CN113447216A - Blow-molded bottle air tightness detection equipment and detection method thereof - Google Patents
Blow-molded bottle air tightness detection equipment and detection method thereof Download PDFInfo
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- CN113447216A CN113447216A CN202110717588.2A CN202110717588A CN113447216A CN 113447216 A CN113447216 A CN 113447216A CN 202110717588 A CN202110717588 A CN 202110717588A CN 113447216 A CN113447216 A CN 113447216A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/32—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/32—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
- G01M3/3209—Details, e.g. container closure devices
Abstract
The invention belongs to the technical field of blow molding bottle production, and aims to solve the problems that manual air blowing is needed to be carried out in a blow molding bottle and the pressure intensity in the blow molding bottle is needed to be detected when the air tightness of the blow molding bottle is detected at present, time and labor are wasted, the detection efficiency is low, the sealing effect on the bottle mouth of the blow molding bottle is difficult to ensure, and the air tightness detection result is not accurate enough; according to the invention, the blow-molded bottle is conveyed by the conveying belt, the anti-toppling mechanism can effectively prevent the blow-molded bottle from toppling in the conveying process, can automatically detect the air tightness, does not need to manually perform air blowing and air pressure detection, can obviously improve the sealing effect on the bottle mouth, and has a more accurate detection result.
Description
Technical Field
The invention relates to the technical field of blow-molded bottle production, in particular to a blow-molded bottle air tightness detection device and a blow-molded bottle air tightness detection method.
Background
Blow molding, also known as blow molding, is widely used with the birth of high density polyethylene and the development of blow molding machines, and the blow molding technology, the volume of hollow containers can reach thousands of liters, some production has adopted computer control, the plastics suitable for blow molding are polyethylene, polyvinyl chloride, polypropylene, polyester, etc., the obtained hollow containers are widely used as industrial packaging containers, blow molding can be divided into extrusion blow molding and injection blow molding according to the parison making method, newly developed are multilayer blow molding and stretch blow molding, extrusion blow molding is a method for making hollow thermoplastic articles, widely known blow molding objects are bottles, barrels, cans, boxes and all containers for packaging food, beverage, cosmetics, medicine and daily necessities;
blow molding bottles are processed through a blow molding process, air tightness detection needs to be carried out on the blow molding bottles after production is finished, so that whether the quality of the blow molding bottles is qualified or not is judged, at present, when the air tightness detection is carried out on the blow molding bottles, the bottle mouths of blow molding products generally need to be sealed manually, air blowing and air pressure detection are carried out on the blow molding bottles manually, the operation is complex, time and labor are wasted, and the detection effect and the detection efficiency are required to be improved;
to this end, we propose a device and a method for detecting the air tightness of a blow-molded bottle.
Disclosure of Invention
The invention aims to provide a device and a method for detecting the air tightness of a blow-molded bottle, wherein the blow-molded bottle is conveyed by a conveying belt, an anti-toppling mechanism can effectively prevent the blow-molded bottle from toppling over in the conveying process, the continuous air tightness detection of the blow-molded bottle is facilitated, the detection efficiency is obviously improved, the bottle mouth is preliminarily sealed by a pressing plate and an annular groove, the hollow expansion ring is expanded and tightly presses the inner wall of the bottle mouth to perform secondary sealing on the bottle mouth, the sealing effect on the bottle mouth is obviously improved, the detection result is more accurate, the air tightness detection can be automatically performed, the operation is simple, time and labor are saved, the problems that manual air blowing into the blow-molded bottle and the internal pressure intensity of the blow-molded bottle are required to be detected when the air tightness of the blow-molded bottle is detected at present are solved, time and labor are wasted, the detection efficiency is low, and the sealing effect on the blow-molded bottle mouth is difficult to ensure are solved, the air tightness detection result is not accurate enough.
