CN113510202A

CN113510202A - Clamping mechanism and reinforcing steel bar bending equipment

Info

Publication number: CN113510202A
Application number: CN202110509978.0A
Authority: CN
Inventors: 罗文龙; 汶浩; 姚金柯; 余有存; 陈晓峰; 王海峰
Original assignee: Beijing Building Mechanization Research Institute Co ltd
Current assignee: Beijing Building Mechanization Research Institute Co ltd
Priority date: 2021-05-11
Filing date: 2021-05-11
Publication date: 2021-10-19

Abstract

The invention discloses a clamping mechanism and a reinforcing steel bar bending device, wherein the clamping mechanism comprises: the plate frame is connected to the frame in a sliding mode and comprises a bottom plate and a vertical plate fixedly connected with the bottom plate, and the steel bars run on the bottom plate; the swinging block is pivoted on the vertical plate, presses the steel bar against the bottom plate through rotation to enable the clamping mechanism to be switched to a clamping state, and is separated from the steel bar through reverse rotation to enable the clamping mechanism to be switched to a releasing state; and the driving part is used for driving the swinging block to rotate in a reciprocating manner.

Description

Clamping mechanism and reinforcing steel bar bending equipment

Technical Field

The invention relates to the technical field of bending equipment, in particular to a clamping mechanism and reinforcing steel bar bending equipment.

Background

The reinforcing bar bending equipment is used for processing reinforcing bars into a reciprocating bending state, and the type of the equipment for bending the reinforcing bars in the prior art is not few, however, the equipment in the prior art has the following defects when the reinforcing bars are bent:

1. the forming mechanism in the device is subjected to various resistances which are not beneficial to forming the reinforcing steel bar in the process of bending the reinforcing steel bar, and the reasons for the resistances are related to the structure of the forming mechanism, the structures of other functional mechanisms (components) except the forming mechanism, the matching of the forming mechanism and other functional mechanisms and the like.

2. Because of the various resistances which are not beneficial to the forming of the reinforcing steel bar, the reinforcing steel bar cannot be bent to form naturally, for example, the reinforcing steel bar may be stretched in the bending process.

3. The equipment is provided with a plurality of power sources for respectively driving different functional mechanisms (components), and the self action and the action matching relation of the functional mechanisms (components) are controlled by different electronic modules such as a detection module, a control module and the like of a sensor, a controller and the like, so that the equipment manufacturing and forming and the energy consumption of the equipment are increased, and the difficulty in controlling the operation of the equipment is increased.

4. The electronic module is used for controlling each functional mechanism (component), and the defect that the control is unreliable exists.

Disclosure of Invention

In order to solve the technical problems in the prior art, embodiments of the present invention provide a clamping mechanism and a steel bar bending apparatus.

In order to solve the technical problem, the embodiment of the invention adopts the following technical scheme:

a clamping mechanism comprising:

the plate frame is connected to the frame in a sliding mode and comprises a bottom plate and a vertical plate fixedly connected with the bottom plate, and the steel bars run on the bottom plate;

the swinging block is pivoted on the vertical plate, presses the steel bar against the bottom plate through rotation to enable the clamping mechanism to be switched to a clamping state, and is separated from the steel bar through reverse rotation to enable the clamping mechanism to be switched to a releasing state;

and the driving part is used for driving the swinging block to rotate in a reciprocating manner.

Preferably, the driving part is a cylinder pivotally connected to the vertical plate, and a head of a piston rod of the cylinder is pivotally connected to the swing block.

Preferably, the end part of the bottom plate is provided with a guide block, the guide block is provided with a limiting hole, and the reinforcing steel bar penetrates through the limiting hole.

