CN112743435A

CN112743435A - Steel bar cutting device with adjustable length based on conductive property

Info

Publication number: CN112743435A
Application number: CN202110064321.8A
Authority: CN
Inventors: 连英
Original assignee: Shanghai Lunche Electronic Technology Co ltd
Current assignee: Shanghai Lunche Electronic Technology Co ltd
Priority date: 2021-01-18
Filing date: 2021-01-18
Publication date: 2021-05-04

Abstract

The invention relates to the field of electric conduction, and discloses a length-adjustable steel bar cutting device based on electric conduction properties, which comprises a main box body, wherein a cutting cavity with a downward opening is arranged in the main box body, the right end wall of the cutting cavity is communicated with a steel bar cavity with a rightward opening, the lower end wall of the cutting cavity is communicated with a push plate cavity, a push plate shaft is fixedly connected between the left end wall and the right end wall of the push plate cavity, the length of the steel bar is measured by conveying the steel bar and utilizing the electric conductivity of the steel bar, a cutting sand disc in a rotating state is moved to cut off the steel bar after the preset length is reached, the continuous cutting of the steel bar with equal length is completed, the workload of an operator is reduced, the cutting efficiency is improved, meanwhile, the influence of the bending of the steel bar is effectively avoided by utilizing the electric conductivity of the steel bar to measure the length, the applicability of the device is improved.

Description

Steel bar cutting device with adjustable length based on conductive property

Technical Field

The invention relates to the relevant field of electric conduction, in particular to a length-adjustable steel bar cutting device based on electric conduction properties.

Background

Commonly use the bar cutter to cut off the reinforcing bar in the building site, this kind of mode needs the manual work to judge reinforcing bar length and control to cut off the handle and cut off, the work load of operating personnel has been increased, the cutting efficiency has been reduced, also there is the reinforcing bar that equipment that cuts off that adopts the fixed length obtains required length, but because the reinforcing bar probably has the bending, reinforcing bar actual length can be greater than the settlement and cut off length, in addition, the building site generally needs the reinforcing bar of a great quantity or different length, the unable automatic cutout of cutting machine in succession, certain inconvenience has.

Disclosure of Invention

The invention aims to provide a length-adjustable steel bar cutting device based on conductive property, which can overcome the defects in the prior art, thereby improving the practicability of equipment.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a length-adjustable steel bar cutting device based on conductive property, which comprises a main box body, wherein a cutting cavity with a downward opening is arranged in the main box body, the right end wall of the cutting cavity is communicated with a steel bar cavity with a rightward opening, the lower end wall of the cutting cavity is communicated with a push plate cavity, a push plate shaft is fixedly connected between the left end wall and the right end wall of the push plate cavity, the push plate shaft is connected with a push plate which extends downwards into the cutting cavity in a sliding fit manner, a push plate spring is fixedly connected between the right end surface of the push plate and the right end wall of the push plate cavity, the right end surface of the push plate is fixedly connected with a movable contact, an adjusting cavity is arranged at the upper side of the push plate cavity, an adjusting bevel gear cavity is arranged at the right side of the adjusting cavity, the upper end wall of the adjusting bevel gear cavity is connected with an adjusting shaft which, the adjusting shaft is also fixedly connected with a main adjusting bevel gear positioned in the adjusting bevel gear cavity, the left end wall of the adjusting bevel gear cavity is connected with an adjusting screw rod which extends rightwards into the adjusting bevel gear cavity and penetrates through the adjusting cavity leftwards, the adjusting screw rod is fixedly connected with a secondary adjusting bevel gear positioned in the adjusting bevel gear cavity, the secondary adjusting bevel gear is meshed with the main adjusting bevel gear, the adjusting screw rod is connected with a sliding piece sliding block in a threaded fit manner, a sliding piece conductor rod which is positioned at the lower side of the adjusting screw rod and extends outwards into the main box body is fixedly connected between the left end wall and the right end wall of the adjusting cavity, the sliding piece conductor rod is connected with the sliding piece sliding block in a sliding fit manner, a middle lead wire is fixedly connected between the sliding piece conductor rod and the movable contact, and a coil conductor rod which is positioned at the lower side of the sliding piece conductor rod and extends outwards into, fixedly connected with is located on the coil conductor stick coil in the adjustment intracavity, terminal surface fixedly connected with under the gleitbretter slider with the gleitbretter of coil butt, adjustment chamber downside is equipped with the response magnet chamber, response magnet chamber left end wall fixedly connected with is located the response magnet of response magnet intracavity, be equipped with in the main tank and be located the power of response magnet chamber downside, reinforcing bar chamber up end fixedly connected with fixed contact, the power under the terminal surface with fixedly connected with power wire between the fixed contact, the power up end with fixedly connected with response wire between the coil conductor stick, the response wire winding is on response magnet.

