Multi-material screen production method and system

Abstract

The present application relates to the technical field of silk screen processing equipment, in particular to a multi-material silk screen production method and system, which adopts the arrangement mode of arranging the lower horizontal silk, the vertical middle silk and the upper horizontal silk from bottom to top, then welding the upper horizontal silk and the lower horizontal silk together, and setting the vertical middle silk as a U-shaped structure. The present application adopts the "sandwich type" combination mode to weld the multi-material silk into a net, the silk screen includes upper and lower horizontal silks, the U-shaped vertical middle silk is clamped between the two layers of horizontal silks, the middle silk is just clamped in the groove of the lower horizontal silk, so that the upper and lower horizontal silks are close to each other, the materials of the upper and lower horizontal silks are the same or similar, and have the fusible welding property, thereby forming the silk screen structure that the vertical middle silk is welded and fixed in the upper and lower horizontal silks.

Description

Technical Field

[0001] This invention relates to the field of wire mesh processing equipment technology, specifically a method and system for producing multi-material wire mesh. Background Technology

[0002] Wire mesh is a mesh structure made of threads arranged in both longitudinal and transverse directions. Wire mesh has applications in various fields, including industry, agriculture, science and technology, and national defense.

[0003] In order to fully utilize the functional characteristics of each material, such as improving the strength or conductivity of the mesh, enriching the function of the mesh, and reducing the cost of the mesh, the existing technology uses fine wires of multiple materials to form a mesh-like mesh.

[0004] When multiple materials are combined to form a wire mesh, it is difficult to achieve a strong weld during the processing due to the differences in the surface properties of each material. This is especially true when the materials contain both metal and non-metal components, making it difficult to splice them into a mesh through direct welding.

[0005] Besides welding, existing technologies commonly employ two processing methods: textile and injection molding. In textile processing, the two different materials used result in weak bonding and insufficient rigidity of the yarns. Injection molding, on the other hand, suffers from low processing efficiency. Therefore, both of these existing processes have certain limitations.

[0006] For the production and processing of composite wire mesh made of multiple materials, a new process and production equipment need to be designed. Summary of the Invention

[0007] To address the aforementioned technical problems, this invention provides a multi-material wire mesh production system, the technical solution of which is as follows: A method for producing multi-material wire mesh involves arranging the wires from bottom to top as a lower layer of horizontal wires, a longitudinal center wire, and an upper layer of horizontal wires. A U-shaped longitudinal center wire is sandwiched between the two layers of horizontal wires. The upper and lower layers of horizontal wires are then welded together, with the longitudinal center wire forming a U-shaped structure. This invention employs a "sandwich-style" joining method to weld wires of various materials into a mesh. Specifically, the wire mesh includes upper and lower layers of horizontal wires, with a U-shaped longitudinal center wire sandwiched between them. The lower layer of horizontal wires has a groove, and the center wire fits snugly within this groove, allowing the two layers of horizontal wires to adhere. The upper and lower layers of horizontal wires are made of the same or similar materials and are weldable, thus forming a wire mesh structure in which the longitudinal center wire is welded and fixed between the upper and lower layers of horizontal wires. In addition, the upper and lower frame cross wires and the U-shaped middle wire form a stable mesh structure. The U-shaped structure ensures that the outermost bottom wire and the cross wires of other materials will not be easily disengaged at the U-shaped bend after welding. The longitudinal wire of the middle wire is the end of the cross wire protruding at the opposite end of the U-shaped bend. Many ends are connected in series or parallel and welded together on the outside of the cross wire, which also prevents the longitudinal middle wire from disengaging from the outermost top cross wire.

[0008] A multi-material wire mesh production system, according to the above method, includes a middle wire bending device, a positioning mold, and a welding device. The middle wire bending device processes the middle wire into a U-shape, and then the lower horizontal wire, the U-shaped middle wire, and the upper horizontal wire are sequentially placed in the positioning mold. The welding device includes a welder for welding the upper horizontal wire and the lower horizontal wire together.

[0009] The medium-stretcher bending device includes a hinge mold, which comprises a fixed mold, a hinge mold shaft, and a rotating mold. The hinge mold shaft is fixedly connected to the rotating mold and is connected to a hinge rotation power mechanism. The fixed mold and the rotating mold each have a cavity to accommodate a mold core. The mold core is a thin plate structure with multiple through holes evenly distributed within it. The medium-stretcher raw material is inserted into these through holes. During mold closing, the included angle between the two mold cores can be rotated from 180° to 0°. The center distance between the through holes in the two mold cores is used to bend the same medium-stretcher inserted into the through holes of both mold cores into a U-shape.

[0010] To improve the efficiency and automation of the bending process, the wire bending device includes a turntable connected to a power unit on a base, which drives the turntable to rotate. Four sets of hinge molds are evenly distributed in a ring around the center of the turntable. The fixed molds are fixed to the turntable surface. The wire bending device has four stations arranged sequentially around the turntable: wire feeding, wire bending, mold core delivery, and mold core placement. At the die insertion station, the middle wire is sequentially inserted into the two die cores. The hinge rotation power mechanism acts on the hinge die shaft, rotating the rotating die to reduce the angle between the rotating die and the fixed die to less than 90°. To ensure complete die closing and produce a qualified U-shaped middle wire, the middle wire bending station is equipped with an auxiliary bending mechanism, including a die closing auxiliary power mechanism. This mechanism provides additional torque to the rotating die, ensuring the angle between the rotating die and the fixed die is zero. The die core ejection station is equipped with a die core ejection mechanism, which ejects the closed die core from the hinge die. Then, the hinge rotation power mechanism rotates in the opposite direction, rotating the rotating die to reduce the angle between the rotating die and the fixed die to 180°. At the die core placement station, a pair of new empty die cores are placed for the next operation.

[0011] A conductive slip ring is provided at the bottom of the turntable, and the slip ring is supported by its corresponding support frame. The conductive slip ring includes two parallel positive and negative concentric conductive strips. A carbon brush is connected below the hinge rotation power mechanism, passing through the turntable surface. The carbon brush receives electricity from the surface of the conductive slip ring to drive the low-voltage torque motor of the hinge rotation power mechanism. The above structure ensures that when the turntable rotates, the hinge rotation power mechanism can achieve steering control through the polarity arrangement on the conductive slip ring, avoiding the phenomenon of control circuit signal lines of multiple rotation power mechanisms becoming entangled during rotation or mutual interference of wireless control signals.

[0012] Within a 180° arc range below the three stations—the wire insertion station, the wire bending station, and the core ejection station—the conductive slip ring has two conductive strips with the same polarity. Within a 90° arc range below the core ejection station and the core insertion station, the polarities of the two parallel concentric conductive strips are interchanged. Within a 90° arc range below the core insertion station and the wire insertion station, no conductive strip is laid. The positive and negative poles on the corresponding tracks of the conductive slip ring, along with the absence of conductors, control the forward, reverse, and stop movements of the low-voltage torque motor of the hinge rotation power mechanism, thereby controlling the mold closing and opening actions of the hinge mold.

[0013] The die entry station is equipped with a die cutting mechanism. After the die entry is completed according to design requirements, the die cutting mechanism is used to cut the die wires to leave a set of die wires of the same length inside the die core. The die cutting mechanism includes a die cutter, a die cutter holder is provided on the upper part of the turntable, the die cutter is connected to the die cutter holder, and the die cutter is connected to a cutting power mechanism. The die cutter is located at the die entry station. The cutting power mechanism pushes the die cutter downward to cut all the die wires that have entered the die core, and then lifts the die cutter, leaving a set of die wires of the same length inside the die core.

[0014] The bottom of the hinge mold fixing mold is provided with a mold core push rod. By moving the mold core push rod, the mold core can be driven and pushed into the mold core box after the hinge mold is closed. The mold core box is movable and can be reused repeatedly. One end of the mold core box is open and is used to receive the ejected mold core. The mold core box can accommodate multiple layers of mold cores, which facilitates the transfer of mold cores carrying U-shaped wires in subsequent processes.