In order to achieve the purpose, the invention provides the following technical scheme:
an air tightness detection device for blow molding bottles comprises an air tightness detection mechanism, a vertical plate, a horizontal plate, a mounting plate, supporting legs, a conveying belt, a driving roller, a driven roller and a driving motor, the mounting plate comprises a front group and a rear group, the bottom of the mounting plate is fixedly provided with a supporting leg through a bolt, the driving roller and the driven roller are rotatably arranged at two sides of the mounting plate through a rotating shaft, the conveying belt is connected with the driving roller and the driven roller, the driving motor is fixedly arranged on one group of mounting plates through a motor base, the output end of the driving motor is connected with the driving roller, the vertical plates are fixedly arranged on one group of mounting plates, the vertical plates are provided with horizontal plates, the air tightness detection mechanism is arranged at the bottom of the horizontal plates, a plurality of groups of anti-toppling mechanisms are arranged on the conveying belt, the anti-toppling mechanisms are arranged at equal intervals, and a bearing plate is fixedly arranged between the two groups of mounting plates; an infrared sensor is fixedly mounted on one group of mounting plates through bolts and is positioned below the air tightness detection mechanism;
the air tightness detection mechanism comprises a lifting air cylinder, a pressure plate, an annular groove, a hollow expansion ring, a fixed column, a first sealing disc, a second sealing disc, a cavity, a connecting cavity, a wear-resistant sealing ring, an electric push rod, a connecting pipe, an air delivery port, an air blowing pipe, an exhaust pipe, a connecting rod and an air pressure sensor; the lifting cylinder is fixedly arranged at the bottom of the horizontal plate, the pressing plate is horizontally arranged below the lifting cylinder, and the lifting cylinder acts on the pressing plate; the bottom of the pressing plate is provided with an annular groove, the mouth of the blow-molded bottle is inserted into the annular groove, and the hollow expansion ring is arranged in the annular groove and inserted into the mouth of the blow-molded bottle; the fixed column is fixedly arranged at the bottom of the pressing plate, and a cavity is formed in the fixed column; the fixing column is provided with a connecting pipe for communicating the hollow expansion ring and the cavity, and the fixing column is provided with an air transmission port communicated with the cavity; the first sealing disc and the second sealing disc are arranged in the cavity in a sliding mode, the first sealing disc is located above the second sealing disc, the connecting rod is fixedly connected with the first sealing disc and the second sealing disc, and the outer peripheral surfaces of the first sealing disc and the second sealing disc are provided with wear-resistant sealing rings; the top of the cavity is fixedly provided with an electric push rod, and the other end of the electric push rod is connected with the top of the first sealing disc; a connecting cavity is formed in the first sealing disc, an opening communicated with the connecting cavity is formed in the bottom of the first sealing disc, and an air pressure sensor is fixedly mounted at the top of the second sealing disc through a bolt; an air blowing pipe and an exhaust pipe which are communicated with the connecting cavity are arranged on the first sealing disc, the air blowing pipe and the exhaust pipe are hoses, and an electromagnetic valve is arranged on the exhaust pipe;
when the second sealing disc seals the gas transmission port, the communication position of the connecting pipe and the cavity is positioned between the first sealing disc and the second sealing disc; when the first sealing disc seals the connection between the connecting tube and the cavity, the gas transfer port is located between the first sealing disc and the second sealing disc.
Further, the anti-toppling mechanism comprises a fixed box, a placing groove, a trapezoidal pressing block, a sliding rod, a second limiting block, a second spring and an anti-skid layer;
the bottom of the fixed box is connected with the conveying belt, a placing groove is formed in the fixed box, and the bottom of the blow-molded bottle is inserted into the placing groove; the trapezoidal pressing blocks are arranged in the placing groove in a plurality of groups and distributed in an annular array manner around the blow molded bottle, one surface of each trapezoidal pressing block, which faces the mouth of the blow molded bottle, is an inclined surface, and an anti-skid layer is arranged at the position, which is in contact with the blow molded bottle, on each trapezoidal pressing block; one side of the trapezoidal pressing block, which faces away from the blow molding bottle, is fixedly provided with a plurality of groups of sliding rods through bolts, the other ends of the sliding rods penetrate through the fixed box and are connected with a second limiting block, and a second spring is arranged on the outer wall of the fixed box and is connected with the second limiting block.
Furthermore, a thread groove is formed in the bottom of the fixing box, a stud is fixedly mounted on the surface of the conveying belt, and the stud is in threaded connection with the fixing box through the thread groove.
Furthermore, a booster pump is fixedly arranged on the vertical plate through a fixed seat, and an air outlet of the booster pump is connected with an air blowing pipe; there are control panel on the riser through bolt fixed mounting, infrared sensor and baroceptor communication connection control panel respectively, control panel control driving motor, lift cylinder, electric putter and booster pump, control panel controls the solenoid valve on the blast pipe.
Further, two install the manipulator between the mounting panel, manipulator and driven voller are located the homonymy, and waste product box and non-defective products box are placed to one side that is close to the driven voller, and waste product box and non-defective products box are located the below of manipulator.
Further, a movable plate is arranged above the pressure plate, a plurality of groups of guide rods are fixedly mounted at the top of the pressure plate through bolts, and the guide rods upwards penetrate through the movable plate and are fixedly connected with a first limiting block; the guide rod is sleeved with a first spring, the first spring is connected with the movable plate and the pressing plate, and the bottom of the lifting cylinder is connected with the movable plate.