On the basis of the technical scheme, a belt wheel cavity is arranged at the rear side of the cutting cavity, a front through cavity is communicated and arranged between the front end wall of the belt wheel cavity and the rear end wall of the cutting cavity, a lifting block cavity is arranged at the rear side of the belt wheel cavity, a rear through cavity is communicated and arranged between the front end wall of the lifting block cavity and the rear end wall of the belt wheel cavity, a lifting bevel gear cavity is arranged at the lower side of the lifting block cavity, a lifting gear cavity is arranged at the rear side of the lifting bevel gear cavity, a rotating gear cavity extending rightwards is arranged between the lifting bevel gear cavity and the belt wheel cavity, a switching gear cavity is communicated and arranged at the right end wall of the lifting gear cavity, an input gear cavity is communicated and arranged at the right end wall of the switching gear cavity, a friction wheel cavity is arranged at the front side of the input gear cavity, an upper end wall of the friction wheel cavity is communicated with a lower end wall of the, the driving shaft penetrates through the rotating gear cavity backwards and extends backwards to the switching gear cavity, the driving shaft is fixedly connected with a driving rotating gear located in the rotating gear cavity, the rear end wall of the belt wheel cavity is connected with a driving belt wheel shaft which extends forwards to the belt wheel cavity and extends backwards to the rotating gear cavity in a rotating and matching mode, the driving belt wheel shaft is fixedly connected with a driven rotating gear located in the rotating gear cavity, and the driven rotating gear is meshed with the driving rotating gear.

On the basis of the technical scheme, a switching sleeve is connected to the driving shaft in a spline fit manner, a switching gear positioned in a switching gear cavity is fixedly connected to the switching sleeve, a switching disc is connected to the rear end face of the switching sleeve in a rotating fit manner, a switching spring is fixedly connected between the rear end face of the switching disc and the rear end wall of the switching gear cavity, an induction slider positioned on the right side of the induction magnet is connected to the induction magnet cavity in a sliding fit manner, an induction spring is fixedly connected between the right end face of the induction slider and the right end wall of the induction magnet cavity, a trigger slider cavity is communicated and arranged on the upper end wall of the induction magnet cavity, a trigger slider is connected to the trigger slider cavity in a sliding fit manner, a trigger spring is fixedly connected between the upper end face of the trigger slider and the upper end wall of the trigger slider cavity, the other end of the switching stay cord is fixedly connected with the rear end face of the switching disc, the rear end wall of the friction wheel cavity is connected with an input intermediate shaft which extends forwards into the friction wheel cavity and backwards into the input gear cavity in a rotating fit mode, the input intermediate shaft is fixedly connected with a friction wheel positioned in the friction wheel cavity, the input intermediate shaft is also fixedly connected with an input gear positioned in the input gear cavity, and the input gear is meshed with the switching gear.

On the basis of the technical scheme, the front end wall of the lifting gear cavity is connected with a lifting intermediate shaft which extends backwards into the lifting gear cavity and extends forwards into the lifting bevel gear cavity in a rotating fit manner, a torsion spring is fixedly connected between the rear end surface of the lifting intermediate shaft and the rear end wall of the lifting gear cavity, the lifting intermediate shaft is fixedly connected with a driven lifting gear positioned in the lifting gear cavity, the upper end wall of the lifting bevel gear cavity is connected with a lifting screw rod which extends downwards into the lifting bevel gear cavity and upwards penetrates through the lifting block cavity in a rotating fit manner, the lifting screw rod is fixedly connected with a secondary lifting bevel gear positioned in the lifting bevel gear cavity, the lifting intermediate shaft is fixedly connected with a main lifting bevel gear positioned in the lifting bevel gear cavity, and the main lifting bevel gear is meshed with the secondary lifting bevel gear, the lifting screw is connected with a lifting block in a threaded fit manner, and the lifting block is connected with the lifting block cavity in a sliding fit manner.

