CN112642956A

CN112642956A - Reinforcing bar forming mechanical equipment for building

Info

Publication number: CN112642956A
Application number: CN202011312745.3A
Authority: CN
Inventors: 全林寒
Original assignee: Wenzhou Yutu Machinery Technology Co ltd
Current assignee: Wenzhou Yutu Machinery Technology Co ltd
Priority date: 2020-11-20
Filing date: 2020-11-20
Publication date: 2021-04-13

Abstract

The invention discloses a reinforcing steel bar forming mechanical device for a building, relates to the technical field of building mechanical devices, and solves the problems that an existing hoop bending machine cannot drive a bending block to reset manually, the working efficiency is low, the bending angle of a reinforcing steel bar is inaccurate, and the subsequent construction and supervision and acceptance are influenced. A kind of steel bar shaping mechanical equipment for building, including the bending block; the bending block is inserted outside the four-stage transmission disc. The device is when buckling the reinforcing bar, can buckle through the driving disc of the corresponding angle of drive mechanism, this driving disc buckles the reinforcing bar under gear motor passes through actuating mechanism's drive, buckle the corresponding driving-disc of drive mechanism and lose the transmission relation with gear motor after the reinforcing bar is buckled to required angle, thereby can be stable, accurate buckle the reinforcing bar to required angle, and can continue to rotate under the drive of the effect of human power as the device's the drive mechanism of buckling and reset, and is convenient quick, and high working efficiency.

Description

Reinforcing bar forming mechanical equipment for building

Technical Field

The invention belongs to the technical field of construction machinery equipment, and particularly relates to reinforcement forming machinery equipment for a building.

Background

The reinforcing bar is the essential building materials in the building engineering, and the reinforcing bar generally all obtains required shape in order to reach the design condition through the shaping operation before using, guarantees the quality of building, and the shaping operation of reinforcing bar is accomplished at the building site usually, and at present, the reinforcing bar is bent the shaping time and is made more practical hoop bending machine, and hoop bending machine is a machining tool to the reinforcing bar operation, can better processing become specified angle, model.

If the application number is: in the patent of CN201910514730.6, a device for processing and forming steel bars for buildings is disclosed, which relates to the field of steel bar processing, which mainly solves the problem that labor force is wasted because the reinforcing steel bars need to be carried and loaded manually when the reinforcing steel bars are cut, and the device mainly comprises a base, the base is provided with a steel bar cutting mechanism, a collecting mechanism, a controller, a containing box, a steel bar containing mechanism and a steel bar moving mechanism, when in feeding, the reinforcing steel bar moves out of the containing box from the discharge port under the action of gravity and is intercepted by the intercepting column, the steel bar is turned over the interception column and moves into the movable groove under the action of gravity through the lifting of the first electric telescopic rod, the reinforcing steel bar is driven by the rotating motor to move, the positioning plate is used for positioning, the reinforcing steel bar is fixed by the upper arc-shaped fixing plate and the lower arc-shaped fixing plate, and the reinforcing steel bar is automatically collected after being cut by the cutting machine. The steel bar feeding device has the advantages that steel bars can be automatically fed, the use is convenient, and the working efficiency is improved.

The rotation of the bending block of the existing hoop bending machine is required to be driven to complete in a reciprocating mode through a speed reduction motor, the torque of the speed reduction motor is large, manpower cannot drive the bending block to reset, the speed is low, the working efficiency is reduced, the angle of the bending block of the existing hoop bending machine to the reinforcing steel bar is bent according to working experience through workers, the angle of the bending block of the reinforcing steel bar, which cannot be fine, is limited, the bending angle of the reinforcing steel bar is inaccurate, subsequent construction and supervision and acceptance are influenced, and the practicability is not high.

In view of the above, the present invention provides a mechanical apparatus for forming a reinforcing bar for a building, which is developed and improved in view of the existing structure and defects, so as to achieve the purpose of higher practical value.

