CN110153207B - Bar straight bar continuous drawing device and bar drawing method realized by using same - Google Patents

Bar straight bar continuous drawing device and bar drawing method realized by using same Download PDF

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Publication number
CN110153207B
CN110153207B CN201811473267.7A CN201811473267A CN110153207B CN 110153207 B CN110153207 B CN 110153207B CN 201811473267 A CN201811473267 A CN 201811473267A CN 110153207 B CN110153207 B CN 110153207B
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China
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bar
trolley
clamping device
tail end
end position
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CN110153207A (en
Inventor
王宗仁
蔡向东
曹雨
罗俊群
邵康
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SHANGHAI BEITE TECHNOLOGY CO LTD
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SHANGHAI BEITE TECHNOLOGY CO LTD
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C1/00Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
    • B21C1/16Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes
    • B21C1/20Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes from stock of essentially unlimited length
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C1/00Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
    • B21C1/16Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes
    • B21C1/27Carriages; Drives
    • B21C1/28Carriages; Connections of grippers thereto; Grippers

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Extraction Processes (AREA)
  • Press Drives And Press Lines (AREA)

Abstract

The invention discloses a bar straight bar continuous drawing device and a bar drawing method realized by using the same. According to the invention, the head of the bar is gripped by the first front clamping device/the second front clamping device and the bar is gripped by the first rear clamping device/the second rear clamping device alternately by the staged clamping of the first trolley and the second trolley, so that the fed bar is continuously received, and the continuous and uninterrupted transmission of the bar straight bar from the first trolley to the second trolley is realized, thereby realizing continuous and high-speed drawing.

Description

Bar straight bar continuous drawing device and bar drawing method realized by using same
Technical Field
The invention relates to a bar straight bar continuous drawing device and a bar drawing method realized by using the same
Background
The metal material drawing is an important processing means for material processing, and can realize three purposes of material strengthening, sizing and surface reduction. In the existing drawing technology, metal material drawing mainly comprises two processes, namely a heading process and a drawing process.
The head of the straight bar is manufactured by adopting an off-line manual cold rolling or hot rolling method. Then adopting a chain type drawing machine to pass: drawing, returning empty car, redrawing, returning empty car and redrawing. The drawing production process is realized in such a reciprocating intermittent manner. The method has the problems of more labor, low efficiency and long flow.
From the foregoing description of the prior art, the straight bar not only has a long flow path, but also has a long distance for returning an empty car, resulting in a very low back-and-forth drawing efficiency.
Disclosure of Invention
The invention aims to overcome the defects that in the prior art, the straight bar drawing process is long, and the back-and-forth drawing efficiency is very low due to the fact that the distance of an empty vehicle is long, and provides a bar straight bar continuous drawing device and a bar drawing method realized by the same.
The invention solves the technical problems through the following technical scheme:
a continuous drawing device for straight bars of bars comprises a drawing mechanism, and is characterized in that the drawing mechanism comprises a first trolley and a second trolley which are arranged along the drawing direction of the bars, the first trolley comprises a first front clamping device and a first rear clamping device which alternately run, the second trolley comprises a second front clamping device and a second rear clamping device which alternately run, the first trolley reciprocates between a first initial position and a first tail end position, the second trolley reciprocates between a second initial position and a second tail end position, wherein,
the first trolley and the second trolley move in opposite directions;
the bar is sensed by the first trolley in the initial stroke of the first trolley, the head of the bar is gripped by the first front clamping device in the first initial position, and the bar is moved backwards to the first tail end position to realize the drawing of the bar;
in the subsequent stroke of the first trolley, the first trolley returns to the first initial position, the bar is grabbed by the first rear clamping device and moves backwards to the first tail end position to realize the drawing of the bar;
the bar is sensed by the second trolley in the initial stroke of the second trolley, the head of the bar is gripped by the second front clamping device in the second initial position, and the bar is moved backwards to the second tail end position to realize the drawing of the bar;
and in the subsequent stroke of the second trolley, the first rear clamping device and the second rear clamping device alternately clamp the bar and draw the bar backwards.
In the scheme, the first trolley and the second trolley are used for reciprocating drawing, so that the returning distance of an empty trolley is reduced, and the drawing efficiency is obviously improved.
Meanwhile, the first trolley and the second trolley clamp in stages, the first front clamping device/the second front clamping device clamps the head of the bar, and the first rear clamping device/the second rear clamping device alternately clamps and draws the bar, so that the fed bar is continuously received, and meanwhile, the bar straight bar is continuously and uninterruptedly conveyed from the first trolley to the second trolley, and continuous and high-speed drawing is realized.
Preferably, on the subsequent stroke of the first trolley, the first trolley realizes at least two times of drawing through the first rear clamping device. The distance that the head of the bar extends out of the rear part of the first trolley is increased through multiple drawing, so that sufficient reserved space is provided for alternate clamping of the second trolley.
Preferably, on the subsequent stroke of the second trolley, the second trolley realizes at least two times of drawing through the second rear clamping device. Therefore, the distance that the head of the bar extends out of the rear part of the second trolley is increased through multiple drawing, and discharging is achieved.
Preferably, the first and second pre-clamping devices are clamping jaws. Besides the clamping jaws, the first front clamping device and the second front clamping device can also adopt any other clamping structure capable of clamping the bar.
Preferably, the first and second rear clamping devices are wedge-shaped clamps. Besides the wedge-shaped clamp, the first rear clamping device and the second rear clamping device can also adopt any other clamping structure capable of clamping the bar.
Preferably, the continuous drawing device for the bar straight bars further comprises a head pushing mechanism and a drawing die, wherein the head pushing mechanism pushes the bar to enter the drawing die. The head of the bar can be extruded into the drawing die through the head pushing mechanism, so that the bar is provided for the first trolley behind the drawing die.
Preferably, the continuous drawing device for the straight bars of the bars further comprises a chamfering mechanism, and the chamfering mechanism is used for chamfering the bars and conveying the bars to the pushing head mechanism. The bar can be smoothly extruded into the drawing die through the chamfer.
Preferably, the first trolley and the second trolley are guided by a cam to realize reciprocating motion. The movement alternation of the first trolley and the second trolley can be continuously and accurately controlled through the cam.
Preferably, the end of the drawing mechanism is provided with a sensor for sensing whether the bar stock is drawn out. The problem that the former bar is not drawn out yet, but the latter bar enters drawing can be avoided through the inductor.
The bar drawing method is characterized by being realized by adopting the bar straight bar continuous drawing device, wherein the bar drawing method comprises the following steps:
step S1, moving the first trolley to a first initial position and sensing the position of the bar;
step S2, the first trolley clamps the head of the bar through the first front clamping device and moves to the first tail end position for drawing;
step S3, the first trolley returns to the first initial position;
step S4, the first trolley clamps the bar through the first rear clamping device and moves to the first tail end position for drawing;
step S5, step S3-S4 are cycled for multiple times;
step S6, the second trolley moves to a second initial position and senses the position of the bar;
step S7, the second trolley clamps the head of the bar through a second front clamping device and moves to a second tail end position for drawing;
step S8, the first trolley clamps the bar through the first rear clamping device, moves to the first tail end position for drawing, and the second trolley returns to the second initial position;
step S9, the first trolley returns to the first initial position, the second trolley clamps the bar through the second rear clamping device and moves to the second tail end position for drawing;
step S10, and step S8-S9 are repeated for multiple times.
Preferably, in step S5, steps S3-S4 are cycled at least twice.
Preferably, in step S10, steps S8-S9 are cycled at least twice.
Preferably, the step S1 is preceded by the following steps:
and step S01, pushing the bar into a drawing die through a head pushing mechanism.
Preferably, the step S01 is preceded by the following steps:
and step S00, chamfering the bar and conveying the bar to the pushing head mechanism.
Preferably, the step S10 is followed by the following steps:
step S11, the sensor senses whether the bar is drawn out, if yes, the process returns to step S1.
The positive progress effects of the invention are as follows: according to the invention, the head of the bar is gripped by the first front clamping device/the second front clamping device and the bar is gripped by the first rear clamping device/the second rear clamping device alternately by the staged clamping of the first trolley and the second trolley, so that the fed bar is continuously received, and the continuous and uninterrupted transmission of the bar straight bar from the first trolley to the second trolley is realized, thereby realizing continuous and high-speed drawing.
Drawings
FIG. 1 is a schematic view of the initial stroke of the first carriage at the beginning of the first carriage pull of the preferred embodiment of the present invention.
FIG. 2 is a schematic view of the first carriage at the end of its initial travel in accordance with the preferred embodiment of the present invention.
FIG. 3 is a schematic view of the first cart at the beginning of the pull of the first cart for the subsequent trip of the first cart in accordance with the preferred embodiment of the present invention.
Fig. 4 is a schematic diagram of the first cart at the end of the drawing of the first cart in the subsequent trip of the first cart in accordance with the preferred embodiment of the present invention.
FIG. 5 is a schematic view of the second carriage at the beginning of the second carriage pull for the initial second carriage travel in accordance with the preferred embodiment of the present invention.
FIG. 6 is a schematic view of the second carriage at the end of its pull for the initial travel of the second carriage in accordance with the preferred embodiment of the present invention.
FIG. 7 is a schematic view of the initial stroke of the second carriage at the beginning of the drawing of the first carriage in accordance with the preferred embodiment of the present invention.
FIG. 8 is a schematic view of the second cart at the end of the pull of the first cart for the subsequent trip of the second cart in accordance with the preferred embodiment of the present invention.
FIG. 9 is a schematic view of the second cart at the beginning of its pull for a subsequent stroke in accordance with the preferred embodiment of the present invention.
FIG. 10 is a schematic view of the second cart at the end of its pull for a subsequent stroke in accordance with the preferred embodiment of the present invention.
Fig. 11 is a schematic view of the overall structure of the bar continuous drawing apparatus according to the preferred embodiment of the present invention.
FIG. 12 is a drawing method of a bar according to a preferred embodiment of the present invention.
Detailed Description
The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.
As shown in fig. 1 to 11, the present invention discloses a continuous drawing apparatus for a straight bar 3, comprising a drawing mechanism including a first carriage 10 and a second carriage 20 arranged along a drawing direction of the bar 3, the first carriage 10 including a first front clamping device 11 and a first rear clamping device 12 alternately operated, the second carriage 20 including a second front clamping device 21 and a second rear clamping device 22 alternately operated, the first carriage 10 reciprocating between a first initial position and a first end position, the second carriage 20 reciprocating between a second initial position and a second end position, wherein,
the first trolley 10 and the second trolley 20 move in opposite directions;
in the initial stroke of the first trolley 10, the first trolley 10 induces the bar 3, the head of the bar 3 is gripped by the first front clamping device 11 at the first initial position, and the bar 3 is drawn by moving backwards to the first end position;
in the subsequent stroke of the first trolley 10, the first trolley 10 returns to the first initial position, the bar 3 is grabbed by the first rear clamping device 12, and the bar 3 is moved backwards to the first end position to realize the drawing of the bar 3;
in the initial stroke of the second trolley 20, the second trolley 20 senses the bar 3, the head of the bar 3 is gripped by the second front clamping device 21 at a second initial position, and the bar 3 is pulled by moving backwards to a second end position;
on the subsequent stroke of the second carriage 20, the first rear gripper 12 and the second rear gripper 22 alternately grip the rod 3 and draw it backwards.
As shown in fig. 1-10, which are schematic views of alternate drawing, showing the drawing process.
Fig. 1 shows a schematic view of the first carriage 10 at the beginning of its initial travel. At this time, the first carriage 10 senses the bar 3 at the first initial position and clamps the bar 3 by the first pre-clamp 11. While the second trolley 20 is in the second end position.
Figure 2 shows a schematic view of the first trolley 10 at the end of its pull for the initial travel of the first trolley 10. At this point, the first trolley 10 grips the bar 3 by means of the first front gripping device 11 and is drawn to the first end position. While the second carriage 20 is in the second initial position.
Figure 3 shows a schematic view of the first trolley 10 at the start of the drawing of the subsequent run of the first trolley 10. At this point, the first carriage 10 releases the grip of the bar 3 by the first rear gripping device 12, in the first initial position. While the second trolley 20 is moved to the second end position.
Figure 4 shows a schematic view of the first trolley 10 at the end of its pull for a subsequent stroke of the first trolley 10. At this point, the first trolley 10 grips the bar 3 by means of the first rear gripping device 12 and is drawn to the first end position. While the second carriage 20 is moved to the second initial position.
Fig. 5 is a schematic view showing the second carriage 20 at the start of the drawing of the second carriage 20 for the initial stroke of the second carriage 20 after the plurality of drawing operations. At this time, the second carriage 20 is in the second initial position, gripping the bar 3 by the second pre-gripper 21. While the first trolley 10 has moved to the first end position.
Fig. 6 shows a schematic view of the second carriage 20 at the end of its drawing for the initial stroke of the second carriage 20. At this point, the second trolley 20 grips the bar 3 by means of the second pre-clamping device 21 and is drawn to the second end position. While the first carriage 10 is moved to the first initial position.
Fig. 7 shows a schematic view of the first carriage 10 at the beginning of the drawing of the initial stroke of the second carriage 20. At this point, the second carriage 20 releases the bar 3 by means of the second pre-clamping device 21. At the same time the first rear clamping device 12 of the first trolley 10 clamps the bar the switching of the clamping of the bar 3 is demonstrated in figures 6 and 7.
Figure 8 shows a schematic view of the first trolley 10 at the end of its pull for a subsequent stroke of the second trolley 20. At this point, the first trolley 10 grips the bar 3 by means of the first rear gripping device 12 and is drawn to the first end position. While the second carriage 20 is moved to the second initial position.
Fig. 9 shows a schematic view of the second carriage 20 at the beginning of the drawing of the subsequent stroke of the second carriage 20. At this point, the second carriage 20 grips the rod 3 by means of the second rear gripper 22. At the same time, the first rear clamping device 12 of the first carriage 10 releases the rod 3. The switching of the clamping of the rod 3 is demonstrated in fig. 8 and 9.
Fig. 10 shows a schematic view of the second carriage 20 at the end of its pull for a subsequent stroke of the second carriage 20. At this point, the second carriage 20 grips the rod 3 by means of the second rear gripping device 22 and is drawn into the second end position. While the first carriage 10 is moved to the first initial position.
After a number of subsequent switchings as shown in fig. 8 to 10, the first post-clamping device 12 and the second post-clamping device 22 alternately clamp the rod 3 and continue the drawing backwards.
In the scheme, the first trolley 10 and the second trolley 20 perform reciprocating drawing, so that the return distance of an empty trolley is reduced, and the drawing efficiency is obviously improved.
Meanwhile, through the staged clamping of the first trolley 10 and the second trolley 20, the head of the bar 3 is grasped by the first front clamping device 11/the second front clamping device 21 respectively at the early stage, and the grasping and drawing of the bar 3 are alternately carried out by the first rear clamping device 12/the second rear clamping device 22 at the later stage, so that the fed bar 3 is continuously received, and meanwhile, the continuous and uninterrupted transmission of the straight bar 3 from the first trolley 10 to the second trolley 20 is realized, thereby realizing the continuous and high-speed drawing.
In this embodiment, the first carriage 10 performs at least two pulls on the subsequent stroke of the first carriage 10 by the first rear clamping device 12. This increases the distance by which the head of the rod 3 protrudes behind the first carriage 10 by multiple drawing, thus providing sufficient room for alternate clamping of the second carriage 20.
In this embodiment, the second carriage 20 performs at least two pulls by the second rear clamping device 22 on the subsequent stroke of the second carriage 20. The distance that the head of the rod 3 protrudes behind the second carriage 20 is thus increased by multiple drawing, thus achieving the discharge.
In the present embodiment, the first frontal clamping device 11 and the second frontal clamping device 21 are clamping jaws. In addition to the clamping jaws, the first pre-clamping device 11 and the second pre-clamping device 21 may also adopt any other clamping structure capable of clamping the bar 3.
In this embodiment, the first rear clamping device 12 and the second rear clamping device 22 are wedge-shaped clamps. Instead of the wedge-shaped clamps, the first post-clamping device 12 and the second post-clamping device 22 may be any other clamping structure that can clamp the bar 3.
As shown in fig. 11, the bar 3 straight continuous drawing device further includes a head pushing mechanism 5 and a drawing die 4, and the head pushing mechanism 5 pushes the bar 3 into the drawing die 4. The head of the rod 3 can be pushed into the drawing die by the head pushing mechanism 5, so that the first trolley 10 behind the drawing die 4 is provided with the rod 3 for drawing.
In this embodiment, the continuous drawing device of the 3 straight bars of the bar may further include a chamfering mechanism, and the chamfering mechanism chamfers the bar 3 and conveys the bar to the pusher mechanism 5. The bar 3 can be smoothly extruded into the drawing die 4 by the chamfering.
In this embodiment, the first carriage 10 and the second carriage 20 may also be guided by a cam to reciprocate. The alternation of the movement of the first trolley 10 and the second trolley 20 can be controlled continuously and precisely by means of cams. The sequence of actions may of course also be controlled by conventional control means.
In this embodiment, the end of the drawing mechanism may be provided with an inductor for inducing whether the bar is drawn out. The problem that the former bar 3 is not drawn out yet but the latter bar 3 enters drawing can be avoided by the inductor.
As shown in fig. 12, the present embodiment further discloses a bar drawing method, which is implemented by using the bar straight continuous drawing apparatus, wherein the bar drawing method includes:
step S1, moving the first trolley to a first initial position and sensing the position of the bar;
step S2, the first trolley clamps the head of the bar through the first front clamping device and moves to the first tail end position for drawing;
step S3, the first trolley returns to the first initial position;
step S4, the first trolley clamps the bar through the first rear clamping device and moves to the first tail end position for drawing;
step S5, step S3-S4 are cycled for multiple times;
step S6, the second trolley moves to a second initial position and senses the position of the bar;
step S7, the second trolley clamps the head of the bar through a second front clamping device and moves to a second tail end position for drawing;
step S8, the first trolley clamps the bar through the first rear clamping device, moves to the first tail end position for drawing, and the second trolley returns to the second initial position;
step S9, the first trolley returns to the first initial position, the second trolley clamps the bar through the second rear clamping device and moves to the second tail end position for drawing;
step S10, and step S8-S9 are repeated for multiple times.
In this embodiment, in step S5, steps S3-S4 are repeated at least twice.
In this embodiment, in step S10, steps S8-S9 are repeated at least twice.
In this embodiment, before the step S1, the method further includes the following steps:
and step S01, pushing the bar into a drawing die through a head pushing mechanism.
In this embodiment, before the step S01, the method further includes the following steps:
and step S00, chamfering the bar and conveying the bar to the pushing head mechanism.
In this embodiment, after the step S10, the method further includes the following steps:
step S11, the sensor senses whether the bar is drawn out, if yes, the process returns to step S1.
The positive progress effects of the invention are as follows: according to the invention, the head of the bar is gripped by the first front clamping device/the second front clamping device and the bar is gripped by the first rear clamping device/the second rear clamping device alternately by the staged clamping of the first trolley and the second trolley, so that the fed bar is continuously received, and the continuous and uninterrupted transmission of the bar straight bar from the first trolley to the second trolley is realized, thereby realizing continuous and high-speed drawing.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.

Claims (15)

1. A continuous drawing device for straight bars of bars comprises a drawing mechanism, and is characterized in that the drawing mechanism comprises a first trolley and a second trolley which are arranged along the drawing direction of the bars, the first trolley comprises a first front clamping device and a first rear clamping device which alternately run, the second trolley comprises a second front clamping device and a second rear clamping device which alternately run, the first trolley reciprocates between a first initial position and a first tail end position, the second trolley reciprocates between a second initial position and a second tail end position, wherein,
the first trolley and the second trolley move in opposite directions;
the bar is sensed by the first trolley in the initial stroke of the first trolley, the head of the bar is gripped by the first front clamping device in the first initial position, and the bar is moved backwards to the first tail end position to realize the drawing of the bar;
in the subsequent stroke of the first trolley, the first trolley returns to the first initial position, the bar is grabbed by the first rear clamping device and moves backwards to the first tail end position to realize the drawing of the bar;
the bar is sensed by the second trolley in the initial stroke of the second trolley, the head of the bar is gripped by the second front clamping device in the second initial position, and the bar is moved backwards to the second tail end position to realize the drawing of the bar;
and in the subsequent stroke of the second trolley, the first rear clamping device and the second rear clamping device alternately clamp the bar and draw the bar backwards.
2. The continuous drawing device of the straight bar according to claim 1, characterized in that on the subsequent stroke of the first trolley, said first trolley performs at least two draws by means of said first post-clamping device.
3. The continuous drawing device of the straight bar according to claim 1, characterized in that on the subsequent stroke of the second trolley, said second trolley performs at least two draws by means of said second post-clamping device.
4. The continuous drawing device of the straight bar according to claim 1, characterized in that said first and second pre-clamping devices are clamping jaws.
5. The continuous drawing device of the straight bar of claim 1, wherein the first post-clamping device and the second post-clamping device are wedge-shaped clamps.
6. The continuous drawing device of the bar according to claim 1, further comprising a head pushing mechanism and a drawing die, wherein the head pushing mechanism pushes the bar into the drawing die.
7. The continuous drawing device of the bar according to claim 6, characterized in that it further comprises a chamfering mechanism which chamfers and feeds the bar to the pusher mechanism.
8. The continuous drawing device of the straight bar according to any one of claims 1 to 7, characterized in that said first trolley and said second trolley are reciprocally moved by cam guidance.
9. The continuous drawing device of the straight bar according to any one of claims 1 to 7, characterized in that the end of the drawing means is provided with a sensor for sensing the extraction of the bar.
10. A bar drawing method, characterized in that it is carried out using the bar straight continuous drawing apparatus of any one of claims 1 to 9, wherein the bar drawing method comprises:
step S1, moving the first trolley to a first initial position and sensing the position of the bar;
step S2, the first trolley clamps the head of the bar through the first front clamping device and moves to the first tail end position for drawing;
step S3, the first trolley returns to the first initial position;
step S4, the first trolley clamps the bar through the first rear clamping device and moves to the first tail end position for drawing;
step S5, step S3-S4 are cycled for multiple times;
step S6, the second trolley moves to a second initial position and senses the position of the bar;
step S7, the second trolley clamps the head of the bar through a second front clamping device and moves to a second tail end position for drawing;
step S8, the first trolley clamps the bar through the first rear clamping device, moves to the first tail end position for drawing, and the second trolley returns to the second initial position;
step S9, the first trolley returns to the first initial position, the second trolley clamps the bar through the second rear clamping device and moves to the second tail end position for drawing;
step S10, and step S8-S9 are repeated for multiple times.
11. The bar drawing method according to claim 10, wherein in the step S5, the steps S3-S4 are repeated at least twice.
12. The bar drawing method according to claim 10, wherein in the step S10, the steps S8-S9 are repeated at least twice.
13. The bar drawing method according to claim 10, characterized in that before said step S1, it further comprises the steps of:
and step S01, pushing the bar into a drawing die through a head pushing mechanism.
14. The bar drawing method according to claim 13, characterized in that before said step S01, it further comprises the steps of:
and step S00, chamfering the bar and conveying the bar to the pushing head mechanism.
15. The bar drawing method according to claim 10, further comprising, after the step S10, the steps of:
step S11, the sensor senses whether the bar is drawn out, if yes, the process returns to step S1.
CN201811473267.7A 2018-12-04 2018-12-04 Bar straight bar continuous drawing device and bar drawing method realized by using same Active CN110153207B (en)

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CN110153207B true CN110153207B (en) 2021-04-23

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Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19544383C1 (en) * 1995-11-15 1997-04-10 Mannesmann Ag Method and device for pulling straight and threading long drawn goods in several steps
CN203330159U (en) * 2013-06-09 2013-12-11 王华琳 Double-trolley chain type continuous drawing machine
CN203470530U (en) * 2013-09-17 2014-03-12 西安麦特沃金液控技术有限公司 Continuous drawing production line for strip products
CN203470514U (en) * 2013-09-17 2014-03-12 西安麦特沃金液控技术有限公司 Continuous hydraulic drawing machine

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