CN215786664U

CN215786664U - Seamless forming die-casting die

Info

Publication number: CN215786664U
Application number: CN202122073594.7U
Authority: CN
Inventors: 张作坚
Original assignee: Dongguan Hongwei Precision Hardware Products Co ltd
Current assignee: Dongguan Hongwei Precision Hardware Products Co ltd
Priority date: 2021-08-30
Filing date: 2021-08-30
Publication date: 2022-02-11
Anticipated expiration: 2031-08-30

Abstract

The utility model provides a die casting die for traceless forming.A top bolster is connected with a top template through a first spring; the upper die plate is provided with a feeding pipe, the bottom end of the feeding pipe is connected with a longitudinal flow passage, the bottom of the upper die plate is fixed with a convex module and a wedge-shaped push rod, the upper die plate is provided with a blanking passage hole, a yielding hole and a push rod moving hole, the feeding pipe is connected in the blanking passage hole in a sliding mode, the convex module is connected in the yielding hole in a sliding mode, and the wedge-shaped push rod is connected in the push rod moving hole in a sliding mode; be equipped with the die cavity on the lower bolster, die cavity one side is connected with the flat runner, and the bottom in flat runner is connected with the movable groove, and sliding connection has wedge slider in the flat runner, and the bottom of wedge slider is fixed with the spacing slider of sliding connection in the movable groove, is connected with the second spring between the end wall in spacing slider and movable groove. The die-casting device can drive the wedge-shaped sliding block to remove residual molten metal in the flat flow channel, can die-cast a smooth and traceless metal piece, and is stable and reliable in action.

Description

Seamless forming die-casting die

Technical Field

The utility model relates to a die-casting die, and particularly discloses a traceless forming die-casting die.

Background

The die casting die is usually processed from high-strength alloy, the die casting process is to cast molten metal into a cavity, then apply high pressure to the molten metal by using an inner cavity of the die, and a metal piece matched with the die casting cavity is obtained by processing, and the die casting is a common metal piece manufacturing tool.

During die-casting, die casting die carries out the compound die after, pours into fused metal liquid into the die cavity through the casting runner that corresponds, obtains the metalwork structure after the cooling shaping, and in the forming process, the metal liquid that remains in the casting runner can be formed with certain contact with the metal liquid in the die cavity, obtains the metalwork surface after the shaping and can be connected with unnecessary water mouth spare, need cut the step and just can clear away the water mouth spare, and can remain the incision vestige on the metalwork surface after cutting.

SUMMERY OF THE UTILITY MODEL

Therefore, in order to solve the problems in the prior art, a need exists for a seamless forming die-casting mold, which can be used for die-casting a metal part with a smooth and seamless surface, and has stable and reliable processing action without performing additional water gap cutting processing.

In order to solve the prior art problem, the utility model discloses a die-casting die for traceless forming, which comprises an upper backing plate, an upper template, a lower die holder and a lower backing plate which are sequentially arranged from top to bottom, wherein the upper backing plate is connected with the upper template through a first spring;

the upper die plate is provided with a feeding pipe, the bottom end of the feeding pipe is connected with a longitudinal flow passage, the bottom of the upper die plate is fixed with a convex module and a wedge-shaped push rod, the upper die plate is provided with a blanking passage hole, a yielding hole and a push rod moving hole, the feeding pipe is connected in the blanking passage hole in a sliding mode, the convex module is connected in the yielding hole in a sliding mode, and the wedge-shaped push rod is connected in the push rod moving hole in a sliding mode;

be equipped with the die cavity that is located under the convex die piece on the lower bolster, die cavity one side is connected with the flat runner that is located the runner below of indulging, and the bottom of flat runner is connected with the movable groove, and sliding connection has the wedge slider that can be promoted the translation by the wedge push rod in the flat runner, and the bottom of wedge slider is fixed with sliding connection in the spacing slider of movable groove, is connected with the second spring between the end wall of spacing slider and movable groove.

Furthermore, the bottom of the upper backing plate is fixed with a guide post, and the lower template is provided with a guide hole for the guide post to be inserted in a sliding manner.

Furthermore, four first springs are arranged at four corners of the upper template.

Furthermore, the limiting slide block is a dovetail slide block, and the movable groove is a dovetail groove.

Furthermore, a lifting cavity is arranged in the lower die base, a lifting plate is connected in the lifting cavity in a sliding mode, a third spring is connected between the lifting plate and the lower die plate, an ejector rod is fixed on the lifting plate, stripping holes with two ends respectively connected with the concave die cavity and the lifting cavity are formed in the lower die plate, and the ejector rod is connected in the stripping holes in a sliding mode.

The utility model has the beneficial effects that: the utility model discloses a traceless forming die-casting die which is provided with a special runner cleaning structure, wherein after molten metal is injected, a convex die block further descends to realize die-casting, a wedge-shaped push rod can drive a wedge-shaped slide block to horizontally move to remove residual metal liquid in a flat runner, so that all metal liquid can be effectively cooled and formed in a cavity of a female die, a metal piece with a smooth and traceless surface can be die-cast, the processing action is stable and reliable, additional water gap cutting processing is not needed, and material waste can be effectively avoided.

Drawings

FIG. 1 is a schematic view of the mold opening of the present invention.

Fig. 2 is a schematic structural diagram of the die assembly and die casting of the present invention.

The reference signs are: the device comprises an upper backing plate 10, a longitudinal runner 11, a feeding pipe 12, a convex die block 13, a wedge-shaped push rod 14, a guide post 15, an upper die plate 20, a first spring 21, a blanking channel hole 22, an abdicating hole 23, a push rod movable hole 24, a lower die plate 30, a female die cavity 31, a horizontal runner 32, a movable groove 33, a wedge-shaped slide block 34, a limiting slide block 35, a second spring 36, a guide hole 37, a stripping hole 38, a lower die holder 40, a lifting cavity 41, a lower backing plate 50, a lifting plate 60, a third spring 61 and a push rod 62.

Detailed Description

For further understanding of the features and technical means of the present invention, as well as the specific objects and functions attained by the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description.

Refer to fig. 1 and 2.

The embodiment of the utility model discloses a die-casting die for traceless forming, which comprises an upper backing plate 10, an upper template 20, a lower template 30, a lower die holder 40 and a lower backing plate 50 which are sequentially arranged from top to bottom, wherein the upper backing plate 10 is connected with the upper template 20 through a first spring 21, and the structure is shown in figure 1 when the die is opened;

a longitudinal flow channel 11 is arranged in an upper base plate 10, the bottom end of the longitudinal flow channel 11 is connected with a feeding pipe 12, a convex module 13 and a wedge-shaped push rod 14 are fixed at the bottom of the upper base plate 10, a blanking passage hole 22, a yielding hole 23 and a push rod moving hole 24 are arranged in an upper plate 20, the feeding pipe 12 is connected in the blanking passage hole 22 in a sliding manner, the convex module 13 is connected in the yielding hole 23 in a sliding manner, and the wedge-shaped push rod 14 is connected in the push rod moving hole 24 in a sliding manner;

be equipped with on the lower bolster 30 and be located the die cavity 31 of boss piece 13 directly below, die cavity 31 one side is connected with the flat runner 32 that is located vertical runner 11 below, the bottom of flat runner 32 is connected with movable groove 33, sliding connection has the wedge slider 34 that can be promoted the translation by wedge push rod 14 in the flat runner 32, the bottom of wedge slider 34 is fixed with the spacing slider 35 of sliding connection in movable groove 33, be connected with the second spring 36 that is used for driving spacing slider 35 and resets between the end wall of spacing slider 35 and movable groove 33.

When the die assembly device works, the die assembly is firstly carried out, the upper die plate 20 is tightly attached to the lower die plate 30, and molten metal flows through the flat runner 32 from the longitudinal channel 11 and enters the female die cavity 31; after the liquid injection is completed, as shown in fig. 2, the upper cushion plate 10 further descends, the first spring 21 is compressed, the position of the upper mold plate 20 is unchanged, the male mold block 13 and the wedge push rod 14 descend synchronously, the wedge push rod 14 descends to push the wedge slide block 34 to move horizontally close to the female mold cavity 31, all the molten metal remaining in the flat runner 32 is pushed into the female mold cavity 31, the situation that extra cutting processing is needed after the forming due to the formation of a water gap of the material is avoided, the defects that dents and the like are formed on the surface of the finally obtained metal part can be effectively avoided, the male mold block 13 is pressed into the female mold cavity 31, the molten metal in the female mold cavity is subjected to die-casting shaping, and the metal part with a traceless surface is obtained after cooling.

