Bar high-speed rounding rolling device
By designing a high-speed bar rounding rolling device including a base, a pull rod, an actuator assembly and a die head assembly, the problems of complex equipment, high cost and unstable forming in the existing technology are solved, and a simple, low-cost and highly versatile bar forming effect is achieved, which is suitable for mass production of small-diameter bars.
Patent Information
- Application Number
- CN202422051229.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-22
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-08-22
AI Technical Summary
The existing bar forming process has problems such as large equipment investment, low forming precision, low production efficiency and poor versatility. In addition, the rolling forming equipment has a complex structure and the rollers are easily affected by temperature, resulting in unstable forming effects.
A high-speed bar rounding rolling device is used, which includes a base, a pull rod, an actuator assembly, an adjustment assembly and a die assembly. The die assembly can be synchronously moved closer or farther away through the drive shaft and the adjustment assembly to adapt to bars of different diameters. Combined with the cooling oil circuit and lubrication structure, the bearing stability and roller temperature control are guaranteed.
It has achieved a simple structure, low cost, strong versatility and stable forming effect, is suitable for mass production of small diameter bars, and ensures the dimensional tolerance and forming accuracy of the bars under high-speed operation.
Smart Images
Figure CN223405637U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of metal plastic forming, in particular to a high-speed rounding rolling device for bars. Background Art
[0002] Bars are widely used in the national economy and are an important basic raw material in the field of metal plastic forming processes and equipment. Traditionally, forging is the primary process for forming bars. While forging, due to the multi-directional compressive stress and strain conditions in the material, can enhance plastic deformation within the metal, it is limited by high equipment investment, low forming precision, and low production efficiency. It is generally suitable for the ingot forming of large-diameter round bars. To overcome the low precision and low production efficiency of forging, rolling is currently commonly used. Rolling replaces forging with rolling, using multiple rollers to precisely shape round wire, achieving satisfactory precision and improving production efficiency. Rolling equipment primarily includes multi-stand two-roller horizontal rolling, two-roller continuous rolling, three-roller continuous rolling, planetary rolling, and spiral rolling. However, these complex structural designs result in high investment costs and are limited to bars of specific diameters, making them less versatile. Furthermore, the rollers used in rolling are easily affected by temperature and deform, resulting in unstable bar forming. Utility Model Content
[0003] The technical problem to be solved by the utility model is to overcome the deficiencies in the prior art and provide a high-speed bar rounding rolling device with simple structural design, low manufacturing cost, strong versatility and stable forming effect.
[0004] The technical solution adopted by the utility model to solve its technical problems is: a high-speed rounding rolling device for bars, characterized in that: it includes a base, a pull rod, an execution assembly, an adjustment assembly and a die assembly, the base is two, which are arranged with relative intervals in the horizontal direction, and the four corner ends of the bases are respectively connected by pull rods, the execution assembly is in two groups, which are relatively arranged on the two bases, the execution assembly includes a drive shaft, the drive shaft passes through the middle of the base and rotates with the base, a through hole is provided in the drive shaft, and the opposite ends of the drive shaft are connected to the die assembly through the adjustment assembly, each group of the adjustment assembly corresponds to three groups of die assemblies, and the three groups of die assemblies are arranged in an equilateral triangle, the die assembly includes a rolling roller, and the wheel rim of the rolling roller is provided with a rolling groove.
[0005] Furthermore, the actuator also includes a housing, a worm wheel, a worm and a driving member. The housing is installed on the outside of the base, the worm wheel is arranged in the housing and is mounted on the outside of the drive shaft, the opposite end of the drive shaft is connected to the adjustment assembly, the worm longitudinally passes through the top of the housing and rotates with the housing, the middle part of the worm is engaged with the worm wheel, and the driving member is connected to one end of the worm.
[0006] Furthermore, the actuator also includes a dial and a display. The outer end of the drive shaft extends outside the shell. The dial is installed in a mounting groove opened in the middle of the outer side of the shell and is sleeved on the outer end of the drive shaft. The outer end of the drive shaft is respectively fitted with the shell and the dial. The display is respectively installed on the front and rear sides of the top of the shell and is sleeved on the worm.
