CN117102436B - Die for producing hydraulic valve body and processing method thereof - Google Patents
Die for producing hydraulic valve body and processing method thereof Download PDFInfo
- Publication number
- CN117102436B CN117102436B CN202311359868.6A CN202311359868A CN117102436B CN 117102436 B CN117102436 B CN 117102436B CN 202311359868 A CN202311359868 A CN 202311359868A CN 117102436 B CN117102436 B CN 117102436B
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- 238000003672 processing method Methods 0.000 title abstract description 8
- 238000005266 casting Methods 0.000 claims abstract description 144
- 239000007788 liquid Substances 0.000 claims abstract description 43
- 238000007789 sealing Methods 0.000 claims description 25
- 238000001816 cooling Methods 0.000 claims description 19
- 238000003825 pressing Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000000498 cooling water Substances 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 4
- 230000000630 rising effect Effects 0.000 claims description 3
- 230000001502 supplementing effect Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 8
- 230000035515 penetration Effects 0.000 claims 4
- 210000002421 cell wall Anatomy 0.000 claims 1
- 238000010030 laminating Methods 0.000 claims 1
- 230000006835 compression Effects 0.000 abstract description 16
- 238000007906 compression Methods 0.000 abstract description 16
- 239000000243 solution Substances 0.000 description 4
- 238000001746 injection moulding Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
- B22C9/082—Sprues, pouring cups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
- B22C9/24—Moulds for peculiarly-shaped castings for hollow articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/08—Shaking, vibrating, or turning of moulds
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention belongs to the technical field of casting molds, and particularly discloses a mold for producing a hydraulic valve body and a processing method thereof. According to the invention, the casting assembly is arranged, when casting liquid enters the casting pipes through the casting groove, the motor can drive the plurality of casting pipes to rotate around the fixed rods along with the starting of the motor, so that the plurality of casting pipes can be uniformly cast, and in the casting process, the bottom of the casting pipe is close to the liquid level of the casting liquid in the cavity, so that the casting liquid is prevented from splashing when entering the cavity, the possibility that air enters the casting liquid is further reduced, and the compression ring can be always pressed at the top of the casting liquid in the cavity, so that the air is prevented from entering the casting liquid to a certain extent, and the casting quality of a subsequent die is improved.
Description
Technical Field
The invention belongs to the technical field of casting molds, and particularly relates to a mold for producing a hydraulic valve body and a processing method thereof.
Background
The mould is used for producing various moulds and tools of the needed products by injection molding, blow molding, extrusion, die casting or forging, smelting, stamping and other methods in industry. The die has a specific contour or cavity shape, and the application of the cavity shape can enable the blank to obtain a corresponding three-dimensional shape. The mold generally comprises a movable mold and a fixed mold (or a male mold and a female mold), which can be separated and combined. When the blank is closed, the blank is injected into the die cavity to form, and when the blank is opened, the workpiece is taken out. Molds are widely used in the injection molding industry, for example, valve bodies for hydraulic valves are also injection molded using molds.
However, the existing hydraulic valve die lacks a discharging mechanism, so that the die is not easy to take out from a die cavity after injection molding is finished, in order to solve the problem, a die for producing a hydraulic valve body is proposed in Chinese patent with publication number CN215199561U, and the die comprises a lower die block and an upper die block, wherein a casting cavity and a sealing groove are formed in the middle of the lower die block, and a positioning hole is formed in the outer side of the lower die block. Although this patent solves the problem of difficult removal of the mold to some extent, the following disadvantages still exist in practical use:
during initial casting, as the bottom end of the liquid inlet pipe is far away from the top of the backing plate, when casting liquid is impacted on the top of the backing plate from top to bottom, the casting liquid can generate sputtering, and as the casting liquid is sputtered, the contact area between the casting liquid and air in the casting cavity is increased, so that the air in the casting cavity is easy to enter the casting liquid.
Therefore, it is necessary to invent a die for producing a hydraulic valve body and a processing method thereof to solve the above-mentioned problems.
