CN101804423A - Automatic coil wall-thickness reduction and drawing device and drawing method of small-diameter capillary tube - Google Patents
Automatic coil wall-thickness reduction and drawing device and drawing method of small-diameter capillary tube Download PDFInfo
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- CN101804423A CN101804423A CN 201010120020 CN201010120020A CN101804423A CN 101804423 A CN101804423 A CN 101804423A CN 201010120020 CN201010120020 CN 201010120020 CN 201010120020 A CN201010120020 A CN 201010120020A CN 101804423 A CN101804423 A CN 101804423A
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Abstract
The invention relates to an automatic coil wall-thickness reduction drawing device and drawing method of a small-diameter capillary tube. The drawing device comprises a feeding tray, an electric motor and a gear box controlled by the electric motor, wherein the power take-off shaft of the gear box is fixed connected with a drawing mechanism; the drawing device also comprises a mould box, wherein moulds are arranged in the mould box, a raw material tube inlet and a finished tube outlet are separately processed on the opposite side walls of the mould box, a start-stop sensor is arranged at the finished tube outlet, and the start-stop sensor is connected with a control system. The drawing method of the invention adopts oil bath type lubrication, the auxiliary materials can be recycled, the small-diameter capillary tube meeting the drawing quality requirements of the straight pipe can be drawn, the quality controllability is high, the machining condition is not needed to monitor frequently, the work efficiency is greatly increased, the input-output ratio are improved, and the consumption of auxiliary materials is reduced.
Description
Technical field
The invention belongs to metal cold drawing processing technique field, relate to and a kind ofly be used to process external diameter less than 8 millimeters devices capillaceous, be specifically related to a kind of minor diameter pipe automatic coil capillaceous and subtract the wall stretching device, the invention still further relates to a kind of this stretching device stretching minor diameter method capillaceous of utilizing.
Background technology
At present, adopt straight tube to subtract wall and stretch the method for pipe and process external diameter less than 8 millimeters minor diameter capillary on the normal straight tube stretching-machine, this method has following advantage: 1) quality controllability is strong, subtracts the wall dimensionally stable, the wall thickness value high conformity; 2) single adds control measurement at any time in man-hour, can in time prevent because of die wear cause batch bad.But also there is following shortcoming simultaneously in this method: 1) straight tube is stretched as single pulling method, and the back yields that truncates of decaptitating after single track stretches is about 95%, is example with 5 roads that stretch, and its input and output rate is about 78%, and loss is many, and the input and output rate is low; 2) every processing one arm all need repeat to oil, wear the process of mould and stretching, inefficiency; 3) need to cause the supplementary product onsumption amount big with manually every arm being cleaned and coating lubricating oil.
Summary of the invention
In order to overcome above-mentioned problems of the prior art, the purpose of this invention is to provide a kind of minor diameter pipe automatic coil capillaceous and subtract the wall stretching device, be used to process external diameter less than 8 millimeters capillary.
Another object of the present invention provides a kind of said apparatus stretching minor diameter method capillaceous of utilizing, and can not only keep the advantage of existing processing method, and can improve input and output rate and production efficiency in process capillaceous.
The technical solution adopted in the present invention is, minor diameter pipe automatic coil capillaceous subtracts the wall stretching device, comprise discharge plate 3, motor 7 and the gearbox 6 that drives by motor 7, be connected with drawing mechanism on the power output shaft of gearbox 6, this stretching device also comprises die box 2, be provided with mould 8 in the die box 2, die box 2 is processed with mother tube import and production tube outlet respectively on the relative two side, the production tube outlet has been equipped with stop sensor, this plays stop sensor and is connected with control system, and drawing mechanism is a drawing godet 1.
Described mould 8 comprises stretching external mold 9, be processed with groove on the stretching external mold 9, this groove is by from inside outwards the round platform hole 12 of coaxial setting and cylindrical hole 11 constitute successively, the larger diameter end in round platform hole 12 is connected with cylindrical hole 11, minor diameter end face from round platform hole 12 is processed with first through hole 13, first through hole 13 runs through stretching external mold 9 along the axis in round platform hole 12, mould 8 also comprises stretching core 10, stretching core 10 is made of cylinder and Rotary-table, and the tapering of this Rotary-table side surface is identical with the tapering in round platform hole 12.