The invention also discloses a reinforcing steel bar bending device, which comprises:

a frame;

a driving mechanism mounted on the frame

The top pressing forming mechanism is provided with a top plate, and the top plate is driven by the driving mechanism and is used for pressing the reinforcing steel bars above the top plate so as to bend and form the reinforcing steel bars;

the pressing mechanism is positioned behind a top plate of the top pressing forming mechanism along the conveying direction of the steel bars, and has a locking state for limiting the movement of the steel bars behind the top plate in the conveying direction and a releasing state for releasing the limitation on the movement of the steel bars in the conveying direction;

the clamping mechanism of any one of claims 1 to 3; wherein:

before the top plate moves upwards to press the reinforcing steel bars to bend the reinforcing steel bars, the clamping mechanism is switched to a clamping state, and the pressing mechanism is switched to a locking state;

after the top plate completes bending and forming of the reinforcing steel bars, the clamping mechanism is switched to a release state, and the pressing mechanism is switched to the release state.

Preferably, the steel bar bending equipment further comprises a linkage mechanism, wherein the linkage mechanism comprises a first transmission mechanism and a second transmission mechanism; the first transmission mechanism and the second transmission mechanism are both driven by the driving mechanism; wherein:

after the top plate is driven by the driving mechanism to move downwards to the position below the unbent reinforcing steel bars, the first transmission mechanism is used for enabling the top plate to move towards the direction opposite to the conveying direction of the reinforcing steel bars;

the second transmission mechanism is used for driving the clamping mechanism to switch between a locking state and a releasing state.

Preferably, the drive mechanism comprises a rotary drive member, a drive shaft connected to an output of the rotary drive member;

the first transmission mechanism comprises a first gear part arranged on the transmission shaft and a first toothed plate part capable of reciprocating and linearly moving in the conveying direction and the reverse direction of the reinforcing steel bar; the first toothed plate component is provided with two racks which are parallel and oppositely arranged, and a local tooth section is arranged on the periphery of the first gear component; the first gear part rotates through the transmission shaft, so that partial tooth sections of the first gear part are sequentially meshed with the two racks of the first toothed plate part, and the first toothed plate part is driven to do reciprocating linear motion; wherein:

the first toothed plate component is provided with a push plate, and after the top plate moves downwards to the position below the unbent reinforcing steel bars, the first toothed plate component drives the push plate to push the top plate to move towards the direction opposite to the conveying direction of the reinforcing steel bars.

Preferably, the linkage mechanism further comprises a third transmission mechanism;

the third transmission mechanism includes:

the first vertical guide plate is connected to the frame in a sliding mode and can slide along the conveying direction and the reverse direction of the steel bars, and a vertically extending guide groove is formed in the first vertical guide plate; the top plate is in sliding connection with the first vertical guide plate by virtue of a pin shaft penetrating through the guide groove, and a row transmission gear is arranged on the first vertical guide plate;

a first rack member mounted on the frame;

the second rack part is arranged in parallel and opposite to the first rack part and is connected to the clamping mechanism; wherein:

the transmission gear is meshed with the first rack part and the second rack part;

when the top plate moves towards the reverse direction of the conveying direction of the steel bars, the transmission gear is meshed with the first rack part and the second rack part to drive the second rack part so as to drive the clamping mechanism to move towards the reverse direction of the conveying direction;

when the top plate moves towards the conveying direction of the steel bars, the transmission gear is meshed with the first rack part and the second rack part to drive the second rack part so as to drive the clamping mechanism to move towards the conveying direction.

Preferably, a second vertical guide plate is fixedly arranged on the second rack component, a vertically extending guide groove is formed in the second vertical guide plate, a pin shaft is fixed on the plate frame, and the pin shaft on the plate frame penetrates through the guide groove.

Preferably, magnetic damping parts are arranged on two sides of the movement direction of the second rack-and-pinion component.

Preferably, the pressing mechanism includes:

the tail part of the pitching arm is pivoted on the frame, the head part of the pitching arm is provided with a pressure head, and the pitching arm presses the local part of the reinforcing steel bar against the frame through the pitching motion so as to limit the movement of the reinforcing steel bar in the conveying direction; the pitching arm enables the pressure head to be far away from the steel bar through the pitching motion so as to remove the limitation on the steel bar;

the driving frame is internally provided with a guide groove, the pitching arm penetrates through the guide groove, and the groove wall of the guide groove is provided with a section of wedge-shaped surface; wherein:

the driving block of the second transmission mechanism moves in a reciprocating linear mode in the conveying direction and the reverse direction of the steel bars, the pitching arm is forced to perform pitching motion through the wedge-shaped surface, and the pressing mechanism is switched between a locking state of limiting the movement of the steel bars and a releasing state of releasing the limitation on the steel bars.

Compared with the prior art, the clamping mechanism and the steel bar bending equipment provided by the invention have the beneficial effects that:

1. the top plate of the top pressing forming mechanism is not limited in the conveying direction of the steel bars while moving upwards, so that the steel bars are subjected to less force except for bending in the process of bending and forming the steel bars by the top plate.

2. The clamping mechanism is not limited in the conveying direction of the steel bars, and the clamping mechanism slides along with the bending process of the steel bars in applicability, so that the pulling force for bending the steel bars is less obstructed.

3. In the process of bending the reinforcing steel bars, the positions of the top plate in the conveying direction are determined with the positions of the clamping mechanisms in the conveying direction, and therefore the shapes of the bent reinforcing steel bars are determined.

4. The pressing mechanism enables the final forming position of the steel bar bending to be determined by locking the steel bar behind the top plate.

5. The hold-down mechanism locks and releases the reinforcing steel bar by means of the swing of the pitching arm, and after the reinforcing steel bar is released, the pitching arm cannot interfere the conveying of the bent and molded reinforcing steel bar.

6. The driving mechanism drives the top plate, the pressing mechanism and the clamping mechanism to move by means of the crank connecting rod connected to the same transmission shaft and the linkage mechanism comprising the three transmission mechanisms, so that different mechanisms or parts are prevented from being driven by different driving mechanisms respectively, energy consumption can be reduced, the action time of different mechanisms is prevented from being controlled by an electronic control module, the control difficulty is reduced, and the control reliability is improved.

7. The transmission of two pairs of gear parts and the toothed plate part is utilized, so that the transmission shaft only rotates in the same direction, the toothed plate part can drive related functional parts to realize reciprocating linear motion, and the design is ingenious.

The summary of various implementations or examples of the technology described in this disclosure is not a comprehensive disclosure of the full scope or all features of the disclosed technology.

Drawings

In the drawings, which are not necessarily drawn to scale, like reference numerals may describe similar components in different views. Like reference numerals having letter suffixes or different letter suffixes may represent different instances of similar components. The drawings illustrate various embodiments, by way of example and not by way of limitation, and together with the description and claims, serve to explain the inventive embodiments. The same reference numbers will be used throughout the drawings to refer to the same or like parts, where appropriate. Such embodiments are illustrative, and are not intended to be exhaustive or exclusive embodiments of the present apparatus or method.

Fig. 1 is a perspective view of a reinforcing bar bending apparatus according to an embodiment of the present invention (the top plate is raised to the highest point).

Fig. 2 is a schematic perspective view of another perspective view of the reinforcing bar bending apparatus according to the embodiment of the present invention (the top plate is raised to the highest point).

Fig. 3 is a schematic perspective view of another view angle of the reinforcing bar bending apparatus according to the embodiment of the present invention (the top plate is raised to the highest point).

Fig. 4 is an enlarged view of a portion B of fig. 3.

Fig. 5 is a perspective view of another perspective view of the reinforcing bar bending apparatus according to the embodiment of the present invention (with the frame hidden and the top plate raised to the highest point).

Fig. 6 is a schematic perspective view of a top press molding mechanism according to an embodiment of the present invention.

Fig. 7 is a schematic structural diagram of a linkage mechanism in a reinforcing bar bending apparatus according to an embodiment of the present invention.

Fig. 8 is a view showing a state where the top plate of the reinforcing bar bending apparatus according to the embodiment of the present invention bends the reinforcing bars (the top plate is raised to the highest point).

Fig. 9 is a view showing a state in which a top plate of the reinforcing bar bending apparatus according to the embodiment of the present invention is lowered.

Fig. 10 is a view showing a state where the top plate and the clamping mechanism of the reinforcing bar bending apparatus according to the embodiment of the present invention are moved to the extreme position in the reverse direction of the conveying direction.

