CN115156320A

CN115156320A - Full-automatic cold-drawing machine for cold-drawing metal bar and using method thereof

Info

Publication number: CN115156320A
Application number: CN202211081568.1A
Authority: CN
Inventors: 蔡菊平
Original assignee: Nantong Shangxuan Metal Products Co ltd
Current assignee: Nantong Shangxuan Metal Products Co ltd
Priority date: 2022-09-06
Filing date: 2022-09-06
Publication date: 2022-10-11
Anticipated expiration: 2042-09-06
Also published as: CN115156320B

Abstract

The invention relates to the technical field of metal cold drawing, and discloses a full-automatic cold drawing machine for cold drawing of a metal rod and a using method thereof. According to the invention, one end of the bar is extruded and cold drawn through the initial drawing assembly, and one end of the bar is extruded out of the cold drawing die seat, so that the traction mechanism can conveniently pull one end of the bar to provide driving force for subsequent cold drawing of the bar, and the problems of more waste and complicated process caused by the fact that one end of the bar needs to be processed into a cold drawing head and then cold drawing traction is carried out by a traditional cold drawing machine are avoided.

Description

Full-automatic cold-drawing machine for cold-drawing metal bar and using method thereof

Technical Field

The invention relates to the technical field of metal cold drawing, in particular to a full-automatic cold drawing machine for cold drawing metal rods and a using method thereof.

Background

The cold drawing machine is used for drawing ferrous and non-ferrous metal bar material at normal temperature and secondary processing of hot rolled and extruded bar material, and is one main processing apparatus for producing small-caliber, precise, thin-wall and high-mechanical performance bar material. The traditional cold drawing machine comprises a feeding mechanism, a traction mechanism and a die frame, wherein a traction head of a bar passes through the die frame through the feeding mechanism, then the traction head is clamped by the traction mechanism to be drawn, so that the bar passes through a cold drawing die of the die frame to complete the drawing forming of the bar.

When the cold drawing machine is used, one end of a bar needs to be processed to form a traction head so as to be convenient for the traction mechanism to pull the bar, but the traction head needs to be cut and removed in the subsequent bar processing, so that the process is more complicated, and more waste materials are generated; in addition, the conventional cold-drawing machine usually needs to remove the rust on the surface of the bar before cold-drawing, and an additional process needs to be added, so that the processing cost is high.

An effective solution to the problems in the related art has not been proposed yet.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a full-automatic cold drawing machine for cold drawing of a metal rod, which has the advantages of assisting in synchronous feeding and cold drawing rust removal and the like, and solves the problems that one end of a rod needs to be processed into a traction head to facilitate traction of the rod and the cost of additionally arranging working procedures is high in the traditional cold drawing.

(II) technical scheme

In order to solve the technical problems that one end of a bar needs to be processed into a traction head to facilitate traction of the bar and the cost of additionally arranging working procedures is high in the traditional cold drawing, the invention provides the following technical scheme:

a full-automatic cold drawing machine for cold drawing of metal bars comprises a feeding mechanism and a die frame, wherein the die frame is provided with a feeding hole and a discharging hole, a cold drawing die seat is arranged on the discharging hole, an initial drawing assembly and a polishing assembly are arranged in the die frame in a sliding mode along the coaxial direction of the feeding hole and the discharging hole, the feeding mechanism drives bars to sequentially penetrate through the polishing assembly and the initial drawing assembly, the initial drawing assembly locks the bars, the initial drawing assembly is matched with the driving assembly to send one end, penetrating through the initial drawing assembly, of the bars into the cold drawing die seat so as to perform initial cold drawing on the end, and the end penetrates through the cold drawing die seat so as to enable a traction mechanism to perform traction locking;

and the initial drawing assembly unlocks the bar stock after one end of the bar stock passes through the cold drawing die seat, the grinding assembly is attached to the surface of the bar stock, and the grinding assembly rotates around the coaxial line to grind the bar stock.

Preferably, the polishing assembly and the initial drawing assembly are coaxially arranged and are fixedly connected through a connecting ring, the surface of the connecting ring is rotatably connected with a carrier frame, the carrier frame is fixedly mounted on the driving assembly, an outer gear ring is fixedly mounted on the surface of the connecting ring, and the outer gear ring is meshed with a rotating assembly so as to be used for driving the polishing assembly to rotate around the coaxial line through the rotating assembly.

