High frequency resistance strip or wire forming machine
By introducing a high-frequency heating coil and bending mechanism into a strip or wire bending forming machine, the problem of fracture of metal materials with low plasticity during bending is solved, and plasticity is improved and processing stability is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 佛山市赵氏精密机电有限公司
- Filing Date
- 2025-08-06
- Publication Date
- 2026-07-14
AI Technical Summary
Existing strip or wire bending forming machines cannot effectively process metal materials with low plasticity, and are prone to cracking or breaking during the bending process.
A high-frequency heating coil is installed at the outlet end of the straightening feeding mechanism to improve the plasticity of the metal strip or wire through high-frequency heating and to perform local heating before bending. Combined with the design of the bending mechanism and the cutting mechanism, this avoids breakage during bending.
It improves the plasticity of metal strips or wires, avoids cracks or fractures during bending, ensures the hardness of the cutting mechanism's blade, and increases the usable area of the worktable.
Smart Images

Figure CN224487495U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a strip or wire bending forming machine, and in particular a high-frequency resistance strip or wire forming machine. Background Technology
[0002] Current strip or wire bending forming machines mainly include a straightening and feeding mechanism, a worktable, a cutting mechanism, and a bending mechanism. The straightening and feeding mechanism is used to straighten and convey the metal strip or wire. The cutting and bending mechanisms are sequentially located outside the outlet end of the straightening and feeding mechanism and on the worktable. Its working principle is as follows: the metal strip or wire passes through the outlet end of the straightening and feeding mechanism and then through the cutting mechanism. During the output process, the bending mechanism coordinates with the metal strip or wire to bend the plane into the desired shape (such as an S-shape). After each workpiece is processed, the cutting mechanism cuts off the metal strip or wire (cutting off the tail of the workpiece), and then the machine continues to output and bend the next workpiece.
[0003] However, the above structure can generally only be used to process metal strips or wires that have good plasticity under normal conditions. It is not suitable for materials that have low plasticity at room temperature and are prone to cracking or breaking when bent. Utility Model Content
[0004] The purpose of this invention is to provide a high-frequency resistance strip or wire forming machine with a reasonable structure that improves the plasticity of the strip or wire by heating it before bending, thus preventing bending and breakage.
[0005] The purpose of this utility model is achieved as follows:
[0006] A high-frequency resistance strip or wire forming machine includes a frame and a straightening and feeding mechanism, a worktable, a bending mechanism, and a cutting mechanism mounted on the frame. The straightening and feeding mechanism is used to straighten and convey metal strips or wires. A heating coil, the bending mechanism, and the cutting mechanism are sequentially arranged outside the outlet end of the straightening and feeding mechanism. The bending mechanism and the cutting mechanism are mounted on the worktable. A heating channel is formed inside the heating coil, and the direction of the heating channel is opposite to the discharge direction of the straightening and feeding mechanism.
[0007] The objective of this utility model can also be achieved by the following technical measures:
[0008] As a more specific embodiment, the heating coil is electrically connected to a high-frequency heater, which provides high-frequency alternating current to the heating coil; the high-frequency heater is positioned above the straightening and feeding mechanism near the outlet end.
[0009] As a further embodiment, a guide wheel row is provided on the worktable between the heating coil and the bending mechanism. The guide wheel row includes multiple sets of wheels arranged in a straight line. Each set of wheels includes two guide wheels on the left and right sides. The metal strip or metal wire passes between the two guide wheels on the left and right sides.
[0010] As a further embodiment, the bending mechanism includes a central fixed head, a turntable, a turntable rotation drive device, and a turntable lifting drive device. The worktable has a first opening corresponding to the turntable. The turntable is disposed in the first opening and is connected to the turntable rotation drive device and the turntable lifting drive device. The turntable rotation drive device and the turntable lifting drive device are both located below the worktable and are used to drive the turntable to rotate and lift, respectively. The turntable is annular and has a bend lever on its top surface. The central fixed head is disposed at the center of the turntable and slides relative to the turntable in the circumferential and axial directions. The central fixed head is fixed relative to the frame. The top surface of the central fixed head has directional rollers on the left and right sides corresponding to its center. The centers of the two directional rollers and the center line of the central fixed head are located on the same plane. The metal strip or metal wire passes between the two directional rollers.
[0011] As a further embodiment, the frame is provided with a first fixed plate corresponding to the turntable lifting drive device, and the front side of the first fixed plate is provided with a vertically oriented first linear guide rail; the turntable lifting drive device includes a first longitudinal slide plate, a lifting drive motor and a first eccentric wheel, the first longitudinal slide plate is slidably mounted on the first linear guide rail, and the first longitudinal slide plate is provided with a first elongated transmission hole; the lifting drive motor is located on the rear side of the first fixed plate and is connected to the first eccentric wheel for transmission, and the first eccentric wheel is inserted into the first elongated transmission hole.
[0012] As a further embodiment, the lower end of the central fixed head is connected to a guide rod, and a fixed seat is provided on the first fixed plate, with the guide rod vertically mounted on the fixed seat; the turntable rotation drive device includes a gearbox, a first side plate, and a first rotation drive motor. The gearbox is fixedly connected to the first longitudinal sliding plate through the first side plate. The gearbox contains a sliding sleeve, an input gear, and an output gear. The sliding sleeve rotatably engages with the gearbox and is fitted over the guide rod. The output gear is fixedly mounted over the sliding sleeve and is driven by the input gear. The input gear is driven by the first rotation drive motor, which is located outside the bottom of the gearbox; the upper end of the sliding sleeve extends out of the top surface of the gearbox and is fixedly connected to the turntable.
[0013] As a further embodiment, the cutting mechanism includes a fixed knife holder, a movable knife holder, a knife holder lifting drive device, and a cutting drive device. The worktable has a second opening corresponding to the fixed knife holder and the movable knife holder. The upper ends of the fixed knife holder and the movable knife holder are respectively provided with a fixed cutter head and a movable cutter, which extend into the second opening. The fixed knife holder is slidably mounted on the frame, and the movable knife holder is rotatably engaged with the fixed knife holder. The knife holder lifting drive device is mounted on the frame and is used to drive the fixed knife holder to move up and down. The cutting drive device is mounted on the fixed knife holder and is used to drive the movable knife holder to swing and cut the material.
[0014] As a further embodiment, the fixed cutter head is provided with a feed groove through which the metal strip or metal wire passes. The rear side of the movable cutter is close to the front side of the fixed cutter head. When the movable cutter swings with the movable cutter holder, it passes through the front end of the feed groove to achieve shearing.
[0015] As a further embodiment, the frame is provided with a second fixed plate corresponding to the tool holder lifting drive device, and a vertically oriented second linear guide rail is provided on the rear side of the second fixed plate; the tool holder lifting drive device includes a second longitudinal slide plate and a lifting drive cylinder, the second longitudinal slide plate is slidably mounted on the second linear guide rail, the cylinder body of the lifting drive cylinder is connected to the second fixed plate through a seat body, and the outer end of the piston rod of the lifting drive cylinder is connected to the second longitudinal slide plate; the upper part of the movable tool holder is rotatably engaged with the fixed tool holder through a rotating shaft, and the cutting drive device includes a cutting drive motor and a second eccentric wheel, the cutting drive motor is mounted on the fixed tool holder and is connected to the second eccentric wheel for transmission, the lower part of the movable tool holder is provided with a second elongated transmission hole, and the second eccentric wheel is inserted into the second elongated transmission hole for engagement.
[0016] As a further embodiment, the fixed blade holder includes two interconnected front and rear plates, the movable blade holder is disposed between the two plates, and the rotating shaft is rotatably disposed between the two plates; wherein the front plate is fixedly connected to the second longitudinal sliding plate via a second side plate, and the cutting drive motor is disposed on the front plate.
[0017] As a further solution, a protective mesh cover is provided outside the heating coil, and the protective mesh cover has a clearance opening corresponding to the heating channel.
[0018] The beneficial effects of this utility model are as follows:
[0019] (1) The present invention provides a high-frequency heating coil outside the outlet end of the straightening feeding mechanism, which can heat the passing metal strip or metal wire to improve its plasticity, facilitate subsequent bending processing, and avoid cracks or breakage during bending.
[0020] (2) The cutting mechanism of this utility model is located after the bending mechanism and can be raised and lowered. When it is lowered, the usable area of the worktable can be increased. Moreover, the metal strip or metal wire that is locally heated to a high temperature does not pass through the cutting mechanism, thus avoiding the annealing treatment of the blade body and ensuring the hardness of the blade body in the cutting mechanism. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention (bent metal wire).