Another technical scheme of the present invention is, a kind of above-mentioned stretching device stretching minor diameter method capillaceous of utilizing is carried out according to the following steps:
Step 1: adopt minor diameter capillary stretching device, this device comprises motor 7 and the gearbox 6 and the discharge plate 3 that are driven by motor 7, be connected with drawing mechanism on the power output shaft of gearbox 6, this stretching device also comprises die box 2, be provided with mould 8 in the die box 2, die box 2 is processed with mother tube import and production tube outlet respectively on the relative two side, the production tube outlet has been equipped with stop sensor, this plays stop sensor and is connected with control system, drawing mechanism is a drawing godet 1, mould 8 comprises stretching external mold 9, be processed with groove on the stretching external mold 9, this groove by from inside outwards successively the round platform hole 12 of coaxial setting and cylindrical hole 11 constitute, the larger diameter end in round platform hole 12 is connected with cylindrical hole 11, the minor diameter end face from round platform hole 12 is processed with first through hole 13, first through hole 13 runs through stretching external mold 9 along the axis in round platform hole 12, mould 8 also comprises stretching core 10, and stretching core 10 is made of cylinder and Rotary-table, and the tapering of this Rotary-table side surface is identical with the tapering in round platform hole 12;
To put in order dish mother tube 4 places on the discharge plate 3, get the stretching core 10 of external diameter than mother tube 4 internal diameter sizes little 10%～20%, make the tube head of the cylindrical end of this stretching core 10 towards mother tube 4, stretching core 10 is put into the endoporus of mother tube 4 from the tube head of mother tube 4, and stretching core 10 is goed deep into 60cm～80cm in the mother tube 4;
Step 2: get first through-hole diameter, 13 satisfactory stretching external molds 9, to the raw material pipeline section reducing that stretches between the core 10, make external diameter after this raw material pipeline section reducing mother tube 4 tube heads less than the diameter of first through hole 13;
Step 3: 4 tube heads of the mother tube after the reducing are sent in the die box 2 from the mother tube import, passed the groove and first through hole 13 of stretching external mold 9 successively, stretch out outside the die box 2 from the production tube outlet of die box 2 sidewalls;
Step 4: mother tube 4 tube heads after the reducing that will stretch out from die box 2 are fixed in the bayonet socket on the drawing godet 1, then, lubricating oil is added in the die box 2, starter motor 7, motor 7 drives the gear running in the gearbox 6, this gear drives drawing godet 1 and rotates, drawing godet 1 rotates by mother tube 4 pulling discharge plates 3, rotation along with drawing godet 1, the stretching core of placing in the mother tube 4 10 moves in the groove of stretching external mold 9 with mother tube 4, drawing godet 1 continues pulling mother tube 4, and mother tube 4 is by behind first through hole 13, and its reduced diameter is to desired outer diameter.
Stretching device of the present invention has following advantage:
1. stretched minor diameter capillary can reach the quality requirement that straight tube stretches, and has stronger quality controllability.
2. adopt material loading by the gross, need not frequently to monitor the processing situation, till raw material processes by the gross, significantly improve work efficiency.
3. in drawing process, a loss is tens centimetres of materials of raw material head by the gross, and remaining raw material can all be processed into the finished product capillary, has significantly promoted the input and output rate.
4. adopt the oil groove formula lubricated, auxiliary material can be recycled, and has significantly reduced consumption of auxiliary materials.
Description of drawings
Fig. 1 is the structural representation of stretching device of the present invention.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the structural representation of mould in the stretching device of the present invention.
Among the figure, 1. drawing godet, 2. die box, 3. discharge plate, 4. mother tube, 5. production tube, 6. gearbox, 7. motor, 8. mould, 9. stretching external mold, 10. stretching core, 11. cylindrical holes, 12. round platform holes, 13. first through holes, 14. second through holes, 15. third through-holes.
The specific embodiment
The present invention is described in detail below in conjunction with the drawings and specific embodiments.
As depicted in figs. 1 and 2, the structure of stretching device of the present invention, comprise motor 7, the power output shaft of motor 7 is connected with the power input shaft of gearbox 6, be connected with drawing godet 1 on the power output shaft of gearbox 6, drawing godet 1 is provided with bayonet socket, and this stretching device also comprises die box 2 and discharge plate 3.Die box 2 is a hollow shell, be provided with mould 8 in the die box 2, the structure of mould 8 as shown in Figure 3, comprise stretching external mold 9, be processed with groove on the stretching external mold 9, this groove by from inside outwards successively the round platform hole 12 of coaxial setting and cylindrical hole 11 constitute, the larger diameter end in round platform hole 12 is connected with cylindrical hole 11, minor diameter end face from round platform hole 12 is processed with first through hole, 13, the first through holes 13 and runs through stretching external mold 9 along the axis in round platform hole 12.Mould 8 also comprises stretching core 10, stretching core 10 is made of cylinder and Rotary-table, the tapering of this Rotary-table side surface is identical with the tapering in round platform hole 12, it is coaxial with through hole 13 to be processed with second through hole 14 and third through-hole 15, the second through holes 14 and third through-hole 15 on the relative two side of mould 2 respectively.Second through hole, 14 places have been equipped with stop sensor, and this sensor is connected with control system.
The external diameter of stretching core 10 is less than the internal diameter of mother tube 4.
