Electromagnetic heating roller
By employing electromagnetic heating and a vent design in the heating roller, the problems of thermal efficiency, temperature control, and safety of traditional heating rollers are solved, achieving rapid heating and precise temperature control, thereby improving production efficiency and equipment stability.
Patent Information
- Application Number
- CN202423256444.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-29
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2034-12-29
AI Technical Summary
Traditional heating rollers have shortcomings in terms of thermal efficiency, temperature control accuracy, safety, and equipment maintenance, resulting in low production efficiency and high costs.
The electromagnetic heating roller is used. By installing a coil support and an electromagnetic coil inside the tube, combined with the design of vent holes and conductive slip rings, rapid heating and temperature monitoring are achieved, avoiding excessive internal temperature from affecting the life of the equipment.
It improves heating speed and production efficiency, ensures precise temperature control, reduces equipment maintenance costs and operational risks, and enhances equipment stability and safety.
Smart Images
Figure CN223744935U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heating roller technology, specifically to an electromagnetic heating roller. Background Technology
[0002] In industrial production, especially in the processing of materials such as plastic film, paper, and textiles, heated rollers are a key piece of equipment. Their main function is to heat the roller body to dry, plasticize, and shape the materials in order to meet production process requirements and ensure product quality.
[0003] Based on the above, the inventors have discovered the following problems: Traditional heating roller technology has revealed many issues in long-term application. Among them, methods represented by steam heating, thermal oil heating, and resistance wire heating have significant shortcomings in terms of thermal efficiency, temperature control accuracy, safety, and equipment maintenance. Steam heating systems have complex structures, requiring large steam boilers and complex piping networks. Energy loss is high during heat transfer, and temperature control response is slow, making it difficult to achieve precise temperature control and leading to fluctuations in product quality. Although thermal oil heating improves temperature uniformity to some extent, thermal oil itself has safety hazards such as flammability, explosiveness, and leakage, requiring regular inspection and replacement, which increases equipment maintenance costs and operational risks. Resistance wire heating has problems such as uneven heating and easy oxidation and burnout of the resistance wire. Frequent failures and repairs not only affect production continuity but also increase costs due to frequent replacement of the resistance wire.
[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided an electromagnetic heating roller in order to achieve a more practical value. Utility Model Content
[0005] The purpose of this invention is to provide an electromagnetic heating roller to solve the problems mentioned in the background art.
[0006] By adopting the above technical solution, the heating roller is heated by electromagnetic heating, which has a fast heating speed and can bring the roller body to the required working temperature in a short time, greatly improving production efficiency.
[0007] In view of the above problems, the technical solution proposed by this utility model is as follows:
[0008] An electromagnetic heating roller includes a main body and a connecting mechanism. The main body includes a tube, inside which a coil support is fixedly installed. An electromagnetic coil is sleeved on the outside of the coil support. A plurality of first mounting holes are formed at one outer edge of the tube, and a plurality of second mounting holes are formed at the other outer edge of the tube. The connecting mechanism includes a first shaft head and a second shaft head. A plurality of third mounting holes are formed at one outer edge of one end of the first shaft head, and a plurality of fourth mounting holes are formed at one outer edge of one end of the second shaft head. The plurality of third mounting holes correspond one-to-one with the first mounting holes, and the plurality of fourth mounting holes correspond one-to-one with the second mounting holes. A first screw is movably inserted into the third mounting hole, with one end of the first screw threadedly connected to the first mounting hole. A second screw is movably inserted into the fourth mounting hole, with one end of the second screw threadedly connected to the second mounting hole.
[0009] Furthermore, a first vent hole is provided at the center of the first shaft head, and a second vent hole is provided at the center of the second shaft head.
[0010] The beneficial effect of adopting the above-mentioned further solution is that by opening the first vent and the second vent, it is convenient for the heat inside the tube to be discharged, thus avoiding excessive internal temperature and affecting the service life of the electromagnetic coil.
[0011] Furthermore, a temperature sensing hole is provided at the outer edge of the tube near the second shaft head, and a temperature sensing wire hole is provided on the outer side of the second shaft head.
[0012] The beneficial effect of adopting the above-mentioned further solution is that by opening a temperature sensing hole at one end of the tube, it is convenient for the user to insert a temperature tube sensor, thereby enabling real-time monitoring of the temperature of the tube. By opening a temperature sensing wire hole on the outside of the second shaft head, it is convenient to install a temperature sensing wire inside it.
[0013] Furthermore, a temperature probe is provided inside the temperature probe hole, and one end of the temperature probe extends through the temperature probe hole to the inside of the second shaft head.
[0014] The beneficial effect of adopting the above-mentioned further solution is that by setting a temperature probe wire inside the temperature probe wire hole, with one end extending into the interior of the second shaft head, it is convenient to electrically connect with the conductive slip ring, thereby providing power to the temperature sensor.
[0015] Furthermore, a conductive slip ring is provided inside the second vent hole, and the conductive slip ring is electrically connected to the electromagnetic coil and the temperature probe wire through a wire.
[0016] The beneficial effect of adopting the above-mentioned further solution is that by setting a conductive slip ring inside the second vent hole and electrically connecting it to the electromagnetic coil and the temperature probe wire, the conductive slip ring can prevent the wire bundle from tangling when the tube rotates.
[0017] Furthermore, a ventilation groove is provided on one side of the second shaft head, and the ventilation groove communicates with the interior of the second ventilation hole.
[0018] The beneficial effect of adopting the above-mentioned further solution is that by opening a vent groove on one side of the second shaft head to make it communicate with the second vent hole, in conjunction with the first vent hole, the gas circulation inside the tube can be promoted, and the internal temperature can be prevented from becoming too high.
[0019] Furthermore, the tube body is made of carbon steel.
[0020] The beneficial effect of adopting the above-mentioned further solution is that by setting the pipe body to carbon steel, which has high thermal conductivity, it can better transfer heat, and has high strength and hardness, it can withstand greater radial pressure and axial tension.
[0021] The beneficial effects of this utility model are as follows: The electromagnetic heating roller obtained by the above design of this utility model has a coil support installed inside the tube body and an electromagnetic coil sleeved on the outside, which facilitates the installation and support of the electromagnetic coil and makes the outer side of the electromagnetic coil abut against the inner wall of the tube body, thereby improving the heat conduction efficiency. A first mounting hole is opened at one end of the outer edge of the tube body, which corresponds one-to-one with the third mounting hole opened at one end of the first shaft head, so that the first screw can be inserted into the third mounting hole and its one end can be threaded to the first mounting hole, which facilitates the fixing of the first shaft head and the tube body. A plurality of second mounting holes are opened at the other end of the tube body, which correspond one-to-one with the fourth mounting hole opened at one end of the second shaft head, so that the user can insert a second screw into the fourth mounting hole and its one end can be threaded to the second mounting hole, which facilitates the fixing of the second shaft head and the tube body. Attached Figure Description
[0022] Figure 1 This is a first partial cross-sectional schematic diagram of the electromagnetic heating roller disclosed in an embodiment of the present utility model;
[0023] Figure 2 This is a second partial cross-sectional schematic diagram of the electromagnetic heating roller disclosed in an embodiment of the present utility model;
[0024] Figure 3 This is a schematic diagram of a third partial cross-section of the tube body of the electromagnetic heating roller disclosed in an embodiment of this utility model;
[0025] Figure 4 This is a side view of the tube body of the electromagnetic heating roller disclosed in an embodiment of the present utility model;
[0026] Figure 5 This is a schematic diagram of the front cross-sectional structure of the first and second shaft heads of the electromagnetic heating roller disclosed in this embodiment of the present invention.
[0027] In the diagram: 100, main body; 1001, tube body; 1002, temperature probe hole; 1003, first mounting hole; 1004, second mounting hole; 1005, coil bracket; 1006, electromagnetic coil; 1007, temperature probe hole; 1008, temperature probe wire; 200, connecting mechanism; 2001, first shaft head; 2002, second shaft head; 2003, second screw; 2004, vent groove; 2005, conductive slip ring; 2006, first vent hole; 2007, second vent hole; 2008, third mounting hole; 2009, fourth mounting hole; 2010, first screw. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0029] Please see Figure 1 - Figure 5This utility model provides a technical solution: an electromagnetic heating roller, including a main body 100 and a connecting mechanism 200. The main body 100 includes a tube 1001, a coil support 1005 is fixedly installed inside the tube 1001, and an electromagnetic coil 1006 is sleeved on the outside of the coil support 1005. A plurality of first mounting holes 1003 are opened at one end of the outer edge of the tube 1001, and a plurality of second mounting holes 1004 are opened at the other end of the tube 1001. The connecting mechanism 200 includes a first shaft head 2001 and a second shaft head 2002. A plurality of third mounting holes 2008 are provided at one end of the outer edge of the first shaft 1003, and a plurality of fourth mounting holes 2009 are provided at one end of the outer edge of the second shaft 2002. The plurality of third mounting holes 2008 correspond one-to-one with the first mounting holes 1003, and the plurality of fourth mounting holes 2009 correspond one-to-one with the second mounting holes 1004. A first screw 2010 is movably inserted into the interior of each of the third mounting holes 2008, and one end of the first screw 2010 is threaded into the first mounting hole 1003. A second screw 2003 is movably inserted into the interior of each of the fourth mounting holes 2009. One end is threaded to the second mounting hole 1004. A coil bracket 1005 is installed inside the tube body 1001, and an electromagnetic coil 1006 is sleeved on its outside, facilitating the installation and support of the electromagnetic coil 1006. This also ensures that the outer side of the electromagnetic coil 1006 abuts against the inner wall of the tube body 1001, improving heat conduction efficiency. A first mounting hole 1003 is opened at the outer edge of one end of the tube body 1001, corresponding one-to-one with the third mounting hole 2008 opened at one end of the first shaft head 2001, thus facilitating insertion into the third mounting hole 2008. The first screw 2010 is screwed in, with one end threaded into the first mounting hole 1003, to facilitate fixing the first shaft head 2001 to the tube body 1001. Several second mounting holes 1004 are opened at the outer edge of the other end of the tube body 1001, corresponding one-to-one with the fourth mounting hole 2009 opened at one end of the second shaft head 2002. This allows the user to easily insert the second screw 2003 into the fourth mounting hole 2009, with one end threaded into the second mounting hole 1004, to facilitate fixing the second shaft head 2002 to the tube body 1001.
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] Please see Figure 1 - Figure 5A first vent 2006 is provided at the center of the first shaft head 2001, and a second vent 2007 is provided at the center of the second shaft head 2002. A temperature sensing hole 1007 is provided at the outer edge of the tube body 1001 near the second shaft head 2002. A temperature sensing wire hole 1002 is provided on the outer side of the second shaft head 2002. A temperature sensing wire 1008 is provided inside the temperature sensing wire hole 1002, and one end of the temperature sensing wire 1008 extends through the temperature sensing wire hole 1002 into the interior of the second shaft head 2002. A conductive slip ring 2005 is provided inside the second vent 2007. The conductive slip ring 2005 is electrically connected to the electromagnetic coil 1006 and the temperature sensing wire 1008 through a wire. By providing the first vent 2006 and the second vent 2007, heat can be easily discharged from the tube body 1001, preventing its internal temperature from becoming too high and affecting its performance. To extend the service life of the electromagnetic coil 1006, a temperature sensing hole 1007 is provided at the outer edge of one end of the tube 1001, allowing the user to easily insert a temperature sensor for real-time monitoring of the tube 1001's temperature. A temperature sensing wire hole 1002 is provided on the outer side of the second shaft head 2002, facilitating the installation of a temperature sensing wire 1008 inside. The temperature sensing wire 1008 is installed inside the temperature sensing wire hole 1002, with one end extending into the interior of the second shaft head 2002, allowing for electrical connection with the conductive slip ring 2005 to provide power to the temperature sensor. A conductive slip ring 2005 is installed inside the second vent hole 2007, electrically connecting the electromagnetic coil 1006 and the temperature sensing wire 1008. When the tube 1001 rotates, the conductive slip ring 2005 prevents the wires from tangling.
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0033] Please see Figure 1 - Figure 5 A vent groove 2004 is provided on one side of the second shaft head 2002. The vent groove 2004 communicates with the interior of the second vent hole 2007. The tube body 1001 is made of carbon steel. By providing a vent groove 2004 on one side of the second shaft head 2002 to communicate with the second vent hole 2007, and in conjunction with the first vent hole 2006, the gas circulation inside the tube body 1001 can be promoted, and the internal temperature can be prevented from becoming too high. By making the tube body 1001 of carbon steel, it is possible to better transfer heat due to its high thermal conductivity, and it also has high strength and hardness, and can withstand greater radial pressure and axial tension.
[0034] Specifically, the working principle of this electromagnetic heating roller is as follows: During use, the electromagnetic coil 1006 is sleeved on the outside of the coil support 1005, which is fixedly installed inside the tube 1001, ensuring good heat conduction by placing the outer side of the electromagnetic coil 1006 against the inner wall of the tube 1001. When alternating current is passed through the electromagnetic coil 1006, based on the law of electromagnetic induction, an alternating magnetic field is generated. An induced electromotive force is generated inside the tube 1001 within this magnetic field, thus forming an induced current. According to Joule's law, these induced currents flowing inside the tube 1001 generate heat due to resistance, thus heating the tube 1001. The first shaft head 2001 is connected to the tube 1001 by a first screw 2010. The first screw 2010 passes through the third mounting hole 2008 of the first shaft head 2001 and is threadedly connected to the first mounting hole 1003 at the outer edge of one end of the tube 1001, thereby fixing the first shaft head 2001 to the tube 1001. Similarly, the second shaft head 2002 is connected to the tube 1001 by a second screw 2003. 3. The shaft passes through the fourth mounting hole 2009 of the second shaft head 2002 and is threadedly connected to the second mounting hole 1004 at the outer edge of the other end of the tube body 1001, ensuring that the shaft heads at both ends of the tube body 1001 are securely installed. A temperature sensor can be inserted into the temperature sensing hole 1007 for real-time monitoring of the temperature of the tube body 1001. One end of the temperature sensing wire 1008 passes through the temperature sensing wire hole 1002 on the outside of the second shaft head 2002 and extends into the second shaft head 2002, and is electrically connected to the conductive slip ring 2005 set in the second vent hole 2007. The conductive slip ring 2005 is in turn connected to the electromagnetic coil 10. 06 Electrical connection: When the tube body 1001 rotates, the conductive slip ring 2005 ensures a stable circuit connection between the temperature probe wire 1008 and the electromagnetic coil 1006, preventing wire tangling. The first vent hole 2006 of the first shaft head 2001, the second vent hole 2007 of the second shaft head 2002, and the vent groove 2004 on one side of the second shaft head 2002 that communicates with the second vent hole 2007 work together to promote gas circulation inside the tube body 1001, preventing the electromagnetic coil 1006 from being affected by excessive temperature, and ensuring the electromagnetic heating roller operates stably for a long time.
Claims
1. An electromagnetic heating roller characterized by, The utility model provides a temperature control device, including main part (100) and connecting mechanism (200), the main part (100) includes the pipe body (1001), the inside fixed mounting of pipe body (1001) has the coil support (1005), the outside of coil support (1005) is equipped with the electromagnetic coil (1006), the outer edge of one end of pipe body (1001) is equipped with a plurality of first installation hole (1003), the outer edge of the other end of pipe body (1001) is equipped with a plurality of second installation hole (1004), the connecting mechanism (200) includes first axle head (2001) and second axle head (2002), the outer edge of one end of first axle head (2001) is equipped with a plurality of third installation hole (2008), the outer edge of one end of second axle head (2002) is equipped with a plurality of fourth installation hole (2009), a plurality of third installation hole (2008) and first installation hole (1003) one to one correspondence, a plurality of fourth installation hole (2009) and second installation hole (1004) one to one correspondence, the inside movable insertion of third installation hole (2008) has first screw (2010), and one end of first screw (2010) is connected with first installation hole (1003) threadedly, the inside movable insertion of fourth installation hole (2009) has second screw (2003), and one end of second screw (2003) is connected with second installation hole (1004) threadedly.
2. An electromagnetic heating roller according to claim 1, wherein The center of first axle head (2001) is equipped with first air hole (2006), and the center of second axle head (2002) is equipped with second air hole (2007).
3. An electromagnetic heating roller according to claim 2, wherein The outer edge of one end of pipe body (1001) near second axle head (2002) is equipped with temperature detection hole (1007), and the outside of second axle head (2002) is equipped with temperature detection wire hole (1002).
4. An electromagnetic heating roller according to claim 3, wherein The inside of temperature detection wire hole (1002) is equipped with temperature detection wire (1008), and one end of temperature detection wire (1008) extends to the inside of second axle head (2002) through temperature detection wire hole (1002).
5. An electromagnetic heating roller as claimed in claim 4, wherein The inside of second air hole (2007) is equipped with conductive slip ring (2005), and the conductive slip ring (2005) is electrically connected between electromagnetic coil (1006) and temperature detection wire (1008) through lead wire.
6. An electromagnetic heating roller as defined in claim 1, wherein One side of second axle head (2002) is equipped with air passage (2004), and the air passage (2004) is communicated with the inside of second air hole (2007).
7. An electromagnetic heating roller as defined in claim 1, wherein The pipe body (1001) is made of carbon steel.