A PET wide-mouth bottle blank processing technology

Abstract

The invention relates to the technical field of bottle blank processing, and in particular to a PET wide-mouth bottle blank processing technology, comprising the following steps: S1, stacking the injection-molded bottle blank body on a conveyor belt and conveying it to one side of a frame body for easy loading; S2, a loading component is installed on the frame body for sleeve-connecting the bottle blank body on the periphery of a nozzle to prepare for airtightness detection; S3, a detection component is installed on the frame body, and the bottle blank body can be immersed in water, and gas is injected into the bottle blank body at the same time. In order to detect whether there are cracks in the bottle blank and improve the processing quality of the wide-mouth bottle, the present invention can determine whether there are cracks in the bottle blank body by sinking the bottle blank body into water and observing whether bubbles emerge, and at the same time, air is injected into the bottle blank body through the nozzle, so that the internal air pressure is increased, the speed at which the gas overflows from the crack is accelerated, the bubbles in the water are dense, which is convenient for observation, and the processing quality of the wide-mouth bottle is improved.

Description

Technical Field

[0001] The invention relates to the technical field of bottle blank processing, and in particular to a PET wide-mouth bottle blank processing technology. Background Art

[0002] Wide-mouth bottles are bottles with relatively large mouths. Wide-mouth bottles made of glass or plastic are often used in laboratories to hold solid medicines, etc. Polyethylene terephthalate, abbreviated as PET, is a crystalline saturated polyester. It is a milky white or light yellow, highly crystalline polymer with a smooth and shiny surface. It is a common resin in life. Because it has excellent physical and mechanical properties in a wide temperature range, the operating temperature can reach 120°C, and it has excellent electrical insulation, creep resistance, fatigue resistance, friction resistance, and dimensional stability, it is often used as the raw material for the production of plastic wide-mouth bottles.

[0003] In the process of producing PET wide-mouth bottles, the factory needs to first inject the raw materials into the injection molding machine, produce the bottle blank by injection molding, and then place the bottle blank into the blow molding machine after heating and softening, and make the wide-mouth bottle by blow molding. Most of the existing PET wide-mouth bottle blank processing technologies are not convenient for sealing testing before blow molding. Since the blow molding operation requires the bottle blank to have good ductility, this requires that the body of the bottle blank cannot have cracks. In the injection molding process, due to the difficulty in accurately controlling factors such as injection pressure and mold air tightness, the quality of the produced bottle blanks is inconsistent. Therefore, after the bottle blank is injection molded, it is necessary to conduct an airtightness test to ensure that there are no cracks in the body. If there are defects in the bottle blank, it is easy to cause blow molding failure, poor wide-mouth bottle molding effect, or even rupture and pressure loss, causing excessive wear of the blow molding equipment and serious economic losses. Summary of the invention

[0004] The object of the present invention is to provide a PET wide-mouth bottle preform processing technology, which can detect whether the bottle preform has cracks and improve the processing quality of the wide-mouth bottle.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] Provided is a PET wide-mouth bottle blank processing process, comprising the following steps: S1, stacking the injection-molded bottle blank body on a conveyor belt and conveying it to one side of a frame for easy loading; S2, a loading assembly is installed on the frame for sleeve-connecting the bottle blank body to the periphery of a nozzle to prepare for airtightness detection; S3, a detection assembly is installed on the frame, and the bottle blank body can be immersed in water, and gas is injected into the bottle blank body at the same time, and whether there are bubbles in the water is observed to detect whether there are cracks in the bottle blank body, thereby improving the processing quality; S4, a linkage assembly is installed on one side of the loading assembly, and is used to drive the detection assembly and the loading assembly to work alternately to ensure the continuity of the detection of multiple bottle blank bodies; S5, The bottle blank body that has been inspected is removed from the nozzle, the qualified bottle blank body is placed in the blow molding machine for processing, and the unqualified bottle blank body is placed in the recycling bin for waste recycling. The machine comprises a frame and a detection component, the detection component comprises a shell, multiple telescopic rods, multiple nozzles, a fan and a water tank, the multiple telescopic rods are distributed in a circle on the periphery of the shell, one end of the telescopic rod is fixedly connected to the shell, the other end of the telescopic rod is fixedly connected to the periphery of the nozzle, one side of the nozzle is plugged into the bottle blank body, the periphery of the nozzle is fixedly connected with a rubber ring for anti-slip sealing, the shell can be vertically rotatably installed on the frame, the periphery of the water tank is fixedly connected to the frame, the bottom of the fan is fixedly connected to the top of the frame, and the fan is used to inject air into the interior of the bottle blank body through the nozzle.