The present invention also provides a kind of above-mentioned stretching device processing minor diameter method capillaceous of utilizing, and this method is specifically carried out according to the following steps:
Step 1: will put in order dish mother tube 4 and place on the discharge plate 3, get the stretching core 10 of external diameter than mother tube 4 internal diameter sizes little 10%～20%, make the tube head of the cylindrical end of this stretching core 10 towards mother tube 4, stretching core 10 is put into the endoporus of mother tube 4 from the tube head of mother tube 4, and stretching core 10 is goed deep into 60～80cm in the mother tube 4;
Step 2: get first through-hole diameter, 13 satisfactory stretching external molds 9, mother tube 4 tube heads to the raw material pipeline section that stretches between the core 10 is carried out reducing, make external diameter after this raw material pipeline section reducing less than the diameter of first through hole 13 on the stretching external mold 9;
Step 3: 4 tube heads of the mother tube after the reducing are sent in the die box 2 from third through-hole 15, and the groove of stretched external mold 9 passes first through hole 13, stretches out outside the die box 2 from second through hole 14 of die box 2 sidewalls;
Step 4: mother tube 4 tube heads after the reducing that will stretch out from die box 2 are fixed in the bayonet socket on the drawing godet 1, then, lubricating oil is added in the die box 2, starter motor 7, motor 7 drives the gear running in the gearbox 6, gear in the gearbox 6 drives drawing godet 1 and rotates, drawing godet 1 rotates by mother tube 4 pulling discharge plates 3, rotation along with drawing godet 1, the stretching cores of placing in the mother tube 4 10 move in the groove on the stretching external mold 9 with mother tube 4, drawing godet 1 continues pulling mother tube 4, and mother tube 4 is by behind first through hole 13, and its reduced diameter is to desired outer diameter.During normal the stretching, production tube 5 contacts with the stop sensor that rises that is installed on second through hole, when production tube 5 and this play stop sensor and do not contact, play stop sensor and send signal, and this signal is delivered to control system, after control system was handled this signal, the control stretching device was out of service.
Stretching device of the present invention carries out automated production by playing stop sensor, has reasonably solved the every deficiency that exists during straight tube stretches.The invention drawing process, guaranteeing directly to stretch on the basis of pipe advantage, increase the inventory winding apparatus, in after testing, the same a collection of product that stretches, the inventive method is compared with existing method, and efficient has improved 200%, with 5 roads is that example input and output rate has increased by 15%, and the utilization rate of lubricating oil is only stretched 20% of pipe method for straight tube; The wall thickness dimension uniformity that subtracts after wall stretches is very stable, and the inside and outside footpath size of production tube 5 can in full force and effectly be controlled.
Claims (7)
1. minor diameter pipe automatic coil capillaceous subtracts the wall stretching device, comprise discharge plate (3), motor (7) and the gearbox (6) that drives by motor (7), be connected with drawing mechanism on the power output shaft of gearbox (6), it is characterized in that, this stretching device also comprises die box (2), be provided with mould (8) in the die box (2), be processed with the outlet of mother tube import and production tube on the relative two side of die box (2) respectively, the production tube outlet has been equipped with stop sensor, this plays stop sensor and is connected with control system, and described drawing mechanism is drawing godet (1).
2. according to the described stretching device of claim 1, it is characterized in that, described mould (8) comprises stretching external mold (9), the stretching external mold is processed with groove on (9), this groove is made of the round platform hole (12) and the cylindrical hole (11) of coaxial setting successively from inside outwards, the larger diameter end in round platform hole (12) is connected with cylindrical hole (11), minor diameter end face from round platform hole (12) is processed with first through hole (13), first through hole (13) runs through stretching external mold (9) along the axis of round platform hole (12), mould (8) also comprises stretching core (10), stretching core (10) is made of cylinder and Rotary-table, and the tapering of this Rotary-table side surface is identical with the tapering of round platform hole (12).
3. according to the described stretching device of claim 1, it is characterized in that described mother tube import is third through-hole (15).
4. according to the described stretching device of claim 1, it is characterized in that described production tube outlet is second through hole (14).
