A steel bar bending machine for inserting steel mesh

Abstract

The present invention discloses a steel bar bending machine for inserting steel mesh, including a frame, on which a grasping mechanism, an oblique insertion clamping mechanism and a bending mechanism are fixedly installed, the angle between the grasping mechanism and the oblique insertion clamping mechanism is 45°, and the angle between the grasping mechanism and the bending mechanism is 90°. The grasping mechanism can clamp the steel bar using a frame-type electromagnet, and pull the steel bar to a preset position by its own movement; the oblique insertion clamping mechanism has a large rigidity, and can extend into the steel mesh in a 45° direction, so that the steel bar enters the clamping groove, ensuring that the main body does not rotate with the bending of the steel bar during the bending process; the bending mechanism can move perpendicular to the insertion direction of the steel bar, and the steel bar is bent using a fourth drive motor and gears. The present invention can automatically grasp and drag the steel bar, ensuring that the elbow at one end of the steel bar that has been bent is close to the steel mesh; the steel bar is bent using a reduction motor and a gear combination, which is easy to control, more accurate, and safer.

Description

Technical Field

[0001] The invention relates to the field of construction machinery, and in particular to a steel bar bending machine used for inserting steel bar meshes. Background Art

[0002] With the rapid advancement of urbanization, the country needs to build more and more large buildings such as high-rise buildings, railways and bridges. When building large buildings, reinforced concrete structures are inevitably needed. As the main framework of the building, reinforced concrete structures can provide the main support for the building. Before forming a reinforced concrete structure, it is sometimes necessary to weld multiple transverse and longitudinal steel bars into a steel mesh, and then cross the hook bars with elbows at both ends through multiple layers of steel meshes erected on the ground and parallel to each other, and tie them up to obtain a three-dimensional steel frame. At present, steel mesh can be produced through an automated production line, but because the length of the elbow part of the hook bar is greater than the diagonal length of the steel mesh grid, the step of inserting the hook bar and bending the elbow can only be done manually, and a hook bar must be inserted into each grid of the steel mesh, so the labor intensity of the workers is very high; in addition, workers need to climb frequently during the operation, which also brings huge safety hazards. Summary of the invention

[0003] Purpose of the invention: The purpose of the present invention is to provide a steel bar bending machine for inserting steel mesh, which can grab the L-shaped steel bar inserted into the steel mesh through the steel bar insertion machine, and pull the L-shaped steel bar to make the elbow of one end of the L-shaped steel bar close to the steel mesh, and then bend the unbent end to form another elbow; it solves the problem that the current step of inserting hook bars into the steel mesh and bending the elbow can only be done manually, which causes great labor intensity for workers.

[0004] Technical solution: The present invention provides a steel bar bending machine for inserting steel mesh, comprising a frame, on which a grabbing mechanism, an oblique insertion clamping mechanism and a bending mechanism are fixedly installed, wherein the angle between the grabbing mechanism and the oblique insertion clamping mechanism is 45°, and the angle between the grabbing mechanism and the bending mechanism is 90°;

[0005] The gripping mechanism comprises two sets of cylindrical guide rails arranged in parallel, the end of each set of cylindrical guide rails is fixedly connected to the frame through a guide rail fixing seat, the two sets of cylindrical guide rails are slidably connected to a moving frame through a sliding bearing, the moving frame is fixedly connected to an inverted first driving motor, the output shaft of the first driving motor passes through the moving frame and the end of the output shaft of the first driving motor is fixedly provided with a first gear, the first gear is meshed with a first rack, the first rack is fixedly installed on the frame below the moving frame, the moving frame is also fixedly connected to a supporting frame, a frame-type electromagnet is fixedly connected to the vertical edge of the supporting frame, a semicircular top groove is fixedly provided on the end of the electromagnetic push rod of the frame-type electromagnet, a semicircular bottom groove is also fixedly connected to the vertical edge of the supporting frame below the semicircular top groove, and the notch of the semicircular bottom groove corresponds to the notch of the semicircular top groove;

[0006] The oblique insertion clamping mechanism includes a first dovetail guide rail fixedly mounted on the frame, the angle between the first dovetail guide rail and the cylindrical guide rail is 45°, a first dovetail slider is slidably connected to the first dovetail guide rail, a clamping groove is fixedly connected to the end of the first dovetail slider, a side surface of the first dovetail slider is fixedly connected to the second drive motor through a motor bracket, a second gear is fixedly provided at the end of the output shaft of the second drive motor, the second gear is meshed with a second rack, and the second rack is fixedly mounted on the frame below the first dovetail slider;

