Construction engineering construction steel bar blanking device

Abstract

The invention relates to the technical field of steel bar blanking, in particular to a construction engineering construction steel bar blanking device which comprises a rack, a heating guide component, a rotatable shaping swing frame, a distance adjusting mechanism and a cutting blanking mechanism are sequentially installed on the rack in the steel bar feeding direction, and a reciprocating frame capable of reciprocating in the shaping swing frame is installed on the inner wall of the shaping swing frame. Two shape righting rollers are rotationally installed on the reciprocating frame, two straightening frames which are symmetrically arranged are connected to the distance adjusting mechanism in a transmission mode, the distance between the two straightening frames can be adjusted in a reciprocating mode, and a reciprocating stroke adjusting assembly is installed on the distance adjusting mechanism. The reinforcing steel bar shaping and bending device has the beneficial effects that 360-degree multi-direction shaping and bending of reinforcing steel bars are achieved through the rotatable shaping rotary frame, the shape righting roller moving in a reciprocating mode and matched with the differential shaft and other structures, in the rotating process of the shaping rotary frame, the eccentric wheel on the convex shaft drives the reciprocating frame and the shape righting roller to conduct multi-direction bending on the reinforcing steel bars, and internal stress generated after the reinforcing steel bars are unwound is fully released.

Description

[0001] The invention relates to the technical field of steel bar blanking, and in particular to a steel bar blanking device for construction engineering. Background Art

[0002] In the prior art, the patent document with publication number CN118616612B discloses a steel bar cutting device for construction engineering. The device adopts the pre-action principle, is provided with a continuous fixed-length cutting component, pre-sets the cutting length, uses a cut-off button as a cutting node, improves the automation level, realizes the continuity of fixed-length cutting of steel bars, and clamps both ends of the steel bars during cutting to ensure the stability of steel bar cutting. However, the device has the following technical problems when performing continuous fixed-length cutting of steel bars: 1. Insufficient stress release: The existing technology has major defects in the stress release link before cutting and unloading the steel bars. Most equipment can only achieve simple one-way or limited-angle bending operations, and cannot perform 360° multi-directional shaping and bending of the steel bars like the present invention. This results in the failure to fully release the internal stress of the steel bars after unwinding, and the residual stress will cause deformation of the steel bars during subsequent processing and use, affecting their bonding effect with concrete; 2. Single straightening method: Most existing straightening devices use straightening rollers in fixed positions, which can only straighten the steel bar from the local periphery and cannot achieve 360° circular straightening. This single straightening method causes the steel bar to have a straightening dead angle; 3. Straightening parameters are not adjustable: When facing steel bars with different outer diameters, the existing device is difficult to flexibly adjust the straightening roller spacing and straightening stroke; 4. Low overall processing efficiency: Due to the shortcomings of existing technologies in stress release and straightening functions, the steel bars need to be reprocessed multiple times, which increases processing time and cost; Based on this, the present invention provides a steel bar unloading device for construction engineering to solve the problems raised in the above background technology. Summary of the invention

[0003] In view of the technical problems existing in the prior art, the present invention provides a steel bar feeding device for construction engineering to solve the problems of insufficient stress release, single straightening method, unadjustable straightening parameters and low overall processing efficiency of the existing device.

[0004] The technical solution of the present invention to solve the above technical problems is as follows: a steel bar feeding device for construction engineering, comprising a frame, on which a heating guide component, a rotatable shaping rotating frame, a distance adjustment mechanism and a cutting and feeding mechanism are sequentially installed along the steel bar feeding direction, the inner wall of the shaping rotating frame is installed with a reciprocating frame that can reciprocate in the shaping rotating frame, two corrective rollers are rotatably installed on the reciprocating frame, two symmetrically arranged straightening frames with reciprocating adjustable spacing are transmission-connected on the distance adjustment mechanism, a reciprocating stroke adjustment component is installed on the distance adjustment mechanism, and the reciprocating stroke adjustment component is used to adjust the reciprocating stroke of the straightening frame, a transmission pressure ring is rotatably installed on the inner walls of the two straightening frames, and the transmission pressure ring is driven to rotate by the distance adjustment mechanism, and a group of straightening modules distributed in a circular array is installed between the two transmission pressure rings; The straightening module comprises a pressing frame, a connecting rod is hinged between the pressing frame and two transmission pressing rings, and a straightening roller is rotatably mounted on the inner wall of the pressing frame; The cutting and blanking mechanism is used for cutting and blanking steel bars to a fixed length.

[0005] The beneficial effects of the present invention are: 1. The present invention realizes 360° multi-directional shaping and bending of steel bars through a rotatable shaping rotating frame, a reciprocating shaping roller, and a differential shaft and other structures. During the rotation of the shaping rotating frame, the eccentric wheel on the convex shaft drives the reciprocating frame and the shaping roller to perform multi-directional bending of the steel bars, fully releasing the internal stress of the steel bars after unwinding, effectively avoiding residual stress from causing deformation of the steel bars during subsequent processing and use, significantly improving the bonding effect between the steel bars and concrete, and fundamentally ensuring the stability and safety of the building structure.

[0006] 2. The present invention is provided with a straightening roller which can revolve and rotate 360° in a circular motion, and can straighten the steel bar in all directions from its outer circumference. The distance adjusting mechanism can adjust the distance between the two straightening frames, thereby adjusting the distance between the straightening roller and the steel bar. The stroke adjusting component can flexibly adjust the reciprocating stroke of the straightening frame according to the outer diameter of the steel bar, thereby limiting the reciprocating displacement stroke and the maximum straightening distance of the straightening roller, so as to meet the straightening requirements of steel bars with different outer diameters, greatly improve the straightening efficiency and straightening strength, and solve the problems that the traditional straightening method is single, and mostly uses straightening rollers with fixed positions, which can only straighten from the local outer circumference of the steel bar, have straightening blind spots, and the straightening parameters cannot be adjusted.

