Nitrogen protection device of bare copper wire continuous stretcher
By designing a nitrogen protection device, the problem of uneven nitrogen concentration in the continuous stretching machine for bare copper wire was solved, achieving effective protection of the copper wire and preventing oxidation.
Patent Information
- Application Number
- CN202520015329.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-06
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-01-06
AI Technical Summary
In existing continuous stretching machines for bare copper wire, uneven nitrogen concentrations during the annealing process due to the copper wire entering and exiting the heating chamber affect the protective effect and lead to copper wire oxidation.
A nitrogen protection device was designed, including a heating chamber, a protection component, and a gas filling component, which prevents copper wire oxidation by uniformly mixing nitrogen with a small amount of air.
It effectively prevents copper wires from oxidizing in the heating chamber, maintains a uniform nitrogen concentration, and improves the protection effect.
Smart Images
Figure CN223646591U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wire and cable manufacturing technology, and in particular to a nitrogen protection device for a bare copper wire continuous stretching machine. Background Technology
[0002] A continuous bare copper wire drawing machine is a type of mechanical equipment specifically designed for processing bare copper wire. Its main function is to gradually reduce the diameter of thicker bare copper wire through a continuous drawing process, while increasing its length and strength to meet the requirements of different fields for copper wire specifications and performance. Existing drawing processes include wire drawing and annealing. However, due to the excessively high temperature of the annealing environment, the copper wire is easily oxidized by contact with air. Existing processes use nitrogen to coat the copper wire to prevent oxidation.
[0003] Existing annealing protection devices provide protection by filling the annealing chamber with nitrogen. However, since the copper wire needs to enter and exit the annealing chamber, a small amount of air will be introduced. As time goes by, this air will accumulate in the annealing chamber, causing the local nitrogen concentration to be too high or too low, which directly affects the protection effect. Utility Model Content
[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.
[0005] In view of the problems existing in the nitrogen protection devices of the above and / or existing bare copper wire continuous stretching machines, this utility model is proposed.
[0006] Therefore, the problem to be solved by this utility model is that excessively high or low local nitrogen concentration in the heating chamber leads to copper wire oxidation.
[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a nitrogen protection device for a bare copper wire continuous stretching machine, which includes a main component, including a heating chamber and a copper wire, wherein the copper wire is slidably connected to the heating chamber.
[0008] A protective component is disposed on one side of the heating chamber and includes a heating element disposed inside the heating chamber. The heating element includes a heat insulation cover plate, which is fixed to the surface of the heating chamber. A heating coil is fixedly connected to the heat insulation cover plate, and a copper wire slides inside the heating coil.
[0009] In a preferred embodiment of the nitrogen protection device for the bare copper wire continuous stretching machine of this utility model, the heating element further includes a wire, which is fixedly connected to the heat insulation cover plate and electrically connected to the input end of the heating coil.
[0010] As a preferred embodiment of the nitrogen protection device for the bare copper wire continuous stretching machine of this utility model, the protection component further includes a limiting member, the limiting member including a limiting tube, the limiting tube being fixedly connected to one side of the heating chamber, the copper wire sliding inside the limiting tube, a gathering tube being fixed to one side of the limiting tube, and the inner wall of the gathering tube being provided with an inclined surface.
[0011] As a preferred embodiment of the nitrogen protection device for the bare copper wire continuous stretching machine of this utility model, the limiting member further includes a pulley housing, the pulley housing is fixedly connected to the surface of the heating chamber, the pulley housing is in communication with the heating chamber, a limiting wheel is rotatably connected inside the pulley housing, the surface of the limiting wheel is provided with a wire groove, and the number of limiting wheels is two.
[0012] As a preferred embodiment of the nitrogen protection device for the bare copper wire continuous stretching machine of the present invention, the protection component further includes an isolation element, including an isolation plate, which is fixed in the heating chamber.
[0013] As a preferred embodiment of the nitrogen protection device for the bare copper wire continuous stretching machine of this utility model, a straight air pipe is provided on one side of the isolation plate, the straight air pipe is fixed to one side of the isolation plate, a copper wire pipe is also fixed on one side of the isolation plate, and a curved air pipe is fixedly connected to the inner wall of the heating chamber.
[0014] As a preferred embodiment of the nitrogen protection device for the bare copper wire continuous stretching machine of this utility model, the isolation component further includes a fixing frame disposed on the other side of the isolation plate, the fixing frame being fixed to the inner wall of the heating chamber, a rotating shaft being fixedly connected to the surface of the fixing frame, and a wind baffle being rotatably connected to the surface of the rotating shaft.
