CN214562742U

CN214562742U - Novel electromagnetic heating device

Info

Publication number: CN214562742U
Application number: CN202120733214.5U
Authority: CN
Inventors: 寻尚伦
Original assignee: Shenzhen Suneng Energy Saving Equipment Co ltd
Current assignee: Shenzhen Suneng Energy Saving Equipment Co ltd
Priority date: 2021-04-10
Filing date: 2021-04-10
Publication date: 2021-11-02
Anticipated expiration: 2031-04-10

Abstract

The utility model relates to a mould heating technology field. The utility model provides a novel electromagnetic heating device, including lower insulation board, go up the insulation board, lower mould and last mould, the lower mould sets up in the upper surface of lower insulation board, go up the mould and set up in the lower surface of last insulation board, the upper surface left and right sides of lower insulation board all fixes and is equipped with the reference column, it slides and sets up on the post wall of two reference columns to go up the insulation board, the heating groove has been seted up to the preceding lateral wall of lower insulation board and last insulation board, the inside of heating groove is provided with solenoid, the opening part of heating groove is provided with the closing plate, be provided with on the closing plate and be used for the fixture fixed with solenoid. This novel electromagnetic heating device can guarantee that solenoid generates heat the heat that produces and concentrate effectual heating to the mould, and can change the solenoid of equidimension not according to the mould of equidimension not to can guarantee the heating effect to the mould, improve the quality of injection molding.

Description

Novel electromagnetic heating device

Technical Field

The utility model relates to a mould heating technology field specifically is a novel electromagnetic heating device.

Background

Electromagnetic heating mode has more high-efficient, energy-conserving advantage because it has for traditional conduction heating mode, and obtains more and more application in occasions such as fields such as industry, building, food, medical treatment, chemical industry, life gradually, the utility model discloses mainly relate to industrial field's mould heating technique.

The existing electromagnetic mold heating device is to fix an upper mold and a lower mold on an upper mold base and a lower mold base respectively, and fix electromagnetic coils between the upper mold base and the upper mold and between the lower mold base and the lower mold respectively, so that current carriers of the upper mold and the lower mold made of metal material move irregularly at high speed through a magnetic field generated by the electromagnetic coils, and the current carriers collide with atoms and rub to generate heat energy, thereby heating the molds in the upper mold and the lower mold. However, because the existing upper die holder and lower die holder are made of metal materials, under the action of the magnetic field of the electromagnetic coil, the existing upper die holder and lower die holder can also generate electromagnetic induction phenomena with certain amplitude and generate heat, and the heat is ineffective, so that a large amount of electric energy can be wasted, and the production cost is higher.

The die only carries out directional local induction heating on the surface of the die in an open electromagnetic induction heating mode, and the energy consumed for generating the same temperature by local electromagnetic induction heating is less than that consumed by overall electromagnetic induction heating. Therefore, the proper local die heating device can save a large amount of energy in the process of producing the workpiece by using the die, and the production cost is reduced.

When current adoption electromagnetic induction heating mode is to the mould heating, can not accomplish the mould heating with the heat that electromagnetic induction coil produced, cause thermal loss, and because the mould can change the mould of equidimension not as required injection molding's shape, consequently single electromagnetic heating coil can't guarantee to carry out effectual heating to the mould of equidimension not to the heating effect of mould has been reduced, finally leads to injection moulding's injection molding's quality to descend. Therefore, the utility model provides a novel electromagnetic heating device.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a novel electromagnetic heating device can guarantee that solenoid generates heat the heat that produces and concentrate effectual heating to the mould, has avoided thermal waste, and can change the solenoid of equidimension not according to the mould of equidimension not to can guarantee the heating effect to the mould, improve the advantage of the quality of injection molding, solve and adopt electromagnetic induction heating mode poor to the mould heating effect at present, cause the problem of thermal loss.

