CN115464101B - Reversing valve processing die for improving casting qualification rate - Google Patents

Reversing valve processing die for improving casting qualification rate Download PDF

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Publication number
CN115464101B
CN115464101B CN202210955615.4A CN202210955615A CN115464101B CN 115464101 B CN115464101 B CN 115464101B CN 202210955615 A CN202210955615 A CN 202210955615A CN 115464101 B CN115464101 B CN 115464101B
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China
Prior art keywords
cavity
reversing valve
plate
sealing plate
die
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CN202210955615.4A
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CN115464101A (en
Inventor
顾启响
王德权
林无如
杨锦涛
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Ningbo Xiangshan Jiagang Mould Co ltd
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Ningbo Xiangshan Jiagang Mould Co ltd
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Priority to CN202210955615.4A priority Critical patent/CN115464101B/en
Publication of CN115464101A publication Critical patent/CN115464101A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C9/00Moulds or cores; Moulding processes
    • B22C9/06Permanent moulds for shaped castings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C9/00Moulds or cores; Moulding processes
    • B22C9/08Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C9/00Moulds or cores; Moulding processes
    • B22C9/22Moulds for peculiarly-shaped castings
    • B22C9/24Moulds for peculiarly-shaped castings for hollow articles

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

The application discloses a reversing valve processing die for improving the qualification rate of castings, which comprises the following components: a lower die configured to have a lower cavity for casting the reversing valve; an upper die configured to have an upper die cavity for casting the reversing valve; a plurality of side dies connected to the lower die and the upper die to close the lower die cavity and the upper die cavity; a feed pipe is arranged on the lower die so as to set a feed point in the middle of the reversing valve; the casting manufactured by the method has the advantages of small deformation, few casting defects and high casting qualification rate.

Description

Reversing valve processing die for improving casting qualification rate
Technical Field
The application belongs to the technical field of dies, and particularly relates to a die for machining a reversing valve, which is used for improving the qualification rate of castings.
Background
The reversing valve is a directional control valve with more than two flow forms and more than two oil ports. The first valve is used for realizing communication, cutting-off and reversing of hydraulic oil flow and pressure unloading and sequential action control. The reversing valve is generally formed by casting, the traditional casting process adopts a bottom feeding mode, the feeding capacity of the bottom of the casting is sufficient, the feeding capacity of the top of the casting is not available, the casting has many casting defects, and the product percent of pass is low.
Disclosure of Invention
The summary of the application is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description. The summary of the application is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.
The application provides a reversing valve processing die for improving the qualification rate of castings, which aims to overcome the defects of the prior art.
In order to achieve the above purpose, the present application adopts the following technical scheme: a reversing valve processing mold for improving casting yield, comprising: a lower die configured to have a lower cavity for casting the reversing valve; an upper die configured to have an upper die cavity for casting the reversing valve; a plurality of side dies connected to the lower die and the upper die to close the lower die cavity and the upper die cavity; the lower die is provided with a feed pipe to set the feed point in the middle of the reversing valve.
Further, a material distribution lower cavity is formed in the lower die, a material distribution upper cavity is formed in the upper die, the material inlet pipe is communicated with the material distribution lower cavity, and when the upper die and the upper die are combined, the material distribution lower cavity and the side wall of the material distribution upper cavity are attached to form a material distribution cavity.
Further, the reversing valve processing die for improving the qualification rate of castings further comprises: the sealing plate is used for sealing the material distribution cavity; the driving piece is used for pushing the sealing plate to linearly move in a direction perpendicular to the material distributing cavity; the upper die is provided with a movable cavity for accommodating the sealing plate.
Further, be equipped with the inlet pipe on the last mould, the inlet pipe is located the inlet pipe below, is equipped with first valve in the inlet pipe.