In this embodiment, the guide posts 15 are fixed at the bottom of the upper cushion plate 10, and the guide holes 37 for slidably inserting the guide posts 15 are formed in the lower mold plate 30, so that the stability of the die opening and closing action of the die-casting mold can be improved.

In this embodiment, four first springs 21 are provided, and four first springs 21 are distributed at four corners of the upper mold plate 20, so that the reliability of the relative movement between the upper mold plate 20 and the upper cushion plate 10 can be effectively improved.

In this embodiment, limiting slide block 35 is the swallow-tail form slider, and movable groove 33 is the swallow-tail form recess, and the structure through the swallow-tail form can effectively improve the stability of connection structure between limiting slide block 35 and the movable groove 33, avoids limiting slide block 35 to break away from movable groove 33 motion.

In this embodiment, a lifting cavity 41 is arranged in the lower die holder 40, a lifting plate 60 is slidably connected in the lifting cavity 41, a third spring 61 is connected between the lifting plate 60 and the lower die plate 30, an ejector rod 62 is fixed on the lifting plate 60, stripping holes 38 with two ends respectively connected with the cavity 31 and the lifting cavity 41 are arranged in the lower die plate 30, the ejector rod 62 is slidably connected in the stripping holes 38 and used for ejecting and stripping the metal piece after the die opening for forming, and a through hole structure for enabling an external ejection power mechanism to drive the lifting plate 60 to ascend and realize abdicating is arranged in the lower backing plate 50.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The die-casting die for the traceless forming is characterized by comprising an upper backing plate (10), an upper template (20), a lower template (30), a lower die holder (40) and a lower backing plate (50), which are sequentially arranged from top to bottom, wherein the upper backing plate (10) is connected with the upper template (20) through a first spring (21);

a longitudinal flow channel (11) is arranged in the upper base plate (10), the bottom end of the longitudinal flow channel (11) is connected with a feeding pipe (12), a convex module (13) and a wedge-shaped push rod (14) are fixed at the bottom of the upper base plate (10), a blanking passage hole (22), a yielding hole (23) and a push rod movable hole (24) are arranged in the upper template (20), the feeding pipe (12) is connected in the blanking passage hole (22) in a sliding manner, the convex module (13) is connected in the yielding hole (23) in a sliding manner, and the wedge-shaped push rod (14) is connected in the push rod movable hole (24) in a sliding manner;

be equipped with on lower bolster (30) and be located die cavity (31) under convex mould piece (13), die cavity (31) one side is connected with and is located flat runner (32) of runner (11) below indulge, the bottom of flat runner (32) is connected with activity groove (33), sliding connection has in flat runner (32) can by wedge push rod (14) promote wedge slider (34) of translation, the bottom of wedge slider (34) be fixed with sliding connection in spacing slider (35) in activity groove (33), spacing slider (35) with be connected with second spring (36) between the end wall of activity groove (33).

2. The die-casting die for the traceless forming of the claim 1 is characterized in that the guide post (15) is fixed at the bottom of the upper backing plate (10), and the guide hole (37) for the guide post (15) to be inserted and connected in a sliding mode is formed in the lower backing plate (30).

3. The die-casting die for traceless molding of claim 1, wherein the number of the first springs (21) is four, and four first springs (21) are distributed at four corners of the upper die plate (20).

4. The die-casting die for traceless molding according to claim 1, wherein the limiting sliding block (35) is a dovetail-shaped sliding block, and the movable groove (33) is a dovetail-shaped groove.

5. The die-casting die for the traceless molding of claim 1, wherein a lifting cavity (41) is arranged in the lower die holder (40), a lifting plate (60) is connected in the lifting cavity (41) in a sliding manner, a third spring (61) is connected between the lifting plate (60) and the lower die plate (30), an ejector rod (62) is fixed on the lifting plate (60), a stripping hole (38) is arranged in the lower die plate (30), two ends of the stripping hole are respectively connected with the female die cavity (31) and the lifting cavity (41), and the ejector rod (62) is connected in the stripping hole (38) in a sliding manner.