CN112222386A - Automobile engine casting mould liftout mechanism - Google Patents

Automobile engine casting mould liftout mechanism Download PDF

Info

Publication number
CN112222386A
CN112222386A CN202011132086.5A CN202011132086A CN112222386A CN 112222386 A CN112222386 A CN 112222386A CN 202011132086 A CN202011132086 A CN 202011132086A CN 112222386 A CN112222386 A CN 112222386A
Authority
CN
China
Prior art keywords
plate
groove
casting
automobile engine
fixed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN202011132086.5A
Other languages
Chinese (zh)
Inventor
梅国健
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN202011132086.5A priority Critical patent/CN112222386A/en
Publication of CN112222386A publication Critical patent/CN112222386A/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D29/00Removing castings from moulds, not restricted to casting processes covered by a single main group; Removing cores; Handling ingots
    • B22D29/04Handling or stripping castings or ingots
    • B22D29/06Strippers actuated by fluid pressure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D29/00Removing castings from moulds, not restricted to casting processes covered by a single main group; Removing cores; Handling ingots
    • B22D29/02Vibratory apparatus specially designed for shaking out flasks

Abstract

The invention relates to the technical field of casting molds, in particular to an automobile engine casting mold ejection mechanism which comprises a mold, wherein a casting groove is formed in the bottom surface of the mold, a sealing plate is inserted into an opening of the casting groove and fixed on the surface of a bottom plate, a mounting groove is formed in the bottom surface of the mold, an electric hydraulic cylinder is arranged in the mounting groove, and a piston rod of the electric hydraulic cylinder is fixed on the surface of the bottom plate; the beneficial effects are that: the automobile engine casting mold ejection mechanism provided by the invention is additionally provided with two groups of baffle rings in the casting groove, when materials are poured into the casting groove, the interference compaction plate is positioned at the upper parts of the two baffle rings, after the pouring is finished, the interference compaction plate is pushed down to be inserted between the two baffle rings, at the moment, liquid exceeding the bottom surfaces of the two baffle rings is extruded out, the extruded liquid is injected into the material collecting pipe through the overflow hole and the insertion pipe, and the liquid materials collected in the material collecting pipe are injected into the external material barrel through the pump body, so that the recovery of redundant materials is realized, and the qualified molding of a poured casting is ensured.

