Double-machine-head quick bending mechanism

Abstract

The utility model provides a double-machine-head rapid bending mechanism, and belongs to the technical field of stirrup bending equipment. Comprising a box body, a feeding port is formed in the side, close to a rebar feeding machine, of the box body, a material supporting frame is rotationally arranged at the position of the feeding port in the box body, a material carrying frame is arranged at the position, below the material supporting frame, of one side of the box body, a guide plate is connected between the material supporting frame and the material carrying frame, and a mounting cavity used for containing rebars is formed between the material supporting frame and the guide plate; a first driving part used for driving the material supporting frame to rotate so as to open / close the mounting cavity is arranged in the box body, a hoop bending part is arranged on the box body at the material supporting frame, the hoop bending part comprises two hoop bending main bodies which are arranged on the box body in a sliding mode in the length direction of the reinforcing steel bars, and center column heads are arranged on the hoop bending main bodies above the material supporting frame; a bending wheel is rotationally arranged on the hoop bending body around the center column head, a gap allowing a steel bar to penetrate through is reserved between the bending wheel and the center column head, and a second driving part used for driving the hoop bending body to move is arranged in the box body. The effect of improving the steel bar bending efficiency is achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of stirrup bending equipment, and in particular to a double-head rapid bending mechanism. Background Technology

[0002] In municipal road and bridge construction, box girders are an essential structural component. To improve construction efficiency, the structural components and internal reinforcing steel cages of the box girder are usually prefabricated. When fabricating the bottom and web steel cages of the box girder, the arranged bottom and web stirrups need to be welded into a three-in-one combined stirrup. External longitudinal bars are welded to the outside of the combined stirrup, and internal longitudinal bars are welded to the inside of the combined stirrup, thus forming the integral steel cage for the bottom and web of the box girder.

[0003] The bottom plate stirrups and web plate stirrups are both formed by bending steel bars. In order to facilitate the construction workers to make stirrups on site, a double-head rapid bending mechanism is required. Utility Model Content

[0004] In view of the above problems, this utility model provides a dual-head rapid bending mechanism.

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

[0006] A dual-head rapid bending mechanism is provided for installation at the discharge end of a rebar feeder. It includes a housing with an inlet for rebar to pass through on the side of the housing near the feeder. A support frame is rotatably mounted inside the housing at the inlet. A carrier frame is mounted below the support frame on one side of the housing. A guide plate connects the support frame and the carrier frame, forming an installation cavity for accommodating the rebar between the support frame and the guide plate. A first driving member is provided inside the housing to drive the support frame to rotate and open / close the installation cavity. A bending hoop component for bending the rebar is provided on the housing at the carrier frame. The bending hoop component includes two bending hoop bodies slidably mounted on the housing along the length of the rebar. A central column is provided on each bending hoop body above the carrier frame. A bending wheel is rotatably mounted on each bending hoop body around the central column, with a gap between the bending wheel and the central column for the rebar to pass through. A second driving member is provided inside the housing to drive the bending hoop bodies to move.

[0007] Furthermore, the first driving component includes a first cylinder, the cylinder body of the first cylinder is rotatably mounted on the housing, a connecting frame is rotatably mounted on the piston rod of the first cylinder, and the end of the material support frame away from its own axis of rotation is fixedly connected to the connecting frame.

[0008] Furthermore, the second driving component includes a bidirectional screw and a drive motor. The two bent hoop bodies are slidably disposed in opposite directions within the housing, and each of the two bent hoop bodies has a mounting plate at its bottom. The two mounting plates are threadedly connected to the two threaded sections of the bidirectional screw, and the drive motor is disposed within the housing, with its output shaft being drively connected to the bidirectional screw.

[0009] Furthermore, the box body is also equipped with clamping components for clamping and fixing reinforcing bars. The clamping components include a base plate and a pressure plate. The base plate is slidably mounted on the mounting plate along the central column head axis, and the pressure plate is slidably mounted on the base plate along the central column head axis. A slot is left between the pressure plate and the base plate to limit the rolling displacement of the reinforcing bars. The box body is equipped with a second cylinder for driving the base plate to move, and the base plate is equipped with a third cylinder for driving the pressure plate to move.

