Bending machine applicable to steel bars with different diameters

Abstract

The utility model discloses a bending machine applicable to steel bars with different diameters. The bending machine comprises a mounting rack, a self-adaptive clamping mechanism and a bending mechanism, the self-adaptive clamping mechanism comprises a self-adaptive driving assembly and a self-adaptive supporting assembly; the self-adaptive driving assembly comprises a driving wheel, a transmission shaft, a motor, an elastic device A and a supporting seat A; the self-adaptive supporting assembly comprises a supporting wheel, a connecting shaft, a bearing seat, an elastic device B and a supporting seat B; a strip-shaped hole A and a strip-shaped hole B are formed in the rack; the bending mechanism comprises a clamp head, the clamp head is provided with a bending wheel, and the bending wheel is provided with a bending rod; a clamping strip is arranged on the clamp head; in the working process, the bending wheel rotates, the bending rod is matched with the clamping strip, and the reinforcing steel bar stretching out of the clamping strip is bent. According to the steel bar bending machine capable of being suitable for the steel bars with the different diameters, when the steel bars with the different diameters are bent, only the clamping strips need to be replaced, operation is easy, time and labor are saved, and the bending efficiency of machining of the steel bars with the multiple specifications is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel bar bending, in particular to a steel bar bending machine which can be suitable for steel bars with different diameters. Background Art

[0002] Rebar refers to steel used for reinforced concrete and prestressed reinforced concrete. Its cross section is round, and sometimes square with rounded corners. It includes plain round steel bars, ribbed steel bars, and twisted steel bars. During use, the steel bars need to be bent according to the specific situation, and then bending equipment is needed.

[0003] Rebar bending equipment, as the name implies, is used for rebars. It applies pressure to one end of the rebar so that one end of the rebar can be bent to the required angle. Most rebar bending processes are usually completed by automatic rebar bending machines. In order to save costs, a few small workshops and factories still use manual bending mechanisms to bend the rebars.

[0004] Existing automatic rebar bending machines can usually only bend rebars of one specification and are not suitable for bending rebars of different diameters. The few devices that can bend rebars of multiple specifications require manual adjustment of the corresponding clamping structure when processing rebars of different specifications, but the adjustment is rather cumbersome and inconvenient to use. Utility Model Content

[0005] In view of the shortcomings of the prior art, the present application provides a steel bar bending machine applicable to different diameters. The steel bar bending machine applicable to different diameters of the present application adopts a specific structure, can bend steel bars of different specifications and diameters, has good applicability, and is conducive to promotion.

[0006] The technical solution of this application is:

[0007] A steel bar bending machine that can be applied to different diameters, comprising an installation frame, an adaptive clamping mechanism and a bending mechanism; the adaptive clamping mechanism comprises an adaptive driving assembly and an adaptive supporting assembly; the adaptive driving assembly comprises a driving wheel, a transmission shaft, a motor, an A elastic device and an A supporting seat, the motor can drive the driving wheel to rotate through the transmission shaft, the A elastic device is arranged between the motor and the A supporting seat, and the A supporting seat is connected to the frame; the adaptive supporting assembly comprises a supporting wheel, a connecting shaft, a bearing seat, a B elastic device and a B supporting seat, the B elastic device is arranged between the bearing seat and the B supporting seat, and the B supporting seat is connected to the frame; the frame is provided with upper and lower The A bar hole and the B bar hole are symmetrically arranged; the motor can drive the transmission shaft to move up and down along the A bar hole under the elastic force of the A elastic device, and the bearing seat can drive the connecting shaft to move up and down along the B bar hole under the elastic force of the B elastic device; the bending mechanism includes a fixed clamp head, a rotatable bending wheel is mounted on the clamp head, and a raised bending rod is provided on the bending wheel; the clamp head is provided with a pair of detachable clamping strips symmetrically arranged up and down, and the gap between the two clamping strips is consistent with the diameter of the steel bar during processing; when working, the bending wheel rotates, so that the bending rod cooperates with the clamping strip to bend the steel bar extending out of the clamping strip.

