Tungsten filament microwire on-line heating device

Abstract

The utility model relates to the technical field of tungsten filament processing, in particular to a tungsten filament microwire on-line heating device which comprises an independent wire-drawing heating main plate, a lower heating protective cover and an upper heating protective cover, a wire-drawing die frame is arranged between the lower heating protective cover and a wire outlet guide frame, and a wire-drawing die is fixed at one end of the wire-drawing die frame. The two sets of two-way screws installed at the bottom ends of the installation frames can be driven to rotate by rotation of a belt driven by the motor during operation, and when the two-way screws rotate, the two sets of installation frames can be driven to move oppositely through threads of the two-way screws. And the positions between the wheel carriers and the guide wheels at the top ends of the two groups of mounting frames can be changed, so that the heating length of the tungsten filament at the top end of the heating disc can be controlled, the purpose of conveniently controlling the heating length of the tungsten filament by the device is achieved, and the heating efficiency of the tungsten filament can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tungsten wire processing, in particular to an online heating device for a fine tungsten wire. Background Art

[0002] Tungsten filament is primarily used in electric light sources such as incandescent and halogen lamps. Tungsten filaments used as various illuminants in light bulbs are doped with small amounts of potassium, silicon, and aluminum oxides during the smelting process. This type of tungsten filament is called doped tungsten filament. It is primarily used to manufacture filaments and for high-speed cutting of alloy steel. It is also used in optical and chemical instruments. During processing, tungsten filament undergoes a drawing process. It is heated to a specified temperature range before entering the die hole, allowing it to be reduced in diameter and drawn.

[0003] For example, the patent document with publication number CN219966016U discloses a die base heating device and wire drawing equipment, the die base heating device includes: a substrate, a first traction wheel, a second traction wheel, a heating assembly and a diameter-changing die, the first traction wheel is rotatably provided at one end of the substrate; the second traction wheel is rotatably provided at the other end of the substrate, and together with the first traction wheel, stretches and pulls the wire; the heating assembly is provided between the first traction wheel and the second traction wheel; the diameter-changing die is detachably provided on the heating assembly to change the diameter of the wire; however, this prior art still has many shortcomings, such as: lack of the function of extending the heating path of the metal fine wire and expanding the length of the heated metal wire, resulting in the device only being able to heat a small amount of metal fine wire at the same time, and the heating efficiency is relatively low. Utility Model Content

[0004] In view of the problems existing in the prior art, the utility model provides an online heating device for a tungsten fine wire.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: an online heating device for tungsten fine wires, comprising an independent wire drawing heating main plate, a lower heating protective cover, and an upper heating protective cover, wherein the lower heating protective cover is fixed to the front side wall of the independent wire drawing heating main plate, a heating disk is fixed to the back end of the lower heating protective cover, and an inlet guide and an outlet guide are symmetrically arranged on the left and right sides of the lower heating protective cover;

[0006] A movable structure is provided at the top of the heating plate, a wheel frame is installed on the front side wall of the movable structure, one end of the wheel frame is movably connected to a guide wheel, a wire drawing die frame is provided between the lower heating protective cover and the wire outlet guide frame, and a wire drawing die is fixed to one end of the wire drawing die frame.

[0007] Preferably, the movable structure includes a mounting frame, a bidirectional screw, a belt and a motor. The mounting frame is sleeved on the top of the heating plate, and the bottom end of the mounting frame is movably connected with two sets of bidirectional screws. The front end of the bidirectional screw is sleeved with a belt. The motor is fixed on the front side wall inside the lower heating protective cover, and one end of the motor is sleeved with a belt.

[0008] Preferably, the mounting bracket is door-shaped and is slidably mounted on the upper surface of the heating plate.

[0009] Preferably, the upper heating shield is mounted on the top of the lower heating shield, and the upper heating shield and the lower heating shield are arranged to be hingedly connected.

[0010] Preferably, threading openings are provided on the left and right sides of the lower heating protective cover and the upper heating protective cover, and the threading openings of the lower heating protective cover and the upper heating protective cover are square in the assembled state.

[0011] Preferably, the heating plate is fixed at the bottom end of the lower heating protective cover, and the inner cavity of the lower heating protective cover is divided into a front heat dissipation cavity and a rear heat dissipation cavity by the heating plate. A plurality of heat dissipation holes are provided on both sides of the lower heating protective cover.

