Tungsten filament drawing mechanism

Abstract

The invention relates to the technical field of tungsten filament wire drawing processing, and discloses a tungsten filament wire drawing mechanism which comprises a box body and a cover body which is arranged at the upper end of the box body and can be opened and closed, a die holder assembly is arranged in the box body, a plurality of wire feeding grooves distributed in parallel are formed in the top face of the die holder assembly, die limiting grooves are formed in the positions, corresponding to the wire feeding grooves, of the top face of the die holder assembly, and the die limiting grooves are matched with the wire feeding grooves. The wire feeding grooves penetrate through the die limiting grooves in a one-to-one correspondence manner, and a wire drawing die is arranged in each die limiting groove; the die limiting groove limits the wire drawing die in the distribution direction of the wire feeding groove, and the wire drawing die can be installed in the die limiting groove in a sliding mode in the vertical direction and can be taken out of the die limiting groove in the vertical direction; and a heating assembly is arranged at the bottom of the die holder assembly. The wire drawing device has the beneficial effects of convenience in wire threading and convenience in wire drawing die replacement.

Description

Technical Field

[0001] The invention relates to the technical field of tungsten wire drawing processing, in particular to a tungsten wire drawing mechanism. Background Art

[0002] Tungsten wire drawing equipment is a kind of equipment used to draw thick tungsten wire into thin tungsten wire through the hole of the wire drawing die. The tungsten wire first passes through the graphite emulsion, and the surface of the tungsten wire is coated with graphite emulsion and then enters the heating zone. The graphite emulsion is dried in the heating zone so that graphite powder is attached to the surface of the tungsten wire. At the same time, the heating zone preheats the tungsten wire. The tungsten wire with graphite powder attached to the surface passes through the wire drawing die, and the diameter of the tungsten wire is reduced by the wire drawing die. In order to improve the wire drawing efficiency, the wire drawing equipment usually draws multiple tungsten wires at the same time. Multiple wire drawing dies need to be set in the wire drawing mechanism. When in use, the tungsten wires are passed through the wire drawing dies one by one. The wire drawing die and tungsten wire need to be heated during the wire drawing process. The current wire drawing die is installed in the die base. It is inconvenient to thread the tungsten wire before drawing, and it is also inconvenient to replace the wire drawing die. Summary of the invention

[0003] In order to solve the above problems existing in the prior art, the present invention provides a tungsten wire drawing mechanism which is convenient for wire threading and wire drawing die replacement.

[0004] In order to achieve the above object, the present invention adopts the following technical solution:

[0005] A tungsten wire drawing mechanism comprises a box body and an openable and closable cover body arranged at the upper end of the box body, wherein a die base assembly is arranged in the box body, and a plurality of parallel wire feeding grooves are arranged on the top surface of the die base assembly, and a die limiting groove is arranged at the top surface of the die base assembly corresponding to the wire feeding grooves, and the wire feeding grooves pass through the die limiting grooves in a one-to-one correspondence, and a wire drawing die is arranged in each die limiting groove; the die limiting groove limits the wire drawing die along the distribution direction of the wire feeding grooves, and the wire drawing die can be slid into the die limiting groove in the vertical direction and can be taken out from the die limiting groove in the vertical direction; a heating assembly is arranged at the bottom of the die base assembly.

[0006] Open the cover, take out the wire drawing die, insert the tungsten wire into the wire drawing die, and then install the wire drawing die into the limit groove of the die, and then cover the cover; the heating component is heated, and the front end of the tungsten wire is connected to the traction mechanism, and the heated tungsten wire is passed through the wire drawing die for wire drawing through the traction mechanism; since the two ends of the wire drawing die are limited internally and the upper and lower directions are in a free state, when the tungsten wire is tightened by the traction mechanism, the hole in the center of the wire drawing die can be automatically adjusted to be coaxial with the tungsten wire, thereby further improving the wire drawing quality.

