Rolling device for producing steel bar with ribs on three surfaces

Abstract

The invention relates to the technical field of reinforcing steel bar machining, in particular to a rolling device for producing three-face ribbed reinforcing steel bars, which comprises a base and three rolling units, each rolling unit comprises a motor driving assembly, a bearing seat, a bearing, a transmission shaft and a roller, the bearing is mounted in the bearing seat, the transmission shaft coaxially penetrates through the bearing and the roller and is fixed with the roller, and the motor driving assembly drives the transmission shaft to rotate. The motor driving assembly drives the rollers to rotate through the transmission shaft to roll ribs on the surfaces of the steel bars. The included angle between the axes of any two adjacent rollers is 120 degrees, and a rolling channel is formed among the three rollers. According to the rolling device, the motor driving assembly is adopted to drive the roller to conduct active transmission, a bearing in a traditional process technology is moved out of the inner center of the roller, a bearing and a transmission shaft with larger sizes can be configured, larger rolling force can be borne, the geometric size of a steel bar rolled by the rolling device is more accurate, the shape of a rolled crescent rib is fuller, and the service life of the steel bar is prolonged. The concrete anchoring performance is good, the concrete bearing capacity is large, and the building quality is effectively guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of steel bar processing, and in particular to a rolling device for producing three-sided ribbed steel bars. Background Art

[0002] During the processing of steel bars, ribs are usually rolled on the surface, because the ribs on the surface of the steel bars form a mechanical bite with the concrete. When the concrete is subjected to external forces, these ribs can effectively prevent the relative slip between the steel bars and the concrete, so that the two can work together to bear the external forces together, greatly improving the bond strength between the steel bars and the concrete. In addition, the presence of ribs increases the contact area between the steel bars and the concrete, and forms many tiny uneven surfaces on the contact surface, thereby increasing the friction. When the structure is subjected to force, this friction can better transmit stress and make the bond between the steel bars and the concrete tighter. The ribs of ribbed steel bars can better combine with the concrete within the anchoring length, provide sufficient anchoring force, prevent the steel bars from being pulled out or slipping at the anchoring position, and ensure the safety and stability of the structure.

[0003] At present, steel bars are usually rolled with ribs on three sides. The traditional rolling process of three-sided ribbed steel bars is a drawing and scoring rolling method. The roller transmission method is passive and unpowered. In this rolling process, the bearings need to be assembled inside the rollers, resulting in a small bearing configuration and a small transmission shaft diameter. This design structure cannot withstand large rolling forces, resulting in errors in the geometric dimensions of the rolled workpiece. The rolled crescent ribs do not meet the national standard requirements, and the anchoring performance with concrete is poor, resulting in a reduction in the concrete's load-bearing capacity, which poses a hidden danger to building quality. Summary of the invention

[0004] The purpose of the present invention is to provide a rolling device for producing three-sided ribbed steel bars to solve the technical problem that the traditional ribbed steel bar rolling process easily leads to errors in the geometric dimensions of the rolled steel bars, thereby resulting in poor anchoring performance with concrete.

[0005] In order to solve the above problems, the present invention provides a rolling device for producing three-sided ribbed steel bars, which adopts the following technical solutions: A rolling device for producing three-sided ribbed steel bars comprises a base and three groups of rolling units mounted on the base; each group of rolling units comprises a motor drive assembly, a bearing seat, a bearing, a transmission shaft and a roller, the bearing is mounted in the bearing seat, the transmission shaft coaxially passes through the bearing and the roller and is fixed to the roller, the motor drive assembly is connected to the transmission shaft to drive the roller to rotate to roll ribs on the surface of the steel bar; the axis angle between any two adjacent rollers is 120 degrees, and a rolling channel for the steel bar to pass through is formed between the three rollers.

[0006] Beneficial effects: The present invention adopts three sets of motor drive components to drive three rollers to rotate respectively to roll ribs on three sides of the steel bar. The transmission mode of the roller is changed from the traditional passive mode to the active mode. This mode can move the bearing from the inner part of the roller to the outside. By setting a separate bearing seat and installing the bearing in the bearing seat, larger bearings and transmission shafts can be configured, which can withstand greater rolling forces accordingly. The geometric dimensions of the rolled steel bar are more precise, the rolled crescent ribs are fuller in shape, the anchoring performance with concrete is good, the concrete has a large load-bearing capacity, and the quality of the building is effectively guaranteed.

[0007] Furthermore, the positions of the rollers in each group of rolling units are adjustable in a direction perpendicular to the axis of the rollers, and a universal joint coupling is connected between the driving assembly and the transmission shaft.

