A tungsten wire straightening apparatus

Abstract

The utility model discloses a tungsten filament straightening equipment belongs to metal wire rod processing equipment technical field, and this equipment includes workstation, the straightening box and heating assembly fixed in workstation, is equipped with first press roll and second press roll in straightening box, it still includes elevating assembly and adjusting assembly, and elevating assembly includes screw twist, threaded rod, bearing and connecting plate, and can drive threaded rod by rotating screw twist, and the height of first press roll is adjusted by bearing drive connecting plate up and down movement, and adjusting assembly includes shell, lever, carousel, guide slot and push block, and makes carousel rotate by lever, and push block moves in the radial in movable slot by guide slot drive. The utility model discloses the synergistic effect of elevating assembly and adjusting assembly has realized the accurate matching of the straightening of different line diameter tungsten filament and the heating gap, effectively solved the problem that the poor versatility and the machining precision are not high because the structure is fixed of existing equipment, has the advantages such as convenient adjustment, strong applicability.

Description

Technical Field

[0001] This utility model relates to the technical field of metal wire processing equipment, and in particular to a tungsten wire straightening device. Background Technology

[0002] Tungsten wire is widely used in many key fields such as lighting, electronics, and aerospace due to its high melting point, high strength and excellent high temperature performance. Before it is put into use, the coiled tungsten wire raw material must be straightened to ensure that it has good straightness and meets the requirements of subsequent production processes.

[0003] Tungsten wire straightening equipment is the key device to complete this process. Because tungsten wire has hard and brittle physical properties at room temperature, direct mechanical straightening can easily lead to its breakage. Therefore, the common straightening process is to first heat the tungsten wire to improve its plasticity, and then physically straighten it through multiple sets of straightening rollers or pressure rollers.

[0004] In the actual production heating process, the wire diameter has a significant impact on the heating effect and the smoothness of operation. If the wire diameter is too thin, it will create an excessive gap between the tungsten wire and the heating source, which will not only cause a significant decrease in heating efficiency, but also lead to uneven heating. If the wire diameter is too thick, it will be difficult to pass through the preset channel smoothly because the size exceeds the adaptation range, which will affect the production process.

[0005] Therefore, this utility model proposes a tungsten wire straightening device to overcome the shortcomings of the prior art. Utility Model Content

[0006] In view of the problems in the existing tungsten wire straightening equipment, such as the fixed spacing between the heating component and the tungsten wire, which makes it difficult to adapt to tungsten wires of different diameters, resulting in poor equipment versatility and low processing accuracy, this utility model aims to provide a tungsten wire straightening equipment with an improved structure that can effectively solve the above problems.

[0007] This utility model provides a tungsten wire straightening device, including a support base, a worktable, a straightening box, a first pressure roller, a second pressure roller, a heating component and multiple heating tubes, as well as a lifting component and an adjusting component.

[0008] The lifting assembly consists of a screw, a threaded rod, a bearing, and a connecting plate. The first pressure roller is mounted on the connecting plate by a rotatable connection. The screw is fixedly connected to the top of the threaded rod, and a threaded connection is formed between the threaded rod and the straightening box. The bearing is fixedly connected to the connecting plate on one hand and fitted around the outer circumference of the threaded rod on the other. Through this structural combination, the lifting assembly converts the rotational motion of the screw into the precise lifting motion of the first pressure roller.

[0009] Furthermore, the adjustment assembly includes a housing, a turntable, a lever, push blocks, and movable slots and guide slots respectively opened on the housing and the turntable. Multiple push blocks are slidably connected to the movable slots on the housing and each abuts against a heating tube. The lever is rotatably connected to the housing and drives the turntable. One end of each push block is slidably engaged in the guide slot of the turntable. Through this linkage structure, the adjustment assembly converts the swing of the lever into the synchronous radial movement of multiple heating tubes.

[0010] Preferably, the tungsten wire straightening equipment also includes a drive motor, a platform, and multiple sets of guide straightening wheels rotatably connected to the top surface of the platform. The drive motor is fixedly connected to the straightening box and drives the second pressure roller to provide power for the continuous conveying of the tungsten wire. The guide straightening wheels perform secondary fine straightening and stable guidance on the tungsten wire straightened by the pressure roller.

[0011] Preferably, the heating assembly also includes a feed pipe, with multiple heating tubes arranged around the outer periphery of the feed pipe to form a channel structure that can uniformly and efficiently heat the passing tungsten wire, providing a good process foundation for subsequent plastic straightening.

[0012] Preferably, the tungsten wire straightening equipment also includes an automated cutting mechanism, which includes a cutting table, a connecting frame, an electric push rod, and a cutting blade. The cutting table is fixedly connected to the worktable and located downstream of the straightening box. The connecting frame spans above the cutting table. The electric push rod is fixedly connected to the connecting frame, and the cutting blade is fixedly connected to the push rod end of the electric push rod, forming a complete automated cutting unit, realizing continuous operation of straightening and fixed-length cutting.

[0013] Preferably, in order to facilitate cutting and finished product collection, the equipment also includes a discharge pipe and a collection box. The discharge pipe is fixedly connected to the outlet end of the straightening box and extends to the top of the cutting table to accurately guide the straightened tungsten wire to the cutting position. The collection box is placed below the end of the cutting table to automatically collect the cut tungsten wire finished products.

[0014] Preferably, as a specific implementation of the adjustment component, the lever passes through the outer casing and is fixedly connected to the turntable, so that the operator can conveniently and quickly adjust the spacing of the internal heating tubes by directly operating the lever on the outside of the equipment.

[0015] Preferably, the guide groove on the turntable is an arc-shaped groove. This arc-shaped groove design ensures that the pusher moves along a smooth curved trajectory when driven, thereby achieving stable and stepless linear adjustment of the heating tube spacing and avoiding jamming or sudden changes during the adjustment process.

[0016] Preferably, inside the straightening box, the second pressure roller is located below the first pressure roller, and a stable and uniform straightening force is applied to the tungsten wire by forming a straightening method of upper and lower pressure.

[0017] This utility model has the following beneficial effects: 1. This utility model, by setting a heating component at the feeding end of the equipment, preheats the tungsten wire before it enters the subsequent processing stage, reducing the impact of temperature difference on processing accuracy, improving overall production efficiency and the quality of finished tungsten wire, avoiding defects such as breakage and deformation caused by direct processing of tungsten wire at room temperature, and further ensuring the stability and continuity of the production process.

[0018] 2. This utility model solves the problem that the heating device cannot be adjusted according to the changes in the thickness of the tungsten wire, resulting in uneven heating or low efficiency, by setting an adjustment component consisting of a lever, a turntable, a guide groove and a push block. It can synchronously and smoothly change the clamping distance of the heating tube, so that the heat can be concentrated on tungsten wires of different specifications, thereby improving heating efficiency and material plasticity. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of a tungsten wire straightening device proposed in this utility model; Figure 2 This is a schematic diagram of the structure of the collection box of a tungsten wire straightening device proposed in this utility model; Figure 3 This is a schematic diagram of the heating tube of a tungsten wire straightening device proposed in this utility model; Figure 4 This is a schematic diagram of the structure of the turntable of a tungsten wire straightening device proposed in this utility model; Figure 5 This is a schematic diagram of the straightening box of a tungsten wire straightening device proposed in this utility model; Figure 6 This is a schematic diagram of the bearing structure of a tungsten wire straightening device proposed in this utility model.

[0020] Legend: 1. Workbench; 2. Support base; 3. Straightening box; 4. Lifting assembly; 401. Screw; 402. Threaded rod; 403. Bearing; 404. Connecting plate; 5. Drive motor; 6. Platform; 7. Guide straightening wheel; 8. Heating assembly; 801. Feed pipe; 802. Heating tube; 9. Adjustment assembly; 901. Housing; 902. Movable groove; 903. Push block; 904. Lever; 905. Turntable; 906. Guide groove; 10. Connecting frame; 11. Electric push rod; 12. Cutting blade; 13. First pressure roller; 14. Second pressure roller; 15. Discharge pipe; 16. Cutting table; 17. Collection box. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please refer to Figures 1 to 6 This utility model provides a tungsten wire straightening device, which aims to solve the problem in the prior art that the distance between the heating component and the straightening component is difficult to accurately match tungsten wires of different diameters, resulting in poor equipment versatility and low processing accuracy.

[0023] like Figure 1 As shown, the tungsten wire straightening device includes a support base 2 and a worktable 1 fixedly connected to the top of the support base 2. The support base 2 provides a stable installation foundation for the entire device. A straightening box 3 and a heating component 8 are fixedly connected on the worktable 1. A first pressure roller 13 and a second pressure roller 14 are rotatably connected inside the straightening box 3, and the second pressure roller 14 is located below the first pressure roller 13. Multiple heating tubes 802 are movably disposed inside the heating component 8, and the heating tubes 802 are connected to an external power source to achieve the heating effect. The device achieves compatibility adjustment for tungsten wires of different specifications by setting up a lifting component 4 and an adjusting component 9.

[0024] Specifically, such as Figure 1 , Figure 5 and Figure 6 As shown, the lifting assembly 4 is used to adjust the distance between the first pressure roller 13 and the second pressure roller 14. The lifting assembly 4 includes a connecting plate 404 fixedly connected to the straightening box 3. The first pressure roller 13 is rotatably connected to the connecting plate 404. The lifting assembly 4 also includes a screw 401, a threaded rod 402 and a bearing 403. The screw 401 is fixedly connected to the top end of the threaded rod 402. The threaded rod 402 is threadedly connected to the straightening box 3. The bearing 403 is rotatably installed inside the connecting plate 404 and fitted around the outer periphery of the threaded rod 402. By rotating the screw 401, the threaded rod 402 rotates inside the straightening box 3 and drives the bearing 403 and the connecting plate 404 to move up and down along their axial direction, thereby achieving precise adjustment of the height of the first pressure roller 13.

[0025] At the same time, such as Figure 3 and Figure 4As shown, the adjustment component 9 is used to adjust the clamping distance between multiple heating tubes 802. The adjustment component 9 includes a housing 901 and a turntable 905 rotatably connected inside the housing 901. The inner side of the housing 901 and the outer side of the turntable 905 are both made of materials with magnetic adsorption properties. The housing 901 has a movable groove 902 for the push block 903 to slide. The turntable 905 has an arc-shaped guide groove 906. The guide grooves 906 are symmetrically distributed with the center of the turntable 905 as the center. The tilt direction of each guide groove 906 is deflected corresponding to the adjacent guide groove 906. The whole structure forms a multi-circular arc-shaped groove structure with evenly distributed angles, tilted grooves, and symmetrical tilt directions. Push block 903 is slidably connected to movable groove 902 and abuts against heating tube 802. One end of push block 903 is slidably engaged in guide groove 906. Adjustment component 9 also includes a lever 904 rotatably connected to the middle of housing 901. Lever 904 passes through housing 901 and is fixedly connected to turntable 905. By moving lever 904, turntable 905 is rotated, and guide groove 906 drives push block 903 to move radially in movable groove 902, thereby synchronously adjusting the position of all heating tubes 802. After adjustment, turntable 905 and the inner side of housing 901 are attracted to each other under the action of magnetic force, fixing heating tube 802 in the current position.

[0026] The feeding and straightening of the tungsten wire is accomplished collaboratively by the drive motor 5, platform 6, guide straightening rollers 7, and multiple straightening boxes 3, as follows: Figure 1 As shown, the drive motor 5 is fixedly connected to the straightening box 3 and drives the second pressure roller 14 to provide power for the conveying of tungsten wire. The platform 6 is fixedly connected to the discharge side of the straightening box 3 and is used to support and connect other components. Multiple sets of guide straightening wheels 7 are rotatably connected to the top surface of the platform 6. As the tungsten wire moves from the straightening box 3 to the next straightening box 3, it is guided and assisted in straightening by the guide straightening wheels 7, ensuring the continuity and stability of the straightening process.

