Tungsten filament drying and preheating mechanism

Abstract

The utility model relates to the technical field of tungsten filament drawing processing, and discloses a tungsten filament drying and preheating mechanism which comprises a box body with an opening at the upper end, a cover body is arranged at the opening of the box body, and a plurality of heating components distributed in parallel are arranged in the box body; the heating assembly comprises a heat conduction pipe and a plurality of electric heating pipes arranged in the heat conduction pipe, the cross section of the heat conduction pipe is of a C-shaped structure, a wire inlet notch is formed in the upper side of the heat conduction pipe, a C-shaped cavity penetrating through the two ends is formed in the heat conduction pipe, end covers are arranged at the two ends of the C-shaped cavity, the electric heating pipes are arranged in the C-shaped cavity, and the two ends of each electric heating pipe are connected with the end covers respectively; and avoiding gaps are formed in positions, corresponding to the two ends of the heat conduction pipe, on the box body. The heating device has the advantages of being convenient to use and stable and even in heating.

Description

Technical Field

[0001] This utility model relates to the field of tungsten wire drawing technology, and in particular to a tungsten wire drying and preheating mechanism. Background Technology

[0002] Tungsten wire drawing equipment is used to draw coarse tungsten wires (tungsten wire raw materials) into fine tungsten wires of the required diameter through a drawing die. Before passing through the drawing die, the tungsten wires need to pass through graphite emulsion. When the tungsten wires pass through the graphite emulsion (a suspension of graphite powder), the surface of the tungsten wires is coated with graphite emulsion. After passing through the drying equipment, the moisture in the graphite emulsion evaporates, and the graphite powder is evenly adhered to the surface of the tungsten wires. When passing through the drawing die again, the graphite powder acts as a lubricant. In the existing technology, the tungsten wires, after being soaked in graphite emulsion, pass directly through the gap between two heating plates. All the tungsten wires are simultaneously heated and dried through the heating gap, so that the graphite emulsion on the surface of the tungsten wires is dried. Because multiple tungsten wires are dried simultaneously, the temperature varies in different areas within the heating gap, resulting in uneven drying, which in turn affects the subsequent drawing quality. Utility Model Content

[0003] In order to solve the above-mentioned problems in the prior art, this utility model provides a tungsten wire preheating and drying mechanism that is easy to use and provides more stable and uniform heating.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A tungsten filament preheating and drying mechanism includes a box body with an opening at the top, a cover at the opening of the box body, and a plurality of parallel heating components disposed inside the box body. Each heating component includes a heat-conducting pipe and a plurality of electric heating tubes disposed inside the heat-conducting pipe. The heat-conducting pipe has a C-shaped cross-section and a wire inlet notch on its upper side. The heat-conducting pipe has a C-shaped cavity extending through both ends, and end caps are provided at both ends of the C-shaped cavity. The electric heating tubes are disposed inside the C-shaped cavity and are connected to the end caps at both ends. The box body has clearance notches corresponding to the two ends of the heat-conducting pipe.

[0006] Open the cover and insert the tungsten wire into the heat pipe through the wire inlet. The tungsten wire is located in the center of the heat pipe. Cover the cover and heat it with the heating element to dry the graphite emulsion on the surface of the tungsten wire. Each tungsten wire is heated by an independent heating element, resulting in more uniform and stable heating.

[0007] Preferably, the housing is provided with a lower heat insulation layer, and the top surface of the lower heat insulation layer is provided with several lower arc-shaped grooves for installing heat-conducting pipes. The lower heat insulation layer serves to insulate against heat, reduce heat loss from the heat-conducting pipes, and improve thermal energy utilization.

[0008] Preferably, the bottom of the lower insulation layer is provided with an insulation plate, and a support frame is provided between the bottom surface of the insulation plate and the bottom surface of the box body, so that an insulation gap is formed between the insulation plate and the bottom surface of the box body. The insulation gap further increases the insulation performance and reduces the heat loss of the heating components.

[0009] Preferably, the cover is hinged to the box body, and the cover body has an upper heat insulation layer. The lower side of the upper heat insulation layer has several upper arc-shaped grooves corresponding to the lower arc-shaped grooves. When the cover is placed on the box body, the upper arc-shaped grooves engage with the outside of the heat-conducting pipe and close the wire inlet notch. The hinged connection between the cover and the box body makes opening and closing more convenient, and the upper heat insulation layer provides heat insulation, reducing heat loss from the cover.

[0010] Preferably, the heat pipe has connectors at both ends of its lower side, each connector having a connecting post. The lower end of the connecting post is threaded, and the lower end of the connecting post passes through the heat insulation plate and is locked in place by a nut. The connecting post is used for the installation and positioning of the heat pipe.

[0011] Preferably, the heat pipe is made of ceramic. Ceramic pipes have stable physical properties, good thermal conductivity, heat resistance, and insulation.

[0012] Preferably, the box body is provided with a first handle on its side, and the lid body is provided with a second handle on its side.

[0013] Preferably, the bottom of the housing is provided with connecting seats at both ends, and the connecting seats are provided with downwardly extending connecting ears at both ends. The bottom surface of the connecting ears extends beyond the bottom surface of the housing, and the connecting ears are provided with connecting holes. The connecting seats facilitate the installation of the housing, and after the connecting ears are connected to the frame, the bottom surface of the housing does not contact the frame, thereby reducing heat transfer to the frame.

[0014] Therefore, this invention has the advantages of being easy to use and providing stable and uniform heating. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of one structure of the present utility model.

[0016] Figure 2 for Figure 1 Another perspective view.

[0017] Figure 3 for Figure 1 The right view.

[0018] Figure 4 for Figure 3 Sectional view at point AA.

[0019] Figure 5 This is a schematic diagram showing the lid in the open state.

[0020] Figure 6 This is a schematic diagram of the heating component installation.

[0021] Figure 7 This is a schematic diagram of the heating component.

[0022] Figure 8 This is an exploded view of the heating assembly. Detailed Implementation

[0023] To make the technical problem to be solved, the technical solution, and the beneficial technical effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and several exemplary embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the scope of protection of the present utility model.

[0024] It should be understood that the terms "first," "second," etc., used herein are for descriptive purposes only and should not be construed as indicating or implying relative importance, nor should they be construed as implicitly specifying the number of technical features indicated. Features specified as "first" or "second" may expressly or implicitly indicate that at least one of those features is included.

[0025] like Figures 1-8 The tungsten filament preheating and drying mechanism shown includes a box body 1 with an open top, a cover 2 at the opening of the box body 1, and several parallel heating components 3 inside the box body 1. Each heating component 3 includes a heat-conducting pipe 30 and several electric heating tubes 31 disposed within the heat-conducting pipe 30. The heat-conducting pipe 30 has a C-shaped cross-section, a wire inlet notch 300 on its upper side, and a C-shaped cavity 301 penetrating both ends within the heat-conducting pipe 30. End caps 32 are provided at both ends of the C-shaped cavity 301. The electric heating tubes 31 are disposed within the C-shaped cavity 301 and connected to the end caps 32 at both ends. Alternation notches 10 are provided on the box body 1 corresponding to the ends of the heat-conducting pipe 30. In this embodiment, ten sets of heating components are provided, enabling simultaneous heating and drying of ten tungsten filaments. In some embodiments, alternative notches are also provided on the cover corresponding to the ends of the heat-conducting pipe.

[0026] like Figure 4 , Figure 7 and Figure 8 As shown, the box body 1 has a lower heat insulation layer 4. The top surface of the lower heat insulation layer 4 has several lower arc-shaped grooves 40 for installing heat conduction pipes 30. The bottom of the lower heat insulation layer 4 has a heat insulation plate 5. A support frame 50 is provided between the bottom surface of the heat insulation plate 5 and the bottom surface of the box body 1, so that a heat insulation gap 51 is formed between the heat insulation plate 5 and the bottom surface of the box body 1. Both ends of the lower side of the heat conduction pipe 30 are provided with connectors 33. Connecting posts 34 are provided on the connectors 33. The lower end of the connecting post 34 is provided with threads 340. The lower end of the connecting post 34 passes through the heat insulation plate 5 and is locked by a nut 35.

[0027] The cover 2 is hinged to the box 1. The cover 2 is provided with an upper heat insulation layer 21. The lower side of the upper heat insulation layer 21 is provided with several upper arc grooves 210 corresponding to the lower arc grooves 40. When the cover 2 is placed on the box 1, the upper arc grooves 210 are engaged with the outside of the heat conduction pipe 30 and close the wire inlet notch 300.

[0028] In this embodiment, the heat pipe 30 is a ceramic pipe, and the upper and lower insulation layers are made of asbestos insulation boards.

