Steel wire drawing device of steel wire thread insert

Abstract

The utility model discloses a steel wire drawing device of a steel wire thread insert, and relates to the technical field of metal processing. The device comprises a drawing assembly, two steering assemblies and a liquid storage tank, the drawing assembly comprises a first shaft barrel and a second shaft barrel, five first drawing wheels are arranged on the peripheral side of the first shaft barrel, five second drawing wheels are arranged on the peripheral side of the second shaft barrel, a liquid storage pool is arranged below the first shaft barrel, the steering assembly comprises a steering rotating shaft, and a fixed pulley is arranged on the peripheral side of the steering rotating shaft. According to the steel wire drawing device, the drawing wheel I, the drawing wheel II, the liquid storage tank and the fixed pulley are arranged, so that the problem that a steel wire is deformed due to temperature rise in the drawing process of an existing steel wire drawing device of a steel wire thread insert is solved, and the problem that part of steel wire drawing devices cannot be formed at a time is solved; and the problem that a steel wire drawing device capable of achieving one-time forming occupies a large space is solved.

Description

Technical Field

[0001] This utility model belongs to the field of metal processing technology, and in particular relates to a wire drawing device for a wire threaded sleeve. Background Technology

[0002] Wire thread inserts are a new type of internal thread fastener suitable for threaded connections. They are screwed into and tightened in the threaded hole of one of the connected parts to form a standard internal thread. They offer high connection strength, shock resistance, impact resistance, and wear resistance, protecting the base thread and extending its service life. During the processing of wire thread inserts, the wire must first be drawn to the required dimensions before further processing can proceed. However, the wire drawing devices currently available for mainstream wire thread inserts still have the following problems during use:

[0003] 1. Wire drawing is a plastic processing technology that uses drawing force to force wire rod or wire blank through the die hole of a drawing die to produce small cross-section steel wire. It has the characteristics of high finished product precision and smooth surface. However, during the drawing of steel wire, the friction between the steel wire and the drawing device may cause the fine steel wire to deform, resulting in wire tangling and affecting the wire drawing quality and effect of the steel wire thread sleeve.

[0004] 2. The mainstream wire drawing device for wire thread inserts is generally equipped with multiple drawing grooves of different sizes. The wire is drawn multiple times to achieve the target size. The wire needs to be repeatedly taken out and put into the wire drawing device, which makes the wire drawing work complicated, cumbersome and inefficient.

[0005] 3. A one-time forming steel wire drawing device usually consists of multiple drawing slots placed side by side. The steel wire passes through the drawing slots of different sizes in sequence to complete the drawing work. Although this setting can also complete the steel wire drawing work in one go, it occupies a large space.

[0006] To address these issues, we provide a wire pulling device for wire threaded inserts. Utility Model Content

[0007] The purpose of this utility model is to provide a wire drawing device for wire thread inserts. By setting up a first drawing wheel, a second drawing wheel, a liquid storage tank, and a fixed pulley, it solves the problems of wire deformation caused by temperature rise during the drawing process of existing wire thread insert drawing devices, the inability of some wire drawing devices to form wire in one go, and the large space occupied by wire drawing devices that can form wire in one go.

[0008] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0009] This utility model relates to a wire pulling device for a wire threaded insert, comprising a pulling assembly, two steering assemblies, and a liquid storage tank; the pulling assembly is located between the two steering assemblies;

[0010] The drawing assembly includes a first shaft and a second shaft. The second shaft is located above the first shaft. Five drawing wheels are rotatably connected in a linear array on the outer periphery of the first shaft. Each of the five drawing wheels is rotatably connected to a second shaft on the outer periphery. The higher ends of the five drawing wheels are respectively in contact with the lower ends of the second drawing wheels above them. The drawing wheels and the second drawing wheels are provided with V-shaped drawing grooves on their periphery. A liquid storage tank is provided below the first shaft, and the lower part of the drawing wheels extends into the liquid storage tank.

[0011] The storage tank contains coolant (such as water, drawing fluid, or other cooling media). During the drawing process, drawing wheel one and drawing wheel two rotate in opposite directions. The steel wire enters the drawing groove for drawing and is eventually drawn to the target size. During the rotation of drawing wheel one, some of the coolant in the storage tank moves into the drawing groove to cool the steel wire being drawn and prevent it from deforming.

[0012] The steering assembly includes a steering shaft, and a fixed pulley is provided on the outer periphery of the middle part of the steering shaft. A pulley groove is provided on the periphery of the fixed pulley, and the center height of the pulley groove is consistent with the tangential height of the first and second pulley wheels.