[0007] Preferably, the top surface of the wire feeding slot is provided with clearance grooves at both ends of the mold limiting groove. The clearance grooves facilitate fingers or tools (clamps) to better load the wire drawing die into the mold limiting groove, or to more conveniently remove the mold from the mold limiting groove.

[0008] Preferably, avoidance grooves are provided at both sides of the box body corresponding to the two ends of the wire feeding slot, and a mounting seat is provided at the bottom of the box body. The avoidance groove avoids the tungsten wire, making it easier for the tungsten wire to enter the wire feeding slot.

[0009] Preferably, the cover is hingedly connected to the box body, a locking mechanism is provided between the cover and the box body, and a handle is provided on the cover. During use, the cover is locked behind the box body by the locking mechanism to prevent the cover from being opened by mistake.

[0010] Preferably, the locking mechanism includes a first connecting seat arranged on the side of the box body and a second connecting seat arranged on the side of the cover body, a locking rod is provided on the first connecting seat, the lower end of the locking rod is rotatably connected to the first connecting seat, a locking wheel is provided on the upper end of the locking rod, the locking wheel and the locking rod are threadedly connected, and a locking groove is provided on the second connecting seat; when the cover body is covered on the box body, the locking rod is rotated so that the upper end of the locking rod is inserted into the locking groove and locked by the locking wheel.

[0011] Preferably, a lower heat insulation seat is provided between the mold base assembly and the box body, and an upper heat insulation seat is provided in the cover body. Both the lower heat insulation seat and the upper heat insulation seat play a heat insulation role, reduce the heat loss of the heating assembly, and improve the utilization rate of heat energy.

[0012] Preferably, the die base assembly includes a plurality of die base bodies, the die base bodies are rectangular, and both sides of the upper end of the die base bodies are provided with wire feeding notches, and the wire feeding notches on both sides of the die base bodies are arc grooves, and the two arc grooves on the same die base body are symmetrically distributed; any two adjacent die base bodies are mirror-imaged, and the sides of the two adjacent die base bodies are abutted, and the wire feeding notches on the two adjacent die base bodies are combined to form the wire feeding groove, and the arc grooves on the two adjacent die bases are combined to form the mold limit groove. The die base assembly is assembled by a plurality of die base bodies, and the number of die base bodies can be flexibly selected according to actual needs. At the same time, the structures of all die base bodies are exactly the same, and the manufacturing, maintenance and replacement are very convenient. Any die base body can be replaced separately when it is worn or damaged, which greatly reduces the cost; at the same time, with the use of the wire drawing die, the graphite powder on the tungsten wire, the metal chips generated during the wire drawing process, etc. will fall into the die assembly, and need to be cleaned regularly. Since the die base assembly is assembled by a plurality of die base bodies, the die base body can be removed and cleaned separately when cleaning, which is more convenient.

[0013] Preferably, a cavity is provided at the lower end of the mold base body, and the heating component is arranged in the cavity; a connecting through hole is provided at the lower end of the mold base body passing through both sides, and a connecting rod is provided in the connecting through hole, and the connecting rod passes through all the connecting through holes on the mold base body and is fixed to the heating component.

[0014] Preferably, the heating assembly includes a heating seat and an electric heating tube arranged in the heating seat, the heating seat is arranged in the concave cavity, both ends of the heating seat extend outward to form limiting lugs, both ends of the heating seat are provided with end covers, and the end of the connecting rod passes through the limiting lugs and the end covers and is locked by a nut.

[0015] Preferably, a plurality of connecting sleeves are provided at the bottom of the heating seat, and bolts are provided at the bottom of the box body. The bolts pass through the bottom surface of the box body and are threadedly connected with the connecting sleeves.

[0016] Therefore, the present invention has the following beneficial effects: (1) It is convenient to thread the wire and use it, and the wire drawing die is very convenient to install, disassemble and replace; (2) The overall structure is compact and stable; (3) The die base assembly adopts an assembled structure, which is more convenient to process and manufacture, and is also convenient to maintain and replace, and the overall cost is lower. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A structural schematic diagram of the present invention.

