Reverse wheel device for adjusting twisting tightness of steel cord
By using a movable reverse wheel device during the steel cord twisting process, the angle of the reverse wheel is adjusted to achieve twisting or retwine, the problems of loosening, drumming and core twisting of multi-layer structures are solved, improving product quality and reducing production costs.
Patent Information
- Application Number
- CN202421716618.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-19
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-07-19
AI Technical Summary
During the twisting process of steel cords, loose twisting, drumming, and core turning are prone to occur in multi-layer structures, resulting in an increase in unqualified products and an increase in production costs. This is mainly due to the inadequate twisting of the inner strands or over-twisting, which leads to inadequate twisting.
A reverse wheel device is designed. By providing a movable reverse wheel on the main shaft, the reverse wheel seat can rotate around the fixed seat, change the contact position between the surface of the reverse wheel and the strand, and realize the twisting effect, and adjust the twisting effect by fine-tuning the angle of the reverse wheel.
Effectively adjust the twisting effect, reduce unqualified products, improve the quality stability of steel cord products, and reduce production costs.
Smart Images
Figure CN223074497U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of steel cord production, and particularly relates to a reverse wheel device for adjusting the tightness of steel cord twisting. Background Art
[0002] During the twisting process of steel cord, a stranding machine is used for twisting. The rotation of the machine body drives the flywheel to rotate. The steel wire and core wire on the pay-off spool are collected to the over-twister through a series of guide wheels and thread passing shafts. After two processes of main twisting and over-twisting, the finished product is finally collected by the take-up spool. In this process, each motor needs to run synchronously to ensure the stable quality of the twisted steel wire rope.
[0003] Currently, when producing multi-layer structures such as 2+7, 3+8, 3+9, 3+6, etc., problems such as loose twisting, bulging, and core turning of the cord are likely to occur, greatly increasing the production of unqualified products and raising the production cost. The inventor found through inspection that it is because the inner layer of strands undergoes untwisting or over-twisting in the equipment, resulting in insufficient twisting. Summary of the Utility Model
[0004] In view of the technical problems existing in the twisting of steel cord in the prior art, a first aspect of the utility model provides a reverse wheel device for adjusting the tightness of steel cord twisting, including:
[0005] A machine base;
[0006] A main shaft capable of being driven relative to the machine base, and the main shaft is provided with a wire passing groove and a mounting groove;
[0007] A reverse wheel component connected to the mounting groove of the main shaft;
[0008] A flywheel connected to one end of the main shaft away from the machine base;
[0009] Wherein, the wire passing groove includes a first wire passing groove and a second wire passing groove, the first wire passing groove and the second wire passing groove are respectively located on both sides of the reverse wheel component, a wire passing wheel is further provided in the mounting groove, the reverse wheel component includes a reverse wheel, the steel cord is introduced from the first wire passing groove, bypasses the wire passing wheel and the reverse wheel, and exits from the second wire passing groove, and the reverse wheel can rotate around the wire passing direction of the steel cord to change the position of the outlet end of the steel cord relative to the reverse wheel.
[0010] Preferably, the reverse wheel component further includes a fixed seat and a reverse wheel seat, the fixed seat is fixedly connected to the main shaft, the reverse wheel seat is rotatably connected to the fixed seat, and the reverse wheel is connected to the fixed seat.
[0011] Preferably, a connecting column is provided at one end of the reverse wheel seat away from the reverse wheel, the fixed seat is provided with a shaft hole, and the connecting column is connected into the shaft hole so that the reverse wheel seat can rotate relative to the fixed seat around the axis of the connecting column.
[0012] Preferably, a threaded section is provided at the end of the connecting column, and a nut is connected to the threaded section of the connecting column. The nut is used to press the fixed seat so that the reverse wheel seat and the fixed seat are fixed.
[0013] Preferably, the rotation axis of the reverse wheel seat is in the same plane as the axes of the first wire groove and the second wire groove.
[0014] Preferably, the included angle between the rotation axis of the reverse wheel seat and the axis of the second wire groove is less than 30°.
[0015] Preferably, the outer surface of the reverse wheel is for the steel cord to bypass, and the cross section of the outer surface of the reverse wheel is U-shaped.
[0016] Preferably, the hardness of the reverse wheel is at least HRC65.
[0017] Compared with the prior art, the advantages of the present utility model are as follows:
[0018] In the present utility model, a movable reverse wheel is provided on the main shaft, the strand wire bypasses the surface of the reverse wheel, the reverse wheel is installed on the reverse wheel seat, and the reverse wheel seat can rotate around the fixed seat. In this way, different positions on the surface of the reverse wheel can be changed to contact the strand wire. When different positions on the surface of the reverse wheel contact the strand wire, twisting and untwisting effects are formed on the strand wire. Therefore, by finely adjusting the angle of the reverse wheel, the adjustment of the twisting effect of the strand wire can be realized, which is beneficial to forming steel cord products that meet the requirements. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component shown in each figure may be denoted by the same reference numeral. For clarity, not every component is labeled in each figure. Now, embodiments of various aspects of the present utility model will be described by way of example and with reference to the drawings.
[0020] Figure 1 is a schematic structural view of a reverse wheel device for adjusting the twisting tightness of steel cord shown in the present utility model.
[0021] Figure 2 is a schematic structural view of a reverse wheel component shown in the present utility model.
[0022] Figure 3 is a schematic structural view of a reverse wheel seat shown in the present utility model.
[0023] Figure 4 This is a schematic structural diagram of the reverse wheel shown in the present utility model. Specific Embodiments
[0024] In order to better understand the technical content of the present utility model, specific embodiments are hereby given and described in conjunction with the accompanying drawings as follows.
[0025] During the twisting process of multi-layer structural steel cord, the twist pitches of each layer are different. When the twist pitch of the inner layer fails to meet the design requirements, problems such as loose wire formation, bulging, and core turning are likely to occur. In the actual twisting process, factors such as wire feeding tension and wire feeding speed may all affect the twisting effect. Therefore, it is necessary to adjust the twisting according to the twisting effect.
[0026] As Figure 1 - Figure 2 shown, a reverse wheel device for adjusting the tightness of steel cord twisting is proposed in the first aspect of the present utility model, which includes a machine base 10, a main shaft 20, a reverse wheel component 30, and a flywheel 40. The main shaft 20 is installed inside the machine base 10 and can be driven relative to the machine base 10. The main shaft 20 is provided with a wire passing groove and an installation groove. The reverse wheel component 30 is connected to the installation groove of the main shaft 20, and the flywheel 40 is connected to one end of the main shaft 20 away from the machine base 10.
[0027] By rotating the main shaft 20 and the flywheel 40, the inner layer, outer layer, or outer winding wire can be twisted. An over-twister (not shown in the figure) is provided between the two main shafts 20 to perform stress relief treatment on the steel cord after parallel twisting and stranding to eliminate residual torsion and radial internal stress.
[0028] Among them, the wire passing groove includes a first wire passing groove 201 and a second wire passing groove 202. The first wire passing groove 201 and the second wire passing groove 202 are respectively located on both sides of the reverse wheel component 30. A wire passing wheel 22 is also provided in the installation groove. The reverse wheel component 30 includes a reverse wheel 33.
[0029] As Figure 1 shown, the steel cord is introduced from the first wire passing groove 201, bypasses the wire passing wheel 22 and the reverse wheel 33, and is led out from the second wire passing groove 202.
[0030] Among them, the reverse wheel 33 can rotate around the wire passing direction of the steel cord, changing the position of the wire outlet end of the steel cord relative to the reverse wheel 33.
[0031] In this way, due to the wire passing path of the reverse wheel 33 for the inner layer strands, when the reverse wheel 33 provides support on different sides of the inner layer strands, with the rotation of the reverse wheel 33, the inner layer strands can be twisted or untwisted.
[0032] As Figure 4As shown, the outer surface 331 of the reverse wheel 33 is used for winding the steel cord, and the cross section of the outer surface 331 of the reverse wheel 33 is U-shaped. In this way, the strands are wound around the U-shaped surface of the reverse wheel 33. When the inner strands are twisted in the S direction, if the reverse wheel 33 is deflected to the right, the left wheel surface contacts the strands, and as the strands are transported forward, the strands are twisted and tightened. If the reverse wheel 33 is deflected to the left, the right wheel surface contacts the strands, and as the strands are transported forward, the strands are untwisted and loosened. Therefore, by adjusting the left and right deflection of the reverse wheel 33, the twisting of the strands can be fine-tuned.
[0033] Preferably, in order to improve the wear resistance of the reverse wheel 33, the hardness of the reverse wheel 33 is at least HRC65.
[0034] like Figure 2 , Figure 3 As shown, the reverse wheel component 30 also includes a fixed seat 32 and a reverse wheel seat 31 . The fixed seat 32 is fixedly connected to the main shaft 20 . The reverse wheel seat 31 is rotatably connected to the fixed seat 32 . The reverse wheel 33 is connected to the fixed seat 32 .
[0035] Among them, a connecting column 311 is provided at one end of the reverse wheel seat 31 away from the reverse wheel 33, and the fixed seat 32 is provided with an axial hole. The connecting column 311 is connected to the axial hole, so that the reverse wheel seat 31 can rotate relative to the fixed seat 32 around the axis of the connecting column 311.
[0036] In this way, when the reverse wheel seat 31 is rotated, the reverse wheel seat 31 rotates around the axis of the connecting column 311, so that the reverse wheel 33 deflects to the left or to the right along the line trajectory of the original strand.
[0037] Optionally, a threaded section is provided at the end of the connecting column 311 , and a nut 34 is connected to the threaded section of the connecting column 311 . The nut 34 is used to press the fixing seat 32 to fix the reverse wheel seat 31 and the fixing seat 32 .
[0038] Thus, when adjusting, firstly, the nut 34 is loosened with a tool, and then the reverse wheel seat 31 is rotated slightly to change the angle of the reverse wheel seat 31. When the reverse wheel seat 31 is rotated to the left, as shown in FIG. Figure 2 As shown, the reverse wheel seat 31 is turned outward from the paper surface. When the reverse wheel seat 31 rotates to the right, as shown in FIG. Figure 2 As shown, the reverse wheel seat 31 is turned inwardly toward the paper.
[0039] In a preferred embodiment, the rotation axis of the reverse wheel seat 31 is located in the same plane as the axes of the first wire groove 201 and the second wire groove 202. In this way, when the angle of the reverse wheel seat 31 is adjusted, the position of the wire inlet end remains in the middle of the reverse wheel 33, while the position of the wire outlet end is deflected to the left or right to prevent the wire from winding out of the reverse wheel 33.
[0040] Furthermore, the included angle between the rotation axis of the reverse wheel seat 31 and the axis of the second wire groove 202 is less than 30°. In this way, when the user performs an adjustment operation to rotate the reverse wheel seat 31 in a direction perpendicular to the rotation axis of the reverse wheel seat 31, a larger operating space can be reserved.
[0041] Combined with the above embodiments, the utility model has a movable reverse wheel provided on the main shaft, the strand wire bypasses the surface of the reverse wheel, the reverse wheel is installed on the reverse wheel seat, and the reverse wheel seat can rotate around the fixed seat. In this way, different positions on the surface of the reverse wheel can be brought into contact with the strand wire. When different positions on the surface of the reverse wheel come into contact with the strand wire, twisting and untwisting effects are formed on the strand wire. Therefore, by finely adjusting the angle of the reverse wheel, the twisting effect of the strand wire can be adjusted, which is beneficial to forming steel cord products that meet the requirements.
[0042] Although the present utility model has been disclosed above with preferred embodiments, it is not intended to limit the present utility model. Those with ordinary knowledge in the technical field to which the present utility model pertains can make various changes and modifications without departing from the spirit and scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to what is defined by the claims.
Claims
1. A reverse wheel device for adjusting the tightness of steel cord twisting, characterized in that, Comprising: A machine base (10); A main shaft (20) capable of being driven relative to the machine base (10), and a wire passing groove and a mounting groove are provided on the main shaft (20); A reverse wheel component (30) connected to the mounting groove of the main shaft (20); A flywheel (40) connected to one end of the main shaft (20) away from the machine base (10); Wherein, the wire passing groove includes a first wire passing groove (201) and a second wire passing groove (202), the first wire passing groove (201) and the second wire passing groove (202) are respectively located on both sides of the reverse wheel component (30), a wire passing wheel (22) is further provided in the mounting groove, the reverse wheel component (30) includes a reverse wheel (33), a steel cord is introduced from the first wire passing groove (201), bypasses the wire passing wheel (22) and the reverse wheel (33), and is led out from the second wire passing groove (202), and the reverse wheel (33) can rotate around the wire passing direction of the steel cord to change the position of the wire outlet end of the steel cord relative to the reverse wheel (33).
2. The reverse wheel device for adjusting the twisting tightness of steel cord according to claim 1, characterized in that, The reverse wheel component (30) further includes a fixed seat (32) and a reverse wheel seat (31), the fixed seat (32) is fixedly connected to the main shaft (20), the reverse wheel seat (31) is rotatably connected to the fixed seat (32), and the reverse wheel (33) is connected to the fixed seat (32).
3. The reverse wheel device for adjusting the tightness of steel cord twisting according to claim 2, characterized in that, A connecting column (311) is provided at one end of the reverse wheel seat (31) away from the reverse wheel (33), the fixed seat (32) is provided with an axial hole, and the connecting column (311) is connected into the axial hole, so that the reverse wheel seat (31) can rotate relative to the fixed seat (32) around the axis of the connecting column (311).
4. The reverse wheel device for adjusting the tightness of steel cord twisting according to claim 3, characterized in that, A threaded section is provided at the end of the connecting column (311), and a nut (34) is connected to the threaded section of the connecting column (311), and the nut (34) is used to press the fixed seat (32) to fix the reverse wheel seat (31) and the fixed seat (32).
5. The reverse wheel device for adjusting the tightness of steel cord twisting according to claim 1, characterized in that, The rotation axis of the reverse wheel seat (31) is in the same plane as the axes of the first wire passing groove (201) and the second wire passing groove (202).
6. The reverse wheel device for adjusting the tightness of steel cord twisting according to claim 5, characterized in that, The included angle between the rotation axis of the reverse wheel seat (31) and the axis of the second wire passing groove (202) is less than 30°.
7. The reverse wheel device for adjusting the tightness of steel cord twisting according to claim 1, characterized in that The outer surface (331) of the reverse wheel (33) is for the steel cord to bypass, and the cross section of the outer surface (331) of the reverse wheel (33) is U-shaped.
8. The reverse wheel device for adjusting the twist tightness of steel cord according to claim 1, characterized in that, The hardness of the reverse wheel (33) is at least HRC65.