[0022] Figure 2 for Figure 1 A partially enlarged structural diagram.
[0023] Figure 3 for Figure 2 A schematic diagram of the structure after the guide wheel for bent metal strip and wire was changed to a guide wheel for strip.
[0024] Figure 4 This is a schematic diagram of the bending mechanism and cutting mechanism on the workbench of this utility model in one state.
[0025] Figure 5 for Figure 4 Another schematic diagram of the working state structure.
[0026] Figure 6 This is a schematic diagram of the bending mechanism in this utility model.
[0027] Figure 7 for Figure 6 A schematic diagram of its decomposed structure.
[0028] Figure 8 This is a cross-sectional structural diagram of the bending mechanism in this utility model.
[0029] Figure 9 This is a schematic diagram of the material cutting mechanism in this utility model.
[0030] Figure 10 for Figure 8 A schematic diagram of its decomposed structure. Detailed Implementation
[0031] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0032] See Figures 1-10As shown, a high-frequency resistance strip or wire forming machine includes a frame 1 and a straightening and feeding mechanism 2, a worktable 4, a bending mechanism, and a cutting mechanism 7 mounted on the frame 1. The straightening and feeding mechanism 2 is used to straighten and convey the metal strip 20 or metal wire 10. A heating coil 3, the bending mechanism, and the cutting mechanism 7 are sequentially arranged outside the outlet end 21 of the straightening and feeding mechanism 2. The bending mechanism and the cutting mechanism 7 are mounted on the worktable 4. A heating channel is formed inside the heating coil 3, and the direction of the heating channel is opposite to the discharge direction of the straightening and feeding mechanism 2. The materials of the aforementioned metal strip 20 and metal wire 10 mainly refer to nickel-chromium alloy and iron-chromium-aluminum alloy.
[0033] The heating coil 3 is electrically connected to the high-frequency heater 31, which provides high-frequency alternating current to the heating coil 3. The high-frequency heater 31 is positioned above the straightening and feeding mechanism 2 near the outlet end 21. The high-frequency heater 31 is existing technology, and its structure will not be described in detail here.
[0034] The workbench 4 is also provided with a guide wheel row between the heating coil 3 and the bending mechanism. The guide wheel row includes multiple sets of wheels arranged in a straight line. Each set of wheels includes two guide wheels 41 on the left and right. The metal strip 20 or metal wire 10 passes between the two guide wheels 41 on the left and right.
[0035] The bending mechanism includes a central fixed head 5, a turntable 6, a turntable rotation drive device, and a turntable lifting drive device. The worktable 4 has a first opening corresponding to the turntable 6. The turntable 6 is set in the first opening and is connected to the turntable rotation drive device and the turntable lifting drive device. The turntable rotation drive device and the turntable lifting drive device are both located below the worktable 4 and are used to drive the turntable 6 to rotate and lift, respectively. The turntable 6 is annular and has a bend lever 61 on its top surface. The central fixed head 5 is set at the center of the turntable 6 and slides relative to the turntable 6 in the circumferential and axial directions. The central fixed head 5 is fixed relative to the frame 1. The top surface of the central fixed head 5 has directional rollers 52 on the left and right sides corresponding to its center. The center of the two directional rollers 52 and the center line of the central fixed head 5 are on the same plane. The metal strip 20 or metal wire 10 passes between the two directional rollers 52.
[0036] The aforementioned straightening and feeding mechanism 2 is existing technology, and its structure will not be described in detail here. The straightening wheel shape of the straightening and feeding mechanism 2 varies depending on the type of material being conveyed. Similarly, the guide wheel 41 and the directional roller 52 also use different wheel shapes for different materials. For example, when conveying metal wire 10, the relevant wheel shapes are as follows: Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown; when conveying metal strip 20, the shape of the relevant wheel is as follows. Figure 3 As shown.
[0037] The frame 1 is provided with a first fixed plate 11 corresponding to the turntable lifting drive device. The front side of the first fixed plate 11 is provided with a vertically oriented first linear guide rail 13. The turntable lifting drive device includes a first longitudinal slide plate 65, a lifting drive motor 66, and a first eccentric wheel 67. The first longitudinal slide plate 65 is slidably mounted on the first linear guide rail 13. The first longitudinal slide plate 65 is provided with a first elongated transmission hole 651. The lifting drive motor 66 is located on the rear side of the first fixed plate 11 and is connected to the first eccentric wheel 67. The first eccentric wheel 67 is inserted into the first elongated transmission hole 651.
[0038] The lower end of the central fixed head 5 is connected to a guide rod 53. A fixed seat 51 is provided on the first fixed plate 11, and the guide rod 53 is vertically arranged on the fixed seat 51. The turntable rotation drive device includes a gearbox 62, a first side plate 64, and a first rotation drive motor 63. The gearbox 62 is fixedly connected to the first longitudinal slide plate 65 through the first side plate 64. The gearbox 62 is provided with a sliding sleeve 68, an input gear 621, and an output gear 622. The sliding sleeve 68 is rotatably engaged with the gearbox 62 and is sleeved on the outside of the guide rod 53. The output gear 622 is fixedly arranged on the outside of the sliding sleeve 68 and is drivenly connected to the input gear 621. The input gear 621 is drivenly connected to the first rotation drive motor 63. The first rotation drive motor 63 is arranged outside the bottom of the gearbox 62. The upper end of the sliding sleeve 68 extends out of the top surface of the gearbox 62 and is fixedly connected to the turntable 6.
[0039] The cutting mechanism 7 includes a fixed blade holder 75, a movable blade holder 76, a blade holder lifting drive device, and a cutting drive device. The worktable 4 has a second opening corresponding to the fixed blade holder 75 and the movable blade holder 76. The upper ends of the fixed blade holder 75 and the movable blade holder 76 are respectively provided with a fixed blade head 73 and a movable cutter 74, which extend into the second opening. The fixed blade holder 75 is slidably mounted on the frame 1, and the movable blade holder 76 is rotatably engaged with the fixed blade holder 75. The blade holder lifting drive device is mounted on the frame 1 and is used to drive the fixed blade holder 75 to move up and down. The cutting drive device is mounted on the fixed blade holder 75 and is used to drive the movable blade holder 76 to swing and cut the material. The fixed blade head 73 has a feed groove through which the metal strip 20 or metal wire 10 passes. The rear side of the movable cutter 74 is close to the front side of the fixed blade head 73. When the movable cutter 74 swings with the movable blade holder 76, it passes through the front end of the feed groove to achieve shearing.
[0040] The frame 1 is provided with a second fixed plate 12 corresponding to the tool holder lifting drive device. The rear side of the second fixed plate 12 is provided with a vertically oriented second linear guide rail 15. The tool holder lifting drive device includes a second longitudinal slide plate 77 and a lifting drive cylinder 72. The second longitudinal slide plate 77 is slidably mounted on the second linear guide rail 15. The cylinder body of the lifting drive cylinder 72 is connected to the second fixed plate 12 through a seat body. The outer end of the piston rod of the lifting drive cylinder 72 is connected to the second longitudinal slide plate 77. The upper part of the movable tool holder 76 is rotatably engaged with the fixed tool holder 75 through a rotating shaft 78. The cutting drive device includes a cutting drive motor 71 and a second eccentric wheel 711. The cutting drive motor 71 is mounted on the fixed tool holder 75 and is connected to the second eccentric wheel 711 in a transmission connection. The lower part of the movable tool holder 76 is provided with a second elongated transmission hole 761. The second eccentric wheel 711 is inserted into the second elongated transmission hole 761 in a transmission connection.
[0041] The fixed blade holder 75 includes two interconnected front and rear plates, the movable blade holder 76 is disposed between the front and rear plates, and the rotating shaft 78 is rotatably disposed between the two plates; wherein the plate located on the front side is fixedly connected to the second longitudinal slide plate 77 through the second side plate 79, and the cutting drive motor 71 is disposed on the front plate.
[0042] The heating coil 3 is also provided with a protective mesh cover 32, and the protective mesh cover 32 is provided with a clearance opening 321 corresponding to the heating channel.
[0043] Its working principle is as follows: In the initial state, the turntable 6 and its bending lever 61 descend below the surface of the worktable 4, and the cutting mechanism also descends below the surface of the worktable 4. The metal wire 10 or metal strip 20 is output from the outlet end 21 of the straightening feeding mechanism 2 and passes sequentially between the heating coil 3, the guide wheel row, and the two directional rollers 52 of the center fixing head 5. When the metal wire 10 or metal strip 20 needs to be bent further, the feeding is briefly stopped until the area requiring bending is heated, then feeding continues until the area requiring bending exceeds the front end of the directional rollers 52. Then, feeding stops, the turntable 6 is controlled to rise and rotate, and the bending lever 61 bends the metal wire 10 or metal strip 20. After bending is completed, the turntable 6 descends and repeats the above actions. When the bending direction is different, the turntable 6 rotates to a suitable position after descending so that it can reach the appropriate position and perform the bending action after subsequent rise. After a workpiece is processed, feeding continues, and the position to be cut is conveyed to the feed groove above the fixed cutter head 73 of the cutting mechanism 7. The cutting mechanism 7 is raised, and the position to be cut of the metal wire 10 or metal strip 20 falls into the feed groove. The cutting drive motor 71 controls the movable cutter head 76 to swing, completing the cutting and the processed workpiece is removed.
[0044] Combination Figure 4 and Figure 5As shown, arrow H indicates the lifting direction; arrow A indicates the rotation direction of turntable 6; and arrow B indicates the swing direction of movable tool holder 76.
[0045] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.
Claims
1. A high-frequency resistance strip or wire forming machine, comprising a frame (1) and a straightening and feeding mechanism (2), a worktable (4), a bending mechanism, and a cutting mechanism (7) disposed on the frame (1), wherein the straightening and feeding mechanism (2) is used to straighten and convey the metal strip (20) or metal wire (10), characterized in that: The straightening feeding mechanism (2) is provided with a heating coil (3), a bending mechanism and a cutting mechanism (7) in sequence outside the outlet end (21). The bending mechanism and the cutting mechanism (7) are set on the workbench (4). A heating channel is formed inside the heating coil (3). The direction of the heating channel is opposite to the discharge direction of the straightening feeding mechanism (2).
2. The high-frequency resistance strip or wire forming machine according to claim 1, characterized in that: The heating coil (3) is electrically connected to the high-frequency heater (31), which provides high-frequency AC power to the heating coil (3). The high-frequency heater (31) is positioned above the straightening and feeding mechanism (2) near the outlet end (21).
3. The high-frequency resistance strip or wire forming machine according to claim 1, characterized in that: The workbench (4) is also provided with a guide wheel row between the heating coil (3) and the bending mechanism. The guide wheel row includes multiple sets of wheels arranged in a straight line. Each set of wheels includes two guide wheels (41) on the left and right. The metal strip (20) or metal wire (10) passes between the two guide wheels (41).
4. The high-frequency resistance strip or wire forming machine according to claim 1, characterized in that: The bending mechanism includes a center fixed head (5), a turntable (6), a turntable rotation drive device, and a turntable lifting drive device. The worktable (4) has a first opening corresponding to the turntable (6). The turntable (6) is set in the first opening and is connected to the turntable rotation drive device and the turntable lifting drive device. The turntable rotation drive device and the turntable lifting drive device are both located below the worktable (4) and are used to drive the turntable (6) to rotate and lift. The turntable (6) is ring-shaped and has a bend lever (61) on its top surface. The center fixed head (5) is set in the center of the turntable (6) and slides relative to the turntable (6) in the circumferential and axial directions. The center fixed head (5) is fixed relative to the frame (1). The top surface of the center fixed head (5) is provided with directional rollers (52) on the left and right sides corresponding to its center. The center of the two directional rollers (52) and the center line of the center fixed head (5) are on the same plane. The metal strip (20) or metal wire (10) passes between the two directional rollers (52).
5. The high-frequency resistance strip or wire forming machine according to claim 4, characterized in that: The frame (1) is provided with a first fixed plate (11) corresponding to the turntable lifting drive device. The front side of the first fixed plate (11) is provided with a vertically pointing first linear guide rail (13). The turntable lifting drive device includes a first longitudinal slide plate (65), a lifting drive motor (66) and a first eccentric wheel (67). The first longitudinal slide plate (65) is slidably mounted on the first linear guide rail (13). The first longitudinal slide plate (65) is provided with a first elongated transmission hole (651). The lifting drive motor (66) is located on the rear side of the first fixed plate (11) and is connected to the first eccentric wheel (67) for transmission. The first eccentric wheel (67) is inserted into the first elongated transmission hole (651).
