CN110102737B - Die casting die with structure for preventing loose core interference - Google Patents
Die casting die with structure for preventing loose core interference Download PDFInfo
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- CN110102737B CN110102737B CN201910466465.9A CN201910466465A CN110102737B CN 110102737 B CN110102737 B CN 110102737B CN 201910466465 A CN201910466465 A CN 201910466465A CN 110102737 B CN110102737 B CN 110102737B
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- loose core
- loose
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- 238000004512 die casting Methods 0.000 title claims abstract description 18
- 238000009413 insulation Methods 0.000 claims abstract description 20
- 238000009434 installation Methods 0.000 claims abstract description 7
- 230000002265 prevention Effects 0.000 claims abstract description 7
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 210000001503 joint Anatomy 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 abstract description 2
- 238000000275 quality assurance Methods 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
- B22D17/2236—Equipment for loosening or ejecting castings from dies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to a die casting die with a core-pulling interference prevention structure, which comprises a die body, a heat insulation base and an inverted buckle core-pulling prevention structure, wherein the heat insulation base is arranged on the upper end surface and the lower end surface of the die body, the left side of the die body is provided with a single-oil-cylinder two-angle core-pulling structure with a core-pulling end inserted into the die body, the right side of the die body is provided with the inverted buckle core-pulling prevention structure with the core-pulling end inserted into the die body, the upper front side of the die body is provided with an inclined core-pulling structure with the core-pulling end inclined downwards and inserted into the die body, the rear side of the die body is provided with a rear core, the middle part of the heat insulation base positioned on the upper part of the die body. The invention has the characteristics of simple structure, convenient installation, suitability for various products, improvement of product precision, product quality assurance, product production efficiency assurance and the like.
Description
Technical Field
The invention relates to the technical field of core-pulling structures of die-casting dies, in particular to a die-casting die with a structure for preventing core-pulling interference.
Background
When the die-casting die is used for producing a product, a plurality of core-pulling structures are required to be installed for facilitating product forming, the core-pulling structures are used for assisting the product in forming, and different problems can be encountered during die opening, for example, interference is generated between core pulling and core pulling; when the mold is opened, the upper mold drives the loose core to move, so that the product is damaged by pulling; interference occurs between the core-pulling structure and the ejector plate; in order to solve the above problems, it is necessary to design a new mold structure.
Disclosure of Invention
The invention aims to solve the technical problem of providing a die-casting die with a structure for preventing core-pulling interference, which has the characteristics of simple structure, convenience in installation, suitability for various products, improvement of product precision, guarantee of product quality, guarantee of product production efficiency and the like.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a die casting die with prevent interfering structure of loosing core, prevent drawing the core structure including mould body, thermal-insulated base and back-off, mould body up end and down all install thermal-insulated base on the terminal surface, mould body left side install and loose core the end and insert this internal two angles of single-cylinder structure of loosing core, mould body right side is installed and is taken out the core end and insert this internal back-off of mould and prevent drawing the core structure of loosing core, the antecedent upper portion of mould body install the end of loosing core and insert the oblique structure of loosing core of mould body down to the slope, the rear side of mould body install the rear side and loose core, the vertical injection runner of installing in thermal-insulated base middle part that is located mould body upper portion, mould body internally arranged the die cavity.
The back-off prevent drawing structure of loosing core include slider, back-off locating piece and core pulling block, slider one end is inserted into the mould originally internally, the slider is close to one of die cavity and serves and install the core pulling block, core pulling block downside mid-mounting have the back-off locating piece, the one end lower part that the back-off locating piece is close to the die cavity has arranged outstanding step, mould body installation back-off prevent drawing structure's mounting groove bottom surface on arrange the recess that matches with the back-off locating piece, the recess is close to one of die cavity and serves to install the lock joint mounting bar of lock joint each other with the back-off locating piece.
The utility model discloses a mould, including slider, slider other end front-mounted have vertical locating lever mounting bracket that extends down, locating lever mounting bracket lower extreme transversely install the transverse orientation pole that one end inserted the mould body, mould body lower part in install the thimble board, the thimble board on vertically install with the corresponding vertical positioning pole of transverse orientation pole, the upper end and the transverse orientation pole downside of vertical positioning pole top mutually.
Two angles of single-cylinder structure of loosing core including the curb plate of loosing core, the slider of loosing core and the slider bottom plate of loosing core, the curb plate of loosing core be close to one side horizontal installation of die cavity and loose core the slider bottom plate, loose core and control on the slider bottom plate and install the slider of loosing core, the slider of loosing core be close to the one end of die cavity and install body core-pulling block, the slider bottom plate of loosing core be close to die cavity one end mid-mounting have towards the oblique main tributary pole of loosing core of die cavity extension, loose core the main tributary pole to one side and be close to die cavity one side and install tip oblique guide arm that slopes down.
The front side and the rear side of the core-pulling sliding block are respectively provided with a transverse sliding bulge, the other side of the core-pulling side plate is horizontally and transversely provided with an oil cylinder main shaft, and the oil cylinder main shaft penetrates through the core-pulling side plate and is connected with the core-pulling sliding block.
The core-pulling slide block is characterized in that two transverse slide rails which are arranged side by side from front to back are embedded in the upper end face of the core-pulling slide block bottom plate, and the core-pulling slide block is slidably mounted on the transverse slide rails.
The oblique core pulling structure comprises an oblique core pulling oil cylinder, a core pulling connecting rod and a hole position core pulling fixing block, the main shaft end of the oblique core pulling oil cylinder inclines towards the lower part of the mold cavity, the main shaft end of the oblique core pulling oil cylinder is connected with the core pulling connecting rod through a coupler, the core pulling connecting rod is close to one end of the mold cavity and is provided with the hole position core pulling fixing block, the hole position core pulling fixing block is of a rectangular plate-shaped structure perpendicular to the core pulling connecting rod, and the hole position core pulling fixing block is close to one side of the mold cavity and is.
The upper end of the hole position core pulling fixed block is provided with a chute, the middle part of the chute is provided with a core pulling hole, and the core pulling hole is internally provided with a inclined hole core pulling.
The heat insulation base comprises a base body and a heat insulation plate, one side of the base body is in butt joint with the die body, and the other side of the base body is provided with the heat insulation plate.
Has the advantages that: the invention relates to a die-casting die with a structure for preventing core-pulling interference, which has the following specific advantages:
(1) by installing the inverted buckle pulling-proof core-pulling structure, the phenomenon that the core-pulling is driven by the upper die to move when the die is opened is avoided, so that the product cannot be damaged by pulling, and the quality of the product is improved;
(2) by arranging the transverse positioning rod and the vertical positioning rod between the inverted pull-proof core-pulling structure and the ejector pin plate, the core-pulling is prevented from being ejected when the core is not completely pulled out, interference between the core-pulling structure and the ejector pin is avoided, so that a product is damaged, and a mold is protected;
(3) by installing the single-oil-cylinder two-angle core pulling structure, the two core pulling structures are reasonably combined into one core pulling structure, so that the size of the mold is reduced, the cost of the mold is saved, and the mold operation is facilitated;
(4) the inclined core pulling structure is arranged, so that a straight hole and an inclined hole can be conveniently positioned at the same time;
(5) through the installation of the heat insulation base, the mould can be ensured not to influence the mould closing table in the production process, and the service life of the mould closing table is prolonged.
Drawings
FIG. 1 is a structural view of the present invention;
FIG. 2 is a structural view of the inverted pull-out preventing core-pulling structure according to the present invention;
FIG. 3 is a structural view of a snap-fit mounting bar according to the present invention;
FIG. 4 is a view of the structure at the transverse positioning rod according to the present invention;
FIG. 5 is a structural view of the two-angle core pulling structure of the single oil cylinder;
FIG. 6 is a structural view of the angle core pulling structure according to the present invention;
FIG. 7 is a structural view of the hole site loose core fixing block according to the present invention;
figure 8 is a structural view of the heat shield of the present invention.
The figure is as follows: 1. the mold comprises a mold body, 2, a heat insulation base, 3, a single oil cylinder two-angle core-pulling structure, 4, an injection sprue, 5, a rear-side core-pulling structure, 6, a reverse buckle pulling-prevention core-pulling structure, 7, an inclined core-pulling structure, 8, a sliding block, 9, a reverse buckle positioning block, 10, a core-pulling block, 11, a transverse positioning rod, 13, a positioning rod mounting frame, 14, a vertical positioning rod, 15, an ejector pin plate, 16, a core-pulling sliding block bottom plate, 17, a core-pulling side plate, 18, a core-pulling sliding block and, the core pulling device comprises a transverse slide rail, 20, an inclined core pulling main support rod, 21, an inclined guide rod, 22, a body core pulling block, 23, a transverse sliding protrusion, 24, an inclined core pulling oil cylinder, 25, a coupler, 26, a core pulling connecting rod, 27, a hole position core pulling fixing block, 28, a horizontal hole position core pulling, 29, an inclined hole core pulling, 30, an inclined groove, 31, a core pulling hole, 32, a base body, 33, a heat insulation plate, 36, a groove, 37 and a fastening mounting strip.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
The embodiment of the invention relates to a die casting die with a core-pulling interference prevention structure, which comprises a die body 1, a heat insulation base 2 and an inverted buckle core-pulling prevention structure 6, wherein the heat insulation base 2 is arranged on the upper end surface and the lower end surface of the die body 1, the left side of the die body 1 is provided with a single-oil-cylinder two-angle core-pulling structure 3 with a core-pulling end inserted into the die body 1, the right side of the die body 1 is provided with the inverted buckle core-pulling prevention structure 6 with a core-pulling end inserted into the die body 1, the front upper part of the die body 1 is provided with an inclined core-pulling structure 7 with a core-pulling end inclined downwards and inserted into the die body 1, the rear side of the die body 1 is provided with a rear core-pulling 5, the middle part of the heat insulation base 2 positioned on the upper part of the die body 1 is vertically provided with an injection sprue 4, the mould body 1 comprises a movable mould, a fixed mould, a movable mould core and a fixed mould core, the four parts form the mould body 1 which can be opened and closed, the inverted buckle pulling-proof core pulling structure 6, the single-oil-cylinder two-angle core pulling structure 3 and the rear side core pulling 5 are all installed between the movable mould and the fixed mould, core pulling parts of the inverted buckle pulling-proof core pulling structure 6, the single-oil-cylinder two-angle core pulling structure 3 and the rear side core pulling 5 are inserted into a mould cavity, the inclined core pulling structure 7 is installed on the front side position of the.
As a preferable scheme, the inverted buckle pulling-proof core-pulling structure 6 comprises a slide block 8, an inverted buckle positioning block 9 and a core-pulling block 10, one end of the slide block 8 is inserted into the die body 1, one end of the slide block 8 close to the die cavity is provided with the core-pulling block 10, the middle part of the lower side of the core-pulling block 10 is provided with an inverted buckle positioning block 9, the lower part of one end of the inverted buckle positioning block 9 close to the mold cavity is provided with a protruding step, a groove 36 matched with the inverted buckle positioning block 9 is arranged on the bottom surface of the mounting groove for mounting the inverted buckle pulling-proof core-pulling structure 6 on the die body 1, a buckle mounting strip 37 mutually buckled with the inverted buckle positioning block 9 is mounted on one end of the groove 36 close to the die cavity, the inverted buckle positioning block 9 and the buckle mounting strip 37 on the lower end surface of the core-pulling block 10 form a lower die-locking structure, when the mold is opened, the core-pulling block 10 is not driven by the movable mold, so that the quality of the product is ensured.
As a preferred scheme, 8 other end forward-mounted of slider have vertical locating lever mounting bracket 13 that extends down, locating lever mounting bracket 13 lower extreme transversely install one end and insert transverse positioning rod 11 of mould body 1, 1 lower part of mould body in install thimble board 15, thimble board 15 on vertically install the vertical locating lever 14 corresponding with transverse positioning rod 11, vertical locating lever 14 upper end and transverse positioning rod 11 downside push up mutually, when slider 8 takes out completely, misplace between the tip of transverse positioning rod 11 and the tip of vertical locating lever 14, can carry out thimble board 15's ejecting operation this moment, the thimble on thimble board 15 can be with the product from the die cavity in the ejecting.
As an optimal scheme, the two-angle single-cylinder core pulling structure 3 comprises a core pulling side plate 17, a core pulling slider 18 and a core pulling slider bottom plate 16, the core pulling side plate 17 is horizontally provided with the core pulling slider bottom plate 16 close to one side of the mold cavity, the core pulling slider 18 is installed on the core pulling slider bottom plate 16 in a left-right moving mode, the core pulling slider 18 is installed at one end close to the mold cavity and provided with a body core pulling block 22, an inclined core pulling main supporting rod 20 extending towards the mold cavity is installed at the middle part of one end close to the mold cavity of the core pulling slider bottom plate 16, an inclined guide rod 21 with the downward inclined end part is installed at one side close to the mold cavity of the inclined guide rod 20, the inclined guide rod 21 is provided with an inclined hole for core pulling moving along the inclined guide rod 21, the two core pulling structures are combined to form a set of core pulling structure 3, the space of the mold can, the inclined guide rod 21 can drive the inclined hole core-pulling to move downwards, so that the inclined hole core-pulling is separated from a product, and the integrity of the product is ensured.
As a preferable scheme, the front side and the rear side of the core-pulling slider 18 are respectively provided with a transverse sliding protrusion 23, the other side of the core-pulling side plate 17 is horizontally and transversely provided with an oil cylinder main shaft, the oil cylinder main shaft penetrates through the core-pulling side plate 17 and is connected with the core-pulling slider 18, and the transverse sliding protrusions 23 can position the core-pulling slider 18.
The upper end face of the core-pulling slider bottom plate 16 is embedded with two transverse slide rails 19 which are arranged side by side from front to back, and the core-pulling slider 18 is slidably arranged on the transverse slide rails 19.
As a preferred scheme, the inclined core-pulling structure 7 includes an inclined core-pulling cylinder 24, a core-pulling connecting rod 26 and a hole-site core-pulling fixing block 27, a main shaft end of the inclined core-pulling cylinder 24 is inclined toward the lower part of the mold cavity, the main shaft end of the inclined core-pulling cylinder 24 is connected with the core-pulling connecting rod 26 through a coupling 25, the core-pulling connecting rod 26 is close to one end of the mold cavity and is provided with the hole-site core-pulling fixing block 27, the core-pulling hole-site fixing block 27 is in a rectangular plate-shaped structure perpendicular to the core-pulling connecting rod 26, the hole-site core-pulling fixing block 27 is close to one side of the mold cavity and is provided with a horizontal hole-site core-pulling 28 parallel to the core-pulling connecting rod 26, when the inclined core-pulling structure 7 is operated, the main shaft end of the inclined core-pulling cylinder 24 is contracted to, after the inclined hole core-pulling 29 is positioned at the extreme position, the inclined hole core-pulling is separated from the product, so that the separation of two hole positions is realized.
The upper end of the hole position core pulling fixed block 27 is provided with a chute 30, the middle part of the chute 30 is provided with a core pulling hole 31, and the core pulling 29 with an inclined hole is arranged in the core pulling hole 31.
Preferably, the heat insulation base 2 comprises a base body 32 and a heat insulation plate 33, one side of the base body 32 is butted with the die body 1, and the other side is provided with the heat insulation plate 33.
Examples
During operation, firstly, die assembly is carried out, after die assembly, aluminum liquid flows into a die cavity from an injection gate 4, the product in the die cavity is waited for forming, cooling is carried out after completion, then an inclined core-pulling structure 7 is started, after completion, a die body 1 is opened, a movable die is separated from a fixed die, then core-pulling actions are carried out on a rear side core-pulling 5, an inverted pull-proof core-pulling structure 6 and a single-oil-cylinder two-angle core-pulling structure 3, an ejector plate 15 is started after completion to eject the product, and die assembly is carried out again after cleaning.
The rear side core pulling 5 and single oil cylinder two-angle core pulling structure 3 and the ejector plate 15 can be installed with a positioning structure similar to the vertical positioning rod 14 and the transverse positioning rod 11 on the back-off pull-proof core pulling structure 6, so that interference between the rear side core pulling 5 and the single oil cylinder two-angle core pulling structure 3 and the ejector plate 15 can be effectively avoided, and the product quality is ensured.
Claims (8)
1. The utility model provides a die casting die with prevent to loose core and interfere structure, includes that mould body (1), thermal-insulated base (2) and back-off prevent drawing structure of loosing core (6), its characterized in that: the mold comprises a mold body (1), wherein heat insulation bases (2) are respectively arranged on the upper end face and the lower end face of the mold body (1), a single-oil-cylinder two-angle core pulling structure (3) with a core pulling end inserted into the mold body (1) is arranged on the left side of the mold body (1), an inverted buckle with a core pulling end inserted into the mold body (1) is arranged on the right side of the mold body (1) and a core pulling prevention structure (6) is arranged on the right side of the mold body, an inclined core pulling structure (7) with a core pulling end inserted into the mold body (1) in a downward inclined mode is arranged on the upper portion of the front side of the mold body (1), a rear side core pulling structure (5) is arranged on the rear side of the mold body (1), an injection sprue (4) is vertically arranged in the middle of the heat insulation base (2) on the upper portion of the mold body (1), a mold cavity is arranged in the mold body (1, in slider (8) one end was inserted mould body (1), slider (8) were close to one of die cavity and were served and install core-pulling block (10), core-pulling block (10) downside mid-mounting have back-off locating piece (9), protruding step has been arranged to the one end lower part that back-off locating piece (9) are close to the die cavity, mould body (1) installation back-off prevent arranging recess (36) that match with back-off locating piece (9) on the mounting groove bottom surface of pulling core-pulling structure (6), recess (36) are close to one of die cavity and serve and install lock joint mounting bar (37) with back-off locating piece (9) mutual lock joint.
2. The die-casting die with the structure for preventing the loose core interference as claimed in claim 1, wherein: slider (8) other end forward mounting have vertical locating lever mounting bracket (13) that extend down, locating lever mounting bracket (13) lower extreme transversely install transverse orientation pole (11) that one end inserted mould body (1), mould body (1) lower part in install thimble board (15), thimble board (15) on vertically install vertical locating lever (14) corresponding with transverse orientation pole (11), the upper end and transverse orientation pole (11) downside of vertical locating lever (14) top mutually.
3. The die-casting die with the structure for preventing the loose core interference as claimed in claim 1, wherein: two angles of single cylinder structure (3) of loosing core including loose core curb plate (17), loose core slider (18) and loose core slider bottom plate (16), loose core curb plate (17) be close to one side horizontal installation of die cavity and loose core slider bottom plate (16), loose core slider bottom plate (16) go up to move and control and install slider (18) of loosing core, the one end of loosing core slider (18) being close to the die cavity install body core (22), loose core slider bottom plate (16) be close to die cavity one end mid-mounting have towards die cavity extension loose core main tributary pole (20) to one side, loose core main tributary pole (20) to one side and be close to die cavity one side and install tip oblique guide arm (21) that slopes down, oblique guide arm (21) on install and loose core along the inclined hole that oblique guide arm (.
4. The die-casting mold with the structure for preventing the loose core interference according to claim 3, wherein: the front side and the rear side of the core-pulling sliding block (18) are respectively provided with a transverse sliding bulge (23), the other side of the core-pulling side plate (17) is horizontally and transversely provided with an oil cylinder main shaft, and the oil cylinder main shaft penetrates through the core-pulling side plate (17) and is connected with the core-pulling sliding block (18).
5. The die-casting mold with the structure for preventing the loose core interference according to claim 3, wherein: the core-pulling slide block is characterized in that two transverse slide rails (19) which are arranged side by side in the front and at the back are embedded in the upper end face of the core-pulling slide block bottom plate (16), and the core-pulling slide block (18) is slidably mounted on the transverse slide rails (19).
6. The die-casting die with the structure for preventing the loose core interference as claimed in claim 1, wherein: oblique structure of loosing core (7) loose core including loosing core hydro-cylinder (24), connecting rod (26) and the hole site of loosing core fixed block (27) to one side, the main shaft end of loosing core hydro-cylinder (24) to one side incline towards the die cavity lower part, the main shaft end of loosing core hydro-cylinder (24) to one side links to each other with connecting rod (26) of loosing core through shaft coupling (25), connecting rod (26) of loosing core is close to and installs hole site loose core fixed block (27) on one end of die cavity, hole site loose core fixed block (27) be and loose core connecting rod (26) vertically rectangle platelike structure, hole site loose core fixed block (27) be close to die cavity one side and install and loose core (28) with the horizontal hole.
7. The die-casting mold with the structure for preventing the loose core interference according to claim 6, wherein: the hole site loose core fixed block (27) upper end open and to have chute (30), chute (30) middle part is arranged and is taken out core hole (31), is equipped with inclined hole in the hole of taking out core (31) and takes core (29).
8. The die-casting die with the structure for preventing the loose core interference as claimed in claim 1, wherein: the heat insulation base (2) comprises a base body (32) and a heat insulation plate (33), one side of the base body (32) is in butt joint with the mould body (1), and the heat insulation plate (33) is installed on the other side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910466465.9A CN110102737B (en) | 2019-05-31 | 2019-05-31 | Die casting die with structure for preventing loose core interference |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910466465.9A CN110102737B (en) | 2019-05-31 | 2019-05-31 | Die casting die with structure for preventing loose core interference |
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| CN110102737A CN110102737A (en) | 2019-08-09 |
| CN110102737B true CN110102737B (en) | 2021-01-01 |
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| CN110508783B (en) * | 2019-10-11 | 2020-04-10 | 三门前庭机械科技有限公司 | Die casting die clamping device |
| CN112276038B (en) * | 2020-12-21 | 2021-03-12 | 宁波星源卓镁技术股份有限公司 | Automobile armrest framework mold |
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| CN107364088A (en) * | 2017-08-30 | 2017-11-21 | 上海小糸车灯有限公司 | Prevent the stopping mechanism of moulding sticking to mould when core pulling retreats |
| CN207756880U (en) * | 2017-12-19 | 2018-08-24 | 浙江华朔科技股份有限公司 | A kind of four Directional Core-pulling in Die Casting Die tool mold core |
| CN108097913A (en) * | 2017-12-21 | 2018-06-01 | 宁波辉旺机械有限公司 | A kind of double angle slide block structures of single cylinder |
| CN109702173A (en) * | 2019-02-28 | 2019-05-03 | 浙江华朔科技股份有限公司 | A kind of die casting with double locking member |
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| CN110102737A (en) | 2019-08-09 |
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