CN114577625B - Plastic product defect detection device and detection method - Google Patents
Plastic product defect detection device and detection method Download PDFInfo
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- CN114577625B CN114577625B CN202210261062.2A CN202210261062A CN114577625B CN 114577625 B CN114577625 B CN 114577625B CN 202210261062 A CN202210261062 A CN 202210261062A CN 114577625 B CN114577625 B CN 114577625B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/18—Performing tests at high or low temperatures
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0044—Pneumatic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0222—Temperature
- G01N2203/0226—High temperature; Heating means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
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Abstract
The invention discloses a plastic product defect detection device and a detection method, which relate to the technical field of plastic product defect detection and have the technical scheme that the device comprises the following components: a detection table; the rotating bracket is rotationally connected to the detection table; the cylinder, the cylinder set up in on the runing rest, and fixedly connected with is used for blockking the protection casing hammering head that plastic products piece splashes on the cylinder output shaft, hammering head set up in the top of protection casing inner wall, the effect is through the cylinder that sets up, can drive hammering head and detect plastic products's crushing resistance, later start the heating plate in the hammering head again, detect the plastic products after the resistance to compression, when gas appears after detecting, through the adsorption plate that sets up, purify the gas that produces, avoid harmful gas to produce and release to in the workshop, cause workshop environment's pollution, and the mistake of operating personnel inhales appears, and then the security in the detection has been improved.
Description
Technical Field
The invention relates to the technical field of plastic product defect detection, in particular to a plastic product defect detection device and a detection method.
Background
Plastic products are commonly called articles for life, industry and the like which are processed by adopting plastics as main raw materials. The plastic is a synthetic polymer material with plasticity, and forms three major synthetic materials with synthetic rubber and synthetic fiber which are indispensable for daily life.
In order to ensure the quality of plastic products, the mass-produced plastic products need to be sampled and detected in the factory, wherein in the detection process, when the high temperature resistance of the plastic products is detected, the defective products are not resistant to high temperature, deformation can occur in heating, and bad smell is released, so that the defective products are diffused into the surrounding environment, and a certain pollution is caused.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a plastic product defect detection device and a detection method.
In order to achieve the above purpose, the present invention provides the following technical solutions:
comprising the following steps:
a detection table;
the rotating bracket is rotationally connected to the detection table;
the cylinder is arranged on the rotary support, and a protective cover for blocking plastic product fragments from splashing is fixedly connected to an output shaft of the cylinder
The hammering head is arranged at the top of the inner wall of the protective cover, and a heating plate is arranged in the hammering head and used for heating plastic products;
the detection mechanism is arranged on the protective cover and comprises a box body, the box body is fixed on the protective cover, a treatment pump is arranged on one side of the interior of the box body, a connecting pipe is communicated with one side of the treatment pump, one end of the connecting pipe is communicated with a detector, the detector is arranged on one side of the interior of the box body, a suction nozzle is arranged on one side of the interior of the protective cover, and the suction nozzle is communicated with the treatment pump through a pipeline;
the purifying assembly is arranged in the box body and comprises adsorption plates, the adsorption plates are arranged on two sides of the inside of the box body, and an air outlet head for discharging adsorbed gas is communicated with the bottom of the box body;
the controller is used for starting the air cylinder, extruding the surface of the plastic product by the hammering head in the protective cover, and then controlling the heating plate to heat the plastic product; searching a preset plastic product type-temperature information table to obtain a heating temperature T, and calculating the pressure of the plastic product by a controller, wherein S is an area value of the plastic product, H is a thickness value of the plastic product and is a scale factor, and judging whether P is larger than a preset P, wherein if so, the pressure is a product qualified signal; if not, the product is a disqualified signal, and then the controller controls the air cylinder to move upwards, so that the hammering head is separated from the plastic product, and the heating plate is controlled to stop working.
Preferably, the bottom fixedly connected with base of detecting the platform, one side of base is provided with the motor, the motor output shaft is fixed in on the runing rest, be used for the drive the runing rest rotates, makes the protection casing keep away from the detecting the platform, will wait to detect the plastic products and put into detecting the bench.
Preferably, the detection table is rotatably connected with a slave gear, the outer surface of the rotary support is fixedly connected with a master gear, and the outer surface of the master gear is meshed with the outer surface of the slave gear.
Preferably, the slave gear is provided with a T-shaped rod, the detection table is fixedly connected with a connecting plate, the connecting plate is slidably connected with a displacement plate, a through groove is formed in the displacement plate, the T-shaped rod is slidably connected with the inside of the through groove, and a T-shaped push plate for moving detected plastics is fixedly connected to the displacement plate.
Preferably, the U-shaped groove has been seted up to the inside of detecting bench, the inside sliding connection in U-shaped groove has the sliding block, the sliding block is fixed in on the T shape push pedal, and one side of sliding block is through connecting rod fixedly connected with apron.
Preferably, an opening is formed in the detection table, a feeding groove is formed in the base, the feeding groove is communicated with the opening, and the detected plastic product falls into the feeding groove through the opening to be collected under the pushing of the T-shaped push plate.
Preferably, the cover plate is used for sealing the opening and preventing residual gas from diffusing out of the feed tank after detection.
Preferably, the protective cover is provided with a driving motor, a rotating shaft is fixedly connected to an output shaft of the driving motor, a scraping plate is fixedly connected to the outer surface of the rotating shaft through a sleeve, and the scraping plate is used for scraping plastic products remained at the bottom of the hammering head.
Preferably, a rotating opening is formed in one side of the protective cover, so that the scraping plate rotates to enter, and the plastic product left at the bottom of the hammering head is scraped.
A plastic product defect detection method is applied to a plastic product defect detection device, and comprises the following steps:
s1, starting the air cylinder, and extruding the surface of a plastic product by a hammering head in the protective cover;
s2, controlling the heating plate to heat the plastic product; searching a preset plastic product type-temperature information table to obtain a heating temperature T 1 ；
S3, the controller calculates the pressure intensity of the plastic productWherein S is 1 Is the area value of the plastic product, H 1 Is the thickness value of the plastic product, and alpha is a scale factor;
s4, judging whether P is larger than a preset P0, wherein if so, the signal is a product qualified signal; if not, the signal is a product disqualification signal;
s5, the controller controls the air cylinder to move upwards, so that the hammering head is separated from the plastic product, and the heating plate is controlled to stop working.
Compared with the prior art, the invention has the following beneficial effects:
through the cylinder that sets up, can drive hammering head and detect plastic products's crushing resistance, later start the heating plate in the hammering head again, detect the plastic products after the resistance to compression to heating, when gas appears after detecting, through the adsorption plate that sets up, purify the gas that produces, avoid harmful gas to produce and release to in the workshop, cause workshop environment's pollution to the mistake of operating personnel inhales, and then has improved the security in the detection.
Drawings
FIG. 1 is a schematic diagram of a defect detecting device for plastic products according to a first embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of the cartridge of FIG. 1;
FIG. 3 is a schematic top view of the slave gear of FIG. 1;
FIG. 4 is a schematic view of the internal structure of the shield shown in FIG. 1;
FIG. 5 is a schematic diagram of a second embodiment of a defect detecting device for plastic products according to the present invention;
fig. 6 is a flowchart of a method for detecting defects of a plastic product according to the present invention.
1. A detection table; 2. a rotating bracket; 3. a cylinder; 4. a protective cover; 5. a hammering head; 6. a heating sheet; 7. a detection mechanism; 71. a case body; 72. a treatment pump; 73. a connecting pipe; 74. a detector; 8. a purification assembly; 81. an adsorption plate; 82. an air outlet head; 9. a base; 10. a motor; 11. a slave gear; 12. a main gear; 13. a T-bar; 14. a connecting plate; 15. a displacement plate; 16. a through groove; 17. a T-shaped push plate; 18. a U-shaped groove; 19. a sliding block; 20. a cover plate; 21. an opening; 22. a feed chute; 23. a driving motor; 24. a rotating shaft; 25. a scraper; 26. and rotating the opening.
Detailed Description
Example 1
An embodiment of a plastic product defect detecting device and a detecting method according to the present invention will be further described with reference to fig. 1, 2 and 4.
A plastic product defect detection device and a detection method thereof comprise:
a detection table 1;
a rotating bracket 2, wherein the rotating bracket 2 is rotatably connected to the detecting table 1;
the cylinder 3, the cylinder 3 set up in on the runing rest 2, and fixedly connected with is used for stopping plastic products fragments to splash's protection casing 4 on the cylinder 3 output shaft
The hammering head 5 is arranged at the top of the inner wall of the protective cover 4, and a heating plate 6 is arranged in the hammering head 5 and used for heating plastic products;
the detection mechanism 7 is arranged on the protective cover 4, the detection mechanism 7 comprises a box body 71, the box body 71 is fixed on the protective cover 4, a treatment pump 72 is arranged on one side of the interior of the box body 71, a connecting pipe 73 is communicated with one side of the treatment pump 72, a detector 74 is communicated with one end of the connecting pipe 73, the detector 74 is arranged on one side of the interior of the box body 71, a suction nozzle 75 is arranged on one side of the interior of the protective cover 4, and the suction nozzle 75 is communicated with the treatment pump 72 through a pipeline;
the purifying component 8 is arranged in the box body 71, the purifying component 8 comprises adsorption plates 81, the adsorption plates 81 are arranged on two sides of the interior of the box body 71, and an air outlet head 82 for discharging adsorbed gas is communicated with the bottom of the box body 71;
the controller is used for starting the air cylinder 3, extruding the hammering head 5 in the protective cover 4 to the surface of the plastic product, and then controlling the heating plate 6 to heat the plastic product; searching a preset plastic product type-temperature information table to obtain a heating temperature T 1 And the controller calculates the pressure of the plastic productWherein S is 1 Is the area value of the plastic product, H 1 The method comprises the steps of determining whether P is larger than a preset P0 or not, wherein if so, the thickness value of a plastic product is a proportionality factor alpha, and if so, the product is a qualified signal; if not, the product is a product disqualification signal, and then the controller controls the air cylinder 3 to move upwards, so that the hammering head 5 is separated from the plastic product, and controls the heating plate 6 to stop working;
the air cylinder 3 is connected with the controller, and the controller is arranged on the detection table 1, wherein the specific installation position is adjusted according to specific use requirements, and details are omitted herein;
the controller is connected with an external power supply and a control switch and is used for controlling the starting and stopping of the air cylinder 3 and the heating plate 6;
the protective cover 4 not only can block fragments generated by extrusion of the plastic products in detection, but also can block gas generated in heating, so that the fragments can be prevented from being directly released to the external environment;
the processing pump 72 is connected to an external power supply and a control switch;
the suction nozzle 75 is used for sucking the gas released by the plastic product during heating and then conveying the gas into the box body 71 for purification;
the adsorption plate 81 is used for purifying the sucked gas, so as to avoid releasing the gas into the external environment and causing pollution;
the detector 74 adopts the prior art to detect harmful substances in the gas, and when the harmful substances exceed the standard, the harmful substances are defective products;
the hammering head 5 contacts the top of the plastic product and extrudes the plastic product, and judges whether the plastic product is a defective product by observing the deformation degree of the plastic product, wherein the type-temperature information table of the plastic product is the prior art, and is not described herein, and when the product is a defective signal, the product is a defective product, otherwise, the product is not.
The bottom of the detection table 1 is fixedly connected with a base 9, one side of the base 9 is provided with a motor 10, and an output shaft of the motor 10 is fixed on the rotary support 2 and is used for driving the rotary support 2 to rotate so that the protective cover 4 is far away from the detection table 1, and a plastic product to be detected is placed on the detection table 1;
the motor 10 is connected with an external power supply and a control switch;
the motor 10 is a forward and reverse rotation motor, and can control the forward and reverse rotation of the rotary support 2, so that the air outlet head 82 sprays air, blow the plastic product remained on the detection table 1 and cool the plastic product;
meanwhile, the T-shaped push plate 17 and the cover plate 20 can be controlled to slide back and forth, wherein the T-shaped push plate 17 pushes the detected plastic product to enter the feeding chute 22 for collection, and when the T-shaped push plate 17 slides to one side for detection, the cover plate 20 also slides along with the sliding, so that the entering plastic product is sealed, and the release of gas is avoided.
The detection table 1 is rotatably connected with a slave gear 11, the outer surface of the rotary support 2 is fixedly connected with a master gear 12, and the outer surface of the master gear 12 is meshed with the outer surface of the slave gear 11.
The secondary gear 11 is provided with a T-shaped rod 13, the detection table 1 is fixedly connected with a connecting plate 14, the connecting plate 14 is slidably connected with a displacement plate 15, the displacement plate 15 is provided with a through groove 16, the T-shaped rod 13 is slidably connected to the inside of the through groove 16, and the displacement plate 15 is fixedly connected with a T-shaped push plate 17 for moving the detected plastic;
please refer to fig. 3:
the T-shaped rod 13 is matched with the through groove 16, and the displacement plate 15 is pushed to slide by the rotation of the gear 11.
The inside of detecting bench 1 has seted up U-shaped groove 18, the inside sliding connection of U-shaped groove 18 has slider 19, slider 19 is fixed in on the T shape push pedal 17, and one side of slider 19 is through connecting rod fixedly connected with apron 20.
An opening 21 is formed in the detection table 1, a feed chute 22 is formed in the base 9, the feed chute 22 is communicated with the opening 21, and the detected plastic products fall into the feed chute 22 through the opening 21 under the pushing of the T-shaped push plate 17 to be collected.
The cover plate 20 is used to seal the opening and prevent residual gas from diffusing out of the feed tank 22 after testing.
A rotating opening 26 is formed in one side of the protective cover 4, so that the scraping plate 25 rotates to enter, and the plastic product remained at the bottom of the hammering head 5 is scraped.
Please refer to fig. 6
A plastic product defect detection method is applied to a plastic product defect detection device, and comprises the following steps:
s1, starting the air cylinder 3, and extruding the hammering head 5 in the protective cover 4 to the surface of a plastic product;
s2, controlling the heating plate 6 to heat the plastic product; searching a preset plastic product type-temperature information table to obtain a heating temperature T 1 ；
S3, the controller calculates the pressure intensity of the plastic productWherein S is 1 Is the area value of the plastic product, H 1 Is the thickness value of the plastic product, and alpha is a scale factor;
s4, judging whether P is larger than a preset P0, wherein if so, the signal is a product qualified signal; if not, the signal is a product disqualification signal;
s5, the controller controls the air cylinder 3 to move upwards, so that the hammering head 5 is separated from the plastic product, and the heating plate 6 is controlled to stop working.
Working principle:
step one: firstly, placing a plastic product on a detection table 1, then starting an air cylinder 3, pushing a protective cover 4 to move downwards, enabling a hammering head 5 in the protective cover 4 to apply pressure to the surface of the plastic product, and simultaneously starting a heating plate 6, enabling the hammering head 5 to heat the plastic product, so as to observe the change condition of the plastic product at a certain temperature;
step two: when the plastic product is heated, such as when the plastic product generates gas in the heating process, the processing pump 72 is started to enable the gas outlet head 82 to absorb the generated gas, and then the gas enters the detector 74 under the transportation of the pipeline and the connecting pipe 73 to detect the entering gas; when the detected gas value exceeds the set threshold value, the entered gas is filtered and purified through the arranged adsorption plate 81, and then is discharged through the outlet mouth 82;
step three: when the plastic product on the detection table 1 is replaced after the detection is finished, the rotary support 2 on the output shaft of the motor 10 is rotated by starting the motor 10, so that the hammering head 5 is far away from the position right above the plastic product, the detected plastic product is cooled through the air outlet 82, and meanwhile, plastic product fragments generated by hammering are blown and cleaned;
step four: wherein, the rotation of the rotary bracket 2 drives the main gear 12 to rotate along with the rotation, and drives the auxiliary gear 11 to rotate along with the rotation through the meshing relationship, and the T-shaped rod 13 pushes the displacement plate 15 to slide leftwards on the connecting plate 14, drives the T-shaped push plate 17 to be close to the plastic product and pushes the T-shaped push plate;
step five: when the T-shaped push plate 17 slides, the sliding block 19 slides in the U-shaped groove 18, and the cover plate 20 is separated from the opening 21, so that the pushed plastic product smoothly enters the feeding groove 22;
step six: when the next plastic product is detected, otherwise, the above steps are operated, wherein the T-shaped push plate 17 slides in the opposite direction, and the cover plate 20 slides to cover the opening 21, so as to seal the entered plastic product and prevent the residual gas from being released.
Example two
Please refer to fig. 5
The protective cover 4 is provided with a driving motor 23, a rotating shaft 24 is fixedly connected to an output shaft of the driving motor 23, a scraping plate 25 is fixedly connected to the outer surface of the rotating shaft 24 through a sleeve, and the scraping plate 25 is used for scraping plastic products remained at the bottom of the hammering head 5;
the driving motor 23 is connected with an external power supply and a control switch;
and the driving motor 23 is a forward and reverse rotation driving motor 23, drives the scraping plate 25 to rotate, and scrapes and cleans the plastic products remained on the hammering head 5.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the present invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.
Claims (6)
1. A plastic product defect detection device, characterized by comprising:
a detection table (1);
the rotating support (2) is rotatably connected to the detection table (1);
the air cylinder (3), the air cylinder (3) is arranged on the rotary support (2), and a protective cover (4) for blocking the splashing of the plastic product fragments is fixedly connected to an output shaft of the air cylinder (3);
the hammering head (5) is arranged at the top of the inner wall of the protective cover (4), and a heating plate (6) is arranged in the hammering head (5) and used for heating plastic products;
the detection mechanism (7), detection mechanism (7) set up in on protection casing (4), and detection mechanism (7) include box body (71), box body (71) are fixed in on protection casing (4), and one side of box body (71) inside is provided with treatment pump (72), one side intercommunication of treatment pump (72) has connecting pipe (73), and one end intercommunication of connecting pipe (73) has detector (74), detector (74) set up in one side of box body (71) inside, one side of protection casing (4) inside is provided with suction nozzle (75), and suction nozzle (75) through pipeline with treatment pump (72) intercommunication;
the purifying component (8), the purifying component (8) is arranged in the box body (71), the purifying component (8) comprises adsorption plates (81), the adsorption plates (81) are arranged on two sides of the inside of the box body (71), and an air outlet head (82) for discharging adsorbed gas is communicated with the bottom of the box body (71);
the controller is used for starting the air cylinder (3), extruding the hammering head (5) in the protective cover (4) to the surface of the plastic product, and then controlling the heating plate (6) to heat the plastic product; searching a preset plastic product type-temperature information table to obtain a heating temperature T 1 And the controller calculates the pressure of the plastic productWherein S is 1 Is the area value of the plastic product, H 1 Is the thickness value of the plastic product, < >>Is a scale factor, and->，F 1 For the extrusion force applied by the plastic product, judging whether P is larger than a preset P 0 If yes, the signal is a qualified signal of the product; if not, the air cylinder (3) is controlled by the controller to move upwards to separate the hammering head (5) from the plastic product, and the heating plate (6) is controlled to stop working;
the bottom of the detection table (1) is fixedly connected with a base (9), one side of the base (9) is provided with a motor (10), and an output shaft of the motor (10) is fixed on the rotary support (2) and is used for driving the rotary support (2) to rotate, so that the protective cover (4) is far away from the detection table (1), and a plastic product to be detected is placed on the detection table (1);
the detection table (1) is rotationally connected with a slave gear (11), the outer surface of the rotary support (2) is fixedly connected with a master gear (12), and the outer surface of the master gear (12) is meshed with the outer surface of the slave gear (11);
the automatic detection device is characterized in that a T-shaped rod (13) is arranged on the slave gear (11), a connecting plate (14) is fixedly connected to the detection platform (1), a displacement plate (15) is slidably connected to the connecting plate (14), a through groove (16) is formed in the displacement plate (15), the T-shaped rod (13) is slidably connected to the inside of the through groove (16), and a T-shaped push plate (17) for moving detected plastics is fixedly connected to the displacement plate (15);
the detection table is characterized in that a U-shaped groove (18) is formed in the detection table (1), a sliding block (19) is connected to the U-shaped groove (18) in a sliding mode, the sliding block (19) is fixed to the T-shaped push plate (17), and a cover plate (20) is fixedly connected to one side of the sliding block (19) through a connecting rod.
2. The plastic product defect detection device according to claim 1, wherein the detection table (1) is provided with an opening (21), the inside of the base (9) is provided with a feed chute (22), the feed chute (22) is communicated with the opening (21), and the detected plastic product falls into the feed chute (22) through the opening (21) to be collected under the pushing of the T-shaped push plate (17).
3. A plastic product defect inspection apparatus according to claim 2, wherein said cover plate (20) is adapted to seal said opening against the diffusion of residual gases from said feed chute (22) after inspection.
4. A plastic product defect detection device according to claim 3, characterized in that the protective cover (4) is provided with a driving motor (23), a rotating shaft (24) is fixedly connected to an output shaft of the driving motor (23), a scraping plate (25) is fixedly connected to an outer surface of the rotating shaft (24) through a sleeve, and the scraping plate (25) is used for scraping plastic products remained at the bottom of the hammering head (5).
5. The plastic product defect detection device according to claim 4, wherein a rotating opening (26) is formed in one side of the protective cover (4), so that the scraping plate (25) rotates to enter, and the plastic product remained at the bottom of the hammering head (5) is scraped.
6. A plastic product defect detection method, which is applied to the plastic product defect detection device according to any one of claims 1 to 5, and is characterized in that the plastic product defect detection method comprises the following steps:
s1, starting the air cylinder (3), and extruding the hammering head (5) in the protective cover (4) to the surface of a plastic product;
s2, controlling the heating sheet (6) to heat the plastic product; searching a preset plastic product type-temperature information table to obtain a heating temperature T 1 ；
S3, the controller calculates the pressure intensity of the plastic productWherein S1 is the area value of the plastic product, H1 is the thickness value of the plastic product, < >>Is a scale factor, F 1 Is the extrusion force applied to the plastic product;
s4, judging whether P is larger than a preset P0, wherein if so, the signal is a product qualified signal; if not, the signal is a product disqualification signal;
s5, the controller controls the air cylinder (3) to move upwards, so that the hammering head (5) is separated from the plastic product, and the heating plate (6) is controlled to stop working.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210261062.2A CN114577625B (en) | 2022-03-16 | 2022-03-16 | Plastic product defect detection device and detection method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210261062.2A CN114577625B (en) | 2022-03-16 | 2022-03-16 | Plastic product defect detection device and detection method |
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| CN114577625A CN114577625A (en) | 2022-06-03 |
| CN114577625B true CN114577625B (en) | 2023-10-20 |
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Citations (14)
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