Preferably, the driving assembly comprises slide rails and electric sliding blocks, the slide rails are respectively arranged on two sides of the inner wall of the die frame and are in sliding fit with the electric sliding blocks, and the carrier frame is fixedly mounted on the electric sliding blocks and used for driving the initial drawing assembly to send the bar stock into the cold-drawing die seat.

Preferably, the rotating assembly includes a gear rack, the gear rack is fixedly mounted on the carrier rack, a gear seat is disposed on the gear rack, a gear shaft is rotatably mounted on the gear seat, a driving gear is fixedly mounted on the gear shaft, and the driving gear is meshed with the outer gear ring to drive the outer gear ring to rotate around the coaxial line by driving the driving gear to rotate.

Preferably, the rotating assembly further comprises a stepping motor, the stepping motor is fixedly mounted on one side of the die frame, a rotating shaft of the stepping motor penetrates through the die frame and is fixedly provided with a cross rotating shaft, the cross rotating shaft is fixed and rotatably mounted on the die frame, a cross shaft groove is formed in the gear shaft, and the cross shaft groove is in sliding fit with the cross rotating shaft.

Preferably, the initial drawing assembly comprises a first shell, a first base is rotatably mounted on the inner wall of the first shell, and a first conical fluted disc and a centripetal guide rail are fixedly mounted on two sides of the first base respectively;

the conical fluted disc I is meshed with a driving conical tooth I, the driving conical tooth I is fixedly provided with a driving shaft I, the driving shaft I is connected with a driving motor, and the driving motor is fixedly arranged on one surface of the shell;

the centripetal guide rail is meshed with a plurality of first base plates, one ends of the first base plates are fixedly provided with pressing blocks, and the first base plates and the pressing blocks are driven to gather and diffuse through the rotation of the centripetal guide rail;

the first shell is provided with a first guide groove corresponding to the first substrate.

Preferably, the grinding assembly comprises a second shell, a second base is rotatably mounted on the inner wall of the second shell, and a conical fluted disc II and a centrifugal guide rail are fixedly mounted on two sides of the second base respectively;

the conical fluted disc II is meshed with a driving conical tooth II, a driving shaft II is fixedly installed on the driving conical tooth II, and the driving shaft II is in power connection with the driving shaft I through a transmission tooth and a transmission chain;

the centrifugal guide rail is meshed with a plurality of second base plates, one ends of the second base plates are fixedly provided with friction plates, and the friction plates are driven to be attached to and separated from the bar materials through the rotation of the centrifugal guide rail;

and a second guide groove corresponding to the second substrate is formed in the second shell.

Preferably, a blanking box is arranged on one side of the lower portion of the inner wall of the die frame and used for containing waste residues generated by the friction plate for derusting the bar.

(III) advantageous effects

Compared with the prior art, the invention provides a full-automatic cold-drawing machine for cold-drawing metal bars, which has the following beneficial effects:

1. according to the invention, the initial drawing assembly is used for extruding and cold-drawing one end of the bar and extruding one end of the bar out of the cold-drawing die seat, so that the traction mechanism can conveniently draw one end of the bar to provide driving force for the subsequent cold-drawing of the bar, and the problems of more waste materials and complicated processes caused by the fact that the traditional cold-drawing machine needs to process one end of the bar into a cold-drawing head and then carry out cold-drawing traction are avoided.

2. According to the invention, after the initial drawing assembly unlocks the bar stock, the initial drawing assembly drives the polishing assembly to be attached to the surface of the bar stock when the initial drawing assembly unlocks the bar stock, so that the polishing assembly can rotate around the coaxial line of the feeding port and the discharging port of the die frame to polish the bar stock, and the traction structure is matched to pull the bar stock, so that the polishing assembly polishes the bar stock before the bar stock enters the cold-drawing die seat, the problem that the conventional cold-drawing machine does not have the function of removing rust on the bar stock is solved, the cost is high due to the need of adding an independent rust removing process, and the phenomenon that rust slag on the bar stock enters the cold-drawing die seat to scratch the surface of the bar stock in the drawing process is avoided.

