CN101774276A - Rectangular flaring device for plastic pipe and flaring method thereof - Google Patents
Rectangular flaring device for plastic pipe and flaring method thereof Download PDFInfo
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- CN101774276A CN101774276A CN200910214258A CN200910214258A CN101774276A CN 101774276 A CN101774276 A CN 101774276A CN 200910214258 A CN200910214258 A CN 200910214258A CN 200910214258 A CN200910214258 A CN 200910214258A CN 101774276 A CN101774276 A CN 101774276A
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- mold
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- outer mold
- plastic pipe
- inner mold
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Abstract
The invention provides a rectangular flaring device for a plastic pipe and a flaring method thereof. The device comprises an outer die and an inner die, wherein the outer die is sleeved on the outer surface of the die head of the inner die, a cylindrical gap capable of accommodating a pipe is reserved between the outer die and the inner die, the outer die is provided with a cooling water channel, the inner die is provided with an air blowing channel, and one end of the air blowing channel is provided with an annular air outlet hole. The flaring method comprises: clamping a pipe with the outer die, inserting the inner die into the pipe, making water flow through the cooling water channel for cooling to complete the primary cooling formation of the pipe, filling high-pressure air into the air blowing channel, and blowing out the high-pressure air from the air outlet hole to blowing the pipe, and completing the secondary cooling formation.
Description
Technical field
The invention belongs to the enlarging technical field of plastic pipe, particularly relate to a kind of plastic pipe rectangle enlarging device and flared method thereof.
Background technology
At present, being used for the equipment of enlarging tubing, all is that the enlarging of R shape is more.The moulding process more complicated of rectangle enlarging is difficult to grasp.
Chinese patent application number is that 01224383.3 utility model patent discloses a kind of plastic pipe pipe-expanding machine, is made of heater and moulding draw-gear, and the calandria of heater is followed successively by heating jacket, heating collar, heating liner from outside to inside; The eccentric wheel of haulage gear is connected with connecting rod one end by rotating pin, the connecting rod other end links to each other with sliding sleeve, and sliding sleeve and guide post are slidingly matched, and sliding sleeve is fixed on the gripper shoe, clamping ring is fixed on the gripper shoe, guide post and the supporting base stationary fit that is fixed on the frame.
Existing plastic pipe enlarging technology also comprises the rectangle enlarging, but at present domestic rectangle enlarging cooling effect is undesirable, is the main cause of restriction rectangle moulding.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, provide a kind of simple in structure, the successful plastic pipe rectangle of enlarging enlarging device.
Another object of the present invention is to provide the flared method of this enlarging device.
In order to realize first goal of the invention, the technical scheme of employing is as follows:
A kind of plastic pipe rectangle enlarging device, comprise outer mold, inner mold and back die holder, inner mold is installed on the die holder of back, and can be inserted in the outer mold, and be reserved with between outer mold and the inner mold can ccontaining tubing the tubular gap, described outer mold is provided with the cooling water runner, and described inner mold is provided with insufflation channel, and an end of this insufflation channel is provided with gas hole.
In the technique scheme, be equipped with one on the described inner mold and adjust ring,, be used to adjust the width of tubing rectangular opening by two screw lock on the die holder of back.
Described inner mold outer surface is provided with annular internal mold groove, evenly is provided with 6-8 inflatable mouth that is communicated with insufflation channel on the internal mold groove, when making tube forming, blows at circumferencial direction.
Described outer mold comprise can deciliter two parts up and down, and two parts of outer mold form an annular external mold groove when closing near the port, when inner mold inserted, inflatable mouth was towards this external mold groove.
On the die holder of described back the outer mold fixed screw is installed, is used for the spacing of outer mold, outer mold is closed after, inner mold inserts in the outer mold, outer mold can not separate up and down under this state, unless inner mold retreats, withdraws from outer mold.
Described outer mold posts banded offset plate, after being used for outer mold and closing, clamps tubing, increases the frictional force of outer mold and tubing.
In order to realize second goal of the invention, the technical scheme of employing is as follows:
A kind of flared method of plastic pipe rectangle enlarging device, adopt outer mold that tubing is clamped, inner mold inserts in the outer mold, high pressure gas is opened in tubing moulding for the first time then, and high pressure gas blows out from the inflatable mouth of inner mold, reach the purpose that propels the price of tubing, carry out the moulding second time, and outer mold feeds cooling water always in the whole process, to accelerate the cooling velocity of tubing.
What described outer mold clamped is the good tubing of preheating.
Behind the tubing cooling forming, high pressure gas is closed, and inner mold and back die holder retreat, and outer mold separates up and down, to collect the enlarging tubing of moulding.
Adopt the beneficial effect that the present invention brought to be: when the good tubing of preheating slowly entered the enlarging mould, outer mold clamped tubing, cooling water runner water flowing cooling outer mold, and outer mold is rapidly the tubing cooling forming; Inner mold enters the tubing the inside rapidly; Travel switch sends the position arriving signal, and the air to open beginning enters venthole from the air blowing runner, and high pressure gas begins to propel the price of tubing.Tubing under the cooling of coolant flow channel and high pressure gas, rapidly moulding.When rectangle enlarging moulding finishes, high pressure gas is closed, and inner mold withdraws from, and outer mold separately.Perfectly rectangular opening has been worked it out.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 enters the structural representation of outer mold for tubing;
Fig. 3 enters the structural representation of tubing for inner mold;
Fig. 4 propels the price of the structural representation of process for high pressure gas;
Fig. 5 is back structural representation for enlarging finishes.
The specific embodiment
The present invention is described further below in conjunction with accompanying drawing.
Structure of the present invention and implementation process are shown in accompanying drawing 1 to 5, and structure of the present invention comprises outer mold 2, cooling water runner 3, inner mold 4, gas hole 5, outer mold fixed screw 6, air blowing runner 7.Enlarging process of the present invention is: the tubing 1 that preheating is good slowly enters the enlarging mould, as shown in Figure 2; Outer mold 2 clamps tubing 1, cooling water runner 3 water flowings cooling outer mold 2, and outer mold 2 is rapidly tubing 1 cooling forming; Inner mold 4 enters tubing 1 the inside rapidly, as shown in Figure 3; Travel switch sends the position arriving signal, and air to open beginning enters gas hole 5 from air blowing runner 7, and high pressure gas begins to propel the price of tubing 1, tubing under the cooling of coolant flow channel and high pressure gas, moulding rapidly, as shown in Figure 4; When rectangle enlarging moulding finishes, high pressure gas is closed, and inner mold 4 withdraws from, outer mold 2 separately, the perfect rectangular opening of pipe end has been worked it out.
Claims (9)
1. plastic pipe rectangle enlarging device, it is characterized in that comprising outer mold (2), inner mold (4) and back die holder (93), inner mold (4) is installed on the back die holder (93), and can be inserted in the outer mold (2), and be reserved with between outer mold (2) and the inner mold (4) can ccontaining tubing the tubular gap, described outer mold (2) is provided with cooling water runner (3), and described inner mold (4) is provided with insufflation channel (7), and an end of this insufflation channel (7) is provided with gas hole (5).
2. plastic pipe rectangle enlarging device according to claim 1 is characterized in that being equipped with on the described inner mold (4) one and adjusts ring, by the locking of two screws (92) on the back die holder (93), is used to adjust the width of tubing rectangular opening.
3. plastic pipe rectangle enlarging device according to claim 1 and 2, it is characterized in that described inner mold (4) outer surface is provided with annular internal mold groove, evenly be provided with 6-8 inflatable mouth (5) that is communicated with insufflation channel (7) on the internal mold groove, when making tube forming, blow at circumferencial direction.
4. plastic pipe rectangle enlarging device according to claim 3, it is characterized in that described outer mold (2) comprise can deciliter two parts up and down, and when two parts of outer mold (2) close, form an annular external mold groove (22) near the port, when inner mold (4) inserted, inflatable mouth (5) was towards this external mold groove (22).
5. plastic pipe rectangle enlarging device according to claim 4 is characterized in that on the described back die holder (93) outer mold fixed screw (6) being installed, and is used for the spacing of outer mold (2).
6. plastic pipe rectangle enlarging device according to claim 1 is characterized in that described outer mold (2) posts banded offset plate (23), after being used for outer mold (2) and closing, clamps tubing, increases the frictional force of outer mold (2) and tubing.
7. flared method that adopts the described plastic pipe rectangle of claim 1 enlarging device, it is characterized in that adopting outer mold (2) that tubing (1) is clamped, inner mold (4) inserts in the outer mold (2), high pressure gas is opened in tubing moulding for the first time then, and high pressure gas blows out from the inflatable mouth (5) of inner mold (4), reach the purpose that propels the price of tubing, carry out the moulding second time, and outer mold (2) feeds cooling water always in the whole process, to accelerate the cooling velocity of tubing.
8. flared method according to claim 7, what it is characterized in that described outer mold (2) clamping is the good tubing of preheating (1).
9. according to claim 7 or 8 described flared methods, it is characterized in that the tubing cooling forming after, high pressure gas is closed, inner mold (4) and back die holder (92) retreat, outer mold (2) separates up and down, to collect the enlarging tubing of moulding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910214258A CN101774276A (en) | 2009-12-25 | 2009-12-25 | Rectangular flaring device for plastic pipe and flaring method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910214258A CN101774276A (en) | 2009-12-25 | 2009-12-25 | Rectangular flaring device for plastic pipe and flaring method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101774276A true CN101774276A (en) | 2010-07-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910214258A Pending CN101774276A (en) | 2009-12-25 | 2009-12-25 | Rectangular flaring device for plastic pipe and flaring method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN101774276A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107053646A (en) * | 2017-07-06 | 2017-08-18 | 成都联创精密机械有限公司 | A kind of special tube expansion instrument |
| CN107866968A (en) * | 2017-12-20 | 2018-04-03 | 深圳市捷佳伟创新能源装备股份有限公司 | A kind of application method of PFA pipes expanding device and the PFA pipe expanding devices |
| CN116353042A (en) * | 2023-06-02 | 2023-06-30 | 四川联塑科技实业有限公司 | Flaring die for processing PVC (polyvinyl chloride) pipe by intelligent temperature control and adjustment |
-
2009
- 2009-12-25 CN CN200910214258A patent/CN101774276A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107053646A (en) * | 2017-07-06 | 2017-08-18 | 成都联创精密机械有限公司 | A kind of special tube expansion instrument |
| CN107866968A (en) * | 2017-12-20 | 2018-04-03 | 深圳市捷佳伟创新能源装备股份有限公司 | A kind of application method of PFA pipes expanding device and the PFA pipe expanding devices |
| CN107866968B (en) * | 2017-12-20 | 2024-03-26 | 深圳市捷佳伟创新能源装备股份有限公司 | PFA tube flaring device and use method thereof |
| CN116353042A (en) * | 2023-06-02 | 2023-06-30 | 四川联塑科技实业有限公司 | Flaring die for processing PVC (polyvinyl chloride) pipe by intelligent temperature control and adjustment |
| CN116353042B (en) * | 2023-06-02 | 2023-08-01 | 四川联塑科技实业有限公司 | Flaring die for processing PVC (polyvinyl chloride) pipe by intelligent temperature control and adjustment |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100714 |