(II) technical scheme

In order to achieve the above object, the present invention provides the following technical solutions: the utility model provides a novel electromagnetic heating device, includes fixing base and last fixing base down, and is fixed in respectively lower mould and last mould on fixing base and last fixing base surface down, the fixing base is insulation board down, it is last insulation board to go up the fixing base, the lower mould sets up in the upper surface of insulation board down, go up the mould and set up in the lower surface of last insulation board, the upper surface left and right sides of insulation board is all fixed and is equipped with the reference column down, it slides and sets up in two to go up the insulation board on the post wall of reference column, it is fixed with solenoid to encapsulate respectively in insulation board and the last insulation board down, insulation board and last insulation board under the both ends of solenoid are worn out respectively to be connected to the control panel.

The utility model also provides a novel electromagnetic heating device, which comprises a lower fixed seat and an upper fixed seat, and a lower die and an upper die respectively fixed on the surfaces of the lower fixed seat and the upper fixed seat, wherein the lower fixed seat is a lower insulating plate, the upper fixed seat is an upper insulating plate, the lower die is arranged on the upper surface of the lower insulating plate, the upper die is arranged on the lower surface of the upper insulating plate, the left side and the right side of the upper surface of the lower insulating plate are both fixedly provided with positioning columns, the upper insulating plate is arranged on the column walls of the two positioning columns in a sliding manner, the front side walls of the lower insulating plate and the upper insulating plate are provided with heating grooves, electromagnetic coils are arranged inside the heating grooves, a sealing plate is arranged at the opening of the heating groove, a clamping mechanism for fixing the electromagnetic coil is arranged on the sealing plate, the lower insulation board and the upper insulation board are provided with limiting mechanisms for compressing the sealing board on the front side wall and the left side and the right side of the heating groove.

Preferably, the clamping mechanism comprises a bidirectional screw rod, a moving block, a connecting rod, a first arc-shaped clamping plate, a first bevel gear, a second bevel gear and a rotating shaft, the sealing plate is of a hollow structure, the bidirectional screw rod is transversely located in the sealing plate, a first rolling bearing is embedded in the left inner side wall and the right inner side wall of the sealing plate, the two ends of the bidirectional screw rod are rotatably connected with the left inner side wall and the right inner side wall of the sealing plate through the first rolling bearing, the moving block is in sliding connection with the inner side wall of the sealing plate in a bilateral symmetry mode, the side wall of the moving block is in threaded connection with the rod wall of the bidirectional screw rod through a first threaded hole and a second threaded hole respectively, the connecting rod is fixedly arranged on the two upper sides of the moving block, the two strip-shaped holes through which the connecting rod passes are arranged on the upper side of the sealing plate, the first arc-shaped clamping plate is fixedly arranged on the two connecting rod in one end, which the outside the sealing plate, in a symmetrical mode, and is arranged on the connecting rod Put, solenoid is located two between the first arc splint, first bevel gear is fixed to be set up in the pole wall middle part of two-way lead screw, the vertical below that is located two-way lead screw of pivot and the downside that the lower extreme passes through second antifriction bearing and closing plate rotate to be connected and fixed be equipped with the rocking handle, the upper end and the second bevel gear fixed connection of pivot, first bevel gear and second bevel gear meshing set up.

Preferably, fixture includes fixing base, sleeve, carriage release lever, spring and second arc splint, the fixing base is fixed to be set up in the upside of closing plate, the sleeve is bilateral symmetry and is fixed to be set up in the upside of closing plate and is located the both sides of fixing base respectively, the carriage release lever slides respectively and sets up in two telescopic inside, two the lower extreme of carriage release lever respectively with the upper end fixed connection of spring, two the lower extreme of spring respectively with two telescopic inner wall fixed connection, two the upper end of carriage release lever all extends to corresponding telescopic outside and all with second arc splint fixed connection, solenoid is located between fixing base and the second arc splint.

Preferably, the limiting mechanism comprises a one-way screw rod, a pressing plate and a threaded ring, the one-way screw rod is fixedly arranged on the front side walls of the lower insulating plate and the upper insulating plate respectively, the surface of the pressing plate is inserted into the rod wall of the one-way screw rod through an insertion hole, and the threaded ring is in threaded connection with the rod wall of the one-way screw rod and fastens and connects the pressing plate and the upper insulating plate.

Preferably, one side of the threaded ring, which is far away from the pressure plate, is fixedly provided with a manual ring, and the manual ring is movably sleeved with the rod wall of the one-way screw rod.

(III) advantageous effects

Compared with the prior art, novel electromagnetic heating device, possess following beneficial effect:

1. the utility model discloses because the upper and lower fixing base with current metal material adopts the insulation board to replace, and at the structure of the inside embedding heating coil of insulation board, avoided the energy loss that current fixing base generates heat in step and causes for the heating effect concentrates the high efficiency more, the effectual energy consumption that has saved reduces enterprise manufacturing cost.

2. This novel electromagnetic heating device through setting up two-way lead screw, movable block, connecting rod, first bevel gear, pivot, second bevel gear, rocking handle and the first arc splint on the closing plate, can carry out the centre gripping with the solenoid of equidimension not fixed.

3. This novel electromagnetic heating device through setting up sleeve, carriage release lever, spring and second arc splint on the closing plate, can carry out the centre gripping with the solenoid of equidimension not fixed.

4. This novel electromagnetic heating device through setting up one-way lead screw, pressure strip, screw ring and the manual ring that lateral wall just is located the heating tank both sides before last insulation board, can compress tightly the closing plate and fix the inside at the heating tank to can increase solenoid's fixed effect.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of a novel electromagnetic heating device provided by the present invention;

FIG. 2 is a cross-sectional structural view of FIG. 1;

fig. 3 is a schematic structural diagram of a second embodiment of the novel electromagnetic heating device provided by the present invention;

FIG. 4 is a cross-sectional structural view of FIG. 3;

FIG. 5 is a schematic top view of one embodiment of the solenoid coil and seal plate connection of the present invention;

FIG. 6 is a schematic top view of another embodiment of the solenoid coil and seal plate connection of the present invention;

fig. 7 is a schematic structural view of a stopper mechanism for fixing the sealing plate in fig. 3.

In the figure: the device comprises a lower insulating plate 1, a lower die 2, an upper insulating plate 3, an upper die 4, a positioning column 5, an electromagnetic coil 6, a sealing plate 7, a bidirectional screw rod 8, a moving block 9, a connecting rod 10, a first bevel gear 11, a rotating shaft 12, a second bevel gear 13, a rocking handle 14, a first arc-shaped clamping plate 15, a sleeve 16, a moving rod 17, a spring 18, a second arc-shaped clamping plate 19, a one-way screw rod 20, a pressing plate 21, a threaded ring 22, a manual ring 23, an insulating material layer 24 and a fixed seat 25.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The first embodiment is as follows:

the structure of the existing electromagnetic heating device is that the electromagnetic coil and the fixed seat are arranged in a separated mode, one side of the electromagnetic coil is fixed on the fixed seat, the other side of the electromagnetic coil fixes the mold, and during electromagnetic heating, the magnetic field generated by the electromagnetic coil enables the mold made of metal materials to generate electromagnetic oscillation and generate heat, so that objects contained in the mold are heated. However, at the same time, because the fixing seat on the other side of the electromagnetic coil is also made of metal, electromagnetic oscillation can be generated to generate heat, the heat can only be wasted, energy loss is generated, the service life of the machine is shortened, and the whole operation workshop is always in a high-temperature severe environment.

In order to solve the problem, the utility model provides a novel electromagnetic heating device, as shown in figures 1 and 2, the electromagnetic heating device comprises a lower fixing seat and an upper fixing seat, and a lower die and an upper die which are respectively fixed on the surfaces of the lower fixed seat and the upper fixed seat, wherein the lower fixed seat is a lower insulating plate 1, the upper fixed seat is an upper insulating plate 3, the lower die 2 is arranged on the upper surface of the lower insulating plate 1, the upper die 4 is arranged on the lower surface of the upper insulating plate 3, positioning columns 5 are fixedly arranged on the left side and the right side of the upper surface of the lower insulating plate 1, the upper insulating plate 3 is arranged on the column walls of the two positioning columns 5 in a sliding way, electromagnetic coils 6 are respectively packaged and fixed in the lower insulating plate 1 and the upper insulating plate 3, the two ends of the electromagnetic coil 6 respectively penetrate through the lower insulating plate 1 and the upper insulating plate 3 and are connected to a control board (not shown in the figure).

The utility model discloses the upper and lower fixing base with current metal material adopts the insulation board to replace, and at the structure of the inside embedding heating coil of insulation board, has avoided the energy loss that current fixing base generates heat in step and causes for the heating effect concentrates the high efficiency more, the effectual energy consumption that has saved reduces enterprise manufacturing cost.

Example two:

due to the different sizes of the dies, when the size of the die to be processed changes, the solenoid coil with the corresponding size also needs to be replaced to realize the most efficient heating. The electromagnetic heating device in the prior art can directly detach the heating plate (namely the electromagnetic coil) from the fixed seat to replace the electromagnetic coil with the corresponding size. In the electromagnetic heating device of the first embodiment, since the electromagnetic coil is embedded in the upper and lower insulating plates, the upper and lower insulating plates need to be completely removed and replaced, which also causes a problem of complicated operation,

for this purpose, the applicant has proposed another novel electromagnetic heating device, please refer to fig. 3, 4, 5 and 7, which includes a lower fixing seat and an upper fixing seat, and a lower die and an upper die respectively fixed on the surfaces of the lower fixing seat and the upper fixing seat. The lower fixing seat is a lower insulating plate 1, the upper fixing seat is an upper insulating plate 3, the lower die 2 is arranged on the upper surface of the lower insulating plate 1, and the upper die 4 is arranged on the lower surface of the upper insulating plate 3. The utility model discloses a sealed insulation board, including lower insulation board 1, upper insulation board 3, lower insulation board 1, the upper surface left and right sides all is fixed and is equipped with reference column 5, upper insulation board 3 slides and sets up on the post wall of two reference columns 5, the heating groove has been seted up to the preceding lateral wall of lower insulation board 1 and upper insulation board 3, the inside of heating groove is provided with solenoid 6, the opening part of heating groove is provided with closing plate 7, be provided with on the closing plate 7 and be used for the fixture fixed with solenoid 6, the preceding lateral wall of lower insulation board 1 and upper insulation board 3 just is located the left and right sides in heating groove and all is equipped with the stop gear who is used for compressing tightly closing plate 7. The utility model discloses because the upper and lower fixing base with current metal material adopts the insulation board to replace, and at the structure of the inside embedding heating coil of insulation board, avoided the fixing base to generate heat the energy loss who causes in step for the heating effect concentrates the high efficiency more, and the effectual energy consumption that has saved reduces enterprise manufacturing cost.

The clamping mechanism comprises a bidirectional screw rod 8, moving blocks 9, connecting rods 10, first arc-shaped clamping plates 15, first bevel gears 11, second bevel gears 13 and a rotating shaft 12, the sealing plate 7 is of a hollow structure, the bidirectional screw rod 8 is transversely positioned in the sealing plate 7, first rolling bearings are embedded in the left inner side wall and the right inner side wall of the sealing plate 7, two ends of the bidirectional screw rod 8 are rotatably connected with the left inner side wall and the right inner side wall of the sealing plate 7 through the first rolling bearings, the moving blocks 9 are bilaterally and symmetrically positioned in the sealing plate 7 and are in sliding connection with the inner side wall of the sealing plate 7, the side walls of the two moving blocks 9 are in threaded connection with the rod wall of the bidirectional screw rod 8 through first threaded holes and second threaded holes respectively, the connecting rods 10 are fixedly arranged on the upper sides of the two moving blocks 9 respectively, strip-shaped holes for the two connecting rods 10 to pass through are formed in the upper side of the sealing plate 7, the first arc-shaped clamping plates 15 are fixedly arranged at one ends of the two connecting rods 10 positioned outside the sealing plate 7 and are symmetrically arranged respectively, the electromagnetic coil 6 is located between the two first arc-shaped clamping plates 15, the first bevel gear 11 is fixedly arranged in the middle of the rod wall of the two-way screw rod 8, the rotating shaft 12 is vertically located below the two-way screw rod 8, the lower end of the rotating shaft is rotatably connected with the lower side of the sealing plate 7 through the second rolling bearing and is fixedly provided with a rocking handle 14, the upper end of the rotating shaft 12 is fixedly connected with the second bevel gear 13, and the first bevel gear 11 and the second bevel gear 13 are meshed.

Stop gear includes one-way lead screw 20, pressure strip 21 and screw ring 22, one-way lead screw 20 is fixed respectively to be set up on the preceding lateral wall of lower insulation board 1 and last insulation board 3, the surface of pressure strip 21 inserts on the pole wall of one-way lead screw 20 through the jack, screw ring 22 and one-way lead screw 20's pole wall threaded connection and with pressure strip 21 and last insulation board 3 between the fastening connection, one side that pressure strip 21 was kept away from to screw ring 22 is fixed to be equipped with manual ring 23, manual ring 23 cup joints with one-way lead screw 20's pole wall activity, can compress tightly the inside at the heating bath with the closing plate 7 is spacing.

In conclusion, this novel electromagnetic heating device, when using, because solenoid 6 is fixed to be set up in the inside of lower insulation board 1 and last insulation board 3 to can guarantee that solenoid 6 generates heat and only can carry out effectual heating to lower mould 2 and last mould 4. When the upper die 4 and the lower die 2 of different sizes are replaced, the worker manually rotates the manual ring 23 to separate the threaded ring 22 from the rod wall of the one-way screw rod 20, removes the pressing plate 21 from the rod wall of the one-way screw rod 20, and can take out the sealing plate 7 from the inside of the heating tank, thereby taking out the electromagnetic coil 6 from the inside of the heating tank. Then hand rotation rocking handle 14 makes pivot 12 rotatory, and pivot 12 can drive second bevel gear 13 and rotate, and second bevel gear 13 can drive first bevel gear 11 and rotate, can make two-way lead screw 8 rotatory, and two-way lead screw 8 can make two movable blocks 9 keep away from the removal relatively to make two first arc splint 15 separation through two connecting rods 10, can take out solenoid 6 and change. After the electromagnetic coils 6 with different sizes are replaced, the rocking handle 14 is rotated reversely, so that the electromagnetic coils 6 with different sizes are clamped and fixed by the first arc-shaped clamping plate 15, then the sealing plate 7 is inserted into the heating groove, and the sealing plate 7 is pressed and limited in the heating groove through the pressing plate 21 and the threaded ring 22. And finally, the upper insulating plate 3 slides up and down on the column wall of the positioning column 5, and the distance between the upper insulating plate 3 and the lower insulating plate 1 is adjusted according to the size of the die, so that the power can be switched on to start working.

Example three:

referring to fig. 3, 4, 6 and 7, the electromagnetic heating device of the present invention includes a lower fixing base, an upper fixing base, and a lower die and an upper die respectively fixed on the surfaces of the lower fixing base and the upper fixing base. The lower fixing seat is a lower insulating plate 1, the upper fixing seat is an upper insulating plate 3, the lower die 2 is arranged on the upper surface of the lower insulating plate 1, and the upper die 4 is arranged on the lower surface of the upper insulating plate 3. Because solenoid 6 is fixed to be set up in the inside of lower insulating plate 1 and upper insulating plate 3 to can guarantee that solenoid 6 generates heat and only can carry out effectual heating to lower mould 2 and last mould 4. The left side and the right side of the upper surface of the lower insulating plate 1 are respectively fixedly provided with a positioning column 5, and the upper insulating plate 3 is arranged on the column walls of the two positioning columns 5 in a sliding manner. The heating groove is formed in the front side wall of the upper insulating plate 3, the electromagnetic coil 6 is arranged inside the heating groove, and the sealing plate 7 is arranged at the opening of the heating groove. The sealing plate 7 is provided with a clamping mechanism for fixing the electromagnetic coil 6, and the front side wall of the upper insulating plate 3 and the left side and the right side of the heating groove are both provided with limiting mechanisms for compressing the sealing plate 7. The utility model discloses because the upper and lower fixing base with current metal material adopts the insulation board to replace, and at the structure of the inside embedding heating coil of insulation board, avoided the fixing base to generate heat the energy loss who causes in step for the heating effect concentrates the high efficiency more, and the effectual energy consumption that has saved reduces enterprise manufacturing cost.

The clamping mechanism comprises a fixed seat 25, a sleeve 16, a moving rod 17, a spring 18 and a second arc-shaped clamping plate 19, wherein the fixed seat 25 is fixedly arranged on the upper side of the sealing plate 7. The sleeve 16 is fixed on the upper side of the sealing plate 7 in a bilateral symmetry manner and is respectively positioned on two sides of the fixed seat 25. The movable rods 17 are arranged inside the two sleeves 16 in a sliding mode respectively, the lower ends of the two movable rods 17 are fixedly connected with the upper ends of the springs 18 respectively, the lower ends of the springs 18 are fixedly connected with the inner walls of the two sleeves 16 respectively, the upper ends of the two movable rods 17 extend to the outer portion of the corresponding sleeve 16 and are fixedly connected with the second arc-shaped clamping plate 19, and the electromagnetic coil 6 is located between the fixed seat 25 and the second arc-shaped clamping plate 19.

In conclusion, this novel electromagnetic heating device, when using, because solenoid 6 is fixed to be set up in the inside of lower insulation board 1 and last insulation board 3 to can guarantee that solenoid 6 generates heat and only can carry out effectual heating to lower mould 2 and last mould 4. When the upper die 4 and the lower die 2 of different sizes are replaced, the worker manually rotates the manual ring 23 to separate the threaded ring 22 from the rod wall of the one-way screw rod 20, removes the pressing plate 21 from the rod wall of the one-way screw rod 20, and can take out the sealing plate 7 from the inside of the heating tank, thereby taking out the electromagnetic coil 6 from the inside of the heating tank. The operator then pulls the second arc shaped clamp plate 19 so that the moving rod 17 moves inside the sleeve 16 and stretches the spring 18, thereby enabling the solenoid coil 6 to be taken out from the inside of the second arc shaped clamp plate 19 for replacement of a different size of the solenoid coil 6. After the electromagnetic coil 6 with different sizes is replaced, the second arc-shaped clamping plate 19 is loosened, and the second arc-shaped clamping plate is reset under the elastic force of the spring 18, so that the electromagnetic coil 6 is fixed between the second arc-shaped clamping plate 19 and the fixed seat 25. The sealing plate 7 is then inserted into the heating groove and the sealing plate 7 is pressed and retained inside the heating groove by the pressing plate 21 and the threaded ring 22. And finally, the upper insulating plate 3 slides up and down on the column wall of the positioning column 5, and the distance between the upper insulating plate 3 and the lower insulating plate 1 is adjusted according to the size of the die, so that the power can be switched on to start working.

It is to be noted that the term "comprises," "comprising," or any other variation thereof is intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a novel electromagnetic heating device, includes fixing base and last fixing base down, and is fixed in respectively the lower mould and the last mould on fixing base surface down, its characterized in that: the lower fixing base is a lower insulating plate (1), the upper fixing base is an upper insulating plate (3), the lower die (2) is arranged on the upper surface of the lower insulating plate (1), the upper die (4) is arranged on the lower surface of the upper insulating plate (3), positioning columns (5) are fixedly arranged on the left side and the right side of the upper surface of the lower insulating plate (1), the upper insulating plate (3) is arranged on two column walls of the positioning columns (5) in a sliding mode, electromagnetic coils (6) are fixedly packaged in the lower insulating plate (1) and the upper insulating plate (3) respectively, and the two ends of the electromagnetic coils (6) penetrate out the lower insulating plate (1) and the upper insulating plate (3) respectively and are connected to a control panel.

2. The utility model provides a novel electromagnetic heating device, includes fixing base and last fixing base down, and is fixed in respectively the lower mould and the last mould on fixing base surface down, its characterized in that: the lower fixed seat is a lower insulating plate (1), the upper fixed seat is an upper insulating plate (3), the lower die (2) is arranged on the upper surface of the lower insulating plate (1), the upper die (4) is arranged on the lower surface of the upper insulating plate (3), positioning columns (5) are fixedly arranged on the left side and the right side of the upper surface of the lower insulating plate (1), the upper insulating plate (3) is arranged on the column walls of the two positioning columns (5) in a sliding manner, the front side walls of the lower insulating plate (1) and the upper insulating plate (3) are provided with heating grooves, an electromagnetic coil (6) is arranged in the heating groove, a sealing plate (7) is arranged at the opening of the heating groove, the sealing plate (7) is provided with a clamping mechanism for fixing the electromagnetic coil (6), the front side walls of the lower insulating plate (1) and the upper insulating plate (3) are provided with limiting mechanisms for compressing the sealing plate (7) on the left side and the right side of the heating groove.

3. A novel electromagnetic heating device as claimed in claim 2, wherein: the clamping mechanism comprises a bidirectional screw rod (8), moving blocks (9), connecting rods (10), first arc-shaped clamping plates (15), first bevel gears (11), second bevel gears (13) and a rotating shaft (12), the sealing plate (7) is of a hollow structure, the bidirectional screw rod (8) is transversely positioned inside the sealing plate (7), first rolling bearings are embedded in the left inner side wall and the right inner side wall of the sealing plate (7), two ends of the bidirectional screw rod (8) are rotatably connected with the left inner side wall and the right inner side wall of the sealing plate (7) through the first rolling bearings, the moving blocks (9) are bilaterally symmetrically positioned inside the sealing plate (7) and are slidably connected with the inner side walls of the sealing plate (7), the side walls of the two moving blocks (9) are respectively in threaded connection with the rod walls of the bidirectional screw rod (8) through first threaded holes and second threaded holes, and the connecting rods (10) are respectively and fixedly arranged on the upper sides of the two moving blocks (9), the upside of closing plate (7) is seted up and is used for two the bar hole that connecting rod (10) passed, first arc splint (15) are fixed respectively and are set up in two connecting rod (10) are located the outside one end of closing plate (7) and are the symmetry setting, solenoid (6) are located two between first arc splint (15), first bevel gear (11) are fixed to be set up in the pole wall middle part of two-way lead screw (8), the lower extreme that pivot (12) are vertical to be located two-way lead screw (8) is rotated through the downside of second antifriction bearing and closing plate (7) and is connected and fixed rocking handle (14) are equipped with, the upper end and second bevel gear (13) fixed connection of pivot (12), first bevel gear (11) and second bevel gear (13) meshing setting.

4. A novel electromagnetic heating device as claimed in claim 2, wherein: the clamping mechanism comprises a fixed seat (25), a sleeve (16), a moving rod (17), a spring (18) and a second arc-shaped clamping plate (19), the fixed seat (25) is fixedly arranged on the upper side of the sealing plate (7), the sleeves (16) are fixedly arranged on the upper side of the sealing plate (7) in a bilateral symmetry manner and are respectively positioned on two sides of the fixed seat (25), the moving rods (17) are respectively arranged inside the two sleeves (16) in a sliding manner, the lower ends of the two moving rods (17) are respectively fixedly connected with the upper ends of the springs (18), the lower ends of the two springs (18) are respectively fixedly connected with the inner walls of the two sleeves (16), the upper ends of the two moving rods (17) extend to the outer parts corresponding to the sleeves (16) and are respectively fixedly connected with the second arc-shaped clamping plates (19), the electromagnetic coil (6) is positioned between the fixed seat (25) and the second arc-shaped clamping plate (19).

5. A novel electromagnetic heating device as claimed in claim 2, wherein: the limiting mechanism comprises a one-way screw rod (20), a pressing plate (21) and a threaded ring (22), the one-way screw rod (20) is fixedly arranged on the front side wall of the lower insulating plate (1) and the front side wall of the upper insulating plate (3) respectively, the surface of the pressing plate (21) is inserted into the rod wall of the one-way screw rod (20) through an insertion hole, and the threaded ring (22) is in threaded connection with the rod wall of the one-way screw rod (20) and fastens and connects the pressing plate (21) and the upper insulating plate (3).

6. The novel electromagnetic heating device of claim 5, characterized in that: one side of the threaded ring (22) far away from the pressing plate (21) is fixedly provided with a manual ring (23), and the manual ring (23) is movably sleeved with the rod wall of the one-way screw rod (20).