[0008] Compared with the prior art, the adaptive clamping mechanism of the present application, which can be used in steel bar bending machines of different diameters, can clamp steel bars of different diameters through the driving wheel and the supporting wheel under the action of the A elastic device and the B elastic device, and the driving wheel is connected to the motor through the transmission shaft, so as to transport the steel bars to the bending mechanism; when bending steel bars of different diameters, it is only necessary to change the specifications of the clamping strips (the gap between the two clamping strips should match the diameter of the steel bar), which is simple to operate, saves time and effort, and thus improves the bending efficiency of steel bars of multiple specifications.

[0009] As an optimization, in the aforementioned steel bar bending machine applicable to different diameters, a guide mechanism is provided on the mounting frame between the adaptive clamping mechanism and the bending mechanism; the guide mechanism is three adaptive support components arranged in a herringbone shape; correspondingly, a corresponding strip hole is provided on the frame, which cooperates with the connecting shaft, so that the connecting shaft can move up and down along the strip hole under the elastic force of the B elastic device. With this structure, a guide mechanism is provided to play a guiding role when the steel bars are transported; and the herringbone-shaped structure makes the steel bars transported more smoothly.

[0010] As an optimization, in the aforementioned steel bar bending machine applicable to different diameters, a transition mechanism is provided on the mounting frame between the guide mechanism and the adaptive clamping mechanism, and the transition mechanism is a pair of adaptive support components symmetrically arranged up and down. This structure plays a role of transition when the steel bar is transported.

[0011] In addition, converting the linear motion of the guide mechanism and the transition mechanism into an oblique arc motion can resolve the rigid impact when they just come into contact with the steel bars, thereby increasing the service life of the guide mechanism and the transition mechanism; as a specific form: the guide mechanism can also be composed of three arc-shaped clamping assemblies arranged in a herringbone shape; the transition mechanism can also be composed of a pair of arc-shaped clamping assemblies symmetrically arranged up and down; the arc-shaped clamping assembly includes a clamping wheel, a circular shaft, a connecting rod, a spring, a fixed shaft and a central shaft; the circular shaft is connected to the clamping wheel through a bearing; the central shaft is fixed on the mounting frame; one end of the connecting rod is connected to the circular shaft, and the other end is sleeved on the central shaft to form a rotating auxiliary structure; one end of the fixed shaft is connected to the mounting frame, and the other end is sleeved with a rotating part; one end of the spring is connected to the rotating part, and the other end is connected to the reinforcing rib on the connecting rod; correspondingly, corresponding arc holes are provided on the frame.

[0012] As an optimization, in the aforementioned steel bar bending machine applicable to different diameters, a cutting mechanism is provided on the mounting frame between the bending mechanism and the guide mechanism, and the cutting mechanism can perform cutting processing on the steel bars; the bending mechanism is provided on the telescopic mechanism, and the telescopic mechanism includes a slide connected to the bending mechanism, a slide rail matched with the slide, a support frame connected to the slide rail, and a cylinder driving the slide to move; the support frame is connected to the mounting frame. With this structure, a telescopic mechanism is provided, so that the bending mechanism can be retracted into the mounting frame after the bending process is completed; at this time, the motor drives the driving wheel to reverse, so that the bent steel bars are returned to the specified position; the cutting mechanism then performs cutting processing on the returned steel bars, which can avoid the waste of materials caused by excessive excess due to direct cutting of the steel bars.

[0013] Further, as a specific structure, the bending wheel is mounted on the fixture head via a bearing sleeve, and a pulley is provided on the bending wheel, which is connected to a driving motor via a belt.

[0014] As an optimization, in the aforementioned steel bar bending machine applicable to different diameters, the A elastic device and the B elastic device are both springs. With this structure, the cost is low and it is easy to replace.

