A new type of fully automatic large-format screen printing machine

Abstract

This utility model provides a novel fully automatic large-format screen printing machine, relating to the field of screen printing equipment technology. It includes a conveying assembly and a horizontal moving and lifting assembly installed together. The conveying assembly includes a lifting member, the upper end of which is connected to a conveying module. The lifting member drives the conveying module to rise or fall. The horizontal moving and lifting assembly includes a lifting structure, the upper end of which is connected to a platform frame, on which rollers are mounted. The lifting structure drives the platform frame to rise or fall. The conveying direction of the conveying module and the rotation direction of the rollers are perpendicular to each other. The advantage of this utility model is that by setting up the conveying assembly and the horizontal moving and lifting assembly, the printing plate can be conveyed into the equipment from different directions for screen printing, and the two can be lifted and conveyed separately, preventing the printing plate from being scratched or jammed during conveying.

Description

Technical Field

[0001] This utility model relates to the field of screen printing equipment technology, and in particular to a new type of fully automatic large-panel screen printing machine. Background Technology

[0002] Large-format screen printing machines can be used to print large rigid and flexible circuit boards, perform screen printing on ceramic sheets, or print bright patterns, text, and logos on the casings of large electrical products. The working principle of a large-format printing machine is mainly based on the transmission mechanism transmitting power, causing the squeegee to squeeze ink and the screen printing plate during movement, forming an impression line between the screen printing plate and the substrate. Due to the tension of the screen, a force is generated on the squeegee, and the rebound force ensures that the screen printing plate, except for the impression line, does not come into contact with the substrate. Under the squeezing force of the squeegee, the ink leaks through the mesh from the moving impression line onto the substrate.

[0003] Because large-format screen printing machines print on large-sized boards, a conveyor system capable of supporting the large surface area is required to ensure the boards are flat. However, these conveyor systems often can only transport materials in one direction, which causes many inconveniences when moving the boards in actual production.

[0004] For example, during the production process, if operations such as adjusting the position of the printing plate, flipping it for printing, or changing the conveying direction are required, a single-direction conveying device cannot meet the needs. Additional manual intervention or complex mechanical adjustments are necessary, which not only increases production time and labor costs but may also lead to damage to the printing plate or a decrease in printing quality due to improper operation. Furthermore, this conveying method limits the flexibility of the production process and is detrimental to the optimization and efficient operation of the production line. Utility Model Content

[0005] This utility model overcomes the shortcomings of the prior art and provides a new type of fully automatic large-format screen printing machine. It is equipped with a conveying component and a horizontal moving lifting component, which allows the board material to be conveyed into the equipment from different directions for screen printing. The two components can be lifted and conveyed separately, so that the board material will not be scratched or jammed during the conveying process. The two screen frame clamping components of the screen frame clamping and scraping component can be adjusted to accommodate screen frames of different sizes. The clamping plate lifting cylinder can adjust the lifting of the screen frame and set the scraping rhythm and time. The U-shaped design of the clamping plate can support the weight of the screen frame. During installation, it is fixed by clamping cylinder and clamping adjusting bolts, which makes the installation firm and easy to disassemble.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] A new type of fully automatic large-format screen printing machine includes a conveying assembly and a lateral movement lifting assembly that are fitted together.

[0008] The conveying assembly includes a lifting component, the upper end of which is connected to the conveying module; the lifting component is used to drive the conveying module to rise or fall.

[0009] The horizontal movement lifting assembly includes a lifting structure, the upper end of which is connected to the platform frame, and the platform frame is equipped with rollers; the lifting structure is used to drive the platform frame to rise or fall.

[0010] The conveying direction of the conveying module is perpendicular to the rotation direction of the idler roller;

[0011] A wire mesh frame clamping and scraping component is provided directly above the conveying component, and the wire mesh frame clamping and scraping component is connected to the printing frame lifting mechanism.

[0012] Furthermore, the lateral movement lifting assembly is also equipped with a power assembly and a linkage assembly;

[0013] The linkage component includes a rotating rod, one end of which is connected to a third swing rod. The power component is used to drive the rotating rod to rotate, and the rotation of the rotating rod causes the third swing rod to swing.

[0014] The lifting structure includes a lifting base, a lifting rod slidably inserted into the lifting base, and the upper end of the lifting rod is connected to the platform frame.

[0015] Furthermore, the end of the third swing arm furthest from the rotating rod is positioned below the lifting rod;

[0016] When the rotating rod rotates in the first direction, the end of the third swing rod that contacts the lifting rod will lift the lifting rod, thereby raising the platform frame.

[0017] When the rotating rod rotates in the second direction, the end of the third swing rod that contacts the lifting rod descends, and the lifting rod descends due to gravity, thereby causing the platform frame to descend;

[0018] The first steering is opposite to the second steering;

[0019] The end of the third swing arm away from the rotating rod is connected to a apex bearing, and the outer edge of the apex bearing contacts the bottom end of the lifting rod.

[0020] Furthermore, the power assembly includes a central connecting rod, with a first swing arm and a second swing arm rotatably connected to both ends of the central connecting rod, respectively;

[0021] The ends of the first and second swing arms furthest from the central connecting rod are each connected to a rotating rod.

