CN101219440A - Drawing vehicle of cold drawing machine and draw-production technique for metallic tube - Google Patents

Drawing vehicle of cold drawing machine and draw-production technique for metallic tube Download PDF

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Publication number
CN101219440A
CN101219440A CNA2008100188392A CN200810018839A CN101219440A CN 101219440 A CN101219440 A CN 101219440A CN A2008100188392 A CNA2008100188392 A CN A2008100188392A CN 200810018839 A CN200810018839 A CN 200810018839A CN 101219440 A CN101219440 A CN 101219440A
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China
Prior art keywords
base pipe
clamping
core
car
drawbench
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Granted
Application number
CNA2008100188392A
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Chinese (zh)
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CN101219440B (en
Inventor
刘洪�
韩戌焕
谢建春
张庚娣
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Jiangsu Longcheng Hongli Hydraulic Equipment Co Ltd
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Jiangsu Longcheng Hongli Hydraulic Equipment Co Ltd
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Application filed by Jiangsu Longcheng Hongli Hydraulic Equipment Co Ltd filed Critical Jiangsu Longcheng Hongli Hydraulic Equipment Co Ltd
Priority to CN2008100188392A priority Critical patent/CN101219440B/en
Publication of CN101219440A publication Critical patent/CN101219440A/en
Application granted granted Critical
Publication of CN101219440B publication Critical patent/CN101219440B/en
Expired - Fee Related legal-status Critical Current
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Abstract

The invention relates to a drawbench drawing lathe and a drawing technique of metal tubes that use the drawing lathe. The drawbench drawing lathe is provided with a clamped mechanism used for clamping tubestrips. The clamped mechanism comprises a taper jaw driven by a hydraulic cylinder and a jaw pressure head matched with the taper jaw and further comprises a liner core that is driven by the hydraulic cylinder and used for plugging into the tubestrips. The drawing lathe is used in the drawing technique of the metal tubes. The technical steps used in the processing of diameter and thickness reduction to casting tubing are: ejector sleeves are put into molds for preparing heads, clamping after plugging into the cores, drawing and annealing; the technical steps used in hole enlargement of the tubes are: rod puncturing and mold fixing, head preparation with the ejector sleeves, clamping after plugging into the cores and drawing. The invention reduces working procedures of the traditional technical process of diameter and thickness reduction to the casting tubing, thereby being labor, time and tubing saving. As for the hole enlargement of the tubing, the tubes processed by the technique of the invention and equipment thereof has little error in cylindricity and high quality.

