CN216801554U - High-precision wall-embedded valve body mold - Google Patents

Abstract

The utility model relates to a high-precision wall-embedded center body die which comprises an upper die and a lower die matched and spliced with the upper die, wherein the splicing surfaces of the upper die and the lower die are respectively provided with a first upper casting area and a first lower casting area matched with the shape of a body, the upper die and the lower die are spliced to form a die cavity, a loose core is connected to the middle position of the upper die, the lower die is provided with a loose core cavity matched with the lower die, the loose core side wall is at least provided with an inward-contracting surface for guiding material to flow and compensate, and a containing space for filling materials is formed between the inward-contracting surface and the loose core cavity when the upper die and the lower die are spliced. The arrangement of the upper and inner shrinkage surfaces of the loose core in the device optimizes the flowing direction of the material, thereby not only avoiding the condition of forging the interlayer, but also correcting the defect position and improving the qualification rate of the product; when two streams of materials flow to the weak position of product structure, hold and let the space and can make the space of letting out hold more materials, prevented the production of intermediate layer, even defect appears, its many cast partial that holds and let the space also can handle through subsequent processing.

Description

High-precision wall-embedded valve body mold

Technical Field

The utility model belongs to the technical field of dies, and particularly relates to a high-precision die for a wall-embedded valve body.

Background

In the existing production and processing process of the valve, the product is processed mostly by adopting a mode of matching and splicing an upper die and a lower die or a left die and a right die. However, in order to meet different requirements and use environments, some valve bodies are complex in structure, irregular in shape and not uniform in material distribution enough, as shown in fig. 1, for example, the manufactured valve body is shown as fig. 2, which is a lower die structure, and the direction of an arrow is a schematic flow diagram of the material in the processing process of an upper die and a lower die, in the existing production, the material is usually placed in the lower die with a core pulling cavity, a cylindrical core pulling is arranged on the upper die, and then the material is extruded and flowed through splicing of the upper die, and due to the product structure, the material at a part is less or the wall thickness is thin, as shown in a part a in fig. 2, when two materials flow to the position, the problem of folding or interlayer forging occurs; the defects can not be repaired in subsequent processing, so that the production cost is increased, and the production efficiency and the qualification rate of the product are lower.

Disclosure of Invention

In order to solve the technical problem, the utility model aims to provide a high-precision wall-embedded valve body die, which is used for guiding the flow direction of a material in the processing and production process by arranging an inner shrinkage surface according to the weak position of the structure of a product, so that the problem that a forged interlayer exists after molding is avoided.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a valve body mould is buried to high accuracy wall, includes mould and the lower mould of cooperation concatenation with it, go up mould and lower mould concatenation face and seted up respectively with body shape assorted casting district and first casting district on first, the concatenation forms the die cavity between it, the speed of production can be accelerated on the one hand to the cooperation of going up mould and lower mould, on the other hand regulates and control more easily to the fashioned structure of material, has improved the qualification rate of product, go up mould middle part position department and be connected with and loose core, the lower mould is equipped with the chamber of loosing core of looks adaptation with it, the lateral wall of loosing core is equipped with the interior face that contracts of one side guide material flow compensation at least, contracts when going up mould and lower mould concatenation in and is formed with the appearance that fills the material between the chamber and lets the space. The setting of the face that contracts in loosing core makes when casting material flows to the position flow direction that the product structure is comparatively weak, the volume of formation lets the space can extrude into casting material and compensate this position, avoids appearing forging interbedded problem.

Preferably, the retraction surface has a smooth plane and is arranged at a weak position of the material structure of the body relatively. In the production process, corresponding inner shrinkage surfaces can be arranged on the loose core aiming at the weak positions of the product, and the smooth surfaces of the inner shrinkage surfaces flow into the containing space along with the guiding material, so that more casting materials can be introduced into the weak positions of the product, and the problem that the product forges the interlayer is corrected.

Preferably, the end part of the outward side of the first upper casting area is further provided with a boss, the boss is provided with a second upper casting area, and an upper parting surface is arranged at the transition part between the inner side of the boss and the first upper casting area.

Preferably, the end part of the outward side of the first lower casting area is provided with a concave table, a second lower casting area matched and spliced with the second upper casting area is arranged on the concave table, a lower parting surface is arranged at the transition part of the inner side of the concave table and the splicing surface of the lower die, and the lower parting surface and the first lower casting area are arranged in a crossed mode.

Go up the die joint and set up the unloading that has made things convenient for forging drawing of patterns in-process product with the die joint down, casting area and the adaptation concatenation in casting area under the second can make the device also can integrated into one piece cast the overhanging part of product in the second simultaneously, have reduced the processing of follow-up procedure.

Preferably, the upper parting surface and the lower parting surface are stepped surfaces which can be matched and spliced with each other, so that subsequent machining is facilitated. The adaptability of the upper parting surface and the lower parting surface can improve the integrity of the formed product, reduce subsequent processing, reduce the workload of subsequent machining due to the stepped shape, and improve the production efficiency by forging and forming the protruded part of the product.