Further, the reversing valve processing die for improving the qualification rate of castings further comprises: the first connecting plate is used for connecting the driving piece and the sealing plate; the sealing plate is connected to the first connecting plate in a sliding manner along the direction parallel to the distributing cavity.
Further, a baffle is arranged on the side wall of the sealing plate, and the baffle is attached to the bottom wall of the material-distributing upper cavity.
Further, be equipped with the sealing block on the closing plate, be equipped with the first movable groove that supplies the sealing block to insert on the closing plate, be equipped with supporting spring in the first movable groove.
Further, the top of the material distributing lower cavity is provided with a first chute, and the top of the sealing block is provided with a second chute.
Further, the reversing valve processing die for improving the qualification rate of castings further comprises: the first push plate is arranged on one side of the sealing plate; the push rod is connected with the first push plate; when the driving piece pushes the push rod to move, the push rod pushes the first push plate to move towards the feeding pipe.
Further, a first guide groove is formed in the top of the feeding pipe.
The application has the advantages that: the reversing valve processing die for improving the casting qualification rate has the advantages of small casting deformation, few casting defects and high casting qualification rate.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application, are incorporated in and constitute a part of this specification. The drawings and their description are illustrative of the application and are not to be construed as unduly limiting the application.
In addition, the same or similar reference numerals denote the same or similar elements throughout the drawings. It should be understood that the figures are schematic and that elements and components are not necessarily drawn to scale.
In the drawings:
FIG. 1 is a schematic diagram of a diverter valve tooling mold for improving casting yield in accordance with one embodiment of the present application;
FIG. 2 is a cross-sectional view of a diverter valve tooling die for improving the yield of castings in the embodiment of FIG. 1;
FIG. 3 is a cross-sectional view of a diverter valve tooling mold for improving casting yield in accordance with another embodiment of the present application;
FIG. 4 is an enlarged view of the first push plate of the diverter valve tooling mold for improving the yield of castings in the embodiment of FIG. 3;
FIG. 5 is an enlarged view of the feed tube of the diverter valve tooling die of the embodiment of FIG. 3 for improving the yield of castings;
FIG. 6 is a cross-sectional view of a diverter valve tooling mold for improving casting yield in accordance with yet another embodiment of the present application;
FIG. 7 is an enlarged view of the first push plate of the diverter valve tooling mold for improving the yield of castings in the embodiment of FIG. 6;
FIG. 8 is an enlarged view of a second slide of the reversing valve processing mold for improving the yield of castings according to the embodiment of FIG. 6.
The meaning of the reference numerals in the figures is as follows:
101. a lower die; 101a, a material distribution cavity; 102. an upper die; 103. a side mold; 104. a feed pipe;
201. a lower die; 202. an upper die; 203. a driving member; 204. a sealing plate; 2041. a support spring; 205. a sealing block; 206. a filler; 207. a material distribution cavity; 208. a baffle; 2081. a second slider; 209. a second chute; 210. a first connection plate; 211. a thermal insulation layer; 212. a feed pipe; 2121. a branch pipe; 214. an air inlet pipe; 2141. a third valve; 215. a mold cavity;
301. a driving member; 302. a first push plate; 3021. a second connecting spring; 3022. a second connection block; 3023. a second connecting plate; 3024. a first connection block; 303. a push rod; 304. a transmission rod; 305. a first connection plate; 306. a first connecting spring; 307. a movable block; 308. a baffle; 3081. a second slider; 309. a first guide groove; 311. a second push plate; 3111. a connecting rod; 3112. a third connecting spring; 3113. a limiting plate; 312. and a second chute.
Detailed Description
Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While certain embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. It should be understood that the drawings and embodiments of the present disclosure are for illustration purposes only and are not intended to limit the scope of the present disclosure.
It should be noted that, for convenience of description, only the portions related to the present application are shown in the drawings. Embodiments of the present disclosure and features of embodiments may be combined with each other without conflict.
