Energy-saving hot runner

Abstract

The utility model discloses an energy-saving hot runner. The hot runner structure comprises a hot runner plate and a hot nozzle, the hot nozzle is arranged on one side of the hot runner plate, and the periphery of the hot runner plate and / or the hot nozzle is coated with a composite heat insulation layer made of multiple layers of heat insulation materials. The composite heat insulation layer prevents the heat of the hot runner plate and the hot nozzle from dissipating outwards and keeps the heat of the hot runner plate and the hot nozzle warm, so that the heat utilization efficiency is improved, and the overall energy consumption is further reduced. Meanwhile, the composite heat insulation layer has a heat insulation effect, so that the safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hot runners, in particular to an energy-saving hot runner. Background Art

[0002] In existing hot runner systems, the nozzle is mounted directly on the hot runner plate (i.e., manifold). Because the hot runner plate and nozzle require heating to maintain the molten plastic in the runner, both require heating devices. Heat from the hot runner plate and nozzle dissipates through the outer walls. This heat loss results in high energy consumption for the hot runner. Furthermore, the high outer wall temperatures of the hot runner plate and nozzle pose a safety hazard. Utility Model Content

[0003] The utility model aims to provide an energy-saving hot runner capable of reducing the temperature of a hot runner plate and / or an outer wall of a hot nozzle.

[0004] The purpose of this utility model is achieved like this.

[0005] An energy-saving hot runner comprises a hot runner plate and a hot nozzle. The hot nozzle is arranged on one side of the hot runner plate. The periphery of the hot runner plate and / or the hot nozzle is covered with a composite heat insulation layer made of multiple layers of heat insulation material.

[0006] The above technical solution can also be further improved as follows.

[0007] Furthermore, the composite insulation layer includes a porous vacuum silicon layer, a thermal insulation cotton layer, and a shaped thermal insulation film. The porous vacuum silicon layer is coated on the hot runner plate and / or the outer periphery of the nozzle, the thermal insulation cotton layer is coated on the porous vacuum silicon layer, and the shaped thermal insulation film is coated on the thermal insulation cotton layer. This multi-layer insulation design improves the thermal insulation effect.

[0008] Furthermore, the shaped heat-insulating film is tin foil, which is easy to shape and reflects heat outward, thereby improving heat utilization efficiency.

[0009] Furthermore, the composite heat insulation layer is provided with avoidance positions corresponding to the main nozzle and / or the outlet of the hot nozzle of the hot runner plate, so that the main nozzle and the outlet of the hot nozzle of the hot runner plate can operate normally.

[0010] The composite heat insulation layer of the utility model blocks the heat from the hot runner plate and the nozzle from escaping outward, thereby keeping the hot runner plate and the nozzle warm, improving heat utilization efficiency and thus reducing overall energy consumption. At the same time, the composite heat insulation layer has a heat insulation effect and improves safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a structural diagram of the hot runner installed on the fixed mold.

[0012] Figure 2 for Figure 1 Schematic diagram of the cross-section structure.

[0013] Figure 3 for Figure 1 Enlarged schematic diagram of part A in the middle.

[0014] Figure 4 for Figure 2 Enlarged schematic diagram of part B in the middle. DETAILED DESCRIPTION

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Example 1, see Figure 1-4 As shown, an energy-saving hot runner includes a hot runner plate 1 and a hot nozzle. The hot nozzle 2 is arranged on one side of the hot runner plate 1. The outer periphery of the hot runner plate 1 and the hot nozzle 2 is covered with a composite thermal insulation layer 3 made of a multi-layer thermal insulation material. The composite thermal insulation layer 3 is provided with avoidance positions corresponding to the main nozzle of the hot runner plate 1 and the discharge port of the hot nozzle 2.

[0017] In this embodiment, the composite thermal insulation layer 3 includes a porous vacuum silicon layer 4, a thermal insulation cotton layer 5, and a shaped thermal insulation film 6. The porous vacuum silicon layer 4 is coated on the periphery of the hot runner plate 1 and the hot nozzle 2, the thermal insulation cotton layer 5 is coated on the outside of the porous vacuum silicon layer 4, and the shaped thermal insulation film 6 is coated on the outside of the thermal insulation cotton layer 5. Preferably, the shaped thermal insulation film 6 is tin foil.

[0018] Heat generated by the hot runner plate 1 and nozzle 2 is transferred outward through the outer wall. Any excess heat is blocked by the porous vacuum silicone layer 4 and the thermal insulation layer 5, and ultimately reflected back to the hot runner plate 1 and nozzle 2 by the shaped thermal insulation film 6. The composite thermal insulation layer 3 prevents direct contact between the hot runner plate 1 and nozzle 2, while the outer surface of the shaped thermal insulation film 6 remains cool, minimizing burns caused by accidental contact. This reduces heat loss in the hot runner, improves heat utilization efficiency, and ultimately reduces overall energy consumption, making the hot runner more energy-efficient and environmentally friendly compared to existing systems.

Claims

1. An energy-saving hot runner, comprising a hot runner plate and a hot nozzle, wherein the hot nozzle is arranged on one side of the hot runner plate, and is characterized in that: The periphery of the hot runner plate and / or the hot nozzle is covered with a composite insulation layer made of multiple layers of insulation material; the composite insulation layer includes a porous vacuum silicon layer, an insulation cotton layer and a shaping insulation film, the porous vacuum silicon layer is covered on the periphery of the hot runner plate and / or the hot nozzle, the insulation cotton layer is covered on the outside of the porous vacuum silicon layer, and the shaping insulation film is covered on the outside of the insulation cotton layer.

2. The energy-saving hot runner according to claim 1, characterized in that: The shaped heat-insulating film is tinfoil.

3. The energy-saving hot runner according to claim 1, characterized in that: The composite heat insulation layer is respectively provided with avoidance positions corresponding to the main nozzle and / or the discharge port of the hot nozzle of the hot runner plate.

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