[0007] 3. The present invention greatly improves the one-time processing rate of steel bars through efficient stress release and precise straightening, reduces the number of rework times, significantly shortens the processing time, and reduces manpower and material costs. The cutting and unloading mechanism can complete precise length cutting and construction unloading, further improving the accuracy and practicality of the overall processing and improving production efficiency.

[0008] 4. The heating guide component of the present invention preheats the steel bars. The temperature of the induction heating coil is between 200°C and 400°C, which can reduce the hardness of the steel bars and facilitate subsequent processing. The electric heating rods installed inside the corrective roller and the straightening roller have a heating temperature of 250°C to 400°C, which further softens the steel bars and makes stress release and straightening operations more efficient.

[0009] 5. The present invention optimizes the transmission structure. The cross-sections of the first square shaft, the second square shaft, the first square groove and the second square groove are all regular hexagons, which ensures stable power transmission, avoids relative rotation, and ensures accurate operation of all components. Friction patterns are set on the semi-conical transmission column and the driven bevel wheel, and the torsion spring is used to achieve stable reciprocating displacement of the straightening frame. These designs improve the reliability and stability of the transmission, ensure efficient and accurate operation of the device, and improve the overall performance.

[0010] Based on the above technical solution, the present invention can also be improved as follows.

[0011] Furthermore, the heating guide component includes a material guide pipe installed on the frame, the material guide pipe is sleeved with an induction heating coil, the temperature heating range of the induction heating coil is 200℃-400℃, and two guide frames are installed on the frame, and a group of first guide wheels for guiding steel bar feeding are rotatably installed on the two guide frames.

[0012] The beneficial effect of adopting the above scheme is: before use, the steel bars are passed through the guide pipe and the two sets of first guide wheels in turn. When the steel bars are in the guide pipe, the induction heating coil is energized to generate heat, and the steel bars are heated by heat transfer to reach a temperature that is conducive to subsequent processing. In the range of 200℃-400℃, this temperature can reduce the hardness of the steel bars and facilitate subsequent process operations. The two sets of first guide wheels, on the one hand, play a guiding role when feeding the steel bars, ensuring that the steel bars can move forward stably along the central axis of the device, avoiding the subsequent processing accuracy being affected by the feed deviation, and on the other hand, reduce the friction loss between the steel bars and other components, and extend the service life of the components. In the prior art, some feeding devices lack pre-heating treatment of the steel bars. When facing steel bars with a large degree of bending, subsequent shaping and straightening are difficult and the effect is not good. This scheme effectively solves this problem by heating the guide components and improves the processing adaptability of steel bars in different states.

[0013] Furthermore, the pitch adjustment mechanism includes a servo motor installed on the frame and a bidirectional screw rod rotatably connected to the frame, a torsion spring is fixedly arranged at the rotation connection between the bidirectional screw rod and the frame, the bidirectional screw rod is driven by the servo motor and reciprocates, a first square shaft driven by the servo motor is rotatably installed on the frame, a hollow shaft is rotatably installed on the inner wall of the straightening frame, a first square groove with openings at both ends fixedly opened inside the hollow shaft and slidably connected to the first square shaft, a transmission gear is installed on the hollow shaft, and a passive gear ring meshing with the transmission gear is fixedly installed on the transmission pressure ring.

[0014] The beneficial effect of adopting the above scheme is that when in use, the servo motor starts to drive the bidirectional screw to reciprocate. Due to the thread characteristics of the bidirectional screw, the two straightening frames will make reciprocating movements of approaching or moving away in opposite directions on the screw, thereby adjusting the distance between the two straightening frames. After the distance between the two straightening frames is changed, the distance between the straightening roller and the steel bar is adjusted. When cutting steel bars, the reciprocating stroke of the two straightening frames is adjusted by setting the stroke adjustment component according to the outer diameter of the steel bars. The reciprocating stroke of the straightening roller and the maximum straightening distance of the straightening roller are limited by adjusting the reciprocating stroke of the two straightening frames, thereby making the device suitable for the straightening requirements of steel bars with different outer diameters. At the same time, the servo motor also drives the first square shaft to rotate, and the first square shaft drives the hollow shaft to rotate through a sliding connection with the first square groove in the hollow shaft, thereby causing the transmission gear to rotate. Since the transmission gear is engaged with the passive gear ring, the transmission pressure ring rotates accordingly. After the transmission pressure ring rotates, the straightening roller realizes a 360° circular revolution and rotation during the straightening process. Through the 360° circular revolution and rotation of multiple straightening rollers, the steel bars are straightened 360° from their outer periphery, thereby reducing the straightening blind angle of the steel bars and improving the straightening efficiency and straightening strength of the steel bars.

[0015] Furthermore, the stroke adjustment assembly includes a second square shaft installed on the output shaft end of the servo motor, a tensioning frame slidably connected to the frame, and a linear transmission module installed on the frame, an adjustment seat is installed for transmission on the linear transmission module, a half-conical transmission column is rotatably installed on the adjustment seat, the axial position of the semi-conical transmission column is fixed with a second square groove slidably connected to the second square shaft, a tensioning spring limited by the frame is installed on the bottom surface of the tensioning frame, a tensioning shaft is rotatably installed on the tensioning frame, a driven bevel wheel fitted with the semi-conical transmission column is installed at the tail end of the tensioning shaft, an elastic transmission belt is connected for transmission on the tensioning shaft, and the elastic transmission belt is respectively connected for transmission to the bidirectional screw rod and the first square shaft.

