Air tightness detection device for environment-friendly PVC (polyvinyl chloride) composite film

Abstract

The invention discloses an environment-friendly PVC composite film air tightness detection device, and relates to the technical field of air tightness detection, the environment-friendly PVC composite film air tightness detection device comprises a main body mechanism, an adjusting mechanism is fixedly installed in the main body mechanism, and a detection mechanism is placed on the inner surface wall of the adjusting mechanism. According to the device, when the device is used, an electromagnet at the bottom of an upper mold is matched with a magnetic attraction part in the detection mechanism, four corners of an environment-friendly PVC composite film needing to be detected are clamped and fixed, the four corners of the composite film are pulled to move, and the flatness of the composite film in the detection process is effectively guaranteed in combination with width adjustment of the early-stage detection mechanism; the condition that the edge of the composite film is not fully attached to a sealing part of detection equipment due to soft texture and uneven surface is reduced, external air permeation and internal detection gas leakage are avoided, a detection device can more accurately capture changes caused by tiny gas leakage points, misjudgment and missed judgment are reduced, and the reliability and accuracy of a detection result are improved.

Description

Technical Field

[0001] The invention relates to the technical field of air tightness detection, in particular to an environmentally friendly PVC composite film air tightness detection device. Background Art

[0002] Environmentally friendly PVC composite film is widely used in packaging, construction, automotive interior and other fields. Since it needs to have good airtightness during use to ensure the quality and performance of the product, airtightness testing of environmentally friendly PVC composite film is an essential link.

[0003] At present, when testing PVC composite films, the detection devices on the market are extremely difficult to achieve complete fit with the sealing components of the detection equipment due to the soft texture of the PVC composite film itself or the poor surface flatness. The insufficient fit directly leads to tiny gaps at the edges of the composite film, which become channels for gas to enter and exit. External air will penetrate through them, and the internal detection gas will also leak. This abnormal flow of gas will undoubtedly cause serious interference to the accuracy of the test results. When the overall sealing effect is poor and there is interference from other gases, it is difficult for the detection device to accurately capture the changes brought about by these tiny leakage points, which makes it easy to misjudge or miss the judgment, ultimately affecting the reliability and accuracy of the air tightness test results of the PVC composite film. Summary of the invention

[0004] The purpose of the present invention is to provide an environmentally friendly PVC composite film air tightness detection device to solve the problems raised by the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: an environmentally friendly PVC composite film air tightness detection device, comprising: a main body mechanism, an adjustment mechanism is fixedly installed inside the main body mechanism, and a detection mechanism is placed on the inner surface wall of the adjustment mechanism;

[0006] The detection mechanism includes an injection molding seat; one side of the inner wall of the injection molding seat is fixedly connected with an injection molding valve, an inner circulation groove is opened inside the injection molding seat, two cross beam plates are slidably embedded in the interior of the injection molding seat, a group of embedding grooves are preset inside the two cross beam plates, air grooves are opened inside the two cross beam plates, installation grooves are opened inside the two cross beam plates, embedding plates are slidably embedded in the inner surface walls of the two groups of embedding grooves, magnetic suction components are fixedly connected to the tops of the two embedding plates, built-in motors are fixedly inserted in the inner surface walls of the two installation grooves, the rotating ends of the two built-in motors are fixedly connected to inner rods, the bottoms of the two inner rods are fixedly connected to transmission gears, the outer walls of the two transmission gears are meshed with a group of tooth plates, and the tops of the two groups of tooth plates are respectively fixedly connected to the bottoms of the embedding plates.

[0007] Preferably, one side of the outer wall of one of the two cross beam plates is fixedly connected with two groups of extension frames A, the interior of the two groups of extension frames A is preset with extension grooves, the inner surface walls of the two groups of extension grooves are slidably embedded with extension blocks, the outer walls of the two groups of extension blocks are fixedly connected with extension frames B, and the interiors of the two groups of extension frames A and the two groups of extension frames B are respectively connected to the interior of the air groove, the tops of the two cross beam plates are fixedly connected with a group of negative pressure plates, one side of the outer wall of the two extension frames A is fixedly connected with micro cylinders, the telescopic ends of the two micro cylinders are fixedly connected with linkage plates, and one side of the outer wall of the two linkage plates is respectively fixedly connected to one side of the outer wall of the extension frame B.

[0008] Preferably, the top of the main body structure is fixedly connected with an injection molding mechanism; The injection molding mechanism includes a U-shaped frame and a mounting plate; the top of the U-shaped frame is fixedly connected to a top plate, the top of the top plate is fixedly connected to a cylinder B, the telescopic end of the cylinder B is fixedly connected to a linkage frame, the bottom of the linkage frame is fixedly installed with a mounting frame, and the bottom of the mounting frame is fixedly connected to an upper mold; A group of electromagnets is fixedly connected to the bottom of the upper mold, a sealing plate is fixedly connected to the bottom of the upper mold, and an injection valve is fixedly connected to the top of the upper mold.

[0009] Preferably, a group of slide plates B are fixedly connected to the bottom of the inner wall of the mounting plate, a threaded rod B is rotatably connected between the insides of the two mounting plates, a micro motor is fixedly connected to one side of the outer wall of the mounting plate, and the rotating end of the micro motor is fixedly connected to one side of the outer wall of the threaded rod B, a movable seat B is threadedly connected to the outer wall of the threaded rod B, and the movable seat B is slidably embedded between the outer walls of a group of slide plates B.

[0010] Preferably, the top of the movable seat B is fixedly connected to an air pump, the output end of the air pump is fixedly connected to an air nozzle, the top of the injection valve is fixedly connected to a hose, and the input end of the hose is fixedly connected to a transfer pipe.

[0011] Preferably, an adjustment mechanism is fixedly inserted at the top center of the main body mechanism, and the adjustment mechanism includes a bearing seat and a driving motor; A rotating rod is fixedly inserted into the inner surface wall of the bearing seat, a linkage disk is fixedly connected to the top of the rotating rod, four placement seats are fixedly connected to the top of the linkage disk, a gear A is fixedly connected to the bottom of the rotating rod, and a transmission belt is meshed between the rotating end of the driving motor and the outer surface wall of the gear A.

[0012] Preferably, a moving mechanism is fixedly installed on the top of the main body mechanism; The moving mechanism includes a protective frame, the inner surface wall of the protective frame is fixedly connected to two mounting seats, a threaded rod A is rotatably connected between the insides of the two mounting seats, a slide plate A is fixedly connected to the bottom of the inner walls of the two mounting seats, the outer surfaces of the two threaded rods A are threadedly connected to threaded seats, and the two threaded seats are slidably embedded between the outer surfaces of the two slide plates A, and an internal drive motor is fixedly connected to one side of the outer walls of the two threaded rods A.

[0013] Preferably, a conveyor belt is fixedly connected to the inner wall of the protective frame, a vertical plate is fixedly connected between the tops of the two threaded seats, a limiting plate is fixedly connected to one side of the inner wall of the vertical plate, and a movable seat A is slidably embedded in the outer wall of the limiting plate.

[0014] Preferably, the top of the vertical plate is fixedly connected to a cylinder A, and the telescopic end of the cylinder A is fixedly connected to the top of the movable seat A, the bottom of the movable seat A is fixedly connected to a negative pressure pump, and the negative pressure end of the negative pressure pump is fixedly connected to a suction cup.

[0015] Preferably, the main structure includes a general frame, a group of electric support plates are fixedly connected to the bottom of the general frame, a group of rollers are fixedly inserted into the bottom of the general frame, a compressor is fixedly connected to the bottom of the inner wall of the general frame, and the output end of the compressor is fixedly connected to the input end of the transfer pipe.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, firstly, when the equipment is in use, the electromagnet at the bottom of the upper mold cooperates with the magnetic attraction component in the detection mechanism to clamp and fix the four corners of the environmentally friendly PVC composite film to be detected, and at the same time, the internal built-in motor drives the transmission gear and the tooth plate to pull the four corners of the composite film to move. Combined with the width adjustment of the previous detection mechanism, the flatness of the composite film during the detection process is effectively guaranteed. This greatly reduces the situation where the edge of the composite film is not fully fitted with the sealing component of the detection equipment due to its soft texture and uneven surface, reduces the possibility of small gaps on the edge, avoids external air infiltration and internal detection gas leakage, and enables the detection device to more accurately capture the changes caused by small leaks, reduce misjudgments and missed judgments, and improve the reliability and accuracy of the detection results.

[0017] 2. In the present invention, through the internal drive motor, threaded rod, threaded seat and other components, in conjunction with the conveyor belt, cylinder and negative pressure pump, the composite film on the conveyor belt can be automatically adsorbed, transferred and placed on the placement seat in the detection mechanism. The cylinder B of the injection molding mechanism can drive the upper mold to move up and down, and the micro motor can drive the air pump nozzle to move to achieve automatic injection molding and sealing detection. The built-in motor, micro cylinder, etc. inside the detection mechanism can also automatically complete the fixing, adjustment and detection operations of the composite film. The entire detection process has a high degree of automation, reduces manual intervention, and improves detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a main structural plan view of an environmentally friendly PVC composite membrane air tightness detection device of the present invention; Figure 2 This is a main structural stereogram of an environmentally friendly PVC composite film air tightness detection device of the present invention; Figure 3 It is a partial structural stereogram of an environmentally friendly PVC composite film air tightness detection device of the present invention; Figure 4 A three-dimensional diagram of an adjustment mechanism in an environmentally friendly PVC composite film air tightness detection device of the present invention; Figure 5 A three-dimensional diagram of an injection molding mechanism in an environmentally friendly PVC composite film air tightness detection device of the present invention; Figure 6 It is a plan view of the upper mold in an environmentally friendly PVC composite film air tightness detection device of the present invention; Figure 7 This is a sectional three-dimensional exploded view of a detection mechanism in an environmentally friendly PVC composite film air tightness detection device of the present invention; Figure 8 This is a three-dimensional exploded view of a detection mechanism in an environmentally friendly PVC composite film air tightness detection device of the present invention; Fig. 9 It is a partial sectional three-dimensional exploded view of a detection mechanism in an environmentally friendly PVC composite film air tightness detection device of the present invention; Fig.10 This invention is an environmentally friendly PVC composite film air tightness detection device Fig. 9 A magnified view of structure A.

[0019] In the figure: 1. Main body; 11. General frame; 111. Electric support plate; 112. Roller; 113. Compressor; 2. Moving mechanism; 21. Protection frame; 22. Mounting seat; 221. Threaded rod A; 222. Slide plate A; 223. Threaded seat; 23. Internal drive motor; 24. Conveyor belt; 25. Vertical plate; 251. Limit plate; 252. Moving seat A; 26. Cylinder A; 27. Negative pressure pump; 271. Suction cup; 3. Adjustment mechanism; 31. Bearing seat; 311. Rotating rod; 32. Linkage plate; 321. Placement seat; 33. Gear A; 331. Transmission belt; 34. Driving motor; 4. Injection molding mechanism; 41. U-shaped frame; 411. Top plate; 42. Cylinder B; 43. Linkage frame; 431. Mounting frame; 44. Upper mold Tools; 441, electromagnet; 442, sealing plate; 443, injection valve; 46, mounting plate; 461, slide plate B; 462, threaded rod B; 47, micro motor; 471, moving seat B; 48, air pump; 481, air nozzle; 49, transfer tube; 491, hose; 5, detection mechanism; 51, injection seat; 511, injection valve; 512, inner circulation groove; 52, crossbeam plate; 521, embedded groove; 522, air groove; 523, mounting groove; 524, negative pressure plate; 53, embedded plate; 531, magnetic attraction component; 54, built-in motor; 541, inner rod; 542, transmission gear; 55, tooth plate; 56, extension frame A; 561, extension groove; 57, extension block; 571, extension frame B; 58, micro cylinder; 581, linkage plate. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the implementation rules described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Embodiment 1, refer to Figure 1-Figure 10 As shown: The present invention provides an environmentally friendly PVC composite film air tightness detection device, comprising: a main body mechanism 1, an adjustment mechanism 3 is fixedly installed inside the main body mechanism 1, and a detection mechanism 5 is placed on the inner surface wall of the adjustment mechanism 3; The detection mechanism 5 includes an injection molding seat 51; an injection molding valve 511 is fixedly connected to one side of the inner wall of the injection molding seat 51, an inner circulation groove 512 is provided inside the injection molding seat 51, two cross beam plates 52 are slidably embedded inside the injection molding seat 51, a group of embedded grooves 521 are preset inside the two cross beam plates 52, air grooves 522 are provided inside the two cross beam plates 52, mounting grooves 523 are provided inside the two cross beam plates 52, embedded plates 53 are slidably embedded in the inner surface walls of the two groups of embedded grooves 521, magnetic suction components 531 are fixedly connected to the tops of the two embedded plates 53, built-in motors 54 are fixedly inserted into the inner surface walls of the two mounting grooves 523, the rotating ends of the two built-in motors 54 are fixedly connected to inner rods 541, the bottoms of the two inner rods 541 are fixedly connected to transmission gears 542, and the outer walls of the two transmission gears 542 are meshed with transmission gears. There is a group of tooth plates 55, and the tops of the two groups of tooth plates 55 are fixedly connected to the bottoms of the embedded plates 53 respectively. One side of the outer wall of one of the two cross beam plates 52 is fixedly connected with two groups of extension frames A56. The interiors of the two groups of extension frames A56 are preset with extension grooves 561. The inner surface walls of the two groups of extension grooves 561 are slidably embedded with extension blocks 57. The outer walls of the two groups of extension blocks 57 are fixedly connected with extension frames B571, and the interiors of the two groups of extension frames A56 and the two groups of extension frames B571 are respectively connected to the interior of the air groove 522. The tops of the two cross beam plates 52 are fixedly connected with a group of negative pressure plates 524. One side of the outer walls of the two extension frames A56 are fixedly connected with micro cylinders 58. The telescopic ends of the two micro cylinders 58 are fixedly connected with linkage plates 581, and one side of the outer walls of the two linkage plates 581 are respectively fixedly connected to one side of the outer wall of the extension frame B571.

[0021] In this embodiment, during detection, the micro motor 47 is energized, and its output end begins to rotate, thereby driving the threaded rod B462 to rotate. When the threaded rod B462 rotates, a threaded transmission is generated with the inside of the movable seat B471. In addition, the movable seat B471 can be slidably embedded in the outer wall of the slide plate B461, which makes the air nozzle 481 at the output end of the air pump 48 move to one side. Finally, the air nozzle 481 will pass through the injection molding seat 51, so that the output end of the air nozzle 481 can be inserted into the inside of the injection molding valve 511. At this time, the air pump 48 begins to produce an adsorption effect, and the negative pressure state is transmitted to the inside of the two cross beams 52 through the inner circulation groove 512, so that the inside of the cross beam 52 is maintained Negative pressure, then, the two sets of negative pressure plates 524 will act on the bottom of the environmentally friendly PVC composite film under the action of this negative pressure, and adsorb it. Finally, the compressor 113 is started, and the relevant substances are transmitted to the top of the environmentally friendly PVC composite film through the transfer pipe 49 and the hose 491 through the injection valve 443. In addition, an air pressure sensor is provided at the internal base of the injection molding seat 51, which can collect the air pressure data in the sealing detection cavity in real time, and then analyze and process these data according to the preset algorithm based on the air permeability of the environmentally friendly PVC composite film to determine whether the air tightness of the environmentally friendly PVC composite film is qualified, and at the same time, it can also display and store the detection data.

[0022] Embodiment 2, according to Figure 1-Figure 6 As shown, the top of the main body mechanism 1 is fixedly connected with an injection molding mechanism 4; The injection molding mechanism 4 includes a U-shaped frame 41 and a mounting plate 46; the top of the U-shaped frame 41 is fixedly connected to a top plate 411, the top of the top plate 411 is fixedly connected to a cylinder B42, the telescopic end of the cylinder B42 is fixedly connected to a linkage frame 43, the bottom of the linkage frame 43 is fixedly installed with a mounting frame 431, and the bottom of the mounting frame 431 is fixedly connected to an upper mold 44; A group of electromagnets 441 are fixedly connected to the bottom of the upper mold 44, a sealing plate 442 is fixedly connected to the bottom of the upper mold 44, an injection valve 443 is fixedly connected to the top of the upper mold 44, a group of slides B461 are fixedly connected to the bottom of the inner wall of the mounting plate 46, a threaded rod B462 is rotatably connected between the insides of the two mounting plates 46, a micro motor 47 is fixedly connected to one side of the outer wall of the mounting plate 46, and the rotating end of the micro motor 47 is fixedly connected to one side of the outer wall of the threaded rod B462, a movable seat B471 is threadedly connected to the outer wall of the threaded rod B462, and the movable seat B471 is slidably embedded between the outer walls of a group of slides B461, an air pump 48 is fixedly connected to the top of the movable seat B471, and the output end of the air pump 48 is fixedly connected to an air nozzle 481, the top of the injection valve 443 is fixedly connected to a hose 491, and the input end of the hose 491 is fixedly connected to a transfer pipe 49.

[0023] In this embodiment, when the driving motor 34 at the bottom is energized, its output end starts to rotate, and a meshing transmission relationship is formed between the rotating end of the driving motor 34, the transmission belt 331 and the gear A33. The top of the gear A33 is fixedly connected to the rotating rod 311, so the rotating rod 311 will rotate with the rotation of the gear A33, thereby driving the linkage disk 32 and a group of placement seats 321 installed on the top thereof to rotate, so that the placement seat 321 on which the environmentally friendly PVC composite film is placed can complete a 180-degree rotation, so that the product is exactly located at the bottom of the upper mold 44. Subsequently, the cylinder B42 is energized and uses its own elasticity to push the linkage frame 43 and the components fixed thereto to move downward. In this process, the linkage frame 43 is slidably embedded in the outer wall of the top plate 411 to ensure the stability of the movement. When the upper mold 44 fixedly installed at the bottom of the linkage frame 43 reaches the inside of the detection mechanism 5, the sealing plate 442 on the top of the upper mold 44 will also The movably embedded detection mechanism 5 seals the environmentally friendly PVC composite film between the two. At the same time, a group of electromagnets 441 will also fall into the magnetic attraction component 531. After being energized, magnetic force is generated to clamp and fix the four corners of the environmentally friendly PVC composite film. After that, the two internal built-in motors 54 are energized, and the transmission gear 542 fixed at the bottom is driven to rotate with the inner rod 541 as the medium. When the two transmission gears 542 rotate, they will drive the two groups of tooth plates 55 to move to both sides respectively. Since the bottom of one side of the two groups of tooth plates 55 is fixedly connected to the bottom of the embedding plate 53 respectively, when the two groups of embedding plates 53 are respectively embedded and moved in the embedding groove 521, the four corners of the PVC composite film will be pulled to move to both ends. Combined with the previous width adjustment operation, the four corners of the environmentally friendly PVC composite film can be adjusted separately, so that the environmentally friendly PVC composite film maintains flatness during the adjustment process, and the possibility of small gaps at the edge of the composite film is reduced.

[0024] Embodiment 3, according to Figure 1-Figure 3 as well as Figure 5-Figure 10 As shown, an adjustment mechanism 3 is fixedly inserted at the top center of the main mechanism 1, and the adjustment mechanism 3 includes a bearing seat 31 and a driving motor 34; A rotating rod 311 is fixedly inserted into the inner surface wall of the bearing seat 31, a linkage disk 32 is fixedly connected to the top of the rotating rod 311, four placement seats 321 are fixedly connected to the top of the linkage disk 32, a gear A33 is fixedly connected to the bottom of the rotating rod 311, and a transmission belt 331 is meshed and transmitted between the rotating end of the driving motor 34 and the outer surface wall of the gear A33; A moving mechanism 2 is fixedly installed on the top of the main mechanism 1; The mobile mechanism 2 includes a protective frame 21, the inner surface wall of the protective frame 21 is fixedly connected to two mounting seats 22, the insides of the two mounting seats 22 are rotatably connected with threaded rods A221, the bottoms of the inner walls of the two mounting seats 22 are fixedly connected to slide plates A222, the outer walls of the two threaded rods A221 are threadedly connected to threaded seats 223, and the two threaded seats 223 are slidably embedded between the outer walls of the two slide plates A222, and one side of the outer walls of the two threaded rods A221 is fixedly connected to an internal drive motor 23, and the protective frame The inner surface wall of 21 is fixedly connected with a conveyor belt 24, a vertical plate 25 is fixedly connected between the tops of the two threaded seats 223, a limiting plate 251 is fixedly connected to one side of the inner wall of the vertical plate 25, a moving seat A252 is slidably embedded in the outer surface wall of the limiting plate 251, a cylinder A26 is fixedly connected to the top of the vertical plate 25, and the telescopic end of the cylinder A26 is fixedly connected to the top of the moving seat A252, a negative pressure pump 27 is fixedly connected to the bottom of the moving seat A252, and a suction cup 271 is fixedly connected to the negative pressure end of the negative pressure pump 27; The main structure 1 includes a general frame 11, a group of electric support plates 111 are fixedly connected to the bottom of the general frame 11, a group of rollers 112 are fixedly inserted into the bottom of the general frame 11, a compressor 113 is fixedly connected to the bottom of the inner wall of the general frame 11, and the output end of the compressor 113 is fixedly connected to the input end of the transfer pipe 49.

[0025] In this embodiment, before using the equipment, it is necessary to make preliminary adjustments to the multiple detection mechanisms 5. Driven by the synchronizer, the telescopic ends of the two micro cylinders 58 will be in a telescopic state at the same time, thereby pushing the linkage plate 581 to move forward. Since the two linkage plates 581 are fixedly connected to the extension frame B571 respectively, with the cooperation of the two groups of extension blocks 57 being embedded and moved in the extension groove 561 respectively, the extension frame A56 and the extension frame B571 can realize the embedded movement between each other, so as to adjust the detection mechanism 5 according to the width of the composite film. When the equipment is used, the environmentally friendly PVC composite film to be detected is first placed on the conveyor belt 24, and the composite film is conveyed to the inside of the equipment through the automatic transmission of the conveyor belt 24. Then, the cylinder A26 becomes elastic after being energized, pushing the moving seat A252 fixed to its bottom to move downward. During this process, the moving seat A252 can be slidably embedded between the outer walls of the limit plate 251 to ensure the stability of the movement. When the movable seat A252 moves up and down, it will drive the negative pressure pump 27 and the suction cup 271 fixedly connected at the bottom to move downward together. When the suction cup 271 contacts the top of the environmentally friendly PVC composite film, under the action of the negative pressure pump 27, the inside of the suction cup 271 will be in a negative pressure state, so that the PVC composite film is firmly adsorbed on the bottom of the suction cup 271. Subsequently, the internal drive motor 23 is energized, and its output end drives the threaded rod A221 to rotate in the mounting seat 22. During the rotation process, threaded transmission is generated between the threaded rod A221 and the threaded seat 223, and with the cooperation of the two threaded seats 223 sliding and limiting on the outer wall of the slide plate A222, the vertical plate 25 and the components linked thereto can achieve lateral movement, thereby moving the position of the product adsorbed on the bottom of the suction cup 271 and transferring the product to the top of the placement seat 321. Finally, the negative pressure pump 27 controls the suction cup 271 to release the negative pressure state, so that the product can be accurately placed between the inner walls of the detection mechanism 5 inside the placement seat 321.

[0026] The working principle of the whole mechanism is as follows: first, before the equipment is used, it is necessary to make preliminary adjustments to the multiple detection mechanisms 5. When the two micro cylinders 58 are driven by the synchronizer, their telescopic ends are simultaneously in a telescopic state, so as to push the linkage plate 581 to move forward, and the two linkage plates 581 are respectively in a fixed connection with the extension frame B571. When the two groups of extension blocks 57 are respectively embedded and moved in the extension groove 561, the extension frame A56 and the extension frame B571 are kept embedded and moved with each other. According to the width of the composite film, the detection mechanism 5 is adjusted. When in use, the environmentally friendly PVC composite film to be detected is placed on the conveyor belt 24, and then automatically transferred to the interior of the equipment through the conveyor belt 24. Then, when the cylinder A26 is energized, it generates its own elasticity and pushes the moving seat A252 fixed to it at the bottom to move downward. In this process, the moving seat A252 can be slidably embedded between the outer walls of the limit plate 251, so as to maintain the stability of the movement of the moving seat A252. When the movable seat A252 moves up and down, the negative pressure pump 27 and the suction cup 271 fixed at the bottom are pushed downward. When the suction cup 271 contacts the top of the environmentally friendly PVC composite film, the negative pressure pump 27 is used to keep the inside of the suction cup 271 in a negative pressure state, so that the PVC composite film can be firmly adsorbed on the bottom of the suction cup 271. Then, when the internal drive motor 23 is powered on, its output end can drive the threaded rod A221 to rotate inside the mounting seat 22, and during the rotation, the threaded rod A221 rotates automatically. The rod A221 can generate a threaded transmission with the inside of the threaded seat 223, and the two threaded seats 223 are slidably limited between the outer walls of the slide plate A222, so that the vertical plate 25 and the components linked thereto can be moved horizontally, thereby moving the position of the product adsorbed by the bottom of the suction cup 271, and transferring the product to the top of the placement seat 321. Then, the negative pressure pump 27 controls the negative pressure state inside the suction cup 271, so as to ensure that the product can be accurately placed between the inner walls of the detection mechanism 5 inside the placement seat 321; Then, when the bottom driving motor 34 is energized, its output end can rotate, because the rotating end of the driving motor 34, the transmission belt 331 and the gear A33 are in a state of meshing transmission, and the top of the gear A33 is fixed to the rotating rod 311, and the rotation of the rotating rod 311 drives the linkage disk 32 and a group of placement seats 321 installed on the top to rotate, which can keep the placement seat 321 with the environmentally friendly PVC composite film rotating 180 degrees, so that the product can be located at the bottom of the upper mold 44, and then the cylinder B42 can generate elasticity when it is energized, pushing the linkage frame 43 and the components fixed thereto to move downward, and in this process, the linkage frame 43 is slidably embedded in the outer wall of the top plate 411 to maintain the stability of the linkage frame 43, and when the upper mold 44 fixedly installed at the bottom can be effectively placed inside the detection mechanism 5, after the upper mold 44 is placed on the top of the detection mechanism 5, the sealing plate 442 can also be movably embedded in the detection mechanism The interior of the structure 5 can also keep the environmentally friendly PVC composite film sealed inside the two. At the same time, a group of electromagnets 441 are also placed inside the magnetic attraction component 531. When powered on, they generate electromagnetic force, which can clamp and fix the four corners of the environmentally friendly PVC composite film. Then, the two built-in motors 54 arranged inside thereof use the inner rod 541 as a medium to drive the transmission gear 542 fixed at the bottom to rotate. During the rotation of the two transmission gears 542, the two groups of tooth plates 55 are respectively driven to move to both sides, and the bottom of one side of the two groups of tooth plates 55 is respectively in a fixed connection with the bottom of the embedded plate 53. When the two groups of embedded plates 53 are respectively embedded and moved in the embedded groove 521, the four corners of the VC composite film are pulled to move to both ends. In cooperation with the above-mentioned width adjustment, the four corners of the environmentally friendly PVC composite film can be adjusted respectively. During the adjustment process, the environmentally friendly PVC composite film itself can be kept in a flatness adjustment to reduce the tiny gaps at the edge of the composite film. Finally, during the detection process, the micro motor 47 rotates when powered on, driving the threaded rod B462 to rotate, and in the rotating state, a threaded transmission is generated inside the moving seat B471, and the moving seat B471 is slidably embedded in the outer wall of the slide plate B461, driving the air pump 48 and the air nozzle 481 to move to one side, and finally the air nozzle 481 passes through the injection seat 51, keeping the output end of the air nozzle 481 inserted into the injection valve 511, and the air pump 48 produces adsorption, and the negative pressure state is transmitted to the inside of the two cross beams 52 through the inner circulation groove 512, keeping the inside in In the negative pressure state, two sets of negative pressure plates 524 act on the bottom of the environmentally friendly PVC composite film respectively, thereby reducing the gap generated, and finally the compressor 113 is started, and the air is transmitted to the top of the environmentally friendly PVC composite film through the transmission tube 49 and the hose 491 through the injection valve 443. A pressure sensor is set at the bottom of the injection seat 51 to collect the air pressure data in the sealing detection cavity in real time. According to the air permeability of the environmentally friendly PVC composite film and the preset algorithm, the data is analyzed and processed to determine whether the air tightness of the environmentally friendly PVC composite film is qualified, and the monitoring data can be displayed and stored at the same time.

[0027] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An environmentally friendly PVC composite film air tightness detection device, comprising: The main body mechanism (1) is characterized in that an adjustment mechanism (3) is fixedly installed inside the main body mechanism (1), and a detection mechanism (5) is placed on the inner surface wall of the adjustment mechanism (3); The detection mechanism (5) comprises an injection molding seat (51); an injection molding valve (511) is fixedly connected to one side of the inner wall of the injection molding seat (51); an inner circulation groove (512) is provided inside the injection molding seat (51); two cross beams (52) are slidably embedded inside the injection molding seat (51); a group of embedded grooves (521) are preset inside the two cross beams (52); air grooves (522) are provided inside the two cross beams (52); mounting grooves (523) are provided inside the two groups of embedded grooves (521); the inner surfaces of the two groups of embedded grooves (521) are The walls are slidably embedded with an embedding plate (53), the tops of the two embedding plates (53) are fixedly connected with a magnetic attraction component (531), the inner surface walls of the two installation grooves (523) are fixedly inserted with a built-in motor (54), the rotating ends of the two built-in motors (54) are fixedly connected with an inner rod (541), the bottoms of the two inner rods (541) are fixedly connected with a transmission gear (542), the outer surface walls of the two transmission gears (542) are meshed with a group of toothed plates (55), and the tops of the two groups of toothed plates (55) are respectively fixedly connected to the bottom of the embedding plate (53).

2. The environmentally friendly PVC composite film air tightness detection device according to claim 1 is characterized in that: One side of the outer wall of one of the two cross beam plates (52) is fixedly connected with two groups of extension frames A (56), and the interior of the two groups of extension frames A (56) is preset with an extension groove (561), and the inner surface wall of the two groups of extension grooves (561) is slidably embedded with an extension block (57), and the outer surface wall of the two groups of extension blocks (57) is fixedly connected with an extension frame B (571), and the interior of the two groups of extension frames A (56) and the two groups of extension frames B (571) are respectively connected to the interior of the air groove (522), and the top of the two cross beam plates (52) is fixedly connected with a group of negative pressure plates (524), and one side of the outer wall of the two extension frames A (56) is fixedly connected with a micro cylinder (58), and the telescopic ends of the two micro cylinders (58) are fixedly connected with a linkage plate (581), and one side of the outer wall of the two linkage plates (581) is respectively fixedly connected to one side of the outer wall of the extension frame B (571).

3. The environmentally friendly PVC composite film air tightness detection device according to claim 1 is characterized in that: The top of the main body mechanism (1) is fixedly connected with an injection molding mechanism (4); The injection molding mechanism (4) comprises a U-shaped frame (41) and a mounting plate (46); the top of the U-shaped frame (41) is fixedly connected to a top plate (411), the top of the top plate (411) is fixedly connected to a cylinder B (42), the telescopic end of the cylinder B (42) is fixedly connected to a linkage frame (43), the bottom of the linkage frame (43) is fixedly mounted with a mounting frame (431), and the bottom of the mounting frame (431) is fixedly connected to an upper mold (44); A group of electromagnets (441) are fixedly connected to the bottom of the upper mold (44), a sealing plate (442) is fixedly connected to the bottom of the upper mold (44), and an injection valve (443) is fixedly connected to the top of the upper mold (44).

4. The environmentally friendly PVC composite film air tightness detection device according to claim 3 is characterized in that: A group of slide plates B (461) are fixedly connected to the bottom of the inner wall of the mounting plate (46), a threaded rod B (462) is rotatably connected between the insides of the two mounting plates (46), a micro motor (47) is fixedly connected to one side of the outer wall of the mounting plate (46), and the rotating end of the micro motor (47) is fixedly connected to one side of the outer wall of the threaded rod B (462), and a movable seat B (471) is threadedly connected to the outer wall of the threaded rod B (462), and the movable seat B (471) is slidably embedded between the outer walls of the group of slide plates B (461).

5. The environmentally friendly PVC composite film air tightness detection device according to claim 4 is characterized in that: The top of the movable seat B (471) is fixedly connected to an air pump (48), the output end of the air pump (48) is fixedly connected to an air nozzle (481), the top of the injection valve (443) is fixedly connected to a hose (491), and the input end of the hose (491) is fixedly connected to a transfer pipe (49).

6. The environmentally friendly PVC composite film air tightness detection device according to claim 1, characterized in that: An adjustment mechanism (3) is fixedly inserted at the top center of the main body mechanism (1), and the adjustment mechanism (3) comprises a bearing seat (31) and a driving motor (34); A rotating rod (311) is fixedly inserted into the inner surface wall of the bearing seat (31), a linkage disk (32) is fixedly connected to the top of the rotating rod (311), four placement seats (321) are fixedly connected to the top of the linkage disk (32), a gear A (33) is fixedly connected to the bottom of the rotating rod (311), and a transmission belt (331) is meshed and transmitted between the rotating end of the driving motor (34) and the outer surface wall of the gear A (33).

7. The environmentally friendly PVC composite film air tightness detection device according to claim 6, characterized in that: A moving mechanism (2) is fixedly mounted on the top of the main mechanism (1); The moving mechanism (2) comprises a protective frame (21), the inner surface wall of the protective frame (21) is fixedly connected to two mounting seats (22), the interiors of the two mounting seats (22) are rotatably connected to a threaded rod A (221), the bottoms of the inner walls of the two mounting seats (22) are fixedly connected to a slide plate A (222), the outer surfaces of the two threaded rods A (221) are threadedly connected to a threaded seat (223), and the two threaded seats (223) are slidably embedded between the outer surfaces of the two slide plates A (222), and one side of the outer walls of the two threaded rods A (221) is fixedly connected to an internal drive motor (23).

8. The environmentally friendly PVC composite film air tightness detection device according to claim 7, characterized in that: A conveyor belt (24) is fixedly connected to the inner surface wall of the protection frame (21); a vertical plate (25) is fixedly connected between the tops of the two threaded seats (223); a limiting plate (251) is fixedly connected to one side of the inner wall of the vertical plate (25); and a movable seat A (252) is slidably embedded in the outer surface wall of the limiting plate (251).

9. The environmentally friendly PVC composite film air tightness detection device according to claim 8, characterized in that: The top of the vertical plate (25) is fixedly connected to a cylinder A (26), and the telescopic end of the cylinder A (26) is fixedly connected to the top of the movable seat A (252), the bottom of the movable seat A (252) is fixedly connected to a negative pressure pump (27), and the negative pressure end of the negative pressure pump (27) is fixedly connected to a suction cup (271).

10. The environmentally friendly PVC composite film air tightness detection device according to claim 5, characterized in that: The main body mechanism (1) comprises a main frame (11), a group of electric support plates (111) are fixedly connected to the bottom of the main frame (11), a group of rollers (112) are fixedly inserted into the bottom of the main frame (11), a compressor (113) is fixedly connected to the bottom of the inner wall of the main frame (11), and the output end of the compressor (113) is fixedly connected to the input end of the transfer pipe (49).

Images