Screen frame adjusting mechanism

Abstract

The utility model relates to a screen frame adjusting mechanism. The screen frame adjusting mechanism comprises a fixing unit which is provided with two fixing bases, two screen frame fixing plates and an adjusting unit mounting assembly. The two fixed seats are oppositely arranged in parallel; one ends of the two screen frame fixing plates are fixedly connected to the fixing seats, and the other ends of the two screen frame fixing plates extend towards the opposite fixing seats; the adjusting unit mounting assembly is fixedly connected to the two fixed seats; the screen frame is fixedly connected to the screen frame fixing plate; the adjusting unit is provided with a first linear module and a second linear module, and the output end of the first linear module and the output end of the second linear module can do linear telescopic motion; the first linear module is fixedly arranged on the adjusting unit mounting assembly and used for adjusting the position of the screen frame in the vertical direction. The second linear module is fixedly arranged on the fixing base and the adjusting unit mounting assembly and used for adjusting the position of the screen frame in the horizontal direction. According to the screen frame adjusting mechanism, the screen frame can be adjusted quickly and conveniently, the adjusting precision is high, the occupied space is small, and miniaturization of a screen printing machine is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of printing, in particular to a screen frame adjusting mechanism. Background Art

[0002] Screen printing technology is a traditional printing technology, which is widely used in all walks of life. With the rapid development of my country's industry, especially the electronics industry, the demand for printing has increased, and the requirements for printing precision have become higher and higher. Therefore, it is necessary to adjust the various components of the screen printing machine before printing, among which the adjustment of the screen frame position is one of the important steps before printing. At present, there are two main mainstream adjustment methods: one is to use manual adjustment, and set multiple bolts on the screen frame fixing frame. Before formal mass printing, workers need to gradually improve the accuracy through repeated printing and repeated adjustment. This method is time-consuming and wastes a lot of raw materials, which is not conducive to improving production efficiency; the other is to use multiple stepper motors to adjust, suspend the screen frame under multiple stepper motors, and adjust the vertical and horizontal directions by controlling multiple stepper motors. However, when using this method, the stepper motor occupies a large space, which is not conducive to the miniaturization of the equipment, and has high energy consumption and high cost of use. Utility Model Content

[0003] Based on this, the purpose of the utility model is to provide a screen frame adjustment mechanism. By setting an adjustment unit and controlling the first linear module and the second linear module of the adjustment unit, the vertical position and the horizontal position of the screen frame can be adjusted so that all parts of the screen frame are at the same height and at the target position. The whole adjustment process is fast and convenient, and the adjustment accuracy is high, thereby improving production efficiency and printing quality. At the same time, the adjustment unit occupies a small space, which is conducive to the miniaturization of the screen printing machine.

[0004] A screen frame adjustment mechanism, comprising:

[0005] The fixing unit is provided with two fixing seats, two screen frame fixing plates and an adjustment unit mounting assembly; the two fixing seats are arranged parallel to each other; one end of the two screen frame fixing plates is respectively fixed to one of the fixing seats, and the other end is extended toward the opposite fixing seat; the adjustment unit mounting assembly is fixed to the two fixing seats;

[0006] A screen frame, fixedly connected to the screen frame fixing plate and located between the two screen frame fixing plates;

[0007] The adjustment unit is provided with a first linear module and a second linear module, and the output ends of the first linear module and the second linear module can perform linear telescopic movement; the first linear module is fixed to the adjustment unit mounting assembly and is used to adjust the vertical position of the screen frame; the second linear module is fixed to the fixed seat and the adjustment unit mounting assembly and is used to adjust the horizontal position of the screen frame.

[0008] Further, the adjustment unit mounting assembly includes a first mounting plate, a second mounting plate, a third mounting plate and two mounting members;

[0009] The first mounting plate and the second mounting plate are respectively fixed on the two fixing seats and are arranged parallel and opposite to each other with one side away from the fixing seats;

[0010] Two ends of the third mounting plate are respectively fixed to the two fixing seats and are located at one end in the same direction as the first mounting plate and the second mounting plate;

[0011] The two mounting members are respectively fixed on the first mounting plate and one end of the second mounting plate away from the third mounting plate.

