Electromagnetic heating roller capable of uniformly heating

Abstract

The utility model relates to the technical field of electromagnetic heating rollers, and discloses a uniform heating electromagnetic heating roller which comprises a roller body, a uniform heating mechanism is arranged in the roller body, and the uniform heating mechanism comprises a moving block, a sliding block, a plurality of heat conduction balls, a reciprocating screw rod, an electromagnetic coil, a heat conduction cylinder, a water inlet groove and a sliding groove. Water pipes are fixedly arranged on the two sides of the roller body, a plurality of limiting grooves are formed in the roller body, and a plurality of limiting blocks are fixedly arranged outside the heat conduction cylinder. During use, the roller body rotates to drive the reciprocating screw rod in the roller body to rotate, so that the movable block reciprocates outside the roller body, and the movement of the movable block drives the sliding block to reciprocate in the sliding groove formed in the heat conduction cylinder, so that the sliding block pushes the heat conduction ball to move in the sliding groove, and the outside of the roller body is uniformly heated; water flows into the water inlet tank through the water pipe and then flows out through the water pipe, and cooling operation is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic heating rollers, in particular to an electromagnetic heating roller with uniform heating. Background Art

[0002] An electromagnetic heating roller is a heating device made based on the principle of electromagnetic induction heating of metals. By generating eddy currents inside the metal roller, the metal roller itself can quickly heat up, and then heat and process the processing materials, thereby improving the heating efficiency and product quality. This unique heating method improves the heating efficiency and is crucial for many industrial applications that require precise temperature management. Whether it is the thermal pressing and compounding of plastic films, the surface calendering of textiles, or the drying and stretching and shaping of special papers, the electromagnetic heating roller can provide an ideal heating solution for these process procedures in an efficient, energy-saving, and environmentally friendly manner.

[0003] After most existing electromagnetic heating rollers are used for a long time, the non-uniformity of heat conduction distribution will gradually intensify. This non-uniformity not only damages the heating effect of the product but also directly affects the quality stability of the final product. Moreover, long-term high-load operation often leads to a large amount of heat accumulation inside the roller body, and the temperature continues to rise, which may affect the operation stability of the heating roller.

[0004] Therefore, those skilled in the art have provided an electromagnetic heating roller with uniform heating to solve the problems raised in the above background art. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the deficiencies existing in the prior art, and an electromagnetic heating roller with uniform heating is proposed. By the movement of the slider, the heat-conducting ball is pushed to move inside the chute, thereby making the heating outside the roller body uniform.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] An electromagnetic heating roller with uniform heating, including a roller body. A uniform heating mechanism is arranged inside the roller body. The uniform heating mechanism includes a moving block, a slider, a plurality of heat-conducting balls, a reciprocating lead screw, an electromagnetic coil, a heat-conducting cylinder, a water inlet groove, and a chute. Water pipes are fixedly arranged on both sides of the roller body. A plurality of limiting grooves are opened inside the roller body. A plurality of limiting blocks are fixedly arranged outside the heat-conducting cylinder.

[0008] Furthermore, the moving block is internally threadedly connected to the outside of the reciprocating lead screw. The lower end of the slider is fixedly arranged on the upper end of the moving block. The outside of the chute is opened inside the heat-conducting cylinder. The outside of the slider is slidably arranged inside the chute.

[0009] Further, the external part of the reciprocating lead screw is fixedly arranged inside the heat conduction cylinder, and the external part of the electromagnetic coil is fixedly arranged inside the reciprocating lead screw.

[0010] Further, the external parts of multiple heat conduction balls are all slidably arranged inside the sliding grooves, and the external part of the heat conduction cylinder is slidably arranged inside the roller body.

[0011] Further, the external parts of multiple limiting blocks are respectively slidably arranged inside multiple limiting grooves, and the external part of the water inlet groove is opened inside the reciprocating lead screw.

[0012] Further, a temperature sensor is fixedly arranged inside the reciprocating lead screw, and sealing rings are fixedly arranged on both sides of the heat conduction cylinder.

[0013] Further, covers are fixedly arranged on both sides of the roller body, rotating shafts are fixedly arranged on the opposite sides of the two covers, and a slip ring is fixedly arranged on the outside of one of the two rotating shafts.

[0014] The utility model has the following beneficial effects:

[0015] 1. For an electromagnetic heating roller with uniform heating proposed by the utility model, when the electromagnetic coil is electrified, heat will be rapidly generated inside the roller body. As the roller body rotates, the heat conduction cylinder and the reciprocating lead screw inside it will rotate synchronously. The rotation of the reciprocating lead screw will drive the external moving block to perform reciprocating motion. The movement of the moving block will drive the slider to slide in the sliding groove inside the heat conduction cylinder, and the sliding of the slider will simultaneously push multiple heat conduction balls to perform reciprocating motion in the sliding groove, so that the heat carried by the heat conduction balls is evenly distributed inside the roller body, effectively avoiding the problems of heat accumulation and uneven temperature, improving the uniformity of the heating process, making the temperature inside the entire roller body consistent, and thus ensuring product quality.

[0016] 2. For an electromagnetic heating roller with uniform heating proposed by the utility model, when the temperature inside the roller body exceeds the preset safety range, the cooling water passing through the water pipe is guided into the water inlet groove inside the reciprocating lead screw. The cooling water will come into contact with the inside of the reciprocating lead screw, and then, through the heat exchange process, effectively absorb and take away the excess heat, thereby realizing the rapid cooling of the roller body. As the cooling water continues to be injected, the water volume inside the water inlet groove will gradually accumulate and will eventually flow out through another water pipe, thus forming a circulating cooling circuit, which not only reduces the temperature of the roller body to within the safety range, but also improves the operating stability of the roller body. Description of the Drawings

[0017] Figure 1 is an axonometric schematic diagram of the utility model;

[0018] Figure 2 is a front sectional axonometric schematic diagram of the heat conduction cylinder of the utility model;

[0019] Figure 3 Isometric schematic diagram of the front cross-section of the side view of the present utility model;

[0020] Figure 4 Isometric schematic diagram of the front cross-section of the front view of the present utility model;

[0021] Figure 5 Isometric schematic diagram of the side cross-section of the present utility model;

[0022] Figure 6 Isometric schematic diagram of the chute of the present utility model.

[0023] Legend:

[0024] 1. Roller body; 2. Sealing cover; 3. Slip ring; 4. Rotating shaft; 5. Water pipe; 6. Uniform heating mechanism; 7. Sealing ring; 8. Temperature sensor; 9. Limiting groove; 10. Limiting block; 601. Moving block; 602. Slide block; 603. Heat-conducting ball; 604. Reciprocating lead screw; 605. Electromagnetic coil; 606. Heat-conducting cylinder; 607. Water inlet groove; 608. Chute. Specific implementation mode

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0026] Refer to Figure 1 、 Figure 2 and Figure 5 A kind of embodiment provided by the present utility model:

[0027] An electromagnetic heating roller with uniform heating, comprising a roller body 1, a uniform heating mechanism 6 is arranged inside the roller body 1, the uniform heating mechanism 6 includes a moving block 601, a slide block 602, a plurality of heat-conducting balls 603, a reciprocating lead screw 604, an electromagnetic coil 605, a heat-conducting cylinder 606, a water inlet groove 607 and a chute 608, water pipes 5 are fixedly arranged on both sides of the roller body 1, a plurality of limiting grooves 9 are opened inside the roller body 1, a plurality of limiting blocks 10 are fixedly arranged outside the heat-conducting cylinder 606, and the outer parts of the plurality of limiting blocks 10 are respectively slidably arranged inside the plurality of limiting grooves 9, sealing covers 2 are fixedly arranged on both sides of the roller body 1, rotating shafts 4 are fixedly arranged on the opposite sides of the two sealing covers 2, a slip ring 3 is fixedly arranged on the outside of one of the two rotating shafts 4, and a temperature sensor 8 is fixedly arranged inside the reciprocating lead screw 604;

[0028] Specifically, during the installation of the heat conduction cylinder 606, by precisely aligning the limit block 10 outside the heat conduction cylinder 606 with the limit groove 9 inside the roller body 1, when the alignment is successful, the heat conduction cylinder 606 can smoothly slide into the inside of the roller body 1. The limit block 10 and the limit groove 9 ensure that the heat conduction cylinder 606 does not shift during the heating process, guaranteeing the stability of heating. Subsequently, by firmly locking the cover 2 to both sides of the roller body 1, the stability of the heat conduction cylinder 606 inside the roller body 1 is ensured. Finally, the rotating shaft 4 is installed at the required position. When the roller body 1 starts to operate, the temperature sensor 8 inside the reciprocating lead screw 604 will monitor the temperature change in real time. If the detected temperature is too high, the cooling water will flow into the water inlet groove 607 inside the reciprocating lead screw 604 through the water pipe 5 to reduce its temperature. As the cooling water continues to flow, these heated cooling waters will be pushed by the newly injected cooling water and discharged through another water pipe 5, forming a closed-loop circulation system, enabling the roller body 1 to remain stable during high-speed operation, thereby ensuring that the heating roller does not overheat, maintaining the temperature stability of the roller body 1 during long-term operation, and thus extending the service life of the electromagnetic heating roller. The slip ring 3 enables the electromagnetic coil 605 to continuously obtain power supply during the rotation of the heating roller.

[0029] Refer to Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 , The inside of the moving block 601 is threadedly connected to the outside of the reciprocating lead screw 604. The lower end of the slider 602 is fixedly arranged at the upper end of the moving block 601. The outside of the chute 608 is opened inside the heat conduction cylinder 606. The outside of the slider 602 is slidably arranged inside the chute 608. The outside of the reciprocating lead screw 604 is fixedly arranged inside the heat conduction cylinder 606. The outside of the electromagnetic coil 605 is fixedly arranged inside the reciprocating lead screw 604. The outside of multiple heat conduction balls 603 are all slidably arranged inside the chute 608. The outside of the heat conduction cylinder 606 is slidably arranged inside the roller body 1. The outside of the water inlet groove 607 is opened inside the reciprocating lead screw 604. Sealing rings 7 are fixedly arranged on both sides of the heat conduction cylinder 606;

[0030] Specifically, when the roller body 1 is running, it will drive the synchronous rotation of the heat-conducting cylinder 606 inside it. The rotation of the heat-conducting cylinder 606 will drive the reciprocating lead screw 604 fixedly connected to it. After the electromagnetic coil 605 inside the reciprocating lead screw 604 is energized, an alternating magnetic field will be generated inside the reciprocating lead screw 604. This alternating magnetic field will induce eddy currents in the heat-conducting cylinder 606 and the heat-conducting balls 603. When the eddy currents flow inside the metal components, heat is generated due to the resistance, thus realizing non-contact heating. Since the inside of the moving block 601 is threadedly connected to the outside of the reciprocating lead screw 604, the rotation of the reciprocating lead screw 604 will drive the moving block 601 to perform reciprocating motion outside it. Furthermore, the moving block 601 will drive the slider 602 at its upper end to slide in the chute 608 opened inside the heat-conducting cylinder 606. The sliding of the slider 602 will push the heat-conducting balls 603 inside the chute 608, causing them to slide reciprocally inside the chute 608. The reciprocating motion of the heat-conducting balls 603 will make the heat more evenly distributed inside and around the heat-conducting cylinder 606. Through the reciprocating movement of the heat-conducting balls 603, the uniform conduction of heat inside the roller body 1 is realized, avoiding hot spots and cold spots that may occur in the traditional heating method. And the sealing rings 7 on both sides of the heat-conducting cylinder 606 ensure the tightness at the junction of the heat-conducting cylinder 606 and the roller body 1, preventing heat dissipation and the entry of external pollutants.

[0031] Working principle: When the electromagnetic coil 605 is energized, heat will be generated inside the roller body 1. The rotation of the roller body 1 will drive the synchronous rotation of the heat-conducting cylinder 606 and the reciprocating lead screw 604 inside it. The rotation of the reciprocating lead screw 604 will drive the moving block 601 to reciprocate outside it. Since the moving block 601 is fixedly connected to the slider 602, the slider 602 will also slide in the chute 608 opened inside the heat-conducting cylinder 606. The sliding of the slider 602 will push multiple heat-conducting balls 603 to reciprocate inside the chute 608, making the heat of the heat-conducting balls 603 more evenly distributed inside and around the heat-conducting cylinder 606, improving the uniformity of heating.

[0032] Secondly, when the temperature inside the roller body 1 is too high, the cooling water is guided through the water pipe 5 to the water inlet groove 607 inside the reciprocating lead screw 604, so that the cooling water inside the water inlet groove 607 effectively cools the inside of the roller body 1. As the cooling water continues to be injected, the water volume inside the water inlet groove 607 continuously increases. After the heat exchange, the water will be orderly discharged through another water pipe 5, forming a closed circulating cooling circuit, thereby ensuring that the roller body 1 is maintained within a safe and stable temperature range during the heating process.

[0033] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An electromagnetic heating roller with uniform heating, comprising a roller body (1), characterized in that: A uniform heating mechanism (6) is arranged inside the roller body (1), and the uniform heating mechanism (6) comprises a moving block (601), a sliding block (602), a plurality of heat-conducting balls (603), a reciprocating screw (604), an electromagnetic coil (605), a heat-conducting cylinder (606), a water inlet groove (607) and a slide groove (608). Water pipes (5) are fixedly arranged on both sides of the roller body (1), a plurality of limiting grooves (9) are opened inside the roller body (1), and a plurality of limiting blocks (10) are fixedly arranged outside the heat-conducting cylinder (606).

2. The electromagnetic heating roller with uniform heating according to claim 1, characterized in that: The internal thread of the moving block (601) is connected to the outside of the reciprocating screw rod (604), the lower end of the slider (602) is fixedly arranged on the upper end of the moving block (601), the outside of the slide groove (608) is opened inside the heat-conducting tube (606), and the outside of the slider (602) is slidably arranged inside the slide groove (608).

3. The electromagnetic heating roller with uniform heating according to claim 1, characterized in that: The reciprocating screw rod (604) is externally fixedly disposed inside the heat-conducting cylinder (606), and the electromagnetic coil (605) is externally fixedly disposed inside the reciprocating screw rod (604).

4. The electromagnetic heating roller with uniform heating according to claim 1, characterized in that: The exterior of the plurality of heat-conducting balls (603) are all slidably disposed inside the slide groove (608), and the exterior of the heat-conducting cylinder (606) is slidably disposed inside the roller body (1).

5. The electromagnetic heating roller with uniform heating according to claim 1, characterized in that: The exterior of the plurality of limit blocks (10) are slidably disposed inside the plurality of limit grooves (9), respectively, and the exterior of the water inlet groove (607) is opened inside the reciprocating screw rod (604).

6. The electromagnetic heating roller with uniform heating according to claim 1, characterized in that: A temperature sensor (8) is fixedly arranged inside the reciprocating screw rod (604), and sealing rings (7) are fixedly arranged on both sides of the heat-conducting tube (606).

7. The electromagnetic heating roller with uniform heating according to claim 1, characterized in that: Covers (2) are fixedly arranged on both sides of the roller body (1), rotating shafts (4) are fixedly arranged on opposite sides of the two covers (2), and a collector ring (3) is fixedly arranged on the outside of one of the two rotating shafts (4).

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