[0027] In order to effectively heat tungsten wires of different diameters, the heating assembly 8 also includes a feed pipe 801, and multiple heating tubes 802 are arranged around the outer periphery of the feed pipe 801. The tungsten wire to be processed passes through the feed pipe 801, and the surrounding heating tubes 802 can uniformly heat it circumferentially to enhance its plasticity.

[0028] The straightened tungsten wire needs to be cut into specific lengths, such as... Figure 1As shown, the equipment also includes a cutting table 16, a connecting frame 10, an electric push rod 11, and a cutting blade 12. The cutting table 16 is fixedly connected to the worktable 1 and located downstream of the straightening box 3, and is used to carry the tungsten wire to be cut. The connecting frame 10 spans above the cutting table 16. The electric push rod 11 is fixedly connected to the connecting frame 10, and the cutting blade 12 is fixedly connected to the push rod end of the electric push rod 11. When the straightened tungsten wire is transported to the cutting table 16, the electric push rod 11 drives the cutting blade 12 to move downward to complete the cutting of the tungsten wire.

[0029] Based on the above embodiments, the present invention may further include the following preferred technical solutions: In a preferred embodiment, to achieve orderly conveying and collection of tungsten filaments, the device further includes a discharge pipe 15 and a collection box 17, such as... Figure 1 As shown, the discharge pipe 15 is fixedly connected to the outlet end of the last straightening box 3 and extends above the cutting table 16 to precisely guide the straightened tungsten wire to the cutting position. The collection box 17 is placed below the end of the cutting table 16 to collect the finished tungsten wire segments cut by the cutting blade 12.

[0030] As a specific structure of the adjustment component 9, in order to achieve convenient and reliable operation, the lever 904 passes through the outer shell 901 and is fixedly connected to the turntable 905. The operator can directly drive the internal turntable 905 to rotate by moving the lever 904 exposed to the outside, thereby achieving adjustment.

[0031] As another preferred structure of the adjustment component 9, the guide groove 906 is set as an arc groove. This design allows the push block 903 to move along a smooth curved trajectory when the turntable 905 rotates, thereby achieving a smooth and linear adjustment of the spacing of the heating tubes 802 and avoiding jamming or sudden changes.

[0032] The working principle of this tungsten wire straightening device is as follows: First, the tungsten wire to be straightened is placed into the feed pipe 801 of the heating assembly 8. The temperature of the tungsten wire rises under the heating of multiple heating tubes 802 inside the feed pipe 801, enhancing its plasticity and preparing it for subsequent straightening. At the same time, the clamping distance of the multiple heating tubes 802 can be adjusted by the adjusting component 9 installed in the middle of the heating assembly 8, so that the heating assembly 8 can adapt to tungsten wires of different thicknesses. Specifically, by moving the lever 904 located in the middle of the outer shell 901 forward or backward, the turntable 905 rotates inside the outer shell 901 under the drive of the lever 904, and at the same time drives the guide groove 906 in the middle to rotate. Under the arc guidance of the guide groove 906, the multiple push blocks 903 in the middle of the guide groove 906 move in the movable groove 902 in the middle of the outer shell 901, and push the heating tubes 802 at the ends to move inward or outward at the same time, until the clamping distance between the multiple heating tubes 802 is adjusted to the optimal value.

[0033] Subsequently, the drive motor 5 is turned on, which drives the second pressure roller 14 to start rotating. The heated tungsten wire enters the straightening box 3 through the feed pipe 801, and under the crushing and friction of the first pressure roller 13 and the second pressure roller 14, it is fed into multiple guide straightening rollers 7 at the top of the platform 6. After being straightened by the multiple guide straightening rollers 7, it is fed into the next straightening box 3. After being straightened by the second and third straightening boxes 3 and the second set of guide straightening rollers 7, it moves to the surface of the cutting table 16 through the discharge pipe 15. At this time, the electric push rod 11 in the middle of the connecting frame 10 is activated. The electric push rod 11 drives the cutting blade 12 at the bottom to cut the straightened tungsten wire. After the tungsten wire is cut, it will fall into the collection box 17.

