to the mounting surface; the support system comprises four fixing plates 40 parallel to the horizontal plane, wherein the four fixing plates 40 are arranged at intervals and used to receive the four corners of the screen frame, and the fixing plates 40 are located above the guide seats 10 and fixedly connected to the ends of the guide seats 10.

[0051] Compared with the prior art, the printing press screen frame flatness detection device provided in this embodiment has the following advantages:

[0052] The power unit 30 and the distance measuring unit 20 are started at the same time. When the power unit 30 drives the distance measuring unit 20 to move along the guide seat 10, the distance measuring unit 20 continuously measures the distance from itself to the installation surface. The fluctuation of the measurement result represents the flatness of the installation surface. The greater the fluctuation of the measurement result, the lower the flatness of the installation surface; the smaller the fluctuation of the measurement result, the higher the flatness of the installation surface. The distance measuring system can measure the four sides of the screen frame at the same time, reducing the time required for the flatness detection of the screen frame, thereby improving the efficiency of the flatness detection of the screen frame.

[0053] In some embodiments, see Figure 1 The guide seat 10 has a head end 101 and a tail end 102 , and the fixing plate 40 is fixedly disposed on the top of the head end 101 .

[0054] Each tail end 102 is fixedly connected to a push-pull system 50, which includes a push-pull member 501, which has a fixed end and a movable end. The fixed end of the push-pull member 501 is fixed to a plane where a printing press screen frame flatness detection device is placed, and the movable end of the push-pull member 501 is fixedly connected to the corresponding tail end 102, and the movable end of the push-pull member 501 moves along the length direction of the corresponding guide seat 10.

[0055] Specifically, the push-pull member 501 may be a telescopic oil cylinder, a hydraulic cylinder, or an electric cylinder.

[0056] The position of the guide seat 10 is moved by the push-pull member 501, thereby changing the length and width of the pattern formed by the four guide seats 10, thereby adapting to screen frames of different specifications, thereby improving the application range of the detection equipment.

[0057] In some embodiments, see Figure 1 The push-pull system 50 also includes a slide 502, a fixed seat 503 and a positioning rod 504. The fixed end of the push-pull member 501 is fixedly connected to the slide 502. The bottom wall of the slide 502 is provided with a groove 5021. The top surface of the fixed seat 503 is provided with a convex strip 5031 slidably adapted to the groove 5021. The convex strip 5031 is arranged in a direction perpendicular to the length direction of the corresponding guide seat 10. The end of the positioning rod 504 extends from the outer wall of the slide 502 into the groove 5021 and is used to press against the convex strip 5031. The positioning rod 504 is screwed to the slide 502.

[0058] During the movement of the guide seat 10, the push-pull member 501 fixed to the moving guide seat 10 drives the slide seat 502 to slide along the fixed seat 503, so that the protrusion 5031 slides in the groove 5021, which limits the moving direction of the push-pull member 501, thereby making the position of the guide seat 10 after movement parallel to the position of the guide seat 10 before movement.

[0059] After the guide seat 10 is moved, the staff twists the positioning rod 504 to make the positioning rod 504 press against the fixed seat 503, so that the sliding seat 502 and the fixed seat 503 are relatively still, thereby improving the stability of the connected guide seat 10 and the push-pull member 501 during the static process.

[0060] In some embodiments, see Figure 2 An L-shaped positioning plate 401 is fixed on the top surface of the fixing plate 40 . The positioning plate 401 has two mutually perpendicular positioning surfaces 4011 . The two positioning surfaces 4011 are perpendicular to the horizontal plane. A fastening plate 402 is disposed inside the two positioning surfaces 4011 .

[0061] The printing press screen frame flatness detection device further includes an adjustment system disposed between the fastening plate 402 and the positioning plate 401 , and the adjustment system is used to adjust the distance between the fastening plate 402 and the positioning surface 4011 .

[0062] The position of the fastening plate 402 is movable. By moving the fastening plate 402 to press against the side wall of the screen frame, the screen frame is limited so that the screen frame will not move during the entire detection process, thereby improving the accuracy of the detection result.

[0063] In some embodiments, see Figure 2 The fixing plate 40 has a notch 403 at a corner facing the space enclosed by the four guide seats 10 , and the notch 403 is located in the area enclosed by the two positioning surfaces 4011 .