Disclosure of Invention

In order to solve the technical problems, the invention provides mechanical equipment for forming a reinforcing steel bar for a building, which aims to solve the problems that the rotation reciprocation of a bending block of the existing hoop bending machine is required to be completed by being driven by a speed reduction motor, the speed reduction motor has large torque, manpower cannot drive the bending block to reset, the speed is slow, the working efficiency is reduced, the bending angle of the existing hoop bending machine for the reinforcing steel bar is bent by workers according to the working experience, the bending angle of the reinforcing steel bar cannot be well limited, the bending angle of the reinforcing steel bar is inaccurate, the subsequent construction and supervision and acceptance are influenced, and the practicability is not high.

The invention relates to a mechanical equipment for forming a reinforcing bar for a building, which is achieved by the following specific technical means:

a kind of steel bar shaping mechanical equipment for building, including the mounting frame, the rail seat, the gear motor, the actuating mechanism, the lifting block, the transmission mechanism of bending, the locating column, the compact heap, the bending block, adjust the pole and control switch; a motor base is screwed and fixed on the top surface of the left side of the bottom of the mounting frame through screws; the rail seat is fixedly connected to the top surface of the right side of the bottom of the mounting frame; the speed reducing motor is screwed and fixed inside the motor base through screws; the driving mechanism consists of a transmission gear and a driving gear; the transmission gear and the driving gear are rotationally connected to a rotating rod of the mounting frame; the transmission gear is in transmission connection with a driving gear at the top of a rotating rod of the speed reducing motor; the lifting block is inserted in the track seat; the interior of the lifting block is fixedly connected with the top end of an electric push rod, and the bottom end of the electric push rod is fixedly connected with the bottom surface of the interior of the rail seat; the bending transmission mechanism consists of a primary transmission disc, a secondary transmission disc, a tertiary transmission disc, a quaternary transmission disc and a fixed sleeve; the primary transmission disc, the secondary transmission disc, the tertiary transmission disc and the quaternary transmission disc are sequentially and fixedly connected to the outer part of the fixed sleeve from bottom to top; the fixed sleeve is rotatably connected to the outside of the positioning rod at the top of the lifting block; the positioning column is screwed and fixed at the top of the positioning rod through threads and penetrates through the top surface of the mounting frame; the pressing block is inserted into the top surface of the mounting frame; the bending block is inserted outside the four-stage transmission disc; the adjusting rod is inserted into the side face of the mounting frame and screwed to the bottom of the block body of the pressing block through the threads of the rod body; the control switch is screwed and fixed on one side of the top surface of the mounting frame through screws, and the control switch is electrically connected with an external power supply and a speed reduction motor.

Further, the disk body side of one-level driving dish, second grade driving dish, tertiary driving dish and level four driving dish is convex design, and the side of one-level driving dish, second grade driving dish, tertiary driving dish and level four driving dish all is equipped with the driving rack, and one-level driving dish, second grade driving dish, tertiary driving dish and level four driving dish side are equipped with the curved angle of driving rack part and are thirty degrees, forty-five degrees, ninety degrees and one hundred eighty degrees respectively.

Further, the interval between one-level driving dish, second grade driving dish, tertiary driving dish and the level four driving dish disk body is the same, and the interval between one-level driving dish, second grade driving dish, tertiary driving dish and the level four driving dish disk body is greater than the thickness of driving gear side teeth of a cogwheel.

Furthermore, the length of elevator top locating lever is the same with fixed sleeve's length, and fixed sleeve rotates to be connected in the outside of locating lever, and the bottom of locating lever is equipped with the linkage clamping ring, and the linkage clamping ring is located fixed sleeve's top.

Furthermore, the bottom of elevator is equipped with the track piece all around, and the cross sectional shape of track piece is "T" shape design, and the inside of track seat is equipped with the constant head tank, and the track piece is pegged graft in the inside of constant head tank.