[0007] Furthermore, the adjustment assembly includes an adjustment seat and a bracket. The adjustment seat is sleeved on the opposite end of the drive shaft and is threadedly engaged with the drive shaft. There are three brackets, which are evenly arranged along the circumference of the adjustment seat. One end of the bracket is hinged to the inner side of the base, and the other end is hinged to the adjustment seat. The die head assembly is installed in the middle of the bracket.
[0008] Furthermore, the die head assembly also includes a connecting shaft, a sleeve, a bearing, a retaining ring, a roller seat, a retaining ring, a first quick-release part and a second quick-release part. The connecting shaft passes through the middle of the bracket and is locked by a nut. A cooling oil circuit is provided in the connecting shaft. An annular groove and a first radial hole are provided in the middle of the connecting shaft. The annular groove is connected to the cooling oil circuit through the first radial hole. The sleeve is sleeved on the middle of the connecting shaft. A second radial hole connected to the annular groove is provided in the middle of the sleeve. The roller seat is sleeved on the sleeve through the bearing. There are two bearings, which are arranged at intervals along the axial direction of the sleeve. The retaining ring is relatively arranged on the outside of the two bearings and is sleeved on the sleeve. The second radial hole and the retaining ring are both arranged between the two bearings. The retaining ring is installed on the inner wall of the roller seat and contacts the outer rings of the two bearings. The first quick-release part locks the bearing and the retaining ring as a whole. The rolling roller is sleeved on the middle of the roller seat and is locked by the second quick-release part.
[0009] Furthermore, a hanging ring is installed on the top of the base.
[0010] Furthermore, the driving member is a handle or a motor.
[0011] The beneficial effects of the utility model are:
[0012] (1) In the present invention, the execution component drives the adjustment component to move axially, thereby driving the corresponding three groups of die head components to synchronously approach or move away from the rod, and adjust the relative angle of the rollers within a certain range to adapt to rods of different diameters (10mm-20mm). It has strong versatility, ensures the forming effect, has a simple structural design, and has low manufacturing cost. It is suitable for mass forming of small-diameter rods.
[0013] (2) The arrangement of the cooling oil circuit, the first radial hole, the annular groove and the second radial hole in the present invention realizes the lubrication of the bearings and the cooling of the rolls, thereby ensuring the stability of the bearings under high-speed operation and controlling the temperature of the rolls within a suitable range so that the rolls will not expand or contract due to the large friction heat, thereby ensuring the dimensional tolerance of the rolled bar and thus ensuring the stability of the forming effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The present invention will be further described below with reference to the accompanying drawings and implementation examples.
[0015] Figure 1 It is a structural diagram of the utility model;
[0016] Figure 2 It is a schematic diagram of the adjustment component in the utility model;
[0017] Figure 3 It is a cross-sectional view of the execution component of the utility model;
[0018] Figure 4 It is a cross-sectional view of the die head assembly of the present invention;
[0019] Figure 5 It is a schematic diagram of the second radial hole in the present invention;
[0020] Figure 6 It is a schematic diagram of the connecting shaft in the utility model.
[0021] In the figure: 100, base; 200, pull rod; 300, actuator; 310, drive shaft; 311, through hole; 320, housing; 321, mounting groove; 330, worm gear; 340, worm; 350, drive member; 360, dial; 370, display; 400, adjustment assembly; 410, adjustment seat; 420, bracket; 500, die assembly; 510, roller; 511, rolling groove; 520, connecting shaft; 521, cooling oil circuit; 522, annular groove; 523, first radial hole; 530, bushing; 531, second radial hole; 540, bearing; 550, retaining ring; 560, roller seat; 570, retaining ring; 580, first quick-release part; 590, second quick-release part; 600, lifting ring. DETAILED DESCRIPTION
[0022] The present invention will now be further described with reference to the accompanying drawings, which are simplified schematic diagrams illustrating the basic structure of the present invention in a schematic manner, and thus only show components related to the present invention.