Disclosure of Invention
In order to solve the problems, the invention provides a die for producing a hydraulic valve body and a processing method thereof, so as to solve the problems in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the die for producing the hydraulic valve body comprises a lower die, a cylindrical cavity is formed in the top of the lower die, an upper die is arranged in the top of the lower die, a cylindrical inner die is connected to the bottom of the upper die in a rotating mode, a casting assembly is arranged between the outer side of the inner die and the cavity, a base plate matched with the diameter of the cavity is arranged at the bottom of the inner die, a sleeve is vertically connected to the center of the top of the base plate, the top of the sleeve is inserted in the upper die in a sliding penetrating mode, the bottom of the sleeve is communicated with the bottom of the base plate, a plurality of positioning rods are vertically and fixedly connected to the top of the base plate, and the positioning rods are inserted in the bottom of the inner die in a sliding penetrating mode;
the sleeve is internally and slidably inserted with a fixing rod, the bottom of the fixing rod is vertically and fixedly connected with the inner wall of the bottom of the cavity, a fixing sleeve is sleeved at the position of the fixing rod close to the top end through threads, the inner diameter of the fixing sleeve is equal to the outer diameter of the sleeve, and the inside height of fixed cover equals the distance of sleeve pipe top to last mould top, the bottom rotation of fixed cover is connected with the swivel, the motor is installed to one side of bed die, and has cup jointed the gear on the output shaft of motor, the bottom edge position annular distribution of going up the mould has tooth, and tooth and gear engagement.
Further, the casting subassembly includes the clamping ring, the width of clamping ring equals the distance between the mould outside to the die cavity inner wall, the top of clamping ring is connected with a plurality of casting pipes perpendicularly, and the bottom of casting pipe and the bottom intercommunication of clamping ring, the top slip of casting pipe runs through and pegs graft on last mould, a plurality of fixedly connected with same go-between the top of casting pipe, and the top of casting pipe communicates with the top of go-between, two blast pipes of perpendicular fixedly connected with in addition in the top of clamping ring, the bottom of blast pipe communicates with the bottom of clamping ring, the top slip of blast pipe runs through and pegs graft on last mould, the top of go-between is equipped with annular casting groove, the bottom of casting groove runs through and pegs graft there is a plurality of connecting pipes, a plurality of the connecting pipe peg graft in a plurality of casting pipes one by one, the inboard of go-between is equipped with the lifting element.
Further, the lifting assembly comprises a screw rod, the top at the dead lever is perpendicular fixed connection to the screw rod, and the diameter of screw rod is less than the diameter of dead lever, the movable sleeve has been cup jointed to the screw rod, the outside annular of movable sleeve is provided with a plurality of pull rods, the one end that the pull rod is close to the movable sleeve upwards inclines, and the one end and the movable sleeve fixed connection of pull rod upwards incline, the other end of pull rod is the horizontality, and the one end that the pull rod is the horizontality is close to with the inboard of go-between, fixedly connected with spacing ring on the inner wall of go-between, the spacing ring is located the bottom of pull rod, and spacing ring and the bottom region coincidence of pull rod, the top fixedly connected with of spacing ring and pull rod quantity assorted L shape fixture block, a plurality of L shape fixture block is about screw rod rotational symmetry, and the distance at L shape fixture block horizontal segment to spacing ring top is greater than the thickness of pull rod bottom horizontal part.
Further, the inboard of centre form is equipped with a plurality of elastic pieces, and is a plurality of the elastic piece is annular distribution, and the top of elastic piece and the bottom fixed connection of last mould, the bottom of elastic piece is to keeping away from sheathed tube direction slope, and one side fixedly connected with vibration ball that the elastic piece bottom is close to the centre form inner wall, fixedly connected with is a plurality of vertical bar archs on the inner wall of centre form, and the bar arch can be with vibration ball contact.
Further, the bottom fixedly connected with sealing ring of last mould, sealing groove with sealing ring assorted has been seted up at the top of bed die, and the sealing ring rotates and installs in the sealing groove.
Further, the balls are uniformly arranged at the bottom of the sealing ring, and the bottoms of the balls are attached to the groove wall at the bottom of the sealing groove.
Further, a cooling channel is formed in the inner wall of the lower die, the cooling channel is spiral, and the openings at the top end and the bottom end of the cooling channel are respectively connected with a water outlet pipe and a water inlet pipe.
Further, the bottom of the upper die is provided with an annular groove, the groove is matched with the compression ring, and the depth of the groove is smaller than the thickness of the compression ring.
