CN204307963U - LED lamp tube extrusion die - Google Patents
LED lamp tube extrusion die Download PDFInfo
- Publication number
- CN204307963U CN204307963U CN201420649806.9U CN201420649806U CN204307963U CN 204307963 U CN204307963 U CN 204307963U CN 201420649806 U CN201420649806 U CN 201420649806U CN 204307963 U CN204307963 U CN 204307963U
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- patrix
- led lamp
- lamp tube
- mould core
- extrusion die
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Abstract
The utility model discloses a kind of LED lamp tube extrusion die, comprise front guide, upper die and lower die, patrix comprises the first patrix and the second patrix, and front guide, upper die and lower die superpose successively and are assembled into one, and the first patrix and the second patrix adopt mosaic mode to be assembled into one.Front guide is provided with pod apertures, and the first patrix is provided with multiple first tap hole, and the second patrix is provided with multiple second tap hole, and the first tap hole is corresponding with pod apertures is communicated with; The big mould core of the first patrix passes the second patrix thus the first patrix is inlayed with the second patrix and coordinates, first patrix and the second patrix adopt mosaic mode group, can process respectively the first patrix and the second patrix, Mould Machining difficulty is simplified, and the accuracy of manufacture of mould easily ensures.Adopt multiple first tap hole and multiple second tap hole to shunt metal liquid, thus make the flow velocity of metal more even.Make the feed of metal more rationally with even, the dimensional accuracy of product can effectively ensure.
Description
Technical field
The utility model relates to a kind of mould, particularly a kind of LED lamp tube extrusion die.
Background technology
Due to aluminium alloy material light weight, attractive in appearance, good thermal conductivity be easily processed into the characteristics such as complicated shape product and be used widely, as being applied to the heat sink assembly in industrial products such as producing IT, electronics and automobile, large LED fluorescent tube is common a kind of parts, and Figure 10 is a kind of sectional view of LED lamp tube.
But, when utilizing traditional moulds to carry out LED lamp tube extruding production, the cost of mould is often comparatively large, and main cause is: on the one hand, and the difficulty of processing of mould is large, manufacturing cycle is long, manufacturing cost is high, the sectional view of LED lamp tube as shown in Figure 10, and the structure of this LED lamp tube is more complicated, the cross section of the horizontal core of its extrusion die corresponding is also more complicated, and the difficulty of processing of core rod is large.Another aspect is that the intensity of mould not easily ensures, mould easily ruptures, mainly because the core rod area of section bar is large, in extrusion process, the metal deformation resistance that the extruding dead band of mould produces and metal friction power excessive, when bearing high temperature, high pressure, high frictional resistance, can there is serious distortion in mould, cause mould to occur the fracture of shunting bridge, in order to improve the intensity of mould, do not stint and adopt the steel of import, and imported steel is expensive, so the cost of mould is large.Adopt design and the processing thought of traditional moulds, the process-cycle of patrix is long, and difficulty of processing is large, easily causes the error on Making mold, causes flow velocity during metal forming uneven and make the size of shaping product occur deviation.
Utility model content
Based on this, be necessary for the large problem of existing LED lamp tube extrusion die difficulty of processing, provide a kind of processing simple LED lamp tube extrusion die.
A kind of LED lamp tube extrusion die, comprise upper die and lower die, described LED lamp tube extrusion die also comprises front guide, described front guide, upper die and lower die superpose successively and are assembled into one, described patrix comprises the first patrix near described front guide and the second patrix near described counterdie, described first patrix is provided with big mould core near one end of described second patrix, described second patrix is provided with multiple small mould core near one end of described counterdie, multiple small mould cores of described second patrix surround a through hole, the big mould core of described first patrix passes described through hole thus described first patrix and described second patrix is inlayed and is combined together.
Wherein in an embodiment, described multiple small mould core uniform intervals distribution and around described big mould core.
Wherein in an embodiment, described front guide is provided with multiple pod apertures, described first patrix is provided with multiple first tap hole, described second patrix is provided with multiple second tap hole, a pod apertures of described front guide is corresponding with multiple first tap holes of described first patrix to be communicated with, and the first tap hole of described first patrix is corresponding with described second tap hole of described second patrix to be communicated with.
Wherein in an embodiment, the quantity of described pod apertures is 4, and the quantity of the first tap hole is 16, and the quantity of the second tap hole is 16, and each pod apertures of described front guide is corresponding with 4 the first tap holes of described first patrix to be communicated with.
Wherein in an embodiment, form water conservancy diversion bridge between described pod apertures, entrance and the exit of described water conservancy diversion bridge all adopt chamfer design.
Wherein in an embodiment, the axis of described pod apertures and mould forms 8
0spread angle.
Wherein in an embodiment, form the first shunting bridge between the first tap hole of described first patrix, the width of described first shunting bridge is 12 millimeters; Formed between second tap hole of described second patrix and to shunt bridge location with described first and put corresponding second and shunt bridge, the described second width shunting bridge is 12 millimeters.
Wherein in an embodiment, described counterdie is also provided with to be shunted bridge location with described second and puts corresponding support pier.
Wherein in an embodiment, it is characterized in that, the bonding container that described counterdie is provided with close described patrix and the discharge opening be communicated with described bonding container, described big mould core and described small mould core pass described bonding container and stretch into described discharge opening, described big mould core and described small mould core and described discharge opening coordinate near the part of described bonding container and are formed into nibs, and the cross sectional shape of described forming hole is corresponding with the cross sectional shape of LED lamp tube section bar.
Wherein in an embodiment, the big mould core of described first patrix offers fabrication hole, and described fabrication hole is not communicated with described discharge opening.
Patrix is that the first patrix and the second patrix adopt mosaic mode to assemble, can process respectively the first patrix and the second patrix, the big mould core of the first patrix can be processed by the mode of turning, and the small mould core of the second patrix can by utilize after turnery processing small mould core evenly, the feature of symmetric arrays and being formed by linear cutter.Due to the change of structure, in mold pressing process, do not use copper electrode and spark machined, greatly saved the cost manufactured, substantially reduced the cycle of processing.The simplification of processing, makes the accuracy of manufacture of mould easily ensure, flow velocity when making metal inflow counterdie shaping reaches unanimity, thus formed product size is occurred, and the possibility of deviation diminishes, and forming quality of products has had guarantee.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of the preferred embodiment of the utility model LED lamp tube extrusion die;
Fig. 2 is the top view of front guide in Fig. 1;
Fig. 3 is the profile of front guide in Fig. 1;
Fig. 4 is the top view of the first patrix in Fig. 1;
Fig. 5 is the profile of B-B in Fig. 4;
Fig. 6 is the top view of the second patrix in Fig. 1;
Fig. 7 is the profile of A-A in Fig. 5;
Fig. 8 is the profile of the second patrix in Fig. 1;
Fig. 9 is the top view of counterdie in Fig. 1;
Figure 10 is a kind of sectional view of LED lamp tube section bar.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below with reference to the accompanying drawings and embodiment, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, do not limit the utility model.
As shown in Figure 1, a kind of LED lamp tube extrusion die 100, comprise front guide 10, upper die and lower die 40, patrix comprises the first patrix 20 near front guide 10 and the second patrix 30 near counterdie 40, front guide 10, upper die and lower die 40 superpose successively and are assembled into one, and the first patrix 20 and the second patrix 30 adopt mosaic mode to be assembled into one.Particularly, first patrix 20 is provided with big mould core 23 near one end of the second patrix 30, second patrix 30 is provided with multiple small mould cores 33 of uniform intervals distribution near one end of counterdie 40, the first gap is formed between multiple small mould core 33, multiple small mould cores 33 of the second patrix 30 surround a through hole, the big mould core 23 of the first patrix 20 through the second patrix 30 through hole thus the first patrix 20 is inlayed with the second patrix 30 coordinate, multiple small mould core 33 is around big mould core 23, and big mould core 23 and small mould core 33 all extend in counterdie 40 and coordinate with counterdie 40.The second gap is formed between big mould core 23 and small mould core 33, third space is formed between small mould core 33 and counterdie 40, second gap is communicated with by the first gap with third space, metal liquid flows into counterdie 40 by front guide 10, first patrix 20 and the second patrix 30, and metal liquid flows into the second gap between big mould core 23 and small mould core 33, the third space between small mould core 33 and counterdie 40 and the first gap between multiple small mould core 33, thus mold product, obtain LED lamp tube after metal forming.
Utilize LED lamp tube extrusion die 100 to extrude production and obtain LED lamp tube, the sectional view of LED lamp tube as shown in Figure 10, LED lamp tube comprises macropore 51 and multiple aperture 52, big mould core 23 extend in counterdie 40 and is used for forming the macropore 51 in LED lamp tube, the cross sectional shape of big mould core 23 is corresponding with the cross sectional shape of macropore 51, small mould core 33 extend in counterdie 40 and is used for forming the aperture 52 in LED lamp tube, the cross sectional shape of small mould core 33 is corresponding with the cross sectional shape of aperture 52, multiple evenly spaced small mould core 33 forms annular, thus makes aperture 52 form annular.As shown in Figure 8, small mould core 33 becomes 20 near the hypotenuse of the first patrix 20 with the axis of the second patrix 30
0.
Front guide 10 is provided with pod apertures 11, first patrix 20 is provided with multiple first tap hole 21, second patrix 30 is provided with multiple second tap hole 31, a pod apertures 11 of front guide 10 is corresponding with multiple first tap holes 21 of the first patrix 20 to be communicated with, and the first tap hole 21 of the first patrix 20 is corresponding with the second tap hole 31 of the second patrix 30 to be communicated with.By utilizing the shunting of front guide 10, make metal through a predeformation and predistribution, metal is divided into multiply metal, by the first tap hole 21 by metal liquid uniform distribution through pod apertures 11 predeformation of front guide 10.And the metal that the pod apertures 11 that the first tap hole 21 of the first patrix 20 contacts with the corresponding front guide 10 be communicated with enters, therefore, the extruding force of metal will decline, and reduce the stressed of mould.
In the present embodiment, the quantity of pod apertures 11 is preferably 4, and the quantity of the first tap hole 21 and the second tap hole 31 is all preferably 16, and each pod apertures 11 of front guide 10 is corresponding with 4 the first tap holes 21 of the first patrix 20 to be communicated with.
Shown in Fig. 2, between the pod apertures 11 of front guide 10, form water conservancy diversion bridge 12, traditional will the lacking of pod apertures 11 number ratio that front guide 10 adopts, like this, the area of pod apertures 11 is just large, and split ratio during metal first time predeformation is just large, the intensity be conducive to reducing extruding force, improving mould.As shown in Figure 3, the angle 13 of spreading that pod apertures 11 and the axis of mould are formed is 5 ~ 10
0, be preferably 8
0, when metal liquid is by pod apertures 11, ensures metal liquid flow velocity, pressure more than 20% can be reduced, thus alleviate mould bear pressure.
Counterdie 40 is near the bonding container 41 of the second patrix 30 and the discharge opening 43 that is communicated with bonding container 41, big mould core 23 and small mould core 33 pass described bonding container 41 and stretch into the discharge opening 43 of counterdie 40, big mould core 23 and small mould core 33 and discharge opening 43 coordinate near the part of bonding container 41 and are formed into nibs 42, and the cross sectional shape of forming hole 42 is corresponding with LED lamp tube cross sectional shape.Metal enters bonding container 41 through the shunting of front guide 10, first patrix 20 and the second patrix 30, and gather through bonding container 41 and reduce circulation diameter to enter forming hole 42 more shaping, the product after shaping is discharged from discharge opening 43.As shown in Figure 10, big mould core 23 corresponds to macropore 51 position in LED lamp tube to the shaping LED lamp tube sectional view obtained, and multiple small mould core 33 corresponds to multiple apertures 52 position in LED lamp tube.