It should be noted that the terms "first," "second," and the like in this disclosure are merely used to distinguish between different devices, modules, or units and are not used to define an order or interdependence of functions performed by the devices, modules, or units.
It should be noted that references to "one", "a plurality" and "a plurality" in this disclosure are intended to be illustrative rather than limiting, and those of ordinary skill in the art will appreciate that "one or more" is intended to be understood as "one or more" unless the context clearly indicates otherwise.
The names of messages or information interacted between the various devices in the embodiments of the present disclosure are for illustrative purposes only and are not intended to limit the scope of such messages or information.
The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1 to 2, a reversing valve processing mold for improving the yield of castings comprises a lower mold 101, an upper mold 102 and a plurality of side molds 103.
The reversing valve processed by the application is a three-way valve, so that three side dies 103 are correspondingly arranged, and the three side dies 103 sequentially correspond to three channels of the three-way valve.
The lower die 101 is configured as a lower die cavity with a cast diverter valve; the upper die 102 is configured as an upper die cavity with a cast diverter valve; the side mold 103 is connected to the lower mold 101 and the upper mold 102 to close the lower mold cavity and the upper mold cavity, and when the lower mold 101 and the upper mold 102 are combined, the lower mold cavity and the upper mold cavity are closed to form a finished mold cavity; the lower die 101 is provided with a feeding pipe 104 so as to set a feeding point in the middle of the reversing valve, the lower die 101 is provided with a material distribution lower cavity, the upper die 102 is provided with a material distribution upper cavity, the feeding pipe 104 is communicated with the material distribution lower cavity, when the upper die 102 and the lower die 101 are combined, the material distribution lower cavity and the side wall of the material distribution upper cavity are attached to form a material distribution cavity 101a, the number of the material distribution cavities 101a is three, a plurality of feeding points are formed in the die, and raw materials enter the die cavity from the plurality of feeding points to cast the reversing valve.
The feeding adopts a single feeding pipe and three feeding points, and the feeding points are positioned in the middle of the valve body.
As shown in fig. 3 to 5, as a further preferred scheme, the upper die 202 is provided with a movable cavity communicated with the upper material distributing cavity, the movable cavity is arranged at the top of the upper material distributing cavity, a sealing plate 204 and a driving piece 203 are arranged in the movable cavity, the driving piece 203 is an air cylinder, the driving piece 203 is used for pushing the sealing plate 204 to do linear motion in the direction perpendicular to the upper material distributing cavity 207, the upper material distributing cavity is sealed after the sealing plate 204 enters the upper material distributing cavity, and the movable cavity is arranged at a position close to the die cavity 215 and is at a certain distance from the die cavity 215.
A first valve is arranged in the feed pipe 212 and is an electromagnetic valve for controlling the feed pipe 212 to be opened and closed; a branch pipe 2121 is arranged on the side wall of the feed pipe, a second valve is arranged in the branch pipe, and the second valve is an electromagnetic valve and is used for controlling the on-off of the branch pipe; the upper die is provided with an air inlet pipe 214, a third valve 2141 is arranged in the air inlet pipe 214, and the third valve is an electromagnetic valve and is used for controlling the opening and closing of the air inlet pipe 214.
After raw materials enter from the feeding pipe, the feeding pipe 212 is closed by the first valve, the raw materials entering from the feeding pipe flow into the die cavity along the material distribution cavity 207, and the feeding point is positioned at the middle position of the die cavity, so that the feeding capability of the die cavity is more balanced up and down; after the raw materials are filled in the die cavity, the driving piece 203 pushes the sealing plate 204 to enter the distributing cavity 207, the sealing plate 204 seals the distributing cavity 207, at the moment, part of the distributing cavity 207 is communicated with the die cavity 215 for supplementing the expansion caused by heat and contraction caused by cold of a casting, the first valve opens the feeding pipe 212, the second valve opens the branch pipe, the raw materials at the joint of the feeding pipe and the distributing cavity 207 enter the feeding pipe 212 and are discharged from the branch pipe, the part of raw materials are recycled, the part of raw materials are prevented from being connected to the surface of the casting after being solidified, and the removal efficiency of a casting system is improved; the recycled raw materials can be directly used for casting of the next casting, so that the loss of the raw materials is reduced, and the casting cost is lowered.