Furthermore, the inside of drive gear is equipped with one-way draw-in groove, and the bottom of drive gear is equipped with the one-way drive wheel, and one-way drive wheel fixed connection is in the inside of one-way draw-in groove at the bottom one-way drive wheel rotation of drive gear.

Furthermore, the shape of the single clamping groove of the one-way clamping groove is triangular, the triangular one-way latch is arranged inside the one-way transmission wheel, the one-way latch is inserted into the one-way transmission wheel, the reset top spring is arranged at the bottom of the one-way latch, and two ends of the reset top spring are respectively and fixedly connected to the bottom of the one-way latch and the inside of the one-way transmission wheel.

Compared with the prior art, the invention has the following beneficial effects:

the device is when buckling the reinforcing bar, can be through the driving disc of the corresponding angle of drive mechanism of buckling, this driving disc buckles the reinforcing bar under gear motor passes through actuating mechanism's drive, buckle the corresponding driving-disc of drive mechanism and lose the transmission relation with gear motor after the reinforcing bar is buckled to required angle, thereby can be stable, accurate buckle the reinforcing bar to required angle, and buckle drive mechanism's transmission discs at different levels when the device is buckled and is continued when rotating in the people for stirring, one-way drive wheel no longer with drive gear joint transmission, the drive mechanism of buckling can continue to rotate under the drive of the effect of manpower and reset, and is convenient quick, the stability and the practicality of the device have been improved.

Firstly, the device is when buckling the reinforcing bar, according to the angle of buckling that the reinforcing bar needs, select the driving disc of the corresponding angle of the drive mechanism of buckling, make the teeth of a cogwheel of corresponding driving disc and the teeth of a cogwheel interlock of drive gear through the inside electric putter of control elevator, put into the top of device with the reinforcing bar, switch on gear motor's power, gear motor is when forward rotating, gear motor top initiative gear wheel gear drives drive gear and rotates, one-way latch joint drives drive gear and rotates in drive gear's one-way draw-in groove, thereby drive the driving disc of the drive mechanism of buckling and buckle the reinforcing bar, after buckling the required angle, corresponding driving disc loses the interlock with the drive gear teeth of a cogwheel, thereby can not continue to buckle the reinforcing bar, the accuracy of the angle of buckling of reinforcing bar has been guaranteed, the practicality and the flexibility of device have been.

Secondly, the design that the interval between the drive plate disk body of the drive mechanism of buckling is greater than the thickness of the teeth of a cogwheel of drive gear side makes drive gear can only interlock with the teeth of a cogwheel of a drive plate side of a drive mechanism of buckling at every turn, can not appear drive gear and the tooth of a cogwheel interlock of a plurality of drive mechanism's of buckling side and cause the spacing phenomenon of failing to the reinforcing bar angle of buckling, has improved the stability of the device.

Furthermore, when the device needs to restore to the throne the driving plate of the transmission mechanism that will buckle and continue to buckle the reinforcing bar, only need extract the artificial transmission mechanism that buckles that stirs of the piece of buckling and can drive the transmission plate of the transmission mechanism that buckles and restore to the throne, when stirring the transmission plate of the transmission mechanism that buckles, because one-way latch and one-way draw-in groove are triangle-shaped's design, one-way latch loses the joint relation with one-way draw-in groove when the transmission mechanism that buckles continues to rotate, thereby can not be hindered by drive gear's high torque power through gear motor when making drive gear continue to rotate, thereby make the transmission plate of the transmission mechanism that buckles can freely continue to rotate and restore to the throne the reinforcing bar and buckle, and is convenient and fast.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic view of the rear side of fig. 1 according to the present invention.

Fig. 3 is a schematic view of the construction of the mounting frame of the present invention.

Fig. 4 is a schematic structural diagram of the positioning column and the lifting block of the invention.

Fig. 5 is a schematic structural diagram of the bending transmission mechanism of the invention.

Fig. 6 is a schematic view of the internal structure of the drive mechanism of the present invention after disassembly.