[0010] Furthermore, the bending wheel is provided with an auxiliary component for supporting the reinforcing bar. The auxiliary component includes a support rod, one end of which is connected to the bending wheel, and the other end of the support rod has a limiting groove on its outer wall for accommodating the reinforcing bar.

[0011] Furthermore, the outer wall of the box is provided with positioning components at both ends of the material carrier for contacting the ends of the reinforcing bars. The positioning components include positioning plates, which are slidably disposed on the outer wall of the box along the length of the reinforcing bars. A fourth cylinder is provided on the outer wall of the box for driving the positioning plates to move.

[0012] The beneficial effects of this utility model are as follows: After the rebar feeder feeds the rebar into the installation cavity, the first driving component can drive the material support frame to rotate and open the installation cavity, so that the rebar rolls along the guide plate onto the material carrier. Then, the rebar is moved between the central column head and the material carrier. Subsequently, the bending wheel can be driven to rotate around the central column head through the bending hoop body, so that it can bend the rebar. The bending hoop body can be moved through the second driving component, so as to adjust the bending part of the bending hoop component on the rebar, which has the effect of improving the bending efficiency of the rebar. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a dual-head rapid bending mechanism according to an embodiment of this application.

[0014] Figure 2 This is a schematic diagram of the internal structure of a box-shaped rapid bending mechanism according to an embodiment of this application.

[0015] Figure 3 for Figure 2 A magnified view of part A in the diagram.

[0016] The components include: 1. Rebar feeder; 2. Box body; 21. Material carrier; 3. Material support frame; 31. Mounting cavity; 4. Guide plate; 5. First cylinder; 51. Connecting frame; 6. Bending hoop component; 61. Bending hoop body; 62. Central column head; 63. Bending wheel; 64. Mounting plate; 7. Second driving component; 71. Bidirectional screw; 72. Drive motor; 8. Clamping component; 81. Base plate; 811. Second cylinder; 82. Pressure plate; 821. Third cylinder; 9. Support rod; 91. Limiting groove; 10. Positioning component; 101. Positioning plate; 102. Fourth cylinder; 20. Rebar. Detailed Implementation

[0017] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0018] This application discloses a dual-head rapid bending mechanism, referring to... Figure 1 , Figure 2 and Figure 3 The system includes a housing 2, on the outside of which a rebar feeder 1 is installed. A feed inlet for rebar 20 to pass through is provided on the side of the housing 2 near the feeder 1. A material support frame 3 is rotatably mounted inside the housing 2 at the feed inlet. A loading rack 21 is installed on one side of the housing 2 below the material support frame 3. A guide plate 4 connects the material support frame 3 and the loading rack 21, forming an installation cavity 31 for accommodating the rebar 20 between the material support frame 3 and the guide plate 4. A first driving component is installed inside the housing 2 to drive the material support frame 3 to rotate and open / close the installation cavity 31. A bending hoop component 6 for bending the reinforcing bar 20 is provided on the box body 2 at the material rack 21. The bending hoop component 6 includes two bending hoop bodies 61 that are slidably arranged on the box body 2 along the length of the reinforcing bar 20. A central column head 62 is provided on the bending hoop body 61 above the material rack 21. A bending wheel 63 is rotatably arranged on the bending hoop body 61 around the central column head 62, and a gap is left between the bending wheel 63 and the central column head 62 for the reinforcing bar 20 to pass through. A second driving member 7 for driving the bending hoop body 61 to move is installed inside the box body 2.

[0019] In this embodiment, after the rebar feeder 1 feeds the rebar 20 into the mounting cavity 31, the first driving member drives the material support frame 3 to rotate and open the mounting cavity 31, allowing the rebar 20 to roll along the guide plate 4 onto the material carrier 21. Then, the rebar 20 is moved between the central column head 62 and the material carrier 21. Subsequently, the bending wheel 63 is driven to rotate around the central column head 62 via the bending hoop body 61, enabling it to bend the rebar 20. The second driving member 7 can move the bending hoop body 61 to adjust the bending position of the bending hoop component 6 on the rebar 20. This improves the bending efficiency of the rebar 20.

[0020] Specifically, the first driving component includes a first cylinder 5, the cylinder body of the first cylinder 5 is rotatably mounted on the housing 2, and a connecting frame 51 is rotatably mounted on the piston rod of the first cylinder 5. The end of the material support frame 3 away from its own rotating shaft is welded and fixed to the connecting frame 51.

