A grading conveying device and method based on health product packaging bottle processing

Abstract

The application discloses a kind of based on health-care product packaging bottle processing's hierarchical conveying device and method, it is related to the technical field of packaging bottle conveying detection.The present application includes the big and small packaging bottle being arranged on conveying table, further includes: conveying unit, main conveying belt is arranged in it, and sorting assembly for sorting big and small packaging bottle is arranged on main conveying belt;Conveying table is provided with preferred unit;Preferred unit includes appearance detection assembly, air tightness detection assembly and rejection assembly.The advantages are that: the present application can be according to the volume of packaging bottle and be divided into corresponding sub-conveying belt and be conveyed, can realize the automatic classification and independent conveying of big and small packaging bottle, and appearance defect and air tightness detection can be carried out to packaging bottle in conveying process, and the substandard product in packaging bottle is detected in real time, and the substandard product can be rejected from sub-conveying belt in real time, avoid substandard product mixed in qualified bottle and affect the final product effect, conveying efficiency is higher, and functionality is stronger.

Description

Technical Field

[0001] This invention relates to the technical field of packaging bottle conveying and inspection, and in particular to a graded conveying device and method based on the processing of health product packaging bottles. Background Technology

[0002] Health product packaging bottles refer to bottles made of plastic materials such as PP and PE used to store special food-grade health products. After the initial processing is completed, they are usually transported to the subsequent processing system by a graded conveying device, so as to achieve efficient and orderly transport and conduction of packaging bottles and improve the processing efficiency of packaging bottles.

[0003] Existing conveying devices employ various methods to convey packaged bottles, such as a glass bottle conveying device for an intelligent glass bottle packaging machine with publication number CN119038037A; the device includes a motor fixed to the bottom surface of the conveying device, a screw fixed to the output end of the motor, a moving block sleeved on the outer surface of the screw, a transmission plate on the inner surface of the moving block, an upper push plate fixed to one end of a connecting rod, a roller on one side surface of the upper push plate, and a lower push plate fixed to the other end of the connecting rod. Existing conveying devices only use conveyor belts to transport various types of packaging bottles. However, they cannot automatically classify the bottles according to their size during transport, and cannot classify and transport bottles of different sizes. For example, the aforementioned prior art uses a conveyor belt to transport the bottles and adjusts the position of the bottles during transport to prevent blockage. However, this device cannot distinguish and classify bottles of different sizes, and it cannot perform external and internal inspection of the bottles during transport. In other words, it cannot remove defective products from the bottles during transport, resulting in poor functionality and certain limitations. Therefore, there is an urgent need to design a graded conveying device and method based on the processing of health product packaging bottles to solve the above problems. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a graded conveying device and method based on the processing of health product packaging bottles, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a graded conveying device for processing health product packaging bottles, comprising multiple large and small packaging bottles to be conveyed, arranged on a conveyor table, and further comprising: The conveying unit is set on the conveying platform. It is equipped with a main conveyor belt for conveying packaging bottles. The conveying platform is also equipped with two sub-conveyor belts that cooperate with the main conveyor belt for conveying large and small packaging bottles respectively. The main conveyor belt is equipped with sorting components for sorting large and small packaging bottles. The conveyor platform is equipped with two preferred units that cooperate with the corresponding conveyor belts; The preferred unit includes an appearance inspection component, an airtightness inspection component, and a rejection component. The appearance inspection component is equipped with an appearance inspection instrument for detecting appearance defects of the packaging bottle. The airtightness inspection component is equipped with multiple air extraction pipes for extracting air from the packaging bottle, and each air extraction pipe is equipped with an air pressure detector for detecting the change in air pressure inside the packaging bottle. The rejection component is equipped with an air blowing box for blowing out defective packaging bottles.

[0006] Preferably, the conveyor platform is equipped with a control host, which is used to control the opening, closing and operation status of the conveying unit and the sorting unit, so as to realize the automated conveying, sorting and screening of large and small packaging bottles.

[0007] Preferably, the main conveyor belt is set on the conveyor platform to realize the synchronous conveying of large and small packaging bottles. The main conveyor belt and the two sub-conveyor belts are all equipped with baffles on the outside to prevent the packaging bottles from falling. The conveyor platform is equipped with two output frames that cooperate with the corresponding sub-conveyor belts to convey qualified packaging bottles.

[0008] Preferably, the sorting component includes a sorting baffle mounted on the shield plate for blocking the main conveyor belt. The sorting baffle plate has a small bottle inlet and a large bottle inlet. The small bottles are guided into the rear conveyor belt for transporting small bottles after being limited by the small bottle inlet, and the large bottles are guided into the rear conveyor belt for transporting large bottles after being limited by the large bottle inlet. An adjusting baffle plate for adjusting the conveying angle of the large and small bottles is rotatably installed at the front end of the main conveyor belt on the shield plate.

[0009] Preferably, the preferred unit includes a detection frame fixedly installed on the conveyor table, and the detection frame is sleeved on the upper part of the sub-conveyor belt; The appearance inspection component includes two conveyor side plates fixedly installed inside the inspection frame. Multiple auxiliary wheels for driving the packaging bottle to rotate are rotatably installed on both conveyor side plates. Multiple appearance inspection instruments are respectively installed on the corresponding two conveyor side plates for observing external defects of the packaging bottle during the rotating conveying process.

[0010] Preferably, the airtightness testing component includes a device box fixedly installed on the conveyor table, a servo motor fixedly installed on the device box, a drive roller for outputting power fixedly installed on the drive end of the servo motor, an active helical gear fixedly installed on the drive roller, a linkage roller rotatably installed on the device box, and a driven helical gear meshing with the active helical gear fixedly installed on the linkage roller. A vacuum pump is slidably mounted on the detection frame, and a lifting mechanism is installed between the vacuum pump and the linkage roller. Multiple suction cylinders are fixedly connected to the vacuum pump, and multiple rubber sealing rings for sealing the bottle mouth are fixedly installed on each suction cylinder. Multiple suction pipes are fixedly connected to the lower part of the corresponding suction cylinder.

[0011] Preferably, the lifting mechanism includes a synchronous bending rod fixedly installed on the side of the vacuum pump, a reciprocating lead screw fixedly installed on the linkage roller, and a ball nut disc that cooperates with the reciprocating lead screw fixedly installed on the synchronous bending rod.

[0012] Preferably, the rejection assembly includes a compression chamber fixedly installed inside the equipment box, and the compression chamber is rotatably connected to the drive roller. A rotating wheel located inside the compression chamber is fixedly installed on the drive roller. An air collecting plate is slidably installed inside the compression chamber. A traction shaft is fixedly installed on the lower part of the air collecting plate. An eccentric shaft is fixedly installed on the rotating wheel, and a traction rod is rotatably connected between the eccentric shaft and the traction shaft. An air guiding mechanism is installed inside the compression chamber.

[0013] Preferably, the air guiding mechanism includes a one-way air intake pipe fixedly connected to the compression box for air intake, a one-way exhaust pipe fixedly connected to the compression box for exhaust, an air storage tank for storing compressed air fixedly connected to the one-way exhaust pipe, and an air blowing box fixedly connected to the air storage tank. A gas distribution pipe is fixedly connected to the one-way exhaust pipe, and another gas storage tank is fixedly connected to the gas distribution pipe. A blowing box is also fixedly connected to the other gas storage tank. Both blowing boxes are set on the detection frame, with the front blowing box located behind the appearance detection component and the rear blowing box located behind the airtightness detection component. The conveyor table and the detection frame are equipped with two waste removal frames, namely a first waste removal frame and a second waste removal frame, which respectively cooperate with the two corresponding blowing boxes.

[0014] A graded conveying method for processing health product packaging bottles, using a graded conveying device for the aforementioned packaging bottle processing, includes the following steps: S1. Place multiple large and small packaging bottles to be transported on the main conveyor belt for transport, and after being sorted by the sorting component, the large and small packaging bottles will enter the corresponding sub-conveyor belts for continued transport. S2. The packaging bottles are continuously conveyed on the conveyor belt and enter the optimization unit; S3. When the packaging bottle passes through the appearance inspection component, the appearance inspection instrument inside will detect the appearance defects of the packaging bottle. After the defective product is detected, the high-pressure airflow is blown out by the air box in the rejection component to blow the defective product away from the conveyor belt, thus completing the rejection of the packaging bottle with appearance defects. S4. Activate the air tightness detection component to perform an air tightness test on the packaging bottle. Extract the air from inside the packaging bottle through the air extraction tube, and monitor the change in air pressure inside the packaging bottle through the air pressure detector after 0.5 seconds to detect defective packaging bottles with poor air tightness. S5. Defective airtight products detected are blown away by the rejection component, while qualified packaging bottles continue to be conveyed and collected via a separate conveyor belt.

[0015] This invention provides a graded conveying device and method based on the processing of health product packaging bottles. It has the following beneficial effects: 1. When conveying packaging bottles, this conveying device can automatically classify and separate large and small packaging bottles by setting large and small feed ports on the classification baffle. After being conveyed by the main conveyor belt, large and small packaging bottles can be automatically sorted by the classification baffle and enter the corresponding two sub-conveyor belts. This allows for rapid classification of packaging bottles of different sizes during the conveying process, achieving independent conveying of large and small packaging bottles and resulting in better conveying effect.

[0016] 2. When conveying packaging bottles, this conveying device can drive the bottles to rotate by the friction of multiple rotating auxiliary wheels and the forward pushing effect of the conveyor belt when the bottles are conveyed between the two conveyor side plates. During the rotation and forward movement, multiple appearance inspection instruments scan the bottle body from all angles, checking for appearance defects such as cracks and burrs without blind spots. Defective products with appearance flaws are detected and marked in real time, realizing the screening of packaging bottles with good and bad appearance.

[0017] 3. When conveying packaging bottles, this conveying device uses a servo motor to drive the lifting mechanism to press down and seal the packaging bottle. Then, the air is extracted from the inside of the packaging bottle through the extraction pipe. After extraction, the air pressure inside the bottle is monitored by an air pressure detector. This allows for accurate identification of packaging bottles that do not meet the airtightness requirements during the conveying process, making it more functional.

[0018] 4. When conveying packaging bottles, this conveying device, through the cooperation of two sets of air blowing boxes in the rejection component, can directly blow away defective products with appearance defects after the appearance inspection component detects them through the high-pressure airflow from the front air blowing box. After the airtightness test, products that fail the airtightness test are directly blown away through the rear air blowing box. This allows for real-time rejection of defective products in the packaging bottles during the conveying process, preventing them from mixing into qualified packaging bottles and affecting the finished product.

[0019] In summary, this invention can sort packaging bottles into corresponding conveyor belts according to their size, enabling automatic classification and independent conveying of large and small packaging bottles. During the conveying process, it can detect appearance defects and airtightness of the packaging bottles, identify defective products in real time, and remove them from the conveyor belts in real time, preventing defective products from being mixed with qualified bottles and affecting the final product quality. This results in higher conveying efficiency and stronger functionality.

[0020] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings. Attached Figure Description

[0021] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein: Figure 1 This is a schematic diagram of the structure of a graded conveying device based on the processing of health product packaging bottles proposed in this invention; Figure 2 for Figure 1 A schematic diagram of the structure after rotation at a certain angle; Figure 3 for Figure 2 A schematic diagram of the main conveyor belt and two branch conveyor belts; Figure 4 for Figure 3 Enlarged view of the structure of the middle sorting baffle; Figure 5 for Figure 2 A schematic diagram of the structure of the detection frame and the equipment box; Figure 6 for Figure 5 Schematic diagram of the structure of the central detection frame and the conveyor belt; Figure 7 for Figure 6 A schematic diagram of the internal structure of the detection frame; Figure 8 for Figure 7 Schematic diagram of the structure of the two conveyor side plates; Figure 9 for Figure 5 Schematic diagram of the structure of the equipment box and vacuum pump; Figure 10 for Figure 9 Internal structure diagram of the equipment box; Figure 11 for Figure 10 A schematic diagram of the structure of the servo motor and the compressor box; Figure 12 for Figure 11 Schematic diagram of the internal structure of the intermediate compression chamber; Figure 13 for Figure 12 Front view of the internal structure of the compression chamber; Figure 14 for Figure 9 Schematic diagram of the structure of the servo motor and vacuum pump; Figure 15 for Figure 14 A schematic diagram of a medium vacuum pump and multiple packaging bottles; Figure 16 for Figure 15 A schematic diagram of the structure of the middle suction cylinder and the packaging bottle; Figure 17 for Figure 16 A schematic diagram of the internal structure of the medium-sized packaging bottle.

[0022] In the diagram: 1. Conveyor table; 2. Reciprocating screw; 3. Control host; 4. Main conveyor belt; 5. Packaging bottle; 6. Detection frame; 7. Sub-conveyor belt; 8. Waste removal frame one; 9. Waste removal frame two; 10. Output frame; 11. Baffle plate; 12. Classification baffle; 13. Rubber sealing ring; 14. Air suction cylinder; 15. Small bottle inlet; 16. Large bottle inlet; 17. Auxiliary roller; 18. Equipment box; 19. Servo motor; 20. Air pressure detector; 21. Air storage tank; 22. Conveyor. Side plate, 23 Vacuum pump, 24 Air blowing box, 25 Rotating auxiliary wheel, 26 Appearance inspection instrument, 27 Linkage roller, 28 Compression box, 29 Drive roller, 30 Ball bearing nut disc, 31 Air distribution pipe, 32 Synchronous bending rod, 33 One-way suction pipe, 34 Suction pipe, 35 One-way exhaust pipe, 36 Rotating wheel, 37 Air collection plate, 38 Eccentric shaft, 39 Traction rod, 40 Traction shaft, 41 Driving helical gear, 42 Driven helical gear. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0024] Example 1: Refer to Figures 1-2 A graded conveying device based on the processing of health product packaging bottles includes multiple large and small packaging bottles 5 to be conveyed, which are set on a conveyor table 1. The packaging bottles 5 are made of plastic material. After being graded and conveyed by the conveying device, they undergo subsequent processing steps such as coating, cleaning, and sterilization. After processing, they are packaged and stored as food-grade health products.

[0025] This conveying device also includes: The conveying unit is set on the conveyor table 1. The conveying unit is used to uniformly convey packaging bottles 5 of different sizes and achieves automatic classification and diversion of packaging bottles 5 by relying on specification limits. It separates and independently conveys bottles of different sizes, which can replace manual sorting and classification, solve the drawbacks of traditional equipment that cannot be conveyed by specification. The entire process is continuous feeding and diversion, the conveying is neat and not easy to block, and improves the level of automation of packaging.

[0026] The conveyor 1 is equipped with two optimization units that cooperate with the corresponding sub-conveyor belts 7. The optimization units are used to simultaneously complete the full-circumference inspection of the appearance of the packaging bottle 5 and the airtightness inspection during the conveying process of the packaging bottle 5. They can also automatically remove defective products from the packaging bottle 5 in stages. The inspection process is carried out synchronously with the conveying without stopping the machine, which will not affect the conveying efficiency. Moreover, the dual quality inspection method can accurately screen out defective products in the packaging bottle 5, effectively ensuring the pass rate of the finished product.

[0027] The conveyor 1 is equipped with a control host 3, which is used to control the opening and closing and operation status of the conveying unit and the selection unit, so as to realize the automated conveying, classification and screening of good and bad products of large and small packaging bottles 5.

[0028] Example 2: Refer to Figures 2-4 The difference between this embodiment and embodiment one is that the conveying unit is provided with a main conveyor belt 4 for conveying the packaging bottles 5, and the conveying platform 1 is provided with two sub-conveyor belts 7 that cooperate with the main conveyor belt 4 for conveying large and small packaging bottles 5 respectively.

[0029] The main conveyor belt 4 is set on the conveyor table 1 to realize the synchronous conveying of large and small packaging bottles 5. The main conveyor belt 4 and the two sub-conveyor belts 7 are all equipped with baffles 11 to prevent the packaging bottles 5 from falling. The main conveyor belt 4 and the two sub-conveyor belts 7 are both commonly used conveying equipment in the prior art. They all use industry-standard and mature conveyor models and rely on conventional drive structures to complete the continuous and stable conveying of health product packaging bottles 5. They can adapt to the uniform feeding requirements of bottle assembly lines. The above-mentioned conveyor belt related transmission, frame and other structures are all existing known technologies, and will not be described in detail here.

[0030] In a further embodiment, the main conveyor belt 4 is provided with a sorting component for sorting large and small packaging bottles 5. The sorting component includes a classification baffle 12 provided on the baffle plate 11 for blocking the main conveyor belt 4. The classification baffle 12 is provided with a small bottle inlet 15 and a large bottle inlet 16. The small packaging bottles 5 enter the rear sub-conveyor belt 7 for conveying small packaging bottles 5 after being limited and guided by the small bottle inlet 15. The large packaging bottles 5 enter the rear sub-conveyor belt 7 for conveying large packaging bottles 5 after being limited and guided by the large bottle inlet 16. When conveying the packaging bottles 5, the large and small packaging bottles 5 to be conveyed are first fed into the main conveyor belt 4 in sequence through the upstream processing equipment, and the main conveyor belt 4 is started to smoothly convey the large and small packaging bottles 5.

[0031] Multiple auxiliary rollers 17 are rotatably mounted on the sorting baffle 12 to assist the movement of the large packaging bottles 5. When the large and small packaging bottles 5 are conveyed to contact the sorting baffle 12, the small packaging bottles 5 will directly enter the subsequent sub-conveyor belt 7 through the small bottle inlet 15 on the sorting baffle 12. However, the large packaging bottles 5 are too large to pass through the small bottle inlet 15 and will be blocked by the sorting baffle 12. At this time, the large packaging bottles 5 will move obliquely along the outer guide of the sorting baffle 12 under the cooperation of the main conveyor belt 4 and the auxiliary rollers 17, and automatically enter the corresponding subsequent sub-conveyor belt 7 when they move to the large bottle inlet 16, thus completing the automatic sorting and conveying of the large and small packaging bottles 5.

[0032] The setting of multiple auxiliary rollers 17 can effectively reduce the friction between the packaging bottle 5 and the sorting baffle 12, prevent the packaging bottle 5 from getting stuck or scratched, and enable large and small packaging bottles 5 to automatically separate based on their size differences, accurately completing the grading and sorting.

[0033] An adjusting baffle is rotatably installed on the baffle plate 11 at the front end of the main conveyor belt 4 to adjust the conveying angle of large and small packaging bottles 5. During conveying, the angle of the adjusting baffle can be flexibly deflected and adjusted, thereby adjusting the guiding angle of the large and small packaging bottles 5, tidying up the randomly arranged packaging bottles 5, so that the bottles are straightened and orderly facing the feed inlet of the sorting baffle 12, and so that the large and small packaging bottles 5 can be accurately aligned with the small bottle feed inlet 15 during conveying, so that the small packaging bottles 5 can directly enter the sub-conveyor belt 7 through the small bottle feed inlet 15 without colliding with the sorting baffle 12, thus improving the conveying efficiency.

[0034] The conveyor table 1 is equipped with two output frames 10 that cooperate with the corresponding sub-conveyor belts 7 for conveying qualified packaging bottles 5. After the large and small packaging bottles 5 conveyed on the two sub-conveyor belts 7 are detected and screened by the optimization unit, they are automatically conveyed to the corresponding subsequent processing steps through the corresponding output frames 10, thus completing the automatic conveying and export of large and small packaging bottles 5.

[0035] Example 3: Refer to Figure 1 as well as Figures 5-17The difference between this embodiment and embodiment two is that the preferred unit includes an appearance inspection component, an airtightness inspection component, and a rejection component. The appearance inspection component is equipped with an appearance inspection instrument 26 for detecting appearance defects of the packaging bottle 5. The airtightness inspection component is equipped with multiple air extraction pipes 34 for extracting air from the packaging bottle 5, and each air extraction pipe 34 is equipped with an air pressure detector 20 for detecting the change in air pressure inside the packaging bottle 5. The rejection component is equipped with an air blowing box 24 for blowing out defective packaging bottles 5.

[0036] The preferred unit includes a detection frame 6 fixedly installed on the conveyor table 1, and the detection frame 6 is fitted onto the upper part of the sub-conveyor belt 7.

[0037] The appearance inspection component includes two conveyor side plates 22 fixedly installed inside the inspection frame 6. Each of the two conveyor side plates 22 is rotatably mounted with multiple rotating auxiliary wheels 25 for driving the packaging bottle 5 to rotate. When the packaging bottle 5 comes into contact with the conveyor side plate 22, it will move to the middle position of the conveyor belt 7 after being regulated by the two conveyor side plates 22. At the middle position, it passes between the two conveyor side plates 22. When the packaging bottle 5 is conveyed, it will come into contact with multiple rotating auxiliary wheels 25 on the two conveyor side plates 22. That is, it will rotate under the friction of the multiple rotating auxiliary wheels 25, thereby realizing that the packaging bottle 5 is conveyed and rotated at the same time. Multiple appearance inspection instruments 26 are respectively installed on the two corresponding conveying side plates 22. They are used to observe the external defects of the packaging bottle 5 during the rotation and conveying process. During the rotation and conveying process, the packaging bottle 5 will pass through multiple appearance inspection instruments 26. At this time, the multiple appearance inspection instruments 26 will perform a full-range scan of the body of the packaging bottle 5, and conduct a thorough inspection of the appearance defects such as cracks and burrs on the outside of the packaging bottle 5. The defective products with appearance defects in the packaging bottle 5 will be detected and marked in real time, thereby completing the appearance defect detection of the packaging bottle 5 during the conveying process.

[0038] In a further embodiment, the airtightness testing component includes an equipment box 18 fixedly mounted on a conveyor table 1. A servo motor 19 is fixedly mounted on the equipment box 18, and a drive roller 29 for outputting power is fixedly mounted on the drive end of the servo motor 19. An active helical gear 41 is fixedly mounted on the drive roller 29. A linkage roller 27 is rotatably mounted on the equipment box 18, and a driven helical gear 42 that meshes with the active helical gear 41 is fixedly mounted on the linkage roller 27. When the servo motor 19 starts, it drives the drive roller 29 to rotate. The rotation of the drive roller 29 drives the active helical gear 41 on it to rotate, which in turn drives the driven helical gear 42 that cooperates with it to rotate. When the driven helical gear 42 rotates, it drives the linkage roller 27 to rotate synchronously, thus completing the transmission of the power output of the servo motor 19.

[0039] A vacuum pump 23 is slidably mounted on the detection frame 6, and a lifting mechanism is installed between the vacuum pump 23 and the linkage roller 27. The lifting mechanism includes a synchronous bending rod 32 fixedly mounted on the side of the vacuum pump 23, a reciprocating screw 2 fixedly mounted on the linkage roller 27, and a ball nut disc 30 that cooperates with the reciprocating screw 2 fixedly mounted on the synchronous bending rod 32. When the linkage roller 27 rotates, it will drive the reciprocating screw 2 on it to rotate synchronously. When the reciprocating screw 2 rotates, it will drive the ball nut disc 30 that cooperates with it to move back and forth. In turn, the synchronous bending rod 32 drives the vacuum pump 23 to move back and forth within the detection frame 6.

[0040] The cooperation between the reciprocating screw 2 and the ball nut disc 30 is existing technology. The specific principle is as follows: the reciprocating screw 2 is a type of three-dimensional cam pair. Its specific structure consists of two threaded grooves with the same pitch and opposite directions of rotation. The two ends of the screw are connected by a transition curve. By rotating the screw, the side of the helical groove pushes the balls located in the helical groove of the ball nut disc 30 to make axial reciprocating motion. The reciprocating motion of the balls will drive the ball nut disc 30 to move back and forth. That is, when the reciprocating screw 2 rotates in one direction, it can drive the ball nut disc 30 to make it move back and forth linearly on the reciprocating screw 2. This part is existing technology and will not be described in detail here.

[0041] Multiple suction cylinders 14 are fixedly connected to the vacuum pump 23. Multiple rubber sealing rings 13 for sealing the bottle mouth of the packaging bottle 5 are fixedly installed on each suction cylinder 14. Multiple suction pipes 34 are fixedly connected to the lower part of the corresponding suction cylinder 14. When multiple packaging bottles 5 are conveyed on the conveyor belt 7 to the lower part of multiple suction cylinders 14, the vacuum pump 23 moves down and drives the multiple suction cylinders 14 to move down. When the suction cylinders 14 move down, they drive the rubber sealing rings 13 on them to move down and lock onto the bottle mouth of the packaging bottle 5, so that the packaging bottle 5 can be internally sealed by the rubber sealing rings 13.

[0042] The rubber sealing ring 13 flexibly presses against the mouth of the packaging bottle 5 without rigidly pressing the bottle body. This allows the conveyor belt 7 to continue slowly conveying the packaging bottle 5 during the airtightness test without being affected by it. When the previous batch of packaging bottles 5 is pressed down and stops moving for testing, the next batch continues to be slowly conveyed forward with the conveyor belt 7 until the previous batch of packaging bottles 5 has been tested. The next batch of packaging bottles 5 will not move into the airtightness test component, so that the airtightness test will not affect the normal conveying of subsequent packaging bottles 5. The conveyor belt 7 does not need to be stopped during the airtightness test, which effectively improves the conveying efficiency of the packaging bottle 5.

[0043] When the rubber sealing ring 13 has finished sealing the packaging bottle 5, the suction pipe 34 at the bottom of the suction cylinder 14 will be inserted into the inside of the packaging bottle 5, and the vacuum pump 23 can be started to pump air from the inside of the packaging bottle 5. The pumping time is set to 0.5 seconds. After the pumping is completed, the air pressure detector 20 is started to detect the air pressure inside the packaging bottle 5 at this time and record the detection data. After the air is evacuated, wait another 0.5 seconds, then start the air pressure detector 20 to test the internal air pressure of the packaging bottle 5, record the test data and compare it with the previous test data. If the test results are not significantly different, the packaging bottle 5 is determined to be a qualified airtight product. If the test results are significantly different, it means that there is a gap in the body of the packaging bottle 5, and external air enters the interior of the packaging bottle 5. In this case, the packaging bottle 5 is determined to be a non-qualified airtight product, and the non-qualified packaging bottle 5 is marked, thus completing the airtightness test of the packaging bottle 5 and marking the packaging bottle 5 with insufficient airtightness.

[0044] After the airtightness test is completed, the vacuum pump 23 moves upward under the drive of the lifting mechanism, which drives the suction pipe 34 and the rubber sealing ring 13 away from the packaging bottle 5, releasing the limit on the packaging bottle 5. At this time, the packaging bottle 5 will continue to be conveyed forward under the action of the conveyor belt 7. When the next batch of packaging bottles 5 is conveyed to the lower part of the vacuum pump 23, the vacuum pump 23 continues to move downward for another test.

[0045] The up-and-down movement time of the lifting mechanism is consistent with the forward and backward movement time of the packaging bottles 5 on the conveyor belt 7. The conveying speed and lifting speed can be adjusted by controlling the host machine 3 according to the actual conveying situation.

[0046] In a further embodiment, the rejection assembly includes a compression box 28 fixedly installed inside the equipment box 18, and the compression box 28 is rotatably connected to the drive roller 29. A rotating wheel 36 located inside the compression box 28 is fixedly installed on the drive roller 29. An air collecting plate 37 is slidably installed inside the compression box 28. A traction shaft 40 is fixedly installed on the lower part of the air collecting plate 37. An eccentric shaft 38 is fixedly installed on the rotating wheel 36, and a traction rod 39 is rotatably connected between the eccentric shaft 38 and the traction shaft 40. When the servo motor 19 starts and drives the drive roller 29 to rotate, the rotation of the drive roller 29 will drive the rotating wheel 36 in the compression box 28 to rotate. When the rotating wheel 36 rotates, it will drive the eccentric shaft 38 on it to rotate circumferentially. Since the two ends of the traction rod 39 are respectively rotatably connected between the eccentric shaft 38 and the traction shaft 40, when the eccentric shaft 38 rotates, it will pull the traction shaft 40 to move up and down reciprocally through the traction rod 39, thereby converting the circumferential motion into a linear push-pull action, which will drive the air collecting plate 37 to slide vertically back and forth in the compression box 28.

[0047] An air guiding mechanism is installed inside the compression box 28. The air guiding mechanism includes a one-way air intake pipe 33 fixedly connected to the compression box 28 for air intake, a one-way exhaust pipe 35 fixedly connected to the compression box 28 for exhaust, an air storage tank 21 for storing compressed air fixedly connected to the one-way exhaust pipe 35, and an air blowing box 24 fixedly connected to the air storage tank 21. When the gas collecting plate 37 moves down, the volume of the upper part of the gas collecting plate 37 in the compression box 28 increases, generating negative pressure. At this time, outside air enters the compression box 28 through the one-way suction pipe 33. When the gas collecting plate 37 moves up, the volume of the box decreases, which will compress the gas. At this time, the gas collecting plate 37 will compress the air and inject it into the gas storage tank 21 through the one-way exhaust pipe 35 for storage. This cycle generates high-pressure compressed gas in the gas storage tank 21.

[0048] A distribution pipe 31 is fixedly connected to the one-way exhaust pipe 35, and another air storage tank 21 is fixedly connected to the distribution pipe 31. An air blowing box 24 is also fixedly connected to the other air storage tank 21. Both air blowing boxes 24 are set on the detection frame 6. Some of the air in the one-way exhaust pipe 35 will enter the rear air storage tank 21 through the distribution pipe 31 and be stored in the rear air storage tank 21.

[0049] The front air-blowing box 24 is located at the rear of the appearance inspection component, and the rear air-blowing box 24 is located at the rear of the air tightness inspection component. The conveyor table 1 and the inspection frame 6 are respectively equipped with two corresponding air-blowing boxes 24, namely, the first impurity removal frame 8 and the second impurity removal frame 9. After the defective packaging bottle 5 has been inspected and marked, it will continue to be conveyed on the conveyor belt 7. When it is conveyed to the side of the front air blowing box 24, the front air blowing box 24 will recognize the mark and open to transmit high-pressure airflow from the front air storage tank 21. The high-pressure airflow is blown onto the defective packaging bottle 5, thereby blowing the defective packaging bottle 5 away from the conveyor belt 7 and onto the corresponding impurity removal frame 8, thus completing the automatic blowing away and rejection of the defective packaging bottle 5.

[0050] After the defective packaging bottle 5 has been tested for air tightness and marked, it will continue to be conveyed on the conveyor belt 7. When it is conveyed to the side of the rear air blowing box 24, the rear air blowing box 24 will recognize the mark and open to transmit high-pressure airflow from the rear air storage tank 21. The high-pressure airflow is blown onto the defective packaging bottle 5 with insufficient air tightness, thereby blowing the defective packaging bottle 5 away from the conveyor belt 7 and onto the corresponding impurity removal frame 9, thus completing the automatic blowing away and rejection of the airtight defective packaging bottle 5. The packaging bottles 5 that remain on the sub-conveyor belt 7 after being removed by the two air-blowing boxes 24 are considered to be intact and qualified products. They will continue to be conveyed on the sub-conveyor belt 7 and eventually be exported through the corresponding output box 10.

[0051] The working principle of this conveying device is as follows: When conveying the packaging bottles 5, the large and small packaging bottles 5 to be conveyed are first fed into the main conveyor belt 4 in sequence through the upstream processing equipment. The main conveyor belt 4 is started to smoothly convey the large and small packaging bottles 5. After being screened by the sorting components, the large and small packaging bottles 5 will enter the corresponding sub-conveyor belts 7 for independent conveying, realizing the automatic sorting of the large and small packaging bottles 5.

[0052] When the packaging bottle 5 passes through the appearance inspection component, multiple appearance inspection instruments 26 scan the bottle body of the packaging bottle 5 from all angles, and conduct a thorough inspection of appearance defects such as cracks and burrs on the outside of the packaging bottle 5. The defective products with appearance defects in the packaging bottle 5 are detected in real time and marked. After the defective packaging bottle 5 has been inspected and marked, it will continue to be conveyed on the conveyor belt 7. When it is conveyed to the side of the front air blowing box 24, the front air blowing box 24 will recognize the mark and open to transmit high-pressure airflow from the front air storage tank 21. The high-pressure airflow is blown onto the defective packaging bottle 5, blowing the defective packaging bottle 5 away from the conveyor belt 7 and onto the corresponding waste removal frame 8, thus completing the automatic blowing away and rejection of the defective packaging bottle 5.

[0053] After rejection, the packaging bottles 5 that pass the appearance test continue to be conveyed on the conveyor belt 7 and enter the air tightness testing component. The vacuum pump 23 will move downward under the drive of the lifting mechanism and drive multiple suction cylinders 14 to move downward, so that the suction pipe 34 at the bottom of the suction cylinder 14 is inserted into the inside of the packaging bottle 5, and the rubber sealing ring 13 moves downward and locks onto the bottle mouth of the packaging bottle 5, thus sealing the packaging bottle 5 internally through the rubber sealing ring 13. Then start the vacuum pump 23 to pump air from the inside of the packaging bottle 5 through the pump pipe 34 and the suction cylinder 14. The pumping time is set to 0.5 seconds. After the pumping is completed, start the air pressure detector 20 to detect the air pressure inside the packaging bottle 5 at this time and record the detection data. After the air is evacuated, wait another 0.5 seconds, then start the air pressure detector 20 to test the internal air pressure of the packaging bottle 5, record the test data and compare it with the previous test data. If the test results are not significantly different, the packaging bottle 5 is determined to be a qualified airtight product. If the test results are significantly different, it means that there is a gap in the body of the packaging bottle 5, and external air enters the interior of the packaging bottle 5. In this case, the packaging bottle 5 is determined to be a non-qualified airtight product, and the non-qualified packaging bottle 5 is marked to complete the airtightness test of the packaging bottle 5.

[0054] After the defective packaging bottle 5 has been tested for air tightness and marked, it will continue to be conveyed on the conveyor belt 7. When it is conveyed to the side of the rear air blowing box 24, the rear air blowing box 24 will recognize the mark and open to transmit high-pressure airflow from the rear air storage tank 21. The high-pressure airflow is blown onto the defective packaging bottle 5 with insufficient air tightness, blowing the defective packaging bottle 5 away from the conveyor belt 7 and onto the corresponding impurity removal frame 9, thus completing the automatic blowing away and rejection of the airtight defective packaging bottle 5. After the defective packaging bottle 5 is removed, the packaging bottle 5 remaining on the sub-conveyor belt 7 is the intact qualified product, which will continue to be conveyed on the sub-conveyor belt 7 and finally exported through the corresponding output box 10, completing all the conveying, sorting and inspection optimization processes of the packaging bottle 5.

[0055] This invention also provides a graded conveying method for processing health product packaging bottles, and a graded conveying device for the above-mentioned packaging bottle processing, comprising the following steps: S1. Place multiple large and small packaging bottles 5 to be transported on the main conveyor belt 4 for transport, and after being sorted by the sorting component, the large and small packaging bottles 5 enter the corresponding sub-conveyor belts 7 for continued transport. S2, Packaging bottle 5 is continuously conveyed on the conveyor belt 7 and enters the preferred unit; S3. When the packaging bottle 5 passes through the appearance inspection component, the appearance inspection instrument 26 inside it will detect the appearance defects of the packaging bottle 5. After the defective product is detected, the high-pressure airflow is blown out by the air box 24 in the rejection component to blow the defective product away from the conveyor belt 7, thus completing the rejection of the packaging bottle 5 with appearance defects. S4. Activate the air tightness detection component to perform an air tightness test on the packaging bottle 5. Extract the air inside the packaging bottle 5 through the air extraction tube 34, and monitor the change in air pressure inside the packaging bottle 5 through the air pressure detector 20 after an interval of 0.5 seconds, thereby detecting defective packaging bottles 5 with poor air tightness. S5. Defective airtight products detected are blown away by the rejection component, while qualified packaging bottles 5 continue to be conveyed and collected by the conveyor belt 7.

[0056] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A graded conveying device based on the processing of health product packaging bottles, comprising multiple large and small packaging bottles (5) to be conveyed, arranged on a conveyor table (1), characterized in that, Also includes: The conveying unit is set on the conveying platform (1), which is equipped with a main conveyor belt (4) for conveying the packaging bottles (5), and the conveying platform (1) is equipped with two sub-conveyor belts (7) that cooperate with the main conveyor belt (4) for conveying large and small packaging bottles (5) respectively. The main conveyor belt (4) is equipped with a sorting component for sorting large and small packaging bottles (5). The conveyor table (1) is equipped with two preferred units that cooperate with the corresponding sub-conveyor belts (7); The preferred unit includes an appearance inspection component, an air tightness inspection component, and a rejection component. The appearance inspection component is equipped with an appearance inspection instrument (26) for detecting appearance defects of the packaging bottle (5). The air tightness inspection component is equipped with multiple air extraction pipes (34) for extracting air from the packaging bottle (5), and each air extraction pipe (34) is equipped with an air pressure detector (20) for detecting the change in air pressure inside the packaging bottle (5). The rejection component is equipped with an air blowing box (24) for blowing out defective packaging bottles (5).

2. The graded conveying device based on the processing of health product packaging bottles according to claim 1, characterized in that, The conveyor (1) is equipped with a control host (3), which is used to control the opening and closing and operation status of the conveying unit and the selection unit, so as to realize the automated conveying, classification and screening of large and small packaging bottles (5).

3. A graded conveying device based on the processing of health product packaging bottles according to claim 1, characterized in that, The main conveyor belt (4) is set on the conveyor table (1) to realize the synchronous conveying of large and small packaging bottles (5). The main conveyor belt (4) and the two sub-conveyor belts (7) are all equipped with baffles (11) to prevent the packaging bottles (5) from falling. The conveyor table (1) is equipped with two output frames (10) that cooperate with the corresponding sub-conveyor belts (7) to convey qualified packaging bottles (5).

4. A graded conveying device based on the processing of health product packaging bottles according to claim 3, characterized in that, The sorting assembly includes a sorting baffle (12) set on the baffle plate (11) for blocking the main conveyor belt (4). The sorting baffle (12) has a small bottle inlet (15) and a large bottle inlet (16). Multiple auxiliary rollers (17) for assisting the movement of large packaging bottles (5) are rotatably installed on the sorting baffle (12). The small packaging bottle (5) enters the rear conveyor belt (7) for conveying the small packaging bottle (5) after being limited and guided by the small bottle inlet (15). The large packaging bottle (5) enters the rear conveyor belt (7) for conveying the large packaging bottle (5) after being limited and guided by the large bottle inlet (16). The baffle plate (11) is rotatably installed at the front end of the main conveyor belt (4) for adjusting the conveying angle of the large and small packaging bottles (5).

5. A graded conveying device based on the processing of health product packaging bottles according to claim 4, characterized in that, The preferred unit includes a detection frame (6) fixedly installed on the conveyor table (1), and the detection frame (6) is sleeved on the upper part of the sub-conveyor belt (7); The appearance inspection component includes two conveying side plates (22) fixedly installed in the inspection frame (6). Multiple rotating auxiliary wheels (25) for driving the packaging bottle (5) to rotate are rotatably installed on the two conveying side plates (22). Multiple appearance inspection instruments (26) are respectively set on the corresponding two conveying side plates (22) for observing the external defects of the packaging bottle (5) during the rotation and conveying process.

6. A graded conveying device based on the processing of health product packaging bottles according to claim 5, characterized in that, The airtightness testing component includes an equipment box (18) fixedly installed on a conveyor table (1). A servo motor (19) is fixedly installed on the equipment box (18), and a drive roller (29) for outputting power is fixedly installed on the drive end of the servo motor (19). An active helical gear (41) is fixedly installed on the drive roller (29). A linkage roller (27) is rotatably installed on the equipment box (18), and a driven helical gear (42) meshing with the active helical gear (41) is fixedly installed on the linkage roller (27). A vacuum pump (23) is slidably installed on the detection frame (6), and a lifting mechanism is installed between the vacuum pump (23) and the linkage roller (27). Multiple suction cylinders (14) are fixedly connected to the vacuum pump (23). Multiple rubber sealing rings (13) for sealing the bottle mouth of the packaging bottle (5) are fixedly installed on each suction cylinder (14). Multiple suction pipes (34) are fixedly connected to the lower part of the corresponding suction cylinder (14).

7. A graded conveying device based on the processing of health product packaging bottles according to claim 6, characterized in that, The lifting mechanism includes a synchronous bending rod (32) fixedly installed on the side of the vacuum pump (23), a reciprocating screw (2) fixedly installed on the linkage roller (27), and a ball nut disc (30) that cooperates with the reciprocating screw (2) fixedly installed on the synchronous bending rod (32).

8. A graded conveying device based on the processing of health product packaging bottles according to claim 7, characterized in that, The rejection assembly includes a compression box (28) fixedly installed in the equipment box (18), and the compression box (28) is rotatably connected to the drive roller (29). A rotating wheel (36) located in the compression box (28) is fixedly installed on the drive roller (29). An air collecting plate (37) is slidably installed in the compression box (28). A traction shaft (40) is fixedly installed on the lower part of the air collecting plate (37). An eccentric shaft (38) is fixedly installed on the rotating wheel (36), and a traction rod (39) is rotatably connected between the eccentric shaft (38) and the traction shaft (40). An air guiding mechanism is installed in the compression box (28).

9. A graded conveying device based on the processing of health product packaging bottles according to claim 8, characterized in that, The air guiding mechanism includes a one-way air intake pipe (33) fixedly connected to the compression box (28) for air intake, a one-way exhaust pipe (35) fixedly connected to the compression box (28) for exhaust, an air storage tank (21) for storing compressed air fixedly connected to the one-way exhaust pipe (35), and an air blowing box (24) fixedly connected to the air storage tank (21). The one-way exhaust pipe (35) is fixedly connected to a gas distribution pipe (31), and the gas distribution pipe (31) is fixedly connected to another gas storage tank (21). The other gas storage tank (21) is also fixedly connected to a blower box (24). Both blower boxes (24) are set on the detection frame (6). The front blower box (24) is located on the rear side of the appearance detection component, and the rear blower box (24) is located on the rear side of the airtightness detection component. The conveying table (1) and the detection frame (6) are respectively equipped with a first impurity removal frame (8) and a second impurity removal frame (9) that cooperate with the two corresponding blower boxes (24).

10. A graded conveying method for processing health product packaging bottles, used in the graded conveying device for processing packaging bottles as described in any one of claims 1-9, characterized in that, Includes the following steps: S1. Place multiple large and small packaging bottles (5) to be transported on the main conveyor belt (4) for transport, and after being sorted by the sorting component, the large and small packaging bottles (5) enter the corresponding sub-conveyor belts (7) for continued transport. S2, The packaging bottle (5) is continuously conveyed on the conveyor belt (7) and enters the preferred unit; S3. When the packaging bottle (5) passes through the appearance inspection component, the appearance inspection instrument (26) inspects the appearance defects of the packaging bottle (5). After the defective product is detected, the high-pressure airflow is blown out by the air box (24) in the rejection component to blow the defective product away from the conveyor belt (7) and complete the rejection of the packaging bottle (5) with appearance defects. S4. Start the air tightness detection component to perform air tightness detection on the packaging bottle (5). Extract the air inside the packaging bottle (5) through the air extraction tube (34), and monitor the change in air pressure inside the packaging bottle (5) through the air pressure detector (20) after an interval of 0.5 seconds, thereby detecting defective packaging bottles (5) with poor air tightness. S5. The airtight defective products detected are blown away by the rejection component, and the qualified packaging bottles (5) continue to be transported and collected by the conveyor belt (7).

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