CN218693733U

CN218693733U - Demoulding mechanism of whole circle indent die casting

Info

Publication number: CN218693733U
Application number: CN202222566222.2U
Authority: CN
Inventors: 朱长强
Original assignee: Shanghai Yufei Metal Products Co ltd
Current assignee: Shanghai Yufei Metal Products Co ltd
Priority date: 2022-09-28
Filing date: 2022-09-28
Publication date: 2023-03-24
Anticipated expiration: 2032-09-28

Abstract

The utility model discloses a demoulding mechanism of whole circle indent die casting, insert including mold core main part and cover half, the movable mould is installed in the outside of mold core main part and is inserted, be provided with first spout between the both sides of mold core main part and the movable mould are inserted, equal sliding connection has oblique kicking block in two first spouts, the top both sides that the movable mould was inserted all are provided with the second spout, the mold core main part both sides of second spout equidirectional department are provided with the movable groove, equal sliding connection has the inner shoe in two second spouts, the inner shoe comprises L type flat shoe and oblique lug, oblique lug is located the top of L type flat shoe, L type flat shoe is located the inner shoe and one end is located the movable groove inside, the bottom center that the cover half was inserted is provided with the die casting die cavity, the both sides in die cavity are provided with the oblique groove with oblique lug adaptation, through the cooperation of oblique kicking block and inner shoe, can accomplish the quick of the protruding or sunken die casting of in-band inboard whole circle, the drawing of patterns is reliable, thereby reduce production man-hour and processing cost.

Description

Demoulding mechanism of whole circle indent die casting

Technical Field

The utility model relates to a machining equipment technical field, concretely relates to demoulding mechanism of whole circle indent die casting.

Background

The die casting is a part for pressure casting, which is a pressure casting mechanical die casting machine provided with a casting die, and the metal such as copper, zinc, aluminum or aluminum alloy which is heated to be liquid is poured into a feeding port of the die casting machine, and the copper, zinc, aluminum parts or aluminum alloy parts with the shape and the size limited by the die are cast by the die casting machine;

some die-cast parts with similar structures have the shapes of full circles of inner convex or concave parts, such as internal threads, concave parts, inner convex parts and the like. When designing and manufacturing the die-casting die, the smooth and reliable demoulding problem of the die-casting piece must be properly solved, otherwise, the subsequent reprocessing of the semi-finished product of the die-casting piece is needed, thereby greatly increasing the production working hour and the processing cost.

Therefore, it is necessary to provide a demolding mechanism for a full-circle female die casting to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a demoulding mechanism of whole circle indent die casting to solve the above-mentioned weak point in the technique.

In order to achieve the above object, the present invention provides the following technical solutions:

the die release mechanism comprises a die core main body and a fixed die insert embedded into a fixed die plate of a die casting die, wherein a moving die insert embedded into a moving die plate of the die casting die is installed on the outer side of the die core main body, first sliding grooves are formed in two sides of the die core main body and the moving die insert, oblique jacking blocks are connected in the first sliding grooves in a sliding mode, second sliding grooves are formed in the other two sides of the top of the moving die insert, movable grooves are formed in the two sides of the die core main body, located in the same direction, of the second sliding grooves, inner sliding blocks are connected in the second sliding grooves in a sliding mode, each inner sliding block is composed of an L-shaped flat sliding block and an oblique lug, the oblique lug is located at the top of the L-shaped flat sliding block, the L-shaped flat sliding block is located in the inner sliding groove, one end of the L-shaped flat sliding block is located in the movable groove, a die casting cavity is formed in the center of the bottom of the insert, and oblique grooves matched with the oblique jacking blocks are formed in the two sides of the die casting cavity.

Preferably, two the outer lane of oblique kicking block and the outside of two L type smooth blocks all are provided with arc shaping arch with horizontal position department, the kicking block top is parallel with mold core main part top, L type smooth block inserts activity groove and second spout, and when other end lateral surface and mold core main part lateral surface were in same arc, two the arc shaping arch of oblique kicking block and two L type smooth blocks formed complete circle type structure.

Preferably, the vertical section of the second sliding chute is of a T-shaped structure, and the vertical section of the L-shaped horizontal sliding block of the inner sliding block is of a T-shaped structure matched with the second sliding chute.

Preferably, the outside one side of piece is the circular arc type structure to one side, the medial surface of piece is the inclined plane structure to one side, the mold core main part is close to the both sides outer wall of two oblique kicking blocks for with the inclined plane structure of piece adaptation to one side, the both sides outer wall that the mold core main part is close to two interior sliders is the circular arc type structure the same with the circular arc surface diameter of piece to one side, the lateral surface that the flat slider of L type is close to mold core main part one side is the circular arc type structure the same with the circular arc surface diameter of mold core main part.

Preferably, two the thimble is all installed to the bottom of oblique kicking block, the top of thimble is provided with the chuck, the bottom of oblique kicking block is provided with T type groove, the chuck is located T type inslot portion.

In the technical scheme, the utility model provides a technological effect and advantage:

the die casting piece with the inner side complete circle of bulges or depressions can be quickly and reliably demoulded by matching the inclined ejector block and the inner slide block, so that the production working hour and the processing cost are reduced; when the die-casting is carried out, the movable mould and the fixed mould are closed, the movable mould insert moves upwards, the oblique groove can be aligned with the oblique convex block and inserted, along with the upward movement of the movable mould insert, the L-shaped flat sliding block can be moved in the second sliding groove due to the fact that the oblique convex block is stirred by the oblique groove, outward expansion core movement is completed, after the movable mould insert completely presses upwards, the oblique sliding block expands outwards under the combined action of the reset mechanism and the ejector pin, the outer side face of one end of the L-shaped flat sliding block, the outer side face of the mould core main body and the outer side face of the oblique ejector block form a cylindrical structure together, a ring-shaped structure is formed by the plurality of arc-shaped protrusions, and the arc-shaped protrusions of the ring correspond to the concave structure of the die-casting. After the die-casting molding is completed, the movable die insert moves downwards to be separated from the fixed die insert and is synchronous with the die opening action, and the inclined convex block on the L-shaped flat sliding block completes the inward core pulling action under the drawing action of the inclined groove on the fixed die insert. After the movable die part (including the movable die insert) stops, the ejector pins push the inclined ejector blocks to move upwards and inwards in the first sliding grooves, and when the inclined ejector blocks finish core pulling inwards, the movable die insert and the die core main body are ejected out of the die casting by the upper planes of the inclined ejector blocks. The core pulling and the rapid demoulding are completely realized, and the practicability is high.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.

FIG. 1 is a perspective view of the structure of the utility model with the cover half insert removed integrally;

fig. 2 is an overall front plan sectional view of the present invention;

FIG. 3 is an overall side plan sectional view of the present invention;

fig. 4 is a perspective view of the thimble structure of the present invention.

Description of reference numerals:

1. a mold core main body; 2. an inner slide block; 3. a slanted ejecting block; 4. a movable die insert; 5. a fixed die insert; 6. a thimble; 7. forming a bulge in an arc shape; 11. a movable groove; 21. an L-shaped flat slider; 22. an oblique projection; 41. a first chute; 42. a second chute; 51. a die-casting cavity; 52. an oblique groove; 61. a chuck.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.

The utility model provides a demoulding mechanism of whole circle indent die casting as shown in fig. 1-4, including mold core main part 1 and the cover half insert 5 of inlaying die casting die fixed die plate, the movable mould insert 4 of inlaying die casting die movable mould board is installed in the outside of mold core main part 1, be provided with first spout 41 between the both sides of mold core main part 1 and the movable mould insert 4, equal sliding connection has oblique kicking block 3 in two first spouts 41, the top of movable mould insert 4 all is provided with second spout 42 in addition both sides, the mold core main part 1 both sides of second spout 42 equidirectional department are provided with movable groove 11, equal sliding connection has interior slider 2 in two second spouts 42, interior slider 2 comprises L type flat slider 21 and oblique lug 22, oblique lug 22 is located the top of L type flat slider 21, L type flat slider 21 is located interior slider 2 and one end is located inside movable groove 11, the bottom center of cover half insert 5 is provided with die casting die cavity 51, die cavity 51's both sides are provided with oblique lug 22 adaptation slant groove 52, through the cooperation of oblique kicking block 3 and interior slider 2, can accomplish the whole circle in-time or the reliable reduction die casting cost, thereby the quick production cost.