[0034] When it is necessary to adjust the crushing height between the first pressure roller 13 and the second pressure roller 14 according to the thickness of the tungsten wire, it can be precisely adjusted by the lifting assembly 4. Specifically, by rotating the screw 401 upward, the threaded rod 402 drives the bearing 403 inside the connecting plate 404 to rotate under the rotation of the screw 401. At the same time, under the threaded connection between the threaded rod 402 and the straightening box 3 at the top of the worktable 1, the bearing 403 is driven to move upward, and the connecting plate 404 is driven to move upward through the bearing 403. Finally, the first pressure roller 13 in the middle is driven to move upward through the connecting plate 404, thereby realizing the height adjustment. Under the stable support of the support base 2, the heating assembly 8 and the straightening box 3 can maintain stable operation, ensuring the processing accuracy of the tungsten wire.

[0035] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A tungsten wire straightening device, comprising a support base (2), a workbench (1) fixedly connected to the top of the support base (2), a straightening box (3) fixedly connected to the workbench (1), a first pressure roller (13) and a second pressure roller (14) rotatably connected inside the straightening box (3), a heating assembly (8) fixedly connected to the workbench (1), and a plurality of heating tubes (802) movably provided inside the heating assembly (8); Its features are, The device further includes an adjustment assembly (9) for adjusting the clamping distance between the plurality of heating tubes (802). The adjustment assembly (9) includes a housing (901), a movable groove (902) opened in the housing (901), a push block (903), a lever (904), a turntable (905), and a guide groove (906) opened on the turntable (905). The push block (903) is slidably connected in the movable groove (902) and abuts against the heating tube (802). The lever (904) is rotatably connected to the housing (901) and drives the turntable (905). One end of the push block (903) is slidably engaged in the guide groove (906). The heating assembly (8) also includes a feed pipe (801), and a plurality of heating pipes (802) are arranged around the outer periphery of the feed pipe (801).

2. The tungsten wire straightening device according to claim 1, characterized in that, The device also includes a lifting assembly (4) for adjusting the distance between the first pressure roller (13) and the second pressure roller (14). The lifting assembly (4) includes a screw (401), a threaded rod (402), a bearing (403), and a connecting plate (404). The first pressure roller (13) is rotatably connected to the connecting plate (404). The screw (401) is fixedly connected to the top end of the threaded rod (402). The threaded rod (402) is threadedly connected to the straightening box (3). The bearing (403) is fixedly connected to the connecting plate (404) and fitted around the outer periphery of the threaded rod (402).

3. The tungsten wire straightening device according to claim 2, characterized in that... The device also includes a drive motor (5), a platform (6) and a plurality of guide straightening wheels (7) rotatably connected to the top surface of the platform (6). The drive motor (5) is fixedly connected to the straightening box (3) and drives the second pressure roller (14).

4. The tungsten wire straightening device according to claim 1, characterized in that, The device also includes a cutting table (16), a connecting frame (10), an electric push rod (11), and a cutting blade (12). The cutting table (16) is fixedly connected to the workbench (1) and located downstream of the straightening box (3). The connecting frame (10) spans above the cutting table (16). The electric push rod (11) is fixedly connected to the connecting frame (10). The cutting blade (12) is fixedly connected to the push rod end of the electric push rod (11).

5. The tungsten wire straightening device according to claim 4, characterized in that, The device also includes a discharge pipe (15) and a collection box (17). The discharge pipe (15) is fixedly connected to the outlet end of the straightening box (3) and extends above the cutting table (16). The collection box (17) is placed below the end of the cutting table (16).

6. The tungsten wire straightening device according to claim 1, characterized in that, The lever (904) passes through the housing (901) and is fixedly connected to the turntable (905).

7. The tungsten wire straightening device according to claim 1, characterized in that, The guide grooves (906) are symmetrically distributed around the center of the turntable (905), and the tilt direction of each guide groove (906) is deflected in relation to the adjacent guide groove (906), forming a multi-circular arc groove structure with evenly distributed angles, tilted grooves, and symmetrical tilt directions.

8. The tungsten wire straightening device according to claim 1, characterized in that, The second pressure roller (14) is located below the first pressure roller (13).

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