CN111877768B

CN111877768B - Automatic steel bar binding equipment and binding method

Info

Publication number: CN111877768B
Application number: CN202010679239.1A
Authority: CN
Inventors: 张伟民; 王红兵; 史春光
Original assignee: Technology Huahui Weifang Intelligent Robot Co ltd
Current assignee: Technology Huahui Weifang Intelligent Robot Co ltd
Priority date: 2020-07-15
Filing date: 2020-07-15
Publication date: 2021-10-26
Anticipated expiration: 2040-07-15
Also published as: CN111877768A

Abstract

The invention discloses automatic steel bar binding equipment and a steel bar binding method, wherein the automatic steel bar binding equipment comprises a fixing frame, a wire binding and feeding and returning mechanism, a wire binding and feeding and winding mechanism, a wire binding head end clamping mechanism, a wire binding tail end cutting mechanism and a wire binding torsion and fastening mechanism; each mechanism is reasonable in design and simple to operate, automatic wire feeding, winding, clamping, wire returning, wire cutting and wire twisting operations of wire binding are realized in a matched mode, the working efficiency is greatly improved, manual operation is not needed, and the labor cost is reduced; and through the binding wire inlet winding mechanism and the binding wire head end clamping mechanism, the binding wires sequentially go out layer by layer, the binding wire end parts are clamped, and the binding wire inlet winding mechanism is matched with the binding wire feeding and returning mechanism, so that the binding wires can automatically return after spirally going out layer by layer, the waste of the binding wires is reduced, the cost is saved, the problem of high waste of the binding wire consumption caused by the fact that the binding wires cannot return in the binding process is solved, and the binding wire inlet winding mechanism has better use and popularization values.

Description

Automatic steel bar binding equipment and binding method

Technical Field

The present invention relates to a banding apparatus and method, and more particularly to an apparatus and method for banding together and tying crossed bars.

Background

In the building industry, automatic ligature machines have gradually appeared and have been used for the ligature of reinforcing bar, and the wire of bundling in the automatic ligature machine is qualified for the next round of competitions, encircles behind the reinforcing bar ligature point, and the machine can directly screw up the wire of bundling. However, in the process, the binding action of the machine may be in error, for example, when the binding wire is wound around the steel bar after being led out, a certain circle of the binding wire cannot be correctly wound on the binding point of the steel bar, and in order to prevent the error, the binding wire in the automatic binding machine selects a coil with a large diameter when being led out, so that each circle of the binding wire which is led out can be smoothly wound on the binding point of the steel bar. Although the labor cost of the automatic binding machine is reduced, the binding wire is wasted due to the fact that the use amount of the binding wire is increased in the process of immediately screwing the binding wire after the large-diameter coil is used for surrounding the steel bar in binding.

Disclosure of Invention

The invention aims to solve the technical problem of providing automatic steel bar binding equipment and method which are reasonable in design, simple to operate, and capable of orderly leading out and returning a binding wire and avoiding large wire outgoing amount of the binding wire, so as to solve the problem of waste of the binding wire in a binding process.

In order to solve the technical problems, the technical scheme of the invention is as follows: automatic ligature equipment of reinforcing bar includes:

the fixing frame is used as a base body which is directly or indirectly connected and installed by the following mechanisms;

the wire binding, wire feeding and wire returning mechanism is arranged on the fixing frame and drives the wire binding to move so as to realize wire feeding and wire returning of the wire binding;

the wire binding and winding mechanism is correspondingly arranged at a wire feeding outlet of the wire binding and feeding and returning mechanism and comprises a wire binding and winding device which is switched between an opening position and a closing position to surround a steel bar binding point, a spiral wire binding and winding channel is arranged on the inner periphery of the wire binding and winding device, and a wire feeding and bending guide device which is used for bending and guiding a binding wire from the wire feeding outlet of the wire binding and feeding and returning mechanism to the wire binding and winding channel is correspondingly arranged at a winding inlet of the wire binding and winding channel;

the binding wire head end clamping mechanism is correspondingly arranged at a winding outlet of the binding wire winding channel and is matched with the binding wire winding device to clamp the head end of the binding wire, when the binding wire winding device is in a closed position, the binding wire head end clamping mechanism is in a release position, and a gap for accommodating the head end of the binding wire is formed between the binding wire head end clamping mechanism and the release position; when the clamping mechanism at the head end of the binding wire is in a clamping position, the wire returning mechanism is used for returning the binding wire to the wire feeding and returning mechanism;

the wire binding tail end cutting mechanism is arranged between the wire feeding outlet of the wire binding wire feeding and returning mechanism and the wire feeding inlet of the wire feeding bending guide device and is used for cutting off the wire binding;

and the binding wire twisting and fastening mechanism twists the binding wire and fastens the binding wire at the binding point of the steel bar.

As a preferred technical scheme, the wire binding and winding device comprises a first wire winding ring arm and a second wire winding ring arm which are spliced and embedded with each other to form a closed annular structure, wherein the inner peripheries of the first wire winding ring arm and the second wire winding ring arm are spliced to form a spiral wire binding and winding channel;

the wire binding and winding device further comprises a ring arm driving device for realizing swing switching between an opening position and a closing position.

As a preferred technical scheme, the first winding ring arm is fixedly arranged on the fixed frame; the wire inlet bending guide device is fixedly installed on the first winding ring arm, the ring arm driving device is connected with the second winding ring arm, and the ring arm driving device drives the second winding ring arm to swing so as to be matched with the first winding ring arm to realize switching between an opening position and a closing position.

As a preferred technical scheme, at least N layers of channels are arranged on the inner periphery of the first winding ring arm, at least N +1 layers of channels are arranged on the inner periphery of the second winding ring arm, and the channels in the first winding ring arm and the channels in the second winding ring arm are correspondingly spliced and communicated to form the spiral wire binding and winding channel;

an inlet of the first layer of channel of the second winding ring arm is a winding inlet of the wire binding and winding channel, and an outlet of the (N + 1) th layer of channel of the second winding ring arm is a winding outlet of the wire binding and winding channel;

and N is 1.

As a preferred technical scheme, the inner periphery of the first winding ring arm is provided with two layers of channels, and the inner periphery of the second winding ring arm is provided with three layers of channels;

the entry bending guide device is characterized in that an entry outlet of the entry bending guide device is correspondingly communicated with an inlet of a first layer channel of the second winding ring arm, an outlet of the first layer channel of the second winding ring arm is correspondingly communicated with an inlet of a first layer channel of the first winding ring arm, an outlet of the first layer channel of the first winding ring arm is correspondingly communicated with an inlet of a second layer channel of the second winding ring arm, an outlet of the second layer channel of the second winding ring arm is correspondingly communicated with an inlet of a second layer channel of the first winding ring arm, an outlet of the second layer channel of the first winding ring arm is correspondingly communicated with an inlet of a third layer channel of the second winding ring arm, and an outlet of the third layer channel of the second winding ring arm faces the binding wire head end clamping mechanism.

As a preferred technical scheme, the binding wire head end clamping mechanism comprises a clamping spring piece, the upper end of the clamping spring piece is fixedly mounted on the second winding ring arm, the lower end of the clamping spring piece is a free end and is provided with a binding wire clamping part, and the binding wire clamping part is arranged at a winding outlet of the binding wire winding channel and is close to the second winding ring arm for being matched with and clamping the head end of the binding wire;

the wire binding device is characterized in that the first winding ring arm is provided with a clamping spring piece which is used for jacking outwards, the upper part of the clamping spring piece enables the wire binding clamping part and a clamping piece jacking part which is used for accommodating a wire binding gap is formed between the second winding ring arm and the wire binding clamping part, and when the wire binding winding device is located at a closed position, the clamping piece jacking part jacks outwards the clamping spring piece.

According to the technical scheme, the first-end clamping mechanism of the binding wire comprises a binding wire clamping swing block, one end of the binding wire clamping swing block is rotatably installed on the fixing frame, the other end of the binding wire clamping swing block is a free end and is provided with a binding wire clamping portion, the binding wire clamping portion is arranged at a wire winding outlet of a binding wire winding channel, the fixing frame is provided with a driving device, the binding wire clamping swing block driving device drives the binding wire clamping swing block to move, and the swing block driving device enables the binding wire clamping portion to face towards the second winding ring arm to achieve clamping or keeping away from the second winding ring arm.