[0064] The support system also includes a support unit 60 corresponding one-to-one to the fixed plate 40, the support unit 60 includes a base plate 601 located below the fixed plate 40, a first telescopic member 602 connected between the base plate 601 and the guide seat 10, a second telescopic member 603 fixed on the top surface of the base plate 601, and a support plate 604 connected to the second telescopic member 603; the first telescopic member 602 is used to drive the base plate 601 to move in the horizontal direction, and the second telescopic member 603 is used to drive the support plate 604 to move in the vertical direction.

[0065] The first telescopic member 602 is activated to extend the base plate 601 under the notch 403 , and the second telescopic member 603 is activated to extend the support plate 604 into the notch 403 and make the top surface of the support plate 604 flush with the top surface of the fixing plate 40 .

[0066] Specifically, the first telescopic member 602 and the second telescopic member 603 may be any one of a telescopic oil cylinder, a hydraulic cylinder and an electric cylinder.

[0067] Specifically, a column 104 is fixedly disposed between the head end 101 and the fixed plate 40 , and a fixed end of the first telescopic member 602 is fixedly connected to the column 104 .

[0068] Before placing the screen frame, the piston rod of the first telescopic member 602 extends to drive the base plate 601 to extend to the bottom of the notch 403, and then the piston rod of the second telescopic member 603 extends to drive the support plate 604 to move upward until the top surface of the support plate 604 is aligned with the top surface of the fixed plate 40; during the placement of the screen frame, the support plate 604 can support the screen frame, thereby facilitating the staff to fix the screen frame.

[0069] After the screen frame is fixed, the piston rod of the second telescopic member 603 is retracted to drive the support plate 604 to move downward until the top surface of the support plate 604 is lower than the bottom surface of the fixed plate 40, and then the piston rod of the first telescopic member 602 is retracted to drive the base to be retracted to the bottom of the fixed plate 40; thereby, during the detection process, the entire installation surface is not blocked, thereby improving the accuracy of the detection results.

[0070] In some embodiments, see Figure 3 The adjustment system includes a first pitch-adjusting rod 701 and a pitch-adjusting sleeve 702. The first pitch-adjusting rod 701 passes through the positioning plate 401 and the two are slidably adapted. The first pitch-adjusting rod 701 is horizontally arranged. One end of the first pitch-adjusting rod 701 is fixedly connected to the fastening plate 402. The pitch-adjusting sleeve 702 is screwed to the first pitch-adjusting rod 701 and is rotatably connected to the positioning plate 401 around its own central axis.

[0071] In some embodiments, see Figure 3The adjustment system also includes a vertical plate 801 and a linkage rod 802. The vertical plate 801 is fixed to the top of the fixed plate 40; the linkage rod 802 is connected to the vertical plate 801 by rotation around its own central axis. The axial direction of the linkage rod 802 is horizontal and is transmission-connected to the two distance adjustment sleeves 702 located on the same fixed plate 40.

[0072] Specifically, a driving bevel gear 8021 is fixedly provided at one end of the linkage rod 802 , and a driven bevel gear 7021 meshing with the driving bevel gear 8021 is fixedly provided on the outer periphery of the pitch adjusting sleeve 702 .

[0073] The staff rotates the linkage rod 802 to rotate the driving bevel gear 8021, which drives the driven bevel gear 7021 to rotate, and the driven bevel gear 7021 drives the distance adjusting sleeve 702 to rotate, so that the distance adjusting sleeve 702 drives the first distance adjusting rod 701 to move, thereby adjusting the distance between the fastening plate 402 and the positioning surface 4011.

[0074] The two fastening plates 402 can be moved by rotating a linkage rod 802, thereby shortening the time required for fixing the screen frame and improving the fixing efficiency of the screen frame.

[0075] In some embodiments, see Figure 4 A through hole 4012 is provided on the side wall of the positioning plate 401 for the first distance adjusting rod 701 to pass through, a limit block 4013 is fixedly provided on the inner wall of the through hole 4012, and a limit groove 7011 is provided on the outer wall of the first distance adjusting rod 701 to slide with the limit block 4013, and the limit groove 7011 extends along the length direction of the first distance adjusting rod 701.

[0076] When the first distance-adjusting rod 701 is moving, the limiting block 4013 slides in the limiting groove 7011 , so that the limiting block 4013 enables the first distance-adjusting rod 701 to move only along its own length direction, thereby achieving limiting and guiding of the first distance-adjusting rod 701 .