The piston rod of the driving member 203 is provided with a first connecting plate 210, the sealing plate 204 is slidably connected to the first connecting plate 210 along a direction parallel to the material distributing cavity 207, a first sliding block is arranged at the top of the sealing plate 204, and the first connecting plate 210 is provided with a first sliding groove matched with the first sliding block to limit the moving direction of the sealing plate 204.
After the raw materials fill the die cavity, the driving piece 203 pushes the sealing plate 204 to descend from the movable cavity, the sealing plate 204 enters the material distribution cavity 207 to partition the material distribution cavity 207, the first valve is opened to open the feeding pipe 212, so that raw materials at the joint of the feeding pipe and the material distribution cavity 207 flow out from the feeding pipe 212, and the raw materials at the joint are recovered; after the raw materials of inlet pipe and branch material chamber 207 junction are retrieved and are accomplished, the back is opened to the third valve and air is introduced from the intake pipe in, the first valve is closed inlet pipe 212, the atmospheric pressure of inlet pipe and branch material chamber 207 junction increases, produce thrust to closing plate 204, the raw materials in the die cavity shrink in the volume when cooling, when the space appears in the die cavity, closing plate 204 moves towards the die cavity direction under the atmospheric pressure effect, closing plate 204 promotes the raw materials in the branch material chamber 207 and continues to move towards the die cavity, the space in the complement die cavity reduces the foundry goods deflection, promote foundry goods qualification rate.
When the sealing plate 204 seals the material distributing cavity 207, a part of space is reserved and communicated with the die cavity so as to supplement the shrinkage in the die cavity and reduce the deformation of the casting; by means of ventilation into the air inlet pipe, the air pressure at one side of the sealing plate 204 is increased, so that the sealing plate 204 generates a trend of moving towards the direction of the die cavity, and raw materials are pushed into the die cavity to supplement the gap in the die cavity; through the setting of closing plate 204 and inlet pipe 212, realize directly retrieving liquid raw materials, the casting system volume on the very big reduction foundry goods simultaneously for casting system's excision is more convenient.
Baffle plates 208 are respectively arranged on the side walls of the two sides of the sealing plate 204, the baffle plates 208 are attached to the top wall of the material distribution upper cavity, a second sliding block 2081 is arranged at the top of the baffle plates 208, a second sliding groove 209 matched with the second sliding block 2081 is arranged at the top of the material distribution upper cavity, and a reset spring is arranged on the second sliding block 2081; the sealing plate 204 is provided with a protruding strip, and the baffle 208 is provided with a third chute corresponding to the protruding strip.
The baffle 208 seals the movable cavity, preventing raw materials from entering the movable cavity; the second sliding block 2081 and the second sliding groove 209 cooperate to guide the baffle 208, so that the baffle 208 is always positioned in the upper material distributing cavity; the convex blocks are matched with the third sliding grooves, so that the sealing plate 204 and the baffle 208 are always connected together, and when the sealing plate 204 enters the movable cavity, the bottom surface of the sealing plate 204 and the bottom surface of the baffle 208 are positioned at the same height, so that raw materials can normally flow through the material distributing cavity 207; the section of the sealing plate 204 is smaller than that of the movable cavity, so that the sealing plate 204 can move in the movable cavity, when the sealing plate 204 stretches into the material distribution cavity 207 to seal the material distribution cavity 207, the air pressure in the material distribution cavity is increased to squeeze the sealing plate 204, and when a gap is generated in the die cavity, the sealing plate 204 drives the baffle 208 to move together, so that the baffle 208 always seals the movable cavity, and the raw materials are prevented from entering the movable cavity to block the movement of the sealing plate 204; after the casting is cooled and formed, air in the air inlet cavity is exhausted, and the return spring pushes the first sliding block to move back, so that the baffle 208 returns to the initial position, and the next use of the sealing plate 204 is facilitated.
