High-frequency induction plastic welding machine with induction coil capable of moving up and down

By designing an induction coil assembly and a rotating assembly that can move up and down, the problem of uneven heating in high-frequency plastic welding machines was solved, achieving uniform heating and efficient production of plastic parts, and improving production efficiency.

CN224183794UActive Publication Date: 2026-05-01ARISEN TECHNOLOGY (WUHAN) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ARISEN TECHNOLOGY (WUHAN) CO LTD
Filing Date
2025-04-16
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing high-frequency plastic welding machines suffer from uneven heating during the heating process, resulting in poor heat sealing of plastic parts.

Method used

A high-frequency induced plastic welding machine with a movable induction coil was designed. The lifting plate and welding head are driven to rise and fall synchronously by a cylinder and piston rod. Combined with the telescopic rod driving the rise and fall of the annular induction coil frame, the induction coil can move up and down, and the heating area can be flexibly adjusted to ensure uniform heating.

Benefits of technology

It achieves uniform heating of plastic parts, promotes plastic deformation, improves production efficiency, and facilitates the disassembly and replacement of the welding frame.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an induction coil high frequency induction plastic welding machine capable of moving up and down, and relates to the technical field of high frequency plastic welding machines, the plastic welding machine comprises a workbench, a welding machine head and a motion induction coil assembly, the upper side of the workbench is provided with a rotary table, and the lower side of the middle part of the rotary table is provided with a rotating assembly; a rear plate is fixed to one side of the workbench, an air cylinder is installed on the front side of the upper portion of the rear plate, a piston rod is arranged on the lower side of the air cylinder, a lifting plate is fixed to the bottom of the piston rod, a welding machine head is installed on the lower side of the lifting plate, and a motion induction coil assembly is installed on the outer side of the lifting plate. According to the induction coil high-frequency induction plastic welding machine capable of moving up and down, the telescopic rod stretches out and draws back to conveniently drive the fixed block and the annular induction coil frame to ascend and descend, so that the induction coil arranged in the annular induction coil frame moves up and down on the outer sides of the welding machine head and the welding material frame to heat a welding area; and uniform heating is ensured, so that plastic deformation of the plastic part is promoted.
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Description

Technical Field

[0001] This utility model relates to the technical field of high-frequency plastic welding machines, specifically a high-frequency induced plastic welding machine with an up-and-down movable induction coil. Background Technology

[0002] High-frequency (HF) plastic welding machine is the preferred equipment for plastic heat sealing. It is a device that uses high-frequency electromagnetic radiation to heat plastic parts and melt and bond them together under certain pressure.

[0003] In the operation of existing high-frequency plastic welding machines, although the induction coil acts as a conduction path for the high-frequency electric field to directly heat the plastic parts, the fixed position of the induction coil may cause temperature differences in different parts of the heating area, making it difficult to achieve uniform heating. Utility Model Content

[0004] The purpose of this invention is to provide a high-frequency induced plastic welding machine with an up-and-down movable induction coil, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-frequency induced plastic welding machine with a movable induction coil, comprising a worktable, a welding head, and a motion induction coil assembly. A turntable is provided on the upper side of the worktable, and a rotating assembly is installed on the lower side of the middle of the turntable. A rear plate is fixed on one side of the worktable, and a cylinder is installed on the front side above the rear plate. A piston rod is provided on the lower side of the cylinder, and a lifting plate is fixed at the bottom of the piston rod. The welding head is installed on the lower side of the lifting plate, and a motion induction coil assembly is installed on the outer side of the lifting plate. The motion induction coil assembly includes a support plate, a telescopic rod, a fixing block, and an annular induction coil frame. The support plate is fixed on both sides above the lifting plate. A telescopic rod is installed on the lower side of one side of the support plate, and a fixing block is fixed at the bottom of the telescopic rod. An annular induction coil frame is fixed between the two fixing blocks.

[0006] Furthermore, the upper surface of the turntable is evenly provided with four placement slots, and welding material frames are installed inside the placement slots.

[0007] Furthermore, ear plates are fixed on both sides of the welding frame, and the ear plates are bolted to the mounting groove.

[0008] Furthermore, the rotating assembly includes a base frame, a support shaft, and a driven gear. The base frame is fixed to the lower side of the worktable, and the support shaft passing through the worktable is fixed in the middle of the turntable. A driven gear is installed on the lower side of the support shaft.

[0009] Furthermore, the rotating assembly also includes a lower rotating shaft and a driving gear. The lower rotating shaft is fixed to the lower side of the driven gear, and the lower rotating shaft is rotatably connected to the bottom frame. The driving gear is meshed with one side of the driven gear.

[0010] Furthermore, the rotating assembly also includes a motor shaft and a rotary motor. The motor shaft is located in the middle of the drive gear, and the rotary motor is mounted on the lower side of the motor shaft. The rotary motor is located on the upper surface of the base frame.

[0011] Furthermore, both support plates are inverted "L" shaped structures, and the annular induction ring frame is located on the outside of the welding head and is slidably connected to the welding head.

[0012] Furthermore, an induction heater is installed on one side above the lifting plate, and the induction heater is electrically connected to the induction coil inside the annular induction coil frame.

[0013] This utility model provides a high-frequency induced plastic welding machine with a movable induction coil, which has the following advantages:

[0014] This utility model is equipped with a motion induction coil assembly. The cylinder and piston rod facilitate the synchronous lifting and lowering of the lifting plate, welding head, and motion induction coil assembly. This allows the welding head to work with the lower welding material frame to weld the plastic parts in the welding material frame. At this time, the extension and retraction of the telescopic rod facilitates the lifting and lowering of the fixing block and the annular induction coil frame. This causes the induction coil set inside the annular induction coil frame to move up and down on the outside of the welding head and the welding material frame to heat the welding area, ensuring uniform heating and thus promoting the plastic deformation of the plastic parts.

[0015] This utility model is equipped with a rotating assembly. The ear plate and the mounting groove are bolted together to facilitate the disassembly and replacement of the welding material frame and the ear plate. The rotating motor and motor shaft facilitate the rotation of the drive gear. The drive gear and the driven gear are meshed together, so the driven gear, the lower rotating shaft and the support rotating shaft can be driven to rotate. In turn, the support rotating shaft drives the rotation of the turntable and the four welding material frames on its upper side, rotating the welding material frames to the lower side of the welding head, which facilitates the rotation and loading of plastic parts to improve production efficiency. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a high-frequency induced plastic welding machine with a vertically movable induction coil according to the present invention.

[0017] Figure 2 This is a schematic diagram of the motion induction coil assembly structure of a high-frequency induced plastic welding machine with a movable induction coil that can move up and down according to this utility model;

[0018] Figure 3This is a schematic diagram of the rotating component structure of a high-frequency induced plastic welding machine with a movable induction coil.

[0019] In the diagram: 1. Workbench; 2. Turntable; 3. Placement slot; 4. Welding material frame; 5. Ear plate; 6. Rotating assembly; 601. Base frame; 602. Support shaft; 603. Driven gear; 604. Lower shaft; 605. Driven gear; 606. Motor shaft; 607. Rotary motor; 7. Rear plate; 8. Cylinder; 9. Piston rod; 10. Lifting plate; 11. Induction heater; 12. Welding head; 13. Motion induction coil assembly; 1301. Support plate; 1302. Telescopic rod; 1303. Fixing block; 1304. Annular induction coil frame. Detailed Implementation

[0020] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0021] like Figure 1 and Figure 3As shown, a high-frequency induced plastic welding machine with a movable induction coil includes a worktable 1, a welding head 12, and a motion induction coil assembly 13. A turntable 2 is provided on the upper side of the worktable 1, and a rotating assembly 6 is installed on the lower side of the middle of the turntable 2. Four placement slots 3 are evenly opened on the upper surface of the turntable 2, and welding material frames 4 are installed inside the placement slots 3. Ear plates 5 are fixed on both sides of the welding material frames 4, and the ear plates 5 are bolted to the placement slots 3. The rotating assembly 6 includes a bottom frame 601, a support shaft 602, and a driven gear 603. The bottom frame 601 is fixed to the lower side of the worktable 1. The support shaft 602, which passes through the worktable 1, is fixed in the middle of the turntable 2, and the driven gear 603 is installed on the lower side of the support shaft 602. The rotating assembly 6 also includes a lower shaft 604 and a driving gear 605. The lower shaft 604 is fixed to the lower side of the driven gear 603, and the lower shaft 604 is connected to the bottom frame 601. The rotating assembly 6 also includes a motor shaft 606 and a rotary motor 607. The motor shaft 606 is located in the middle of the drive gear 605, and the rotary motor 607 is installed on the lower side of the motor shaft 606. The rotary motor 607 is located on the upper surface of the base frame 601. The ear plate 5 and the mounting groove 3 are bolted together to facilitate the disassembly and replacement of the welding material frame 4 and the ear plate 5. The rotary motor 607 and the motor shaft 606 facilitate the rotation of the drive gear 605. The drive gear 605 and the driven gear 603 are meshed together, so the driven gear 603, the lower rotating shaft 604 and the support rotating shaft 602 can be rotated. Thus, the support rotating shaft 602 drives the rotation of the turntable 2 and the four welding material frames 4 on its upper side, rotating the welding material frames 4 to the lower side of the welding head 12, which facilitates the rotation and feeding of plastic parts to improve production efficiency.

[0022] like Figure 1 and Figure 2As shown, a back plate 7 is fixed to one side of the workbench 1, and a cylinder 8 is installed on the front side above the back plate 7. A piston rod 9 is provided on the lower side of the cylinder 8, and a lifting plate 10 is fixed to the bottom of the piston rod 9. A welding head 12 is installed on the lower side of the lifting plate 10, and a motion sensing coil assembly 13 is installed on the outer side of the lifting plate 10. The motion sensing coil assembly 13 includes a support plate 1301, a telescopic rod 1302, a fixing block 1303, and an annular sensing coil frame 1304. The support plate 1301 is fixed to the upper two sides of the lifting plate 10. A telescopic rod 1302 is installed on the lower side of one side of the support plate 1301, and a fixing block 1303 is fixed to the bottom of the telescopic rod 1302. An annular sensing coil frame 1304 is fixed between the two fixing blocks 1303. Both support plates 1301 are inverted "L" shaped structures. The annular sensing coil frame 1304 is located on the outer side of the welding head 12 and is connected to the welding head 12. The welding head 12 is slidably connected up and down. An induction heater 11 is installed on one side above the lifting plate 10, and the induction heater 11 is electrically connected to the induction coil inside the annular induction coil frame 1304. The cylinder 8 and piston rod 9 facilitate the synchronous lifting and lowering of the lifting plate 10, the welding head 12, and the motion induction coil assembly 13, so that the welding head 12 cooperates with the welding material frame 4 below to weld the plastic parts in the welding material frame 4. At this time, the extension and retraction of the telescopic rod 1302 facilitates the lifting and lowering of the fixed block 1303 and the annular induction coil frame 1304, so that the induction coil set inside the annular induction coil frame 1304 moves up and down on the outside of the welding head 12 and the welding material frame 4 to heat the welding area, ensuring uniform heating and thus promoting the plastic deformation of the plastic parts. The output power of the induction heater 11 can be adjusted under the control of the temperature controller to adjust the heating temperature of the induction coil.

[0023] In summary, as Figures 1-3 As shown, this high-frequency induced plastic welding machine with a movable induction coil can be used by first installing the ear plates 5 on both sides of the welding frame 4 into the placement groove 3 with bolts. Then, the plastic part to be processed is placed into the welding frame 4. The drive gear 605 is driven to rotate by the rotary motor 607 and the motor shaft 606. The drive gear 605 is meshed with the driven gear 603, so it can drive the driven gear 603, the lower rotating shaft 604 and the support rotating shaft 602 to rotate. In turn, the support rotating shaft 602 drives the turntable 2 and the four welding frames 4 on its upper side to rotate, and rotates the welding frames 4 to the lower side of the welding head 12.

[0024] Then, the cylinder 8 and piston rod 9 drive the lifting plate 10, the welding head 12 and the motion induction coil assembly 13 to descend, so that the welding head 12 cooperates with the welding material frame 4 on the lower side to weld the plastic parts in the welding material frame 4. During this process, the extension and retraction of the telescopic rod 1302 can drive the lifting and lowering of the fixed block 1303 and the annular induction coil frame 1304, so that the induction coil set inside the annular induction coil frame 1304 moves up and down on the outside of the welding head 12 and the welding material frame 4 to heat the welding area, ensuring uniform heating and thus promoting the plastic deformation of the plastic parts. The induction heater 11 can adjust the output power under the control of the temperature controller to adjust the heating temperature of the induction coil. This completes the use process of the high-frequency induced plastic welding machine with a movable induction coil.

[0025] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A high-frequency induced plastic welding machine with a movable induction coil, comprising a worktable (1), a welding head (12), and a motion induction coil assembly (13), characterized in that, A turntable (2) is provided on the upper side of the workbench (1), and a rotating assembly (6) is installed on the lower middle part of the turntable (2). A back plate (7) is fixed on one side of the workbench (1), and a cylinder (8) is installed on the upper front side of the back plate (7). A piston rod (9) is provided on the lower side of the cylinder (8), and a lifting plate (10) is fixed at the bottom of the piston rod (9). A welding head (12) is installed on the lower side of the lifting plate (10), and a motion sensing coil assembly (13) is installed on the outer side of the lifting plate (10). The motion sensing coil assembly (13) includes a support plate (1301), a telescopic rod (1302), a fixing block (1303), and an annular sensing coil frame (1304). The support plate (1301) is fixed on both sides above the lifting plate (10). A telescopic rod (1302) is installed on the lower side of one side of the support plate (1301), and a fixing block (1303) is fixed at the bottom of the telescopic rod (1302). An annular sensing coil frame (1304) is fixed between the two fixing blocks (1303).

2. The high-frequency induced plastic welding machine with a vertically movable induction coil as described in claim 1, characterized in that, The upper surface of the turntable (2) is evenly provided with four placement slots (3), and a welding frame (4) is installed inside the placement slots (3).

3. The high-frequency induced plastic welding machine with a vertically movable induction coil according to claim 2, characterized in that, The welding frame (4) is fixed with ear plates (5) on both sides, and the ear plates (5) are bolted to the mounting groove (3).

4. The high-frequency induced plastic welding machine with a vertically movable induction coil according to claim 1, characterized in that, The rotating assembly (6) includes a base frame (601), a support shaft (602), and a driven gear (603). The base frame (601) is fixed to the lower side of the worktable (1). The middle part of the turntable (2) is fixed with a support shaft (602) that passes through the worktable (1), and the driven gear (603) is installed on the lower side of the support shaft (602).

5. A high-frequency induced plastic welding machine with a vertically movable induction coil according to claim 4, characterized in that, The rotating assembly (6) further includes a lower rotating shaft (604) and a driving gear (605). The lower rotating shaft (604) is fixed to the lower side of the driven gear (603), and the lower rotating shaft (604) is rotatably connected to the bottom frame (601). The driving gear (605) is meshed on one side of the driven gear (603).

6. A high-frequency induced plastic welding machine with a vertically movable induction coil according to claim 5, characterized in that, The rotating assembly (6) further includes a motor shaft (606) and a rotary motor (607). The motor shaft (606) is provided in the middle of the drive gear (605), and the rotary motor (607) is installed on the lower side of the motor shaft (606). The rotary motor (607) is located on the upper surface of the bottom frame (601).

7. A high-frequency induced plastic welding machine with a vertically movable induction coil according to claim 1, characterized in that, Both support plates (1301) are inverted "L" shaped structures, and the annular induction ring (1304) is located on the outside of the welding head (12) and is slidably connected to the welding head (12) up and down.

8. A high-frequency induced plastic welding machine with a vertically movable induction coil according to claim 1, characterized in that, An induction heater (11) is installed on one side above the lifting plate (10), and the induction heater (11) is electrically connected to the induction coil inside the annular induction coil frame (1304).