[0018] Figure 2 for Figure 1 Another perspective of the picture.

[0019] Figure 3 This is a schematic diagram of the cover being opened.

[0020] Figure 4 for Figure 3 Top view of the .

[0021] Figure 5 for Figure 3 Exploded diagram.

[0022] Figure 6 This is a connection diagram of the mold base assembly and the heating assembly.

[0023] Figure 7 for Figure 6 Exploded diagram.

[0024] Figure 8 for Figure 6 sectional view of .

[0025] Fig. 9 It is a structural schematic diagram of the mold base assembly.

[0026] Fig.10 It is a structural schematic diagram of the mold base body. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and beneficial technical effects to be solved by the present invention more clearly understood, the present invention will be further described in detail below in conjunction with the accompanying drawings and multiple exemplary embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the scope of protection of the present invention.

[0028] It should be understood that, in this document, the expressions "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance, nor should they be understood as implicitly indicating the number of technical features indicated. Features defined as "first" or "second" may explicitly or implicitly indicate that at least one of the features is included.

[0029] like Figure 1-Figure 10 A tungsten wire drawing mechanism shown in the figure comprises a box body 1 and an openable and closable cover body 2 arranged at the upper end of the box body 1, a die base assembly 3 is arranged in the box body 1, a plurality of parallel wire feeding grooves 300 are arranged on the top surface of the die base assembly 3, a die limiting groove 301 is arranged at the top surface of the die base assembly 3 corresponding to the wire feeding groove 300, the wire feeding grooves 300 are correspondingly penetrated through the die limiting grooves 301 one by one, and a wire drawing die 4 is arranged in each die limiting groove 301; the die limiting groove 301 limits the wire drawing die 4 along the distribution direction of the wire feeding groove 300, and the wire drawing die 4 can be slidably installed into the die limiting groove 301 along the vertical direction and can be taken out from the die limiting groove 301 along the vertical direction; a heating assembly 5 is arranged at the bottom of the die base assembly 3.

[0030] The top surface of the wire feeding groove 300 is provided with a clearance groove 302 at both ends of the mold limiting groove 301; the two sides of the box body 1 are provided with avoidance grooves 100 corresponding to the two ends of the wire feeding groove 300, and the bottom of the box body 1 is provided with a mounting seat 101; the cover body 2 is hingedly connected to the box body 1, and a locking mechanism 6 is provided between the cover body 2 and the box body 1, and a handle 20 is provided on the cover body 2.

[0031] The locking mechanism 6 includes a first connecting seat 60 arranged on the side of the box body 1 and a second connecting seat 61 arranged on the side of the cover body 2. A locking rod 62 is provided on the first connecting seat 60. The lower end of the locking rod 62 is rotatably connected to the first connecting seat 60. A locking wheel 63 is provided on the upper end of the locking rod 62. The locking wheel 63 is threadedly connected to the locking rod 62. A locking groove 64 is provided on the second connecting seat 61. When the cover body 2 is covered on the box body 1, the locking rod 62 is rotated so that the upper end of the locking rod 62 is stuck in the locking groove 64 and locked by the locking wheel 63.

[0032] like Figure 6 As shown, a lower insulation seat 7 is provided between the mold base assembly 3 and the box body 1, and an upper insulation seat 8 is provided in the cover body 2. In this embodiment, the lower insulation seat 7 and the upper insulation seat 8 are both made of rock wool insulation material.

[0033] like Figure 7-Figure 10As shown, the die base assembly 3 includes a plurality of die base bodies 30, the die base bodies 30 are rectangular parallelepiped structures, both sides of the upper end of the die base body 30 are provided with wire inlet notches 300a, the wire inlet notches 300a on both sides of the die base body 30 are arc grooves 301a, and the two arc grooves 301a on the same die base body 30 are centrally symmetrically distributed, as shown in FIG. Fig.10 As shown, a single die base body 30 is a centrally symmetrical body, which can be completely overlapped after rotating 180° along the center of the top surface; any two adjacent die base bodies 30 are distributed in a mirror image, the side surfaces of the two adjacent die base bodies 30 are abutted, the wire feeding notches 300a on the two adjacent die base bodies 30 are combined to form a wire feeding groove 300, and the arc grooves 301a on the two adjacent die bases are combined to form a mold limiting groove 301.