[0012] Further, the first linear module includes four first cylinders; two of the first cylinders are arranged on the first mounting plate and symmetrically distributed near the two ends of the first mounting plate, and the other two of the first cylinders are arranged on the second mounting plate and symmetrically distributed near the two ends of the second mounting plate;

[0013] A first through hole is provided on the first mounting plate and the second mounting plate, and the output end of the first cylinder passes through the first through hole and abuts against the upper surface of the screen frame.

[0014] Further, the second linear module includes two second cylinders and two first adjustment rods;

[0015] The two second cylinders are arranged on the third mounting plate and are symmetrically distributed near two ends of the third mounting plate;

[0016] The two first adjustment rods are respectively arranged on the two mounting members, the mounting members are provided with second through holes, the first adjustment rods pass through the second through holes and the telescopic ends thereof abut against the side surfaces of the screen frame.

[0017] Furthermore, the output end of the second cylinder close to the second mounting plate is arranged opposite to the end of the telescopic end of one of the first adjusting rods;

[0018] The output end of the second cylinder close to the first mounting plate is arranged opposite to the end of the telescopic end of the other first adjusting rod.

[0019] Furthermore, the second linear module also includes a third cylinder and a second adjustment rod;

[0020] The fixing base on which the second mounting plate is installed is provided with a first mounting hole, and the fixing base on which the first mounting plate is installed is provided with a second mounting hole;

[0021] The third cylinder is installed in the first mounting hole or the second mounting hole, and its output end abuts against the side of the screen frame; the second adjusting rod passes through the second mounting hole or the first mounting hole, and its telescopic end abuts against the side of the screen frame.

[0022] Furthermore, the end of the output end of the third cylinder is arranged opposite to the end of the telescopic end of the second adjusting rod.

[0023] Furthermore, a pressing frame member is provided at the end of the output end of the first cylinder; one end of the pressing frame member is fixedly connected to the output end of the first cylinder, and the other end abuts against the upper surface of the screen frame.

[0024] Furthermore, the output ends of the second cylinder and the third cylinder, and the telescopic ends of the first adjusting rod and the second adjusting rod are all provided with bearing seats; the bearing seats are provided with bearings, the arc surfaces of the bearings are opposite to the sides of the screen frame, and the arc surfaces of the two opposite bearings are arranged perpendicular to each other.

[0025] Furthermore, a surface of the frame pressing member facing the screen frame and an arc surface of the bearing are both provided with protective pads.

[0026] The beneficial effects of the utility model are:

[0027] (1) By setting an adjustment unit and controlling the first linear module and the second linear module of the adjustment unit, the vertical and horizontal positions of the screen frame can be adjusted so that all parts of the screen frame are at the same height and at the target position. The entire adjustment process is fast and convenient, and the adjustment accuracy is high, thereby improving production efficiency and printing quality. At the same time, the adjustment unit occupies a small space, which is conducive to the miniaturization of the screen printing machine.

[0028] (2) four first air cylinders are arranged in the first linear module and are evenly distributed on the upper surface of the screen frame. The height of each part of the screen frame in the vertical direction is adjusted by controlling the telescopic length of the output ends of the four first air cylinders, so that the upper surface of the screen frame is parallel to the set reference plane;

[0029] (3) By respectively arranging two second cylinders and first adjustment rods corresponding to the two second cylinders at both ends in the Y direction of the second linear module, the screen frame can be moved along the Y direction on the adjusted plane; at the same time, by respectively arranging a third cylinder and second adjustment rods corresponding to the second cylinders at both ends in the X direction of the second linear module, the screen frame can be moved along the X direction on the adjusted plane, and finally the screen frame is moved to the target position;

[0030] (4) By arranging the output end of the second cylinder on the same side of the fixing seat to face the end of the telescopic end of the first adjusting rod, and arranging the end of the output end of the third cylinder to face the end of the telescopic end of the second adjusting rod, when the screen frame is fixed after the position adjustment is completed, displacement of the screen frame due to force applied by each end can be avoided;

[0031] (5) By arranging a frame pressing member at the end of the output end of the first cylinder, the force bearing area between the output end of the first cylinder and the screen frame can be increased, and the damage caused by the output end of the first cylinder to the screen frame can be reduced;

[0032] (6) By arranging bearings at the ends of the output ends of the second and third cylinders and the ends of the telescopic ends of the adjusting rods, and making the arc surface of the bearings abut against the side surface of the screen frame, it is possible to reduce the damage to the screen frame caused by the local force applied to the ends of the output ends of the second and third cylinders and the ends of the telescopic ends of the adjusting rods when the frame edge of the screen frame deviates from the set X direction and Y direction in the initial state;

[0033] (7) Protective pads are provided on the side of the frame pressing member facing the screen frame and on the arc surface of the bearing, so that the frame pressing member and the bearing can provide protection when they contact the screen frame, thereby preventing the frame pressing member and the bearing from damaging the screen frame.

