Nozzle structure for zinc-aluminum alloy die-casting mold

Abstract

The utility model discloses a nozzle structure for a zinc-aluminum alloy die-casting mold, which belongs to the technical field of die-casting molds, aims at solving the problem that the quality of a die-casting fitting is unstable due to the fact that the nozzle structure cannot enable molten metal to be in a molten state in the whole process, and comprises a nozzle main body, a nozzle positioning ring, a nozzle protection shell, an internal structure, a connecting cylinder and a connecting structure, the nozzle positioning ring is fixedly connected to the upper portion of the outer portion of the nozzle body through bolts, the nozzle protection shell is fixedly connected to the lower portion of the outer portion of the nozzle body, the internal structure is arranged in the nozzle body, and the connecting cylinder is arranged above the nozzle body through the connecting structure. Through the arrangement of the nozzle body and the internal structure, in the whole working process, a nozzle system is heated to the working temperature in the whole process, it is guaranteed that zinc-aluminum alloy materials are in a molten state in the whole process, the fluidity of the materials is guaranteed, meanwhile, after filling is completed, material breaking can be automatically completed at a material breaking opening, smooth mold opening is guaranteed, and the quality of die castings is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of die casting dies, and in particular relates to a nozzle structure for a zinc-aluminum alloy die casting die. Background Art

[0002] The die casting mold is an important tool used in the die casting process to manufacture metal die castings. It is usually made of die steel or other high-strength materials, has a complex internal structure, and is used to inject and cool molten metal into the desired shape. In the zinc-aluminum alloy die casting process, the nozzle is a key component connecting the die casting machine and the mold. Its performance directly affects the injection effect of the molten metal and the quality of the die casting. This is a nozzle for zinc-aluminum alloy die casting molds. It is a cross-industry application. Usually, the hot runner system is only used for injection plastic molds. Its characteristics are used for injection molding metal products and die casting molds.

[0003] This places higher demands on nozzle materials, heaters, and thermocouples.

[0004] In the existing technology, hot runner systems are usually only used for injection molding plastic molds. However, in the zinc-aluminum alloy die-casting process, the material of the die-cast product is zinc-aluminum alloy, and its operating temperature needs to reach between 450 degrees and 600 degrees. The requirements for the nozzle material, heater, and thermocouple are higher. The traditional nozzle structure cannot keep the molten metal in a molten state throughout the process, and the fluidity of the molten metal cannot be guaranteed, resulting in nozzle blockage, unstable quality of die-cast parts, and low production efficiency.

[0005] Therefore, a nozzle structure for a zinc-aluminum alloy die-casting mold is needed to solve the problem in the prior art that the nozzle structure cannot keep the molten metal in a molten state throughout the entire process, resulting in unstable quality of the die-casting. Utility Model Content

[0006] The purpose of the present utility model is to provide a nozzle structure for a zinc-aluminum alloy die-casting die, so as to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a nozzle structure for a zinc-aluminum alloy die-casting mold, comprising a nozzle body, a nozzle positioning ring, a nozzle protective shell, an internal structure, a connecting tube and a connecting structure, wherein the nozzle positioning ring is fixedly connected to the upper outside of the nozzle body by bolts, the nozzle protective shell is fixedly connected to the lower outside of the nozzle body, the internal structure is arranged inside the nozzle body, and the connecting tube is arranged above the nozzle body through the connecting structure.

[0008] The internal structure consists of a feed port, a flow channel, a cut-off port, a discharge port, a heater and a thermocouple. The feed port is opened on the top surface of the nozzle body. The flow channel, the cut-off port and the discharge port are opened in sequence below the feed port and are interconnected.

[0009] It should be noted that the heater is evenly embedded in the interior of the nozzle body, the thermocouple is arranged between the nozzle body and the nozzle positioning ring, and the bottom end of the thermocouple extends into the interior of the nozzle body.

[0010] It is further worth mentioning that the bottom shape of the connecting tube is adapted to the top shape of the nozzle body, and a hole having the same diameter as the feed port is provided on the bottom surface of the connecting tube.

[0011] It should be further explained that the connecting structure is composed of a fixed rod, a slider, a first spring, a fixed cylinder, a second spring, a connecting column, a positioning block, a push ring and a protrusion. The bottom surface of the fixed ring of the connecting cylinder is symmetrically provided with a mounting groove. The fixed rod is fixedly connected to the inside of the mounting groove, and the slider is slidably connected to the outside of the fixed rod. The first spring is fixedly connected between the slider and the mounting groove, and is sleeved on the outside of the fixed rod.

[0012] As a preferred embodiment, the fixed cylinder is fixedly connected to the bottom of the slider, the connecting column slides inside the second spring, the second spring is fixedly connected between the inner wall of the fixed cylinder and the connecting column, and the positioning block is fixedly connected to the bottom of the connecting column.

[0013] As a preferred embodiment, a rectangular groove is symmetrically provided on the top surface of the nozzle body, a positioning groove is provided on a side of the rectangular groove close to the outer wall of the nozzle body, and the shape of the positioning groove is adapted to the positioning block.

[0014] As a preferred embodiment, the positioning block is provided with an arc-shaped surface on one side close to the positioning groove, and is provided on the upper and lower sides respectively.

[0015] As a preferred embodiment, the push ring is sleeved on the outside of the nozzle body, the protrusions are symmetrically fixedly connected to the inside of the push ring, and the outer wall of the nozzle body is symmetrically provided with grooves adapted to the protrusions.

[0016] Compared with the prior art, the nozzle structure for zinc-aluminum alloy die-casting mold provided by the present invention has at least the following beneficial effects:

[0017] (1) Through the setting of the nozzle body and internal structure, the nozzle system is heated to the working temperature throughout the entire working process, ensuring that the zinc-aluminum alloy material is in a molten state throughout the process and ensuring the fluidity of the material. At the same time, after the filling is completed, the material can be automatically cut off at the cutting mouth to ensure smooth mold opening and improve the quality of the die casting.

[0018] (2) Through the provided connection structure, the staff can quickly disassemble and assemble the nozzle body, making it convenient for the staff to inspect or clean the interior of the nozzle body, further improving the performance of the nozzle structure and the quality of the die-casting. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the split diagram structure of the utility model;

[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model;

[0022] Figure 4 For the utility model Figure 3 Schematic diagram of the structure at point A in the middle.

[0023] In the figure: 1. Nozzle body; 2. Nozzle positioning ring; 3. Nozzle protective shell; 4. Internal structure; 5. Connecting cylinder; 6. Connecting structure; 401. Feed port; 402. Flow channel; 403. Cut-off port; 404. Discharge port; 405. Heater; 406. Thermocouple; 601. Fixed rod; 602. Slider; 603. First spring; 604. Fixed cylinder; 605. Second spring; 606. Connecting column; 607. Positioning block; 608. Rectangular groove; 609. Positioning groove; 610. Push ring; 611. Bump; 612. Groove. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to the embodiments.

[0025] See also Figure 1-4 The utility model provides a nozzle structure for a zinc-aluminum alloy die-casting mold, including a nozzle body 1, a nozzle positioning ring 2, a nozzle protective shell 3, an internal structure 4, a connecting tube 5 and a connecting structure 6. The nozzle positioning ring 2 is fixedly connected to the upper outside of the nozzle body 1 by bolts, the nozzle protective shell 3 is fixedly connected to the lower outside of the nozzle body 1, the internal structure 4 is arranged inside the nozzle body 1, and the connecting tube 5 is arranged above the nozzle body 1 through the connecting structure 6.

[0026] The internal structure 4 consists of a feed port 401, a flow channel 402, a cut-off port 403, a discharge port 404, a heater 405 and a thermocouple 406. The feed port 401 is opened on the top surface of the nozzle body 1, and the flow channel 402, the cut-off port 403 and the discharge port 404 are opened in sequence below the feed port 401 and are interconnected.

[0027] Further as Figure 1 、 Figure 2 and Figure 3 As shown, it is worth noting that the heater 405 is evenly embedded in the interior of the nozzle body 1, the thermocouple 406 is provided between the nozzle body 1 and the nozzle positioning ring 2, and the bottom end of the thermocouple 406 extends into the interior of the nozzle body 1;

[0028] The heater 405 and the thermocouple 406 are provided to ensure that the metal material is in a molten state throughout the entire process, thereby ensuring the fluidity of the material and improving the quality of the die-casting.

[0029] Further as Figure 1 、 Figure 2 and Figure 3 As shown, it is worth noting that the bottom shape of the connecting tube 5 is adapted to the top shape of the nozzle body 1 , and a hole having the same diameter as the feed port 401 is opened on the bottom surface of the connecting tube 5 .

[0030] According to the above working process, it can be seen that: through the set nozzle body 1 and internal structure 4, during the entire working process, the nozzle system is heated to the working temperature throughout the entire process, ensuring that the zinc-aluminum alloy material is in a molten state throughout the entire process, ensuring the fluidity of the material, and at the same time, after the filling is completed, the material can be automatically cut off at the cutting port 403, ensuring smooth mold opening and improving the quality of the die-casting.

[0031] Further as Figure 1 、 Figure 2 and Figure 4 As shown, it is worth noting that the connecting structure 6 is composed of a fixed rod 601, a slider 602, a first spring 603, a fixed cylinder 604, a second spring 605, a connecting column 606, a positioning block 607, a push ring 610 and a protrusion 611. The bottom surface of the fixed ring of the connecting cylinder 5 is symmetrically provided with a mounting groove, the fixed rod 601 is fixedly connected to the inside of the mounting groove, the slider 602 is slidably connected to the outside of the fixed rod 601, the first spring 603 is fixedly connected between the slider 602 and the mounting groove, and is sleeved on the fixed On the outside of the rod 601, the fixed cylinder 604 is fixedly connected to the bottom of the slider 602, the connecting column 606 slides inside the second spring 605, the second spring 605 is fixedly connected between the inner wall of the fixed cylinder 604 and the connecting column 606, the positioning block 607 is fixedly connected to the bottom of the connecting column 606, and the top surface of the nozzle body 1 is symmetrically provided with a rectangular groove 608. A positioning groove 609 is provided on the side of the rectangular groove 608 close to the outer wall of the nozzle body 1, and the shape of the positioning groove 609 is adapted to the positioning block 607;

[0032] The connection between the nozzle body 1 and the connecting tube 5 can be fixed by the positioning block 607 being inserted into the positioning groove 609 .

[0033] Further as Figure 1 、 Figure 2 and Figure 4 As shown, it is worth noting that the positioning block 607 is provided with an arc surface on one side close to the positioning groove 609, and the upper and lower sides are respectively provided;

[0034] The arc surface provided at the bottom facilitates the positioning block 607 to extend into the interior of the rectangular groove 608. The arc surface provided at the top allows the positioning block 607 to be pushed into the interior of the rectangular groove 608 by the push ring 610. When the nozzle body 1 is pulled down, the positioning groove 609 can press down the upper arc surface, so that the positioning block 607 is completely positioned in the interior of the rectangular groove 608, thereby releasing the connection.

[0035] Further as Figure 1 、 Figure 2 and Figure 4 As shown, it is worth noting that the push ring 610 is sleeved on the outside of the nozzle body 1, the protrusions 611 are symmetrically fixedly connected to the inside of the push ring 610, and the outer wall of the nozzle body 1 is symmetrically provided with grooves 612 adapted to the protrusions 611;

[0036] The protrusion 611 is slidably connected to the inside of the groove 612, which can drive the push ring 610 to move up and down. When moving upward, it pushes the positioning block 607 limited in the positioning groove 609 to the inside of the rectangular groove 608, thereby releasing the connection between the connecting tube 5 and the nozzle body 1. The nozzle body 1 can be disassembled by pulling it down.

[0037] This solution has the following working process: during use, the nozzle body 1 is fixed to the die-casting mold cavity through the connecting tube 5, the zinc-aluminum alloy is heated to a molten state through the heating system on the die-casting machine, and the molten metal is poured into the feed port 401 of the nozzle body 1 through the automatic loading mechanism. The molten metal material flows in the flow channel 402 in the nozzle body 1, flows through the cutting port 403 and the discharge port 404, and the molten metal material enters the die-casting mold cavity to be filled. After the filling is completed, it is cooled and the mold is opened to take out the material; when it is necessary to disassemble the nozzle body 1, the push ring 610 is moved upward to push the positioning block 607 limited in the positioning groove 609 to the inside of the rectangular groove 608, release the connection between the connecting tube 5 and the nozzle body 1, and then pull down the nozzle body 1. The nozzle body 1 can be disassembled, which is convenient for the staff to inspect or clean the nozzle body 1.

[0038] In summary: through the set nozzle body 1 and internal structure 4, during the entire working process, the nozzle system is heated to the working temperature throughout, ensuring that the zinc-aluminum alloy material is in a molten state throughout the process, ensuring the fluidity of the material, and at the same time, after the filling is completed, the material can be automatically cut off at the cutting port 403, ensuring smooth mold opening and improving the quality of die-castings; through the set connection structure 6, the staff can quickly disassemble and assemble the nozzle body 1, which is convenient for the staff to inspect or clean the interior of the nozzle body 1, further improving the performance of the nozzle structure and the quality of the die-castings.

Claims

1. A nozzle structure for a zinc-aluminum alloy die-casting mold, comprising a nozzle body (1), a nozzle positioning ring (2), a nozzle protection shell (3), an internal structure (4), a connecting tube (5) and a connecting structure (6), characterized in that: The nozzle positioning ring (2) is fixedly connected to the upper part of the outside of the nozzle body (1) by means of bolts, the nozzle protection shell (3) is fixedly connected to the lower part of the outside of the nozzle body (1), the internal structure (4) is arranged inside the nozzle body (1), and the connecting tube (5) is arranged above the nozzle body (1) by means of a connecting structure (6); The internal structure (4) is composed of a feed port (401), a flow channel (402), a cut-off port (403), a discharge port (404), a heater (405) and a thermocouple (406); the feed port (401) is opened on the top surface of the nozzle body (1); the flow channel (402), the cut-off port (403) and the discharge port (404) are opened in sequence below the feed port (401) and are interconnected.

2. The nozzle structure for a zinc-aluminum alloy die-casting mold according to claim 1, characterized in that: The heater (405) is evenly embedded in the interior of the nozzle body (1), the thermocouple (406) is arranged between the nozzle body (1) and the nozzle positioning ring (2), and the bottom end of the thermocouple (406) extends into the interior of the nozzle body (1).

3. The nozzle structure for a zinc-aluminum alloy die-casting mold according to claim 1, characterized in that: The bottom shape of the connecting tube (5) is matched to the top shape of the nozzle body (1), and a hole having the same diameter as the feed port (401) is provided on the bottom surface of the connecting tube (5).

4. The nozzle structure for a zinc-aluminum alloy die-casting mold according to claim 3, characterized in that: The connecting structure (6) is composed of a fixing rod (601), a slider (602), a first spring (603), a fixing tube (604), a second spring (605), a connecting column (606), a positioning block (607), a pushing ring (610) and a protrusion (611). The fixing ring of the connecting tube (5) is symmetrically provided with mounting grooves on its bottom surface. The fixing rod (601) is fixedly connected to the inside of the mounting groove. The slider (602) is slidably connected to the outside of the fixing rod (601). The first spring (603) is fixedly connected between the slider (602) and the mounting groove and is sleeved on the outside of the fixing rod (601).

5. The nozzle structure for a zinc-aluminum alloy die-casting mold according to claim 4, characterized in that: The fixed cylinder (604) is fixedly connected to the bottom of the slider (602), the connecting column (606) slides inside the second spring (605), the second spring (605) is fixedly connected between the inner wall of the fixed cylinder (604) and the connecting column (606), and the positioning block (607) is fixedly connected to the bottom of the connecting column (606).

6. The nozzle structure for a zinc-aluminum alloy die-casting mold according to claim 4, characterized in that: A rectangular groove (608) is symmetrically provided on the top surface of the nozzle body (1), and a positioning groove (609) is provided on one side of the rectangular groove (608) close to the outer wall of the nozzle body (1), and the shape of the positioning groove (609) is compatible with the positioning block (607).

7. The nozzle structure for a zinc-aluminum alloy die-casting mold according to claim 6, characterized in that: The positioning block (607) is provided with an arc-shaped surface on one side close to the positioning groove (609), and is provided at the upper and lower sides respectively.

8. The nozzle structure for a zinc-aluminum alloy die-casting mold according to claim 4, characterized in that: The push ring (610) is sleeved on the outside of the nozzle body (1), the protrusion (611) is symmetrically fixedly connected to the inside of the push ring (610), and the outer wall of the nozzle body (1) is symmetrically provided with grooves (612) adapted to the protrusion (611).

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