The invention also provides a processing method of the die for producing the hydraulic valve body, which comprises the following steps:
step one: firstly, placing a backing plate into a cavity, then buckling an upper die on the top of a lower die, and then screwing a fixing sleeve on a fixing rod, so that the upper die and the lower die are locked;
step two: screwing the movable sleeve to the bottom end of the screw rod, and clamping the pull rod on the movable sleeve with the L-shaped clamping block;
step three: connecting the casting groove with a casting pipe, and injecting casting liquid into the casting groove;
step four: when the casting liquid in the casting groove does not descend any more, the motor is started to drive the upper die to rotate through the gear, so that the connecting ring pulls the casting pipe to ascend at a constant speed under the cooperation of the movable sleeve and the screw rod;
step five: continuously supplementing casting liquid into the casting groove in the rising process of the casting pipe until the movable sleeve rises to the highest point;
step six: cooling water is injected into the cooling channel, so that the cooling of the die can be accelerated;
step seven: after the mold is cooled, the casting groove, the movable sleeve and the fixed sleeve are sequentially taken down, then the upper mold is taken down, at the moment, the mold and the backing plate are both positioned in the cavity, and finally the sleeve is pulled, so that the backing plate and the mold can be taken out from the cavity together.
The invention has the technical effects and advantages that:
1. according to the invention, the casting assembly is arranged, when casting liquid enters the casting pipes through the casting groove, the motor can drive the plurality of casting pipes to rotate around the fixed rods along with the starting of the motor, so that the plurality of casting pipes can be uniformly cast, and in the casting process, the bottom of the casting pipe is close to the liquid level of the casting liquid in the cavity, so that the casting liquid is prevented from splashing when entering the cavity, the possibility that air enters the casting liquid is further reduced, and the compression ring can be always pressed at the top of the casting liquid in the cavity, so that the air is prevented from entering the casting liquid to a certain extent, and the casting quality of a subsequent die is improved;
2. according to the invention, the elastic sheets are arranged, when the upper die is driven by the motor to rotate, the elastic sheets can also rotate together under the drive of the upper die, in the process, when the vibrating balls at the bottoms of the elastic sheets are contacted with the strip-shaped protrusions on the inner die, the vibrating balls can strike the strip-shaped protrusions, so that the inner die vibrates, and along with the vibration of the inner die, the inner die can vibrate casting liquid in the cavity, so that air remained in the casting liquid can be vibrated, and the quality of a finished product of the die is improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic perspective view of a structure other than a casting trough in the present invention;
FIG. 3 is an enlarged view of portion A of FIG. 2 in accordance with the present invention;
FIG. 4 is a partial cross-sectional view of the structure of the present invention;
FIG. 5 is an enlarged view of portion B of FIG. 4 in accordance with the present invention;
FIG. 6 is a schematic perspective view of the upper mold, inner mold and casting assembly of the present invention;
FIG. 7 is a schematic perspective view of the upper mold, inner mold, casting assembly, shim plate, etc. in accordance with the present invention;
FIG. 8 is a perspective view of a backing plate, sleeve, and locating bar of the present invention;
fig. 9 is a schematic perspective view of a casting trough and a connecting pipe according to the present invention.
In the figure: 1. a lower die; 2. an upper die; 3. an inner mold; 4. casting the assembly; 41. a compression ring; 42. casting a tube; 43. a connecting ring; 44. an exhaust pipe; 45. a casting tank; 46. a connecting pipe; 5. a backing plate; 6. a sleeve; 7. a positioning rod; 8. a fixed rod; 9. a fixed sleeve; 10. a swivel; 11. a motor; 12. a gear; 13. a lifting assembly; 131. a screw; 132. a movable sleeve; 133. a pull rod; 134. a limiting ring; 135. an L-shaped clamping block; 14. an elastic sheet; 15. a vibrating ball; 16. a bar-shaped protrusion; 17. a seal ring; 18. a cooling channel; 19. a water outlet pipe; 20. a water inlet pipe; 21. a groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the embodiments.
The invention provides a die for producing a hydraulic valve body as shown in figures 1 to 9, which comprises a lower die 1, wherein a cylindrical cavity is formed in the top of the lower die 1, an upper die 2 is arranged in the top of the lower die 1, a cylindrical inner die 3 is rotationally connected to the bottom of the upper die 2, a casting component 4 is arranged between the outer side of the inner die 3 and the cavity, a base plate 5 matched with the diameter of the cavity is arranged at the bottom of the inner die 3, a sleeve 6 is vertically connected to the center of the top of the base plate 5, the top of the sleeve 6 is inserted into the upper die 2 in a sliding manner, the bottom of the sleeve 6 is communicated with the bottom of the base plate 5, a plurality of positioning rods 7 are vertically and fixedly connected to the top of the base plate 5, and the positioning rods 7 are inserted into the bottom of the inner die 3 in a sliding manner;
the sleeve 6 is internally and fixedly inserted with a fixing rod 8 in a sliding way, the bottom of the fixing rod 8 is vertically and fixedly connected with the inner wall of the bottom of the cavity, a fixing sleeve 9 is sleeved at the position, close to the top end, of the fixing rod 8 in a threaded way, the inner diameter of the fixing sleeve 9 is equal to the outer diameter of the sleeve 6, the inner height of the fixing sleeve 9 is equal to the distance from the top of the sleeve 6 to the top of the upper die 2, the bottom of the fixing sleeve 9 is rotationally connected with a swivel 10, one side of the lower die 1 is provided with a motor 11, a gear 12 is sleeved on an output shaft of the motor 11, teeth are annularly distributed at the edge position of the bottom of the upper die 2, and the teeth are meshed with the gear 12;
the casting assembly 4 comprises a compression ring 41, the width of the compression ring 41 is equal to the distance between the outer side of the inner mold 3 and the inner wall of the cavity, a plurality of casting pipes 42 are vertically connected to the top of the compression ring 41, the bottoms of the casting pipes 42 are communicated with the bottom of the compression ring 41, the tops of the casting pipes 42 are in sliding insertion connection with the upper mold 2, the same connecting ring 43 is fixedly connected between the tops of the casting pipes 42, the top of the casting pipes 42 is communicated with the top of the connecting ring 43, two exhaust pipes 44 are additionally vertically and fixedly connected to the top of the compression ring 41, the bottom of the exhaust pipes 44 is communicated with the bottom of the compression ring 41, the top of the exhaust pipes 44 are in sliding insertion connection with the upper mold 2, annular casting grooves 45 are formed in the top of the connecting ring 43, a plurality of connecting pipes 46 are in one-to-one insertion connection with the casting pipes 42, and the inner side of the connecting ring 43 is provided with a lifting assembly 13;
the lifting assembly 13 comprises a screw rod 131, the screw rod 131 is vertically and fixedly connected to the top of the fixed rod 8, the diameter of the screw rod 131 is smaller than that of the fixed rod 8, a movable sleeve 132 is sleeved on the screw rod 131 in a threaded manner, a plurality of pull rods 133 are annularly arranged on the outer side of the movable sleeve 132, one ends of the pull rods 133 close to the movable sleeve 132 incline upwards, the upwardly inclined ends of the pull rods 133 are fixedly connected with the movable sleeve 132, the other ends of the pull rods 133 are in a horizontal state, one horizontal ends of the pull rods 133 are close to the inner sides of the connecting rings 43, a limiting ring 134 is fixedly connected to the inner walls of the connecting rings 43, the limiting ring 134 is positioned at the bottom of the pull rods 133, the limiting ring 134 coincides with the bottom area of the pull rods 133, L-shaped clamping blocks 135 which are matched with the pull rods 133 in number are fixedly connected to the top of the limiting ring 134, the L-shaped clamping blocks 135 are rotationally symmetrical about the screw rod 131, and the distance from the bottom of the horizontal section of each L-shaped clamping block 135 to the top of the corresponding limiting ring 134 is larger than the thickness of the horizontal section at the bottom end of the pull rod 133;
before casting the die, sleeving the sleeve 6 on the fixed rod 8, attaching the bottom of the backing plate 5 to the bottom inner wall of the cavity, fastening the upper die 2 to the lower die 1, enabling the upper die 2 to be tightly attached to the lower die 1, enabling the compression ring 41 to be positioned between the outer side of the inner die 3 and the cavity, attaching the bottom of the compression ring 41 to the bottom inner wall of the cavity, screwing the fixed sleeve 9 on the fixed rod 8, enabling the sleeve 6 to be tightly pressed by the fixed sleeve 9, enabling the upper die 2 to be tightly pressed by the rotating ring 10, screwing the movable sleeve 132 to the bottom end position of the screw 131, fastening the plurality of pull rods 133 on the movable sleeve 132 with the plurality of L-shaped clamping blocks 135 one by one, and finally inserting the plurality of connecting pipes 46 at the bottom of the casting groove 45 into the plurality of casting pipes 42 one by one, so as to realize the connection operation of the casting groove 45 and the casting pipes 42;
during casting, casting liquid is added into the casting groove 45, so that the casting liquid can enter the casting pipe 42 through the connecting pipe 46, the bottom of the pressing ring 41 is tightly attached to the bottom inner wall of the cavity in the initial state, so that the casting liquid can stay in the casting pipe 42, when the casting liquid in the casting groove 45 is not lowered any more, the motor 11 is started, the upper die 2 is driven to rotate through the gear 12, and along with the rotation of the upper die 2, the upper die 2 can drive the plurality of casting pipes 42, the connecting ring 43 and the pressing ring 41 to rotate around the fixed rod 8, the inner die 3 can be kept stationary under the limit of the positioning rod 7 at the top of the backing plate 5, meanwhile, the L-shaped clamping blocks 135 on the connecting ring 43 can push the movable sleeve 132 to rotate through the corresponding pull rods 133, and along with the rotation of the movable sleeve 132, the movable sleeve 132 can gradually move upwards along the screw rods 131, so that the casting pipe 42 and the pressing ring 41 are pulled upwards together, and when the bottom of the casting pipe 41 is separated from the bottom inner wall of the cavity, the casting liquid can flow into the bottom of the casting pipe 42, and air can be prevented from entering the cavity through the space of the casting pipe 42 due to the fact that the splashing liquid can be discharged into the bottom of the cavity;
in addition, as the plurality of casting pipes 42 rotate, the casting liquid in the plurality of casting pipes 42 can uniformly fill the space outside the internal mold 3, so that the whole mold is uniform in the casting process, as casting is continued, the casting liquid needs to be continuously supplemented into the casting groove 45 until the movable sleeve 132 moves to the top end position of the screw 131, at this time, the compression ring 41 can be always pressed on the top of the casting liquid in the cavity in the whole casting process, so that air can be prevented from entering the casting liquid to a certain extent, and the casting quality of the subsequent mold is improved;
after the mold is cast, after the mold is cooled, the casting groove 45, the movable sleeve 132 and the fixed sleeve 9 are sequentially taken down, then the upper mold 2 is taken down, at this time, the mold and the backing plate 5 are both positioned in the cavity, and finally the sleeve 6 is pulled, so that the backing plate 5 and the mold can be taken out from the cavity together.
As shown in fig. 4 to 6, the inner side of the inner mold 3 is provided with a plurality of elastic sheets 14, the plurality of elastic sheets 14 are distributed in a ring shape, the top of each elastic sheet 14 is fixedly connected with the bottom of the upper mold 2, the bottom ends of the elastic sheets 14 incline towards the direction away from the sleeve 6, one side, close to the inner wall of the inner mold 3, of the bottom ends of the elastic sheets 14 is fixedly connected with a vibrating ball 15, the inner wall of the inner mold 3 is fixedly connected with a plurality of vertical strip-shaped protrusions 16, and the strip-shaped protrusions 16 can be in contact with the vibrating ball 15;
through being equipped with the elastic sheet 14, when last mould 2 rotates under the drive of motor 11, a plurality of elastic sheets 14 also can rotate together under the drive of last mould 2, and in this process, when the vibration ball 15 of elastic sheet 14 bottom and the protruding 16 of bar on the centre form 3 contact, vibration ball 15 can strike the protruding 16 of bar to make centre form 3 produce the vibration, and along with the vibration of centre form 3, centre form 3 can vibrate the casting liquid in the die cavity, thereby make the air that remains in the casting liquid can be shaken out, and then improve the finished product quality of mould.
As shown in fig. 4 and 6, the bottom of the upper die 2 is fixedly connected with a sealing ring 17, the top of the lower die 1 is provided with a sealing groove matched with the sealing ring 17, the sealing ring 17 is rotatably arranged in the sealing groove, balls are uniformly arranged at the bottom of the sealing ring 17, and the bottom of the balls is attached to the wall of the bottom groove of the sealing groove;
through being equipped with sealing ring 17, when last mould 2 and 1 lock of bed die are in the same place, sealing ring 17 can cooperate the seal groove to improve the gas tightness between last mould 2 and the bed die 1, and at last mould 2 pivoted in-process, the ball of sealing ring 17 bottom can roll along the bottom inner wall of seal groove to reduce the frictional force between sealing ring 17 and the seal groove, and then make the mould 2 can be under the drive of motor 11 more steady rotation.
As shown in fig. 4, a cooling channel 18 is formed in the inner wall of the lower die 1, the cooling channel 18 is in a spiral shape, and the top end opening and the bottom end opening of the cooling channel 18 are respectively connected with a water outlet pipe 19 and a water inlet pipe 20;
by providing the cooling channel 18, after the casting of the mold is completed, cooling water can be injected into the cooling channel 18 through the water inlet pipe 20, so that the cooling of the mold is accelerated, and the molding efficiency of the mold is improved.
As shown in fig. 6, the bottom of the upper die 2 is provided with an annular groove 21, the groove 21 is matched with the compression ring 41, and the depth of the groove 21 is smaller than the thickness of the compression ring 41;
by being provided with the groove 21, when the pressing ring 41 gradually enters the groove 21 along with the rising of the movable sleeve 132, the outer side wall of the pressing ring 41 can be tightly attached to the inner wall of the cavity, and meanwhile, the pressing ring 41 can be blocked at the joint of the upper die 2 and the lower die 1, so that the air tightness between the lower die 1 and the upper die 2 can be improved.
The invention also provides a processing method of the die for producing the hydraulic valve body, which comprises the following steps:
step one: firstly, placing a backing plate 5 into a cavity, then buckling an upper die 2 on the top of a lower die 1, and then screwing a fixing sleeve 9 on a fixing rod 8, so as to lock the upper die 2 and the lower die 1;
step two: screwing the movable sleeve 132 to the bottom end of the screw 131, and clamping the pull rod 133 on the movable sleeve 132 with the L-shaped clamping block 135;
step three: connecting the casting tank 45 with the casting pipe 42, and injecting casting liquid into the casting tank 45;
step four: when the casting liquid in the casting groove 45 does not descend any more, the motor 11 is started to drive the upper die 2 to rotate through the gear 12, so that the connecting ring 43 pulls the casting pipe 42 to ascend at a constant speed under the cooperation of the movable sleeve 132 and the screw 131;
step five: continuously replenishing casting liquid into the casting groove 45 in the process of lifting the casting pipe 42 until the movable sleeve 132 is lifted to the highest point;
step six: cooling water is injected into the cooling channels 18, so that cooling of the mold can be accelerated;
step seven: after the mold is cooled, the casting groove 45, the movable sleeve 132 and the fixed sleeve 9 are sequentially taken down, then the upper mold 2 is taken down, at this time, the mold and the backing plate 5 are both positioned in the cavity, and finally the sleeve 6 is pulled, so that the backing plate 5 and the mold can be taken out from the cavity together.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting.
Claims (9)
1. The utility model provides a mould is used in production of hydrovalve valve body, includes bed die (1), its characterized in that: the top of the lower die (1) is provided with a cylindrical cavity, the top of the lower die (1) is provided with an upper die (2), the bottom of the upper die (2) is rotationally connected with a cylindrical inner die (3), a casting component (4) is arranged between the outer side of the inner die (3) and the cavity, a base plate (5) matched with the diameter of the cavity is arranged at the bottom of the inner die (3), a sleeve (6) is vertically connected to the center of the top of the base plate (5), the top of the sleeve (6) is slidingly inserted on the upper die (2), the bottom of the sleeve (6) is communicated with the bottom of the base plate (5), a plurality of positioning rods (7) are vertically and fixedly connected to the top of the base plate (5), and the positioning rods (7) are slidingly inserted at the bottom of the inner die (3); the utility model discloses a die, including sleeve pipe (6), fixed rod (8) is run through in the slip, the bottom of fixed rod (8) and the bottom inner wall vertical fixation of die cavity, fixed sleeve (9) has been cup jointed to the position screw thread that fixed rod (8) are close to the top, the internal diameter of fixed sleeve (9) equals the external diameter of sleeve pipe (6), and the inside height of fixed sleeve (9) equals the distance at sleeve pipe (6) top to last mould (2) top, the bottom rotation of fixed sleeve (9) is connected with swivel (10), motor (11) are installed to one side of bed die (1), and cup jointed gear (12) on the output shaft of motor (11), the bottom edge position annular distribution of last mould (2) has tooth, and tooth and gear (12) meshing.
2. The hydraulic valve body production die set forth in claim 1, wherein: the casting assembly (4) comprises a pressing ring (41), the width of the pressing ring (41) is equal to the distance from the outer side of the inner die (3) to the inner wall of the die cavity, a plurality of casting pipes (42) are vertically connected to the top of the pressing ring (41), the bottom of the casting pipes (42) is communicated with the bottom of the pressing ring (41), the top of the casting pipes (42) is in sliding penetration connection with the upper die (2), a plurality of connecting rings (43) are fixedly connected between the tops of the casting pipes (42), the top of the casting pipes (42) is communicated with the top of the connecting rings (43), two exhaust pipes (44) are vertically and fixedly connected to the top of the pressing ring (41), the bottom of the exhaust pipes (44) is communicated with the bottom of the pressing ring (41), the top of the exhaust pipes (44) is in sliding penetration connection with the upper die (2), a plurality of connecting pipes (46) are in penetration connection with the bottom of the casting grooves (45), and a plurality of the connecting pipes (46) are in one-to-one connection with the plurality of casting pipes (42), and the connecting components (13) are in penetration connection with the connecting rings (43).
3. The hydraulic valve body production die according to claim 2, wherein: the lifting assembly (13) comprises a screw rod (131), the top at dead lever (8) is connected at the vertical fixed of screw rod (131), and the diameter of screw rod (131) is less than the diameter of dead lever (8), movable sleeve (132) has been cup jointed to the screw rod (131) upper thread, the outside annular of movable sleeve (132) is provided with a plurality of pull rods (133), one end tilt up that pull rod (133) is close to movable sleeve (132), and one end and movable sleeve (132) fixed connection of pull rod (133) tilt up, the other end of pull rod (133) is the horizontality, and one end that pull rod (133) is the horizontality is close to with the inboard of go-between (43), fixedly connected with spacing ring (134) on the inner wall of go-between (43), spacing ring (134) are located the bottom of pull rod (133), and spacing ring (134) and the bottom region coincidence of pull rod (133), the top fixedly connected with and pull rod (133) quantity assorted L shape fixture block (135), a plurality of L shape fixture block (135) are about the horizontal segment (135) rotation of the horizontal segment (133) and the thickness of the horizontal segment (133).
4. A hydraulic valve body production die according to claim 3, wherein: the inside of centre form (3) is equipped with a plurality of elastic pieces (14), and is a plurality of elastic pieces (14) are annular distribution, and the top of elastic piece (14) and the bottom fixed connection of last mould (2), the bottom of elastic piece (14) is to keeping away from the direction slope of sheathed tube (6), and one side fixedly connected with vibration ball (15) that is close to centre form (3) inner wall in elastic piece (14) bottom, fixedly connected with a plurality of vertical bar protruding (16) on the inner wall of centre form (3), and bar protruding (16) can be with vibration ball (15) contact.
5. The hydraulic valve body production die set forth in claim 4, wherein: the bottom of last mould (2) fixedly connected with sealing ring (17), sealing groove with sealing ring (17) assorted has been seted up at the top of bed die (1), and sealing ring (17) rotate and install in the sealing groove.
6. The hydraulic valve body production die set forth in claim 5, wherein: the bottom of sealing ring (17) evenly installs the ball, and the bottom of ball and the laminating of the bottom cell wall of seal groove.
7. The hydraulic valve body production die set forth in claim 6, wherein: the inner wall of the lower die (1) is provided with a cooling channel (18), the cooling channel (18) is spiral, and openings at the top end and the bottom end of the cooling channel (18) are respectively connected with a water outlet pipe (19) and a water inlet pipe (20).
8. The hydraulic valve body production die set forth in claim 7, wherein: annular grooves (21) are formed in the bottom of the upper die (2), the grooves (21) are matched with the pressing rings (41), and the depth of the grooves (21) is smaller than the thickness of the pressing rings (41).
9. A method of processing the die for producing a hydraulic valve body according to claim 8, characterized in that: the method comprises the following steps:
step one: firstly, placing a base plate (5) into a cavity, then buckling an upper die (2) on the top of a lower die (1), and then screwing a fixing sleeve (9) on a fixing rod (8), so as to lock the upper die (2) and the lower die (1);
step two: screwing the movable sleeve (132) to the bottom end of the screw (131), and clamping the pull rod (133) on the movable sleeve (132) with the L-shaped clamping block (135);
step three: connecting the casting tank (45) with the casting pipe (42), and injecting casting liquid into the casting tank (45);
step four: when the casting liquid in the casting groove (45) is not lowered any more, the motor (11) is started to drive the upper die (2) to rotate through the gear (12), so that the connecting ring (43) pulls the casting pipe (42) to rise at a constant speed under the matching action of the movable sleeve (132) and the screw rod (131);
step five: continuously supplementing casting liquid into the casting groove (45) in the process of rising the casting pipe (42) until the movable sleeve (132) rises to the highest point;
step six: cooling water is injected into the cooling channel (18), so that the cooling of the die can be accelerated;
step seven: after the mold is cooled, the casting groove (45), the movable sleeve (132) and the fixed sleeve (9) are sequentially taken down, then the upper mold (2) is taken down, at the moment, the mold and the backing plate (5) are both positioned in the cavity, and finally the sleeve (6) is pulled, so that the backing plate (5) and the mold can be taken out from the cavity together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202311359868.6A CN117102436B (en) | 2023-10-20 | 2023-10-20 | Die for producing hydraulic valve body and processing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311359868.6A CN117102436B (en) | 2023-10-20 | 2023-10-20 | Die for producing hydraulic valve body and processing method thereof |
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| CN117102436A CN117102436A (en) | 2023-11-24 |
| CN117102436B true CN117102436B (en) | 2023-12-19 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB738757A (en) * | 1952-08-20 | 1955-10-19 | Bristol Aeroplane Co Ltd | Improvements in or relating to methods of casting metals |
| US3381742A (en) * | 1967-06-23 | 1968-05-07 | North American Rockwell | Metal casting and solidification |
| CN209578060U (en) * | 2019-03-06 | 2019-11-05 | 沧州晨昊管道设备有限公司 | Valve body intensive processes technology die set is cast based on evaporative pattern precise |
| CN215199561U (en) * | 2021-04-13 | 2021-12-17 | 江苏创尔福机电科技有限公司 | Mould is used in production of hydrovalve valve body |
| CN114054721A (en) * | 2021-11-29 | 2022-02-18 | 山东玲珑轮胎股份有限公司 | Mold casting device |
| CN216502220U (en) * | 2021-12-03 | 2022-05-13 | 三鑫重工机械有限公司 | Steel casting forming device |
| CN115365457A (en) * | 2022-08-19 | 2022-11-22 | 邱小金 | Precision casting large-caliber thin-wall cavity modeling mold |
| CN116638052A (en) * | 2023-05-31 | 2023-08-25 | 安徽应流机电股份有限公司 | Hydraulic pilot valve body casting die and processing method thereof |
-
2023
- 2023-10-20 CN CN202311359868.6A patent/CN117102436B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB738757A (en) * | 1952-08-20 | 1955-10-19 | Bristol Aeroplane Co Ltd | Improvements in or relating to methods of casting metals |
| US3381742A (en) * | 1967-06-23 | 1968-05-07 | North American Rockwell | Metal casting and solidification |
| CN209578060U (en) * | 2019-03-06 | 2019-11-05 | 沧州晨昊管道设备有限公司 | Valve body intensive processes technology die set is cast based on evaporative pattern precise |
| CN215199561U (en) * | 2021-04-13 | 2021-12-17 | 江苏创尔福机电科技有限公司 | Mould is used in production of hydrovalve valve body |
| CN114054721A (en) * | 2021-11-29 | 2022-02-18 | 山东玲珑轮胎股份有限公司 | Mold casting device |
| CN216502220U (en) * | 2021-12-03 | 2022-05-13 | 三鑫重工机械有限公司 | Steel casting forming device |
| CN115365457A (en) * | 2022-08-19 | 2022-11-22 | 邱小金 | Precision casting large-caliber thin-wall cavity modeling mold |
| CN116638052A (en) * | 2023-05-31 | 2023-08-25 | 安徽应流机电股份有限公司 | Hydraulic pilot valve body casting die and processing method thereof |
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|---|---|
| CN117102436A (en) | 2023-11-24 |
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