[0016] The beneficial effects of the above scheme are as follows: before the servo motor is turned on, the position of the adjustment seat is adjusted according to the outer diameter of the steel bar to be cut by driving the linear transmission module, and the position of the semi-conical transmission column relative to the driven bevel wheel and the transmission stroke of the semi-conical transmission column to the driven bevel wheel are adjusted; By limiting and adjusting the transmission stroke, the straightening roller can be adapted to the straightening requirements of steel bars with different outer diameters; When the servo motor is running, the second square shaft at the output shaft end rotates accordingly, thereby driving the tensioning shaft to rotate. The tensioning shaft is respectively connected to the bidirectional screw rod and the first square shaft through an elastic transmission belt to adjust the transmission ratio of the bidirectional screw rod and the first square shaft, thereby adjusting the reciprocating stroke of the straightening frame. The elastic transmission belt is made of elastic rubber, so that during the change of the transmission stroke of the semi-conical transmission column to the driven bevel wheel, the elastic transmission belt can continuously drive the bidirectional screw rod and the first square shaft; When the position of the semi-conical transmission column changes, the position of the tensioning frame on the frame changes accordingly; This solution uses a stroke adjustment component to flexibly adjust the stroke of the straightening frame according to the outer diameter of the steel bars, thereby improving the straightening effect and the versatility of the device.

[0017] Furthermore, a transmission cone surface and a transmission notch are fixedly provided on the semi-conical transmission column, the central angles of the transmission cone surface and the transmission notch are both 180°, and friction patterns are provided on the transmission cone surface and the driven bevel wheel.

[0018] The beneficial effect of adopting the above further scheme is that when in use, the transmission cone surface with a central angle of 180° on the semi-conical transmission column fits with the driven bevel wheel. When the position of the semi-conical transmission column changes, the contact position between the transmission cone surface and the driven bevel wheel changes. Since friction patterns are provided on both the transmission cone surface and the driven bevel wheel, the friction between the two is increased, ensuring transmission stability. The driven bevel wheel can more accurately follow the rotation of the semi-conical transmission column, thereby realizing precise control of the rotation of the tensioning shaft.

[0019] When the transmission cone surface is out of contact with the driven bevel wheel, the bidirectional lead screw automatically resets and rotates under the action of the torsion spring, thereby realizing the reciprocating movement of the straightening frame; Furthermore, the cross-sections of the first square axis, the second square axis, the first square groove and the second square groove are all regular hexagons.

[0020] The beneficial effect of adopting the above scheme is that when in use, the first square shaft with a regular hexagonal cross-section cooperates with the first square groove, and the second square shaft cooperates with the second square groove, which can ensure the stable transmission of power during the transmission process, and no relative rotation occurs, ensuring that the first square shaft can accurately drive the hollow shaft to rotate, and the second square shaft drives the semi-conical transmission column on the adjustment seat to rotate synchronously. In the prior art, if the shape of the shaft and the groove is unreasonable, power transmission interruption or delay is likely to occur, affecting the operating efficiency and straightening accuracy of the device. This scheme improves the reliability and stability of the transmission through this special shape design, thereby improving the overall performance of the device.

[0021] The axle up and down groove at two ends embeds respectively in two guide rails up and down of being made up of the groove on the attachment piece, and the tooth on the attachment piece is meshed with toothed rails with toothed rails.

[0022] The beneficial effects of the above scheme are as follows: when the servo motor drives the first square shaft to rotate, the first square shaft drives the upper coupling shaft to rotate through the toothed synchronous belt, the first bevel gear on the upper coupling shaft meshes with the first bevel gear on the lower coupling shaft to rotate the lower coupling shaft, and the transmission bevel gear at the bottom end of the lower coupling shaft is connected with the two driven bevel gear rings on the shaping rotating frame to drive the shaping rotating frame to rotate; At the same time, the active bevel gear ring is connected with the transmission component on the cam shaft to drive the cam shaft to rotate, and the eccentric wheel on the cam shaft is connected with the vibration transmission wheel on the reciprocating frame to make the reciprocating frame reciprocate in the shaping rotating frame. In the prior art, the driving structure of the shaping rotating frame and the reciprocating frame is complex and the transmission efficiency is low. This solution simplifies the power transmission path and improves the transmission efficiency through the transmission structure, so that the rotation of the shaping rotating frame and the movement of the reciprocating frame can be coordinated. In this process, the reciprocating shaping rollers in the shaping rotary frame play a key role. They can bend the steel bars in multiple directions and release the stress when the steel bars are released from the steel bar unwinding device, so as to better shape the steel bars in the future, improve the shaping quality of the steel bars, and lay a good foundation for subsequent straightening and other processes.

[0023] Furthermore, a differential shaft is rotatably mounted on the shaping rotating frame, a passive bevel gear is installed at the bottom of the differential shaft and is transmission-connected to the active bevel gear ring, a second bevel gear is installed on both the differential shaft and the cam shaft, the two second bevel gears are meshed with each other, and the two driven bevel gear rings are respectively arranged on both sides of the transmission bevel gear.