The invention also provides a detection method of the device for detecting the air tightness of the blow-molded bottle, which comprises the following steps:
s1, fixing the blow molded bottle through an anti-toppling mechanism, and specifically operating as follows:
the blow molding bottle bottom is inserted into the placing groove, the blow molding bottle presses each trapezoidal pressure block downwards, the downward pressure pushes each trapezoidal pressure block to move outwards, the distance between the second limiting block and the fixed box is increased, the second spring is in a stretching state, and finally each trapezoidal pressure block abuts against the blow molding bottle bottom;
s2, starting a driving motor to enable a driving roller to rotate, conveying a blow-molded bottle by a conveying belt, sensing the blow-molded bottle by an infrared sensor when the blow-molded bottle enters the lower part of the air tightness detection mechanism, stopping the operation of the driving motor, and stopping the conveying of the conveying belt;
s3, starting the lifting cylinder to enable the pressing plate to descend until the pressing plate presses the mouth of the blow-molded bottle, inserting the mouth of the blow-molded bottle into the annular groove, and sealing the mouth of the blow-molded bottle by the annular groove;
s4, blowing gas into the connecting cavity through the gas blowing pipe, conveying the gas into the hollow expansion ring through the connecting pipe, expanding the hollow expansion ring and pressing the inner wall of the bottle mouth, and performing secondary sealing on the bottle mouth;
s5, starting an electric push rod and stopping blowing air, enabling the first sealing disk and the second sealing disk to descend by the electric push rod until the first sealing disk seals the communication position between the connecting pipe and the cavity, and enabling the air transmission port to be located between the first sealing disk and the second sealing disk;
s6, blowing and pressurizing the blowing pipe again, enabling the gas in the connecting cavity to enter the blow-molded bottle through the gas transmission port, stopping blowing after a certain time, and recording the pressure value at the moment; keeping the pressure for 7-10s, and recording the air pressure value again;
s7, the air pressure sensor sends the two sets of air pressure data to the control panel, the processor in the control panel analyzes the air pressure data, when the difference between the two sets of air pressure values is smaller than a preset value, the air tightness of the blow molding bottle meets the requirement, otherwise, the air tightness of the blow molding bottle does not meet the requirement;
and S8, after the detection is finished, the exhaust pipe exhausts the gas in the hollow expansion ring and the blow molded bottle, the air tightness detection mechanism is separated from the blow molded bottle, and the conveying belt continues to convey the blow molded bottle to prepare for the detection of the next blow molded bottle.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the blow molding bottle anti-toppling device, the blow molding bottle bottom is inserted into the placing groove through the anti-toppling mechanism, the second spring is in a stretching state, each trapezoidal pressing block abuts against the blow molding bottle bottom, the blow molding bottle is fixed, the blow molding bottle is conveyed through the conveying belt, the blow molding bottle is effectively prevented from toppling in the conveying process, the blow molding bottle is favorably and continuously subjected to air tightness detection, and the detection efficiency is obviously improved;
2. according to the invention, the bottle mouth is primarily sealed through the pressing plate and the annular groove, and the hollow expansion ring is expanded and tightly presses the inner wall of the bottle mouth, so that the bottle mouth is secondarily sealed, the sealing effect of the bottle mouth is obviously improved, the gas is prevented from leaking from the bottle mouth in the detection process, the detection error is increased, and the detection result is more accurate;
3. according to the invention, the pressing plate is lifted through the lifting air cylinder, the infrared sensor senses the blow-molded bottle, the air pressure is detected through the air pressure sensor, the air pressure data is analyzed and whether the air tightness of the blow-molded bottle meets requirements or not is judged, the air tightness detection can be automatically carried out, the operation is simple, time and labor are saved, and the air tightness detection effect and the detection efficiency are obviously improved.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings;
fig. 1 is a schematic overall structure diagram of an air tightness detection device for a blow-molded bottle according to the present invention.
Fig. 2 is a left side view of an airtightness detection apparatus for a blow-molded bottle according to the present invention.
Fig. 3 is a schematic structural diagram of an air-tightness detection mechanism in the air-tightness detection device for the blow-molded bottle according to the present invention.
Fig. 4 is an enlarged view of a portion a in fig. 3.
Fig. 5 is a schematic view (bottom view) illustrating the connection between the platen and the fixed column in the air tightness test of the blow molded bottle according to the present invention.
Fig. 6 is a schematic structural diagram of an anti-toppling mechanism in the air tightness detection device for the blow-molded bottle according to the present invention.
Fig. 7 is a top view of an anti-toppling mechanism for an airtightness detection apparatus for a blow-molded bottle according to the present invention.
Reference numerals: 1. an air tightness detection mechanism; 101. a lifting cylinder; 102. pressing a plate; 103. an annular groove; 104. a hollow expansion ring; 105. fixing a column; 106. a first sealing disk; 107. a second sealing disk; 108. a cavity; 109. a connecting cavity; 110. a wear-resistant seal ring; 111. an electric push rod; 112. a connecting pipe; 113. a gas transmission port; 114. blowing a gas pipe; 115. an exhaust pipe; 116. a movable plate; 117. a guide bar; 118. a first stopper; 119. a first spring; 120. a connecting rod; 121. an air pressure sensor; 2. a vertical plate; 3. a horizontal plate; 4. mounting a plate; 5. supporting legs; 6. a conveyor belt; 7. a drive roll; 8. a driven roller; 9. a carrier plate; 10. an anti-toppling mechanism; 1001. a fixing box; 1002. a placement groove; 1003. a trapezoidal briquetting; 1004. a slide bar; 1005. a second limiting block; 1006. a second spring; 1007. an anti-slip layer; 1008. a thread groove; 11. an infrared sensor; 12. a drive motor; 13. a stud; 14. a control panel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in figures 1-7, the invention provides an air tightness detection device for blow-molded bottles, which comprises an air tightness detection mechanism 1, a vertical plate 2, a horizontal plate 3, a mounting plate 4, support legs 5, a conveyor belt 6, a drive roller 7, a driven roller 8 and a driving motor 12, wherein the mounting plate 4 comprises a front group and a rear group, the bottom of the mounting plate 4 is fixedly provided with the support legs 5 through bolts, the support legs 5 support the mounting plate 4, the drive roller 7 and the driven roller 8 are rotatably arranged at two sides of the mounting plate 4 through rotating shafts, the conveyor belt 6 is connected with the drive roller 7 and the driven roller 8, the conveyor belt 6 conveys blow-molded bottles, the driving motor 12 is fixedly arranged on one group of the mounting plates 4 through a motor base, the output end of the driving motor 12 is connected with the drive roller 7, the driving motor 12 drives the drive roller 7, the vertical plate 2 is fixedly arranged on one group of the mounting plates 4, the horizontal plate 3 is arranged on the vertical plate 2, the air tightness detection mechanism 1 is installed at the bottom of the horizontal plate 3, the air tightness detection mechanism 1 is used for detecting the air tightness of the blow molded bottle, a plurality of groups of anti-toppling mechanisms 10 are installed on the conveying belt 6, the anti-toppling mechanisms 10 are used for fixing the blow molded bottle so as to prevent the blow molded bottle from toppling in the conveying process, the anti-toppling mechanisms 10 are arranged at equal intervals, a bearing plate 9 is fixedly arranged between the two groups of mounting plates 4, and when the air tightness detection is carried out, the bearing plate 9 supports the blow molded bottle above, so that the stability of the detection process is facilitated; an infrared sensor 11 is fixedly installed on one group of the installation plates 4 through bolts, the infrared sensor 11 is located below the air tightness detection mechanism 1, the infrared sensor 11 senses a blow molding bottle entering below the air tightness detection mechanism 1, and the conveying belt 6 stops conveying when the blow molding bottle entering below the air tightness detection mechanism 1 is sensed;
the anti-toppling mechanism 10 comprises a fixed box 1001, a placing groove 1002, a trapezoidal pressing block 1003, a sliding rod 1004, a second limiting block 1005, a second spring 1006 and an anti-skid layer 1007; the bottom of the fixed box 1001 is connected with the conveyer belt 6, a placing groove 1002 is formed in the fixed box 1001, and the bottom of the blow molded bottle is inserted into the placing groove 1002; the trapezoidal pressing blocks 1003 are arranged in the placing groove 1002 in multiple groups and distributed in an annular array mode around the blow molding bottle, one face, facing the bottle opening of the blow molding bottle, of each trapezoidal pressing block 1003 is an inclined face, when the blow molding bottle presses each trapezoidal pressing block 1003 downwards, the trapezoidal pressing blocks 1003 are pushed to move outwards by downward pressure, an anti-slip layer 1007 is arranged on the position, contacting with the blow molding bottle, of each trapezoidal pressing block 1003, and the anti-slip layer 1007 can remarkably increase friction force between the anti-slip layer and the blow molding bottle and improve fixing effect; one side of the trapezoidal pressing block 1003, which faces away from the blow-molded bottle, is fixedly provided with a plurality of groups of sliding rods 1004 through bolts, the other ends of the sliding rods 1004 penetrate through the fixed box 1001 and are connected with a second limiting block 1005, a second spring 1006 is arranged on the outer wall of the fixed box 1001 and is connected with the second limiting block 1005, the bottom of the blow-molded bottle is inserted into the placing groove 1002 in the process, the distance between the second limiting block 1005 and the fixed box 1001 is increased, the second spring 1006 is in a stretching state, and finally, each trapezoidal pressing block 1003 abuts against the bottom of the blow-molded bottle, so that the blow-molded bottle is fixed, the blow-molded bottle is effectively prevented from being toppled in the conveying process, the continuous air tightness detection of the blow-molded bottle is facilitated, and the detection efficiency is remarkably improved; the bottom of the fixing box 1001 is provided with a thread groove 1008, the surface of the conveying belt 6 is fixedly provided with a stud 13, the stud 13 is in threaded connection with the fixing box 1001 through the thread groove 1008, and the stud 13 is connected with or separated from the fixing box 1001 by rotating the fixing box 1001, so that the fixing box 1001 is convenient to disassemble and assemble, and the fixing box 1001 is convenient to replace;