Further, in the above technical scheme, the outer rings of the two inclined ejecting blocks 3 and the outer sides of the two L-shaped flat sliders 21 are provided with arc-shaped forming protrusions 7 at the same horizontal plane position, the top of the inclined ejecting block 3 is parallel to the top of the mold core main body 1, the L-shaped flat slider 21 is inserted into the movable groove 11 and the second sliding groove 42, and when the outer side surface of the other end is on the same arc line with the outer side surface of the mold core main body 1, the two inclined ejecting blocks 3 and the arc-shaped forming protrusions 7 of the two L-shaped flat sliders 21 form a complete ring-shaped structure;

specifically, the arc-shaped forming protrusion 7 corresponds to a concave structure of the die casting, and if the inside of the die casting is a convex structure, the arc-shaped forming protrusion 7 is replaced by an arc-shaped forming groove.

Further, in the above technical solution, the vertical section of the second sliding groove 42 is a T-shaped structure, and the vertical section of the L-shaped horizontal sliding block 21 of the inner sliding block 2 is a T-shaped structure adapted to the second sliding groove 42;

specifically, the second sliding groove 42 can be stably moved in the second sliding groove 42 along the horizontal direction through the T-shaped structure, and cannot be separated from the inside of the second sliding groove 42, so that the stability is increased.

Further, in the above technical solution, one surface of the outer side of the inclined ejecting block 3 is an arc structure, the inner side surface of the inclined ejecting block 3 is an inclined surface structure, the outer walls of the two sides of the mold core main body 1 close to the two inclined ejecting blocks 3 are inclined surface structures adapted to the inclined ejecting blocks 3, the outer walls of the two sides of the mold core main body 1 close to the two inner sliding blocks 2 are arc structures having the same diameter as the arc surface of the inclined ejecting block 3, and the outer side surface of the L-shaped flat sliding block 21 close to one side of the mold core main body 1 is an arc structure having the same diameter as the arc surface of the mold core main body 1;

specifically, after the movable die insert 4 is pressed upwards, the outer side surface of the inclined ejector block 3, the outer side surface of the die core main body 1 and the outer side surface of the L-shaped flat slide block 21 close to one side of the die core main body 1 form a cylindrical structure, so that die casting is realized.

Further, in the above technical solution, the bottom of each of the two inclined ejecting blocks 3 is provided with an ejector pin 6, the top of each ejector pin 6 is provided with a chuck 61, the bottom of each inclined ejecting block 3 is provided with a T-shaped groove, and each chuck 61 is located inside the T-shaped groove;

specifically, the chuck 61 is positioned in the T-shaped groove and is limited, and the top of the ejector pin 6 penetrates through the opening at the bottom of the T-shaped groove, so that when the ejector pin 6 moves downwards due to the reset rod, the ejector pin can drive the inclined ejector block 3 to reset.

This practical theory of operation:

