Take-up mechanism based on tension maintenance and wire drawing speed measurement and wire drawing machine
By using a torque-controlled servo motor and speed sensor in the take-up mechanism, the tension of the filament and the take-up speed can be monitored and adjusted in real time, which solves the problem of slow tension adjustment in traditional take-up mechanisms and improves the stability of the drawing quality of fine filaments.
Patent Information
- Application Number
- CN202422586410.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-25
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-10-25
AI Technical Summary
In existing wire drawing machines, the tension adjustment mechanism is not fast enough, which leads to defects in the quality of the wire, especially when drawing fine wire. The problem is more pronounced when drawing fine wire. Traditional counterweight mechanisms have large inertia and long response time, making it difficult to meet the quality requirements of fine wire.
The system employs a torque-controlled servo motor and a speed sensor to monitor the swing arm angle and drawing speed in real time. The torque-controlled servo motor provides the corresponding torque, which in turn controls the speed of the take-up servo motor in real time, ensuring that the filament maintains constant tension and a consistent take-up speed.
It achieves rapid adjustment and constant tension of the filament, improves the drawing quality stability of fine filaments, and is suitable for drawing even finer filaments. It overcomes the problems of slow adjustment and long response time caused by the large inertia of traditional counterweight mechanisms.
Smart Images
Figure CN223465336U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to take up mechanism field technology especially is based on the take up mechanism and wire drawing machine of tension keeping and wire drawing speed of a kind of. BACKGROUND
[0002] Wire drawing machine (or called wire drawing machine, wire drawing machine), it is mainly used in machinery manufacturing, hardware processing, wire and cable industries, generally is metal wire drawing machine, it belongs to standard parts and other metal products production pre-processing equipment, purpose is to make wire rod by metal products production enterprise after the drawing treatment of wire drawing machine, the diameter, roundness, internal metallographic structure, surface finish and straightening degree of wire rod reach the raw material processing requirement needed by standard parts and other metal products production. Wire drawing machine mainly includes pay-off device, wire drawing device and take-up device, wire rod is payed off by pay-off device, then is drawn by wire drawing device, then, the wire after wire drawing is wound by take-up device.
[0003] As Figure 5 Shown, it shows the take-up mechanism of a kind of wire drawing machine in prior art, it includes guide wheel 1, tension adjusting wheel 2 and take-up wheel (take-up wheel is not shown in Figure 5 ), its tension adjusting wheel 2 can swing, angle sensor is used to adjust the tension of take-up mechanism with counterweight mechanism, but, counterweight mechanism inertia is big, adjustment is not fast enough, reaction time is long, it is not conducive to the stability of wire drawing quality, there is the hidden danger that quality defect of wire rod is caused by tension change, especially, if drawing thinner wire rod, its quality defect is more obvious, it is difficult to meet the demand of drawing thinner wire rod.
[0004] Therefore, a new technical scheme needs to be researched to solve the above problems. CONTENT OF UTILITY MODEL
[0005] Therefore, the utility model mainly aims at the lack of prior art, and its main purpose is to provide a kind of take-up mechanism and wire drawing machine based on tension keeping and wire drawing speed, and the reaction time of torsion control servo motor adjustment is short, and the torsion can be adjusted quickly to make wire rod keep constant tension.
[0006] To achieve the above object, the utility model adopts the following technical scheme:
[0007] A kind of take-up mechanism based on tension keeping and wire drawing speed, it includes:
[0008] The first guide pulley has a rotating shaft extending forward and backward; the first guide pulley is connected with a swing arm, one end of the swing arm is connected with the first guide pulley, the other end of the swing arm is connected with a torsion control servo motor, and the rotating shaft of the torsion control servo motor is connected with the other end of the swing arm; the first guide pulley rotates up and down around the forward and backward axis where the other end of the swing arm is located along with the swing arm; the encoder of the torsion control servo motor acquires the position of the rotating shaft in real time to understand the current angle of the swing arm;
[0009] The drawing speed pulley has a rotating shaft extending forward and backward; the drawing speed pulley is provided with a speed sensor;
[0010] The take-up reel has a winding area with a winding shaft extending forward and backward; the take-up reel is connected with a take-up servo motor, and the take-up servo motor drives the take-up reel to rotate;
[0011] The torsion control servo motor, the speed sensor and the take-up servo motor are connected with a control system respectively.
[0012] As a preferred solution, the control system controls the torsion control servo motor to provide corresponding torsion according to the current angle of the swing arm, and controls the rotating speed of the take-up servo motor in real time according to the trend of swing floating of the swing arm and the wire drawing speed fed back by the speed sensor.
[0013] As a preferred solution, the drawing speed pulley is located below the first guide pulley, and the wire passes through the drawing speed pulley and then passes through the first guide pulley.
