Reinforcing steel bar straightening machine

Abstract

The utility model relates to a steel bar straightening machine which comprises a shell, openings are formed in the front end and the rear end of the shell, a straightening assembly is arranged in the shell, and the front end and the rear end of the straightening assembly are symmetrically connected with rotating rings respectively. A motor is arranged at the front end of the shell and is in transmission connection with the rotating ring located on the front side. The straightening assembly comprises three straightening rollers consistent in specification, the reinforcing steel bar is clamped between the three straightening rollers, the circumferential faces of the three straightening rollers are tightly attached to the circumferential face of the reinforcing steel bar respectively, the central axis of the reinforcing steel bar coincides with the central axis of the rotating rings, and the centers of the front ends and the rear ends of the three straightening rollers are connected with the adjacent rotating rings respectively. During implementation, a reinforcing steel bar enters from the opening in the front end of the shell, is clamped among the three straightening rollers to be straightened after passing through the rotating ring, and then exits from the opening in the rear end of the shell. The motor drives the rotating ring to rotate, the rotating ring drives the straightening rollers to rotate, and due to the fact that the circumferential faces of the three straightening rollers are tightly attached to the circumferential face of the reinforcing steel bar, rotating straightening of the reinforcing steel bar is completed.

Description

Technical Field

[0001] This utility model relates to the field of metal wire processing or treatment, specifically a steel bar straightening machine. Background Technology

[0002] As one of the most important building materials, the quality of steel reinforcement directly affects the quality of a building. In actual construction, steel reinforcement is directly rolled up and transported to the construction site, where it is then tied to the steel frame during the pouring process.

[0003] Therefore, steel bars need to be straightened before use. Existing straightening machines generally consist of two or more extrusion rollers. The steel bars pass through the extrusion rollers to achieve straightening. For example, the multi-face straightening steel bar straightening machine with patent number CN111872277A uses multiple rollers to straighten the steel bars. However, each set of rollers can only straighten two sides of the steel bars, and cannot achieve all-round straightening of the steel bars. Utility Model Content

[0004] In view of the above-mentioned technical problems in related technologies, this utility model proposes a steel bar straightening machine that can overcome the above-mentioned shortcomings of the existing technology.

[0005] To achieve the above-mentioned technical objectives, the technical solution of this utility model is implemented as follows:

[0006] A rebar straightening machine includes a housing with openings at both the front and rear ends. A straightening assembly is provided inside the housing, and a rotating ring is symmetrically connected to both the front and rear ends of the straightening assembly. A motor is provided at the front end of the housing, and the motor is connected to the rotating ring located at the front.

[0007] The straightening assembly includes three straightening rollers of identical specifications. The reinforcing bar is sandwiched between the three rollers, with the circumferential surfaces of the rollers tightly against the circumferential surfaces of the reinforcing bar. The central axis of the reinforcing bar coincides with the central axis of the rotating ring (i.e., their axes are concentric). The centers of the front and rear ends of the three rollers are connected to the adjacent rotating rings. During operation, the reinforcing bar enters through the front opening of the housing, passes through the rotating ring, and is sandwiched between the three rollers, thus being straightened. It then exits through the rear opening of the housing. The motor drives the front rotating ring to rotate, which in turn drives the straightening rollers to rotate. Because the circumferential surfaces of the three rollers are tightly against the circumferential surfaces of the reinforcing bar, the reinforcing bar is subjected to the rotational compression of the rollers, thereby completing the rotational straightening of the reinforcing bar.

[0008] Preferably, the output shaft of the motor is connected to a pulley, the pulley is connected to one end of a belt, and the other end of the belt is fitted onto a rotating ring located on the front side.

[0009] Preferably, the rear end of the front rotating ring is connected to the straightening roller and the front end extends out from the opening at the front end of the housing, and the other end of the belt is fitted onto the front end of the front rotating ring.

[0010] Preferably, the motor is located at the top of the front end of the housing.

[0011] Preferably, the rear opening of the shell is provided with several conveying wheels that allow auxiliary reinforcing bars to move from front to back.

[0012] Preferably, there are two conveyor wheels, located on the upper and lower sides of the rear opening of the housing, respectively.

[0013] Preferably, at least one conveyor wheel is connected to a power unit. In practice, the power unit can provide power to the conveyor wheel, so that the steel bar that has been rotated and straightened can move from front to back under the friction and compression of the conveyor wheel, and then move out from the rear opening of the shell.

[0014] Preferably, the power unit can be another motor or other existing device capable of driving the conveyor wheel to rotate.

[0015] Preferably, viewed from the front-to-back direction, the center line connecting the three straightening rollers forms a virtual equilateral triangle, and the distances between the central axes of the three straightening rollers and the central axis of the rotating ring are all equal. Because the center of the front end of each of the three straightening rollers is connected to the rotating ring located on the front side, and the center of the rear end of each of the three straightening rollers is connected to the rotating ring located on the rear side, this ensures that the angles and distances meet the requirements, guaranteeing 360° uniform rotation and straightening.