[0024] The beneficial effect of adopting the above further solution is that when the active bevel gear ring rotates, the passive bevel gear at the bottom of the differential shaft is driven to rotate the differential shaft, and the differential shaft and the second bevel gear on the cam shaft are meshed with each other to achieve differential transmission between the two. Since the two driven bevel gear rings are respectively arranged on both sides of the transmission bevel gear, the shaping rotating frame can achieve more flexible speed adjustment and motion control during the rotation process. The shaping rotating frame can be rotated to achieve 360° multi-directional shaping and bending of the steel bar, so that the stress released by the steel bar can be fully released in multiple directions; Furthermore, the cutting and unloading mechanism includes a cutting frame and a tool holder, a group of second guide wheels for guiding the steel bar limit position are installed on the cutting frame, a group of cutting push rods are installed between the cutting frame and the tool holder, a cutting knife is installed on the bottom surface of the tool holder, and a limit frame for limiting the steel bar position is installed on the cutting frame and at a position corresponding to the position directly below the cutting knife, and a knife groove adapted to the cutting knife is fixedly opened on the limit frame.

[0025] The beneficial effect of adopting the above scheme is as follows: after the steel bar has passed the previous processing steps, it enters the cutting frame, and the second guide wheel on the cutting frame limits and guides the steel bar to ensure that the steel bar is in the correct cutting position. The cutting push rod is started to push the knife frame to move downward, and the cutting knife on the bottom of the knife frame drops accordingly to cut the steel bar. The limit frame limits the steel bar during cutting to prevent the steel bar from shaking. The knife groove is adapted to the cutting knife to make the cutting more accurate.

[0026] In the prior art, the cutting and unloading device often has problems such as large cutting position deviation and uneven steel bar cut end surface. The present solution realizes the precise length cutting of steel bars and the construction unloading after the fixed-length steel bars are cut through the cutting and unloading mechanism.

[0027] Furthermore, each of the correcting rollers and each of the straightening rollers is internally installed with an electric heating rod, the heating temperature range of the electric heating rod is 250° C.-400° C., and the correcting rollers and the straightening rollers are both made of chrome twelve.

[0028] The beneficial effect of adopting the above scheme is that when in use, the electric heating rods inside the correcting roller and the straightening roller are energized to generate heat, so that the roller body temperature rises and is maintained at 250°C - 550°C. This temperature range further softens the steel bars. For the correcting roller, when the steel bars are bent in multiple directions to release stress, the softened steel bars are more likely to deform, and the stress release operation can be completed more efficiently; for the straightening roller, the softened steel bars are easier to straighten, which is beneficial for the roller body to perform shaping and straightening operations on the steel bars.

[0029] The roller body made of chromium-12 material has high hardness and wear resistance, is not easy to deform and wear in a high-temperature working environment, and extends the service life of the roller body. In the prior art, some roller bodies do not have a heating function, and the material is not resistant to high temperatures, resulting in poor steel bar processing effects and frequent roller replacement. Through this setting, this solution significantly improves the steel bar processing effect and reduces equipment maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the overall structure of a steel bar feeding device for construction engineering of the present invention; Figure 2 For the present invention Figure 1 A schematic diagram of the front view structure of Figure 3 It is a schematic diagram of the structure of the tool holder and the limit frame of the present invention; Figure 4 It is a schematic structural diagram of the first guide wheel and the guide frame of the present invention; Figure 5 It is a structural schematic diagram of the linear transmission module and the straightening frame of the present invention; Figure 6 For the present invention Figure 5 A schematic diagram of the local enlarged structure at point A in the middle; Figure 7 It is a structural schematic diagram of the upper coupling shaft and the shaping rotating frame of the present invention; Figure 8 For the present invention Figure 7 A schematic diagram of the local enlarged structure at B in the middle; Fig. 9 It is a structural schematic diagram of the upper coupling shaft and the passive gear ring of the present invention; Fig.10 For the present invention Fig. 9 A schematic diagram of the local enlarged structure at C in the middle; Fig.11 It is a schematic structural diagram of the torsion spring and the tensioning frame of the present invention.

[0031] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Frame; 2. Shaping rotating frame; 3. Reciprocating frame; 4. Correction roller; 5. Straightening frame; 6. Transmission pressure ring; 7. Pressure frame; 8. Connecting rod; 9. Straightening roller; 10. Rebar; 11. Material guide tube; 12. Induction heating coil; 13. Guide frame; 14. First guide wheel; 15. Servo motor; 16. Bidirectional screw rod; 17. Torsion spring; 18. Hollow shaft; 19. First square shaft; 20. Transmission gear; 21. Passive gear ring; 22. Second square shaft; 23. Tensioning frame; 24. Linear transmission module; 25. Adjustment seat; 26. Semi-conical transmission column; 27. Tensioning spring; 28. Tensioning shaft; 29. ​​Driven bevel wheel; 30. Elastic transmission belt; 31. Eccentric wheel; 32. Vibration wheel; 33. Reset spring; 34. Differential shaft; 35. Cutting frame; 36. Knife holder; 37. Second guide wheel; 38. Cutting push rod; 39. Cutting knife; 40. Limiting frame; 41. Lower coupling shaft; 42. Upper coupling shaft; 43. Active bevel gear ring; 44. Cam shaft. DETAILED DESCRIPTION

[0032] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0033] The present invention provides the following preferred embodiments like Figure 1-11 As shown, a steel bar feeding device for construction engineering includes a frame 1, on which a heating guide component, a rotatable shaping rotating frame 2, a distance adjustment mechanism and a cutting and feeding mechanism are sequentially installed along the feeding direction of the steel bar 10; The heating guide component includes a material guide pipe 11 installed on the frame 1, on which an induction heating coil 12 is sleeved, and the heating temperature of the induction heating coil 12 is 400°C. Two guide frames 13 are installed on the frame 1, and a group of first guide wheels 14 for feeding and guiding the steel bars 10 are rotatably installed on the two guide frames 13.