[0015] As a preferred embodiment of the nitrogen protection device for the bare copper wire continuous stretching machine of this utility model, the protection component further includes an inflation component, which is disposed on one side of the heating chamber and includes a U-shaped tube. The U-shaped tube is disposed on one side of the heating chamber, and an insertion tube is fixedly connected to one side of the U-shaped tube. An insertion shell is fixedly connected to one side of the heating chamber, and the insertion tube is inserted into the insertion shell.
[0016] As a preferred embodiment of the nitrogen protection device for the bare copper wire continuous stretching machine of this utility model, the gas filling component further includes a connecting pipe, one side of which is fixedly connected to one side of the U-shaped pipe.
[0017] As a preferred embodiment of the nitrogen protection device for the bare copper wire continuous stretching machine of this utility model, the heating chamber is also provided with connecting pipes on both sides, the connecting pipe on one side of the coiling pipe is used for air intake, and the connecting pipe on the other side of the heating chamber is used for air exhaust.
[0018] The beneficial effects of this invention are as follows: by setting up a protective component, a small amount of air introduced into the heating chamber can be evenly mixed with nitrogen, so that the air will not adhere to the surface of the copper wire, thus preventing it from reacting with the air and causing oxidation. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:
[0020] Figure 1 This is a front view structural diagram of the nitrogen protection device for a continuous bare copper wire stretching machine.
[0021] Figure 2 This is a cross-sectional view of the nitrogen protection device of a continuous bare copper wire stretching machine.
[0022] Figure 3 This is a partial cross-sectional view of the nitrogen protection device of a continuous bare copper wire stretching machine.
[0023] Figure 4 This is a partial structural diagram of the nitrogen protection device for a continuous bare copper wire stretching machine.
[0024] Figure 5 This is a partial structural diagram of the nitrogen protection device for a continuous bare copper wire stretching machine. Detailed Implementation
[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0027] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.
[0028] Example 1
[0029] Reference Figure 1 and Figure 2 This is the first embodiment of the present invention. This embodiment provides a nitrogen protection device for a continuous bare copper wire stretching machine. The nitrogen protection device for the continuous bare copper wire stretching machine includes a main component 100, including a heating chamber 101 and a copper wire 102, with the copper wire 102 slidably connected in the heating chamber 101.
[0030] The heating chamber 101 is used to isolate the outside air and prevent the outside air from oxidizing the copper wire 102. The cooling liquid pool 103 is used to cool the high-temperature copper wire 102.
[0031] The protective component 200 is disposed on one side of the heating chamber 101 and includes a heating element 201 disposed inside the heating chamber 101. The heating element 201 includes a heat insulation cover plate 201a, which is fixed to the surface of the heating chamber 101. A heating coil 201b is fixedly connected to the heat insulation cover plate 201a, and a copper wire 102 slides inside the heating coil 201b.
[0032] The heat insulation cover 201a is fixedly connected to the heating chamber 101 to block the diffusion of heat and to seal the heating chamber 101. The copper wire 102 passes through the heating coil 201b to heat the copper wire 102.
[0033] Specifically, the heating element 201 also includes a wire 201c, which is fixedly connected to the heat insulation cover plate 201a and electrically connected to the input end of the heating coil 201b.
[0034] The wire 201c passes through the heat insulation cover 201a and is electrically connected to the input terminal of the heating coil 201b, so that the heating coil 201b can raise the temperature of the copper wire 102.
[0035] Specifically, the protection component 200 also includes a limiting member 202, which includes a limiting tube 202a. The limiting tube 202a is fixedly connected to one side of the heating chamber 101. The copper wire 102 slides inside the limiting tube 202a. A gathering tube 202b is fixed to one side of the limiting tube 202a. The inner wall of the gathering tube 202b is provided with an inclined surface 202b-1.
[0036] The inclined surface 202b-1 on the surface of the coil tube 202b facilitates the insertion of the copper wire 102 into the heating chamber 101 without aligning the copper wire with the insertion hole of the heating chamber 101. The pulley housing 202c can hold other components for use, and the pulley housing 202c is connected to the heating chamber 101 to prevent nitrogen from escaping.
[0037] Specifically, the limiting component 202 also includes a pulley housing 202c, which is fixedly connected to the surface of the heating chamber 101 and communicates with the interior of the heating chamber 101. A limiting wheel 202d is rotatably connected inside the pulley housing 202c, and a groove 202d-1 is provided on the surface of the limiting wheel 202d. There are two limiting wheels 202d.
[0038] There are two limiting wheels 202d, and two pulley housings 202c are provided on both sides of the pulley housing 202c. Under the joint action of the two limiting wheels 202d, the copper wire 102 can be clamped. The wire groove 202d-1 is used to limit the copper wire 102, so that the copper wire 102 maintains a stable state in the heating chamber 101.
[0039] Example 2
[0040] Reference Figures 3-4 This is the second embodiment of the present invention, which is based on the previous embodiment.
[0041] Specifically, the protection component 200 also includes an isolation element 203, including an isolation plate 203a, which is fixed inside the heating chamber 101.
[0042] The isolation plate 203a divides the heating chamber 101 into two areas: an isolation area and a non-isolation area, which facilitates the handling of a small amount of air in the chamber.
[0043] Specifically, a straight air pipe 203b is provided on one side of the isolation plate 203a, the straight air pipe 203b is fixed to one side of the isolation plate 203a, a copper wire pipe 203c is also fixed on one side of the isolation plate 203a, and a curved air pipe 203d is fixedly connected to the inner wall of the heating chamber 101.
[0044] The straight gas pipe 203b is used to connect nitrogen gas to the isolation area on one side of the isolation plate 203a in the heating chamber 101, and the curved gas pipe 203d is used to connect nitrogen gas to the non-isolation area on the other side of the isolation plate 203a in the heating chamber 101.
[0045] Specifically, the isolation component 203 also includes a fixing frame 203e provided on the other side of the isolation plate 203a. The fixing frame 203e is fixed to the inner wall of the heating chamber 101. A rotating shaft 203f is fixedly connected to the surface of the fixing frame 203e. A wind baffle 203g is rotatably connected to the surface of the rotating shaft 203f.
[0046] The surface of the U-shaped tube 204a is provided with four insertion tubes 204b, which can divide the nitrogen gas flow into four parts and distribute it more evenly in the heating chamber 101. The insertion tubes 204b are inserted into the shell 204c and the insertion tubes 204b and the shell 204c are sealed to prevent nitrogen from overflowing.
[0047] Specifically, the protection component 200 also includes an inflation component 204, which is disposed on one side of the heating chamber 101. It includes a U-shaped tube 204a, which is disposed on one side of the heating chamber 101. An insertion tube 204b is fixedly connected to one side of the U-shaped tube 204a, and a housing 204c is fixedly connected to one side of the heating chamber 101. The insertion tube 204b is inserted into the housing 204c.
[0048] The wind baffle 203g is used to agitate and disperse the nitrogen gas filled into the heating chamber 101, so that the filled nitrogen gas is fully mixed with the gas in the heating chamber 101, so that the nitrogen gas concentration in the heating chamber 101 is uniform, and to prevent the nitrogen gas concentration in some areas from being too low, which would cause a reaction with the surface of the copper wire 102.
[0049] Example 3
[0050] Reference Figure 1 and Figure 5 This is the third embodiment of the present invention, which is based on the first two embodiments.
[0051] Specifically, the inflation component 204 also includes a connecting pipe 204d, one side of which is fixedly connected to one side of the U-shaped pipe 204a.
[0052] Connecting the connecting pipe 204d to the U-shaped pipe 204a allows nitrogen gas to enter the U-shaped pipe 204a through the connecting pipe 204d.
[0053] Specifically, the heating chamber 101 is also provided with connecting pipes 204d on both sides. The connecting pipe 204d on one side of the converging pipe 202b is used for air intake, and the connecting pipe 204d on the other side of the heating chamber 101 is used for air exhaust.
[0054] Two connecting pipes 204d are set as a group. The connecting pipe 204d on one side of the receiving pipe 202b is used for air intake, pumping nitrogen into the heating chamber 101 and mixing it with a very small amount of air entering, keeping the nitrogen concentration in the heating chamber 101 stable and uniform. Then it is pumped out from the connecting pipe on the other side for collection, so that it can be processed and reused.
[0055] In use, nitrogen is introduced into the inlet connecting pipe 204d, passing through four insertion pipes 204b. Three of these insertion pipes 204b are connected at their other ends to straight air pipes 203b, connecting the nitrogen to the isolation zone. The other insertion pipe 204b is connected to the curved air pipe 203d, introducing the nitrogen into the non-isolated zone. At this point, the copper wire is threaded through the coiling pipe 202b, passing through the limiting pipe 202a, and entering the non-isolated zone. Since a small amount of air is introduced during the threading process, the nitrogen, passing through the curved air pipe 203d, blows the surface of the copper wire 102, dispersing the air adhering to its surface. The wire then enters the isolation zone, where it is heated by the heating coil 201b. The copper wire 102 is heated to a higher temperature, causing it to soften. Under the clamping action of two limiting wheels 202d, the copper wire 102 remains stable during transmission. Since the isolation zone is supplied with air through three straight air pipes 203b, while the non-isolation zone is supplied with air through one straight air pipe 203b, the air pressure in the isolation zone is slightly higher than that in the non-isolation zone. Nitrogen from the non-isolation zone will not enter the isolation zone, reducing the nitrogen concentration in the isolation zone. Finally, the nitrogen is collected through the U-shaped pipe 204a and the connecting pipe 204d on the other side of the heating chamber 101. At this time, the copper wire 102 is sent out from the other end of the heating chamber 101 through heating and enters the next process.