[0022] The end of the first swing arm that connects to the central linkage is connected to the power source;

[0023] When the power source pushes the upper end of the first pendulum rod to move, the middle connecting rod is pushed and moves along its length. The rotating rod connected to the lower end of the first pendulum rod rotates accordingly. The upper end of the second pendulum rod swings along with the movement of the middle connecting rod. At this time, the rotating rod connected to the lower end of the second pendulum rod also rotates accordingly.

[0024] The upper ends of the two lifting rods are connected to the lifting crossbeam, which is connected to the platform bracket. The rollers are set perpendicular to the lifting crossbeam.

[0025] Furthermore, the wire mesh frame clamping and scraping assembly includes a clamping base, and a movable module component is disposed above the clamping base. The movable module component is used to provide kinetic energy and a moving track for the movement of the scraping component.

[0026] The lower side of the clamping base is connected to two symmetrically arranged wire mesh clamping components. The two wire mesh clamping components are respectively arranged on both sides of the coating component. The two wire mesh clamping components are used to clamp the two ends of the wire mesh, so that the wire mesh can be fixed. The distance between the two wire mesh clamping components can be adjusted according to the size of the wire mesh during production.

[0027] Furthermore, the wire mesh frame clamping component includes a clamping movable seat, the clamping movable seat is connected to a clamping plate lifting cylinder, and the clamping plate lifting cylinder is connected to a clamping plate mounting seat;

[0028] The clamp mounting base has clamp adjustment frames inserted at both ends. Each clamp adjustment frame includes an adjustment frame body and a nut block inside the adjustment frame body. The nut block is fixedly connected to the end of the clamp mounting base. The nut block is threadedly connected to a fine-tuning bolt, which is rotatably connected to the adjustment frame body.

[0029] The adjusting frame is connected to the clamping plate. When the fine-tuning bolt is rotated, the position of the clamping plate mounting seat in the adjusting frame can be adjusted, thereby adjusting the position between the clamping plate mounting seat and the clamping plate.

[0030] The clamping plate is U-shaped and rotated 90 degrees. One side of the U-shape is connected to the clamping cylinder and the clamping adjustment bolt.

[0031] Furthermore, the clamping moving seat is connected to the mesh frame clamping sliding base, the mesh frame clamping sliding base is provided with a slider, the mesh frame clamping sliding base is rotatably connected to a sliding adjustment rod, the sliding adjustment rod is provided with a sliding adjustment gear, and one end of the sliding adjustment rod is provided with a sliding adjustment handle;

[0032] The clamping base is provided with a slide rail and a rack, the slider is connected to the slide rail, and the sliding adjustment gear is meshed with the rack.

[0033] Furthermore, the printing frame lifting mechanism includes a lifting power component, which is connected to an eccentric steering component, which is connected to a transmission component, and the transmission component is connected to the lifting component.

[0034] The lifting power assembly is used to drive the eccentric steering component to rotate;

[0035] The transmission component includes a transmission belt, and the lifting component includes a lifting optical shaft that is slidably inserted into the lifting base. The two ends of the transmission belt are respectively connected to the bottom ends of the two lifting optical shafts.

[0036] The eccentric steering component is located in the middle of the transmission belt. When the eccentric steering component rotates, the two ends of the transmission belt are pulled because the position of the transmission belt tangent to the outer ring of the eccentric steering component changes, thereby causing the two lifting optical shafts to rise or fall simultaneously.

[0037] A positioning cylinder is also provided on the side of the lifting component. When the lifting optical axis is fixed in a certain position, the output end of the positioning cylinder abuts against the side of the lifting optical axis, so that the lifting optical axis will not slide down due to gravity.

[0038] Furthermore, the transmission component also includes a first pulley and a second pulley, with both ends of the transmission belt passing over the first pulley and the second pulley respectively, before finally connecting to the bottom end of the lifting optical shaft;

[0039] The outer surface of the transmission belt is provided with anti-slip texture to increase the friction between the transmission belt and the first pulley, the second pulley and the eccentric steering component;

[0040] The eccentric steering component includes a steering wheel frame, which is connected to an eccentric adjustment block. The eccentric adjustment block is detachably installed in the circumferential direction of the steering wheel frame.

[0041] An auxiliary support block is also fitted into the middle of the eccentric adjustment block.

[0042] Furthermore, a locking inner frame is provided at the center of the steering wheel frame, and the locking inner frame is connected to a locking bolt. The tightness of the connection between the locking inner frame and the drive shaft is adjusted by setting the depth to which the locking bolt is screwed into the locking inner frame.

[0043] Both ends of the active rotating shaft are connected to eccentric steering components.

[0044] Compared with the prior art, the beneficial effects of this utility model are:

[0045] The system is equipped with a conveying component and a lateral lifting component, allowing the sheet metal to be fed into the equipment from different directions for screen printing. Both components can be lifted and conveyed independently, preventing the sheet metal from being scratched or jammed during transport. The two frame clamping components of the frame clamping and coating component have adjustable distances to accommodate different frame sizes. The clamping plate lifting cylinder can adjust the frame lifting and setting the coating rhythm and time. The U-shaped design of the clamping plate can support the weight of the frame. During installation, it is fixed by the clamping cylinder and clamping adjustment bolts, ensuring a secure installation and easy disassembly. Attached Figure Description

[0046] The accompanying drawings are provided to further illustrate the present invention and, together with the embodiments of the present invention, are used to explain the present invention. They do not constitute a limitation thereof. In the drawings:

[0047] Figure 1 This is a schematic diagram of the overall structure of the large-format screen printing machine according to an embodiment of the present invention;

