Glass bottle blow molding apparatus with openable and closable micro-hole exhaust structure and method thereof

Abstract

The application belongs to the technical field of glass product forming equipment, and particularly relates to a glass bottle blow molding device with an openable and closable micro-hole exhaust structure, which comprises a bottle blowing machine, the side of the bottle blowing machine is connected with a first mold, the bottle blowing machine is connected with a movable seat in an extending and retracting mode, the side of the movable seat is connected with a second mold which is used in cooperation with the first mold, and the bottle blowing machine is provided with a blow molding mechanism above the first mold and the second mold; in the application, the pressure sensor is used for real-time monitoring and closed-loop adjustment of a control system, the variable-diameter pressure control hole and the sealing plug are linearly matched, stepless adjustment of a pressure relief rate is realized, the cavity pressure is stable during the blow molding process, the pressure fluctuation is avoided to affect the forming quality, the lifting stroke, the swing angle and the swing frequency of the nozzle can be adjusted according to the shape of the mold and the curvature of the bottle, the diversified production requirements are met, and the process adaptability is improved.

Description

Technical Field

[0001] This invention belongs to the technical field of glass product forming equipment, specifically a glass bottle blow molding device and method with an openable and closable microporous venting structure. Background Technology

[0002] Glass bottles are widely used in packaging for food, medicine, beverages, cosmetics, and other products closely related to people's lives due to their hygiene, aesthetics, airtightness, safety, and good chemical stability, as they do not react chemically with the substances they contain. They are the best packaging material. Currently, there are many types of molding dies for glass bottle blowing on the market, which can basically meet people's needs.

[0003] The prior art discloses some invention patents in the field of glass product forming equipment technology. Among them, the invention patent with publication number CN119750888A discloses a glass bottle blow molding device and demolding method, including a blow molding table and a pre-forming mold set on the blow molding table, as well as an air blowing component and a triggering mechanism, all of which are set in the blow molding table; the pre-forming mold is also provided with an air blowing pipe, and a shaping mechanism is provided on the air blowing pipe. This invention utilizes the coordinated operation of a blow molding platform, a pre-forming mold, an air-filling assembly, a triggering mechanism, an air-blowing pipe, and a shaping mechanism. The triggering mechanism moves to sequentially rotate the air-filling assembly and align it with the pre-forming mold. The air-blowing pipe then forms an opening in the preform within the mold. The triggering mechanism then moves the shaping mechanism upwards to the opening, where it rotates and gradually unfolds, shaping the opening to ensure uniformity and smoothness. This reduces the problem of inconsistent bottle mouth thickness caused by various factors and improves the precision of glass bottle blow molding. However, this technology still has some shortcomings. The applicator moves from bottom to top via mechanical linkage. If the mold groove structure is complex, such as for irregularly shaped bottles or deep-cavity bottles, the applicator may not be able to cover the entire inner wall, resulting in blind spots and affecting demolding performance.

[0004] Based on this, the present invention designs a glass bottle blow molding apparatus and method with an openable and closable microporous venting structure to solve the above problems. Summary of the Invention

[0005] To overcome the shortcomings of existing technologies, this invention proposes a glass bottle blow molding apparatus and method with an openable and closable microporous venting structure. This invention primarily addresses the problem that when the applicator moves from bottom to top via mechanical linkage, if the mold groove structure is complex, such as irregularly shaped bottles or deep-cavity bottles, the applicator may not be able to cover the entire inner wall, resulting in application blind spots and affecting demolding performance.

[0006] The technical solution adopted by the present invention to solve its technical problem is: a glass bottle blow molding device with an openable and closable microporous exhaust structure, including a blow molding machine, a first mold connected to the side of the blow molding machine, a movable seat telescopically connected to the blow molding machine, a second mold used in conjunction with the first mold connected to the side of the movable seat, and a blow molding mechanism provided on the blow molding machine above the first mold and the second mold respectively; a base plate is snapped into the bottom port of the first mold, and after the second mold is docked with the first mold, the bottom port of the second mold is sealed by the base plate; The top of the chassis has a micro-hole, and a U-shaped frame is connected to the inside of the blow molding machine and below the micro-hole. A first electric cylinder is installed on the U-shaped frame. A sleeve is connected to the telescopic end of the first electric cylinder. A sealing plug is provided above the sleeve. The sealing plug is slidably fitted into the micro-hole. A pressure sensor is provided between the sealing plug and the sleeve.

[0007] Preferably, a pressure control cylinder is connected to the bottom of the chassis. The pressure control cylinder has a pressure control hole for cooperating with the sealing plug. The pressure control hole corresponds to the micropore, and its inner diameter gradually increases from top to bottom to regulate the pressure relief rate of the micropore.

[0008] Preferably, the outer wall of the sleeve is provided with a plurality of folding grooves arranged in a ring array, a folding shaft is embedded in the folding groove, and two adapter pipes are connected to the top of the folding shaft. The folding shaft is rotatably connected to the sleeve through the two adapter pipes, and the folding shaft is connected to the sleeve through the two adapter pipes. A nozzle is provided at the other end of the folding shaft, and the nozzle is connected to the folding shaft through a bend.

[0009] Preferably, the inner wall of the folding shaft is provided with a groove, a slider is slidably connected in the groove, a third spring is connected to the slider, the slider is elastically supported and connected to the inner wall of the groove through the third spring, a first adapter is connected to the inner wall of the slider, and an umbrella shaft is rotatably connected to the inner side of the first adapter. The outer wall of the sleeve is provided with an annular groove, and the inner top wall of the annular groove is provided with a plurality of lifting holes. A lifting rod is slidably sleeved in the lifting hole, and the top end of the lifting rod is connected to a second adapter. The other end of the umbrella shaft is rotatably connected to the inner side of the second adapter.

[0010] Preferably, a linkage ring is slidably sleeved on the inner wall of the annular groove, the bottom end of the lifting rod is connected to the top of the linkage ring, a permanent magnet ring is connected to the bottom of the linkage ring, and an annular electromagnet is sleeved on the inner bottom wall of the annular groove.

[0011] Preferably, the other end of the folding shaft is connected to an adapter frame, the inner side of the adapter frame is rotatably connected to an adapter shaft, an adapter seat is fixedly sleeved on the adapter shaft, and the nozzle is installed on the adapter seat; A first spring is sleeved on the adapter shaft, and the adapter seat is elastically rotatably connected to the inner wall of the adapter frame through the first spring; A take-up roller is also fixedly sleeved on the adapter shaft, and a wire hole is opened at the other end of the folding shaft, with a wire sleeve for sealing inserted in the wire hole.

[0012] Preferably, a partition plate is snapped into the sleeve, a sealing sleeve is snapped into the partition plate, a lifting shaft is slidably sleeved inside the sealing sleeve, a lifting plate is connected to the top of the lifting shaft, and multiple combination grooves are opened on the top of the lifting plate. The inner bottom of the sleeve is equipped with a second electric cylinder, the top of the second electric cylinder is connected to the bottom of the lifting shaft, and the rope wound on the take-up roller passes through the wire sleeve and the adapter pipe in sequence and enters the sleeve, and is fixed in the corresponding combination groove.

[0013] Preferably, the telescopic end of the first electric cylinder is connected to a bridging frame, the other end of the bridging frame is connected to a first toothed plate, a transmission gear meshes on the first toothed plate, a first rear support is connected to the U-shaped frame, a wheel axle is rotatably connected to the first rear support, the transmission gear is fixedly sleeved on the wheel axle, an intermittent gear is fixedly sleeved on the other end of the wheel axle, a third toothed plate meshes on the intermittent gear, a second toothed plate is connected to the top of the third toothed plate, a directional hole is opened at the end of the second toothed plate, a directional shaft is slidably sleeved in the directional hole, the other end of the directional shaft is connected to a second rear support, the second rear support is connected to the U-shaped frame, a second spring is sleeved on the directional shaft, the second toothed plate is elastically supported and connected to the second rear support through the second spring, and a toothed ring that meshes with the third toothed plate is fixedly sleeved on the sleeve.

[0014] Preferably, the outer wall of the sleeve has a plurality of bridging holes arranged in a ring array, and an adapter sleeve is rotatably connected to the outer wall of the sleeve corresponding to the bridging holes. The outer wall of the adapter sleeve has a water inlet.

[0015] A blow molding method for glass bottles with an openable and closable microporous venting structure includes the following steps: Step 1: The pressure in the mold cavity is detected in real time by a pressure sensor. When the pressure exceeds the standard, the control system drives the first electric cylinder to retract, which drives the sealing plug to slide down into the variable diameter pressure control hole, thereby realizing stepless adjustment of the pressure relief rate and forming a closed-loop pressure stabilization control. Step 2: The first electric cylinder pushes the sleeve into the mold cavity, the annular electromagnet is energized to drive the linkage ring to move upward, and the slider is pushed through the umbrella shaft linkage mechanism to make multiple folding shafts unfold synchronously. The release agent is sprayed out of the nozzle through the internal flow route and the first electric cylinder drives the lifting and lowering to complete the spraying. Step 3: The second electric cylinder drives the lifting shaft to reciprocate. Through the cooperation of the rope and the take-up roller, the nozzle is tilted up or down to achieve real-time adjustment of the nozzle angle. This is coordinated with the spray flow rate to ensure uniform coating on the inner wall of the mold cavity. Step 4: The telescopic end of the first electric cylinder drives the intermittent gear to rotate via gear transmission, which in turn drives the second toothed plate to slide bidirectionally. This causes the sleeve to drive multiple spray nozzles to simultaneously achieve short-stroke rotation in both directions. In coordination with the lifting motion, this completes multi-angle, all-around spraying of the inner wall of the mold cavity. The beneficial effects of this invention are as follows: 1. In this invention, the pressure sensor monitors and controls the closed-loop regulation of the system in real time. Combined with the linear coordination of the variable diameter pressure control hole and the sealing plug, the pressure relief rate can be infinitely adjusted to ensure the stability of the mold cavity pressure during blow molding and avoid pressure fluctuations from affecting the molding quality. The nozzle lifting stroke, swing angle, and swing frequency can all be adjusted according to the mold shape and bottle curvature to meet diverse production needs and improve process adaptability.

[0016] 2. In this invention, the folding shaft is stored in the folding groove when not in operation, which does not affect the normal opening and closing of the mold. During spraying, it is synchronously unfolded by electromagnetic drive in conjunction with the umbrella shaft. The structure has a high degree of integration and the action response is rapid.

[0017] 3. In this invention, the first electric cylinder controls the raising and lowering of the spray head to adapt to different mold depths and bottle heights, and the second electric cylinder drives the spray head to swing up and down to achieve adjustable angle. Combined with the rotation of the sleeve to drive the spray head to rotate in a short stroke, a multi-degree-of-freedom motion is formed to ensure that there are no dead corners in the inner wall of the mold cavity and that the release agent is evenly applied.

[0018] 4. In this invention, lifting, swinging, and flipping actions are achieved through the coordinated action of electric cylinders, gear transmission, and spring reset mechanism. The motion logic is clear, the control precision is high, and the consistency and automation level of the spraying operation are effectively improved. Attached Figure Description

[0019] The invention will now be further described with reference to the accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a frontal planar structural schematic diagram of the present invention; Figure 3 This is a cross-sectional structural schematic diagram of the present invention; Figure 4 This is a schematic diagram of the U-shaped frame in this invention; Figure 5 In this invention Figure 4 A structural diagram from another perspective; Figure 6 In this invention Figure 4 A schematic diagram of the three-dimensional structure viewed from below; Figure 7 In this invention Figure 4 A cross-sectional structural diagram; Figure 8 In this invention Figure 7 A side view of the planar structure; Figure 9 This is the present invention. Figure 4 Enlarged structural diagram at point A; Figure 10 This is the present invention. Figure 8 Enlarged structural diagram at point B; Figure 11 This is the present invention. Figure 8 Enlarged structural diagram at point C; Figure 12 This is the present invention. Figure 7 Enlarged structural diagram at point D; Figure 13 This is the present invention. Figure 7 Enlarged structural diagram at point E; In the diagram: 1. Blow molding machine; 2. First mold; 3. Movable seat; 4. Second mold; 5. Blow molding mechanism; 6. Base; 7. Micro-hole; 8. Sleeve; 9. Sealing plug; 10. Pressure sensor; 11. Pressure control cylinder; 12. Pressure control hole; 13. First electric cylinder; 14. U-shaped frame; 15. Folding groove; 16. Folding shaft; 17. Adapter pipe; 18. Adapter frame; 19. Adapter shaft; 20. First spring; 21. Take-up roller; 22. Adapter seat; 23. Nozzle; 24. Bridging hole; 25. Adapter sleeve; 26. Slide groove; 27. Slider; 28. First adapter; 29. ​​Umbrella 30. Shaft; 31. Second adapter; 32. Lifting rod; 33. Linkage ring; 34. Permanent magnet ring; 35. Annular electromagnet; 36. Lifting plate; 37. Combination groove; 38. Separator plate; 39. Sealing sleeve; 40. Lifting shaft; 41. Second electric cylinder; 42. Bridge frame; 43. First gear plate; 44. Transmission gear; 45. Wheel axle; 46. Intermittent gear; 47. Second gear plate; 48. Orientation hole; 49. Orientation shaft; 50. Second spring; 51. First rear support; 52. Gear ring; 53. Annular groove; 54. Water inlet; 55. Second rear support; 56. Third gear plate. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0022] like Figures 1 to 13 As shown, a glass bottle blow molding apparatus with an openable and closable micro-hole 7 exhaust structure includes a blow molding machine 1, a first mold 2 connected to the side of the blow molding machine 1, a movable seat 3 telescopically connected to the blow molding machine 1, a second mold 4 used in conjunction with the first mold 2 connected to the side of the movable seat 3, and a blow molding mechanism 5 provided on the blow molding machine 1 above the first mold 2 and the second mold 4 respectively; a base plate 6 is snapped into the bottom port of the first mold 2, and after the second mold 4 is docked with the first mold 2, the bottom port of the second mold 4 is sealed by the base plate 6. The top of the chassis 6 has a micro-hole 7. The inside of the blow molding machine 1 is connected to the bottom of the micro-hole 7. A U-shaped frame 14 is installed on the U-shaped frame 14. A sleeve 8 is connected to the telescopic end of the first electric cylinder 13. A sealing plug 9 is provided above the sleeve 8. The sealing plug 9 is slidably fitted into the micro-hole 7. A pressure sensor 10 is provided between the sealing plug 9 and the sleeve 8. The bottom of the chassis 6 is connected to a pressure control cylinder 11. The pressure control cylinder 11 has a pressure control hole 12 for cooperating with the sealing plug 9. The pressure control hole 12 corresponds to the micro-hole 7, and its inner diameter gradually increases from top to bottom to regulate the pressure relief speed of the micro-hole 7.

[0023] Specifically, this embodiment involves the following: When the blow molding mechanism 5 performs glass bottle blow molding within the cavity formed by the first mold 2 and the second mold 4 after docking, the pressure inside the cavity gradually increases due to the high temperature of the blow molding process. The sealing plug 9 within the micropore 7 is subjected to the pressure inside the cavity and transmits the pressure towards the sleeve 8. During this process, the pressure sensor 10, located between the sealing plug 9 and the sleeve 8, detects the transmitted pressure. When the pressure inside the cavity exceeds the environmental pressure of the glass bottle blow molding operation, the control system controls the first electric cylinder 13 to retract, pulling down the sleeve 8. The sleeve 8 then causes the sealing plug 9 to slide downward within the micropore 7 and into the pressure control hole 12. The pressure inside the cavity is then released through the micropore 7 and the pressure control hole 12. The diameter of the pressure control hole 12 gradually increases from top to bottom. By controlling the sliding height of the sealing plug 9 within the pressure control hole 12, the flow cross-section of the pressure airflow is adjusted, thereby regulating the pressure relief rate inside the mold cavity. This ensures that the mold cavity provides a stable molding pressure environment for the blow molding operation. The pressure sensor 10 detects the internal pressure of the mold cavity in real time, realizing dynamic monitoring of pressure changes during the blow molding process. The control system automatically determines whether pressure relief intervention is needed based on the pressure signal, forming a closed-loop control. The pressure control hole 12 adopts a variable diameter structure that gradually increases from top to bottom. The sliding height of the sealing plug 9 within the pressure control hole 12 is linearly related to the flow cross-section of the pressure relief airflow. By controlling the sliding height of the sealing plug 9, stepless adjustment of the pressure relief rate is achieved, avoiding the impact of excessively fast or slow pressure relief on molding quality.

[0024] Specifically, the outer wall of the sleeve 8 is provided with a plurality of folding grooves 15 arranged in a ring array. A folding shaft 16 is embedded in the folding groove 15. Two adapter pipes 17 are connected to the top of the folding shaft 16. The folding shaft 16 is rotatably connected to the sleeve 8 through the two adapter pipes 17, and the folding shaft 16 is connected to the sleeve 8 through the two adapter pipes 17. A nozzle 23 is provided at the other end of the folding shaft 16, and the nozzle 23 is connected to the folding shaft 16 through a bent pipe. The inner wall of the folding shaft 16 is provided with a groove 26, and a slider 27 is slidably connected in the groove 26. A third spring is connected to the slider 27. The slider 27 is elastically supported and connected to the inner wall of the groove 26 through the third spring. A first adapter 28 is connected to the inner wall of the slider 27. An umbrella shaft 29 is rotatably connected to the inner side of the first adapter 28. The outer wall of the sleeve 8 is provided with an annular groove 52, and the inner top wall of the annular groove 52 is provided with multiple lifting holes. A lifting rod 31 is slidably sleeved in the lifting hole. The top end of the lifting rod 31 is connected to a second adapter 30, and the other end of the umbrella shaft 29 is rotatably connected to the inner side of the second adapter 30. A linkage ring 32 is slidably sleeved on the inner wall of the annular groove 52, the bottom end of the lifting rod 31 is connected to the top of the linkage ring 32, a permanent magnet ring 33 is connected to the bottom of the linkage ring 32, and an annular electromagnet 34 is sleeved on the inner bottom wall of the annular groove 52. The outer wall of the sleeve 8 is provided with a plurality of bridging holes 24 arranged in a ring. A transition sleeve 25 is rotatably connected to the outer wall of the sleeve 8 corresponding to the bridging holes 24. A water inlet 53 is provided on the outer wall of the transition sleeve 25.

[0025] Specifically, in this embodiment: when it is necessary to spray a release agent onto the mold cavity, the control system controls the first electric cylinder 13 to extend, pushing the sleeve 8 into the mold cavity. Then, the control system controls the annular electromagnet 34 to be energized. After the annular electromagnet 34 is energized, it generates magnetic force on the permanent magnet ring 33. Under the push of the magnetic force, the permanent magnet ring 33 drives the linkage ring 32 to slide upward on the inner wall of the annular groove 52. During this process, the linkage ring 32 simultaneously pushes multiple lifting rods 31 upward. The lifting rods 31 move upward in the lifting holes and drive the second adapter 30 to rise upward in the folding groove 15. Under the push of the second adapter 30, one end of the umbrella shaft 29 rotates inside the second adapter 30, and the other end of the umbrella shaft 29 rotates inside the first adapter 28. At the same time, the first adapter 28 pushes the slider 27 to slide in the slide groove 26 and applies pressure to the third spring to cause elastic deformation. Since the slider 27 and the second adapter 30 are not on the same plane, the slider 27 will push The folding shaft 16 rotates under the action of thrust via the adapter pipe 17, and multiple folding shafts 16 unfold synchronously. The adapter sleeve 25 is connected to the release agent delivery hose through the water inlet 53. The release agent is delivered into the adapter sleeve 25 through the hose, then flows into the sleeve 8 through the bridging hole 24, and then flows into the folding shaft 16 through the adapter pipe 17. Finally, it flows into the nozzle 23 through the bend pipe and is sprayed out. The first electric cylinder 13 drives multiple nozzles 23 to rise and fall in the mold cavity to complete the spraying operation. When not in operation, the folding shaft 16 is stored in the folding groove 15, which does not affect the normal opening and closing of the mold and the blow molding operation. When spraying is required, the folding shaft 16 is synchronously unfolded by electromagnetic drive in conjunction with the umbrella shaft 29. The structure is compact and the operation is reliable. The first electric cylinder 13 can control the lifting height of the sleeve 8 and the nozzle 23. The spraying stroke can be flexibly adjusted according to different mold depths and bottle heights to achieve full coverage spraying of the inner wall of the mold cavity and improve the uniformity of the release agent coating.

[0026] Specifically, the other end of the folding shaft 16 is connected to an adapter frame 18, the inner side of the adapter frame 18 is rotatably connected to an adapter shaft 19, an adapter seat 22 is fixedly sleeved on the adapter shaft 19, and the nozzle 23 is installed on the adapter seat 22. A first spring 20 is sleeved on the adapter shaft 19, and the adapter seat 22 is elastically rotatably connected to the inner wall of the adapter frame 18 through the first spring 20. A take-up roller 21 is also fixedly sleeved on the adapter shaft 19. A wire hole is opened at the other end of the folding shaft 16. A wire sleeve for sealing is clamped in the wire hole. A separator plate 37 is clamped in the sleeve 8. A sealing sleeve 38 is clamped on the separator plate 37. A lifting shaft 39 is slidably sleeved in the sealing sleeve 38. A lifting plate 35 is connected to the top of the lifting shaft 39. A plurality of combination grooves 36 are opened on the top of the lifting plate 35. The inner bottom of the sleeve 8 is equipped with a second electric cylinder 40. The top of the second electric cylinder 40 is connected to the bottom of the lifting shaft 39. The rope wound on the take-up roller 21 passes through the wire sleeve and the adapter pipe 17 in sequence and enters the sleeve 8, and is fixed in the corresponding combination groove 36.

[0027] Specifically, in this embodiment: when the nozzle 23 is spraying the mold cavity, the control system controls the second electric cylinder 40 to operate. The second electric cylinder 40 drives the lifting shaft 39 to reciprocate within the sealing sleeve 38. The lifting shaft 39 applies tension or thrust to the lifting plate 35. When the lifting plate 35 descends, it pulls the rope, and part of the rope wound on the take-up roller 21 is gradually released, causing the take-up roller 21 to rotate via the adapter shaft 19. The rotation of the adapter shaft 19 causes the nozzle 23 to tilt upwards, while simultaneously twisting the first spring 20 to cause it to elastically deform. When the lifting plate 35 ascends, the first spring 20 begins its elastic reset movement, twisting the adapter shaft 19 in the opposite direction. The released rope is then rewound onto the take-up roller 21, and the nozzle 23 tilts downwards. The second electric cylinder 40 drives the lifting shaft 39 to reciprocate, causing the nozzle 23 to tilt upwards or downwards. The angle of the nozzle 23 can be adjusted in real time according to the shape of the mold cavity and the spraying position, so as to achieve spraying without dead angles on the inner wall of the mold cavity. The reciprocating lifting frequency of the second electric cylinder 40 and the spraying flow rate of the nozzle 23 can be controlled in tandem. By controlling the lifting speed and the swing frequency of the nozzle 23, the release agent can be evenly coated on the inner wall of the mold cavity. The upward and downward tilt angles of the nozzle 23 can be adjusted by controlling the stroke of the second electric cylinder 40. The swing range of the nozzle 23 can be preset according to the depth and curvature of different bottle shapes to meet diverse production needs.

[0028] Specifically, the telescopic end of the first electric cylinder 13 is connected to a bridging frame 41, the other end of the bridging frame 41 is connected to a first toothed plate 42, a transmission gear 43 meshes on the first toothed plate 42, a first rear support 54 is connected to the U-shaped frame 14, a wheel axle 44 is rotatably connected to the first rear support 54, the transmission gear 43 is fixedly sleeved on the wheel axle 44, an intermittent gear 45 is fixedly sleeved on the other end of the wheel axle 44, a third toothed plate 55 meshes on the intermittent gear 45, a second toothed plate 46 is connected to the top of the third toothed plate 55, a directional hole 47 is opened at the end of the second toothed plate 46, a directional shaft 48 is slidably sleeved in the directional hole 47, the other end of the directional shaft 48 is connected to a second rear support 50, the second rear support 50 is connected to the U-shaped frame 14, a second spring 49 is sleeved on the directional shaft 48, the second toothed plate 46 is elastically supported and connected to the second rear support 50 through the second spring 49, and a toothed ring 51 that meshes with the third toothed plate 55 is fixedly sleeved on the sleeve 8.

[0029] In this specific embodiment, during the lifting and lowering motion of the sleeve 8 driven by the telescopic end of the first electric cylinder 13, the telescopic end also synchronously drives the first toothed plate 42 through the bridging rod. The first toothed plate 42 drives the transmission gear 43 to rotate through the wheel axle 44. The wheel axle 44 drives the intermittent gear 45 to rotate on the third toothed plate 55. When the teeth on the intermittent gear 45 mesh with the teeth on the third toothed plate 55, the intermittent gear 45 generates a pushing or pulling force on the third toothed plate 55, causing the second toothed plate 46 to slide on the directional shaft 48 through the directional hole 47 and apply pressure to the second spring 49. This causes elastic deformation. During this process, the second toothed plate 46 drives the sleeve 8 to rotate. As the sleeve 8 rotates, it simultaneously drives multiple nozzles 23 to perform short-stroke flipping motions. The intermittent gear 45 can generate pushing or pulling forces on the third toothed plate 55, enabling bidirectional sliding of the second toothed plate 46. The sleeve 8 can drive the nozzles 23 to achieve short-stroke flipping in both forward and reverse directions, adapting to different spraying angle requirements. Multiple nozzles 23 are synchronously driven by the sleeve 8 to achieve a unified flipping motion. The flipping and lifting motions of the nozzles 23 work together to achieve multi-angle and all-round spraying of the inner wall of the mold cavity.

[0030] During operation, when the blow molding mechanism 5 performs glass bottle blow molding within the cavity formed by the first mold 2 and the second mold 4 after docking, the pressure inside the cavity gradually increases due to the high temperature of the blow molding process. The sealing plug 9 in the micro-hole 7 is subjected to the pressure inside the cavity and transmits the pressure towards the sleeve 8. During this process, the pressure sensor 10, located between the sealing plug 9 and the sleeve 8, detects the transmitted pressure. When the pressure inside the cavity exceeds the environmental pressure of the glass bottle blow molding operation, the control system controls the first electric cylinder 13 to retract, pulling down the sleeve 8. The sleeve 8 then causes the sealing plug 9 to slide downwards within the micro-hole 7 and into the pressure control hole 12. The pressure inside the cavity is then released through the micro-hole 7 and the pressure control hole 12. The diameter of the pressure control hole 12 gradually increases from top to bottom. By controlling the sliding height of the sealing plug 9 in the pressure control hole 12, the flow cross-section of the pressure airflow is adjusted, thereby regulating the pressure relief rate inside the mold cavity. This ensures that the mold cavity provides a stable molding pressure environment for the blow molding operation. The pressure sensor 10 detects the pressure inside the mold cavity in real time, realizing dynamic monitoring of pressure changes during the blow molding process. The control system automatically determines whether pressure relief intervention is needed based on the pressure signal, forming a closed-loop control. The pressure control hole 12 adopts a variable diameter structure that gradually increases from top to bottom. The sliding height of the sealing plug 9 in the pressure control hole 12 is linearly related to the flow cross-section of the pressure relief airflow. By controlling the sliding height of the sealing plug 9, stepless adjustment of the pressure relief rate is achieved, avoiding the impact of excessively fast or slow pressure relief on the molding quality. When a release agent needs to be sprayed onto the mold cavity, the control system controls the first electric cylinder 13 to extend, pushing the sleeve 8 into the mold cavity. Then, the control system energizes the annular electromagnet 34, which generates magnetic force on the permanent magnet ring 33. Under the magnetic force, the permanent magnet ring 33 drives the linkage ring 32 to slide upwards along the inner wall of the annular groove 52. During this process, the linkage ring 32 simultaneously pushes multiple lifting rods 31 upwards. The lifting rods 31 move upwards within the lifting holes, driving the second adapter 30 to rise upwards within the folding groove 15. Driven by the second adapter 30, one end of the umbrella shaft 29 rotates inside the second adapter 30, and the other end rotates inside the first adapter 28. Simultaneously, the first adapter 28 pushes the slider 27 to slide within the slide groove 26, applying pressure to the third spring to cause elastic deformation. Since the slider 27 and the second adapter 30 are not on the same plane, the slider 27 will push the folding shaft... 16. Under the action of thrust, the folding shaft 16 rotates through the adapter pipe 17, and multiple folding shafts 16 unfold synchronously. The adapter sleeve 25 is connected to the release agent delivery hose through the water inlet 53. The release agent is delivered into the adapter sleeve 25 through the hose, and then flows into the sleeve 8 through the bridging hole 24. It is then diverted through the adapter pipe 17 and flows into the folding shaft 16. Finally, it flows into the nozzle 23 through the bend and is sprayed out. The first electric cylinder 13 drives multiple nozzles 23 to rise and fall in the mold cavity to complete the spraying operation. When not in operation, the folding shaft 16 is stored in the folding groove 15, which does not affect the normal opening and closing of the mold and the blow molding operation. When spraying is required, the folding shaft 16 is synchronously unfolded by electromagnetic drive in conjunction with the umbrella shaft 29. The structure is compact and the operation is reliable. The first electric cylinder 13 can control the lifting height of the sleeve 8 and the nozzle 23. The spraying stroke can be flexibly adjusted according to different mold depths and bottle heights to achieve full coverage spraying of the inner wall of the mold cavity and improve the uniformity of the release agent coating. When the nozzle 23 sprays the mold cavity, the control system controls the second electric cylinder 40 to operate. The second electric cylinder 40 drives the lifting shaft 39 to reciprocate within the sealing sleeve 38. The lifting shaft 39 applies tension or thrust to the lifting plate 35. When the lifting plate 35 descends, it pulls the rope, and part of the rope wound on the take-up roller 21 is gradually released, causing the take-up roller 21 to rotate through the adapter shaft 19. The rotation of the adapter shaft 19 causes the nozzle 23 to tilt upward, while simultaneously twisting the first spring 20 to cause it to elastically deform. When the lifting plate 35 ascends, the first spring 20 begins to elastically reset, twisting the adapter shaft 19 in the opposite direction, and the released rope is re-wound. The nozzle 23 is wound onto the take-up roller 21 and tilted downwards. The second electric cylinder 40 drives the lifting shaft 39 to perform reciprocating lifting motion, causing the nozzle 23 to tilt upwards or downwards. The angle of the nozzle 23 can be adjusted in real time according to the shape of the mold cavity and the spraying position, so as to achieve spraying without dead angles on the inner wall of the mold cavity. The reciprocating lifting frequency of the second electric cylinder 40 and the spraying flow rate of the nozzle 23 can be controlled in tandem. By controlling the lifting speed and the swing frequency of the nozzle 23, the release agent can be evenly coated on the inner wall of the mold cavity. The upward and downward tilting angles of the nozzle 23 can be adjusted by controlling the stroke of the second electric cylinder 40. The swing range of the nozzle 23 can be preset according to the depth and curvature of different bottle shapes to meet diverse production needs. During the lifting and lowering motion of the sleeve 8 driven by the telescopic end of the first electric cylinder 13, the telescopic end also synchronously drives the first toothed plate 42 through the bridging rod. The first toothed plate 42 drives the transmission gear 43 to rotate through the wheel axle 44. The wheel axle 44 drives the intermittent gear 45 to rotate on the third toothed plate 55. When the teeth on the intermittent gear 45 mesh with the teeth on the third toothed plate 55, the intermittent gear 45 generates a pushing or pulling force on the third toothed plate 55, causing the second toothed plate 46 to slide on the directional shaft 48 through the directional hole 47 and apply pressure to the second spring 49 to cause it to rotate. During the elastic deformation process, the second toothed plate 46 drives the sleeve 8 to rotate. As the sleeve 8 rotates, it simultaneously drives multiple nozzles 23 to perform short-stroke flipping motions. The intermittent gear 45 can generate pushing or pulling force on the third toothed plate 55, enabling bidirectional sliding of the second toothed plate 46. The sleeve 8 can drive the nozzles 23 to achieve short-stroke flipping in both forward and reverse directions, adapting to different spraying angle requirements. Multiple nozzles 23 are synchronously driven by the sleeve 8 to achieve a unified flipping motion. The flipping and lifting motions of the nozzles 23 are coordinated to achieve multi-angle and all-round spraying of the inner wall of the mold cavity.

[0031] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present invention.

Claims

1. A glass bottle blow molding apparatus with an openable and closable microporous venting structure, comprising a blow molding machine (1), a first mold (2) connected to the side of the blow molding machine (1), a movable seat (3) telescopically connected to the blow molding machine (1), a second mold (4) cooperating with the first mold (2) connected to the side of the movable seat (3), and a blow molding mechanism (5) provided above the blow molding machine (1) corresponding to the first mold (2) and the second mold (4); characterized in that: The bottom port of the first mold (2) is fitted with a chassis (6). After the second mold (4) is connected to the first mold (2), the bottom port of the second mold (4) is sealed by the chassis (6). The top of the chassis (6) is provided with a microhole (7). A U-shaped frame (14) is connected to the inside of the blow molding machine (1) and below the microhole (7). A first electric cylinder (13) is installed on the U-shaped frame (14). A sleeve (8) is connected to the telescopic end of the first electric cylinder (13). A sealing plug (9) is provided above the sleeve (8). The sealing plug (9) is slidably fitted into the microhole (7). A pressure sensor (10) is provided between the sealing plug (9) and the sleeve (8). The outer wall of the sleeve (8) is provided with a plurality of folding grooves (15) arranged in a ring array. A folding shaft (16) is embedded in the folding groove (15). Two adapter pipes (17) are connected to the top of the folding shaft (16). The folding shaft (16) is rotatably connected to the sleeve (8) through the two adapter pipes (17), and the folding shaft (16) is connected to the sleeve (8) through the two adapter pipes (17). The other end of the folding shaft (16) is provided with a nozzle (23), which is connected to the folding shaft (16) through a bend.

2. The glass bottle blow molding apparatus with an openable and closable microporous venting structure according to claim 1, characterized in that: The bottom of the chassis (6) is connected to a pressure control cylinder (11). The pressure control cylinder (11) has a pressure control hole (12) for cooperating with the sealing plug (9). The pressure control hole (12) corresponds to the micro-hole (7), and its inner diameter gradually increases from top to bottom to regulate the pressure relief speed of the micro-hole (7).

3. The glass bottle blow molding apparatus with an openable and closable microporous venting structure according to claim 2, characterized in that: The inner wall of the folding shaft (16) is provided with a groove (26), and a slider (27) is slidably connected in the groove (26). A third spring is connected to the slider (27), and the slider (27) is elastically supported and connected to the inner wall of the groove (26) through the third spring. A first adapter (28) is connected to the inner wall of the slider (27), and an umbrella shaft (29) is rotatably connected to the inner side of the first adapter (28). The outer wall of the sleeve (8) is provided with an annular groove (52), and the inner top wall of the annular groove (52) is provided with multiple lifting holes. A lifting rod (31) is slidably sleeved in the lifting hole. The top end of the lifting rod (31) is connected to a second adapter (30), and the other end of the umbrella shaft (29) is rotatably connected to the inner side of the second adapter (30).

4. The glass bottle blow molding apparatus with an openable and closable microporous venting structure according to claim 3, characterized in that: The inner wall of the annular groove (52) is slidably fitted with a linkage ring (32), the bottom end of the lifting rod (31) is connected to the top of the linkage ring (32), the bottom of the linkage ring (32) is connected with a permanent magnet ring (33), and the inner bottom wall of the annular groove (52) is fitted with an annular electromagnet (34).

5. The glass bottle blow molding apparatus with an openable and closable microporous venting structure according to claim 4, characterized in that: The other end of the folding shaft (16) is connected to an adapter frame (18), and the inner side of the adapter frame (18) is rotatably connected to an adapter shaft (19). An adapter seat (22) is fixedly sleeved on the adapter shaft (19), and the nozzle (23) is installed on the adapter seat (22). A first spring (20) is sleeved on the adapter shaft (19), and the adapter seat (22) is elastically rotatably connected to the inner wall of the adapter frame (18) through the first spring (20); A take-up roller (21) is also fixedly sleeved on the adapter shaft (19), and a wire hole is opened at the other end of the folding shaft (16), and a wire sleeve for sealing is inserted into the wire hole.

6. The glass bottle blow molding apparatus with an openable and closable microporous venting structure according to claim 5, characterized in that: A partition plate (37) is snapped into the sleeve (8), a sealing sleeve (38) is snapped onto the partition plate (37), a lifting shaft (39) is slidably sleeved inside the sealing sleeve (38), a lifting plate (35) is connected to the top of the lifting shaft (39), and a plurality of combination grooves (36) are opened on the top of the lifting plate (35). The inner bottom of the sleeve (8) is equipped with a second electric cylinder (40). The top of the second electric cylinder (40) is connected to the bottom of the lifting shaft (39). The rope wound on the take-up roller (21) passes through the wire sleeve and the adapter pipe (17) in sequence and enters the sleeve (8), and is fixed in the corresponding combination groove (36).

7. The glass bottle blow molding apparatus with an openable and closable microporous venting structure according to claim 6, characterized in that: The telescopic end of the first electric cylinder (13) is connected to a bridging frame (41), and the other end of the bridging frame (41) is connected to a first toothed plate (42). A transmission gear (43) meshes on the first toothed plate (42). A first rear support (54) is connected to the U-shaped frame (14), and a wheel axle (44) is rotatably connected to the first rear support (54). The transmission gear (43) is fixedly sleeved on the wheel axle (44). An intermittent gear (45) is fixedly sleeved on the other end of the wheel axle (44). A third toothed plate (55) meshes on the intermittent gear (45). The top of the device is connected to a second toothed plate (46), and the end of the second toothed plate (46) is provided with a directional hole (47). A directional shaft (48) is slidably sleeved in the directional hole (47). The other end of the directional shaft (48) is connected to a second rear bracket (50). The second rear bracket (50) is connected to the U-shaped frame (14). A second spring (49) is sleeved on the directional shaft (48). The second toothed plate (46) is elastically supported and connected to the second rear bracket (50) through the second spring (49). A toothed ring (51) that meshes with the third toothed plate (55) is fixedly sleeved on the sleeve (8).

8. The glass bottle blow molding apparatus with an openable and closable microporous venting structure according to claim 7, characterized in that: The outer wall of the sleeve (8) is provided with a plurality of bridging holes (24) arranged in a ring array. The outer wall of the sleeve (8) is rotatably connected to the bridging holes (24). The outer wall of the adapter sleeve (25) is provided with a water inlet (53).

9. A glass bottle blow molding method with an openable and closable microporous venting structure, wherein the glass bottle blow molding apparatus with an openable and closable microporous venting structure according to claim 8 is characterized in that, Includes the following steps: Step 1: The pressure in the mold cavity is detected in real time by the pressure sensor (10). When the pressure exceeds the standard, the control system drives the first electric cylinder (13) to retract, which drives the sealing plug (9) to slide down into the variable diameter pressure control hole (12) to realize stepless adjustment of the pressure relief rate and form a closed-loop pressure stabilization control. Step 2: The first electric cylinder (13) pushes the sleeve (8) into the mold cavity. The annular electromagnet (34) is energized to drive the linkage ring (32) to move upward. Through the umbrella shaft (29) linkage mechanism, the slider (27) is pushed, so that multiple folding shafts (16) unfold synchronously. The release agent is sprayed out through the nozzle (23) through the internal flow route and is lifted and lowered by the first electric cylinder (13) to complete the spraying. Step 3: The second electric cylinder (40) drives the lifting shaft (39) to reciprocate. Through the cooperation of the rope and the take-up roller (21), the nozzle (23) is tilted up or down to achieve real-time adjustment of the nozzle (23) angle. This is coordinated with the spray flow rate to ensure uniform coating on the inner wall of the mold cavity. Step 4: The telescopic end of the first electric cylinder (13) drives the intermittent gear (45) to rotate through gear transmission, which drives the second toothed plate (46) to slide in both directions, so that the sleeve (8) drives multiple nozzles (23) to simultaneously achieve short-stroke flipping in both directions, which, in coordination with the lifting motion, completes multi-angle and all-round spraying of the inner wall of the mold cavity.

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