[0015] The input end of the wire bending device is equipped with a wire arranger, which includes a wire laying die. The wire laying die has multiple through-mouths, through which the wire passes. The through-mouths are designed with multiple rows and columns of large-area inlets. After being deformed and guided within the wire laying die, the wires are arranged in a neat single row at the outlet to ensure that the wires are fed into the die core at equal intervals and to maximize the separation between the wires before entering the wire laying die, preventing them from interfering with each other and tangling. The output end of the wire laying die is equipped with a pair of pressure rollers. The cylindrical surface of the pressure rollers has evenly arranged annular grooves. The grooves are semi-circular, and the two semi-circular grooves of the pair of pressure rollers are aligned to form a complete circle. The two pressure rollers move synchronously towards each other, feeding the wires into the die core at the wire entry station.

[0016] The positioning mold is mounted on a ring guide rail, which is connected to a ring guide rail power mechanism. The ring guide rail power mechanism drives the ring guide rail to move continuously in a cycle, and the ring guide rail drives the positioning mold to circulate between the wire transfer station and the welding station. The upper surface of the positioning mold has multiple rows of horizontal grooves and multiple columns of vertical grooves. The wire transfer device feeds the U-shaped wire into the vertical groove of the positioning mold, and the horizontal grooves of the positioning mold are used to position the upper and lower horizontal wires.

[0017] The U-shaped wire, bent by the wire bending device, is placed in two symmetrically placed mold cores. The mold cores are located in a mold core box, with only the bent U-shaped end protruding from the mold core. The wire transfer platform is responsible for pulling the U-shaped wire out of the mold core and precisely placing it in the vertical groove of the positioning mold. The wire transfer station is equipped with a wire transfer device, which includes multiple rows of wire hooks. The front end of each wire hook is a pointed structure, and a stepped wire hook groove is provided behind the pointed structure. The wire hooks are connected to wire hook sliding plates, which are connected to wire hook sliding drive mechanisms. The wire hook sliding drive mechanisms drive the wire hook sliding plates to move linearly, thereby driving the wire hooks to move linearly. The number of wire hooks installed on the wire hook sliding plates is the same as the number of U-shaped wires to be pulled.

[0018] To prevent the middle wire from slipping out of the groove of the hook beak during the pulling process, the hook beak is connected to the hook beak shaft, and a hook beak pressure spring is connected to the hook beak shaft. The hook beak pressure spring maintains a slight compression between the upper hook beak and the hook beak sliding plate. Adjusting the elasticity of the pressure spring to a suitable strength allows the middle wire to easily squeeze out the gap between the upper hook beak and the hook beak sliding plate, allowing the middle wire to enter its groove. Under the action of the hook beak pressure spring, the upper hook beak is pressed back and closed with the hook beak sliding plate, preventing the hook beak from opening automatically and preventing the middle wire from slipping out of the groove.

[0019] The middle wire transfer station is equipped with a fixed crossbar, which is a horizontal plate slightly higher than the tip of the hook wire beak. When the hook wire beak sliding plate moves to insert the tip of the hook wire beak into the lower part of the crossbar, the crossbar presses down on the hook wire beak and presses up the inclined surface, which in turn presses the hook wire beak compression spring, causing the upper hook wire beak to lift up. Under the constraint of the middle wire positioning block, the middle wire cannot move up with the upper hook wire beak, forcing the U-shaped middle wire to disengage from the hook wire groove and keeping the entire row of U-shaped middle wires in the vertical groove of the set positioning mold.

[0020] The medium-fiber transfer device includes a comb guide positioning device located at the medium-fiber transfer station. The comb guide positioning device includes multiple rows of parallel medium-fiber comb guides. The medium-fiber comb guides are parallel to the horizontal grooves of the positioning mold. The lower part of the medium-fiber comb guides has multiple n-shaped opening groove structures, and the n-shaped opening groove structures are arranged one-to-one with the vertical grooves of the positioning mold. The n-shaped opening grooves of the medium-fiber comb guides, together with the vertical grooves, form a cavity to limit the position of the medium-fiber in the horizontal direction.

[0021] The two ends of the comb guide are respectively connected to the comb guide support device. The comb guide support device includes a housing, on which a comb guide positioning groove is formed. A comb guide compression spring is connected in the positioning groove. The comb guide compression spring is connected to a comb guide plunger. The comb guide plunger presses down on the comb guide, thereby providing elastic pressure to the comb guide. The comb guide can be squeezed upward and automatically rebounds.

[0022] The housing has an upper horizontal wire through hole, which is used to guide the upper horizontal wire. The housing is higher than the positioning mold to avoid affecting the cyclic operation of the positioning mold.

[0023] The hook beak sliding plate has a sloping wedge-shaped middle wire comb guide at one end near the upper beak of the hook wire, and the top of the middle wire comb guide wedge can be inserted into the lower part of the middle wire comb guide.

[0024] The above structure is designed to facilitate the smooth completion of the wire hooking action. Specifically, as the wire hooking beak sliding plate moves from one side of the positioning mold to the side near the mold core box, it drives the middle wire comb guide wedge to move together. The top of the middle wire comb guide wedge is inserted into the lower part of the middle wire comb guide. This pushes the miniature bearings at both ends of the middle wire comb guide to roll on the inclined surface of the middle wire comb guide wedge. Constrained by the frame of the middle wire comb guide positioning groove, the middle wire comb guide can only be pushed upwards, and the middle wire comb guide compression spring is compressed by the middle wire comb guide plunger. This process separates the lower plane of the medium wire comb guide from the upper plane of the positioning mold, allowing it to pass through the hook beak sliding plate and the hook beak. The hook beak continues to move forward until it contacts the U-shaped medium wire bend in the mold core inside the fixed mold core box. The medium wire easily squeezes open the gap between the relatively moving hook beak and the hook beak sliding plate, allowing the medium wire to enter the hook groove of the hook beak. Under the action of the hook beak compression spring, the hook beak is pressed back and closes with the hook beak sliding plate, completing the hook beak hooking process.

[0025] After the hooking beak sliding plate, carrying the hooking beak, hooks the U-shaped center wire, the hooking beak sliding plate drive mechanism reverses its movement, pulling a row of U-shaped center wires out of the mold core. During the extraction process, the center wire comb guide wedge retracts along with the hooking beak sliding plate, and the center wire comb guide is sequentially pressed back close to the positioning mold by the center wire comb guide compression spring. Each "n"-shaped bridge hole of the center wire comb guide aligns with the "u"-shaped opening vertical groove on the positioning mold, forming an "O"-shaped hole in the middle with an additional center wire, thus successfully completing the hooking action.

[0026] To ensure that the middle wire moves to the welding station along with the upper and lower horizontal wires, a middle wire positioning block is provided to press the middle wire firmly before welding is completed, so that the middle wire also loses its freedom of movement in the vertical direction on the upper surface of the positioning mold. Specifically, multiple rows of middle wire positioning and fixing suction blocks are fixedly connected to the positioning mold. The middle wire positioning and fixing suction blocks are parallel to the horizontal grooves of the positioning mold and are arranged in multiple rows. The middle wire positioning blocks are thin, elongated blocks arranged horizontally with multiple n-shaped grooves that just avoid the cross-section of the middle wire. They are attracted and connected by the middle wire positioning and fixing suction blocks to press the middle wire firmly.

[0027] The central wire positioning block is equipped with a corresponding central wire positioning and removal adsorption block for its rotation. The central wire positioning and removal adsorption block is fixedly connected to the central wire positioning block longitudinal moving platform, which is connected to the central wire positioning block transverse moving platform. After the upper and lower layers of horizontal wires are welded, the central wire positioning block loses its function. After it leaves the welding station along with the central wire, the central wire positioning block longitudinal moving platform raises the central wire positioning and removal adsorption block to prevent it from bumping into the welding device during the transverse movement of the central wire positioning and removal adsorption block. The central wire positioning and removal adsorption block falls down with the central wire positioning and removal adsorption block. The central wire positioning and removal adsorption block in the positioning mold closes its suction, and the central wire positioning and removal adsorption block opens its suction. The central wire positioning block moves again with the central wire positioning and removal adsorption platforms to the top of the central wire transfer station to position the central wire in the next set of positioning molds.

[0028] The positioning and fixing adsorption block and the positioning and removal adsorption block for the central wire can be adsorbed using electromagnetic attraction or air suction. When using electromagnetic attraction, the positioning and fixing adsorption block and the positioning and removal adsorption block for the central wire are electromagnets, and the adsorption, positioning or removal of the central wire positioning block is achieved by energizing and de-energizing the electromagnet.

