Feeding mechanism and steel bar straightening machine

Abstract

The utility model discloses a feeding mechanism and a steel bar straightening machine, which relates to the field of construction engineering machinery, solves the problem of derailment during the steel bar straightening and feeding process, and the technical solution thereof is as follows: a feeding mechanism, the feeding mechanism is used for the steel bar straightening machine, the steel bar straightening machine comprises a straightening mechanism, and a feeding port is arranged on the modulation mechanism; the feeding mechanism comprises an auxiliary feeding cylinder, the auxiliary feeding cylinder comprises a rotating cylinder and a cylinder shaft, the rotating cylinder is sleeved on the cylinder shaft, and the rotating cylinder can rotate on the cylinder shaft; it comprises two auxiliary feeding cylinders, a first auxiliary feeding cylinder and a second auxiliary feeding cylinder; the two auxiliary feeding cylinders are arranged vertically; there is a steel bar feeding seam between the two auxiliary feeding cylinders; the vertical center line of the feeding seam is aligned with the feeding port of the straightening mechanism. The risk of steel bar detaching from the traction mechanism during traction is reduced.

Description

Technical Field

[0001] The utility model relates to construction engineering processing equipment, more specifically, it relates to a feeding mechanism and a steel bar straightening machine. Background Art

[0002] Steel bars with a diameter of less than 14 mm are generally transported in coils. The steel bars need to be straightened during use. A steel bar straightening machine is a type of steel bar processing machinery used to straighten steel bars. The steel bar straightening machine includes a traction wheel, a straightening mechanism and a cutting mechanism. The traction wheel is used to feed the steel bars into the straightening mechanism, the straightening mechanism is used to straighten the steel bars, and the cutting mechanism is used to cut the steel bars as needed. Generally, traction wheels are provided before and after the adjustment mechanism. When using a straightening machine in the prior art, the steel bars are directly passed through the traction mechanism and fed into the straightening mechanism. Since the steel bars are bent before straightening, there is lateral stress, which makes the steel bars tend to move laterally on the traction wheel. In severe cases, it may cause the steel bars to detach from the traction wheel, resulting in an inability to feed, or even a safety accident. Utility Model Content

[0003] On the first aspect, the purpose of the utility model is to provide a feeding mechanism to achieve the purpose of auxiliary feeding and reduce the risk of steel bars escaping from the traction mechanism.

[0004] The above technical purpose of the utility model is achieved through the following technical solutions: a feeding mechanism, which is used for a steel bar straightening machine, and the steel bar straightening machine includes a straightening mechanism and a traction mechanism, and a feeding port is provided on the straightening mechanism; the traction mechanism is arranged between the straightening mechanism and the feeding mechanism; the feeding mechanism includes an auxiliary feeding cylinder, the auxiliary feeding cylinder includes a rotating cylinder and a cylinder shaft, the rotating cylinder is sleeved on the cylinder shaft, and the rotating cylinder can rotate on the cylinder shaft; it includes two auxiliary feeding cylinders, a first auxiliary feeding cylinder and a second auxiliary feeding cylinder; the two auxiliary feeding cylinders are vertically arranged; there is a steel bar feeding seam between the two auxiliary feeding cylinders; the vertical center line of the feeding seam is aligned with the feeding port of the straightening mechanism.

[0005] Through the above scheme, the steel bar feeding seam is aligned with the feeding port of the straightening mechanism, and the traction mechanism is between the steel bar feeding seam and the feeding port of the adjustment mechanism. The feeding seam and the steel bar feeding port can play the role of auxiliary support to prevent the steel bar from laterally deviating from the traction mechanism under the action of stress, thereby reducing the risk of the steel bar detaching from the traction mechanism.

[0006] Furthermore, the first auxiliary feeding cylinder and the second auxiliary feeding cylinder can be moved closer to or farther from each other to adjust the width of the steel bar feeding gap.

[0007] Through the above scheme, the width of the steel bar feeding slot can be adjusted to accommodate steel bars of different sizes.

