Automatic cooling type wire drawing apparatus
By introducing a cooling mechanism into the wire drawing equipment and utilizing the design of cooling spiral tubes and spiral blades, efficient cooling of the metal wire surface is achieved, solving the problem of high temperature of the wire after drawing and improving production efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI GULIAN FASTENER CO LTD
- Filing Date
- 2025-07-26
- Publication Date
- 2026-06-19
AI Technical Summary
Existing wire drawing equipment results in high surface temperatures of the metal wire after drawing, leading to increased workshop temperatures, which affects production efficiency and poses a risk of burns, especially during manual handling in high-temperature environments.
Design an automatic cooling wire drawing device. By installing a cooling mechanism inside the winding roller, the coolant is dynamically introduced and discharged using a cooling spiral tube and spiral blades. The coolant flow direction is opposite to the winding direction of the metal wire, forming a counter-cooling effect.
It achieves efficient cooling of the metal wire surface, reduces workshop temperature, improves production efficiency, avoids the risk of burns, and is suitable for continuous production in high-temperature environments.
Smart Images
Figure CN224372433U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bolt drawing technology, and in particular to an automatic cooling type drawing device. Background Technology
[0002] In existing technologies, such as the wire drawing machine disclosed on the Chinese patent website with publication number CN 105945088 B, a surface treatment is performed on rust-stained wires through a stripping mechanism to improve the strength and quality of the wires. Alternatively, well-treated, rust-free wires can be directly fed to the wire feeding mechanism, avoiding the inconvenience of switching between multiple devices. When the stripping mechanism is working, the wire feeding mechanism is not working, and vice versa. Both the stripping and feeding mechanisms are sorted and arranged by a coiling mechanism, and the wires are finally collected on a take-up rack after being arranged. Although this solves the problem of wire surface stripping, it still has the following shortcomings:
[0003] After wire drawing, the surface temperature of the metal wire becomes very high, directly radiating to the surrounding equipment. In summer, the workshop temperature is already high; adding the high temperature from the wire drawing process will further increase the workshop temperature. Furthermore, when there is a large demand for drawn wire, such as in the production of bolts and screws, the wire must first be drawn to meet the required bolt or screw specifications. This necessitates many wire drawing machines operating continuously for extended periods. If several or even a dozen wire drawing machines are operating simultaneously, the workshop temperature will inevitably be significantly higher than the outdoor temperature, which is detrimental to the workers' work.
[0004] If the high temperature on the surface of the wire cannot be reduced to around room temperature in a short time after drawing, it is easy to get burned when handling it manually. This requires waiting for it to cool down naturally, which is even more detrimental to production efficiency. Utility Model Content
[0005] Based on the existing technical problems, this utility model proposes an automatic cooling wire drawing device.
[0006] This utility model proposes an automatic cooling wire drawing device, including a machine body, the machine body including a bracket, a motor mounted on the bracket, and a winding roller driven by the motor to rotate. An electrical control box is also fixedly installed on one side of the bracket. A wire drawing die tangent to the outer surface of the winding roller is fixedly installed on the top of the electrical control box. After the metal wire is drawn by the wire drawing die, it is wound up by the winding roller. A main shaft is vertically installed at the center of the winding roller.
[0007] The roller is equipped with a cooling mechanism, which includes a cooling spiral tube installed near the outer surface of the roller, a circular tube movably installed at the center line of the main shaft, and spiral blades.
[0008] The coolant flows through the circular tube to the top of one of the spiral blades. As the spiral blade rotates, it forces the coolant from one end of the cooling spiral tube, and finally, the coolant is squeezed out from the other end of the cooling spiral tube by another rotating spiral blade.
[0009] Preferably, a mounting hole is provided at the center of the spindle, and the round tube is mounted to the top of the mounting hole by a bearing. The inner wall of the round tube is divided into two independent cavities along the diameter direction by a partition.
[0010] Preferably, the inner wall of the mounting hole is divided into two independent cavities by a bearing component. One cavity of the circular tube is connected to the upper cavity of the mounting hole, and the other cavity of the circular tube is connected to the lower cavity of the mounting hole by a water pipe.
[0011] Through the above technical solution, the two independent cavities can achieve precise control of the coolant flow direction, thereby achieving a controllable coolant cooling effect.
[0012] Preferably, the bottom of the main shaft has an annularly arranged water inlet chamber and water outlet chamber near the mounting hole, which are distributed vertically. The inner wall of the water inlet chamber is connected to the cavity above the mounting hole through a through hole, and the inner wall of the water outlet chamber is connected to the cavity below the mounting hole through a through hole.
[0013] The above technical solution can achieve the effect of dynamic inlet and outlet of coolant. Since the rotation speed of the roller is not high, the existing bearings and seals can be used so that the pipeline for coolant inlet and outlet does not need to rotate with the main shaft.
[0014] Preferably, the roller has symmetrical vertical holes inside near the cooling spiral tube, and a rotating shaft is movably installed on the inner top wall of the vertical hole through a detachable bearing. The outer surface of the rotating shaft is fixedly inserted into the axis of the spiral blade, and the two spiral blades rotate in opposite directions.
[0015] The rotating shaft drives the spiral blade to be movably inserted into the vertical hole through the bearing. Both vertical holes are connected to the water inlet chamber and the water outlet chamber respectively through connecting pipes.
[0016] The above technical solution allows the coolant to form a complete flow path by setting the two spiral blades in opposite directions.
[0017] Preferably, a gear is fixedly installed on the top surface of the rotating shaft, and a gear ring is fixedly installed on the inner top wall of the top of the roller, which is coaxial with the roller. The inner wall of the gear ring meshes with the outer surface of the gear. When the roller rotates, it drives the gear to revolve around the roller and rotate on its own axis, thereby driving the spiral blade to rotate, so as to realize the action of driving the coolant to flow.
[0018] Through the above technical solution, by meshing a large-diameter gear ring with a small-diameter gear, the rotating shaft can not only easily obtain a stable power source, but also convert the low rotational speed of the roller into a higher rotational speed through the gear ratio, thereby increasing the flow rate of the coolant and enhancing the cooling effect.
[0019] The beneficial effects of this utility model are as follows:
[0020] By setting up a cooling mechanism, automatic cooling can be achieved at the position of the winding roller near the outer surface. This allows for heat absorption cooling of the high temperature surface of the metal wire after it has been drawn. At the same time, the cooling direction is set opposite to the winding direction of the metal wire. After the metal wire is wound up, it falls from top to bottom, while the coolant flows from bottom to top, which can achieve a counter-cooling effect. This avoids the problem of cooling dead zones that occur when the cooling flow direction of the coolant is synchronized with the winding direction of the metal wire. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of an automatic cooling wire drawing device proposed in this utility model;
[0022] Figure 2 This is a perspective view of the roller of an automatic cooling wire drawing device proposed in this utility model;
[0023] Figure 3 This is a perspective view of a winding bracket for an automatic cooling type wire drawing device proposed in this utility model;
[0024] Figure 4 A perspective view of the vertical hole of an automatic cooling wire drawing device proposed in this utility model;
[0025] Figure 5 This is a perspective view of the cooling spiral tube connection of an automatic cooling wire drawing device proposed in this utility model;
[0026] Figure 6 This is a perspective view of the gear and gear ring installation of an automatic cooling wire drawing device proposed in this utility model;
[0027] Figure 7 This is a three-dimensional sectional view of the spindle of an automatic cooling wire drawing device proposed in this utility model.
[0028] In the diagram: 1. Machine body; 2. Support frame; 3. Motor; 4. Roller; 41. Cooling spiral tube; 42. Round tube; 43. Spiral blade; 44. Partition plate; 45. Bearing component; 46. Water inlet chamber; 47. Water outlet chamber; 48. Through hole; 49. Shaft; 410. Connecting pipe; 411. Gear; 412. Gear ring; 413. Water pipe; 414. Vertical hole; 415. Waterproof gasket; 5. Main shaft; 51. Bevel gear set; 6. Wire drawing die; 7. Electrical control box; 8. Metal wire; 9. Winding bracket; 10. Pressure roller; 101. Hydraulic cylinder; 102. U-shaped frame. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0030] Reference Figures 1-7 An automatic cooling type wire drawing device, such as Figure 1 As shown, the machine includes a body 1, which includes a bracket 2, a motor 3 mounted on the bracket 2, and a winding roller 4 driven by the motor 3. An electrical control box 7 is also fixedly mounted on one side of the bracket 2. A wire drawing die 6 tangent to the outer surface of the winding roller 4 is fixedly mounted on the top of the electrical control box 7. After the metal wire 8 is drawn by the wire drawing die 6, it is wound up by the winding roller 4. A movable and rotatable winding bracket 9 can be set directly below the winding roller 4, thus enabling the winding of the drawn metal wire 8. After winding is complete, an empty winding bracket 9 can be directly replaced to continue winding. The winding bracket 9 is rotatable because the metal wire 8 itself has a certain rotational speed when wound by the winding roller 4. At this time, the rotational torque of the metal wire 8 itself can be used to drive the winding bracket 9 to rotate, eliminating the need for a separate drive source for the winding bracket 9.