[0048] Figure 2 This is an exploded view of a large-format screen printing machine according to an embodiment of this utility model;

[0049] Figure 3 This is an exploded view of the wire frame clamping and scraping assembly according to an embodiment of the present invention;

[0050] Figure 4 This is a partial exploded view of the wire mesh clamping component according to an embodiment of the present invention;

[0051] Figure 5 This is an exploded view of the wire frame clamping component according to an embodiment of the present invention;

[0052] Figure 6 This is an exploded view of the edge limiting component according to an embodiment of the present invention;

[0053] Figure 7 This is an exploded view of the conveying component according to an embodiment of the present invention;

[0054] Figure 8 This is a schematic diagram of the printing frame lifting mechanism according to an embodiment of the present utility model;

[0055] Figure 9 This is a structural diagram of the lifting power component according to an embodiment of the present utility model;

[0056] Figure 10 This is a schematic diagram of the transmission component and lifting component according to an embodiment of the present utility model;

[0057] Figure 11 This is an exploded view of the eccentric steering component according to an embodiment of the present invention;

[0058] Figure 12This is a schematic diagram of the overall structure of the horizontal moving lifting component according to an embodiment of the present utility model;

[0059] Figure 13 This is an exploded view of the horizontal moving lifting assembly according to an embodiment of this utility model;

[0060] Figure 14 This is a schematic diagram showing the connection of the power assembly, linkage assembly, and lifting structure in an embodiment of this utility model;

[0061] Figure 15 This is an exploded view of the power assembly, linkage assembly, and lifting structure of an embodiment of this utility model.

[0062] In the diagram: 1. Main frame; 2. Printing frame lifting mechanism; 201. Lifting power assembly; 2011. Lifting motor; 2012. Motor drive belt; 2013. Drive shaft; 202. Eccentric steering component; 2021. Steering wheel frame; 2022. Fixed inner frame; 2023. Eccentric adjusting block; 20231. Auxiliary support block; 203. Transmission component; 2031. Transmission belt; 2032. First pulley; 2033. Second pulley; 204. Lifting component; 2041. First lifting base; 2042. 1. Lifting optical shaft; 205. Positioning cylinder; 3. Conveying assembly; 301. Lifting component; 302. Conveying module; 303. Conveying support; 4. Lateral lifting assembly; 401. Power assembly; 4011. Power source; 4012. First swing arm; 4013. Central connecting rod; 4014. Second swing arm; 402. Linkage assembly; 4022. Third swing arm; 4023. Rotating rod; 403. Lifting structural component; 4031. Second lifting base; 4032. Lifting rod; 4033. Top bearing; 4034. Lifting... Horizontal frame; 404, platform frame; 4041, idler roller; 404, lifting conveyor module; 405, lifting support plate; 5, side limiting assembly; 501, double-sided lead screw; 502, side clamping part; 5021, clamping moving seat; 5022, clamping power seat; 5023, clamping cylinder; 5024, clamping plate; 503, end positioning component; 5031, end lifting cylinder; 5032, end positioning plate; 6, wire mesh frame clamping and scraping assembly; 601, clamping base; 602, moving module component; 603, scraping part Components; 604, Frame clamping component; 6041, Clamping moving seat; 6042, Clamping plate lifting cylinder; 6043, Clamping plate adjusting frame; 60431, Adjusting frame body; 60432, Nut block; 60433, Fine adjustment bolt; 6044, Clamping plate mounting seat; 6045, Clamping plate; 60451, Clamping cylinder; 60452, Clamping adjusting bolt; 6046, Frame clamping sliding base; 60461, Slider; 6047, Sliding adjusting rod; 60471, Sliding adjusting gear; 60472, Sliding adjusting handle. Detailed Implementation

[0063] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0064] like Figures 1 to 15 As shown, a novel fully automatic large-format screen printing machine includes a conveying assembly 3 and a horizontal movement lifting assembly 4 fitted together. The conveying assembly 3 includes a lifting member 301, the upper end of which is connected to a conveying module 302. The lifting member 301 is used to drive the conveying module 302 to rise or fall. The horizontal movement lifting assembly 4 includes a lifting structure 403, the upper end of which is connected to a platform frame 404. A support roller 4041 is mounted on the platform frame 404. The lifting structure 403 is used to drive the platform frame 404 to rise or fall. The conveying direction of the conveying module 302 and the rotation direction of the support roller 4041 are perpendicular to each other. Therefore, the conveying module 302 and the support roller 4041 can allow the board material to be input or output from two perpendicular directions, which is very convenient for loading and unloading the board material. Convenient, and thanks to the lifting component 301 and the lifting structure 403, when the conveying module 302 is used to transport the sheet material, the lifting component 301 raises the conveying module 302, and after the sheet material is introduced into the equipment, the conveying module 302 is lowered to the operating surface under the pull of the lifting component 301. When the idler roller 4041 is used to transport the sheet material, the lifting structure 403 raises the platform frame 404 and the idler roller 4041, and after the sheet material is introduced into the equipment, the idler roller 4041 is lowered to the operating surface. Therefore, neither the conveying module 302 nor the idler roller 4041 will be affected by other components when transporting the sheet material, and there will be no jamming of the sheet material transport, nor will the bottom of the sheet material be scratched, making the transport of the sheet material more convenient, faster and safer.

