Hot runner system assembly

By designing a detachable main and secondary splitter structure, combined with fastening pins and sealing rings, the problem of poor applicability of the existing hot runner system is solved, and the flexible application and sealing of the hot runner system in different mold cavity is achieved.

CN223186901UActive Publication Date: 2025-08-05SUZHOU TEDLOCK HOT RUNNER SYST CO LTD
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Patent Information

Application Number
CN202421520988.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-28
Publication Date
2025-08-05
Estimated Expiration
2034-06-28

AI Technical Summary

Technical Problem

The number and position of the existing hot runner system are fixed, and the applicability is poor, so it cannot be flexibly applied in different mold cavity.

Method used

A hot runner system assembly including a main split plate and a secondary split plate is designed, which is detachable by connecting parts, and a tight bond between the main split plate and the secondary split plate is achieved by fastening pins and pushing block structure, and a sealing ring is provided at the connection to enhance sealing.

Benefits of technology

It realizes the detachability of the main and secondary diversion plates, which are more applicable, easy to operate and replace, and have good sealing at the connection, which is suitable for the needs of different mold cavity.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a hot runner system component which comprises a splitter plate, an injection nozzle, a driving cylinder body, a valve rod and a hot nozzle, the telescopic end of the lower part of the driving cylinder body is fixedly connected with the valve rod, the other end of the valve rod extends into the hot nozzle, and the splitter plate comprises a main splitter plate and an auxiliary splitter plate. The axis of the main splitter plate is provided with a transverse main sub-runner, the middle of the main splitter plate is provided with a main runner perpendicular to the main sub-runner, the main runner is communicated with the main sub-runner, the upper part of the main runner is provided with an injection nozzle, the axis of the auxiliary splitter plate is provided with a transverse auxiliary sub-runner, and the lower part of the auxiliary splitter plate is provided with a hot nozzle. A runner in the hot nozzle is communicated with the auxiliary runner, and the auxiliary splitter plate and the main splitter plate are fixedly connected through a connecting part. The main splitter plate and the auxiliary splitter plate can be detached, the corresponding auxiliary splitter plate and connecting parts can be replaced according to a mold cavity, operation and replacement are convenient, and applicability is higher.
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Description

Technical Field

[0001] The utility model relates to the technical field of hot runner processing, in particular to a hot runner system component. Background Art

[0002] Injection molding technology has become a crucial industrial production method, boasting advantages such as high production speed, high efficiency, and dimensional precision. It is widely used in the production of plastic parts. The manifold in an injection mold, also known as a hot runner manifold, is the central component of the hot runner system in multi-cavity molds. It distributes the plastic melt from the main nozzle through the runners to the various injection nozzles. The manifold ensures uniform filling of the mold cavity, balanced plastic flow, and thermal balance in the system.

[0003] At present, most hot runner systems are integrated structures with fixed number and position of nozzles. They can only be used in specific situations and have poor applicability.

[0004] Therefore, those skilled in the art provide a hot runner system component to solve the problems raised in the above background technology. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a hot runner system component, including a diverter plate, an injection nozzle, a drive cylinder, a valve stem and a hot nozzle, the telescopic end of the lower part of the drive cylinder is fixedly connected to the valve stem, and the other end of the valve stem extends to the inside of the hot nozzle, the diverter plate includes a main diverter plate and an auxiliary diverter plate, a transverse main diverter channel is opened at the axis of the main diverter plate, a main channel perpendicular to the main diverter channel is opened in the middle of the main diverter plate, the main channel is connected to the main diverter channel, an injection nozzle is provided on the upper part of the main channel, a transverse auxiliary diverter channel is opened at the axis of the auxiliary diverter plate, a hot nozzle is provided at the lower part of the auxiliary diverter plate, the flow channel in the hot nozzle is connected to the auxiliary diverter channel, and the auxiliary diverter plate and the main diverter plate are fixedly connected by a connecting component.

[0006] Preferably, docking grooves are provided at both ends of the main diverter plate corresponding to the main diverter channel, and a docking groove is provided at the middle of one side of the auxiliary diverter plate corresponding to the auxiliary diverter channel. The docking grooves include a circular groove that cooperates with the docking ring and a conical groove that cooperates with the end head.

