Quick-release modular circumferential heating coil
By combining modular design with nano-aerogel insulation pads, precise temperature control and convenient maintenance of the heating coil in the circumferential direction are achieved, solving the problems of high temperature requirements and maintenance costs of existing heating coils.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ERA CO LTD
- Filing Date
- 2025-08-01
- Publication Date
- 2026-07-07
AI Technical Summary
Existing heating coils are insufficient to meet the temperature requirements of different areas in the circumferential direction, and replacement and maintenance costs are high.
It adopts a quick-release modular design, dividing the heating coil into several rectangular plate-shaped heating modules. Each plate is equipped with a heating coil, and the heating is controlled by a controller. It uses a nano aerogel heat insulation pad to achieve precise temperature control and convenient maintenance.
It achieves precise temperature control of the heating coil in different areas of the circumferential direction, reducing maintenance and repair costs.
Smart Images

Figure CN224473449U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of extruder technology and relates to a quick-release modular circumferential heating coil. Background Technology
[0002] Heating coils are the core temperature control components in extrusion equipment. They are mainly used to ensure that plastic raw materials reach and maintain an ideal melting state during processing through precise heating, so as to guarantee the quality and efficiency of extrusion molding.
[0003] The existing heating coil structure generally includes a thermally conductive contact layer, an internal heating layer with an integrated heating module, an insulating protective layer, and an external insulation layer from the inside out. However, in the existing technology, the heating temperature requirements of different areas in the circumferential direction of the pipe during extrusion are actually different. The heating coil mentioned above is difficult to meet the actual needs of production and processing. Moreover, after periodic use, some areas of the heating coil may experience heating abnormalities or even fail to heat. In this case, the entire heating coil needs to be replaced, which results in excessively high maintenance and repair costs. Summary of the Invention
[0004] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a quick-release modular circumferential heating coil. The technical problem this invention aims to solve is: how to reduce maintenance and repair costs while meeting heating requirements.
[0005] The objective of this utility model can be achieved through the following technical solution: A quick-release modular circumferential heating coil, including a controller, characterized in that the quick-release modular circumferential heating coil further includes several heating module plates with heating coils integrated inside, each of the heating module plates is a rectangular plate and is bent along its length, each pair of adjacent heating module plates is snapped together, and a nano-aerogel heat insulation pad is provided at the snap-together of each pair of adjacent heating module plates, and the heating coil in each heating module plate is connected to the controller through a wire.
[0006] Compared to existing technologies, the quick-release modular circumferential heating coil disclosed in this application differs in that it is divided into several rectangular heating module plates. Each heating module plate contains a heating coil for generating heat. The heating coils in each module plate are connected to a controller via wires, allowing the controller to control the heating of each coil. This allows the heating module plates, working together to form a heating coil, to heat the plastic raw material. This structural design creates temperature differences in different areas of the quick-release modular circumferential heating coil in the circumferential direction. Precise temperature control of each area meets the actual processing requirements. The purpose is twofold: firstly, by placing a nano-aerogel insulation pad between every two adjacent heating module plates, the pad effectively pre-tightens the connection between the two heating module plates while simultaneously providing sufficient insulation through its material properties. This prevents heat conduction between adjacent heating module plates, ensuring that the temperature in each area remains constant. Secondly, if any one or more heating module plates malfunction after prolonged use, causing the heating temperature to fail to reach the expected level, workers can simply disassemble the malfunctioning heating module plate, inspect it, and then repair or replace it without replacing the entire structure, effectively reducing maintenance costs.
[0007] In the aforementioned quick-release modular circumferential heating coil, each heating module plate has a locking block at one end and a locking slot at the other end. Adjacent heating module plates are engaged through the locking block and the locking slot. Specifically, each heating module plate has a locking slot on one end face and a slot on the other end face. Two adjacent heating module plates are engaged by the locking block into the locking slot, thereby achieving a detachable connection through their engagement.
[0008] In the aforementioned quick-release modular circumferential heating ring, both the latch and the locking block have isosceles trapezoidal cross-sectional profiles when cut along the length of the heating module plate. This design allows for the locking point to be limited by the engagement of the outer wall of the locking block and the inner wall of the latch, effectively preventing the locking block from detaching from the latch, ensuring the connection strength between adjacent heating module plates, and thus guaranteeing the overall structural strength of the device.
[0009] In the aforementioned quick-release modular circumferential heating coil, the nano-aerogel insulation pad is fixed to the side and bottom walls of each of the bayonet openings. This arrangement ensures the installation stability of the nano-aerogel insulation pad, prevents displacement during assembly, and effectively separates the connection between two adjacent heating module plates, preventing heat transfer between adjacent heating module plates.
[0010] In the aforementioned quick-release modular circumferential heating coil, the number of controllers corresponds to the number of heating module boards, and each heating coil is connected to a corresponding controller. Preferably, multiple controllers can be used to control the heating coils in several heating module boards in a one-to-one correspondence.
[0011] Compared with existing technologies, this quick-release modular circumferential heating ring has the following advantages: multiple heating module plates with integrated heating rings are interlocked to form a complete heating ring. Faulty heating module plates can be disassembled and replaced later to achieve low-cost maintenance. Furthermore, the connection between adjacent heating module plates is separated by the setting of nano-aerogel heat insulation pads, thereby avoiding heat interference between adjacent module plates and ensuring that the heating temperature in different areas in the circumferential direction meets the actual requirements. Attached Figure Description
[0012] Figure 1 This is a top view of the quick-release modular circumferential heating coil.
[0013] Figure 2 yes Figure 1 A magnified view of a portion of point A in the middle.
[0014] Figure 3 It is a top view of any one of the heating module plates.
[0015] Figure 4 yes Figure 3 A magnified view of a section at point B in the middle.
[0016] Figure 5 This is a schematic diagram of the control process for this quick-release modular circumferential heating coil.
[0017] In the diagram, 1 is the controller; 2 is the heating module board; 21 is the card block; 22 is the bayonet; 23 is the heating coil; and 3 is the nano-aerogel insulation pad. Detailed Implementation
[0018] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.
[0019] like Figures 1-5As shown, this quick-release modular circumferential heating coil includes a controller 1 and several heating module plates 2. The heating module plates 2 are all rectangular plates, and each heating module plate 2 is curved in an arc shape along its length. Each heating module plate 2 has a slot 22 at one end and a block 21 at the other end. The slot 22 at one end of the heating module plate 2 is an isosceles trapezoid. The slot 22 is opened along the width direction of the heating module plate 2 and extends through its two sides. The block 21 at the other end of the heating module plate 2 is an isosceles trapezoid. The block 21 is arranged along the width direction of the heating module plate 2 and extends to the two edges of the end face of the heating module plate 2. It is worth mentioning that a nano-aerogel heat insulation pad 3 is formed and fixed on the side wall and bottom wall of each slot 22.
[0020] like Figure 1 As shown, each heating module plate 2 has a heating coil 23 formed therein. The structure of the heating coil 23 and the way it is installed in the heating module plate 2 are existing technologies, and will not be described in detail in this embodiment. Due to the arrangement of the heating coil 23, each heating module plate 2 has a wiring module port on its side wall for connecting wires, such as... Figure 5 As shown, during use, each plug module port and controller 1 interface are connected one by one by wires. Each controller 1 is used to precisely control each heating coil 23 to heat up, thereby heating each heating module board 2 to heat the raw materials.
[0021] During assembly, workers only need to snap two adjacent heating module plates 2 together using the locking block 21 and the locking slot 22. This allows for a detachable connection between the two adjacent heating module plates 2 via tenon and mortise joints. The shape matching of the locking block 21 and the locking slot 22 ensures the structural robustness of the quick-release modular circumferential heating ring in the circumferential direction. Furthermore, the nano-aerogel heat insulation pad 3 separates the outer wall of the locking block 21 and the inner wall of the locking slot 22. This increases the pre-tightening force between the two while the material properties of the nano-aerogel heat insulation pad 3 separate the heat between them, preventing heat transfer between the two adjacent heating module plates 2. This effectively ensures precise temperature control in each area of the inner wall of the quick-release modular circumferential heating ring, meeting actual processing requirements and effectively improving the quality of extruded products.
[0022] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.
[0023] Although this document frequently uses terms such as controller 1, heating module board 2, card block 21, bayonet 22, heating coil 23, and nano-aerogel insulation pad 3, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.
Claims
1. A quick-release modular circumferential heating coil, comprising a controller (1), characterized in that, This quick-release modular circumferential heating coil also includes several heating module plates (2) with heating coils (23) integrated inside. Each heating module plate (2) is a rectangular plate and is bent along its length. Every two adjacent heating module plates (2) are snapped together. A nano aerogel heat insulation pad (3) is provided at the snapping point of every two adjacent heating module plates (2). The heating coils (23) in each heating module plate (2) are connected to the controller (1) through wires.
2. The quick-release modular circumferential heating coil according to claim 1, characterized in that, Each heating module plate (2) has a locking block (21) at one end and a locking slot (22) at the other end. Two adjacent heating module plates (2) are connected by the locking block (21) and the locking slot (22).
3. The quick-release modular circumferential heating coil according to claim 2, characterized in that, The cross-sectional profiles of the bayonet (22) and the card block (21) cut along the length of the heating module plate (2) are both isosceles trapezoids.
4. The quick-release modular circumferential heating coil according to claim 2 or 3, characterized in that, The nano-aerogel heat insulation pad (3) is fixed on the side wall and bottom wall of each of the bayonet slots (22).
5. The quick-release modular circumferential heating coil according to claim 4, characterized in that, The number of controllers (1) corresponds to the number of heating module boards (2), and each heating coil (23) is connected to each controller (1) in a one-to-one correspondence.