An electrode wire straightening device with a stable internal environment

Abstract

This invention discloses an electrode wire straightening device with a stable internal environment, comprising a device body, the device body including a first housing, the first housing having openings on both sides, with first pipes disposed at the openings, and two first rotating rods symmetrically arranged inside the first housing, each with a first rolling wheel rotatably mounted on it; further comprising: a tension alarm component; the tension alarm component is disposed inside the first housing, the tension alarm component including two upright plates, the two upright plates respectively fixed to one side of the inner wall of the first housing, a support column disposed between the two upright plates, and a sliding component disposed between the support column and each upright plate. This improved straightening device allows the operator to observe the state of the electrode wire inside the first housing by observing the warning light, thereby adjusting the electrode wire in a timely manner and improving the straightening effect of the electrode wire.

Description

Technical Field

[0001] This invention relates to the field of electrode wire production equipment, specifically to an electrode wire straightening device with a stable internal environment. Background Technology

[0002] Electrode wires are used in conjunction with wire EDM machines. Modern wire EDM power supplies place stringent requirements on electrode wires. They must be able to withstand cutting currents with peak values ​​exceeding 700 amperes or average values ​​exceeding 45 amperes, and energy transfer must be highly efficient to provide the high-frequency pulsed current required to achieve high surface finishes (above 0.2 Ra). This depends on the resistance or conductivity of the electrode wire. Copper is one of the materials with the highest conductivity.

[0003] A tungsten electrode wire straightening device, disclosed in CN210907849U, includes a base with a straightening box mounted on its upper end. An inlet is connected to the lower left side of the straightening box, and an outlet is connected to the lower right side. An inlet pressing device and an outlet pressing device are mounted below the inlet and outlet on the upper surface of the base, respectively. A drive device is mounted on the upper surface of the straightening box. The device features a simple structure and clear, easy-to-understand design. In practical use, the tungsten electrode wire undergoes initial adjustment via the inlet pressing device and is then guided into the straightening box. It is guided by a guide wheel, straightened by straightening blocks, and driven by a drive wheel. The device boasts a high degree of automation. Two sets of straightening blocks enable repeated straightening, resulting in high efficiency and excellent straightening effect, making it worthy of promotion.

[0004] In this patent, the electrode wire can achieve the function of straightening. However, when the electrode wire inside the device is bent, the operator cannot see the state of the electrode wire inside the device body. Since the device is running continuously, some of the electrode wires that have been processed by the device are still bent and have not been adjusted, resulting in a decrease in the pass rate of the electrode wire.

[0005] Therefore, we propose an electrode wire straightening device with a stable internal environment to solve the problems mentioned above. Summary of the Invention

[0006] The purpose of this invention is to provide an electrode wire straightening device with a stable internal environment, in order to solve the problem mentioned in the background art that when the electrode wire inside the device is bent, the operator cannot see the state of the electrode wire inside the device body, and the device is constantly running, resulting in some electrode wires that have been processed by the device still being bent and not being adjusted, leading to a decrease in the pass rate of the electrode wire.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an electrode wire straightening device with a stable internal environment, comprising a device body, the device body including a first housing, the first housing having openings on both sides, and a first pipe disposed at each opening.

[0008] Two first rotating rods are symmetrically arranged inside the first housing, and first rolling wheels are rotatably mounted on the first rotating rods;

[0009] Also includes:

[0010] Tightness alarm component; the tightness alarm component is disposed inside the first housing, the tightness alarm component includes two upright plates, the two upright plates are respectively fixed to one side of the inner wall of the first housing, a support column is provided between the two upright plates, a sliding component is provided between the support column and each upright plate, a first rolling ring is rotatably sleeved on the outer circumferential surface of the support column, and a wire groove is opened on the first rolling ring;

[0011] The top of the support column is symmetrically provided with two connecting plates, and the top of the two connecting plates is fixed together with a first fixing plate. The top of the first fixing plate is symmetrically provided with two first iron plates.

[0012] A second fixing plate is provided on the top of the inner wall of the first housing. Two second iron plates are symmetrically arranged at the bottom of the second fixing plate. The positions of the first iron plates and the second iron plates are corresponding. A protective shell is provided on the top of the first housing. A power supply unit and a warning light are provided inside the protective shell. The power supply unit, the warning light, the two first iron plates and the two second iron plates are connected in series by wires.