3. According to the invention, the polishing assembly and the initial drawing assembly are fixedly installed together through the connecting ring, so that the polishing assembly and the initial drawing assembly synchronously move along the coaxial direction of the feeding port and the discharging port of the die frame under the action of the driving assembly, thereby keeping the distance between the polishing assembly and the initial drawing assembly, and avoiding the phenomenon that the distance between the polishing assembly and the initial drawing assembly is increased after the initial drawing assembly feeds the bar into the cold-drawing die seat, so that the bar has a large area of non-polished area.

Drawings

FIG. 1 is one of the three-dimensional structures of the present invention;

FIG. 2 is a second perspective view of the present invention;

FIG. 3 is a view showing the construction of the internal parts of the present invention;

FIG. 4 is a block diagram of the initial drawing assembly and grinding assembly of the present invention;

FIG. 5 is an exploded view of one of the initial drawing assembly and grinding assembly assembled configurations of the present invention;

FIG. 6 is an exploded view of the second assembly of the initial drawing assembly and the grinding assembly of the present invention;

FIG. 7 is a block diagram of the rotating assembly of the present invention;

FIG. 8 is a block diagram of the rotating assembly of the present invention;

fig. 9 is a partial block diagram of the rotating assembly of the present invention.

In the figure: 1. a mold frame; 2. cold drawing the die holder; 3. an initial drawing assembly; 301. a first shell; 302. a first base; 303. a conical fluted disc I; 304. a centripetal guide rail; 305. driving a first bevel gear; 306. a first driving shaft; 307. a drive motor; 308. a first substrate; 309. a pressing block; 310. a first guide groove; 4. polishing the assembly; 401. a second shell; 402. a second base; 403. a conical fluted disc II; 404. a centrifugal guide rail; 405. driving a second bevel gear; 406. a second driving shaft; 407. a transmission gear; 408. a second substrate; 409. a friction plate; 410. a drive chain; 411. a second guide groove; 5. a drive assembly; 501. a slide rail; 502. an electric slider; 6. a connecting ring; 7. a carrier frame; 8. an outer ring gear; 9. a rotating assembly; 901. a gear carrier; 902. a gear seat; 903. a gear shaft; 904. a drive tooth; 905. a stepping motor; 906. a cross-shaped rotating shaft; 907. a cross axle slot; 10. and (5) blanking the material box.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As described in the background art, the present application provides a fully automatic cold drawing machine for cold drawing a metal bar, which is provided in the prior art to solve the above technical problems.

Referring to fig. 1-9, a full-automatic cold drawing machine for cold drawing of a metal rod comprises a feeding mechanism and a die frame 1, wherein the die frame 1 is provided with a feeding port and a discharging port, the discharging port is provided with a cold drawing die seat 2, an initial drawing assembly 3 and a grinding assembly 4 are arranged in the die frame 1 in a sliding manner along the coaxial direction of the feeding port and the discharging port, the feeding mechanism drives the rod to sequentially pass through the grinding assembly 4 and the initial drawing assembly 3, the initial drawing assembly 3 locks the rod, the initial drawing assembly 3 is matched with a driving assembly 5 to send one end of the rod, which passes through the initial drawing assembly 3, into the cold drawing die seat 2 so as to perform initial cold drawing on the end, and the end passes through the cold drawing die seat 2 so as to enable a traction mechanism to perform traction locking;

the initial drawing assembly 3 unlocks the bar stock after one end of the bar stock penetrates through the cold drawing die seat 2, the grinding assembly 4 is attached to the surface of the bar stock, and the grinding assembly 4 rotates around the coaxial line to grind the bar stock.