[0077] In some embodiments, see Figure 5 The adjustment system includes a second distance adjusting rod 703 and a third telescopic member 704. The second distance adjusting rod 703 passes through the positioning plate 401 and the two are screwed. The second distance adjusting rod 703 is rotatably connected to the fastening plate 402 around its own central axis. The third telescopic member 704 is fixed between the fastening plate 402 and the positioning plate 401.

[0078] Specifically, the third telescopic member 704 is a telescopic rod, the telescopic direction of the telescopic rod is parallel to the length direction of the second distance-adjusting rod 703, and the telescopic rod has a multi-stage telescopic structure.

[0079] When the staff rotates the second pitch-adjusting rod 703, the second pitch-adjusting rod 703 drives the fastening plate 402 to move toward the direction close to the screen frame, and the third telescopic member 704 allows the fastening plate 402 to move only along the length direction of the second pitch-adjusting rod 703, thereby making the fastening plate 402 press against the outer wall of the screen frame.

[0080] In some embodiments, see Figure 2 The side wall of the guide seat 10 is provided with a walking groove 103 in the horizontal direction. The distance measuring system further includes a walking seat 90 corresponding to the distance measuring part 20 one by one. The walking seat 90 has a protrusion that is slidably matched with the walking groove 103.

[0081] The power unit 30 includes a one-way screw 301 and a driving member 302. The one-way screw 301 rotates around its own central axis and is connected to the travel groove 103. The axial direction of the one-way screw 301 is parallel to the length direction of the travel groove 103. The one-way screw 301 passes through the protrusion of the travel seat 90 and the two are screwed together. The driving member 302 is fixedly connected to the one-way screw 301 and drives the one-way screw 301 to rotate.

[0082] Specifically, see Figure 2 The distance measuring unit 20 includes a plurality of infrared distance measuring devices, which are arranged in a line on the top surface of the traveling seat 90 , and the driving member 302 may be a driving motor.

[0083] After the screen frame is fixed, the driving member 302 starts to drive the one-way screw 301 to rotate, and the one-way screw 301 drives the traveling seat 90 to move along the guide column, so that the traveling seat 90 drives the distance measuring part 20 to move, and the distance measuring part 20 continuously measures the distance from itself to the installation surface during the movement.

[0084] There are multiple infrared rangefinders, which can measure multiple points at one time, increasing the richness of the data and improving the accuracy of the measurement results.

[0085] In some embodiments, see Figure 1 and Figure 6 A pressure sensor is installed on the inner side of the front end 101 of the guide seat 10 and is in communication connection with the driving member 302 .

[0086] The traveling seat 90 moves from the head end 101 to the tail end 102. When the traveling seat 90 touches the pressure sensor, the pressure sensor detects the pressure change and transmits a stop signal to the driving member 302, thereby stopping the driving member 302 from working and preventing the traveling seat 90 from hitting other guide seats 10.

[0087] In some embodiments, see Figure 2 and Figure 7 The distance measuring system also includes an analysis unit that is communicatively connected to the distance measuring unit 20.

[0088] Specifically, the analysis unit is a computer and an alarm connected to the computer for communication, and the alarm can emit red light and green light.

[0089] The distance measuring part 20 transmits all the measurement data to the analysis unit, and the analysis unit subtracts all the measurement data from the expected value (the distance value from the distance measuring part 20 to the top surface of the support plate 604) one by one and outputs the difference, that is, the difference = measurement data - expected value, and the difference can retain 3 decimal places. Then the analysis unit calculates the discreteness of the difference (the smaller the discreteness of the difference, the smaller the fluctuation of the measurement data, that is, the higher the flatness of the installation surface; the larger the discreteness of the difference, the larger the fluctuation of the measurement data, that is, the lower the flatness of the installation surface); the analysis unit determines whether the discreteness of the difference is within the preset range. If the discreteness is within the preset range, the alarm emits green light, and the flatness of the screen frame is qualified; if the discreteness exceeds the preset range, the alarm emits red light, and the flatness of the screen frame is unqualified.