[0015] As an optimization, in the aforementioned steel bar bending machine applicable to different diameters, the diameter of the driving wheel is larger than the diameter of the supporting wheel. With this structure, a driving wheel with a larger diameter can provide a greater linear speed at the same rotation speed, so that the steel bars are transported faster, thereby improving processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a steel bar bending machine (with steel bars) applicable to different diameters according to the first embodiment of the present application. Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the structure of a steel bar bending machine applicable to different diameters according to the first embodiment of the present application. Figure 2 ;

[0018] Figure 3 yes Figure 1 A front view of

[0019] Figure 4 yes Figure 2 A front view of

[0020] Figure 5 It is a schematic diagram of the structure of the adaptive drive component of the present application;

[0021] Figure 6 It is a schematic diagram of the structure of the adaptive support assembly of the present application;

[0022] Figure 7 This is a schematic diagram of the structure of the bending mechanism and telescopic mechanism of this application Figure 1 ;

[0023] Figure 8 This is a schematic diagram of the structure of the bending mechanism and telescopic mechanism of this application Figure 1 ;

[0024] Fig. 9 yes Figure 8 Cross-sectional view of the structure (vertically cut along the center of the bending wheel);

[0025] Fig.10 This is a schematic diagram of the structure of a steel bar bending machine applicable to different diameters according to the second embodiment of the present application. Figure 1 ;

[0026] Fig.11 This is a schematic diagram of the structure of a steel bar bending machine applicable to different diameters according to the second embodiment of the present application. Figure 2 ;

[0027] Fig.12 yes Fig.10 A front view of

[0028] Fig.13 yes Fig.11 A front view of

[0029] Fig.14 It is a structural schematic diagram of the arc clamping assembly of the present application.

[0030] The markings in the attached drawings are: 1-mounting frame, 11-A bar hole, 12-B bar hole; 2-adaptive clamping mechanism, 21-adaptive driving assembly, 211-driving wheel, 212-transmission shaft, 213-motor, 214-A support seat, 22-adaptive support assembly, 221-support wheel, 222-connecting shaft, 223-bearing seat, 224-B support seat; 3-bending mechanism, 31-clamp head, 31 1-clamping bar, 32-bending wheel, 321-bending rod; 4-A elastic device; 5-B elastic device; 6-rebar; 7-arc clamping assembly, 71-clamping wheel, 72-circular shaft, 73-connecting rod, 731-reinforcement rib, 74-spring, 75-fixed shaft, 76-central shaft, 77-rotating part; 8-cutting mechanism; 9-telescopic mechanism, 91-slide table, 92-slide rail, 93-support frame, 94-cylinder. DETAILED DESCRIPTION

[0031] The present application is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present application.

[0032] Example 1 (see Figures 1 to 9 ):

[0033] A steel bar bending machine that can be applied to different diameters includes an installation frame 1, an adaptive clamping mechanism 2 and a bending mechanism 3; the adaptive clamping mechanism 2 includes an adaptive driving assembly 21 and an adaptive supporting assembly 22; the adaptive driving assembly 21 includes a driving wheel 211, a transmission shaft 212, a motor 213, an A elastic device 4 and an A support seat 214, the motor 213 can drive the driving wheel 211 to rotate through the transmission shaft 212, the A elastic device 4 is arranged between the motor 213 and the A support seat 214, and the A support seat 214 is connected to the frame 1; the adaptive supporting assembly 22 includes a supporting wheel 221, a connecting shaft 222, a bearing seat 223, a B elastic device 5 and a B support seat 224, the B elastic device 5 is arranged between the bearing seat 223 and the B support seat 224, and the B support seat 224 is connected to the frame 1; the The frame 1 is provided with an A-shaped hole 11 and a B-shaped hole 12 which are symmetrically arranged up and down; the motor 213 can drive the transmission shaft 212 to move up and down along the A-shaped hole 11 under the elastic force of the A elastic device 4, and the bearing seat 223 can drive the connecting shaft 222 to move up and down along the B-shaped hole 12 under the elastic force of the B elastic device 5; the bending mechanism 3 includes a fixed clamp head 31, a rotatable bending wheel 32 is sleeved on the clamp head 31, and a protruding bending rod 321 is provided on the bending wheel 32; the clamp head 31 is provided with a pair of detachable and symmetrically arranged clamping bars 311, and the gap between the two clamping bars 311 is consistent with the diameter of the steel bar 6 during processing; when working, the bending wheel 32 rotates, so that the bending rod 321 cooperates with the clamping bar 311 to bend the steel bar 6 extending out of the clamping bar 311.