[0034] Before use, the steel bar 10 is passed through the guide tube 11 and the two sets of first guide wheels 14 in sequence. When the steel bar 10 is in the guide tube 11, the induction heating coil 12 is energized to generate heat, and the steel bar 10 is heated by heat transfer to reach a temperature that is conducive to subsequent processing. Within 400°C, this temperature can reduce the hardness of the steel bar 10 and facilitate subsequent process operations. The two sets of first guide wheels 14, on the one hand, play a guiding role when the steel bar 10 is fed, ensuring that the steel bar 10 can move forward stably along the central axis of the device to avoid the subsequent processing accuracy being affected by the feed deviation, and on the other hand, reduce the friction loss between the steel bar 10 and other components, and extend the service life of the components. In the prior art, some feeding devices lack pre-heating treatment of the steel bar 10. When facing steel bars 10 with a large degree of bending, subsequent shaping and straightening are difficult and the effect is not good. This solution effectively solves this problem by heating the guide components, thereby improving the processing adaptability of steel bars 10 in different states.

[0035] The inner wall of the shaping rotating frame 2 is installed with a reciprocating frame 3 that can reciprocate in the shaping rotating frame 2, and two corrective rollers 4 are rotatably installed on the reciprocating frame 3. Two symmetrically arranged straightening frames 5 with adjustable spacing are connected to the spacing mechanism in a transmission manner. The spacing mechanism is installed with a reciprocating stroke adjustment component, and the reciprocating stroke adjustment component is used to adjust the reciprocating stroke of the straightening frame 5. A transmission pressure ring 6 is rotatably installed on the inner walls of the two straightening frames 5. The transmission pressure ring 6 is driven to rotate by the spacing mechanism, and a group of straightening modules distributed in a circular array is installed between the two transmission pressure rings 6; The straightening module comprises a pressing frame 7, a connecting rod 8 is hinged between the pressing frame 7 and two transmission pressing rings 6, and a straightening roller 9 is rotatably mounted on the inner wall of the pressing frame 7; The cutting and blanking mechanism is used for cutting and blanking the steel bars 10 to a fixed length.

[0036] The pitch adjustment mechanism includes a servo motor 15 installed on the frame 1 and a bidirectional lead screw 16 rotatably connected to the frame 1. A torsion spring 17 is fixedly arranged at the rotation connection between the bidirectional lead screw 16 and the frame 1. The bidirectional lead screw 16 is driven by the servo motor 15 and reciprocates. A first square shaft 19 driven by the servo motor 15 is rotatably installed on the frame 1. A hollow shaft 18 is rotatably installed on the inner wall of a straightening frame 5. A first square groove with openings at both ends and slidably connected to the first square shaft 19 is fixedly opened inside the hollow shaft 18. A transmission gear 20 is installed on the hollow shaft 18, and a passive gear ring 21 meshing with the transmission gear 20 is fixedly installed on a transmission pressure ring 6.

[0037] When in use, the servo motor 15 is started to drive the bidirectional screw 16 to reciprocate. Due to the thread characteristics of the bidirectional screw 16, the two straightening frames 5 will make reciprocating movements in opposite directions on the screw, thereby adjusting the distance between the two straightening frames 5. After the distance between the two straightening frames 5 is changed, the distance between the straightening roller 9 and the steel bar 10 is adjusted. When the steel bar 10 is unloaded, the reciprocating stroke of the two straightening frames 5 is adjusted by setting the stroke adjustment component according to the outer diameter of the steel bar 10, and the reciprocating stroke of the straightening roller 9 and the maximum straightening distance of the straightening roller 9 are limited by adjusting the reciprocating stroke of the two straightening frames 5, so that the device is suitable for the straightening requirements of steel bars 10 with different outer diameters; At the same time, the servo motor 15 also drives the first square shaft 19 to rotate. The first square shaft 19 drives the hollow shaft 18 to rotate through a sliding connection with the first square groove in the hollow shaft 18, thereby rotating the transmission gear 20. Since the transmission gear 20 is engaged with the passive gear ring 21, the transmission pressure ring 6 rotates accordingly. After the transmission pressure ring 6 rotates, the straightening roller 9 realizes a 360° circular revolution and rotation during the straightening process. Through the 360° circular revolution and rotation of multiple straightening rollers 9, the steel bar 10 is straightened 360° from its outer periphery, thereby reducing the straightening blind angle of the steel bar 10 and improving the straightening efficiency and straightening strength of the steel bar 10.

[0038] The stroke adjustment assembly includes a second square shaft 22 installed on the output shaft end of the servo motor 15, a tensioning frame 23 slidably connected to the frame 1, and a linear transmission module 24 installed on the frame 1. An adjustment seat 25 is transmission-installed on the linear transmission module 24, and a semi-conical transmission column 26 is rotatably installed on the adjustment seat 25. The axial position of the semi-conical transmission column 26 is fixed with a second square groove slidably connected to the second square shaft 22. A tensioning spring 27 limited by the frame 1 is installed on the bottom surface of the tensioning frame 23. A tensioning shaft 28 is rotatably installed on the tensioning frame 23. A driven bevel wheel 29 that fits the semi-conical transmission column 26 is installed at the tail of the tensioning shaft 28. An elastic transmission belt 30 is transmission-connected to the tensioning shaft 28, and the elastic transmission belt 30 is transmission-connected to the bidirectional screw 16 and the first square shaft 19 respectively.

