Novel rotary straightening machine

Abstract

The utility model relates to a novel rotary straightening machine, and belongs to the technical field of steel bar production. Comprising a first-stage rotary straightening mechanism and a second-stage rotary straightening mechanism which are arranged in a mirror symmetry mode, the two ends of the first-stage rotary straightening mechanism and the two ends of the second-stage rotary straightening mechanism are installed on corresponding bearings respectively, the bearings are installed on a rack of the straightening machine, and the first-stage rotary straightening mechanism and the second-stage rotary straightening mechanism are opposite in rotation direction. The steel bar straightening device has the advantages that rotation of the steel bar is caused by the fact that the straightening wheels clamp the steel bar to rotate in one direction and apply torque to the steel bar, and in order to relieve rotation of the steel bar in the straightening process, the two rotary straightening devices are adopted to rotate in the opposite directions to achieve the effect that the two opposite torques counteract with each other.

Description

Technical Field

[0001] The utility model relates to a novel rotary straightening machine, belonging to the technical field of steel bar production. Background Art

[0002] With the increasing application of rebar straightening and cutting machines in the construction industry, while realizing the straightening and cutting functions, the requirements for the dimensional accuracy and work efficiency of the processed steel bars are also constantly increasing. The previous method of simple turntable straightening, and then manual shearing with wire cutters or cutting with a cutting machine will cause certain damage to the steel wire, reducing the durability of the wire itself. In addition, since there are many types of wires used on construction sites, the noise caused by knocking is noisy, causing great noise pollution. In addition, the labor intensity of workers is too high, manual counting is required, the production efficiency is too low, the length of the steel bar is difficult to control, the error is large, and it is time-consuming, labor-intensive and labor-intensive.

[0003] After searching, the patent number is a utility model of hydraulic cutting steel bar straightening machine, which discloses a hydraulic cutting steel bar straightening machine. A feed pre-straightening mechanism is arranged in front of the feed box, and a rotary straightening mechanism and a hydraulic cutting mechanism are installed between the feed box and the feeding box. The feed box and the feeding box are connected by a sprocket chain, the feeding box and the rotary straightening mechanism are connected to the motor respectively, and one end of the hydraulic cutting mechanism is connected to the electronic control system.

[0004] Although the above patent can realize the function of straightening steel bars, the current technical considerations are not comprehensive and have the following disadvantages: because the shape of the straightening wheel is arc-shaped, when in use, it is necessary to adjust the gap from the arc midpoint of the upper straightening wheel to the arc midpoint of the lower straightening wheel to a degree that is almost equal to the diameter of the steel bar. Because of the arc-shaped structure of the straightening wheel, in the gap formed by the upper straightening wheel and the lower straightening wheel, after the straightener rotates, the straightening wheel can reach any position of 360 degrees, and there is no gap at the place where it reaches, which is equivalent to having a gap only in the middle of the arc; when the steel bar is not straight, the steel bar cannot fall at the center position of the arc-shaped straightening wheel. After the straightening wheel rotates, it will press the steel bar to the middle position. When the steel bar is pressed to the middle position, the steel bar is straightened. That is, when the straightening wheel presses the steel bar to straighten it, the straightening wheel is in close contact with the steel bar; when the straightener rotates as a whole, although the whole bundle of disc-shaped steel bars behind it restricts the steel bar entering the straightener from completely moving freely, the straightener will still drive the steel bar to rotate a small amount. When the rotary straightener is used as a component of other equipment, this rotation will produce undesirable effects and affect the processing quality.

[0005] In order to solve one of the above problems, a new type of rotary straightening machine is urgently needed. Utility Model Content

[0006] In view of the above deficiencies in the prior art, the technical problem to be solved by the utility model is: how to reduce the influence of the rotary straightening machine on the steel bars to produce rotation, and for this purpose, a new rotary straightening machine is provided.

[0007] The novel rotary straightening machine described in the utility model is characterized by comprising a primary rotary straightening mechanism and a secondary rotary straightening mechanism which are arranged in a mirror-symmetrical manner, wherein both ends of the primary rotary straightening mechanism and the secondary rotary straightening mechanism are respectively mounted on corresponding bearings, which are in turn mounted on a frame of the straightening machine, and wherein the primary rotary straightening mechanism and the secondary rotary straightening mechanism have opposite rotation directions.

