Gas protection device for flat angle line calendering process

Abstract

The utility model relates to the technical field of flat angle line processing, and provides a gas protection device for a flat angle line calendaring process, which comprises a protection tube arranged on a calendaring machine, a plug arranged at the upper end of the protection tube, and a gas transmission piece arranged on the calendaring machine and used for inputting nitrogen or other inert gases into the protection tube, the plug is provided with a first through hole for a copper wire to penetrate through, the plug is elastic, and the calender comprises a rack, a plurality of calendering rollers rotationally connected to the rack and a driving part for driving the calendering rollers to rotate; the copper wire is wound on the calendering rollers in a snake shape in the length direction of the machine frame, the protection pipe is arranged on a winding path of the copper wire wound on the calendering rollers, the length direction of the protection pipe is parallel to the height direction of the copper wire, and a cooling water pool is arranged on the machine frame and located below the protection pipe. The water level in the cooling water tank is higher than the lower end face of the protection pipe. The method has the beneficial effect of reducing the oxidation layer on the outer surface of the copper wire.

Description

Technical Field

[0001] The present application relates to the technical field of flat angle wire processing, and in particular to a gas protection device for a flat angle wire rolling process. Background Art

[0002] Flat wire, also known as flat wire, flattened wire, flat-angle wire, or ultra-narrow strip, refers to a special-shaped metal wire with a roughly rounded rectangular cross-section. Its thickness ranges from 0.025mm to 2mm, and its width is generally less than 5mm. Its width-to-thickness ratio varies from 2:1 to 50:1. Due to its ribbon-like shape, flat wire is sometimes also called ultra-narrow flat ribbon. Compared to common round wire, this form offers unique advantages in heat dissipation, welding contact area, fatigue resistance, and hardness control.

[0003] During the production process, the flat angle wire needs to be flattened using a calender. After calendering, the flat angle wire will be cooled to shape it. In the existing technology, the cooling process is usually carried out by using a calender roller to drive the flat angle wire into a cooling water pool for cooling. Sometimes the calendered flat angle wire is specifically copper wire, which will react with oxygen in the air at a high temperature to generate copper oxide. This is a chemical reaction process, but the oxide layer produced is relatively small. However, when the copper wire enters the cooling water, the presence of water and oxygen further promotes the oxidation reaction, resulting in a thicker oxide layer formed on the surface of the copper wire. The oxide layer produced will reduce the electrical conductivity of the copper wire because the oxide has a higher resistivity. At the same time, the oxide layer may also reduce its strength and toughness, which requires further improvement. Utility Model Content

[0004] In order to reduce the generation of an oxide layer on the outer surface of a copper wire, the present application provides a gas protection device for a flat wire rolling process.

[0005] The present application provides a gas protection device for a flat angle wire rolling process, which adopts the following technical solution:

[0006] A gas protection device for a flat wire rolling process comprises a protection tube arranged on a rolling machine, a plug arranged at the upper end of the protection tube, and a gas supply component arranged on the rolling machine for supplying nitrogen or other inert gas into the protection tube. The plug is provided with a first through-hole for copper wire to pass through, and the plug is elastic. The rolling machine comprises a frame, a plurality of rolling rollers rotatably connected to the frame, and a drive component for driving the rolling rollers to rotate; the copper wire is serpentinely wound around the plurality of rolling rollers along the length direction of the frame, the protection tube is arranged on a winding path for the copper wire to be wound around the rolling rollers, the length direction of the protection tube is parallel to the height direction of the copper wire, a cooling water pool is provided on the frame below the protection tube, the water level in the cooling water pool is higher than the height of the protection tube at the lower end face, and a rolling roller for copper wire to be wound is also rotatably connected in the cooling water pool.