[0013] The steel wire, after being drawn through the large-size drawing groove, moves toward the steering assembly and enters the pulley groove. The fixed pulley and steering shaft rotate with the movement of the steel wire. The drawing groove guides the steel wire to the small-size drawing groove for further drawing. This process is repeated until the steel wire is drawn to the target size.

[0014] Furthermore, the pulling assembly also includes two support plates, the first shaft and the second shaft are located between the opposite faces of the two support plates, and the two ends of the first shaft and the second shaft are respectively fixedly connected to the two support plates;

[0015] The support plate provides support for the drawing assembly, enabling the wire drawing operation to proceed normally and stably. At the same time, the fixed connection between the support plate and shaft cylinder one and shaft cylinder two, the rotatable connection between shaft cylinder one and drawing wheel one, and the rotatable connection between shaft cylinder two and drawing wheel two allow drawing wheel one and drawing wheel two to rotate along the central axes of shaft cylinder one and shaft cylinder two respectively, making the drawing operation more stable.

[0016] Furthermore, the rotation direction of each of the first drawing wheels is opposite to the rotation direction of the second drawing wheel above it, and the rotation directions of two adjacent first drawing wheels are opposite. The opposite rotation direction of the first drawing wheel and the second drawing wheel above it allows the drawing work to proceed smoothly. The opposite rotation direction of two adjacent first drawing wheels enables the steel wire to be turned and drawn, allowing the steel wire to be formed in one go.

[0017] Furthermore, the drawing groove of each of the first drawing wheels and the drawing groove of the second drawing wheel above them form a diamond-shaped opening at a close position. The size of the diamond-shaped opening formed by the drawing grooves decreases from the left side of the drawing assembly to the right side of the drawing assembly. The decreasing size of the diamond-shaped opening allows the steel wire to be drawn into smaller and smaller steel wires step by step, ultimately completing the wire drawing work of the wire thread sleeve.

[0018] Furthermore, the two steering components are arranged diagonally, and the diameter of the inner pulley groove of the fixed pulley is consistent with the distance between the inner pulling grooves of the two adjacent pulling wheels. Since the diameter of the inner pulley groove of the fixed pulley is consistent with the distance between the inner pulling grooves of the pulling wheels, when the wire is being turned, the fixed pulley can directly guide the wire to the next diamond-shaped groove without colliding with the pulling components and causing damage to the wire.

[0019] Furthermore, the steering assembly also includes a frame, the frame having a through slot, the slot being open on both the side closest to and furthest from the pulling assembly, and two steering shafts arranged in a linear array inside the slot, the top of the steering shafts being rotatably connected to the inner wall of the frame at the top of the slot, and the bottom of the steering shafts being rotatably connected to the inner wall of the frame at the bottom of the slot.

[0020] The frame provides support for the steering assembly, enabling the entire steering assembly to function properly. The steering shaft and fixed pulley rotate around the central axis of the steering shaft to guide the steel cable in steering. At the same time, the four steering shafts can complete the steering of the steel cable, saving costs.

[0021] Furthermore, the pulling assembly, the two steering assemblies, and the bottom of the liquid storage tank are all fixedly connected to a workbench; the workbench provides support for the entire wire pulling device of the wire thread sleeve.

[0022] This utility model has the following beneficial effects:

[0023] This invention solves the problem of steel wire deformation caused by temperature rise during the drawing process by setting up a first drawing wheel, a second drawing wheel, and a liquid storage tank. The first and second drawing wheels rotate in opposite directions to draw the steel wire. The liquid storage tank contains coolant (such as water, drawing fluid, or other cooling media). Because the first drawing wheel extends into the liquid storage tank, its rotation can drive the coolant in the liquid storage tank to move into the drawing groove, thereby cooling the drawing process and preventing the steel wire from deforming due to high temperature, thus protecting the steel wire.

[0024] This invention solves the problem that steel wire drawing devices cannot form steel wire in one go by setting up a drawing component and a steering component. The steel wire is first drawn to a smaller size by the large drawing grooves opened on the sides of the first and second drawing wheels. Then, it is turned by the steering component into a smaller drawing groove for drawing. This process is repeated to achieve the purpose of forming the steel wire in one go.

[0025] This invention solves the problem of large space occupation in one-time forming steel wire drawing devices by setting a steering component. After being drawn through the large drawing groove, the steel wire moves towards the steering component, and then moves towards the small drawing groove through the steering component. This process is repeated until the steel wire is drawn to the target size. The setting of the steering component allows the steel wire drawing work to be completed on the workbench, thus saving space.