[0013] By adopting the above technical solution and setting up a tension alarm component, when the electrode wire in the first housing is not taut, the support column cannot reach its highest position, causing the first iron plate and the second iron plate to separate and the warning light to go out. This allows the operator to observe the state of the electrode wire in the first housing by observing the warning light, thereby adjusting the electrode wire in time and improving the straightening effect of the electrode wire.

[0014] Preferably, the sliding assembly includes four first sliding blocks, which are symmetrically arranged on both sides of the support column;

[0015] Two first sliding grooves are provided on one side of each of the upright plates. One end of the first sliding block extends into the corresponding first sliding groove, and the first sliding block is slidably connected to the corresponding first sliding groove.

[0016] By adopting the above technical solution, a first sliding block and a first sliding groove are provided, which restrict the movement direction and range of the support column.

[0017] Preferably, a cylinder is fixed between the two upright plates;

[0018] A first through hole is provided on one side of the support column, through which the cylinder passes. The vertical cross-sectional length of the first through hole is 1.5-2.0 times the vertical cross-sectional diameter of the cylinder.

[0019] By adopting the above technical solution, when there is no electrode wire in the first housing, the support column is at the lowest position it can reach, the support column is in contact with the cylinder, and the cylinder has the function of reducing the load external force on the four first sliding blocks.

[0020] Preferably, a first sleeve is provided at the bottom of the inner wall of the first through hole, and a round tube is provided on the inner peripheral wall of the first sleeve. A plurality of first placement grooves are opened on the inner peripheral wall of the round tube along its height direction. A plurality of first fixing rods are horizontally arranged in the first placement grooves. A ball bearing is rotatably arranged on the outer peripheral surface of the first fixing rod, and the ball bearing is located at the inner hole of the round tube.

[0021] A second fixing rod is fixed to the bottom of the cylinder, one end of which extends into the inside of the cylinder, and the second fixing rod makes point contact with a plurality of the ball bearings.

[0022] By adopting the above technical solution, a first sleeve, a round tube, a ball bearing, and a second fixing rod are provided, so that the second fixing rod and the inside of the round tube form rolling friction, reducing the friction between the second fixing rod and the round tube. When no electrode wire passes over the support column or the electrode wire becomes slightly loose, the support column returns to its lowest point position immediately.

[0023] Preferably, two air drying components are provided inside the first housing;

[0024] The air drying assembly includes three support plates. The two ends of the three support plates are fixed to the two sides of the inner wall of the first housing. The bottom of the three support plates is fixed to the second housing. The electrode wire passes through the second housing.

[0025] The bottom of the second housing is provided with an air inlet and an air outlet. One end of the air outlet is provided with a first flexible hose, and the other end of the first flexible hose extends to the outside of the first housing. The first flexible hose is fixed to the first housing by a clamp.

[0026] One end of the air inlet is provided with a second flexible hose, and the other end of the second flexible hose is connected to a third housing. A second through hole is opened at the bottom of the third housing, and a fan is provided at the second through hole.

[0027] The lower half of both sides of the first housing is set as an inclined surface, and a fourth through hole is opened on the inclined surface. A fourth housing without a top is set at the fourth through hole. A filter screen is installed on the side of the fourth housing facing the outside of the first housing. The top of the fourth housing is fixed to the bottom of the third housing. Two heaters are symmetrically arranged on the inner wall of the fourth housing.

[0028] By adopting the above technical solution and by setting up an air drying component, the air inside the second housing is kept dry, and the air environment inside the second housing is kept stable.

[0029] Preferably, two protective covers are symmetrically hinged to the outer side of the first housing, and the protective covers cover the corresponding first hose.

[0030] By adopting the above technical solution and installing a protective cover, the first hose is protected from damage by external forces, thus improving its service life.

[0031] Preferably, the first pipe is provided with a plurality of rotating rods inside, and a second ball bearing is rotatably disposed on the outer circumferential surface of the rotating rod.

[0032] By adopting the above technical solution, and by setting a second ball inside the pipe, the upper and lower second ball inside the first pipe corrects the movement direction of the electrode wire, thereby further improving the straightening effect of the electrode wire.

[0033] Preferably, each of the second housings has threaded through holes at both ends, and a threaded tube is connected to the threaded through holes. Two sponge blocks are disposed inside the threaded tube, and the vertical cross-section of each sponge block is semi-circular. The sponge blocks are bonded to the inner peripheral wall of the threaded tube.