the air tightness detection mechanism 1 comprises a lifting cylinder 101, a pressure plate 102, an annular groove 103, a hollow expansion ring 104, a fixing column 105, a first sealing disc 106, a second sealing disc 107, a cavity 108, a connecting cavity 109, a wear-resistant sealing ring 110, an electric push rod 111, a connecting pipe 112, an air transmission port 113, an air blowing pipe 114, an exhaust pipe 115, a connecting rod 120 and an air pressure sensor 121; the lifting cylinder 101 is fixedly installed at the bottom of the horizontal plate 3, the pressing plate 102 is horizontally arranged below the lifting cylinder 101, the pressing plate 102 is lifted through the lifting cylinder 101, a movable plate 116 is arranged above the pressing plate 102, a plurality of groups of guide rods 117 are fixedly installed at the top of the pressing plate 102 through bolts, and the guide rods 117 upwards penetrate through the movable plate 116 and are fixedly connected with a first limiting block 118; a first spring 119 is sleeved on the guide rod 117, the first spring 119 is connected with the movable plate 116 and the pressure plate 102, the bottom of the lifting cylinder 101 is connected with the movable plate 116, and when detection is carried out, the first spring 119 is in a compressed state and applies downward pressure to the pressure plate 102 so that the pressure plate 102 presses the mouth of the blow-molded product;
the bottom of the pressing plate 102 is provided with an annular groove 103, the mouth of the blow-molded bottle is inserted into the annular groove 103, the hollow expansion ring 104 is arranged in the annular groove 103 and is inserted into the mouth of the blow-molded bottle, the pressing plate 102 presses the mouth of the blow-molded bottle, the mouth of the blow-molded bottle is inserted into the annular groove 103, and the pressing plate 102 and the annular groove 103 preliminarily seal the mouth of the blow-molded bottle; the fixed column 105 is fixedly arranged at the bottom of the pressure plate 102, and a cavity 108 is formed in the fixed column 105; the fixing column 105 is provided with a connecting pipe 112 for communicating the hollow expansion ring 104 and the cavity 108, the connecting pipe 112 conveys gas into the hollow expansion ring 104, the hollow expansion ring 104 expands and presses the inner wall of the bottle mouth to perform secondary sealing on the bottle mouth, so that the sealing effect of the bottle mouth is obviously improved, the detection error is increased by preventing the gas from leaking from the bottle mouth in the detection process, the detection result is more accurate, the fixing column 105 is provided with a gas transmission port 113 communicated with the cavity 108, and the gas is conveyed into the blow-molded bottle through the gas transmission port 113; the first sealing disc 106 and the second sealing disc 107 are slidably arranged in the cavity 108, the first sealing disc 106 is positioned above the second sealing disc 107, the connecting rod 120 is fixedly connected with the first sealing disc 106 and the second sealing disc 107, the outer peripheral surface of the first sealing disc 106 and the outer peripheral surface of the second sealing disc 107 are both provided with wear-resistant sealing rings 110, and the wear-resistant sealing rings 110 are beneficial to improving the sealing effect and are not easy to wear; an electric push rod 111 is fixedly installed at the top of the cavity 108, the other end of the electric push rod 111 is connected with the top of the first sealing disc 106, and the electric push rod 111 enables the first sealing disc 106 to lift; a connecting cavity 109 is formed in the first sealing disc 106, an opening communicated with the connecting cavity 109 is formed in the bottom of the first sealing disc 106, an air pressure sensor 121 is fixedly mounted at the top of the second sealing disc 107 through a bolt, and the air pressure sensor 121 detects internal air pressure; an air blowing pipe 114 and an air exhaust pipe 115 which are communicated with the connecting cavity 109 are installed on the first sealing disc 106, the air blowing pipe 114 is used for air blowing and pressurization, the air exhaust pipe 115 is used for exhausting gas, the air blowing pipe 114 and the air exhaust pipe 115 are hoses, and an electromagnetic valve is arranged on the air exhaust pipe 115 and used for controlling gas output on the air exhaust pipe 115; when the second sealing disk 107 seals the transfer port 113, the connection between the connecting tube 112 and the cavity 108 is between the first sealing disk 106 and the second sealing disk 107; the gas transfer port 113 is located between the first sealing disk 106 and the second sealing disk 107 when the first sealing disk 106 seals the connection of the connecting tube 112 to the cavity 108.
A booster pump is fixedly arranged on the vertical plate 2 through a fixed seat, the gas outlet of the booster pump is connected with the gas blowing pipe 114, and the booster pump blows gas into the gas blowing pipe 114; a control panel 14 is fixedly installed on the vertical plate 2 through bolts, the control panel 14 is used for processing and analyzing data and sending out a control instruction, the infrared sensor 11 and the air pressure sensor 121 are respectively in communication connection with the control panel 14, the infrared sensor 11 and the air pressure sensor 121 send detected information to the control panel 14, the control panel 14 controls the driving motor 12, the lifting cylinder 101, the electric push rod 111 and the booster pump, the control panel 14 controls an electromagnetic valve on the exhaust pipe 115, and the control panel 14 controls the operation of each component; install the manipulator between two mounting panels 4, the manipulator is located the homonymy with driven voller 8, detect and accomplish the back, this blowing bottle through detecting is lived to the manipulator centre gripping, waste product box and non-defective products box are placed to one side that is close to driven voller 8, waste product box and non-defective products box are located the below of manipulator, waste product box is used for placing the unqualified blowing bottle of gas tightness detection, the non-defective products box is used for placing the qualified blowing bottle of gas tightness detection, according to gas tightness testing result, the manipulator carries the blowing bottle to waste product box or non-defective products box.