[0090] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A printing press screen frame flatness detection device, suitable for a screen frame with a mounting surface, characterized in that: include: The distance measuring system comprises four guide seats connected end to end and forming a square, distance measuring parts corresponding to the guide seats one by one, and a power unit for moving the distance measuring parts along the length direction of the guide seats, wherein the distance measuring parts are used to measure the distance from the guide seats to the mounting surface; A support system, comprising four fixing plates parallel to a horizontal plane, the four fixing plates being arranged at intervals and used to receive the four corners of the screen frame, the fixing plates being located above the guide seat and fixedly connected to the end of the guide seat; The guide seat has a head end and a tail end, and the fixing plate is fixedly arranged on the top of the head end; Each of the tail ends is fixedly connected to a push-pull system, the push-pull system includes a push-pull member, the push-pull member has a fixed end and a movable end, the fixed end of the push-pull member is fixed to the plane where the flatness detection device of the screen frame of the printing machine is placed, the movable end of the push-pull member is fixedly connected to the corresponding tail end, and the movable end of the push-pull member moves along the length direction of the corresponding guide seat; The push-pull system also includes a slide seat, a fixed seat and a positioning rod, the fixed end of the push-pull member is fixedly connected to the slide seat, the bottom wall of the slide seat is provided with a groove, the top surface of the fixed seat is provided with a convex strip slidably adapted to the groove, the convex strip is arranged in a direction perpendicular to the length direction of the corresponding guide seat, the end of the positioning rod extends from the outer wall of the slide seat into the groove and is used to press against the convex strip, and the positioning rod is screwed to the slide seat; An L-shaped positioning plate is fixedly arranged on the top surface of the fixing plate, the positioning plate has two mutually perpendicular positioning surfaces, and the two positioning surfaces are perpendicular to the horizontal plane, and fastening plates are arranged inside the two positioning surfaces; The printing press screen frame flatness detection device further comprises an adjustment system disposed between the fastening plate and the positioning plate, the adjustment system being used to adjust the distance between the fastening plate and the positioning surface; The fixing plate has a notch at a corner facing the space enclosed by the four guide seats, and the notch is located in the area enclosed by the two positioning surfaces; The support system also includes a support unit corresponding to the fixed plate one by one, the support unit including a base plate located below the fixed plate, a first telescopic member connected between the base plate and the guide seat, a second telescopic member fixed to the top surface of the base plate, and a support plate connected to the second telescopic member, the first telescopic member is used to drive the base plate to move in a horizontal direction, and the second telescopic member is used to drive the support plate to move in a vertical direction.

2. The printing press screen frame flatness detection device according to claim 1, characterized in that: The regulating system comprises: A first pitch-adjusting rod, which passes through the positioning plate and is slidably adapted thereto, the first pitch-adjusting rod being arranged horizontally, and one end of the first pitch-adjusting rod being fixedly connected to the fastening plate; The pitch-adjusting sleeve is threadedly connected to the first pitch-adjusting rod and is rotatably connected to the positioning plate around its own central axis.

3. The printing press screen frame flatness detection device according to claim 2, characterized in that: The regulating system also includes: A vertical plate, fixedly connected to the top of the fixed plate; The linkage rod is rotatably connected to the vertical plate around its own central axis. The axial direction of the linkage rod is horizontal and is transmission-connected to the two distance-adjusting sleeves located on the same fixed plate.

4. The printing press screen frame flatness detection device according to claim 2, characterized in that: The side wall of the positioning plate is provided with a through hole for the first distance adjusting rod to pass through, the inner wall of the through hole is fixed with a limit block, the outer wall of the first distance adjusting rod is provided with a limit groove slidably adapted to the limit block, and the limit groove extends along the length direction of the first distance adjusting rod.

5. The printing press screen frame flatness detection device according to claim 1, characterized in that: The regulating system comprises: A second pitch-adjusting rod, which passes through the positioning plate and the two are screwed together, and the second pitch-adjusting rod is rotatably connected to the fastening plate around its own central axis; The third telescopic member is fixed between the fastening plate and the positioning plate.

6. The printing press screen frame flatness detection device according to claim 1, characterized in that: The side wall of the guide seat is provided with a running groove in the horizontal direction, and the distance measuring system further comprises a running seat corresponding to the distance measuring part one by one, and the running seat has a protrusion slidably adapted to the running groove; The power unit comprises: A one-way screw is connected to the travel groove by rotating around its own central axis, the axial direction of the one-way screw is parallel to the length direction of the travel groove, the one-way screw passes through the protrusion of the travel seat and the two are screwed; The driving member is fixedly connected to the one-way screw and drives the one-way screw to rotate.

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