[0034] In order to better understand and implement the present invention, the present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 A structural diagram of the screen frame adjustment mechanism provided in this embodiment from a first viewing angle;

[0036] Figure 2 A structural diagram of the screen frame adjustment mechanism provided in this embodiment from a second viewing angle;

[0037] Figure 3 This is an exploded view of the screen frame adjustment mechanism provided in this embodiment.

[0038] In the figure: 10-fixed unit; 11-fixed seat; 111-first fixed seat; 112-second fixed seat; 12-screen frame fixing plate; 13-adjustment unit mounting assembly; 131-first mounting plate, 132-second mounting plate, 133-third mounting plate; 134-mounting member; 20-screen frame; 30-adjustment unit; 31-first linear module; 311-first cylinder; 312-pressing frame member; 32-second linear module; 321-second cylinder; 322-first adjusting rod; 323-third cylinder; 324-second adjusting rod; 325-bearing seat; 326-bearing. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] In the description of the present invention, it should be noted that the terms "vertical direction", "upper", "lower", "horizontal" and the like indicate directions or positional relationships based on the directions 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 direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, "first", "second", "third", and "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0041] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, or a connection through an intermediate medium, or 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.

[0042] Please also see Figures 1 to 3 The embodiment of the present application provides a screen frame adjustment mechanism, including a fixing unit 10, a screen frame 20 and an adjustment unit 30. The fixing unit 10 is used to fix the screen frame 20 and the adjustment unit 30, and the adjustment unit 30 is used to fine-tune the position of the screen frame 20.

[0043] Specifically, the fixing unit 10 includes a fixing seat 11, two screen frame fixing plates 12 and an adjustment unit installation assembly 13. The fixing seat 11 is provided with a first fixing seat 111 and a second fixing seat 112, the first fixing seat 111 and the second fixing seat 112 are arranged parallel to each other, the two screen frame fixing plates 12 are respectively fixed to the first fixing seat 111 and the second fixing seat 112, wherein one end of one screen frame fixing plate 12 is fixed to the first fixing seat 111, and the other end is extended toward the second fixing seat 112, one end of the other screen frame fixing plate 12 is fixed to the second fixing seat 112, and the other end is extended toward the first fixing seat 111, the two sides of the screen frame 20 are respectively fixed to the two screen frame fixing plates 12, and are located between the two screen frame fixing plates, and the adjustment unit installation assembly 13 is used to install the adjustment unit 30.

[0044] Furthermore, one end of two opposite sides of the screen frame 20 is respectively fixedly connected to two screen frame fixing plates 12. In order to make the height of the screen frame 20 at various locations as much as possible at the same height before adjustment, preferably, the end surfaces of the two screen frame fixing plates 12 at one end away from the fixing seat 11 are arranged parallel to each other, so that the upper surfaces of the two screen frame fixing plates 12 are in the same plane, thereby, when adjusting the height of the screen frame 20 in the vertical direction, only fine adjustment is required to make the screen frame 20 at various locations at the same height.

[0045] In this embodiment, a working platform for placing the printed matter is provided below the screen frame 20, and the plane where the upper surface of the working platform is located is used as the reference plane of the screen frame 20; the working platform is a rectangle, and the length direction of the rectangular working platform is defined as the X-axis direction, and the width direction is defined as the Y-axis direction, and the length direction of the fixing seat 11 is pre-set along the Y-axis direction, and the direction perpendicular to the length direction of the fixing seat 11 is the X-direction. It can be understood that, in general, the mesh surface in the middle of the screen frame 20 and the upper surface of the frame of the screen frame 20 are in the same plane, so the upper surface of the screen frame 20 needs to be adjusted to be parallel to the reference plane, and when the upper surface of the screen frame 20 is parallel to the reference plane, it is adjusted horizontally on the plane, and finally the frame of the length direction of the screen frame 20 is parallel to the X-direction, and the frame of the width direction is parallel to the Y-direction, that is, the screen frame 20 completes the adjustment of the target position.