[0008] Preferably, the first power mechanism on the frame is connected to the first-level rotation and straightening mechanism through a first transmission assembly to drive the first-level rotation and straightening mechanism to perform forward self-rotation movement to achieve 360° straightening of the steel bars without dead angles; the second power mechanism on the frame is connected to the second-level rotation and straightening mechanism through a second transmission assembly to drive the second-level rotation and straightening mechanism to perform reverse self-rotation movement to achieve 360° straightening of the steel bars without dead angles.

[0009] Preferably, the first-level rotation straightening mechanism includes a rotatable frame M, and in the direction of entry along the steel bars, the front and rear surfaces of the rotatable frame M are provided with corresponding A ports and B ports, and at least one and evenly distributed straightening components E are provided on both sides of the inner cavity of the rotatable frame M, and the straightening components E include a first-level upper row straightening wheels 3 and a first-level lower row straightening wheels 4 that are relatively arranged and fixed to the rotatable frame M through straightening wheel brackets.

[0010] Preferably, the secondary rotation straightening mechanism includes a rotatable frame N, and in the direction of entry along the steel bars, the front and rear surfaces of the rotatable frame N are provided with C ports and D ports corresponding to each other, and at least one and evenly distributed straightening components F are provided on both sides of the inner cavity of the rotatable frame N, and the straightening components F include a secondary upper row straightening wheel 5 and a secondary lower row straightening wheel 6 that are relatively arranged and fixed to the rotatable frame N through straightening wheel brackets.

[0011] Preferably, the first-stage upper row straightening wheels and the second-stage upper row straightening wheels are arranged in mirror symmetry.

[0012] Preferably, the first-level upper row straightening wheels and the second-level upper row straightening wheels are each provided with 2-10 groups.

[0013] Preferably, the first-stage lower row straightening wheels and the second-stage lower row straightening wheels are arranged in mirror symmetry.

[0014] Preferably, the first-stage lower row straightening wheels and the second-stage lower row straightening wheels are each provided with 2-10 groups.

[0015] Preferably, the outer circumferences of the first-level upper straightening wheels, the first-level lower straightening wheels, the second-level upper straightening wheels and the second-level lower straightening wheels all include a straightening area in the middle for contacting the steel bars, and the straightening area is a circular arc surface with a concave middle portion.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] In the new rotary straightening machine described in the utility model, the rotation of the steel bar is caused by the straightening wheel clamping the steel bar and rotating in one direction to apply a torque to the steel bar. In order to alleviate the rotation of the steel bar during straightening, this patent adopts two rotary straighteners rotating in opposite directions to achieve the effect of two opposite torques offsetting each other, so as to achieve the effect of reducing the twisting of the steel bar.

[0018] The novel rotary straightening machine described in the utility model can straighten steel bars more efficiently and greatly reduce the side effects caused by the mechanical structure during straightening. When used as a component for other large equipment, the processing effect can be greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 This is a schematic diagram of the external structure of the primary rotation straightening mechanism of the utility model;

[0022] Figure 3 It is a schematic diagram of the external structure of the two-stage rotating straightening mechanism of the utility model;

[0023] In the figure: 1, first-level rotary straightening mechanism 2, second-level rotary straightening mechanism 3, first-level upper row straightening wheels 4, first-level lower row straightening wheels 5, second-level upper row straightening wheels 6, second-level lower row straightening wheels. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings:

[0025] The present invention is further described below through specific embodiments, but 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.

[0026] Embodiment 1, as Figure 1 As shown, the novel rotary straightening machine comprises a primary rotary straightening mechanism 1 and a secondary rotary straightening mechanism 2 which are arranged in a mirror-symmetrical manner. Both ends of the primary rotary straightening mechanism 1 and the secondary rotary straightening mechanism 2 are respectively mounted on corresponding bearings, which are mounted on the frame of the straightening machine. The primary rotary straightening mechanism 1 and the secondary rotary straightening mechanism 2 rotate in opposite directions.

[0027] Embodiment 2, as Figure 1 As shown, the novel rotary straightening machine comprises a primary rotary straightening mechanism 1 and a secondary rotary straightening mechanism 2 which are arranged in a mirror-symmetrical manner. Both ends of the primary rotary straightening mechanism 1 and the secondary rotary straightening mechanism 2 can be rotatably mounted on the frame of the straightening machine, and the primary rotary straightening mechanism 1 and the secondary rotary straightening mechanism 2 have opposite rotation directions.