[0056] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A nitrogen protection device for a continuous bare copper wire stretching machine, characterized in that: include, The main component (100) includes a heating chamber (101) and a copper wire (102), wherein the copper wire (102) is slidably connected within the heating chamber (101); A protective component (200) is disposed on one side of the heating chamber (101) and includes a heating element (201). The heating element (201) is disposed inside the heating chamber (101) and includes a heat insulation cover plate (201a). The heat insulation cover plate (201a) is fixed to the surface of the heating chamber (101), and a heating coil (201b) is fixedly connected to the heat insulation cover plate (201a). The heating coil (201b) is located on the surface of the copper wire (102).
2. The nitrogen protection device for the continuous bare copper wire stretching machine as described in claim 1, characterized in that: The heating element (201) also includes a wire (201c), which is fixedly connected to one side of the heat insulation cover (201a) and electrically connected to the input end of the heating coil (201b).
3. The nitrogen protection device for the continuous bare copper wire stretching machine as described in claim 2, characterized in that: The protection component (200) further includes a limiting member (202), which includes a limiting tube (202a). The limiting tube (202a) is fixedly connected to one side of the heating chamber (101). The copper wire (102) slides inside the limiting tube (202a). A gathering tube (202b) is fixed to one side of the limiting tube (202a). The inner wall of the gathering tube (202b) is provided with an inclined surface (202b-1).
4. The nitrogen protection device for the continuous bare copper wire stretching machine as described in claim 3, characterized in that: The limiting member (202) also includes a pulley housing (202c), which is fixedly connected to the surface of the heating chamber (101). The pulley housing (202c) communicates with the heating chamber (101). A limiting wheel (202d) is rotatably connected inside the pulley housing (202c). The surface of the limiting wheel (202d) is provided with a groove (202d-1). There are two limiting wheels (202d).
5. The nitrogen protection device for the continuous bare copper wire stretching machine as described in claim 4, characterized in that: The protective component (200) also includes an isolation element (203), including an isolation plate (203a), which is fixed inside the heating chamber (101).
6. The nitrogen protection device for the continuous bare copper wire stretching machine as described in claim 5, characterized in that: A straight air pipe (203b) is provided on one side of the isolation plate (203a), the straight air pipe (203b) is fixed to one side of the isolation plate (203a), a copper wire pipe (203c) is also fixed on one side of the isolation plate (203a), and a curved air pipe (203d) is fixedly connected to the inner wall of the heating chamber (101).
7. The nitrogen protection device for the continuous bare copper wire stretching machine as described in claim 5 or 6, characterized in that: The isolation component (203) also includes a fixing frame (203e) provided on the other side of the isolation plate (203a), a rotating shaft (203f) is fixedly connected to the surface of the fixing frame (203e), and a wind baffle (203g) is rotatably connected to the surface of the rotating shaft (203f).
8. The nitrogen protection device for the continuous bare copper wire stretching machine as described in claim 7, characterized in that: The protective component (200) also includes an inflation component (204) disposed on one side of the heating chamber (101), including a U-shaped tube (204a). The U-shaped tube (204a) is disposed on one side of the heating chamber (101), and an insertion tube (204b) is fixedly connected to one side of the U-shaped tube (204a). A housing (204c) is fixedly connected to one side of the heating chamber (101), and the insertion tube (204b) is inserted into the housing (204c).
9. The nitrogen protection device for the continuous bare copper wire stretching machine as described in claim 8, characterized in that: The inflation component (204) also includes a connecting pipe (204d), one side of which is fixedly connected to one side of the U-shaped pipe (204a).
10. The nitrogen protection device for the continuous bare copper wire stretching machine as described in claim 9, characterized in that: The heating chamber (101) is also provided with the connecting pipe (204d) on both sides. The connecting pipe (204d) on one side of the converging pipe (202b) is used for air intake, and the connecting pipe (204d) on the other side of the heating chamber (101) is used for air exhaust.