Description

Drawbench pulls out the draw technology of car and metal pipe material
Technical field
The present invention relates to the draw technology that a kind of drawbench pulls out car and used this a kind of metal pipe material that pulls out car.
Background technology
Drawbench is in order to the pipe material is carried out a kind of plant equipment that tube reducing subtracts wall or subtracts wall hole enlargement processing.
Existing drawbench carries out tube reducing to the base pipe of having cast and subtracts wall and add man-hour, at first will be to the processing of taking the lead of base pipe, to make the solid termination that to be pulled out the car clamping by drawbench, after the annealing solid-end head part of base pipe is passed mould by the mode of ejector sleeve, utilize the clamping device that pulls out car that termination portion is clamped again, by pulling out the car traction base pipe is extracted via mould then, and then decaptitated, cut away solid termination useless.So cycling reaches the finished size that needs until the base pipe.In the technological process of this processing mode, the base pipe must via repeatedly " take the lead ", the operation of " decaptitating ", both time-consuming also waste pipe material.
Existing drawbench carries out hole enlargement to the base pipe and adds man-hour, earlier the drawbench core bar is penetrated the base pipe, at the core bar head end internal mold is installed again, carries out hole enlargement processing by the mode of pulling internal mold or promotion base pipe then.In the mode of this hole enlargement processing, because the release end of base pipe is a free end, therefore unfettered power restriction causes the deviation from cylindrical form of the finished product that processes bigger.
Summary of the invention
The technical problem to be solved in the present invention is: shortcoming and deficiency in order to overcome prior art the invention discloses the draw technology that a kind of drawbench pulls out car and used this a kind of metal pipe material that pulls out car.
The technical solution used in the present invention is: a kind of drawbench pull out car, has car body, be provided with clamping device in the car body in order to clamping base pipe, clamping device includes by the taper clamp of Driven by Hydraulic Cylinder and the clamp pressure head supporting with it, clamping device also include by Driven by Hydraulic Cylinder in order to fill in the lining core of base pipe.
Can withdraw from the base pipe smoothly in order to finish the backsight core in drawing procedure, also be provided with the retaining plate that withdraws from the base pipe in order to auxiliary lining core in the car body, retaining plate is provided with disconnectable Non-return ring.
For simplified structure, handled easily, described taper clamp is driven by a composite hydraulic cylinder with the lining core.
A kind of draw technology of using the metal pipe material that above-mentioned drawbench pulls out car in this technology, is carried out tube reducing to the base pipe of casting and is subtracted wall and add man-hour, adopts following processing step:
A. ejector sleeve is gone into molded head: the base pipe is advanced in die cavity, make the base pipe walk out one section with as the pull head part from die cavity;
B. fill in the core clamping: the pull head of base pipe is partly filled in core and clamping by the clamping device that pulls out car;
C. draw: under the traction of pulling out car, the base pipe is pulled out from die cavity;
D. annealing: the base pipe is carried out annealing in process;
Repeat above-mentioned steps and reach required finished size until the base pipe;
Following processing step is adopted in the hole enlargement processing of base pipe:
A. bar is adorned mould: at the core bar head end internal mold is installed after the drawbench core bar is passed the base pipe;
B. ejector sleeve system head: the base pipe is advanced to internal mold, make internal mold enter the base pipe and advance a section with as the pull head part;
C. fill in the core clamping: the pull head of base pipe is partly filled in core and clamping by the clamping device that pulls out car;
D. draw: pull out car towards ejector sleeve direction pulling base pipe, the base pipe is pulled away from internal mold;
Repeating above-mentioned steps is drawn expansion to required finished size until the base pipe.
The invention has the beneficial effects as follows: the present invention has saved operation for the conventional process flow that pipe material tube reducing subtracts wall processing, saving of work and time and saving pipe material, and in the cycle operation of drawbench, its effect that plays is remarkable; For the hole enlargement processing of pipe material, the tubing deviation from cylindrical form that is processed by Processes and apparatus of the present invention is little, the product quality height.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the structural representation that drawbench of the present invention pulls out car.
1. taper clamps, 2. clamp pressure heads, 3. lining cores, 4. retaining plates, 41. Non-return rings among the figure
The specific embodiment
A kind of drawbench as shown in Figure 1 pull out car, has car body, be provided with clamping device in the car body in order to clamping base pipe, clamping device includes by the taper clamp 1 of Driven by Hydraulic Cylinder and the clamp pressure head 2 supporting with it, clamping device also include by Driven by Hydraulic Cylinder in order to fill in the lining core 3 of base pipe.
Can withdraw from the base pipe smoothly in order to finish backsight core 3 in drawing procedure, also be provided with the retaining plate 4 that withdraws from the base pipe in order to auxiliary lining core 3 in the car body, retaining plate 4 is provided with disconnectable Non-return ring 41.
For simplified structure, handled easily, taper clamp 1 is driven by a composite hydraulic cylinder with lining core 3.
A kind of draw technology of having used the metal pipe material that above-mentioned drawbench pulls out car in this technology, is carried out tube reducing to the base pipe of casting and is subtracted wall and add man-hour, adopts following processing step:
A. ejector sleeve is gone into molded head: the base pipe is advanced in die cavity, make the base pipe walk out one section with as the pull head part from die cavity;
B. fill in the core clamping: the pull head of base pipe is partly filled in core and clamping by the clamping device that pulls out car;
C. draw: under the traction of pulling out car, the base pipe is pulled out from die cavity;
D. annealing: the base pipe is carried out annealing in process;
Repeat above-mentioned steps and reach required finished size until the base pipe;
Following processing step is adopted in the hole enlargement processing of base pipe:
A. bar is adorned mould: at the core bar head end internal mold is installed after the drawbench core bar is passed the base pipe;
B. ejector sleeve system head: the base pipe is advanced to internal mold, make internal mold enter the base pipe and advance a section with as the pull head part;
C. fill in the core clamping: the pull head of base pipe is partly filled in core and clamping by the clamping device that pulls out car;
D. draw: pull out car towards ejector sleeve direction pulling base pipe, the base pipe is pulled away from internal mold;
Repeating above-mentioned steps is drawn expansion to required finished size until the base pipe.
Pull out car when base tube head end is carried out clamping, its composite hydraulic cylinder drives lining core 3 and fills in base tube head end inside, then composite hydraulic cylinder drives taper clamp 1 to 2 propellings of clamp pressure head, taper clamp 1 produces enough radial pressures thus and clamps base tube head end, the sawtooth of taper clamp 1 is bitten base tube head end outer wall, and under the effect of base pipe liner core 3, base tube head end can not be snapped flat because being subjected to powerful snap-in force, and because the effect of lining core 3 makes clamp more firm to the interlock of base pipe.
After finishing, the clamping operation can carry out drawing to the base pipe.After drawing finishes, pull out the lining core 3 of car and will from the pipe material, extract out, this moment composite hydraulic cylinder with taper clamp 1 post-tensioning, taper clamp 1 and clamp pressure head 2 mutual expansive forces disappear, the radial pressure of 1 pair of pipe material of taper clamp also disappears thereupon, clamp is no longer stung pipe; Simultaneously, lining core 3 bounces back under the driving of composite hydraulic cylinder, and cover pipe material is thereon also advanced with it, wait to manage when expecting to advance to retaining plate 4 positions of pulling out car, stopped by the Non-return ring on the retaining plate 4 41,3 in lining core can continue retraction by Non-return ring 41, so serves as a contrast core 3 and just can withdraw from the pipe material smoothly.
In actual production process, because drawbench need be processed the pipe material that differs in various apertures, size, the lining core 3 that therefore pulls out on the car all is dismountable with Non-return ring 41 on the retaining plate 4, can change different sizes to adapt to different process requirements.
Carrying out tube reducing at the pipe material subtracts in the conventional process flow of wall processing, the pipe material must be via the operation of repeatedly taking the lead, decaptitating, both time-consuming also waste pipe material, the present invention has then saved the operation of " taking the lead " and " decaptitating " for this process, saving of work and time and save the pipe material again, in the cycle operation of drawbench, its effect that plays is remarkable.In the process of pipe material hole enlargement processing, the present invention has adopted the expansion mode of drawing, pipe material is drawn in the process of expansion because pipe material finished product end can be subjected to the effect of contraction of tension, therefore draw and expand the pipe that comes out and expect its deviation from cylindrical form than little, the product quality height with the deviation from cylindrical form that pushes away the pipe material that the expansion mode processes.

