CN217666302U - Honeycomb type advances three-plate die casting die who waters - Google Patents
Honeycomb type advances three-plate die casting die who waters Download PDFInfo
- Publication number
- CN217666302U CN217666302U CN202220991592.8U CN202220991592U CN217666302U CN 217666302 U CN217666302 U CN 217666302U CN 202220991592 U CN202220991592 U CN 202220991592U CN 217666302 U CN217666302 U CN 217666302U
- Authority
- CN
- China
- Prior art keywords
- die
- plate
- fixed
- ejection
- casting
- 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.)
- Active
Links
Images
Landscapes
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The utility model discloses a honeycomb type pouring three-plate die-casting die, which relates to the technical field of die-casting dies and comprises a fixed die, a middle plate, a movable die, a pouring mechanism, a core-pulling mechanism and an ejection mechanism; the pouring mechanism comprises a pouring gate, a plurality of shunting blocks communicated with the pouring gate and a plurality of flow guide columns communicated with the shunting blocks one by one, and the flow guide columns are inverted cones; a movable mold core is arranged on the movable mold, a fixed mold core is arranged on the fixed mold, and a cavity with a plurality of feed inlets is formed between the movable mold core and the fixed mold core; the fixed die is provided with a vertical guide pillar and a limiting pull rod; the core pulling mechanism comprises a sliding block seat, an inclined guide post inserted into the sliding block seat and a core pulling fixed on the sliding block seat; the input and the die casting machine of ejection mechanism are connected, the output establish with the die cavity position corresponds on the second die joint, the utility model discloses the product shaping of production is effectual, has solved the penetrability of casting and pressing products such as radiator or water tank and has owed the quality defect of casting and shrinkage porosity.
Description
Technical Field
The utility model relates to a die casting die technical field specifically is a three board die casting die that watering was advanced to honeycomb formula.
Background
The die-casting mould is a method for casting liquid die forging, and the manufacturing process is generally completed on a special die-casting mould forging machine. The basic technological process is that molten metal is first cast at low speed or high speed and filled into the cavity of mold with movable cavity surface, and the mold is pressed and forged with the cooling process of molten metal to eliminate the shrinkage cavity and shrinkage porosity of the blank and to make the inner structure of the blank reach the crushed crystal grains in forged state, so that the comprehensive mechanical performance of the blank is obviously raised.
Along with the rapid development of new energy automobile trade in recent years, the operation requirement of aluminum alloy is higher and higher, the quality requirement of product is also stricter and more, the quality of new energy automobile's partial die-casting product in the production process is difficult to handle the accuse, for example, radiator and water tank all have the fin, this fin is great with body structure's weight phase difference, and body structure and fin structure's hookup location is less, current traditional mode of watering of advancing is only a die joint, this die joint is located the side of foundry goods, it is bad through the product finished product of producing at this mode, for example can appear the penetrability and owe cast and the product defect of shrinkage porosity, common defect is that the foundry goods top can not obtain effective filling.
The casting and the pouring mechanism of the three-plate die-casting die are positioned in two different parting surface layers, the pouring mechanism and the casting are separated by opening two parting surfaces through the die, and the demoulding effect of the conventional three-plate die-casting die is poor.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a three board die casting die that watering is advanced to honeycomb to solve partial die casting product and appear that the finished product is bad and the not good technical problem of drawing of patterns effect.
In order to solve the technical problem, the utility model provides a following optimization technical scheme:
a honeycomb type pouring three-plate die-casting die comprises a fixed die, a middle plate, a movable die, a pouring mechanism, a core-pulling mechanism and an ejection mechanism, wherein the pouring mechanism is arranged on the fixed die, a first parting surface is formed between the fixed die and the middle plate, and a second parting surface is formed between the middle plate and the movable die;
the pouring mechanism comprises a pouring gate, a plurality of shunting blocks communicated with the pouring gate and a plurality of flow guide columns communicated with the shunting blocks one by one, and the flow guide columns are inverted cones;
a movable mold core is arranged on the movable mold, a fixed mold core is arranged on the fixed mold, a cavity with a plurality of feed inlets is formed between the movable mold core and the fixed mold core, the plurality of flow guide columns are aligned to the plurality of feed inlets one by one, the upper end surface of the cavity is arranged on the first parting surface, and the lower end surface of the cavity is arranged on the second parting surface;
the fixed die is provided with a vertical guide pillar and a limiting pull rod, the vertical guide pillar is connected with the middle plate and the movable die in a sliding mode, the limiting pull rod is provided with a limiting hole, the middle plate is provided with a limiting post, and the limiting post is arranged in the limiting hole;
the core pulling mechanism comprises a slider seat, an inclined guide post inserted into the slider seat and a core pulling fixed on the slider seat, wherein one end of the inclined guide post is fixed on the middle plate, the core pulling is arranged in the cavity, and the included angle between the inclined guide post and the slider seat is smaller than 90 degrees;
the input end of the ejection mechanism is connected with the die casting machine, and the output end of the ejection mechanism is arranged on the second parting surface corresponding to the die cavity.
Furthermore, the middle plate and the movable die are both provided with guide grooves into which the vertical guide pillars are inserted, and the inner walls of the guide grooves are provided with guide sleeves.
Further, the ejection mechanism comprises a fixing mechanism, the fixing mechanism comprises a base and square iron, the base is arranged below the ejection bottom plate, the square iron is fixed between the base and the movable die, a boss is arranged at the bottom end of the inner wall of the square iron, and the ejection bottom plate is placed on the boss.
Furthermore, the fixing mechanism further comprises a supporting column, and the supporting column penetrates through the ejection bottom plate and the ejection top plate and is fixed on the base and between the movable mold.
Furthermore, a sprue bush is sleeved outside the sprue, and a cooling ring is sleeved outside the sprue bush.
Furthermore, the ejection mechanism comprises an ejection bottom plate, an ejection top plate fixed on the ejection bottom plate and an ejection rod fixed on the ejection top plate, and the end part of the ejection rod is arranged on the second parting surface corresponding to the cavity.
Further, the ejection mechanism further comprises a return rod, and the return rod is fixed between the ejection top plate and the middle plate.
Furthermore, the oblique guide post is fixed on the middle plate through a pressing block, and the slider seat is provided with a guide hole for the oblique guide post to penetrate through.
Furthermore, the middle plate is internally provided with a containing groove for containing the sliding block seat, the outer wall of the middle plate is provided with a limiting block, and the limiting block is used for sealing the containing groove.
Furthermore, the bottom surface of the middle plate is provided with an anti-collapse insert.
The utility model discloses for prior art following beneficial effect has:
1. the guide columns are arranged above the cavity, and the guide columns are aligned with the feed inlets of the cavity one by one, so that the cavity can be filled to the greatest extent, the produced product has a good molding effect, and the quality defects of insufficient penetrability and shrinkage porosity of cast products such as radiators or water tanks are overcome;
2. vertical guide pillar, limit pull rod and the mechanism of loosing core have been set up, when the cover half upward movement, because the water conservancy diversion post sets up to the inverted cone body, the water conservancy diversion post can be light with the medium plate separation, under vertical guide pillar and limit pull rod drive, the medium plate also upward movement, will loose core when the medium plate upward movement takes out to through the ejecting foundry goods of ejection mechanism, the completion drawing of patterns that this mode was lighter has solved the not good technical defect of drawing of patterns effect.
Drawings
Fig. 1 is a first cross-sectional view of a three-plate die casting mold of the present invention.
Fig. 2 is a second cross-sectional view of the three-plate die casting mold of the present invention.
Fig. 3 is a schematic structural diagram of the pouring mechanism and the casting of the present invention.
In the figure: 1. fixing a mold; 2. a middle plate; 3. moving the mold; 4. a first parting surface; 5. a second parting surface; 6. a gate; 7. a shunting block; 8. a flow guide column; 9. a movable mold core; 10. fixing a mold core; 11. a vertical guide post; 12. a limiting pull rod; 13. a limiting hole; 14. a limiting column; 15. a slider seat; 16. an inclined guide post; 17. core pulling; 18. a guide sleeve; 19. a base; 20. square iron; 21. a boss; 22. a support column; 23. a sprue bush; 24. cooling the ring; 25. ejecting the bottom plate; 26. ejecting a top plate; 27. ejecting the rod; 28. a return link; 29. a limiting block; 30. an anti-collapse insert; 31. casting; 32. a screw; 33. and (7) briquetting.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all 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 application.