[0031] like Figures 1-2 As shown, in order to increase the adhesion between the metal wire 8 and the surface of the roller 4, multiple pressure rollers 10 are arranged in a ring array around the outer surface of the roller 4 on the bracket 2. A hydraulic cylinder 101 is then fixedly installed on the bracket 2. A U-shaped frame 102 is fixedly installed on the outer end of the piston rod of the hydraulic cylinder 101. The two ends of the U-shaped frame 101 are then installed on the two ends of the pressure roller 10 through bearings. By controlling the extension and retraction of the hydraulic cylinder 101, the distance between the pressure roller 10 and the outer surface of the roller 4 is controlled. This distance can tightly press the metal wire 8 onto the surface of the roller 4.
[0032] For ease of installation and maintenance, a main shaft 5 is vertically mounted at the center of the roller 4. The top of the main shaft 5 is connected to the motor 3 via a bevel gear set 51. The main shaft 5 is then mounted to the bracket 2 via an end face bearing. The end face bearing has a high load-bearing capacity and can withstand the weight of the roller 4. Installation is convenient, and maintenance only requires removing the motor 3.
[0033] like Figure 1 , Figures 3-7 As shown, in order to cool the drawn metal wire, a cooling mechanism is installed inside the roller 4. The cooling mechanism includes a cooling spiral tube 41 installed near the outer surface of the roller 4, a circular tube 42 movably installed at the axis of the main shaft 5, and a spiral blade 43.
[0034] The coolant flows through the circular tube 42 to the top of one of the spiral blades 43. When the spiral blade 43 rotates, it forces the coolant from one end of the cooling spiral tube 41. Finally, the coolant is squeezed out from the other end of the cooling spiral tube 41 by another rotating spiral blade 43.
[0035] The cooling effect is achieved as follows: a mounting hole is provided at the center of the spindle 5, and the round tube 42 is mounted to the top of the mounting hole through a bearing. The inner wall of the round tube 42 is divided into two independent cavities along the diameter direction by a partition 44.
[0036] Furthermore, the inner wall of the mounting hole is divided into two independent cavities by a bearing component 45. One cavity of the circular tube 42 is connected to the upper cavity of the mounting hole, and the other cavity of the circular tube 42 is connected to the lower cavity of the mounting hole via a water pipe 413. The two independent cavities enable precise control of the coolant flow direction, thereby achieving a controllable cooling effect.
[0037] To achieve dynamic inflow and outflow of coolant, an inlet chamber 46 and an outlet chamber 47 are annularly arranged at the bottom of the main shaft 5 near the mounting hole, distributed vertically. The inner wall of the inlet chamber 46 communicates with the upper cavity of the mounting hole through a through hole 48, and the inner wall of the outlet chamber 47 communicates with the lower cavity of the mounting hole through a through hole 48. This achieves the effect of dynamic inflow and outflow of coolant. Since the rotational speed of the roller 4 is not high, existing bearings and seals can be used so that the coolant inflow and outflow pipes do not need to rotate with the main shaft.
[0038] To enable the coolant to be driven, vertical holes 414 are symmetrically formed inside the roller 4 near the cooling spiral tube 41. A rotating shaft 49 is movably mounted on the inner top wall of each vertical hole 414 via a detachable bearing. The outer ring of the bearing can be threaded; this thread can be a fine thread, and the tightening direction can be the same as the rotation direction of the gear 411, ensuring it will not loosen during use. This allows for the detachable and movable mounting of the rotating shaft 49 to the vertical hole 414. Simultaneously, at least one waterproof washer 415 can be installed on the bottom end face of the fine-threaded bearing for sealing and waterproofing. The outer surface of the rotating shaft 49 is fixedly inserted into the axis of the spiral blade 43, with the two spiral blades 43 rotating in opposite directions.
[0039] The rotating shaft 49 drives the spiral blade 43 to be movably inserted into the vertical hole 414 via a bearing. The outer surface of the spiral blade 43 is slidably sleeved with the inner wall of the vertical hole 414. When the coolant enters the bottom of the vertical hole 414, the spiral blade 43 spirals and lifts the coolant. Both vertical holes 414 are connected to the water inlet chamber 46 and the water outlet chamber 47 respectively through connecting pipes 410. The opposite rotation directions of the two spiral blades 43 enable the coolant to form a complete flow path, and finally the coolant flows back out from the connecting pipe 410 at the top of the vertical hole 414.
[0040] In order for the spiral blade 43 to rotate automatically, a gear 411 is fixedly installed on the top surface of the rotating shaft 49. A gear ring 412, which is coaxially distributed with the roller 4, is fixedly installed on the inner top wall of the bracket 2 located on the top of the roller 4. The inner wall of the gear ring 412 meshes with the outer surface of the gear 411. When the roller 4 rotates, it drives the gear 411 to revolve around the roller 4 and rotate on its own axis, thereby driving the spiral blade 43 to rotate, so as to realize the action of driving the coolant to flow. By meshing a large-diameter gear ring 412 with a small-diameter gear 411, the gear ratio between the gear ring 412 and the gear 411 is between 1:15 and 20. This allows the rotational speed of the roller 4 to be amplified by 15-20 times through the gear ratio. If the rotational speed of the roller 4 is 1 r / s, the rotational speed of the gear 411 will be between 900 r / min and 1200 r / min. Even at 0.5 r / s, the rotational speed of the gear 411 will be between 450 r / min and 600 r / min. This ensures that the rotational speed of the shaft 49 is sufficient to drive the spiral blades 43 to expel the coolant. This allows the shaft 49 to easily obtain a stable power source and, through the gear ratio, convert the lower rotational speed of the roller 4 into a higher rotational speed, thereby increasing the flow rate of the coolant and enhancing the cooling effect.
[0041] By setting a cooling mechanism, the cooling effect of the area near the outer surface of the winding roller 4 can be automatically achieved, thereby enabling heat absorption cooling of the high temperature surface of the metal wire 8 that has just been drawn. At the same time, the cooling direction is set opposite to the winding direction of the metal wire 8. After the metal wire 8 is wound up, it falls from top to bottom, and the coolant flows from bottom to top, which can have a counter-cooling effect and avoid the problem of cooling dead zones caused when the cooling flow direction of the coolant is synchronized with the winding direction of the metal wire 8.
[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. An automatic cooling wire drawing device, comprising a body (1), the body (1) comprising a bracket (2), a motor (3) mounted on the bracket (2) and a winding roller (4) driven to rotate by the motor (3), an electrical control box (7) is also fixedly mounted on one side of the bracket (2), a wire drawing die (6) tangent to the outer surface of the winding roller (4) is fixedly mounted on the top of the electrical control box (7), and the metal wire (8) is drawn by the wire drawing die (6) and then wound by the winding roller (4), and a main shaft (5) is vertically mounted at the center of the winding roller (4); Its features are: The inside of the roller (4) is equipped with a cooling mechanism, which includes a cooling spiral tube (41) installed near the outer surface of the roller (4), a circular tube (42) movably installed at the center line of the main shaft (5), and a spiral blade (43). The coolant flows through the circular tube (42) to the top of one of the spiral blades (43). When the spiral blade (43) rotates, it forces the coolant from one end of the cooling spiral tube (41). Finally, the coolant is squeezed out from the other end of the cooling spiral tube (41) by another rotating spiral blade (43).
2. The automatic cooling wire drawing equipment according to claim 1, characterized in that: The spindle (5) has an installation hole at its center. The round tube (42) is installed on the top of the installation hole by a bearing. The inner wall of the round tube (42) is divided into two independent cavities along the diameter direction by a partition (44).
3. The automatic cooling wire drawing equipment according to claim 2, characterized in that: The inner wall of the mounting hole is divided into two independent cavities by a bearing component (45). One cavity of the round tube (42) is connected to the upper cavity of the mounting hole, and the other cavity of the round tube (42) is connected to the lower cavity of the mounting hole by a water pipe (413).
4. The automatic cooling wire drawing equipment according to claim 3, characterized in that: The bottom of the main shaft (5) is provided with an inlet chamber (46) and an outlet chamber (47) arranged in an annular shape near the mounting hole. The inner wall of the inlet chamber (46) is connected to the cavity above the mounting hole through a through hole (48), and the inner wall of the outlet chamber (47) is connected to the cavity below the mounting hole through a through hole (48).
5. The automatic cooling type wire drawing equipment according to claim 4, characterized in that: The roller (4) has vertical holes (414) symmetrically opened inside the cooling spiral tube (41). A rotating shaft (49) is movably installed on the inner top wall of the vertical hole (414) through a detachable bearing. The outer surface of the rotating shaft (49) is fixedly inserted into the axis of the spiral blade (43). The two spiral blades (43) have opposite rotation directions. The rotating shaft (49) drives the spiral blade (43) to be movably inserted into the vertical hole (414) through the bearing. Both vertical holes (414) are connected to the water inlet chamber (46) and the water outlet chamber (47) respectively through the connecting pipe (410).
6. The automatic cooling type wire drawing equipment according to claim 5, characterized in that: A gear (411) is fixedly installed on the top surface of the rotating shaft (49). A gear ring (412) is fixedly installed on the inner top wall of the top of the roller (4) and is coaxially distributed with the roller (4). The inner wall of the gear ring (412) meshes with the outer surface of the gear (411). When the roller (4) rotates, it drives the gear (411) to revolve around the roller (4) and rotate on its own axis, thereby driving the spiral blade (43) to rotate, so as to realize the action of driving the coolant to flow.