[0007] The bending mechanism includes a second dovetail guide rail fixedly mounted on the frame, the angle between the second dovetail guide rail and the cylindrical guide rail is 90°, a second dovetail slider is slidably connected to the second dovetail guide rail, the side of the second dovetail slider is fixedly connected to the third drive motor through a motor bracket, a third gear is fixedly arranged at the end of the output shaft of the third drive motor, the third gear is meshed with a third rack, the third rack is fixedly mounted on the frame below the second dovetail slider, a fourth drive motor is fixedly mounted on the second dovetail slider, the fourth drive motor is installed in cooperation with a reducer, a fourth gear is fixedly arranged on the output end of the reducer, a second gear shaft and a third gear shaft are rotatably mounted on the end face of the reducer, a first idler wheel and a second idler wheel are fixedly arranged on the second gear shaft and the third gear shaft, the first idler wheel and the second idler wheel are simultaneously meshed with the fourth gear, the first idler wheel and the second idler wheel are also simultaneously meshed with a steel bar bending gear, the steel bar bending gear is rotatably mounted on the end face of the reducer through the first gear shaft, a bending column is fixedly connected to the end face of the steel bar bending gear, and a gap is provided between the bending column and the first gear shaft for the steel bar to pass through.

[0008] Furthermore, a trumpet-shaped guide cover is fixedly connected to the end of the semicircular bottom groove of the grabbing mechanism away from the support frame, and the minimum diameter of the guide cover is the same as the notch diameter of the semicircular bottom groove. The guide cover has a guiding effect on the grabbing of the steel bars.

[0009] Furthermore, the diameter of the slot of the semicircular bottom slot is the same as the diameter of the slot of the semicircular top slot. When the slot of the semicircular bottom slot and the slot of the semicircular top slot are close to each other, a circular slot is formed between the two slots, and the diameter of the circular slot is adapted to the diameter of the steel bar.

[0010] Furthermore, the first dovetail slider is integrally formed with the clamping groove, and the slot width of the clamping groove is adapted to the diameter of the steel bar.

[0011] Furthermore, the support frame is an L-shaped structure.

[0012] Beneficial effects: The present invention has the following advantages:

[0013] (1) It can automatically grab and drag the L-shaped steel bar to ensure that the elbow of one end of the L-shaped steel bar is close to the steel mesh;

[0014] (2) The steel bar is bent by combining the fourth drive motor and the gear, which is easy to control and has higher precision and is safer than the existing steel bar bending method that requires manual operation;

[0015] (3) The structure is compact, which can avoid spatial interference with the steel mesh. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the present invention;

[0017] Figure 2 It is a schematic diagram of the structure of the grabbing mechanism;

[0018] Figure 3 It is a schematic diagram of the structure of the oblique clamping mechanism;

[0019] Figure 4 is a schematic diagram of the structure of the first dovetail slider;

[0020] Figure 5 It is a schematic diagram of the bending mechanism structure;

[0021] Figure 6 A top view of the present invention when the grabbing mechanism starts to grab the L-shaped steel bar;

[0022] Figure 7 A top view of the present invention when the grabbing mechanism releases the L-shaped steel bar and resets it, and the obliquely inserted clamping mechanism clamps the L-shaped steel bar;

[0023] Figure 8 It is a top view of the present invention when the bending mechanism starts to bend the L-shaped steel bar;

[0024] Fig. 9 The present invention is a top view of the L-shaped steel bar after it has been bent, and the obliquely inserted clamping mechanism and the grasping mechanism are reset. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0026] like Figure 1 As shown, the present invention is a steel bar bending machine for inserting steel mesh, comprising a frame 1, on which a grasping mechanism 2, an oblique insertion clamping mechanism 3 and a bending mechanism 4 are fixedly installed, the angle between the grasping mechanism 2 and the oblique insertion clamping mechanism 3 is 45°, and the angle between the grasping mechanism 2 and the bending mechanism 4 is 90°; the grasping mechanism 2 can clamp the L-shaped steel bar 6 by means of a frame-type electromagnet 209, and pull the L-shaped steel bar 6 to a preset position by its own movement; the oblique insertion clamping mechanism 3 has a large rigidity, and can extend into the steel mesh 5 along a 45° direction, so that the L-shaped steel bar 6 enters the clamping groove 303, ensuring that the L During the bending process of the L-shaped steel bar 6, the main body does not rotate with the bending of the steel bar; the bending mechanism 4 can move perpendicular to the insertion direction of the L-shaped steel bar 6, and the L-shaped steel bar 6 is bent by the fourth driving motor 406 and the gear; it should be noted that the present invention is different from the existing steel bar bending machine, which grabs the L-shaped steel bar 6 inserted into the multi-layer steel mesh 5 through the steel bar insertion machine, and pulls the L-shaped steel bar 6, so that the elbow 61 at one end of the L-shaped steel bar 6 is close to the steel mesh 5, and then the unbent end is bent to produce another elbow, and then the L-shaped steel bar 6 and the steel mesh 5 are bundled to obtain a three-dimensional steel bar frame;

[0027] like Figure 2As shown, the grabbing mechanism 2 includes two groups of cylindrical guide rails 201 arranged in parallel, and the ends of each group of cylindrical guide rails 201 are fixedly connected to the frame 1 through the guide rail fixing seat 202. The two groups of cylindrical guide rails 201 are slidably connected to the moving frame 204 through the sliding bearing 203. The moving frame 204 is fixedly connected with an inverted first driving motor 205. The output shaft of the first driving motor 205 passes through the moving frame 204 and the end of the output shaft of the first driving motor 205 is fixedly provided with a first gear 206. The first gear 206 is meshed with a first rack 207. The first rack 207 is fixedly installed on the frame 1 below the moving frame 204. The moving frame 204 is also fixedly connected with a support frame 208, and the support frame 208 is an L-shaped structure. A frame-type electromagnet 209 is fixedly connected to the vertical edge of the support frame 208. When the frame-type electromagnet 209 is energized, it can drive the electromagnetic push rod inside it to move downward. A semicircular top groove 210 is fixedly provided at the end of the electromagnetic push rod of the frame-type electromagnet 209. A semicircular bottom groove 211 is also fixedly connected to the vertical edge of the support frame 208 located below the semicircular top groove 210. The notch of the semicircular bottom groove 211 corresponds to the notch of the semicircular top groove 210; and the notch diameter of the semicircular bottom groove 211 is the same as the notch diameter of the semicircular top groove 210. When the notch of the semicircular bottom groove 211 and the notch of the semicircular top groove 210 are close to each other, a circular notch is formed between the two notches, and the diameter of the circular notch is adapted to the diameter of the L-shaped steel bar 6.

[0028] At the same time, the end of the semicircular bottom groove 211 of the grabbing mechanism 2 away from the support frame 208 is also fixedly connected with a trumpet-shaped guide cover 212, and the minimum diameter of the guide cover 212 is the same as the notch diameter of the semicircular bottom groove 211. The guide cover 212 has a guiding effect on the grabbing of the L-shaped steel bar 6, making it easier for the L-shaped steel bar 6 to enter the notch of the semicircular bottom groove 211;

[0029] like Figure 3 and Figure 4As shown, the oblique insertion clamping mechanism 3 includes a first dovetail guide rail 301 fixedly mounted on the frame 1, the angle between the first dovetail guide rail 301 and the cylindrical guide rail 201 is 45°, that is, the angle between the running direction of the first dovetail guide rail 301 and the moving direction of the L-shaped steel bar 6 is 45°, the first dovetail slider 302 is slidably connected to the first dovetail guide rail 301, the end of the first dovetail slider 302 is fixedly connected to the clamping groove 303, the first dovetail slider 302 and the clamping groove 303 are integrally formed, so that it has It has greater rigidity, the slot width of the clamping slot 303 is adapted to the diameter of the L-shaped steel bar 6, and the slot direction of the clamping slot 303 is parallel to the movement direction of the L-shaped steel bar 6. The side of the first dovetail slider 302 is fixedly connected to the second drive motor 304 through a motor bracket, and the output shaft end of the second drive motor 304 is fixedly provided with a second gear 305, the second gear 305 is meshed with the second rack 306, and the second rack 306 is fixedly installed on the frame 1 located below the first dovetail slider 302;

[0030] like Figure 5 As shown, the bending mechanism 4 includes a second dovetail guide rail 401 fixedly mounted on the frame 1, the angle between the second dovetail guide rail 401 and the cylindrical guide rail 201 is 90°, that is, the running direction of the second dovetail guide rail 401 is perpendicular to the moving direction of the L-shaped steel bar 6, and a second dovetail slider 402 is slidably connected to the second dovetail guide rail 401, and the side of the second dovetail slider 402 is fixedly connected to the third drive motor 403 through a motor bracket, and a third gear 404 is fixedly provided on the end of the output shaft of the third drive motor 403, and the third gear 404 is meshed with a third rack 405, and the third rack 405 is fixedly mounted on the frame 1 below the second dovetail slider 402, and a fourth drive motor 406 is fixedly mounted on the second dovetail slider 402, and the fourth drive motor 406 cooperates with a reducer 407 Installation, a fourth gear 408 is fixed on the output end of the reducer 407, a second gear shaft 411 and a third gear shaft 412 are rotatably installed on the end surface of the reducer 407, a first idler wheel 413 and a second idler wheel 414 are fixed on the second gear shaft 411 and the third gear shaft 412 respectively, the first idler wheel 413 and the second idler wheel 414 are simultaneously meshed with the fourth gear 408, the first idler wheel 413 and the second idler wheel 414 are also simultaneously meshed with the steel bar bending gear 409, the steel bar bending gear 409 is a fan-shaped gear, the steel bar bending gear 409 is rotatably installed on the end surface of the reducer 407 through the first gear shaft 410, a bending column 415 is fixedly connected to the end surface of the steel bar bending gear 409, and a gap is provided between the bending column 415 and the first gear shaft 410 for the L-shaped steel bar 6 to pass through;

[0031] like Figures 6 to 9As shown, after the L-shaped steel bar 6 is inserted into the multi-layer steel mesh 5 through the steel bar insertion machine, the first drive motor 205 runs, driving the first gear 206 to rotate, and the first gear 206 is meshed with the first rack 207, so that the movable frame 204 moves relative to the L-shaped steel bar 6 to the maximum stroke position, and the maximum stroke position is close to the end of the steel mesh 5. At this time, the unbent end of the L-shaped steel bar 6 is guided by the trumpet-shaped guide cover 212 and enters the notch of the semicircular bottom groove 211. At this time, the frame type electromagnet 209 is started, and the frame type electromagnet 209 drives the electromagnetic push rod inside it to move downward, so that the groove of the semicircular top groove 210 is The opening of the first dovetail slider 302 and the notch of the semicircular bottom groove 211 are close to each other and closed to clamp the L-shaped steel bar 6; then the first drive motor 205 rotates in the opposite direction, drives the movable frame 204 to move in the opposite direction, pulls the L-shaped steel bar 6, and makes the elbow 61 of one end of the L-shaped steel bar close to the steel mesh 5. At this time, the second drive motor 304 runs, driving the first dovetail slider 302 to move in the direction of the L-shaped steel bar 6, and stops moving when the stroke reaches the maximum. At this time, the clamping groove 303 at the end of the first dovetail slider 302 has extended into the steel mesh 5 along the 45° direction, so that the L-shaped steel bar 6 enters the clamping groove 303, ensuring that the main body of the L-shaped steel bar 6 does not rotate with the bending of the steel bar during the bending process;

[0032] Then, the frame type electromagnet 209 is turned off, the L-shaped steel bar 6 is separated from the moving frame 204, and the moving frame 204 continues to move under the drive of the first driving motor 205 until it is reset. At this time, the end of the L-shaped steel bar 6 is already outside the trumpet-shaped guide cover 212, ensuring that there is no interference during bending;

[0033] Next, the third drive motor 403 of the bending mechanism 4 runs to make the second dovetail slider 402 move toward the L-shaped steel bar 6, and stop moving when the stroke reaches the maximum. At this time, the part of the L-shaped steel bar 6 to be bent is located in the gap between the bending column 415 and the first gear shaft 410. Then the fourth drive motor 406 is started, and the movement of its output shaft is transmitted to the steel bar bending gear 409 through the reducer 407, the fourth gear 408, the first idler gear 413 and the second idler gear 414. The steel bar bending gear 409 rotates counterclockwise, and the bending column 415 and the first gear shaft 410 generate a torsional torque on the L-shaped steel bar 6 and bend it; finally, the second drive motor 304 and the third drive motor 403 respectively drive the first dovetail slider 302 and the bending mechanism 4 to move in the opposite direction until they are reset. Then, each gear is reset to prepare for bending the next steel bar.

Claims

1. A steel bar bending machine for inserting steel mesh, comprising a frame, characterized in that: The frame is fixedly mounted with a grasping mechanism, an obliquely inserted clamping mechanism and a bending mechanism, wherein the angle between the grasping mechanism and the obliquely inserted clamping mechanism is 45°, and the angle between the grasping mechanism and the bending mechanism is 90°; The gripping mechanism comprises two sets of cylindrical guide rails arranged in parallel, the end of each set of cylindrical guide rails is fixedly connected to the frame through a guide rail fixing seat, the two sets of cylindrical guide rails are slidably connected to a moving frame through a sliding bearing, the moving frame is fixedly connected to an inverted first driving motor, the output shaft of the first driving motor passes through the moving frame and the end of the output shaft of the first driving motor is fixedly provided with a first gear, the first gear is meshed with a first rack, the first rack is fixedly installed on the frame below the moving frame, the moving frame is also fixedly connected to a supporting frame, a frame-type electromagnet is fixedly connected to the vertical edge of the supporting frame, a semicircular top groove is fixedly provided on the end of the electromagnetic push rod of the frame-type electromagnet, a semicircular bottom groove is also fixedly connected to the vertical edge of the supporting frame below the semicircular top groove, and the notch of the semicircular bottom groove corresponds to the notch of the semicircular top groove; The oblique insertion clamping mechanism includes a first dovetail guide rail fixedly mounted on the frame, the angle between the first dovetail guide rail and the cylindrical guide rail is 45°, a first dovetail slider is slidably connected to the first dovetail guide rail, a clamping groove is fixedly connected to the end of the first dovetail slider, a side surface of the first dovetail slider is fixedly connected to the second drive motor through a motor bracket, a second gear is fixedly provided at the end of the output shaft of the second drive motor, the second gear is meshed with a second rack, and the second rack is fixedly mounted on the frame below the first dovetail slider; The bending mechanism includes a second dovetail guide rail fixedly mounted on the frame, the angle between the second dovetail guide rail and the cylindrical guide rail is 90°, a second dovetail slider is slidably connected to the second dovetail guide rail, the side of the second dovetail slider is fixedly connected to the third drive motor through a motor bracket, a third gear is fixedly provided at the end of the output shaft of the third drive motor, the third gear is meshed with a third rack, the third rack is fixedly mounted on the frame below the second dovetail slider, a fourth drive motor is fixedly mounted on the second dovetail slider, the fourth drive motor is installed in cooperation with a reducer, a fourth gear is fixedly provided on the output end of the reducer, a second gear shaft and a third gear shaft are rotatably mounted on the end face of the reducer, a first idler wheel and a second idler wheel are fixedly provided on the second gear shaft and the third gear shaft, the first idler wheel and the second idler wheel are simultaneously meshed with the fourth gear, the first idler wheel and the second idler wheel are also simultaneously meshed with the steel bar bending gear, the steel bar bending gear is rotatably mounted on the end face of the reducer through the first gear shaft, a bending column is fixedly connected to the end face of the steel bar bending gear, and a gap is provided between the bending column and the first gear shaft for the steel bar to pass through; The end of the semicircular bottom groove of the grabbing mechanism away from the support frame is also fixedly connected with a trumpet-shaped guide cover, and the minimum diameter of the guide cover is the same as the notch diameter of the semicircular bottom groove; The notch diameter of the semicircular bottom groove is the same as the notch diameter of the semicircular top groove. When the notch of the semicircular bottom groove and the notch of the semicircular top groove are close to each other, a circular notch is formed between the two notches, and the diameter of the circular notch is adapted to the diameter of the steel bar.

2. A steel bar bending machine for inserting steel mesh according to claim 1, characterized in that: The first dovetail slider is integrally formed with the clamping groove, and the notch width of the clamping groove is adapted to the diameter of the steel bar.

3. A steel bar bending machine for inserting steel mesh according to claim 1, characterized in that: The support frame is an L-shaped structure.

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