[0023] like Figures 1-4As shown, a high-speed rounding rolling device for bars includes a base 100, a pull rod 200, an executive assembly 300, an adjustment assembly 400 and a die assembly 500. There are two bases 100, which are arranged at opposite intervals in the horizontal direction, and their four corner ends are connected by pull rods 200 respectively. There are two groups of executive assemblies 300, which are relatively arranged on the two bases 100. The executive assembly 300 includes a drive shaft 310, which passes through the middle of the base 100 and rotates with the base 100. A through hole 311 is provided in the drive shaft 310. The opposite ends of the drive shaft 310 are connected to the die assembly 500 through the adjustment assembly 400 respectively. Each group of adjustment assemblies 400 corresponds to three groups of die assemblies 500, and the three groups of die assemblies 500 are arranged in an equilateral triangle. The die assembly 500 includes a rolling roller 510, and the rim of the rolling roller 510 is provided with a rolling groove 511. The actuator assembly 300 drives the adjustment assembly 400 to move axially, thereby driving the corresponding three sets of die head assemblies 500 to synchronously move closer to or further away from the bar. The relative angle of the rollers 510 can be adjusted within a certain range to accommodate bars of varying diameters (10mm-20mm). This system is highly versatile, ensuring effective forming results, and features a simple structural design and low manufacturing costs, making it suitable for mass-producing bar material. Specifically, the angle between the axes of any two adjacent rollers 510 in the three sets of die head assemblies 500 is 120°. The rollers 510 are made of high-hardness carbide steel. A lifting ring 600 is installed at the top of the base 100 to facilitate lifting of the entire device. The lifting rings 600 are positioned diagonally across the two bases 100 to ensure stability during lifting.
[0024] like Figure 1-Figure 3 As shown, the actuator 300 also includes a housing 320, a worm wheel 330, a worm 340, and a drive member 350. The housing 320 is mounted on the outside of the base 100. The worm wheel 330 is disposed within the housing 320 and is mounted on the outside of the drive shaft 310. The opposite end of the drive shaft 310 is connected to the adjustment assembly 400. The worm 340 longitudinally passes through the top of the housing 320 and rotates with the housing 320. The middle portion of the worm 340 is engaged with the worm wheel 330. The drive member 350 is connected to one end of the worm 340. Specifically, the drive member 350 is a handle or a motor. The worm 340 is driven to rotate by the drive member 350, which in turn drives the worm wheel 330 to rotate, thereby synchronously driving the drive shaft 310 to rotate.
[0025] like Figure 1-Figure 3As shown, actuator assembly 300 also includes a dial 360 and a display 370. The outer end of drive shaft 310 extends outside housing 320. The dial 360 is mounted within a mounting slot 321 defined in the center of the outer side of housing 320 and sleeved over the outer end of drive shaft 310. The outer end of drive shaft 310 is clearance-fitted with housing 320 and dial 360, respectively. Displays 370 are mounted on the front and rear sides of the top of housing 320 and sleeved over worm 340. The dial 360 and display 370 visually display the axial feed rate of adjustment assembly 400 on drive shaft 310, enabling precise, stepless adjustment of die assembly 500. Furthermore, the contrast between dial 360 and display 370 further enhances adjustment accuracy. The dial 360, mounted within mounting slot 321, provides protection and enhances the aesthetics of the device. Specifically, an arrow is engraved on the outer end surface of drive shaft 310.
[0026] like Figure 1 and Figure 2 As shown, the adjustment assembly 400 includes an adjustment base 410 and a bracket 420. The adjustment base 410 is sleeved on the opposite end of the drive shaft 310 and is threadedly engaged with the drive shaft 310. There are three brackets 420, evenly arranged along the circumference of the adjustment base 410. One end of the bracket 420 is hinged to the inner side of the base 100 (this hinge serves as a fulcrum), and the other end is hinged to the adjustment base 410. The die assembly 500 is mounted in the middle of the bracket 420. Due to the threaded engagement between the drive shaft 310 and the adjustment base 410, the rotation of the drive shaft 310 is converted into linear motion of the adjustment base 410. The linear motion of the adjustment base 410 drives the bracket 420 to swing about the fulcrum, thereby causing the die assembly 500 to move closer to or away from the rod. Specifically, the middle portion of the bracket 420 is U-shaped.