Reference numerals:

10-a top pressing forming mechanism; 11-a top plate; 12-a movable seat board; 13-a base plate; 14-a crank link; 15-a first vertical guide plate; 151-first guide groove; 20-a pressing mechanism; 21-a pitch arm; 22-a drive frame; 221-a guide groove; 23-a limiting block; 241-pulling a rope; 242-weight dropper; 30-a clamping mechanism; 31-a plate frame; 311-a backplane; 3111-a limit groove; 312-a vertical plate; 32-a swing block; 33-a cylinder; 34-a guide block; 341-a limiting hole; 41-a first transmission mechanism; 411-first gear member; 412-a first toothed plate member; 42-a second transmission mechanism; 421-second gear component; 422-second toothed plate member; 43-a third transmission mechanism; 431-a first rack member; 432-a second rack member; 433-a transmission gear; 434-a second vertical guide plate; 4341-second guide groove; 44-an adjustment mechanism; 441-push plate; 50-a frame; 51-a limiting plate; 60-a drive mechanism; 61-an electric motor; 62-a gearbox; 63-a transmission shaft; 70-a magnetic damping member; 100-steel bar.

Detailed Description

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

To maintain the following description of the embodiments of the present invention clear and concise, a detailed description of known functions and known components of the invention have been omitted.

As shown in fig. 1 to 10, an embodiment of the present invention discloses a reinforcing bar bending apparatus, and a top press forming mechanism 10, a pressing mechanism 20, and a clamping mechanism 30 belonging to the apparatus. The reinforcing bar bending apparatus further includes a frame 50, a driving mechanism 60, and a link mechanism.

As shown in fig. 1 and 2, the reinforcing bars 100 are transported above the frame 50, and two stopper plates 51 are installed on the frame 50, and the bent reinforcing bars 100 pass through a gap between the two stopper plates 51.

As shown in fig. 2, 3 and 6, a driving mechanism 60 is mounted on the frame 50, and the driving mechanism 60 includes a motor 61, a gearbox 62 connected to the motor 61, and a transmission shaft 63 connected to an output end of the gearbox 62, such that the transmission shaft 63 is driven by the motor 61 to rotate.

As shown in fig. 6, the press molding mechanism 10 includes: a base seat plate 13, a movable seat plate 12, a top plate 11, a crank connecting rod 14 and a first vertical guide plate 15. The base plate 13 is vertically fixed on the frame 50 and is positioned at one side of the transported steel bar 100 in the radial direction; the movable seat plate 12 is matched with a slide rail which is arranged on the base seat plate 13 and extends vertically through a slide block, and is connected to the base seat plate 13 in a sliding mode so as to move vertically in a reciprocating mode; the top plate 11 is connected to the movable seat plate 12 by the slide block and a slide rail installed in the movable seat plate 12 and extending horizontally so as to be capable of reciprocating horizontal movement. The crank link 14 is disposed between the transmission shaft 63 and the top plate 11, and the transmission shaft 63 drives the top plate 11 via the crank link 14, so that the top plate 11 can perform a reciprocating up-and-down motion (or a reciprocating up-and-down motion) once per rotation of the transmission shaft 63. In this way, the top plate 11 is moved upward to press the reinforcing bar 100 from below the reinforcing bar 100 to bend the reinforcing bar 100, and the top plate 11 is moved downward to be separated from the bent region. First vertical deflector 15 borrows to cooperate and sliding connection to frame 50 on by the slide rail that the slider extends on the direction of delivery of reinforcing bar 100, so that first vertical deflector 15 can move on the direction of delivery and the opposite direction of reinforcing bar 100, and set up the first guide way 151 of vertical extension on first vertical deflector 15, roof 11 facial make-up is equipped with the round pin axle (can adorn the bearing on the round pin axle), the round pin axle wears to establish this first guide way 151 and makes roof 11 and first vertical deflector 15 sliding connection, so, in the direction of delivery and the opposite direction of reinforcing bar 100, roof 11 and the synchronous motion of first vertical deflector 15.

As shown in fig. 1 and 2, the pressing mechanism 20 is provided behind the top plate 11 in the conveying direction of the reinforcing bars 100, and the pressing mechanism 20 has a locked state for restricting the movement of the reinforcing bars 100 behind the top plate 11 in the conveying direction and a released state for releasing the restriction of the movement of the reinforcing bars 100 in the conveying direction. Specifically, the pressing mechanism 20 includes a pitch arm 21 and a driving frame 22; the tail part of the pitching arm 21 is pivoted on the frame 50, and the head part of the pitching arm 21 is provided with a pressure head which is positioned above the reinforcing steel bar 100 behind the top plate 11; the pitch arm 21 causes the ram to press a part of the reinforcing bar 100 against the frame 50 by the pitch motion to restrict the movement of the reinforcing bar 100 in the conveying direction; the tilt arm 21 moves the ram away from the bar 100 by the pitching motion to release the restraint of the bar 100. A guide groove 221 is formed inside the driving frame 22, the pitch arm 21 passes through the guide groove 221, and a groove wall of the guide groove 221 has a section of wedge-shaped surface; the driving block forces the pitch arm 21 to perform a pitch motion by the wedge surface by reciprocating a linear motion in the direction of conveying the reinforcing bar 100 and in the reverse direction, thereby switching the pressing mechanism 20 between a locked state in which the movement of the reinforcing bar 100 is restricted and a released state in which the restriction of the reinforcing bar 100 is released. In some preferred embodiments, the pressing mechanism 20 further includes a stopper 23 fixed to the frame 50, the stopper 23 forms a stopper groove, and two groove walls of the stopper groove are located on two sides of the pitch arm 21 to limit the lateral movement of the pitch arm 21.

As shown in fig. 3 and 4, the clamping mechanism 30 is located in front of the top plate 11 in the conveying direction of the reinforcing bars 100, the clamping mechanism 30 is slidably coupled to the frame 50 to be slidable in the conveying direction and the reverse direction of the reinforcing bars 100, and the clamping mechanism 30 has a clamped state for clamping the reinforcing bars 100 in front of the top plate 11 and a released state for releasing the clamping of the reinforcing bars 100. Specifically, the chucking mechanism 30 includes: a plate frame 31, a swing block 32, and a cylinder 33; the plate frame 31 is slidably connected to the frame 50 by the slide block and the slide rail, the plate frame 31 includes a vertical plate 312 and a bottom plate 311 fixed to the vertical plate 312, a guide block 34 is fixed to an end of the bottom plate 311, a limit hole 341 is formed in the guide block 34, the reinforcing steel bar 100 passes through the limit hole 341 to pass through the bottom plate 311, and the reinforcing steel bar 100 is located in a limit groove 3111 formed in the bottom plate 311; the swing block 32 is pivoted on the vertical plate 312, the air cylinder 33 is used for driving the swing block 32 to swing, the swing block 32 enables the edge of the swing block 32 to press the reinforcing steel bar 100 on the bottom plate 311 through swinging so as to enable the clamping mechanism 30 to be switched to a clamping state, the swing block 32 enables the edge of the swing block 32 to be far away from the reinforcing steel bar 100 through reverse swinging so as to enable the clamping mechanism 30 to be switched to a releasing state, and when the clamping mechanism 30 is switched to the releasing state, the clamping mechanism 30 can move in the reverse direction of the conveying direction.

The above-described modes of matching the state of the pressing mechanism 20 and the state of the clamping mechanism 30 with the press molding mechanism 10 are as follows:

before the top plate 11 moves upward to press the reinforcing bar 100 to bend the reinforcing bar 100, the pressing mechanism 20 is switched to the locking state, and the clamping mechanism 30 is switched to the clamping state.

After the top plate 11 completes the bending formation of the reinforcing bar 100, the pressing mechanism 20 is switched to the release state, and the clamping mechanism 30 is switched to the release state.

The linkage mechanism includes a first transmission mechanism 41, a second transmission mechanism 42, and a third transmission mechanism 43.

