CN218134876U

CN218134876U - Die casting die exhaust structure

Info

Publication number: CN218134876U
Application number: CN202221888739.7U
Authority: CN
Inventors: 孙飞
Original assignee: Dabowen Precision Hardware Technology Suzhou Co ltd
Current assignee: Dabowen Precision Hardware Technology Suzhou Co ltd
Priority date: 2022-07-20
Filing date: 2022-07-20
Publication date: 2022-12-27
Anticipated expiration: 2032-07-20

Abstract

The utility model discloses a die casting die exhaust structure, last box and lower box including the cooperation installation have seted up the draw-in groove in the lower box, and integrated into one piece has the kelly of being connected with the draw-in groove on going up the box, has seted up the epicoele in going up the box, sets up the cavity of resorption that corresponds with the epicoele in the lower box, sets up in the last box with the communicating sprue gate of epicoele, is provided with the exhaust mechanism who is arranged in the lower box to be arranged in discharging the mould air. The first rack is driven by the movable plate to slide outwards in the first transverse groove, the second gear is in meshed transmission with the second rack, the second rack is allowed to slide outwards in the second transverse groove, the lower cavity is communicated with the exhaust hole, and residual air in the cavity is exhausted out of the lower box body. When the air pressure in the cavity tends to be stable with the outside, the second rack slides inwards under the elastic acting force of the first spring and the second spring to continuously block the exhaust hole, and then pouring operation is performed from the pouring gate, so that the influence of residual air in the cavity on the die-casting operation is reduced.

Description

Die casting die exhaust structure

Technical Field

The utility model relates to the technical field of mechanical equipment, especially, relate to a die casting die exhaust structure.

Background

The die casting is a part which is generally called a die casting, and is a pressure casting mechanical die casting machine which is used for installing a casting die, and copper, zinc, aluminum or aluminum alloy parts with shapes and sizes limited by the die are cast by pouring metal such as copper, zinc, aluminum or aluminum alloy which is heated to be liquid into a feeding port of the die casting machine through die casting of the die casting machine.

At present, the air in the die needs to be exhausted in the molding process of the casting die, and in order to exhaust the air in the inner cavity of the die better in the production process, an exhaust structure is usually arranged in the die-casting die, and the good and bad performance of the exhaust structure of the die-casting die plays a decisive role in the performance of the die. However, the traditional exhaust structure of the casting mold is simple in design, gas generated during casting of the mold cannot be fully exhausted, so that the exhaust efficiency is low, the exhaust effect is poor, the quality of the formed die-casting mold is seriously affected, and the scientific production and processing requirements cannot be met.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the existing exhaust structure in the prior art can not completely exhaust the air in the die, and the die casting die exhaust structure who provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a die casting die exhaust structure, includes last box and lower box of cooperation installation, set up the draw-in groove in the box down, go up integrated into one piece and have the kelly of being connected with the draw-in groove on the box, and set up the epicoele in going up the box, set up the cavity of resorption that corresponds with the epicoele in the box down, set up the sprue gate communicating with the epicoele in going up the box, be provided with the exhaust mechanism who is arranged in the box down and is used for discharging the air in the mould.

Preferably, the clamping grooves are vertically and symmetrically arranged in the lower box body, and the clamping rods are movably sleeved in the clamping grooves.

Preferably, the upper cavity and the lower cavity are aligned from top to bottom, and the pouring gate is vertically arranged at the upper end of the upper box body.

Preferably, exhaust mechanism is including offering in the box down and with the communicating first cross slot of cavity of resorption, be provided with the first spring and the first rack that are connected respectively in the first cross slot, fixedly connected with movable plate on the first rack, set up the communicating second cross slot with the cavity of resorption in the box down, erect the groove between first cross slot and the second cross slot, it installs the axis of rotation to rotate in the groove, fixed cover is equipped with the first gear of being connected with first rack meshing in the axis of rotation, and the fixed cover of the other end is equipped with the second gear in the axis of rotation, the communicating exhaust hole with the external world has been seted up to the second cross slot, and is provided with the second spring that is connected and the second rack that corresponds with the exhaust hole with second gear meshing respectively in the second cross slot.

Preferably, the first spring is horizontally welded in the first transverse groove, the first rack is horizontally slidably sleeved in the first transverse groove, and the first gear and the second gear are horizontally arranged in the first transverse groove and the second transverse groove respectively.

Preferably, the second spring is horizontally welded in the second transverse groove, the second rack is horizontally slidably sleeved in the second transverse groove, and the second rack is movably abutted against the exhaust hole.

Compared with the prior art, the utility model discloses possess following advantage:

1. the utility model discloses a cavity to epicoele and cavity constitution down carries out pressure boost and heating, because the air high temperature expansion in the cavity, outwards extrude the movable plate of the both sides of cavity of resorption, the movable plate drives first rack and outwards slides in first transverse groove, first rack and first gear engagement transmission, it is rotatory to let first gear drive axis of rotation, the axis of rotation drives the second gear rotation, second gear and second rack engagement transmission, let the second rack outwards slide in the second transverse groove, make cavity of resorption and exhaust hole communicate with each other, let during the surplus air discharge box in the cavity.

2. The utility model discloses a lower chamber is linked together with the exhaust hole, lets in the surplus air escape lower box in the cavity, when treating atmospheric pressure in the cavity and external stability, under the elastic force of first spring and second spring for the second rack slides inwards, will exhaust the hole and continue to block up, later again from the sprue gate pouring operation, with the influence of the surplus gas in the reduction cavity to the die-casting operation.

To sum up, the utility model discloses an air high temperature inflation in the cavity is to the outside extrusion of movable plate of the both sides of cavity of resorption, and the movable plate drives first rack and outwards slides in first cross slot, and second gear and second rack meshing transmission let the second rack outwards slide in the second cross slot for the cavity of resorption communicates with each other with the exhaust hole, lets during the surplus air discharge box in the cavity, avoids surplus air to influence the die-casting quality. The lower cavity is communicated with the exhaust hole, so that residual air in the cavity is exhausted from the lower box body, when the air pressure in the cavity tends to be stable with the outside, the second rack slides inwards under the elastic acting force of the first spring and the second spring, the exhaust hole is continuously blocked, and then pouring operation is carried out from the pouring gate, so that the influence of residual air in the cavity on die-casting operation is reduced.

Drawings

Fig. 1 is a schematic structural view of an exhaust structure of a die-casting mold according to the present invention;

fig. 2 is a schematic structural view of a main sectional view of an exhaust structure of a die casting mold according to the present invention;

fig. 3 is an enlarged schematic view of a part a of the exhaust structure of the die casting mold according to the present invention.

In the figure: 1. an upper box body; 2. a lower box body; 3. a card slot; 4. a clamping rod; 5. an upper chamber; 6. a lower cavity; 7. a pouring gate; 8. a first transverse slot; 9. a first spring; 10. a first rack; 11. moving the plate; 12. a second transverse groove; 13. a vertical slot; 14. a rotating shaft; 15. a first gear; 16. a second gear; 17. an exhaust hole; 18. a second spring; 19. a second rack.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, an exhaust structure of a die casting mold comprises an upper box body 1 and a lower box body 2 which are installed in a matched mode, wherein a clamping groove 3 is formed in the lower box body 2, a clamping rod 4 connected with the clamping groove 3 is integrally formed on the upper box body 1, the upper box body 1 is connected with the lower box body 2 by placing the clamping rod 4 into the clamping groove 3, so that subsequent die casting operation can be conveniently carried out, an upper cavity 5 is formed in the upper box body 1, a lower cavity 6 corresponding to the upper cavity 5 is formed in the lower box body 2, a pouring port 7 communicated with the upper cavity 5 is formed in the upper box body 1, and an exhaust mechanism used for exhausting air in the mold is arranged in the lower box body 2.

The clamping grooves 3 are vertically and symmetrically arranged in the lower box body 2, and the clamping rods 4 are movably sleeved in the clamping grooves 3.

The upper cavity 5 and the lower cavity 6 are aligned from top to bottom, the pouring port 7 is vertically arranged at the upper end of the upper box body 1, and a cavity formed by the upper cavity 5 and the lower cavity 6 is poured through the pouring port 7.

The exhaust mechanism comprises a first transverse groove 8 which is arranged in the lower box body 2 and communicated with the lower cavity 6, a first spring 9 and a first rack 10 which are connected are respectively arranged in the first transverse groove 8, a moving plate 11 is fixedly connected to the first rack 10, a second transverse groove 12 which is communicated with the lower cavity 6 is arranged in the lower box body 2, a vertical groove 13 is arranged between the first transverse groove 8 and the second transverse groove 12, a rotating shaft 14 is rotatably arranged in the vertical groove 13, the rotating shaft 14 heats and pressurizes the cavity to enable air in the cavity to expand at high temperature and extrude the moving plate 11 in the lower box body 2, the lower box body 2 is further communicated with an exhaust hole 17, the air in the cavity is exhausted out of the lower box body 2, the influence of residual air on the final quality of die casting is avoided, a first gear 15 which is meshed with the first rack 10 is fixedly sleeved on the rotating shaft 14, a second gear 16 is fixedly sleeved on the other end of the rotating shaft 14, an exhaust hole 17 which is communicated with the outside is arranged in the second transverse groove 12, and a second spring 18 which is meshed with the second gear 16 and a second gear 19 which is correspondingly connected with the second gear 17 are respectively arranged in a meshed.

The first spring 9 is horizontally welded in the first transverse groove 8, the first rack 10 is horizontally slidably sleeved in the first transverse groove 8, and the first gear 15 and the second gear 16 are horizontally arranged in the first transverse groove 8 and the second transverse groove 12, respectively.

The second spring 18 is horizontally welded in the second transverse groove 12, the second rack 19 is horizontally slidably sleeved in the second transverse groove 12, the second rack 19 is movably abutted to the exhaust hole 17, when residual air in the cavity is exhausted out of the lower box body 2, air pressure in the cavity is kept level with the outside, the movable plate 11 is not extruded any more, and the exhaust hole 17 continues to be blocked under the elastic acting force of the first spring 9 and the second spring 18, so that subsequent die-casting operation is performed.

The utility model discloses its functional principle is explained to the following mode of operation of accessible:

when in die casting, the clamping rod 4 of the upper box body 1 is placed in the clamping groove 3 in the lower box body 2, the upper box body 1 is connected with the lower box body 2, a cavity formed by the upper cavity 5 and the lower cavity 6 is pressurized and heated, then the pouring gate 7 on the upper box body 1 is blocked, due to high-temperature expansion of air in the cavity, the movable plates 11 on two sides of the lower cavity 6 are outwards extruded, the movable plates 11 drive the first rack 10 to outwards slide in the first transverse groove 8, the first rack 10 extrudes the first spring 9, the first rack 10 is meshed with the first gear 15 for transmission, and the first gear 15 drives the rotating shaft 14 to rotate;

the rotating shaft 14 drives the second gear 16 to rotate, the second gear 16 and the second rack 19 are in meshed transmission, the second rack 19 slides outwards in the second transverse groove 12, the second rack 19 extrudes the second spring 18, the lower cavity 6 is communicated with the exhaust hole 17, residual air in the cavity is exhausted out of the lower box body 2, when the air pressure in the cavity tends to be stable with the outside, the second rack 19 slides inwards under the elastic acting force of the first spring 9 and the second spring 18, the exhaust hole 17 continues to be blocked, and then pouring operation is performed from the pouring gate 7, so that the influence of residual air in the cavity on die-casting operation is reduced.

The above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, which are designed to be replaced or changed equally, all should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a die casting die exhaust structure, includes last box (1) and lower box (2) of cooperation installation, a serial communication port, draw-in groove (3) have been seted up in lower box (2), go up integrated into one piece and have kelly (4) be connected with draw-in groove (3) on box (1), and seted up epicoele (5) in last box (1), set up cavity of resorption (6) that correspond with epicoele (5) in lower box (2), set up in last box (1) and communicate with each other sprue gate (7) with epicoele (5), be provided with the exhaust mechanism who is arranged in discharging the air of mould in lower box (2).

2. The die-casting die exhaust structure as claimed in claim 1, wherein the clamping grooves (3) are vertically symmetrical in the lower box body (2), and the clamping rods (4) are movably sleeved in the clamping grooves (3).

3. The venting structure of die casting mold as claimed in claim 1, wherein the upper chamber (5) and the lower chamber (6) are aligned from top to bottom, and the gate (7) is vertically disposed at an upper end of the upper case (1).

4. The die-casting die exhaust structure as claimed in claim 1, wherein the exhaust mechanism comprises a first transverse groove (8) which is arranged in the lower box body (2) and communicated with the lower cavity (6), a first spring (9) and a first rack (10) which are connected are respectively arranged in the first transverse groove (8), a moving plate (11) is fixedly connected to the first rack (10), a second transverse groove (12) which is communicated with the lower cavity (6) is arranged in the lower box body (2), a vertical groove (13) is formed between the first transverse groove (8) and the second transverse groove (12), a rotating shaft (14) is rotatably arranged in the vertical groove (13), a first gear (15) which is meshed with the first rack (10) is fixedly sleeved on the rotating shaft (14), a second gear (16) is fixedly sleeved on the other end of the rotating shaft (14), an exhaust hole (17) which is communicated with the outside is formed in the second transverse groove (12), and a second spring (18) and a second gear (19) which are connected with the second gear (16) are respectively arranged in the second transverse groove (12) and are meshed with the second gear (17).

5. A die-casting die venting structure as claimed in claim 4, characterized in that the first spring (9) is welded horizontally in the first transverse groove (8), the first rack (10) is horizontally slidably sleeved in the first transverse groove (8), and the first gear (15) and the second gear (16) are horizontally arranged in the first transverse groove (8) and the second transverse groove (12), respectively.

6. A die casting die vent structure according to claim 5, characterized in that the second spring (18) is horizontally welded in the second transverse groove (12), the second rack (19) is horizontally and slidably sleeved in the second transverse groove (12), and the second rack (19) is movably abutted against the vent hole (17).