[0016] Preferably, the front and rear ends of the housing are respectively provided with mounting grooves for mounting the rotating ring, and the corresponding mounting grooves are rotatably connected to the rotating ring.

[0017] Preferably, the two mounting slots can have the same or different structural specifications.

[0018] Preferably, the front opening of the housing is an integral structure with the mounting groove located on the front side, and the rear opening of the housing is opened on the rear end of the mounting groove located on the rear side.

[0019] The beneficial effects of this invention are as follows: This product has a simple structure and is easy to operate. By setting three straightening rollers and a rotating ring, the steel bar passes directly through the three straightening rollers during straightening. As the three straightening rollers rotate with the rotating ring, they compress the steel bar between the rollers, thus achieving straightening. During straightening, it can achieve 360° uniform compression straightening of the steel bar, i.e., all-round straightening, resulting in a better straightening effect. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a front-view sectional view of the rebar straightening machine described in this utility model.

[0022] Figure 2 This is a side view sectional view of the steel bar straightening machine described in this utility model.

[0023] Figure 3 This is a schematic diagram of the combination of the straightening roller and the rotating ring described in this utility model.

[0024] In the diagram: 1. Housing; 2. Motor; 3. Rotating ring; 4. Straightening roller; 5. Conveyor wheel; 6. Pulley; 7. Belt; 8. Reinforcing bar. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0026] like Figure 1-3 As shown, in order to facilitate understanding of the above technical solution of this utility model, the above technical solution of this utility model will be described in detail below through specific usage methods.

[0027] In practice, the steel bar straightening machine includes a housing 1, with openings at both the front and rear ends of the housing 1. A straightening assembly is provided inside the housing 1, and a rotating ring 3 is symmetrically connected to the front and rear ends of the straightening assembly. A motor 2 is provided at the front end of the housing 1, and the motor 2 is connected to the rotating ring 3 located at the front.

[0028] The straightening assembly includes three straightening rollers 4 of identical specifications. The reinforcing bar 8 is sandwiched between the three rollers 4, with the circumferential surfaces of the rollers 4 tightly against the circumferential surfaces of the reinforcing bar 8. The central axis of the reinforcing bar 8 coincides with the central axis of the rotating ring 3 (i.e., their axes are concentric). The centers of the front and rear ends of the three rollers 4 are connected to the adjacent rotating rings 3. In operation, the reinforcing bar 8 enters through the front opening of the housing 1, passes through the rotating ring 3, and is sandwiched between the three rollers 4, thus being straightened. It then exits through the rear opening of the housing 1. The motor 2 drives the rotating ring 3 on the front side to rotate, which in turn drives the straightening rollers 4 to rotate. Because the circumferential surfaces of the three rollers 4 are tightly against the circumferential surfaces of the reinforcing bar 8, the reinforcing bar 8 is subjected to the rotational compression of the rollers 4, thereby completing the rotational straightening of the reinforcing bar 8. The centers of both ends of the straightening rollers 4 are fixedly connected to the rotating rings 3. During rotation, the straightening rollers 4 roll on the outside of the reinforcing bar 8, as if... Figure 1 As shown by the middle arrow, the rebar 8 is straightened.

[0029] In one embodiment, the output shaft of the motor 2 is connected to a pulley 6, the pulley 6 is connected to one end of a belt 7, and the other end of the belt 7 is fitted onto a rotating ring 3 located on the front side.

[0030] In one embodiment, the rear end of the front rotating ring 3 is connected to the straightening roller 4 and the front end extends out from the opening at the front end of the housing 1, and the other end of the belt 7 is sleeved on the front end of the front rotating ring 3.

[0031] In one embodiment, the motor 2 is located at the top front end of the housing 1.

[0032] In one embodiment, the rear opening of the housing 1 is provided with several conveying wheels 5 that move from front to back, with auxiliary steel bars 8.

[0033] In one embodiment, there are two conveying wheels 5, which are located on the upper and lower sides of the rear opening of the housing 1, respectively.

[0034] In one embodiment, at least one conveying wheel 5 is connected to a power unit. In practice, the power unit can provide power to the conveying wheel 5, so that the steel bar 8, which has been rotated and straightened, moves from front to back under the friction and compression of the conveying wheel 5, and then moves out from the rear opening of the housing 1.

[0035] In one embodiment, the power unit may be another motor or other existing device capable of driving the conveyor wheel 5 to rotate.

[0036] In one embodiment, viewed from the front-to-back direction, the center line connecting the three straightening rollers 4 forms a virtual equilateral triangle (e.g., Figure 1The distances between the central axes of the three straightening rollers 4 and the central axis of the rotating ring 3 are all equal. Because the center of the front end of the three straightening rollers 4 is connected to the rotating ring 3 located on the front side, and the center of the rear end of the three straightening rollers 4 is connected to the rotating ring 3 located on the rear side, the angle and distance meet the requirements, ensuring 360° uniform rotation and straightening.

[0037] In one embodiment, the front and rear ends of the housing 1 are respectively provided with mounting grooves for mounting the rotating ring 3, and the corresponding mounting grooves are rotatably connected to the rotating ring 3.

[0038] In one embodiment, the two mounting slots may have the same or different structural specifications.

[0039] In one embodiment, the front opening of the housing 1 is integral with the mounting groove located on the front side, and the rear opening of the housing 1 is opened on the rear end of the mounting groove located on the rear side.

[0040] Working principle: Because the central axis of the reinforcing bar 8 coincides with that of the rotating ring 3 (i.e., the axes are concentric), the rotating ring 3 can drive the three straightening rollers 4 to rotate around the axis of the rotating ring 3, thus straightening the reinforcing bar 8. When the three straightening rollers 4 rotate around the axis of the rotating ring 3, they can achieve 360° compression and straightening of the circumferential surface of the reinforcing bar 8, resulting in a better straightening effect. To straighten the reinforcing bar, use pliers or other tools to insert the reinforcing bar between the three straightening rollers 4. The three straightening rollers 4 will straighten the reinforcing bar as they rotate. After straightening, the reinforcing bar 6 can be removed with pliers. Reinforcing bars with a length the same as or slightly longer than the straightening rollers 4 can be straightened.

[0041] The rear end of the housing 1 can be equipped with conveyor wheels 5, which are used to pass through the straightened reinforcing bars 6, and the two conveyor wheels 5 exert a compressive force on the reinforcing bars 6. At least one conveyor wheel 5 is connected to a power unit, which provides power to the conveyor wheel 5, carrying the reinforcing bars 6 through the straightening rollers 4, and passing the straightened reinforcing bars 6 out of the straightening rollers 4, thereby completing the straightening of the reinforcing bars and finally conveying them out of the housing 1. By using the conveyor wheels 5 and the power unit, manual feeding can be avoided, and the straightening of longer reinforcing bars can be achieved. Because this product uses rolling straightening and conveying, and the straightening rollers 4, conveyor wheels 5 and reinforcing bars 8 all involve rolling friction, the coefficient of friction is very small, so it is very labor-saving when straightening and conveying the reinforcing bars 8.

[0042] In summary, with the help of the above-mentioned technical solution of this utility model, the product has a simple structure and is easy to operate. By setting three straightening rollers and a rotating ring, when straightening the reinforcing bars, the reinforcing bars pass directly through the three straightening rollers. When the three straightening rollers are rotated by the rotating ring, the reinforcing bars between the three straightening rollers are squeezed, thereby achieving straightening of the reinforcing bars. During straightening, 360° uniform compression straightening of the reinforcing bars can be achieved, that is, all-round straightening, resulting in a better straightening effect.

[0043] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A steel bar straightening machine, characterized in that, The device includes a housing (1), which has openings at both the front and rear ends. A straightening assembly is provided inside the housing (1), and a rotating ring (3) is symmetrically connected to the front and rear ends of the straightening assembly. A motor (2) is provided at the front end of the housing (1), and the motor (2) is connected to the rotating ring (3) located at the front. The straightening assembly includes three straightening rollers (4) of the same specification. The reinforcing bar (8) is sandwiched between the three straightening rollers (4). The circumferential surfaces of the three straightening rollers (4) are respectively in close contact with the circumferential surfaces of the reinforcing bar (8). The central axis of the reinforcing bar (8) coincides with the central axis of the rotating ring (3). The centers of the front and rear ends of the three straightening rollers (4) are respectively connected to the adjacent rotating ring (3). From the front and rear direction, the center line connecting the three straightening rollers (4) forms a virtual equilateral triangle. The distance between the central axis of the three straightening rollers (4) and the central axis of the rotating ring (3) is equal.

2. The rebar straightening machine as described in claim 1, characterized in that, The output shaft of the motor (2) is connected to a pulley (6), which is connected to one end of a belt (7), and the other end of the belt (7) is fitted onto the rotating ring (3) located on the front side.

3. The rebar straightening machine as described in claim 2, characterized in that, The rear end of the front rotating ring (3) is connected to the straightening roller (4) and the front end extends out from the opening at the front end of the housing (1). The other end of the belt (7) is fitted onto the front end of the front rotating ring (3).

4. The rebar straightening machine as described in claim 3, characterized in that, The motor (2) is located at the top of the front end of the housing (1).

5. The rebar straightening machine as described in claim 1, characterized in that, The shell (1) has several conveying wheels (5) at the rear end opening to assist the steel bar (8) in moving from front to back.

6. The rebar straightening machine as described in claim 5, characterized in that, There are two conveyor wheels (5), which are located on the upper and lower sides of the rear opening of the housing (1), respectively.

7. The rebar straightening machine as described in claim 5, characterized in that, At least one of the conveyor wheels (5) is connected to a power unit.

8. The rebar straightening machine as described in claim 1, characterized in that, The front and rear ends of the housing (1) are respectively provided with mounting grooves for mounting the rotating ring (3), and the corresponding mounting grooves are rotatably connected to the rotating ring (3).

9. The rebar straightening machine as described in claim 8, characterized in that, The front opening of the housing (1) is integral with the mounting groove located on the front side, and the rear opening of the housing (1) is opened on the rear end of the mounting groove located on the rear side.

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