Side pouring hot runner mold

Abstract

The utility model relates to the technical field of hot runner molds, and discloses a side pouring hot runner mold which comprises a mold body and a nozzle body, the nozzle body is vertically arranged in the center of the mold body, a feeding channel is formed in the middle of the interior of the nozzle body, a plurality of discharging ports are formed in the bottom end of the nozzle body along the circumferential surface of the nozzle body, and the discharging ports are communicated with the feeding channel; the nozzle head is arranged on the side portion of the nozzle body, an inlet of the nozzle head is communicated with the discharging port, a discharging channel is formed in the middle of the interior of the nozzle head, and an outlet of the discharging channel is communicated with the feeding port of the cavity; the heating mechanism is arranged at the side part of the nozzle body and is used for heating the thermoplastic in the nozzle body; the connecting mechanism comprises a connecting block and a nut, the connecting block is used for connecting the nozzle body and the nozzle head, and the nut is used for connecting the nozzle head and the cavity. According to the utility model, the feeding efficiency and the injection molding quality of the mold are improved, the deformation and stress concentration of a product are reduced through the side pouring design, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hot runner moulds, in particular to a side-injection hot runner mould. Background Art

[0002] With the development of the plastics industry, the requirements for plastic products are becoming increasingly stringent, especially in terms of precision and production efficiency. Traditional runner molds, due to issues such as material waste and long production cycles, are gradually failing to meet the demands of modern, efficient, and energy-saving production. Therefore, there is an urgent need for a side-injection hot runner mold that, through optimized mold structure design, achieves efficient material utilization and rapid production, offering significant economic and environmental benefits. Utility Model Content

[0003] The purpose of the utility model is to provide a side-injection hot runner mold to solve the problems of traditional runner molds such as material waste and long production cycle, which gradually cannot meet the modern high-efficiency and energy-saving production needs.

[0004] The utility model provides a side-injection hot runner mold, comprising:

[0005] mold body;

[0006] A nozzle body, the nozzle body being vertically arranged at the center of the mold body, a feed channel being opened in the middle of the nozzle body, and a plurality of discharge ports being opened along the circumference of the nozzle body at the bottom end of the nozzle body, the discharge ports being connected to the feed channel;

[0007] A nozzle head is provided on the side of the nozzle body, an inlet of the nozzle head is connected to the discharge port, a discharge channel is provided in the middle of the nozzle head, and an outlet of the discharge channel is connected to the inlet of the cavity;

[0008] A heating mechanism is provided on the side of the nozzle body and is used to heat the thermoplastic in the nozzle body;

[0009] The connecting mechanism includes a connecting block and a nut. The connecting block is used to connect the nozzle body and the nozzle head. The nut is used to connect the nozzle head and the cavity. A connecting port is provided on the surface of the discharge port. A connecting groove is provided in the connecting port. The connecting block is provided on the side of the nozzle head. The connecting block is connected to the nozzle body through the connecting groove.

[0010] Preferably, the discharge channel is communicated with the feed channel.

[0011] Preferably, a heat insulating gasket is provided between the outlet of the nozzle head and the cavity.

[0012] Preferably, a positioning pin is provided at a position of the cavity relative to the contact portion of the nozzle head.

[0013] Preferably, the heating mechanism includes an annular groove and a spiral heating rod, the annular groove is arranged on the circumferential surface of the nozzle body, and the spiral heating rod is arranged in the annular groove.

[0014] Preferably, the heating mechanism further comprises a temperature sensor, which is arranged at the outlet of the nozzle body and is used to detect the temperature of the thermoplastic in the feed channel.

[0015] Preferably, the nut is arranged at the outlet of the nozzle head, a thread is provided at the connection between the cavity and the nozzle head, and the nut is connected to the side of the cavity through the thread.

[0016] Preferably, the connecting mechanism further comprises a sealing ring, and when the connecting block is disposed in the connecting groove, the sealing ring contacts the side of the nozzle body.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. The side-injection hot runner mold provided by this utility model has significant technical advantages and economic value. By optimizing the mold structure and introducing advanced hot runner technology, it achieves efficient material utilization and rapid production, meeting the modern plastics industry's demand for high-efficiency, energy-saving, and precise production.

[0019] 2. This utility model improves mold feeding efficiency and injection quality, reducing product deformation and stress concentration through a side-feed design. The unique design of the nozzle body and nozzle tip enables precise control of heat flow, ensuring the molding quality of the plastic part. The optimized configuration of the heating mechanism improves thermal efficiency, reduces energy consumption, and ensures uniform heating of the plastic part. The connection mechanism design enhances mold stability and durability, reducing failures caused by connection problems. The design of the connection port and connection groove on the discharge port simplifies mold assembly and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0021] Figure 1 This is a structural diagram of a side-injection hot runner mold of the utility model;

[0022] Figure 2 This is a structural diagram of the nozzle head of the utility model;

[0023] Figure 3 It is a structural diagram of the connecting port of the utility model.

