A wire-wound resistor uniform winding device

Abstract

This utility model discloses a uniform winding device for wire-wound resistors, relating to the field of wire-wound resistor processing technology. It includes an L-shaped support frame, with a driving component on one side and a positioning clamping assembly and an insulating support on the other side. A movable connecting plate is located at one end of the insulating support. An adjustment assembly is located on the side of the L-shaped support frame, including a mounting frame. A lead screw and a slider are located in the middle of the mounting frame, and a drive motor is located on the side of the mounting frame. A connecting plate and an adjustment frame are located on the top of the slider. This utility model achieves tension on the resistance wire by winding it around a limiting wheel and a guide shaft, then through the bottom of a limiting block, thus preventing the resistance wire from loosening during winding and affecting the winding effect. Simultaneously, the drive motor rotates the lead screw, causing the slider to reciprocate with the hinge seat and the adjustment frame, thereby improving the uniformity of the resistance wire winding.

Description

Technical Field

[0001] This utility model relates to the field of wire-wound resistor processing technology, and in particular to a uniform winding device for wire-wound resistors. Background Technology

[0002] Wire-wound resistors are a type of resistor made by winding resistance wire around an insulating frame and then encapsulating it in an insulating manner. The resistance wire is typically made of alloys with a certain resistivity, such as nickel-chromium or manganese-copper. The insulating frame is usually made of ceramic, plastic, or a metal frame coated with an insulating layer. They are characterized by a small temperature coefficient and high precision. Among wire-wound resistors, there is a type that uses a ceramic frame and coats the outer layer of the resistor with glaze or other heat-resistant and well-dissipating insulating materials—a type of high-power wire-wound resistor.

[0003] Existing winding devices do not achieve ideal tension on the resistance wire during winding, causing the resistance wire to become loose when wound onto the insulating support. This results in damage to the resistance wire and uneven winding, affecting subsequent use. Therefore, there is a need to provide a wire-wound resistor uniform winding device to solve the above problems. Summary of the Invention

[0004] The main objective of this invention is to provide a uniform winding device for wire-wound resistors, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A wire-wound resistor uniform winding device includes an L-shaped support frame, a driving component is provided on one side of the L-shaped support frame, and a positioning clamping group and an insulating support are provided on one side of the driving component. A movable connecting plate is provided at one end of the insulating support, and an adjustment component is provided on the side of the L-shaped support frame.

[0007] The adjustment assembly includes a mounting frame, in the middle of which a lead screw and a slider are provided, and on the side of the mounting frame a drive motor is provided. The top of the slider is provided with a connecting plate and a hinge seat, and in the middle of the hinge seat an adjustment frame is provided.

[0008] The adjustment frame has a limiting groove in the middle, and the limiting groove is equipped with a limiting wheel, a guide shaft and a limiting block. The bottom of the adjustment frame is equipped with a connecting seat and a connecting spring.

[0009] Preferably, one end of the mounting frame is bolted to the inner side wall of the L-shaped support frame, and a slide rail is fixedly connected to the bottom of the mounting frame. The end of the mounting frame away from the L-shaped support frame is slidably connected to one side of the movable connecting plate, and a groove is provided on the side of the movable connecting plate. A sliding groove is provided at the bottom of the groove, and the slide rail is slidably connected inside the sliding groove at the bottom of the groove.

[0010] Preferably, a drive motor is bolted to one end of the mounting frame near the L-shaped support frame, and the drive motor passes through the L-shaped support frame. The output end of the drive motor is connected to a lead screw, and the two ends of the lead screw are respectively mounted on the inner walls of the two sides of the mounting frame through bearings. A slider is fitted on the outer wall of the lead screw, and the slider is slidably connected in the middle of the mounting frame. The lead screw and the slider are connected by threads.

[0011] Preferably, a connecting plate is bolted to the top of the slider, and the end of the connecting plate near the insulating bracket extends out of the top of the mounting frame. A hinge seat is bolted to the top side of the connecting plate near the mounting frame, and an adjusting frame is rotatably connected to the middle of the hinge seat. A connecting seat is bolted to the top side of the connecting plate away from the hinge seat, and there are two connecting seats, which are respectively distributed in the middle of the top of the connecting plate and the bottom of the adjusting frame.

[0012] Preferably, the end of the adjusting frame away from the hinge seat is in contact with the outer wall of the insulating support, and the top of the end of the adjusting frame near the insulating support is inclined. A limiting groove is formed in the middle of the top of the adjusting frame, and a limiting wheel is rotatably connected to the top of the end of the adjusting frame near the hinge seat through the support. A guide shaft is rotatably connected to the end of the limiting groove near the hinge seat.

[0013] Preferably, there are two limiting blocks installed inside the limiting groove by bolts, which are symmetrically distributed on the inner walls of both ends of the limiting groove. The limiting blocks are adjacent to the bottom inner wall of the limiting groove, and one of the limiting blocks is located below the guide shaft. The bottom of the adjusting frame is connected to a connecting spring through a connecting seat, and the connecting spring connects two connecting seats.

[0014] Preferably, the L-shaped support frame is slidably connected to the movable connecting plate, and the bottom of the movable connecting plate is slidably connected to the bottom inner wall of the L-shaped support frame. An adjusting cylinder is installed on the bottom inner wall of the L-shaped support frame by bolts, and the movable end of the adjusting cylinder is connected to the movable connecting plate by bolts. The adjusting cylinder is located below the insulating bracket. The output end of the driving component is drivenly connected to a positioning clamping group, and there are two positioning clamping groups, which are symmetrically distributed on the side of the L-shaped support frame and the side of the movable connecting plate, respectively, and the insulating bracket is located in the middle of the two positioning clamping groups.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] In this invention, the resistance wire is wound around the limiting wheel and guide shaft and then through the bottom of the limiting block, thereby achieving tension of the resistance wire and preventing it from loosening during the winding process, which would affect the winding effect. At the same time, the drive motor drives the lead screw to rotate, causing the slider to drive the hinge seat and the adjustment frame to reciprocate. During the movement, the adjustment frame drives the resistance wire to move at a constant speed, thereby improving the uniformity of the resistance wire winding. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the device of this utility model;

[0018] Figure 2 This is a schematic diagram of the side structure of the L-shaped support frame of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the adjustment component of this utility model;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the adjustment frame of this utility model.

[0021] In the diagram: 1. L-shaped support frame; 2. Movable connecting plate; 3. Driving component; 4. Positioning clamping assembly; 5. Insulating bracket; 6. Adjusting cylinder; 7. Adjusting assembly; 8. Mounting frame; 9. Drive motor; 10. Lead screw; 11. Slider; 12. Groove; 13. Slide rail; 14. Connecting plate; 15. Hinge seat; 16. Adjusting frame; 17. Limiting groove; 18. Limiting wheel; 19. Guide shaft; 20. Limiting block; 21. Connecting seat; 22. Connecting spring. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] Please see Figure 1 , Figure 2As shown, a wire-wound resistor uniform winding device includes an L-shaped support frame 1. A driving member 3 is provided on one side of the L-shaped support frame 1, and a positioning clamping group 4 and an insulating support 5 are provided on one side of the driving member 3. A movable connecting plate 2 is provided at one end of the insulating support 5. An adjusting component 7 is provided on the side of the L-shaped support frame 1. The L-shaped support frame 1 and the movable connecting plate 2 are slidably connected, and the bottom of the movable connecting plate 2 is slidably connected to the bottom inner wall of the L-shaped support frame 1. An adjusting cylinder 6 is installed on the bottom inner wall of the L-shaped support frame 1 by bolts, and the movable end of the adjusting cylinder 6 is connected to the movable connecting plate 2 by bolts. The adjusting cylinder 6 is located below the insulating support 5. The output end of the driving member 3 is drivenly connected to the positioning clamping group 4, and there are two positioning clamping groups 4, which are symmetrically distributed on the side of the L-shaped support frame 1 and the side of the movable connecting plate 2, respectively. The insulating support 5 is located in the middle of the two positioning clamping groups 4.

[0024] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the adjustment component 7 includes a mounting frame 8, with a lead screw 10 and a slider 11 in the middle of the mounting frame 8, and a drive motor 9 on the side of the mounting frame 8. A connecting plate 14 and a hinge seat 15 are provided on the top of the slider 11, and an adjustment frame 16 is provided in the middle of the hinge seat 15. One end of the mounting frame 8 is bolted to the inner side wall of the L-shaped support frame 1, and a slide rail 13 is fixedly connected to the bottom of the mounting frame 8. The end of the mounting frame 8 away from the L-shaped support frame 1 is slidably connected to one side of the movable connecting plate 2, and a groove 12 is provided on the side of the movable connecting plate 2. A sliding groove is provided at the bottom of the groove 12, and the slide rail 13 is slidably connected inside the sliding groove at the bottom of the groove 12.

[0025] A drive motor 9 is bolted to one end of the mounting frame 8 near the L-shaped support frame 1, and the drive motor 9 passes through the L-shaped support frame 1. The output end of the drive motor 9 is connected to a lead screw 10, and the two ends of the lead screw 10 are respectively mounted on the inner walls of the two sides of the mounting frame 8 through bearings. A slider 11 is fitted on the outer wall of the lead screw 10, and the slider 11 is slidably connected in the middle of the mounting frame 8. The lead screw 10 and the slider 11 are connected by threads. A connecting plate 14 is bolted to the top of the slider 11, and the end of the connecting plate 14 near the insulating bracket 5 extends out of the top of the mounting frame 8. A hinge seat 15 is bolted to the side of the connecting plate 14 near the top of the mounting frame 8, and an adjusting frame 16 is rotatably connected to the middle of the hinge seat 15. A connecting seat 21 is bolted to the side of the connecting plate 14 away from the top of the hinge seat 15, and there are two connecting seats 21, which are respectively distributed in the middle of the top of the connecting plate 14 and the bottom of the adjusting frame 16.

[0026] The adjusting frame 16 has a limiting groove 17 in the middle. A limiting wheel 18, a guide shaft 19, and a limiting block 20 are installed inside the limiting groove 17. A connecting seat 21 and a connecting spring 22 are installed at the bottom of the adjusting frame 16. The end of the adjusting frame 16 away from the hinge seat 15 contacts the outer wall of the insulating support 5, and the top of the end of the adjusting frame 16 near the insulating support 5 is inclined. A limiting groove 17 is opened in the middle of the top of the adjusting frame 16, and the top of the end of the adjusting frame 16 near the hinge seat 15 is rotatably connected to the limiting wheel 18 via a support. A guide shaft 19 is rotatably connected to the end of the limiting groove 17 near the hinge seat 15. Two limiting blocks 20 are installed inside the limiting groove 17 by bolts, symmetrically distributed in the limiting groove 17. On the inner walls of both ends of 7, the limiting blocks 20 are adjacent to the bottom inner walls of the limiting grooves 17, and one of the limiting blocks 20 is located below the guide shaft 19. The bottom of the adjusting frame 16 is connected to the connecting spring 22 through the connecting seat 21, and the connecting spring 22 connects the two connecting seats 21. The resistance wire is wound around the limiting wheel 18 and the guide shaft 19 and then passes through the bottom of the limiting block 20, thereby achieving tension of the resistance wire and preventing the resistance wire from becoming loose during the winding process, which would affect the winding effect. At the same time, the driving motor 9 drives the lead screw 10 to rotate, causing the slider 11 to drive the hinge seat 15 and the adjusting frame 16 to reciprocate. During the movement, the adjusting frame 16 drives the resistance wire to move at a uniform speed, thereby improving the uniformity of the resistance wire winding.

[0027] It should be noted that this utility model is a wire-wound resistor uniform winding device. In use, one end of the resistance wire to be wound is passed through the top of the limiting wheel 18, then through the bottom of the guide shaft 19, so that the resistance wire is wound once on the guide shaft 19. The resistance wire is then passed through the bottom of the two limiting blocks 20 inside the limiting groove 17, and finally wound onto the insulating bracket 5. The driving component 3 drives the positioning clamping assembly 4 and the insulating bracket 5 to rotate at a uniform speed. Simultaneously, the drive motor 9 drives the lead screw 10 to rotate, and the slider 11 drives the hinge seat 15 to... The adjusting frame 16 rotates at a constant speed with the positioned resistance wire, thereby guiding and evenly winding the resistance wire, preventing multiple resistance wires from overlapping during winding and affecting the winding effect. The movable connecting plate 2 is slidably connected to the L-shaped support frame 1. The movable connecting plate 2 is pushed and retracted by the set adjusting cylinder 6, thereby achieving the positioning and clamping of the insulating support 5, and making the device applicable to insulating supports 5 of different sizes. At the same time, the mounting frame 8 is slidably connected to the movable connecting plate 2 through the slide rail 13, improving the practicality of the device.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A uniform winding device for wire-wound resistors comprising an L-shaped carrier (1), characterized in that: A driving component (3) is provided on one side of the L-shaped support frame (1), and a positioning clamping group (4) and an insulating bracket (5) are provided on one side of the driving component (3). A movable connecting plate (2) is provided at one end of the insulating bracket (5), and an adjustment component (7) is provided on the side of the L-shaped support frame (1). The adjustment component (7) includes a mounting frame (8), in which a lead screw (10) and a slider (11) are provided in the middle, and a drive motor (9) is provided on the side of the mounting frame (8). A connecting plate (14) and a hinge seat (15) are provided on the top of the slider (11), and an adjustment frame (16) is provided in the middle of the hinge seat (15). The adjustment frame (16) has a limiting groove (17) in the middle. The limiting groove (17) is equipped with a limiting wheel (18), a guide shaft (19) and a limiting block (20). The bottom of the adjustment frame (16) is equipped with a connecting seat (21) and a connecting spring (22).