[0039] Before the servo motor 15 is turned on, the position of the adjustment seat 25 is adjusted according to the outer diameter of the steel bar 10 to be cut by driving the linear transmission module 24, and the position of the semi-conical transmission column 26 relative to the driven bevel wheel 29 and the transmission stroke of the semi-conical transmission column 26 to the driven bevel wheel 29 are adjusted; By limiting and adjusting the transmission stroke, the straightening roller 9 can be adapted to the straightening requirements of steel bars 10 with different outer diameters; When the servo motor 15 is running, the second square shaft 22 at the output shaft end rotates accordingly, thereby driving the tensioning shaft 28 to rotate. The tensioning shaft 28 is respectively connected to the bidirectional screw rod 16 and the first square shaft 19 through the elastic transmission belt 30, so as to adjust the transmission ratio of the bidirectional screw rod 16 and the first square shaft 19, thereby adjusting the reciprocating stroke of the straightening frame 5; The elastic transmission belt 30 is made of elastic rubber, so that during the change of the transmission stroke of the semi-conical transmission column 26 to the driven bevel wheel 29, the elastic transmission belt 30 can continuously drive the bidirectional screw rod 16 and the first square shaft 19; When the position of the semi-conical transmission column 26 changes, the position of the tensioning frame 23 on the frame 1 changes accordingly; This solution uses a stroke adjustment component to flexibly adjust the stroke of the straightening frame 5 according to the outer diameter of the steel bar 10, thereby improving the straightening effect and the versatility of the device.

[0040] A transmission cone surface and a transmission notch are fixedly provided on the semi-conical transmission column 26 , and the central angles of the transmission cone surface and the transmission notch are both 180°. The transmission cone surface and the driven bevel wheel 29 are both provided with friction patterns.

[0041] When in use, the transmission cone surface with a central angle of 180° on the semi-conical transmission column 26 fits with the driven bevel wheel 29. When the position of the semi-conical transmission column 26 changes, the contact position between the transmission cone surface and the driven bevel wheel 29 changes. Since friction patterns are provided on both the transmission cone surface and the driven bevel wheel 29, the friction force between the two is increased, ensuring transmission stability. The driven bevel wheel 29 can more accurately follow the rotation of the semi-conical transmission column 26, thereby realizing precise control of the rotation of the tensioning shaft 28.

[0042] When the transmission cone surface is out of contact with the driven bevel wheel 29, under the action of the torsion spring 17, the bidirectional screw rod 16 automatically resets and rotates, thereby realizing the reciprocating displacement of the straightening frame 5; The cross sections of the first square axis 19 , the second square axis 22 , the first square groove and the second square groove are all regular hexagons.

[0043] When in use, the first square shaft 19 with a regular hexagonal cross-section cooperates with the first square groove, and the second square shaft 22 cooperates with the second square groove, which can ensure the stable transmission of power during the transmission process without relative rotation, ensuring that the first square shaft 19 can accurately drive the hollow shaft 18 to rotate, and the second square shaft 22 drives the semi-conical transmission column 26 on the adjustment seat 25 to rotate synchronously. In the prior art, if the shape of the shaft and the groove is unreasonable, power transmission interruption or delay is likely to occur, affecting the operating efficiency and straightening accuracy of the device. This solution improves the reliability and stability of the transmission through this special shape design, thereby improving the overall performance of the device.

[0044] An upper coupling shaft 42 and a lower coupling shaft 41 are rotatably mounted on the frame 1, and the upper coupling shaft 42 is connected to the first square shaft 19 through a toothed synchronous belt. A first bevel gear is mounted on both the upper coupling shaft 42 and the lower coupling shaft 41, and the two first bevel gears are meshed with each other. The shaping rotating frame 2 is rotatably connected to the frame 1 through a bearing, and an active bevel gear ring 43 is rotatably mounted on the shaping rotating frame 2, and a driven bevel gear ring 43 and the shaping rotating frame 2 are both mounted with a driven bevel gear ring. The bottom end of the lower coupling shaft 41 is fixed A transmission bevel gear is fixedly installed, and the two driven bevel gear rings are both connected to the transmission bevel gear. A convex shaft 44 driven by an active bevel gear ring 43 is rotatably installed on the shaping rotary frame 2, and two eccentric wheels 31 are installed on the convex shaft 44. A vibration transmission wheel 32 is rotatably installed on the reciprocating frame 3 and corresponds to the position of the two eccentric wheels 31. The two vibration transmission wheels 32 are respectively adapted and connected to the two eccentric wheels 31, and a return spring 33 limited by the shaping rotary frame 2 is installed on the side of the reciprocating frame 3.

[0045] When the servo motor 15 drives the first square shaft 19 to rotate, the first square shaft 19 drives the upper coupling shaft 42 to rotate through the toothed synchronous belt, and the first bevel gear on the upper coupling shaft 42 meshes with the first bevel gear on the lower coupling shaft 41 to rotate the lower coupling shaft 41, and the transmission bevel gear at the bottom end of the lower coupling shaft 41 is connected to the two driven bevel gear rings on the shaping rotating frame 2, driving the shaping rotating frame 2 to rotate; At the same time, the active bevel gear ring 43 is connected with the transmission component on the convex shaft 44 to drive the convex shaft 44 to rotate, and the eccentric wheel 31 on the convex shaft 44 is adapted to be connected with the vibration transmission wheel 32 on the reciprocating frame 3, so that the reciprocating frame 3 reciprocates in the shaping rotating frame 2. In the prior art, the driving structure of the shaping rotating frame 2 and the reciprocating frame 3 is complex and the transmission efficiency is low. The present solution simplifies the power transmission path and improves the transmission efficiency through the transmission structure, so that the rotation of the shaping rotating frame 2 and the movement of the reciprocating frame 3 can be coordinated. In this process, the reciprocating shaping roller 4 in the shaping rotating frame 2 plays a key role. It can perform multi-directional bending on the steel bar 10 and release the stress of the steel bar 10 when it is released from the steel bar 10 unwinding device, so as to better shape the steel bar 10 in the future, improve the shaping quality of the steel bar 10, and lay a good foundation for subsequent straightening and other processes.

