Nozzle for injection molding machine

Abstract

The utility model relates to the technical field of injection molding machines, in particular to a nozzle for an injection molding machine, which comprises a nozzle body, two sides of the nozzle body are fixedly connected with connecting rods, the surface of each connecting rod is rotatably connected with a connecting block, the bottom end of each connecting block is fixedly connected with a hollow plate, and the inner top wall of each hollow plate is fixedly connected with a telescopic spring. And the bottom end of the telescopic spring is fixedly connected with an extension plate. When the nozzle is used, the nozzle body is connected with an injection molding machine through the second connecting pipe, the connecting plate can be pulled after injection molding is completed, the telescopic spring in the hollow plate is stretched through the extension plate, the connecting plate is moved under the cooperation of the connecting rod and the connecting block, the plug on the connecting plate is located below the nozzle body, and then the connecting plate is loosened; and resilience force generated by the telescopic spring is matched with the hollow plate to pull the extension plate to ascend, so that the plug on the connecting plate is inserted into the nozzle main body, the injection molding material is prevented from leaking, and the effect of preventing the injection molding material from leaking is achieved.

Description

Technical Field

[0001] This utility model relates to the field of injection molding machine technology, specifically to a nozzle for injection molding machines. Background Technology

[0002] Injection molding is a method of shaping industrial products. Products are usually made using rubber injection molding and plastic injection molding. Injection molding can also be divided into injection molding compression molding and die casting. An injection molding machine (or injection molding machine for short) is the main molding equipment that uses plastic molds to make plastic products of various shapes from thermoplastic or thermosetting materials. Injection molding is achieved through an injection molding machine and a mold. When the injection molding machine is performing injection molding, the injection material needs to be injected into the mold, so a nozzle for the injection molding machine is required.

[0003] However, the existing nozzles have weak anti-leakage function. After the injection molding process is completed, some injection material remains inside the nozzle. The injection material will flow out of the nozzle and then solidify on the outside of the nozzle, making it difficult for the device to work properly. In addition, the existing nozzles have poor adjustment effect. During use, the injection molding machine is needed to inject the injection material into the mold. As the injection process continues, the injection material in the mold gradually becomes saturated. If the injection material is continued to be injected into the mold at the same flow rate, the injection material will overflow, affecting the injection quality. Utility Model Content

[0004] The purpose of this invention is to provide a nozzle for an injection molding machine to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A nozzle for an injection molding machine includes a nozzle body. Connecting rods are fixedly connected to both sides of the nozzle body. A connecting block is rotatably connected to the surface of each connecting rod. A hollow plate is fixedly connected to the bottom end of each connecting block. A telescopic spring is fixedly connected to the inner top wall of the hollow plate. An extension plate is fixedly connected to the bottom end of the telescopic spring. A connecting plate is fixedly connected to one side of the extension plate. A plug is fixedly connected to the middle of the top of the connecting plate. A first connecting tube is connected through to the top of the nozzle body. A fixing ring is fixedly connected to the top of the surface of the first connecting tube. A first adjusting plate is fixedly connected to the inner wall of the first connecting tube. A circular hole is opened at the top of the first adjusting plate. A limit rod is rotatably connected inside the circular hole. A second adjusting plate is fixedly connected to the top of the limit rod. An adjusting tube is fixedly connected to one side of the second adjusting plate. A limit component is fixedly connected to the surface of the adjusting tube. A second connecting tube is connected through to the top of the adjusting tube.

[0007] Preferably, the limiting component includes a limiting ring, the inner wall of which is fixedly connected to the surface of the adjusting tube, and a plurality of limiting springs are fixedly connected inside the limiting ring. The bottom end of each limiting spring is fixedly connected to a limiting frame, and a ball bearing is rotatably connected inside the limiting frame.

[0008] Preferably, the top end of the fixing ring is provided with an annular groove, and a rubber pad is fixedly connected inside the annular groove.

[0009] Preferably, a connecting groove is connected to the top end of the surface of the second connecting pipe, and a sealing ring is fixedly connected to the side of the second connecting pipe near the connecting groove.

[0010] Preferably, a sealing gasket is fixedly connected to the bottom end of the plug surface, and the top end of the plug is slidably connected to the bottom end of the nozzle body.

[0011] Preferably, a limiting groove is provided at the bottom end of the hollow plate, and the inside of the limiting groove is slidably connected to the surface of the extension plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This injection molding machine nozzle, through the arrangement of a connecting rod, a hollow plate, an extension plate, and a connecting plate, connects the nozzle body to the injection molding machine via a second connecting pipe during use. After injection molding is completed, the connecting plate can be pulled, and the extension plate stretches the telescopic spring inside the hollow plate. With the cooperation of the connecting rod and the connecting block, the connecting plate is moved so that the plug on the connecting plate is below the nozzle body. Then the connecting plate is released, and the rebound force generated by the telescopic spring, with the cooperation of the hollow plate, pulls the extension plate upward, thereby allowing the plug on the connecting plate to insert into the nozzle body, preventing leakage of the injection molding material and achieving the effect of preventing injection molding material leakage.

[0014] 2. This injection molding machine nozzle, through the setting of a first adjusting plate, a limiting rod, and a second adjusting plate, allows the adjusting tube to be rotated during the injection molding process. With the cooperation of the limiting rod, the angle between the first adjusting plate and the second adjusting plate is adjusted. After the adjusting tube reaches the appropriate position, the friction between the first adjusting plate and the second adjusting plate is increased by the cooperation of the limiting spring, the limiting frame, the ball, and the fixing ring within the limiting ring, thereby fixing the angle between the first adjusting plate and the second adjusting plate. This adjusts the speed at which the injection molding material enters the nozzle body, thereby improving the injection molding quality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0016] Figure 2 This is a partial disassembled schematic diagram of the present invention;

[0017] Figure 3 This is a partial disassembled schematic diagram of the present invention;

[0018] Figure 4 This is a schematic diagram of the limiting component of this utility model.

[0019] In the diagram: 1. Nozzle body; 2. Connecting rod; 3. Connecting block; 4. Hollow plate; 5. Telescopic spring; 6. Extension plate; 7. Connecting plate; 8. Plug; 9. First connecting pipe; 10. Fixing ring; 11. First adjusting plate; 12. Limiting rod; 13. Second adjusting plate; 14. Adjusting pipe; 15. Limiting assembly; 1501. Limiting ring; 1502. Limiting spring; 1503. Limiting frame; 1504. Ball bearing; 16. Second connecting pipe. Detailed Implementation

[0020] 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.

[0021] Please see Figures 1-4 As shown, this utility model provides a technical solution:

[0022] A nozzle for an injection molding machine includes a nozzle body 1. Connecting rods 2 are fixedly connected to both sides of the nozzle body 1. Connecting blocks 3 are rotatably connected to the surface of the connecting rods 2. A hollow plate 4 is fixedly connected to the bottom end of the connecting block 3. A telescopic spring 5 is fixedly connected to the inner top wall of the hollow plate 4. An extension plate 6 is fixedly connected to the bottom end of the telescopic spring 5. A connecting plate 7 is fixedly connected to one side of the extension plate 6. A plug 8 is fixedly connected to the middle of the top of the connecting plate 7. A first connecting pipe 9 is connected through to the top of the nozzle body 1. A fixing ring 10 is fixedly connected to the top of the surface of the first connecting pipe 9. A first adjusting plate 11 is fixedly connected to the inner wall of the first connecting pipe 9. A circular hole is opened at the top of the first adjusting plate 11. A limit rod 12 is rotatably connected inside the circular hole. A second adjusting plate 13 is fixedly connected to the top of the limit rod 12. An adjusting pipe 14 is fixedly connected to one side of the second adjusting plate 13. A limit component 15 is fixedly connected to the surface of the adjusting pipe 14. A second connecting pipe 16 is connected through to the top of the adjusting pipe 14.

[0023] Specifically, after injection molding is completed, the connecting plate 7 can be pulled, and the extension plate 6 stretches the telescopic spring 5 inside the hollow plate 4. With the cooperation of the connecting rod 2 and the connecting block 3, the connecting plate 7 is moved so that the plug 8 on the connecting plate 7 is below the nozzle body 1. Then the connecting plate 7 is released, and the rebound force generated by the telescopic spring 5 pulls the extension plate 6 upward with the cooperation of the hollow plate 4, so that the plug 8 on the connecting plate 7 is inserted into the nozzle body 1, thus preventing the injection molding material from leaking and causing the injection molding material to condense on the surface of the nozzle body 1.

[0024] Understandably, the hollow plate 4 is used to restrict the movement direction of the extension plate 6, the telescopic spring 5 is used to adjust the position of the extension plate 6 on the hollow plate 4, and the cooperation between the plug body 8, the connecting rod 2 and the connecting block 3 is used to restrict the movement direction and position of the connecting plate 7.

[0025] In this embodiment, preferably, the limiting component 15 includes a limiting ring 1501, the inner wall of the limiting ring 1501 is fixedly connected to the surface of the adjusting tube 14, a plurality of limiting springs 1502 are fixedly connected inside the limiting ring 1501, the bottom end of the limiting springs 1502 is fixedly connected to a limiting frame 1503, and a ball bearing 1504 is rotatably connected inside the limiting frame 1503.

[0026] Specifically, when the regulating tube 14 rotates, the limiting spring 1502 and the limiting frame 1503 are used to make the ball 1504 roll on the fixed ring 10. After reaching the appropriate position, the limiting spring 1502 in the limiting ring 1501 makes the ball 1504 squeeze the fixed ring 10 through the limiting frame 1503, thereby increasing the friction between the first regulating plate 11 and the second regulating plate 13.

[0027] In this embodiment, preferably, the top end of the fixing ring 10 is provided with an annular groove, and a rubber pad is fixedly connected inside the annular groove.

[0028] Specifically, when the adjusting tube 14 rotates, the limiting spring 1502 and the limiting frame 1503 are used to make the ball 1504 roll on the fixed ring 10, so that the angle between the first adjusting plate 11 and the second adjusting plate 13 is fixed by the friction between the ball 1504 and the rubber pad without external force.

[0029] In this embodiment, preferably, a connecting groove is connected to the top end of the surface of the second connecting pipe 16, and a sealing ring is fixedly connected to the side of the second connecting pipe 16 near the connecting groove.

[0030] Specifically, during use, the nozzle body 1 is connected to the injection molding machine using the second connecting pipe 16, and the sealing ring is used to enhance the sealing between the second connecting pipe 16 and the injection molding machine;

[0031] In this embodiment, preferably, a sealing gasket is fixedly connected to the bottom end of the surface of the plug 8, and the top end of the plug 8 is slidably connected to the bottom end of the nozzle body 1.

[0032] Specifically, the plug 8 on the connecting plate 7 is inserted into the nozzle body 1 to prevent leakage of the injection molding material, and the sealing gasket is used to enhance the sealing between the nozzle body 1 and the plug 8.

[0033] In this embodiment, preferably, a limiting groove is provided at the bottom end of the hollow plate 4, and the inside of the limiting groove is slidably connected to the surface of the extension plate 6.

[0034] Specifically, the hollow plate 4 is used to restrict the movement direction of the extension plate 6, thereby adjusting the position of the connecting plate 7.

[0035] In this embodiment, a nozzle for an injection molding machine is used by connecting the nozzle body 1 to the injection molding machine via a second connecting pipe 16. During injection, the adjusting pipe 14 can be rotated according to the actual situation of the injection material in the mold. With the cooperation of the limiting rod 12, the angle between the first adjusting plate 11 and the second adjusting plate 13 is adjusted. After the adjusting pipe 14 reaches the appropriate position, the friction between the first adjusting plate 11 and the second adjusting plate 13 is increased by the cooperation of the limiting spring 1502, the limiting frame 1503, the ball bearing 1504, and the fixing ring 10 within the limiting ring 1501. The angle between the connecting plates 13 is fixed to adjust the speed at which the injection material enters the nozzle body 1. After injection molding is completed, the connecting plate 7 can be pulled, and the extension plate 6 stretches the telescopic spring 5 inside the hollow plate 4. With the cooperation of the connecting rod 2 and the connecting block 3, the connecting plate 7 is moved so that the plug 8 on the connecting plate 7 is below the nozzle body 1. Then the connecting plate 7 is released, and the rebound force generated by the telescopic spring 5 pulls the extension plate 6 upward with the cooperation of the hollow plate 4, so that the plug 8 on the connecting plate 7 is inserted into the nozzle body 1, preventing the injection material from leaking and causing the injection material to condense on the surface of the nozzle body 1.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A nozzle for an injection molding machine, comprising a nozzle body (1), characterized in that: Connecting rods (2) are fixedly connected to both sides of the nozzle body (1). Connecting blocks (3) are rotatably connected to the surface of the connecting rods (2). A hollow plate (4) is fixedly connected to the bottom end of the connecting block (3). A telescopic spring (5) is fixedly connected to the inner top wall of the hollow plate (4). An extension plate (6) is fixedly connected to the bottom end of the telescopic spring (5). A connecting plate (7) is fixedly connected to one side of the extension plate (6). A plug (8) is fixedly connected to the middle of the top of the connecting plate (7). A first connecting pipe (9) is connected through the top of the nozzle body (1). A fixing ring (10) is fixedly connected to the top of the surface of the connector (9). A first adjusting plate (11) is fixedly connected to the inner wall of the first connecting pipe (9). A circular hole is opened at the top of the first adjusting plate (11). A limiting rod (12) is rotatably connected inside the circular hole. A second adjusting plate (13) is fixedly connected to the top of the limiting rod (12). An adjusting pipe (14) is fixedly connected to one side of the second adjusting plate (13). A limiting component (15) is fixedly connected to the surface of the adjusting pipe (14). A second connecting pipe (16) is connected through the top of the adjusting pipe (14).

2. The nozzle for an injection molding machine according to claim 1, characterized in that: The limiting component (15) includes a limiting ring (1501), the inner wall of which is fixedly connected to the surface of the adjusting tube (14). A plurality of limiting springs (1502) are fixedly connected inside the limiting ring (1501). A limiting frame (1503) is fixedly connected to the bottom end of the limiting springs (1502). A ball bearing (1504) is rotatably connected inside the limiting frame (1503).

3. The nozzle for an injection molding machine according to claim 1, characterized in that: The top end of the fixing ring (10) is provided with an annular groove, and a rubber pad is fixedly connected inside the annular groove.

4. A nozzle for an injection molding machine according to claim 1, characterized in that: A connecting groove is connected to the top of the surface of the second connecting pipe (16), and a sealing ring is fixedly connected to the side of the second connecting pipe (16) near the connecting groove.

5. A nozzle for an injection molding machine according to claim 1, characterized in that: A sealing gasket is fixedly connected to the bottom end of the surface of the plug (8), and the top end of the plug (8) is slidably connected to the bottom end of the nozzle body (1).

6. A nozzle for an injection molding machine according to claim 1, characterized in that: The bottom end of the hollow plate (4) is provided with a limiting groove, and the inside of the limiting groove is slidably connected to the surface of the extension plate (6).

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