CN212857691U - Core pulling structure with extrusion action - Google Patents
Core pulling structure with extrusion action Download PDFInfo
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- CN212857691U CN212857691U CN202021143071.4U CN202021143071U CN212857691U CN 212857691 U CN212857691 U CN 212857691U CN 202021143071 U CN202021143071 U CN 202021143071U CN 212857691 U CN212857691 U CN 212857691U
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Abstract
The utility model relates to a take structure of loosing core of extrusion action, including cover half frame, cover half core and die cavity, cover half frame up end middle part embedding install the cover half core, cover half core middle part arranged the die cavity, cover half core rear side install two exhaust pieces side by side, cover half core right rear end arranged the mounting groove, the mounting groove in install the extrusion subassembly of loosing core, the extrusion subassembly of loosing core include hydro-cylinder body, signal pole and core pin of loosing core, hydro-cylinder body internally arranged have first cavity and second cavity, first cavity and second cavity in install back hydro-cylinder piston and preceding hydro-cylinder piston respectively. The utility model has the characteristics of simple structure, practicality are good, convenient operation, improvement product precision etc.
Description
Technical Field
The utility model relates to a die casting die technical field of loosing core especially relates to a take structure of loosing core of extrusion action.
Background
The common core-pulling structure is a necessary tool for auxiliary molding of a part which is difficult to mold of a product, and the common actions of the common core-pulling structure only comprise the operations of extracting a mold cavity and mixing and inserting the mold cavity, but the interiors of certain products are relatively complex, the wall thickness of the products is too large, and a central position of the products is easy to generate a gas shrinkage cavity.
Disclosure of Invention
The utility model aims to solve the technical problem that a take core pulling structure of extrusion action is provided, have that simple structure, practicality are good, convenient operation, improve characteristics such as product precision.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a take structure of loosing core of extrusion action, includes cover half frame, cover half core and die cavity, cover half frame up end middle part embedding install the cover half core, cover half core middle part arrange the die cavity, cover half core rear side install two exhaust pieces side by side, cover half core right rear end arrange the mounting groove, the mounting groove in installation extrusion subassembly of loosing core, the extrusion subassembly of loosing core include hydro-cylinder body, signal pole and core pin of loosing core, hydro-cylinder body inside arrange first cavity and second cavity, first cavity and second cavity in install back hydro-cylinder piston and front hydro-cylinder piston respectively, back hydro-cylinder piston and front hydro-cylinder piston on install back hydro-cylinder pull rod and front hydro-cylinder pull rod respectively, back hydro-cylinder pull rod and front hydro-cylinder pull rod be in coaxial state, front hydro-cylinder pull rod on install the core pin of inserting die cavity, the lower side of the oil cylinder body is provided with a signal rod.
And sealing covers are uniformly arranged on the outlet ends of the first cavity and the second cavity.
The core pulling pin is characterized in that a core pulling pin installation sleeve is installed at the butt joint end of the core pulling pin and the front oil cylinder pull rod, and the core pulling pin installation sleeve is in butt joint with the end part of the front oil cylinder pull rod through a pull rod hoop.
The inclined surface of the mounting groove for mounting the extrusion core pulling assembly is provided with a guide sleeve pressing plate, and the fixed die core is internally provided with a guide sleeve sleeved on the core pulling pin.
And the extrusion core pulling assembly is provided with an oil pipe assembly corresponding to the first cavity and the second cavity.
Has the advantages that: the utility model relates to a take core pulling structure of extrusion action, specific beneficial effect as follows:
(1) the cylinder body structure is divided into the first cavity and the second cavity, so that the extrusion core-pulling assembly can perform three actions of core insertion, extrusion and core pulling, a gas shrinkage hole in a product is avoided, the quality of the product is ensured, and the precision of the product is improved;
(2) the signal rod is designed to control input and output of hydraulic oil in the first cavity and the second cavity, so that automation of operation is realized, and continuity of action is ensured.
Drawings
FIG. 1 is a top view of the present invention mounted on a stationary mold frame;
FIG. 2 is a full sectional view of the extruded loose core assembly of the present invention;
fig. 3 is a cross-sectional view of the cylinder body according to the present invention.
The figure is as follows: 1. the core pulling device comprises a fixed die frame, 2, a fixed die core, 3, a die cavity, 4, a mounting groove, 5, an exhaust block, 6, an extrusion core pulling assembly, 7, an oil pipe assembly, 8, an oil cylinder body, 9, a first cavity, 10, a second cavity, 11, a rear oil cylinder piston, 12, a rear oil cylinder pull rod, 13, a sealing cover, 14, a front oil cylinder piston, 15, a front oil cylinder pull rod, 16, a signal rod, 17, a pull rod holding ring, 18, a core pulling pin mounting sleeve, 19, a guide sleeve pressing plate, 20, a guide sleeve, 21 and a core pulling pin.
Detailed Description
The present invention will be further described 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. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.
The utility model relates to a loose core structure with extrusion action, as shown in figures 1-3, comprising a fixed die frame 1, a fixed die core 2 and a die cavity 3, wherein the fixed die core 2 is embedded and installed in the middle of the upper end surface of the fixed die frame 1, the die cavity 3 is arranged in the middle of the fixed die core 2, two exhaust blocks 5 are installed side by side at the rear side of the fixed die core 2, an installation groove 4 is arranged at the right rear end of the fixed die core 2, an extrusion loose core assembly 6 is installed in the installation groove 4, the extrusion loose core assembly 6 comprises an oil cylinder body 8, a signal rod 16 and a loose core pin 21, a first cavity 9 and a second cavity 10 are arranged in the oil cylinder body 8, a rear oil cylinder piston 11 and a front oil cylinder piston 14 are respectively installed in the first cavity 9 and the second cavity 10, a rear oil cylinder pull rod 12 and a front oil cylinder pull rod 15 are respectively installed on the rear oil cylinder piston 11 and the front oil cylinder piston 14, the rear oil cylinder pull rod 12 and the front oil cylinder pull rod 15 are in a coaxial state, a core pulling pin 21 inserted into a die cavity is installed on the front oil cylinder pull rod 15, and a signal rod 16 is installed on the lower side of the oil cylinder body 8.
And sealing covers 13 are respectively arranged at the outlet ends of the first cavity 9 and the second cavity 10.
The core pulling pin mounting sleeve 18 is mounted at the butt joint end of the core pulling pin 21 and the front oil cylinder pull rod 15, and the core pulling pin mounting sleeve 18 is in butt joint with the end part of the front oil cylinder pull rod 15 through the pull rod embracing ring 17.
The inclined plane of the installation groove 4 for installing the extrusion core pulling component 6 is provided with a guide sleeve pressing plate 19, and the fixed die core 2 is internally provided with a guide sleeve 20 sleeved on a core pulling pin 21.
And an oil pipe assembly 7 corresponding to the first cavity 9 and the second cavity 10 is arranged on the extrusion core-pulling assembly 6.
After the die assembly is completed, the core inserting action is carried out, when the core inserting action is operated, the die casting machine gives out an instruction, hydraulic oil is input into the first cavity 9 from the oil pipe assembly 7 and pushes the rear oil cylinder piston 11, the rear oil cylinder piston 11 pushes the rear oil cylinder pull rod 12, the rear oil cylinder pull rod 12 pushes the front oil cylinder piston 14, the front oil cylinder piston 14 pushes the front oil cylinder pull rod 15, so that the core pulling pin 21 is inserted into the die cavity 3, the signal rod 16 sends out a stop signal after the core pulling pin is inserted in place, the hydraulic oil stops supplying oil, and the core.
After the core inserting action is finished, the die starts to be injected and filled, when a product in a die cavity is about to be cooled, the die casting machine sends a command, hydraulic oil is input into the second cavity 10 through the oil pipe assembly 7 and pushes the front oil cylinder piston 14 to push the front oil cylinder pull rod 15, so that the core pulling pin 21 carries out extrusion operation, after the specified position is reached, the signal rod 16 gives a stop signal, the hydraulic oil stops supplying oil, and the extrusion action is finished.
And after the die casting is finished, core pulling operation is carried out, the operation is started before the die opening of the movable die and the fixed die, hydraulic oil in the first cavity 9 and the second cavity 10 is output through the oil pipe assembly 7, the rear oil cylinder piston 11 and the front oil cylinder piston 14 are recovered, after the initial state is recovered, the signal rod 16 gives a stop signal, the oil supply of the hydraulic oil is stopped, and the core pulling action is finished.
Claims (5)
1. The utility model provides a take structure of loosing core of extrusion action, includes cover half frame (1), cover half core (2) and die cavity (3), cover half frame (1) up end middle part embedding install cover half core (2), cover half core (2) middle part arranged die cavity (3), cover half core (2) rear side install two exhaust piece (5), its characterized in that side by side: a mounting groove (4) is arranged at the right rear end of the fixed die core (2), an extrusion core-pulling assembly (6) is mounted in the mounting groove (4), the extrusion core-pulling assembly (6) comprises an oil cylinder body (8), a signal rod (16) and a core-pulling pin (21), a first cavity (9) and a second cavity (10) are arranged in the oil cylinder body (8), a rear oil cylinder piston (11) and a front oil cylinder piston (14) are respectively arranged in the first cavity (9) and the second cavity (10), a rear oil cylinder pull rod (12) and a front oil cylinder pull rod (15) are respectively arranged on the rear oil cylinder piston (11) and the front oil cylinder piston (14), the rear oil cylinder pull rod (12) and the front oil cylinder pull rod (15) are in a coaxial state, the front oil cylinder pull rod (15) is provided with a core pulling pin (21) inserted into the die cavity, and the lower side of the oil cylinder body (8) is provided with a signal rod (16).
2. The core pulling structure with the extrusion action according to claim 1, characterized in that: and sealing covers (13) are respectively arranged at the outlet ends of the first cavity (9) and the second cavity (10).
3. The core pulling structure with the extrusion action according to claim 1, characterized in that: the core pulling pin mounting structure is characterized in that a core pulling pin mounting sleeve (18) is mounted at the butt joint end of the core pulling pin (21) and the front oil cylinder pull rod (15), and the core pulling pin mounting sleeve (18) is in butt joint with the end part of the front oil cylinder pull rod (15) through a pull rod hoop (17).
4. The core pulling structure with the extrusion action according to claim 1, characterized in that: the mould core pulling device is characterized in that a guide sleeve pressing plate (19) is installed on the inclined plane of the installation groove (4) for installing the extrusion core pulling component (6), and a guide sleeve (20) sleeved on a core pulling pin (21) is installed in the fixed mould core (2).
5. The core pulling structure with the extrusion action according to claim 1, characterized in that: and an oil pipe assembly (7) corresponding to the first cavity (9) and the second cavity (10) is arranged on the extrusion core-pulling assembly (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021143071.4U CN212857691U (en) | 2020-06-19 | 2020-06-19 | Core pulling structure with extrusion action |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021143071.4U CN212857691U (en) | 2020-06-19 | 2020-06-19 | Core pulling structure with extrusion action |
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| Publication Number | Publication Date |
|---|---|
| CN212857691U true CN212857691U (en) | 2021-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021143071.4U Active CN212857691U (en) | 2020-06-19 | 2020-06-19 | Core pulling structure with extrusion action |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115780767A (en) * | 2023-01-10 | 2023-03-14 | 宁波瑞立机械有限公司 | Be used for fashioned die casting die of light truck gearbox front end housing |
-
2020
- 2020-06-19 CN CN202021143071.4U patent/CN212857691U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115780767A (en) * | 2023-01-10 | 2023-03-14 | 宁波瑞立机械有限公司 | Be used for fashioned die casting die of light truck gearbox front end housing |
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