[0029] The medium wire transfer station is equipped with a fixed crossbar, which is a horizontal plate slightly higher than the tip of the hook wire beak. When the hook wire beak sliding plate moves to insert the tip of the hook wire beak into the lower part of the crossbar, the hook wire beak sliding plate drive motor stops, the medium wire positioning block longitudinal platform moves down and places the medium wire positioning block on the corresponding medium wire positioning fixed adsorption block, fixing the medium wire pulled out by the hook wire beak. The hook wire beak sliding plate drive motor restarts and continues to pull the medium wire. The crossbar presses down on the hook wire beak and presses up the inclined surface, pressing the hook wire beak compression spring, so that the hook wire beak rotates around its own hook wire beak rotation axis. The front end of the hook wire beak, the upper hook wire beak, is raised. Under the fixation of the medium wire positioning block, the medium wire cannot move up with the upper hook wire beak, forcing the U-shaped medium wire to disengage from the hook wire beak front end hook wire groove, leaving the entire row of U-shaped medium wires in the vertical groove of the set horizontal wire positioning mold.

[0030] The welding apparatus includes a welder that welds the upper and lower horizontal wires together, and the welder includes one of an ultrasonic welder, a laser welder, or a hot plate welder.

[0031] The welding station is equipped with a welding clamping device to clamp the three layers of material—upper horizontal wire, middle wire, and lower horizontal wire—ensuring their alignment within the positioning mold, particularly ensuring accurate alignment of the upper and lower horizontal wires on the welding surface. The welding clamping device includes a welding clamping power mechanism and a welding clamping frame connected to it. The welding clamping power mechanism drives the welding clamping frame to move up and down.

[0032] The beneficial effects achieved by this invention are: This invention employs a "sandwich" bonding method to weld wires of various materials into a mesh. The mesh includes upper and lower layers of horizontal wires, with a U-shaped longitudinal center wire sandwiched between the two layers of horizontal wires. The center wire fits precisely into the groove of the lower layer of horizontal wires, bringing the upper and lower layers of horizontal wires close together. The upper and lower layers of horizontal wires are made of the same or similar materials and are weldable, thus forming a mesh structure in which the longitudinal center wire is welded and fixed between the upper and lower layers of horizontal wires.

[0033] In addition, the upper and lower frame cross wires and the U-shaped middle wire form a stable mesh structure. The U-shaped structure ensures that the bottom horizontal ribs and wires of other materials will not be easily disengaged at the U-shaped bend after welding. The longitudinal wire of the middle wire is the end of the cross wire protruding at the opposite end of the U-shaped bend. Many ends are connected in series or parallel and welded into one piece on the outside of the cross wire, which also prevents the longitudinal middle wire from disengaging from the horizontal ribs.

[0034] The wire bending device of this invention has a novel and practical structure. Through the structure of the core and the hinge mold, it can complete the bending of the wire and bend multiple wires into a U-shape at the same time. The bending process is highly efficient and fully automated. This invention, in conjunction with a wire transfer device, can flexibly transfer the U-shaped wire located in the mold core to the positioning mold, and accurately position the three layers of materials—upper horizontal wire, middle wire, and lower horizontal wire—to complete subsequent precise welding. Attached Figure Description

[0035] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a structural diagram of a multi-material wire mesh production system; Figure 2 This is a structural diagram of the four stations of the wire bending device (first position). Figure 3 This is a schematic diagram of the middle wire bending device (second position). Figure 4 yes Figure 3 Front view; Figure 5 This is a schematic diagram of the mold core structure; Figure 6 This is a structural diagram of the mold core and mold core box (with the mold core being fed into the mold core box and the working state of the mold core being rotated and cut off). Figure 7 This is a schematic diagram of the structure of the push rod for fixing the lower mold core; Figure 8 This is a schematic diagram of the connection between a conductive slip ring and a low-voltage torque motor; Figure 9 This is a schematic diagram of the main structure of the medium wire arranger; Figure 10 This is a schematic diagram of the structure of the medium-fiber material support; Figure 11 This is a structural schematic diagram of the wire transfer device and welding device (first orientation). Figure 12 This is a structural schematic diagram of the wire transfer device and welding device (second position). Figure 13 This is a schematic diagram of the structure of the mold core and mold core box containing the middle wire; Figure 14 This is a schematic diagram of the structure at the transfer station for the medium-sized silk thread; Figure 15 This is an enlarged view of the positioning mold at the intermediate wire transfer station; Figure 16 This is a schematic diagram of the structure of the hooked beak; Figure 17 yes Figure 12 Enlarged view of the finished wire mesh structure at point A.

[0036] In the diagram: 1. Medium wire feeding system; 1-1. Medium wire; 1-2. H-beam reel; 1-3. Belt; 1-4. Wire feeding shaft; 1-5. Belt tensioning wheel; 1-6. Medium wire material support; 1-7. Wire feeding motor; 2. Wire arranging device; 2-1. Wire arranging die; 2-2. Pressure roller wire arranging wheel; 2-3. Pressure roller drive gear; 2-4. Pressure roller drive motor; 2-5. Wire arranging cutter; 2-6. Wire arranging cutter drive cylinder; 2-7. Pressing die core cylinder; 2-8. Die core; 2-81. Through hole; 2-82. Wire hooking groove; 2-83. Wire bending groove; 2-84. Die core lip; 2-85. Push core step; 2-86. Die core positioning hole; 2-9. Arranger displacement guide rail; 2-10. Displacement power mechanism; 3. Medium wire bending device; 3-1. Turntable; 3-2. Medium wire entry station; 3-3. Medium wire bending station; 3-4. Die core delivery station; 3-5. Die core placement station; 3-6. Die core pusher rod; 3-7. Die core pusher cylinder; 3-8. Base; 3-9. Support frame; 3-10. Die core box; 3-11. Die core box clamping cylinder; 3-12. Core loading basket; 3-13. Basket support column; 3-14. Flow strip; 3-15. Low-voltage torque motor; 3-16. Die core pressing strip; 3-17. 3-18. Medium wire cutter holder; 3-19. Mold closing auxiliary cylinder; 3-19. Mold core push rod; 3-191. Protrusion; 3-20. Turntable drive motor; 3-21. Conductive slip ring; 3-211. Positive electrode; 3-212. Negative electrode; 3-213. Cross wire; 3-22. Carbon brush; 3-23. Rotating mold; 3-24. Hinge mold shaft; 3-25. Fixed mold; 3-26. Mold core suction cup; 3-27. Mold core rotation, lifting and translation platform; 3-28. Mold core compartment; 3-29. Mold core positioning rod; 4. Mold core turnover system; 5. Mold core box circulation system; 5-1. Lifting platform; 6. Finished rolls; 7. Welding equipment; 7-1 Welder; 7-2 Wire removal basket longitudinal moving platform; 7-3 Wire removal basket transverse moving platform; 7-4 Wire removal basket positioning cylinder; 7-5 Wire removal basket; 7-6 Positioning mold; 7-7 Circular guide rail slider; 7-8 Welding clamping cylinder; 7-9 Circular guide rail drive motor; 7-10 Machine frame; 8. Medium filament transfer device; 8-1. Medium filament positioning block longitudinal moving platform; 8-2. Medium filament positioning block transverse moving platform; 8-3. Medium filament positioning and removal adsorption block; 8-4. Medium filament positioning block; 8-5. Medium filament comb guide positioning groove; 8-6. Medium filament comb guide compression spring; 8-7. Medium filament comb guide plunger; 8-8. Medium filament comb guide; 8-9. Medium filament positioning and fixing adsorption block; 8-10. Fiber hook; 8-101. Fiber hook upper beak; 8-102. Fiber hook groove; 8-103. Fiber hook rotating shaft; 8-104. Fiber hook pressing inclined surface; 8-105. Fiber hook tail tip; 8-11. Medium filament comb guide wedge; 8-12. Fiber hook sliding plate drive motor; 8-13. Fiber hook sliding plate; 8-14. Fiber hook compression spring; 8-15. Crossbar; 9. Upper layer horizontal yarn roll; 9-1. Upper layer horizontal yarn; 10. Lower layer horizontal wire roll; 10-1. Lower layer horizontal wire. Detailed Implementation

[0037] 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.