[0027] like Figure 1 、 Figure 4-Figure 6As shown, the die assembly 500 also includes a connecting shaft 520, a sleeve 530, a bearing 540, a retaining ring 550, a roller seat 560, a retaining ring 570, a first quick-release part 580 and a second quick-release part 590. The connecting shaft 520 passes through the middle of the bracket 420 and is locked by a nut. A cooling oil path 521 is provided in the connecting shaft 520. An annular groove 522 and a first radial hole 523 are provided in the middle of the connecting shaft 520. The annular groove 522 is connected to the cooling oil path 521 through the first radial hole 523. The sleeve 530 is sleeved on the middle of the connecting shaft 520. The sleeve 530 is provided in the middle of the annular groove. The second radial hole 531 is connected to 522, and the roller seat 560 is mounted on the sleeve 530 through the bearing 540. There are two bearings 540, which are arranged at intervals along the axial direction of the sleeve 530. The retaining ring 550 is relatively arranged on the outside of the two bearings 540 and is mounted on the sleeve 530. The second radial hole 531 and the retaining ring 570 are both arranged between the two bearings 540. The retaining ring 570 is installed on the inner wall of the roller seat 560 and contacts the outer rings of the two bearings 540. The first quick-release part 580 locks the bearing 540 and the retaining ring 550 as a whole. The roller 510 is mounted on the middle part of the roller seat 560 and is locked by the second quick-release part 590. The arrangement of the cooling oil circuit 521, first radial hole 523, annular groove 522, and second radial hole 531 lubricates the bearing 540 and cools the roller 510 during operation, ensuring the stability of the bearing 540 during high-speed operation. This also controls the temperature of the roller 510 within a suitable range, preventing the roller 510 from expanding or contracting due to excessive frictional heat, thereby ensuring the dimensional tolerance of the rolled bar and thus the stability of the forming effect. Cooling medium flow path: cooling oil circuit 521 → first radial hole 523 → annular groove 522 → second radial hole 531. The coordinated arrangement of the nut, first quick-release member 580, and second quick-release member 590 enables a quick-release design for the roller 510. During actual production, when bars of different materials, diameters, or surfaces (knurled or smooth) need to be replaced, rapid replacement can be achieved, reducing operational difficulty and downtime. Specifically, the first quick-release member 580 and the second quick-release member 590 are both prior art, and their specific structures will not be described in detail here.
[0028] During operation, the actuator 300 drives the adjustment assembly 400 to move axially, causing the three sets of die head assemblies 500 to synchronously move away from the bar. The bar then passes through the through hole 311 in the left drive shaft 310, the rolling hole enclosed by the rolling groove 511 on the rollers 510 of the three sets of die head assemblies 500 on the left, the rolling hole enclosed by the rolling groove 511 on the rollers 510 of the three sets of die head assemblies 500 on the right, and the through hole 311 in the right drive shaft 310. The actuator 300 then drives the adjustment assembly 400 again to synchronously move the three sets of die head assemblies 500 closer to the bar until the required process size is reached. Finally, the bar is driven by the conveying device (not shown) to achieve bar rolling. According to actual needs, the entire device can be connected in series.
[0029] The above-mentioned implementation mode is only for illustrating the technical concept and features of the utility model. Its purpose is to enable people familiar with this technology to understand the content of the utility model and implement it. It cannot be used to limit the scope of protection of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the scope of protection of the utility model.