[0008] Furthermore, the feeding mechanism also includes a feeding rack, which includes an upper beam and a lower beam; a lower beam groove is provided on the lower beam, and a lower screw rod is provided in the lower beam groove; an upper beam groove corresponding to the lower beam groove is provided on the upper beam, and an upper screw rod is provided in the upper beam groove; a first lower slider and a second lower slider are provided on the lower screw rod, and the first lower slider and the second lower slider are matched with the thread of the lower screw rod; the rotation directions of the threads on the first lower slider and the second lower slider are opposite; a first upper slider and a second upper slider are provided on the upper screw rod, and the first upper slider and the second upper slider are matched with the thread of the upper screw rod; the rotation directions of the threads of the first upper slider and the second upper slider are opposite; the barrel shaft of the first auxiliary feeding barrel is respectively connected to the first upper slider and the first lower slider; the barrel shaft of the second auxiliary feeding barrel is respectively connected to the second upper slider and the second lower slider.

[0009] In the above scheme, the thread directions of the first upper slider and the second upper slider are opposite, and the thread directions of the first lower slider and the second lower slider are opposite. When the upper and lower screw rods rotate, the first upper slider and the second upper slider will approach or move away from each other; similarly, the first lower slider and the second lower slider will also approach or move away from each other, thereby achieving the purpose of adjusting the width of the steel bar feed seam.

[0010] Furthermore, the rotating drum is connected to the drum shaft through the fifth bearing; a first limit platform is arranged below the drum shaft; the inner ring of the fifth bearing is sleeved on the drum shaft, and the first limit platform can support the inner ring of the fifth bearing; a first bearing cavity is arranged below the rotating drum; a second limit platform is arranged in the first bearing cavity; the fifth bearing is arranged in the first bearing cavity, and the outer ring of the fifth bearing is connected to the drum shaft; the outer ring of the fifth bearing supports the second limit platform.

[0011] Optionally, a first limit platform is provided below the cylinder shaft, and the fifth bearing is a plane bearing; the fifth bearing is sleeved on the cylinder shaft; the lower part of the fifth bearing abuts against the first limit platform; and the upper part abuts against the rotating cylinder.

[0012] Furthermore, a second bearing cavity is arranged above the rotating drum, and a sixth bearing is arranged in the second bearing cavity; and an outer ring of the sixth bearing is connected to the rotating drum.

[0013] Furthermore, an upper crank is provided on the upper screw rod, and a lower crank is provided on the lower screw rod. The upper and lower screw rods can be conveniently rotated by the crank.

[0014] In a second aspect, the present invention provides a steel bar straightening machine comprising any one of the aforementioned feeding mechanisms; the straightening machine also includes a traction mechanism and a straightening mechanism; the traction mechanism is arranged upstream of the straightening mechanism; and the feeding mechanism is arranged upstream of the traction mechanism.

[0015] To sum up, the utility model has the following beneficial effects: the steel bar feed seam is aligned with the feed port of the straightening mechanism, the traction mechanism is between the steel bar feed seam and the feed port of the adjustment mechanism, the feed seam and the steel bar feed port can play the role of auxiliary support, preventing the steel bar from laterally deviating from the traction mechanism under the action of stress, and reducing the risk of the steel bar detaching from the traction mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of a straightening machine in an embodiment

[0017] Figure 2 This is an exploded view of the feeding mechanism of the embodiment

[0018] Figure 3 and Figure 4 They are the two auxiliary feed cylinders mentioned in the embodiment

[0019] Figure 5 Exploded view of the traction mechanism of the embodiment

[0020] Figure 6 Schematic diagram of the connection relationship between the driving device, the tensioning assembly and the driving assembly of the embodiment

[0021] Figure 7 This is an exploded view of the drive assembly of the embodiment

[0022] Figure 8 and Fig. 9 Schematic diagrams of the two tensioning components mentioned in the embodiments

[0023] Fig.10 Schematic diagram of the second spline shaft and the second spline sleeve