5. one kind is utilized the described stretching device stretching of claim 1 minor diameter method capillaceous, it is characterized in that this method is carried out according to the following steps:
Step 1: adopt minor diameter capillary stretching device, this device comprises motor (7) and the gearbox (6) and the discharge plate (3) that are driven by motor (7), be connected with drawing mechanism on the power output shaft of gearbox (6), this stretching device also comprises die box (2), be provided with mould (8) in the die box (2), be processed with the outlet of mother tube import and production tube on the relative two side of die box (2) respectively, the production tube outlet has been equipped with stop sensor, this plays stop sensor and is connected with control system, described drawing mechanism is drawing godet (1), described mould (8) comprises stretching external mold (9), the stretching external mold is processed with groove on (9), this groove is made of the round platform hole (12) and the cylindrical hole (11) of coaxial setting successively from inside outwards, the larger diameter end in round platform hole (12) is connected with cylindrical hole (11), minor diameter end face from round platform hole (12) is processed with first through hole (13), first through hole (13) runs through stretching external mold (9) along the axis of round platform hole (12), mould (8) also comprises stretching core (10), stretching core (10) is made of cylinder and Rotary-table, and the tapering of this Rotary-table side surface is identical with the tapering of round platform hole (12);
To put in order dish mother tube (4) places on the discharge plate (3), get the stretching core (10) of external diameter than mother tube (4) internal diameter size little 10%～20%, make the tube head of the cylindrical end of this stretching core (10) towards mother tube (4), stretching core (10) is put into the endoporus of mother tube (4) from the tube head of mother tube (4), and stretching core (10) is goed deep into 60cm～80cm in the mother tube (4);
Step 2: get the satisfactory stretching external mold of first through-hole diameter (13) (9), to the raw material pipeline section reducing between the core that stretches (10), make external diameter after this raw material pipeline section reducing mother tube (4) tube head less than the diameter of first through hole (13);
Step 3: the mother tube after the reducing (4) tube head is sent in the die box (2) from the mother tube import, passed the groove and first through hole (13) of stretching external mold (9) successively, stretch out outside the die box (2) from the production tube outlet of die box (2) sidewall;
Step 4: mother tube (4) tube head after the reducing that will stretch out from die box (2) is fixed in the bayonet socket on the drawing godet (1), then, lubricating oil is added in the die box (2), starter motor (7), motor (7) drives the gear running in the gearbox (6), this gear drives drawing godet (1) and rotates, drawing godet (1) rotates by mother tube (4) pulling discharge plate (3), rotation along with drawing godet (1), the stretching core of placing in the mother tube (4) (10) moves in the groove of stretching external mold (9) with mother tube (4), drawing godet (1) continues pulling mother tube (4), mother tube (4) is by behind first through hole (13), and its reduced diameter is to desired outer diameter.
6. according to the described stretching device of claim 5, it is characterized in that described mother tube import is third through-hole (15).
7. according to the described stretching device of claim 5, it is characterized in that described production tube outlet is second through hole (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101200204A CN101804423B (en) | 2010-03-08 | 2010-03-08 | Automatic coil wall-thickness reduction and drawing device and drawing method of small-diameter capillary tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101200204A CN101804423B (en) | 2010-03-08 | 2010-03-08 | Automatic coil wall-thickness reduction and drawing device and drawing method of small-diameter capillary tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101804423A true CN101804423A (en) | 2010-08-18 |
| CN101804423B CN101804423B (en) | 2012-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010101200204A Expired - Fee Related CN101804423B (en) | 2010-03-08 | 2010-03-08 | Automatic coil wall-thickness reduction and drawing device and drawing method of small-diameter capillary tube |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103920731A (en) * | 2014-04-01 | 2014-07-16 | 太仓东青金属制品有限公司 | Precision horizontal type tube drawing machine and full-automatic high-efficiency precise drawing method |
| CN104014601A (en) * | 2014-06-15 | 2014-09-03 | 太仓东青金属制品有限公司 | Precision horizontal type pipe extending machine |
| CN113732583A (en) * | 2021-10-21 | 2021-12-03 | 西安航天动力研究所 | Welding auxiliary assembly and welding method for sensitive element of temperature sensor |
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| CN101147924A (en) * | 2007-10-26 | 2008-03-26 | 马林生 | Method and equipment for processing metal section bar or wire rod |
| CN101422790A (en) * | 2008-12-11 | 2009-05-06 | 王玉凯 | Pressure die-drawing device for producing bimetallic wire |
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2010
- 2010-03-08 CN CN2010101200204A patent/CN101804423B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3238759A (en) * | 1962-11-20 | 1966-03-08 | Bodenseewerk Perkin Elmer Co | Method and means for producing chromatographic capillary columns |
| JPS63242415A (en) * | 1987-03-31 | 1988-10-07 | Nippon Steel Corp | Continuous drawing method for coiled metal tube |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103920731A (en) * | 2014-04-01 | 2014-07-16 | 太仓东青金属制品有限公司 | Precision horizontal type tube drawing machine and full-automatic high-efficiency precise drawing method |
| CN104014601A (en) * | 2014-06-15 | 2014-09-03 | 太仓东青金属制品有限公司 | Precision horizontal type pipe extending machine |
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| CN113732583A (en) * | 2021-10-21 | 2021-12-03 | 西安航天动力研究所 | Welding auxiliary assembly and welding method for sensitive element of temperature sensor |
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| CN101804423B (en) | 2012-02-22 |
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Granted publication date: 20120222 Termination date: 20160308 |