Multifunctional hot nozzle core

Abstract

The utility model discloses a multifunctional hot nozzle core, which relates to the technical field of hot nozzle cores and comprises a mounting pipe fitting, mounting fasteners are slidably connected to two sides in the mounting pipe fitting, a second injection molding core is fixedly connected to the outer wall of the top end of a first injection molding core, and an injection molding tip is fixedly connected to the outer wall of the top end of the second injection molding core. The injection molding tip is located in the center of the top of the first injection molding core, the top of the outer wall of the second injection molding core is rotationally connected with an adjusting knob, and a plurality of limiting grooves are formed in the top of the outer wall of the second injection molding core. Fine adjustment and accurate control over the plastic flow in the device are achieved so as to meet different production requirements, and in addition, under the joint cooperation of the multiple adjusting assemblies, the defects that due to the fact that the plastic flow cannot be adjusted, plastic flows unevenly in the injection molding process, and the quality of finished products is affected can be effectively overcome.

Description

Technical Field

[0001] This utility model relates to the field of hot nozzle core technology, specifically a multifunctional hot nozzle core. Background Technology

[0002] Hot runner nozzles are an indispensable component of injection molds. They are responsible for delivering molten plastic into the mold cavity during the injection process. Hot runner nozzles are typically made of high-quality steel, ensuring excellent wear resistance and corrosion resistance even under high temperature and high pressure conditions, guaranteeing stable operation over long periods. Their design fully considers the flowability of plastics and the complexity of the mold. Especially when dealing with plastics with poor flowability or complex molds, they can effectively avoid problems such as short shots or scorching. Therefore, pointed hot runner nozzles are a high-performance and versatile hot runner option, playing an important role in improving injection molding production efficiency and product quality.

[0003] Currently, existing hot runner nozzle cores are mainly manufactured using one-piece casting. This involves placing a specific material (such as an alloy) into a mold and forming the nozzle core prototype through heating or pressure molding. While existing hot runner nozzle core manufacturing processes ensure good structural stability and durability, their one-piece construction limits the adjustment of the discharge orifice diameter. This means that existing equipment may not be flexible enough to adapt to different production needs, especially when different flow rates of plastic are required. A fixed discharge orifice diameter can lead to uneven plastic flow during injection molding, affecting product quality and causing defects such as short shots, bubbles, or burning. Furthermore, the inability to adjust the orifice diameter may necessitate replacing hot runner nozzle cores of different specifications when producing diverse products, increasing production costs and changeover time, and reducing production efficiency. Therefore, we provide a multi-functional hot runner nozzle core. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a multifunctional hot nozzle core.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multifunctional hot runner nozzle core, comprising an installation fitting, wherein installation fasteners are slidably connected to both sides of the installation fitting, and a first injection core is engaged with the outer wall of the top of the installation fitting via the installation fasteners; a second injection core is fixedly connected to the outer wall of the top of the first injection core, and an injection tip is fixedly connected to the outer wall of the top of the second injection core, the injection tip being located at the top center of the first injection core; an adjustment knob is rotatably connected to the top of the outer wall of the second injection core, and multiple limiting grooves are respectively opened on the top of the outer wall of the second injection core; an adjustment support is fixedly connected to the center of the interior of the second injection core, and an adjustment disc is rotatably connected to the outer wall of the top of the adjustment support; multiple connectors are fixedly connected to the edge of the top surface of the adjustment disc, and the connectors penetrate one end of the limiting groove and are fixedly connected to the top of the inner wall of the adjustment knob.

[0006] As described above, multiple slide rails are fixedly connected to both sides of the inner side of the mounting fitting, and the slide rails are located on both sides of the inner side of the mounting fastener. One side of the outer wall of the slide rail is connected through to the inner side of the mounting fastener, and the inner side of the mounting fastener is slidably connected to the outer wall of the slide rail.

[0007] As described above, a positioning spring is fixedly connected to the center of one side of the mounting fastener, and the positioning spring is located on both sides inside the mounting pipe.