[0014] As a preferred solution, a second guide pulley is arranged above the right of the first guide pulley, the rotating shaft of the second guide pulley extends forward and backward; the wire passes through the first guide pulley, then passes through the second guide pulley, and then winds on the take-up reel.
[0015] As a preferred solution, the second guide pulley is located above the left of the take-up reel.
[0016] As a preferred solution, the wire winds into the top left of the drawing speed pulley, and winds out from the bottom of the drawing speed pulley to the left obliquely upward along the right side of the drawing speed pulley.
[0017] As a preferred solution, the wire winds into the bottom left of the first guide pulley, and winds out from the bottom of the first guide pulley to the right obliquely upward.
[0018] As a preferred solution, the wire winds into the top left of the second guide pulley, and winds out from the top of the second guide pulley to the right obliquely downward.
[0019] As a preferred solution, the wire material is wound from the top left side of the take-up wheel and is wound along the right side of the take-up wheel to the bottom.
[0020] A wire drawing machine comprises a wire unwinding mechanism, a wire drawing mechanism and a wire winding mechanism, wherein the wire unwinding mechanism is a wire winding mechanism based on tension keeping and wire drawing speed measurement.
[0021] Compared with the prior art, the wire drawing machine has obvious advantages and beneficial effects, specifically, according to the technical scheme, the other end of the swing arm is connected with a torsion control servo motor, the rotating shaft of the torsion control servo motor is connected to the other end of the swing arm, the first guide pulley rotates up and down around the front and rear axis at the other end of the swing arm along with the swing arm, the encoder of the torsion control servo motor obtains the position of the rotating shaft in real time to understand the current angle of the swing arm, the corresponding torsion is provided by the torsion control servo motor according to the current angle of the swing arm, so that the wire material keeps constant tension, the torsion control servo motor has short adjustment reaction time and can quickly adjust the torsion to keep the wire material at constant tension.
[0022] In addition, the rotating speed of the wire winding servo motor can be controlled in real time according to the swing floating trend of the swing arm and the wire drawing speed, so that the wire winding speed is consistent with the drawing speed, the inertia of the counterweight mechanism is overcome, the adjustment is not rapid and the reaction time is long, the wire drawing machine can be better applied to drawing of smaller wire material and is beneficial to the stability of wire drawing quality.
[0023] To make the structure characteristics and functions of the utility model clearer, the utility model will be described in detail below by combining with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS
[0024] Figure 1 is a perspective view of a wire winding mechanism based on tension keeping and wire drawing speed measurement according to an embodiment of the utility model;
[0025] Figure 2 is a front view of a wire winding mechanism based on tension keeping and wire drawing speed measurement according to an embodiment of the utility model;
[0026] Figure 3 is another perspective view of a wire winding mechanism based on tension keeping and wire drawing speed measurement according to an embodiment of the utility model;
[0027] Figure 4 is a wire winding diagram of a wire winding mechanism based on tension keeping and wire drawing speed measurement according to an embodiment of the utility model;
[0028] Figure 5 is a tension adjustment structure diagram of a wire winding mechanism of a wire drawing machine in the prior art.
[0029] The first guide pulley 301, the speed measuring pulley after drawing 302, the second guide pulley 303, the take-up wheel 304, the swing arm 305, the torque control servo motor 306, the speed sensor 307, the take-up servo motor 308, the speed reducer 309, the wire arranging motor 310, the wire arranging module 311, and the rotating shaft 312. DETAILED DESCRIPTION
[0030] Please refer to Figures 1 to 4 The specific structure of the embodiment of the utility model is shown.
[0031] In the description of the utility model, it needs to be explained that the terms "upper", "lower", "left", "right" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.
[0032] A take-up mechanism based on tension maintenance and wire drawing speed measurement, comprising a first guide pulley 301, a speed measuring pulley after drawing 302, a second guide pulley 303, a take-up wheel 304 and the like. The pulley generally refers to a wheel with a groove (for example, a V-shaped groove) on the periphery for passing the wire and capable of rotating around the shaft.
[0033] The first guide pulley 301 is provided with a rotating shaft extending forward and backward; the first guide pulley 301 is connected with a horizontally extending swing arm 305, one end of the swing arm 305 is connected to the first guide pulley 301, the other end of the swing arm 305 is connected with a torque control servo motor 306, and the rotating shaft 312 (provided with a rotating shaft extending forward and backward) of the torque control servo motor 306 is connected to the other end of the swing arm 305, the first guide pulley 301 rotates up and down around the front and rear axis L where the other end of the swing arm 305 is located along with the swing arm 305; the encoder of the torque control servo motor 306 obtains the position of the rotating shaft 312 in real time to understand the current angle of the swing arm 305.
[0034] The speed measuring pulley after drawing 302 is located below the first guide pulley 301, and the wire passes through the speed measuring pulley after drawing 302 and then passes through the first guide pulley 301. The speed measuring pulley after drawing 302 is provided with a rotating shaft extending forward and backward; the speed measuring pulley after drawing 302 is provided with a speed sensor 307 to detect the wire drawing speed after drawing, and in actual use, the wire diameter after drawing can also be calculated by comparing the unwinding speed.
[0035] The second guide pulley 303 is arranged above the right side of the first guide pulley 301 and in front of the wire winding wheel 304.
[0036] The wire winding wheel 304 is provided with a wire winding area extending forward and backward around the wire winding shaft. The wire winding wheel 304 is connected with a wire winding servo motor 308, and the wire winding servo motor 308 drives the wire winding wheel 304 to rotate. The wire winding servo motor 308 is usually connected with a speed reducer 309, and the speed reducer 309 drives the wire winding wheel 304 to rotate. After the wire is wound around the first guide pulley 301, the wire is wound around the second guide pulley 303 and then wound around the wire winding wheel 304. The wire winding wheel 304 is also connected with a front and back translation driving unit. The front and back translation driving unit drives the wire winding servo motor 308 and the wire winding wheel 304 to move forward and backward together, so that the wire is arranged forward and backward on the wire winding area, and the wire is neatly wound on the wire winding area. Usually, the front and back translation driving unit is a wire arrangement motor 310 and a wire arrangement module 311, which is called a linear module, a linear module, a Cartesian robot, a linear slide, etc.
[0037] The torque control servo motor 306, the speed sensor 307 and the wire winding servo motor 308 are connected to a control system. The control system controls the torque control servo motor 306 to provide corresponding torque according to the current angle of the swing arm 305, so that the wire maintains constant tension, and controls the rotating speed of the wire winding servo motor 308 in real time according to the swing floating trend of the swing arm 305 and the wire drawing speed, so that the wire winding speed is consistent with the drawing speed. The torque control servo motor 306 provides tension and feedback floating trend. Compared with the traditional technology of rotary point positioner (angle sensor) and counterweight mechanism, the torque control servo motor 306 can provide constant tension, short reaction time, overcome the shortcomings of large inertia of counterweight mechanism, slow adjustment and long reaction time, and can be better applied to drawing smaller wire. For example, the angle range of the swing arm 305 is 30° to 180°, and the swing arm 305 is arranged at a 90° position (for example Figure 4As shown), the PLC of the control system detects the angular position of the swing arm 305 in real time. When the angular position of the swing arm 305 is greater than 90°, the wire-taking servo motor 308 is controlled to decelerate until the angle of the swing arm 305 is close to 90° (a deviation value △θ is set, where close to 90° refers to 90°+△θ); when the position of the swing arm 305 decreases (i.e., less than 90°), the wire-taking servo motor 308 is controlled to accelerate until the angle of the swing arm 305 is close to 90° (a deviation value △θ is set, where close to 90° refers to 90°-△θ).
[0038] The arrangement of the post-drawing speed measuring pulley 302, the first guide pulley 301, the second guide pulley 303 and the take-up wheel 304 facilitates a smooth and stable wire-taking action.
[0039] like Figure 4 As shown, after the wire drawing is completed, the wire is wound obliquely downward from the top right side of the wire drawing mechanism, wound into from the top left side of the speed measuring pulley 302 after drawing, and wound obliquely upward to the left side along the right side of the speed measuring pulley 302 after drawing, and then wound through the left side and top of the wire drawing mechanism, and wound out obliquely downward from the top right side. Then, the wire is wound into from the bottom left side of the first guide pulley 301, and wound out obliquely upward to the right side along the bottom of the first guide pulley 301. Then, the wire is wound into from the top left side of the second guide pulley 303, and wound out obliquely downward to the right side along the top of the second guide pulley 303. Then, the wire is wound into from the top left side of the take-up wheel 304, and wound to the bottom along the right side of the take-up wheel 304.
[0040] Next, a wire drawing machine is provided, comprising a pay-off mechanism, a wire drawing mechanism, and a wire take-up mechanism. The pay-off mechanism is a wire take-up mechanism based on tension maintenance and wire drawing speed measurement as described in any of the preceding items. The wire drawing machine is primarily used for drawing metal wire (e.g., molybdenum wire), drawing the metal wire from a large wire diameter to a smaller wire diameter. Of course, the roundness, internal metallographic structure, surface finish, and straightness of the wire can also be adjusted as needed. The structure and functional configuration of the wire drawing mechanism can all be implemented using existing mature technologies and will not be further described in this article.
[0041] The utility model discloses a design emphasis lies in, it mainly is through the other end of swing arm 305 is connected with the torsion control servo motor 306, and the pivot of torsion control servo motor 306 is connected in the other end of swing arm 305, first guide pulley 301 is along with swing arm 305 rotates swing around the other end of swing arm 305 the up and down rotation of front and rear axis, the encoder of torsion control servo motor 306 real -time acquisition pivot position to understand the current angle of swing arm 305, according to the current angle of swing arm 305 control torsion control servo motor 306 provides corresponding torsion, so that the wire material keeps constant tension, and its torsion control servo motor 306 adjusts reaction time short, can rapidly adjust torsion to make wire material keep constant tension.
[0042] And, can according to the trend of swing floating of swing arm 305, wire drawing speed, to real -time control the rotating speed of take -up servo motor 308, so that the wire drawing speed and drawing speed keep consistent, overcome the inertia of counterweight mechanism big and lead to the shortcoming of not enough quick adjustment, reaction time long, can be better applicable to draw thinner wire material, be favorable to the stability of wire drawing quality.
[0043] The above, only is the preferred embodiment of the utility model, does not make any limit to the technical range of the utility model, so any subtle modification, equivalent change and modification of the above embodiment according to the technical essence of the utility model, still belong to the range of the utility model technical scheme.
Claims
1. A take-up mechanism based on tension maintenance and speed measurement of wire drawing, characterized in that, The application relates to a wire drawing mechanism based on tension keeping and wire drawing speed measurement. A first guide pulley with an axis extending forward and backward; the first guide pulley is connected with a swing arm, one end of the swing arm is connected with the first guide pulley, the other end of the swing arm is connected with a torsion control servo motor, and the axis of the torsion control servo motor is connected with the other end of the swing arm; the first guide pulley rotates up and down around the axis of the other end of the swing arm along with the swing arm; the encoder of the torsion control servo motor obtains the position of the axis in real time to understand the current angle of the swing arm; A wire drawing speed measurement pulley with an axis extending forward and backward; the wire drawing speed measurement pulley is provided with a speed measurement sensor; A take-up reel with a winding area extending forward and backward around a winding shaft; the take-up reel is connected with a take-up servo motor, and the take-up reel is driven to rotate by the take-up servo motor; The torsion control servo motor, the speed measurement sensor and the take-up servo motor are connected with a control system respectively.
2. A take-up mechanism based on tension maintenance and wire drawing speed measurement according to claim 1, characterized in that, The control system controls the torsion control servo motor to provide corresponding torsion according to the current angle of the swing arm, and controls the rotating speed of the take-up servo motor in real time according to the trend of swing floating of the swing arm and the wire drawing speed fed back by the speed measurement sensor.
3. A take-up mechanism based on tension maintenance and wire drawing speed measurement according to claim 1 or 2, characterized in that, The wire drawing speed measurement pulley is located below the first guide pulley, and the wire is wound around the wire drawing speed measurement pulley and then around the first guide pulley.
4. A take-up mechanism based on tension maintenance and wire drawing speed measurement according to claim 3, characterized in that, A second guide pulley is arranged above the right of the first guide pulley, and the axis of the second guide pulley extends forward and backward; the wire is wound around the second guide pulley after being wound around the first guide pulley and then wound on the take-up reel.
5. A take-up mechanism based on tension maintenance and wire drawing speed measurement according to claim 4, characterized in that, The second guide pulley is located above the left of the take-up reel.
6. A take-up mechanism based on tension maintenance and wire drawing speed measurement according to claim 5, characterized in that, The wire is wound into the wire drawing speed measurement pulley from the top left side of the wire drawing speed measurement pulley and then wound out of the wire drawing speed measurement pulley from the top right side of the wire drawing speed measurement pulley.
7. A take-up mechanism based on tension maintenance and wire drawing speed measurement according to claim 6, characterized in that, The wire is wound into the first guide pulley from the bottom left side of the first guide pulley and then wound out of the first guide pulley from the bottom right side of the first guide pulley.
8. A take-up mechanism based on tension maintenance and wire drawing speed measurement according to claim 7, characterized in that, The wire is wound into the second guide pulley from the top left side of the second guide pulley and then wound out of the second guide pulley from the top right side of the second guide pulley.
9. A take-up mechanism based on tension maintenance and wire drawing speed measurement according to claim 8, characterized in that, The wire is wound into the take-up reel from the top left side of the take-up reel and then wound on the bottom of the take-up reel from the right side of the take-up reel.
10. A wire drawing machine, comprising a wire-releasing mechanism, a wire-drawing mechanism and a wire-receiving mechanism, characterized in that: The wire drawing mechanism is the wire drawing mechanism based on tension keeping and wire drawing speed measurement in any one of claims 1 to 9.