[0021] In this embodiment, when the piston rod of the first cylinder 5 extends out of the cylinder body, it can drive the material support frame 3 to rotate and close the mounting cavity 31, so that the steel bar 20 can stably enter the mounting cavity 31; after the steel bar 20 has completely entered the mounting cavity 31, the piston rod of the first cylinder 5 retracts into the cylinder body, which can drive the material support frame 3 to rotate and open the mounting cavity 31, so that the steel bar 20 can roll along the guide plate 4 onto the material carrier 21.

[0022] Specifically, the second driving component 7 includes a bidirectional screw 71 and a drive motor 72. Two bent clamp bodies 61 are slidably disposed in opposite directions within the housing 2, and mounting plates 64 are bolted to the bottom of each of the two bent clamp bodies 61. The two mounting plates 64 are threadedly connected to the two threaded sections of the bidirectional screw 71, respectively. The drive motor 72 is disposed within the housing 2, and the output shaft of the drive motor 72 is connected to the bidirectional screw 71 for transmission.

[0023] In this embodiment of the application, the two stirrup bodies 61 can be driven to slide in opposite directions by the drive motor 72, thereby adjusting the bending part of the steel bar 20 and thus adjusting the length of the stirrup.

[0024] Furthermore, the housing 2 is also equipped with a clamping member 8 for clamping and fixing the reinforcing bar 20. The clamping member 8 includes a base plate 81 and a pressure plate 82. The base plate 81 is slidably mounted on the mounting plate 64 along the central column head 62, and the pressure plate 82 is slidably mounted on the base plate 81 along the central column head 62. A groove is provided between the pressure plate 82 and the base plate 81 to limit the rolling displacement of the reinforcing bar 20. A second cylinder 811 for driving the base plate 81 to move is installed on the housing 2, and a third cylinder 821 for driving the pressure plate 82 to move is provided on the base plate 81.

[0025] In this embodiment, when the reinforcing bar 20 rolls onto the loading rack 21, it also falls onto the base plate 81. The third cylinder 821 can drive the pressure plate 82 to move and abut against the outer wall of the reinforcing bar 20, so that the reinforcing bar 20 can be confined within the slot. Then, the second cylinder 811 can move the base plate 81 so that the reinforcing bar 20 can move between the central column head 62 and the loading rack 21, so that the bending wheel 63 can bend the reinforcing bar 20.

[0026] Furthermore, an auxiliary component for supporting the reinforcing bar 20 is installed on the bending wheel 63. The auxiliary component includes a support rod 9, one end of which is connected to the bending wheel 63, and the other end of the support rod 9 has a limiting groove 91 on its outer wall for accommodating the reinforcing bar 20.

[0027] During the bending process of the bending wheel 63, the outer wall of the reinforcing bar 20 is always inserted into the limiting groove 91, which can improve the installation stability of the reinforcing bar 20 during the bending process.

[0028] Furthermore, positioning elements 10 for contacting the ends of the reinforcing bars 20 are installed on both ends of the material rack 21 on the outer wall of the box body 2. The positioning element 10 includes a positioning plate 101, which is slidably disposed on the outer wall of the box body 2 along the length direction of the reinforcing bars 20. A fourth cylinder 102 for driving the positioning plate 101 to move is provided on the outer wall of the box body 2.

[0029] In this embodiment, after the reinforcing bar 20 falls onto the material carrier 21, two fourth cylinders 102 can drive two positioning plates 101 to jointly abut against the end of the reinforcing bar 20 to ensure that the bending part of the reinforcing bar 20 is consistent when the stirrups of the same batch are made.

[0030] The implementation principle of the dual-head rapid bending mechanism in this application embodiment is as follows: After the feeder 1 feeds the reinforcing bar 20 into the mounting cavity 31, the first driving component drives the material support frame 3 to rotate and open the mounting cavity 31, so that the reinforcing bar 20 rolls along the guide plate 4 onto the loading frame 21. Then, the reinforcing bar 20 is moved between the central column head 62 and the loading frame 21. Subsequently, the bending wheel 63 is driven to rotate around the central column head 62 by the bending hoop body 61, so that it can bend the reinforcing bar 20. The bending hoop body 61 can be moved by the second driving component 7 to adjust the bending position of the bending hoop component 6 on the reinforcing bar 20. This has the effect of improving the bending efficiency of the reinforcing bar 20.

[0031] Those skilled in the art will understand that although preferred embodiments of the present invention have been described, those skilled in the art, once they understand the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention. Clearly, those skilled in the art can make various alterations and modifications to the present invention without departing from its spirit and scope. Thus, if these modifications and modifications of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention also intends to include these modifications and modifications.

Claims

1. A double-head rapid bending mechanism, used for installation at the discharge end of a feeder (1), characterized in that: The device includes a housing (2), on one side of the housing (2) near the rebar feeder (1) having an inlet for the rebar (20) to pass through. A support frame (3) is rotatably mounted inside the housing (2) at the inlet. A carrying frame (21) is mounted below the support frame (3) on one side of the housing (2). A guide plate (4) connects the support frame (3) and the carrying frame (21). An installation cavity (31) for accommodating the rebar (20) is formed between the support frame (3) and the guide plate (4). A first driving member is provided inside the housing (2) to drive the support frame (3) to rotate to open / close the installation cavity (31). 2) A bending hoop component (6) for bending the reinforcing bar (20) is provided at the material rack (21). The bending hoop component (6) includes two bending hoop bodies (61) that are slidably arranged on the box body (2) along the length of the reinforcing bar (20). A central column head (62) is provided on the bending hoop body (61) above the material rack (21). A bending wheel (63) is rotatably arranged on the bending hoop body (61) around the central column head (62), and a gap is left between the bending wheel (63) and the central column head (62) for the reinforcing bar (20) to pass through. A second driving member (7) for driving the bending hoop body (61) to move is provided inside the box body (2).

2. The dual-head rapid bending mechanism according to claim 1, characterized in that: The first driving component includes a first cylinder (5), the cylinder body of the first cylinder (5) is rotatably mounted on the housing (2), and a connecting frame (51) is rotatably mounted on the piston rod of the first cylinder (5). The end of the material support frame (3) away from its own rotating shaft is fixedly connected to the connecting frame (51).

3. The dual-head rapid bending mechanism according to claim 1, characterized in that: The second driving component (7) includes a bidirectional screw (71) and a drive motor (72). Two bent hoop bodies (61) are slidably disposed in the housing (2) in opposite directions, and each of the two bent hoop bodies (61) is provided with a mounting plate (64) at its bottom. The two mounting plates (64) are respectively threaded to the two threaded sections of the bidirectional screw (71). The drive motor (72) is disposed in the housing (2), and the output shaft of the drive motor (72) is connected to the bidirectional screw (71) in a transmission connection.

4. The dual-head rapid bending mechanism according to claim 3, characterized in that: The box (2) is also provided with a clamping member (8) for clamping and fixing the reinforcing bar (20). The clamping member (8) includes a base plate (81) and a pressure plate (82). The base plate (81) is slidably disposed on the mounting plate (64) along the central column head (62). The pressure plate (82) is slidably disposed on the base plate (81) along the central column head (62). A slot is left between the pressure plate (82) and the base plate (81) to limit the rolling displacement of the reinforcing bar (20). The box (2) is provided with a second cylinder (811) for driving the base plate (81) to move. The base plate (81) is provided with a third cylinder (821) for driving the pressure plate (82) to move.

5. The dual-head rapid bending mechanism according to claim 1, characterized in that: The bending wheel (63) is provided with an auxiliary component for supporting the reinforcing bar (20). The auxiliary component includes a support rod (9). One end of the support rod (9) is connected to the bending wheel (63), and the outer wall of the other end of the support rod (9) is provided with a limiting groove (91) for accommodating the reinforcing bar (20).

6. The dual-head rapid bending mechanism according to claim 1, characterized in that: The outer wall of the box (2) is provided with positioning elements (10) at both ends of the material rack (21) for contacting the ends of the reinforcing bars (20). The positioning element (10) includes a positioning plate (101). The positioning plate (101) is slidably disposed on the outer wall of the box (2) along the length direction of the reinforcing bars (20). The outer wall of the box (2) is provided with a fourth cylinder (102) for driving the positioning plate (101) to move.

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