A flaw detection device for blow molding and setting of disposable tableware

Abstract

The application discloses a kind of flaw detection devices for disposable tableware blow molding setting, the present application relates to tableware flaw detection technical field, including: rack, the rack has upper top ring and lower bottom ring, and pneumatic assembly is arranged on the lower bottom ring of rack, and lifting rod is connected between lower bottom ring and upper top ring.Lifting. The flaw detection device for disposable tableware blow molding setting, by the first valve in the state of opening, air pump is started again, air is guided under the cooperation of one-way valve, hose, rubber ball, collecting pipe and straight pipe by second swan neck pipe, the crack position of plastic cup can be inspected, the air inside plastic cup is reversed by the mutual cooperation between second mechanism, collecting pipe, straight pipe and rubber plug, by observing whether plastic cup occurs micro shrinkage deformation, and the position of disinfectant being absorbed into plastic cup through crack, the position of crack can be secondly judged and marked.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tableware flaw detection, in particular to a flaw detection device for blow molding and shaping of disposable tableware. BACKGROUND

[0002] Disposable tableware is an important catering product and is widely used, especially disposable plastic cups after blow molding and shaping. With the development of society, customers have higher and higher requirements for the appearance and use safety of disposable tableware, and cracks on the plastic cup body are not allowed, foreign matter residues in the cup body are not allowed, and cup mouth deformation is not allowed. Now a device is needed to detect disposable tableware after blow molding and shaping, to improve the flaw detection effect of plastic cups in disposable tableware and improve the production quality of disposable plastic cups.

[0003] The existing flaw detection device for blow molding and shaping of disposable tableware only relies on manual observation or camera monitoring and capturing and comparison, and it is difficult to detect whether there are cracks on the surface of the plastic cup, it is impossible to detect the specific position of the micro cracks, and it is impossible to directly judge whether the cup mouth is flat or whether there is cup mouth deformation. SUMMARY

[0004] To solve the above technical problems, the present application provides a flaw detection device for blow molding and shaping of disposable tableware, which comprises a rack having an upper top ring and a lower bottom ring, and a pneumatic assembly arranged on the lower bottom ring of the rack, a lifting rod being connected between the lower bottom ring and the upper top ring, a detection assembly being installed on the upper end of the upper top ring, a plastic cup being installed on the upper end of the detection assembly, and a control mechanism being installed on the lower end of the detection assembly. A lifting cylinder is arranged on the rear side of the rack, the lifting cylinder has a bottom plate, and a motor is arranged on the upper end of the lifting cylinder, the output end of the motor is fixedly connected with a hanging plate, a suction and hanging mechanism is installed on the front end of the hanging plate through a screw thread, the flaw detection device for blow molding and shaping of disposable tableware has a detection assembly, the detection assembly comprises a tray, the tray is combined and installed on the upper top ring of the rack, a convex pipe is fixedly connected to the upper end of the tray, a guide mechanism is inserted into the upper end of the convex pipe, a sleeve is fixedly connected to the lower end of the tray, a rubber plug is fixedly connected to the inner wall of the sleeve, a rubber sleeve is fixedly connected to the middle part of the rubber plug, a left inlet pipe is fixedly connected to one side of the bottom of the tray, and a right outlet pipe is fixedly connected to the other side of the bottom of the tray.

[0005] The control mechanism comprises a collecting pipe, a straight pipe is fixedly connected to the upper end of the collecting pipe, a first mechanism is fixedly connected to the left side of the lower end of the collecting pipe, a second mechanism is fixedly connected to the right side of the lower end of the collecting pipe, a third goose neck pipe is fixedly connected to the free end of the second mechanism, a second valve is arranged on the surface of the end of the second mechanism away from the third goose neck pipe, and the straight pipe is insertedly connected with the rubber plug through the rubber sleeve.

[0006] Preferably, the pneumatic assembly comprises a gas pump fixedly installed on the lower bottom ring of the rack, the surface of the gas pump is fixedly connected with the exhaust pipe, and the side of the gas pump is fixedly connected with the first air suction pipe, and the surface of the first air suction pipe is fixedly connected with the second air suction pipe.

[0007] Preferably, the suction mechanism comprises a gas guide disc, the gas guide disc is threadedly installed with the lifting plate through a lead screw, and at least three air rods are fixedly installed at the bottom of the gas guide disc.

[0008] Preferably, a waste liquid port is arranged at the position where the top of the right outlet pipe coincides with the tray, the waste liquid port is used for collecting waste disinfectant, a supply block is arranged on the wall ring of the tray, the upper end of the left inlet pipe penetrates through the tray and is connected with the inner cavity of the supply block in communication, and the left inlet pipe and the right outlet pipe are both threadedly installed with a nut and a gasket.

[0009] Preferably, the guide mechanism comprises a double-leg frame, the lower end of the double-leg frame is inserted into the protruding pipe, the upper end of the double-leg frame is fixedly connected with a hoop ring, and a ball joint pipe is clamped above the double-leg frame, the surface of the ball joint pipe is fixedly connected with a spray head, and the bottom of the ball joint pipe is fixedly connected with a plug.

[0010] Preferably, the surface of the ball joint pipe is provided with an annular groove, the ball joint pipe is clamped and fixedly installed with the double-leg frame through cooperation of the annular groove and the hoop ring, and the surface of the plug is fixedly connected with a clamping ring.

[0011] Preferably, the left inlet pipe is used for conveying disinfectant, and the supply block is used for conveying disinfectant to the inside of the tray.

[0012] Preferably, the first mechanism comprises a hose, the hose is fixedly connected at the bottom of the collecting pipe, one end of the hose away from the collecting pipe is fixedly connected with a one-way valve, the one-way valve away from the hose is fixedly connected with a second goose neck pipe, the surface of the hose is fixedly connected with a spherical shell, and the end of the hose close to the collecting pipe is provided with a first valve.

[0013] Preferably, one end of the hose away from the one-way valve is fixedly connected with a rubber ball, the spherical shell is wrapped outside the rubber ball, and at least two spiral compression springs are symmetrically connected on the inner wall of the spherical shell.

[0014] Preferably, the free end of the second mechanism, the second goose neck pipe and the first goose neck pipe are all fixedly connected with a quick connector.

[0015] The application provides a flaw detection device for blow molding and shaping of disposable tableware.

[0016] 1. This defect detection device for blow molding of disposable tableware, with the first valve in the open state, starts the air pump again, and slowly sends a large amount of air into the plastic cup through the second gooseneck tube through the one-way valve, hose, rubber ball, collection pipe and straight pipe. The disinfectant is evenly sprinkled on the surface of the plastic cup, and the location of the disinfectant on the surface of the plastic cup is observed. In combination with the sound of air leakage around the plastic cup, the crack location of the plastic cup can be detected, which can provide a reference for the return inspection of the production process of the plastic cup. Based on the position investigation, unplug the second gooseneck from the exhaust pipe, close the first valve, plug the third gooseneck into the first exhaust pipe, open the second valve, start the air pump for a period of time, and through the cooperation between the second mechanism, the collecting pipe, the straight pipe and the rubber plug, the air inside the plastic cup can be sucked away in reverse. By observing whether the plastic cup undergoes micro-shrinkage and deformation, and the position where the disinfectant is sucked into the plastic cup through the crack, the position of the crack can be secondary determined and marked, and the result of the previous crack detection operation can be checked and the crack position mark calibrated.

[0017] 2. The defect detection device for blow molding of disposable tableware is configured by unplugging the third gooseneck tube connected to the first exhaust pipe, closing the first valve and the second valve, briefly starting the air pump to blow a certain volume of air into the second gooseneck tube, storing the air with a rubber ball, plugging a straight-through tube into the plug, and releasing the air by opening the first valve. This gives the plastic cup a horizontal thrust inside the cup body, and detects whether the cup rim has defects by observing whether the plastic cup can slide smoothly in the tray, thereby realizing the control mechanism's detection function for cup rim defects.

[0018] 3. The defect detection device for blow molding of disposable tableware switches whether the second gooseneck tube and the third gooseneck tube are installed on the air pump, controls the opening and closing states of the first valve and the second valve, and combines the closed environment provided by the detection component, rubber stopper, and disinfectant. The control mechanism can detect the position of surface cracks in the plastic cup, the flatness of the cup mouth, and the smooth cleaning of foreign objects inside the cup body. Through a simple structure and different operation and installation methods, multiple detection functions are realized, thereby improving the detection device's ability to detect defects in plastic cups. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the external structure of a defect detection device for blow molding of disposable tableware according to the present invention;

[0020] Figure 2 It is a structural schematic diagram of the lifting rod of the present invention;

[0021] Figure 3 This is a schematic structural diagram of the lifting cylinder of the present invention;

[0022] Figure 4 Figure 1 is a schematic diagram of the structure of the air guide disc of the present application;

[0023] Figure 5 Figure 2 is a schematic diagram of the structure of the tray of the present application;

[0024] Figure 6 Figure 3 is a schematic diagram of the structure of the double-leg bracket of the present application;

[0025] Figure 7 Figure 4 is a schematic diagram of the structure of the rubber plug of the present application;

[0026] Figure 8 Figure 5 is a schematic diagram of the structure of the male pipe of the present application;

[0027] Figure 9 Figure 6 is a schematic diagram of the structure of the collection pipe of the present application;

[0028] Figure 10 Figure 7 is a schematic diagram of the structure of the hose of the present application;

[0029] Figure 11 Figure 8 is a schematic diagram of the structure of the second mechanism of the present application.

[0030] In the figure: 1, the rack; 2, the air component; 21, the air pump; 22, the exhaust pipe; 23, the first air suction pipe; 24, the second air suction pipe; 3, the lifting air cylinder; 4, the suction and lifting mechanism; 41, the air guide disc; 42, the air rod; 43, the first gooseneck pipe; 5, the detection component; 51, the tray; 52, the male pipe; 53, the guide mechanism; 531, the double-leg bracket; 532, the hoop; 533, the ball joint pipe; 534, the spray head; 535, the plug; 54, the left inlet pipe; 55, the supply block; 56, the waste liquid outlet; 57, the sleeve; 58, the rubber plug; 59, the right outlet pipe; 6, the plastic cup; 7, the control mechanism; 71, the collection pipe; 72, the straight-through pipe; 73, the first mechanism; 731, the hose; 732, the one-way valve; 733, the second gooseneck pipe; 734, the rubber ball; 735, the ball shell; 736, the spiral compression spring; 737, the first valve; 74, the second mechanism; 75, the third gooseneck pipe; 76, the second valve; 8, the lifting rod; 9, the motor. DETAILED DESCRIPTION

[0031] Example 1

[0032] As Figures 1-11As shown, the present application provides a technical scheme: a kind of flaw detection device for disposable tableware blow molding setting, comprising: gantry 1, the gantry 1 with upper top ring and lower bottom ring, and pneumatic assembly 2 is arranged on the lower bottom ring of gantry 1, lifting rod 8 is connected between lower bottom ring and upper top ring, detection assembly 5 is installed on the upper end of upper top ring, plastic cup 6 is installed on the upper end of detection assembly 5, control mechanism 7 is installed on the lower end of detection assembly 5;Lifting cylinder 3 is arranged at the rear side of gantry 1, the lifting cylinder 3 has bottom plate, and motor 9 is arranged on the upper end of lifting cylinder 3, the output end of motor 9 is fixedly connected with hanging plate, suction lifting mechanism 4 is installed on the front end of hanging plate by screw thread;The flaw detection device for disposable tableware blow molding setting, detection assembly 5, detection assembly 5 includes tray 51, and tray 51 is combinedly installed on the upper top ring of gantry 1, the upper end of tray 51 is fixedly connected with lug pipe 52, guide mechanism 53 is inserted in the upper end of lug pipe 52, sleeve 57 is fixedly connected on the lower end of tray 51, rubber plug 58 is fixedly connected on the inner wall of sleeve 57, rubber plug 58 is fixedly connected with rubber sleeve in the middle, left inlet pipe 54 is fixedly connected on one side of the bottom of tray 51, right outlet pipe 59 is fixedly connected on the other side of the bottom of tray 51;

[0033] Control mechanism 7, control mechanism 7 includes collection pipe 71, straight pipe 72 is fixedly connected on the upper end of collection pipe 71, and first mechanism 73 is fixedly connected on the left side of the lower end of collection pipe 71, second mechanism 74 is fixedly connected on the right side of the lower end of collection pipe 71, third goose neck pipe 75 is fixedly connected on the free end of second mechanism 74, and second valve 76 is arranged on the surface of the end of second mechanism 74 away from third goose neck pipe 75, and straight pipe 72 is insertedly connected with rubber plug 58 through rubber sleeve.

[0034] When using, the detection device is integrally installed on the side of conveying belt, wherein plastic cup 6 is inverted on the conveying belt for conveying;And before use, first goose neck pipe 43 is inserted with second suction pipe 24 through quick connector;Lifting cylinder 3 drives motor 9 to rise, and then motor 9 is started, suction lifting mechanism 4 is driven by the hanging plate installed on the output end, and rotates to the top of conveying belt, plastic cup 6 on the conveying belt is transferred to the middle position of tray 51 by the back stroke cooperation of pneumatic assembly 2, lifting cylinder 3, motor 9 and suction lifting mechanism 4, so that plastic cup 6 is inverted on the top middle position of tray 51;

[0035] The amount of disinfectant is added to the inside of the tray 51 through the cooperation of the left inlet pipe 54 and the supply block 55, until the disinfectant submerges the cup edge of the plastic cup 6, and ensures that the liquid level of the disinfectant is always lower than the wall ring height of the tray 51. On the premise that the plastic cup 6 is flawless, the inside of the plastic cup 6 is in a sealed state at this time. The second goose neck pipe 733 is inserted on the exhaust pipe 22, the first valve 737 and the second valve 76 are closed, and a certain volume of air is blown into the inside of the second goose neck pipe 733 by starting the air pump 21 for a short time. Under the cooperation of the expansion and extrusion of the rubber ball 734, the inside of the plastic cup 6 is given a burst of air, which can impact the foreign matter remaining in the inside of the plastic cup 6 into the disinfectant, realizing the cleaning function of the control mechanism 7 to the inside of the plastic cup 6. The air pump 21 is started again, and a large amount of air is slowly sent into the inside of the plastic cup 6 through the cooperation of the one-way valve 732, the hose 731, the rubber ball 734, the collecting pipe 71 and the straight pipe 72 guided by the second goose neck pipe 733. Whether there is a crack in the plastic cup 6 is judged by listening to whether there is a hissing sound around the plastic cup 6. By pulling out the third goose neck pipe 75 inserted on the first air pipe 23, and closing the first valve 737 and the second valve 76, a certain volume of air is blown into the inside of the second goose neck pipe 733 by starting the air pump 21 for a short time. Through the one-way guidance of the air flow by the one-way valve 732, a horizontal thrust is given to the plastic cup 6 in the cup body. Whether the cup edge of the plastic cup 6 is flawless is judged by observing whether the plastic cup 6 can smoothly slide in the tray 51. Through the above operations, the detection device detects whether the cup edge of the plastic cup 6 is horizontal and whether the surface has a slight crack. The foreign matter on the inner wall of the cup body can be removed, which plays a role in cleaning the inner wall of the cup body.

[0036] Embodiment 2

[0037] Please refer to Figure 1 , Figure 2 and Figure 4 , the pneumatic assembly 2 includes an air pump 21, the air pump 21 is fixedly installed on the lower bottom ring of the rack 1, the surface of the air pump 21 is fixedly connected with the exhaust pipe 22, and the side surface of the air pump 21 is fixedly connected with the first air pipe 23. The surface of the first air pipe 23 is fixedly connected with the second air pipe 24. The suction and lifting mechanism 4 includes a gas guide disc 41, the gas guide disc 41 is screw installed with the lifting plate through a lead screw, at least three air rods 42 are fixedly installed on the bottom of the gas guide disc 41, and the top of the gas guide disc 41 is fixedly connected with the first goose neck pipe 43.

[0038] In use, the air rod 42 can be provided with suction force through the cooperation between the pneumatic assembly 2 and the suction and lifting mechanism 4, the plastic cup 6 can be conveniently sucked and adsorbed from the conveying belt to the tray 51 by the motor 9 driving the suction and lifting mechanism 4, and the cooperation of the lifting cylinder 3 and the motor 9 in embodiment 1 can uniformly adsorb and place the plastic cups 6 with different cup body heights and different cup bottom sizes.

[0039] Embodiment 3

[0040] Please refer to Figures 9-11 As shown, the control mechanism 7 comprises a collecting pipe 71, a straight pipe 72 fixedly connected to the upper end of the collecting pipe 71, a first mechanism 73 fixedly connected to the left side of the lower end of the collecting pipe 71, a second mechanism 74 fixedly connected to the right side of the lower end of the collecting pipe 71, a third goose neck pipe 75 fixedly connected to the free end of the second mechanism 74, and a second valve 76 arranged on the surface of the end of the second mechanism 74 away from the third goose neck pipe 75;

[0041] The first mechanism 73 comprises a hose 731 fixedly connected to the bottom of the collecting pipe 71, a one-way valve 732 fixedly connected to the end of the hose 731 away from the collecting pipe 71, a second goose neck pipe 733 fixedly connected to the end of the one-way valve 732 away from the hose 731, and a spherical shell 735 fixedly connected to the surface of the hose 731.

[0042] The end of the hose 731 away from the one-way valve 732 is fixedly connected to a rubber ball 734, and the spherical shell 735 is wrapped outside the rubber ball 734, and at least two spiral compression springs 736 are symmetrically connected to the inner wall of the spherical shell 735.

[0043] The free ends of the second mechanism 74, the second goose neck pipe 733 and the first goose neck pipe 43 are fixedly connected with quick connectors.

[0044] In use, the second goose neck pipe is inserted into the exhaust pipe, and the first valve and the second valve are closed. At this time, the rim of the cup of the plastic cup is submerged in the disinfectant liquid. Under the premise that the plastic cup is flawless, the inside of the plastic cup is in a sealed state at this time. A certain volume of air is blown into the second goose neck pipe for a short time by starting the air pump. The one-way valve guides the airflow in one direction, so that the airflow is guided to be stored in the rubber ball, and the rubber ball is inflated at this time, and the spiral compression spring is deformed by being pressed towards the inner wall of the spherical shell.

[0045] At this time, the initial position of the straight pipe is that the rubber plug is inserted and connected with the rubber sleeve, and the air outlet is located directly below the plug.

[0046] At this time, the first valve is opened to release the air accumulated inside the rubber ball. By the pressing action of the spiral compression spring, the air is accelerated to be discharged from the straight pipe. The bottom of the plug is funnel-shaped, which can uniformly disperse the accelerated air into a circular shape and guide it upwards. The accelerated air is further circularly diffused to the surrounding along the curved surface of the ball joint pipe. The accelerated air sequentially impacts the cup wall from the cup bottom, and then blows towards the disinfectant liquid inside the cup rim. Through the above operation, one stream of accelerated air can impact the foreign matter remaining in the plastic cup into the disinfectant liquid, realizing the cleaning function of the control mechanism on the inside of the plastic cup.

[0047] When the first valve is in the open state, the air pump is started again, and air is slowly sent into the plastic cup through the guiding cooperation of the second gooseneck pipe, the one-way valve, the hose, the rubber ball, the collecting pipe and the straight pipe;

[0048] The liquid seal of the cup mouth is sealed with disinfectant. After the plastic cup is filled with air, and before the cup mouth is separated from the liquid surface of the disinfectant, carefully listen to whether there is a hissing sound of air leakage around the plastic cup. If the air leakage sound occurs, it is judged that there is a crack in the local plastic cup. Then, through further operation: evenly sprinkle disinfectant on the surface of the plastic cup, and observe the position of the disinfectant blown away or splashed on the surface of the plastic cup, the crack position of the plastic cup can be detected.

[0049] The third gooseneck pipe inserted in the first air suction pipe is pulled out, and the first valve and the second valve are closed. A certain volume of air is blown into the second gooseneck pipe by starting the air pump for a short time. The one-way valve guides the airflow in one direction, so that the airflow is guided and stored in the rubber ball, and the rubber ball is expanded at this time and deforms the spiral compression spring by pressing the inner wall of the ball shell;

[0050] At this time, the straight pipe is pushed upward by holding the collecting pipe, so that the upper end of the straight pipe is wrapped around the plug, and the clasp fixedly connected on the surface of the plug is clamped in the straight pipe to increase the tightness of the plug and the straight pipe, preventing the accelerated air from being blown away.

[0051] At this time, the first valve is opened to release the air accumulated in the rubber ball. The air is accelerated out of the straight pipe by the extrusion of the spiral compression spring, and is guided by the plug, the ball joint pipe and the nozzle to be a horizontal accelerated airflow in the plastic cup. The horizontal accelerated airflow gives the plastic cup a horizontal thrust. Since the cup mouth is tightly adsorbed in the tray under the liquid seal of the disinfectant;

[0052] When the plastic cup can smoothly slide in the tray, it is proved that the cup mouth of the plastic cup is flat and defect-free.

[0053] When the plastic cup cannot smoothly slide in the tray, but appears in other states of non-stable sliding, it is determined that the plastic cup is a product with defects in the cup mouth.

[0054] Through the above-mentioned way, the detection function of the control mechanism on whether the plastic cup has defects in the cup mouth is realized.

[0055] Example 4

[0056] Combine examples 1-3, and refer to Figures 5-8As shown, the detection assembly 5, the detection assembly 5 includes a tray 51, the tray 51 is combinedly installed on the upper top ring of the rack 1, the upper end of the tray 51 is fixedly connected with a flange pipe 52, the upper end of the flange pipe 52 is inserted with a guide mechanism 53, the lower end of the tray 51 is fixedly connected with a sleeve 57, the inner wall of the sleeve 57 is fixedly connected with a rubber plug 58, the middle part of the rubber plug 58 is fixedly connected with a rubber sleeve, one side of the bottom of the tray 51 is fixedly connected with a left inlet pipe 54, the other side of the bottom of the tray 51 is fixedly connected with a right outlet pipe 59;

[0057] The right outlet pipe 59 is provided with a waste liquid port 56 at the position coinciding with the tray 51, the waste liquid port 56 is used for collecting waste disinfectant, the wall ring of the tray 51 is provided with a supply block 55, the upper end of the left inlet pipe 54 penetrates the tray 51 and is connected with the inner cavity of the supply block 55, the left inlet pipe 54 and the right outlet pipe 59 are both threaded with nuts and gaskets, and the tray 51 is combinedly installed on the upper top ring of the rack 1 through the nuts and gaskets on the left inlet pipe 54 and the right outlet pipe 59;

[0058] The guide mechanism 53 includes a double-leg stand 531, the lower end of the double-leg stand 531 is inserted on the flange pipe 52, the upper end of the double-leg stand 531 is fixedly connected with a hoop 532, and the double-leg stand 531 is clamped with a ball joint pipe 533 above, the surface of the ball joint pipe 533 is fixedly connected with a spray head 534, the bottom of the ball joint pipe 533 is fixedly connected with a plug 535, the bottom of the plug 535 is funnel-shaped, the surface of the ball joint pipe 533 is provided with a ring groove, the ball joint pipe 533 is clamped and fixedly installed with the double-leg stand 531 through the cooperation of the ring groove and the hoop 532, and the surface of the plug 535 is fixedly connected with a clamping ring, the left inlet pipe 54 is used for conveying disinfectant, and the supply block 55 is used for conveying disinfectant to the inside of the tray 51.

[0059] In use, by placing the plastic cup 6 upside down in the tray 51, the left inlet pipe 54 and the supply block 55 are used to add an appropriate amount of disinfectant to the inside of the tray 51, so that the foreign matter on the inner wall of the cup body is cleaned by the accelerated air, at the same time, a liquid sealing environment is provided for the port of the cup body, and a sterilizable liquid environment is provided for the collection of foreign matter, which facilitates the mixing and collection of foreign matter in disinfectant, prevents the secondary reflux of foreign matter, and after the detection of the defect of the plastic cup 6 by the control mechanism 7, the disinfectant carrying foreign matter can be discharged from the right outlet pipe 59 through the waste liquid port 56, new disinfectant can be re-injected into the inside of the tray 51 through the left inlet pipe 54, and the disinfectant re-injected can flush the foreign matter residues in the tray 51 into the waste liquid port 56, and provide a clean disinfectant for the next plastic cup 6 placed upside down on the tray 51.

[0060] Working principle: the detection device is used in cooperation with the conveying belt, and is integrally installed on one side of the conveying belt, wherein the plastic cup 6 is placed upside down on the conveying belt for conveying; and before use, the first goose neck pipe 43 is inserted with the second air suction pipe 24 through the quick connector;

[0061] First, the lifting cylinder 3 drives the motor 9 to rise, and then the motor 9 is started to drive the suction and lifting mechanism 4 through the lifting plate installed on the output end to rotate to the top of the conveying belt, and the plastic cup 6 on the conveying belt is transferred to the middle position of the tray 51 through the cooperation of the pneumatic assembly 2, the lifting cylinder 3, the motor 9, and the suction and lifting mechanism 4, so that the plastic cup 6 is inverted on the top of the tray 51; through the cooperation of the left inlet pipe 54 and the supply block 55, the appropriate amount of disinfectant is added to the inside of the tray 51 through the flow outlet on the surface of the supply block 55, until the cup edge of the plastic cup 6 is submerged in the disinfectant, and the liquid level of the disinfectant is always lower than the wall ring height of the tray 51;

[0062] Then the second goose neck pipe 733 is inserted on the exhaust pipe 22, the first valve 737 and the second valve 76 are closed, at this time, the cup edge of the plastic cup 6 is submerged in the disinfectant, and under the premise that the plastic cup 6 is flawless, the inside of the plastic cup 6 is in a sealed state; the air pump 21 is started for a short time to blow a certain volume of air into the inside of the second goose neck pipe 733, and the one-way valve 732 guides the airflow in one direction, so that the airflow is guided to be stored in the rubber ball 734, and at this time the rubber ball 734 is inflated and deformed to extrude the spiral compression spring 736 towards the inner wall of the ball shell 735;

[0063] At this time, the initial position of the straight pipe 72 is that the rubber sleeve is connected with the rubber plug 58 by plug-in connection, and the air outlet is located directly below the plug 535;

[0064] At this time, the first valve 737 is opened to release the air accumulated in the inside of the rubber ball 734, and the extrusion of the spiral compression spring 736 accelerates the air to be discharged from the straight pipe 72, and the bottom of the plug 535 is funnel-shaped, which can uniformly disperse the accelerated air in a circular shape upwards, and make the accelerated air further diffuse in a circular shape to the four directions along the curved surface of the ball joint pipe 533, so that the accelerated air impacts the cup wall in turn through the cup bottom, and then blows on the disinfectant inside the cup edge; through the above operation, the accelerated air can impact the foreign matter remaining in the plastic cup 6 into the disinfectant, realizing the cleaning function of the control mechanism 7 to the inside of the plastic cup 6;

[0065] And through the plug 535 and the ball joint pipe 533, not only can the accelerated air be guided and diffused twice, but also the impact force of the air can be weakened to prevent the plastic cup 6 from being blown directly, and to ensure the normal detection function of the control mechanism 7 to the flaw of the plastic cup 6.

[0066] Then, the air pump 21 is started again with the first valve 737 in the open state, and air is slowly sent into the inside of the plastic cup 6 through the guiding cooperation of the second gooseneck pipe 733, the one-way valve 732, the hose 731, the rubber ball 734, the collecting pipe 71 and the straight pipe 72;

[0067] The liquid seal of the cup mouth is sealed with the disinfectant liquid. After the inside of the plastic cup 6 is filled with air, and before the cup mouth is separated from the liquid surface of the disinfectant liquid, it is carefully listened whether there is a hissing sound of air leakage around the plastic cup 6. If the air leakage sound occurs, it is judged that there is a crack in the plastic cup 6. Then, through further operation, the disinfectant liquid is uniformly sprayed on the surface of the plastic cup 6, and the position where the disinfectant liquid on the surface of the plastic cup 6 is blown away or splashed is observed, so that the crack position of the plastic cup 6 can be detected, and a marker can be used to mark the position, which can provide a position checking basis for the production process of the plastic cup 6.

[0068] The second gooseneck pipe 733 is pulled off the exhaust pipe 22, the first valve 737 is closed, the third gooseneck pipe 75 is inserted into the first air extraction pipe 23, the second valve 76 is opened, and the air pump 21 is started for a period of time. Through the mutual cooperation between the second mechanism 74, the collecting pipe 71, the straight pipe 72 and the rubber plug 58, the air inside the plastic cup 6 can be reversely sucked away.

[0069] When the plastic cup 6 is micro-contracted and deformed as the air inside is sucked away, the air pump 21 can be immediately closed, and it is judged that the plastic cup 6 is a cup body without micro-cracks.

[0070] When the plastic cup 6 does not micro-contract and deform as the air inside is sucked away, it is immediately determined that there is a micro-crack on the surface of the plastic cup 6, and according to the position where the disinfectant liquid uniformly sprayed on the surface of the plastic cup 6 is sucked into the plastic cup 6 through the crack, the position of the crack can be secondarily determined and marked, and the result of the crack detection operation in the previous step can be verified and the crack position marked calibrated. The air pump 21 is closed, and the crack position is marked on the surface of the plastic cup 6 with a marker, which provides a position checking basis for the production process of the plastic cup 6.

[0071] Finally, the third gooseneck pipe 75 inserted into the first air extraction pipe 23 is pulled off, the first valve 737 and the second valve 76 are closed, a certain volume of air is blown into the inside of the second gooseneck pipe 733 by starting the air pump 21 for a short time, and the one-way valve 732 guides the airflow in one direction, so that the airflow is guided and stored in the rubber ball 734, and the rubber ball 734 is inflated at this time and deforms the spiral compression spring 736 by pressing the inner wall of the ball shell 735;

[0072] At this time, the straight-through pipe 72 is pushed upward by the hand-held collecting pipe 71, so that the upper end of the straight-through pipe 72 is inserted on the plug 535, and the clasp ring fixedly connected on the surface of the plug 535 is clamped in the straight-through pipe 72, so as to increase the tightness of the insertion between the straight-through pipe 72 and the plug 535, and prevent the accelerated air from being blown away;

[0073] At this time, the air accumulated in the rubber ball 734 is discharged by opening the first valve 737, and the air is accelerated and discharged from the straight-through pipe 72 by the extrusion of the spiral compression spring 736, and is guided by the plug 535, the ball joint pipe 533 and the spray head 534, and is a horizontal accelerated air flow in the plastic cup 6; the horizontal accelerated air flow in the cup body provides a horizontal thrust to the plastic cup 6, and the cup opening is tightly adsorbed in the tray 51 under the liquid sealing action of the disinfectant;

[0074] When the plastic cup 6 can smoothly slide in the tray 51, it is proved that the cup opening of the plastic cup 6 is flat and defect-free;

[0075] When the plastic cup 6 cannot smoothly slide in the tray 51, but appears other states of non-stable sliding, it is determined that the plastic cup 6 is a product with a defective cup opening;

[0076] In the above manner, the control mechanism 7 realizes the detection function of whether the cup opening of the plastic cup 6 has a defect.

[0077] After the inspection, the plastic cup without defects is re-adsorbed and placed on the conveying belt by the cooperation of the lifting cylinder, the motor and the suction and lifting mechanism, and enters the next packaging link, and the defective plastic cup is uniformly placed in a defective product storage box, so as to provide a location checking basis for checking and maintaining the production process of the plastic cup 6, and facilitate technical maintenance and improvement in the production process.

[0078] Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art and related fields without creative labor should belong to the protection scope of the present application. The structures, devices and operation methods not specifically described and explained in the present application, such as without special description and limitation, are implemented according to the conventional means in the art.

Claims

1. A kind of flaw detection device for disposable tableware blow molding, specifically comprising: Rack, the rack has upper top ring and lower bottom ring, and pneumatic assembly is arranged on the lower bottom ring of rack, and lifting rod is connected between lower bottom ring and upper top ring, and detection assembly is installed on the upper end of upper top ring, and plastic cup is installed on the upper end of detection assembly, and control mechanism is installed on the lower end of detection assembly; Lifting cylinder, set in the rear side of the rack, the lifting cylinder has bottom plate, and motor is arranged on the upper end of lifting cylinder, the output end of the motor is fixedly connected with the hanging plate, the front end of the hanging plate is fixedly connected with suction and hanging mechanism through screw thread; The flaw detection device for disposable tableware blow molding, characterized in that: Detection assembly, the detection assembly includes tray, the tray is combinedly installed on the upper top ring of rack, the upper end of the tray is fixedly connected with the lug pipe, the upper end of the lug pipe is inserted with guide mechanism, the lower end of the tray is fixedly connected with sleeve, the inner wall of the sleeve is fixedly connected with rubber plug, the middle part of the rubber plug is fixedly connected with rubber sleeve, one side of the bottom of the tray is fixedly connected with left inlet pipe, the other side of the bottom of the tray is fixedly connected with right outlet pipe; Control mechanism, the control mechanism includes collection pipe, the upper end of the collection pipe is fixedly connected with straight pipe, and the first mechanism is fixedly connected on the left side of the lower end of the collection pipe, the second mechanism is fixedly connected on the right side of the lower end of the collection pipe, the free end of the second mechanism is fixedly connected with third gooseneck pipe, and the surface of the end of the second mechanism away from the third gooseneck pipe is provided with second valve, and the straight pipe is insertedly connected with rubber plug through rubber sleeve; The first mechanism includes hose, the hose is fixedly connected on the bottom of the collection pipe, the end of the hose away from the collection pipe is fixedly connected with one-way valve, the end of the one-way valve away from the hose is fixedly connected with second gooseneck pipe, the surface of the hose is fixedly connected with spherical shell, and the end of the hose close to the collection pipe is provided with first valve; The end of the hose away from the one-way valve is fixedly connected with rubber ball, the spherical shell is wrapped outside the rubber ball, and at least two spiral compression springs are symmetrically connected on the inner wall of the spherical shell.

2. A defect detection apparatus for blow molding of disposable tableware according to claim 1, characterized in that: The pneumatic assembly includes air pump, the air pump is fixedly installed on the lower bottom ring of the rack, the surface of the air pump is fixedly connected with exhaust pipe, and the side of the air pump is fixedly connected with first air suction pipe, the surface of the first air suction pipe is fixedly connected with second air suction pipe.

3. A defect detection apparatus for blow molding of disposable tableware according to claim 1, wherein: The suction and hanging mechanism includes air guide disc, the air guide disc is screw-threadedly installed with the hanging plate through screw rod, at least three air rods are fixedly installed on the bottom of the air guide disc, and the top of the air guide disc is fixedly connected with first gooseneck pipe.

4. A defect detection apparatus for blow molding of disposable tableware according to claim 1, wherein: The right outlet pipe is provided with waste liquid port at the position coinciding with the tray, the waste liquid port is used for collecting waste disinfectant, the wall ring of the tray is provided with supply block, the upper end of the left inlet pipe penetrates through the tray and is communicated with the inner cavity of the supply block, and the left inlet pipe and the right outlet pipe are screw-threadedly installed with nut and gasket, and the tray is combinedly installed with the upper top ring of the rack through the nut and gasket on the left inlet pipe and the right outlet pipe.

5. A defect detection apparatus for blow molding of disposable tableware according to claim 4, wherein: The guide mechanism includes double-leg frame, the double-leg frame is inserted on the lug pipe, the upper end of the double-leg frame is fixedly connected with hoop, and ball joint pipe is clamped above the double-leg frame, the surface of the ball joint pipe is fixedly connected with spray head, and the bottom of the ball joint pipe is fixedly connected with plug.

6. A defect detection apparatus for blow molding of disposable tableware according to claim 5, wherein: The ball joint pipe surface is provided with a ring groove, and the ball joint pipe is fixedly installed through the ring groove and the hoop ring and the double-leg frame.

7. A defect detection apparatus for blow molding of disposable tableware according to claim 6, wherein: The left inlet pipe is used for conveying the disinfectant, and the supply block is used for conveying the disinfectant to the inner side of the tray.

8. A defect detection apparatus for blow molding of disposable tableware according to claim 1, wherein: The free end of the second mechanism, the second gooseneck pipe and the first gooseneck pipe is fixedly connected with a quick connector.

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