Fig. 7 is a schematic structural view of the reinforcing bar bent by ninety degrees using the three-stage driving disc according to the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a mounting frame; 2. a motor base; 3. a rail seat; 4. a reduction motor; 5. a drive mechanism; 6. a lifting block; 7. a bending transmission mechanism; 8. a positioning column; 9. a compression block; 10. a bending block; 11. adjusting a rod; 12. a control switch; 301. positioning a groove; 501. a transmission gear; 502. a drive gear; 5011. a one-way card slot; 5021. a one-way transmission wheel; 5022. one-way latch; 601. positioning a rod; 602. an electric push rod; 603. a track block; 701. a primary drive plate; 702. a secondary transmission disc; 703. a third-stage transmission disc; 704. a four-stage transmission disc; 705. fixing the sleeve; 801. and (5) linking the pressure ring.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in figures 1 to 7:

the invention provides a mechanical equipment for forming a reinforcing steel bar for a building, which comprises an installation frame 1, a track seat 3, a speed reducing motor 4, a driving mechanism 5, a lifting block 6, a bending transmission mechanism 7, a positioning column 8, a pressing block 9, a bending block 10, an adjusting rod 11 and a control switch 12, wherein the track seat is provided with a track; a motor base 2 is screwed and fixed on the top surface of the left side of the bottom of the mounting frame 1 through screws; the rail seat 3 is fixedly connected to the top surface of the right side of the bottom of the mounting frame 1; the speed reducing motor 4 is screwed and fixed inside the motor base 2 through screws; the driving mechanism 5 consists of a transmission gear 501 and a driving gear 502; the transmission gear 501 and the driving gear 502 are rotationally connected to a rotating rod of the mounting frame 1; the transmission gear 501 is in transmission connection with a driving gear at the top of a rotating rod of the gear motor 4; the one-way clamping groove 5011 is formed in the transmission gear 501, the one-way transmission wheel 5021 is arranged at the bottom of the driving gear 502, the one-way transmission wheel 5021 is fixedly connected to the bottom of the driving gear 502, and is rotatably connected to the inside of the one-way clamping groove 5011; the lifting block 6 is inserted in the track seat 3; the lifting block 6 is fixedly connected with the top end of an electric push rod 602, and the bottom end of the electric push rod 602 is fixedly connected with the bottom surface inside the track seat 3; the length of a positioning rod 601 at the top of the lifting block 6 is the same as that of a fixing sleeve 705, the fixing sleeve 705 is rotatably connected to the outside of the positioning rod 601, a linkage pressing ring 801 is arranged at the bottom of the positioning column 8, and the linkage pressing ring 801 is positioned at the top of the fixing sleeve 705; the periphery of the bottom of the lifting block 6 is provided with the track block 603, the cross section of the track block 603 is in a T-shaped design, the positioning groove 301 is formed in the track seat 3, and the track block 603 is inserted in the positioning groove 301, so that the lifting block 6 cannot be skewed and twisted during lifting, the meshing of each stage of transmission disc of the bending transmission mechanism 7 with the gear teeth of the driving gear 502 after adjustment is ensured, and the stability of the device is improved; the bending transmission mechanism 7 consists of a primary transmission disc 701, a secondary transmission disc 702, a tertiary transmission disc 703, a quaternary transmission disc 704 and a fixed sleeve 705; the primary transmission disc 701, the secondary transmission disc 702, the tertiary transmission disc 703 and the quaternary transmission disc 704 are sequentially and fixedly connected to the outside of the fixed sleeve 705 from bottom to top; the fixed sleeve 705 is rotatably connected to the outside of the positioning rod 601 at the top of the lifting block 6; the positioning column 8 is screwed and fixed on the top of the positioning rod 601 through threads, and the positioning column 8 penetrates through the top surface of the mounting frame 1; the pressing block 9 is inserted into the top surface of the mounting frame 1; the bending block 10 is inserted outside the four-stage transmission disc 704; the adjusting rod 11 is inserted into the side surface of the mounting frame 1, and the adjusting rod 11 is screwed at the bottom of the block body of the pressing block 9 through the screw thread of the rod body; control switch 12 connects fixedly through the screw spiral in one side of installation frame 1 top surface, and control switch 12 and external power source, gear motor 4 electric connection, and its concrete structure and theory of operation are current mature technology, do not describe here tiredly.

Wherein, the side surfaces of the first-stage driving disk 701, the second-stage driving disk 702, the third-stage driving disk 703 and the fourth-stage driving disk 704 are designed into circular arc shapes, and the sides of the first-stage transmission disk 701, the second-stage transmission disk 702, the third-stage transmission disk 703 and the fourth-stage transmission disk 704 are all provided with transmission racks, the arc-shaped angles of the transmission rack parts arranged on the sides of the first-stage transmission disk 701, the second-stage transmission disk 702, the third-stage transmission disk 703 and the fourth-stage transmission disk 704 are respectively thirty degrees, forty-five degrees, ninety degrees and one hundred eighty degrees, so that the device can limit the bending angle required by the steel bar through the transmission discs of the bending transmission mechanisms 7 with different angles, when the reinforcing steel bars are bent to a required angle, the corresponding transmission discs lose the occlusion with the gear teeth of the driving gear 502, therefore, the steel bar can not be bent continuously, the accuracy of the bending angle of the steel bar is ensured, and the practicability and flexibility of the device are improved.

Wherein, the interval between one-level driving dish 701, second grade driving dish 702, tertiary driving dish 703 and the level four driving dish 704 disk body is the same, and one-level driving dish 701, second grade driving dish 702, interval between tertiary driving dish 703 and the level four driving dish 704 disk body is greater than the thickness of the drive gear 502 side teeth of a cogwheel, this design makes drive gear 502 can only interlock with the teeth of a cogwheel of a driving dish side of the drive mechanism 7 of buckling at every turn, drive gear 502 can not appear and the teeth of a cogwheel interlock of the driving dish side of a plurality of drive mechanism 7 of buckling causes the phenomenon of the spacing inefficacy of angle of buckling to the reinforcing bar, the stability of the device has.

Wherein, the shape of single card slot of unidirectional card slot 5011 is triangle, the inside of unidirectional driving wheel 5021 has triangular unidirectional latch 5022, and unidirectional latch 5022 is inserted inside unidirectional driving wheel 5021, the bottom of unidirectional latch 5022 has a reset top spring, and the two ends of the reset top spring are fixedly connected to the bottom of unidirectional latch 5022 and the inside of unidirectional driving wheel 5021 respectively, the design is such that when the gear motor 4 rotates forward, the driving gear at the top of the gear motor 4 drives the transmission gear 501 to rotate, the unidirectional latch 5022 is clamped in the unidirectional card slot 5011 of the transmission gear 501 to drive the drive gear 502 to rotate, thereby driving the transmission disc of the bending transmission mechanism 7 to bend the steel bar, when the gear needs to be reset after the bending is completed, when the transmission disc of the bending transmission mechanism 7 is manually pushed to continue to rotate for resetting, when the transmission disc of the bending transmission mechanism 7 is rotated, because one-way latch 5022 and one-way draw-in groove 5011 are the design of triangle-shaped, one-way latch 5022 loses the joint relation with one-way draw-in groove 5011 when continuing to rotate to can not be hindered by gear motor 4's high torque power when making drive gear 502 continue to rotate, thereby make the driving disc of the drive mechanism 7 of buckling freely continue to rotate to reset and continue to buckle the reinforcing bar, and is convenient quick, has improved the flexibility and the work efficiency of the device.

