CN210475481U - Die casting die of heat dissipation lamp shade - Google Patents
Die casting die of heat dissipation lamp shade Download PDFInfo
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- CN210475481U CN210475481U CN201921157073.6U CN201921157073U CN210475481U CN 210475481 U CN210475481 U CN 210475481U CN 201921157073 U CN201921157073 U CN 201921157073U CN 210475481 U CN210475481 U CN 210475481U
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Abstract
The utility model discloses a die casting die of heat dissipation lamp shade, including last template, lower template and mould foot, be equipped with the thimble board between the mould foot, it inlays and has the upper die benevolence to go up the template, the lower template is inlayed and is had lower mould benevolence, the lower template is equipped with the spreader cone, the lower template is equipped with a plurality of overflow launders, the end of overflow launder is equipped with the air discharge duct, and the runner is located the lower mould benevolence, the runner is located the machine tooling face of the oral area of the heat dissipation lamp shade of bowl form, the runner has the inclined plane that guides the molten metal injection direction, and the direction that the molten metal was impressed the die cavity through the inclined plane is from the oral area of one side of bowl form lamp shade; the gate is arranged on the machining surface of the product, and is provided with an inclined surface for guiding the injection direction of the molten metal, so that the resistance of molten metal injection is reduced, the pore defects of the product are reduced, the injection pressure of the molten metal can be relatively reduced, the damage of the mold caused by excessive pressure is prevented, and the service life of the mold is prolonged.
Description
Technical Field
The utility model belongs to the technical field of the mould, especially, relate to a die casting die.
Background
The die-casting die is a tool for casting metal parts, and is a tool for completing a die-casting process on a special die-casting die forging machine. The basic process of die casting comprises the following steps: molten metal is cast at low speed or high speed and filled into the cavity of the mold, the mold has movable cavity surface, and it is pressurized and forged along with the cooling process of the molten metal, so that the shrinkage cavity and shrinkage porosity defects of the blank are eliminated, and the internal structure of the blank reaches the broken crystal grains in the forged state. The comprehensive mechanical property of the blank is obviously improved;
when the product is die-cast, the die-cast aluminum mold with high pressure and high filling speed is two main characteristics of die-cast aluminum. It is commonly used with shot specific pressures of from several thousand to tens of thousands of kPa, and even as high as 2 x 105 kPa. The filling speed is about 10-50 m/s, sometimes even can reach more than 100m/s, the filling time is very short, generally in the range of 0.01-0.2 s, because the pressure when the metal liquid is filled is large, the huge impact force is easy to form a mucosa when meeting the cavity wall, and a lot of injection pressure is lost, so that the product is not filled fully and is discarded.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a heat dissipation lamp shade's die casting die, its machine tooling face of locating the product with the runner to being provided with the inclined plane of the injection direction of guide metal liquid, reducing the resistance that the metal liquid pours into, reducing the gas pocket defect of product, the injection pressure of reduction metal liquid that moreover can be relative prevents that too big pressure from causing the damage of mould, improves the life-span of mould.
In order to solve the technical problem, the utility model discloses a technical scheme be: a die-casting die for a heat-radiating lampshade is bowl-shaped and comprises an upper die frame plate, a lower die frame plate and die legs, wherein the lower die frame plate is fixedly connected with the die legs, and ejector pin plates are arranged between the die legs;
the upper die frame plate is embedded with an upper die core, the lower die frame plate is embedded with a lower die core, the lower die frame plate is provided with a spreader cone, the spreader cone is positioned on one side of the lower die core, the lower die frame plate is provided with a plurality of overflow chutes, the overflow chutes are positioned on one side opposite to the spreader cones, and the tail ends of the overflow chutes are provided with exhaust chutes;
the gate is arranged on the lower die core, the gate is positioned on the machined surface of the opening part of the bowl-shaped heat dissipation lamp shade, the gate is provided with an inclined plane for guiding the injection direction of the molten metal, and the molten metal is pressed into the cavity from the opening part on one side of the bowl-shaped lamp shade to the bottom of the lamp shade through the inclined plane.
Further, go up the mold frame board and the lower mold frame board has a plurality of cold water flow channels that are used for the cooling, cold water flow channel includes horizontal runner and vertical runner, all horizontal runner is followed the outside direction equipartition of heat dissipation lamp shade, vertical runner with horizontal runner intercommunication.
Furthermore, the water inlet and the water outlet of the cold water channel are provided with corresponding serial number marks for entering and exiting.
Furthermore, the opening of the heat-dissipating lampshade is provided with a mounting lug for mounting a screw, and the lower die core is provided with the overflow groove and the exhaust groove at the position of the mounting lug.
Further, the gates include a first gate, a second gate and a third gate, the first gate, the second gate and the third gate are arranged along the mouth of the heat dissipation lamp cover in a fan shape, and the central angle of the fan shape is 40-50 °.
Further, the central angle of the fan shape is 45 °.
Furthermore, the number of the overflow grooves is 9, the 9 overflow grooves are uniformly distributed along the opening of the heat dissipation lampshade, and the fan-shaped central angle formed by the 9 overflow grooves is 120 degrees.
Further, the die-casting die is an aluminum die-casting die, and the molten metal is aluminum molten metal.
The utility model has the advantages that:
the die-casting die of the utility model has the advantages that the sprue is arranged on the machining surface of the product, and the inclined plane for guiding the injection direction of the molten metal is arranged, so that the injection resistance of the molten metal is reduced, the pore defect of the product is reduced, the injection pressure of the molten metal can be relatively reduced, the damage of the die caused by excessive pressure is prevented, and the service life of the die is prolonged;
the upper die frame plate and the lower die frame plate are provided with a plurality of cold water flow channels for cooling, the cold water flow channels are uniformly distributed along the outer surface of the radiating lampshade, local cooling can be implemented according to requirements, and the quality of products is improved; the sprue comprises a first sprue, a second sprue and a third sprue which are arranged in a fan shape, and an overflow groove and an exhaust groove which are designed on the opposite side of the sprue are combined, so that the pressure stability of the die-casting system and the flow speed stability of molten metal are ensured.
The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.
Drawings
Fig. 1 is a schematic structural view of a heat-dissipating lamp cover of the present invention;
fig. 2 is a schematic overall structure diagram of the die casting mold of the present invention;
FIG. 3 is a schematic structural view of the upper mold frame plate and the upper mold core of the present invention;
FIG. 4 is a schematic structural view of the lower mold frame plate and the lower mold core of the present invention;
fig. 5 is a cross-sectional view of the die casting mold of the present invention;
fig. 6 is an enlarged view of a portion a of fig. 5 (runner duct);
the parts in the drawings are marked as follows:
the upper mold comprises an upper mold frame plate 1, an upper mold core 11, a cold water runner 12, a horizontal runner 121, a vertical runner 122 and a number mark 123;
a lower die frame plate 2 and a lower die core 21;
a mold leg 3;
an ejector plate 4;
a spreader cone 5;
an overflow tank 6 and an exhaust tank 61;
gate 7, slope 71, first gate 72, second gate 73, and third gate 74;
heat-dissipating lamp cover 9, machined surface 91, and mounting ears 92.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
Example (b): a die-casting die for a heat-radiating lamp cover is shown in figures 1 to 6: the heat-radiating lampshade 9 is bowl-shaped, the die-casting die comprises an upper die frame plate 1, a lower die frame plate 2 and die feet 3, the lower die frame plate is fixedly connected with the die feet, and an ejector pin plate 4 is arranged between the die feet;
the upper die frame plate is embedded with an upper die core 11, the lower die frame plate is embedded with a lower die core 21, the lower die frame plate is provided with a spreader cone 5, the spreader cone is positioned on one side of the lower die core, the lower die frame plate is provided with a plurality of overflow chutes 6, the overflow chutes are positioned on one side opposite to the spreader cones, and the tail ends of the overflow chutes are provided with exhaust chutes 61;
in this embodiment, the upper mold core is a female mold, the lower mold core is a male mold, the ejector pins of the ejector pin plate abut against the inner surface (the side without the heat dissipation fins) of the heat dissipation lampshade, and the ejector pins cannot be arranged due to the appearance requirement on the surface of the heat dissipation lampshade.
As shown in fig. 4 to 6: the gate 7 is disposed on the lower mold core, the gate is located on the machined surface 91 of the mouth of the bowl-shaped heat dissipation lamp cover, the gate is located on the lower mold core, the gate is provided with a sunken groove in the lower mold core, the gate has an inclined plane 71 guiding the molten metal injection direction, the inclined plane is a side wall of the groove, as shown by an arrow in fig. 5: the direction that the die cavity was impressed through the inclined plane is from the oral area of one side of bowl form lamp shade towards the bottom of lamp shade, and the injection direction of metal liquid is for following promptly the lateral wall of heat dissipation lamp shade pours into towards its bottom into to this, firstly can avoid the impact of metal liquid, and secondly the position of runner is at the machined surface of oral area to not at the lateral wall of work piece, when getting the overlap after getting rid of, can prevent when breaking off with the fingers and thumb that the lateral wall lacks the material, if there is the scarce material machined surface, can mend the paper-back through the machine tooling.
As shown in fig. 2 and 6: go up the mold frame board and lower mold frame board and have a plurality of cold water runner 12 that are used for the cooling, cold water runner includes horizontal runner 121 and vertical runner 122, all horizontal runner follows the outside direction equipartition of heat dissipation lamp shade, vertical runner with horizontal runner intercommunication.
And the water inlet and the water outlet of the cold water channel are provided with serial numbers 123 corresponding to the inlet and the outlet.
In the embodiment, as shown in fig. 1: the opening of the heat-dissipating lampshade is provided with a mounting lug 92 for mounting a screw, and the lower die core is provided with the overflow groove and the exhaust groove at the position of the mounting lug.
The gates include a first gate 72, a second gate 73 and a third gate 74, the first gate, the second gate and the third gate are arranged along the mouth of the heat-dissipating lamp cover in a fan shape, and the central angle of the fan shape is 40-50 °.
In this embodiment, according to an optimal design, the central angle of the fan shape is 45 °.
The number of the overflow grooves is 9, the 9 overflow grooves are uniformly distributed along the opening of the heat dissipation lampshade, and the fan-shaped central angle formed by the 9 overflow grooves is 120 degrees.
In this embodiment, the die casting mold is an aluminum die casting mold, and the molten metal is aluminum molten metal.
The utility model discloses a working process and theory of operation as follows:
the pouring gate of the die-casting die is arranged on the machining surface of a product, and is provided with an inclined surface for guiding the injection direction of the molten metal, so that the injection resistance of the molten metal is reduced, the pore defects of the product are reduced, the injection pressure of the molten metal can be relatively reduced, the die is prevented from being damaged due to excessive pressure, and the service life of the die is prolonged;
the upper die frame plate and the lower die frame plate are provided with a plurality of cold water flow channels for cooling, the cold water flow channels are uniformly distributed along the outer surface of the radiating lampshade, local cooling can be implemented according to requirements, and the quality of products is improved; the sprue comprises a first sprue, a second sprue and a third sprue which are arranged in a fan shape, and an overflow groove and an exhaust groove which are designed on the opposite side of the sprue are combined, so that the pressure stability of the die-casting system and the flow speed stability of molten metal are ensured.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the same principle as the present invention.
Claims (8)
1. The utility model provides a die casting die of heat dissipation lamp shade, heat dissipation lamp shade (9) are bowl form, its characterized in that: the die-casting die comprises an upper die frame plate (1), a lower die frame plate (2) and die feet (3), wherein the lower die frame plate is fixedly connected with the die feet, and an ejector pin plate (4) is arranged between the die feet;
an upper die core (11) is embedded in the upper die frame plate, a lower die core (21) is embedded in the lower die frame plate, the lower die frame plate is provided with a spreader cone (5), the spreader cone is positioned on one side of the lower die core, the lower die frame plate is provided with a plurality of overflow grooves (6), the overflow grooves are positioned on one side opposite to the spreader cone, and the tail ends of the overflow grooves are provided with exhaust grooves (61);
and the gate (7) is arranged on the lower die core, is positioned on a machined surface (91) of the opening part of the bowl-shaped heat dissipation lampshade, is provided with an inclined surface (71) for guiding the injection direction of the molten metal, and is pressed into the cavity from the opening part on one side of the bowl-shaped lampshade to the bottom of the lampshade through the inclined surface.
2. The die casting mold of the heat-dissipating lamp cover as claimed in claim 1, wherein: go up the mold frame board and lower mold frame board and have a plurality of cold water runner (12) that are used for the cooling, cold water runner includes horizontal runner (121) and vertical runner (122), all horizontal runner follows the outside direction equipartition of heat dissipation lamp shade, vertical runner with horizontal runner intercommunication.
3. The die casting mold of the heat-dissipating lamp cover as claimed in claim 2, wherein: the water inlet and the water outlet of the cold water channel are provided with corresponding inlet and outlet number marks (123).
4. The die casting mold of the heat-dissipating lamp cover as claimed in claim 1, wherein: the opening of the heat-radiating lampshade is provided with a mounting lug (92) for mounting a screw, and the lower die core is provided with the overflow groove and the exhaust groove at the position of the mounting lug.
5. The die casting mold of the heat-dissipating lamp cover as claimed in claim 1, wherein: the gates comprise a first gate (72), a second gate (73) and a third gate (74), the first gate, the second gate and the third gate are arranged along the opening of the heat-radiating lamp cover in a fan shape, and the central angle of the fan shape is 40-50 degrees.
6. The die casting mold of the heat-dissipating lamp cover as claimed in claim 5, wherein: the central angle of the fan shape is 45 degrees.
7. The die casting mold of the heat-dissipating lamp cover as claimed in claim 1, wherein: the number of the overflow grooves is 9, the 9 overflow grooves are uniformly distributed along the opening of the heat dissipation lampshade, and the fan-shaped central angle formed by the 9 overflow grooves is 120 degrees.
8. The die casting mold of the heat-dissipating lamp cover as claimed in claim 1, wherein: the die-casting die is an aluminum die-casting die, and the molten metal is aluminum molten metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921157073.6U CN210475481U (en) | 2019-07-23 | 2019-07-23 | Die casting die of heat dissipation lamp shade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921157073.6U CN210475481U (en) | 2019-07-23 | 2019-07-23 | Die casting die of heat dissipation lamp shade |
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| Publication Number | Publication Date |
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| CN210475481U true CN210475481U (en) | 2020-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921157073.6U Active CN210475481U (en) | 2019-07-23 | 2019-07-23 | Die casting die of heat dissipation lamp shade |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112792316A (en) * | 2020-12-18 | 2021-05-14 | 苏州广型模具有限公司 | Forming device of new energy machine case |
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2019
- 2019-07-23 CN CN201921157073.6U patent/CN210475481U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112792316A (en) * | 2020-12-18 | 2021-05-14 | 苏州广型模具有限公司 | Forming device of new energy machine case |
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