After a bar is fed into the initial drawing assembly 3 through the feeding mechanism, the initial drawing assembly 3 locks the bar, so that the initial drawing assembly 3 and the bar are relatively static, then the driving assembly 5 drives the bar to move towards the cold drawing die seat 2 under the cooperation of the initial drawing assembly 3, so that the bar passes through one end of the initial drawing assembly 3 and gradually enters the cold drawing die seat 2, the initial drawing assembly 3 extrudes the bar into the cold drawing die seat 2, the bar passes through the cold drawing die seat 2, the purpose of performing initial cold drawing on one end of the bar which firstly enters the cold drawing die seat 2 (namely one end which passes through the initial drawing assembly 3) is achieved, after the bar passes through the cold drawing die seat 2 to a certain length, the driving assembly 5 stops moving, the locking of the bar is released through the initial drawing assembly, the purpose of extruding and cold drawing on one end of the bar is achieved, one end of the bar is extruded and the other end of the bar is extruded and extruded out of the cold drawing die seat 2, the traction mechanism is convenient to drag one end of the bar to provide driving force for subsequent cold drawing of the bar, and the problem that the complicated cold drawing process of the bar head caused by the need to be processed into the cold drawing waste material of the traditional cold drawing machine is avoided;

in addition, after the locking to the bar is relieved at the initial subassembly 3 of drawing, the initial subassembly 3 of drawing is when relieving the locking to the bar, drive polishing subassembly 4 and bar surface are laminated mutually, thereby be convenient for polishing subassembly 4 rotates in order to polish the bar around the coaxial line of the material loading mouth of mould frame 1 and discharge gate, and the cooperation is pull the pulling of structure to the bar, it polishes the bar before the bar gets into cold-drawn mould seat 2 to have realized polishing subassembly 4, the function of the rust cleaning of bar is not had to traditional cold drawing machine, need add solitary rust cleaning process and the cost that leads to is high, rust slag on the bar has also been avoided simultaneously gets into in cold-drawn mould seat 2, cause the fish tail to the surface of the bar of drawing in-process.

Wherein, the feeding mechanism feeds the bar stock into the initial drawing component 3, and the meaning is as follows: one end of the bar stock penetrates through the initial drawing assembly by the feeding mechanism, and the distance from the end face of one end of the bar stock to one side face (the side face is the side, close to the cold drawing die seat 2, of the initial drawing assembly) of the initial drawing assembly 3 meets the requirement that one end of the bar stock can be clamped by the traction mechanism after penetrating through the cold drawing die seat 2.

Further, subassembly 3 coaxial center setting is drawn with the beginning to the subassembly of polishing 4 to through go-between 6 fixed connection, go-between 6 surface rotation is connected with carrier frame 7, carrier frame 7 fixed mounting be in on the drive assembly 5, go-between 6 surface fixed mounting has outer ring gear 8, outer ring gear 8 meshing has rotating assembly 9, in order to be used for passing through rotating assembly 9 drive polishing subassembly 4 winds the coaxial line is rotatory.

The grinding component 4 and the initial drawing component 3 are fixedly installed together through the connecting ring 6, so that the grinding component 4 and the initial drawing component 3 synchronously move along the coaxial direction of the feeding port and the discharging port of the die frame 1 under the action of the driving component 5, the distance between the grinding component 4 and the initial drawing component 3 is kept, and the phenomenon that after the initial drawing component 3 sends the bar into the cold-drawing die seat 2, the distance between the grinding component 4 and the initial drawing component 3 is increased, so that the bar has a large area of non-ground area is avoided;

because the grinding component 4 and the initial drawing component 3 form an auxiliary feeding component under the matching action of the connecting ring 6, the initial drawing component 3 is utilized in the auxiliary feeding component to grind the rest part of the bar stock through the grinding component 4 after the bar stock is initially drawn, and grinding and feeding of the bar stock are combined on the basis of avoiding practical cold drawing heads, so that the grinding component and the feeding component work alternately, and the surface grinding effect is realized in the bar stock drawing process.

Further, for the driving assembly 5, the driving assembly 5 includes two slide rails 501 and two electric sliding blocks 502, the slide rails 501 are respectively disposed on two sides of an inner wall of the die holder 1 and are in sliding fit with the electric sliding blocks 502, and the carrier holder 7 is fixedly mounted on the electric sliding blocks 502 for driving the initial drawing assembly 3 to feed the bar into the cold drawing die holder 2;

in addition, an induction device is arranged on the initial drawing assembly 3 and is in electric control connection with a control system of the feeding mechanism, when the induction device induces that one end of the bar passes through, the feeding mechanism starts from the time point when the induction device induces the bar, feeding is stopped after a set threshold value is delayed, and the length of the bar passing through the initial drawing assembly 3 at the moment is enabled to meet the requirement that the bar can be locked and drawn by the drawing mechanism after passing through the cold drawing die seat 2.

