Heat treatment device of finished wire for rivet nut production

Abstract

The utility model discloses a heat treatment device of a finished wire for rivet nut production, which comprises a furnace body, a support frame, an air supply pipe and an exhaust pipe, a furnace door is arranged on one side of the furnace body in a matched manner, and a first heating component is arranged in the furnace body; the supporting frame is installed in the middle of the furnace body through a rotating table to rotate, the rotating table is driven by a first driving mechanism to rotate, and the upper end of the supporting frame extends towards the periphery to be provided with at least two hanging rods. One end of the gas supply pipe is connected with the furnace body, the other end of the gas supply pipe is connected with the nitrogen tank and the hydrogen tank through a nitrogen pipe and a hydrogen pipe respectively, the nitrogen pipe and the hydrogen pipe are provided with a first flow valve and a second flow valve respectively, and the gas supply pipe is provided with a gas pump and a second heating assembly; one end of the exhaust pipe is connected with the furnace body, the wire rod of the steel wire is hung on the hanging rods, and only one coil of wire rod of the steel wire is hung on each hanging rod, so that multiple coils of wire rod are separated, stacking and extrusion are reduced, the heating area is increased, and the heating and cooling uniformity is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat treatment technical field, concretely relates to a kind of finished wire's heat treatment device for riveting nut production. BACKGROUND

[0002] Nut is usually prepared by cutting steel wire into appropriate length and then tapping thread in the center. Steel wire is usually coiled into a ring-shaped wire coil for increasing the length of steel wire in a limited area.

[0003] In the production of nuts, the steel wire raw material needs to be heat treated. In the prior art, the wire coil is usually stacked directly in the heat treatment furnace, which causes the steel wire in the inner part of the stack to heat slowly, resulting in uneven heating and cooling inside and outside, and uneven heat treatment effect. SUMMARY

[0004] To solve the above problems in the prior art, the utility model provides a kind of finished wire's heat treatment device for riveting nut production.

[0005] To achieve the above technical effects, the utility model adopts the following scheme:

[0006] A kind of finished wire's heat treatment device for riveting nut production, comprising:

[0007] Furnace body, the furnace body is matched with furnace door on one side, and the furnace body is provided with first heating assembly;

[0008] Support frame, the support frame is installed in the middle of furnace body by rotating table, and the rotating table is driven to rotate by first driving mechanism, and the upper end of the support frame is provided with at least two hanging rods which are extended towards the periphery;

[0009] Gas supply pipe, one end of the gas supply pipe is connected to the furnace body, and the other end of the gas supply pipe is connected to nitrogen tank and hydrogen tank through nitrogen pipe and hydrogen pipe respectively, first flow valve and second flow valve are arranged on the nitrogen pipe and hydrogen pipe respectively, and gas pump and second heating assembly are arranged on the gas supply pipe;

[0010] Exhaust pipe, one end of the exhaust pipe is connected to the furnace body.

[0011] Preferably, the outer end of the hanging rod is upwardly curved.

[0012] Preferably, the first driving mechanism includes a first motor, the rotating table is rotatably installed at the bottom of the furnace body, the first motor is installed at the lower end of the furnace body, and the output end of the first motor is fixedly connected to the rotating center of the rotating table.

[0013] Preferably, the first heating assembly comprises a plurality of electric heating pipes installed on the inner wall of the furnace body, and the length of the electric heating pipes is arranged vertically.

[0014] Preferably, the second heating assembly comprises a plurality of electric heating wires arranged on the gas supply pipe.

[0015] Preferably, the furnace body is provided with a first temperature sensor, and the gas supply pipe is provided with a second temperature sensor.

[0016] Preferably, the gas supply pipe is provided with a preheating assembly, the preheating assembly is located away from the furnace body in the direction of the second heating assembly, the preheating assembly comprises a preheating box arranged in the middle of the gas supply pipe, the preheating box is provided with independent air inlet chambers and air outlet chambers at the left and right ends, respectively, the air inlet chambers and the air outlet chambers are communicated with the gas supply pipe at the left and right ends, respectively, the air inlet chambers and the air outlet chambers are communicated through a plurality of heat exchange pipes penetrating through the preheating box, the preheating box is provided with an air inlet pipe and an air outlet pipe at the upper and lower ends, respectively, and the other end of the air inlet pipe and the air outlet pipe is connected.

