An automatic metal wire mesh welding machine

Abstract

This utility model relates to the field of spot welding machine technology, and in particular to an automatic spot welding machine for metal wire mesh. It includes a frame, a movable plate, a weft wire feeding assembly, and a warp wire feeding assembly. A support is mounted on the frame, and a rotating roller is mounted on the support. An annular electrode plate is fitted onto the rotating roller, and a drive assembly A is mounted on the support to drive the rotating roller to rotate. The movable plate is mounted on the support and is driven to rise and fall by the drive assembly B. A linear electrode plate is mounted at the bottom of the movable plate, and several electrodes are spaced apart on the linear electrode plate. The weft wire feeding mechanism is mounted on the support and linked to the movable plate. The warp wire feeding assembly is mounted on the support and linked to the rotating roller. This utility model, by linking the weft wire feeding assembly with the movable plate, drives the guide roller to rotate by a fixed angle each time the movable plate rises and resets, thereby allowing the weft wires to be lowered one by one using the receiving groove. Furthermore, the warp wire feeding assembly is linked to the rotating roller, reducing energy consumption while improving the stability of the coordination between the various components of the device.

Description

Technical Field

[0001] This utility model relates to the field of spot welding machine technology, and in particular to an automatic spot welding machine for metal wire mesh. Background Technology

[0002] When processing metal wire mesh, the welding equipment usually used is a spot welding machine. Existing spot welding machines are either manually operated point by point or operated by multi-station electrodes synchronously. Taking the multi-station electrode synchronous spot welding machine as an example, its advantage over the traditional manual point by point welding is that it is faster and more efficient.

[0003] However, in actual processing, existing multi-electrode spot welding machines require independent power structures to drive the feeding of the weft wire and the lifting of the electrodes. Since the coordination between the two needs to be manually adjusted, the technical skills of the operators are required to be high, and the energy consumption of the two independent power structures is higher. At the same time, the electrodes of existing spot welding machines are mostly bolted, and the disassembly and assembly of the electrodes is time-consuming and laborious when processing metal wire mesh with different aperture sizes. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing an automatic metal wire mesh welding machine.

[0005] The technical solution of this utility model is as follows: an automatic metal wire mesh welding machine, including a frame, a support on the frame, a rotating roller connected to the support, a plurality of positioning grooves spaced apart on the arc surface of the rotating roller, an annular electrode plate coaxial with the rotating roller, and a drive component A for driving the rotating roller to rotate on the support.

[0006] A movable plate is mounted on a support and slidably connected to it along its height. A linear electrode plate is mounted on the bottom of the movable plate, and several detachable electrodes are spaced apart on the linear electrode plate. A drive assembly B is mounted on the support to drive the movable plate to rise or fall.

[0007] The weft wire feeding assembly is mounted on the support and linked with the movable plate. Each time the movable plate slides upward, the weft wire feeding mechanism feeds a metal wire into the positioning groove below the electrode.

[0008] And a warp wire feeding assembly, which is mounted on a support and linked to a rotating roller, to feed metal wires to a fixed length into a positioning groove through the warp wire feeding assembly, and the metal wires fed by the weft wire feeding mechanism fall onto the warp wires.

[0009] Preferably, the positioning groove includes a weft positioning groove and a warp positioning groove. Several sets of protrusions are arranged in a ring array around the axis of the roller on the arc surface. The weft positioning groove and the warp positioning groove are composed of several adjacent protrusions.

[0010] Preferably, an electronic control host is mounted on the frame, and an electric slip ring that rotates coaxially with the annular electrode plate is fitted on the annular electrode plate. The annular electrode plate is electrically connected to the electronic control host through the electric slip ring.

[0011] Preferably, an interlocking gap is provided between the linear electrode plate and the movable plate, and several positioning blocks are evenly arranged on the linear electrode plate. Each electrode is provided with a card holder, a card slot, and a sliding groove. A vertically downward spring rod A is provided on the upper wall of the sliding groove. A lever plate is slidably arranged in the sliding groove along its height direction. The lever plate is connected to the movable end of the spring rod A. A wedge-shaped block is provided at the end of the lever plate away from the spring rod A. The end of the wedge-shaped block away from the lever plate is inserted into the card slot. The card holder is locked onto the linear electrode plate through the card slot, and the positioning blocks and the wedge-shaped block limit the movement of the card holder on the linear electrode plate.

[0012] Preferably, the weft wire feeding assembly includes a guide hopper, a guide roller, a rotating shaft, a ratchet, ratchet teeth, and a telescopic rod. The guide hopper is connected to the support frame. A discharge pipe is provided at the lower end of the guide hopper. A cylindrical groove communicating with the internal channel of the discharge pipe is provided inside the discharge pipe. The guide roller is set in the cylindrical groove and is rotatably connected to it on the same axis. The rotating shaft is rotatably connected to the guide roller on the same axis. Four receiving grooves are arranged in a ring array around the axis of the guide roller on its arc surface. A circular groove coaxial with the guide roller is provided on the end face of the guide roller. The ratchet is coaxially connected to the rotating shaft and is located in the circular groove. A spring rod B is provided on the end face of the guide roller. The movable end of the spring rod B is connected to the ratchet teeth, and the ratchet teeth engage with the ratchet teeth in one direction. One end of the telescopic rod is connected to the rotating shaft and the other end is rotatably connected to the movable plate. The movable plate only drives the guide roller to rotate 90 degrees when it rises and resets. An inclined plate facing the rotating roller is provided on the bottom of the discharge pipe on the side away from the movable plate. A blocking plate is provided on the side of the electrode away from the inclined plate on the support frame.

[0013] Preferably, the wire feeding assembly includes a support roller, a timing belt, and a pressure roller. The support roller is rotatably mounted on a support frame and is connected to the rotating roller via the timing belt. The support roller is provided with a plurality of limit grooves that correspond one-to-one with each positioning groove at even intervals. The support frame is provided with a slide that slides along its height direction. The pressure roller is rotatably connected to the slide. The pressure roller is provided with a plurality of pressure rings that correspond one-to-one with each limit groove at even intervals. The support frame is provided with a hydraulic cylinder B that drives the slide to rise or fall.

[0014] Preferably, a guide platform with multiple guide grooves is provided on the support between the rotating roller and the support roller, and each guide groove corresponds one-to-one with the limiting groove on the corresponding side.

[0015] Compared with the prior art, the present invention has the following beneficial technical effects:

[0016] By setting several protrusions on the rotating roller, weft wire positioning grooves and warp wire positioning grooves are formed on the rotating roller using multiple adjacent protrusions. When the warp and weft wires are in the warp wire positioning grooves or weft wire positioning grooves with different spacing, metal wire meshes with different apertures can be processed. By setting a cooperative structure of clamps, wedge-shaped clamps and linear electrode plates, it is easy to disassemble and assemble electrodes, thus facilitating the rapid addition or removal of electrodes according to the aperture size of the wire mesh. By setting a cooperative structure of telescopic rods, rotating shafts, ratchet, ratchet teeth and guide rollers, when the movable plate descends and drives the electrode to press down for welding, the guide roller does not rotate. When the movable plate rises to reset, the guide roller rotates by a standard angle, thus realizing the linkage between the welding structure and the weft wire feeding mechanism, reducing energy consumption structure. The two are directly mechanically linked, and the technical requirements for the workers are not high. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram showing the connection structure between the rotating roller, the electrode, and the weft yarn feeding mechanism.

[0019] Figure 3 This is a schematic diagram of the connection structure between the linear electrode plate and the electrode.

[0020] Figure 4 This is a schematic diagram of the connection structure between the guide roller and the telescopic rod.

[0021] Figure 5 This is a schematic diagram of the connection structure between the support roller and the pressure roller.

[0022] Reference numerals: 1. Frame; 2. Support; 3. Rotary roller; 4. Motor A; 5. Annular electrode plate; 6. Electric slip ring; 7. Protrusion; 8. Movable plate; 9. Linear electrode plate; 91. Positioning block; 10. Card holder; 1001. Card slot; 11. Wedge-shaped card block; 12. Spring rod A; 13. Pulley; 14. Electrode; 15. Hydraulic cylinder A; 16. Guide hopper; 17. Guide roller; 171. Receiving groove; 172. Circular groove; 18. Rotating shaft; 19. Ratchet; 20. Spring rod B; 21. Ratchet tooth; 22. Telescopic rod; 23. Inclined plate; 24. Blocking plate; 25. Support roller; 251. Limiting groove; 26. Synchronous belt; 27. Slide; 28. Pressure roller; 281. Pressure ring; 29. ​​Hydraulic cylinder B; 30. Guide table. Detailed Implementation

[0023] Example 1

[0024] like Figures 1-5As shown, this utility model proposes an automatic metal wire mesh welding machine, including a frame 1, a movable plate 8, a weft wire feeding assembly, and a warp wire feeding assembly. A support 2 is mounted on the frame 1, and a rotating roller 3 is rotatably connected to the support 2. Several positioning grooves are spaced apart on the arc surface of the rotating roller 3, including weft wire positioning grooves and warp wire positioning grooves. Several sets of protrusions 7 are arranged in a circular array around the axis of the rotating roller 3, and the weft wire positioning grooves and warp wire positioning grooves are formed by several adjacent protrusions 7. A coaxial annular electrode plate 5 is fitted onto the rotating roller 3. A drive assembly A for driving the rotating roller 3 is mounted on the support 2. The drive assembly A includes, but is not limited to, a motor 4. The motor 4 is connected to the support 2, and its output end is connected to the mounting shaft of the rotating roller 3 via a coupling. An electrical control unit is mounted on the frame 1, and a coaxially rotating electric slip ring 6 is fitted onto the annular electrode plate 5. The annular electrode plate 5 is electrically connected to the electrical control unit via the electric slip ring 6. A movable plate 8 is mounted on a support 2 and slidably connected to it along its height. A linear electrode plate 9 is mounted on the bottom of the movable plate 8, and several detachable electrodes 14 are spaced apart on the linear electrode plate 9. A drive assembly B for driving the movable plate 8 to rise or fall is mounted on the support 2. The drive assembly B includes, but is not limited to, a hydraulic cylinder A15. The body of the hydraulic cylinder A15 is connected to the support 2, and the output end of the hydraulic cylinder A15 is connected to the movable plate 8. An interlocking gap is provided between the linear electrode plate 9 and the movable plate 8, and several positioning blocks 91 are evenly arranged on the linear electrode plate 9. Each electrode 14 is provided with a card holder 10, and the card holder 10 is provided with a card slot 1001 and a sliding groove. A vertically downward spring rod A12 is provided on the upper wall of the sliding groove. A lever 13 is slidably arranged in the sliding groove along its height direction. The lever 13 is connected to the movable end of the spring rod A12. A wedge-shaped card block 11 is provided at the end of the lever 13 away from the spring rod A12. The end of the wedge-shaped card block 11 away from the lever 13 is inserted into the card slot 1001. The card holder 10 is locked on the linear electrode plate 9 through the card slot 1001, and the positioning blocks 91 and the wedge-shaped card block 11 limit the movement of the card holder 10 on the linear electrode plate 9. The weft feeding mechanism is mounted on the support 2 and linked with the movable plate 8. The weft feeding assembly includes a guide hopper 16, a guide roller 17, a rotating shaft 18, a ratchet 19, a ratchet tooth 21, and a telescopic rod 22. The guide hopper 16 is connected to the support 2. A discharge pipe is provided at the lower end of the guide hopper 16. A cylindrical groove communicating with its internal channel is provided in the discharge pipe. The guide roller 17 is located in the cylindrical groove and is rotatably connected to it on the same axis. The rotating shaft 18 is rotatably connected to the guide roller 17 on the same axis. Four receiving grooves 171 are arranged in a ring array around the axis on the arc surface of the guide roller 17. A circular groove 172 is provided on the end face of the guide roller 17 on the same axis. The ratchet 19 is coaxially connected to the rotating shaft 18 and is located in the circular groove 172. A spring rod B20 is provided on the end face of the guide roller 17. The movable end of the spring rod B20 is connected to the ratchet tooth 21. The ratchet tooth 21 and the ratchet tooth 19 engage in one-way meshing.One end of the telescopic rod 22 is connected to the rotating shaft 18 and the other end is rotatably connected to the movable plate 8. The movable plate 8 only drives the guide roller 17 to rotate 90 degrees when it rises and resets. The bottom of the discharge pipe is provided with an inclined plate 23 facing the rotating roller 3 on the side away from the movable plate 8. A blocking plate 24 is provided on the side of the electrode 14 away from the inclined plate 23 on the bracket 2. Each time the movable plate 8 slides upward, the weft wire feeding mechanism feeds a metal wire into the positioning groove below the electrode 14. The warp wire feeding assembly is mounted on the support 2 and linked with the rotating roller 3. The warp wire feeding assembly includes a support roller 25, a synchronous belt 26, and a pressure roller 28. The support roller 25 is rotatably mounted on the support 2. A pulley A is coaxially mounted on the roller shaft of the support roller 25. A pulley B is coaxially mounted on the roller shaft of the rotating roller 3. The pulley A and pulley B are connected by a synchronous belt 26. A slide 27 is mounted on the support 2 and slides along its height direction. The pressure roller 28 is rotatably connected to the slide 27. A hydraulic cylinder B29 is mounted on the support 2 to drive the slide 27 to rise or fall, so as to feed metal wires to the positioning groove at a fixed length through the warp wire feeding assembly. The metal wires fed by the weft wire feeding mechanism fall on the warp wires.

[0025] In this embodiment, the warp wires for weaving the metal mesh are first guided through the respective limiting grooves 251. The hydraulic cylinder B29 is activated to press down the slide 27, causing the pressure ring 281 on the pressure roller 28 to engage with the corresponding limiting groove 251 and press the warp wires tightly. Then, the motor 4 is activated, driving the rotating roller 3 to rotate intermittently. Each time the rotating roller 3 rotates by a fixed angle, the warp wire in its positioning groove moves forward by a standard distance. When the front end of the warp wire moves a standard distance to the right of the electrode 14, the hydraulic cylinder A15 pulls up the movable plate 8 to reset. At this time, the telescopic rod 22 swings and drives the rotating shaft 18 to rotate. The rotating shaft 18, through the ratchet 19 and ratchet 21, drives the guide roller 17 to rotate 90 degrees, thereby releasing the weft wires one by one through the receiving groove 171. The weft wires slide down the inclined plate 23 and, under the blocking action of the blocking plate 24, remain positioned below the electrode 14. Inside the groove, the hydraulic cylinder A15 then presses down the movable plate 8 and welds the weft wire and warp wire together through the cooperation of the electrode 14 and the annular electrode plate 5. Then the electrode 14 slides up and resets. During the upward sliding of the electrode 14, the rotating roller 3 first rotates a standard angle and moves the wire mesh forward through the cooperation of the protrusion 7 and the wire mesh hole. In this way, the automatic welding of the metal wire mesh can be completed step by step. When the electrode 14 is damaged, or when it is necessary to set different intervals of wire mesh, it is necessary to increase or decrease the number of electrodes 14. When increasing the electrode 14, the slot 1001 of the card holder 10 is aligned with the straight electrode plate 9 and the card holder 10 is locked. At this time, the wedge-shaped card block 11 first automatically retracts and then automatically pops out to realize the movement limit of the card holder 10. When decreasing the electrode 14, the push plate 13 drives the wedge-shaped card block 11 to slide up. The wedge-shaped card block 11 retracts into the slide groove and the card holder 10 can be removed.

[0026] Example 2

[0027] like Figure 1 and Figure 5 As shown, the automatic metal wire mesh welding machine proposed in this utility model, compared with the first embodiment, has a plurality of limiting grooves 251 that are evenly spaced on the support roller 25 and correspond one-to-one with each positioning groove. A plurality of pressure rings 281 that are evenly spaced on the pressure roller 28 and correspond one-to-one with each limiting groove 251 are arranged on the support 2. A guide platform 30 with multiple guide grooves is provided on the bracket 2 between the rotating roller 3 and the support roller 25. Each guide groove corresponds one-to-one with the limiting groove 251 on the corresponding side.

[0028] In this embodiment, the limiting groove 251 is used to limit the lateral movement of the diameter wire, while the pressure ring 281 is inserted into the limiting groove 251 to limit the longitudinal movement of the diameter wire. The two work together to straighten the diameter wire. By setting the guide platform 30, the end of the diameter wire is guided and limited when it is first guided into the positioning groove on the rotating roller 3.

[0029] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. An automatic wire mesh butt welding machine characterized by, include: A frame (1) is provided on the frame (1), a support (2) is provided on the support (2), a rotating roller (3) is provided on the support (2) and rotated thereon, a number of positioning grooves are provided at intervals on the arc surface of the rotating roller (3), an annular electrode plate (5) coaxial with it is sleeved on the rotating roller (3), and a drive component A for driving the rotating roller (3) to rotate is provided on the support (2). Movable plate (8), the movable plate (8) is set on the bracket (2) and slidably connected to it along its height direction, a linear electrode plate (9) is set at the bottom of the movable plate (8), a number of detachable electrodes (14) are set on the linear electrode plate (9) at intervals, and a drive component B for driving the movable plate (8) to rise or fall is set on the bracket (2). The weft wire feeding assembly is set on the bracket (2) and linked with the movable plate (8). Each time the movable plate (8) slides upward, the weft wire feeding mechanism feeds a metal wire into the positioning groove below the electrode (14). And a warp wire feeding assembly, which is set on the bracket (2) and linked with the rotating roller (3) to feed metal wires to the positioning groove at a fixed length through the warp wire feeding assembly, and the metal wires fed by the weft wire feeding mechanism fall on the warp wires.

2. A wire mesh automatic butt welder according to claim 1, characterized in that, The positioning groove includes the weft positioning groove and the warp positioning groove. Several sets of protrusions (7) are arranged in a ring array around the axis on the arc surface of the roller (3). The weft positioning groove and the warp positioning groove are composed of several adjacent protrusions (7).

3. A wire mesh automatic butt welder according to claim 1, characterized in that, An electric control host is installed on the frame (1), and an electric slip ring (6) that rotates coaxially with the annular electrode plate (5) is fitted on the annular electrode plate (5). The annular electrode plate (5) is electrically connected to the electric control host through the electric slip ring (6).

4. A wire mesh automatic butt welder according to claim 1, characterized in that, An interlocking gap is provided between the linear electrode plate (9) and the movable plate (8), and several positioning blocks (91) are evenly spaced on the linear electrode plate (9). Each electrode (14) is provided with a card holder (10), and a card slot (1001) is provided on the card holder (10). A sliding groove is provided on the card holder (10), and a vertically downward spring rod A (12) is provided on the upper wall of the sliding groove. A lever (13) is slidably installed in the sliding groove along its height direction. 3) Connected to the movable end of the spring rod A (12), the end of the dial plate (13) away from the spring rod A (12) is provided with a wedge-shaped block (11), the end of the wedge-shaped block (11) away from the dial plate (13) is inserted into the slot (1001), the card holder (10) is locked on the linear electrode plate (9) through the slot (1001), and the card holder (10) is moved and limited on the linear electrode plate (9) by the positioning block (91) and the wedge-shaped block (11).

5. A wire mesh automatic butt welder according to claim 1, characterized in that, The weft feeding assembly includes a guide hopper (16), a guide roller (17), a rotating shaft (18), a ratchet (19), a ratchet tooth (21), and a telescopic rod (22). The guide hopper (16) is connected to the bracket (2). A discharge pipe is provided at the lower end of the guide hopper (16). A cylindrical groove communicating with its internal channel is provided inside the discharge pipe. The guide roller (17) is set in the cylindrical groove and is coaxially rotatably connected to it. The rotating shaft (18) is coaxially rotatably connected to the guide roller (17). Four receiving grooves (171) are arranged in a ring array around the axis on the arc surface of the guide roller (17). A circular groove (172) coaxially with it is provided on the end face of the guide roller (17). The ratchet tooth (19) is connected to the rotating shaft (22). 18) Coaxial connection, ratchet (19) is located in the circular groove (172), spring rod B (20) is provided on the end face of the guide roller (17), the movable end of the spring rod B (20) is connected to the ratchet (21), the ratchet (21) and the ratchet (19) mesh in one direction; one end of the telescopic rod (22) is connected to the rotating shaft (18) and the other end is rotatably connected to the movable plate (8), the movable plate (8) only drives the guide roller (17) to rotate 90 degrees when it rises and resets, the bottom of the discharge pipe is provided with an inclined plate (23) facing the rotating roller (3) on the side away from the movable plate (8), and a blocking plate (24) is provided on the side of the electrode (14) away from the inclined plate (23) on the bracket (2).

6. A wire mesh automatic butt welder according to claim 1, characterized in that, The wire feeding assembly includes a support roller (25), a timing belt (26), and a pressure roller (28). The support roller (25) is rotatably mounted on the bracket (2). The support roller (25) is connected to the rotating roller (3) via the timing belt (26). The support roller (25) is evenly spaced with several limiting grooves (251) that correspond one-to-one with each positioning groove. The bracket (2) is provided with a slide (27) that slides along its height direction. The pressure roller (28) is rotatably connected to the slide (27). The pressure roller (28) is evenly spaced with several pressure rings (281) that correspond one-to-one with each limiting groove (251). The bracket (2) is provided with a hydraulic cylinder B (29) that drives the slide (27) to rise or fall.

7. A wire mesh automatic butt welder according to claim 6, characterized in that A guide platform (30) with multiple guide grooves is provided on the support (2) between the rotating roller (3) and the support roller (25), and each guide groove corresponds to the limiting groove (251) on the corresponding side.

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