Claims
1. A high-speed rounding rolling device for bars, characterized in that: The invention comprises a base (100), a pull rod (200), an executive component (300), an adjustment component (400) and a die head component (500), wherein the base (100) is two and is arranged at a relative interval in the transverse direction, and the four corner ends thereof are connected respectively by the pull rod (200), the executive component (300) is two groups and is arranged on the two bases (100) relatively, and the executive component (300) includes a drive shaft (310), and the drive shaft (310) passes through the middle of the base (100) and is connected to the base (100). The seat (100) is rotatably engaged, a through hole (311) is provided in the driving shaft (310), and opposite ends of the driving shaft (310) are connected to the die head assembly (500) through the adjustment assembly (400), each group of the adjustment assembly (400) corresponds to three groups of die head assemblies (500), and the three groups of die head assemblies (500) are arranged in an equilateral triangle, and the die head assembly (500) includes a roller (510), and the rim of the roller (510) is provided with a rolling groove (511).
2. The high-speed rounding rolling device for bars according to claim 1, characterized in that: The actuator assembly (300) further includes a housing (320), a worm wheel (330), a worm (340) and a driving member (350). The housing (320) is mounted on the outside of the base (100). The worm wheel (330) is disposed in the housing (320) and is sleeved on the outside of the drive shaft (310). The opposite end of the drive shaft (310) is connected to the adjustment assembly (400). The worm (340) longitudinally passes through the top end of the housing (320) and is rotatably engaged with the housing (320). The middle portion of the worm (340) is meshed with the worm wheel (330). The driving member (350) is connected to one end of the worm (340).
3. The high-speed rounding rolling device for bars according to claim 2, characterized in that: The actuator assembly (300) further includes a dial (360) and a display (370). The outer end of the drive shaft (310) extends outside the housing (320). The dial (360) is mounted in a mounting groove (321) provided in the middle of the outer side of the housing (320) and is sleeved on the outer end of the drive shaft (310). The outer end of the drive shaft (310) is clearance-matched with the housing (320) and the dial (360). The display (370) is mounted on the front and rear sides of the top end of the housing (320) and is sleeved on the worm (340).
4. The high-speed bar rounding rolling device according to claim 1, characterized in that: The adjustment assembly (400) includes an adjustment seat (410) and a bracket (420). The adjustment seat (410) is sleeved on the opposite end of the drive shaft (310) and is threadedly engaged with the drive shaft (310). There are three brackets (420) that are evenly arranged along the circumference of the adjustment seat (410). One end of the bracket (420) is hinged to the inner side of the base (100), and the other end is hinged to the adjustment seat (410). The die head assembly (500) is installed in the middle of the bracket (420).
5. The high-speed bar rounding rolling device according to claim 4, characterized in that: The die head assembly (500) further comprises a connecting shaft (520), a sleeve (530), a bearing (540), a retaining ring (550), a roller seat (560), a retaining ring (570), a first quick release member (580) and a second quick release member (590). The connecting shaft (520) passes through the middle of the bracket (420) and is locked by a nut. A cooling oil circuit (521) is provided in the connecting shaft (520). An annular groove (522) and a first radial hole (523) are provided in the middle of the connecting shaft (520). The annular groove (522) is connected to the cooling oil circuit (521) through the first radial hole (523). The sleeve (530) is sleeved on the middle of the connecting shaft (520). The sleeve (530) is provided in the middle of the connecting shaft (520). 22), the roller seat (560) is sleeved on the shaft sleeve (530) through the bearing (540), the bearings (540) are two and are spaced apart along the axial direction of the shaft sleeve (530), the retaining ring (550) is relatively arranged on the outside of the two bearings (540) and sleeved on the shaft sleeve (530), the second radial hole (531) and the retaining ring (570) are both arranged between the two bearings (540), the retaining ring (570) is installed on the inner wall of the roller seat (560) and contacts the outer rings of the two bearings (540), the first quick-release part (580) locks the bearings (540) and the retaining ring (550) as a whole, the roller (510) is sleeved on the middle part of the roller seat (560) and is locked by the second quick-release part (590).
6. The high-speed bar rounding rolling device according to claim 1, characterized in that: A hanging ring (600) is installed on the top of the base (100).
7. The high-speed bar rounding rolling device according to claim 2, characterized in that: The driving member (350) is a handle or a motor.