[0046] A differential shaft 34 is rotatably mounted on the shaping rotating frame 2, a passive bevel gear drivingly connected to the active bevel gear ring 43 is mounted at the bottom of the differential shaft 34, a second bevel gear is mounted on both the differential shaft 34 and the cam shaft 44, the two second bevel gears mesh with each other, and two driven bevel gear rings are respectively arranged on both sides of the driving bevel gear.

[0047] When the active bevel gear ring 43 rotates, it drives the passive bevel gear at the bottom of the differential shaft 34 to rotate the differential shaft 34, and the differential shaft 34 and the second bevel gear on the cam shaft 44 mesh with each other to achieve differential transmission therebetween. Since the two driven bevel gear rings are respectively arranged on both sides of the transmission bevel gear, the shaping rotating frame 2 can achieve more flexible speed adjustment and motion control during the rotation process. The shaping rotating frame 2 is rotated to achieve 360° multi-directional shaping and bending of the steel bar 10, so that the stress released by the steel bar 10 can be fully released in multiple directions; The cutting and unloading mechanism includes a cutting frame 35 and a knife frame 36. A group of second guide wheels 37 for limiting the position and guiding the steel bars 10 are installed on the cutting frame 35. A group of cutting push rods 38 are installed between the cutting frame 35 and the knife frame 36. A cutting knife 39 is installed on the bottom surface of the knife frame 36. A limiting frame 40 for limiting the position of the steel bars 10 is installed on the cutting frame 35 and at a position corresponding to the position directly below the cutting knife 39. A knife groove adapted to the cutting knife 39 is fixedly opened on the limiting frame 40.

[0048] After the previous processing steps, the steel bar 10 enters the cutting frame 35. The second guide wheel 37 on the cutting frame 35 limits and guides the steel bar 10 to ensure that the steel bar 10 is in the correct cutting position. The cutting push rod 38 is started to push the knife frame 36 to move downward, and the cutting knife 39 on the bottom of the knife frame 36 drops accordingly to cut the steel bar 10. The limit frame 40 limits the steel bar 10 during cutting to prevent the steel bar 10 from shaking. The knife groove is adapted to the cutting knife 39 to make the cutting more accurate.

[0049] In the prior art, the cutting and unloading device often has problems such as large cutting position deviation and uneven cut end surface of the steel bar 10. The present solution realizes the precise length cutting of the steel bar 10 and the construction unloading of the fixed-length steel bar 10 after cutting through the cutting and unloading mechanism.

[0050] Each of the correction rollers 4 and the straightening rollers 9 is internally installed with an electric heating rod, the heating temperature range of the electric heating rod is 400° C. The correction rollers 4 and the straightening rollers 9 are both made of chromium-12 material.

[0051] When in use, the electric heating rods inside the correcting roller 4 and the straightening roller 9 are energized to generate heat, so that the temperature of the roller body is increased and maintained at 400°C. This temperature range further softens the steel bar 10. For the correcting roller 4, when the steel bar 10 is bent in multiple directions to release stress, the softened steel bar 10 is more likely to deform, and the stress release operation can be completed more efficiently; for the straightening roller 9, the softened steel bar 10 is easier to straighten, which is beneficial for the roller body to perform shaping and straightening operations on the steel bar 10.

[0052] The roller body made of chromium-12 material has high hardness and wear resistance, is not easy to deform and wear in a high-temperature working environment, and extends the service life of the roller body. In the prior art, some roller bodies do not have a heating function, and the material is not resistant to high temperatures, resulting in poor processing effect on the steel bars 10 and frequent replacement of the roller body. Through this setting, this solution significantly improves the processing effect of the steel bars 10 and reduces the equipment maintenance cost.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A steel bar feeding device for construction engineering, comprising a frame (1), characterized in that: A heating guide component, a rotatable shaping rotating frame (2), a distance adjustment mechanism and a cutting and unloading mechanism are sequentially installed on the bracket along the feeding direction of the steel bar (10); a reciprocating frame (3) that can reciprocate in the shaping rotating frame (2) is installed on the inner wall of the shaping rotating frame (2); two shaping rollers (4) are rotatably installed on the reciprocating frame (3); two symmetrically arranged straightening frames (5) with adjustable spacing are transmission-connected on the distance adjustment mechanism; a reciprocating stroke adjustment component is installed on the distance adjustment mechanism; the reciprocating stroke adjustment component is used to adjust the reciprocating stroke of the straightening frames (5); a transmission pressure ring (6) is rotatably installed on the inner walls of the two straightening frames (5); the transmission pressure ring (6) is driven to rotate by the distance adjustment mechanism; a group of straightening modules distributed in a circumferential array is installed between the two transmission pressure rings (6); The straightening module comprises a pressure frame (7), a connecting rod (8) is hinged between the pressure frame (7) and two transmission pressure rings (6), and a straightening roller (9) is rotatably mounted on the inner wall of the pressure frame (7); The cutting and blanking mechanism is used for cutting and blanking steel bars (10) to a fixed length.