[0007] Preferably, the telescopic rod includes a sleeve, a T-shaped rod and a tension spring, one end of the sleeve is fixedly connected to the periphery of the shell, the other end of the sleeve is slidably connected to the periphery of one end of the T-shaped rod, the other end of the T-shaped rod is fixedly connected to the periphery of the nozzle, one end of the tension spring is fixedly connected to the inner wall of the sleeve, and the other end of the tension spring is fixedly connected to the T-shaped rod. The detection assembly also includes a U-shaped limit rod, one side of the U-shaped limit rod is fixedly connected to the inner wall of the water tank, and the periphery of the U-shaped limit rod is in conflict with one side of the nozzle.

[0008] Preferably, the detection component also includes a rotating seat, a circular tube, an air duct and multiple hoses. The bottom of the rotating seat is fixedly connected to the frame, the circular tube passes through the rotating seat and is rotatably connected thereto, one end of the circular tube is fixedly connected to the shell, and the other end of the circular tube is rotatably connected to one end of the air duct. The air outlet of the fan is connected to the interior of the shell through the air duct and the circular tube, one end of the hose is connected to the shell, and the other end of the hose is connected to the nozzle.

[0009] Preferably, it also includes a loading assembly, which includes a support frame, a hopper, an L-shaped support plate, a hydraulic rod and a push block. The bottom of the support frame is fixedly connected to the top of the frame, the bottom of the hopper is fixedly connected to the top of the support frame, the bottom wall of one end of the hopper is an inclined structure, the bottle blank body can roll along the inclined surface, and a through empty groove is opened at the other end of the hopper. The bottom of the L-shaped support plate is fixedly connected to the top of the support frame, and one side of the hydraulic rod is fixedly connected to the L-shaped support plate. The hydraulic rod is used to push the push block to move horizontally, and one side of the push block is in conflict with the bottle blank body.

[0010] Preferably, the loading assembly also includes a pair of guide rails, which are symmetrically distributed on both sides of the hopper, the bottom of the guide rails is fixedly connected to the bottom wall of the hopper, the top of the guide rails is in conflict with the bottom of the bottle blank body, and a conveyor belt is provided at one end of the frame, the conveyor belt is used to convey the bottle blank body, one end of the guide rail is in contact with the conveyor belt on the conveyor belt, and a plurality of protrusions are fixedly connected to the periphery of the conveyor belt.

[0011] Preferably, the feeding assembly also includes an anti-slip mechanism, which includes a baffle, a folding rod, a push rod, a bolt and a pair of thrust springs. The baffle passes through the bottom wall of the hopper and is slidably connected thereto, one end of the bolt passes through the baffle and is fixedly connected to the hopper, the outer periphery of the bolt is slidably connected to the baffle, one end of the folding rod is fixedly connected to the baffle, the top of the other end of the folding rod is in conflict with the bottom of the push rod, the push rod is fixedly connected to the telescopic end of the hydraulic rod, one end of the thrust spring is fixedly connected to the bottom of the baffle, and the other end of the thrust spring is fixedly connected to the bottom of the hopper.

[0012] Preferably, the feeding assembly also includes a flipping mechanism, which includes a flipping plate and a pair of torsion springs, one end of the flipping plate is hinged to the bottom wall of the empty slot, one end of the torsion spring is fixedly connected to the bottom of the hopper, and the other end of the torsion spring is fixedly connected to the bottom of the flipping plate.

[0013] Preferably, it also includes a linkage assembly, which includes a threaded rod, a rotating shaft, a first gear and a pair of pulleys. One end of the threaded rod is fixedly connected to the push rod, and the threaded rod is used to drive the first gear to rotate. The rotating shaft is rotatably installed on the top of the support frame. The outer periphery of the rotating shaft is coaxially connected to the first gear and one of the pulleys, and the other pulley is coaxially connected to the outer periphery of the circular tube. The two pulleys are driven by a belt.

[0014] Preferably, the linkage assembly also includes a pair of bearing seats, a second gear, a ratchet, a plurality of pawls and a plurality of return springs. The bottom of the bearing seat is fixedly connected to the top of the L-shaped support plate. The second gear and the pawl are rotatably installed between the two bearing seats. The second gear is sleeved on the periphery of the pawl. The pawl is threadedly connected to the periphery of the threaded rod. A plurality of grooves are provided on the inner wall of the second gear. The pawl is rotatably installed in the groove. The second gear is meshed with the first gear. The return spring is installed in the groove. The return spring is used to provide thrust to the pawl.