Description

Automobile engine casting mould liftout mechanism
Technical Field
The invention relates to the technical field of casting molds, in particular to a material ejecting mechanism of an automobile engine casting mold.
Background
The automobile engine is used as a core component of an automobile, and the processing quality of the product influences the service performance of the automobile. As an important part of an automobile engine, namely an automobile engine frame, blank pieces of the automobile engine are all cast.
In the prior art, in the casting process of a frame, excessive casting liquid is injected to cause unqualified frame formed by casting, and a traditional casting mold lacks a flattening and dredging structure for redundant casting liquid; after the machine frame is formed, the sealing cover needs to be opened firstly, and then the casting is ejected out by using ejection equipment, so that the step-by-step realization is realized, and the improvement of the production efficiency is not facilitated; and the cast firmware is closely attached to the inner wall of the casting groove and is not easy to fall off or scrape the wall.
Disclosure of Invention
The invention aims to provide an ejection mechanism of an automobile engine casting mold, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: an automobile engine casting mould ejection mechanism comprises a mould, wherein a casting groove is formed in the bottom surface of the mould, a sealing plate is inserted into an opening of the casting groove, the sealing plate is fixed on the surface of a bottom plate, a mounting groove is formed in the bottom surface of the mould, an electric hydraulic cylinder is arranged in the mounting groove, a piston rod of the electric hydraulic cylinder is fixed on the surface of the bottom plate, a limiting ring is sleeved outside the piston rod of the electric hydraulic cylinder and is inserted at the bottom end of the electric hydraulic cylinder, a material collecting groove is formed in the mould, a pouring pipe is inserted into the top surface of the mould, a material distributing port is formed in the surface of the material collecting groove, a baffle ring is arranged in the casting groove, an interference compacting plate is arranged in the casting groove, an overflow hole is formed in the surface of the casting groove, an insertion pipe is inserted into the overflow hole, a material collecting, the top surface of the interference compaction plate is provided with a push rod, the top end of the push rod is fixed on the bottom surface of the connecting plate, the surface of the connecting plate is inserted with a guide rod, the guide rod is fixed on the top surface of the die, the bottom surface of the connecting plate is provided with a lifting plate, the surface of the lifting plate is inserted with a traction rod, one end of the traction rod is fixed on the surface of the pulling plate, the surface of the pulling plate is provided with a handle, the outer side of the traction rod is sleeved with a rubber ring, the other end of the traction rod is fixed on the surface of the telescopic column, the surface of the telescopic column is provided with a pulley, the surface of the telescopic column is sleeved with a spring, the spring is fixed between an end plate body of the telescopic column and a sleeve, the sleeve is sleeved on the outer side of the telescopic column, the sleeve is fixed, the top surface of mould is provided with the mounting bracket.
Preferably, the casting groove is annular cylinder structure, and the shrouding is annular platelike structure, and the bottom plate is square platelike structure, and the mounting groove is provided with two sets ofly, and two sets of mounting grooves are about the top surface central symmetry distribution of mould.
Preferably, the mounting groove is "T" font cylinder structure, and the spacing ring is ring annular structure, and the surface of spacing ring is provided with the screw, and the spiro union is on the ladder face of mounting groove behind the screw runs through the spacing ring.
Preferably, the material collecting groove is of an annular cylinder structure, the material dispersing opening is of a square cylinder structure, the baffle rings are of an annular plate-shaped structure, the two baffle rings are arranged, the interference compacting plate is located between the two baffle rings, the overflow hole is of a circular hole-shaped structure, and the material collecting pipe is of a circular ring structure with an annular section.
Preferably, the push rods are of circular cylinder structures, the push rods are provided with two groups, the two groups of push rods are symmetrically distributed about an inner ring opening of the interference compacting plate, the connecting plate is of a square plate-shaped structure, the guide rod is of a T-shaped cylinder structure, and the lifting plate is of a square plate-shaped structure.
Preferably, the traction rods are arranged in a plurality of rows, the traction rods are distributed along the lifting plate in an up-down arrangement mode, the pulling plate is of a square plate structure, the rubber ring is located between the pulling plate and the lifting plate, the telescopic column is of a T-shaped column structure, the two groups of pulleys are arranged, and the two groups of pulleys are distributed in an up-down symmetrical mode relative to the telescopic column.