[0026] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of a wire pulling device for a wire threaded insert.

[0029] Figure 2 This is a schematic diagram showing the state of a wire pulling device for a wire threaded insert during wire pulling operations.

[0030] Figure 3 This is a schematic diagram of the drawing assembly and the liquid storage tank.

[0031] Figure 4 This is a schematic diagram of the connection structure of shaft cylinder one, drawing wheel one, shaft cylinder two, and drawing wheel two.

[0032] Figure 5 This is a schematic diagram of the steering assembly.

[0033] Figure 6 This is a schematic diagram of the connection structure between the steering shaft and the fixed pulley.

[0034] The attached diagram lists the components represented by each number as follows:

[0035] 1. Pulling assembly; 101. Workbench; 102. Support plate; 103. Shaft cylinder one; 104. Pulling wheel one; 105. Shaft cylinder two; 106. Pulling wheel two; 107. Pulling groove; 2. Steering assembly; 201. Frame; 202. Steering shaft; 203. Fixed pulley; 204. Pulley groove; 3. Liquid storage tank. Detailed Implementation

[0036] 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 skilled in the art without creative effort are within the protection scope of the present utility model. Specific Implementation

[0037] Please see Figure 1-3 This utility model is a wire drawing device for wire thread sleeves, including a drawing assembly 1 and a liquid storage tank 3. The drawing assembly 1 includes a first shaft cylinder 103 and a second shaft cylinder 105. The second shaft cylinder 105 is located above the first shaft cylinder 103. Five drawing wheels 104 are rotatably connected in a linear array on the outer periphery of the first shaft cylinder 103. Each of the five drawing wheels 104 is rotatably connected to a second drawing wheel 106 on the outer periphery of the second shaft cylinder 105 above the first shaft cylinder 104. The higher ends of the five drawing wheels 104 are respectively attached to the lower ends of the second drawing wheels 106 above them. The circumference of the first drawing wheels 104 and the second drawing wheels 106 are provided with drawing grooves 107 with a V-shaped cross section. The liquid storage tank 3 is provided below the first shaft cylinder 103. The lower part of the first drawing wheel 104 extends into the interior of the liquid storage tank 3.

[0038] A drawing machine is installed in the forward direction of the steel wire. The drawing machine clamps the steel wire and pulls it, causing the steel wire to pass through the gap between drawing wheel 104 and drawing wheel 206. Because the higher end of drawing wheel 104 is in contact with the lower end of drawing wheel 206, the steel wire is pulled through the gap between drawing wheel 104 and drawing wheel 206. During the pulling process, drawing wheel 104 and drawing wheel 206 rotate in opposite directions. The steel wire being pulled by the drawing machine moves towards the drawing groove 107 between drawing wheel 104 and drawing wheel 206. As the drawing wheels 106 rotate in opposite directions, the steel wire is squeezed and drawn into smaller sizes as it passes through the drawing groove 107. After multiple drawing operations, the steel wire is finally drawn to the target size for further processing. The storage tank 3 contains coolant (such as water, drawing fluid, or other cooling media). Since the lower part of the drawing wheel 104 extends into the storage tank 3, the drawing wheel 104 will drive some of the coolant in the storage tank 3 to move into the drawing groove 107 during rotation, cooling the drawn steel wire and preventing deformation during the drawing process.

[0039] Among them, such as Figure 1-3 As shown, the pulling assembly 1 also includes two support plates 102, and shaft cylinder one 103 and shaft cylinder two 105 are located between the opposite surfaces of the two support plates 102, and the two ends of shaft cylinder one 103 and shaft cylinder two 105 are respectively fixedly connected to the two support plates 102.

[0040] The support plate 102 provides support for the drawing assembly 1, enabling the wire drawing operation to proceed normally and stably. The fixed connection between the support plate 102 and the first shaft cylinder 103 and the second shaft cylinder 105, the rotatable connection between the first shaft cylinder 103 and the first drawing wheel 104, and the rotatable connection between the second shaft cylinder 105 and the second drawing wheel 106 allow the first drawing wheel 104 and the second drawing wheel 106 to rotate around the central axis of the first shaft cylinder 103 and the second shaft cylinder 105 respectively, so as to carry out the drawing operation smoothly without damaging the wire during the drawing operation and improve the wire drawing yield.

[0041] Among them, such as Figure 1-4 As shown, the rotation direction of each pulling wheel 104 is opposite to the rotation direction of the pulling wheel 2 106 above it, and the rotation directions of two adjacent pulling wheels 104 are opposite. The opposite rotation direction of the pulling wheel 104 and the pulling wheel 2 106 above it allows the pulling work to proceed smoothly. The opposite rotation direction of two adjacent pulling wheels 104 can realize the turning and pulling work of the steel wire, so that the steel wire can be formed in one go.

[0042] Among them, such as Figure 4As shown, the drawing groove 107 of each drawing wheel 104 and the drawing groove 107 of the drawing wheel 2 106 above it form a diamond-shaped slot in close proximity. The size of the diamond-shaped slot formed by the drawing grooves 107 decreases from the left side to the right side of the drawing assembly 1. With the diamond-shaped slot size decreasing from left to right, the steel wire is first drawn through the left diamond-shaped slot and then through the smaller diamond-shaped slot on the right. This allows the wire to be drawn into smaller sizes step by step, ultimately completing the wire drawing work of the wire thread sleeve.

[0043] The working principle of this embodiment is as follows: During the wire drawing process, because the higher end of the drawing wheel 104 is in contact with the lower end of the drawing wheel 106 above it, under the pulling action of the drawing machine, the wire first moves towards the left-hand diamond-shaped groove. The drawing wheel 106 rotates in opposite directions to the drawing wheel 104, and the wire enters the diamond-shaped groove. Subsequently, the drawing machine continues to pull the wire, and when it passes through the diamond-shaped groove between the drawing wheel 104 and the drawing wheel 106, the wire is squeezed and drawn. Small-sized steel wires are then drawn into even smaller drawing grooves 107 for further drawing. After multiple drawing operations, the steel wires are finally drawn to the target size for the next processing step. As the drawing wheel 104 rotates, because the lower part of the drawing wheel 104 extends into the liquid storage tank 3, the drawing wheel 104 will drive some of the coolant inside the liquid storage tank 3 to move into the drawing groove 107, cooling the steel wires being drawn and preventing deformation of the steel wires during the drawing process. Specific Implementation

[0044] Please see Figure 1 , Figure 2 Based on the first specific embodiment, the wire pulling device of the wire thread sleeve also includes two steering components 2. The pulling component 1 is located between the two steering components 2. The steering component 2 includes a steering shaft 202. A fixed pulley 203 is provided on the outer periphery of the middle part of the steering shaft 202. A pulley groove 204 is opened on the periphery of the fixed pulley 203. The center height of the pulley groove 204 is consistent with the tangential height of the first pulling wheel 104 and the second pulling wheel 106.

[0045] After being drawn through the large-size drawing groove 107, the steel wire moves towards the steering assembly 2 and enters the pulley groove 204. Subsequently, the fixed pulley 203 rotates around the central axis of the steering shaft 202, guiding the steel wire to the small-size drawing groove 107 for further drawing. This process is repeated until the steel wire is drawn to the target size. Since the center height of the pulley groove 204 is consistent with the sectional height of the first drawing wheel 104 and the second drawing wheel 106, the steel wire moves repeatedly between the pulley groove 204 and the drawing groove 107 on the same horizontal plane, preventing damage to the steel wire when it moves between the pulley groove 204 and the drawing groove 107.

[0046] Among them, such as Figure 1 , Figure 2 As shown, the two steering components 2 are arranged diagonally, and the diameter of the pulley groove 204 inside the fixed pulley 203 is the same as the spacing of the pull grooves 107 inside the two adjacent pull wheels 104.

[0047] Since the diameter of the pulley groove 204 inside the fixed pulley 203 is the same as the spacing of the pulling grooves 107 inside the two adjacent pulling wheels 104, when the wire is turned, the wire moving from the left side of the fixed pulley 203 to the pulley groove 204 can be guided by the fixed pulley 203 to the right side of the fixed pulley 203, and then move to the next smaller diamond-shaped groove. The wire will not collide with the pulling assembly 1 and cause damage to the wire.

[0048] Among them, such as Figure 5 As shown, the steering assembly 2 also includes a frame 201. A slot is provided through the inside of the frame 201. The slot is open on both the side near and away from the pull-out assembly 1. Two steering shafts 202 are arranged in a linear array inside the slot. The top of the steering shaft 202 is rotatably connected to the inner wall of the frame 201 at the top of the slot, and the bottom of the steering shaft 202 is rotatably connected to the inner wall of the frame 201 at the bottom of the slot.

[0049] The frame 201 provides support for the steering assembly 2, enabling the entire steering assembly 2 to work normally. The two steering shafts 202 can rotate around the central axis of the steering shafts 202. At the same time, the fixed pulleys 203 fixed around the steering shafts 202 will also rotate to guide the steel wire in steering. The four steering shafts 202 can complete all the steering work of the steel wire, saving costs.

[0050] Among them, such as Figure 1 , Figure 2 As shown, the bottom of the pulling assembly 1, the two steering assemblies 2, and the liquid storage tank 3 are all fixedly connected to the workbench 101; the workbench 101 provides support for the entire wire pulling device of the wire thread sleeve.

[0051] The working principle of this embodiment is as follows: After being drawn by the large-size drawing groove 107, the steel wire moves towards the steering assembly 2 and enters the pulley groove 204. Subsequently, the fixed pulley 203 rotates around the central axis of the steering shaft 202, guiding the steel wire to move towards the small-size drawing groove 107 for further drawing. After four steering operations, five drawing operations can be completed, drawing the steel wire to the target size. The setting of the steering assembly 2 and the drawing assembly 1 not only allows the steel wire to be drawn into shape in one go, but also saves space.

[0052] The above are merely preferred embodiments of the present utility model and do not limit the present utility model. Any modifications, equivalent substitutions, or improvements made to the technical solutions described in the foregoing embodiments, or to some of the technical features, shall fall within the protection scope of the present utility model.

Claims

1. A wire drawing device for a wire threaded insert, comprising a drawing assembly (1), two steering assemblies (2), and a liquid storage tank (3); characterized in that: The pulling assembly (1) is located between the two steering assemblies (2); The drawing assembly (1) includes a first shaft cylinder (103) and a second shaft cylinder (105). The second shaft cylinder (105) is located above the first shaft cylinder (103). The outer periphery of the first shaft cylinder (103) is rotatably connected to five first drawing wheels (104) in a linear array. The outer periphery of the second shaft cylinder (105) above the five first drawing wheels (104) is rotatably connected to the second drawing wheel (106). The higher ends of the five first drawing wheels (104) are respectively attached to the lower ends of the second drawing wheel (106) above them. The circumference of the first drawing wheel (104) and the second drawing wheel (106) is provided with drawing grooves (107) with a V-shaped cross section. A liquid storage tank (3) is provided below the first shaft cylinder (103). The lower part of the first drawing wheel (104) extends into the liquid storage tank (3). The steering assembly (2) includes a steering shaft (202), a fixed pulley (203) is provided on the outer periphery of the middle part of the steering shaft (202), and a pulley groove (204) is provided on the periphery of the fixed pulley (203). The center height of the pulley groove (204) is consistent with the cross-sectional height of the first puller (104) and the second puller (106).

2. The wire pulling device for a wire threaded insert according to claim 1, characterized in that: The pulling assembly (1) also includes two support plates (102), the first shaft cylinder (103) and the second shaft cylinder (105) are located between the opposite surfaces of the two support plates (102), and the two ends of the first shaft cylinder (103) and the second shaft cylinder (105) are respectively fixedly connected to the two support plates (102).

3. The wire pulling device for a wire threaded insert according to claim 1, characterized in that: The rotation direction of each of the first pulling wheels (104) is opposite to the rotation direction of the second pulling wheel (106) above it, and the rotation directions of two adjacent first pulling wheels (104) are opposite.

4. The wire pulling device for a wire threaded insert according to claim 2, characterized in that: The drawing groove (107) of each of the first drawing wheel (104) and the drawing groove (107) of the second drawing wheel (106) above it form a diamond-shaped opening in close proximity. The size of the diamond-shaped opening formed by the drawing grooves (107) decreases from the left side of the drawing assembly (1) to the right side of the drawing assembly (1).

5. The wire pulling device for a wire threaded insert according to claim 1, characterized in that: The two steering components (2) are arranged diagonally, and the diameter of the pulley groove (204) in the fixed pulley (203) is the same as the spacing of the pull groove (107) in the two adjacent pull wheels (104).

6. The wire pulling device for a wire threaded insert according to claim 1, characterized in that: The steering assembly (2) also includes a frame (201), which has a through slot. The slot is open on both the side closest to and furthest from the pulling assembly (1). Two steering shafts (202) are arranged in a linear array inside the slot. The top of the steering shaft (202) is rotatably connected to the inner wall of the frame (201) at the top of the slot, and the bottom of the steering shaft (202) is rotatably connected to the inner wall of the frame (201) at the bottom of the slot.

7. The wire pulling device for a wire threaded insert according to claim 1, characterized in that: The bottom of the pulling assembly (1), the two steering assemblies (2) and the liquid storage tank (3) are all fixedly connected to a workbench (101).

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