Heating control device of electromagnetic induction heating roller

Abstract

The invention relates to the technical field of heating rollers, and discloses a heating control device of an electromagnetic induction heating roller, which comprises an electromagnetic heating roller main body, the two ends of the electromagnetic heating roller main body are rotatably connected with connecting assemblies, and the connecting assembly at the left end of the electromagnetic heating roller main body is connected with a left side end plate; and a right side end plate is connected to the connecting assembly located at the right end of the electromagnetic heating roller body, a connecting rod is arranged at the upper end between the left side end plate and the right side end plate, and a plurality of temperature sensors distributed at equal intervals are fixedly connected to the bottom of the connecting rod. According to the heating control device of the electromagnetic induction heating roller, the plurality of temperature sensors attached to the electromagnetic heating roller body are arranged on the connecting rod, so that multi-point temperature detection is carried out on the outer side of the electromagnetic heating roller body, comprehensive coverage can be ensured, and whether heating is uniform or not can be accurately evaluated; and meanwhile, when the temperature cannot reach a preset value or is inconsistent, an operator can find the temperature in time to carry out adjustment and control.

Description

Technical Field

[0001] The invention relates to the technical field of heating rollers, in particular to a heating control device for an electromagnetic induction heating roller. Background Art

[0002] The heating process of the electromagnetic heating roller is based on the principle of electromagnetic induction. When alternating current passes through the induction coil, an alternating magnetic field is generated around it. The magnetic lines of force form a loop from one magnetic pole through the heated object (usually a metal roller body) to the other magnetic pole. The magnetic lines of force cut the material and generate an induced electromotive force in it, thereby generating eddy currents. Since the heated object has resistance characteristics, according to Joule-Lenz's law, the eddy currents will cause the material to heat up and achieve a heating effect.

[0003] For example, the patent with the patent authorization announcement number CN111315059B discloses an electromagnetic heating roller, including a roller, a core tube is arranged inside the roller, a main coil is wound on the outer wall of the core tube along the axis of the roller, a compensation coil is arranged inside the core tube and can move along the axis, the compensation coil is coaxial with the main coil, and the compensation coil is connected to the frequency conversion controller outside the roller. This electromagnetic heating roller makes the roller temperature uniform through the compensation coil and the low melting point alloy interlayer; the cooling efficiency of the main coil is improved through the special cooling water flow channel.

[0004] The electromagnetic heating roller in the above patent still has certain defects: At present, electromagnetic heating rollers generally rely on the monitoring of a single temperature sensor for temperature detection. However, the detection range of this single sensor is relatively limited, and it is difficult to fully and accurately reflect the actual temperature conditions of the entire electromagnetic heating roller. This limitation not only weakens the representativeness of temperature data, but also greatly hinders the operator's precise control of the heating process of the electromagnetic heating roller. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a heating control device for an electromagnetic induction heating roller, which performs multi-point temperature detection on the electromagnetic heating roller body through multiple temperature sensors, so that the electromagnetic heating roller body can be more accurately controlled during the heating process.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a heating control device for an electromagnetic induction heating roller, comprising an electromagnetic heating roller main body, both ends of the electromagnetic heating roller main body are rotatably connected with a connecting component, the connecting component located at the left end of the electromagnetic heating roller main body is connected to a left end plate, and the connecting component located at the right end of the electromagnetic heating roller main body is connected to a right end plate, a connecting rod is provided at the upper end between the left end plate and the right end plate, a plurality of equidistantly distributed temperature sensors are fixedly connected to the bottom of the connecting rod, the temperature sensors are in contact with the outer wall of the electromagnetic heating roller main body, and a protective component is fixedly connected to the side of the right end plate close to the left end plate.

[0007] Furthermore, the connecting assembly includes a limit ring, a connecting plate, a positioning column, an elastic member, a slider and a block. Both ends of the electromagnetic heating roller body are provided with annular grooves matching the limit rings. The limit ring is located inside the annular groove, and the limit ring is rotatably connected to the electromagnetic heating roller body. The inner wall of the connecting plate is fixedly connected to the outer wall of the limit ring. The connecting plate is provided with a plurality of equally distributed receiving grooves. The receiving groove is provided with a slide groove connected thereto. The slide groove is slidably connected with a slider. The middle position of the slider is slidably connected with a positioning column. The two ends of the positioning column are respectively fixedly connected to the top and bottom of the slide groove. The lower end of the positioning column is sleeved with an elastic member. A block matching the receiving groove is fixedly connected to the side of the slider away from the connecting plate. A slot matching the block is provided on the side of the right end plate and the left end plate away from the electromagnetic heating roller body.

[0008] Furthermore, an anti-slip plate is fixedly connected to one side of the connecting plate close to the center of the electromagnetic heating roller body, and anti-slip grooves matching the anti-slip plate are provided on the sides of the right end plate and the left end plate away from the center of the electromagnetic heating roller body.

[0009] Furthermore, a gripping block is fixedly connected to a side of the clamping block away from the connecting plate.

[0010] Furthermore, the protective assembly includes a folding protective cover, a guide block and a connecting ring. A guide groove is provided on the top of the connecting rod, and a guide block is slidably connected to the inside of the guide groove. The connecting ring is sleeved on the outside of the electromagnetic heating roller body, and the top of the guide block is fixedly connected to the connecting ring. A folding protective cover is provided between the connecting ring and the right end plate, one end of the folding protective cover is fixedly connected to the right end plate, and the other end of the folding protective cover is fixedly connected to the connecting ring.

[0011] Furthermore, a rotating groove is provided on the side of the connecting ring away from the right end plate, a rotating ring is rotatably connected inside the rotating groove, a movable threaded ring is fixedly connected to the side of the rotating ring away from the right end plate, a fixed threaded ring is fixedly connected to the side of the left end plate close to the right end plate, a sealing gasket is fixedly connected to the side of the fixed threaded ring close to the right end plate, and the movable threaded ring is threadedly connected to the fixed threaded ring.

[0012] Furthermore, a water collecting bucket is fixedly connected to the bottom of the foldable protective cover, a drain pipe is fixedly connected to the lower end of the right end plate away from one end of the left end plate, the drain pipe is connected to the water collecting bucket, a water distribution pipe is fixedly connected to the top of the inner side of the foldable protective cover, a water inlet pipe connected to the top of the water distribution pipe is fixedly connected, an overflow groove is provided on one side of the water distribution pipe, and drainage holes connected to the guide groove are provided at both ends of the connecting rod.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The heating control device of this electromagnetic induction heating roller is provided with a plurality of temperature sensors on the connecting rod which are in contact with the main body of the electromagnetic heating roller, so as to perform multi-point temperature detection on the outer side of the main body of the electromagnetic heating roller, thereby ensuring full coverage and accurately evaluating whether the heating is uniform. At the same time, when the temperature does not reach the preset value or the temperature is inconsistent, the operator can timely discover and adjust the control.

[0014] 2. The heating control device of the electromagnetic induction heating roller can cover the folding protective cover on the outside of the electromagnetic heating roller body during transportation or shutdown, so as to protect the electromagnetic heating roller body and prevent the roller surface of the electromagnetic heating roller body from being damaged due to collision and other reasons.

[0015] 3. In the heating control device of the electromagnetic induction heating roller, both the left end plate and the right end plate are connected to the electromagnetic heating roller body through a connecting component, which makes it easier and more convenient to disassemble and maintain the left end plate or the right end plate when necessary. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 A partial cross-sectional view of the foldable protective cover of the present invention; Figure 3 For the present invention Figure 2 A schematic diagram of the local enlarged structure at point A in the middle; Figure 4 A partial cross-sectional view of the present invention as a whole; Figure 5 For the present invention Figure 4 A schematic diagram of the local enlarged structure at B in the middle; Figure 6 It is a schematic diagram of the connection structure of the electromagnetic heating roller body and the left end plate and the right end plate of the present invention; Figure 7 It is a partial cross-sectional view of the left end plate and the connecting plate of the present invention; Figure 8 For the present invention Figure 7 A schematic diagram of the local enlarged structure at C in the middle; Fig. 9 It is a structural schematic diagram of the left end plate of the present invention from another perspective; Fig.10 The figure is a schematic diagram of the connection structure of the connecting rod, the connecting ring and the movable threaded ring of the present invention.

[0017] In the figure: 1. electromagnetic heating roller body; 2. annular groove; 3. limiting ring; 4. connecting plate; 5. storage groove; 6. slide groove; 7. positioning column; 8. elastic member; 9. slider; 10. clamping block; 11. gripping block; 12. left end plate; 13. right end plate; 14. clamping groove; 15. anti-slip groove; 16. anti-slip plate; 17. drainage pipe; 18. folding protective cover; 19. water collecting bucket; 20. connecting rod; 21. temperature sensor; 22. guide groove; 23. drainage hole; 24. guide block; 25. connecting ring; 26. rotating groove; 27. rotating ring; 28. movable threaded ring; 29. ​​fixed threaded ring; 30. sealing gasket; 31. water distribution pipe; 32. overflow notch; 33. water inlet pipe. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] See also Figures 1 to 10 A heating control device for an electromagnetic induction heating roller comprises an electromagnetic heating roller body 1, both ends of the electromagnetic heating roller body 1 are rotatably connected with a connecting assembly, a left end plate 12 is connected to the connecting assembly located at the left end of the electromagnetic heating roller body 1, and a right end plate 13 is connected to the connecting assembly located at the right end of the electromagnetic heating roller body 1, a connecting rod 20 is provided at the upper end between the left end plate 12 and the right end plate 13, a plurality of equidistantly distributed temperature sensors 21 are fixedly connected to the bottom of the connecting rod 20, the temperature sensors 21 are in contact with the outer wall of the electromagnetic heating roller body 1, and a protective assembly is fixedly connected to the side of the right end plate 13 close to the left end plate 12.

[0020] In the heating control device of the electromagnetic induction heating roller of the present invention, a plurality of temperature sensors 21 in contact with the roller surface of the electromagnetic heating roller body 1 are arranged at the bottom of the connecting rod 20, so as to perform multi-point temperature detection on the outer side of the electromagnetic heating roller body 1, so as to more accurately evaluate whether the heating is uniform, and when the temperature does not reach the predetermined value or the temperature is inconsistent, the operator can also timely discover and adjust and control according to the evaluation result. The above structure makes the heating control of the electromagnetic heating roller body 1 simpler and more convenient. At the same time, the protective component can also protect the roller surface of the electromagnetic heating roller body 1 during equipment transportation or shutdown to prevent sharp objects from scratching the roller surface (the roller surface is also called the mirror surface) of the electromagnetic heating roller body 1. In addition, the structure of the electromagnetic heating roller body 1 in the present invention is similar to the prior art, and a kind of electromagnetic heating roller structure disclosed in the patent with patent authorization announcement number CN111315059B, so it will not be elaborated in detail here.

[0021] As a preferred technical solution of the present invention, the connecting component includes a limit ring 3, a connecting plate 4, a positioning column 7, an elastic member 8, a slider 9 and a block 10. Both ends of the electromagnetic heating roller body 1 are provided with annular grooves 2 matching the limit ring 3. The limit ring 3 is located inside the annular groove 2, and the limit ring 3 is rotatably connected to the electromagnetic heating roller body 1. The inner wall of the connecting plate 4 is fixedly connected to the outer wall of the limit ring 3. A plurality of equally distributed receiving grooves 5 are provided on the connecting plate 4. A slide groove 6 connected thereto is provided inside the receiving groove 5. A slider 9 is slidably connected inside the slide groove 6. A positioning column 7 is slidably connected to the middle position of the slide groove 9. Both ends of the positioning column 7 are respectively fixedly connected to the top and bottom of the slide groove 6. The lower end of the positioning column 7 is sleeved with an elastic member 8. A block 10 matching the receiving groove 5 is fixedly connected to the side of the slider 9 away from the connecting plate 4. A slot 14 matching the block 10 is provided on the side of the right end plate 13 and the left end plate 12 away from the electromagnetic heating roller body 1.

[0022] As a preferred technical solution of the present invention, an anti-slip plate 16 is fixedly connected to one side of the connecting plate 4 close to the center position of the electromagnetic heating roller body 1, and an anti-slip groove 15 matching the anti-slip plate 16 is provided on the side of the right end plate 13 and the left end plate 12 away from the center position of the electromagnetic heating roller body 1.

[0023] Specifically, before installing the left end plate 12 (or the right end plate 13), first push the block 10 so that the block 10 is completely in the storage slot 5, and then align the anti-slip groove 15 of the left end plate 12 with the anti-slip plate 16, then move the left end plate 12 to make the anti-slip plate 16 enter the anti-slip groove 15, and then release the block 10. The elastic member 8 loses its restriction and pushes the slider 9 to move in the direction of the slot 14, and the slider 9 will drive the block 10 to move in the direction of the slot 14, and then the block 10 is inserted into the slot 14, so that the installation of the left end plate 12 (or the right end plate 13) can be completed; and when disassembling the left end plate 12 (or the right end plate 13), you only need to push the block 10 first to make the block 10 disengage from the slot 14, and then you can remove the left end plate 12 (or the right end plate 13) from the connecting plate 4.

