Die-casting die with exhaust function

Abstract

The utility model belongs to the technical field of die-casting dies, and particularly relates to a die-casting die with an exhaust function, which comprises a base, a lower die body is arranged at the upper end of the base, an upper die body is arranged at the upper end of the lower die body, an exhaust hole is arranged on the surface of the lower die body, and an anti-backflow exhaust mechanism is arranged in the exhaust hole. The upper end of the upper die body is slidably connected with two evenly-distributed blocking plates, the two blocking plates make contact with each other, and the arc-shaped edge of each blocking plate is fixedly connected with a connecting plate. Under the impact action of gas generated in the die-casting process, the first spring deforms, so that the plug is separated from the fixing disc, under the action of the exhaust hole, gas generated in the die-casting process can be automatically exhausted, and under the action of structures such as the guide plate and the plug, the die-casting process can be automatically finished. And the problem of gas backflow caused by internal and external pressure difference of the die-casting die can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of die casting moulds, in particular to a die casting mould with an exhaust function. Background Art

[0002] As we all know, die casting molds are special molds used in die casting process to manufacture die castings. Die casting is a process in which molten metal is injected into a mold and rapidly cooled and solidified under high pressure. Die casting molds usually consist of an upper mold and a lower mold, and may also include multiple auxiliary parts such as sliders and push rods.

[0003] The utility model patent with the announcement number CN206925300U discloses a die-casting mold, including a first mold and a second mold arranged oppositely, a first molding area is provided on the side of the first mold facing the second mold, and a second molding area is provided on the side of the second mold facing the first mold. When the molds are closed, the first molding area is opposite to the second molding area and a cavity is formed between the two. The characteristics are as follows: the die-casting mold also includes a plurality of adjustment parts, which are detachably fixed on the side of the first mold facing the second mold and arranged around the first molding area, and each adjustment part protrudes from the surface of one side of the first mold facing the second mold; when the die-casting mold is closed, the plurality of adjustment parts abut against the second mold to adjust the distance between the first molding area and the second molding area, thereby adjusting the size of the various parts of the casting. When the mold needs to be repaired, only the adjustment parts need to be trimmed, and there is no need to trim the entire mold, saving costs.

[0004] However, the existing die-casting molds still have certain shortcomings: first, most of the existing die-casting molds simply use exhaust holes and other structures to exhaust the gas generated during the die-casting process. Due to the stop of the die-casting action and the pressure difference between the inside and outside of the mold, it is easy to cause the problem of gas reflux;

[0005] Secondly, most of the existing die-casting molds simply adopt an open injection hole design for injecting molten metal. When the die-casting mold is in an idle state, it is easy to cause the problem of dust and other impurities invading. Utility Model Content

[0006] The utility model aims to provide a die-casting mold with an exhaust function, which solves the problem that the existing die-casting molds mostly simply use exhaust holes and other structures to exhaust the gas generated in the die-casting process, which is easy to cause gas reflux due to the factors such as the stop of the die-casting action and the pressure difference between the inside and outside of the mold; and solves the problem that the existing die-casting molds mostly simply use open injection holes for the injection of molten metal, which is easy to cause dust and other impurities to invade when the die-casting mold is in an idle state.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a die-casting mold with an exhaust function, comprising a base, a lower mold body is arranged at the upper end of the base, an upper mold body is arranged at the upper end of the lower mold body, an exhaust hole is opened on the surface of the lower mold body, and an anti-backflow exhaust mechanism is arranged inside the exhaust hole, and two evenly distributed sealing plates are slidably connected to the upper end of the upper mold body, and the two sealing plates are in contact with each other, and the arc edges of each of the sealing plates are fixedly connected to a connecting plate, and the connecting plate is slidably connected to the upper mold body, and an electromagnet is fixedly installed inside the upper mold body, and a sliding rod is slidably connected inside the electromagnet, and the sliding rod is fixedly connected to the connecting plate, and a magnetic tube is fixedly sleeved on the outer side of the sliding rod, and the magnetic tube is fixedly connected to the connecting plate.

[0008] Preferably, four exhaust holes are provided, and the four exhaust holes are evenly distributed on the lower mold body. Through the provision of the exhaust holes, the gas can be exhausted.

[0009] Preferably, a second spring is welded to the end surface of the slide bar away from the connecting plate, and the other end of the second spring is welded to the upper mold body. The slide bar can be tightened by the provision of the second spring.

[0010] Preferably, the anti-backflow exhaust mechanism includes a fixed disk, the inner wall of the exhaust hole is fixedly connected to a fixed disk, the interior of the fixed disk is slidably connected to a plug, the inner wall of the exhaust hole is fixedly connected to a fixed sheet, the interior of the fixed sheet is slidably connected to a guide plate, the guide plate is slidably connected to the exhaust hole, the guide plate is in contact with the fixed disk, and the guide plate is fixedly connected to the plug. When the gas generated during the die-casting process impacts the plug, the plug pushes the guide plate to move, so that the guide plate moves along the inside of the fixed sheet to ensure the stable movement of the plug. Once the spring is deformed, the plug gradually separates from the fixed disk, and finally the fixed disk is in a circulation state, and in conjunction with the setting of the exhaust hole, the gas can be exhausted. After the gas is discharged, the spring restores its deformation to push the guide plate to contact the fixed disk, thereby driving the plug to be inserted into the fixed disk, and the exhaust hole is sealed to avoid the problem of gas backflow.

[0011] Preferably, a plurality of guide plates are provided, and the plurality of guide plates are evenly distributed on the fixing plate, and the plug can be guided by the provision of the guide plates.

[0012] Preferably, a spring 1 is welded on the surface of the fixing plate close to the fixing disk, and the other end of the spring 1 is welded to the plug. By setting the spring 1, the plug can be tightened.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model can block the injection hole by setting a blocking plate to avoid the invasion of dust and other impurities in an idle state. Under the action of structures such as electromagnets and magnetic tubes, the sliding rod can be driven to move, thereby driving the connecting plate to move, and then driving the blocking plate to move, so that the injection hole is automatically opened for use.

[0015] 2. In the utility model, under the impact of the gas generated during the die-casting process, the spring is deformed, so that the plug is separated from the fixed plate. Under the action of the exhaust hole, the gas generated during the die-casting process can be automatically exhausted. Under the action of the guide plate, the plug and other structures, the problem of gas reflux caused by the pressure difference between the inside and outside of the die-casting mold can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0017] Figure 2 For the utility model Figure 1 A front cross-sectional view of

[0018] Figure 3 For the utility model Figure 1 A top-down perspective view of

[0019] Figure 4 For the utility model Figure 2 A magnified image of point A;

[0020] Figure 5 For the utility model Figure 3 Enlarged view of point B.

[0021] In the figure: 1. base; 2. lower mold body; 3. upper mold body; 4. exhaust hole; 5. anti-backflow exhaust mechanism; 6. sealing plate; 7. connecting plate; 8. electromagnet; 9. sliding rod; 10. magnetic tube; 11. spring 2; 51. fixing plate; 52. plug; 53. fixing plate; 54. guide plate; 55. spring 1. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1 , Figure 2 , Figure 3 , Figure 5A die-casting mold with exhaust function comprises a base 1, a lower mold body 2 is arranged at the upper end of the base 1, an upper mold body 3 is arranged at the upper end of the lower mold body 2, an exhaust hole 4 is opened on the surface of the lower mold body 2, four exhaust holes 4 are arranged, and the four exhaust holes 4 are evenly distributed on the lower mold body 2. Through the arrangement of the exhaust holes 4, the gas can be exhausted, and an anti-backflow exhaust mechanism 5 is arranged inside the exhaust holes 4. Two evenly distributed sealing plates 6 are slidably connected to the upper end of the upper mold body 3, and the two sealing plates 6 are in contact with each other. The arc edges of each sealing plate 6 are fixedly connected with a connecting plate 7, and the connecting plate 7 is slidably connected to the upper mold body 3. An electromagnet 8 is fixedly installed inside the upper mold body 3, and a slide rod 9 is slidably connected inside the electromagnet 8, and the slide rod 9 is fixed to the connecting plate 7. Fixed connection, the outer side of the slide rod 9 is fixedly sleeved with a magnetic tube 10, the magnetic tube 10 is fixedly connected to the connecting plate 7, and the end face of the slide rod 9 away from the connecting plate 7 is welded with a spring 2 11, and the other end of the spring 2 11 is welded to the upper mold body 3. Through the setting of the spring 2 11, the slide rod 9 can be tightened, and through the setting of the sealing plate 6, impurities such as dust can be blocked to avoid the problem of dust invading the die-casting mold. Through the setting of the electromagnet 8, the magnetic tube 10 can be magnetically adsorbed to pull the slide rod 9 to move, the spring 2 11 is deformed, and then the connecting plate 7 is driven to move, and finally the sealing plate 6 is driven to move, so that the two sealing plates 6 move away from each other, so that the injection hole on the surface of the upper mold body 3 is in an exposed state, which is convenient for the subsequent injection of molten metal.

[0024] See also Figure 1 , Figure 2 , Figure 3 , Figure 4The anti-backflow exhaust mechanism 5 includes a fixed disk 51, the inner wall of the exhaust hole 4 is fixedly connected with the fixed disk 51, the interior of the fixed disk 51 is slidably connected with a plug 52, the inner wall of the exhaust hole 4 is fixedly connected with a fixed sheet 53, the interior of the fixed sheet 53 is slidably connected with a guide plate 54, the guide plate 54 is slidably connected to the exhaust hole 4, the guide plate 54 contacts the fixed disk 51, the guide plate 54 is fixedly connected to the plug 52, a plurality of guide plates 54 are provided, and the plurality of guide plates 54 are evenly distributed on the fixed disk 53. The plug 52 can be guided by the provision of the guide plates 54, and a spring 55 is welded on the surface of the fixed sheet 53 close to the fixed disk 51. The other end of the spring 55 is welded to the plug 52. The setting of spring 1 55 can tighten the plug 52. When the gas generated in the die-casting process impacts the plug 52, the plug 52 pushes the guide plate 54 to move, so that the guide plate 54 moves along the inside of the fixing plate 53 to ensure the stable movement of the plug 52. The spring 1 55 is deformed, so that the plug 52 gradually separates from the fixed disk 51, and finally the fixed disk 51 is in a flow state, and the gas can be exhausted by cooperating with the setting of the exhaust hole 4. When the gas is discharged, the spring 1 55 restores its deformation to push the guide plate 54 to contact the fixed disk 51, and then drives the plug 52 to insert into the fixed disk 51, and the exhaust hole 4 is blocked to avoid the problem of gas reflux.

[0025] The specific implementation process of the utility model is as follows: when it is necessary to use the die-casting mold with exhaust function, the setting of the blocking plate 6 can block dust and other impurities to avoid the problem of dust invading the die-casting mold. The setting of the electromagnet 8 can magnetically adsorb the magnetic cylinder 10 to pull the slide bar 9 to move, and the spring 11 is deformed, thereby driving the connecting plate 7 to move, and finally driving the blocking plate 6 to move, so that the two blocking plates 6 move away from each other, so that the injection hole on the surface of the upper mold body 3 is in an exposed state, which is convenient for the subsequent injection of molten metal;

[0026] When the gas generated during the die-casting process impacts the plug 52, the plug 52 pushes the guide plate 54 to move, so that the guide plate 54 moves along the inside of the fixed plate 53 to ensure the stable movement of the plug 52, and the spring 1 55 is deformed, so that the plug 52 gradually separates from the fixed disk 51, and finally the fixed disk 51 is in a flow state, and the gas can be exhausted by cooperating with the setting of the exhaust hole 4. When the gas is discharged, the spring 1 55 restores its deformation to push the guide plate 54 to contact the fixed disk 51, and then drives the plug 52 to insert into the fixed disk 51, and the exhaust hole 4 is sealed to avoid the problem of gas reflux.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A die-casting mold with exhaust function, comprising a base (1), characterized in that: A lower mold body (2) is provided at the upper end of the base (1), an upper mold body (3) is provided at the upper end of the lower mold body (2), an exhaust hole (4) is provided on the surface of the lower mold body (2), an anti-backflow exhaust mechanism (5) is provided inside the exhaust hole (4), two evenly distributed sealing plates (6) are slidably connected to the upper end of the upper mold body (3), the two sealing plates (6) are in contact with each other, the arc edge of each sealing plate (6) is fixedly connected to a connecting plate (7), the connecting plate (7) is slidably connected to the upper mold body (3), an electromagnet (8) is fixedly installed inside the upper mold body (3), the electromagnet (8) is slidably connected inside with a sliding rod (9), the sliding rod (9) is fixedly connected to the connecting plate (7), the outer side of the sliding rod (9) is fixedly sleeved with a magnetic tube (10), and the magnetic tube (10) is fixedly connected to the connecting plate (7).

2. The die-casting mold with exhaust function according to claim 1, characterized in that: Four exhaust holes (4) are provided, and the four exhaust holes (4) are evenly distributed on the lower mold body (2).

3. The die-casting mold with exhaust function according to claim 1, characterized in that: A second spring (11) is welded to the end surface of the sliding rod (9) away from the connecting plate (7), and the other end of the second spring (11) is welded to the upper mold body (3).

4. The die-casting mold with exhaust function according to claim 1, characterized in that: The anti-backflow exhaust mechanism (5) comprises a fixed disk (51), the inner wall of the exhaust hole (4) is fixedly connected to the fixed disk (51), the interior of the fixed disk (51) is slidably connected to a plug (52), the inner wall of the exhaust hole (4) is fixedly connected to a fixed sheet (53), the interior of the fixed sheet (53) is slidably connected to a guide plate (54), the guide plate (54) is slidably connected to the exhaust hole (4), the guide plate (54) is in contact with the fixed disk (51), and the guide plate (54) is fixedly connected to the plug (52).

5. The die-casting mold with exhaust function according to claim 4, characterized in that: A plurality of guide plates (54) are provided, and the plurality of guide plates (54) are evenly distributed on the fixing plate (53).

6. The die-casting mold with exhaust function according to claim 4, characterized in that: A spring 1 (55) is welded on the surface of the fixing plate (53) on one side close to the fixing disk (51), and the other end of the spring 1 (55) is welded to the plug (52).

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