As shown in Figure 4 and Figure 6, form the first shunting bridge 22 between the first tap hole 21 of described first patrix 20, the width of described first shunting bridge 22 is 12 millimeters.Formed between second tap hole 31 of described second patrix 30 to shunt with described first bridge 22 position corresponding second shunt bridge 32, the described second width shunting bridge 32 is 12 millimeters.Multiple first tap hole 21 and multiple second tap holes 31 pairs of metal liquids are adopted to shunt, the quantity of the first tap hole 21 makes the width of the first shunting bridge 22 less more, the quantity of the second tap hole 31 makes the width of the second shunting bridge 32 less more, employing width is first shunting bridge 22 and the second shunting bridge 32 of 12 millimeters, counterdie 40 forming hole 42 flow rate of metal everywhere can be made like this to reach unanimity, the feed of metal is more rationally with even, forming errors is less, and the dimensional accuracy of shaping product can effectively ensure.Work strip like this for forming hole 42 also can be agreed, and eliminates by the operation of electric spark processing work band and is obtained by turnery processing, greatly providing cost savings and shorten the cycle of processing.
And in order to reduce the flow resistance of metal, as shown in Figure 3, chamfer design is adopted at the entrance and exit place of the water conservancy diversion bridge 12 of front guide 10, this just makes the entrance and exit place of the water conservancy diversion bridge 12 of front guide 10 form the guide frame of inclination, this guide frame can guarantee the flowing velocity of material, thus reduce the flow resistance of metal when extruding, improve product quality; And water conservancy diversion bridge 12 section neutral line can be made substantially to remain unchanged or offset downward, thus reduce the tension of mould, delay the fracture of water conservancy diversion bridge 12, thus improve the intensity of mould.
Particularly, as shown in Figure 3, the porch of water conservancy diversion bridge 12 adopts 40
0chamfer design, the exit of water conservancy diversion bridge 12 adopts 20
0chamfer design, the flow velocity of metal liquid can better be ensured like this; As shown in Figure 5, the exit of the first shunting bridge 22 of the first patrix 20 adopts 40
0chamfer design, as shown in Figure 7, the second patrix 30 second shunting bridge 32 exit adopt 40
0chamfer design.
As shown in Figure 9, counterdie 40 is also provided with shunts the corresponding support pier 44 in bridge 32 position with second of the second patrix 30, and support pier 44 can be played a supporting role to the second shunting bridge 32, thus improve the intensity of shunting bridge, ensure the stability of mould, ensure the intensity of mould, improve die life.And by arranging support pier 44, the span shunting bridge can be reduced, thus improve the intensity of shunting bridge.
The big mould core 23 of the first patrix 20 offers fabrication hole 24 near one end of discharge opening 43, fabrication hole 24 diameter is 40 millimeters, fabrication hole 24 is 145 millimeters along the degree of depth of its axis, can improve the quenching degree of mould when heat treatment, thus improves comprehensive mechanical performance and the intensity of mould.
In the utility model, patrix is that the first patrix 20 and the second patrix 30 adopt mosaic mode to combine, and namely the big mould core 23 of the first patrix 20 passes through hole thus the first patrix 20 is inlayed with the second patrix 30 and coordinates.Can process respectively the first patrix 20 and the second patrix 30 like this, big mould core 23 can be processed by the mode of turning, and small mould core 33 can by utilize after turnery processing small mould core 33 evenly, the feature of symmetric arrays and being formed by linear cutter.Due to the change of structure, in mold pressing process, do not use copper electrode and spark machined, greatly saved the cost manufactured, substantially reduced the cycle of processing.Mould Machining difficulty is simplified, and the accuracy of manufacture of mould easily ensures, flow velocity when making metal inflow counterdie shaping reaches unanimity, thus formed product size is occurred, and the possibility of deviation diminishes, and forming quality of products has had guarantee.
The above embodiment only have expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (10)
1. a LED lamp tube extrusion die, comprise upper die and lower die, it is characterized in that, described LED lamp tube extrusion die also comprises front guide, described front guide, upper die and lower die superpose successively and are assembled into one, described patrix comprises the first patrix near described front guide and the second patrix near described counterdie, described first patrix is provided with big mould core near one end of described second patrix, described second patrix is provided with multiple small mould core near one end of described counterdie, multiple small mould cores of described second patrix surround a through hole, the big mould core of described first patrix passes described through hole thus described first patrix and described second patrix is inlayed and is combined together.