[0028] Furthermore, the first power mechanism on the frame is connected to the first-level rotation and straightening mechanism 1 through a first transmission assembly to drive the first-level rotation and straightening mechanism 1 to perform forward self-rotation movement to achieve 360° straightening of the steel bars without dead angles; the second power mechanism on the frame is connected to the second-level rotation and straightening mechanism 2 through a second transmission assembly to drive the second-level rotation and straightening mechanism 2 to perform reverse self-rotation movement to achieve 360° straightening of the steel bars without dead angles.

[0029] Further, refer to Figure 2 The first-level rotation straightening mechanism 1 includes a rotatable frame M. In the direction of entry along the steel bars, the front and rear surfaces of the rotatable frame M are provided with corresponding A ports and B ports. At least one and evenly distributed straightening components E are provided on both sides of the inner cavity of the rotatable frame M. The straightening components E include a first-level upper row straightening wheel 3 and a first-level lower row straightening wheel 4 that are relatively arranged and fixed to the rotatable frame M through straightening wheel brackets.

[0030] Further, refer to Figure 3 The secondary rotation straightening mechanism 2 includes a rotatable frame N. In the direction of entry along the steel bars, the front and rear surfaces of the rotatable frame N are provided with corresponding C ports and D ports. At least one and evenly distributed straightening components F are provided on both sides of the inner cavity of the rotatable frame N. The straightening components F include a secondary upper row straightening wheel 5 and a secondary lower row straightening wheel 6 that are relatively arranged and fixed to the rotatable frame N through straightening wheel brackets.

[0031] Furthermore, the first-stage upper row straightening wheels 3 and the second-stage upper row straightening wheels 5 are arranged in a mirror-symmetrical manner.

[0032] Furthermore, the first-level upper row straightening wheels 3 and the second-level upper row straightening wheels 5 are each provided with 2-10 groups.

[0033] Furthermore, the first-stage lower row straightening wheels 4 and the second-stage lower row straightening wheels 6 are arranged in a mirror-symmetrical manner.

[0034] Furthermore, the first-stage lower row straightening wheels 4 and the second-stage lower row straightening wheels 6 are both provided with 2-10 groups.

[0035] Furthermore, the outer circumferences of the first-level upper straightening wheels 3, the first-level lower straightening wheels 4, the second-level upper straightening wheels 5, and the second-level lower straightening wheels 6 all include a straightening area in the middle for contacting the steel bars, and the straightening area is a circular arc surface that is concave in the middle.

[0036] Introduction to the working process and principle of the improved rotary straightening machine

[0037] The steel bar enters the primary rotary straightening mechanism 1 from port A, and the primary rotary straightening mechanism 1 rotates, driving the primary upper row straightening wheels 3 and the primary lower row straightening wheels 4 to rotate at the same time. The bent steel bar moves toward the center position of the primary upper row straightening wheels 3 and the primary lower row straightening wheels 4 under the rotation and extrusion of the primary upper row straightening wheels 3 and the primary lower row straightening wheels 4, and the curvature of the steel bar gradually decreases. At the same time, the steel bar moves to the right under the action of the primary upper row straightening wheels 3 and the primary lower row straightening wheels 4 and comes out from port B.

[0038] As the steel bar moves to the right, the steel bar enters the secondary rotary straightening mechanism 2 from the C port, and the secondary rotary straightener 2 rotates in the direction opposite to the rotation direction of the primary rotary straightening mechanism 1, while driving the secondary upper row straightening wheels 5 and the secondary lower row straightening wheels 6 to rotate. The bent steel bar moves closer to the center position of the secondary upper row straightening wheels 5 and the secondary lower row straightening wheels 6 under the rotation and extrusion of the secondary upper row straightening wheels 5 and the secondary lower row straightening wheels 6, and the bending degree of the steel bar is further reduced. Because the primary upper row straightening wheels 3 and the secondary upper row straightening wheels 5 are mirror-distributed, and the primary lower row straightening wheels 4 and the secondary lower row straightening wheels 6 are mirror-distributed, although the secondary rotary straightening mechanism 2 and the primary rotary straightening mechanism 1 have opposite directions and the same rotation speed, the steel bar can still move to the right under the action of the secondary upper row straightening wheels 5 and 6, and finally come out from the D port.

[0039] Because the directions of the primary rotation straightening mechanism 1 and the secondary rotation straightening mechanism 2 are opposite, the radial torques applied to the steel bars by the primary rotation straightening mechanism 1 and the secondary rotation straightening mechanism 2 are also opposite, so the two torques cancel each other out, thereby achieving the effect of greatly reducing the torque applied to the steel bars by the primary rotation straightening mechanism 1 and the secondary rotation straightening mechanism 2 as a whole, and the rotation amount of the steel bars becomes smaller.

[0040] In short, the rotation of the steel bar is caused by the straightening wheel clamping the steel bar and rotating in one direction, which applies a torque to the steel bar. In order to alleviate the rotation of the steel bar during straightening, this patent uses two rotating straighteners rotating in opposite directions to achieve the effect of two opposite torques offsetting each other. However, this is not simply adding a straightener, but a process of coordinating the two straighteners: the distribution of the straightening wheels of the two straighteners must be mirrored. The reason for this is:

[0041] 1. When the traditional rotary straightener rotates clockwise, the steel bar will move forward while being straightened, and when it rotates counterclockwise, the steel bar will move backward (because this is the working condition of the existing rotary straightener, it will not be introduced in detail here).

[0042] 2. When the two straighteners rotate in opposite directions, if the distribution of the straightening wheels of the two straighteners is not mirrored, the directions of the two straighteners moving the steel bars will be opposite, and the steel bars cannot move forward, and finally the steel bars will be stuck in the straighteners and cannot come out. If the distribution of the straightening wheels of the two straighteners is mirrored, the directions of the two straighteners moving the steel bars will be the same.

[0043] The design of this patent achieves the purpose of reducing the torque provided by the rotary straightening machine to the steel bars, thereby improving the steel bar straightening effect. In this way, the "improved rotary straightener" when used as a component on the whole machine can achieve better results when used in conjunction with the wheels on the whole machine that increase friction to alleviate the rotation of the steel bars.

[0044] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the present utility model is defined by the attached claims and their equivalents.

[0045] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. A new type of rotary straightening machine, characterized in that: The invention comprises a primary rotation straightening mechanism (1) and a secondary rotation straightening mechanism (2) which are arranged in a mirror-symmetrical manner, wherein two ends of the primary rotation straightening mechanism (1) and the secondary rotation straightening mechanism (2) are respectively mounted on corresponding bearings, and the bearings are mounted on a frame of the straightening machine, and the primary rotation straightening mechanism (1) and the secondary rotation straightening mechanism (2) rotate in opposite directions.

2. The novel rotary straightening machine according to claim 1 is characterized in that: The first-level rotation straightening mechanism comprises a rotatable frame M. In the direction of entry of the steel bar, the front and rear surfaces of the rotatable frame M are provided with A ports and B ports corresponding to each other. At least one straightening assembly E is evenly distributed on both sides of the inner cavity of the rotatable frame M. The straightening assembly E comprises a first-level upper row straightening wheel (3) and a first-level lower row straightening wheel (4) which are relatively arranged and fixed to the rotatable frame M through a straightening wheel bracket.

3. The new rotary straightening machine according to claim 2 is characterized in that: The secondary rotation straightening mechanism comprises a rotatable frame N. In the direction of entry of the steel bar, the front and rear surfaces of the rotatable frame N are provided with C openings and D openings corresponding to each other. At least one straightening assembly F is evenly distributed on both sides of the inner cavity of the rotatable frame N. The straightening assembly F comprises a secondary upper row straightening wheel (5) and a secondary lower row straightening wheel (6) which are arranged opposite to each other and fixed to the rotatable frame N through a straightening wheel bracket.

4. The novel rotary straightening machine according to claim 3 is characterized in that: The first-stage upper row straightening wheels (3) and the second-stage upper row straightening wheels (5) are arranged in a mirror-symmetrical manner.

5. The novel rotary straightening machine according to claim 4 is characterized in that: The first-stage lower row straightening wheels (4) and the second-stage lower row straightening wheels (6) are arranged in a mirror-symmetrical manner.

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