[0038] Example: like Figure 1 As shown, a multi-material wire mesh production system includes a middle wire feeding system 1, a middle wire arranging device 2, a middle wire bending device 3, a core turnover system 4, a core box circulation system 5, a finished roll 6, a welding device 7, a middle wire transfer device 8, an upper horizontal wire roll 9, and a lower horizontal wire roll 10.

[0039] like Figure 1 , Figure 10The medium wire material holders 1-6 shown all have the same medium wire size and specifications. Multiple parallel feeding shafts 1-4 are installed on the medium wire material holders 1-6, and multiple I-beams 1-2 are connected to the feeding shafts 1-4. The medium wire 1-1 is wound on the I-beams 1-2. The same material holder 1-6 uses I-beams 1-2 of the same specification, and the same medium wire of the same size and specifications is wound on the same winding machine, so that the multiple I-beams are matrix-distributed and controlled by the same medium wire feeding motor 1-7. When different I-beams 1-2, or when the specifications of the wire wound on the same I-beam are inconsistent, multiple medium wire material holders 1-6 need to feed the wire separately to the same medium wire arranger 2.

[0040] The feeding shaft 1-4 is connected to a feeding transmission mechanism, which in turn is connected to a feeding power mechanism. Specifically, the feeding power mechanism includes a feeding motor 1-7, which is connected to a belt 1-3. The belt 1-3 then drives the feeding shaft 1-4. A belt tensioning wheel 1-5 is installed on the medium-strength material support 1-6 to tension the belt. The feeding motor 1-7 simultaneously drives all the medium-strength I-beam pulleys 1-2, controlling the feeding speed of the feeding motor 1-7 based on the feed speed feedback from the pressure roller drive motor 2-4.

[0041] like Figure 1 , Figure 9 As shown, the wire arranging device 2 includes a wire arranger 2, which includes a wire arranging mold 2-1. The wire arranger 2-1 has multiple through-flare openings, which introduce the vertically matrix-arranged wires 1-1 into the flare openings. The wires pass through the through-flare openings.

[0042] The output end of the wire-laying die 2-1 is equipped with a pair of pressure rollers 2-2. The cylindrical surface of each pressure roller 2-2 has evenly arranged annular grooves, which are semi-circular. The two semi-circular grooves of the pair of pressure rollers 2-2 are aligned to form a complete circle. The middle wire 1-1, after being arranged by the wire-laying die 2-1, enters the pair of semi-circular grooves of the pressure rollers 2-2. The middle wire 1-1 is tightly pressed within the grooves. The surface of the pressure rollers 2-2 is made of a material with a higher coefficient of friction than the surface material of the middle wire; for example, if the middle wire is made of lead, a rubber pressure roller is used.

[0043] Two pressure roller guide wheels 2-2 are connected to the pressure roller power mechanism, causing the two pressure roller guide wheels 2-2 to move synchronously towards each other. The pressure roller guide wheels 2-2 feed the center wire into the die core 2-8 at the center wire entry station. The pressure roller power mechanism includes a pressure roller drive motor 2-4, which is a stepper motor or a servo motor. It can control the wire feeding length of the center wire 1-1 according to the depth of the through hole in the die core 2-8. The pressure roller drive motor 2-4 is connected to two meshing pressure roller drive gears 2-3. The two pressure roller drive gears 2-3 drive the two pressure roller guide wheels 2-2 to rotate synchronously towards each other.

[0044] To ensure that the turntable 3-1 does not collide with the wire arranger 2 during rotation, and that the wire arranger 2 can be as close as possible to the turntable 3-1 after the turntable 3-1 has rotated to its final position, the distance between the wire extruded by the pressure roller 2-2 and the through hole of the die core 2-8 is reduced, allowing the wire 1-1 to accurately enter the through hole 2-81 of the die core 2-8. The wire arrangement die 2-1, the pressure roller 2-2, and the pressure roller power mechanism are all mounted on the sliding plate. The frame corresponding to the wire arranger 2 is equipped with an arranger displacement guide rail 2-9. The sliding plate is slidably connected to the arranger displacement guide rail 2-9, and the sliding plate is connected to the displacement power mechanism 2-10, which is a cylinder.

[0045] like Figures 1 to 5 As shown, the wire bending device includes a turntable 3-1. The circular turntable 3-1 is connected to a turntable power unit on the base 3-8. The turntable power unit includes a turntable drive motor 3-20, which drives the turntable 3-1 to rotate. Four sets of hinge molds are evenly distributed in a ring around the center of the turntable on the turntable 3-1. Each hinge mold includes a fixed mold 3-25, a hinge mold shaft 3-24, and a rotating mold 3-23. The fixed mold 3-25 is fixed to the surface of the turntable 3-1. The hinge mold shaft 3-24 is fixedly connected to the rotating mold 3-23 and is connected to a hinge rotation power mechanism. The hinge rotation power mechanism includes a low-voltage torque motor 3-15, which drives the hinge mold shaft 3-24 to rotate, thereby driving the rotating mold 3-23 to rotate, performing mold closing and opening actions. The fixed mold 3-25 and the rotating mold 3-23 each have a cavity that can just accommodate one mold core.

[0046] like Figure 5 As shown, the mold core 2-8 is a thin plate structure. Multiple through holes 2-81 are evenly distributed on the thin plate of the mold core 2-8. The middle wire passes through the through holes 2-81. The inner diameter of the through hole 2-81 is slightly larger than the diameter of the middle wire that needs to pass through, generally controlled to be 1.05 to 1.5 times the diameter of the middle wire. The outer side of the mold core 2-8 is provided with a mold core lip 2-84, a mold core positioning hole 2-86, and a core pusher step 2-85, facilitating precise positioning of the mold core 2-8 by tooling fixtures during turnover. To reduce the displacement of the middle wire 1-1 within the mold core 2-8 during bending, the mold core 2-8 has a bending groove 2-83 for bending the middle wire in the area corresponding to the hinge mold shaft, and a hook groove 2-82 for the hook beak 8-101 tip to insert into the space.

[0047] like Figure 2 , Figure 3 , Figure 4 , Figure 8As shown, the wire bending device is provided with a wire entry station 3-2, a wire bending station 3-3, a core ejection station 3-4, and a core placement station 3-5, which are evenly distributed around the center of the turntable at 90° intervals.

[0048] A conductive slip ring 3-21 is provided at the lower part of the turntable 3-1. The conductive slip ring 3-21 is supported by its corresponding support frame 3-9, and the lower part of the support frame 3-9 is fixedly connected to the base 3-8. The conductive slip ring 3-21 includes two parallel concentric conductive strips with positive and negative terminals, namely positive terminal 3-211 and negative terminal 3-212, and corresponding cross conductors 3-213 are provided. Within a 180° arc range below the three stations from the wire insertion station 3-2, the wire bending station 3-3 to the core delivery station 3-4, the two conductive strips have the same polarity; within a 90° arc range below the core delivery station 3-4 to the core placement station 3-5, the polarities of the two parallel concentric conductive strips are interchanged; within a 90° arc range below the core placement station 3-5 to the wire insertion station 3-2, no conductive strip is laid. The low-voltage torque motor 3-15 is connected to a carbon brush 3-22 below. The carbon brush 3-22 receives electricity from the surface of the conductive slip ring 3-21 to drive the low-voltage torque motor 3-15 of the hinge rotation power mechanism. The low-voltage torque motor 3-15 is controlled to rotate forward, reverse, and stop by contacting the positive pole 3-211 and negative pole 3-212 on the corresponding track of the conductive slip ring 3-21, and by not contacting any conductor. This controls the closing and opening actions of the hinge mold.

[0049] The following is a detailed description of the structure of the four stations: the wire feeding station 3-2, the wire bending station 3-3, the die core ejection station 3-4, and the die core placement station 3-5. 1. Middle wire insertion station 3-2; The middle wire feeding station 3-2 is located at the output end of the middle wire feeding device. At this position, the middle wire 1-1 is squeezed into the die core 2-8 by the pressure roller 2-2. To reduce the distance between the pressure roller 2-2 and the die core 2-8, the edge of the fixed hinge die is designed as a straight edge.