[0034] In this embodiment, a guide mechanism is provided on the mounting frame 1 between the adaptive clamping mechanism 2 and the bending mechanism 3; the guide mechanism is three adaptive support components 22 arranged in a herringbone shape; correspondingly, a corresponding strip hole is provided on the frame 1, which cooperates with the connecting shaft 222, so that the connecting shaft 222 can move up and down along the strip hole under the elastic force of the B elastic device 5. The guide mechanism is provided to guide the steel bar 6 when it is transported; and the herringbone structure makes the steel bar 6 relatively stable when it is transported.

[0035] In this embodiment, a transition mechanism is provided on the mounting frame 1 between the guide mechanism and the adaptive clamping mechanism 2 , and the transition mechanism is a pair of adaptive support components 22 symmetrically arranged up and down.

[0036] In this embodiment, a cutting mechanism 8 is provided on the mounting frame 1 between the bending mechanism 3 and the guide mechanism, and the cutting mechanism 8 can perform cutting processing on the steel bar 6; the bending mechanism 3 is provided on the telescopic mechanism 9, and the telescopic mechanism 9 includes a slide 91 connected to the bending mechanism 3, a slide rail 92 matched with the slide 91, a support frame 93 connected to the slide rail 92, and a cylinder 94 driving the slide 91 to move; the support frame 93 is connected to the mounting frame 1. The telescopic mechanism 9 is provided so that the bending mechanism 3 can be retracted into the mounting frame 1 after the bending process is completed; at this time, the motor 213 drives the driving wheel 211 to reverse, so that the bent steel bar 6 returns to the specified position; the cutting mechanism 8 then performs cutting processing on the returned steel bar 6, which can avoid the waste of materials caused by excessive excess due to direct cutting of the steel bar 6.

[0037] In this embodiment, the bending wheel 32 is mounted on the fixture head 31 via a bearing sleeve, and a pulley is provided on the bending wheel 32, which is connected to the driving motor via a belt; the A elastic device 4 and the B elastic device 5 are both springs.

[0038] In this embodiment, the diameter of the driving wheel 211 is larger than the diameter of the supporting wheel 221. With this structure, the driving wheel 211 with a larger diameter can provide a greater linear speed at the same rotation speed, so that the steel bar 6 is transported faster, thereby improving the processing efficiency.

[0039] The steel bar bending machine of this embodiment is applicable to different diameters. When working, the corresponding clamping strip 311 is replaced according to the diameter of the steel bar 6 to be processed; the steel bar 6 is placed between the driving wheel 211 and the supporting wheel 221, and the motor 213 is started; at this time, the motor 213 drives the driving wheel 211 to rotate forward, thereby driving the steel bar 6 to move; when the steel bar 6 contacts the transition mechanism or the guide mechanism, the spring in the B elastic device 5 is compressed, and the corresponding supporting wheel 221 clamps the steel bar 6; when the steel bar 6 reaches the specified position after passing through the clamping strip 311, the motor 213 is paused, and the bending wheel 32 is rotated, so that the bending rod 321 bends the steel bar 6; after the bending is completed, the bending mechanism 3 is retracted into the mounting frame 1, the motor 213 is reversed, and the steel bar 6 is driven back to the specified position, the motor 213 is paused, and the cutting mechanism 8 cuts the steel bar 6; after the cutting is completed, the bending mechanism 3 extends out of the mounting frame 1, the motor 213 rotates forward, and drives the steel bar 6 to move; repeating the above steps can perform batch bending processing. When it is necessary to perform bending processing on steel bars 6 of different diameters, it is only necessary to replace the corresponding clamping strips 311 .