The specific use mode and function of the embodiment are as follows:

according to the invention, according to the bending angle of the steel bar, a proper transmission disc of the bending transmission mechanism 7 is selected to be meshed with the gear teeth of the driving gear 502, the electric push rod 602 is controlled by the control switch 12 to drive the lifting block 6 to lift, when the lifting block 6 lifts, the whole bending transmission mechanism 7 can be driven to move up and down through the linkage press ring 801, so that the transmission effect of different transmission discs of the driving gear 502 and the bending transmission mechanism 7 is changed, the purpose of limiting the bending angle of the steel bar is realized, the lifting block 6 cannot be skewed or twisted when lifting due to the design of the track block 603, the driving gear 502 can be meshed with the gear teeth of the driving gear 502 after being adjusted by all levels of the transmission discs of the bending transmission mechanism 7, and the design that the distance between the disc bodies of the first-level transmission disc 701, the second-level transmission disc 702, the third-level transmission disc 703 and the fourth-level transmission disc 704 is larger than The gear teeth on the side surface of the movable disc are meshed, the phenomenon that the limit failure of the bending angle of the reinforcing steel bar is caused by the meshing of the driving gear 502 and the gear teeth on the side surface of the transmission discs of the bending transmission mechanisms 7 can be avoided, the design that the arc-shaped angles of the transmission rack parts arranged on the side surfaces of the first-stage transmission disc 701, the second-stage transmission disc 702, the third-stage transmission disc 703 and the fourth-stage transmission disc 704 are thirty degrees, forty-five degrees, ninety degrees and one-hundred-eighty degrees respectively enables the device to limit the required bending angle of the reinforcing steel bar through the transmission discs of the bending transmission mechanisms 7 with different angles, then the reinforcing steel bar is placed between the top positioning column 8, the pressing block 9 and the bending block 10, then the reinforcing steel bar is pressed and fixed through the rotating pressing block 9, the power supply of the speed reduction motor 4 is started through the, the unidirectional latch 5022 is clamped in the unidirectional slot 5011 of the transmission gear 501 to drive the drive gear 502 to rotate, so that the transmission disc of the bending transmission mechanism 7 is driven to rotate to bend the steel bar, when the steel bar is bent to a required angle, the corresponding transmission disc loses the occlusion with the gear teeth of the drive gear 502, so that the steel bar cannot be bent continuously, and the accuracy of the bending angle of the steel bar is ensured, after the bending of the group of steel bars is finished, the steel bar is taken down to reset the bending transmission mechanism 7 to continuously bend other steel bars, the bending block 10 is pulled out to stir the bending transmission mechanism 7 to rotate continuously, because the unidirectional latch 5022 and the unidirectional slot 5011 are triangular, the unidirectional latch 5022 loses the clamping relation with the unidirectional slot 5011 when the unidirectional latch 5022 rotates continuously, so that the drive gear 502 cannot be blocked by the high torque force of the speed reduction motor 4 when the driving gear 502 rotates continuously, so that the transmission disc of the bending transmission mechanism 7 can reset quickly, is convenient and quick.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. The utility model provides a reinforcing bar shaping mechanical equipment for building which characterized in that: the device comprises an installation frame (1), a track seat (3), a speed reducing motor (4), a driving mechanism (5), a lifting block (6), a bending transmission mechanism (7), a positioning column (8), a pressing block (9), a bending block (10), an adjusting rod (11) and a control switch (12); a motor base (2) is screwed and fixed on the top surface of the left side of the bottom of the mounting frame (1) through screws; the rail seat (3) is fixedly connected to the top surface of the right side of the bottom of the mounting frame (1); the speed reducing motor (4) is screwed and fixed inside the motor base (2) through screws; the driving mechanism (5) consists of a transmission gear (501) and a driving gear (502); the transmission gear (501) and the driving gear (502) are rotationally connected to a rotating rod of the mounting frame (1); the transmission gear (501) is in transmission connection with a driving gear at the top of a rotating rod of the speed reducing motor (4); the lifting block (6) is inserted in the track seat (3); the top end of an electric push rod (602) is fixedly connected inside the lifting block (6), and the bottom end of the electric push rod (602) is fixedly connected to the bottom surface inside the track seat (3); the bending transmission mechanism (7) consists of a primary transmission disc (701), a secondary transmission disc (702), a tertiary transmission disc (703), a quaternary transmission disc (704) and a fixed sleeve (705); the primary transmission disc (701), the secondary transmission disc (702), the tertiary transmission disc (703) and the quaternary transmission disc (704) are sequentially and fixedly connected to the outer part of the fixed sleeve (705) from bottom to top; the fixed sleeve (705) is rotatably connected to the outer part of the positioning rod (601) at the top of the lifting block (6); the positioning column (8) is screwed and fixed at the top of the positioning rod (601) through threads, and the positioning column (8) penetrates through the top surface of the mounting frame (1); the pressing block (9) is inserted into the top surface of the mounting frame (1); the bending block (10) is inserted outside the four-stage transmission disc (704); the adjusting rod (11) is inserted into the side face of the mounting frame (1), and the adjusting rod (11) is screwed to the bottom of the block body of the pressing block (9) through the screw thread of the rod body; the control switch (12) is screwed and fixed on one side of the top surface of the installation frame (1) through screws, and the control switch (12) is electrically connected with an external power supply and the speed reducing motor (4).

