Air leakage detection device for plastic bottle processing

Abstract

The utility model belongs to the technical field of gas leakage detection of plastic bottles, and particularly relates to a gas leakage detection device for processing plastic bottles, which is characterized in that a piston is arranged above a support table, the piston is provided with a plurality of output ends, the output ends of the piston are connected and communicated with a spray pipe, and one end of the spray pipe far away from the piston is connected and communicated with a bottle cap. A pressure sensor is arranged at the end, connected with the spray pipe, in the bottle cap. A to-be-detected plastic bottle is placed above the two rollers, the plastic bottle can be connected with a bottle cap through cooperation of movement of a push plate and rotation of the rollers, gas is injected into the plastic bottle through work of a piston, a control valve and a rotary spray pipe are closed, whether the internal pressure of the bottle changes or not is detected in the rotation process, a magnetic plate ascends, and the bottle cap is connected with the bottle cap. The push plate is clamped with the plastic bottle, the plastic bottle is separated from the bottle cap under the action of the telescopic sleeve and the roller, and gas leakage can be waited in the rotating process, so that a large amount of gas does not need to be injected for detecting gas leakage.

Description

TECHNICAL FIELD

[0001] The utility model belongs to plastic bottle air leakage detection technical field, especially relate to a kind of air leakage detection device for plastic bottle processing. BACKGROUND

[0002] For example, the Chinese patent with publication number CN213658203U discloses a plastic bottle air leakage detection device, which includes a conveyor belt and a base. The base is located at the bottom of the conveyor belt. A plurality of positioning mechanisms for placing plastic bottles are evenly arranged on the conveyor belt. A connecting piece is fixed to one side of the top end of the base and located at the middle part of the conveyor belt. A detection mechanism is arranged on the connecting piece. The utility model further seals the detection piece and the plastic bottle. Under the limiting action of the first and second limiting rods, the detection piece stops moving. The piston rod of the electric telescopic rod drives the piston to move downward, thereby increasing the pressure in the plastic bottle. If the pressure in the plastic bottle does not change after increasing, the plastic bottle has no air leakage. If the pressure in the plastic bottle decreases after increasing, the plastic bottle leaks air. The loudspeaker issues an alarm to prompt the staff.

[0003] This technical solution can detect air leakage in plastic bottles while sealing them. It is low in cost and high in practicality. However, when detecting air leakage, the device needs to inject a large amount of gas into the plastic bottle, which increases the pressure in the plastic bottle instantaneously to detect small air leakage points. This may cause deformation of the plastic bottle without air leakage. Utility model content

[0004] The utility model aims to solve the above technical problems and provides an air leakage detection device for plastic bottle processing, which can detect whether the plastic bottle leaks air under small gas pressure.

[0005] In view of this, the utility model provides a kind of air leakage detection device for plastic bottle processing, including support table, the upper portion of support table is provided with piston, piston has multiple output ends, the output end of piston is connected and penetrates and is connected with spout, the end of spout away from piston is connected and penetrates and is connected with bottle cap, the inside of bottle cap is provided with pressure sensor with spout connecting end, the middle part of spout is provided with control valve that opens and closes spout, the upper portion of support table is fixedly installed with power source that drives piston rotation, the outer ring of support table is provided with the feeding and discharging mechanism for the connection and separation of plastic bottle and bottle cap, the feeding and discharging mechanism includes support frame, support frame is fixedly installed with sleeve on the upper portion, magnetic plate is slid up and down in the inside of sleeve, electromagnetic plate is fixedly installed in the inside of sleeve and moves magnetic plate, support plate is fixedly installed on the upper portion of magnetic plate, two gyro wheels are rotatably connected on the two sides of support plate, the central shaft of one gyro wheel is fixedly connected with motor, motor is fixedly installed on the upper portion of support plate, telescopic sleeve is fixedly installed on the upper portion of magnetic plate, push plate is fixedly installed on the free end of telescopic sleeve, push plate is located between two gyro wheels.

[0006] Preferably, the upper portion of push plate is provided with half-ring gap, and the bottle opening of plastic bottle is sleeved in the inside of half-ring gap.

[0007] Preferably, the outer surface of piston is provided with air inlet hole, the outer surface of air inlet hole is fixedly installed with rotating ring sleeve, the free end of rotating ring sleeve is connected and penetrates air inlet pipe, and one-way valve is arranged in the middle part of air inlet pipe.

[0008] Preferably, the top end of piston rod of piston is fixedly installed with connecting plate, the bottom end of connecting plate is fixedly installed with magnetic sheet, the top end of piston is fixedly installed with electromagnetic ring, and piston and connecting plate are fixedly connected through reset spring.

[0009] Preferably, the upper portion of piston is fixedly installed with threaded column, the outer surface of threaded column is threadedly connected with threaded sleeve, and threaded sleeve is in contact with connecting plate.

[0010] Preferably, the number of threaded columns is two, and the two threaded columns are symmetrically arranged.

[0011] The utility model has the advantages that:

[0012] 1. The air leakage detection device for plastic bottle processing, the plastic bottle to be detected is placed above two rollers, the plastic bottle is connected with the bottle cap by moving the push plate to cooperate with the rotation of the roller, the gas is injected into the plastic bottle by the piston, the control valve is closed, the spray pipe is rotated, whether the pressure inside the bottle changes during the rotation is detected, the one that changes is paused above one set of rollers, the other that does not change is paused above another set of rollers, at this time the magnetic plate rises, the push plate is clamped with the plastic bottle, the separation of the plastic bottle and the bottle cap is realized under the action of the telescopic sleeve and the roller, the air leakage can be waited for to occur during the rotation, therefore a large amount of gas does not need to be injected to detect the air leakage.

[0013] 2. The air leakage detection device for plastic bottle processing, the piston rod top of the piston is fixedly installed with the connecting plate, the bottom end of the connecting plate is fixedly installed with the magnetic sheet, the top of the piston is fixedly installed with the electromagnetic ring, the piston and the connecting plate are fixedly connected through the reset spring, the magnetic sheet is attracted close to the electromagnetic ring to complete the piston action by the work of the electromagnetic ring, the displacement amount of the magnetic sheet is changed by the size of the power-on, and then different volume plastic bottles can be detected. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the overall structure schematic view of the utility model;

[0015] Figure 2 It is the piston connection schematic view in the utility model;

[0016] Figure 3 It is the spray pipe connection schematic view in the utility model;

[0017] Figure 4 It is the feeding and discharging mechanism schematic view in the utility model.

[0018] Marked in the figure indicates that:

[0019] 1, support table; 2, piston; 3, spray pipe; 4, bottle cap; 5, pressure sensor; 6, control valve; 7, power source; 8, feeding and discharging mechanism; 801, support frame; 802, sleeve; 803, magnetic plate; 804, electromagnetic plate; 805, support plate; 806, roller; 807, motor; 808, telescopic sleeve; 809, push plate; 9, gas inlet hole; 10, rotating ring sleeve; 11, gas inlet pipe; 12, one-way valve; 13, connecting plate; 14, magnetic sheet; 15, electromagnetic ring; 16, reset spring; 17, threaded column; 18, threaded sleeve. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings Figures 1-4 The application is further described in detail.

[0021] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not intended to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0022] The embodiment of the present application discloses a kind of for plastic bottle processing air leakage detection device, including support table 1, support table 1 top is provided with piston 2, piston 2 has multiple output ends, the output end of piston 2 is connected and penetrates nozzle 3, nozzle 3 is connected and penetrates bottle cap 4 away from piston 2 end, bottle cap 4 inside and nozzle 3 connection end are provided with pressure sensor 5, the middle part of nozzle 3 is provided with control valve 6 for opening and closing nozzle 3, the top of support table 1 is fixedly installed with power source 7 for driving piston 2 rotation, the bottom end of piston 2 is provided with support seat, the outer ring of support seat has gear ring, by such setting can drive piston relative support table 1 rotation, the outer ring of support table 1 is provided with feeding and discharging mechanism 8 for plastic bottle and bottle cap 4 connection and separation, feeding and discharging mechanism 8 includes support frame 801, support frame 801 top is fixedly installed with sleeve 802, sleeve 802 inside is slidably provided with magnetic plate 803, sleeve 802 inside is fixedly installed with electromagnetic plate 804 for moving magnetic plate 803, the top of magnetic plate 803 is fixedly installed with support plate 805, support plate 805 both sides are rotatably connected with gyro wheel 806, the central shaft of one gyro wheel 806 is fixedly connected with motor 807, motor 807 is fixedly installed on the top of support plate 805, the top of magnetic plate 803 is fixedly installed with telescopic sleeve 808, telescopic sleeve 808 free end is fixedly installed with push plate 809, push plate 809 is located between two gyro wheels 806.

[0023] In one embodiment, the top of push plate 809 is provided with a semicircular notch, the bottle mouth of plastic bottle is sleeved in the inside of semicircular notch, when plastic bottle needs to be separated from bottle cap 4, plastic bottle is sleeved in the inside of semicircular notch for separation, when plastic bottle needs to be connected with bottle cap 4, push plate 809 moves from back to front to push plastic bottle close to bottle cap 4.

[0024] In one embodiment, the outer surface of piston 2 is provided with air inlet hole 9, air inlet hole 9 outer surface is fixedly installed with rotating ring sleeve 10, rotating ring sleeve 10 free end is connected and penetrates air inlet pipe 11, the middle part of air inlet pipe 11 is provided with one-way valve 12, air inlet pipe 11 can be connected with sterile gas for testing, avoid impurities in air remaining in plastic bottle.

[0025] In one of the embodiments, the piston rod top end of the piston 2 is fixedly installed with a connecting plate 13, the bottom end of the connecting plate 13 is fixedly installed with a magnetic sheet 14, the top end of the piston 2 is fixedly installed with an electromagnetic ring 15, the piston 2 and the connecting plate 13 are fixedly connected through a reset spring 16, the magnetic sheet 14 can be attracted close to the electromagnetic ring 15 through the working of the electromagnetic ring 15, the piston action is completed, the displacement amount of the magnetic sheet 14 can be changed through the size of the power supply, and then the plastic bottles of different volumes can be detected.

[0026] In one of the embodiments, the upper of the piston 2 is fixedly installed with a threaded column 17, the outer surface of the threaded column 17 is threadedly connected with a threaded sleeve 18, the threaded sleeve 18 is in contact with the connecting plate 13, through such a setting, the maximum displacement amount of the connecting plate 13 can be limited, so that the constant gas entering the plastic bottle can be maintained.

[0027] In one of the embodiments, the number of the threaded columns 17 is two, the two threaded columns 17 are symmetrically arranged, through the symmetric arrangement of the threaded columns 17, the uniform force of the connecting plate 13 can be ensured, and the inclination due to extrusion can be avoided.

[0028] In use, the plastic bottle to be detected is placed above the two rollers 806, the plastic bottle is connected with the bottle cap 4 through the rotation of the rollers 806 moved by the push plate 809, the gas is injected into the plastic bottle through the working of the piston 2 and the control valve 6 is closed, the rotating nozzle 3, in the rotating process, whether the internal pressure of the bottle changes is detected, the change is paused above one of the rollers 806, and the change is paused above the other roller 806, at this time, the magnetic plate 803 rises, the push plate 809 is clamped with the plastic bottle, and the separation of the plastic bottle and the bottle cap 4 is realized under the action of the telescopic sleeve 808 and the rollers 806, in the rotating process, the leakage can be waited to occur, so that a large amount of gas does not need to be injected to detect the leakage.

[0029] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above embodiments, the above embodiments and the description in the specification are only preferred examples of the utility model, and are not used to limit the utility model, various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A device for detecting air leaks in the processing of plastic bottles, comprising a support table (1), characterized in that, The upper part of the support table (1) is provided with a piston (2), the piston (2) has a plurality of output ends, the output end of the piston (2) is connected and penetrates the spray pipe (3), the end of the spray pipe (3) away from the piston (2) is connected and penetrates the bottle cap (4), the inside of the bottle cap (4) is provided with a pressure sensor (5) connected with the spray pipe (3), and the middle part of the spray pipe (3) is provided with a control valve (6) for opening and closing the spray pipe (3); The upper part of the support table (1) is provided with a piston (2), the piston (2) has a plurality of output ends, the output end of the piston (2) is connected and penetrates the spray pipe (3), the end of the spray pipe (3) away from the piston (2) is connected and penetrates the bottle cap (4), the inside of the bottle cap (4) is provided with a pressure sensor (5) connected with the spray pipe (3), and the middle part of the spray pipe (3) is provided with a control valve (6) for opening and closing the spray pipe (3); The upper part of the support table (1) is provided with a piston (2), the piston (2) has a plurality of output ends, the output end of the piston (2) is connected and penetrates the spray pipe (3), the end of the spray pipe (3) away from the piston (2) is connected and penetrates the bottle cap (4), the inside of the bottle cap (4) is provided with a pressure sensor (5) connected with the spray pipe (3), and the middle part of the spray pipe (3) is provided with a control valve (6) for opening and closing the spray pipe (3); 2. The air leak detection device for plastic bottle processing according to claim 1, characterized in that: The upper part of the support table (1) is provided with a piston (2), the piston (2) has a plurality of output ends, the output end of the piston (2) is connected and penetrates the spray pipe (3), the end of the spray pipe (3) away from the piston (2) is connected and penetrates the bottle cap (4), the inside of the bottle cap (4) is provided with a pressure sensor (5) connected with the spray pipe (3), and the middle part of the spray pipe (3) is provided with a control valve (6) for opening and closing the spray pipe (3); 3. The air leak detection device for plastic bottle processing of claim 1, wherein: The upper part of the support table (1) is provided with a piston (2), the piston (2) has a plurality of output ends, the output end of the piston (2) is connected and penetrates the spray pipe (3), the end of the spray pipe (3) away from the piston (2) is connected and penetrates the bottle cap (4), the inside of the bottle cap (4) is provided with a pressure sensor (5) connected with the spray pipe (3), and the middle part of the spray pipe (3) is provided with a control valve (6) for opening and closing the spray pipe (3); 4. The air leak detection device for plastic bottle processing of claim 1, wherein: The upper part of the support table (1) is provided with a piston (2), the piston (2) has a plurality of output ends, the output end of the piston (2) is connected and penetrates the spray pipe (3), the end of the spray pipe (3) away from the piston (2) is connected and penetrates the bottle cap (4), the inside of the bottle cap (4) is provided with a pressure sensor (5) connected with the spray pipe (3), and the middle part of the spray pipe (3) is provided with a control valve (6) for opening and closing the spray pipe (3); 5. The apparatus for detecting a defective plastic bottle according to claim 4, wherein: The upper part of the support table (1) is provided with a piston (2), the piston (2) has a plurality of output ends, the output end of the piston (2) is connected and penetrates the spray pipe (3), the end of the spray pipe (3) away from the piston (2) is connected and penetrates the bottle cap (4), the inside of the bottle cap (4) is provided with a pressure sensor (5) connected with the spray pipe (3), and the middle part of the spray pipe (3) is provided with a control valve (6) for opening and closing the spray pipe (3); 6. The air leak detection device for plastic bottle processing of claim 5, wherein: ​

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