CN107470545B

CN107470545B - Cutting and forming device of screw forming machine

Info

Publication number: CN107470545B
Application number: CN201710794165.4A
Authority: CN
Inventors: 陈建德
Original assignee: Zhejiang Zhanbang Machinery Co ltd
Current assignee: Zhejiang Zhanbang Machinery Co ltd
Priority date: 2017-09-06
Filing date: 2017-09-06
Publication date: 2023-05-09
Anticipated expiration: 2037-09-06
Also published as: CN107470545A

Abstract

The invention relates to a cutting and forming device of a screw forming machine, which comprises a frame, wherein a blanking cutter, a cutting mechanism, a forming die and a die clamping mechanism are arranged on the frame, the cutting mechanism drives the blanking cutter to cut wires, the die clamping mechanism drives the forming die to clamp the dies, a cutting edge groove matched with the peripheral shape of the wires and a limiting mechanism for limiting the wires on the cutting edge groove are arranged at the cutting edge of the blanking cutter, a cutting position and a processing position are arranged on a moving track of the blanking cutter under the driving of the cutting mechanism, the cutting position corresponds to the position of a wire feeding device, and the processing position corresponds to the position of the forming die. By adopting the scheme, the invention provides the cutting and forming device of the screw forming machine, which has the advantages of simplifying the structure and improving the processing efficiency.

Description

Cutting and forming device of screw forming machine

Technical Field

The invention particularly relates to a screw forming machine, in particular to a cutting forming device of the screw forming machine.

Background

The screw forming machine is forging forming equipment for thickening the top of a bar or a wire rod at room temperature, and is special equipment mainly used for mass production of fasteners such as nuts and bolts. The screw forming machine adopts a cold heading method to heading the heads of the bolts and the screws, so that the cutting work can be reduced as much as possible, the screw forming machine can directly form the required shape and size, a large amount of materials can be saved, the production efficiency can be greatly improved, and the mechanical strength of the headed parts is remarkably improved.

The processing steps of the screw forming machine generally comprise a wire feeding device, a cutting device, a forming device and a discharging device, the coiled wire is conveyed to the cutting device by the wire feeding device, the continuous wire is cut into sections by the cutting device, the wire cut into sections is formed to the required specification for many times by the forming device, and finally the formed wire is conveyed to a unified collecting position by the discharging device, so that all the steps are completed.

Wherein, cutting device includes the cutting drive mechanism of cutting material sword and drive cutting material sword cutting, and forming device includes a plurality of forming die and fixture, and fixture will cut into sections the linear material and pass in proper order between each forming die, by each mould extrusion in proper order, traditional cutting device and forming device are two independent devices, have not only increased occupation space and the device complexity of equipment, have still prolonged the processing stroke of wire rod, have reduced machining efficiency.

Disclosure of Invention

Aiming at the defects existing in the prior art, the invention aims to provide a cutting and forming device of a screw forming machine, which simplifies the structure and improves the processing efficiency.

In order to achieve the above purpose, the present invention provides the following technical solutions: the wire cutting machine comprises a frame, wherein the frame is provided with a cutting knife, a cutting mechanism, a forming die and a die clamping mechanism, the cutting mechanism drives the cutting knife to cut wires, and the die clamping mechanism drives the forming die to clamp, and the wire cutting machine is characterized in that: the cutting edge of the blanking knife is provided with a cutting edge groove matched with the peripheral shape of the wire rod and a limiting mechanism limiting the wire rod on the cutting edge groove, the cutting knife is provided with a cutting position and a processing position on a moving track driven by the cutting mechanism, the cutting position corresponds to the position of the wire rod feeding device, and the processing position corresponds to the position of the forming die.

Through adopting above-mentioned technical scheme, offer the cutting edge groove in the cutting edge department of blank sword, after the wire rod stretches into the cutting edge groove, cut the wire rod by the cutting edge groove, after the cutting is accomplished, stop gear cooperation cutting groove transmits the wire rod, directly transmits the shaping processing position to the wire rod to save preceding fixture, make the equipment structure simplify, still save fixture from cutting mechanism centre gripping wire rod to forming die's time, further shortened the wire rod stroke, improved machining efficiency.

The invention is further provided with: the limiting mechanism comprises a limiting plate and a positioning assembly, the limiting plate corresponds to the opening position of the cutting edge groove and enables the opening of the cutting edge groove to be closed, the positioning assembly comprises a displacement guide piece and a positioning resetting piece, the displacement guide piece is used for enabling the limiting plate to be far away from the opening of the cutting edge groove when a wire material blocks the limiting plate to move along with the blanking knife, and the positioning resetting piece resets the limiting plate along the displacement guide piece to the opening of the cutting edge groove.