[0007] By adopting the above technical solution, a protective tube is provided, and nitrogen or other inert gas is introduced into the protective tube through a gas delivery member. Due to the inherent stability of the inert gas, it is not easy to react with other substances, thereby forming a protective layer on the outside of the copper wire, thereby isolating the copper wire from the water in the cooling water pool to a certain extent, thereby reducing the possibility of an oxide layer being formed on the copper wire when it enters the cooling water pool for cooling. In addition, when the copper wire passes through the plug and enters the protective tube, the inert gas can also have a certain air cooling effect on the temperature of the outer surface of the copper wire.

[0008] Preferably, the plug is provided with a correction member for correcting the axis of the copper wire.

[0009] By adopting the above technical solution, during the pulling process, due to the metallic properties of the copper wire itself, its hardness is greater than that of the plug. During the process of inserting the plug, the axis between the copper wire and the plug may be rubber, which may wear the plug, thereby increasing the spacing of the first perforations. Since the density of nitrogen itself is relatively low compared to the outside air, it will flow out of the protective tube from the first perforations too much, which may reduce the actual utilization rate of nitrogen and increase the corresponding cost. By providing a correction member to correct the axis of the copper wire, the wear of the plug when inserting it into the first perforation on the plug is reduced.

[0010] Preferably, the correcting part includes a first correcting plate and a second correcting plate respectively arranged on the upper and lower surfaces of the plug, the first correcting plate and the second correcting plate are coaxially arranged, and the first correcting plate and the second correcting plate are both penetrated by a fourth through-hole for the copper wire to pass through, and the fourth through-hole is connected to the first through-hole; a guide surface is arranged around the inner wall of the fourth through-hole near the upper surface of the second correcting plate.

[0011] By adopting the above technical solution, through the fourth perforation set on the first correcting plate and the second correcting plate, the guide surface set after the two first correcting plates and the second correcting plates are corrected can reduce the wear on the copper wire and also facilitate the insertion of the first correcting plate into the protective tube.

[0012] Preferably, it also includes a fixing seat arranged on the calender to fix the protective tube, the fixing seat includes a fixing block fixedly connected to the calender, a hinged plate hinged to the fixing block, and a fixing part for mounting the hinged plate on the positioning plate, an arc-shaped surface is provided between the surfaces of the fixing block and the hinged plate that are close to each other, and a second through-hole is formed between the fixing block and the hinged plate for the protective tube to pass through.

[0013] By adopting the above technical solution, a fixing seat is provided, the hinge plate is installed on the fixing block through the fixing piece, and the protective tube is installed on the fixing seat, so as to fix the upper end of the protective tube.

[0014] Preferably, the fixing member includes two mounting blocks respectively arranged on the fixing block and the hinge plate, a bolt passing through the two mounting blocks, and a nut threadedly connected to the bolt.

[0015] By adopting the above technical solution, bolts are passed through the two mounting blocks and threadedly connected with nuts to fix the fixing block and the end of the hinged plate away from its own hinge point, so as to fix the protective tube.

[0016] Preferably, elastic pads are provided on surfaces of the fixing block and the hinge plate that are close to each other.

[0017] By adopting the above technical solution, the elastic pad is used to reduce the possibility of the rigid contact of the fixed block and the hinged plate on the protective tube to wear the protective tube, and the gap between the protective tube and the fixed block and the hinged block can be filled. When the fixing part is fixed, the elastic pad is squeezed to increase the friction between the protective tube and the protective tube, thereby improving the fixing effect of the protective tube.

[0018] Preferably, it further comprises a positioning plate arranged at the pool mouth of the cooling water pool, wherein the positioning plate is penetrated by a third through-hole for the protection tube to pass through, and an elastic ring is wound around the inner peripheral wall of the positioning plate.

[0019] By adopting the above technical solution, the positioning plate is provided to cooperate with the fixing seat to improve the protection effect of the protection tube, and the elastic ring is provided mainly to reduce the wear on the outer peripheral wall of the protection tube.

[0020] Preferably, the protective tube includes, from top to bottom, a first tube, a second tube fixedly connected to the first tube, and a third tube fixedly connected to the second tube. The first tube and the third tube are both transparent glass tubes. The second tube is made of silicone. A connecting tube is fixedly penetrated through the outer peripheral wall of the second tube. The gas transmission component includes an air intake pipe slidably inserted into the connecting tube, and the air intake pipe is fixedly penetrated through the calender.

[0021] By adopting the above technical solution, the first tube and the second tube are set as glass tubes to check the threading of the copper wire, and the second tube is set as silicone to connect with the air intake pipe. Since the protective tube is fixed by the fixing seat and the positioning plate, the possibility of leakage between the air intake pipe and the connecting pipe is relatively small.

[0022] In summary, the present invention has the following beneficial effects:

[0023] A protective tube is provided, and nitrogen is introduced into the tube through a gas delivery component. Due to the inherent stability of nitrogen, it is not easily reacted with other substances, thus forming a protective layer on the copper wire. This has a certain effect of isolating the copper wire from the air when entering the cooling water tank, thereby reducing the possibility of the copper wire forming an oxide layer when entering the cooling water tank. In addition, when the copper wire passes through the plug and enters the protective tube, the nitrogen also has a certain air cooling effect on the temperature of the copper wire's outer surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of Example 1 of the present application;

[0025] Figure 2 This is a schematic structural diagram of the protective tube in Example 1 of the present application;

[0026] Figure 3 This is a schematic diagram of the structure of the gas transmission component in Example 1 of the present application;

[0027] Figure 4 is a schematic side cross-sectional structural diagram of the frame in Example 1 of the present application;

[0028] Figure 5 This is a schematic diagram of the cross-sectional structure of the plug in Example 2 of the present application.

[0029] Explanation of the accompanying drawings: 1. Copper wire; 2. Calender; 21. Frame; 22. Calendering roller; 23. Cooling water pool; 3. Protective tube; 31. First tube; 32. Second tube; 33. Third tube; 34. Connecting tube; 4. Plug; 5. Gas supply component; 51. Inlet pipe; 52. Gas supply pipe; 53. Control valve; 54. Tank body; 6. Fixing seat; 61. Fixing block; 62. Hinge plate; 63. Fixing component; 631. Mounting block; 632. Bolt; 633. Nut; 64. Elastic pad; 7. Positioning plate; 71. Third perforation; 72. Elastic ring; 8. Correcting component; 81. First correcting plate; 82. Second correcting plate; 83. Fourth perforation; 84. Guide surface. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-5 , further details of this application are given.

[0031] The embodiment of the present application discloses a gas protection device for a flat angle wire rolling process.

[0032] Example 1:

[0033] A gas protection device for flat angle wire rolling process, referring to Figure 1 、 Figure 2 , including a protection tube 3 arranged on the calender 2, a plug 4 arranged at the upper end of the protection tube 3, a gas supply part 5 arranged on the calender 2 to supply nitrogen or other inert gas into the protection tube 3, and a fixing seat 6 and a positioning plate 7 arranged on the calender 2 to fix the protection tube 3.

[0034] The calendering machine 2 specifically comprises a frame 21, a plurality of calendering rollers 22 rotatably connected to the frame 21, and a drive member (not shown) for rotating the calendering rollers 22. Since the calendering machine 2 is conventional, no further description is given here. Regarding the winding of the copper wire 1, in this embodiment, the copper wire 1 is wound in a serpentine pattern along the length of the frame 21 around the plurality of calendering rollers 22, while the protective tube 3 is disposed along the winding path of the copper wire 1 around the calendering rollers 22.

[0035] In this embodiment, the length direction of the protective tube 3 is parallel to the height direction of the copper wire 1, that is, parallel to the height direction of the frame 21, wherein the frame 21 is provided with a cooling water pool 23 below the protective tube 3, and the water level in the cooling water pool 23 is higher than the height of the lower end face of the protective tube 3. The cooling water pool 23 also has a rotatably connected calendering roller 22 for winding the copper wire 1, and specifically two are provided along the length direction of the cooling water pool 23.