[0008] Beneficial effects: The use of a universal joint coupling can ensure that after the position of the rolling rollers is changed, the motor drive assembly can still transmit power to the rolling rollers normally. In addition, after the position of the rolling rollers can be adjusted, it can be avoided that the three rolling rollers do not contact the three sides of the steel bars due to installation errors. At the same time, after the position of the rolling rollers can be adjusted, the size of the rolling channel can be adjusted, thereby realizing the rolling of steel bars of different diameters, thereby improving the applicability of the entire device.

[0009] Furthermore, the bearing seat is slidably assembled on the base along the axial direction perpendicular to the corresponding rolling roller. The base is provided with an elevator support corresponding to the rolling unit one by one. An elevator is fixed on the elevator support. The output end of the elevator is connected to the bearing seat to drive the bearing seat to move linearly.

[0010] Beneficial effect: The bearing seat can be automatically moved by the lift, which is convenient for automatic control.

[0011] Furthermore, the lift is a worm gear screw lift, comprising a lifting motor, a worm connected to the output shaft of the lifting motor, a worm wheel meshing with the worm, a lifting screw coaxial with the worm wheel and mating with the worm wheel thread, and a fixing plate is connected to one end of the lifting screw close to the bearing seat, and the fixing plate is connected to the bearing seat.

[0012] Beneficial effects: The worm gear screw lift has strong self-locking property, high transmission efficiency, high transmission accuracy, large bearing capacity, compact overall structure and small size.

[0013] Furthermore, a bearing seat support is provided on the base at a position corresponding to each bearing seat, and a sliding groove is provided on the bearing seat support to cooperate with the guide sliding of the fixed plate.

[0014] Beneficial effects: The bearing seat and the bearing seat support are guided by the fixed plate, making the bearing seat more stable when moving, and it is only necessary to match the size of the slide groove with the size of the fixed plate, which can reduce the size of the bearing seat support and save costs.

[0015] Furthermore, it also includes a guide mechanism for guiding the steel bars, the guide mechanism includes a mounting seat, a guide seat, a guide block and a guide wheel, three guide blocks are provided and are all mounted on the guide seat, the three guide blocks are arranged at an angle of 120° in pairs, the guide wheel is used for guiding and contacting the steel bars, the guide wheels and the guide blocks are arranged one by one, and the three guide wheels are respectively rotatably assembled on the same end of the three guide blocks, a guide channel for guiding the steel bars to be rolled to pass through is formed between the three guide wheels, and the guide channel coincides with the central axis of the rolling channel.

[0016] Beneficial effect: The guide mechanism can guide the steel bar so that the steel bar can directly enter the rolling channel, ensuring that ribs can be evenly rolled out on three sides of the steel bar.

[0017] Furthermore, the guide seat is slidably assembled on the mounting seat along the axial direction of the guide channel.

[0018] Beneficial effect: When rolling ribs of steel bars of different specifications, the required guiding and rolling spacing between the guide seat and the roller is different. Therefore, when the guide seat and the mounting seat are slidably assembled, the installation distance between the guide seat and the roller can be freely adjusted.

[0019] Furthermore, the guide seat is provided with a through opening that penetrates the guide seat, and is also provided with guide grooves that correspond to and match the three guide blocks one by one, the guide grooves are connected to the through opening, and the guide blocks are positionally adjustable in a direction perpendicular to the extension of the corresponding guide grooves.

[0020] Beneficial effects: The position of the guide block is adjustable, which can adapt to steel bars of different diameters, and can also ensure that the three guide wheels can evenly contact the steel bar guide.

[0021] Furthermore, the guide seat is provided with a through hole that penetrates the guide groove at a position corresponding to each guide groove, and an adjusting nut is installed at the edge of the hole of the through hole located on the outside of the guide seat. The adjusting nut is threadedly connected with an adjusting bolt, and the end of the adjusting bolt is rotatably assembled with the corresponding guide block.

[0022] Beneficial effect: By adjusting the adjusting bolt, the angle of the guide block can be adjusted to achieve close contact between the guide wheel and the rolled workpiece, ensuring the precise geometric dimensions of the rolled workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein: Figure 1It is a three-dimensional schematic diagram of a rolling device for producing three-sided ribbed steel bars of the present invention; Figure 2 for Figure 1 The main view of Figure 3 It is a schematic diagram of the assembly between the motor drive assembly, the rollers and the elevator in the rolling device for producing three-sided ribbed steel bars of the present invention; Figure 4 The present invention is a schematic structural diagram of a guide mechanism in a rolling device for producing three-sided ribbed steel bars.

