A screen lifting device and a screen printing machine

Abstract

The utility model discloses a steel net lifting device and silk screen printing machine relates to silk screen printing technical field, the utility model discloses through the synchronous drive assembly of steel frame drive at least two swing arms of the edge distribution of steel net frame synchronous rotation, and through the sliding groove of opening on the support bearing and net frame connecting piece removal cooperation, to drive steel net frame whole synchronous do lifting movement to can avoid the situation that printing steel net inclines after descending, can improve the adhesion between printing steel net and the object of printing, and improve printing quality.

Description

Technical Field

[0001] This utility model relates to the field of screen printing technology, and in particular to a steel mesh lifting device and a screen printing machine. Background Technology

[0002] A screen printing machine is a device that uses a stencil as a printing plate and applies pressure with a squeegee to precisely print material onto a substrate. During printing, the stencil is typically controlled by lifting and lowering to conform to the surface of the substrate, ensuring alignment. After printing, the stencil is raised and separated from the substrate.

[0003] However, the current supports for fixing the steel mesh are usually cantilever structures. Under long-term use, the steel mesh is prone to tilting, which can cause gaps between the steel mesh and the substrate, reducing the printing quality. Utility Model Content

[0004] To address the problem that the lifting and lowering of the stencil using a cantilever structure is prone to tilting, resulting in gaps between the stencil and the substrate and reduced printing quality, this utility model is proposed to provide a stencil lifting device and a screen printing machine that overcomes or at least partially solves the above problems.

[0005] Based on a first aspect of the present invention, a steel mesh lifting device is provided, the steel mesh lifting device comprising:

[0006] A steel space frame, on which a printed steel mesh is installed;

[0007] At least two space frame connectors are spaced apart and distributed along the edge of the steel space frame, and the space frame connectors have sliding grooves.

[0008] A supporting beam is provided, which is located above the steel space frame.

[0009] A steel frame synchronous drive assembly is mounted on the supporting crossbeam, and the output shaft of the steel frame synchronous drive assembly corresponds one-to-one with the space frame connector.

[0010] At least two swing arms are connected to the output shaft of the steel frame synchronous drive assembly. When the steel frame synchronous drive assembly is activated, the swing arms are driven to perform reciprocating rotational motion.

[0011] At least two support bearings are provided, which are rotatably connected to the swing arm and move in cooperation with the sliding groove. When the steel frame synchronous drive assembly is working, it drives the steel grid frame to perform lifting and lowering movements.

[0012] An optional utility model embodiment further includes:

[0013] The first crossbeam guide rail is located on the supporting crossbeam and is vertically arranged;

[0014] The first crossbeam slider is located on the space frame connector and is slidably connected to the first crossbeam guide rail. When the steel frame synchronous drive assembly works, it drives the steel space frame to move up and down along the first crossbeam guide rail.

[0015] An optional utility model embodiment states that the steel frame synchronous drive assembly includes a lifting drive source and a lifting synchronous drive unit, wherein the lifting drive source is located on the supporting crossbeam, and the lifting synchronous drive unit includes:

[0016] A steel frame drive wheel is connected to the output shaft of the lifting drive source component.

[0017] At least two steel frame rotating wheels are rotatably connected to the support beam and are also connected to the swing arm via a transmission.

[0018] A steel frame timing belt is sleeved on the outside of the steel frame drive wheel and the steel frame rotating wheel, and forms a transmission connection with the steel frame drive wheel and the steel frame rotating wheel respectively. When the lifting drive source rotates, the steel frame timing belt drives all the steel frame rotating wheels to rotate.

[0019] In one optional utility model, when the number of swing arms is four and they are evenly distributed on both sides of the support beam, the number of lifting synchronous drive units is two. The steel frame synchronous drive assembly further includes a connecting shaft, which is drivenly connected to the output shaft of the lifting drive source component and to the steel frame drive wheel of the second lifting synchronous drive unit.

[0020] Based on a second aspect of this utility model, a screen printing machine is also provided, the screen printing machine including the steel mesh lifting device as described in any of the above utility models.

[0021] An optional utility model further includes a squeegee device for the screen printing machine, the squeegee device comprising:

[0022] A scraper support beam is slidably connected to the support crossbeam;

[0023] A synchronous drive assembly for scrapers is located on the support beam and is connected to the scraper support beam in a transmission manner, so that when the synchronous drive assembly for scrapers is working, it drives the scraper support beam to perform reciprocating linear motion.

[0024] A scraper telescopic cylinder is mounted on the support beam.

[0025] A printing squeegee is connected to the piston rod of a squeegee telescopic cylinder. When the squeegee telescopic cylinder extends or retracts, it drives the printing squeegee to move up or down towards the printing stencil.

[0026] An optional utility model embodiment, wherein the scraper synchronous drive assembly comprises:

[0027] A scraper drive source component, which is located on the support beam;

[0028] The scraper drive wheel is connected to the output shaft of the scraper drive source component.

[0029] A scraper driven wheel is located on the support crossbeam and is spaced apart from the scraper driving wheel;

[0030] A scraper timing belt is sleeved on the outside of the scraper drive wheel and the scraper driven wheel, and is respectively connected to the scraper timing belt and the scraper driven wheel for transmission. The scraper timing belt is connected to the scraper support beam.

[0031] When the scraper drive source is working, it drives the scraper synchronous belt to rotate, thereby causing the scraper support beam to reciprocate linearly along the support crossbeam.

[0032] An optional utility model further includes a paper-wiping spray device, which comprises:

[0033] A spray bottle having a liquid storage chamber configured to store cleaning fluid;

[0034] A connecting pipe, which is connected to the liquid passage of the liquid storage chamber;

[0035] A spray water pump, wherein the spray water pump is embedded in the connecting pipe;

[0036] A spray support beam, which is located on the support crossbeam;

[0037] A spray synchronous drive assembly, which is located on the spray support beam;

[0038] The nozzle is connected to the liquid path of the connecting pipe away from the spray bottle. When the spray water pump is working, it draws out the cleaning liquid in the storage chamber and sprays it onto the printing paper through the nozzle. The nozzle is connected to the spray synchronous drive assembly so that when the spray synchronous drive assembly is working, it drives the nozzle to perform reciprocating linear motion.

[0039] An optional utility model further includes a paper cleaning device for the screen printing machine, the paper cleaning device comprising:

[0040] A paper-wiping support beam, wherein the paper-wiping support beam is slidably connected to the support crossbeam;

[0041] A printing wiping paper is located on the wiping paper support beam and is used to abut against the printing stencil to clean the printing stencil;

[0042] A paper wiping synchronous drive assembly is located on the support beam and is connected to the paper wiping support beam so that when the paper wiping synchronous drive assembly is working, it drives the printing paper to reciprocate linearly along the surface of the printing stencil.

[0043] An optional utility model embodiment, wherein the paper erasing synchronization drive assembly comprises:

[0044] A paper wiping drive source, which is located on the support beam;

[0045] The paper wiping drive wheel is connected to the output shaft of the paper wiping drive source component.

[0046] A paper-wiping driven wheel is located on the support beam and is spaced apart from the paper-wiping driving wheel;

[0047] A paper wiping timing belt is sleeved on the outside of the paper wiping drive wheel and the paper wiping driven wheel, and is respectively connected to the paper wiping timing belt and the paper wiping driven wheel for transmission. The paper wiping timing belt is connected to the paper wiping support beam.

[0048] When the wiping paper drive source is working, it drives the wiping paper synchronous belt to rotate, thereby causing the printing wiping paper to reciprocate linearly along the support beam.

[0049] Compared with the prior art, this utility model includes a steel space frame, at least two space frame connectors, a supporting beam, a steel frame synchronous drive assembly, at least two swing arms, and at least two supporting bearings. A printed steel mesh is installed on the steel space frame. At least two of the space frame connectors are spaced apart along the edge of the steel space frame, and each connector has a sliding groove. The supporting beam is located above the steel space frame, and the steel frame synchronous drive assembly is mounted on the supporting beam. The output shaft of the steel frame synchronous drive assembly corresponds one-to-one with each space frame connector. The swing arms are drively connected to the output shaft of the steel frame synchronous drive assembly, and when the assembly operates, it drives the swing arms to reciprocate. The supporting bearings are rotatably connected to the swing arms and move in cooperation with the sliding grooves. When the synchronous drive assembly operates, it drives the steel space frame to move up and down. Therefore, by driving at least two swing arms distributed on the edge of the steel frame to rotate synchronously through the synchronous drive assembly of the steel frame, and by moving and cooperating with the sliding groove opened on the support bearing and the frame connector, the entire steel frame can be driven to move up and down synchronously. This can prevent the printing steel mesh from tilting after it is lowered, improve the adhesion between the printing steel mesh and the substrate, and improve the printing quality.

[0050] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description

[0051] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings.

[0052] In the attached diagram:

[0053] Figure 1 This is an exploded structural diagram of a steel mesh lifting device provided in an embodiment of this utility model;

[0054] Figure 2 yes Figure 1 Enlarged structural diagram at point A;

[0055] Figure 3 yes Figure 1 Enlarged structural diagram at point B;

[0056] Figure 4This is a side view of a steel mesh lifting device provided in an embodiment of the present invention;

[0057] Figure 5 This is a three-dimensional structural schematic diagram of a steel frame synchronous drive assembly provided in an embodiment of the present invention;

[0058] Figure 6 This is a front view structural diagram of a screen printing machine provided in an embodiment of this utility model;

[0059] Figure 7 This is a side view of a screen printing machine provided in an embodiment of the present invention;

[0060] Figure 8 This is an exploded view of the structure of a screen printing machine provided in an embodiment of the present invention;

[0061] Figure 9 This is a three-dimensional structural schematic diagram of a scraper device provided in an embodiment of the present utility model;

[0062] Figure 10 This is a three-dimensional structural diagram of a paper-wiping spray device provided in an embodiment of the present invention;

[0063] Figure label:

[0064] 100. Steel mesh lifting device; 110. Steel mesh frame; 111. Printed steel mesh; 120. Frame connector; 1201. Sliding groove; 130. Support beam; 140. Steel frame synchronous drive assembly; 141. Lifting drive source; 142. Lifting synchronous drive unit; 1421. Steel frame drive wheel; 1422. Steel frame rotating wheel; 1423. Steel frame synchronous belt; 1424. Connecting shaft; 150. Swing arm; 160. Support bearing; 170. First beam guide rail; 180. First beam slider; 200. Scraper device; 210. Scraper support beam; 220. Scraper synchronous drive assembly; 221. Scraper drive source; 222. Scraper drive wheel; 223. Scraper driven wheel; 224. Scraper synchronous belt; 230. Scraper... 240. Printing doctor blade; 250. Doctor blade slide rail; 260. Doctor blade slider; 300. Paper wiping spray device; 310. Sprayer pot; 320. Connecting pipe; 330. Spray water pump; 340. Spray support beam; 350. Spray synchronous drive assembly; 351. Spray drive source; 352. Spray drive wheel; 353. Spray driven wheel; 354. Spray synchronous belt; 360. Nozzle; 400. Paper wiping cleaning device; 410. Paper wiping support beam; 420. Printing paper wiping; 430. Paper wiping synchronous drive assembly; 431. Paper wiping drive source; 432. Paper wiping drive wheel; 433. Paper wiping driven wheel; 434. Paper wiping synchronous belt; 440. Paper wiping slide rail; 450. Paper wiping slider; 500. Feeding track. Detailed Implementation

[0065] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0066] Reference Figure 1-5 This utility model provides a steel mesh lifting device 100, which may include a steel mesh frame 110, at least two frame connectors 120, a support beam 130, a steel frame synchronous drive assembly 140, at least two swing arms 150, and at least two support bearings 160.

[0067] A printing steel mesh 111 is installed on the steel mesh frame 110. The printing steel mesh 111 is used to form contact with the substrate. The number of mesh frame connectors 120, the number of swing arms 150, and the number of support bearings 160 are consistent. At least two mesh frame connectors 120 are spaced apart on the edge of the steel mesh frame 110, that is, at least two mesh frame connectors 120 are distributed along the edge of the steel mesh frame 110. The mesh frame connectors 120 have sliding grooves 1201, which are used to move and engage with the support bearings 160, thereby realizing the transmission connection between the support beam 130 and the steel mesh frame 110. The mesh frame connectors 120 and the steel mesh frame 110 can be fixed by bolts, screws, welding, or other methods.

[0068] The supporting beam 130 is located above the steel space frame 110. The steel frame synchronous drive assembly 140 is mounted on the supporting beam 130. The output shafts of the steel frame synchronous drive assembly 140 correspond one-to-one with the space frame connectors 120. This one-to-one correspondence can also be understood as the number of output shafts of the steel frame synchronous drive assembly 140 being consistent with the number of space frame connectors 120. The swing arms 150 are connected to the output shafts of the steel frame synchronous drive assembly 140, so that when the steel frame synchronous drive assembly 140 is working, all swing arms 150 can be synchronously driven through at least two of its output shafts, thereby driving the swing arms 150 to perform reciprocating rotational motion. The reciprocating rotation angle of the swing arms 150 can be preset and is not limited here.

[0069] The support bearing 160 is rotatably connected to the swing arm 150 and movably engaged with the sliding groove 1201. This movable engagement can include sliding and rolling engagements, allowing for relative displacement between the support bearing 160 and the sliding groove 1201. For example, the support bearing 160 is embedded in the sliding groove 1201, thus limiting its travel distance when the swing arm 150 rotates, thanks to the limiting effect of the sliding groove 1201. Therefore, when the steel frame synchronous drive assembly 140 operates, all support bearings 160 can be synchronously driven via at least two output shafts, enabling the steel mesh frame 110 to perform lifting and lowering movements. Furthermore, the synchronous lifting and lowering of the entire printing steel mesh 111 prevents localized tilting after descent, which could lead to printing defects on the substrate. This improves the fit between the printing steel mesh 111 and the substrate, and enhances the printing quality.

[0070] In this embodiment of the utility model, the substrate can be a circuit board, a flat plate (metal plate or ceramic plate) or other device, and the corresponding printing material placed on the printing stencil 111 can be solder paste or adhesive or other materials.

[0071] In one or more embodiments of the utility model, reference is made to Figure 1 , Figure 2 as well as Figure 3 As shown, the steel mesh lifting device 100 may further include a first crossbeam guide rail 170 and a first crossbeam slider 180. The first crossbeam guide rail 170 is located on the supporting crossbeam 130 and is vertically arranged. The first crossbeam slider 180 is located on the mesh frame connector 120 and is slidably connected to the first crossbeam guide rail 170. That is, the mesh frame connector 120 and the supporting crossbeam 130 form a sliding fit through the first crossbeam guide rail 170 and the first crossbeam slider 180. Furthermore, since the first crossbeam guide rail 170 is vertically arranged, when the steel frame synchronous drive assembly 140 works to drive the swing arm 150 to rotate, the swing arm 150 drives the supporting bearing 160 to slide along the sliding groove 1201, and simultaneously drives the steel mesh frame 110 to perform vertical lifting and lowering movements along the first crossbeam guide rail 170. In other words, when the printed steel mesh 111 is synchronously driven to rise and fall, it will not be displaced in the horizontal direction, thereby ensuring the lifting accuracy of the steel mesh frame 110. Furthermore, the sliding cooperation between the first crossbeam guide rail 170 and the first crossbeam slider 180 improves the lifting stability of the steel mesh frame 110.

[0072] In one or more embodiments of the utility model, reference is made to Figure 1 and Figure 5As shown, the steel frame synchronous drive assembly 140 may include a lifting drive source 141 and a lifting synchronous drive unit 142.

[0073] The lifting drive source 141 is located on the supporting beam 130. The lifting drive source 141 outputs driving force to drive the steel grid frame 110 to lift. The lifting synchronous drive unit 142 may include a steel frame drive wheel 1421, at least two steel frame rotating wheels 1422, and a steel frame synchronous belt 1423. The steel frame drive wheel 1421 is operatively connected to the output shaft of the lifting drive source 141. For example, when the output shaft of the lifting drive source 141 rotates, it can drive the steel frame drive wheel 1421 to rotate. The steel frame rotating wheels 1422 are rotatably connected to the supporting beam 130 and operatively connected to the swing arm 150. The steel frame synchronous belt 1423 is sleeved on the radially outer side of the steel frame drive wheel 1421 and on the radially outer side of the steel frame rotating wheels 1422. The steel frame synchronous belt 1423 is operatively connected to both the steel frame drive wheel 1421 and the steel frame rotating wheels 1422. Therefore, when the lifting drive source 141 rotates and drives the steel frame drive wheel 1421 to rotate, the steel frame drive wheel 1421 drives the steel frame synchronous belt 1423 to drive, and then drives all the steel frame rotating wheels 1422 connected to the steel frame synchronous belt 1423 to rotate synchronously. Finally, it drives the swing arm 150 to rotate around its drive shaft connected to the steel frame rotating wheel 1422, and adjusts the vertical displacement of the swing arm 150 by rotation, thereby causing the support bearing 160 that cooperates with the grid frame connector 120 to drive the steel grid frame 110 to rise and fall.

[0074] In one or more embodiments of the utility model, reference is made to Figure 1 As shown, with four swing arms 150 evenly distributed on both sides of the support beam 130 (located on both sides of the support beam 130, and these two sides are opposite to each other), the number of lifting synchronous drive units 142 is two. The four swing arms 150 can be located on the inner side of the support beam 130, for example, close to the four vertices of the support beam 130. This allows the cooperation between the swing arms 150 and the space frame connector 120 to reduce the probability of the steel space frame 110 tilting during lifting.

[0075] The steel frame synchronous drive assembly 140 may further include a connecting shaft 1424, which is driveably connected to the output shaft of the lifting drive source 141. That is, the lifting drive source 141 may be a dual-output shaft drive source. The first output shaft of the lifting drive source 141 is driveably connected to the steel frame drive wheel 1421 of the first lifting synchronous drive unit 142, and the second output shaft of the lifting drive source 141 is driveably connected to the steel frame drive wheel 1421 of the second lifting synchronous drive unit 142. The driving force of the lifting drive source 141 is transmitted to the second lifting synchronous drive unit 142 via the connecting shaft 1424. The lifting drive source 141 may be installed on the support beam 130 near the area of ​​the first lifting synchronous drive unit 142. Thus, the synchronous drive of the four swing arms 150 can be achieved by a single lifting drive source 141 through the lifting synchronous drive unit 142. This improves the lifting stability of the printing stencil 111 and enhances the adhesion and printing quality between the printing stencil 111 and the substrate.

[0076] Reference Figure 1-10 As shown in the figure, this utility model embodiment also discloses a screen printing machine, which may include a steel mesh lifting device 100 as described in any of the above utility model embodiments.

[0077] In this embodiment of the utility model, the steel mesh lifting device 100 described in any of the above-mentioned utility model embodiments can drive at least two swing arms 150 distributed on the edge of the steel mesh frame 110 to rotate synchronously through the steel frame synchronous drive assembly 140. The support bearing 160 moves in cooperation with the sliding groove 1201 opened on the mesh frame connector 120, thereby driving the steel mesh frame 110 to move synchronously as a whole. This can prevent the printing steel mesh 111 from tilting after descending, improve the adhesion between the printing steel mesh 111 and the substrate, and improve the printing quality.

[0078] In one or more embodiments of the utility model, reference is made to Figure 1 , Figure 6 , Figure 7 , Figure 8 as well as Figure 9 As shown, the screen printing machine may further include a squeegee device 200. The squeegee device 200 is used to apply pressure to the printing stencil 111, so that the printing material can be accurately printed onto the substrate. The squeegee device 200 may include a squeegee support beam 210, a squeegee synchronous drive assembly 220, a squeegee telescopic cylinder 230, and a printing squeegee 240.

[0079] The scraper support beam 210 is slidably connected to the support beam 130, providing structural support for other components of the scraper device 200. The scraper synchronous drive assembly 220 is located on the support beam 130 and is drively connected to the scraper support beam 210, so that when the scraper synchronous drive assembly 220 is working, it drives the scraper support beam 210 to reciprocate linearly along its sliding trajectory with the scraper support beam 210. The scraper telescopic cylinder 230 is mounted on the support beam 130, and the printing scraper 240 is connected to the piston rod of the scraper telescopic cylinder 230. When the scraper telescopic cylinder 230 extends or retracts, it drives the printing scraper 240 to move up and down towards or away from the printing stencil 111.

[0080] In one example, a support through hole is provided in the middle region of the squeegee support beam 210, and the squeegee telescopic cylinder 230 is embedded in the support through hole and connected to the squeegee support beam 210. During material printing, the squeegee telescopic cylinder 230 is first extended, causing the printing squeegee 240 to descend and approach the printing stencil 111. Then, the squeegee synchronous drive assembly 220 is activated, causing the printing squeegee 240 to move back and forth along the surface of the printing stencil 111. This allows the printing material on the printing stencil 111 to adhere to the surface of the substrate through the printing holes in the printing stencil 111 under the action of the printing squeegee 240.

[0081] In one or more embodiments, refer to Figure 1 and Figure 8 As shown, the scraper device 200 may further include a scraper slide rail 250 and a scraper slider 260. The scraper slide rail 250 may be installed on the support beam 130, and the scraper slider 260 is fixedly connected to the support beam 130. Thus, the sliding trajectory of the scraper support beam 210 along the support beam 130 can be limited by the sliding cooperation between the scraper slide rail 250 and the scraper slider 260.

[0082] In one or more embodiments of the utility model, reference is made to Figure 1 and Figure 4 As shown, the scraper synchronous drive assembly 220 may include a scraper drive source 221, a scraper drive wheel 222, a scraper driven wheel 223, and a scraper timing belt 224.

[0083] The scraper drive source 221 is located on the support beam 130, and the scraper drive wheel 222 is drive-connected to the output shaft of the scraper drive source 221. The scraper driven wheel 223 is located on the support beam 130 and is spaced apart from the scraper drive wheel 222. The scraper timing belt 224 is sleeved on the radially outer side of the scraper drive wheel 222 and simultaneously on the radially outer side of the scraper driven wheel 223. The scraper driven wheel 223 is drive-connected to both the scraper timing belt 224 and the scraper driven wheel 223, wherein the scraper timing belt 224 is connected to the scraper support beam 210. For example, the scraper timing belt 224 can be detachably connected to the scraper support beam 210 by fasteners such as screws. When the squeegee drive source 221 is working, it can drive the squeegee drive wheel 222 to rotate. The squeegee drive wheel 222 drives the squeegee timing belt 224 to rotate, thereby driving the squeegee support beam 210, which is fixedly connected to it, to perform reciprocating linear motion along the support beam 130. In one example, those skilled in the art can determine the setting length of the squeegee timing belt 224 according to the actual required movement length of the printing squeegee 240, without making further limitations here.

[0084] In one or more embodiments of the utility model, reference is made to Figure 7 , Figure 8 as well as Figure 10 As shown, the screen printing machine may also include a paper wiping spray device 300. The paper wiping spray device 300 may include a spray bottle 310, a connecting pipe 320, a spray water pump 330, a spray support beam 340, a spray synchronous drive assembly 350, and a nozzle 360.

[0085] The spray bottle 310 has a liquid storage chamber configured to store cleaning fluid. For example, the spray bottle 310 can be mounted on the support beam 130, or the screen printing machine can also include a support base on which the spray bottle 310 is mounted. The connecting pipe 320 can be a flexible hose, communicating with the liquid passage of the liquid storage chamber, and the spray pump 330 is embedded in the connecting pipe 320. Thus, the cleaning fluid in the liquid storage chamber can be pumped through the connecting pipe 320 to an area outside the spray bottle 310 by the operation of the spray pump 330. The connecting pipe 320 can be formed by sealing multiple sections of flexible hose.

[0086] The spray support beam 340 is located on the support crossbeam 130, and the spray synchronization drive assembly 350 is located on the spray support beam 340. The nozzle 360 ​​is connected to the end of the connecting pipe 320 away from the spray bottle 310 via a liquid path. When the spray water pump 330 is working, it draws the cleaning liquid from the storage chamber and sprays it onto the printing wiper paper 420 through the nozzle 360. The nozzle 360 ​​is drively connected to the spray synchronization drive assembly 350 so that when the spray synchronization drive assembly 350 is working, it drives the nozzle 360 ​​to perform reciprocating linear motion. Thus, by operating the spray synchronization drive assembly 350, the nozzle 360 ​​can be moved to spray different areas of the printing wiper paper 420, thereby wetting the printing wiper paper 420 and allowing the wetted printing wiper paper 420 to clean the printing stencil 111.

[0087] In one or more embodiments, refer to Figure 10 As shown, the spray synchronization drive assembly 350 may include a spray drive source 351, a spray drive wheel 352, a spray driven wheel 353, and a spray synchronization belt 354. The spray drive source 351 is located on the spray support beam 340, and the spray drive wheel 352 is driveably connected to the output shaft of the spray drive source 351. The spray driven wheel 353 is located on the spray support beam 340 and is spaced apart from the spray drive wheel 352. The spray synchronization belt 354 is sleeved on the radially outer side of the spray drive wheel 352 and simultaneously on the radially outer side of the spray driven wheel 353. The spray driven wheel 353 is driveably connected to the spray synchronization belt 354 and the spray driven wheel 353, respectively. The spray synchronization belt 354 is connected to the nozzle 360. For example, the spray synchronization belt 354 can be detachably connected to the nozzle 360 ​​by fasteners such as screws. When the spray drive source 351 is working, it can drive the spray drive wheel 352 to rotate. The spray drive wheel 352 drives the spray timing belt 354 to rotate, thereby driving the nozzle 360, which is fixedly connected to it, to perform reciprocating linear motion along the spray support beam 340. In one example, those skilled in the art can determine the setting length of the spray timing belt 354 based on the length required to wet the printing wipe 420, and no further limitations are made here.

[0088] In one or more embodiments of the utility model, reference is made to Figure 4 and Figure 8As shown, the screen printing machine also includes a paper cleaning device 400, which may include a paper cleaning support beam 410, a printing paper 420, and a paper cleaning synchronization drive assembly 430. The paper cleaning support beam 410 is slidably connected to the support beam 130. The printing paper 420 is located on the paper cleaning support beam 410 and is used to contact and clean the printing stencil 111. The paper cleaning synchronization drive assembly 430 is located on the support beam 130 and is drivenly connected to the paper cleaning support beam 410, so that when the paper cleaning synchronization drive assembly 430 is working, it drives the printing paper 420 to reciprocate linearly along the surface of the printing stencil 111.

[0089] In one or more embodiments, refer to Figure 4 As shown, the paper wiping synchronous drive assembly 430 may include a paper wiping drive source 431, a paper wiping drive wheel 432, a paper wiping driven wheel 433, and a paper wiping synchronous belt 434.

[0090] The paper-wiping drive unit 431 is located on the support beam 130, and the paper-wiping drive wheel 432 is drive-connected to the output shaft of the paper-wiping drive unit 431. The paper-wiping driven wheel 433 is located on the support beam 130 and is spaced apart from the paper-wiping drive wheel 432. The paper-wiping timing belt 434 is sleeved on the radially outer side of the paper-wiping drive wheel 432 and simultaneously on the radially outer side of the paper-wiping driven wheel 433. The paper-wiping driven wheel 433 is drive-connected to both the paper-wiping timing belt 434 and the paper-wiping driven wheel 433, wherein the paper-wiping timing belt 434 is connected to the paper-wiping support beam 410. For example, the paper-wiping timing belt 434 can be detachably connected to the paper-wiping support beam 410 by fasteners such as screws. When the wiping paper drive source 431 is working, it can drive the wiping paper drive wheel 432 to rotate. The wiping paper drive wheel 432 drives the wiping paper timing belt 434 to rotate, thereby driving the wiping paper support beam 410, which is fixedly connected to it, to reciprocate linearly along the support beam 130. This allows the printing wiping paper 420 to reciprocate linearly on the surface of the printing stencil 111, thus cleaning the printing stencil 111. In one example, those skilled in the art can determine the setting length of the wiping paper timing belt 434 based on the actual required movement length of the printing wiping paper 420; no further limitations are imposed here.

[0091] In one or more embodiments, refer to Figure 4 and Figure 8As shown, the paper wiping cleaning device 400 may further include a paper wiping slide rail 440 and a paper wiping slider 450. The paper wiping slide rail 440 may be installed on the support beam 130, and the paper wiping slider 450 may be fixedly connected to the support beam 130. Thus, the sliding cooperation between the paper wiping slide rail 440 and the paper wiping slider 450 may limit the sliding trajectory of the paper wiping support beam 410 along the support beam 130.

[0092] Reference Figure 6 , Figure 7 as well as Figure 8 As shown, the screen printing machine may also include a feeding track 500 located below the steel screen frame 110. The feeding track 500 is used to place the printing substrate, so that when the steel screen frame 110 descends, it can maintain surface contact with the printing substrate located on the feeding track 500.

[0093] In this embodiment of the utility model, the power source component involved can be a motor or a driver formed by combining a motor and a reducer, etc., and no further limitations are imposed here.

[0094] In summary, this utility model discloses a steel mesh lifting device 100 and a screen printing machine. This utility model embodiment may include a steel mesh frame 110, at least two frame connectors 120, a support beam 130, a steel frame synchronous drive assembly 140, at least two swing arms 150, and at least two support bearings 160. A printing steel mesh 111 is mounted on the steel mesh frame 110. At least two of the frame connectors 120 are spaced apart along the edge of the steel mesh frame 110, and each frame connector 120 has a sliding groove 1201. The support beam 130 is located above the steel mesh frame 110, and the steel frame synchronous drive assembly 140 is mounted on the support beam 130. The output shaft of the steel frame synchronous drive assembly 140 corresponds one-to-one with each of the frame connectors 120. The swing arms 150 are drively connected to the output shaft of the steel frame synchronous drive assembly 140, and when the steel frame synchronous drive assembly 140 operates, it drives the swing arms 150 to perform reciprocating rotational motion. The support bearing 160 is rotatably connected to the swing arm 150 and moves in cooperation with the sliding groove 1201. When the steel frame synchronous drive assembly 140 is working, it drives the steel mesh frame 110 to move up and down. Thus, by driving at least two swing arms 150 distributed along the edge of the steel mesh frame 110 to rotate synchronously through the steel frame synchronous drive assembly 140, and by moving in cooperation with the sliding groove 1201 on the mesh frame connector 120 through the support bearing 160, the entire steel mesh frame 110 moves up and down synchronously. This prevents the printing mesh 111 from tilting after descent, improves the adhesion between the printing mesh 111 and the substrate, and enhances printing quality.

[0095] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0096] It will be readily apparent to those skilled in the art that any combination of the above embodiments is feasible. Therefore, any combination of the above embodiments is an implementation scheme of this utility model. However, due to space limitations, this specification will not describe them in detail here.

[0097] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of the present invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0098] Similarly, it should be understood that, in order to simplify the present invention and aid in understanding one or more of the various aspects of the invention, in the description of exemplary embodiments of the present invention above, various features of the present invention are sometimes grouped together in a single embodiment, figure, or description thereof.

[0099] Furthermore, those skilled in the art will understand that although some embodiments described herein include certain features but not others included in other embodiments, combinations of features from different embodiments are intended to be within the scope of this invention and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.

Claims

1. A wire mesh lifter characterized by, The steel mesh lifting device includes: A steel space frame, on which a printed steel mesh is installed; At least two space frame connectors are spaced apart and distributed along the edge of the steel space frame, and the space frame connectors have sliding grooves. A supporting beam is provided, which is located above the steel space frame. A steel frame synchronous drive assembly is mounted on the supporting crossbeam, and the output shaft of the steel frame synchronous drive assembly corresponds one-to-one with the space frame connector. At least two swing arms are connected to the output shaft of the steel frame synchronous drive assembly. When the steel frame synchronous drive assembly is activated, the swing arms are driven to perform reciprocating rotational motion. At least two support bearings are provided, which are rotatably connected to the swing arm and move in cooperation with the sliding groove. When the steel frame synchronous drive assembly is working, it drives the steel grid frame to perform lifting and lowering movements.

2. The wirelift apparatus of claim 1 wherein, The steel mesh lifting device also includes: The first crossbeam guide rail is located on the supporting crossbeam and is vertically arranged; The first crossbeam slider is located on the space frame connector and is slidably connected to the first crossbeam guide rail. When the steel frame synchronous drive assembly works, it drives the steel space frame to move up and down along the first crossbeam guide rail.

3. The steel mesh lifter of claim 1, wherein The steel frame synchronous drive assembly includes a lifting drive source component and a lifting synchronous drive unit. The lifting drive source component is located on the support crossbeam, and the lifting synchronous drive unit includes: A steel frame drive wheel is connected to the output shaft of the lifting drive source component. At least two steel frame rotating wheels are rotatably connected to the support beam and are also connected to the swing arm via a transmission. A steel frame timing belt is sleeved on the outside of the steel frame drive wheel and the steel frame rotating wheel, and forms a transmission connection with the steel frame drive wheel and the steel frame rotating wheel respectively. When the lifting drive source rotates, the steel frame timing belt drives all the steel frame rotating wheels to rotate.

4. The steel mesh lifter of claim 3, wherein When the number of swing arms is four and they are evenly distributed on both sides of the support beam, the number of lifting synchronous drive units is two. The steel frame synchronous drive assembly also includes a connecting shaft, which is drivenly connected to the output shaft of the lifting drive source component and to the steel frame drive wheel of the second lifting synchronous drive unit.

5. A screen printing machine characterized by, The screen printing machine includes a steel mesh lifting device as described in any one of claims 1-4.

6. The screen printing machine of claim 5, wherein, The screen printing machine further includes a squeegee device, which includes: A scraper support beam is slidably connected to the support crossbeam; A synchronous drive assembly for scrapers is located on the support beam and is connected to the scraper support beam so that when the synchronous drive assembly is working, it drives the scraper support beam to perform reciprocating linear motion. A scraper telescopic cylinder is mounted on the support beam. A printing squeegee is connected to the piston rod of a squeegee telescopic cylinder. When the squeegee telescopic cylinder extends or retracts, it drives the printing squeegee to move up or down towards the printing stencil.

7. The screen printing machine of claim 6, wherein, The scraper synchronous drive component includes: A scraper drive source component, which is located on the support beam; The scraper drive wheel is connected to the output shaft of the scraper drive source component. A scraper driven wheel is located on the support crossbeam and is spaced apart from the scraper driving wheel; A scraper timing belt is sleeved on the outside of the scraper drive wheel and the scraper driven wheel, and is respectively connected to the scraper timing belt and the scraper driven wheel for transmission. The scraper timing belt is connected to the scraper support beam. When the scraper drive source is working, it drives the scraper synchronous belt to rotate, thereby causing the scraper support beam to reciprocate linearly along the support crossbeam.

8. The screen printing machine of claim 5, wherein, The screen printing machine also includes a paper wiping spray device, which includes: A spray bottle having a liquid storage chamber configured to store cleaning fluid; A connecting pipe, which is connected to the liquid passage of the liquid storage chamber; A spray water pump, wherein the spray water pump is embedded in the connecting pipe; A spray support beam, which is located on the support crossbeam; A spray synchronous drive assembly, which is located on the spray support beam; The nozzle is connected to the liquid path of the connecting pipe away from the spray bottle. When the spray water pump is working, it draws out the cleaning liquid in the storage chamber and sprays it onto the printing paper through the nozzle. The nozzle is connected to the spray synchronous drive assembly so that when the spray synchronous drive assembly is working, it drives the nozzle to perform reciprocating linear motion.

9. The screen printing machine of claim 5, wherein, The screen printing machine also includes a paper cleaning device, which comprises: A paper-wiping support beam, wherein the paper-wiping support beam is slidably connected to the support crossbeam; A printing wiping paper is located on the wiping paper support beam and is used to abut against the printing stencil to clean the printing stencil; A paper wiping synchronous drive assembly is located on the support beam and is connected to the paper wiping support beam so that when the paper wiping synchronous drive assembly is working, it drives the printing paper to reciprocate linearly along the surface of the printing stencil.

10. The screen printing machine of claim 9, wherein, The paper erasing synchronization drive component includes: A paper wiping drive source, which is located on the support beam; The paper wiping drive wheel is connected to the output shaft of the paper wiping drive source component. A paper-wiping driven wheel is located on the support beam and is spaced apart from the paper-wiping driving wheel; A paper wiping timing belt is sleeved on the outside of the paper wiping drive wheel and the paper wiping driven wheel, and is respectively connected to the paper wiping timing belt and the paper wiping driven wheel for transmission. The paper wiping timing belt is connected to the paper wiping support beam. When the wiping paper drive source is working, it drives the wiping paper synchronous belt to rotate, thereby causing the printing wiping paper to reciprocate linearly along the support beam.

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