Constant-speed cam type steel wire moving mechanism
By using a uniform cam to control the movement of the push rod in the wire moving mechanism, the problem of uneven wire moving speed caused by the crank slider mechanism is solved, and the uniformity of the wire waveform and uniform wear of the deformer gear are achieved.
Patent Information
- Application Number
- CN202421789438.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-26
- Publication Date
- 2025-05-09
- Estimated Expiration
- 2034-07-26
AI Technical Summary
The existing wire moving mechanism uses a crank slider mechanism, which leads to uneven wire moving speed and uneven wear of the internal gear of the deformer, affecting product quality.
A uniform cam type wire movement mechanism is adopted to control the forward and backward movement of the push rod through a uniform cam to ensure the uniformity of the wire movement speed, thereby making the wear of the deformer weight gear in an ideal state.
The uniformity of the wire movement speed is achieved, the uneven wear of the internal gear of the deformer is reduced, and the waveform of the brush wire is maintained uniformly.
Smart Images
Figure CN222843050U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of steel wire processing equipment, in particular to a uniform-speed cam type steel wire moving mechanism. Background Art
[0002] The brush wire is wavy, which is formed by extruding a straight wire through the gears of a deformer. The wire moving mechanism is an important component in the wire deformation process, and its function is to make the wire move at a constant speed, so that the waveform of the brush wire remains uniform.
[0003] like Figure 1 As shown, the existing wire moving mechanism adopts a crank slider mechanism, which has a simple and reliable structure. However, due to the movement characteristics of the crank slider mechanism, the wire moving speed is not a constant speed, which causes uneven wear of the deformation gears in the deformer. After long-term use, severe wear will cause high and low waves, affecting product quality.
[0004] like Figure 2 As shown, the left figure is a schematic diagram of the wire movement speed curve and wear condition of the existing crank slider mechanism. When the wire movement speed becomes faster, the wear on the gear will decrease. When the wire movement speed becomes slower, the wire stays in this position for a longer time and the wear will be relatively serious. This trend becomes more serious with long-term use. As a result, the wire is severely worn when it moves to the sides and the middle, and the wire wave height becomes lower. However, when it moves to the two positions with high speed, the gear wear is lighter and the wire wave height becomes higher. If the wire movement speed is uniform, the wear condition will be as shown in the figure on the right. Figure 2 The right picture shows the ideal wear state. We hope that the wear of the wire is uniform. By adjusting the distance between the two gears and compensating for the wear, the waveform of the wire can still be kept uniform. To achieve this goal, the speed of the wire movement must be kept constant.
[0005] Therefore, a uniform cam type wire moving mechanism is badly needed. Utility Model Content
[0006] The utility model aims to provide a uniform-speed cam type wire moving mechanism, which controls the forward and backward movement of the push rod through the uniform-speed cam to ensure uniform wire movement speed, so that the wear of the deformer heavy gear is in an ideal state, thereby keeping the waveform of the brush wire uniform and consistent, so as to solve the problems raised in the above-mentioned background technology.
[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0008] A uniform-speed cam-type wire moving mechanism comprises a bracket, a guide wheel and a base are connected to the bracket, two groups of deformers are connected to the base, the two groups of deformers have different angles, and each group of deformers is connected to two gears; the wire moving mechanism comprises a driving device, a cam, a push rod, a slide and a roller; the bracket is connected to the base, the driving device is connected to the base, and the cam is connected to the power output end of the driving device; the slide is connected to the base, one end of the push rod is slidably matched with the slide, and the other end of the push rod is slidably matched with the top of the cam; the roller is connected to the push rod, the roller is in contact with the outer wall of the cam, and an elastic member is connected between the push rod and the slide; one end of the push rod is located on the side of one group of deformers, and a wire hole is provided at one end of the push rod close to the deformer.
[0009] A further improvement of the utility model is that a shaft hole is provided in the middle of the cam, a threaded hole is provided on the cylindrical surface of the step shaft, and the middle wheel body part moves at a uniform speed of 0° to 180° to rise and 180° to 360° to fall.
[0010] A further improvement of the utility model is that the driving device is a reduction motor, the shaft hole of the cam is inserted into the power output shaft of the reduction motor, and the set screw thread is matched with the threaded hole and abuts against the power output shaft of the reduction motor.
[0011] A further improvement of the utility model is that the front half of the push rod is a cylinder, the rear half is a flat plate, a through hole is provided at the front end of the cylinder, a wear-resistant ring is interference-fitted in the through hole, and the thread hole is located at the center of the wear-resistant ring.
[0012] A further improvement of the utility model is that a small waist-shaped hole and a large waist-shaped hole are provided at the flat plate end of the push rod, and the roller is a ball bearing, which is connected to the bottom of the flat plate end at the small waist-shaped hole through a hexagon socket screw A and a nut.
[0013] A further improvement of the utility model is that the shaft end on the cam is slidably matched with the large waist-shaped hole of the push rod, the end cover is connected to the cam shaft end through the hexagon socket screw B, and the flat end of the push rod is limited to the bottom of the end cover.
[0014] A further improved solution of the utility model is that the elastic member is a spring, and the spring is sleeved on the outer wall of the cylinder between the flat plate end of the push rod and the slide seat.
[0015] Beneficial effects of the utility model:
[0016] The uniform-speed cam type wire moving mechanism of the utility model controls the forward and backward movement of the push rod through the uniform-speed cam, thereby ensuring uniform moving speed of the wire, making the wear of the heavy gear of the deformer in an ideal state, and further making the waveform of the brush wire uniform and consistent. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1It is a structural schematic diagram of a steel wire moving mechanism in the prior art.
[0018] Figure 2 The left is a schematic diagram of the steel wire movement speed curve and wear condition of the existing crank slider mechanism; the right is a schematic diagram of the steel wire movement speed curve and wear condition under ideal conditions.
[0019] Figure 3 It is an axonometric diagram of the overall structure of the utility model.
[0020] Figure 4 It is a partial cross-sectional view of the utility model.
[0021] Figure 5 It is an axonometric drawing of the local structure of the utility model.
[0022] Figure 6 This is a cam displacement curve diagram of the utility model.
[0023] In the figure: 1- bracket, 101- base, 102- base, 2- guide wheel, 3- deformer, 301- gear, 4- cam, 5- push rod, 501- small waist-shaped hole, 502- large waist-shaped hole, 6- slide seat, 7- roller, 8- reduction motor, 9- set screw, 10- wear-resistant ring, 1001- thread hole, 11- hexagon socket screw A, 12- nut, 13- end cover, 14- hexagon socket screw B, 15- spring, 16- steel wire. DETAILED DESCRIPTION
[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0025] Example 1: Figures 3 to 5 As shown, a uniform speed cam type wire moving mechanism comprises a bracket 1, a guide wheel 2 and a base 101 are connected to the bracket 1, two groups of deformers 3 are connected to the base 101, the two groups of deformers 3 have different angles, and each group of deformers 3 is connected to two gears 301; the wire 16 moving mechanism comprises a driving device, a cam 4, a push rod 5, a slide 6 and a roller 7; the bracket 1 is connected to a base 102, the driving device is connected to the base 102, and the cam 4 is connected to the power output end of the driving device; the slide 6 is connected to the base 102, one end of the push rod 5 is slidably matched with the slide 6, and the other end of the push rod 5 is slidably matched with the top of the cam 4; the roller 7 is connected to the push rod 5, the roller 7 is in contact with the outer wall of the cam 4, and an elastic member is connected between the push rod 5 and the slide 6; one end of the push rod 5 is located on the side of one group of deformers 3, and the end of the push rod 5 close to the deformer 3 is provided with a wire hole 1001.
[0026] An axial hole is arranged in the middle of the cam 4, and a threaded hole is arranged on the cylindrical surface of the step shaft. The wheel body in the middle moves at a uniform speed of 0° to 180° to rise and 180° to 360° to fall.
[0027] The driving device is a reduction motor 8 , the shaft hole of the cam 4 is plugged into the power output shaft of the reduction motor 8 , and the set screw 9 is threadedly matched with the threaded hole and abuts against the power output shaft of the reduction motor 8 .
[0028] The front half of the push rod 5 is a cylinder, and the rear half is a flat plate. A through hole is provided at the front end of the cylinder, and a wear-resistant ring 10 is interference-fitted in the through hole. The thread hole 1001 is located at the center of the wear-resistant ring 10.
[0029] The flat end of the push rod 5 is provided with a small waist-shaped hole 501 and a large waist-shaped hole 502 . The roller 7 is a ball bearing. The roller 7 is connected to the bottom of the flat end at the small waist-shaped hole 501 through a hexagon socket screw A11 and a nut 12 .
[0030] The shaft end on the cam 4 is slidably matched with the large waist-shaped hole 502 of the push rod 5, and the end cover 13 is connected to the shaft end of the cam 4 through the hexagon socket screw B14, and the flat end of the push rod 5 is restricted to the bottom of the end cover 13.
[0031] The elastic member is a spring 15 , which is sleeved on the outer wall of the cylinder between the flat plate end of the push rod 5 and the slide seat 6 .
[0032] The design principle of the utility model is as follows:
[0033] Cam 4: The design of cam 4 is a shaft hole in the middle, with a threaded hole on the cylindrical surface of the stepped shaft, which is fixed with the motor shaft using a set screw 9. The middle wheel body adopts a design that moves at a constant speed of 0°~180° up and 180°~360° down. For details of the displacement curve of cam 4, see Figure 6 .
[0034] Push rod 5: The front half of the push rod 5 is a cylinder with a diameter of 12mm, and the back is a flat plate end with a thickness of 8mm. There is a through hole at the front end of the cylinder, and a threading wear ring 10 made of cemented carbide is installed. The thread hole 1001 in the middle of the wear ring 10 is 0.5mm. There is a small waist-shaped hole 501 at the flat plate end, which is used to install the roller 7 through the hexagon socket screw A11 and the nut 12. There is also a larger waist-shaped hole 502. The width of the large waist-shaped hole 502 matches the diameter of the shaft end on the cam 4. It is fixed with the end cover 13 and the hexagon socket screw B14. In this way, the push rod 5 can only move forward and backward under the restriction of the upper end surface of the cam 4 and the end cover 13.
[0035] Roller 7: ball bearing is adopted.
[0036] Reducer motor 8: Use 6WJ AC motor, the motor's reducer transmission ratio is 280 times, the output shaft speed is 5 revolutions per minute, and it is assembled with the motor and fixed to the base 102 with screws.
[0037] Wear-resistant ring 10: The wire hole 10010.5mm at the center is made of cemented carbide material, which can effectively reduce the wear of the steel wire 16.
[0038] End cover 13: used to limit the rotation and up and down freedom of the push rod 5.
[0039] Spring 15: used to push the push rod 5 to move back.
[0040] The specific working principle of the utility model is as follows:
[0041] The bracket 1 is used to fix the deformation device and the steel wire 16 moving mechanism, and can be fixed to the appropriate position of the equipment through the bracket 1. The reduction motor 8 drives the uniform cam 4 to rotate, and the cam 4 pushes the roller 7 made of ball bearings. Since the roller 7 is fixed on the push rod 5, the cam 4 pushes the roller 7, and the roller 7 drives the push rod 5 to move. Since the front end of the push rod 5 cooperates with the linear bearing, it overcomes the resistance of the spring 15 and moves forward. The steel wire 16 passes through the wear-resistant ring 10 and enters the two sets of gears 301 of the deformer 3, bypasses the guide wheel 2 and enters the wire take-up machine. When the cam 4 rotates 180°, it enters the descending stroke, and the push rod 5 moves backward under the tension of the spring 15. The cam 4 rotates to 360° and reaches the lowest point. The steel wire 16 moves left and right along the meshing surface of the two gears 301 of the deformer 3 under the action of the push rod 5. The moving speed is uniform, the wear is uniform, and the wave line waveform of the brush steel wire 16 produced is uniform.
[0042] This deformation device consisting of two groups of deformers 3 is a prior art, and its structure and working principle will not be elaborated in detail here.
[0043] The above implementation is only to illustrate the technical concept and features of the utility model, and its purpose is to enable people familiar with this technology to understand the content of the utility model and implement it accordingly, and it cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.
Claims
1. A uniform cam type wire moving mechanism, comprising a bracket (1), the bracket (1) being connected to a guide wheel (2) and a base (101), the base (101) being connected to two groups of deformers (3), the two groups of deformers (3) having different angles, and each group of deformers (3) being connected to two gears (301); characterized in that: The steel wire (16) moving mechanism comprises a driving device, a cam (4), a push rod (5), a slide seat (6) and a roller (7); the bracket (1) is connected to a base (102), the driving device is connected to the base (102), and the cam (4) is connected to a power output end of the driving device; the slide seat (6) is connected to the base (102), one end of the push rod (5) is slidably matched with the slide seat (6), and the other end of the push rod (5) is slidably matched with the top end of the cam (4); the roller (7) is connected to the push rod (5), the roller (7) is in contact with the outer wall of the cam (4), and an elastic member is connected between the push rod (5) and the slide seat (6); one end of the push rod (5) is located on the side of one group of deformers (3), and one end of the push rod (5) close to the deformer (3) is provided with a wire hole (1001).
2. A uniform speed cam type wire moving mechanism as claimed in claim 1, characterized in that: The cam (4) has an axial hole in the middle and a threaded hole on the cylindrical surface of the stepped shaft. The wheel body in the middle moves at a constant speed of 0° to 180° to rise and 180° to 360° to fall.
3. A uniform speed cam type wire moving mechanism as claimed in claim 2, characterized in that: The driving device is a reduction motor (8), the shaft hole of the cam (4) is plugged into the power output shaft of the reduction motor (8), and the set screw (9) is threadedly matched with the threaded hole and abuts against the power output shaft of the reduction motor (8).
4. A uniform speed cam type wire moving mechanism as claimed in claim 1, characterized in that: The front half of the push rod (5) is a cylinder, and the rear half is a flat plate. A through hole is provided at the front end of the cylinder, and a wear-resistant ring (10) is interference-fitted in the through hole. The thread hole (1001) is located at the center of the wear-resistant ring (10).
5. A uniform speed cam type wire moving mechanism as claimed in claim 4, characterized in that: The flat plate end of the push rod (5) is provided with a small waist-shaped hole (501) and a large waist-shaped hole (502); the roller (7) is a ball bearing; the roller (7) is connected to the bottom of the flat plate end at the small waist-shaped hole (501) via a hexagon socket screw A (11) and a nut (12).
6. A uniform speed cam type wire moving mechanism as claimed in claim 5, characterized in that: The shaft end on the cam (4) is slidably matched with the large waist-shaped hole (502) of the push rod (5); the end cover (13) is connected to the shaft end of the cam (4) via a hexagon socket screw B (14); and the flat end of the push rod (5) is restricted to the bottom of the end cover (13).
7. A uniform speed cam type wire moving mechanism as claimed in claim 4, characterized in that: The elastic member is a spring (15), and the spring (15) is sleeved on the outer wall of the cylinder between the flat plate end of the push rod (5) and the slide seat (6).