CN205673557U - A kind of die casting of lampshade - Google Patents

Abstract

nullThe utility model discloses the die casting of a kind of lampshade，Including cover half frame、Fixed mold core、Dynamic model frame、Mavable module core、Top board and push rod，Described fixed mold core lower surface and mavable module core upper surface define the die cavity of die cast after fitting tightly，Described fixed mold core center has the import of liquid metal material when die casting of a manhole，Described mavable module core has a dynamic model side runner groove and enters the passage of die cavity for casting material die casting，Described dynamic model side runner groove be divided into two and connect respectively before and after the die cavity of both sides，Described fixed mold core is additionally provided with two supplementary runners，Described supplementary runner one end other end that is connected with dynamic model side runner groove is connected with two ends die cavity before and after product，Described mavable module core the outside of die cavity be additionally provided with two overflow launders lay respectively at dynamic model side runner groove relative to die cavity opposite side before and after two ends，Described overflow launder is connected with die cavity，Product can be ejected from die cavity by described push rod by top board.

Description

A kind of die casting of lampshade

Technical field

This utility model relates to a kind of die casting, particularly relates to the die casting of a kind of lampshade.

Background technology

Die casting is a kind of method of casting liquid forging, is a kind of work completed on special die casting die forging machine Skill.Its basic craft course is: molten metal elder generation low speed or high-speed casting fill in the die cavity of type progressive die tool, and mould has the type of activity Face, chamber, it forges along with the cooling procedure of molten metal is pressurizeed, had both eliminated the shrinkage porosity defect of contraction cavity of blank, and also made the inside group of blank Knit the Broken Crystal reaching to forge state.The comprehensive mechanical performance of blank is significantly improved.In the die cast of product, especially It is in the forming process for case series products such as lampshades, bubble the most easily occurs or easily occurs on surface The phenomenons such as current mark, have a strong impact on product appearance, and this is necessary that to this problem the die casting developing a lampshade is to solve it The problems referred to above occurred in press casting procedure.

Utility model content

Technical problem to be solved in the utility model is: provide the die casting of a kind of lampshade, solves product and exists There is current mark and the problem that has a strong impact on product appearance in die cast rear surface.

For solving above-mentioned technical problem, the technical solution of the utility model is: the die casting of a kind of lampshade, including cover half Frame, fixed mold core, dynamic model frame, mavable module core, top board and push rod, described fixed mold core is positioned at cover half frame inside and is connected with its screw thread, Described mavable module core is positioned at dynamic model frame inside and is connected with its screw thread, described cover half frame and dynamic model frame consistency from top to bottom, described fixed mold core With mavable module core consistency from top to bottom, described fixed mold core lower surface and mavable module core upper surface define the type of die cast after fitting tightly Chamber, described fixed mold core center has the import of liquid metal material when die casting of a manhole, and described mavable module core has one Bar dynamic model side runner groove enters the passage of die cavity for casting material die casting, and the cross section of described dynamic model side runner groove is a band fillet Trapezoidal, described dynamic model side runner groove be divided into two and connect respectively before and after the die cavity of both sides, described fixed mold core is additionally provided with Two supplementary runners, described supplementary runner one end is connected with dynamic model side runner groove two ends die cavity phase before and after the other end and product Even, described mavable module core is additionally provided with two overflow launders and lays respectively at dynamic model side runner groove relative to die cavity opposite side in the outside of die cavity Before and after two ends, described overflow launder is connected with die cavity, and the design of this runner and overflow launder can avoid lampshade product follow-up Heating process in bubble problem, described overflow launder outer end is additionally provided with air discharge duct in die casting mold filling process by die cavity Gas discharge, described top board is positioned at dynamic model frame lower end, and described push rod is positioned at top board upper end and is connected with its screw thread, described top Product can be ejected from die cavity by bar by top board, and described push rod runs through mavable module core and dynamic model frame, push rod upper end and die cavity phase Even, described push rod can be additionally used in the aerofluxus in press casting procedure.

Compared with prior art, the die casting of a kind of lampshade, all around it is both provided with runner or overflow launder at die cavity, The problem that lampshade product bubbles in follow-up heating process can be prevented effectively from, it is ensured that can Reasonable adjustment during die cast The loading time of die-casting material, it is ensured that do not produce current mark because filling is too fast, also can guarantee that in stowing operation simultaneously and is unlikely to quick Cooling and occur that welded side seam etc. is bad, additionally the setting of overflow launder and air discharge duct can be by complete for type intracavity gas when ensure that filling Portion discharges, it is to avoid bubble occurs in product, the effect that additionally push rod the most only ejects, and is also beneficial to the smooth row that die cavity goes out at push rod Gas, can be prevented effectively from the generation of current mark, bubble when such runner and vent design ensure that product die cast, be conducive to Ensure the presentation quality of product.

Accompanying drawing explanation

Fig. 1 illustrates this utility model front view

Fig. 2 illustrates this utility model top view

Cover half frame 1, fixed mold core 2, dynamic model frame 3, mavable module core 4, top board 5, push rod 6, die cavity 21, manhole 22, supplementary stream Road 23, dynamic model side runner groove 41, overflow launder 42, air discharge duct 43

Detailed description of the invention

As depicted in figs. 1 and 2, the die casting of a kind of lampshade, including cover half frame 1, fixed mold core 2, dynamic model frame 3, mavable module core 4, top board 5 and push rod 6, described fixed mold core 2 is positioned at cover half frame 1 inside and is connected with its screw thread, and described mavable module core 4 is positioned at dynamic model Frame 3 is internal and is connected with its screw thread, and described cover half frame 1 and dynamic model frame 3 consistency from top to bottom, described fixed mold core 2 and mavable module core about 4 are right Together, described fixed mold core 2 lower surface and mavable module core 4 upper surface define the die cavity 21 of die cast, described cover half after fitting tightly Core 2 center has the import of liquid metal material when die casting of a manhole 22, and described mavable module core 4 has a dynamic model side Flow path groove 41 enters the passage of die cavity 21 for casting material die casting, and the cross section of described dynamic model side runner groove 41 is one with rounded corners Trapezoidal, described dynamic model side runner groove 41 be divided into two and connect respectively before and after the die cavity 21 of both sides, described fixed mold core 2 also sets up Two supplementary runners 23, described supplementary runner 23 one end are had to be connected with dynamic model side runner groove 41 other end and rear and front end die cavity 21 Being connected, described mavable module core 4 is additionally provided with two overflow launders 42 in the outside of die cavity 21, and to lay respectively at dynamic model side runner groove 41 relative Two ends before and after die cavity 21 opposite side, described overflow launder 42 is connected with die cavity 21, and described overflow launder 42 outer end is additionally provided with aerofluxus Gas in die cavity 21 is discharged in die casting mold filling process by groove 43, and described top board 5 is positioned at dynamic model frame 3 lower end, described push rod 6 Being positioned at top board 5 upper end and be connected with its screw thread, product can be ejected from die cavity by described push rod 6 by top board 5, described top Bar 6 runs through mavable module core 4 and dynamic model frame 3, and push rod 6 upper end is connected with die cavity 21, and described push rod 6 can be additionally used in the row in press casting procedure Gas.During die cast, fixed mold core and mavable module core are bonded to each other, and die-casting material is positioned over circle by be positioned at fixed mold core center Sprue bush in through hole enters dynamic model side runner, and subsequently into mold filling, the air in die cavity is by between fixed half and moving half Gap, overflow launder and push rod and mavable module core between gap discharge, after filling until lampshade cool down after, cover half and dynamic model Disengaging, by push rod, lampshade has been ejected the demoulding, the structure of cast die of this structure, by being arranged at mavable module core and cover half Flow path groove in core and supplementary runner, can effectively regulate the filling velocity of die-casting material, it is to avoid the appearance of product surface current mark, overflows The setting of chute makes the discharge of the air of the medium-sized intracavity of stowing operation more fully, effectively prevent bubble in forming process Generation, the design of the most this runner and overflow launder can be prevented effectively from lampshade product carry out post processing heating time occur The problem bubbled.

This utility model is not limited to above-mentioned specific embodiment, and those of ordinary skill in the art visualizes from above-mentioned Sending out, without performing creative labour, all conversion made, within all falling within protection domain of the present utility model.

Claims (3)

1. the die casting of a lampshade, it is characterised in that include cover half frame, fixed mold core, dynamic model frame, mavable module core, top board and top Bar, it is internal and be connected with its screw thread that described fixed mold core is positioned at cover half frame, described mavable module core be positioned at inside dynamic model frame and with its spiral shell Stricture of vagina is connected, described cover half frame and dynamic model frame consistency from top to bottom, described fixed mold core and mavable module core consistency from top to bottom, described fixed mold core lower surface Defining the die cavity of die cast with mavable module core upper surface after fitting tightly, described fixed mold core center has a manhole and uses The import of liquid metal material when die casting, described mavable module core has a dynamic model side runner groove and enters die cavity for casting material die casting Passage, the cross section of described dynamic model side runner groove is one with rounded corners trapezoidal, described dynamic model side runner groove be divided into two and The die cavity of both sides before and after connecting respectively, described fixed mold core is additionally provided with two supplementary runners, described supplementary runner one end and dynamic model The side runner groove other end that is connected is connected with two ends die cavity before and after product, and described mavable module core is additionally provided with two in the outside of die cavity Overflow launder lays respectively at dynamic model side runner groove relative to two ends before and after die cavity opposite side, and described overflow launder is connected with die cavity, described Top board is positioned at dynamic model frame lower end, and described push rod is positioned at top board upper end and is connected with its screw thread, and described push rod is permissible by top board Product is ejected from die cavity.

The die casting of a kind of lampshade the most as claimed in claim 1, it is characterised in that described overflow launder outer end is also provided with Gas in die cavity is discharged in die casting mold filling process by air discharge duct.

The die casting of a kind of lampshade the most as claimed in claim 2, it is characterised in that described push rod runs through mavable module core and dynamic model Frame, push rod upper end is connected with die cavity, and described push rod can be additionally used in the aerofluxus in press casting procedure.