[0007] Preferably: the connecting component includes a flow tube, a docking ring, an end head, a mounting groove and a pushing block, docking rings are symmetrically arranged at both ends of the flow tube, and an end head is arranged at the end of the docking ring. The end head is a conical head, and a through hole communicating with the docking ring and the flow tube is opened at the center of the end head. At least two mounting grooves are opened at equal intervals on the side of the docking ring, a pushing block is arranged on the side near the end head in the mounting groove, and a tapered arc groove is opened on the opposite side of the pushing block.

[0008] Preferably: a countersunk pin hole corresponding to the mounting groove is opened on the side of the main diverter plate, a fastening pin is threadedly connected to the countersunk pin hole, the end of the fastening pin is inserted into the mounting groove and cooperates with the tapered arc groove on the push block to fasten the docking ring and end of the connecting component in the docking groove.

[0009] Preferably: the fastening pin includes a nail cap, a threaded rod, a cylindrical table, and a conical head. The threaded rod is fixedly provided at one end of the nail cap, the cylindrical table is fixedly provided at the other end of the threaded rod, and the conical head is fixedly provided at the other end of the cylindrical table. The conical head cooperates with the tapered arc groove on the pushing block. During the downward movement of the conical head, the pushing block will be squeezed so that the end head is close to the inner wall of the docking groove, thereby realizing a close combination of the connecting component with the main diverter plate and the auxiliary diverter plate.

[0010] Preferably, the fastening pin is used in conjunction with the mounting groove and the push block to fasten the connection structure, so that even when the flow channel pipe in the connecting component is very short, it can be easily connected to the main manifold plate and the auxiliary manifold plate.

[0011] Preferably, a sealing ring is provided at the connection between the circular groove and the conical groove in the docking groove, and the sealing ring is provided to enhance the sealing performance of the connection between the connecting component and the main diverter plate and the auxiliary diverter plate.

[0012] Preferably, a copper sleeve is provided on the outer side of the runner tube, and a heating wire is provided inside the copper sleeve for heating the runner tube to prevent the molten material from cooling inside the runner tube.

[0013] The technical effects and advantages of this utility model are:

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The main manifold and auxiliary manifold provided in the present invention can be detached, and the corresponding auxiliary manifold and connecting parts can be replaced according to the mold cavity, which is easy to operate and replace and has stronger applicability.

[0016] 2. The fastening pin provided in the present invention has a conical head which squeezes the push block during the downward movement, so that the end is closely attached to the inner wall of the docking groove, thereby achieving a tight combination of the connecting component and the main manifold and the auxiliary manifold.

[0017] 3. A sealing ring is provided at the connection between the circular groove and the conical groove in the docking groove provided in the present invention, and the sealing ring is provided to enhance the sealing performance of the connection between the connecting component and the main diverter plate and the auxiliary diverter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a top view of the structure of the hot runner system assembly provided in an embodiment of the present application;

[0019] Figure 2 Schematic diagram of the structure of the hot runner system assembly provided in an embodiment of the present application;

[0020] Figure 3 yes Figure 2 Structural diagram at point A in the middle;

[0021] Figure 4 is a structural diagram of the connection components in the hot runner system assembly provided in an embodiment of the present application;

[0022] Figure 5 This is a structural diagram of the fastening pins in the hot runner system assembly provided in an embodiment of the present application.

[0023] Among them: main diverter plate 1, main diverter channel 2, injection nozzle 3, auxiliary diverter plate 4, auxiliary diverter channel 5, connecting component 6, flow channel tube 61, docking ring 62, end head 63, mounting groove 64, push block 65, copper sleeve 7, fastening pin 8, nail cap 81, threaded rod 82, cylindrical platform 83, conical head 84, drive cylinder 9, valve stem 10, hot nozzle 11, sealing ring 12, countersunk pin hole 13. DETAILED DESCRIPTION

[0024] The present invention will be further described in detail below with reference to specific embodiments. The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

[0025] Example 1

[0026] See also Figure 1-5In this embodiment, a hot runner system component is provided, including a manifold, an injection nozzle 3, a drive cylinder 9, a valve stem 10 and a hot nozzle 11. The telescopic end of the lower part of the drive cylinder 9 is fixedly connected to the valve stem 10, and the other end of the valve stem 10 extends into the hot nozzle 11. The drive cylinder 9 is a prior art and can be directly purchased and obtained. Its specific structure is not described here. The manifold includes a main manifold 1 and an auxiliary manifold 4. A transverse main manifold 2 is provided at the axis of the main manifold 1. A main flow channel perpendicular to the main flow channel 2 is provided in the middle of the main manifold 1. The main flow channel is connected to the main flow channel 2. An injection nozzle 3 is provided on the upper part of the main flow channel. A transverse auxiliary flow channel 5 is provided at the axis of the auxiliary manifold 4. A hot nozzle 11 is provided at the lower part of the auxiliary diverter plate 4, and the flow channel in the hot nozzle 11 is connected with the auxiliary diverter channel 5. The auxiliary diverter plate 4 and the main diverter plate 1 are fixedly connected by a connecting component 6, and the connecting component 6 includes a flow channel tube 61, a docking ring 62, an end head 63, a mounting groove 64 and a pushing block 65. Docking rings 62 are symmetrically provided at both ends of the flow channel tube 61, and an end head 63 is provided at the end of the docking ring 62. The end head 63 is a conical head, and a through hole communicating with the docking ring 62 and the flow channel tube 61 is provided at the center of the end head 63. At least two mounting grooves 64 are provided at equal intervals on the side of the docking ring 62, and a pushing block 65 is provided on the side near the end head 63 in the mounting groove 64, and a tapered arc groove is provided on the opposite side of the pushing block 65.

[0027] A countersunk pin hole corresponding to the mounting groove is opened on the side of the main diverter plate 1, and a fastening pin 8 is threadedly connected in the countersunk pin hole. The end of the fastening pin 8 is inserted into the mounting groove 64 and cooperates with the tapered arc groove on the pushing block 65 to fasten the docking ring 62 and the end 63 of the connecting component 6 in the docking groove.

[0028] The fastening pin 8 includes a nail cap 81, a threaded rod 82, a cylindrical platform 83, and a conical head 84. The nail cap 81 is a hexagonal nail cap. The threaded rod 82 is fixedly provided at one end of the nail cap 81, and the cylindrical platform 83 is fixedly provided at the other end of the threaded rod 82. The conical head 84 is fixedly provided at the other end of the cylindrical platform 83. The conical head 84 cooperates with the tapered arc groove on the pushing block 65. When the fastening pin 8 is rotated by a hexagonal wrench, the pushing block 65 will be squeezed during the downward movement of the conical head 84, so that the end head 63 is close to the inner wall of the docking groove, thereby realizing a tight combination of the connecting component 6 with the main diverter plate 1 and the auxiliary diverter plate 4.

[0029] The main manifold plate 1 and the auxiliary manifold plate 4 can be detached, and the corresponding auxiliary manifold plate 4 and connecting component 6 can be replaced according to the mold cavity. The operation and replacement are convenient and the applicability is stronger.

[0030] The two ends of the main diverter plate 1 are provided with docking grooves corresponding to the main diverter channel 2, and the middle part of one side of the auxiliary diverter plate 4 is provided with a docking groove corresponding to the auxiliary diverter channel 5. The docking groove includes a circular groove that cooperates with the docking ring 62 and a conical groove that cooperates with the end head 63.

[0031] The fastening pin 8 cooperates with the mounting groove 64 and the push block 65 to fasten the connection structure, so that the flow channel pipe 61 in the connecting component 6 can be easily connected to the main diverter plate 1 and the auxiliary diverter plate 4 even when it is very short.

[0032] A sealing ring 12 is provided at the connection between the circular groove and the conical groove in the docking groove, and the sealing ring 12 is provided to enhance the sealing performance of the connection between the connecting component 6 and the main diverter plate 1 and the auxiliary diverter plate 4.

[0033] A copper sleeve 7 is sleeved on the outside of the flow tube 61 , and a heating wire is arranged inside the copper sleeve 7 for heating the flow tube 61 to prevent the molten material from cooling inside the flow tube 61 .

[0034] In Example 1, the control device that enables the device to work and its supporting control system, switch, and drive module are provided by the corresponding manufacturers. In addition, the power supply module, circuit and electronic components, and control module involved in the utility model are all existing technologies and can be fully implemented by those skilled in the art. Needless to say, the content protected by the utility model does not involve improvements to the internal structure and method.

[0035] Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without making any creative efforts should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in this utility model shall be implemented in accordance with conventional means in the field unless otherwise specified or limited.

Claims

1. A hot runner system component, comprising a manifold, an injection nozzle (3), a drive cylinder (9), a valve stem (10) and a hot nozzle (11), wherein the telescopic end of the lower portion of the drive cylinder (9) is fixedly connected to the valve stem (10), and the other end of the valve stem (10) extends into the interior of the hot nozzle (11), characterized in that: The diverter plate comprises a main diverter plate (1) and an auxiliary diverter plate (4); a transverse main diverter channel (2) is provided at the axis of the main diverter plate (1); a main flow channel perpendicular to the main diverter channel (2) is provided in the middle of the main diverter plate (1); the main flow channel is connected to the main diverter channel (2); an injection nozzle (3) is provided at the upper part of the main flow channel; a transverse auxiliary diverter channel (5) is provided at the axis of the auxiliary diverter plate (4); a hot nozzle (11) is provided at the lower part of the auxiliary diverter plate (4); the flow channel in the hot nozzle (11) is connected to the auxiliary diverter channel (5); the auxiliary diverter plate (4) and the main diverter are connected. The plates (1) are fixedly connected by a connecting component (6); the connecting component (6) includes a flow channel tube (61), a docking ring (62), an end head (63), a mounting groove (64) and a push block (65); the docking rings (62) are symmetrically arranged at both ends of the flow channel tube (61); the end head (63) is arranged at the end of the docking ring (62); the end head (63) is a conical head; a through hole communicating with the docking ring (62) and the flow channel tube (61) is opened at the center of the end head (63); at least two mounting grooves (64) are opened at equal intervals on the side of the docking ring (62); 4), a pushing block (65) is provided on one side of the proximal end head (63) in the mounting groove (64), and a tapered arc groove is provided on the opposite side of the pushing block (65); a countersunk pin hole (13) corresponding to the mounting groove is provided on the side of the main diverter plate (1), and a fastening pin (8) is connected to the internal thread of the countersunk pin hole (13), and the end of the fastening pin (8) is inserted into the mounting groove (64) and matched with the tapered arc groove on the pushing block (65), so as to fasten the docking ring (62) and the end head (63) of the connecting component (6) in the docking groove; the fastening pin (8) includes a nail cap (81) , a threaded rod (82), a cylindrical platform (83), and a conical head (84); one end of the nail cap (81) is fixedly provided with the threaded rod (82); the other end of the threaded rod (82) is fixedly provided with the cylindrical platform (83); the other end of the cylindrical platform (83) is fixedly provided with the conical head (84); the conical head (84) cooperates with the tapered arc groove on the pushing block (65); when the conical head (84) moves downward, it squeezes the pushing block (65), so that the end head (63) is closely attached to the inner wall of the docking groove, thereby realizing a tight combination of the connecting component (6) with the main diverter plate (1) and the auxiliary diverter plate (4).

2. A hot runner system component according to claim 1, characterized in that: The two ends of the main diverter plate (1) are provided with docking grooves corresponding to the main diverter channel (2), and the middle part of one side of the auxiliary diverter plate (4) is provided with a docking groove corresponding to the auxiliary diverter channel (5), and the docking groove includes a circular groove matched with the docking ring (62) and a conical groove matched with the end head (63).

3. A hot runner system component according to claim 1, characterized in that: By adopting the connection structure in which the fastening pin (8) cooperates with the mounting groove (64) and the pushing block (65) to fasten, the flow channel tube (61) in the connecting component (6) can be conveniently connected to the main diverter plate (1) and the auxiliary diverter plate (4) even when the flow channel tube (61) in the connecting component (6) is very short.

4. A hot runner system component according to claim 2, characterized in that: A sealing ring (12) is provided at the connection between the circular groove and the conical groove in the docking groove, and the sealing ring (12) is provided to enhance the sealing performance of the connection between the connecting component (6) and the main diverter plate (1) and the auxiliary diverter plate (4).

5. The hot runner system component according to claim 1, characterized in that: A copper sleeve (7) is sleeved on the outside of the flow tube (61), and a heating wire is arranged inside the copper sleeve (7) for heating the flow tube (61) to prevent the molten material from cooling inside the flow tube (61).