[0024] Description of reference numerals: 1. Base; 2. Fan; 3. Universal joint coupling; 4. Motor drive assembly; 5. Bearing seat; 6. Elevator; 7. Fixed plate; 8. Elevator support; 9. Roller; 10. Guide seat; 11. Mounting seat; 12. Bearing seat support; 13. Transmission shaft; 14. Guide block; 15. Guide wheel; 16. Adjusting bolt; 17. Adjusting nut; 18. Guide channel; 19. Slide; 20. Guide slot; 21. Air outlet. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0026] The principle and spirit of the present invention are explained in detail below with reference to several representative embodiments of the present invention.

[0027] Embodiment 1 of a rolling device for producing three-sided ribbed steel bars provided by the present invention: like Figure 1 and Figure 2 As shown, a rolling device for producing three-sided ribbed steel bars includes a base 1, three groups of rolling units installed on the base 1, a guide mechanism installed on the base 1 and an elevator 6 installed on the base 1.

[0028] Among them, Figure 1 As shown, the base 1 is in the shape of a rectangular box, including a vertical plate, a top plate, a bottom plate and a side plate. Two vertical plates are arranged in parallel and spaced apart. The top plate and the bottom plate are parallel and connected to the top and bottom ends of the two vertical plates respectively. The side plate has the largest area and is connected to the two vertical plates, the top plate and the bottom plate. One of the two vertical plates is provided with two fans 2 spaced apart in an upper and lower manner, and the other vertical plate is provided with an air outlet 21 at the position corresponding to the fan 2.

[0029] The structures of the three rolling units are the same. This embodiment describes one of the rolling units in detail. The rolling unit includes a motor drive assembly 4, a universal joint coupling 3, a bearing seat 5, a bearing, a transmission shaft 13 and a roller 9, wherein the bearing is installed in the bearing seat 5, one end of the transmission shaft 13 is connected to the end flange of the universal joint coupling 3 through a flange, and the other end of the transmission shaft 13 coaxially passes through the bearing and the roller 9 and is fixed to the roller 9. The assembly method of the transmission shaft 13 and the roller 9 is the existing technology, for example, a keyway and key connection method can be used. Of course, the roller 9 can also be sleeved on the transmission shaft 13 and pressed against the shoulder of the transmission shaft 13, an external thread is machined on the transmission shaft 9, and an end plate that matches the thread of the transmission shaft 13 is pressed on the end face of the roller 9, and the end plate is fixed to the roller 9 by bolts. In actual application, it is not limited to the above-mentioned installation method. The motor drive assembly 4 includes a driving motor and a reducer, the output end of the reducer is connected to the end of the universal joint coupling 3 away from the transmission shaft 13, when the driving motor is working, the universal joint coupling 3 is driven to rotate through the reducer, and then the roller 9 is driven to rotate through the transmission shaft 13, and the roller 9 can roll ribs on the surface of the steel bar. It can be seen that the roller 9 in this embodiment is driven to rotate by the driving motor, and the ribs are rolled on the surface of the steel bar by active transmission. This form can move the bearing from the inner part of the roller 9 to the outside. At this time, the bearing is fixed in a separate bearing seat 5, and correspondingly, a larger bearing and transmission shaft 13 can be configured, so that the roller 9 can withstand a larger rolling force, the geometric dimensions of the rolled steel bar are more accurate, the shape of the rolled crescent rib is fuller, and the anchoring performance with concrete is good.

[0030] In this embodiment, the lifter 6 is a worm screw lifter, which is fixed to the side plate by a lifter support 8. The lifter 6 includes a lift motor, a worm connected to the output shaft of the lift motor, a worm wheel meshing with the worm, and a lift screw coaxial with the worm wheel. The worm wheel has a central threaded hole, and the lift screw is threadedly connected to the worm wheel. The end of the lift screw near the bearing seat 5 is connected to a fixed plate 7, and the fixed plate 7 is connected to the bearing seat 5. When the lift motor is working, the worm rotates, driving the worm wheel to rotate, and then driving the lift screw to move linearly in a direction perpendicular to the axis of the roller 9. Since the lift screw is fixed to the bearing seat 5 by the fixed plate 7, the lift screw can drive the bearing seat 5 together with the roller 9 to move linearly. Under the action of the universal joint coupling 3, it can ensure that the power of the drive motor is transmitted to the transmission shaft 13, thereby ensuring the normal rotation of the roller 9.

