Linear driving screen frame device

Abstract

The utility model relates to screen printing equipment, in particular to a linear driving screen frame device which comprises a rack and a screen frame component, the screen frame component is longitudinally and movably arranged on the rack, stators are longitudinally arranged on the rack, the screen frame component is connected with rotors matched with the stators, and the stators are arranged on the rack. The screen frame component is connected with a sliding block, a longitudinal sliding rail in sliding fit with the sliding block is arranged on the rack, the sliding block and the longitudinal sliding rail are matched to support the screen frame component and guide longitudinal movement of the screen frame component, a gap between a stator and a rotor can be kept, adsorption is avoided, the movement inertia of the screen frame component is reduced, and the service life of the screen frame component is prolonged. And meanwhile, the reciprocating motion resistance of the screen frame is reduced, the motion noise is reduced, and the service life of equipment is prolonged.

Description

Technical Field

[0001] This utility model relates to screen printing equipment, and in particular to a linearly driven screen frame device. Background Technology

[0002] In traditional flatbed rotary automatic screen printing machines, the screen frame mechanism carries the screen plate in a reciprocating motion, which works in conjunction with the rotation of the rollers to complete the screen printing process. The reciprocating motion of the screen frame is generally driven by two pairs of gears and racks on the left and right sides. During operation, it is a process of constantly changing speed. The meshing of the gears and racks and the sliding between the sliders and rails will generate a certain amount of vibration and noise, which will have some negative impact on the stable operation of the equipment and the high-efficiency and high-quality production. Utility Model Content

[0003] In view of the technical problems existing in the background art, the present invention aims to provide a linear drive wire frame device, wherein the slider and the longitudinal slide rail cooperate to support the wire frame component, and the permanent magnet and the coil component cooperate to drive the wire frame component to move longitudinally.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: the linear drive wire mesh frame device includes a frame and a wire mesh frame component. The wire mesh frame component is longitudinally movably mounted on the frame. The frame has stators arranged longitudinally. The wire mesh frame component is connected to a mover that cooperates with the stators. The wire mesh frame component is connected to a slider. The frame is provided with a longitudinal slide rail that slides with the slider.

[0005] In this design, the slider and the longitudinal slide rail work together to support the wire mesh frame components, guide their longitudinal movement, and maintain the gap between the stator and the mover to prevent adsorption.

[0006] Preferably, the stator is a permanent magnet, the mover is a coil, and the polarities of adjacent stators facing the mover are opposite.

[0007] In this design, the permanent magnet is heavier than the coil component, resulting in a lighter frame component with less inertia.

[0008] Preferably, the polarity surfaces of the stator and the mover are oriented laterally.

[0009] In this design, the stator and mover are vertically arranged, resulting in a compact structure and a short lateral length. The attraction or repulsion forces on both sides can cancel each other out, maintaining the accurate lateral position of the frame components.

[0010] Preferably, the mesh frame component has two sets of sliders on both sides along the vertical direction, and two sets of longitudinal slide rails on both sides of the frame along the vertical direction, with the permanent magnet disposed between the two sets of longitudinal slide rails.

[0011] In this design, four sets of sliders and longitudinal guide rails work together to limit the four corners of the wire mesh frame component, maintaining the accuracy of the vertical position of the wire mesh frame component.

[0012] Preferably, the mover is electrically connected to a driver, the driver being used to output high-frequency alternating current.

[0013] In this scheme, the driver drives the coil to change polarity and move at high speed.

[0014] Preferably, baffles are provided at both ends of the longitudinal slide rail.

[0015] In this design, the baffle prevents the high-speed mesh frame components from detaching from the longitudinal guide rail due to excessive inertia, thus avoiding a safety accident.

[0016] The beneficial effects of this utility model are that the slider and longitudinal guide rail work together to support the mesh frame component and guide its longitudinal movement, while also maintaining the gap between the stator and mover to prevent adhesion, reducing the moment of inertia of the mesh frame component, optimizing the motion characteristics of the mesh frame, reducing the resistance of the reciprocating motion of the mesh frame, lowering motion noise, and increasing the service life of the equipment. Therefore, this utility model has substantial features and progress compared with the prior art. Attached Figure Description

[0017] The following description, in conjunction with the accompanying drawings, details the embodiments and working principles of this utility model.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 for Figure 1 A magnified view of A in the middle.