[0046] Furthermore, the adjustment unit mounting assembly 13 includes a first mounting plate 131, a second mounting plate 132, a third mounting plate 133 and two mounting members 134. The first mounting plate 131 and the second mounting plate 132 are respectively fixed on the two fixing seats 11, specifically, one end of the first mounting plate 131 is fixed to the first fixing seat 111, and the other end is extended toward the second fixing seat 112, and is located above the screen frame fixing plate 12; one end of the second mounting plate 132 is fixed to the second fixing seat 112, and the other end is extended toward the first fixing seat 111, and is located above the screen frame fixing plate 12, therefore, one end of the screen frame 20 is located between the first mounting plate 131 and the screen frame fixing plate 12, and the other end is located between the second mounting plate 132 and the screen frame fixing plate 12. The two ends of the third mounting plate 133 are respectively fixed to the first fixing seat 111 and the second fixing seat 112, and are located at one end in the same direction as the first mounting plate 131 and the second mounting plate 132, and the length direction of the third mounting plate 133 is perpendicular to the length direction of the first mounting plate 131. The two mounting members 134 are respectively fixed to one end of the first mounting plate 131 and the second mounting plate 132 away from the third mounting plate 133. It can be seen that the length direction of the first mounting plate 131 and the second mounting plate 132 is the Y direction, and the length direction of the third mounting plate 133 is the X direction.

[0047] The adjustment unit 30 is provided with a first linear module 31 and a second linear module 32, the output ends of the first linear module 31 and the second linear module 32 can perform linear telescopic motion, the first linear module 31 is fixed to the adjustment unit mounting assembly 13, and is used to adjust the vertical position of the screen frame 20, and the second linear module 32 is fixed to the fixing seat 11 and the adjustment unit mounting assembly 13, and is used to adjust the horizontal position of the screen frame 20. In this way, all parts of the screen frame 20 can be at the same height and target position.

[0048] Specifically, the first linear module 31 includes four first cylinders 311, of which two first cylinders 311 are arranged on the first mounting plate 131 and symmetrically distributed near the two ends of the first mounting plate 131, and the other two first cylinders 311 are arranged on the second mounting plate 132 and symmetrically distributed near the two ends of the second mounting plate 132. Preferably, the first mounting plate 131 and the second mounting plate 132 are arranged on the same plane away from the screen frame fixing plate 12, so that the four first cylinders 311 are arranged at the same height, which is convenient for better controlling the telescopic length of the four first cylinders 311; the connecting line of the two first cylinders 311 at one end of the first mounting plate 131 and the second mounting plate 132 in the same direction is parallel to the X direction, so that the force of the screen frame 20 is distributed as evenly as possible on its upper surface. A telescopic rod is provided at the output end of the first cylinder 311, and the end of the telescopic rod is arranged opposite to the first mounting plate 131 and the second mounting plate 132. A first through hole is provided at a position corresponding to the telescopic rod on the first mounting plate 131 and the second mounting plate 132, and the telescopic rod of the first cylinder 311 passes through the first through hole and abuts against the upper surface of the screen frame 20. Thus, by controlling the expansion and contraction of the output ends of the four first cylinders 311, a downward pressure is applied to the upper surface of the screen frame 20. When the upper surface of the screen frame 20 is not parallel to the reference plane, one or more of the first cylinders 311 can be adjusted to apply a downward pressure to one or more positions of the screen frame 20, and finally the upper surface of the screen frame 20 is parallel to the reference plane, completing the vertical adjustment. Compared with the stepping motor, the vertical position of the screen frame 20 is adjusted by using the first cylinder 311, which requires less energy consumption and can more accurately control subtle position changes, making the position adjustment more precise.

[0049] Furthermore, in order to increase the force bearing area between the output end of the first cylinder 311 and the screen frame 20 and reduce the damage to the screen frame 20 caused by the output end of the first cylinder 311, a pressing frame member 312 is provided at the end of the output end of the first cylinder 311, one end of the pressing frame member 312 is fixedly connected to the output end of the first cylinder 311, and the other end abuts against the upper surface of the screen frame 20. At the same time, in order to further protect the upper surface of the screen frame 20, a protective pad (not shown) is provided on the side of the pressing frame member 312 facing the screen frame 20, and the protective pad is made of a soft material, preferably a rubber material.

[0050] The second linear module 32 includes two second cylinders 321 and two first adjustment rods 322. The two second cylinders 321 are arranged on the third mounting plate 133 and are symmetrically distributed near the two ends of the third mounting plate 133. The two first adjustment rods 322 are respectively arranged on two mounting members 134, and the mounting members 134 are provided with second through holes. The first adjustment rods 322 pass through the second through holes, and the ends of the telescopic ends thereof abut against the side of the screen frame 20. In this embodiment, the first adjustment rod 322 adopts a micrometer, and the micrometer can be accurate to 0.001mm. The length of the micrometer can be accurately controlled by rotating the length adjustment knob on the micrometer. Therefore, when the upper surface of the screen frame 20 is parallel to the reference plane, by controlling the two second cylinders 321 and the two first adjustment rods 322, the screen frame 20 can be moved along the Y direction, and finally the frame of the screen frame 20 in the width direction can be made parallel to the Y direction. Preferably, the output end of the second cylinder 321 near the second mounting plate 132 is arranged opposite to the end of the telescopic end of one of the first adjusting rods 322; and the output end of the second cylinder 321 near the first mounting plate 131 is arranged opposite to the end of the telescopic end of the other first adjusting rod 322, so that after the position adjustment of the screen frame 20 is completed, when the output end of the second cylinder 321 and the telescopic end of the first adjusting rod 322 abut against the side of the screen frame 20, the line connecting the force applied by the output end of the second cylinder 321 relative to the end of the telescopic end of the first adjusting rod 322 is parallel to the Y direction, so as to avoid the screen frame 20 rotating on a plane parallel to the reference plane and causing displacement when one of the forces is offset from the Y direction.

[0051] Furthermore, the second linear module 32 also includes a third cylinder 323 and a second adjusting rod 324. A first mounting hole is provided on the fixing seat 11 on which the second mounting plate 132 is installed, and a second mounting hole is provided on the fixing seat 11 on which the first mounting plate 131 is installed. The third cylinder 323 is installed in the first mounting hole or the second mounting hole, and its output end can abut against the side of the screen frame 20; the second adjusting rod 324 passes through the second mounting hole or the first mounting hole, and the end of its telescopic end abuts against the side of the screen frame 20. In this embodiment, the first mounting hole is provided on the first fixing seat 112, the third cylinder 323 is provided on the first mounting hole, the second mounting hole is provided on the second fixing seat 111, and the second adjusting rod 324 is provided on the second mounting hole. Similarly, the second adjusting rod 324 adopts a micrometer. Thus, when the upper surface of the screen frame 20 is parallel to the reference plane, the screen frame 20 is moved along the X direction by controlling the linear displacement of the third cylinder 323 and the second adjusting rod 324 in the X direction, and finally the frame of the screen frame 20 in the length direction is parallel to the X direction. Preferably, the end of the output end of the third cylinder 323 is arranged opposite to the end of the telescopic end of the second adjusting rod 324, so that after the position adjustment of the screen frame 20 is completed, when the output end of the third cylinder 323 and the telescopic end of the second adjusting rod 324 are respectively in contact with the side of the screen frame 20, the connecting line of the force applied by the output end of the third cylinder 323 and the end of the telescopic end of the second adjusting rod 324 is parallel to the X direction, so as to avoid the screen frame 20 rotating on a plane parallel to the reference plane and causing displacement when one of the forces is offset in the X direction.

[0052] Furthermore, the output ends of the second cylinder 321 and the third cylinder 323, the telescopic ends of the first adjusting rod 322 and the second adjusting rod 324 are all provided with a bearing seat 325, and one end of the bearing seat 325 is fixedly connected to the output ends of the second cylinder 321 and the third cylinder 323, the telescopic ends of the first adjusting rod 322 and the second adjusting rod 324. When the surface abutting against the side of the screen frame 20 is a plane, in the initial state before adjustment, the frame edge of the screen frame 20 often deviates from the set X direction and Y direction, so that the side of the screen frame 20 forms an angle with the abutting surface, and even the right angle of the edge of the abutting surface directly abuts against the side of the screen frame 20, which will cause the side of the screen frame 20 to have a small force area and a large pressure, which is easy to cause damage to the screen frame 20. Therefore, a bearing 326 is provided on the bearing seat 325, and the arc surface of the bearing 326 faces the side of the screen frame 20 and abuts against the side of the screen frame 20. The arc surface is in contact with the side surface of the screen frame 20 to avoid the edge abutting the screen frame at a right angle, thereby reducing the damage to the screen frame 20 caused by the ends of the output ends of the second cylinder 321 and the third cylinder 323 and the ends of the telescopic ends of each adjusting rod when the frame edge of the screen frame 20 deviates from the set X direction and / or Y direction in the initial state. In addition, after the position adjustment of the screen frame 20 is completed, the output ends of the second cylinder 321 and the third cylinder 323, the telescopic ends of the first adjustment rod 322 and the second adjustment rod 324 are respectively abutted against the side of the screen frame 20 for limiting. However, the connecting line of the force applied to the side of the screen frame 20 by the output end of the cylinder and the end of the telescopic end of the corresponding adjustment rod will have a certain angle with the X direction or the Y direction. In order to avoid the sliding of the bearing 326 and the side of the screen frame 20 due to the angle as much as possible and cause new displacement, the arc surfaces of the two opposite bearings 326 are arranged perpendicular to each other, that is, the arc surfaces of the bearings 326 on the second cylinder 321 and the corresponding first adjustment rod 322 are arranged perpendicular to each other, and the arc surfaces of the bearings 326 on the third cylinder 323 and the second adjustment rod 324 are arranged perpendicular to each other. Further, the arc surface of the bearing 326 is provided with a protective pad.

[0053] In other embodiments, the first cylinder 311, the second cylinder 321 and the third cylinder 323 may also be replaced by hydraulic cylinders, oil pressure cylinders, screw rods and other devices capable of linear telescopic motion.

[0054] Compared with the prior art, the beneficial effects of the technical solution of this application are:

[0055] (1) By setting an adjustment unit and controlling the first linear module and the second linear module of the adjustment unit, the vertical and horizontal positions of the screen frame can be adjusted so that all parts of the screen frame are at the same height and at the target position. The entire adjustment process is fast and convenient, and the adjustment accuracy is high, thereby improving production efficiency and printing quality. At the same time, the adjustment unit occupies a small space, which is conducive to the miniaturization of the screen printing machine.

[0056] (2) four first air cylinders are evenly distributed on the upper surface of the screen frame in the first linear module, and the height of each part of the screen frame in the vertical direction is adjusted by controlling the telescopic length of the output ends of the four first air cylinders to achieve that the upper surface of the screen frame is parallel to the set reference plane;

[0057] (3) By respectively arranging two second cylinders and first adjustment rods corresponding to the two second cylinders at both ends in the Y direction of the second linear module, the screen frame can be moved along the Y direction on the adjusted plane; at the same time, by respectively arranging a third cylinder and second adjustment rods corresponding to the second cylinders at both ends in the X direction of the second linear module, the screen frame can be moved along the X direction on the adjusted plane, and finally the screen frame is moved to the target position;

[0058] (4) By arranging the output end of the second cylinder on the same side of the fixing seat to face the end of the telescopic end of the first adjusting rod, and arranging the end of the output end of the third cylinder to face the end of the telescopic end of the second adjusting rod, when the screen frame is fixed after the position adjustment is completed, displacement of the screen frame due to force applied by each end can be avoided;

[0059] (5) By arranging a frame pressing member at the end of the output end of the first cylinder, the force bearing area between the output end of the first cylinder and the screen frame can be increased, and the damage caused by the output end of the first cylinder to the screen frame can be reduced;

[0060] (6) By arranging bearings at the ends of the output ends of the second and third cylinders and the ends of the telescopic ends of the adjusting rods, and making the arc surface of the bearings abut against the side surface of the screen frame, it is possible to reduce the damage to the screen frame caused by the local force applied to the ends of the output ends of the second and third cylinders and the ends of the telescopic ends of the adjusting rods when the frame edge of the screen frame deviates from the set X direction and Y direction in the initial state;

[0061] (7) Protective pads are provided on the side of the frame pressing member facing the screen frame and on the arc surface of the bearing, so that the frame pressing member and the bearing can provide protection when they contact the screen frame, thereby preventing the frame pressing member and the bearing from damaging the screen frame.

[0062] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and the utility model is also intended to include these modifications and modifications.

Claims

1. A screen frame adjustment mechanism, characterized in that: include: A fixing unit, provided with two fixing seats, two screen frame fixing plates and an adjusting unit mounting assembly; The two fixing seats are arranged parallel to each other; one end of the two screen frame fixing plates is respectively fixed to one of the fixing seats, and the other end is extended toward the opposite fixing seat; the adjustment unit mounting assembly is fixed to the two fixing seats; A screen frame, fixedly connected to the screen frame fixing plate and located between the two screen frame fixing plates; The adjusting unit is provided with a first linear module and a second linear module, and the output ends of the first linear module and the second linear module can perform linear telescopic motion; The first linear module is fixed to the adjustment unit installation assembly and is used to adjust the vertical position of the screen frame; the second linear module is fixed to the fixing seat and the adjustment unit installation assembly and is used to adjust the horizontal position of the screen frame.

2. The screen frame adjustment mechanism according to claim 1, characterized in that: The adjustment unit mounting assembly includes a first mounting plate, a second mounting plate, a third mounting plate and two mounting members; The first mounting plate and the second mounting plate are respectively fixed on the two fixing seats and are arranged parallel and opposite to each other with one side away from the fixing seats; Two ends of the third mounting plate are respectively fixed to the two fixing seats and are located at one end in the same direction as the first mounting plate and the second mounting plate; The two mounting members are respectively fixed on the first mounting plate and one end of the second mounting plate away from the third mounting plate.

3. The screen frame adjustment mechanism according to claim 2, characterized in that: The first linear module includes four first cylinders; two of the first cylinders are disposed on the first mounting plate and symmetrically distributed near the two ends of the first mounting plate, and the other two of the first cylinders are disposed on the second mounting plate and symmetrically distributed near the two ends of the second mounting plate; A first through hole is provided on the first mounting plate and the second mounting plate, and the output end of the first cylinder passes through the first through hole and abuts against the upper surface of the screen frame.

4. The screen frame adjustment mechanism according to claim 3, characterized in that: The second linear module includes two second cylinders and two first adjustment rods; The two second cylinders are arranged on the third mounting plate and are symmetrically distributed near two ends of the third mounting plate; The two first adjustment rods are respectively arranged on the two mounting members, the mounting members are provided with second through holes, the first adjustment rods pass through the second through holes and the telescopic ends thereof abut against the side surfaces of the screen frame.

5. The screen frame adjustment mechanism according to claim 4, characterized in that: The output end of the second cylinder close to the second mounting plate is arranged opposite to the end of the telescopic end of one of the first adjusting rods; The output end of the second cylinder close to the first mounting plate is arranged opposite to the end of the telescopic end of the other first adjusting rod.

6. The screen frame adjustment mechanism according to claim 5, characterized in that: The second linear module also includes a third cylinder and a second adjusting rod; The fixing base on which the second mounting plate is installed is provided with a first mounting hole, and the fixing base on which the first mounting plate is installed is provided with a second mounting hole; The third cylinder is installed in the first mounting hole or the second mounting hole, and its output end abuts against the side of the screen frame; the second adjusting rod passes through the second mounting hole or the first mounting hole, and its telescopic end abuts against the side of the screen frame.

7. The screen frame adjustment mechanism according to claim 6, characterized in that: The end of the output end of the third cylinder is arranged opposite to the end of the telescopic end of the second adjusting rod.

8. The screen frame adjustment mechanism according to claim 7, characterized in that: A pressing frame member is provided at the end of the output end of the first cylinder; one end of the pressing frame member is fixedly connected to the output end of the first cylinder, and the other end abuts against the upper surface of the screen frame.

9. The screen frame adjustment mechanism according to claim 8, characterized in that: The output ends of the second cylinder and the third cylinder, and the telescopic ends of the first adjusting rod and the second adjusting rod are all provided with bearing seats; the bearing seats are provided with bearings, the arc surfaces of the bearings are opposite to the side surfaces of the screen frame, and the arc surfaces of the two opposite bearings are arranged perpendicular to each other.

10. The screen frame adjustment mechanism according to claim 9, characterized in that: A side of the frame pressing member facing the screen frame and an arc surface of the bearing are both provided with protection pads.

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