[0031] In order to ensure the stability of the movement of the bearing seat 5, Figure 2 and Figure 3As shown, a bearing seat support 12 is fixed on the side plate at a position corresponding to each bearing seat 5, and a slide groove 19 is provided on the bearing seat support 12 for guiding and sliding with the fixed plate 7. The slide groove 19 only needs to be adapted to the size of the fixed plate 7, and there is no need to open a larger slide groove 19 on the bearing seat support 12, which correspondingly reduces the volume of the bearing seat support 12 and saves costs.

[0032] like Figure 2 As shown, in the three groups of rolling units, the angle between the axes of any two adjacent rollers 9 is 120°, the angle between the axes of any two adjacent transmission shafts 13 is 60°, and a rolling channel for the steel bars to pass through is formed between the three rollers 9. When the steel bars pass through the rolling channel, the three rollers 9 can roll the ribs on the surfaces of the steel bars from three sides respectively.

[0033] Since the position of the rollers 9 can be adjusted under the action of the elevator 6, when the three rollers 9 are adjusted in position, it can ensure that the three rollers 9 can roll the ribs of the steel bars at the same time, and at the same time, the size of the rolling channel can be adjusted to meet the rolling needs of steel bars of different diameters.

[0034] The guide mechanism is used to guide the steel bars. Figure 2 and Figure 4 As shown, the guide mechanism includes a mounting seat 11, a guide seat 10, a guide block 14 and a guide wheel 15. The guide seat 10 is provided with a through hole that penetrates the guide seat 10, and is also provided with three guide grooves 20 that are connected to the through hole. The guide block 14 is provided with three and is assembled in the guide grooves 20 in a one-to-one correspondence. The three guide blocks 14 are arranged at an angle of 120° in pairs, and the guide wheels 15 are arranged in a one-to-one correspondence with the guide blocks 14, and the three guide wheels 15 are respectively rotatably assembled at the same end of the three guide blocks 14. A guide channel 18 for guiding the steel bars to be rolled is formed between the three guide wheels 15. The guide wheels 15 are used to contact with the steel bars for guiding, and the guide channel 18 coincides with the central axis of the rolling channel. The steel bars pass through the guide channel 18 and then enter the rolling channel to roll the ribs.

[0035] In order to adapt to the position adjustment of the roller 9, in this embodiment, the position of the guide block 14 is adjustable in a direction perpendicular to the extension direction of the corresponding guide groove 20. Specifically, a through hole that penetrates the guide groove 20 is provided on the guide seat 10 at a position corresponding to each guide groove 20, and two through holes are provided at intervals along the extension direction of the guide groove 20. An adjusting nut 17 is installed at the edge of each through hole located on the outside of the guide seat 10, and an adjusting bolt 16 is threadedly connected to the adjusting nut 17. The end of the adjusting bolt 16 is rotatably assembled with the corresponding guide block 14. The rotational assembly here can be provided with a rotary bearing in the guide block 14, and the head of the adjusting bolt 16 is processed into a light rod section, and the light rod section is connected to the rotary bearing. When the adjusting bolt 16 is screwed, the adjusting bolt 16 moves in the direction of the through hole, thereby pushing the guide block 14 to move in the guide groove 20 along the length direction perpendicular to the guide groove 20. When the guide block 14 moves, the guide wheel 15 assembled on the guide block 14 moves accordingly, thereby adjusting the size of the guide channel 18 so that it can guide steel bars of different diameters to pass through. At the same time, it can also ensure that the three guide wheels 15 are in contact with the steel bar guide, ensuring the precise geometric dimensions of the rolled workpiece.

[0036] In addition, since different specifications of steel bars have different guiding and rolling spacing requirements between the guide seat 10 and the roller 9 when rolling ribs, in order to match steel bars of different diameters, the guide seat 10 and the mounting seat 11 are slidably assembled, that is, the guide seat 10 can move relative to the mounting seat 11, thereby adjusting the installation distance between the guide seat 10 and the roller 9.

[0037] The rolling device for producing three-sided ribbed steel bars of the present invention can roll out steel bars with precise geometric dimensions, ensuring the anchoring performance between the rolled steel bars and concrete. At the same time, the present invention can also adapt to the rolling of steel bars with different diameters, thereby increasing the scope of application.

[0038] Embodiment 2 of the rolling device for producing three-sided ribbed steel bars provided by the present invention: The main difference between it and Example 1 is: In Example 1, the positions of the rollers in each group of rolling units are adjustable in a direction perpendicular to the axis of the rollers.

