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CN-122008686-A - High-strength thick film 3D net and preparation method and manufacturing equipment thereof

CN122008686ACN 122008686 ACN122008686 ACN 122008686ACN-122008686-A

Abstract

The invention discloses a high-strength thick film 3D net and a preparation method thereof, and relates to the technical field of tungsten wire net preparation. The invention relates to a method for manufacturing a printed steel mesh, which comprises the steps of taking tungsten wires with steel heald and reed as warp yarns, feeding the warp yarns to a shuttle weaving mechanism, adjusting the shuttle weaving mechanism to keep the same density and length of adjacent weft yarns, then feeding the shuttle weaving mechanism to weave into a net, and enabling the warp yarns to keep a straight form and the weft yarns to keep a vertically bent form all the time by adjusting different extensibility during shuttle weaving.

Inventors

  • QI RONGQIANG
  • LI JIAN
  • Zhao Heyue
  • ZHANG YUAN
  • WANG YI
  • CHEN WEI

Assignees

  • 上海华丝微精网科技有限公司

Dates

Publication Date
20260512
Application Date
20260312

Claims (10)

  1. 1. The utility model provides a high strength thick film 3D net, has warp and weft, its characterized in that, warp is linear type structure, weft is wave structure.
  2. 2. The preparation method of the high-strength thick film 3D net is characterized by comprising the following steps of: firstly, arranging and taking out tungsten wires with required mesh number from a winding shaft on tungsten wire braiding equipment through a tungsten wire warping mechanism, and relieving stress; selecting a steel heald and a reed corresponding to the mesh number and the wire diameter of the wire, and sequentially passing the tungsten wire treated in the first step through the steel heald and the reed according to the finished warp; Thirdly, taking the tungsten wire which is threaded with the steel heald and the reed in the second step as a warp yarn, and feeding the warp yarn to a weaving mechanism, and adjusting the weaving mechanism to enable adjacent weft yarns to keep the same density and length; The upper shuttle loom is used for weaving the upper shuttle loom into a net, and the warp always keeps a straight form and the weft keeps a form of bending up and down by adjusting different elongation rates during the weaving process; step five, checking the finished product of the blank, Step six, cleaning by using an ultrasonic cleaner; And seventhly, rolling and checking a finished product.
  3. 3. The preparation method of the high-strength thick film 3D net according to claim 2, wherein the tungsten filament braiding equipment comprises a mounting plate (1), a shuttle loom mechanism (2) and a warping mechanism (4) and a stress release assembly (5) are arranged on the mounting plate (1), the warping mechanism (4) comprises a limiting frame (401), a plurality of winding rollers (402) are movably embedded in the limiting frame (401), the outer surfaces of the winding rollers (402) are wound with warps (403), transmission gears (404) for driving the warps (403) to release are fixed on the tops of the winding rollers (402), and a plurality of tension sensors (410) for detecting the tension of the warps (403) are arranged on the outer surface of the limiting frame (401); The stress relief assembly (5) includes a plurality of guide rollers (502) for stretching the tungsten wire to adjust the elongation of the tungsten wire.
  4. 4. The method for preparing the high-strength thick film 3D net according to claim 3, wherein the warping mechanism (4) further comprises a mounting frame (406), a positive and negative motor (407) is fixedly arranged on the top of the mounting frame (406) through screws, a connecting shaft (408) is fixedly arranged at the output end of the positive and negative motor (407), first transmission inner driving belts (405) are connected between the outer surfaces of the transmission gears (404) in a meshed mode, and three bearing frames (409) are fixedly arranged on the outer surfaces of the limiting frames (401).
  5. 5. The method for preparing the high-strength thick film 3D net according to claim 4, wherein the stress release assembly (5) further comprises a pressure-resistant frame (501), a plurality of guide rollers (502) are equally divided into two groups, one group of guide rollers (502) is fixedly provided with a driven gear (503), the other group of guide rollers (502) is fixedly provided with a driving gear (504), the outer surface of the pressure-resistant frame (501) is fixedly provided with a plurality of supporting frames (505), and the outer surfaces of the supporting frames (505) are fixedly provided with servo motors (506) through screws.
