Induction coil heating device

Abstract

The present invention is an induction coil heating device, which is provided with an induction electromagnetic heating group, the induction electromagnetic heating group is provided with a coil channel, and is also provided with a working turntable, the working turntable can carry a plurality of screws to be processed through the coil channel in sequence, the induction electromagnetic heating group uses a high-frequency current to generate a high-frequency electromagnetic field at the coil channel, whereby the screws passing through will be heated due to electromagnetic action, and since only the part of the screw to be heated is located in the coil channel, and the high-frequency electromagnetic field can accurately focus on heating a specific part of the screw, the present invention can accurately heat only the threaded part to be heated, and after completion, another process can be entered, which has the advantages of being able to accurately heat and prevent the surface of the screw from being carbonized or charred, so as to maintain product quality.

Description

Technical Field

[0001] The present invention relates to a heating device, in particular to an induction coil heating device which utilizes electromagnetic to generate high temperature to heat a part of a workpiece. Background Art

[0002] In the prior art process of heating a workpiece, the heating device has various structural types. When heating, the heat source and the workpiece to be processed are usually brought close to each other to heat the workpiece. When this heating device is used to heat the workpiece, when it is used in the production and processing of screws, for example, when manufacturing screws with specific anti-leakage or anti-loosening functions, before applying glue to a specific part of the screw with threads, the screw is usually preheated or heated by a heating device before applying glue, so that the glue and the screw can have a more effective mutual bonding strength.

[0003] The heating process currently used is to pass the entire screw through a heating device. At this time, the heat source of the heating device heats the entire screw to increase the temperature. There are many types of existing heating devices. Whether it is a flat heating device or a ring-shaped heating device, they all preheat or heat the entire screw. Therefore, whether it is the rod body or the screw head and threaded part at both ends are heated to a certain high temperature at the same time. After the rod body and screw head of the screw are subjected to high heat, the appearance of the screw will have defects such as easy carbonization or charring. Summary of the invention

[0004] In view of the problems and shortcomings of the above-mentioned prior art that need to be improved, the induction coil heating device created by the present invention has a heating coil channel for the threaded portion of the screw to pass through, so only the threaded portion of each screw is heated in sequence and then coated, so that the surface of other parts of the screw will not be carbonized or charred, thereby improving the quality of the screw product.

[0005] In order to achieve the above-mentioned purpose, the technical means used by the present invention is to provide an induction coil heating device, which includes a working turntable and an induction electromagnetic heating group, which are respectively installed on a frame, and the working turntable can be driven by a motor installed on the frame. The working turntable is a disc and a plurality of fixtures are arranged at the periphery of the disc, and each of the fixtures carries a screw to be processed; the induction electromagnetic heating group is an elongated body, and a coil channel is arranged through the elongated body, and the coil channel is located relative to the action path of each of the fixtures. The induction electromagnetic heating group can pass a high-frequency current to generate a high-frequency electromagnetic field at the coil channel, and the threaded parts of each of the screws pass through the coil channel relatively.

[0006] In the induction coil heating device, the induction electromagnetic heating group is provided with at least two current conducting units, the two current conducting units are arranged at intervals, and the coil channel is located between the two current conducting units.

[0007] The induction coil heating device, wherein the induction electromagnetic heating group includes a first current conduction unit, a second current conduction unit and a third current conduction unit, the second current conduction unit is longer than the first current conduction unit and the third current conduction unit, the second current conduction unit is located at the inner ring position of the fixture action path, one end of the first current conduction unit and one end of the third current conduction unit are adjacent and located at the outer ring position of the fixture action path, and the coil channel is located between the second current conduction unit and the first current conduction unit and the third current conduction unit.

[0008] The induction coil heating device, wherein each current conduction unit has a body, a current conduction extension plate extends and protrudes from the side wall of the body, the end of the current conduction extension plate has a high-frequency electromagnetic field output end surface, and the high-frequency electromagnetic field output end surface between two spaced current conduction units is opposite and faces the coil channel.

[0009] The induction coil heating device described above, wherein the body of the first current conducting unit has a flow channel inside, one end of the first current conducting unit is connected to a liquid inlet pipe, the third current conducting unit has a flow channel inside, one end of the third current conducting unit is connected to a liquid outlet pipe; the body of the second current conducting unit has a flow channel inside, a connecting unit is connected between one end of the second current conducting unit and the other end of the first current conducting unit, another connecting unit is connected between the other end of the second current conducting unit and the other end of the third current conducting unit, the connecting unit has a flow channel inside, and the aforementioned flow channels are interconnected.

[0010] In the induction coil heating device, the induction electromagnetic heating group strip has an electromagnetic induction coil.

[0011] By using the technical means of the present invention, the screws to be heated can be transferred by the working turntable and when passing through the coil channel of the induction electromagnetic heating group, a high-frequency current is passed to generate a high-frequency electromagnetic field in the coil channel, so that the screws passing through will be heated due to the electromagnetic effect. Since only the part of the screw to be heated is located in the coil channel, and the high-frequency electromagnetic field can accurately focus on heating a specific part of the screw, the present invention can accurately heat only the threaded part to be heated, and proceed to the next process after the heating is completed. Since the heat energy is only heated at the thread, other parts of the screw are away from the high-frequency electromagnetic field and are not affected by the heat energy. In this way, carbonization or charring will not occur on the surface, and the screw has excellent quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the implementation status of the present invention.

[0013] Figure 2 It is a partial enlarged schematic diagram of the appearance of the present invention.

[0014] Figure 3 It is a partial cross-sectional schematic diagram of the present invention.

[0015] Figure 4 It is another partial cross-sectional schematic diagram of the present invention.

[0016] Description of reference numerals:

[0017] 10 working turntable 11 fixture

[0018] 110 screw 111 thread

[0019] 20 induction heating groups 200 coil channels

[0020] 201 liquid inlet pipe 202 liquid outlet pipe

[0021] 203 flow channel 21 first current conducting unit

[0022] 211 body 212 current conduction extension plate

[0023] 213 high frequency electromagnetic field output end surface 22 second current conduction unit

[0024] 221 body 222 current conduction extension plate

[0025] 223 high frequency electromagnetic field output end surface 23 third current conduction unit

[0026] 24 connection units 30 spraying groups

[0027] 31 nozzle 32 opening DETAILED DESCRIPTION

[0028] See also Figure 1 and Figure 2 As shown, the present invention is an induction coil heating device, which includes a working turntable 10 and an induction electromagnetic heating group 20. The working turntable 10 and the induction electromagnetic heating group 20 can be installed on a frame, which is a prior art and is not shown in the figure. The working turntable 10 is connected to the driving shaft of a motor, and the motor is arranged on the frame to drive the working turntable 10 to rotate. The working turntable 10 can be a disc, and a plurality of jigs 11 are arranged on the surface of the disc and at the periphery. Each of the jigs 11 can carry the screws 110 to be processed respectively, that is, the screws 110 to be processed can be sequentially transported from a feeding end to the corresponding jig 11, and leave the jig 11 sequentially from a discharging end after the processing is completed.

[0029] The induction electromagnetic heating group 20 can be a long strip and is arranged at the position of the action path of each fixture 11. The long strip is penetrated by a coil channel 200. The coil channel 200 is a heating zone, and its shape can be made into an arc shape according to the action path of the fixture 11. The long strip has an electromagnetic induction coil, and the induction electromagnetic heating group 20 uses a high-frequency current to generate a high-frequency electromagnetic field. The high-frequency electromagnetic field is formed at the coil channel 200, so that when the screw 110 to be processed passes through the high-frequency electromagnetic field, the positive electric field is activated by the electromagnetic action. The high-speed motion friction is generated by the induction electromagnetic heating group 20, and the high-frequency electromagnetic field is generated by passing a high-frequency current, and the structure of the long strip body of the induction electromagnetic heating group 20 with an electromagnetic induction coil is a prior art, so it is not shown in the drawings. When the part to be heated of each screw 110 passes through the coil channel 200, it can be heated. For example, the thread 111 of the screw 110 is the part to be heated, and the thread 111 of each screw 110 carried by the fixture 11 can pass through the coil channel 200 of the induction electromagnetic heating group 20 in sequence to be heated to a set temperature;

[0030] See also Figure 3 As shown, the induction electromagnetic heating group 20 uses a high-frequency current to generate a high-frequency electromagnetic field for heating. The structure is provided with at least two current conducting units, and the two current conducting units can be arranged at intervals. The coil channel 200 is located between the two current conducting units. As shown in one of the specific embodiments in the figure, it includes a first current conducting unit 21, a second current conducting unit 22 and a third current conducting unit 23, wherein the second current conducting unit 22 is longer than the first current conducting unit 21 and the third current conducting unit 23, the second current conducting unit 22 is located at the inner ring position of the action path of the fixture 11, one end of the first current conducting unit 21 and one end of the third current conducting unit 23 are adjacent and located at the outer ring position of the action path of the fixture 11, the end of the first current conducting unit 21 is connected to a liquid inlet pipe 201, and the end of the third current conducting unit 23 is connected to a liquid outlet pipe 202;

[0031] The first current conducting unit 21 has a body 211 and a current conducting extension plate 212 extending from the side wall of the body 211, and has a high-frequency electromagnetic field output end face 213 at the end. The body 211 has a flow channel 203 inside, and the flow channel 203 is connected to the liquid inlet pipe 201. The flow channel 203 and the liquid inlet pipe 201 can allow a fluid to pass through. The structure of the third current conducting unit 23 is the same as that of the first current conducting unit 21, and has a body, a flow channel located in the body, and a current conducting extension plate and a high-frequency electromagnetic field output end face protruding from the side wall of the body. The flow channel 203 of the third current conducting unit 23 is connected to the liquid outlet pipe 202. The flow channel 203 and the liquid outlet pipe 202 are connected so that a fluid can pass through, and the second current conducting unit 22 has a body 221 and a current conducting extension plate 222 extending from the side wall of the body 221, and has a high-frequency electromagnetic field output end face 223 at the end. The body 221 has a flow channel 203 inside for a fluid to pass through, and the coil channel 200 is located between the high-frequency electromagnetic field output end face 223 of the second current conducting unit 22 and the high-frequency electromagnetic field output end face 213 of the first current conducting unit 21 and the high-frequency electromagnetic field output end face of the third current conducting unit 23. The body of each of the above-mentioned current conducting units has the electromagnetic induction coil.

[0032] Furthermore, at least two connecting units 24 are further provided. The specific embodiment shown in the figure is provided with two connecting units 24, wherein two ends of one connecting unit 24 are respectively connected to the other end of the corresponding first current conducting unit 21 and one end of the second current conducting unit 22, and two ends of the other connecting unit 24 are respectively connected to the other end of the corresponding third current conducting unit 23 and the other end of the second current conducting unit 22, so that each current conducting unit can be combined and fixed on the frame.

[0033] Each of the connecting units 24 has a hollow flow channel inside, so that the hollow flow channel 203 of each current conducting unit and the hollow flow channel inside each connecting unit 24 can be interconnected to provide fluid passage. When the fluid passes through each current conducting unit and the flow channel 203 of the connecting unit 24, it is used to reduce the temperature of each current conducting unit generated by the high-frequency electromagnetic field, so as to stabilize the electromagnetic field so that it can be output stably.

[0034] See also Figure 4 As shown, after each screw 110 is heated to a set temperature by the induction electromagnetic heating group 20, it enters the spraying process. A spraying group 30 is provided on the frame. The spraying group 30 is a prior art, one end of which is a nozzle 31, and the nozzle 31 is aligned with the thread 111 of the screw 110, and the other end is an opening 32. The glue-coated colloid enters from the opening 32 and is then sprayed out from the nozzle 31. The sprayed colloid can adhere to the thread 111 of each screw 110.

[0035] Since the present invention uses an induction electromagnetic heating group to generate a high-frequency electromagnetic field through high-frequency current to heat each screw to be processed, a current-conducting extension plate is provided on the induction electromagnetic heating group to generate a high-frequency electromagnetic field coil channel for each screw to be processed to pass through. At this time, the high-frequency intensive electromagnetic field generated by the induction electromagnetic heating group can accurately focus and heat the threaded part of the screw to a set temperature for the next process. Since other parts of the screw are away from the high-frequency intensive electromagnetic field, carbonization or charring will not occur on the surface, and the finished screws can still maintain their product quality.

Claims

1. An induction coil heating device, characterized in that: include: A working turntable and an induction electromagnetic heating group are respectively installed on a frame, the working turntable can be driven by a motor installed on the frame, the working turntable is a disc and a plurality of jigs are arranged at the periphery of the disc, each of the jigs carries a screw to be processed; The induction electromagnetic heating group is a long strip, and a coil channel is provided through the long strip. The coil channel is located relative to the action path of each of the jigs. The induction electromagnetic heating group can pass a high-frequency current to generate a high-frequency electromagnetic field at the coil channel, and the threaded parts of each of the screws pass through the coil channel relatively. The induction electromagnetic heating group is provided with at least two current conducting units, the two current conducting units are arranged at intervals, and the coil channel is located between the two current conducting units; The induction electromagnetic heating group strip body has an electromagnetic induction coil.

2. The induction coil heating device according to claim 1, characterized in that: The induction electromagnetic heating group includes a first current conduction unit, a second current conduction unit and a third current conduction unit. The second current conduction unit is longer than the first current conduction unit and the third current conduction unit. The second current conduction unit is located at the inner ring position of the fixture action path. One end of the first current conduction unit and one end of the third current conduction unit are adjacent and located at the outer ring position of the fixture action path. The coil channel is located between the second current conduction unit and the first current conduction unit and the third current conduction unit.

3. The induction coil heating device according to claim 2, characterized in that: Each of the current conduction units has a main body, and a current conduction extension plate extends and protrudes from the side wall of the main body. The end of the current conduction extension plate has a high-frequency electromagnetic field output end surface, and the high-frequency electromagnetic field output end surface between two spaced current conduction units is opposite and faces the coil channel.

4. The induction coil heating device according to claim 3, characterized in that: The first current conducting unit has a flow channel inside its body, one end of which is connected to a liquid inlet pipe; the third current conducting unit has a flow channel inside its body, one end of which is connected to a liquid outlet pipe; the second current conducting unit has a flow channel inside its body, one end of which is connected to the other end of the first current conducting unit with a connecting unit, and another connecting unit is connected to the other end of the third current conducting unit with another connecting unit, the connecting unit has a flow channel inside, and the aforementioned flow channels are interconnected.

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