[0008] As described above, the top of the outer wall of the mounting fastener is located on one side of the bottom of the first injection core, and the top of the outer wall of the mounting fastener is engaged with the bottom of the inner end of the mounting fastener through a positioning spring and a slide rail.

[0009] As described above, the center of the top surface of the adjusting support is provided with a guide groove, and multiple mutually cooperating adjusting components are simultaneously slidably connected to the center of the top surface of the adjusting support through the guide groove. The bottom side of the adjusting component is connected through to the top side of the guide groove, and the bottom of the outer wall of the adjusting component is slidably connected to the inner side of the guide groove.

[0010] As described above, the top outer wall of the adjustment disc is provided with multiple drive grooves, and multiple sliding bolts are slidably connected to the inner edge of the adjustment disc through the drive grooves. The bottom end of the outer wall of the sliding bolt is connected through one end of the drive groove, and the inner end of the drive groove is slidably connected to both sides of the outer wall of the sliding bolt.

[0011] As described above, the sliding bolt corresponds to the adjusting component, and the bottom end of the outer wall of the sliding bolt penetrates one end of the drive groove and is fixedly connected to one side of the top surface of the adjusting component.

[0012] Compared with existing technologies, this multifunctional hot nozzle core has the following advantages:

[0013] I. This utility model achieves a quick and stable connection between the installation fitting and the first injection molded core by rotating the installation fitting so that the mounting fasteners on both sides of the installation fitting are aligned with the grooves on both sides of the first injection molded core. The installation fitting is then pushed towards the first injection molded core. When the inclined surface on the top side of the mounting fastener contacts the bottom end of the inner wall of the first injection molded core, the mounting fastener, with the push of the operator, moves along the outer wall of the slide rail towards the center of the installation fitting. This allows the installation fitting to engage with the first injection molded core through the mounting fasteners and become fixed to the bottom outer wall of the first injection molded core. This not only improves assembly efficiency but also ensures the reliability and stability of the connection. The operator only needs to simply push the installation fitting to achieve a secure connection with the first injection molded core.

[0014] II. When it is necessary to change the flow rate of plastic in this device according to different working conditions, this utility model only requires rotating the adjustment knob. As the knob rotates, it drives the adjustment disc to rotate at the top of the second injection core via the connecting piece and the limiting groove. As the adjustment disc rotates through the connecting piece at the top of the second injection core, the adjustment disc, under the combined action of the drive slide, guide slide, and sliding bolt, causes multiple adjustment components at the center of the top surface of the adjustment support to close and open together in the direction of the adjustment disc's rotation, thereby controlling the flow rate of plastic inside the device. Thus, by adjusting... The coordinated operation of the disc plate, drive slide, guide slide, and adjustment components enables fine-tuning and precise control of the plastic flow rate within the device to adapt to different production needs. Furthermore, this device not only improves the flexibility of the production process but also greatly simplifies operation. Operators only need to rotate the adjustment knob to achieve precise control of the plastic flow rate without needing to delve into the equipment or perform complex settings. In addition, the combined effect of multiple adjustment components effectively avoids defects such as uneven plastic flow during injection molding, which can affect the quality of finished products, caused by the inability to adjust the plastic flow rate.

[0015] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a partially exploded three-dimensional structural diagram of the installation pipe fitting and the first injection core of this utility model;

[0018] Figure 3 This is a partially exploded three-dimensional structural diagram of the second injection core and adjustment knob of this utility model;

[0019] Figure 4 This is a partially exploded three-dimensional structural diagram of the adjusting disc and adjusting support of this utility model.

[0020] In the diagram: 1. Installation fitting; 2. Installation fastener; 201. First injection core; 202. Slide rail; 203. Positioning spring; 3. Second injection core; 301. Injection tip; 302. Adjustment knob; 303. Limit groove; 304. Adjustment support; 305. Adjustment disc; 306. Connector; 307. Guide slide; 308. Adjustment assembly; 309. Drive slide; 3010. Sliding bolt. Detailed Implementation

[0021] 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.