As a preferred technical solution, the wire-feeding bending guide device includes a wire-feeding cover plate fixedly mounted on the wire-binding winding device, a wire-feeding guide groove is provided in the wire-feeding cover plate, a wire-feeding inlet of the wire-feeding guide groove corresponds to a wire-feeding outlet of the wire-binding wire-feeding loop mechanism, and a wire-feeding outlet of the wire-feeding guide groove corresponds to a winding inlet of the wire-binding wire winding channel.

As a preferable technical scheme, the wire inlet guide groove is formed by bending and smoothly transitioning from a wire inlet to a wire outlet to form an arc-shaped guide groove, and an opening of the arc-shaped guide groove is gradually reduced from the wire inlet to the wire outlet.

As preferred technical scheme, it includes that fixed mounting is sent back the return wire motor to prick the silk on the mount, the output transmission of prick the silk and send back the line motor and be connected with two intermeshing and send back the line clamping gear, two it is provided with the cooperation centre gripping and pricks the silk clamping groove of sending the line or returning the line to send back to correspond on the fitting surface of line clamping gear, be provided with on the mount and pass the prick silk guide in the prick silk clamping groove extremely go into the intraoral bundle silk motion channel of the curved guiding device's income line entry, install on the mount and be used for measuring the bundle send the line hall of the output rotation number of turns of the line motor that send back to prick silk.

As preferred technical scheme, prick silk end tangent line mechanism and include fixed mounting and be in prick silk tangent line motor on the mount, the output transmission of pricking silk tangent line motor is connected with pricks a tangent line pivot, prick a tangent line pivot and rotate and install on the mount, prick a tail end tangent line device installed to the bottom of a tangent line pivot, install on the mount and be used for measuring prick the tangent line hall of a tangent line pivot rotation number of turns.

According to the technical scheme, the wire binding tail end cutting device comprises a wire binding tangent cam fixedly mounted at the bottom end of the wire binding tangent rotating shaft, a wire binding tangent block is mounted on the fixing frame in a sliding mode, the outer end of the wire binding tangent block is in contact with the periphery of the wire binding tangent cam all the time through a tangent return spring, and a wire binding tangent blade used for cutting off a wire binding is arranged at a winding outlet of the wire binding wire feeding and returning mechanism at the inner end of the wire binding tangent block.

According to the technical scheme, the wire binding torsion fastening mechanism comprises a wire binding torsion motor fixedly mounted on a fixing frame, the output end of the wire binding torsion motor is in transmission connection with a wire binding torsion shaft vertically arranged, the wire binding torsion shaft is rotatably mounted on the fixing frame, a binding rod is mounted at the bottom end of the wire binding torsion shaft, and a binding hook is mounted at the bottom end of the binding rod.

As an optimized technical scheme, the binding hook is hinged to the bottom end of the binding rod, and a binding hook reset torsion spring forcing the binding hook to swing to the horizontal position is arranged between the binding hook and the binding rod.

As a preferred technical scheme, the binding rods are vertically and slidably mounted in the binding wire torsion shaft, and a binding rod return spring for forcing the binding rods to move upwards is mounted between the top ends of the binding rods and the bottom end of the binding wire torsion shaft; the bottom of mount is installed and is tied up hook position switch, the bottom of mount still install with tie up the hook trigger spring piece that hook position switch corresponds, the bottom of ligature pole is located tie up the below and the fixed mounting that hook trigger spring piece has and be used for making tie up hook trigger spring piece deformation and contact to tie up hook position switch's the hook position of tying up and trigger the piece.

As a preferred technical scheme, the binding wire twisting motor also serves as the binding wire cutting motor, when the binding wire twisting motor rotates forwards, the binding wire twisting shaft rotates, and when the binding wire twisting motor rotates backwards, the binding wire cutting shaft rotates.

As an optimized technical scheme, the steel bar binding method is used for binding steel bar binding points and comprises the following steps:

aligning binding equipment to a steel bar binding point, driving a binding wire to move forward to feed the binding wire, enabling the binding wire to enter the binding wire inlet winding mechanism to be spirally bent to be led out, and surrounding the binding wire outside the steel bar binding point to finish wire feeding and winding actions of the binding wire;

step two, the head end clamping mechanism clamps the head end of the binding wire to finish the clamping action of the head end of the binding wire;

driving the binding wire to move reversely, dragging the rear part of the binding wire to drive the loop wire, and sequentially tightening each circle of the binding wire outside a binding point of the reinforcing steel bars to finish the loop wire action of the binding wire;

cutting the binding wire, twisting the binding wire and fastening the binding wire at the binding point of the steel bar;

and fifthly, after the binding is finished, the binding equipment moves to the next steel bar binding point, and the actions from the first step to the fourth step are repeated for binding.

As a preferable technical scheme, the steel bar binding method comprises the following steps:

aligning binding equipment to a steel bar binding point, fully opening the binding wire winding device, and moving the binding equipment downwards towards the steel bar binding point to enable the binding wire winding device to be close to the steel bar binding point to be positioned at a binding station, wherein the binding wire twisting and fastening mechanism is just contacted with and positioned right above the steel bar binding point;

the binding wire winding device is closed and surrounds the binding wire twisting and fastening mechanism and the steel bar binding point, and a gap for accommodating the binding wire is formed between the binding wire head end clamping mechanism and the binding wire winding device and is used for realizing wire feeding of the binding wire feeding and returning mechanism;

the binding wire feeding and returning mechanism drives the binding wire to move forward, the binding wire enters the binding wire winding device through the wire feeding bending guide device, moves along the binding wire winding channel and generates bending deformation, the head end of the binding wire moves to a winding outlet of the binding wire winding channel and then extends into an accommodating gap between the binding wire head end clamping mechanism and the binding wire winding device, and the binding wire is wound around a steel bar binding point and outside the binding wire twisting and fastening mechanism at the moment to complete wire feeding and winding actions of the binding wire;

step two, the binding wire winding device is stopped after being opened by a small angle, the binding wire head end clamping mechanism approaches to the binding wire winding device and is matched with the binding wire winding device to clamp the head end of the binding wire, and the binding wire head end clamping action is completed;

thirdly, the wire binding, wire feeding and returning mechanism drives the wire binding to move reversely, the rear part of the wire binding is dragged to drive the returning wire, and all rings of the wire binding are sequentially tightened outside the wire binding torsion fastening mechanism and the steel bar binding point to complete the returning action of the wire binding;

fourthly, the wire binding tail end cutting mechanism cuts off the wire binding, then the wire binding winding device continues to be opened to the initial position, the wire binding twisting and tying mechanism starts to act, the wire binding is twisted, and the wire binding is tied at the steel bar binding point;

Due to the adoption of the technical scheme; the invention has the beneficial effects that: the invention designs automatic steel bar binding equipment and a steel bar binding method, wherein the automatic steel bar binding equipment comprises a fixing frame, a wire binding, wire feeding and returning mechanism, a wire binding, wire feeding and winding mechanism, a wire binding head end clamping mechanism, a wire binding tail end cutting mechanism and a wire binding torsion fastening mechanism; the wire binding wire feeding and returning mechanism is used for driving a wire binding to move so as to realize wire feeding and returning of the wire binding; the wire binding and winding mechanism is used for ensuring that the binding wires sent by the wire binding and feeding and returning mechanism can smoothly and orderly be led out along the spiral binding wire winding channel, and the wire binding wires are bent to be led out by the arrangement of the wire inlet bending guide device and are spirally led out in the binding wire winding channel; after the binding wire enters the binding wire winding device, the situation that the binding wire is blocked in the binding wire winding channel can not occur, and the situation that the binding wire does not enter the channel in the binding wire winding device according to the path sequence in an error mode can not occur; when the binding wire outlet wire is wound to the binding point of the steel bar, the binding wire formed by winding does not overlap, stack and the like, so that the head end of the binding wire can accurately enter between the binding wire head end clamping mechanism and the binding wire winding device; the binding wire head end clamping mechanism is matched with the binding wire winding device to realize a clamping function, and is combined with the binding wire feeding and returning mechanism to control a binding wire returning wire, so that the binding wire wound at a steel bar binding point can bind a steel bar through the returning wire, and the purpose of saving the binding wire is achieved; the wire feeding mechanism is reasonable in design and simple to operate, can realize automatic wire feeding, winding, clamping, wire returning, wire cutting and wire twisting operation, greatly improves the working efficiency, does not need manual operation any more, and reduces the labor cost; and through the binding wire inlet winding mechanism and the binding wire head end clamping mechanism, the binding wires sequentially go out layer by layer, the binding wire end parts are clamped, and the binding wire inlet winding mechanism is matched with the binding wire feeding and returning mechanism, so that the binding wires can return after spirally going out layer by layer, the waste of the binding wires is reduced, the cost is saved, the problem of high waste of the binding wire consumption caused by the fact that the binding wires cannot return in the binding process is solved, and the binding wire inlet winding mechanism has better use and popularization values.