[0036] Among them, the protective tube 3 includes, from top to bottom, a first tube 31, a second tube 32 fixedly connected to the first tube 31, and a third tube 33 fixedly connected to the second tube 32. The first tube 31 and the third tube 33 are both transparent glass tubes, the second tube 32 is made of silicone, and a connecting tube 34 is fixedly penetrated through the outer peripheral wall of the second tube 32 to connect to the gas transmission component 5.

[0037] Reference Figure 3 、 Figure 4 In this embodiment, the gas delivery component 5 specifically includes an air inlet pipe 51 slidably inserted into the connecting pipe 34, an air delivery pipe 52 connected to the air inlet pipe 51, a control valve 53 provided on the air delivery pipe 52, and a tank body 54 connected to the air delivery pipe 52, wherein a portion of the air delivery pipe 52 is fixedly passed through the frame 21 and exposed outside the frame 21, and the tank body 54 is used to store nitrogen or other inert gases. It is specifically set according to needs. The tank body 54 is set on a side wall of the frame 21 away from the protective tube 3. In this embodiment, the control valve 53 is set on the air delivery pipe 52 exposed to the frame 21 to control the input of nitrogen. The air inlet pipe 51 is fixedly passed through the frame 21.

[0038] Back to Figure 2 In this embodiment, the plug 4 is elastic, and a first through-hole is provided through the plug 4 for the copper wire 1 to pass through. The plug 4 is slidably inserted into the first tube 31, and a connecting portion is provided around the peripheral wall of the plug 4 that abuts against the outer peripheral wall of the tube. The plug 4 is specifically tied to the protective tube 3 by a cable tie.

[0039] The fixing base 6 specifically includes a fixing block 61 fixedly connected to the frame 21, a hinge plate 62 hinged to the fixing block 61, and a fixing member 63 for mounting the hinge plate 62 to the positioning plate 7. An arcuate surface is formed between the adjacent surfaces of the fixing block 61 and the hinge plate 62, and a second through-hole for the protective tube 3 to pass through is formed between the fixing block 61 and the hinge plate 62. The fixing member 63 includes two mounting blocks 631 respectively disposed on the fixing block 61 and the hinge plate 62, a bolt 632 passing through the two mounting blocks 631, and a nut 633 threadedly connected to the bolt 632. The two mounting blocks 631 abut against each other.

[0040] Among them, the positioning plate 7 is penetrated by a third through-hole 71 for the protection tube 3 to pass through. Furthermore, in order to reduce damage to the protection tube 3, in this embodiment, the surfaces of the fixing block 61 and the hinge plate 62 close to each other are provided with elastic pads 64, and the inner peripheral wall of the positioning plate 7 is wrapped with an elastic ring 72, which can also increase the fixing effect of the protection tube 3.

[0041] The implementation principle of the gas protection device for the flat wire rolling process in the embodiment of the present application is as follows: a protection tube 3 is provided, and nitrogen is input into the protection tube 3 through a gas transmission part 5. Due to the stability of nitrogen itself, it is not easy to react with other substances, thereby forming a protective layer on the outside of the copper wire 1, so as to have a certain effect of isolating the copper wire 1 from the water in the cooling water pool 23 from the air, thereby reducing the possibility of an oxide layer being generated on the copper wire 1 when it enters the cooling water pool 23 for cooling.

[0042] Example 2:

[0043] Reference Figure 5 , which is different from Example 1 in that a correcting member 8 for correcting the axis of the copper wire 1 is provided on the plug 4. In this embodiment, the correcting member 8 specifically includes a first correcting plate 81 and a second correcting plate 82 respectively provided on the upper and lower surfaces of the plug 4. The first correcting plate 81 and the second correcting plate 82 are coaxially arranged. The first correcting plate 81 and the second correcting plate 82 are both penetrated by a fourth through-hole 83 for the copper wire 1 to pass through. The fourth through-hole 83 is connected to the first through-hole; a guide surface 84 is provided around the inner wall of the fourth through-hole 83 near the upper surface of the second correcting plate 82.

