Bar pulling and straightening mechanism
By controlling the position of the straightening rollers through the support plate and adjustment mechanism, the problem of excessive compression of the bar stock by the traditional straightening mechanism is solved, and precise straightening and high-quality bar stock surface treatment are achieved.
Patent Information
- Application Number
- CN202422947745.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-30
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-11-30
AI Technical Summary
Traditional straightening mechanisms subject the bar stock to repeated compression, resulting in quality degradation and surface scratches. They cannot achieve precise straightening and also affect the quality of the bar stock.
The straightening wheel is rotated by a support plate to the bent part for straightening, and the straightening wheel is separated from the unbent part by an adjustment mechanism to avoid further compression.
It achieves precise straightening of the bars, avoids quality degradation and surface scratches caused by excessive extrusion, and improves the surface quality of the bars.
Smart Images
Figure CN223603174U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the bar straightening technical field, more specifically relates to a bar straightening mechanism. BACKGROUND
[0002] Metal bar is reduced in diameter after drawing, and due to the system error of drawing mechanism and the stress problem of bar material, slight bending will appear, so it needs to be accurately straightened once or more times before being processed into other products.
[0003] The traditional straightening mechanism currently comprises multiple pairs of straightening wheels, and in order to straighten the bending in all directions on the bar, the multiple pairs of straightening wheels are arranged in different planes, and the bar is straightened after being extruded by the multiple pairs of straightening wheels in turn.
[0004] However, the multiple pairs of straightening wheels not only repeatedly extrude the drawn bar, but also make the bar bend, especially the straight part of the bar, which causes the quality of the bar to decrease, and the surface of the bar is more likely to be scratched after being straightened by the multiple pairs of straightening wheels, affecting the surface quality of the bar. UTILITY MODEL CONTENT
[0005] In view of the deficiencies of the prior art, the utility model provides a bar straightening mechanism, which can accurately straighten the drawn bar and avoid excessive extrusion of the bar to affect the quality of the bar.
[0006] To achieve the above object, the utility model provides the following technical scheme: a bar straightening mechanism, comprising a fixed support, a cylindrical annular support is arranged on the fixed support, a support plate is arranged in the annular support, and the support plate rotates around the center of the annular support, two straightening wheels are rotatably connected to the support plate, a driving mechanism is connected to the support plate, and an adjusting mechanism is arranged between the two straightening wheels.
[0007] Further, the driving mechanism comprises a first motor, a driving gear and an arc-shaped sliding plate, the arc-shaped sliding plate is attached to the annular support and is slidingly connected to the annular support, the support plate is connected to the arc-shaped sliding plate to realize the rotation of the support plate, the first motor is connected to the driving gear, and a rack is arranged on the outer side surface of the arc-shaped sliding plate and engaged with the driving gear.
[0008] Further, the adjusting mechanism comprises a second motor, a lead screw, a nut and a connecting rod, the second motor is connected to the lead screw, the nut is threadedly connected to the lead screw, and the nut is slidingly connected to the support plate, the connecting rod is hingedly connected to the nut and the straightening wheel at both ends, and the straightening wheel is slidingly connected to the support plate.
[0009] Further, the support plate is provided with a sliding groove, the sliding groove is slidably connected with a sliding block, and the straightening wheel is rotationally connected with the sliding block, so that the rotation and sliding of the straightening wheel are realized.
[0010] Further, the inner side of the annular support is provided with an annular groove, and the arc-shaped sliding plate slides in the annular groove.
[0011] Compared with the prior art, the beneficial effects of the utility model are that when the bar enters the annular support, the support plate rotates to make the two straightening wheels be in a proper straightening plane, i.e. the plane where the bar is bent, and then the two straightening wheels straighten the bent part of the bar, and when the unbent part of the bar passes, the two straightening wheels are moved away through the adjusting mechanism, so that the two straightening wheels are separated from the bar, and the quality of the bar is not affected by continuous extrusion. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 It is a structural schematic view of the bar straightening mechanism of the utility model;
[0013] Figure 2 It is Figure 1 It is a sectional view of A-A direction.
[0014] Reference signs: fixed support 1, annular support 2, support plate 3, straightening wheel 4, first motor 5, driving gear 6, arc-shaped sliding plate 7, second motor 8, screw rod 9, nut 10, connecting rod 11, sliding groove 12, sliding block 13, annular groove 14, support rod 15. DETAILED DESCRIPTION
[0015] In the description of the utility model, it should be explained that for the orientation words, such as the terms "center", "transverse (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation and positional relationship based on 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 cannot be understood as indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific protection scope of the utility model.
[0016] In addition, if the terms "first", "second" are used for the purpose of description, they cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the "first", "second" features can be explicitly or implicitly included one or more features, and in the description of the utility model, the meaning of "several", "several" is two or more than two, unless otherwise explicitly specified.
[0017] Referring to Figure 1 and Figure 2 Further described in the utility model.
[0018] A kind of bar straightening mechanism, including fixed support 1, the fixed support 1 is provided with annular support 2 of cylindrical shape, support plate 3 is provided in annular support 2, and support plate 3 rotates around the center of annular support 2, two straightening wheels 4 are rotatably connected on support plate 3, driving mechanism is connected on support plate 3, adjusting mechanism is provided between the two straightening wheels 4.