2. LED lamp tube extrusion die according to claim 1, is characterized in that, described multiple small mould core uniform intervals distribution and around described big mould core.
3. LED lamp tube extrusion die according to claim 1, it is characterized in that, described front guide is provided with multiple pod apertures, described first patrix is provided with multiple first tap hole, described second patrix is provided with multiple second tap hole, a pod apertures of described front guide is corresponding with multiple first tap holes of described first patrix to be communicated with, and the first tap hole of described first patrix is corresponding with described second tap hole of described second patrix to be communicated with.
4. LED lamp tube extrusion die according to claim 3, it is characterized in that, the quantity of described pod apertures is 4, and the quantity of the first tap hole is 16, the quantity of the second tap hole is 16, and each pod apertures of described front guide is corresponding with 4 the first tap holes of described first patrix to be communicated with.
5. LED lamp tube extrusion die according to claim 3, is characterized in that, forms water conservancy diversion bridge between described pod apertures, and entrance and the exit of described water conservancy diversion bridge all adopt chamfer design.
6. LED lamp tube extrusion die according to claim 3, is characterized in that, the axis of described pod apertures and mould form 8 ° spread angle.
7. LED lamp tube extrusion die according to claim 3, is characterized in that, forms the first shunting bridge between the first tap hole of described first patrix, and the width of described first shunting bridge is 12 millimeters; Formed between second tap hole of described second patrix and to shunt bridge location with described first and put corresponding second and shunt bridge, the described second width shunting bridge is 12 millimeters.
8. LED lamp tube extrusion die according to claim 7, is characterized in that, described counterdie is also provided with to be shunted bridge location with described second and put corresponding support pier.
9. the LED lamp tube extrusion die according to any one of claim 1 to 8, it is characterized in that, the bonding container that described counterdie is provided with close described patrix and the discharge opening be communicated with described bonding container, described big mould core and described small mould core pass described bonding container and stretch into described discharge opening, described big mould core and described small mould core and described discharge opening coordinate near the part of described bonding container and are formed into nibs, and the cross sectional shape of described forming hole is corresponding with the cross sectional shape of LED lamp tube section bar.
10. LED lamp tube extrusion die according to claim 9, is characterized in that, the big mould core of described first patrix offers fabrication hole, and described fabrication hole is not communicated with described discharge opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420649806.9U CN204307963U (en) | 2014-10-31 | 2014-10-31 | LED lamp tube extrusion die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420649806.9U CN204307963U (en) | 2014-10-31 | 2014-10-31 | LED lamp tube extrusion die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204307963U true CN204307963U (en) | 2015-05-06 |
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ID=53130295
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420649806.9U Expired - Fee Related CN204307963U (en) | 2014-10-31 | 2014-10-31 | LED lamp tube extrusion die |
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| CN (1) | CN204307963U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107952813A (en) * | 2017-12-21 | 2018-04-24 | 江阴东华铝材科技有限公司 | A kind of pure electric vehicle machine cooling jacket mould |
| CN110238225A (en) * | 2019-07-23 | 2019-09-17 | 锐新昌轻合金（常熟）有限公司 | A kind of extrusion die and extrusion process of new-energy automobile water cooling motor housing |
| CN112893505A (en) * | 2021-02-09 | 2021-06-04 | 东莞市东联铝业有限公司 | High-precision matched power supply shell extrusion die |
-
2014
- 2014-10-31 CN CN201420649806.9U patent/CN204307963U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107952813A (en) * | 2017-12-21 | 2018-04-24 | 江阴东华铝材科技有限公司 | A kind of pure electric vehicle machine cooling jacket mould |
| CN110238225A (en) * | 2019-07-23 | 2019-09-17 | 锐新昌轻合金（常熟）有限公司 | A kind of extrusion die and extrusion process of new-energy automobile water cooling motor housing |
| CN112893505A (en) * | 2021-02-09 | 2021-06-04 | 东莞市东联铝业有限公司 | High-precision matched power supply shell extrusion die |
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Legal Events
| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150506 Termination date: 20201031 |