[0022] like Figure 1-4 As shown, this utility model provides a technical solution: a multifunctional hot runner nozzle core, including an installation fitting 1, with installation fasteners 2 slidably connected to both sides inside the installation fitting 1, and a first injection core 201 is snapped onto the top outer wall of the installation fitting 1 through the installation fasteners 2. A second injection core 3 is fixedly connected to the top outer wall of the first injection core 201, and an injection tip 301 is fixedly connected to the top outer wall of the second injection core 3. The injection tip 301 is located at the top center of the first injection core 201. An adjustment knob 302 is rotatably connected to the top of the outer wall of the second injection core 3, and multiple limiting grooves 303 are respectively opened on the top of the outer wall of the second injection core 3. An adjustment support 304 is fixedly connected to the center inside the second injection core 3, and an adjustment disc 305 is rotatably connected to the top outer wall of the adjustment support 304. Multiple connectors 306 are fixedly connected to the top edge of the top surface of the adjustment disc 305, and the connectors 306 penetrate one end inside the limiting groove 303 and are fixedly connected to the top of the inner wall of the adjustment knob 302.

[0023] By rotating the mounting fitting 1, the mounting fasteners 2 on both sides inside the mounting fitting 1 are aligned with the grooves on both sides inside the first injection core 201. The mounting fitting 1 is then pushed towards the first injection core 201. When the inclined surface on one side of the top of the mounting fastener 2 contacts the bottom of the inner wall of the first injection core 201, multiple slide rails 202 are provided inside the mounting fitting 1, extending through both sides of the mounting fastener 2 to limit its movement. This ensures that the mounting fastener 2 can only move along the outer wall of the slide rail 202. As the operator pushes the mounting fitting 1 towards the first injection core 201, the mounting fastener 2, under the operator's pushing force, moves along the outer wall of the slide rail 202 towards the center inside the mounting fitting 1, compressing the positioning spring 203. After the outer wall of the top of component 1 is attached to the outer wall of the bottom of the first injection core 201, the mounting fastener 2 loses its support from the bottom of the inner wall of the first injection core 201. Under the action of the positioning spring 203, the mounting fastener 2 moves away from the positioning spring 203 along the outer wall of the slide rail 202. Under the combined action of the positioning spring 203 and the slide rail 202, the mounting component 1 can be engaged with the first injection core 201 through the mounting fastener 2 and fixed to the outer wall of the bottom of the first injection core 201. When it is necessary to change the flow rate of plastic in this device according to different working conditions, it is only necessary to rotate the adjusting knob 302. When the adjusting knob 302 rotates, it drives the adjusting disc 305 to rotate at the top of the second injection core 3 through the connecting piece 306 and the limiting groove 303. By placing the adjusting disc 305 and the adjusting support 304 together inside the second injection core 3, the adjusting disc 305 is limited so that it can only rotate within the center of the adjusting support 304. Since a guide groove 307 and a drive groove 309 are respectively formed at the center of the adjusting support 304 and on the outer wall of the top of the adjusting disc 305, and a sliding bolt 3010 is placed at one end of the drive groove 309, fixing the bottom outer wall of the sliding bolt 3010 to one side of the top surface of the adjusting assembly 308, as the adjusting knob 302 drives the adjusting disc 305 to rotate inside the top of the second injection core 3 via the connector 306, the adjusting disc 305 rotates within the drive groove 309, the guide groove 307, and the sliding bolt 3010. Under the action of the adjustment mechanism, multiple adjustment components 308 at the center of the top surface of the adjustment support 304 can close and open together following the rotation direction of the adjustment disc 305, thereby controlling the plastic flow rate inside the device. Thus, through the combined action of the adjustment disc 305, drive slide 309, guide slide 307, and adjustment components 308, fine-tuning and precise control of the plastic flow rate inside the device can be achieved to adapt to different production needs. Furthermore, this device not only improves the flexibility of the production process but also greatly simplifies the operation. Operators only need to rotate the adjustment knob 302 to achieve precise control of the plastic flow rate without needing to delve into the equipment or perform complex settings. In addition, with the combined action of multiple adjustment components 308...It can also effectively avoid defects such as uneven plastic flow during injection molding caused by the inability to adjust the plastic flow rate, which affects the quality of the finished product.

[0024] like Figure 1-2 As shown, multiple slide rails 202 are fixedly connected to both sides of the inside of the mounting fitting 1, and the slide rails 202 are located on both sides of the inside of the mounting fastener 2. One side of the outer wall of the slide rail 202 is connected through to one side of the inside of the mounting fastener 2, and the one side of the inside of the mounting fastener 2 is slidably connected to one side of the outer wall of the slide rail 202. A positioning spring 203 is fixedly connected to the center of one side of the mounting fastener 2, and the positioning spring 203 is located on both sides of the inside of the mounting fitting 1. The top of the outer wall of the mounting fastener 2 is located on one side of the bottom of the first injection core 201, and the top of the outer wall of the mounting fastener 2 is engaged with the bottom of the inside of the mounting fastener 2 through the positioning spring 203 and the slide rail 202.

[0025] By rotating the mounting fitting 1, the mounting fasteners 2 on both sides inside the mounting fitting 1 are aligned with the grooves on both sides inside the first injection core 201. The mounting fitting 1 is then pushed towards the first injection core 201. When the inclined surface on one side of the top of the mounting fastener 2 contacts the bottom of the inner wall of the first injection core 201, multiple slide rails 202 are provided inside the mounting fitting 1, extending through both sides of the mounting fastener 2 to limit its movement. This ensures that the mounting fastener 2 can only move along the outer wall of the slide rail 202. As the operator pushes the mounting fitting 1 towards the first injection core 201, the mounting fastener 2, under the operator's pushing force, moves along the outer wall of the slide rail 202 towards the center inside the mounting fitting 1, compressing the positioning spring 203. When the mounting fitting 1... After the top outer wall is attached to the bottom outer wall of the first injection core 201, the mounting fastener 2 loses its support from the bottom of the inner wall of the first injection core 201. Under the action of the positioning spring 203, the mounting fastener 2 moves away from the positioning spring 203 along the outer wall of the slide rail 202. Under the combined action of the positioning spring 203 and the slide rail 202, the mounting tube 1 can be engaged with the first injection core 201 through the mounting fastener 2 and fixed to the bottom outer wall of the first injection core 201. This achieves a quick and stable connection between the mounting tube 1 and the first injection core 201, which not only improves assembly efficiency but also ensures the reliability and stability of the connection. The operator only needs to push the mounting tube 1 to achieve a firm connection with the first injection core 201.

[0026] like Figure 1 , Figure 3 and Figure 4As shown, a guide groove 307 is provided at the center of the top surface of the adjusting support 304, and multiple cooperating adjusting components 308 are slidably connected to the center of the top surface of the adjusting support 304 through the guide groove 307. One side of the bottom of the adjusting component 308 is connected through to one side of the top surface of the guide groove 307, and the bottom of the outer wall of the adjusting component 308 is slidably connected to one side of the inner surface of the guide groove 307. Multiple driving grooves 309 are provided on the outer wall of the top of the adjusting disc 305, and multiple sliding bolts 3010 are slidably connected to the inner edge of the adjusting disc 305 through the driving grooves 309. The bottom end of the outer wall of the sliding bolt 3010 is connected through to one end of the inner surface of the driving groove 309, and the inner end of the driving groove 309 is slidably connected to both sides of the outer wall of the sliding bolt 3010. The sliding bolts 3010 correspond to the adjusting components 308, and the bottom end of the outer wall of the sliding bolt 3010 is connected through one end of the inner surface of the driving groove 309 and fixedly connected to one side of the top surface of the adjusting component 308.

[0027] When the flow rate of plastic in this device needs to be changed according to different working conditions, simply rotate the adjustment knob 302. As the knob rotates, it drives the adjustment disc 305 to rotate at the top of the second injection molding core 3 via the connector 306 and the limiting groove 303. By placing the adjustment disc 305 and the adjustment support 304 together inside the second injection molding core 3, the adjustment disc 305 is limited, allowing it to rotate only within the center of the adjustment support 304. Since guide grooves 307 and drive grooves 309 are respectively provided at the center of the adjustment support 304 and on the outer wall of the top of the adjustment disc 305, and a sliding bolt 3010 is placed at one end of the drive groove 309, fixing the bottom outer wall of the sliding bolt 3010 to one side of the top surface of the adjustment assembly 308, as the adjustment knob 302 drives the adjustment disc 305 to rotate at the top of the second injection molding core 3 via the connector 306, the adjustment disc 305 rotates within the drive groove 307. Under the combined action of the adjustment disc 305, the guide slide 307, and the sliding bolt 3010, the multiple adjustment components 308 at the center of the top surface of the adjustment support 304 can close and open together following the rotation direction of the adjustment disc 305, thereby controlling the plastic flow rate inside the device. Thus, through the joint cooperation of the adjustment disc 305, the drive slide 309, the guide slide 307, and the adjustment components 308, fine-tuning and precise control of the plastic flow rate inside the device can be achieved to adapt to different production needs. At the same time, this device not only improves the flexibility of the production process but also greatly simplifies the operation process. Operators only need to rotate the adjustment knob 302 to achieve precise control of the plastic flow rate without having to go deep into the equipment or make complex settings. In addition, with the joint cooperation of multiple adjustment components 308, this device can also effectively avoid defects such as uneven plastic flow during injection molding caused by the inability to adjust the plastic flow rate, which affects the quality of the finished product.

[0028] Working principle: By rotating the installation fitting 1, the mounting fasteners 2 on both sides inside the installation fitting 1 are aligned with the grooves on both sides inside the first injection core 201. The installation fitting 1 is then pushed towards the first injection core 201. When the inclined surface on one side of the top of the mounting fastener 2 contacts the bottom of the inner wall of the first injection core 201, multiple slide rails 202 are provided inside the installation fitting 1, extending through both sides of the mounting fastener 2 to limit its movement. This ensures that the mounting fastener 2 can only move along the outer wall of the slide rail 202. As the operator pushes the installation fitting 1 towards the first injection core 201, the mounting fastener 2, with the support of the operator's pushing force, moves along the slide rail 202. 02 The outer wall moves towards the center of the mounting fitting 1 and compresses the positioning spring 203. When the top outer wall of the mounting fitting 1 is in contact with the bottom outer wall of the first injection core 201, the mounting fastener 2 loses its support from the bottom of the inner wall of the first injection core 201. Under the action of the positioning spring 203, the mounting fastener 2 moves away from the positioning spring 203 along the outer wall of the slide rail 202. Under the combined action of the positioning spring 203 and the slide rail 202, the mounting fitting 1 can be engaged with the first injection core 201 through the mounting fastener 2 and fixed to the bottom outer wall of the first injection core 201. When it is necessary to change the flow rate of plastic in this device according to different working conditions, it is only necessary to rotate... Turning the adjustment knob 302 causes the adjustment disc 305 to rotate at its top inside the second injection core 3 via the connector 306 and the limiting groove 303. By placing the adjustment disc 305 and the adjustment support 304 together inside the second injection core 3, the adjustment disc 305 is limited, allowing it to rotate only within the center of the adjustment support 304. Since a guide groove 307 and a drive groove 309 are respectively provided at the center of the adjustment support 304 and on the outer wall of the top of the adjustment disc 305, and a sliding bolt 3010 is placed at one end of the drive groove 309, the bottom outer wall of the sliding bolt 3010 is fixed to the center. On one side of the top surface of the adjusting component 308, as the adjusting knob 302 drives the adjusting disc 305 to rotate inside the top of the second injection core 3 via the connector 306, the adjusting disc 305, under the combined action of the drive slide 309, the guide slide 307, and the sliding bolt 3010, causes multiple adjusting components 308 at the center of the top surface of the adjusting support 304 to close and open together following the rotation direction of the adjusting disc 305, thereby controlling the plastic flow rate inside the device. Thus, through the combined action of the adjusting disc 305, the drive slide 309, the guide slide 307, and the adjusting component 308, fine-tuning and precise control of the plastic flow rate inside the device can be achieved.

[0029] 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 multifunctional hot runner nozzle core, comprising an installation fitting (1), characterized in that: The mounting fitting (1) has mounting fasteners (2) slidably connected to both sides inside. A first injection core (201) is engaged with the outer wall of the top of the mounting fitting (1) via the mounting fasteners (2). A second injection core (3) is fixedly connected to the outer wall of the top of the first injection core (201), and an injection tip (301) is fixedly connected to the outer wall of the top of the second injection core (3). The injection tip (301) is located at the center of the top of the first injection core (201). An adjustment mechanism is rotatably connected to the top of the outer wall of the second injection core (3). The knob (302) and the top of the outer wall of the second injection core (3) are respectively provided with multiple limiting grooves (303). The center of the second injection core (3) is fixedly connected to an adjustment support (304), and the top outer wall of the adjustment support (304) is rotatably connected to an adjustment disc (305). Multiple connectors (306) are fixedly connected to the edge of the top surface of the adjustment disc (305), and the connectors (306) penetrate one end of the limiting groove (303) and are fixedly connected to the top of the inner wall of the adjustment knob (302).

2. The multifunctional hot nozzle core according to claim 1, characterized in that: Multiple slide rails (202) are fixedly connected to both sides of the inner side of the mounting fitting (1), and the slide rails (202) are located on both sides of the inner side of the mounting fastener (2). One side of the outer wall of the slide rail (202) is connected through to one side of the inner side of the mounting fastener (2), and one side of the inner side of the mounting fastener (2) is slidably connected to one side of the outer wall of the slide rail (202).

3. The multifunctional hot nozzle core according to claim 2, characterized in that: A positioning spring (203) is fixedly connected to the center of one side of the mounting fastener (2), and the positioning spring (203) is located on both sides inside the mounting pipe (1).

4. A multifunctional hot nozzle core according to claim 3, characterized in that: The top of the outer wall of the mounting fastener (2) is located on one side of the bottom of the first injection core (201), and the top of the outer wall of the mounting fastener (2) is engaged with the bottom of the inner part of the mounting fastener (2) by a positioning spring (203) and a slide rail (202).

5. A multifunctional hot nozzle core according to claim 1, characterized in that: The center of the top surface of the adjusting support (304) is provided with a guide groove (307), and the center of the top surface of the adjusting support (304) is simultaneously slidably connected to a plurality of mutually cooperating adjusting components (308) through the guide groove (307). The bottom side of the adjusting component (308) is connected through to the top side of the guide groove (307), and the bottom of the outer wall of the adjusting component (308) is slidably connected to the inner side of the guide groove (307).

6. A multifunctional hot nozzle core according to claim 5, characterized in that: The top outer wall of the adjustment disc (305) is provided with multiple drive grooves (309), and multiple sliding bolts (3010) are slidably connected to the inner edge of the adjustment disc (305) through the drive grooves (309). The bottom end of the outer wall of the sliding bolt (3010) is connected through one end of the drive groove (309), and the inner end of the drive groove (309) is slidably connected to both sides of the outer wall of the sliding bolt (3010).

7. A multifunctional hot nozzle core according to claim 6, characterized in that: The sliding bolt (3010) corresponds to the adjusting component (308), and the bottom end of the outer wall of the sliding bolt (3010) penetrates one end of the drive groove (309) and is fixedly connected to one side of the top surface of the adjusting component (308).

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