Claims (4)

1. a drawbench pulls out car, has car body, be provided with clamping device in the car body in order to clamping base pipe, clamping device includes by the taper clamp (1) of Driven by Hydraulic Cylinder and the clamp pressure head (2) supporting with it, it is characterized in that: clamping device also include by Driven by Hydraulic Cylinder in order to fill in the lining core (3) of base pipe.
2. drawbench according to claim 1 pulls out car, it is characterized in that: also be provided with the retaining plate (4) that withdraws from the base pipe in order to auxiliary lining core (3) in the car body, retaining plate (4) is provided with disconnectable Non-return ring (41).
3. drawbench according to claim 1 pulls out car, it is characterized in that: described taper clamp (1) is driven by a composite hydraulic cylinder with lining core (3).
4. draw technology of using the described drawbench of claim 1 to pull out the metal pipe material of car is characterized in that: in this technology, the base pipe of casting is carried out tube reducing subtract wall and add man-hour, adopt following processing step:
A. ejector sleeve is gone into molded head: the base pipe is advanced in die cavity, make the base pipe walk out one section with as the pull head part from die cavity;
B. fill in the core clamping: the pull head of base pipe is partly filled in core and clamping by the clamping device that pulls out car;
C. draw: under the traction of pulling out car, the base pipe is pulled out from die cavity;
D. annealing: the base pipe is carried out annealing in process;
Repeat above-mentioned steps and reach required finished size until the base pipe;
Following processing step is adopted in the hole enlargement processing of base pipe:
A. bar is adorned mould: at the core bar head end internal mold is installed after the drawbench core bar is passed the base pipe;
B. ejector sleeve system head: the base pipe is advanced to internal mold, make internal mold enter the base pipe and advance a section with as the pull head part;
C. fill in the core clamping: the pull head of base pipe is partly filled in core and clamping by the clamping device that pulls out car;
D. draw: pull out car towards ejector sleeve direction pulling base pipe, the base pipe is pulled away from internal mold;
Repeating above-mentioned steps is drawn expansion to required finished size until the base pipe.
CN2008100188392A 2008-01-28 2008-01-28 Drawing vehicle of cold drawing machine and draw-production technique for metallic tube Expired - Fee Related CN101219440B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2008100188392A CN101219440B (en) 2008-01-28 2008-01-28 Drawing vehicle of cold drawing machine and draw-production technique for metallic tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2008100188392A CN101219440B (en) 2008-01-28 2008-01-28 Drawing vehicle of cold drawing machine and draw-production technique for metallic tube

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CN101219440A true CN101219440A (en) 2008-07-16
CN101219440B CN101219440B (en) 2010-09-08

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101972788A (en) * 2010-08-17 2011-02-16 江苏诚德钢管股份有限公司 Pointing machine for roller spinning hydraulic pushing type cold drawing steel tube
CN101992230A (en) * 2010-11-10 2011-03-30 江苏华程工业制管股份有限公司 Method for manufacturing profiled steel pipe
CN102240696A (en) * 2011-05-18 2011-11-16 金川集团有限公司 Method for preparing copper and copper alloy pipes
CN102284526A (en) * 2011-07-13 2011-12-21 中山市奥美森工业技术有限公司 Processing method of oval pipe
CN102527754A (en) * 2011-12-07 2012-07-04 浙江伦宝金属管业有限公司 Automatic material conveying and identifying device of cold-drawn steel tubes
CN102836891A (en) * 2011-06-21 2012-12-26 高玉树 Technique for drawing and expanding metal tubes by cold drawing
CN103962403A (en) * 2014-05-02 2014-08-06 内蒙古北方重工业集团有限公司 Squeezing-drawing method for wall thickness reduction of heavy caliber tubular product
CN111020132A (en) * 2019-12-25 2020-04-17 常熟市异型钢管有限公司 Preparation method of special-shaped steel
CN113305161A (en) * 2021-05-31 2021-08-27 重庆西重特种铝业有限公司 Conical pipe drawing production process and drawing equipment

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI571330B (en) * 2014-05-20 2017-02-21 A-Pro Tech Co Ltd Rolling pipe drawing machine and rolling pumping pipe manufacturing method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87103588A (en) * 1987-05-14 1988-11-30 徐宏熔 High accuracy solid drawn tube processing easy device
CN200945500Y (en) * 2006-09-15 2007-09-12 江苏龙城洪力液压设备有限公司 Full-automatic hydraulic drawing car
CN201150950Y (en) * 2008-01-28 2008-11-19 江苏龙城洪力液压设备有限公司 Drawing cart of cold drawing machine

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101972788A (en) * 2010-08-17 2011-02-16 江苏诚德钢管股份有限公司 Pointing machine for roller spinning hydraulic pushing type cold drawing steel tube
CN101992230A (en) * 2010-11-10 2011-03-30 江苏华程工业制管股份有限公司 Method for manufacturing profiled steel pipe
CN102240696A (en) * 2011-05-18 2011-11-16 金川集团有限公司 Method for preparing copper and copper alloy pipes
CN102836891A (en) * 2011-06-21 2012-12-26 高玉树 Technique for drawing and expanding metal tubes by cold drawing
CN102284526A (en) * 2011-07-13 2011-12-21 中山市奥美森工业技术有限公司 Processing method of oval pipe
CN102284526B (en) * 2011-07-13 2014-04-30 中山市奥美森工业技术有限公司 Processing method of oval pipe
CN102527754A (en) * 2011-12-07 2012-07-04 浙江伦宝金属管业有限公司 Automatic material conveying and identifying device of cold-drawn steel tubes
CN103962403A (en) * 2014-05-02 2014-08-06 内蒙古北方重工业集团有限公司 Squeezing-drawing method for wall thickness reduction of heavy caliber tubular product
CN111020132A (en) * 2019-12-25 2020-04-17 常熟市异型钢管有限公司 Preparation method of special-shaped steel
CN111020132B (en) * 2019-12-25 2021-08-27 常熟市异型钢管有限公司 Preparation method of special-shaped steel
CN113305161A (en) * 2021-05-31 2021-08-27 重庆西重特种铝业有限公司 Conical pipe drawing production process and drawing equipment

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GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Application publication date: 20080716

Assignee: WUXI DAJIN HIGH-PRECISION COLD-DRAWN STEEL TUBE Co.,Ltd.

Assignor: JIANGSU LONGCHENG HONGLI HYDRAULIC EQUIPMENT Co.,Ltd.

Contract record no.: 2013320010094

Denomination of invention: Drawing vehicle of cold drawing machine and draw-production technique for metallic tube

Granted publication date: 20100908

License type: Exclusive License

Record date: 20130529

LICC Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100908

Termination date: 20220128

CF01 Termination of patent right due to non-payment of annual fee