Drawings

The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein:

FIG. 1 is an external overall view of a first embodiment of the present invention;

FIG. 2 is a schematic diagram of the internal structure of the first embodiment of the present invention;

FIG. 3 is a schematic view of another angle of the internal structure of the first embodiment of the present invention;

FIG. 4 is a front view of a first embodiment of the present invention;

FIG. 5 is a side view of a first embodiment of the present invention;

FIG. 6 is a schematic diagram of an initial state of an embodiment of the present invention;

FIG. 7 is a diagram illustrating a state before wire feeding in a working state according to an embodiment of the present invention;

FIG. 8 is a diagram illustrating a wire feeding and winding operation in an operating state according to an embodiment of the present invention;

FIG. 9 is a diagram of a clamped state of an operating condition of an embodiment of the present invention;

FIG. 10 is a diagram illustrating a state after wire return in an operating state according to an embodiment of the present invention;

in the figure:

100-a fixing frame; 101-upper fixing frame; 102-lower fixing frame; 103-a fixed mount cover plate; 104-wire feeding board;

200-wire binding, wire feeding and wire returning mechanism; 201-wire binding and wire returning motor; 202-binding wire clamping grooves; 203-wire feeding Hall; 204-wire feed drive gear; 205-returning the drive gear held by the wire; 206-the return wire holds the driven gear; 207-rotating shaft one; 208-rotating shaft two; 209-slide block; 210-a slider spring; 211-spring baffle; 212-incoming line channel; 213-routing channel; 214-a wire outlet channel;

300-a wire binding and winding mechanism; 301-a first spooling ring arm; 302-a second spooling ring arm; 303-bundling and winding channels; 304-a steering engine; 305-a coupling; 306-a rotating shaft; 307-connecting the stent; 308-a line-in cover plate; 309-wire inlet guide groove;

400-binding wire head end clamping mechanism; 401-clamping the spring plate; 402-a wire binding clamping portion; 403-clip jacking portion;

500-wire binding tail end thread cutting mechanism; 501-pricking wire cutting motor; 502-binding wire tangent rotating shaft; 503-pricking wire tangent cam; 504-bundling wire and cutting line blocks; 505-tangent driven gear; 506-a tangent drive gear;

600-a binding wire twisting and fastening mechanism; 601-vertical guide holes; 602-binding the torsion shaft; 603-a tie rod; 604-binding hook; 605-positioning stop posts; 606-a torsional driven gear; 607-binding hook reset torsion spring; 608-binding a hook to trigger the spring piece; 609-a hook binding position trigger block; 610-hook position switch;

700-binding wires;

800-steel bar binding points.

Detailed Description

The invention is further illustrated below with reference to the figures and examples. In the following detailed description, certain exemplary embodiments of the present invention are described by way of illustration only. Needless to say, a person skilled in the art realizes that the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.

The first embodiment is as follows:

as shown in fig. 1 to 5, the automatic reinforcing bar binding apparatus includes a fixing frame 100, a wire binding and feeding and returning mechanism 200, a wire binding and winding mechanism 300, a wire binding head end clamping mechanism 400, a wire binding tail end cutting mechanism 500, and a wire binding twisting and fastening mechanism 600. The holder 100 serves as a base to which the following mechanism is directly or indirectly attached. In this embodiment, automatic ligature equipment of reinforcing bar passes through mount 100 and installs on the robotic arm of steel bar ligature robot, and the steel bar ligature robot freely walks on the reinforcing bar surface to stop at every steel bar ligature point, then automatic ligature is carried out to steel bar ligature point to steel bar ligature equipment, and automatic ligature equipment of reinforcing bar mainly is applied to needs embedded reinforcement trade such as heavy construction, bridge, high-speed railway.

As shown in fig. 1 to 5, the wire binding and wire feeding and returning mechanism 200 is mounted on the fixing frame 100, and is used for driving the wire binding 700 to move to realize wire feeding and returning of the wire binding 700. The wire binding and wire feeding winding mechanism 300 is correspondingly installed at a wire feeding outlet of the wire binding and wire feeding loop mechanism 200, wherein the wire binding and wire feeding winding mechanism 300 comprises a wire binding and wire winding device which is switched between an opening position and a closing position to surround a steel bar binding point 800, a spiral wire binding and wire winding channel is arranged on the inner circumference of the wire binding and wire winding device, and a wire winding inlet of the wire binding and wire winding channel is correspondingly installed with a wire feeding outlet which is used for guiding a wire binding 700 to the wire binding and wire feeding loop mechanism 200 in a bent mode to a wire feeding bending guiding device in the wire binding and wire winding channel. The binding wire head end clamping mechanism 400 is correspondingly installed at a winding outlet of the binding wire winding channel and is matched with the binding wire winding device to clamp the head end. When the binding wire winding device is in the closed position, the binding wire head end clamping mechanism 400 is in the release position, and a gap for accommodating the head end of the binding wire 700 is formed between the binding wire head end clamping mechanism and the binding wire winding device; when the first clamping mechanism 400 of the binding wire is in the clamping position, the first clamping mechanism is used for returning the binding wire to the wire feeding and returning mechanism 200. The binding wire end cutting mechanism 500 is installed between the wire feeding outlet of the binding wire feeding and returning mechanism 200 and the wire feeding inlet of the wire feeding bending guide device, and is used for cutting the binding wire 700. The wire twisting tie-down mechanism 600 twists the wire 700 and ties the wire 700 at the bar tying point 800. The embodiment also comprises an automatic control system, and all the mechanisms are connected to the automatic control system and used for realizing automatic and ordered operation processes. The wire binding, wire feeding and wire returning mechanism 200 is used for driving the wire binding 700 to move so as to realize wire feeding and wire returning of the wire binding 700; the wire binding and winding mechanism 300 is configured to ensure that the wire 700 fed from the wire binding and feeding and returning mechanism 200 can smoothly and orderly be led out along the spiral wire binding and winding channel, and the wire binding and winding channel is provided with a wire binding and bending guide device so that the wire 700 is bent to be led out, and the wire is spirally led out in the wire binding and winding channel, so that the wire 700 is not blocked in the wire binding and winding channel after entering the wire binding and winding device, and the wire 700 is not mistakenly led into the channel in accordance with the order of the path in the wire binding and winding device; when the outlet wire of the binding wire 700 is wound to the steel bar binding point 800, the binding wire 700 formed by winding does not overlap, stack or the like, so that the head end of the binding wire 700 can accurately enter the gap between the binding wire head end clamping mechanism 400 and the binding wire winding device; the binding wire head end clamping mechanism 400 is matched with the binding wire winding device to realize a clamping function, and is combined with the binding wire feeding and returning mechanism 200 to control the returning of the binding wire 700, so that the binding wire 700 wound on the steel bar binding point 800 can bind the steel bar through the returning wire, and the purpose of saving the binding wire 700 is achieved; the wire feeding mechanism is reasonable in design and simple to operate, can realize automatic wire feeding, winding, clamping, wire returning, wire cutting and wire twisting operation, greatly improves the working efficiency, does not need manual operation any more, and reduces the labor cost; and the binding wire sequentially goes out layer by layer and the end part of the binding wire is clamped through the binding wire incoming wire winding mechanism 300 and the binding wire head end clamping mechanism 400, and is matched with the binding wire feeding and returning mechanism 200, so that the binding wire 700 can return after spirally going out layer by layer, the waste of the binding wire 700 is reduced, the cost is saved, the problem of high waste of the using amount of the binding wire 700 caused by the fact that the binding wire 700 cannot return in the binding process is solved, and the binding wire has better use and popularization values.

