CN203343201U - Extrusion die for solar energy flat pipe - Google Patents
Extrusion die for solar energy flat pipe Download PDFInfo
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- CN203343201U CN203343201U CN 201320371418 CN201320371418U CN203343201U CN 203343201 U CN203343201 U CN 203343201U CN 201320371418 CN201320371418 CN 201320371418 CN 201320371418 U CN201320371418 U CN 201320371418U CN 203343201 U CN203343201 U CN 203343201U
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- flat tube
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Abstract
The utility model provides an extrusion die for a solar energy flat pipe, which belongs to the technical field of extrusion dies for solar energy heat absorbing flat pipes. Two tap holes (201) are symmetrically formed in two sides of a die core through hole (202); a die core (1) is embedded into the die core through hole (201); a die cavity (402) of a lower die (4) comprises a flat pipe body die cavity (4021) and finned edge die cavities (4022) which are communicated with each other; the finned edge die cavities (4022) is arranged at two sides of the flat pipe main body die cavity (4021), the width of each of two ends of the tap hole (201) in at least one side is larger than that of the middle part, in this way, a raw materials is extruded to overflow towards two ends, and the material can be forced to flow into the finned edge die cavities (4022). The flat pipe extruded by using the die comprises a flat pipe body (5) and finned edges (6) at two sides of the flat pipe body (5), and the finned edges (6) and the flat pipe body (5) are integrally formed. The extrusion die provided by the utility model has the advantages of high yield, low production cost, high heat absorbing efficiency and the like.
Description
Technical field
The extrusion die of solar energy flat tube, belong to solar energy heat absorbing flat tube extrusion die technical field, is specifically related to a kind of mould that utilizes the solar energy heat absorbing flat tube on continuous extruder compressive zone wing limit.
Background technology
Along with increasing gradually of current skyscraper, the market share of plate-type solar increases year by year, plate-type solar is by many combs being welded on to a side backlight of absorber plate mostly at present, the inner filling of comb has conductive fluid, comb generally adopts the copper coin pipe, and absorber plate generally adopts aluminium sheet, and this structure has the following disadvantages: because comb is connected by solder joint with absorber plate, heat transfer efficiency is low, causes the thermal efficiency of solar energy to reduce; The copper coin pipe is different from the coefficient of expansion of aluminium sheet, and daytime, heat absorption was expanded, and shrink night, and after long-term the use, the adhesion at solder joint place descends, and causes copper coin pipe and aluminium sheet to disconnect, and heat transfer efficiency further reduces, and service life is short; Copper material exists cost high as precious metal with respect to aluminium, the problem of shortage of resources, and along with the development of present science and technology and process technology, the situation for copper with aluminium all appears in a lot of industries.Have at present by a plurality of aluminium flat conduits and arrange, the flat tube upper and lower side connects respectively the structure that header forms heat-absorbing plate core.
The equipment of extruding flat tube mainly contains two kinds at present, a kind of is horizontal extruder, a kind of is continuous extruder, the flat tube product shaping of horizontal extruder extruding is good, without aligning, but horizontal extruder is expensive, cause the flat tube cost high, the continuous extruder price is low, it is for pushing automotive air-conditioning condenser with the upper die structure of the conventional extrusion dies of aluminium flat conduit as shown in figure 16, for ease of charging, its tap hole outer side edges has the radian of evagination, flat tube is in extrusion process like this, because Chi limit, its both sides is very thin, resistance is large, material meeting automatic stream area is larger, the flat tube body die cavity that resistance is little, being difficult to evenly extruding enters in the die cavity of Chi limit, mould both sides, the flat tube wing limit squeezed out is imperfect, cause very large percent defective, have a strong impact on production efficiency, increased production cost.
Summary of the invention
The technical problems to be solved in the utility model is: overcome the deficiencies in the prior art, provide a kind of for continuous extruder, reduce the extrusion die of the solar energy flat tube of flat tube extruding cost.
The utility model solves the technical scheme that its technical problem adopts: the extrusion die of this solar energy flat tube, comprise core rod, upper die and lower die, the patrix middle part is provided with the core rod through hole, core rod through hole bilateral symmetry is provided with two tap holes, counterdie is provided with seam chamber and die cavity, core rod embeds in the core rod through hole, it is characterized in that: described die cavity comprises flat tube body die cavity and the wing limit die cavity be connected, wing limit die cavity is arranged on the both sides of flat tube body die cavity, the tap hole both ends width of at least one side is greater than the middle part width, makes to push raw material to the both ends overflow.
Described two tap holes, along Central Symmetry, are the structure that the both ends width is greater than the middle part width.
Bottom, described seam chamber is provided with inserts, and the middle part of inserting is provided with the opening identical with the die cavity shape.
Described material of inserting is carbide alloy.
Described tap hole be entrance to outlet, increase gradually horn-like.
Described flat tube body die cavity is rectangle, and wing limit die cavity is horizontally installed on end, the narrow limit of flat tube body die cavity, and flat tube body die cavity and wing limit die cavity upper surface are on same.
The upper surface of described wing limit die cavity and flat tube body die cavity is plane or continuous wavy surface.
Described die core front end section equidistantly is provided with a plurality of mould pins, and rearward end is provided with positioning step.
That described mould pin is shaped as is square, circle or triangle.
Described flat tube body die cavity is semicircle, and wing limit die cavity is horizontally installed on flat tube body die cavity string limit one side, and flat tube body die cavity and wing limit die cavity upper surface are on same.
Compared with prior art, the beneficial effect that the extrusion die of the utility model solar energy flat tube has is:
1, utilize traditional continuous extruder can squeeze out the high-quality flat tube of the solar energy with the wing limit, the horizontal extruder production cost is low relatively, reduced the cost of flat tube, the tap hole that is greater than the middle part width by the both ends width can force in the wing limit die cavity that extruding is larger with material automatic stream resistance, the wing limit that can guarantee the flat tube that squeezes out continuously, stable, yield rate is high;
2, extrusion process is simple, utilizes continuous extruder, by this technique and mould, can be continuously extruded goes out the flat tube with the wing limit, and the wing limit is continuous, qualification rate is high, wing limit and flat tube body upper surface are on same, and the width that flat tube can be aligned is large, are convenient to aligning;
3, be provided with inserting of high rigidity in bottom, the seam chamber of counterdie, insert and can bear the friction of high-temperature material, extend the service life of mould, once the wearing and tearing of simultaneously inserting can change, easy to use;
4, tap hole is horn-like, very narrow bar material can be squeezed out to wider flat tube, meets need of production.
The accompanying drawing explanation
Fig. 1 is the perspective view of the extrusion die of the utility model solar energy flat tube.
Fig. 2 is the front view schematic diagram of patrix.
Fig. 3 is the combination schematic diagram of the extrusion die of the utility model solar energy flat tube.
Fig. 4 is the cutaway view schematic diagram at A-A place in Fig. 3.
Fig. 5 is the counterdie schematic top plan view.
Fig. 6 is the flat tube schematic diagram that utilizes the extrusion die of this solar energy flat tube to squeeze out.
Fig. 7 is the front view schematic diagram of flat tube.
Fig. 8 is the wing limit die cavity counterdie schematic diagram of bending downwards.
Fig. 9 utilizes in Fig. 8 the flat tube schematic diagram that counterdie squeezes out.
Figure 10 is that wing limit die cavity and flat tube body die cavity upside are continuous corrugated schematic diagram.
Figure 11 utilizes in Figure 10 the flat tube schematic diagram that counterdie squeezes out.
Figure 12 is that the flat tube body is semicircular schematic diagram.
Figure 13 is the one-sided schematic diagram that the wing limit is set of flat tube body.
Figure 14 is that two flat tube bodies connect as a whole schematic diagram by the wing limit.
Figure 15 is the schematic diagram that the upper surface on flat tube body and wing limit is the whole cambered surface to the sunlight curving.
Figure 16 is that flat tube body upper surface is the schematic diagram that ，Chi limit, plane is cambered surface.
Figure 17 is the schematic diagram of the extrusion die of existing solar energy flat tube.
Wherein: 1, core rod 101, positioning step 102, mould pin 2, patrix 201, tap hole 202, core rod through hole 203, screwed hole 3, insert 4, counterdie 401, seam chamber 402, die cavity 403, through hole 4021, flat tube body die cavity 4022, wing limit die cavity 5, flat tube body 501, vertically connecting portion 6, wing limit 7, heat exchanging medium passage.
Fig. 1 ~ 7th, the most preferred embodiment of the extrusion die of the utility model solar energy flat tube, be described further below in conjunction with 1 ~ 16 pair of the utility model of accompanying drawing.
The specific embodiment
With reference to accompanying drawing 1: the extrusion die of this solar energy flat tube, comprise core rod 1, patrix 2, insert 3 and counterdie 4, patrix 2 middle part levels are offered core rod through hole 202, the core rod through hole Shang Xia 202 bilateral symmetry offer tap hole 201, core rod 1 interference embeds in core rod through hole 202, and core rod 1 rearward end is provided with positioning step 101, by positioning step 101 and patrix 2 location, guarantee that core rod 1 position is accurate, easy for installation.Core rod 1 leading section equidistantly is provided with a plurality of mould pins 102, and the cross section of mould pin 102 is square.
With reference to Fig. 2: tap hole 201 both ends width are greater than the middle part width, middle part pressure is greater than the pressure at both ends, can force like this extruding raw material to the both ends overflow, and then enter in flat tube body die cavity 4021 Chi limit, both sides die cavitys 4022, evenly, continuously, yield rate is high on the wing limit 6 of the flat tube that assurance squeezes out.
As Fig. 3～5, tap hole 201 for entrance to outlet, increase gradually horn-like, because patrix 2 charging aperture one ends are the cooperation continuous extruder, there is round platform, tap hole 201 is subject to round platform arrowhead less, and the width of required solar energy flat tube is larger, so tap hole 201 is designed to horn-like, narrower bar material can be diffused in the die cavity 402 of wider counterdie 4.
Patrix 2 coordinates with counterdie 4 convex-concaves, patrix 2 discharge ends are provided with boss, offer the circular groove coordinated with boss on counterdie 4, patrix 2 diagonal angles are provided with screwed hole 203, on counterdie 4, correspondence is provided with through hole 403, bolt is fastening with the screwed hole 203 on patrix 2 through through hole 403, is fixedly connected with patrix 2 and counterdie 4.
Counterdie 4 offers seam chamber 401 at bottom portion of groove, the die cavity 402 that runs through counterdie 4 is offered in 401 bottoms, seam chamber, as Fig. 5, die cavity 402 comprises flat tube body die cavity 4021 and the wing limit die cavity 4022 be connected, flat tube body die cavity 4021 is rectangle, wing limit die cavity 4022 is horizontally installed on flat tube body die cavity 4021 ends, narrow limit, and flat tube body die cavity 4021 and wing limit die cavity 4022 upper surfaces are on same.The cross sectional shape of seam chamber 401 matches with the shape of die cavity 402, is convenient to material and flows to die cavity 402.
401 bottoms, seam chamber have high rigidity the carbide alloy material insert 3,3 middle parts of inserting are provided with the opening identical with die cavity 402 shapes.Inserting 3 can be high temperature resistant, wear-resistant, prevent because of the high-temperature material inflow and in the interior mobile process of die cavity 402 wearing and tearing 401 bottoms, seam chamber, the service life of effectively having improved mould, insert 3 replaceable simultaneously, when one insert 3 wearing and tearing after, only need to change to insert and 3 get final product, with respect to 401 bottoms, seam chamber, directly with carbide alloy, process, cost is low, easy to make.
Flat tube production comprises the steps:
1) raw material are heated to 450 ~ 500 ℃, are incubated 3 ~ 4 hours; By mold heated to 450 ~ 500 ℃, be incubated 1 ~ 2 hour;
2) mould is packed into continuous extruder, clamp-on mould by raw material, two tap holes 201 of patrix 2, and tap hole 201 both ends width are greater than the middle part width, force material to two side flow, can enter in flat tube body die cavity 4021 Chi limit, both sides die cavitys 4022.Insert 3 because its hardness is higher, can bear the friction of high-temperature material, due to the mould pin 102 of core rod 1 front end, material forms heat exchanging medium passage 7 when 401 internal shaping of seam chamber, is squeezed into the flat tube biscuit with wing limit 6, and the squeegee roller rotating speed is 10 ~ 15 rev/mins;
3) by the flat tube biscuit through straightener, obtaining flat tube directly expects, due to the upper surface of wing limit 6 and flat tube body 5 in same, make the width that flat tube body 5 can be aligned maximize, be convenient to aligning, cut off by shut-off mechanism after reaching flat tube preliminary dimension, obtain the flat tube semi-finished product, flat tube preliminary dimension is according to plate core selection of dimension 80cm;
4) excision 5mmChi limit, flat tube semi-finished product two ends 6, as Fig. 7, form vertical connecting portion 501 that length is 5mm at the flat tube two ends, and to vertical connecting portion 501 outline roundings, wing limit 6 can make adjacent two vertical connecting portions 501 have spacing, convenient welding, welding hind wing limit 6 and flat tube body 5 form a continuous heat-absorbent surface, and heat absorption efficiency is high.
Fig. 6 is the flat tube of the solar energy with the wing limit that utilizes the extrusion die extruding of above-mentioned solar energy flat tube, comprise flat tube body 5 and flat tube body 5 Chi limits, both sides 6, wing limit 6 is integrally formed with flat tube body 5, be evenly distributed with heat exchanging medium passage 7 in flat tube body 5, the cross section of heat exchanging medium passage 7 is the square identical with mould pin 102.Directly by flat tube body 5 and wing limit 6, absorb solar energy, heat transfer efficiency is high, overcome that absorber plate and heat pipe pad heat transfer efficiency were low in the past, connect unstable shortcoming, the upper surface on flat tube body 5 and wing limit 6 is heat-absorbent surface, is covering the absorption film absorbed solar energy that has one deck continuous on heat-absorbent surface.
In the utility model, wing limit die cavity 4022 can also adopt other structures with flat tube body die cavity 4021, makes the following flat tube of the solar energy with the wing limit of structure:
With reference to Fig. 8～9: wing limit die cavity 4022 is connected to the both sides of flat tube body die cavity 4021, and wing limit die cavity 4022 bends downwards, the corresponding bending downwards in the wing limit 6 of the flat tube squeezed out by this mould, more die change pin 102 cross sections are leg-of-mutton core rod 1, and can squeeze out heat exchanging medium passage 7 cross sections is leg-of-mutton flat tube.
With reference to Figure 10～11: the upside of wing limit die cavity 4022 and flat tube body die cavity 4021 is continuous waveform, the waveform that the wing limit 6 of the flat tube squeezed out by this mould is corresponding and one of flat tube body 5 upper sides formation is continuous, more die change pin 102 cross sections are circular core rod 1, and can squeeze out heat exchanging medium passage 7 cross sections is circular flat tube.
With reference to Figure 12: flat tube body die cavity 4021 can be set to semicircle, wing limit die cavity 4022 is horizontally installed on flat tube body die cavity 4021 string limit one sides, flat tube body die cavity 4021 and wing limit die cavity 4022 upper surfaces are on same, the flat tube body 5 of the solar energy flat tube that utilizes this mould to squeeze out is for corresponding semicircle, and by changing core rod 1, can make heat exchanging medium passage 7 for two-layer, be evenly distributed in flat tube body 5.
With reference to Figure 13: wing limit 6 can only be arranged on left side or the right side of flat tube body 5.
With reference to Figure 14: two flat tube bodies 5 connect as a whole by wing limit 6, two flat tube bodies 5 are integrated extrusion molding with wing limit 6.Can be also that plural flat tube body 5 shares a wing limit 6.
With reference to Figure 15: flat tube body 5 be the cambered surface of integral body to the sunlight curving with the upper surface on wing limit 6, also can be to curving backlight.
With reference to Figure 16: flat tube body 5 cross sections are rectangle, and upper surface is plane, and Chi limit, both sides 6 is the cambered surface to the sunlight curving, also can be to curving backlight.
In the utility model, flat tube preliminary dimension is 80cm, according to the plate core of different size, needs between 80～200cm, to choose, and vertically connecting portion 501 is 5mm, according to flat tube size and weld strength needs, can between 4～7mm, choose; Mould pin 102 can be selected 2～40, and the quantity of establishing heat exchanging medium passage 7 in the flat tube squeezed out is 2～40.
The above, it is only preferred embodiment of the present utility model, be not the utility model to be done to the restriction of other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solutions of the utility model content that do not break away from, any simple modification, equivalent variations and the remodeling above embodiment done according to technical spirit of the present utility model, still belong to the protection domain of technical solutions of the utility model.
Claims (10)
1. the extrusion die of a solar energy flat tube, comprise core rod (1), patrix (2) and counterdie (4), patrix (2) middle part is provided with core rod through hole (202), core rod through hole (202) bilateral symmetry is provided with two tap holes (201), counterdie (4) is provided with seam chamber (401) and die cavity (402), core rod (1) embeds in core rod through hole (202), it is characterized in that: described die cavity (402) comprises flat tube body die cavity (4021) and the wing limit die cavity (4022) be connected, wing limit die cavity (4022) is arranged on the both sides of flat tube body die cavity (4021), the tap hole of at least one side (201) both ends width is greater than the middle part width, make to push raw material to the both ends overflow.
2. the extrusion die of solar energy flat tube according to claim 1 is characterized in that: described two tap holes (201), along Central Symmetry, are the structure that the both ends width is greater than the middle part width.
3. the extrusion die of solar energy flat tube according to claim 1, is characterized in that: be provided with insert (3) bottom described seam chamber (401), be provided with the opening identical with die cavity (402) shape in the middle part of insert (3).
4. the extrusion die of solar energy flat tube according to claim 3, it is characterized in that: the material of described inserting (3) is carbide alloy.
5. the extrusion die of solar energy flat tube according to claim 1 is characterized in that: described tap hole (201) for entrance to outlet, increase gradually horn-like.
6. the extrusion die of solar energy flat tube according to claim 1, it is characterized in that: described flat tube body die cavity (4021) is rectangle, wing limit die cavity (4022) is horizontally installed on end, the narrow limit of flat tube body die cavity (4021), and flat tube body die cavity (4021) and wing limit die cavity (4022) upper surface are on same.
7. the extrusion die of solar energy flat tube according to claim 6 is characterized in that: the upper surface of described wing limit die cavity (4022) and flat tube body die cavity (4021) is plane or continuous wavy surface.
8. the extrusion die of solar energy flat tube according to claim 1, it is characterized in that: described core rod (1) leading section equidistantly is provided with a plurality of mould pins (102), and rearward end is provided with positioning step (101).
9. the extrusion die of solar energy flat tube according to claim 8 is characterized in that: described mould pin (102) is shaped as square, circle or triangle.
10. the extrusion die of solar energy flat tube according to claim 1, it is characterized in that: described flat tube body die cavity (4021) is for semicircle, wing limit die cavity (4022) is horizontally installed on flat tube body die cavity (4021) string limit one side, and flat tube body die cavity (4021) and wing limit die cavity (4022) upper surface are on same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320371418 CN203343201U (en) | 2013-06-26 | 2013-06-26 | Extrusion die for solar energy flat pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320371418 CN203343201U (en) | 2013-06-26 | 2013-06-26 | Extrusion die for solar energy flat pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203343201U true CN203343201U (en) | 2013-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320371418 Expired - Fee Related CN203343201U (en) | 2013-06-26 | 2013-06-26 | Extrusion die for solar energy flat pipe |
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| Country | Link |
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| CN (1) | CN203343201U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108160733A (en) * | 2017-12-25 | 2018-06-15 | 广东和胜工业铝材股份有限公司 | For the molding mold of flat tube and its processing method |
| CN113305167A (en) * | 2021-03-22 | 2021-08-27 | 南京云海特种金属股份有限公司 | Aluminum flat tube extrusion die structure |
-
2013
- 2013-06-26 CN CN 201320371418 patent/CN203343201U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108160733A (en) * | 2017-12-25 | 2018-06-15 | 广东和胜工业铝材股份有限公司 | For the molding mold of flat tube and its processing method |
| CN108160733B (en) * | 2017-12-25 | 2020-06-16 | 广东和胜工业铝材股份有限公司 | Mold for flat tube molding and processing method thereof |
| CN113305167A (en) * | 2021-03-22 | 2021-08-27 | 南京云海特种金属股份有限公司 | Aluminum flat tube extrusion die structure |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131218 Termination date: 20210626 |
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| CF01 | Termination of patent right due to non-payment of annual fee |