2. A construction engineering steel bar feeding device according to claim 1, characterized in that: The heating guide component comprises a material guide pipe (11) mounted on a frame (1), an induction heating coil (12) being sleeved on the material guide pipe (11), the temperature heating range of the induction heating coil (12) being 200° C.-400° C., two guide frames (13) being mounted on the frame (1), and a group of first guide wheels (14) for guiding the feeding of steel bars (10) being rotatably mounted on both guide frames (13).

3. A construction engineering steel bar feeding device according to claim 1, characterized in that: The pitch adjustment mechanism comprises a servo motor (15) mounted on a frame (1) and a bidirectional lead screw (16) rotatably connected to the frame (1); a torsion spring (17) is fixedly arranged at a rotatable connection between the bidirectional lead screw (16) and the frame (1); the bidirectional lead screw (16) is driven by the servo motor (15) and reciprocates; a first square shaft (19) driven by the servo motor (15) is rotatably mounted on the frame (1); a hollow shaft (18) is rotatably mounted on the inner wall of the straightening frame (5); a first square groove with openings at both ends and slidably connected to the first square shaft (19) is fixedly opened inside the hollow shaft (18); a transmission gear (20) is mounted on the hollow shaft (18); and a passive gear ring (21) meshing with the transmission gear (20) is fixedly mounted on the transmission pressure ring (6).

4. A construction engineering steel bar feeding device according to claim 3, characterized in that: The stroke adjustment assembly comprises a second square shaft (22) mounted on the output shaft end of the servo motor (15), a tensioning frame (23) slidably connected to the frame (1), and a linear transmission module (24) mounted on the frame (1); an adjustment seat (25) is rotatably mounted on the linear transmission module (24); a semi-conical transmission column (26) is rotatably mounted on the adjustment seat (25); and an axial position of the semi-conical transmission column (26) is fixedly provided with a slidably connected to the second square shaft (22). The second square groove is connected to the tensioning frame (23), the bottom surface of which is installed with a tensioning spring (27) limited by the frame (1), the tensioning frame (23) is rotatably installed with a tensioning shaft (28), the tail of which is installed with a driven inclined wheel (29) that fits with the semi-conical transmission column (26), the tensioning shaft (28) is transmission-connected with an elastic transmission belt (30), and the elastic transmission belt (30) is transmission-connected with the bidirectional screw rod (16) and the first square shaft (19) respectively.

5. A construction engineering steel bar feeding device according to claim 4, characterized in that: A transmission cone surface and a transmission notch are fixedly provided on the semi-conical transmission column (26), the central angles of the transmission cone surface and the transmission notch are both 180°, and friction patterns are provided on the transmission cone surface and the driven bevel wheel (29).

6. A construction engineering steel bar feeding device according to claim 4, characterized in that: The cross-sections of the first square axis (19), the second square axis (22), the first square groove and the second square groove are all regular hexagons.

7. A construction engineering steel bar feeding device according to claim 1, characterized in that: An upper coupling shaft (42) and a lower coupling shaft (41) are rotatably mounted on the frame (1); the upper coupling shaft (42) is transmission-connected to the first square shaft (19) via a toothed synchronous belt; a first bevel gear is mounted on each of the upper coupling shaft (42) and the lower coupling shaft (41); the two first bevel gears are meshed with each other; the shaping rotating frame (2) is rotatably connected to the frame (1) via a bearing; an active bevel gear ring (43) is rotatably mounted on the shaping rotating frame (2); a driven bevel gear ring (43) and the shaping rotating frame (2) are both mounted with a driven bevel gear ring; the lower coupling shaft (41) is A transmission bevel gear is fixedly mounted on the bottom end, and the two driven bevel gear rings are both in transmission connection with the transmission bevel gear. A convex shaft (44) driven by an active bevel gear ring (43) is rotatably mounted on the shaping rotating frame (2), and two eccentric wheels (31) are mounted on the convex shaft (44). A vibration transmission wheel (32) is rotatably mounted on the reciprocating frame (3) at positions corresponding to the two eccentric wheels (31), and the two vibration transmission wheels (32) are respectively matched and connected with the two eccentric wheels (31). A return spring (33) limited by the shaping rotating frame (2) is mounted on the side of the reciprocating frame (3).

8. A construction engineering steel bar feeding device according to claim 6, characterized in that: A differential shaft (34) is rotatably mounted on the shaping rotating frame (2); a passive bevel gear drivingly connected to a driving bevel gear ring (43) is mounted at the bottom of the differential shaft (34); a second bevel gear is mounted on both the differential shaft (34) and the cam shaft (44); the two second bevel gears are meshed with each other; and the two driven bevel gear rings are respectively arranged on both sides of the driving bevel gear.

9. A construction engineering steel bar feeding device according to claim 1, characterized in that: The cutting and unloading mechanism comprises a cutting frame (35) and a knife frame (36); a group of second guide wheels (37) for limiting the position and guiding the steel bar (10) are mounted on the cutting frame (35); a group of cutting push rods (38) are mounted between the cutting frame (35) and the knife frame (36); a cutting knife (39) is mounted on the bottom surface of the knife frame (36); a limiting frame (40) for limiting the position of the steel bar (10) is mounted on the cutting frame (35) and at a position corresponding to the position directly below the cutting knife (39); a knife groove adapted to the cutting knife (39) is fixedly opened on the limiting frame (40).

10. A construction engineering steel bar feeding device according to claim 1, characterized in that: Each of the corrective rollers (4) and each of the straightening rollers (9) is internally installed with an electric heating rod, the heating temperature range of the electric heating rod is 250° C.-400° C., and the corrective rollers (4) and the straightening rollers (9) are both made of chrome twelve.

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