[0024] Among them, 1. mold body; 2. nozzle body; 21. feed channel; 22. discharge port; 23. annular groove; 24. spiral heating rod; 25. temperature sensor; 3. nozzle head; 31. discharge channel; 32. sealing ring; 33. thermal insulation gasket; 4. cavity; 41. positioning pin; 5. connecting block; 6. nut; 7. connecting port; 71. connecting groove. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0026] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0027] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this application, unless otherwise specified, "plurality" means two or more.

[0028] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0029] like Figure 1-Figure 3 As shown, the utility model provides a side-injection hot runner mold, comprising:

[0030] Mold body 1;

[0031] The nozzle body 2 is vertically arranged in the center of the mold body 1. A feed channel 21 is opened in the middle of the nozzle body 2. A plurality of discharge ports 22 are opened along the circumferential surface of the nozzle body 2 at the bottom end of the nozzle body 2. The discharge ports 22 are connected to the feed channel 21.

[0032] The nozzle head 3 is arranged on the side of the nozzle body 2. The inlet of the nozzle head 3 is connected to the discharge port 22. A discharge channel 31 is opened in the middle of the nozzle head 3. The outlet of the discharge channel 31 is connected to the inlet of the cavity 4.

[0033] The heating mechanism is arranged on the side of the nozzle body 2 and is used to heat the thermoplastic in the nozzle body 2.

[0034] The connecting mechanism includes a connecting block 5 and a nut 6. The connecting block 5 is used to connect the nozzle body 2 and the nozzle head 3. The nut 6 is used to connect the nozzle head 3 and the cavity 4. A connecting port 7 is provided on the surface of the discharge port 22. A connecting groove 71 is provided in the connecting port 7. The connecting block 5 is provided on the side of the nozzle head 3. The connecting block 5 is connected to the nozzle body 2 through the connecting groove 71.

[0035] In some embodiments of the present application, the discharge channel 31 is connected to the feed channel 21 .

[0036] In some embodiments of the present application, a heat insulating gasket 33 is provided between the outlet of the nozzle head 3 and the cavity 4 .

[0037] A thermal insulation gasket 33 is installed at the nozzle tip 3's outlet. This ensures that excessive pressure when the nozzle contacts the cavity 4 prevents damage to the cavity 4's surface. It also absorbs vibrations, reducing noise and extending the life of the nozzle tip 3. Its primary function is to block heat transfer, preventing the nozzle tip 3 from transferring heat to the cavity 4 during high-temperature operation. This protects the cavity 4 material from thermal damage, ensuring overall system stability and extending the cavity 4's service life. The thermal insulation gasket 33 also reduces the impact of heat on the performance of the sealing ring 32.

[0038] In some embodiments of the present application, a positioning pin 41 is provided at a position of the cavity 4 relative to the contact portion of the nozzle head 3 .

[0039] The cavity 4 is provided with a locating pin 41 at a position relative to the contact portion of the nozzle head 3. The function of the locating pin 41 is to ensure that the nozzle head 3 can be accurately aligned with the cavity 4 during installation, thereby ensuring the matching accuracy between the nozzle head 3 and the cavity 4. This design can effectively prevent assembly difficulties or assembly errors caused by position deviation during the assembly process, thereby improving assembly efficiency and product quality. The locating pin 41 usually has a certain length and diameter to provide sufficient positioning area between the nozzle head 3 and the cavity 4 to ensure its stability and durability. In actual applications, the size and shape of the locating pin 41 should be designed according to the specific structure and size of the nozzle head 3 and the cavity 4 to achieve the best positioning effect.

[0040] In some embodiments of the present application, the heating mechanism includes an annular groove 23 and a spiral heating rod 24 . The annular groove 23 is provided on the circumferential surface of the nozzle body 2 , and the spiral heating rod 24 is provided in the annular groove 23 .

[0041] The heating mechanism includes an annular groove 23 and a spiral heating rod 24. The annular groove 23 is arranged on the circumferential surface of the nozzle body 2, and the spiral heating rod 24 is arranged in the annular groove 23. The shape of the annular groove 23 matches the outer circumferential surface of the nozzle body 2, forming a heating channel surrounding the nozzle body 2. The spiral heating rod 24 is embedded in the annular groove 23 in a spiral shape. Its design allows uniform heat to be generated when current passes through, thereby heating the entire nozzle body 2. This structure ensures the uniformity of heat distribution, helps to improve heating efficiency, and can prevent local overheating or cold spots in the material during the heating process. In addition, the shape and layout of the spiral heating rod 24 can also be adjusted as needed to accommodate nozzle bodies 2 of different sizes and shapes, thereby realizing customized heating solutions.

[0042] In some embodiments of the present application, the heating mechanism further includes a temperature sensor 25 . The temperature sensor 25 is disposed at the outlet of the nozzle body 2 . The temperature sensor 25 is used to detect the temperature of the thermoplastic in the feed channel 21 .

[0043] The heating mechanism also includes a temperature sensor 25, located at the nozzle body 2's outlet, for real-time monitoring and control of the molten material's temperature. By accurately detecting the temperature of the thermoplastic material at the nozzle body 2's outlet, the temperature sensor 25 ensures that the material remains within the ideal processing temperature range during extrusion. This helps improve the quality of the extruded product by preventing overheating or insufficient melting of the material, thereby avoiding potential defects such as bubbles, deformation, or insufficient strength. Feedback from the temperature sensor 25 can be used by the heating mechanism's control system to adjust the power output of the heating element to maintain a stable temperature, ensuring continuity throughout the production process and consistent product quality.

[0044] In some embodiments of the present application, the nut 6 is provided at the outlet of the nozzle head 3 , a thread is provided at the connection between the cavity 4 and the nozzle head 3 , and the nut 6 is connected to the side of the cavity 4 through the thread.

[0045] Nut 6 is cleverly positioned at the outlet of nozzle tip 3. To achieve this, the connection between the nozzle tip 3's outlet and cavity 4 is threaded. This threaded design allows nut 6 to be securely connected to the side of cavity 4 simply by tightening. This secures nut 6 to cavity 4 while providing a convenient disassembly and assembly method for easy maintenance and replacement of nozzle tip 3. This entire structure not only ensures a stable connection between nozzle tip 3 and cavity 4 but also facilitates routine maintenance.

[0046] In some embodiments of the present application, the connection mechanism further includes a sealing ring 32 . When the connection block 5 is disposed in the connection groove 71 , the sealing ring 32 contacts the side of the nozzle body 2 .

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. A side-injection hot runner mold, characterized in that: include: mold body; A nozzle body, the nozzle body being vertically arranged at the center of the mold body, a feed channel being opened in the middle of the nozzle body, and a plurality of discharge ports being opened along the circumference of the nozzle body at the bottom end of the nozzle body, the discharge ports being connected to the feed channel; A nozzle head is provided on the side of the nozzle body, an inlet of the nozzle head is connected to the discharge port, a discharge channel is provided in the middle of the nozzle head, and an outlet of the discharge channel is connected to the inlet of the cavity; A heating mechanism is provided on the side of the nozzle body and is used to heat the thermoplastic in the nozzle body; The connecting mechanism includes a connecting block and a nut. The connecting block is used to connect the nozzle body and the nozzle head. The nut is used to connect the nozzle head and the cavity. A connecting port is provided on the surface of the discharge port. A connecting groove is provided in the connecting port. The connecting block is provided on the side of the nozzle head. The connecting block is connected to the nozzle body through the connecting groove.

2. The side-injection hot runner mold according to claim 1, characterized in that: The discharge channel is communicated with the feed channel.

3. The side-injection hot runner mold according to claim 1, characterized in that: A heat-insulating gasket is provided between the outlet of the nozzle head and the cavity.

4. The side-injection hot runner mold according to claim 1, characterized in that: The mold cavity is provided with a positioning pin at a position relative to the contact portion of the nozzle head.

5. The side-injection hot runner mold according to claim 1, characterized in that: The heating mechanism includes an annular groove and a spiral heating rod. The annular groove is arranged on the circumferential surface of the nozzle body, and the spiral heating rod is arranged in the annular groove.

6. The side-injection hot runner mold according to claim 5, characterized in that: The heating mechanism further comprises a temperature sensor, which is arranged at the outlet of the nozzle body and is used to detect the temperature of the thermoplastic in the feed channel.

7. The side-injection hot runner mold according to claim 1, characterized in that: The nut is arranged at the outlet of the nozzle head, a thread is arranged at the connection between the cavity and the nozzle head, and the nut is connected to the side of the cavity through the thread.

8. The side-injection hot runner mold according to claim 1, characterized in that: The connecting mechanism further comprises a sealing ring, and when the connecting block is arranged in the connecting groove, the sealing ring contacts the side of the nozzle body.

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