[0034] By adopting the above technology, a sponge block, a spiral tube, and a threaded through hole are provided. The sponge block has the function of cleaning the surface of the electrode wire, and the spiral tube and the threaded through hole cooperate to facilitate the operator to replace the sponge block inside the spiral tube in a timely manner.

[0035] Compared with the prior art, the beneficial effects of the present invention are: the improved straightening device allows the operator to know the state of the electrode wire in the first housing by observing the warning light, so as to adjust the electrode wire in time and improve the straightening effect of the electrode wire. The specific details are as follows;

[0036] 1. A tension alarm component is set up. When the electrode wire in the first housing is not taut, the support column cannot reach its highest position, causing the first iron plate and the second iron plate to separate and the warning light to go out. This allows the operator to observe the state of the electrode wire in the first housing by observing the warning light, so as to adjust the electrode wire in time and improve the straightening effect of the electrode wire.

[0037] 2. A first sliding block and a first sliding groove are provided to restrict the direction and range of movement of the support column;

[0038] 3. A cylinder is provided. When there is no electrode wire in the first housing, the support column is at its lowest reachable position and is in contact with the cylinder. The cylinder can reduce the load force on the four first sliding blocks.

[0039] 4. It is equipped with a first sleeve, a round tube, a ball bearing and a second fixing rod, so that the second fixing rod and the inside of the round tube form rolling friction, reducing the friction between the second fixing rod and the round tube. When no electrode wire passes over the support column or the electrode wire becomes slightly loose, the support column returns to its lowest point position immediately.

[0040] 5. By installing a second ball bearing inside the pipe, the upper and lower ball bearings inside the first pipe correct the movement direction of the electrode wire, thereby further improving the straightening effect of the electrode wire.

[0041] 6. It is equipped with a sponge block, a spiral tube, and a threaded through hole. The sponge block is used to clean the surface of the electrode wire, and the spiral tube and the threaded through hole are matched to facilitate the operator to replace the sponge block inside the spiral tube in a timely manner. Attached Figure Description

[0042] Figure 1 This is a schematic diagram of the overall internal structure of the present invention;

[0043] Figure 2 For the present invention Figure 1 Enlarged structural diagram at point A in the middle;

[0044] Figure 3 For the present invention Figure 2 Enlarged structural diagram at point B;

[0045] Figure 4 For the present invention Figure 1 Enlarged structural diagram at point C;

[0046] Figure 5 For the present invention Figure 1 A schematic diagram of the front view of one end of the second shell in the middle;

[0047] Figure 6 For the present invention Figure 1 Enlarged structural diagram at point D;

[0048] Figure 7 For the present invention Figure 1 Enlarged structural diagram at point E;

[0049] Figure 8 This is a schematic diagram of the sliding component and part of the tightness alarm component in this invention.

[0050] In the diagram: 1. Device body; 11. First housing; 12. First pipe; 13. First rotating rod; 14. First rolling wheel; 2. Tension alarm assembly; 21. Vertical plate; 22. Support column; 24. First rolling ring; 25. Connecting plate; 26. First fixing plate; 27. Second fixing plate; 261. First iron sheet; 271. Second iron sheet; 28. Protective shell; 281. Power supply unit; 282. Warning light; 3. Sliding assembly; 31. First sliding block; 32. First sliding groove; 4. Cylinder; 41. First through hole; 411 42. First sleeve; 43. Round tube; 44. First placement groove; 45. First fixing rod; 46. Ball bearing; 47. Second fixing rod; 68. Air drying assembly; 69. Support plate; 60. Second housing; 61. Air inlet; 62. Air outlet; 63. First hose; 64. Second hose; 65. Third housing; 66. Fan; 77. Third through hole; 78. Fourth housing; 79. Filter screen; 70. Heater; 80. Protective cover; 91. Rotating rod; 92. Second ball bearing; 53. Threaded through hole; 54. Threaded tube; 55. Sponge block. Detailed Implementation

[0051] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0052] Please see Figure 1-8 The present invention provides a technical solution: an electrode wire straightening device with a stable internal environment, comprising a device body 1. The device body 1 includes a first housing 11, with openings on both sides of the first housing 11, and a first pipe 12 disposed at the opening.

[0053] Two first rotating rods 913 are symmetrically arranged inside the first housing 11. First rolling wheels 14 are rotatably mounted on the first rotating rods 913. Vertical plates 21 are provided on both sides of the inner wall of the first housing 11. A support column 22 is provided between the two vertical plates 21, and a sliding component 3 is provided between the support column 22 and each vertical plate 21.