6. The high-frequency resistance strip or wire forming machine according to claim 5, characterized in that: The lower end of the central fixing head (5) is connected to a guide rod (53), and a fixing seat (51) is provided on the first fixing plate (11). The guide rod (53) is vertically arranged on the fixing seat (51). The turntable rotation drive device includes a gearbox (62), a first side plate (64), and a first rotation drive motor (63). The gearbox (62) is fixedly connected to the first longitudinal sliding plate (65) through the first side plate (64). The gearbox (62) is provided with a sliding sleeve (68) and an input gear (621). The output gear (622) and the sliding sleeve (68) are rotatably engaged with the gearbox (62) and sleeved outside the guide rod (53). The output gear (622) is fixedly installed outside the sliding sleeve (68) and is connected to the input gear (621) for transmission. The input gear (621) is connected to the first rotary drive motor (63) for transmission. The first rotary drive motor (63) is installed outside the bottom of the gearbox (62). The upper end of the sliding sleeve (68) extends out of the top surface of the gearbox (62) and is fixedly connected to the turntable (6).
7. The high-frequency resistance strip or wire forming machine according to claim 1, characterized in that: The cutting mechanism (7) includes a fixed knife holder (75), a movable knife holder (76), a knife holder lifting drive device, and a cutting drive device. The worktable (4) is provided with a second opening corresponding to the fixed knife holder (75) and the movable knife holder (76). The upper ends of the fixed knife holder (75) and the movable knife holder (76) are respectively provided with a fixed cutter head (73) and a movable cutter (74). The fixed cutter head (73) and the movable cutter (74) extend into the second opening. The fixed knife holder (75) is slidably mounted on the frame (1). The movable knife holder (76) is rotatably engaged with the fixed knife holder (75). The knife holder lifting drive device is mounted on the frame (1) and is used to drive the fixed knife holder (75) to move up and down. The cutting drive device is mounted on the fixed knife holder (75) and is used to drive the movable knife holder (76) to swing and cut. The fixed cutter head (73) is provided with a material passage groove through which the metal strip (20) or metal wire (10) passes. The rear side of the movable cutter (74) is close to the front side of the fixed cutter head (73). When the movable cutter (74) swings with the movable cutter holder (76), it passes through the front end of the material passage groove to achieve shearing.
8. The high-frequency resistance strip or wire forming machine according to claim 7, characterized in that: The frame (1) is provided with a second fixed plate (12) corresponding to the tool holder lifting drive device. The rear side of the second fixed plate (12) is provided with a vertically pointing second linear guide rail (15). The tool holder lifting drive device includes a second longitudinal slide plate (77) and a lifting drive cylinder (72). The second longitudinal slide plate (77) is slidably mounted on the second linear guide rail (15). The cylinder body of the lifting drive cylinder (72) is connected to the second fixed plate (12) through a seat body. The outer end of the piston rod of the lifting drive cylinder (72) is connected to the second longitudinal slide plate (15). The slide plate (77) is connected; the upper part of the movable knife holder (76) is rotatably engaged with the fixed knife holder (75) through the rotating shaft (78); the cutting drive device includes a cutting drive motor (71) and a second eccentric wheel (711); the cutting drive motor (71) is mounted on the fixed knife holder (75) and is connected to the second eccentric wheel (711); the lower part of the movable knife holder (76) is provided with a second elongated transmission hole (761); the second eccentric wheel (711) is inserted into the second elongated transmission hole (761).
9. The high-frequency resistance strip or wire forming machine according to claim 8, characterized in that: The fixed blade holder (75) includes two interconnected front and rear plates, the movable blade holder (76) is disposed between the front and rear plates, and the rotating shaft (78) is rotatably disposed between the two plates; wherein the plate located on the front side is fixedly connected to the second longitudinal sliding plate (77) through the second side plate (79), and the cutting drive motor (71) is disposed on the front plate.
10. The high-frequency resistance strip or wire forming machine according to claim 1, characterized in that: The heating coil (3) is also provided with a protective mesh cover (32), and the protective mesh cover (32) is provided with a clearance opening (321) corresponding to the heating channel.