CN112475115A

CN112475115A - Steel wire batch shearing device with straightening function

Info

Publication number: CN112475115A
Application number: CN202011126983.5A
Authority: CN
Inventors: 赵秀军
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-20
Filing date: 2020-10-20
Publication date: 2021-03-12

Abstract

The invention relates to a batch shearing device for steel wires with a straightening function, which comprises a base, a support rod, a bottom plate, a wire coil, a shearing mechanism and a fixing mechanism, wherein the shearing mechanism is arranged on the bottom plate, the fixing mechanism is arranged on the wire coil, the batch shearing device for steel wires with the straightening function realizes the fixation of the wire coil through the fixing mechanism, and the straightening, conveying and shearing of the steel wires are realized through the shearing mechanism. The fixing mechanism can realize the fixation of the wire coil through simple push-pull, avoids the use of tools such as an electric drill and the like, and is convenient to disassemble and assemble.

Description

Steel wire batch shearing device with straightening function

Technical Field

The invention relates to a batch shearing device for steel wires with a straightening function.

Background

The steel wire is one of four large varieties of steel plate, pipe, mould and wire, is a reprocessed product made by cold drawing hot rolled wire rod, and is classified according to the section shape, and mainly has the shapes of circle, square, rectangle, triangle, ellipse, flat, trapezoid, Z-shape, etc.

When the steel wire leaves a factory, the steel wire is generally wound on a wire coil, when the steel wire shearing device is used, the steel wire is required to be sheared according to different requirements, the length of the steel wire is generally measured by a measuring ruler in the conventional shearing mode, then the steel wire is sheared by steel wire pliers, the operation is troublesome, and the steel wire shearing device is not suitable for batch production, so that a batch shearing device appears in the market, the conventional batch shearing device is not provided with a better straightening device generally, the shearing precision of the steel wire is easily influenced by bending of the steel wire, meanwhile, a plurality of output ends are required to be driven respectively for conveying and shearing of the steel wire, and the energy consumption is high.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: in order to overcome the defects of the prior art, the rigid wire batch shearing device with the straightening function is provided.

The technical scheme adopted by the invention for solving the technical problems is as follows: a batch shearing device for steel wires with a straightening function comprises a base, a supporting rod, a bottom plate, a wire coil, a shearing mechanism and a fixing mechanism, wherein the bottom plate is arranged above the base through the supporting rod, the wire coil is arranged at one end of the bottom plate, the shearing mechanism is arranged on the bottom plate, and the fixing mechanism is arranged on the wire coil;

the shearing mechanism comprises a driving component, a clamping component and a shearing component, the driving component comprises a motor, a driving shaft, two rotating wheels, two rotating shafts and two fixed wheels, the motor is horizontally arranged on a base, the driving shaft is installed on the motor, the rotating shafts are arranged on a bottom plate, the rotating shafts are parallel to the driving shaft, the two rotating wheels are respectively sleeved on the driving shaft and the rotating shafts, the two rotating wheels are respectively in key connection with the driving shaft and the rotating shafts, the two rotating wheels are connected through belt transmission, the fixed wheels are sleeved on the rotating shafts, the fixed wheels are in key connection with the rotating shafts, the clamping component comprises a positioning rod, a positioning block, a first spring, a positioning shaft and a positioning wheel, the positioning rod is arranged on the bottom plate, the positioning groove is arranged on the positioning rod, the positioning block is positioned in the positioning groove, the positioning block is in, one end of the first spring is connected with the positioning groove, the other end of the first spring is connected with the positioning block, the first spring is in a compressed state, the positioning wheel is sleeved on the positioning shaft, the positioning wheel is connected with the positioning shaft in a key mode, the positioning wheel abuts against the fixed wheel, the shearing assembly comprises a shearing unit and a pushing unit, the shearing unit comprises two clamping rods, two blades and a second spring, the two clamping rods are arranged in a crossed mode, the crossed position of the two clamping rods is hinged, the hinged position of the two clamping rods is provided with a torsional spring, the number of the blades is two, the two blades are respectively arranged on the two clamping rods, the two blades are just opposite to each other, a notch is formed in the bottom plate, one end, provided with the blades, of each clamping rod penetrates through the notch, the second spring is arranged at one end, far away from the blades, of each clamping rod, and two ends of the second spring are respectively connected, the second spring is in a stretching state, the pushing unit comprises connecting wheels, a fixed shaft, a cam and a push rod, the fixed shaft is arranged at one side of the driving shaft, the fixed shaft is parallel to the driving shaft, the two connecting wheels are respectively sleeved on the fixed shaft and the driving shaft, the two connecting wheels are respectively in key connection with the fixed shaft and the driving shaft, the two connecting wheels are in transmission connection through a belt, the cam is sleeved on the fixed shaft, the cam is in key connection with the fixed shaft, the push rod is arranged between the two clamping rods, the push rod is positioned at one side of the clamping rods, away from the blade, limiting grooves are formed in the clamping rods, two ends of the push rod are respectively positioned in the two limiting grooves of the two clamping rods, the push rod is in sliding connection with the limiting grooves, and the;

the fixing mechanism comprises a rotating rod and two fixing assemblies, the wire coil is sleeved on the rotating rod and is in key connection with the rotating rod, a notch is formed in the bottom plate, the two fixing assemblies are arranged on two sides of the notch respectively, each fixing assembly comprises a fixing column, a sleeve, a third spring and a glass bead screw, the fixing column is arranged in the notch, the sleeve is sleeved on the fixing column and is in sliding connection with the fixing column, the third spring is sleeved on the fixing column, the third spring is located between the notch and the sleeve, one end of the third spring is connected with the notch, the other end of the third spring is connected with the sleeve, the third spring is in a compressed state, the glass bead screw is arranged in the fixing column, a ball of the glass bead screw is abutted against one end of the sleeve, and two ends of the rotating rod are located in two sleeves of the two fixing assemblies respectively, the rotating rod is connected with the sleeve in a sliding manner.

In order to better limit the movement of the positioning block, a sliding block is arranged on the positioning block, a sliding groove is formed in the positioning groove, the sliding block is located in the sliding groove, and the sliding block is connected with the sliding groove in a sliding mode.

In order to better limit the movement of the positioning block, the number of the sliding blocks is two, the two sliding blocks are respectively arranged on two sides of the positioning block, the number of the sliding grooves is two, and the two sliding blocks are respectively positioned in the two sliding grooves.

In order to better limit the movement of the positioning wheel, the number of the positioning rods is two, the two positioning rods are respectively arranged at two ends of the positioning shaft, the number of the positioning blocks is two, the two positioning blocks are respectively positioned in the two positioning grooves of the two positioning rods, and the two positioning shafts respectively penetrate through the two positioning blocks.

For carrying out better spacing to the removal of push rod, the one end that the push rod is located the spacing inslot is equipped with the stopper, the spacing inslot is equipped with the bar groove, the stopper is located the bar inslot, stopper and bar groove sliding connection.

For carrying out better spacing to the removal of push rod, the stopper has two, and two stoppers set up respectively in the both sides of push rod, the bar groove has two, and two stoppers are located two bar inslots respectively.

In order to reduce friction, be equipped with the gyro wheel on the stopper, the bar inslot is equipped with the draw-in groove, the gyro wheel is located the draw-in groove, gyro wheel and draw-in groove rolling connection.

In order to realize better limiting effect on the sleeve, the number of the glass bead screws is two, and the two glass bead screws are respectively arranged on two sides of the fixing column.

In order to reduce friction, the one end that the fixed column is located the cover pipe is equipped with the pulley, the pulley has two, and two pulleys set up respectively in the both sides of fixed column, be equipped with the ring channel on the bull stick, the pulley is located the ring channel, pulley and ring channel sliding connection.

In order to realize better straightening effect, the bottom plate is provided with a fixed pipe.

The batch shearing device for the steel wires with the straightening function has the advantages that the wire coil is fixed through the fixing mechanism, and the steel wires are straightened, conveyed and sheared through the shearing mechanism.

Drawings

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

FIG. 1 is a schematic structural diagram of a wire batch shearing device with a straightening function according to the present invention;

FIG. 2 is a schematic view of a connecting structure of a positioning block and a positioning rod of the steel wire batch shearing device with straightening function according to the present invention;

FIG. 3 is a schematic structural diagram of a shearing assembly of the wire batch shearing device with straightening function according to the present invention;

FIG. 4 is a schematic view of a connecting structure of a push rod and a clamp rod of the steel wire batch shearing device with straightening function according to the invention;

FIG. 5 is a schematic structural diagram of a fixing assembly of a wire batch shearing device with a straightening function according to the present invention;

in the figure: 1. the automatic cutting machine comprises a base, 2 parts of supporting rods, 3 parts of a bottom plate, 4 parts of a wire coil, 5 parts of a motor, 6 parts of a driving shaft, 7 parts of a rotating wheel, 8 parts of a rotating shaft, 9 parts of a fixed wheel, 10 parts of a positioning rod, 11 parts of a positioning block, 12 parts of a first spring, 13 parts of a positioning shaft, 14 parts of a positioning wheel, 15 parts of a clamping rod, 16 parts of a blade, 17 parts of a second spring, 18 parts of a connecting wheel, 19 parts of a fixed shaft, 20 parts of a cam, 21 parts of a push rod, 22 parts of a rotating rod, 23 parts of a fixed column, 24 parts of a sleeve, 25 parts of a third spring, 26 parts of a glass bead screw, 27 parts of a sliding block, 28 parts of.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

As shown in fig. 1, a steel wire batch shearing device with a straightening function comprises a base 1, a support rod 2, a bottom plate 3, a wire coil 4, a shearing mechanism and a fixing mechanism, wherein the bottom plate 3 is arranged above the base 1 through the support rod 2, the wire coil 4 is arranged at one end of the bottom plate 3, the shearing mechanism is arranged on the bottom plate 3, and the fixing mechanism is arranged on the wire coil 4;

the steel wire is wound on the wire coil 4, the wire coil 4 is installed and fixed through the fixing mechanism, and batch shearing of the steel wire is realized through the shearing mechanism.

As shown in fig. 2-4, the shearing mechanism includes a driving assembly, a clamping assembly and a shearing assembly, the driving assembly includes a motor 5, a driving shaft 6, two rotating wheels 7, a rotating shaft 8 and a fixed wheel 9, the motor 5 is horizontally disposed on the base 1, the driving shaft 6 is mounted on the motor 5, the rotating shaft 8 is disposed on the bottom plate 3, the rotating shaft 8 is parallel to the driving shaft 6, the two rotating wheels 7 are respectively sleeved on the driving shaft 6 and the rotating shaft 8, the two rotating wheels 7 are respectively connected with the driving shaft 6 and the rotating shaft 8 in a key manner, the two rotating wheels 7 are connected through belt transmission, the fixed wheel 9 is sleeved on the rotating shaft 8, the fixed wheel 9 is connected with the rotating shaft 8 in a key manner, the clamping assembly includes a positioning rod 10, a positioning block 11, a first spring 12, a positioning shaft 13 and a positioning wheel 14, the positioning rod 10 is, the positioning rod 10 is provided with a positioning groove, the positioning block 11 is positioned in the positioning groove, the positioning block 11 is connected with the positioning groove in a sliding manner, the first spring 12 is arranged in the positioning groove, one end of the first spring 12 is connected with the positioning groove, the other end of the first spring 12 is connected with the positioning block 11, the first spring 12 is in a compression state, the positioning wheel 14 is sleeved on the positioning shaft 13, the positioning wheel 14 is in key connection with the positioning shaft 13, the positioning wheel 14 is abutted against the fixed wheel 9, the shearing assembly comprises a shearing unit and a pushing unit, the shearing unit comprises clamping rods 15, blades 16 and second springs 17, the clamping rods 15 are provided with two clamping rods 15 in a crossed manner, the crossed portion of the two clamping rods 15 is hinged, the hinged portion of the two clamping rods 15 is provided with a torsion spring, the blades 16 are provided with two blades, the two blades 16 are respectively arranged on the two clamping rods 15, two blades 16 are just opposite to each other, a notch is formed in the bottom plate 3, one end of each clamping rod 15 provided with the blade 16 penetrates through the notch, the second spring 17 is arranged at one end, far away from the blade 16, of each clamping rod 15, two ends of each second spring 17 are connected with the two clamping rods 15 respectively, each second spring 17 is in a stretching state, each pushing unit comprises a connecting wheel, a fixed shaft 19, a cam 20 and a push rod 21, the fixed shaft 19 is arranged at one side of the driving shaft 6, the fixed shaft 19 is parallel to the driving shaft 6, the connecting wheels are two in number, the two connecting wheels are respectively sleeved on the fixed shaft 19 and the driving shaft 6, the two connecting wheels are respectively in key connection with the fixed shaft 19 and the driving shaft 6 and are connected through belt transmission, the cam 20 is sleeved on the fixed shaft 19, the cam 20 is in key connection with the fixed shaft 19, and the push, the push rod 21 is positioned on one side of the clamping rod 15, which is far away from the blade 16, a limiting groove is formed in the clamping rod 15, two ends of the push rod 21 are respectively positioned in the two limiting grooves of the two clamping rods 15, the push rod 21 is connected with the limiting groove in a sliding manner, and the cam 20 is abutted against the push rod 21;

pulling the positioning block 11, the positioning block 11 driving the positioning shaft 13 to move upwards, the positioning shaft 13 driving the positioning wheel 14 to move upwards, so that a sufficient space is left between the positioning wheel 14 and the fixed wheel 9, then placing the steel wire between the positioning wheel 14 and the fixed wheel 9, then passing through the fixed pipe 31, releasing the positioning block 11, at this time, the first spring 12 is in a compressed state, the restoring force of the first spring 12 generates a thrust force on the positioning block 11, so that the positioning block 11 moves downwards under the restoring force of the first spring 12, the positioning block 11 driving the positioning shaft 13 to move downwards, the positioning shaft 13 driving the positioning rod 10 to move downwards, the positioning rod 10 driving the positioning wheel 14 to move downwards, so that the positioning wheel 14 and the fixed wheel 9 clamp the steel wire, operating the motor 5, the motor 5 driving the driving shaft 6 to rotate, the driving shaft 6 driving the rotating wheel 7 connected with the driving shaft to rotate, and the rotating wheel 7 driving the other rotating wheel, the other rotating wheel 7 drives the rotating shaft 8 to rotate, the rotating shaft 8 drives the fixed wheel 9 to rotate, under the action of friction force, the fixed wheel 9 drives the steel wire clamped by the fixed wheel 9 and the positioning wheel 14 to move, so that clamping and conveying of the steel wire are realized, the steel wire is straightened by the fixed wheel 9 and the positioning wheel 14 and then straightened by the fixed tube 31, meanwhile, the driving shaft 6 drives the connecting wheel to rotate, the connecting wheel drives the other connecting wheel to rotate by a belt, the other connecting wheel drives the fixed shaft 19 to rotate, the fixed shaft 19 drives the cam 20 to rotate, when the convex surface of the cam 20 is not abutted against the push rod 21, the second spring 17 is in a stretching state, the restoring force of the second spring 17 generates pulling force on the clamping rod 15, so that the push rod 21 generates pushing force, so that the push rod 21 moves in a direction far away from the hinged part of the two clamping rods 15, so that the end parts of the, so that the two blades 16 approach each other and the two blades 16 shear the steel wire, when the convex surface of the cam 20 abuts against the push rod 21, the cam 20 drives the push rod 21 towards the articulation of the clamping bars 15, so that the ends of the two clamping bars 15 move away from each other and the two blades 16 move away from each other, so as to release the steel wire.

The moving distances of the steel wires in a certain time are the same, the cam 20 rotates at a constant speed, so that the time of each intermittent operation of the shearing unit is the same, the steel wires move for the same time each time, the shearing unit finishes one-time shearing, the shearing length of each steel wire is the same, and batch production is realized.

Here, the positioning block 11 moves to drive the sliding block 27 to move, and the sliding block 27 is located in the sliding chute, so that the sliding block 27 can only move along the axis direction of the sliding chute, and the movement of the sliding block 27 is limited, and the movement of the positioning block 11 is better limited.

Here push rod 21 removes drive stopper 28 and removes, and stopper 28 is located the bar inslot to make stopper 28 only can remove along the axis direction in bar groove, thereby carry out spacingly to the removal of stopper 28, thereby carry out better spacing to the removal of push rod 21.

In order to better limit the movement of the positioning block 11, a sliding block 27 is arranged on the positioning block 11, a sliding groove is arranged in the positioning groove, the sliding block 27 is located in the sliding groove, and the sliding block 27 is in sliding connection with the sliding groove.

In order to better limit the movement of the positioning block 11, there are two sliding blocks 27, the two sliding blocks 27 are respectively arranged at two sides of the positioning block 11, there are two sliding grooves, and the two sliding blocks 27 are respectively located in the two sliding grooves.

In order to better limit the movement of the positioning wheel 14, there are two positioning rods 10, the two positioning rods 10 are respectively arranged at two ends of the positioning shaft 13, there are two positioning blocks 11, the two positioning blocks 11 are respectively located in the two positioning grooves of the two positioning rods 10, and the two positioning shafts 13 respectively penetrate through the two positioning blocks 11.

For carrying out better spacing to the removal of push rod 21, the one end that push rod 21 is located the spacing inslot is equipped with stopper 28, the spacing inslot is equipped with the bar groove, stopper 28 is located the bar inslot, stopper 28 and bar groove sliding connection.

In order to carry out better spacing to the removal of push rod 21, stopper 28 has two, and two stoppers 28 set up respectively in the both sides of push rod 21, the bar groove has two, and two stoppers 28 are located two bar inslot respectively.

In order to reduce friction, the limiting block 28 is provided with a roller 29, the strip-shaped grooves are provided with clamping grooves, the roller 29 is located in the clamping grooves, and the roller 29 is connected with the clamping grooves in a rolling mode.

In order to achieve a better straightening effect, the bottom plate 3 is provided with a fixed pipe 31.

As shown in fig. 5, the fixing mechanism includes a rotating rod 22 and two fixing components, the wire coil 4 is sleeved on the rotating rod 22, the wire coil 4 is connected with the rotating rod 22 by a key, the bottom plate 3 is provided with a notch, the two fixing components are respectively arranged on two sides of the notch, the fixing components include a fixing column 23, a sleeve 24, a third spring 25 and a glass bead screw 26, the fixing column 23 is arranged in the notch, the sleeve 24 is sleeved on the fixing column 23, the sleeve 24 is slidably connected with the fixing column 23, the third spring 25 is sleeved on the fixing column 23, the third spring 25 is located between the notch and the sleeve 24, one end of the third spring 25 is connected with the notch, the other end of the third spring 25 is connected with the sleeve 24, the third spring 25 is in a compressed state, the glass bead screw 26 is arranged in the fixing column 23, a ball of the glass bead screw 26 abuts against one end of the sleeve 24, two ends of the rotating rod 22 are respectively positioned in two sleeves 24 of two fixed components, and the rotating rod 22 is connected with the sleeves 24 in a sliding manner.

When the wire coil 4 wound with the steel wire needs to be replaced again after the steel wire on the wire coil 4 is cut, pulling the two sleeves 24 to enable the sleeves 24 to be moved away from the rotating rod 22, the rotating rod 22 is not blocked by the sleeves 24, and the wire coil 4 can be taken off, wherein the force for pulling the sleeves 24 is greater than the restoring force of the springs in the glass bead screws 26, so that the sleeves 24 can move to press down the balls of the glass bead screws 26, and the movement of the sleeves 24 can be realized, along with the movement of the sleeves 24, the sleeves 24 move to the other side of the glass bead screws 26, at the moment, the balls of the glass bead screws 26 are not blocked by the sleeves 24, and can be popped out under the restoring force of the springs to block the sleeves 24, so that the sleeves 24 keep the disengaged state of the rotating rod 22, then placing the wire coil 4 wound with the steel wire between the two fixed columns 23, then pulling the sleeves 24 again to enable the glass bead screws 26 to be pressed, at the moment, the third spring 25 is in a compressed state, and the restoring force of the third spring 25 generates an outward pushing force on the sleeve 24 so as to enable the sleeve 24 to be sleeved on the rotating rod 22 again, so that the rotating rod 22 is fixed, and the installation and the fixation of the wire coil 4 are realized.

In order to achieve a better limiting effect on the sleeve 24, there are two bead screws 26, and the two bead screws 26 are respectively disposed on two sides of the fixing post 23.

In order to reduce friction, pulleys 30 are arranged at one end, located in the sleeve 24, of the fixed column 23, two pulleys 30 are arranged on two sides of the fixed column 23, annular grooves are formed in the rotating rod 22, the pulleys 30 are located in the annular grooves, and the pulleys 30 are connected with the annular grooves in a sliding mode.

When the device uses, realize fixing of drum 4 through two fixed subassemblies, pass centre gripping subassembly and fixed pipe 31 with the rigid wire, straighten the rigid wire through centre gripping subassembly and fixed pipe 31, through operation drive assembly, drive assembly drive centre gripping subassembly is rotatory to realize the conveying of rigid wire, it is rotatory through drive assembly drive thrust unit, thrust unit drive shearing unit intermittent type removes, thereby realize the intermittent type of rigid wire and cut, thereby realize the batch production of rigid wire.

Compared with the prior art, this wire batch shearing mechanism with function of straightening out with fingers, realize the fixed of drum 4 through fixed establishment, realize straightening out with fingers, conveying and shearing of wire through shearing mechanism, compare with current shearing mechanism, this shearing mechanism can realize the conveying of wire with fingers with straight and shearing through an output, the energy has been saved, and through the linkage of drive assembly with centre gripping subassembly and shearing component, realize straightening out with fingers with shearing on line of wire with fingers with straight, this linkage adopts pure mechanical structure simultaneously, the use of electronic component such as sensor has been avoided, the stability and the life of device have been improved, compare with current fixed establishment, this fixed establishment can realize the fixed of drum 4 through simple push-and-pull, the use of instruments such as electric drill has been avoided, the dismouting has been made things convenient for.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The batch shearing device for the steel wires with the straightening function is characterized by comprising a base (1), a support rod (2), a bottom plate (3), a wire coil (4), a shearing mechanism and a fixing mechanism, wherein the bottom plate (3) is arranged above the base (1) through the support rod (2), the wire coil (4) is arranged at one end of the bottom plate (3), the shearing mechanism is arranged on the bottom plate (3), and the fixing mechanism is arranged on the wire coil (4);

shear mechanism and include drive assembly, centre gripping subassembly and shearing subassembly, drive assembly includes motor (5), drive shaft (6), runner (7), pivot (8) and tight pulley (9), motor (5) level sets up on base (1), install on motor (5) drive shaft (6), pivot (8) set up on bottom plate (3), pivot (8) are parallel with drive shaft (6), runner (7) have two, and two runner (7) overlap respectively and establish on drive shaft (6) and pivot (8), and two runner (7) connect with drive shaft (6) and pivot (8) key-type respectively, and two runner (7) are connected through belt transmission, tight pulley (9) cover is established on pivot (8), tight pulley (9) and pivot (8) key-type connection, centre gripping subassembly includes locating lever (10) Locating piece (11), first spring (12), location axle (13) and locating wheel (14), locating lever (10) set up on bottom plate (3), be equipped with the constant head tank on locating lever (10), locating piece (11) are located the constant head tank, locating piece (11) and constant head tank sliding connection, first spring (12) set up in the constant head tank, the one end and the constant head tank of first spring (12) are connected, the other end and locating piece (11) of first spring (12) are connected, first spring (12) are in compression state, locating wheel (14) cover is established on location axle (13), locating wheel (14) and location axle (13) key-type connection, locating wheel (14) support with fixed gear (9) and lean on, shearing assembly includes shearing unit and pushing unit, shearing unit includes clamping bar (15), Blade (16) and second spring (17), clamping bar (15) have two, two clamping bar (15) cross arrangement, the intersection of two clamping bar (15) is articulated, the articulated department of two clamping bar (15) is equipped with the torsional spring, blade (16) have two, two blade (16) set up respectively on two clamping bar (15), two blade (16) just to setting up, be equipped with the notch on bottom plate (3), clamping bar (15) are equipped with the one end of blade (16) and pass the notch, second spring (17) set up the one end of keeping away from blade (16) in clamping bar (15), the both ends of second spring (17) are connected with two clamping bar (15) respectively, second spring (17) are in tensile state, the promotion unit includes fifth wheel (18), fixed axle (19), cam (20) and push rod (21), fixed axle (19) set up the one side in drive shaft (6), the fixed shaft (19) is parallel to the driving shaft (6), the number of the connecting wheels (18) is two, the two connecting wheels (18) are respectively sleeved on the fixed shaft (19) and the driving shaft (6), the two connecting wheels (18) are respectively in key connection with the fixed shaft (19) and the driving shaft (6), the two connecting wheels (18) are in transmission connection through a belt, the cam (20) is sleeved on the fixed shaft (19), the cam (20) is connected with the fixed shaft (19) in a key way, the push rod (21) is arranged between the two clamping rods (15), the push rod (21) is positioned on one side of the clamping rods (15) far away from the blade (16), the clamping rods (15) are provided with limiting grooves, two ends of the push rod (21) are respectively positioned in the two limiting grooves of the two clamping rods (15), the push rod (21) is connected with the limiting groove in a sliding mode, and the cam (20) abuts against the push rod (21);

the fixing mechanism comprises a rotating rod (22) and two fixing assemblies, the wire coil (4) is sleeved on the rotating rod (22), the wire coil (4) is in key connection with the rotating rod (22), a notch is formed in the bottom plate (3), the two fixing assemblies are respectively arranged on two sides of the notch, each fixing assembly comprises a fixing column (23), a sleeve (24), a third spring (25) and a glass bead screw (26), the fixing column (23) is arranged in the notch, the sleeve (24) is sleeved on the fixing column (23), the sleeve (24) is in sliding connection with the fixing column (23), the third spring (25) is sleeved on the fixing column (23), the third spring (25) is located between the notch and the sleeve (24), one end of the third spring (25) is connected with the notch, the other end of the third spring (25) is connected with the sleeve (24), and the third spring (25) is in a compressed state, the glass bead screw (26) is arranged in the fixed column (23), a ball of the glass bead screw (26) abuts against one end of the sleeve (24), two ends of the rotating rod (22) are respectively located in the two sleeves (24) of the two fixed assemblies, and the rotating rod (22) is connected with the sleeve (24) in a sliding mode.

2. The batch shearing device for steel wires with straightening function according to claim 1, characterized in that a slide block (27) is arranged on the positioning block (11), a chute is arranged in the positioning groove, the slide block (27) is positioned in the chute, and the slide block (27) is connected with the chute in a sliding manner.

3. The batch shearing device for steel wires with straightening function according to claim 2, characterized in that the number of the sliding blocks (27) is two, the two sliding blocks (27) are respectively arranged at two sides of the positioning block (11), the number of the sliding grooves is two, and the two sliding blocks (27) are respectively positioned in the two sliding grooves.

4. The steel wire batch shearing device with the straightening function according to claim 1, wherein the number of the positioning rods (10) is two, the two positioning rods (10) are respectively arranged at two ends of the positioning shaft (13), the number of the positioning blocks (11) is two, the two positioning blocks (11) are respectively arranged in the two positioning grooves of the two positioning rods (10), and the two positioning shafts (13) respectively penetrate through the two positioning blocks (11).

5. The batch shearing device for steel wires with the straightening function according to claim 1, wherein a limiting block (28) is arranged at one end of the push rod (21) positioned in a limiting groove, a strip-shaped groove is arranged in the limiting groove, the limiting block (28) is positioned in the strip-shaped groove, and the limiting block (28) is slidably connected with the strip-shaped groove.

6. The batch shearing device for steel wires with the straightening function as claimed in claim 5, wherein the number of the limiting blocks (28) is two, the two limiting blocks (28) are respectively arranged on two sides of the push rod (21), the number of the strip-shaped grooves is two, and the two limiting blocks (28) are respectively positioned in the two strip-shaped grooves.

7. The steel wire batch shearing device with the straightening function according to claim 6, wherein a roller (29) is arranged on the limiting block (28), a clamping groove is formed in the strip-shaped groove, the roller (29) is located in the clamping groove, and the roller (29) is in rolling connection with the clamping groove.

8. The steel wire batch shearing device with the straightening function as claimed in claim 1, wherein the number of the bead screws (26) is two, and the two bead screws (26) are respectively arranged on two sides of the fixing column (23).

9. The steel wire batch shearing device with the straightening function as claimed in claim 1, wherein one end of the fixed column (23) positioned in the sleeve (24) is provided with two pulleys (30), the two pulleys (30) are respectively arranged on two sides of the fixed column (23), the rotating rod (22) is provided with an annular groove, the pulleys (30) are positioned in the annular groove, and the pulleys (30) are in sliding connection with the annular groove.

10. The batch shearing device for steel wires with straightening function according to claim 1, characterized in that the bottom plate (3) is provided with a fixed pipe (31).