The steel bar binding method adopting the automatic steel bar binding equipment is used for binding steel bar binding points 800 and comprises the following steps:

aligning binding equipment to a steel bar binding point 800, driving a binding wire 700 to move forward to feed the wire, leading the wire into the binding wire feeding and winding mechanism 300 to be bent and wound in a spiral shape, and surrounding the binding wire 700 outside the steel bar binding point 800 to finish wire feeding and winding actions of the binding wire 700;

step two, the head end clamping mechanism 400 clamps the head end of the binding wire 700 to complete the head end clamping action of the binding wire 700;

step three, the binding wire 700 is driven to move reversely, the rear part of the binding wire 700 is dragged to drive the return wire, and all circles of the binding wire 700 are sequentially tightened outside the steel bar binding point 800 to finish the return wire action of the binding wire 700;

fourthly, cutting the binding wire 700, then twisting the binding wire 700 and fastening the binding wire 700 at the steel bar binding point 800;

In the steel bar binding method, the head end of the binding wire 700 is clamped, and then the rear part of the binding wire 700 is pulled reversely, so that the wire returning action of the binding wire 700 is realized, and the purpose of saving the binding wire 700 is achieved; the outlet wire of the binding wire 700 is spirally wound outside the steel bar binding point 800 through the binding wire inlet winding mechanism 300, and the spiral outlet wire is used for enabling the binding wire 700 to orderly move, and the head end of the binding wire 700 can be smoothly clamped; by adopting the method of spirally and orderly leading out wires and matching with clamping the head end of the binding wire 700, the wire returning action of the binding wire 700 can be effectively realized, the waste of the binding wire 700 is reduced, the cost is saved, the problem of the waste of too high quantity of the binding wire 700 caused by the fact that the binding wire 700 cannot return wires in the binding process is solved, and the method has better use and popularization values.

The following describes a concrete method for binding reinforcing steel bars with reference to the present embodiment, including the following steps:

aligning binding equipment to a steel bar binding point 800, fully opening the binding wire winding device, and moving the binding equipment downwards towards the steel bar binding point 800 to enable the binding wire winding device to be close to the steel bar binding point 800 and be positioned at a binding station, wherein the binding wire twisting and fastening mechanism 600 is just contacted with and positioned right above the steel bar binding point 800;

then the binding wire winding device is closed and encloses the binding wire twisting and fastening mechanism 600 and the steel bar binding point 800, and at this time, a gap for accommodating the binding wire 700 is formed between the binding wire head end clamping mechanism 400 and the binding wire winding device, so as to realize wire feeding of the binding wire feeding and returning mechanism 200;

the wire binding, wire feeding and returning mechanism 200 drives the wire binding 700 to move forward, the wire binding 700 enters the wire binding and winding device through the wire inlet bending guide device, moves along the wire binding and winding channel and generates bending deformation, the head end of the wire binding 700 moves to the winding outlet of the wire binding and winding channel and then extends into the gap between the wire binding head end clamping mechanism 400 and the wire binding and winding device, and at the moment, the wire binding 700 is wound around the steel bar binding point 800 and the wire binding torsion fastening mechanism 600, so that the wire feeding and winding actions of the wire binding 700 are completed;

step two, the binding wire winding device is opened by a small angle and then is stopped, the binding wire head end clamping mechanism 400 approaches to the binding wire winding device and is matched with the binding wire winding device to clamp the head end of the binding wire 700, and the clamping action of the head end of the binding wire 700 is completed;

thirdly, the wire binding, wire feeding and returning mechanism 200 drives the wire binding 700 to move reversely, the rear part of the wire binding 700 is dragged to drive the wire binding to return, and each circle of the wire binding 700 is sequentially tightened outside the wire binding torsion tightening mechanism 600 and the steel bar binding point 800, so that the wire returning action of the wire binding 700 is completed;

fourthly, the wire tying tail end cutting mechanism 500 cuts the wire tying 700, then the wire tying winding device continues to be opened to an initial position (a fully opened position), the wire tying twisting and fastening mechanism 600 starts to act, and the wire tying 700 is fastened at the steel bar binding point 800 through horizontal twisting;

The following specifically describes each mechanism in the automatic steel bar binding device:

referring to fig. 1, the fixing frame 100 includes an upper fixing frame 101, a lower fixing frame 102, and a fixing frame cover plate 103, wherein a lower end of the upper fixing frame 101 is connected to an upper end of the lower fixing frame 102, and the fixing frame cover plate 103 is fastened to the upper fixing frame 101 and the lower fixing frame 102. The upper fixing frame 101 and the lower fixing frame 102 may be separated from each other, or may be an integral fixing plate.

Referring to fig. 2 and 5, the wire binding and wire feeding and returning mechanism 200 includes a wire binding and wire returning motor 201 fixedly mounted on the fixing frame 100, an output end of the wire binding and wire returning motor 201 is connected with two mutually engaged wire returning clamping gears in a transmission manner, two wire binding clamping grooves 202 for clamping a wire binding 700 to feed or return a wire are correspondingly arranged on a matching surface of the wire returning clamping gears, a wire binding movement channel for guiding the wire binding 700 passing through the wire binding clamping grooves 202 to a wire inlet of the wire inlet bending guiding device is arranged on the fixing frame 100, and a wire feeding hall 203 for measuring the number of rotation turns of the output end of the wire binding and wire returning motor 201 is mounted on the fixing frame 100.

Specifically, referring to fig. 2 and 5, the wire binding and wire feeding and returning mechanism 200 is installed in the upper fixing frame 101 and the fixing frame cover plate 103, the output end of the wire binding and wire feeding and returning motor 201 is fixedly connected with a wire feeding driving gear 204, the wire feeding hall 203 is installed in the fixing frame cover plate 103, and the sensing structure of the wire feeding hall 203 is aligned to the wire feeding driving gear 204, and is used for sensing the number of turns of the rotation of the wire feeding driving gear 204 and transmitting a signal to an automatic control system; the wire returning clamping gear is a wire returning clamping driving gear 205 and a wire returning clamping driven gear 206 respectively, the wire returning clamping driving gear 205 is mounted on a first rotating shaft 207 through a bearing, the first rotating shaft 207 is fixed on the fixing frame 100, the wire feeding driving gear 204 is meshed with the wire returning clamping driving gear 205, and the wire returning clamping driving gear 205 is meshed with the wire returning clamping driven gear 206; the outer rings of the wire feeding and returning clamping driving gear 205 and the wire feeding and returning clamping driven gear 206 are respectively provided with a circle of groove, namely a wire clamping groove 202 which is matched with clamping of a wire feeding or a wire returning of the binding wire 700, a small hole for penetrating the binding wire 700 is formed at the meshing position between the wire feeding and returning clamping driving gear 205 and the wire feeding and returning clamping driven gear 206, the diameter of the small hole is smaller than that of the binding wire 700, and the wire feeding clamping effect can be achieved.

Referring to fig. 2 and 5, the upper fixing frame 101 is further provided with a wire feeding gear assembly corresponding to the wire returning clamping driven gear 206, the wire feeding gear assembly comprises a second rotating shaft 208, a sliding block 209, a sliding block spring 210 and a spring baffle 211, the wire returning clamping driven gear 206 is mounted on the second rotating shaft 208 through a bearing, the sliding block 209 is U-shaped, the second rotating shaft 208 is mounted at an opening end of the sliding block 209, a closed end of the sliding block 209 is provided with a circular hole, one end of the sliding block spring 210 is located in the circular hole, and the other end of the sliding block spring is mounted and fixed on a protruding structure on one side of the spring baffle 211. Specifically, the slider spring 210 is a compression spring, and is located in the wire feeding gear assembly in a compressed state, and the acting force presses the wire feeding holding driven gear 206 in the wire feeding gear assembly to the wire feeding holding driving gear 205 for meshing, and the wire feeding holding driving gear 205 is meshed with the wire feeding holding driven gear 206 in tight meshing.