[0019] Specifically, the fixed support 1 is arranged in the bar drawing mechanism, when the bar passes through the die and is drawn out, it directly passes through the annular support 2 and is directly straightened.
[0020] Specifically, a visual sensor is arranged on the annular support 2 at the entrance of the bar, for detecting the bending position and bending degree of the bar.
[0021] As shown in Figure 1 and Figure 2 When the bar enters the annular support 2, the support plate 3 rotates to make the two straightening wheels 4 be in the appropriate straightening plane, i.e. the plane where the bar is bent, and then the two straightening wheels 4 straighten the bent part of the bar, and when the unbent part of the bar passes through, the two straightening wheels 4 are moved away by the adjusting mechanism to separate from the bar, so as to avoid continuously pressing the bar and affecting the quality of the bar.
[0022] As shown in Figure 1 In this example, the driving mechanism preferably includes a first motor 5, a driving gear 6 and an arc-shaped sliding plate 7, the arc-shaped sliding plate 7 is attached to the annular support 2 and is slidingly connected with the annular support 2, the support plate 3 is connected to the arc-shaped sliding plate 7 to realize the rotation of the support plate 3, the first motor 5 is connected to the driving gear 6, and a rack (not shown in the drawing) is arranged on the outer side of the arc-shaped sliding plate 7 and engages with the driving gear 6.
[0023] As shown in Figure 1 Specifically, the driving mechanism is located below the annular support 2, the annular support 2 is provided with a through slot, and the driving gear 6 passes through the through slot and engages with the rack on the arc-shaped sliding plate 7.
[0024] As shown in Figure 1 Specifically, a plurality of support rods 15 are arranged between the support plate 3 and the arc-shaped sliding plate 7 to improve the connection between the support plate 3 and the arc-shaped sliding plate 7.
[0025] As shown in Figure 1 and Figure 2As shown in the preferred embodiment of the present example, the adjusting mechanism comprises a second motor 8, a screw rod 9, a nut 10 and a connecting rod 11, the second motor 8 is connected with the screw rod 9, the nut 10 is threadedly connected with the screw rod 9, and the nut 10 is slidingly connected with the support plate 3, the connecting rod 11 is hingedly connected with the nut 10 and the straightening wheel 4 at two ends thereof, and the straightening wheel 4 is slidingly connected with the support plate 3.
[0026] Specifically, the second motor 8 drives the screw rod 9 to rotate, so that the nut 10 threadedly connected with the screw rod 9 moves along the axial direction of the screw rod 9, and the relative movement of the two straightening wheels 4 is realized through the linkage of the connecting rod 11.
[0027] As shown in the preferred embodiment of the present example, the support plate 3 is provided with a sliding groove 12, the sliding groove 12 is slidingly connected with a sliding block 13, and the straightening wheel 4 is rotatably connected with the sliding block 13, so as to realize the rotation and sliding of the straightening wheel 4. Figure 1
[0028] As shown in the preferred embodiment of the present example, the inner side of the annular support 2 is provided with an annular groove 14, and the arc-shaped sliding plate 7 is slidingly arranged in the annular groove 14. Figure 1 Figure 2 As shown in the preferred embodiment of the present example, the inner side of the annular support 2 is provided with an annular groove 14, and the arc-shaped sliding plate 7 is slidingly arranged in the annular groove 14.
[0029] Specifically, a limiting ring can be arranged on the side wall of the annular groove 14, and a limiting groove corresponding to the limiting ring is arranged on the side surface of the arc-shaped sliding plate 7.
[0030] The above is only the preferred embodiment of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical solution falling within the concept of the present application shall be considered as falling within the protection scope of the present application. It should be noted that, for ordinary skilled in the art, some improvements and decorations without departing from the principle of the present application shall also be considered as falling within the protection scope of the present application.
Claims
1. A bar-pulling straightening mechanism for straightening a bar, characterized by: The utility model relates to a straightening device, including fixed support, be provided with the annular support of cylinder on fixed support, be provided with support plate in annular support, and support plate rotates around the center of annular support, two straightening wheels are rotatably connected on support plate, drive mechanism is connected on support plate, and be provided with adjusting mechanism between two straightening wheels. The drive mechanism includes a first motor, a drive gear and an arc-shaped slide plate, the arc-shaped slide plate is attached to the annular support and is in sliding connection with the annular support, the support plate is connected to the arc-shaped slide plate to realize the rotation of the support plate, the first motor is connected to the drive gear, and a rack is arranged on the outer side surface of the arc-shaped slide plate and is in engagement with the drive gear.
2. The bar-pulling straightening mechanism according to claim 1, characterized in that: The adjusting mechanism includes a second motor, a screw rod, a nut and a connecting rod, the second motor is connected to the screw rod, the nut is in threaded connection with the screw rod, and the nut is in sliding connection with the support plate, the two ends of the connecting rod are respectively hinged to the nut and the straightening wheel, and the straightening wheel is in sliding connection with the support plate.
3. The bar-pulling straightening mechanism according to claim 2, characterized in that: The support plate is provided with a sliding groove, the sliding groove is in sliding connection with a sliding block, the straightening wheel is in rotating connection with the sliding block to realize the rotation and sliding of the straightening wheel.
4. The bar-pulling straightening mechanism according to claim 1, characterized in that: The inner side surface of the annular support is provided with an annular groove, and the arc-shaped slide plate is in sliding connection with the annular groove.