On the basis of the technical scheme, a sand disc box is connected in the cutting cavity in a sliding fit manner, a cutting sand disc cavity with a downward opening is arranged in the sand disc box, a cutting bevel gear cavity is arranged on the left side of the cutting sand disc cavity, a sand disc shaft which extends into the cutting bevel gear cavity leftwards and extends into the cutting sand disc cavity rightwards is connected on the right end wall of the cutting bevel gear cavity in a rotating fit manner, a cutting sand disc with a part positioned in the cutting cavity is fixedly connected on the sand disc shaft, a secondary cutting bevel gear positioned in the cutting bevel gear cavity is also fixedly connected on the sand disc shaft, a driven pulley shaft which penetrates through the rear through cavity, the pulley cavity and the front through cavity forwards and extends into the cutting bevel gear cavity forwards is connected on the front end surface of the lifting block in a rotating fit manner, and a main cutting bevel gear positioned in the cutting bevel gear cavity is fixedly connected on the driven pulley shaft, the main cutting bevel gear is meshed with the auxiliary cutting bevel gear, a driven pulley located in the pulley cavity is fixedly connected to the driven pulley shaft, an auxiliary pulley shaft extending backwards into the pulley cavity and located on the upper side of the driven pulley shaft is connected to the front end wall of the pulley cavity in a rotating fit mode, an auxiliary pulley located in the pulley cavity is fixedly connected to the auxiliary pulley shaft, a driving pulley located in the pulley cavity is fixedly connected to the driving pulley shaft, and a conveying belt is connected among the auxiliary pulley, the driven pulley and the driving pulley in a power fit mode.

The invention has the beneficial effects that: through carrying the reinforcing bar and utilizing its electric conductivity to measure reinforcing bar length, reach and remove the cutting sand table under the rotation state after presetting the length and cut off the reinforcing bar, accomplish the continuous cutting of isometric reinforcing bar, the work load of operating personnel has been reduced, the cutting efficiency has been improved, utilize reinforcing bar electric conductivity survey length effectively to have avoided the crooked influence of reinforcing bar simultaneously, reinforcing bar length and cutting quality have been guaranteed, in addition, can cut out the reinforcing bar of different length through reinforcing bar cutting length adjustment mechanism, in order to satisfy different user demands, the suitability of device has been improved.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic diagram of the overall structure of an adjustable-length steel bar cutting device based on conductive properties.

Fig. 2 is a schematic sectional view of a-a in fig. 1.

FIG. 3 is a schematic cross-sectional view of B-B in FIG. 1.

Fig. 4 is an enlarged schematic view of the structure at C in fig. 1.

Detailed Description

The invention will now be described in detail with reference to fig. 1-4, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

Combine the reinforcing bar cutting device of conducting property based on adjustable length of attached drawing 1-4, including the main tank body 10, be equipped with the decurrent chamber 17 that cuts off of opening in the main tank body 10, cut off chamber 17 right-hand member wall intercommunication and be equipped with opening reinforcing bar chamber 11 to the right, cut off chamber 17 lower extreme wall intercommunication and be equipped with push pedal chamber 19, fixedly connected with push pedal axle 18 between the end wall about push pedal chamber 19, sliding fit is connected to push pedal 16 that downwardly extends in cutting off the chamber 17 on push pedal axle 18, push pedal 16 right-hand member face with fixedly connected with push pedal spring 67 between the push pedal chamber 19 right-hand member wall, push pedal 16 right-hand member face fixedly connected with moving contact 15, push pedal chamber 19 upside is equipped with adjustment chamber 73, adjustment chamber 73 right side is equipped with adjustment bevel gear chamber 80, adjustment bevel gear chamber 80 upper end wall rotating fit is connected with downwardly extending to in the adjustment bevel gear chamber 80 and upwardly extending to external adjusting shaft 78, the adjusting shaft 78 is fixedly connected with a knob 77 positioned outside, the adjusting shaft 78 is also fixedly connected with a main adjusting bevel gear 79 positioned in the adjusting bevel gear cavity 80, the left end wall of the adjusting bevel gear cavity 80 is connected with an adjusting screw 75 which extends rightwards into the adjusting bevel gear cavity 80 and penetrates through the adjusting cavity 73 leftwards in a rotating fit manner, the adjusting screw 75 is fixedly connected with a secondary adjusting bevel gear 76 positioned in the adjusting bevel gear cavity 80, the secondary adjusting bevel gear 76 is meshed with the main adjusting bevel gear 79, the adjusting screw 75 is connected with a sliding sheet slider 74 in a threaded fit manner, a sliding sheet conductor bar 72 positioned at the lower side of the adjusting screw 75 and extending outwards into the main box body 10 is fixedly connected between the left end wall and the right end wall of the adjusting cavity 73, the sliding sheet conductor bar 72 is connected with the sliding sheet slider 74 in a sliding fit manner, and an intermediate lead wire 69 is fixedly connected between the sliding sheet conductor bar 72 and the movable contact 15, a coil conductor bar 68 which is positioned at the lower side of the slip sheet conductor bar 72 and extends outwards into the main box body 10 is fixedly connected between the left end wall and the right end wall of the adjusting cavity 73, a coil 70 which is positioned in the adjusting cavity 73 is fixedly connected to the coil conductor bar 68, a slip sheet 71 which is abutted against the coil 70 is fixedly connected to the lower end surface of the slip sheet slide block 74, an induction magnet cavity 64 is arranged at the lower side of the adjusting cavity 73, an induction magnet 65 which is positioned in the induction magnet cavity 64 is fixedly connected to the left end wall of the induction magnet cavity 64, a power supply 20 which is positioned at the lower side of the induction magnet cavity 64 is arranged in the main box body 10, a fixed contact 22 is fixedly connected to the upper end surface of the reinforcing steel bar cavity 11, a power supply lead 21 is fixedly connected between the lower end surface of the power supply 20 and the fixed contact 22, and an induction lead, the induction wire 66 is wound around the induction magnet 65.

