Structure for preventing oxidation of upper-layer copper-clad steel wire in heat treatment furnace

Abstract

A structure for preventing an upper-layer copper-clad steel wire in a heat treatment furnace from being oxidized comprises the heat treatment furnace, a trolley is arranged at the bottom of the heat treatment furnace, multiple layers of supporting plates are connected to the upper portion of the trolley through supporting columns, an air inlet pipe is connected to the middle of the supporting plate on the uppermost layer, a telescopic pipe is connected to the upper end of the heat treatment furnace, and a high-pressure hose is connected to one end of the telescopic pipe. A sealing sleeve is installed in the pipe opening in the upper end of the air inlet pipe, a sealing ring is arranged in the sealing sleeve and connected with the inserting end of the telescopic pipe in a sealed mode, a connecting hole is machined in the middle of the uppermost supporting plate, and a pipe opening in the lower end of the air inlet pipe is inserted into the connecting hole. Air outlets are formed in the periphery of a pipe opening in the lower end of the air inlet pipe, and an air inlet groove is formed in the surface of the uppermost supporting plate and connected with the air outlets. The protective gas is introduced into the upper layer of the heat treatment furnace, so that the copper-clad steel wires on the upper layer are prevented from being oxidized, and the product quality is ensured.

Description

Technical Field

[0001] This utility model relates to the field of wire processing technology, specifically to a structure for preventing oxidation of upper copper-clad steel wire in a heat treatment furnace. Background Technology

[0002] To meet the hardness requirements, the leads used in electronic components generally need to undergo heat treatment. The copper-clad steel wire is placed on a heat treatment trolley and sent into the furnace for heat treatment. As the temperature rises, the airflow in the furnace flows upward, and oxygen concentrates in the upper layer of the furnace. This exposes the upper copper-clad steel wire to the flowing oxygen, making oxidation more likely and affecting product quality. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a structure for preventing oxidation of upper copper-clad steel wire in a heat treatment furnace, addressing the shortcomings of the prior art.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A structure for preventing oxidation of upper copper-clad steel wire in a heat treatment furnace includes the furnace, a trolley at the bottom, and multiple support plates connected above the trolley via support columns. An air inlet pipe is connected to the middle of the uppermost support plate. A telescopic pipe that can move up and down is connected to the upper end of the furnace. One end of the telescopic pipe is connected to a high-pressure hose, and the other end, after extending out, is inserted into the upper end of the air inlet pipe. A sealing sleeve is installed inside the upper end of the air inlet pipe, and a sealing ring is installed inside the sealing sleeve to seal the insertion end of the telescopic pipe. A connecting hole is machined in the middle of the uppermost support plate, and the lower end of the air inlet pipe is inserted into the connecting hole. An air outlet is machined around the lower end of the air inlet pipe. An air inlet groove is machined on the surface of the uppermost support plate, connecting the air inlet groove to the air outlet. A baffle is installed on the surface of the air inlet groove, and air outlet holes are evenly distributed on the surface of the baffle.

[0006] Furthermore, the support column is surrounded by reinforcing bars.

[0007] Furthermore, the support column is a solid column, and the air intake pipe is a hollow round pipe.

[0008] Furthermore, a positioning cover with an opening at one end is installed on the top plate of the heat treatment furnace.

[0009] Furthermore, the heat treatment furnace has an installation hole at the top, a positioning sleeve is connected inside the installation hole, a positioning hole is machined in the middle of the positioning sleeve, a telescopic tube is inserted into the positioning hole, guide grooves are machined on both sides of the positioning hole, guide blocks are machined on both sides of the telescopic tube, the guide blocks slide along the guide grooves, and a fixing groove is reserved between the bottom of the positioning sleeve and the bottom of the installation hole, the height of the fixing groove is sufficient to accommodate the guide blocks.

[0010] Furthermore, a "T" groove is machined inside the sealing sleeve, and a "T" connector is machined on the outer ring of the sealing ring. The "T" connector is inserted into the "T" groove. A sealing groove is machined on the side of the insertion end of the telescopic tube, and the inner ring of the sealing ring is inserted into the sealing groove.

[0011] Furthermore, the air intake groove has bosses on both sides, and threaded holes are machined on the bosses. The baffle has connecting holes on both sides, and the baffle is set on the bosses. The connecting holes are connected to the threaded holes by countersunk screws.

[0012] Furthermore, the uppermost support plate is machined with crisscrossing air intake slots.

[0013] Compared with the prior art, the present invention provides a structure to prevent oxidation of the upper copper-clad steel wire in a heat treatment furnace by introducing protective gas into the upper layer of the heat treatment furnace, thereby preventing oxidation of the upper copper-clad steel wire and ensuring product quality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0016] Figure 3 yes Figure 1 Enlarged view of point B in the middle;

[0017] Figure 4 yes Figure 1 Enlarged view of point C in the middle;

[0018] Figure 5 This is a schematic diagram of the structure of the surface of the uppermost support plate of this utility model;

[0019] Among them, 1. heat treatment furnace, 2. trolley, 3. support column, 4. support plate, 5. air inlet pipe, 6. telescopic pipe, 7. high pressure hose, 8. rib, 9. sealing sleeve, 10. sealing ring, 11. positioning sleeve, 12. guide groove, 13. guide block, 14. fixing groove, 15. "T" joint, 16. sealing groove, 17. air outlet, 18. air inlet groove, 19. baffle, 20. air outlet hole, 21. positioning cover. Detailed Implementation

[0020] The technical solutions in the embodiments of this utility model will be clearly and completely described below.

[0021] like Figures 1 to 5As shown, a structure for preventing oxidation of upper copper-clad steel wire in a heat treatment furnace includes a heat treatment furnace 1. A trolley 2 that can move back and forth is provided at the bottom of the heat treatment furnace 1. Multiple support plates 4 are connected above the trolley 2 by support columns 3. An air inlet pipe 5 is connected in the middle of the uppermost support plate 4. A telescopic pipe 6 that can move up and down is connected to the upper end of the heat treatment furnace 1. One end of the telescopic pipe 6 is connected to a high-pressure hose 7, and the other end is inserted into the upper end of the air inlet pipe 5 after it extends out.

[0022] In this embodiment, the support column 3 is a solid column, and the air intake pipe 5 is a hollow round pipe. Multiple sections of solid columns and hollow round pipes with the same outer diameter are connected to form a column and then welded onto the trolley. The support plate 4 is fitted onto the assembled column. Ribs 8 are connected around the support column 4, and the ribs 8 are welded to the support plate 4 to provide support.

[0023] A sealing sleeve 9 is installed inside the inlet of the upper end of the air intake pipe 5. A sealing ring 10 is provided inside the sealing sleeve 9 and is sealed to the insertion end of the telescopic pipe 6. In this embodiment, an installation hole is machined at the upper end of the heat treatment furnace 1, and a positioning sleeve 11 is connected inside the installation hole. The positioning sleeve 11 is fixed to the heat treatment furnace 1 on both sides by screws. A positioning hole is machined in the middle of the positioning sleeve 11. The telescopic pipe 6 is inserted into the positioning hole. Guide grooves 12 are machined on both sides of the positioning hole. Guide blocks 13 are machined on both sides of the tube body of the telescopic pipe 6. A fixing groove 14 is reserved between the bottom of the positioning sleeve 11 and the bottom of the installation hole. The height of the fixing groove 14 is just enough to accommodate the guide block 13. When the telescopic pipe 6 extends downward and is inserted... When the guide block 13 is inserted into the upper end of the intake pipe 5, it slides along the guide groove 12. After passing through the guide groove 12, the guide block 13 rotates, causing the guide block 13 to be misaligned with the guide groove 12. The guide block 13 is locked in the fixed seat 14, fixing the telescopic pipe 6. A threaded connection hole is provided in the upper end of the intake pipe 5. The outer side of the sealing sleeve 9 is threadedly connected to the threaded connection hole. A "T" groove is machined in the sealing sleeve 9. A "T" joint 15 is machined on the outer ring of the sealing ring 10. The "T" joint 15 is locked into the "T" groove. A sealing groove 16 is machined on the side of the insertion end of the telescopic pipe 6. When the telescopic pipe 6 is inserted into the intake pipe 5, the inner ring of the sealing ring 10 is locked into the sealing groove.

[0024] The uppermost support plate 4 has a connecting hole in the middle. The lower end of the air inlet pipe 5 is inserted into the connecting hole. An air outlet 17 is machined around the lower end of the air inlet pipe 5. An air inlet groove 18 is machined on the surface of the uppermost support plate 4. The air inlet groove 18 is connected to the air outlet 17. A baffle 19 is installed on the surface of the air inlet groove 18. Air outlet holes 20 are evenly distributed on the surface of the baffle 19.

[0025] In this embodiment, the support plate 4 is a square plate. The uppermost support plate 4 has crisscrossing air intake grooves 18. One end of the air intake groove 18 is connected to the air outlet 17. The two sides of the air intake groove 18 are machined with bosses and threaded holes. The two sides of the baffle 19 are machined with connecting holes. The baffle 19 is set on the bosses and the connecting holes are connected to the threaded holes by countersunk screws to cover the air intake groove 18.

[0026] A positioning cover 21 with one end open is installed on the top plate of the heat treatment furnace 1. During heat treatment, copper-clad steel wire is placed on the trolley 2 and the support plate 4. The trolley 2 is pushed into the heat treatment furnace 1, and the upper air inlet pipe 5 is locked in the positioning cover 21. The telescopic pipe is inserted into the upper end of the air inlet pipe 5, and nitrogen is introduced into the air inlet pipe 5 through the high-pressure hose 7. The nitrogen enters the air inlet groove 18 along the air outlet 17 and is then evenly discharged through the air outlet 20. This protects the upper copper-clad steel wire during the heat treatment heating stage.

[0027] This utility model is not limited to the embodiments described. Those skilled in the art can still make some modifications or changes without departing from the spirit and scope of this utility model. Therefore, the scope of protection of this utility model shall be determined by the scope defined in the claims.

Claims

1. A structure for preventing oxidation of upper copper-clad steel wire in a heat treatment furnace, comprising a heat treatment furnace, wherein a trolley is provided at the bottom of the heat treatment furnace, characterized in that: The trolley is supported by multiple layers of support plates connected by support columns. An air inlet pipe is connected to the middle of the uppermost support plate. A telescopic pipe that can move up and down is connected to the upper end of the heat treatment furnace. One end of the telescopic pipe is connected to a high-pressure hose, and the other end is inserted into the upper end of the air inlet pipe after extending out. A sealing sleeve is installed inside the upper end of the air inlet pipe, and a sealing ring is provided inside the sealing sleeve to seal with the inserted end of the telescopic pipe. A connecting hole is machined in the middle of the uppermost support plate, and the lower end of the air inlet pipe is inserted into the connecting hole. An air outlet is machined around the lower end of the air inlet pipe. An air inlet groove is machined on the surface of the uppermost support plate, and the air inlet groove is connected to the air outlet. A baffle is installed on the surface of the air inlet groove, and air outlet holes are evenly distributed on the surface of the baffle.

2. The structure for preventing oxidation of upper copper-clad steel wire in a heat treatment furnace according to claim 1, characterized in that: The support column is surrounded by reinforcing bars.

3. The structure for preventing oxidation of upper copper-clad steel wire in a heat treatment furnace according to claim 1, characterized in that: The support column is a solid column, and the air intake pipe is a hollow round pipe.

4. The structure for preventing oxidation of upper copper-clad steel wire in a heat treatment furnace according to claim 1, characterized in that: A positioning cover with an opening at one end is installed on the top plate of the heat treatment furnace.

5. The structure for preventing oxidation of upper copper-clad steel wire in a heat treatment furnace according to claim 1, characterized in that: The heat treatment furnace has an installation hole at the top, and a positioning sleeve is connected inside the installation hole. A positioning hole is machined in the middle of the positioning sleeve. A telescopic tube is inserted into the positioning hole. Guide grooves are machined on both sides of the positioning hole. Guide blocks are machined on both sides of the telescopic tube. The guide blocks slide along the guide grooves. A fixing groove is reserved between the bottom of the positioning sleeve and the bottom of the installation hole. The height of the fixing groove is sufficient to accommodate the guide blocks.

6. The structure for preventing oxidation of upper copper-clad steel wire in a heat treatment furnace according to claim 1, characterized in that: The sealing sleeve has a T-shaped groove machined inside, and the outer ring of the sealing ring has a T-shaped connector machined on it. The T-shaped connector is inserted into the T-shaped groove. The side of the insertion end of the telescopic tube has a sealing groove machined on it, and the inner ring of the sealing ring is inserted into the sealing groove.

7. The structure for preventing oxidation of upper copper-clad steel wire in a heat treatment furnace according to claim 1, characterized in that: The air intake slot has bosses on both sides, and threaded holes are machined on the bosses. The baffle has connecting holes on both sides, and the baffle is set on the bosses. The connecting holes are connected to the threaded holes by countersunk screws.

8. The structure for preventing oxidation of upper copper-clad steel wire in a heat treatment furnace according to claim 1, characterized in that: The uppermost support plate has crisscrossing air intake slots.

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