[0024] In the figure: 1, feeding mechanism; 11, upper beam; 12, lower beam; 121, lower beam groove; 13, lower screw rod; 131, first lower slider; 132, second lower slider; 14, upper screw rod; 141, first upper slider; 142, second upper slider; 15, first auxiliary feeding cylinder; 16, second auxiliary feeding cylinder; 17, rotating cylinder; 171, first bearing cavity; 18, cylinder shaft; 181, first limit table; 182, fifth bearing; 183, second bearing cavity; 2, first traction mechanism; 21, upper traction seat; 211, groove; 212, fixing groove; 213, first screw; 22, lower traction seat; 221, convex rail; 23, first column; 24, second column; 241, vertical groove; 25, first slider; 26, second slider; 261, vertical groove; 27, clamping wheel; 28, Traction wheel; 281, traction shaft; 29, cross beam; 291, pressure plate; 292, adjustment rod; 293, spring; 3, driving mechanism; 31, first spline shaft; 32, driving seat; 321, first support; 322, second support; 323, rotating wheel; 323, first spline sleeve; 4, tensioning mechanism; 41, tensioning wheel; 42, adjustment component; 421, adjustment frame; 422, adjustment groove; 423, adjustment shaft; 424, fixing nut; 425, adjustment column; 426, adjustment screw rod; 427, adjustment slide block; 5, driving device; 51, reducer; 511, first output shaft; 512, second output shaft; 52, transmission belt; 531, second spline sleeve; 532, second spline shaft; 6, modulation mechanism; 7, second traction mechanism; 8, cabinet; 9, shearing mechanism. DETAILED DESCRIPTION

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0026] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or indirectly on the other component. When a component is referred to as being "connected to" another component, it can be directly or indirectly connected to the other component. The "connection" is not limited to fixed connection or movable connection. The specific connection method should be determined based on the specific technical problem to be solved.

[0027] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0029] Example:

[0030] A steel bar straightening machine, comprising a cabinet 8, the top of the cabinet 8 being a workbench. The workbench is provided with a feeding mechanism 1, a traction mechanism, a straightening mechanism and a shearing mechanism 9. The feeding mechanism 1 is used to assist the feeding of steel bars, the traction mechanism is used to feed the steel bars, the straightening mechanism comprises a feeding port, the modulation mechanism 6 is used to straighten the steel bars, and the shearing mechanism 9 is used to cut the steel bars. The straightening mechanism, the shearing mechanism 9, and the positional relationship between the straightening mechanism, the traction mechanism and the shearing mechanism 9 belong to conventional technical solutions in the art, and will not be described in detail here.

[0031] In this embodiment, the feeding mechanism 1 includes an auxiliary feeding cylinder, which includes a rotating cylinder 17 and a cylinder shaft 18. The rotating cylinder 17 is sleeved on the cylinder shaft 18, and the rotating cylinder 17 can rotate on the cylinder shaft; it includes two auxiliary feeding cylinders, a first auxiliary feeding cylinder 15 and a second auxiliary feeding cylinder 16; the two auxiliary feeding cylinders are vertically arranged; there is a steel bar feeding gap between the two auxiliary feeding cylinders; the width of the feeding gap is adjusted by adjusting the positions of the two auxiliary feeding cylinders. The center line of the feeding gap is aligned with the feeding port of the straightening mechanism. Through the first auxiliary feeding cylinder 15 and the second auxiliary feeding cylinder 16, the stress of the steel bar in the left and right directions can be offset, and the probability of the steel bar escaping from the traction wheel 28 can be reduced.

[0032] In this embodiment, the feeding mechanism 1 further includes a feeding frame, which includes an upper beam 11 and a lower beam 12; a lower beam groove 121 is provided on the lower beam 12, and a lower screw rod 13 is provided in the lower beam groove 121; an upper beam 11 groove corresponding to the lower beam groove 121 is provided on the upper beam 11, and an upper screw rod 14 is provided in the upper beam 11 groove. A first lower slider 131 and a second lower slider 132 are provided on the lower screw rod 13, and the first lower slider 131 and the second lower slider 132 are threadedly matched with the lower screw rod 13; the threads on the first lower slider 131 and the second lower slider 132 rotate in opposite directions. A first upper slider 141 and a second upper slider 142 are provided on the upper screw rod 14, and the first upper slider 141 and the second upper slider 142 are threadedly matched with the upper screw rod 14; the threads on the first upper slider 141 and the second upper slider 142 rotate in opposite directions. The barrel shaft 18 of the first auxiliary feed barrel 15 is respectively connected to the first upper slider 141 and the first lower slider 131; the barrel shaft 18 of the second auxiliary feed barrel 16 is respectively connected to the second upper slider 142 and the second lower slider 132. When the upper screw rod 14 and the lower screw rod 13 are rotated, the first auxiliary feed barrel 15 and the second auxiliary feed barrel 16 are moved closer to or farther away from each other, which can adapt to the feeding of steel bars of different sizes. Preferably, an upper crank is provided on the upper screw rod 14, and a lower crank is provided on the lower screw rod 13. Through the above scheme, while adapting to steel bars of different sizes, it can also ensure that the center line of the feed seam can be kept corresponding to the feed port of the straightening mechanism.