2. The reinforcing bar molding machine for construction as claimed in claim 1, wherein: the side face of the disc body of the first-stage transmission disc (701), the second-stage transmission disc (702), the third-stage transmission disc (703) and the fourth-stage transmission disc (704) is designed in a circular arc shape, transmission racks are arranged on the side faces of the first-stage transmission disc (701), the second-stage transmission disc (702), the third-stage transmission disc (703) and the fourth-stage transmission disc (704), and the side faces of the first-stage transmission disc (701), the second-stage transmission disc (702), the third-stage transmission disc (703) and the fourth-stage transmission disc (704) are provided with arc-shaped angles of transmission rack parts, namely thirty degrees, forty-five degrees, ninety degrees and one-.

3. The reinforcing bar molding machine for construction as claimed in claim 1, wherein: the interval between one-level driving dish (701), second grade driving dish (702), tertiary driving dish (703) and level four driving dish (704) disk body is the same, and the interval between one-level driving dish (701), second grade driving dish (702), tertiary driving dish (703) and level four driving dish (704) disk body is greater than the thickness of drive gear (502) side teeth of a cogwheel.

4. The reinforcing bar molding machine for construction as claimed in claim 1, wherein: the length of lifting block (6) top locating lever (601) is the same with the length of fixed sleeve (705), and fixed sleeve (705) rotate to be connected in the outside of locating lever (601), and the bottom of reference column (8) is equipped with linkage clamping ring (801), and linkage clamping ring (801) are located the top of fixed sleeve (705).

5. The reinforcing bar molding machine for construction as claimed in claim 1, wherein: the bottom of elevator block (6) is equipped with track piece (603) all around, and the cross sectional shape of track piece (603) is "T" shape design, and the inside of track seat (3) is equipped with constant head tank (301), and the inside at constant head tank (301) is pegged graft in track piece (603).

6. The reinforcing bar molding machine for construction as claimed in claim 1, wherein: one-way clamping grooves (5011) are formed in the transmission gears (501), one-way transmission wheels (5021) are arranged at the bottoms of the driving gears (502), and the one-way transmission wheels (5021) are fixedly connected to the bottom of the driving gears (502) and are rotatably connected to the insides of the one-way clamping grooves (5011).

7. The reinforcing bar forming machine for construction as claimed in claim 6, wherein: the shape of a single clamping groove of the unidirectional clamping groove (5011) is triangular, a triangular unidirectional latch (5022) is arranged inside the unidirectional transmission wheel (5021), the unidirectional latch (5022) is inserted inside the unidirectional transmission wheel (5021), a reset top spring is arranged at the bottom of the unidirectional latch (5022), and two ends of the reset top spring are fixedly connected to the bottom of the unidirectional latch (5022) and the inside of the unidirectional transmission wheel (5021) respectively.