[0024] As a preferred technical solution of the present invention, a gripping block 11 is fixedly connected to one side of the clamping block 10 away from the connecting plate 4. The gripping block 11 makes it easier to move the clamping block 10 and saves effort.

[0025] As a preferred technical solution of the present invention, the protective assembly includes a folding protective cover 18, a guide block 24 and a connecting ring 25. A guide groove 22 is provided at the top of the connecting rod 20, and the guide block 24 is slidably connected inside the guide groove 22. The connecting ring 25 is sleeved on the outside of the electromagnetic heating roller body 1, and the top of the guide block 24 is fixedly connected to the connecting ring 25. A folding protective cover 18 is provided between the connecting ring 25 and the right end plate 13, one end of the folding protective cover 18 is fixedly connected to the right end plate 13, and the other end of the folding protective cover 18 is fixedly connected to the connecting ring 25.

[0026] Specifically, during the transportation or shutdown of the electromagnetic heating roller body 1, the connecting ring 25 can be pushed, and the connecting ring 25 will drive the folding protective cover 18 to move, so that the folding protective cover 18 is covered on the outside of the electromagnetic heating roller body 1, thereby protecting the mirror surface of the electromagnetic heating roller body 1 and preventing the mirror surface of the electromagnetic heating roller body 1 from being damaged due to collision and the like.

[0027] As a preferred technical solution of the present invention, a rotating groove 26 is opened on the side of the connecting ring 25 away from the right end plate 13, and a rotating ring 27 is rotatably connected inside the rotating groove 26. A movable threaded ring 28 is fixedly connected to the side of the rotating ring 27 away from the right end plate 13, a fixed threaded ring 29 is fixedly connected to the side of the left end plate 12 close to the right end plate 13, a sealing gasket 30 is fixedly connected to the side of the fixed threaded ring 29 close to the right end plate 13, and the movable threaded ring 28 is threadedly connected to the fixed threaded ring 29.

[0028] Specifically, when the connecting ring 25 is pushed to one side of the left end plate 12, the movable threaded ring 28 will contact the fixed threaded ring 29. The movable threaded ring 28 is rotated to make the movable threaded ring 28 and the fixed threaded ring 29 threadably connected, so as to restrict the folding protective cover 18 and prevent the folding protective cover 18 from returning to its original position by itself.

[0029] As a preferred technical solution of the present invention, a water collecting bucket 19 is fixedly connected to the bottom of the folding protective cover 18, a drain pipe 17 is fixedly connected to the lower end of the right end plate 13 away from the left end plate 12, the drain pipe 17 is connected to the water collecting bucket 19, a water distribution pipe 31 is fixedly connected to the top of the inner side of the folding protective cover 18, a water inlet pipe 33 connected thereto is fixedly connected to the top of the water distribution pipe 31, an overflow groove 32 is provided on one side of the water distribution pipe 31, and drainage holes 23 connected to the guide groove 22 are provided at both ends of the connecting rod 20.

[0030] Specifically, when the electromagnetic heating roller body 1 needs to be flushed, the foldable protective cover 18 can be put on the outside of the electromagnetic heating roller body 1, and then the cleaning liquid or clean water is input into the water distribution pipe 31 through the water inlet pipe 33. The cleaning liquid or clean water will flow out through the overflow groove 32 and be poured on the electromagnetic heating roller body 1. At the same time, the electromagnetic heating roller body 1 is rotated to flush the electromagnetic heating roller body 1, and the waste liquid generated during flushing will be collected by the water collecting bucket 19 and discharged from the drain pipe 17. The above flushing method is simpler, more convenient, and easy to operate, and it is not easy for water stains to splash onto other equipment during cleaning.

[0031] It is worth noting that the left end plate 12, the right end plate 13 and the connecting rod 20 do not rotate together with the electromagnetic heating roller body 1 (they can be fixedly connected to the bracket for installing the electromagnetic heating roller body 1), so the multiple temperature sensors 21 located on the connecting rod 20 can perform comprehensive detection of the electromagnetic heating roller body 1. In addition, since the temperature sensor 21 is an existing mature product, it will not be elaborated on here.

[0032] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A heating control device for an electromagnetic induction heating roller, comprising an electromagnetic heating roller body (1), characterized in that: Both ends of the electromagnetic heating roller body (1) are rotatably connected with connection components, the connection component located at the left end of the electromagnetic heating roller body (1) is connected to a left end plate (12), and the connection component located at the right end of the electromagnetic heating roller body (1) is connected to a right end plate (13), a connection rod (20) is provided at the upper end between the left end plate (12) and the right end plate (13), a plurality of equidistantly distributed temperature sensors (21) are fixedly connected to the bottom of the connection rod (20), the temperature sensors (21) are in contact with the outer wall of the electromagnetic heating roller body (1), and a protective component is fixedly connected to the side of the right end plate (13) close to the left end plate (12).

2. The heating control device for an electromagnetic induction heating roller according to claim 1, characterized in that: The connection assembly comprises a limit ring (3), a connection plate (4), a positioning column (7), an elastic member (8), a slider (9) and a clamping block (10); both ends of the electromagnetic heating roller body (1) are provided with an annular groove (2) matching the limit ring (3); the limit ring (3) is located inside the annular groove (2); the limit ring (3) is rotatably connected to the electromagnetic heating roller body (1); the inner wall of the connection plate (4) is fixedly connected to the outer wall of the limit ring (3); a plurality of equally spaced receiving grooves (5) are provided on the connection plate (4); and the receiving grooves (5) are provided inside with corresponding receiving grooves. A slide groove (6) is connected to each other, a slider (9) is slidably connected in the slide groove (6), a positioning column (7) is slidably connected in the middle position of the slider (9), two ends of the positioning column (7) are respectively fixedly connected to the top and bottom of the slide groove (6), an elastic member (8) is sleeved on the lower end of the positioning column (7), a block (10) matching the storage groove (5) is fixedly connected to the side of the slider (9) away from the connecting plate (4), and a slot (14) matching the block (10) is provided on the side of the right end plate (13) and the left end plate (12) away from the electromagnetic heating roller body (1).

3. The heating control device for an electromagnetic induction heating roller according to claim 2, characterized in that: An anti-slip plate (16) is fixedly connected to one side of the connecting plate (4) close to the center of the electromagnetic heating roller body (1), and an anti-slip groove (15) matching the anti-slip plate (16) is provided on the side of the right end plate (13) and the left end plate (12) away from the center of the electromagnetic heating roller body (1).

4. The heating control device for an electromagnetic induction heating roller according to claim 2, characterized in that: A gripping block (11) is fixedly connected to a side of the clamping block (10) away from the connecting plate (4).

5. The heating control device for an electromagnetic induction heating roller according to claim 1, characterized in that: The protective assembly comprises a foldable protective cover (18), a guide block (24) and a connecting ring (25); a guide groove (22) is provided at the top of the connecting rod (20); the guide groove (22) is slidably connected to the guide block (24); the connecting ring (25) is sleeved on the outside of the electromagnetic heating roller body (1); the top of the guide block (24) is fixedly connected to the connecting ring (25); a foldable protective cover (18) is provided between the connecting ring (25) and the right end plate (13); one end of the foldable protective cover (18) is fixedly connected to the right end plate (13); and the other end of the foldable protective cover (18) is fixedly connected to the connecting ring (25).

6. The heating control device for an electromagnetic induction heating roller according to claim 5, characterized in that: A rotation groove (26) is formed on a side of the connecting ring (25) away from the right end plate (13); a rotation ring (27) is rotatably connected inside the rotation groove (26); a movable threaded ring (28) is fixedly connected to a side of the rotation ring (27) away from the right end plate (13); a fixed threaded ring (29) is fixedly connected to a side of the left end plate (12) close to the right end plate (13); a sealing gasket (30) is fixedly connected to a side of the fixed threaded ring (29) close to the right end plate (13); and the movable threaded ring (28) is threadedly connected to the fixed threaded ring (29).

7. The heating control device for an electromagnetic induction heating roller according to claim 6, characterized in that: A water collecting bucket (19) is fixedly connected to the bottom of the foldable protective cover (18); a drainage pipe (17) is fixedly connected to the lower end of the right end plate (13) away from the left end plate (12); the drainage pipe (17) is connected to the water collecting bucket (19); a water distribution pipe (31) is fixedly connected to the top of the inner side of the foldable protective cover (18); a water inlet pipe (33) connected to the top of the water distribution pipe (31); an overflow groove (32) is provided on one side of the water distribution pipe (31); and drainage holes (23) connected to the guide groove (22) are provided at both ends of the connecting rod (20).

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