[0039] In this embodiment, the position of the rollers in each rolling unit is adjusted and fixed in advance according to the diameter of the steel bar. At this time, the position of the rollers is not adjustable, so that the rolling device of the present invention is only suitable for rolling ribs of steel bars of specific diameters.

[0040] Embodiment 3 of the rolling device for producing three-sided ribbed steel bars provided by the present invention: The main difference between it and Example 1 is: In Example 1, the elevator is a worm gear screw elevator.

[0041] In this embodiment, the lift is a screw lift. Of course, in other embodiments, a linear module or an electric push rod may also be used.

[0042] Embodiment 4 of the rolling device for producing three-sided ribbed steel bars provided by the present invention: The main difference between it and Example 1 is: In Embodiment 1, the positions of the three guide blocks are adjustable in a direction perpendicular to the extension direction of the corresponding guide grooves.

[0043] In this embodiment, the position of each guide block is adjusted and fixed in advance according to the diameter of the steel bar. At this time, the position of the guide block is not adjustable, so that the rolling device of the present invention is only suitable for rolling ribs of steel bars of specific diameter sizes.

[0044] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A rolling device for producing three-sided ribbed steel bars, characterized in that: It includes a base and three groups of rolling units installed on the base; Each rolling unit includes a motor drive assembly, a bearing seat, a bearing, a transmission shaft and a roller, wherein the bearing is installed in the bearing seat, the transmission shaft coaxially passes through the bearing and the roller and is fixed to the roller, and the motor drive assembly is connected to the transmission shaft to drive the roller to rotate to roll the ribs on the surface of the steel bar; The included angle between the axes of any two adjacent rollers is 120°, and a rolling channel for the steel bars to pass through is formed between the three rollers.

2. A rolling device for producing three-sided ribbed steel bars according to claim 1, characterized in that: The positions of the rollers in each rolling unit are adjustable in a direction perpendicular to the axis of the rollers, and a universal joint coupling is connected between the driving assembly and the transmission shaft.

3. A rolling device for producing three-sided ribbed steel bars according to claim 2, characterized in that: The bearing seat is slidably assembled on the base along the axial direction perpendicular to the corresponding rolling roller. The base is provided with an elevator support corresponding to the rolling unit one by one. The elevator is fixed on the elevator support. The output end of the elevator is connected to the bearing seat to drive the bearing seat to move linearly.

4. A rolling device for producing three-sided ribbed steel bars according to claim 3, characterized in that: The lift is a worm gear screw lift, comprising a lift motor, a worm connected to the output shaft of the lift motor, a worm wheel meshing with the worm, a lift screw coaxial with the worm wheel and mating with the worm wheel thread, and a fixing plate connected to one end of the lift screw near the bearing seat, and the fixing plate is connected to the bearing seat.

5. A rolling device for producing three-sided ribbed steel bars according to claim 4, characterized in that: A bearing seat support is provided at a position corresponding to each bearing seat on the base, and a sliding groove which cooperates with the guide sliding of the fixing plate is provided on the bearing seat support.

6. A rolling device for producing three-sided ribbed steel bars according to any one of claims 1 to 5, characterized in that: It also includes a guide mechanism for guiding the steel bars, the guide mechanism includes a mounting seat, a guide seat, a guide block and a guide wheel. Three guide blocks are provided and are all mounted on the guide seat. The three guide blocks are arranged at an angle of 120° in pairs. The guide wheel is used for guiding and contacting the steel bars. The guide wheels and the guide blocks are arranged one by one, and the three guide wheels are respectively rotatably assembled on the same end of the three guide blocks. A guide channel for guiding the steel bars to be rolled is formed between the three guide wheels, and the guide channel coincides with the central axis of the rolling channel.

7. A rolling device for producing three-sided ribbed steel bars according to claim 6, characterized in that: The guide seat is slidably assembled on the mounting seat along the axial direction of the guide channel.

8. A rolling device for producing three-sided ribbed steel bars according to claim 6, characterized in that: The guide seat is provided with a through opening that penetrates the guide seat, and is also provided with guide grooves that correspond to and match the three guide blocks one by one. The guide grooves are connected to the through opening, and the guide blocks are positionally adjustable in the extending direction perpendicular to the corresponding guide grooves.

9. A rolling device for producing three-sided ribbed steel bars according to claim 8, characterized in that: The guide seat is provided with a through hole that penetrates the guide groove at a position corresponding to each guide groove, an adjusting nut is installed at the hole edge of the through hole located on the outside of the guide seat, an adjusting bolt is threadedly connected to the adjusting nut, and the end of the adjusting bolt is rotatably assembled with the corresponding guide block.

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