Heat sealing device for inflatable paddle board production

Abstract

The utility model discloses a heat sealing device for inflatable paddle board production, and belongs to the technical field of heat sealing of inflatable paddle boards. A heat sealing device for inflatable paddle board production comprises a rack, a controller is connected to the outer wall of the rack, a fixing frame is arranged at the top of the rack, a plurality of positioning assemblies are connected to the circumferential outer wall of a lead screw in a sleeving mode, the multiple positioning assemblies comprise movable bases, placing molds are clamped to the tops of the movable bases, and heat sealing assemblies are connected to the circumferential outer walls of multiple guide rods in a sleeving mode. According to the device, the placement mold and the hot pressing plate used for hot pressing adopt an integrated design, so that the hot pressing plate can be integrally replaced during disassembly and replacement, the disassembly complexity is reduced, the downtime can be shortened by adopting a multi-station replacement mode, and the production efficiency is improved. Compressed air generated by an external air compressor can be injected into the specified cooling vortex tubes through the electromagnetic valves, so that the top of the inflatable paddle board is cooled through cold air generated by the multiple cooling vortex tubes, and the production efficiency of the inflatable paddle board is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of heat sealing technology for inflatable paddleboards, and more specifically, to a heat sealing device for the production of inflatable paddleboards. Background Technology

[0002] An inflatable paddleboard is a type of water sports equipment, typically made of high-strength PVC or other wear-resistant and water-resistant materials. It has an inflatable structure, allowing it to be deflated and folded when not in use for easy carrying and storage. When in use, it is inflated with air using an air pump, forming a board with buoyancy and rigidity. Inflatable paddleboards are generally equipped with paddles, allowing users to stand on the board and move across the water using the paddles for activities such as surfing, cruising, and yoga.

[0003] The inflatable paddleboard production heat-sealing device is used to join the different components that make up an inflatable paddleboard together through a heat-sealing process. This device mainly consists of a heating system, a pressure system, a control system, and a mold. The heating system provides heat to bring the paddleboard material to the heat-sealing temperature. The pressure system applies appropriate pressure during the heat-sealing process to ensure a tight fit between the materials. The control system precisely controls parameters such as heating temperature, pressure, and heat-sealing time. The mold is designed according to the shape and size of the inflatable paddleboard to ensure the accuracy and quality of the heat-sealing. Through the coordinated action of these components, the inflatable paddleboard production heat-sealing device can accurately and firmly heat-seal the upper and lower surfaces, edges, and various accessories of the paddleboard together to form a complete inflatable paddleboard product.

[0004] Existing heat-sealing devices for producing inflatable paddleboards typically employ heat sealing to attach a decorative layer to the top of the paddleboard for a more aesthetically pleasing finish. However, these devices suffer from several drawbacks. Current heat-sealing equipment generally uses an upper and lower mold. During heat sealing, the upper mold is heated and pressed down, working in conjunction with the lower mold to seal the inflatable paddleboard. This design makes changing molds of different sizes extremely inconvenient, requiring separate disassembly of both the upper and lower molds. The disassembly process relies heavily on numerous bolts for tightening, which is not only time-consuming and labor-intensive but also prone to bolt loss and thread damage. This significantly impacts mold replacement efficiency, increases equipment maintenance costs and downtime, and fails to meet diverse production needs.

[0005] In addition, existing inflatable paddleboards mostly rely on natural cooling after heat sealing. This traditional cooling method has obvious drawbacks. The natural cooling process is slow and cannot dissipate the heat of the heat-sealed parts in time, causing the inflatable paddleboard to be in a high-temperature state for a long time. This can easily lead to quality problems such as thermal deformation and surface wrinkles. At the same time, the low cooling efficiency greatly prolongs the production cycle and reduces the overall production efficiency, causing great trouble for actual use.

[0006] In view of this, we propose a heat-sealing device for producing air-filled paddles. Utility Model Content

[0007] 1. Technical problems to be solved

[0008] The purpose of this invention is to provide a heat-sealing device for producing inflatable paddleboards, so as to solve the problems mentioned in the background art.

[0009] 2. Technical Solution

[0010] A heat-sealing device for producing inflatable paddles includes a frame, a controller connected to the outer wall of the frame, a fixed frame at the top of the frame, a hydraulic cylinder connected to the top of the fixed frame, a pressing plate connected to the output end of the hydraulic cylinder, a lead screw motor fixedly connected to the rear outer wall of the frame, the output end of the lead screw motor extending into the frame and connected to a lead screw, a plurality of positioning components sleeved on the outer circumference of the lead screw, the plurality of positioning components including movable seats, the plurality of movable seats being threadedly sleeved on the outer circumference of the lead screw, a placement mold clamped at the top of the movable seats, a guide rod and a spring fixedly provided at the top of the placement mold, a heat-sealing component sleeved on the outer circumference of the plurality of guide rods, the heat-sealing component including a sleeve plate, the sleeve plate being sleeved on the outer circumference of the plurality of guide rods and fixedly connected to the ends of the plurality of springs.

[0011] Preferably, a rotating handle is rotatably connected to the outer wall of the movable seat, and a bidirectional threaded rod is connected to the end of the rotating handle. The bidirectional threaded rod is rotatably connected to the inner wall of the movable seat, and a clamping seat is threaded onto the outer circumference of the bidirectional threaded rod.

[0012] Preferably, the outer walls of the mold are provided with limiting slots, and the multiple limiting slots are respectively matched with the multiple clamping seats.

[0013] Preferably, a cooling cavity is provided at the bottom of the placement mold, and a cooling vortex tube is fixedly connected to the outer wall of the placement mold, with the cooling ends of the plurality of cooling vortex tubes extending into the interior of the cooling cavity.

[0014] Preferably, the plurality of guide rods extend to the bottom of the placement mold and pass through the cooling cavity, and the top of the movable seat is provided with a plurality of positioning grooves corresponding to and matching the guide rods, and the tops of the plurality of guide rods are respectively threadedly fixed to a limiting seat.

[0015] Preferably, the top of the placement mold has a placement groove, and the inner wall of the placement groove has a cold air outlet, and the plurality of cold air outlets are connected to the interior of the cooling chamber.

[0016] Preferably, a hot press plate is fixedly connected to the bottom of the socket plate, and an electric heating wire is provided inside the hot press plate.

[0017] 3. Beneficial effects

[0018] Compared to existing technologies, the advantages of this invention are as follows: When heat-sealing inflatable paddles, the inflatable paddle to be heat-sealed is first placed inside the placement slot of the designated placement mold, with the height not exceeding multiple cold air outlets. Then, a lead screw motor drives one side of the moving seat to move to the bottom of the pressing plate. A hydraulic cylinder then drives the pressing plate to descend and press against the top of the sleeve plate, causing the bottom hot pressing plate to descend, thus heat-sealing the inflatable paddle inside the placement slot. After heat-sealing, the hydraulic cylinder drives the pressing plate to reset, and the sleeve plate carrying the hot pressing plate can spring back to its original position under the action of multiple springs. When heat-sealing inflatable paddles of various sizes is required, the other side of the moving seat can be pre-positioned outside... The rotating wall rotates, thereby driving the clamping seats to move away from each other through the bidirectional threaded rod, thus releasing the limit on the placement mold. At this time, the personnel can disassemble the placement mold. The placement mold and the hot pressing plate used for hot pressing are designed as a whole, which can be replaced as a whole during disassembly and replacement, reducing the complexity of disassembly. The multi-station replacement method can reduce downtime. Similarly, during installation, simply insert the placement mold into the positioning groove through the guide rod extending from the bottom, and then reverse the bidirectional threaded rod to drive the clamping seat to engage with the limiting groove on the outer wall of the placement mold, thereby positioning the placement mold. The overall use is simpler and more convenient.

[0019] Furthermore, after the inflatable paddleboard is heat-sealed, compressed air generated by an external air compressor can be injected into the designated cooling vortex tubes through a solenoid valve. This allows the cold air generated by multiple cooling vortex tubes to be conducted into the cooling chamber, and then blown out through multiple cold air outlets to cool the top of the hot-pressed inflatable paddleboard. The cooling speed is faster, effectively improving its production efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the heat-sealing component structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the bottom structure of the placement mold of this utility model;

[0023] The following are the labels in the diagram: 100, frame; 110, controller; 120, fixed frame; 130, hydraulic cylinder; 131, pressing plate; 140, lead screw motor; 200, moving seat; 201, positioning groove; 210, rotating handle; 211, double-threaded rod; 220, clamping seat; 230, mold placement; 231, cooling vortex tube; 232, limit slot; 233, guide rod; 234, spring; 235, cooling chamber; 236, placement groove; 237, cold air outlet; 238, limit seat; 300, socket plate; 310, hot press plate; 320, heating wire. Detailed Implementation

[0024] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Please see Figure 1-3 This utility model provides a technical solution:

[0028] A heat-sealing device for producing inflatable paddleboards includes a frame 100, a controller 110 connected to the outer wall of the frame 100, a fixed frame 120 provided on the top of the frame 100, a hydraulic cylinder 130 connected to the top of the fixed frame 120, a pressing plate 131 connected to the output end of the hydraulic cylinder 130, and a lead screw motor 140 fixedly connected to the rear outer wall of the frame 100. The output end of the lead screw motor 140 extends into the interior of the frame 100 and is connected to a lead screw.

[0029] In some embodiments: both the lead screw motor 140 and the hydraulic cylinder 130 are prior art. The lead screw motor 140 can be a servo motor, and the hydraulic cylinder 130 is a key actuator for the heat-sealing pressing action of the pneumatic paddle heat-sealing device. Based on Pascal's principle, it achieves linear reciprocating motion through the pressure transmission of hydraulic oil. The hydraulic cylinder mainly consists of a cylinder barrel, piston, piston rod, end cap, and seals. When an external hydraulic pump delivers high-pressure hydraulic oil to the rodless chamber of the hydraulic cylinder through pipelines, the pressure generated by the hydraulic oil pushes the piston, causing the piston rod to extend and drive the pressing plate to descend, applying pressure to the pneumatic paddle to complete the heat sealing. After the heat sealing is completed, the reversing valve switches the oil circuit, and high-pressure oil enters the rod chamber, pushing the piston to move in the opposite direction. The piston rod retracts, driving the pressing plate to rise and reset. The seals ensure the sealing of the hydraulic cylinder, preventing hydraulic oil leakage and ensuring stable and efficient operation of the hydraulic cylinder, providing a stable and adjustable pressure output for the heat sealing process. All of the above are prior art.

[0030] Multiple positioning components are sleeved on the outer circumference of the lead screw. The multiple positioning components include movable seats 200, which are threaded onto the outer circumference of the lead screw. The top of the movable seat 200 holds a placement mold 230. The top of the placement mold 230 is fixedly provided with guide rods 233 and springs 234. The outer circumference of the multiple guide rods 233 is sleeved with heat sealing components. The heat sealing components include sleeve plates 300, which are sleeved on the outer circumference of the multiple guide rods 233 and fixedly connected to the ends of the multiple springs 234. The multiple springs 234 are respectively disposed outside the multiple guide rods 233.

[0031] Specifically, a rotating handle 210 is rotatably connected to the outer wall of the movable seat 200, and a bidirectional threaded rod 211 is connected to the end of the rotating handle 210. The bidirectional threaded rod 211 is rotatably connected to the inner wall of the movable seat 200, and a clamping seat 220 is threadedly sleeved on the outer circumference of the bidirectional threaded rod 211 to facilitate the fixing of the mold 230.

[0032] Furthermore, limiting slots 232 are provided on the front and rear outer walls of the mold 230, and multiple limiting slots 232 are respectively matched with multiple clamping seats 220.

[0033] Furthermore, a cooling cavity 235 is provided at the bottom of the placement mold 230, and a cooling vortex tube 231 is fixedly connected to the outer wall of the placement mold 230, with the cooling ends of multiple cooling vortex tubes 231 extending into the interior of the cooling cavity 235.

[0034] In some embodiments, the cooling vortex tube 231 is a device that utilizes the vortex effect to achieve cooling, mainly composed of a nozzle, a vortex chamber, a separation orifice plate, and hot and cold end tubes. After compressed air enters the vortex tube through the pipe, it enters the vortex chamber at high speed tangentially under the acceleration of the nozzle, forming a high-speed rotating vortex. Due to the difference in angular velocity between the center and the edge of the vortex, an energy separation phenomenon occurs. The kinetic energy of the gas in the central part decreases and the temperature drops, forming a cold airflow that is discharged from the cold end tube to cool the hot-pressed paddle plate; while the kinetic energy of the gas in the edge part increases and the temperature rises, forming a hot airflow that is discharged from the hot end tube. This structure does not require complex mechanical refrigeration components, and can generate hot and cold flow by relying solely on compressed air, providing an efficient and reliable cold source for the rapid cooling of the hot-pressed paddle plate. The compressed air can be supplied by an external air compressor and delivered to the designated air inlet of the cooling vortex tube 231 through a solenoid valve, which is prior art and does not need to be described in detail.

[0035] Furthermore, multiple guide rods 233 extend to the bottom of the mold 230 and pass through the cooling cavity 235. The top of the movable seat 200 is provided with multiple positioning grooves 201 that correspond to and match the guide rods 233. The tops of the multiple guide rods 233 are also threadedly fixed to limit seats 238, which facilitates positioning during installation.

[0036] It is worth noting that the top of the placement mold 230 is provided with a placement groove 236, and the inner wall of the placement groove 236 is provided with a cold air outlet 237. Multiple cold air outlets 237 are connected to the interior of the cooling chamber 235.

[0037] In some embodiments, the thickness of the inflatable paddle plate is less than that of the plurality of cold air outlets 237, so that the cold air discharged from the plurality of cold air outlets 237 can act on the top of the inflatable paddle plate.

[0038] It is worth noting that a hot press plate 310 is fixedly connected to the bottom of the socket plate 300. The hot press plate 310 is equipped with an electric heating wire 320 to facilitate the heat sealing of the top of the inflatable paddle plate. The electric heating wire 320 is existing technology and its temperature can be controlled by the controller 110.

[0039] In some embodiments: the device can be powered by an external power source. The controller 110 is equipped with a visual display screen and function buttons. Operators can intuitively set working parameters such as heat sealing temperature, pressure parameters, and cooling time. It can also monitor the equipment's operating status in real time. Furthermore, it can be remotely controlled by a remote control. The remote control uses wireless communication technology (such as Bluetooth or the 2.4GHz wireless band) to establish a connection with the device. Operators can freely control the device to start and stop, switch modes, and intervene in the heat sealing process within a certain range. All of the above are existing technologies and need not be elaborated further.

[0040] In addition, the circuits, electronic components and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the internal structure and method.

[0041] Working principle: When heat-sealing the inflatable paddleboard, the inflatable paddleboard to be heat-sealed is first placed inside the placement groove 236 of the designated placement mold, with the height not exceeding the height of multiple cold air outlets 237. Then, the movable seat 200 on one side is moved to the bottom of the pressing plate 131 by the lead screw motor 140. After that, the pressing plate 131 is lowered by the hydraulic cylinder 130 and pressed against the top of the sleeve plate 300, which drives the bottom hot pressing plate 310 to descend, thereby heat-sealing the inflatable paddleboard inside the placement groove 236. After the heat sealing is completed, the hydraulic cylinder 130 drives the pressing plate 131 to reset. The sleeve plate 300 carrying the hot pressing plate 310 can spring back to reset under the action of multiple springs 234. When heat sealing is required for inflatable paddles of various sizes, the rotating handle 210 on the outer wall of the other side of the moving seat 200 can be rotated in advance, thereby driving the respective clamping seats 220 to move away from each other through the bidirectional threaded rod 211, thereby releasing the limit on the placement mold 230. At this time, the personnel can disassemble the placement mold 230. The placement mold 230 and the hot pressing plate 310 used for hot pressing are designed as a single unit, allowing for complete replacement during disassembly and reducing the complexity of disassembly. The multi-station replacement method also reduces downtime. Similarly, during installation, the placement mold 230 is simply inserted into the positioning groove 201 through the guide rod 233 extending from the bottom. Then, the bidirectional threaded rod 211 is reversed to drive the clamping seat 220 to engage with the limiting groove on the outer wall of the placement mold 230, thereby positioning the placement mold 230. The overall use is simpler and more convenient. After the inflatable paddle plate is heat-sealed, compressed air generated by an external air compressor can be injected into the designated cooling vortex tubes 231 through a solenoid valve. The cold air generated by multiple cooling vortex tubes 231 can be conducted into the cooling chamber 235, and then blown out through multiple cold air outlets 237 to cool the top of the hot-pressed inflatable paddle plate. The cooling speed is faster, effectively improving the production efficiency.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A heat-sealing device for producing inflatable paddleboards, comprising a frame (100), characterized in that: A controller (110) is connected to the outer wall of the frame (100). A fixing frame (120) is provided on the top of the frame (100). A hydraulic cylinder (130) is connected to the top of the fixing frame (120). A pressing plate (131) is connected to the output end of the hydraulic cylinder (130). A lead screw motor (140) is fixedly connected to the rear outer wall of the frame (100). The output end of the lead screw motor (140) extends into the frame (100) and is connected to a lead screw. Multiple positioning components are sleeved on the outer circumference of the lead screw. The multiple positioning components include... A movable seat (200) is provided, and multiple movable seats (200) are respectively threaded onto the outer wall of the lead screw. The top of the movable seat (200) holds a placement mold (230). The top of the placement mold (230) is fixedly provided with a guide rod (233) and a spring (234). A heat sealing assembly is sleeved on the outer wall of the circumference of multiple guide rods (233). The heat sealing assembly includes a sleeve plate (300). The sleeve plate (300) is sleeved on the outer wall of the circumference of multiple guide rods (233) and fixedly connected to the end of multiple springs (234).

2. The heat-sealing device for producing inflatable paddleboards according to claim 1, characterized in that: The outer wall of the movable seat (200) is rotatably connected to a rotating handle (210), and the end of the rotating handle (210) is connected to a bidirectional threaded rod (211). The bidirectional threaded rod (211) is rotatably connected to the inner wall of the movable seat (200), and a clamping seat (220) is threaded onto the outer circumference of the bidirectional threaded rod (211).

3. The heat-sealing device for producing inflatable paddleboards according to claim 2, characterized in that: The placement mold (230) has limit slots (232) on its front and rear outer walls, and the multiple limit slots (232) are respectively matched with the multiple clamping seats (220).

4. The heat-sealing device for producing inflatable paddleboards according to claim 3, characterized in that: The placement mold (230) has a cooling cavity (235) at the bottom, and a cooling vortex tube (231) is fixedly connected to the outer wall of the placement mold (230). The cooling ends of the multiple cooling vortex tubes (231) extend into the interior of the cooling cavity (235).

5. The heat-sealing device for producing inflatable paddleboards according to claim 4, characterized in that: Multiple guide rods (233) extend to the bottom of the placement mold (230) and pass through the cooling cavity (235). The top of the movable seat (200) is provided with multiple positioning grooves (201) that correspond to and match the guide rods (233). The tops of the multiple guide rods (233) are also threadedly fixed to limit seats (238).

6. The heat-sealing device for producing inflatable paddleboards according to claim 5, characterized in that: The placement mold (230) has a placement groove (236) on its top, and a cold air outlet (237) is provided on the inner wall of the placement groove (236). The multiple cold air outlets (237) are connected to the interior of the cooling chamber (235).

7. The heat-sealing device for producing inflatable paddleboards according to claim 6, characterized in that: The bottom of the socket plate (300) is fixedly connected to a hot press plate (310), and an electric heating wire (320) is provided inside the hot press plate (310).

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