[0054] The sliding assembly 3 includes four first sliding blocks 31, which are symmetrically arranged on both sides of the support column 22. Each upright plate 21 has two first sliding grooves 32 on one side. One end of each first sliding block 31 extends into the corresponding first sliding groove 32, and the first sliding block 31 is slidably connected to the corresponding first sliding groove 32. All four first sliding grooves 32 are arranged along the height direction of the first housing 11.

[0055] A first rolling ring 24 is rotatably fitted onto the outer circumference of the support column 22. The first rolling ring 24 has a groove.

[0056] The electrode wire enters through one of the first pipes 12 and passes through the outer circumference of the corresponding first roller 14. Then, it passes through the groove on the first roller ring 24 and contacts the outer circumference of the other first roller 14. Finally, it exits through the other first pipe 12. The electrode wire is straightened by the two first rollers 14 and the first roller ring 24, thus achieving the purpose of straightening the electrode wire.

[0057] The first pipe 12 is equipped with several rotating rods 9 inside, and second ball bearings 9145 are rotatably mounted on the outer circumference of the rotating rods 9. Through the close contact between the electrode wire inside the first pipe 12 and the several second ball bearings 9145 in the first pipe 12, it is ensured that the device body 1 always modulates the electrode wire when the electrode wire enters the first housing 11 and moves to the outside of the first housing 11.

[0058] The first housing 11 houses a tension alarm component 2. The tension alarm component 2 has two connecting plates 25. A first fixing plate 26 is fixed to the top of both connecting plates 25. Two first iron pieces 261 are symmetrically arranged on the top of the first fixing plate 26. A second fixing plate 27 is located on the top of the inner wall of the first housing 11. Two second iron pieces 271 are symmetrically arranged at the bottom of the second fixing plate 27. The positions of the first iron pieces 261 and the second iron pieces 271 correspond to each other. A protective shell 28 is located on the top of the first housing 11. A power supply unit 281 and a warning light 282 are located inside the protective shell 28. The power supply unit 281, the warning light 282, the two first iron pieces 261, and the two second iron pieces 271 are connected in series by wires.

[0059] When the taut electrode wire is straightened, it causes the support column 22 to move upward. In this embodiment, the support column 22 and its two upright plates 21 are made of lightweight material. The combined weight of the support column 22 and its two upright plates 21 will not cause a load on the electrode wire, thus preventing damage to the electrode wire during straightening.

[0060] A cylinder 4 is fixed between two upright plates 21. A first through hole 41 is provided on one side of the support column 22, through which the cylinder 4 passes. The vertical cross-sectional length of the first through hole 41 is 1.5-2.0 times the vertical cross-sectional diameter of the cylinder 4. In this example, the vertical cross-sectional length of the first through hole 41 is 1.5 times the vertical cross-sectional diameter of the cylinder 4.

[0061] When the electrode wire is taut, it drives the support column 22 to move upward. This causes the upper half of the inner peripheral wall of the first through hole 41 to disengage from the upper half of the cylinder 4. At this time, the first iron sheet 261 and the corresponding second iron sheet 271 come into contact.

[0062] A first sleeve 411 is provided at the bottom of the inner wall of the first through hole 41. A circular tube 42 is provided on the inner peripheral wall of the first sleeve 411. A plurality of first placement grooves 43 are provided on the inner peripheral wall of the circular tube 42 along its height direction. A plurality of first fixing rods 44 are horizontally arranged in the first placement grooves 43. A ball bearing 45 is rotatably arranged on the outer peripheral surface of the first fixing rod 44. Part of the ball bearing 45 is located in the inner hole of the circular tube 42. A second fixing rod 46 is fixed at the bottom of the cylinder 4. One end of the second fixing rod 46 extends into the inside of the circular tube 42. The second fixing rod 46 and the plurality of ball bearings 45 form point contact.

[0063] Two air drying assemblies 6 are installed inside the first housing 11. Each air drying assembly 6 includes three support plates 61. The two ends of the three support plates 61 are fixed to the inner walls of the first housing 11. A second housing 62 is fixed to the bottom of the three support plates 61, and an electrode wire passes through the second housing 62. Each second housing 62 has threaded through holes 5 at both ends, and a spiral tube 51 is connected to each threaded through hole 5. Two sponge blocks 52 are installed inside the spiral tube 51. Each sponge block 52 has a semi-circular vertical cross-section and is bonded to the inner circumferential wall of the spiral tube 51. The electrode wire passes between the two sponge blocks 52 and is in contact with both sponge blocks 52.

[0064] The bottom of the second housing 62 is provided with an air inlet 63 and an air outlet. One end of the air outlet is provided with a first flexible hose 65, and the other end of the first flexible hose 65 extends to the outside of the first housing 11. The first flexible hose 65 is fixed to the first housing 11 by a clamp. One end of the air inlet 63 is provided with a second flexible hose 6, and the other end of the second flexible hose 6 is connected to a third housing 67. The bottom of the third housing 67 is provided with a second through hole, and a fan 68 is provided at the second through hole. The lower half of both sides of the first housing 11 is set as a slope, and a fourth through hole is provided on the slope. A topless fourth housing 71 is provided at the fourth through hole. A filter screen 72 is installed on the side of the fourth housing 71 facing the outside of the first housing 11. The top of the fourth housing 71 is fixed to the bottom of the third housing 67. Two heaters 73 are symmetrically arranged on the inner wall of the fourth housing 71.

[0065] Two protective covers 8 are symmetrically hinged to the outer side of the first housing 11, and the protective covers 8 cover the corresponding first hose 65.

[0066] Working principle:

[0067] The operator manually passes the electrode wire between two second ball bearings 9145 in one of the first pipes 12, and then the electrode wire enters the device body 1. A movable door is provided on one side of the device body 1 to facilitate the operator's installation of the electrode wire.

[0068] The electrode wire entering the first housing 11 first passes through one of the first rollers 14, then enters the groove on the first roller ring 24, the electrode wire that has passed through the groove comes into contact with another first roller 14, and finally one end of the electrode wire passes through another first pipe 12.

[0069] The electrode wire is equipped with a conveying section and a pulling mechanism at both ends. These will not be described in detail here.

[0070] Connect the power supply and start the fan 68 and heater 73.

[0071] While the electrode wire is pulled by the pull-out part, the fan 68 draws the gas outside the first housing 11 into the fourth housing 71. The heater 73 then dries the air entering the fourth housing 71.

[0072] Then, dry air enters the corresponding second housing 62, and the dry air comes into full contact with the electrode wire.

[0073] The air inside the second housing 62 is discharged to the outside of the first housing 11 through the first pipe 12.

[0074] This process is repeated continuously to ensure that the air inside the second housing 62 remains dry.

[0075] When the electrode wire inside the first housing 11 becomes loose, the support column 22 moves downward due to the weight of the support column 22 and the two upright plates 21, causing the upper half of the cylinder 4 to come into contact with the upper half of the inner peripheral wall of the first through hole 41. At this time, the first iron plate 261 and the second iron plate 271 lose contact, causing the warning light 282 to go out.

[0076] At this point, the operator should immediately stop the entire device, conveyor section, and pull-out machine. Identify the problem promptly.

[0077] When the electrode wire inside the first housing 11 is taut, the upper half of the inner peripheral wall of the first through hole 41 disengages from the cylinder 4. The first iron piece 261 then contacts the corresponding second iron piece 271. The warning light 282 remains constantly lit.

[0078] By observing the status of the warning light 282, the operator can determine the state of the electrode wires inside the first housing 11.

[0079] When the operator needs to replace sponge block 52, the operation must be performed after the work is completed or before the work begins.

[0080] The operator opens the movable door on one side of the device body 1. Then, the screw tube 51 is rotated to disengage it from the threaded through hole 5, and the screw tube 51 is removed.

[0081] Furthermore, after the operator replaces the sponge block 52 inside the screw tube 51.

[0082] Finally, the operator screws the screw tube 51 into the threaded through hole 5.

