A quick-release tooling for the gating sleeve of an automotive wheel hub mold

Abstract

This utility model discloses a quick-release tooling for the sprue sleeve of an automotive wheel hub mold, including a positioning plate and a connecting plate. The positioning plate is screwed with a central screw, and a supporting member is connected to the upper end of the central screw. The connecting plate is fitted onto the central screw, and three claws are rotatably connected to the connecting plate through a movable member. The claws hook onto the sprue sleeve. Tightening the central screw causes the supporting member to move downward, and the supporting member pushes the connecting plate and the claws to move and remove the sprue sleeve. The claws insert into the interior of the sprue sleeve and hook onto the step of the sprue sleeve. Tightening the positioning plate makes it contact with the protective sleeve. Then, tightening the central screw causes the conical head to move downward, and the conical head pushes the connecting plate, U-shaped head, and claws downward. The claws cause the sprue sleeve to separate from the bottom mold. This allows for quick replacement of the sprue sleeve without disassembling the overall mold upper part.

Description

Technical Field

[0001] This utility model relates to the field of wheel hub mold technology, specifically a quick-release tooling for the gate sleeve of an automotive wheel hub mold. Background Technology

[0002] Generally, the sprue bushing of a low-pressure automotive wheel hub mold can have a service life of about 200 to 500 units depending on the wheel structure. However, due to severe corrosion, it needs to be replaced in time. Otherwise, defects will occur near the sprue of the finished wheel, resulting in poor quality and scrap.

[0003] Low-pressure wheel hub molds require heating to around 500 degrees Celsius for use. Since the main raw material for wheel hubs is aluminum alloy, the aluminum blocks need to be heated to around 1000 degrees Celsius to melt. Normally, they are then injected into the mold under certain pressure at around 800 degrees Celsius. All the molten aluminum must pass through the sprue bushing, so the lifespan of the sprue bushing is limited. It is also prone to corrosion and needs to be replaced in time after reaching a certain lifespan. Otherwise, the area around the sprue bushing will be severely corroded, causing dents and resulting in defective and scrapped wheels.

[0004] Traditional replacement methods require removing the upper mold portion of the mold. Due to severe corrosion and oxides at the joint between the sprue bushing and the bottom mold after use, and the solidification of molten aluminum on the surface after the temperature drops, each replacement of the sprue bushing requires complete removal of the upper mold portion of the mold. The removal process involves using a hammer and iron blocks to strike the sprue bushing, making the process time-consuming and laborious. Utility Model Content

[0005] The purpose of this utility model is to provide a quick-release tooling for the gate sleeve of an automotive wheel hub mold, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a quick disassembly tooling for a sprue sleeve of an automotive wheel hub mold, comprising a positioning pressure plate, wherein a central screw is screwed onto the positioning pressure plate, and a support member is connected to the upper end of the central screw. Twisting the central screw controls the up-and-down movement of the support member, which can realize the automatic synchronous opening of the three claws and stably hook the sprue sleeve.

[0007] The connecting plate is fitted onto the central screw. The connecting plate is rotatably connected to three claws via a movable component. The claws hook onto the sprue sleeve. Tightening the central screw causes the supporting component to move downwards. The supporting component pushes the connecting plate and the claws to move and remove the sprue sleeve. The operation is simple.

[0008] Furthermore, the supporting member has a conical head, and the claws have inclined surfaces corresponding to the conical head, ensuring that all three claws stably hook onto the sprue sleeve, preventing slippage when disassembling the sprue sleeve.

[0009] Furthermore, a round bar wrench is inserted into the lower end of the central screw, which allows for easier rotation of the central screw.

[0010] Furthermore, the movable part includes a U-shaped head and a connecting screw. The claw is inserted into the U-shaped head, and the connecting screw passes through the claw and is screwed to the U-shaped head. The claw has a hole seat at its end, and the claw is fitted onto the surface of the connecting screw through the hole seat to realize the rotational installation of the claw. The rotating claw smoothly engages with the sprue sleeve.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] (1) Insert the cleaver into the inside of the sprue sleeve and hook it onto the step of the sprue sleeve. Rotate the positioning plate to contact the protective sleeve. Then turn the center screw to drive the conical head to move down. The conical head pushes the connecting plate, U-shaped head and cleaver to move down. The cleaver drives the sprue sleeve to separate from the bottom mold. This allows for quick replacement of the sprue sleeve without disassembling the upper mold part of the mold.

[0013] (2) Tighten the center screw to drive the conical head to move up. The conical head can control the three jaws to open synchronously, ensuring that the three jaws simultaneously engage with the step of the sprue sleeve, improving the stability of the connection between the sprue sleeve and the jaws, and making the disassembly of the sprue sleeve more stable. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present utility model;

[0015] Figure 2 This is a schematic diagram showing the disassembled parts of this utility model;

[0016] Figure 3 This is a schematic diagram of the claw hook holding the gate sleeve of this utility model.

[0017] In the diagram: 1. Claw; 2. Conical head; 3. U-shaped head; 4. Connecting screw; 5. Positioning plate; 6. Fixing nut; 7. Center screw; 8. Round bar wrench; 9. Connecting plate; 10. Hole seat; 11. Bottom mold; 12. Protective sleeve; 13. Sprue sleeve; 14. Upper mold. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example:

[0020] Please see Figure 1-3This utility model provides a technical solution: a quick disassembly tooling for the gate sleeve of an automobile wheel hub mold, including a positioning pressure plate 5, which is long and strip-shaped, and the length of the positioning pressure plate 5 is greater than the diameter of the protective sleeve 12. The positioning pressure plate 5 is screwed with a central screw 7, and the upper end of the central screw 7 is connected to a support member.

[0021] A connecting plate 9 is fitted onto a central screw 7 and can slide along the central screw 7. The connecting plate 9 is rotatably connected to three claws 1 via a movable component. The claws 1 can rotate to hook onto the sprue sleeve 13. The expanding component moves upward to expand the three claws 1 and hook onto the sprue sleeve 13. Tightening the central screw 7 causes the expanding component to move downward, which pushes the connecting plate 9 and the claws 1 to move and remove the sprue sleeve 13, simplifying the disassembly steps of the sprue sleeve 13 and improving the replacement speed.

[0022] In this embodiment, as Figure 1 As shown, a fixing nut 6 is welded to the middle of the positioning plate 5, and the central screw 7 is screwed to the positioning plate 5 through the fixing nut 6, thereby realizing the screw connection between the positioning plate 5 and the central screw 7, and the central screw 7 can move smoothly up and down when it is turned.

[0023] In this embodiment, as Figure 1 and Figure 2 As shown, the opening component is a conical head 2, and the claw 1 has an inclined surface corresponding to the conical head 2. The conical head 2 presses against the inclined surface of the claw 1 to achieve synchronous opening of the three claws 1, ensuring that the claw 1 stably hooks the sprue sleeve 13.

[0024] In this embodiment, as Figure 1 and Figure 2 As shown, a round bar wrench 8 is inserted into the lower end of the central screw 7. The round bar wrench 8 can be used to turn the central screw 7 with less effort. The steel pipe can also be put on the round bar wrench 8 to make it easier to turn the central screw 7.

[0025] In this embodiment, as Figure 1 and Figure 2 As shown, the movable part includes a U-shaped head 3 and a connecting screw 4. The claw 1 is inserted into the U-shaped head 3, and the connecting screw 4 passes through the claw 1 and is screwed to the U-shaped head 3. The end of the claw 1 is provided with a hole seat 10. The claw 1 is sleeved on the surface of the connecting screw 4 through the hole seat 10 to ensure that the claw 1 will not separate from the U-shaped head 3 while rotating.

[0026] Specifically, in use, the bottom mold 11 and the upper mold 14 do not need to be separated. The three claws 1 are inserted into the step inside the sprue sleeve 13. The central screw 7 is turned to drive the conical head 2 to press against the three claws 1, so that the three claws 1 are tightly locked at the step of the sprue sleeve 13. Then, the fixing nut 6 is turned to drive the positioning plate 5 to move, so that the positioning plate 5 moves to the plane position of the protective sleeve 12 of the bottom mold 11. Then, the central screw 7 is turned with the round bar wrench 8. The central screw 7 drives the conical head 2 to move down. The conical head 2 pushes the connecting plate 9 and the U-shaped head 3 downward. The U-shaped head 3 drives the claws 1 to move down through the connecting screw 4. The claws 1 hook the sprue sleeve 13 and separate the sprue sleeve 13 from the bottom mold 11, so that the sprue sleeve 13 can be quickly disassembled without removing the upper mold 14. The sprue sleeve 13 is more convenient to disassemble.

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

Claims

1. A quick-release tooling for the gate sleeve of an automotive wheel hub mold, characterized in that, include: Positioning pressure plate (5), the positioning pressure plate (5) is screwed with a central screw (7), and the upper end of the central screw (7) is connected to a support member; A connecting plate (9) is fitted onto a central screw (7). The connecting plate (9) is rotatably connected to three claws (1) via a movable component. The claws (1) hook onto the sprue sleeve (13). The central screw (7) is turned to make the supporting component move down. The supporting component pushes the connecting plate (9) and the claws (1) to move and remove the sprue sleeve (13).

2. The quick-release tooling for the gate sleeve of an automotive wheel hub mold according to claim 1, characterized in that: A fixing nut (6) is welded to the middle of the positioning plate (5), and the central screw (7) is screwed to the positioning plate (5) through the fixing nut (6).

3. The quick-release tooling for the gate sleeve of an automotive wheel hub mold according to claim 1, characterized in that: The opening member is a conical head (2), and the claw (1) has an inclined surface corresponding to the conical head (2).

4. The quick-release tooling for the gate sleeve of an automotive wheel hub mold according to claim 1, characterized in that: A round bar wrench (8) is inserted into the lower end of the central screw (7).

5. The quick-release tooling for the gate sleeve of an automotive wheel hub mold according to claim 1, characterized in that: The movable part includes a U-shaped head (3) and a connecting screw (4). The claw (1) is inserted into the U-shaped head (3), and the connecting screw (4) passes through the claw (1) and is screwed to the U-shaped head (3).

6. The quick-release tooling for the gate sleeve of an automotive wheel hub mold according to claim 5, characterized in that: The end of the claw (1) is provided with a hole seat (10), and the claw (1) is fitted onto the surface of the connecting screw (4) through the hole seat (10).

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