The sealing plate 204 is provided with a sealing block 205, the sealing plate 204 is provided with a first movable groove for inserting the sealing block 205, a supporting spring 2041 is arranged in the first movable groove, the top of the sealing block 205 is provided with a slot corresponding to the first movable groove, the first movable groove is filled with a filler 206, the supporting spring 2041 is used for supporting the sealing block 205, and the sealing block 205 is arranged at the bottom of the sealing plate 204; the bottom of the material distributing lower cavity is provided with a first chute, the bottom of the sealing block 205 is provided with a second chute, and the inclination directions and the inclination angles of the first chute and the second chute are consistent.
After the sealing plate 204 enters the material distribution cavity 207, the sealing block 205 is propped against the bottom of the material distribution cavity 207, the first chute is contacted with the second chute, an upward inclined thrust is generated on the sealing block 205 under the cooperation of the first chute and the second chute, the sealing block 205 moves towards the top of the first movable chute, the contact effect of the sealing block 205 and the bottom surface of the material distribution cavity 207 is improved, and the gap between the sealing block 205 and the inner wall of the material distribution cavity 207 is avoided; auxiliary support is provided for the support spring 2041 by the filler 206, so that the stress of the spring is reduced, and the contact effect of the sealing block 205 and the inner wall of the material distribution cavity 207 is improved; under the slot setting, make closing plate 204 stretch into in the feed cavity 207 back whole sealing block 205 all be in feed cavity 207, guarantee the sealing effect of sealing block 205 to feed cavity 207.
The lower die 201 is provided with a cooling cavity, the cooling cavity is arranged above the material distribution lower cavity, a heat insulation layer 211 is arranged in the cooling cavity, the heat insulation layer 211 is arranged in the direction close to the material distribution cavity 207, the temperature in the cooling cavity is prevented from being transmitted into the material distribution cavity 207 under the arrangement of the heat insulation layer 211, the raw materials in the material distribution cavity 207 are always in a liquid state, the raw materials in the material distribution cavity 207 are prevented from being solidified, and the raw materials in the feeding pipe and the material distribution cavity 207 are recovered in a liquid state.
As shown in fig. 6 to 8, as another preferable scheme, a first push plate 302 is arranged on one side of a sealing plate, the first push plate 302 is attached to a sealing block, a first connecting spring 306 is arranged at the top of a first connecting plate 305, a movable block 307 is arranged at the top end of the first connecting spring 306, a driving piece 301 is an electric push rod, a piston rod of the driving piece 301 is arranged at the top of the movable block 307, a cavity is arranged on the sealing block, a first connecting block 3024 is arranged on the first push plate 302, the first connecting block 3024 penetrates through the cavity, a push rod 303 is rotatably connected to the first connecting block 3024, a transmission rod 304 is rotatably connected to the top end of the push rod 303, a first through cavity for the transmission rod 304 to penetrate through is arranged at the top of the sealing block, a second through cavity for the transmission rod 304 to penetrate through is arranged at the top of the sealing plate, the first through cavity is aligned with the second through cavity, and the top end of the transmission rod 304 is connected to the movable block 307; the top of the transmission rod 304 is provided with a third sliding block, the movable block 307 is provided with a fourth sliding groove matched with the third sliding block, so that the sliding connection of the transmission rod 304 and the movable block 307 is realized, and the sealing plate normally moves in the movable cavity; the push rod 303 is in the cavity in an inclined state.
