Heating device integrating induction heating coil and resistance heating disc

Abstract

The utility model relates to the technical field of heating devices, in particular to a heating device integrating an induction heating coil and a resistance heating disc, which is used for heating an iron core and comprises a workbench, a lifting assembly, a heating template piece, the induction heating coil and an upper template resistance heating disc. The heating mechanism integrating the induction heating coil and the resistance heating disc is provided with the independent injection molding upper template heating piece and the injection molding lower template heating piece, so that the defect of non-uniform heating of the induction heating coil is avoided, the iron core injection molding quality is improved, and the heating rhythm is saved; the iron core is independently positioned and lifted to enter the induction heating coil, so that the problem that the induction heating coil in the prior art can be heated to an unnecessary mechanical structure is solved, and the risk of scalding an operator is avoided; and the iron core positioning and lifting device is simple and compact in structure, and can realize positioning and lifting of the iron core under the working condition of narrow space.

Description

Technical Field

[0001] The utility model relates to the technical field of heating devices, in particular to a heating device integrating an induction heating coil and a resistance heating disk. Background Art

[0002] At present, the existing motor rotor core heating device is usually used to achieve rapid heating of the injection molding upper template, rotor core, and injection molding lower template in order to facilitate the core injection molding process. The existing heating device is composed of a core induction heating coil and a coil lifting device. The coil lifting device drives the induction coil to descend until the injection molding upper template, rotor core, and injection molding lower template are completely inserted into the induction heating coil to achieve rapid heating of the core. However, the heating of the injection molding upper template, core, and injection molding lower template by the induction heating coil is often very uneven, especially the injection molding upper template and the injection molding lower template, the temperature difference is relatively large, which will cause the molten plastic to be encapsulated in advance and cannot flow into the lower core, thereby causing the core injection molding to fail.

[0003] Therefore, it is very important to provide a heating device that can solve the above-mentioned technical problems. Utility Model Content

[0004] In order to solve the above problems, the purpose of the utility model is to provide a heating device integrating an induction heating coil and a resistance heating disk.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] The utility model provides a heating device integrating an induction heating coil and a resistance heating plate, which is used to heat an iron core, and comprises a workbench, a lifting assembly, a heating template, an induction heating coil, an upper template resistance heating plate and a lower template resistance heating plate;

[0007] A mounting frame is provided on the upper surface of the workbench, the upper template resistance heating disk and the induction heating coil are fixed on the mounting frame, and the upper template resistance heating disk is located above the induction heating coil, and the central axes thereof are the same; a cylinder is provided on the mounting frame, the output end of the cylinder is connected to the bottom end of a lifting assembly extending out of the workbench, and a lower template resistance heating disk is provided on the top of the lifting assembly; the heating template part is allowed to be embedded in the induction heating coil, and includes an injection molding upper template and an injection molding lower template, there is a space for accommodating an iron core between the injection molding upper template and the injection molding lower template, the injection molding lower template is engagedly connected with the lower template resistance heating disk, the injection molding upper template is arranged below the upper template resistance heating disk, and is allowed to be connected with the upper template resistance heating disk.

[0008] In one embodiment of the utility model, the upper template resistance heating plate is connected to the mounting frame via a bracket;

[0009] From top to bottom, a mounting block and a first heat insulating block are sequentially arranged between the bracket and the upper template resistance heating plate.

[0010] In one embodiment of the utility model, an induction heating coil support frame is provided outside the induction heating coil and is fixedly connected to the induction heating coil support frame;

[0011] The installation frame is provided with two groups of installation arms arranged in parallel and at intervals, and the induction heating coil support frame is arranged on the upper surface of the installation arms.

[0012] In one embodiment of the utility model, the lifting assembly is a push rod, the bottom of the push rod is connected to the bottom of the output end of the cylinder through an auxiliary bracket, the top of the push rod is connected to the lower template resistance heating plate through a second insulation block, a guide rail is provided on the side of the push rod, a slider matching the guide rail is provided on the outer side of the guide rail, and a slider fixing plate is provided on the side of the slider away from the guide rail;

[0013] Wherein, the slider fixing plate is fixedly connected to the workbench.

[0014] In one embodiment of the present utility model, the auxiliary bracket is arranged at the bottom end of the cylinder output end, and the auxiliary bracket is connected to the bottom end side of the push rod.

[0015] In one embodiment of the present utility model, positioning pins are provided on the upper surface of the lower template resistance heating disk.

[0016] In one embodiment of the present invention, a positioning groove for accommodating a positioning pin is provided on the lower surface of the lower injection molding template.

[0017] In one embodiment of the utility model, an infrared thermometer is arranged on the mounting frame, and a detection end of the infrared thermometer extends into the induction heating coil to detect the temperature of the iron core.

[0018] In one embodiment of the utility model, a positioning block is provided on the side of the cylinder, a vertical bracket is provided on the upper surface of the workbench, and a first proximity sensor and a second proximity sensor for detecting the position of the positioning block are provided on the vertical bracket;

[0019] The second proximity sensor is arranged at the bottom of the bracket, and the first proximity sensor is arranged directly above the second proximity sensor.

[0020] Among them, when the upper template resistance heating plate contacts the injection molding upper template, the mounting block is driven by the cylinder to the point where the first proximity sensor can just detect it. At this time, the first proximity sensor sends a rising position signal;

[0021] When the mounting block is driven to the height of the workbench surface by the cylinder, the second proximity sensor can just detect it, and at this time the second proximity sensor sends a signal that it has fallen into place.

[0022] In one embodiment of the present invention, a hydraulic buffer is provided at the bottom of the cylinder output end.

[0023] In one embodiment of the utility model, the workbench is provided with a first guide hole for allowing the cylinder to extend and a second guide hole for allowing the push rod to extend.

[0024] In one embodiment of the utility model, an auxiliary support plate is provided on a side of the mounting frame away from the induction heating coil, and the auxiliary support plate is bolted to the workbench and the mounting bracket.

[0025] Compared with the prior art, the utility model has the following beneficial effects:

[0026] (1) The utility model is a heating device integrating an induction heating coil and a resistance heating disk, which has an independent injection molding upper mold plate heating element (upper mold plate resistance heating disk) and an injection molding lower mold plate heating element (lower mold plate resistance heating disk), thereby avoiding the defect of uneven heating of the induction heating coil, improving the injection molding quality of the iron core, and saving the heating cycle.

[0027] (2) The utility model designs an iron core positioning and lifting device, which independently positions and lifts the iron core into the induction heating coil, thereby solving the problem in the prior art that the induction heating coil will heat unnecessary mechanical structures, thereby avoiding the risk of scalding the operator.

[0028] (3) The utility model designs an iron core positioning and lifting device with a simple and compact structure, which can realize the iron core positioning and lifting in a narrow space working condition. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a three-dimensional structural schematic diagram of a heating device integrating an induction heating coil and a resistance heating disk according to the present invention (I);

[0030] Figure 2 This is a three-dimensional structural schematic diagram of a heating device integrating an induction heating coil and a resistance heating disk according to the present invention (II);

[0031] Figure 3 It is a cross-sectional view of an iron core positioning lifting assembly in a heating device integrating an induction heating coil and a resistance heating disk according to the utility model, when the iron core positioning lifting assembly is lifted into place;

[0032] Numbers in the figure: 1. workbench; 2. mounting frame; 3. auxiliary support plate; 4. mounting arm; 5. bracket; 6. mounting block; 7. first insulation block; 8. induction heating coil support frame; 9. induction heating coil; 10. upper template resistance heating disk; 11. cylinder; 12. hydraulic buffer; 13. auxiliary bracket; 14. ejector rod; 15. sliding guide rail; 16. slider; 17. slider fixing plate; 18. second insulation block; 19. lower template resistance heating disk; 20. first guide hole; 21. second guide hole; 22. vertical bracket; 23. first proximity sensor; 24. second proximity sensor; 25. positioning block; 26. infrared thermometer; 27. injection molding upper template; 28. iron core; 29. ​​injection molding lower template. DETAILED DESCRIPTION

[0033] The utility model is described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0036] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0037] Example 1

[0038] This embodiment provides a heating device integrating an induction heating coil and a resistance heating disk, which is used to heat the iron core 28 and is connected to an external terminal when in use, such as Figures 1 to 3 As shown, it includes a workbench 1, a lifting assembly, a heating template component, an induction heating coil 9, an upper template resistance heating plate 10 and a lower template resistance heating plate 19;

[0039] A mounting frame 2 is provided on the upper surface of the workbench 1, and an upper template resistance heating disk 10 and an induction heating coil 9 are fixed on the mounting frame 2, and the upper template resistance heating disk 10 is located above the induction heating coil 9, and the upper template resistance heating disk 10 is the same as the central axis of the induction heating coil 9; a cylinder 11 is provided on the mounting frame 2, and the output end of the cylinder 11 is connected to the bottom end of a lifting assembly extending out of the workbench 1, and a lower template resistance heating disk 19 is provided at the top of the lifting assembly; the heating template member is allowed to be embedded in the induction heating coil 9, including an injection molding upper template 27 and an injection molding lower template 29, and there is a space for accommodating an iron core 28 between the injection molding upper template 27 and the injection molding lower template 29, and the injection molding lower template 29 is engaged and connected with the lower template resistance heating disk 19, and the injection molding upper template 27 is arranged below the upper template resistance heating disk 10, and is allowed to be connected to the upper template resistance heating disk 10.

[0040] Furthermore, the upper template resistance heating disk 10 is connected to the mounting frame 2 through the bracket 5; from top to bottom, a mounting block 6 and a first insulation block 7 are sequentially arranged between the bracket 5 and the upper template resistance heating disk 10 (used to isolate the high temperature transfer of the upper template resistance heating disk 10, i.e. to avoid shortening the service life of the mounting block 6 and the bracket 5).

[0041] Furthermore, an induction heating coil support frame 8 is arranged outside the induction heating coil 9 and is fixedly connected to the induction heating coil support frame 8; two sets of mounting arms 4 are arranged in parallel and at intervals on the mounting frame 2, and the induction heating coil support frame 8 is arranged on the upper surface of the mounting arm 4.

[0042] Furthermore, the lifting assembly is a push rod 14, the bottom of which is connected to the bottom of the output end of the cylinder 11 through an auxiliary bracket 13, the top of which is connected to the lower template resistance heating disk 19 through a second insulation block 18 (used to isolate the high temperature transfer of the lower template resistance heating disk 19, i.e. to avoid shortening the service life of the push rod 14), a guide rail 15 is arranged on the side of the push rod 14, a slider 16 cooperating with the guide rail 15 is arranged on the outer side of the guide rail 15, and a slider fixing plate 17 is arranged on the side of the slider 16 away from the guide rail 15; wherein the slider fixing plate 17 is fixedly connected to the workbench 1.

[0043] Furthermore, the auxiliary bracket 13 is disposed at the bottom end of the output end of the cylinder 11 , and the auxiliary bracket 13 is connected to the bottom end side surface of the push rod 14 .

[0044] Furthermore, a positioning pin is provided on the upper surface of the lower template resistance heating disk 19, and a positioning groove for accommodating the positioning pin is provided on the lower surface of the injection molding lower template 29; wherein, the setting of the positioning pin and the positioning groove enables the lower template resistance heating disk 19 to fit accurately with the injection molding lower template 29.

[0045] Furthermore, an infrared thermometer 26 is provided on the mounting frame 2 , and a detection end of the infrared thermometer 26 extends into the induction heating coil 9 to detect the temperature of the iron core 28 .

[0046] Furthermore, a positioning block 25 is provided on the side of the cylinder 11, a vertical bracket 22 is provided on the upper surface of the workbench 1, and a first proximity sensor 23 and a second proximity sensor 24 for detecting the position of the positioning block 25 are provided on the vertical bracket 22; the second proximity sensor 24 is provided at the bottom of the bracket 5, and the first proximity sensor 23 is provided directly above the second proximity sensor 24.

[0047] Among them, when the upper template resistance heating plate 10 contacts the injection upper template 27, the positioning block 25 is driven by the cylinder 11 to the first proximity sensor 23 just to be detected (the height setting principle of the first proximity sensor 23 can be set according to the actual situation). At this time, the first proximity sensor 23 sends a rising position signal (transmits the signal to the external terminal);

[0048] When the positioning block 25 is driven to the surface height of the workbench 1 by the cylinder 11, the second proximity sensor 24 can just detect it (the sizes of other components can be adjusted according to this principle). At this time, the second proximity sensor 24 sends a signal that it has fallen into place (the signal is transmitted to the external terminal).

[0049] Furthermore, a hydraulic buffer 12 is provided at the bottom of the output end of the cylinder 11, wherein the hydraulic buffer 12 is used to make the movement of the cylinder 11 smoother, improve the control accuracy of the entire system, and also to reduce the impact force of the cylinder 11, protect its structure and extend its service life, and also to fine-tune the position of the upper template resistance heating disk 10 and the injection molding upper template 27 to achieve a better fit between the upper template resistance heating disk 10 and the injection molding upper template 27; a first guide hole 20 allowing the cylinder 11 to extend and a second guide hole 21 allowing the push rod 14 to extend are provided on the workbench 1, and the slider fixing plate 17 is fixed to the inner wall of the second guide hole 21; an auxiliary support plate is provided on the side of the mounting frame 2 away from the induction heating coil 9, and the auxiliary support plate is bolted to the workbench 1 and the mounting bracket 5; the external terminal is connected to the cylinder 11, the infrared thermometer 26, the first proximity sensor 23 and the second proximity sensor 24.

[0050] When in use, the iron core 28 is placed between the injection molding upper template 27 and the injection molding lower template 29, and the positioning pin on the lower template resistance heating disk 19 is embedded in the positioning groove of the injection molding lower template 29 to achieve the fitting of the injection molding lower template 29 and the lower template resistance cooling disk; the external terminal starts the cylinder 11 to contract, thereby driving the push rod 14 to rise, and then driving the injection molding upper template 27, the iron core 28 and the injection molding lower template 29 to enter the induction heating coil 9, until the injection molding upper template 27 is fitted with the upper template resistance heating disk 10 (at this time, the hydraulic buffer 12 can fine-tune the position of the upper template resistance heating disk 10 after lifting, so that the upper template resistance heating disk 10 is tightly fitted with the injection molding upper template 27), at this time, the positioning block 25 also rises to the height just monitored by the first proximity sensor 23, and the first proximity sensor 23 gives a rising position signal to the external terminal, and the external terminal stops the cylinder 11 from contracting and controls the upper template resistance heating disk 10. The lower template resistance heating disk 19 and the induction heating coil 9 start heating. During the heating process, the temperature of the iron core 28 is monitored in real time by the infrared thermometer 26. When the temperature reaches the target, the infrared thermometer 26 sends a temperature arrival signal to the external terminal. The external terminal controls the upper template resistance heating disk 10, the lower template resistance heating disk 19 and the induction heating coil 9 to stop heating, and starts the cylinder 11 to extend, thereby driving the ejector rod 14 to descend, and then driving the injection molding upper template 27, the iron core 28 and the injection molding lower template 29 to exit the induction heating coil 9. When the positioning block 25 descends to the height just monitored by the second proximity sensor 24 (the height of the plane where the workbench 1 is located), the second proximity sensor 24 sends a descending signal to the external terminal. The external terminal stops the extension of the cylinder 11, removes the iron core 28 and places the iron core 28 in the next process (for example, using a robot to remove the iron core 28 and place the iron core 28 in the injection molding process).

[0051] The above description of the embodiments is to facilitate the understanding and use of the utility model by those skilled in the art. It is obvious that those familiar with the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the utility model is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the interpretation of the utility model without departing from the scope of the utility model should be within the scope of protection of the utility model.

Claims

1. A heating device integrating an induction heating coil and a resistance heating disk, used to heat an iron core (28), characterized in that: It comprises a workbench (1), a lifting assembly, a heating template component, an induction heating coil (9), an upper template resistance heating plate (10) and a lower template resistance heating plate (19); The upper surface of the workbench (1) is provided with a mounting frame (2), the upper template resistance heating disk (10) and the induction heating coil (9) are fixed on the mounting frame (2), and the upper template resistance heating disk (10) is located above the induction heating coil (9), and the axes thereof are the same; a cylinder (11) is provided on the mounting frame (2), the output end of the cylinder (11) is connected to the bottom end of a lifting assembly extending out of the workbench (1), and a lower template resistance heating disk (19) is provided at the top end of the lifting assembly; the heating template member is allowed to be embedded in the induction heating coil (9), and comprises an injection molding upper template (27) and an injection molding lower template (29), a space for accommodating an iron core (28) exists between the injection molding upper template (27) and the injection molding lower template (29), the injection molding lower template (29) is engaged and connected with the lower template resistance heating disk (19), the injection molding upper template (27) is arranged below the upper template resistance heating disk (10), and is allowed to be connected with the upper template resistance heating disk (10).

2. The heating device integrating the induction heating coil and the resistance heating disk according to claim 1, characterized in that: The upper template resistance heating plate (10) is connected to the mounting frame (2) via a bracket (5); From top to bottom, a mounting block (6) and a first heat insulating block (7) are sequentially arranged between the bracket (5) and the upper mold plate resistance heating plate (10).

3. The heating device integrating the induction heating coil and the resistance heating disk according to claim 2, characterized in that: An induction heating coil support frame (8) is disposed outside the induction heating coil (9) and is fixedly connected to the induction heating coil support frame (8); Two groups of mounting arms (4) are arranged in parallel and at intervals on the mounting frame (2), and the induction heating coil support frame (8) is arranged on the upper surface of the mounting arms (4).

4. The heating device integrating the induction heating coil and the resistance heating disk according to claim 1, characterized in that: The lifting assembly is a push rod (14), the bottom of the push rod (14) is connected to the bottom of the output end of the cylinder (11) through an auxiliary bracket (13), the top of the push rod (14) is connected to the lower template resistance heating plate (19) through a second insulation block (18), a guide rail (15) is arranged on the side of the push rod (14), a slider (16) matched with the guide rail (15) is arranged on the outer side of the guide rail (15), and a slider fixing plate (17) is arranged on the side of the slider (16) away from the guide rail (15); Wherein, the slider fixing plate (17) is fixedly connected to the workbench (1).

5. The heating device integrating the induction heating coil and the resistance heating disk according to claim 4, characterized in that: The auxiliary bracket (13) is arranged at the bottom end of the output end of the cylinder (11), and the auxiliary bracket (13) is connected to the bottom end side surface of the push rod (14).

6. The heating device integrating the induction heating coil and the resistance heating disk according to claim 1, characterized in that: The upper surface of the lower template resistance heating disk (19) is provided with positioning pins.

7. The heating device integrating the induction heating coil and the resistance heating disk according to claim 6, characterized in that: The lower surface of the lower injection molding template (29) is provided with a positioning groove for accommodating a positioning pin.

8. The heating device integrating the induction heating coil and the resistance heating disk according to claim 1, characterized in that: An infrared thermometer (26) is arranged on the installation frame (2), and a detection end of the infrared thermometer (26) extends into the induction heating coil (9).

9. The heating device integrating the induction heating coil and the resistance heating disk according to claim 1, characterized in that: A positioning block (25) is arranged on the side of the cylinder (11), a vertical bracket (22) is arranged on the upper surface of the workbench (1), and a first proximity sensor (23) and a second proximity sensor (24) for detecting the position of the positioning block (25) are arranged on the vertical bracket (22); The second proximity sensor (24) is arranged at the bottom of the bracket (5), and the first proximity sensor (23) is arranged directly above the second proximity sensor (24).

10. The heating device integrating the induction heating coil and the resistance heating disk according to claim 1, characterized in that: A hydraulic buffer (12) is provided at the bottom of the output end of the cylinder (11).

Images