As shown in fig. 1, the first transmission mechanism 41 includes a first gear part 411 installed on the transmission shaft 63 and a first toothed plate part 412 capable of reciprocating and linear movement in the direction and the opposite direction of the conveying direction of the reinforcing steel bars; the first toothed plate component 412 has two parallel and oppositely arranged racks, and a partial toothed segment is arranged on the periphery of the first gear component 411; the first gear member 411 rotates via the transmission shaft 63 such that partial tooth segments thereof sequentially mesh with the two racks of the first toothed plate member 412 to drive the first toothed plate member 412 to perform a reciprocating linear motion. Wherein: the first toothed plate member 412 is provided with a push plate 441 for pushing against the first vertical guide plate 15.

The second transmission mechanism 42 includes a second gear member 421 mounted on the transmission shaft 63 and a second toothed plate member 422 capable of reciprocating linear motion in the direction opposite to the conveying direction of the reinforcing bars 100; the second toothed plate member 422 has two racks arranged in parallel and oppositely, and a partial toothed segment is arranged on the outer circumference of the second gear member 421; the second gear member 421 rotates via the transmission shaft 63 to make its partial tooth segment mesh with two racks of the second toothed plate member 422 in turn to drive the second toothed plate member 422 to reciprocate linearly; the driving frame 22 is connected to the second toothed plate component 422, and after the second toothed plate component 422 drives the driving frame 22 to move towards the conveying direction of the reinforcing steel bars 100, the pressing mechanism 20 is switched to the locking state, and when the second toothed plate component 422 drives the driving frame 22 to move towards the direction opposite to the conveying direction of the reinforcing steel bars 100, the pressing mechanism 20 is switched to the releasing state. In some preferred schemes, a counterweight mechanism is further added, and the counterweight mechanism comprises a pulling rope 241, a pulley for the pulling rope 241 to pass around, and a heavy hammer 242 connected to the pulling rope 241 for improving the smoothness of the matching of the first gear component 411 and the first toothed plate component 412.

As shown in fig. 5 to 7, the third transmission mechanism 43 includes: a second vertical guide plate 434, a first rack member 431, and a transfer gear 433. The first rack member 431 is mounted on the frame 50; the second rack member 432 is disposed in parallel to and opposed to the first rack member 431; a transmission gear 433 is arranged on the first vertical guide plate 15, and the transmission gear 433 is meshed with the first rack part 431 and the second rack part 432; the second vertical guide plate 434 is provided with a second guide groove 4341 extending vertically, the second vertical guide plate 434 is fixedly connected to the second rack part 432, the plate frame 31 of the clamping mechanism 30 is provided with a pin shaft, the clamping mechanism 30 is slidably connected to the second vertical guide plate 434 by the pin shaft penetrating through the second guide groove 4341, and the clamping mechanism 30 and the second rack part 432 move synchronously. Thus, when the top plate 11 moves in the direction opposite to the conveying direction of the reinforcing bars 100, the transmission gear 433 drives the second rack member 432 by engaging with the first rack member 431 and the second rack member 432 to drive the clamping mechanism 30 to move in the direction opposite to the conveying direction; when the top plate 11 moves in the conveying direction of the reinforcing bars 100, the driving gear 433 drives the second rack member 432 by engaging with the first rack member 431 and the second rack member 432 to drive the clamping mechanism 30 to move in the conveying direction.

The working process of the steel bar bending equipment is described as follows:

as shown in fig. 10, before the crank link 14 in the press-molding mechanism 10 drives the top plate 11 to move upward to press the reinforcing bar 100 to bend the reinforcing bar 100, the top plate 11 is pressed against a limit position (set position) in the opposite direction of the conveying direction of the reinforcing bar 100 by the push plate 441 of the first transmission mechanism 41, the air cylinder 33 swings by driving the swing block 32 to switch the clamping mechanism 30 to the clamping state, and the second transmission mechanism 42 drives the driving block and the pitch arm 21 to switch the clamping mechanism 20 to the locking state.

Then, the transmission shaft 63 drives the crank link 14 to move upward to press the reinforcing bar 100, and during the pressing, the clamping mechanism 30 will approach the top plate 11 continuously according to the bending angle of the reinforcing bar 100, while the top plate 11 moves upward and moves toward the conveying direction of the reinforcing bar 100.

As shown in fig. 8, when the crank link 14 raises the top plate 11 to the highest position, the reinforcing bars 100 near the left and right sides of the top plate 11 are bent.

As shown in fig. 9, the transmission shaft 63 drives the crank connecting rod 14 to continue to move, so that the top plate 11 moves downward, and during the downward movement of the top plate 11, the second transmission mechanism 42 drives the driving block to move in the direction opposite to the conveying direction of the reinforcing steel bar 100, so that the pressing mechanism 20 is switched to the release state, and at the same time, the air cylinder 33 drives the swing block 32 to swing in the opposite direction, so that the clamping mechanism 30 is switched to the release state.

After the crank connecting rod 14 drives the top plate 11 to move the top plate 11 to the lower side of the steel bar 100, the conveying device located in front of the steel bar 100 bending device conveys the steel bar 100 for a distance, the bent steel bar 100 enters the gap between the two guide plates, and meanwhile, the first toothed plate part 412 in the first transmission mechanism 41 drives the push plate 441 to push against the first vertical guide plate 15, so as to push the top plate 11 to move in the opposite direction of the conveying direction of the steel bar 100 until the top plate moves to the limit position (set position) in the opposite direction. During the movement of the top plate 11 in the direction opposite to the feeding direction of the reinforcing bars 100, the third transmission mechanism 43 moves the holding mechanism 30 in the opposite direction by the top plate 11, and the distance from the top plate 11 is increased.

After the top plate 11 and the clamping mechanism 30 move to the limit positions in the opposite direction again, and before the top plate 11 rises to press the reinforcing bar 100, the first toothed plate component 412 in the first transmission mechanism 41 drives the push plate 441 to move in the conveying direction of the reinforcing bar 100, the air cylinder 33 drives the swing block 32 to rotate to switch the clamping mechanism 30 to the clamping state, and the second toothed plate component 422 in the second transmission mechanism 42 moves in the conveying direction of the reinforcing bar 100 to switch the clamping mechanism 20 to the locking state.

The top plate 11 is driven by the crank connecting rod 14 to move upwards again to bend and form the next section of the reinforcing steel bar 100 again.

The above-mentioned operations are continuously and cyclically performed by each mechanism of the reinforcing bar bending apparatus to complete the continuous bending of the reinforcing bars 100.

In some preferred solutions, the first transmission mechanism 41 further comprises an adjustment mechanism 44, in particular, the adjustment mechanism 44 is a lead screw mechanism for adjusting the position of the push plate 441 with respect to the first toothed plate component 412 in the conveying direction of the reinforcing bars 100, with the purpose of: the top plate 11 pushed against by the push plate 441 is adjusted in the opposite extreme position.

In some preferred schemes, the magnetic damping part 70 is arranged at both sides of the moving direction of the second rack part 432. The two magnetic force damping members 70 cushion and limit two movement positions of the second rack member 432 by applying a magnetic repulsive force to the second rack member 432.

The pressing forming mechanism 10, the pressing mechanism 20, the clamping mechanism 30 and other related components provided by the invention have the advantages that:

1. the top plate 11 of the top press molding mechanism 10 is not restricted in the conveying direction of the reinforcing bars 100 while moving upward, and thus, the reinforcing bars 100 are subjected to less force other than bending by the top plate 11 in bending the reinforcing bars 100.

2. The clamping mechanism 30 is not limited in the feeding direction of the reinforcing bar 100, and the clamping mechanism 30 slides adaptively along the bending process of the reinforcing bar 100, which tends to less hinder the pulling force of the bending of the reinforcing bar 100.

3. In the process of bending the reinforcing bar 100, the position of the top plate 11 in the conveying direction is determined in accordance with the position of the gripping mechanism 30 in the conveying direction, and the shape of the bent reinforcing bar 100 is determined.

