Hot plate heating device for vulcanizing machine and vulcanizing machine

Abstract

This utility model provides a hot plate heating device for a vulcanizing machine and a vulcanizing machine. The hot plate heating device for the vulcanizing machine includes a base and a coil. At least a portion of the coil is embedded in the base. The coil includes lines, which are continuously arranged circumferentially along the base to form a spiral structure. Along the radial direction of the base, the distance between segments of adjacent layers of lines is not completely equal. This application solves the problem of uneven heating in existing electric heating technologies.

Description

Technical Field

[0001] This utility model relates to the field of rubber product processing, and more specifically, to a hot plate heating device for a vulcanizing machine and a vulcanizing machine. Background Technology

[0002] As a key piece of equipment in rubber product manufacturing, the heating method of a vulcanizing machine directly affects production efficiency and product quality. Traditional vulcanizing machines require large boiler systems, resulting in high initial investment, safety hazards, and maintenance costs. Traditional hot plate heating methods include electric heating, steam heating, and oil heating. Steam heating and oil heating have low thermal efficiency, high energy consumption, and the oil is prone to aging and deterioration, causing environmental pollution. While electric heating does not have these drawbacks, uneven heating can lead to uneven vulcanization. Utility Model Content

[0003] The main purpose of this utility model is to provide a hot plate heating device for a vulcanizing machine and a vulcanizing machine, so as to solve the problem of uneven heating by electric heating in the prior art.

[0004] To achieve the above objectives, according to one aspect of the present invention, a hot plate heating device for a vulcanizing machine is provided, comprising a base and a coil, at least a portion of which is embedded in the base. The coil includes lines, which are continuously arranged circumferentially along the base and form a spiral structure. Along the radial direction of the base, the distance between segments of adjacent layers of lines is not completely equal.

[0005] Furthermore, along the radial direction of the substrate, the distance between segments of adjacent layers first increases and then decreases.

[0006] Furthermore, the coil includes an outer coil portion and an inner coil portion. Along the radial direction of the substrate, the outer coil portion is located outside the inner coil portion. Within the outer coil portion, the distance between segments of adjacent two layers of wire gradually increases, while within the inner coil portion, the distance between segments of adjacent two layers of wire gradually decreases.

[0007] Furthermore, within the outer ring, the distance between segments of two adjacent lines is 25-50 mm.

[0008] Furthermore, the substrate includes a hot plate and a functional layer, which are stacked together, and at least one of the hot plate and the functional layer has a groove with the opening direction of the groove facing the surface of the stacked hot plate and functional layer, and at least a portion of the coil is embedded in the groove.

[0009] Furthermore, the functional layer includes a first magnetic insulating layer, with a groove on the side of the hot plate facing the functional layer, and the first magnetic insulating layer covering the opening side of the groove; and a heat insulation layer, which is stacked with the first magnetic insulating layer and located on the side of the first magnetic insulating layer away from the hot plate.

[0010] Furthermore, the first magnetic insulating layer comprises a stainless steel layer and a silicon steel layer, with the silicon steel layer being closer to the hot plate than the stainless steel layer.

[0011] Furthermore, the silicon steel layer includes multiple silicon steel sub-layers, which are stacked sequentially. Each silicon steel sub-layer includes multiple sub-segments, which are sequentially spliced ​​together circumferentially to form a ring structure. A splicing line is formed between two adjacent sub-segments, and the splicing lines between two adjacent silicon steel sub-layers are staggered along the stacking direction.

[0012] Furthermore, an angle of 5-15° is formed between the splicing lines of two adjacent silicon steel sublayers.

[0013] According to another aspect of the present invention, a vulcanizing machine is provided, including the above-described vulcanizing machine hot plate heating device.

[0014] By applying the technical solution of this utility model, the following technical effects are achieved:

[0015] 1. The wire is a current-carrying conductor, allowing the entire coil to be heated through electromagnetic induction. The wire is introduced from one end of the substrate, continuously arranged circumferentially to form a spiral structure. Through experimental simulation, the wire winding density is increased in areas of lower temperature and decreased in areas of higher temperature, resulting in uneven distances between segments of adjacent wire layers along the radial direction of the substrate. Because the wire is continuously arranged circumferentially, the coil current direction is consistent, improving heating efficiency. Furthermore, a single wire can heat the entire hot plate, reducing the number of electromagnetic heaters and lowering production costs. Uniform temperature distribution reduces the likelihood of uneven vulcanization. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0017] Figure 1 An explosion diagram of the heating device of this application is shown;

[0018] Figure 2 A top view of the coil of this application is shown;

[0019] Figure 3 A simulation diagram showing that the coil arrangement distances in this application are not completely equal is shown;

[0020] Figure 4 A simulation diagram showing the coils of this application with equal spacing is shown.

[0021] The above figures include the following reference numerals:

[0022] 10. Substrate; 20. Coil; 30. First magnetic layer; 40. Thermal insulation layer; 50. Second magnetic layer. Detailed Implementation

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0025] In this utility model, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0026] To address the problem of uneven heating caused by electric heating in existing technologies, this invention provides a hot plate heating device for a vulcanizing machine and a vulcanizing machine itself.

[0027] See Figures 1 to 4 The hot plate heating device of the vulcanizing machine includes a base 10 and a coil 20. At least a portion of the coil 20 is embedded in the base 10. The coil 20 includes lines, which are continuously arranged along the circumference of the base 10 to form a spiral structure. Along the radial direction of the base 10, the distance between segments of adjacent layers of lines is not completely equal.

[0028] The wires are current-carrying conductors, allowing the entire coil 20 to be heated through electromagnetic induction. The wires are introduced from one end of the base 10, continuously arranged circumferentially to form a spiral structure. Through experimental simulation, the wire winding density is increased in areas of lower temperature and decreased in areas of higher temperature, resulting in uneven spacing between segments of adjacent wire layers along the radial direction of the base 10. Because the wires are continuously arranged circumferentially along the base 10, the current direction in the coil 20 is consistent, improving the heating efficiency of the coil 20. Furthermore, a single wire can heat the entire hot plate, reducing the number of electromagnetic heaters and lowering production costs. The temperature is also more uniform, reducing the occurrence of uneven vulcanization.

[0029] In this application, along the radial direction of the substrate 10, the distance between segments of adjacent layers first increases and then decreases.

[0030] The coil 20 includes an outer coil portion and an inner coil portion. Along the radial direction of the base 10, the outer coil portion is located outside the inner coil portion. In the outer coil portion, the distance between segments of two adjacent layers of wire gradually increases, while in the inner coil portion, the distance between segments of two adjacent layers of wire gradually decreases.

[0031] Within the outer ring, the distance between segments of two adjacent lines is 25-50mm.

[0032] During the process of winding the wire into coil 20, coil 20 is introduced from one end and wound around the outside of the hot plate. Coil 20 can be wound 10-20 times, with a spacing of 25-50mm between the winding coils. To ensure the temperature uniformity of the hot plate surface, the spacing of the outer coils first increases and then decreases from the outside to the inside. After the outer coils of coil 20 are wound, they are wound around the inside. After the inner coils of coil 20 are wound, they are connected by threading insulation cotton through the top. Finally, coil 20 is led out from the top.

[0033] In this application, the substrate 10 includes a hot plate and a functional layer, which are stacked together, and at least one of the hot plate and the functional layer has a groove. The opening of the groove faces the surface of the stacked hot plate and the functional layer, and at least a portion of the coil 20 is embedded in the groove.

[0034] The hot plate is the main heating plate, while the functional layer primarily serves to prevent magnetic leakage and maintain heat. To improve the overall heat retention of the heating device and reduce magnetic field leakage, the coil 20 needs to be completely housed inside the base 10. Therefore, a groove is provided on the base 10 to accommodate the coil. Since the body is divided into a functional layer and a hot plate, grooves can be provided on both the hot plate and the functional layer for placing the coil 20. However, since the functional layer primarily serves to prevent magnetic leakage and maintain heat, it is optimal to have the groove on the hot plate to avoid affecting the heat retention and magnetic insulation functions of the functional layer.

[0035] In this application, the functional layer includes a first magnetic insulating layer 30 and a heat insulation layer 40. The hot plate has a groove on the side facing the functional layer. The first magnetic insulating layer 30 covers the opening side of the groove. The heat insulation layer 40 is stacked with the first magnetic insulating layer 30 and is located on the side of the first magnetic insulating layer 30 away from the hot plate.

[0036] The first magnetic insulating layer 30 includes a stainless steel layer and a silicon steel layer, with the silicon steel layer being closer to the hot plate than the stainless steel layer.

[0037] The first magnetic insulating layer 30 primarily serves to maintain magnetism, reducing electromagnetic field leakage and thus improving the heating effect of the hot plate while reducing energy waste. The first magnetic insulating layer 30 mainly covers the surface of the hot plate, reducing magnetic field leakage from its surface. Furthermore, the vulcanizing machine hot plate heating device also includes a second magnetic insulating layer 50, which is disposed on the outer peripheral side of the hot plate and further reduces magnetic field leakage from its outer peripheral side.

[0038] The insulation layer 40 mainly serves to keep the heat in the room. During the use of the heating device, heat exchange with the surrounding environment with a lower temperature is inevitable, resulting in heat loss. Therefore, the insulation layer 40 is set up to reduce heat loss and lower costs.

[0039] In this application, the silicon steel layer includes multiple silicon steel sub-layers, which are stacked sequentially. Each silicon steel sub-layer includes multiple sub-segments, which are sequentially spliced ​​together circumferentially to form a ring structure. A splicing line is formed between two adjacent sub-segments, and the splicing lines between two adjacent silicon steel sub-layers are staggered along the stacking direction.

[0040] By using multiple layers of magnetically insulating silicon steel, the difficulty of magnetic field passage is increased, thereby improving the magnetic retention effect. To facilitate installation and disassembly of the silicon steel layers, the sublayers are divided into multiple segments. During installation, these segments can be spliced ​​together to form a single silicon steel sublayer. This also avoids the inconvenience of handling a single silicon steel sublayer due to its excessive size and weight. The sub-segments are smaller and lighter than the entire sublayer, making installation easier for workers.

[0041] A splicing line is formed between two adjacent sub-segments. The magnetic field may leak from the gap of the splicing line. Therefore, the splicing lines between two adjacent silicon steel sub-layers are staggered along the stacking direction. In this way, the magnetic field leaking from the splicing line of the first layer will be blocked by the silicon steel sub-layer of the second layer, thereby reducing the leakage of the magnetic field.

[0042] In this application, the splicing lines between adjacent silicon steel sublayers form an angle of 5-15°. To facilitate the splicing of the silicon steel sublayers, the sub-segments are typically 4-12 segments. The angle formed between the splicing lines needs to be less than the central angle of the sub-segment to avoid overlapping of the splicing lines.

[0043] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0044] 1. The wires are current-carrying conductors, allowing the entire coil 20 to be heated through electromagnetic induction. The wires are introduced from one end of the base 10, continuously arranged circumferentially to form a spiral structure. Through experimental simulation, the wire winding density is increased in areas of lower temperature and decreased in areas of higher temperature, resulting in uneven spacing between segments of adjacent wire layers along the radial direction of the base 10. Because the wires are continuously arranged circumferentially along the base 10, the current direction in the coil 20 is consistent, improving the heating efficiency of the coil 20. Furthermore, a single wire can heat the entire hot plate, reducing the number of electromagnetic heaters and lowering production costs. Uniform temperature distribution throughout the coil reduces the likelihood of uneven vulcanization.

[0045] 2. The hot plate is the main heating plate, while the functional layer mainly serves to prevent magnetic leakage and maintain heat. To improve the heat retention effect of the entire heating device and reduce magnetic field leakage, the coil 20 needs to be completely placed inside the base 10. Therefore, a groove is provided on the base 10 to accommodate the coil. Since the body is divided into a functional layer and a hot plate, grooves can be provided on both the hot plate and the functional layer for placing the coil 20.

[0046] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0047] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0048] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0049] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A hot plate heating device for a vulcanizing machine, characterized in that, It includes a base (10) and a coil (20), at least a portion of which is embedded in the base (10). The coil (20) includes lines that are continuously arranged along the circumference of the base (10) and form a spiral structure. Along the radial direction of the base (10), the distance between segments of adjacent layers of the lines is not completely equal.

2. The hot plate heating device for a vulcanizing machine according to claim 1, characterized in that, Along the radial direction of the substrate (10), the distance between segments of adjacent layers of the lines first increases and then decreases.

3. The hot plate heating device for a vulcanizing machine according to claim 2, characterized in that, The coil (20) includes an outer coil portion and an inner coil portion. Along the radial direction of the base (10), the outer coil portion is located outside the inner coil portion. In the outer coil portion, the distance between segments of two adjacent layers of the line gradually increases, while in the inner coil portion, the distance between segments of two adjacent layers of the line gradually decreases.

4. The hot plate heating device for a vulcanizing machine according to claim 3, characterized in that, Within the outer ring portion, the distance between segments of two adjacent lines is 25-50 mm.

5. The hot plate heating device for a vulcanizing machine according to any one of claims 1 to 4, characterized in that, The substrate (10) includes a hot plate and a functional layer, the hot plate and the functional layer are stacked, and at least one of the hot plate and the functional layer has a groove, the opening of the groove is directed toward the surface of the stacked hot plate and the functional layer, and at least a portion of the coil (20) is embedded in the groove.

6. The hot plate heating device for a vulcanizing machine according to claim 5, characterized in that, The functional layer includes: The first magnetic layer (30) has a groove on the side of the hot plate facing the functional layer, and the first magnetic layer (30) covers the opening side of the groove; The heat insulation layer (40) is stacked with the first magnetic insulation layer (30) and is located on the side of the first magnetic insulation layer (30) away from the hot plate.

7. The hot plate heating device for a vulcanizing machine according to claim 6, characterized in that, The first magnetic insulating layer (30) includes a stainless steel layer and a silicon steel layer, wherein the silicon steel layer is closer to the hot plate than the stainless steel layer.

8. The hot plate heating device for a vulcanizing machine according to claim 7, characterized in that, The silicon steel layer includes multiple silicon steel sub-layers, which are stacked sequentially. Each silicon steel sub-layer includes multiple sub-segments, which are sequentially spliced ​​together circumferentially to form a ring structure. A splicing line is formed between two adjacent sub-segments, and the splicing lines between two adjacent silicon steel sub-layers are staggered along the stacking direction.

9. The hot plate heating device for a vulcanizing machine according to claim 8, characterized in that, An angle of 5-15° is formed between the splicing lines of two adjacent silicon steel sublayers.

10. A vulcanizing machine, characterized in that, The hot plate heating device for a vulcanizing machine includes any one of claims 1 to 9.

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