Referring to fig. 2 and 5, the fixing frame 100 further includes a wire feeding plate 104 and an inner sealing plate (not shown in the drawings), the inner side of the upper fixing frame 101 is provided with a wire feeding channel 212 and a wire routing channel 213, the wire feeding channel 212 is an inlet for manually feeding the binding wire 700 when the wire feeding channel 212 is used for the initial use, so that the wire feeding channel 212 is used for feeding the binding wire 700, and the wire feeding channel 212 is located in front of the binding wire clamping groove 202; a wire feeding plate 104 is mounted on the inner side of the lower fixing frame 102, a wire outlet channel 214 is arranged on the wire feeding plate 104, and the wire outlet channel 213 and the wire outlet channel 214 jointly form the wire binding movement channel; the upper end openings of the incoming line channel 212, the outgoing line channel 213 and the outgoing line channel 214 are all in an inverted cone shape, and the internal sealing cover plate is mounted on the outgoing line channel 214 and the outgoing line channel 213 in a covering mode. The wiring channel 213 and the wire outlet channel 214 are used for feeding and returning wires of the binding wire 700, an inverted cone opening at the upper end of each channel can enable the binding wire 700 to smoothly go out, the binding wire 700 is effectively prevented from being clamped in the process of entering each channel, the long and thin groove diameter at the lower end of each channel can be aligned and calibrated to enable the binding wire 700 to keep the same shape, the subsequent wire feeding and winding are standardized, the binding wire 700 is prevented from being separated from the inner sealing cover plate, the wire outlet channel 214 can be reserved on the wire feeding plate 104 and integrally formed with the lower fixing frame or the integral fixing plate, the number of parts of the fixing frame 100 is reduced, and the upper fixing frame 101, the lower fixing frame 102 and the wire feeding plate 104 installed on the lower fixing frame 102 can be flexibly disassembled and assembled, and are convenient to install.

Referring to fig. 1 to 4, the wire binding and winding device includes a first wire winding ring arm 301 and a second wire winding ring arm 302 which are spliced and embedded with each other to form a closed ring structure, and the inner circumferences of the first wire winding ring arm 301 and the second wire winding ring arm 302 are spliced to form the wire binding and winding channel 303 in a spiral shape; the wire binding and winding device further comprises a ring arm driving device for realizing swing switching between an opening position and a closing position.

Specifically, referring to fig. 1 to 4, the first bobbin ring arm 301 is fixedly mounted on the fixing frame 100; the wire inlet bending guide device is fixedly installed on the first winding ring arm 301, the ring arm driving device is connected with the second winding ring arm 302, and the ring arm driving device drives the second winding ring arm 302 to swing so as to be matched with the first winding ring arm 301 to achieve an opening position or a closing position. Referring to fig. 3, the loop arm driving device includes a steering engine 304 fixedly mounted on the fixing frame 100, an output end of the steering engine 304 is connected to one end of a coupler 305, the other end of the coupler 305 is connected to a rotating shaft 306, a connecting bracket 307 is fixedly mounted on the rotating shaft 306, and the connecting bracket 307 is fixedly connected to the second winding loop arm 302.

Specifically, referring to fig. 1 to 4, the first winding ring arm 301 and the second winding ring arm 302 are both semi-circular ring structures, and the first winding ring arm 301 is fixedly connected to the lower end of the fixing frame 100 in an inverted crescent shape. Further, the second winding ring arm 302 is located at the lower portion and the side portion of the first winding ring arm 301, so that when the second winding ring arm 302 is opened, an avoidance space capable of avoiding a reinforcement bar binding point 800 is provided below the first winding ring arm 301 and the second winding ring arm 302, as shown in fig. 6 and 7.

The inner periphery of the first winding ring arm 301 is provided with at least N layers of channels, the inner periphery of the second winding ring arm 302 is provided with at least N +1 layers of channels, and the channels in the first winding ring arm 301 and the channels in the second winding ring arm 302 are correspondingly spliced and communicated to form the spiral wire binding and winding channel 303; an inlet of the first layer of channel of the second winding ring arm 302 is a winding inlet of the wire binding and winding channel 303, and an outlet of the (N + 1) th layer of channel of the second winding ring arm 302 is a winding outlet of the wire binding and winding channel 303; and N is 1. Thus, when the inner circumference of the first bobbin arm 301 is provided with one layer of channels, the inner circumference of the second bobbin arm 302 is provided with two layers of channels; when the inner circumference of the first winding ring arm 301 is provided with two layers of channels, the inner circumference of the second winding ring arm 302 is provided with three layers of channels; when the inner circumference of the first winding ring arm 301 is provided with three layers of channels, the inner circumference of the second winding ring arm 302 is provided with four layers of channels, and so on; the number of channels is chosen according to the actual need, and is well known to those skilled in the art, and will not be described herein.

Specifically, the inner periphery of the first winding ring arm 301 is provided with two layers of channels, and the inner periphery of the second winding ring arm 302 is provided with three layers of channels; the wire inlet outlet of the wire inlet bending guide device is correspondingly communicated with the inlet of the first layer channel of the second winding ring arm 302, the outlet of the first layer channel of the second winding ring arm 302 is correspondingly communicated with the inlet of the first layer channel of the first winding ring arm 301, the outlet of the first layer channel of the first winding ring arm 301 is correspondingly communicated with the inlet of the second layer channel of the second winding ring arm 302, the outlet of the second layer channel of the second winding ring arm 302 is correspondingly communicated with the inlet of the second layer channel of the first winding ring arm 301, the outlet of the second layer channel of the first winding ring arm 301 is correspondingly communicated with the inlet of the third layer channel of the second winding ring arm 302, and the outlet of the third layer channel of the second winding ring arm 302 faces the binding head end clamping mechanism 400. Referring to fig. 2 and 3, the winding path of the binding wire 700 after being wound is started from the wire inlet of the wire inlet bending guide device, the front end of the binding wire 700 sequentially passes through the first layer channel of the second winding ring arm 302, the first layer channel of the first winding ring arm 301, the second layer channel of the second winding ring arm 302 and the second layer channel of the first winding ring arm 301, and reaches the third layer channel of the second winding ring arm 302, and then the front end of the binding wire 700 enters between the binding wire head end clamping mechanism 400 and the second winding ring arm 302 to be clamped by the binding wire head end clamping mechanism 400 for subsequent loop. In this embodiment, the first winding ring arm 301 and the second winding ring arm 302 are closed ring structures, so that the wire binding and winding channel 303 is a continuous spiral channel, which can effectively ensure that the movement path of the wire binding 700 is accurate and orderly, and the phenomena of overlapping, stacking, staggered layers and the like do not occur, thereby providing a guarantee for clamping the head end of the wire binding 700.

Referring to fig. 3, the binding head end clamping mechanism 400 includes a clamping spring plate 401 located above the second winding ring arm 302, the upper end of the clamping spring plate 401 is fixedly mounted on the second winding ring arm 302, the lower end of the clamping spring plate 401 is a free end and is provided with a binding clamping portion 402, and the binding clamping portion 402 is disposed at the winding outlet of the binding wire winding channel 303 and is close to the second winding ring arm 302 for clamping the head end of the binding wire 700 in a matching manner; the first winding ring arm 301 is provided with a clamping piece jacking portion 403 for jacking the upper portion of the clamping spring piece 401 outwards so that a gap for accommodating the binding wire 700 is generated between the binding wire clamping portion 402 and the second winding ring arm 302, and when the binding wire winding device is in a closed position, the clamping piece jacking portion 403 jacks the clamping spring piece 401 outwards.

Specifically, when the second wire winding ring arm 302 is closed but not completely closed, the wire clamping portion 402 at the bottom end of the clamping spring plate 401 contacts the second wire winding ring arm 302, as shown in fig. 9; as the second wire winding ring arm 302 is gradually closed, the upper portion of the clamping spring plate 401 is pushed outward by the clip pushing portion 403, so that the wire binding clamping portion 402 is opened, referring to fig. 8, a gap is generated between the wire binding clamping portion 402 and the second wire winding ring arm 302, and the gap distance is greater than the diameter of the wire binding 700. The clamping spring plate 401 has the effect of a spring plate, when the second wire winding ring arm 302 is opened, the clamping spring plate 401 slides down from the clamping piece jacking portion 403, and the wire binding clamping portion 402 at the lower end of the clamping spring plate is only attached to the side surface of the second wire winding ring arm 302 and used for clamping the end portion of the wire binding 700.