[0050] At this workstation, a wire cutter holder 3-17 is installed on the upper part of the wire bending device. A wire cutter 2-5 is connected to the wire cutter holder 3-17, and the wire cutter 2-5 is connected to a cutting power mechanism, which includes a wire cutter drive cylinder 2-6. After the wire feeding action into the die core 2-8 is completed according to the design requirements, the wire cutter drive cylinder 2-6 pushes the wire cutter 2-5 downward to cut off all the wires that have entered the die core 2-8. Then, the wire cutter 2-5 is lifted, leaving a set of wires of the same length inside the die core.

[0051] The upper part of the wire bending device is provided with a core pressing strip 3-16, which is connected to a core pressing power mechanism. The core pressing power mechanism includes a core pressing cylinder 2-7. The core pressing strip 3-16 is connected to the frame corresponding to the upper part of the wire entry station, and is correspondingly set on the upper part of the groove between the fixed mold 3-25 and the rotating mold 3-23 at this station. In order to reduce the displacement of the wire 1-1 in the core 2-8 during the bending process, the core 2-8 needs to have a bending groove 2-83 for bending the wire in the hinge mold rotation area. The core pressing cylinder 2-7 drives the core pressing strip 3-16, which can just fit into the gap of the bending groove 2-83 between the two cores, to press the two cores 2-8. This is to prevent gaps between the two cores 2-8 and the hinge mold, and to prevent the wire 1-1 from getting stuck or protruding at the gap where the two cores 2-8 are joined. After the middle wire is in place, the core pressing cylinder 2-7 drives the core pressing strip 3-16 to lift.

[0052] II. Medium wire bending station 3-3; After the middle wire is inserted into the mold, the turntable drive motor 3-20 is started, and the turntable 3-1 rotates. The power carbon brush 3-22 of the low-voltage torque motor 3-15 installed on the hinge mold rotation shaft at each position contacts the conductive slip ring 3-21 of the double rail. The motor rotates in the forward direction (in the reverse direction to distinguish the hinge mold opening) between the middle wire insertion station 3-2 and the core delivery station 3-4. The hinge mold closes. After the four-position turntable 3-1 rotates 90°, it moves to the hinge mold at the middle wire bending station 3-3. According to the bending strength of the middle wire, a suitable torque motor is selected so that the included angle between the two hinge pieces needs to be rotated from 180° to within 90°.

[0053] Due to the bending strength requirements of the middle wire, it is difficult to hinge the two mold cores 2-8 to a zero-degree angle using only the low-voltage torque motor 3-15. Therefore, an auxiliary bending mechanism is provided at the middle wire bending station. This auxiliary bending mechanism includes a mold closing auxiliary power mechanism, which includes a mold closing auxiliary cylinder 3-18. This cylinder provides a large arm torque for mold closing, ensuring that the hinge mold at this position is fully closed, and the included angle between the two mold cores 2-8 is zero degrees. The mold closing auxiliary power mechanism is mounted on the corresponding frame above the middle wire bending station and outputs downward pressure.

[0054] III. Mold core delivery station 3-4: like Figure 2 , Figure 3 , Figure 4 , Figure 6 , Figure 7As shown, after mold closing, the central wires inside the two mold cores 2-8 are bent into a "U" shape. At the mold core delivery station 3-4, the mold core 2-8 is delivered to the mold core box 3-10 through the mold core delivery mechanism. The mold core delivery mechanism includes a mold core push rod 3-6. When the turntable 3-1 is confined by space, the mold core push rod 3-6 is rotatably mounted on the corresponding base at the bottom of the turntable and can rotate around its support shaft. The lower end of the mold core push rod 3-6 is connected to the mold core push power mechanism, which includes a mold core push cylinder 3-7. A U-shaped groove is provided at the upper end of the mold core push rod 3-6.

[0055] like Figure 6 , Figure 7 As shown, a core push rod 3-19 is provided at the bottom of the hinge mold fixing mold 3-25. After the hinge mold is closed, the core push rod 3-19 can push out the core 2-8. Specifically, part of the core push rod 3-19 is located at the lower part of the fixing mold 3-25 and can slide along the sliding rod at the bottom of the fixing mold; the other part of the core push rod 3-19 is located in the cavity of the fixing mold 3-25 and is used to push the core 2-8. The core 2-8 is provided with a core push step 2-85, which makes it easy for the core push rod 3-19 to be locked in place, thereby pushing the core 2-8. In addition, a protrusion 3-191 is provided at the lower part of the mold core push rod 3-19. When the turntable 3-1 rotates to the mold core delivery station 3-5, the protrusion 3-191 just fits into the groove of the mold core push rod 3-6, thereby connecting the mold core push rod 3-6 and the mold core push rod 3-19. At this time, the mold core push cylinder 3-7 drives the mold core push rod 3-6 to rotate around the support shaft, and the upper end of the mold core push rod 3-6 drives the mold core push rod 3-19 to move, thereby pushing out the mold core 2-8 and sending it to the mold core box 3-10. The mold core push cylinder 3-7 reverses its action to reset the mold core push rod 3-19 so that the mold core placed at the mold core placement station does not conflict with the mold core push rod 3-19.

[0056] The mold core box 3-10 is open at one end. The mold core 2-8 pushed out by the mold core push rod 3-19 enters the mold core box 3-10 under the guidance of the wedge-shaped mold core lip 2-84. Multiple layers of mold cores 2-8 can be installed in the mold core box 3-10, so that multiple mold cores 2-8 can be transferred to the subsequent welding station at the same time. The number of mold cores installed matches the number of vertical slots of the positioning mold. The middle part of the turntable 3-1 has a concave structure. The bottom of the concave surface is fixed to the turntable drive motor 3-20. The internal space of the concave surface is set to accommodate the mold core box 3-10, which facilitates the placement of the mold core 2-8 into the mold core box 3-10 by a flat pushing method. Figure 12 The diagram shows the structure after the die core 2-8, after being bent, is placed into the die core box 3-10 and then rotated 90°.

[0057] The turntable 3-1 has a recessed structure in the middle, which also houses a core-filling basket 3-12 and a basket support column 3-13. The core-filling basket 3-12 has a slotted bottom to facilitate the subsequent transfer of the mold core box 3-10. To reduce the torque on the lifting platform 5-1 during the process of squeezing the mold core 2-8 into the mold core box 3-10, a support column 3-13 is provided on the back of the core-filling basket 3-12. The support column rotates with the turntable, and after each 90-degree rotation, one side of the support column supports the squeezing force of the mold core entering the box. After the mold core box 3-10 is inserted into the core-filling basket 3-12, the mold core box clamping cylinder 3-11 ensures that the mold core box is locked inside the core-filling basket 3-12, preventing shaking and displacement. To reduce the friction between the concave surface of the core-loading basket 3-12 entering and exiting the four-station turntable and the basket support column 3-13, flow strips 3-14 composed of rows of bullseye balls are provided at the four positions from the center wire insertion station 3-2 to the core insertion station 3-5. The above describes the transfer structure of the core box 3-10.

[0058] IV. Place the mold core at station 3-5: After the mold core 2-8 is pushed out of the previous station, the empty hinge mold rotates to this position and the hinge mold reverses and opens to 180°. Driven by the mold core rotation lifting and translation platform 3-27, the mold core suction cup 3-26 picks up a piece of mold core 2-8 fitted on the mold core positioning rod 3-29 from the mold core chamber 3-28 and puts it into the mold cavity of the rotating mold 3-23 or the fixed mold 3-25, so that the folding groove 2-83 of the mold core is placed in the center facing upward. Then, driven by the mold core rotation lifting and translation platform 3-27, the mold core suction cup 3-26 picks up another piece of mold core 2-8 from the mold core chamber 3-28 and puts it into another fixed mold 3-25 or the rotating mold 3-23, so that the folding groove 2-83 of the mold core is placed in the center facing upward. The suction cup inserts a pair of symmetrically placed mold cores 2-8 in this position twice and continues to repeat the above bending process.

