An inflating product processing heat sealer

Abstract

The application relates to the technical field of heat sealing equipment, and discloses an inflating product processing heat sealing machine, which comprises a supporting table and a sliding frame, the supporting table is provided with a lifting table, the bottom of the lifting table is provided with an upper die, the sliding frame is slidably connected with a moving table, the moving table is connected with a lower die through an adjusting table, the adjusting table can adjust the angle and position of the moving table, a camera is arranged above the lower die, and the camera is connected with a visual positioning system. The inflating product processing heat sealing machine can roll and press the cloth through the extruding piece before heat sealing, can flatten the cloth, can reduce the probability of wrinkles near the weld, can discharge the air between the cloth layers, can avoid air gaps, can improve the heat sealing quality, can make the produced inflating product have good air tightness, and can stop at a predetermined position when rolling and pressing the cloth, can verify the positioning accuracy through physics and vision multiple times, and can improve the positioning reliability.

Description

Technical Field

[0001] This application relates to the field of heat sealing equipment technology, and in particular to a heat sealing machine for processing inflatable products. Background Technology

[0002] High-frequency heat sealing welding machines are commonly used equipment in the production of inflatable products such as water slides, floating rafts, inflatable boats, and inflatable seats. An internal high-frequency generator produces a high-frequency current, which is input into the mold through a specific conduction system, forming a high-frequency electromagnetic field. Under the influence of the electromagnetic field, the plastic material being processed (such as sponge, PVC, etc.) generates frictional heat between molecules, rapidly heating to its melting point. At this point, the equipment applies appropriate pressure to the mold through a hydraulic or pneumatic system, causing the molten plastic material to adhere tightly within the mold, forming a strong weld layer. The entire process is fast and efficient, ensuring the sealing and durability of the inflatable products.

[0003] Before heat sealing, the fabric has already undergone multiple processes, including cutting. The fabric may have wrinkles and air gaps between the fabric layers. These factors can lead to obstructed heat conduction and insufficient material penetration, forming micron-level gaps that make it difficult for the finished product to pass the airtightness test.

[0004] Secondly, after the fabric is manually placed onto the slide, the placement position is not always consistent. A precise positioning system is needed for positioning and adjustment to ensure the mold is aligned with the weld seam. Visual positioning systems are commonly used, but the fabric is pressed tightly by the mold during welding, and the stretching and deformation of the fabric affects the positioning accuracy of the weld seam, thus affecting the heat sealing quality. Summary of the Invention

[0005] This application proposes a heat sealing machine for processing inflatable products. Before heat sealing, the machine uses an extruder to roll and flatten the fabric, reducing the probability of wrinkles near the weld and expelling air between the fabric layers. Furthermore, during the rolling of the fabric, the machine stops at a predetermined position, allowing for multiple physical and visual verifications of the positioning accuracy, thereby improving the reliability of the positioning.

[0006] To achieve the above objectives, this application adopts the following technical solution: a heat sealing machine for processing inflatable products, comprising a support platform and a sliding frame. The support platform is provided with a lifting platform, and the bottom of the lifting platform is provided with an upper mold. The sliding frame is slidably connected to a moving platform. The moving platform is connected to a lower mold through an adjustment platform. The adjustment platform can adjust the angle and position of the lower mold. A camera is provided above the lower mold, and the camera is connected to a visual positioning system. The adjustment platform adjusts the position and angle of the lower mold according to the position information, so that the position of the fabric is consistent with the moving platform each time. The adjustment platform is provided with two sets of extrusion parts. The two sets of extrusion parts can move independently on the moving platform. Both sets of extrusion parts move from the middle to both sides and stop at a distance of one from the weld after passing the weld.

[0007] After the extrusion is completed, the camera collects the fabric position information again to correct the position of the fabric and the weld. The adjustment table adjusts the moving table a second time according to the correction information and sends the fabric to the predetermined position for heat sealing.

[0008] Preferably, the adjustment table is provided with assembly boxes at both the front and rear ends, and the assembly boxes at both ends are slidably connected to a front slider and a rear slider, respectively. The front slider is hinged to a connecting shaft through a hinge joint, and the connecting shaft is movably connected to a pressure roller. The rear slider is provided with a locking slider and a connecting groove for the connecting shaft to be inserted. The locking slider can lock the connecting shaft after being pushed.

[0009] Preferably, in order to rotate the two sets of connecting shafts simultaneously, a linkage rod is connected to the two connecting shafts near the locking slider, and the linkage rod passes through the two connecting shafts and is movably connected to the two connecting shafts.

[0010] Preferably, the linkage rod is equipped with a paddle, and the locking slider is connected to a lever with a pre-drilled slot for the paddle to engage. When it is necessary to push the locking slider, the linkage rod is rotated to engage the paddle in the slot, thus pushing the locking slider to control its opening or closing. After the operation is completed, the linkage rod is rotated again to disengage the paddle from the slot.

[0011] Preferably, the adjusting table can move laterally relative to the moving table. The adjusting table is connected to the lower mold via a rotary motor. An adjusting block is movably connected to the adjusting table. When the front slider moves to the edge of the adjusting table, it can squeeze and push the moving adjusting block. A positioning spring is provided between the adjusting block and the adjusting table. The positioning spring keeps the adjusting block in a retracted state. Guide plates corresponding to the adjusting block are provided on both sides of the support platform. The guide plates have guide slopes in the direction close to the adjusting block. When the adjusting block and the guide plates interact, they will push the adjusting table to adjust laterally, so that the lateral position of the weld is consistent.

[0012] Preferably, the adjustment platform is provided with a positioning block on the side near the support platform. The positioning block can move longitudinally relative to the adjustment platform. After the adjustment platform is adjusted and moved a second time, the positioning block moves to a position at a distance of distance two from the nearest weld. The support platform is provided with a positioning baffle corresponding to the positioning block. When the positioning baffle contacts the positioning block, the weld is just aligned with the upper mold.

[0013] Preferably, the assembly box is provided with two sets of first lead screws, and the front slider and the rear slider are both threadedly connected to the first lead screws. When the first lead screws rotate, they drive the front slider and the rear slider to move. The first lead screws are fixedly connected to a driven wheel, and the driven wheel is connected to a worm gear through a gear or directly. The worm gear is connected to a transverse motor.

[0014] Preferably, the mobile platform is connected to a drive motor, which is connected to the mobile platform via a crank. The crank has a telescopic rod with a spring inside to keep it in the extended state.

[0015] The beneficial effects of this invention are as follows:

[0016] This application provides a heat sealing machine for processing inflatable products. Before heat sealing, the machine uses an extruder to roll and flatten the fabric, reducing the likelihood of wrinkles near the weld. At the same time, it removes air from between the fabric layers, preventing air gaps and improving the heat sealing quality, resulting in inflatable products with good airtightness.

[0017] When rolling the fabric, stopping at the predetermined position allows for multiple physical and visual verifications of positioning accuracy, improving positioning reliability. Simultaneously, the fabric is under the pressure of the extruded components and has already undergone tensile deformation. During heat sealing, the displacement of the weld seam due to deformation is reduced, further improving heat sealing quality and increasing the yield of inflatable products. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort:

[0019] Figure 1 This is a front view of the present invention;

[0020] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 3 This is a top view of the present invention;

[0022] Figure 4 This is a bottom view of the adjustment platform in this invention.

[0023] Figure 5 This is a schematic diagram of the crank structure connecting the drive motor in this invention.

[0024] In the diagram: 1. Support platform; 2. Sliding frame; 3. Lifting platform; 4. Camera; 5. Extrusion component; 51. Front slider; 52. Rear slider; 53. Connecting shaft; 54. Hinge joint; 55. Pressure roller; 56. Assembly box; 57. Actuating rod; 58. Snap-fit ​​slider; 59. Linkage rod; 510. Paddle; 511. Horizontal movement motor; 512. Worm gear; 513. Driven wheel; 514. First lead screw; 6. Moving platform; 7. Adjusting platform; 8. Lower die; 9. Positioning block; 91. Longitudinal movement motor; 92. Second lead screw; 93. Moving block; 10. Drive motor; 11. Rotary motor; 12. Adjusting block; 13. Guide plate; 14. Positioning baffle. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Example 1, as Figures 1-2 A heat-sealing machine for processing inflatable products includes a support platform 1 and a sliding frame 2. A lifting platform 3 is mounted on the support platform 1. The lifting platform 3 is driven by a hydraulic cylinder or a pneumatic cylinder and can control mold closing and adjust the pressure after mold closing. An upper mold is located at the bottom of the lifting platform 3. A movable platform 6 is slidably connected to the sliding frame 2, and a drive motor 10 is connected to the movable platform 6. (See also...) Figure 5 The drive motor 10 is connected to the moving platform 6 via a crank. When the drive motor 10 rotates, it drives the moving platform 6 to move longitudinally. The crank has a telescopic rod with a spring inside to keep it in the extended state. The moving platform 6 is connected to the lower mold 8 via an adjusting platform 7. The fabric to be heat-sealed is placed on the lower mold 8. The adjusting platform 7 can adjust the angle and position of the lower mold 8. A camera 4 is located above the lower mold 8 and is connected to a vision positioning system. The vision positioning system analyzes and obtains the position information of the fabric and the weld seam. The adjusting platform 7 adjusts the position and angle of the lower mold 8 according to the position information to ensure that the position of the fabric remains consistent each time. Vision positioning is a commonly used positioning method in this field. The visual positioning system is not described in detail in this embodiment. The adjustment table 7 is equipped with two sets of extrusion members 5. The two sets of extrusion members 5 can move independently on the moving table 6. The two sets of extrusion members 5 move from the middle to both sides and stop at the edge of the fabric after passing the weld seam, flattening the fabric on the moving table 6 and squeezing out the interlayer air to avoid air gaps near the weld seam. After the extrusion members 5 have finished extruding, the camera 4 collects the fabric position information again and corrects the position of the stretched and deformed fabric and the weld seam. The adjustment table 7 adjusts the position of the moving table 6 a second time according to the information. Then, the drive motor 10 drives the moving table 6 to move and send the fabric to the predetermined position for heat sealing.

[0027] Please see Figure 3 The extrusion component 5 includes a front slider 51 and a rear slider 52, which are respectively located at the front and rear ends of the adjustment platform 7. Front and rear refer to the sliding direction of the moving platform 6. Both the front and rear ends of the adjustment platform 7 are provided with assembly boxes 56. The front slider 51 and the rear slider 52 slide laterally in the assembly boxes 56. The front slider 51 is hinged to a connecting shaft 53 through a hinge joint 54. The connecting shaft 53 is movably connected to a pressure roller 55. The movement of the front slider 51 and the rear slider 52 drives the connecting shaft 53 to move. The connecting shaft 53 drives the pressure roller 55 to roll laterally and extrude the fabric. The rear slider 52 is provided with a locking slider 58 and a connecting groove for the connecting shaft 53 to be inserted. After the connecting shaft 53 is inserted, the locking slider 58 is pushed to lock the connecting shaft 53, which facilitates the extrusion of the fabric. After the heat sealing is completed, the locking slider 58 is moved, and the connecting shaft 53 rotates more than 90 degrees, which facilitates the removal or re-laying of the fabric.

[0028] In order to rotate the two sets of connecting shafts 53 at the same time, the two connecting shafts 53 are connected to the linkage rods 59 near the locking sliders 58. The linkage rods 59 pass through the two connecting shafts 53 and are movably connected to the two connecting shafts 53 without interfering with the lateral movement of the two connecting shafts 53. Both ends of the linkage rods 59 are provided with protrusions to prevent them from coming off the connecting shafts 53.

[0029] Since the two locking sliders 58 are not on one side, and the operator may be on one side, the locking slider 58 on the other side is inconvenient to operate. The linkage rod 59 is equipped with a paddle 510. The locking slider 58 is connected to a toggle rod 57. The toggle rod 57 has a slot for the paddle 510 to be inserted. When it is necessary to push the locking slider 58, the linkage rod 59 is rotated to make the paddle 510 insert into the slot, push the locking slider 58, and control the locking slider 58 to close or open. After the operation is completed, the linkage rod 59 is rotated to make the paddle 510 disengage from the slot.

[0030] Please see Figure 2 and Figure 4The adjusting table 7 can move laterally relative to the moving table 6. The moving table 6 has a mounting block that inserts into and slides through the adjusting table 7. Return springs are located on both sides of the mounting block, keeping the adjusting table 7 in a centered position. The adjusting table 7 is connected to the lower mold 8 via a rotary motor 11, which drives the lower mold 8 to rotate. The rotating shaft of the rotary motor 11 passes through the adjusting table 7 and connects to the lower mold 8. The housing of the rotary motor 11 is fixedly connected to the bottom of the adjusting table 7. The moving table 6 has a pre-drilled mounting hole for the rotary motor 11, large enough to not interfere with the movement of the rotary motor 11 along with the adjusting table 7. Ball bearings are provided between the lower mold 8 and the adjusting table 7 to ensure sufficient support for the lower mold 8 and prevent it from moving. The material is deformed by the lifting platform 3. The adjusting platform 7 is movably connected to the adjusting block 12. When the front slider 51 moves to the edge of the adjusting platform 7, it can squeeze and push the adjusting block 12. A positioning spring is provided between the adjusting block 12 and the adjusting platform 7. The positioning spring keeps the adjusting block 12 in a retracted state. The two sides of the support platform 1 are provided with guide plates 13 corresponding to the adjusting block 12. The guide plates 13 are provided with guide slopes in the direction close to the adjusting block 12. The front slider 51 moves to the edge of the fabric. Each time, the distance from the weld is consistent. The position of the adjusting block 12 is adjusted with the front slider 51. When the adjusting block 12 and the guide plate 13 interact, they will push the adjusting platform 7 to adjust laterally, automatically adjusting the lateral position of the weld to keep the weld consistent.

[0031] A positioning block 9 is provided on the side of the adjustment platform 7 near the support platform 1. The positioning block 9 can move longitudinally relative to the adjustment platform 7. The positioning block 9 is fixedly connected to a moving block 93. The adjustment platform 7 is provided with a second lead screw 92 corresponding to the position of the moving block 93. The second lead screw 92 is connected to a longitudinal movement motor 91. The longitudinal movement motor 91 rotates to drive the moving block 93 to move, and then drives the positioning block 9 to move. The position of the positioning block 9 is adjusted according to the longitudinal weld of the fabric. Each time, the distance from the weld near the support platform 1 is consistent. The support platform 1 is provided with a positioning baffle 14 corresponding to the positioning block 9. When the positioning baffle 14 contacts the positioning block 9, the weld is exactly aligned with the upper mold.

[0032] The assembly box 56 is equipped with two sets of first lead screws 514. The front slider 51 and the rear slider 52 are both threadedly connected to the first lead screws 514. When the first lead screws 514 rotate, they drive the front slider 51 and the rear slider 52 to move. The first lead screws 514 are fixedly connected to a driven wheel 513. The driven wheel 513 is connected to a worm gear 512 through a gear or directly. The worm gear 512 is driven by a transverse motor 511. The transverse motor 511 drives the worm gear 512 to rotate, which in turn drives the driven wheel 513 and the first lead screws 514 to rotate. The transverse motor 511 and the worm gear 512 are embedded in the adjustment table 7. The moving table 6 has a reserved installation port.

[0033] During heat sealing, the cut fabric is laid on the lower mold 8, and the extrusion piece 5 is closed, locking the slider 58. Then, the camera 4 captures image information of the fabric. The visual positioning system obtains the fabric's position based on the image information and generates the weld seam position. The rotary motor 11 drives the lower mold 8 to rotate, adjusting its angle so that the longitudinal weld seam is parallel to the forward direction. Subsequently, two transverse motors 511 rotate, driving two connecting shafts 53 and pressure rollers 55 to move. The pressure rollers 55 roll on the fabric, flattening it and simultaneously squeezing out air. The movement of the pressure rollers 55 just passes the weld seam and stops at the edge of the fabric. At this point, the distance between the two sets of pressure rollers 55 and the nearest weld seam is one. The camera 4 then captures image information again. The fabric image is collected to verify the position of the pressure roller 55 and the weld position, and to determine whether the pressure roller 55 has moved into place. At the same time, it is verified whether the distance between the weld position and the pressure roller 55 meets the requirements. If it does not meet the requirements, the movement of the pressure roller 55 is repeated. If it does meet the requirements, the position of the positioning block 9 is adjusted so that it is consistent with the horizontal weld spacing. At this time, the distance between the positioning block 9 and the nearest weld is distance two. Then the drive motor 10 moves, driving the moving table 6 to move as a whole. When the adjusting block 12 contacts the guide plate 13, the horizontal position of the weld is automatically adjusted. When the positioning block 9 contacts the positioning baffle 14, the weld is exactly aligned with the upper mold. The lifting table 3 moves down to close the mold. After the heat sealing is completed, the moving table 6 is reset and the material is replaced.

Claims

1. A heat-sealing machine for processing inflatable products, comprising a support platform (1) and a sliding frame (2), wherein a lifting platform (3) is provided on the support platform (1), an upper mold is provided at the bottom of the lifting platform (3), and a movable platform (6) is slidably connected to the sliding frame (2), characterized in that: The moving platform (6) is connected to the lower mold (8) via the adjusting platform (7). The adjusting platform (7) can adjust the angle and position of the lower mold (8). A camera (4) is provided above the lower mold (8). The camera (4) is connected to a visual positioning system. The adjusting platform (7) adjusts the position and angle of the lower mold (8) according to the position information so that the position of the fabric is consistent with the moving platform (6) each time. The adjustment table (7) is provided with two sets of extrusion parts (5). The two sets of extrusion parts (5) can move independently on the moving table (6). Both sets of extrusion parts (5) move from the middle to both sides and stop at a distance of one from the nearest weld after passing the weld. After the extrusion part (5) is extruded, the camera (4) collects the fabric position information again and corrects the fabric and weld position. The adjustment table (7) adjusts the moving table (6) a second time according to the correction information and sends the fabric to the predetermined position for heat sealing. The adjustment table (7) is equipped with assembly boxes (56) at both ends. The assembly boxes (56) at both ends are slidably connected to the front slider (51) and the rear slider (52). The front slider (51) is hinged to the connecting shaft (53) through the hinge joint (54). The connecting shaft (53) is movably connected to the pressure roller (55). The rear slider (52) is equipped with a snap-fit ​​slider (58). The rear slider (52) is equipped with a connecting groove for the connecting shaft (53) to be inserted. The snap-fit ​​slider (58) can lock the connecting shaft (53) after being pushed. The adjustment platform (7) can move laterally relative to the moving platform (6). The adjustment platform (7) is connected to the lower mold (8) via a rotary motor (11). The adjustment platform (7) is movably connected to an adjustment block (12). When the front slider (51) moves to the edge of the adjustment platform (7), it can squeeze and push the moving adjustment block (12). A positioning spring is provided between the adjustment block (12) and the adjustment platform (7). The positioning spring keeps the adjustment block (12) in a retracted state. The support platform (1) has guide plates (13) on both sides corresponding to the adjustment block (12). The guide plates (13) have guide slopes in the direction close to the adjustment block (12). When the adjustment block (12) and the guide plates (13) interact, they will push the adjustment platform (7) to adjust laterally, so that the lateral position of the weld is consistent. The adjustment platform (7) is provided with a positioning block (9) on the side near the support platform (1). The positioning block (9) can move longitudinally relative to the adjustment platform (7). After the adjustment platform (7) adjusts the moving platform (6) for the second time, the positioning block (9) moves to a position at a distance of distance two from the nearest weld. The support platform (1) is provided with a positioning baffle (14) corresponding to the positioning block (9). When the positioning baffle (14) contacts the positioning block (9), the weld is just aligned with the upper mold.

2. The heat sealing machine for processing inflatable products according to claim 1, characterized in that, Two connecting shafts (53) are connected to a linkage rod (59) near the snap-fit ​​slider (58). The linkage rod (59) passes through the two connecting shafts (53) and is movably connected to the two connecting shafts (53).

3. The heat sealing machine for processing inflatable products according to claim 2, characterized in that, The linkage rod (59) is provided with a paddle (510), and the locking slider (58) is connected to a lever (57). The lever (57) has a slot reserved for the paddle (510) to be inserted.

4. The heat sealing machine for processing inflatable products according to claim 1, characterized in that, The assembly box (56) is provided with two sets of first lead screws (514). The front slider (51) and the rear slider (52) are both threadedly connected to the first lead screws (514). When the first lead screws (514) rotate, they drive the front slider (51) and the rear slider (52) to move. The first lead screws (514) are fixedly connected to driven wheels (513). The driven wheels (513) are connected to worm gears (512) through gears or directly. The worm gears (512) are connected to transverse motors (511).

5. A heat-sealing machine for processing inflatable products according to claim 4, characterized in that, The mobile platform (6) is connected to a drive motor (10). The drive motor (10) is connected to the mobile platform (6) via a crank. The crank is provided with a telescopic rod, and a spring is provided inside the telescopic rod to keep it in an extended state.

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