[0017] Compared with the prior art, the beneficial effects are:

[0018] The utility model discloses simple structure, convenient to use, open furnace door, and the wire rod of steel wire's wire rod is sent to the furnace body, and is hung on the suspension rod, and only hangs a roll wire rod of steel wire on each suspension rod, thereby separating multiple rolls of wire rod, reducing stacking and extrusion, thereby increasing the heating area, improving the uniformity of heating and cooling. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the cross section schematic diagram of the utility model.

[0020] Mark: 1, furnace body;2, furnace door;3, rotating table;4, support frame;5, suspension rod;6, first motor;7, electric heating pipe;8, first temperature sensor;9, gas supply pipe;10, electric heating wire;11, second temperature sensor;12, air pump;13, first flow valve;14, nitrogen tank;15, second flow valve;16, hydrogen tank;17, preheating box;18, air outlet chamber;19, air inlet chamber;20, heat exchange pipe;21, wire rod. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments.

[0022] A kind of hot treatment device of finished wire for riveting nut production, comprising: furnace body 1, support frame 4, gas supply pipe 9 and exhaust pipe.

[0023] One side of the furnace body 1 is matched with a furnace door 2, and the furnace body 1 is provided with a first heating assembly, and the furnace body 1 is heated by the heating assembly.

[0024] The support frame 4 is installed on the middle part of the furnace body 1 through the rotating table 3, the rotating table 3 is driven to rotate through the first driving mechanism, and the upper end of the support frame 4 extends outward and is provided with at least two hanging rods 5, and the hanging rods 5 are used for hanging the wire rod coil 21.

[0025] One end of the gas supply pipe 9 is connected to the furnace body 1, and the gas supply pipe 9 is connected to the lower end of the furnace body 1, the other end of the gas supply pipe 9 is connected to the nitrogen tank 14 and the hydrogen tank 16 through the nitrogen pipe and the hydrogen pipe respectively, the nitrogen pipe and the hydrogen pipe are respectively provided with the first flow valve 13 and the second flow valve 15, and the gas supply pipe 9 is provided with the gas pump 12 and the second heating assembly, the single nitrogen or the mixed gas of nitrogen and hydrogen is sent into the furnace body 1 through the gas supply pipe 9, the proportion of nitrogen and hydrogen is adjusted through the low flow valve and the second flow valve 15, and the gas in the gas supply pipe 9 is heated to the same temperature as the furnace body 1 through the second heating assembly and then sent into the furnace body 1, so that the temperature distribution in the furnace body 1 is avoided to be uneven due to the sent gas.

[0026] One end of the exhaust pipe is connected to the furnace body 1, and the exhaust pipe is connected to the upper end of the furnace body 1, and the exhaust pipe is connected to the upper end of the furnace body 1.

[0027] The wire rod coil 21 is sent into the furnace body 1 through the forklift and hung on the hanging rod 5, when hanging, the rotating table 3 is rotated to change the direction of the support frame 4, the wire rod coil 21 is hung on each hanging rod 5, preheating and heating are performed through the first heating assembly, the first flow valve 13 and the second flow valve 15 are opened, nitrogen and hydrogen are supplied, and the nitrogen and hydrogen are sent into the furnace body 1 through the gas supply pipe 9 and heated through the second heating assembly.

[0028] Only one wire rod coil 21 is hung on each hanging rod 5, so that the multiple wire rod coils 21 are separated, the stacking and extrusion are reduced, the heating area is increased, and in the heating process, the support frame 4 drives the wire rod coil 21 to rotate, and the uniformity of heating and cooling is improved.

[0029] Meanwhile, the gas is continuously sent into the furnace body 1 through the gas supply pipe 9 and discharged from the exhaust pipe, and the high-temperature gas in the furnace body 1 is driven to flow, the high temperature is more easily entered into the inside of the wire rod coil 21, and the uniformity of heating is further improved.

[0030] Preferably, the outer end of the hanging rod 5 is upwardly curved to form a limiting position, so as to avoid the wire rod coil 21 hung on the hanging rod 5 from falling off.

[0031] Preferably, the first driving mechanism comprises a first motor 6, the rotating table 3 is rotatably arranged on the bottom of the furnace body 1, the first motor 6 is arranged on the lower end of the furnace body 1, the output end of the first motor 6 is fixedly connected with the rotating center of the rotating table 3, and the first motor 6 drives the rotating table 3 to rotate, thereby driving the supporting frame 4 to rotate.

[0032] Preferably, the first heating assembly comprises a plurality of electric heating pipes 7 arranged on the inner wall of the furnace body 1, and the length of the electric heating pipe 7 is arranged vertically.

[0033] Preferably, the second heating assembly comprises a plurality of electric heating wires 10 arranged on the gas supply pipe 9.

[0034] Preferably, the furnace body 1 is provided with a first temperature sensor 8, and the gas supply pipe 9 is provided with a second temperature sensor 11.

[0035] Preferably, the gas supply pipe 9 is provided with a preheating assembly, the preheating assembly is located away from the furnace body 1 in the direction of the second heating assembly, the preheating assembly comprises a preheating box 17 located in the middle of the gas supply pipe 9, the left and right ends of the preheating box 17 are respectively provided with independent air inlet chambers 19 and air outlet chambers 18, the air inlet chambers 19 and the air outlet chambers 18 are respectively communicated with the gas supply pipes 9 at the left and right ends, the air inlet chambers 19 and the air outlet chambers 18 are communicated through a plurality of heat exchange pipes 20 penetrating through the preheating box 17, the upper and lower ends of the preheating box 17 are respectively provided with an air inlet pipe and an air outlet pipe, and the other end of the air inlet pipe and the air outlet pipe is connected.

[0036] The high-temperature gas discharged from the air outlet pipe is directly discharged, which causes waste of heat, the high-temperature gas is sent into the preheating box 17, and the gas in the gas supply pipe 9 passes through the heat exchange pipes 20 and exchanges heat with the high-temperature gas in the preheating box 17, so that preheating is performed.

[0037] In the description of the utility model, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the utility model product is used, or the orientation or positional relationship commonly understood by those skilled in the art, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0039] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

Claims

1. A heat treatment apparatus for finished wire used in the production of rivet nuts, characterized in that, include: A furnace body (1) is provided with a furnace door (2) on one side of the furnace body (1), and a first heating component is provided inside the furnace body (1); The support frame (4) is installed in the middle of the furnace body (1) and rotates via a rotating table (3). The rotating table (3) is driven to rotate by a first driving mechanism. The upper end of the support frame (4) extends outwards to the four sides and is provided with at least two suspension rods (5). Gas supply pipe (9), one end of which is connected to furnace body (1), and the other end of which is connected to nitrogen tank (14) and hydrogen tank (16) respectively through nitrogen pipe and hydrogen pipe. A first flow valve (13) and a second flow valve (15) are respectively provided on the nitrogen pipe and the hydrogen pipe. A gas pump (12) and a second heating component are provided on the gas supply pipe (9). An exhaust pipe, one end of which is connected to the furnace body (1).

2. The heat treatment apparatus for finished wire used in rivet nut production as described in claim 1, characterized in that, The outer end of the suspension rod (5) is tilted upwards.

3. The heat treatment apparatus for finished wire used in rivet nut production as described in claim 1, characterized in that, The first driving mechanism includes a first motor (6), the rotary table (3) is rotatably mounted on the bottom of the furnace body (1), the first motor (6) is mounted on the lower end of the furnace body (1), and the output end of the first motor (6) is fixedly connected to the rotation center of the rotary table (3).

4. The heat treatment apparatus for finished wire used in rivet nut production as described in claim 1, characterized in that, The first heating component includes several electric heating tubes (7) installed on the inner wall of the furnace body (1), and the length of the electric heating tubes (7) is vertically arranged.

5. The heat treatment apparatus for finished wire used in rivet nut production as described in claim 1, characterized in that, The second heating component includes a plurality of heating wires (10) disposed on the gas supply pipe (9).

6. The heat treatment apparatus for finished wire used in rivet nut production as described in claim 1, characterized in that, The furnace body (1) is equipped with a first temperature sensor (8), and the gas supply pipe (9) is equipped with a second temperature sensor (11).

7. The heat treatment apparatus for finished wire used in rivet nut production as described in claim 1, characterized in that, The gas supply pipe (9) is provided with a preheating component. The preheating component is located in the direction away from the furnace body (1) of the second heating component. The preheating component includes a preheating box (17) located in the middle of the gas supply pipe (9). The left and right ends of the preheating box (17) are respectively provided with independent air inlet chamber (19) and air outlet chamber (18). The air inlet chamber (19) and air outlet chamber (18) are respectively connected to the gas supply pipe (9) at the left and right ends. The air inlet chamber (19) and air outlet chamber (18) are connected through several heat exchange pipes (20) passing through the preheating box (17). The upper and lower ends of the preheating box (17) are respectively provided with air inlet pipe and air outlet pipe. The other end of the air inlet pipe is connected to the exhaust pipe.

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