[0012] Preferably, the inlet guide and the outlet guide are both fixedly mounted on the independent wire drawing heating main plate, and winding wheels are rotatably mounted on the outer ends of the inlet guide and the outlet guide.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] In the utility model, by installing opposite staggered guide wheels mounted on the wheel frame at the top of the heating disk, when the user uses the device to heat the tungsten wire, two sets of rollers are installed at the tungsten wire inlet of the lower heating protective cover to guide the hard-to-contain metal fine wire, which can facilitate the winding of the tungsten wire on the wheel frame and stretch it by the wheel frame, so that the tungsten wire can be left in the heating area of ​​the heating disk for a longer length. Furthermore, by installing two sets of rollers at the tungsten wire outlet of the lower heating protective cover, the hard-to-contain metal fine wire can be guided so that its discharge direction will not be deviated, thereby improving the heating of the tungsten wire. For the purpose of improving efficiency, further, the wheel frame and the guide wheel are installed at one end of the mounting frame, and the two sets of bidirectional screws installed at the bottom end of the mounting frame can be rotated by the belt driven by the motor during operation. When the bidirectional screws rotate, they can drive the positions of the two sets of mounting frames to move in opposite directions through their own threads, and can change the position between the wheel frame and the guide wheel at the top of the two sets of mounting frames, so as to control the length of the tungsten wire heated at the top of the heating plate, thereby achieving the purpose of facilitating the control of the length of the tungsten wire heated by the device, and can effectively improve the efficiency of heating the tungsten wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure from the first perspective of the present invention;

[0017] Figure 2 This is a schematic diagram of the third perspective structure of the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of the upper heating protective cover of the utility model after it is closed;

[0019] Figure 4 This is a schematic diagram of the structure of the utility model after the upper heating protective cover is removed;

[0020] Figure 5 This is a schematic diagram of the three-dimensional structure of the mobile structure of the utility model;

[0021] In the figure: 1. Independent wire drawing heating main plate; 2. Lower heating protective cover; 3. Upper heating protective cover; 4. Heating plate; 5. Moving structure; 501. Mounting frame; 502. Bidirectional screw; 503. Belt; 504. Motor; 6. Wheel frame; 7. Guide wheel; 8. Wire inlet guide frame; 9. Winding wheel; 10. Wire drawing die frame; 11. Wire drawing die; 12. Heat dissipation hole; 13. Wire outlet guide frame. DETAILED DESCRIPTION

[0022] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1

[0023] Tungsten micro-wire online heating device, such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, it includes an independent wire drawing heating main plate 1, a lower heating protective cover 2 and an upper heating protective cover 3. The lower heating protective cover 2 is fixed to the front side wall of the independent wire drawing heating main plate 1, and a heating plate 4 is fixed to the back end of the lower heating protective cover 2.

[0024] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 The wire inlet guide 8 and the wire outlet guide 13 are symmetrically arranged on the left and right directions of the lower heating protective cover 2. The wire inlet guide 8 and the wire outlet guide 13 are fixedly mounted on the independent wire drawing heating main plate 1, and the outer ends of the wire inlet guide 8 and the wire outlet guide 13 are rotatably mounted with a winding wheel 9, which can reel the tungsten wire. A movable structure 5 is provided on the top of the heating disk 4, and a wheel frame 6 is installed on the front side wall of the movable structure 5. One end of the wheel frame 6 is movably connected to a guide wheel 7. A wire drawing die frame 10 is provided between the lower heating protective cover 2 and the wire outlet guide 13, and a wire drawing die 11 is fixed to one end of the wire drawing die frame 10.

[0025] like Figure 1 、 Figure 2 and Figure 3 As shown, the upper heating protective cover 3 is installed on the top of the lower heating protective cover 2, and the upper heating protective cover 3 and the lower heating protective cover 2 are arranged to be hingedly connected. The left and right sides of the lower heating protective cover 2 and the upper heating protective cover 3 are provided with threading holes, and the threading holes of the lower heating protective cover 2 and the upper heating protective cover 3 are square when spliced ​​together.

[0026] When Example 1 is working, the heating disk 4 is first connected to the power supply and preheated. After a period of preheating, the heating disk 4 can reach the preset temperature. By installing two sets of rollers at the tungsten wire inlet of the lower heating protective cover 2, the difficult-to-contain metal fine wire can be guided, and the tungsten wire can be easily passed through the winding wheel 9 of the wire feed guide 8. At this time, the tungsten wire is wound on the set multiple sets of guide wheels 7, and the tungsten wire is stretched by the oppositely installed guide wheels 7. The distance for heating at the top of the heating disk 4 is improved, and the efficiency of heating the tungsten wire is improved. By installing two sets of rollers at the tungsten wire outlet of the lower heating protective cover 2, the tungsten wire can be guided so that its discharge direction will not be offset. The tungsten wire is continuously transported from left to right under the action of external traction, so that continuous online heating and wire drawing processing can be achieved.

[0027] Example 1 Based on Example 1, Figure 1 、 Figure 2 、 Figure 4 and Figure 5 As shown, the movable structure 5 includes a mounting frame 501, a bidirectional screw 502, a belt 503 and a motor 504. The mounting frame 501 is sleeved on the top of the heating plate 4. The mounting frame 501 is door-shaped. The mounting frame 501 is slidably clamped on the upper surface of the heating plate 4. The bottom end of the mounting frame 501 is movably connected with two groups of bidirectional screws 502. The front end of the bidirectional screw 502 is sleeved with a belt 503. The motor 504 is fixed on the front side wall inside the lower heating protective cover 2, and one end of the motor 504 is sleeved with a belt 503.

[0028] When Example 2 is working, the motor 504 can be controlled to be powered on, and the motor 504 can drive the belt 503 to rotate, thereby causing the two sets of bidirectional screws 502 on which the belt 503 is mounted to rotate, and the threads set at both ends of the bidirectional screw 502 can drive the positions of the two sets of mounting frames 501 to move during rotation, thereby changing the distance between the opposing guide wheels 7, so that the device can control the length of the heated tungsten wire when heating the tungsten wire, thereby improving the efficiency of the device in performing online heating of the tungsten wire.

[0029] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An online heating device for tungsten fine wires, comprising an independent wire drawing heating main plate (1), a lower heating protective cover (2) and an upper heating protective cover (3), characterized in that: A lower heating protective cover (2) is fixed to the front side wall of the independent wire drawing heating main plate (1), a heating plate (4) is fixed to the back end of the interior of the lower heating protective cover (2), and an inlet guide frame (8) and an outlet guide frame (13) are symmetrically arranged on the left and right sides of the lower heating protective cover (2); A movable structure (5) is provided at the top of the heating plate (4), a wheel frame (6) is installed on the front side wall of the movable structure (5), one end of the wheel frame (6) is movably connected to a guide wheel (7), a wire drawing die frame (10) is provided between the lower heating protective cover (2) and the outlet guide frame (13), and a wire drawing die (11) is fixed to one end of the wire drawing die frame (10).

2. The tungsten fine wire online heating device according to claim 1, characterized in that: The movable structure (5) comprises a mounting frame (501), a bidirectional screw (502), a belt (503) and a motor (504); the mounting frame (501) is sleeved on the top of the heating plate (4); the bottom end of the mounting frame (501) is movably connected to two sets of bidirectional screws (502); the front ends of the bidirectional screws (502) are sleeved with belts (503); the motor (504) is fixed to the front side wall inside the lower heating protective cover (2); and one end of the motor (504) is sleeved with the belt (503).

3. The tungsten fine wire online heating device according to claim 2, characterized in that: The mounting frame (501) is door-shaped, and the mounting frame (501) is slidably mounted on the upper surface of the heating plate (4).

4. The tungsten fine wire online heating device according to claim 1, characterized in that: The upper heating protective cover (3) is mounted on the top end of the lower heating protective cover (2), and the upper heating protective cover (3) and the lower heating protective cover (2) are arranged to be hingedly connected.

5. The tungsten fine wire online heating device according to claim 1, characterized in that: The left and right sides of the lower heating protective cover (2) and the upper heating protective cover (3) are both provided with threading openings, and the threading openings of the lower heating protective cover (2) and the upper heating protective cover (3) are square in the assembled state.

6. The tungsten fine wire online heating device according to claim 1, characterized in that: The heating plate (4) is fixed to the bottom end of the lower heating protective cover (2), and the inner cavity of the lower heating protective cover (2) is divided into a front heat dissipation cavity and a rear heat dissipation cavity by the heating plate (4). A plurality of heat dissipation holes (12) are provided on both the left and right sides of the lower heating protective cover (2).

7. The tungsten fine wire online heating device according to claim 1, characterized in that: The inlet guide frame (8) and the outlet guide frame (13) are both fixedly mounted on the independent wire drawing heating main plate (1), and the outer ends of the inlet guide frame (8) and the outlet guide frame (13) are both rotatably mounted with winding wheels (9).

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