2. A uniform winding device for wire-wound resistors according to claim 1, characterized in that: One end of the mounting frame (8) is bolted to the inner side wall of the L-shaped support frame (1), and a slide rail (13) is fixedly connected to the bottom of the mounting frame (8). The end of the mounting frame (8) away from the L-shaped support frame (1) is slidably connected to one side of the movable connecting plate (2), and a groove (12) is provided on the side of the movable connecting plate (2). A sliding groove is provided at the bottom of the groove (12), and the slide rail (13) is slidably connected inside the sliding groove at the bottom of the groove (12).

3. A uniform winding device for wire-wound resistors according to claim 2, characterized in that: The mounting frame (8) is bolted to one end near the L-shaped support frame (1), and the drive motor (9) passes through the L-shaped support frame (1). The output end of the drive motor (9) is connected to a lead screw (10), and the two ends of the lead screw (10) are respectively mounted on the inner walls of the two sides of the mounting frame (8) through bearings. A slider (11) is fitted on the outer wall of the lead screw (10), and the slider (11) is slidably connected in the middle of the mounting frame (8). The lead screw (10) and the slider (11) are connected by threads.

4. A uniform winding device for wire-wound resistors according to claim 3, characterized in that: The top of the slider (11) is bolted with a connecting plate (14), and the end of the connecting plate (14) near the insulating bracket (5) extends out of the top of the mounting frame (8). The top side of the connecting plate (14) near the top of the mounting frame (8) is bolted with a hinge seat (15), and the middle of the hinge seat (15) is rotatably connected with an adjustment frame (16). The top side of the connecting plate (14) away from the hinge seat (15) is bolted with a connecting seat (21), and there are two connecting seats (21), which are respectively distributed in the middle of the top of the connecting plate (14) and the bottom of the adjustment frame (16).

5. A uniform winding device for wire-wound resistors according to claim 1, characterized in that: The end of the adjusting frame (16) away from the hinge seat (15) is in contact with the outer wall of the insulating support (5), and the top of the adjusting frame (16) near the insulating support (5) is inclined. A limiting groove (17) is opened in the middle of the top of the adjusting frame (16), and a limiting wheel (18) is rotatably connected to the top of the adjusting frame (16) near the hinge seat (15) through a support. A guide shaft (19) is rotatably connected to the end of the limiting groove (17) near the hinge seat (15).

6. A uniform winding device for wire-wound resistors according to claim 5, characterized in that: The limiting groove (17) is fitted with a limiting block (20) by bolts. There are two limiting blocks (20), which are symmetrically distributed on the inner walls of both ends of the limiting groove (17). The limiting blocks (20) are adjacent to the bottom inner wall of the limiting groove (17), and one of the limiting blocks (20) is located below the guide shaft (19). The bottom of the adjusting frame (16) is connected to a connecting spring (22) through a connecting seat (21), and the connecting spring (22) connects two connecting seats (21).

7. A uniform winding device for wire-wound resistors according to claim 1, characterized in that: The L-shaped support frame (1) is slidably connected to the movable connecting plate (2), and the bottom of the movable connecting plate (2) is slidably connected to the bottom inner wall of the L-shaped support frame (1). An adjusting cylinder (6) is installed on the bottom inner wall of the L-shaped support frame (1) by bolts, and the movable end of the adjusting cylinder (6) is connected to the movable connecting plate (2) by bolts. The adjusting cylinder (6) is located below the insulating bracket (5). The output end of the driving component (3) is connected to a positioning clamping group (4), and there are two positioning clamping groups (4), which are symmetrically distributed on the side of the L-shaped support frame (1) and the side of the movable connecting plate (2), respectively. The insulating bracket (5) is located in the middle of the two positioning clamping groups (4).

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