[0033] In this embodiment, the rotating drum 17 is connected to the cylinder shaft 18 through the fifth bearing 182. A first limiting platform 181 is provided below the cylinder shaft 18; the inner ring of the fifth bearing 182 is sleeved on the cylinder shaft 18, and the first limiting platform 181 can support the inner ring of the fifth bearing 182; a first bearing cavity 171 is provided below the rotating drum 17; a second limiting platform is provided in the first bearing cavity 171; the fifth bearing 182 is provided in the first bearing cavity 171, and the outer ring of the fifth bearing 182 is connected to the cylinder shaft 18; the outer ring of the fifth bearing 182 supports the second limiting platform.

[0034] In other possible embodiments, a first limit platform 181 is provided below the cylindrical shaft 18, and the fifth bearing 182 is a plane bearing; the fifth bearing 182 is sleeved on the cylindrical shaft 18; the lower part of the fifth bearing 182 abuts against the first limit platform 181; and the upper part abuts against the rotating drum 17.

[0035] In other possible embodiments, a second bearing cavity 183 is disposed above the rotating drum 17 , and a sixth bearing is disposed in the second bearing cavity 183 ; an outer ring of the sixth bearing is connected to the rotating drum 17 .

[0036] Through the above solution, the rotating drum 17 can rotate smoothly on the drum shaft 18, which is beneficial to the feeding of steel bars.

[0037] In this embodiment, the traction mechanism includes a traction frame, and a traction wheel 28 and a pressure wheel 27 arranged on the traction frame; at least two arc grooves are correspondingly arranged on the traction wheel 28 and the pressure wheel 27; the radius of the arc grooves is different, which is used to match steel bars of different diameters. The pressure wheel 27 is arranged above the traction wheel 28; the traction wheel 28 is driven to rotate by a driving assembly. When in use, the arc groove on the pressure wheel 27 and the arc groove on the traction wheel 28 clamp the steel bar, and the rotation of the traction wheel 28 drives the steel bar to be transported along the tangential direction.

[0038] In this embodiment, the traction mechanism further includes a traction seat, and the traction seat includes an upper traction seat 21 and a lower traction seat 22; the traction frame is arranged on the upper traction seat 21; the upper traction seat 21 and the lower traction seat 22 are slidably connected; and a fixing component is further included, and the fixing component can prevent the upper traction seat 21 and the lower traction seat 22 from sliding against each other. The sliding direction is perpendicular to the feeding direction of the steel bars. The upper traction seat and the lower traction seat can slide against each other, thereby driving the traction wheel 28 and the clamping wheel 27 on the traction frame to slide back and forth, and adjusting the positional relationship between the arc groove and the feed port of the straightening mechanism. When in use, the arc groove to be used can be aligned with the feed port, and after the steel bars come out of the traction wheel 28, they will not be subjected to oblique pulling force, which can reduce the risk of the steel bars escaping from the arc groove.

[0039] In this embodiment, the lower traction seat 22 is provided with a convex rail 221, and the upper traction seat 21 is provided with a groove 211 that matches the convex rail 221; the upper traction seat 21 is provided with a penetrating fixing groove 212; the lower traction seat 22 is provided with a fixing hole, and a thread is provided in the fixing hole; the fixing component includes a first screw 213; the first screw 213 passes through the fixing groove 212 and is connected to the fixing hole to fix the upper traction seat 21 and the lower traction seat 22. The cooperation between the convex rail 221 and the groove 211 can reduce the risk of the upper traction seat 21 and the lower traction seat 22 being separated, and can also prevent the upper traction seat 21 and the lower traction seat 22 from moving along the steel bar feeding direction. In other possible embodiments, the relationship between the convex rail 221 and the slide groove of the upper traction seat 21 and the lower traction seat 22 can be reversed, which belongs to the equivalent technical solution of this solution. In this embodiment, a gasket is further provided between the nut of the first screw 213 and the upper traction seat 21 , and the upper traction seat 21 and the lower traction seat 22 can be better fixed by the gasket.

