Assembly line rapid detection system and method for low-temperature-resistant plastic barrier bottle
By designing a rapid testing system for conveying, refrigeration, and testing mechanisms, the problem of testing low-temperature resistant plastic barrier bottles under low-temperature conditions has been solved. This system achieves efficient conveying, low-temperature processing, and automated screening, ensuring testing efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-08
- Publication Date
- 2026-04-03
AI Technical Summary
Existing equipment is insufficient for effectively testing the structural stability and barrier function of low-temperature resistant plastic barrier bottles under low-temperature conditions, and the handling of defective products is inconvenient, affecting testing efficiency and safety.
A rapid inspection system for production lines, including conveying, refrigeration, and inspection mechanisms, was designed. Bottles are conveyed by a motor-driven transmission system and subjected to low-temperature treatment by a refrigeration unit. Detectors are used to screen good and defective products, achieving automated separation.
It enables efficient transportation, low-temperature processing, and automated screening of low-temperature resistant plastic bottles, ensuring testing efficiency and safety, and preventing container failure and deterioration of contents caused by low temperatures.
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Figure CN121776137A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of materials testing technology, and in particular relates to a rapid testing system and method for low-temperature resistant plastic barrier bottles. Background Technology
[0002] Low-temperature resistant plastic barrier bottles are plastic packaging containers that combine low-temperature resistance and barrier properties. They are mainly used for storing contents that are sensitive to gases or small molecules such as oxygen, moisture, and carbon dioxide in low-temperature environments. They are widely used in the food, pharmaceutical, and chemical industries. Ordinary plastics are prone to embrittlement, cracking, and decreased impact resistance in low-temperature environments (such as -20℃ to -60℃). However, low-temperature resistant plastic barrier bottles, through raw material modification or structural design, can maintain good mechanical properties (toughness, impact resistance, and rupture resistance) under low-temperature conditions, meeting the needs of refrigeration, freezing, or low-temperature transportation.
[0003] Chinese patent CN115112678A discloses a rotary quality inspection system and method for biodegradable barrier bottles. This rotary quality inspection system and method, through the arrangement of a turning component and a conveying component, uses a conveyor belt and several anti-slip strips fixedly installed on its outer side to drive the bottle body along the conveyor tray frame. Simultaneously, the bottle body rotates through the cooperation of corresponding support plates and rotating shafts, ensuring that the bottle body's surface is clearly photographed and recorded when passing through the inspection module. When several rotating shafts contact the arc-shaped inner disk, the shafts can move up and down with the cooperation of the arc-shaped inner disk, thereby lifting the corresponding support plates and bottle body upwards and backwards. Simultaneously, through the cooperation of components such as the pressure belt layer, the system determines whether the bottle body has cracks or scratches during the pressure process, ensuring the equipment's inspection efficiency while improving the bottle inspection effect.
[0004] However, as shown in the above device, there are still the following shortcomings. It is unclear how the device will remove defective products after the test is completed. If it is handled manually, it will be troublesome and increase labor. At the same time, the device is difficult to perform low-temperature treatment and testing, and it is difficult to ensure the structural stability, barrier function and safety of the container under low-temperature conditions, so as to avoid problems such as deterioration and leakage of contents caused by container failure due to low temperature. Summary of the Invention
[0005] To address the shortcomings of existing technologies, this invention provides a rapid testing system and method for low-temperature resistant plastic barrier bottles on an assembly line, thus solving the aforementioned problems.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a rapid testing system for low-temperature resistant plastic barrier bottles, comprising a base, a conveying mechanism at the top of the base for conveying and outputting plastic bottles requiring low-temperature testing and for limiting their movement, the conveying mechanism comprising a connecting block fixed to the inner wall of the base, an isolation plate fixedly connected to the top of the connecting block, a motor support plate fixedly connected to the outer wall of the base, a first motor fixedly connected to the top of the motor support plate, a drive shaft fixedly connected to the bottom output end of the first motor via a coupling, and a rotating rod fixedly connected to the outer wall of the drive shaft.
[0007] Preferably, a conveyor belt is driven to the outer surface of the rotating rod one, and a rotating rod two is driven to the end of the conveyor belt away from the rotating rod one. A gear one is fixedly connected to the outer wall of the rotating rod two, and a gear two is meshed to the outer surface of the gear one. A fixing rod is fixedly connected to the inner wall of the gear two.
[0008] Preferably, a pulley is fixedly connected to the outer wall of the fixed rod, a belt is driven to the outer surface of the pulley, a second pulley is driven to the end of the belt away from the pulley, a feed baffle is fixedly connected to the outer wall of the base, and a feed ramp is fixedly connected to the outer wall of the base.
[0009] Preferably, the bottom of the isolation plate is provided with a refrigeration mechanism for low-temperature treatment of the plastic bottle and controlling the duration of low-temperature treatment. The refrigeration mechanism includes a second motor, which is fixed to the bottom of the base. The output end of the bottom of the base is fixedly connected to a second transmission shaft via a coupling. A second bevel gear is meshed with the outer surface of the second transmission shaft.
[0010] Preferably, a central rod is fixedly connected to the top of the bevel gear two, a conveyor wheel is fixedly connected to the top of the central rod, a refrigeration unit is fixedly connected to the top of the connecting block, a heat insulation curtain is fixedly connected to the inner wall of the refrigeration unit, and the top of the central rod penetrates the inner wall of the isolation plate and extends to the outside.
[0011] Preferably, the outer wall of the base is provided with a detection mechanism for detecting plastic bottles after low-temperature treatment and distinguishing between good and defective products. The detection mechanism includes a detector fixed to the outer wall of the base. A fixing frame is fixedly connected to the outer wall of the base. A cylinder is fixedly connected to the outer wall of the fixing frame. A push block is fixedly connected to the output end of the cylinder.
[0012] Preferably, a slide rail is fixedly connected to the outer wall of the fixed frame, a dust cover is fixedly connected to the outer wall of the push block, a slider is fixedly connected to the outer wall of the dust cover, the outer surface of the slider is slidably connected to the inner wall of the slide rail, and a limit plate is fixedly connected to the outer wall of the base.
[0013] Preferably, the outer wall of the base is fixedly connected to the second limiting plate, the outer surface of the dust cover is slidably connected to the inner wall of the first limiting plate, and the outer wall of the push block penetrates the inner wall of the first limiting plate and extends to the outside.
[0014] This invention also discloses a detection method for a rapid detection system for a low-temperature resistant plastic barrier bottle on an automated production line, specifically including the following steps: S1. Start the first motor to drive the transmission shaft one fixed at its output end to rotate. When the transmission shaft one rotates, the rotating rod one will also rotate. When the rotating rod one rotates, the conveyor belt will rotate. At this time, the rotating rod two located at the other end of the conveyor belt will also rotate. S2. When the rotating rod 2 rotates, the gear 1 will also rotate. At this time, the gear 2 that is meshed at the bottom of the gear 1 will also rotate. When the gear 2 rotates, the fixed rod will drive the pulley 1 to rotate. S3. The belt wound around the outer surface of pulley one will drive pulley two at the other end to rotate simultaneously. At this time, pulley two will drive another set of conveyor belts to move.
[0015] The present invention has the following beneficial effects: 1. The rapid inspection system and method for low-temperature resistant plastic barrier bottles on a production line involves starting a first motor to drive a transmission shaft fixed at its output end to rotate. When the transmission shaft rotates, a rotating rod also rotates, causing the conveyor belt to rotate. At the same time, a rotating rod at the other end of the conveyor belt also rotates. When the rotating rod rotates, a gear also rotates, and a gear meshing at the bottom of the gear also rotates. When the gear rotates, a fixed rod drives a pulley to rotate, and the belt wrapped around the outer surface of the pulley drives the pulley at the other end to rotate simultaneously. The pulley then drives another set of conveyor belts to move. The advantage is that it can transport and output plastic bottles that have not undergone low-temperature treatment, and it can also be used in conjunction with subsequent low-temperature treatment to prevent plastic bottles from accumulating and jamming, which would affect work efficiency.
[0016] 2. The rapid detection system and method for low-temperature resistant plastic barrier bottles on an assembly line involves a refrigeration unit for low-temperature treatment. A second motor is started, driving a transmission shaft fixed at its output end to rotate. When the transmission shaft rotates, a bevel gear also rotates, and a bevel gear meshing with it also rotates. As the bevel gear rotates, the central rod drives the conveyor wheel to rotate simultaneously. Plastic bottles reaching the end of the conveyor belt are engaged by the claws on the conveyor wheel, sliding on the isolation plate and undergoing low-temperature treatment inside the refrigeration unit. The low-temperature treatment lasts approximately 10-20 seconds. Its advantage is that it can perform low-temperature treatment on plastic bottles and simultaneously control the low-temperature duration in conjunction with the conveyor mechanism.
[0017] 3. The rapid inspection system and method for low-temperature resistant plastic barrier bottles on a production line uses a detector to screen plastic bottles after low-temperature treatment. When a defective product is detected, an external sensor activates a cylinder. When the cylinder is activated, a pusher moves to push out the defective plastic bottle. A slider fixed to the outer wall of the dust cover slides inside the slide rail, thereby limiting the movement of the pusher. The advantage is that it can screen plastic bottles after low-temperature treatment and remove defective products at the same time.
[0018] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the conveyor wheel structure of the present invention; Figure 3 This is a schematic diagram of the conveyor belt structure of the present invention; Figure 4 This is a schematic diagram of the smooth strip structure of the present invention; Figure 5 This is a schematic diagram of the central rod structure of the present invention; Figure 6 This is a schematic diagram of the detector structure of the present invention; Figure 7 This is a schematic diagram of the slider structure of the present invention.
[0021] The attached diagram lists the components represented by each number as follows: 1. Base; 2. Connecting block; 3. Isolation plate; 4. First motor; 5. Drive shaft one; 6. Motor support plate; 7. Rotating rod one; 8. Conveyor belt; 9. Rotating rod two; 10. Gear one; 11. Gear two; 12. Fixed rod; 13. Pulley one; 14. Feed baffle; 15. Feed inclined plate; 16. Belt; 17. Pulley two; 18. Smooth strip; 19. Second motor; 20. Drive shaft two; 21. Bevel gear one; 22. Bevel gear two; 23. Center rod; 24. Conveyor wheel; 25. Refrigeration unit; 26. Heat insulation curtain; 27. Detector; 28. Fixed frame; 29. Limiting plate one; 30. Cylinder; 31. Slide rail; 32. Slider; 33. Push block; 34. Limiting plate two; 35. Dust cover. Detailed Implementation
[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0023] This invention provides three technical solutions: Figures 1-4 The first embodiment is shown: a rapid testing system for low-temperature resistant plastic barrier bottles on an assembly line, including a base 1. A conveying mechanism is provided on the top of the base 1 for conveying and outputting plastic bottles requiring low-temperature testing and for limiting their movement. The conveying mechanism includes a connecting block 2 fixed to the inner wall of the base 1. An isolation plate 3 is fixedly connected to the top of the connecting block 2. A motor support plate 6 is fixedly connected to the outer wall of the base 1. A first motor 4 is fixedly connected to the top of the motor support plate 6. A drive shaft 5 is fixedly connected to the bottom output end of the first motor 4 through a coupling. A rotating rod 7 is fixedly connected to the outer wall of the drive shaft 5. The first motor 4 drives the drive shaft 5 to rotate, which in turn drives the rotating rod 7 to rotate synchronously, providing a power source for the conveying mechanism.
[0024] A conveyor belt 8 is driven to the outer surface of the rotating rod 7. A rotating rod 9 is driven to the end of the conveyor belt 8 away from the rotating rod 7. A gear 10 is fixedly connected to the outer wall of the rotating rod 9. A gear 11 is meshed with the outer surface of the gear 10. A fixing rod 12 is fixedly connected to the inner wall of the gear 11. Through the meshing transmission of the gear 10 and the gear 11, the rotating rod 7 and the rotating rod 9 rotate synchronously and in the same direction, thereby driving the conveyor belt 8 to run at a uniform speed, ensuring that the conveying speed of the plastic bottles is stable and controllable.
[0025] A pulley 13 is fixedly connected to the outer wall of the fixed rod 12. A belt 16 is driven to the outer surface of the pulley 13. A pulley 17 is driven to the end of the belt 16 away from the pulley 13. A feed baffle 14 is fixedly connected to the outer wall of the base 1. A feed ramp 15 is fixedly connected to the outer wall of the base 1. Through the cooperation of the feed ramp 15 and the feed baffle 14, the directional and quantitative feeding of plastic bottles is realized. With the uniform conveying of the conveyor belt 8, the continuity of the feeding process of the production line is ensured.
[0026] Figures 2-5The second embodiment is shown. The main difference from the first embodiment is that a refrigeration mechanism is provided at the bottom of the isolation plate 3 for low-temperature treatment of the plastic bottle and controlling the duration of low temperature. The refrigeration mechanism includes a second motor 19, which is fixed to the bottom of the base 1. The bottom output end of the base 1 is fixedly connected to a second transmission shaft 20 through a coupling. A second bevel gear 22 is meshed on the outer surface of the second transmission shaft 20. The second motor 19 drives the second transmission shaft 20 to rotate. By utilizing the reversing transmission characteristics of the second bevel gear 22, the rotational power in the horizontal direction is converted into power output in the vertical direction.
[0027] A central rod 23 is fixedly connected to the top of bevel gear 22, and a conveyor wheel 24 is fixedly connected to the top of the central rod 23. A refrigeration unit 25 is fixedly attached to the top of the connecting block 2, and a heat insulation curtain 26 is fixedly connected to the inner wall of the refrigeration unit 25. The top of the central rod 23 penetrates the inner wall of the isolation plate 3 and extends to the outside. By slowly rotating the conveyor wheel 24, the plastic bottle is driven to pass through the low-temperature zone formed by the refrigeration unit 25 at a uniform speed. Combined with the heat insulation effect of the heat insulation curtain 26, standardized low-temperature treatment of the plastic bottle is achieved.
[0028] Figures 6-7 The second embodiment is shown. The main difference from the first embodiment is that a detection mechanism is provided on the outer wall of the base 1 for detecting the plastic bottles after low-temperature treatment and distinguishing between good and defective products. The detection mechanism includes a detector 27, which is fixed to the outer wall of the base 1. A fixing frame 28 is fixedly connected to the outer wall of the base 1. A cylinder 30 is fixedly connected to the outer wall of the fixing frame 28. A push block 33 is fixedly connected to the output end of the cylinder 30. The detector 27 performs all-round detection on the plastic bottles after low-temperature treatment. When a defective product is detected, a signal is sent to the cylinder 30 to drive the push block 33 to separate the defective product.
[0029] The outer wall of the fixed frame 28 is fixedly connected to the slide rail 31, the outer wall of the push block 33 is fixedly connected to the dust cover 35, the outer wall of the dust cover 35 is fixedly connected to the slider 32, the outer surface of the slider 32 is slidably connected to the inner wall of the slide rail 31, and the outer wall of the base 1 is fixedly connected to the limit plate 29; the limit plate 29 is used to limit the conveying path of the plastic bottle, ensure that the position of the plastic bottle in the detection area is uniform, and improve the detection accuracy.
[0030] The outer wall of the base 1 is fixedly connected to the second limiting plate 34, the outer surface of the dust cover 35 is slidably connected to the inner wall of the first limiting plate 29, and the outer wall of the push block 33 penetrates the inner wall of the first limiting plate 29 and extends to the outside.
[0031] By using the limiting guides of limit plate 29 and limit plate 34, combined with the precise pushing of push block 33, efficient separation of good and bad products is achieved, ensuring the automation and intelligence of the production line inspection process.
[0032] This invention also discloses a detection method for a rapid detection system for low-temperature plastic barrier bottles on an automated production line, specifically including the following steps: The first motor 4 is started to drive the transmission shaft 5 fixed at its output end to rotate. When the transmission shaft 5 rotates, the rotating rod 7 fixed on its outer wall will also rotate. When the rotating rod 7 rotates, the conveyor belt 8 wrapped on its outer surface will rotate. At this time, the rotating rod 9 at the other end of the conveyor belt 8 will also rotate. When the rotating rod 9 rotates, the gear 10 fixed on its outer wall will also rotate. At this time, the gear 11 meshing at the bottom of the gear 10 will also rotate. When the gear 11 rotates, the fixed rod 12 fixed on its inner wall will drive the pulley 13 to rotate. At this time, the belt 16 wrapped on the outer surface of the pulley 13 will drive the pulley 17 at the other end to rotate simultaneously. At this time, the pulley 17 will drive another set of conveyor belts to move. Next, the refrigeration unit 25 performs low-temperature treatment. The second motor 19 is started to drive the transmission shaft 20 fixed at its output end to rotate. When the transmission shaft 20 rotates, the bevel gear 21 fixed on its outer wall will also rotate. At this time, the bevel gear 22 meshing with the bevel gear 21 will also rotate. When the bevel gear 22 rotates, the central rod 23 fixed at its top will drive the conveyor wheel 24 fixed at the top of the central rod 23 to rotate at the same time. The plastic bottle that reaches the end of the conveyor belt 8 will be caught by the claws on the conveyor wheel 24, so that it slides on the isolation plate 3 and is subjected to low-temperature treatment inside the refrigeration unit 25. The duration of the low-temperature treatment is about 10-20 seconds. Finally, the plastic bottles after low-temperature treatment are screened by detector 27. When a defective product is detected, the cylinder 30 is activated by an external sensor. When the cylinder 30 is activated, the push block 33 fixed at its output end moves to push out the defective plastic bottle. The slider 32 fixed on the outer wall of the dust cover 35 slides inside the slide rail 31, thereby limiting the movement of the push block 33.
[0033] Furthermore, all content not described in detail in this specification is existing technology known to those skilled in the art, and the model parameters of each electrical component are not specifically limited; conventional equipment can be used.
[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0035] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A rapid testing system for low-temperature resistant plastic barrier bottles, comprising a base (1), characterized in that: The base (1) is provided with a conveying mechanism on its top, which is used to convey and output plastic bottles that require low-temperature testing and to limit their movement; The conveying mechanism includes a connecting block (2) fixed to the inner wall of the base (1). A partition plate (3) is fixedly connected to the top of the connecting block (2). A motor support plate (6) is fixedly connected to the outer wall of the base (1). A first motor (4) is fixedly connected to the top of the motor support plate (6). A transmission shaft (5) is fixedly connected to the bottom output end of the first motor (4) through a coupling. A rotating rod (7) is fixedly connected to the outer wall of the transmission shaft (5).
2. The automated rapid testing system for low-temperature resistant plastic barrier bottles according to claim 1, characterized in that, The outer surface of the rotating rod (7) is connected to a conveyor belt (8), and the end of the conveyor belt (8) away from the rotating rod (7) is connected to a rotating rod (9). The outer wall of the rotating rod (9) is fixedly connected to a gear (10), the outer surface of the gear (10) is meshed with a gear (11), and the inner wall of the gear (11) is fixedly connected to a fixing rod (12).
3. The rapid testing system for low-temperature resistant plastic barrier bottles according to claim 2, characterized in that, The outer wall of the fixed rod (12) is fixedly connected to a pulley (13), the outer surface of the pulley (13) is connected to a belt (16), the end of the belt (16) away from the pulley (13) is connected to a pulley (17), the outer wall of the base (1) is fixedly connected to a feed baffle (14), and the outer wall of the base (1) is fixedly connected to a feed ramp (15).
4. The automated rapid testing system for low-temperature resistant plastic barrier bottles according to claim 1, characterized in that, The bottom of the isolation plate (3) is provided with a refrigeration mechanism for low-temperature treatment of plastic bottles and control of the low-temperature duration. The refrigeration mechanism includes a second motor (19) fixed to the bottom of the base (1). The bottom output end of the base (1) is fixedly connected to a second transmission shaft (20) via a coupling. The outer surface of the second transmission shaft (20) is meshed with a second bevel gear (22).
5. The rapid testing system for low-temperature resistant plastic barrier bottles according to claim 4, characterized in that, The top of the bevel gear (22) is fixedly connected to a central rod (23), the top of the central rod (23) is fixedly connected to a conveyor wheel (24), the top of the connecting block (2) is fixedly connected to a refrigeration unit (25), the inner wall of the refrigeration unit (25) is fixedly connected to a heat insulation curtain (26), and the top of the central rod (23) penetrates the inner wall of the isolation plate (3) and extends to the outside.
6. The rapid testing system for low-temperature resistant plastic barrier bottles on an assembly line according to claim 1, characterized in that, The outer wall of the base (1) is provided with a detection mechanism for detecting plastic bottles after low-temperature treatment and distinguishing between good and bad products. The detection mechanism includes a detector (27) fixed to the outer wall of the base (1). A fixing frame (28) is fixedly connected to the outer wall of the base (1). A cylinder (30) is fixedly connected to the outer wall of the fixing frame (28). A push block (33) is fixedly connected to the output end of the cylinder (30).
7. The automated rapid testing system for low-temperature resistant plastic barrier bottles according to claim 6, characterized in that, The outer wall of the fixed frame (28) is fixedly connected to a slide rail (31), the outer wall of the push block (33) is fixedly connected to a dust cover (35), the outer wall of the dust cover (35) is fixedly connected to a slider (32), the outer surface of the slider (32) is slidably connected to the inner wall of the slide rail (31), and the outer wall of the base (1) is fixedly connected to a limit plate (29).
8. The automated rapid testing system for low-temperature resistant plastic barrier bottles according to claim 7, characterized in that, The outer wall of the base (1) is fixedly connected to the second limiting plate (34), the outer surface of the dust cover (35) is slidably connected to the inner wall of the first limiting plate (29), and the outer wall of the push block (33) penetrates the inner wall of the first limiting plate (29) and extends to the outside.
9. The detection method of the automated rapid detection system for low-temperature resistant plastic barrier bottles according to claim 3, characterized in that, Specifically, the following steps are included: S1. Start the first motor (4) to drive the transmission shaft (5) fixed at its output end to rotate. When the transmission shaft (5) rotates, the rotating rod (7) will also rotate. When the rotating rod (7) rotates, the conveyor belt (8) will rotate. At this time, the rotating rod (9) at the other end of the conveyor belt (8) will also rotate. S2. When the rotating rod 2 (9) rotates, the gear 1 (10) will also rotate. At this time, the gear 2 (11) meshing at the bottom of the gear 1 (10) will also rotate. When the gear 2 (11) rotates, the fixed rod (12) will drive the pulley 1 (13) to rotate. S3. The belt (16) wrapped around the outer surface of pulley one (13) will drive pulley two (17) at the other end to rotate simultaneously. At this time, pulley two (17) will drive another set of conveyor belts to move.
Citation Information
Patent Citations
Rotating disc type quality detection system and method for biodegradable barrier bottle
CN115112678A