[0015] Preferably, one end of the return spring is fixedly connected to the inner wall of the groove, the other end of the return spring is fixedly connected to one end of the pawl, and the diameter of the second gear is smaller than the diameter of the first gear.

[0016] Beneficial effects of the present invention:

[0017] 1. The present invention sleeves the bottle blank body on the periphery of the nozzle through the feeding assembly, and then rotates the shell to drive the telescopic rod and the nozzle to move, so that the bottle blank body rotates to the bottom and is immersed in the water tank. Whether there are bubbles emitting can determine whether there are cracks in the bottle blank body, thereby improving the molding effect and quality of the wide-mouth bottle. At the same time, the fan is operated to inject air into the bottle blank body through the nozzle, so that the internal air pressure is increased, the speed of gas overflowing from the cracks is accelerated, and the bubbles in the water are dense, which is convenient for observation. In addition, the detection error caused by the fact that some cracks are small and the air cannot overflow under normal pressure can be avoided, thereby further improving the processing quality of the wide-mouth bottle.

[0018] 2. When the telescopic rod drives the nozzle to rotate toward the bottom, one end of the nozzle of the present invention conflicts with the U-shaped limit rod. As the rotation continues, the telescopic rod is extended, so that the bottle body sinks to a deeper position in the water, increasing the water pressure on the bottle body, making the bubble detection more accurate, and further improving the processing quality of the wide-mouth bottle.

[0019] 3. In the present invention, when the telescopic end of the hydraulic rod pushes the push plate, the second gear is stationary. When the telescopic end of the hydraulic rod pulls the push plate to reset, the threaded transmission of the threaded rod and the pawl drives the ratchet to rotate. At the same time, the hook on the ratchet and the pawl interfere with each other, driving the second gear to rotate. The meshing transmission between the second gear and the first gear drives the detection assembly to rotate, so that the detection assembly is stationary during loading, and the loading assembly and the detection assembly move simultaneously after the loading is completed, which can ensure the continuity and smoothness of the loading detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 The three-dimensional structure of the present invention is shown in FIG. Figure 1 .

[0022] Figure 2 The three-dimensional structure of the present invention is shown in FIG. Figure 2 .

[0023] Figure 3 The three-dimensional structure of the present invention is shown in FIG. Figure 3 .

[0024] Figure 4 It is a schematic diagram of the frame structure of the present invention.

[0025] Figure 5 It is a schematic diagram of the structure of the detection component of the present invention.

[0026] Figure 6 It is a cross-sectional view of the telescopic rod structure of the present invention.

[0027] Figure 7 It is a disassembled diagram of the feeding component structure of the present invention.

[0028] Figure 8 The structure of the feeding assembly of the present invention is schematically shown in FIG. Figure 1 .

[0029] Fig. 9 The structure of the feeding assembly of the present invention is schematically shown in FIG. Figure 2 .

[0030] Fig.10 The structure of the feeding assembly of the present invention is schematically shown in FIG. Figure 3 .

[0031] Fig.11 The hopper structure of the present invention is viewed from above Figure 1 .

[0032] Fig.12 The hopper structure of the present invention is viewed from above Figure 2 .

[0033] Fig.13 It is a cross-sectional view of the second gear structure of the present invention.

[0034] In the figure:

[0035] 1. frame; 10. conveyor belt; 100. protrusion; 11. preform body;

[0036] 2. Detection assembly; 20. Shell; 21. Telescopic rod; 210. Sleeve; 211. T-shaped rod; 212. Tension spring; 22. Sprinkler; 23. Fan; 24. Water tank; 25. Rotating seat; 26. Round tube; 27. Air duct; 28. Hose; 29. ​​U-shaped limit rod;

[0037] 3. Loading assembly; 30. Support frame; 31. Hopper; 310. Empty slot; 32. L-shaped support plate; 33. Hydraulic rod; 34. Push block; 35. Guide rail;

[0038] 4. Anti-slip mechanism; 40. Baffle; 41. Folding rod; 42. Push rod; 43. Bolt; 44. Thrust spring;

[0039] 5. Flipping mechanism; 50. Flipping plate; 51. Torsion spring;

[0040] 6. linkage assembly; 60. threaded rod; 61. rotating shaft; 62. first gear; 63. pulley; 64. bearing seat; 65. second gear; 650. groove; 66. ratchet; 67. pawl; 68. return spring. DETAILED DESCRIPTION

[0041] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0042] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on this patent; in order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0043] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0044] In the description of the present invention, unless otherwise clearly specified and limited, if the term "connection" or the like appears to indicate the connection relationship between components, the term should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two components or the interaction relationship between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] like Figures 1 to 13 As shown:

[0046] A PET wide-mouth bottle blank processing technology includes the following steps: S1, stacking the injection-molded bottle blank body 11 on a conveyor belt 10 and conveying it to one side of a frame 1 for easy loading; S2, a loading component 3 is installed on the frame 1, which is used to sleeve the bottle blank body 11 on the periphery of a nozzle 22 to prepare for airtightness detection; S3, a detection component 2 is installed on the frame 1, and the bottle blank body 11 can be immersed in water, and gas is injected into the bottle blank body 11 at the same time. By observing whether bubbles emerge in the water, whether there are cracks in the bottle blank body 11 is detected, thereby improving the processing quality; S4, a linkage component 6 is installed on one side of the loading component 3, which is used to drive the detection component 2 and the loading component 3 to work alternately to ensure the continuity of the detection of multiple bottle blank bodies 11; S5, the bottle blank body 11 that has been tested is removed from the nozzle 22, and the qualified The bottle blank body 11 is placed in the blow molding machine for processing, and the unqualified bottle blank body 11 is placed in the recycling box for waste recycling. The bottle blank body 11 includes a frame 1 and a detection component 2. The detection component 2 includes a shell 20, multiple telescopic rods 21, multiple nozzles 22, a fan 23 and a water tank 24. The multiple telescopic rods 21 are distributed in a circle on the periphery of the shell 20. One end of the telescopic rod 21 is fixedly connected to the shell 20, and the other end of the telescopic rod 21 is fixedly connected to the periphery of the nozzle 22. One side of the nozzle 22 is plugged into the bottle blank body 11. A rubber ring for anti-slip sealing is fixedly connected to the periphery of the nozzle 22. When the bottle blank body 11 is sleeved on the periphery of the nozzle 22, the rubber ring is located between the inner wall of the bottle blank body 11 and the periphery of the nozzle 22, which plays a role of sealing and anti-slip, can prevent water from entering the bottle blank body 11, and can also prevent the internal air pressure of the bottle blank body 11 from increasing and ejecting the bottle blank body 11. The housing 20 can be vertically rotatably mounted on the frame 1, the outer periphery of the water tank 24 is fixedly connected to the frame 1, and the bottom of the fan 23 is fixedly connected to the top of the frame 1. The fan 23 is used to inject air into the bottle body 11 through the nozzle 22. The bottle body 11 is sleeved on the outer periphery of the nozzle 22 through the feeding assembly 3, and then the housing 20 is rotated to drive the telescopic rod 21 and the nozzle 22 to move, so that the bottle body 11 rotates toward the bottom and immerses in the water tank 24. By sinking the bottle body 11 into the water and observing whether bubbles emerge, it is possible to determine whether the bottle body 11 has cracks, thereby improving the molding effect and quality of the wide-mouth bottle. At the same time, the fan 23 is operated to inject air into the bottle body 11 through the nozzle 22, so that the internal air pressure increases, the speed of gas overflowing from the cracks is accelerated, and the bubbles in the water are dense, which is convenient for observation, and can avoid the detection error caused by the small cracks and the inability of air to overflow under normal pressure, further improving the processing quality of the wide-mouth bottle.

[0047] like Figures 1 to 6 As shown:

[0048] The telescopic rod 21 includes a sleeve 210, a T-shaped rod 211 and a tension spring 212. One end of the sleeve 210 is fixedly connected to the periphery of the shell 20, and the other end of the sleeve 210 is slidably connected to the periphery of one end of the T-shaped rod 211. The other end of the T-shaped rod 211 is fixedly connected to the periphery of the nozzle 22. One end of the tension spring 212 is fixedly connected to the inner wall of the sleeve 210, and the other end of the tension spring 212 is fixedly connected to the T-shaped rod 211. The detection component 2 also includes a U-shaped limit rod 29. One side of the U-shaped limit rod 29 is fixedly connected to the inner wall of the water tank 24, and the periphery of the U-shaped limit rod 29 conflicts with one side of the nozzle 22. When the telescopic rod 21 drives the nozzle 22 to rotate toward the bottom, one end of the nozzle 22 conflicts with the U-shaped limit rod 29. As the rotation continues, the nozzle 22 gradually moves away from the shell 20, the telescopic rod 21 is extended, and the tension spring 212 is stretched, so that the bottle body 11 sinks to a deeper position in the water, thereby increasing the water pressure on the bottle body 11, making the bubble detection more accurate, and further improving the processing quality of the wide-mouth bottle. When the nozzle 22 is separated from the U-shaped limit rod 29, the telescopic rod 21 retracts to restore its original length to facilitate the next feeding detection.

[0049] like Figures 1 to 6 As shown:

[0050] The detection assembly 2 also includes a rotating seat 25, a round tube 26, an air duct 27 and a plurality of hoses 28. The bottom of the rotating seat 25 is fixedly connected to the frame 1. The round tube 26 passes through the rotating seat 25 and is rotatably connected thereto. The round tube 26 is supported by the rotating seat 25, and the housing 20 is driven to rotate by the round tube 26, so that the housing 20 can be installed vertically rotatably. One end of the round tube 26 is fixedly connected to the housing 20, and the other end of the round tube 26 is rotatably connected to one end of the air duct 27. The air outlet of the fan 23 is connected to the inside of the housing 20 through the air duct 27 and the round tube 26, one end of the hose 28 is connected to the housing 20, and the other end of the hose 28 is connected to the nozzle 22. When the fan 23 is working, air is injected into the housing 20 through the air duct 27 and the round tube 26, and then injected into the inside of the bottle body 11 through the hose 28 and the nozzle 22, so as to achieve air blowing and pressurization.

[0051] like Figures 1 to 13 As shown:

[0052] It also includes a loading component 3, which includes a support frame 30, a hopper 31, an L-shaped support plate 32, a hydraulic rod 33 and a push block 34. The bottom of the support frame 30 is fixedly connected to the top of the frame body 1, the bottom of the hopper 31 is fixedly connected to the top of the support frame 30, the bottom wall of one end of the hopper 31 is an inclined structure, and the bottle blank body 11 can roll along the inclined surface, and a through empty groove 310 is opened at the other end of the hopper 31, the bottom of the L-shaped support plate 32 is fixedly connected to the top of the support frame 30, one side of the hydraulic rod 33 is fixedly connected to the L-shaped support plate 32, the hydraulic rod 33 is used to push the push block 34 to move horizontally, and one side of the push block 34 is in conflict with the bottle blank body 11. The preform body 11 is made to roll into the hopper 31 through the inclined surface and fall into the empty slot 310 at one end of the hopper 31. At this time, one side of the preform body 11 is aligned with the push block 34, and the other side is aligned with one of the nozzles 22. Then, the hydraulic rod 33 is operated to push the push block 34 to move horizontally, so that the preform body 11 is pushed out of the empty slot 310 and is sleeved on the periphery of the nozzle 22, thereby completing the loading.

[0053] like Figures 1 to 13 As shown:

[0054] The feeding assembly 3 further includes a pair of guide rails 35, the two guide rails 35 are symmetrically distributed on both sides of the hopper 31, the bottom of the guide rails 35 is fixedly connected to the bottom wall of the hopper 31, the top of the guide rails 35 is in conflict with the bottom of the bottle body 11, and a conveyor belt 10 is arranged at one end of the frame 1, and the conveyor belt 10 is used to convey the bottle body 11. One end of the guide rail 35 is in contact with the conveyor belt on the conveyor belt 10, and a plurality of protrusions 100 are fixedly connected to the outer periphery of the conveyor belt. The bottle body 11 is placed on the conveyor belt 10, and the conveyor belt 10 is operated to convey the bottle body 11 to one end of the hopper 31. The protrusions 100 on the conveyor belt 10 can prevent the bottle body 11 from rolling, and the bottle body 11 rolls into the hopper 31 along the guide rails 35. The guide rails 35 are used to keep the bottle body 11 level to prevent the bottle body 11 from offsetting from the nozzle 22.

[0055] like Figures 1 to 13 As shown:

[0056] The feeding assembly 3 also includes an anti-slip mechanism 4, which includes a baffle 40, a folding rod 41, a push rod 42, a bolt 43 and a pair of thrust springs 44. The baffle 40 passes through the bottom wall of the hopper 31 and is slidably connected thereto. One end of the bolt 43 passes through the baffle 40 and is fixedly connected to the hopper 31. The outer periphery of the bolt 43 is slidably connected to the baffle 40. One end of the folding rod 41 is fixedly connected to the baffle 40. The top of the other end of the folding rod 41 is in conflict with the bottom of the push rod 42. The push rod 42 is fixedly connected to the telescopic end of the hydraulic rod 33. One end of the thrust spring 44 is fixedly connected to the bottom of the baffle 40, and the other end of the thrust spring 44 is fixedly connected to the bottom of the hopper 31. When the hydraulic rod 33 pushes the preform body 11 to slide out of the empty slot 310, the push rod 42 moves horizontally, and the thrust spring 44 rebounds upward, pushing the baffle 40 to move upward to block the remaining preform bodies 11 in the hopper 31 to prevent them from rolling down and hindering feeding. When the preform body 11 is out of the empty slot 310, the hydraulic rod 33 is reset, the push rod 42 squeezes the folding rod 41 to move it downward, and the baffle 40 slides downward around the bolt 43 to the bottom of the hopper 31, and the remaining preform bodies 11 slide into the empty slot 310 to ensure the continuity of feeding.

[0057] like Figures 1 to 13 As shown:

[0058] The feeding assembly 3 further includes a flipping mechanism 5, which includes a flipping plate 50 and a pair of torsion springs 51. One end of the flipping plate 50 is hinged to the bottom wall of the empty slot 310, one end of the torsion spring 51 is fixedly connected to the bottom of the hopper 31, and the other end of the torsion spring 51 is fixedly connected to the bottom of the flipping plate 50. When the housing 20 rotates to drive the nozzle 22 to move downward, the bottle blank body 11 on the nozzle 22 presses the flipping plate 50 downward to rotate it toward the bottom, so that the bottle blank body 11 can smoothly leave the empty slot 310. After the bottle blank body 11 is separated from the flipping plate 50, the torsion spring 51 rebounds and drives the flipping plate 50 to reset, so that the moving distance of the bottle blank body 11 is shortened, the friction of the bottle blank body 11 can be reduced, and the space occupied by the equipment can be reduced.

[0059] like Figures 1 to 13 As shown:

[0060] The linkage assembly 6 is also included. The linkage assembly 6 includes a threaded rod 60, a rotating shaft 61, a first gear 62 and a pair of pulleys 63. One end of the threaded rod 60 is fixedly connected to the push rod 42. The threaded rod 60 is used to drive the first gear 62 to rotate. The rotating shaft 61 is rotatably installed on the top of the support frame 30. The outer periphery of the rotating shaft 61 is coaxially connected to the first gear 62 and one of the pulleys 63. The other pulley 63 is coaxially connected to the outer periphery of the round tube 26. The two pulleys 63 are driven by a belt. When the threaded rod 60 moves horizontally with the telescopic end of the hydraulic rod 33, the first gear 62 rotates, driving the rotating shaft 61 and one of the pulleys 63 to rotate. The belt transmission between the two pulleys 63 causes the round tube 26 to rotate, which can drive the nozzle 22 to move and detect multiple bottle blank bodies 11.

[0061] like Figures 1 to 13 As shown:

[0062] The linkage assembly 6 also includes a pair of bearing seats 64, a second gear 65, a ratchet 66, a plurality of pawls 67 and a plurality of return springs 68. The bottom of the bearing seat 64 is fixedly connected to the top of the L-shaped support plate 32. The second gear 65 and the pawl 67 are rotatably installed between the two bearing seats 64. The second gear 65 is sleeved on the outer periphery of the pawl 67. The pawl 67 is threadedly connected to the outer periphery of the threaded rod 60. A plurality of grooves 650 are provided on the inner wall of the second gear 65. The pawl 67 is rotatably installed in the groove 650. The second gear 65 is meshed with the first gear 62. The return spring 68 is installed in the groove 650. The return spring 68 is used to provide thrust to the pawl 67. When the telescopic end of the hydraulic rod 33 pushes the push plate, the ratchet 66 rotates and squeezes the pawl 67 to deflect it, and the reset spring 68 is stretched. At this time, the second gear 65 is stationary. When the telescopic end of the hydraulic rod 33 pulls the push plate to reset, the threaded transmission of the threaded rod 60 and the pawl 67 drives the ratchet 66 to rotate. At the same time, the pulling force provided by the reset spring 68 resets the pawl 67. The hook on the ratchet 66 and the pawl 67 conflict with each other, driving the second gear 65 to rotate, and through the meshing transmission between the second gear 65 and the first gear 62, the detection component 2 is driven to rotate, so that the detection component 2 is stationary during loading, and the loading component 3 and the detection component 2 move at the same time after the loading is completed, which can ensure the continuity and smoothness of the loading detection.

[0063] like Figures 1 to 13 As shown:

[0064] One end of the return spring 68 is fixedly connected to the inner wall of the groove 650, and the other end of the return spring 68 is fixedly connected to one end of the pawl 67. When the ratchet 66 squeezes the pawl 67, the return spring 68 is compressed. When the ratchet 66 and the pawl 67 are separated, the return spring 68 rebounds to provide thrust to reset the pawl 67. The diameter of the second gear 65 is smaller than the diameter of the first gear 62. As a result, the rotation speed of the round tube 26 is smaller than the rotation speed of the ratchet 66, so that the movement speed of the bottle blank body 11 is slower, reducing its entry speed into the water, avoiding splashing, and keeping the water surface calm, which is convenient for observing bubbles and improving detection accuracy.

[0065] It should be noted that the above specific implementations are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art should understand that various modifications, equivalent substitutions, changes, etc. can be made to the present invention. However, as long as these changes do not deviate from the spirit of the present invention, they should be within the scope of protection of the present invention. In addition, some terms used in the specification and claims of this application are not limiting, but are only for the convenience of clearly describing the positional relationship and function between the various components.

Claims

1. A PET wide-mouth bottle blank processing technology, characterized in that: The method comprises the following steps: S1, stacking the injection-molded preform bodies (11) on a conveyor belt (10) and transporting them to one side of the frame (1) for easy loading; S2. A loading assembly (3) is installed on the frame (1) for sleeve-connecting the bottle blank body (11) to the periphery of the nozzle (22) to prepare for the airtightness test; S3, the detection component (2) is installed on the frame (1), and the bottle blank body (11) can be immersed in water, and gas can be injected into the bottle blank body (11) at the same time, and whether there are bubbles in the water can be observed to detect whether there are cracks in the bottle blank body (11), thereby improving the processing quality; S4, a linkage assembly (6) is installed on one side of the feeding assembly (3) and is used to drive the detection assembly (2) and the feeding assembly (3) to work alternately, thereby ensuring the continuity of the detection of multiple preform bodies (11); S5, removing the bottle blank body (11) that has been inspected from the nozzle (22), placing the qualified bottle blank body (11) into the blow molding machine for processing, and placing the unqualified bottle blank body (11) into a recycling bin for waste recycling; The invention comprises a frame (1) and a detection assembly (2), wherein the detection assembly (2) comprises a shell (20), a plurality of telescopic rods (21), a plurality of nozzles (22), a fan (23) and a water tank (24), wherein the plurality of telescopic rods (21) are circumferentially distributed on the periphery of the shell (20), one end of the telescopic rod (21) is fixedly connected to the shell (20), the other end of the telescopic rod (21) is fixedly connected to the periphery of the nozzle (22), one side of the nozzle (22) is plug-fitted with the bottle blank body (11), a rubber ring for anti-slip sealing is fixedly connected to the periphery of the nozzle (22), the shell (20) is vertically rotatably mounted on the frame (1), the periphery of the water tank (24) is fixedly connected to the frame (1), the bottom of the fan (23) is fixedly connected to the top of the frame (1), and the fan (23) is used to inject air into the interior of the bottle blank body (11) through the nozzle (22); The feeding assembly (3) further comprises a feeding assembly (3), which comprises a support frame (30), a hopper (31), an L-shaped support plate (32), a hydraulic rod (33) and a push block (34); the bottom of the support frame (30) is fixedly connected to the top of the frame body (1); the bottom of the hopper (31) is fixedly connected to the top of the support frame (30); the bottom wall of one end of the hopper (31) is an inclined surface structure, and the bottle blank body (11) can roll along the inclined surface; the other end of the hopper (31) is provided with a through-going empty groove (310); the bottom of the L-shaped support plate (32) is fixedly connected to the top of the support frame (30); one side of the hydraulic rod (33) is fixedly connected to the L-shaped support plate (32); the hydraulic rod (33) is used to push the push block (34) to move horizontally; one side of the push block (34) is in conflict with the bottle blank body (11); The feeding assembly (3) further comprises an anti-slip mechanism (4), the anti-slip mechanism (4) comprising a baffle (40), a folding rod (41), a push rod (42), a bolt (43) and a pair of thrust springs (44), the baffle (40) passing through the bottom wall of the hopper (31) and being slidably connected thereto, one end of the bolt (43) passing through the baffle (40) and being fixedly connected to the hopper (31), the outer periphery of the bolt (43) being slidably connected to the baffle (40), one end of the folding rod (41) being fixedly connected to the baffle (40), the top of the other end of the folding rod (41) being in contact with the bottom of the push rod (42), the push rod (42) being fixedly connected to the telescopic end of the hydraulic rod (33), one end of the thrust spring (44) being fixedly connected to the bottom of the baffle (40), and the other end of the thrust spring (44) being fixedly connected to the bottom of the hopper (31); The invention also includes a linkage assembly (6), wherein the linkage assembly (6) includes a threaded rod (60), a rotating shaft (61), a first gear (62) and a pair of pulleys (63), wherein one end of the threaded rod (60) is fixedly connected to the push rod (42), the threaded rod (60) is used to drive the first gear (62) to rotate, the rotating shaft (61) is rotatably mounted on the top of the support frame (30), the outer periphery of the rotating shaft (61) is coaxially connected to the first gear (62) and one of the pulleys (63), the other pulley (63) is coaxially connected to the outer periphery of the circular tube (26), and the two pulleys (63) are driven by a belt. The linkage assembly (6) further comprises a pair of bearing seats (64), a second gear (65), a ratchet (66), a plurality of ratchet pawls (67) and a plurality of return springs (68). The bottom of the bearing seat (64) is fixedly connected to the top of the L-shaped support plate (32). The second gear (65) and the ratchet pawl (67) are rotatably mounted between the two bearing seats (64). The second gear (65) is sleeved on the outer periphery of the ratchet pawl (67). The ratchet pawl (67) is threadedly connected to the outer periphery of the threaded rod (60). The inner wall of the second gear (65) is provided with a plurality of grooves (650). The ratchet pawl (67) is rotatably mounted in the grooves (650). The second gear (65) is meshed with the first gear (62). The return spring (68) is mounted in the grooves (650). The return spring (68) is used to provide thrust to the ratchet pawl (67).

2. A PET wide-mouth bottle preform processing process according to claim 1, characterized in that: The telescopic rod (21) comprises a sleeve (210), a T-shaped rod (211) and a tension spring (212); one end of the sleeve (210) is fixedly connected to the periphery of the housing (20); the other end of the sleeve (210) is slidably connected to the periphery of one end of the T-shaped rod (211); the other end of the T-shaped rod (211) is fixedly connected to the periphery of the spray head (22); one end of the tension spring (212) is fixedly connected to the inner wall of the sleeve (210); the other end of the tension spring (212) is fixedly connected to the T-shaped rod (211); and the detection component (2) further comprises a U-shaped limit rod (29); one side of the U-shaped limit rod (29) is fixedly connected to the inner wall of the water tank (24); and the periphery of the U-shaped limit rod (29) is in contact with one side of the spray head (22).

3. A PET wide-mouth bottle blank processing process according to claim 1, characterized in that: The detection assembly (2) further comprises a rotating seat (25), a circular tube (26), an air duct (27) and a plurality of hoses (28); the bottom of the rotating seat (25) is fixedly connected to the frame (1); the circular tube (26) passes through the rotating seat (25) and is rotatably connected thereto; one end of the circular tube (26) is fixedly connected to the housing (20); the other end of the circular tube (26) is rotatably connected to one end of the air duct (27); the air outlet of the fan (23) is connected to the interior of the housing (20) through the air duct (27) and the circular tube (26); one end of the hose (28) is connected to the housing (20); and the other end of the hose (28) is connected to the nozzle (22).

4. A PET wide-mouth bottle preform processing process according to claim 1, characterized in that: The loading assembly (3) further comprises a pair of guide rails (35), the two guide rails (35) being symmetrically distributed on both sides of the hopper (31), the bottom of the guide rails (35) being fixedly connected to the bottom wall of the hopper (31), the top of the guide rails (35) being in contact with the bottom of the preform body (11), a conveyor belt (10) being arranged at one end of the frame (1), the conveyor belt (10) being used to convey the preform body (11), one end of the guide rail (35) being in contact with the conveyor belt on the conveyor belt (10), and a plurality of protrusions (100) being fixedly connected to the periphery of the conveyor belt.

5. A PET wide-mouth bottle preform processing process according to claim 4, characterized in that: The feeding assembly (3) further comprises a flipping mechanism (5), the flipping mechanism (5) comprising a flipping plate (50) and a pair of torsion springs (51), one end of the flipping plate (50) being hinged to the bottom wall of the empty slot (310), one end of the torsion spring (51) being fixedly connected to the bottom of the hopper (31), and the other end of the torsion spring (51) being fixedly connected to the bottom of the flipping plate (50).

6. A PET wide-mouth bottle preform processing process according to claim 1, characterized in that: One end of the return spring (68) is fixedly connected to the inner wall of the groove (650), and the other end of the return spring (68) is fixedly connected to one end of the pawl (67). The diameter of the second gear (65) is smaller than the diameter of the first gear (62).

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