In addition, in one embodiment, a pulley cavity 38 is arranged at the rear side of the cutting cavity 17, a front through cavity 47 is communicated between the front end wall of the pulley cavity 38 and the rear end wall of the cutting cavity 17, a lifting block cavity 36 is arranged at the rear side of the pulley cavity 38, a rear through cavity 37 is communicated between the front end wall of the lifting block cavity 36 and the rear end wall of the pulley cavity 38, a lifting bevel gear cavity 27 is arranged at the lower side of the lifting block cavity 36, a lifting gear cavity 32 is arranged at the rear side of the lifting bevel gear cavity 27, a rotating gear cavity 51 extending rightward is arranged between the lifting bevel gear cavity 27 and the pulley cavity 38, a switching gear cavity 52 is communicated with the right end wall of the lifting gear cavity 32, an input gear cavity 58 is communicated with the right end wall of the switching gear cavity 52, a friction wheel cavity 62 is arranged at the front side of the input gear cavity 58, an upper end wall of the friction wheel cavity 62 is communicated with the lower end wall of the reinforcement cavity, the main box body 10 is internally provided with a motor 49 positioned at the front side of the rotating gear cavity 51, the rear end face of the motor 49 is fixedly connected with a driving shaft 48 which penetrates through the rotating gear cavity 51 backwards and extends backwards into the switching gear cavity 52, the driving shaft 48 is fixedly connected with a driving rotating gear 50 positioned in the rotating gear cavity 51, the rear end wall of the pulley cavity 38 is connected with a driving pulley shaft 25 which extends forwards into the pulley cavity 38 and extends backwards into the rotating gear cavity 51 in a rotating matching manner, the driving pulley shaft 25 is fixedly connected with a driven rotating gear 26 positioned in the rotating gear cavity 51, and the driven rotating gear 26 is meshed with the driving rotating gear 50.

In addition, in one embodiment, a switching sleeve 53 is connected to the driving shaft 48 in a spline fit manner, a switching gear 57 located in the switching gear cavity 52 is fixedly connected to the switching sleeve 53, a switching plate 56 is connected to the rear end surface of the switching sleeve 53 in a rotating fit manner, a switching spring 55 is fixedly connected between the rear end surface of the switching plate 56 and the rear end wall of the switching gear cavity 52, an induction slider 63 located on the right side of the induction magnet 65 is connected to the induction magnet cavity 64 in a sliding fit manner, an induction spring 84 is fixedly connected between the right end surface of the induction slider 63 and the right end wall of the induction magnet cavity 64, a trigger slider cavity 83 is communicated with the upper end wall of the induction magnet cavity 64, a trigger slider 82 is connected to the trigger slider cavity 83 in a sliding fit manner, a trigger spring 81 is fixedly connected between the upper end surface of the trigger slider 82 and the upper, the upper end surface of the trigger sliding block 82 is further fixedly connected with a switching pull rope 54, the other end of the switching pull rope 54 is fixedly connected with the rear end surface of the switching disc 56, the rear end wall of the friction wheel cavity 62 is connected with an input intermediate shaft 60 which extends forwards into the friction wheel cavity 62 and backwards into the input gear cavity 58 in a rotating fit manner, the input intermediate shaft 60 is fixedly connected with a friction wheel 61 which is located in the friction wheel cavity 62, the input intermediate shaft 60 is further fixedly connected with an input gear 59 which is located in the input gear cavity 58, and the input gear 59 is meshed with the switching gear 57.