Further, for the above rotating assembly 9, the rotating assembly 9 includes a gear rack 901, the gear rack 901 is fixedly mounted on the carrier rack 7, a gear seat 902 is formed on the gear rack 901, a gear shaft 903 is rotatably mounted on the gear seat 902, a driving tooth 904 is fixedly mounted on the gear shaft 903, and the driving tooth 904 is meshed with the outer ring gear 8, so as to drive the outer ring gear 8 to rotate around the coaxial line by driving the driving tooth 904 to rotate;

the rotating assembly 9 further includes a stepping motor 905, the stepping motor 905 is fixedly mounted on one side of the mold frame 1, a rotating shaft of the stepping motor 905 penetrates through the mold frame 1 and is fixedly mounted with a cross rotating shaft 906, the cross rotating shaft 906 is fixedly mounted with the mold frame 1 in a rotating manner, a cross shaft groove 907 is formed in the gear shaft 903, and the cross shaft groove 907 is in sliding fit with the cross rotating shaft 906;

the cross rotating shaft 906 is driven to rotate by the stepping motor 905, the cross rotating shaft 906 is in sliding fit with the cross shaft groove 907 on the gear shaft 903, and the cross rotating shaft 906 and the cross shaft groove 907 are both in a cross shape, the cross rotating shaft 906 drives the gear shaft 903 to rotate by utilizing the fit of the cross rotating shaft 906 and the cross shaft groove 907 while the cross rotating shaft 906 is in sliding fit with the cross shaft groove 907, the driving teeth 904 are driven to rotate by being fixedly arranged on the gear shaft 903, and the driving teeth 904 are driven to rotate by meshing the driving teeth 904 with the outer gear ring 8, so that the outer gear ring 8 is driven to rotate by the rotation of the driving teeth 904, and the outer gear ring 8 is fixedly arranged on the connecting ring 6 and the outer gear ring 8 and the connecting ring 6 are coaxially arranged, so that the connecting ring 6 is driven to rotate by the rotation of the outer gear ring 8;

two ends of the connecting ring 6 are respectively and fixedly arranged on the grinding component 4 and the initial drawing component 3, so that the connecting ring 6, the grinding component 4 and the initial drawing component 3 form a whole, the grinding component 4 and the initial drawing component 3 also rotate around the central axis of the connecting ring 6 when the connecting ring 6 rotates, and the initial drawing component 3 unlocks the bar stock at the moment, so that the initial drawing component 3 is not in contact with the bar stock, and when the connecting ring 6 rotates, the grinding component 4 rotates around the central axis of the bar stock to grind the bar stock;

and along with the traction of the traction mechanism to the bar, the bar is continuously passed through the cold-drawing die seat 2, and the grinding component 4 is matched to rotate around the central axis of the bar, so that the grinding of the bar before drawing is realized.

Further, the initial drawing assembly 3 comprises a first shell 301, a first base 302 is rotatably mounted on the inner wall of the first shell 301, and a first conical fluted disc 303 and a radial guide rail 304 are fixedly mounted on two sides of the first base 302 respectively;

the first conical fluted disc 303 is meshed with a first driving conical tooth 305, the first driving conical tooth 305 is fixedly provided with a first driving shaft 306, the first driving shaft 306 is connected with a driving motor 307, and the driving motor 307 is fixedly arranged on the surface of the first shell 301;

the centripetal guide rail 304 is engaged with a plurality of first base plates 308, one ends of the first base plates 308 are fixedly provided with pressing blocks 309, and the centripetal guide rail 304 rotates to drive the first base plates 308 and the pressing blocks 309 to gather and diffuse;

the first shell 301 is provided with a first guide slot 310 corresponding to the first substrate 308.

Preferably, the grinding assembly 4 comprises a second housing 401, a second base 402 is rotatably mounted on the inner wall of the second housing 401, and a conical toothed disc 403 and a centrifugal guide rail 404 are fixedly mounted on two sides of the second base 402 respectively;

the second conical fluted disc 403 is engaged with a second driving conical tooth 405, the second driving conical tooth 405 is fixedly provided with a second driving shaft 406, and the second driving shaft 406 is in power connection with the first driving shaft 306 through a transmission tooth 407 and a transmission chain 410;

the centrifugal guide rail 404 is meshed with a plurality of second base plates 408, one ends of the second base plates 408 are fixedly provided with friction plates 409, and the friction plates 409 are driven to be attached to and separated from the bars through the rotation of the centrifugal guide rail 404 through the second base plates 408;

the second housing 401 is provided with a second guiding groove 411 corresponding to the second substrate 408.

The principle of the initial drawing assembly 3 is the same as that of the grinding assembly 4, and when the pressing blocks 309 in the initial drawing assembly 3 are gathered together, the friction plates 409 in the grinding assembly 4 are diffused to be away from the bar stock, so that the pressing blocks 309 lock the bar stock, and the bar stock is driven to move under the action of the driving assembly 5 to enter the cold-drawing die seat 2; when the pressing blocks 309 in the initial drawing assembly 3 diffuse mutually, the friction plates 409 in the grinding assembly 4 are close to each other to be close to the bars, so that the friction plates 409 are attached to the surfaces of the bars, and when the grinding assembly 4 is driven by the rotating assembly 9 to rotate, the friction plates 409 on the grinding assembly 4 can grind the bars to remove rust on the surfaces of the bars;

in addition, in an initial state, the pressing block 309 and the friction plate 409 are distributed around a circle with the same diameter, when the pressing block 309 starts to clamp the bar stock, the diameter of the circle around which the pressing block 309 is distributed is gradually reduced, and the diameter of the circle around which the friction plate 409 is distributed is gradually increased until the pressing block 309 finishes clamping the bar stock; after the pressing block 309 unlocks the bar stock, the pressing block 309 and the friction plate 409 are both restored to the initial state, and after the pressing block 309 is restored to the initial state, the diameter of a circle around which the pressing block 309 is distributed is gradually increased from the initial state, and at the moment, the diameter of the circle around which the friction plate 409 is distributed is gradually reduced from the initial state until the friction plate 409 is in contact with the bar stock;

the second driving shaft 406 in the grinding assembly 4 and the first driving shaft 306 in the initial drawing assembly 3 are connected with the transmission chain 410 through the transmission teeth 407, and when the two driving shafts 406 and the first driving shaft 306 are set, the centripetal guide rail 304 and the centrifugal guide rail 404 are both vortex-shaped guide rails, and the spiral directions of the two guide rails are opposite, so that when the two driving shafts 406 and the first driving shaft 306 synchronously rotate in the same direction, the direction in which the centripetal guide rail 304 drives the pressing block 309 to move is opposite to the direction in which the centrifugal guide rail 404 drives the friction plate 409 to move.

The centripetal guide rail 304 drives the pressing block 309 to move in the same manner as the centrifugal guide rail 404 drives the friction plate 409 to move, and here, taking the centripetal guide rail 304 driving the pressing block 309 to move as an example, the movement principles of the grinding assembly 4 and the initial pulling assembly 3 are explained in detail, and the specific contents are as follows:

after the bar passes through the initial drawing assembly 3 to a set distance under the action of the feeding mechanism, a control system arranged on the front surface of the die frame 1 controls a driving motor 307 to move to drive a driving shaft I306 to rotate, and the driving shaft I306 is fixedly provided with a driving bevel gear I305, so that the driving shaft I306 rotates to drive the driving bevel gear I305 to rotate, and in addition, the driving bevel gear I305 is meshed with a bevel gear disk I303, so that when the driving bevel gear I305 rotates, the bevel gear disk I303 rotates, wherein the bevel gear disk I303 is fixedly arranged on one side of the base I302, and a centripetal guide rail 304 is fixedly arranged on the other side of the base I302, so that when the bevel gear disk I303 rotates, the centripetal guide rail 304 rotates around the central axis of the base I302;

because the centripetal guide rail 304 is meshed with the plurality of first base plates 308, when the centripetal guide rail 304 rotates, the first base plates 308 approach or depart from the center of the first base 302, so that the pressing block 309 is driven to gather and diffuse, and the locking and unlocking of the pressing block 309 to the bar stock are realized;

the first substrate 308 is slidably disposed in the first guide groove 310, and the first substrate 308 is limited in position by the first guide groove 310 so as to limit the degree of freedom of the first substrate 308, so that the first substrate 308 is close to or far from the center of the first base 302 by the rotation of the radial guide 304 around the central axis of the first base 302.

Further, for above-mentioned mould frame 1, mould frame 1 inner wall lower part one side is provided with blanking box 10, blanking box 10 is used for connecing greatly the produced waste residue of friction disc 409 to the bar rust cleaning to the back is got rid of to the friction disc is with the rust slag on bar surface, and the rust slag falls in blanking box 10 of the inner wall bottom of mould frame 1, utilizes blanking box 10 to collect the back to the rust slag, takes blanking box 10 out in order to handle rust slag record nature centralized processing.

Example two:

after the initial drawing assembly 3 unlocks the bar stock, the friction plate 409 is in contact with the bar stock, and the cross rotating shaft 906 is in sliding fit with the cross shaft groove 907 on the gear shaft 903, so that the surface of the bar stock can be derusted by the friction plate 409 in the moving process, and the time required by the initial drawing assembly and the translation resetting of the friction plate is saved.

Example three:

the feeding mechanism comprises a feeding frame and an ejection cylinder, when the bar falls onto the feeding frame, the ejection cylinder outputs the bar, and the bar is ejected into the initial drawing assembly and then is reset.

The traction mechanism comprises drawbench supports, guide rails and drawbenches, the guide rails are symmetrically and fixedly installed between the supports, the drawbenches are arranged outside the guide rails in a sliding mode, the drawbenches are connected with the guide rails in a sliding mode through sliding structures, a driving box for providing driving force is arranged at one end of the guide rails, a traction box capable of drawing the drawbenches to slide is arranged at the other end of the guide rails, buffer structures capable of buffering the impact force of the drawbenches are respectively arranged on the surfaces of the guide rails, close to the driving box and the traction box,

when the bar drawing work, the bar is clamped by the drawing trolley, the motor is started to rotate positively, the first rotating shaft is driven to rotate through the transmission of the gear set, the first guide wheel is driven to rotate, the first steel wire rope is wound and released, the bar is fixedly clamped by the drawing trolley through the reversing action of the second guide wheel, the bar slides to the far side along the guide rail, the pulley is in rolling contact with the inner wall of the sliding groove in the sliding process, certain friction force is reduced, the bar is released by the drawing trolley, the motor rotates reversely, the transmission of the gear set and the first rotating shaft is realized, the drawing trolley is dragged through the first steel wire rope and the second steel wire rope, and the drawing trolley resets in a backward sliding mode.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a metal bar cold drawing processing is with full-automatic cold drawing machine, includes feeding mechanism and mould frame (1), there are material loading mouth and discharge gate in mould frame (1), and the discharge gate is provided with cold drawing mould seat (2), its characterized in that: an initial drawing assembly (3) and a grinding assembly (4) are arranged in the die frame (1) in a sliding mode along the coaxial direction of the feeding port and the discharging port, a feeding mechanism drives a bar to sequentially penetrate through the grinding assembly (4) and the initial drawing assembly (3), the bar is locked by the initial drawing assembly (3), the initial drawing assembly (3) is matched with a driving assembly (5) to send one end, penetrating through the initial drawing assembly (3), of the bar into the cold-drawing die seat (2) so as to perform initial cold-drawing on the end, and the end penetrates through the cold-drawing die seat (2) so as to enable a traction mechanism to perform traction locking;

the initial drawing assembly (3) unlocks the bar stock after one end of the bar stock penetrates through the cold drawing die seat (2), the grinding assembly (4) is attached to the surface of the bar stock, and the grinding assembly (4) rotates around the coaxial line to grind the bar stock.

2. The full-automatic cold-drawing machine for cold-drawing a metal bar according to claim 1, characterized in that: polishing subassembly (4) and initial drawing subassembly (3) set up with the axle center to through go-between (6) fixed connection, go-between (6) surface rotation is connected with carrier frame (7), carrier frame (7) fixed mounting be in on drive assembly (5), go-between (6) surface fixed mounting has outer ring gear (8), outer ring gear (8) meshing has rotating assembly (9), in order to be used for passing through rotating assembly (9) drive polishing subassembly (4) wind the coaxial line rotates.

3. The full-automatic cold-drawing machine for cold-drawing a metal rod according to claim 2, characterized in that: drive assembly (5) include slide rail (501) and electronic slider (502), slide rail (501) set up respectively the inner wall both sides of mould frame (1), and with electronic slider (502) sliding fit, carrier frame (7) fixed mounting be in on the electronic slider (502), in order to be used for the drive initial drawing subassembly (3) are sent into bar in the cold drawing mould seat (2).

4. The full-automatic cold-drawing machine for cold-drawing a metal rod according to claim 3, characterized in that: the rotating assembly (9) comprises a gear rack (901), the gear rack (901) is fixedly installed on the carrier rack (7), a gear seat (902) is arranged on the gear rack (901), a gear shaft (903) is rotatably installed on the gear seat (902), a driving tooth (904) is fixedly installed on the gear shaft (903), and the driving tooth (904) is meshed with the outer gear ring (8) so as to be used for driving the driving tooth (904) to rotate to drive the outer gear ring (8) to rotate around the coaxial line.

5. The full-automatic cold-drawing machine for cold-drawing a metal rod according to claim 4, characterized in that: rotating assembly (9) still includes step motor (905), step motor (905) fixed mounting be in one side of mould frame (1), the rotation axis of step motor (905) runs through mould frame (1) fixed mounting has cross pivot (906), cross pivot (906) fixed with mould frame (1) rotate the installation, cross axle groove (907) has been seted up on gear shaft (903), cross axle groove (907) with cross pivot (906) sliding fit.

6. The full-automatic cold-drawing machine for cold-drawing a metal bar according to claim 1, characterized in that: the initial drawing assembly (3) comprises a first shell (301), a first base (302) is rotatably installed on the inner wall of the first shell (301), and a first conical-toothed disc (303) and a centripetal guide rail (304) are fixedly installed on two sides of the first base (302) respectively;

the bevel gear plate I (303) is meshed with a driving bevel gear I (305), the driving bevel gear I (305) is fixedly provided with a driving shaft I (306), the driving shaft I (306) is connected with a driving motor (307), and the driving motor (307) is fixedly arranged on the surface of the shell I (301);

the centripetal guide rail (304) is meshed with a plurality of first base plates (308), one end of each first base plate (308) is fixedly provided with a pressing block (309), and the centripetal guide rail (304) rotates to drive the first base plates (308) and the pressing blocks (309) to gather and diffuse;

the first shell (301) is provided with a first guide groove (310) corresponding to the first substrate (308).

7. The full-automatic cold-drawing machine for cold-drawing a metal bar according to claim 6, characterized in that: the grinding assembly (4) comprises a second shell (401), a second base (402) is rotatably installed on the inner wall of the second shell (401), and a conical fluted disc (403) and a centrifugal guide rail (404) are fixedly installed on two sides of the second base (402) respectively;

the conical fluted disc II (403) is meshed with a driving conical tooth II (405), a driving shaft II (406) is fixedly installed on the driving conical tooth II (405), and the driving shaft II (406) is in power connection with the driving shaft I (306) through a transmission tooth (407) and a transmission chain (410);

the centrifugal guide rail (404) is engaged with a plurality of second base plates (408), one end of each second base plate (408) is fixedly provided with a friction plate (409), and the friction plates (409) are driven to be attached to and separated from the bars through the rotation of the centrifugal guide rail (404);

and a second guide groove (411) corresponding to the second substrate (408) is formed in the second shell (401).

8. The full-automatic cold-drawing machine for cold-drawing a metal bar according to claim 7, characterized in that: a blanking box (10) is arranged on one side of the lower portion of the inner wall of the die frame (1), and the blanking box (10) is used for containing waste residues generated by the friction plate (409) in the bar rust removal process.