[0059] like Figure 13 As shown, the raw material of the medium-length wire is bent into a U-shape in the medium-length wire bending device 3. The bent U-shaped medium-length wire is placed in two mold cores 2-8, with only one end of the U-shape bent outside the mold core 2-8. Multiple sets of mold cores 2-8 are located in the same mold core box 3-10. The number of mold cores installed matches the number of vertical slots in the positioning mold. The medium-length wire transfer device 8 is responsible for pulling out a horizontal row of U-shaped medium-length wires from the mold cores 2-8 and accurately placing them in the vertical slots of the positioning mold 7-6. Specifically, the mold core circulation system 4 and the mold core box circulation system 5 will... Figure 13The mold core box, as shown, carrying multiple rows of U-shaped center wires 1-1, is fed into the wire removal basket 7-5. The U-shaped opening inside the mold core box 3-10 faces away from the center wire transfer device 8. The wire removal basket 7-5 is equipped with a longitudinal moving platform 7-2, a transverse moving platform 7-3, and a positioning cylinder 7-4 to adjust the longitudinal and transverse positions of the mold core box 3-10, coordinating with the wire hook 8-10 of the center wire transfer device 8 to facilitate the pulling out of the U-shaped center wires. The mold core turnover system 4 and the mold core box circulation system 5 can use robotic arms, conveyor belts, manual labor, or other conveying methods to transport the mold core box to the center wire transfer station.

[0060] like Figure 11 , Figure 12 As shown, the positioning mold 7-6 is mounted on the annular guide rail via annular guide rail sliders 7-7. The annular guide rail is connected to an annular guide rail power mechanism, which uses an annular guide rail drive motor 7-9. The annular guide rail drive motor 7-9 drives the annular guide rail to rotate, and the annular guide rail drives the annular guide rail sliders 7-7 and the positioning mold 7-6 on them to circulate between the wire transfer station and the welding station. The annular guide rail drive motor 7-9 moves intermittently. During the welding process of the welder 7-1, the annular guide rail drive motor 7-9 stops. After welding is completed, the annular guide rail drive motor 7-9 drives the synchronous belt, which drives all the annular guide rail sliders 7-7 on the annular guide rail to move one position together. The above-mentioned annular guide rail and annular guide rail slider 7-7 transmission structure is a conventional structure in the prior art and will not be described in detail here.

[0061] The annular guide rail slider 7-7, which is installed on the vertical annular guide rail, has the same center distance in the horizontal direction as the center distance of the lower horizontal wire. During the process of the annular guide rail slider 7-7 turning into linear motion, its upward movement, together with the positioning mold 7-6, moves the upper and lower horizontal wires forward, thereby achieving the positioning of the lower horizontal wire.

[0062] The positioning mold 7-6 is a mold fixed on the annular guide rail slider 7-7. Its upper surface has multiple rows of horizontal grooves and multiple columns of vertical grooves. The middle wire transfer device 8 feeds the U-shaped middle wire into the vertical groove of the positioning mold 7-6. The horizontal groove of the positioning mold 7-6 is used to position the lower horizontal wire.

[0063] like Figure 12 , Figure 14 , Figure 15 , Figure 16As shown, the wire transfer device 8 includes multiple rows of wire hooks 8-10. The front end of each wire hook 8-10 is a pointed upper wire hook 8-101, and a stepped groove 8-102 is provided behind the pointed structure. The pointed tip cuts into the gap formed by the wire hook groove 2-82 left in the mold core box for the wire 1-1. Without damaging the wire 1-1, the upper wire hook 8-101 can be pushed open, and the U-shaped bottom of the wire 1-1 can be slid into the wire hook groove 8-102 of the wire hook 8-10. The wire hook 8-10 is connected to a wire hook sliding plate 8-13. The square wave structure of the wire hook sliding plate 8-13 is directly opposite the upper wire hook 8-101. The width of the raised square wave is the same as that of the upper wire hook, so that this part can enter the space of the wire hook groove 2-82 reserved in the mold core 2-8 in the mold core box 3-10. The hook-beak sliding plate 8-13 is connected to the hook-beak sliding drive mechanism, which uses a hook-beak sliding plate drive motor 8-12. The hook-beak sliding plate drive motor 8-12 drives the hook-beak sliding plate 8-13 to move linearly, thereby driving the hook-beak 8-10 to move linearly. The number of hook-beaks 8-10 installed on the hook-beak sliding plate 8-13 is the same as the number of U-shaped middle wires 1-1 that need to be pulled.

[0064] To prevent the middle wire 1-1 from sliding out of the groove of the hook beak 8-10 during the pulling process, the hook beak 8-10 is provided with a hook beak pivot 8-103, and a hook beak compression spring 8-14 is connected to the hook beak pivot 8-103. The hook beak compression spring 8-14 is used to keep the upper hook beak 8-101 and the hook beak sliding plate 8-13 slightly pressed together. By adjusting the elasticity of the compression spring to a suitable strength, the middle wire 1-1 can easily squeeze open the upper hook beak 8-101 and enter its hook groove 8-102. Under the action of the hook beak compression spring 8-14, the upper hook beak 8-101 is pressed back and closed with the hook beak sliding plate 8-13, which can prevent the hook beak 8-10 from opening automatically and prevent the middle wire 1-1 from sliding out of the hook groove 8-102.

[0065] The medium-fiber transfer device 8 includes a comb guide positioning device located at the medium-fiber transfer station. The comb guide positioning device includes multiple rows of parallel medium-fiber comb guides 8-8. The medium-fiber comb guides 8-8 are parallel to the horizontal grooves of the positioning mold 7-6. The lower part of the medium-fiber comb guides 8-8 is provided with multiple n-shaped opening groove structures, which are multi-hole bridge structures. The n-shaped opening groove structures are arranged one-to-one with the vertical grooves of the positioning mold 7-6.

[0066] The two ends of the comb guide 8-8 are respectively connected to the comb guide support device. The comb guide support device includes a housing, on which a comb guide positioning groove 8-5 is opened. A comb guide compression spring 8-6 is connected in the comb guide positioning groove 8-5. The comb guide compression spring 8-6 is connected to the comb guide plunger 8-7. The comb guide plunger 8-7 presses down on the comb guide 8-8, thereby providing elastic pressure to the comb guide 8-8. The lower surface of the comb guide 8-8 is close to the upper surface of the positioning mold 7-6 under the action of the comb guide compression spring 8-6. Each "n"-shaped bridge hole of the comb guide 8-8 aligns with the "u"-shaped opening on the positioning mold 7-6, forming an "O"-shaped through hole in the middle.

[0067] The housing has an upper horizontal wire through hole, which is used to guide the upper horizontal wire. The housing is higher than the positioning mold to avoid affecting the cyclic operation of the positioning mold.

[0068] The hook-beak sliding plate 8-13 connects to the sloping mid-wire guide wedge 8-11, the top of which can be inserted below the mid-wire guide 8-8. The mid-wire guide 8-8 has "T"-shaped end faces at both ends, and miniature bearings are provided below the "T"-shaped end faces to facilitate the passage of the mid-wire guide wedge 8-11 through the lower part of the mid-wire guide 8-8.

[0069] The above structure is designed to facilitate the smooth completion of the wire hooking action. Specifically, as the wire hooking beak sliding plate 8-13 moves from one side of the positioning mold 7-6 to the side near the mold core box, it drives the middle wire comb guide wedge 8-11 to move together. The top of the middle wire comb guide wedge 8-11 is inserted below the middle wire comb guide 8-8. This pushes the miniature bearings at both ends of the middle wire comb guide 8-8 to roll on the inclined surface of the middle wire comb guide wedge 8-11. Constrained by the frame of the middle wire comb guide positioning groove, the middle wire comb guide 8-8 can only be lifted upwards, and the middle wire comb guide compression spring 8-6 is compressed by the middle wire comb guide plunger 8-7. This process separates the lower plane of the middle wire comb guide 8-8 from the upper plane of the positioning mold 7-6, allowing it to pass through the hook beak sliding plate 8-13 and the hook beak 8-10. The hook beak 8-10 continues to move forward until it contacts the U-shaped middle wire 1-1 bend in the mold core 2-8 inside the fixed mold core box 3-10. The middle wire 1-1 easily squeezes open the gap between the relatively moving hook upper beak 8-101 and the hook beak sliding plate 8-13, allowing the middle wire 1-1 to enter the hook groove 8-102. Under the action of the hook beak compression spring 8-14, the hook upper beak 8-101 is pressed back and closes with the hook beak sliding plate 8-13, completing the hook beak hooking process.

[0070] After the hooking beak slide plate 8-13, carrying the hooking beak 8-10, hooks the U-shaped middle wire, the hooking beak slide plate drive motor 8-12 reverses its movement, pulling a row of U-shaped middle wires 1-1 out of the mold core. During the extraction process, the middle wire comb guide wedge 8-11 retracts along with the hooking beak slide plate 8-13, and the middle wire comb guide 8-8 is pressed back to be close to the positioning mold 7-6 by the middle wire comb guide compression spring 8-6. Each "n"-shaped bridge hole of the middle wire comb guide 8-8 aligns with the "u"-shaped opening vertical groove on the positioning mold 7-6, and an additional middle wire is added to each "O"-shaped hole in the middle, thus successfully completing the hooking action.

[0071] To ensure that the middle wire 1-1 moves to the welding station along with the upper and lower horizontal wires, a middle wire positioning block 8-4 is provided to press the middle wire 1-1 before welding is completed, so that the middle wire 1-1 also loses its freedom in the vertical direction on the upper surface of the positioning mold. Specifically, multiple rows of middle wire positioning and fixing adsorption blocks 8-9 are fixedly connected to the positioning mold 7-6. The middle wire positioning and fixing adsorption blocks 8-9 are parallel to the horizontal groove of the positioning mold 7-6, and multiple blocks are provided. The middle wire positioning and fixing adsorption blocks 8-9 are electromagnets used to connect and fix the middle wire positioning blocks 8-4. The middle wire positioning blocks 8-4 are thin strips with multiple n-shaped grooves that just avoid the cross section of the middle wire. They are positioning blocks made of thin-walled magnetic material. Their structure allows each middle wire to be accurately positioned and close to the lower horizontal wire, and embedded in the space left by the lower horizontal wire, the welding pressing device, and the positioning and pushing middle wire comb guide 8-8.

[0072] The center wire positioning block 8-4 is correspondingly equipped with a center wire positioning and removal adsorption block 8-3 for its rotation. The center wire positioning and removal adsorption block 8-3 is fixedly connected to the center wire positioning block longitudinal moving platform 8-1. The center wire positioning block longitudinal moving platform 8-1 is connected to the center wire positioning block transverse moving platform 8-2. Both the center wire positioning block longitudinal moving platform 8-1 and the center wire positioning block transverse moving platform 8-2 adopt conventional linear slide rail moving mechanisms. After the upper and lower horizontal wires are welded, the center wire positioning block 8-4 will lose its function. After it leaves the welding position along with the center wire, the center wire positioning block longitudinal moving platform 8-1 raises the center wire positioning and removal adsorption block 8-3 to prevent it from bumping into the welding device when the center wire positioning and removal adsorption block 8-3 is brought directly above the center wire positioning block at the welding position by the center wire positioning block transverse moving platform 8-2. The longitudinal moving platform 8-1 of the middle wire positioning block, carrying the middle wire positioning and transfer adsorption block 8-3, falls down. The electromagnetic attraction of the middle wire positioning and fixing adsorption block 8-9 in the positioning mold is turned off, and the electromagnetic attraction of the middle wire positioning and transfer adsorption block 8-3 is turned on. The middle wire positioning block 8-4 moves again to the top of the middle wire transfer station along with the longitudinal moving platform 8-1 and the transverse moving platform 8-2 of the middle wire positioning block, in order to position the middle wire of the next set of positioning molds.

[0073] The medium-fiber transfer station is equipped with a fixed crossbar 8-15, which is slightly higher than the horizontal plate near the tip of the hook beak 8-105. When the hook beak sliding plate 8-13 moves to insert the tip of the hook beak 8-105 below the crossbar 8-15, the hook beak sliding plate drive motor 8-12 stops, and the medium-fiber positioning block longitudinal moving platform 8-1 moves down to place the medium-fiber positioning block 8-4 onto the corresponding medium-fiber positioning and fixing suction block 8-9, fixing the medium-fiber pulled out by the hook beak 8-10. The hook beak sliding plate drive motor 8-12 restarts. Continue pulling the middle wire 1-1, the horizontal bar 8-15 presses down the hook beak and presses up the inclined surface 8-104, pressing the hook beak spring 8-14, so that the hook beak rotates around its own hook beak pivot 8-103, the front end of the hook beak upper beak 8-101 lifts up, the middle wire 1-1 cannot move up with the hook upper beak 8-101 under the fixation of the middle wire positioning block 8-4, forcing the U-shaped middle wire 1-1 to disengage from the hook beak front end hook groove 8-102, leaving the entire row of U-shaped middle wires 1-1 in the vertical groove of the set horizontal wire positioning mold 7-6.

[0074] like Figure 12 As shown, the welding device 7 is located at the welding station. The welding device includes a welder 7-1, which welds the upper and lower horizontal wires. Generally, the upper and lower horizontal wires are made of similar materials and are weldable, facilitating welding. This allows the middle wire 1-1 to be welded and fixed between the upper and lower materials, resulting in a finished wire mesh. Figure 12 As shown. The welder 7-1 is selected from existing welding equipment such as laser welder, ultrasonic welder, or hot plate welder.

[0075] The welding station is equipped with a welding clamping device, which includes a welding clamping power mechanism and a welding clamping frame connected thereto. The welding clamping power mechanism drives the welding clamping frame to move up and down. The welding clamping power mechanism is a welding clamping cylinder 7-8. The welding clamping device is used to clamp the three layers of material: the lower horizontal wire 10-1, the middle wire 1-1, and the upper horizontal wire 9-1, so that these three are aligned longitudinally and laterally within the positioning mold. In particular, the upper and lower horizontal wires are accurately aligned on the welding surface. After clamping, the welding machine 7-1 welds them together, and the three layers of material are combined into one in the welding area. After the welding clamping device is released, the material can continue to move forward with the annular guide rail slider.

[0076] Finished wire mesh such as Figure 17 As shown, a U-shaped longitudinal center wire is sandwiched between two layers of horizontal wires. The lower layer of horizontal wires has a groove, and the center wire fits perfectly into the groove, allowing the upper and lower layers of horizontal wires to adhere together. The upper and lower layers of horizontal wires are made of the same or similar materials, facilitating welding together. The upper and lower layers of horizontal wires can be made of different materials, and the center wire can also be made of different materials; therefore, it is called a multi-material wire mesh.

[0077] The typical application of finished wire mesh is in the composite grid structure of batteries, where the U-shaped central wire is made of lead wire and the horizontal wires are made of plastic.

[0078] The middle wire transfer device 8, welding device 7, finished coil 6, upper horizontal wire coil 9, and lower horizontal wire coil 10 are all supported by the frame 7-10.

[0079] In this invention, the operation of each power component is basically controlled by the control system, thus achieving automation.

[0080] The frame in this invention refers to each fixed frame used to support the various components, which can be set in different positions and at different heights as needed.

Claims

1. A multi-material wire mesh production system, characterized in that, It includes a middle wire bending device (3), a positioning mold (7-6) and a welding device (7). The middle wire bending device processes the middle wire into a U-shape, and then the lower horizontal wire, the U-shaped middle wire and the upper horizontal wire are sequentially placed in the positioning mold (7-6). The welding device (7) includes a welder (7-1) used to weld the upper horizontal wire and the lower horizontal wire together. The positioning mold (7-6) is installed on the annular guide rail, which is connected to the annular guide rail power mechanism. The annular guide rail drives the positioning mold (7-6) to circulate between the wire transfer station and the welding station. The upper surface of the positioning mold (7-6) has multiple rows of horizontal grooves and multiple columns of vertical grooves. The wire transfer device (8) feeds the U-shaped wire into the vertical groove of the positioning mold (7-6). The horizontal groove of the positioning mold (7-6) is used to position the upper and lower horizontal wires.

2. The multi-material wire mesh production system according to claim 1, characterized in that, The middle wire bending device (3) includes a hinge mold, which includes a fixed mold (3-25), a hinge mold rotating shaft (3-24), and a rotating mold (3-23). ​​The hinge mold rotating shaft (3-24) is fixedly connected to the rotating mold (3-23), and the hinge mold rotating shaft (3-24) is connected to the hinge rotation power mechanism. The fixed mold (3-25) and the rotating mold (3-23) are respectively provided with cavities to accommodate a mold core (2-8). The mold core (2-8) is a thin plate structure, and the thin plate of the mold core (2-8) is evenly provided with multiple through holes (2-81). The middle wire (1-1) is inserted into the through holes (2-81) of the mold core.

3. The multi-material wire mesh production system according to claim 2, characterized in that, The wire bending device (3) includes a turntable (3-1), which is connected to a turntable power unit on a base (3-8). Four sets of hinge molds are evenly distributed in a ring around the center of the turntable (3-1). A fixed mold (3-25) is fixed to the turntable (3-1) platform. The wire bending device (3) has four stations arranged around the turntable (3-1): wire insertion, wire bending, mold core delivery, and mold core placement. At the wire insertion station (3-2), the wire is inserted into the mold core. The hinge rotation power mechanism acts on the hinge mold shaft (3-24), rotating the angle between the rotating mold (3-23) and the fixed mold (3-25) to less than [value missing]. At the 90°, an auxiliary bending mechanism is provided at the middle wire bending station (3-3). The auxiliary bending mechanism includes a mold closing auxiliary power mechanism, which provides additional torque to the rotating mold (3-23), so that the included angle between the rotating mold (3-23) and the fixed mold (3-25) is zero. The mold core delivery station (3-4) is provided with a mold core delivery mechanism, which is used to push the mold core (2-8) after mold closing out of the hinge mold. The hinge rotation power mechanism rotates in the opposite direction to the hinge mold shaft (3-24), so that the included angle between the rotating mold (3-23) and the fixed mold (3-25) is 180°. When it is time to put the mold core in the station (3-5), a pair of new empty mold cores (2-8) are put in.

4. The multi-material wire mesh production system according to claim 3, characterized in that, A conductive slip ring (3-21) is provided at the lower part of the turntable (3-1). The conductive slip ring (3-21) is supported by its corresponding support frame (3-9). The conductive slip ring (3-21) includes two parallel positive and negative concentric conductive strips. A carbon brush (3-22) is connected below the hinge rotation power mechanism and passes through the turntable (3-1) table. The carbon brush (3-22) receives electricity from the surface of the conductive slip ring (3-21). Within a 180° arc range below the three stations of the conductive slip ring (3-21) from the wire insertion station (3-2) and the wire bending station (3-3) to the core delivery station (3-4), the two conductive strips have the same polarity. Within a 90° arc range below the core delivery station (3-4) to the core placement station (3-5), the polarities of the two parallel concentric conductive strips are interchanged.

5. The multi-material wire mesh production system according to claim 3, characterized in that, The wire feeding station (3-2) is equipped with a wire cutting mechanism, which includes a wire cutter (2-5). A wire cutter holder (3-17) is provided on the upper part of the turntable. The wire cutter (2-5) is connected to the wire cutter holder (3-17), and the wire cutter (2-5) is connected to the cutting power mechanism.

6. The multi-material wire mesh production system according to claim 3, characterized in that, The bottom of the hinge mold fixing mold is provided with a mold core push rod (3-19). By moving the mold core push rod (3-19), the mold core (2-8) can be pushed into the mold core box (3-10) after the hinge mold is closed. The mold core box (3-10) is open at one end and is used to receive the ejected mold core.

7. The multi-material wire mesh production system according to claim 3, characterized in that, The input end of the wire bending device (3) is provided with a wire arranger (2). The wire arranger (2) includes a wire laying mold (2-1). The wire laying mold (2-1) has multiple through-mouths. The wire (1-1) passes through the through-mouths. The output end of the wire laying mold (2-1) is provided with a pair of pressure roller wire laying wheels (2-2). The cylindrical surface of the pressure roller wire laying wheel (2-2) has uniformly arranged annular grooves. The grooves are semi-circular grooves. The two semi-circular grooves of the pair of pressure roller wire laying wheels (2-2) are aligned to form a complete circle. The two pressure roller wire laying wheels (2-2) move synchronously towards each other. The pressure roller wire laying wheels (2-2) send the wire into the mold core (2-8) of the wire entering mold station (3-2).

8. The multi-material wire mesh production system according to claim 1, characterized in that, The medium-silk transfer station is equipped with a medium-silk transfer device (8), which includes multiple rows of hooking beaks (8-10). The front end of each hooking beak (8-10) is a pointed structure, and a stepped groove is provided behind the pointed structure. Each hooking beak (8-10) is connected to a hooking beak sliding plate (8-13), which is connected to a hooking beak sliding drive mechanism. Each hooking beak (8-10) is connected to a hooking beak rotating shaft (8-103), and a hooking beak compression spring (8-14) is connected to the hooking beak rotating shaft (8-103). The medium-silk transfer station is equipped with a fixed crossbar (8-15). The horizontal plate is slightly higher than the tip of the hook beak (8-105). When the hook beak sliding plate (8-13) moves, the tip of the hook beak (8-105) is inserted below the horizontal bar (8-15). The horizontal bar (8-15) presses down on the hook beak and presses up the inclined surface (8-104), which in turn presses the hook beak compression spring (8-14), causing the upper hook beak (8-101) to lift up. Under the constraint of the middle wire positioning block (8-4), the middle wire cannot move up with the upper hook beak (8-101), forcing the U-shaped middle wire (1-1) to leave the hook groove (8-103) and keeping the whole row of U-shaped middle wires (1-1) in the vertical groove of the set positioning mold (7-6).

9. The multi-material wire mesh production system according to claim 8, characterized in that, The medium-fiber transfer device includes a comb guide positioning device located at the medium-fiber transfer station. The comb guide positioning device includes multiple rows of parallel medium-fiber comb guides (8-8). The medium-fiber comb guides (8-8) are parallel to the horizontal grooves of the positioning mold (7-6). The lower part of each medium-fiber comb guide (8-8) has multiple n-shaped opening slots, each corresponding to a vertical slot in the positioning mold (7-6). Both ends of each medium-fiber comb guide (8-8) are connected to a medium-fiber comb guide support device. The medium-fiber comb guide support device includes a housing. A positioning groove (8-5) for the middle comb guide is provided. A middle comb guide pressure spring (8-6) is connected inside the positioning groove (8-5). The middle comb guide pressure spring (8-6) is connected to the middle comb guide plunger (8-7). The middle comb guide plunger (8-7) presses down on the middle comb guide (8-8). The hook beak sliding plate (8-13) is provided with a sloping middle comb guide wedge (8-11) at one end near the hook upper beak (8-101). The top of the middle comb guide wedge (8-11) can be inserted below the middle comb guide (8-8).

10. The multi-material wire mesh production system according to claim 1, characterized in that, Multiple rows of center wire positioning and fixing adsorption blocks (8-9) are fixedly connected to the positioning mold (7-6). The center wire positioning and fixing adsorption blocks (8-9) are parallel to the transverse groove of the positioning mold (7-6) and multiple blocks are provided. The center wire positioning and fixing adsorption blocks (8-9) are used to connect the center wire positioning blocks (8-4). The center wire positioning blocks (8-4) are thin strips with multiple n-shaped grooves that just avoid the cross section of the center wire, arranged horizontally. The center wire positioning blocks (8-4) can be adsorbed and connected by the center wire positioning and fixing adsorption blocks (8-9). The center wire positioning blocks (8-4) are correspondingly provided with center wire positioning and removal adsorption blocks (8-3) for their rotation. The center wire positioning and removal adsorption blocks (8-3) are fixedly connected to the center wire positioning block longitudinal moving platform (8-1). The center wire positioning block longitudinal moving platform (8-1) is connected to the center wire positioning block transverse moving platform (8-2).

11. The multi-material wire mesh production system according to claim 1, characterized in that, The welding apparatus includes a welder (7-1) for welding the upper and lower horizontal wires together, wherein the welder (7-1) includes one of an ultrasonic welder, a laser welder, or a hot plate welder.

12. A method for producing multi-material wire mesh, applicable to the multi-material wire mesh production system described in any one of claims 1-11, characterized in that, The wires are arranged from bottom to top as lower horizontal wires, longitudinal middle wires, and upper horizontal wires. The longitudinal middle wire is sandwiched between the two horizontal wires. Then, the upper and lower horizontal wires are welded together, and the longitudinal middle wire is designed as a U-shaped structure.

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