4. The pressing mechanism 20 determines a final forming position at which the reinforcing bar 100 is bent by locking the reinforcing bar 100 behind the top plate 11.

5. The pressing mechanism 20 locks and releases the reinforcing bar 100 by swinging the pitch arm 21, and after releasing the reinforcing bar 100, the pitch arm 21 does not interfere with the conveyance of the bent reinforcing bar 100.

6. The driving mechanism 60 drives the top plate 11, the pressing mechanism 20 and the clamping mechanism 30 to move by means of the crank connecting rod 14 connected to the same transmission shaft 63 and the linkage mechanism comprising three transmission mechanisms, so as to avoid driving different mechanisms or parts by different driving mechanisms 60 respectively, further reduce energy consumption, avoid using an electronic control module to control the action time of different mechanisms, further reduce control difficulty and simultaneously improve control reliability.

7. By utilizing the transmission of the two pairs of gear parts and the toothed plate part, the transmission shaft 63 only rotates in the same direction, so that the toothed plate part can drive the related functional parts to realize reciprocating linear motion, and the design is ingenious.

Moreover, although exemplary embodiments have been described herein, the scope of the present invention includes any and all embodiments based on the present invention with equivalent elements, modifications, omissions, combinations (e.g., of various embodiments across), adaptations or alterations. The elements of the claims are to be interpreted broadly based on the language employed in the claims and not limited to examples described in the present specification or during the prosecution of the application, which examples are to be construed as non-exclusive. It is intended, therefore, that the specification and examples be considered as exemplary only, with a true scope and spirit being indicated by the following claims and their full scope of equivalents.

The above description is intended to be illustrative and not restrictive. For example, the above-described examples (or one or more versions thereof) may be used in combination with each other. For example, other embodiments may be used by those of ordinary skill in the art upon reading the above description. In addition, in the above-described embodiments, various features may be grouped together to streamline the disclosure. This should not be interpreted as an intention that a disclosed feature not claimed is essential to any claim. Rather, inventive subject matter may lie in less than all features of a particular disclosed embodiment. Thus, the following claims are hereby incorporated into the detailed description as examples or embodiments, with each claim standing on its own as a separate embodiment, and it is contemplated that these embodiments may be combined with each other in various combinations or permutations. The scope of the invention should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled.

The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the scope of the present invention is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present invention, and such modifications and equivalents should also be considered as falling within the scope of the present invention.

Claims

1. A clamping mechanism, comprising:

2. The clamping mechanism as recited in claim 1, wherein the driving member is a cylinder pivotally connected to the vertical plate, and a head of a piston rod of the cylinder is pivotally connected to the swing block.

3. The clamping mechanism as claimed in claim 1, wherein a guide block is disposed at an end of the bottom plate, a limiting hole is disposed on the guide block, and a steel bar is inserted into the limiting hole.

4. The utility model provides a reinforcing bar equipment of bending which characterized in that includes:

a frame;

a driving mechanism mounted on the frame

the clamping mechanism of any one of claims 1 to 3; wherein:

5. The rebar bending apparatus of claim 4, further comprising a linkage including a first transmission and a second transmission; the first transmission mechanism and the second transmission mechanism are both driven by the driving mechanism; wherein:

6. The rebar bending apparatus of claim 5, wherein the drive mechanism includes a rotary drive member, a drive shaft connected to an output of the rotary drive member;

7. The rebar bending apparatus of claim 6, wherein the linkage further comprises a third transmission mechanism;

the third transmission mechanism includes:

a first rack member mounted on the frame;

8. The reinforcing bar bending device according to claim 7, wherein a second vertical guide plate is fixedly arranged on the second rack component, a guide groove extending vertically is formed in the second vertical guide plate, a pin shaft is fixedly arranged on the plate frame, and the pin shaft on the plate frame penetrates through the guide groove.

9. The reinforcing bar bending apparatus according to claim 7, wherein magnetic damping members are provided on both sides of the moving direction of the second rack member.

10. The rebar bending apparatus of claim 5, wherein the hold-down mechanism comprises: