TWI669989B - Induction coil heating device - Google Patents

Abstract

The invention relates to 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 a working turntable is arranged, and the working turntable can carry a plurality of screws to be processed through the coil channel in sequence, The induction electromagnetic heating system uses a high-frequency current to generate a high-frequency electromagnetic field at the coil passage, whereby the screw passing through is heated by electromagnetic action, and since the screw only has a portion to be heated, it is located in the coil passage and has a high frequency. The electromagnetic field can accurately focus and heat the specific part of the screw. Therefore, the present invention can accurately heat only the screw portion to be heated, and can be further processed into another process, which can accurately heat and prevent the surface of the screw from being carbonized or burnt black. To maintain product quality.

Description

Induction coil heating device

The invention relates to a heating device, in particular to an induction coil heating device for heating a part of a workpiece by electromagnetic high temperature.

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, thereby heating the workpiece. This type of heating device is used to heat the workpiece. When it is used in the screw production process, for example, to manufacture a screw with a specific leak-proof or anti-loose effect, it is usually used to heat the specific part of the screw where the screw is applied. The device preheats or heats the screws and then applies the glue so that the glue and the screw can have a relatively effective mutual bonding strength.

The heating process currently used is to pass the whole screw through the heating device. At this time, the heat source of the heating device heats the whole screw to increase the temperature, and the existing heating device has various kinds, whether using a flat type heating device or using The annular type of heating device preheats or heats the whole of the screw. Therefore, the screw head and the threaded part of the rod body or both ends are simultaneously heated to a certain high temperature, the rod body and the screw head of the screw. After the part is subjected to high heat, there will be disadvantages such as easy carbonization or burnt black on the surface of the screw.

In view of the problems and shortcomings of the prior art mentioned above, the induction coil heating device of the present invention has a heating coil passage through which the threaded portion of the screw passes, because Therefore, only the threaded portions of the screws are sequentially heated and then coated, so that the surface of other parts of the screw does not generate carbonization or burnt black to improve the quality of the screw product.

In order to achieve the foregoing object, the technical means is to provide an induction coil heating device including a working turntable and an induction electromagnetic heating group and respectively mounted on a frame, which can be disposed on the frame. a motor is driven, the working turntable is a disc and is disposed at a periphery of the disc with a plurality of jigs, each of the jigs carrying a screw to be processed; the inductive electromagnetic heating group is a long strip, the strip The coil passage is disposed at a position of a movement path relative to each of the jigs, wherein the induction electromagnetic heating group is provided with at least two current conduction units, each of the current conduction units being spaced apart, the coil channel position Between each of the current conducting units, each of the current conducting units has a body, and the inside of the body has a first-class channel, and the flow channels of the current conducting units are connected to each other, and one end portion of the interconnecting flow channel is The inlet pipe is connected, and the other end is connected to a liquid outlet pipe, and the induction electromagnetic heating group can generate a high frequency at the coil channel by using a high frequency current Fields, each of the threaded portion of the screw relative to the coil through the passageway.

In the induction coil heating device, the induction electromagnetic heating group includes a first current conducting unit, a second current conducting unit and a third current conducting unit, the second current conducting unit having a length greater than the first current conducting unit and a third current conducting unit, wherein the second current conducting unit is located at an inner ring position of the moving path of the jig, and one end of the first current conducting unit is adjacent to an end of the third current conducting unit and is located at the inner ring position The outer loop position of the fixture moving path is located between the second current conducting unit and the first current conducting unit and the third current conducting unit.

In the induction coil heating device, each of the current conducting units protrudes from a sidewall surface of the body to protrude a current conducting extension plate, the end of the current conducting extension plate has a high frequency electromagnetic field output end face, and two spaced current conduction units The high frequency electromagnetic field output end face is opposite and facing the coil channel.

The induction coil heating device, wherein one end of the flow path of the first current conducting unit is connected to an inlet pipe, and one end of the flow path of the third current conducting unit is connected to an outlet pipe; the second a connecting unit is connected between one end of the flow path of the current conducting unit and the other end of the flow path of the first current conducting unit, and the other end is connected between the other end and the other end of the flow path of the third current conducting unit The connection is provided with another connection unit, which has a first-class track inside.

The induction coil heating device, wherein the inductive electromagnetic heating group elongated body has an electromagnetic induction coil.

The use of the technical means of the present invention can transfer the screw to be heated by the working turntable and, when passing through the coil passage of the induction electromagnetic heating group, generate a high-frequency electromagnetic field at the coil passage by using a high-frequency current. The passing screw is heated by electromagnetic action, and since the screw only has a portion to be heated located in the coil passage, and the high-frequency electromagnetic field can accurately focus and heat the specific portion of the screw, the present invention can be accurately applied only to the thread portion to be heated. The ground is heated, and after the heating is completed, the next process is performed. Since the heat is only heated at the thread, the other parts of the screw are not affected by the heat energy away from the high-frequency electromagnetic field, so that the surface will not be carbonized or burnt black, and the screw Has a better quality.

10‧‧‧Working turntable

11‧‧‧ fixture

110‧‧‧ screws

111‧‧‧Thread

20‧‧‧Induction electromagnetic heating group

200‧‧‧ coil channel

201‧‧‧Inlet tube

202‧‧‧Draining tube

203‧‧‧ flow path

21‧‧‧First current conduction unit

211‧‧‧ body

212‧‧‧Current conduction extension board

213‧‧‧High frequency electromagnetic field output end face

22‧‧‧Second current conduction unit

221‧‧‧ Ontology

222‧‧‧Current conduction extension board

223‧‧‧High frequency electromagnetic field output end face

23‧‧‧ Third current conduction unit

24‧‧‧ Connection unit

30‧‧‧ Spraying group

31‧‧‧Nozzles

32‧‧‧ openings

Figure 1 is a schematic view showing the state of implementation of the present invention.

Figure 2 is an enlarged schematic view of a portion of the appearance of the present invention.

Figure 3 is a partial cross-sectional view of the present invention.

Figure 4 is a cross-sectional view showing another part of the present invention.

Referring to FIG. 1 and FIG. 2, the present invention is an induction coil heating device including a working turntable 10 and an inductive electromagnetic heating group 20, and the working turntable 10 and the inductive electromagnetic heating group 20 can be mounted on a frame. The rack is prior art and is not shown. The working turntable 10 is coupled to a drive shaft of a motor. The motor is disposed on the frame to drive the work turntable 10 to rotate. The work turntable 10 can be a disc having a plurality of surfaces on the periphery of the disc. The jig 11 , each of the jigs 11 can respectively carry the screws 110 to be processed, that is, the screws 110 to be processed can be sequentially transported from a feeding end to the corresponding jig 11 , and one after completion of processing The discharge end leaves the jig 11 in sequence.

The induction electromagnetic heating group 20 can be an elongated body and disposed at a moving path position of each of the jigs 11. The elongated body is provided with a coil passage 200. The coil passage 200 is a heating zone, and the shape thereof can be Corresponding to the moving path of the jig 11 , the arcuate body is formed in an arc shape, and the elongate body has an electromagnetic induction coil, and the inductive electromagnetic heating group 20 generates a high frequency electromagnetic field by using a high frequency current. Formed at the coil channel 200, the screw 110 to be processed is activated by a high-frequency electromagnetic field, activated by positive electromagnetic molecules under electromagnetic action and generates high-speed motion friction, thereby generating high-heat technology, and applying high-frequency current The structure of the high-frequency electromagnetic field and the induction electromagnetic heating group 20 strip having the electromagnetic induction coil is a prior art, so that it is not shown in the drawings, and when the portion of the screw 110 to be heated is passing through the coil passage 200, it can be performed. Heating, for example, the portion of the thread 111 of the screw 110 is the portion to be heated, and the portion of the thread 111 of the screw 110 carried by the jig 11 can sequentially pass through the induction electromagnetic heating group 2 The coil passage 200 of 0 is heated to a set temperature; as shown in FIG. 3, the induction electromagnetic heating group 20 uses a high-frequency electromagnetic field to generate heat by a high-frequency current, and is configured to have at least two The current conducting unit, the two current conducting units may be spaced apart, and the coil channel 200 is located between the two current conducting units. One of the specific embodiments shown in the figure 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 has a length greater than the first current. The conduction unit 21 and the third current conduction unit 23, the second current conduction unit 22 is located in the treatment The inner ring position of the first current conducting unit 21 is adjacent to one end of the third current conducting unit 23 and is located at an outer ring position of the moving path of the jig 11 , the first The end of the current conducting unit 21 is connected to an inlet pipe 201. The end of the third current conducting unit 23 is connected to an outlet pipe 202. The first current conducting unit 21 has a body 211 and a side of the body 211. A current conducting extension plate 212 is protruded from the wall surface, and a high-frequency electromagnetic field output end surface 213 is formed at the end. The body 211 has a first-class channel 203 inside, and the flow channel 203 is connected to the liquid inlet pipe 201, and the flow channel 203 and the inlet The liquid tube 201 is configured to pass a fluid. The third current conducting unit 23 has the same structure as the first current conducting unit 21, and has a body, a first-class channel in the body, and a current conducting extension protruding from the sidewall of the body. The plate and the high-frequency electromagnetic field output end face, 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 allowed to pass a fluid, and the second current conducting unit 22 has a body 221 And a current conducting extension plate 222 extending from the sidewall surface of the body 221, and having a high-frequency electromagnetic field output end surface 223 at the end portion, the body 221 has a first-class channel 203 for a fluid to pass therethrough, and the coil channel 200 is located at The high-frequency electromagnetic field output end surface 223 of the second current conducting unit 22 is between the high-frequency electromagnetic field output end surface 213 of the first current conducting unit 21 and the high-frequency electromagnetic field output end surface of the third current conducting unit 23, and each of the current conducting units The body has the electromagnetic induction coil.

Further, 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 corresponding first current conducting unit 21 One end portion and one end portion of the second current conducting unit 22, and both ends of the other connecting unit 24 are respectively connected to the other end portion of the corresponding third current conducting unit 23 and the other end portion of the second current conducting unit 22, and are used. Each of the current conducting units can be fixed to the frame in combination with each other.

Further, each of the connecting units 24 has a hollow flow channel therein, so that the hollow flow channel 203 of each of the current conducting units and the hollow flow channel inside each of the connecting units 24 can be electrically connected to each other, thereby providing a fluid. When the fluid passes through the current conduction cells and the flow channel 203 of the connection unit 24, the temperature of each of the current conduction cells due to the high frequency electromagnetic field is reduced to stably stabilize the electromagnetic field.

Referring to FIG. 4, after each of the screws 110 is heated to the set temperature by the induction electromagnetic heating group 20, the screwing process is performed, and a spray group 30 is provided on the frame. The spray group 30 is a prior art, one end of which is The portion is a nozzle 31. The nozzle 31 is aligned with the thread 111 facing the screw 110, and the other end is an opening 32. The glued gel enters the opening 32 and is ejected by the nozzle 31. The sprayed colloid can be attached to each of the nozzles 31. The thread 111 of the screw 110.

Since the invention uses the induction electromagnetic heating group to generate high frequency electromagnetic field by high frequency current to heat each screw to be processed, a current conduction extension plate is arranged on the induction electromagnetic heating group to generate a high frequency electromagnetic field coil channel for each to be processed. When the screw passes, the high-frequency dense electromagnetic field generated by the induction electromagnetic heating group can accurately focus and screw the screw portion of the screw to the set temperature for the next process, and the other parts of the screw are far away from the high-frequency dense electromagnetic field. The surface does not produce carbonization or burnt black, and the finished screws can still maintain the quality of their products.

Claims (5)

An induction coil heating device includes a working turntable and an induction electromagnetic heating group and is respectively mounted on a frame, and the working turntable can be driven by a motor disposed on the frame, the working turntable is a disc and a bit A plurality of jigs are disposed at a periphery of the disc, each of the jigs carrying a screw to be processed; the inductive electromagnetic heating group is a long strip body, and the strip body is provided with a coil passage, the coil passage is located opposite to a moving path position of each of the jigs, wherein the inductive electromagnetic heating group is provided with at least two current conducting units, each of the current conducting units being spaced apart, the coil channel being located between each of the current conducting units, each of the current conducting units Each has a body inside, and the inside of the body has a first-class channel, and the flow channels of the current conducting units are connected to each other, and one end of the interconnected flow channel is connected to a liquid inlet pipe, and the other end is connected to a liquid outlet pipe. The induction electromagnetic heating group can generate a high-frequency electromagnetic field at the coil channel by using a high-frequency current, and the threaded portions of the screws pass through the coil . The induction coil heating device of claim 1, wherein the induction electromagnetic heating group comprises a first current conducting unit, a second current conducting unit and a third current conducting unit, wherein the second current conducting unit has a length greater than the first a current conducting unit and a third current conducting unit, wherein the second current conducting unit is located at an inner ring position of the fixture moving path, and one end of the first current conducting unit is adjacent to one end of the third current conducting unit The coil channel is located between the second current conducting unit and the first current conducting unit and the third current conducting unit. The induction coil heating device of claim 2, wherein each of the current conducting units extends from a side wall surface of the body to protrude a current conducting extension plate, the end of the current conducting extension plate having a high frequency electromagnetic field output end face, two spaces The high frequency electromagnetic field output end faces between the current conducting units are opposite and facing the coil channel. The induction coil heating device of claim 3, wherein one end of the flow path of the first current conducting unit is connected to an inlet pipe, and one end of the flow path of the third current conducting unit is out a liquid pipe connection; a connecting unit is connected between one end of the flow path of the second current conducting unit and the other end of the flow path of the first current conducting unit, and the other end is connected to the flow path of the third current conducting unit Another connection unit is provided between the other ends, and the connection unit has a first-class track inside. The induction coil heating device of claim 4, wherein the inductive electromagnetic heating group elongated body has an electromagnetic induction coil.