After the raw materials enter the die cavity, the driving piece 301 pushes the movable block 307 to move downwards, the movable block 307 pushes the first connecting plate 305 to move downwards through the first connecting spring 306, the sealing plate descends from the movable cavity to enter the material distributing cavity, the bottom of the sealing block props against the bottom of the material distributing cavity to seal the material distributing cavity, the first valve opens the feeding pipe, and the raw materials at the joint of the feeding pipe and the material distributing cavity flow out of the feeding pipe; the driving piece 301 pushes the movable block 307 to move upwards continuously, the movable block 307 moves upwards relative to the first connecting plate 305, the movable block 307 drives the transmission rod 304 to move upwards together, the transmission rod 304 pushes the push rod 303 to rotate, the push rod 303 rotates around the connecting point to push the first push plate 302 to move into the material distributing cavity, the first push plate 302 cleans raw materials on the inner wall of the material distributing cavity, the raw materials in the material distributing cavity are pushed into the feeding pipe, and residues of the raw materials in the material distributing cavity are reduced, so that the raw materials are recovered.
The top of inlet pipe is equipped with first guide slot 309, and first push pedal 302 top is equipped with the third chute, leaves the space of placing first push pedal 302 between baffle 308 and the closing plate, and first push pedal 302 bottom is equipped with second connecting spring 3021, and second connecting spring 3021 bottom is equipped with second connecting block 3022, is equipped with second connecting plate 3023 on the second connecting block 3022, and second connecting plate 3023 supports on first push pedal 302 lateral wall, utilizes second connecting plate 3023 to seal the space between second connecting block 3022 and the first push pedal 302.
When the movable block 307 moves upwards relative to the first connecting plate 305, the driving rod 304 pushes the push rod 303 to rotate, the push rod 303 pushes the first push plate 302 to move relative to the baffle 308 into the material distribution cavity, under the setting of the third inclined groove, the first push plate 302 automatically moves towards the bottom of the baffle 308, the second connecting spring 3021 is in a compressed state, the second connecting block 3022 is abutted against the bottom of the material distribution cavity, the contact effect between the first push plate 302 and the baffle 308 and the inner wall of the material distribution cavity is enhanced by the elastic force provided by the second connecting spring 3021, when the first push plate 302 moves relative to the baffle 308 on the baffle 308, raw materials on the surface of the baffle 308 are cleaned, the raw materials are pushed down from the baffle 308, the baffle 308 is arranged at one end of the first guide groove 309, the raw materials falling from the baffle 308 directly enter the first guide groove 309, the raw materials remained in the material distribution cavity are discharged from the material storage cavity, and the waste of the raw materials is reduced; through the setting of first guide slot 309, make first push pedal 302 remove less stroke can push out the raw materials of feed distribution intracavity, reduce closing plate thickness to reduce the space that the movable chamber occupy in last mould, make the cooling runner setting on the last mould more even, promote the cooling effect to the foundry goods.
The top of the second sliding chute 312 is provided with a second movable groove, the inner wall of the movable cavity is provided with a third movable groove, the second movable groove is connected with the third movable groove through a connecting cavity, a second push plate 311 is arranged in the third movable groove, the second push plate 311 is provided with a connecting rod 3111, the connecting rod 3111 is arranged in the second movable groove in a penetrating mode through the connecting cavity, and the bottom of the connecting rod 3111 is provided with a limiting plate 3113; the connecting rod 3111 is divided into two sections, the two connecting rods 3111 are connected by a third connecting spring 3112, and the second push plate 311 extends from the third movable slot.
When the first connecting plate 305 moves upwards, the first connecting plate 305 contacts with the top of the second push plate 311, the first connecting plate 305 pushes the second push plate 311 to move upwards, the second push plate 311 drives the limiting plate 3113 to move upwards together, the limiting plate 3113 abuts against the top of the second sliding block 3081, and the baffle 308 is fixed by using the cooperation of the limiting plate 3113 and the second sliding block 3081, so that the first push plate 302 can move relative to the baffle 308 to clean the surface of the baffle 308.
Compression of the third coupling spring 3112 provides elastic support to the limit plate 3113, further enhancing contact effect of the limit plate 3113 with the second slider 3081 to fix the barrier 308 in the current position; the limiting plate 3113 is disposed on top of the entire second chute 312, so that the second slider 3081 can be fixed no matter what position is located in the second chute 312, and raw material residues in the baffle 308 and the material distribution cavity are reduced, and raw materials are fully recovered.
The foregoing description is only of the preferred embodiments of the present disclosure and description of the principles of the technology being employed. It will be appreciated by those skilled in the art that the scope of the application in the embodiments of the present disclosure is not limited to the specific combination of the above technical features, but encompasses other technical features formed by any combination of the above technical features or their equivalents without departing from the spirit of the application. Such as the above-described features, are mutually substituted with (but not limited to) the features having similar functions disclosed in the embodiments of the present disclosure.

Claims (6)

1. A reversing valve processing mold for improving casting yield, comprising:
a lower die configured to have a lower cavity for casting the reversing valve;
an upper die configured to have an upper die cavity for casting the reversing valve;
the method is characterized in that:
a plurality of side molds connected to the lower mold and the upper mold to close the lower mold cavity and the upper mold cavity;
a feed pipe is arranged on the lower die so as to set a feed point in the middle of the reversing valve;
the lower die is provided with a material distribution lower cavity, the upper die is provided with a material distribution upper cavity, the feeding pipe is communicated with the material distribution lower cavity, and when the upper die and the upper die are combined, the material distribution lower cavity and the side wall of the material distribution upper cavity are attached to form a material distribution cavity;
the sealing plate is used for sealing the material distributing cavity;
the driving piece is used for pushing the sealing plate to linearly move in the direction perpendicular to the material distributing cavity;
the upper die is provided with a movable cavity for accommodating the sealing plate;
a branch pipe is arranged on the side wall of the feeding pipe, a first valve is arranged in the feeding pipe, and a second valve is arranged in the branch pipe;
a first connection plate for connecting the driving member and the sealing plate;
the sealing plate is connected to the first connecting plate in a sliding manner along the direction parallel to the distributing cavity.
2. The reversing valve processing mold for improving the yield of castings according to claim 1, wherein: the baffle is arranged on the side wall of the sealing plate, and the baffle is attached to the bottom wall of the material distribution upper cavity.
3. The reversing valve processing mold for improving the yield of castings according to claim 1, wherein: the sealing plate is provided with a sealing block, the sealing plate is provided with a first movable groove for inserting the sealing block, and a supporting spring is arranged in the first movable groove.
4. The reversing valve processing mold for improving the yield of castings according to claim 3, wherein: the top of the material distributing lower cavity is provided with a first chute, and the top of the sealing block is provided with a second chute.
5. The reversing valve processing mold for improving the yield of castings according to claim 1, wherein: further comprises:
the first push plate is arranged on one side of the sealing plate;
the push rod is connected with the first push plate;
when the driving piece pushes the push rod to move, the push rod pushes the first push plate to move towards the feeding pipe.
6. The reversing valve processing mold for improving the yield of castings according to claim 1, wherein: the top of inlet pipe is equipped with first guide slot.
CN202210955615.4A 2022-08-10 2022-08-10 Reversing valve processing die for improving casting qualification rate Active CN115464101B (en)

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CN202210955615.4A CN115464101B (en) 2022-08-10 2022-08-10 Reversing valve processing die for improving casting qualification rate

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Application Number Priority Date Filing Date Title
CN202210955615.4A CN115464101B (en) 2022-08-10 2022-08-10 Reversing valve processing die for improving casting qualification rate

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CN115464101B true CN115464101B (en) 2023-08-22

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CN204108230U (en) * 2014-09-30 2015-01-21 宁波双海机械制造有限公司 A kind of casting mould of automobile-used three-way connection
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