An automated high frequency tube-in-pipe heat sealing device

Abstract

This application relates to an automated high-frequency pipe heat sealing device, belonging to the field of high-frequency heat sealing technology. It includes a frame, a support rod, a first mounting base, a second mounting base, a first mold base, a second mold base, a high-frequency heat sealing component, a fixing base, and an adjustment assembly. Heating elements are disposed within the first and second mold bases. This automated high-frequency pipe heat sealing device adjusts the distance between the first and second mounting bases using the adjustment assembly, causing the first and second mold bases to clamp the pipe. The high-frequency heat sealing component generates a high-frequency electric field to heat the plastic molecules inside the pipe cavity, while the heating elements further increase the temperature. Under the combined action of the high-frequency electric field and the heating elements, the plastic melts and fuses due to pressure, ultimately achieving heat sealing at the pipe interface.

Description

Technical Field

[0001] This application relates to the field of high-frequency heat sealing technology, and in particular to an automated high-frequency pipe heat sealing device. Background Technology

[0002] High-frequency heat sealing technology directly acts on material molecules through an electric field, offering advantages such as uniform heating, high speed, and low energy consumption. It is widely used in the heat sealing of dielectric materials such as plastic pipes and films. Traditional heat sealing processes, such as heat conduction heating or ultrasonic welding, while having some applications, suffer from high energy consumption, low efficiency, and limited applicability. The emergence of high-frequency heat sealing technology has significantly improved heat sealing efficiency and quality; however, its equipment still has shortcomings in terms of electromagnetic radiation, control precision, and automation, requiring further improvements to enhance equipment performance and safety.

[0003] A related technology, CN108859133A, discloses a high-frequency plastic heat sealing machine, comprising a lifting cylinder, a rotating cylinder, an upper heat sealing plate, a lower heat sealing plate, and an adjustment device. The rotating cylinder is fixed on the output shaft of the lifting cylinder. The adjustment device includes a rotating frame, an intermediate shaft, and a tilting frame fixed on the output shaft of the rotating cylinder. The rotating frame has four hydraulic cylinders evenly distributed around its circumference, and the output shafts of the hydraulic cylinders are hinged to the tilting frame. A spherical bearing is provided in the middle of the tilting frame, and the intermediate shaft is universally connected to the tilting frame through the spherical bearing. Four buffer devices are provided at the bottom of the tilting frame, and the upper heat sealing plate is fixed to the bottom of the buffer devices. This invention can adjust the vertical and horizontal angles of the upper heat sealing plate, thereby enabling it to be pressed onto lower heat sealing plates of different shapes and flatness. It is convenient to use, has a simple structure, and provides excellent heat sealing results.

[0004] Although the high-frequency heat sealing device in the above-mentioned technology can heat seal materials through upper and lower heat sealing plates, this heat sealing method only heats the surface of the material through the upper and lower heat sealing plates to achieve the purpose of heat sealing. The heating capacity of the upper and lower heat sealing plates is limited, which may make it difficult to ensure that the entire layer of material is fully melted, thus affecting the quality of the final heat sealing. In addition, the surface heating method may also lead to uneven heat distribution, which can easily generate heat loss and further reduce the heat sealing effect. Utility Model Content

[0005] To address the limitations of current automated high-frequency pipe heat sealing devices due to their inherent design characteristics, the inventors have discovered that while these devices can heat materials using upper and lower heat sealing plates, this method relies solely on heating the material surface through these plates. The limited heating capacity of the upper and lower plates may make it difficult to ensure complete melting of the entire material layer, thus affecting the final heat sealing quality. Furthermore, surface heating can lead to uneven heat distribution and heat loss, further reducing the heat sealing effect. Therefore, this application provides an automated high-frequency pipe heat sealing device.

[0006] The automated high-frequency heat sealing device provided in this application adopts the following technical solution: it includes a frame, support rods respectively fixedly disposed on both sides of the frame, a first mounting seat slidably connected to the upper end face of the support rod, a second mounting seat slidably connected to the lower end face of the support rod, a first mold seat disposed on the lower end face of the first mounting seat, a second mold seat disposed on the upper end face of the second mounting seat, a high-frequency heat sealing component disposed in the middle of the first mold seat and the second mold seat, a fixing seat for fixing the high-frequency heat sealing component, and an adjustment component for adjusting the first mounting seat and the second mounting seat. Heating elements are disposed inside the first mold seat and the second mold seat.