  6. 6. The method for preparing the high-strength thick film 3D network according to claim 5, wherein a weft winding assembly (3) is further arranged at the top of the mounting plate (1), the weft winding assembly (3) comprises a fixing frame (301), a plurality of wefts (302) are sleeved in the fixing frame (301) through winding rollers, driving gears (303) are fixed at the top ends of the winding rollers, The outer surfaces of the driving gears (303) are connected with second transmission inner driving belts (304) in a meshed mode, a supporting bracket (305) is fixed at the top of the fixing frame (301), a driving motor (306) is fixed at the top of the supporting bracket (305) through screws, and a driving shaft (307) is fixed at the output end of the driving motor (306).
  7. 7. The method for preparing the high-strength thick film 3D network according to claim 6, wherein the bottom of the limiting frame (401) is fixedly connected with the top of the mounting plate (1), the top ends of the plurality of winding rollers (402) are movably penetrated to the outside of the limiting frame (401), the bottom of the mounting frame (406) is fixedly connected with the top of the limiting frame (401), the bottom end of the connecting shaft (408) is movably penetrated to the outside of the mounting frame (406), and the bottom end of the connecting shaft (408) is fixedly connected with the top of one of the transmission gears (404).
  8. 8. The method for manufacturing the high-strength thick film 3D network according to claim 7, wherein the bottom of the pressure-resistant frame (501) is fixedly connected with the top of the mounting plate (1), two ends of the guide rollers (502) movably penetrate through the outside of the pressure-resistant frame (501), the outer surfaces of the driven gears (503) are respectively meshed with the outer surfaces of the driving gears (504), and one ends of output shafts of the servo motors (506) are respectively fixedly connected with the outer surfaces of the driving gears (504).
  9. 9. The method of manufacturing a high-strength thick film 3D net according to claim 8, wherein the bottom of the fixing frame (301) is fixedly connected with the top of the mounting plate (1), two ends of the plurality of winding rollers movably penetrate through the outside of the fixing frame (301), the bottom of the driving shaft (307) movably penetrates through the outside of the supporting bracket (305), and the bottom of the driving shaft (307) is fixedly connected with the top of one of the driving gears (303).
  10. 10. A method of making a high strength thick film 3D web according to claim 9, comprising the steps of: S1, firstly, one ends of a plurality of wefts in a weft (302) are moved to the inside of a weft steel heald (205) corresponding to the wefts, and then one ends of a plurality of warps (403) are respectively inserted into corresponding insertion holes in a warp steel heald (203) and then inserted into a warp reed (202); S2, starting a driving motor (306) to drive a plurality of wefts (302) to be released outwards from a corresponding winding roller, wherein as a wire guide groove of a weft steel sheet heald (205) is in a wavy shape which is up and down, when the wefts (302) pass through the wire guide groove, the wefts are forced to shuttle according to a wavy track to form a bending shape of wave crests and wave troughs; S3, starting the driving motor (306) and simultaneously starting the positive and negative motor (407), outwards releasing warp threads (403) arranged on the surfaces of the winding rollers (402), respectively penetrating through the tension sensors (410) corresponding to the warp threads, and detecting the tension of the warp threads (403) until the tension sensor (410) detects that the tension value reaches a required value; S4, before the warp (403) enters the shuttle loom (201), the warp passes through the space between the outer surfaces of two adjacent guide rollers (502), a plurality of servo motors (506) are started, the servo motors drive driving gears (504) corresponding to the warp to rotate, the guide rollers (502) connected with the warp are driven to rotate, the driven gears (503) are driven to reversely rotate in the rotating process of the driving gears (504), the guide rollers (502) connected with the warp are driven to reversely rotate, the warp (403) is gently rubbed, and local bending and twisting stress of the warp (403) is automatically released.

Description

High-strength thick film 3D net and preparation method and manufacturing equipment thereof Technical Field The invention relates to the technical field of 3D (three-dimensional) networks, in particular to a high-strength thick film 3D network and a preparation method thereof. Background A printing steel mesh processed by tungsten wires is a special steel mesh for SMT solder paste printing aiming at special high-precision and high-wear-resistance requirements, belongs to customized special printing steel meshes, takes high-hardness and high-melting-point tungsten wires as mesh raw materials, forms tungsten wires with specific mesh number and mesh size through a precise braiding process, and is processed into the printing steel mesh which is matched with an SMT production line through the procedures of shaping, cutting, attaching aluminum and laser trimming Kong Zhelei, and is used for precisely printing solder paste on a bonding pad of a PCB. In the prior art, SMT is a surface mounting technology, which is a circuit mounting technology formed by mounting a leadless or short-pin surface assembly component on the surface of a PCB circuit board or the surface of other substrates, and then welding the surface assembly component by a dip soldering or hot air reflow soldering mode, in the SMT surface assembly technology, the printing process of the PCB board is a key process of surface mounting quality, and the printing steel mesh is used for printing a flat surface of the PCB board, on which no component is mounted, but the existing printing steel mesh is thinner and is easy to cause high-temperature damage of the component. We have therefore proposed a high strength thick film 3D web and method of making the same in order to solve the problems set forth above. Disclosure of Invention The invention aims to provide a high-strength thick film 3D net and a preparation method thereof, which are used for solving the problem that the printed steel net proposed by the background technology is thinner and easily causes high-temperature damage of elements. The high-strength thick film 3D tungsten wire mesh disclosed by the invention is provided with warps and wefts, wherein the warps are of a linear structure, and the wefts are of a wavy structure, and due to the special structure of the wefts, the tungsten wire mesh has a certain thickness in the vertical direction, so that a 3D stereoscopic effect is formed, the thickness is improved, and the problem of high-temperature damage is solved. The invention also discloses a preparation method of the high-strength thick film 3D net, which comprises the following steps: firstly, arranging and taking out tungsten wires with required mesh number from a winding shaft on tungsten wire braiding equipment through a tungsten wire warping mechanism, and relieving stress; selecting a steel heald and a reed corresponding to the mesh number and the wire diameter of the wire, and sequentially passing the tungsten wire treated in the first step through the steel heald and the reed according to the finished warp; Thirdly, taking the tungsten wire which is threaded with the steel heald and the reed in the second step as a warp yarn, and feeding the warp yarn to a weaving mechanism, and adjusting the weaving mechanism to enable adjacent weft yarns to keep the same density and length; The upper shuttle loom is used for weaving the upper shuttle loom into a net, and the warp always keeps a straight form and the weft keeps a form of bending up and down by adjusting different elongation rates during the weaving process; step five, checking the finished product of the blank, Step six, cleaning by using an ultrasonic cleaner; And seventhly, rolling and checking a finished product. In order to achieve the above purpose, the technical scheme is that the tungsten filament braiding device for the high-strength thick film 3D net comprises a mounting plate, a shuttle braiding mechanism, a warping mechanism and a stress release assembly are arranged on the mounting plate, the warping mechanism comprises a limiting frame, a plurality of winding rollers are movably embedded in the limiting frame, a plurality of warps are wound on the outer surfaces of the winding rollers, transmission gears for driving the warps to release are fixed on the tops of the winding rollers, a plurality of tension sensors for detecting the tension of the warps are arranged on the outer surfaces of the limiting frame, and the stress release assembly comprises a plurality of guide rollers for gently stretching the warps. The stress release component is arranged between the tatting mechanism and the warping mechanism, so that the tension or the elongation of the warp can be adjusted. In order to achieve better effect, a stress release component is also arranged between the weft winding component and the shuttle loom mechanism and used for adjusting the tension or the elongation rate of the weft, and the tension of the warp and the ten