The working principle of the invention is as follows:
when the blow molding bottle is used, the bottom of the blow molding bottle is inserted into the placing groove 1002, the blow molding bottle presses each trapezoidal pressing block 1003 downwards, the downward pressure pushes each trapezoidal pressing block 1003 to move outwards, the distance between the second limiting block 1005 and the fixing box 1001 is increased, the second spring 1006 is in a stretching state, and finally each trapezoidal pressing block 1003 abuts against the bottom of the blow molding bottle, so that the blow molding bottle is fixed, the blow molding bottle is effectively prevented from being toppled in the conveying process, and the continuous air tightness detection of the blow molding bottle is facilitated;
starting a driving motor 12 to enable a driving roller 7 to rotate, conveying blown bottles by a conveying belt 6, sensing the blown bottles by an infrared sensor 11 when the blown bottles enter the lower part of the air tightness detection mechanism 1, stopping the operation of the driving motor 12, and stopping the conveying of the conveying belt 6; at the moment, the lifting cylinder 101 is started to enable the pressing plate 102 to descend until the pressing plate 102 presses the mouth of the blow-molded bottle, the mouth of the blow-molded bottle is inserted into the annular groove 103, and the pressing plate 102 and the annular groove 103 perform primary sealing on the mouth of the blow-molded bottle; the air blowing pipe 114 blows air into the connecting cavity 109, the connecting pipe 112 conveys the air into the hollow expansion ring 104, the hollow expansion ring 104 expands and presses against the inner wall of the bottle mouth (when the hollow expansion ring 104 starts to expand, the internal air pressure is kept unchanged due to the continuous increase of the internal space, when the hollow expansion ring 104 presses against the inner wall of the bottle mouth, the internal space is not increased, the air pressure is increased due to the continuous input of the air, the internal air pressure is detected according to the air pressure sensor 121, whether the hollow expansion ring 104 presses against the inner wall of the bottle mouth is judged according to the change of the internal air pressure, and the next step of operation is automatically carried out according to the judgment result), the secondary sealing is carried out on the bottle mouth, the sealing effect on the bottle mouth is obviously improved, and the detection error is increased due to the leakage of the air from the bottle mouth in the detection process is facilitated to be prevented, the detection result is more accurate;
starting an electric push rod 111 and stopping blowing air, wherein the electric push rod 111 lowers the first sealing plate 106 and the second sealing plate 107 until the first sealing plate 106 seals the communication position of the connecting pipe 112 and the cavity 108, and the air transmission port 113 is positioned between the first sealing plate 106 and the second sealing plate 107; the air blowing pipe 114 performs air blowing pressurization again, the air in the connecting cavity 109 enters the blow-molded bottle through the air conveying port 113, the air blowing is stopped after a certain time, the air pressure value at the moment is recorded, and the air pressure value is recorded again after the pressure is maintained for 7-10 s; the air pressure sensor 121 sends the two sets of air pressure data to the control panel 14, a processor in the control panel 14 analyzes the air pressure data, when the difference between the two sets of air pressure values is smaller than a preset value, the air tightness of the blow-molded bottle meets the requirement, otherwise, the air tightness of the blow-molded bottle does not meet the requirement; after the detection is finished, the air in the hollow expansion ring 104 and the blow-molded bottle is exhausted through the exhaust pipe 115, the air tightness detection mechanism 1 is lifted by the lifting cylinder 101 and separated from the blow-molded bottle, the conveying belt 6 is continuously conveyed to prepare for the detection of the next blow-molded bottle, the air tightness detection of the blow-molded bottle can be continuously carried out, and the detection efficiency is obviously improved.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the following claims.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (7)
1. A blow molding bottle air tightness detection device comprises an air tightness detection mechanism (1), a vertical plate (2), a horizontal plate (3), a mounting plate (4), supporting legs (5), a conveying belt (6), a driving roller (7), driven rollers (8) and a driving motor (12), wherein the mounting plate (4) comprises a front group and a rear group, the bottom of the mounting plate (4) is fixedly provided with the supporting legs (5) through bolts, the driving roller (7) and the driven rollers (8) are arranged on two sides of the mounting plate (4) through rotating shafts in a rotating way, the conveying belt (6) is connected with the driving roller (7) and the driven rollers (8), the driving motor (12) is fixedly arranged on one group of the mounting plates (4) through a motor base, the output end of the driving motor (12) is connected with the driving roller (7), the vertical plate (2) is fixedly arranged on one group of the mounting plates (4), the air tightness detection device is characterized in that a plurality of groups of anti-toppling mechanisms (10) are mounted on the conveying belt (6), the anti-toppling mechanisms (10) are arranged at equal intervals, a bearing plate (9) is fixedly arranged between two groups of mounting plates (4), an infrared sensor (11) is fixedly mounted on one group of mounting plates (4) through bolts, and the infrared sensor (11) is located below the air tightness detection mechanism (1);
the air tightness detection mechanism (1) comprises a lifting cylinder (101), a pressure plate (102), an annular groove (103), a hollow expansion ring (104), a fixing column (105), a first sealing disc (106), a second sealing disc (107), a cavity (108), a connecting cavity (109), a wear-resistant sealing ring (110), an electric push rod (111), a connecting pipe (112), an air delivery port (113), an air blowing pipe (114), an exhaust pipe (115), a connecting rod (120) and an air pressure sensor (121); the lifting cylinder (101) is fixedly installed at the bottom of the horizontal plate (3), the pressing plate (102) is horizontally arranged below the lifting cylinder (101), the lifting cylinder (101) acts on the pressing plate (102), an annular groove (103) is formed in the bottom of the pressing plate (102), a bottle mouth of a blow-molded bottle is inserted into the annular groove (103), the hollow expansion ring (104) is arranged in the annular groove (103) and is inserted into the bottle mouth of the blow-molded bottle, the fixing column (105) is fixedly installed at the bottom of the pressing plate (102), a cavity (108) is formed in the fixing column (105), a connecting pipe (112) communicating the hollow expansion ring (104) with the cavity (108) is installed on the fixing column (105), an air transfer port (113) communicated with the cavity (108) is formed in the fixing column (105), and the first sealing disc (106) and the second sealing disc (107) are slidably arranged in the cavity (108), first sealed dish (106) is located the top of second sealed dish (107), connecting rod (120) first sealed dish (106) of fixed connection and second sealed dish (107), the outer peripheral face of first sealed dish (106) and the outer peripheral face of second sealed dish (107) all are equipped with wear-resisting sealing ring (110), the top fixed mounting of cavity (108) has electric putter (111), and the other end of electric putter (111) is connected with the top of first sealed dish (106), seted up in first sealed dish (106) and connected chamber (109), the opening with being connected chamber (109) intercommunication is seted up to the bottom of first sealed dish (106), there is baroceptor (121) at the top of second sealed dish (107) through bolt fixed mounting, install tympany pipe (114) and blast pipe (115) that the intercommunication is connected chamber (109) on first sealed dish (106), the air blowing pipe (114) and the exhaust pipe (115) are hoses, and an electromagnetic valve is arranged on the exhaust pipe (115);
when the second sealing disc (107) seals the gas transfer port (113), the connection between the connecting tube (112) and the cavity (108) is between the first sealing disc (106) and the second sealing disc (107), and when the first sealing disc (106) seals the connection between the connecting tube (112) and the cavity (108), the gas transfer port (113) is between the first sealing disc (106) and the second sealing disc (107).
2. The apparatus for detecting the airtightness of a blow molded bottle according to claim 1, wherein the anti-toppling mechanism (10) comprises a fixed box (1001), a placement groove (1002), a trapezoidal pressing block (1003), a sliding rod (1004), a second limiting block (1005), a second spring (1006) and an anti-slip layer (1007);
the bottom of fixed box (1001) is connected with conveyer belt (6), standing groove (1002) have been seted up on fixed box (1001), and the bottle bottom of blowing bottle inserts in standing groove (1002), trapezoidal briquetting (1003) are equipped with the multiunit in standing groove (1002) and are annular array distribution around the blowing bottle, trapezoidal briquetting (1003) are the inclined plane towards the one side of blowing bottle bottleneck, the position that contacts with the blowing bottle on trapezoidal briquetting (1003) is equipped with skid resistant course (1007), there are multiunit slide bar (1004) trapezoidal briquetting (1003) one side of blowing bottle through bolt fixed mounting dorsad, the other end of slide bar (1004) passes fixed box (1001) and is connected with second stopper (1005), second spring (1006) set up the outer wall of fixed box (1001) and are connected with second stopper (1005).
3. The device for detecting the airtightness of the blow molded bottle according to claim 2, wherein a threaded groove (1008) is formed in the bottom of the fixing box (1001), a stud (13) is fixedly mounted on the surface of the conveyor belt (6), and the stud (13) is in threaded connection with the fixing box (1001) through the threaded groove (1008).
4. The blow molded bottle airtightness detection apparatus according to claim 1, wherein a booster pump is fixedly mounted on the vertical plate (2) through a fixing seat, an air outlet of the booster pump is connected with the blowing pipe (114), a control panel (14) is fixedly mounted on the vertical plate (2) through a bolt, the infrared sensor (11) and the air pressure sensor (121) are respectively in communication connection with the control panel (14), the control panel (14) controls the driving motor (12), the lifting cylinder (101), the electric push rod (111) and the booster pump, and the control panel (14) controls the electromagnetic valve on the exhaust pipe (115).
5. The apparatus for detecting the airtightness of a blow molded bottle according to claim 1, wherein a manipulator is installed between the two mounting plates (4), the manipulator is located on the same side as the driven roller (8), a waste box and a good box are placed on the side close to the driven roller (8), and the waste box and the good box are located below the manipulator.
6. The device for detecting the airtightness of the blow molded bottle according to claim 1, wherein a movable plate (116) is disposed above the pressure plate (102), a plurality of groups of guide rods (117) are fixedly mounted on the top of the pressure plate (102) through bolts, the guide rods (117) upwardly penetrate through the movable plate (116) and are fixedly connected to first limit blocks (118), first springs (119) are sleeved on the guide rods (117), the first springs (119) connect the movable plate (116) and the pressure plate (102), and the bottom of the lifting cylinder (101) is connected to the movable plate (116).
7. A detection method for a blow-molded bottle airtightness detection device is characterized by comprising the following steps:
s1, fixing the blow-molded bottle through the anti-toppling mechanism (10), and specifically operating as follows:
the bottom of the blow molding bottle is inserted into the placing groove (1002), the blow molding bottle presses each trapezoidal pressing block (1003) downwards, the downward pressure pushes each trapezoidal pressing block (1003) to move outwards, the distance between the second limiting block (1005) and the fixed box (1001) is increased, the second spring (1006) is in a stretching state, and finally each trapezoidal pressing block (1003) abuts against the bottom of the blow molding bottle;
s2, starting a driving motor (12) to enable a driving roller (7) to rotate, conveying a blow-molded bottle by a conveying belt (6), sensing the blow-molded bottle by an infrared sensor (11) when the blow-molded bottle enters the lower part of an air tightness detection mechanism (1), stopping the operation of the driving motor (12), and stopping the conveying of the conveying belt (6);
s3, starting the lifting cylinder (101) to enable the pressure plate (102) to descend until the pressure plate (102) presses the mouth of the blow-molded bottle, inserting the mouth of the blow-molded bottle into the annular groove (103), and sealing the mouth of the blow-molded bottle by the annular groove (103);
s4, blowing gas into the connecting cavity (109) by the gas blowing pipe (114), conveying the gas into the hollow expansion ring (104) by the connecting pipe (112), expanding the hollow expansion ring (104) and pressing the inner wall of the bottle mouth to perform secondary sealing on the bottle mouth;
s5, starting the electric push rod (111) and stopping blowing air, enabling the first sealing disc (106) and the second sealing disc (107) to descend by the electric push rod (111) until the first sealing disc (106) seals the communication position of the connecting pipe (112) and the cavity (108), and enabling the air transmission port (113) to be located between the first sealing disc (106) and the second sealing disc (107);
s6, blowing air again by the air blowing pipe (114), introducing the air in the connecting cavity (109) into the blow-molded bottle through the air conveying port (113), stopping blowing air after a certain time, and recording the air pressure value at the moment; keeping the pressure for 7-10s, and recording the air pressure value again;
s7, the air pressure sensor (121) sends the two sets of air pressure data to the control panel (14), a processor in the control panel (14) analyzes the air pressure data, when the difference between the two sets of air pressure values is smaller than a preset value, the air tightness of the blow-molded bottle meets the requirement, otherwise, the air tightness of the blow-molded bottle does not meet the requirement;
s8, after the detection is finished, the air exhaust pipe (115) exhausts the air in the hollow expansion ring (104) and the blow molded bottle, the air tightness detection mechanism (1) is separated from the blow molded bottle, the conveying belt (6) continues to convey, and the next blow molded bottle is prepared for detection.
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| CN114166440A (en) * | 2021-11-30 | 2022-03-11 | 安徽东盛友邦制药有限公司 | Oral liquid bottle is with sealed detection mechanism and based on examining test table of this mechanism |
| CN114486082A (en) * | 2021-12-29 | 2022-05-13 | 西峡县内燃机进排气管有限责任公司 | Air tightness detection device of turbocharger shell |
| CN114986926A (en) * | 2022-06-15 | 2022-09-02 | 江苏江平新环境科技有限公司 | Production equipment for composite phenolic resin air-conditioning insulation board |
| CN115077797A (en) * | 2022-05-05 | 2022-09-20 | 芜湖中氢新能源科技有限公司 | Integrated hydrogen purification device for hydrogen production from natural gas |
| CN115235689A (en) * | 2022-07-13 | 2022-10-25 | 苏州模方包装容器有限公司 | Daily production packing bottle online leakproofness check out test set |
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| CN114486082B (en) * | 2021-12-29 | 2024-03-15 | 西峡县内燃机进排气管有限责任公司 | Air tightness detection device of turbocharger shell |
| CN115077797A (en) * | 2022-05-05 | 2022-09-20 | 芜湖中氢新能源科技有限公司 | Integrated hydrogen purification device for hydrogen production from natural gas |
| CN114986926A (en) * | 2022-06-15 | 2022-09-02 | 江苏江平新环境科技有限公司 | Production equipment for composite phenolic resin air-conditioning insulation board |
| CN114986926B (en) * | 2022-06-15 | 2023-09-19 | 江苏江平新环境科技有限公司 | Compound phenolic resin air conditioner heated board production facility |
| CN115235689A (en) * | 2022-07-13 | 2022-10-25 | 苏州模方包装容器有限公司 | Daily production packing bottle online leakproofness check out test set |
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