[0083] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0084] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An electrode wire straightening device with a stable internal environment, comprising a device body (1), the device body (1) comprising a first housing (11), the first housing (11) having openings on both sides, and a first pipe (12) provided at the openings. Two first rotating rods (13) are symmetrically arranged inside the first housing (11), and a first rolling wheel (14) is rotatably arranged on the first rotating rod (13). Its features are, Also includes: Tightness alarm component (2); The tightness alarm component (2) is disposed inside the first housing (11). The tightness alarm component (2) includes two upright plates (21). The two upright plates (21) are respectively fixed to one side of the inner wall of the first housing (11). A support column (22) is provided between the two upright plates (21). A sliding component (3) is provided between the support column (22) and each upright plate (21). A first rolling ring (24) is rotatably sleeved on the outer circumferential surface of the support column (22). A wire groove (241) is opened on the first rolling ring (24). The top of the support column (22) is symmetrically provided with two connecting plates (25), and the top of the two connecting plates (25) is fixed with a first fixing plate (26). The top of the first fixing plate (26) is symmetrically provided with two first iron plates (261). The top of the inner wall of the first housing (11) is provided with a second fixing plate (27), and two second iron pieces (271) are symmetrically arranged at the bottom of the second fixing plate (27). The positions of the first iron piece (261) and the second iron piece (271) are opposite. The top of the first housing (11) is provided with a protective shell (28), and a power supply unit (281) and a warning light (282) are provided inside the protective shell (28). The power supply unit (281), the warning light (282), the two first iron pieces (261) and the two second iron pieces (271) are connected in series by wires. Two air drying components (6) are provided inside the first housing (11); the air drying components (6) include three support plates (61), the two ends of the three support plates (61) are fixed to the two sides of the inner wall of the first housing (11), and the bottom of the three support plates (61) is fixed to the second housing (62), and the electrode wire passes through the second housing (62). The bottom of the second housing (62) is provided with an air inlet (63) and an air outlet (64). One end of the air outlet (64) is provided with a first hose (65). The other end of the first hose (65) extends to the outside of the first housing (11). The first hose (65) is fixed to the first housing (11) by a clamp. One end of the air inlet (63) is provided with a second flexible hose (66), and the other end of the second flexible hose (66) is connected to a third housing (67). A second through hole (671) is provided at the bottom of the third housing (67), and a fan (68) is provided at the second through hole (671). The lower half of both sides of the first housing (11) is set as an inclined surface, and a fourth through hole (7) is opened on the inclined surface. A fourth housing (71) without a top is set at the fourth through hole (7). A filter screen (72) is installed on the side of the fourth housing (71) facing the outside of the first housing (11). The top of the fourth housing (71) is fixed to the bottom of the third housing (67). Two heaters (73) are symmetrically arranged on the inner wall of the fourth housing (71). Two protective covers (8) are symmetrically hinged to the outside of the first housing (11), and the protective covers (8) cover the corresponding first hose (65).

2. The electrode wire straightening device with a stable internal environment according to claim 1, characterized in that: The sliding component (3) includes four first sliding blocks (31), which are symmetrically arranged on both sides of the support column (22); Two first sliding grooves (32) are provided on one side of each of the upright plates (21), one end of the first sliding block (31) extends into the corresponding first sliding groove (32), and the first sliding block (31) is slidably connected to the corresponding first sliding groove (32).

3. The electrode wire straightening device with a stable internal environment according to claim 2, characterized in that: A cylinder (4) is fixed between the two upright plates (21); The support column (22) has a first through hole (41) on one side, through which the cylinder (4) passes. The vertical cross-sectional length of the first through hole (41) is 1.5-2.0 times the vertical cross-sectional diameter of the cylinder (4).

4. The electrode wire straightening device with a stable internal environment according to claim 3, characterized in that: A first sleeve (411) is provided at the bottom of the inner wall of the first through hole (41). A round tube (42) is provided on the inner peripheral wall of the first sleeve (411). A plurality of first placement grooves (43) are provided on the inner peripheral wall of the round tube (42) along its height direction. A plurality of first fixing rods (44) are horizontally arranged in the first placement grooves (43). A ball bearing (45) is rotatably arranged on the outer peripheral surface of the first fixing rod (44). The ball bearing (45) is partially located at the inner hole of the round tube (42). The bottom of the cylinder (4) is fixed with a second fixing rod (46), one end of which extends into the inside of the round tube (42), and the second fixing rod (46) makes point contact with a plurality of the balls (45).

5. The electrode wire straightening device with a stable internal environment according to claim 1, characterized in that: The first pipe (12) is provided with a plurality of rotating rods (9), and the outer circumferential surface of the rotating rods (9) is provided with a second ball (91).

6. The electrode wire straightening device with a stable internal environment according to claim 1, characterized in that: Each of the second housings (62) has threaded through holes (5) at both ends. A threaded tube (51) is connected to the threaded through hole (5). Two sponge blocks (52) are installed inside the threaded tube (51). The vertical cross section of each sponge block (52) is semi-circular. The sponge block (52) is bonded to the inner circumferential wall of the threaded tube (51).

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