Preferably, the upper die splicing surface between adjacent bosses is provided with a chip storage groove which is convenient for positioning and cutting waste materials. The chip storage groove provides a containing space for product corner waste materials in the processing process, and is convenient to position when the product is trimmed, waste time in the correction process is reduced, and efficiency is improved.

Preferably, the cross-sectional area of the chip groove increases gradually outwards along the longitudinal depth of the chip groove. The chip storage groove is larger in the size of the section of the chip storage groove towards the outside, so that the positioning of a die and a product is facilitated during trimming, and the cutting is facilitated.

Compared with the prior art, the utility model has the beneficial effects that:

the traditional die is only used for producing and processing a special-shaped piece and a non-uniform structure of a material according to the shape of the product, so that the defects such as a forging interlayer and the like easily occur in the production of the special-shaped piece and the non-uniform structure of the material, and the flow direction of the material is optimized due to the arrangement of the core-pulling upper inner shrinkage surface in the device, so that the condition of forging the interlayer is avoided, the defect position is corrected, and the product yield is improved; when two materials flow to the weak position of the product structure, the allowance space can enable the allowance space to contain more materials, so that the interlayer is prevented from being generated, and even if defects occur, the part of the allowance space which is cast more can be processed through subsequent processing.

The stepped upper parting surface and the lower parting surface reduce the processing amount of a rear machine, the blanking of products is convenient to forge and demould, the chip storage grooves are convenient for positioning and aligning the products and the dies when the edges are cut, and the qualification rate of the products is improved and the production efficiency is also improved.

Drawings

FIG. 1 is a schematic view of the direction of material flow during casting of a product;

FIG. 2 is a schematic view showing the direction of material flow in the lower mold during casting of a product;

FIG. 3 is a schematic perspective view of an upper mold;

FIG. 4 is a schematic top view of the upper die structure;

FIG. 5 is a cross-sectional view of the upper die structure;

FIG. 6 is a schematic perspective view of the lower mold;

FIG. 7 is a top view of the lower die structure;

fig. 8 is a cross-sectional view of the lower die structure.

Description of the drawings: 1. an upper die; 2. a lower die; 31. a first upper casting zone; 32. a first lower casting zone; 4. core pulling; 41. a core-pulling cavity; 5. shrinking the surface inwards; 6. a boss; 71. a second upper casting zone; 72. a second lower casting zone; 8. an upper parting surface; 9. a concave platform; 10. a lower parting surface; 11. 12, a chip storage groove and a water inlet; 13. a water outlet; 14. a spool chamber.

Detailed Description

The following describes a detailed embodiment of the present invention with reference to the accompanying drawings.

The high accuracy wall of this embodiment buries valve body mould, is provided with the internal face that contracts on loosing core that the cope match-plate pattern is connected, and the flow direction of guide material compensates comparatively weak position in to the product structure, has improved the qualification rate of product and has reduced the production of defect, introduces in detail below:

in this embodiment, as shown in fig. 2-8, a high-precision wall-embedded valve body mold includes an upper mold 1 and a lower mold 2 assembled therewith, the splicing surfaces of the upper die 1 and the lower die 2 are respectively provided with a first upper casting area 31 and a first lower casting area 32 which are matched with the shape of the body, the first upper casting area 31 and the first lower casting area 32 can be matched with the valve core chamber 14 of the cast valve body together, the upper die 1 and the lower die 2 are matched with each other to form the specific shape of the product, thereby not only facilitating production and processing, but also being more beneficial to regulation and control in production, the product structure shape is precisely processed, the middle position of the upper die 1 is connected with a loose core 4, the lower die 2 is provided with a loose core cavity 41 matched with the loose core, the side wall of the loose core 4 is at least provided with an inner shrinkage surface 5 for guiding the material to flow and compensate, when the upper die 1 and the lower die 2 are spliced, a containing space for filling materials is formed between the inward shrinkage surface 5 and the core-pulling cavity 41.

Be equipped with the interior face 5 that contracts that can lead the material on 4 loosing core and make its flow direction hold and let the space, fill product structure weak position department, can effectively avoid appearing forging defect, in current production and processing, if do not have the setting of interior face 5 that contracts, when processing, weak position department in product structure, the material on its both sides can flow to defect department simultaneously, two strands of materials can be formed with the forging intermediate layer, and the setting of interior face 5 makes the casting material be guided the extrusion flow in hold and let in the space, compensate comparatively weak position, only need in follow-up processing with weak position department extra partly polish off can, avoided the material to form the intermediate layer, the setting position of interior face 5 can do corresponding adjustment according to the actual conditions of product, can set up a plurality ofly simultaneously in order to satisfy the demand.

As shown in fig. 1-4, the retraction surface 5 has a smooth surface and is disposed opposite to the material of the body at the weak point. The inner shrinkage surface 5 is usually arranged at a weak position in the structure of the product according to the characteristics of the structure of the product, namely, the material is distributed at a small amount or the structure is thinner, the flow direction of the material can be guided, and two extruded materials are accommodated in the accommodating space, so that the defect of forging an interlayer can not occur in the product.

As shown in fig. 3, a boss 6 is further disposed at an end portion of the first upper casting region 31 on an outer side, a second upper casting region 71 is disposed on the boss 6, and an upper parting surface 8 is disposed at a joint of the boss 6 and the first upper casting region 31.

The end part of the outward side of the first lower casting area 32 is provided with a concave table 9, the concave table 9 is provided with a second lower casting area 72 which is matched and spliced with the second upper casting area 71, and the joint of the concave table 9 and the second lower casting area 72 is provided with a lower parting surface 10.

For ease of understanding, as illustrated in FIG. 1, wherein the second upper casting area 71 and the second lower casting area 72 cooperate to cast the inlet 12 and outlet 13 of the valve body, the inlet 12 and outlet 13 are product overhangs.

Go up joint 8 and lower joint 10 and all be the ladder face that can the adaptation concatenation of each other, the later stage machine tooling of being convenient for. Go up the die joint 8 and be the ladder shape with lower die joint 10, the work load of reducible back track machining, and both looks adaptations concatenations, wholeness after the shaping of multiplicable product, reduce subsequent procedure, go up setting up of die joint 8 and lower die joint 10 simultaneously and make some overhanging and outstanding positions of product can forge the shaping, if do not have boss 6 and concave station 9's setting, then overhanging outstanding position need forge the shaping in subsequent processing, the process step that has not only increased processing can reduce the efficiency of production, and the wholeness and the sense organ degree of product follow-up processing after-construction are compared in integrated into one piece also relatively poor.

As shown in fig. 3-5, a chip storage groove 11 for conveniently positioning and cutting waste is arranged between adjacent bosses 6. The chip storage groove 11 is formed in the upper die 1, the convenience of trimming and positioning is improved, the trimming die is usually attached to one flat surface during trimming in the actual production process, then the upper die 1 is utilized for punching, products and waste materials are cut, the chip storage groove 11 is formed, and therefore positioning and alignment of the dies and the products are facilitated, and the actual operation of operators is facilitated.

The cross-sectional area of the chip storage groove 11 gradually increases outwards along the longitudinal depth thereof. The outward sectional area of the chip storage groove 11 is continuously enlarged, so that the positioning and the fitting are more convenient when the die and the product are positioned, the applicability is higher, the time spent on the positioning is shortened, and the production and processing efficiency is improved.

The above description of the present invention is intended to be illustrative. Various modifications, additions and substitutions for the specific embodiments described may be made by those skilled in the art without departing from the scope of the utility model as defined in the accompanying claims.

Claims (7)

1. The utility model provides a high accuracy wall buries valve body mould, includes last mould (1) and lower mould (2) of cooperation concatenation with it, its characterized in that, go up mould (1) and lower mould (2) concatenation face respectively offer with body shape assorted casting district (31) and first casting district (32) on first, the concatenation forms the die cavity between it, go up mould (1) middle part position department and be connected with (4) of loosing core, lower mould (2) are equipped with the chamber of loosing core (41) of looks adaptation with it, it is equipped with the face of contracting (5) that one side guide material flow compensation at least to loose core (4) lateral wall, and the face of contracting (5) and the appearance that is formed with the filling material between the chamber of loosing core (41) when going up mould (1) and lower mould (2) concatenation let the space.

2. A high precision wall-embedded valve body mould as claimed in claim 1, wherein said inner shrink surface (5) has a smooth flat surface.

3. A high-precision wall-embedded valve body die as claimed in claim 1, wherein a boss (6) is further provided at the end of the outward side of the first upper casting area (31), a second upper casting area (71) is provided on the boss (6), and an upper parting surface (8) is provided at the transition between the inner side of the boss (6) and the first upper casting area (31).

4. A high-precision wall-embedded valve body mold as claimed in claim 3, wherein a concave table (9) is arranged at the end part of the outward side of the first lower casting area (32), a second lower casting area (72) matched and spliced with the second upper casting area (71) is arranged on the concave table (9), a lower parting surface (10) is arranged at the transition part of the inner side of the concave table (9) and the splicing surface of the lower mold (2), and the lower parting surface (10) and the first lower casting area (32) are arranged in a crossed mode.

5. A high accuracy wall buries valve body mould according to claim 4, characterized in that, upper die joint (8) and lower die joint (10) are the stair surface that can mutually adapt concatenation be convenient for follow-up machining.

6. A high accuracy wall buries valve body mould according to claim 3, characterized in that, be equipped with the chip storage groove (11) that is convenient for location excision waste material on the last mould (1) concatenation face between adjacent boss (6).

7. A high precision wall-mounted valve body die as claimed in claim 6, wherein the cross-sectional area of the chip storage groove (11) is gradually increased along the longitudinal depth outwards.

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