Preferably, the side groove is the rectangular cylinder structure, and the side groove is provided with two, and two side grooves are about mould symmetric distribution, and the fixed block is right trapezoid cylinder structure, and the fixed block is provided with a plurality ofly, and a plurality of fixed blocks are arranged from top to bottom and distribute, slider and fixed block one-to-one.
Compared with the prior art, the invention has the beneficial effects that: the invention has reasonable structure and strong functionality, and has the following advantages:
1. the automobile engine casting die ejection mechanism is characterized in that two groups of baffle rings are additionally arranged in a casting groove, when materials are poured into the casting groove, an interference compacting plate is positioned at the upper parts of the two baffle rings, after the pouring is finished, the interference compacting plate is pushed down to be inserted between the two baffle rings, at the moment, liquid exceeding the bottom surfaces of the two baffle rings is extruded out, the extruded liquid is injected into a material collecting pipe through an overflow hole and an insertion pipe, and the liquid materials collected in the material collecting pipe are injected into an external material barrel through a pump body, so that the recovery of redundant materials is realized, and the qualified molding of a poured casting is ensured;
2. the lifting plate is additionally arranged on the surface of the bottom plate of the automobile engine casting mold ejection mechanism, the lifting plate is connected with the push rod through the connecting plate, the sealing plate is separated from the casting groove in the process that the electric hydraulic cylinder pushes the bottom plate to descend, meanwhile, the supporting rod drives the interference compacting plate to descend, the casting is pushed out from the casting groove at the moment, the casting is lapped on the sealing plate to avoid falling, the casting can be pushed out between the bottom plate and the mold until the top end of the casting is separated from the casting groove, and therefore the sealing plate is opened and the casting is pushed out simultaneously;
3. according to the automobile engine casting die ejecting mechanism, the traction rod is additionally arranged on the surface of the lifting plate, the telescopic column connected with the end of the traction rod elastically stretches inside the sleeve, when the sliding block at the end of the telescopic column is in contact with the fixed block, the telescopic column moves towards the inside of the sleeve, the sliding block rebounds and knocks the side groove after passing over the fixed block, and therefore the multiple groups of sliding blocks simultaneously knock the side groove to play a role in shaking off a casting inside the casting groove, namely, shaking off is carried out in the material pushing process.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the connection structure of the telescopic column and the sleeve of the present invention;
FIG. 3 is an enlarged view of the structure at A in FIG. 1;
FIG. 4 is an enlarged view of the structure at B in FIG. 1;
fig. 5 is an enlarged schematic view of the structure at C in fig. 1.
In the figure: the device comprises a mold 1, a casting groove 2, a sealing plate 3, a bottom plate 4, a mounting groove 5, an electric hydraulic cylinder 6, a limiting ring 7, a material collecting groove 8, a pouring pipe 9, a material dispersing opening 10, a baffle ring 11, an interference compacting plate 12, an overflow hole 13, an insertion pipe 14, a material collecting pipe 15, a pump body 16, a push rod 17, a connecting plate 18, a guide rod 19, a lifting plate 20, a traction rod 21, a pulling plate 22, a handle 23, a rubber ring 24, a telescopic column 25, a pulley 26, a spring 27, a sleeve 28, a sliding block 29, a fixing block 30 and a mounting frame 31.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 5, the present invention provides a technical solution: an automobile engine casting mould liftout mechanism comprises a mould 1, a casting groove 2 is arranged on the bottom surface of the mould 1, a sealing plate 3 is inserted into an opening of the casting groove 2, the sealing plate 3 is welded on the surface of a bottom plate 4, a mounting groove 5 is arranged on the bottom surface of the mould 1, the casting groove 2 is of an annular cylinder structure, the sealing plate 3 is of an annular plate structure, the bottom plate 4 is of a square plate structure, two groups of mounting grooves 5 are arranged, the two groups of mounting grooves 5 are symmetrically distributed about the center of the top surface of the mould 1, an electric hydraulic cylinder 6 is arranged inside the mounting groove 5, a piston rod of the electric hydraulic cylinder 6 is welded on the surface of the bottom plate 4, a limiting ring 7 is sleeved outside a piston rod of the electric hydraulic cylinder 6, the limiting ring 7 is inserted into the bottom end of the electric hydraulic cylinder 6, the mounting groove, the screw penetrates through the limiting ring 7 and then is in threaded connection with the step surface of the mounting groove 5;
a material collecting groove 8 is formed in the die 1, a pouring pipe 9 is inserted into the top surface of the die 1, a material dispersing opening 10 is formed in the surface of the material collecting groove 8, a baffle ring 11 is arranged in the casting groove 2, an interference compacting plate 12 is arranged in the casting groove 2, overflow holes 13 are formed in the surface of the casting groove 2, insertion pipes 14 are inserted into the overflow holes 13, a material collecting pipe 15 is embedded and sleeved on the surface of the die 1, the material collecting groove 8 is of an annular cylinder structure, the material dispersing opening 10 is of a square cylinder structure, the baffle rings 11 are of an annular plate structure, the two baffle rings 11 are arranged, the interference compacting plate 12 is positioned between the two baffle rings 11, the overflow holes 13 are of a circular hole structure, the material collecting pipe 15 is of a circular ring structure with an annular section, and a pump body 16 is arranged on;
the top surface of the interference compaction plate 12 is provided with push rods 17, the top ends of the push rods 17 are fixed on the bottom surface of a connecting plate 18, guide rods 19 are inserted in the surface of the connecting plate 18, the guide rods 19 are fixed on the top surface of the die 1, the bottom surface of the connecting plate 18 is provided with a lifting plate 20, the push rods 17 are of a circular column structure, two groups of push rods 17 are arranged, the two groups of push rods 17 are symmetrically distributed on the inner ring opening of the interference compaction plate 12, the connecting plate 18 is of a square plate structure, the guide rods 19 are of a T-shaped column structure, the lifting plate 20 is of a square plate structure, the surface of the lifting plate 20 is inserted with a traction rod 21, one end of the traction rod 21 is fixed on the surface of a pulling plate 22, the surface of the pulling plate 22 is provided with a handle 23, the outer side of the traction rod 21 is sleeved with a rubber ring 24, the plurality of traction rods 21 are distributed along the lifting plate 20 in an up-and-down arrangement mode, the pulling plate 22 is of a square plate-shaped structure, the rubber ring 24 is positioned between the pulling plate 22 and the lifting plate 20, the telescopic column 25 is of a T-shaped cylinder structure, two groups of pulleys 26 are arranged, the two groups of pulleys 26 are symmetrically distributed up and down relative to the telescopic column 25, the surface of the telescopic column 25 is sleeved with a spring 27, the spring 27 is fixed between an end plate body of the telescopic column 25 and a sleeve 28, the sleeve 28 is sleeved on the outer side of the telescopic column 25 and fixed on the surface of the lifting plate 20, the end of the telescopic column 25 is provided with a sliding block 29, the surface of the die 1 is provided with side grooves, the surface of each side groove is provided with a fixed block 30, the top surface of the die 1 is provided with a mounting frame 31, the side grooves are of a rectangular cylinder structure, the side grooves are provided with two, the fixed blocks 30 are distributed in an up-down arrangement, and the sliding blocks 29 correspond to the fixed blocks 30 one by one.
The working principle is as follows: when the device is in actual use, materials are poured into the material collecting groove 8 through the pouring pipe 9, the materials are poured into the casting groove 2 along the material dispersing port 10, the sealing plate 3 seals the bottom end of the casting groove 2, after pouring is completed, the electric hydraulic cylinder 6 is started to push the bottom plate 4 downwards until the interference compacting plate 12 is inserted between the two retaining rings 11, the sealing plate 3 is still sealed at the bottom end of the casting groove 2 at the moment, namely the height of the sealing plate 3 is greater than the descending height of the interference compacting plate 12, at the moment, the materials exceeding the bottom surfaces of the retaining rings 11 are extruded out, the extruded materials are poured into the material collecting pipe 15 along the overflow hole 13 and the insertion pipe 14, the pump body 16 is started to extract the materials collected in the material collecting pipe 15 and pour the materials into the external material cylinder, after a casting in the casting groove 2 is molded, the electric hydraulic cylinder 6 is started to push the bottom plate 4 downwards, at the moment, the lifting plate 20 pulls the, that is, the interference compacting plate 12 pushes the casting downwards, and the inclined plane of the sliding block 29 is extruded by the inclined plane of the fixed block 30, so that the telescopic column 25 moves towards the inside of the sleeve 28, the spring 27 at this moment is tensioned, after the sliding block 29 crosses the fixed block 30, the spring 27 pulls the telescopic column 25 to rebound, the sliding block 29 knocks the side groove at this moment, so that the side groove is knocked by multiple groups of sliding blocks 29 at the same time, the casting is shaken down, namely, in the process of opening the sealing plate, the pushing and shaking down work of the material is realized at the same time, the casting is jacked by the sealing plate 3, and after the casting is separated from the casting groove 2, the casting is pushed out from between.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides an automobile engine casting mould liftout mechanism, includes mould (1), its characterized in that: the bottom surface of the die (1) is provided with a casting groove (2), a sealing plate (3) is inserted into an opening of the casting groove (2), the sealing plate (3) is fixed on the surface of the bottom plate (4), the bottom surface of the die (1) is provided with a mounting groove (5), an electric hydraulic cylinder (6) is arranged inside the mounting groove (5), a piston rod of the electric hydraulic cylinder (6) is fixed on the surface of the bottom plate (4), a limiting ring (7) is sleeved outside the piston rod of the electric hydraulic cylinder (6), the limiting ring (7) is inserted at the bottom end of the electric hydraulic cylinder (6), a material collecting groove (8) is arranged inside the die (1), a pouring pipe (9) is inserted into the top surface of the die (1), a material dispersing opening (10) is arranged on the surface of the material collecting groove (8), a retaining ring (11) is arranged inside the casting groove (2), and an interference compacting plate (12) is arranged, an overflow hole (13) is formed in the surface of the casting groove (2), an insertion pipe (14) is inserted into the overflow hole (13), a material collecting pipe (15) is embedded and sleeved on the surface of the die (1), a pump body (16) is arranged on the top surface of the die (1), a push rod (17) is arranged on the top surface of the interference compacting plate (12), the top end of the push rod (17) is fixed to the bottom surface of the connecting plate (18), a guide rod (19) is inserted and sleeved on the surface of the connecting plate (18), the guide rod (19) is fixed to the top surface of the die (1), a lifting plate (20) is arranged on the bottom surface of the connecting plate (18), a traction rod (21) is inserted and sleeved on the surface of the lifting plate (20), one end of the traction rod (21) is fixed to the surface of the pulling plate (22), a handle (23) is arranged on the surface of the pulling plate (22, the surface at flexible post (25) is fixed to the other end of traction lever (21), the surface of flexible post (25) is provided with pulley (26), and the surface cover of flexible post (25) is equipped with spring (27), spring (27) are fixed between the tip plate body of flexible post (25) and sleeve (28), sleeve (28) cover is established in the outside of flexible post (25), and sleeve (28) fix on the surface of lifter plate (20), and the tip of flexible post (25) is provided with slider (29), and the limit groove has been seted up on the surface of mould (1), the surface in limit groove is provided with fixed block (30), and the top surface of mould (1) is provided with mounting bracket (31).
2. The automobile engine casting mold ejection mechanism of claim 1, characterized in that: casting groove (2) are annular cylinder structure, and shrouding (3) are annular platelike structure, and bottom plate (4) are square platelike structure, and mounting groove (5) are provided with two sets ofly, and two sets of mounting groove (5) are about the top surface central symmetry distribution of mould (1).
3. The automobile engine casting mold ejection mechanism of claim 1, characterized in that: mounting groove (5) are "T" font cylinder structure, and spacing ring (7) are the loop configuration, and the surface of spacing ring (7) is provided with the screw, and the spiro union is on the ladder face of mounting groove (5) behind the screw runs through spacing ring (7).
4. The automobile engine casting mold ejection mechanism of claim 1, characterized in that: the material collecting groove (8) is of an annular cylinder structure, the material dispersing opening (10) is of a square cylinder structure, the two blocking rings (11) are of annular plate-shaped structures, the two blocking rings (11) are arranged, the interference compacting plate (12) is located between the two blocking rings (11), the overflow hole (13) is of a circular hole-shaped structure, and the material collecting pipe (15) is of a circular ring structure with an annular cross section.
5. The automobile engine casting mold ejection mechanism of claim 1, characterized in that: the push rods (17) are of circular cylinder structures, the push rods (17) are arranged in two groups, the two groups of push rods (17) are symmetrically distributed about an inner annular opening of the interference compacting plate (12), the connecting plate (18) is of a square plate-shaped structure, the guide rod (19) is of a T-shaped cylinder structure, and the lifting plate (20) is of a square plate-shaped structure.
6. The automobile engine casting mold ejection mechanism of claim 1, characterized in that: the traction rods (21) are arranged in a plurality of numbers, the traction rods (21) are distributed in an up-down arrangement mode along the lifting plate (20), the pulling plate (22) is in a square plate-shaped structure, the rubber ring (24) is located between the pulling plate (22) and the lifting plate (20), the telescopic column (25) is in a T-shaped column structure, the pulleys (26) are arranged in two groups, and the two groups of pulleys (26) are symmetrically distributed up and down relative to the telescopic column (25).
7. The automobile engine casting mold ejection mechanism of claim 1, characterized in that: the side groove is the rectangular cylinder structure, and the side groove is provided with two, and two side grooves are about mould (1) symmetric distribution, and fixed block (30) are right trapezoid cylinder structure, and fixed block (30) are provided with a plurality ofly, and a plurality of fixed block (30) are upper and lower row's distribution, slider (29) and fixed block (30) one-to-one.
CN202011132086.5A 2020-10-21 2020-10-21 Automobile engine casting mould liftout mechanism Withdrawn CN112222386A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011132086.5A CN112222386A (en) 2020-10-21 2020-10-21 Automobile engine casting mould liftout mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011132086.5A CN112222386A (en) 2020-10-21 2020-10-21 Automobile engine casting mould liftout mechanism

Publications (1)

Publication Number Publication Date
CN112222386A true CN112222386A (en) 2021-01-15

Family

ID=74118264

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011132086.5A Withdrawn CN112222386A (en) 2020-10-21 2020-10-21 Automobile engine casting mould liftout mechanism

Country Status (1)

Country Link
CN (1) CN112222386A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113185094A (en) * 2021-04-27 2021-07-30 赵宇琪 Environment-friendly glass bottle blowing equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113185094A (en) * 2021-04-27 2021-07-30 赵宇琪 Environment-friendly glass bottle blowing equipment

Similar Documents

Publication Publication Date Title
CN109500358B (en) Resin sand casting equipment and casting process
CN206264433U (en) A kind of casting die backform stamping machine
CN112222386A (en) Automobile engine casting mould liftout mechanism
CN203253897U (en) Vertical die-casting machine
CN219153662U (en) Guiding device for processing injection mold
CN205165746U (en) Ejecting casting mold structure after loosing core earlier
CN215472761U (en) Car door plant injection mold demoulding structure
CN214339718U (en) Equipment capable of automatically forming cake
CN215589479U (en) Blind road brick production is with mould of being convenient for drawing of patterns
CN213888070U (en) Horizontal bilateral compaction molding machine
CN211542014U (en) Production mould of draw-bar box panel
CN212976660U (en) Horizontal die casting machine that can incline
CN110789066B (en) Six-way pipe fitting injection mold
CN207952606U (en) A kind of logical machine crankshaft casting forging mould
CN208375743U (en) A kind of mold of manufacture type vacuum injecting and forming machine material mouth blocking
CN210305707U (en) Precision casting mould
CN112011409A (en) Extrusion type casting die convenient to disassemble
CN217044530U (en) Mould for manufacturing aluminum bar by purified alloy molten aluminum
CN216575494U (en) Casting device is used in tombarthite alloy production
CN217192527U (en) Molten steel pouring rapid demoulding device
CN210939799U (en) Crucible forming die
CN210362124U (en) Plastic bowl one-time forming equipment
CN210851153U (en) Runner structure of injection mold
CN218948318U (en) High-pressure-bearing PVC plastic ball valve die
CN215279787U (en) Be used for valve casting integration forming device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WW01 Invention patent application withdrawn after publication
WW01 Invention patent application withdrawn after publication

Application publication date: 20210115