when the die-casting die is in die-casting, the movable die insert 4 presses upwards, the inclined groove 52 can be inserted in alignment with the inclined protrusion 22, along with the upward pressing of the movable die insert 4, the L-shaped flat slide block 21 can move in the second chute 42 due to the fact that the inclined protrusion 22 is stirred by the inclined groove 52, and the outward core expansion action is completed, after the die-casting die is completely closed, the ejector pin 6 moves downwards under the action of a reset rod of the die-casting die and is in limit connection with the chuck 61 through the T-shaped groove, the two inclined ejector blocks 3 are pulled to reset downwards, at the moment, the outer side face of one end of the L-shaped flat slide block 21, the outer side face of the die core main body 1 and the outer side faces of the two inclined ejector blocks 3 form a cylindrical structure together, the plurality of arc-shaped protrusions 7 form a ring-shaped structure, the arc-shaped protrusions 7 of the ring form an inwards core-pulling structure corresponding to the die-casting piece, after the die-casting is completed, the movable die is separated, and meanwhile, the inclined protrusion 22 on the L-shaped flat slide block 21 firstly completes the inward core pulling action under the drawing action of the inclined groove 52 on the fixed die insert 5. Then, after the movable die part including the movable die insert 4 stops operating, the ejection mechanism pushes the inclined ejection block 3 to move upwards and inwards in the first sliding groove 41 through the ejector pin 6, and simultaneously, the actions of core pulling and die casting ejection are completed. Finally, the quick core pulling and the demoulding are completely realized.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. For example the utility model discloses the mechanism that describes is applicable to the mould structure on the hot type die casting machine, has used and has gone upward, has pushed up and down the motion concept. If the device is applied to a cold die casting machine, the concept of forward movement and backward movement should be changed. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.

Claims

1. The utility model provides a demoulding mechanism of whole circle indent die casting, includes mold core main part (1) and inlays cover half insert (5) of die mould fixed die plate, its characterized in that: the die core structure is characterized in that a movable die insert (4) embedded with a movable die plate of a die-casting die is installed on the outer side of the die core main body (1), first sliding grooves (41) are formed between two sides of the die core main body (1) and the movable die insert (4), two inclined ejector blocks (3) are connected in the first sliding grooves (41) in a sliding mode, second sliding grooves (42) are formed in the other two sides of the top of the movable die insert (4), movable grooves (11) are formed in the two sides of the die core main body (1) in the same direction of the second sliding grooves (42), two inner sliding blocks (2) are connected in the second sliding grooves (42) in a sliding mode, each inner sliding block (2) is composed of an L-shaped flat sliding block (21) and an inclined convex block (22), each inclined convex block (22) is located at the top of the L-shaped flat sliding block (21), one end of each L-shaped flat sliding block (21) is located in each movable groove (11), a die cavity (51) is arranged in the center of the bottom of the fixed die core insert (5), and inclined grooves (52) matched with the inclined convex blocks (22) are arranged on two sides of the die cavity (51).

2. The ejection mechanism of a full-turn female die casting according to claim 1, wherein: two the outer lane of kicking block (3) and the outside of two L type sliding blocks (21) all are provided with arc shaping arch (7) with horizontal position department to one side, kicking block (3) top is parallel with mold core main part (1) top, L type sliding block (21) insert activity groove (11) and second spout (42) to one side, and when other end lateral surface and mold core main part (1) lateral surface were in same arc, two arc shaping arch (7) of kicking block (3) and two L type sliding blocks (21) form complete circle type structure to one side.

3. The ejection mechanism of a full-turn female die casting according to claim 1, wherein: the vertical section of the second sliding groove (42) is of a T-shaped structure, and the vertical section of the L-shaped sliding block (21) of the inner sliding block (2) is of a T-shaped structure matched with the second sliding groove (42).

4. The ejection mechanism of a full-turn female die casting according to claim 1, wherein: the outside one side of kicking block (3) is the circular arc type structure to one side, the medial surface of kicking block (3) is the inclined plane structure to one side, mold core main part (1) is close to the both sides outer wall of two kicking blocks (3) to one side for with the inclined plane structure of kicking block (3) adaptation, mold core main part (1) is close to the both sides outer wall of two interior sliders (2) and is the circular arc type structure the same with the circular arc surface diameter of kicking block (3) to one side, the lateral surface that L type flat sliding block (21) is close to mold core main part (1) one side is the circular arc type structure the same with the circular arc surface diameter of mold core main part (1).

5. The ejection mechanism of a full-turn female die casting according to claim 1, wherein: two thimble (6) are all installed to the bottom of oblique kicking block (3), the top of thimble (6) is provided with chuck (61), the bottom of oblique kicking block (3) is provided with T type groove, chuck (61) are located T type inslot portion.