High-frequency induction heating device for pin header

Abstract

A pin header high-frequency induction heating device comprises a heating box, a high-frequency heating mechanism, a lifting mechanism, an incoming material detection mechanism, a temperature detection mechanism and a main controller, a feeding hole and a discharging hole are formed in the two opposite side walls of the heating box, and a pin header moving channel is formed between the feeding hole and the discharging hole; the high-frequency heating mechanism comprises a high-frequency heating machine arranged on the outer side of the heating box, a connector located in the heating box and electrically connected with the high-frequency heating machine, and an annular induction coil electrically connected with the connector and located beside the pin header moving channel. The lifting mechanism is installed on the inner surface of the heating box, and the movable end of the lifting mechanism is fixedly connected with the connector; the incoming material detection mechanism is installed on the inner surface of the heating box and is adjacent to the feeding hole. The detection end of the incoming material detection mechanism corresponds to the pin header moving channel. The temperature detection mechanism is arranged in the heating box, and the detection end corresponds to the annular induction coil; the main controller is arranged on the outer side of the heating box and electrically connected with the high-frequency heating machine, the incoming material detection mechanism and the temperature detection mechanism.

Description

TECHNICAL FIELD

[0001] The utility model relates to connector technical field especially, and it is a kind of row pin high-frequency induction heating device. BACKGROUND

[0002] Row pin is mainly used in the PCB circuit board of electronic, electric appliance, instrument and other equipment, its function is to bridge between circuit is blocked or isolated, to realize the transmission of current or signal.Row pin is generally used in pairs with row female, wire end and other connectors, its surface is plated with nickel layer and tin layer, improves the conductivity of row pin, ensures the stability and reliability of current transmission, improves the anti-oxidation, corrosion resistance, wear resistance and other properties of row pin, prolongs the service life of row pin, and improves the surface finish of row pin, reduces the friction when row pin is plugged.However, due to the limitation of nickel layer and tin layer plating process, the firmness of nickel layer and tin layer on the surface of row pin is insufficient, tin layer is easy to fall off from nickel layer in the process of using row pin, which causes the conductivity of row pin to decrease, the surface finish and other surface properties of row pin to decrease synchronously, the stability and reliability of row pin to decrease, the service life of row pin to shorten, and the plugging difficulty of row pin to increase. SUMMARY

[0003] Therefore, it is necessary to provide a row pin high-frequency induction heating device to solve the above problems, which heats the row pin, so that the tin layer on the surface of the row pin melts and fuses with the nickel layer after being heated, to avoid the problem of decreasing conductivity, surface finish and other surface properties caused by tin layer falling off, to ensure stable and reliable transmission of current, to prolong the service life of row pin, and to reduce the plugging difficulty of row pin.

[0004] A row pin high-frequency induction heating device, comprising:

[0005] A heating box, one side wall of the heating box is provided with an inlet hole communicated with the inner cavity of the heating box and used for penetrating the row pin to be heated, and the other side wall of the heating box is provided with an outlet hole communicated with the inner cavity of the heating box and used for penetrating the heated row pin, the inlet hole and the outlet hole are oppositely arranged, and a row pin moving channel is formed between the inlet hole and the outlet hole in the heating box;

[0006] A high-frequency heating mechanism, the high-frequency heating mechanism comprises a high-frequency heating machine arranged on the outer side of the heating box, a connector accommodated in the heating box and electrically connected with the high-frequency heating machine, and an annular induction coil fixed on the connector and electrically connected with the connector, the annular induction coil is located beside the row pin moving channel;

[0007] A lifting mechanism, the lifting mechanism is installed on the inner surface of the heating box, and the movable end of the lifting mechanism is fixedly connected with the connector to drive the connector to lift;

[0008] A material detecting mechanism is installed on the inner surface of the heating box and adjacent to the feeding hole, and the detecting end of the material detecting mechanism corresponds to the needle moving channel;

[0009] A temperature detecting mechanism is arranged in the heating box, and the detecting end of the temperature detecting mechanism corresponds to the annular induction coil and detects the heating temperature of the needle;

[0010] A main controller is arranged outside the heating box and electrically connected with the high-frequency heating machine, the material detecting mechanism and the temperature detecting mechanism.

[0011] In one of the embodiments, the heating box comprises a bottom plate, left and right side plates oppositely arranged and fixed on both sides of the bottom plate, a back plate arranged on the back side of the bottom plate and fixedly connected with the bottom plate and the left and right side plates, respectively, and a top plate arranged above the bottom plate and fixedly connected with the left and right side plates and the back plate, respectively, wherein the first inclined surface is arranged on the top of the left side plate at the position facing away from the back plate, the second inclined surface is arranged on the top of the right side plate at the position facing away from the back plate, and the width of the top plate is smaller than that of the bottom plate.

[0012] In one of the embodiments, the lifting mechanism comprises a mounting box fixed on the bottom plate, a first bevel gear and a second bevel gear accommodated in the mounting box, a driving rod penetrating the sidewall of the mounting box and drivingly connected with the first bevel gear, a knob fixed on one end of the driving rod outside the mounting box and driving the rotation of the driving rod and the first bevel gear, a lead screw penetrating the top wall of the mounting box and fixedly connected with the second bevel gear, a lifting block threadedly matched with the lead screw and sleeved on the lead screw, two guide rods oppositely arranged on both sides of the lead screw and penetrating the lifting block, the guide rods being fixedly connected with the mounting box, the lead screw and the guide rods extending along the height direction of the heating box, the lifting block being fixedly connected with the connector, the first bevel gear being engaged with the second bevel gear, and the central axis of the first bevel gear being perpendicular to the central axis of the second bevel gear.

[0013] In one of the embodiments, the outside of the mounting box is provided with a support plate fixedly connected with the mounting box, a penetrating hole is formed in the support plate, and a bearing is arranged in the penetrating hole, the driving rod penetrating the bearing and rotationally matched with the bearing.

[0014] In one of the embodiments, the lifting mechanism further comprises a mounting plate fixed on the top plate, the top of the guide rod penetrating the mounting plate and rotationally matched with the mounting plate, and the top of the lead screw penetrating the mounting plate and rotationally matched with the mounting plate.

[0015] In one of the embodiments, the material detecting mechanism is a reflection type photoelectric sensor or a reflection type optical fiber sensor.

[0016] In one of the embodiments, the temperature detecting mechanism is an infrared temperature detector.

[0017] In one embodiment, the main controller is a PLC controller or a single chip microcomputer.

[0018] In one embodiment, the row pin high-frequency induction heating device further comprises an industrial water chiller arranged outside the heating box and used for cooling the high-frequency heating machine, and the industrial water chiller is electrically connected with the main controller.

[0019] In one embodiment, the row pin high-frequency induction heating device further comprises an electric control box, the electric control box is internally provided with a power supply, and the main controller is accommodated in the electric control box and electrically connected with the power supply.

[0020] The row pin high-frequency induction heating device is implemented, the row pin is heated by the high-frequency heating machine, when the high-frequency heating machine works, the high-frequency generator in the high-frequency heating machine generates high-frequency electromagnetic waves, when the electromagnetic waves pass through the annular induction coil, eddy current is generated in the row pin beside the annular induction coil, the eddy current flows in the row pin and collides with atoms in the tin layer and the nickel layer, and then heat is generated, so that the tin layer is rapidly heated and melted, so that the tin layer and the nickel layer are fused, the tin layer is not easy to fall off from the nickel layer, the stability of the row pin conductive performance is ensured, the current can be stably and reliably transmitted through the row pin when the row pin is used, meanwhile, the oxidation resistance, corrosion resistance and wear resistance of the row pin are not affected, which is beneficial to prolong the service life of the row pin, the row pin surface has high smoothness, and the plugging difficulty of the row pin is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 FIG. 1 is a structural schematic view of a row pin high-frequency induction heating device in one embodiment of the utility model;

[0022] Figure 2 FIG. 2 is a structural schematic view of a heating box and internal components combined in one embodiment of the utility model;

[0023] Figure 3 FIG. 3 is a structural schematic view of the heating box in one embodiment of the utility model;

[0024] Figure 4 FIG. 4 is a structural schematic view of the heating box in one embodiment of the utility model; Figure 2 FIG. 5 is a partial enlarged structural schematic view of part A in the embodiment shown in FIG. 4. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned purpose, features and advantages of the utility model more obvious and easy to understand, the specific implementation of the utility model is explained in detail below in combination with the drawings. In the following description, a lot of specific details are set forth in order to fully understand the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0026] Please combine Figures 1-4The utility model discloses a kind of needle arranging high-frequency induction heating devices 10, the needle arranging high-frequency induction heating device 10 includes heating box 100, high-frequency heating mechanism 200, lifting mechanism 300, incoming material detection mechanism 400, temperature detection mechanism 500 and main controller (not shown in drawing).Heating box 100 is used to provide needle arranging heating place, the side wall of heating box 100 is opened with the feeding hole 110 for being communicated with the inner cavity of heating box 100 and being used to be inserted into the needle to be heated, the other side wall of heating box 100 is opened with the discharge hole 120 for being communicated with the inner cavity of heating box 100 and being used to be inserted into the needle after heating, the feeding hole 110 is oppositely arranged with the discharge hole 120, and heating box 100 is formed between the feeding hole 110 and the discharge hole 120 in the needle arranging moving channel.In the embodiment, the feeding hole 110 and the discharge hole 120 are opened on the two opposite side walls of heating box 100, the needle to be heated is transmitted in the mode that a plurality of needles are arranged side by side and are linked into needle belt 20, the needle belt 20 is entered into the inner cavity of heating box 100 via the feeding hole 110 of one side wall of heating box 100 under the traction of external transmission equipment, and is inserted out via the discharge hole 120 of the other side wall of heating box 100 after being heated by high-frequency heating mechanism 200. High-frequency heating mechanism 200 is used to provide the energy source for heating needle, and high-frequency heating mechanism 200 includes high-frequency heating machine 210 arranged outside heating box 100, connector 220 accommodated in heating box 100 and electrically connected with high-frequency heating machine 210, annular induction coil 230 fixed on connector 220 and electrically connected with connector 220, and annular induction coil 230 is located on the side of needle arranging moving channel. In the embodiment, high-frequency heating machine 210 is connected with connector 220 through feeder. High-frequency heating machine 210 is also called high-frequency induction heating machine, and high-frequency generator (oscillator) is arranged in high-frequency heating machine 210. When high-frequency generator works, it can convert commercial power (usually 50 / 60Hz alternating current) into high-frequency alternating current (several thousand to several million Hz), and then generate high-frequency electromagnetic wave. The high-frequency electromagnetic wave is sequentially transmitted to annular induction coil 230 via feeder 240 and connector 220. When annular induction coil 230 is provided with metal parts, high-frequency electromagnetic wave will generate eddy current in the metal parts. Eddy current flows in the metal and collides with metal atoms, thereby generating heat to rapidly heat the metal to achieve the purpose of heating the metal. Lifting mechanism 300 is used to adjust the heating height of high-frequency heating machine 210 to needle, and lifting mechanism 300 is installed on the inner surface of heating box 100. The movable end of lifting mechanism 300 is fixedly connected with connector 220 to drive connector 220 to lift, so as to adjust the height of connector 220 and annular induction coil 230, to adapt to the height of needle, to achieve the purpose of adjusting the heating height of high-frequency heating machine 210 to needle.The incoming material detection mechanism 400 is arranged on the inner surface of the heating box 100 and adjacent to the feeding hole 110, and the detection end of the incoming material detection mechanism 400 corresponds to the pin moving channel. The temperature detection mechanism 500 is arranged in the heating box 100 and detects the temperature of the pins during heating. The detection end of the temperature detection mechanism 500 corresponds to the annular induction coil 230. Preferably, the temperature detection mechanism 500 is an infrared temperature detector. The main controller is arranged outside the heating box 100 and is electrically connected with the high-frequency heating machine 210, the incoming material detection mechanism 400 and the temperature detection mechanism 500. The main controller controls the high-frequency heating machine 210 to work according to the signals sent by the incoming material detection mechanism 400 and the temperature detection mechanism 500, so as to heat the pins. Preferably, the main controller is a PLC controller or a single-chip microcomputer.

[0027] During the working process of the pin high-frequency induction heating device 10, when the incoming material detection mechanism 400 detects that the pin strip 20 enters the pin moving channel, the incoming material detection mechanism 400 sends an electrical signal to the main controller, and the main controller controls the high-frequency heating machine 210 to work, so that the high-frequency electromagnetic waves generated by the high-frequency heating machine 210 form an eddy current in the pins when passing through the annular induction coil 230, and then the metal atoms in the pins collide and generate heat under the action of the eddy current, so as to heat the pins and melt the tin layer. In this embodiment, the working parameters of the high-frequency heating machine 210, such as voltage or current, can be controlled to control the heating temperature of the pins, so that the heating temperature of the pins reaches the melting temperature of the tin layer, so that the tin layer is fused with the nickel layer and firmly adheres to the surface of the nickel layer. During the heating of the pins, the temperature detection mechanism 500 monitors the temperature of the pins (i.e. the heating temperature of the pins by the high-frequency heating machine 210) in real time and sends signals to the main controller, so as to monitor the heating temperature of the pins. The main controller controls the external device (such as an alarm) to work according to the received temperature signal, or sends the received temperature signal to a display device, so that the working personnel can know the heating temperature of the pins in real time, and the working personnel can quickly respond when the heating temperature of the pins is too high, so as to avoid damage to the pins due to overheating.

[0028] In an embodiment, the heating box 100 comprises a bottom plate 130, a left side plate 140 and a right side plate 150 oppositely arranged and fixed on both sides of the bottom plate 130, a back plate 160 located at the back side of the bottom plate 130 and fixedly connected with the bottom plate 130 and the left side plate 140 and the right side plate 150 respectively, a top plate 170 located above the bottom plate 130 and fixedly connected with the left side plate 140 and the right side plate 150 and the back plate 160 respectively, a first inclined surface 141 provided at the top of the left side plate 140 and facing away from the back plate 160, a second inclined surface 151 provided at the top of the right side plate 150 and facing away from the back plate 160, and the width of the top plate 170 is less than the width of the bottom plate 130. In this embodiment, the front side of the top plate 170 (the side of the top plate 170 facing away from the back plate 160), the first inclined surface 141, the second inclined surface 151, the front side of the bottom plate 130 (the side of the bottom plate 130 facing away from the back plate 160), the front side of the left side plate 140 (the side of the left side plate 140 facing away from the back plate 160), and the front side of the right side plate 150 (the side of the right side plate 150 facing away from the back plate 160) together form an operation opening located at the front side of the heating box 100. The operation opening provides a channel for the operator to operate the corresponding devices in the heating box 100, and also serves to discharge heat from the heating box 100 to prevent the remaining components in the heating box 100 from being damaged due to overheating, thereby prolonging the service life of the pin array high-frequency induction heating device 10. By providing the first inclined surface and the second inclined surface, on the one hand, it is convenient to observe the heating condition of the pin array and adjust the height of the connector and the annular induction coil, and on the other hand, it can prevent the operator from being injured at the corner part of the top of the left side plate and the right side plate, thereby improving the operation safety.

[0029] Further, in this embodiment, the feeding hole 110 is provided on the left side plate 140, the discharging hole 120 is provided on the right side plate 150, and a wire threading gap 171 for threading the feeder 240 is provided on the top plate 170, so as to reduce the installation difficulty of the connector 220 and the assembly difficulty of the connector 220 and the feeder 240. A plurality of heat dissipation holes 180 are provided on the back plate 160, which can be strip-shaped holes, circular holes, elliptical holes, regular pentagonal holes, regular hexagonal holes or other regular polygonal holes. By providing the heat dissipation holes 180 on the back plate 160, the heat dissipation holes 180 can form a gas convection channel together with the operation opening, so as to quickly guide the heat in the heating box 100 out.

[0030] In an embodiment, the lifting mechanism 300 comprises a mounting box 310 fixed on the bottom plate 130, a first bevel gear and a second bevel gear accommodated in the mounting box 310, a driving rod 320 penetrating the sidewall of the mounting box 310 and drivingly connected with the first bevel gear, a knob 330 fixed on one end of the driving rod 320 outside the mounting box 310 and driving the driving rod 320 and the first bevel gear to rotate, a lead screw 340 penetrating the top wall of the mounting box 310 and fixedly connected with the second bevel gear, a lifting block 350 sleeved on the lead screw 340 and threadedly matched with the lead screw 340, two guide rods 360 oppositely arranged on both sides of the lead screw 340 and penetrating the lifting block 350, the guide rods 360 being fixedly connected with the mounting box 310, the lead screw 340 and the guide rods 360 extending along the height direction of the heating box 100, the lifting block 350 being fixedly connected with the connector 220, the first bevel gear being engaged with the second bevel gear, and the central axis of the first bevel gear being perpendicular to the central axis of the second bevel gear. In this embodiment, the first bevel gear and the second bevel gear are both 45° bevel gears, and through the mutual engagement of the first bevel gear and the second bevel gear, the rotation of the driving rod 320 arranged in the horizontal direction can be converted into the rotation of the lead screw 340 arranged in the vertical direction, so as to realize the change of motion. The knob 330 is provided with anti-skid stripes to avoid the slipping phenomenon during the rotation of the knob 330. In the action process of the lifting mechanism 300, through the rotation of the knob 330, the knob 330 drives the driving rod 320 and the first bevel gear at the end of the driving rod 320 to rotate, and then through the meshing action between the first bevel gear and the second bevel gear, the second bevel gear drives the lead screw 340 to rotate. In this process, since the lifting block 350 is threadedly connected with the lead screw 340 and the lifting block 350 is constrained by the guide rods 360 on both sides thereof, the rotation freedom of the lifting block 350 is limited, that is, the guide rods 360 on both sides of the lifting block 350 jointly limit the rotation of the lifting block 350. Therefore, the lifting block 350 will be lifted along the length direction of the lead screw 340 under the action of the lead screw 340, and simultaneously drives the connector 220 to move along the length direction of the lead screw 340, so as to achieve the purpose of adjusting the height of the connector 220.

[0031] Further, in the embodiment, the outer side of the mounting box 310 is provided with a support plate 311 fixedly connected with the mounting box 310, a through hole is formed in the support plate 311, and a bearing is arranged in the through hole. The driving rod 320 penetrates through the bearing and is rotationally connected with the bearing. The support plate 311 is used for supporting the driving rod 320, so as to reduce the shaking of the driving rod 320 during rotation. The bearing is used for reducing the friction between the driving rod 320 and the support plate 311 during rotation, and further improves the stability of the rotation of the driving rod 320. In addition, in the embodiment, the lifting mechanism 300 further comprises a support shaft fixedly connected with the first bevel gear and rotationally arranged on the mounting box 310. The support shaft is coaxially arranged with the first bevel gear. In this way, the first bevel gear is supported by the support shaft and the driving rod 320, so as to improve the stability of the arrangement of the first bevel gear and the reliability of the transmission between the first bevel gear and the second bevel gear. In order to improve the stability of the installation of the lead screw 340 and the guide rod 360, in the embodiment, the lifting mechanism 300 further comprises a mounting plate 370 fixedly arranged on the top plate 170. The top of the guide rod 360 penetrates through the mounting plate 370 and is rotationally connected with the mounting plate 370. The top of the lead screw 340 penetrates through the mounting plate 370 and is rotationally connected with the mounting plate 370. In this way, the two ends of the guide rod 360 are respectively limited by the mounting box 310 and the mounting plate 370. The two ends of the lead screw 340 are limited by the mounting plate 370 and the second bevel gear. The shaking of the lead screw 340 and the guide rod 360 is prevented. The connector 220 always rises and falls along the height direction of the heating box 100, so as to ensure the reliability of the position adjustment of the connector 220.

[0032] In another embodiment, the lifting mechanism 300 can further comprise a guide rod and a sliding block. The two ends of the guide rod are respectively fixedly connected with the top plate 170 and the bottom plate 130 of the heating box 100. A guide groove extending along the length direction of the guide rod is formed in the guide rod. A limiting groove extending along the length direction of the guide rod is formed in the middle of the guide groove. The sliding block is slidingly embedded in the guide groove and is fixedly connected with the connector 220. During the height adjustment of the connector 220, the sliding block can be pulled to a preset height on the guide rod along the guide groove. Then, the sliding block is locked by a locking screw penetrating through the sliding block and inserted into the limiting groove, so as to prevent the sliding block from sliding in the guide groove. In this way, the position adjustment of the connector 220 is realized. Of course, in other embodiments, other manual adjustment lifting mechanisms 300 commonly used in the industry can be used to replace the above lifting mechanism 300, so as to realize the fine adjustment of the height of the connector 220.

[0033] In an embodiment, the incoming material detection mechanism 400 is a reflection type photoelectric sensor or a reflection type optical fiber sensor. The reflection type photoelectric sensor generally consists of a transmitter and a receiver, which are placed opposite to each other. The light is directly transmitted from the transmitter to the receiver. When the pin strip belt 20 passes between the transmitter and the receiver, the light emitted by the transmitter is blocked by the pin strip belt 20, so that the receiver cannot normally receive the signal. If the receiver does not detect the light signal within a preset time, it is determined that the pin strip belt 20 has entered the pin strip moving channel. The reflection type optical fiber sensor consists of a transmitting unit and a receiving unit. The transmitting unit and the receiving unit are connected by an optical fiber or an optical pipe. After the transmitting unit emits a light beam, when the light beam irradiates on an object (the pin strip belt 20), part of the light beam will be reflected back to the receiving unit. The receiving unit receives the reflected light beam and sends a signal to the external control system. The control system determines the position, size, speed, and other information of the object according to the received signal. Preferably, in the present embodiment, the incoming material detection mechanism 400 is a reflection type photoelectric sensor. Of course, the incoming material detection mechanism 400 can also use other incoming material detection devices commonly used in the industry. For example, the incoming material detection mechanism 400 can be a CCD (charge coupled device) camera. The CCD camera can transmit the image signals collected in the heating box 100 to an external image processing device, and further transmit the information processed by the image processing device to the main controller. In this way, whether the pin strip belt 20 enters the heating box 100 is determined by image recognition, so as to start the high-frequency heating machine 210.

[0034] In addition, in an embodiment, the pin high-frequency induction heating device 10 further comprises an industrial water chiller 600 arranged outside the heating box 100 and used for cooling the high-frequency heating machine 210. The industrial water chiller 600 is electrically connected with the main controller. By arranging the industrial water chiller 600, the heating electric appliance inside the high-frequency heating machine 210 can be cooled during the heating of the pin strip by the high-frequency heating machine 210, so as to avoid damage caused by overheating of the high-frequency heating machine 210. The pin high-frequency induction heating device 10 further comprises an electric control box 700. A power supply is arranged in the electric control box 700. The main controller is accommodated in the electric control box 700 and is electrically connected with the power supply. In addition, the outer surface of the electric control box 700 is further provided with a display screen 710 electrically connected with the main controller. In this way, after receiving the signal sent by the temperature detection mechanism 500, the main controller displays the pin heating temperature on the display screen 710, so that the operating personnel can know the pin heating condition in real time.

[0035] It should be noted that in the embodiment, the row pin high-frequency induction heating device 10 includes two high-frequency heating machines 210, two connectors 220 are arranged side by side in the heating box 100, the two connectors 220 are electrically connected to the two high-frequency heating machines 210 one by one through the feed lines 240 penetrating the top plate 170 of the heating box 100, an annular induction coil 230 is installed on each connector 220, and the height of each connector 220 is adjusted through an independent lifting mechanism 300, a temperature detection mechanism 500 and a material detection mechanism 400 are arranged on the side of each connector 220, so that the row pin ribbon 20 can be heated by the two high-frequency heating machines 210 at the same time, so as to improve the heating efficiency of the row pin ribbon 20.

[0036] The row pin high-frequency induction heating device 10 is implemented, the row pin is heated by the high-frequency heating machine 210, when the high-frequency heating machine 210 works, the high-frequency generator in the high-frequency heating machine 210 generates high-frequency electromagnetic waves, when the electromagnetic waves pass through the annular induction coil 230, eddy current is generated in the row pin beside the annular induction coil 230, the eddy current flows in the row pin and collides with the atoms in the tin layer and the nickel layer, and then heat is generated, so that the tin layer is rapidly heated and melted, so that the tin layer and the nickel layer are fused, the tin layer is not easy to fall off from the nickel layer, the stability of the row pin conductive performance is ensured, the current can be stably and reliably transmitted through the row pin when the row pin is used, meanwhile, the oxidation resistance, corrosion resistance and wear resistance of the row pin are not affected, which is beneficial to prolong the service life of the row pin, the surface finish of the row pin is high, and the plug difficulty of the row pin is reduced. In addition, the row pin high-frequency induction heating device 10 has the advantages of simple structure, fast and continuous heating of the row pin, uniform heating temperature, long service life, reduced energy consumption and production efficiency of the row pin, simple operation of the device, and easy control of the heating temperature and the heating time.

[0037] The technical features of the above-described embodiments can be combined arbitrarily, and in order to make the description simple, all possible combinations of the technical features in the above-described embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the description.

[0038] The above-described embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but it should not be understood as the limitation of the scope of the utility model patent. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A high-frequency induction heating device for pin arrays, characterized in that, The application relates to a high-frequency heating device for a row of needles. The high-frequency heating device comprises a high-frequency heating machine arranged outside a heating box, a connector accommodated in the heating box and electrically connected with the high-frequency heating machine, and a ring-shaped induction coil fixed on the connector and electrically connected with the connector, wherein the ring-shaped induction coil is arranged beside a moving channel of the row of needles. The device further comprises a lifting mechanism, a material detection mechanism, a temperature detection mechanism, and a main controller. The lifting mechanism is installed on the inner surface of the heating box and is fixedly connected with the connector at a movable end to drive the connector to lift. The material detection mechanism is installed on the inner surface of the heating box and is adjacent to the feeding hole. The temperature detection mechanism is arranged in the heating box and is arranged opposite to the ring-shaped induction coil to detect the heating temperature of the row of needles. The main controller is arranged outside the heating box and is electrically connected with the high-frequency heating machine, the material detection mechanism, and the temperature detection mechanism.

2. The row pin high frequency induction heating apparatus according to claim 1, wherein The heating box comprises a bottom plate, left and right side plates oppositely arranged and fixed on both sides of the bottom plate, a back plate arranged at the back side of the bottom plate and fixedly connected with the bottom plate and the left and right side plates, and a top plate arranged above the bottom plate and fixedly connected with the left and right side plates and the back plate.

3. The row pin high frequency induction heating apparatus according to claim 2, wherein The first inclined surface is arranged on the top of the left side plate and faces away from the back plate.

4. The row pin high frequency induction heating apparatus according to claim 3, wherein The second inclined surface is arranged on the top of the right side plate and faces away from the back plate.

5. The row pin high frequency induction heating apparatus according to claim 3, wherein The width of the top plate is smaller than that of the bottom plate.

6. The row pin high frequency induction heating apparatus according to claim 1, wherein The lifting mechanism comprises a mounting box fixed on the bottom plate, first and second bevel gears accommodated in the mounting box, a driving rod penetrating through the side wall of the mounting box and drivingly connected with the first bevel gear, a knob fixed on one end of the driving rod outside the mounting box and driving the rotation of the driving rod and the first bevel gear, a lead screw penetrating through the top wall of the mounting box and fixedly connected with the second bevel gear, a lifting block threadedly matched with the lead screw and sleeved on the lead screw, and two guide rods oppositely arranged on both sides of the lead screw and penetrating through the lifting block.

7. The row pin high frequency induction heating apparatus according to claim 1, wherein The guide rods are fixedly connected with the mounting box.

8. The row pin high frequency induction heating apparatus according to claim 1, wherein The lead screw and the guide rods extend along the height direction of the heating box. The lifting block is fixedly connected with the connector. The first bevel gear is engaged with the second bevel gear, and the central axis of the first bevel gear is perpendicular to the central axis of the second bevel gear. The outer side of the mounting box is provided with a support plate fixedly connected with the mounting box. The support plate is provided with a penetrating hole, and a bearing is arranged in the penetrating hole. The driving rod penetrates through the bearing and is rotationally matched with the bearing. The lifting mechanism further comprises a mounting plate fixed on the top plate. The top of the guide rod penetrates through the mounting plate and is rotationally matched with the mounting plate. The top of the lead screw penetrates through the mounting plate and is rotationally matched with the mounting plate. The material detection mechanism is a pair of photoelectric sensors or a pair of optical fiber sensors. The temperature detection mechanism is an infrared temperature detector. The main controller is a PLC controller or a single-chip microcomputer.

9. The row pin high frequency induction heating apparatus according to claim 1, wherein It also comprises an industrial water chiller outside the heating box and used for cooling the high-frequency heating machine, which is electrically connected with the main controller.

10. The row pin high frequency induction heating apparatus according to claim 1, wherein It also comprises an electric control box, which is internally provided with a power supply, and the main controller is accommodated in the electric control box and electrically connected with the power supply.

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