[0040] In this embodiment, the traction frame includes a first column 23 and a second column 24 which are arranged opposite to each other, and vertical rails are arranged vertically on the first column 23 and the second column 24; a traction wheel 28 is arranged on the first slider 25, and a vertical groove 261241 which matches the vertical rail is arranged on the first slider 25; a clamping wheel 27 is arranged on the second slider 26, and a vertical groove 261241 which matches the vertical rail is also arranged on the second slider 26; the first slider 25 and the second slider 26 can slide up and down along the vertical rail. A clamping mechanism is also included, and the second slider 26 maintains a tendency to approach the first slider 25 through the clamping mechanism. The cooperation between the vertical rail and the vertical groove 261241 can easily replace the first slider 25 and the second slider 26; at the same time, the steel bar can be clamped by the clamping mechanism, the friction between the steel bar and the arc groove is increased, and the steel bar traction function is better realized.

[0041] In this embodiment, the clamping mechanism includes a crossbeam 29, a pressure plate 291, a spring 293 and an adjusting rod 292; the crossbeam 29 is arranged above the first column 23 and the second column 24, connecting the first column 23 and the second column 24; the pressure plate 291 is arranged between the crossbeam 29 and the second slider 26, and an opening matching the vertical rail is arranged on the pressure plate 291; the spring 293 is arranged between the second slider 26 and the pressure plate 291; the crossbeam 29 is provided with an adjustment hole with an internal thread, and the adjustment rod 292 is provided with an external thread matching the adjustment hole; the lower end of the adjustment rod 292 abuts against the pressure plate 291. By screwing the adjustment rod 292 to adjust the length of the adjustment rod 292 extending downward, the change in the position of the pressure plate 291 can control the deformation degree of the spring 293, and then adjust the strength of the clamping wheel 27 to clamp the steel bar, which can better adapt to steel bars of different sizes. On the other hand, there is no rigid contact between the steel bar and the pressing wheel 27 and the traction wheel 28, so as to prevent the protrusions on the steel bar from damaging the pressing wheel 27 and the traction wheel 28. A rod cap is provided on the top of the adjusting rod 292. When rotating the adjusting rod 292, holding the rod cap can make it easier to rotate the adjusting rod 292.

[0042] In this embodiment, a first bearing is disposed in the middle of the first slider 25, the first bearing is sleeved on the traction shaft 281, and the traction wheel 28 is disposed on the traction shaft 281; the traction shaft 281 is connected to the driving assembly, and the traction shaft 281 and the traction wheel 28 are driven to rotate by the driving assembly; the traction shaft 281 passes through the first slider 25. A second bearing is disposed in the middle of the second slider 26, and the second bearing is sleeved on the clamping shaft.

[0043] In this embodiment, the traction mechanism includes a first traction mechanism 2 and a second traction mechanism 7, wherein the first traction mechanism 2 is arranged upstream of the straightening mechanism, and the second traction mechanism 7 is arranged downstream of the straightening mechanism. A driving device 5 is also included, wherein the driving device 5 includes a motor and a reducer 51; the motor is connected to the reducer 51; the reducer 51 is a dual-output reducer 51; the motor output shaft is connected to the input shaft of the reducer 51; the reducer 51 includes a first output shaft 511 and a second output shaft 512; the first output shaft 511 is connected to the first traction mechanism 2 through a driving assembly, and the second output shaft 512 is connected to the second traction mechanism 7.

[0044] In this embodiment, the driving assembly includes a driving seat 32 and a first spline shaft 31; the driving seat 32 is arranged on a workbench. One end of the first spline shaft 31 is connected to the traction shaft 281 of the first traction mechanism 2; the other end is connected to the driving seat 32; a rotating wheel 323 is arranged on the driving seat 32; the rotating wheel 323 is connected to the first spline shaft 31 through the first spline sleeve 323; the rotating wheel 323 can drive the first spline shaft 31 to rotate. The driving seat 32 includes a first support 321 and a second support 322; the first support 321 and the second support 322 are provided with shaft holes opposite to each other; the shaft holes are both provided with a third bearing; the rotating wheel 323 is arranged between the first support 321 and the second support 322; the first spline shaft 31 passes through the first support 321, the rotating wheel 323 and the second support 322 in sequence. The rotating wheel 323 is between the first support 321 and the second support 322, and the position of the first spline shaft 31 can be kept fixed when it moves.

[0045] In this embodiment, a first output wheel is provided on the first output shaft 511; the first output wheel is connected to the rotating wheel 323 through a transmission mechanism, and the transmission mechanism includes a transmission belt 52 and a tensioning assembly; the tensioning assembly is provided between the first output shaft 511 and the rotating wheel 323; the tensioning assembly is used to tension the transmission belt 52. The transmission belt 52 is one of a belt, a gear belt, and a chain; correspondingly, the rotating wheel 323, the first output wheel is one of a pulley, a gear, and a sprocket.

[0046] The tensioning assembly includes a tensioning wheel 41 and an adjusting component 42. The transmission belt 52 passes around the first output wheel, the tensioning wheel 41 and the rotating wheel 323. The tensioning wheel 41 is arranged on the adjusting component 42. The position of the tensioning wheel 41 can be adjusted by the adjusting component 42 to make the transmission belt 52 in a tensioned or relaxed state. When replacing or repairing the transmission belt 52, the tensioning wheel 41 is adjusted to make the transmission belt 52 in a relaxed state, so that the transmission belt 52 can be easily removed. When in use or when the transmission belt 52 is extended due to aging, the transmission belt 52 can be kept in a tensioned state by adjusting the position of the tensioning wheel 41. Similarly, the tensioning wheel 41 is one of a pulley, a gear, and a sprocket according to the type of the transmission belt 52.

[0047] In this embodiment, the adjusting component 42 includes an adjusting frame 421 and an adjusting shaft 423, and an adjusting slot 422 is provided on the adjusting frame 421. A fourth bearing is provided on the adjusting shaft 423, and the tensioning wheel 41 is connected to the adjusting shaft 423 through the fourth bearing. A thread and two fixing nuts 424 are also provided on the adjusting shaft 423; the adjusting shaft 423 passes through the adjusting slot 422, and two fixing nuts 424 are located at both ends of the adjusting slot 422, and the adjusting shaft 423 is fixed to the adjusting frame 421 by the fixing nuts 424. Through this embodiment, after loosening the fixing nuts 424, the height of the adjusting shaft 423 and the tensioning wheel 41 on the adjusting slot 422 can be manually adjusted to achieve tensioning or loosening of the belt.

[0048] In other possible embodiments, the adjusting component 42 includes an adjusting column 425, an adjusting slot 422 is provided on the adjusting column 425, an adjusting screw rod 426 is provided in the adjusting slot 422, and an adjusting slider 427 is provided on the screw rod; one end of the adjusting shaft 423 is connected to the slider, and the other end is connected to the tension wheel 41 through a bearing. By rotating the adjusting screw rod 426, the adjusting slider 427 can be moved up and down.

[0049] In this embodiment, a second spline sleeve 531 is provided on the second output shaft 512, and a second spline shaft 532 is provided on the traction shaft 281 of the second traction mechanism 7; the second spline shaft 532 is inserted into the second spline sleeve 531; the second spline shaft 532 can slide in the second spline sleeve 531; the second spline sleeve 531 is arranged on the second output shaft 512. Through the above scheme, the second output shaft 512 can drive the second traction mechanism 7 to rotate, and ensure that after the second traction mechanism 7 is adjusted left and right, the second traction shaft 281 can obtain the power output by the second output shaft 512. In other possible embodiments, a second spline shaft 532 is provided on the second output shaft 512, and a second spline sleeve 531 is provided on the traction shaft 281 of the second traction mechanism 7; the second spline shaft 532 is inserted into the second spline sleeve 531; the second spline shaft 532 can slide in the second spline sleeve 531; the second spline sleeve 531, the second spline shaft 532 and the traction shaft 281 on the second traction mechanism 7 are arranged on a cylindrical shaft.

[0050] How to use: Determine which arc groove on the traction wheel 28 to use according to the size of the steel bar, adjust the position of the upper traction seat 21 so that the arc groove is aligned with the feed opening of the straightening mechanism; shake the crank of the feed mechanism 1 to make the size of the feed gap adapt to the steel bar. After completing the above operations, start the machine.

[0051] By adopting the above solution, the risk of steel bar derailment can be reduced.

[0052] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A feeding mechanism, the feeding mechanism is used for a steel bar straightening machine, the steel bar straightening machine comprises a straightening mechanism, and a feeding port is arranged on the modulation mechanism; wherein: The feeding mechanism comprises an auxiliary feeding cylinder, which comprises a rotating cylinder and a cylinder shaft, the rotating cylinder is sleeved on the cylinder shaft, and the rotating cylinder can rotate on the cylinder shaft; It comprises two auxiliary feeding cylinders, a first auxiliary feeding cylinder and a second auxiliary feeding cylinder; the two auxiliary feeding cylinders are arranged vertically; a steel bar feeding seam is formed between the two auxiliary feeding cylinders; and the vertical center line of the feeding seam is aligned with the feeding port of the straightening mechanism.

2. A feeding mechanism according to claim 1, characterized in that: The first auxiliary feeding cylinder and the second auxiliary feeding cylinder can be moved closer to or farther from each other to adjust the width of the steel bar feeding gap.

3. A feeding mechanism according to claim 2, characterized in that: The feeding mechanism also includes a feeding rack, which includes an upper beam and a lower beam; a lower beam groove is provided on the lower beam, and a lower screw rod is provided in the lower beam groove; an upper beam groove corresponding to the lower beam groove is provided on the upper beam, and an upper screw rod is provided in the upper beam groove; a first lower slider and a second lower slider are provided on the lower screw rod, and the first lower slider and the second lower slider are matched with the thread of the lower screw rod; the rotation directions of the threads on the first lower slider and the second lower slider are opposite; the upper screw rod is provided with a first upper slider and a second upper slider, and the first upper slider and the second upper slider are matched with the thread of the upper screw rod; the rotation directions of the threads of the first upper slider and the second upper slider are opposite; the barrel shaft of the first auxiliary feeding barrel is respectively connected to the first upper slider and the first lower slider; the barrel shaft of the second auxiliary feeding barrel is respectively connected to the second upper slider and the second lower slider.

4. A feeding mechanism according to claim 3, characterized in that: The rotating drum is connected to the drum shaft through the fifth bearing; a first limit platform is arranged below the drum shaft; the inner ring of the fifth bearing is sleeved on the drum shaft, and the first limit platform can support the inner ring of the fifth bearing; a first bearing cavity is arranged below the rotating drum; a second limit platform is arranged in the first bearing cavity; the fifth bearing is arranged in the first bearing cavity, and the outer ring of the fifth bearing is connected to the drum shaft; the outer ring of the fifth bearing supports the second limit platform.

5. A feeding mechanism according to claim 3, characterized in that: A first limiting platform is arranged below the shaft, and the fifth bearing is a plane bearing; the fifth bearing is sleeved on the cylinder shaft; the lower part of the fifth bearing abuts against the first limiting platform; and the upper part abuts against the rotating cylinder.

6. A feeding mechanism according to claim 3, characterized in that: A second bearing cavity is arranged above the rotating drum, and a sixth bearing is arranged in the second bearing cavity; the outer ring of the sixth bearing is connected to the rotating drum.

7. A feeding mechanism according to claim 3, characterized in that: An upper crank is arranged on the upper screw rod, and a lower crank is arranged on the lower screw rod.

8. A steel bar straightening machine, characterized by: It comprises the feeding mechanism as described in any one of claims 1 to 7; the steel bar straightening machine also comprises a traction mechanism and a straightening mechanism; the traction mechanism is arranged upstream of the straightening mechanism; the feeding mechanism is arranged upstream of the traction mechanism.

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