High-frequency welding equipment for water sliding channel

Abstract

The invention discloses high-frequency welding equipment for a water sliding channel. The high-frequency welding equipment comprises an unwinding device, a positioning device, a first clamping and conveying device, a high-frequency welding device, a second clamping and conveying device and a controller which are sequentially arranged along the working procedure. During working, the unwinding device unwinds a bottom belt and a combination belt, after the bottom belt and the combination belt are aligned through the positioning device, the first clamping and conveying device clamps the bottom belt and the combination belt and conveys the bottom belt and the combination belt to the high-frequency welding device section by section for welding and fixing, and then the second clamping and conveying device conveys welding sections for discharging. All the devices are controlled by a controller in a coordinated mode, and full-automatic continuous production from unwinding, alignment, welding to discharging is achieved. The problems that traditional manual operation is low in efficiency and poor in consistency are solved, and the production automation degree, the product consistency and the production efficiency are remarkably improved.

Description

Technical Field

[0001] This application relates to the technical field of water slide production, and more specifically, it relates to a high-frequency welding device for water slides. Background Technology

[0002] Water slides, as common water recreation facilities, typically consist of a base and an connecting strip. The connecting strip can be inflated to form a safety barrier or filled with water to create a fountain for lubrication, thus enhancing the ride experience. To ensure the structural stability and safety of the water slide, the base and connecting strip must be connected using a reliable process. Currently, the industry commonly uses high-frequency welding technology to achieve this connection. This technology utilizes a high-frequency electromagnetic field to heat and melt the materials internally, resulting in a strong bond, good sealing, and high efficiency.

[0003] However, most existing high-frequency welding equipment is semi-automatic, and it still has many shortcomings in actual operation. Specifically, the operator must first lay the base strip on the worktable of the high-frequency equipment, and then place the bonding strip in the corresponding position on the base strip according to the process requirements. Subsequently, the equipment performs preliminary welding on several positioning points to fix the relative positions. After that, in the segmented welding process, manual pulling is required to move the base strip and bonding strip synchronously, and the position of the bonding strip must be readjusted after each shift to ensure welding alignment accuracy. This process is not only labor-intensive and requires a high level of operator skill, but the welding cycle is also limited by the speed of manual operation, resulting in low overall production efficiency. In addition, frequent manual intervention can easily cause material displacement or alignment deviation, affecting the consistency and quality stability of the products. Summary of the Invention

[0004] To address the problems of low efficiency, high labor intensity, and poor product consistency of existing high-frequency welding equipment used in water slide manufacturing, this application provides a high-frequency welding device for water slides.

[0005] A high-frequency welding device for a water slide includes an unwinding device, a positioning device, a first clamping and conveying device, a high-frequency welding device, a second clamping and conveying device, and a controller arranged in sequence. According to the processing steps, the unwinding device is used to unwind the base strip and the connecting strip. After the base strip and the connecting strip are positioned by the positioning device, they are positioned and bonded by the first clamping and conveying device. The first clamping and conveying device clamps the continuous base strip and the connecting strip and conveys them segment by segment to the high-frequency welding device. The high-frequency welding device welds the base strip and the connecting strip segment by segment to fix them. The second clamping and conveying device conveys the welded segment of the base strip and the connecting strip from the high-frequency welding device.

[0006] The unwinding device, the first clamping conveyor, the high-frequency welding device, and the second clamping conveyor are all electrically connected to the controller.

[0007] By adopting the above technical solution, integrating unwinding, positioning, clamping and conveying, welding and unloading devices, and coordinating them under a unified controller, uninterrupted, fully automated continuous production from raw materials to welded finished products is achieved. This eliminates the tedious steps of manual tape laying, traction, alignment, and segmented welding, significantly reducing labor intensity and reliance on operator skill. Furthermore, by controlling the production cycle with equipment, overall production efficiency and product consistency are significantly improved.

[0008] Preferably, the unwinding device includes an unwinding frame, and a swinging component is provided on the bottom side of the unwinding frame away from the positioning device. The swinging component is rotatably connected to a bottom unwinding roller. Two connecting unwinding rollers arranged vertically are detachably and rotatably provided on the top of the unwinding frame. A first gear is coaxially provided at one end of each of the two connecting unwinding rollers. A damping motor is provided on the unwinding frame at the position corresponding to the two connecting unwinding rollers. A second gear is coaxially provided on the drive shaft of the damping motor. In the corresponding damping motor and connecting unwinding roller, the first gear meshes with the second gear.

[0009] By adopting the above technical solution, a gear transmission mechanism with a damping motor is configured for the two combined unwinding rollers, which can provide controllable resistance for unwinding the combined belt, preventing excessive loosening or stretching of the material due to inertia, and ensuring stable material tension in subsequent processes. At the same time, placing the bottom unwinding roller at the bottom of the unwinding frame with the swing assembly provides space and flexibility for subsequent roll changing operations.

[0010] Preferably, the swing assembly includes a rotating shaft rotatably mounted on the unwinding frame, swing arms respectively hinged to both ends of the rotating shaft, and swing cylinders for driving the swing arms to swing. One end of the bottom unwinding roller is detachably connected to the end of one swing arm away from the rotating shaft and rotates therefrom. The other end of the bottom unwinding roller is detachably connected to the end of another swing arm away from the rotating shaft and rotates therefrom. There are two swing cylinders. The bottom ends of both swing cylinders are hinged to the middle of the unwinding frame, and the two swing cylinders are aligned one-to-one with the two swing arms. The swing cylinders in opposite positions are hinged to the swing arms.

[0011] By adopting the above technical solution, the swing cylinder drives the swing arm to swing the bottom strip unwinding roller as a whole. When the bottom strip roll is used up and needs to be replaced, the empty roller can be quickly swung to a position that is easy to disassemble and load with a new roll. This simplifies the material changing operation, shortens the equipment downtime for maintenance, and further ensures the efficiency of continuous production.

[0012] Preferably, the positioning device includes a positioning frame. Two connecting belt positioning shafts are rotatably arranged vertically on the top side of the positioning frame near the unwinding device. The two connecting belt positioning shafts are parallel to each other. Each connecting belt positioning shaft is movably fitted with multiple first positioning rings, and each first positioning ring is fitted with a bolt. The bolts are used to secure the connecting belt positioning shaft to the connecting belt positioning shaft. The positioning frame also has three bottom belt positioning shafts rotatably arranged in a triangular pattern. All three bottom belt positioning shafts are parallel to the connecting belt positioning shaft. Two bottom belt positioning shafts are located at the bottom of the positioning frame, and the third bottom belt positioning shaft is located at the top of the positioning frame, between the two bottom bottom belt positioning shafts. Each bottom belt positioning shaft is fitted with two second positioning rings, and each second positioning ring is fitted with a bolt. The bolts are used to secure the bottom belt positioning shaft to the bottom belt positioning shaft.

[0013] By adopting the above technical solution, and setting multiple adjustable first positioning rings for the bonding strip positioning shaft and adjustable second positioning rings for the bottom strip positioning shaft, the relative positions of the bottom strip and the bonding strip in the width direction can be flexibly and accurately adjusted to achieve initial alignment, laying the foundation for subsequent precise welding. The triangular arrangement of the bottom strip positioning shafts helps guide and stretch the bottom strip, preventing wrinkles.

[0014] Preferably, the top of the positioning frame is further provided with a positioning plate whose length direction is parallel to the axis of the positioning shaft of the connecting belt. The positioning plate has two slots extending along its length direction. The two slots are arranged at intervals along the width direction of the positioning plate. Multiple limiting pieces are movably provided on the top surface of the positioning plate. Each limiting piece has a circular sliding rod with a diameter matching the width of the slot at both ends. The two circular sliding rods are inserted into the two slots respectively to slide. Each circular sliding rod is provided with threads, and the part of it below the positioning plate is threaded to a clamping block. The positioning plate is clamped by the clamping block and the limiting piece to fix the limiting piece to the top surface of the positioning plate. The positioning frame is also provided with a pressure shaft on the side of the positioning plate away from the unwinding device. The pressure shaft is arranged parallel to the positioning shaft of the connecting belt.

[0015] By adopting the above technical solution, the limiting plate, which can slide and lock along the slot, can be quickly adjusted and accurately positioned according to the width specifications of the connecting belt, effectively preventing lateral deviation of the connecting belt during conveying. The pressure shaft can limit the material's upper and lower positions before it enters the conveying device and works in conjunction with the connecting belt positioning shaft to ensure that the connecting belt is conveyed flat on the positioning plate, resulting in accurate positioning of the connecting belt.

[0016] Preferably, the positioning frame is provided with a gravity tensioning mechanism, which includes sliding components arranged along the axis of the bottom belt positioning shaft and gravity shafts connected at both ends to the two sliding components respectively. The gravity shafts are parallel to the bottom belt positioning shaft. Each sliding component includes two vertical shafts, and each vertical shaft has a sliding bushing. The two bushings are connected to a connecting block, and the gravity shaft is connected to the connecting block.

[0017] By adopting the above technical solution, the gravity axis of the sliding component can fall freely, using its own weight to apply a constant, flexible tension force to the bottom strip it passes through. This automatically compensates for the slack in the bottom strip caused by slight fluctuations in unwinding speed or uneven material thickness, ensuring that the bottom strip remains flat and has uniform tension before entering the welding zone, thus avoiding welding wrinkles or misalignment caused by material slack.

[0018] Preferably, the first clamping and conveying device includes a first conveying frame and two first clamping assemblies. The first conveying frame has first conveying shafts rotatably mounted on both sides near the positioning device and the high-frequency welding device. A first support cylinder is rotatably mounted in the middle of each of the two first conveying shafts. A first conveyor belt for supporting the bottom belt is sleeved on the two first support cylinders, and a first transmission belt is sleeved on the ends of the two first conveying shafts. Two first slide rails are also provided on the first conveying frame between the two first conveying shafts. The two first slide rails correspond to the two ends of the first conveying shafts respectively and are perpendicular to the first conveying shafts on a horizontal plane. Each first slide rail... Each slide rail has two first sliders. One of the first sliders of the two first slide rails is connected to a first clamping assembly, and the other first slider of the two first slide rails is connected to another first clamping assembly. One first clamping assembly is located near the high-frequency welding device, and the first slider connected to the first clamping assembly is locked to the first slide rail by bolts. The other first clamping assembly is located near the positioning device and is connected to the first transmission belt. The first clamping assembly is used to clamp the first conveyor belt and the bottom belt and connecting belt laid on the first conveyor belt or to release the clamp.

[0019] By adopting the above technical solution, the sliding first clamping component driven by the first transmission belt can automatically clamp the pre-positioned base belt and bonding belt, and accurately transport them a certain distance to the working area of ​​the high-frequency welding device. The design of one clamping component being fixed while the other moves achieves a "stepping" conveying method, completely replacing the manual material traction step in the original process. This ensures movement accuracy and synchronization, providing the core driving force for automated segment-by-segment welding.

[0020] Preferably, the second clamping and conveying device includes a second conveying frame and two second clamping assemblies. The second conveying frame has second conveying shafts rotatably mounted on its sides near and away from the high-frequency welding device. Second support cylinders are rotatably mounted on each of the two second conveying shafts. A second conveyor belt for supporting the bottom belt is sleeved on each of the two second support cylinders. A second transmission belt is shared at the ends of both second conveying shafts. Two second slide rails are also provided on the second conveying frame between the two second conveying shafts. The two second slide rails correspond to the two ends of the second conveying shafts and are perpendicular to the second conveying shafts on a horizontal plane. Each second slide rail is slidably connected to two second sliders. One of the second sliders of each of the two second slide rails is connected to one of the second clamping assemblies. Each of the two second slide rails has another second slider connected to another second clamping assembly. One second clamping assembly is located on the side closer to the high-frequency welding device, and the second slider connected to the second clamping assembly is locked to the second slide rail by bolts. The other second clamping assembly is located on the side away from the high-frequency welding device, and the second clamping assembly is connected to the second transmission belt. The second clamping assembly is used to clamp the second conveyor belt and the bottom belt and connecting belt laid on the second conveyor belt or to release the clamp. The first conveyor shaft and the second conveyor shaft close to the high-frequency welding device are jointly fitted with a linkage belt. A servo motor is provided on the second conveyor frame, and the servo motor is connected to one of the second conveyor shafts to drive the second conveyor shaft to reciprocate.

[0021] By adopting the above technical solution, the second clamping and conveying device uses a clamping and conveying structure similar to the first device but driven independently, responsible for pulling the welded sections out of the welding station. Through the precise control of the linkage belt and servo motor, the first and second conveying devices and the high-frequency welding process are synchronized and coordinated, forming a complete automated cycle of clamping, welding, and pulling out, enabling continuous, equidistant, and high-quality segment-by-segment welding to be carried out efficiently.

[0022] Preferably, the first clamping device includes a first bottom clamping plate, a first gantry frame, a first top clamping plate, and a first lifting cylinder. The first bottom clamping plate is connected to the first slider and extends through the inside of the first conveyor belt. The first gantry frame is disposed on the first bottom clamping plate, and its crossbar is above the conveying surface of the first conveyor belt and spans the first conveyor belt. The first lifting cylinder is disposed on the crossbar of the first gantry frame, and its piston rod points downward. The first top clamping plate is connected to the piston rod of the first lifting cylinder. The first lifting cylinder drives the first top clamping plate to move closer to or away from the first bottom clamping plate. The second clamping device includes a second bottom clamping plate, a second gantry frame, a second top clamping plate, and a second lifting cylinder. The second bottom clamping plate is connected to the second slider and passes through the second conveyor belt from the inside. The second gantry frame is disposed on the second bottom clamping plate, and its crossbar is above the conveying surface of the second conveyor belt and spans the second conveyor belt. The second lifting cylinder is disposed on the crossbar of the second gantry frame, and its piston rod is downward. The second top clamping plate is connected to the piston rod of the second lifting cylinder. The second top clamping plate is driven to move closer to or away from the second bottom clamping plate by the second lifting cylinder.

[0023] By adopting the above technical solution, a gantry structure is used, in which a bottom clamping plate cooperates with a top clamping plate driven by a lifting cylinder, resulting in a large and uniform clamping force. The bottom clamping plate extends from the inside of the conveyor belt, while the top clamping plate presses down, reliably clamping the conveyor belt and the bottom and connecting belts it carries. This ensures that there is no relative slippage between the material and the conveyor belt during the conveying process, thereby guaranteeing the consistency of each conveying step.

[0024] Preferably, the high-frequency welding device includes a mounting frame, a third lifting cylinder disposed on the top of the mounting frame, a lifting platform connected to the third lifting cylinder, a positive guide plate disposed on the bottom surface of the lifting platform, a worktable disposed on the mounting frame and located below the lifting platform, a negative guide plate disposed on the top of the worktable, and a high-frequency source disposed on one side of the mounting frame. The positive guide plate is provided with a positive guide strip, the positive electrode of the high-frequency source is connected to the positive guide plate, and the negative electrode of the high-frequency source is connected to the negative guide plate.

[0025] By adopting the above technical solution, a lifting platform driven by a third lifting cylinder and equipped with a positive guide plate is used, which cooperates with a negative guide plate fixed on the worktable. This design, where the upper mold moves and the lower mold is fixed, facilitates the automated conveying system to feed materials into and out of the welding area. The lifting cylinder can provide stable and controllable welding pressure, and combined with a high-frequency source, it ensures that the heat and pressure parameters of each welding point are consistent, thereby obtaining a high-quality weld with a strong connection and good sealing performance.

[0026] The beneficial technical effects of this application are as follows: It integrates unwinding, positioning, clamping and conveying, welding, and unloading devices, all coordinated by a controller, achieving uninterrupted, fully automated continuous production from raw materials to welded finished products. This eliminates the cumbersome steps of manual tape laying, traction, alignment, and segmented welding, significantly reducing labor intensity and reliance on operator skill. Furthermore, it allows for equipment-controlled production rhythm, significantly improving overall production efficiency and product consistency. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of a high-frequency welding device for a water slide according to this embodiment.

[0028] Figure 2 This is a schematic diagram of the connection structure between the unwinding device and the positioning device in this embodiment.

[0029] Figure 3 This is a schematic diagram of the structure of the first clamping and conveying device in this embodiment.

[0030] Figure 4 This is a schematic diagram of the high-frequency welding device in this embodiment.

[0031] Figure 5 This is a schematic diagram of the structure of the second clamping device in this embodiment.

[0032] Reference numerals: 1. Unwinding device; 11. Unwinding frame; 12. Swing assembly; 121. Rotating shaft; 122. Swing arm; 123. Swing cylinder; 13. Bottom belt unwinding roller; 14. Connecting belt unwinding roller; 141. First gear; 15. Damping motor; 151. Second gear; 2. Positioning device; 21. Positioning frame; 22. Connecting belt positioning shaft; 221. First positioning ring; 23. Bottom belt positioning shaft; 231. Second positioning ring; 24. Positioning plate; 241. Slot; 242. Limiting piece; 243. Circular slide bar; 25. Gravity tensioning mechanism; 251. Vertical shaft; 252. Bushing; 253. Connecting block; 254. Gravity shaft; 3. First clamping conveyor device; 31. First conveyor frame; 32. First conveyor shaft; 33. First support cylinder; 34. First conveyor belt; 35. First transmission belt; 36. First slide rail; 37. First slider; 38. First clamping assembly; 381. First bottom clamping plate; 382. First gantry frame; 383. First lifting cylinder; 384. First top clamping plate; 4. High-frequency welding device; 41. Mounting frame; 42. Third lifting cylinder; 43. Lifting platform; 44. Positive guide plate; 45. Positive guide strip; 46. Workbench; 47. Negative guide plate; 48. High-frequency source; 5. Second clamping and conveying device; 51. Second conveyor frame; 511. Servo motor; 52. Second conveyor shaft; 53. Second support cylinder; 54. Second conveyor belt; 55. Second transmission belt; 56. Second slide rail; 57. Second slider; 58. Second clamping assembly; 581. Second bottom clamping plate; 582. Second gantry frame; 583. Second lifting cylinder; 584. Second top clamping plate; 59. Linkage belt; 6. Controller; Detailed Implementation

[0033] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0034] Reference Figure 1 A high-frequency welding device for water slides integrates an unwinding device 1, a positioning device 2, a first clamping conveyor 3, a high-frequency welding device 4, and a second clamping conveyor 5 in sequence along the processing direction. Each device is uniformly coordinated and controlled by a central controller 6, realizing fully automatic continuous production of the water slide bottom belt and the bonding belt from raw materials to welded finished products.

[0035] Reference Figure 1 and Figure 2The unwinding device 1 is located at the beginning of the production line and includes an unwinding frame 11. A swing assembly 12 is installed on the bottom side of the unwinding frame 11 away from the positioning device 2. The swing assembly 12 includes a horizontally rotatable shaft 121 mounted on the unwinding frame 11, with a swing arm 122 hinged to each end of the shaft 121. The bottom ends of two swing cylinders 123 are hinged to the middle of the unwinding frame 11, and the top of the piston rod of each swing cylinder 123 is hinged to the corresponding swing arm 122. A bottom strip unwinding roller 13 for holding the bottom strip roll is rotatably connected to the ends of the two swing arms 122 via a detachable connection. Specifically, keyways are machined at both ends of the bottom strip unwinding roller 13, and bearing seats with flat keys are installed at the ends of the two swing arms 122. After the roller end is inserted into the bearing seat, it is axially fixed by a lock nut. This design allows the controller 6 to activate the swing cylinder 123 when the bottom strip roll is exhausted, driving the swing arm 122 to swing the entire bottom strip unwinding roller 13 upwards to a corner position convenient for the operator to change the roll. After the material change is completed, it swings back to the horizontal working position. At the top of the unwinding frame 11, two connecting strip unwinding rollers 14 are detachably and rotatably mounted, arranged vertically. These two unwinding rollers are used to unwind connecting strip rolls with different functions: the upper unwinding roller is used to unwind the connecting strip that will subsequently form an inflatable guardrail, while the lower unwinding roller is used to unwind the connecting strip that will subsequently form a water-lubricated strip. The installation method of each connecting strip unwinding roller 14 is similar to that of the bottom strip unwinding roller 13, and its roller shaft end is also detachably rotatably mounted by engaging a bearing seat via a keyway. A first gear 141 (not shown in the figure) is coaxially fixed at one end of each connecting strip unwinding roller 14. Correspondingly, a damping motor 15 is configured on the unwinding frame 11 for each bonding strip unwinding roller 14. A second gear 151 is coaxially fixed on the drive shaft of each damping motor 15, and the second gear 151 is always meshed with the first gear 141 on the corresponding unwinding roller. The damping motor 15 provides a controllable resistance torque during operation, thereby providing a stable and adjustable tension for the unwinding process of the two bonding strips, effectively preventing the material from becoming excessively loose due to inertia.

[0036] Reference Figure 1 and Figure 2The positioning device 2 follows immediately after the unwinding device 1 and includes a positioning frame 21. Two bonding tape positioning shafts 22 are rotatably mounted on the top of the positioning frame 21, near the unwinding device 1, arranged parallel to each other vertically. These two shafts guide the two types of bonding tape from the upper and lower bonding tape unwinding rollers 14, respectively. Multiple first positioning rings 221 are movably fitted onto each bonding tape positioning shaft 22. Each first positioning ring 221 is equipped with a locking bolt. When the bolt is tightened, the bolt end abuts against the shaft body, fixing the first positioning ring 221 to any lateral position on the shaft, thereby adjusting its lateral limiting point according to the specific width specification of the bonding tape. Three bottom tape positioning shafts 23 are also rotatably mounted on the positioning frame 21, all parallel to the bonding tape positioning shafts 22 and arranged in a stable triangular pattern. Specifically, two of the bottom tape positioning shafts 23 are located at the bottom of the positioning frame 21, and the third is located at the top of the positioning frame 21, directly above the middle of the two bottom shafts. Each bottom belt positioning shaft 23 is also fitted with two second positioning rings 231, which are also fixed to the shaft by bolts to constrain the width direction position of the bottom belt. A positioning plate 24, parallel to the axis of each shaft in its length direction, is also horizontally fixed to the top of the positioning frame 21. This positioning plate 24 has two spaced, narrow slots 241 machined along its length. Multiple limiting pieces 242 are movably mounted on the top surface of the positioning plate 24. Each limiting piece 242 has two ends extending downwards vertically with circular sliding rods 243 whose diameter precisely matches the width of the slots 241. These two sliding rods are inserted into the two slots 241 respectively, allowing the limiting pieces 242 to slide and adjust their position along the length of the slots 241. The portion of the sliding rod below the positioning plate 24 is machined with external threads and screwed with clamping blocks. By tightening the clamping block, it clamps the positioning plate 24 together with the upper limiting piece 242, thus firmly locking the limiting piece 242 in the required lateral position. This precisely guides and restricts the conveying path of the bonding belt, preventing lateral deviation. On the side of the positioning plate 24 away from the unwinding device 1, a pressure shaft parallel to the aforementioned axes is rotatably mounted on the positioning frame 21. This pressure shaft cooperates with the bonding belt positioning shaft 22, ensuring that the bonding belt remains flat and tightly adhered to the surface of the positioning plate 24 before entering the next process. In addition, an automated gravity tensioning mechanism 25 is installed on the positioning frame 21 for dynamically adjusting the tension of the bottom belt. This mechanism includes two sliding components symmetrically arranged along the axis of the bottom belt positioning shaft 23. Each sliding component consists of two vertical shafts 251 fixed vertically on the positioning frame 21 and bushings 252 slidably sleeved on these two vertical shafts 251. The two bushings 252 of the same component are connected by a horizontal connecting block 253. The two ends of a gravity shaft 254 are fixed to the connecting blocks 253 of the two sliding components respectively. The weight of the gravity shaft 254 allows the entire sliding component to float freely up and down along the vertical axis 251.

[0037] Reference Figure 1 and Figure 2 During the actual material feeding process, the bottom strip is wound onto the bottom strip unwinding roller 13 in a drum form. After being drawn from the unwinding roller, the bottom strip first passes through and adheres to the lower edge of the bottom strip positioning shaft 23 closest to the unwinding device 1 in the positioning device 2, then goes down and around the lower edge of the gravity shaft 254, then goes up through and adheres to the upper edge of the bottom strip positioning shaft 23 at the top of the positioning frame 21, and finally goes down through and adheres to the lower edge of the bottom strip positioning shaft 23 closest to the first clamping conveyor 3, after which it is laid flat on the conveyor belt of the first clamping conveyor 3. This ingenious S-shaped winding path, combined with the floating downward pressure generated by the gravity shaft 254 due to its own weight, can continuously provide a constant and flexible tension for the bottom strip, automatically compensating for slack caused by slight fluctuations in unwinding speed or uneven material thickness, ensuring that the bottom strip remains flat and has uniform tension before entering the welding zone. The two bonding strips are wound onto the upper and lower bonding strip unwinding rollers 14 in a drum form. After being drawn out from their respective unwinding rollers, they are guided to the corresponding bonding belt positioning shaft 22 for guidance and initial positioning, and then conveyed to the positioning plate 24. Under the joint constraint and guidance of the sliding locking limit piece 242 and the pressure shaft, the two bonding belts are accurately aligned and conveyed flat to the predetermined position, ready to be bonded to the bottom belt below.

[0038] Reference Figure 1 and Figure 3The first clamping and conveying device 3 is responsible for receiving the positioned and stacked bottom and connecting belts, and feeding them into the welding station in a precise stepping manner. This device includes a first conveyor frame 31. A first conveyor shaft 32 is rotatably mounted on the side of the first conveyor frame 31 near the positioning device 2 and the side near the high-frequency welding device 4, respectively. A first support cylinder 33 is rotatably fitted onto the middle of each first conveyor shaft 32 via a bearing. A closed first conveyor belt 34 is fitted onto both first support cylinders 33 for carrying and conveying materials. A pulley is fixedly mounted at one end of each of the two first conveyor shafts 32, and they are connected by a closed first transmission belt 35 to achieve synchronous rotation. Two first slide rails 36 are arranged parallel to each other on the first conveyor frame 31 in the area between the two first conveyor shafts 32. These two slide rails are perpendicular to the axis of the first conveyor shafts 32 on the horizontal plane. Two first sliders 37 are slidably mounted on each first slide rail 36. Two identical first clamping assemblies 38 are connected to these sliders respectively. Specifically, the first clamping assembly 38 closer to the high-frequency welding device 4 has its bottom structure fixedly connected to a first slider 37 on the corresponding first slide rail 36, and this slider can be bolted to any position on the first slide rail 36, thereby keeping the position of this clamping assembly fixed. The first clamping assembly 38 closer to the positioning device 2 has its bottom structure fixedly connected to another first slider 37 on the corresponding first slide rail 36, and this clamping assembly is connected to one side of the first transmission belt 35 via a mechanical connector. Each first clamping assembly 38 adopts a gantry structure, which includes a long strip of first bottom clamping plate 381, which is connected to its corresponding first slider 37 and passes through the belt gap from the inside of the first conveyor belt 34. A first gantry 382 is fixedly mounted on the first bottom clamping plate 381, and its crossbeam portion spans over the first conveyor belt 34. A first lifting cylinder 383 is inverted and installed in the center of the crossbeam of the first gantry 382, ​​with its piston rod pointing vertically downwards. A first top clamping plate 384 is connected to the end of the piston rod of the first lifting cylinder 383. After the positioned bottom belt and connecting belt are conveyed to the correct position of the first conveyor belt 34, the controller 6 commands the first lifting cylinder 383, which is close to the first clamping assembly 38 of the positioning device 2, to actuate, driving the first top clamping plate 384 to descend. This, in conjunction with the first bottom clamping plate 381 extending from below, firmly clamps the first conveyor belt 34 and the bottom belt and connecting belt it carries in the middle. The fixed clamping assembly remains open. At the same time, the movable clamping assembly, driven by the first transmission belt 35, moves a preset precise distance along the first slide rail 36 toward the high-frequency welding device 4. This action drags the material forward one step, thereby accurately feeding a new piece of material into the welding area.After the conveying process is complete, the movable clamping assembly releases and returns to its initial position, ready for the next work cycle. The clamping assembly near the high-frequency welding equipment then clamps the conveyor belt, base belt, and bonding belt to secure them during welding, maintaining welding stability. This process replaces manual traction in traditional methods, achieving precise and synchronized automated material conveying.

[0039] Reference Figure 1 and Figure 4 The high-frequency welding device 4 is responsible for welding and curing the incoming material segment. It includes a robust mounting frame 41. A third lifting cylinder 42 is mounted on the top of the mounting frame 41, with its piston rod pointing vertically downwards and connected to a lifting platform 43. A positive guide plate 44 is mounted on the bottom surface of the lifting platform 43, and a positive guide strip 45 that determines the shape of the weld seam is mounted on the positive guide plate 44. A workbench 46 is fixed on the mounting frame 41 directly below the lifting platform 43, and a negative guide plate 47 corresponding to the positive guide plate 44 is mounted on the top of the workbench 46. A high-frequency source 48 is located beside the mounting frame 41, with its positive output terminal electrically connected to the positive guide plate 44 via a wire, and its negative output terminal electrically connected to the negative guide plate 47 via a wire. When the material segment is precisely delivered by the first clamping and conveying device 3 to the area between the positive guide plate 44 and the negative guide plate 47, the controller 6 activates the third lifting cylinder 42, driving the lifting platform 43 to move the positive guide plate 44 downward, pressing the overlapping bottom strip and bonding strip tightly onto the negative guide plate 47 of the worktable 46. At the same time, the high-frequency source 48 starts working, and the high-frequency current passes through the positive and negative guide plates 47 to form a high-frequency electromagnetic field between them, causing the molecules inside the pressed plastic material to generate intense friction and heat up and melt. Under continuous pressure, they fuse together, and after cooling, a strong and sealed weld seam is formed between them. The number of positive guide pressure strips 45 matches the number of bonding strips.

[0040] Reference Figure 1 and Figure 5The second clamping conveyor 5 has a similar structural principle to the first clamping conveyor 3, and is specifically responsible for smoothly pulling the welded material segments out of the welding station and sending them to the unloading area. It includes a second conveyor frame 51, two rotatably mounted second conveyor shafts 52, a second conveyor belt 54 sleeved on the second support cylinder 53, and a second drive belt 55 connecting the pulleys at the ends of the second conveyor shafts 52. Two second slide rails 56 are arranged parallel to each other on the second conveyor frame 51, and two second sliders 57 are slidably connected to each second slide rail 56. Two identical second clamping assemblies 58 are connected to these sliders respectively. One second clamping assembly 58 is located on the side closer to the high-frequency welding device 4 and is fixed in position, while the other is located on the side further away and is connected to the second drive belt 55 via a connector, thus enabling it to move. The specific structure of the second clamping assembly 58 is the same as that of the first clamping assembly 38, and also includes a second bottom clamping plate 581, a second gantry frame 582, a second lifting cylinder 583, and a second top clamping plate 584. To achieve synchronization of the entire production cycle, the pulleys at the ends of the first conveyor shaft 32 and the second conveyor shaft 52, which are close to the high-frequency welding device 4, are connected together by a linkage belt 59. A servo motor 511 is installed on the second conveyor frame 51, which drives one of the second conveyor shafts 52 to perform precise reciprocating rotation through a reduction mechanism. The working principle of the entire automated cycle is as follows: When the high-frequency welding device 4 is welding a section of new material, the clamping component fixed in position on the second clamping conveyor device 5 has already clamped the tail of the previously welded material. After the welding process is completed, the fixed first clamping component 38 and the second clamping component 58 release the clamp, the servo motor 511 starts, and drives the second conveyor shaft 52 to rotate. This rotation is transmitted to the first conveyor shaft 32 via the linkage belt 59, and then to the movable clamping component in the second clamping conveyor device 5 via the second transmission belt 55, thereby pulling the welded material segment out of the welding station. The movable first clamping component 38 then moves to send a new material segment into the high-frequency welding equipment. This cycle repeats continuously, achieving fully automated, high-precision, and synchronous production of material conveying, welding, and unloading.

[0041] In summary, this application realizes a complete automated process from automatic unwinding, tension control, precise alignment, step conveying, automatic high-frequency welding to automatic traction and unloading of finished products for the dual-type combined belt and bottom belt. It eliminates the manual belt laying, traction, alignment and segmented welding links in the traditional process, thereby fundamentally improving production efficiency, ensuring the consistency of product size and welding quality, and significantly reducing the labor intensity of operators.

[0042] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-frequency welding device for water slides, characterized in that: The device includes an unwinding device, a positioning device, a first clamping conveyor, a high-frequency welding device, a second clamping conveyor, and a controller, arranged sequentially. According to the processing steps, the unwinding device is used to unwind the base strip and the connecting strip. After the base strip and the connecting strip are positioned by the positioning device, they are positioned and bonded by the first clamping conveyor. The first clamping conveyor clamps and conveys the continuous base strip and the connecting strip to the high-frequency welding device segment by segment. The high-frequency welding device welds the base strip and the connecting strip segment by segment to fix them. The second clamping conveyor conveys the welded segment of the base strip and the connecting strip from the high-frequency welding device. The unwinding device, the first clamping conveyor, the high-frequency welding device, and the second clamping conveyor are all electrically connected to the controller.

2. The high-frequency welding equipment for water slides according to claim 1, characterized in that: The unwinding device includes an unwinding frame. A swinging component is provided on the bottom side of the unwinding frame away from the positioning device. The swinging component is rotatably connected to a bottom unwinding roller. Two connecting unwinding rollers arranged vertically are detachably and rotatably provided on the top of the unwinding frame. A first gear is coaxially provided at one end of each of the two connecting unwinding rollers. A damping motor is provided on the unwinding frame at the position corresponding to the two connecting unwinding rollers. A second gear is coaxially provided on the drive shaft of the damping motor. In the corresponding damping motor and connecting unwinding roller, the first gear meshes with the second gear.

3. The high-frequency welding equipment for water slides according to claim 2, characterized in that: The swing assembly includes a rotating shaft rotatably mounted on the unwinding frame, swing arms respectively hinged to both ends of the rotating shaft, and swing cylinders for driving the swing arms to swing. One end of the bottom unwinding roller is detachably connected to the end of one swing arm away from the rotating shaft and rotates therefrom. The other end of the bottom unwinding roller is detachably connected to the end of another swing arm away from the rotating shaft and rotates therefrom. There are two swing cylinders. The bottom ends of both swing cylinders are hinged to the middle of the unwinding frame, and the two swing cylinders are aligned one-to-one with the two swing arms. The swing cylinders that are aligned with each other are hinged to the swing arms.

4. The high-frequency welding equipment for water slides according to claim 1, characterized in that: The positioning device includes a positioning frame. Two vertically arranged joint belt positioning shafts are rotatably mounted on the top of the positioning frame near the unwinding device. The two joint belt positioning shafts are parallel to each other. Multiple first positioning rings are movably fitted onto each joint belt positioning shaft. Each first positioning ring is fitted with a bolt, which is tightened against the joint belt positioning shaft to fix it in place. Three bottom belt positioning shafts are also rotatably mounted on the positioning frame. These three bottom belt positioning shafts are arranged in a triangular pattern, and are parallel to the joint belt positioning shaft. Two bottom belt positioning shafts are located at the bottom of the positioning frame, and the third bottom belt positioning shaft is located at the top of the positioning frame, between the two bottom bottom belt positioning shafts. Each bottom belt positioning shaft is fitted with two second positioning rings, and each second positioning ring is fitted with a bolt, which is tightened against the bottom belt positioning shaft to fix it in place.

5. The high-frequency welding equipment for water slides according to claim 4, characterized in that: The top of the positioning frame is also provided with a positioning plate whose length direction is parallel to the axis of the positioning shaft of the connecting belt. The positioning plate has two slots extending along its length direction. The two slots are arranged at intervals along the width direction of the positioning plate. Multiple limiting pieces are movably arranged on the top surface of the positioning plate. Each limiting piece has a circular sliding rod with a diameter matching the width of the slot at both ends. The two circular sliding rods are inserted into the two slots respectively to slide. Each circular sliding rod is threaded, and the part of it below the positioning plate is threaded to a clamping block. The clamping block and the limiting piece clamp the positioning plate to fix the limiting piece to the top surface of the positioning plate. The positioning frame is also provided with a pressure shaft on the side of the positioning plate away from the unwinding device. The pressure shaft is arranged parallel to the positioning shaft of the connecting belt.

6. The high-frequency welding equipment for water slides according to claim 4, characterized in that: The positioning frame is equipped with a gravity tensioning mechanism, which includes sliding components arranged along the axis of the bottom belt positioning shaft and gravity shafts connected at both ends to the two sliding components respectively. The gravity shafts are parallel to the bottom belt positioning shaft. Each sliding component includes two vertical shafts, and each vertical shaft has a sliding bushing. The two bushings are connected to a connecting block, and the gravity shaft is connected to the connecting block.

7. The high-frequency welding equipment for water slides according to claim 1, characterized in that: The first clamping and conveying device includes a first conveying frame and two first clamping assemblies. The first conveying frame has first conveying shafts rotatably mounted on both sides near the positioning device and the high-frequency welding device. A first support cylinder is rotatably mounted in the middle of each of the two first conveying shafts. A first conveyor belt for supporting the bottom belt is sleeved on the two first support cylinders, and a first transmission belt is sleeved on the ends of the two first conveying shafts. Two first slide rails are also provided on the first conveying frame between the two first conveying shafts. The two first slide rails correspond to the two ends of the first conveying shafts respectively and are perpendicular to the first conveying shafts on a horizontal plane. Each first slide rail slides... The device has two first sliders connected to each of the two first slide rails. One of the first sliders is connected to a first clamping assembly, and the other first slider is connected to another first clamping assembly. One first clamping assembly is located near the high-frequency welding device, and the first slider connected to the first clamping assembly is locked to the first slide rail by bolts. The other first clamping assembly is located near the positioning device and is connected to the first transmission belt. The first clamping assembly is used to clamp the first conveyor belt and the bottom belt and connecting belt laid on the first conveyor belt or to release the clamp.

8. A high-frequency welding device for a water slide according to claim 7, characterized in that: The second material conveying device includes a second conveying frame and two second clamping assemblies. The second conveying frame has second conveying shafts rotatably mounted on its sides near and away from the high-frequency welding device. Second support cylinders are rotatably mounted on each of the two second conveying shafts. A second conveyor belt for supporting the bottom belt is sleeved on each of the two second support cylinders, and a second transmission belt is sleeved on the ends of both second conveying shafts. Two second slide rails are also provided on the second conveying frame between the two second conveying shafts. The two second slide rails correspond to the two ends of the second conveying shafts respectively and are perpendicular to the second conveying shafts on a horizontal plane. Each second slide rail is slidably connected to two second sliders. One of the second sliders of each of the two second slide rails is connected to one of the second clamping assemblies. The other second slider of the second slide rail is connected to another second clamping assembly. One second clamping assembly is located on the side closer to the high-frequency welding device, and the second slider connected to the second clamping assembly is locked to the second slide rail by bolts. The other second clamping assembly is located on the side away from the high-frequency welding device, and the second clamping assembly is connected to the second transmission belt. The second clamping assembly is used to clamp the second conveyor belt and the bottom belt and connecting belt laid on the second conveyor belt or to release the clamping. The first conveyor shaft and the second conveyor shaft close to the high-frequency welding device are jointly fitted with a linkage belt. A servo motor is provided on the second conveyor frame. The servo motor is connected to one of the second conveyor shafts to drive the second conveyor shaft to reciprocate.

9. A high-frequency welding device for a water slide as described in claim 8, characterized in that: The first clamping device includes a first bottom clamping plate, a first gantry frame, a first top clamping plate, and a first lifting cylinder. The first bottom clamping plate is connected to the first slider and passes through the first conveyor belt from the inside. The first gantry frame is disposed on the first bottom clamping plate, and its crossbar is above the conveying surface of the first conveyor belt and spans the first conveyor belt. The first lifting cylinder is disposed on the crossbar of the first gantry frame, and its piston rod is downward. The first top clamping plate is connected to the piston rod of the first lifting cylinder. The first top clamping plate is driven to move closer to or away from the first bottom clamping plate by the first lifting cylinder. The second clamping device includes a second bottom clamping plate, a second gantry frame, a second top clamping plate, and a second lifting cylinder. The second bottom clamping plate is connected to the second slider and passes through the second conveyor belt from the inside. The second gantry frame is disposed on the second bottom clamping plate, and its crossbar is above the conveying surface of the second conveyor belt and spans the second conveyor belt. The second lifting cylinder is disposed on the crossbar of the second gantry frame, and its piston rod points downward. The second top clamping plate is connected to the piston rod of the second lifting cylinder. The second top clamping plate is driven to move closer to or away from the second bottom clamping plate by the second lifting cylinder.

10. A high-frequency welding device for a water slide according to claim 1, characterized in that: The high-frequency welding device includes a mounting frame, a third lifting cylinder disposed on the top of the mounting frame, a lifting platform connected to the third lifting cylinder, a positive guide plate disposed on the bottom surface of the lifting platform, a worktable disposed on the mounting frame and located below the lifting platform, a negative guide plate disposed on the top of the worktable, and a high-frequency source disposed on one side of the mounting frame. A positive guide strip is disposed on the positive guide plate, the positive electrode of the high-frequency source is connected to the positive guide plate, and the negative electrode of the high-frequency source is connected to the negative guide plate.

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