Referring to fig. 3, the clip lifting portion 403 has an inclined guide surface, when the clamping spring plate 401 gradually approaches the clip lifting portion 403, the clamping spring plate 401 is gradually lifted outward, and when the second wire winding ring arm 302 is opened, the clamping spring plate 401 may gradually recede along the inclined guide surface. In this embodiment, the operation of the first clamping mechanism 400 of the binding wire does not require a driving force, but is controlled by the opening angle of the second winding ring arm 302, which not only has a simple structure and saves power, but also has a orderly operation.

Referring to fig. 2 and 4, the wire-feeding bending guiding device includes a wire-feeding cover plate 308 fixedly mounted on the binding wire winding device, a wire-feeding guide groove 309 is disposed in the wire-feeding cover plate 308, a wire-feeding inlet of the wire-feeding guide groove 309 corresponds to a wire-feeding outlet of the binding wire feeding and returning mechanism 200, and a wire-feeding outlet of the wire-feeding guide groove 309 corresponds to a winding inlet of the binding wire winding channel 303. The wire inlet guide groove 309 is formed by bending and smoothly transiting from a wire inlet to form an arc-shaped guide groove, referring to fig. 4, the arc-shaped guide groove not only has an effect of guiding the movement of the binding wire 700, but also forces the binding wire 700 entering the arc-shaped guide groove to generate bending deformation due to the arc-shaped structure, so that the binding wire 700 coming out of the arc-shaped guide groove is deformed into a spiral shape, can smoothly and quickly move along the spiral-shaped binding wire winding channel 303, and the service life of the device is prevented from being reduced due to excessive friction generated in the binding wire winding channel 303. The opening of the arc-shaped guide groove is gradually reduced from the wire inlet to the wire inlet, so that the binding wire 700 can more accurately enter the binding wire winding channel 303 after coming out from the wire inlet.

Referring to fig. 2 and 5, the wire binding tail end wire cutting mechanism 500 includes a wire binding wire cutting motor 501 fixedly mounted on the fixing frame 100, an output end of the wire binding wire cutting motor 501 is connected with a wire binding wire cutting rotating shaft 502 in a transmission manner, the wire binding wire cutting rotating shaft 502 is rotatably mounted on the fixing frame 100, a wire binding tail end wire cutting device is mounted at a bottom end of the wire binding wire cutting rotating shaft 502, and a wire cutting hall (not shown in the drawings) for measuring the number of rotation turns of the wire binding wire cutting rotating shaft 502 is mounted on the fixing frame 100.

Referring to fig. 2 and 5, the wire binding tail end cutting device includes a wire binding cutting cam 503 fixedly installed at the bottom end of the wire binding cutting rotating shaft 502, a wire binding cutting block 504 is installed on the fixing frame 100 in a sliding manner in the transverse direction, the outer end of the wire binding cutting block 504 is always in contact with the periphery of the wire binding cutting cam 503 through a cutting return spring (not shown in the figure), and a wire binding cutting blade for cutting off the wire binding 700 at the winding outlet of the wire binding wire feeding and returning mechanism 200 is arranged at the inner end of the wire binding cutting block 504.

Specifically, a tangent driving gear 506 is fixedly mounted at an output end of the wire binding and tangent motor 501, the wire binding and tangent rotating shaft 502 is rotatably mounted on the fixed frame 100 through a bearing, a tangent driven gear 505 is fixedly mounted at a top end of the wire binding and tangent rotating shaft 502, and the tangent driving gear 506 is meshed with the tangent driven gear 505; when the cam end of the wire binding and cutting cam 503 is not in contact with the wire binding and cutting block 504 and is at the farthest end, the wire binding and cutting blade is located outside the wire binding movement channel, and the wire binding 700 is not cut; when the cam end of the binding wire cutting cam 503 contacts the binding wire cutting block 504, the binding wire cutting blade cuts the binding wire 700.

Referring to fig. 2 to 4, the binding wire twisting and fastening mechanism 600 includes a binding wire twisting motor fixedly mounted on the fixing frame 100, an output end of the binding wire twisting motor is connected to a vertically arranged binding wire twisting shaft 602 in a transmission manner, the binding wire twisting shaft 602 is rotatably mounted on the fixing frame 100, a binding rod 603 is mounted at a bottom end of the binding wire twisting shaft 602, and a binding hook 604 is mounted at a bottom end of the binding rod 603. The output end of the wire binding torsion motor is fixedly provided with a torsion driving gear, the wire binding torsion shaft 602 is rotatably arranged on the fixing frame 100 through a bearing, the top end of the wire binding torsion shaft 602 is fixedly provided with a torsion driven gear 606, and the torsion driving gear is meshed with the torsion driven gear 606.

Referring to fig. 2 to 4, the binding hook 604 is hinged at the bottom end of the binding rod 603, and a binding hook return torsion spring 607 is installed between the binding hook 604 and the binding rod 603 for forcing the binding hook 604 to swing to the horizontal. The binding hook 604 is a horizontal hook which can swing from a horizontal binding position to a vertical unhooking position to facilitate unhooking, when binding the steel bar binding point 800, the binding hook 604 is at the horizontal binding position, the binding hook 604 horizontally twists to fasten the steel wire on the steel bar binding point 800, and when fastening, the binding hook 604 pulls upwards, because the binding hook 604 is hinged to the bottom end of the binding rod 603, the binding hook 604 swings from the horizontal binding position to the vertical unhooking position to detach from the fastened binding wire 700, and when completely detaching from the binding wire 700, the binding hook 604 returns to the horizontal binding position from the vertical unhooking position under the action of the binding hook reset torsion spring 607 to wait for next action.

Referring to fig. 2-4, said ligating bars 603 are vertically slidably mounted within said wire twisting shaft 602, and a ligating bar return spring (not shown in the figures) is mounted between the top end of said ligating bars 603 and the bottom end of said wire twisting shaft 602 for urging said ligating bars 603 upward; hook position switch 610 is tied up to the bottom of mount 100, the bottom of mount 100 still install with the hook position switch 610 of tying up binds the hook and triggers spring leaf 608 that corresponds, the bottom of ligature pole 603 is located it triggers the below of spring leaf 608 and fixed mounting to be used for making to bind the hook and trigger spring leaf 608 and warp the contact to bind the hook position of hook position switch 610 and trigger block 609.

Specifically, the wire binding torsion shaft 602 is a hollow tube, the upper part of the wire binding rod 603 is located in the wire binding torsion shaft 602, a vertical guide hole 601 is vertically formed in the outer wall of the hollow tube, a positioning stop column 605 extending into the vertical guide hole 601 is arranged at the top end of the wire binding rod 603, the positioning stop column 605 limits the up-and-down movement of the wire binding rod 603 along the vertical guide hole 601, and the wire binding rod is limited when reaching the upper end and the lower end of the vertical guide hole 601; tie up pole reset spring suit and be in outside ligature pole 603, tie up pole reset spring's top supports and leans on the location bumping post 605 on ligature pole 603 top, tie up pole reset spring's bottom supports and leans on the bottom of ligature silk torsion shaft 602, tie up pole reset spring can promote all the time ligature pole 603 downstream, the top of tying up hook position trigger block 609 is used for contacting tie up hook trigger spring piece 608 for make tie up hook trigger spring piece 608 contact tie up on the hook position switch 610.

The wire binding torsion motor also serves as the wire binding tangent motor 501, and the torsion driving gear also serves as the tangent driving gear; the binding wire torsion shaft 602 is connected to the fixing frame 100 through a one-way bearing, the binding wire tangent rotating shaft 502 is connected to the fixing frame 100 through a one-way bearing, and the rotation directions of the two one-way bearings are opposite, so that the rotation directions of the binding wire torsion shaft 602 and the binding wire tangent rotating shaft 502 are opposite; when the binding wire twisting motor rotates forwards, the binding wire twisting shaft 602 rotates, and when the binding wire twisting motor rotates backwards, the binding wire tangent line rotating shaft 502 rotates. The common motor not only can effectively simplify the structure, but also can make the cutting process and the twisting process orderly act.

This embodiment can realize in proper order that automatic send line, wire winding, press from both sides tightly, return wire, tangent line, twist wire operation, and specific working process is as follows:

firstly, an initial state:

when the wire binding and wire feeding and returning mechanism 200 is operated for the first time or a coil of wire binding 700 is used for the first time, the wire binding 700 needs to be manually fed into the wire feeding channel 212, and the wire binding 700 is continuously and manually passed through the wire binding clamping groove 202 on the meshing surface of the wire feeding and returning clamping driven gear 205 and the wire returning and clamping driven gear 206 and is fed to the upper port of the wire routing channel 213;

after the whole machine moves above the steel bar binding point 800, the output end rotates by the action of the steering engine 304, the rotating shaft 306 is driven to rotate through the coupler 305, the connecting bracket 307 swings and opens along with the rotation of the rotating shaft 306, namely, the second winding ring arm 302 is driven to be in an opening position, the opening angle is 35 degrees, at the moment, the binding hook 604 is perpendicular to the winding ring arm and is in a free stretching state, the protruding end of the binding wire tangent cam 503 is far away from the binding wire tangent block 504, and the binding wire movement channel is smooth, which is shown in fig. 6;

II, working state:

1. before the wire is sent: the whole machine moves downwards, the binding hook 604 contacts the top of a steel bar firstly, the whole machine moves downwards continuously, the binding hook 604 overcomes the compression of the binding rod return spring and moves upwards relatively in the binding wire torsion shaft 602, the binding hook position trigger block 609 also moves upwards along with the binding hook 604 until the top end of the binding hook trigger spring piece 608 is contacted, the whole machine stops moving downwards (reaches a binding station) after the binding hook trigger spring piece 608 is contacted with the binding hook position switch 610, and at the moment, a steel bar binding point 800 and the binding hook 604 are both positioned in a circular ring formed by the first winding ring arm 301 and the second winding ring arm 302, and the state is shown in fig. 7;

after the binding hook position switch 610 is triggered, the steering engine 304 acts to enable the conveying end to rotate reversely, the second winding ring arm 302 starts to be closed, when the second winding ring arm 302 is closed but not completely closed, the binding wire clamping portion 402 at the bottom end of the clamping spring piece 401 contacts with the second winding ring arm 302, and along with the gradual closing of the second winding ring arm 302 to the complete closing (namely, in the closed position), the upper portion of the clamping spring piece 401 is pulled outwards by the clamping piece jacking portion 403, so that the binding wire clamping portion 402 is opened; after the fully closed state, the first winding ring arm 301 and the second winding ring arm 302 are matched to enclose the binding hook 604 and the steel bar binding point 800, and the fully closed state is shown in fig. 8;

2. a wire feeding process: the wire binding and returning motor 201 rotates in the forward direction, the wire feeding driving gear 204 installed at the output end of the wire binding and returning motor rotates, the number of rotation turns of the wire feeding driving gear 204 is sensed by the wire feeding hall 203, the wire feeding driving gear 204 drives the wire returning clamping driving gear 205 and the wire returning clamping driven gear 206 to rotate, a wire binding 700 in the wire binding clamping groove 202 is driven to move along the wire routing channel 213 and the wire outlet channel 214, the wire binding 700 enters the wire inlet bending guiding device from the outlet of the wire outlet channel 214, the wire feeding process of the wire binding 700 is realized, and refer to that the wire binding 700 is arranged in the wire outlet channel 214 in fig. 8;

3. and (3) winding: after the binding wire 700 enters the wire inlet guide groove 309 in the wire inlet cover plate 308 and is acted by the arc-shaped guide groove, the binding wire 700 is changed from a straightening state to a bending state to be led out, enters the spiral binding wire winding channel 303, orderly winds along the spiral path of the binding wire winding channel 303, surrounds the steel bar binding point 800 and the binding hook 604, when the head end of the binding wire 700 comes out from the winding outlet of the binding wire winding channel 303 and enters the gap between the binding wire clamping portion 402 and the second winding ring arm 302, after the wire feeding hall 203 induces that the wire binding wire feeding and returning motor 201 rotates for 9 circles, the wire binding wire feeding and returning motor 201 stops rotating, the head end of the wire binding 700 is just positioned in the gap between the wire binding clamping part 402 and the second winding ring arm 302, and the wire feeding and winding processes of the wire binding 700 are completed;

4. and (3) clamping process: then, the steering engine 304 acts to control the second wire winding ring arm 302 to open by a small angle (about 10 degrees) and then stop, the upper part of the clamping spring piece 401 slides down from the clamping piece jacking part 403, the binding wire clamping part 402 at the bottom end of the clamping spring piece 401 approaches to the second wire winding ring arm 302 and clamps the head end of the binding wire 700 positioned between the two parts, the clamping process of the head end of the binding wire 700 is completed, and the clamping state is shown in fig. 9;

5. and (3) a loop returning process: the wire binding and wire returning motor 201 rotates reversely to drive the wire returning and wire clamping driving gear 205 and the wire returning and clamping driven gear 206 to rotate reversely, the rear part of the wire binding 700 is extruded and dragged to drive the wire returning, the front end of the wire binding 700 is clamped, so that rings of the wire binding 700 are sequentially tightened outside the binding hook 604 and the steel bar binding point 800 during wire returning, after the wire feeding hall 203 senses that the wire binding and wire returning motor 201 rotates reversely for 5 rings, the wire binding and wire returning motor 201 stops rotating to complete the wire returning process of the wire binding 700, and the state after wire returning is shown in fig. 10;

6. a thread cutting process: then, the wire binding and cutting motor 501 rotates reversely for 1 circle and then stops, in the rotating process, when the wire binding and cutting rotating shaft 502 is driven to rotate, the convex end of the wire binding and cutting cam 503 is driven to gradually approach the wire binding and cutting block 504, so that the wire binding and cutting block 504 overcomes the inward transverse movement of the wire cutting return spring, the wire binding and cutting blade cuts off the wire binding 700 in the wire binding movement channel, and when the wire binding and cutting cam 503 continues to rotate, the wire binding and cutting cam 503 is far away from the wire binding and cutting block 504, the wire binding and cutting block 504 recovers to the initial position in the wire cutting return spring, and the wire binding 700 process is completed;

7. binding process: after the tangent Hall senses a signal that the wire binding tangent rotating shaft 502 rotates for 1 circle, the steering engine 304 works to continue rotating, the second winding ring arm 302 is controlled to be mechanically opened for 25 degrees (at an opening position, the opening angle is 35 degrees), and the clamping spring piece 401 is far away from the second winding ring arm 302, is not matched with the second winding ring arm 302 and is not used for clamping the end part of the wire binding 700;

then the whole machine is lifted for 76mm, and the binding rod 603 still keeps the binding hook 604 at the original position under the action of the binding rod return spring; the binding wire tangent motor 501 which is also used as the binding wire torsion motor rotates 4 circles forwards, the binding wire tangent motor 501 drives the binding wire torsion shaft 602 to rotate, namely, the binding rod 603 and the binding hook 604 are driven to horizontally twist, so that the binding hook 604 pulls the upper part of the binding wire 700, the upper part of the binding wire 700 forms a binding buckle, the binding wire 700 is fastened on the steel bar binding point 800, and the binding process of the binding wire 700 is completed;

8. resetting: after the binding of the binding hook 604 is finished, the whole machine is lifted continuously, the binding hook 604 is dragged upwards, the binding hook 604 is hinged to the bottom end of the binding rod 603, so that the binding hook 604 swings from a horizontal binding position to a vertical unhooking position and is separated from a fastened binding buckle, and after the binding hook is completely separated from the binding wire 700, the binding hook 604 is restored from the vertical unhooking position to the horizontal binding position under the action of the binding hook resetting torsion spring 607 to wait for the next binding action; after the binding is finished, the binding equipment moves to the next steel bar binding point 800, and the process is repeated to carry out automatic binding.

The embodiment can be used for binding the steel bar binding points 800 and other non-steel bar crossed objects together to fasten the non-steel bar crossed objects mutually.

Example two:

the difference between this embodiment and the first embodiment is only that the mechanism of the binding wire head end clamping mechanism 400 is different: in the first embodiment, the clamping state of the clamping spring plate 401 is controlled by the opening position of the second wire winding ring arm 302, and no separate power is needed for controlling the clamping state, but in the present embodiment, a separate device is designed, and the separate power device is used for controlling the wire clamping swing block to swing back and forth, and the wire clamping swing block is matched with the second wire winding ring arm 302 for clamping or releasing the wire 700.