[0020] In the diagram: 1. Frame; 2. Frame component; 3. Stator; 4. Mover; 5. Slider; 6. Longitudinal slide rail. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the implementation of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0022] In the description of this application, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0023] In the description of this application, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0024] See appendix Figure 1-2 This embodiment of the present invention provides a linearly driven wire mesh frame device, comprising a frame 1 and a wire mesh frame component 2. The wire mesh frame component 2 is longitudinally movably mounted on the frame 1. A stator 3 is arranged longitudinally on the frame 1. The wire mesh frame component 2 is connected to a mover 4 that cooperates with the stator 3. A slider 5 is connected to the wire mesh frame component 2. A longitudinal slide rail 6 is provided on the frame 1 that slidably cooperates with the slider 5. The stator 3 is a permanent magnet, and the mover 4 is a coil. The polarities of adjacent stators 3 facing the mover 4 are opposite, and the polar surfaces of the stator 3 and the mover 4 are oriented laterally. Two sets of sliders 5 are vertically mounted on both sides of the wire mesh frame component 2, and two sets of longitudinal slide rails 6 are vertically mounted on both sides of the frame 1. The permanent magnet is disposed between the two sets of longitudinal slide rails 6. The mover 4 is electrically connected to a driver, which is used to output high-frequency alternating current.

[0025] In this embodiment, the permanent magnets arranged longitudinally form a magnetic field. When the coil is energized, the magnetic field generates a Lorentz force on the current. The Lorentz force is directed longitudinally, thereby causing the frame component 2 to move longitudinally. This is a mature technology. The four sets of sliders 5 and the longitudinal slide rails 6 support, guide, and limit the frame component 2, maintaining printing accuracy and reducing the moment of inertia of the frame component 2. This helps to optimize the frame's motion characteristics, improve printing efficiency, reduce the resistance of the frame's reciprocating motion, reduce motion noise, and increase the service life of the equipment. The driver is a frequency converter, which modulates the input AC power into AC power of a specific frequency and amplitude to realize the periodic commutation and speed control of the frame component 2. This is also a mature technology. The mover 4 can be multiple or integrated, depending on the situation.

[0026] In other alternative implementations, the coil can be wound around the iron core to form an electromagnet. The stator 3 is also an electromagnet, divided into odd and even groups, which are energized alternately. The front and back are defined as the longitudinal direction, and the left and right are defined as the transverse direction. At this time, the polarity surface of the stator 3 is oriented transversely, and the polarity surface of the mover 4 is oriented longitudinally. Assuming that the side of the energized stator 3 facing the mover 4 is N pole, the S pole of the mover 4 will be attracted and the N pole will be repelled. The directions are consistent, forming unidirectional motion. The mover 4 will move between adjacent energized stators 3 and stop at the stator 3. The alternating energization makes the mover 4 always stay between adjacent energized stators 3.

[0027] The above description represents the preferred embodiment of this utility model. It should be noted that the scope of protection of this utility model is not limited thereto. For those skilled in the art, various improvements, modifications, or equivalent substitutions can be made without departing from the equivalent inventive concept disclosed in this utility model, and these can also be considered as part of the scope of protection of this utility model.

Claims

1. A linearly driven wire frame device, comprising a frame (1) and a wire frame component (2), wherein the wire frame component (2) is longitudinally movably disposed on the frame (1), characterized in that: The frame (1) has stators (3) arranged longitudinally, the mesh frame component (2) is connected to a mover (4) that cooperates with the stator (3), the mesh frame component (2) is connected to a slider (5), and the frame (1) is provided with a longitudinal slide rail (6) that cooperates with the slider (5).

2. The linearly driven wire frame device as described in claim 1, characterized in that: The stator (3) is a permanent magnet, and the mover (4) is a coil. The polarities of adjacent stators (3) facing the mover (4) are opposite.

3. The linearly driven wire frame device as described in claim 2, characterized in that: The polar surfaces of the stator (3) and the mover (4) are oriented laterally.

4. The linearly driven wire frame device as described in claim 3, characterized in that: The frame component (2) has two sets of sliders (5) arranged vertically on both sides, and two sets of longitudinal slide rails (6) arranged vertically on both sides of the frame (1). The permanent magnet is arranged between the two sets of longitudinal slide rails (6).

5. The linearly driven wire frame device as described in claim 2, characterized in that: The mover (4) is electrically connected to a driver, which is used to output high-frequency alternating current.

6. The linearly driven wire frame device as described in claim 1, characterized in that: The longitudinal slide rail (6) is provided with baffles at both ends.

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