CN220387849U - Quick ejection structure of mould - Google Patents

Abstract

The utility model provides a rapid ejection structure of a mold, which comprises a male mold and a female mold, wherein a molding groove is formed in the surface of the female mold, a cavity is formed in the molding groove after the male mold and the female mold are assembled, a core is arranged in the middle of the molding groove, a first ejector rod is connected in the middle of the back of the female mold in a penetrating way, one end of the first ejector rod extends into the molding groove and is connected with the core, second ejector rods are connected in the two sides of the back of the female mold in a penetrating way, hydraulic cylinders are fixedly connected with a fixing plate, a third ejector rod is fixedly connected in the middle of the fixing plate, and telescopic rods are fixedly connected at four corners of a connecting plate.

Description

Quick ejection structure of mould

Technical Field

The utility model belongs to the technical field of die casting dies, and particularly relates to a die quick ejection structure.

Background

The die casting is a metal casting process, which is characterized in that a die cavity is utilized to apply high pressure to molten metal, the die is usually processed by alloy with higher strength, the process is somewhat similar to injection molding, after metal molding, the die casting die is ejected out of the die through a push rod at one time, so that the die casting is easy to deform, and because pressure difference is easily reduced in the die casting process, the push rod cannot directly eject a device or push out the die casting, the die casting die is difficult to install a secondary ejection structure according to requirements in the prior art, the secondary ejection structure is controlled by a plurality of control systems, the cost is high, the operation is responsible, the secondary ejection structure is controlled manually during the demolding, and the process is complicated.

Disclosure of Invention

The utility model aims to provide a rapid ejection structure of a die, and aims to solve the problems in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a quick ejecting structure of mould, includes male mould and master mould, the shaping groove has been seted up on the master mould surface, form the die cavity in the shaping inslot after male mould and the master mould compound die, shaping inslot middle part is provided with the core, the back middle part interlude of master mould is connected with first ejector pin, the one end of first ejector pin extends to the shaping inslot and is connected with the core, the back both sides of master mould all interlude are connected with the second ejector pin, the one end that first ejector pin is located outside the master mould and connecting plate fixed connection, the second ejector pin is interlude with the connecting plate and is connected, the back both sides of master mould all fixedly connected with pneumatic cylinder, pneumatic cylinder and fixed plate fixed connection, the middle part fixedly connected with third ejector pin of fixed plate, four corner fixedly connected with telescopic links of connecting plate, the outside cover of telescopic link is equipped with first spring, the both ends of first spring are connected with connecting plate and master mould respectively.

As a preferable technical scheme of the utility model, one end of the second ejector rod is fixedly connected with a limiting block, a second spring is sleeved outside the second ejector rod, and two ends of the second spring are respectively connected with the limiting hole and the connecting plate.

As a preferable technical scheme of the utility model, four corners of the surface of the female die are provided with positioning holes, and the four corners of the male die are fixedly connected with positioning rods which are matched with the positioning holes in size and are connected with the positioning holes in a penetrating way.

As a preferable technical scheme of the utility model, two grooves are formed at the bottom of the forming groove, one end of the second ejector rod is fixedly connected with an ejector block, and the size of the ejector block is matched with that of the grooves.

As a preferable technical scheme of the utility model, when the first spring and the second spring are in the initial state, the top block is completely positioned in the groove, and the core is tightly attached to the bottom of the forming groove.

As an preferable technical scheme of the utility model, when the piston rod of the hydraulic cylinder is in the maximum stroke, the distance between the limiting block and the fixed plate is larger than the distance between the third ejector rod and the connecting plate.

Compared with the prior art, the utility model has the beneficial effects that: when the die is opened again, the hydraulic cylinder drives the female die to move backwards, firstly, after the third ejector rod contacts with the connecting plate, the connecting plate drives the first ejector rod to enable the first ejector rod to drive the core to eject the formed product once, and as the female die moves backwards continuously, after the limiting block contacts with the fixing plate, the second ejector rod can drive the ejector block to eject the product out of the forming groove completely, and then the ejector structure can eject the formed product out of the forming groove secondarily in the die opening process.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of a master mold according to the present utility model;

fig. 3 is a schematic cross-sectional structure of the present utility model.

In the figure: 1. a male mold; 2. a master mold; 3. a forming groove; 4. a molding cavity; 5. a core; 6. a first ejector rod; 7. a second ejector rod; 8. a connecting plate; 9. a hydraulic cylinder; 10. a fixing plate; 11. a third ejector rod; 12. a telescopic rod; 13. a first spring; 14. a limiting block; 15. a second spring; 16. positioning holes; 17. a positioning rod; 18. a groove; 19. and (5) a top block.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the present utility model provides the following technical solutions: the utility model provides a quick ejecting structure of mould, including public mould 1 and master mould 2, forming the shaping groove 3 has been seted up on the master mould 2 surface, form die cavity 4 in shaping groove 3 after public mould 1 and master mould 2 compound die, the middle part is provided with core 5 in the shaping groove 3, the back middle part of master mould 2 alternates and is connected with first ejector pin 6, the one end of first ejector pin 6 extends to in the shaping groove 3 and is connected with core 5, the back both sides of master mould 2 all alternate and are connected with second ejector pin 7, the one end that first ejector pin 6 is located outside the master mould 2 and connecting plate 8 fixed connection, second ejector pin 7 and connecting plate 8 alternate and are connected, the equal fixedly connected with pneumatic cylinder 9 in back both sides of master mould 2, pneumatic cylinder 9 and fixed plate 10 fixed connection, the middle part fixedly connected with third ejector pin 11 of fixed plate 10, four corners department all fixed connection telescopic link 12 of connecting plate 8, the outside cover of telescopic link 12 is equipped with first spring 13, the both ends of first spring 13 are connected with connecting plate 8 and master mould 2 respectively.

In this embodiment, a limiting block 14 is fixedly connected to one end of the second ejector rod 7, a second spring 15 is sleeved outside the second ejector rod 7, two ends of the second spring 15 are respectively connected with the limiting hole and the connecting plate 8, and when a piston rod of the hydraulic cylinder 9 is in a maximum stroke, the distance between the limiting block 14 and the fixed plate 10 is greater than the distance between the third ejector rod 11 and the connecting plate 8.

Specifically, after the limiting block 14 contacts the fixed plate 10, the limiting block 14 drives the second ejector rod 7 to eject the product, the second spring 15 is compressed in the process, and when the male die 1 and the female die 2 are closed, the second spring 15 is deformed in a recovery mode, so that the second ejector rod 7 returns, and then the second ejector rod 7 returns without using a control system, so that the manufacturing cost of the ejection structure is effectively reduced.

In this embodiment, four corners of the surface of the female die 2 are provided with positioning holes 16, four corners of the male die 1 are fixedly connected with positioning rods 17, the positioning rods 17 are matched with the positioning holes 16 in size, and the positioning rods 17 are connected with the positioning holes 16 in a penetrating manner.

Specifically, the male mold 1 and the female mold 2 are positioned by the positioning rod 17 and the positioning hole 16.

In this embodiment, two grooves 18 are formed at the bottom end of the forming groove 3, one end of the second ejector rod 7 is fixedly connected with a top block 19, the size of the top block 19 is matched with that of the grooves 18, the top block 19 is completely located in the grooves 18 when the first spring 13 and the second spring 15 are located in an initial state, and the core 5 is tightly attached to the bottom of the forming groove 3.

Specifically, the ejector block 19 is arranged to facilitate ejection of the product out of the forming groove 3.

Working principle: the hydraulic cylinder 9 is used for pushing the female die 2 to enable the positioning rod 17 to be inserted into the positioning hole 16, so that die assembly of the male die 1 and the female die 2 is achieved, molten metal liquid is injected into the forming cavity 4 for forming, when a formed product is die-removed, firstly the hydraulic cylinder 9 drives the female die 2 to move backwards, when a piston rod of the hydraulic cylinder 9 is in a maximum stroke, the distance between the limiting block 14 and the fixed plate 10 is greater than the distance between the third ejector rod 11 and the connecting plate 8, then the third ejector rod 11 is in contact with the connecting plate 8, then the connecting plate 8 drives the first ejector rod 6 to enable the core 5 to eject the product at first time, the connecting plate 8 pushes the first ejector rod 6 to extrude the first spring 13, when the telescopic rod 12 is completely retracted, the connecting plate 8 cannot drive the first ejector rod 6 to continue to eject the product, and in the process of limiting block 14 is in contact with the fixed plate 10, then the second ejector rod 7 drives the ejector block 19 to completely eject the product out of the forming groove 3, and then the hydraulic cylinder 9 drives the female die 2 and the male die 1 to be die assembled, the first spring 13 and the second spring 15 are restored to deform to enable the first ejector rod 6 and the second ejector rod 7 to eject the product, the ejector structure is simple in structure, the die-removing system can be controlled conveniently, the die-removed in the die-removing process, and the die-removing process can be controlled conveniently, and the die-removed die-removing system can be ejected conveniently and easily in the die-removing process.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (6)

1. The utility model provides a quick ejecting structure of mould, includes public mould (1) and master mould (2), its characterized in that: the novel plastic forming die is characterized in that a forming groove (3) is formed in the surface of the female die (2), a cavity (4) is formed in the forming groove (3) after the male die (1) and the female die (2) are assembled, a core (5) is arranged in the middle of the forming groove (3), a first ejector rod (6) is inserted and connected in the middle of the back of the female die (2), one end of the first ejector rod (6) extends into the forming groove (3) and is connected with the core (5), second ejector rods (7) are inserted and connected in two sides of the back of the female die (2), one end of the first ejector rod (6) located outside the female die (2) is fixedly connected with a connecting plate (8), the second ejector rods (7) are inserted and connected with the connecting plate (8), hydraulic cylinders (9) are fixedly connected with the two sides of the back of the female die (2), a third ejector rod (11) is fixedly connected with the middle of the fixing plate (10), four corners of the connecting plate (8) are fixedly connected with telescopic rods (12), and two ends of the first spring (13) are connected with the first spring (13) and two ends of the first spring (8) are respectively connected with the female die (13).

2. The rapid ejection structure of claim 1, wherein: one end fixedly connected with stopper (14) of second ejector pin (7), the outside cover of second ejector pin (7) is equipped with second spring (15), the both ends of second spring (15) are connected with spacing hole and connecting plate (8) respectively.

3. The rapid ejection structure of claim 1, wherein: positioning holes (16) are formed in four corners of the surface of the female die (2), positioning rods (17) are fixedly connected to the four corners of the male die (1), the positioning rods (17) are matched with the positioning holes (16) in size, and the positioning rods (17) are connected with the positioning holes (16) in a penetrating mode.

4. The rapid ejection structure of claim 1, wherein: two grooves (18) are formed in the bottom end of the forming groove (3), one end of the second ejector rod (7) is fixedly connected with an ejector block (19), and the size of the ejector block (19) is matched with that of the grooves (18).

5. The rapid ejection structure of claim 4, wherein: when the first spring (13) and the second spring (15) are in an initial state, the top block (19) is completely positioned in the groove (18) and the core (5) is tightly attached to the bottom of the forming groove (3).

6. The rapid ejection structure of claim 2, wherein: when the piston rod of the hydraulic cylinder (9) is in the maximum stroke, the distance between the limiting block (14) and the fixed plate (10) is larger than the distance between the third ejector rod (11) and the connecting plate (8).