[0034] The lower end of the mold base body 30 is provided with a concave cavity 303, and the heating assembly 5 is arranged in the concave cavity 303; the lower end of the mold base body 30 is provided with a connecting through hole 304 that passes through both sides, and a connecting rod 31 is arranged in the connecting through hole 304. The connecting rod 31 passes through all the connecting through holes 304 on the mold base body 30 and is fixed to the heating assembly 5. The heating assembly 5 includes a heating base 50 and an electric heating tube 51 arranged in the heating base 50. The heating base 50 is arranged in the concave cavity 303. The two ends of the heating base 50 extend outward to form a limiting lug 52. The two ends of the heating base 50 are provided with end covers 53. The ends of the connecting rod 31 pass through the limiting lug 52 and the end cover 53 and are locked by nuts 54. The bottom of the heating base 50 is provided with a plurality of connecting sleeves 55, and the bottom of the box body 1 is provided with bolts 56. The bolts 56 pass through the bottom surface of the box body 1 and are threadedly connected with the connecting sleeve 55.

[0035] The number of die base bodies 30 can be selected according to actual needs. In this embodiment, the die base body 30 is made of cast iron, and its strength and thermal conductivity meet the requirements. The die base assembly 3 is composed of ten die base bodies 30, which form nine complete die limit grooves 301 after assembly, and nine tungsten wires can be drawn at the same time; and two adjacent die limit grooves 301 are staggered. This arrangement allows the length dimension to be designed to be smaller, the overall structure is more compact, and the heating is more uniform. When the number of die base bodies 30 is reduced, washers and bushings can be added to the connecting rod to compensate for the reduced die base bodies to ensure that the remaining die base bodies can maintain abutment. At the same time, the unused space at both ends of the die base assembly is filled with insulating filling blocks 70 (such as Figure 5 shown).

[0036] In conjunction with the accompanying drawings, the principles of the present invention are as follows: Figure 5As shown, open the cover body 2, hold the wire drawing die 4, pass the tungsten wire 9 through the wire drawing die 4, and then install the wire drawing die into the die limit groove 301, cover the cover body 2 and lock the cover body and the box body through the locking mechanism 6, heat the heating component, and the traction mechanism pulls the tungsten wire to perform the wire drawing operation, which is more convenient to use; with continuous use, the die base assembly will be worn and damaged due to long-term heat and force. At this time, the damaged die base body can be replaced separately without replacing the entire die base; graphite powder during use and metal chips during the wire drawing process will remain in the die base assembly. At this time, the die base body can also be disassembled and cleaned, which is more convenient to clean.

[0037] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by up, down, left, right, inside, outside, one end, the other end, etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of more clearly describing the technical solution of the present invention, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific orientation, and cannot be understood as a limitation of the present invention.

[0038] Although specific embodiments of the present invention are described in detail herein, they are provided for the purpose of explanation only and should not be considered to limit the scope of the present invention. Various substitutions, changes and modifications may be conceived without departing from the spirit and scope of the present invention.

Claims

1. A tungsten wire drawing mechanism, characterized in that: The invention comprises a box body (1) and an openable and closable cover body (2) arranged at the upper end of the box body (1); a die base assembly (3) is arranged in the box body (1); a plurality of wire feeding grooves (300) distributed in parallel are arranged on the top surface of the die base assembly (3); a die limiting groove (301) is arranged at the corresponding position of the wire feeding grooves (300) on the top surface of the die base assembly (3); the wire feeding grooves (300) are connected through the die limiting grooves (301) in a one-to-one correspondence; a wire drawing die (4) is arranged in each die limiting groove (301); the die limiting groove (301) limits the wire drawing die (4) along the distribution direction of the wire feeding grooves (300); the wire drawing die (4) can be slidably installed into the die limiting groove (301) along the vertical direction and can be taken out of the die limiting groove (301) along the vertical direction; A heating component (5) is provided at the bottom of the mold base component (3).

