Nozzle material separating mechanism for injection mold

Abstract

The utility model discloses a nozzle material separating mechanism for an injection mold, which comprises a top plate, a nozzle plate and a blowing valve, the nozzle plate is erected at the lower end of the top plate, a mold cavity is arranged in the middle of the nozzle plate, bosses with a limiting function are milled on the nozzle plate along two sides of the mold cavity, a top mold is erected on the nozzle plate along the inner wall of the mold cavity, and the blowing valve is arranged on the top mold. A groove is formed in the top mold along the boss, an air blowing valve is embedded in the center of the water gap plate along the boss, and one end of the air blowing valve is communicated with an air nozzle. When the nozzle material separating mechanism for the injection mold is used, the sealing cover plate serves as a shielding piece, in the injection molding process of the mold, the sealing cover plate designed on the horizontal plane shields the groove, it is guaranteed that no obvious trace exists when injection molding rubber flows into the plane position, solidification forming of a workpiece cannot be affected, the forming integrity of the workpiece is guaranteed, and the service life of the injection mold is prolonged. And the forming rate of workpieces is improved.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to an injection mold nozzle separation mechanism. Background Technology

[0002] Injection molding, also known as injection molding, is a molding method that combines injection and molding. The advantages of injection molding are its fast production speed and high efficiency. During the injection molding process, demolding is required, and a sprue will appear between the workpiece and the mold. The sprue refers to the joint between the frame formed during injection molding and the part. It also needs to be demolded along with the workpiece. Conventionally, the sprue is removed along with the workpiece by being sucked down by negative pressure.

[0003] In existing mold products, after the material is ejected, the sprue is often stuck in the mold, which affects the normal operation of the injection molding machine, reduces the company's profitability, and causes trouble for users. To address this, we propose a sprue material separation mechanism for injection molds. Utility Model Content

[0004] The purpose of this utility model is to provide a material separation mechanism for injection molds to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sprue material separation mechanism for injection molds, comprising a top plate, a sprue plate, and an air valve. The sprue plate is mounted on the lower end of the top plate, and a mold groove is formed in the middle of the sprue plate. A limiting boss is milled along both sides of the mold groove on the sprue plate. A top mold is mounted on the inner wall of the mold groove on the sprue plate, and a groove is formed along the boss position on the top mold. An air valve is embedded in the center of the boss on the sprue plate, and one end of the air valve is connected to an air nozzle.

[0006] Preferably, an injection head is embedded in the inner center of the top mold.

[0007] Preferably, a water-cooling pipe with cooling function is connected to one side of the sprue plate, and guide posts are inserted around the top plate and the sprue plate.

[0008] Preferably, the air blowing valve is connected to an air compressor via a pipe, and the air compressor delivers compressed air to the air nozzle through the pipe and the air blowing valve, and the air nozzle blows the sprue material off.

[0009] Preferably, the groove is filled with a sealing cover plate with a horizontal surface design, and the dimensions of the sealing cover plate and the groove are matched.

[0010] Preferably, one end of the sealing cover is stamped with a connector, and a return spring is wound around the outer wall of the connector. The sealing cover is connected to the top mold via the connector and the return spring through a spring return connection.

[0011] Preferably, the air nozzle passes through the boss and is embedded in the groove, and the sealing cover plate blocks and protects the air nozzle.

[0012] Compared with the prior art, the beneficial effects of this utility model are: when the injection mold uses the water discharge separation mechanism, the sealing cover plate acts as a shielding component. During the injection molding process, the sealing cover plate with its horizontal design shields the groove, ensuring that when the injection plastic flows into the plane position, there are no obvious traces, thus not affecting the solidification and molding of the workpiece, ensuring the integrity of the workpiece molding, and improving the molding rate of the workpiece.

[0013] This structure incorporates an air-blowing valve in the mold. The air-blowing valve works simultaneously the instant the item is sucked away by the suction cup, blowing off any excess sprue. This structure is highly responsive, ensuring the complete removal of the workpiece and improving the yield of injection-molded parts. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a three-dimensional structural diagram of the sprue plate of this utility model;

[0016] Figure 3 This utility model Figure 1 A magnified schematic diagram of the structure at point A in the middle.

[0017] In the diagram: 1. Top plate; 2. Sprue plate; 21. Mold groove; 22. Boss; 3. Guide post; 4. Top mold; 41. Groove; 5. Injection head; 6. Water cooling pipe; 7. Air valve; 71. Air nozzle; 8. Sealing cover plate; 81. Connector; 82. Return spring. 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] Please see Figure 1-3This utility model provides a technical solution: a water outlet material separation mechanism for injection molds, including a top plate 1, a sprue plate 2, and an air valve 7. The sprue plate 2 is mounted on the lower end of the top plate 1. A mold groove 21 is opened in the middle of the sprue plate 2, and the sprue plate 2 has a limiting boss 22 milled on both sides of the mold groove 21. A top mold 4 is mounted on the inner wall of the sprue plate 2 along the mold groove 21, and a groove 41 is opened on the top mold 4 along the position of the boss 22. An air valve 7 is embedded in the center of the sprue plate 2 along the boss 22, and one end of the air valve 7 is connected to an air nozzle 71. An injection head 5 is embedded in the middle of the inner side of the top mold 4. A water cooling pipe 6 with a cooling function is connected to one side of the sprue plate 2, and guide posts 3 are inserted around the top plate 1 and the sprue plate 2. The inner wall of the sprue plate 2 is provided with a boss 22, and the boss 22 and the mold groove 21 meet the connection requirements with the top mold 4.

[0020] One end of the sealing cover plate 8 is stamped with a connector 81, and a return spring 82 is wound around the outer wall of the connector 81. The sealing cover plate 8 is connected to the top mold 4 by a spring return connection through the connector 81 and the return spring 82. The sealing cover plate 8 acts as a shielding component. During the injection molding process, the sealing cover plate 8 blocks the air nozzle 71 to be blown. When the workpiece is being formed, the horizontally designed sealing cover plate 8 blocks the groove 41. When the injection molding material flows into this plane, there are no obvious marks, so it will not affect the solidification and forming of the workpiece, ensuring the integrity of the workpiece forming and improving the forming rate of the workpiece. At the same time, when the workpiece is demolded, the sealing cover plate 8 is pushed by air pressure. The sealing cover plate 8 rotates axially along the center of the connector 81, opening the groove 41. The air nozzle 71 assists in peeling off the sprue of the workpiece. At the same time, when the sealing cover plate 8 has no pushing force, the sealing cover plate 8 rebounds and resets through the return spring 82, continuing to block the groove 41.

[0021] The air blowing valve 7 is connected to an air compressor via a pipe, and the air compressor delivers compressed air to the air nozzle 71 through the pipe and air blowing valve 7. The air nozzle 71 blows off the sprue material. The groove 41 is filled with a horizontally designed sealing cover plate 8, and the size of the sealing cover plate 8 matches that of the groove 41. The air nozzle 71 passes through the boss 22 and is embedded in the groove 41, and the sealing cover plate 8 blocks and protects the air nozzle 71. The air blowing valve 7 acts as a connecting valve for compressed air, controlling the flow of gas into the air nozzle 71. When the user needs to perform assisted stripping, the air compressor is started and the air blowing valve 7 is opened. Compressed air is delivered to the air nozzle 71 through the pipe and air blowing valve 7, and the air nozzle 71 blows off the sprue material. This structure adds an air blowing valve structure to the mold. When the item is sucked away by the suction cup, the air blowing valve 7 works simultaneously to blow off the excess sprue. This structure is sensitive and ensures that the workpiece is completely removed, improving the yield of injection molded workpieces.

[0022] Working principle: For this type of injection mold using a sprue separation mechanism, when the workpiece is demolded, its sealing cover plate 8 is pushed by air pressure. At this time, the sealing cover plate 8 rotates axially around the center of the connector 81, opening the groove 41. Simultaneously, when the user needs to perform assisted peeling, the air compressor is started and the air blowing valve 7 is opened. Compressed air is delivered to the air nozzle 71 through the pipe and air blowing valve 7, and the air nozzle 71 blows off the sprue material. The air nozzle 71 assists in peeling the sprue of the workpiece. Subsequently, when the sealing cover plate 8 has no pushing force, the sealing cover plate 8 returns to its original position through the return spring 82, continuing to block the groove 41. Finally, the user can remove the injection-molded workpiece.

Claims

1. A sprue separation mechanism for injection molds, comprising a top plate (1), a sprue plate (2), and an air blowing valve (7), characterized in that: A sprue plate (2) is mounted on the lower end of the top plate (1). A mold groove (21) is opened in the middle of the sprue plate (2). A boss (22) with a limiting function is milled on both sides of the mold groove (21). A top mold (4) is mounted on the inner wall of the mold groove (21) of the sprue plate (2). A groove (41) is opened on the top mold (4) along the position of the boss (22). An air blowing valve (7) is embedded in the center position of the sprue plate (2) along the boss (22). One end of the air blowing valve (7) is connected to an air nozzle (71).

2. The injection mold nozzle separation mechanism according to claim 1, characterized in that: An injection head (5) is embedded in the middle of the inner side of the top mold (4).

3. The injection mold nozzle separation mechanism according to claim 1, characterized in that: The sprue plate (2) is connected to a water-cooled pipe (6) with cooling function on one side, and guide posts (3) are inserted around the top plate (1) and the sprue plate (2).

4. The injection mold nozzle separation mechanism according to claim 1, characterized in that: The air blowing valve (7) is connected to the air compressor through a pipe, and the air compressor delivers compressed air to the air nozzle (71) through the pipe and the air blowing valve (7), and the air nozzle (71) blows the sprue material.

5. The injection mold nozzle separation mechanism according to claim 1, characterized in that: The groove (41) is filled with a sealing cover plate (8) with a horizontal surface design, and the dimensions of the sealing cover plate (8) and the groove (41) are matched.

6. The injection mold nozzle separation mechanism according to claim 5, characterized in that: One end of the sealing cover plate (8) is stamped with a connector (81), and a return spring (82) is wound around the outer wall of the connector (81). The sealing cover plate (8) is connected to the top mold (4) by the connector (81) and the return spring (82) through a spring return connection.

7. The injection mold nozzle separation mechanism according to claim 6, characterized in that: The air nozzle (71) passes through the boss (22) and is embedded in the groove (41), and the sealing cover (8) blocks and protects the air nozzle (71).

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