[0007] By adopting the above technical solution, the distance between the first mounting base and the second mounting base is adjusted by adjusting the components, so that the first mold base and the second mold base clamp the through pipe. The high-frequency heat sealing component generates a high-frequency electric field to heat the plastic molecules in the inner cavity of the through pipe. At the same time, the heating element further increases the temperature, so that under the combined action of the high-frequency electric field and the heating element, the plastic melts and is fused due to pressure, and finally the heat sealing at the through pipe interface is achieved.

[0008] As a preferred embodiment, movable bushings are respectively provided at the connection points between the first mounting base and the second mounting base and the support rod, and the movable bushings are fixedly connected to the first mounting base and the second mounting base.

[0009] By adopting the above technical solution, the first mounting base and the second mounting base are connected to the support rod through a movable bushing. The sliding structure inside the movable bushing makes it easier for the two to move on the support rod, reducing the resistance caused by friction, thereby improving the operating efficiency and stability of the equipment.

[0010] As a preferred embodiment, the first mold base and the second mold base are respectively made of copper, and the outer periphery of the first mold base and the second mold base are provided with a silver plating coating.

[0011] By adopting the above technical solution, the first mold base and the second mold base are made of copper. Copper has good thermal conductivity and electrical conductivity, which can effectively transfer heat. The silver plating coating on the outer periphery of the first mold base and the second mold base can further improve the electrical conductivity and reduce thermal resistance. The efficient heat transfer of copper material, combined with the enhanced electrical conductivity of the silver plating coating, enables the first mold base and the second mold base to quickly reach the set temperature and maintain a uniform heat distribution.

[0012] As a preferred embodiment, the heating element is configured as an electric heating tube, and the heating temperature of the electric heating tube is set to 45℃-60℃.

[0013] By adopting the above technical solution, the damage of high temperature to materials or products can be effectively avoided, while the heating speed can be accelerated and the heating effect can be guaranteed. The working principle of the heating tube is to generate heat by passing current through the resistance wire. The resistance wire is embedded or wrapped in heat-resistant insulating material to ensure its safety and stability during the heating process.

[0014] As a preferred embodiment, the high-frequency heat-sealing component includes a high-frequency electronic generator connected to the fixed base, a high-frequency electron tube electrically connected to the high-frequency electronic generator, and an elastic support member disposed between the high-frequency electronic generator and the high-frequency electron tube. The high-frequency electronic generator includes a high-voltage power supply, an electron tube filament power supply electrically connected to the high-voltage power supply, and a rectifier circuit disposed between the high-voltage power supply and the electron tube filament power supply. The high-voltage power supply is externally connected to a power filter.

[0015] By adopting the above technical solution, it is convenient to provide high-frequency current to high-frequency electron tubes.

[0016] As a preferred embodiment, the high-frequency electron tube is composed of a large-diameter copper cylinder and distributed capacitors uniformly arranged inside the copper cylinder. The outer periphery of the copper cylinder is grounded to form a closed cavity, and the elastic support is made of thermally conductive silicone grease.

[0017] By adopting the above technical solution, the high-frequency heat-sealing component consists of a fixed base, a high-frequency electron generator, a high-frequency electron tube, and an elastic support. The high-frequency electron generator generates high-frequency current through a high-voltage power supply, which heats the high-frequency electron tube via the electron tube filament power supply. Simultaneously, a rectifier circuit converts AC to DC to ensure stable operation of the high-frequency electron tube, and a power filter further purifies the input power, optimizing the overall system performance. The elastic support is made of thermally conductive silicone grease, which not only provides good support for the inner wall of the tube but also efficiently transfers the heat generated by the high-frequency heat-sealing component to the inner wall of the tube. The high-frequency electron tube contains a large-diameter copper cylinder and distributed capacitors, forming a closed cavity. When high-frequency current passes through, a high-frequency electric field is generated, polarizing and heating the plastic molecules inside the tube, thus effectively sealing the plastic tube at the heat-sealing interface. This design not only improves heat-sealing efficiency but also ensures uniform heating of the plastic tube, guaranteeing heat-sealing quality.

[0018] As a preferred embodiment, it further includes a first limiting block uniformly disposed around the periphery of the high-frequency electron generator and a second limiting block uniformly disposed around the periphery of the high-frequency electron tube and at one end relative to the first limiting block, wherein the first limiting block and the second limiting block are staggered.

[0019] By adopting the above technical solution, first limiting blocks are uniformly arranged around the outer periphery of the high-frequency electronic generator to restrict its radial movement and axial vibration, ensuring that the high-frequency electronic generator is placed stably and in close contact with the elastic support. Similarly, second limiting blocks are also uniformly arranged around the outer periphery of the high-frequency electron tube. This design, by restricting the radial movement and axial vibration of the high-frequency electron tube, ensures that its connection with the elastic support is equally stable. The positions of the second limiting blocks are staggered relative to one end of the first limiting blocks. This not only prevents improper radial or axial movement or vibration between the high-frequency electronic generator and the high-frequency electron tube, but also improves the efficiency and stability of installation through the staggered arrangement.

[0020] As a preferred embodiment, the adjustment assembly includes a first movable seat fixedly connected to the rear end face of the first mounting seat, a second movable seat fixedly disposed on the rear end face of the second mounting seat, a bidirectional lead screw for connecting the first movable seat and the second movable seat, a bearing seat disposed at the middle position of the bidirectional lead screw and fixedly connected to the fixed seat, and a drive motor for driving the bidirectional lead screw. The drive motor is fixedly connected to the frame, and the output shaft of the drive motor passes through the frame and is connected to the bidirectional lead screw.

[0021] By adopting the above technical solution, the first mounting base moves up and down via the first movable base, while the second mounting base moves up and down after being fixed by the second movable base. A bidirectional lead screw connects the first and second movable bases, and a drive motor is mounted on the frame and connected to the bidirectional lead screw via its output shaft, thereby driving the bidirectional lead screw to rotate. When the drive motor rotates, the bidirectional lead screw enables the first and second movable bases to move relative to or towards each other, thereby causing the first and second mounting bases to change their positions accordingly.

[0022] As a preferred embodiment, the system further includes slide rails fixedly disposed on both sides of the front end face of the frame and sliders disposed on both sides of the rear end faces of the first and second mounting seats that are adapted to the slide rails, wherein the sliders are fixedly connected to the first and second mounting seats.

[0023] By adopting the above technical solution, the slide rails are fixedly mounted on both sides of the front end face of the frame, providing linear guidance and ensuring that the first and second mounting seats maintain a straight path when moving along them, reducing swaying and offset, thereby improving stability during movement. The sliders are fixedly mounted on both sides of the rear end faces of the first and second mounting seats, adapting to the slide rails to ensure smooth sliding on them. The fixed connection between the sliders and the first and second mounting seats enhances the rigidity and durability of the overall structure, ensuring that the relative positions between the mounting seats remain stable during dynamic operation.

[0024] As a preferred embodiment, the support rod is further provided with a tension spring disposed on its outer periphery, one end of which is fixedly connected to the lower end face of the first mounting base, and the other end of which is fixedly connected to the upper end face of the second mounting base.

[0025] By adopting the above technical solution, one end of the tension spring is fixed to the lower end face of the first mounting base, and the other end is fixed to the upper end face of the second mounting base. Its function is to ensure that the two mold bases maintain appropriate tension during the pressing process, thereby ensuring the accuracy and stability of the pressing.

[0026] In summary, this application includes the following beneficial technical effects: 1. The support rods are fixedly installed on both sides of the frame, providing support for the first and second mounting seats to slide up and down; the first mounting seat is slidably connected to the upper end face of the support rod, and the second mounting seat is slidably connected to the lower end face of the support rod, so as to facilitate the adjustment of the relative distance between the first and second mounting seats; 2. The first mold base is fixed to the lower end face of the first mounting base, and the second mold base is fixed to the upper end face of the second mounting base. The two are used to clamp the outer periphery of the tube and pressurize it respectively. The high-frequency heat sealing component is set in the middle of the first mold base and the second mold base. It generates a high-frequency electric field to polarize and self-heat the plastic molecules in the inner cavity of the tube, thereby achieving heat sealing. The fixing base is used to fix the position of the high-frequency heat sealing component. 3. The adjusting component is used to adjust the relative distance between the first mounting base and the second mounting base, thereby enabling the first mold base and the second mold base to effectively pressurize and heat-seal the through pipe. The heating element is set inside the first mold base and the second mold base to assist the high-frequency heat-sealing component in achieving efficient heat sealing. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the automated high-frequency heat sealing device for pipes in this application; Figure 2 It is in the automated high-frequency heat sealing device of this application Figure 1 A structural schematic diagram of the front view; Figure 3 It is in the automated high-frequency heat sealing device of this application Figure 1 A structural schematic diagram of the side view; Figure 4 This is a structural schematic diagram of the high-frequency heat sealing component in the automated high-frequency pipe heat sealing device of this application.

[0028] Explanation of reference numerals in the attached drawings: 1. Frame; 21. First mounting base; 22. Second mounting base; 31. Support rod; 311. Moving bushing; 32. Tension spring; 41. Bearing seat; 411. Fixed seat; 51. Double-acting lead screw; 511. Drive motor; 521. First moving seat; 522. Second moving seat; 61. First mold seat; 62. Second mold seat; 7. High-frequency heat sealing component; 71. High-frequency electronic generator; 711. First limiting block; 72. High-frequency electron tube; 721. Second limiting block; 8. Elastic support component; 91. Slider; 911. Slide rail. Detailed Implementation

[0029] The present application will be further described in detail below with reference to the accompanying drawings.

[0030] Please refer to the details. Figure 1 , Figure 2 , Figure 3 and Figure 4This application discloses an automated high-frequency heat sealing device for pipes. It includes a frame 1, support rods 31 fixedly mounted on both sides of the frame 1, a first mounting base 21 slidably connected to the upper end face of the support rods 31, a second mounting base 22 slidably connected to the lower end face of the support rods 31, a first mold base 61 disposed on the lower end face of the first mounting base 21, a second mold base 62 disposed on the upper end face of the second mounting base 22, a high-frequency heat sealing component 7 disposed in the middle of the first mold base 61 and the second mold base 62, a fixing base 411 for fixing the high-frequency heat sealing component 7, and an adjustment assembly for adjusting the first mounting base 21 and the second mounting base 22. Heating elements are disposed inside the first mold base 61 and the second mold base 62. In this invention, the support rods 31 are fixedly mounted on both sides of the frame 1, providing support for the first mounting base 21 and the second mounting base 22 to slide up and down. Mounting base 21 is slidably connected to the upper end face of support rod 31, and second mounting base 22 is slidably connected to the lower end face of support rod 31, facilitating adjustment of the relative distance between the first mounting base 21 and the second mounting base 22. First mold base 61 is fixed to the lower end face of first mounting base 21, and second mold base 62 is fixed to the upper end face of second mounting base 22. Both are used to clamp the outer periphery of the tube and apply pressure. High-frequency heat-sealing component 7 is disposed in the middle of the first mold base 61 and the second mold base 62, generating a high-frequency electric field to polarize and self-heat the plastic molecules inside the tube, thereby achieving heat sealing. Fixed base 411 is used to fix the position of high-frequency heat-sealing component 7. Adjustment component is used to adjust the relative distance between the first mounting base 21 and the second mounting base 22, enabling the first mold base 61 and the second mold base 62 to effectively pressurize and heat-seal the tube. Heating element is disposed within the first mold base 61 and the second mold base 62 to assist the high-frequency heat-sealing component 7 in achieving efficient heat sealing. The overall working principle is as follows: by adjusting the distance between the first mounting base 21 and the second mounting base 22 by adjusting the component, the first mold base 61 and the second mold base 62 clamp the through pipe. The high-frequency heat sealing component 7 generates a high-frequency electric field to heat the plastic molecules in the inner cavity of the through pipe. At the same time, the heating element further increases the temperature, so that under the combined action of the high-frequency electric field and the heating element, the plastic melts and is fused due to pressure, and finally the heat sealing at the through pipe interface is achieved.

[0031] Please refer to the details. Figure 1 and Figure 2 Movable bushings 311 are respectively provided at the connection points between the first mounting base 21 and the second mounting base 22 and the support rod 31. The movable bushings 311 are fixedly connected to the first mounting base 21 and the second mounting base 22. The first mounting base 21 and the second mounting base 22 are connected to the support rod 31 through the movable bushings 311. The sliding structure inside the movable bushings 311 makes it easier for the two to move on the support rod 31, reducing the resistance caused by friction, thereby improving the operating efficiency and stability of the equipment.

[0032] Please refer to the details. Figure 1 and Figure 2 The first mold base 61 and the second mold base 62 are respectively made of copper, and the outer periphery of the first mold base 61 and the second mold base 62 is provided with a silver plating coating. The first mold base 61 and the second mold base 62 are respectively made of copper. Copper has good thermal conductivity and electrical conductivity, which can effectively transfer heat. The silver plating coating on the outer periphery of the first mold base 61 and the second mold base 62 can further improve the electrical conductivity and reduce thermal resistance. Through the efficient heat transfer of copper material and the enhanced electrical conductivity of silver plating coating, the first mold base 61 and the second mold base 62 can quickly reach the set temperature and maintain a uniform heat distribution.

[0033] Please refer to the details. Figure 1 The heating element is set as an electric heating tube, and the heating temperature of the electric heating tube is set to 45℃-60℃, which can effectively avoid damage to materials or products by high temperature, while accelerating the heating speed and ensuring the heating effect. The working principle of the heating tube is to generate heat by passing current through the resistance wire. The resistance wire is embedded or wrapped in heat-resistant insulating material to ensure its safety and stability during the heating process.

[0034] Please refer to the details. Figure 1 and Figure 4The high-frequency heat sealing component 7 includes a high-frequency electronic generator 71 connected to the fixed base 411, a high-frequency electron tube 72 electrically connected to the high-frequency electronic generator 71, and an elastic support 8 disposed between the high-frequency electronic generator 71 and the high-frequency electron tube 72. The high-frequency electronic generator 71 includes a high-voltage power supply, an electron tube filament power supply electrically connected to the high-voltage power supply, and a rectifier circuit disposed between the high-voltage power supply and the electron tube filament power supply. The high-voltage power supply is externally connected to a power filter to facilitate increasing the high-frequency current of the high-frequency electron tube 72. The high-frequency electron tube 72 consists of a large-diameter copper cylinder and distributed capacitors evenly disposed inside the copper cylinder. The outer periphery of the copper cylinder is grounded to form a closed cavity. The elastic support 8 is made of thermally conductive silicone grease, which is used to support the inner wall of the tube and facilitate the transfer of heat generated by the high-frequency heat sealing component 7 to the inner wall of the tube. The high-frequency heat sealing component 7 is composed of the fixed base 411, the high-frequency electronic generator 71, the high-frequency electron tube 72, and the elastic support 8. The high-frequency electron generator 71 generates high-frequency current through a high-voltage power supply, which heats the high-frequency electron tube 72 via the electron tube filament power supply. Simultaneously, a rectifier circuit converts AC to DC to ensure stable operation of the high-frequency electron tube 72, and a power filter further purifies the input power, optimizing the overall system performance. The elastic support 8, made of thermally conductive silicone grease, not only provides excellent support for the inner wall of the tube but also efficiently transfers the heat generated by the high-frequency heat-sealing component 7 to the inner wall of the tube. The high-frequency electron tube 72 contains a large-diameter copper cylinder and distributed capacitors, forming a closed cavity. When high-frequency current passes through, a high-frequency electric field is generated, polarizing and heating the plastic molecules within the tube's inner cavity, thus effectively sealing the plastic tube at the heat-sealing interface. This design not only improves heat-sealing efficiency but also ensures uniform heating of the plastic tube, guaranteeing heat-sealing quality.

[0035] Please refer to the details. Figure 4To ensure the stability of the connection between the elastic support 8 and the high-frequency electronic generator 71 and the high-frequency electron tube 72, a first limiting block 711 is uniformly disposed around the outer periphery of the high-frequency electronic generator 71, and a second limiting block 721 is uniformly disposed around the outer periphery of the high-frequency electron tube 72 relative to one end of the first limiting block 711. The first limiting block 711 and the second limiting block 721 are staggered. The first limiting block 711 is uniformly disposed around the outer periphery of the high-frequency electronic generator 71 to limit its radial movement and axial vibration, ensuring that the high-frequency electronic generator 71 is placed stably and in close contact with the elastic support 8. Similarly, the second limiting block 721 is also uniformly disposed around the outer periphery of the high-frequency electron tube 72. This design ensures that the connection between the high-frequency electron tube 72 and the elastic support 8 is equally stable by limiting the radial movement and axial vibration of the high-frequency electron tube 72. The second limiting block 721 is staggered relative to one end of the first limiting block 711. This not only prevents improper radial or axial movement or vibration between the high-frequency electronic generator 71 and the high-frequency electronic tube 72, but also improves the efficiency and stability of installation through staggered arrangement.

[0036] Please refer to the details. Figure 1 , Figure 2 and Figure 3 The adjustment assembly includes a first movable seat 521 fixedly connected to the rear end face of the first mounting seat 21, a second movable seat 522 fixedly disposed on the rear end face of the second mounting seat 22, a bidirectional lead screw 51 for connecting the first movable seat 521 and the second movable seat 522, a bearing seat 41 disposed at the middle position of the bidirectional lead screw 51 and fixedly connected to the fixed seat 411, and a drive motor 511 for driving the bidirectional lead screw 51. The drive motor 511 is fixedly connected to the frame 1, and the output shaft of the drive motor 511 passes through the frame 1 and is connected to the bidirectional lead screw 51. The first mounting seat 21 moves up and down through the first movable seat 521, while the second mounting seat 22 moves up and down after being fixed by the second movable seat 522. The bidirectional lead screw 51 connects the first movable seat 521 and the second movable seat 522. The drive motor 511 is mounted on the frame 1 and connected to the bidirectional lead screw 51 through its output shaft, thereby driving the bidirectional lead screw 51 to rotate. When the drive motor 511 rotates, the bidirectional lead screw 51 enables the first movable seat 521 and the second movable seat 522 to move relative to or towards each other, thereby causing the first mounting seat 21 and the second mounting seat 22 to change their positions accordingly. The working principle is as follows: when the drive motor 511 starts, its output shaft drives the bidirectional lead screw 51 to rotate. Since the bidirectional lead screw 51 is connected to the first movable seat 521 and the second movable seat 522, they move towards or relative to each other under the drive of the lead screw, thereby realizing the adjustment of the relative or facing positions of the first mounting seat 21 and the second mounting seat 22.

[0037] Please refer to the details. Figure 2 and Figure 3To ensure the stability of the first mounting base 21 and the second mounting base 22 during movement, the system also includes slide rails 911 fixedly mounted on both sides of the front end face of the frame 1, and sliders 91 adapted to the slide rails 911 and mounted on both sides of the rear end faces of the first mounting base 21 and the second mounting base 22. The sliders 91 are fixedly connected to the first mounting base 21 and the second mounting base 22. The slide rails 911, fixedly mounted on both sides of the front end face of the frame 1, provide linear guidance, ensuring that the first mounting base 21 and the second mounting base 22 maintain a straight path during movement, reducing swaying and offset, thereby improving stability during movement. The sliders 91 are fixedly mounted on both sides of the rear end faces of the first mounting base 21 and the second mounting base 22, adapted to the slide rails 911, ensuring smooth sliding on the slide rails 911. The fixed connection between the sliders 91 and the first mounting base 21 and the second mounting base 22 enhances the rigidity and durability of the overall structure, ensuring that the relative position between the mounting bases remains stable during dynamic operation. In summary, through the overall cooperation of the slide rail 911 and the slider 91, the first mounting base 21 and the second mounting base 22 can maintain a uniform and stable linear motion during movement. Please refer to the details. Figure 1 To ensure tension between the first mold base 61 and the second mold base 62 during pressing, a tension spring 32 is also included, located on the outer periphery of the support rod 31. One end of the tension spring 32 is fixedly connected to the lower end face of the first mounting base 21, and the other end is fixedly connected to the upper end face of the second mounting base 22. The function of the tension spring 32 is to ensure that the two mold bases maintain appropriate tension during pressing, thereby ensuring accuracy and stability during pressing. The working principle is as follows: through the elastic characteristics of the tension spring 32, a constant tension is formed between the first mold base 61 and the second mold base 62 in the vertical direction. Even under changes in external pressure, stable contact between the two molds can be maintained, thus ensuring uniform pressure distribution during pressing.

[0038] The implementation principle of the automated high-frequency heat sealing device for through-pipes in this application embodiment is as follows: During use, the drive motor 511 starts, and its output shaft drives the bidirectional lead screw 51 to rotate. Since the bidirectional lead screw 51 is connected to the first moving seat 521 and the second moving seat 522, they move towards each other or relative to each other under the drive of the lead screw, thereby realizing the relative or opposite position adjustment of the first mounting seat 21 and the second mounting seat 22, realizing the clamping of the outer periphery of the through-pipe by the first mold seat 61 and the second mold seat 62. The high-frequency heat sealing component 7 generates a high-frequency electric field to heat the plastic molecules in the inner cavity of the through-pipe. At the same time, the heating element further increases the temperature, so that under the combined action of the high-frequency electric field and the heating element, the plastic melts and is fused due to pressure, finally realizing the heat sealing at the through-pipe interface.

[0039] 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. An automated high frequency through tube heat sealing apparatus characterized by: The device includes a frame (1), support rods (31) fixedly mounted on both sides of the frame (1), a first mounting seat (21) slidably connected to the upper end face of the support rods (31), a second mounting seat (22) slidably connected to the lower end face of the support rods (31), a first mold seat (61) disposed on the lower end face of the first mounting seat (21), a second mold seat (62) disposed on the upper end face of the second mounting seat (22), a high-frequency heat sealing component (7) disposed in the middle of the first mold seat (61) and the second mold seat (62), a fixing seat (411) for fixing the high-frequency heat sealing component (7), and an adjustment component for adjusting the first mounting seat (21) and the second mounting seat (22). Heating elements are disposed in the first mold seat (61) and the second mold seat (62).

2. An automated high frequency through tube heat sealing apparatus as claimed in claim 1, wherein: The first mounting base (21) and the second mounting base (22) are respectively provided with movable bushings (311) at the connection points with the support rod (31), and the movable bushings (311) are fixedly connected to the first mounting base (21) and the second mounting base (22).

3. An automated high frequency through tube sealing apparatus as defined in claim 2, wherein: The first mold base (61) and the second mold base (62) are respectively made of copper, and the outer periphery of the first mold base (61) and the second mold base (62) is provided with a silver plating coating.

4. An automated high frequency through tube sealing apparatus as defined in claim 3, wherein: The heating element is an electric heating tube, and the heating temperature of the electric heating tube is set to 45℃-60℃.

5. An automated high frequency through tube sealing apparatus as defined in claim 4, wherein: The high-frequency heat sealing component (7) includes a high-frequency electronic generator (71) connected to the fixed base (411), a high-frequency electronic tube (72) electrically connected to the high-frequency electronic generator (71), and an elastic support (8) disposed between the high-frequency electronic generator (71) and the high-frequency electronic tube (72). The elastic support (8) is made of thermally conductive silicone grease.

6. An automated high frequency through tube sealing apparatus as defined in claim 5, wherein: The high-frequency electronic generator (71) includes a high-voltage power supply, an electron tube filament power supply electrically connected to the high-voltage power supply, and a rectifier circuit disposed between the high-voltage power supply and the electron tube filament power supply. The high-voltage power supply is externally connected to a power filter.

7. An automated high frequency through tube sealing apparatus as defined in claim 6, wherein: The high-frequency electron tube (72) is composed of a large-diameter copper tube and distributed capacitors uniformly arranged inside the copper tube, and the outer periphery of the copper tube is grounded to form a closed cavity.

8. An automated high frequency through tube sealing apparatus as defined in claim 7, wherein: It also includes a first limiting block (711) uniformly disposed around the high-frequency electron generator (71) and a second limiting block (721) uniformly disposed around the high-frequency electron tube (72) and opposite one end of the first limiting block (711), wherein the first limiting block (711) and the second limiting block (721) are arranged alternately.

9. An automated high frequency through tube sealing apparatus as defined in claim 8, wherein: The adjustment assembly includes a first movable seat (521) fixedly connected to the rear end face of the first mounting seat (21), a second movable seat (522) fixedly disposed on the rear end face of the second mounting seat (22), a bidirectional lead screw (51) for connecting the first movable seat (521) and the second movable seat (522), a bearing seat (41) disposed at the middle position of the bidirectional lead screw (51) and fixedly connected to the fixed seat (411), and a drive motor (511) for driving the bidirectional lead screw (51). The drive motor (511) is fixedly connected to the frame (1), and the output shaft of the drive motor (511) passes through the frame (1) and is connected to the bidirectional lead screw (51).

10. An automated high frequency through tube sealing apparatus as defined in claim 9, wherein: It also includes a tension spring (32) disposed on the outer periphery of the support rod (31), one end of the tension spring (32) being fixedly connected to the lower end face of the first mounting base (21), and the other end of the tension spring (32) being fixedly connected to the upper end face of the second mounting base (22).

Images