2. A tungsten wire drawing mechanism according to claim 1, characterized in that: The top surface of the wire feeding groove (300) is provided with clearance grooves (302) at both ends of the mold limiting groove (301).

3. A tungsten wire drawing mechanism according to claim 1, characterized in that: Avoidance grooves (100) are provided at positions corresponding to both ends of the wire feeding groove (300) on both sides of the box body (1), and a mounting seat (101) is provided at the bottom of the box body (1).

4. A tungsten wire drawing mechanism according to claim 1, characterized in that: The cover body (2) is hingedly connected to the box body (1), a locking mechanism (6) is provided between the cover body (2) and the box body (1), and a handle (20) is provided on the cover body (2).

5. A tungsten wire drawing mechanism according to claim 4, characterized in that: The locking mechanism (6) comprises a first connecting seat (60) arranged on the side of the box body (1) and a second connecting seat (61) arranged on the side of the cover body (2); a locking rod (62) is arranged on the first connecting seat (60); the lower end of the locking rod (62) is rotatably connected to the first connecting seat (60); a locking wheel (63) is arranged on the upper end of the locking rod (62); the locking wheel (63) is threadedly connected to the locking rod (62); and a locking groove (64) is arranged on the second connecting seat (61); when the cover body (2) is covered on the box body (1), the locking rod (62) is rotated so that the upper end of the locking rod (62) is inserted into the locking groove (64) and locked by the locking wheel (63).

6. A tungsten wire drawing mechanism according to claim 1, characterized in that: A lower heat-insulating seat (7) is provided between the mold base assembly (3) and the box body (1), and an upper heat-insulating seat (8) is provided inside the cover body (2).

7. A tungsten wire drawing mechanism according to claim 1, characterized in that: The die base assembly (3) comprises a plurality of die base bodies (30), the die base bodies (30) being of a rectangular parallelepiped structure, both sides of the upper end of the die base body (30) being provided with wire feeding notches (300a), the wire feeding notches (300a) on both sides of the die base body (30) being both provided with arc-shaped grooves (301a), and the two arc-shaped grooves (301a) on the same die base body (30) being symmetrically distributed about the center; Any two adjacent die base bodies (30) are distributed in a mirror image, the side surfaces of the two adjacent die base bodies (30) are abutted, the wire feeding notches (300a) on the two adjacent die base bodies (30) are combined to form the wire feeding groove (300), and the arc grooves (301a) on the two adjacent die bases are combined to form the mold limiting groove (301).

8. A tungsten wire drawing mechanism according to claim 7, characterized in that: A concave cavity (303) is provided at the lower end of the mold base body (30), and the heating component (5) is arranged in the concave cavity (303); The lower end of the mold base body (30) is provided with a connecting through hole (304) passing through both sides, and a connecting rod (31) is provided in the connecting through hole (304). The connecting rod (31) passes through all the connecting through holes (304) on the mold base body (30) and is fixed to the heating component (5).

9. A tungsten wire drawing mechanism according to claim 8, characterized in that: The heating assembly (5) comprises a heating seat (50) and an electric heating tube (51) arranged in the heating seat (50); the heating seat (50) is arranged in the concave cavity (303); both ends of the heating seat (50) extend outward to form limiting lugs (52); both ends of the heating seat (50) are provided with end covers (53); the end of the connecting rod (31) passes through the limiting lugs (52) and the end covers (53) and is then locked by a nut (54).

10. A tungsten wire drawing mechanism according to claim 9, characterized in that: The bottom of the heating seat (50) is provided with a plurality of connecting sleeves (55), and the bottom of the box body (1) is provided with bolts (56), and the bolts (56) pass through the bottom surface of the box body (1) and are threadedly connected to the connecting sleeves (55).

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