Heating device for coaxial high frequency winding machine

Abstract

The application relates to a heating device for a coaxial line high-frequency winding machine and relates to the technical field of coaxial line heating, which comprises an oven, two end walls of the oven are provided with wire passing holes for the coaxial line to pass through the inside of the oven, the axes of the two wire passing holes coincide, a plurality of heating pipes are arranged in the oven, the heating pipes are parallel to the axes of the wire passing holes, all the heating pipes are uniformly and intervally distributed in the circumferential direction of the axes of the wire passing holes, and an air circulation mechanism is further arranged on the oven and used for making the air in the oven flow. The application has the effects of improving the heating uniformity of the outer wrapping tape of the coaxial line and improving the production quality of the coaxial line.

Description

Technical Field

[0001] This application relates to the field of coaxial cable heating technology, and in particular to a heating device for a coaxial cable high-frequency winding machine. Background Technology

[0002] Coaxial cable is a type of transmission line used to transmit radio frequency signals. During coaxial cable production, a layer of wrapping tape is wound around the outside of the cable. This wrapping tape is made of a thermoplastic material and requires a heating device to melt it. Traditional heating devices use heating tubes (such as heating tubes with inserted heating wires), but this method results in uneven heating and intermittent loosening of the wrapping tape, affecting the quality of the coaxial cable. Utility Model Content

[0003] In order to improve the heating uniformity of the outer wrapping tape of coaxial cables and enhance the production quality of coaxial cables, this application provides a heating device for a high-frequency winding machine for coaxial cables.

[0004] The heating device for a high-frequency winding machine using coaxial cable provided in this application adopts the following technical solution: A heating device for a coaxial high-frequency winding machine includes an oven. The oven has through holes on both end walls for the coaxial cable to pass through. The axes of the two through holes coincide. The oven contains a plurality of heating tubes, which are parallel to the axes of the through holes. All the heating tubes are evenly and spaced apart in the circumferential direction of the through hole axes. The oven is also equipped with an air circulation mechanism for circulating air inside the oven.

[0005] By adopting the above technical solution, several heating tubes are evenly distributed along the circumferential direction of the wire hole axis, which can heat from multiple positions around the coaxial line. This avoids the problem of excessive local temperature difference caused by traditional single heating tubes, making the outer wrapping of the coaxial line more evenly heated. In addition, the air circulation mechanism promotes airflow in the oven, which evenly transfers the heat generated by the heating tubes to the circumference of the coaxial line, further reducing the phenomenon of uneven local heating of the coaxial line. This improves the heating uniformity of the outer wrapping of the coaxial line and enhances the production quality of the coaxial line.

[0006] Preferably, the air circulation mechanism includes a fan, an air inlet is provided through one side wall of the oven, and an air outlet is provided through the other side wall. The fan is fixedly connected to the oven, and the air outlet of the fan is connected to the air inlet.

[0007] By adopting the above technical solution, the fan can send external air or circulating air from inside the oven into the oven through the air inlet, and cause the air to flow out through the air outlet, forming a directional airflow path.

[0008] Preferably, the air circulation mechanism further includes a mesh plate with a plurality of mesh holes arranged in an array on the mesh plate. The mesh plate is fixedly connected to the interior of the oven and is located between the heating tube and the air inlet.

[0009] By adopting the above technical solution, the mesh plate plays a role in diverting and buffering the airflow entering from the air inlet. When the airflow sent by the fan impacts the mesh plate, it will be divided into several small airflows by the multiple mesh holes on the mesh plate, making the originally concentrated airflow more dispersed and uniform. When the dispersed airflow flows through the heating tube area, it contacts the heating tube more evenly and transfers heat more evenly.

[0010] Preferably, the air circulation mechanism further includes a recovery pipe and a heat absorption hood. The heat absorption hood is located outside the oven and faces the air outlet. One end of the recovery pipe is connected to the heat absorption hood, and the other end of the recovery pipe is connected to the air inlet of the fan.

[0011] By adopting the above technical solution, the hot air discharged from the air outlet is collected by the heat absorption hood, and then transported back to the air inlet of the fan through the recovery pipe. The fan then sends the hot air into the oven through the air inlet, thereby reducing heat loss and improving energy utilization.

[0012] Preferably, the oven also includes a protective shell, the protective shell having a main body space inside which the oven is located.

[0013] By adopting the above technical solution, the protective shell protects the oven and reduces the impact of the external environment on the oven; at the same time, the protective shell can also play a role in heat insulation, reducing the heat radiation from the oven to the external environment when it is working, preventing operators from being burned by direct contact with the high temperature of the oven shell, and improving the safety of use.

[0014] Preferably, the protective shell has a heat dissipation vent that connects the main body space and the outside of the protective shell. The heat dissipation vent is located on the side of the heat absorption cover away from the air outlet, and the heat absorption cover can be moved away from the heat dissipation vent and the air outlet.

[0015] By adopting the above technical solution, when the temperature inside the oven is too high and needs to be cooled down quickly, the heating element can be turned off and the heat absorption cover removed. The fan continues to deliver air, allowing the air inside the oven to be discharged directly from the air outlet through the heat dissipation vent, thereby achieving the purpose of rapid cooling. This increases the flexibility of equipment use and adapts to different heating conditions.

[0016] Preferably, the protective shell also has an extension space located at the top of the main space and connected to the main space. The protective shell has a cooling vent that connects the extension space to the outside. The heat absorption hood can enter the extension space and face the cooling vent. The protective shell is also provided with a state conversion mechanism, which is used to drive the heat absorption hood to move and face the cooling vent or air outlet.

[0017] By adopting the above technical solution, the state switching mechanism can drive the heat absorption cover to switch positions between the air outlet and the cooling air outlet: when the heat absorption cover is facing the air outlet, hot air is recycled and heat loss is reduced; when the heat absorption cover moves to the extended space and faces the cooling air outlet, the fan can draw in cold air from the outside through the cooling air outlet and send it into the oven through the air inlet to accelerate the oven cooling process.

[0018] Preferably, the state transition mechanism includes a sliding frame, a lead screw, and a motor. The sliding frame is slidably connected to the protective shell, the heat absorption cover is fixedly connected to the sliding frame, the lead screw is rotatably connected to the protective shell, the lead screw is threadedly connected to the sliding frame, the motor is fixedly connected to the protective shell, and the drive shaft of the motor is coaxially fixed with the lead screw.

[0019] By adopting the above technical solution, when the motor drives the lead screw to rotate, the lead screw and the sliding frame are connected by threads, which drives the sliding frame to slide along the protective shell, thereby realizing the movement and switching of the heat absorption cover between the air outlet and the cooling air outlet.

[0020] In summary, this application includes at least one of the following beneficial technical effects: 1. By setting up an oven, wire guide hole, heating tube, fan, air inlet, air outlet, mesh plate, and mesh, the heating tube is evenly distributed around the circumference of the wire guide hole axis, heating from multiple positions around the circumference to reduce local temperature differences. The fan drives air to enter through the air inlet, and the mesh plate disperses the airflow evenly, so that the heat is transferred to the coaxial cable more evenly through the flowing air, reducing the loosening of the wrapping tape and improving the quality of the coaxial cable. 2. By setting up a recovery pipe and a heat absorption hood, the heat absorption hood collects the hot air discharged from the air outlet, which is then transported back to the air inlet of the air blower through the recovery pipe, and then sent into the oven by the blower, thereby reducing heat loss and improving energy utilization. 3. By setting up heat dissipation vents, extension space, cool air vents, sliding frame, lead screw, and motor, the motor drives the lead screw to rotate, which in turn moves the sliding frame and heat absorption hood. This allows the heat absorption hood to switch between the air outlet and the cool air vent. When the heat absorption hood is facing the air outlet, heat circulation is achieved. When the heat absorption hood is facing the cool air vent, the fan draws in cold air from the outside to accelerate the cooling of the oven, and the hot air is discharged from the heat dissipation vent through the air outlet. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the heating device for a coaxial high-frequency winding machine provided in the embodiments of this application.

[0022] Figure 2 This is a schematic diagram of the structure of the oven for the heating device of the coaxial high-frequency winding machine provided in the embodiments of this application.

[0023] Figure 3This is a cross-sectional structural diagram of the heating device for a coaxial high-frequency winding machine provided in the embodiments of this application.

[0024] Explanation of reference numerals in the attached diagram: 1. Oven; 11. Cable guide hole; 12. Heating element; 13. Air inlet; 14. Air outlet; 2. Air circulation mechanism; 21. Fan; 22. Mesh plate; 221. Mesh; 23. Recycling pipe; 231. Rigid pipe; 232. Flexible pipe; 24. Heat absorption cover; 3. Protective shell; 31. Main body space; 311. Heat dissipation vent; 32. Extension space; 321. Cooling vent; 33. Sliding frame; 34. Lead screw; 35. Motor. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0026] This application discloses a heating device for a coaxial cable high-frequency winding machine. (Refer to...) Figure 1 and Figure 2 It includes a protective shell 3 and an oven 1. The protective shell 3 has a main body space 31 and an extension space 32. The extension space 32 is located at the top of the main body space 31 and communicates with the main body space 31. The oven 1 is fixed in the main body space 31. The protective shell 3 provides protection for the oven 1 and prevents personnel from directly contacting the oven 1.

[0027] Reference Figure 1 and Figure 2 The oven 1 has through holes 11 on both end walls for a coaxial cable to pass through its interior. The axes of the two through holes 11 coincide. The protective shell 3 has through holes on both end walls corresponding to the through holes 11. The coaxial cable enters the oven 1 through the through hole and through hole 11 at one end of the heating device, and then exits through the through hole and through hole 11 at the other end of the heating device, so as to heat and melt the wrapping tape inside the oven 1.

[0028] Reference Figure 3 The oven 1 contains several heating tubes 12, each equipped with a heating wire. The heating tubes 12 are parallel to the axis of the wire hole 11, and all heating tubes 12 are evenly and spaced apart along the circumference of the axis of the wire hole 11. In this embodiment, four heating tubes 12 are provided. The four heating tubes 12 heat from four positions around the coaxial line, avoiding the problem of excessive local temperature differences caused by a traditional single heating tube 12, thus making the outer wrapping of the coaxial line more evenly heated.

[0029] To further mitigate the uneven heating and cooling phenomenon in the coaxial cable, refer to Figure 3The oven 1 is also equipped with an air circulation mechanism 2, which is used to circulate air within the oven 1. The air circulation mechanism 2 includes a fan 21, a mesh plate 22, a heat recovery pipe 23, and a heat absorption cover 24. An air inlet 13 is provided through one side wall of the oven 1, and an air outlet 14 is provided through the other side wall. The fan 21 is fixedly connected to the oven 1, and the air outlet of the fan 21 communicates with the air inlet 13. In this embodiment, two fans 21 are provided along the length of the oven 1.

[0030] Reference Figure 3 The mesh plate 22 has an array of mesh holes 221. The mesh plate 22 is fixedly connected to the inside of the oven 1 and is located between the heating tube 12 and the air inlet 13. The mesh plate 22 plays a role in diverting and buffering the airflow entering from the air inlet 13, making the concentrated airflow more dispersed and uniform. When the dispersed airflow flows through the area of ​​the heating tube 12, it transfers heat more evenly along the coaxial axis.

[0031] Reference Figure 2 and Figure 3 Two heat-absorbing covers 24 are provided along the length of the oven 1, each corresponding to a fan 21. The heat-absorbing covers 24 are located outside the oven 1, with their two sides interconnected. One side of the heat-absorbing cover 24 is flared and faces the air outlet 14. One end of the recovery pipe 23 is connected to the other side of the heat-absorbing cover 24, and the other end is connected to the air inlet of the fan 21. In this embodiment, the recovery pipe 23 includes a rigid pipe 231 and a flexible pipe 232 that are interconnected. The end of the rigid pipe 231 away from the flexible pipe 232 is connected to the air inlet of the fan 21, and the end of the flexible pipe 232 away from the rigid pipe 231 is connected to the heat-absorbing cover 24. The flexible pipe 232 allows the heat-absorbing cover 24 to move relative to the fan 21, and the rigid pipe 231 shortens the length of the flexible pipe 232, improving the overall stability of the recovery pipe 23.

[0032] Reference Figure 2 and Figure 3 The airflow generated by the fan 21 enters the oven 1 through the air inlet 13. After being diverted and buffered by the mesh plate 22, it flows through the heating tube 12 area, where it mixes thoroughly with the heat generated by the heating tube 12, forming a hot airflow that evenly heats the coaxial outer wrapping. After completing the heat transfer within the oven 1, the hot airflow is discharged from the air outlet 14 and collected by the heat absorption hood 24. It is then transported back to the air inlet of the fan 21 through the recovery pipe 23, thereby reducing heat loss and improving energy utilization.

[0033] To facilitate rapid cooling of the interior of oven 1 in case of overheating, refer to... Figure 3The protective shell 3 has a heat dissipation vent 311 on its side wall, connecting the main body space 31 and the outside of the protective shell 3. The heat dissipation vent 311 is located on the side of the heat absorption cover 24 away from the air outlet 14. The heat absorption cover 24 can be removed from between the heat dissipation vent 311 and the air outlet 14. The protective shell 3 has a cooling vent 321 on its side, connecting the extended space 32 and the outside. The heat absorption cover 24 can enter the extended space 32, with the flared side of the heat absorption cover 24 facing the cooling vent 321.

[0034] Reference Figure 3 The protective shell 3 is also equipped with a state-switching mechanism, which drives the heat-absorbing cover 24 to move and align it with the cooling air inlet 321 or the air outlet 14. Specifically, the state-switching mechanism includes a sliding frame 33, a lead screw 34, and a motor 35. The sliding frame 33 is slidably connected to the protective shell 3 along its height direction, and both heat-absorbing covers 24 are fixedly connected to the sliding frame 33. The lead screw 34 is rotatably connected to the protective shell 3, and its axis is parallel to the height direction of the protective shell 3. The lead screw 34 is threadedly connected to the sliding frame 33. The motor 35 is fixedly connected to the top of the protective shell 3, and its drive shaft is coaxially fixed with the lead screw 34.

[0035] Reference Figure 3 When the interior of oven 1 becomes overheated, motor 35 drives lead screw 34 to rotate. Lead screw 34 engages with sliding frame 33 via a threaded transmission, causing sliding frame 33 to rise, which in turn drives heat absorption hood 24 to rise until heat absorption hood 24 enters the extension space 32 and is directly opposite cooling air vent 321. At this time, fan 21 no longer draws in hot air discharged from oven 1, but rather cold air from the outside entering through cooling air vent 321. The cold air is pressurized by fan 21 and sent into the interior of oven 1 through air inlet 13, mixes with the hot air inside oven 1, and is discharged into the main space 31 through air outlet 14, and then dissipated to the outside of protective shell 3 through heat dissipation vent 311, thereby quickly removing heat from the interior of oven 1 and achieving rapid cooling of the interior of oven 1.

[0036] The implementation principle of the heating device for the coaxial cable high-frequency winding machine in this application embodiment is as follows: Multiple heating tubes 12 heat the coaxial cable from multiple circumferential positions, avoiding the problem of excessive local temperature differences caused by a single heating tube 12 in traditional methods, thus making the outer wrapping tape of the coaxial cable more evenly heated. Simultaneously, the airflow generated by the fan 21 enters the oven 1 through the air inlet 13, is diverted and buffered by the mesh plate 22, and then flows through the area of ​​the heating tubes 12, fully mixing with the heat generated by the heating tubes 12 to form a hot airflow that evenly heats the outer wrapping tape of the coaxial cable. After completing heat transfer within the oven 1, the hot airflow is discharged from the air outlet 14 and collected by the heat absorption hood 24, and then reintroduced to the air inlet of the fan 21 through the recovery pipe 23, reducing heat loss and improving energy utilization. This improves the heating uniformity of the outer wrapping tape of the coaxial cable and enhances the production quality of the coaxial cable.

[0037] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A heating device for a coaxial cable high-frequency winding machine, characterized in that: The oven (1) includes an oven with through holes (11) on both end walls for coaxial wire passing through the interior of the oven (1). The axes of the two through holes (11) coincide. The oven (1) is provided with a plurality of heating tubes (12). The heating tubes (12) are parallel to the axes of the through holes (11). All the heating tubes (12) are evenly and spaced apart in the circumferential direction of the axis of the through holes (11). The oven (1) is also provided with an air circulation mechanism (2) for circulating air inside the oven (1).

2. The heating device for a coaxial cable high-frequency winding machine according to claim 1, characterized in that: The air circulation mechanism (2) includes a fan (21). One side wall of the oven (1) is provided with an air inlet (13) and the other side wall is provided with an air outlet (14). The fan (21) is fixedly connected to the oven (1), and the air outlet of the fan (21) is connected to the air inlet (13).

3. The heating device for a coaxial cable high-frequency winding machine according to claim 2, characterized in that: The air circulation mechanism (2) also includes a mesh plate (22), on which a plurality of mesh holes (221) are arranged in an array. The mesh plate (22) is fixedly connected to the interior of the oven (1) and the mesh plate (22) is located between the heating tube (12) and the air inlet (13).

4. The heating device for a coaxial cable high-frequency winding machine according to claim 2, characterized in that: The air circulation mechanism (2) also includes a recovery pipe (23) and a heat absorption hood (24). The heat absorption hood (24) is located outside the oven (1) and faces the air outlet (14). One end of the recovery pipe (23) is connected to the heat absorption hood (24), and the other end of the recovery pipe (23) is connected to the air inlet of the fan (21).

5. The heating device for a coaxial cable high-frequency winding machine according to claim 4, characterized in that: It also includes a protective shell (3), in which a main body space (31) is provided, and the oven (1) is located in the main body space (31).

6. The heating device for a coaxial cable high-frequency winding machine according to claim 5, characterized in that: The protective shell (3) has a heat dissipation port (311) that connects the main body space (31) and the outside of the protective shell (3). The heat dissipation port (311) is located on the side of the heat absorption cover (24) away from the air outlet (14). The heat absorption cover (24) can be moved away from the heat dissipation port (311) and the air outlet (14).

7. The heating device for a coaxial cable high-frequency winding machine according to claim 6, characterized in that: The protective shell (3) also has an extension space (32) located at the top of the main space (31) and connected to the main space (31). The protective shell (3) has a cooling vent (321) connecting the extension space (32) to the outside. The heat absorption cover (24) can enter the extension space (32) and face the cooling vent (321). The protective shell (3) is also provided with a state conversion mechanism, which is used to drive the heat absorption cover (24) to move and face the cooling vent (321) or the air outlet (14).

8. The heating device for a coaxial cable high-frequency winding machine according to claim 7, characterized in that: The state transition mechanism includes a sliding frame (33), a lead screw (34), and a motor (35). The sliding frame (33) is slidably connected to the protective shell (3), the heat absorption cover (24) is fixedly connected to the sliding frame (33), the lead screw (34) is rotatably connected to the protective shell (3), the lead screw (34) is threadedly connected to the sliding frame (33), the motor (35) is fixedly connected to the protective shell (3), and the drive shaft of the motor (35) is coaxially fixed with the lead screw (34).

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