Through adopting above-mentioned technical scheme, add the positioning subassembly, make the limiting plate can regard as the support of wire rod, make the wire rod stably reach the processing station, simultaneously, when the blank sword return to cutting position, automatic opening can not hinder the processing of wire rod and the return of blank sword, improves stop gear's practicality, and the displacement guide can be the side of supply limiting plate rail way, also can be the articulated shaft in the frame.

The invention is further provided with: the displacement guide piece is a guide rod for sliding the limiting plate, the limiting plate is provided with a sliding hole for the guide rod to pass through, a swinging gap for the limiting plate to swing relative to the guide rod is arranged between the sliding hole and the guide rod, the rack is provided with an extrusion piece, one end of the limiting plate is a limiting end corresponding to the cutting edge groove, the other end of the limiting plate is a swinging end, and when the blanking cutter is located at a cutting position, the extrusion piece extrudes the swinging end to enable the limiting end to swing away from the cutting edge groove.

Through adopting above-mentioned technical scheme, add the extrusion piece, when the cutting blade cutting wire rod, avoid the impact force that the cutting blade is used for the cutting to produce the effect to the limiting plate simultaneously to extension limiting plate's life plays the guard action to the limiting plate.

The invention is further provided with: the forming die comprises wire rod placing parts and wire rod forming parts which are oppositely arranged, the wire rod placing parts are provided with placing holes for pushing wires, the wire rod forming parts are provided with forming heads for extruding wire rod forming, the wire rod placing parts comprise a first wire rod placing part and a second wire rod placing part, the frame is provided with a switching track, a switching seat and a switching driving assembly, the switching track is arranged in the horizontal vertical direction of the die assembly direction of the forming die, the first wire rod placing part and the second wire rod placing part are arranged in the switching seat in the rail direction of the switching track, and the switching driving assembly drives the switching seat to move in the switching track, so that the first wire rod placing part and the second wire rod placing part are respectively corresponding to switching of a blanking cutter.

Through adopting above-mentioned technical scheme, utilize the removal of switching seat, make two wire rods place the portion and switch with the blank sword and correspond, make single wire rod place the portion have enough time to process the wire rod between twice cutting blanking, utilize time interval furthest, improve machining efficiency, and make cutting mechanism need not to shut down and wait.

The invention is further provided with: the die assembly mechanism comprises a die assembly track, a die assembly seat and a die assembly driving assembly, the die assembly track is arranged along the die assembly direction of the forming die, the die assembly driving assembly drives the die assembly seat to move on the die assembly track, the wire forming part comprises a first wire forming part, a second wire forming part and a third wire forming part, the first wire forming part, the second wire forming part and the third wire forming part are arranged on the die assembly seat along the track direction of the switching track, the switching driving assembly drives the switching seat to move, and when the position of the blanking cutter corresponds to the position of the first wire placing part, the first wire placing part corresponds to the position of the first wire forming part, and the position of the second wire placing part corresponds to the position of the second wire forming part; when the switching driving assembly drives the switching seat to move and the blanking cutter corresponds to the second wire rod placing part, the first wire rod placing part corresponds to the second wire rod forming part, the second wire rod placing part corresponds to the third wire rod forming part, and the forming head of the first wire rod forming part is identical to the forming head of the third wire rod forming part in shape.

Through adopting above-mentioned technical scheme, traditional wire rod carries out secondary operation and needs to consume two sets of moulds, two wire rod shaping portions that two wire rod shaping portions and shaping head are different promptly, occupy a large amount of spaces, increase the structure complexity, the removal of utilizing the switching seat, wire rod shaping portion has played the function of transmission wire rod when being located wire rod shaping portion cooperation processing wire rod, single wire rod portion of locating can with two wire rod shaping portion cooperation, realize the secondary shaping processing of wire rod, forming die's structure has been simplified, in addition, the idle second wire rod shaping seat of rational utilization, when first wire rod shaping portion corresponds processing with first wire rod portion, second wire rod shaping portion corresponds processing with second wire rod shaping seat, when second wire rod shaping portion corresponds processing with second wire rod shaping portion, above-mentioned structure, two wire rod portions of locating only need set up a second wire rod shaping portion that is used for the second processing procedure, further make the structure obtain simplifying, further rational utilization process time is poor, improve machining efficiency.

The invention is further provided with: the switching drive assembly comprises a transmission rod, a transmission seat, a transmission block and a transmission seat telescopic assembly, wherein the transmission seat is fixed on the frame, the transmission rod is arranged along the direction of a switching track, one end of the transmission rod is in linkage with the switching seat, the other end of the transmission rod extends into the transmission seat, the transmission seat is provided with a transmission hole in a penetrating manner, the transmission block telescopic assembly drives the transmission block to reciprocate in the transmission hole, the transmission block is provided with a transmission track, the transmission track is arranged along the tangential direction of the transmission rod, the transmission track is sequentially provided with a first part close to the switching seat, a second part connected with the first part and the third part and a third part far away from the switching seat along the moving direction of the transmission block, and the end part of the transmission rod extending to the transmission seat is provided with a sliding block sliding in the transmission track.

Through adopting above-mentioned technical scheme, the flexible subassembly of drive transmission piece reciprocating motion is in the transmission hole, and the different positions of control transmission track are relative with the piece that slides to adjust the relative orbital position of switching seat, realize that different wire rod place the portion and the blank sword is relative, and different wire rod place the portion and different wire rod shaping portion is relative.

The invention is further provided with: the switching seat be provided with ejection mechanism, ejection mechanism include liftout pole and liftout pole drive assembly, the liftout pole slide in placing the hole, liftout pole drive assembly drive with the corresponding liftout pole of second wire rod shaping portion position remove, with the wire rod ejecting in the hole of placing.

Through adopting above-mentioned technical scheme, ejector pin is in the course of working, and cooperation shaping head shaping processing is located the wire rod of placing the hole, and after the wire rod processing was accomplished, by to placing the hole removal with the wire rod ejection after the processing was accomplished place the hole, realizes the ejection of compact function.

The invention is further provided with: the ejector rod driving assembly comprises an ejector shaft, an ejector block and an ejector shaft driving assembly, the ejector shaft is arranged on the frame in a rotating mode along the horizontal vertical direction of the placement hole, the ejector block is arranged on the periphery of the ejector shaft, the ejector shaft driving assembly drives the ejector shaft to rotate in a reciprocating mode, the ejector block swings relatively to the ejector rod in a reciprocating mode, when the ejector block is close to the ejector rod, the ejector rod is pushed to place the wire rod in the ejection hole, and the switching seat is provided with an ejector rod resetting piece for resetting the ejector rod to the ejector block.

Through adopting above-mentioned technical scheme, by the reciprocal swing of liftout piece relative liftout pole, when the relative liftout pole swing of liftout piece, promote the liftout pole and place the hole with the wire rod is ejecting, when the liftout piece is kept away from the liftout pole swing, reset piece resets liftout pole to the liftout piece, returns to initial position promptly, and the cooperation shaping head realizes shaping processing.

The invention is further provided with: the machine frame below that is located the tip of placing hole wire rod by liftout mechanism ejection of compact is provided with ejection of compact track, ejection of compact track extend to the machine frame outside, the machine frame outside along with keeping away from the direction height of placing the hole and reducing gradually.

Through adopting above-mentioned technical scheme, by the ejecting wire rod of liftout mechanism can fall into ejection of compact track, utilizes ejection of compact orbital difference in height, and the wire rod moves to the frame outside along with ejection of compact track, realizes the function of automatic discharging, simplifies equipment structure.

The invention is further provided with: the cutting mechanism include cutting seat, cutting pendulum rod, blank sword mount pad and cutting drive assembly, the blank sword install in the blank sword mount pad, the vertical swing of cutting pendulum rod set up in the cutting seat, its one end is as the drive end with the linkage of cutting drive assembly, another point is as the driving end with the blank sword mount pad linkage, the cutting seat along vertical cutting guide rail that is provided with the supply blank sword mount pad and slides, blank sword mount pad and driving end between be provided with the linkage round pin that passes both, blank sword mount pad along vertical first bar linkage groove that is provided with the supply linkage round pin and slide, the driving end be provided with the second bar linkage groove that supplies the linkage round pin to slide along cutting pendulum rod length direction, the cutting drive assembly include altitude mixture control seat, altitude mixture control piece and altitude mixture control piece expansion assembly, altitude mixture control seat run through and be provided with the hole, altitude mixture control piece drive altitude mixture control piece move and be provided with the regulation hole, altitude mixture control piece be provided with and be provided with the linkage round trip to the first side of adjusting surface and the first end of adjusting surface, the first zone of adjusting surface and the end of adjusting surface setting up and the first zone of adjusting surface and the reset zone, the first zone of adjusting surface and the end zone of adjusting surface and the cutting zone of adjusting surface setting up to the reset.

Through adopting above-mentioned technical scheme, the flexible subassembly of altitude mixture control piece drive altitude mixture control piece reciprocating motion in the regulation hole, and the different regions of control regulation face offset with altitude mixture control pole, the altitude mixture control pole promptly, when rising with altitude mixture control pole articulated driving end, the driving end drives the whereabouts of blank sword mount pad, realizes the action of cutting.

The invention is further described below with reference to the drawings and detailed description.

Drawings

FIG. 1 is a perspective view of a first embodiment of the present invention;

FIG. 2 is an enlarged view of A in FIG. 1;

FIG. 3 is a perspective view of a switching drive assembly according to an embodiment of the present invention;

FIG. 4 is a second perspective view of an embodiment of the present invention;

FIG. 5 is an enlarged view of B in FIG. 4;

FIG. 6 is a perspective view of a ejector pin driving assembly according to an embodiment of the present invention;

FIG. 7 is a perspective view of a clamp drive assembly in accordance with an embodiment of the present invention;

FIG. 8 is a perspective view of a cutting mechanism in accordance with an embodiment of the present invention;

FIG. 9 is an assembled perspective view of a cutting block and a cutter mounting block in accordance with an embodiment of the present invention;

fig. 10 is an assembled perspective view of the blanking cutter mounting seat and the limiting mechanism with the positioning reset member removed in the embodiment of the present invention.

Detailed Description

As shown in fig. 1-10, the invention discloses a cutting forming device of a screw forming machine, which comprises a frame 1, wherein a blanking cutter 2, a cutting mechanism 3, a forming die 4 and a die clamping mechanism 5 are arranged on the frame 1, the cutting mechanism 3 drives the blanking cutter 2 to cut wires, the die clamping mechanism 5 drives the forming die 4 to clamp the wires, a cutting edge groove 21 matched with the peripheral shape of the wires and a limiting mechanism for limiting the wires on the cutting edge groove 21 are arranged at the cutting edge of the blanking cutter 2, a cutting position and a processing position are arranged on a moving track of the blanking cutter 2 under the driving of the cutting mechanism 3, the cutting position corresponds to the position of a wire feeding device, the processing position corresponds to the position of the forming die 4, the cutting edge groove 21 is formed at the cutting edge of the blanking cutter 2, after the wires are stretched into the cutting edge groove 21, the cutting is completed, the limiting mechanism is matched with the cutting edge groove to transmit the wires, and is directly transmitted to the forming processing position of the wires, thereby the prior clamping mechanism is omitted, the structure of the device is simplified, the time of the clamping mechanism is clamped from the cutting mechanism 3 to the forming die 4, the advancing efficiency is further shortened, the advancing efficiency is further improved, the advancing distance of the wire is further improved, the advancing device is further shortened, the advancing distance is matched with the advancing position of a limit block 8, and the advancing device is matched with the length of a thread hole 8, and the advancing position of a thread hole is matched with the advancing position of a thread 8, and the advancing device is provided with a thread hole, and the advancing position is matched with the advancing position with the thread hole 8.

The limiting mechanism comprises a limiting plate 22 and a positioning component, wherein the limiting plate 22 corresponds to the opening position of the cutting edge groove 21 and enables the opening of the cutting edge groove 21 to be closed, the positioning component comprises a displacement guide piece and a positioning resetting piece 24, the displacement guide piece is used for enabling the limiting plate 22 to be far away from the opening of the cutting edge groove 21 when a wire material is used for preventing the limiting plate 22 from moving along with the cutting edge 2, the positioning resetting piece 24 resets the limiting plate 22 towards the opening of the cutting edge groove 21 along the displacement guide piece, the positioning component is additionally arranged, the limiting plate 22 can be used as a support of a wire material, the wire material can stably reach a processing station, meanwhile, when the cutting edge 2 returns to a cutting position, the wire material is automatically opened, the processing of the wire material cannot be prevented, the return of the cutting edge groove 2 is not blocked, the practicability of the limiting mechanism is improved, the displacement guide piece can be a guide rod for laterally moving the limiting plate 22, the positioning guide rod can also be a hinge shaft hinged to the frame 1, in a specific embodiment of the invention, 23 is preferred, and the positioning resetting piece 24 is a cylindrical spring.

The displacement guide piece is a guide rod 23 for sliding a limiting plate, the limiting plate 22 is provided with a sliding hole 221 for the guide rod 23 to pass through, a swinging gap 2211 for the limiting plate 22 to swing relative to the guide rod 23 is arranged between the sliding hole 221 and the guide rod 23, the frame 1 is provided with an extrusion piece 38, one end of the limiting plate 22 is a limiting end 222 corresponding to a cutting edge groove, the other end is a swinging end 223, when the blanking cutter 2 is positioned at a cutting position, the extrusion piece 38 extrudes the swinging end 223, the limiting end 222 swings away from the cutting edge groove 21, the extrusion piece 38 is additionally arranged, when the blanking cutter 2 cuts wires, the impact force of the blanking cutter 2 for cutting is prevented from acting on the limiting plate 22, the service life of the limiting plate 22 is prolonged, the limiting plate 22 is protected, the extrusion piece 38 can be arranged at a cutting seat 31, the end of the extrusion piece 38 corresponding to the swinging end 223 is provided with an extrusion roller 381 for reducing friction, the cutting seat 31 is provided with an adjusting bolt 382 for adjusting the position of the extrusion piece 38, and the swinging end 223 is provided with a guide surface 2231 in rolling fit with the extrusion roller 381.

The forming die 4 comprises a wire rod placing part and a wire rod forming part which are oppositely arranged, the wire rod placing part is provided with a placing hole 411 for pushing a wire rod, the wire rod forming part is provided with a forming head 441 for extruding the wire rod to form, the wire rod placing part comprises a first wire rod placing part 41 and a second wire rod placing part 42, the frame 1 is provided with a switching track 61, a switching seat 6 and a switching driving component, the switching track 61 is arranged in the horizontal vertical direction of the die assembly direction of the forming die 4, the first wire rod placing part 41 and the second wire rod placing part 42 are arranged in the switching seat 6 along the track direction of the switching track 61, the switching driving component drives the switching seat 6 to move in the switching track 61, the first wire rod placing part 41 and the second wire rod placing part 42 are respectively corresponding to the switching of the blanking cutter 2, the two wire rod placing parts are corresponding to the switching of the blanking cutter 2 by utilizing the movement of the switching seat 6, the single wire rod placing part has enough time to process the wire rod between the cutting blanking twice, the time interval is utilized to the maximum, the processing efficiency is improved, and the cutting mechanism 3 does not need to wait for the machine to stop.

The die assembly mechanism 5 comprises a die assembly track 51, a die assembly seat 52 and a die assembly driving component, the die assembly track 51 is arranged along the die assembly direction of the forming die 4, the die assembly driving component drives the die assembly seat 52 to move on the die assembly track 51, the wire forming part comprises a first wire forming part 43, a second wire forming part 44 and a third wire forming part 45, the first wire forming part, the second wire forming part and the third wire forming part are arranged on the die assembly seat along the track direction of the switching track, the switching driving component drives the switching seat 6 to move, and when the position of the blanking cutter 2 corresponds to the position of the first wire placing part 41, the position of the first wire placing part 41 corresponds to the position of the first wire forming part 43, and the position of the second wire placing part 42 corresponds to the position of the second wire forming part 44; when the switching driving assembly drives the switching seat 6 to move and the position of the cutting knife 2 corresponds to that of the second wire rod placing part 42, the first wire rod placing part 41 corresponds to that of the second wire rod forming part 44, the second wire rod placing part 42 corresponds to that of the third wire rod forming part 45, the forming head 441 of the first wire rod forming part 43 is identical to that of the forming head 441 of the third wire rod forming part 45 in shape, two dies are needed to be consumed for secondary machining of wires in the prior art, namely, two wire rod forming parts different in two wire rod placing parts and the forming head 441 occupy a large amount of space, the structural complexity is increased, the wire rod placing part and the wire rod forming part cooperate to machine wires by utilizing the movement of the switching seat 6, the single wire rod placing part can cooperate with the two wire rod forming parts, the secondary forming machining of wires is realized, the structure of the forming die 4 is simplified, in addition, the idle second wire rod forming seat is reasonably utilized, the second wire rod forming part 44 and the second wire rod forming seat are correspondingly machined when the first wire rod forming part 43 and the first wire rod placing part 41 are correspondingly machined, the second wire rod forming part 44 is reasonably, the first wire rod forming part is arranged on the second wire rod forming part 44, the first wire rod forming part is reasonably, and the first wire rod forming part is arranged on the second wire rod forming part is further, and the wire rod forming part is reasonably machined by utilizing the first wire rod forming part and the wire rod forming part, and the wire rod forming part is further arranged on the wire rod forming part 4, and the wire rod forming part is further correspondingly because the wire rod forming part 4 is correspondingly different than the wire rod forming part 4.

The switching driving assembly comprises a driving rod 62, a driving seat 63, a driving block 64 and a driving seat telescopic assembly, wherein the driving seat 63 is fixed on the frame 1, the driving rod 62 is arranged along the direction of the switching track 61, one end of the driving rod 62 is in linkage with the switching seat 6, the other end of the driving rod extends into the driving seat 63, the driving seat 63 is provided with a driving hole 631 in a penetrating way, the driving block telescopic assembly drives the driving block 64 to reciprocate in the driving hole 631, the driving block 64 is provided with a driving track 641, the driving track is arranged along the tangential direction of the driving rod, the driving track 641 is sequentially provided with a first part 6411 close to the switching seat 6, a second part 6412 connected with the first part 6411 and the third part 6413 and a third part 6413 far away from the switching seat 6, the end part of the driving rod 62 extending to the driving seat 63 is provided with a sliding block 621 sliding on the driving track 641, the transmission block expansion assembly drives the transmission block 64 to reciprocate in the transmission hole 631, different positions of the transmission rail 641 are controlled to be opposite to the sliding block 621, so that the position of the switching seat 6 relative to the switching rail 61 is adjusted, different wire placing parts are opposite to the blanking knife 2, and different wire placing parts are opposite to different wire forming parts, the sliding block 621 is provided with a roller 622 sliding on the transmission rail 641, the frame 1 is provided with a driving motor and an auxiliary driving shaft driven by the driving motor, the periphery of the auxiliary driving shaft 7 is provided with a transmission disc 71 which synchronously rotates, the transmission disc 71 is eccentrically provided with a transmission column 711, the transmission seat expansion assembly comprises a telescopic linkage rod 65, one end of the telescopic linkage rod 65 is in running fit with the transmission column 711, and the other end of the telescopic linkage rod 65 is hinged to the transmission block.

The switching seat 6 is provided with a material ejection mechanism, the material ejection mechanism comprises a material ejection rod 62 and a material ejection rod driving assembly, the material ejection rod 62 slides in the placing hole 411, the material ejection rod driving assembly drives the material ejection rod 62 corresponding to the position of the second wire forming part 44 to move, the wire is ejected from the placing hole 411, the material ejection rod 62 is matched with the forming head 441 to form and process the wire positioned in the placing hole 411 in the processing process, and after the wire processing is completed, the wire is moved to the placing hole 411 to eject the processed wire out of the placing hole 411, so that the discharging function is realized.

The ejector rod driving assembly comprises an ejector rod 63, an ejector block 631 and an ejector rod driving assembly, wherein the ejector rod 63 is arranged on the frame 1 in a rotating manner along the horizontal vertical direction of the placement hole 411, the ejector block 631 is arranged on the periphery of the ejector rod 63, the ejector rod driving assembly drives the ejector rod 63 to reciprocate, the ejector block 631 reciprocates relative to the ejector rod 62, when the ejector block 631 approaches the ejector rod 62, the ejector rod 62 is pushed to eject the wire rod to the placement hole 411, the switching seat 6 is provided with an ejector rod resetting piece for resetting the ejector rod 62 to the ejector block 631, the ejector rod 631 reciprocates relative to the ejector rod 62, when the ejector block 631 oscillates relative to the ejector rod 62, the ejector rod 62 is pushed to eject the wire rod to the placement hole 411, when the ejector block 631 oscillates away from the ejector rod 62, the ejector rod 62 is reset to the ejector rod 631, namely, the ejector rod resetting piece returns to the initial position, the forming head 441 is matched for forming, the frame 1 is provided with a main driving shaft 53 which is linked with an auxiliary driving shaft through gears, the periphery of the main driving shaft 53 is provided with a liftout cam 532, a liftout shaft driving assembly comprises a liftout swinging rod 67, a liftout linkage rod 68 and a swinging arm 632, the swinging arm 632 is arranged on the periphery of the liftout shaft 63, the liftout swinging rod 67 is rotatably arranged on the frame 1, one end of the liftout swinging rod 67 abuts against the liftout cam 532, the other end is used as a linkage end, one end of the liftout linkage rod 68 is hinged with the linkage end of the liftout swinging rod 67, the other end is arranged in linkage with the swinging arm 632, the swinging arm 632 is provided with a swinging arm strip groove 633 for sliding the end of the liftout linkage rod 68 along the swinging arm 632, the frame 1 is provided with a swinging rod resetting piece 671 for resetting the end abutting against the transmission cam 81 towards the transmission cam 81, and the swinging rod resetting piece 671 is preferably a columnar spring.

The frame 1 is located the below of placing hole 411 wire rod by the ejecting tip of liftout mechanism and is provided with ejection of compact track 7, and ejection of compact track 7 extends to the frame 1 outside, and the frame 1 outside is along with keeping away from the direction height of placing hole 411 and is reduced gradually, and the wire rod that is ejected by liftout mechanism can fall into ejection of compact track 7, utilizes the difference in height of ejection of compact track 7, and the wire rod moves to the frame 1 outside along with ejection of compact track 7, realizes the function of automatic discharging, simplifies the equipment structure.

The mold closing driving assembly comprises a main driving shaft 53, a driven shaft 52, a linkage rod 54 and a rotating assembly, wherein the main driving shaft 53 is rotatably arranged on the machine frame 1 along the horizontal and vertical direction of the mold closing direction of the forming mold 4, the rotating assembly is arranged on the machine frame 1 and drives the main driving shaft 53 to rotate, an eccentric part 531 is eccentrically arranged on the main driving shaft 53 corresponding to the mold closing seat 52, the driven shaft 52 is arranged in parallel with the main driving shaft 53 and is fixed on the mold closing seat 52, one end of the linkage rod 54 is in rotary fit with the eccentric part 531, the other end of the linkage rod is in rotary fit with the driven shaft 52, and when the eccentric part 531 of the main driving shaft 53 eccentrically rotates, the linkage rod 54 in rotary fit with the eccentric part 531 is driven to eccentrically rotate, so that the driven shaft 52 fixed on the mold closing seat 52 is driven to move forwards and backwards, and the mold closing action of the mold closing seat 52 is realized.

The cutting mechanism 3 comprises a cutting seat 31, a cutting swing rod 32, a cutter mounting seat 33 and a cutting driving component, the cutter 2 is mounted on the cutter mounting seat 33, the cutting swing rod 32 is vertically arranged on the cutting seat 31 in a swinging way, one end of the cutting swing rod is used as a driving end 321 linked with the cutting driving component, the other end of the cutting swing rod is used as a driving end 322 linked with the cutter mounting seat 33, the cutting seat 31 is vertically provided with a cutting guide rail 311 for sliding the cutter mounting seat 33, a linkage pin 331 passing through the cutting guide rail and the cutting guide rail is arranged between the cutter mounting seat 33 and the driving end 322, the cutter mounting seat 33 is vertically provided with a first bar linkage groove 332 for sliding the linkage pin 331, the driving end 322 is provided with a second bar linkage groove 323 for sliding the linkage pin 331 along the length direction of the cutting swing rod 32, the cutting driving component comprises a height adjusting seat 34, a height adjusting block 35, a height adjusting rod 36 and a height adjusting block telescopic component, the height adjusting seat 34 is provided with an adjusting hole 341 in a penetrating manner, the telescopic component of the height adjusting block 35 drives the height adjusting block 35 to reciprocate in the adjusting hole 352, the height adjusting block 35 is provided with a wavy adjusting surface 351, the adjusting surface 351 is provided with a first area 3511 higher than a third area 3513 along the moving direction of the height adjusting block 35, a second area 3512 linking the first area 3511 and the third area 3513 and a third area 3513 lower than the first area 3511, one end of the height adjusting rod 36 is hinged with the driving end 321 of the cutting swing rod 32, the other end of the height adjusting rod abuts against the adjusting surface 351, the height adjusting seat 34 is provided with a sliding channel 342 for vertically sliding the height adjusting rod 36, the height adjusting seat 34 is provided with an adjusting reset piece 362 for resetting the end of the height adjusting rod 36 abutting against the adjusting surface 351 to the adjusting surface 351, the adjusting reset piece 362 is preferably a columnar spring, the height adjusting block telescopic component drives the height adjusting block 35 to reciprocate in the adjusting hole 352, different areas of the control adjusting surface 351 are propped against the height adjusting rod 36, namely, the height of the height adjusting rod 36 is adjusted, when the driving end 321 hinged with the height adjusting rod 36 ascends, the driving end 322 drives the blanking cutter mounting seat 33 to fall down to realize cutting action, the end of the height adjusting rod 36 propped against the adjusting surface 351 is provided with a height adjusting roller 361, the periphery of the main driving shaft 53 is provided with a synchronous rotating positioning disc 533, the positioning disc 533 is eccentrically provided with a positioning column 534, the cutting driving assembly comprises a cutting linkage rod 37, one end of the cutting linkage rod 37 is provided with a cutting strip-shaped groove 371 for the positioning column 534 to slide along the length direction of the cutting linkage rod 37, the other end of the cutting linkage rod 37 is hinged with the height adjusting block 35, and in addition, the blanking cutter mounting seat 33 is further provided with a guide column 333 penetrating through the cutting seat 31 and a reset spring 334 sleeved on the guide column along the moving direction.

Claims

1. The utility model provides a cutting forming device of screw make-up machine, includes the frame, the frame on be provided with blank sword, cutting mechanism, forming die and locking mechanism, cutting mechanism drive blank sword cutting wire rod, locking mechanism drive forming die locking, its characterized in that: the cutting edge of the cutting knife is provided with a cutting edge groove matched with the peripheral shape of the wire rod and a limiting mechanism for limiting the wire rod to the cutting edge groove, the cutting knife is provided with a cutting position and a processing position on a moving track driven by the cutting mechanism, the cutting position corresponds to the position of the wire rod feeding device, and the processing position corresponds to the position of the forming die;

the limiting mechanism comprises a limiting plate and a positioning component, the limiting plate corresponds to the opening position of the blade groove and enables the opening of the blade groove to be closed, the positioning component comprises a displacement guide piece and a positioning reset piece, the displacement guide piece is used for enabling the limiting plate to be far away from the opening of the blade groove when a wire material blocks the limiting plate to move along with the blanking cutter, and the positioning reset piece resets the limiting plate along the displacement guide piece to the opening of the blade groove;

the displacement guide piece is a guide rod for sliding the limiting plate, the limiting plate is provided with a sliding hole for the guide rod to pass through, a swinging gap for the limiting plate to swing relative to the guide rod is arranged between the sliding hole and the guide rod, the rack is provided with an extrusion piece, one end of the limiting plate is a limiting end corresponding to the cutting edge groove, the other end of the limiting plate is a swinging end, and when the blanking cutter is positioned at a cutting position, the extrusion piece extrudes the swinging end to enable the limiting end to swing away from the cutting edge groove;

the forming die consists of a wire rod placing part and a wire rod forming part which are oppositely arranged, wherein the wire rod placing part is provided with a placing hole for pushing a wire rod, the wire rod forming part is provided with a forming head for extruding the wire rod to form, the wire rod placing part comprises a first wire rod placing part and a second wire rod placing part, the frame is provided with a switching track, a switching seat and a switching driving assembly, the switching track is arranged in the horizontal vertical direction of the die assembly direction of the forming die, the first wire rod placing part and the second wire rod placing part are arranged in the switching seat in the track direction of the switching track, and the switching driving assembly drives the switching seat to move in the switching track and enables the first wire rod placing part and the second wire rod placing part to respectively correspond to the switching of the blanking cutter;

the die assembly mechanism comprises a die assembly track, a die assembly seat and a die assembly driving assembly, the die assembly track is arranged along the die assembly direction of the forming die, the die assembly driving assembly drives the die assembly seat to move on the die assembly track, the wire forming part comprises a first wire forming part, a second wire forming part and a third wire forming part, the first wire forming part, the second wire forming part and the third wire forming part are arranged on the die assembly seat along the track direction of the switching track, the switching driving assembly drives the switching seat to move, and when the position of the blanking cutter corresponds to the position of the first wire placing part, the first wire placing part corresponds to the position of the first wire forming part, and the position of the second wire placing part corresponds to the position of the second wire forming part; the switching driving assembly drives the switching seat to move, and when the position of the blanking cutter corresponds to the position of the second wire rod placing part, the first wire rod placing part corresponds to the position of the second wire rod forming part, the second wire rod placing part corresponds to the position of the third wire rod forming part, and the forming head of the first wire rod forming part is identical to the forming head of the third wire rod forming part in shape;

the switching driving assembly comprises a transmission rod, a transmission seat, a transmission block and a transmission seat telescopic assembly, wherein the transmission seat is fixed on the frame, the transmission rod is arranged along the direction of a switching track, one end of the transmission rod is in linkage with the switching seat, the other end of the transmission rod extends into the transmission seat, the transmission seat is provided with a transmission hole in a penetrating way, the transmission block telescopic assembly drives the transmission block to reciprocate in the transmission hole, the transmission block is provided with a transmission track, the transmission track is arranged along the tangential direction of the transmission rod, the transmission track is sequentially provided with a first part close to the switching seat, a second part connected with the first part and the third part and a third part far away from the switching seat along the moving direction of the transmission block, and the end part of the transmission rod extending to the transmission seat is provided with a sliding block sliding in the transmission track;

the switching seat is provided with a material ejection mechanism, the material ejection mechanism comprises a material ejection rod and a material ejection rod driving assembly, the material ejection rod slides in the placement hole, and the material ejection rod driving assembly drives the material ejection rod corresponding to the position of the second wire forming part to move so as to eject wires from the placement hole;

the ejection rod driving assembly comprises an ejection shaft, an ejection block and an ejection shaft driving assembly, wherein the ejection shaft is rotatably arranged on the frame along the horizontal vertical direction of the placement hole, the ejection block is arranged on the periphery of the ejection shaft, the ejection shaft driving assembly drives the ejection shaft to reciprocally rotate, the ejection block reciprocally swings relative to the ejection rod, and when the ejection block is close to the ejection rod, the ejection rod is pushed to eject a wire rod out of the placement hole;

the machine frame is provided with a discharging track below the end part of the wire rod of the placing hole, which is ejected by the ejection mechanism, the discharging track extends to the outer side of the machine frame, and the height of the outer side of the machine frame is gradually reduced along with the direction away from the placing hole;

the cutting mechanism include cutting seat, cutting pendulum rod, blank sword mount pad and cutting drive assembly, the blank sword install in the blank sword mount pad, the vertical swing of cutting pendulum rod set up in the cutting seat, its one end is as the drive end with the linkage of cutting drive assembly, another point is as the driving end with the blank sword mount pad linkage, the cutting seat along vertical cutting guide rail that is provided with the supply blank sword mount pad and slides, blank sword mount pad and driving end between be provided with the linkage round pin that passes both, blank sword mount pad along vertical first bar linkage groove that is provided with the supply linkage round pin and slide, the driving end be provided with the second bar linkage groove that supplies the linkage round pin to slide along cutting pendulum rod length direction, the cutting drive assembly include altitude mixture control seat, altitude mixture control piece and altitude mixture control piece expansion assembly, altitude mixture control seat run through and be provided with the hole, altitude mixture control piece drive altitude mixture control piece move and be provided with the regulation hole, altitude mixture control piece be provided with and be provided with the linkage round trip to the first side of adjusting surface and the first end of adjusting surface, the first zone of adjusting surface and the end of adjusting surface setting up and the first zone of adjusting surface and the reset zone, the first zone of adjusting surface and the end zone of adjusting surface and the cutting zone of adjusting surface setting up to the reset.