[0065] The conveying assembly 3 is provided with an edge limiting assembly 5, which includes an end positioning member 503 and two sets of side clamping parts 502 on both sides of the end positioning member 503. The end positioning member 503 and the two sets of side clamping parts 502 are used to position the three edges of the plate, so that the plate can be properly processed on the conveying assembly 3.

[0066] The edge limiting component 5 includes a double-sided lead screw 501, which is provided with opposite threads at both ends. These two opposite threads are respectively connected to two symmetrically mirror-arranged side clamping parts 502. When the double-sided lead screw 501 is rotated, both of them move towards the middle at the same time or separate towards both ends at the same time. This synchronous adjustment method can ensure that uniform pressure is applied to both sides of the clamped object, ensuring the stability and symmetry of the object during the clamping process, and avoiding tilting or uneven force on the object due to asynchronous adjustment on both sides.

[0067] The side clamping part 502 includes a clamping movable seat 5021, which is threadedly connected to the double-sided lead screw 501. The clamping movable seat 5021 is connected to the clamping cylinder 5023, and the output end of the clamping cylinder 5023 is connected to the clamping power seat 5022. A clamping plate 5024 is provided above the clamping power seat 5022. When clamping the sheet material, the relative positions of the two side clamping parts 502 are first adjusted so that they are close to the two sides of the sheet material. Then, the clamping cylinder 5023 is retracted so that the two clamping power seats 5022 move closer to the middle. Therefore, the sheet material is ultimately clamped by the pneumatic pressure of the clamping cylinder 5023. This causes the clamping plates 5024 on both sides to exert pressure on both sides of the sheet material, thereby fixing the sheet material and not just limiting it. This makes the sheet material more effectively fixed.

[0068] The end positioning component 503 includes an end lifting cylinder 5031, which is connected to an end positioning plate 5032. Under the drive of the cylinder, the end positioning plate 5032 can be stably held in a designated position, providing reliable end support for the object, preventing the object from shifting during processing, and ensuring the stability of the production process.

[0069] A wire mesh frame clamping scraping component 6 is provided directly above the conveying component 3. The wire mesh frame clamping scraping component 6 includes a clamping base 601. A moving module component 602 is provided above the clamping base 601. The moving module component 602 is used to provide kinetic energy and a moving track for the scraping component 603 to move directly above the conveying component 3 along a preset path.

[0070] The lower side of the clamping base 601 is connected to two symmetrically arranged wire mesh clamping members 604. The two wire mesh clamping members 604 are respectively arranged on both sides of the scraping component 603. The two wire mesh clamping members 604 are used to clamp the two ends of the wire mesh, so that the wire mesh can be fixed. The distance between the two wire mesh clamping members 604 can be adjusted according to the size of the wire mesh during production.

[0071] The wire mesh frame clamping component 604 includes a clamping movable seat 6041, which is connected to a clamping plate lifting cylinder 6042, and the clamping plate lifting cylinder 6042 is connected to a clamping plate mounting seat 6044. Therefore, the wire mesh frame can be raised and lowered as needed using the cylinder. During scraping, the scraping component 603 can contact the paint, and when not scraping, the scraping component 603 moves away from the wire mesh frame and simply moves above it, thereby setting the scraping rhythm and time.

[0072] The clamping moving base 6041 is connected to the mesh frame clamping sliding base 6046. The mesh frame clamping sliding base 6046 is provided with a slider 60461. The mesh frame clamping sliding base 6046 is rotatably connected to a sliding adjustment rod 6047. The sliding adjustment rod 6047 is provided with a sliding adjustment gear 60471. One end of the sliding adjustment rod 6047 is provided with a sliding adjustment handle 60472. The clamping base 601 is provided with a slide rail and a rack. The slider 60461 is connected to the slide rail, and the sliding adjustment gear 60471 is meshed with the rack. When it is necessary to clamp mesh frames of different lengths, the distance between the two mesh frame clamping components 604 can be adjusted by rotating the sliding adjustment handle 60472. By moving the mesh frame clamping sliding base 6046 on the clamping base 601, the distance between the two clamping plates 6045 can be coarsely adjusted.

[0073] The clamp mounting base 6044 has clamp adjustment frames 6043 inserted at both ends. The clamp adjustment frame 6043 includes an adjustment frame body 60431, in which a nut block 60432 is provided. The nut block 60432 is fixedly connected to the end of the clamp mounting base 6044. The nut block 60432 is threadedly connected to a fine-tuning bolt 60433, which is rotatably connected to the adjustment frame body 60431. The adjustment frame body 60431 is connected to the clamp 6045. When the fine-tuning bolt 60433 is rotated, the position of the clamp mounting base 6044 in the adjustment frame body 60431 can be adjusted, thereby adjusting the position between the clamp mounting base 6044 and the clamp 6045. Adjusting the fine-tuning bolt 60433 allows for fine adjustment of the distance between the two clamps 6045, making the limiting of the two clamps 6045 on both ends of the mesh frame more accurate.

[0074] The clamping plate 6045 is U-shaped and can be rotated 90 degrees. One side of the U-shape is connected to the clamping cylinder 60451 and the clamping adjustment bolt 60452. When installing the mesh frame, both ends of the mesh frame are inserted through the opening of the U-shape of the clamping plate 6045. The lower side plate of the U-shape of the clamping plate 6045 supports the mesh frame and can bear the weight of the mesh frame, making the mesh frame safer and more stable during use.

[0075] When installing the mesh frame, after the mesh frame is inserted into the U-shaped opening of the clamping plate 6045, the output end of the clamping cylinder 60451 holds the mesh frame in place. After both sides of the mesh frame are held in place, the clamping adjusting bolt 60452 is used to further fix the mesh frame, making the installation of the mesh frame more secure. This method also facilitates the disassembly of the mesh frame.

[0076] The horizontal moving lifting assembly 4 includes a power assembly 401, a linkage assembly 402, a lifting structure 403, and a platform frame 404; the linkage assembly 402 includes a rotating rod 4023, one end of which is connected to a third swing rod 4022. The power assembly 401 is used to drive the rotating rod 4023 to rotate, and the rotation of the rotating rod 4023 causes the third swing rod 4022 to swing.

[0077] The power assembly 401 includes a power source 4011 and a connecting rod 4013. The power source 4011 is a cylinder or an electric cylinder. The connecting rod 4013 has a first swing rod 4012 and a second swing rod 4014 rotatably connected to its two ends. The ends of the first swing rod 4012 and the second swing rod 4014 away from the connecting rod 4013 are each connected to a rotating rod 4023. The end of the first swing rod 4012 connected to the connecting rod 4013 is connected to the power source 4011. When the power source 4011 pushes the upper end of the first swing rod 4012 to move, the connecting rod 4013 is pushed and moves along its length. The rotating rod 4023 connected to the lower end of the first swing rod 4012 rotates accordingly. The upper end of the second swing rod 4014 swings with the movement of the connecting rod 4013. At this time, the rotating rod 4023 connected to the lower end of the second swing rod 4014 also rotates accordingly.

[0078] Rotating rod 4023 is rotatably connected to the main frame. Rotating rod 4023 only rotates during the entire linkage action and does not lift, lower, or move. When the power source 4011 pushes the top of the first swing rod 4012 to move, it will push the middle connecting rod 4013. Due to the linkage effect of the middle connecting rod 4013, the first swing rod 4012 and the second swing rod 4014 are in a parallel state. Therefore, the top of the first swing rod 4012 is pushed, and its bottom end drives the rotating rod 4023 to rotate. Then the top of the second swing rod 4014 is pushed by the middle connecting rod 4013, and the bottom end of the second swing rod 4014 also drives the rotating rod 4023 connected to it to rotate. The rotation of the two parallel rotating rods 4023 will drive all the third swing rods 203 connected to the rotating rod 4023 to swing.

[0079] The lifting structure 403 includes a second lifting base 4031, a lifting rod 4032 slidably inserted into the second lifting base 4031, and the upper end of the lifting rod 4032 is connected to the platform frame 404; the end of the third swing rod 4022 away from the rotating rod 4023 is located below the lifting rod 4032.

[0080] When the rotating rod 4023 rotates in the first direction, the end of the third swing rod 4022 that contacts the lifting rod 4032 will lift the lifting rod 4032, thereby raising the platform frame 404.

[0081] When the lever 4023 rotates in the second direction, the end of the third swing arm 4022 that contacts the lifting rod 4032 descends. The lifting rod 4032 descends due to gravity, causing the platform frame 404 to descend. As the platform frame 404 descends, the third swing arm 4022 also abuts against the bottom end of the lifting rod 4032, causing the platform frame 404 to descend slowly. The first and second directions are opposite; therefore, the action of the power source 4011 driving the first swing arm 4012 to rotate is ultimately converted into the action of the third swing arm 4022 pushing the lifting rod 4032 at its bottom end to raise and lower it.

[0082] In this embodiment, six sets of lifting structure components 403 are provided. Every two sets of lifting structure components 403 are connected to a lifting crossbeam 4034 at their upper ends, and every three sets of lifting structure components 403 are connected to a rotating rod 4023, thus forming a support surface that is square in top view. The lifting crossbeam 4034 is connected to the platform frame 404, and the platform frame 404 is provided with rollers 4041, so that the board can be placed stably on the platform frame 404. The surface of the rollers 4041 is provided with anti-slip texture to increase the friction between the rollers 4041 and the load. The rollers 4041 are set perpendicular to the lifting crossbeam 4034, so that the board can be moved by rotating the rollers 4041 when it needs to be transferred.

[0083] The end of the third rocker arm 4022 furthest from the rotating rod 4023 is connected to a apex bearing 4033. The outer edge of the apex bearing 4033 contacts the bottom end of the lifting rod 4032. This point contact method can effectively reduce the friction between the third rocker arm 4022 and the lifting rod 4032, making the third rocker arm 4022 push the lifting rod 4032 up or down more smoothly, and also improving the operating efficiency and stability of the entire transmission assembly.

[0084] Compared to traditional lifting transmission systems, which require precise adjustments to multiple parameters such as motor speed and gear ratio during commissioning and are difficult to troubleshoot during maintenance, this transmission assembly has a relatively simple structure. This assembly consists of a power component, a linkage component, and a lifting structure. The linkage component transmits the power from the power component to raise and lower the lifting rod. The lifting rod then pushes the platform frame to rise, and the platform frame lowers using its own weight. Therefore, the simple structure makes commissioning and maintenance easier, effectively reducing equipment downtime, improving production efficiency, and lowering subsequent operating costs.

[0085] The printing frame lifting mechanism 2 includes a lifting power component 201, which is connected to an eccentric steering component 202. The eccentric steering component 202 is connected to a transmission component 203, which is connected to a lifting component 204.

[0086] The lifting power assembly 201 drives the eccentric steering component 202 to rotate. The eccentric steering component 202 receives the rotational power from the lifting power assembly 201 and changes the tension distance of the transmission belt 2031 through its eccentric structure, thereby driving the lifting optical shaft 2042 to move. The transmission belt 2031 converts the rotational motion of the eccentric steering component 202 into the linear displacement of the lifting optical shaft 2042. The transmission component 203 includes the transmission belt 2031, and the lifting component 204 includes the lifting optical shaft 2042 slidably inserted into the first lifting base 2041. The first lifting base 2041 provides a stable guide track for the lifting optical shaft 2042. The two ends of the transmission belt 2031 are respectively connected to the bottom ends of the two lifting optical shafts 2042 to ensure that the two lifting optical shafts 2042 move synchronously and avoid tilting or jamming. The eccentric steering component 202 is located in the middle of the transmission belt 2031. The rotation of the eccentric steering component 202... At this time, the two ends of the transmission belt 2031 are pulled due to the change in the tangential position between the transmission belt 2031 and the outer ring of the eccentric steering component 202, thereby causing the two lifting optical shafts 2042 to rise or fall simultaneously. Compared with the traditional four-column lifting transmission that uses rigid transmission components, this transmission uses the transmission belt 2031 and the eccentric steering component 202 for transmission, making the adjustment of each component more flexible. In this embodiment, the degree and position of eccentricity of the eccentric steering component 202 are adjustable. By adjusting the eccentric steering component 202, the lifting height of the two lifting optical shafts 2042 can be flexibly controlled. In addition, compared with rigid linkages or gear transmissions, belt transmission has the effect of buffering impact forces, which can effectively reduce the wear of components. At the same time, it greatly reduces the dependence on the operator's technical level when installing and debugging the transmission components, and makes subsequent maintenance more convenient and faster.

[0087] A positioning cylinder 205 is also provided on the side of the lifting component 204. When the lifting optical shaft 2042 is fixed in one position, the output end of the positioning cylinder 205 abuts against the side of the lifting optical shaft 2042, so that the lifting optical shaft 2042 will not slide down due to gravity. This further ensures the stability of the four-column lifting transmission component. When the mesh frame is clamped at the upper end of the lifting optical shaft 2042 and the scraper scrapes the pigment inside the mesh frame, the mesh frame will be subjected to pressure from the scraper. At this time, the positioning cylinder 205 makes the positioning of the lifting optical shaft 2042 more stable and also avoids the transmission belt 2031 from being subjected to a large pulling force when the scraper applies pressure to the mesh frame. Therefore, the transmission belt 2031 is more durable.

[0088] The transmission component 203 also includes a first pulley 2032 and a second pulley 2033. The two ends of the transmission belt 2031 pass over the first pulley 2032 and the second pulley 2033 respectively, and finally connect to the bottom end of the lifting optical shaft 2042. The outer surface of the transmission belt 2031 is provided with anti-slip texture to increase the friction between the transmission belt 2031 and the first pulley 2032, the second pulley 2033 and the eccentric steering component 202.

[0089] The eccentric steering component 202 includes a steering wheel frame 2021, which is connected to an eccentric adjustment block 2023. The eccentric adjustment block 2023 is detachably installed in the circumferential direction of the steering wheel frame 2021. By adjusting the position of the eccentric adjustment block 2023 on the steering wheel frame 2021, the lifting optical shaft 2042 can be raised when the eccentric steering component 202 rotates to a certain angle, and lowered when rotated to another angle. By replacing the eccentric adjustment blocks 2023 of different sizes, the diameter at the maximum outer diameter of the steering wheel frame 2021 can be adjusted, thereby quickly adjusting the highest point of the lifting optical shaft 2042 and the lowest point of the lowering.

[0090] An auxiliary support block 20231 is also fitted into the middle of the eccentric adjustment block 2023. The auxiliary support block 20231 makes the contact surface between the transmission belt 301 and the eccentric steering component 202 larger, and improves the stability of the transmission.

[0091] The steering wheel frame 2021 has a locking inner frame 2022 at its center. The locking inner frame 2022 is connected to a locking bolt. The tightness of the connection between the locking inner frame 2022 and the drive shaft 2013 is adjusted by setting the depth to which the locking bolt is screwed into the locking inner frame 2022.

[0092] The lifting power assembly 201 includes a lifting motor 2011, which is connected to a drive shaft 2013 via a motor drive belt 2012. Both ends of the drive shaft 2013 are connected to eccentric steering components 202. One eccentric steering component 202 can drive two lifting optical shafts 2042 to lift. Therefore, two eccentric steering components 202 can drive four lifting optical shafts 2042 to lift. Only one lifting motor 2011 is needed to drive four lifting optical shafts 2042, thus ensuring the synchronicity of the lifting of the four lifting optical shafts 2042.

[0093] The first lifting base 2041 has a lubrication channel inside, which is connected to the sliding surface of the lifting optical shaft 2042, making the lifting of the lifting optical shaft 2042 smoother.

[0094] When the transmission assembly is operating, the eccentric steering component 202 receives rotational power from the lifting power component 201. An eccentric adjustment block 2023 is installed circumferentially on the steering wheel frame 2021 of the eccentric steering component 202, and its eccentric structure changes the distance of tension on the transmission belt 2031. The two ends of the transmission belt 2031 pass over the first pulley 2032 and the second pulley 2033 respectively, and are connected to the bottom end of the lifting optical shaft 2042. When the eccentric steering component 202 rotates, the position where the transmission belt 2031 is tangent to the outer ring of the eccentric steering component 202 changes, thereby pulling the two ends of the transmission belt 2031. The transmission belt 2031 converts the rotational motion of the eccentric steering component 202 into linear displacement of the lifting optical shaft 2042, causing the two lifting optical shafts 2042 to rise or fall simultaneously. Because one eccentric steering component 202 can drive two lifting optical shafts 2042, two eccentric steering components 202 can drive four lifting optical shafts 2042 to rise and fall synchronously. The lifting optical shaft 2042 is slidably inserted into the first lifting base 2041. The first lifting base 2041 provides a stable guide track for the lifting optical shaft 2042 to ensure its linear movement. When the lifting optical shaft 2042 is fixed in a certain position, the output end of the positioning cylinder 205 extends and abuts against the side of the lifting optical shaft 2042 to prevent the lifting optical shaft 2042 from sliding down due to gravity and to ensure the stability of the four-column lifting transmission assembly. When the mesh frame is clamped at the upper end of the lifting optical shaft 2042 and the scraper scrapes the pigment in the mesh frame, the positioning cylinder 205 can make the positioning of the lifting optical shaft 2042 more stable, avoid the scraper pressure from causing the transmission belt 2031 to be subjected to a large pulling force, and extend the service life of the transmission belt 2031.

[0095] This utility model is equipped with a conveying component 3 and a horizontal moving lifting component 4, which allows the sheet material to be conveyed into the equipment from different directions for screen printing. The two components can be lifted and conveyed separately, so that the sheet material will not be scratched or jammed during the conveying process. The two screen frame clamping components 604 of the screen frame clamping and scraping component 6 are adjustable in distance to adapt to different screen frame sizes. The clamping plate lifting cylinder 6042 can adjust the lifting of the screen frame and set the scraping rhythm and time. The U-shaped design of its clamping plate 6045 can support the weight of the screen frame. During installation, it is fixed by the clamping cylinder 60451 and the clamping adjusting bolt 60452, which makes the installation firm and easy to disassemble.

[0096] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A novel fully automatic large-format screen printing machine, characterized in that, Includes a conveying assembly (3) that is fitted together and a lateral movement lifting assembly (4); The conveying assembly (3) includes a lifting member (301), the upper end of which is connected to the conveying module (302); the lifting member (301) is used to drive the conveying module (302) to rise or fall. The horizontal moving lifting assembly (4) includes a lifting structure (403), the upper end of which is connected to the platform frame (404), and the platform frame (404) is provided with a roller (4041); the lifting structure (403) is used to drive the platform frame (404) to rise or fall. The conveying direction of the conveying module (302) and the rotation direction of the idler roller (4041) are perpendicular to each other; A wire mesh frame clamping and scraping assembly (6) is provided directly above the conveying assembly (3), and the wire mesh frame clamping and scraping assembly (6) is connected to the printing frame lifting mechanism (2).

2. The novel fully automatic large-format screen printing machine according to claim 1, characterized in that, The horizontal moving lifting component (4) is also provided with a power component (401) and a linkage component (402). The linkage component (402) includes a rotating rod (4023), one end of which is connected to a third swing rod (4022). The power component (401) is used to drive the rotating rod (4023) to rotate, and the rotation of the rotating rod (4023) causes the third swing rod (4022) to swing. The lifting structure (403) includes a second lifting base (4031), and a lifting rod (4032) is slidably inserted into the second lifting base (4031). The upper end of the lifting rod (4032) is connected to the platform frame (404).

3. The novel fully automatic large-format screen printing machine according to claim 2, characterized in that, The end of the third swing arm (4022) away from the rotating arm (4023) is located below the lifting arm (4032); When the rotating rod (4023) rotates in the first direction, the end of the third swing rod (4022) that contacts the lifting rod (4032) will lift the lifting rod (4032), thereby raising the platform frame (404); When the rotating rod (4023) rotates in the second direction, the end of the third swing rod (4022) that is in contact with the lifting rod (4032) descends, and the lifting rod (4032) descends due to gravity, thereby causing the platform frame (404) to descend; The first steering is opposite to the second steering; The third swing arm (4022) is connected to a vertex bearing (4033) at the end away from the rotating rod (4023), and the outer edge of the vertex bearing (4033) is in contact with the bottom end of the lifting rod (4032).

4. The novel fully automatic large-format screen printing machine according to claim 3, characterized in that, The power assembly (401) includes a central connecting rod (4013), and the two ends of the central connecting rod (4013) are respectively rotatably connected to a first swing rod (4012) and a second swing rod (4014). The ends of the first swing arm (4012) and the second swing arm (4014) away from the central connecting rod (4013) are respectively connected to a rotating rod (4023); The end of the first swing arm (4012) connected to the central connecting rod (4013) is connected to the power source (4011); When the power source (4011) pushes the upper end of the first swing rod (4012) to move, the middle connecting rod (4013) is pushed to move in its length direction, and the rotating rod (4023) connected to the lower end of the first swing rod (4012) rotates accordingly. The upper end of the second swing rod (4014) swings with the movement of the middle connecting rod (4013), and the rotating rod (4023) connected to the lower end of the second swing rod (4014) also rotates accordingly. The upper ends of the two lifting rods (4032) are connected to the lifting crossbeam (4034), the lifting crossbeam (4034) is connected to the platform frame (404), and the roller (4041) is set perpendicular to the lifting crossbeam (4034).

5. The novel fully automatic large-format screen printing machine according to any one of claims 1 to 4, characterized in that, The frame clamping scraping assembly (6) includes a clamping base (601), and a movable module component (602) is provided above the clamping base (601). The movable module component (602) is used to provide kinetic energy and a moving track for the movement of the scraping component (603). The clamping base (601) has two symmetrically arranged wire mesh clamping members (604) connected to its lower side. The two wire mesh clamping members (604) are respectively arranged on both sides of the scraping component (603). The two wire mesh clamping members (604) are used to clamp the two ends of the wire mesh so that the wire mesh can be fixed. The distance between the two wire mesh clamping members (604) can be adjusted according to the size of the wire mesh during production.

6. The novel fully automatic large-format screen printing machine according to claim 5, characterized in that, The wire mesh frame clamping component (604) includes a clamping movable seat (6041), which is connected to a clamping plate lifting cylinder (6042), and the clamping plate lifting cylinder (6042) is connected to a clamping plate mounting seat (6044). The clamp mounting base (6044) has clamp adjustment frames (6043) inserted at both ends. The clamp adjustment frame (6043) includes an adjustment frame body (60431). A nut block (60432) is provided in the adjustment frame body (60431). The nut block (60432) is fixedly connected to the end of the clamp mounting base (6044). The nut block (60432) is threadedly connected to a fine adjustment bolt (60433). The fine adjustment bolt (60433) is rotatably connected to the adjustment frame body (60431). The adjusting frame (60431) is connected to the clamping plate (6045). When the fine-tuning bolt (60433) is rotated, the position of the clamping plate mounting seat (6044) in the adjusting frame (60431) can be adjusted, thereby adjusting the position between the clamping plate mounting seat (6044) and the clamping plate (6045). The clamping plate (6045) is U-shaped and rotated 90 degrees. One side of the U-shape is connected to the clamping cylinder (60451) and the clamping adjusting bolt (60452).

7. The novel fully automatic large-format screen printing machine according to claim 6, characterized in that, The clamping movable seat (6041) is connected to the mesh frame clamping sliding base (6046). A slider (60461) is provided in the mesh frame clamping sliding base (6046). The mesh frame clamping sliding base (6046) is rotatably connected to a sliding adjustment rod (6047). A sliding adjustment gear (60471) is provided on the sliding adjustment rod (6047). A sliding adjustment handle (60472) is provided at one end of the sliding adjustment rod (6047). The clamping base (601) is provided with a slide rail and a rack, the slider (60461) is connected to the slide rail, and the sliding adjustment gear (60471) is meshed with the rack.

8. The novel fully automatic large-format screen printing machine according to claim 7, characterized in that, The printing frame lifting mechanism (2) includes a lifting power component (201), which is connected to an eccentric steering component (202), which is connected to a transmission component (203), and the transmission component (203) is connected to a lifting component (204). The lifting power assembly (201) is used to drive the eccentric steering component (202) to rotate; The transmission component (203) includes a transmission belt (2031), and the lifting component (204) includes a lifting optical shaft (2042) that is slidably inserted into the first lifting base (2041). The two ends of the transmission belt (2031) are respectively connected to the bottom ends of the two lifting optical shafts (2042). The eccentric steering component (202) is located in the middle of the transmission belt (2031). When the eccentric steering component (202) rotates, the two ends of the transmission belt (2031) are pulled because the position of the transmission belt (2031) and the outer ring of the eccentric steering component (202) changes, thereby causing the two lifting optical shafts (2042) to rise or fall at the same time. The lifting component (204) is also provided with a positioning cylinder (205) on its side. When the lifting optical shaft (2042) is fixed in a certain position, the output end of the positioning cylinder (205) abuts against the side of the lifting optical shaft (2042) so that the lifting optical shaft (2042) will not slide down due to gravity.

9. The novel fully automatic large-format screen printing machine according to claim 8, characterized in that, The transmission component (203) also includes a first pulley (2032) and a second pulley (2033). The two ends of the transmission belt (2031) pass over the first pulley (2032) and the second pulley (2033) respectively, and finally connect to the bottom end of the lifting optical shaft (2042). The outer surface of the transmission belt (2031) is provided with anti-slip texture to increase the friction between the transmission belt (2031) and the first pulley (2032), the second pulley (2033) and the eccentric steering component (202); The eccentric steering component (202) includes a steering wheel frame (2021), the steering wheel frame (2021) is connected to an eccentric adjusting block (2023), and the eccentric adjusting block (2023) is detachably installed on the circumferential direction of the steering wheel frame (2021); An auxiliary support block (20231) is also fitted into the middle of the eccentric adjustment block (2023).

10. The novel fully automatic large-format screen printing machine according to claim 9, characterized in that, The steering wheel frame (2021) is provided with a locking inner frame (2022) at its center. The locking inner frame (2022) is connected to a locking bolt. The tightness of the connection between the locking inner frame (2022) and the drive shaft (2013) is adjusted by setting the depth of the locking bolt into the locking inner frame (2022). Both ends of the active rotating shaft (2013) are connected to eccentric steering components (202).

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