High-tension nozzle head of semi-solid magnesium alloy injection molding machine

Abstract

The utility model relates to the technical field of die-casting machines, and discloses a high-tension nozzle head and a nozzle part of a semi-solid magnesium alloy injection molding machine, the nozzle part is provided with a straight channel with an inlet and an outlet, the outlet is communicated with a spraying hole, and semi-solid magnesium alloy materials flow into the straight channel through the inlet and then flow out of the spraying hole. And the spray holes are composite holes. According to the technical scheme, the plurality of spraying holes are formed in the outlet of the nozzle part, and after the nozzle head finishes spraying materials, semi-solid slurry can be hung on the wall due to tension between the slurry and the inner walls of the spraying holes, so that the slurry casting phenomenon is avoided, and the risk that fire is increased due to the fact that the parting surface of a mold is stuck with the slurry due to dripping of the high-temperature slurry is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of die-casting machines, in particular to a high-tension nozzle head of a semi-solid magnesium alloy injection molding machine. Background Art

[0002] Semi-solid magnesium alloy injection molding machine is a mechanical device used to manufacture magnesium alloy parts. It heats the magnesium alloy material to liquid state and then injects it into a pre-designed casting mold. The metal fills the cavity in the mold through high pressure and forms the desired part shape after cooling.

[0003] For semi-solid magnesium alloy injection molding machines, as the size of the semi-solid magnesium alloy injection molding machine increases, the gate of the mold will also become larger, and the inner diameter of the nozzle head that matches it will also need to become larger. However, when the inner diameter of the nozzle head increases to a certain extent, the surface tension of the semi-solid slurry is limited, and the semi-solid slurry will flow out of the nozzle head, resulting in a casting phenomenon. Utility Model Content

[0004] The main purpose of the utility model is to provide a high-tension nozzle head for a semi-solid magnesium alloy injection molding machine, aiming to provide a high-tension nozzle head which can prevent the semi-solid slurry from producing a casting phenomenon.

[0005] In order to achieve the above-mentioned purpose, the nozzle head proposed by the utility model comprises:

[0006] A nozzle part, wherein the nozzle part is provided with a straight channel having an inlet and an outlet, wherein the outlet is in communication with a spray hole, and the semi-solid magnesium alloy material flows into the straight channel through the inlet and then flows out from the spray hole;

[0007] The spray hole is a composite hole.

[0008] In an embodiment of the present invention, the composite hole is a symmetrical half-moon ring hole.

[0009] In an embodiment of the present invention, the composite holes are four symmetrical through holes.

[0010] In an embodiment of the present invention, the through hole is a spindle-shaped through hole.

[0011] In an embodiment of the present invention, the composite hole is a combination of a central through hole and a spindle-shaped through hole, and the spindle-shaped through holes are four symmetrical through holes surrounding the central through hole.

[0012] In an embodiment of the present utility model, a stopper is formed between the central through hole and the four spindle-shaped through holes, and the thickness of the stopper along the axial direction of the straight channel is D, 25 mm≤D≤35 mm.

[0013] In one embodiment of the present invention, the total length of the sideline of the composite hole is L, 160mm<L<260mm, and the total area of ​​the composite hole is S, 2800mm2<S<4200mm2.

[0014] In one embodiment of the present invention, the high-tension nozzle head of the semi-solid magnesium alloy injection molding machine is made of alloy steel.

[0015] The utility model also provides a semi-solid magnesium alloy injection molding machine, the semi-solid magnesium alloy injection molding machine comprises a nozzle head, the nozzle head comprises:

[0016] A nozzle portion, wherein the nozzle portion is provided with a straight channel having an inlet and an outlet, wherein one end of the inlet of the straight channel is connected to a semi-solid magnesium alloy injection molding machine; and

[0017] A stopper is provided at the outlet of the nozzle portion, and the stopper separates the outlet into at least two spray holes.

[0018] In the technical solution of the utility model, a high-tension nozzle head for a semi-solid magnesium alloy injection molding machine is proposed, wherein the nozzle head includes a nozzle part and a stop part, the nozzle part is provided with a straight channel having an inlet and an outlet, one end of the inlet of the straight channel is used to connect to the semi-solid magnesium alloy injection molding machine, the stop part is arranged at the outlet of the nozzle part and is located at the end of the nozzle part away from the semi-solid magnesium alloy injection molding machine, the stop part is used to divide the outlet into a plurality of spray holes, when the nozzle head finishes spraying, the semi-solid slurry will produce a wall hanging phenomenon due to the tension between it and the inner wall of the spray hole, thereby avoiding the occurrence of slurry casting phenomenon, and reducing the risk of high-temperature slurry dripping and causing the mold parting surface to be stained with slurry and increase the risk of fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0020] Figure 1 A schematic diagram of the three-dimensional structure of a first embodiment of a high-tension nozzle head of a semi-solid magnesium alloy injection molding machine provided by the utility model;

[0021] Figure 2 for Figure 1 A cross-sectional view of a high tension nozzle head of a semi-solid magnesium alloy injection molding machine;

[0022] Figure 3It is a three-dimensional structural schematic diagram of the second embodiment of the high-tension nozzle head of the semi-solid magnesium alloy injection molding machine of the utility model;

[0023] Figure 4 It is a three-dimensional structural schematic diagram of a third embodiment of a high-tension nozzle head of a semi-solid magnesium alloy injection molding machine of the utility model;

[0024] Figure 5 It is a three-dimensional structural schematic diagram of a fourth embodiment of a high-tension nozzle head of a semi-solid magnesium alloy injection molding machine of the utility model.

[0025] Description of Figure Numbers:

[0026]

[0027] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0028] 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 of 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.

[0029] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0030] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0031] Semi-solid magnesium alloy injection molding machine is a mechanical device used to manufacture magnesium alloy parts. It heats the magnesium alloy material to liquid state and then injects it into a pre-designed casting mold. The metal fills the cavity in the mold through high pressure and forms the desired part shape after cooling.

[0032] For semi-solid magnesium alloy injection molding machines, as the size of the semi-solid magnesium alloy injection molding machine increases, the gate of the mold will also become larger, and the inner diameter of the nozzle head that matches it will also need to become larger. However, when the inner diameter of the nozzle head increases to a certain extent, the surface tension of the semi-solid slurry is limited, and the semi-solid slurry will flow out of the nozzle head, resulting in a casting phenomenon.

[0033] In order to solve the above problems, the utility model proposes a high-tension nozzle head for a semi-solid magnesium alloy injection molding machine, aiming to provide a high-tension nozzle head that can prevent the semi-solid slurry from producing casting phenomenon. Figures 1 to 5 The figure is a schematic structural diagram of an embodiment of the nozzle head of the utility model.

[0034] Please refer to Figures 1 to 5 The utility model proposes a high-tension nozzle head 1000 of a semi-solid magnesium alloy injection molding machine, the nozzle head comprises a nozzle part 1, the nozzle part 1 is provided with a straight channel 1c having an inlet 1a and an outlet 1b, the outlet 1b is in communication with a spray hole 11, the semi-solid magnesium alloy material flows into the straight channel 1c through the inlet 1a and then flows out from the spray hole 11, and the spray hole 11 is a composite hole.

[0035] In the technical scheme of the utility model, a high-tension nozzle head 1000 of a semi-solid magnesium alloy injection molding machine is proposed. The high-tension nozzle head 1000 of the semi-solid magnesium alloy injection molding machine includes a nozzle part 1 and a stopper 2. The nozzle part 1 is provided with a straight channel 1c having an inlet 1a and an outlet 1b. One end of the inlet 1a of the straight channel 1c is used to connect to the semi-solid magnesium alloy injection molding machine. The stopper 2 is provided at the outlet 1b of the nozzle part 1 and is located at the end of the nozzle part 1 away from the semi-solid magnesium alloy injection molding machine. The stopper 2 is used to separate the outlet 1b into a plurality of spray holes 11. When the high-tension nozzle head 1000 of the semi-solid magnesium alloy injection molding machine finishes spraying, the semi-solid slurry will produce a wall hanging phenomenon due to the tension between it and the inner wall of the spray hole 11, thereby avoiding the occurrence of slurry casting phenomenon and reducing the risk of high-temperature slurry dripping and causing the mold parting surface to be stained with slurry and increase the risk of fire.

[0036] In order to make the structure of the high-tension nozzle head 1000 of the semi-solid magnesium alloy injection molding machine more stable and reliable, the stopper 2 and the nozzle part 1 are an integrally formed structure. For details, please refer to Figures 1 to 5The one-piece molding of the stopper 2 and the nozzle part 1 eliminates the seams at the connection and improves the stability and durability of the high-tension nozzle head 1000 of the semi-solid magnesium alloy injection molding machine. This design can reduce the risk of leakage and ensure the accuracy and consistency of the sprayed slurry. In addition, the one-piece molding structure of the high-tension nozzle head 1000 of the semi-solid magnesium alloy injection molding machine can also reduce material waste, simplify the production process, and improve production efficiency. In general, the application of the one-piece molding structure of the stopper 2 and the nozzle part 1 makes the high-tension nozzle head 1000 of the semi-solid magnesium alloy injection molding machine more reliable and durable, while improving production efficiency and product quality.

[0037] It should be noted that in order to provide a more appropriate tension for the slurry without affecting the slurry injection, the thickness of the stopper 2 along the axial direction of the straight channel 1c is between 25 mm and 35 mm, and the thickness is preferably 30 mm. When the density of the slurry is relatively large and the fluidity is poor, a stopper 2 with a thickness of 25 mm is selected. At this time, the stopper 2 has less resistance to the flow of the slurry and can also provide sufficient tension to prevent the slurry from dripping; correspondingly, when the density of the slurry is relatively small and the fluidity is good, a stopper 2 with a thickness of 35 mm is selected. At this time, due to the greater depth of the spray hole 11 between the stopper 2, the slurry will have a larger contact area with the inner wall of the spray hole 11, thereby forming a greater surface tension, and the slurry is not easy to drip at the nozzle mouth.

[0038] Further, the material of the high-tension nozzle head 1000 of the semi-solid magnesium alloy injection molding machine can be a heat-resistant alloy material or a ceramic material, and the utility model does not limit this. In one embodiment of the utility model, the high-tension nozzle head 1000 of the semi-solid magnesium alloy injection molding machine is made of alloy steel, which has excellent wear resistance and corrosion resistance and can maintain stability under high temperature and high pressure environments. This allows the nozzle head 1000 to be used for a long time without being easily worn or corroded, thereby increasing the service life of the mold. Secondly, the alloy steel material has high strength and hardness and can withstand the force and impact during high-pressure injection. The choice of this material can ensure that the high-tension nozzle head 1000 of the semi-solid magnesium alloy injection molding machine will not be deformed or damaged during the production process, ensuring the accuracy and consistency of the injection fluid. In addition, the alloy steel also has good thermal conductivity, which can quickly conduct heat and maintain a stable temperature of the high-tension nozzle head 1000 of the semi-solid magnesium alloy injection molding machine. This helps to improve the production efficiency and product quality of the mold.

[0039] It can be understood that the surface tension of the semi-solid magnesium alloy slurry at the outlet 1b of the nozzle part 1 is perpendicular to the sideline of the outlet 1b, so the total length of the sideline determines the size of the surface tension. The longer the total length of the sideline, the greater the surface tension, and the less likely the slurry will leak out. The area of ​​the spray hole 11 determines the efficiency of the slurry spraying. If the area of ​​the spray hole 11 is too small, it is not conducive to the spraying of the slurry. Therefore, the technical solution proposes a variety of specific embodiments for extending the total length of the sideline while ensuring the area of ​​the spray hole 11.

[0040] In the first embodiment of the present invention, the high tension nozzle head 1000 of the semi-solid magnesium alloy injection molding machine is provided with five spray holes 11. For details, please refer to Figure 1 and Figure 2 , the center hole 112 is located in the center, and the axial direction of the center hole 112 coincides with the axial direction of the straight channel 1c. The other four nozzle holes 11 are spindle-shaped through holes 111, and the four spindle-shaped through holes 111 are evenly arranged around the circumference of the center hole 112. In actual production and manufacturing, the total area of ​​the nozzle holes 11 in the first embodiment is 3510 mm2, and the total length of the edge line is 250.8 mm. The area of ​​the nozzle holes 11 of 3510 mm2 can ensure the smooth injection of the slurry. In this embodiment, each nozzle hole 11 can also provide a larger slurry surface tension.

[0041] In the second embodiment of the present invention, the high tension nozzle head 1000 of the semi-solid magnesium alloy injection molding machine is provided with two spray holes 11. For details, please refer to Figure 3 The two spray holes 11 are two half-moon annular holes 113 symmetrically arranged along the axial direction of the straight channel 1c. In actual production and manufacturing, the total area of ​​the spray holes 11 in the first embodiment is 4147 mm2, and the total length of the edge line is 185.4 mm. The spray hole 11 area of ​​4147 mm2 can ensure the smooth injection of the slurry. In this embodiment, each spray hole 11 can also provide a larger slurry surface tension.

[0042] In the third embodiment of the present invention, the high tension nozzle head 1000 of the semi-solid magnesium alloy injection molding machine is provided with four spray holes 11. For details, please refer to Figure 4 The four spray holes 11 are four circular holes 114, and the four circular holes 114 are evenly arranged along the circumference of the straight channel 1c. In the third embodiment, the total area of ​​the spray holes 11 is 2827 mm2, and the total length of the edge line is 188.5 mm. The spray hole 11 area of ​​2827 mm2 can ensure the smooth injection of the slurry. In this embodiment, each spray hole 11 can also provide a larger slurry surface tension.

[0043] In the fourth embodiment of the present invention, the high tension nozzle head 1000 of the semi-solid magnesium alloy injection molding machine is provided with four spray holes 11, and the four spray holes 11 are four spindle-shaped through holes 111. For details, please refer to Figure 5 The four spray holes 11 are four spindle-shaped through holes 111, and the four spindle-shaped through holes 111 are evenly arranged along the circumference of the straight channel 1c. In the fourth embodiment, the total area of ​​the spray holes 11 is 3402 mm2, and the total length of the edge line is 229.7 mm. The spray hole 11 area of ​​3402 mm2 can ensure smooth injection of the slurry. In this embodiment, each spray hole 11 can also provide a larger slurry surface tension.

[0044] In order to achieve a better injection effect, the high tension nozzle head 1000 of the semi-solid magnesium alloy injection molding machine includes a straight channel 1c and a tapered channel 1d connected to each other. For details, please refer to Figure 2 The tapered channel 1d connects the inlet 1a and the straight channel 1c, and the cross-sectional area of ​​the tapered channel 1d gradually decreases from the inlet 1a to the straight channel 1c, so that the slurry has a higher pressure before being sprayed out.

[0045] The utility model also proposes a semi-solid magnesium alloy injection molding machine, which includes a high-tension nozzle head 1000 of the semi-solid magnesium alloy injection molding machine. The specific structure of the high-tension nozzle head 1000 of the semi-solid magnesium alloy injection molding machine refers to the above-mentioned embodiment. Since the semi-solid magnesium alloy injection molding machine adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here one by one.

[0046] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A high tension nozzle head for a semi-solid magnesium alloy injection molding machine, characterized in that: include: A nozzle part, wherein the nozzle part is provided with a straight channel having an inlet and an outlet, wherein the outlet is in communication with a spray hole, and the semi-solid magnesium alloy material flows into the straight channel through the inlet and then flows out from the spray hole; The spray hole is a composite hole.

2. A high tension nozzle head for a semi-solid magnesium alloy injection molding machine as claimed in claim 1, characterized in that: The composite hole is a symmetrical half-moon ring-shaped hole.

3. A high tension nozzle head for a semi-solid magnesium alloy injection molding machine as claimed in claim 1, characterized in that: The composite holes are four symmetrical through holes.

4. A high tension nozzle head for a semi-solid magnesium alloy injection molding machine as claimed in claim 3, characterized in that: The composite hole is a spindle-shaped through hole.

5. The high tension nozzle head of a semi-solid magnesium alloy injection molding machine as claimed in claim 1, characterized in that: The composite hole is a combination of a central through hole and a spindle-shaped through hole, and the spindle-shaped through holes are four symmetrical through holes surrounding the central through hole.

6. A high tension nozzle head for a semi-solid magnesium alloy injection molding machine as claimed in claim 5, characterized in that: A stopper is formed between the central through hole and the four spindle-shaped through holes, and the thickness of the stopper along the axial direction of the straight channel is D, 25 mm≤D≤35 mm.

7. A high tension nozzle head for a semi-solid magnesium alloy injection molding machine as claimed in claim 1, characterized in that: The total length of the side line of the composite hole is L, 160mm<L<260mm, and the total area of ​​the composite hole is S, 2800mm2<S<4200mm2.

8. A high tension nozzle head for a semi-solid magnesium alloy injection molding machine as claimed in any one of claims 1 to 7, characterized in that: The high-tension nozzle head of the semi-solid magnesium alloy injection molding machine is made of alloy steel.

Images