[0029] like Figure 1 and Figure 2 As shown, the side of the box body 1 is provided with a first handle 11, and the side of the cover body 2 is provided with a second handle 20; the bottom of the box body 1 is provided with connecting seats 6 at both ends, and the two ends of the connecting seats 6 are provided with connecting ears 60 extending downward, the bottom surface of the connecting ears 60 extends beyond the bottom surface of the box body 1, and the connecting ears 60 are provided with connecting holes 61.

[0030] Referring to the accompanying drawings, the principle of this utility model is as follows: As shown in the figure, first open the cover 2, and insert each tungsten wire 7 into the heat-conducting tube 30 through the wire inlet notch 300. The tungsten wire 7 is approximately positioned at the center of the heat-conducting tube. Then, close the cover 2 and heat the heating tube 31 to dry the graphite emulsion on the surface of the tungsten wire 7. Each tungsten wire is heated by an independent heating component, resulting in more uniform and stable heating. Simultaneously, heat insulation is achieved through the upper insulation layer 20, the lower insulation layer 4, the insulation plate 5, and the insulation gap 51, greatly reducing heat loss from the heating component and improving heat utilization.

[0031] In the description of this utility model, it should be understood that the directions or positional relationships indicated by up, down, left, right, inner end, outer end, one end, and the other end are based on the orientation or positional relationships shown in the accompanying drawings. They are only for the purpose of more clearly describing the technical solution of this utility model, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as a limitation of this utility model.

[0032] Although specific embodiments of the present invention are described in detail herein, they are given for illustrative purposes only and should not be construed as limiting the scope of the present invention. Various substitutions, alterations, and modifications may be conceived without departing from the spirit and scope of the present invention.

Claims

1. A tungsten wire drying and preheating mechanism, characterized in that, The box (1) includes an opening at the top, and a cover (2) is provided at the opening of the box (1). Several parallel heating components (3) are provided inside the box (1). The heating assembly (3) includes a heat-conducting pipe (30) and a plurality of electric heating tubes (31) disposed in the heat-conducting pipe (30). The heat-conducting pipe (30) has a C-shaped cross-section and a wire inlet notch (300) on the upper side. The heat-conducting pipe (30) has a C-shaped cavity (301) that extends through both ends. The two ends of the C-shaped cavity (301) are provided with end caps (32). The electric heating tubes (31) are disposed in the C-shaped cavity (301) and their two ends are respectively connected to the end caps (32). The box body (1) is provided with clearance notches (10) at the two ends corresponding to the heat pipe (30).

2. The tungsten wire drying and preheating mechanism according to claim 1, characterized in that, The box body (1) is provided with a lower heat insulation layer (4), and the top surface of the lower heat insulation layer (4) is provided with a plurality of lower arc-shaped grooves (40) for installing heat-conducting pipes (30).

3. The tungsten wire drying and preheating mechanism according to claim 2, characterized in that, The bottom of the lower insulation layer (4) is provided with an insulation plate (5), and a support frame (50) is provided between the bottom surface of the insulation plate (5) and the bottom surface of the box (1), so that an insulation gap (51) is formed between the insulation plate (5) and the bottom surface of the box (1).

4. A tungsten wire drying and preheating mechanism according to claim 2 or 3, characterized in that, The cover (2) is hinged to the box (1). The cover (2) is provided with an upper heat insulation layer (21). The lower side of the upper heat insulation layer (21) is provided with several upper arc grooves (210) corresponding to the lower arc groove (40). When the cover (2) is placed on the box (1), the upper arc groove (210) is fastened to the outside of the heat-conducting pipe (30) and the wire inlet notch (300) is closed.

5. The tungsten wire drying and preheating mechanism according to claim 3, characterized in that, The heat pipe (30) has connectors (33) at both ends on its lower side. Connectors (34) are provided on the connectors (33). The lower end of the connectors (34) is provided with threads (340). The lower end of the connectors (34) passes through the heat insulation plate (5) and is locked by nuts (35).

6. A tungsten wire drying and preheating mechanism according to claim 1 or 5, characterized in that, The heat pipe (30) is made of ceramic.

7. The tungsten wire drying and preheating mechanism according to claim 4, characterized in that, The box body (1) has a first handle (11) on its side, and the cover body (2) has a second handle (20) on its side.

8. The tungsten wire drying and preheating mechanism according to claim 1, characterized in that, The bottom of the box (1) is provided with connecting seats (6) at both ends. The connecting seats (6) are provided with connecting ears (60) extending downward at both ends. The bottom surface of the connecting ears (60) extends beyond the bottom surface of the box (1). The connecting ears (60) are provided with connecting holes (61).

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