Referring to fig. 1-3, a honeycomb type pouring three-plate die-casting die comprises a fixed die 1, a middle plate 2, a movable die 3, a pouring mechanism, a core-pulling 17 mechanism and an ejection mechanism, wherein the fixed die 1 is fixed on a fixed die holder on one side of a pressure chamber of the die-casting machine, the movable die 3 is fixed on a movable die holder of the die-casting machine, the ejection mechanism is connected with a power output end of the die-casting machine, the pouring mechanism is arranged on the fixed die 1, a first parting surface 4 is formed between the fixed die 1 and the middle plate 2, and a second parting surface 5 is formed between the middle plate 2 and the movable die 3;
the pouring mechanism comprises a pouring gate 6, a plurality of shunting blocks 7 communicated with the pouring gate 6 and a plurality of flow guide columns 8 communicated with the shunting blocks 7 one by one, the pouring gate 6 is connected with a pressure chamber or a nozzle of a die-casting machine, molten metal flows into the pouring gate 6 from the pressure chamber or the nozzle, the flow guide columns 8 are inverted cones, and when demoulding is carried out, a flow channel is separated from a product by using the instant of mould opening, so that demoulding is more convenient;
a movable mold core 9 is arranged on the movable mold 3, a fixed mold core 10 is arranged on the fixed mold 1, a cavity with a plurality of feed inlets is formed between the movable mold core 9 and the fixed mold core 10, a plurality of flow guide columns 8 are aligned with the feed inlets one by one, the feed inlets are specifically positioned at the topmost parts of the radiating fins, metal liquid flows into the cavity from top to bottom from the flow guide bodies, so that the upper parts of castings 31 are effectively filled, the upper end surfaces of the cavity are arranged on the first parting surfaces 4, the lower end surfaces of the cavity are arranged on the second parting surfaces 5, and the castings 31 formed in the cavity are demoulded between the first parting surfaces 4 and the second parting surfaces 5;
the fixed die is characterized in that a vertical guide pillar 11 and a limiting pull rod 12 are arranged on the fixed die 1, the vertical guide pillar 11 is connected with the middle plate 2 and the movable die 3 in a sliding mode, the vertical guide pillar 11 has the function of connecting the fixed die 1, the middle plate 2 and the movable die 3 and also has the function of guiding, a limiting hole 13 is formed in the limiting pull rod 12, a limiting column 14 is arranged on the middle plate 2, the limiting column 14 is arranged in the limiting hole 13, and the limiting column 14 and the limiting hole 13 are matched to play a role of limiting the moving range of the fixed die 1;
the core-pulling 17 mechanism comprises a slider seat 15, an inclined guide post 16 inserted into the slider seat 15 and a core-pulling 17 fixed on the slider seat 15, wherein one end of the inclined guide post 16 is fixed on the middle plate 2, the core-pulling 17 is arranged in the cavity, and the included angle between the inclined guide post 16 and the slider seat 15 is smaller than 90 degrees;
the input end of the ejection mechanism is connected with a die casting machine, and the output end of the ejection mechanism is arranged on the second parting surface 5 corresponding to the die cavity.
In the technical scheme, a fixed die holder of a die casting machine moves upwards, the instant inverted cone of the first parting surface 4 is separated from a product, and the sprue 6 is connected to a pressure chamber of the fixed die, so that the fixed die 1 moves upwards along with the sprue 6, in the moving process of the fixed die 1, the limiting pull rod 12 moves upwards, the limiting column 14 limits the fixed die 1 from the top end of the limiting hole 13 to the bottom end of the limiting hole 13 and does not slide upwards, at the moment, the fixed die 1 drives the middle plate 2 to move upwards, the second parting surface 5 is separated, because one end of the inclined guide post 16 is fixed on the middle plate 2, the other end of the inclined guide post is inserted into the slider seat 15 at an angle smaller than 90 degrees, the slider seat 15 moves rightwards when the inclined guide post 16 moves upwards in the slider seat 15, the loose core 17 is pulled out of a die cavity, the die casting machine provides power for the ejection mechanism to eject out the casting 31, and demolding of the casting 31 is completed.
It can be understood that the specific forms of the fixing of the limit lever 12 and the vertical guide post 11 to the fixed mold 1, the fixing of the limit post 14 to the middle plate 2, and the fixing of the core 17 to the slider housing 15 are various, and the fixing may be realized, for example, by screws 32 or bolts.
Referring to fig. 3, the side of the produced casting 31 is provided with a through hole, if the side of the casting 31 is provided with the through hole, the arc surface or the back-off, and the product is directly ejected, the casting 31 can be buckled on the movable mold core 9, and the mold cannot be ejected, while the core-pulling 17 mechanism has the function of solving the problem of mold ejection when the side of the product is provided with the through hole, the arc surface or the back-off and other structures, and the casting 31 can be ejected normally by pulling the core-pulling 17 out of the mold cavity before mold ejection. It can be understood that the number of the core back 17 mechanisms is not limited herein, and the number of the core back 17 mechanisms is specifically determined according to a through hole, an arc surface and an inverted structure on a side surface of a product.
The middle plate 2 with the movable mould 3 all is equipped with the confession the guide way that vertical guide pillar 11 was inserted, the inner wall of guide way is equipped with uide bushing 18, and when cover half 1 reciprocated, vertical guide pillar 11 slided in the guide way and can produce the friction, and uide bushing 18 plays and prevents to contact between vertical guide pillar 11 and middle plate 2, the movable mould 3 and produce the effect of wearing and tearing.
The die-casting die further comprises a fixing mechanism, the fixing mechanism comprises a base 19 and square iron 20, the base 19 is arranged below the ejection bottom plate 25, the square iron 20 is fixed between the base 19 and the movable die 3, the square iron 20 plays a role in supporting the movable die 3, a boss 21 is arranged at the bottom end of the inner wall of the square iron 20, the ejection bottom plate 25 is placed on the boss 21, the boss 21 is specifically a structure in which the inner wall of the square iron 20 protrudes outwards, and the upper surface of the boss is a plane and is used for bearing the ejection bottom plate 25.
The fixing mechanism further comprises a supporting column 22, wherein the supporting column 22 penetrates through the ejection bottom plate 25 and the ejection top plate 26 and is fixed on the base 19 and between the movable mold 3, and is also used for supporting the movable mold 3 to prevent the middle part of the movable mold 3 from collapsing.
The outside cover of runner 6 has runner cover 23, and runner cover 23 plays to play the room to play of runner 6 and die casting machine and is connected the fixed action, still has the cooling metal liquid simultaneously, the outside cover of runner cover 23 has cooling ring 24, and the cooling jacket is used for cooling runner cover 23.
The ejection mechanism comprises an ejection bottom plate 25, an ejection top plate 26 fixed on the ejection bottom plate 25 and an ejection rod 27 fixed on the ejection top plate 26, wherein the end part of the ejection rod 27 is arranged on the second parting surface 5 corresponding to the die cavity position, the ejection bottom plate 25 is connected with the power output end of the die casting machine, the power output end of the die casting machine upwards ejects the ejection bottom plate 25, and the ejection rod 27 ejects the casting 31 on the second parting surface 5 to complete the demoulding of the casting 31. It will be appreciated that the attachment of the ejector bottom plate 25 and the ejector top plate 26, and the attachment of the ejector top plate 26 and the ejector rod 27, may be selected to achieve a fixed action, for example, by a screw 32 or a bolt.
The ejection mechanism further comprises a return rod 28, the return rod 28 is fixed between the ejection top plate 26 and the middle plate 2, the return rod 28 is connected with a die returning mechanism of the die casting machine, the die returning mechanism presses the fixed die 1 downwards to press the fixed die to realize the reset of the fixed die 1 and the middle plate 2, the middle plate 2 abuts against the return rod 28 when resetting downwards, at the moment, the return rod 28 is stressed to reset downwards, and meanwhile, the reset of the ejection mechanism is realized.
The inclined guide post 16 is fixed on the middle plate 2 through a pressing block 33, the slider seat 15 is provided with a guide hole for the inclined guide post 16 to penetrate through, and the inclined guide post 16 and the slider seat 15 form an included angle smaller than 90 degrees, so the guide hole is also matched with the inclined guide post 16. It will be appreciated that the connection of the pressing block 33 to the middle plate 2 and the angle guide 16 may be selected to achieve the fixing function, for example, by the screw 32 or the bolt.
The middle plate 2 is internally provided with a containing groove for containing the slider seat 15, the outer wall of the middle plate 2 is provided with a limiting block 29, the limiting block 29 is used for sealing the containing groove, when the inclined guide post 16 moves upwards, the slider seat 15 moves rightwards in the containing groove, and the limiting block 29 is used for limiting the sliding range of the slider seat 15 to prevent the middle plate 2 from sliding out.
The bottom surface of the middle plate 2 is provided with the anti-collapse insert 30, the movable die 3, the middle plate 2 and the fixed die 1 are connected through the vertical guide post 11, other supporting structures do not exist, molten metal with certain acceleration rushes into a cavity from a pouring gate, the middle plate can collapse, and the anti-collapse insert 30 is used for preventing the middle plate 2 from collapsing.
The above description is only exemplary of the invention, and is intended to enable those skilled in the art to understand and implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A honeycomb type pouring three-plate die-casting die comprises a fixed die, a middle plate, a movable die, a pouring mechanism, a core-pulling mechanism and an ejection mechanism, wherein the pouring mechanism is arranged on the fixed die, a first parting surface is formed between the fixed die and the middle plate, and a second parting surface is formed between the middle plate and the movable die;
the pouring mechanism comprises a pouring gate, a plurality of shunting blocks communicated with the pouring gate and a plurality of flow guide columns communicated with the shunting blocks one by one, and the flow guide columns are inverted cones;
a movable mold core is arranged on the movable mold, a fixed mold core is arranged on the fixed mold, a cavity with a plurality of feed inlets is formed between the movable mold core and the fixed mold core, the plurality of flow guide columns are aligned to the plurality of feed inlets one by one, the upper end surface of the cavity is arranged on the first parting surface, and the lower end surface of the cavity is arranged on the second parting surface;
the fixed die is provided with a vertical guide pillar and a limiting pull rod, the vertical guide pillar is connected with the middle plate and the movable die in a sliding mode, the limiting pull rod is provided with a limiting hole, the middle plate is provided with a limiting post, and the limiting post is arranged in the limiting hole;
the core pulling mechanism comprises a slider seat, an inclined guide pillar inserted into the slider seat and a core pulling fixed on the slider seat, one end of the inclined guide pillar is fixed on the middle plate, the core pulling is arranged in the cavity, and the included angle between the inclined guide pillar and the slider seat is smaller than 90 degrees;
the input end of the ejection mechanism is connected with the die casting machine, and the output end of the ejection mechanism is arranged on the second parting surface corresponding to the die cavity.
2. The three-plate die-casting die with the honeycomb type pouring device as claimed in claim 1, wherein the ejection mechanism comprises an ejection bottom plate, an ejection top plate fixed on the ejection bottom plate and an ejection rod fixed on the ejection top plate, and the end of the ejection rod is arranged on the second parting surface corresponding to the position of the die cavity.
3. The honeycomb poured three-plate die-casting mold as claimed in claim 1, wherein the middle plate and the movable mold are provided with guide grooves into which the vertical guide pillars are inserted, and the inner walls of the guide grooves are provided with guide sleeves.
4. The honeycomb type pouring three-plate die-casting die as claimed in claim 2, further comprising a fixing mechanism, wherein the fixing mechanism comprises a base and a square iron, the base is arranged below the ejection bottom plate, the square iron is fixed between the base and the movable die, a boss is arranged at the bottom end of the inner wall of the square iron, and the ejection bottom plate is placed on the boss.
5. The three-plate honeycomb type pouring die-casting mold as claimed in claim 4, wherein the fixing mechanism further comprises a supporting column, and the supporting column penetrates through the ejection bottom plate and the ejection top plate and is fixed between the base and the movable mold.
6. The three-plate die-casting mold with honeycomb type pouring function as claimed in claim 1, wherein a sprue bush is sleeved outside the sprue, and a cooling ring is sleeved outside the sprue bush.
7. The three-plate honeycomb cast-in-place die-casting mold as claimed in claim 2, wherein the ejection mechanism further comprises a return rod, and the return rod is fixed between the ejection top plate and the middle plate.
8. The three-plate die-casting die with honeycomb type pouring function as claimed in claim 1, wherein the inclined guide post is fixed on the middle plate through a pressing block, and the slider seat is provided with a guide hole for the inclined guide post to penetrate through.
9. The three-plate die-casting die with the honeycomb type pouring device as claimed in claim 1, wherein a containing groove for containing the slider seat is formed in the middle plate, and a limiting block is arranged on the outer wall of the middle plate and used for closing the containing groove.
10. The three-plate die-casting die with the honeycomb type pouring structure is characterized in that the bottom surface of the middle plate is provided with anti-collapse inserts.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202220991592.8U CN217666302U (en) | 2022-04-26 | 2022-04-26 | Honeycomb type advances three-plate die casting die who waters |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202220991592.8U CN217666302U (en) | 2022-04-26 | 2022-04-26 | Honeycomb type advances three-plate die casting die who waters |
Publications (1)
Publication Number | Publication Date |
---|---|
CN217666302U true CN217666302U (en) | 2022-10-28 |
Family
ID=83734647
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202220991592.8U Active CN217666302U (en) | 2022-04-26 | 2022-04-26 | Honeycomb type advances three-plate die casting die who waters |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN217666302U (en) |
-
2022
- 2022-04-26 CN CN202220991592.8U patent/CN217666302U/en active Active
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN204735702U (en) | Three board die casting die structures of large -scale magnesium alloy parts center multiple feed | |
CN108607953B (en) | Valve gap wax matrix integral forming die | |
CN1318201C (en) | Demoulding mechanism for extrusion mould with side core pulling | |
CN1327993C (en) | Press casting mould of magnesium alloy gear box | |
CN1082467A (en) | The extrusion casting method of aluminum-alloy wheel and equipment | |
CN113426983A (en) | Vacuum die-casting die for front longitudinal beam of new energy automobile | |
CN207952600U (en) | One kind being convenient for molding die casting | |
CN114603111A (en) | Honeycomb type advances three board die casting die that waters | |
CN217666302U (en) | Honeycomb type advances three-plate die casting die who waters | |
CN106890978B (en) | One mould two pieces low pressure casting die of hybrid power engine cylinder cap and its casting method | |
CN112756579A (en) | Die casting die capable of automatically ejecting die casting | |
CN202479473U (en) | Automobile transmission rear-cover casting mould | |
CN214392247U (en) | Casting mold for shifting fork | |
CN201179558Y (en) | Aluminum shell mould | |
CN201659254U (en) | Die capable of one-step demolding | |
CN211248270U (en) | Magnesium metal die casting die with supplementary alignment device just can collect waste material | |
CN207308925U (en) | A kind of compression mod of electric power tool shell | |
CN221791001U (en) | Metal mold for thick and large castings | |
CN220112296U (en) | Die casting die with multi-cavity forming and quick demoulding functions | |
JPH03155444A (en) | Method and apparatus for vertical type casting | |
CN203887199U (en) | Mold for casting gearbox shell | |
CN113000820B (en) | Die for semi-solid aluminum alloy extrusion motor shell | |
CN212917568U (en) | Upper column tube die-casting die | |
CN220445023U (en) | Die casting die of spherical die casting structure | |
CN221289474U (en) | Low-pressure casting die for planetary gear carrier |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant |