CN209477094U - The nozzle sizing die of pipe fitting - Google Patents
The nozzle sizing die of pipe fitting Download PDFInfo
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- CN209477094U CN209477094U CN201822277055.3U CN201822277055U CN209477094U CN 209477094 U CN209477094 U CN 209477094U CN 201822277055 U CN201822277055 U CN 201822277055U CN 209477094 U CN209477094 U CN 209477094U
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- pipe fitting
- external mold
- rod
- pipeline section
- nozzle
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Abstract
The utility model relates to pipe fitting manufacturing fields, the nozzle sizing die of specially a kind of pipe fitting, including tubulose external mold, the nozzle of the preceding pipeline section of tubulose external mold is in the openning shape extended from inside to outside, rod-shaped core model is provided in the lumen of tubulose external mold, the head of rod-shaped core model is lead segment, and the annular type cavity region formed between the preceding pipeline section and the shaft of rod-shaped core model of tubulose external mold is consistent with the design profile size of pipe fitting.The outer profile of shaping club body is consistent with the design Internal periphery of pipe fitting, the Internal periphery shaping to pipe fitting；The Internal periphery of the preceding pipeline section of tubular mold is consistent with the design outer profile of pipe fitting, carries out shaping to the outer profile of pipe fitting, guarantees that the profile of pipe fitting is consistent with design profile, greatly improve the yield rate of pipe fitting.
Description
Technical field
The utility model relates to pipe fitting manufacturing field, the sizing dies of the progress full circle of specially a kind of pair pipe fitting nozzle.
Background technique
Heat exchanger is a kind of device for making heat be transmitted to cold fluid from hot fluid, is commonly used to the household appliances such as air-conditioning
In.In the production process of heat exchanger, need spaced apart two straight tube by U-bend connection, as shown in Figure 1, U-bend
Pipe A is that straight pipe is bent into U-shaped composition, and two straight tubes are inserted in two nozzles of U-bend A respectively and are welded together, and realize two
The connection of straight tube.
U-bend A in process, mainly will appear two kinds of defects, one is, as shown in Fig. 2, the circle of U-bend A
Defect is spent, is on the one hand the defect that the nozzle at A1 turns up, this will cause U-bend nozzle outer diameter to be greater than design value, lead to U-shaped
Bend pipe A can not be inserted into straight tube, on the other hand, be touched flat defect at A2 for nozzle, this will cause U-bend A and straight tube
After welding, U-bend A is low with straight tube bonding strength；The second is as shown in figure 3, infolding, U-bend at the nozzle A3 of U-bend A
After pipe A is connect with straight tube, it not only will appear in pipe medium from the case where leakage between U-bend A and straight tube, but also U-bend A
Nozzle infolding will increase pipeline in flow resistance, directly affect assembly rear heat exchange performance.As long as therefore there is above-mentioned lack
One of fall into, U-bend A is not used to the connection of pipeline, and U-bend A can only scrap, and the defect rate of U-bend A is high, serious shadow
Ring the economic benefit of enterprise.
Utility model content
The purpose of the utility model is to provide one kind can to the shaping of pipe fitting nozzle to the consistent mold of design profile.
To achieve the goals above, the technical solution of use are as follows: a kind of nozzle sizing die of pipe fitting, including tubulose external mold,
The nozzle of the preceding pipeline section of tubulose external mold is in the openning shape extended from inside to outside, is provided with rod-shaped core model in the lumen of tubulose external mold,
The head of rod-shaped core model is lead segment, the annular type cavity region formed between the preceding pipeline section of tubulose external mold and the shaft of rod-shaped core model
It is consistent with the design profile size of pipe fitting.
Compared with prior art, the technical effect of the utility model are as follows: the design of the outer profile and pipe fitting of shaping club body
Internal periphery is consistent, the Internal periphery shaping to pipe fitting；The Internal periphery of the preceding pipeline section of tubular mold is consistent with the design outer profile of pipe fitting, right
The outer profile of pipe fitting carries out shaping, guarantees that the profile of pipe fitting is consistent with design profile, greatly improves the yield rate of pipe fitting.
Detailed description of the invention
Fig. 1 is the perspective view for meeting the pipe fitting of design requirement；
Fig. 2 is a kind of cross-sectional view of defect of pipe fitting；
Fig. 3 is the schematic diagram of pipe fitting another kind defect；
Fig. 4 is the cross-sectional view of tubular mold；
Fig. 5 is the cross-sectional view of the utility model entirety；
Fig. 6 is the enlarged diagram at the preceding pipeline section of tubular mold；
Fig. 7 a, the schematic diagram that 7b, 7c are defective pipe fitting reforming process.
Specific embodiment
A kind of nozzle sizing die of pipe fitting, including tubulose external mold 10, the nozzle of the preceding pipeline section 11 of tubulose external mold 10 are in
Abducent openning shape is provided with rod-shaped core model 20 in the lumen of tubulose external mold 10, and the head of rod-shaped core model 20 is lead segment,
The design wheel of the annular type cavity region B and pipe fitting A that are formed between the preceding pipeline section 11 of tubulose external mold 10 and the shaft of rod-shaped core model 20
Wide size is consistent.
As shown in Figure 7a, the pipe fitting A to shaping is fixed in the utility model, tubulose external mold 10 and rod-shaped core model 20 are to pipe
Part A is mobile, and the lead segment from rod-shaped 20 head of core model and the opening of preceding pipeline section 11 of tubulose external mold 10 import annular type to pipe fitting A respectively
Cavity region B, rod-shaped core model 20 is by the design Internal periphery of the Internal periphery shaping of pipe fitting A to pipe fitting A, i.e., by A2 and A3 in Fig. 2 and Fig. 3
The defect at place is modified；The preceding pipeline section 11 of tubulose external mold 10 by the design outer profile of the outer profile shaping of pipe fitting A to pipe fitting A,
The defect in Fig. 2 at A1 is modified, this mold is extremely consistent with its design profile by the shaping of pipe fitting A nozzle, greatly improves
The yield rate of pipe fitting.
It should be noted that the design profile size of pipe fitting A described in the utility model refers to the overall size of pipe fitting A for symbol
Script design requirement is closed, i.e. defect is not present in the inside and outside profile of pipe fitting A, meets the requirements referring to Fig.1 to be provided by the utility model
Pipe fitting.In addition, provided by the utility model is the defect on round tube, and the pipe fitting that square tube or tube section are abnormity is equally fitted
With.
The preceding pipeline section 11 of tubulose external mold 10 is in other words, preceding by the design outer profile of the outer profile shaping of pipe fitting A to pipe fitting A
The interior caliber of pipeline section 11 is consistent with the design outer tube diameter size of pipe fitting A, and still, when reality manufactures, the interior caliber of preceding pipeline section 11 must
It is so slightly greater than the design outer tube diameter of pipe fitting A, still remains the case where its nozzle slightly turns up after pipe fitting A shaping, along with pipe
After the inside squeezing shaping of flange defect of part A nozzle, the case where flange of pipe fitting A nozzle also has outside rebound, unlike material
Pipe fitting A rebound degree it is different, slightly turning up and scratching the straight tube being attached thereto at pipe fitting A nozzle not only influences installation,
And lead to have the case where copper powder in the pipeline being welded, therefore, referring to shown in Fig. 7 c, the whole tubulose external mold 10 is in variable diameter
Circular tube shaped, tubulose external mold 10 include the preceding pipeline section 11 of major diameter and the rear pipeline section 13 of minor diameter, are between forward and backward pipeline section 11,13
12 transition of circular cone pipeline section connection.For the nozzle of pipe fitting A after circular cone pipeline section 12 again shaping, the nozzle of pipe fitting A is shaped to closing,
Not only facilitate the assembly of pipe fitting A in this way, but also avoids scratching the straight tube being attached thereto when installation and generating and retain copper powder in pipeline
The case where, guarantee the assembling quality of pipeline.
Whole rod-shaped core model 20 is in round bar shape, and the head of rod-shaped core model 20 is in rod-shaped circular cone or spherical crown shape and extend out to tubulose
Outside the nozzle of external mold 10.
The cone angle beta of the circular cone pipeline section 12 is 20 °~45 °.
Due to the case where will appear sizing die and pipe fitting A friction when tubulose external mold 10 and rod-shaped 20 shaping of core model, pipe is caused
The accumulation of copper powder between shape external mold 10 and rod-shaped core model 20 influences the shaping of pipe fitting A, therefore the rear pipeline section of the tubulose external mold 10
Current path 15 is offered on 13, the inlet, outlet of current path 15 is connected to the lumen of gas source, tubulose external mold 10 respectively, warp
Current path 15 is blown into tubulose external mold 10, and the copper powder in tubulose external mold 10 is blown out, and guarantees the shaping quality of pipe fitting A.
The bar core of rod-shaped core model 20 and the tube core same core arrangement and the two of tubulose external mold 10 are each attached on die holder, driving machine
Structure drives bar core wire linear reciprocating motion of the die holder along rod-shaped core model 20.
Have on the tubulose external mold 10 and radially protrudes out and be arranged symmetrically two connecting plates 14.
Claims (7)
1. a kind of nozzle sizing die of pipe fitting, it is characterised in that: including tubulose external mold (10), the preceding pipeline section of tubulose external mold (10)
(11) nozzle is in the openning shape extended from inside to outside, is provided with rod-shaped core model (20) in the lumen of tubulose external mold (10), rod-shaped
The head of core model (20) is lead segment, is formed between the preceding pipeline section (11) of tubulose external mold (10) and the shaft of rod-shaped core model (20)
Annular type cavity region (B) is consistent with the design profile size of pipe fitting (A).
2. the nozzle sizing die of pipe fitting according to claim 1, it is characterised in that: the tubulose external mold (10) is integrally in change
Diameter circular tube shaped, tubulose external mold (10) include the preceding pipeline section (11) of major diameter and the rear pipeline section (13) of minor diameter, forward and backward pipeline section (11,
13) it is connected between for (12) transition of circular cone pipeline section.
3. the nozzle sizing die of pipe fitting according to claim 1, it is characterised in that: rod-shaped core model (20) is integrally in round bar
Shape, the head of rod-shaped core model (20) are in rod-shaped circular cone or spherical crown shape and extend out to outside the nozzle of tubulose external mold (10).
4. the nozzle sizing die of pipe fitting according to claim 2, it is characterised in that: the cone angle beta of the circular cone pipeline section (12)
It is 20 °~45 °.
5. the nozzle sizing die of pipe fitting according to claim 2, it is characterised in that: the rear pipeline section of the tubulose external mold (10)
(13) it is offered on current path (15), the inlet, outlet of current path (15) lumen with gas source, tubulose external mold (10) respectively
Connection.
6. the nozzle sizing die of pipe fitting according to claim 1, it is characterised in that: the bar core and tubulose of rod-shaped core model (20)
The tube core same core of external mold (10) is arranged and the two is each attached on die holder, and driving mechanism drives die holder along the bar of rod-shaped core model (20)
Core wire linear reciprocating motion.
7. the nozzle sizing die of pipe fitting according to claim 1, it is characterised in that: have on the tubulose external mold (10) along it
Radial projection has simultaneously been arranged symmetrically two connecting plates (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822277055.3U CN209477094U (en) | 2018-12-29 | 2018-12-29 | The nozzle sizing die of pipe fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822277055.3U CN209477094U (en) | 2018-12-29 | 2018-12-29 | The nozzle sizing die of pipe fitting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209477094U true CN209477094U (en) | 2019-10-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822277055.3U Active CN209477094U (en) | 2018-12-29 | 2018-12-29 | The nozzle sizing die of pipe fitting |
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| Country | Link |
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| CN (1) | CN209477094U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109530551A (en) * | 2018-12-29 | 2019-03-29 | 安徽省三荣科技有限公司 | The nozzle sizing die of pipe fitting |
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2018
- 2018-12-29 CN CN201822277055.3U patent/CN209477094U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109530551A (en) * | 2018-12-29 | 2019-03-29 | 安徽省三荣科技有限公司 | The nozzle sizing die of pipe fitting |
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