In addition, in one embodiment, the front end wall of the lifting gear cavity 32 is rotatably connected with a lifting intermediate shaft 30 extending backwards into the lifting gear cavity 32 and forwards into the lifting bevel gear cavity 27, a torsion spring 31 is fixedly connected between the rear end surface of the lifting intermediate shaft 30 and the rear end wall of the lifting gear cavity 32, the lifting intermediate shaft 30 is fixedly connected with a driven lifting gear 29 located in the lifting gear cavity 32, the upper end wall of the lifting bevel gear cavity 27 is rotatably connected with a lifting screw 35 extending downwards into the lifting bevel gear cavity 27 and upwards penetrating through the lifting block cavity 36, the lifting screw 35 is fixedly connected with a driven lifting bevel gear 33 located in the lifting bevel gear cavity 27, the lifting intermediate shaft 30 is fixedly connected with a main lifting bevel gear 28 located in the lifting bevel gear cavity 27, the main lifting bevel gear 28 is meshed with the auxiliary lifting bevel gear 33, and the lifting screw 35 is connected with a lifting block 34 in a threaded fit manner, wherein the lifting block is connected with the lifting block cavity 36 in a sliding fit manner.

In addition, in one embodiment, a sand table box 23 is connected in a sliding fit manner in the cutting cavity 17, a cutting sand table cavity 12 with a downward opening is arranged in the sand table box 23, a cutting bevel gear cavity 43 is arranged on the left side of the cutting sand table cavity 12, a sand table shaft 14 which extends leftwards into the cutting bevel gear cavity 43 and rightwards into the cutting sand table cavity 12 is connected in a rotating fit manner on the right end wall of the cutting bevel gear cavity 43, a cutting sand table 13 which is partially positioned in the cutting cavity 17 is fixedly connected on the sand table shaft 14, a secondary cutting bevel gear 44 which is positioned in the cutting bevel gear cavity 43 is also fixedly connected on the sand table shaft 14, a driven belt wheel shaft 46 which penetrates forwards through the rear through cavity 37, the belt wheel cavity 38 and the front through cavity 47 and extends forwards into the cutting bevel gear cavity 43 is connected in a rotating fit manner on the front end surface of the lifting block 34, a primary cutting bevel gear 45 which is positioned in the cutting bevel gear cavity 43 is fixedly connected on the driven belt wheel shaft 46, the main cutting bevel gear 45 is engaged with the auxiliary cutting bevel gear 44, the driven pulley shaft 46 is further fixedly connected with a driven pulley 42 located in the pulley cavity 38, the front end wall of the pulley cavity 38 is rotatably connected with an auxiliary pulley shaft 41 which extends backwards into the pulley cavity 38 and is located on the upper side of the driven pulley shaft 46 in a matching manner, the auxiliary pulley shaft 41 is fixedly connected with an auxiliary pulley 40 located in the pulley cavity 38, the driving pulley shaft 25 is fixedly connected with a driving pulley 24 located in the pulley cavity 38, and a transmission belt 39 is connected among the auxiliary pulley 40, the driven pulley 42 and the driving pulley 24 in a dynamic matching manner.

The fixing and connecting method in this embodiment includes, but is not limited to, bolting, welding, and the like.

As shown in fig. 1-4, when the apparatus of the present invention is in the initial state, the lifting block 34 and the sand tray box 23 are located at the top of the stroke, the torsion spring 31 is in the relaxed state, the push plate spring 67 is in the relaxed state, the sensing magnet 65 generates magnetic attraction to the sensing slider 63 after the sensing wire 66 is energized, the sensing slider 63 is located at the right side of the sensing magnet cavity 64, the sensing spring 84 is in the relaxed state, the trigger slider 82 is located at the upper side of the trigger slider cavity 83, the switching gear 57 is engaged with the input gear 59, the trigger spring 81 and the switching spring 55 are in the relaxed state, and the switching cord 54 is in the tightened state;

sequence of mechanical actions of the whole device:

when the machine starts to work, the steel bars are pushed into the steel bar cavity 11 to enable the outer end face of the friction wheel 61 to abut against the steel bars, the power supply 20 and the motor 49 are started, the motor 49 is started to drive the driving shaft 48 to rotate, the driving shaft 48 rotates to drive the driving pulley shaft 25 to rotate through the driving rotating gear 50 and the driven rotating gear 26, the driving pulley shaft 25 rotates to drive the driven pulley shaft 46 to rotate through the driving pulley 24 and the conveyor belt 39, the driven pulley shaft 46 rotates to drive the abrasive disc shaft 14 to rotate through the driving cutting bevel gear 45 and the driven cutting bevel gear 44, the abrasive disc shaft 14 rotates to drive the cutting abrasive disc 13 to rotate, the driving shaft 48 simultaneously drives the switching sleeve 53 to rotate, the switching sleeve 53 rotates to drive the input intermediate shaft 60 to rotate through the switching gear 57 and the input gear 59, the input intermediate shaft 60 rotates to drive the friction wheel 61 to rotate, the friction wheel 61 rotates to drive the steel bars to move leftwards under the, when the reinforcing steel bar moves leftwards, the left end face of the reinforcing steel bar is in contact with the movable contact 15, at the moment, the fixed contact 22 is in contact with the outer end face of the reinforcing steel bar, a channel is formed between the movable contact 15 and the fixed contact 22 through the reinforcing steel bar, the power supply 20 works to generate current, the power supply lead 21, the reinforcing steel bar section between the fixed contact 22 and the movable contact 15, the middle lead 69, the sliding sheet conductor bar 72, a current loop is formed between the coil conductor bar 68 and the induction lead 66, the induction magnet 65 generates magnetism under the electromagnetic induction principle, the induction slider 63 overcomes the tension of the induction spring 84 to rapidly move leftwards under the magnetic attraction effect of the induction magnet 65, and the trigger slider 82 is not influenced due to the fact.

The steel bar continues to move leftwards under the action of the rotation of the friction wheel 61, the push plate 16 moves leftwards under the action of the thrust of the steel bar against the action of the spring 67 of the push plate, as the steel bar moves leftwards, the length of the steel bar between the fixed contact 22 and the movable contact 15 is increased, the resistance of the section is increased, so that the current passing through the induction lead 66 is reduced, the magnetic attraction of the induction magnet 65 on the induction slide block 63 is gradually reduced, when the length of the steel bar is increased to a set value, the induction slide block 63 moves rightwards under the action of the tension of the induction spring 84 against the magnetic attraction of the induction magnet 65 to the lower side of the trigger slide block cavity 83, the trigger slide block 82 moves downwards under the action of the magnetic attraction of the induction slide block 63 against the action of the tension of the trigger spring 81 and pulls the switching pull rope 54, the switching, the steel bar stops moving leftwards, meanwhile, the switching gear 57 is meshed with the driven lifting gear 29, the switching sleeve 53 rotates to drive the lifting intermediate shaft 30 to rotate through the switching gear 57 and the driven lifting gear 29, the torsion spring 31 starts to accumulate force, the lifting intermediate shaft 30 rotates to drive the lifting screw 35 to rotate through the main lifting bevel gear 28 and the driven lifting bevel gear 33, the lifting screw 35 rotates to drive the lifting block 34 to move downwards, the lifting block 34 moves downwards to drive the sand tray box 23 to move downwards through the driven belt wheel shaft 46, so as to drive the cutting sand tray 13 to move downwards, the cutting sand tray 13 in a rotating state moves downwards to start cutting the steel bar, the lifting block 34 and the sand tray box 23 move downwards to the lowest end of the stroke, the steel bar is cut off, the cut steel bar falls to the ground under the action of gravity, the push plate 16 moves rightwards to reset under the action of the pull force of the push plate, the induction lead 66 is not electrified, the induction magnet 65 loses magnetism, the induction slide block 63 loses the magnetic attraction of the induction magnet 65 and acts on the right movement reset under the tension of the induction spring 84, the trigger slide block 82 moves upwards and resets under the tension of the trigger spring 81, the switching pull rope 54 is loosened, the switching disc 56 moves upwards and resets under the tension of the switching spring 55, the switching gear 57 is disengaged from the driven lifting gear 29, the lifting middle shaft 30 rotates reversely under the tension spring 31 to drive the lifting block 34 to move upwards and reset, the lifting block 34 moves upwards and resets to drive the sand disc box 23 to move upwards and reset, the switching gear 57 is disengaged from the driven lifting gear 29 and simultaneously the input gear 59 is re-engaged, the friction wheel 61 rotates to continuously convey the reinforcing steel bars, and the continuous cutting of the reinforcing steel bars is completed.

When the cutting length needs to be adjusted, the knob 77 is rotated to drive the adjusting shaft 78 to rotate, the adjusting shaft 78 rotates to drive the adjusting screw 75 to rotate through the main adjusting bevel gear 79 and the auxiliary adjusting bevel gear 76, the adjusting screw 75 rotates to drive the sliding sheet sliding block 74 to move in the adjusting cavity 73, the current passing through the induction lead 66 is changed by changing the number of turns of the coil through which the current passes, so that the magnetic attraction of the induction magnet 65 to the induction sliding block 63 is changed, when the current passing through the induction lead 66 is larger, the longer the length of the steel bar between the movable contact 15 and the fixed contact 22 is, the trigger sliding block 82 can be triggered, the longer the length of the obtained steel bar is, and otherwise, the shorter the length of the obtained steel.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a reinforcing bar cutting device of adjustable length based on electrically conductive property, includes the main tank body, its characterized in that: a cutting cavity with a downward opening is arranged in the main box body, a right end wall of the cutting cavity is communicated with a steel bar cavity with a rightward opening, a lower end wall of the cutting cavity is communicated with a push plate cavity, a push plate shaft is fixedly connected between a left end wall and a right end wall of the push plate cavity, the push plate shaft is connected with a push plate which extends downwards into the cutting cavity in a sliding fit manner, a push plate spring is fixedly connected between a right end surface of the push plate and the right end wall of the push plate cavity, a moving contact is fixedly connected to the right end surface of the push plate, an adjusting cavity is arranged on the upper side of the push plate cavity, an adjusting bevel gear cavity is arranged on the right side of the adjusting cavity, an adjusting shaft which extends downwards into the adjusting bevel gear cavity and extends upwards to the outside is connected to the upper end wall of the adjusting bevel gear cavity in a rotating fit manner, a knob which, the left end wall of the adjusting bevel gear cavity is connected with an adjusting lead screw which extends rightwards into the adjusting bevel gear cavity and penetrates through the adjusting cavity leftwards in a matched manner, the adjusting lead screw is fixedly connected with a secondary adjusting bevel gear which is positioned in the adjusting bevel gear cavity, the secondary adjusting bevel gear is meshed with the main adjusting bevel gear, the adjusting lead screw is connected with a slip sheet sliding block in a threaded manner, a slip sheet conductor rod which is positioned at the lower side of the adjusting lead screw and extends outwards into the main box body is fixedly connected between the left end wall and the right end wall of the adjusting cavity, the slip sheet conductor rod is connected with the slip sheet sliding block in a sliding manner, an intermediate lead wire is fixedly connected between the slip sheet conductor rod and the movable contact, a coil conductor rod which is positioned at the lower side of the slip sheet conductor rod and extends outwards into the main box body is fixedly connected between the left end wall and the right, terminal surface fixedly connected with under the gleitbretter slider with the gleitbretter of coil butt, adjustment chamber downside is equipped with the response magnet chamber, response magnet chamber left end wall fixedly connected with is located the response magnet of response magnet intracavity, be equipped with in the main tank and be located the power of response magnet chamber downside, reinforcing bar chamber up end fixedly connected with fixed contact, the power down the terminal surface with fixedly connected with power wire between the fixed contact, the power up end with fixedly connected with response wire between the coil conductor stick, the response wire winding is on response magnet.

2. The device for cutting off the steel bar with adjustable length based on the conductive property as claimed in claim 1, wherein: the rear side of the cutting cavity is provided with a belt wheel cavity, a front through cavity is communicated and arranged between the front end wall of the belt wheel cavity and the rear end wall of the cutting cavity, the rear side of the belt wheel cavity is provided with a lifting block cavity, a rear through cavity is communicated and arranged between the front end wall of the lifting block cavity and the rear end wall of the belt wheel cavity, the lower side of the lifting block cavity is provided with a lifting bevel gear cavity, the rear side of the lifting bevel gear cavity is provided with a lifting gear cavity, a rotating gear cavity extending rightwards is arranged between the lifting bevel gear cavity and the belt wheel cavity, the right end wall of the lifting gear cavity is communicated and provided with a switching gear cavity, the right end wall of the switching gear cavity is communicated and provided with an input gear cavity, the front side of the input gear cavity is provided with a friction wheel cavity, the upper end wall of the friction wheel cavity is communicated with the lower end wall of the reinforcing steel bar cavity, a motor positioned at the front side of the rotating gear cavity is arranged in the main box body, and the, the driving shaft is fixedly connected with a driving rotating gear located in the rotating gear cavity, the rear end wall of the belt wheel cavity is connected with a driving belt wheel shaft which extends forwards into the belt wheel cavity and backwards into the rotating gear cavity in a rotating fit mode, the driving belt wheel shaft is fixedly connected with a driven rotating gear located in the rotating gear cavity, and the driven rotating gear is meshed with the driving rotating gear.

3. The device for cutting off the steel bar with adjustable length based on the conductive property as claimed in claim 2, wherein: the switching mechanism is characterized in that a switching sleeve is connected to the driving shaft in a spline fit manner, a switching gear positioned in a switching gear cavity is fixedly connected to the switching sleeve, a switching disc is connected to the rear end face of the switching sleeve in a rotating fit manner, a switching spring is fixedly connected between the rear end face of the switching disc and the rear end wall of the switching gear cavity, an induction slider positioned on the right side of an induction magnet is connected to the induction magnet cavity in a sliding fit manner, an induction spring is fixedly connected between the right end face of the induction slider and the right end wall of the induction magnet cavity, a trigger slider cavity is communicated with the upper end wall of the induction magnet cavity, a trigger slider is connected to the trigger slider cavity in a sliding fit manner, a trigger spring is fixedly connected between the upper end face of the trigger slider and the upper end wall of the trigger slider cavity, a switching stay cord is also fixedly connected to the, the friction wheel cavity rear end wall is connected with an input intermediate shaft which extends forwards into the friction wheel cavity and extends backwards into the input gear cavity in a rotating fit mode, the input intermediate shaft is fixedly connected with a friction wheel located in the friction wheel cavity, the input intermediate shaft is further fixedly connected with an input gear located in the input gear cavity, and the input gear is meshed with the switching gear.

4. The device for cutting off the steel bar with adjustable length based on the conductive property as claimed in claim 2, wherein: the front end wall of the lifting gear cavity is connected with a lifting intermediate shaft which extends backwards into the lifting gear cavity and forwards into the lifting bevel gear cavity in a rotating matching manner, a torsion spring is fixedly connected between the rear end surface of the lifting intermediate shaft and the rear end wall of the lifting gear cavity, the lifting intermediate shaft is fixedly connected with a driven lifting gear positioned in the lifting gear cavity, the upper end wall of the lifting bevel gear cavity is connected with a lifting screw rod which extends downwards into the lifting bevel gear cavity and upwards penetrates through the lifting block cavity in a rotating matching manner, the lifting lead screw is fixedly connected with a secondary lifting bevel gear positioned in the lifting bevel gear cavity, a main lifting bevel gear positioned in the lifting bevel gear cavity is fixedly connected to the lifting intermediate shaft, the main lifting bevel gear is meshed with the auxiliary lifting bevel gear, and the lifting screw is in threaded fit connection with a lifting block in sliding fit connection with the lifting block cavity.

5. The device for cutting off the steel bar with adjustable length based on the conductive property as claimed in claim 1, wherein: a sand disc box is connected in a sliding fit manner in the cutting cavity, a cutting sand disc cavity with a downward opening is arranged in the sand disc box, a cutting bevel gear cavity is arranged at the left side of the cutting sand disc cavity, a sand disc shaft which extends leftwards into the cutting bevel gear cavity and rightwards into the cutting sand disc cavity is connected in a rotating fit manner at the right end wall of the cutting bevel gear cavity, a cutting sand disc with a part positioned in the cutting cavity is fixedly connected to the sand disc shaft, a secondary cutting bevel gear positioned in the cutting bevel gear cavity is also fixedly connected to the sand disc shaft, a driven belt wheel shaft which penetrates through the rear through cavity, the belt wheel cavity and the front through cavity forwards and extends forwards into the cutting bevel gear cavity is connected to the front end face of the lifting block in a rotating fit manner, a main cutting bevel gear positioned in the cutting bevel gear cavity is fixedly connected to the driven belt wheel shaft, and the main cutting bevel gear is meshed with the, the belt conveyor is characterized in that a driven belt wheel positioned in the belt wheel cavity is fixedly connected to the driven belt wheel shaft, an auxiliary belt wheel shaft which extends backwards into the belt wheel cavity and is positioned on the upper side of the driven belt wheel shaft is connected to the front end wall of the belt wheel cavity in a rotating fit mode, an auxiliary belt wheel positioned in the belt wheel cavity is fixedly connected to the auxiliary belt wheel shaft, a driving belt wheel positioned in the belt wheel cavity is fixedly connected to the driving belt wheel shaft, and a conveying belt is connected among the auxiliary belt wheel, the driven belt wheel and the driving belt wheel in a power fit mode.