[0040] Example 2 (see Figures 5 to 14 ):

[0041] Different from the first embodiment, the guide mechanism is composed of three arc-shaped clamping assemblies 7 arranged in a herringbone shape; the transition mechanism is composed of a pair of arc-shaped clamping assemblies 7 symmetrically arranged up and down; the arc-shaped clamping assembly 7 includes a clamping wheel 71, a circular shaft 72, a connecting rod 73, a spring 74, a fixed shaft 75 and a central shaft 76; the circular shaft 72 is connected to the clamping wheel 71 through a bearing; the central shaft 76 is fixed on the mounting frame 1; one end of the connecting rod 73 is connected to the circular shaft 72, and the other end is sleeved on the central shaft 76 to form a rotating auxiliary structure; one end of the fixed shaft 75 is connected to the mounting frame 1, and the other end is sleeved with a rotating member 77; one end of the spring 74 is connected to the rotating member 77, and the other end is connected to the reinforcing rib 731 on the connecting rod 73; correspondingly, corresponding arc-shaped holes are provided on the frame 1.

[0042] The steel bar bending machine of this embodiment is applicable to different diameters. When working, the corresponding clamping strip 311 is replaced according to the diameter of the steel bar 6 to be processed; the steel bar 6 is placed between the driving wheel 211 and the supporting wheel 221, and the motor 213 is started; at this time, the motor 213 drives the driving wheel 211 to rotate forward, thereby driving the steel bar 6 to move; when the steel bar 6 contacts the transition mechanism or the guide mechanism, the spring 74 in the arc clamping assembly 7 is stretched, and the corresponding clamping wheel 71 clamps the steel bar 6; when the steel bar 6 reaches the specified position after passing through the clamping strip 311, the motor 213 is paused, and the bending wheel 32 is rotated, so that the bending rod 321 bends the steel bar 6; after the bending is completed, the bending mechanism 3 is retracted into the mounting frame 1, the motor 213 is reversed, and the steel bar 6 is driven back to the specified position, the motor 213 is paused, and the cutting mechanism 8 cuts the steel bar 6; after the cutting is completed, the bending mechanism 3 extends out of the mounting frame 1, the motor 213 is rotated forward, and the steel bar 6 is driven to move; the above steps can be repeated to perform batch bending processing. When it is necessary to perform bending processing on steel bars 6 of different diameters, it is only necessary to replace the corresponding clamping strips 311 .

[0043] The above general description of the utility model involved in this application and the description of its specific implementation method should not be understood as limiting the technical solution of the utility model. Based on the disclosure of this application, those skilled in the art can add, reduce or combine the disclosed technical features in the above general description or / and the specific implementation method (including examples) without violating the constituent elements of the utility model involved, to form other technical solutions within the scope of protection of this application.

Claims

1. It can be applied to steel bar bending machines with different diameters, and its characteristics are: It comprises a mounting frame (1), an adaptive clamping mechanism (2) and a bending mechanism (3); The adaptive clamping mechanism (2) comprises an adaptive driving assembly (21) and an adaptive supporting assembly (22); the adaptive driving assembly (21) comprises a driving wheel (211), a transmission shaft (212), a motor (213), an A elastic device (4) and an A supporting seat (214); the motor (213) can drive the driving wheel (211) to rotate via the transmission shaft (212); the A elastic device (4) is arranged between the motor (213) and the A supporting seat (214); the A supporting seat (214) is connected to the frame (1); the adaptive supporting assembly (22) comprises a supporting wheel (221), a connecting shaft (222), a shaft A bearing seat (223), a B elastic device (5) and a B support seat (224), wherein the B elastic device (5) is arranged between the bearing seat (223) and the B support seat (224), and the B support seat (224) is connected to the frame (1); the frame (1) is provided with an A strip hole (11) and a B strip hole (12) symmetrically arranged up and down; the motor (213) can drive the transmission shaft (212) to move up and down along the A strip hole (11) under the elastic force of the A elastic device (4), and the bearing seat (223) can drive the connecting shaft (222) to move up and down along the B strip hole (12) under the elastic force of the B elastic device (5); The bending mechanism (3) comprises a fixed clamp head (31), a rotatable bending wheel (32) is sleeved on the clamp head (31), and a protruding bending rod (321) is provided on the bending wheel (32); the clamp head (31) is provided with a pair of detachable clamping bars (311) which are symmetrically arranged up and down, and the gap between the two clamping bars (311) is consistent with the diameter of the steel bar (6) during processing; when working, the bending wheel (32) rotates so that the bending rod (321) cooperates with the clamping bar (311) to perform bending processing on the steel bar (6) extending out of the clamping bar (311).

2. The steel bar bending machine applicable to different diameters according to claim 1, characterized in that: A guide mechanism is provided on the mounting frame (1) between the adaptive clamping mechanism (2) and the bending mechanism (3), and the guide mechanism is three adaptive support components (22) arranged in a herringbone shape; correspondingly, a corresponding strip hole is provided on the frame (1) and cooperates with the connecting shaft (222), so that the connecting shaft (222) can move up and down along the strip hole under the elastic force of the B elastic device (5).

3. The steel bar bending machine applicable to different diameters according to claim 2, characterized in that: A transition mechanism is provided on the installation frame (1) between the guide mechanism and the adaptive clamping mechanism (2), and the transition mechanism is a pair of adaptive support components (22) symmetrically arranged up and down.

4. The steel bar bending machine applicable to steel bars of different diameters according to claim 1, characterized in that: A guide mechanism is provided on the mounting frame (1) between the adaptive clamping mechanism (2) and the bending mechanism (3); a transition mechanism is provided on the mounting frame (1) between the guide mechanism and the adaptive clamping mechanism (2); the guide mechanism is three arc-shaped clamping assemblies (7) arranged in a herringbone shape; the transition mechanism is a pair of arc-shaped clamping assemblies (7) symmetrically arranged up and down; the arc-shaped clamping assembly (7) comprises a clamping wheel (71), a circular shaft (72), a connecting rod (73), a spring (74), a fixed shaft (75) and a central shaft (76); the circular shaft (7 2) is connected to the clamping wheel (71) through a bearing; the central shaft (76) is fixed on the mounting frame (1); one end of the connecting rod (73) is connected to the circular shaft (72), and the other end is sleeved on the central shaft (76) to form a rotating auxiliary structure; one end of the fixed shaft (75) is connected to the mounting frame (1), and the other end is sleeved with a rotating member (77); one end of the spring (74) is connected to the rotating member (77), and the other end is connected to the reinforcing rib (731) on the connecting rod (73); correspondingly, a corresponding arc hole is provided on the frame (1).

5. The steel bar bending machine applicable to different diameters according to claim 3 or 4, characterized in that: A cutting mechanism (8) is provided on the mounting frame (1) between the bending mechanism (3) and the guide mechanism, and the cutting mechanism (8) is capable of cutting the steel bars (6); the bending mechanism (3) is provided on the telescopic mechanism (9), and the telescopic mechanism (9) comprises a slide table (91) connected to the bending mechanism (3), a slide rail (92) matched with the slide table (91), a support frame (93) connected to the slide rail (92), and a cylinder (94) for driving the slide table (91) to move; the support frame (93) is connected to the mounting frame (1).

6. The steel bar bending machine applicable to different diameters according to claim 5, characterized in that: The bending wheel (32) is mounted on the fixture head (31) via a bearing sleeve, and a belt pulley is provided on the bending wheel (32) and is connected to a driving motor via a belt.

7. The steel bar bending machine applicable to different diameters according to claim 6, characterized in that: The A elastic device (4) and the B elastic device (5) are both springs.

8. The steel bar bending machine applicable to different diameters according to claim 7, characterized in that: The diameter of the driving wheel (211) is greater than the diameter of the supporting wheel (221).

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