[0044] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A gas protection device for a flat wire rolling process, characterized by: The invention comprises a protective tube (3) arranged on a calender (2), a plug (4) arranged on the upper end of the protective tube (3), and a gas supply member (5) arranged on the calender (2) for supplying nitrogen or other inert gas into the protective tube (3), wherein the plug (4) is provided with a first through-hole for the copper wire (1) to pass through, and the plug (4) is elastic. The calender (2) comprises a frame (21), a plurality of calender rollers (22) rotatably connected to the frame (21), and a driving member for driving the calender rollers (22) to rotate; the copper wire (1) is rotated along the frame (21) 1) is wound around a plurality of calendering rollers (22) in a serpentine shape in its length direction, the protective tube (3) is arranged on a winding path of the copper wire (1) wound around the calendering rollers (22), the length direction of the protective tube (3) is parallel to the height direction of the copper wire (1), the frame (21) is provided with a cooling water pool (23) below the protective tube (3), the water level in the cooling water pool (23) is higher than the height of the lower end surface of the protective tube (3), and the calendering roller (22) for winding the copper wire (1) is also rotatably connected in the cooling water pool (23).

2. The gas protection device for a flat wire rolling process according to claim 1, characterized in that: The plug (4) is provided with a correction member (8) for correcting the axis of the copper wire (1).

3. The gas protection device for the flat wire rolling process according to claim 2, characterized in that: The correcting member (8) comprises a first correcting plate (81) and a second correcting plate (82) respectively arranged on the upper and lower surfaces of the plug (4), the first correcting plate (81) and the second correcting plate (82) being coaxially arranged, and both the first correcting plate (81) and the second correcting plate (82) are provided with a fourth through-hole (83) for the copper wire (1) to pass through, the fourth through-hole (83) being connected to the first through-hole; and a guide surface (84) is provided around the inner wall of the fourth through-hole (83) close to the upper surface of the second correcting plate (82).

4. The gas protection device for a flat wire rolling process according to claim 1, characterized in that: The invention also includes a fixing seat (6) arranged on the calender (2) to fix the protective tube (3), the fixing seat (6) including a fixing block (61) fixedly connected to the calender (2), a hinge plate (62) hinged to the fixing block (61), and a fixing member (63) for mounting the hinge plate (62) on the positioning plate (7), an arcuate surface is provided between the surfaces of the fixing block (61) and the hinge plate (62) that are close to each other, and a second through hole for the protective tube (3) to pass through is formed between the fixing block (61) and the hinge plate (62).

5. The gas protection device for the flat wire rolling process according to claim 4, characterized in that: The fixing member (63) comprises two mounting blocks (631) respectively arranged on the fixing block (61) and the hinge plate (62), a bolt (632) passing through the two mounting blocks (631), and a nut (633) threadedly connected to the bolt (632).

6. The gas protection device for the flat angle wire rolling process according to claim 4, characterized in that: Surfaces of the fixed block (61) and the hinge plate (62) that are close to each other are both provided with elastic pads (64).

7. The gas protection device for the flat angle wire rolling process according to claim 3, characterized in that: It also includes a positioning plate (7) arranged at the pool mouth of the cooling water pool (23), the positioning plate (7) having a third through-hole (71) for the protection tube (3) to pass through, and an elastic ring (72) wrapped around the inner peripheral wall of the positioning plate (7).

8. The gas protection device for the flat angle wire rolling process according to claim 7, characterized in that: The protective tube (3) comprises, from top to bottom, a first tube (31), a second tube (32) fixedly connected to the first tube (31), and a third tube (33) fixedly connected to the second tube (32); the first tube (31) and the third tube (33) are both transparent glass tubes; the second tube (32) is made of silicone; a connecting tube (34) is fixedly penetrated through the outer peripheral wall of the second tube (32); the gas transmission component (5) comprises an air inlet pipe (51) slidably inserted into the connecting tube (34); the air inlet pipe (51) is fixedly penetrated through the calender (2).

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