CN215697877U

CN215697877U - Governing valve die mould

Info

Publication number: CN215697877U
Application number: CN202122088548.4U
Authority: CN
Inventors: 袁兴国; 吴俊军; 闫玉明
Original assignee: Kunshan Zidong Metal Products Co ltd
Current assignee: Kunshan Zidong Metal Products Co ltd
Priority date: 2021-09-01
Filing date: 2021-09-01
Publication date: 2022-02-01
Anticipated expiration: 2031-09-01

Abstract

The utility model discloses a regulating valve die-casting die, which comprises a die holder, a lower die plate, an upper die plate, a guide rod guide sleeve assembly, an upper die core and a lower die core, wherein the upper die core and the lower die core are matched to form a parting surface, a die cavity for integrally forming three parts of a valve cover, a valve core and a valve seat of the regulating valve is arranged between the upper die core and the lower die core, and two groups of die cavities which are centrosymmetric are formed, the inner sides of the die cavities of the valve cover, the valve core and the valve seat are connected with a branch pouring channel, the outer sides of the die cavities are connected with a first overflow groove, the regulating valve die-casting die is internally provided with three parts of the valve cover, the valve core and the valve seat, one die and multiple cavities are die-cast, overflow grooves with different sizes and specifications are independently designed according to the volume size and the structural wall thickness of each part, so that metal liquid in each independent die cavity is fully compressed, the working conditions and die-casting raw material components are unified, the quality of the formed products is equivalent, and the regulating valve after the finished products are assembled is automatically integrated, the material has the same strength and can prolong the service life.

Description

Governing valve die mould

Technical Field

The utility model relates to the technical field of dies, in particular to a regulating valve die-casting die.

Background

The present air pressure and hydraulic control system gradually increase, and the technical requirement to control valve also constantly improves, and the governing valve is one of the valve product that frequency of use is the highest, and the multiple breakthrough that has gone on in the production technology all has apparent technological progress no matter in die-casting production, still aftertreatment is polished to and in the aspect of the accuracy control, and under the supply demand of batch production, the production efficiency of each spare part of valve need promote by a wide margin, and be several main parts of governing valve together: the valve cover, the valve core and the valve seat are completely the same in production process and material selection, and are all produced by die casting of the same material. However, because different die-casting molds are produced under different working conditions, die-casting raw materials are produced under different conditions, and finally, a regulating valve product formed by reassembling finished parts has poor running-in effect in use, if the main parts can be produced by adopting the same die-casting mold, the working conditions and the components of the die-casting raw materials are unified, the formed product has equivalent texture, the regulating valve formed by assembling the finished parts is self-integrated, the material strength is kept level, can prolong the service life, so that the die-casting equipment capable of forming a plurality of main parts on the same die core is required to be designed, and the die-casting is ensured, according to the volume and structural characteristics of each part, the overflow groove is independently designed so as to ensure the quality of the finished product produced and prepared.

SUMMERY OF THE UTILITY MODEL

The purpose of the utility model is as follows: in view of technical requirements in the background art, a regulating valve die-casting die is designed, a die cavity comprising a valve cover, a valve core and a valve seat is arranged in a die core, one die is formed by multi-cavity die-casting, overflow grooves with different sizes and specifications are independently designed according to the volume size and the structural wall thickness of each part, molten metal in each independent die cavity is fully compressed, working conditions and die-casting raw material components are unified, the formed product has equivalent texture, a regulating valve after the finished product is assembled is self-integrated, the material strength is kept flat, and the service life can be prolonged.

The technical scheme adopted for solving the problems is as follows:

a regulating valve die-casting mould comprises a mould seat, a lower template, an upper template, a guide rod guide sleeve assembly, an upper mould core and a lower mould core, wherein the upper mould core and the lower mould core are matched to form a parting surface, a mould cavity for integrally forming a valve cover, a valve core and a valve seat of a regulating valve is arranged between the upper mould core and the lower mould core, and two groups of mould cavities with symmetrical centers are formed,

the inner side of the cavity of the valve cover is connected with the branch pouring channel, the outer side of the cavity of the valve core is connected with the second overflow groove, the inner side of the cavity of the valve seat is connected with the branch pouring channel, the outer side of the cavity of the valve seat is connected with the third overflow groove, and the volume of the first overflow groove is larger than that of the second overflow groove and smaller than that of the third overflow groove.

Furthermore, the cross-sectional area of the branch runner connected with the cavity of the valve cover is larger than that of the branch runner connected with the cavity of the valve core and smaller than that of the branch runner connected with the cavity of the valve seat.

Furthermore, the center of the parting surface is provided with a main pouring gate and a die-casting gate, the main pouring gate is communicated with the branch pouring gate, and the die-casting gate is vertically upward and is fixedly connected with the upper template in a matching way.

Furthermore, a plurality of ejector pins are arranged in the lower end of the lower die core in the vertical direction, and the ejector pins are aligned to the pushing part of the structure of the regulating valve part to be molded in the die cavity.

Furthermore, cooling water pipelines are arranged in the upper die core and the lower die core, and cooling water is filled into the upper die core and the lower die core through external water inlets and flows out of water outlets.

The utility model has the beneficial effects that:

this governing valve die casting mould sets up the die cavity of three kinds of parts including valve gap, case and disk seat in mould benevolence, a mould many caves die-casting shaping to according to every part volume size, the overflow launder of the not equidimension specification of structural wall thickness independent design, make the molten metal of every independent die cavity fully compress, unified operating mode and die-casting raw materials composition, fashioned product texture is equal, governing valve after the finished product assembly is from integrative, material strength keeps flat, can increase of service life.

Drawings

FIG. 1 is a perspective view of a regulator valve die casting mold of the present embodiment;

FIG. 2 is a perspective view of the regulating valve die-casting mold of the present embodiment with the upper mold plate and the upper mold core removed;

FIG. 3 is a perspective view of the cavity, branch runners and main runner of the present embodiment;

FIG. 4 is a side bottom view of the cavity, branch gate and main gate of this embodiment

FIG. 5 is a schematic structural view of the regulating valve die-casting mold of this embodiment with the upper mold plate, the lower mold plate, the upper mold core and the lower mold core removed;

FIG. 6 is a side bottom view of the valve cover, valve core and valve seat of the present embodiment;

the injection molding machine comprises a die-casting opening 1, an upper die plate 2, a guide rod and guide sleeve assembly 3, a lower die seat 4, an ejector pin push rod 5, an ejector pin push plate 6, a die seat 7, a cooling water pipeline of a lower die core 8, a cooling water pipeline of an upper die core 9, a lower die core 10, a valve core 11, a valve cover 12, a valve seat 13, a main pouring channel 14, a first overflow groove 15, a third overflow groove 16, a branch pouring channel 17, a second overflow groove 18 and an ejector pin 19.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1-6, the present embodiment provides a regulating valve die-casting mold, including a mold base 7, a lower mold plate, an upper mold plate 2, a guide rod guide sleeve assembly 3, an upper mold core and a lower mold core 10, where the upper mold core and the lower mold core 10 form a parting surface after being matched, a cavity formed by integrally forming three parts of a valve cover 12, a valve core 11 and a valve seat 13 of the regulating valve is disposed between the upper mold core and the lower mold core 10, and two sets of mold cavities are formed in a central symmetry manner, a branch runner 17 is connected to an inner side of the cavity of the valve cover 12, a first overflow groove 15 is connected to an outer side of the cavity of the valve core 11, the branch runner 17 is connected to an inner side of the cavity of the valve seat 13, and a third overflow groove 16 is connected to an outer side of the cavity of the valve seat 13, where a volume of the first overflow groove 15 is greater than a volume of the second overflow groove 18 and smaller than a volume of the third overflow groove 16.

The valve seat is large in size, the peripheral wall of the valve seat is thin, the flow rate of a branch pouring channel connected with the valve seat is maximum under the condition that the filling pressure of the valve core and the valve cover is enough, the valve seat is fully filled during high-pressure casting, and the valve seat is well formed.

In a further embodiment, the sectional area of the branch pouring channel 17 connected with the cavity of the valve cover 12 is larger than the sectional area of the branch pouring channel 17 connected with the cavity of the valve core 11 and smaller than the sectional area of the branch pouring channel 17 connected with the cavity of the valve seat 13, so that the valve seat is fully filled and well molded during high-pressure casting.

In a further embodiment, a main pouring channel 14 and a die casting port 1 are arranged at the center of the parting surface, the main pouring channel 14 is communicated with a branch pouring channel 17, the die casting port 1 is vertically upward and is fixedly connected with an upper template 2 in a matching way,

in a further embodiment, a plurality of ejector pins 19 are arranged in the lower end of the lower die core 10 in the vertical direction, and the ejector pins 19 are aligned with the ejection part of the structure of the regulating valve part to be molded in the die cavity.

In a further embodiment, cooling water pipelines are arranged in the upper mold core and the lower mold core 10, and cooling water is filled into the upper mold core and the lower mold core through external water inlets and flows out of water outlets.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes, modifications, substitutions and alterations can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art, the scope of the present invention being defined by the appended claims and their equivalents.

Claims

1. The utility model provides a governing valve die casting die, includes die holder, lower bolster, cope match-plate pattern, guide arm guide pin bushing assembly and goes up mould benevolence and lower mould benevolence, go up the mould benevolence and form the die joint, its characterized in that after the cooperation of lower mould benevolence:

the upper die core and the lower die core are provided with a die cavity for integrally forming three parts of a valve cover, a valve core and a valve seat of the regulating valve, and two groups of die cavities with symmetrical centers are formed,

the valve comprises a valve cover, a valve core, a valve seat, a valve core, a valve cover, a valve core, a valve seat, a valve core, a valve cover and a valve seat, wherein the inner side of a cavity of the valve cover is connected with a branch pouring channel, the outer side of the cavity of the valve core is connected with the branch pouring channel, the outer side of the cavity of the valve core is connected with a third overflow channel, the volume of the first overflow channel is larger than that of the second overflow channel and smaller than that of the third overflow channel, the cross-sectional area of the branch pouring channel connected with the cavity of the valve cover is larger than that of the branch pouring channel connected with the cavity of the valve core, and the cross-sectional area of the branch pouring channel connected with the cavity of the valve seat is smaller than that of the valve seat.

2. The regulator valve die casting mold of claim 1, wherein: the die-casting die is characterized in that a main pouring gate and a die-casting gate are arranged at the center of the parting surface, the main pouring gate is communicated with the sub pouring gate, and the die-casting gate is vertically upward and is fixedly connected with the upper die plate in a matched mode.

3. The regulator valve die casting mold of claim 1, wherein: the lower end of the lower die core is provided with a plurality of ejector pins in the vertical direction, and the ejector pins are aligned to the ejection part of the regulating valve part structure to be molded in the die cavity.

4. The regulator valve die casting mold of claim 1, wherein: and cooling water pipelines are arranged in the upper die core and the lower die core, and cooling water is filled into the upper die core and the lower die core through external water inlets and flows out from water outlets.