A speed measuring device for steel cord of a twisting machine

Abstract

This utility model relates to the field of speed measuring device technology, and discloses a steel cord speed measuring device for a twisting machine, including a speed measuring instrument, and further including: an adjustment mechanism, a first control mechanism, a second control mechanism, and a steel cord. The side of the speed measuring instrument is fixedly connected to the side of the adjustment mechanism, the side of the first control mechanism is movably connected to the inner wall of the side of the adjustment mechanism, the side of the second control mechanism is movably connected to the inner wall of the side of the adjustment mechanism, and the side of the steel cord is movably connected to the side of the adjustment mechanism. The structure of the second control mechanism is the same as that of the first control mechanism. The adjustment mechanism includes a side plate, a base plate, a servo motor, a threaded shaft, a frame, a pressure spring, a movable block, a mounting shaft, a guide wheel, and a test wheel. The first control mechanism includes a control switch. This utility model provides a steel cord speed measuring device for a twisting machine that flexibly adjusts the pressure value on the steel cord and keeps it constant within a certain range to ensure accurate detection.

Description

Technical Field

[0001] This utility model relates to the field of speed measuring device technology, and more specifically to a steel cord speed measuring device for a twisting machine. Background Technology

[0002] The process of twisting steel wires into strands in a regular spiral pattern around the center line of the strand core according to technical requirements is one of the important steps in steel wire rope production. The twisting machine consists of main components such as a transmission device, twisting machine body, wire pressing device, traction device, safety and stopping device, and take-up and laying device, as well as a series of auxiliary machines such as cranes, welding machines, and cutting machines. In order to ensure the quality of the finished rope strands during use, it is necessary to accurately control the conveying speed of the steel cord to ensure that the steel cord is taut. Therefore, it is necessary to use a speed measuring device to monitor the speed of the steel cord in real time.

[0003] Existing technology has shortcomings: Current steel cord speed measuring devices use rollers that are in close contact with the steel cord, with the steel cord driving the rollers to rotate, and the roller speed is detected to achieve the speed measurement of the steel cord. However, during use, it is difficult to accurately control the pressure between the rollers and the steel cord. Insufficient pressure can lead to the rollers not synchronizing with the speed of the steel cord, affecting the test results, or excessive pressure can damage the steel cord. At the same time, different specifications of steel cord can withstand different pressure values, and the device cannot be adjusted to achieve the testing of steel cords of different specifications. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a steel cord speed measuring device for a twisting machine to solve the problems existing in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a steel cord speed measuring device for a twisting machine, comprising a speed measuring instrument, and further comprising: an adjusting mechanism, a first control mechanism, a second control mechanism, and a steel cord. The side of the speed measuring instrument is fixedly connected to the side of the adjusting mechanism. The side of the first control mechanism is movably connected to the inner wall of the side of the adjusting mechanism. The side of the second control mechanism is movably connected to the inner wall of the side of the adjusting mechanism. The side of the steel cord is movably connected to the side of the adjusting mechanism. The structure of the second control mechanism is the same as that of the first control mechanism. The adjusting mechanism includes a side plate, a through groove is formed on the side of the side plate, a bottom plate is movably connected to the side of the through groove, and a servo motor is fixedly connected to the side of the side plate. The servo motor outputs... A threaded shaft is fixedly connected to the output shaft. The side of the threaded shaft is threadedly connected to the inner wall of the side of the base plate. A frame is fixedly connected to the top of the base plate. A pressure spring is fixedly connected to the inner wall of the bottom end of the frame. A movable block is fixedly connected to the top of the pressure spring. An installation shaft is movably sleeved on the side of the movable block. A test wheel is fixedly sleeved on the side of the installation shaft. A groove is formed on the inner wall of the side of the frame. The first control mechanism includes a control switch. The side of the control switch is movably connected to the side of the groove. The side of the second control mechanism is movably connected to the side of the groove. Two guide wheels are movably sleeved on the side of the side plate through pins. The steel cord passes through the bottom end of the guide wheel and the top end of the test wheel. The side of the speedometer is fixedly connected to the side of the installation shaft.

[0006] Furthermore, the guide wheels on both sides are symmetrically distributed along the center of the test wheel, and the structure of the guide wheels is the same as that of the test wheel. The test wheel has an inclined surface on its side.

[0007] Furthermore, a threaded rod is movably sleeved at the bottom end of the slide, the side of the threaded rod is threadedly connected to the side of the control switch, and a knob is fixedly connected to the top end of the threaded rod.

[0008] Furthermore, the control switch includes a mounting block, a reset spring is fixedly connected to the inner side wall of the mounting block, a mounting bracket is fixedly connected to the side of the reset spring, a buffer spring is fixedly connected to the inner side wall of the mounting block, and a pressure switch is fixedly connected to the side of the buffer spring.

[0009] Furthermore, the movable block has rounded corners on its side, and the mounting bracket has rollers movably connected to its side via pins.

[0010] Furthermore, the surface of the test wheel is frosted, and the side of the side plate has markings corresponding to the position of the control switch.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] 1. This utility model uses a servo motor to drive a threaded shaft to rotate, which in turn drives a base plate to move upward along a through groove. This causes the test wheel and guide wheel to engage and tension the steel cord. At this time, the pressure spring contracts, and the movable block moves downward along the inner wall of the frame side, until it reaches below the control switch. The movable block then contacts the second control mechanism, which in turn controls the servo motor to rotate the threaded shaft in the opposite direction, causing the frame to move downward until the movable block separates from the second control mechanism. During equipment operation, if the pressure of the test wheel on the steel cord is too low, the pressure spring pushes the movable block upward, causing it to contact the control switch. The control switch then controls the servo motor to rotate forward, causing the frame to move upward until the movable block separates from the control switch. This controls the deformation of the pressure spring to remain within a constant range, thus ensuring that the pressure of the test wheel on the steel cord is within a constant range, which helps improve the accuracy of the test results.

[0013] 2. This utility model uses a knob to rotate a threaded rod, which in turn drives a control switch to slide along a groove. The control switch is at the position of minimum deformation of the pressure spring, i.e., the minimum pressure value of the test wheel to the steel cord. The second control mechanism is at the position of maximum deformation of the pressure spring, i.e., the maximum pressure value of the test wheel to the steel cord. This improves the flexibility of the equipment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the test wheel structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the positional structure of the test wheel and guide wheel of this utility model;

[0017] Figure 4 This is a schematic diagram of the adjustment mechanism structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the guide wheel structure of this utility model;

[0019] Figure 6 This is a schematic diagram of the cross-sectional structure of the frame of this utility model;

[0020] Figure 7 For the present utility model Figure 6 Schematic diagram of the structure at point A.

[0021] The attached figures are labeled as follows: 1. Speedometer; 2. Adjustment mechanism; 201. Side plate; 202. Guide wheel; 203. Frame; 204. Test wheel; 2041. Inclined surface; 205. Mounting shaft; 206. Servo motor; 207. Threaded shaft; 208. Base plate; 209. Movable block; 210. Through groove; 211. Pressure spring; 212. Slide groove; 213. Rounded corner; 3. First control mechanism; 301. Threaded rod; 302. Control switch; 3021. Mounting block; 3022. Return spring; 3023. Pressure switch; 3024. Mounting bracket; 3025. Buffer spring; 3026. Roller; 303. Knob; 4. Second control mechanism; 5. Steel cord. Detailed Implementation

[0022] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The steel cord speed measuring device for a twisting machine involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] Reference Figures 1 to 7This utility model provides a steel cord speed measuring device for a twisting machine, including a speed measuring instrument 1, and further including: an adjusting mechanism 2, a first control mechanism 3, a second control mechanism 4, and a steel cord 5. The side of the speed measuring instrument 1 is fixedly connected to the side of the adjusting mechanism 2. The side of the first control mechanism 3 is movably connected to the inner wall of the side of the adjusting mechanism 2. The side of the second control mechanism 4 is movably connected to the inner wall of the side of the adjusting mechanism 2. The side of the steel cord 5 is movably connected to the side of the adjusting mechanism 2. The structure of the second control mechanism 4 is the same as that of the first control mechanism 3. The adjusting mechanism 2 includes a side plate 201, a through groove 210 is opened on the side of the side plate 201, a bottom plate 208 is movably connected to the side of the through groove 210, and a servo motor is fixedly connected to the side of the side plate 201. 206. The output shaft of the servo motor 206 is fixedly connected to a threaded shaft 207. The side of the threaded shaft 207 is threadedly connected to the inner side wall of the base plate 208. A frame 203 is fixedly connected to the top of the base plate 208. A pressure spring 211 is fixedly connected to the inner bottom wall of the frame 203. A movable block 209 is fixedly connected to the top of the pressure spring 211. A mounting shaft 205 is movably sleeved on the side of the movable block 209. A test wheel 204 is fixedly sleeved on the side of the mounting shaft 205. A groove 212 is provided on the inner side wall of the frame 203. The first control mechanism 3 includes a control switch 302. The side of the control switch 302 is movably connected to the side of the groove 212. The side of the second control mechanism 4 is movably connected to the side of the groove 212. The side plate 20... Two guide wheels 202 are movably connected to the side of the speed meter 1 via pins. The steel cord 5 passes through the bottom end of the guide wheel 202 and the top end of the test wheel 204. The side of the speed meter 1 is fixedly connected to the side of the mounting shaft 205. According to the usage requirements, it is moved to a suitable position along the slide groove 212 and the movement control switch 302. Similarly, the second control mechanism 4 is adjusted so that the second control mechanism 4 is below the first control mechanism 3. The steel cord 5 passes through the bottom end of the guide wheel 202 and the top end of the test wheel 204. The servo motor 206 is started to drive the threaded shaft 207 to rotate. Through the thread, the base plate 208 moves upward along the through groove 210, so that the test wheel 204 cooperates with the guide wheel 202 to tension the steel cord 5. At this time, the pressure spring 211 contracts, and the movable block 209... The frame 203 moves downwards along its inner side wall, causing the movable block 209 to move below the control switch 302 until it contacts the second control mechanism 4. The second control mechanism 4 then controls the servo motor 206 to rotate the threaded shaft 207 in the reverse direction, causing the frame 203 to move downwards until the movable block 209 separates from the second control mechanism 4. During equipment operation, if the pressure of the test wheel 204 on the steel cord 5 is too low, the pressure spring 211 pushes the movable block 209 upwards, causing it to contact the control switch 302. The control switch 302 then controls the servo motor 206 to rotate forward, causing the frame 203 to move upwards until the movable block 209 separates from the control switch 302. This controls the deformation of the pressure spring 211 to remain within a constant range.This ensures that the pressure of the test wheel 204 on the steel cord 5 remains within a constant range. During the conveying process, the steel cord 5 drives the test wheel 204 to rotate through friction, which in turn drives the mounting shaft 205 to rotate. The speedometer 1 detects the rotational speed of the mounting shaft 205, thereby determining the conveying speed of the steel cord 5.

[0024] Among them, the two guide wheels 202 are symmetrically distributed along the center of the test wheel 204. The structure of the guide wheel 202 is the same as that of the test wheel 204, ensuring that the test wheel 204 is subjected to uniform force. The side of the test wheel 204 is provided with a sloping surface 2041 to prevent the steel cord 5 from falling off the test wheel 204.

[0025] The bottom end of the slide groove 212 is movably fitted with a threaded rod 301. The side of the threaded rod 301 is threadedly connected to the side of the control switch 302. The top end of the threaded rod 301 is fixedly connected with a knob 303. Rotating the knob 303 causes the threaded rod 301 to rotate, which in turn causes the control switch 302 to slide along the slide groove 212. The control switch 302 is the position of minimum deformation of the pressure spring 211, that is, the minimum pressure value of the test wheel 204 on the steel cord 5. The second control mechanism 4 is the position of maximum deformation of the pressure spring 211, that is, the maximum pressure value of the test wheel 204 on the steel cord 5.

[0026] The control switch 302 includes a mounting block 3021. A return spring 3022 is fixedly connected to the inner side wall of the mounting block 3021. A mounting bracket 3024 is fixedly connected to the side of the return spring 3022. A buffer spring 3025 is fixedly connected to the inner side wall of the mounting block 3021. A pressure switch 3023 is fixedly connected to the side of the buffer spring 3025. When the movable block 209 moves to the position of the control switch 302, the movable block 209 contacts the roller 3026, causing the mounting bracket 3024 to retract into the mounting block 3021 and contact the pressure switch 3023. The pressure switch 3023 controls the servo motor 206 to rotate forward. When the movable block 209 separates from the roller 3026, the return spring 3022 pushes the mounting bracket 3024 to move outward and separate from the pressure switch 3023. The pressure switch 3023 controls the servo motor 206 to stop.

[0027] The movable block 209 has a rounded corner 213 on its side, and the mounting bracket 3024 has a roller 3026 movably connected to its side by a pin. When the movable block 209 moves to the position of the mounting bracket 3024, the roller 3026 rolls along the movable block 209 to avoid jamming.

[0028] The surface of the test wheel 204 is frosted, and the side of the side plate 201 is marked with scales corresponding to the position of the control switch 302.

[0029] The working principle of this utility model is as follows: According to usage requirements, rotating the knob 303 drives the threaded rod 301 to rotate, which in turn drives the control switch 302 to slide along the slide groove 212, moving the control switch 302 to a suitable position. Similarly, the second control mechanism 4 is adjusted so that the control switch 302 is at the position of minimum deformation of the pressure spring 211, i.e., the minimum pressure value of the test wheel 204 on the steel cord 5. Similarly, the second control mechanism 4 is adjusted so that the second control mechanism 4 is at the position of maximum deformation of the pressure spring 211, i.e., the maximum pressure value of the test wheel 204 on the steel cord 5; the steel cord... 5. Passing through the bottom end of guide wheel 202 and the top end of test wheel 204, servo motor 206 is started to drive threaded shaft 207 to rotate. Through the thread, base plate 208 moves upward along through groove 210, so that test wheel 204 cooperates with guide wheel 202 to tension steel cord 5. At this time, pressure spring 211 contracts, and movable block 209 moves downward along the inner wall of side of frame 203, so that movable block 209 moves below control switch 302 until movable block 209 contacts second control mechanism 4, so that second control mechanism 4 controls servo motor 206 to control threaded shaft 207 to reverse. Rotation causes frame 203 to move downwards until movable block 209 separates from the second control mechanism 4. During equipment operation, if the pressure of test wheel 204 on steel cord 5 is too low, pressure spring 211 pushes movable block 209 upwards, causing movable block 209 to contact control switch 302. Movable block 209 then contacts roller 3026, causing mounting bracket 3024 to retract into mounting block 3021 and contact pressure switch 3023. Pressure switch 3023 controls servo motor 206 to rotate forward, causing frame 203 to move upwards until movable block 209 separates from control switch 302. 2. When the movable block 209 separates from the roller 3026, the return spring 3022 pushes the mounting bracket 3024 to move outward and separates it from the pressure switch 3023. The pressure switch 3023 controls the servo motor 206 to stop, thereby controlling the deformation of the pressure spring 211 within a constant range, so that the pressure of the test wheel 204 on the steel cord 5 is within a constant range. During the conveying process, the steel cord 5 drives the test wheel 204 to rotate through friction, thereby driving the mounting shaft 205 to rotate. The speed measuring instrument 1 detects the rotation speed of the mounting shaft 205, thereby determining the conveying speed of the steel cord 5.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A steel cord speed measuring device for a stranding machine, comprising a tachometer (1), characterized in that, Also includes: The device comprises an adjustment mechanism (2), a first control mechanism (3), a second control mechanism (4), and a steel cord (5). The side of the speedometer (1) is fixedly connected to the side of the adjustment mechanism (2). The side of the first control mechanism (3) is movably connected to the inner wall of the side of the adjustment mechanism (2). The side of the second control mechanism (4) is movably connected to the inner wall of the side of the adjustment mechanism (2). The side of the steel cord (5) is movably connected to the side of the adjustment mechanism (2). The structure of the second control mechanism (4) is similar to that of the adjustment mechanism (2). The first control mechanism (3) has the same structure. The adjustment mechanism (2) includes a side plate (201). A through groove (210) is provided on the side of the side plate (201). A base plate (208) is movably connected to the side of the through groove (210). A servo motor (206) is fixedly connected to the side of the side plate (201). A threaded shaft (207) is fixedly connected to the output shaft of the servo motor (206). The side of the threaded shaft (207) is threadedly connected to the inner wall of the side of the base plate (208). A frame (203) is fixedly connected to the top of the base plate (208). A pressure spring (211) is fixedly connected to the inner wall of the bottom end of the frame (203). A movable block (209) is fixedly connected to the top of the pressure spring (211). A mounting shaft (205) is movably sleeved on the side of the movable block (209). A test wheel (204) is fixedly sleeved on the side of the mounting shaft (205). A sliding groove (212) is provided on the inner wall of the side of the frame (203). The first control machine... The structure (3) includes a control switch (302), the side of which is movably connected to the side of the slide (212), the side of the second control mechanism (4) is movably connected to the side of the slide (212), the side of the side plate (201) is movably sleeved with two guide wheels (202) by pins, the steel cord (5) passes through the bottom end of the guide wheel (202) and the top end of the test wheel (204), and the side of the speed measuring instrument (1) is fixedly connected to the side of the mounting shaft (205).

2. A steel cord speed measuring device for a stranding machine according to claim 1, characterized in that: The guide wheels (202) on both sides are symmetrically distributed along the center of the test wheel (204). The structure of the guide wheels (202) is the same as that of the test wheel (204). The side of the test wheel (204) is provided with an inclined surface (2041).

3. A steel cord speed measuring device for a stranding machine according to claim 1, characterized in that: The bottom end of the slide (212) is movably sleeved with a threaded rod (301), the side of the threaded rod (301) is threadedly connected to the side of the control switch (302), and the top end of the threaded rod (301) is fixedly connected with a knob (303).

4. A steel cord speed measuring device for a stranding machine according to claim 1, characterized in that: The control switch (302) includes a mounting block (3021), a return spring (3022) is fixedly connected to the inner side wall of the mounting block (3021), a mounting bracket (3024) is fixedly connected to the side of the return spring (3022), a buffer spring (3025) is fixedly connected to the inner side wall of the mounting block (3021), and a pressure switch (3023) is fixedly connected to the side of the buffer spring (3025).

5. A steel cord speed measuring device for a stranding machine according to claim 4, characterized in that: The side of the movable block (209) is provided with a circular arc corner (213), and the side of the mounting frame (3024) is movably connected with a roller (3026) through a pin.

6. A steel cord speed measuring device for a stranding machine according to claim 4, characterized in that: The surface of the test wheel (204) is sanded, and the side of the side plate (201) is provided with a scale corresponding to the position of the control switch (302).

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