Prick silk head end clamping mechanism 400 and press from both sides tight centering block including pricking the silk, prick the one end rotation that the silk presss from both sides tight centering block and install on mount 100, prick the other end that the silk presss from both sides tight centering block and just be provided with prick the silk clamping part for the free end, prick the setting of silk clamping part and be in prick the wire winding exit of silk wire winding passageway 303, install the drive on the mount 100 prick the silk presss from both sides tight centering block wobbling centering block drive arrangement, it makes to prick the piece drive arrangement prick the silk clamping part orientation the second wire winding ring arm 302 realizes pressing from both sides tightly or keeps away from second wire winding ring arm 302. The pendulum block driving device can be a telescopic cylinder. When the wire is fed and wound, the swinging block driving device enables the wire binding clamping part to be far away from the second winding ring arm 302, so that a gap capable of binding the end part of the wire 700 is formed between the wire binding clamping part and the second winding ring arm 302; when the end of the binding wire 700 extends into the gap between the binding wire clamping portion and the second winding ring arm 302 and needs to be clamped, the swinging block driving device enables the binding wire clamping portion to face the second winding ring arm 302 to be close to and clamp the end of the binding wire 700 in cooperation with the second winding ring arm 302, so that the wire returning process is achieved.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. Automatic ligature equipment of reinforcing bar, its characterized in that includes:

2. The automatic rebar tying device of claim 1, wherein: the wire binding and winding device comprises a first winding ring arm and a second winding ring arm which are spliced and embedded with each other to form a closed annular structure, and the inner peripheries of the first winding ring arm and the second winding ring arm are spliced to form a spiral wire binding and winding channel;

3. The automatic rebar tying device of claim 2, wherein: the first winding ring arm is fixedly arranged on the fixed frame; the wire inlet bending guide device is fixedly installed on the first winding ring arm, the ring arm driving device is connected with the second winding ring arm, and the ring arm driving device drives the second winding ring arm to swing so as to be matched with the first winding ring arm to realize switching between an opening position and a closing position.

4. The automatic rebar tying device of claim 2, wherein: the inner periphery of the first winding ring arm is provided with at least N layers of channels, the inner periphery of the second winding ring arm is provided with at least N +1 layers of channels, and the channels in the first winding ring arm and the channels in the second winding ring arm are correspondingly spliced and communicated to form the spiral binding wire winding channel;

an inlet of the first layer of channel of the second winding ring arm is a winding inlet of the wire binding and winding channel, and an outlet of the (N + 1) th layer of channel of the second winding ring arm is a winding outlet of the wire binding and winding channel; and N is 1.

5. The automatic rebar tying device of claim 2, wherein: the inner periphery of the first winding ring arm is provided with two layers of channels, and the inner periphery of the second winding ring arm is provided with three layers of channels;

6. The automatic rebar tying device of claim 2, wherein: the binding wire head end clamping mechanism comprises a clamping spring piece, the upper end of the clamping spring piece is fixedly mounted on the second winding ring arm, the lower end of the clamping spring piece is a free end and is provided with a binding wire clamping part, and the binding wire clamping part is arranged at a winding outlet of the binding wire winding channel and is close to the second winding ring arm and used for being matched with and clamping the head end of the binding wire;

7. The automatic rebar tying device of claim 2, wherein: prick silk head end clamping mechanism and press from both sides tight centering block including pricking the silk, prick the one end rotation that the silk presss from both sides tight centering block and install on the mount, prick the other end that the silk presss from both sides tight centering block and be provided with prick the silk clamping part for the free end, prick the setting of silk clamping part and be in prick the wire winding exit of silk wire winding passageway, install the drive on the mount prick the silk presss from both sides tight centering block wobbling centering block drive arrangement, centering block drive arrangement makes prick the silk clamping part orientation the second wire winding ring arm is realized pressing from both sides tightly or is kept away from the second wire winding ring arm.

8. The automatic rebar tying device according to any one of claims 1 to 7, wherein: the wire inlet bending guide device comprises a wire inlet cover plate fixedly mounted on the wire binding and winding device, a wire inlet guide groove is formed in the wire inlet cover plate, a wire inlet of the wire inlet guide groove corresponds to a wire feeding outlet of the wire binding and wire feeding and returning mechanism, and a wire inlet of the wire inlet guide groove corresponds to a winding inlet of the wire binding and winding channel.

9. The automatic rebar tying device of claim 8, wherein: the wire inlet guide groove is bent and smoothly transited from the wire inlet to form an arc-shaped guide groove, and the opening of the arc-shaped guide groove is gradually reduced from the wire inlet to the wire inlet.

10. The automatic rebar tying device of claim 8, wherein: the wire binding and wire feeding loop mechanism comprises a wire binding and wire feeding motor fixedly mounted on a fixing frame, wherein the wire binding and wire feeding motor is connected to two mutually meshed wire clamping gears and two wire binding and wire clamping grooves matched with the wire binding and wire feeding or loop wires are correspondingly arranged on the matching surface of the wire clamping gears and are provided with wire binding clamping grooves, the wire binding grooves are formed in the fixing frame and are used for penetrating through the wire binding grooves, the wire binding grooves are guided to the wire binding movement channel in the wire inlet of the wire binding bending guiding device, and the wire binding hall with rotating turns at the output end of the wire binding and wire feeding motor is mounted on the fixing frame and used for measuring.

11. The automatic rebar tying device of claim 8, wherein: prick silk terminal tangent line mechanism and include fixed mounting prick silk tangent line motor on the mount, the output transmission of pricking silk tangent line motor is connected with pricks silk tangent line pivot, prick silk tangent line pivot and rotate and install on the mount, prick the bottom of silk tangent line pivot and install and prick silk tail end tangent line device, install on the mount and be used for measuring prick the tangent line hall that silk tangent line pivot rotated the number of turns.

12. The automatic rebar tying device of claim 11, wherein: prick silk tail end tangent device and include fixed mounting prick the silk tangent cam of silk tangent pivot bottom, lateral sliding mounting has prick silk tangent piece on the mount, the outer end of pricking the silk tangent piece is passed through tangent line reset spring and is contacted all the time prick silk tangent cam periphery, prick the inner of silk tangent piece and be provided with prick the silk and send the wire winding exit of line return mechanism to be used for cutting off the bundle silk tangent line sword of pricking the silk.

13. The automatic rebar tying device of claim 11, wherein: prick the silk and twist reverse fastening mechanism and include fixed mounting prick the silk on the mount and twist reverse the motor, prick the output transmission that the silk twists reverse the motor and be connected with the prick silk torsion shaft of vertical setting, prick the silk torsion shaft and rotate to install on the mount, prick the bottom of silk torsion shaft and install the ligature pole, the bottom of ligature pole is installed and is pricked the hook.

14. The automatic rebar tying device of claim 13, wherein: the binding hook is hinged to the bottom end of the binding rod, and a binding hook reset torsion spring forcing the binding hook to swing to the horizontal position is installed between the binding hook and the binding rod.

15. The automatic rebar tying device of claim 13, wherein: the binding rod is vertically and slidably installed in the binding wire torsion shaft, and a binding rod reset spring for forcing the binding rod to move upwards is installed between the top end of the binding rod and the bottom end of the binding wire torsion shaft; the bottom of mount is installed and is tied up hook position switch, the bottom of mount still install with tie up the hook trigger spring piece that hook position switch corresponds, the bottom of ligature pole is located tie up the below and the fixed mounting that hook trigger spring piece has and be used for making tie up hook trigger spring piece deformation and contact to tie up hook position switch's the hook position of tying up and trigger the piece.

16. The automatic rebar tying device of claim 13, wherein: the wire binding torsion motor is also used as the wire binding tangent motor, when the wire binding torsion motor rotates forwards, the wire binding torsion shaft rotates, and when the wire binding torsion motor rotates backwards, the wire binding tangent rotating shaft rotates.

17. A reinforcing bar binding method using the automatic reinforcing bar binding apparatus according to any one of claims 1 to 16 for binding reinforcing bar binding points, comprising the steps of:

18. A method of rebar tying as claimed in claim 17 including the steps of: