CN112387953A - Core pulling method of die casting machine - Google Patents
Core pulling method of die casting machine Download PDFInfo
- Publication number
- CN112387953A CN112387953A CN202011455455.4A CN202011455455A CN112387953A CN 112387953 A CN112387953 A CN 112387953A CN 202011455455 A CN202011455455 A CN 202011455455A CN 112387953 A CN112387953 A CN 112387953A
- Authority
- CN
- China
- Prior art keywords
- core
- die
- mold
- cavity
- movable
- 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.)
- Pending
Links
Images
Classifications
-
- 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
-
- 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
- B22D17/2007—Methods or apparatus for cleaning or lubricating moulds
-
- 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
- B22D17/32—Controlling equipment
Abstract
The invention discloses a core pulling method of a die casting machine, and S1 the spraying mechanism sprays a release agent into a die cavity; s2, sending a mold closing signal by equipment, driving the slide block mold core to enter the mold cavity to be in place by the driving device, simultaneously blowing air into the mold cavity by the spraying mechanism, and resetting the spraying mechanism after the blowing is finished; s3, driving the movable mold core to close the mold by the mold closing mechanism; s4 injecting the raw material into the die cavity by the injection mechanism; s5, driving the movable mold core to open the mold by the mold closing mechanism; s6, the driving device drives the slide block core to reset; s7 taking out the product and carrying out the next circulation. The invention simultaneously carries out the inserting action of the slide block core and the blowing action of the spraying mechanism, integrates the two procedures into one, shortens the core pulling time, does not influence the other actions, can ensure the product quality and shortens the period.
Description
Technical Field
The invention relates to a die, in particular to a core pulling method of a die casting machine.
Background
In the prior art, the cantilever connecting piece of the automobile engine is produced and formed in a die casting machine, core pulling is carried out on the cantilever connecting piece in the process, and the core pulling is formed by utilizing a series of functions of an external raw material feeding system, a release agent spraying system, a blowing system and the die casting machine. But in present production, the time of loosing core is longer for the production cycle of whole connecting piece is prolonged, and in order to shorten the time of loosing core, it is all not ideal to adopt change operation effect such as quick pay-off, quick spraying blow, still can lead to raw materials to pile up, the spraying is inhomogeneous, moisture blows not dry etc. makes the efficiency of loosing core lower, and the quality of connecting piece also can descend.
Disclosure of Invention
In order to solve the defects of the prior art, the invention provides a core pulling method of a die casting machine, which is characterized in that the insertion action of a slide block core and the air blowing action of a spraying mechanism are simultaneously carried out, two procedures are integrated into one procedure, the core pulling time is shortened, the other actions are not influenced, the product quality can be ensured, and the period is shortened.
In order to achieve the technical purpose, the invention adopts the following technical scheme: a core-pulling method of a die casting machine comprises a core-pulling die, a spraying mechanism, a mold assembling mechanism, an injection mechanism, an oil tank, a machine base and a hydraulic transmission system;
the core-pulling die comprises a die core, wherein the die core comprises a movable die core and a fixed die core, and a die cavity is arranged between the movable die core and the fixed die core; one end of the movable mold core is provided with a driving device, the driving device is connected with a slide block mold core in a driving mode, and the slide block mold core extends into the mold cavity;
the method comprises the following steps:
s1, spraying a release agent into the die cavity by the spraying mechanism;
s2, sending a mold closing signal by equipment, driving the slide block mold core to enter the mold cavity to be in place by the driving device, simultaneously blowing air into the mold cavity by the spraying mechanism, and resetting the spraying mechanism after the blowing is finished;
s3, driving the movable mold core to close the mold by the mold closing mechanism;
s4 injecting the raw material into the die cavity by the injection mechanism;
s5, driving the movable mold core to open the mold by the mold closing mechanism;
s6, the driving device drives the slide block core to reset;
s7 taking out the product and carrying out the next circulation.
Furthermore, a slide block slide rail is fixed at the output end of the driving device, the slide rail of the slide block slide rail is fixedly connected with the movable die core, and the slide block die core is fixedly connected with a slide block of the slide block slide rail.
Furthermore, a sliding groove for the movement of the sliding block mold core is formed in the upper side face of one end of the movable mold core, and the sliding groove is communicated with the mold cavity.
Furthermore, the outer parts of the moving die core and the fixed die core are provided with exhaust blocks; the cavity plate is provided with an air hole and a dosing hole, the air hole is communicated with the die cavity and the exhaust block, and the dosing hole is communicated with the die cavity; and the spraying mechanism blows air into the die cavity through the air holes and sprays a release agent into the die cavity through the agent holes.
Further, the core-pulling mold further comprises a movable mold frame and a fixed mold frame, wherein the movable mold core is arranged in the movable mold frame, and the fixed mold core is arranged in the fixed mold frame; the core-pulling die further comprises a bottom plate, an ejector plate is arranged on the bottom plate, a plurality of ejector pins are arranged on the ejector plate and used for ejecting products, and the ejector pins penetrate through the movable die frame and the movable die core to contact the products in the die cavity.
Furthermore, a material barrel cushion block is arranged on the fixed die core, a feeding sprue spreader is arranged at the other end of the movable die core, and the material barrel cushion block is erected on the feeding sprue spreader.
Further, in step S2, the driving device drives the slide core to extend and the spraying mechanism to blow air into the mold cavity, and both actions are performed simultaneously.
Further, in step S2, after either one of the slide core and the coating mechanism is moved to the right position, the electrical signal is normally closed, and after the second movement is moved to the right position, the next movement is performed after waiting for time t.
Further, the spraying mechanism is arranged above the core-pulling mold and is installed in a manipulator mode.
Further, the die assembly mechanism drives the movable die core to move up and down.
In conclusion, the invention achieves the following technical effects:
1. according to the invention, the air blowing action and the core pulling insertion action are simultaneously carried out, the two folding procedures are one, the time of one procedure is saved, and the core pulling time is shortened, so that the production time of the cantilever connecting piece is shortened, and meanwhile, the implementation of other procedures cannot be influenced after the procedures are folded, and the quality of the connecting piece product is ensured;
2. according to the invention, the slide block core is arranged on the core-pulling die and matched with the sliding chute and the oil cylinder on the die, so that the slide block core can move more smoothly and cannot be jammed, and the slide block core and the air blowing action can be carried out simultaneously, so that the whole process can be carried out smoothly;
3. according to the invention, the core-pulling mold is provided with the air blowing hole and the air exhaust block, so that air can be blown into the mold cavity after mold closing, and the cushion and the guarantee can be made while the core-pulling insertion action is performed;
4. according to the invention, the insertion action of the sliding block core and the blowing action of the spraying mechanism are simultaneously carried out, and two procedures are integrated into one, so that the core pulling time is shortened, the other actions are not influenced, the product quality can be ensured, and the period is shortened;
5. the invention efficiently connects the die casting machine and the auxiliary equipment of the die casting machine, and reduces the waste of the production period.
Drawings
FIG. 1 is a schematic view of an overall state of a loose core provided by an embodiment of the invention;
FIG. 2 is an external schematic view of a core mold;
FIG. 3 is an exploded schematic view of FIG. 2;
FIG. 4 is a schematic view of a mold insert;
fig. 5 is a schematic cross-sectional view of fig. 2.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Example (b):
the existing core pulling sequence is as follows: the spraying mechanism sprays the release agent → the spraying mechanism blows air, dries water on the surface of the die cavity and then resets → the equipment die assembly signal is sent → the neutron core puller starts to act, the sliding block core is driven to enter the die cavity in place → the die assembly → the injection mechanism acts to inject raw materials into the die cavity → the die opening → the neutron core puller, so that the sliding block core retracts and resets → the ejection mechanism acts, and the product is taken out and enters the next cycle.
As shown in fig. 1, the method adopted by the present invention involves an apparatus comprising: the core-pulling die comprises a core-pulling die 1, a spraying mechanism 2, a mold assembling mechanism 3, an injection mechanism 4, an oil tank, a machine base 5 and a hydraulic transmission system 6. The core-pulling die 1 is used for pulling a core of a sliding block core, the spraying mechanism 2 is used for spraying a release agent into the core-pulling die 1 and drying a die cavity, the release agent is used for separating a product from the die, the die-closing mechanism 3 is used for controlling the die opening and die closing of the movable die for driving the core-pulling die 1, the injection mechanism 4 is used for injecting a molten metal raw material into the die cavity to fill and form a casting, and the hydraulic transmission system 6 pushes a moving part of the die-casting machine to run.
As shown in fig. 2 and 3, the core-pulling mold 1 includes a mold core 15, the mold core 15 includes a movable mold core 155 and a fixed mold core 158, and a mold cavity is disposed between the movable mold core 155 and the fixed mold core 158; the die comprises a movable die frame 14, a fixed die frame 16, a movable die core 155 and a fixed die core 158, wherein the movable die core is arranged in the movable die frame 14, the fixed die core 158 is arranged in the fixed die frame 16, the die further comprises a bottom plate 11, an ejector plate 12 is arranged on the bottom plate 11, a plurality of ejector pins 121 are arranged on the ejector plate 12, and the ejector pins 121 penetrate through the movable die frame 14 and the movable die core 155 to contact products in a die cavity. And also comprises mould feet 13.
As shown in fig. 4, a driving device 151 is disposed at one end of the movable mold core 155, in this embodiment, the driving device 151 employs an oil cylinder, the driving device 151 is drivingly connected to a slide core 154, specifically, a slide rail 153 is fixed to an output end of the driving device 151, a slide rail of the slide rail 153 is fixedly connected to the movable mold core 155, the slide core 154 is fixedly connected to a slide of the slide rail 153, and it is ensured that the slide core 154 moves smoothly, and the slide core 154 is driven by the oil cylinder to move linearly to extend into the mold cavity or leave the mold cavity, thereby providing a guarantee for simultaneous actions of air blowing and core pulling insertion after mold closing. Specifically, a sliding groove (not shown) for the sliding block mold core 154 to move is formed in an upper side surface of one end portion of the moving mold core 155, the sliding groove is communicated with the mold cavity, and meanwhile, a sliding groove corresponding to the sliding groove is formed in a lower side surface of the fixed mold core 158, so that a moving space and a moving track are provided for the sliding block mold core 154, and the sliding block mold core 154 can move smoothly and accurately without being stuck.
As shown in fig. 4 and 5, the other end of the movable mold core 155 is provided with a material inlet tap 157, the material inlet tap 157 is divided into 2 parts and fixed to the movable mold core 155 and the fixed mold core 158, in addition, the fixed mold core 158 is provided with a material barrel cushion block 159, and the material barrel cushion block 159 is erected on the material inlet tap 157 to facilitate material inlet of the material barrel. The charging barrel is connected with an injection mechanism 4, and the injection mechanism 4 injects raw materials into the die cavity through the charging barrel and performs die-casting forming.
As shown in fig. 3, the exterior of the movable mold core 155 and the fixed mold core 158 is provided with an exhaust block 156; the core insert 158 is provided with an air hole 17, and the air hole 17 is communicated with the mold cavity and the exhaust block 156. When in use, the air hole 71 is used for introducing air into the cavity by the spraying mechanism 2 to blow the moisture in the cavity for drying, and the exhaust block 156 is used for exhausting air. Meanwhile, the fixed mold core 158 is also provided with a material preparation hole 18, and the spraying mechanism 2 sprays the release agent into the mold cavity through the material preparation hole 19. After the die assembly, the air hole 71 and the material hole 18 can ensure that an external spraying system can work smoothly, and guarantee the simultaneous actions of air blowing and core pulling insertion after the die assembly.
As shown in fig. 1, the spraying mechanism 2 is disposed above the core back mold 1, and the spraying mechanism 2 is mounted by a manipulator. The mold closing mechanism 3 drives the movable mold core 155 to move up and down.
The method comprises the following steps:
s1, spraying a release agent into the die cavity by the spraying mechanism 2; specifically, the nozzle of the spray mechanism 2 seals the connecting agent hole 18 and sprays a release agent for separating the product from the mold into the cavity.
S2, the equipment sends a mold closing signal, the driving device 151 drives the slide block mold core 154 to enter the mold cavity in place, meanwhile, the spraying mechanism 2 blows air into the mold cavity, and the spraying mechanism 2 resets after blowing is finished; specifically, while the driving device 151 operates, the spraying mechanism 2 starts blowing air to blow the surface of the mold cavity, and then resets.
S3, the mold closing mechanism 3 drives the movable mold core 155 to close the mold;
s4 the injection mechanism 4 injects the raw material into the cavity; specifically, the injection mechanism 4 injects the raw material into the barrel, the barrel transfers the raw material into the feeding material spreader cone 157, and the raw material is input into the die cavity for molding through the spreading of the feeding material spreader cone 157.
S5, the mold closing mechanism 3 drives the movable mold core 155 to open the mold;
s6, the driving device 151 drives the slider core 154 to reset; specifically, the slipper core 154 is repositioned away from the mold cavity to facilitate product removal.
S7, taking out the product and carrying out the next cycle; specifically, the ejector pins 121 are pushed up to eject the product, and after the product is taken out, the step S1 is repeated to perform the next cycle.
In step S2, the driving device 151 causes the slide core 154 to extend and the coating mechanism 2 blows air into the cavity, and both operations are performed simultaneously. In this embodiment, the driving device 151 operates simultaneously with the coating machine 2, one pushes the slide core 154 into the cavity, and one blows air into the cavity, thereby performing 2 processes simultaneously.
In step S2, after either the slide core 154 or the coating mechanism 2 is operated to the right, the electric signal is normally closed, and after the second operation is operated to the right, the next operation is performed after waiting for time t. In this example, t is 0.1 second. In the prior art, the next action is performed after each step is in place under the condition of ensuring the safety of equipment, in the embodiment, the sliding block core inserting and spraying mechanism 2 degasses and simultaneously acts, in order to ensure the safety and prevent misoperation, an electrical system carries out the next action after any one of two actions is in place and an electrical signal is in a normally closed state, and after the second action is in place and the confirmation time is 0.1 second, the confirmation of the action of the electrical signal of the equipment is ensured, and the misoperation of the electrical signal of the equipment is prevented.
The sequence of the invention is as follows: the spraying mechanism sprays a release agent → the equipment mold closing signal is sent → the neutron core puller (namely, the core pulling mold 1) starts to act, so that the slide block core enters the mold cavity in place, the spraying mechanism blows air simultaneously when the equipment signal is sent, water on the surface of the mold resets after being dried, the mold closes → the mold, the injection mechanism acts to inject raw materials into the mold cavity → the mold opens, the core puller acts, so that the slide block core returns in place → the ejection mechanism acts, and a product is taken out and enters the next cycle.
According to the invention, by adjusting the action sequence of the mold sliding block core, the mold sliding block core starts to move while the spraying mechanism blows air after the release agent is sprayed, and the core pulling time of the sliding block and the air blowing are simultaneously moved in the whole production period, so that the time of the whole production beat is shortened, for example, the production period of each mold of 2 core pulling oil cylinders of 400T equipment is originally 48 seconds, the production period of each mold of 2 core pulling oil cylinders of 400T equipment is 44 seconds after the modification is finished, and the whole production period is saved by 8%.
In addition, the device also comprises an electrical system which is used for sending a mold closing signal, a mold opening signal, a spraying signal, a blowing signal, a core pulling signal, an injection signal and the like, and the electrical system is electrically connected with the equipment in a control way.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention in any way, and all simple modifications, equivalent variations and modifications made to the above embodiments according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.
Claims (10)
1. A core pulling method of a die casting machine is characterized by comprising a core pulling die (1), a spraying mechanism (2), a mold closing mechanism (3), an injection mechanism (4), an oil tank, a machine base (5) and a hydraulic transmission system (6);
the core-pulling die (1) comprises a die core (15), the die core (15) comprises a movable die core (155) and a fixed die core (158), and a die cavity is arranged between the movable die core (155) and the fixed die core (158); one end of the movable mould core (155) is provided with a driving device (151), the driving device (151) is in driving connection with a sliding block mould core (154), and the sliding block mould core (154) extends into the mould cavity;
the method comprises the following steps:
s1, spraying a release agent into the die cavity by the spraying mechanism (2);
s2, sending a mold closing signal by equipment, driving the slide block mold core (154) to enter the mold cavity to be in place by the driving device (151), blowing air into the mold cavity by the spraying mechanism (2), and resetting the spraying mechanism (2) after blowing air is finished;
s3, the mold closing mechanism (3) drives the movable mold core (155) to close the mold;
s4 the injection mechanism (4) injecting the raw material into the cavity;
s5, the mold closing mechanism (3) drives the movable mold core (155) to open the mold;
s6, the driving device (151) drives the slide block core (154) to reset;
s7 taking out the product and carrying out the next circulation.
2. The die casting machine core pulling method according to claim 1, characterized in that: the output end of the driving device (151) is fixed with a slide block slide rail (153), the slide rail of the slide block slide rail (153) is fixedly connected with the movable mould core (155), and the slide block mould core (154) is fixedly connected with the slide block of the slide block slide rail (153).
3. The die casting machine core pulling method according to claim 2, characterized in that: the upper side surface of one end part of the movable mould core (155) is provided with a sliding groove for the movement of the sliding block mould core (154), and the sliding groove is communicated with the mould cavity.
4. The die casting machine core pulling method according to claim 3, characterized in that: the outer parts of the movable mould core (155) and the fixed mould core (158) are provided with exhaust blocks (156); the fixed die core (158) is provided with an air hole (17) and a material mixing hole (18), the air hole (17) is communicated with the die cavity and the exhaust block (156), and the material mixing hole (18) is communicated with the die cavity; the spraying mechanism (2) blows air into the die cavity through the air holes (17), and sprays release agent into the die cavity through the agent holes (18).
5. The die casting machine core pulling method according to claim 4, characterized in that: the core-pulling die (1) further comprises a movable die frame (14) and a fixed die frame (16), wherein the movable die core (155) is arranged in the movable die frame (14), and the fixed die core (158) is arranged in the fixed die frame (16); loose core mould (1) still includes bottom plate (11), be equipped with thimble board (12) on bottom plate (11), be equipped with a plurality of thimble (121) on thimble board (12), thimble (121) are used for ejecting product, thimble (121) pass movable mould frame (14) movable mould benevolence (155) contact the product in the mould cavity.
6. The die casting machine core pulling method according to claim 5, characterized in that: the die core (158) is provided with a charging barrel cushion block (159), the other end of the movable die core (155) is provided with a feeding sprue spreader (157), and the charging barrel cushion block (159) is erected on the feeding sprue spreader (157).
7. The die casting machine core pulling method according to claim 1, characterized in that: in step S2, the driving device (151) drives the slide core (154) to extend and the spraying mechanism (2) blows air into the mold cavity, and the two actions are performed simultaneously.
8. The die casting machine core pulling method according to claim 7, characterized in that: in step S2, when either one of the slide core (154) and the coating mechanism (2) is in place, the electrical signal is normally closed, and when the second action is in place, the next action is performed after waiting for t time.
9. The die casting machine core pulling method according to claim 1, characterized in that: the spraying mechanism (2) is arranged above the core-pulling die (1), and the spraying mechanism (2) is installed in a manipulator mode.
10. The die casting machine core pulling method according to claim 9, characterized in that: the mould closing mechanism (3) drives the movable mould core (155) to move up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011455455.4A CN112387953A (en) | 2020-12-10 | 2020-12-10 | Core pulling method of die casting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011455455.4A CN112387953A (en) | 2020-12-10 | 2020-12-10 | Core pulling method of die casting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112387953A true CN112387953A (en) | 2021-02-23 |
Family
ID=74625161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011455455.4A Pending CN112387953A (en) | 2020-12-10 | 2020-12-10 | Core pulling method of die casting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112387953A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113102720A (en) * | 2021-03-30 | 2021-07-13 | 宁波金亿卡特勒车业有限公司 | Die casting machine and die casting method |
| CN114012061A (en) * | 2021-11-15 | 2022-02-08 | 东莞市潜翔通讯器材有限公司 | Modular die-casting method and die-casting equipment for mobile phone middle plate |
-
2020
- 2020-12-10 CN CN202011455455.4A patent/CN112387953A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113102720A (en) * | 2021-03-30 | 2021-07-13 | 宁波金亿卡特勒车业有限公司 | Die casting machine and die casting method |
| CN114012061A (en) * | 2021-11-15 | 2022-02-08 | 东莞市潜翔通讯器材有限公司 | Modular die-casting method and die-casting equipment for mobile phone middle plate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112387953A (en) | Core pulling method of die casting machine | |
| KR100808294B1 (en) | Method and apparatus for spraying release agent in die casting machine | |
| KR100802481B1 (en) | The injection-moulding eguipment | |
| US5731013A (en) | Reconfigurable mold having travelling separator assist | |
| CN203254617U (en) | Injection mold capable of automatically pulling core through ejection | |
| CN113787667A (en) | Adopt rubber production of vapour-pressure type drawing of patterns to use device of moulding plastics | |
| US5711971A (en) | Reconfigurable mold having traveling ejector system | |
| JPH11506061A (en) | Injection molding method and apparatus for selected parts | |
| CN214442938U (en) | Core-pulling die and core-pulling equipment of die casting machine | |
| CN202491380U (en) | Injection molding three-plate mold remnant automatic ejection structure and three-plate mold with same | |
| CN207889073U (en) | A kind of secondary ejection mold with elastic vertical top | |
| EP0443287B1 (en) | A horizontally parted molding machine of stationary drag core box type | |
| US6179599B1 (en) | Sealing ejector pin | |
| CN205614939U (en) | Injection mold | |
| CN108176826B (en) | Riser double-station wet forming machine and riser manufacturing process | |
| CN212042565U (en) | Sand mould molding device for casting wear-resistant hammer head | |
| JP2667996B2 (en) | Injection mold equipment | |
| CN217414774U (en) | Injection mold with material ejection head | |
| JP2003112245A (en) | Metal injection molding method and metal injection molding device | |
| KR200280828Y1 (en) | A metallic mold having slider with injection gateway function | |
| CN219820512U (en) | Structure for preventing thimble from colliding with die during glue feeding on slide | |
| CN218256543U (en) | Reticulate pattern hole double ejector plate rigidity ejection mechanism of automobile door plate injection mold | |
| CN218966065U (en) | Mold clamping device for injection molding machine | |
| JP2667995B2 (en) | Injection mold equipment | |
| CN219213972U (en) | Secondary ejection die for injection molding product |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |