Induction heating wire coil structure of electromagnetic sealing machine

Abstract

The utility model provides an induction heating wire coil structure of an electromagnetic sealing machine, which relates to the technical field of sealing equipment and comprises a wire coil shell, a plurality of cooling fans are distributed in the wire coil shell, a coil assembly is arranged below the cooling fans and comprises a magnetic core, and an electromagnetic coil is arranged in the magnetic core. The middle of the magnetic core protrudes outwards to form a cylinder, and the electromagnetic coil is evenly wound on the cylinder. The electromagnetic heating bottle has the beneficial effects that the electromagnetic coils are uniformly wound on the cylinder of the magnetic core, so that a magnetic field of electromagnetic induction can be concentrated on a bottle opening needing to be heated, the heating temperature is more concentrated, a better heating effect can be realized, interference among the electromagnetic coils is reduced, and the heating effect is improved. And the problem that other surrounding metals are heated together is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing equipment, in particular to an induction heating coil structure of an electromagnetic sealing machine. Background Art

[0002] The electromagnetic induction aluminum foil sealing machine is specifically designed for sealing bottled products and is one of the most ideal sealing equipment at present. Its working principle is that after the electromagnetic generator (abbreviated as the induction head) and the aluminum foil gasket (a special sealing consumable formed by laminating an aluminum foil layer, an auxiliary layer, and a heat-sealing layer) are induced, the aluminum foil layer on the aluminum foil gasket instantly generates high temperature, and the high temperature can completely melt the heat-sealing layer on the aluminum foil gasket with the bottle mouth to achieve the purpose of sealing.

[0003] In the prior art, in the technical solution of the Chinese patent document (publication number: CN204056431U, patent name: electromagnetic induction aluminum foil sealing machine), it is disclosed that "it includes a main machine inductor and a water tank assembly, and the water tank assembly includes a water storage tank, a circulating booster pump, and a condenser; the water return port of the water storage tank is connected to a return water pipe, and the other end of the return water pipe is connected to the water outlet of the condenser; the water outlet of the water storage tank is connected to a water outlet pipe, and the other end of the water outlet pipe is connected to the water inlet of the circulating booster pump; the water outlet of the circulating booster pump is connected to an internal water supply pipe, and the water inlet of the condenser is connected to an internal water return pipe; its characteristics are: the main machine inductor includes an inductor and a main machine; the inductor includes an electromagnetic induction coil and a capacitor formed by winding copper pipes according to the magnetic movement rule; the main machine includes a heat buffer ring belt and a heat dissipation fan, and the heat buffer ring belt is formed by winding the copper pipe around the electromagnetic induction coil along the main machine circuit system and is embedded in the aluminum heat conduction plate of the main machine circuit system; the water inlet port of the heat buffer ring belt is connected to an external water supply pipe, and the other end of the external water supply pipe is connected to the internal water supply pipe; the water outlet port of the heat buffer ring belt is connected to an external water return pipe, and the other end of the external water return pipe is connected to the internal water return pipe."

[0004] Combined with the description content of the patent document and the attached drawings, the electromagnetic induction coil is wound into a disc shape. This kind of electromagnetic induction coil disc has uneven heating and scattered magnetic lines of force. Especially when heating a small-area metal sheet, it will also heat other metals around the coil that do not need to be heated, consuming energy and having potential safety hazards at the same time. Therefore, it is necessary to develop a heating coil structure with concentrated magnetic field and convenient for assembly line operation. Content of the Utility Model

[0005] The utility model overcomes the shortcomings in the prior art and provides an induction heating coil structure of an electromagnetic sealing machine, which has concentrated heating, good anti-interference performance, and high efficiency.

[0006] In order to solve the above technical problems, the utility model is realized through the following technical solutions:

[0007] An induction heating coil structure for an electromagnetic sealing machine, comprising a coil housing, wherein a plurality of cooling fans are distributed in the coil housing, a coil assembly is arranged below the cooling fans, the coil assembly includes a magnetic core, an electromagnetic coil is arranged in the magnetic core, a cylinder protrudes outward from the middle of the magnetic core, and the electromagnetic coil is evenly wound around the cylinder.

[0008] Furthermore, the magnetic core is a PM-type magnetic core with high magnetic permeability, semi-enclosed regions extend outward from both sides of the magnetic core, and the electromagnetic coil is arranged in the semi-enclosed regions.

[0009] Furthermore, the coil housing includes a cover plate, a housing is arranged below the cover plate, a cavity is formed between the cover plate and the housing, and the cooling fans are arranged in the cavity.

[0010] Furthermore, a plurality of cylindrical hole positions are distributed below the housing, the magnetic core is arranged in the cylindrical hole positions, and a coil disk lower cover is threadedly connected to the lower end of the cylindrical hole positions.

[0011] Furthermore, a plurality of fan holes are distributed on the housing, and the fan holes are arranged between the cooling fans and the magnetic core.

[0012] Furthermore, a partition layer made of foamed silica gel strip is arranged at the bottom of the coil disk lower cover, a plurality of first heat dissipation holes are arranged on the coil disk lower cover, a plurality of second heat dissipation holes are arranged on the partition layer, and the first heat dissipation holes correspond to the second heat dissipation holes.

[0013] Furthermore, a plurality of first fixing holes are distributed on the cover plate, a plurality of second fixing holes are distributed in the cavity, and the first fixing holes correspond to the second fixing holes.

[0014] Furthermore, mounting plates extend outward from both sides of the housing, and a plurality of adjustment holes are arranged on the mounting plates.

[0015] Compared with the prior art, the beneficial effects of the present utility model are:

[0016] The electromagnetic coil is evenly wound around the cylinder of the magnetic core. This design can make the magnetic field of electromagnetic induction concentrated on the bottle mouth to be heated, the heating temperature is more concentrated, a better heating effect can be achieved, and at the same time, the interference between electromagnetic coils is reduced, avoiding the problem that other surrounding metals are also heated together. Description of the Drawings

[0017] The drawings are used to provide a further understanding of the present utility model, and are used together with the embodiments of the present utility model to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:

[0018] Figure 1 is the overall structure of the induction heating coil of the electromagnetic sealing machine in the embodiment of the present utility modelFigure 1 ;

[0019] Figure 2 is the overall structure of the induction heating coil disc of the electromagnetic sealer according to the embodiment of the present utility model Figure 2 ;

[0020] Figure 3 is the inner view of the cylindrical hole position according to the embodiment of the present utility model;

[0021] Figure 4 is the schematic diagram of the coil assembly according to the embodiment of the present utility model;

[0022] Figure 5 is the schematic diagram of the lower cover of the coil disc according to the embodiment of the present utility model;

[0023] Figure 6 is the inner view of the housing according to the embodiment of the present utility model.

[0024] In the figure: 1 - coil disc housing, 101 - cover plate, 1011 - first fixing hole, 102 - housing, 1021 - fan hole, 1022 - mounting plate, 1023 - adjustment hole, 103 - cavity, 1031 - second fixing hole, 104 - cylindrical hole position, 105 - lower cover of the coil disc, 1051 - first heat dissipation hole, 2 - coil assembly, 201 - magnetic core, 2011 - cylinder, 202 - electromagnetic coil, 3 - heat dissipation fan, 4 - partition layer, 401 - second heat dissipation hole. Detailed implementation manners

[0025] The following is a description of the preferred embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustrating and explaining the present utility model, and are not used to limit the present utility model.

[0026] As Figures 1 to 2 shown, an induction heating coil disc structure of an electromagnetic sealer includes a coil disc housing 1. A plurality of heat dissipation fans 3 are distributed inside the coil disc housing 1. A coil assembly 2 is arranged below the heat dissipation fans 3. The coil assembly 2 includes a magnetic core 201. An electromagnetic coil 202 is arranged inside the magnetic core 201. A cylinder 2011 protrudes outward from the middle of the magnetic core 201. The electromagnetic coil 202 is evenly wound around the cylinder 2011. This design can make the magnetic field of electromagnetic induction concentrated on the bottle mouth to be heated, the heating temperature is more concentrated, a better heating effect can be achieved, and at the same time, the interference between the electromagnetic coils 202 is reduced, and the problem that other surrounding metals are also heated together is avoided.

[0027] Specifically, as Figures 3 to 4As shown, the magnetic core 201 is a PM-type magnetic core with high magnetic permeability. On both sides of the magnetic core 201, semi-enclosed regions extend outward. The electromagnetic coil 202 is arranged in the semi-enclosed regions. The main function of the PM-type magnetic core with high magnetic permeability is to enhance the magnetic field of the electromagnetic coil 202, thereby improving the electromagnetic conversion efficiency. And when the electromagnetic coil 202 winds around the cylinder 2011 for each layer, 3 bamboo sticks are needed for isolation. After winding, high-temperature glue is applied for fixation to prevent the coil from loosening, while reducing magnetic field leakage and energy loss.

[0028] As Figure 5 shown, the wire coil housing 1 includes a cover plate 101. A housing 102 is arranged below the cover plate 101. A cavity 103 is formed between the cover plate 101 and the housing 102. The cooling fan 3 is arranged in the cavity 103. A number of cylindrical holes 104 are distributed and arranged below the housing 102. The magnetic core 201 is arranged in the cylindrical holes 104. The lower end of the cylindrical hole 104 is threadedly connected with a coil disk lower cover 105. By using the coil disk lower cover 105 in cooperation with the cylindrical hole 104, the coil assembly 2 is fixed in the cylindrical hole 104.

[0029] As Figure 6 shown, a number of fan holes 1021 are distributed and arranged on the housing 102. The fan holes 1021 are arranged between the cooling fan 3 and the magnetic core 201. A partition layer 4 is arranged at the bottom of the coil disk lower cover 105. The coil disk lower cover 105 is provided with a number of first heat dissipation holes 1051. The partition layer 4 is provided with a number of second heat dissipation holes 401. The first heat dissipation holes 1051 correspond to the second heat dissipation holes 401. The wind generated by the cooling fan 3 can be transmitted to the magnetic core 201 through the fan holes 1021 and finally flows out through the first heat dissipation holes 1051 and the second heat dissipation holes 401, thereby performing heat dissipation operation on the coil assembly 2. Among them, the partition layer 4 is made of foamed silica gel strip, which can play the role of improving heat dissipation performance and protecting the magnetic core. The PM-type magnetic core with high magnetic permeability will generate a large amount of heat under high-frequency operation. If these heats cannot be dissipated in time, it may lead to a decline in the performance of the magnetic core or even damage. And the foamed silica gel strip has good heat conduction performance, which can effectively transfer the heat generated by the magnetic core to the bottle mouth to be heated, while keeping the magnetic core working within the normal temperature range and avoiding performance decline or damage caused by overheating.

[0030] A number of first fixing holes 1011 are distributed and arranged on the cover plate 101. A number of second fixing holes 1031 are distributed and arranged in the cavity 103. The first fixing holes 1011 correspond to the second fixing holes 1031. Screws are used to pass through the first fixing holes 1011 and the second fixing holes 1031, thereby fixing the cover plate 101 and the housing 102 together.

[0031] On both sides of the housing 102, mounting plates 1022 extend outward. A number of adjustment holes 1023 are provided on the mounting plates 1022. By using screws to pass through the housing 102, the housing 102 can be mounted on an external device. The adjustment holes 1023 are elliptical in shape and have a certain adjustment function, enabling the screws to move correspondingly on the adjustment holes 1023 according to the installation position and be fixed.

[0032] Working principle: Mount the wire reel housing 1 on the production line. When the mouth of a plastic bottle is conveyed to the lower part of the partition layer 4, the electromagnetic induction principle is utilized to generate eddy currents in the aluminum foil of the bottle mouth, causing the lower layer of the aluminum foil to melt with the plastic or the mouth of the PP or PE bottle, completing the sealing operation, and thus realizing the efficient operation of the plastic bottle sealer.

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

Claims

1. An induction heating coil structure for an electromagnetic sealing machine, characterized in that, It includes a coil reel housing (1), in which several cooling fans (3) are distributively arranged. Below the cooling fans (3), there is a coil assembly (2). The coil assembly (2) includes a magnetic core (201), in which an electromagnetic coil (202) is arranged. In the middle of the magnetic core (201), a cylinder (2011) protrudes outward. The electromagnetic coil (202) is evenly wound around the cylinder (2011).

2. The induction heating coil structure of the electromagnetic sealing machine according to claim 1, characterized in that, The magnetic core (201) is a PM type magnetic core with high magnetic permeability. On both sides of the magnetic core (201), semi-surrounding areas extend outward, and the electromagnetic coil (202) is arranged in the semi-surrounding areas.

3. The induction heating coil structure of the electromagnetic sealing machine according to claim 1, wherein The coil reel housing (1) includes a cover plate (101). Below the cover plate (101), there is a housing (102). A cavity (103) is formed between the cover plate (101) and the housing (102), and the cooling fans (3) are arranged in the cavity (103).

4. The induction heating coil structure of the electromagnetic sealer according to claim 3, characterized in that, Below the housing (102), several cylindrical hole positions (104) are distributively arranged. The magnetic core (201) is arranged in the cylindrical hole positions (104), and a coil reel lower cover (105) is threadedly connected to the lower ends of the cylindrical hole positions (104).

5. The electromagnetic sealer induction heating coil structure according to claim 4, characterized in that, The housing (102) is distributively provided with several fan holes (1021), and the fan holes (1021) are arranged between the cooling fans (3) and the magnetic core (201).

6. The induction heating coil structure of the electromagnetic sealer according to claim 4, characterized in that At the bottom of the coil reel lower cover (105), there is a partition layer (4) made of foamed silica gel. The coil reel lower cover (105) is provided with several first heat dissipation holes (1051), and the partition layer (4) is provided with several second heat dissipation holes (401). The first heat dissipation holes (1051) correspond to the second heat dissipation holes (401).

7. The induction heating coil structure of the electromagnetic sealer according to claim 3, characterized in that, The cover plate (101) is distributively provided with several first fixing holes (1011), and in the cavity (103), several second fixing holes (1031) are distributively arranged. The first fixing holes (1011) correspond to the second fixing holes (1031).

8. The induction heating coil structure of the electromagnetic sealer according to claim 3, characterized in that, On both sides of the housing (102), mounting plates (1022) extend outward, and the mounting plates (1022) are provided with several adjusting holes (1023).

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